Uplink control information transmission
The UE optimizes UCI transmission in 5G NR systems by determining appropriate resources for HARQ-ACK, SR, and CSI reports, addressing inefficiencies in existing systems and enhancing communication performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LENOVO (BEIJING) LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-04
AI Technical Summary
Existing 5G NR systems face challenges in enhancing uplink control information (UCI) transmission, particularly in determining appropriate physical resources for Hybrid Automatic Repeat Request (HARQ) feedback, scheduling requests (SR), and channel state information (CSI) reports.
A user equipment (UE) determines and transmits UCI on physical uplink shared channels (PUSCH) or physical uplink control channels (PUCCH) based on configured or indicated resources, considering various UCI types, priorities, and timelines, and network configurations to optimize UCI transmission.
Enhances UCI transmission efficiency by optimizing resource allocation and timing for HARQ-ACK, SR, and CSI reports, improving communication performance in 5G NR systems.
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Figure CN2025111994_04062026_PF_FP_ABST
Abstract
Description
UPLINK CONTROL INFORMATION TRANSMISSIONTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to a user equipment (UE) , a base station, processors for wireless communication and methods for uplink control information (UCI) transmission.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
[0003] In 5G new radio (NR) systems, the UE may transmit UCI to the base station. The UCI types may include Hybrid Automatic Repeat Request (HARQ) feedback, scheduling request (SR) , and channel state information (CSI) . Enhancements on UCI transmission are still needed.SUMMARY
[0004] The present disclosure relates to methods, apparatuses, and systems that support UCI transmission.
[0005] In a first aspect of the solution, a UE determines at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; and transmits, to a network entity, the at least one UCI in the at least one PUSCH resource.
[0006] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one of the following: at least one hybrid automatic repeat request acknowledgement (HARQ-ACK) ; at least one scheduling request (SR) ; or at least one channel state information (CSI) report.
[0007] In some implementations of the method and apparatuses described herein, the at least one UCI are UCIs to be transmitted in a same time unit; wherein the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit.
[0008] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, at least one of the following: an indication associated with a physical downlink shared channel (PDSCH) transmission, wherein a respective time unit for transmitting a HARQ-ACK corresponding to the PDSCH transmission is determined based on the indication associated with the PDSCH transmission; a first network configuration, wherein the first network configuration is indicative of a periodicity and an offset associated with time units for SR transmission, wherein a respective time unit for transmitting a SR is determined based on the first network configuration; a second network configuration, wherein the second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission, wherein a respective time unit for transmitting a CSI report of a first type is determined based on the second network configuration, or downlink control information (DCI) associated with a CSI report of a second type, wherein a respective time unit for transmitting the CSI report of a second type is determined based on an indication in the DCI.
[0009] In some implementations of the method and apparatuses described herein, the UCIs to be transmitted in a same time unit are all UCIs associated with all UCI types to be transmitted in the time unit.
[0010] In some implementations of the method and apparatuses described herein, the UCIs to be transmitted in a same time unit are all UCIs associated with at least one of the following: same UCI type, same UCI priority, or same UCI group, or same UCI time behavior.
[0011] Some implementations of the method and apparatuses described herein may further include: separately determining PUSCH resources for transmitting UCIs to be transmitted in the same time unit and associated with different UCI types, different UCI priorities, or different UCI groups or different UCI time behaviors.
[0012] In some implementations of the method and apparatuses described herein, the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit based on at least one of the following: all of the set of PUSCH resources in the time unit are determined for transmitting the at least one UCI; a PUSCH resource with a predefined index among the set of PUSCH resources is determined for transmitting the at least one UCI, wherein the set of PUSCH resources are indexed in a predefined order; a PUSCH resource with a highest priority among the set of PUSCH resources is determined for transmitting the at least one UCI; a dynamic scheduling PUSCH resource has a higher priority or a lower priority to be determined for transmitting the at least one UCI than a periodic PUSCH resource; a periodic PUSCH resource of type 1 has a higher priority or a lower priority to be determined for transmitting the at least one UCI than a periodic PUSCH resource of type 2; a periodic PUSCH resource associated with a lowest or a highest index is determined for transmitting the at least one UCI; a PUSCH resource carrying at least one aperiodic CSI report has a higher priority to be determined for transmitting the at least one UCI than a PUSCH resource carrying no aperiodic CSI report; a PUSCH resource meeting a timeline is determined for transmitting the at least one UCI, wherein the timeline is determined based on at least one processing time for the at least one UCI or a combined processing time for the at least one UCI; a PUSCH resource meeting a size requirement associated with a UCI bit number of the at least one UCI is determined for transmitting the at least one UCI; a PUSCH resource indicated to be available for UCI transmission is determined for transmitting the at least one UCI; a PUSCH resource indicated to be associated with a UCI type is determined for transmitting the at least one UCI of the UCI type; or a PUSCH resource determined to be used for transmitting the at least one UCI is indicated by a DCI, wherein the DCI is indicative of a PUSCH resource among a set of PUSCH resources in the time unit, wherein the DCI is one of the following: a last DCI among one or more DCIs associated with at least one PDSCH transmission corresponding to at least one HARQ-ack comprised in the at least one UCI, or a last DCI among at least one DCI associated with the at least one UCI.
[0013] In some implementations of the method and apparatuses described herein, the time unit comprises no PUSCH resource available for transmitting the at least one UCI. Some implementations of the method and apparatuses described herein may further include at least one of the following: not transmitting at least one SR comprised in the at least one UCI; or not transmitting at least one CSI report comprised in the at least one UCI.
[0014] In some implementations of the method and apparatuses described herein, the at least one UCI comprise at least one HARQ-ack, and wherein the time unit comprises no PUSCH resource available for transmitting the at least one UCI. Some implementations of the method and apparatuses described herein may further include: deferring transmission of the at least one UCI or the at least one HARQ-ack to a new PUSCH resource.
[0015] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, a DCI scheduling the new PUSCH resource, wherein the time unit for transmitting the at least one UCI is within a time window before the DCI or before the new PUSCH resource; and retransmitting, to the network entity, the at least one UCI or the at least one HARQ-ack in the new PUSCH resource.
[0016] In some implementations of the method and apparatuses described herein, the DCI comprises at least one of the following: an indication that the new PUSCH resource is used for UCI transmission or UCI retransmission, or an indication of UCI types for which the new PUSCH resource is used for UCI transmission.
[0017] In some implementations of the method and apparatuses described herein, the new PUSCH resource is in a latest time unit with PUSCH resources available for UCI transmission within a time window after the time unit. Some implementations of the method and apparatuses described herein may further include: retransmitting, to the network entity, the at least one UCI or the at least one HARQ-ack in the new PUSCH resource.
[0018] Some implementations of the method and apparatuses described herein may further include: determining absence of a new PUSCH resource; and not transmitting the at least one UCI.
[0019] In some implementations of the method and apparatuses described herein, the at least one UCI comprise at least one HARQ-ack. The time unit comprises no PUSCH resource available for transmitting the at least one UCI. Some implementations of the method and apparatuses described herein may further include: transmitting, to the network entity, the at least one UCI or the at least one HARQ-ack in a configured PUSCH resource.
[0020] In some implementations of the method and apparatuses described herein, the at least one PUSCH resource is determined based on an indication associated with the at least one UCI.
[0021] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one SR associated with at least one SR configuration. Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, a periodic PUSCH resource configuration associated with at least one SR configuration. A respective PUSCH resource for transmitting the at least one SR is determined based on the periodic PUSCH resource configuration.
[0022] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one CSI report associated with at least one CSI configuration. Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, a periodic PUSCH resource configuration associated with the at least one CSI configuration. A respective PUSCH resource for transmitting the at least one CSI report is determined based on the periodic PUSCH resource configuration.
[0023] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one HARQ-ack. The at least one HARQ-ack corresponds to at least one PDSCH transmission of at least one periodic PDSCH configuration. Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, a periodic PUSCH resource configuration associated with the at least one periodic PDSCH configuration. A respective PUSCH resource for transmitting the at least one HARQ-ack is determined based on the periodic PUSCH resource configuration.
[0024] In some implementations of the method and apparatuses described herein, the periodic PUSCH resource configuration is activated after a first number of time units from a first PDSCH transmission of the at least one periodic PDSCH configuration.
[0025] In some implementations of the method and apparatuses described herein, the at least one UCI comprises a HARQ-ack corresponding to a PDSCH transmission scheduled by a DCI, wherein the DCI comprises an indication of a respective PUSCH resource for transmitting the HARQ-ack.
[0026] In some implementations of the method and apparatuses described herein, the UCI comprises a HARQ-ack corresponding to a PDSCH transmission scheduled by a DCI. Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, at least one periodic PUSCH resource configuration; and wherein the DCI comprises an indication of one periodic PUSCH resource configuration among the at least one periodic PUSCH resource configuration, wherein a respective PUSCH resource for transmitting the HARQ-ack is determined based on the one periodic PUSCH resource configuration.
[0027] In some implementations of the method and apparatuses described herein, the respective PUSCH resource for transmitting the HARQ-ack is in a respective time unit for transmitting the HARQ-ack.
[0028] In some implementations of the method and apparatuses described herein, the respective PUSCH resource for transmitting the HARQ-ack is a latest PUSCH resource based on the periodic PUSCH resource configuration.
[0029] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI type or a UCI type combination that can be transmitted in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI type or the indicated UCI type combination; and transmitting, to the network entity, the at least one UCI in the PUSCH resource.
[0030] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates whether UCI can be transmitted in the PUSCH resource; and transmitting, to the network entity, the at least one UCI in the PUSCH resource, wherein the indication of the PUSCH resource indicates that UCI can be transmitted in the PUSCH resource.
[0031] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI priority or a UCI group index that can be transmitted in the PUSCH resource; and transmitting, to the network entity, the at least one UCI in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI priority or the indicated UCI group index.
[0032] In some implementations of the method and apparatuses described herein, the indication of the PUSCH resource further indicates whether there is uplink shared channel (UL-SCH) in the PUSCH resource.
[0033] In some implementations of the method and apparatuses described herein, the at least one UCI comprises a HARQ-ACK, and the at least one UCI transmitted in the PUSCH resource comprises at least one HARQ-ACK corresponding to at least one PDSCH transmission in a time window before the PUSCH resource.
[0034] In some implementations of the method and apparatuses described herein, the indication of the PUSCH resource is comprised in a DCI scheduling the PUSCH resource.
[0035] In some implementations of the method and apparatuses described herein, the PUSCH resource is a configured resource, and the indication of the PUSCH resource is comprised in a PUSCH resource configuration associated with the PUSCH resource.
[0036] In some implementations of the method and apparatuses described herein, a field of the indication of the PUSCH resource is one of the following: a HARQ process number field; a new data indicator field; or a redundancy version field.
[0037] In some implementations of the method and apparatuses described herein, a set of candidate UCI type combinations are predefined or preconfigured, and the UCI type combination that can be transmitted in the PUSCH resource is indicated by an index of a candidate UCI type combination among the set of candidate UCI type combinations.
[0038] In some implementations of the method and apparatuses described herein, the at least one UCI is associated with multiple UCI types. Some implementations of the method and apparatuses described herein may further include: jointly encoding bits for the at least one UCI on the at least one PUSCH resource.
[0039] In some implementations of the method and apparatuses described herein, a total bit number of the least one UCI is equal to or larger than a threshold.
[0040] In a second aspect of the solution, a UE determines a time unit for transmitting at least one uplink control information (UCI) . The at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type. The UE determines a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and transmits, to a network entity, the at least one UCI in the PUCCH resource.
[0041] In some implementations of the method and apparatuses described herein, the PUCCH resource is indicated in a last DCI among at least one DCI associated with the at least one UCI.
[0042] In some implementations of the method and apparatuses described herein, the at least one UCI are UCIs to be transmitted in a same time unit; wherein the at least one PUCCH resource is determined from a set of PUCCH resources in the time unit.
[0043] Some implementations of the method and apparatuses described herein may further include: receiving, from the network entity, at least one of the following: an indication associated with a physical downlink shared channel (PDSCH) transmission, wherein a respective time unit for transmitting a HARQ-ack corresponding to the PDSCH transmission is determined based on the indication associated with the PDSCH transmission; a first network configuration, wherein the first network configuration is indicative of a periodicity and an offset associated with time units for SR transmission, wherein a respective time unit for transmitting a SR is determined based on the first network configuration; a second network configuration, wherein the second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission, wherein a respective time unit for transmitting a CSI report of a first type is determined based on the second network configuration, or downlink control information (DCI) associated with a CSI report of a second type, wherein a respective time unit for transmitting the CSI report of a second type is determined based on an indication in the DCI.
[0044] In some implementations of the method and apparatuses described herein, the PUCCH resource meets a timeline associated with the at least one UCI. The timeline is determined based on at least one processing time for the at least one UCI or a combined processing time for the at least one UCI.
[0045] In a third aspect of the solution, a network entity determines at least one physical uplink shared channel (PUSCH) resource for receiving at least one uplink control information (UCI) ; and receives, from a user equipment (UE) , the at least one UCI in the at least one PUSCH resource.
[0046] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one of the following: at least one hybrid automatic repeat request acknowledgement (HARQ-ACK) ; at least one scheduling request (SR) ; or at least one channel state information (CSI) report.
[0047] In some implementations of the method and apparatuses described herein, the at least one UCI are UCIs to be received in a same time unit; wherein the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit.
[0048] Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, at least one of the following: an indication associated with a physical downlink shared channel (PDSCH) transmission, wherein a respective time unit for receiving a HARQ-ACK corresponding to the PDSCH transmission is determined based on the indication associated with the PDSCH transmission; a first network configuration, wherein the first network configuration is indicative of a periodicity and an offset associated with time units for SR transmission, wherein a respective time unit for receiving a SR is determined based on the first network configuration; a second network configuration, wherein the second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission, wherein a respective time unit for receiving a CSI report of a first type is determined based on the second network configuration, or downlink control information (DCI) associated with a CSI report of a second type, wherein a respective time unit for receiving the CSI report of a second type is determined based on an indication in the DCI.
[0049] In some implementations of the method and apparatuses described herein, the UCIs to be received in a same time unit are all UCIs associated with all UCI types to be received in the time unit.
[0050] In some implementations of the method and apparatuses described herein, the UCIs to be received in a same time unit are all UCIs associated with at least one of the following: same UCI type, same UCI priority, same UCI group, or same UCI time behavior.
[0051] Some implementations of the method and apparatuses described herein may further include: separately determining PUSCH resources for receiving UCIs to be received in the same time unit and associated with different UCI types, different UCI priorities, or different UCI groups or different UCI time behaviors.
[0052] In some implementations of the method and apparatuses described herein, the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit based on at least one of the following: all of the set of PUSCH resources in the time unit are determined for receiving the at least one UCI; a PUSCH resource with a predefined index among the set of PUSCH resources is determined for receiving the at least one UCI, wherein the set of PUSCH resources are indexed in a predefined order; a PUSCH resource with a highest priority among the set of PUSCH resources is determined for receiving the at least one UCI; a dynamic scheduling PUSCH resource has a higher priority or a lower priority to be determined for receiving the at least one UCI than a periodic PUSCH resource; a periodic PUSCH resource of type 1 has a higher priority or a lower priority to be determined for receiving the at least one UCI than a periodic PUSCH resource of type 2; a periodic PUSCH resource associated with a lowest or a highest index is determined for receiving the at least one UCI; a PUSCH resource carrying at least one aperiodic CSI report has a higher priority to be determined for receiving the at least one UCI than a PUSCH resource carrying no aperiodic CSI report; a PUSCH resource meeting a timeline is determined for receiving the at least one UCI, wherein the timeline is determined based on at least one processing time for the at least one UCI or a combined processing time for the at least one UCI; a PUSCH resource meeting a size requirement associated with a UCI bit number of the at least one UCI is determined for receiving the at least one UCI; a PUSCH resource indicated to be available for UCI transmission is determined for receiving the at least one UCI; a PUSCH resource indicated to be associated with a UCI type is determined for receiving the at least one UCI of the UCI type; or a PUSCH resource determined to be used for receiving the at least one UCI is indicated by a DCI, wherein the DCI is indicative of a PUSCH resource among a set of PUSCH resources in the time unit, wherein the DCI is one of the following: a last DCI among one or more DCIs associated with at least one PDSCH transmission corresponding to at least one HARQ-ACK comprised in the at least one UCI, or a last DCI among at least one DCI associated with the at least one UCI.
[0053] In some implementations of the method and apparatuses described herein, the time unit comprises no PUSCH resource available for receiving the at least one UCI. Some implementations of the method and apparatuses described herein may further include at least one of the following: not receiving at least one SR comprised in the at least one UCI; or not receiving at least one CSI report comprised in the at least one UCI.
[0054] In some implementations of the method and apparatuses described herein, the at least one UCI comprise at least one HARQ-ACK, and wherein the time unit comprises no PUSCH resource available for receiving the at least one UCI. Some implementations of the method and apparatuses described herein may further include: deferring reception of the at least one UCI or the at least one HARQ-ACK to a new PUSCH resource.
[0055] Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, a DCI scheduling the new PUSCH resource, wherein the time unit for receiving the at least one UCI is within a time window before the DCI or before the new PUSCH resource; and receiving, to the network entity, the at least one UCI in the new PUSCH resource.
[0056] In some implementations of the method and apparatuses described herein, the DCI comprises at least one of the following: an indication that the new PUSCH resource is used for UCI transmission or UCI retransmission, or an indication of UCI types for which the new PUSCH resource is used for UCI transmission.
[0057] In some implementations of the method and apparatuses described herein, the new PUSCH resource is in a latest time unit with PUSCH resources available for UCI transmission within a time window after the time unit. Some implementations of the method and apparatuses described herein may further include: receiving, to the network entity, the at least one UCI in the new PUSCH resource.
[0058] Some implementations of the method and apparatuses described herein may further include: determining absence of a new PUSCH resource; and not receiving the at least one UCI.
[0059] In some implementations of the method and apparatuses described herein, the at least one UCI comprise at least one HARQ-ACK, wherein the time unit comprises no PUSCH resource available for receiving the at least one UCI. Some implementations of the method and apparatuses described herein may further include: receiving, from the UE, the at least one UCI or the at least one HARQ-ACK in a configured PUSCH resource.
[0060] In some implementations of the method and apparatuses described herein, the at least one PUSCH resource is determined based on an indication associated with the at least one UCI.
[0061] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one SR associated with at least one SR configuration. Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, a periodic PUSCH resource configuration associated with the at least one SR configuration, wherein a respective PUSCH resource for receiving the at least one SR is determined based on the periodic PUSCH resource configuration.
[0062] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one CSI report associated with at least one CSI configuration. Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, a periodic PUSCH resource configuration associated with the at least one CSI configuration, wherein a respective PUSCH resource for receiving the at least one CSI report is determined based on the periodic PUSCH resource configuration.
[0063] In some implementations of the method and apparatuses described herein, the at least one UCI comprises at least one HARQ-ACK. The at least one HARQ-ACK corresponds to at least one PDSCH transmission of at least one periodic PDSCH configuration. Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, a periodic PUSCH resource configuration associated with the at least one periodic PDSCH configuration, wherein a respective PUSCH resource for receiving the at least one HARQ-ACK is determined based on the periodic PUSCH resource configuration.
[0064] In some implementations of the method and apparatuses described herein, the periodic PUSCH resource configuration is activated after a first number of time units from a first PDSCH transmission of the at least one periodic PDSCH configuration.
[0065] In some implementations of the method and apparatuses described herein, the at least one UCI comprises a HARQ-ACK corresponding to a PDSCH transmission scheduled by a DCI, wherein the DCI comprises an indication of a respective PUSCH resource for receiving the HARQ-ACK.
[0066] In some implementations of the method and apparatuses described herein, the UCI comprises a HARQ-ACK corresponding to a PDSCH transmission scheduled by a DCI. Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, at least one periodic PUSCH resource configuration; and wherein the DCI comprises an indication of one periodic PUSCH resource configuration among the at least one periodic PUSCH resource configuration, wherein a respective PUSCH resource for receiving the HARQ-ACK is determined based on the one periodic PUSCH resource configuration.
[0067] In some implementations of the method and apparatuses described herein, the respective PUSCH resource for receiving the HARQ-ACK is in a respective time unit for receiving the HARQ-ACK.
[0068] In some implementations of the method and apparatuses described herein, the respective PUSCH resource for receiving the HARQ-ACK is a latest PUSCH resource based on the periodic PUSCH resource configuration.
[0069] Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI type or a UCI type combination that can be received in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI type or the indicated UCI type combination; and receiving, from the UE, the at least one UCI in the PUSCH resource.
[0070] Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates whether UCI can be received in the PUSCH resource; and receiving, from the UE, the at least one UCI in the PUSCH resource, wherein the indication of the PUSCH resource indicates that UCI can be received in the PUSCH resource.
[0071] Some implementations of the method and apparatuses described herein may further include: transmitting, to the UE, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI priority or a UCI group index that can be received in the PUSCH resource; and receiving, from the UE, the at least one UCI in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI priority or the indicated UCI group index.
[0072] In some implementations of the method and apparatuses described herein, the indication of the PUSCH resource further indicates whether there is uplink shared channel (UL-SCH) in the PUSCH resource.
[0073] In some implementations of the method and apparatuses described herein, the at least one UCI comprises a HARQ-ACK, and the at least one UCI received in the PUSCH resource comprises at least one HARQ-ACK corresponding to at least one PDSCH transmission in a time window before the PUSCH resource.
[0074] In some implementations of the method and apparatuses described herein, the indication of the PUSCH resource is comprised in a DCI scheduling the PUSCH resource.
[0075] In some implementations of the method and apparatuses described herein, the PUSCH resource is a configured resource, and the indication of the PUSCH resource is comprised in a PUSCH resource configuration associated with the PUSCH resource.
[0076] In some implementations of the method and apparatuses described herein, a field of the indication of the PUSCH resource is one of the following: a HARQ process number field; a new data indicator field; or a redundancy version field.
[0077] In some implementations of the method and apparatuses described herein, a set of candidate UCI type combinations are predefined or preconfigured, and the UCI type combination that can be received in the PUSCH resource is indicated by an index of a candidate UCI type combination among the set of candidate UCI type combinations.
[0078] In some implementations of the method and apparatuses described herein, the at least one UCI is associated with multiple UCI types. Some implementations of the method and apparatuses described herein may further include: jointly encoding bits for the at least one UCI on the at least one PUSCH resource.
[0079] In some implementations of the method and apparatuses described herein, a total bit number of the least one UCI is equal to or larger than a threshold.
[0080] In a fourth aspect of the solution, a network entity determines a time unit for receiving at least one uplink control information (UCI) . The at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type. The network entity determines a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and receives, from a user equipment (UE) , the at least one UCI in the PUCCH resource.
[0081] In some implementations of the method and apparatuses described herein, the PUCCH resource is indicated in a last DCI among at least one DCI associated with the at least one UCI.
[0082] In some implementations of the method and apparatuses described herein, the at least one UCI are UCIs to be received in a same time unit; wherein the at least one PUCCH resource is determined from a set of PUCCH resources in the time unit.
[0083] Some implementations of the method and apparatuses described herein may further include:
[0084] transmitting, to the UE, at least one of the following: an indication associated with a physical downlink shared channel (PDSCH) transmission, wherein a respective time unit for receiving a HARQ-ACK corresponding to the PDSCH transmission is determined based on the indication associated with the PDSCH transmission; a first network configuration, wherein the first network configuration is indicative of a periodicity and an offset associated with time units for SR transmission, wherein a respective time unit for receiving a SR is determined based on the first network configuration; a second network configuration, wherein the second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission, wherein a respective time unit for receiving a CSI report of a first type is determined based on the second network configuration, or downlink control information (DCI) associated with a CSI report of a second type, wherein a respective time unit for receiving the CSI report of a second type is determined based on an indication in the DCI.
[0085] In some implementations of the method and apparatuses described herein, the PUCCH resource meets a timeline associated with the at least one UCI. The timeline is determined based on at least one processing time for the at least one UCI or a combined processing time for the at least one UCI.BRIEF DESCRIPTION OF THE DRAWINGS
[0086] FIG. 1A illustrates an example of a wireless communications system that supports UCI transmission in accordance with aspects of the present disclosure.
[0087] FIG. 1B illustrates an example diagram of resource determination for HARQ-ACK transmission.
[0088] FIG. 2 illustrates an example signaling chart of a communication process that supports UCI transmission in PUSCH resource in accordance with some example embodiments of the present disclosure.
[0089] FIGS. 3A-3E illustrate example diagrams of determination of time units for UCI transmission in accordance with some example embodiments of the present disclosure.
[0090] FIGS. 4A-4B illustrate example diagrams of determination of PUSCH resources for HARQ-ACK retransmission in accordance with some example embodiments of the present disclosure.
[0091] FIGS. 5A-5D illustrate example diagrams of DCI fields associated with PUSCH in accordance with some example embodiments of the present disclosure.
[0092] FIG. 6 illustrates an example signaling chart of a communication process that supports UCI transmission in PUCCH resource in accordance with some example embodiments of the present disclosure.
[0093] FIG. 7 illustrates an example of a device that supports UCI transmission in accordance with aspects of the present disclosure.
[0094] FIG. 8 illustrates an example of a processor that supports UCI transmission in accordance with aspects of the present disclosure.
[0095] FIGS. 9 through 12 illustrate flowcharts of methods that support UCI transmission in accordance with aspects of the present disclosure.
[0096] Throughout the drawings, the same or similar reference numerals represent the same or similar elements.DETAILED DESCRIPTION
[0097] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.
[0098] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0099] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0100] It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0101] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprise” , “comprising” , “has” , “having” , “include” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. For example, the term “includes” and its variants are to be read as open terms that mean “includes, but is not limited to. ” The term “based on” is to be read as “based at least in part on. ” The term “one embodiment” and “an embodiment” are to be read as “at least one embodiment. ” The term “another embodiment” is to be read as “at least one other embodiment. ” The use of an expression such as “A and / or B” can mean either “only A” or “only B” or “both A and B. ” Other definitions, explicit and implicit, may be included below.
[0102] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as, 5G NR, long term evolution (LTE) , LTE-advanced (LTE-A) , wideband code division multiple access (WCDMA) , high-speed packet access (HSPA) , narrow band internet of things (NB-IoT) , and so on. Further, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will also be future type communication technologies and systems in which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned systems.
[0103] As used herein, the term “network device” generally refers to a node in a communication network via which a terminal device can access the communication network and receive services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , a radio access network (RAN) node, an evolved NodeB (eNodeB or eNB) , an NR NB (also referred to as a gNB) , a remote radio unit (RRU) , a radio header (RH) , an infrastructure device for a V2X (vehicle-to-everything) communication, a transmission and reception point (TRP) , a reception point (RP) , a remote radio head (RRH) , a relay, an integrated access and backhaul (IAB) node, a low power node such as a femto BS, a pico BS, and so forth, depending on the applied terminology and technology.
[0104] As used herein, the term “terminal device” generally refers to any end device that may be capable of wireless communications. By way of example rather than a limitation, a terminal device may also be referred to as a communication device, a user equipment (UE) , an end user device, a subscriber station (SS) , an unmanned aerial vehicle (UAV) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) . The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet, a wearable terminal device, a personal digital assistant (PDA) , a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a gaming terminal device, a music storage and playback appliance, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , a USB dongle, a smart device, wireless customer-premises equipment (CPE) , an internet of things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device (for example, a remote surgery device) , an industrial device (for example, a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. In the following description, the terms: “terminal device, ” “communication device, ” “terminal, ” “user equipment” and “UE, ” may be used interchangeably.
[0105] Aspects of the present disclosure are described in the context of a wireless communications system.
[0106] FIG. 1A illustrates an example of a wireless communications system 100 that supports UCI transmission in accordance with aspects of the present disclosure. The wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment (NE) ) , one or more UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In some other implementations, the wireless communications system 100 may be a 6G network. In other implementations, the wireless communications system 100 may be a combination of at least one of a 4G network, a 5G network, a 6G network or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0107] The one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a radio access network (RAN) , a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
[0108] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0109] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0110] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in FIG. 1A. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in FIG. 1A. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0111] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0112] A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N3, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0113] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN Intelligent Controller (RIC) (e.g., a Near-Real Time RIC (Near-RT RIC) , a Non-Real Time RIC (Non-RT RIC) ) , a Service Management and Orchestration (SMO) system, or any combination thereof.
[0114] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0115] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaption protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160.
[0116] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0117] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0118] The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as registration management, mobility management, connection management, access authentication / authorization, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
[0119] The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N3, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
[0120] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0121] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0122] A time interval of a resource (e.g., a communication resource) may be allocated according to time units, the time unit could be one or more frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0123] Additionally or alternatively, a time unit could be one or more slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0124] Additionally or alternatively, a time unit could be one or more symbols.
[0125] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0126] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0127] In 5G NR system, UCI type reported in PUCCH could include HARQ-ACK, SR, CSI. There are multiple PUCCH formats. PUCCH format 0 and PUCCH format 1 are for HARQ-ACK or SR bits of 1 bit or 2 bits, PUCCH format 2, PUCCH format 3 and PUCCH format 4 are for multiple UCI bits (more than 2 bits) .
[0128] For HARQ-ACK transmission, there could be a K1 indication for each PDSCH to indicate the time unit (e.g., slot / sub-slot) used for the HARQ-ACK transmission. In detail, the K1 indicates the time unit number between the time unit for PDSCH transmission and the time unit for HARQ-ACK transmission. K1 could be one value from a set of K1 values. FIG. 1B illustrates an example diagram of resource determination for HARQ-ACK transmission. In the example shown in FIG. 1B, PDSCH is transmitted in time unit n. Assuming K1=4, the HARQ-ACK should be transmitted in time unit n+4.
[0129] Up to four sets PUCCH resource sets could be configured for HARQ-ACK transmission. There could be multiple PUCCH resource in the PUCCH resource set.
[0130] In some embodiments, for a time unit, all the HARQ-ACK bits, that should be transmitted in time unit n+K1, would be generated as a HARQ-ACK code book. In some embodiments, the priority of HARQ-ACK could be indicated when the PDSCH is scheduled. All the HARQ-ACK bits, that should be transmitted in time unit n+K1 and with same priority, would be generated as a HARQ-ACK code book. In some embodiments, the group index of HARQ-ACK could be indicated when the PDSCH is scheduled. All the HARQ-ACK bits, that should be transmitted in time unit n+K1 and with same group index, would be generated as a HARQ-ACK code book.
[0131] A HARQ-ACK code book is a sequence of HARQ-ACK bits in the predefined order. And UE could determine a PUCCH resource set from the multiple PUCCH resource sets according to the bit number of the HARQ-ACK, and then determine a PUCCH resource from the PUCCH resource set according to a last DCI corresponding to the HARQ-ACK codebook. UE uses the determined PUCCH resource to transmit the HARQ-ACK codebook.
[0132] For SR transmission, a UE can be configured, by SchedulingRequestResourceConfig, with a set of configurations for SR in a PUCCH transmission using either PUCCH format 0 or PUCCH format 1. The used PUCCH resouce is indicated by configured PUCCH ID for the SR configuration. The UE is also configured with a periodicity SRPERIODICITY in symbols or slots and an offset SROFFSET in slots by periodicityAndOffset for a PUCCH transmission conveying SR.
[0133] If SRPERIODICITY is larger than one slot, the UE determines a SR transmission occasion in a PUCCH to be in a slot with number [4, TS 38.211] in a frame with number nf if
[0134] If SRPERIODICITY is one slot, the UE expects that SROFFSET=0 and every slot is a SR transmission occasion in a PUCCH.
[0135] If SRPERIODICITY is smaller than one slot, the UE determines a SR transmission occasion in a PUCCH to start in a symbol with index l [4, TS 38.211] if (l-l0modSRPERIODICITY) modSRPERIODICITY=0 where l0 is the value of startingSymbolIndex.
[0136] The UE transmits a UCI in the PUCCH resource for the corresponding SR configuration only when the UE transmits a positive SR.
[0137] For CSI reporting, there could be three type of CSI, including periodic CSI, aperiodic CSI (A-CSI) , and semi-static CSI.
[0138] A-CSI is transmitted in PUSCH resource, which is trigger by a DCI using CSI request field. And the DCI could also indicate the PUSCH is with or without UL-SCH by another field. The PUSCH resource is also indicated by the DCI.
[0139] Periodic CSI is transmitted in PUCCH resource, the location of the PUCCH resource is configured by RRC singling
[0140] Semi-static CSI is transmitted in PUCCH resource when MAC CE activates the CSI report, PUSCH is used for CSI reporting when the CSI report is triggered by DCI.
[0141] For a transmission occasion of a single CSI report, a PUCCH resource is provided by pucch-CSI-ResourceList. For a transmission occasion of multiple CSI reports, corresponding PUCCH resources can be provided by multi-CSI-PUCCH-ResourceList.
[0142] Thus, in 5G NR, different UCI types would determine their own PUCCH resource for transmission. In some cases, in a slot, there would be one or two PUCCHs carrying HARQ-ACK, K PUCCHs carrying SR, and multiple PUCCHs carrying CSI. When a PUCCH transmission is overlapped with another PUCCH transmission, or overlapped with PUSCH transmission, UCI (s) in PUCCH resource would be multiplexed in a same PUCCH resource or in PUSCH resource.
[0143] There are many complex rules for UCI multiplexing. The basic rule is first handling the PUCCH overlapping, and PUSCH overlapping, then handle the overlapping between PUCCH and PUSCH. For PUCCH’s overlapping, different UCI types in different PUCCH resources would be multiplexed in a new determined PUCCH resource if the timeline or the multiplexed rule is met. The new PUCCH resource is determined according to the total UCI bits in different PUCCH resources. If a PUCCH is overlapped with a PUSCH, then the UCI could be transmitted in the PUSCH resource with separate encoding with the UL-SCH.
[0144] In 5G NR, the UCI multiplexing method is very complex. There is a need to simplify the UCI transmission for 6G, which is beneficial for UE power saving. Embodiments of the present disclosure provide solutions for UCI transmission in two aspects.
[0145] In a first aspect of the present disclosure, for transmitting at least one UCI, at least one PUSCH resource may be determined, and the UE may transmit UCI (s) in the determined PUSCH resource (s) . In this way, UCI transmission in PUSCH may be supported.
[0146] In a second aspect of the present disclosure, for transmitting UCIs of multiple UCI types, the UE may determine a time unit and determine a PUCCH resource in the time unit based on the total UCI bit number of the UCIs to be transmitted. The UE may transmit the UCIs in the determined PUCCH resource. In this way, the UCI multiplexing in PUCCH may be simplified.
[0147] Hereinafter, embodiments of the present disclosure will be separately illustrated from the two aspects. In some implementations, all UCIs may be transmitted in PUSCH resources. In some alternative implementations, all UCIs may be transmitted in PUCCH resources with a simplified UCI multiplexing manner. In some alternative implementations, some specific types of UCIs may be transmitted in PUSCH resources, while other types of UCIs may be transmitted in PUCCH resources with simplified UCI multiplexing manner. In some alternative implementations, UCIs with a bit number larger than (or equal to) a threshold may be transmitted in PUSCH resources, while UCIs with a bit number smaller than (or equal to) a threshold may be transmitted in PUCCH resources with simplified UCI multiplexing manner.
[0148] Reference is now made to FIG. 2, which illustrates an example signaling chart of a communication process 200 that supports UCI transmission in PUSCH resource in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1A. The process 200 may involve the UE 104 and the base station 102. It is to be understood that the steps and the order of the steps in FIG. 2 are merely for illustration, and not for limitation. It is to be understood that process 200 may further include additional blocks not shown and / or omit some shown blocks, and the scope of the present disclosure is not limited in this regard.
[0149] As shown in FIG. 2, the UE 104 determines (202) at least one PUSCH resource for transmitting at least one UCI 208. The UE 104 transmits (206) the at least one UCI 208 to the base station 102 in the at least one PUSCH resource. Similarly, the base station 102 determines (204) the at least one PUSCH resource for receiving the at least one UCI 208. The base station 102 receives (210) the at least one UCI 208 from the UE 104 in the at least one PUSCH resource. In this way, UCI transmission in PUSCH may be supported. Compared with the UCI transmission in PUCCH in 5G NR involving overlapping of PUCCH and PUSCH and complex UCI multiplexing, the determination of PUSCH resource for UCI transmission is simplified, thus reducing the UE power consumption and UE processing resource.
[0150] In some embodiments, the at least one UCI 208 may include at least one HARQ-ACK. Alternatively or additionally, the at least one UCI 208 may include at least one SR. Alternatively or additionally, the at least one UCI 208 may include at least one CSI report. In other words, the UE may determine one or multiple PUSCH resources to transmit a UCI, which could be HARQ-ACK, or SR, or CSI, or any combination of them. In some implementations, the UCI transmission in PUSCH may be applied for all UCI types. In some alternative implementations, the UCI transmission in PUSCH may be applied for one specific UCI type (e.g., CSI, including periodic CSI and semi-static CIS) , or some specific UCI types.
[0151] In some embodiments, the UCI transmission in PUSCH may be applied irrelevant to the UCI bit number. In some alternative embodiments, a total bit number of the least one UCI is equal to or larger than a threshold. In other words, the UCI transmission in PUSCH may be applied for UCI transmissions with a large bit number. For example, the solution of UCI transmission in PUSCH may be applied only when the UCI bit number is larger than a threshold (e.g., a predefined bit number threshold (e.g., 2 bits) or a configured value, ) . If the UCI bit number is smaller than a threshold (e.g., the UCI bits comprise 1 bit or 2 bits, or are less than a configured value) , then a PUCCH resource would be used for UCI transmission.
[0152] In some embodiments, the at least one UCI 208 may be UCIs to be transmitted in a same time unit. The at least one PUSCH resource may be determined from a set of PUSCH resources in the time unit. In other words, for each UCI to be transmitted, the UE may determine a respective time unit for transmitting the UCI. For UCIs to be transmitted in a same time unit, the UE may determine one or multiple PUSCH resources in the time unit to transmit the UCIs.
[0153] In some implementations, the UE 104 may receive, from the base station 102, an indication associated with a PDSCH transmission. A respective time unit for transmitting a HARQ-ACK corresponding to the PDSCH transmission may be determined based on the indication associated with the PDSCH transmission. In other words, for each PDSCH transmission, there may be an indication for determining the time unit (e.g., a slot) to be used for the HARQ-ACK transmission corresponding to the PDSCH transmission.
[0154] In some implementations, the UE 104 may receive a first network configuration from the base station 102. The first network configuration may be indicative of a periodicity and an offset associated with time units for SR transmission. A respective time unit for transmitting a SR may be determined based on the first network configuration. In other words, a network configuration indicating the transmission periodicity and an offset may be used to determine the transmission time unit of SR.
[0155] In some implementations, the UE 104 may receive, from the base station 102, a second network configuration. The second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission. A respective time unit for transmitting a CSI report of a first type may be determined based on the second network configuration. For example, a network configuration indicating the transmission periodicity and an offset may be used to determine the transmission time unit of periodic CSI or for semi-static CSI.
[0156] In some implementations, the UE 104 may receive, from the base station 102, a DCI associated with a CSI report of a second type. A respective time unit for transmitting the CSI report of a second type may be determined based on an indication in the DCI. For example, there may be an indication in the activating DCI of A-CSI or semi-static CSI for determining the transmission time unit of A-CSI or semi-static CSI.
[0157] FIGS. 3A-3E illustrate example diagrams of determination of time units for UCI transmission in accordance with some example embodiments of the present disclosure. In the example shown in FIG. 3A, for a PDSCH transmission in a time unit n, a time unit n+3 may be determined for transmitting the HARQ-ACK feedback based on an indication of K1=3 in a DCI associated with the PDSCH transmission.
[0158] In the example shown in FIG. 3B, periodic time units n, n+3, n+6, …, may be determined for transmitting SR based on a SR configuration indicating the transmission periodicity and an offset.
[0159] In the example shown in FIG. 3C, periodic time units n, n+3, n+6, …, may be determined for transmitting CSI based on a CSI configuration indicating the transmission periodicity and an offset.
[0160] In the example shown in FIG. 3D, a DCI may be received in a time unit n to trigger a SR transmission, and a time unit n+3 may be determined for transmitting the SR based on an indication in the triggering DCI.
[0161] In the example shown in FIG. 3E, a DCI may be received in a time unit n to trigger a CSI transmission, and a time unit n+3 may be determined for transmitting the CSI based on an indication in the triggering DCI.
[0162] In some embodiments, the UCIs to be transmitted in a same time unit are all UCIs associated with all UCI types to be transmitted in the time unit. In other words, if multiple UCIs of multiple UCI types may be determined to be transmitted in a same time unit, all the UCIs are connected and PUSCH resource (s) may be determined for transmitting all the UCIs. In some implementations, the UCIs of multiple UCI types may be connected in a predefined order, e.g., in the order of HARQ-ACK, CSI, SR. The UE 104 may determine the at least one PUSCH resource for transmitting all UCIs associated with all UCI types to be transmitted in the same time unit.
[0163] In some alternative embodiments, the UCIs to be transmitted in a same time unit are all UCIs associated with at least one of the following: same UCI type, same UCI priority, or same UCI group, or same UCI time behavior. The UE 104 may separately determine PUSCH resources for transmitting UCIs to be transmitted in the same time unit and associated with different UCI types, different UCI priorities, or different UCI groups or different UCI time behaviors. In other words, if there are UCIs of different types or different priorities or different group indexes or different time behaviors (e.g., periodic, semi-static, aperiodic) in a same time unit, the UE may separately determine different PUSCHs used to transmit the UCIs. The UE 104 may determine the at least one PUSCH resource for transmitting all UCIs associated with a same UCI type / priority / group / time behavior to be transmitted in the same time unit.
[0164] In some embodiments, the at least one PUSCH resource for transmitting the at least one UCI 208 may be determined from a set of PUSCH resources in the time unit. The set of PUSCH resources may be configured by the base station 102. Some example implementations for determining the at least one PUSCH resource are illustrated as below. Other implementations are also possible. It should be understood that the following example implementations may be implemented independently or in any combination thereof.
[0165] In a first example implementation, all of the set of PUSCH resources in the time unit may be determined for transmitting the at least one UCI 208. In other words, all PUSCH resources in the time unit including the configured PUSCH resources or dynamic scheduling PUSCH resources could carry the UCI bits.
[0166] In a second example implementation, a PUSCH resource with a predefined index among the set of PUSCH resources may be determined for transmitting the at least one UCI 208. The set of PUSCH resources are indexed in a predefined order. For example, only the first or last or predefined PUSCH resource is used for UCI transmission. PUSCH resources may be indexed in increasing order of frequency domain stating RB indexes and / or in increasing order of time domain staring symbol indexes. In a third example implementation, a PUSCH resource with a highest priority among the set of PUSCH resources may be determined for transmitting the at least one UCI 208.
[0167] In a fourth example implementation, a dynamic scheduling PUSCH resource may have a higher priority to be determined for transmitting the at least one UCI 208 than a periodic PUSCH resource. In other words, if there are both dynamic scheduling PUSCH resources and configured grant PUSCH resources in the time unit, a dynamic scheduling PUSCH resource could be chosen firstly. In a fifth example implementation, a dynamic scheduling PUSCH resource may have a lower priority to be determined for transmitting the at least one UCI 208 than a periodic PUSCH resource. In other words, if there are both dynamic scheduling PUSCH resources and configured grant PUSCH resources in the time unit, a configured grant PUSCH resource could be chosen firstly.
[0168] In a sixth example implementation, a periodic PUSCH resource of type 1 may have a higher priority to be determined for transmitting the at least one UCI 208 than a periodic PUSCH resource of type 2. In other words, if there are both CG type 1 PUSCH resources and CG type 2 PUSCH resources in the time unit, a CG type 1 PUSCH resource could be chosen firstly. In a seventh example implementation, a periodic PUSCH resource of type 1 may have a lower priority to be determined for transmitting the at least one UCI 208 than a periodic PUSCH resource of type 2. In other words, if there are both CG type 1 PUSCH resources and CG type 2 PUSCH resources in the time unit, a CG type 2 PUSCH resource could be chosen firstly. In an eighth example implementation, a periodic PUSCH resource associated with a lowest may be determined for transmitting the at least one UCI 208. In other words, if there are PUSCH resources associated with multiple CG configurations in the time unit, a PUSCH resource associated with a CG configuration with a lowest index could be chosen firstly. In a ninth example implementation, a periodic PUSCH resource associated with a highest index may be determined for transmitting the at least one UCI 208. In other words, if there are PUSCH resources associated with multiple CG configurations in the time unit, a PUSCH resource associated with a CG configuration with a largest index could be chosen firstly.
[0169] In a tenth example implementation, a PUSCH resource carrying at least one aperiodic CSI report may have a higher priority to be determined for transmitting the at least one UCI 208 than a PUSCH resource carrying no aperiodic CSI report. In other words, the transmission resource for an aperiodic CSI report may be determined in a different manner, and if there is a PUSCH resource determined for transmitting an aperiodic CSI report, such PUSCH resource could be chosen firstly for transmitting the at least one UCI 208.
[0170] In an eleventh example implementation, a PUSCH resource meeting a time line may be determined for transmitting the at least one UCI 208. In other words, only PUSCH resources meeting the time line can be chosen. The time line may be determined based on at least one processing time for the at least one UCI 208. In other words, for multiple UCI types in the time unit, the time line may be determined based on the largest processing time among processing times of all the multiplexed UCI types. Thus, the determined PUCCH transmission time should be latter than or equal to the determined time line of the all UCI types. Alternatively the time line may be determined based on a combined processing time for the at least one UCI 208. Different processing times may be predefined for different UCI combinations.
[0171] In a twelfth example implementation, a PUSCH resource meeting a size requirement associated with a UCI bit number of the at least one UCI 208 may be determined for transmitting the at least one UCI 208. In other words, the PUSCH resource may be determined based on the UCI bits and the size of resources in the PUSCH. The UCI bit number after modulation and encoding should be smaller than or equal to the number of available resource elements (Res) reserved for UCI in the PUSCH resource.
[0172] In a thirteenth example implementation, a PUSCH resource indicated to be available for UCI transmission may be determined for transmitting the at least one UCI 208. In other words, each PUSCH resource could be indicated to be used for UCI transmission or not. A PUSCH resource indicated for the corresponding UCI transmission could be chosen. In some examples, UE does not expect there are multiple PUSCH resources in a same time unit indicated to transmit UCI. In some alternative examples, if there are multiple PUSCH resources in a same time unit indicated to transmit UCI, the UE may determine the PUSCH resource for transmitting UCIs based on the rules in other example implementations. In a fourteenth example implementation, a PUSCH resource indicated to be associated with a UCI type may be determined for transmitting the at least one UCI 208 of the UCI type. In other words, each PUSCH resource that can be used for UCI transmission could be indicated that it is for which UCI type (combination) . A PUSCH resource indicated for the corresponding UCI type (combination) could be chosen. In some examples, UE does not expect there are multiple PUSCH resources in a same time unit indicated for the same UCI type (combination) . In some alternative examples, if there are multiple PUSCH resources in a same time unit indicated for the same UCI type (combination) , the UE may determine the PUSCH resource for transmitting UCIs based on the rules in other example implementations.
[0173] In a fifteenth example implementation, a PUSCH resource determined to be used for transmitting the at least one UCI 208 may be indicated by a DCI. The DCI is indicative of a PUSCH resource among a set of PUSCH resources in the time unit. In some examples, the DCI may be a last DCI among one or more DCIs associated with at least one PDSCH transmission corresponding to at least one HARQ-ACK comprised in the at least one UCI 208. In other words, there may be an indication in the DCI scheduling the PDSCH transmission, to indicate which PUSCH resource to choose. For example, for at most 32 PUSCH resources in one time unit, 5bits in the DL DCI scheduling the PDSCH transmission may be used to indicate which PUSCH resource would be chosen to transmit HARQ-ACK. If the UCIs to be transmitted in one time unit include multiple HARQ-ACKs for multiple PDSCH transmissions, the PUSCH resource for transmitting the UCIs may be determined according to the indication in the last DCI scheduling a corresponding PDSCH transmission. In some alternative examples, the DCI may be a last DCI among at least one DCI associated with the at least one UCI 208. In other words, there may be an indication in the DCI associated with each UCI (e.g., the DCI scheduling the PDSCH transmission for a HARQ-ACK, the DCI triggering a SR transmission, or the DCI triggering a CSI report) , to indicate which PUSCH resource to choose. For example, for at most 32 PUSCH resources in one time unit, 5bits in the DL DCI associated with the UCI may be used to indicate which PUSCH resource would be chosen to transmit UCI. If the UCIs to be transmitted in one time unit include multiple HARQ-ACKs for multiple PDSCH transmissions, the PUSCH resource for transmitting the UCIs may be determined according to the indication in the last DCI scheduling a corresponding PDSCH transmission.
[0174] In some embodiments, if the time unit includes no PUSCH resource available for transmitting the at least one UCI 208, the UE 104 may not transmit at least one SR comprised in the at least one UCI 208. In other words, if there is no PUSCH resource for UCI transmission in the time unit, SR could be dropped.
[0175] In some embodiments, if the time unit includes no PUSCH resource available for transmitting the at least one UCI 208, the UE 104 may do not transmit at least one CSI report comprised in the at least one UCI 208. In other words, if there is no PUSCH resource for UCI transmission in the time unit, CSI could be dropped.
[0176] In some embodiments, the at least one UCI 208 may include at least one HARQ-ACK. If the time unit includes no PUSCH resource available for transmitting the at least one UCI 208, the UE 104 may defer transmission of the at least one UCI 208 or the at least one HARQ-ACK comprised in the at least one UCI 208 to a new PUSCH resource. In other words, if there is no PUSCH resource for UCI transmission in the time unit, HARQ-ACK will be hold and wait for retransmission. CSI and / or SR determined to be transmitted in the same time unit with HARQ-ACK may be dropped or may be hold and wait for retransmission together with HARQ-ACK.
[0177] In some implementations, the UE 104 may receive, from the base station 102, a DCI scheduling the new PUSCH resource. The time unit for transmitting the at least one UCI 208 is within a time window before the DCI or before the new PUSCH resource. The UE 104 may retransmit, to the base station 102, the at least one UCI 208 or the at least one HARQ-ACK comprised in the at least one UCI 208 in the new PUSCH resource. In some examples, the DCI may include an indication that the new PUSCH resource is used for UCI transmission or UCI retransmission. Alternatively or additionally, the DCI may include an indication of UCI types for which the new PUSCH resource is used for UCI transmission. In other words, a dynamically scheduled PUSCH resource could be indicated with UCI retransmission or not by the scheduling DCI of the PUSCH resource, and if indicated, the HARQ-ACK (and optionally CSI and / or SR) in a time window could be retransmitted in the PUSCH resource. The time window may include N time units before the scheduling DCI or PUSCH resource. In other words, the UCI may be stored in N time units for retransmission if the initial UCI transmission is cancelled.
[0178] FIG. 4A illustrates an example diagram of determination of PUSCH resources for HARQ-ACK retransmission in accordance with some example embodiments of the present disclosure. As shown in FIG. 4A, if a HARQ-ACK was determined to be transmitted in time unit n+3, but there is no available PUSCH resource in the time unit n+3, the UE may store the HARQ-ACK for retransmission. If the UE receives a DCI scheduling PUSCH#1 in time unit n+K for UCI retransmission, the UE may retransmit the HARQ-ACK in the PUSCH#1 in time unit n+K. The original time unit n+3 determined for the HARQ-ACK is within a time window (e.g., N time units) before the DCI or the PUSCH#1. If there are other HARQ-ACKs without available PUSCH resources in the time window (e.g., from time unit n+K-N to the unit n+K) , these HARQ-ACKs may also be retransmitted in the PUSCH#1 in time unit n+K.
[0179] In some alternative implementations, the new PUSCH resource may be in a latest time unit with PUSCH resources available for UCI transmission within a time window after the time unit. The UE 104 may retransmit, to the base station 102, the at least one UCI 208 or the at least one HARQ-ACK comprised in the at least one UCI 208 in the new PUSCH resource. In other words, if a new time unit among next N time units could be checked one by one until a valid PUSCH is chosen.
[0180] FIG. 4B illustrates another example diagram of determination of PUSCH resources for HARQ-ACK retransmission in accordance with some example embodiments of the present disclosure. As shown in FIG. 4B, if a HARQ-ACK was determined to be transmitted in time unit n+3, but there is no available PUSCH resource in the time unit n+3, the UE may store the HARQ-ACK for retransmission. The UE may check the subsequent time units one by one to search for a valid PUSCH resource for UCI transmission. The time unit n+K is the earliest time unit with valid PUSCH resources for UCI transmission. Then, the UE may retransmit the HARQ-ACK in a PUSCH resource in time unit n+K.
[0181] Alternatively or additionally, if the UE 104 determines absence of a new PUSCH resource, the UE may do not transmit the at least one UCI 208. In other words, if no valid PUSCH resources are found in the next N time units, retransmission of the UCI can be cancelled. For example, if no valid PUSCH resources are found in the next N time units, transmission of the HARQ-ACK can be cancelled.
[0182] In some alternative implementations, the at least one UCI 208 comprise at least one HARQ-ACK. If the time unit includes no PUSCH resource available for transmitting the at least one UCI 208, the UE 104 may transmit, to the base station 102, the at least one UCI 208 or the at least one HARQ-ACK comprised in the at least one UCI 208 in a configured PUSCH resource. In other words, if there is no PUSCH resource for UCI transmission in the time unit, HARQ-ACK will be transmitted using a preconfigured PUSCH resource. CSI and / or SR determined to be transmitted in the same time unit with HARQ-ACK may be dropped or may be transmitted in the preconfigured PUSCH resource together with HARQ-ACK.
[0183] In this way, a scheme for UCI transmission in PUSCH resource may be designed. The UE may determine a respective time unit for transmitting each UCI. For UCIs to be transmitted in a same time unit, the UE may determine one or multiple PUSCH resources in the time unit to transmit the UCIs.
[0184] In some embodiments, the at least one PUSCH resource for transmitting the at least one UCI 208 may be determined based on an indication associated with the at least one UCI 208. In other words, the UE may determine the related PUSCH resource for a UCI according to a received indication from the base station.
[0185] In some implementations, the at least one UCI 208 may include at least one SR associated with at least one SR configuration. The UE 104 may receive, from the base station 102, a periodic PUSCH resource configuration associated with at least one SR configuration. A respective PUSCH resource for transmitting the at least one SR may be determined based on the periodic PUSCH resource configuration. In other words, for SR, a CG type1 / 2 PUSCH resource configuration index could be configured to transmit SR. That is, the PUSCH used for the SR transition may be configured with a periodicity, and the transmission parameters of the periodic PUSCH resource may also be configured. SR is transmitted in the periodic PUSCH resource.
[0186] In some implementations, the at least one UCI 208 may include at least one CSI report associated with at least one CSI configuration. The UE 104 may receive, from the base station 102, a periodic PUSCH resource configuration associated with the at least one CSI configuration. A respective PUSCH resource for transmitting the at least one CSI report may be determined based on the periodic PUSCH resource configuration. In some implementations, for periodic CSI report and semi-static CSI report, a CG type1 / 2 PUSCH resource configuration index could be configured to transmit periodic CSI or semi static CSI. That is, the PUSCH used for the CSI transition may be configured with a periodicity, and the transmission parameters of the periodic PUSCH resource may also be configured. Periodic CSI or semi static CSI may be transmitted in the periodic PUSCH resource.
[0187] In some implementations, the at least one UCI 208 may include at least one HARQ-ACK. The at least one HARQ-ACK corresponds to at least one PDSCH transmission of at least one periodic PDSCH configuration. The UE 104 may receive, from the base station 102, a periodic PUSCH resource configuration associated with the at least one periodic PDSCH configuration. A respective PUSCH resource for transmitting the at least one HARQ-ACK may be determined based on the periodic PUSCH resource configuration. The periodic PUSCH resource configuration may be activated after a first number of time units from a first PDSCH transmission of the at least one periodic PDSCH configuration. In other words, for HARQ-ACK of a semi-persistent scheduling (SPS) PDSCH, the SPS PDSCH may be associated with a CG PUSCH configuration to transmit the HARQ-ACK. The CG PUSCH configuration may be activated and used to transmit the HARQ-ACK after N time units from the first SPS PUSCH.
[0188] In some implementations, the at least one UCI 208 may include a HARQ-ACK corresponding to a PDSCH transmission scheduled by a DCI. The DCI may include an indication of a respective PUSCH resource for transmitting the HARQ-ACK. In other words, for HARQ-ACK of a dynamic scheduling PDSCH transmission, the PUSCH resource and related parameters may also be indicated in the scheduling DCI of the PDSCH transmission. Thus, a single DCI may schedule a PDSCH transmission and a PUSCH resource for transmitting the HARQ-ACK.
[0189] In some alternative implementations, the UCI may include a HARQ-ACK corresponding to a PDSCH transmission scheduled by a DCI. The UE 104 may receive at least one periodic PUSCH resource configuration from the base station 102. The DCI may include an indication of one periodic PUSCH resource configuration among the at least one periodic PUSCH resource configuration. A respective PUSCH resource for transmitting the HARQ-ACK may be determined based on the one periodic PUSCH resource configuration. In other words, for HARQ-ACK of a dynamic scheduling PDSCH transmission, a CG type 1 or type 2 PUSCH configuration index could be indicated in the DCI scheduling the PDSCH transmission corresponding to the HARQ-ACK.
[0190] In some examples, the respective PUSCH resource for transmitting the HARQ-ACK may be in a respective time unit for transmitting the HARQ-ACK. In other words, the UE 104 may determine a respective time unit for HARQ-ACK transmission, and determine a CG PUSCH resource in the time unit to transmit the UCI. If there is no available PUSCH resource in the indicated time unit for HARQ-ACK transmission, the UE may hold the HARQ-ACK for re-transmission method mentioned above.
[0191] In some alternative examples, the respective PUSCH resource for transmitting the HARQ-ACK may be a latest PUSCH resource based on the periodic PUSCH resource configuration. In other words, the latest CG PUSCH resource associated with the indicated CG type 1 or type 2 PUSCH configuration index indicated in the DCI may be used to transmit the HARQ-ACK.
[0192] In this way, a scheme for UCI transmission in PUSCH resource based on a network indication may be designed.
[0193] In some embodiments, the UE 104 may receive an indication of a PUSCH resource from the base station 102.
[0194] In some implementations, the indication of the PUSCH resource may indicate a UCI type or a UCI type combination that can be transmitted in the PUSCH resource. If the at least one UCI 208 is associated with the indicated UCI type or the indicated UCI type combination, the UE 104 may transmit the at least one UCI 208 to the base station 102 in the PUSCH resource. In some examples, the UCI type may be HARQ-ACK, SR, or CSI, or A-CSI, or periodic CSI or semi static CSI. In some examples, the UCI type combination may include at least one of HARQ-ACK, SR, or CSI, or A-CSI, or periodic CSI or semi static CSI.
[0195] Alternatively or additionally, the indication of the PUSCH resource may indicate whether a UCI or any UCI can be transmitted in the PUSCH resource. If the indication of the PUSCH resource indicates that UCI can be transmitted in the PUSCH resource, the UE 104 may transmit the at least one UCI 208 to the base station 102 in the PUSCH resource.
[0196] Alternatively or additionally, the indication of the PUSCH resource may indicate a UCI priority or a UCI group index that can be transmitted in the PUSCH resource. If the at least one UCI 208 is associated with the indicated UCI priority or the indicated UCI group index, the UE 104 may transmit the at least one UCI 208 to the base station 102 in the PUSCH resource.
[0197] Additionally, the indication of the PUSCH resource may further indicate whether there is uplink shared channel (UL-SCH) in the PUSCH resource.
[0198] In some implementations, the at least one UCI 208 may include a HARQ-ACK, and the at least one UCI 208 transmitted in the PUSCH resource may include at least one HARQ-ACK corresponding to at least one PDSCH transmission in a time window before the PUSCH resource.
[0199] In some implementations, the indication of the PUSCH resource may be comprised in a DCI scheduling the PUSCH resource. For example, for PUSCH scheduled by a DCI, the DCI could indicate whether HARQ-ACK, or SR, or CSI, or A-CSI, or periodic CSI or semi-static CSI could be transmitted in the PUSCH. Alternatively, the PUSCH resource may be a configured PUSCH resource associated with an RRC configuration, and the indication of the PUSCH resource may be comprised in a PUSCH resource configuration associated with the PUSCH resource. For example, the RRC configuration for a PUSCH may indicate whether HARQ-ACK, or SR, or CSI, or A-CSI, or periodic CSI or semi-static CSI could be transmitted in the PUSCH.
[0200] In some implementations, the indication of the PUSCH resource may be comprised in the scheduling DCI, and a field of the indication of the PUSCH resource may be a HARQ process number (HPN) field, or a new data indicator (NDI) field, or a redundancy version (RV) field.
[0201] In some implementations, a set of candidate UCI type combinations may be predefined or preconfigured. The UCI type combination that can be transmitted in the PUSCH resource may be indicated by an index of a candidate UCI type combination among the set of candidate UCI type combinations.
[0202] In this way, the UE may determine the PUSCH resource for transmitting UCIs based on the corresponding indication carried in a DCI scheduling the PUSCH resource. For example, the DCI scheduling the PUSCH resource may indicate whether the PUSCH can carry UCI or not.
[0203] If the PUSCH resource in time unit n is indicated for UCI transmission, the UCI in time domain that can be transmitted in the PUSCH resource may be determined. For example, if the PUSCH resource in time unit n is indicated for HARQ-ACK, the PUSCH resource may be used to transmit HARQ-ACK for PDSCH transmission within a time window. The time window may include time unit n-j to time unit n-k. Alternatively, the time window may be determined according to the K1 set. If the PUSCH resource in time unit n is indicated for SR transmission, then SR in time unit n is transmitted in the PUSCH resource. If the PUSCH resource in time unit n is indicated for CSI transmission, then CSI in time unit n is transmitted the PUSCH resource. Alternatively, if the PUSCH resource in time unit n is indicated for UCI transmission, the PUSCH resource may be used for all the UCI should be transmitted in the time unit. In other words, the UE 104 may determine a time unit for transmitting UCIs, and the PUSCH resource in the time unit indicated for UCI transmission may be used to transmit the UCIs.
[0204] The DCI scheduling the PUSCH resource may indicate whether there can be UL-SCH, and / or whether there can be UCI, and / or indicate the UCI combination / UCI type / UCI group index / or configuration index that may be transmitted in the PUSCH resource. The UCI combination may include HARQ-ACK or A-CSI or SR or their combination, the candidate combinations may be configured or predefined. For a PDSCH scheduling, there may be a group index to indicate the HARQ-ACK group index. For SR and semi-static CSI or periodic CSI, there may be a configuration in RRC to configure the group index. For A-CSI, there may be a group index in activation DCI.
[0205] For dynamic scheduling PUSCH, there may be an indication in DCI to indicate which content can be transmitted in the PUSCH. In some examples, there may be separate DCI fields for such indication, one indicating whether there can be UL-SCH or not, and the other one indicates the UCI combination / UCI type / UCI group index that can be transmitted in the PUSCH. If the PUSCH resource is indicated only for UCI transmission, the HPN or NDI or RV fields in DCI may be used for indicating the UCI type. FIGS. 5A-5B illustrate example diagrams of DCI fields associated with PUSCH in accordance with some example embodiments of the present disclosure. In the example shown in FIG. 5A, two fields are included in the scheduling DCI of the PUSCH resource, one indicating whether there can be UL-SCH or not, and the other one indicates the UCI type that can be transmitted in the PUSCH. In the example shown in FIG. 5B, two fields are included in the scheduling DCI of the PUSCH resource, one indicating whether there can be UL-SCH or not, the other one indicating whether there can be UCI.
[0206] In some alternative examples, there may be one DCI field for such indication, different values of the bit field may be used to indicate different combinations of UCI and UL-SCH. FIGS. 5C-5D illustrate example diagrams of DCI fields associated with PUSCH in accordance with some example embodiments of the present disclosure. In the example shown in FIG. 5C, one field is included in the scheduling DCI of the PUSCH resource, indicating UL-SCH only, or UCI only or a combination of UL-SCH and UCI. In the example shown in FIG. 5D, one field is included in the scheduling DCI of the PUSCH resource, indicating different combinations of UL-SCH and UCI types. The combinations of UL-SCH and UCI types may be predefined or preconfigured.
[0207] For CG PUSCH type 1, or a configured PUSCH resource with a priority for UCI transmission, there may be an RRC parameter to indicate whether there can be UL-SCH, and / or whether there can be UCI, and / or indicates UCI combination / UCI type / UCI group index / or configuration index in the PUSCH. For CG PUSCH type 2, the indication associated with the PUSCH may be indicated in activation DCI or in RRC parameter.
[0208] In some embodiments, the at least one UCI 208 may be associated with multiple UCI types, and the UE may jointly encode bits for the at least one UCI 208 on the at least one PUSCH resource. In other words, all the UCI bits for different types of UCIs on the determined PUSCH resource may be encoded jointly. Only one beta offset is configured for the UCI bits to determine the encoder bits of the UCI. In this way, the UE processing complexity for UCI transmission may be reduced.
[0209] FIG. 6 illustrates an example signaling chart of a communication process 600 that supports UCI transmission in PUCCH resource in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the process 600 will be described with reference to FIG. 1A. The process 600 may involve the UE 104 and the base station 102. It is to be understood that the steps and the order of the steps in FIG. 6 are merely for illustration, and not for limitation. It is to be understood that process 600 may further include additional blocks not shown and / or omit some shown blocks, and the scope of the present disclosure is not limited in this regard.
[0210] As shown in FIG. 6, the UE 104 determines (602) a time unit for transmitting at least one UCI 612. The at least one UCI 612 may be associated with at least two UCI types among a HARQ-ACK type, a SR type or a CSI report type. The UE 104 determines (606) a PUCCH resource in the time unit based on a total bit number of the at least one UCI 612, and transmits (610) the at least one UCI 612 to the base station 102 over the PUCCH resource. Similarly, the base station 102 determines (204) the time unit for receiving the at least one UCI 612. The base station 102 determines (208) the PUCCH resource in the time unit based on the total bit number of the at least one UCI 612, and receives (614) the at least one UCI 612 from the UE 102 over the PUCCH resource.
[0211] In other words, for each UCI to be transmitted, the UE may determine a respective time unit for transmitting the UCI. For UCIs of multiple UCI types to be transmitted in a same time unit, the UE may determine one PUCCH resource in the time unit to transmit all UCI bits of the multiple UCI types. In some implementations, for UCIs of different priorities or different group indexes, the UE may separately determine different PUCCH resources used to transmit the UCIs. Instead of determining PUCCH resources separately for HARQ-ACK CSI, SR and UCI multiplexing in case of resource overlapping, the UCI multiplexing is performed at the beginning. The PUCCH resource determination for transmitting UCI may thus be simplified.
[0212] In some embodiments, the at least one UCI 612 are UCIs to be transmitted in a same time unit. The at least one PUCCH resource may be determined from a set of PUCCH resources in the time unit. For example, the UE may determine the PUCCH resource based on the number of UCI bits. The UCI bits may be generated by connecting all the bits of the multiple types of UCI in the time unit.
[0213] In some embodiments, the PUCCH resource may be indicated in a last DCI among at least one DCI associated with the at least one UCI 612. In other words, the UE may determine the PUCCH resource according to a last DCI for all UCI types, including HARQ, SR, CSI. The DCI for the UCI may be ordered with an increasing index of frequency domain, time domain, CORESET index, and cell index.
[0214] In some implementations, the UE 104 may receive, from the base station 102, an indication associated with a PDSCH transmission. A respective time unit for transmitting a HARQ-ACK corresponding to the PDSCH transmission may be determined based on the indication associated with the PDSCH transmission. In other words, for each PDSCH transmission, there may be an indication for determining the time unit (e.g., a slot) to be used for the HARQ-ACK transmission corresponding to the PDSCH transmission.
[0215] In some implementations, the UE 104 may receive a first network configuration from the base station 102. The first network configuration may be indicative of a periodicity and an offset associated with time units for SR transmission. A respective time unit for transmitting a SR may be determined based on the first network configuration. In other words, a network configuration indicating the transmission periodicity and an offset may be used to determine the transmission time unit of SR.
[0216] In some implementations, the UE 104 may receive, from the base station 102, a second network configuration. The second network configuration is indicative of a periodicity and an offset associated with time units for CSI transmission. A respective time unit for transmitting a CSI report of a first type may be determined based on the second network configuration. For example, a network configuration indicating the transmission periodicity and an offset may be used to determine the transmission time unit of periodic CSI or for semi-static CSI.
[0217] In some implementations, the UE 104 may receive, from the base station 102, a DCI associated with a CSI report of a second type. A respective time unit for transmitting the CSI report of a second type may be determined based on an indication in the DCI. For example, there may be an indication in the activating DCI of A-CSI or semi-static CSI for determining the transmission time unit of A-CSI or semi-static CSI.
[0218] In some embodiments, the PUCCH resource meets a time line associated with the at least one UCI 612. In some examples, the time line may be determined based on at least one processing time for the at least one UCI 612. In other words, for multiple UCI types in the time unit, the time line may be determined based on the largest processing time among all the multiplexed UCI types. Alternatively, the time line may be determined based on a combined processing time for the at least one UCI 612. In other words, for multiple UCI types in the time unit, different time lines may be predefined or configured for different UCI combinations. In this way, the determined PUCCH transmission time may be latter than or equal to the determined time line of the all the UCI types in the PUCCH.
[0219] FIG. 7 illustrates an example of a device 700 that supports UCI transmission in accordance with aspects of the present disclosure. The device 700 may be an example of a network entity 102 or a UE 104 as described herein. The device 700 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 700 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 702, a memory 704, a transceiver 706, and, optionally, an I / O controller 708. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0220] The processor 702, the memory 704, the transceiver 706, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0221] In some implementations, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 702 and the memory 704 coupled with the processor 702 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 702, instructions stored in the memory 704) .
[0222] For example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support a means for determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; and a means for transmitting, to a network entity, the at least one UCI in the at least one PUSCH resource.
[0223] In another example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support a means for determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type; a means for determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and a means for transmitting, to a network entity, the at least one UCI in the PUCCH resource.
[0224] In another example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support a means for determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; and a means for receiving, from a user equipment, the at least one UCI in the at least one PUSCH resource.
[0225] In another example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support a means for determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type; a means for determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and a means for receiving, from a user equipment, the at least one UCI in the PUCCH resource.
[0226] The processor 702 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 702 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 702. The processor 702 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 704) to cause the device 700 to perform various functions of the present disclosure such that the device 700 may perform any process of the disclosure as discussed with reference to FIGS. 2 to 6.
[0227] The memory 704 may include random access memory (RAM) and read-only memory (ROM) . The memory 704 may store computer-readable, computer-executable code including instructions that, when executed by the processor 702 cause the device 700 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 702 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 704 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0228] The I / O controller 708 may manage input and output signals for the device 700. The I / O controller 708 may also manage peripherals not integrated into the device M02. In some implementations, the I / O controller 708 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 708 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 708 may be implemented as part of a processor, such as the processor 706. In some implementations, a user may interact with the device 700 via the I / O controller 708 or via hardware components controlled by the I / O controller 708.
[0229] In some implementations, the device 700 may include a single antenna 710. However, in some other implementations, the device 700 may have more than one antenna 710 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 706 may communicate bi-directionally, via the one or more antennas 710, wired, or wireless links as described herein. For example, the transceiver 706 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 706 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 710 for transmission, and to demodulate packets received from the one or more antennas 710. The transceiver 706 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0230] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 710 for transmitting the amplified signal into the air or wireless medium.
[0231] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 710 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0232] FIG. 8 illustrates an example of a processor 800 that supports UCI transmission in accordance with aspects of the present disclosure. The processor 800 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 800 may be implemented in a device or its components as described herein. For example, the device may be an example of a network entity 102 or a UE 104 as described herein. The processor 800 may include a controller 802 configured to perform various operations in accordance with examples as described herein. The processor 800 may optionally include at least one memory 804, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 800 may optionally include one or more arithmetic-logic units (ALUs) 800. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0233] The processor 800 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 800) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0234] The controller 802 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 800 to cause the processor 800 to support various operations in accordance with examples as described herein. For example, the controller 802 may operate as a control unit of the processor 800, generating control signals that manage the operation of various components of the processor 800. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0235] The controller 802 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 804 and determine subsequent instruction (s) to be executed to cause the processor 800 to support various operations in accordance with examples as described herein. The controller 802 may be configured to track memory address of instructions associated with the memory 804. The controller 802 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 802 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 800 to cause the processor 800 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 802 may be configured to manage flow of data within the processor 800. The controller 802 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 800.
[0236] The memory 804 may include one or more caches (e.g., memory local to or included in the processor 800 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 804 may reside within or on a processor chipset (e.g., local to the processor 800) . In some other implementations, the memory 804 may reside external to the processor chipset (e.g., remote to the processor 800) .
[0237] The memory 804 may store computer-readable, computer-executable code including instructions that, when executed by the processor 800, cause the processor 800 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 802 and / or the processor 800 may be configured to execute computer-readable instructions stored in the memory 804 to cause the processor 800 to perform various functions. For example, the processor 800 and / or the controller 802 may be coupled with or to the memory 804, and the processor 800, the controller 802, and the memory 804 may be configured to perform various functions described herein. In some examples, the processor 800 may include multiple processors and the memory 804 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0238] The one or more ALUs 800 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 800 may reside within or on a processor chipset (e.g., the processor 800) . In some other implementations, the one or more ALUs 800 may reside external to the processor chipset (e.g., the processor 800) . One or more ALUs 800 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 800 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 800 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 800 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 800 to handle conditional operations, comparisons, and bitwise operations.
[0239] For example, the processor 800 may support wireless communication in accordance with examples as disclosed herein. The processor 800 may be configured to or operable to support a means for determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; and a means for transmitting, to a network entity, the at least one UCI in the at least one PUSCH resource.
[0240] In another example, the processor 800 may support wireless communication in accordance with examples as disclosed herein. The processor 800 may be configured to or operable to support a means for determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type; a means for determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and a means for transmitting, to a network entity, the at least one UCI in the PUCCH resource.
[0241] In another example, the processor 800 may support wireless communication in accordance with examples as disclosed herein. The processor 800 may be configured to or operable to support a means for determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; and a means for receiving, from a user equipment, the at least one UCI in the at least one PUSCH resource.
[0242] In another example, the processor 800 may support wireless communication in accordance with examples as disclosed herein. The processor 800 may be configured to or operable to support a means for determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type; a means for determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI; and a means for receiving, from a user equipment, the at least one UCI in the PUCCH resource.
[0243] FIG. 9 illustrates a flowchart of a method 900 that supports UCI transmission in accordance with aspects of the present disclosure. The operations of the method 900 may be implemented by a device or its components as described herein. For example, the operations of the method 900 may be performed by a UE 104 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0244] At 905, the method may include determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) . The operations of 905 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 905 may be performed by a device as described with reference to FIG. 1A.
[0245] At 910, the method may include transmitting, to a network entity, the at least one UCI in the at least one PUSCH resource. The operations of 910 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 910 may be performed by a device as described with reference to FIG. 1A.
[0246] FIG. 10 illustrates a flowchart of a method 1000 that supports UCI transmission in accordance with aspects of the present disclosure. The operations of the method 1000 may be implemented by a device or its components as described herein. For example, the operations of the method 1000 may be performed by a UE 104 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0247] At 1005, the method may include determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type. In some implementations, aspects of the operations of 1005 may be performed by a device as described with reference to FIG. 1A.
[0248] At 1010, the method may include determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI. The operations of 1010 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1010 may be performed by a device as described with reference to FIG. 1A.
[0249] At 1015, the method may include transmitting, to a network entity, the at least one UCI in the PUCCH resource. The operations of 1015 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1015 may be performed by a device as described with reference to FIG. 1A.
[0250] FIG. 11 illustrates a flowchart of a method 1100 that supports UCI transmission in accordance with aspects of the present disclosure. The operations of the method 1100 may be implemented by a device or its components as described herein. For example, the operations of the method 1100 may be performed by a network entity 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0251] At 1105, the method may include d determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) . The operations of 1105 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1105 may be performed by a device as described with reference to FIG. 1A.
[0252] At 1110, the method may include receiving, from a user equipment, the at least one UCI in the at least one PUSCH resource. The operations of 1110 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1110 may be performed by a device as described with reference to FIG. 1A.
[0253] FIG. 12 illustrates a flowchart of a method 1200 that supports UCI transmission in accordance with aspects of the present disclosure. The operations of the method 1200 may be implemented by a device or its components as described herein. For example, the operations of the method 1200 may be performed by a network entity 102 as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0254] At 1205, the method may include determining a time unit for transmitting at least one uplink control information (UCI) , wherein the at least one UCI is associated with at least two UCI types among a hybrid automatic repeat request acknowledgement (HARQ-ACK) type, a scheduling request (SR) type or a channel state information (CSI) report type. The operations of 1205 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1205 may be performed by a device as described with reference to FIG. 1A.
[0255] At 1210, the method may include determining a physical uplink control channel (PUCCH) resource in the time unit based on a total bit number of the at least one UCI. The operations of 1210 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1210 may be performed by a device as described with reference to FIG. 1A.
[0256] At 1215, the method may include receiving, from a user equipment, the at least one UCI in the PUCCH resource. The operations of 1215 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1215 may be performed by a device as described with reference to FIG. 1A.
[0257] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0258] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0259] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0260] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0261] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0262] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) , comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:determine at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; andtransmit, to a network entity via the transceiver, the at least one UCI in the at least one PUSCH resource.2.The UE of claim 1, wherein the at least one UCI comprises at least one of the following:at least one hybrid automatic repeat request acknowledgement (HARQ-ACK) ;at least one scheduling request (SR) ; orat least one channel state information (CSI) report.3.The UE of claim 1, wherein the at least one UCI are UCIs to be transmitted in a same time unit;wherein the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit.4.The UE of claim 3, wherein the UCIs to be transmitted in a same time unit are all UCIs associated with all UCI types to be transmitted in the time unit.5.The UE of claim 3, wherein the UCIs to be transmitted in a same time unit are all UCIs associated with at least one of the following: same UCI type, same UCI priority, or same UCI group, or same UCI time behavior.6.The UE of claim 3, wherein the at least one PUSCH resource is determined from a set of PUSCH resources in the time unit based on at least one of the following:all of the set of PUSCH resources in the time unit are determined for transmitting the at least one UCI;a PUSCH resource with a predefined index among the set of PUSCH resources is determined for transmitting the at least one UCI, wherein the set of PUSCH resources are indexed in a predefined order;a PUSCH resource with a highest priority among the set of PUSCH resources is determined for transmitting the at least one UCI;a dynamic scheduling PUSCH resource has a higher priority or a lower priority to be determined for transmitting the at least one UCI than a periodic PUSCH resource;a periodic PUSCH resource of type 1 has a higher priority or a lower priority to be determined for transmitting the at least one UCI than a periodic PUSCH resource of type 2;a periodic PUSCH resource associated with a lowest or a highest index is determined for transmitting the at least one UCI;a PUSCH resource carrying at least one aperiodic CSI report has a higher priority to be determined for transmitting the at least one UCI than a PUSCH resource carrying no aperiodic CSI report;a PUSCH resource meeting a timeline is determined for transmitting the at least one UCI, wherein the timeline is determined based on at least one processing time for the at least one UCI or a combined processing time for the at least one UCI;a PUSCH resource meeting a size requirement associated with a UCI bit number of the at least one UCI is determined for transmitting the at least one UCI;a PUSCH resource indicated to be available for UCI transmission is determined for transmitting the at least one UCI;a PUSCH resource indicated to be associated with a UCI type is determined for transmitting the at least one UCI of the UCI type; ora PUSCH resource determined to be used for transmitting the at least one UCI is indicated by a DCI, wherein the DCI is indicative of a PUSCH resource among a set of PUSCH resources in the time unit, wherein the DCI is one of the following:a last DCI among one or more DCIs associated with at least one PDSCH transmission corresponding to at least one HARQ-ACK comprised in the at least one UCI, ora last DCI among at least one DCI associated with the at least one UCI.7.The UE of claim 3, wherein the at least one UCI comprise at least one HARQ-ACK, and wherein the time unit comprises no PUSCH resource available for transmitting the at least one UCI, and the processor is further configured to:defer transmission of the at least one UCI or the at least one HARQ-ACK to a new PUSCH resource.8.The UE of claim 1, wherein the at least one PUSCH resource is determined based on an indication associated with the at least one UCI.9.The UE of claim 8, wherein the at least one UCI comprises at least one CSI report associated with at least one CSI configuration, wherein the processor is further configured to:receive, from the network entity via the transceiver, a periodic PUSCH resource configuration associated with the at least one CSI configuration,wherein a respective PUSCH resource for transmitting the at least one CSI report is determined based on the periodic PUSCH resource configuration.10.The UE of claim 1, wherein the processor is further configured to:receive, from the network entity via the transceiver, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI type or a UCI type combination that can be transmitted in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI type or the indicated UCI type combination; andtransmit, to the network entity via the transceiver, the at least one UCI in the PUSCH resource.11.The UE of claim 1, wherein the processor is further configured to:receive, from the network entity via the transceiver, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates whether UCI can be transmitted in the PUSCH resource; andtransmit, to the network entity via the transceiver, the at least one UCI in the PUSCH resource, wherein the indication of the PUSCH resource indicates that UCI can be transmitted in the PUSCH resource.12.The UE of claim 1, wherein the processor is further configured to:receive, from the network entity via the transceiver, an indication of a PUSCH resource, wherein the indication of the PUSCH resource indicates a UCI priority or a UCI group index that can be transmitted in the PUSCH resource; andtransmit, to the network entity via the transceiver, the at least one UCI in the PUSCH resource, wherein the at least one UCI is associated with the indicated UCI priority or the indicated UCI group index.13.The UE of any of claims 10 to 12, wherein the indication of the PUSCH resource further indicates whether there is uplink shared channel (UL-SCH) in the PUSCH resource.14.The UE of any of claims 10 to 12, wherein the at least one UCI comprises a HARQ-ACK, and the at least one UCI transmitted in the PUSCH resource comprises at least one HARQ-ACK corresponding to at least one PDSCH transmission in a time window before the PUSCH resource.15.The UE of any of claims 10 to 12, wherein the indication of the PUSCH resource is comprised in a DCI scheduling the PUSCH resource; orwherein the PUSCH resource is a configured resource, and the indication of the PUSCH resource is comprised in a PUSCH resource configuration associated with the PUSCH resource.16.The UE of claim 1, wherein the at least one UCI is associated with multiple UCI types, and the processor is further configured to:jointly encode bits for the at least one UCI on the at least one PUSCH resource.17.The UE of claim 1, wherein a total bit number of the least one UCI is equal to or larger than a threshold.18.A network entity, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:determine at least one physical uplink shared channel (PUSCH) resource for receiving at least one uplink control information (UCI) ; andreceive, from a user equipment (UE) via the transceiver, the at least one UCI in the at least one PUSCH resource.19.A processor for wireless communication, comprising:at least one memory; anda controller coupled with the at least one memory and configured to cause the controller to:determine at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; andtransmit, to a network entity, the at least one UCI in the at least one PUSCH resource.20.A method performed by a user equipment, the method comprising:determining at least one physical uplink shared channel (PUSCH) resource for transmitting at least one uplink control information (UCI) ; andtransmitting, to a network entity, the at least one UCI in the at least one PUSCH resource.