Methods of UE-initiated beam reporting using pre-configured resources in wireless communications
UE-initiated beam reporting in Mode B addresses overhead and latency issues in wireless communication systems by configuring UL channels and retransmission strategies, enhancing beam reporting accuracy and reducing network latency.
Patent Information
- Application Number
- PCT/CN2024/110828
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2026-02-12
AI Technical Summary
Existing wireless communication systems face challenges in managing beam reporting overhead and latency due to network-initiated beam management procedures, which can lead to suboptimal beam selection and degraded performance, while UE-initiated beam reporting (UEIBR) is not fully defined, particularly in Mode B, with unclear details on UL channel configuration and decoding failures.
The implementation of UE-initiated beam reporting (UEIBR) in Mode B, including configuration of first and second UL channels, acknowledgement mechanisms, and retransmission strategies to ensure timely and efficient beam reporting, such as using pre-configured resources and HARQ processes for successful decoding and retransmission.
UEIBR reduces reporting overhead and latency, enabling more timely and accurate beam reporting, improving communication efficiency and performance by leveraging UE's better knowledge of beam quality changes.
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Figure CN2024110828_12022026_PF_FP_ABST
Abstract
Description
METHODS OF UE-INITIATED BEAM REPORTING USING PRE-CONFIGURED RESOURCES IN WIRELESS COMMUNICATIONSTECHNICAL FIELD
[0001] This application relates generally to wireless communication systems, including systems with beam reporting.BACKGROUND
[0002] Wireless mobile communication technology uses various standards and protocols to transmit data between a base station and a wireless communication device. Wireless communication system standards and protocols can include, for example, 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) (e.g., 4G) , 3GPP New Radio (NR) (e.g., 5G) , and Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard for Wireless Local Area Networks (WLAN) (commonly known to industry groups as ) .
[0003] As contemplated by the 3GPP, different wireless communication systems'standards and protocols can use various radio access networks (RANs) for communicating between a base station of the RAN (which may also sometimes be referred to generally as a RAN node, a network node, or simply a node) and a wireless communication device known as a user equipment (UE) . 3GPP RANs can include, for example, Global System for Mobile communications (GSM) , Enhanced Data Rates for GSM Evolution (EDGE) RAN (GERAN) , Universal Terrestrial Radio Access Network (UTRAN) , Evolved Universal Terrestrial Radio Access Network (E-UTRAN) , and / or Next-Generation Radio Access Network (NG-RAN) .
[0004] Each RAN may use one or more radio access technologies (RATs) to perform communication between the base station and the UE. For example, the GERAN implements GSM and / or EDGE RAT, the UTRAN implements Universal Mobile Telecommunication System (UMTS) RAT or other 3GPP RAT, the E-UTRAN implements LTE RAT (sometimes simply referred to as LTE) , and NG-RAN implements NR RAT (sometimes referred to herein as 5G RAT, 5G NR RAT, or simply NR) . In certain deployments, the E-UTRAN may also implement NR RAT. In certain deployments, NG-RAN may also implement LTE RAT.
[0005] A base station used by a RAN may correspond to that RAN. One example of an E-UTRAN base station is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (also commonly denoted as evolved Node B, enhanced Node B, eNodeB, or eNB) . One example of an NG-RAN base station is a next generation Node B (also sometimes referred to as a g Node B or gNB) .
[0006] A RAN provides its communication services with external entities through its connection to a core network (CN) . For example, E-UTRAN may utilize an Evolved Packet Core (EPC) while NG-RAN may utilize a 5G Core Network (5GC) .
[0007] BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0008] To easily identify the discussion of any particular element or act, the most significant digit or digits in a reference number refer to the figure number in which that element is first introduced.
[0009] FIG. 1 illustrates an example of using Mode B for UE-initiated beam reporting that may be used in certain embodiments.
[0010] FIG. 2 illustrates a one-to-one mapping between a first UL channel and a second UL channel to form Mode B transmission occasions, according to certain embodiments.
[0011] FIG. 3 illustrates a monitoring window decrementing operation for receiving an acknowledge signal associated with a second UL channel, according to certain embodiments.
[0012] FIG. 4 illustrates UE-autonomous retransmission of the first UL channel and the second UL channel, according to certain embodiments.
[0013] FIG. 5 illustrates a UEIBR retransmission of the second UL channel based on a HARQ process ID assigned by RRC signaling, according to certain embodiments.
[0014] FIG. 6 illustrates a UEIBR retransmission of the second UL channel based on a HARQ process ID associated with the UEIBR (HPIUEIBR) , according to certain embodiments.
[0015] FIG. 7 illustrates a UEIBR retransmission of the second UL channel when no UL-SCH is transmitted with the UIEBR, according to certain embodiments.
[0016] FIG. 8 illustrates a UEIBR retransmission of the second UL channel using two HARQ process IDs when UL-SCH is transmitted with the UIEBR, according to certain embodiments.
[0017] FIG. 9 is a flowchart illustrating a method for a UE to transmit a UEIBR to a base station in a wireless network, according to certain embodiments.
[0018] FIG. 10 is a flowchart of a method for a base station to configure a UEIBR in a wireless network, according to certain embodiments.
[0019] FIG. 11 illustrates an example architecture of a wireless communication system, according to embodiments disclosed herein.
[0020] FIG. 12 illustrates a system for performing signaling between a wireless device and a network device, according to embodiments disclosed herein.DETAILED DESCRIPTION
[0021] Various embodiments are described with regard to a UE. However, reference to a UE is merely provided for illustrative purposes. The example embodiments may be utilized with any electronic component that may establish a connection to a network and is configured with the hardware, software, and / or firmware to exchange information and data with the network. Therefore, the UE as described herein is used to represent any appropriate electronic component.
[0022] UE-Initiated Beam Reporting
[0023] Certain wireless communication systems support beam management procedures that can improve the direction and strength of a beam for efficient communication between a base station and a UE. Certain beam management procedures may be supported for NR. These features may include, but are not limited to, beamforming, beam selection, beam tracking, and beam switching. In certain systems, the network (NW) can initiate a beam management procedure. Beam reporting allows the network to timely acquire the best beam for data and control transmissions. For example, the network can configure and / or activate frequent periodic or semi-persistent beam reporting or trigger frequent aperiodic beam reporting. In some examples, N best beams and corresponding layer 1 reference signal received powers (L1-RSRPs) can be used in beam reporting and management. These methods, however, can result in large overhead due to uplink (UL) reporting and control signaling. Conversely, without frequent beam reporting, the network may not receive timely beam reporting from the UE. This can result in degraded performance, as the network may not always acquire the best or preferred beam (s) for transmissions.
[0024] In certain wireless communication systems, the UE has better and more timely knowledge than the network of beam quality changes. Therefore, a UE-initiated beam reporting (UEIBR) procedure can lead to more timely beam reports. In addition, UEIBR can lead to reduced reporting overhead. In some NR systems, a UE-initiated and / or event-driven beam management can be facilitated to reduce overhead and / or latency. In these systems, unified transmission configuration indication (TCI) may be used with CSI measurement and reporting configuration frameworks that are already in place to target frequency range 2 (FR2) and single transmission reception point (sTRP) implementations that enable intra-cell and inter-cell beam management. To facilitate UE-initiated and / or event-driven beam management that supports fast beam switching, the UL signaling content (s) and procedure (s) have yet to be determined. Additionally, the UL signaling medium and / or container that is designed primarily for the purpose of beam reporting and considers the UE-initiated and / or event-driven nature of the UL transmission has yet to be determined.
[0025] For UEIBR, a beam report transmission procedure can support at least one of a Mode A or a Mode B. Mode A supports dynamically scheduling uplink control information (UCI) by a gNB. In Mode A, a UE can transmit in a first UL channel, such as a physical uplink control channel (PUCCH) (e.g., one-bit) , to request a resource for a second UL channel. The UE may transmit the first UL channel in response to an event trigger. The event trigger may include, for example, when a quality of at least one new beam, such as L1-RSRP, becomes a threshold amount better than the quality of a current beam. The UE can then detect the downlink control information (DCI) format that indicates a resource for a second UL channel to carry the beam report. The UE then transmits the beam report in the second UL channel.
[0026] Mode B supports UCI in preconfigured resources for a second UL channel. For example, FIG. 1 illustrates an example of using Mode B for UE-initiated beam reporting that may be used in certain embodiments. In Mode B, a UE can transmit a first PUCCH channel 102 (e.g., one-bit) notifying the network of a second UL channel 104 to carry a beam report. For the first PUCCH channel 102 (also referred to herein simply as the first UL channel) , a periodic PUCCH resource (with PUCCH format 0 / 1) can be configured by dedicated radio resource configuration (RRC) signaling. After transmitting the first PUCCH channel 102, the UE can transmit the beam report in the second UL channel 104.
[0027] However, certain details for Mode B have not yet been determined, such as details on how to define the second UL channel 104. Further, the second UL channel 104 in Mode B may experience decoding failure on the network side, and processes are needed to acknowledge successfully decoding the second UL channel 104 to avoid or reduce retransmissions. Handling decoding failure of the second UL channel 104 may include supporting retransmission of the first PUCCH channel 102 and / or the second UL channel 104. Thus, certain embodiments disclosed herein are provided to support the retransmissions in Mode B resolve these and other issues.
[0028] Configuration of the First UL Channel and the Second UL Channel in Mode B
[0029] FIG. 2 illustrates a one-to-one mapping between a first UL channel 202 and a second UL channel 204 to form Mode B transmission occasions 206 (four shown) , according to certain embodiments. A periodicity 208, a first offset 210 (Offset #1) , and a second offset 212 (Offset #2) shown in FIG. 2 may be provided by higher layers for the Mode B transmission occasions 206. The periodicity 208 and the first offset 210 may be provided, for example, in unit of slots and are used to determine the time domain location of the second UL channel 204. The second offset 212 may be provided, for example, in unit of slot or symbol, and is used to determine the time domain location of the corresponding first UL channel 202 relative to the slot or starting symbol of the second UL channel 204.
[0030] There are multiple candidates for the second UL channel 204. Candidates for the second UL channel 204 may be subject to UE capability report. In certain embodiments, one of PUCCH format 2, PUCCH format 3, or PUCCH format 4 can be configured by RRC signaling for the second UL channel 204. In such embodiments, a PUCCH format 0 or PUCCH format 1 cannot be configured for the second UL channel 204 (e.g., because the maximum payload for these formats is up to 2 bits and the second UL channel 204 may use, for example, 30 bits or more) . In certain embodiments, PUCCH format 4 used as the second UL channels 204 for multiple UEs may be allocated in the same transmission occasion with different RRC-configured orthogonal cover code (OCC) indexes (shown by way of example in FIG. 2 as OCC-0, OCC-1, OCC-2 and OCC-3) to maintain orthogonality across users.
[0031] In other embodiments, a Type-1 configured-grant physical uplink shared channel (CG-PUSCH may be configured for the second UL channel 204.
[0032] Acknowledgement for the Second UL Channel in Mode B
[0033] In certain embodiments, a variety of approaches are provided to acknowledge the successful reception of the UEIBR transmitted on the second UL channel in Mode B. In one example embodiment, after a UE transmits a UE-initiated beam report on time instance t0, the UE receives a new indicated TCI-state at a later time instance t1 (where t1 > t0) and a quasi co-located (QCL) reference signal (RS) of the indicated TCI-state is included in the UE initiated beam report.
[0034] In another example embodiment, the UE receives a UL grant with a cell radio network temporary identifier (C-RNTI) in a dedicated search space at time instance t1. When Mode B is configured, a dedicated search space may be configured by RRC signaling for this acknowledgement purpose. Alternatively, a default rule may be predetermined (e.g., specified in a 3GPP standard) and used to determine the dedicated search space. For example, the search space with a lowest identifier (ID) that is associated with the indicated TCI-state may be used to acknowledge the reception of second UL channel.
[0035] In some embodiments (e.g., for both of the example embodiments described above) , a monitoring window is used for detection of the acknowledgement signal. The monitoring window starts from the slot where the second UL channel is transmitted. The size of monitoring window is either predetermined (e.g., specified in a 3GPP standard) or configured by RRC signaling in unit of milliseconds or slots.
[0036] In NR, a slot format includes downlink (DL) symbols, UL symbols, and flexible symbols. Certain embodiments include determining which slots or symbols to count as part of the monitoring window. For example, FIG. 3 illustrates a monitoring window decrementing operation for receiving an acknowledge signal associated with a second UL channel 302, according to certain embodiments. After transmitting a first UL channel 304 and the second UL channel 302, a UE monitors a plurality of slots 306 for the acknowledge signal associated with the second UL channel 302. In this example, the monitoring window size is configured as four slots and the monitoring window is decremented by ‘1’ for each slot in the plurality of slots 306 that is counted. By way of example, the plurality of slots 306 includes four DL slots (shown as ‘D’ ) , one UL slot (shown as ‘U’ ) , and one flexible slot (shown as ‘Flexible’ ) .
[0037] In one embodiment, a monitoring window 308 is configured to include any slot in the plurality of slots 306. Thus, the monitoring window 308 includes the first two DL slots (D) , the flexible slot (Flexible) and the UL slot (U) .
[0038] In other embodiments, only valid DL slots and valid flexible slots are counted. A valid DL slot is not overlapped with a measurement gap and meets the following conditions: the slot is indicated as ‘’ downlink’ by higher layers (e.g., ‘tdd-UL-DL-ConfigurationCommon’ or ‘tdd-UL-DL-ConfigurationDedicated’ ) ; or the slot is indicated by system information (e.g., in a system information block (SIB) ) ; or the slot is indicated as ‘’downlink’ by DCI format 2_0. In the example shown in FIG. 3, each DL slot (D) is a valid DL slot. Certain such embodiments do not count slots consisting of flexible symbols (i.e., flexible slots) for the monitoring window decrement operation, while other embodiments do count the flexible slots as ‘valid’ slots and the monitoring window is decremented by ‘1’ if certain conditions are met.
[0039] For example, in one embodiment, flexible slots are not counted such that a monitoring window 310 includes the four valid DL slots (D) but not the flexible slot (Flexible) nor the UL slot (U) . In another embodiment, flexible slots are counted when, for the set of symbols of a search space, the UE does not detect a DCI format indicating to the UE to transmit a UL signal (e.g., PUSCH, PUCCH, sounding reference signal (SRS) or physical random access channel (PRACH) ) in at least one symbol of the set of symbols of the slot. In the example shown in FIG. 3, when the valid flexible slot is counted, a monitoring window 312 includes the first two DL slots (D) , the flexible slot (Flexible) , and the third DL slot (D) .
[0040] Retransmission of the First and / or Second UL Channel in Mode B
[0041] Certain embodiments include retransmission of the first UL channel and the second UL channel in a same Mode B transmission occasion. For example, FIG. 4 illustrates UE-autonomous retransmission of the first UL channel and the second UL channel, according to certain embodiments. For Mode B, an RRC signal may configure a transmission maximum value parameter TransMax that indicates a maximum number of retransmission attempts of the first UL channel and the second UL channel when Event-2 is triggered.
[0042] As shown in FIG. 4, a UE may transmit a first channel 402 and a second channel 404 in one or more Mode B transmission occasion 406 (three shown) . After each Mode-B transmission occasion 406, the UE monitors the corresponding acknowledge signal in a monitoring window 408. If the acknowledge signal is detected, the UE considers the UE-initiated beam report procedure successfully completed and resets a retransmission counter (Retransmission_Counter) to 0. However, if the acknowledge signal is not detected within the monitoring window 408, the UE increases the Retransmission_Counter by ‘1’ . If the Retransmission_Counter > TransMax, the UE consider the UE-initiated beam report procedure unsuccessfully completed; else the UE retransmits the first channel 402 and the second channel 404 using the earliest transmission occasion 406 and repeats the monitoring process for the corresponding acknowledge signal.
[0043] In certain embodiments, the network triggers retransmission for the second UL channel only. For example, the NW may detect both the first UL channel and the second UL channel, but a decoding failure occurs specifically for the second UL channel. As used herein, receiving a signal or a channel includes both detection and successful decoding of the signal or channel.
[0044] In one embodiment for NW-triggered retransmission for the second UL channel only, a dedicated hybrid automatic repeat request (HARQ) process ID ‘K’ is assigned by RRC signaling for the UE-initiated beam report (UEIBR) without sharing with a dynamic-grant physical uplink shared channel (DG-PUSCH) transmission. FIG. 5 illustrates a UEIBR retransmission of the second UL channel based on a HARQ process ID assigned by RRC signaling, according to certain embodiments. After a UE transmits a first UL channel 502 and a second UL channel 504 (e.g., with the UEIBR and UL shared channel (UL-SCH) ) in a Mode B transmission occasion 506, the UE detects UL scheduling DCI 508 in a monitoring window 510 with the HARQ process ID ‘K’a ssigned by RRC signaling. After validating the UL scheduling DCI 508, the UE performs a retransmission 512 of the UEIBR on a UL resource indicated by the UL scheduling DCI 508.
[0045] The UL scheduling DCI 508 may include, for example, information such as a transport block size, a modulation and coding scheme (MCS) used to transmit data, a redundancy version (RV) field indicating which version of the data is being transmitted, a 1-bit new data indicator (NDI) field indicating whether the current transmission or retransmission is carrying new data or a retransmission, the HARQ ID, a resource allocation for the UL resource for the retransmission 512, and a channel state information (CSI) request field. The UE validates, for scheduling retransmission of the second UL channel, the UL scheduling DCI 508 with C-RNTI or configured scheduling radio network temporary identifier (CS-RNTI) if the HARQ process ID equals the value ‘K’a nd the 1-bit NDI field equals 1 indicating new data. In addition, as shown in Table 1, the following fields may be used to validate the retransmission triggering DCI: the CSI request field is set to all zeros; and / or the RV field is set to all zeros. If validation is achieved, the UE retransmits the recent pending UEIBR on the UL resource provided by the detected DCI.
[0046] Table 1
[0047] In another embodiment for NW-triggered retransmission for the second UL channel only, a dedicated radio network temporary identifier (RNTI) associated with the UEIBR (UEIBR-RNTI) may be provided by RRC signaling. The UE determines the HARQ process ID associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel as HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.
[0048] FIG. 6 illustrates a UEIBR retransmission of the second UL channel based on a HARQ process ID associated with the UEIBR (HPIUEIBR) , according to certain embodiments. After a UE transmits a first UL channel 602 and a second UL channel 604 (e.g., with the UEIBR and UL-SCH) in a Mode B transmission occasion 606, the UE detects UL scheduling DCI 608 in a monitoring window 610. The cyclic redundancy check (CRC) of the UL scheduling DCI 608 is scrambled with the UEIBR-RNTI provided by RRC signaling.
[0049] As shown in Table 2, the UE validates, for scheduling retransmission of the second UL channel 604, the UL scheduling DCI 608 if the following conditions are all met: the CRC of the DCI format is scrambled with the UEIBR-RNTI; the HARQ process ID of the UL scheduling DCI 608 equals the HPIUEIBR value derived by the UE (shared with DG-PUSCH) ; the 1-bit NDI field equals 1 indicating new data; the CSI request field is set to all zeros; and the RV field is set to all zeros. If validation is achieved, the UE performs a retransmission 612 of the recent pending UEIBR on the UL resource provided by the detected UL scheduling DCI 608.
[0050] Table 2
[0051] In another embodiment for NW-triggered retransmission for the second UL channel only, no UL-SCH is transmitted on the PUSCH that is scheduled for UEIBR report. Not including the UL-SCH in Mode A, for example, may be achieved by mandating that a UL-SCH indicator field in the UL grant DCI format is set as ‘0’ . In Mode B, not including the UL-SCH may be mandated by a predetermined rule (e.g., specified in a 3GPP standard) or by configuring the PUCCH for the second UL channel transmission to not include the UL-SCH.
[0052] FIG. 7 illustrates a UEIBR retransmission of the second UL channel when no UL-SCH is transmitted with the UIEBR, according to certain embodiments. Similar to the process shown in FIG. 6, after a UE transmits a first UL channel 702 and a second UL channel 704 (i.e., including the UEIBR but without UL-SCH) in a Mode B transmission occasion 706, the UE detects UL scheduling DCI 708 in a monitoring window 710.
[0053] In this example, the CRC of the UL scheduling DCI 708 is scrambled with CS-RNTI. Thus, the UL scheduling DCI 708 triggers the retransmission 712 of the UEIBR when the following conditions are all met: the CRC of the DCI format is scrambled with the CS-RNTI; the HARQ process ID of the UL scheduling DCI 608 equals the HPIUEIBR value derived by the UE; the 1-bit NDI field equals 1 indicating new data; the CSI request field is set to all zeros; and the RV field is set to all zeros. If validation is achieved, the UE performs the retransmission 712 of the recent pending UEIBR on the UL resource provided by the detected UL scheduling DCI 708.
[0054] In another embodiment for NW-triggered retransmission for the second UL channel only, UL-SCH is transmitted on the PUSCH that is scheduled for UEIBR by using two HARQ process IDs for the CG-PUSCH occasion. One HARQ process ID is for the UL-SCH (HPIUL-SCH) and the other HARQ process ID is for the UEIBR (HPIUEIBR) . A HARQ process ID offset (Δoffset) may be used to derive the HPIUEIBR as HPIUL-SCH = floor (i / P) modulo (S) and HPIUEIBR = HPIUL-SCH + Δoffset.
[0055] FIG. 8 illustrates a UEIBR retransmission of the second UL channel using two HARQ process IDs when UL-SCH is transmitted with the UIEBR, according to certain embodiments. After a UE transmits a first UL channel 802 and a second UL channel 804 (i.e., including the UEIBR and the UL-SCH) in a Mode B transmission occasion 806, the UE detects first UL scheduling DCI 808 in a monitoring window 810. Similar to the process shown in FIG. 7, the CRC of the first UL scheduling DCI 808 is scrambled with CS-RNTI and has a HARQ ID equal to the HPIUEIBR derived by the UE. Thus, the UE performs a first retransmission 812 with the UEIBR when the following conditions are all met: the CRC of the DCI format is scrambled with the CS-RNTI; the HARQ process ID of the first UL scheduling DCI 808 equals the HPIUEIBR value derived by the UE; the 1-bit NDI field equals 1 indicating new data; the CSI request field is set to all zeros; and the RV field is set to all zeros.
[0056] In the example shown in FIG. 8, the UE may also detect a second UL scheduling DCI 814 having a HARQ ID equal to the HPIUL-SCH derived by the UE. After validating the second UL scheduling DCI 814, the UE performs a second retransmission 816 with the UL-SCH of the second UL channel 804.
[0057] FIG. 9 is a flowchart illustrating a method 900 for a UE to transmit a UEIBR to a base station in a wireless network, according to certain embodiments. In block 902, in response to an event trigger, the method 900 includes determining first resources for a first UL channel and second resources for a second UL channel based on a mapping between the first UL channel and the second UL channel. The first UL channel includes an indication to notify the wireless network of the second UL channel for carrying the UEIBR. In block 904, the method 900 includes transmitting, from the UE to the base station, the first UL channel comprising the indication and the second UL channel comprising the UEIBR. In block 906, the method 900 includes monitoring for an acknowledgement of the UEIBR transmitted on the second UL channel from the wireless network. In block 908, based on the monitoring, the method 900 includes determining a successful reception of the UEIBR transmitted on the second UL channel by the base station or retransmitting at least the UEIBR to the base station.
[0058] In certain embodiments of the method 900, determining the first resources for the first UL channel and the second resources for the second UL channel includes: receiving, at the UE from the base station, transmission occasion configuration information comprising a periodicity of a transmission occasion, a first offset of the second UL channel within the transmission occasion, and a second offset of the first UL channel from the second UL channel within the transmission occasion; determining a first time domain location of the second UL channel based on the periodicity and the first offset; and determining a second time domain location of the first UL channel based on the second offset and the first time domain location of the second UL channel. In certain such embodiments, the indication in the first UL channel comprises a single bit in a first physical uplink control channel (PUCCH) , and wherein the second UL channel includes: a second PUCCH comprising a PUCCH format 2, a PUCCH format 3, or a PUCCH format 4 configured by radio resource control (RRC) signaling; or a Type-1 configured-grant physical uplink shared channel (CG-PUSCH) . In certain embodiments, for the PUCCH format 4 used as the second UL channel, an orthogonal cover code (OCC) index is provided for the PUCCH format 4 to maintain orthogonality with other UEs within the transmission occasion.
[0059] In certain embodiments of the method 900, monitoring for the acknowledgement of UEIBR transmitted on the second UL channel includes, after transmitting the second UL channel comprising the UEIBR: receiving, at the UE from the base station, one or more configuration parameters comprising a new indicated transmission configuration indicator (TCI) state; and in response to determining that a quasi co-located (QCL) reference signal of the new indicated TCI state was included in the UEIBR transmitted on the second UL channel, inferring a successful reception of the UEIBR transmitted on the second UL channel by the base station.
[0060] In certain embodiments of the method 900, monitoring for the acknowledgement of the UEIBR transmitted on the second UL channel includes, after transmitting the second UL channel comprising the UEIBR: receiving, at the UE from the base station, a UL grant with a cell radio network temporary identifier (C-RNTI) in a dedicated search space; and in response to determining that the UL grant with the C-RNTI is received in the dedicated search space, inferring a successful reception of the UEIBR transmitted on the second UL by the base station. In certain such embodiments, the method further includes receiving, at the UE from the base station, radio resource configuration (RRC) signaling to configure the dedicated search space. The dedicated search space may comprise a lowest identifier (ID) among a plurality of search spaces that are associated with an indicated transmission configuration indicator (TCI) state.
[0061] In certain embodiments, the method 900 further includes monitoring for the acknowledgement of the UEIBR transmitted on the second UL channel within a monitoring window including a starting slot of the monitoring window following a slot where the second UL channel is transmitted and a size of the monitoring window that is predetermined or configured by the RRC signaling. In certain embodiments, the size of the monitoring window includes all slots from the starting slot. In other embodiments, the size of the monitoring window includes slots from the starting slot that do not overlap with a measurement gap and are valid downlink (DL) slots indicated by system information or the RRC signaling or by downlink control information (DCI) format 2_0. In certain embodiments, a flexible slot is not counted for the size of the monitoring window. In other embodiments, a flexible slot is counted for the size of the monitoring window when, for a set of symbols of a search space, the UE does not detect a downlink control information (DCI) format indicating for the UE to transmit a UL signal in at least one symbol of the set of symbols.
[0062] In certain embodiments of the method 900, determining the successful reception of the UEIBR transmitted on the second UL channel by the base station or retransmitting at least the UEIBR includes: receiving, from the base station, a radio resource configuration (RRC) signal configuring a transmission maximum value indicating a maximum number of retransmission attempts; when the acknowledgment is detected in a monitoring window, determining the successful reception of the UEIBR transmitted on the second UL channel and setting a retransmission counter to zero; and when the acknowledgment is not detected in the monitoring window: increasing the retransmission counter by one; when the retransmission counter is greater than the transmission maximum value, determining an unsuccessful reception of the UEIBR transmitted on the second UL channel by the base station; and when the retransmission counter is less than or equal to the transmission maximum value, retransmitting the first UL channel comprising the indication and the second UL channel comprising the UEIBR.
[0063] In certain embodiments of the method 900, retransmitting at least the UEIBR includes: receiving, from the base station, a radio resource configuration (RRC) signal configuring a dedicated hybrid automatic repeat request (HARQ) process identifier (ID) for the UEIBR, wherein the dedicated HARQ process ID is not shared with a dynamic-grant physical uplink shared channel (DG-PUSCH) ; and in response to validating a UL scheduling downlink control information (DCI) indicating the dedicated HARQ process ID, retransmitting the UEIBR on a UL resource indicated by the UL scheduling DCI. In certain such embodiments, validating the UL scheduling DCI comprises determining that a cyclic redundancy check of the UL scheduling DCI is scrambled with a cell radio network temporary identifier (C-RNTI) or a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the dedicated HARQ process ID, and a new data indicator (NDI) field in the UL scheduling DCI is set. Validating the UL scheduling DCI further may include determining that a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros.
[0064] In certain embodiments of the method 900, retransmitting at least the UEIBR includes: receiving, from the base station, a radio resource configuration (RRC) signal configuring a dedicated radio network temporary identifier (RNTI) associated with the UEIBR; determining a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel; and in response to validating a UL scheduling downlink control information (DCI) indicating the HPIUEIBR, retransmitting the UEIBR on a UL resource indicated by the UL scheduling DCI. In certain such embodiments, the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant. Validating the UL scheduling DCI may include determining that a cyclic redundancy check of the UL scheduling DCI is scrambled with the dedicated RNTI, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros.
[0065] In certain embodiments of the method 900, the second UL channel comprising the UEIBR does not allow additional data in a UL shared channel (UL-SCH) , and retransmitting at least the UEIBR includes: determining a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel; determining that a UL scheduling downlink control information (DCI) satisfies conditions comprising a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; and in response to the determining that the UL scheduling DCI satisfies the conditions, retransmitting the second UL channel comprising the UEIBR. In certain such embodiments, the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.
[0066] In certain embodiments of the method 900, the second UL channel comprising the UEIBR further comprises additional data in a UL shared channel (UL-SCH) , and retransmitting at least the UEIBR includes: determining a first hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UL-SCH (HPIUL-SCH) based on the second resources for the second UL channel; determining a second HARQ process ID associated with the UEIBR (HPIUEIBR) based on the HPIUL-SCH and a HARQ process ID offset; determining that a UL scheduling downlink control information (DCI) satisfies conditions comprising a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; and in response to the determining that the UL scheduling DCI satisfies the conditions, retransmitting the second UL channel comprising the UEIBR. In certain such embodiments, the HPIUL-SCH = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.
[0067] Embodiments contemplated herein include an apparatus comprising means to perform one or more elements of the method 900. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1202 that is a UE, as described herein) .
[0068] Embodiments contemplated herein include one or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of the method 900. This non-transitory computer-readable media may be, for example, a memory of a UE (such as a memory 1206 of a wireless device 1202 that is a UE, as described herein) .
[0069] Embodiments contemplated herein include an apparatus comprising logic, modules, or circuitry to perform one or more elements of the method 900. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1202 that is a UE, as described herein) .
[0070] Embodiments contemplated herein include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of the method 900. This apparatus may be, for example, an apparatus of a UE (such as a wireless device 1202 that is a UE, as described herein) .
[0071] Embodiments contemplated herein include a signal as described in or related to one or more elements of the method 900.
[0072] Embodiments contemplated herein include a computer program or computer program product comprising instructions, wherein execution of the program by a processor is to cause the processor to carry out one or more elements of the method 900. The processor may be a processor of a UE (such as a processor (s) 1204 of a wireless device 1202 that is a UE, as described herein) . These instructions may be, for example, located in the processor and / or on a memory of the UE (such as a memory 1206 of a wireless device 1202 that is a UE, as described herein) .
[0073] FIG. 10 is a flowchart of a method 1000 for a base station to configure a UEIBR in a wireless network, according to certain embodiments. In block 1002, the method 1000 includes generating transmission occasion configuration information for use by a UE to determine first resources for a first UL channel and second resources for a second UL channel based on a mapping between the first UL channel and the second UL channel. The first UL channel is to include an indication to notify the wireless network of the second UL channel for carrying the UEIBR. The transmission occasion configuration information comprises a periodicity of a transmission occasion, a first offset of the second UL channel within the transmission occasion, and a second offset of the first UL channel from the second UL channel within the transmission occasion. In block 1004, the method 1000 includes transmitting, to the UE, the transmission occasion configuration information. In block 1006, when the first UL channel comprising the indication and the second UL channel comprising the UEIBR are successfully decoded at the base station, the method 1000 sending an acknowledgement of the UEIBR transmitted on the second UL channel to the UE. In block 1008, when the second UL channel comprising the UEIBR is not successfully decoded at the base station, the method 1000 includes receiving a retransmission of at least the UEIBR from the UE.
[0074] In certain embodiments of the method 1000, the indication in the first UL channel comprises a single bit in a first physical uplink control channel (PUCCH) , and the second UL channel includes: a second PUCCH comprising a PUCCH format 2, a PUCCH format 3, or a PUCCH format 4 configured by radio resource control (RRC) signaling; or a Type-1 configured-grant physical uplink shared channel (CG-PUSCH) . In certain such embodiments, for the PUCCH format 4 used as the second UL channel, an orthogonal cover code (OCC) index is provided for the PUCCH format 4 to maintain orthogonality with other UEs within the transmission occasion.
[0075] In certain embodiments, the method 1000 further includes, when the UEIBR transmitted on the second UL channel is successfully decoded at the base station, transmitting one or more configuration parameters to the UE comprising a new indicated transmission configuration indicator (TCI) state, wherein a quasi co-located (QCL) reference signal of the new indicated TCI state is included in the UEIBR received on the second UL channel.
[0076] In certain embodiments, the method 1000 further includes, when the UEIBR transmitted on the second UL channel is successfully decoded at the base station, transmitting a UL grant with a cell radio network temporary identifier (C-RNTI) in a dedicated search space to the UE. In certain such embodiments, the method further includes transmitting, to the UE, radio resource configuration (RRC) signaling to configure the dedicated search space. The dedicated search space may comprise a lowest identifier (ID) among a plurality of search spaces that are associated with an indicated transmission configuration indicator (TCI) state.
[0077] In certain embodiments, the method 1000 further includes configuring a monitoring window including a starting slot of a monitoring window following a slot where the second UL channel is transmitted and a size that is predetermined or configured by the RRC signaling. In certain such embodiments, the size of the monitoring window includes all slots from the starting slot. In other embodiments, the size of the monitoring window includes slots from the starting slot that do not overlap with a measurement gap and are valid downlink (DL) slots indicated by system information or the RRC signaling or by downlink control information (DCI) format 2_0. In certain embodiments, a flexible slot is not counted for the size of the monitoring window. In other embodiments, a flexible slot is counted for the size of the monitoring window when, for a set of symbols of a search space, the UE does not detect a downlink control information (DCI) format indicating for the UE to transmit a UL signal in at least one symbol of the set of symbols.
[0078] In certain embodiments, the method 1000 further includes: transmitting, to the UE, a radio resource configuration (RRC) signal configuring a transmission maximum value indicating a maximum number of retransmission attempts; and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, receiving the retransmission, from the UE, comprising both the first UL channel with the indication and the second UL channel with the UEIBR.
[0079] In certain embodiments, the method 1000 further includes: transmitting, to the UE, a radio resource configuration (RRC) signal configuring a dedicated hybrid automatic repeat request (HARQ) process identifier (ID) for the UEIBR, wherein the dedicated HARQ process ID is not shared with a dynamic-grant physical uplink shared channel (DG-PUSCH) ; in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) indicating the dedicated HARQ process ID to the UE; and receiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI. In certain such embodiments, the method further includes scrambling a cyclic redundancy check of the UL scheduling DCI with a cell radio network temporary identifier (C-RNTI) or a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, and setting a new data indicator (NDI) field to one in the UL scheduling DCI. In addition, or in other embodiments, the method further includes setting a channel state information (CSI) request field in the UL scheduling DCI to all zeros, and setting a redundancy version (RV) field in the UL scheduling DCI to all zeros.
[0080] In certain embodiments, the method 1000 further includes: transmitting, to the UE, a radio resource configuration (RRC) signal configuring a dedicated radio network temporary identifier (RNTI) associated with the UEIBR; in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) indicating a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel; and receiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI. In certain such embodiments, the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant. In certain embodiments, the method further includes scrambling a cyclic redundancy check of the UL scheduling DCI with the dedicated RNTI, setting a new data indicator (NDI) field in the UL scheduling DCI to one, setting a channel state information (CSI) request field in the UL scheduling DCI to all zeros, and setting a redundancy version (RV) field in the UL scheduling DCI to all zeros.
[0081] In certain embodiments, the method 1000 further includes: configuring the UE to not allow additional data in a UL shared channel (UL-SCH) with the second UL channel comprising the UEIBR; in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) comprising a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel, wherein a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, a new data indicator (NDI) field in the UL scheduling DCI is set to one, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; and receiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI. In certain such embodiments, the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.
[0082] In certain embodiments, the method 1000 further includes: configuring the UE to allow additional data in a UL shared channel (UL-SCH) with the second UL channel comprising the UEIBR; in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a first UL scheduling downlink control information (DCI) comprising a first hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UL-SCH (HPIUL-SCH) based on the second resources for the second UL channel, and a second UL scheduling DCI comprising a second HARQ process ID associated with the UEIBR (HPIUEIBR) based on the HPIUL-SCH and a HARQ process ID offset, wherein each of the first UL scheduling DCI and the second UL scheduling DCI comprises a cyclic redundancy check scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, a new data indicator (NDI) field set to one, a channel state information (CSI) request field set to all zeros, and a redundancy version (RV) field set to all zeros; and wherein receiving, from the UE, the retransmission comprises receiving a first retransmission comprising the UL-SCH on a first UL resource indicated by the first UL scheduling DCI and receiving a second retransmission comprising the UEIBR on a second UL resource indicated by the second UL scheduling DCI. In certain such embodiments, the HPIUL-SCH = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.
[0083] Embodiments contemplated herein include an apparatus comprising means to perform one or more elements of the method 1000. This apparatus may be, for example, an apparatus of a base station (such as a network device 1218 that is a base station, as described herein) .
[0084] Embodiments contemplated herein include one or more non-transitory computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform one or more elements of the method 1000. This non-transitory computer-readable media may be, for example, a memory of a base station (such as a memory 1222 of a network device 1218 that is a base station, as described herein) .
[0085] Embodiments contemplated herein include an apparatus comprising logic, modules, or circuitry to perform one or more elements of the method 1000. This apparatus may be, for example, an apparatus of a base station (such as a network device 1218 that is a base station, as described herein) .
[0086] Embodiments contemplated herein include an apparatus comprising: one or more processors and one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform one or more elements of the method 1000. This apparatus may be, for example, an apparatus of a base station (such as a network device 1218 that is a base station, as described herein) .
[0087] Embodiments contemplated herein include a signal as described in or related to one or more elements of the method 1000.
[0088] Embodiments contemplated herein include a computer program or computer program product comprising instructions, wherein execution of the program by a processing element is to cause the processing element to carry out one or more elements of the method 1000. The processor may be a processor of a base station (such as a processor (s) 1220 of a network device 1218 that is a base station, as described herein) . These instructions may be, for example, located in the processor and / or on a memory of the base station (such as a memory 1222 of a network device 1218 that is a base station, as described herein) .
[0089] FIG. 11 illustrates an example architecture of a wireless communication system 1100, according to embodiments disclosed herein. The following description is provided for an example wireless communication system 1100 that operates in conjunction with the LTE system standards and / or 5G or NR system standards as provided by 3GPP technical specifications.
[0090] As shown by FIG. 11, the wireless communication system 1100 includes UE 1102 and UE 1104 (although any number of UEs may be used) . In this example, the UE 1102 and the UE 1104 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks) , but may also comprise any mobile or non-mobile computing device configured for wireless communication.
[0091] The UE 1102 and UE 1104 may be configured to communicatively couple with a RAN 1106. In embodiments, the RAN 1106 may be NG-RAN, E-UTRAN, etc. The UE 1102 and UE 1104 utilize connections (or channels) (shown as connection 1108 and connection 1110, respectively) with the RAN 1106, each of which comprises a physical communications interface. The RAN 1106 can include one or more base stations (such as base station 1112 and base station 1114) that enable the connection 1108 and connection 1110.
[0092] In this example, the connection 1108 and connection 1110 are air interfaces to enable such communicative coupling, and may be consistent with RAT (s) used by the RAN 1106, such as, for example, an LTE and / or NR.
[0093] In some embodiments, the UE 1102 and UE 1104 may also directly exchange communication data via a sidelink interface 1116. The UE 1104 is shown to be configured to access an access point (shown as AP 1118) via connection 1120. By way of example, the connection 1120 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.11 protocol, wherein the AP 1118 may comprise a router. In this example, the AP 1118 may be connected to another network (for example, the Internet) without going through a CN 1124.
[0094] In embodiments, the UE 1102 and UE 1104 can be configured to communicate using orthogonal frequency division multiplexing (OFDM) communication signals with each other or with the base station 1112 and / or the base station 1114 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an orthogonal frequency division multiple access (OFDMA) communication technique (e.g., for downlink communications) or a single carrier frequency division multiple access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink communications) , although the scope of the embodiments is not limited in this respect. The OFDM signals can comprise a plurality of orthogonal subcarriers.
[0095] In some embodiments, all or parts of the base station 1112 or base station 1114 may be implemented as one or more software entities running on server computers as part of a virtual network. In addition, or in other embodiments, the base station 1112 or base station 1114 may be configured to communicate with one another via interface 1122. In embodiments where the wireless communication system 1100 is an LTE system (e.g., when the CN 1124 is an EPC) , the interface 1122 may be an X2 interface. The X2 interface may be defined between two or more base stations (e.g., two or more eNBs and the like) that connect to an EPC, and / or between two eNBs connecting to the EPC. In embodiments where the wireless communication system 1100 is an NR system (e.g., when CN 1124 is a 5GC) , the interface 1122 may be an Xn interface. The Xn interface is defined between two or more base stations (e.g., two or more gNBs and the like) that connect to 5GC, between a base station 1112 (e.g., a gNB) connecting to 5GC and an eNB, and / or between two eNBs connecting to 5GC (e.g., CN 1124) .
[0096] The RAN 1106 is shown to be communicatively coupled to the CN 1124. The CN 1124 may comprise one or more network elements 1126, which are configured to offer various data and telecommunications services to customers / subscribers (e.g., users of UE 1102 and UE 1104) who are connected to the CN 1124 via the RAN 1106. The components of the CN 1124 may be implemented in one physical device or separate physical devices including components to read and execute instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) .
[0097] In embodiments, the CN 1124 may be an EPC, and the RAN 1106 may be connected with the CN 1124 via an S1 interface 1128. In embodiments, the S1 interface 1128 may be split into two parts, an S1 user plane (S1-U) interface, which carries traffic data between the base station 1112 or base station 1114 and a serving gateway (S-GW) , and the S1-MME interface, which is a signaling interface between the base station 1112 or base station 1114 and mobility management entities (MMEs) .
[0098] In embodiments, the CN 1124 may be a 5GC, and the RAN 1106 may be connected with the CN 1124 via an NG interface 1128. In embodiments, the NG interface 1128 may be split into two parts, an NG user plane (NG-U) interface, which carries traffic data between the base station 1112 or base station 1114 and a user plane function (UPF) , and the S1 control plane (NG-C) interface, which is a signaling interface between the base station 1112 or base station 1114 and access and mobility management functions (AMFs) .
[0099] Generally, an application server 1130 may be an element offering applications that use internet protocol (IP) bearer resources with the CN 1124 (e.g., packet switched data services) . The application server 1130 can also be configured to support one or more communication services (e.g., VoIP sessions, group communication sessions, etc. ) for the UE 1102 and UE 1104 via the CN 1124. The application server 1130 may communicate with the CN 1124 through an IP communications interface 1132.
[0100] FIG. 12 illustrates a system 1200 for performing signaling 1234 between a wireless device 1202 and a network device 1218, according to embodiments disclosed herein. The system 1200 may be a portion of a wireless communications system as herein described. The wireless device 1202 may be, for example, a UE of a wireless communication system. The network device 1218 may be, for example, a base station (e.g., an eNB or a gNB) of a wireless communication system.
[0101] The wireless device 1202 may include one or more processor (s) 1204. The processor (s) 1204 may execute instructions such that various operations of the wireless device 1202 are performed, as described herein. The processor (s) 1204 may include one or more baseband processors implemented using, for example, a central processing unit (CPU) , a digital signal processor (DSP) , an application specific integrated circuit (ASIC) , a controller, a field programmable gate array (FPGA) device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
[0102] The wireless device 1202 may include a memory 1206. The memory 1206 may be a non-transitory computer-readable storage medium that stores instructions 1208 (which may include, for example, the instructions being executed by the processor (s) 1204) . The instructions 1208 may also be referred to as program code or a computer program. The memory 1206 may also store data used by, and results computed by, the processor (s) 1204.
[0103] The wireless device 1202 may include one or more transceiver (s) 1210 that may include radio frequency (RF) transmitter circuitry and / or receiver circuitry that use the antenna (s) 1212 of the wireless device 1202 to facilitate signaling (e.g., the signaling 1234) to and / or from the wireless device 1202 with other devices (e.g., the network device 1218) according to corresponding RATs.
[0104] The wireless device 1202 may include one or more antenna (s) 1212 (e.g., one, two, four, or more) . For embodiments with multiple antenna (s) 1212, the wireless device 1202 may leverage the spatial diversity of such multiple antenna (s) 1212 to send and / or receive multiple different data streams on the same time and frequency resources. This behavior may be referred to as, for example, multiple input multiple output (MIMO) behavior (referring to the multiple antennas used at each of a transmitting device and a receiving device that enable this aspect) . MIMO transmissions by the wireless device 1202 may be accomplished according to precoding (or digital beamforming) that is applied at the wireless device 1202 that multiplexes the data streams across the antenna (s) 1212 according to known or assumed channel characteristics such that each data stream is received with an appropriate signal strength relative to other streams and at a desired location in the spatial domain (e.g., the location of a receiver associated with that data stream) . Certain embodiments may use single user MIMO (SU-MIMO) methods (where the data streams are all directed to a single receiver) and / or multi user MIMO (MU-MIMO) methods (where individual data streams may be directed to individual (different) receivers in different locations in the spatial domain) .
[0105] In certain embodiments having multiple antennas, the wireless device 1202 may implement analog beamforming techniques, whereby phases of the signals sent by the antenna (s) 1212 are relatively adjusted such that the (joint) transmission of the antenna (s) 1212 can be directed (this is sometimes referred to as beam steering) .
[0106] The wireless device 1202 may include one or more interface (s) 1214. The interface (s) 1214 may be used to provide input to or output from the wireless device 1202. For example, a wireless device 1202 that is a UE may include interface (s) 1214 such as microphones, speakers, a touchscreen, buttons, and the like in order to allow for input and / or output to the UE by a user of the UE. Other interfaces of such a UE may be made up of transmitters, receivers, and other circuitry (e.g., other than the transceiver (s) 1210 / antenna (s) 1212 already described) that allow for communication between the UE and other devices and may operate according to known protocols (e.g., and the like) .
[0107] The wireless device 1202 may include a UEIBR module 1216. The UEIBR module 1216 may be implemented via hardware, software, or combinations thereof. For example, the UEIBR module 1216 may be implemented as a processor, circuit, and / or instructions 1208 stored in the memory 1206 and executed by the processor (s) 1204. In some examples, the UEIBR module 1216 may be integrated within the processor (s) 1204 and / or the transceiver (s) 1210. For example, the UEIBR module 1216 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor (s) 1204 or the transceiver (s) 1210.
[0108] The UEIBR module 1216 may be used for various aspects of the present disclosure, for example, aspects of FIG. 2 to FIG. 9.
[0109] The network device 1218 may include one or more processor (s) 1220. The processor (s) 1220 may execute instructions such that various operations of the network device 1218 are performed, as described herein. The processor (s) 1220 may include one or more baseband processors implemented using, for example, a CPU, a DSP, an ASIC, a controller, an FPGA device, another hardware device, a firmware device, or any combination thereof configured to perform the operations described herein.
[0110] The network device 1218 may include a memory 1222. The memory 1222 may be a non-transitory computer-readable storage medium that stores instructions 1224 (which may include, for example, the instructions being executed by the processor (s) 1220) . The instructions 1224 may also be referred to as program code or a computer program. The memory 1222 may also store data used by, and results computed by, the processor (s) 1220.
[0111] The network device 1218 may include one or more transceiver (s) 1226 that may include RF transmitter circuitry and / or receiver circuitry that use the antenna (s) 1228 of the network device 1218 to facilitate signaling (e.g., the signaling 1234) to and / or from the network device 1218 with other devices (e.g., the wireless device 1202) according to corresponding RATs.
[0112] The network device 1218 may include one or more antenna (s) 1228 (e.g., one, two, four, or more) . In embodiments having multiple antenna (s) 1228, the network device 1218 may perform MIMO, digital beamforming, analog beamforming, beam steering, etc., as has been described.
[0113] The network device 1218 may include one or more interface (s) 1230. The interface (s) 1230 may be used to provide input to or output from the network device 1218. For example, a network device 1218 that is a base station may include interface (s) 1230 made up of transmitters, receivers, and other circuitry (e.g., other than the transceiver (s) 1226 / antenna (s) 1228 already described) that enables the base station to communicate with other equipment in a core network, and / or that enables the base station to communicate with external networks, computers, databases, and the like for purposes of operations, administration, and maintenance of the base station or other equipment operably connected thereto.
[0114] The network device 1218 may include a UEIBR module 1232. The UEIBR module 1232 may be implemented via hardware, software, or combinations thereof. For example, the UEIBR module 1232 may be implemented as a processor, circuit, and / or instructions 1224 stored in the memory 1222 and executed by the processor (s) 1220. In some examples, the UEIBR module 1232 may be integrated within the processor (s) 1220 and / or the transceiver (s) 1226. For example, the UEIBR module 1232 may be implemented by a combination of software components (e.g., executed by a DSP or a general processor) and hardware components (e.g., logic gates and circuitry) within the processor (s) 1220 or the transceiver (s) 1226.
[0115] The UEIBR module 1232 may be used for various aspects of the present disclosure, for example, aspects of FIG. 2 to FIG. 8, and FIG. 10.
[0116] For one or more embodiments, at least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, and / or methods as set forth herein. For example, a baseband processor as described herein in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein. For another example, circuitry associated with a UE, base station, network element, etc. as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth herein.
[0117] Any of the above described embodiments may be combined with any other embodiment (or combination of embodiments) , unless explicitly stated otherwise. The foregoing description of one or more implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments.
[0118] Embodiments and implementations of the systems and methods described herein may include various operations, which may be embodied in machine-executable instructions to be executed by a computer system. A computer system may include one or more general-purpose or special-purpose computers (or other electronic devices) . The computer system may include hardware components that include specific logic for performing the operations or may include a combination of hardware, software, and / or firmware.
[0119] It should be recognized that the systems described herein include descriptions of specific embodiments. These embodiments can be combined into single systems, partially combined into other systems, split into multiple systems or divided or combined in other ways. In addition, it is contemplated that parameters, attributes, aspects, etc. of one embodiment can be used in another embodiment. The parameters, attributes, aspects, etc. are merely described in one or more embodiments for clarity, and it is recognized that the parameters, attributes, aspects, etc. can be combined with or substituted for parameters, attributes, aspects, etc. of another embodiment unless specifically disclaimed herein.
[0120] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
[0121] Although the foregoing has been described in some detail for purposes of clarity, it will be apparent that certain changes and modifications may be made without departing from the principles thereof. It should be noted that there are many alternative ways of implementing both the processes and apparatuses described herein. Accordingly, the present embodiments are to be considered illustrative and not restrictive, and the description is not to be limited to the details given herein, but may be modified within the scope and equivalents of the appended claims.
Claims
1.A method for a user equipment (UE) to transmit a UE-initiated beam report (UEIBR) to a base station in a wireless network, the method comprising:in response to an event trigger, determining first resources for a first uplink (UL) channel and second resources for a second UL channel based on a mapping between the first UL channel and the second UL channel, wherein the first UL channel comprises an indication to notify the wireless network of the second UL channel for carrying the UEIBR;transmitting, from the UE to the base station, the first UL channel comprising the indication and the second UL channel comprising the UEIBR;monitoring for an acknowledgement of the UEIBR transmitted on the second UL channel from the wireless network; andbased on the monitoring, determining a successful reception of the UEIBR transmitted on the second UL channel by the base station or retransmitting at least the UEIBR to the base station.2.The method of claim 1, wherein determining the first resources for the first UL channel and the second resources for the second UL channel comprises:receiving, at the UE from the base station, transmission occasion configuration information comprising a periodicity of a transmission occasion, a first offset of the second UL channel within the transmission occasion, and a second offset of the first UL channel from the second UL channel within the transmission occasion;determining a first time domain location of the second UL channel based on the periodicity and the first offset; anddetermining a second time domain location of the first UL channel based on the second offset and the first time domain location of the second UL channel.3.The method of claim 2, wherein the indication in the first UL channel comprises a single bit in a first physical uplink control channel (PUCCH) , andwherein the second UL channel comprises:a second PUCCH comprising a PUCCH format 2, a PUCCH format 3, or a PUCCH format 4 configured by radio resource control (RRC) signaling; ora Type-1 configured-grant physical uplink shared channel (CG-PUSCH) .4.The method of claim 3, wherein, for the PUCCH format 4 used as the second UL channel, an orthogonal cover code (OCC) index is provided for the PUCCH format 4 to maintain orthogonality with other UEs within the transmission occasion.5.The method of claim 1, wherein monitoring for the acknowledgement of UEIBR transmitted on the second UL channel comprises, after transmitting the second UL channel comprising the UEIBR:receiving, at the UE from the base station, one or more configuration parameters comprising a new indicated transmission configuration indicator (TCI) state; andin response to determining that a quasi co-located (QCL) reference signal of the new indicated TCI state was included in the UEIBR transmitted on the second UL channel, inferring a successful reception of the UEIBR transmitted on the second UL channel by the base station.6.The method of claim 1, wherein monitoring for the acknowledgement of the UEIBR transmitted on the second UL channel comprises, after transmitting the second UL channel comprising the UEIBR:receiving, at the UE from the base station, a UL grant with a cell radio network temporary identifier (C-RNTI) in a dedicated search space; andin response to determining that the UL grant with the C-RNTI is received in the dedicated search space, inferring a successful reception of the UEIBR transmitted on the second UL by the base station.7.The method of claim 6, further comprising receiving, at the UE from the base station, radio resource configuration (RRC) signaling to configure the dedicated search space.8.The method of claim 6, wherein the dedicated search space comprises a lowest identifier (ID) among a plurality of search spaces that are associated with an indicated transmission configuration indicator (TCI) state.9.The method of claim 5 or 8, further comprising monitoring for the acknowledgement of the UEIBR transmitted on the second UL channel within a monitoring window including a starting slot of the monitoring window following a slot where the second UL channel is transmitted and a size of the monitoring window that is predetermined or configured by the RRC signaling.10.The method of claim 9, wherein the size of the monitoring window includes all slots from the starting slot.11.The method of claim 9, wherein the size of the monitoring window includes slots from the starting slot that do not overlap with a measurement gap and are valid downlink (DL) slots indicated by system information or the RRC signaling or by downlink control information (DCI) format 2_0.12.The method of claim 9, wherein a flexible slot is not counted for the size of the monitoring window.13.The method of claim 9, wherein a flexible slot is counted for the size of the monitoring window when, for a set of symbols of a search space, the UE does not detect a downlink control information (DCI) format indicating for the UE to transmit a UL signal in at least one symbol of the set of symbols.14.The method of claim 1, wherein determining the successful reception of the UEIBR transmitted on the second UL channel by the base station or retransmitting at least the UEIBR comprises:receiving, from the base station, a radio resource configuration (RRC) signal configuring a transmission maximum value indicating a maximum number of retransmission attempts;when the acknowledgment is detected in a monitoring window, determining the successful reception of the UEIBR transmitted on the second UL channel and setting a retransmission counter to zero; andwhen the acknowledgment is not detected in the monitoring window:increasing the retransmission counter by one;when the retransmission counter is greater than the transmission maximum value, determining an unsuccessful reception of the UEIBR transmitted on the second UL channel by the base station; andwhen the retransmission counter is less than or equal to the transmission maximum value, retransmitting the first UL channel comprising the indication and the second UL channel comprising the UEIBR.15.The method of claim 1, wherein retransmitting at least the UEIBR comprises:receiving, from the base station, a radio resource configuration (RRC) signal configuring a dedicated hybrid automatic repeat request (HARQ) process identifier (ID) for the UEIBR, wherein the dedicated HARQ process ID is not shared with a dynamic-grant physical uplink shared channel (DG-PUSCH) ; andin response to validating a UL scheduling downlink control information (DCI) indicating the dedicated HARQ process ID, retransmitting the UEIBR on a UL resource indicated by the UL scheduling DCI.16.The method of claim 15, wherein validating the UL scheduling DCI comprises determining that a cyclic redundancy check of the UL scheduling DCI is scrambled with a cell radio network temporary identifier (C-RNTI) or a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the dedicated HARQ process ID, and a new data indicator (NDI) field in the UL scheduling DCI is set.17.The method of claim 16, wherein validating the UL scheduling DCI further comprises determining that a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros.18.The method of claim 1, wherein retransmitting at least the UEIBR comprises:receiving, from the base station, a radio resource configuration (RRC) signal configuring a dedicated radio network temporary identifier (RNTI) associated with the UEIBR;determining a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel; andin response to validating a UL scheduling downlink control information (DCI) indicating the HPIUEIBR, retransmitting the UEIBR on a UL resource indicated by the UL scheduling DCI.19.The method of claim 18, wherein the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.20.The method of claim 18, wherein validating the UL scheduling DCI comprises determining that a cyclic redundancy check of the UL scheduling DCI is scrambled with the dedicated RNTI, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros.21.The method of claim 1, wherein the second UL channel comprising the UEIBR does not allow additional data in a UL shared channel (UL-SCH) , and wherein retransmitting at least the UEIBR comprises:determining a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel;determining that a UL scheduling downlink control information (DCI) satisfies conditions comprising a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; andin response to the determining that the UL scheduling DCI satisfies the conditions, retransmitting the second UL channel comprising the UEIBR.22.The method of claim 21, wherein the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.23.The method of claim 1, wherein the second UL channel comprising the UEIBR further comprises additional data in a UL shared channel (UL-SCH) , and wherein retransmitting at least the UEIBR comprises:determining a first hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UL-SCH (HPIUL-SCH) based on the second resources for the second UL channel;determining a second HARQ process ID associated with the UEIBR (HPIUEIBR) based on the HPIUL-SCH and a HARQ process ID offset;determining that a UL scheduling downlink control information (DCI) satisfies conditions comprising a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, the UL scheduling DCI indicates the HPIUEIBR, a new data indicator (NDI) field in the UL scheduling DCI is set, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; andin response to the determining that the UL scheduling DCI satisfies the conditions, retransmitting the second UL channel comprising the UEIBR.24.The method of claim 23, wherein the HPIUL-SCH = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.25.A method for a base station to configure a user equipment (UE) -initiated beam report (UEIBR) in a wireless network, the method comprising:generating transmission occasion configuration information for use by a UE to determine first resources for a first uplink (UL) channel and second resources for a second UL channel based on a mapping between the first UL channel and the second UL channel, wherein the first UL channel is to include an indication to notify the wireless network of the second UL channel for carrying the UEIBR, and wherein the transmission occasion configuration information comprises a periodicity of a transmission occasion, a first offset of the second UL channel within the transmission occasion, and a second offset of the first UL channel from the second UL channel within the transmission occasion;transmitting, to the UE, the transmission occasion configuration information;when the first UL channel comprising the indication and the second UL channel comprising the UEIBR are successfully decoded at the base station, sending an acknowledgement of the UEIBR transmitted on the second UL channel to the UE; andwhen the second UL channel comprising the UEIBR is not successfully decoded at the base station, receiving a retransmission of at least the UEIBR from the UE.26.The method of claim 25, wherein the indication in the first UL channel comprises a single bit in a first physical uplink control channel (PUCCH) , andwherein the second UL channel comprises:a second PUCCH comprising a PUCCH format 2, a PUCCH format 3, or a PUCCH format 4 configured by radio resource control (RRC) signaling; ora Type-1 configured-grant physical uplink shared channel (CG-PUSCH) .27.The method of claim 26, wherein, for the PUCCH format 4 used as the second UL channel, an orthogonal cover code (OCC) index is provided for the PUCCH format 4 to maintain orthogonality with other UEs within the transmission occasion.28.The method of claim 25, further comprising, when the UEIBR transmitted on the second UL channel is successfully decoded at the base station, transmitting one or more configuration parameters to the UE comprising a new indicated transmission configuration indicator (TCI) state, wherein a quasi co-located (QCL) reference signal of the new indicated TCI state is included in the UEIBR received on the second UL channel.29.The method of claim 25, further comprising, when the UEIBR transmitted on the second UL channel is successfully decoded at the base station, transmitting a UL grant with a cell radio network temporary identifier (C-RNTI) in a dedicated search space to the UE.30.The method of claim 29, further comprising transmitting, to the UE, radio resource configuration (RRC) signaling to configure the dedicated search space.31.The method of claim 29, wherein the dedicated search space comprises a lowest identifier (ID) among a plurality of search spaces that are associated with an indicated transmission configuration indicator (TCI) state.32.The method of claim 28 or 31, further comprising configuring a monitoring window including a starting slot of a monitoring window following a slot where the second UL channel is transmitted and a size that is predetermined or configured by the RRC signaling.33.The method of claim 32, wherein the size of the monitoring window includes all slots from the starting slot.34.The method of claim 32, wherein the size of the monitoring window includes slots from the starting slot that do not overlap with a measurement gap and are valid downlink (DL) slots indicated by system information or the RRC signaling or by downlink control information (DCI) format 2_0.35.The method of claim 32, wherein a flexible slot is not counted for the size of the monitoring window.36.The method of claim 32, wherein a flexible slot is counted for the size of the monitoring window when, for a set of symbols of a search space, the UE does not detect a downlink control information (DCI) format indicating for the UE to transmit a UL signal in at least one symbol of the set of symbols.37.The method of claim 25, further comprising:transmitting, to the UE, a radio resource configuration (RRC) signal configuring a transmission maximum value indicating a maximum number of retransmission attempts; andwhen the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, receiving the retransmission, from the UE, comprising both the first UL channel with the indication and the second UL channel with the UEIBR.38.The method of claim 25, further comprising:transmitting, to the UE, a radio resource configuration (RRC) signal configuring a dedicated hybrid automatic repeat request (HARQ) process identifier (ID) for the UEIBR, wherein the dedicated HARQ process ID is not shared with a dynamic-grant physical uplink shared channel (DG-PUSCH) ;in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) indicating the dedicated HARQ process ID to the UE; andreceiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI.39.The method of claim 38, further comprising scrambling a cyclic redundancy check of the UL scheduling DCI with a cell radio network temporary identifier (C-RNTI) or a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, and setting a new data indicator (NDI) field to one in the UL scheduling DCI.40.The method of claim 39, further comprising setting a channel state information (CSI) request field in the UL scheduling DCI to all zeros, and setting a redundancy version (RV) field in the UL scheduling DCI to all zeros.41.The method of claim 25, further comprising:transmitting, to the UE, a radio resource configuration (RRC) signal configuring a dedicated radio network temporary identifier (RNTI) associated with the UEIBR;in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) indicating a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel; andreceiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI.42.The method of claim 41, wherein the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.43.The method of claim 41, further comprising scrambling a cyclic redundancy check of the UL scheduling DCI with the dedicated RNTI, setting a new data indicator (NDI) field in the UL scheduling DCI to one, setting a channel state information (CSI) request field in the UL scheduling DCI to all zeros, and setting a redundancy version (RV) field in the UL scheduling DCI to all zeros.44.The method of claim 25, further comprising:configuring the UE to not allow additional data in a UL shared channel (UL-SCH) with the second UL channel comprising the UEIBR;in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a UL scheduling downlink control information (DCI) comprising a hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UEIBR (HPIUEIBR) based on the second resources for the second UL channel,wherein a cyclic redundancy check of the UL scheduling DCI is scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, a new data indicator (NDI) field in the UL scheduling DCI is set to one, a channel state information (CSI) request field in the UL scheduling DCI is set to all zeros, and a redundancy version (RV) field in the UL scheduling DCI is set to all zeros; andreceiving the retransmission, from the UE, comprising the UEIBR on a UL resource indicated by the UL scheduling DCI.45.The method of claim 44, wherein the HPIUEIBR = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.46.The method of claim 25, further comprising:configuring the UE to allow additional data in a UL shared channel (UL-SCH) with the second UL channel comprising the UEIBR;in response to receiving the first UL channel comprising the indication and when the UEIBR transmitted on the second UL channel is not successfully decoded at the base station, transmitting a first UL scheduling downlink control information (DCI) comprising a first hybrid automatic repeat request (HARQ) process identifier (ID) associated with the UL-SCH (HPIUL-SCH) based on the second resources for the second UL channel, and a second UL scheduling DCI comprising a second HARQ process ID associated with the UEIBR (HPIUEIBR) based on the HPIUL-SCH and a HARQ process ID offset,wherein each of the first UL scheduling DCI and the second UL scheduling DCI comprises a cyclic redundancy check scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) configured for the UE, a new data indicator (NDI) field set to one, a channel state information (CSI) request field set to all zeros, and a redundancy version (RV) field set to all zeros; andwherein receiving, from the UE, the retransmission comprises receiving a first retransmission comprising the UL-SCH on a first UL resource indicated by the first UL scheduling DCI and receiving a second retransmission comprising the UEIBR on a second UL resource indicated by the second UL scheduling DCI.47.The method of claim 46, wherein the HPIUL-SCH = floor (i / P) modulo (S) , where P is a periodicity of a transmission occasion for the second UL channel, i is a first symbol index within the periodicity P, and S is a total number of HARQ processes for a configured grant.48.An apparatus comprising means to perform the method of any of claim 1 to claim 47.49.A computer-readable media comprising instructions to cause an electronic device, upon execution of the instructions by one or more processors of the electronic device, to perform the method of any of claim 1 to claim 47.50.An apparatus comprising logic, modules, or circuitry to perform the method of any of claim 1 to claim 47.51.A baseband processor for a user equipment (UE) that is configured to cause the UE to perform one or more elements of any of claim 1 to claim 24.52.A baseband processor for a base station that is configured to cause the base station to perform one or more elements of any of claim 25 to claim 47.
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