Managing UCI on pucch for multiple CRI based reporting in a wireless communication system

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments disclosed herein provide a system and method for managing UCI for hybrid beamforming on a PUCCH in a wireless communication system. The method may include receiving, by a UE (102), a CSI report configuration from a network apparatus. The CSI report configuration may include configuration information associated with multiple CRI based hybrid beamforming. The method may include determining a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration. The method may include generating a UCI packing information based on a CMR associated with the CSI report for multiple CRI reporting upon splitting the UCI that is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.

Description

MANAGING UCI ON PUCCH FOR MULTIPLE CRI BASED REPORTING IN A WIRELESS COMMUNICATION SYSTEM

[0001] The present disclosure is related to the field of wireless communication. More particularly, the present disclosure is related to a method and system for managing uplink control information (UCI) for hybrid beamforming on a physical uplink control channel (PUCCH) in a wireless communication system.

[0002] 5G mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in "Sub 6GHz" bands such as 3.5GHz, but also in "Above 6GHz" bands referred to as mmWave including 28GHz and 39GHz. In addition, it has been considered to implement 6G mobile communication technologies (referred to as Beyond 5G systems) in terahertz bands (for example, 95GHz to 3THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies.

[0003] At the beginning of the development of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive MIMO for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BWP (BandWidth Part), new channel coding methods such as a LDPC (Low Density Parity Check) code for large amount of data transmission and a polar code for highly reliable transmission of control information, L2 pre-processing, and network slicing for providing a dedicated network specialized to a specific service.

[0004] Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as V2X (Vehicle-to-everything) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, NR-U (New Radio Unlicensed) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, NR UE (User Equipment) Power Saving, Non-Terrestrial Network (NTN) which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning.

[0005] Moreover, there has been ongoing standardization in air interface architecture / protocol regarding technologies such as Industrial Internet of Things (IIoT) for supporting new services through interworking and convergence with other industries, IAB (Integrated Access and Backhaul) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and DAPS (Dual Active Protocol Stack) handover, and two-step random access for simplifying random access procedures (2-step RACH for NR). There also has been ongoing standardization in system architecture / service regarding a 5G baseline architecture (for example, service based architecture or service based interface) for combining Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) for receiving services based on UE positions.

[0006] As 5G mobile communication systems are commercialized, connected devices that have been exponentially increasing will be connected to communication networks, and it is accordingly expected that enhanced functions and performances of 5G mobile communication systems and integrated operations of connected devices will be necessary. To this end, new research is scheduled in connection with eXtended Reality (XR) for efficiently supporting AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality) and the like, 5G performance improvement and complexity reduction by utilizing Artificial Intelligence (AI) and Machine Learning (ML), AI service support, metaverse service support, and drone communication.

[0007] Furthermore, such development of 5G mobile communication systems will serve as a basis for developing not only new waveforms for providing coverage in terahertz bands of 6G mobile communication technologies, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of terahertz band signals, high-dimensional space multiplexing technology using OAM (Orbital Angular Momentum), and RIS (Reconfigurable Intelligent Surface), but also full-duplex technology for increasing frequency efficiency of 6G mobile communication technologies and improving system networks, AI-based communication technology for implementing system optimization by utilizing satellites and AI (Artificial Intelligence) from the design stage and internalizing end-to-end AI support functions, and next-generation distributed computing technology for implementing services at levels of complexity exceeding the limit of UE operation capability by utilizing ultra-high-performance communication and computing resources.

[0008] The principal object of the embodiments herein is to provide a system and method for uplink control information on PUCCH for multiple CRI based reporting for hybrid beamforming in NR.

[0009] In an aspect, the objectives are achieved by providing a method for managing UCI for hybrid beamforming on a PUCCH in a wireless communication system. The method may include receiving a CSI report configuration from a network apparatus. The CSI report configuration may comprise configuration information associated with multiple CRI based hybrid beamforming. The method may include determining a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration. The method may include generating a UCI packing information based on a CMR associated with the CSI report for multiple CRI reporting based on the CSI report configuration. The UCI packing information may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.

[0010] In an aspect, the objectives are achieved by providing a user equipment (UE) for managing UCI for hybrid beamforming on a PUCCH in a wireless communication system. The UE may include memory, at least one processor, and a UCI management controller communicatively coupled to the memory and the at least one processor. The UCI management controller may receive a CSI report configuration from a network apparatus. The CSI report configuration may comprise configuration information associated with multiple CRI based hybrid beamforming. The UCI management controller may determine a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration. The UCI management controller may generate a UCI packing information based on a CMR associated with the CSI report for multiple CRI reporting based on the CSI configuration information. The UCI packing information may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.

[0011] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications can be made within the scope of the embodiments herein without departing from the scope thereof, and the embodiments herein include all such modifications.

[0012] These and other features, aspects, and advantages of the present embodiments are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:

[0013] Fig. 1 is a block diagram that illustrates a schematic of a UE implemented to carry out the disclosed subject matter according to an embodiment as disclosed herein.

[0014] Fig. 2 is a flow diagram that illustrates a method for managing UCI for hybrid beamforming on a PUCCH in a wireless communication system according to an embodiment as disclosed herein.

[0015] The next generation mobile wireless communication system Fifth Generation (5G) or NR support a diverse set of use cases and deployment scenarios. These cases include deployment at both low frequencies (100s of MHz), similar to Long Term Evolution (LTE) today, and very high frequencies (mm waves in the tens of GHz) and newly introduced band FR3. Similar to the LTE, NR uses Orthogonal Frequency-Division Multiplexing (OFDM) in both the downlink (e.g., from a network node, gNB, eNB, or base station, to a user equipment (UE)). In the uplink (e.g., from UE to gNB), both Discrete Fourier Transform (DFT)-spread OFDM and OFDM will be supported.

[0016] Downlink transmissions are dynamically scheduled, e.g., in each sub frame the gNB transmits Downlink Control Information (DCI) about which UE data is to be transmitted to and which resource blocks in the current downlink sub frame the data is transmitted on. This control signalling is typically transmitted in the first one or two OFDM symbols in each sub frame in NR. The control information is carried on Physical Control Channel (PDCCH) and data is carried on Physical Downlink Shared Channel (PDSCH). A UE first detects and decodes PDCCH and if a PDCCH is decoded successfully, it decodes the corresponding PDSCH based on the decoded control information in the PDCCH. Uplink data transmissions are also dynamically scheduled using PDCCH. Similar to downlink, a UE first decodes uplink grants in PDCCH and then transmits data over the Physical Uplink Shared Channel (PUSCH) based on the decoded control information in the uplink grant such as modulation order, coding rate, uplink resource allocation, and etc. In addition to the PUSCH, PUCCH is also supported in NR to carry uplink control information (UCI) such as HARQ (Hybrid Automatic Repeat Request) related Acknowledgement (ACK), Negative Acknowledgement (NACK), or Channel State Information (CSI) feedback. In NR, a reference signal is transmitted from each antenna port at the gNB for downlink channel estimation at a UE.

[0017] In NR phase MIMO, to address the issue of coverage, higher downlink spectrum efficiency, larger antenna arrays for single transmission point transmissions with an increased number of antennas have an increased interest in the industry. In current specifications, the support for such large antenna arrays with large number of CSI-RS ports for CSI measurement and reporting is limited. With large number of ports, to increase the Multi user- MIMO scheduling opportunities, Multiple CRI based hybrid beamforming has been proposed for enhancement. Current UCI design is inadequate to support multiple CRI based report for CSI type I and Type II-r16. In order to support this, enhancements have been proposed in this patent to legacy UCI design.

[0018] Thus, it is desired to address the above-mentioned disadvantages, issues, or other shortcomings or at least provide a useful alternative.

[0019] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments can be combined with one or more other embodiments to form new embodiments. The term "or" as used herein, refers to a non-exclusive or, unless otherwise indicated. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein can be practiced and to further enable those skilled in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

[0020] As is traditional in the field, embodiments can be described and illustrated in terms of blocks which carry out a described function or functions.　These blocks, which can be referred to herein as managers, units, modules, hardware components or the like, are physically implemented by analog and / or digital circuits such as logic gates, integrated circuits, microprocessors, microcontrollers, memory circuits, passive electronic components, active electronic components, optical components, hardwired circuits and the like, and may optionally be driven by firmware and software. The circuits may, for example, be embodied in one or more semiconductor chips, or on substrate supports such as printed circuit boards and the like.　The circuits constituting a block can be implemented by dedicated hardware, or by a processor (e.g., one or more programmed microprocessors and associated circuitry), or by a combination of dedicated hardware to perform some functions of the block and a processor to perform other functions of the block.　Each block of the embodiments can be physically separated into two or more interacting and discrete blocks without departing from the scope of the disclosure.　Likewise, the blocks of the embodiments can be physically combined into more complex blocks without departing from the scope of the disclosure.

[0021] Fig. 1 is a block diagram that illustrates a schematic of a UE (102) implemented to carry out the disclosed subject matter according to an embodiment as disclosed herein. Examples of the UE (102) can include, but are not limited to, Consumer Electronics (such as Mobile Phones and Smartphones), Tablets, Wearable Devices, Computing Devices (such as Laptops, Notebooks, Desktops, Workstations, etc.), IoT Devices, Automotive Systems (such as connected cars, Autonomous Vehicles, Vehicle-to-Everything (V2X) communication devices, etc.), Enterprise Devices such as robotics, Specialized Equipment (such as Medical Devices, Public Safety Devices, etc.), Media Devices (such as Gaming Consoles, Streaming Devices, etc.).

[0022] In an embodiment, in Fig. 1, the UE (102) may include a processor (104), memory (106), an I / O interface (108), and a UCI management controller(110) coupled to the processor (104) and the memory (106). The components are explained in further detail below.

[0023] The processor (104) may communicate with the memory (106), the I / O interface (108), and the UCI management controller (110). The processor (104) may be configured to execute instructions stored in the memory (106) and to perform various processes. The processor (104) may include one or a plurality of processors, may be a general-purpose processor such as a central processing unit (CPU), an application processor (AP), or the like, a graphics-only processing unit such as a graphics processing unit (GPU), a visual processing unit (VPU), and / or an Artificial Intelligence (AI) dedicated processor such as a neural processing unit (NPU).

[0024] The memory (106) may include storage locations to be addressable through the processor (104). The memory (106) may include CSI report configuration received from a network apparatus. The memory (106) is not limited to a volatile memory and / or a non-volatile memory. Further, the memory (106) may include a plurality of computer-readable storage media. The memory (106) may include non-volatile storage elements. For example, non-volatile storage elements may include magnetic hard disks, optical disks, floppy disks, flash memories, or forms of electrically programmable memories (EPROM) or electrically erasable and programmable (EEPROM) memories.

[0025] The I / O interface (108) may transmit the information between the memory (106) and external peripheral devices. The peripheral devices may be the input-output devices associated with the UE (102). Further, the UCI management controller(110) may communicate with the I / O interface (108) and the memory (106). The UCI management controller(110) may be coupled to the memory (106) and the processor (104). This coupling may allow for efficient data transfer and communication between the components, ensuring that the UCI management controller(110) can managing UCI for hybrid beamforming on a PUCCH.

[0026] The UCI management controller (110) may be an innovative integrated circuit that is implemented in the UE (102). In an embodiment, the structure of such innovative integrated circuit may include a multi-core architecture that enables managing UCI for hybrid beamforming on a PUCCH. Each core may be optimized for specific tasks, such as receiving a CSI report configuration, determining frequency granularity of a CSI report, determining a CSI feedback type, determining a periodicity of CSI reports, and splitting the UCI into a part one UCI and a part two UCI. The innovative integrated circuit for the above-mentioned points may be made of a combination of analog and digital components designed to managing UCI for hybrid beamforming on a PUCCH. The analog components may include a low-noise amplifier and a high-precision analog-to-digital converter to ensure accurate signal processing. The digital components may consist of a microcontroller unit (MCU) and a digital signal processor (DSP) that work in tandem to manage UCI for hybrid beamforming on a PUCCH.

[0027] The next generation mobile wireless communication system Fifth Generation (5G) or New Radio (NR) support a diverse set of use cases and deployment scenarios.

[0028] These cases may include deployment at both low frequencies (100s of MHz) , similar to LTE today , and very high frequencies (mm waves in the tens of GHz) and newly introduced band FR3.

[0029] Similar to LTE, NR uses OFDM in both the downlink (e.g., from a network node, gNB, eNB, or base station, to the UE (102).

[0030] In the uplink (e.g., from the UE (102) to gNB), both DFT-spread OFDM and OFDM will be supported.

[0031] Downlink transmissions may be dynamically scheduled, e.g., in each subframe the gNB transmits downlink control information (DCI) about which UE data is to be transmitted to and which resource blocks in the current downlink subframe the data is transmitted on.

[0032] This control signalling may be typically transmitted in the first one or two OFDM symbols in each subframe in NR.

[0033] The control information may be carried on Physical Control Channel (PDCCH) and data is carried on Physical Downlink Shared Channel (PDSCH).

[0034] The UE (102) may first detect and decode PDCCH and if a PDCCH is decoded successfully, it may decode the corresponding PDSCH based on the decoded control information in the PDCCH.

[0035] Uplink data transmissions may also be dynamically scheduled using PDCCH. Similar to downlink, the UE (102) may first decode uplink grants in PDCCH and then transmit data over the PUSCH based the decoded control information in the uplink grant such as modulation order, coding rate, uplink resource allocation, and etc.

[0036] In addition to PUSCH, PUCCH may also be supported in NR to carry uplink control information (UCI) such as HARQ (Hybrid Auto mastic Repeat Request) related Acknowledgement (ACK), Negative Acknowledgement (NACK), or Channel State Information (CSI) feedback.

[0037] In NR, a reference signal may be transmitted from each antenna port at the gNB for downlink channel estimation at the UE (102).

[0038] Reference signals for downlink channel estimation may be commonly referred to as channel state information reference signal (CSI-RS). For N antenna ports, there will be N CSI-RS signals, each associated with one antenna port.

[0039] By measuring on CSI-RS, the UE (102) can estimate the effective channel the CSI-RS is traversing including the radio propagation channel and antenna gains at both the gNB and the UE (102).

[0040] Based on type I configuration that is whether Precoding Matrix Indicator (PMI) report is wideband or subband different table is used for Encoding. In Legacy CRI based reporting, only single CRI is reported. To extend UCI design for multiple CRI, the tables has been extended to support multiple CRIs and each CRI having RI, PMI, and CQI. When the UE (102) is configured to report CRI-RI-CQI mode and cqi-FormatIndicator=widebandCQI or PMI is set to WB PMI and CQI is WB CQI, the following enhancement are proposed to legacy table. The highlighted portion indicates addition of CSI fields to CSI report# n where n in integer value. Max value of M, the number of reported CRI, is 4 for type I and 2 type II configured by gNB by higher layer parameter.

[0041] The UE (102) can estimate the N_Rx Х N_Tx effective channel matrix H and thus the channel Rank indicator (RI), Precoding Matrix Indicator (PMI), and Channel Quality Indicator (CQI). A CSI-RS signal may be transmitted on a set of time frequency Resource Elements (REs) associated with an antenna port. For channel estimation over a system bandwidth, the CSI-RS may be typically transmitted over the whole system bandwidth. The set of REs used for CSI-RS transmission may be referred to as CSI-RS resource. From the UE (102) point of view, an antenna port may be equivalent to a CSI-RS that the UE (102) shall use to measure the channel. In NR, two types of CSI feedbacks will be supported for closed-loop transmission, e.g., Type I and Type II. Type I may be codebook based PMI feedback with normal resolution targeting Single User MIMO (SU MIMO) transmissions. Type II may be an enhanced CSI feedback with higher resolution targeting multi-user MIMO (MU - MIMO) transmissions.

[0042] For both types of codebook, the PMI for each subband is split up into two indices, i_1 and i_2. i_1 may be reported on a wideband basis (e.g., it is the same for all subbands) while i_2 may be reported per subband (if subband reporting is configured). In Type I CSI reporting, the bit width of i_1, may be on the order of ~ 10 bits and the bit width of i_2, may be up to 4 bits, which correspond to a relatively low overhead. For Type II reporting, it can be very high compared to type I. In NR, in addition to periodic and aperiodic CSI reporting as in LTE, semi-persistent CSI reporting may also be supported. The three modes of CSI reporting will be supported in NR as follows:

[0043] - Periodic CSI Reporting: CSI may be reported periodically by the UE (102). Parameters such as periodicity and sub frame offset may be configured semi-statically, by higher layer signalling from the gNB to the UE (102).

[0044] - Aperiodic CSI Reporting: This mode of CSI reporting may involve a single-shot (e.g., one time) CSI report by the UE (102), which is dynamically triggered by the gNB, e.g., by the DCI in PDCCH. Some of the parameters related to the configuration of the aperiodic CSI report may be semi-statically configured from the gNB to the UE (102) but the triggering is dynamic.

[0045] - Semi-Persistent CSI Reporting: similar to periodic CSI reporting, semi-persistent CSI reporting periodicity and subframe offset which can be semi statically configured by the gNB to the UE (102). However, a dynamic trigger from gNB to the UE (102) can be needed to allow the UE (102) to begin semi - persistent CSI reporting. In some cases, a dynamic trigger from gNB to the UE (102) can be needed to command the UE (102) to stop the semi - persistent transmission of CSI reports.

[0046] It has been agreed that in NR, the UE (102) can be configured with N = 1 CSI reporting settings, M≥1 Resource settings, and 1 CSI measurement setting, where the CSI measurement setting includes L 1 links and value of L may depend on the capability of the UE (102). At least the following configuration parameters may be signaled via RRC at least for CSI acquisition.

[0047] In each CSI reporting setting, at least: reported CSI parameter (s), CSI Type (I or II) if reported, code book configuration including codebook subset restriction, time-domain behaviour, frequency granularity for CQI and PMI, measurement restriction configurations.

[0048] In each Resource setting A configuration of S≥1 CSI-RS resource set (S), A configuration of K_s≥1 CSI-RS resources for each set s, including at least: mapping to REs, the number of ports, time-domain behavior, etc.

[0049] Like in LTE, there is a need for uplink L1 / L2 control signalling to support data transmission on downlink and uplink transport channels. Uplink L1 / L2 control signalling consists of:

[0050] - Hybrid-ARQ acknowledgments for received DL-SCH transport blocks;

[0051] - Channel-state information (CSI) related to the downlink channel conditions, used to assist downlink scheduling, including multi-antenna and beamforming schemes; and

[0052] - Scheduling requests, indicating that a device needs uplink resources for UL-SCH transmission.

[0053] UCI bit structure for reporting on PUCCH is as follows. If cqi-BitsPerSubband is configured, this may apply by taking Subband CQI as Subband differential CQI and replacing the corresponding number of bits 2 by 4. The table used for encoding CSI feedback type I is

[0054] Table 6.3.1.1.2-1: PMI of codebookType=typeI-SinglePanel

[0055]

[0056] The table used for encoding CRI, RI, LI, CQI is given as follows: Table 6.3.1.1.2-3: RI, LI, CQI, and CRI ofcodebookType=typeI-SinglePanel, orreportQuantityset to 'cri-RI-CQI', or 1 CSI-RS port

[0057] Table 6.3.1.1.2-3: RI, LI, CQI, and CRI of codebookType=typeI-SinglePanel, or reportQuantity set to 'cri-RI-CQI', or 1 CSI-RS port

[0058]

[0059] in Table 6.3.1.1.2-3 may be the number of allowed rank indicator values, may be the value of the rank. The value of K_s^(CSI-RS) may be the number of CSI-RS resources in the corresponding resource set. The values of the rank indicator field may be mapped to allowed rank indicator values with increasing order, where '0' may be mapped to the smallest allowed rank indicator value. For higher layer parameter reportQuantity set to 'cri-RI-CQI', the values of the rank indicator field may be mapped to rank indicator values with increasing order, where '0' may be mapped to rank-1.

[0060] In NR, it has been agreed that CSI in UCI when transmitted on PUCCH may be split up into two separately encoded parts. Where the first CSI part may be of a known payload size (and typically small), containing at least RI and CQI, and where the second CSI part may have a variable payload size and contain the remaining CSI parameters such as PMI. Based on decoding the first CSI part, the UE (102) may know the payload size of the second CSI part and can decode it.

[0061] One issue with Type II CSI reporting may be that the payload can vary drastically depending rank selected by the UE (102). As the gNB is unaware of the selected RI when allocating the PUCCH resources, it could potentially allocate a too small resource so that the CSI payload will not fit. Therefore, it was decided to introduce a mechanism for how the UE should handle such cases.

[0062] Separately encoded parts of a CSI report may have different transmission priority. Part 1 (used to identify the number of information bits in part 2) may have higher priority. For Release 19 (NR Phase 5 MIMO), CRI based reporting was agreed for more than one resource for better feedback and scheduling of the UE (102). I legacy only CSI Type I feedback was agreed for CRI based reporting. And also up to one resource feedback out of multiple resources was adopted.

[0063] For CRI based Reporting, when more than one NZP CSI-RS resources are contained in the selected NZP CSI-RS resource set for channel measurement, a multiple CSI-RS resource indicator (CRI) may be reported by the UE (102) to indicate to the gNB about the Multiple selected NZP CSI-RS resource in the resource set, together with RI, PMI and CQI associated with the each selected NZP CSI-RS resource. The number of CRI and their associated RI, PMI and CQI to be reported may be configured by gNB by higher layer parameter.

[0064] For Multiple CRI based reporting for Hybrid Beamforming in release 19, both Type I and Type II-r16 has been agreed as of RAN1 meeting #116b. For multiple CRI reporting, UCI packing information also needs to be updated for multiple RI, PMI and CQIs. In one of the agreements in RAN1 meeting #116b, there was discussion on whether to prioritize some resources that is Mr Resources out of M resources.

[0065] Based on type of CSI configuration that is Periodic, Semi persistent and Aperiodic and Reporting mode, the UE (102) can send CSI feedback data on PUCCH. CSI feedback Type I and type II-r15 wideband Report is send on PUCCH.

[0066] In NR phase MIMO, to address issue the coverage, higher downlink spectrum efficiency, larger antenna arrays for single transmission point transmissions with an increased number of antennas have an increased interest in the industry. In current specifications, the support for such large antenna arrays with large number of CSI-RS ports for CSI measurement and reporting is limited. With large number of ports, to increase the Multi user- MIMO scheduling opportunities, Multiple CRI based hybrid beamforming has been proposed for enhancement. Current UCI design is inadequate to support multiple CRI based report for CSI type I and Type II-r16. In order to support this, enhancements have been proposed in this disclosure to legacy UCI design.

[0067] UCI Design for CSI Reporting on PUCCH

[0068] Based on type I configuration that is whether PMI report is wideband or subband different table is used for Encoding. In Legacy CRI based reporting, only single CRI is reported. To extend UCI design for multiple CRI, following tables has been extended to support multiple CRIs and each CRI having RI, PMI, and CQI.

[0069] Within Each CSI Report, or UCI field order or across reports Multiple CRI are ordered in order set up as follows:

[0070] - In an embodiment, it may be configured by RRC

[0071] - In an embodiment, the order may be increasing number of CSI resource number

[0072] - In an embodiment, it may be configured by MAC-CE or

[0073] - In an embodiment, with new field of size . This may be field contains order set by RRC / MAC-CE or DCI, or configured by RRC as codepoint and is indicated by DCI / MAC-CE by gNB to the UE (102)

[0074] - In an embodiment, the order may be set up by the UE (102) from strongest to weakest CRI

[0075] - In an embodiment, the order may be configured by gNB to the UE (102) from strongest to weakest CRIs

[0076] - In an embodiment, of Mr Resources with higher priority may be configured, only MrResource order may be configured, with codepoint. The field is this case, is bits. M-Mr resources may be reported in CSI part 2 WB instead of CSI part 1 as considered in above embodiments.

[0077] In an embodiment, Whole M order may be set by gNB by to the UE (102) by using higher layer parameter. The length of bits for his field may be given as .

[0078] Above order set up may apply to an embodiment below.

[0079] When the UE (102) is configured to report CRI-RI-CQI mode and cqi-FormatIndicator=widebandCQI or PMI is set to WB PMI and CQI is WB CQI, the following enhancement are proposed to legacy table. The highlighted portion may indicate addition of CSI fields to CSI report# n where n in integer value. Max value of M, the number of reported CRI, is 4 for type I and 2 type II configured by gNB by higher layer parameter.

[0080] Table 6.3.1.1.2-7: Mapping order of CSI fields of one CSI report,

[0081] pmi-FormatIndicator=widebandPMIandcqi-FormatIndicator=widebandCQIorreportQuantity

[0082] set to 'cri-RI-CQI' andcqi-FormatIndicator=widebandCQI

[0083]

[0084]

[0085] In an embodiment, for WB reporting with single CSI report, is shown in table below, where within in each report e.g., CSI report #n, new sub partition may be added CSI report #n, Mth CRI, Where the number of reported CRI, is 4 for type I and 2 type II configured by gNB by higher layer parameter.

[0086] Table 6.3.1.1.2-7: Mapping order of CSI fields of one CSI report,

[0087] pmi-FormatIndicator=widebandPMIandcqi-FormatIndicator=widebandCQIorreportQuantity

[0088] set to 'cri-RI-CQI' andcqi-FormatIndicator=widebandCQI

[0089]

[0090] From Mapping from CSI report #n, Mth CRI to UCI sequence is given in Table below.

[0091] Table 6.3.1.1.2-12: Mapping order of CSI reports to UCI bit sequence , without two-part CSI report(s)

[0092]

[0093] For Type I (Subband PMI and Subband CQI)

[0094] When the UE (102) is configured by gNB to report PMI set as subbandPMI or if CQI is set as SubbbandCQI, the UE (102) will report CSI feedback using the table below. The UE (102) will form two part of CSI as CSI part1 and CSI part 2. CSI part1 may contain CRI RI, WB CQI, SB differential CQI and indicator of non-zero WB amplitudes as shown below.

[0095] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi FormatIndicator=subbandCQI

[0096]

[0097] In an embodiment, for SB reporting for CSI part 1, is shown in table below, where within in each report e.g., CSI report #n, new sub partition is added CSI report #n, Mth CRI. Where M {0, 1, M-1}.

[0098] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0099]

[0100] In an embodiment, of CSI part 1, only 1ststrongest / or any CRI is reported in CSI part1 and rest K-1 CRIs are put in CSI part 2 WB.

[0101] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi FormatIndicator=subbandCQI

[0102]

[0103] In an embodiment, only 1 WB CQI for the 1stTransport Block (TB) and 1 SB differential / normal TB may be reported in CSI Part1 and remaining M-1 WB CQI for the 1stTB and M-1 SB differential / Normal CQIs may be reported in CSI part 2 WB.

[0104] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi FormatIndicator=subbandCQI

[0105]

[0106] In an embodiment, only Mr WB CQI for the 1stTransport Block (TB) and Mr SB differential / normal TB may be reported in CSI Part1 and remaining M-Mr WB CQI for the 1stTB and M-1 SB differential / Normal CQIs may be reported in CSI part 2 WB.

[0107] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi FormatIndicator=subbandCQI

[0108]

[0109]

[0110] For CSI Part 2 WB, Legacy single CRI wideband CQI for 2nd TB, layer indicator, PMI WB X1and X2may be extended to multiple CRI as shown in table below.

[0111] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0112]

[0113] In an embodiment, for CSI part 2 WB reporting, some of the resources (M-Mr) resources with RI, PMI, and CQI may be present CSI part 2 WB. M and Mrboth may be RRC configured value which indicates number of CRI to be reported and Mrout of M may be reported with high priority out of the rest of resources M to be reported.

[0114] - In an embodiment, only MrResource order may be configured, with codepoint. The field is this case, is bits. M-Mr resources may be reported in CSI part 2 WB instead of CSI part 1 as considered in an above embodiment.

[0115] The following table covers this behavior.

[0116] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0117]

[0118]

[0119] In an embodiment, only order of M-Mr resources which are reported in CSI part 2 WB, may be decode 1stin CSI part 2, where K =M-Mr+1.

[0120] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0121]

[0122]

[0123] In an embodiment, for SB reporting for CSI part 2 WB, is shown in table below, where within in each report e.g., CSI report #n, new sub partition is added CSI report #n, Mth CRI. Where M {0, 1, M-1}.

[0124] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0125]

[0126] For CSI part 2 SB, the fields which have been added for each CRI may be subbband differential CQI for the second TB for all even subbbands and PMI information X_2 for even subband followed by subbband differential CQI for the second TB for all odd subbbands and PMI information X_2 for odd subband as shown in table below. The order may be same as legacy and this extension may be after legacy fields.

[0127] Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,pmi-FormatIndicator=subbandPMIorcqi FormatIndicator=subbandCQI

[0128]

[0129]

[0130] In an embodiment, for CSI part 2 SB, subband differential CQI for 2nd Tb for even bands and PMI information X_2 for even subband for all CRIs may be in increasing order and then, subband differential CQI for 2nd Tb for odd subbands and PMI information X_2 for odd subband clubbed together after even counterpart.

[0131] Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0132]

[0133]

[0134] In an embodiment, for SB reporting for CSI part 2 SB, is shown in table below, where within in each report e.g., CSI report #n, new sub partition may be added CSI report #n, Mth CRI. Where .

[0135] Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0136]

[0137] For Mapping CSI reports to UCI bit sequence the following improvements to legacy tables has been proposed for Multiple CRI based reporting.

[0138] Table 6.3.1.1.2-13: Mapping order of CSI reports to UCI bit sequence , with two-part CSI report(s)

[0139]

[0140] Table 6.3.1.1.2-14: Mappin g order of CSI reports to UCI bit sequence , with two-part CSI report(s)

[0141]

[0142]

[0143] In an embodiment, of UCI bit sequence to CSI report for CSI part 2 is given as below. Here CSI report 1 may be Combined consisting of CSI report part 2 WB, CSI report part 2 SB instead of Combining CSI part 2 WB of all CSI reports as legacy.

[0144] Table 6.3.1.1.2-14: Mapping order of CSI reports to UCI bit sequence , with two-part CSI report(s)

[0145]

[0146]

[0147] Table 6.3.1.1.2-7: Mapping order of CSI fields of one CSI report, pmi-FormatIndicator=widebandPMI and cqi-FormatIndicator=widebandCQI or reportQuantity set to 'cri-RI-CQI' and cqi-FormatIndicator=widebandCQI

[0148]

[0149]

[0150] In an embodiment, Mapping order of CSI fields of one CSI report is shown in below table:

[0151] Table 6.3.1.1.2-7: Mapping order of CSI fields of one CSI report,pmi-FormatIndicator=widebandPMIandcqi-FormatIndicator=widebandCQIorreportQuantityset to 'cri-RI-CQI' andcqi-FormatIndicator=widebandCQI

[0152]

[0153]

[0154] For Type I (Subband PMI and Subband CQI) are described as follows:

[0155] If the UE (102) is configured by gNB to report PMI set as subbandPMI or if CQI is set as SubbandCQI, the UE (102) will report CSI feedback using the table below. The UE (102) will form two part of CSI as CSI part1 and CSI part 2. CSI part1 may contain CRI RI, WB CQI, SB differential CQI and indicator of non-zero WB amplitudes as shown below as non-highlighted part in table below. Highlighted part may be extension of legacy table CSI part 1 for multiple CRI reporting.

[0156] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0157]

[0158]

[0159] In an embodiment, Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQIis shown below:

[0160] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0161]

[0162]

[0163] In an embodiment, Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQIis shown below:

[0164] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0165]

[0166]

[0167] In an embodiment, mapping order of CSI fields of one CSI report, CSI part 2 wideband, pmi-FormatIndicator= subbandPMI or cqi-FormatIndicator=subbandCQI is shown below:

[0168] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0169]

[0170]

[0171] For CSI part 2 SB, the fields which have been added for each CRI are subband differential CQI for the second TB for all even subbands and PMI information for even subband followed by subband differential CQI for the second TB for all odd subbands and PMI information for odd subband as shown in table below. The order is same as legacy and this extension is after legacy fields.

[0172] Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,

[0173] pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0174]

[0175]

[0176] In an embodiment, gNB can configure the UE (102) with higher priority resources to be reported. In such cases, in one of embodiment, the UE (102) does not report higher priority resource CRIs ( ) and in an embodiment, irrespective of configuration of Resources the UE (102) always report with same UCI payload. This helps in unified Design. Those Resources can be sent configured to be Periodic, Semi-persistent, or Aperiodic with CSI-Aperiodictriggerlist. Also Report can be configured to Periodic, Semi-persistent, or aperiodic depending on type CSI Configured. For Aperiodic CSI, only aperiodic reporting can be configured.

[0177] Resources can be by gNB to the UE (102) by RRC layer signalling with Bitmap of Size or with Combinatorial coding can be used with Log2( ) bits to configure the order or within the the priority is by CSI resource number index. The order of priority can be lowest to highest of Resource number that is lowest CSI resource number has higher priority or from high to low of Resource index number that is highest CSI resource index number has Highest Priority among resources.

[0178] The reporting of CRIs can be in with bits when Resources are configured or just bits irrespective of Resources are configured or not.

[0179] If Resources are configured, only CRIs need to be reported with or bits. The Mapping of (RI, PMI, and CQI) is important for decoding since CRI is absent for Resources.

[0180] In an embodiment, Mapping order of CSI fields of one CSI report,pmi-FormatIndicator=widebandPMIandcqi-FormatIndicator=widebandCQIorreportQuantityset to 'cri-RI-CQI' andcqi-FormatIndicator=widebandCQIis shown below:

[0181] For CSI part 1, when CSI part is reported in 2 parts.

[0182] In an embodiment, Mapping order of CSI fields of one CSI report, CSI part 1, pmi-FormatIndicator= subbandPMI or cqi-FormatIndicator=subbandCQI is shown below:

[0183] In an embodiment, Value of K can be , or k can be +1 is show below:

[0184] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0185]

[0186] In an embodiment, Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQIis shown below:

[0187] Table 6.3.1.1.2-9: Mapping order of CSI fields of one CSI report, CSI part 1,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0188] In an embodiment, refer to the below table.

[0189]

[0190]

[0191] In an embodiment, refer to the below table:

[0192]

[0193]

[0194] In an embodiment, refer to the below table:

[0195]

[0196]

[0197] For CSI Part 2 WB, Legacy single CRI wideband CQI for 2ndTB, layer indicator, PMI WB and are extended to multiple CRI as shown in table below.

[0198] Table 6.3.1.1.2-10: Mapping order of CSI fields of one CSI report, CSI part 2 wideband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0199]

[0200]

[0201] In an embodiment, refer to the below table:

[0202]

[0203]

[0204] In an embodiment, refer to the below table:

[0205]

[0206]

[0207] In an embodiment, refer to the below table:

[0208]

[0209]

[0210] For CSI part 2 WB, in legacy, subband CQI for even and odd was separated and su band information of PMI was reported for even subbands and odd subbands as shown in below:

[0211]

[0212]

[0213] In an embodiment, refer to the below table:

[0214] Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0215]

[0216]

[0217]

[0218] In an embodiment, Table 6.3.1.1.2-11: Mapping order of CSI fields of one CSI report, CSI part 2 subband,pmi-FormatIndicator=subbandPMIorcqi-FormatIndicator=subbandCQI

[0219]

[0220]

[0221]

[0222] Fig. 2 is a flow diagram that illustrates a method for managing UCI for hybrid beamforming on a PUCCH in a wireless communication system according to an embodiment as disclosed herein. The method may include operations (202-206). Each operation is explained in further detail below.

[0223] At operation (202), the UE (102) may receive a CSI report configuration from a network apparatus. The network apparatus may include various hardware and software components that facilitate communication between user equipment and network infrastructure. Examples of the network apparatus can include, but is not limited to Base Stations (such as macro cells, small cells, femtocells, picocells) for wireless communication, Antennas and RF Units (e.g., MIMO, beamforming) to enhance signal coverage and data throughput, Core Network Equipment (e.g., MMEs, S-GWs, P-GWs in 4G; AMFs, UPFs in 5G) for data routing, mobility, and session control, Network Function Virtualization (NFV) and Software-Defined Networking (SDN) for dynamic resource allocation and scalability, Edge Computing Nodes (e.g., MEC servers) for low-latency processing,　Backhaul and Transport Equipment (e.g., fiber-optic links, microwave relays, Ethernet switches) to connect base stations to the core network, Network Management Systems (NMS) and Operation Support Systems (OSS) for network configuration, fault management, and optimization, Radio Network Controllers (RNCs) in 3G, Distributed Units (DUs), and Centralized Units (CUs) in 5G, Network Slicing Components for virtualized resource allocation, Security elements (e.g., Firewalls, IDS, AAA Servers) for secure communication.

[0224] The CSI report configuration may include configuration information associated with multiple CRI based hybrid beamforming. Hybrid beamforming may be a method that combines analog and digital beamforming to strike a balance between performance and hardware complexity. The analog beamforming may control the phase and amplitude and the digital beamforming may be used for baseband processing for signal manipulation.

[0225] At operation (204), the UE (102) may determine a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration. The frequency granularity may refer to how detailed the CSI feedback is across a frequency domain. A higher frequency granularity may provide a more accurate channel info per frequency. The CSI feedback may include a type I feedback and a type II feedback. The type I feedback may be a codebook-based feedback and the type II feedback may be a non-codebook based feedback. The periodicity of the CSI reports may refer to how often the UE (102) reports CSI back to the network apparatus. For instance, the periodicity can include periodic CSI reporting, aperiodic CSI reporting, and semi-persistent CSI reporting.

[0226] At operation (206), the UE (102) may generate a UCI packing information based on a codebook mode reporting (CMR) associated with the CSI report for multiple CRI reporting upon splitting the UCI. The UCI packing information may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.

[0227] In an embodiment, a method for managing uplink control information (UCI) for hybrid beamforming on a physical uplink control channel (PUCCH) in a wireless communication system is provided.

[0228] In an embodiment, the method, wherein generating, by the UE, the UCI packing information based on the CMR associated with the CSI report may include determining, by the UE, a CSI report configuration of type wideband CQI / PMI reporting with a plurality of Channel Resource Indicator (CRI)-based CSI refinements for up to 128 CSI Reference Signal (CSI-RS) ports. The method, wherein generating, by the UE, the UCI packing information based on the CMR associated with the CSI report may include generating, by the UE, a one-part CSI wideband Channel Quality Indicator (CQI) and Precoding Matrix Indicator (PMI) report based on the determined CRI-based CSI refinements. The method, wherein generating, by the UE, the UCI packing information based on the CMR associated with the CSI report may include packing, by the UE, the one-part CSI wideband CQI and PMI report into an uplink control information (UCI) message in a packing order, wherein the packing order may include the wideband CSI for a first reported CRI, the wideband CSI for a second reported CRI, up to, the wideband CSI for a Mth reported CRI, where each reported CRI is associated with the CMR. The method, wherein generating, by the UE, the UCI packing information based on the CMR associated with the CSI report may include transmitting, by the UE, the UCI message to the network apparatus.

[0229] In an embodiment, the method, wherein generating, by the UE, the one-part CSI wideband CQI and PMI report may include generating, by the UE, a CSI report based on the packing order determined, wherein the CSI report may include at least one of a rank indicator for the UCI, a layer indicator for the UCI, zero padding bits for the UCI, PMI wideband information fields for the UCI, a wideband CQI for a first TB for the UCI, the wideband CQI for a second TB for the UCI. The method, wherein generating, by the UE, the one-part CSI wideband CQI and PMI report may include generating, by the UE, the CSI report for an Mth reported CRI. The method, wherein generating, by the UE, the one-part CSI wideband CQI and PMI report may include adding, by the UE, upto a Mth CSI in the one-part CSI CQI and PMI report. The method, wherein generating, by the UE, the one-part CSI wideband CQI and PMI report may include transmitting, by the UE, the one-part CSI and PMI report to the network apparatus.

[0230] In an embodiment, the method may include splitting, by the UE, the UCI associated with the UE upon receiving the CRI report configuration from the network apparatus into the part one UCI portion and the part two UCI portion. The method may include configuring, by the UE, upon splitting the UCI, a UCI packing information for multiple CRI reporting along the part one UCI portion and the part two UCI portion, wherein the part one UCI portion may include a fixed design and a number of bits dependent on a predetermined configuration, and wherein the part two UCI portion comprises a variable payload dependent on a rank of channel state information (CSI) reporting, and wherein the part one UCI portion has a higher priority over the part two UCI portion.

[0231] In an embodiment, the method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part one UCI portion may include determining, by the UE, a part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one UCI packing order may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports. The method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part one UCI portion may include generating, by the UE, a CSI report message based on the part one UCI packing order determined. The method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part one UCI portion may include transmitting, by the UE, the CSI report message to the network apparatus on the PUCCH.

[0232] In an embodiment, the method may include reporting or dropping, by the UE, the part one UCI portion entirely, wherein the reporting or dropping may be performed with the following UCI packing order: reporting the part one UCI portion associated with the CMR, upto, reporting the part one CSI portion of the Mth reported CRI, where each reported CRI may be associated with CMR, where each CRI may be associated with CMR.

[0233] In an embodiment, the method, wherein the part one UCI packing order for reporting the UCI in the part one UCI portion may include part one UCI portion of the first reported CRI associated with configured CMR, and the part two UCI packing order for reporting the UCI in the part two UCI portion comprises part one UCI portion of the M-1 reported CRI, followed by part two UCI portion of upto M reported CRI.

[0234] In an embodiment, the method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include generating, by the UE, a part one CSI portion report based on the part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one CSI portion report may include CRI indicator for 1streported CRI,1streported CRI rank indicator for the UCI, a wideband differential channel quality indicator (CQI) for a first transport block (TB) for the 1streported CRI, a subband differential CQI for the first TB for the 1streported CRI, an indicator of a number of wideband amplitude coefficients for 1streported CRI. The method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include generating, by the UE, a part one CSI portion for upto a Mth reported CRI. The method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include adding, by the UE, the part one CSI portion generated upto the Mth reported CRI in the CSI report message.

[0235] In an embodiment, the method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include generating, by the UE, a part one CSI portion report based on the part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one CSI portion report may include at least one of a rank indicator for the 1streported CRI, a wideband differential channel quality indicator (CQI) for a first transport block (TB) for the 1streported CRI, an indicator of a number of wideband amplitude coefficients for the 1streported CRI. The method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include generating, by the UE, the part one CSI portion for upto Mth reported CRI. The method, wherein generating, by the UE, the CSI report message based on the part one UCI packing order determined may include adding, by the UE, the part one CSI portion generated upto the Mth reported CRI in the CSI report message.

[0236] In an embodiment, the method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part two UCI portion may include determining, by the UE, a part two UCI packing order for reporting the UCI in the part two UCI portion, wherein the part two UCI packing order may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports. The method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part two UCI portion may include generating, by the UE, a CSI report message based on the part two UCI packing order determined. The method, wherein configuring, by the UE, upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part two UCI portion may include transmitting, by the UE, the CSI report message to the network apparatus on the PUCCH.

[0237] In an embodiment, the method as claimed in claim 10, wherein the part two UCI for reporting the UCI may include part two wideband UCI portion and part two subband UCI portion.

[0238] In an embodiment, the method may include determining, by the UE, a part two subband UCI packing order for the part two subband UCI portion and consecutive priority levels for the UCI, excluding priority 0 wideband by: a. assigning consecutive priority levels from higher to lower; b. associating even subbands for the 1streported CRI; c. associating odd subbands for the 2ndreported CRI; d. upto, associating even subbands (G1) with a Mth reported CRI; and e. upto, associating odd subbands (G2) with the Mth reported CRI.

[0239] In an embodiment, the method, wherein generating, by the UE, the CSI report message based on the part two UCI packing order determined may include generating, by the UE, a part two CSI portion report based on the part two UCI packing order for reporting the UCI in the part two UCI portion, wherein the part two CSI portion report may include at least one of a first CRI subband CQI for a second TB of an even subbands for the UCI, a first CRI precoding matrix indicator (PMI) subband information fields of the even subbands for the UCI, a first CRI subband differential CQI for a second TB of an odd subbands for the UCI, a first CRI PMI subband information fields of the odd subbands for the UCI. The method, wherein generating, by the UE, the CSI report message based on the part two UCI packing order determined may include generating, by the UE, a part two subband CSI portion for upto Mth reported CRI. The method, wherein generating, by the UE, the CSI report message based on the part two UCI packing order determined may include adding, by the UE, the part two subband CSI portion generated for upto the Mth reported CRI in the CSI report message.

[0240] In an embodiment, the method, wherein splitting, by the UE, the UCI associated with the UE into the part two wideband UCI portion may include determining, by the UE, a part two wideband UCI packing order for reporting the part two UCI portion of the UCI upon determination of the priority 0 wideband within the part two UCI portion, wherein the part two UCI packing order may be obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports. The method, wherein splitting, by the UE, the UCI associated with the UE into the part two wideband UCI portion may include and generating, by the UE, a CSI report message based on the part two UCI packing order determined.

[0241] In an embodiment, the method, wherein the part two wideband UCI packing order may include a wideband (G0) for a first reported CRI, a wideband (G0) for a 2ndreported CRI, upto, a wideband (G0) for a M the reported CRI , where each reported CRI may be associated with configured CMR.

[0242] In an embodiment, the method, wherein the part two wideband UCI packing order may include a part one CSI portion for M-1 reported CRI, followed by wideband (G0) for a first reported CRI, and part a wideband (G0) for a 2ndreported CRI, upto, a wideband (G0) for a M the reported CRI , where each reported CRI may be associated with configured CMR.

[0243] In an embodiment, the method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include generating, by the UE, a part two wideband CSI portion report based on the part two UCI packing order determined, wherein the part two wideband UCI portion report may include at least one of a first CRI wideband CQI for a second TB for the UCI, a first CRI layer indicator for the UCI, first CRI PMI wideband information fields. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include generating, by the UE, a part two wideband CSI portion for upto an Mth reported CRI. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include adding, by the UE, the part two wideband CSI portion generated upto the Mth reported CRI in the CSI report message. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include transmitting, by the UE, the CSI report message to a network apparatus.

[0244] In an embodiment, the method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include generating, by the UE, a part two wideband CSI portion report based on the part two UCI packing order determined, wherein the part two wideband UCI portion report may include, a subband differential CQI for the first TB for the 1streported CRI, a first CRI wideband CQI for a second TB for the UCI, a first CRI layer indicator for the UCI, first CRI PMI wideband information fields. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include generating, by the UE, a part two wideband CSI portion for upto an Mth reported CRI. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include adding, by the UE, the part two wideband CSI portion generated upto the Mth reported CRI in the CSI report message. The method, wherein generating, by the UE, the CSI report message based on the part two wideband UCI packing order determined may include transmitting, by the UE, the CSI report message to a network apparatus.

[0245] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and / or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the embodiments as described herein.

Claims

1.A method for managing uplink control information (UCI) for hybrid beamforming on a physical uplink control channel (PUCCH) performed by a user equipment (UE) in a wireless communication system, the method comprising:receiving a channel state information (CSI) report configuration from a network apparatus, wherein the CSI report configuration comprises configuration information associated with multiple CSI reference signal (CSI-RS) resource indicator (CRI) based hybrid beamforming;determining a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration;generating a UCI packing information based on a codebook mode reporting (CMR) associated with the CSI report for multiple CRI reporting based on the CSI report configuration, wherein the UCI packing information is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.2.The method of claim 1, wherein generating the UCI packing information based on the CMR associated with the CSI report comprises:determining a CSI report configuration of type wideband channel quality indicator (CQI) / precoding matrix indicator (PMI) reporting with a plurality of CRI-based CSI refinements for up to 128 CSI-RS ports;generating a one-part CSI wideband CQI and PMI report based on the determined CRI-based CSI refinements;packing the one-part CSI wideband CQI and PMI report into an uplink control information (UCI) message in a packing order, wherein the packing order comprises the wideband CSI for a first reported CRI, the wideband CSI for a second reported CRI, up to, the wideband CSI for a Mth reported CRI, where each reported CRI is associated with the CMR; andtransmitting the UCI message to the network apparatus.3.The method of claim 2, wherein generating the one-part CSI wideband CQI and PMI report comprises:generating a CSI report based on the packing order determined, wherein the CSI report comprises at least one of a rank indicator for the UCI, a layer indicator for the UCI, zero padding bits for the UCI, PMI wideband information fields for the UCI, a wideband CQI for a first transport block (TB) for the UCI, the wideband CQI for a second TB for the UCI;generating the CSI report for an Mth reported CRI;adding upto a Mth CSI in the one-part CSI CQI and PMI report; andtransmitting the one-part CSI and PMI report to the network apparatus.4.The method of claim 1, comprising:splitting the UCI associated with the UE upon receiving the CRI report configuration from the network apparatus into the part one UCI portion and the part two UCI portion; andconfiguring upon splitting the UCI, a UCI packing information for multiple CRI reporting along the part one UCI portion and the part two UCI portion, wherein the part one UCI portion comprises a fixed design and a number of bits dependent on a predetermined configuration, and wherein the part two UCI portion comprises a variable payload dependent on a rank of CSI reporting, and wherein the part one UCI portion has a higher priority over the part two UCI portion.5.The method of claim 4, wherein configuring upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part one UCI portion comprises:determining a part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one UCI packing order is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports;generating a CSI report message based on the part one UCI packing order determined; andtransmitting, the CSI report message to the network apparatus on the PUCCH.6.The method of claim 4, comprising:reporting or dropping the part one UCI portion entirely, wherein the reporting or dropping is performed with the following UCI packing order: reporting the part one UCI portion associated with the CMR, upto, reporting the part one CSI portion of the Mth reported CRI, where each reported CRI is associated with CMR, where each CRI is associated with CMR.7.The method of claim 4, wherein the part one UCI packing order for reporting the UCI in the part one UCI portion comprises part one UCI portion of the first reported CRI associated with configured CMR, and the part two UCI packing order for reporting the UCI in the part two UCI portion comprises part one UCI portion of the M-1 reported CRI, followed by part two UCI portion of upto M reported CRI.8.The method of claim 5, wherein generating the CSI report message based on the part one UCI packing order determined comprises:generating a part one CSI portion report based on the part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one CSI portion report comprises CRI indicator for 1streported CRI, 1streported CRI rank indicator for the UCI, a wideband differential channel quality indicator (CQI) for a first transport block (TB) for the 1streported CRI, a subband differential CQI for the first TB for the 1streported CRI, an indicator of a number of wideband amplitude coefficients for 1streported CRI;generating a part one CSI portion for upto a Mth reported CRI; andadding the part one CSI portion generated upto the Mth reported CRI in the CSI report message.9.The method of claim 5, wherein generating the CSI report message based on the part one UCI packing order determined comprises:generating a part one CSI portion report based on the part one UCI packing order for reporting the UCI in the part one UCI portion, wherein the part one CSI portion report comprises at least one of a rank indicator for the 1streported CRI, a wideband differential channel quality indicator (CQI) for a first transport block (TB) for the 1streported CRI, an indicator of a number of wideband amplitude coefficients for the 1streported CRI;generating the part one CSI portion for upto Mth reported CRI; andadding the part one CSI portion generated upto the Mth reported CRI in the CSI report message.10.The method of claim 4, wherein configuring upon splitting the UCI, the UCI packing information for multiple CRI reporting along the part two UCI portion comprises:determining a part two UCI packing order for reporting the UCI in the part two UCI portion, wherein the part two UCI packing order is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports;generating a CSI report message based on the part two UCI packing order determined; andtransmitting the CSI report message to the network apparatus on the PUCCH.11.The method of claim 10, wherein the part two UCI for reporting the UCI comprises part two wideband UCI portion and part two subband UCI portion.12.The method of claim 11, comprising:determining a part two subband UCI packing order for the part two subband UCI portion and consecutive priority levels for the UCI, excluding priority 0 wideband by:a. assigning consecutive priority levels from higher to lower;b. associating even subbands for the 1streported CRI;c. associating odd subbands for the 2ndreported CRI;d. upto, associating even subbands (G1) with a Mth reported CRI; ande. upto, associating odd subbands (G2) with the Mth reported CRI.13.The method of claim 10, wherein generating the CSI report message based on the part two UCI packing order determined comprises:generating a part two CSI portion report based on the part two UCI packing order for reporting the UCI in the part two UCI portion, wherein the part two CSI portion report comprises at least one of a first CRI subband channel quality indicator (CQI) for a second transport block (TB) of an even subbands for the UCI, a first CRI precoding matrix indicator (PMI) subband information fields of the even subbands for the UCI, a first CRI subband differential CQI for a second TB of an odd subbands for the UCI, a first CRI PMI subband information fields of the odd subbands for the UCI;generating a part two subband CSI portion for upto Mth reported CRI; andadding the part two subband CSI portion generated for upto the Mth reported CRI in the CSI report message.14.The method of claim 11, wherein splitting the UCI associated with the UE into the part two wideband UCI portion comprises:determining a part two wideband UCI packing order for reporting the part two UCI portion of the UCI upon determination of the priority 0 wideband within the part two UCI portion, wherein the part two UCI packing order is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports; andgenerating a CSI report message based on the part two UCI packing order determined.15.A user equipment (UE) for managing uplink control information (UCI) for hybrid beamforming on a physical uplink control channel (PUCCH) in a wireless communication system, the UE comprising:memory;at least one processor; anda UCI management controller communicatively coupled to the memory and the at least one processor, wherein the UCI management controller:receives a channel state information (CSI) report configuration from a network apparatus, wherein the CSI report configuration comprises configuration information associated with multiple CSI reference signal (CSI-RS) resource indicator (CRI) based hybrid beamforming;determines a frequency granularity of a CSI report, a CSI feedback type, and a periodicity of CSI reports based on the CSI report configuration;generates a UCI packing information based on a codebook mode reporting (CMR) associated with the CSI report for multiple CRI reporting based on the CSI report configuration, wherein the UCI packing information is obtained for a CRI-based CSI refinement for up to 128 CSI-RS ports.

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