Method and apparatus for scheduling ue capable of receiving through multiple antenna panels

Abstract

Apparatuses and methods for scheduling of a user equipment (UE) capable of reception through multiple antenna panels. A method for a UE includes receiving information for a first search space set and a first CORESET for a first cell. The method further includes determining a second search space set from the first search space set associated with time overlapping PDCCH reception in a second CORESET from a second cell from the first cell. The method further includes receiving a PDCCH from a CSS set or a USS set from the second search space set only in (a) the first CORESET with a first TCI state, and (b) if any, the second CORESET with a second TCI state different from the first TCI state, and (c) any other CORESET from the second CORESET with a same TCI state as the first TCI state or the second TCI state.

Description

Technical Field

[0001] This disclosure generally relates to wireless communication systems, and more specifically, to the scheduling of user equipment (UE) capable of receiving data via multiple antenna panels. Background Technology

[0002] To meet the increased demand for wireless data services since the deployment of fourth-generation (4G) communication systems, efforts have been made to develop improved fifth-generation (5G) or near-5G communication systems. 5G or near-5G communication systems are also referred to as "beyond 4G networks" or "post-Long Term Evolution (LTE) systems." 5G communication systems are considered to be implemented in higher frequency (mmWave) bands (e.g., the 60GHz band) to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies have been discussed for 5G communication systems. Furthermore, in 5G communication systems, development is underway to improve system networks based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multipoint (CoMP), and receiver interference cancellation. In 5G systems, hybrid frequency shift keying (FSK) and Fisher quadrature amplitude modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding and modulation (ACM), as well as filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies.

[0003] The Internet, a human-centric network in which humans generate and consume information, is now evolving into the Internet of Things (IoT), a distributed network of entities such as things that exchange and process information without human intervention. The Internet of Everything (IoE), a combination of IoT technology and big data processing technology connected to cloud servers, has emerged. Because IoT implementations have always required technological elements such as sensing technology, wired / wireless communication and network infrastructure, service interface technology, and security technology, sensor networks, machine-to-machine (M2M) communication, and machine-type communication (MTC) have recently been studied. Such an IoT environment can provide intelligent Internet technology services that create new value for human life by collecting and analyzing data generated in connected things. IoT can be applied to a wide range of fields, including smart homes, smart buildings, smart cities, smart cars or connected cars, smart grids, healthcare, smart appliances, and advanced medical services, through the integration and combination of existing information technology (IT) with various industrial applications.

[0004] Consistent with this, various attempts have been made to apply 5G communication systems to IoT networks. For example, technologies such as sensor networks, MTC, and M2M communication can be implemented through beamforming, MIMO, and array antennas. Cloud RAN, as an application of the aforementioned big data processing technologies, can also be considered an example of the convergence between 5G and IoT technologies.

[0005] With all the global technical activity from industry and academia regarding various candidate technologies, fifth-generation (5G) or new radio (NR) mobile communications is recently gaining momentum. Candidate enablers for 5G / NR mobile communications include massive MIMO technologies ranging from traditional cellular bands up to higher frequencies to provide beamforming gain and support increased capacity; new waveforms for flexible adaptation to various services / applications with different requirements (e.g., new radio access technologies (RATs)); and new multiple access schemes to support massive connectivity. Summary of the Invention

[0006] Solution to the problem

[0007] This disclosure relates to the scheduling of UEs capable of receiving data via multiple antenna panels.

[0008] In one embodiment, a method for a UE is provided. The method includes receiving information about a first search space set and a first control resource set (CORESET) for a first cell. The search space set has an index, is a common search space set (CSS set) or a UE-specific search space set (USS set), and is associated with a CORESET having an index and a Transport Configuration Indicator (TCI) state.

[0009] Beneficial effects of the invention

[0010] According to embodiments of the present invention, scheduling of user equipment (UE) capable of receiving signals through multiple antenna panels is provided. Attached Figure Description

[0011] To more fully understand this disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which similar reference numerals denote similar parts:

[0012] Figure 1 An example wireless network according to an embodiment of the present disclosure is shown;

[0013] Figure 2 An example base station (BS) according to an embodiment of the present disclosure is shown;

[0014] Figure 3 An example UE according to an embodiment of the present disclosure is shown;

[0015] Figure 4 and Figure 5 An example wireless transmission and reception path according to an embodiment of this disclosure is shown;

[0016] Figure 6 A block diagram of an example transmitter structure using orthogonal frequency division multiplexing (OFDM) according to an embodiment of the present disclosure is shown;

[0017] Figure 7 A block diagram of an example receiver structure using OFDM according to an embodiment of the present disclosure is shown;

[0018] Figure 8 An example method is shown according to an embodiment of the present disclosure for instructing a plurality of non-zero power (NZP) channel state information (CSI) reference signals (RS) to be configured for a UE to perform measurements and provide a plurality of corresponding CSI reports;

[0019] Figure 9 An example method is shown according to an embodiment of the present disclosure for instructing a UE on the configuration of multiple NZP-CSI-RS resources for the UE to perform measurements and provide corresponding multiple CSI reports via a downlink control information (DCI) format transmitted via an unscheduled physical uplink shared channel (PUSCH).

[0020] Figure 10A An example method for a UE to determine duplicate PUSCH transmissions for multiplexing CSI reports, according to embodiments of the present disclosure, is shown.

[0021] Figure 10BA diagram showing repeated PUSCH transmissions according to an embodiment of the present disclosure is illustrated;

[0022] Figure 11 and Figure 12 An example method is shown according to an embodiment of the present disclosure for a UE capable of receiving simultaneously with two spatial filters to determine CORESETs with different quasi-co-address (QCL) "typeD" attributes for listening to PDCCH candidates during time-overlapping PDCCH timings;

[0023] Figure 13 This is a block diagram of the base station configuration according to an embodiment;

[0024] Figure 14 This is a block diagram illustrating the structure of a terminal according to an embodiment of the present disclosure. Detailed Implementation

[0025] This disclosure relates to the scheduling of UEs capable of receiving data via multiple antenna panels.

[0026] In one embodiment, a method for a UE is provided. The method includes receiving information about a first search space set and a first control resource set (CORESET) for a first cell. The search space set has an index, is a common search space set (CSS set) or a UE-specific search space set (USS set), and is associated with a CORESET having an index and a Transport Configuration Indicator (TCI) state.

[0027] The method further includes: determining a second search space set associated with time-overlapping PDCCH reception from a second cell of the first cell and from the first search space set in a second CORESET of the first CORESET; and receiving the physical downlink control channel (PDCCH) only in the following cases according to a CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state; (b) a second CORESET, if any, having a second TCI state different from the first TCI state; and (c) any other CORESET from the second CORESET having the same TCI state as the first TCI state or the second TCI state.

[0028] If any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell. Excluding CSS sets and USS sets associated with the CORESET having the first TCI state, if any, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

[0029] In another embodiment, a UE is provided. The UE includes a transceiver configured to receive information about a first search space set and a first CORESET of a first cell. The search space set has an index, is a CSS set or a USS set, and is associated with a CORESET having an index and a TCI state.

[0030] The UE further includes a processor operatively coupled to the transceiver. The processor is configured to determine a second search space set associated with time overlap reception of a physical downlink control channel (PDCCH) from a second cell of the first cell and from the first search space set with respect to the physical downlink control channel (PDCCH) from a second core set of the first core set.

[0031] The transceiver is further configured to receive PDCCH only in the following cases based on the CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state, and (b) a second CORESET having a second TCI state different from the first TCI state, if any, and (c) any other CORESET from the second CORESET having the same TCI state as the first TCI state or the second TCI state.

[0032] If any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell. Excluding CSS sets and USS sets associated with the CORESET having the first TCI state, if any, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

[0033] In another embodiment, a base station is provided. The base station includes a transceiver configured to transmit information about a first search space set and a first CORESET of a first cell. The search space set has an index, is a CSS set or a USS set, and is associated with a CORESET having an index and a TCI state.

[0034] The base station further includes a processor operatively coupled to the transceiver, the processor being configured to: determine a second search space set associated with time overlap reception of physical downlink control channels (PDCCHs) from the first search space set and from the second CORESET of the first CORESET, from a second cell of the first cell.

[0035] The transceiver is further configured to send PDCCH only in the following cases according to the CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state, and (b) if any, a second CORESET having a second TCI state different from the first TCI state, and (c) any other CORESET from the second CORESET having the same TCI state as the first TCI state or the second TCI state.

[0036] If any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell. Excluding CSS sets and USS sets associated with the CORESET having the first TCI state, if any, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

[0037] In one embodiment, a method for a base station is provided. The method includes: transmitting information about a first search space set and a first control resource set (CORESET) for a first cell. The search space set has an index, is a common search space set (CSS set) or a UE-specific search space set (USS set), and is associated with a CORESET having an index and a Transmission Configuration Indicator (TCI) state.

[0038] The method further includes: determining a second search space set associated with time overlap reception of the Physical Downlink Control Channel (PDCCH) from the first search space set and the second core set from the first core set of the first core set. The PDCCH is transmitted only according to the CSS set or USS set from the second search space set in the following: (a) the first core set having a first TCI state; (b) if any, the second core set having a second TCI state different from the first TCI state; and (c) any other core set from the second core set having the same TCI state as the first TCI state or the second TCI state.

[0039] If any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell. Excluding the CSS set and USS set associated with the CORESET having the first TCI state, if any, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

[0040] Other technical features will be readily apparent to those skilled in the art from the following figures, descriptions and claims.

[0041] The mode of the present invention

[0042] Before proceeding with the description below, it may be advantageous to define certain words and phrases used throughout this patent document. The term “coupled” and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether these elements are physically in contact with each other. The terms “transmit,” “receive,” and “communicate,” and their derivatives, include both direct and indirect communication. The terms “comprise” and “include,” and their derivatives, mean unrestricted inclusion. The term “or” is inclusive, meaning and / or. The phrase “associated with,” and its derivatives, mean to include, to be contained within, to be interconnected with, to contain, to be contained within, to be connected to or connected with, to be coupled to or coupled with, to be communicable with, to cooperate with, to interleave, to juxtapose, to be close to, to be bound to or subject to, to have, to possess the properties of, to have a relationship with, etc. The term “controller” means any device, system, or part thereof that controls at least one operation. Such a controller may be implemented in hardware or a combination of hardware and software and / or firmware. The functionality associated with any particular controller can be centralized or distributed, whether local or remote. The phrase "at least one of..." when used with a list of items means that different combinations of one or more of the listed items can be used, and only one item from the list may be required. For example, "at least one of A, B, and C" includes any of the following combinations: A, B, C, A and B, A and C, B and C, and A, B, and C.

[0043] Furthermore, the various functions described below can be implemented or supported by one or more computer programs, each computer program being formed by computer-readable program code and embodied in a computer-readable medium. The terms "application" and "program" refer to one or more computer programs, software components, instruction sets, procedures, functions, objects, classes, instances, associated data, or portions thereof suitable for implementation in appropriate computer-readable program code. The phrase "computer-readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer-readable medium" includes any type of medium accessible by a computer, such as read-only memory (ROM), random access memory (RAM), hard disk drive, optical disc (CD), digital video disc (DVD), or any other type of storage. "Non-transitory" computer-readable media excludes wired, wireless, optical, or other communication links that transmit transient electrical or other signals. Non-transitory computer-readable media includes media capable of permanently storing data and media capable of storing and later overwriting data, such as rewritable optical discs or erasable storage devices.

[0044] Definitions of certain other words and phrases are provided throughout this patent document. It will be understood by those skilled in the art that, in many, but not most, instances, such definitions apply to the prior and future uses of the words and phrases defined as such.

[0045] The following discussion Figures 1 to 14 The various embodiments used to describe the principles of this disclosure in this patent document are for illustrative purposes only and should not be construed as limiting the scope of this disclosure in any way. Those skilled in the art will understand that the principles of this disclosure can be implemented in any suitably arranged system or device.

[0046] The following documents are hereby incorporated in this disclosure by reference, as if fully set forth herein:

[0047] [1]3GPP TS 38.211v16.3.0, "NR; Physical channels and modulation";

[0048] [2]3GPP TS 38.212v16.3.0, "NR; Multiplexing and Channel coding";

[0049] [3]3GPP TS 38.213v16.3.0, "NR; Physical Layer Procedures for Control";

[0050] [4]3GPP TS 38.214v16.3.0, "NR; Physical Layer Procedures for Data";

[0051] [5]3GPP TS 38.321v16.2.1, "NR; Medium Access Control (MAC) protocol specification"; and

[0052] [6] 3GPP TS 38.331v16.2.0, "NR; Radio Resource Control (RRC) Protocol Specification".

[0053] To meet the increased demand for wireless data services since the deployment of fourth-generation (4G) communication systems, efforts have been made to develop and deploy improved fifth-generation (5G) or near-5G / NR communication systems. Therefore, 5G or near-5G communication systems are also referred to as "beyond 4G networks" or "post-LTE systems".

[0054] 5G communication systems are considered to be implemented in higher frequency (mmWave) bands (e.g., 28 GHz or 60 GHz bands) to achieve higher data rates, or in lower frequency bands such as 6 GHz to enable robust coverage and mobility support. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0055] In addition, in 5G communication systems, development is carried out to improve the system network based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multipoint (CoMP), receiver interference cancellation, and other technologies.

[0056] The discussion of 5G systems and their associated frequency bands is for reference only, as certain embodiments of this disclosure can be implemented in 5G systems. However, this disclosure is not limited to 5G systems or their associated frequency bands, and embodiments of this disclosure can be utilized in conjunction with any frequency band. For example, aspects of this disclosure can also be applied to the deployment of 5G communication systems, 6G, or even later versions that may use terahertz (THz) frequency bands.

[0057] Depending on the network type, the term "base station (BS)" can refer to any component (or set of components) configured to provide radio access to a network, such as a transmitting point (TP), a transmitting and receiving point (TRP), an enhanced base station (eNodeB or eNB), a gNB, a macro cell, a femtocell, a WiFi access point (AP), satellite, or other radio-enabled equipment. A base station can provide radio access in accordance with one or more of the following wireless communication protocols: for example, 5G 3GPP New Radio Interface / Access (NR), LTE, Advanced LTE (LTE-A), High-Speed ​​Packet Access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. The terms "BS," "gNB," and "TRP" may be used interchangeably in this disclosure to refer to network infrastructure components that provide radio access to remote terminals. Additionally, depending on the network type, the term "user equipment (UE)" can refer to any component such as a mobile station, user station, remote terminal, wireless terminal, receiving point, vehicle, or user equipment. For example, a UE can be a mobile phone, smartphone, listening device, alarm device, fleet management device, asset tracking device, automobile, desktop computer, entertainment device, infotainment device, vending machine, electricity meter, water meter, gas meter, security device, sensor device, electrical appliance, etc. A UE can be a mobile device or a fixed device. The term UE can also refer to a remote wireless device that wirelessly accesses a BS. A UE can also be a car, truck, van, drone, or any other similar machine or device within such a machine.

[0058] Figure 1-3 The following describes various embodiments implemented in wireless communication systems and using orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) communication technologies. Figure 1-3 The description is not intended to imply any physical or architectural limitation on the ways in which different embodiments may be implemented. Different embodiments of this disclosure may be implemented in any suitably arranged communication system.

[0059] Figure 1 An example wireless network 100 according to an embodiment of the present disclosure is shown. Figure 1 The illustrated embodiment of the wireless network 100 is for illustrative purposes only. Other embodiments of the wireless network 100 may be used without departing from the scope of this disclosure.

[0060] like Figure 1 As shown, the wireless network 100 includes a base station BS 101 (e.g., a gNB), BS 102, and BS 103. BS 101 communicates with BS 102 and BS 103. BS 101 also communicates with at least one network 130, such as the Internet, a proprietary Internet Protocol (IP) network, or other data networks.

[0061] BS 102 provides wireless broadband access to network 130 to a first plurality of user equipments (UEs) within its coverage area 120. The first plurality of UEs includes: UE 111, which may be located in a small business; UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a mobile phone, wireless laptop, wireless PDA, etc. BS 103 provides wireless broadband access to network 130 to a second plurality of UEs within its coverage area 125. The second plurality of UEs includes UE 115, UE 116, UE 117, and UE 118. In some embodiments, one or more of BS101-103 may use 5G / NR, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A), WiMAX, WiFi or other wireless communication technologies to communicate with each other and with UE 111-118.

[0062] In some embodiments, multiple UEs (such as UE 117, UE 118, and UE 119) can communicate directly with each other via device-to-device communication. In some embodiments, a UE such as UE 119 may be outside the network's coverage area but may communicate with other UEs (such as UE 118) inside the network's coverage area or with other UEs outside the network's coverage area.

[0063] The dashed lines show the approximate extent of coverage areas 120 and 125, which are shown as generally circular for illustrative purposes only. It should be clearly understood that, depending on the configuration of the BS and variations in the wireless environment associated with natural and man-made obstacles, the coverage areas associated with the BS, such as coverage areas 120 and 125, may have other shapes, including irregular shapes.

[0064] As described in more detail below, one or more of UEs 111-119 include circuitry, programming, or a combination thereof for scheduling reception via multiple antenna panels. In some embodiments, one or more of BSs 101-103 include circuitry, programming, or a combination thereof for scheduling a UE that can receive via multiple antenna panels.

[0065] although Figure 1 An example of a wireless network is shown, but more can be found on... Figure 1Various modifications can be made. For example, the wireless network can include any number of BSs and any number of UEs in any suitable arrangement. Additionally, BS 101 can communicate directly with any number of UEs and provide these UEs with wireless broadband access to network 130. Similarly, each BS 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. Furthermore, BS 101, 102, and / or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0066] Figure 2 An example BS 102 according to an embodiment of the present disclosure is shown. Figure 2 The embodiment of BS 102 shown is for illustrative purposes only, and Figure 1 BS 101 and 103 can have the same or similar configurations. However, BSs come in a wide variety of configurations, and Figure 2 This disclosure is not intended to limit the scope to any particular implementation of the BS. Note that... Figure 1 BS 101 and Figure 1 BS103 may include Figure 2 The same or similar structure shown.

[0067] like Figure 2 As shown, BS 102 includes multiple antennas 205a-205n, multiple radio frequency (RF) transceivers 210a-210n, transmit (TX) processing circuitry 215, and receive (RX) processing circuitry 220. BS 102 also includes a controller / processor 225, a memory 230, and a backhaul or network interface 235.

[0068] RF transceivers 210a-210n receive incoming RF signals, such as signals transmitted by a UE in wireless network 100, from antennas 205a-205n. RF transceivers 210a-210n down-convert the incoming RF signals to generate an IF signal or a baseband signal. The IF signal or baseband signal is sent to RX processing circuitry 220, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband signal or IF signal. RX processing circuitry 220 sends the processed baseband signal to controller / processor 225 for further processing.

[0069] TX processing circuit 215 receives analog or digital data (such as voice data, web data, email, or interactive video game data) from controller / processor 225. TX processing circuit 215 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceivers 210a-210n receive the processed baseband or IF signals from TX processing circuit 215 and up-convert these baseband or IF signals into RF signals transmitted via antennas 205a-205n.

[0070] The controller / processor 225 may include one or more processors or other processing devices that control the overall operation of the BS 102. For example, the controller / processor 225 may control the reception of uplink (UL) channel signals and the transmission of downlink (DL) channel signals via RF transceivers 210a-210n, RX processing circuitry 220, and TX processing circuitry 215, in accordance with known principles. The controller / processor 225 may also support additional functions, such as more advanced wireless communication capabilities. For example, the controller / processor 225 may support the scheduling of UEs capable of receiving signals through multiple antenna panels. Any of a variety of other functions may be supported in the BS 102 via the controller / processor 225. In some embodiments, the controller / processor 225 includes at least one microprocessor or microcontroller.

[0071] The controller / processor 225 may also run programs and other processes, such as an OS, residing in the memory 230. The controller / processor 225 may move data into or out of the memory 230 as required by the running processes. In some embodiments, the controller / processor 225 supports scheduling UEs capable of receiving data through multiple antenna panels. For example, the controller / processor 225 may move data into or out of the memory 230 based on the running processes.

[0072] The controller / processor 225 is also coupled to the backhaul or network interface 235. The backhaul or network interface 235 enables the BS 102 to communicate with other devices or systems via a backhaul connection or over a network. The network interface 235 can support communication via any suitable wired or wireless connection. For example, when the BS 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G / NR, LTE, or LTE-A), the network interface 235 can enable the BS 102 to communicate with other BSs via a wired or wireless backhaul connection. When the BS 102 is implemented as an access point, the network interface 235 can enable the BS 102 to communicate via a wired or wireless local area network or via a wired or wireless connection to a larger network (such as the Internet). The network interface 235 includes any suitable architecture that supports communication via wired or wireless connections, such as Ethernet or RF transceivers.

[0073] The memory 230 is coupled to the controller / processor 225. A portion of the memory 230 may include RAM, while another portion of the memory 230 may include flash memory or other ROM.

[0074] although Figure 2 An example of BS 102 is shown, but it is possible to modify it. Figure 2 Make various changes. For example, BS 102 may include... Figure 2 Each component can be any number shown. As a specific example, an access point may include multiple network interfaces 235, and the controller / processor 225 may support routing functionality to route data between different network addresses. As another specific example, although shown as a single instance of TX processing circuitry 215 and a single instance of RX processing circuitry 220, BS102 may include multiple instances of each (e.g., one per RF transceiver). Additionally, Figure 2 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed.

[0075] Figure 3 An example UE 116 according to an embodiment of the present disclosure is shown. Figure 3 The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 and 117-119 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3 This disclosure is not intended to limit the scope to any particular implementation of BS.

[0076] like Figure 3As shown, UE 116 includes an antenna 305, an RF transceiver 310, a TX processing circuit 315, a microphone 320, and a receive (RX) processing circuit 325. UE 116 also includes a speaker 330, a processor 340, an input / output (I / O) interface (IF) 345, an input device 350, a display 355, and a memory 360. The memory 360 includes an operating system (OS) 361 and one or more applications 362.

[0077] RF transceiver 310 receives incoming RF signals transmitted by a BS (Browser Station) of wireless network 100 from antenna 305. RF transceiver 310 down-converts the incoming RF signals to generate an intermediate frequency (IF) signal or a baseband signal. The IF signal or baseband signal is sent to RX processing circuitry 325, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband signal or IF signal. RX processing circuitry 325 sends the processed baseband signal to speaker 330 (e.g., for voice data) or to processor 340 for further processing (e.g., for web browsing data).

[0078] The TX processing circuit 315 receives analog or digital voice data from the microphone 320 or other outgoing baseband data (such as web data, email, or interactive video game data) from the processor 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband signal or IF signal. The RF transceiver 310 receives the processed outgoing baseband signal or IF signal from the TX processing circuit 315 and up-converts the baseband signal or IF signal into an RF signal transmitted via the antenna 305.

[0079] Processor 340 may include one or more processors or other processing devices and runs OS 361 stored in memory 360 to control the overall operation of UE 116. For example, processor 340 may control the reception of DL channel signals and the transmission of UL channel signals via RF transceiver 310, RX processing circuitry 325, and TX processing circuitry 315 in accordance with known principles. In some embodiments, processor 340 includes at least one microprocessor or microcontroller.

[0080] Processor 340 can also run other processes and programs residing in memory 360, such as processes for beam management. Processor 340 can move data into or out of memory 360 as required by running processes. In some embodiments, processor 340 is configured to run application 362 based on OS 361 or in response to signals received from BS or operator. Processor 340 is also coupled to I / O interface 345, which provides UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. I / O interface 345 is the communication path between these accessories and processor 340.

[0081] Processor 340 is also coupled to input device 350. An operator of UE 116 can use input device 350 to type data into UE 116. Input device 350 can be a keyboard, touchscreen, mouse, trackball, voice input, or other device that serves as a user interface allowing the user to interact with UE 116. For example, input device 350 may include voice recognition processing, enabling the user to input voice commands. In another example, input device 350 may include a touch panel, (digital) pen sensor, key, or ultrasonic input device. Touch panel can recognize touch input in at least one of the following methods: capacitive, pressure-sensitive, infrared, or ultrasonic.

[0082] The processor 340 is also coupled to the display 355. The display 355 may be a liquid crystal display, a light-emitting diode display, or other display capable of rendering text and / or at least limited graphics from a website.

[0083] The memory 360 is coupled to the processor 340. A portion of the memory 360 may include random access memory (RAM), while another portion of the memory 360 may include flash memory or other read-only memory (ROM).

[0084] although Figure 3 An example of UE 116 is shown, but it is possible to modify it. Figure 3 Make various changes. For example, Figure 3 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, processor 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Additionally, although... Figure 3 The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0085] Figure 4 and Figure 5An example wireless transmission and reception path according to this disclosure is shown. In the following description, Figure 4 The sending path 400 can be described as being implemented in a BS (such as BS 102). Figure 5 The receive path 500 can be described as being implemented in the UE (such as UE 116). However, it is understood that the receive path 500 can be implemented in the BS, while the transmit path 400 can be implemented in the UE. In some embodiments, the receive path 500 is configured to support scheduling of UEs that can receive via multiple antenna panels, as described in embodiments of this disclosure.

[0086] like Figure 4 The transmission path 400 shown includes a channel coding and modulation block 405, a serial-to-parallel (S-to-P) block 410, a big-N inverse fast Fourier transform (IFFT) block 415, a parallel-to-serial (P-to-S) block 420, a cyclic prefix addition block 425, and an up-converter (UC) 430. For example... Figure 5 The receiver path 500 shown includes a downconverter (DC) 555, a cyclic prefix removal block 560, a serial-to-parallel (S-to-P) block 565, a big-N fast Fourier transform (FFT) block 570, a parallel-to-serial (P-to-S) block 575, and a channel decoding and demodulation block 580.

[0087] like Figure 4 As shown, channel coding and modulation block 405 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as with quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel block 410 converts (such as demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the IFFT / FFT size used in BS 102 and UE 116. Size N IFFT block 415 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 420 converts (such as multiplexes) the parallel time-domain output symbols from size N IFFT block 415 to generate a serial time-domain signal. Cyclic prefix addition block 425 inserts a cyclic prefix into the time-domain signal. Upconverter 430 modulates (such as upconverts) the output of cyclic prefix addition block 425 to an RF frequency for transmission via a wireless channel. The signal can also be filtered in baseband before being converted to RF frequency.

[0088] The RF signal transmitted from BS 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the reverse of the operations at BS 102.

[0089] like Figure 5 As shown, downconverter 555 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 560 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 565 converts the time-domain baseband signal into a parallel time-domain signal. Size N FFT block 570 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 575 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 580 demodulates and decodes the modulated symbols to recover the original input data stream.

[0090] Each of BS 101-103 can achieve the following: Figure 4 The diagram shows a transmission path 400 similar to that sent to UE 111-116 in the downlink, and can achieve the following: Figure 5 The example shown is similar to receive path 500 received from UE 111-118 in the uplink. Similarly, each of UE 111-118 can implement transmit path 400 for sending to BS 101-103 in the uplink, and can implement receive path 500 for receiving from BS 101-103 in the downlink.

[0091] In addition, each of UEs 111-119 can implement a transmission path 400 for sending to the other of UEs 111-119 in a side link, and can implement a reception path 500 for receiving from the other of UEs 111-119 in a side link.

[0092] This can be achieved using hardware or a combination of hardware and software / firmware. Figure 4 and Figure 5 Each component in [the document / framework]. As a specific example, Figure 4 and Figure 5 At least some components can be implemented in software; however, other components can be implemented in configurable hardware or a hybrid of software and configurable hardware. For example, FFT block 570 and IFFT block 515 can be implemented as configurable software algorithms, where the value of size N can be modified depending on the implementation.

[0093] Furthermore, although described as using FFT and IFFT, this is for illustrative purposes only and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, may be used. It will be understood that for the DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), and for the FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0094] although Figure 4 and Figure 5 An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 4 and Figure 5 Make various changes. For example, Figure 4 and Figure 5 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 4 and Figure 5 This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0095] The unit used for DL ​​signaling or UL signaling on a cell is called a time slot and may include one or more symbols. The bandwidth (BW) unit is called a resource block (RB). An RB comprises multiple subcarriers (SCs). For example, a time slot may have a duration of one millisecond, while an RB may have a bandwidth of 180 kHz and include 12 SCs with an inter-SC spacing of 15 kHz. The subcarrier spacing (SCS) can be determined as 2 μ ◆ 15 kHz via the SCS configuration. The unit of a subcarrier above a symbol is called a resource element (RE). The unit of an RB above a symbol is called a physical RB (PRB).

[0096] DL signals include data signals that convey information content, control signals that convey DL control information (DCI), and reference signals (RS), also known as pilot signals. A BS (such as BS 102) transmits data information or DCI via a corresponding PDSCH or PDCCH. PDSCH or PDCCH can be transmitted using a variable number of time slot symbols, each consisting of a time slot symbol.

[0097] PDCCH transmission occurs over a predetermined set of CCEs, representing a number of CCEs known as a control channel element (CCE) aggregation level. PDCCH transmission also occurs within the time-frequency resources of the CORESET and over a predetermined set of CCEs, representing a number of CCEs known as a CCE aggregation level.

[0098] PDSCH transmissions are scheduled via DCI format or semi-persistently scheduled (SPS) as configured by a higher layer and activated by DCI format. A PDSCH reception performed by the UE provides one or more transport blocks (TBs), wherein the TB is associated with the HARQ procedure indicated by the Hybrid Automatic Repeat Request (HARQ) procedure number field in the DCI format that schedules the PDSCH reception or activates the SPS PDSCH reception.

[0099] A TB transmission can be an initial TB transmission or a retransmission as identified by the New Data Indicator (NDI) field in the DCI format received by the scheduled PDSCH, which provides TV retransmission, or by a given HARQ procedure number.

[0100] The BS transmits one or more RSs of various types, including Channel State Information (CSI) RSs and Demodulation RSs (DM-RSs). CSI-RSs are intended for the UE (such as UE 116) to perform measurements and provide Channel State Information (CSI) to the BS. Non-zero power (NZP) CSI-RS resources can be used for channel measurements or time tracking. CSI Interference Measurement Report (IMR) resources can be used for IMR. CSI-IM resources can also be associated with zero power CSI-RS (ZP CSI-RS) configurations. The UE can determine CSI-RS reception parameters via DL control signaling or higher-level signaling, such as RRC signaling from the BS. DM-RSs are typically transmitted within the BW of the corresponding PDCCH or PDSCH, and the UE can use DM-RSs to demodulate data or control information.

[0101] UL signals also include data signals conveying information content, control signals conveying UL control information (UCI), DM-RS associated with data or UCI demodulation, sounding reference signals (SRS) enabling the BS to perform UL channel measurements, and random access (RA) preamble enabling the UE (such as UE 116) to perform random access. The UE transmits data information or UCI via the corresponding Physical UL Shared Channel (PUSCH) or Physical UL Control Channel (PUCCH). PUSCH or PUCCH can be transmitted using a variable number of time slot symbols, each including one time slot symbol. When the UE transmits both data information and UCI simultaneously, the UE can multiplex both in the PUSCH, or, depending on the UE's capabilities, at least when the transmission is on different cells, it can transmit both a PUSCH with data information and a PUCCH with UCI.

[0102] UCI includes HARQ-ACK information indicating correct or incorrect decoding of a TB or code block group (CBG) in the PDSCH, a scheduling request (SR) indicating whether the UE has data to send in its buffer, and a CSI report enabling the BS to select appropriate parameters for PDSCH / TB or PDCCH / DCI format transmission to the UE. The UE sends the PUCCH for the primary cell of the cell group. The HARQ-ACK information is an affirmative acknowledgment (ACK) when the TB is decoded correctly or a negative acknowledgment (NACK) when the TB is decoded incorrectly. ACK can be represented by a binary "1" value, while NACK can be represented by a binary "0" value.

[0103] The UE can also multiplex HARQ-ACK information in a time slot indicated by the value of the PDSCH-to-HARQ_feedback timing indicator field in the DCI format from a set of time slot timing values ​​K1, or in the case of SPS PDSCH reception, indicated by a higher layer.

[0104] In some embodiments, the UL RS includes a dedicated demodulation reference signal (DMRS) and an SRS. The DMRS is typically transmitted within the BW of the corresponding PUSCH or PUCCH. The BS (such as BS 102) can use the DMRS to demodulate the information in the corresponding PUSCH or PUCCH. The SRS is transmitted by the UE to provide the UL CSI to the BS and, for TDD systems, also to provide a precoding matrix indicator (PMI) for DL ​​transmissions. Furthermore, the UE may transmit a Physical Random Access Channel (PRACH) as part of the random access procedure or for other purposes.

[0105] DL reception and UL transmission by the UE can be configured to occur within the corresponding DL BWP and UL BWP. The DL / UL BWP is less than or equal to the DL / UL bandwidth of the serving cell. DL transmissions from the BS and UL transmissions from the UE can be based on OFDM waveforms, including variants using DFT precoding known as DFT-spread-OFDM.

[0106] Figure 6 A block diagram 600 illustrating an example transmitter structure using OFDM according to an embodiment of the present disclosure is shown. Figure 7 A block diagram 700 illustrating an example receiver structure using OFDM according to an embodiment of the present disclosure is shown. The transmitter structure shown in block diagram 600 and the receiver structure shown in block diagram 700 can be similar to... Figure 2 RF transceivers 210a-210n and Figure 3 The RF transceiver 310. Figure 6 Example block diagram 600 and Figure 7 The block diagram 700 is for illustration only, and other embodiments may be used without departing from the scope of this disclosure.

[0107] As shown in block diagram 600, information bits 610, such as DCI bits or data bits, are encoded by encoder 620, rate-matched to the assigned time / frequency resource by rate matcher 630, and modulated by modulator 640. Subsequently, the modulation-coded symbols and DMRS or CSI-RS 650 are mapped to the SC by SC mapping unit 660 according to the input from BW selector unit 665, IFFT is performed by filter 670, a cyclic prefix (CP) is added by CP insertion unit 680, and the resulting signal is filtered by filter 690 and transmitted as transmit bit 695 by radio frequency (RF) unit.

[0108] As shown in block diagram 700, the received signal 710 is filtered by filter 720, CP removal unit 730 removes CP, filter 740 applies fast FFT, SC demapping unit 750 demaps the SC selected by BW selector unit 755, the received symbols are demodulated by channel estimator and demodulator unit 760, rate dematcher 770 restores rate matching, and decoder 780 decodes the obtained bits to provide information bits 790.

[0109] A UE (such as UE 116) can listen for potential PDCCH reception at multiple candidate locations to decode multiple DCI formats in a time slot according to a search space set. The DCI format includes Cyclic Redundancy Check (CRC) bits to allow the UE to confirm correct detection of the DCI format. The DCI format type is identified by a Radio Network Temporary Identifier (RNTI) scrambled with the CRC bits. A UE can be configured with multiple search space sets, defined by the associated DCI format, the number of PDCCH candidates per CCE aggregation level, the period of the number of time slots, the duration of consecutive time slots, etc. When the UE listens for PDCCHs according to a Common Search Space (CSS), the corresponding search space set is called the CSS set. When the UE listens for PDCCHs according to a UE-Specific Search Space (USS), the corresponding search space set is called the USS set.

[0110] For DCI formats that schedule PDSCH or PUSCH to a single UE, the RNTI can be the cell RNTI (C-RNTI), the configured scheduling RNTI (CS-RNTI), or the modulation and coding scheme cell RNTI (MCS-C-RNTI), and is used as the UE identifier. For brevity, C-RNTI will only be mentioned below when necessary. The UE typically receives / listens to PDCCH according to the USS for detection of the DCI format with a CRC scrambled by the C-RNTI. For DCI formats 0_0 and 1_0 that schedule PUSCH transmission and PDSCH reception to the UE respectively, the UE can be additionally configured to listen to the corresponding PDCCH according to the CSS.

[0111] For the DCI format of a PDSCH that dispatches System Information (SI), the RNTI can be SI-RNTI. For the DCI format of a PDSCH that dispatches Random Access Response (RAR), the RNTI can be RA-RNTI. For the DCI format of a PDSCH that dispatches Paging Information, the RNTI can be P-RNTI. The UE (such as UE 116) listens for PDCCHs for these DCI formats on the primary cell according to the corresponding CSS. There are also many other RNTIs that are provided to the UE via UE-specific RRC signaling and are associated with DCI formats that provide various control information and have corresponding PDCCHs that the UE listens for according to the CSS. Such DCI formats include DCI format 2_0, which provides a time slot structure in terms of DL, UL, or flexible / reserved symbols across many time slots; DCI format 2_2, which provides transmit power control (TPC) commands for PUSCH or PUCCH transmissions; and DCI format 2_3, which provides TPC commands for SRS transmissions and may also potentially trigger SRS transmissions for multiple cells, etc.

[0112] CSI reports from the UE can be periodic and multiplexed in PUCCH transmissions, semi-persistent and multiplexed in periodic PUCCH or PUSCH transmissions configured by higher layers, or aperiodic and multiplexed in PUSCH or PUCCH transmissions scheduled via DCI format in the PDCCH. CSI reports may include Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), CSI-RS Resource Indicator (CRI), Synchronization Signal (SS) Physical Broadcast Channel (PBCH) Block Resource Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), Layer 1 Reference Signal Received Power (L1-RSRP), or Layer 1 Signal-to-Interference-and-Noise Ratio (L1-SINR).

[0113] The CSI payload can depend on the reported RI value, as the RI value determines the bit width of the precoding matrix indicator (PMI) and the number of codewords (CWs). For example, a PDSCH transmission with one CW may be suitable for RI ≤ 4, while a PDSCH transmission with two CWs may be suitable for RI > 4. The number of CQIs is determined based on the number of CWs. For example, there is one CQI per CW for one report per CQI reporting band (“wideband” or “subband”). Additionally, when the UE is configured with multiple non-zero power (NZP) CSI-RS resources and reports CRIs, the RI / PMI / CQI payload can depend on the CRI value associated with a variable number of antenna ports and different CSI-RS resources. Therefore, CSI reporting with two parts (part 1 CSI and part 2 CSI) is required, as the payload of part 1 CSI reporting can be predetermined, while the payload of part 2 CSI reporting can be variable. Part 1 CSI includes the RI, CRI, and CQI for the first CW, and for Type II CSI, it includes additional information such as the number of non-zero amplitude coefficients for both layers and has a predetermined payload. Part 2 CSI includes the RI, CRI, and CQI for the second CW, and generally has a variable payload determined based on the information provided in Part 1 CSI. There are also conditions where the payload of the second part does not depend on the content of the first part. In such scenarios, using a two-part CSI report can be simplified to a single-part CSI report.

[0114] Subbands used for CSI reporting are defined as a set of consecutive PRBs. The number of PRBs in a subband can be predetermined in system operation as a function of the DL system bandwidth, such as the active DL bandwidth portion (BWP), or provided by a higher layer, or provided in DCI format in the PDCCH. The number of PRBs in a subband can be included in the CSI reporting configuration. A “CSI reporting band” is defined as a set of consecutive or discontinuous subbands used for CSI reporting. For example, a CSI reporting band may include all subbands within an active DL BWP (wideband CSI reporting). Alternatively, a CSI reporting band may include only the set of subbands within an active DL BWP, and is also referred to as a partial band CSI reporting.

[0115] A UE (such as UE 116) can be configured to report CSI using at least one CSI reporting band. This configuration can be implemented by a higher layer or via the DCI format in the PDCCH. When configured to report CSI via multiple CSI reporting bands, such as when operating at mmWave carrier frequencies, the UE can report CSI for any subset of the multiple CSI reporting bands. The number of CSI reporting bands in the subset can be provided by a higher layer or indicated via the DCI format in the PDCCH that triggers the CSI reporting. The UE can also recommend a value for the number of CSI reporting bands.

[0116] For CSI report generation, various configurations of the CSI-ReportConfig information element (IE) can be provided for the UE (such as UE 116). The configuration of the CSI-ReportConfig IE may include (a) a table for mapping CQI values ​​to MCS values ​​or SE values, (b) whether the CSI report includes a single (wideband) CQI or multiple (subband) CQIs, (c) the signal to be measured and the amount of CQI to be reported, (d) the period and offset used for PUCCH transmission when the CSI report is multiplexed in PUCCH, and (e) PUCCH resources used for PUCCH transmission, etc.

[0117] A-CSI reports can be triggered by a DCI format, and the UE can multiplex A-CSI reports in relevant PUSCH transmissions, with or without data information from the UL Shared Channel (UL-SCH), or in relevant PUCCH transmissions. One value / status of the field indicates that there is no A-CSI report to be multiplexed in a PUSCH transmission. Other values ​​of the field are configured by a higher layer to map to one or more configurations of the CSI-ReportConfig IE that determine the content of the A-CSI report, for example, as described in Reference 5. An aperiodic SRS resource set can be provided to the UE, and the NZP-CSI-RS configuration can be instructed to determine the CSI report by the value of the SRS request field in the DCI format that schedules the PUSCH transmission with the A-CSI report, wherein the SRS request field value indicates an SRS resource set including the identifier of the NZP-CSI-RS configuration.

[0118] Triggering A-CSI reports by scheduling the DCI format of PDSCH reception is also beneficial, as CSI reports are typically associated with PDSCH reception, and the UE does not need to be configured to listen to PDCCH for detection of the DCI format of scheduled PUSCH transmissions. For example, a UE configured to receive PDSCH only for Multicast-Broadcast Services (MBS) can be configured with a search space set, only for PDSCH reception that provides the DCI format for scheduled MBS PDSCH reception. Including A-CSI report triggers and indications for NZP-CSI-RS configuration corresponding to CSI reports in the DCI format of scheduled PDSCH reception can provide predefined functionality for multiplexing A-CSI reports in PUCCH transmissions. PUCCH transmissions can be the same as or different from PUCCH transmissions in which the UE reports HARQ-ACK information in response to the decoding result of the TB in the PDSCH.

[0119] A UE can be configured to communicate with different service types that require separate CSI reports. For example, since MBS PDSCH reception comes from multiple UEs, the corresponding Transport Configuration Indicator (TCI) state can correspond to a wide beam, while the TCI state of unicast PDSCH reception can correspond to a narrow beam. Therefore, it is beneficial, for example, for MBS PDSCH and for unicast PDSCH, to allow the UE to provide separate CSI reports for different service types with corresponding PDSCH receptions associated with different TCI states.

[0120] Since the UE can be configured to receive PDSCH according to different TCI states on the active DL BWP of the serving cell, it is beneficial for the UE to provide a CSI report for each TCI state. To minimize latency and signaling overhead, means should be established to enable the UE to provide multiple CSI reports in the same PUCCH or PUSCH transmission, corresponding to multiple TCI states associated with multiple corresponding SS / PBCH blocks or CSI-RS received by the UE in the active DL BWP of the serving cell.

[0121] A UE (such as UE 116) can also be configured to receive PDCCHs in a control resource set (CORESET) using a spatial filter associated with the TCI state corresponding to that CORESET. When the UE listens for PDCCH candidates during time-overlapping PDCCH timings in multiple CORESETs associated with different spatial reception parameters also known as quasi-co-location (QCL) "typeD" attributes, the UE listens for PDCCHs only in CORESETs with the same typeD attribute as the following: if any, the CSS set with the lowest index in the cell where the UE is configured to listen for PDCCHs according to the CSS; otherwise, the UE listens for PDCCHs only in CORESETs with the same typeD attribute as the following: the USS set with the lowest index in the cell where the UE is configured to listen for PDCCHs according to the CSS. The index of the CSS set or USS set is for the corresponding set that has at least one PDCCH candidate during the overlapping PDCCH listening timings. To determine the CORESET, SS / PBCH blocks are considered to have a different "typeD" attribute compared to CSI-RS, and the first CSI-RS in the first cell and the second CSI-RS in the second cell associated with the same SS / PBCH block are assumed to have the same "typeD" attribute. The allocation of non-overlapping CCEs and PDCCH candidates for PDCCH monitoring is based on all search space sets associated with multiple CORESETs on the active DL BWPs of one or more cells, and the number of active TCI states is determined based on multiple CORESETs.

[0122] A UE (such as UE 116) may have multiple antenna panels and may simultaneously receive signals using different spatial filters associated with different TCI states. For example, the UE may use a first antenna panel to receive unicast PDSCH with a first spatial filter associated with a first TCI state, and a second antenna panel to receive MBS PDSCH with a second spatial filter associated with a second TCI state. For example, the UE may use a first antenna panel to receive PDSCH from a first transmit / receive point (TRP) with a first spatial filter associated with a first TCI state, and a second antenna panel to receive PDSCH from a second transmit / receive point (TRP) with a second spatial filter associated with a second TCI state. The UE may also utilize the ability to simultaneously receive signals with multiple spatial filters to perform PDCCH reception in CORESETs associated with different TCI states.

[0123] When the UE is triggered to send a CSI report in a PUSCH transmitted in a repetitive manner, the UE multiplexes the CSI report in the first repetition of the PUSCH transmission. Preparation time for the UE to send a PUSCH with a multiplexed CSI report. Longer preparation time T for UE to send PUSCH without CSI report proc,2 And the differences can be significant. For example, for a 15kHz SCS, T proc,2 = 0.79 milliseconds, while Milliseconds. Therefore, requiring the multiplexing of CSI reports in the first repetition of a PUSCH transmission necessitates a delay in the PUSCH transmission, and this requirement for PUSCH scheduling delay further penalizes the latency and spectral efficiency of PUSCH transmissions with repetitions. Furthermore, when the UE supports measurements of multiple NZP-CSI-RS to multiplex the corresponding CSI reports in the same PUSCH or PUCCH transmission, the required latency may be significantly higher compared to measurements corresponding to a single NZP-CSI-RS. A larger value.

[0124] Therefore, embodiments of this disclosure take into account the need to provide means for the UE to measure reference signals associated with different TCI states and trigger corresponding CSI reports in PUSCH or PUCCH transmissions. Embodiments of this disclosure also take into account the need to determine the processing time for the UE to multiplex multiple CSI reports obtained from reference signals with different TCI states on an active DL BWP of the same serving cell in PUSCH or PUCCH transmissions. Embodiments of this disclosure further take into account the need to determine the repetition of PUSCH or PUCCH transmissions for the UE to multiplex CSI reports while minimizing the corresponding scheduling delay of PUSCH or PUCCH transmissions. Additionally, embodiments of this disclosure take into account the need to determine the process for the UE to simultaneously receive PDCCHs in multiple CORESETs associated with different TCI states.

[0125] Therefore, embodiments of this disclosure relate to providing means for a UE to measure reference signals associated with different TCI states and trigger corresponding CSI reports in PUSCH or PUCCH transmissions. Embodiments of this disclosure also relate to determining the processing time for a UE to multiplex multiple CSI reports obtained from reference signals with different TCI states on an active DL BWP of the same serving cell in PUSCH or PUCCH transmissions. Embodiments of this disclosure further relate to determining the repetition of PUSCH or PUCCH transmissions for UE to multiplex CSI reports while minimizing the corresponding scheduling delay of the PUSCH or PUCCH transmissions. Additionally, embodiments of this disclosure relate to determining a process for a UE to simultaneously receive PDCCHs in multiple CORESETs associated with different TCI states.

[0126] As used herein, the term "higher layer" refers to control information provided to the UE in PDSCH reception, such as RRC or MAC control elements (CE).

[0127] Embodiments of this disclosure describe measurements that trigger multiple reference signals and corresponding CSI reports. In, for example... Figure 8 and Figure 9 This is described in the following examples and embodiments, such as those examples and implementations.

[0128] Figure 8 An example method 800 is shown, according to an embodiment of the present disclosure, for instructing multiple NZP-CSI-RS configurations for a UE to perform measurements and provide multiple corresponding CSI reports. Figure 9 An example method 900 according to embodiments of the present disclosure is shown for instructing a UE to configure multiple NZP-CSI-RS resources via a DCI format without scheduling PUSCH transmissions for the UE to perform measurements and provide multiple corresponding CSI reports. The steps of methods 800 and 900 can be performed by… Figure 1 Any of UE 111-119 (such as Figure 3 The UE 116) is executed. Methods 800 and 900 are for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0129] Embodiments of this disclosure contemplate mechanisms for triggering measurements of multiple reference signals on an active DL BWP of the serving cell and for multiplexing corresponding CSI reports in PUSCH or PUCCH transmissions. For example, the reference signals may be SS / PBCH blocks or NZP-CSI-RS. For brevity, NZP-CSI-RS is referenced in the descriptions and examples associated with triggering measurements of multiple reference signals and corresponding CSI reports. However, measurements may also be based on CSI-IM resources, but such repeated descriptions are omitted for brevity.

[0130] In the first method, the DCI format for scheduling PUSCH transmissions may include at least one of the following: (i) an SRS Resource Indicator (SRI) field having a value indicating a non-periodic SRS resource set including / mapped to multiple NZP-CSI-RS resources; (ii) a CSI Request field having a value indicating multiple NZP-CSI-RS resources and multiple corresponding CSI report configurations, wherein the corresponding mapping may be provided in advance by a higher layer; or (iii) (in addition to the CSI Request field) a separate field (other than the SRI field or CSI Request field) indicating multiple NZP-CSI-RS resources from multiple NZP-CSI-RS resource sets.

[0131] In some embodiments, multiple NZP-CSI-RS resources reside on the active DL BWP of the serving cell. Indication can be based on the identifier of the NZP-CSI-RS resource. Different NZP-CSI-RS resources may include different TCI states. When the field is used for a CSI request, the value can be mapped to both the CSI report configuration and the NZP-CSI-RS resource configuration. Upon detecting a DCI format and indicating multiple NZP-CSI-RS configurations based on the field value, the UE performs measurements according to the multiple NZP-CSI-RS configurations and determines multiple corresponding CSI reports based on the corresponding configuration indicated by the CSI request field. Alternatively, instead of providing a mapping to multiple CSI report configurations, the value of the CSI request field may provide the same CSI report configuration for all multiple CSI reports.

[0132] like Figure 8 The method 800 described herein is an example procedure for instructing multiple NZP-CSI-RS configurations for the UE to perform measurements and provide multiple corresponding CSI reports by scheduling the DCI format of PUSCH transmissions.

[0133] In step 810, the UE (such as UE 116) receives a configuration of a set of NZP-CSI-RS resources, wherein each NZP-CSI-RS resource includes an identifier and configuration of corresponding parameters, such as resource mapping, power offset, or transmission period. In step 820, the UE detects a scheduled PUSCH transmission in DCI format, including a field indicating the values ​​of multiple NZP-CSI-RS resources on the active DL BWP of the serving cell. This field may be an SRI field, a CSI request field, or a separate field indicating the NZP-CSI-RS resource. In step 830, the UE performs multiple measurements based on the indicated multiple NZP-CSI-RS resources. In step 840, the UE multiplexes multiple CSI reports of the multiple corresponding measurements in the PUSCH transmission.

[0134] In some embodiments, when a UE multiplexes multiple CSI reports based on multiple corresponding measurements for NZP-CSI-RS resources, the UE may require additional processing time for the measurements. This additional processing time can be based on UE capabilities. For example, for two measurements on the active DL BWP of the serving cell used to determine two corresponding CSI reports for two corresponding NZP-CSI-RS resources, the UE can notify the serving gNB of a first capability or a second capability, in which the first capability does not require additional processing time to perform the two measurements. Applicable, in the second capability, additional processing time is required to perform two measurements and new Applicable, among which, It can be defined in the system operation specifications or can be notified by the UE as part of the capability signaling.

[0135] NZP-CSI-RS resources can be overlapping or non-overlapping in time. For UEs that cannot receive simultaneously using different spatial filters, such as UEs that can receive using only one antenna panel at a given time, NZP-CSI-RS resources can be non-overlapping in time, and can be further separated by the UE changing its spatial filter to meet the time requirements for reception. The time between the start or end of the first NZP-CSI-RS resource and the start or end of the last NZP-CSI-RS resource can also be... The amount or from Subtract from the middle. The UE can then perform NZP-CSI-RS measurements sequentially over time.

[0136] For UEs that can receive simultaneously using different spatial filters, such as UEs that can receive using two antenna panels at a given time, NZP-CSI-RS resources can overlap in time. The different values ​​and the case of a single receiving antenna panel The value can be compared, and then it can be applicable, for example, when the UE has a separate baseband processing unit for a separate receive antenna panel.

[0137] In the second method, the DCI format received by the UE-scheduled PDSCH may include at least one of the following: (i) a CSI request field having values ​​indicating multiple NZP-CSI-RS resources and multiple corresponding CSI report configurations, wherein the mapping between the CSI request field and the values ​​of the NZP-CSI-RS resources and CSI report configurations may be provided in advance by a higher layer, or (ii) a separate field, in addition to the CSI request field, for indicating multiple NZP-CSI-RS resources from one or more sets of NZP-CSI-RS resources.

[0138] In some embodiments, the DCI format may indicate a single CSI report configuration and a single NZP-CSI-RS resource. Multiple NZP-CSI-RS resources exist on the active DL BWP of the serving cell. The indication may be based on the identifier of the NZP-CSI-RS resource. For example, different NZP CSI-RS resources may include different TCI states.

[0139] In addition to the functions previously described for scheduling PUSCH transmissions using the DCI format, scheduling PDSCH reception using the DCI format requires providing time slot timing for PUCCH (or PUSCH) transmissions that the UE uses to multiplex multiple CSI reports, and also requires providing corresponding PUCCH (or PUSCH) resources. The time slot used for PUCCH transmissions can be a first time slot, greater than or equal to the processing time for multiplexing multiple CSI reports, after the end of the PDCCH providing the DCI format, such as... or Furthermore, the DCI format may include a field providing an additional time slot offset relative to the first time slot, or the time slot offset may be provided to the UE in advance by a higher layer. Alternatively, the field may directly indicate the time slot for PUCCH (or PUSCH) transmission. PUCCH (or PUSCH) resources may be provided to the UE in advance by a higher layer, or the field in the DCI format may indicate PUCCH (or PUSCH) resources derived from a set of resources provided to the UE in advance by a higher layer. Furthermore, as described in Reference 3, the UE may determine fewer RBs for PUCCH (or PUSCH) transmission than the number of RBs for PUCCH (or PUSCH) resources based on the configured code rate. The code rate for determining the number of RBs for multiplexing CSI reports may be provided separately from the code rate used by the UE to determine the number of RBs for multiplexing HARQ-ACK information, or the same code rate may be applied to both CSI reports and HARQ-ACK information. Furthermore, if modulation other than QPSK is also used, the modulation order of the PUCCH resources may be considered in addition to the code rate.

[0140] In the third method, the DCI format for PUSCH transmissions not scheduled from the UE or PDSCH receptions performed by the UE may include a CSI request field with values ​​indicating multiple CSI report configurations and multiple corresponding NZP-CSI-RS resources, wherein the mapping between the CSI request field and the values ​​of the NZP-CSI-RS resources and CSI report configurations may be provided in advance by a higher layer. Alternatively, the DCI format may include separate fields indicating the corresponding configurations of multiple CSI report configurations and multiple NZP-CSI-RS resources. It is also possible that the DCI format indicates the configuration of a single CSI report configuration and a single NZP-CSI-RS resource. Multiple NZP-CSI-RS resources are on the active DL BWP of the serving cell. For the time slot timing values ​​of PUCCH (or PUSCH) transmissions multiplexed by the UE for CSI reporting and for the corresponding PUCCH (or PUSCH) resources, the same procedure may be applied to the second method of scheduling the DCI format for PDSCH receptions to trigger CSI reporting. For example, time slot timing values ​​can be provided by a single field typically applicable to all UEs that trigger CSI reports via DCI format, or they can be provided in advance to each UE by a higher layer. For example, PUCCH (or PUSCH) resources can be provided in advance to each UE by a higher layer. CRC bits in DCI format can be scrambled by an RNTI other than C-RNTI, and the UE can provide DCI format PDCCH according to CSS or according to USS reception.

[0141] The UE (such as UE 116) can have the position of the CSI request field in the DCI format or the field indicating multiple NZP-CSI-RS resources provided in advance by a higher layer (these two fields can be located consecutively for the UE, and only the position of the first field needs to be provided by a higher layer). The size of the CSI request field or the size of the field indicating multiple NZP-CSI-RS resources can be specified during system operation or provided by a higher layer. Alternatively, when the DCI format is at most N UE When a UE triggers NZP-CSI-RS reception and the corresponding CSI report, the DCI format may include a maximum of N values ​​in ascending order corresponding to the values ​​indicating the corresponding CSI report. UE NZP-CSI-RS resource for each CSI request field UE Fields. CSI request fields can be consecutive and followed by multiple NZP-CSI-RS resource configuration fields. Additionally, at least for DCI formats that do not schedule PUSCH transmissions, CSI report configuration can also be provided in advance by a higher layer, and fields in the DCI format indicate the presence or absence of NZP-CSI-RS resources used by the UE to perform measurements and provide corresponding CSI reports based on the CSI report configuration.

[0142] like Figure 9 The method 900 described herein is an example procedure for instructing the UE to configure multiple NZP-CSI-RS resources for the UE to perform measurements and provide multiple corresponding CSI reports via a DCI format that does not schedule PUSCH transmissions.

[0143] In step 910, the UE (such as UE 116) receives a configuration of a set of NZP-CSI-RS resources, wherein each NZP-CSI-RS resource includes an identifier and configuration of corresponding parameters, such as resource mapping, power offset, or period. In step 920, the UE detects a DCI format that does not schedule PUSCH transmissions. For example, the DCI format may be a DCI format that schedules PDSCH reception or a DCI format that does not schedule PUSCH transmissions or PDSCH receptions. The DCI format includes fields with values ​​indicating configurations for multiple CSI reports and fields indicating NZP-CSI-RS resources on the active DL BWP of the serving cell. The TCI state can be configured separately for each NZP-CSI-RS resource.

[0144] In step 930, the UE performs measurements according to the indicated NZP-CSI-RS resources. In step 940, the UE multiplexes the corresponding measurement CSI report in the PUCCH transmission. In step 950, the UE transmits the PUCCH in a first time slot, which is a time greater than or equal to the processing time for the UE to perform measurements and multiplex the CSI report in the PUCCH transmission, after receiving the PDCCH in DCI format, and in resources provided in advance by a higher layer.

[0145] It is also possible that the DCI format includes a field indicating a timeslot offset relative to the end of a PUCCH transmission including PDCCH reception or relative to a first timeslot, or that the timeslot offset may be provided in advance by a higher layer. It is also possible that the DCI format includes a field indicating PUCCH resources derived from a set of PUCCH resources provided in advance by a higher layer. Furthermore, it is possible that the DCI format indicates a single CSI report configuration and a single NZP-CSI-RS resource.

[0146] although Figure 8 Method 800 is shown and Figure 9 Method 900 is shown, but it can be used for... Figure 8 and Figure 9 Various changes can be made. For example, although methods 800 and 900 are shown as a series of steps, the steps can overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps can be omitted or replaced by other steps. For example, the steps of methods 800 and 900 can be run in different orders.

[0147] Embodiments of this disclosure describe determining the repetition of PUSCH transmissions for multiplexing SCI reports. In situations such as... Figure 10A and Figure 10B This is described in the following examples and embodiments, such as those examples and implementations.

[0148] Figure 10A An example method 1000 for a UE to determine duplicate PUSCH transmissions for reuse of CSI reports, according to an embodiment of the present disclosure, is shown. Figure 10B Figure 1050 illustrates a method 1000 with repeated PUSCH transmissions according to an embodiment of the present disclosure. The steps of method 1000 can be performed by… Figure 1 Any of UE 111-119 (such as Figure 3 The method is executed by UE 116. Method 1000 and Figure 1050 are for illustration only, and other embodiments may be used without departing from the scope of this disclosure.

[0149] Embodiments of this disclosure also consider determining the repetition of PUSCH transmissions for UE reuse via CSI reports triggered by the DCI format of the scheduled PUSCH transmissions.

[0150] In some embodiments, multiplexing CSI reports in predetermined repetitions of PUSCH transmissions, such as the first or last repetition, is detrimental because it imposes constraints on the gNB scheduler, potentially leading to greater latency, lower throughput, or more outdated CSI reports. For example, considering the UE processing time measured for determining and multiplexing CSI reports in the PUSCH, multiplexing CSI reports in the first PUSCH repetition would require the gNB scheduler to delay the scheduling of PUSCH transmissions, for example, from T, the time required for the UE to prepare for PUSCH transmission for the 15kHz SCS. proc,2 =0.79 milliseconds to the time required for the UE to prepare a PUSCH transmission with a multiplexed CSI report. Milliseconds. Multiplexing CSI reports in the final PUSCH repetition causes unnecessary delays in the gNB receiving the CSI reports. Generally, multiplexing CSI reports in any fixed number of repetitions used for PUSCH transmissions is likely suboptimal.

[0151] Considering the UE processing time required for multiplexing CSI reports in PUSCH is The repetition of PUSCH transmissions reported by the UE multiplexing CSI can occur at least after the last symbol of the PDCCH reception in DCI format, which is provided for scheduling repetitive PUSCH transmissions. The first repetition.

[0152] like Figure 10A Method 1000 and as shown Figure 10B Figure 1050 illustrates the process by which the UE determines duplicates of PUSCH transmissions for reuse of CSI reports.

[0153] In step 1010, the UE (such as UE 116) detects a DCI format PUSCH transmission with repetition 1052 and triggers a CSI report, wherein the UE multiplexes the CSI report in one repetition of the PUSCH transmission. In step 1020, the UE determines that the PUSCH transmission occurs at least after the end (last symbol) of the PDCCH reception 1056 providing the DCI format. The earliest repeat to begin is 1054. In step 1030, the UE multiplexes the CSI report in the earliest repeat of the PUSCH transmission.

[0154] Different repetitions of PUSCH transmissions can include different UCI types (such as HARQ-ACK information and CSI reports). To improve the reception reliability of TB and UCI types in PUSCH transmission repetitions, additional conditions can be applied to the UE to determine the repetition used for multiplexing CSI reports. One such condition could be whether the UE also multiplexes other UCIs, such as HARQ-ACK information, in PUSCH transmission repetitions besides CSI reports. The UE can then determine the repetition used for multiplexing CSI reports as a first repetition that (a) occurs at least after the end of the reception of the PDCCH in the DCI format that provides the scheduling of PUSCH transmissions (or after the last symbol of the PDCCH CORESET received by the UE). (b) It begins and does not include another UCI type such as HARQ-ACK information.

[0155] although Figure 10A Method 1000 is shown, but it is possible to... Figure 10A Various changes can be made. For example, although method 1000 is shown as a series of steps, the steps can overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps can be omitted or replaced by other steps. For example, the steps of method 1000 can be run in different orders.

[0156] Embodiments of this disclosure describe the determination of a CORESET for receiving a PDCCH. In, for example... Figure 11 and Figure 12 This is described in the following examples and embodiments, such as those examples and implementations.

[0157] Figure 11 and Figure 12Example methods 1100 and 1200, according to embodiments of the present disclosure, are shown for a UE that can be simultaneously received with two spatial filters to determine CORESETs with different QCL "typeD" attributes for listening to PDCCH candidates during time-overlapping PDCCH timings. The steps of methods 1100 and 1200 can be performed by... Figure 1 Any of UE 111-119 (such as Figure 3 The UE 116) performs the operation. Methods 1100 and 1200 are for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0158] Embodiments of this disclosure also contemplate a process for a UE to determine the CORESET for simultaneous PDCCH reception when the CORESET is associated with different TCI states and the UE is capable of multiple simultaneous receptions using multiple corresponding spatial filters.

[0159] In some embodiments, when a UE listens for PDCCH candidates during overlapping PDCCH timings in multiple CORESETs with different TCI states and associated with different spatial reception parameters, also known as QCL "typeD" attributes, the UE listens for PDCCH only in CORESETs that have the same "typeD" attribute as the following: if any, the CSS set with the lowest index in the cell containing the CSS; otherwise, the USS set with the lowest index in the cell. The index of the CSS set or USS set is for the corresponding set that has at least one PDCCH candidate during the overlapping PDCCH listening timings. For the purpose of determining CORESETs, SS / PBCH blocks are considered to have different "typeD" attributes compared to CSI-RS, and the first CSI-RS in the first cell and the second CSI-RS in the second cell associated with the same SS / PBCH block are assumed to have the same "typeD" attribute. The allocation of non-overlapping CCEs and PDCCH candidates for PDCCH monitoring is based on all search space sets associated with multiple CORESETs on the active DL BWPs of one or more cells, and the number of active TCI states is determined based on multiple CORESETs.

[0160] The UE can report its ability to use the number of spatial filters it can simultaneously receive. For example, the number of spatial filters can be one or two.

[0161] In the first method, when a UE (such as UE 116) reports the ability to use multiple spatial filters for time-overlapping reception and the UE is listening for PDCCH candidates in time-overlapping PDCCH timings across multiple CORESETs associated with different spatial reception parameters (different TCI states with different QCL "typeD" attributes), the UE can first allocate spatial filters for PDCCH reception in CORESETs with different TCI states, starting from the cell with the lowest index in ascending order of the corresponding CSS set index, then in ascending order of the cell index, then starting from the cell with the lowest index in ascending order of the USS set index, then in ascending order of the cell index. The first method prioritizes PDCCH listening across CSS sets of cells.

[0162] For example, when four conditions are met, during PDCCH listening, the UE receives PDCCH on any cell from many cells, based on a CSS set or USS set associated with a CORESET having a first TCI state or a second TCI state. In this example, the first condition specifies that the UE can support simultaneous reception with two spatial filters. The second condition specifies that the first CSS set with index 0 used for PDCCH listening on the cell with index 0 is associated with the first CORESET having the first TCI state, and there is no CSS set on the cell with index 0 that is not associated with the first TCI state. The third condition specifies that the second CSS set with index 1 used for PDCCH listening on the cell with index 1 is associated with the second CORESET having the second TCI state (different from the first TCI state). The fourth condition specifies that the UE is configured to receive PDCCH on many cells, including cells with indices 0 and 1, based on a many CSS sets or USS sets including the first and second CSS sets, during PDCCH listening.

[0163] For example, under four conditions, during PDCCH listening, the UE receives PDCCH on any cell from many cells based on a CSS set or USS set associated with a CORESET having a first TCI state or a second TCI state from many USS sets. In this example, the first condition specifies that the UE can support simultaneous reception with two spatial filters. The second condition specifies that the CSS set used for PDCCH listening on a cell is associated with a first CORESET having a first TCI state. The third condition specifies that the first USS set with index 0 used for PDCCH listening on a cell with index 0 is associated with a second CORESET having a second TCI state (different from the first TCI state). The fourth condition specifies that the UE is configured to receive PDCCH only for the CSS set associated with a CORESET having a first TCI state and for the USS set including the first USS set, and on many cells including the cell with index 0, during PDCCH listening.

[0164] In the second method, when the UE reports its ability to use multiple spatial filters for time-overlapping reception and the UE is listening for PDCCH candidates in time-overlapping PDCCH timings across multiple CORESETs associated with different TCI states (different QCL "typeD" attributes) resulting in different spatial reception parameters, the UE can first allocate spatial filters in ascending order of the corresponding CSS set index, then in ascending order of the USS set index starting from the cell with the lowest index, and then in ascending order of the cell index, to allocate spatial filters for PDCCH reception in CORESETs with different TCI states. The second method prioritizes PDCCH listening across search spatial sets in ascending order of cell index starting from the CSS set and increases the probability that the UE can be scheduled for unicast services during PDCCH listening timings.

[0165] For example, when five conditions are met, during PDCCH listening, the UE receives PDCCH on any cell from many cells based on any CSS set or USS set associated with a CORESET having a first TCI state or a second TCI state. In this example, the first condition specifies that the UE can support simultaneous reception with two spatial filters. The second condition specifies that the first CSS set used for PDCCH listening on the cell with index 0 is associated with the first CORESET having the first TCI state. The third condition specifies that the first USS set used for PDCCH listening on the cell with index 0 is associated with the second CORESET having the second TCI state (different from the first TCI state). The fourth condition specifies that the second CSS set used for PDCCH listening on the cell with index 1 is associated with the third CORESET having the third TCI state. The fifth condition specifies that the UE is configured to receive PDCCH on many cells, including the cell with index 0 and the cell with index 1, based on a CSS set and a USS set including the first CSS set, the second CSS set, and the first USS set, during PDCCH listening.

[0166] The UE (such as UE 116) can also be configured via higher-layer signaling from the serving gNB (such as BS 102) to determine whether to apply the first method or the second method to the determination of the search space set for listening to PDCCH at the PDCCH listening time. Furthermore, in order to determine time-overlapping PDCCH reception in CORESETs with different TCI states, the UE can also consider the time required for the UE to change the spatial filter used for PDCCH reception from a first spatial filter associated with a first TCI state of a first CORESET to a second spatial filter associated with a second TCI state of a second CORESET as the overlapping portion.

[0167] like Figure 11 The method 1100 shown illustrates an example process for a first method of determining CORESET with different QCL “typeD” attributes using UEs that can be simultaneously received by two spatial filters for listening to PDCCH candidates in time-overlapping PDCCHs.

[0168] In step 1110, a UE (such as UE 116) with two available spatial receive filters for time-overlapping reception determines the time-overlapping PDCCH reception in the CORESET of the serving cell. In step 1120, the UE determines whether there is any CORESET associated with a CSS set that does not have an allocated spatial receive filter on the corresponding serving cell.

[0169] When (as determined in step 1120) there is a CORESET associated with a CSS set that has not been allocated a spatial reception filter, the UE allocates a spatial reception filter to the first CORESET in step 1130. The first CORESET is associated with the CSS set with the lowest index that has resources on the serving cell with the lowest index from the CSS set, and spatial reception filters are allocated to any other CORESET that has the same TCI state as the first CORESET. The UE also reduces the number of available spatial reception filters by 1.

[0170] Alternatively, if (as determined in step 1120) there is no CORESET associated with the CSS set without an assigned spatial receive filter, the UE determines in step 1140 whether there is any CORESET associated with the USS set without an assigned spatial receive filter.

[0171] When (as determined in step 1140) there exists a CORESET associated with a USS set that has not been allocated a spatial receive filter on the corresponding serving cell, the UE, in step 1150, allocates a spatial receive filter to a second CORESET associated with the lowest-indexed USS set that has resources on the serving cell with the lowest index from the USS set, and to any other CORESET with the same TCI state as the second CORESET. The UE also reduces the number of available spatial receive filters by 1.

[0172] Alternatively, when (as determined in step 1140) there is no CORESET associated with the USS set that has not been allocated a spatial receive filter on the corresponding serving cell, the spatial receive filter allocation process for time-overlapping PDCCH reception in the CORESET terminates (step 1160).

[0173] After performing step 1130 or 1150, the UE determines whether the number of available spatial receiving filters is greater than zero. If the number of available spatial receiving filters is greater than zero (as determined in step 1170), the UE returns to step 1120. Alternatively, if the number of available spatial receiving filters is not greater than zero (as determined in step 1170), the process terminates in step 1180.

[0174] like Figure 12 Method 1200 illustrates an example procedure for determining a CORESET with different QCL “typeD” attributes for a UE that can be simultaneously received by two spatial filters, in order to listen to PDCCH candidates in time-overlapping PDCCHs.

[0175] In step 1210, a UE (such as UE 116) with two available spatial receive filters for time-overlapping reception determines the time-overlapping PDCCH reception in the CORESET on the serving cell. In step 1215, the UE sets the serving cell to the serving cell with the lowest index. In step 1220, the UE determines whether there are any CORESETs associated with the CSS set that do not have an assigned spatial receive filter on the serving cell.

[0176] When (as determined in step 1220) there exists a CORESET associated with a CSS set that has not been allocated a spatial receive filter on the serving cell, the UE allocates a spatial receive filter in step 1225 to the first CORESET associated with the CSS set with the lowest index from the CSS set and to any other COREET having the same TCI state as the first CORESET. The UE reduces the number of available spatial receive filters by 1.

[0177] Alternatively, in step 1230, the UE determines whether the number of remaining spatial receiving filters is greater than zero.

[0178] When the number of remaining spatial receiver filters is not greater than zero (as determined in step 1230), the spatial receiver filter allocation process for time-overlapping PDCCH reception in CORESET terminates (step 1235).

[0179] Alternatively, if (as determined in step 1230) there is no CORESET associated with the CSS set that has no allocated spatial receive filter on the serving cell, the UE determines in step 1250 whether there is any CORESET associated with the USS set that has no allocated spatial receive filter on the serving cell.

[0180] When (as determined in step 1240) there exists a CORESET associated with a USS set that has not been allocated a spatial receive filter on the serving cell, the UE allocates a spatial receive filter in step 1245 to a second CORESET associated with the USS set with the lowest index from the USS set and to any other COREET having the same TCI state as the second CORESET. Additionally, the UE reduces the number of available spatial receive filters by 1.

[0181] Alternatively, in step 1250, the UE determines whether the number of remaining spatial reception filters is greater than zero. When (as determined in step 1250) the number of remaining spatial reception filters is not greater than zero, the spatial reception filter allocation process for time-overlapping PDCCH reception in CORESET terminates (step 1255).

[0182] When (as determined in step 1250) there is no unallocated spatial receive filter associated with the USS set on the serving cell, the UE sets the serving cell index to the next lowest serving cell index in step 1260. Thereafter, the spatial receive filter allocation process for time-overlapping PDCCH reception in the CORESET is repeated, starting from step 1220.

[0183] although Figure 11 Method 1100 is shown and Figure 12 Method 1200 is shown, but it is possible to... Figure 11 and Figure 12 Various changes can be made. For example, although methods 1100 and 1200 are shown as a series of steps, the steps can overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps can be omitted or replaced by other steps. For example, the steps of methods 1100 and 1200 can be run in different orders.

[0184] The flowcharts above illustrate example methods that can be implemented in accordance with the principles of this disclosure, and various modifications can be made to the methods described herein in the flowcharts. For example, although shown as a series of steps, the individual steps in each diagram can overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps can be omitted or replaced by other steps.

[0185] Figure 13 This is a block diagram of the internal configuration of a base station according to an embodiment.

[0186] like Figure 13 As shown, a base station according to an embodiment may include a transceiver 1310, a memory 1320, and a processor 1330. The transceiver 1310, memory 1320, and processor 1330 of the base station can operate according to the communication method of the base station described above. However, the components of the base station are not limited thereto. For example, the base station may include more or fewer components than those described above. Alternatively, the processor 1330, transceiver 1310, and memory 1320 may be implemented as a single chip. Similarly, the processor 1330 may include at least one processor.

[0187] Transceiver 1310 generally refers to both base station receivers and base station transmitters, and can transmit signals to / receive signals from a terminal. Signals transmitted to or received from a terminal may include control information and data. Transceiver 1310 may include an RF transmitter for up-converting and amplifying the frequency of the transmitted signal, and an RF receiver for amplifying low-noise signals and down-converting the frequency of the received signal. However, this is only an example of transceiver 1310, and the components of transceiver 1310 are not limited to RF transmitters and RF receivers.

[0188] In addition, transceiver 1310 can receive signals and output signals to processor 1330 via a wireless channel, and can also transmit signals output from processor 1330 via a wireless channel.

[0189] The memory 1320 can store programs and data required for the operation of the base station. Additionally, the memory 1320 can store control information or data included in signals acquired by the base station. The memory 1320 can be a storage medium such as a read-only memory (ROM), random access memory (RAM), hard disk, CD-ROM, and DVD, or a combination of storage media.

[0190] The processor 1330 can control a series of processes to enable the base station to operate as described above. For example, the transceiver 1310 can receive data signals including control signals transmitted by the terminal, and the processor 1330 can determine the result of receiving the control signals and data signals transmitted by the terminal.

[0191] Figure 14 This is a block diagram illustrating the internal structure of a terminal according to an embodiment of the present disclosure. Figure 14 As shown, the terminal of this disclosure may include a transceiver 1410, a memory 1420, and a processor 1430. The transceiver 1410, memory 1420, and processor 1430 of the terminal can operate according to the communication method of the terminal described above. However, the components of the terminal are not limited thereto. For example, the terminal may include more or fewer components than those described above. Alternatively, the processor 1430, transceiver 1410, and memory 1420 may be implemented as a single chip. Similarly, the processor 1430 may include at least one processor.

[0192] Transceiver 1410 generally refers to both terminal receivers and terminal transmitters, and can transmit signals to / receive signals from a base station. Signals transmitted to or received from a base station may include control information and data. In this regard, transceiver 1410 may include an RF transmitter for up-converting and amplifying the frequency of the transmitted signal, and an RF receiver for amplifying low-noise signals and down-converting the frequency of the received signal. However, this is only an example of transceiver 1410, and the components of transceiver 1410 are not limited to RF transmitters and RF receivers.

[0193] In addition, transceiver 1410 can receive signals and output signals to processor 1430 via a wireless channel, and can also transmit signals output from processor 1430 via a wireless channel.

[0194] The memory 1420 can store programs and data required for the operation of the terminal. Additionally, the memory 1420 can store control information or data included in signals received by the terminal. The memory 1420 can be a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media.

[0195] The processor 1430 can control a series of processes to make the terminal work as described above. For example, the transceiver 1410 can receive data signals including control signals, and the processor 1430 can determine the result of receiving the data signals.

[0196] The methods described in the claims or detailed description of this disclosure can be implemented in hardware, software, or a combination of hardware and software.

[0197] When electrical structures and methods are implemented in software, a computer-readable recording medium on which one or more programs (software modules) are recorded can be provided. The one or more programs recorded on the computer-readable recording medium are configured to be executable by one or more processors in an electronic device. The one or more programs include instructions for performing the methods according to the embodiments described in the claims or detailed description of this disclosure.

[0198] Programs (e.g., software modules or software) can be stored in random access memory (RAM), non-volatile memory including flash memory, read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), disk storage devices, optical disc ROM (CD-ROM), digital universal disc (DVD), another type of optical storage device, or a magnetic cartridge. Alternatively, programs can be stored in a memory system that includes some or all of the memory devices mentioned above. Furthermore, each storage device can be included in multiple ways.

[0199] The program can also be stored in an attachable storage device accessible via a communication network such as the Internet, intranet, local area network (LAN), wireless LAN (WLAN), or storage area network (SAN) or a combination thereof. The storage device can be connected to an apparatus according to an embodiment of this disclosure via an external port. Another storage device on the communication network can also be connected to an apparatus executing an embodiment of this disclosure.

[0200] In the foregoing embodiments of this disclosure, the elements included in this disclosure are expressed in singular or plural form according to the embodiments. However, the singular or plural form is suitably chosen for ease of explanation, and this disclosure is not limited thereto. Therefore, elements expressed in plural form may also be configured as a single element, and elements expressed in singular form may also be configured as plural elements.

[0201] Although different examples of user equipment are illustrated, various changes can be made to the figures. For example, the user equipment can include any number of each component in any suitable arrangement. In general, the figures do not limit the scope of this disclosure to any particular configuration. Furthermore, while the figures illustrate operating environments in which the various user equipment features disclosed in this patent document can be used, these features can also be used in any other suitable system.

[0202] Although this disclosure has been described with reference to exemplary embodiments, various changes and modifications may be suggested to those skilled in the art. This application is intended to include such changes and modifications as those falling within the scope of the appended claims. The descriptions in this application should not be construed as implying that any particular element, step, or function is an essential element that must be included within the scope of the claims. The scope of the patent subject matter is defined by the claims. Furthermore, embodiments may be combined with each other as needed. For example, base stations and terminals may operate according to some of the methods proposed in this disclosure when combined. Additionally, the embodiments are based on 5G or NR systems, but other modifications based on the technical ideas of the embodiments may be implemented on other systems such as LTE, LTE-A, LTE-A-Pro systems, etc.

Claims

1. A method for a user equipment (UE), the method comprising: Receive information about the first search space set and the first control resource set CORESET of the first cell, wherein the search space set has an index, is a common search space set (CSS set) or a UE-specific search space set (USS set), and is associated with a CORESET having an index and a Transmission Configuration Indicator (TCI) state; Determine a second search space set relating to time-overlapping PDCCH receptions from the first cell in the second cell, from the first search space set, and from the second CORESET in the first CORESET; and The Physical Downlink Control Channel (PDCCH) is received only in the following categories according to the CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state; (b) a second CORESET, if any, having a second TCI state different from the first TCI state; and (c) any other CORESET from the second CORESET having the same TCI state as the first TCI state or the second TCI state. Wherein, if any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell, and Wherein, the CSS set and USS set associated with the CORESET having the first TCI state are excluded. If they exist, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

2. The method according to claim 1, further comprising: When the time difference between the end of any PDCCH reception in a CORESET with the first TCI state or the second TCI state and the start of any PDCCH reception in a CORESET with the second TCI state or the first TCI state is less than a predetermined positive value, it is determined that the PDCCH receptions in CORESETs with different TCI states are time-overlapping.

3. The method according to claim 1, further comprising: Information regarding the ability to simultaneously receive PDCCH in a first CORESET having a first TCI state and in a second CORESET having a second TCI state different from the first TCI state.

4. The method according to claim 1, further comprising: Receive two Channel State Information Reference Signals (CSI-RS); as well as The channel transmits two Channel State Information (CSI) reports corresponding to the two CSI-RS. The PDCCH from the PDCCH provides downlink control information (DCI) format, and The DCI format triggers the reception of the two CSI-RS.

5. The method according to claim 4, wherein, The two CSI-RS have different TCI states.

6. The method according to claim 4, in, The channel is transmitted in a repetitive manner, and The two CSI reports are included in the earliest repeat, which begins at a time greater than or equal to a first value after the end of PDCCH reception.

7. The method according to claim 1, further comprising: Receive two Channel State Information Reference Signals (CSI-RS) on the cell; as well as The channel transmits two Channel State Information (CSI) reports corresponding to the two CSI-RS. The PDCCH from the PDCCH provides downlink control information (DCI) format, and The DCI format triggers the reception of the two CSI-RS.

8. A user equipment (UE), the UE comprising: A transceiver configured to receive information about a first search space set and a first control resource set (CORESET) for a first cell, wherein the search space set has an index, is a common search space set (CSS) or a UE-specific search space set (USS), and is associated with a CORESET having an index and a Transmission Configuration Indicator (TCI) state; and A processor, operatively coupled to the transceiver, is configured to: determine a second search space set associated with time overlap reception of the Physical Downlink Control Channel (PDCCH) from the first search space set and the second core set from the first core set, for a second cell of the first cell. The transceiver is further configured to receive PDCCH only in the following cases based on a CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state; (b) a second CORESET, if any, having a second TCI state different from the first TCI state; and (c) any other CORESET from the second CORESET having a TCI state identical to the first TCI state or the second TCI state. Wherein, if any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell, and Wherein, the CSS set and USS set associated with the CORESET having the first TCI state are excluded. If they exist, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

9. The UE according to claim 8, wherein, The processor is further configured to determine that PDCCH receptions in CORESETs with different TCI states are time-overlapping when the time difference between the end of any PDCCH reception in a CORESET with the first TCI state or the second TCI state and the start of any PDCCH reception in a CORESET with the second TCI state or the first TCI state is less than a predetermined positive value.

10. The UE according to claim 8, wherein, The transceiver is further configured to transmit information about the ability to simultaneously receive PDCCH in a first CORESET having a first TCI state and in a second CORESET having a second TCI state different from the first TCI state.

11. The UE according to claim 8, wherein, The transceiver is further configured to: Receive two Channel State Information Reference Signals (CSI-RS); and The channel transmits two Channel State Information (CSI) reports corresponding to the two CSI-RS. The PDCCH from the PDCCH provides downlink control information (DCI) format, and The DCI format triggers the reception of the two CSI-RS.

12. The UE according to claim 11, wherein, The two CSI-RS have different TCI states.

13. The UE according to claim 11, in, The transceiver is further configured to transmit the channel in a repetitive manner; and The processor is further configured to determine the earliest repeat, which begins at a time greater than or equal to a first value after the end of the reception of the PDCCH, wherein the two CSI reports are included only in the earliest repeat.

14. The UE according to claim 11, wherein, The transceiver is further configured to: Receive two Channel State Information Reference Signals (CSI-RS) on the cell; and The channel transmits two Channel State Information (CSI) reports corresponding to the two CSI-RS. The PDCCH from the PDCCH provides downlink control information (DCI) format, and The DCI format triggers the reception of the two CSI-RS.

15. A base station, the base station comprising: A transceiver configured to transmit information about a first search space set and a first control resource set (CORESET) for a first cell, wherein the search space set has an index, is a common search space set (CSS) or a UE-specific search space set (USS), and is associated with a CORESET having an index and a Transmission Configuration Indicator (TCI) state; and A processor, operatively coupled to the transceiver, is configured to: determine a second search space set associated with time overlap reception of the Physical Downlink Control Channel (PDCCH) from the first search space set and the second core set from the first core set, for a second cell of the first cell. The transceiver is further configured to send PDCCH only in the following cases according to a CSS set or USS set from the second search space set: (a) a first CORESET having a first TCI state; (b) a second CORESET, if any, having a second TCI state different from the first TCI state; and (c) any other CORESET from the second CORESET having a TCI state identical to the first TCI state or the second TCI state. Wherein, if any, the first CORESET corresponds to the first CSS set with the lowest index on the first cell with the lowest index from the second cell; otherwise, the first CORESET corresponds to the first USS set with the lowest index on the first cell with the lowest index from the second cell, and Wherein, the CSS set and USS set associated with the CORESET having the first TCI state are excluded. If they exist, the second CORESET corresponds to the second CSS set with the lowest index on the second cell with the lowest index from the second cell; otherwise, the second CORESET corresponds to the second USS set with the lowest index on the second cell with the lowest index from the second cell.

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