User equipment in a communication system and method performed thereby

Abstract

A user equipment in a communication system and a method performed by the user equipment are disclosed. The method comprises determining whether a first subcarrier spacing, SCS, configuration associated with a primary cell and a second SCS configuration associated with a secondary cell are the same; determining a first total number of physical downlink control channel, PDCCH, candidates associated with the first SCS configuration and a second total number of PDCCH candidates associated with the second SCS configuration. In case the first SCS configuration and the second SCS configuration are the same, the total number of PDCCH candidates associated with the SCS configuration is determined by including the primary cell once in the first set of downlink cells associated with the SCS configuration from the primary cell.

Description

[0001] This application is a divisional application of the invention patent application filed on July 15, 2021, with application number 202180061056.6 and invention title "Scheduling from different cells in a cell". Technical Field

[0002] This disclosure generally relates to wireless communication systems, and more specifically, to a process for scheduling from different cells on a cell. Background Technology

[0003] To meet the increased demand for wireless data traffic since the deployment of 4G communication systems, efforts have been made to develop improved 5G or pre-5G communication systems. Therefore, 5G or pre-5G communication systems are also referred to as "super-4G networks" or "post-LTE systems." 5G communication systems are considered to be implemented in higher frequency (millimeter wave) 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 in 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 FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding modulation (ACM), as well as filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies.

[0004] The internet, as a human-centric connectivity network in which humans generate and consume information, is now evolving into the Internet of Things (IoT), in which distributed entities (such as things) exchange and process information without human intervention. The Internet of Everything (IoE), a network of everything combining IoT and big data processing technologies connected to cloud servers, has already emerged. Because implementing IoT requires 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 between interconnected things. Through the integration and combination of existing information technology (IT) with various industrial applications, IoT can be applied to a wide range of fields, including smart homes, smart buildings, smart cities, smart or connected cars, smart grids, healthcare, smart appliances, and advanced medical services.

[0005] Accordingly, various attempts have been made to apply 5G communication systems to IoT networks. For example, technologies such as sensor networks, machine-type communication (MTC), and machine-to-machine (M2M) communication can be implemented using beamforming, MIMO, and array antennas. Cloud radio access networks (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.

[0006] Fifth-generation (5G), or new radio (NR) mobile communications, is gaining increasing momentum recently amid global technological activity driven by a variety of candidate technologies from industry and academia. Candidate technologies contributing to 5G / NR mobile communications include massive MIMO (Massively Multi-band Antenna) technologies from traditional cellular bands to high 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 (RAT)); and new multiple access schemes to support massive connectivity, among others. Summary of the Invention

[0007] Technical issues

[0008] For more efficient communication systems, methods and apparatus are needed for scheduling from different cells within a single cell.

[0009] Solution to the problem

[0010] This disclosure relates to a process for scheduling from different cells in a cell.

[0011] In one embodiment, a method is provided. The method includes receiving first information for a first scheduling cell and a second scheduling cell for a scheduled cell, and second information for receiving a Physical Downlink Control Channel (PDCCH) from the first scheduling cell and the second scheduling cell. The PDCCH provides a downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by: Cell Radio Network Temporary Identifier (C-RNTI), Configuration Scheduling RNTI (CS-RNTI), or Modulation and Coding Scheme C-RNTI (MCS-C-RNTI). The DCI format is used to schedule Physical Uplink Shared Channel (PUSCH) transmission or Physical Downlink Shared Channel (PDSCH) reception on the scheduled cell. The method further includes: determining, based on the second information, whether to receive the PDCCH only from the first scheduling cell or only from the second scheduling cell within a time unit, and determining whether to receive the PDCCH only from the first scheduling cell or only from the second scheduling cell within that time unit.

[0012] In another embodiment, a user equipment (UE) is provided. The UE includes a transceiver configured to receive first information for a first and second scheduling cell of a scheduled cell, and second information for receiving a PDCCH from the first and second scheduling cells. The PDCCH provides a DCI format with a CRC scrambled by: C-RNTI, CS-RNTI, or MCS-C-RNTI. The DCI format schedules PUSCH transmission or PDSCH reception on the scheduled cell. The UE also includes a processor operatively coupled to the transceiver. The processor is configured to determine, based on the second information, whether the reception of the PDCCH within a time unit is solely from the first scheduling cell or solely from the second scheduling cell. The transceiver is further configured to receive the PDCCH solely from the first scheduling cell or solely from the second scheduling cell within a time unit.

[0013] In another embodiment, a base station is provided. The base station includes a transceiver configured to transmit first information for a first and a second scheduled cell of a scheduled cell, and second information for receiving a PDCCH from the first and second scheduled cells. The PDCCH provides a DCI format with a CRC scrambled by C-RNTI, CS-RNTI, or MCS-C-RNTI. The DCI format schedules PUSCH transmission or PDSCH reception on the scheduled cell. The base station also includes a processor operatively coupled to the transceiver, configured to determine, based on the second information, whether PDCCH transmission within a time unit originates only from the first scheduled cell or only from the second scheduled cell. The transceiver is further configured to transmit the PDCCH only from the first scheduled cell or only from the second scheduled cell within the time unit.

[0014] In one embodiment, a method performed by a user equipment (UE) in a communication system is provided, the method comprising: determining a first subcarrier spacing (SCS) configuration associated with a primary cell. and the second SCS configuration associated with the secondary cell Are they the same? Determine if they match the first SCS configuration. The first total number of associated physical downlink control channel (PDCCH) candidates and with the second SCS configuration The second total number of associated PDCCH candidates In the first SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated PDCCH candidates It was determined that, in the first SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells include the primary cell, configured with the first SCS. The first total number of associated PDCCH candidates and with the second SCS configuration The second total number of associated second PDCCH candidates It has been confirmed.

[0015] In one embodiment, a user equipment (UE) is provided in a communication system, the UE including: a transceiver; and a controller configured to: determine a first subcarrier spacing (SCS) configuration associated with a primary cell. and the second SCS configuration associated with the secondary cell Are they the same? Determine if they match the first SCS configuration. The first total number of associated physical downlink control channel (PDCCH) candidates and with the second SCS configuration The second total number of associated PDCCH candidates In the first SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated PDCCH candidates It was determined that, in the first SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells include the primary cell, configured with the first SCS. The first total number of associated PDCCH candidates and with the second SCS configuration The second total number of associated second PDCCH candidates It has been confirmed.

[0016] Other technical features will be readily apparent to those skilled in the art from the following figures, description and claims.

[0017] Advantages of the invention

[0018] According to embodiments of this disclosure, a method and apparatus for scheduling from different cells on a cell are provided. Attached Figure Description

[0019] To better understand this disclosure and its advantages, the following description, taken in conjunction with the accompanying drawings, is now referred to, wherein like reference numerals denote like parts:

[0020] Figure 1 An example wireless network according to an embodiment of the present disclosure is shown;

[0021] Figure 2 An example base station (BS) according to an embodiment of the present disclosure is shown;

[0022] Figure 3 A user equipment (UE) according to an embodiment of the present disclosure is shown;

[0023] Figure 4 An example wireless transmission and reception path according to an embodiment of this disclosure is shown;

[0024] Figure 5 An example wireless transmission and reception path according to an embodiment of this disclosure is shown;

[0025] Figure 6A block diagram of an example transmitter structure using orthogonal frequency division multiplexing (OFDM) according to an embodiment of the present disclosure is shown;

[0026] Figure 7 A block diagram of an example receiver structure using OFDM according to an embodiment of the present disclosure is shown;

[0027] Figure 8 An example encoding process for a downlink control information (DCI) format according to an embodiment of this disclosure is shown;

[0028] Figure 9 An example decoding process for DCI format used with a UE, according to an embodiment of this disclosure, is shown;

[0029] Figure 10 A method is shown for a UE to determine the total number of physical downlink control channel (PDCCH) candidates and the total number of non-overlapping control channel elements (CCE) according to embodiments of the present disclosure;

[0030] Figure 11 A method for scheduling a UE from a first cell and a second cell based on a time pattern according to an embodiment of the present disclosure is illustrated;

[0031] Figure 12 A method for determining a change from an active DL BWP to a dormant BWP on a secondary cell is illustrated according to embodiments of the present disclosure;

[0032] Figure 13 A method is shown for determining whether to monitor the PDCCH for scheduling on the primary cell based on an indication in the DCI format, according to an embodiment of the present disclosure;

[0033] Figure 14 A method is shown according to embodiments of the present disclosure for determining whether to monitor the PDCCH for scheduling on the primary cell based on the active DL BWP on the primary cell;

[0034] Figure 15 A method for generating a Type 1 Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) codebook according to embodiments of the present disclosure is shown;

[0035] Figure 16 A method for determining a search space according to embodiments of the present disclosure is illustrated;

[0036] Figure 17 An example diagram of a search space set configuration according to an embodiment of the present disclosure is shown;

[0037] Figure 18A method for determining a UE's capability to receive a PDCCH according to embodiments of the present disclosure is illustrated;

[0038] Figure 19 A method for determining whether to discard or perform rate matching according to an embodiment of the present disclosure is shown;

[0039] Figure 20 A user equipment (UE) according to an embodiment of the present disclosure is illustrated; and

[0040] Figure 21 A base station according to an embodiment of the present disclosure is shown. Detailed Implementation

[0041] Before proceeding with the detailed 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 cover 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 including, being included within, interconnected with, containing, being contained within, connected to or connected with, coupled to or coupled with, able to communicate with, cooperate with, intertwine, juxtapose, be close to, be bound to or bound with, have, possess the properties of, be related to, 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 may be centralized or distributed, 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 may be used, and it may be necessary to use only one item from the list. 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 and B and C.

[0042] 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, compact disc (CD), digital video disc (DVD), or any other type of storage. "Non-transitory" computer-readable media does not include wired, wireless, optical, or other communication links that transmit transient electrical or other signals. Non-transitory computer-readable media includes media that can permanently store data and media that can store data and be rewritten later (such as rewritable optical discs or erasable storage devices).

[0043] This patent document also provides definitions for other specific words and phrases throughout. Those skilled in the art will understand that, in many (if not most) cases, such definitions apply to the prior and future use of the words and phrases defined in this way.

[0044] The following discussion Figures 1 to 21 The various embodiments used to describe the principles of this disclosure in this patent document are merely exemplary and should not be construed in any way as limiting the scope of this disclosure. Those skilled in the art will understand that the principles of this disclosure can be implemented in any suitably arranged system or device.

[0045] The following documents are incorporated herein by reference as if fully set forth herein: 3GPP TS 38.211 v16.2.0, “NR; Physical Channels and Modulation”; 3GPP TS 38.212 v16.2.0, “NR; Multiplexing and Channel Coding”; 3GPP TS 38.213 v16.2.0, “NR; Physical Layer Procedures for Control”; 3GPP TS 38.214 v16.2.0, “NR; Physical Layer Procedures for Data”; 3GPP TS 38.321 v16.1.0, “NR; Medium Access Control (MAC) Protocol Specification”; and 3GPP TS 38.331 v16.1.0, “NR; Radio Resource Control (RRC) Protocol Specification”.

[0046] 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 pre-5G / NR communication systems. Therefore, 5G or pre-5G communication systems are also referred to as "super-4G networks" or "post-long term evolution (LTE) systems."

[0047] 5G communication systems are considered to be implemented in higher frequency (millimeter wave) bands (e.g., 28 GHz or 60 GHz bands) to achieve higher data rates, or in lower frequency bands (e.g., 6 GHz) to achieve robust coverage and mobility support. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO (multiple-input multiple-output), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0048] In addition, in 5G communication systems, development is underway to improve system networks based on advanced small cells, radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multi-points (CoMP), and receiver interference cancellation.

[0049] 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 used in conjunction with any frequency band. For example, aspects of this disclosure can also be applied to the deployment of 5G communication systems, 6G, and even newer versions that can use terahertz (THz) frequency bands.

[0050] Depending on the network type, the term "base station" (BS) can refer to any component (or set of components) configured to provide wireless access to a network, such as a transmit point (TP), transmit-receive point (TRP), enhanced base station (eNodeB or eNB), gNB, macro cell, femtocell, WiFi access point (AP), satellite, or other wireless-enabled equipment. A base station can provide wireless access according to one or more wireless communication protocols, such as 5G 3GPP New Radio Interface / Access (NR), LTE, LTE Advanced (LTE-A), High Speed ​​Packet Access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. The terms "BS," "gNB," and "TRP" are used interchangeably in this disclosure to refer to network infrastructure components that provide wireless access to remote terminals. Furthermore, depending on the network type, the term "user equipment" (UE) can refer to any component, such as a mobile station, subscriber station, remote terminal, wireless terminal, receiving point, vehicle, or user equipment. For example, a UE can be a mobile phone, smartphone, surveillance equipment, alarm equipment, fleet management equipment, asset tracking equipment, automobile, desktop computer, entertainment equipment, infotainment equipment, vending machine, electricity meter, water meter, gas meter, security equipment, sensor equipment, electrical appliances, etc.

[0051] The following Figures 1-3 Various embodiments of communication technologies implemented in wireless communication systems using orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) are described. Figures 1-3 The description does not imply any physical or architectural limitation on how different embodiments can be implemented. Different embodiments of this disclosure can be implemented in any suitably arranged communication system.

[0052] Figure 1An 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.

[0053] like Figure 1 As shown, the wireless network 100 includes base station BS 101 (e.g., 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 network).

[0054] 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 cellular 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 and UE 116. In some embodiments, one or more of BS 101-103 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 111-116.

[0055] The dashed lines indicate the approximate extent of coverage areas 120 and 125, and are shown roughly as circular for illustrative and explanatory purposes only. It should be clearly understood that, depending on the configuration of the BS and variations in the radio 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.

[0056] As described in more detail below, one or more of UEs 111-116 include circuitry, programming, or a combination thereof for scheduling on a cell. In some embodiments, one or more of BSs 101-103 include circuitry, programming, or a combination thereof for scheduling on a cell for different cells.

[0057] although Figure 1An example of a wireless network is shown, but more can be found on... Figure 1 Various modifications can be made. For example, the wireless network can include any number of BSs and any number of UEs in any suitable arrangement. Furthermore, 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. Additionally, 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.

[0058] 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 have a wide variety of configurations, and Figure 2 This disclosure is not intended to limit the scope of any particular implementation of BS.

[0059] 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 (IF) 235.

[0060] RF transceivers 210a-210n receive incoming RF signals from antennas 205a-205n, such as signals transmitted by a UE in wireless network 100. RF transceivers 210a-210n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 220, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 220 transmits the processed baseband signals to controller / processor 225 for further processing.

[0061] The TX processing circuit 215 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 225. The TX processing circuit 215 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 210a-210n receive the processed baseband or IF signal from the TX processing circuit 215 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 205a-205n.

[0062] 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 forward channel signals and the transmission of reverse channel signals via RF transceivers 210a-210n, RX processing circuitry 220, and TX processing circuitry 215, based on well-known principles. The controller / processor 225 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 225 may support scheduling for different cells on a cell basis, and signaling for variable scheduling delay requirements. The controller / processor 225 may support any of a variety of other functions in the BS 102. In some embodiments, the controller / processor 225 includes at least one microprocessor or microcontroller.

[0063] The controller / processor 225 is also capable of executing processes and other procedures residing in the memory 230, such as the operating system. The controller / processor 225 can move data into or out of the memory 230 as needed for the execution process. For example, the controller / processor 225 can move data into or out of the memory 230 according to the process being executed.

[0064] The controller / processor 225 is also coupled to the backhaul or network interface 235. The backhaul or network interface 235 allows the BS 102 to communicate with other devices or systems via a backhaul connection or network. Interface 235 can support communication via any suitable wired or wireless connection(s). 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 allow 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 allow the BS 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The network interface 235 includes any suitable architecture supporting communication via wired or wireless connections, such as Ethernet or RF transceivers.

[0065] Memory 230 is coupled to controller / processor 225. A portion of memory 230 may include RAM, and another portion of memory 230 may include flash memory or other ROM.

[0066] although Figure 2 An example of BS 102 is shown, but it is possible to compare it with other versions. Figure 2 Various changes can be made. For example, BS 102 may include... Figure 2 Any number of each component shown. As a particular 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 particular example, although shown as a single instance including TX processing circuitry 215 and a single instance including RX processing circuitry 220, BS 102 may include multiple instances of each processing circuitry (such as one instance per RF transceiver). Furthermore, Figure 2 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed.

[0067] 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 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 of any particular implementation of the UE.

[0068] like Figure 3 As 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.

[0069] RF transceiver 310 receives incoming RF signals transmitted from the BS of wireless network 100 via antenna 305. RF transceiver 310 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 325, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 325 transmits the processed baseband signal to speaker 330 (e.g., for voice data) or processor 340 for further processing (e.g., for web browsing data).

[0070] The TX processing circuit 315 receives analog or digital voice data from the microphone 320, or other outgoing baseband data (such as network 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 or IF signal. The RF transceiver 310 receives the processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal into an RF signal transmitted via the antenna 305.

[0071] Processor 340 may include one or more processors or other processing devices and executes OS 361 stored in memory 360 to control the overall operation of UE 116. For example, based on well-known principles, processor 340 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceiver 310, RX processing circuitry 325, and TX processing circuitry 315. In some embodiments, processor 340 includes at least one microprocessor or microcontroller.

[0072] Processor 340 is also capable of executing other processes and procedures residing in memory 360, such as procedures for beam management. Processor 340 can move data into or out of memory 360 as needed for the execution of the process. In some embodiments, processor 340 is configured to execute 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.

[0073] Processor 340 is also coupled to input device 350. An operator of UE 116 can use input device 350 to input data into UE 116. Input device 350 can be a keyboard, touchscreen, mouse, trackball, voice input, or other device capable of acting as a user interface to allow the user to interact with UE 116. For example, input device 350 may include voice recognition processing, thereby allowing the user to input voice commands. In another example, input device 350 may include a touch panel, (digital) pen sensor, button, or ultrasonic input device. Touch panel can recognize touch input in at least one of the following methods: capacitive, pressure-sensitive, infrared, or ultrasonic.

[0074] The processor 340 is also coupled to a display 355. The display 355 may be a liquid crystal display, a light-emitting diode display, or other display capable of displaying text and / or at least limited graphics (such as limited graphics from a website).

[0075] The memory 360 is coupled to the processor 340. A portion of the memory 360 may include random access memory (RAM), and another portion of the memory 360 may include flash memory or other read-only memory (ROM).

[0076] 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). Furthermore, although... Figure 3 The UE 116 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.

[0077] Figure 4 and Figure 5 An example wireless transmission path and a wireless reception path according to this disclosure are shown. In the following description, Figure 4 The sending path 400 can be described as being implemented in a BS (such as BS 102), while Figure 5The receive path 500 can be described as being implemented in a UE (such as UE 116). However, it is understood that the receive path 500 can be implemented in a BS, and the transmit path 400 can be implemented in a UE. In some embodiments, the receive path 500 is configured to support cell scheduling, as described in embodiments of this disclosure.

[0078] like Figure 4 The transmission path 400 shown includes a channel coding and modulation block 405, a serial-to-parallel (SP) conversion block 410, an inverse fast Fourier transform (IFFT) block of size N 415, a parallel-to-serial (PS) conversion block 420, a cyclic prefix addition block 425, and an up-converter (UC) 430. Figure 5 The receiver path 500 shown includes a down-converter (DC) 555, a cyclic prefix removal block 560, a serial-to-parallel (SP) conversion block 565, a fast Fourier transform (FFT) block of size N, a parallel-to-serial (PS) conversion block 575, and a channel decoding and demodulation block 580.

[0079] 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 or polarization coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a frequency-domain modulated symbol sequence. Serial-to-parallel conversion block 410 converts (e.g., 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. IFFT block 415 of size N performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial conversion block 420 converts (e.g., multiplexes) the parallel time-domain output symbols from IFFT block 415 of size N to generate a serial time-domain signal. Cyclic prefix addition block 425 inserts a cyclic prefix into the time-domain signal. Upconverter 430 modulates (e.g., upconverts) the output of cyclic prefix block 425 to the RF frequency for transmission via a wireless channel. The signal may also be filtered at baseband before being converted to the RF frequency.

[0080] The RF signal transmitted from BS 102 reaches UE 116 after being passed through the wireless channel, and UE 116 performs the opposite operation to that at BS 102.

[0081] 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 converter block 565 converts the time-domain baseband signal into a parallel time-domain signal. FFT block 570 of size N performs the FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial converter block 575 converts the parallel frequency-domain signals into a modulated data symbol sequence. Channel decoding and demodulation block 580 demodulates and decodes the modulated symbols to recover the original input data stream.

[0082] Each of BS 101-103 can be implemented as follows Figure 4 The transmission path 400 shown is similar to transmission to UEs 111-116 in the downlink, and can be implemented as follows: Figure 5 The received path 500 shown is similar to that received from UE 111-116 in the uplink. Similarly, each of UE 111-116 may implement a transmitted path 400 for transmitting to BS 101-103 in the uplink, and may implement a received path 500 for receiving from BS 101-103 in the downlink.

[0083] Figure 4 and Figure 5 Each component can be implemented using hardware or a combination of hardware and software / firmware. As a specific example, Figure 4 and Figure 5 At least some components can be implemented in software, while others can be implemented in configurable hardware or a combination 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 method.

[0084] Furthermore, although described as using FFT and IFFT, this is merely exemplary 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, can be used. It will be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for 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.).

[0085] although Figure 4 and Figure 5 Examples of wireless transmit and receive paths are shown, but more can be found on other devices. 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 transmit 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.

[0086] The unit used for downlink (DL) or uplink (UL) signaling on a cell is called a time slot, and it can include one or more symbols. The unit of bandwidth (BW) is called a resource block (RB). An RB comprises multiple sub-carriers (SCs). For example, a time slot can have a duration of 1 millisecond, and an RB can have a bandwidth of 180 kHz and include 12 SCs, with an inter-SC spacing of 15 kHz. The sub-carrier spacing (SCS) can be configured by the SCS. Determined as kHz. The unit of a subcarrier on a symbol is called a resource element (RE). The unit of an RB on a symbol is called a physical RB (PRB). In some embodiments, a time slot can be a full DL time slot, a full UL time slot, or a hybrid time slot similar to a special subframe in a time division duplex (TDD) system.

[0087] DL signals include data signals that transmit information content, control signals that transmit DL control information (DCI), and reference signals (RS) (also known as pilot signals). The BS (such as BS 102) transmits data information or DCI through the corresponding physical DL shared channel (PDSCH) or physical DL control channel (PDCCH). PDSCH or PDCCH can be transmitted on a variable number of time slot symbols, including one time slot symbol. The BS transmits one or more types of RS, including channel state information RS (CSI-RS) and demodulation RS (DM-RS). CSI-RS is intended for the UE (such as UE 116) to perform measurements and provide channel state information (CSI) to the BS. For channel measurements or for time tracking, non-zero power CSI-RS (NZP CSI-RS) resources can be used. For interference measurement reports (IMR), CSI interference measurement (CSI-IM) resources can be used. 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-layer signaling (such as Radio Resource Control (RRC) signaling from the gNB). DM-RS is typically transmitted only within the BW of the corresponding PDCCH or PDSCH, and the UE can use DM-RS to demodulate data or control information.

[0088] UL signals also include data signals for transmitting information content, control signals for transmitting UL control information (UCI), DM-RS associated with data or UCI demodulation, sounding RS (SRS) enabling the gNB 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). The PUSCH or PUCCH can be transmitted on a variable number of time slot symbols, 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, transmit both, i.e., at least a PUSCH with data information and a PUCCH with UCI when transmitted on different cells.

[0089] UCI includes: a hybrid automatic repeat request acknowledgment (HARQ-ACK) message indicating whether a transport block (TB) or code block group (CBG) in the PDSCH is correctly or incorrectly detected; a scheduling request (SR) indicating whether the UE has data to send in its buffer; and a CSI report enabling the gNB to select appropriate parameters for PDSCH or PDCCH transmission to the UE. The CSI report may include: a channel quality indicator (CQI) that informs the gNB of the maximum modulation and coding scheme (MCS) that enables the UE to detect a data TB at a predetermined block error rate (BLER) (such as 10% BLER); a precoding matrix indicator (PMI) that informs the gNB how to combine signals from multiple transmitter antennas according to the multiple-input multiple-output (MIMO) transmission principle; a CSI-RS resource indicator (CRI) for obtaining the CSI report; and a rank indicator (RI) that indicates the transmission rank of the PDSCH. In some embodiments, the UL RS includes DM-RS and SRS. DM-RS is typically transmitted within the BW of the corresponding PUSCH or PUCCH. The gNB can use DM-RS to demodulate information in the corresponding PUSCH or PUCCH. SRS is transmitted by the UE to provide the UL CSI to the gNB, and for TDD systems, PMI for DL ​​transmission is also provided. In addition, as part of the random access procedure or for other purposes, the UE may transmit the physical random access channel (PRACH).

[0090] DL and UL transmissions can be based on orthogonal frequency division multiplexing (OFDM) waveforms, including variants that use DFT precoding, known as DFT extended OFDM.

[0091] Figure 6 A block diagram 600 illustrating an example transmitter structure using orthogonal frequency division multiplexing (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.

[0092] The transmitter structure shown in block diagram 600 and the receiver structure shown in block diagram 600 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.

[0093] 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 resources by rate matcher 630, and modulated by modulator 640. Subsequently, SC mapping unit 660 maps the modulated coded symbols and DMRS or CSI-RS 650 to SC using input from BW selector unit 665, filter 670 performs inverse fast Fourier transform (IFFT), CP insertion unit 680 adds a cyclic prefix (CP), and filter 690 filters the resulting signal, which is then transmitted by radio frequency (RF) unit as transmit bit 695.

[0094] As shown in block diagram 700, filter 720 filters the received signal 710, CP removal unit 730 removes CP, filter 740 applies Fast Fourier Transform (FFT), SC demapping unit 750 demaps the SC selected by BW selector unit 755, channel estimator and demodulator unit 760 demodulates the received symbols, rate dematcher 770 restores rate matching, and decoder 780 decodes the obtained bits to provide information bits 790.

[0095] In some embodiments, the UE monitors multiple candidate locations for a corresponding potential PDCCH reception to decode multiple DCI formats in the time slot. The DCI format includes cyclic redundancy check (CRC) bits to allow the UE to verify the correct detection of the DCI format. One type of DCI format is identified by a radio network temporary identifier (RNTI) that scrambles the CRC bits of the DCI format.

[0096] For the DCI format that schedules PDSCH or PUSCH to a single UE, the RNTI can be a cell RNTI (C-RNTI), a configured scheduling RNTI (CS-RNTI), or an MCS-C-RNTI, and is used as the UE identifier. In the example below, the C-RNTI will be referenced when needed. The UE typically receives / monitors the PDCCH to detect the DCI format with a CRC scrambled by the C-RNTI, based on the UE-specific search space (USS).

[0097] For the DCI format of PDSCH that schedules the transmission of system information (SI), the RNTI can be SI-RNTI. For the DCI format of PDSCH that schedules the provision of random access response (RAR), the RNTI can be RA-RNTI. For the DCI format of PDSCH that schedules the provision of paging information, the RNTI can be P-RNTI. There are also many other RNTIs associated with DCI formats that provide various control information and are monitored according to the common search space (CSS).

[0098] Figure 8 An example encoding process 800 for a downlink control information (DCI) format according to an embodiment of the present disclosure is shown. Figure 9 An example decoding process 900 for use with a UE in DCI format according to an embodiment of this disclosure is shown. Figure 8 The encoding process 800 and Figure 9 The decoding process 900 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0099] The BS encodes and transmits each DCI format separately in the corresponding PDCCH. When applicable, the RNTI of the UE for which the DCI format is targeted masks the CRC of the DCI format codeword so that the UE can recognize the DCI format. For example, the CRC can include 16 bits or 24 bits, and the RNTI can also include 16 bits or 24 bits. Otherwise, when the RNTI is not included in the DCI format, the DCI format type indicator field can be included in the DCI format.

[0100] like Figure 8As shown, the CRC calculation unit 820 is used to determine the CRC of the (uncoded) DCI format bits 810, and the CRC is masked using an XOR operation unit 830 between the CRC bits and the RNTI bits 840. The XOR operation is defined as XOR(0,0) = 0, XOR(0,1) = 1, XOR(1,0) = 1, XOR(1,1) = 0. The masked CRC bits are appended to the DCI format information bits using a CRC appending unit 850. The encoder 860 performs channel coding (such as tail-biting convolutional coding or polar coding), and then the rate matcher 870 rate-matches the allocated resources. The interleaving and modulation unit 880 applies interleaving and modulation (such as QPSK), and the output control signal 890 is transmitted.

[0101] like Figure 9 As shown, demodulator and deinterleaver 920 demodulate and deinterleave the received control signal 910. Rate matcher 930 restores the rate match applied at the BS transmitter, and decoder 940 decodes the resulting bits. After decoding, CRC extractor 950 extracts CRC bits and provides DCI format information bits 960. The DCI format information bits are demasked 970 by an XOR operation with RNTI 980 (where applicable), and unit 990 performs a CRC check. When the CRC check is successful (checksum is zero), the DCI format information bits are considered valid. When the CRC check is unsuccessful, the DCI format information bits are considered invalid.

[0102] In some embodiments, PDCCH transmission can be performed within a PRB set. The BS can configure one or more PRB sets for PDCCH reception for the UE, called a control resource set (CORESET). PDCCH reception can be performed within the control channel element (CCE) included in the CORESET.

[0103] The UE can monitor the PDCCH based on either a first PDCCH monitoring type or a second PDCCH monitoring type. For the first PDCCH monitoring type, which corresponds to the UE's ability to monitor the PDCCH by time slot, the maximum number of PDCCH candidates is defined by time slot. and the maximum number of non-overlapping CCEs used to receive PDCCH candidates Non-overlapping CCEs are CCEs with different indices, or in different symbols of a CORESET, or in different CORESETs.

[0104] For the second PDCCH monitoring type corresponding to the UE's ability to perform PDCCH monitoring by span, by combination This defines the maximum number of PDCCH candidates and the maximum number of non-overlapping CCEs used to receive PDCCH candidates. UEs (such as UE 116) can be configured according to SCS. and According to the combination = (2, 2), (4, 3), and (7, 3) to indicate the ability to monitor PDCCH. The span is the number of consecutive symbols in a time slot in which the UE is configured to monitor PDCCH (receive candidate / potential PDCCH and decode it for the corresponding DCI format). Each PDCCH monitoring time is within one span. If the UE is configured to monitor PDCCH according to the combination... If the UE monitors the PDCCH on the cell, then the UE supports PDCCH monitoring timing in any symbol of the time slot, where there is a PDCCH monitoring opportunity between the first symbols of two consecutive spans (including spans across time slots). The minimum time interval for each symbol. A span begins with the first symbol of the PDCCH monitoring period and ends with the last symbol of the PDCCH monitoring period, where the number of symbols in the span depends on... If the UE indicates that multiple PDCCH monitoring parameters are used for cell-based monitoring... The ability to combine and configure the search space set of the UE to monitor the PDCCH results in multiple combinations One or more of them, the separation between every two consecutive PDCCH monitoring spans is equal to or greater than The value is then determined by the UE based on one or more combinations. and and The maximum number of associated combinations To monitor the PDCCH on the cell. In some embodiments, if the UE (such as UE 116) can support... The first set of service areas and The second set of serving cells, for the purpose of reporting pdcch-BlindDetectionCA, the UE determines the number of serving cells as follows: ,in This is the value reported by the UE. In this embodiment, (i) The first set of serving cells is associated with a single TRP for each cell, and for all CORESETs on all DL BWPs from each serving cell in the first set of serving cells, the UE is either not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex has a single value, and (ii) The second set of serving cells is associated with two TRPs for each cell, and for the first CORESET on any DL BWP from each serving cell in the second set of serving cells, the UE is provided with a CORESETPoolIndex value of 0, while for the second CORESET, the UE is provided with a CORESETPoolIndex value of 1.

[0105] In some embodiments, if the UE (such as UE 116) (i) is configured with (ii) downlink cells, and those configured using SCS PDCCH candidates monitored in the active DL BWP of (multiple) scheduling cells are associated, where And (iii) if the DL BWP of the active cell is the active DL BWP of the active cell, and the DL BWP of the deactivated cell is a DL BWP with an index provided by the firstActiveDownlinkBWP-Id for the deactivated cell, then the UE is not required to [receive information from...]. Multiple downlink cells are scheduled for multiple activity cells. Each time slot on the DL BWP monitors more than [number missing] downlink cells. PDCCH candidates or more There are non-overlapping CCEs. In this example, The value is 4, or it is the capability reported by the UE. Additionally, in this example, It is a value provided to the UE by the higher layer, or .

[0106] For each scheduled cell, the UE is not required to be from... The scheduling cell of each downlink cell has an SCS configuration The activity DL BWP monitors more than [number] times per time slot. PDCCH candidates or more Non-overlapping CCEs. Similarly, for each scheduled cell, the UE is not required to be from... The scheduling cell of each downlink cell has an SCS configuration On the active DL BWP, for CORESETs with the same CORESETPoolIndex value, each time slot monitors more than PDCCH candidates or more A non-overlapping CCE. If no CORESETPoolIndex is provided for the cell, or if a single CORESETPoolIndex is provided for the cell, then... .

[0107] In some embodiments, the UE determines the CCE used for decoding PDCCH candidates based on a search space. For some RNTIs (such as C-RNTIs), a corresponding UE-specific search space set is defined for the PDCCH candidate set of the corresponding DCI format. For other RNTIs (such as SI-RNTIs), a corresponding common search space set (CSS set) is defined for the PDCCH candidate set of the corresponding DCI format. The search space set is associated with the CORESET of the PDCCH candidates in which the UE monitors the search space set. The UE intends to monitor PDCCH candidates of up to four sizes of DCI formats, including up to three sizes of DCI formats with CRC scrambled by the C-RNTI or MCS-C-RNTI of each serving cell. The UE can count the number of DCI format sizes per serving cell based on the number of PDCCH candidates configured in the corresponding search space set for the corresponding active DL BWP.

[0108] Regarding CORESET Related search space set time slot The search space set and PDCCH candidates Corresponding aggregation level The CCE index is given by the following equation (1), which sets the search space for the carrier indicator field value. The corresponding active DL BWP for the serving cell. As stated in equation (1), for any CSS, Similarly, for USS, , ,right have ,right have ,right have ,and .

[0109] In addition, as stated in equation (1), ,and It's CORESET CCE (numbered from 0 to The number of ). Similarly, if the UE is configured with a carrier indicator field for monitoring the serving cell on its PDCCH, then It is the carrier indicator field value; otherwise, for any CSS, including The expression described in equation (1) Explanation ,in, Is the UE configured for use with The corresponding search space set of service areas Aggregation level The number of PDCCH candidates being monitored. For USS, It is for the set of search spaces Aggregation level In all configurations On value Maximum value. Additionally, used for The RNTI value is C-RNTI.

[0110]

[0111] In some embodiments, the UE (such as UE 116) monitors the PDCCH according to the CSS so that it schedules the PDSCH providing system information, random access response, or paging only on a cell referred to as the primary cell. The UE transmits the PUCCH only on the primary cell. In some embodiments, the UE is configured as a primary secondary cell (PSCell) for PUCCH transmission. When the UE is configured as a PSCell, the UE transmits the PUCCH on the primary cell of the primary / major cell group and on the PSCell of the secondary cell group. For brevity, the embodiments described in this disclosure consider the primary cell, but the embodiments can be directly extended to the PSCell.

[0112] In response to PDSCH reception or semi-persistent scheduling (SPS) PDSCH release or detection of a DCI format indicating sleep / non-sleep behavior of the SCell (monitoring / not monitoring the PDCCH used for scheduling on the SCell), the UE reports HARQ-ACK information generated according to either a Type 1 HARQ-ACK codebook or a Type 2 HARQ-ACK codebook. For simplicity, only PDSCH reception is mentioned in the following examples.

[0113] When the first PDSCH reception on the cell can be scheduled by the first DCI format provided by the first PDCCH (the first PDCCH is received in the first CORESET from the first CORESET set, for which the UE is not provided with the higher-layer parameter CORESETPoolIndex, or the provided CORESETPoolIndex value is 0), and / or the second PDSCH reception on the cell can be scheduled by the second DCI format provided by the second PDCCH (the second PDCCH is received in the second CORESET from the second CORESET set, for which the UE is provided with the value of CORESETPoolIndex value is 1), the UE generates HARQ-ACK information for the first PDSCH reception according to the first HARQ-ACK codebook, and generates HARQ-ACK information for the second PDSCH reception according to the second HARQ-ACK codebook. The UE can be configured by higher layers to jointly encode and multiplex the first HARQ-ACK codebook and the second HARQ-ACK codebook in the same PUCCH, or to encode and multiplex the first HARQ-ACK codebook and the second HARQ-ACK codebook separately in the corresponding first PUCCH and second PUCCH.

[0114] In some embodiments, the UE may also receive a first PDSCH providing a TB using a first TCI state and a second PDSCH providing a TB using a second TCI state. Here, the first PDSCH reception and the second PDSCH reception are scheduled by a single DCI format, and the TCI state field in the DCI format indicates the first TCI state and the second TCI state. The UE can generate a single HARQ-ACK message for the TB provided by the first PDSCH reception and the second PDSCH reception.

[0115] For example, for a Type-1 HARQ-ACK codebook being generated, if the UE (i) is not provided with a CORESETPoolIndex for the first CORESET on the active DL BWP of the serving cell, or the provided CORESETPoolIndex value is 0, (ii) is provided with a CORESETPoolIndex value of 1 for the second CORESET on the active DL BWP of the serving cell, and (iii) is provided with ACKNACKFeedbackMode = JointFeedback. In this example, if the serving cell includes the first CORESET, then the serving cell is placed... The first set of service communities Similarly, if the serving cell includes a second core set, then the serving cell is placed in... The second set of service communities In addition, serving cells are placed in a set according to the ascending order of the serving cell index. That is, the UE is separated into a set of serving cells. and set Generate a type 1 HARQ-ACK codebook, and will be used for the set The generated HARQ-ACK codebook and the subsequent set are The generated HARQ-ACK codebooks are concatenated to obtain the total. One HARQ-ACK information bit.

[0116] In some embodiments, a UE configured to operate in DRX mode is configured to monitor the PDCCH on the primary cell outside of the active time to detect the DCI format, referred to as DCI format 2_6, and the position of the wake-up indication bit in DCI format 2_6. When reporting to higher layers, a '0' value of the wake-up indication bit indicates that the drx-onDurationTimer for the next long DRX cycle should not be started, and a '1' value of the wake-up indication bit indicates that the drx-onDurationTimer for the next long DRX cycle should be started. When the UE is configured with a search space set to monitor the PDCCH to detect DCI format 2_6, and the UE fails to detect DCI format 2_6, the UE behavior of whether to start the drx-onDurationTimer for the next DRX cycle on the primary cell can be configured by higher layers (to start or not start the drx-onDurationTimer). The drx-onDurationTimer is the duration at the beginning of the DRX cycle.

[0117] In some embodiments, the UE is configured with a bitmap for the corresponding configuration SCell group in DCI format 2_6. For each active cell in the corresponding configuration SCell group, a "0" value in the bitmap indicates that the active DL BWP is the UE's dormant BWP. If the currently active DL BWP is a dormant DL BWP, then for each active SCell in the corresponding configuration SCell group, a "1" value in the bitmap indicates the UE's active (non-dormant) DL BWP; or, if the currently active DL BWP is not a dormant DL BWP, then for each active SCell in the corresponding configuration SCell group, a "1" value in the bitmap indicates the UE's current active DL BWP. The UE does not monitor the PDCCH in the dormant BWP of the SCell. When the UE detects DCI format 2_6, the UE's physical layer reports the value of the UE's wake-up indication bit to the higher layers in the next long DRX cycle; otherwise, it does not report it. The UE can also be instructed to change its active DL BWP to a dormant or non-dormant BWP by scheduling the DCI format received by the PDSCH on the primary cell, and for the sake of brevity, the corresponding description is omitted in this disclosure. The UE's active DL BWP on the primary cell is not instructed to change to a dormant BWP.

[0118] At least for initial deployment, UEs using New Radio (NR) radio access technology (NR UE) and legacy UEs using Long Term Evolution (LTE) radio access technology (LTE UE) coexist in the same network. To achieve this coexistence in the same spectrum, dynamic spectrum sharing (DSS) is used, where NR UEs and LTE UEs share the same channels, and the network can dynamically allocate resources between LTE UEs and NR UEs. During certain time instances (NR time slots or LTE subframes), the network can allocate most of the DL resources to LTE UEs, while the UL spectrum is typically not fully utilized and can be used for transmissions from either NR UE or LTE UE. It is also possible that some DL spectrum can be used for PDSCH reception of NR UEs. To enable NR UEs capable of carrier aggregation (CA) operation, PDCCH reception scheduled for PDSCH reception on the first cell where LTE UEs and NR UEs coexist can be offloaded to a second cell, which typically also has a larger bandwidth and where only NR UEs are present. Because the first cell is typically a macro cell providing synchronization signals and broadcast system information, it is the primary cell, and the second cell can be represented as a secondary cell. However, DSS operations can also be applied between secondary cells.

[0119] Generally, using DSS, an NR UE can be scheduled on a scheduled cell from a first scheduling cell (such as the primary cell) or from a second scheduling cell (such as a SCell). Note that unless otherwise explicitly stated, the term UE as used in this disclosure refers to an NR UE.

[0120] Therefore, embodiments of this disclosure take into account the need to define a scheduling procedure for the UE, which may be a PDSCH reception or PUSCH transmission scheduled on the scheduled cell based on PDCCH reception from a first scheduling cell or a second scheduling cell.

[0121] Embodiments of this disclosure also consider the need to define a wake-up procedure for the UE on the primary cell when PDSCH reception or PUSCH transmission can be scheduled for the UE on the primary cell based on PDCCH reception from the primary cell or from the secondary cell.

[0122] Embodiments of this disclosure also consider the need to define a UE procedure for changing an active DL BWP on a secondary cell to a dormant BWP when a UE can be scheduled from a secondary cell on a primary cell.

[0123] In addition, embodiments of this disclosure take into account the need to define a HARQ-ACK reporting procedure for the UE, which can be based on PDCCH reception on the first or second scheduling cell and PDSCH reception scheduled on the scheduled cell.

[0124] Accordingly, embodiments of this disclosure relate to defining a scheduling procedure for a UE, which may be a PDSCH reception or PUSCH transmission scheduled on a scheduled cell based on PDCCH reception from a first scheduling cell or a second scheduling cell. This disclosure also relates to defining a wake-up procedure for a UE on a primary cell when the UE can schedule PDSCH reception or PUSCH transmission on a primary cell based on PDCCH reception from a primary cell or a secondary cell. Additionally, this disclosure relates to defining a HARQ-ACK reporting procedure for a UE, which may be a PDSCH reception scheduled on a first cell based on PDCCH reception on a first cell or a second cell.

[0125] Embodiments of this disclosure describe the segmentation of UE PDCCH monitoring capabilities for scheduling on a scheduled cell from a first scheduling cell or a second scheduling cell. The following examples and embodiments describe the segmentation of UE PDCCH monitoring capabilities for scheduling on a scheduled cell from a first scheduling cell or a second scheduling cell.

[0126] Embodiments of this disclosure consider segmenting the UE's PDCCH monitoring capability when PDSCH reception or PUSCH transmission from a UE on a cell can be scheduled from a first scheduling cell or a second scheduling cell. The scheduled cell may be the same as or different from the first scheduling cell or the second scheduling cell, and the first scheduling cell and the second scheduling cell are different. The cell is the scheduled cell, and the first cell and the second cell are the scheduling cells. For brevity, when referring to a UE scheduled on a cell, the scheduling includes scheduling PDSCH reception by the UE or PUSCH transmission from the UE using a DCI format (utilizing parameters configured by higher layers) with a CRC scrambled by C-RNTI, CS-RNTI, or MCS-C-RNTI. Alternatively, it may activate or deactivate semi-persistent scheduling of PDSCH reception by the UE or PUSCH transmission from the UE.

[0127] When a UE (such as UE 116) is scheduled on a cell from either the first or second scheduling cell without any time constraints (the UE is configured with a search space set for scheduling on both the first and second scheduling cells), the cell is the scheduled cell for both the first and second scheduling cells. This is if the first and second scheduling cells use the same SCS configuration for PDCCH reception in the corresponding activity DL BWP for the UE. Furthermore, for the CORESET associated with the search space set configured to the UE for monitoring the PDCCH used for scheduling on the cell, the scheduled cells are counted or not counted based on the following example.

[0128] For example, if the UE is not provided with a CORESETPoolIndex value, or is provided with a CORESETPoolIndex value of 0, for at least one CORESET on both the first and second scheduling cells, then in The number of cells is counted twice for the scheduled cells. For example, if the UE is provided with a CORESETPoolIndex value of 1 for at least one CORESET on both the first and second scheduled cells, then in The number of cells is counted twice for the scheduled cells. For example, if for all CORESETs in only one of the first or second scheduled cells, the UE is not provided with a CORESETPoolIndex value, or is only provided with a CORESETPoolIndex value of 0, then in The number of cells is counted once for each scheduled cell. For example, if for all CORESETs in only one of the first or second scheduled cells, the UE is only provided with a CORESETPoolIndex value of 1, then in... The number of cells is counted once for the scheduled cell. For example, if the UE is only provided with a CORESETPoolIndex value of 1 for all CORESETs on both the first and second scheduled cells, then the scheduled cell is not counted. Within the number of cells. For example, if for all CORESETs on both the first and second scheduling cells, the UE is not provided with a CORESETPoolIndex value, or is only provided with a CORESETPoolIndex value of 0, then the scheduled cell will not be counted. The number of communities.

[0129] For example, for a CORESET associated with the search space set for PDCCH used by the UE to perform scheduling on the scheduled cell, if the UE is not provided with a CORESETPoolIndex value for all CORESETs on both the first and second scheduled cells, then in The number of cells being dispatched is counted twice, that is... And not included For example, if the UE is not provided with a CORESETPoolIndex value on the first scheduling cell, and for the first CORESET on the second scheduling cell, the UE is not provided with a CORESETPoolIndex value or is provided with a CORESETPoolIndex value of 0, but for the second CORESET on the second scheduling cell, the UE is provided with a CORESETPoolIndex value of 1, then in The scheduled cell is counted twice, and in The count for the scheduled cell is repeated once. For example, if for the first CORESET on the first scheduled cell, the UE is not provided with a CORESETPoolIndex value or is provided with a CORESETPoolIndex value of 0, and for the second CORESET on the first scheduled cell, the UE is provided with a CORESETPoolIndex value of 1, and for the first CORESET on the second scheduled cell, the UE is provided with a CORESETPoolIndex value of 0, and for the second CORESET on the second scheduled cell, the UE is provided with a CORESETPoolIndex value of 1, then in... The scheduled cell is counted twice, and in The number of cells being dispatched is counted twice.

[0130] Figure 10 A method 1000 for a UE according to an embodiment of the present disclosure to determine the total number of physical downlink control channel (PDCCH) candidates and the total number of non-overlapping control channel elements (CCEs), the UE having cells scheduled from a first scheduling cell and a second scheduling cell, the first scheduling cell and the second scheduling cell having the same subcarrier spacing (SCS) configuration for the active downlink (DL) bandwidth part (BWP). For example, the steps of method 1000 may be provided by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 10 Method 1000 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0131] like Figure 10 As shown in this disclosure, method 1000 describes an example procedure for a UE to determine the total number of PDCCH candidates and the total number of non-overlapping CCEs, the UE having cells scheduled from a first scheduling cell and a second scheduling cell, the first scheduling cell and the second scheduling cell having the same SCS configuration for the active DL BWP. .

[0132] The UE is configured to perform scheduling in a first scheduling cell and a second scheduling cell 1010 on the scheduled cell. In step 1020, the UE determines whether a first condition is valid, the first condition being that the first scheduling cell is in... In the first set of each community and in In the second set of cells and the second scheduling cell In the first set of each community and in In the second set of cells. When the first condition (in step 1020) is valid, in step 1030, the UE, through the... In the first set of each community and in The scheduled cells of the first and second scheduled cells in the second set of cells are counted twice to calculate the scheduled cells for the SCS configuration. Total number of PDCCH candidates Total number of non-overlapping CCEs .

[0133] If the first condition (in step 1020) is invalid, in step 1040, the UE determines whether the second condition is valid. The second condition is whether either the first scheduling cell or the second scheduling cell is present. In the first set of each community and in In the second set of cells and the second dispatch cell or the first dispatch cell, only In the first set of each community or only in In the second set of cells. When the second condition (in step 1040) is valid, in step 1050, the UE, through respectively... In the first set of each community and in The scheduled cells in the second set of cells are counted twice, as are the cells scheduled in the first or second scheduling cell. In the first set of each community or only in The number of scheduled cells in the second set of cells or the first scheduled cell in the second set of cells is counted once to calculate the total number of PDCCH candidates and the configuration for SCS. The total number of non-overlapping CCEs.

[0134] When the second condition (in step 1040) is invalid, in step 1060, the UE determines whether the first scheduling cell or the second scheduling cell is in... The first set of cells contains 1060. When the first scheduling cell or the second scheduling cell is respectively in When the first set of cells is included, in step 1070, the UE performs separate operations on... The number of scheduled cells in the first or second scheduled cell of the first set of cells is counted once to calculate the total number of PDCCH candidates and the configuration for SCS. The total number of non-overlapping CCEs. Alternatively, in step 1080, the UE... The scheduled cells of the first or second scheduled cells in the second set of cells are counted once each. It is also possible that if a scheduled cell is only in one set of cells, then that set of cells is... In the first set of cells, the UE does not execute the steps after step 1050, and The scheduled cell is counted once in the first set of cells.

[0135] If the first scheduling cell and the second scheduling cell use different SCS configurations In order to enable PDCCH reception in the corresponding active DLBWP of the UE, and to count the scheduled cells for the CORESET associated with the search space set configured to the UE for monitoring the PDCCH used for scheduling on the scheduled cells, so as to determine the first and second scheduled cells. Value and The value, wherein the count for the first scheduling cell is the same as the case where the UE is not scheduled from the second scheduling cell on the scheduled cell, and the count for the second scheduling cell is the same as the case where the UE is not scheduled from the first scheduling cell on the scheduled cell.

[0136] Count the scheduled cells to determine the appropriate scheduling criteria for both the first and second scheduled cells. and It is detrimental to the PDCCH monitoring capability for other scheduled cells that have only one scheduling cell, because the PDCCH candidate of a scheduled cell with more than one scheduling cell needs to exist on more than one scheduling cell.

[0137] In the first method used to avoid disadvantageing a scheduled cell with a single scheduling cell, the UE PDCCH monitoring capability allocated to such a scheduled cell is counted only once. For example, if the scheduled cell and the scheduling cell can be the same cell, the cell is included only for itself as the scheduling cell (e.g., CIF value of 0). and / or Furthermore, for scheduling cells that are different from the scheduled cell (CIF value not equal to 0), the cell is not included. and / or In the middle. For example, if the scheduled cell and any scheduled cell are not the same cell, then only the scheduled cell with the smallest cell index is included. and / or Furthermore, for scheduling cells with large indexes, the cell is not included. and / or middle.

[0138] In the second approach, a time pattern can be introduced to determine when a cell can be scheduled from either the first or second cell. The time pattern can be a time slot pattern and can be determined by the UE based on the configuration of the search space set used for the scheduled cell, or provided to the UE by a higher layer when the configuration of the search space set used for the scheduled cell results in PDCCH monitoring from two scheduled cells in the same time slot. The time slot pattern can have a predetermined or configured duration, such as 10 or 40 time slots, or 10 milliseconds or 40 milliseconds. In the latter case, the number of time slots can be determined by multiplying the duration by the time slot configured by the SCS. The number of time slots per millisecond is determined. For example, for a 10-time-slot timing pattern, the UE can determine a 10-bit bitmap based on the configuration of the search space set for scheduled cells or a configuration provided by higher layers. This bitmap has a one-to-one mapping to the 10 time slots, where a bit value of "0" indicates that the cell can only be scheduled from the first scheduled cell in the corresponding time slot, and a bit value of "1" indicates that the cell can only be scheduled from the second scheduled cell in the corresponding time slot. Then, to determine the total number of PDCCH candidates in the time slot... Total number of non-overlapping CCEs When the corresponding bitmap value is "0", the UE determines the location by associating the scheduled cell with the first scheduled cell. and / or ,in, This refers to the SCS configuration of the active DL BWP in the first scheduling cell, and when the corresponding bitmap value is "1", the UE determines the scheduling cell by associating it with the second scheduling cell. and / or ,in, This refers to the SCS configuration of the active DL BWP in the second scheduling cell.

[0139] Figure 11 A method 1100 for scheduling a UE from a first cell and a second cell on a cell based on a time pattern, according to an embodiment of the present disclosure, is illustrated. For example, the steps of method 1100 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 11 Method 1100 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0140] like Figure 11 As shown, step 1110 describes the UE being configured for scheduling in a first and second cell. In step 1120, the UE determines a bitmap based on a search space set for that cell or a search space set provided by a higher layer, wherein each bit of the bitmap has a one-to-one mapping to a slot in a plurality of slots, where the number of slots is equal to the bitmap size. The bitmap size and the number of slots may be predetermined in system operation or provided to the UE by a higher layer. For a given slot, in step 1130, the UE determines whether the corresponding bit in the bitmap has a value of "0". When the UE determines that the bit has a value of "0", in step 1140, the UE monitors PDCCH candidates according to the search space set on the active DL BWP of the first cell. When the UE determines that the bit has a value of "1", in step 1150, the UE monitors PDCCH candidates according to the search space set on the active DL BWP of the second cell.

[0141] although Figure 10 and Figure 11 Methods 1000 and 1100 are shown, but it is possible to... Figure 10 and Figure 11 Make various changes. For example, although Figure 10 Method 1000 and Figure 11 Method 1100 is shown as a series of steps, but these steps may overlap, occur in parallel, occur at different times, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1100 may be executed in a different order.

[0142] Embodiments of this disclosure also describe UE behavior in response to changes in conditions used for monitoring the PDCCH on the scheduling cell. The following examples and embodiments describe UE behavior in response to changes in conditions used for monitoring the PDCCH on the scheduling cell.

[0143] When the scheduled cell is the primary cell, or the primary SCell (PSCell) from which the UE transmits the PUCCH, and the primary cell is scheduled from the SCell, the UE does not expect to receive an indication to disable the SCell (e.g., via a MAC control element). Similarly, in order to dynamically schedule the primary cell from the primary cell or from the SCell within a time slot, the UE does not change the active DLBWP on the SCell to a dormant BWP on the SCell, even if the SCell is included in a group of SCells for which the UE receives an indication to change the active DL BWP to a dormant DL BWP, the UE does not monitor the PDCCH. A dormant DL BWP on the cell is a BWP for which the UE does not monitor the PDCCH. UE behavior may also be conditional on the drx-onDurationTimer of the UE already enabled on the primary cell; otherwise, UE behavior may follow the indication to disable the SCell or change the active DL BWP on the SCell to a dormant BWP on the SCell. Similar to SCell deactivation, it is also possible that the UE does not intend to configure SCell as part of an SCell group, for which the UE may receive an instruction to change the active DL BWP to a dormant BWP.

[0144] Figure 12 A method 1200 for determining a change from an active DL BWP to a dormant BWP on a secondary cell, according to embodiments of the present disclosure, is illustrated. For example, the steps of method 1200 may be performed by… Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 12Method 1200 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0145] like Figure 12 As shown, according to this disclosure, method 1200 describes an example procedure for a UE to determine a change from an active DL BWP to a dormant BWP on a secondary cell. In step 1210, the UE is configured with a search space set for scheduling on the primary cell and a first SCell. In step 1220, the UE detects a DCI format that includes an indication of a change from an active DL BWP to a dormant BWP for a set of SCells including the SCell. In step 1230, the UE sets the active DL BWP on each SCell in the set of SCells to the corresponding dormant BWP, except for the first SCell, where the active DL BWP remains unchanged, and the UE continues to monitor the PDCCH according to the corresponding search space set. Note that an exception may be made if the drx-onDurationTimer on the primary cell is not running, in which case the UE may change the active DL BWP on the first SCell to a dormant BWP when it receives the corresponding indication in the DCI format.

[0146] When the scheduled cell is the primary cell or primary SCell (PSCell), and DCI format 2_6 instructs the UE (such as UE116) not to initiate the drx-onDurationTimer for the next DRX cycle on the primary cell, or when the UE does not detect DCI format 2_6 and its behavior is not to initiate the drx-onDurationTimer for the next DRX cycle on the primary cell, and the primary cell is scheduled from the SCell, the UE will not monitor the PDCCH used for scheduling on the primary cell during the next DRX cycle on the primary cell. This is beneficial for UE power saving or better utilization of PDCCH monitoring capabilities, since the serving gNB does not intend to schedule the UE on the primary cell.

[0147] Furthermore, the UE may assume that the DCI format 2_6 indication applies to both the primary cell and the SCell. In this case, the UE does not monitor the PDCCH used for scheduling on the SCell. Additionally, when the DRX cycles on the primary cell and the SCell are aligned, the UE does not initiate a drx-onDurationTimer on the SCell for the next DRX cycle.

[0148] Generally, the condition for scheduling from a first cell or a second cell on a given cell is that the corresponding DRX cycles on the first and second cells are aligned, and the UE can anticipate this alignment. Furthermore, the indication for the UE not to start the next DRX cycle on the primary cell's drx-onDurationTimer can also be used as an indication for the UE to change all active DL BWPs on all SCells to their corresponding dormant BWPs or to disable all SCells. The DRX cycle can be a long DRX cycle or a short DRX cycle.

[0149] When the UE is configured with a search space set for scheduling on both the primary cell and the SCell, in addition to the search space set corresponding to the primary cell, the UE can also be configured to monitor the PDCCH using the search space set for detecting DCI format 2_6 on the SCell. Otherwise, when the UE is scheduled on the primary cell only via the PDCCH according to the search space set on the primary cell, the UE can be configured to monitor the PDCCH using the search space set only on the primary cell for detecting DCI format 2_6.

[0150] Additionally, when the DRX period of a UE on the primary cell (such as UE 116) is different from the DRX period of a UE on the SCell, which is the scheduling cell for the primary cell, the UE does not monitor the PDCCH on the SCell for scheduling on the primary cell when the drx-onDurationTimer on the primary cell is not running.

[0151] Figure 13 A method 1300 is illustrated according to embodiments of the present disclosure for determining whether to monitor a PDCCH for scheduling on a primary cell based on an indication in a DCI format. For example, the steps of method 1300 may be provided by… Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 13 Method 1300 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0152] like Figure 13 As shown in this disclosure, method 1300 describes an example procedure for a UE to determine whether to monitor the PDCCH used for scheduling on the primary cell based on an indication in the DCI format.

[0153] In step 1310, the UE is configured with a search space set on the primary cell and SCell for scheduling on the primary cell. In step 1320, the UE is also configured with a search space set on the primary cell to monitor the PDCCH in order to detect DCI format 2_6, wherein DCI format 2_6 includes an indication to the UE of whether to initiate the drx-onDurationTimer for the next DRX cycle on the primary cell.

[0154] Based on this indication or based on the UE behavior configured when the UE does not detect DCI format 2_6, in step 1330, the UE determines whether it will initiate the drx-onDurationTimer for the next DRX cycle on the primary cell. If the UE initiates the drx-onDurationTimer for the next DRX cycle on the primary cell (as determined in step 1330), in step 1340, the UE monitors the PDCCH for scheduling on the primary cell on the SCell. If the UE does not initiate the drx-onDurationTimer for the next DRX cycle on the primary cell (as determined in step 1330), in step 1350, the UE monitors the PDCCH for scheduling on the primary cell on the SCell.

[0155] It is also possible that the UE applies the same behavior to the corresponding drx-onDurationTimer for whether to start the next DRX cycle based on the DCI format 2_6 detection (or the detection not being present) for both the primary cell and SCell.

[0156] In some embodiments, the UE behavior monitored by the PDCCH on the SCell for scheduling on the primary cell may also depend on the active DL BWP on the primary cell. For example, when the active DL BWP on the primary cell is not the default DL BWP (wherein the UE is typically instructed to switch to the default DL by the DCI format or based on the expiration of the timer bwp-InactivityTimer), or when it is the initial DL BWP when no default DL BWP is provided, the UE monitors the PDCCH for scheduling on the SCell based on the corresponding search space set. When the UE detects the DCI format in the PDSCH reception or PUSCH transmission on the first or second scheduling cell of the scheduled cell, the UE resets the timer bwp-InactivityTimer for the scheduled cell. As another example, when the active DL BWP on the primary cell is the default DL BWP, scheduling of the UE on the primary cell is typically infrequent, and monitoring the PDCCH for scheduling on the primary cell on the SCell may be detrimental to the UE. For example, due to additional UE power consumption or due to unnecessary use of UE PDCCH monitoring capabilities.

[0157] In some embodiments, when the UE changes the active DL BWP on the primary cell to the default DL BWP, the UE can stop monitoring the PDCCH for scheduling on the primary cell on the SCell, and when the UE changes the active DL BWP on the primary cell from the default DL BWP to another DL BWP, the UE can start monitoring the PDCCH for scheduling on the primary cell on the SCell. Alternatively, when the UE changes the active DL BWP on the primary cell to the default DL BWP or the initial DL BWP on the primary cell, the UE can switch from a first configuration of the search space set to a second configuration of the search space set to monitor the PDCCH for scheduling on the primary cell (or generally on the scheduled cell) on the SCell, and vice versa. As described in the first embodiment of this disclosure, the UE may also not specify the number of PDCCH candidates or the total number of non-overlapping CCEs in a time slot. and / or The main cell was counted twice.

[0158] Figure 14 A method 1400 is shown according to embodiments of the present disclosure for determining whether to monitor the PDCCH for scheduling on the primary cell based on the active DL BWP on the primary cell. For example, the steps of method 1400 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3UE 116) is used to execute. Figure 14 Method 1400 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0159] like Figure 14 As shown in this disclosure, method 1400 describes an example procedure by which a UE determines whether to monitor the PDCCH used for scheduling on the primary cell based on the active DL BWP on the primary cell.

[0160] In step 1410, the UE is configured with a search space set for scheduling on the primary cell and SCell. In step 1420, the UE determines whether the active DL BWP on the primary cell is the default DL BWP (or the initial DL BWP). When the active DL BWP on the primary cell is the default DL BWP (as determined in step 1420), in step 1430, the UE monitors the PDCCH for scheduling on the primary cell on the SCell, or monitors the PDCCH for scheduling on the primary cell on the SCell according to the second configuration of the search space set. Otherwise, when the active DL BWP on the primary cell is not the default DL BWP (as determined in step 1420), in step 1440, the UE does not monitor the PDCCH for scheduling on the primary cell on the SCell, or monitors the PDCCH for scheduling on the primary cell according to the first configuration of the search space set.

[0161] although Figure 12 Method 1200 is shown. Figure 13 Method 1300 is shown, and Figure 14 Method 1400 is shown, but various changes can be made to these diagrams. For example, although Figure 12 Method 1200 Figure 13 Method 1300 and Figure 14 Method 1400 is shown as a series of steps, but these steps may overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1400 may be executed in different orders.

[0162] Embodiments of this disclosure also describe a UE procedure for reporting HARQ-ACK information when the scheduled cell has more than one scheduled cell. The following examples and embodiments describe a procedure for a UE to report HARQ-ACK information when the scheduled cell has more than one scheduled cell.

[0163] In some embodiments, the Type 1 HARQ-ACK codebook does not depend on the UE's PDCCH reception, and therefore should be scheduled independently of whether the PDSCH reception on the cell is scheduled by the first PDCCH reception on the first scheduling cell or by the second PDCCH reception on the second scheduling cell.

[0164] In some embodiments, when the first scheduling cell is the same as the scheduled cell, and (i) for the first CORESET on the active DL BWP of the first scheduling cell, the UE is not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex value is 0, (ii) for the second CORESET on the active DL BWP of the first scheduling cell, the UE is provided with a CORESETPoolIndex value of 1, (iii) for all CORESETs on the active DL BWP of the second scheduling cell, the UE is not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex value is 0, or (iv) for all CORESETs on the active DL BWP of the second scheduling cell, the UE is provided with a CORESETPoolIndex value of 1, the UE (such as UE 116) generates a Type 1 HARQ-ACK codebook under the assumption that scheduling always comes from the first scheduling cell, in order to avoid any ambiguity in the contents of the Type 1 HARQ-ACK codebook.

[0165] UEs are separated into sets of the first scheduling cells. and set Generate a type 1 HARQ-ACK codebook, and will be used for the set The generated HARQ-ACK codebook and the subsequent set The generated HARQ-ACK codebooks are concatenated to obtain the total. One HARQ-ACK information bit. If the UE can be scheduled from the first scheduling cell and from the second scheduling cell, the first scheduling cell is both in The first set of service communities In the middle The second set of service communities In the middle, the second dispatch cell or in The first set of service communities In or in The second set of service communities In the case of scheduling originating from the first scheduling cell, the UE generates a schedule for each time slot.

[0166] Figure 15A method 1500 for generating a Type 1 Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) codebook according to embodiments of the present disclosure is shown. For example, the steps of method 1500 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 15 Method 1500 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0167] like Figure 15 As shown in this disclosure, method 1500 describes an example process for a UE to generate a type 1 HARQ-ACK codebook depending on the configuration of CORESET on a first cell and a second cell that are scheduled to be in the same cell.

[0168] In step 1510, the UE (such as UE 116) is configured with a search space set on the first cell and the second cell for scheduling on the first cell.

[0169] In step 1520, the UE determines, for the search space set on the active DL BWP of the first cell, (a) for matching the first cell with The first set of service communities The associated first CORESET, the UE is not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex value is 0, and (b) for connecting the first cell with The second set of service communities For the associated second CORESET, the UE is provided with a CORESETPoolIndex value of 1. Similarly, for the search space set on the active DL BWP of the second cell, (a) for connecting the second cell with The first set of service communities The associated first CORESET, the UE is not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex value is 0, or (b) for connecting the second cell with The second set of service communities The associated second CORESET, the UE is provided with a CORESETPoolIndex value of 1.

[0170] In step 1530, the UE is separated into a set of first scheduling cells. and set Generate a type 1 HARQ-ACK codebook, and the UE will be a set The generated HARQ-ACK codebook and the subsequent set are The generated HARQ-ACK codebooks are concatenated to obtain the total. One HARQ-ACK information bit.

[0171] For example, when the first scheduling cell is the same as the scheduled cell, and (i) for all CORESETs on the active DLBWP of the first scheduling cell, the UE is not provided with a CORESETPoolIndex, or the provided CORESETPoolIndex value is 0, and (ii) for all CORESETs on the active DLBWP of the second scheduling cell, the UE is provided with a CORESETPoolIndex value of 1, the UE needs to generate a Type 1 HARQ-ACK codebook assuming that the scheduling can come from either the first or the second scheduling cell, to avoid any ambiguity in the content of the Type 1 HARQ-ACK codebook. The UE is separated into a set of first scheduling cells. The set of second dispatch cells Generate a type 1 HARQ-ACK codebook, and will be used for the set The generated HARQ-ACK codebook and its subsequent set The generated HARQ-ACK codebooks are concatenated to obtain the total. One HARQ-ACK information bit. That is, if the UE can be scheduled from the first scheduling cell and the second scheduling cell, the first scheduling cell only... The first set of service communities In the middle, the second dispatch cell is only The second set of service communities In this case, the UE generates HARQ-ACK information for each time slot, assuming the scheduling originates from both the first and second scheduling cells. If the first scheduling cell only... In the second set of serving cells, and the second scheduling cell is only in The first set of service communities The same applies to the middle.

[0172] although Figure 15 Method 1500 is shown, but it is possible to... Figure 15 Make various changes. For example, although Figure 15 Method 1500 is shown as a series of steps, but these steps may overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1500 may be executed in different orders.

[0173] Embodiments of this disclosure also relate to designing downlink control signaling from a base station based on the variable scheduling delay requirements of the scheduled UE.

[0174] In some embodiments, referring to equation (1) above, the parameters The first CCE of the PDCCH candidate for the CCE aggregation level is randomized based on the C-RNTI of the UE (such as UE 116). Then, when the UE and other UEs have overlapping CCEs for some PDCCH candidates in a time slot, the overlap is not permanent between time slots. This applies to time slot-based PDCCH surveillance according to the first PDCCH surveillance type. For span-based PDCCH surveillance according to the second PDCCH surveillance type, the parameters of each time slot are updated. This will result in some overlapping CCEs for different UEs being permanent within the time slot. For example, for = (2, 2), if PDCCH candidates for different UEs overlap in a span (with a common CCE), they will overlap in all spans within the time slot, resulting in permanent blocking (inaccurate reception) of all PDCCH candidates except for one within the time slot. This is because according to... The PDCCH monitoring configuration for (2, 2) is designed to support low scheduling latency, so such blocking of PDCCH candidates is harmful and may result in the inability to meet scheduling latency requirements.

[0175] For example, UE according to combination The ability to monitor the PDCCH requires that the first symbol of two consecutive spans (including spans across time slots) be at least The symbols are separated as conditions. However, the UE's capability depends on the time it has available to process received PDCCH candidates before being required to receive new PDCCH candidates. Then, the first symbol of two consecutive spans (including spans across time slots) must be at least... Conditions separated by symbols may be unnecessary restrictions.

[0176] In some embodiments, the UE is supported in combining [various parameters] by providing the higher-layer parameter `monitoringSymbolsWithinSlot`, which indicates the PDCCH monitoring mode within a time slot. PDCCH monitoring is performed within a time slot. Beneficial to UE design complexity, the UE's ability to receive PDCCH in the symbols following the first three (3) symbols of a time slot depends on whether the UE supports only the first PDCCH monitoring type or at least the second PDCCH monitoring type, as the corresponding scheduling latency capabilities differ, and a smaller scheduling latency is associated with the second PDCCH monitoring type. For UEs supporting only the first PDCCH monitoring type, the capability to receive PDCCH after the third symbol of a time slot can be activated to achieve coexistence with LTE radio access technology, and can then be limited to SCS configuration only. This is because LTE only supports 15 kHz SCS.

[0177] If the UE's reception of a PDCCH candidate includes at least one RE indicated as unavailable by a higher layer, such as a RE indicated for use under the Common Reference Signal (CRS) of LTE Radio Access Technology, or a RE indicated for rate matching due to potential transmissions of other signaling, then the UE is not required to receive the PDCCH candidate. However, because several PDCCH candidates may include at least one such RE, and because for combinations... PDCCH monitoring may result in a small number of PDCCH candidates per span, so the inability of a UE to receive such PDCCH candidates may have a substantial adverse impact on the network's ability to schedule UEs and may thus increase the corresponding scheduling latency.

[0178] Therefore, embodiments of this disclosure take into account that when the UE is configured according to the combination When monitoring PDCCH, it is necessary to follow The span of a symbol or according to The duration of each symbol is used to randomize the position of the PDCCH candidate.

[0179] Embodiments of this disclosure also take into account the need to determine the UE based on the combination. Conditions for monitoring PDCCH.

[0180] Embodiments of this disclosure also consider the need to determine the UE's ability to receive PDCCH in the symbols of a time slot following the third symbol of the time slot, based on the capability for PDCCH monitoring type.

[0181] Additionally, embodiments of this disclosure take into account that when some REs for PDCCH reception are indicated as unavailable based on the capability used for PDCCH monitoring type, it is necessary to determine the UE's ability to receive PDCCH.

[0182] Accordingly, embodiments of this disclosure relate to situations where the UE is configured according to a combination When monitoring PDCCH, according to The span of a symbol or according to The duration of each symbol is used to randomize the position of the PDCCH candidate. This disclosure also relates to determining the position of the PDCCH candidate for the UE based on the combination. Conditions for monitoring PDCCH. This disclosure also relates to determining the UE's ability to receive PDCCH in the symbols of a time slot following the third symbol of that time slot, based on the capabilities used for PDCCH monitoring type. Additionally, this disclosure relates to determining the UE's ability to receive PDCCH when some REs for PDCCH reception are indicated as unavailable, based on the capabilities used for PDCCH monitoring type.

[0183] The embodiments of this disclosure provide according to The position of the PDCCH candidate is randomized by the span of each symbol transmission. The following examples and embodiments describe the randomization of the position of the PDCCH candidate according to the symbol transmission span. The span of a symbol transmission is used to randomize the position of the PDCCH candidate.

[0184] As described below, embodiments of this disclosure consider when the UE is configured according to a combination When monitoring PDCCH, according to The span of a symbol or according to The duration of each symbol is used to randomize the position of the PDCCH candidate.

[0185] Considering the search space determination described in equation (1), the time slots are determined. Variables at different first positions in the PDCCH candidate The time unit needs to be changed from a time slot to a span (or duration). For combinations PDCCH monitoring, with a maximum of [number] per time slot. A span, or equivalently, each time slot has a maximum The duration. In the following description, the span is used. Yes, but the equivalent determination of the search space applies to the duration. The situation.

[0186] To achieve randomization of the first CCE for PDCCH candidates in different spans, a span should be defined. The time unit. Because each time slot has a maximum A span, so ,in It is the span index within the time slot and Then, the search space determination can be inductively described as in equation (2) below, so as to also support the combination of... The second (span-based) PDCCH monitoring type, where the remainder of the term is as described in equation (1).

[0187] For CORESETCCE Related search space set For the carrier indicator field value The corresponding serving cell's active DL BWP, under PDCCH monitoring, is based on the first type (timeslot-based) case. PDCCH candidates in the search space set Corresponding aggregation level The CCE index, or the span in the case where PDCCH monitoring is based on the second type (based on span). The CCE index in this context is given by the following equation (2).

[0188]

[0189] In equation (2), for any CSS, Additionally, in equation (2), for the USS, if the PDCCH monitoring is based on the first type, then If PDCCH monitoring is based on type 2, then , ,for have ,for have ,for have ,and Similarly, based on combinations For span-based monitoring Instead During the duration middle, Although this embodiment takes into account A symbol, but when The same principle applies when there are multiple time slots (such as 2, 4 or 8 time slots).

[0190] Figure 16 A method 1600 for determining a search space according to an embodiment of the present disclosure is shown. For example, the steps of method 1600 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 16 Method 1600 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0191] like Figure 16 As shown, method 1600 describes an example process for a UE to determine a set of search spaces according to this disclosure.

[0192] In step 1610, the UE (such as UE 116) determines according to CORESET The search space set in which and having an SCS configuration Is the PDCCH monitoring on the DL BWP based on a slot-based first PDCCH monitoring type, or a combination based on a second PDCCH monitoring type? And based on span. When PDCCH monitoring is based on the first PDCCH monitoring type (as determined in step 1610), in step 1620, the UE sets... The corresponding PDCCH candidate CCE is determined according to equation (2), where, It is a time slot index. When PDCCH monitoring is based on a second PDCCH monitoring type (as determined in step 1610), in step 1630, the UE sets... (in, (This is a span index) or by setting (in, (The duration index) determines the corresponding PDCCH candidate CCE according to Equation 2.

[0193] although Figure 16 Method 1600 is shown, but it is possible to... Figure 16 Make various changes. For example, although Figure 16 Method 1600 is shown as a series of steps, but these steps may overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1600 may be executed in different orders.

[0194] Embodiments of this disclosure provide methods for determining combinations for PDCCH monitoring. The following examples and embodiments describe the determination of combinations for PDCCH monitoring. .

[0195] Embodiments of this disclosure contemplate use for a UE (such as UE 116) according to a combination Determine the conditions for PDCCH monitoring.

[0196] In some embodiments, the UE (such as UE 116) is configured according to the combination and according to combination To monitor the PDCCH. Note that... The larger the value, the greater the maximum number of PDCCH candidates. The larger the value, the more likely the UE can be used to monitor the SCS configuration. The maximum number of non-overlapping CCEs of PDCCH It is also larger. For example, for SCS configuration ,for have and , and for have and .

[0197] Therefore, for the UE, configuration based on the search space set has significant advantages when applicable. Combination of values It is beneficial. Used to determine combinations. The applicability conditions relate to the processing time available to the UE for PDCCH processing after the last symbol of the received PDCCH and before the first symbol of the next received PDCCH. For combinations... The processing time is The last symbol received by the PDCCH in a span has a interval between the first symbol received by the PDCCH in the immediately following span. The standard ratio of the symbols is between the first symbol received by the PDCCH in the span and the first symbol received by the PDCCH in the immediately following span. The standard for each symbol is more appropriate.

[0198] Figure 17 Figure 1700 illustrates an example configuration of the search space set according to an embodiment of the present disclosure.

[0199] like Figure 17 As shown, Figure 1700 illustrates an example search space set configuration according to an embodiment of the present disclosure and two possible criteria for determining the corresponding (X, Y) combinations.

[0200] The UE (such as UE 116) can be configured with a first search space set 1710 for first-type (slot-based) PDCCH surveillance and a second search space set for second-type (span-based) PDCCH surveillance. For example, the first span 1720 is over the third and fourth symbols of the slot, and the second span 1730 is over the ninth and tenth symbols of the slot.

[0201] If the UE performs a combination for monitoring the second type of PDCCH. The determination is based on the number of symbols between the first symbols of two consecutive spans, then the combination is Because the number of symbols needs to be at least There are 6 symbols, and it is 6 symbols. If the UE uses a combination for monitoring the second type of PDCCH... The determination is based on the number of symbols between the last symbol of the span and the first symbol of the next span, then the combination is... Because the number of symbols needs to be at least There are 4 symbols.

[0202] Therefore, it is preferable if the UE is based on the combination When monitoring the PDCCH on a cell, the UE supports PDCCH monitoring timing in any symbol of a time slot, where there is a PDCCH monitoring opportunity between the last symbol of a span and the first symbol of the immediately following span (for any two consecutive spans) (including spans across time slots). The minimum time interval for each symbol.

[0203] Embodiments of this disclosure provide the ability to determine, based on the PDCCH SCS, whether the UE is monitoring the PDCCH within a time slot. The following examples and embodiments describe this ability.

[0204] Embodiments of this disclosure consider the ability of a UE (such as UE 116) to receive PDCCH in a time slot symbol (after the third symbol of the time slot) based on the capability for PDCCH monitoring type.

[0205] In some embodiments, the UE monitors the PDCCH within a slot based on the PDCCH monitoring mode provided by the higher-layer parameter monitoringSymbolsWithinSlot, according to a combination To determine PDCCH surveillance within a time slot. For Type 1 (time slot-based) PDCCH surveillance, the UE may not have the capability to receive PDCCH in the symbols of that time slot after a predetermined first number of symbols (e.g., 3 symbols), or may only have the capability for SCS configuration. The UE needs the capability (15 kHz) to support coexistence with LTE radio access technology within the same bandwidth. For the second type (span-based) PDCCH surveillance, the UE needs the ability to receive the PDCCH after the first 3 symbols of the time slot, as the purpose of the second type of PDCCH surveillance is to minimize scheduling latency. Therefore, the UE needs to be configured for SCS. The ability to receive PDCCH after the first 3 symbols of a time slot can be associated with the UE's ability to monitor PDCCH according to the first or second type.

[0206] For example, because of the configuration for SCS The time slot duration is 0.25 milliseconds, which is small enough for typical services requiring low latency, so in addition to SCS configuration... In addition, the UE's ability to receive PDCCH after the first 3 symbols of the time slot used for Type 2 PDCCH monitoring can be restricted to SCS configuration. (The duration of the time slot is 0.5 milliseconds).

[0207] Figure 18 A method 1800 for determining a UE's capability to receive a PDCCH is illustrated according to embodiments of the present disclosure. For example, the steps of method 1800 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 18 Method 1800 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0208] like Figure 18 As shown, according to this disclosure, method 1800 describes determining the UE's ability to receive PDCCH based on a PDCCH monitoring pattern that includes the last symbol after the time slot.

[0209] In step 1810, a higher layer provides the UE (such as UE 116) with a configuration for searching the spatial set, which includes the parameter `monitoringSymbolsWithinSlot` indicating the PDCCH monitoring mode within a slot. In step 1820, the UE determines that it has the SCS configuration. Is the PDCCH monitoring on the DL BWP based on a slot-based first PDCCH monitoring type, or a combination based on a second PDCCH monitoring type? And based on span.

[0210] When PDCCH monitoring is based on the first PDCCH monitoring type (as determined in step 1820), in step 1830, the UE is configured only for the SCS. To monitor the PDCCH. When the PDCCH monitoring is based on a second PDCCH monitoring type (as determined in step 1820), in step 1840, the UE is configured for the SCS. And for SCS configuration To monitor PDCCH.

[0211] In some embodiments, the UE configures the search space set by including the higher-layer parameter dci-Format2-4. The ability to monitor PDCCH within a time slot also applies to UEs configured with Type 1 (time slot-based) PDCCH monitoring. The higher-layer parameter dci-Format2-4 indicates that the UE is configured to detect DCI format 2_4 based on a search space set, where DCI format 2_4 indicates the set of resources where the UE needs to cancel a PUSCH or SRS transmission. The purpose of this transmission cancellation is to free up time-frequency resources for transmissions of low-scheduled traffic, which is typically scheduled after the PUSCH or SRS transmission to be canceled. UEs capable of supporting PDCCH monitoring for detecting DCI format 2_4 need to support SCS configuration. Includes PDCCH monitoring within time slots.

[0212] although Figure 18 Method 1800 is shown, but it is possible to... Figure 18 Make various changes. For example, although Figure 18 Method 1800 is shown as a series of steps, but these steps may overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1800 may be executed in different orders.

[0213] Embodiments of this disclosure provide the ability of a UE to determine PDCCH candidates that include REs indicated as unavailable. The following examples and embodiments contemplate the ability of a UE to determine that it receives PDCCH candidates that include REs indicated as unavailable to the UE.

[0214] For example, the indication may be based on Layer 1 signaling in DCI format, or on higher-layer signaling that may be broadcast, for example, via system information or paging, or on UE-specific signaling including Radio Resource Control (RRC) that may be scheduled to the UE via PDSCH.

[0215] In some embodiments, if a UE (such as UE 116) monitors the PDCCH according to a first type (slot-based PDCCH monitoring), the UE typically has a sufficient number of PDCCH candidates or non-overlapping CCEs and does not need to incur the additional complexity of rate matching or puncturing REs indicated as unavailable for the PDCCH candidates in order to receive them. If the UE monitors the PDCCH according to a second type based on span, the number of candidates or non-overlapping CCEs can be significantly less than with slot-based PDCCH monitoring. For example, SCS configuration For slot-based PDCCH monitoring, the maximum number of PDCCH candidate or non-overlapping CCEs can be 36 or 56, respectively, while for combinations... For span-based PDCCH monitoring, the maximum number of PDCCH candidates or non-overlapping CCEs can be 12 and 18, respectively. For example, due to the combination... PDCCH monitoring can span across time slots, and because other signaling such as CRS when these operations coexist with LTE operations or CSI-RS (for which REs are indicated as unavailable) can permeate the entire active DL BWP, it is practically impossible for a UE to receive any PDCCH candidates in symbols that include these REs. Therefore, a UE with second-type (span-based) PDCCH monitoring can be required to perform rate matching or puncturing on the reception of PDCCH candidates in REs that have already indicated to the UE as unavailable for PDCCH reception.

[0216] Figure 19 A method 1800 for determining a UE's capability to receive a PDCCH is illustrated according to embodiments of the present disclosure. For example, the steps of method 1800 may be performed by... Figure 1 Any of UE 111-116 (such as Figure 3 UE 116) is used to execute. Figure 19 Method 1900 is for illustrative purposes only, and other embodiments may be used without departing from the scope of this disclosure.

[0217] like Figure 19 As shown, according to this disclosure, method 1900 describes a UE determining whether to discard or perform rate matching or puncturing for reception of a PDCCH candidate for a RE that is indicated to the UE as unavailable for PDCCH reception.

[0218] In step 1910, a higher layer provides the UE (such as UE 116) with a set of REs that are not available for PDCCH reception. In step 1920, the UE determines that the PDCCH candidates include a subset of REs from the RE set. In step 1930, the UE determines whether to require the UE to perform rate matching or puncturing for the reception of the PDCCH candidates in the RE subset. When the UE is required to perform rate matching or puncturing for the reception of the PDCCH candidates in the RE subset (as determined in step 1930), in step 1940, the UE receives the PDCCH candidates from the corresponding REs of the excluded RE subset. Alternatively, in step 1950, the UE may choose not to receive the PDCCH candidates.

[0219] In some embodiments, rate matching or puncturing of REs for PDCCH candidates by the UE to avoid REs indicated as unavailable for receiving PDCCH candidates can also be applied, regardless of the PDCCH monitoring type. For example, the rate matching or puncturing of PDCCH candidates may depend on the number of PDCCH candidates for or on the corresponding DCI format. For example, for a DCI format that provides system or paging information in a CSS (referred to as DCI format 1_0), or for a DCI format that indicates the UL-DL configuration in a time slot or set of time slots (referred to as DCI format 2_0), or for a DCI format that indicates the UE to cancel PUSCH or SRS transmission (referred to as DCI format 2_4), the UE may have very few PDCCH candidates, such as one or two. Then, even though the PDCCH monitoring used to detect the above-mentioned DCI formats may be time slot based, in practice the UE may need to rate match or puncture the reception of PDCCH candidates in REs indicated as unavailable and receive the PDCCH candidates. The UE may be required to perform rate matching or puncturing of PDCCH reception in an unavailable RE, which is used to detect a predetermined DCI format (such as DCI format 1_0, DCI format 2_0, or DCI format 2_4), or to detect the DCI format of the corresponding PDCCH candidate monitored by the UE according to CSS, and the UE may not be required to receive PDCCH candidates including unavailable REs for other DCI formats (such as the DCI format of the corresponding PDCCH candidate monitored by the UE according to USS).

[0220] In some embodiments, the rate matching or puncturing of PDCCH candidate reception by the UE in REs indicated to be unavailable to the UE may also depend on the number of REs. For example, if rate matching or puncturing would result in a code rate higher than a certain code rate for the DCI format associated with the PDCCH candidate, the UE may skip receiving the PDCCH candidate. For example, the code rate may be predetermined during system operation or provided to the UE by a higher layer.

[0221] although Figure 19 Method 1900 is shown, but it is possible to... Figure 19 Make various changes. For example, although Figure 19 Method 1900 is shown as a series of steps, but these steps may overlap, occur in parallel, occur in different orders, or occur multiple times. In another example, steps may be omitted or replaced by other steps. For example, the steps of method 1900 may be executed in different orders.

[0222] Figure 20 A user equipment (UE) according to an embodiment of the present disclosure is shown.

[0223] refer to Figure 20 The UE 2000 may include a controller 2010, a transceiver 2020, and a memory 2030. However, not all of the components shown are required. The UE 2000 may be composed of components such as... Figure 20 The implementation can be done with more or fewer components. Furthermore, according to another embodiment, the controller 2010, transceiver 2020, and memory 2030 can be implemented as a single chip.

[0224] UE 2000 can correspond to the UE described above. For example, UE 2000 can correspond to Figure 3 UE in the middle.

[0225] The aforementioned components will now be described in detail.

[0226] The controller 2010 may include one or more processors or other processing devices that control the proposed functions, processes, and / or methods. The operation of the UE 2000 may be implemented by the controller 2010.

[0227] Transceiver 2020 may include an RF transmitter for up-converting and amplifying the transmitted signal and an RF receiver for down-converting the frequency of the received signal. However, according to another embodiment, transceiver 2020 may be implemented with more or fewer components than shown in the components.

[0228] The transceiver 2020 can connect to the controller 2010 and send and / or receive signals. These signals may include control information and data. Furthermore, the transceiver 2020 can receive signals via a wireless channel and output signals to the controller 2010. The transceiver 2020 can also transmit signals output from the controller 2010 via a wireless channel.

[0229] The memory 2030 may store control information or data included in signals obtained by the electronic device 2000. The memory 2030 may be connected to the controller 2010 and store at least one instruction, protocol, or parameter for use in the proposed function, processing, and / or method. The memory 2030 may include read-only memory (ROM) and / or random access memory (RAM) and / or hard disk and / or CD-ROM and / or DVD and / or other storage devices.

[0230] Figure 21 A base station according to an embodiment of the present disclosure is shown.

[0231] refer to Figure 21 Base station 2100 may include controller 2110, transceiver 2120, and memory 2130. However, not all of the components shown are required. Base station 2100 may be composed of... Figure 21The implementation may use more or fewer components. Furthermore, according to another embodiment, the controller 2110, transceiver 2120, and memory 2130 may be implemented as a single chip.

[0232] Base station 2100 may correspond to the gNB described in this disclosure. For example, base station 2100 may correspond to Figure 2 gNB in ​​the middle.

[0233] The aforementioned components will now be described in detail.

[0234] The controller 2110 may include one or more processors or other processing devices that control the proposed functions, processes, and / or methods. The operation of the base station 2100 may be implemented by the controller 2110.

[0235] Transceiver 2120 may include an RF transmitter for up-converting and amplifying the transmitted signal, and an RF receiver for down-converting the frequency of the received signal. However, according to another embodiment, transceiver 2120 may be implemented with more or fewer components than shown in the components.

[0236] Transceiver 2120 can be connected to controller 2110 and send and / or receive signals. Signals may include control information and data. Furthermore, transceiver 2120 can receive signals via a wireless channel and output signals to controller 2110. Transceiver 2120 can also transmit signals output from controller 2110 via a wireless channel.

[0237] The memory 2130 may store control information or data included in the signals obtained by the base station 2100. The memory 2130 may be connected to the controller 2110 and store at least one instruction, protocol, or parameter for use in the proposed function, processing, and / or method. The memory 2130 may include read-only memory (ROM) and / or random access memory (RAM) and / or hard disk and / or CD-ROM and / or DVD and / or other storage devices.

[0238] Although the accompanying drawings illustrate different examples of user equipment, various changes can be made to the drawings. For example, the user equipment can include any number of each component in any suitable arrangement. Generally, the drawings do not limit the scope of this disclosure to any particular configuration(s). Furthermore, while the drawings illustrate operating environments in which the various user equipment features disclosed in this patent document can be used, these features can be used in any other suitable system.

[0239] Although this disclosure has been described with reference to exemplary embodiments, various changes and modifications will be apparent to those skilled in the art. This disclosure is intended to include such changes and modifications that fall within the scope of the appended claims. Nothing described herein should be construed as implying that any particular element, step, or function is essential and must be included within the scope of the claims. The scope of the patent subject matter is defined by the claims.

Claims

1. A method performed by a user equipment (UE) in a communication system, the method comprising: Determine the SCS configuration of the first subcarrier spacing associated with the primary cell. and the second SCS configuration associated with the secondary cell Are they the same? Determine the configuration with the first SCS The first total number of associated physical downlink control channel (PDCCH) candidates and with the second SCS configuration The second total number of associated PDCCH candidates , Among them, in the first SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated PDCCH candidates Confirmed Among them, in the first SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells include the primary cell, configured with the first SCS. The first total number of associated PDCCH candidates and with the second SCS configuration The second total number of associated second PDCCH candidates It has been confirmed.

2. The method according to claim 1, wherein, First SCS Configuration Smaller than the second SCS configuration .

3. The method according to claim 1, further comprising: in, First SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells only include the primary cell, and are configured with the first SCS. The first total of associated non-overlapping CCEs and with the second SCS configuration The second total of associated non-overlapping CCEs It has been confirmed.

4. The method according to claim 3, wherein, First SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated CCEs It has been confirmed.

5. The method according to claim 1, wherein, UE support The first set of serving cells, wherein for all control resource sets CORESET on all downlink bandwidth portions DL BWP of each scheduling cell from the first set of serving cells, the UE is not provided with CORESETPoolIndex, or is provided with CORESETPoolIndex with a single value.

6. A user equipment (UE) in a communication system, the UE comprising: transceiver; as well as The controller is configured as follows: Determine the SCS configuration of the first subcarrier spacing associated with the primary cell. and the second SCS configuration associated with the secondary cell Are they the same? Determine the configuration with the first SCS The first total number of associated physical downlink control channel (PDCCH) candidates and with the second SCS configuration The second total number of associated PDCCH candidates , Among them, in the first SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated PDCCH candidates Confirmed Among them, in the first SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells include the primary cell, configured with the first SCS. The first total number of associated PDCCH candidates and with the second SCS configuration The second total number of associated second PDCCH candidates It has been confirmed.

7. The UE according to claim 6, wherein, First SCS Configuration Smaller than the second SCS configuration .

8. The UE according to claim 6, wherein, The controller is configured to: Among them, in the first SCS configuration Second SCS configuration In different cases, by coming from The first set of serving cells and the first SCS configuration Related The downlink cells only include the primary cell, and are configured with the first SCS. The first total of associated non-overlapping CCEs and with the second SCS configuration The second total of associated non-overlapping CCEs It has been confirmed.

9. The UE according to claim 8, wherein, First SCS configuration Second SCS configuration With SCS configuration Under the same circumstances, through from The first set of serving cells and SCS configuration Related Each downlink cell includes the primary cell, configured with SCS. Total number of associated CCEs It has been confirmed.

10. The UE according to claim 6, wherein, UE support The first set of serving cells, wherein for all control resource sets CORESET on all downlink bandwidth portions DL BWP of each scheduling cell from the first set of serving cells, the UE is not provided with CORESETPoolIndex, or is provided with CORESETPoolIndex with a single value.

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