Ultra-Reliable Low Latency Communication (URLLC) Solution Selection

Abstract

The present invention provides implementation schemes of devices, systems and methods for user equipment (UE) to perform URLLC scheme selection. The UE can be connected to at least one base station. The UE can determine that the scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold duration. Based on the PDCCH and the PDSCH being scheduled within the threshold duration, one or more transmission control indicator (TCI) states are selected for receiving the PDSCH, regardless of the TCI state indicated in the PDCCH. The UE can use the selected one or more TCI states to receive the PDSCH.

Description

Technical Field

[0001] The present application relates to wireless devices, and more particularly to apparatus, systems and methods for obtaining on demand system information.

[0002] Related technical description

[0003] The use of wireless communication systems is growing rapidly. Wireless devices, especially wireless user equipment devices (UE), have become widespread. In addition, there are various applications (or applications) hosted on user devices that perform or rely on wireless communication, such as applications that provide messaging, email, browsing, video streaming, short videos, voice streaming, real-time games or other various online services.

[0004] In some cases, such as in 5G New Radio (NR), some system information is broadcast periodically by the cellular network, while other system information is available upon request. However, it may be up to a single UE to determine when to request on-demand system information. In addition, communication failures (e.g., communication failures of random access channels) may interfere with such requests for on-demand system information, and it may be up to a single UE to determine how to overcome such problems. Therefore, it is desirable to make improvements in the art. Summary of the invention

[0005] Embodiments of an apparatus, system, and method for performing ultra-reliable low-latency communication (URLLC) scheme selection in a wireless communication system are presented herein.

[0006] The UE may be connected to at least one base station. The UE may determine that scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold duration. Based on the PDCCH and the PDSCH being scheduled within the threshold duration, one or more transmission control indicator (TCI) states are selected for receiving the PDSCH, regardless of the TCI state indicated in the PDCCH. The UE may receive the PDSCH using the selected one or more TCI states.

[0007] In some embodiments, the non-transitory memory medium may include program instructions executable by the UE, which, when executed, cause the UE to perform at least a portion or all of the above operations. In some embodiments, the method performed by the UE may include the UE performing the above operations. In some embodiments, the method performed by the base station or network element may include the base station or network element performing the corresponding operations.

[0008] This disclosure is intended to provide a brief overview of some of the topics described in this document. Therefore, it should be understood that the above features are only examples and should not be construed as narrowing the scope or essence of the topics described herein in any way. Other features, aspects and advantages of the topics described herein will become apparent through the following detailed description, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] A better understanding of the embodiments disclosed herein may be obtained when the following detailed description is considered in conjunction with the following drawings, in which:

[0010] Figure 1 illustrating an exemplary wireless communication system according to some embodiments;

[0011] Figure 2 illustrates a base station (BS) in communication with a user equipment (UE) device according to some embodiments;

[0012] Figure 3 An exemplary block diagram of a UE according to some embodiments is shown;

[0013] Figure 4 illustrates an exemplary block diagram of a BS according to some embodiments;

[0014] Figure 5 illustrates an exemplary block diagram of a cellular communication circuit according to some embodiments;

[0015] Figure 6 and Figure 7 illustrates an example of a 5G NR base station (gNB) according to some embodiments;

[0016] Figure 8 illustrates an exemplary wireless network in communication with a UE according to some embodiments;

[0017] Fig. 9 An exemplary table showing URLLC scheme selection according to some embodiments is shown;

[0018] Figures 10 to 12 shows an example of TCI selection for a UE according to some embodiments; and

[0019] Fig.13 is a flow chart illustrating an exemplary method for determining TCI status for PDSCH reception according to some embodiments.

[0020] Although the present invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and described in detail herein. However, it should be understood that the drawings and detailed description thereof are not intended to limit the invention to the particular forms disclosed, but on the contrary, the purpose is to cover all modifications, equivalents and alternative forms falling within the spirit and scope of the invention as defined by the appended claims. DETAILED DESCRIPTION

[0021] Acronyms

[0022] The following acronyms are used in this patent application:

[0023] UE: User Equipment

[0024] BS: Base Station

[0025] ENB: eNodeB (base station)

[0026] LTE: Long Term Evolution

[0027] UMTS: Universal Mobile Telecommunications System

[0028] RAT: Radio Access Technology

[0029] RAN: Radio Access Network

[0030] E-UTRAN: Evolved UMTS Terrestrial RAN

[0031] CN: Core Network

[0032] EPC: Evolved Packet Core

[0033] MME: Mobility Management Entity

[0034] HSS: Home Subscriber Server

[0035] SGW: Serving Gateway

[0036] PS: Packet Switching

[0037] CS: Circuit Switched

[0038] EPS: Evolved Packet Switching System

[0039] RRC: Radio Resource Control

[0040] IE: Information Element

[0041] QoS: Quality of Service

[0042] QoE: Quality of Experience

[0043] TFT: Business Flow Template

[0044] RSVP: Resource Reservation Protocol

[0045] API: Application Programming Interface

[0046] the term

[0047] The following is a glossary of terms used in this patent application:

[0048] Memory medium—any of the various types of memory devices or storage devices. The term "memory medium" is intended to include installation media, such as CD-ROM, floppy disk 104, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory such as flash memory, magnetic media, for example, hard disk drives or optical storage devices; registers, or other similar types of memory elements, etc. The memory medium may also include other types of memory or combinations thereof. In addition, the memory medium may be located in a first computer that executes a program, or may be located in a different second computer that is connected to the first computer via a network such as the Internet. In the latter case, the second computer may provide program instructions for execution to the first computer. The term "memory medium" may include two or more memory media that may reside in different locations, such as different computers connected via a network.

[0049] Computer System—Any of various types of computing or processing systems, including a personal computer system (PC), a mainframe computer system, a workstation, a network appliance, an Internet appliance, a personal digital assistant (PDA), a television system, a grid computing system, or other devices or combinations of devices. In general, the term "computer system" can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.

[0050] User Equipment (UE) (or "UE device") - any of various types of computer systems or devices that are mobile or portable and that perform wireless communications. Examples of UE devices include mobile phones or smart phones (e.g., iPhone TM , based on Android TM phones), tablet computers (e.g., iPad TM 、Samsung Galaxy TM ), portable gaming devices (e.g., Nintendo DS TM , PlayStation Portable TM 、Gameboy Advance TM , iPhone TM), wearable devices (e.g., smart watches, smart glasses), laptops, PDAs, portable Internet devices, music players, data storage devices, other handheld devices, automobiles and / or motor vehicles, unmanned aerial vehicles (UAVs) (e.g., drones), UAV controllers (UACs), etc. In general, the term "UE" or "UE device" can be broadly defined to cover any electronic device, computing device, and / or telecommunication device (or a combination of these devices) that is easily transportable by a user and capable of wireless communication.

[0051] Processing element - refers to various elements or combinations of elements that are capable of performing functions in a device such as user equipment or cellular network equipment. Processing elements may include, for example, processors and associated memory, portions or circuits of individual processor cores, entire processor cores, processor arrays, circuits such as ASICs (application specific integrated circuits), programmable hardware elements such as field programmable gate arrays (FPGAs), and any of the above combinations.

[0052] Figure 1 and Figure 2 —Communications system

[0053] Figure 1 A simplified exemplary wireless communication system according to some embodiments is shown. Note that Figure 1 The system is only one example of possible systems, and features of the present disclosure may be implemented in any of a variety of systems as desired.

[0054] As shown, the exemplary wireless communication system includes a base station 102, which communicates with one or more user equipment 106A, user equipment 106B, etc. to user equipment 106N through a transmission medium. Each user equipment may be referred to as a "user equipment" (UE) in this article. Therefore, user equipment 106 is referred to as UE or UE device.

[0055] Base station (BS) 102 may be a base transceiver station (BTS) or a cell site ("cellular base station"), and may include hardware that enables wireless communications with UEs 106A-106N.

[0056] The communication area (or coverage area) of a base station may be referred to as a "cell". The base station 102 and the UE 106 may be configured to communicate over a transmission medium using any of a variety of radio access technologies (RATs), also referred to as wireless communication technologies or telecommunication standards, such as GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, Long Term Evolution-Advanced (LTE-A), 5G New Radio (5G NR), HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc. It should be noted that if the base station 102 is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB". It should be noted that if the base station 102 is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB".

[0057] As shown, base station 102 may also be configured to communicate with network 100 (e.g., a core network of a cellular service provider, a telecommunications network such as a public switched telephone network (PSTN), and / or the Internet, among other possibilities). Thus, base station 102 may facilitate communications between user devices and / or between user devices and network 100. In particular, cellular base station 102 may provide UE 106 with various telecommunication capabilities such as voice, short message service (SMS), and / or data services.

[0058] Base station 102 and other similar base stations operating according to the same or different cellular communication standards may thus provide a network of cells that can provide continuous or nearly continuous overlapping service to UEs 106A-106N and similar devices over a geographic area via one or more cellular communication standards.

[0059] Thus, although base station 102 may function as Figure 1 106A-106N, but each UE 106 may also be able to receive signals from (and possibly be within communication range of) one or more other cells (possibly provided by other base stations 102B-102N), which may be referred to as "neighboring cells". Such cells may also be able to facilitate communications between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or cells of any various other granularity of service area size. Other configurations are also possible.

[0060] In some embodiments, base station 102 may be a next generation base station, e.g., a 5G New Radio (5G NR) base station, or "gNB". In some embodiments, a gNB may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) network. In addition, a gNB cell may include one or more transition and reception points (TRPs). In addition, a UE capable of operating in accordance with 5G NR may be connected to one or more TRPs within one or more gNBs.

[0061] It should be noted that the UE 106 is capable of communicating using multiple wireless communication standards. For example, in addition to at least one cellular communication protocol (e.g., GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interface), LTE, LTE-A, 5G NR, HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc.), the UE 106 can be configured to communicate using wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth, Wi-Fi peer-to-peer, etc.). If desired, the UE 106 can also or alternatively be configured to communicate using one or more global navigation satellite systems (GNSS, such as GPS or GLONASS), one or more mobile television broadcast standards (e.g., Advanced Television Systems Committee-Mobile / Handheld (ATSC-M / H)), and / or any other wireless communication protocol. Other combinations of wireless communication standards (including more than two wireless communication standards) are also possible.

[0062] Figure 2 A user equipment 106 (e.g., one of devices 106A-106N) is shown in communication with base station 102 according to some embodiments. UE 106 may be a device with cellular communication capabilities, such as a mobile phone, handheld device, computer or tablet computer, or virtually any type of wireless device.

[0063] UE 106 may include a processor configured to execute program instructions stored in a memory. UE 106 may perform any of the method embodiments of the present invention by executing such stored instructions. Alternatively or in addition, UE 106 may include a programmable hardware element, such as a field programmable gate array (FPGA) configured to perform any of the method embodiments of the present invention or any part of any of the method embodiments of the present invention.

[0064] UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some embodiments, UE 106 may be configured to communicate using, for example, CDMA2000 (1xRTT, 1xEV-DO, HRPD, eHRPD) or LTE using a single shared radio component and / or GSM or LTE using a single shared radio component. The shared radio component may be coupled to a single antenna, or may be coupled to multiple antennas (e.g., for multiple input, multiple output or "multiple input-multiple output" (MIMO) antenna systems) for performing wireless communications. Typically, the radio component may include any combination of a baseband processor, an analog RF signal processing circuit (e.g., including filters, mixers, oscillators, amplifiers, etc.) or a digital processing circuit (e.g., for digital modulation and other digital processing). Similarly, the radio component may use the aforementioned hardware to implement one or more receive chains and transmit chains. For example, UE 106 may share one or more parts of a receive chain and / or transmit chain between multiple wireless communication technologies such as those discussed above.

[0065] In some embodiments, UE 106 may include any number of antennas and may be configured to use the antennas to transmit and / or receive directional wireless signals (e.g., beams). Similarly, BS 102 may also include any number of antennas and may be configured to use the antennas to transmit and / or receive directional wireless signals (e.g., beams). In order to receive and / or transmit such directional signals, the antennas of UE 106 and / or BS 102 may be configured to apply different "weights" to different antennas. The process of applying these different weights may be referred to as "precoding".

[0066] In some embodiments, UE 106 may include a separate transmit chain and / or receive chain (e.g., including separate antennas and other radio components) for each wireless communication protocol configured to communicate with it. As another possibility, UE 106 may include one or more radio components shared between multiple wireless communication protocols, and one or more radio components used uniquely by a single wireless communication protocol. For example, UE 106 may include a shared radio component for communicating using either LTE or 5GNR (or LTE or 1xRTT, or LTE or GSM), and a separate radio component for communicating using each of Wi-Fi and Bluetooth. Other configurations are also possible.

[0067] Figure 3 —UE block diagram

[0068] Figure 3 An exemplary simplified block diagram of a communication device 106 according to some embodiments is shown. Note that Figure 3The block diagram of the communication device is only an example of a possible communication device. According to the embodiment, in addition to other devices, the communication device 106 can be a user equipment (UE) device, a mobile device or a mobile station, a wireless device or a wireless station, a desktop computer or a computing device, a mobile computing device (such as a laptop computer, a notebook or a portable computing device), a tablet computer and / or a combination of devices. As shown in the figure, the communication device 106 may include a group of components 300 configured to perform core functions. For example, the group of components may be implemented as a system on a chip (SOC), which may include parts for various purposes. Alternatively, the group of components 300 may be implemented as a separate component or a group of components for various purposes. This group of components 300 may be (for example, communicatively; directly or indirectly) coupled to various other circuits of the communication device 106.

[0069] For example, the communication device 106 may include various types of memory (e.g., including NAND flash memory 310), input / output interfaces such as a connector I / F 320 (e.g., for connecting to a computer system; a docking station; a charging station; an input device such as a microphone, a camera, a keyboard; an output device such as a speaker; etc.), a display 360 that may be integrated with the communication device 106 or external to the communication device 106, and cellular communication circuits 330 such as for 5G NR, LTE, GSM, etc., and short-range to medium-range wireless communication circuits 329 (e.g., Bluetooth TM In some embodiments, the communication device 106 may include wired communication circuitry (not shown), such as, for example, a network interface card for Ethernet.

[0070] Cellular communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 335 and 336 as shown. Short-range to medium-range wireless communication circuitry 329 may also be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 337 and 338 as shown. Alternatively, short-range to medium-range wireless communication circuitry 329 may be (e.g., communicatively; directly or indirectly) coupled to antennas 335 and 336 in addition to or in lieu of being (e.g., communicatively; directly or indirectly) coupled to antennas 337 and 338. Short-range to medium-range wireless communication circuitry 329 and / or cellular communication circuitry 330 may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a multiple-input-multiple-output (MIMO) configuration.

[0071] In some embodiments, as further described below, the cellular communication circuit system 330 may include dedicated receive chains (which include and / or are (e.g., communicatively, directly or indirectly) coupled to a dedicated processor and / or radio component) for multiple RATs (e.g., a first receive chain for LTE and a second receive chain for 5G NR). In addition, in some embodiments, the cellular communication circuit system 330 may include a single transmit chain that can switch between radio components dedicated to specific RATs. For example, a first radio component may be dedicated to a first RAT, such as LTE, and may communicate with a dedicated receive chain and a transmit chain shared with an additional radio component, such as a second radio component that may be dedicated to a second RAT (e.g., 5G NR) and may communicate with the dedicated receive chain as well as the shared transmit chain.

[0072] The communication device 106 may also include and / or be configured for use with one or more user interface elements. The user interface elements may include various elements such as a display 360 (which may be a touch screen display), a keyboard (which may be a separate keyboard or may be implemented as part of a touch screen display), a mouse, a microphone and / or a speaker, one or more cameras, one or more buttons, and / or any of a variety of other elements capable of providing information to a user and / or receiving or interpreting user input.

[0073] The communication device 106 may also include one or more smart cards 345 having SIM (Subscriber Identity Module) functionality, such as one or more UICC cards (Universal Integrated Circuit Cards) 345 .

[0074] As shown, the SOC 300 may include a processor 302 that may execute program instructions for the communication device 106 and a display circuit 304 that may perform graphics processing and provide display signals to a display 360. The processor 302 may also be coupled to a memory management unit (MMU) 340 (which may be configured to receive addresses from the processor 302 and convert those addresses to locations in a memory (e.g., a memory 306, a read-only memory (ROM) 350, a NAND flash memory 310)) and / or to other circuits or devices (such as the display circuit 304, the short-range wireless communication circuit 229, the cellular communication circuit 330, the connector I / F 320, and / or the display 360). The MMU 340 may be configured to perform memory protection and page table translation or setup. In some embodiments, the MMU 340 may be included as part of the processor 302.

[0075] As described above, the communication device 106 may be configured to communicate using wireless and / or wired communication circuits. The communication device 106 may be configured to transmit a request to attach to a first network node operating according to a first RAT and to transmit an indication that the wireless device is capable of maintaining a substantially concurrent connection with the first network node and a second network node operating according to a second RAT. The wireless device may also be configured to transmit a request to attach to a second network node. The request may include an indication that the wireless device is capable of maintaining a substantially concurrent connection with the first and second network nodes. In addition, the wireless device may be configured to receive an indication that a dual connection (DC) has been established with the first and second network nodes.

[0076] As described herein, the communication device 106 may include hardware and software components for implementing features of using multiplexing to perform transmissions according to multiple radio access technologies in the same frequency carrier (e.g., and / or multi-frequency carriers) and various other technologies described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processor 302 of the communication device 106 may be configured to implement some or all of the features described in the present invention. Alternatively (or in addition), the processor 302 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 300, 304, 306, 310, 320, 329, 330, 340, 345, 350, and 360, the processor 302 of the communication device 106 may be configured to implement some or all of the features described in the present invention.

[0077] In addition, as described in the present invention, processor 302 may include one or more processing elements. Therefore, processor 302 may include one or more integrated circuits (ICs) configured to perform the functions of processor 302. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor 302.

[0078] In addition, as described in the present invention, the cellular communication circuit 330 and the short-range wireless communication circuit 329 may each include one or more processing elements and / or processors. In other words, one or more processing elements / processors may be included in the cellular communication circuit 330, and similarly, one or more processing elements / processors may be included in the short-range wireless communication circuit 329. Therefore, the cellular communication circuit 330 may include one or more integrated circuits (ICs) configured to perform the functions of the cellular communication circuit 330. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the cellular communication circuit 330. Similarly, the short-range wireless communication circuit 329 may include one or more ICs configured to perform the functions of the short-range wireless communication circuit 329. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the short-range wireless communication circuit 329.

[0079] Figure 4 —Block diagram of a base station

[0080] Figure 4 An exemplary block diagram of a base station 102 according to some embodiments is shown. Note that Figure 4 The base station of is only one example of a possible base station. As shown, the base station 102 may include a processor 404 that may execute program instructions for the base station 102. The processor 404 may also be coupled to a memory management unit (MMU) 440 or other circuit or device, which may be configured to receive addresses from the processor 404 and convert these addresses to locations in memory (e.g., memory 460 and read-only memory (ROM) 450).

[0081] Base station 102 may include at least one network port 470. Network port 470 may be configured to couple to a telephone network and provide access to the telephone network described above. Figure 1 and Figure 2 Multiple devices of the telephone network described in, such as UE device 106.

[0082] The network port 470 (or an additional network port) may also or alternatively be configured to couple to a cellular network, such as a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to multiple devices, such as the UE device 106. In some cases, the network port 470 may be coupled to a telephone network via the core network, and / or the core network may provide a telephone network (e.g., in other UE devices served by the cellular service provider).

[0083] In some embodiments, base station 102 may be a next generation base station, e.g., a 5G New Radio (5G NR) base station, or "gNB". In such embodiments, base station 102 may be connected to a legacy Evolved Packet Core (EPC) network and / or to an NR Core (NRC) network. Furthermore, base station 102 may be considered a 5G NR cell and may include one or more transition and reception points (TRPs). Furthermore, a UE capable of operating in accordance with 5G NR may be connected to one or more TRPs within one or more gNBs.

[0084] The base station 102 may include at least one antenna 434 and possibly multiple antennas. The radio component 430 and the at least one antenna 434 may be configured to function as a wireless transceiver and may be further configured to communicate with the UE device 106. The antenna 434 may communicate with the radio component 430 via a communication chain 432. The communication chain 432 may be a receive chain, a transmit chain, or both. The radio component 430 may be configured to communicate via various wireless communication standards, including but not limited to 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, Wi-Fi, etc.

[0085] The base station 102 may be configured to perform wireless communications using multiple wireless communication standards. In some cases, the base station 102 may include multiple radio components that enable the base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, the base station 102 may include an LTE radio component for performing communications according to LTE and a 5G NR radio component for performing communications according to 5G NR. In this case, the base station 102 may be able to operate as both an LTE base station and a 5G NR base station. As another possibility, the base station 102 may include a multimode radio component that can perform communications according to any one of a plurality of wireless communication technologies (e.g., 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0086] As further described later herein, BS 102 may include hardware and software components for implementing or supporting a specific implementation of the features described herein. The processor 404 of base station 102 may be configured to implement or support a specific implementation of part or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, processor 404 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit) or a combination thereof. Alternatively (or in addition thereto), in combination with one or more of other components 430, component 432, component 434, component 440, component 450, component 460, component 470, the processor 404 of base station 102 may be configured to implement or support a specific implementation of part or all of the features described herein.

[0087] In addition, as described in the present invention, the processor 404 may include one or more processing elements. Therefore, the processor 404 may include one or more integrated circuits (ICs) configured to perform the functions of the processor 404. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the processor 404.

[0088] In addition, as described herein, radio 430 may include one or more processing elements. Thus, radio 430 may include one or more integrated circuits (ICs) configured to perform the functions of radio 430. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of radio 430.

[0089] Figure 5 —Block diagram of cellular communication circuit

[0090] Figure 5 An exemplary simplified block diagram of a cellular communication circuit according to some embodiments is shown. Note that Figure 5 The block diagram of the cellular communication circuitry of is only one example of possible cellular communication circuitry; other circuitry, such as circuitry that includes or is coupled to sufficient antennas for different RATs to perform uplink activities using separate antennas, is also possible. According to an embodiment, the cellular communication circuitry 330 may be included in a communication device such as the communication device 106 described above. As described above, the communication device 106 may be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices, among other devices.

[0091] Cellular communication circuitry 330 may be (eg, communicatively; directly or indirectly) coupled to one or more antennas, such as ( Figure 3 In some embodiments, the cellular communication circuit system 330 may include dedicated receive chains (which include and / or are (e.g., communicatively, directly or indirectly) coupled to dedicated processors and / or radio components) for multiple RATs (e.g., a first receive chain for LTE and a second receive chain for 5G NR). For example, Figure 5 As shown, the cellular communication circuit 330 may include a modem 510 and a modem 520. The modem 510 may be configured for communication according to a first RAT (e.g., such as LTE or LTE-A), and the modem 520 may be configured for communication according to a second RAT (e.g., such as 5G NR).

[0092] As shown, the modem 510 may include one or more processors 512 and a memory 516 in communication with the processor 512. The modem 510 may communicate with a radio frequency (RF) front end 530. The RF front end 530 may include circuits for transmitting and receiving radio signals. For example, the RF front end 530 may include a receiving circuit (RX) 532 and a transmitting circuit (TX) 534. In some embodiments, the receiving circuit 532 may communicate with a downlink (DL) front end 550, which may include circuits for receiving radio signals via an antenna 335a.

[0093] Similarly, the modem 520 may include one or more processors 522 and a memory 526 in communication with the processor 522. The modem 520 may communicate with the RF front end 540. The RF front end 540 may include circuits for transmitting and receiving radio signals. For example, the RF front end 540 may include a receiving circuit 542 and a transmitting circuit 544. In some embodiments, the receiving circuit 542 may communicate with the DL front end 560, which may include circuits for receiving radio signals via the antenna 335b.

[0094] In some embodiments, the switch 570 may couple the transmit circuit 534 to an uplink (UL) front end 572. In addition, the switch 570 may couple the transmit circuit 544 to the UL front end 572. The UL front end 572 may include circuitry for transmitting radio signals via the antenna 336. Thus, when the cellular communication circuit 330 receives an instruction to transmit according to a first RAT (e.g., via a transmit chain including the transmit circuit 534 and the UL front end 572) supported by the modem 510, the switch 570 may be switched to a first state that allows the modem 510 to transmit signals according to the first RAT (e.g., via a transmit chain including the transmit circuit 534 and the UL front end 572). Similarly, when the cellular communication circuit 330 receives an instruction to transmit according to a second RAT (e.g., via a transmit chain including the transmit circuit 544 and the UL front end 572) supported by the modem 520, the switch 570 may be switched to a second state that allows the modem 520 to transmit signals according to the second RAT (e.g., via a transmit chain including the transmit circuit 544 and the UL front end 572).

[0095] In some embodiments, the cellular communication circuit 330 may be configured to transmit a request to attach to a first network node operating according to a first RAT via the first modem when the switch is in the first state, and to transmit an indication that the wireless device is capable of maintaining a substantially concurrent connection with the first network node and a second network node operating according to a second RAT via the first modem when the switch is in the first state. The wireless device may also be configured to transmit a request to attach to the second network node via the second radio component when the switch is in the second state. The request may include an indication that the wireless device is capable of maintaining a substantially concurrent connection with the first and second network nodes. In addition, the wireless device may be configured to receive an indication that a dual connection with the first and second network nodes has been established via the first radio component.

[0096] As described herein, the modem 510 may include hardware and software components for implementing features of using multiplexing to perform transmissions according to multiple radio access technologies in the same frequency carrier and various other technologies described herein. The processor 512 may be configured to implement part or all of the features described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively (or in addition), the processor 512 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 530, 532, 534, 550, 570, 572, 335, and 336, the processor 512 may be configured to implement part or all of the feature parts described herein.

[0097] In some embodiments, processors 512, 522, etc. may be configured to implement or support a specific implementation of part or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, processors 512, 522, etc. may be configured as programmable hardware elements such as field programmable gate arrays or as application-specific integrated circuits or a combination thereof. In addition, as described in the present invention, processors 512, 522, etc. may include one or more processing elements. Therefore, processors 512, 522, etc. may include one or more integrated circuits (ICs) configured to perform the functions of processors 512, 522, etc. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processors 512, 522, etc.

[0098] As described herein, the modem 520 may include hardware and software components for implementing the use of multiplexing to perform transmissions according to multiple radio access technologies in the same frequency carrier and various other technologies described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processor 522 may be configured to implement part or all of the feature parts described herein. Alternatively (or in addition), the processor 522 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit). Alternatively (or additionally), in combination with one or more of the other components 540, 542, 544, 550, 570, 572, 335, and 336, the processor 522 may be configured to implement part or all of the feature parts described herein.

[0099] Figure 6 to Figure 7 —5G NR architecture

[0100] In some implementations, fifth generation (5G) wireless communications will initially be deployed in parallel with other wireless communications standards (e.g., LTE). Figure 6 6 shows a possible standalone (SA) implementation of a Next Generation Core (NGC) network 606 and a 5G NR base station (e.g., gNB 604), dual connectivity between LTE and 5G New Radio (5G NR or NR), such as according to Figure 7 The exemplary non-standalone (NSA) architecture shown has been specified as part of the initial deployment of NR. Figure 7As shown, the evolved packet core (EPC) network 600 may continue to communicate with the current LTE base station (e.g., eNB 602). In addition, the eNB 602 may communicate with the 5G NR base station (e.g., gNB 604), and data may be transferred between the core network 600 and the gNB 604. In some cases, the gNB 604 may also have at least a user plane reference point with the EPC network 600. Thus, the EPC network 600 may be used (or reused), and the gNB 604 may serve as additional capacity for the user equipment, for example, to provide increased downlink throughput for the UE. In other words, LTE may be used for control plane signaling, and NR may be used for user plane signaling. Thus, LTE may be used to establish a connection with the network, and NR may be used for data services. It should be understood that many other non-independent architecture variants are possible.

[0101] Figure 8 —Wireless communication system

[0102] Figure 8 An example simplified portion of a wireless communication system is shown. A UE 106 may communicate with a wireless network (e.g., a radio access network (RAN)), which may include one or more base stations (BS) 102 and may provide a connection to a core network (CN) 100 (such as an evolved packet core (EPC)). The base station 102 may be an eNodeB and / or a gNB (e.g., a 5G or NR base station) or other type of base station. The UE 106 may communicate with the base station 102 wirelessly. The base station 102 may in turn be coupled to the core network 100. As shown, the CN 100 may include a mobility management entity (MME) 322, a home subscriber server (HSS) 324, and a serving gateway (SGW) 326. The CN 100 may also include various other devices well known to those skilled in the art.

[0103] The operations described herein as being performed by a wireless network may be performed by Figure 8 The operations described herein as being performed by one or more of the network devices shown, such as the base station 102 or the CN 100, and / or one or more of the MME 322, the HSS 324, or the SGW 326 in the CN 100, and other possible devices. The operations performed by the radio access network (RAN) may be performed, for example, by the base station 102, or by other components of the RAN that may be used to connect the UE and the CN.

[0104] URLLC Solution Selection

[0105] In some embodiments, the following Ultra-Reliable Low Latency Communication (URLLC) scheme is supported, where PDSCH can be carried by multiple Transmission Configuration Indicator (TCI) states (or beams):

[0106] Solution 1a: Multiplexing PDSCHs from different TCI states using spatial domain multiplexing (SDM);

[0107] Solution 2a / 2b: Multiplex PDSCHs from different TCI states using frequency domain multiplexing (FDM);

[0108] Solution 3: Multiplexing PDSCHs from different TCI states in a time slot using time domain multiplexing (TDM); and

[0109] Solution 4: Multiplex PDSCHs from different TCI states across time slots in TDM mode.

[0110] In some embodiments, all URLLC schemes are scheduled by a single PDCCH. The scheme may be indicated in the RRC signaling from the base station. Additionally or alternatively, the scheme may be dynamically changed using additional signaling, such as within the DCI.

[0111] The UE can usually detect which beam or beams (e.g., TCI) to use to receive the PDSCH. However, if the UE is scheduled to receive the PDSCH within a threshold amount of time or a threshold number of symbols (e.g., 28 symbols, etc.), the UE may not be able to decode the PDCCH in time to determine the TCI to use for receiving and decoding the PDSCH. Therefore, depending on various factors, there are a variety of different implementations that can be applied.

[0112] For example, if the UE supports default PDSCH quasi-colocation (QCL) based on multiple TCIs, the UE may receive the PDSCH using two TCI states corresponding to the lowest TCI code point in the DCI.

[0113] Otherwise, the UE may use a single TCI state to receive the PDSCH. When multiple CORESETs are configured, the single TCI state may indicate the TCI state with the lowest ID applied to the CORESET in the latest slot. If no CORESET is configured, the single TCI state may indicate the TCI state with the lowest ID activated by the MAC CE.

[0114] In some embodiments, dynamic switching of URLLC scheme selection can be performed by Fig. 9 The table description shown in , where:

[0115] Condition 1: The indication entry in PDSCH-TimeDomainAllocationList contains URLLCRepNum (>1) in the time domain resource allocation (TDRA) in the DCI;

[0116] Condition 2: The indication entry in PDSCH-TimeDomainAllocationList does not contain URLLCRepNum (>1) in the time domain resource allocation (TDRA) in the DCI, but at least one entry contains it; and

[0117] Condition 3: There is no entry in PDSCH-TimeDomainAllocationList containing URLLCRepNum (>1) in the time domain resource allocation (TDRA) in the DCI.

[0118] In some embodiments, when the scheduling offset is below a threshold (e.g., the UE cannot decode the PDCCH in time to determine the indicated TCI for PDSCH decoding), the UE may apply two TCI states to receive the PDSCH, if supported. However, there may be some issues. For example, it is not clear what UE assumptions are made for the URLLC scheme for PDSCH reception when the number of indicated TCI states in the DCI field is 1.

[0119] In addition, it is unclear how to map TCI states to DMRS ports when the number of code division multiplexing (CDM) groups indicated for DMRS is not 2 (for example, when the number of CDM groups indicated is 1 or 3, and other cases).

[0120] In addition, when the scheduling offset is below the threshold, if the UE does not support multiple TCI as the default PDSCH QCL, the UE may apply 1 TCI state to receive PDSCH. However, in this case, it is unclear what UE assumptions are made for the URLLC scheme for PDSCH reception when the number of indicated TCI states in the DCI field is 2.

[0121] Therefore, in one embodiment, for Fig. 9 The UE assumption of the URLLC scheme of the table shown in can be based on the number of indicated TCI states. Then, one of the two TCI states for receiving PDSCH can be used to decode the PDSCH. As a first option, the UE can select a first TCI state; alternatively, the UE can select a second TCI state. As another possibility, which TCI state to apply can be configured by the base station through higher layer signaling (e.g., RRC signaling or downlink control information (DCI)). For example, the selection can be explicitly indicated or derived from other information (e.g., a DCI indication, such as a DMRS port index indication). As another possibility, the TCI state can be selected based on the time slot index, for example, the first TCI state can be selected for even time slots, and the second TCI state can be selected for odd time slots, and so on.

[0122] Fig.10 Examples of these various embodiments are provided. As shown, the UE can support the use of two TCI states. The TCI state can be activated by the MAC CE (e.g., from the lowest TCI code point to the highest code point). Therefore, the UE can be configured to select the lowest TCI code point including two TCI states. As shown, the lowest TCI code point with two TCI states is TCI 3 and TCI 4. Therefore, the TCI code point can be used as a default non-periodic CSI-RS QCL assumption. In addition, as shown in the figure, the UE is configured to receive PDSCH within a threshold, that is, the scheduling offset is less than a threshold of 28 symbols (which is only exemplary, and other numbers of symbols or durations are envisioned). Therefore, the UE can ignore the PDCCH TCI indication of TCI 5 and select between TCI 3 and TCI 4 for time slot N and time slot N+1 according to the embodiments described herein. In particular, the UE may select TCI 3 (option 1), the UE may select TCI 4 (option 2), the UE may select TCI 3 or TCI 4 based on signaling from the base station (option 3), or the UE may select one TCI for time slot N and a different TCI for time slot N+1 (e.g., TCI 3 and TCI 4, respectively, although the order may be reversed).

[0123] In some embodiments, UE assumptions for URLLC schemes (e.g., reference Fig. 9 The table in ( ) can be based on the number of TCI states and / or the number of TCI states to be used for receiving the PDSCH indication. In one example, for example, in this case, the number of TCI states for determining URLLC can always be 2.

[0124] Similar to the above, when a PDSCH transmission occurs within a threshold, one or more of the following embodiments may be applied. In one option, this may be considered an error condition. In particular, the entire PDSCH transmission opportunity should be within or above the scheduling offset, or the number of indicated TCI states should be equal to the number of TCI states of the buffered PDSCH. Therefore, instead of addressing this situation, it may be best for the standard to specify that the following items should not be performed: for example, the base station is not within the threshold duration and does not schedule PDSCH transmission outside of it.

[0125] In another option, Fig. 9 The UE assumption for the URLLC scheme of the table in can be based on the minimum value of {N,M}, where N represents the number of TCI states indicated and M represents the number of TCI states for which PDSCH is received before the threshold. As another option, for Fig. 9The UE assumptions for the URLLC schemes in the table are based on the maximum values ​​of {N,M}. As another option, Fig. 9 The UE assumptions for the URLLC scheme of the table in are based on the minimum value of {N+M,2}. In each case, the resulting TCI state can be 1 or 2. In one embodiment, if the total number of different TCI states for receiving PDSCH is higher than 1, the UE can select a TCI state to receive each PDSCH repetition, for example, for each PDSCH time slot. The various embodiments for selecting TCI time slots discussed in this article can be applied.

[0126] Fig.11 Examples of various embodiments described herein are provided. Fig.10 , in the example shown, the default TCI code points with two TCI states are 3 and 4. In this example, the PDCCH indicates that TCI 5 should be used; however, the PDSCH is transmitted within the threshold (time slot N+1) and also outside the threshold (time slot N+2). According to the implementation scheme discussed above, when the UE assumes a minimum value based on {N,M}, the number of TCI states for determining the URLLC scheme may be 1. Alternatively, when the UE assumes a maximum value based on {N,M}, the number of TCI states for determining the URLLC scheme may be 2. Alternatively, when the UE assumes a minimum value based on {N+M,2}, the number of TCI states for determining the URLLC scheme may be 2. In time slot N+1, TCI 3 or TCI 4 may be used to receive PDSCH, for example, based on the above description of Fig.10 However, in at least some embodiments, in time slot N+2, TCI 5 may be used to receive PDSCH because there is time for the UE to decode the PDCCH to determine and use the specified TCI state from the PDCCH.

[0127] If the number of TCI states for buffering PDSCH before the threshold is 2, and the number of CDM groups for indication of DMRS is 1, one or more of the following embodiments may be applied.

[0128] In some embodiments, for example, for a single TRP scheme (Rel-15) or scheme 4, a DMRS port may be mapped to a TCI state. Various embodiments discussed herein (e.g., above) may be used to perform TCI selection. In one example, the index of the TCI state may be equal to the indicated CDM group index mod 2.

[0129] In another embodiment, this situation may be considered an error. For example, the base station may not allow the indicated CDM group for the DMRS to not match the number of TCI states.

[0130] In one embodiment, for scheme 2a / 2b, a DMRS port may be mapped to a first TCI state for a first half of an RB and mapped to a second TCI state for a second half of an RB.

[0131] In one embodiment, for scheme 3, a DMRS port may be mapped to a first TCI state for a first PDSCH repetition and to a second TCI state for a second repetition.

[0132] In one embodiment, for Scheme 4, DMRS ports for some PDSCH slots may be mapped to a first TCI state, and DMRS ports for the remaining PDSCH slots may be mapped to a second TCI state. The mapping mode may be configured by higher layer signaling or otherwise.

[0133] As another option (e.g., in conjunction with the various embodiments discussed herein), if URLLCSchemeEnabler is configured and if URLLCRepNum>1 is indicated by TDRA in DCI, then Scheme 4 may be applied, otherwise Scheme 3 may be applied. Alternatively, Scheme 3 may be applied regardless of whether URLLCRepNum>1 is indicated by DCI.

[0134] If URLLCSchemeEnabler is not configured and if URLLCRepNum>1 is indicated by TDRA in DCI, then Scheme 4 may be applied. Otherwise, if URLLCSchemeEnabler is not configured, then Scheme 2a / 2b may be applied.

[0135] If the number of TCI states for buffering PDSCH before the threshold is 2, and the number of CDM groups for indication of DMRS is 3, one or more of the following embodiments may be applied.

[0136] In one embodiment, a single TRP solution (Rel-15) may be used. In this case, the DMRS port should be mapped to one TCI state. Various embodiments discussed herein may be used for TCI state selection. Additionally or alternatively, the index of the TCI state may be equal to the indicated CDM group index mod 2.

[0137] In another embodiment, this situation may be considered an error. For example, the base station may not allow the indicated CDM group for the DMRS to not match the number of TCI states.

[0138] In one embodiment, for scheme 1a, the DMRS port and TCI mapping may be determined by the CDM group index.Alternatively or additionally, the DMRS port and TCI mapping may be configured by higher layer signaling (eg, an explicit or implicit message from a base station).

[0139] In some embodiments, the number of TCI states for determining the URLLC scheme is based on the number of indicated TCI states (N, e.g., N=2) and / or the number of TCI states for receiving the PDSCH before a threshold (M, e.g., M=1). In one embodiment, the URLLC scheme may be determined based only on N. Alternatively, the URLLC scheme may be determined based only on M. Other possibilities or combinations are contemplated.

[0140] When the PDSCH transmission is within the threshold, the number of TCI states for determining the URLLC scheme may be equal to the number of different TCI states for receiving the entire PDSCH transmission opportunity, which should not exceed 2.

[0141] However, if the number of different TCI states exceeds 2, in one embodiment, the UE may apply the beam pattern based on the first two different TCI states in sequence, and / or the UE may apply the second TCI state to receive all remaining repetitions. Alternatively, similar to the above, the portion of the PDSCH received after the threshold may be set based on the TCI state indicated by the PDCCH.

[0142] In one embodiment, the number of TCI states that determine the URLLC scheme can be set to a minimum value of {N,M} or a maximum value of {N,M} as needed.

[0143] In other embodiments, this situation may be considered an error and may not be allowed by the standard and / or the base station.

[0144] Fig.12 Examples corresponding to these embodiments are provided. As shown, PDSCH is transmitted across time slots N, N+1, and N+2. In this example, for time slot N, the UE can use a first TCI state in default TCI states 3 and 4, and for time slot N+1, the UE can use a second TCI state in default TCI states 3 and 4. As shown, the UE can use TCI 3 for time slot N and TCI 4 for time slot N+1. For N+2, the UE can use either TCI 3 or TCI 4. However, as discussed above, the UE can be configured to use TCI5 based on the PDCCH indication because time slot N+2 is outside the threshold.

[0145] Note that although the various embodiments described herein relate to URLLC, they may also be applied to non-URLLC communications, such as for performing TCI state selection.

[0146] Fig.13 - Determine the TCI state for PDSCH reception

[0147] Fig.13 An exemplary technique for determining TCI state for PDSCH reception is shown. Fig.13 Aspects of the method may be implemented by a wireless device such as UE 106, which communicates with one or more base stations (e.g., BS 102) as shown in the accompanying drawings and as described with respect to the accompanying drawings, or more generally, as needed, in combination with any of the computer systems or devices shown in the accompanying drawings and other circuits, systems, devices, elements or components and other devices shown in the accompanying drawings. For example, one or more processors (or processing elements) of the UE (e.g., processor 402, baseband processor, processor associated with communication circuits, etc.) may cause the UE to perform some or all of the elements of the method shown. It should be noted that although at least some elements of the method are described in a manner involving the use of communication technologies and / or features associated with 3GPP specification documents, such description is not intended to limit the present disclosure, and various aspects of the method may be used in any suitable wireless communication system as needed. In various embodiments, some of the elements of the method shown may be performed simultaneously in an order different from the order shown, may be replaced by other method elements, or may be omitted. Additional method elements may also be performed as needed. As shown, the method may operate as follows.

[0148] According to some embodiments, UE 106 may establish communication with network 100 (1102). Communication may be performed via any number of TRPs (e.g., any number of BSs 102). It should be understood that multiple TRPs may be controlled or coordinated by a single network element of network 100 (e.g., an element of core network 606 or 600 or a radio access network (RAN)). For example, one TRP may be a macro cell and another TRP may be a small cell. One or more TRPs may operate according to any of a variety of wireless standards and / or using any combination of frequency resources. For example, one TRP may be associated with licensed access and another TRP may be associated with unlicensed access. The UE may be configured to receive a PDCCH or PDSCH from one or more base stations or TRPs in the following steps.

[0149] The UE may determine that reception of the PDSCH for the UE is scheduled within a threshold duration (eg, time period, symbol duration, etc.) of the PDDCH (1304).

[0150] Based on the PDCCH and PDSCH being scheduled within a threshold duration, the UE may select one or more transmission control indicator (TCI) states for receiving the PDSCH (1306). These selected TCI states may be selected regardless of the TCI state indicated in the PDCCH. For example, the PDCCH and the selected TCI state may be the same or different, but the selection mechanism for the TCI state may not be based on the TCI state indicated in the PDCCH, e.g., at least for the portion of the PDSCH received within the threshold duration. In some embodiments, the UE may not decode the PDCCH or determine or use the indicated TCI state in the PDCCH until after the threshold duration.

[0151] The selection of one or more TCI states may be based on various embodiments described herein. For example, the UE may be configured to receive information indicating one or more TCI states within a DCI. Thus, the selection of one or more TCI states may be based on the number of TCI states indicated in the DCI.

[0152] For example, if the UE supports and / or is configured to use two TCI states, but the number of indicated TCI states is 1, the UE may be configured to select the first TCI state of the two TCI states for receiving the PDSCH. The selection of the TCI state may be based on: a predetermined rule, explicit signaling received from the base station, implicit signaling received from the base station, and / or a time slot in which the PDSCH is received, etc.

[0153] When the PDSCH extends across a threshold duration (i.e., a first portion of the PDSCH is scheduled for reception before the threshold duration and a second portion of the PDSCH is scheduled for reception after the threshold duration), this selection may apply to the first portion and a different TCI state selection (e.g., based on a TCI state indication in the DCI) may be used for the second portion.

[0154] In some embodiments, when the PDSCH repeats in time, a first TCI state may be used to receive the first repetition and a second TCI state may be used to receive the second repetition.

[0155] The UE may receive the PDSCH using the selected one or more TCI states (1308). As part of the selection process, the UE may determine an ultra-reliable low-latency communication (URLLC) scheme. Therefore, receiving the PDSCH may be performed based on the determined URLLC scheme.

[0156] Exemplary embodiments

[0157] The embodiments of the present disclosure may be implemented in any of a variety of forms. For example, some embodiments may be implemented as computer-implemented methods, computer-readable storage media, or computer systems. Other embodiments may be implemented using one or more custom-designed hardware devices such as ASICs. Other embodiments may be implemented using one or more programmable hardware elements such as FPGAs.

[0158] In some embodiments, a non-transitory computer-readable storage medium may be configured such that it stores program instructions and / or data, wherein if the program instructions are executed by a computer system, the computer system is caused to perform a method, such as any one of the method embodiments described herein, or any combination of the method embodiments described herein, or any subset of any method embodiments described herein, or any combination of such subsets.

[0159] In some embodiments, a device (e.g., a UE) may be configured to include a processor (or a group of processors) and a memory medium, wherein the memory medium stores program instructions, wherein the processor is configured to read and execute the program instructions from the memory medium, wherein the program instructions are executable to implement any of the various method implementations described herein (or any combination of the method implementations described herein, or any subset of any method implementations described herein, or any combination of such subsets). The device may be implemented in any of various forms.

[0160] The following paragraphs provide example implementations.

[0161] In some embodiments, an apparatus includes one or more processors, wherein the one or more processors are configured to enable a user equipment (UE): to connect to at least one base station; to determine that scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold duration; based on the PDCCH and the PDSCH being scheduled within the threshold duration, to select one or more transmission control indicator (TCI) states for receiving the PDSCH, regardless of a TCI state indicated in the PDCCH; and to receive the PDSCH using the selected one or more TCI states.

[0162] In some embodiments, selecting one or more TCI states is performed without decoding the PDCCH.

[0163] In some embodiments, the one or more processors are further configured to: determine an ultra-reliable low-latency communication (URLLC) scheme; wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

[0164] In some embodiments, one or more processors are further configured to: receive information indicating one or more TCI states within downlink control information (DCI); wherein the selection of the one or more TCI states is performed based on the number of indicated TCI states.

[0165] In some embodiments, the UE is configured to use two TCI states, wherein the number of TCI states indicated is 1, and wherein the one or more processors are further configured to: select a first TCI state of the two TCI states.

[0166] In some implementations, selecting the first TCI state is based on one or more of: a predetermined rule; explicit signaling received from the base station; implicit signaling received from the base station; or a time slot in which the PDSCH is received.

[0167] In some embodiments, the PDSCH extends across a threshold duration, wherein the selecting one or more TCI states is performed for a portion of the PDSCH received before a threshold, and wherein the one or more processors are further configured to: decode the PDCCH to determine an indicated TCI state; wherein the receiving the PDSCH is performed using the indicated TCI state for a portion of the PDSCH received after the threshold.

[0168] In some embodiments, the PDSCH is repeated in time, wherein a first TCI state is used to receive a first repetition, and wherein a second TCI state is used to receive a second repetition.

[0169] In some embodiments, a user equipment device (UE) includes: a wireless communication circuit; and one or more processors coupled to the wireless communication circuit, wherein the one or more processors are configured to enable the user equipment (UE): to connect to at least one base station; to determine that scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold time period; based on the PDCCH and the PDSCH being scheduled within the threshold time period, to select one or more transmission control indicator (TCI) states for receiving the PDSCH; and to receive the PDSCH using the selected one or more TCI states.

[0170] In some embodiments, selecting one or more TCI states is performed without decoding the PDCCH.

[0171] In some embodiments, the one or more processors are further configured to: determine an ultra-reliable low-latency communication (URLLC) scheme; wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

[0172] In some embodiments, one or more processors are further configured to: receive information indicating one or more TCI states within downlink control information (DCI); wherein the selection of the one or more TCI states is performed based on the number of indicated TCI states.

[0173] In some embodiments, the UE is configured to use two TCI states, wherein the number of TCI states indicated is 1, and wherein the one or more processors are further configured to: select a first TCI state of the two TCI states.

[0174] In some implementations, selecting the first TCI state is based on one or more of: a predetermined rule; explicit signaling received from the base station; implicit signaling received from the base station; or a time slot in which the PDSCH is received.

[0175] In some embodiments, the PDSCH extends across a threshold time period, wherein the selecting one or more TCI states is performed for a portion of the PDSCH received before a threshold, and wherein the one or more processors are further configured to: decode the PDCCH to determine an indicated TCI state; wherein the receiving the PDSCH is performed using the indicated TCI state for a portion of the PDSCH received after the threshold.

[0176] In some embodiments, the PDSCH is repeated in time, wherein a first TCI state is used to receive a first repetition, and wherein a second TCI state is used to receive a second repetition.

[0177] In some embodiments, a method for operating a user equipment (UE) includes:

[0178] By a UE: connecting to at least one base station; determining that scheduled reception of a physical downlink shared channel (PDSCH) is within a threshold time period after scheduled reception of a physical downlink control channel (PDCCH); based on the scheduled reception of the PDSCH being within the threshold time period after the scheduled reception of the PDCCH, selecting one or more transmission control indicator (TCI) states for receiving the PDSCH regardless of a TCI state indicated in the PDCCH, wherein the one or more TCI states are different from the TCI state indicated in the PDCCH; and receiving the PDSCH using the selected one or more TCI states.

[0179] In some embodiments, the method further includes: determining an ultra-reliable low-latency communication (URLLC) scheme; wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

[0180] In some embodiments, the method further includes: receiving information indicating one or more TCI states within downlink control information (DCI); wherein the selecting of the one or more TCI states is performed based on the number of indicated TCI states.

[0181] In some embodiments, the PDSCH is repeated in time, wherein a first TCI state is used to receive a first repetition, and wherein a second TCI state is used to receive a second repetition.

[0182] In some embodiments, a device includes: an antenna; a radio component coupled to the antenna; and a processing element coupled to the radio component. The device can be configured to implement any of the above method embodiments.

[0183] In some embodiments, the memory medium may store program instructions that, when executed, cause the device to implement any one of the above method embodiments.

[0184] In some embodiments, an apparatus includes: at least one processor (e.g., in communication with a memory) configured to implement any of the above method embodiments.

[0185] In some embodiments, a method includes any act or combination of acts as substantially described herein in the detailed description and claims.

[0186] In some embodiments, a method is performed as substantially described herein with reference to each or any combination of the figures contained herein, with reference to each or any combination of the paragraphs in the specific embodiments, with reference to each or any combination of the figures and / or the specific embodiments, or with reference to each or any combination of the claims.

[0187] In some embodiments, a wireless device is configured to perform any action or combination of actions as substantially described herein in the detailed description, drawings, and / or claims.

[0188] In some embodiments, a wireless device includes any component or combination of components as described herein in the detailed description and / or figures as included in a wireless device.

[0189] In some embodiments, a non-transitory computer-readable medium may store instructions that, when executed, cause performance of any act or combination of acts as substantially described herein in the detailed description and / or figures.

[0190] In some embodiments, an integrated circuit is configured to perform any act or combination of acts as substantially described herein in the detailed description and / or figures.

[0191] In some embodiments, a mobile station is configured to perform any act or combination of acts as substantially described herein in the detailed description and / or figures.

[0192] In some embodiments, a mobile station includes any component or combination of components as described herein in the detailed description and / or figures as included in a mobile station.

[0193] In some embodiments, a mobile device is configured to perform any action or combination of actions as substantially described herein in the detailed description and / or figures.

[0194] In some embodiments, a mobile device includes any component or combination of components as described herein in the detailed description and / or figures as included in a mobile device.

[0195] In some embodiments, a network node is configured to perform any action or combination of actions as substantially described herein in the detailed description and / or figures.

[0196] In some embodiments, a network node includes any component or combination of components as described herein in the detailed description and / or figures as included in a mobile device.

[0197] In some embodiments, a base station is configured to perform any action or combination of actions as substantially described herein in the detailed description and / or figures.

[0198] In some embodiments, a base station includes any component or combination of components as described herein in the detailed description and / or figures as included in a mobile device.

[0199] In some embodiments, a 5G NR network node or base station is configured to perform any action or combination of actions as substantially described herein in the detailed description and / or figures.

[0200] In some embodiments, a 5G NR network node or base station includes any components or combination of components as described herein in the detailed description and / or figures as included in a mobile device.

[0201] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of the authorized use should be clearly stated to users.

[0202] By interpreting each message / signal X received by a user equipment (UE) in the downlink as a message / signal X transmitted by the base station, and interpreting each message / signal Y transmitted by the UE in the uplink as a message / signal Y received by the base station, any of the methods for operating a UE described herein may become the basis for the corresponding method for operating a base station.

[0203] Although the above embodiments have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to encompass all such variations and modifications.

Claims

1. An electronic device, comprising: A processor configured to, when executing instructions stored in the memory, perform operations comprising: connecting to at least one base station; determining that scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold duration; selecting one or more TCI states for receiving the PDSCH regardless of a TCI state indicated in the PDCCH based on the PDCCH and the PDSCH being scheduled within the threshold duration and supporting a default PDSCH quasi co-location (QCL) based on multiple transmission control indicators (multi-TCI), wherein the selected one or more TCI states correspond to a lowest TCI code point including two TCI states; and The PDSCH is received using the selected one or more TCI states, wherein the PDSCH is repeated in time, wherein a first TCI state among the selected one or more TCI states is used to receive a first repetition of the PDSCH within a threshold duration, and wherein a second TCI state among the selected one or more TCI states is used to receive a second repetition of the PDSCH within a threshold duration.

2. The electronic device of claim 1, wherein the selecting the one or more TCI states is performed without decoding the PDCCH.

3. The electronic device according to claim 1, wherein the operation further comprises: Identify the Ultra-Reliable Low-Latency Communication (URLLC) solution; Wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

4. The electronic device according to claim 1, wherein the operation further comprises: receiving information indicating one or more TCI states within downlink control information (DCI); Wherein said selecting said one or more TCI states is performed based on the indicated number of TCI states.

5. The electronic device of claim 1 , wherein the PDSCH extends across the threshold duration, wherein the selecting the one or more TCI states is performed for a portion of the PDSCH received before the threshold, and wherein the operations further comprise: decoding the PDCCH to determine an indicated TCI state; Wherein the receiving of the PDSCH is performed for a portion of the PDSCH received after the threshold using the indicated TCI state.

6. A storage medium storing program instructions, the program instructions being executable by a processor to cause a user equipment device (UE): connecting to at least one base station; determining that scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) is within a threshold time period; Based on the PDCCH and the PDSCH being scheduled within the threshold time period and supporting a default PDSCH quasi co-location (QCL) based on multiple transmission control indicators (multi-TCI), selecting one or more TCI states for receiving the PDSCH, wherein the selected one or more TCI states correspond to a lowest TCI code point including two TCI states; and The PDSCH is received using the selected one or more TCI states, wherein the PDSCH is repeated in time, wherein a first TCI state among the selected one or more TCI states is used to receive a first repetition of the PDSCH within a threshold duration, and wherein a second TCI state among the selected one or more TCI states is used to receive a second repetition of the PDSCH within a threshold duration.

7. The storage medium of claim 6, wherein the selecting the one or more TCI states is performed without decoding the PDCCH.

8. The storage medium of claim 6, wherein the program instructions are further executable to: Identify the Ultra-Reliable Low-Latency Communication (URLLC) solution; Wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

9. The storage medium of claim 6, wherein the program instructions are further executable to: receiving information indicating one or more TCI states within downlink control information (DCI); Wherein said selecting said one or more TCI states is performed based on the indicated number of TCI states.

10. The storage medium of claim 6, wherein the PDSCH extends across the threshold time period, wherein the selecting the one or more TCI states is performed for a portion of the PDSCH received prior to the threshold, and wherein the program instructions are further executable to: decoding the PDCCH to determine an indicated TCI state; Wherein the receiving of the PDSCH is performed for a portion of the PDSCH received after the threshold using the indicated TCI state.

11. A method for operating a user equipment (UE), comprising: By the UE: connecting to at least one base station; determining that scheduled reception of a physical downlink shared channel (PDSCH) is within a threshold time period after scheduled reception of a physical downlink control channel (PDCCH); selecting one or more TCI states for receiving the PDSCH regardless of a TCI state indicated in the PDCCH based on the scheduled reception of the PDSCH being within the threshold time period after the scheduled reception of the PDCCH and supporting a default PDSCH quasi-colocation (QCL) based on a multiple transmission control indicator (multi-TCI), wherein the one or more TCI states are different from the TCI state indicated in the PDCCH, wherein the selected one or more TCI states correspond to a lowest TCI code point including two TCI states; and The PDSCH is received using the selected one or more TCI states, wherein the PDSCH is repeated in time, wherein a first TCI state among the selected one or more TCI states is used to receive a first repetition of the PDSCH within a threshold duration, and wherein a second TCI state among the selected one or more TCI states is used to receive a second repetition of the PDSCH within a threshold duration.

12. The method according to claim 11, further comprising: Identify the Ultra-Reliable Low-Latency Communication (URLLC) solution; Wherein the receiving of the PDSCH is performed based on the determined URLLC scheme.

13. The method according to claim 11, further comprising: receiving information indicating one or more TCI states within downlink control information (DCI); Wherein said selecting said one or more TCI states is performed based on the indicated number of TCI states.

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