Method, computer readable medium and user equipment for determining physical cell identity

Abstract

Aspects of the present disclosure include methods, apparatus, and computer-readable media for receiving layer 1 signaling or layer 2 signaling indicating a subset of multiple physical cell identifiers (PCIs) associated with multiple service cells in a network, establishing multiple communication channels with one or more transmit-receive points (TRPs), wherein each of the one or more TRPs includes a corresponding PCI from a plurality of PCIs, and determining one or more PCIs from a plurality of PCIs to be used as one or more default input cell IDs associated with a plurality of physical processes when no explicitly configured input identifiers (IDs) are signaled to a UE associated with the plurality of physical processes.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of U.S. Provisional Application No. 63 / 014,041, filed on April 22, 2020, and entitled “Method and Apparatus for Determining a Physical Cell Identifier,” and U.S. Patent Application No. 17 / 235,728, filed on April 20, 2021, and entitled “Method and Apparatus for Determining a Physical Cell Identifier,” the contents of which are incorporated herein by reference in their entirety. Background Art

[0003] Aspects of the present disclosure relate generally to wireless communications and, more particularly, to apparatus and methods for determining a physical cell identity (PCI) during wireless communications.

[0004] Wireless communication networks are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, or even global level. For example, the fifth generation (5G) wireless communication technology, which may be referred to as New Radio (NR), is envisioned to expand and support diverse usage scenarios and applications relative to current mobile network generations. In one aspect, 5G communication technology may include: enhanced mobile broadband for human-centric use cases for accessing multimedia content, services, and data; ultra-reliable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine-type communications that may allow for very large numbers of connected devices and the transmission of relatively small amounts of non-delay sensitive information. However, as the demand for mobile broadband access continues to grow, further improvements in NR communication technology and other aspects may be needed.

[0006] In a wireless communication network, one or more base stations (also referred to as transmit-receive points (TRPs)) may transmit information to and / or receive information from a user equipment (UE) via one or more communication channels. One or more BSs and UEs may use a physical cell identity (PCI) during a communication session for bit scrambling, signal generation, or other tasks associated with wireless communication. However, when multiple TRPs are used to communicate with a UE, it is unclear which PCI to use. Therefore, improvements may be needed. Summary of the invention

[0007] A simplified summary of one or more aspects is presented below to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects, and is neither intended to identify key or important elements of all aspects, nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0008] Aspects of the present disclosure include a method for: receiving layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, establishing multiple communication channels with the selected subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from a plurality of PCIs, and when no explicitly configured input identifier (ID) is signaled to a UE associated with the plurality of physical processes, determining one or more PCIs from the plurality of PCIs to be used as one or more default input cell IDs associated with the plurality of physical processes.

[0009] Other aspects of the present disclosure include a user equipment (UE) having a memory including instructions, a transceiver, and one or more processors operably coupled to the memory and the transceiver, the one or more processors configured to execute the instructions in the memory to: receive layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; establish multiple communication channels with a subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from the multiple PCIs; and, when no explicitly configured input identifier (ID) is signaled to the UE associated with multiple physical processes, determine one or more of the multiple PCIs to be used as one or more default input cell IDs associated with the multiple physical processes.

[0010] One aspect of the present disclosure includes a UE comprising: a component for receiving layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; a component for establishing multiple communication channels with a subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from a plurality of PCIs; and a component for determining one or more PCIs from a plurality of PCIs to be used as one or more default input cell IDs associated with the plurality of physical processes when no explicitly configured input identifier (ID) is signaled to the UE associated with the plurality of physical processes.

[0011] Some aspects of the present disclosure include a non-transitory computer-readable medium having instructions stored therein, which, when executed by one or more processors of a UE, causes the one or more processors to: receive layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; establish multiple communication channels with the subset of the multiple TRPs, wherein each TRP includes a corresponding PCI among the multiple PCIs; and when no explicitly configured input identifier (ID) is signaled to the UE associated with multiple physical processes, determine one or more of the multiple PCIs to be used as one or more default input cell IDs associated with the multiple physical processes.

[0012] Aspects of the present disclosure include methods for: transmitting layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and the selected subset of the plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0013] Other aspects of the present disclosure include a (base station) BS having a memory including instructions, a transceiver, and one or more processors operably coupled to the memory and the transceiver, the one or more processors being configured to execute the instructions in the memory to: transmit layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establish a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of a plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0014] One aspect of the present disclosure includes a BS, comprising: a component for transmitting layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmission-reception points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and a component for establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and the selected subset of multiple TRPs, each TRP corresponding to a PCI of the multiple PCIs.

[0015] Some aspects of the present disclosure include a non-transitory computer-readable medium having instructions stored therein, which, when executed by one or more processors of a BS, cause the one or more processors to: transmit layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establish a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of a plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0016] To accomplish the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosed aspects will be described below in conjunction with the accompanying drawings, which are provided to illustrate rather than limit the disclosed aspects, wherein like reference numerals represent like elements, and in the accompanying drawings:

[0018] Figure 1 is a diagram illustrating an example of a wireless communication system and access network according to aspects of the present disclosure;

[0019] Figure 2 is a schematic diagram of an example of a user equipment according to aspects of the present disclosure;

[0020] Figure 3is a schematic diagram of an example of a base station according to aspects of the present disclosure;

[0021] Figure 4 is a schematic diagram of a first example of a wireless communication network having multiple cells for communicating with a UE according to aspects of the present disclosure;

[0022] Figure 5 is a schematic diagram of a second example of a wireless communication network having multiple cells for communicating with a UE according to aspects of the present disclosure;

[0023] Figure 6 is a process flow diagram of an example of a method of determining PCI by a UE according to aspects of the present disclosure; and

[0024] Figure 7 is a process flow diagram of an example of a method performed by a BS for transmitting an indication of a new PCI according to aspects of the present disclosure. DETAILED DESCRIPTION

[0025] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some cases, in order to avoid obscuring these concepts, well-known structures and components are shown in block diagram form.

[0026] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0027] By way of example, an element or any part of an element or any combination of elements may be implemented as a "processing system" including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gating logic, discrete hardware circuits, and other suitable hardware configured to perform various functions described throughout this disclosure. One or more processors in a processing system may execute software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description languages, or other.

[0028] Therefore, in one or more example embodiments, the described functions may be implemented in hardware, software, or any combination thereof. If implemented in software, these functions may be stored on a computer-readable medium or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. Storage media may be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of computer-readable media of the above types, or any other media that may be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.

[0029] In one implementation, a serving cell may include one or more base stations (BSs) (e.g., transmit-receive points (TRPs)) for transmitting information to and / or receiving information from a user equipment (UE). A serving cell may have a physical cell identity (PCI) that is used by the TRP and / or the UE for bit scrambling (e.g., physical broadcast channel (PBCH), physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), etc.), time and / or frequency hopping pattern generation, demodulation reference signal sequence (DMRS) generation, and / or control resource set (CORESET) mapping.

[0030] For example, for PUSCH / PDSCH / PDCCH / PUCCH formats 2, 3, and 4, if no scrambling ID is configured, the bits before modulation may be scrambled by PCI. If no corresponding determination ID is configured, the time / frequency hopping pattern of the sequence attributes of the sequence carrying information / DMRS in PUCCH formats 0, 1, 3, and 4 may be determined based on PCI. The sequence attributes may include sequence group, sequence number, and cyclic shift. When transform precoding is disabled or enabled, if no corresponding determination ID is configured, the DMRS sequence for PUSCH / PDSCH / PDCCH may be determined based on PCI. For the interleaved control channel element (CCE) to resource element group (REG) mapping of CORESET, the interleaving pattern may be a function of the parameter n_shift, which may be PCI if the n_shift configured by the radio resource control (RRC) is not provided. In one example, for CORESET 0 configured by the ControlResourceSetZero information element, n_shift may be equal to PCI. For PBCH, the bits before modulation may be scrambled by PCI, and the DMRS may be determined based on PCI.

[0031] In some cases, L1 / L2-based inter-cell mobility can be implemented in a communication network. Each serving cell can have multiple TRPs, which can be located at different locations, and each TRP can have a different PCI, for example, carried by a synchronization signal block (SSB) transmitted from the TRP. At a given time, the UE can be served by a subset of serving cells (e.g., the PCI of a subset of serving cells), and the subset of serving cells can change from time to time via L1 or L2 signaling (such as downlink control indicator (DCI) and / or media access control (MAC) control element (CE)). In some cases, the UE can be configured with a group of serving cells, each serving cell has a single PCI, and the UE can be configured to measure L1 metrics, such as L1-RSRP / SINR / RSRQ, for each serving cell in the group. At each time, the UE can be served by a subset of the serving cell group, which can change from time to time via L1 or L2 signaling. The BS (e.g., gNB) may determine the subset based on L1 reports from the UE to some selected serving cells or to an anchor serving cell in the group.

[0032] In some cases, the subset of selected PCI(s) serving the UE may change rapidly via L1 / L2 signaling.For physical (PHY) processing with PCI as input, when no explicit input ID is signaled to the UE, it may be determined that the PCI(s) are used as the default input.

[0033] In some aspects of the present disclosure, the network (BS and / or UE) may use the following options to determine the (multiple) input PCIs for PHY processing in L1 / L2 inter-cell mobility, where the subset of the selected (multiple) PCIs serving the UE may be changed quickly via L1 / L2 signaling. In a first example, one PCI may be used as input regardless of which subset of PCIs is selected to serve the UE. The PCI may be associated with the entire cell group and may or may not be a PCI of a specific cell in the group. The PCI may be explicitly signaled to the UE or implicitly determined by a rule. In one example, the PCI may be an anchor cell in the group, which is configured for broadcast, random access, measurement reporting or other control / management purposes. In another example, this PCI may be the lowest / highest PCI in the group. In another example, the PCI may be one of the selected PCIs. The PCI may be explicitly signaled to the UE or implicitly determined by a rule, such as the lowest / highest PCI in the subset. In another example, a targeted PCI for PHY processing may be used. If a PHY process is associated with a targeted PCI, eg for UE Tx / Rx to / from a cell, the corresponding PCI is used as input.

[0034] In certain aspects, the PHY processing may include payload scrambling for downlink (DL) and / or uplink (UL) control / data channels, DMRS sequence determination for DL / UL control / data channels, time / frequency hopping patterns for sequence properties of information / DMRS sequences for DL / UL control / data channels, interleaved control channel elements (CCE) to resource element groups (REG) mapping patterns for CORESETs, and / or sequence determination for DL / UL reference signals for measurement (e.g., channel state indicator (CSI) reference signals (RS), sounding reference signals (SRS), positioning reference signals (PRS), etc.). When no explicit input ID is signaled to the UE, the determined PCI is at least used as a default input.

[0035] Figure 11 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes at least one BS 105, a UE 110, an evolved packet core (EPC) 160, and a 5G core (5GC) 190. The BS 105 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). The macro cell includes a base station. The small cell includes a femto cell, a pico cell, and a micro cell. In one implementation, the UE 110 may include a communication component 222 and / or a determination component 224. The communication component 222 and / or the modem 220 of the UE 110 may be configured to communicate with the BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks. The UE 110 may include a determination component 224 for determining a PCI for PHY processing. In some implementations, the BS 105 may include a communication component 322 configured to communicate with the UE 110.

[0036] The BS 105 configured for 4G Long Term Evolution (LTE) (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a backhaul link interface 132 (e.g., S1, X2, Internet Protocol (IP), or flex interface). The BS 105 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) can interface with the 5GC 190 via a backhaul link interface 134 (e.g., S1, X2, Internet Protocol (IP), or flex interface). Among other functions, BS 105 can perform one or more of the following functions: transfer of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and device tracking, RAN information management (RIM), paging, positioning and delivery of warning messages. BS 105 can communicate with each other directly or indirectly (e.g., through EPC 160 or 5GC 190) via a backhaul link interface 134. The backhaul links 132, 134 can be wired or wireless.

[0037] BS 105 can communicate wirelessly with UE 110. Each BS 105 can provide communication coverage for a respective geographic coverage area 130. There may be overlapping geographic coverage areas 130. For example, a small cell 105' may have a coverage area 130' that overlaps with the coverage area 130 of one or more macro BSs 105. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 120 between BS 105 and UE 110 may include an uplink (UL) (also referred to as a reverse link) transmission from UE 110 to BS 105 and / or a downlink (DL) (also referred to as a forward link) transmission from BS 105 to UE 110. The communication link 120 may use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link may be through one or more carriers. BS 105 / UE 110 can use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth per carrier allocated in carrier aggregation, for a total of up to Yx MHz (x component carriers) for transmission in each direction. These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​than for UL). Component carriers may include a primary component carrier and one or more secondary component carriers. A primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell).

[0038] Certain UEs 110 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through various wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0039] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 in the 5 GHz unlicensed spectrum via a communication link 154. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether the channel is available.

[0040] The small cell 105' can operate in a licensed spectrum and / or an unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 105' can adopt NR and use the same 5 GHz unlicensed spectrum used by the Wi-Fi AP 150. The small cell 105' adopting NR in the unlicensed spectrum can improve the coverage of the access network and / or increase the capacity of the access network.

[0041] BS 105, whether a small cell 105' or a large cell (e.g., a macro base station), can include an eNB, a gNodeB (gNB), or other types of base stations. Some base stations, such as gNB 180, can operate in the traditional sub-6 GHz spectrum, in millimeter wave (mmW) frequencies, and / or in near mmW frequencies to communicate with UE 110. When gNB 180 operates in mmW or near mmW frequencies, gNB 180 can be referred to as a mmW base station. Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum. EHF ranges from 30 GHz to 300 GHz with wavelengths between 1 mm and 10 mm. Radio waves in the band can be referred to as millimeter waves. Near mmW can extend down to frequencies of 3 GHz with wavelengths of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz and is also known as centimeter waves. Communications using mmW / near mmW radio frequency bands have extremely high path losses and short distances. The mmW base station 180 may utilize beamforming 182 with the UE 110 to compensate for path loss and short range.

[0042] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 110 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transferred through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a packet switched (PS) streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS Gateway 168 may be used to distribute MBMS services to BSs 105 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts specific services, and may be responsible for session management (start / stop) and collecting charging information related to eMBMS.

[0043] 5GC 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with unified data management (UDM) 196. AMF 192 is a control node that handles signaling between UE 110 and 5GC 190. Typically, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transferred through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, intranet, IP multimedia subsystem (IMS), PS streaming services, and / or other IP services.

[0044] BS 105 may also be referred to as gNB, Node B, evolved Node B (eNB), access point, base transceiver station, radio base station, access point, access node, radio transceiver, NodeB, eNodeB (eNB), gNB, Home NodeB, Home eNodeB, relay, transceiver function, basic service set (BSS), extended service set (ESS), transmission reception point (TRP), or some other suitable term. BS 105 provides an access point to EPC 160 or 5GC 190 for UE 110. Examples of UE 110 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similar functional devices. Some UEs 110 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.) UE 110 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0045] refer to Figure 2 , one example of an implementation of UE 110 may include a modem 220 having a communication component 222 and / or a determination component 224. The communication component 222 and / or the modem 220 of UE 110 may be configured to communicate with BS 105 via a cellular network, a Wi-Fi network, or other wireless and wired networks. UE 110 may include a determination component 224 for determining a PCI for PHY processing.

[0046] In some implementations, the UE 110 may include various components, including components such as one or more processors 212 and memory 216 and transceiver 202 that communicate via one or more buses 244, which may operate in conjunction with a modem 220 and a communication component 222 to implement one or more functions described herein related to communicating with the BS 105. In addition, the one or more processors 212, the modem 220, the memory 216, the transceiver 202, the RF front end 288, and the one or more antennas 265 may be configured to support voice and / or data calls (simultaneously or not) in one or more radio access technologies. The one or more antennas 265 may include one or more antennas, antenna elements, and / or antenna arrays.

[0047] In one aspect, the one or more processors 212 may include a modem 220 using one or more modem processors. Various functions associated with the communication component 222 and / or the determination component 224 may be included in the modem 220 and / or the processor 212, and in one aspect, may be performed by a single processor, while in other aspects, different functions in the functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with the transceiver 202. In addition, the modem 220 may configure the UE 110 as well as the processor 212. In other aspects, some features of the one or more processors 212 and / or the modem 220 associated with the communication component 222 and / or the determination component 224 may be performed by the transceiver 202.

[0048] In addition, the memory 216 can be configured to store data used herein and / or applications 275 executed by at least one processor 212 or local versions of the communication component 222, the determination component 224, and / or one or more subcomponents of the communication component 222 and / or the determination component 224. The memory 216 may include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM), read-only memory (ROM), tape, disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 110 is operating at least one processor 212 to execute the communication component 222, the determination component 224, and / or one or more subcomponents, the memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 222, the determination component 224, and / or one or more subcomponents and / or data associated therewith.

[0049] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and / or software code executable by a processor to receive data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 206 may be, for example, an RF receiving device. In one aspect, the receiver 206 may receive signals transmitted by at least one BS 105. The transmitter 208 may include hardware, firmware, and / or software code executable by a processor to transmit data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.

[0050] In addition, in one aspect, the UE 110 may include an RF front end 288 that may operate in communication with the one or more antennas 265 and the transceiver 202 to receive and transmit radio transmissions, such as wireless communications transmitted by at least one BS 105 or wireless transmissions transmitted by the UE 110. The RF front end 288 may be coupled to the one or more antennas 265 and may include one or more low noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.

[0051] In one aspect, the LNA 290 can amplify the received signal at a desired output level. In one aspect, each LNA 290 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and a specified gain value based on the desired gain value for a particular application.

[0052] In addition, for example, the RF front end 288 can use one or more PAs 298 to amplify the signal of the RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a specific PA 298 and a specified gain value based on the desired gain value for a particular application.

[0053] In addition, for example, the RF front end 288 can use one or more filters 296 to filter the received signal to obtain an input RF signal. Similarly, in one aspect, for example, a corresponding filter 296 can be used to filter the output from the corresponding PA 298 to produce an output signal for transmission. In one aspect, each filter 296 can be coupled to a specific LNA 290 and / or PA 298. In one aspect, based on the configuration specified by the transceiver 202 and / or the processor 212, the RF front end 288 can use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and / or PA 298.

[0054] As such, the transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via the RF front end 288. In one aspect, the transceiver may be tuned to operate at a specified frequency so that the UE 110 may communicate with, for example, one or more BSs 105 or one or more cells associated with the one or more BSs 105. In one aspect, the modem 220 may configure the transceiver 202 to operate at a specified frequency and power level based on, for example, the UE configuration of the UE 110 and the communication protocol used by the modem 220.

[0055] In one aspect, modem 220 can be a multi-band-multi-mode modem that can process digital data and communicate with transceiver 202 so that digital data is sent and received using transceiver 202. In one aspect, modem 220 can be multi-band and can be configured to support multiple frequency bands for a specific communication protocol. In one aspect, modem 220 can be multi-mode and can be configured to support multiple operating networks and communication protocols. In one aspect, modem 220 can control one or more components (e.g., RF front end 288, transceiver 202) of UE 110 to achieve transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, the modem configuration can be based on the mode of the modem and the frequency band used. On the other hand, the modem configuration can be based on UE configuration information associated with UE 110 provided by the network.

[0056] refer to Figure 3 , one example of an implementation of BS 105 may include a modem 320 having a communication component 322 configured to transmit data. The communication component 322 and / or modem 320 of BS 105 may be configured to communicate with UE 110 via a cellular network, a Wi-Fi network, or other wireless and wired networks.

[0057] In some implementations, the BS 105 may include various components, including components such as one or more processors 312 and memory 316 and transceiver 302 that communicate via one or more buses 344, which may operate in conjunction with a modem 320 and a communication component 322 to implement one or more functions described herein related to communicating with the UE 110. In addition, the one or more processors 312, modem 320, memory 316, transceiver 302, RF front end 388, and one or more antennas 365 may be configured to support voice and / or data calls (simultaneously or not) in one or more radio access technologies.

[0058] In one aspect, the one or more processors 312 may include a modem 320 using one or more modem processors. Various functions associated with the communication component 322 may be included in the modem 320 and / or the processor 312, and in one aspect, may be performed by a single processor, while in other aspects, different functions in the functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 312 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with the transceiver 302. In addition, the modem 320 may configure the BS 105 and the processor 312. In other aspects, some features of the one or more processors 312 and / or the modem 320 associated with the communication component 322 may be performed by the transceiver 302.

[0059] In addition, the memory 316 can be configured to store data used herein and / or local versions of the applications 375 or the communication component 322, the determination component, and / or one or more subcomponents of the communication component 322 or the determination component executed by the at least one processor 312. The memory 316 may include any type of computer-readable medium usable by a computer or the at least one processor 312, such as a random access memory (RAM), a read-only memory (ROM), a tape, a disk, an optical disk, a volatile memory, a non-volatile memory, and any combination thereof. In one aspect, for example, when the BS 105 is operating at least one processor 312 to execute the communication component 322, the determination component, and / or one or more subcomponents thereof, the memory 316 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes defining the communication component 322, the determination component, and / or one or more subcomponents and / or data associated therewith.

[0060] The transceiver 302 may include at least one receiver 306 and at least one transmitter 308. The at least one receiver 306 may include hardware, firmware, and / or software code executable by a processor to receive data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 306 may be, for example, an RF receiving device. In one aspect, the receiver 306 may receive a signal transmitted by the UE 110. The transmitter 308 may include hardware, firmware, and / or software code executable by a processor to transmit data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 308 may include, but are not limited to, an RF transmitter.

[0061] In addition, in one aspect, the BS 105 may include an RF front end 388 that may operate in communication with the one or more antennas 365 and the transceiver 302 to receive and transmit radio transmissions, such as wireless communications transmitted by other BSs 105 or wireless transmissions transmitted by the UE 110. The RF front end 388 may be coupled to the one or more antennas 365 and may include one or more low noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.

[0062] In one aspect, the LNA 390 can amplify the received signal at a desired output level. In one aspect, each LNA 390 can have a specified minimum and maximum gain value. In one aspect, the RF front end 388 can use one or more switches 392 to select a particular LNA 390 and a specified gain value based on the desired gain value for a particular application.

[0063] In addition, for example, the RF front end 388 can use one or more PAs 398 to amplify the signal of the RF output at a desired output power level. In one aspect, each PA 398 can have a specified minimum and maximum gain value. In one aspect, the RF front end 388 can use one or more switches 392 to select a specific PA 398 and a specified gain value based on the desired gain value for a particular application.

[0064] In addition, for example, the RF front end 388 can use one or more filters 396 to filter the received signal to obtain an input RF signal. Similarly, in one aspect, for example, a corresponding filter 396 can be used to filter the output from the corresponding PA 398 to produce an output signal for transmission. In one aspect, each filter 396 can be coupled to a specific LNA 390 and / or PA 398. In one aspect, based on the configuration specified by the transceiver 302 and / or the processor 312, the RF front end 388 can use one or more switches 392 to select a transmit or receive path using a specified filter 396, LNA 390, and / or PA 398.

[0065] As such, the transceiver 302 may be configured to transmit and receive wireless signals through one or more antennas 365 via the RF front end 388. In one aspect, the transceiver may be tuned to operate at a specified frequency so that the BS 105 may communicate with, for example, a UE 110 or one or more cells associated with one or more BSs 105. In one aspect, the modem 320 may configure the transceiver 302 to operate at a specified frequency and power level based on, for example, the base station configuration of the BS 105 and the communication protocol used by the modem 320.

[0066] In one aspect, modem 320 can be a multi-band multi-mode modem that can process digital data and communicate with transceiver 302 so that digital data is sent and received using transceiver 302. In one aspect, modem 320 can be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, modem 320 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 320 can control one or more components (e.g., RF front end 388, transceiver 302) of BS 105 to achieve transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, modem configuration can be based on the mode of the modem and the frequency band used. On the other hand, modem configuration can be based on the base station configuration associated with BS105.

[0067] Go to Figure 4In one implementation, the communication network 400 may operate in a first mode, wherein the UE 110 may be configured with multiple TRPs (e.g., BSs, gNBs, eNBs, etc.). The multiple TRPs in the communication network 400 may be in the same serving cell, and / or in the same or different locations. The communication network 400 may include two or more BSs 105, each BS having a coverage area 130. For example, the communication network 400 may include a first BS 105a having a first coverage area 130a, a second BS 105b having a second coverage area 130b, a third BS 105c having a third coverage area 130c, and a fourth BS 105d having a fourth coverage area 130d. The communication network 400 may include the UE 110. The first BS 105a, the second BS 105b, the third BS 105c, and the fourth BS 105d may be in the serving cell 402. The first BS 105a, the second BS 105b, the third BS 105c, and the fourth BS 105d may be located at different locations. The first BS 105a may communicate with the UE 110 via the first wireless link 120a, the second BS 105b may communicate with the UE 110 via the second wireless link 120b, and so on. The first BS 105a, the second BS 105b, the third BS 105c, and the fourth BS 105d may have the following PCIs, respectively: PCI-1, PCI-2, PCI-3, PCI-4. BS105a-BS 105d may transmit the corresponding PCI to the UE 110 via one or more synchronization signal blocks.

[0068] During operation, in one implementation, a subset (i.e., some or all) of the first BS 105a, the second BS 105b, the third BS 105c, and the fourth BS 105d may serve the UE 110. The subset of TRPs may change rapidly. One or more TRPs (the first BS 105a, the second BS 105b, the third BS 105c, and / or the fourth BS 105d) may signal the UE 110 via a downlink control indicator (DCI) and / or a media access control (MAC) control element (CE) to serve the subset of TRPs of the UE 110. In some examples, the second BS 105b, the third BS 105c, and the fourth BS 105d may serve the UE 110.

[0069] In a first aspect, the PCI of any TRP in the cell 402 may be selected for PHY processing. For example, one or more PCIs of the first BS 105a, the second BS 105b, the third BS 105c, and / or the fourth BS 105d may be used as a default input cell identifier (ID) for PHY processing, such as PCI-1. In some examples, if the corresponding ID is not configured, PCI-1 may be used as a default input cell ID for bit scrambling, sequence determination, and CCE to REG interleaving pattern determination. PCI-1 may be associated with the entire cell group. PCI-1 may or may not be the PCI of a specific cell in the cell group. PCI-1 may be signaled to the UE 110 by one or more of the second BS 105b, the third BS 105c, and the fourth BS 105d (serving TRP), or may be implicitly determined by one or more rules as described below.

[0070] In an alternative aspect, the PCI selected for PHY processing can be associated with an anchor cell (eg, serving cell 402) configured for broadcast, random access, receiving / analyzing measurement reports, or other control / management purposes.

[0071] In another aspect, the PCI selected for the PHY process may be the lowest one (eg, PCI-1) or the highest one (eg, PCI-4) in the group. Other rules may be used to determine the PCI for the PHY process.

[0072] In a second aspect, the PCI of any service TRP in the cell 402 may be selected for PHY processing. For example, one or more PCIs of the second BS 105b, the third BS 105c, and / or the fourth BS 105d may be used as a default input cell identifier (ID) for PHY processing, such as PCI-3. In some examples, if the corresponding ID is not configured, PCI-3 may be used as a default input cell ID for bit scrambling, sequence determination, and CCE to REG interleaving pattern determination. PCI-3 may be associated with the entire cell group. PCI-3 may or may not be the PCI of a specific cell in the cell group. PCI-3 may be signaled to the UE 110 by one or more of the second BS 105b, the third BS 105c, and the fourth BS 105d (service TRP), or may be implicitly determined by one or more rules.

[0073] In alternative aspects, the PCI selected for the PHY process may be the lowest one (eg, PCI-2) or the highest one (eg, PCI-4) in the group. Other rules may be used to determine the PCI for a PHY process.

[0074] In a third aspect, PCI associated with PHY processing may be used for PHY processing. For example, if the third BS 105c transmits PDSCH information to the UE 110 or receives PUSCH information from the UE 110, PCI-3 may be used for PHY processing (eg, bit scrambling before modulation).

[0075] Examples of PHY processing may include the following. For PUSCH, PDSCH, PDCCH and / or PUCCH formats 2, 3, 4, if no scrambling ID is configured, the bits before modulation may be scrambled by PCI. If the corresponding determination ID is not configured, the time / frequency hopping pattern of the sequence attributes of the sequence carrying information / DMRS in PUCCH formats 0, 1, 3, 4 may be determined by PCI. The sequence attributes may include sequence group, sequence number, and cyclic shift. When transform precoding is disabled or enabled, if the corresponding determination ID is not configured, the DMRS sequence of PUSCH, PDSCH and / or PDCCH may be determined based on PCI. For the interleaved CCE to REG mapping of CORESET, the interleaving pattern may be a function of the parameter n_shift, and if the n_shift configured by the radio resource control (RRC) is not provided, n_shift may be PCI. In one example, for CORESET 0 configured by the ControlResourceSetZero information element, n_shift may be equal to PCI. For PBCH, the bits before modulation may be scrambled by PCI, and the DMRS may be determined by PCI.

[0076] Go to Figure 5In one implementation, the communication network 500 may operate in the second mode, wherein the UE 110 may be configured with multiple serving cells, each serving cell having a single PCI. The communication network 500 may include a fifth BS 105e having a fifth coverage area 130e, a sixth BS 105f having a sixth coverage area 130f, a seventh BS 105g having a seventh coverage area 130h, and an eighth BS 105h having an eighth coverage area 130h. The communication network 500 may include the UE 110. The fifth BS 105e and the sixth BS 105f may be in the first cell 502, the seventh BS 105g may be in the second cell 504, and the eighth BS 105h may be in the third cell 506. The fifth BS 105e, the sixth BS 105f, the seventh BS 105g, and the eighth BS 105h may be located at different locations. The fifth BS 105e may communicate with the UE 110 via the first wireless link 120e, the sixth BS 105f may communicate with the UE 110 via the second wireless link 120f, etc. The fifth BS 105e, the sixth BS 105f, the seventh BS 105g, and the eighth BS 105h may have the following PCIs, respectively: PCI-5, PCI-5, PCI-6, PCI-7. BS 105e-BS 105h may transmit the corresponding PCI to the UE 110 via one or more synchronization signal blocks.

[0077] During operation, in one implementation, a subset (i.e., some or all) of the first cell 502, the second cell 504, and the third cell 506 may serve the UE 110. The subset of serving cells may change rapidly. One or more serving cells (e.g., a TRP within a serving cell) of the first cell 502, the second cell 504, and the third cell 506 may signal the subset of serving cells serving the UE 110 via a downlink control indicator (DCI) and / or a media access control (MAC) control element (CE) to the UE 110. In some examples, the first cell 502 and the third cell 506 may serve the UE 110.

[0078] In a first aspect, the PCI of any cell in the network 500 can be selected for PHY processing. For example, one or more PCIs of the first cell 502, the second cell 504, and / or the third cell 506 can be used as a default input cell identifier (ID) for PHY processing, such as PCI-6. In some examples, if the corresponding ID is not configured, PCI-6 can be used as a default input cell ID for bit scrambling, sequence determination, and CCE to REG interleaving pattern determination. PCI-6 can be associated with the entire cell group. PCI-6 may or may not be the PCI of a specific cell in the cell group. PCI-6 may be signaled to UE 110 by one or more of the first cell 502 and / or the third cell 506 (serving cell or serving TRP), or may be implicitly determined by one or more rules.

[0079] In an alternative aspect, the PCI selected for PHY processing can be associated with an anchor cell (eg, the first cell 502) configured for broadcast, random access, receiving / analyzing measurement reports, or other control / management purposes.

[0080] In another aspect, the PCI selected for the PHY process may be the lowest one (eg, PCI-5) or the highest one (eg, PCI-7) in the group. Other rules may be used to determine the PCI for the PHY process.

[0081] In a second aspect, the PCI of any serving cell (e.g., the first cell 502 and / or the third cell 506) can be selected for PHY processing. For example, one or more PCIs of the first cell 502 and the third cell 506 can be used as a default input cell identifier (ID) for PHY processing, such as PCI-7. In some examples, if the corresponding ID is not configured, PCI-7 can be used as a default input cell ID for bit scrambling, sequence determination, and CCE to REG interleaving pattern determination. PCI-7 can be associated with the entire cell group. PCI-7 may or may not be the PCI of a specific cell in the cell group. PCI-7 may be signaled to UE 110 by one or more of the first cell 502 and / or the third cell 506 (serving cell or serving TRP), or may be implicitly determined by one or more rules.

[0082] In alternative aspects, the PCI selected for the PHY process may be the lowest one (eg, PCI-5) or the highest one (eg, PCI-7) in the group. Other rules may be used to determine the PCI for a PHY process.

[0083] In a third aspect, PCI associated with PHY processing can be used for PHY processing. For example, if the first cell 502 transmits PDSCH information to the UE 110 or receives PUSCH information from the UE 110, PCI-5 can be used for PHY processing (eg, bit scrambling before modulation).

[0084] Examples of PHY processing may include the following. For PUSCH, PDSCH, PDCCH and / or PUCCH formats 2, 3, 4, if no scrambling ID is configured, the bits before modulation may be scrambled by PCI. If no corresponding determination ID is configured, the time / frequency hopping pattern of the sequence attributes of the sequence carrying information / DMRS in PUCCH formats 0, 1, 3, 4 may be determined by PCI. The sequence attributes may include sequence group, sequence number, and cyclic shift. When transform precoding is disabled or enabled, if no corresponding determination ID is configured, the DMRS sequence for PUSCH, PDSCH and / or PDCCH may be determined by PCI. For the interleaved control channel element (CCE) to resource element group (REG) mapping of a CORESET, the interleaving pattern may be a function of the parameter n_shift, and if no radio resource control (RRC) configured n_shift is provided, n_shift may be PCI. In one example, for CORESET 0 configured by the ControlResourceSetZero information element, n_shift may be equal to PCI. For PBCH, bits before modulation may be scrambled by PCI, and DMRS may be determined by PCI.

[0085] refer to Figure 6 , an example of method 600 for determining PCI for PHY processing can be performed by one or more of the processor 212, memory 216, application 275, modem 220, transceiver 202 and / or subcomponents thereof, RF front end 288 and / or subcomponents thereof, communication component 222 and / or determination component 224 of UE 110 in wireless communication network 100.

[0086] At block 605, the method 600 may receive layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in a network. For example, the communication component 222, the modem 220, and / or the processor 212 of the UE 110 may receive layer 1 signaling or layer 2 signaling, such as DCI and / or MAC-CE. The RF front end 288 may receive an electrical signal converted from an electromagnetic signal. The RF front end 288 may filter and / or amplify the electrical signal. The transceiver 302 or the receiver 306 may convert the electrical signal into L1 / L2 signaling and send the L1 / L2 signaling to the communication component 322.

[0087] In certain implementations, the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and / or subcomponents of the RF front end 288 may be configured to and / or may define components for receiving layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network.

[0088] At block 610, the method 600 may establish a plurality of communication channels with a subset of the plurality of TRPs, wherein each TRP includes a corresponding PCI from the plurality of PCIs. For example, the communication component 222, the modem 220, and / or the processor 212 of the UE 110 may establish a plurality of communication channels with one or more transmit-receive points (TRPs), as described above with respect to Figure 4 and Figure 5 described.

[0089] In certain implementations, the processor 212, the modem 220, the communication component 222, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and / or subcomponents of the RF front end 288 may be configured as and / or may define components for establishing multiple communication channels with a subset of multiple TRPs, where each TRP includes a corresponding PCI from a plurality of PCIs.

[0090] At block 615, when no explicitly configured input identification (ID) is signaled to the UE associated with the plurality of physical processes, the method 600 may determine one or more PCIs of the plurality of PCIs to use as one or more default input cell IDs associated with the plurality of physical processes. For example, the determining component 224, the modem 220, and / or the processor 212 of the UE 110 may determine one or more PCIs of the plurality of PCIs to use as one or more default input cell identifications (IDs), as described above with respect to Figure 4 and Figure 5 described.

[0091] In certain implementations, the processor 212, the modem 220, the determination component 224, the transceiver 202, the receiver 206, the transmitter 208, the RF front end 288, and / or subcomponents of the RF front end 288 may be configured to and / or may define components for determining one or more PCIs from a plurality of PCIs to be used as one or more default input cell IDs associated with the plurality of physical processes when an explicitly configured input identification (ID) is not signaled to the UE associated with the plurality of physical processes.

[0092] Alternatively or additionally, the method 600 may further include any of the above methods, wherein at least one of the layer 1 signaling or the layer 2 signaling includes downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0093] Alternatively or additionally, method 600 may further include any of the above methods, further including, if no scrambling ID is configured, using one or more PCIs to scramble multiple bits associated with uplink information, and transmitting the uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH).

[0094] Alternatively or additionally, method 600 may further include any of the above methods, wherein transmitting uplink information also includes transmitting the uplink information via at least a timing or a frequency hopping pattern based on sequence attributes of one or more PCIs in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4 if no determination ID is configured.

[0095] Alternatively or additionally, the method 600 may further include any one of the above methods, wherein the sequence attribute includes at least one of a sequence group, a sequence number, or a cyclic shift.

[0096] Alternatively or additionally, method 600 may further include any of the above methods, further comprising receiving downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel, and descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0097] Alternatively or additionally, method 600 may further include any of the above methods, further comprising: receiving downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel, and descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0098] Alternatively or additionally, the method 600 may further include any of the above methods, wherein receiving the downlink information further includes receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

[0099] Alternatively or additionally, method 600 may further include any of the above methods, wherein the mapping is a control channel element to resource element group mapping associated with the CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameter is one or more PCIs.

[0100] Alternatively or additionally, method 600 may further include any of the above methods, further including receiving one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH), a physical downlink control channel (PDDCH), or a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, one or more DMRS are generated based on one or more PCIs, and if a corresponding determination ID is not configured, one or more DMRS are demodulated based on one or more PCIs

[0101] Alternatively or additionally, method 600 may further include any of the above methods, further including: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRSs of a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, generating one or more DMRSs based on one or more PCIs.

[0102] Alternatively or additionally, method 600 may further include any of the above methods, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0103] Alternatively or additionally, method 600 may further include any of the above methods, further comprising receiving a corresponding synchronization signal block indicating a corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0104] Alternatively or additionally, method 600 may further include any of the above methods, further comprising receiving media access control (MAC)-control element (CE) signaling or downlink control information (DCI) signaling indicating a selected subset of multiple TRPs.

[0105] Alternatively or additionally, method 600 may further include any of the above methods, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0106] Alternatively or additionally, the method 600 may further include any of the above methods, further including measuring the L1 metric of each of a subset of the plurality of serving cells.

[0107] Alternatively or additionally, the method 600 may further include any one of the above methods, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0108] Alternatively or additionally, the method 600 may further include any of the above methods, further including receiving a medium access control (MAC)-control element (CE) signaling or a downlink control information (DCI) signaling indicating a subset of the plurality of serving cells.

[0109] Alternatively or additionally, method 600 may further include any of the above methods, wherein the one or more PCIs are associated with a selected subset of the plurality of TRPs of the network or a TRP other than the selected subset of the plurality of TRPs of the network.

[0110] Alternatively or additionally, the method 600 may further include any of the above methods, wherein determining the one or more PCIs further includes identifying the one or more PCIs received from the BS or identifying the one or more PCIs based on one or more rules.

[0111] Alternatively or additionally, method 600 may further include any of the above methods, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of the network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0112] Alternatively or additionally, method 600 may further include any of the above methods, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0113] Alternatively or additionally, the method 600 may further include any of the above methods, wherein determining the one or more PCIs further includes identifying the one or more PCIs received from the BS or identifying the one or more PCIs based on one or more rules.

[0114] Alternatively or additionally, the method 600 may further include any of the above methods, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0115] Alternatively or additionally, the method 600 may further include any of the above methods, wherein the one or more PCIs are process PCIs associated with a plurality of physical processes of the one or more PCIs.

[0116] refer to Figure 7 , an example of method 700 for transmitting L1 / L2 signaling can be performed by one or more of the processor 312, memory 316, application 375, modem 320, transceiver 302 and / or subcomponents thereof, RF front end 388 and / or subcomponents thereof, and / or communication component 322 of BS 105 in the wireless communication network 100.

[0117] At block 705, the method 700 may transmit layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in a network, wherein when no explicitly configured input identities (IDs) are signaled to a user equipment (UE) associated with the plurality of physical processes, one or more of the plurality of PCIs are configured to be used by the UE as one or more default input cell IDs associated with the plurality of physical processes. For example, the communication component 322, the modem 320, and / or the processor 312 of the BS 105 may transmit L1 / L2 signaling, such as described above with respect to Figure 4 and Figure 5 The communication component 322 may send L1 / L2 signaling to the transceiver 302 or the transmitter 308. The transceiver 302 or the transmitter 308 may convert the L1 / L2 signaling into an electrical signal and send it to the RF front end 388. The RF front end 388 may filter and / or amplify the electrical signal. The RF front end 388 may send the electrical signal as an electromagnetic signal via one or more antennas 365.

[0118] In certain implementations, the processor 312, the modem 320, the communication component 322, the transceiver 302, the receiver 306, the transmitter 308, the RF front end 388, and / or subcomponents of the RF front end 388 may be configured to and / or may define components for transmitting layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with the multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes.

[0119] At block 710, the method 700 may establish a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of a plurality of TRPs, each TRP corresponding to a PCI of a plurality of PCIs. For example, the communication component 322, the modem 320, and / or the processor 312 of the BS 105 may establish a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and one or more transmit-receive points (TRPs), each TRP corresponding to a PCI of a plurality of PCIs.

[0120] In certain implementations, the processor 312, the modem 320, the communication component 322, the transceiver 302, the receiver 306, the transmitter 308, the RF front end 388 and / or subcomponents of the RF front end 388 may be configured to and / or may define components for establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of a plurality of TRPs, each TRP corresponding to a PCI of a plurality of PCIs.

[0121] Alternatively or additionally, the method 700 may further include any of the above methods, wherein at least one of the layer 1 signaling or the layer 2 signaling includes downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0122] Alternatively or additionally, method 700 may further include any of the above methods, further including receiving uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH), and if no scrambling ID is configured, using one or more PCIs to descramble a plurality of bits associated with the uplink information.

[0123] Alternatively or additionally, method 700 may further include any of the above methods, wherein receiving uplink information also includes: if no determination ID is configured, receiving uplink information transmitted via at least a timing or frequency hopping mode based on a sequence attribute of one or more PCIs in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4.

[0124] Alternatively or additionally, the method 700 may further include any one of the above methods, wherein the sequence attribute includes at least one of a sequence group, a sequence number, or a cyclic shift.

[0125] Alternatively or additionally, method 700 may further include any of the above methods, further comprising descrambling multiple bits associated with downlink information using one or more PCIs, and transmitting the downlink information via at least one of multiple communication channels, wherein the multiple communication channels include a physical broadcast channel.

[0126] Alternatively or additionally, method 700 may further include any of the above methods, further including descrambling multiple bits associated with downlink information using one or more PCIs, and transmitting the downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel.

[0127] Alternatively or additionally, the method 700 may further include any of the above methods, further comprising transmitting a mapping in a control resource set (CORESET).

[0128] Alternatively or additionally, method 700 may further include any of the above methods, wherein the mapping is a control channel element associated with the CORESET to a resource element group mapping, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameter is one or more PCIs.

[0129] Alternatively or additionally, method 700 may further include any of the above methods, further including: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRSs for at least one of a physical downlink shared channel (PDSCH), a physical downlink control channel (PDDCH), or a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, generating one or more DMRSs based on one or more PCIs.

[0130] Alternatively or additionally, method 700 may further include any of the above methods, and further include receiving one or more demodulation reference signals (DMRS) for a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs, and if a corresponding determination ID is not configured, the one or more DMRS are demodulated based on the one or more PCIs.

[0131] Alternatively or additionally, method 700 may further include any of the above methods, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0132] Alternatively or additionally, method 700 may further include any of the above methods, further comprising transmitting at least one of the corresponding synchronization signal blocks indicating the corresponding PCI from each TRP of the selected subset of multiple TRPs.

[0133] Alternatively or additionally, method 700 may further include any of the above methods, further including transmitting downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0134] Alternatively or additionally, method 700 may further include any of the above methods, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0135] Alternatively or additionally, method 700 may further include any of the above methods, further comprising receiving, from the UE, a measured L1 metric for a serving cell in the plurality of serving cells or each serving cell in a subset of the plurality of serving cells.

[0136] Alternatively or additionally, the method 700 may further include any one of the above methods, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0137] Alternatively or additionally, the method 700 may further include any of the above methods, further including transmitting downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0138] Alternatively or additionally, the method 700 may further include any of the above methods, further comprising determining a subset of the plurality of serving cells based on the received measured L1 metrics.

[0139] Alternatively or additionally, method 700 may further include any of the above methods, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs of the network or a TRP other than the selected subset of the plurality of TRPs of the network.

[0140] Alternatively or additionally, the method 700 may further include any of the above methods, further including transmitting one or more PCIs to the UE.

[0141] Alternatively or additionally, method 700 may further include any of the above methods, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of the network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0142] Alternatively or additionally, method 700 may further include any of the above methods, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0143] Alternatively or additionally, the method 700 may further include any of the above methods, further including transmitting one or more PCIs to the UE.

[0144] Alternatively or additionally, the method 700 may further include any of the above methods, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0145] Alternatively or additionally, the method 700 may further include any of the above methods, wherein the one or more PCIs are process PCIs associated with a plurality of physical processes of the one or more PCIs.

[0146] Additional Implementation

[0147] Certain aspects of the present disclosure include: receiving layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, establishing multiple communication channels with the selected subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from the multiple PCIs, and when no explicitly configured input identifier (ID) is signaled to a UE associated with the multiple physical processes, determining one or more PCIs from the multiple PCIs to be used as one or more default input cell IDs associated with the multiple physical processes.

[0148] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0149] Some aspects of the present disclosure include any one of the above aspects, and also include: if no scrambling ID is configured, using the one or more PCIs to scramble multiple bits associated with uplink information, and transmitting the uplink information via at least one of the multiple communication channels, wherein the multiple communication channels include at least one of physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or physical uplink shared channel (PUSCH).

[0150] Some aspects of the present disclosure include any one of the above aspects, wherein transmitting uplink information further includes: if no determination ID is configured, then transmitting the uplink information in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH format 4 via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0151] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0152] Some aspects of the disclosure include any of the above aspects, further comprising: receiving downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel; and descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0153] Some aspects of the present disclosure include any of the above aspects, and also include: receiving downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel; and using one or more PCIs to descramble a plurality of bits associated with the downlink information.

[0154] Some aspects of the disclosure include any of the above aspects, wherein receiving the downlink information further comprises receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

[0155] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0156] Some aspects of the present disclosure include any one of the above aspects, and also include: receiving one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulating the one or more DMRS based on the one or more PCIs.

[0157] Some aspects of the present disclosure include any one of the above aspects, and also include: receiving one or more demodulation reference signals (DMRS) for a physical broadcast channel (PBCH) from at least one of the multiple TRPs, wherein the one or more DMRS are generated based on the one or more PCIs; and demodulating the one or more DMRS based on the one or more PCIs.

[0158] Some aspects of the present disclosure include any one of the above aspects, and also include: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs; and transmitting one or more DMRSs for a physical uplink shared channel (PUSCH) to at least one TRP among multiple TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0159] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0160] Some aspects of the present disclosure include any of the above aspects, and further include: receiving a corresponding synchronization signal block indicating a corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0161] Some aspects of the present disclosure include any of the above aspects, and further include: receiving downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0162] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0163] Some aspects of the disclosure include any of the above aspects, further comprising: measuring an L1 metric for each serving cell in a subset of the plurality of serving cells.

[0164] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0165] Some aspects of the disclosure include any of the above aspects, further comprising receiving downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0166] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0167] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0168] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0169] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0170] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0171] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0172] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0173] Certain aspects of the present disclosure include a user device having a memory including instructions, a transceiver, and one or more processors operably coupled to the memory and the transceiver, the one or more processors configured to execute the instructions in the memory to: receive layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; establish multiple communication channels with the selected subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from the multiple PCIs; and, when no explicitly configured input identifier (ID) is signaled to a UE associated with multiple physical processes, determine one or more of the multiple PCIs to be used as one or more default input cell IDs associated with the multiple physical processes.

[0174] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0175] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are further configured to: if no scrambling ID is configured, use the one or more PCIs to scramble multiple bits associated with uplink information; transmit the uplink information via at least one of the multiple communication channels, wherein the multiple communication channels include at least one of physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or physical uplink shared channel (PUSCH).

[0176] Some aspects of the present disclosure include any one of the above aspects, wherein transmitting uplink information further includes: if no determination ID is configured, then transmitting the uplink information in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH format 4 via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0177] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0178] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are further configured to: receive downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel; and descramble a plurality of bits associated with the downlink information using one or more PCIs.

[0179] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are further configured to: receive downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel; and descramble a plurality of bits associated with the downlink information using one or more PCIs.

[0180] Some aspects of the disclosure include any of the above aspects, wherein receiving the downlink information further comprises receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

[0181] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0182] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are also configured to: receive one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulate the one or more DMRS based on the one or more PCIs.

[0183] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are also configured to receive one or more demodulation reference signals (DMRS) for a physical broadcast channel (PBCH) from at least one of the multiple TRPs, wherein the one or more DMRS are generated based on the one or more PCIs; and demodulate the one or more DMRS based on the one or more PCIs.

[0184] Some aspects of the present disclosure include any one of the above aspects, wherein the one or more processors are further configured to: if a corresponding determination ID is not configured, modulate one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmit one or more DMRSs for a physical uplink shared channel (PUSCH) to at least one TRP among multiple TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0185] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0186] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are further configured to receive a corresponding synchronization signal block indicating a corresponding PCI from each TRP of a selected subset of the plurality of TRPs.

[0187] Some aspects of the present disclosure include any of the above aspects, wherein the one or more processors are further configured to receive downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0188] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0189] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are further configured to measure an L1 metric for each serving cell in a subset of the plurality of serving cells.

[0190] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0191] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are further configured to receive downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0192] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0193] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0194] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0195] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0196] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0197] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0198] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0199] Certain aspects of the present disclosure include a non-transitory computer-readable medium having instructions stored therein, which, when executed by one or more processors of a user equipment (UE), causes the one or more processors to: receive layer 1 signaling or layer 2 signaling indicating a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; establish multiple communication channels with the selected subset of the multiple TRPs, wherein each TRP includes a corresponding PCI from the multiple PCIs; and when no explicitly configured input identifier (ID) is signaled to the UE associated with multiple physical processes, determine one or more of the multiple PCIs to be used as one or more default input cell IDs associated with the multiple physical processes.

[0200] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0201] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: if no scrambling ID is configured, using the one or more PCIs to scramble multiple bits associated with uplink information; transmitting the uplink information via at least one of the multiple communication channels, wherein the multiple communication channels include at least one of physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or physical uplink shared channel (PUSCH).

[0202] Some aspects of the present disclosure include any of the above aspects, wherein the instructions for transmitting uplink information also include instructions for: if no determination ID is configured, then transmitting the uplink information in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH format 4 via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0203] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0204] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel; and descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0205] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel; and descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0206] Some aspects of the disclosure include any of the above aspects, wherein the instructions for receiving downlink information further include instructions for: receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

[0207] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0208] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulating the one or more DMRS based on the one or more PCIs.

[0209] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving one or more demodulation reference signals (DMRS) for a physical broadcast channel (PBCH) from at least one of the multiple TRPs, wherein the one or more DMRS are generated based on the one or more PCIs; and demodulating the one or more DMRS based on the one or more PCIs.

[0210] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs; and transmitting one or more DMRSs for a physical uplink shared channel (PUSCH) to at least one TRP among multiple TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0211] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0212] Some aspects of the present disclosure include any of the above aspects, further comprising instructions for receiving, from each TRP of a selected subset of a plurality of TRPs, a corresponding synchronization signal block indicating a corresponding PCI.

[0213] Some aspects of the present disclosure include any of the above aspects, and further include instructions for: receiving downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0214] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0215] Some aspects of the disclosure include any of the above aspects, further comprising instructions for measuring an L1 metric for each serving cell in a subset of the plurality of serving cells.

[0216] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0217] Some aspects of the disclosure include any of the above aspects, further comprising instructions for receiving downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0218] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0219] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0220] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0221] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0222] Some aspects of the disclosure include any of the above aspects, wherein determining the one or more PCIs further comprises identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

[0223] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0224] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0225] Certain aspects of the present disclosure include: a component for receiving layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network; a component for establishing multiple communication channels with the selected subset of multiple TRPs, wherein each TRP includes a corresponding PCI from multiple PCIs; and a component for determining one or more PCIs from multiple PCIs to be used as one or more default input cell IDs associated with multiple physical processes when no explicitly configured input identifiers (IDs) are signaled to a UE associated with multiple physical processes.

[0226] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0227] Some aspects of the present disclosure include any of the above aspects, and also include: if no scrambling ID is configured, a component for scrambling multiple bits associated with uplink information using the one or more PCIs; a component for transmitting the uplink information via at least one of the multiple communication channels, wherein the multiple communication channels include at least one of physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or physical uplink shared channel (PUSCH).

[0228] Some aspects of the present disclosure include any of the above aspects, wherein the component for transmitting uplink information also includes a component for transmitting the uplink information via at least a timing or frequency hopping mode based on a sequence attribute of one or more PCIs in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH format 4 if a determination ID is not configured.

[0229] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0230] Some aspects of the present disclosure include any of the above aspects, and also include: a component for receiving downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel; and a component for descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0231] Some aspects of the present disclosure include any of the above aspects, and also include a component for receiving downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel; and a component for descrambling a plurality of bits associated with the downlink information using one or more PCIs.

[0232] Some aspects of the disclosure include any of the above aspects, wherein the means for receiving the downlink information further comprises means for receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

[0233] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0234] Some aspects of the present disclosure include any of the above aspects, and also include a component for: receiving one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulating the one or more DMRS based on the one or more PCIs.

[0235] Some aspects of the present disclosure include any of the above aspects, and also include: a component for receiving one or more demodulation reference signals (DMRS) for a physical broadcast channel (PBCH) from at least one of the multiple TRPs, wherein the one or more DMRS are generated based on the one or more PCIs; and a component for demodulating the one or more DMRS based on the one or more PCIs.

[0236] Some aspects of the present disclosure include any one of the above aspects, and also include: if a corresponding determination ID is not configured, a component for modulating one or more demodulation reference signals (DMRS) based on one or more PCIs; and a component for transmitting one or more DMRSs for a physical uplink shared channel (PUSCH) to at least one TRP among multiple TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0237] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0238] Some aspects of the present disclosure include any of the above aspects, and also include a component for receiving a corresponding synchronization signal block indicating a corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0239] Some aspects of the present disclosure include any of the above aspects, and also include a component for receiving downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0240] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0241] Some aspects of the disclosure include any of the above aspects, further comprising means for measuring an L1 metric for each serving cell in a subset of the plurality of serving cells.

[0242] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0243] Some aspects of the disclosure include any of the above aspects, further comprising means for receiving downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0244] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0245] Some aspects of the disclosure include any of the above aspects, wherein the means for determining one or more PCIs further comprises means for identifying one or more PCIs received from a base station or identifying one or more PCIs based on one or more rules.

[0246] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0247] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0248] Some aspects of the disclosure include any of the above aspects, wherein the means for determining one or more PCIs further comprises means for identifying one or more PCIs received from a base station or identifying one or more PCIs based on one or more rules.

[0249] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0250] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0251] Certain aspects of the present disclosure include: transmitting layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and the selected subset of the plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0252] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0253] Some aspects of the present disclosure include any of the above aspects, and also include: receiving uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH); and if no scrambling ID is configured, using one or more PCIs to descramble a plurality of bits associated with the uplink information.

[0254] Some aspects of the present disclosure include any one of the above aspects, wherein receiving uplink information further includes: if no determination ID is configured, then in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4, receiving uplink information transmitted via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0255] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0256] Some aspects of the present disclosure include any of the above aspects, and also include: using one or more PCIs to descramble multiple bits associated with downlink information, and transmitting the downlink information via at least one of multiple communication channels, wherein the multiple communication channels include a physical broadcast channel.

[0257] Some aspects of the present disclosure include any of the above aspects, and also include: using one or more PCIs to descramble multiple bits associated with downlink information, and transmitting the downlink information via at least one of multiple communication channels, wherein if no scrambling ID is configured, the multiple communication channels include at least one of a physical downlink control channel or a physical downlink shared channel.

[0258] Some aspects of the disclosure include any of the above aspects, further comprising transmitting mappings in a control resource set (CORESET).

[0259] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0260] Some aspects of the present disclosure include any one of the above aspects, and also include: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRSs for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0261] Some aspects of the present disclosure include any of the above aspects, and also include: modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRS for a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein the one or more DMRSs are generated based on one or more PCIs.

[0262] Some aspects of the present disclosure include any one of the above aspects, and also include: receiving one or more demodulation reference signals (DMRS) for a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulating the one or more DMRSs based on the one or more PCIs.

[0263] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0264] Some aspects of the present disclosure include any of the above aspects, and further include transmitting at least one of the corresponding synchronization signal blocks indicating the corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0265] Some aspects of the present disclosure include any of the above aspects, and further include transmitting downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0266] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0267] Some aspects of the disclosure include any of the above aspects, further comprising receiving, from the UE, a measured L1 metric for each serving cell in a serving cell of the plurality of serving cells or a subset of the plurality of serving cells.

[0268] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0269] Some aspects of the disclosure include any of the above aspects, further comprising transmitting downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0270] Some aspects of the disclosure include any of the above aspects, further comprising determining a subset of the plurality of serving cells based on the received measured L1 metrics.

[0271] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0272] Some aspects of the disclosure include any of the above aspects, further comprising transmitting one or more PCIs to the UE.

[0273] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0274] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0275] Some aspects of the disclosure include any of the above aspects, further comprising transmitting one or more PCIs to the UE.

[0276] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0277] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0278] Certain aspects of the present disclosure include a base station having a memory including instructions, a transceiver, and one or more processors operably coupled to the memory and the transceiver, the one or more processors configured to execute the instructions in the memory to: transmit layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establish a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of the plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0279] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0280] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: receive uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH); and if no scrambling ID is configured, use one or more PCIs to descramble a plurality of bits associated with the uplink information.

[0281] Some aspects of the present disclosure include any one of the above aspects, wherein receiving uplink information further includes: if no determination ID is configured, then in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4, receiving uplink information transmitted via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0282] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0283] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: use one or more PCIs to descramble multiple bits associated with downlink information and transmit the downlink information via at least one of multiple communication channels, wherein the multiple communication channels include a physical broadcast channel.

[0284] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: descramble multiple bits associated with downlink information using one or more PCIs, and transmit the downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel.

[0285] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to transmit a mapping in a control resource set (CORESET).

[0286] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0287] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: if a corresponding determination ID is not configured, modulate one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmit one or more DMRSs for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0288] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: modulate one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmit one or more DMRS for a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein the one or more DMRSs are generated based on one or more PCIs.

[0289] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to: receive one or more demodulation reference signals (DMRS) for a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulate the one or more DMRS based on the one or more PCIs.

[0290] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0291] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to transmit at least one of the corresponding synchronization signal blocks indicating the corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0292] Some aspects of the present disclosure include any of the above aspects, wherein one or more processors are configured to transmit downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0293] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0294] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to receive, from the UE, a measured L1 metric for a serving cell in a plurality of serving cells or each serving cell in a subset of the plurality of serving cells.

[0295] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0296] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to transmit downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0297] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to determine a subset of the plurality of serving cells based on the received measured L1 metrics.

[0298] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0299] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to transmit one or more PCIs to the UE.

[0300] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0301] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0302] Some aspects of the disclosure include any of the above aspects, wherein the one or more processors are configured to transmit one or more PCIs to the UE.

[0303] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0304] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0305] Certain aspects of the present disclosure include: a component for transmitting layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmission-reception points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and a component for establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and a selected subset of multiple TRPs, each TRP corresponding to a PCI of the multiple PCIs.

[0306] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0307] Some aspects of the present disclosure include any of the above aspects, and also include: a component for receiving uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH); and a component for descrambling a plurality of bits associated with the uplink information using one or more PCIs if no scrambling ID is configured.

[0308] Some aspects of the present disclosure include any one of the above aspects, wherein the component for receiving uplink information also includes: if no determination ID is configured, then in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4, a component for receiving uplink information transmitted via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0309] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0310] Some aspects of the present disclosure include any of the above aspects, and also include: a component for descrambling multiple bits associated with downlink information using one or more PCIs, and a component for transmitting the downlink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include a physical broadcast channel.

[0311] Some aspects of the present disclosure include any of the above aspects, and also include: a component for descrambling multiple bits associated with downlink information using one or more PCIs, and a component for transmitting the downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel.

[0312] Some aspects of the disclosure include any of the above aspects, further comprising means for transmitting a mapping in a control resource set (CORESET).

[0313] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0314] Some aspects of the present disclosure include any one of the above aspects, and also include: if a corresponding determination ID is not configured, a component for modulating one or more demodulation reference signals (DMRS) based on one or more PCIs; and a component for transmitting one or more DMRSs for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0315] Some aspects of the present disclosure include any of the above aspects, and also include: a component for modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and a component for transmitting one or more DMRS for a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein the one or more DMRSs are generated based on one or more PCIs.

[0316] Some aspects of the present disclosure include any of the above aspects, and also include: a component for receiving one or more demodulation reference signals (DMRS) for a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, a component for demodulating the one or more DMRS based on the one or more PCIs.

[0317] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0318] Some aspects of the present disclosure include any of the above aspects, and also include a component for transmitting at least one of the corresponding synchronization signal blocks indicating the corresponding PCI from each TRP of a selected subset of multiple TRPs.

[0319] Some aspects of the present disclosure include any of the above aspects, and also include a component for transmitting downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0320] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0321] Some aspects of the disclosure include any of the above aspects, further comprising means for receiving, from the UE, measured L1 metrics for each serving cell in a serving cell of the plurality of serving cells or a subset of the plurality of serving cells.

[0322] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0323] Some aspects of the disclosure include any of the above aspects, further comprising means for transmitting downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0324] Some aspects of the disclosure include any of the above aspects, further comprising means for determining a subset of the plurality of serving cells based on the received measured L1 metric.

[0325] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0326] Some aspects of the disclosure include any of the above aspects, further comprising means for transmitting one or more PCIs to a UE.

[0327] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0328] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0329] Some aspects of the disclosure include any of the above aspects, further comprising means for transmitting one or more PCIs to a UE.

[0330] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0331] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0332] Certain aspects of the present disclosure include a non-transitory computer-readable medium having instructions for: transmitting layer 1 signaling or layer 2 signaling, wherein the layer 1 signaling or layer 2 signaling indicates a selected subset of multiple physical cell identifiers (PCIs) associated with a selected subset of multiple transmit-receive points (TRPs) in a network, wherein, when no explicitly configured input identifier (ID) is signaled to a user equipment (UE) associated with multiple physical processes, one or more of the multiple PCIs are configured to be used by the UE as one or more default input cell IDs associated with the multiple physical processes; and establishing a communication channel with the UE, wherein the communication channel is one of a plurality of communication channels between the UE and the selected subset of the plurality of TRPs, each TRP corresponding to a PCI of the plurality of PCIs.

[0333] An aspect of the present disclosure includes the above aspect, wherein at least one of the layer 1 signaling or the layer 2 signaling comprises downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

[0334] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving uplink information via at least one of a plurality of communication channels, wherein the plurality of communication channels include at least one of a physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or a physical uplink shared channel (PUSCH); and if no scrambling ID is configured, using one or more PCIs to descramble a plurality of bits associated with the uplink information.

[0335] Some aspects of the present disclosure include any one of the above aspects, wherein receiving uplink information further includes: if no determination ID is configured, then in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH 4, receiving uplink information transmitted via at least a timing or frequency hopping mode based on sequence attributes of one or more PCIs.

[0336] Some aspects of the disclosure include any of the above aspects, wherein the sequence attribute comprises at least one of a sequence group, a sequence number, or a cyclic shift.

[0337] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: using one or more PCIs to descramble multiple bits associated with downlink information, and transmit the downlink information via at least one of multiple communication channels, wherein the multiple communication channels include a physical broadcast channel.

[0338] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: using one or more PCIs to descramble multiple bits associated with downlink information, and transmitting the downlink information via at least one of a plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel.

[0339] Some aspects of the disclosure include any of the above aspects, further comprising instructions for transmitting a mapping in a control resource set (CORESET).

[0340] Some aspects of the present disclosure include any of the above aspects, wherein the mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping includes an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameters are provided, the parameters are one or more PCIs.

[0341] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: if a corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRSs for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on one or more PCIs.

[0342] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: modulating one or more demodulation reference signals (DMRS) based on one or more PCIs, and transmitting one or more DMRS for a physical broadcast channel (PBCH) from at least one of a plurality of TRPs, wherein the one or more DMRSs are generated based on one or more PCIs.

[0343] Some aspects of the present disclosure include any of the above aspects, and also include instructions for: receiving one or more demodulation reference signals (DMRS) for a physical uplink shared channel (PUSCH) to at least one of a plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on one or more PCIs; and if a corresponding determination ID is not configured, demodulating the one or more DMRS based on the one or more PCIs.

[0344] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a serving cell, and each TRP of the selected subset of multiple TRPs includes a corresponding PCI.

[0345] Some aspects of the present disclosure include any of the above aspects, and further include instructions for transmitting at least one of the corresponding synchronization signal blocks indicating the corresponding PCI from each TRP of the selected subset of multiple TRPs.

[0346] Some aspects of the present disclosure include any of the above aspects, and further include instructions for transmitting downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of multiple TRPs.

[0347] Some aspects of the present disclosure include any of the above aspects, wherein a selected subset of multiple TRPs is associated with a subset of multiple service cells, and a subset of multiple PCIs is each associated with a subset of multiple service cells.

[0348] Some aspects of the disclosure include any of the above aspects, further comprising instructions for receiving, from a UE, measured L1 metrics for a serving cell in a plurality of serving cells or each serving cell in a subset of the plurality of serving cells.

[0349] Some aspects of the disclosure include any of the above aspects, wherein the L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

[0350] Some aspects of the disclosure include any of the above aspects, further comprising instructions for transmitting downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating a subset of the plurality of serving cells.

[0351] Some aspects of the disclosure include any of the above aspects, further comprising instructions for determining a subset of the plurality of serving cells based on the received measured L1 metric.

[0352] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of a plurality of TRPs of a network or are associated with a TRP other than the selected subset of a plurality of TRPs of a network.

[0353] Some aspects of the disclosure include any of the above aspects, further comprising instructions for transmitting one or more PCIs to a UE.

[0354] Some aspects of the present disclosure include any of the above aspects, wherein one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of multiple TRPs of a network, a lowest PCI among multiple PCIs, or a highest PCI among multiple PCIs.

[0355] Some aspects of the disclosure include any of the above aspects, wherein one or more PCIs are associated with a selected subset of the plurality of TRPs.

[0356] Some aspects of the disclosure include any of the above aspects, further comprising instructions for transmitting one or more PCIs to a UE.

[0357] Some aspects of the disclosure include any of the above aspects, wherein the new PCI is associated with a lowest PCI among the plurality of PCIs or a highest PCI among the plurality of PCIs.

[0358] Some aspects of the disclosure include any of the above aspects, wherein the one or more PCIs are processing PCIs associated with multiple physical processes of the one or more PCIs.

[0359] The detailed description set forth above in conjunction with the accompanying drawings describes examples and does not represent the only examples that can be implemented or within the scope of the claims. When used in this description, the term "example" means "used as an example, instance or illustration", rather than "preferred" or "better than other examples". The detailed description includes specific details for the purpose of providing an understanding of the technology. However, these technologies can be practiced without these specific details. For example, the functions and arrangements of the elements discussed can be changed without departing from the scope of this disclosure. In addition, various examples can appropriately omit, replace or add various processes or components. For example, the described method can be performed in a different order than described, and various steps can be added, omitted or combined. In addition, the features described in some examples can be combined in other examples. In some cases, well-known structures and devices are shown in block diagram form to avoid confusing the concepts of the described examples.

[0360] It should be noted that the technology described herein can be used for various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM TM Radio technologies such as LTE and UTRA. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP LTE and LTE-Advanced (LTE-A) are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio spectrum bands. However, the description here describes an LTE / LTE-A system or a 5G system for example purposes, and the LTE terminology is used in most of the following description, although these techniques may be applicable to other next generation communication systems.

[0361] Information and signals may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer executable codes or instructions stored on a computer-readable medium, or any combination thereof.

[0362] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a specially programmed device, such as, but not limited to, a processor designed to perform the functions described herein, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration.

[0363] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, these functions can be stored as one or more instructions or codes on a non-transitory computer-readable medium or transmitted thereon. Other examples and implementations are within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, the above functions can be implemented using software, hardware, firmware, hard wiring, or any combination thereof executed by a specially programmed processor. The features that implement the functions can also be physically located in various locations, including being distributed so that some functions are implemented in different physical locations. In addition, as used herein, including in the claims, the "or" used in the list of items starting with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0364] Computer-readable media include computer storage media and communication media, including any media that facilitates the transfer of computer programs from one place to another. Storage media can be any available media that can be accessed by a general or special computer. By way of example and not limitation, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or can be used to carry or store desired program code devices in the form of instructions or data structures and can be accessed by a general or special computer or a general or special processor. Any other medium. Similarly, any connection is properly referred to as computer-readable media. For example, if software is transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. The dish and disk used here include compact disk (CD), laser disk, optical disk, digital versatile disk (DVD), floppy disk and blue disk, wherein the dish usually reproduces data magnetically, and the disk reproduces data optically with laser. The above combination is also included in the scope of computer-readable media.

[0365] The foregoing description of the present disclosure is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art without departing from the spirit or scope of the present disclosure, and the common principles defined herein may be applied to other variations. In addition, although the elements of the described aspects may be described or claimed in singular form, the plural form is also contemplated unless expressly stated to be limited to the singular form. In addition, all or a portion of any aspect may be used together with all or a portion of any other aspect, unless otherwise stated. Therefore, the present disclosure is not limited to the examples and designs described herein, but conforms to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication by a user equipment (UE) in a network, comprising: receiving layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in the network; establishing a plurality of communication channels with a selected subset of the plurality of TRPs, wherein each TRP includes a corresponding PCI of the plurality of PCIs; as well as When no explicitly configured input identifications (IDs) are signaled to UEs associated with the plurality of physical processes, one or more PCIs of the plurality of PCIs are determined to be used as one or more default input cell IDs associated with the plurality of physical processes.

2. The method according to claim 1, wherein: At least one of the layer 1 signaling or the layer 2 signaling includes downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling.

3. The method according to claim 1, further comprising: If no scrambling ID is configured, scrambling a plurality of bits associated with the uplink information using the one or more PCIs; as well as The uplink information is transmitted via at least one of the multiple communication channels, wherein the multiple communication channels include at least one of physical uplink control channel (PUCCH) format 2, PUCCH format 3, PUCCH format 4, or physical uplink shared channel (PUSCH).

4. The method according to claim 3, wherein: Transmitting uplink information also includes: if no determination ID is configured, transmitting the uplink information in at least one of PUCCH format 0, PUCCH format 1, PUCCH format 3 or PUCCH format 4 via at least a timing or frequency hopping mode based on the sequence attributes of the one or more PCIs.

5. The method according to claim 4, wherein: The sequence attribute includes at least one of a sequence group, a sequence number, or a cyclic shift.

6. The method according to claim 1, further comprising: receiving downlink information via at least one of the plurality of communication channels, wherein the plurality of communication channels comprises a physical broadcast channel; and A plurality of bits associated with the downlink information are descrambled using the one or more PCIs.

7. The method according to claim 1, further comprising: receiving downlink information via at least one of the plurality of communication channels, wherein if no scrambling ID is configured, the plurality of communication channels include at least one of a physical downlink control channel or a physical downlink shared channel; and A plurality of bits associated with the downlink information are descrambled using the one or more PCIs.

8. The method according to claim 7, wherein: Receiving the downlink information further includes receiving the downlink information via resources indicated by a mapping in a control resource set (CORESET).

9. The method according to claim 8, wherein: The mapping is a control channel element to resource element group mapping associated with a CORESET, wherein the mapping comprises an interleaving pattern as a function of a parameter, wherein if no radio resource control (RRC) configured parameter is provided, the parameter is the one or more PCIs.

10. The method according to claim 1, further comprising: Receiving one or more demodulation reference signals (DMRS) for at least one of a physical downlink shared channel (PDSCH) or a physical downlink control channel (PDDCH) from at least one of the plurality of TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRS are generated based on the one or more PCIs; and If the corresponding determination ID is not configured, the one or more DMRSs are demodulated based on the one or more PCIs.

11. The method according to claim 1, further comprising: receiving one or more demodulation reference signals (DMRS) for a physical broadcast channel (PBCH) from at least one of the plurality of TRPs, wherein the one or more DMRS are generated based on the one or more PCIs; and The one or more DMRSs are demodulated based on the one or more PCIs.

12. The method according to claim 1, further comprising: If the corresponding determination ID is not configured, modulating one or more demodulation reference signals (DMRS) based on the one or more PCIs; as well as One or more DMRSs for a physical uplink shared channel (PUSCH) are transmitted to at least one of the multiple TRPs, wherein if a corresponding determination ID is not configured, the one or more DMRSs are generated based on the one or more PCIs.

13. The method of claim 1, wherein: The selected subset of the plurality of TRPs is associated with a serving cell; and Each TRP of the selected subset of the plurality of TRPs includes a corresponding PCI.

14. The method according to claim 13, further comprising: A corresponding synchronization signal block indicating a corresponding PCI is received from each TRP of the selected subset of the plurality of TRPs.

15. The method according to claim 14, further comprising: Receive downlink control information (DCI) signaling or media access control (MAC)-control element (CE) signaling indicating a selected subset of the multiple TRPs.

16. The method of claim 1, wherein: The selected subset of the plurality of TRPs is associated with a subset of the plurality of serving cells; and The subsets of the plurality of PCIs are each associated with a subset of the plurality of serving cells.

17. The method according to claim 16, further comprising: An L1 metric is measured for each serving cell in the subset of the plurality of serving cells.

18. The method according to claim 17, wherein: The L1 metric includes at least one of a reference signal received power, a signal to interference and noise ratio, or a reference signal received quality.

19. The method of claim 17, further comprising receiving downlink control information (DCI) signaling or medium access control (MAC)-control element (CE) signaling indicating the subset of the plurality of serving cells.

20. The method according to claim 1, wherein: The one or more PCIs are associated with a selected subset of the plurality of TRPs of the network or with a TRP other than the selected subset of the plurality of TRPs of the network.

21. The method according to claim 18, wherein: Determining the one or more PCIs further includes identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

22. The method according to claim 20, wherein: The one or more PCIs are associated with an anchor cell, an anchor TRP of a selected subset of the plurality of TRPs of the network, a lowest PCI among the plurality of PCIs, or a highest PCI among the plurality of PCIs.

23. The method according to claim 1, wherein: The one or more PCIs are associated with a selected subset of the plurality of TRPs.

24. The method according to claim 23, wherein: Determining the one or more PCIs further includes identifying the one or more PCIs received from a base station or identifying the one or more PCIs based on one or more rules.

25. The method according to claim 23, wherein: The new PCI is associated with the lowest PCI among the plurality of PCIs or the highest PCI among the plurality of PCIs.

26. The method of claim 1, wherein: The one or more PCIs are process PCIs associated with a plurality of physical processes of the one or more PCIs.

27. A user equipment (UE), comprising: a memory including instructions; Transceiver; as well as one or more processors operably coupled to the memory and the transceiver, the one or more processors configured to execute instructions in the memory to: receiving, via the transceiver, layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in a network; establishing, via the transceiver, a plurality of communication channels with a selected subset of the plurality of TRPs, wherein each TRP includes a corresponding PCI of the plurality of PCIs; as well as When no explicitly configured input identifications (IDs) are signaled to UEs associated with the plurality of physical processes, one or more PCIs of the plurality of PCIs are determined to be used as one or more default input cell IDs associated with the plurality of physical processes.

28. A non-transitory computer readable medium having stored therein instructions which, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: receiving layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in a network; establishing a plurality of communication channels with a selected subset of the plurality of TRPs, wherein: Each TRP includes a corresponding PCI among the plurality of PCIs; as well as When no explicitly configured input identifications (IDs) are signaled to UEs associated with the plurality of physical processes, one or more PCIs of the plurality of PCIs are determined to be used as one or more default input cell IDs associated with the plurality of physical processes.

29. A user equipment (UE), comprising: means for receiving layer 1 signaling or layer 2 signaling indicating a selected subset of a plurality of physical cell identities (PCIs) associated with a selected subset of a plurality of transmit-receive points (TRPs) in a network; means for establishing a plurality of communication channels with a selected subset of the plurality of TRPs, wherein each TRP includes a corresponding PCI of the plurality of PCIs; as well as A component for determining one or more PCIs of the plurality of PCIs to use as one or more default input cell IDs associated with the plurality of physical processes when no explicitly configured input identifications (IDs) are signaled to UEs associated with the plurality of physical processes.

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