Mapping control resources to physical cells

Abstract

Methods, systems, and devices are described for wireless communication to enable one or both of a base station or a user equipment (UE) to identify one or more Physical Cell Identifiers (PCIs) for scheduled communications using an association between the one or more PCIs and a Control Resource Set (CORESET), such as an authorization for sending scheduled communications. The base station may identify a mapping between one or more PCIs associated with the communication, and may send an authorization to the UE to schedule the communication on a CORESET associated with the one or more PCIs. The UE may identify a mapping between the CORESET and one or more PCIs associated with the communication based on receiving the grant in the CORESET. The UE and the base station may transmit a message scheduled by the grant using parameters associated with the one or more identified PCIs.

Description

[0001] This application is a divisional application of the invention whose applicant is Qualcomm Incorporated, whose application date is April 28, 2021, whose application number is 202180030686.7, and whose name is “Mapping control resources to physical cells”.

[0002] Cross-references

[0003] This patent application claims priority to U.S. patent application No. 17 / 242,032, entitled “MAPPING A CONTROL RESOURCE TO A PHYSICAL CELL,” filed by ZHOU et al. on April 27, 2021, which claims the benefit of U.S. provisional patent application No. 63 / 018,279, entitled “MAPPING A CONTROL RESOURCE TO A PHYSICALCELL,” filed by ZHOU et al. on April 30, 2020, which has been assigned to the assignee of this application. Technical Field

[0004] The following relates generally to wireless communications, and more particularly to mapping control resources to physical cells. Background Art

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems, which may be referred to as new radio (NR) systems. These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread spectrum orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication for multiple communication devices, which may also be referred to as user equipment (UE).

[0006] The UE may be configured with multiple candidate cells for communicating with one or more base stations of the wireless communication network. The UE may be configured to communicate with a subset of the candidate cells at a time, and in some cases may not be aware of communication parameters of messages transmitted via one or more subsets of the candidate cells. Summary of the invention

[0007] The described technology relates to improved methods, systems, devices and apparatuses that support mapping control resources to physical cells. In general, the described technology provides one or both of a base station or a user equipment (UE) to identify one or more physical cell identifiers (PCIs) for scheduled communications, for example, using an association between one or more PCIs and a control resource set (CORESET) for sending a grant for scheduled communications. The association may be explicitly signaled to the UE by the base station, or may be based on an implicit rule (e.g., a predefined rule, such as defined in a wireless communication standard or previously configured at a device such as a UE). The association may be an association between a CORESET and one or more PCIs, or an association between a search space of a CORESET and one or more PCIs. In some cases, the association may include an association between one or more PCIs and a pool index of a CORESET or a pool index of a search space of a CORESET. The association may change based on one or more active PCIs associated with communications between the UE and the base station, or may be independent of one or more active PCIs. As described herein, without departing from the scope of the present disclosure, CORESET, search space or PCI may represent one or more CORESETs, one or more search spaces or one or more PCIs, respectively.

[0008] The base station may identify a mapping between one or more PCIs associated with a communication (e.g., an uplink or downlink message). The base station may send a grant to schedule the communication via a CORESET associated with the one or more PCIs (e.g., in a corresponding search space), and the UE may receive the grant via the CORESET. Based on receiving the grant via the CORESET, the UE may identify a mapping between the CORESET (e.g., or an associated search space) and the one or more PCIs associated with the communication. Based on the one or more PCIs, for example, using one or more parameters associated with the one or more identified PCIs, the UE may receive a downlink message scheduled by the grant, or may send an uplink message scheduled by the grant. Similarly, the base station may send a downlink message scheduled by the grant, or may receive an uplink message scheduled by the grant, using one or more parameters associated with the one or more PCIs.

[0009] A method of wireless communication at a UE is described. The method may include receiving a control message from a base station scheduling communication between the UE and the base station via one or more CORESETs of one or more search spaces; identifying an association between the one or more CORESETs of the one or more search spaces and one or more PCIs based on receiving the control message; and communicating with the base station according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0010] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to receive a control message from a base station scheduling communication between the UE and the base station via one or more CORESETs of one or more search spaces; based on receiving the control message, identify an association between one or more CORESETs of one or more search spaces and one or more PCIs; and based on the association between the one or more CORESETs and the one or more PCIs, communicate with the base station according to one or more parameters associated with the one or more PCIs.

[0011] Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving a control message from a base station scheduling communication between the UE and the base station via one or more CORESETs of one or more search spaces; identifying an association between the one or more CORESETs of the one or more search spaces and one or more PCIs based on receiving the control message; and communicating with the base station based on one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0012] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to receive a control message from a base station scheduling communication between the UE and the base station via one or more CORESETs of one or more search spaces; based on receiving the control message, identify an association between the one or more CORESETs of the one or more search spaces and one or more PCIs; and based on the association between the one or more CORESETs and the one or more PCIs, communicate with the base station according to one or more parameters associated with the one or more PCIs.

[0013] A method of wireless communication at a base station is described. The method may include identifying an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with a UE; sending a control message to the UE to schedule communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicating with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0014] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with a UE; send a control message to the UE scheduling communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0015] Another apparatus for wireless communication at a base station is described. The apparatus may include means for identifying an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with a UE; sending a control message to the UE scheduling communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicating with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0016] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with a UE; send a control message to the UE to schedule communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 1 illustrates an example of a wireless communication system supporting mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0018] 2 illustrates an example of a wireless communication system supporting mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0019] 3A , 3B and 3C illustrate respective examples of mapping configurations supporting mapping of control resources to physical cells according to aspects of the present disclosure.

[0020] 4 illustrates an example of a process flow that supports mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0021] 5 and 6 illustrate block diagrams of devices supporting mapping of control resources to physical cells according to aspects of the present disclosure.

[0022] 7 illustrates a block diagram of a communications manager that supports mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0023] 8 illustrates a diagram of a system including devices that support mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0024] 9 and 10 illustrate block diagrams of devices supporting mapping of control resources to physical cells according to aspects of the present disclosure.

[0025] 11 illustrates a block diagram of a communications manager that supports mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0026] 12 illustrates a diagram of a system including devices that support mapping of control resources to physical cells in accordance with aspects of the present disclosure.

[0027] 13 to 18 show flow charts illustrating methods of supporting mapping of control resources to physical cells according to aspects of the present disclosure. DETAILED DESCRIPTION

[0028] In a wireless communication system, a user equipment (UE) may communicate with one or more transmit and receive points (TRPs), one or more serving cells, or a combination thereof, which may be described herein as examples of physical cells for wireless communication. The one or more TRPs or one or more serving cells or both may be associated with or correspond to a base station (e.g., or one or more base stations). The one or more TRPs or serving cells or both may also each be associated with a corresponding physical cell identifier (PCI), where in some examples, the PCI may be provided to the UE by the base station. The wireless communication system may support some technologies for inter-cell mobility so that one or more different PCIs and corresponding physical cells (e.g., TRPs, serving cells) may be used at different times to increase coverage, reliability, and throughput.

[0029] A PCI (e.g., corresponding to a TRP or serving cell) may correspond to one or more communication parameters of the corresponding TRP or serving cell. For example, the PCI may be associated with a transmission configuration indicator (TCI) state, a bit scrambling technique, a rate matching mode, one or more beam parameters, other aspects, or any combination thereof. In some cases, a base station may send an authorization to schedule communications (e.g., a downlink or uplink message) for a UE, where the communication may correspond to one or more TRPs or one or more serving cells (e.g., each associated with a PCI and corresponding communication parameters). If the UE does not know (e.g., has not yet determined) which PCI and corresponding communication parameters are associated with the scheduled transmission, the communication may experience reduced communication quality, or the UE may be unable to send or receive communications. In some cases, indicating a PCI for communication (e.g., via an authorization for scheduling communications or via another transmission) may increase overhead or communication delay, or both.

[0030] The present disclosure provides a technique for a base station or a UE (or both) to identify one or more PCIs for scheduled communications using an association between one or more PCIs and a control resource set (CORESET), for example, for sending an authorization for scheduled communications. The association may be explicitly signaled to the UE by the base station, or may be based on an implicit rule (e.g., a predefined rule, such as a rule defined in a wireless communication standard or previously configured at a device such as a UE). The association may be an association between a CORESET and one or more PCIs, or an association between a search space of a CORESET and one or more PCIs. In some cases, the association may include an association between one or more PCIs and a pool index of a CORESET or a pool index of a search space of a CORESET. The association may change based on one or more active PCIs associated with communications between the UE and the base station, or may be independent of one or more active PCIs. As described herein, without departing from the scope of the present disclosure, a CORESET, a search space, or a PCI may represent one or more CORESETs, one or more search spaces, or one or more PCIs, respectively.

[0031] The base station may identify a mapping between one or more PCIs associated with a communication (e.g., an uplink or downlink message). The base station may send a grant to schedule the communication via a CORESET associated with the one or more PCIs (e.g., in a corresponding search space), and the UE may receive the grant via the CORESET. Based on receiving the grant via the CORESET, the UE may identify a mapping between the CORESET (e.g., or an associated search space) and the one or more PCIs associated with the communication. Based on the one or more PCIs, for example, using one or more parameters associated with the one or more identified PCIs, the UE may receive a downlink message scheduled by the grant, or may send an uplink message scheduled by the grant. Similarly, the base station may send a downlink message scheduled by the grant, or may receive an uplink message scheduled by the grant, using one or more parameters associated with the one or more PCIs.

[0032] Aspects of the present disclosure are initially described in the context of wireless communication systems. Aspects of the present disclosure are further illustrated and described with reference to mapping configurations, process flows, apparatus diagrams, system diagrams, and flowcharts related to mapping control resources to physical cells.

[0033] 1 illustrates an example of a wireless communication system 100 that supports mapping control resources to physical cells according to various aspects of the present disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0034] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be devices in different forms or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0035] UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices in different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), as shown in FIG. 1.

[0036] The base stations 105 may communicate with the core network 130, or with each other, or both. For example, the base stations 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or directly and indirectly, via the backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul links 120 may be or include one or more wireless links.

[0037] The one or more base stations 105 described herein may include or may be referred to by one of ordinary skill in the art as a base station transceiver, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or a giga NodeB (any of which may be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.

[0038] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects, such as appliances or vehicles, meters, etc.

[0039] The UE 115 described herein is capable of communicating with various types of devices, such as other UEs 115 which may sometimes act as relays, as well as base stations 105 and network devices including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, as shown in FIG. 1 .

[0040] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 through one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion (e.g., bandwidth portion (BWP)) of a radio spectrum band operating according to one or more physical layer channels of a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating the operation of the carrier, user data, or other signaling. The wireless communication system 100 may use carrier aggregation or multi-carrier operation to support communication with the UE 115. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0041] The signal waveform transmitted on the carrier may be composed of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may be composed of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by the UE 115 and the higher the order of the modulation scheme, the higher the data rate of the UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further improve the data rate or data integrity of communications with the UE 115.

[0042] The time intervals of the base station 105 or the UE 115 may be expressed in multiples of a basic time unit, which may refer to, for example, a sampling period of Ts=1⁄((∆fmax∙Nf ) ) seconds, where ∆fmax may represent a maximum supported subcarrier spacing and Nf may represent a maximum supported discrete Fourier transform (DFT) size. The time intervals of the communication resources may be organized according to radio frames, each of which has a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0043] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, (e.g., in the time domain) the frame may be divided into subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of the cyclic prefix pre-added to each symbol period). In some wireless communication systems 100, the time slot may be further divided into multiple mini-time slots containing one or more symbols. In addition to the cyclic prefix, each symbol period may contain one or more (e.g., Nf) sampling periods. The duration of the symbol period may depend on the subcarrier spacing or the operating band.

[0044] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0045] Physical channels may be multiplexed on a carrier according to various techniques. For example, physical control channels and physical data channels may be multiplexed on a downlink carrier using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a plurality of symbol periods and may extend across a system bandwidth of a carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more candidate control channels of one or more aggregation levels arranged in a cascaded manner. The aggregation level of a candidate control channel may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information of a control information format having a given payload size. A search space set may include a common search space set configured for sending control information to a plurality of UEs 115, and a UE-specific search space set for sending control information to a specific UE 115.

[0046] Each base station 105 may provide communication coverage via one or more cells, such as macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term "cell" may refer to a logical communication entity used to communicate with the base station 105 (e.g., via a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), etc.) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors, such as the capabilities of the base station 105, such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, etc.

[0047] A macro cell typically covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by a UE 115 with a service subscription to a network provider that supports the macro cell. A small cell may be associated with a base station 105 with lower power than a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 with a service subscription to a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a home or office). A base station 105 may support one or more cells, and may also support communications on one or more cells using one or more component carriers.

[0048] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0049] In some examples, the base stations 105 may be mobile, and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0050] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication or group communication, and can be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include prioritization of services, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency can be used interchangeably in this article.

[0051] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or unable to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without the participation of the base station 105.

[0052] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnections to an external network. The control plane entity may manage non-access stratum (NAS) functions of the UE 115 served by the base station 105 associated with the core network 130, such as mobility, authentication, and bearer management. User IP packets may be transmitted through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the network operator IP service 150. The operator IP service 150 may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or a packet-switched streaming service.

[0053] Some network devices, such as base stations 105, may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or TRPs. Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs), or merged into a single network device (e.g., base station 105).

[0054] The wireless communication system 100 may operate using one or more frequency bands typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, however, the waves may penetrate the structure enough for a macro cell to provide service to a UE 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and a shorter range (e.g., less than 100) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0055] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), unlicensed LTE (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in an unlicensed radio spectrum band, devices such as base stations 105 and UEs 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on carrier aggregation configurations and component carriers operating in licensed bands (e.g., LAA). Operations in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0056] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having multiple rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming of signals sent via the antenna ports.

[0057] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude shift, a phase shift, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other direction).

[0058] The base station 105 or the UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the base station 105 in different directions. For example, the base station 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device such as the base station 105, or by a receiving device such as the UE 115) a beam direction for later transmission or reception by the base station 105.

[0059] Some signals, such as data signals associated with a particular receiving device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a receiving device, such as UE 115). In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0060] In some examples, transmission by a device (e.g., base station 105 or UE 115) can be performed using multiple beam directions, and the device can use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 can report feedback indicating precoding weights for one or more beam directions, and the feedback can correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 can send a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which can be precoded or unprecoded. UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques for sending signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by UE 115) or for sending signals in a single direction (e.g., for sending data to a receiving device).

[0061] When receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals, a receiving device (e.g., UE 115) may try multiple reception configurations (e.g., directional listening). For example, the receiving device may try multiple reception directions by receiving via different antenna subarrays, by processing the received signal according to different antenna subarrays, by receiving according to different reception beamforming weight sets (e.g., different directional listening weight sets) applied to the signal received at multiple antenna elements of the antenna array, or by processing the received signal according to different reception beamforming weight sets applied to the signal received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration may be aligned in a beam direction determined based on listening according to different reception configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0062] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer layer or the packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The medium access control (MAC) layer may perform priority processing and multiplex logical channels into transport channels. The MAC layer may also support retransmission at the MAC layer using error detection techniques, error correction techniques, or both to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or a core network 130 supporting a radio bearer for user plane data. At the physical layer, transport channels may be mapped to physical channels.

[0063] The UE 115 may communicate with one or more base stations 105 via one or more TRPs and / or one or more serving cells. A PCI (e.g., corresponding to a TRP or serving cell) may correspond to one or more communication parameters of the corresponding TRP or serving cell. For example, the PCI may be associated with a TCI state, a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof, for communicating with the corresponding TRP or serving cell. The base station 105 and the UE 115 may identify the one or more PCIs for scheduled communications using an association between the one or more PCIs and a CORESET for sending a grant for scheduled communications.

[0064] For example, the base station 105 may identify a mapping between one or more PCIs associated with a communication (e.g., an uplink or downlink message). The base station 105 may send a grant to schedule the communication via a CORESET associated with the one or more PCIs (e.g., in a corresponding search space), and the UE 115 may receive the grant via the CORESET. Based on receiving the grant via the CORESET, the UE 115 may identify a mapping between the CORESET (e.g., or an associated search space) and the one or more PCIs associated with the communication. Based on the one or more PCIs, for example, using one or more parameters associated with the one or more identified PCIs, the UE 115 may receive a downlink message scheduled by the grant, or may send an uplink message scheduled by the grant. Similarly, the base station 105 may send a downlink message scheduled by the grant, or may receive an uplink message scheduled by the grant, using one or more parameters associated with the one or more PCIs.

[0065] FIG. 2 illustrates an example of a wireless communication system 200 that supports mapping control resources to physical cells according to aspects of the present disclosure. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The wireless communication system 200 may include a UE 115-a, which may be an example of a UE 115 described with reference to FIG. 1. The UE 115-a may communicate with one or more TRPs, one or more serving cells, or a combination thereof. The one or more TRPs and / or one or more serving cells may be examples of small cells as described herein (e.g., among other examples), and may be associated with one or more base stations 105 as described with reference to FIG. 1. For example, one or more TRPs and / or one or more serving cells may be associated with or otherwise correspond to a base station 105-a (e.g., among other base stations 105), and the base station 105-a may be an example of a base station 105 described with reference to FIG. 1.

[0066] UE 115-a may be configured to communicate with base station 105-a via one or more cells (e.g., serving cells or TRPs) and may receive an indication of a set of PCIs corresponding to the one or more cells. In some cases, the PCI may be provided by a base station 105, such as base station 105-a. In some cases, one or more TRPs may be distributed in the wireless communication system 200 and one or more cells may be provided for UE 115-a (e.g., for communicating with at least base station 105-a). The wireless communication system 200 may support some technologies for inter-cell mobility, such as inter-cell mobility based on Layer 1 (L1) and Layer 2 (L2). In some examples, L1 may refer to a physical layer, and L2 may refer to a MAC, RLC, and / or PDCP layer.

[0067] Inter-cell mobility based on L1 or L2 may include multiple modes for communication between a base station 105-a and a UE 115-a. In a first mode of inter-cell mobility, a serving cell (e.g., each serving cell) may be associated with multiple TRPs, which may have different locations. In the first mode, each TRP may have a different PCI, wherein the PCI for the TRP may be carried by a synchronization signal block (SSB) transmitted by the TRP. The UE 115-a may be served by a subset of the TRPs of the serving cell (e.g., a subset of the TRPs of the serving cell of the base station 105-a), which may be indicated by a corresponding PCI value and may be modified by the base station 105-a (e.g., or another associated base station 105) via a control message (e.g., a downlink control information (DCI) message or a MAC control element (CE)). As an example of the first mode, the UE 115-a may communicate with the base station 105-a via a serving cell associated with a first TRP and a second TRP. The TRP may provide corresponding PCIs (e.g., active PCIs) for UE 115-a, which may be indicated to UE 115-a via SSBs sent from the corresponding TRPs, respectively. UE 115-a may receive the SSBs, identify the PCIs for the first and second TRPs, respectively, and may communicate with base station 105-a based on the PCIs for the first and / or second TRPs.

[0068] In a second mode of inter-cell mobility, the UE 115-a may be configured to communicate with a set of serving cells (e.g., candidate serving cells), where a single PCI corresponds to a single serving cell. For example, the UE 115-a may be configured with a set of serving cells for communicating with the base station 105-a, where each serving cell may have a different PCI. The UE 115-a may be configured to measure L1 metrics of the serving cells in the group (e.g., each corresponding serving cell). For example, for each candidate serving cell, the UE 115 may measure L1 reference signal received power (RSRP), signal to interference plus noise ratio (SINR), reference signal received quality (RSRQ), or other L1 characteristic metrics. In a second mode, the UE 115-a may be served by a subset of the set of serving cells, which may be indicated by a corresponding PCI value and may be modified by the base station 105-a (e.g., or another associated base station 105) via a control message (e.g., DCI or MAC CE). The base station 105 - a (eg, providing a serving cell) may determine a subset of serving cells based on an L1 report from the UE 115 - a , for example, the UE 115 - a may send the report to a selected serving cell or an anchor serving cell in the set of serving cells.

[0069] As an example of the second mode, UE 115-a may communicate with base station 105-a via one or more service cells in a set of service cells provided by base station 105-a. For example, base station 105-a may provide UE 115-a with a first service cell associated with a first PCI and a second service cell associated with a second PCI. UE 115-a may perform measurements on the service cells provided by base station 105-a and report the measurements to base station 105-a. Base station 105-a may select at least some service cells, such as a subset of service cells, based on the report, and configure the selected service cells as active service cells for UE 115-a. In some examples, multiple TRPs may provide service cells in the set of service cells. For example, a first TRP may provide one or more service cells, and a second TRP may provide one or more service cells.

[0070] A PCI (e.g., corresponding to a TRP or a serving cell) may correspond to one or more communication parameters of the corresponding TRP or serving cell. For example, the PCI may be associated with a TCI state of the PCI, a bit scrambling technique of a shared channel (e.g., a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH)), a rate matching mode of the shared channel, one or more beam parameters, or any combination thereof. In some cases, the base station 105-a may send a grant 210 scheduling communications (e.g., a downlink message 215 or an uplink message 220) for the UE 115-a, where the communications may correspond to one or more TRPs or one or more serving cells (e.g., each associated with an indicated PCI and corresponding communication parameters). If the UE 115-a does not know which PCI and corresponding communication parameters are associated with the scheduled transmission (e.g., among the active PCIs of the UE 115-a), the communications may experience reduced communication quality, or the UE 115-a may be unable to send or receive communications. In some cases, indicating a PCI for communication (eg, via a grant that schedules the communication or via another transport) may increase overhead or communication latency, or both, among other issues.

[0071] The present disclosure provides a technique for one or both of a base station 105-a or a UE 115-a to identify one or more PCIs for scheduled communications using an association between one or more PCIs and a CORESET for transmitting a grant 210 for scheduled communications. The association may be explicitly signaled to the UE 115-a by the base station 105-a via a message 205 (e.g., an RRC, DCI, or MAC CE message), or may be based on an implicit rule (e.g., a predefined rule, such as a rule defined in a wireless communication standard or a rule previously configured at a device such as the UE 115-a or the base station 105-a). The association may be an association between a CORESET and one or more PCIs, or an association between a search space of a CORESET and one or more PCIs. In some cases, the association may include an association between one or more PCIs and a pool index of a CORESET or a pool index of a corresponding search space. The association may change based on one or more active PCIs associated with communications between the UE 115-a and the base station 105-a, or may be independent of the one or more active PCIs.

[0072] In a first example, the base station 105-a may send an RRC, DCI, or MAC CE message (e.g., message 205) to the UE 115-a, which may explicitly indicate a mapping or association between one or more PCIs and a CORESET. The mapping or association may include an association between one or more corresponding PCIs and each CORESET in a set of CORESETs used for communication between the UE 115-a and the base station 105-a, an association between one or more corresponding PCIs and each search space in a set of search spaces used for communication between the UE 115-a and the base station 105-a, or any combination thereof. In some cases, the message 205 may indicate an association or mapping between one or more corresponding PCIs and a pool index for each CORESET in the set of CORESETs, an association or mapping between one or more corresponding PCIs and a pool index for each search space in the set of search spaces, or any combination thereof. In some cases, the mapping may change with the active subset of PCIs. For example, if the base station 105 - a indicates a new or different active PCI to the UE 115 - a (eg, via a message), the base station 105 - a may also update the mapping of the PCIs to corresponding CORESETs and / or search spaces.

[0073] In a second example, the base station 105-a and the UE 115-a may determine an association or mapping of a PCI to a CORESET or a search space or both based on an implicit rule, such as a rule defined (e.g., predefined) by a wireless communication standard. For example, the rule may be preconfigured or otherwise stored at the UE 115-a and the base station 105-a. The mapping indicated by the rule may include an association between one or more corresponding PCIs and each CORESET in a set of CORESETs used for communication between the UE 115-a and the base station 105-a, an association between one or more corresponding PCIs and each search space in a set of search spaces used for communication between the UE 115-a and the base station 105-a, or any combination thereof. In some cases, the mapping indicated by the rule may indicate an association or mapping between one or more corresponding PCIs and a pool index of each CORESET in the set of CORESETs, an association or mapping between one or more corresponding PCIs and a pool index of each search space in the set of search spaces, or any combination thereof. In some cases, the mapping may change with the active subset of the PCI.

[0074] In various examples, the base station 105-a may identify a mapping between one or more PCIs associated with a communication (e.g., an uplink message 220 or a downlink message 215). In some cases, for example, if the communication involves multiple TRPs or other communication entities, more than one PCI may be associated with the communication. The base station 105-a may send a grant 210 scheduling the communication via a CORESET associated with the one or more PCIs (e.g., in a corresponding search space), and the UE 115-a may receive the grant 210 via the CORESET. Based on receiving the grant 210 via the CORESET, the UE 115-a may identify a mapping between the CORESET (e.g., or an associated search space) and the one or more PCIs associated with the communication. Based on the one or more PCIs, for example, using one or more parameters associated with the one or more PCIs, the UE 115-a may receive a downlink message 215 scheduled by the grant 210, or may send an uplink message 220 scheduled by the grant 210. Similarly, the base station 105 - a may send a downlink message 215 scheduled by the grant 210 , or may receive an uplink message 220 scheduled by the grant 210 , using one or more parameters associated with one or more PCIs.

[0075] 3A, 3B, and 3C illustrate respective examples of mapping configurations 301, 302, and 303 that support mapping control resources to physical cells according to aspects of the present disclosure. In some examples, the mapping configurations 301, 302, and 303 may implement or be implemented by aspects of the wireless communication system 100 or 200. For example, a base station 105 (e.g., or one or more base stations 105) or a UE 115, or both, may use aspects of the mapping configurations 301, 302, or 303 to identify a mapping or association between one or more PCIs 310 and a CORESET 305 for transmitting a grant. The base station 105 and the UE 115 may represent examples of the base station 105 and the UE 115 described with reference to FIGS. 1 and 2, respectively. Although the examples described herein describe mapping one or more PCIs 310 to a CORESET 305, the same examples may be applied to mapping one or more PCIs 310 to a search space that includes a CORESET 305, mapping one or more PCIs 310 to a pool index of a CORESET 305, mapping one or more PCIs 310 to a pool index of a search space that includes a CORESET 305, or any combination thereof.

[0076] In a first example shown in FIG3A , the UE 115 or the base station 105 or both may identify a mapping or association between one or more PCIs 310 and a CORESET 305 for transmitting authorization based on a semi-static mapping that does not change when different PCIs 310 are activated or deactivated (e.g., for communication between the UE 115 and the base station 105). The base station 105 may configure the mapping and send it to the UE 115 (e.g., in a table, such as via an RRC configuration, a DCI message, or a MAC CE), where the mapping may indicate an association between one or more PCIs 310 and one or more CORESETs 305 configured for communication between the UE 115 and the base station 105. In some cases, the mapping may be active for the duration of the communication link between the base station 105 and the UE 115, or may be active until a new mapping is configured and sent. The base station 105 may also indicate to the UE 115 one or more active PCIs 310 corresponding to one or more corresponding active serving cells and / or TRPs for communication between the UE 115 and the base station 105. In one example, the PCIs 310-b, 310-c, and 310-d may be active, and the PCIs 310-a through 310-f may be included in a mapping sent from the base station 105 to the UE 115 (e.g., where the PCIs 310-a, 310-e, and 310-f may be inactive). The mapping may associate each of the PCIs 310-a through 310-f with a corresponding CORESET 305 from the CORESETs 305-a through 305-f.

[0077] The base station 105 may send a grant to schedule a communication (e.g., an uplink or downlink transmission) to the UE 115 using the CORESET 305 associated with the active PCI 310. For example, the base station 105 may send the grant via the CORESET 305-b. The UE 115 may receive the grant to schedule the communication (e.g., via the CORESET 305-b) and may determine that the PCI 310 associated with the scheduled communication is the PCI 310 associated with the CORESET 305-b via the mapping (e.g., PCI 310-b). The UE 115 and the base station 105 may communicate, for example, via a serving cell or TRP associated with the PCI 310-b using one or more parameters associated with the PCI 310-b. As described with reference to FIG. 2, the one or more parameters may include a TCI state, a bit scrambling technique for a shared channel carrying the communication, a rate matching mode for a shared channel carrying the communication, one or more beam parameters, or any combination thereof. In some cases, the base station 105 may change or modify the active PCI 310 , wherein the mapping may remain the same for the changed or new active PCI 310 .

[0078] In a second example shown in FIG3B , the UE 115 or the base station 105 or both may identify a mapping or association between one or more PCIs 310 and a CORESET 305 for transmitting authorization based on a dynamic mapping that may change when different PCIs 310 are activated or deactivated (e.g., for communication between the UE 115 and the base station 105). The base station 105 may configure the mapping and send it to the UE 115 via an RRC, DCI, or MAC CE message, wherein the mapping may indicate an association between one or more PCIs 310 and one or more CORESETs 305 configured for communication between the UE 115 and the base station 105. The base station 105 may also indicate to the UE 115 one or more active PCIs 310 corresponding to one or more corresponding active serving cells and / or TRPs for communication between the UE 115 and the base station 105.

[0079] In some cases, PCIs 310-a, 310-b, and 310-c may be active for a first duration and may be associated with CORESETs 305-a, 305-b, and 305-c, respectively, via a first mapping sent by the base station 105. The base station 105 may change the active PCIs 310 at the beginning of a second duration and may indicate, for example, to the UE 115 that PCIs 310-d, 310-e, and 310-f are active for communication (e.g., and PCIs 310-a, 310-b, and 310-c are no longer active). The base station 105 may also indicate a new mapping that may associate CORESETs 305-a, 305-b, and 305-c with PCIs 310-d, 310-e, and 310-f, respectively (e.g., in addition to other PCI 310 and CORESET 305 associations). In some cases, the base station 105 may send a new or updated mapping and an indication of the new or changed active PCI 310 to the UE 115 (e.g., within a message including or associated with an indication of a cell change or reselection). The base station 105 may send the updated mapping to the UE 115 via RRC signaling, DCI, or MAC CE.

[0080] The base station 105 may send a grant to schedule communications (e.g., uplink or downlink transmissions) to the UE 115 using the CORESET 305 associated with the active PCI 310. For example, the base station 105 may send the grant via the CORESET 305-b for the second duration. The UE 115 may receive the grant to schedule communications (e.g., via the CORESET 305-b) and may determine that the PCI 310 associated with the scheduled communications is the PCI 310 associated with the CORESET 305-b via the mapping (e.g., PCI 310-e). The UE 115 and the base station 105 may communicate, for example, via a serving cell or TRP associated with the PCI 310-e using one or more parameters associated with the PCI 310-e.

[0081] In a third example shown in FIG. 3C , the UE 115 or the base station 105 or both may identify a mapping or association between one or more PCIs 310 and a CORESET 305 for transmitting authorization. In some cases, the mapping may represent a dynamic mapping that may change when different PCIs 310 are activated or deactivated (e.g., for communication between the UE 115 and the base station 105). The base station 105 and the UE 115 may identify the mapping based on a predefined rule or a configured mapping (e.g., according to a wireless communication standard), wherein the mapping may indicate an association between one or more PCIs 310 and one or more CORESETs 305 configured for communication between the UE 115 and the base station 105. The base station 105 may indicate to the UE 115 one or more active PCIs 310 associated with one or more corresponding active serving cells and / or TRPs for communication between the UE 115 and the base station 105. The UE 115 and the base station 105 may identify the mapping based on the one or more active PCIs 310.

[0082] In one example, PCIs 310-a, 310-b, and 310-f may be inactive, while PCIs 310-c, 310-d, and 310-e may be active and may be associated with CORESETs 305-a, 305-b, and 305-c, respectively, via a mapping identified by UE 115 and by base station 105. For example, indices associated with CORESETs 305 from lowest to highest (e.g., from 1 to 3) may be (e.g., implicitly) mapped to active or selected PCIs 310 from lowest to highest PCI values. In some cases, the mapping may additionally or alternatively be based on mapping from lowest to highest CORESET indexes to highest to lowest PCI values, or may be based on another mapping rule. In some cases, the mapping or rule may provide a mapping rule for PCIs 310-a to 310-f. The base station 105 may change the active PCI 310, and the base station 105 and the UE 115 may identify a new CORESET 305 to PCI 310 mapping, for example, based on the active PCI 310. For example, the base station 105 and the UE 115 may continue to map the lowest to highest indexes associated with the same CORESET 305 to the new active or selected PCI 310 from lowest to highest PCI values.

[0083] The base station 105 may send a grant to schedule communications (e.g., uplink or downlink transmissions) to the UE 115 using the CORESET 305 associated with the active PCI 310. For example, the base station 105 may send the grant via the CORESET 305-a. The UE 115 may receive the grant to schedule communications (e.g., via the CORESET 305-a) and may determine that the PCI 310 associated with the scheduled communications is the PCI 310 associated with the CORESET 305-a via the mapping (e.g., PCI 310-c). The UE 115 and the base station 105 may communicate, for example, via a serving cell or TRP associated with the PCI 310-c using one or more parameters associated with the PCI 310-c.

[0084] 4 illustrates an example of a process flow 400 that supports mapping control resources to physical cells according to aspects of the present disclosure. In some examples, the process flow 400 may implement aspects of or be implemented by aspects of the wireless communication system 100 or 200. In some examples, the process flow 400 may also implement aspects of or be implemented by aspects of the mapping configuration 301, 302, or 303. For example, the process flow may include or be implemented by aspects of a base station 105-b and a UE 115-b, which may be examples of the base station 105 and the UE 115 described with reference to FIGS. 1-3.

[0085] In the following description of process flow 400, operations between UE 115-b and base station 105-b may be sent in a different order than shown, or operations performed by UE 115-b and base station 105-b may be performed in a different order or at a different time. For example, some operations may also be omitted from process flow 400, or other operations may be added to process flow 400. Although UE 115-b and base station 105-b are shown as performing the operations of process flow 400, some aspects of some operations may also be performed by one or more other wireless devices (e.g., operations performed by base station 105-b may be performed by one or more other base stations 105 communicating with UE 115-b).

[0086] At 405, in some cases, the base station 105-b may send to the UE 115-b an indication of a mapping of one or more corresponding PCIs to at least some (if not every) search spaces in a set of search spaces, at least some (if not every) CORESETs in a set of CORESETs, or any combination thereof. In some cases, the base station 105-b may send the indication of the mapping via RRC signaling, a DCI message, or a MAC CE, or any combination thereof. In some cases, the mapping indicated by the base station 105-b may be semi-static (e.g., a semi-static table) such that the mapping may not change when one or more active PCIs change (e.g., for communication between the base station 105-b and the UE 115-b). In some cases, the mapping indicated by the base station 105-b may be based on the one or more active PCIs such that if the one or more active PCIs are changed, the mapping may also change. In some cases, if the base station 105-b changes one or more active PCIs, the base station 105-b may configure and send additional or updated mappings to the UE 115-b.

[0087] At 410, the base station 105-b may identify an association between a CORESET of the search space and one or more PCIs for communicating with the UE 115-b. For example, as described herein, the base station 105-b may identify the association based on an indication of a mapping sent to the UE 115-b or based on a defined rule for mapping one or more PCIs to a CORESET (e.g., in a wireless communication standard or previously configured at a device such as the UE 115-b or the base station 105-b). In some cases, the one or more PCIs may be active PCIs for communication between the UE 115-b and the base station 105-b. In some cases, the one or more PCIs may be included in a set of PCIs, where the set of PCIs may include all candidate PCIs configured for a TRP of a serving cell, or may include candidate PCIs configured for a set of serving cells for L1 or L2 based cell selection, etc.

[0088] At 415, the base station 105-b may send a control message (e.g., a grant) to the UE 115-b that schedules communications (e.g., uplink or downlink messages) between the UE 115-b and the base station 105-b. The base station 105-b may send the control message via a CORESET of the search space and based on identifying the association. For example, the base station 105-b may identify one or more PCIs and corresponding TRPs and / or serving cells for communication, and may select a CORESET for transmission of the control message based on the association between the one or more PCIs and the CORESET.

[0089] At 420, the UE 115-b may identify an association between a CORESET of the search space and one or more PCIs. For example, based on receiving a control message via the CORESET, the UE 115-b may identify an association between the CORESET and the one or more PCIs. As described herein, the UE 115-b may identify the association based on an indication of a mapping received from the base station 105-b, or based on defined rules for mapping one or more PCIs to CORESETs (e.g., in a wireless communication standard or previously configured at a device such as the UE 115-b or the base station 105-b). The UE 115-b may also determine (e.g., based on identifying the association) the one or more PCIs and the corresponding TRP and / or serving cell to be used for receiving or transmitting scheduled communications with the base station 105-b.

[0090] At 425, based on the association between the CORESET and the one or more PCIs, the UE 115-b and the base station 105-b may communicate according to one or more parameters associated with the one or more PCIs. For example, the UE 115-b may send an uplink message scheduled by the control message, or the base station 105-b may send a downlink message scheduled by the control message. The one or more parameters may include a TCI state for the communication, a bit scrambling technique for a shared channel (e.g., a PDSCH or a PUSCH) carrying the communication, a rate matching mode for the shared channel carrying the communication, one or more beam parameters, or any combination thereof.

[0091] For example, the UE 115-b or the base station 105-b may determine (e.g., based on one or more configured communication parameters) that the processing of an uplink or downlink message will be performed using a default input based on the PCI. Thus, the UE 115-b and / or the base station 105-b may apply a bit scrambling technique associated with one or more PCIs on a shared channel carrying communications. Additionally or alternatively, each PCI and corresponding TRP or serving cell may be configured such that communications use different rate matching patterns for different PCIs. Thus, the UE 115-b or the base station 105-b (or both) may apply a rate matching pattern associated with one or more PCIs to a shared channel carrying communications. Additionally or alternatively, each PCI may correspond to a different TRP, and each TRP (e.g., and corresponding PCI) may be associated with a different transmit and / or receive beam. Thus, the UE 115-b and / or the base station 105-b may apply one or more beam parameters associated with one or more PCIs to communications.

[0092] 5 shows a block diagram 500 of a device 505 supporting mapping of control resources to physical cells according to aspects of the present disclosure. The device 505 may be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0093] The receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to mapping control resources to physical cells, etc.). The information may be passed to other components of the device 505. The receiver 510 may be an example of aspects of the transceiver 820 described with reference to FIG8. The receiver 510 may utilize a single antenna or a collection of antennas.

[0094] The communication manager 515 may receive a control message from the base station to schedule communication between the UE and the base station via one or more CORESETs of one or more search spaces; based on the received control message, identify an association between one or more CORESETs of one or more search spaces and one or more PCIs; and based on the association between the one or more CORESETs and the one or more PCIs, communicate with the base station according to one or more parameters associated with the one or more PCIs. The communication manager 515 may be an example of aspects of the communication manager 810 described herein.

[0095] The communication manager 515 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 515 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0096] The communication manager 515 or its subcomponents may be physically located in different locations, including being distributed so that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to aspects of the present disclosure, the communication manager 515 or its subcomponents may be separate and distinct components. In some examples, according to aspects of the present disclosure, the communication manager 515 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0097] The transmitter 520 can transmit signals generated by other components of the device 505. In some examples, the transmitter 520 can be co-located in a transceiver with the receiver 510. For example, the transmitter 520 can be an example of aspects of the transceiver 820 described with reference to FIG8. The transmitter 520 can utilize a single antenna or a collection of antennas.

[0098] In addition to other examples herein, the actions performed by the communication manager 515 can be implemented to achieve one or more potential advantages. For example, the communication manager 515 can improve communication quality and reduce communication overhead at a wireless device (e.g., UE 115) by supporting PCI identification for one or more communications between a UE and a base station. The identification of the PCI (e.g., and one or more associated communication parameters) can result in reduced overhead, as well as improved communication quality or throughput (or any combination thereof) due to the application of one or more associated communication parameters to the one or more communications. Therefore, the communication manager 515 can save power and increase battery life at a wireless device (e.g., UE 115) by strategically improving communication quality and reducing communication overhead at the wireless device (e.g., UE 115).

[0099] 6 shows a block diagram 600 of a device 605 supporting mapping of control resources to physical cells according to aspects of the present disclosure. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0100] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to mapping control resources to physical cells, etc.). The information may be passed to other components of the device 605. The receiver 610 may be an example of aspects of the transceiver 820 described with reference to FIG8. The receiver 610 may utilize a single antenna or a collection of antennas.

[0101] Communications manager 615 may be an example of aspects of communications manager 515 as described herein. Communications manager 615 may include control message receiving component 620, UE association identification component 625, and UE PCI communication component 630. Communications manager 615 may be an example of aspects of communications manager 810 as described herein.

[0102] The control message receiving component 620 may receive a control message from the base station to schedule communication between the UE and the base station via one or more CORESETs of the one or more search spaces. The UE association identifying component 625 may identify an association between one or more CORESETs of the one or more search spaces and one or more PCIs based on receiving the control message. The UE PCI communicating component 630 may communicate with the base station based on one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0103] The transmitter 635 can transmit signals generated by other components of the device 605. In some examples, the transmitter 635 can be co-located in a transceiver with the receiver 610. For example, the transmitter 635 can be an example of aspects of the transceiver 820 described with reference to FIG8. The transmitter 635 can utilize a single antenna or a collection of antennas.

[0104] A processor of the wireless device (e.g., controlling the receiver 610, the transmitter 635, or the transceiver 820 as described with reference to FIG. 8) can improve communication quality and can reduce communication overhead. The improved communication quality and reduced overhead can reduce power consumption (e.g., via the implementation of the system components described with reference to FIG. 7) compared to, for example, other systems and technologies that do not support certain PCI identification methods (which may reduce communication quality and increase power consumption). In addition, as described herein, the processor of the UE 115 can identify one or more aspects of the PCI to CORESET association (e.g., mapping). The processor of the wireless device can use the PCI to CORESET association to perform one or more actions that can result in improved communication quality and reduced overhead, as well as saving power and increasing battery life at the wireless device (e.g., by strategically supporting the identification of PCIs and associated communication parameters, which can improve communication quality), etc.

[0105] 7 shows a block diagram 700 of a communication manager 705 that supports mapping control resources to physical cells according to aspects of the present disclosure. The communication manager 705 can be an example of aspects of the communication manager 515, the communication manager 615, or the communication manager 810 described herein. The communication manager 705 can include a control message receiving component 710, a UE association identification component 715, a UE PCI communication component 720, a mapping receiving component 725, and a UE mapping identification component 730. Each of these can communicate with each other directly or indirectly (e.g., via one or more buses).

[0106] Control message receiving component 710 can receive a control message from a base station via one or more CORESETs of one or more search spaces that schedules communication between a UE and the base station.

[0107] UE association identification component 715 can identify an association between one or more CORESETs of one or more search spaces and one or more PCIs based on receiving the control message.In some cases, the one or more PCIs are indicated via physical layer signaling, MAC signaling, or any combination thereof.

[0108] The UE PCI communication component 720 can communicate with the base station based on one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. In some cases, the one or more parameters associated with the one or more PCIs include a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof. In some examples, the UE PCI communication component 720 can determine that the bit scrambling technique associated with the one or more PCIs includes an input of a shared channel (e.g., a PDSCH or a PUSCH) used for communication. In some examples, the UE PCI communication component 720 can apply the bit scrambling technique to the shared channel based on determining that the bit scrambling technique associated with the one or more PCIs includes an input.

[0109] In some examples, the UE PCI communication component 720 can apply a rate matching pattern associated with one or more PCIs to a shared channel carrying communications, wherein each of a set of PCIs including the one or more PCIs is associated with a different rate matching pattern. In some examples, the UE PCI communication component 720 can communicate with a base station via a subset of a set of TRPs of a serving cell, each TRP being associated with a corresponding PCI, wherein the one or more PCIs correspond to the one or more TRPs of the subset. In some examples, the UE PCI communication component 720 can communicate with a base station via a subset of a set of serving cells, each serving cell being associated with a corresponding PCI, wherein the one or more PCIs correspond to the one or more serving cells of the subset.

[0110] The mapping receiving component 725 may receive an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying an association between the one or more CORESETs and the one or more PCIs is based on the indication of the mapping.

[0111] In some examples, the mapping receiving component 725 can receive an indication of a mapping of one or more corresponding PCIs to a corresponding pool index for each search space in the set of search spaces, a corresponding pool index for each CORESET in the set of CORESETs, or any combination thereof.

[0112] In some examples, the mapping receiving component 725 can receive from the base station an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the mapping applies to the first set of active PCIs and the second set of active PCIs.

[0113] In some examples, mapping receiving component 725 may receive from the base station an indication of a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof.

[0114] In some examples, the mapping receiving component 725 may receive an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the second mapping is applied to the first set of active PCIs and the mapping is applied to the second set of active PCIs.

[0115] The UE mapping identification component 730 may identify a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, the set of CORESETs includes the one or more CORESETs, and wherein identifying an association between the one or more CORESETs and the one or more PCIs is based on the mapping. In some examples, the UE mapping identification component 730 may identify a mapping of one or more corresponding PCIs to a corresponding pool index for each search space in the set of search spaces, a corresponding pool index for each CORESET in the set of CORESETs, or any combination thereof.

[0116] In some examples, the UE mapping identification component 730 can identify a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof. In some examples, the UE mapping identification component 730 can receive an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including one or more PCIs, wherein the second mapping applies to the first set of active PCIs and the mapping applies to the second set of active PCIs. In some examples, the UE mapping identification component 730 can map one or more CORESET indexes, one or more CORESET pool indexes, or any combination thereof to the one or more active PCIs according to an order based on the rule.

[0117] In some examples, the UE mapping identification component 730 may pair one or more corresponding CORESET indexes, one or more corresponding CORESET pool indexes, or any combination thereof in an order from lowest index to highest index with one or more corresponding active PCIs in an order from lowest value to highest value.

[0118] FIG8 shows a diagram of a system 800 including a device 805 that supports mapping control resources to physical cells according to various aspects of the present disclosure. The device 805 may be an example of a device 505, a device 605, or a UE 115 as described herein or include components thereof. The device 805 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may communicate electronically via one or more buses (e.g., a bus 845).

[0119] The communication manager 810 can receive a control message for scheduling communication between the UE and the base station via one or more CORESETs of one or more search spaces from the base station; identify the association between one or more CORESETs of one or more search spaces and one or more PCIs based on the received control message; and communicate with the base station according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0120] I / O controller 815 can manage the input and output signals of device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent physical connection or port to external peripheral devices. In some cases, I / O controller 815 can utilize operating system, such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX® or another known operating system. In other cases, I / O controller 815 can represent modem, keyboard, mouse, touch screen or similar device or interact with them. In some cases, I / O controller 815 can be implemented as a part of processor. In some cases, users can interact with device 805 via I / O controller 815 or via hardware components controlled by I / O controller 815.

[0121] As described above, the transceiver 820 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, the transceiver 820 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 820 can also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and demodulate the packets received from the antenna.

[0122] In some cases, a wireless device may include a single antenna 825. However, in some cases, a device may have more than one antenna 825, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0123] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed, cause the processor to perform various functions described herein. In some cases, the memory 830 may contain a basic I / O system (BIOS), etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0124] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., a function or task that supports mapping control resources to physical cells).

[0125] The code 835 may include instructions to implement various aspects of the present disclosure, including instructions to support wireless communications. The code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 835 may not be directly executed by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0126] 9 shows a block diagram 900 of a device 905 supporting mapping of control resources to physical cells according to aspects of the present disclosure. The device 905 may be an example of aspects of the base station 105 as described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0127] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to mapping control resources to physical cells, etc.). The information may be passed to other components of the device 905. The receiver 910 may be an example of aspects of the transceiver 1220 described with reference to FIG. 12. The receiver 910 may utilize a single antenna or a set of antennas.

[0128] The communication manager 915 may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE; send a control message to the UE scheduling communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The communication manager 915 may be an example of aspects of the communication manager 1210 described herein.

[0129] The communication manager 915 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 915 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA or other programmable logic device designed to perform the functions described in this disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0130] The communication manager 915 or its subcomponents may be physically located in different locations, including being distributed so that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 915 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 915 or its subcomponents may be combined with one or more other hardware components, including but not limited to I / O components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0131] The transmitter 920 can transmit signals generated by other components of the device 905. In some examples, the transmitter 920 can be co-located in a transceiver with the receiver 910. For example, the transmitter 920 can be an example of aspects of the transceiver 1220 described with reference to FIG. The transmitter 920 can utilize a single antenna or a collection of antennas.

[0132] 10 shows a block diagram 1000 of a device 1005 supporting mapping of control resources to physical cells according to aspects of the present disclosure. The device 1005 may be an example of aspects of the device 905 or base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1035. The device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0133] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to mapping control resources to physical cells, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be an example of aspects of the transceiver 1220 described with reference to FIG. 12. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0134] Communications manager 1015 may be an example of aspects of communications manager 915 as described herein. Communications manager 1015 may include base station association identification component 1020, control message sending component 1025, and base station PCI communication component 1030. Communications manager 1015 may be an example of aspects of communications manager 1210 as described herein.

[0135] The base station association identification component 1020 can identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE. The control message sending component 1025 can send a control message to the UE to schedule communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on the identified association. The base station PCI communication component 1030 can communicate with the UE based on one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0136] The transmitter 1035 can transmit signals generated by other components of the device 1005. In some examples, the transmitter 1035 can be co-located in a transceiver with the receiver 1010. For example, the transmitter 1035 can be an example of aspects of the transceiver 1220 described with reference to FIG12. The transmitter 1035 can utilize a single antenna or a collection of antennas.

[0137] 11 shows a block diagram 1100 of a communication manager 1105 that supports mapping control resources to physical cells according to aspects of the present disclosure. The communication manager 1105 can be an example of aspects of the communication manager 915, the communication manager 1015, or the communication manager 1210 described herein. The communication manager 1105 can include a base station association identification component 1110, a control message sending component 1115, a base station PCI communication component 1120, a mapping sending component 1125, and a base station mapping identification component 1130. Each of these can communicate with each other directly or indirectly (e.g., via one or more buses).

[0138] The base station association identification component 1110 can identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE. In some cases, the one or more PCIs are indicated via physical layer signaling, MAC signaling, or any combination thereof.

[0139] The control message sending component 1115 can send a control message to the UE to schedule communication between the UE and the base station via one or more CORESETs of the one or more search spaces and based on the identified association.

[0140] The base station PCI communication component 1120 can communicate with the UE based on one or more parameters associated with one or more PCIs based on the association between one or more CORESETs and one or more PCIs. In some cases, the one or more parameters associated with the one or more PCIs include a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof. In some examples, the base station PCI communication component 1120 can determine that the bit scrambling technique associated with the one or more PCIs includes an input of a shared channel (e.g., a PDSCH or a PUSCH) used for communication. In some examples, the base station PCI communication component 1120 can apply the bit scrambling technique to the shared channel based on determining that the bit scrambling technique associated with the one or more PCIs includes an input.

[0141] In some examples, the base station PCI communication component 1120 can apply a rate matching pattern associated with one or more PCIs to a shared channel carrying communications, wherein each of a set of PCIs including the one or more PCIs is associated with a different rate matching pattern. In some examples, the base station PCI communication component 1120 can communicate with the UE via a subset of a set of TRPs of a serving cell, each TRP being associated with a corresponding PCI, wherein the one or more PCIs correspond to the one or more TRPs of the subset. In some examples, the base station PCI communication component 1120 can communicate with the UE via a subset of a set of serving cells, each serving cell being associated with a corresponding PCI, wherein the one or more PCIs correspond to the one or more serving cells of the subset.

[0142] The mapping sending component 1125 can send an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the CORESET, and wherein an association between the one or more CORESETs and the one or more PCIs is based on the mapping. In some examples, the mapping sending component 1125 can send an indication of a mapping of one or more corresponding PCIs to a corresponding pool index for each search space in the set of search spaces, a corresponding pool index for each CORESET in the set of CORESETs, or any combination thereof.

[0143] In some examples, the mapping transmission component 1125 can send an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including one or more PCIs to the UE, wherein the mapping applies to the first set of active PCIs and the second set of active PCIs. In some examples, the mapping transmission component 1125 can send an indication of a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof to the UE. In some examples, the mapping transmission component 1125 can send an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including one or more PCIs, wherein the second mapping applies to the first set of active PCIs, and the mapping applies to the second set of active PCIs.

[0144] The base station mapping identification component 1130 may identify a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying an association between the one or more CORESETs and the one or more PCIs is based on the mapping. In some examples, the base station mapping identification component 1130 may identify a mapping of one or more corresponding PCIs to a corresponding pool index for each search space in the set of search spaces, a corresponding pool index for each CORESET in the set of CORESETs, or any combination thereof.

[0145] In some examples, the base station mapping identification component 1130 may identify a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof. In some examples, the base station mapping identification component 1130 may send an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including one or more PCIs, wherein the second mapping is applied to the first set of active PCIs and the mapping is applied to the second set of active PCIs. In some examples, the base station mapping identification component 1130 may map one or more CORESET indexes, one or more CORESET pool indexes, or any combination thereof to one or more active PCIs according to a rule-based order. In some examples, the base station mapping identification component 1130 may pair one or more corresponding CORESET indexes, one or more corresponding CORESET pool indexes, or any combination thereof in an order from lowest index to highest index with one or more corresponding active PCIs in an order from lowest value to highest value.

[0146] FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports mapping control resources to physical cells according to various aspects of the present disclosure. The device 1205 may be an example of a device 905, a device 1005, or a base station 105 as described herein or include components thereof. The device 1205 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1210, a network communication manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communication manager 1245. These components may communicate electronically via one or more buses (e.g., a bus 1250).

[0147] The communication manager 1210 can identify the association between one or more CORESETs of one or more search spaces and one or more PCIs used to communicate with the UE; send a control message to the UE to schedule communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based on identifying the association; and communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs.

[0148] The network communications manager 1215 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1215 may manage the transmission of data communications for client devices such as one or more UEs 115.

[0149] As described above, transceiver 1220 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1220 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1220 can also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0150] In some cases, a wireless device may include a single antenna 1225. However, in some cases, a device may have more than one antenna 1225, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0151] The memory 1230 may include RAM, ROM, or a combination thereof. The memory 1230 may store computer readable code 1235 including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some cases, the memory 1230 may include a BIOS, etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0152] Processor 1240 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks that support mapping control resources to physical cells).

[0153] The inter-site communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0154] The code 1235 may include instructions to implement various aspects of the present disclosure, including instructions to support wireless communications. The code 1235 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1235 may not be directly executed by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0155] FIG. 13 shows a flow chart of a method 1300 for supporting mapping control resources to physical cells according to various aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1300 may be performed by a communication manager described with reference to FIGS. 5 to 8. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0156] At 1305, the UE may receive a control message from the base station scheduling communications between the UE and the base station via one or more CORESETs of one or more search spaces. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be performed by the control message receiving component described with reference to FIGS. 5 to 8.

[0157] At 1310, the UE may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs based on the received control message. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be performed by the UE association identification component described with reference to FIGS. 5 to 8.

[0158] At 1315, the UE may communicate with the base station according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be performed by the UE PCI communication components described with reference to FIGS. 5 to 8.

[0159] FIG. 14 shows a flow chart of a method 1400 for supporting mapping control resources to physical cells according to various aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1400 may be performed by a communication manager described with reference to FIGS. 5 to 8. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0160] At 1405, the UE may receive an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed by a mapping receiving component described with reference to FIGS. 5 to 8.

[0161] At 1410, the UE may receive a control message from a base station scheduling communications between the UE and the base station via one or more CORESETs of one or more search spaces, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed by a control message receiving component described with reference to FIGS. 5 to 8.

[0162] At 1415, the UE may identify an association between one or more CORESETs and one or more PCIs of one or more search spaces based on the received control message, wherein identifying the association between the one or more CORESETs and the one or more PCIs is based on an indication of the mapping. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed by the UE association identification component described with reference to FIGS. 5 to 8.

[0163] At 1420, the UE may communicate with the base station according to one or more parameters associated with one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be performed by the UE PCI communication components described with reference to FIGS. 5 to 8.

[0164] FIG. 15 shows a flow chart of a method 1500 for supporting mapping of control resources to physical cells according to various aspects of the present disclosure. The operations of the method 1500 may be implemented by the UE 115 or its components as described herein. For example, the operations of the method 1500 may be performed by a communication manager described with reference to FIG. 5 to FIG. 8. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0165] At 1505, the UE may receive a control message from the base station scheduling communications between the UE and the base station via one or more CORESETs of one or more search spaces. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed by the control message receiving component described with reference to FIGS. 5 to 8.

[0166] At 1510, the UE may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs based on the received control message. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed by the UE association identification component described with reference to FIGS. 5 to 8.

[0167] At 1515, the UE may identify a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying an association between the one or more CORESETs and the one or more PCIs is based on the mapping. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed by a UE mapping identification component described with reference to FIGS. 5 to 8.

[0168] At 1520, the UE may communicate with the base station according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed by the UE PCI communication component described with reference to FIGS. 5 to 8.

[0169] FIG. 16 shows a flow chart of a method 1600 for supporting mapping control resources to physical cells according to various aspects of the present disclosure. The operations of the method 1600 may be implemented by a base station 105 or a component thereof as described herein. For example, the operations of the method 1600 may be performed by a communication manager, as described with reference to FIGS. 9 to 12. In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0170] At 1605, the base station may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed by the base station association identification component described with reference to FIGS. 9 to 12.

[0171] At 1610, the base station may send a control message to the UE to schedule communication between the UE and the base station via one or more CORESETs of the one or more search spaces and based on identifying the association. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed by the control message sending component described with reference to FIGS. 9 to 12.

[0172] At 1615, the base station may communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed by the base station PCI communication component described with reference to FIGS. 9 to 12.

[0173] FIG. 17 shows a flow chart of a method 1700 for supporting mapping control resources to physical cells according to aspects of the present disclosure. The operations of the method 1700 may be implemented by a base station 105 or a component thereof as described herein. For example, the operations of the method 1700 may be performed by a communication manager, as described with reference to FIGS. 9 to 12. In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0174] At 1705, the base station may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed by the base station association identification component described with reference to FIGS. 9 to 12.

[0175] At 1710, the base station may send an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein an association between the one or more CORESETs and the one or more PCIs is based on the mapping. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed by a mapping sending component as described with reference to FIGS. 9 to 12.

[0176] At 1715, the base station may send a control message to the UE to schedule communication between the UE and the base station via one or more CORESETs of the one or more search spaces and based on identifying the association. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed by the control message sending component described with reference to FIGS. 9 to 12.

[0177] At 1720, the base station may communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be performed by the base station PCI communication component described with reference to FIGS. 9 to 12.

[0178] FIG. 18 shows a flow chart of a method 1800 for supporting mapping control resources to physical cells according to various aspects of the present disclosure. The operations of the method 1800 may be implemented by a base station 105 or a component thereof as described herein. For example, the operations of the method 1800 may be performed by a communication manager, as described with reference to FIGS. 9 to 12. In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0179] At 1805, the base station may identify an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with the UE. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed by the base station association identification component described with reference to FIGS. 9 to 12.

[0180] At 1810, the base station may identify a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying an association between the one or more CORESETs and the one or more PCIs is based on the mapping. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed by a base station mapping identification component as described with reference to FIGS. 9 to 12.

[0181] At 1815, the base station may send a control message to the UE to schedule communication between the UE and the base station via one or more CORESETs of the one or more search spaces and based on identifying the association. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed by the control message sending component described with reference to FIGS. 9 to 12.

[0182] At 1820, the base station may communicate with the UE according to one or more parameters associated with the one or more PCIs based on the association between the one or more CORESETs and the one or more PCIs. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by the base station PCI communication component described with reference to FIGS. 9 to 12.

[0183] A summary of various aspects of the disclosure is provided below.

[0184] Aspect 1: A method for wireless communication at a UE, comprising: receiving a control message from a base station via one or more CORESETs of one or more search spaces that schedules communication between the UE and the base station; identifying an association between the one or more CORESETs of the one or more search spaces and one or more PCIs based at least in part on receiving the control message; and communicating with the base station according to one or more parameters associated with the one or more PCIs based at least in part on the association between the one or more CORESETs and the one or more PCIs.

[0185] Aspect 2: The method according to Aspect 1 also includes: receiving an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying the association between the one or more CORESETs and the one or more PCIs is at least partially based on the indication of the mapping.

[0186] Aspect 3: A method according to Aspect 2, wherein receiving the indication of the mapping includes: receiving an indication of a mapping of the one or more corresponding PCIs to the corresponding pool index of each search space in the set of search spaces, the corresponding pool index of each CORESET in the set of CORESETs, or any combination thereof.

[0187] Aspect 4: The method according to any one of Aspects 2 to 3 further includes: receiving an indication from the base station of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the mapping is applied to the first set of active PCIs and the second set of active PCIs.

[0188] Aspect 5: The method according to any one of Aspects 2 to 4 further includes: receiving an indication of a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof from the base station; and receiving an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the second mapping is applied to the first set of active PCIs, and the mapping is applied to the second set of active PCIs.

[0189] Aspect 6: The method according to Aspect 1 also includes: identifying a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, the set of CORESETs includes the one or more CORESETs, and wherein identifying the association between the one or more CORESETs and the one or more PCIs is at least partially based on the mapping.

[0190] Aspect 7: A method according to Aspect 6, wherein identifying the rule includes: identifying a mapping of the one or more corresponding PCIs to the corresponding pool index of each search space in the set of search spaces, the corresponding pool index of each CORESET in the set of CORESETs, or any combination thereof.

[0191] Aspect 8: The method according to any one of Aspects 6 to 7 further includes: identifying a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof; and receiving an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the second mapping is applied to the first set of active PCIs, and the mapping is applied to the second set of active PCIs.

[0192] Aspect 9: A method according to Aspect 8, wherein identifying the association between the one or more CORESETs and the one or more PCIs includes: mapping one or more CORESET indexes, one or more CORESET pool indexes, or any combination thereof to the one or more active PCIs according to an order based at least in part on the rule.

[0193] Aspect 10: A method according to Aspect 9, wherein mapping the one or more CORESET indexes, the one or more CORESET pool indexes, or any combination thereof to the one or more active PCIs according to the order includes: pairing one or more corresponding CORESET indexes, one or more corresponding CORESET pool indexes, or any combination thereof in an order from lowest index to highest index with one or more corresponding active PCIs in an order from lowest value to highest value.

[0194] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the one or more parameters associated with the one or more PCIs include a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof.

[0195] Aspect 12: A method according to Aspect 11, wherein communicating with the base station based on the one or more parameters associated with the one or more PCIs includes: determining that the bit scrambling technology associated with the one or more PCIs includes an input of a shared channel for the communication; and applying the bit scrambling technology to the shared channel based at least in part on determining that the bit scrambling technology associated with the one or more PCIs includes the input.

[0196] Aspect 13: A method according to any one of Aspects 11 to 12, wherein communicating with the base station based on the one or more parameters associated with the one or more PCIs includes: applying the rate matching mode associated with the one or more PCIs to a shared channel carrying the communication, wherein each of a group of PCIs including the one or more PCIs is associated with a different rate matching mode.

[0197] Aspect 14: The method according to any one of Aspects 1 to 13 includes: communicating with the base station via a subset of multiple TRPs of the service cell, each TRP being associated with a corresponding PCI, wherein the one or more PCIs correspond to one or more TRPs of the subset.

[0198] Aspect 15: The method according to any one of Aspects 1 to 14 comprises: communicating with the base station via a subset of multiple service cells, each service cell being associated with a corresponding PCI, wherein the one or more PCIs correspond to one or more service cells of the subset.

[0199] Aspect 16: The method according to any one of aspects 1 to 15, wherein the one or more PCIs are indicated via physical layer signaling, MAC signaling, or any combination thereof.

[0200] Aspect 17: A method for wireless communication at a base station, comprising: identifying an association between one or more CORESETs of one or more search spaces and one or more PCIs for communicating with a UE; sending a control message to the UE for scheduling communication between the UE and the base station via the one or more CORESETs of the one or more search spaces and based at least in part on identifying the association; and communicating with the UE according to one or more parameters associated with the one or more PCIs based at least in part on the association between the one or more CORESETs and the one or more PCIs.

[0201] Aspect 18: The method according to Aspect 17 also includes: sending an indication of a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein the association between the one or more CORESETs and the one or more PCIs is at least partially based on the mapping.

[0202] Aspect 19: A method according to Aspect 18, wherein sending the indication of the mapping includes: sending an indication of a mapping of the one or more corresponding PCIs to the corresponding pool index of each search space in the set of search spaces, the corresponding pool index of each CORESET in the set of CORESETs, or any combination thereof.

[0203] Aspect 20: The method according to any one of Aspects 18 to 19 further includes: sending an indication to the UE of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the mapping is applied to the first set of active PCIs and the second set of active PCIs.

[0204] Aspect 21: The method according to any one of Aspects 18 to 20 further includes: sending an indication of a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof to the UE; and sending an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the second mapping is applied to the first set of active PCIs, and the mapping is applied to the second set of active PCIs.

[0205] Aspect 22: The method according to Aspect 17 also includes: identifying a rule indicating a mapping of one or more corresponding PCIs to each search space in a set of search spaces, each CORESET in a set of CORESETs, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of CORESETs includes the one or more CORESETs, and wherein identifying the association between the one or more CORESETs and the one or more PCIs is at least partially based on the mapping.

[0206] Aspect 23: A method according to Aspect 22, wherein identifying the rule includes: identifying a mapping of the one or more corresponding PCIs to the corresponding pool index of each search space in the set of search spaces, the corresponding pool index of each CORESET in the set of CORESETs, or any combination thereof.

[0207] Aspect 24: The method according to any one of Aspects 22 to 23 further includes: identifying a second mapping of one or more corresponding PCIs to each search space in the set of search spaces, each CORESET in the set of CORESETs, or any combination thereof; and sending an indication of a change of one or more active PCIs from a first set of active PCIs to a second set of active PCIs including the one or more PCIs, wherein the second mapping is applied to the first set of active PCIs, and the mapping is applied to the second set of active PCIs.

[0208] Aspect 25: A method according to Aspect 24, wherein identifying the association between the one or more CORESETs and the one or more PCIs includes: mapping one or more CORESET indexes, one or more CORESET pool indexes, or any combination thereof to the one or more active PCIs according to an order based at least in part on the rule.

[0209] Aspect 26: A method according to Aspect 25, wherein mapping the one or more CORESET indexes, the one or more CORESET pool indexes, or any combination thereof to the one or more active PCIs according to the order includes: pairing one or more corresponding CORESET indexes, one or more corresponding CORESET pool indexes, or any combination thereof in an order from lowest index to highest index with one or more corresponding active PCIs in an order from lowest value to highest value.

[0210] Aspect 27: A method according to any one of Aspects 17 to 26, wherein the one or more parameters associated with the one or more PCIs include a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof.

[0211] Aspect 28: A method according to Aspect 27, wherein communicating with the UE based on the one or more parameters associated with the one or more PCIs includes: determining that the bit scrambling technology associated with the one or more PCIs includes an input of a shared channel for the communication; and applying the bit scrambling technology to the shared channel based at least in part on determining that the bit scrambling technology associated with the one or more PCIs includes the input.

[0212] Aspect 29: A method according to any one of Aspects 27 to 28, wherein communicating with the UE based on the one or more parameters associated with the one or more PCIs includes: applying the rate matching mode associated with the one or more PCIs to a shared channel carrying the communication, wherein each of a group of PCIs including the one or more PCIs is associated with a different rate matching mode.

[0213] Aspect 30: The method according to any one of Aspects 17 to 29 includes: communicating with the UE via a subset of multiple TRPs of the serving cell, each TRP being associated with a corresponding PCI, wherein the one or more PCIs correspond to one or more TRPs of the subset.

[0214] Aspect 31: The method according to any one of Aspects 17 to 30 includes: communicating with the UE via a subset of multiple service cells, each service cell being associated with a corresponding PCI, wherein the one or more PCIs correspond to one or more service cells of the subset.

[0215] Aspect 32: The method according to any one of aspects 17 to 31, wherein the one or more PCIs are indicated via physical layer signaling, MAC signaling, or any combination thereof.

[0216] Aspect 33: A device for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to enable the device to perform any of the methods described in Aspects 1 to 16.

[0217] Aspect 34: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of Aspects 1 to 16.

[0218] Aspect 35: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 16.

[0219] Aspect 36: A device for wireless communication at a base station, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to enable the device to perform any of the methods described in Aspects 17 to 32.

[0220] Aspect 37: An apparatus for wireless communication at a base station, comprising at least one component for performing the method of any one of Aspects 17 to 32.

[0221] Aspect 38: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 17 to 32.

[0222] It should be noted that the methods described herein describe possible implementations, where operations and steps may be rearranged or otherwise modified, and that other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0223] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable to areas beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0224] The information and signals described herein may be represented using a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, symbols, and chips described above may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0225] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., 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).

[0226] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be located in different physical locations, including being distributed so that parts of the functions are implemented in different physical locations.

[0227] Computer-readable media include non-transitory computer storage media and communication media, and communication media include any media that facilitates the transfer of computer programs from one place to another. Non-transitory storage media can be any available media that can be accessed by general or special computers. As an example and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other non-transitory media that can be used to carry or store desired program code components in the form of instructions or data structures and can be accessed by general or special computers or general or special processors. Disks and optical discs used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and blue-ray discs, where the discs usually reproduce data magnetically, and the discs reproduce data optically with lasers. The above combination is also included in the scope of computer-readable media.

[0228] As used herein, including in the claims, "or" as used in a list of items (e.g., a list of items beginning with "at least one" or "one or more") means an inclusive list, for example, 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). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0229] In the drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between the similar components. If only the first reference number is used in the specification, the description applies to any one of the similar components having the same first reference number, regardless of the second or other subsequent reference numbers.

[0230] Example configurations are described herein in conjunction with the accompanying drawings and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "better than other examples." In order to provide an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be implemented without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0231] The description herein enables one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. 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 at a user equipment (UE), comprising: receiving, from a base station via one or more control resource sets of one or more search spaces, a control message scheduling communication between the UE and the base station; identifying, based at least in part on receiving the control message, an association between the one or more control resource sets of the one or more search spaces and one or more physical cell identifiers; as well as Based at least in part on the association between the one or more sets of control resources and the one or more physical cell identifiers, communicating with the base station in accordance with one or more parameters associated with the one or more physical cell identifiers.

2. The method according to claim 1, further comprising: Receive an indication of a mapping of one or more corresponding physical cell identifiers to each search space in a set of search spaces, each control resource set in a set of control resource sets, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of control resource sets includes the one or more control resource sets, and wherein identifying the association between the one or more control resource sets and the one or more physical cell identifiers is based at least in part on the indication of the mapping.

3. The method of claim 2, wherein receiving the indication of the mapping comprises: An indication of a mapping of the one or more respective physical cell identifiers to a respective pool index for each of the set of search spaces, a respective pool index for each of the set of control resource sets, or any combination thereof is received.

4. The method according to claim 2, further comprising: An indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers including the one or more physical cell identifiers is received from the base station, wherein the mapping applies to the first set of active physical cell identifiers and the second set of active physical cell identifiers.

5. The method according to claim 2, further comprising: receiving, from the base station, an indication of a second mapping of one or more respective physical cell identifiers to each search space in the set of search spaces, each control resource set in the set of control resource sets, or any combination thereof; as well as Receiving an indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers including the one or more physical cell identifiers, wherein the second mapping is applied to the first set of active physical cell identifiers and the mapping is applied to the second set of active physical cell identifiers.

6. The method according to claim 1, further comprising: Identify a rule indicating a mapping of one or more corresponding physical cell identifiers to each search space in a set of search spaces, each control resource set in a set of control resource sets, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of control resource sets includes the one or more control resource sets, and wherein identifying the association between the one or more control resource sets and the one or more physical cell identifiers is based at least in part on the mapping.

7. The method of claim 6, wherein identifying the rule comprises: A mapping of the one or more respective physical cell identifiers to a respective pool index for each of the set of search spaces, a respective pool index for each of the set of control resource sets, or any combination thereof is identified.

8. The method according to claim 6, further comprising: identifying a second mapping of one or more respective physical cell identifiers to each search space in the set of search spaces, each control resource set in the set of control resource sets, or any combination thereof; as well as Receiving an indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers including the one or more physical cell identifiers, wherein the second mapping is applied to the first set of active physical cell identifiers and the mapping is applied to the second set of active physical cell identifiers.

9. The method of claim 8, wherein identifying the association between the one or more control resource sets and the one or more physical cell identifiers comprises: One or more control resource set indices, one or more control resource set pool indices, or any combination thereof are mapped to the one or more active physical cell identifiers according to an order based at least in part on the rule.

10. The method of claim 9, wherein mapping the one or more control resource set indices, the one or more control resource set pool indices, or any combination thereof to the one or more active physical cell identifiers according to the order comprises: One or more corresponding control resource set indices, one or more corresponding control resource set pool indices, or any combination thereof in order from lowest index to highest index are paired with one or more corresponding active physical cell identifiers in order from lowest value to highest value.

11. The method of claim 1 , wherein the one or more parameters associated with the one or more physical cell identifiers include a bit scrambling technique, a rate matching mode, one or more beam parameters, or any combination thereof.

12. The method of claim 11, wherein communicating with the base station based on the one or more parameters associated with the one or more physical cell identifiers comprises: determining that the bit scrambling technique associated with the one or more physical cell identifiers includes input of a shared channel for the communications; as well as Based at least in part on determining that the bit scrambling technique associated with the one or more physical cell identifiers includes the input, applying the bit scrambling technique to the shared channel.

13. The method of claim 11 , wherein communicating with the base station based on the one or more parameters associated with the one or more physical cell identifiers comprises: The rate matching pattern associated with the one or more physical cell identifiers is applied to a shared channel carrying the communication, wherein each of a set of physical cell identifiers including the one or more physical cell identifiers is associated with a different rate matching pattern.

14. The method according to claim 1, comprising: The base station is communicated with via a subset of a plurality of transmit and receive points of a serving cell, each transmit and receive point being associated with a respective physical cell identifier, wherein the one or more physical cell identifiers correspond to the one or more transmit and receive points of the subset.

15. The method according to claim 1, comprising: Communicating with the base station via a subset of a plurality of serving cells, each serving cell being associated with a respective physical cell identifier, wherein the one or more physical cell identifiers correspond to one or more serving cells of the subset.

16. A method for wireless communication at a base station, comprising: identifying an association between one or more control resource sets of one or more search spaces and one or more physical cell identifiers for communicating with a user equipment (UE); sending, to the UE, a control message scheduling communication between the UE and the base station via the one or more sets of control resources of the one or more search spaces and based at least in part on identifying the association; as well as Based at least in part on the association between the one or more sets of control resources and the one or more physical cell identifiers, communicating with the UE in accordance with one or more parameters associated with the one or more physical cell identifiers.

17. The method according to claim 16, further comprising: Sending an indication of a mapping of one or more corresponding physical cell identifiers to each search space in a set of search spaces, each control resource set in a set of control resource sets, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of control resource sets includes the one or more control resource sets, and wherein the association between the one or more control resource sets and the one or more physical cell identifiers is based at least in part on the mapping.

18. The method of claim 17, wherein sending the indication of the mapping comprises: An indication of a mapping of the one or more respective physical cell identifiers to a respective pool index for each of the set of search spaces, a respective pool index for each of the set of control resource sets, or any combination thereof is transmitted.

19. The method according to claim 17, further comprising: An indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers including the one or more physical cell identifiers is sent to the UE, wherein the mapping is applied to the first set of active physical cell identifiers and the second set of active physical cell identifiers.

20. The method of claim 17, further comprising: sending, to the UE, an indication of a second mapping of one or more corresponding physical cell identifiers to each search space in the set of search spaces, each control resource set in the set of control resource sets, or any combination thereof; as well as Sending an indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers comprising the one or more physical cell identifiers, wherein the second mapping is applied to the first set of active physical cell identifiers and the mapping is applied to the second set of active physical cell identifiers.

21. The method of claim 16, further comprising: Identify a rule indicating a mapping of one or more corresponding physical cell identifiers to each search space in a set of search spaces, each control resource set in a set of control resource sets, or any combination thereof, wherein the set of search spaces includes the one or more search spaces, and the set of control resource sets includes the one or more control resource sets, and wherein identifying the association between the one or more control resource sets and the one or more physical cell identifiers is based at least in part on the mapping.

22. The method of claim 21 , wherein identifying the rule comprises: A mapping of the one or more respective physical cell identifiers to a respective pool index for each of the set of search spaces, a respective pool index for each of the set of control resource sets, or any combination thereof is identified.

23. The method according to claim 21, further comprising: identifying a second mapping of one or more respective physical cell identifiers to each search space in the set of search spaces, each control resource set in the set of control resource sets, or any combination thereof; as well as Sending an indication of a change of one or more active physical cell identifiers from a first set of active physical cell identifiers to a second set of active physical cell identifiers comprising the one or more physical cell identifiers, wherein the second mapping is applied to the first set of active physical cell identifiers and the mapping is applied to the second set of active physical cell identifiers.

24. The method of claim 23, wherein identifying the association between the one or more control resource sets and the one or more physical cell identifiers comprises: One or more control resource set indices, one or more control resource set pool indices, or any combination thereof are mapped to the one or more active physical cell identifiers according to an order based at least in part on the rule.

25. The method of aspect 24, wherein mapping the one or more control resource set indices, the one or more control resource set pool indices, or any combination thereof to the one or more active physical cell identifiers according to the order comprises: One or more corresponding control resource set indices, one or more corresponding control resource set pool indices, or any combination thereof in order from lowest index to highest index are paired with one or more corresponding active physical cell identifiers in order from lowest value to highest value.

26. The method of claim 16, wherein communicating with the UE based on the one or more parameters associated with the one or more physical cell identifiers comprises: determining that a bit scrambling technique associated with the one or more physical cell identifiers comprises an input to a shared channel for the communications, the one or more parameters associated with the one or more physical cell identifiers comprising the bit scrambling technique; and Based at least in part on determining that the bit scrambling technique associated with the one or more physical cell identifiers includes the input, applying the bit scrambling technique to the shared channel.

27. The method of claim 16, comprising: The UE is communicated with via a subset of a plurality of transmit and receive points of a serving cell, each transmit and receive point being associated with a respective physical cell identifier, wherein the one or more physical cell identifiers correspond to the one or more transmit and receive points of the subset.

28. The method of claim 16, comprising: The UE is communicated with via a subset of a plurality of serving cells, each serving cell being associated with a respective physical cell identifier, wherein the one or more physical cell identifiers correspond to one or more serving cells of the subset.

29. An apparatus for wireless communication at a user equipment (UE), comprising: processor; a memory, coupled to the processor; as well as instructions stored in the memory and executable by the processor to cause the device to: receiving, from a base station via one or more control resource sets of one or more search spaces, a control message scheduling communication between the UE and the base station; identifying, based at least in part on receiving the control message, an association between the one or more control resource sets of the one or more search spaces and one or more physical cell identifiers; as well as Based at least in part on the association between the one or more sets of control resources and the one or more physical cell identifiers, communicating with the base station in accordance with one or more parameters associated with the one or more physical cell identifiers.

30. An apparatus for wireless communication at a base station, comprising: processor; a memory, coupled to the processor; as well as instructions stored in the memory and executable by the processor to cause the device to: identifying an association between one or more control resource sets of one or more search spaces and one or more physical cell identifiers for communicating with a user equipment (UE); sending, to the UE, a control message scheduling communication between the UE and the base station via the one or more sets of control resources of the one or more search spaces and based at least in part on identifying the association; as well as Based at least in part on the association between the one or more sets of control resources and the one or more physical cell identifiers, communicating with the UE in accordance with one or more parameters associated with the one or more physical cell identifiers.

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