Path loss-based power control for configured uplink licensing

Abstract

A wireless device receives one or more messages including configuration parameters. For a configured uplink grant, the configuration parameters indicate a set of power control parameters. Transport blocks of the configured uplink grant are transmitted at a transmission power. In response to an activation command capable of updating a path loss reference signal for the uplink channel, the transmission power is determined based on the path loss reference signal mapped to the power control parameter set.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of U.S. Provisional Application No. 62 / 960,902, filed January 14, 2020, the entire contents of which are hereby incorporated by reference. Attached Figure Description

[0003] Examples of several embodiments of the various embodiments of this disclosure are described herein with reference to the accompanying drawings.

[0004] Figure 1A and Figure 1B An exemplary mobile communication network in which embodiments of the present disclosure can be implemented is described.

[0005] Figure 2A and Figure 2B The new radio (NR) user plane and control plane protocol stacks are described separately.

[0006] Figure 3 This explains that in Figure 2A An example of the services provided between the protocol layers of the NR user plane protocol stack.

[0007] Figure 4A This explains the flow Figure 2A An example downlink data stream of the NR user plane protocol stack.

[0008] Figure 4B This describes an exemplary format for the MAC subheader in a MAC PDU.

[0009] Figure 5A and Figure 5B The mappings between logical channels, transport channels, and physical channels used for downlink and uplink are explained respectively.

[0010] Figure 6 This is an exemplary diagram illustrating the RRC state transition of the UE.

[0011] Figure 7 This describes an exemplary configuration in which OFDM symbols are grouped into NR frames.

[0012] Figure 8 An exemplary configuration of time slots in the time and frequency domains of an NR carrier is illustrated.

[0013] Figure 9 This illustrates an example of bandwidth adaptation using three configured BWPs with NR carriers.

[0014] Figure 10A Three carrier aggregation configurations with two component carriers are described.

[0015] Figure 10B This illustrates an example of how aggregated cells can be configured into one or more PUCCH groups.

[0016] Figure 11A An example illustrating the structure and location of SS / PBCH blocks is provided.

[0017] Figure 11B An example of CSI-RS mapped in the time and frequency domains is illustrated.

[0018] Figure 12A and Figure 12B Examples of three downlink and uplink beam management procedures are provided.

[0019] Figure 13A , Figure 13B and Figure 13C The document describes a four-step contention-based random access procedure, a two-step contention-free random access procedure, and another two-step random access procedure.

[0020] Figure 14A This illustrates an example of CORESET configuration for the bandwidth portion.

[0021] Figure 14B An example of CCE-to-REG mapping for DCI transport is illustrated in CORESET and PDCCH processing.

[0022] Figure 15 An example of a wireless device communicating with a base station is provided.

[0023] Figure 16A , Figure 16B , Figure 16C and Figure 16D An exemplary structure for uplink and downlink transmission is described.

[0024] Figure 17 This is an example of a power control configuration for a PUSCH according to one aspect of the embodiments of this disclosure.

[0025] Figure 18 This is an example of power control according to one aspect of the embodiments of this disclosure.

[0026] Figure 19 This is an example of a MAC CE for power control according to one aspect of an exemplary embodiment of the present disclosure.

[0027] Figure 20 This is a flowchart of power control according to one aspect of an exemplary embodiment of the present disclosure.

[0028] Figure 21This is an example of a MAC CE for power control according to one aspect of an exemplary embodiment of the present disclosure.

[0029] Figure 22A and Figure 22B This is an example of power control configured for uplink authorization according to one aspect of an exemplary embodiment of this disclosure.

[0030] Figure 23 This is a flowchart of configured uplink authorized power control according to one aspect of an exemplary embodiment of this disclosure.

[0031] Figure 24 This is a flowchart of configured uplink authorized power control according to one aspect of an exemplary embodiment of this disclosure.

[0032] Figure 25 This is a flowchart of power control of an SRS according to an exemplary embodiment of the present disclosure.

[0033] Figure 26 This is a flowchart of power control of an SRS according to an exemplary embodiment of the present disclosure.

[0034] Figure 27 This is a flowchart of configured uplink authorized power control according to one aspect of an exemplary embodiment of this disclosure. Detailed Implementation

[0035] In this disclosure, various embodiments are presented as examples of how the disclosed techniques and / or how they can be practiced in environments and contexts. It will be apparent to those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention. Indeed, alternative embodiments will become apparent to those skilled in the art upon reading the specification. Embodiments of the invention should not be limited to any of the described exemplary embodiments. Embodiments of this disclosure will be described with reference to the accompanying drawings. Limitations, features, and / or elements from the disclosed exemplary embodiments may be combined to create additional embodiments within the scope of this disclosure. Any diagrams highlighting functionality and advantages are given for illustrative purposes only. The disclosed architecture is flexible and configurable enough that it can be utilized in ways other than those shown. For example, actions listed in any flowchart may be reordered or used only optionally in certain embodiments.

[0036] The implementation scheme can be configured to operate as needed. The disclosed mechanisms can be executed when certain criteria are met, such as in wireless devices, base stations, radio environments, networks, combinations thereof, etc. Exemplary criteria may be based at least in part on, for example, wireless device or network node configuration, traffic load, initial system setup, packet size, service characteristics, combinations thereof, etc. Various exemplary implementation schemes can be applied when one or more criteria are met. Therefore, exemplary implementation schemes that selectively implement the disclosed protocols can be implemented.

[0037] A base station can communicate with a hybrid of wireless devices. Wireless devices and / or base stations can support multiple technologies and / or multiple versions of the same technology. Wireless devices may have certain specific capabilities, depending on the wireless device category and / or capabilities. When this disclosure refers to a base station communicating with multiple wireless devices, this disclosure may mean a subset of the total number of wireless devices in the coverage area. For example, this disclosure may mean multiple wireless devices having a given capability and a given LTE or 5G version in a given sector of a base station. Multiple wireless devices in this disclosure may refer to a selected set of wireless devices, and / or a subset of the total number of wireless devices in the coverage area performing according to the disclosed method, etc. Multiple base stations or multiple wireless devices may exist in the coverage area that may not conform to the disclosed method; for example, these wireless devices or base stations may be based on older versions of LTE or 5G technology.

[0038] In this disclosure, “a” (“a” and “an”) and similar phrases will be interpreted as “at least one” and “one or more”. Similarly, any term ending with the suffix “(s)” will be interpreted as “at least one” and “one or more”. In this disclosure, the term “may” is interpreted as “may, for example”. In other words, the term “may” indicates that the phrase following the term “may” is an example of a suitable possibility among a number of suitable possibilities that may or may not be used in one or more embodiments of various implementations. As used herein, the terms “comprises” and “consists of” enumerate one or more components of the element being described. The terms “comprises” and “includes” are interchangeable and do not exclude the inclusion of unlisted components in the element being described. In contrast, “consists of” provides a complete enumeration of one or more components of the element being described. As used herein, the term “based on” should be interpreted as “at least partially based on” rather than, for example, “based on only”. As used herein, the term “and / or” indicates any possible combination of the enumerated elements. For example, "A, B and / or C" can mean A; B; C; A and B; A and C; B and C; or A, B and C.

[0039] If A and B are sets, and every element of A is also an element of B, then A is called a subset of B. In this specification, only non-empty sets and subsets are considered. For example, possible subsets of B = {cell1, cell2} are: {cell1}, {cell2}, and {cell1, cell2}. The phrase “based on” (or equivalently “at least based on”) indicates that the phrase following the term “based on” is an example of one of a variety of suitable possibilities that may or may not be used for one or more different implementations. The phrase “in response to” (or equivalently “at least in response to”) indicates that the phrase following the phrase “in response to” is an example of one of a variety of suitable possibilities that may or may not be used for one or more different implementations. The phrase “depends on” (or equivalently “at least depends on”) indicates that the phrase following the phrase “depends on” is an example of one of a variety of suitable possibilities that may or may not be used for one or more different implementations. The phrase “adopts / uses” (or equivalently “at least adopts / uses”) indicates that the phrase following the phrase “adopts / uses” is an example of one of a variety of suitable possibilities that may or may not be used for one or more different implementations.

[0040] The term "configured" can refer to the capabilities of a device, whether the device is in an operational or non-operational state. "Configured" can also mean specific settings within the device that affect its operational characteristics, regardless of whether the device is in an operational or non-operational state. In other words, hardware, software, firmware, registers, memory values, etc., can be "configured" within the device to provide specific characteristics to the device, whether the device is in an operational or non-operational state. Terms such as "control messages generated in the device" can mean that the control messages have parameters that can be used to configure specific characteristics in the device or to perform certain actions in the device, regardless of whether the device is in an operational or non-operational state.

[0041] In this disclosure, a parameter (or equivalently referred to as a field or information element: IE) may include one or more information objects, and an information object may include one or more other objects. For example, if parameter (IE)N includes parameter (IE)M, and parameter (IE)M includes parameter (IE)K, and parameter (IE)K includes parameter (information element)J, then, for example, N includes K, and N includes J. In an exemplary embodiment, when one or more messages include multiple parameters, it means that a parameter among the multiple parameters is in at least one of the one or more messages, but not necessarily in every one of the one or more messages.

[0042] Many of the proposed features are described as optional using the word "may" or parentheses. For brevity and readability, this disclosure does not explicitly describe every permutation that can be obtained by selecting from the group of optional features. This disclosure should be interpreted as explicitly disclosing all such permutations. For example, a system described as having three optional features can be embodied in seven different ways: having only one of the three possible features, having any two of the three possible features, or having three of the three possible features.

[0043] Many elements described in the disclosed embodiments can be implemented as modules. A module is defined herein as an element that performs the defined function and has defined interfaces to other elements. Modules described in this disclosure can be implemented as hardware, software combined with hardware, firmware, wet hardware (e.g., hardware with biological elements), or combinations thereof, all of which may be behaviorally equivalent. For example, a module can be implemented as software routines written in a computer language configured to be executed by a hardware machine (such as C, C++, Fortran, Java, Basic, Matlab, etc.) or a modeling / simulation program (such as Simulink, Stateflow, GNU Octave, or LabVIEW MathScript). It is possible to implement modules using physical hardware incorporating discrete or programmable analog, digital, and / or quantum hardware. Examples of programmable hardware include: computers, microcontrollers, microprocessors, application-specific integrated circuits (ASICs); field-programmable gate arrays (FPGAs); and complex programmable logic devices (CPLDs). Computers, microcontrollers, and microprocessors are programmed using languages ​​such as assembly, C, and C++. FPGAs, ASICs, and CPLDs are frequently programmed using hardware description languages ​​(HDLs), such as VHSIC Hardware Description Language (VHDL) or Verilog. These languages ​​configure connections between limited internal hardware modules on a programmable device. The aforementioned techniques are often combined to achieve the desired functional module results.

[0044] Figure 1A An example of a mobile communication network 100 in which embodiments of the present disclosure can be implemented is illustrated. The mobile communication network 100 may be, for example, a Public Land Mobile Network (PLMN) operated by a network operator. Figure 1A As described herein, the mobile communication network 100 includes a core network (CN) 102, a radio access network (RAN) 104, and a wireless device 106.

[0045] CN 102 can provide the wireless device 106 with an interface to one or more data networks (DNs) (such as public DNs (e.g., the Internet), private DNs, and / or carrier-internal DNs). As part of the interface functionality, CN 102 can establish an end-to-end connection between the wireless device 106 and one or more DNs, authenticate the wireless device 106, and provide charging functionality.

[0046] RAN 104 can connect CN 102 to radio device 106 via radio communication through an air interface. As part of the radio communication, RAN 104 can provide scheduling, radio resource management, and retransmission protocols. The communication direction from RAN 104 to radio device 106 via the air interface is referred to as the downlink, while the communication direction from radio device 106 to RAN 104 via the air interface is referred to as the uplink. Downlink transmissions can be separated from uplink transmissions using Frequency Division Duplex (FDD), Time Division Duplex (TDD), and / or some combination of the two duplexing technologies.

[0047] The term "wireless device" may be used throughout this disclosure to mean and cover any mobile or fixed (non-mobile) device that requires or can use wireless communication. For example, a wireless device can be a telephone, smartphone, tablet, computer, laptop, sensor, instrument, wearable device, Internet of Things (IoT) device, roadside unit (RSU), relay node, automobile, and / or any combination thereof. The term "wireless device" also encompasses other terms including user equipment (UE), user terminal (UT), access terminal (AT), mobile station, handheld device, wireless transmit and receive unit (WTRU), and / or wireless communication equipment.

[0048] RAN 104 may include one or more base stations (not shown). The term "base station" may be used throughout this disclosure to mean and encompass: Node B (associated with UMTS and / or 3G standards); Evolved Node B (eNB, associated with E-UTRA and / or 4G standards); Remote Radio Header (RRH); Baseband Processing Unit coupled to one or more RRHs; Repeater Node or Relay Node for extending the coverage area of ​​the donor Node; Next Generation Evolved Node B (ng-eNB); Generation Node B (gNB, associated with NR and / or 5G standards); Access Point (AP, associated with, for example, WiFi or any other suitable wireless communication standard); and / or any combination thereof. A base station may include at least one gNB Central Unit (gNB-CU) and at least one gNB Distributed Unit (gNB-DU).

[0049] The base stations included in RAN 104 may include one or more sets of antennas for communicating with wireless device 106 via an air interface. For example, one or more of the base stations may include three sets of antennas to control three cells (or sectors) respectively. The size of a cell may be determined by the range within which a receiver (e.g., a base station receiver) can successfully receive transmissions from a transmitter (e.g., a wireless device transmitter) operating in the cell. The cells of the base stations may together provide radio coverage over a wide geographical area to wireless device 106 to support wireless device mobility.

[0050] Besides three-sector sites, other implementations of the base stations are also possible. For example, one or more base stations in RAN 104 can be implemented as sectorized sites with more or fewer than three sectors. One or more base stations in RAN 104 can be implemented as access points, baseband processing units coupled to several remote radio heads (RRHs), and / or repeater or relay nodes for extending the coverage area of ​​the donor node. The baseband processing unit coupled to the RRH can be part of a centralized or cloud RAN architecture, where the baseband processing unit can be centralized in a pool of baseband processing units or virtualized. The repeater node can amplify and replay the radio signals received from the donor node. The relay node can perform the same / similar functions as the repeater node, but can decode the radio signals received from the donor node to remove noise before amplifying and replaying the radio signals.

[0051] RAN 104 can be deployed as a homogeneous network of macrocell base stations with similar antenna configurations and similar high-level transmission power. RAN 104 can also be deployed as a heterogeneous network. In a heterogeneous network, small cell base stations can be used to provide small coverage areas, such as coverage areas overlapping with the relatively large coverage areas provided by macrocell base stations. Small coverage areas can be provided in areas with high data traffic (or so-called "hot spots") or in areas where macrocell coverage is weak. Examples of small cell base stations, in descending order of coverage area, include: microcell base stations, picocell base stations, and femtocell base stations or home base stations.

[0052] The Third Generation Partnership Project (3GPP) was established in 1998 to facilitate collaboration with... Figure 1A The mobile communication network 100 in this disclosure provides global standardization for similar mobile communication networks. To date, 3GPP has defined specifications for three generations of mobile networks: the third-generation (3G) network known as Universal Mobile Telecommunications System (UMTS), the fourth-generation (4G) network known as Long Term Evolution (LTE), and the fifth-generation (5G) network known as 5G System (5GS). The embodiments of this disclosure are described with reference to the RAN of the 3GPP 5G network, known as Next Generation RAN (NG-RAN). These embodiments are applicable to the RAN of other mobile communication networks, such as... Figure 1A RAN 104, RANs of early 3G and 4G networks, and those RANs of future networks that have not yet been specified (e.g., 3GPP 6G networks). NG-RAN implements 5G radio access technology known as New Radio (NR) and can be configured to implement 4G radio access technology or other radio access technologies, including non-3GPP radio access technologies.

[0053] Figure 1B Another exemplary mobile communication network 150 in which embodiments of this disclosure can be implemented is illustrated. The mobile communication network 150 may be, for example, a PLMN operated by a network operator. Figure 1B As described herein, the mobile communication network 150 includes a 5G core network (5G-CN) 152, an NG-RAN 154, and UEs 156A and 156B (collectively referred to as UE 156). This can be compared with information regarding... Figure 1A These components are implemented and operated in the same or similar manner as the corresponding components described.

[0054] 5G-CN 152 provides UE 156 with an interface to one or more DNs, such as public DNs (e.g., the Internet), private DNs, and / or operator-internal DNs. As part of the interface functionality, 5G-CN 152 can establish end-to-end connections between UE 156 and one or more DNs, authenticate UE 156, and provide charging functions. Compared to the CNs in 3GPP 4G networks, the foundation of 5G-CN 152 can be a service-based architecture. This means that the architecture of the nodes constituting 5G-CN 152 can be defined as network functions that provide services to other network functions via the interface. The network functions of 5G-CN 152 can be implemented in several ways, including as network elements on dedicated or shared hardware, as software instances running on dedicated or shared hardware, or as virtualized functions instantiated on a platform (e.g., a cloud-based platform).

[0055] like Figure 1B As explained, 5G-CN 152 includes Access and Mobility Management Functions (AMF) 158A and User Plane Functions (UPF) 158B. For ease of explanation, in Figure 1BThese are shown as a single component, AMF / UPF 158. UPF 158B can act as a gateway between NG-RAN 154 and one or more DNs. Functions that UPF 158B can perform include: packet routing and forwarding, packet inspection and user plane policy rule enforcement, service usage reporting, uplink classification supporting the routing of service flows to one or more DNs, user plane Quality of Service (QoS) processing (e.g., packet filtering, gating, uplink / downlink rate enforcement, and uplink service authentication), downlink packet buffering, and downlink data notification triggering. UPF 158B can act as an anchor point for intra / inter-Radio Access Technology (RAT) mobility, an external Protocol (or Packet) Data Unit (PDU) session point interconnecting with one or more DNs, and / or a pivot point supporting multihomed PDU sessions. UE 156 can be configured to receive services via a PDU session, which is a logical connection between the UE and the DN.

[0056] The AMF 158A can perform functions such as: Non-Access Layer (NAS) signaling termination, NAS signaling security, Access Layer (AS) security control, inter-CN node signaling for mobility between 3GPP access networks, idle mode UE reachability (e.g., control and execution of paging retransmission), registration area management, intra-system and inter-system mobility support, access authentication, access authorization including roaming rights verification, mobility management control (subscription and policies), network slicing support, and / or Session Management Function (SMF) selection. NAS can refer to functions operating between the CN and the UE, and AS can refer to functions operating between the UE and the RAN.

[0057] 5G-CN 152 may include, for clarity, not listed here. Figure 1B One or more additional network functions are shown in the diagram. For example, 5G-CN 152 may include one or more of the following: Session Management Function (SMF), NR Repository Function (NRF), Policy Control Function (PCF), Network Openness Function (NEF), Unified Data Management (UDM), Application Function (AF), and / or Authentication Server Function (AUSF).

[0058] NG-RAN 154 can connect 5G-CN 152 to UE 156 via radio communication over an air interface. NG-RAN 154 may include: one or more gNBs, such as gNB 160A and gNB 160B (collectively referred to as gNB 160); and / or one or more ng-eNBs, such as ng-eNB 162A and ng-eNB 162B (collectively referred to as ng-eNB 162). gNB 160 and ng-eNB 162 may be more generally referred to as base stations. gNB 160 and ng-eNB 162 may include one or more sets of antennas for communicating with UE 156 via the air interface. For example, one or more gNBs in gNB 160 and / or one or more ng-eNBs in ng-eNB 162 may include three sets of antennas to control three cells (or sectors) respectively. The gNB160 and ng-eNB 162 cells can work together to provide UE 156 with radio coverage over a wide geographical area to support UE mobility.

[0059] like Figure 1B As shown, gNB 160 and / or ng-eNB 162 can connect to 5G-CN 152 via the NG interface and to other base stations via the Xn interface. The NG and Xn interfaces can be established using a direct physical connection and / or an indirect connection via a potential transport network (such as an Internet Protocol (IP) transport network). gNB 160 and / or ng-eNB 162 can connect to UE 156 via the Uu interface. For example, as... Figure 1B As explained, the gNB 160A can connect to the UE 156A via the Uu interface. The NG, Xn, and Uu interfaces are associated with a protocol stack. The protocol stack associated with the interface can be configured by... Figure 1B The network elements in the system are used to exchange data and signaling messages, and can include two planes: a user plane and a control plane. The user plane can handle data that is of interest to the user. The control plane can handle signaling messages that are of interest to the network elements.

[0060] The gNB 160 and / or ng-eNB 162 can connect to one or more AMF / UPF functions of the 5G-CN 152, such as AMF / UPF 158, via one or more NG interfaces. For example, the gNB 160A can connect to the UPF 158B of the AMF / UPF 158 via an NG user plane (NG-U) interface. The NG-U interface can provide user plane PDU delivery (e.g., non-guaranteed delivery) between the gNB 160A and the UPF 158B. The gNB 160A can connect to the AMF158A via an NG control plane (NG-C) interface. The NG-C interface can provide, for example, NG interface management, UE context management, UE mobility management, NAS message delivery, paging, PDU session management, and configuration delivery and / or warning message transmission.

[0061] The gNB 160 can provide NR user plane and control plane protocol termination to UE 156 via the Uu interface. For example, the gNB 160A can provide NR user plane and control plane protocol termination to UE 156A via the Uu interface associated with the first protocol stack. The ng-eNB 162 can provide Evolved UMTS Terrestrial Radio Access (E-UTRA) user plane and control plane protocol termination to UE 156 via the Uu interface, where E-UTRA refers to 3GPP 4G radio access technology. For example, the ng-eNB 162B can provide E-UTRA user plane and control plane protocol termination to UE 156B via the Uu interface associated with the second protocol stack.

[0062] 5G-CN 152 is described as being configured to handle NR and 4G radio access. Those skilled in the art will understand that NR can potentially connect to the 4G core network in a mode known as “non-standalone operation.” In non-standalone operation, the 4G core network is used to provide (or at least support) control plane functions (e.g., initial access, mobility, and paging). Although Figure 1B The diagram shows only one AMF / UPF 158, but a gNB or ng-eNB can connect to multiple AMF / UPF nodes to provide redundancy and / or load sharing across said multiple AMF / UPF nodes.

[0063] As discussed, Figure 1B The interfaces between network elements (e.g., Uu, Xn, and NG interfaces) can be associated with the protocol stack used by the network elements to exchange data and signaling messages. The protocol stack can include two planes: a user plane and a control plane. The user plane handles data of interest to the user, while the control plane handles signaling messages of interest to the network elements.

[0064] Figure 2A and Figure 2B Examples of NR user plane and NR control plane protocol stacks for the Uu interface located between UE 210 and gNB 220 are illustrated respectively. Figure 2A and Figure 2B The protocol stack described herein can be used for, for example Figure 1B The protocol stacks of the Uu interface between UE156A and gNB 160A shown are the same or similar.

[0065] Figure 2A This describes the five-layer NR user plane protocol stack implemented in UE 210 and gNB 220. At the bottom of the protocol stack, the Physical Layer (PHY) 211 and 221 can provide transport services to the higher layers of the stack and can correspond to Layer 1 of the Open Systems Interconnection (OSI) model. The next four protocols above PHY 211 and 221 include the Medium Access Control Layer (MAC) 212 and 222, the Radio Link Control Layer (RLC) 213 and 223, the Packet Data Convergence Protocol Layer (PDCP) 214 and 224, and the Service Data Application Protocol Layer (SDAP) 215 and 225. These four protocols can together constitute Layer 2 of the OSI model or the Data Link Layer.

[0066] Figure 3 This illustrates examples of services provided between protocol layers in the NR user plane protocol stack. From Figure 2A and Figure 3 Starting from the top, SDAPs 215 and 225 can perform QoS flow processing. UE 210 can receive services through a PDU session, which can be a logical connection between UE 210 and the DN. The PDU session can have one or more QoS flows. The CN's UPF (e.g., UPF 158B) can map IP packets to one or more QoS flows of the PDU session based on QoS requirements (e.g., in terms of latency, data rate, and / or error rate). SDAPs 215 and 225 can perform mapping / demapping between one or more QoS flows and one or more data radio bearers. The mapping / demapping between QoS flows and data radio bearers can be determined by SDAP 225 at gNB 220. SDAP 215 at UE 210 can learn the mapping between QoS flows and data radio bearers through reflected mapping or control signaling received from gNB 220. For reflective mapping, SDAP225 at gNB 220 can mark downlink packets with QoS flow indicators (QFIs), which can be observed by SDAP215 at UE 210 to determine the mapping / demapping between QoS flows and data radio bearers.

[0067] PDCP 214 and 224 can perform header compression / decompression to reduce the amount of data that needs to be transmitted over the air interface, can perform encryption / decryption to prevent unauthorized decoding of data transmitted over the air interface, and can perform integrity protection to ensure that control messages originate from their intended source. PDCP 214 and 224 can perform retransmission of undelivered packets, reordering and recapture of packets, and removal of duplicate packets received due to, for example, intra-gNB handover. PDCP 214 and 224 can perform packet duplication to increase the likelihood of packet reception and remove any duplicate packets at the receiver. Packet duplication can be useful for services requiring high reliability.

[0068] although Figure 3 Although not shown, PDCP 214 and 224 can perform mapping / demapping between split radio bearers and RLC channels in a dual connectivity scenario. Dual connectivity is a technique that allows a UE to connect to two cells or more generally to two cell groups: a primary cell group (MCG) and a secondary cell group (SCG). Split bearers are those that occur when a single radio bearer (such as one of the radio bearers provided by PDCP 214 and 224 as a service to SDAP 215 and 225) is handled by a cell group in dual connectivity. PDCP 214 and 224 can map / demapping split radio bearers between RLC channels belonging to a cell group.

[0069] RLCs 213 and 223 can respectively perform segmentation, retransmission via Automatic Repeat Request (ARQ), and removal of duplicate data units received from MACs 212 and 222. RLCs 213 and 223 can support three transmission modes: Transparent Mode (TM); Unacknowledged Mode (UM); and Acknowledged Mode (AM). Based on the transmission mode the RLC is operating in, the RLC can perform one or more of the aforementioned functions. RLC configuration can be based on each logical channel, independent of parameter sets and / or Transmission Time Interval (TTI) duration. Figure 3 As shown, RLC 213 and 223 can provide RLC channels as services to PDCP 214 and 224, respectively.

[0070] MACs 212 and 222 can perform multiplexing / demultiplexing of logical channels and / or mapping between logical channels and transport channels. Multiplexing / demultiplexing may include multiplexing data units belonging to one or more logical channels into / from a transport block (TB) delivered to / from PHYs 211 and 221. MAC 222 can be configured to perform scheduling, scheduling information reporting, and priority processing between UEs by means of dynamic scheduling. Scheduling can be performed for downlink and uplink in gNB 220 (at MAC 222). MACs 212 and 222 can be configured to perform error correction via Hybrid Automatic Repeat Request (HARQ) (e.g., one HARQ entity per carrier in the case of carrier aggregation (CA), priority processing between logical channels of UE 210 by means of logical channel priority ordering, and / or padding. MACs 212 and 222 can support one or more parameter sets and / or transmission timings. In one example, mapping constraints in logical channel priority ordering can control which parameter set and / or transmission timing can be used by a logical channel. like Figure 3 As shown, MAC 212 and 222 can provide logical channels as services to RLC 213 and 223.

[0071] PHYs 211 and 221 can perform transport-to-physical channel mapping and digital and analog signal processing functions for transmitting and receiving information via the air interface. These digital and analog signal processing functions may include, for example, encoding / decoding and modulation / demodulation. PHYs 211 and 221 can perform multi-antenna mapping. Figure 3 As shown, PHYs 211 and 221 can provide one or more transport channels as services to MACs 212 and 222.

[0072] Figure 4A This illustrates an exemplary downlink data flow through the NR user plane protocol stack. Figure 4A This describes the downlink data flow that passes through the NR user plane protocol stack to generate three IP packets (n, n+1, and m) of two TB at gNB 220. The uplink data flow passing through the NR user plane protocol stack can be compared with... Figure 4A The downlink data flow described in the text is similar.

[0073] Figure 4A The downlink data flow begins when SDAP 225 receives three IP packets from one or more QoS flows and maps those three packets to radio bearers. Figure 4A In SDAP 225, IP packets n and n+1 are mapped to the first radio bearer 402, and IP packet m is mapped to the second radio bearer 404. The SDAP header (in...) Figure 4AData units marked with "H" are added to IP packets. Data units originating from / going to a higher protocol layer are called lower protocol layer Service Data Units (SDUs), and data units originating from / going to a lower protocol layer are called higher protocol layer Protocol Data Units (PDUs). Figure 4A As shown, the data unit from SDAP 225 is the SDU of the lower protocol layer PDCP 224 and is the PDU of SDAP 225.

[0074] Figure 4A The remaining protocol layers can perform their associated functions (e.g., regarding...). Figure 3 This involves adding the corresponding headers and forwarding their respective outputs to the next lower layer. For example, PDCP 224 can perform IP header compression and encryption, and forward its output to RLC 223. RLC 223 can optionally perform fragmentation (e.g., as...). Figure 4A (As shown in the image regarding IP packet m) and forwards its output to MAC 222. MAC 222 can multiplex many RLC PDUs and can attach MAC subheaders to RLC PDUs to form transport blocks. In NR, MAC subheaders can be distributed throughout MAC PDUs, such as... Figure 4A As explained in [the document]. In LTE, the MAC sub-header can be located entirely at the beginning of the MAC PDU. The NR MAC PDU structure can reduce processing time and associated latency because the MAC PDU sub-header can be calculated before the complete MAC PDU is assembled.

[0075] Figure 4B An exemplary format of the MAC subheader in a MAC PDU is described. The MAC subheader includes: an SDU length field indicating the length (e.g., in bytes) of the MAC SDU to which the MAC subheader corresponds; a Logical Channel Identifier (LCID) field identifying the logical channel from which the MAC SDU originates to assist in the demultiplexing process; a flag (F) indicating the size of the SDU length field; and a reserved bit (R) field for future use.

[0076] Figure 4B This further illustrates the MAC control element (CE) inserted into the MAC PDU by a MAC (such as MAC 223 or MAC 222). For example, Figure 4B This describes the two MAC CEs inserted into the MAC PDU. These can be used at the beginning of downlink transmissions in the MAC PDU (e.g., ...). Figure 4B(As shown in the diagram) and a MAC CE is inserted at the end of the uplink transmission of the MAC PDU. The MAC CE can be used for in-band control signaling. Exemplary MAC CEs include: scheduling-related MAC CEs, such as buffer status reports and power headroom reports; activation / deactivation MAC CEs, such as those for PDCP repeated detection, channel state information (CSI) reports, sounding reference signal (SRS) transmission, and activation / deactivation of previously configured components; discontinuous reception (DRX)-related MAC CEs; timing advance MAC CEs; and random access-related MAC CEs. A MAC subheader with a format similar to that described with respect to the MAC SDU may precede the MAC CE, and the MAC CE may be identified by a reserved value in the LCID field indicating the type of control information included in the MAC CE.

[0077] Before describing the NR control plane protocol stack, we will first describe the mapping between logical channels, transport channels, and physical channels, as well as channel types. One or more of these channels can be used to perform functions associated with the NR control plane protocol stack, which will be described later below.

[0078] Figure 5A and Figure 5B The mapping between logical channels, transport channels, and physical channels is explained for both downlink and uplink. Information is transmitted through channels between the RLC, MAC, and PHY of the NR protocol stack. Logical channels can be used between the RLC and MAC and can be classified as control channels carrying control and configuration information in the NR control plane, or as service channels carrying data in the NR user plane. Logical channels can be classified as dedicated logical channels for a specific UE, or as common logical channels that can be used by more than one UE. Logical channels can also be defined by the type of information they carry. The set of logical channels defined by NR includes, for example:

[0079] - Paging Control Channel (PCCH), which carries paging messages for paging UEs whose location is unknown to the network at the cell level;

[0080] - Broadcast Control Channel (BCCH), which carries system information messages in the form of a Main Information Block (MIB) and several System Information Blocks (SIB), wherein the system information messages can be used by the UE to obtain information about how the cell is configured and how it operates within the cell;

[0081] - Common Control Channel (CCCH), which is used to carry control messages and random access;

[0082] - A dedicated control channel (DCCH) for carrying control messages to a specific UE / carrying control messages from a specific UE to configure the UE; and

[0083] - Dedicated Service Channel (DTCH), which is used to carry user data to a specific UE / carry user data from a specific UE.

[0084] Transport channels are used between the MAC layer and the PHY layer, and can be defined by how the information they carry is transmitted via the air interface. The set of transport channels defined by NR includes, for example:

[0085] - Paging Channel (PCH), which is used to carry paging messages originating from PCCH;

[0086] - Broadcast channel (BCH), which is used to carry MIBs from the BCCH;

[0087] - Downlink Shared Channel (DL-SCH), which is used to carry downlink data and signaling messages, including SIBs from BCCH;

[0088] - Uplink Shared Channel (UL-SCH), used to carry uplink data and signaling messages; and

[0089] - Random Access Channel (RACH), which is used to allow a UE to access the network without any prior scheduling.

[0090] The PHY can use physical channels to transfer information between processing levels of the PHY. A physical channel can have an associated set of time-frequency resources for carrying information from one or more transport channels. The PHY can generate control information to support lower-level PHY operations and provide this control information to lower levels of the PHY via physical control channels (referred to as L1 / L2 control channels). The set of physical channels and physical control channels defined by NR includes, for example:

[0091] - Physical Broadcast Channel (PBCH), which is used to carry MIBs from the BCH;

[0092] - Physical Downlink Shared Channel (PDSCH), which is used to carry downlink data and signaling messages from DL-SCH and paging messages from PCH;

[0093] - Physical downlink control channel (PDCCH), which carries downlink control information (DCI), which may include downlink scheduling commands, uplink scheduling authorizations and uplink power control commands;

[0094] - The Physical Uplink Shared Channel (PUSCH) is used to carry uplink data and signaling messages from the UL-SCH, and in some cases, uplink control information (UCI) as described below.

[0095] - Physical Uplink Control Channel (PUCCH), which carries a UCI, the UCI including HARQ acknowledgment, Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), and Scheduling Request (SR); and

[0096] - Physical Random Access Channel (PRACH), which is used for random access.

[0097] Similar to the physical control channel, the physical layer generates physical signals to support low-level physical layer operations. For example... Figure 5A and Figure 5B As shown, the physical layer signals defined by NR include: Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), Sounding Reference Signal (SRS), and Phase Tracking Reference Signal (PT-RS). These physical layer signals will be described in more detail below.

[0098] Figure 2B An exemplary NR control plane protocol stack is illustrated. For example... Figure 2B As shown, the NR control plane protocol stack can use the same / similar first four protocol layers as the exemplary NR user plane protocol stack. These four protocol layers include PHY 211 and 221, MAC 212 and 222, RLC 213 and 223, and PDCP 214 and 224. Instead of having SDAP 215 and 225 at the top of the stack as in the NR user plane protocol stack, the NR control plane protocol stack has Radio Resource Control (RRC) 216 and 226 and NAS protocols 217 and 237 at the top of the NR control plane protocol stack.

[0099] NAS protocols 217 and 237 can provide control plane functions between UE 210 and AMF 230 (e.g., AMF 158A) or more generally between UE 210 and CN. NAS protocols 217 and 237 can provide control plane functions between UE 210 and AMF 230 via signaling messages known as NAS messages. There is no direct path through which NAS messages can be transmitted between UE 210 and AMF 230. NAS messages can be transmitted using the AS of the Uu and NG interfaces. NAS protocols 217 and 237 can provide control plane functions such as authentication, security, connection setup, mobility management, and session management.

[0100] RRC 216 and 226 can provide control plane functionality between UE 210 and gNB 220, or more generally between UE 210 and RAN. RRC 216 and 226 can provide control plane functionality between UE 210 and gNB 220 via signaling messages known as RRC messages. RRC messages can be transmitted between UE 210 and RAN using signaling radio bearers and the same / similar PDCP, RLC, MAC, and PHY protocol layers. MAC can multiplex control plane and user plane data into the same transport block (TB). RRC 216 and 226 can provide control plane functions such as: broadcasting system information related to AS and NAS; paging initiated by CN or RAN; establishment, maintenance, and release of RRC connections between UE 210 and RAN; security functions including key management; establishment, configuration, maintenance, and release of signaling radio bearers and data radio bearers; mobility functions; QoS management functions; UE measurement reporting and control of said reports; detection and recovery of radio link failures (RLFs); and / or NAS messaging. As part of establishing an RRC connection, RRC 216 and 226 can establish an RRC context, which may involve configuring parameters for communication between UE 210 and RAN.

[0101] Figure 6 This is an exemplary diagram illustrating the RRC state transitions of the UE. The UE can interact with... Figure 1A The wireless device 106 described in the document Figure 2A and Figure 2B The UE 210 depicted herein is the same as or similar to any other wireless device described in this disclosure. Figure 6 As explained, the UE can be in at least one of three RRC states: RRC connected 602 (e.g., RRC_CONNECTED), RRC idle 604 (e.g., RRC_IDLE), and RRC inactive 606 (e.g., RRC_INACTIVE).

[0102] In RRC connection 602, the UE has an established RRC context and may have at least one RRC connection with a base station. The base station may be similar to one of the following: Figure 1A One or more base stations included in RAN 104 as depicted in the document; Figure 1B One of gNB 160 or ng-eNB 162 described herein; Figure 2A and Figure 2BThe gNB 220 depicted in this disclosure; or any other base station described herein. A base station connected to a UE may have an RRC context for the UE. The RRC context, referred to as the UE context, may include parameters for communication between the UE and the base station. These parameters may include, for example: one or more AS contexts; one or more radio link configuration parameters; bearer configuration information (e.g., relating to data radio bearers, signaling radio bearers, logical channels, QoS flows, and / or PDU sessions); security information; and / or PHY, MAC, RLC, PDCP, and / or SDAP layer configuration information. When in RRC connection 602, the UE's mobility may be managed by the RAN (e.g., RAN104 or NG-RAN 154). The UE may measure signal levels (e.g., reference signal levels) from the serving cell and neighboring cells and report these measurements to the base station currently serving the UE. The UE's serving base station may request a cell transfer to one of the neighboring base stations based on the reported measurements. The RRC state can be changed from RRC connection 602 to RRC idle 604 through connection release procedure 608, or to RRC inactive 606 through connection deactivation procedure 610.

[0103] In RRC Idle 604, an RRC context may not have been established for the UE. In RRC Idle 604, the UE may not have an RRC connection with the base station. When in RRC Idle 604, the UE may be in a sleep state most of the time (e.g., to conserve battery power). The UE may periodically wake up (e.g., once in each discontinuous reception cycle) to monitor paging messages from the RAN. The UE's mobility can be managed by the UE through a procedure called cell reselection. The RRC state can be transitioned from RRC Idle 604 to RRC Connection 602 through Connection Establishment Procedure 612, which may involve a random access procedure, as discussed in more detail below.

[0104] In RRC inactivity 606, the previously established RRC context is maintained in both the UE and the base station. This allows for a faster transition to RRC connection 602 with reduced signaling overhead compared to the transition from RRC idle 604 to RRC connected 602. While in RRC inactivity 606, the UE can be in a sleep state, and the UE's mobility can be managed by the UE via cell reselection. The RRC state can transition from RRC inactivity 606 to RRC connected 602 via connection resumption procedure 614, or to RRC idle 604 via connection release procedure 616, which can be the same as or similar to connection release procedure 608.

[0105] RRC states can be associated with mobility management mechanisms. In RRC Idle 604 and RRC Inactive 606, mobility is managed by the UE through cell reselection. The purpose of mobility management in RRC Idle 604 and RRC Inactive 606 is to allow the network to notify the UE of events via paging messages without having to broadcast paging messages across the entire mobile network. The mobility management mechanisms used in RRC Idle 604 and RRC Inactive 606 allow the network to track the UE at the cell group level, so that paging messages can be broadcast on the cells in the cell group where the UE is currently camped, rather than across the entire mobile network. Mobility management mechanisms used in RRC Idle 604 and RRC Inactive 606 track the UE at the cell group level. These mobility management mechanisms can do this using groupings of different granularities. For example, there can be three levels of cell grouping granularity: a single cell; cells within a RAN area identified by a RAN Area Identifier (RAI); and cells within a group of RAN areas called tracking areas and identified by a Tracking Area Identifier (TAI).

[0106] A tracking area can be used to track the UE at the CN level. The CN (e.g., CN 102 or 5G-CN 152) can provide the UE with a list of TAIs associated with the UE's registration area. If the UE moves to a cell associated with a TAI not included in the list of TAIs associated with the UE's registration area via cell reselection, the UE can perform a registration update with the CN to allow the CN to update the UE's location and provide the UE with a new UE registration area.

[0107] RAN areas can be used to track UEs at the RAN level. For a UE in an RRC inactive 606 state, a RAN notification area can be assigned to that UE. A RAN notification area can include one or more cell identities, a list of RAIs, or a list of TAIs. In one example, a base station can belong to one or more RAN notification areas. In one example, a cell can belong to one or more RAN notification areas. If a UE moves via cell reselection to a cell not included in its assigned RAN notification area, the UE can perform a notification area update on the RAN to update its RAN notification area.

[0108] The base station storing the RRC context for the UE, or the UE's last serving base station, may be referred to as the anchor base station. The anchor base station may maintain the RRC context for the UE at least during the period when the UE remains in the anchor base station's RAN notification area and / or during the period when the UE remains in RRC inactivity 606.

[0109] gNB, such as Figure 1BThe gNB 160 can be divided into two parts: a central unit (gNB-CU) and one or more distributed units (gNB-DU). The gNB-CU can be coupled to one or more gNB-DUs using an F1 interface. The gNB-CU may include RRC, PDCP, and SDAP. The gNB-DU may include RLC, MAC, and PHY.

[0110] In NR, physical signals and physical channels (about Figure 5A and Figure 5B The concepts discussed can be mapped onto Orthogonal Frequency Division Multiplexing (OFDM) symbols. OFDM is a multi-carrier communication scheme that transmits data via F orthogonal subcarriers (or tones). Before transmission, the data can be mapped to a series of complex symbols called source symbols (e.g., M-QAM or M-PSK symbols) and divided into F parallel symbol streams. These F parallel symbol streams can be treated as if they were in the frequency domain and used as input to an Inverse Fast Fourier Transform (IFFT) block that transforms them into the time domain. The IFFT block takes F source symbols at a time (one source symbol from each of the F parallel symbol streams) and uses each source symbol to modulate the amplitude and phase of one of the F sinusoidal basis functions corresponding to the F orthogonal subcarriers. The output of the IFFT block can be F time-domain samples representing the sum of the F orthogonal subcarriers. These F time-domain samples can form a single OFDM symbol. After some processing (e.g., addition of a cyclic prefix) and upsampling, the OFDM symbols provided by the IFFT block can be transmitted via the air interface at the carrier frequency. The F parallel symbol streams can be mixed using an FFT block before being processed by the IFFT block. This operation produces discrete Fourier transform (DFT) precoded OFDM symbols, which can be used by the UE in the uplink to reduce the peak-to-average power ratio (PAPR). The inverse processing of the OFDM symbols at the receiver can be performed using the FFT block to recover the data mapped to the source symbols.

[0111] Figure 7 An exemplary configuration of NR frames in which OFDM symbols are grouped is illustrated. NR frames can be identified by a System Frame Number (SFN). An SFN can repeat for a period of 1024 frames. As shown, the duration of an NR frame can be 10 milliseconds (ms) and can include 10 subframes with a duration of 1 ms. Subframes can be divided into time slots, each time slot including, for example, 14 OFDM symbols.

[0112] The duration of a time slot can depend on the parameter set of the OFDM symbols used for that time slot. In NR, flexible parameter sets are supported to accommodate different cell deployments (e.g., cells with carrier frequencies below 1 GHz, up to cells with carrier frequencies in the mmWave range). Parameter sets can be defined in terms of subcarrier spacing and cyclic prefix duration. For parameter sets in NR, the subcarrier spacing can be scaled up from a baseline subcarrier spacing of 15 kHz by powers of two, and the cyclic prefix duration can be scaled down from a baseline cyclic prefix duration of 4.7 μs by powers of two. For example, NR defines parameter sets with the following combinations of subcarrier spacing / cyclic prefix duration: 15 kHz / 4.7 μs; 30 kHz / 2.3 μs; 60 kHz / 1.2 μs; 120 kHz / 0.59 μs; and 240 kHz / 0.29 μs.

[0113] A time slot can have a fixed number of OFDM symbols (e.g., 14 OFDM symbols). A parameter set with a higher subcarrier spacing has a shorter time slot duration and correspondingly more time slots per subframe. Figure 7 This describes the time slot duration and transmission structure per subframe time slot related to the parameter set (for ease of explanation, Figure 7 (The parameter set with a subcarrier spacing of 240 kHz is not shown in the diagram). Subframes in NR can be used as a time reference independent of the parameter set, while time slots can be used as units for scheduling uplink and downlink transmissions. To support low latency, scheduling in NR can be separated from the time slot duration and begin at any OFDM symbol, continuing to transmit as many symbols as needed. These partial time slot transmissions can be referred to as micro-time slots or sub-time slot transmissions.

[0114] Figure 8 This illustrates an exemplary configuration of time slots in the time and frequency domains of an NR carrier. A time slot comprises a Resource Element (RE) and a Resource Block (RB). An RE is the smallest physical resource in NR. An RE spans one OFDM symbol in the time domain via a subcarrier in the frequency domain, such as... Figure 8 As shown. RB spans twelve consecutive REs in the frequency domain, as... Figure 8 As shown. The NR carrier can be limited to a width of 275RB or 275×12=3300 subcarriers. If this limitation is used, the NR carrier can be limited to 50MHz, 100MHz, 200MHz and 400MHz respectively for subcarrier spacing of 15, 30, 60 and 120kHz, where the 400MHz bandwidth can be set based on the limitation of 400MHz bandwidth per carrier.

[0115] Figure 8This describes a single set of parameters used across the entire bandwidth of an NR carrier. In other exemplary configurations, multiple parameter sets can be supported on the same carrier.

[0116] NR can support wide carrier bandwidths (e.g., up to 400MHz for a subcarrier spacing of 120kHz). Not all UEs can receive the full carrier bandwidth (e.g., due to hardware limitations). Moreover, receiving the full carrier bandwidth can be prohibitively expensive in terms of UE power consumption. In one example, to reduce power consumption and / or for other purposes, the UE can adjust the size of its receive bandwidth based on the amount of traffic it is scheduled to receive. This is called bandwidth adaptation.

[0117] The NR defines a Bandwidth Component (BWP) to support UEs that cannot receive the full carrier bandwidth and to support bandwidth adaptation. In one example, a BWP can be defined by a subset of consecutive Relays (RBs) on a carrier. A UE can be configured (e.g., via the RRC layer) to have one or more downlink BWPs and one or more uplink BWPs per serving cell (e.g., up to four downlink BWPs and up to four uplink BWPs per serving cell). At a given time, one or more of the configured BWPs for the serving cell can be active. These one or more BWPs can be referred to as the active BWPs of the serving cell. When the serving cell is configured with a secondary uplink carrier, the serving cell can have one or more first active BWPs on the uplink carrier and one or more second active BWPs on the secondary uplink carrier.

[0118] For unpaired spectrum, if the downlink BWP index of the downlink BWP is the same as the uplink BWP index of the uplink BWP, then the downlink BWP from the configured downlink BWP set can link with the uplink BWP from the configured uplink BWP set. For unpaired spectrum, the UE can expect the center frequency of the downlink BWP to be the same as the center frequency of the uplink BWP.

[0119] For a downlink BWP within the configured downlink BWP set on the primary cell (PCell), the base station can configure a UE with one or more control resource sets (CORESETs) for at least one search space. A search space is a set of locations in the time and frequency domains where the UE can look up control information. The search space can be a UE-specific search space or a shared search space (which may be used by multiple UEs). For example, the base station can configure a shared search space for the UE on the PCell or primary / secondary cell (PSCell) within an active downlink BWP.

[0120] For each uplink BWP in the configured uplink BWP set, the BS can configure one or more resource sets for the UE to use for one or more PUCCH transmissions. The UE can receive downlink receptions (e.g., PDCCH or PDSCH) in the downlink BWP based on the configured parameter set (e.g., subcarrier spacing and cyclic prefix duration) used for the downlink BWP. The UE can transmit uplink transmissions (e.g., PUCCH or PUSCH) in the uplink BWP based on the configured parameter set (e.g., subcarrier spacing and cyclic prefix length of the uplink BWP).

[0121] One or more BWP indicator fields can be provided in the downlink control information (DCI). The value of the BWP indicator field can indicate which BWP in the configured BWP set is the active downlink BWP for one or more downlink receptions. The value of one or more BWP indicator fields can indicate the active uplink BWP for one or more uplink transmissions.

[0122] The base station can semi-statically configure a default downlink BWP for the UE within the set of configured downlink BWPs associated with the PCell. If the base station does not provide a default downlink BWP to the UE, the default downlink BWP can be the initial active downlink BWP. The UE can determine which BWP is the initial active downlink BWP based on the CORESET configuration obtained using the PBCH.

[0123] The base station can configure the BWP inactivity timer value for the UE for the PCell. The UE can start or restart the BWP inactivity timer at any appropriate time. For example, the UE can start or restart the BWP inactivity timer when: (a) the UE detects a DCI indicating an active downlink BWP other than the default downlink BWP for paired spectrum operation; or (b) the UE detects a DCI indicating an active downlink BWP or active uplink BWP other than the default downlink BWP or uplink BWP for unpaired spectrum operation. If the UE does not detect a DCI within a time interval (e.g., 1 ms or 0.5 ms), the UE can run the BWP inactivity timer toward its expiration (e.g., an increment from zero to the BWP inactivity timer value, or a decrement from the BWP inactivity timer value to zero). When the BWP inactivity timer expires, the UE can switch from the active downlink BWP to the default downlink BWP.

[0124] In one example, the base station can semi-statically configure the UE using one or more BWPs. The UE can switch the active BWP from the first BWP to the second BWP in response to receiving a DCI indicating that the second BWP is the active BWP and / or in response to the expiration of a BWP inactivity timer (e.g., in the case that the second BWP is the default BWP).

[0125] Downlink and uplink BWP handovers can be performed independently in paired spectrum (where BWP handover refers to switching from the currently active BWP to a non-currently active BWP). In unpaired spectrum, downlink and uplink BWP handovers can be performed simultaneously. Handovers between configured BWPs can occur based on RRC signaling, DCI, the expiration of a BWP inactivity timer, and / or the initiation of random access.

[0126] Figure 9 This illustrates an example of bandwidth adaptation using three configured BWPs on an NR carrier. A UE configured with three BWPs can switch from one BWP to another at a handover point. Figure 9 In the example described, the BWPs include: BWP902 with a bandwidth of 40MHz and a subcarrier spacing of 15kHz; BWP904 with a bandwidth of 10MHz and a subcarrier spacing of 15kHz; and BWP906 with a bandwidth of 20MHz and a subcarrier spacing of 60kHz. BWP902 can be the initial active BWP, and BWP904 can be the default BWP. The UE can switch between BWPs at a handover point. Figure 9 In the example, the UE can switch from BWP 902 to BWP 904 at handover point 908. The handover at handover point 908 can occur for any suitable reason, such as in response to the expiration of a BWP inactivity timer (indicating a switch to the default BWP) and / or in response to receiving a DCI indicating that BWP 904 is the active BWP. The UE can switch from active BWP 904 to BWP 906 at handover point 910 in response to receiving a DCI indicating that BWP 906 is the active BWP. The UE can switch from active BWP 906 to BWP 904 at handover point 912 in response to the expiration of a BWP inactivity timer and / or in response to receiving a DCI indicating that BWP 904 is the active BWP. The UE can switch from active BWP 904 to BWP 902 at handover point 914 in response to receiving a DCI indicating that BWP 902 is the active BWP.

[0127] If a UE is configured for a secondary cell with default downlink BWP and timer values ​​from the configured downlink BWP set, the UE procedure for switching BWPs on the secondary cell can be the same as / similar to that on the primary cell. For example, the UE can use these values ​​on the secondary cell in the same / similar way as the UE would use the timer values ​​and default downlink BWP of the primary cell.

[0128] To provide higher data rates, carrier aggregation (CA) can be used to combine two or more carriers and transmit them simultaneously to / from the same UE. The aggregated carriers in CA can be referred to as component carriers (CCs). When using CA, there are multiple serving cells for the UE, with one serving cell per CC. A CC can have three configurations in the frequency domain.

[0129] Figure 10A This section describes three CA configurations with two CCs. In the intra-band contiguous configuration 1002, the two CCs are aggregated in the same frequency band (band A) and located directly adjacent to each other within the band. In the intra-band discontinuous configuration 1004, the two CCs are aggregated in a frequency band (band A) and separated by a certain gap within the band. In the inter-band configuration 1006, the two CCs are located in frequency bands (band A and band B).

[0130] In one example, up to 32 CCs can be aggregated. Aggregated CCs can have the same or different bandwidths, subcarrier spacing, and / or duplex schemes (TDD or FDD). The serving cell for the UE using CA can have downlink CCs. For FDD, one or more uplink CCs can optionally be configured for the serving cell. For example, the ability to aggregate more downlink carriers than uplink carriers can be useful when the UE has more data traffic in the downlink than in the uplink.

[0131] When using CA, one of the aggregated cells used for the UE can be referred to as the primary cell (PCell). The PCell can be the serving cell to which the UE initially connects during RRC connection establishment, re-establishment, and / or handover. The PCell provides the UE with NAS mobility information and security input. The UE can have different PCells. In the downlink, the carrier corresponding to the PCell can be referred to as the downlink primary CC (DL PCC). In the uplink, the carrier corresponding to the PCell can be referred to as the uplink primary CC (UL PCC). Other aggregated cells used for the UE can be referred to as secondary cells (SCells). In one example, the SCell can be configured after the PCell is configured for the UE. For example, the SCell can be configured via an RRC connection reconfiguration procedure. In the downlink, the carrier corresponding to the SCell can be referred to as the downlink secondary CC (DLSCC). In the uplink, the carrier corresponding to the SCell can be referred to as the uplink secondary CC (UL SCC).

[0132] The configured SCell for the UE can be activated and deactivated based on factors such as traffic and channel conditions. Deactivating an SCell can mean stopping PDCCH and PDSCH reception on the SCell, and stopping PUSCH, SRS, and CQI transmissions on the SCell. Information about... Figure 4B The MAC CE is used to activate and deactivate configured SCells. For example, the MAC CE can use a bitmap (e.g., one bit per SCell) to indicate which SCells of the UE (e.g., in a subset of configured SCells) are activated or deactivated. Configured SCells can be deactivated in response to the expiration of a SCell deactivation timer (e.g., one SCell deactivation timer per SCell).

[0133] Downlink control information for a cell (such as scheduling assignments and scheduling grants) can be transmitted on the cell corresponding to the assignment and grant, a process known as self-scheduling. A cell's DCI can be transmitted on another cell, a process known as cross-carrier scheduling. Uplink control information used for aggregation cells (e.g., HARQ acknowledgments and channel state feedback, such as CQI, PMI, and / or RI) can be transmitted on the PCell's PUCCH. For a large number of aggregated downlink CCs, the PCell's PUCCH may become overloaded. Cells can be divided into multiple PUCCH groups.

[0134] Figure 10B This illustrates an example of how aggregated cells can be configured into one or more PUCCH groups. PUCCH group 1010 and PUCCH group 1050 can each include one or more downlink CCs. Figure 10BIn the example, PUCCH group 1010 includes three downlink CCs: PCell 1011, SCell 1012, and SCell 1013. PUCCH group 1050 in this example includes three downlink CCs: PCell 1051, SCell 1052, and SCell 1053. One or more uplink CCs can be configured as PCell 1021, SCell 1022, and SCell 1023. One or more other uplink CCs can be configured as primary Scell ​​(PSCell) 1061, SCell 1062, and SCell 1063. Uplink control information (UCI) associated with the downlink CCs of PUCCH group 1010 (shown as UCI 1031, UCI 1032, and UCI 1033) can be transmitted in the uplink of PCell 1021. Uplink control information (UCI) related to the downlink CC of PUCCH group 1050 (shown as UCI 1071, UCI 1072, and UCI 1073) can be transmitted in the uplink of PSCell 1061. In one example, if Figure 10B If the aggregated cell depicted is not divided into PUCCH group 1010 and PUCCH group 1050, a single uplink PCell will transmit UCIs associated with the downlink CC, and the PCell may become overloaded. Overload can be prevented by allocating UCI transmissions between PCell 1021 and PSCell 1061.

[0135] A physical cell ID and a cell index can be assigned to a cell that includes a downlink carrier and an optional uplink carrier. The physical cell ID or cell index can identify the cell's downlink carrier and / or uplink carrier, for example, depending on the context in which the physical cell ID is used. The physical cell ID can be determined using synchronization signals transmitted on the downlink component carrier. The cell index can be determined using RRC messages. In this disclosure, the physical cell ID can be referred to as a carrier ID, and the cell index can be referred to as a carrier index. For example, when this disclosure relates to a first physical cell ID for a first downlink carrier, this disclosure can mean that the first physical cell ID is used for a cell that includes the first downlink carrier. The same / similar concepts can be applied, for example, to carrier activation. When this disclosure indicates that a first carrier is activated, this specification can mean that a cell including the first carrier is activated.

[0136] In CA, the multi-carrier nature of the PHY can be exposed to the MAC. In one example, the HARQ entity can operate on the serving cell. Transport blocks can be generated based on the assignment / authorization of each serving cell. Transport blocks and their potential HARQ retransmissions can be mapped to serving cells.

[0137] In the downlink, the base station can transmit one or more reference signals (RS) (e.g., unicast, multicast, and / or broadcast) to the UE (e.g., PSS, SSS, CSI-RS, DMRS, and / or PT-RS, such as...). Figure 5A (As shown). In the uplink, the UE can transmit one or more RSs to the base station (e.g., DMRS, PT-RS, and / or SRS, such as...). Figure 5B (As shown). PSS and SSS can be transmitted by the base station and used by the UE to synchronize the UE with the base station. PSS and SSS can be provided in a synchronization signal (SS) / physical broadcast channel (PBCH) block that includes PSS, SSS, and PBCH. The base station can periodically transmit bursts of SS / PBCH blocks.

[0138] Figure 11A This example illustrates the structure and location of SS / PBCH blocks. A burst of SS / PBCH blocks can include one or more SS / PBCH blocks (e.g., four SS / PBCH blocks, such as...). Figure 11A (As shown). Bursts can be transmitted periodically (e.g., every 2 frames or 20 ms). Bursts can be limited to half-frames (e.g., the first half-frame lasting 5 ms). It should be understood that... Figure 11A This is an example, and these parameters (the number of SS / PBCH blocks per burst, the periodicity of the burst, the burst location within a frame) can be configured based on, for example, the carrier frequency of the cell in which the SS / PBCH blocks are transmitted; the cell's parameter set or subcarrier spacing; configuration performed by the network (e.g., using RRC signaling); or any other suitable factor. In one example, the UE may assume the subcarrier spacing of the SS / PBCH blocks based on the carrier frequency being monitored, unless the radio network configures the UE to assume a different subcarrier spacing.

[0139] SS / PBCH blocks can span one or more OFDM symbols in the time domain (e.g., 4 OFDM symbols, such as...). Figure 11A As shown in the example, and can span one or more subcarriers in the frequency domain (e.g., 240 consecutive subcarriers). PSS, SSS, and PBCH can have a common center frequency. PSS can be transmitted first and can span, for example, 1 OFDM symbol and 127 subcarriers. SSS can be transmitted after PSS (e.g., after two symbols) and can span 1 OFDM symbol and 127 subcarriers. PBCH can be transmitted after PSS (e.g., spanning the next 3 OFDM symbols) and can span 240 subcarriers.

[0140] The UE may not know the location of the SS / PBCH block in the time and frequency domains (e.g., when the UE is searching for a cell). To find and select a cell, the UE can monitor the carrier of the PSS. For example, the UE can monitor the frequency location within the carrier. If the PSS is not found after a certain duration (e.g., 20 ms), the UE can search for the PSS at different frequency locations within the carrier, as indicated by the synchronization grating. If the PSS is found at a certain location in the time and frequency domains, the UE can determine the location of the SSS and PBCH based on the known structure of the SS / PBCH block, respectively. The SS / PBCH block can be a cell-defined SS block (CD-SSB). In one example, the primary cell can be associated with a CD-SSB. The CD-SSB can be located on a synchronization grating. In one example, cell selection / search and / or reselection can be based on the CD-SSB.

[0141] The SS / PBCH block can be used by the UE to determine one or more parameters of the cell. For example, the UE can determine the Physical Cell Identifier (PCI) of the cell based on the sequence of the PSS and SSS, respectively. The UE can determine the location of the cell's frame boundary based on the location of the SS / PBCH block. For example, the SS / PBCH block can indicate that it has been transmitted according to a transmission mode, where the SS / PBCH block in the transmission mode is at a known distance from the frame boundary.

[0142] The PBCH can use QPSK modulation and forward error correction (FEC). FEC can use polarity coding. One or more symbols spanned by the PBCH can carry one or more DMRS for PBCH demodulation. The PBCH can include an indication of the cell's current system frame number (SFN) and / or an SS / PBCH block timing index. These parameters can help the UE synchronize time with the base station. The PBCH can include a Master Information Block (MIB) to provide one or more parameters to the UE. The MIB can be used by the UE to locate the Residual Minimum System Information (RMSI) associated with the cell. The RMSI can include System Information Block Type 1 (SIB1). SIB1 can contain information required for the UE to access the cell. The UE can use one or more parameters of the MIB to monitor the PDCCH that can be used to schedule the PDSCH. The PDSCH can include SIB1. SIB1 can be decoded using the parameters provided in the MIB. The PBCH can indicate that SIB1 does not exist. Based on the PBCH indicating that SIB1 does not exist, the UE can point to a frequency. The UE can search for SS / PBCH blocks at the frequency pointed to by the UE.

[0143] The UE may assume that one or more SS / PBCH blocks transmitted using the same SS / PBCH block index are quasi-co-located (QCLed) (e.g., having the same / similar Doppler spread, Doppler shift, average gain, average delay, and / or spatial Rx parameters). The UE may not assume QCL for SS / PBCH blocks transmitted with different SS / PBCH block indices.

[0144] SS / PBCH blocks (e.g., those within a half-frame) can be transmitted in spatial directions (e.g., using different beams across the coverage area of ​​the cell). In one example, a first SS / PBCH block can be transmitted in a first spatial direction using a first beam, and a second SS / PBCH block can be transmitted in a second spatial direction using a second beam.

[0145] In one example, within the frequency range of the carrier, the base station can transmit multiple SS / PBCH blocks. In one example, the first PCI of the first SS / PBCH block among the multiple SS / PBCH blocks may be different from the second PCI of the second SS / PBCH block among the multiple SS / PBCH blocks. The PCIs of SS / PBCH blocks transmitted at different frequency locations may be different or the same.

[0146] CSI-RS can be transmitted by the base station and used by the UE to acquire Channel State Information (CSI). The base station can utilize one or more CSI-RS to configure the UE for channel estimation or any other suitable purpose. The base station can utilize one or more of the same / similar CSI-RS to configure the UE. The UE can measure one or more CSI-RS. The UE can estimate the downlink channel state and / or generate a CSI report based on the measurements of one or more downlink CSI-RS. The UE can provide the CSI report to the base station. The base station can use the feedback provided by the UE (e.g., estimated downlink channel state) to perform link adaptation.

[0147] The base station can semi-statically configure the UE using one or more CSI-RS resource sets. CSI-RS resources can be associated with location and periodicity in the time and frequency domains. The base station can selectively activate and / or deactivate CSI-RS resources. The base station can instruct the UE that CSI-RS resources in the CSI-RS resource set are activated and / or deactivated.

[0148] The base station can configure the UE to report CSI measurements. The base station can configure the UE to provide CSI reports periodically, non-periodically, or semi-persistently. For periodic CSI reporting, the UE can be configured with multiple CSI reports at specific times and / or periodically. For non-periodic CSI reporting, the base station can request CSI reports. For example, the base station can command the UE to measure configured CSI-RS resources and provide CSI reports related to the measurements. For semi-persistent CSI reporting, the base station can configure the UE to transmit periodically and selectively activate or deactivate periodic reports. The base station can configure the UE using CSI-RS resource sets and CSI reports using RRC signaling.

[0149] CSI-RS configuration may include one or more parameters indicating, for example, up to 32 antenna ports. The UE can be configured to use the same OFDM symbols for both the downlink CSI-RS and the control resource set (CORESET) when the downlink CSI-RS and CORESET are spatially QCLed and the resource elements associated with the downlink CSI-RS are outside the physical resource block (PRB) configured for the CORESET. The UE can also be configured to use the same OFDM symbols for both the downlink CSI-RS and the SS / PBCH block when the downlink CSI-RS and SS / PBCH block are spatially QCLed and the resource elements associated with the downlink CSI-RS are outside the PRB configured for the SS / PBCH block.

[0150] Downlink DMRS can be transmitted by the base station and used by the UE for channel estimation. For example, downlink DMRS can be used for consistent demodulation of one or more downlink physical channels (e.g., PDSCH). The NR network can support one or more variable and / or configurable DMRS modes for data demodulation. At least one downlink DMRS configuration can support a frontload DMRS mode. Frontload DMRS can be mapped on one or more OFDM symbols (e.g., one or two adjacent OFDM symbols). The base station can semi-statically configure the UE using the number (e.g., maximum number) of frontload DMRS symbols used for PDSCH. A DMRS configuration can support one or more DMRS ports. For example, for single-user MIMO, a DMRS configuration can support up to eight orthogonal downlink DMRS ports per UE. For multi-user MIMO, a DMRS configuration can support up to four orthogonal downlink DMRS ports per UE. Radio networks can (e.g., at least for CP-OFDM) support a common DMRS structure for downlink and uplink, where DMRS locations, DMRS types, and / or scrambling sequences can be the same or different. Base stations can transmit downlink DMRS and corresponding PDSCHs using the same precoding matrix. UEs can use one or more downlink DMRSs to perform consistent demodulation / channel estimation of the PDSCH.

[0151] In one example, a transmitter (e.g., a base station) may use a precoder matrix for a portion of the transmission bandwidth. For instance, the transmitter may use a first precoder matrix for a first bandwidth and a second precoder matrix for a second bandwidth. The first and second precoder matrices may differ based on the first and second bandwidths being different. The UE may assume that the same precoder matrix is ​​used across the PRB set. The PRB set may be represented as a Precoded Resource Block Group (PRG).

[0152] A PDSCH may include one or more layers. The UE may assume that at least one symbol with DMRS exists on one or more layers of the PDSCH. Higher layers can configure up to three DMRS for the PDSCH.

[0153] Downlink PT-RS can be transmitted by the base station and used by the UE for phase noise compensation. The presence of downlink PT-RS can depend on RRC configuration. The presence and / or type of downlink PT-RS can be configured based on the UE using a combination of RRC signaling and / or association with one or more parameters that can be indicated by the DCI for other purposes (e.g., modulation and coding scheme (MCS)). When configured, the dynamic presence of downlink PT-RS can be associated with one or more DCI parameters including at least one MCS. NR networks can support multiple PT-RS densities defined in the time / frequency domain. When present, the frequency domain density can be associated with at least one configuration of the scheduled bandwidth. The UE can use the same precoding for both DMRS ports and PT-RS ports. The number of PT-RS ports can be less than the number of DMRS ports in the scheduled resources. Downlink PT-RS can be limited to the UE's scheduled time / frequency duration. Downlink PT-RS can be transmitted on symbols to facilitate phase tracking at the receiver.

[0154] The UE can transmit uplink DMRS to the base station for channel estimation. For example, the base station can use uplink DMRS to perform consistent demodulation of one or more uplink physical channels. For example, the UE can transmit uplink DMRS with PUSCH and / or PUCCH. Uplink DMRS can span a frequency range similar to the frequency range associated with the corresponding physical channel. The base station can configure the UE using one or more uplink DMRS configurations. At least one DMRS configuration can support a frontload DMRS mode. Frontload DMRS can be mapped on one or more OFDM symbols (e.g., one or two adjacent OFDM symbols). One or more uplink DMRS can be configured to be transmitted at one or more symbols of PUSCH and / or PUCCH. The base station can semi-statically configure the UE with the number of frontload DMRS symbols of PUSCH and / or PUCCH (e.g., a maximum number), which the UE can use to schedule single-symbol DMRS and / or dual-symbol DMRS. NR networks can support (e.g., for Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM)) a common DMRS structure for both downlink and uplink, where the DMRS location, DMRS type, and / or scrambling sequence of the DMRS can be the same or different.

[0155] A PUSCH may include one or more layers, and a UE may transmit at least one symbol having DMRS on one or more layers present in the PUSCH. In one example, a higher layer may configure up to three DMRS for the PUSCH.

[0156] Depending on the UE's RRC configuration, the uplink PT-RS (which can be used by the base station for phase tracking and / or phase noise compensation) may or may not be present. The presence and / or type of the uplink PT-RS can be configured based on the UE through a combination of RRC signaling and / or one or more parameters indicated by the DCI for other purposes (e.g., modulation and coding scheme (MCS)). When configured, the dynamic presence of the uplink PT-RS can be associated with one or more DCI parameters including at least one MCS. The radio network can support multiple uplink PT-RS densities defined in the time / frequency domain. When present, the frequency domain density can be associated with at least one configuration of the scheduled bandwidth. The UE can use the same precoding for both DMRS ports and PT-RS ports. The number of PT-RS ports can be less than the number of DMRS ports in the scheduled resources. For example, the uplink PT-RS can be restricted to the duration of the UE's scheduled time / frequency.

[0157] The UE can transmit SRS to the base station for channel state estimation to support uplink channel-dependent scheduling and / or link adaptation. The SRS transmitted by the UE allows the base station to estimate the uplink channel state at one or more frequencies. The scheduler at the base station can use the estimated uplink channel state to assign one or more resource blocks for uplink PUSCH transmissions from the UE. The base station can semi-statically configure the UE using one or more SRS resource sets. For each SRS resource set, the base station can configure the UE using one or more SRS resources. SRS resource set suitability can be configured by higher-layer (e.g., RRC) parameters. For example, when higher-layer parameters indicate beam management, SRS resources in one or more SRS resource sets (e.g., having the same / similar time-domain behavior, periodic, aperiodic, etc.) can be transmitted at certain times (e.g., simultaneously). The UE can transmit one or more SRS resources from the SRS resource set. The NR network can support aperiodic, periodic, and / or semi-persistent SRS transmissions. The UE can transmit SRS resources based on one or more trigger types, wherein the one or more trigger types may include higher-layer signaling (e.g., RRC) and / or one or more DCI formats. In one example, at least one DCI format may be used for the UE to select at least one configured SRS resource set from one or more configured SRS resource sets. SRS trigger type 0 may refer to SRS triggered based on higher-layer signaling. SRS trigger type 1 may refer to SRS triggered based on one or more DCI formats. In one example, when PUSCH and SRS are transmitted in the same time slot, the UE may be configured to transmit SRS after the transmission of PUSCH and the corresponding uplink DMRS.

[0158] The base station can semi-statically configure the UE using one or more SRS configuration parameters indicating at least one of the following: SRS resource configuration identifier; number of SRS ports; temporal behavior of SRS resource configuration (e.g., indication of periodic, semi-persistent, or aperiodic SRS); time slot, micro-time slot, and / or subframe level periodicity; time slots of periodic and / or aperiodic SRS resources; number of OFDM symbols in SRS resources; initiating OFDM symbols for SRS resources; SRS bandwidth; frequency hopping bandwidth; cyclic shift; and / or SRS sequence ID.

[0159] An antenna port is defined such that a symbol on the antenna port, through the channel through which it is transmitted, can be inferred from another symbol on the same antenna port, through the same channel through which it is transmitted. If a first symbol and a second symbol are transmitted on the same antenna port, the receiver can infer the channel used to transmit the second symbol on the antenna port (e.g., fade gain, multipath delay, etc.) from the channel used to transmit the first symbol on the antenna port. A first antenna port and a second antenna port can be referred to as quasi-co-located (QCLed) if one or more large-scale properties allow the channel through which the first symbol on the first antenna port is transmitted to be inferred from the channel through which the second symbol on the second antenna port is transmitted. One or more large-scale properties can include at least one of the following: delay spread; Doppler spread; Doppler shift; average gain; average delay; and / or spatial reception (Rx) parameters.

[0160] Channels using beamforming require beam management. Beam management can include beam measurement, beam selection, and beam indication. A beam can be associated with one or more reference signals. For example, a beam can be identified by one or more beamforming reference signals. The UE can perform downlink beam measurements and generate a beam measurement report based on downlink reference signals (e.g., Channel State Information Reference Signal (CSI-RS)). After setting up an RRC connection with the base station, the UE can perform the downlink beam measurement procedure.

[0161] Figure 11B An example of a Channel State Information Reference Signal (CSI-RS) mapped in the time and frequency domains is illustrated. Figure 11BThe square shown may represent a resource block (RB) within the cell's bandwidth. The base station may transmit one or more RRC messages including CSI-RS resource configuration parameters indicating one or more CSI-RS. One or more of the following parameters can be configured for CSI-RS resource configuration via higher-layer signaling (e.g., RRC and / or MAC signaling): CSI-RS resource configuration identity, number of CSI-RS ports, CSI-RS configuration (e.g., symbol and resource element (RE) positions in subframes), CSI-RS subframe configuration (e.g., subframe position, offset, and periodicity in radio frames), CSI-RS power parameters, CSI-RS sequence parameters, Code Division Multiplexing (CDM) type parameters, frequency density, transport comb, Quasi-Co-location (QCL) parameters (e.g., QCL-scramblingidentity, crs-portscount, mbsfn-subframeconfiglist, csi-rs-configZPid, qcl-csi-rs-configNZPid), and / or other radio resource parameters.

[0162] Figure 11B The three beams described can be configured for use in a UE-specific configuration. Figure 11B The document describes three beams (beam #1, beam #2, and beam #3), with the possibility of configuring more or fewer beams. CSI-RS 1101 can be assigned to beam #1, which can be transmitted on one or more subcarriers in the RB of the first symbol. CSI-RS 1102 can be assigned to beam #2, which can be transmitted on one or more subcarriers in the RB of the second symbol. CSI-RS 1103 can be assigned to beam #3, which can be transmitted on one or more subcarriers in the RB of the third symbol. By using frequency division multiplexing (FDM), the base station can use other subcarriers in the same RB (e.g., those not used to transmit CSI-RS 1101) to transmit another CSI-RS associated with a beam of another UE. By using time domain multiplexing (TDM), the beam for a UE can be configured such that the beam for the UE uses symbols from beams of other UEs.

[0163] CSI-RS, such as Figure 11BThe CSI-RSs described herein (e.g., CSI-RS 1101, 1102, 1103) can be transmitted by the base station and used by the UE for one or more measurements. For example, the UE can measure the Reference Signal Received Power (RSRP) of the configured CSI-RS resources. The base station can configure the UE using a reporting configuration, and the UE can report RSRP measurements to the network based on the reporting configuration (e.g., via one or more base stations). In one example, the base station can determine one or more Transmission Configuration Indication (TCI) states, including multiple reference signals, based on the reported measurement results. In one example, the base station can indicate one or more TCI states to the UE (e.g., via RRC signaling, MAC CE, and / or DCI). The UE can receive downlink transmissions with receive (Rx) beams determined based on one or more TCI states. In one example, the UE may or may not have beam mapping capability. If the UE has beam mapping capability, the UE can determine the spatial filter for the transmit (Tx) beam based on the spatial filter corresponding to the Rx beam. If the UE does not have beam correspondence capability, the UE can perform an uplink beam selection procedure to determine the spatial filter of the Tx beam. The UE can perform the uplink beam selection procedure based on one or more Sounding Reference Signal (SRS) resources configured for the UE by the base station. The base station can select and indicate the UE's uplink beam based on measurements of one or more SRS resources transmitted by the UE.

[0164] In the beam management procedure, the UE can assess (e.g., measure) the channel quality of one or more beampup links, including beampup links containing transmit beams transmitted by the base station, and receive beams received by the UE. Based on the assessment, the UE can transmit a beam measurement report indicating one or more beampup quality parameters, including, for example, one or more beam identifiers (e.g., beam index, reference signal index, etc.), RSRP, precoding matrix indicator (PMI), channel quality indicator (CQI), and / or rank indicator (RI).

[0165] Figure 12AExamples of three downlink beam management procedures are illustrated: P1, P2, and P3. Procedure P1 can enable UE measurement of the transmit (Tx) beams for a Transport Receive Point (TRP) (or multiple TRPs), for example, to support the selection of one or more base station Tx beams and / or UE Rx beams (shown as ellipses in the top and bottom rows of P1, respectively). Beamforming at the TRP can include Tx beam sweeping for the beam set (shown as an ellipse rotating counterclockwise in the top rows of P1 and P2, indicated by the dashed arrows). Beamforming at the UE can include Rx beam sweeping for the beam set (shown as an ellipse rotating clockwise in the bottom rows of P1 and P3, indicated by the dashed arrows). Procedure P2 can be used to enable UE measurement of the Tx beams for a TRP (shown as an ellipse rotating counterclockwise in the top row of P2, indicated by the dashed arrows). The UE and / or base station may perform procedure P2 using a smaller beam set than that used in procedure P1, or using a narrower beam set than that used in procedure P1. This may be referred to as beam refinement. The UE may perform procedure P3 for Rx beam determination by using the same Tx beam at the base station and sweeping the Rx beam at the UE.

[0166] Figure 12B Examples of three uplink beam management procedures are illustrated: U1, U2, and U3. Procedure U1 can be used to enable the base station to perform measurements on the UE's Tx beam, for example, to support the selection of one or more UE Tx beams and / or base station Rx beams (shown as ellipses in the top and bottom rows of U1, respectively). Beamforming at the UE can include, for example, an Rx beam sweep from the beam set (shown as an ellipse rotating clockwise in the bottom rows of U1 and U3, indicated by the dashed arrow). Beamforming at the base station can include, for example, an Rx beam sweep from the beam set (shown as an ellipse rotating counterclockwise in the top rows of U1 and U2, indicated by the dashed arrow). When the UE uses a fixed Tx beam, procedure U2 can be used to enable the base station to adjust its Rx beam. The UE and / or base station can perform procedure U2 using a smaller beam set than that used in procedure P1, or using a narrower beam than that used in procedure P1. This can be called beam refinement. The UE can execute procedure U3 to adjust its Tx beam when the base station is using a fixed Rx beam.

[0167] The UE can initiate a beam fault recovery (BFR) procedure based on the detection of a beam fault. The UE can transmit a BFR request (e.g., preamble, UCI, SR, MAC CE, etc.) based on the initiation of the BFR procedure. The UE can detect a beam fault based on the determination that the quality of the beam pair link in the associated control channel is unsatisfactory (e.g., an error rate higher than the error rate threshold, received signal power lower than the received signal power threshold, timer expiration, etc.).

[0168] The UE can use one or more reference signals (RS) to measure the quality of the beamp-link, including one or more SS / PBCH blocks, one or more CSI-RS resources, and / or one or more demodulation reference signals (DMRS). The quality of the beamp-link can be based on one or more of the following: block error rate (BLER), RSRP value, signal-to-interference-plus-noise ratio (SINR) value, reference signal reception quality (RSRQ) value, and / or CSI value measured on the RS resources. The base station can indicate one or more DM-RS quasi-co-located (QCLed) RS resources and channels (e.g., control channels, shared data channels, etc.). One or more DMRS of RS resources and channels can be QCLed when the channel characteristics from transmissions to the UE via RS resources (e.g., Doppler shift, Doppler spread, average delay, delay spread, spatial Rx parameter, fading, etc.) are similar to or the same as the channel characteristics from transmissions to the UE via channels.

[0169] The network (e.g., gNB and / or the network's ng-eNB) and / or the UE can initiate a random access procedure. A UE in the RRC_IDLE state and / or RRC_INACTIVE state can initiate a random access procedure to request connection settings to the network. A UE can initiate a random access procedure from the RRC_CONNECTED state. A UE can initiate a random access procedure to request uplink resources (e.g., for uplink transmission of SR when no PUCCH resources are available) and / or to acquire uplink timing (e.g., when the uplink synchronization state is not synchronized). A UE can initiate a random access procedure to request one or more System Information Blocks (SIBs) (e.g., other system information such as SIB2, SIB3, etc.). A UE can initiate a random access procedure for beam fault recovery requests. The network can initiate random access procedures for handover and / or for establishing time comparisons for SCell additions.

[0170] Figure 13A This describes a four-step contention-based random access procedure. Before initiating this procedure, the base station may transmit configuration message 1310 to the UE. Figure 13AThe described procedure involves the transmission of four messages: Msg 1 1311, Msg 2 1312, Msg 3 1313, and Msg 4 1314. Msg 1 1311 may include and / or be referred to as a preamble (or random access preamble). Msg 2 1312 may include and / or be referred to as a random access response (RAR).

[0171] Configuration message 1310 may be transmitted, for example, using one or more RRC messages. These one or more RRC messages may indicate one or more Random Access Channel (RACH) parameters to the UE. The one or more RACH parameters may include at least one of the following: general parameters for one or more random access procedures (e.g., RACH-configGeneral); cell-specific parameters (e.g., RACH-ConfigCommon); and / or dedicated parameters (e.g., RACH-configDedicated). The base station may broadcast or multicast the one or more RRC messages to one or more UEs. The one or more RRC messages may be UE-specific (e.g., dedicated RRC messages transmitted to UEs in the RRC_CONNECTED state and / or the RRC_INACTIVE state). The UE may determine the time and frequency resources and / or uplink transmission power for transmitting Msg 1 1311 and / or Msg 3 1313 based on the one or more RACH parameters. Based on the one or more RACH parameters, the UE may determine the receive timing and downlink channel for receiving Msg 2 1312 and Msg 4 1314.

[0172] One or more RACH parameters provided in configuration message 1310 may indicate one or more physical RACH (PRACH) timings available for transmitting Msg 1 1311. One or more PRACH timings may be predefined. One or more RACH parameters may indicate one or more available sets of one or more PRACH timings (e.g., prach-ConfigIndex). One or more RACH parameters may indicate the association between (a) one or more PRACH timings and (b) one or more reference signals. One or more RACH parameters may indicate the association between (a) one or more preambles and (b) one or more reference signals. One or more reference signals may be SS / PBCH blocks and / or CSI-RS. For example, one or more RACH parameters may indicate the number of SS / PBCH blocks mapped to PRACH timings and / or the number of preambles mapped to SS / PBCH blocks.

[0173] One or more RACH parameters provided in configuration message 1310 can be used to determine the uplink transmission power of Msg 1 1311 and / or Msg 3 1313. For example, one or more RACH parameters can indicate a reference power for preamble transmission (e.g., the received target power and / or the initial power of the preamble transmission). One or more power offsets indicated by one or more RACH parameters may exist. For example, one or more RACH parameters can indicate: power ramp step size; power offset between SSB and CSI-RS; power offset between transmissions of Msg 1 1311 and Msg 3 1313; and / or power offset values ​​between preamble groups. One or more RACH parameters can indicate one or more thresholds upon which the UE can determine at least one reference signal (e.g., SSB and / or CSI-RS) and / or uplink carrier (e.g., normal uplink (NUL) carrier and / or supplementary uplink (SUL) carrier).

[0174] Msg 1 1311 may include one or more preamble transmissions (e.g., preamble transmission and one or more preamble retransmissions). The RRC message may be used to configure one or more preamble groups (e.g., group A and / or group B). A preamble group may include one or more preambles. The UE may determine the preamble group based on path loss measurements and / or the magnitude of Msg 3 1313. The UE may measure the RSRP of one or more reference signals (e.g., SSB and / or CSI-RS) and determine at least one reference signal with an RSRP higher than an RSRP threshold (e.g., rsrp-ThresholdSSB and / or rsrp-ThresholdCSI-RS). For example, if the association between one or more preambles and at least one reference signal is configured by the RRC message, the UE can select at least one preamble associated with said one or more reference signals and / or the selected preamble group.

[0175] The UE can determine the preamble based on one or more RACH parameters provided in configuration message 1310. For example, the UE can determine the preamble based on path loss measurements, RSRP measurements, and / or the magnitude of Msg 3 1313. As another example, one or more RACH parameters can indicate: the preamble format; the maximum number of preamble transmissions; and / or one or more thresholds for determining one or more preamble groups (e.g., group A and group B). The base station can use one or more RACH parameters to configure an association between one or more preambles and one or more reference signals (e.g., SSB and / or CSI-RS) for the UE. If the association is configured, the UE can determine the preamble included in Msg 1 1311 based on the association. Msg 1 1311 can be transmitted to the base station via one or more PRACH timings. The UE can use one or more reference signals (e.g., SSB and / or CSI-RS) for selecting the preamble and for determining the PRACH timing. One or more RACH parameters (e.g., ra-ssb-OccasionMskIndex and / or ra-OccasionList) can indicate the association between the PRACH timing and one or more reference signals.

[0176] If no response is received after the preamble transmission, the UE may perform a preamble retransmission. The UE may increase the uplink transmission power used for the preamble retransmission. The UE may select the initial preamble transmission power based on path loss measurements and / or the target received preamble power configured by the network. The UE may determine the preamble to be retransmitted and may ramp up the uplink transmission power. The UE may receive one or more RACH parameters (e.g., PREAMBLE_POWER_RAMPING_STEP) indicating the ramp step size used for the preamble retransmission. The ramp step size may be the amount by which the uplink transmission power used for the retransmission is incrementally increased. If the UE determines that the same reference signal (e.g., SSB and / or CSI-RS) is used as in the previous preamble transmission, the UE may ramp up the uplink transmission power. The UE may count the number of preamble transmissions and / or retransmissions (e.g., PREAMBLE_TRANSMISSION_COUNTER). For example, if the number of preamble transmissions exceeds a threshold configured by one or more RACH parameters (e.g., preambleTransMax), the UE can determine that the random access procedure has not been successfully completed.

[0177] The Msg 2 1312 received by the UE may include a RAR. In some scenarios, Msg 2 1312 may include multiple RARs corresponding to multiple UEs. Msg 2 1312 may be received after or in response to the transmission of Msg 1 1311. Msg 2 1312 may be scheduled on the DL-SCH and indicated on the PDCCH using a Random Access RNTI (RA-RNTI). Msg 2 1312 may indicate that Msg 1 1311 was received by the base station. Msg 2 1312 may include a time comparison command that the UE can use to adjust the transmission timing of the UE, a scheduling grant for transmitting Msg 3 1313, and / or a Temporary Cell RNTI (TC-RNTI). After transmitting the preamble, the UE may initiate a time window (e.g., ra-ResponseWindow) to monitor the PDCCH of Msg 2 1312. The UE may determine when to initiate the time window based on the PRACH timing used by the UE to transmit the preamble. For example, a UE can initiate a time window of one or more symbols after the last symbol of the preamble (e.g., at the first PDCCH timing starting from the end of the preamble transmission). One or more symbols can be determined based on a set of parameters. The PDCCH can be in a common search space configured by RRC messages (e.g., a Type 1-PDCCH common search space). The UE can identify the RAR based on a Radio Network Temporary Identifier (RNTI). The RNTI can be used depending on one or more events that initiate a random access procedure. The UE can use a Random Access RNTI (RA-RNTI). The RA-RNTI can be associated with the PRACH timing in which the UE transmits the preamble. For example, the UE can determine the RA-RNTI based on: an OFDM symbol index; a time slot index; a frequency domain index; and / or a UL carrier indicator for the PRACH timing. Examples of RA-RNTIs include:

[0178] RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id,

[0179] Where s_id can be the index of the first OFDM symbol of the PRACH timing (e.g., 0 ≤ s_id < 14), t_id can be the index of the first slot of the PRACH timing in the system frame (e.g., 0 ≤ t_id < 80), f_id can be the index of the PRACH timing in the frequency domain (e.g., 0 ≤ f_id < 8), and ul_carrier_id can be the UL carrier used for preamble transmission (e.g., 0 for NUL carriers and 1 for SUL carriers).

[0180] The UE may transmit Msg 3 1313 in response to successful reception of Msg 2 1312 (e.g., using the resource identified in Msg 2 1312). Msg 3 1313 can be used for, for example... Figure 13A Contention resolution in contention-based random access procedures is described in this paper. In some scenarios, multiple UEs may transmit the same preamble to the base station, and the base station may provide a RAR corresponding to each UE. If multiple UEs interpret the RAR as corresponding to themselves, a conflict may occur. Contention resolution (e.g., using Msg 3 1313 and Msg 4 1314) can be used to increase the likelihood that a UE will not mistakenly use the identity of another UE. To perform contention resolution, the UE may include the device identifier in Msg 3 1313 (e.g., the TC-RNTI included in Msg 2 1312 if a C-RNTI is assigned and / or any other suitable identifier).

[0181] Msg 4 1314 can be received after or in response to the transmission of Msg 3 1313. If Msg 3 1313 includes a C-RNTI, the base station will use the C-RNTI to address the UE on the PDCCH. If the UE's unique C-RNTI is detected on the PDCCH, the random access procedure is determined to have been successfully completed. If Msg 3 1313 includes a TC-RNTI (e.g., if the UE is in an RRC_IDLE state or is not otherwise connected to the base station), Msg 4 1314 will be received using the DL-SCH associated with the TC-RNTI. If the MAC PDU is successfully decoded, and the MAC PDU includes a UE contention resolution identity MAC CE that matches (e.g., is transmitted) the CCCH SDU sent in Msg 3 1313, the UE can determine that contention resolution was successful and / or the UE can determine that the random access procedure was successfully completed.

[0182] The UE can be configured with Supplemental Uplink (SUL) carriers and Normal Uplink (NUL) carriers. Initial access (e.g., random access procedure) can be supported on the uplink carriers. For example, the base station can configure two separate RACH configurations for the UE: one for the SUL carrier and the other for the NUL carrier. To enable random access in a cell configured with an SUL carrier, the network can indicate which carrier (NUL or SUL) to use. For example, the UE can determine the SUL carrier if the measured quality of one or more reference signals is below a broadcast threshold. Uplink transmissions of the random access procedure (e.g., Msg 1 1311 and / or Msg 3 1313) can be preserved on the selected carrier. In one or more cases, the UE can switch uplink carriers during the random access procedure (e.g., between Msg 1 1311 and Msg 3 1313). For example, the UE can determine and / or switch uplink carriers for Msg 1 1311 and / or Msg3 1313 based on channel clarity assessment (e.g., listen before speaking).

[0183] Figure 13B This describes a two-step, contention-free random access procedure. Figure 13A The four-step contention-based random access procedure described is similar, and the base station can transmit configuration message 1320 to the UE before the procedure is initiated. Configuration message 1320 may be similar to configuration message 1310 in some respects. Figure 13B The described procedure involves the transmission of two messages: Msg 1 1321 and Msg 2 1322. Msg 1 1321 and Msg 2 1322 can be similar in some respects to... Figure 13A The Msg 1 1311 and Msg 2 1312 described. (As from...) Figure 13A and Figure 13B It will be understood that a contention-free random access procedure may not include messages such as Msg 31313 and / or Msg 4 1314.

[0184] It can be initiated for beam fault recovery, other SI requests, SCell addition and / or handover. Figure 13B The described contention-free random access procedure. For example, the base station may indicate or assign a preamble to the UE for Msg 1 1321. The UE may receive the preamble indication (e.g., ra-PreambleIndex) from the base station via PDCCH and / or RRC.

[0185] After transmitting the preamble, the UE can initiate a time window (e.g., ra-ResponseWindow) to monitor the PDCCH of the RAR. In the event of a beam failure recovery request, the base station can configure the UE with a separate time window and / or a separate PDCCH within the search space indicated by the RRC message (e.g., recoverySearchSpaceId). The UE can monitor the PDCCH transmission of the Cell RNTI (C-RNTI) addressed to the search space. Figure 13B In the described contention-free random access procedure, the UE can determine that the random access procedure was successfully completed after or in response to the transmission of Msg 1 1321 and the reception of the corresponding Msg 2 1322. For example, if the PDCCH transmission addresses to the C-RNTI, the UE can determine that the random access procedure was successfully completed. For example, if the UE receives a RAR including a preamble identifier corresponding to the preamble transmitted by the UE and / or the RAR includes a MAC sub-PDU with a preamble identifier, the UE can determine that the random access procedure was successfully completed. The UE can determine that the response is an indication of confirmation of the SI request.

[0186] Figure 13C This describes another two-step random access procedure. (And...) Figure 13A and Figure 13B Similar to the described random access procedure, the base station can transmit configuration message 1330 to the UE before the procedure is initiated. Configuration message 1330 may be similar in some respects to configuration message 1310 and / or configuration message 1320. Figure 13C The described procedure involves the transmission of two messages: Msg A1331 and Msg B1332.

[0187] Msg A 1331 can be transmitted by the UE in an uplink transmission. Msg A 1331 may include one or more transmissions of preamble 1341 and / or one or more transmissions of transport block 1342. Transport block 1342 may include... Figure 13A The content shown in Msg 3 1313 is similar to and / or equivalent to that of Msg 3 1313. Transport block 1342 may include UCIs (e.g., SR, HARQ ACK / NACK, etc.). The UE may receive Msg B 1332 after or in response to the transmission of Msg A 1331. Msg B 1332 may include content similar to and / or equivalent to that shown in Msg 3 1313. Figure 13A and Figure 13B The Msg 2 1312 (e.g., RAR) and / or Figure 13A The content described is similar to and / or equivalent to Msg 41314.

[0188] UE can initiate [activities] on licensed spectrum and / or unlicensed spectrum. Figure 13C The two-step random access procedure is used. The UE may determine whether to initiate a two-step random access procedure based on one or more factors. The one or more factors may be: the radio access technology being used (e.g., LTE, NR, etc.); whether the UE has a valid TA; cell size; the UE's RRC status; the type of spectrum (e.g., licensed vs. unlicensed); and / or any other suitable factors.

[0189] The UE can determine the radio resources and / or uplink transmission power of the preamble 1341 and / or transport block 1342 included in Msg A 1331 based on the two-step RACH parameters included in configuration message 1330. The RACH parameters can indicate the modulation and coding scheme (MCS), time-frequency resources, and / or power control of the preamble 1341 and / or transport block 1342. The time-frequency resources (e.g., PRACH) for the transmission of the preamble 1341 and the time-frequency resources (e.g., PUSCH) for the transmission of the transport block 1342 can be multiplexed using FDM, TDM, and / or CDM. The RACH parameters enable the UE to determine the receive timing and downlink channel for monitoring and / or receiving Msg B 1332.

[0190] Transport block 1342 may include data (e.g., delay-sensitive data), a UE identifier, security information, and / or device information (e.g., International Mobile Subscriber Identity (IMSI)). The base station may transmit Msg B 1332 as a response to Msg A 1331. Msg B 1332 may include at least one of the following: a preamble identifier; a timing advanced command; a power control command; an uplink grant (e.g., radio resource assignment and / or MCS); a UE identifier for contention resolution; and / or an RNTI (e.g., a C-RNTI or a TC-RNTI). The UE can determine that the two-step random access procedure was successfully completed if: the preamble identifier in Msg B 1332 matches the preamble transmitted by the UE; and / or the UE identifier in Msg B 1332 matches the UE identifier in Msg A 1331 (e.g., transport block 1342).

[0191] The UE and the base station can exchange control signaling. The control signaling may be referred to as L1 / L2 control signaling and may originate from the PHY layer (e.g., Layer 1) and / or the MAC layer (e.g., Layer 2). The control signaling may include downlink control signaling transmitted from the base station to the UE and / or uplink control signaling transmitted from the UE to the base station.

[0192] Downlink control signaling may include: downlink scheduling assignment; uplink scheduling authorization indicating uplink radio resources and / or transmission format; time slot format information; preemption indication; power control command; and / or any other suitable signaling. The UE may receive downlink control signaling in the payload transmitted by the base station on the Physical Downlink Control Channel (PDCCH). The payload transmitted on the PDCCH may be referred to as Downlink Control Information (DCI). In some scenarios, the PDCCH may be a group-shared PDCCH (GC-PDCCH) common to the UE group.

[0193] A base station can attach one or more Cyclic Redundancy Check (CRC) parity bits to the DCI to aid in the detection of transmission errors. When the DCI is intended for use with a UE (or a group of UEs), the base station can scramble the CRC parity bits with the UE's identifier (or the UE group's identifier). Scrambling the CRC parity bits with the identifier can include adding (or performing an exclusive OR operation) the identifier value and a modulo-2 (or exclusive OR) operation of the CRC parity bits. The identifier can include a 16-bit value of the Radio Network Temporary Identifier (RNTI).

[0194] DCIs can be used for various purposes. The purpose can be indicated by the type of RNTI used to scramble the CRC parity bits. For example, a DCI with CRC parity bits scrambled using a paging RNTI (P-RNTI) can indicate paging information and / or system information change notifications. A P-RNTI can be predefined as "FFFE" in hexadecimal. A DCI with CRC parity bits scrambled using a system information RNTI (SI-RNTI) can indicate broadcast transmission of system information. A SI-RNTI can be predefined as "FFFF" in hexadecimal. A DCI with CRC parity bits scrambled using a random access RNTI (RA-RNTI) can indicate a random access response (RAR). A DCI with CRC parity bits scrambled using a cell RNTI (C-RNTI) can indicate dynamically scheduled unicast transmissions and / or triggering of PDCCH ordered random access. A DCI with CRC parity bits scrambled using a temporary cell RNTI (TC-RNTI) can indicate contention resolution (e.g., similar to...). Figure 13AThe Msg 3 of Msg 31313 described herein. Other RNTIs configured by the base station for the UE may include: Configurable Scheduling RNTI (CS-RNTI), Transmission Power Control PUCCH RNTI (TPC-PUCCH-RNTI), Transmission Power Control PUSCH RNTI (TPC-PUSCH-RNTI), Transmission Power Control SRS RNTI (TPC-SRS-RNTI), Interruption RNTI (INT-RNTI), Slot Format Indication RNTI (SFI-RNTI), Semi-Persistent CSI RNTI (SP-CSI-RNTI), Modulation and Coding Scheme Cell RNTI (MCS-C-RNTI), etc.

[0195] Depending on the purpose and / or content of the DCI, the base station may transmit DCI with one or more DCI formats. For example, DCI format 0_0 can be used for PUSCH scheduling in a cell. DCI format 0_0 can be a fallback DCI format (e.g., with a compact DCI payload). DCI format 0_1 ​​can be used for PUSCH scheduling in a cell (e.g., with a larger DCI payload than DCI format 0_0). DCI format 1_0 can be used for PDSCH scheduling in a cell. DCI format 1_0 can be a fallback DCI format (e.g., with a compact DCI payload). DCI format 1_1 can be used for PDSCH scheduling in a cell (e.g., with a larger DCI payload than DCI format 1_0). DCI format 2_0 can be used to provide slot format indication to UE groups. DCI format 2_1 can be used to notify UE groups of physical resource blocks and / or OFDM symbols, where UEs may assume that transmission to UEs is not expected. DCI format 2_2 can be used to transmit Transmission Power Control (TPC) commands for PUCCH or PUSCH. DCI format 2_3 can be used to transmit a set of TPC commands for SRS transmission by one or more UEs. New DCI formats for new features can be defined in future versions. DCI formats can have different DCI sizes, or they can share the same DCI size.

[0196] After scrambling the DCI with RNTI, the base station can process the DCI using channel coding (e.g., polarity coding), rate matching, scrambling, and / or QPSK modulation. The base station can map the coded and modulated DCI onto resource elements used for and / or configured for the PDCCH. Based on the DCI payload size and / or the base station's coverage area, the base station can transmit the DCI via a PDCCH occupying multiple consecutive control channel elements (CCEs). The number of consecutive CCEs (referred to as the aggregation level) can be 1, 2, 4, 8, 16, and / or any other suitable number. CCEs can include the number of resource element groups (REGs) (e.g., 6). REGs can include resource blocks in OFDM symbols. The mapping of the coded and modulated DCI onto resource elements can be based on the mapping between CCEs and REGs (e.g., CCE-to-REG mapping).

[0197] Figure 14A This section illustrates an example of CORESET configuration for the bandwidth portion. A base station can transmit DCI via PDCCH on one or more control resource sets (CORESETs). A CORESET can include time-frequency resources in which a UE attempts to decode the DCI using one or more search spaces. The base station can configure the CORESET in the time-frequency domain. Figure 14A In the example, the first CORESET 1401 and the second CORESET 1402 appear at the first symbol of the time slot. The first CORESET 1401 overlaps with the second CORESET 1402 in the frequency domain. The third CORESET 1403 appears at the third symbol of the time slot. The fourth CORESET 1404 appears at the seventh symbol of the time slot. CORESETs can have different numbers of resource blocks in the frequency domain.

[0198] Figure 14B This section illustrates an example of CCE-to-REG mapping for DCI transmission in CORESET and PDCCH processing. CCE-to-REG mapping can be interleaved (e.g., for providing frequency diversity) or non-interleaved (e.g., for facilitating interference coordination and / or frequency-selective transmission in the control channel). The base station can perform different or the same CCE-to-REG mappings for different CORESETs. CORESETs can be associated with CCE-to-REG mappings via RRC configuration. CORESETs can be configured with antenna port quasi-co-location (QCL) parameters. Antenna port QCL parameters can indicate the QCL information for the demodulation reference signal (DMRS) used for PDCCH reception in the CORESET.

[0199] The base station can transmit an RRC message to the UE containing configuration parameters for one or more CORESETs and one or more search space sets. The configuration parameters can indicate the association between the search space set and the CORESET. The search space set can include a set of PDCCH candidates formed by CCEs at a given aggregation level. The configuration parameters can indicate: the number of PDCCH candidates to be monitored at each aggregation level; the PDCCH monitoring period and PDCCH monitoring type; one or more DCI formats to be monitored by the UE; and / or whether the search space set is a common search space set or a UE-specific search space set. The CCE sets in the common search space set can be predefined and are known to the UE. The CCE sets in the UE-specific search space set can be configured based on the UE's identity (e.g., C-RNTI).

[0200] like Figure 14B As shown, the UE can determine the time-frequency resources of the CORESET based on RRC messages. The UE can determine the CCE-to-REG mapping of the CORESET (e.g., interleaved or non-interleaved and / or mapping parameters) based on the CORESET's configuration parameters. The UE can determine the number of search space sets configured on the CORESET (e.g., up to 10) based on RRC messages. The UE can monitor a set of PDCCH candidates based on the configuration parameters of the search space sets. The UE can monitor a set of PDCCH candidates in one or more CORESETs for detecting one or more DCIs. Monitoring may include decoding one or more PDCCH candidates in the set of PDCCH candidates according to the monitored DCI format. Monitoring may include decoding the DCI content of one or more PDCCH candidates, the DCI content having possible (or configured) PDCCH locations, possible (or configured) PDCCH formats (e.g., the number of CCEs, the number of PDCCH candidates in the common search space, and / or the number of PDCCH candidates in the UE-specific search space), and possible (or configured) DCI formats. Decoding may be referred to as blind decoding. The UE can determine that the DCI is valid for the UE in response to a CRC check (e.g., scrambling bits of the CRC parity bit of the DCI that match the RNTI value). The UE can process the information included in the DCI (e.g., scheduling assignment, uplink grant, power control, timeslot format indication, downlink preemption, etc.).

[0201] The UE can transmit uplink control signaling (e.g., uplink control information (UCI)) to the base station. Uplink control signaling transmission may include a Hybrid Automatic Repeat Request (HARQ) acknowledgment for a received DL-SCH transport block. The UE may transmit the HARQ acknowledgment after receiving the DL-SCH transport block. Uplink control signaling may include channel state information (CSI) indicating the channel quality of the physical downlink channel. The UE may transmit the CSI to the base station. Based on the received CSI, the base station can determine transmission format parameters (e.g., including multiple antennas and beamforming schemes) for downlink transmission. Uplink control signaling may include a scheduling request (SR). The UE may transmit an SR indicating that uplink data is available for transmission to the base station. The UE may transmit UCI (e.g., HARQ acknowledgment, CSI report, SR, etc.) via the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH). The UE may use one of several PUCCH formats to transmit uplink control signaling via the PUCCH.

[0202] Five PUCCH formats can exist, and the UE can determine the PUCCH format based on the size of the UCI (e.g., the number of uplink symbols transmitted for the UCI and the number of UCI bits). PUCCH format 0 can have a length of one or two OFDM symbols and can include two or fewer bits. If more than one or two symbols are transmitted and the number of HARQ-ACK information bits (HARQ-ACK / SR bits) with positive or negative SR is one or two, the radio device can use PUCCH format 0 to transmit the UCI in the PUCCH resource. PUCCH format 1 can occupy between four and fourteen OFDM symbols and can include two or fewer bits. If four or more symbols are transmitted and the number of HARQ-ACK / SR bits is one or two, the UE can use PUCCH format 1. PUCCH format 2 can occupy one or two OFDM symbols and can include more than two bits. If more than one or two symbols are transmitted and the number of UCI bits is two or more, the UE can use PUCCH format 2. PUCCH format 3 can occupy between four and fourteen OFDM symbols and can include more than two bits. If four or more symbols are transmitted, the number of UCI bits is two or more, and the PUCCH resource does not include an orthogonal overlay code, the UE can use PUCCH format 3. PUCCH format 4 can occupy between four and fourteen OFDM symbols and can include more than two bits. If four or more symbols are transmitted, the number of UCI bits is two or more, and the PUCCH resource includes an orthogonal overlay code, the UE can use PUCCH format 4.

[0203] The base station can transmit configuration parameters for multiple PUCCH resource sets to the UE using, for example, an RRC message. These multiple PUCCH resource sets (e.g., up to four sets) can be configured on the cell's uplink BWP. A PUCCH resource set can be configured with: a PUCCH resource set index; multiple PUCCH resources identified by a PUCCH resource identifier (e.g., pucch-Resourceid); and / or multiple (e.g., a maximum number) UCI ​​information bits that the UE can transmit using one of the multiple PUCCH resources in the PUCCH resource set. When multiple PUCCH resource sets are configured, the UE can select one PUCCH resource set from the multiple PUCCH resource sets based on the total bit length of the UCI information bits (e.g., HARQ-ACK, SR, and / or CSI). If the total bit length of the UCI information bits is two or fewer, the UE can select a first PUCCH resource set with a PUCCH resource set index equal to "0". If the total length of the UCI information bits is greater than two and less than or equal to the first configuration value, the UE can select a second PUCCH resource set with a PUCCH resource set index equal to "1". If the total length of the UCI information bits is greater than the first configuration value and less than or equal to the second configuration value, the UE can select a third PUCCH resource set with a PUCCH resource set index equal to "2". If the total length of the UCI information bits is greater than the second configuration value and less than or equal to the third value (e.g., 1406), the UE can select a fourth PUCCH resource set with a PUCCH resource set index equal to "3".

[0204] After determining a PUCCH resource set from multiple PUCCH resource sets, the UE can determine the PUCCH resources used for UCI (HARQ-ACK, CSI, and / or SR) transmission from the PUCCH resource set. The UE can determine the PUCCH resources based on the PUCCH resource indicator in the DCI received on the PDCCH (e.g., a DCI with DCI format 1_0 or a DCI for 1_1). The three-bit PUCCH resource indicator in the DCI can indicate one of the eight PUCCH resources in the PUCCH resource set. Based on the PUCCH resource indicator, the UE can use the PUCCH resource indicated by the PUCCH resource indicator in the DCI to transmit UCI (HARQ-ACK, CSI, and / or SR).

[0205] Figure 15 An example of a wireless device 1502 communicating with a base station 1504 according to an embodiment of this disclosure is illustrated. The wireless device 1502 and the base station 1504 may be part of a mobile communication network, such as... Figure 1AThe mobile communication network 100 described Figure 1B The mobile communication network 150 described or any other communication network. Figure 15 The description specifies only one wireless device 1502 and one base station 1504, but it should be understood that a mobile communication network may include more than one UE and / or more than one base station, which have the same characteristics as... Figure 15 The same or similar configurations shown.

[0206] Base station 1504 can connect wireless device 1502 to the core network (not shown) via radio communication through air interface (or radio interface) 1506. The communication direction from base station 1504 to wireless device 1502 via air interface 1506 is referred to as the downlink, while the communication direction from wireless device 1502 to base station 1504 via air interface 1506 is referred to as the uplink. Downlink transmissions can be separated from uplink transmissions using FDD, TDD, and / or some combination of the two duplex technologies described above.

[0207] In the downlink, data to be transmitted from base station 1504 to wireless device 1502 can be provided to processing system 1508 of base station 1504. The data can be provided to processing system 1508 via, for example, the core network. In the uplink, data to be transmitted from wireless device 1502 to base station 1504 can be provided to processing system 1518 of wireless device 1502. Processing systems 1508 and 1518 can implement Layer 3 and Layer 2 OSI functions to process the data for transmission. Layer 2 may include, for example, regarding… Figure 2A , Figure 2B , Figure 3 and Figure 4A The SDAP layer, PDCP layer, RLC layer, and MAC layer. Layer 3 may include, for example, the SDAP layer, PDCP layer, RLC layer, and MAC layer. Figure 2B The RRC layer.

[0208] After being processed by processing system 1508, data to be sent to wireless device 1502 can be provided to transmission processing system 1510 of base station 1504. Similarly, after being processed by processing system 1518, data to be sent to base station 1504 can be provided to transmission processing system 1520 of wireless device 1502. Transmission processing systems 1510 and 1520 can implement Layer 1 OSI functions. Layer 1 may include information about... Figure 2A , Figure 2B , Figure 3 and Figure 4A The PHY layer. For transmission processing, the PHY layer can perform operations such as forward error correction coding of the transport channel, interleaving, rate matching, mapping of the transport channel to the physical channel, modulation of the physical channel, multiple-input multiple-output (MIMO) or multiple-antenna processing, etc.

[0209] At base station 1504, receiving processing system 1512 can receive uplink transmissions from wireless device 1502. At wireless device 1502, receiving processing system 1522 can receive downlink transmissions from base station 1504. Receiving processing systems 1512 and 1522 can implement Layer 1 OSI functions. Layer 1 may include information about... Figure 2A , Figure 2B , Figure 3 and Figure 4A The PHY layer. For receive processing, the PHY layer can perform tasks such as error detection, forward error correction decoding, deinterleaving, demapping of the transport channel to the physical channel, demodulation of the physical channel, MIMO or multi-antenna processing, etc.

[0210] like Figure 15 As shown, wireless device 1502 and base station 1504 may include multiple antennas. These multiple antennas can be used to perform one or more MIMO or multi-antenna techniques, such as spatial multiplexing (e.g., single-user MIMO or multi-user MIMO), transmit / receive diversity, and / or beamforming. In other examples, wireless device 1502 and / or base station 1504 may have a single antenna.

[0211] Processing systems 1508 and 1518 may be associated with memory 1514 and memory 1524, respectively. Memory 1514 and memory 1524 (e.g., one or more non-transitory computer-readable media) may store computer program instructions or code that can be executed by processing systems 1508 and / or 1518 to perform one or more of the functions discussed in this application. Although Figure 15 Although not shown, the transmission processing system 1510, transmission processing system 1520, receiving processing system 1512 and / or receiving processing system 1522 may be coupled to a memory (e.g., one or more non-transitory computer-readable media) storing computer program instructions or code that can be executed to perform one or more of their respective functions.

[0212] Processing system 1508 and / or processing system 1518 may include one or more controllers and / or one or more processors. The one or more controllers and / or one or more processors may include, for example, a general-purpose processor, a digital signal processor (DSP), a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) and / or other programmable logic devices, discrete gate and / or transistor logic, discrete hardware components, onboard units, or any combination thereof. Processing system 1508 and / or processing system 1518 may perform at least one of the following: signal encoding / processing, data processing, power control, input / output processing, and / or any other function that enables wireless device 1502 and base station 1504 to operate in a wireless environment.

[0213] Processing system 1508 and / or processing system 1518 may be connected to one or more peripheral devices 1516 and one or more peripheral devices 1526, respectively. The one or more peripheral devices 1516 and one or more peripheral devices 1526 may include software and / or hardware providing features and / or functions, such as speakers, microphones, keyboards, displays, touchpads, power supplies, satellite transceivers, universal serial bus (USB) ports, hands-free headsets, FM radio units, media players, internet browsers, electronic control units (e.g., for motor vehicles), and / or one or more sensors (e.g., accelerometers, gyroscopes, temperature sensors, radar sensors, lidar sensors, ultrasonic sensors, light sensors, cameras, etc.). Processing system 1508 and / or processing system 1518 may receive user input data from one or more peripheral devices 1516 and / or one or more peripheral devices 1526 and / or provide user output data to the aforementioned one or more peripheral devices. Processing system 1518 in wireless device 1502 may receive power from a power source and / or may be configured to distribute power to other components in wireless device 1502. The power source may include one or more power sources, such as batteries, solar cells, fuel cells, or any combination thereof. Processing system 1508 and / or processing system 1518 may be connected to GPS chipset 1517 and GPS chipset 1527, respectively. GPS chipset 1517 and GPS chipset 1527 may be configured to provide geographic location information for wireless device 1502 and base station 1504, respectively.

[0214] Figure 16AAn exemplary structure for uplink transmission is illustrated. The baseband signal representing the physical uplink shared channel can perform one or more functions. These functions may include at least one of the following: scrambling; modulating scrambling bits to generate complex-valued symbols; mapping complex-valued modulation symbols onto one or more transport layers; transform precoding to generate complex-valued symbols; precoding the complex-valued symbols; mapping precoded complex-valued symbols to resource elements; generating complex-valued time-domain single-carrier frequency division multiple access (SC-FDMA) or CP-OFDM signals for antenna ports; and so on. In one example, when transform precoding is enabled, an SC-FDMA signal for uplink transmission can be generated. In one example, when transform precoding is not enabled, it can be achieved through... Figure 16A Generate CP-OFDM signals for uplink transmission. These functions are illustrated as examples, and other mechanisms are expected to be implemented in various implementation schemes.

[0215] Figure 16B An exemplary structure for modulation and upsampling conversion of baseband signals to carrier frequencies is illustrated. The baseband signal can be a complex-value SC-FDMA or CP-OFDM baseband signal from the antenna port and / or a complex-value Physical Random Access Channel (PRACH) baseband signal. Filtering can be applied before transmission.

[0216] Figure 16C An exemplary structure for downlink transmission is illustrated. The baseband signal representing the physical downlink channel can perform one or more functions. These functions may include: scrambling coded bits in a codeword to be transmitted over the physical channel; modulating the scrambled bits to generate complex-valued modulation symbols; mapping the complex-valued modulation symbols onto one or more transport layers; precoding the complex-valued modulation symbols for transmission at the antenna port; mapping the complex-valued modulation symbols for the antenna port to resource elements; generating a complex-valued time-domain OFDM signal for the antenna port; and so on. These functions are illustrated as examples, and other mechanisms are contemplated for implementation in various embodiments.

[0217] Figure 16D Another exemplary structure for modulation and upconversion of a baseband signal to a carrier frequency is shown. The baseband signal can be a complex-value OFDM baseband signal at the antenna port. Filtering can be applied before transmission.

[0218] A wireless device can receive one or more messages (e.g., RRC messages) from a base station, including configuration parameters for multiple cells (e.g., primary cell, secondary cell). The wireless device can communicate with at least one base station (e.g., two or more base stations in dual connectivity) via these multiple cells. The one or more messages (e.g., as part of the configuration parameters) can include parameters for configuring the wireless device at the physical layer, MAC layer, RLC layer, PCDP layer, SDAP layer, and RRC layer. For example, the configuration parameters can include parameters for configuring physical layer and MAC layer channels, bearers, etc. For example, the configuration parameters can include parameters indicating the values ​​of timers for the physical layer, MAC layer, RLC layer, PCDP layer, SDAP layer, RRC layer, and / or communication channels.

[0219] A timer can begin running once started and continues running until it stops or expires. If the timer is not running, it can be started, or if it is running, it can be restarted. The timer can be associated with a value (e.g., the timer can start or restart from a certain value, or it can start from zero and expire once it reaches that value). The duration of the timer may not be updated until the timer stops or expires (e.g., due to BWP switching). The timer can be used to measure time periods / windows of a process. When the specification refers to implementations and procedures related to one or more timers, it should be understood that there are multiple ways to implement the one or more timers. For example, it should be understood that one or more of the multiple ways of implementing a timer can be used to measure time periods / windows of a process. For example, a random access response window timer can be used to measure a time window for receiving a random access response. In one example, instead of starting and expiring the random access response window timer, the time difference between two timestamps can be used. When the timer restarts, the measurement process for the time window can be restarted. Other exemplary implementations can be provided to restart the measurement of the time window.

[0220] In one example, the wireless device is capable of simultaneously tracking / measuring a maximum number of path loss reference signals (RS). In one example, the maximum number can be fixed / preconfigured / predefined (e.g., three, four, eight, sixteen, etc.). In one example, the wireless device can transmit UE capability information indicating the maximum number to the base station. The wireless device can receive from the base station one or more configuration parameters indicating one or more path loss reference RSs used for path loss estimation.

[0221] In one example, the number of one or more path loss reference RSs may be equal to or less than (or less than) a maximum number (e.g., in UE capability information). The radio device can simultaneously track / measure one or more path loss reference RSs based on the number being equal to or less than the maximum number. For example, when the maximum number is four, the radio device can simultaneously track / measure up to four path loss reference RSs. When the maximum number is four, one or more path loss reference RSs may include path loss reference RS 0 (PL-RS 0), PL-RS 1, PL-RS 2, and PL-RS 3. When the maximum number is three, one or more path loss reference RSs may include PL-RS 0, PL-RS 1, and PL-RS 2. In existing systems, one or more configuration parameters can indicate the path loss reference RS among one or more path loss reference RSs used for the configured uplink grant. The radio device can transmit transport blocks with the configured uplink grant based on the transmission power. The radio device can determine / calculate the transmission power based on the path loss reference RSs with the configured uplink grant.

[0222] In one example, a number equal to or less than the maximum number may not be valid. For instance, when the wireless device is not stationary, the base station may frequently transmit configuration parameters (e.g., RRC parameters) that indicate another path loss reference RS (e.g., the direction pointing to the wireless device for accurate path loss estimation). This can lead to increased signaling overhead and power consumption.

[0223] In one example, the number of one or more path loss reference RSs may be greater than the maximum number (e.g., in UE capability information). One or more configuration parameters may include path loss reference signal update parameters. Path loss reference signal update parameters enable activation commands (e.g., MAC-CE, DCI) to update one or more path loss reference RSs of uplink channels (e.g., PUSCH, PUCCH). The base station may, for example, dynamically activate / select / update a subset of one or more path loss reference RSs via activation commands based on one or more configuration parameters including path loss reference signal update parameters. Dynamically activating / selecting / updating a subset of one or more path loss reference RSs can reduce the frequency of configuration parameter (e.g., RRC parameter) transmissions, reduce latency introduced by configuration parameter (e.g., RRC parameter) transmissions, and adapt to the faster speeds of mobile radio devices. In one example, one or more path loss reference RSs indicated by one or more configuration parameters may include PL-RS 0, PL-RS 1, PL-RS 2, PL-RS 3, PL-RS 4, and PL-RS 5. When the maximum number is four, the wireless device can simultaneously track / measure up to four path loss reference RSs. Based on the maximum number of four, the wireless device can initially measure / track a subset of path loss reference RSs from one or more path loss reference RSs, such as PL-RS 0, PL-RS 1, PL-RS 2, and PL-RS 3. In one example, for a configured uplink grant, one or more configuration parameters can indicate the path loss reference RS (e.g., PL-RS 2) within the subset of path loss reference RSs.

[0224] In one example, a wireless device may receive an activation command, which, for example, activates / selects / updates a subset of one or more path loss reference RSs based on one or more configuration parameters, including path loss reference signal update parameters. The subset of path loss reference RSs may include PL-RS 1, PL-RS 3, PL-RS 4, and PL-RS 5. The subset of path loss reference RSs may not include the path loss reference RS with configured uplink grant (e.g., PL-RS 2). Based on a maximum number of four (e.g., UE capability), the wireless device may not simultaneously measure / track a subset of path loss reference RSs, which includes PL-RS 1, PL-RS 3, PL-RS 4, PL-RS 5 with configured uplink grant plus / and PL-RS 2. In the prior art, the wireless device may stop measuring / tracking PL-RS 2 with configured uplink grant. In response to stopping the measurement / tracking of PL-RS 2, the wireless device may determine the transmission power of the configured uplink grant without relying on PL-RS 2. In the prior art, for a configured uplink grant, a wireless device can transmit with a transmission power determined based on a subset of the path loss reference RS, PL-RS n (e.g., PL-RS 1 when n=1, PL-RS 3 when n=3, PL-RS 4 when n=4, and PL-RS 5 when n=5). If the base station is unaware that PL-RS n is being used to / measure the configured uplink grant, calculating / determining the transmission power of the configured uplink grant based on PL-RS n may result in PL-RS misalignment. The implementation of the prior art may not be efficient when an activation command activates a subset of the path loss reference RS (or when one or more configuration parameters include path loss reference signal update parameters) and the subset of path loss reference RS does not include the path loss reference RS for the configured uplink grant (e.g., PL-RS 2). In one example, the base station may assign / allocate a lower transmission power (lower than necessary) for (re)transmissions of the configured uplink grant. Transmitting at lower transmission power may result in reduced coverage, leading to missed receptions of configured uplink grants; increased retransmissions; and increased battery consumption due to increased retransmissions. In one example, the base station may assign / allocate higher transmission power (more than necessary) for (re)transmissions of configured uplink grants. Transmitting at higher transmission power may result in increased interference to other cells / wireless devices, thereby degrading their signal quality (e.g., quality of service, received signal power, etc.).

[0225] When the number of (configured / activated / selected) subsets of path loss reference RSs is equal to or greater than the maximum number of path loss reference RSs that the wireless device can simultaneously track / measure (or when one or more configuration parameters include path loss reference signal update parameters that enable an activation command to update one or more path loss reference RSs of the uplink channel), an exemplary embodiment implements an enhancement procedure for determining the path loss reference RSs for the configured uplink grant. In an exemplary embodiment, the wireless device may select path loss reference RSs from a subset of path loss reference RSs having the lowest (or highest) path loss reference RS index among the path loss reference RS indices of the subset of path loss reference RSs. In an exemplary embodiment, the activation command may include a field indicating the path loss reference RSs for the configured uplink grant. In one example, each path loss reference RS in the subset of path loss reference RSs may be mapped (or linked) to a power control parameter set from multiple power control parameter sets. In an exemplary implementation, the wireless device may select a path loss reference RS from a subset of path loss reference RSs, which are mapped to a power control parameter set from a plurality of power control parameter sets, the power control parameter sets being identified by a power control index equal to zero (or the lowest power control index).

[0226] This enhancement reduces the signaling overhead of the Indicator Path Loss Reference RS. This enhancement enables accurate power delivery of configured uplink grants, reduces retransmissions, lowers power consumption for radio devices and base stations, reduces data communication latency / wait time, and reduces interference to other cells / radio devices, thereby improving their signal quality.

[0227] Figure 17 This is an example of a power control configuration for a PUSCH according to one aspect of the embodiments of this disclosure.

[0228] Figure 18 This is an example of power control according to one aspect of the embodiments of this disclosure.

[0229] Figure 19 This is an example of a MAC CE for power control according to one aspect of an embodiment of the present disclosure.

[0230] In one example, a wireless device can receive one or more messages (e.g., in...). Figure 18 (At time T0 in the original text). In one example, the wireless device can receive one or more messages from the base station. The one or more messages may include one or more configuration parameters (e.g., ...). Figure 18 (Configuration parameters in the file).

[0231] In one example, one or more configuration parameters may be cell-specific. In one example, at least one of the one or more configuration parameters may be cell-specific. In one example, the cell may be a primary cell (PCell). In one example, the cell may be a secondary cell (SCell). The cell may be a secondary cell configured with a PUCCH (e.g., a PUCCH SCell). In one example, the cell may be, for example, an unlicensed cell operating in an unlicensed band. In one example, the cell may be, for example, a licensed cell operating in a licensed band.

[0232] In one example, a cell may include multiple BWPs. The multiple BWPs may include one or more uplink BWPs, which include the cell's uplink BWPs. The multiple BWPs may also include one or more downlink BWPs, which include the cell's downlink BWPs.

[0233] In one example, one of the multiple BWPs can be in an active or inactive state. In one example, when one or more downlink BWPs are active, the radio device can monitor downlink channels / signals (e.g., PDCCH, DCI, CSI-RS, PDSCH) on / for / via the downlink BWP. In one example, when one or more downlink BWPs are active, the radio device can receive PDSCH on / for / via the downlink BWP. In one example, when one or more downlink BWPs are inactive, the radio device cannot monitor downlink channels / signals (e.g., PDCCH, DCI, CSI-RS, PDSCH) on / for the downlink BWP. When one or more downlink BWPs are inactive, the radio device can stop monitoring downlink channels / signals (e.g., PDCCH, DCI, CSI-RS, PDSCH) on / for the downlink BWP. In one example, when one or more downlink BWPs are inactive, the radio device cannot receive PDSCH on or via the downlink BWP. When one or more downlink BWPs are inactive, the radio device can stop receiving PDSCH on or via the downlink BWP.

[0234] In one example, when one or more uplink BWPs are active, the wireless device can transmit uplink signals / channels (e.g., PUCCH, preamble, PUSCH, PRACH, SRS, etc.) via the uplink BWP. In another example, when one or more uplink BWPs are inactive, the wireless device cannot transmit uplink signals / channels (e.g., PUCCH, preamble, PUSCH, PRACH, SRS, etc.) via the uplink BWP.

[0235] In one example, a wireless device may activate one or more downlink BWPs in a cell. In one example, activating a downlink BWP may include the wireless device setting the downlink BWP as the active downlink BWP of the cell. In one example, activating a downlink BWP may include the wireless device setting the downlink BWP to an active state. In one example, activating a downlink BWP may include switching the downlink BWP from an inactive state to an active state.

[0236] In one example, a radio device may activate one or more uplink BWPs in a cell. In one example, activating an uplink BWP may include the radio device setting the uplink BWP as the active uplink BWP for the cell. In one example, activating an uplink BWP may include the radio device setting the uplink BWP to an active state. In one example, activating an uplink BWP may include switching the uplink BWP from an inactive state to an active state.

[0237] In one example, one or more configuration parameters may be for the (active) downlink BWP of a cell. In one example, at least one of the one or more configuration parameters may be for the downlink BWP of a cell.

[0238] In one example, one or more configuration parameters may be for the (active) uplink BWP of the cell. In one example, at least one of the one or more configuration parameters may be for the uplink BWP of the cell.

[0239] In one example, one or more configuration parameters (e.g., RRC configuration, RRC reconfiguration, etc.) may include / indicate multiple sets of power control parameters (e.g., Figure 18 The power control parameter set in, for example, by Figure 17 (Provided by higher-level parameters in SRI-PUSCH-PowerControl). Figure 18In this context, multiple power control parameter sets may include power control parameter set-0, power control parameter set-1, power control parameter set-2, power control parameter set-3, power control parameter set-4, and power control parameter set-5.

[0240] In one example, multiple power control parameter sets can be configured for transmission via the cell / cell's Physical Uplink Shared Channel (PUSCH). In another example, multiple power control parameter sets can be configured for transmission via / through the cell's Physical Uplink Control Channel (PUCCH). In yet another example, multiple power control parameter sets can be configured for transmission via / through the cell's Sounding Reference Signal (SRS).

[0241] In one example, multiple power control parameter sets can be configured for transmission via the Physical Uplink Shared Channel (PUSCH) of the cell's (active) uplink BWP. In another example, multiple power control parameter sets can be configured for transmission via the Physical Uplink Control Channel (PUCCH) of the cell's (active) uplink BWP. In yet another example, multiple power control parameter sets can be configured for transmission via / through the Sound Reference Signal (SRS) of the cell's (active) uplink BWP.

[0242] In one example, one or more configuration parameters (or multiple sets of power control parameters) may indicate (or include) the power control index of multiple sets of power control parameters (e.g., by...). Figure 17 The higher-level parameter SRI-PUSCH-PowerControlId in the system is provided. In one example, each power control parameter set in the multiple power control parameter sets can be identified by a corresponding power control index in the power control index (or may include the corresponding power control index). In one example, the first power control parameter set in the multiple power control parameter sets (e.g., Figure 18 The power control parameter set (-0) in the power control index can be identified by the first power control index (e.g., 0, 1, 2, 15) in the power control index. In one example, the second power control parameter set (e.g., ...) in multiple power control parameter sets... Figure 18 The power control parameter set (-1) in the power control index can be identified by a second power control index (e.g., 3, 4, 7, 9, 14) in the power control index. In one example, the first power control index and the second power control index can be different. The first power control index and the second power control index can be different because the first power control parameter set and the second power control parameter set are different.

[0243] In one example, one or more configuration parameters can indicate multiple path loss reference RSs (e.g., PUSCH, PUCCH, SRS) used for path loss estimation of uplink transmissions (e.g., PUSCH, PUCCH, SRS). Figure 18 The path loss reference RS in the data is derived from... Figure 17 The higher-level parameters in PUSCH-PathlossReferenceRS are provided. Figure 18 In this context, multiple path loss reference RSs may include PL-RS 0, PL-RS 1, PL-RS 2...PL-RS 63.

[0244] In one example, one or more configuration parameters can indicate multiple path loss reference RS indices for multiple path loss reference RSs (e.g., by...). Figure 17 The higher-level parameter PUSCH-PathlossReferenceRS-Id is provided. In one example, each path loss reference RS in the plurality of path loss reference RSs can be identified by a corresponding path loss reference RS index in the plurality of path loss reference RS indexes (or may include the corresponding path loss reference RS index). In one example, the first path loss reference RS in the plurality of path loss reference RSs (e.g., Figure 18 The PL-RS 0 in the multiple path loss reference RS indices can be identified by (or may include) a first path loss reference RS index (e.g., 0, 1, 10, 63) among multiple path loss reference RS indices. In one example, a second path loss reference RS (e.g., ...) among multiple path loss reference RS indices... Figure 18 PL-RS 1) in the PL-RS 1) can be identified by a second path loss reference RS index (e.g., 3, 5, 25, 54) among multiple path loss reference RS indexes (or may include the second path loss reference RS index).

[0245] In one example, each of the multiple path loss reference RSs may indicate / include a corresponding path loss RS (e.g., by...). Figure 17 The higher-level parameter reference signals, ssb-index, csi-RS-index, and NZP-CSI-RS-ResourceId are provided. In one example, the first path loss reference RS among multiple path loss reference RSs (e.g., Figure 18 PL-RS 0 in the PL-RS 0 can indicate a first path loss RS (or may include a first index identifying the first path loss RS). In one example, a second path loss reference RS (e.g., ...) is one of multiple path loss reference RSs. Figure 18PL-RS 1) in the configuration can indicate a second path loss RS (or may include a second index identifying the second path loss reference RS). One or more configuration parameters can indicate the corresponding path loss RS for each path loss reference RS.

[0246] In one example, the measurement / tracking path loss reference RS may include measuring / tracking the path loss RS indicated by the path loss reference RS.

[0247] In one example, a wireless device may simultaneously measure / track one or more of multiple path loss reference RSs.

[0248] In one example, the wireless device can activate the command before receiving it (e.g., before time T2, or before...). Figure 18 Between time T0 and time T2, one or more path loss references RS are measured / tracked. In one example, the wireless device can measure / track one or more path loss references RS after receiving an activation command (e.g., at time T0 and time T2). Figure 18 (Time T2) Measure / track one or more path loss reference RSs. After applying the activation command (e.g., at time T2). Figure 18 After time T2, the wireless device can measure / track one or more path loss references RS.

[0249] In one example, the maximum number of one or more path loss reference RSs may depend on the capabilities of the wireless device. The maximum number can be (or may represent) the maximum number of path loss reference RSs that the wireless device can simultaneously measure / track. The wireless device may transmit UE capability information indicating the maximum number to the base station. In one example, the maximum number may be fixed / pre-configured / predefined. The wireless device cannot, for example, simultaneously measure / track a number (or base) of path loss reference RSs greater than the maximum number. The wireless device can, for example, simultaneously measure / track the maximum number of path loss reference RSs among multiple path loss reference RSs. The number of one or more path loss reference RSs being simultaneously tracked / measured may be equal to or less than the maximum number. For example, the maximum number may be four. Based on a maximum number of four, the wireless device can track / measure up to four path loss reference RSs among multiple path loss reference RSs. Based on a maximum number of four, the wireless device cannot, for example, simultaneously track / measure more than four path loss reference RSs among multiple path loss reference RSs. For example, based on a maximum number of four, a wireless device cannot simultaneously track / measure PL-RS A, PL-RS B, PL-RSC, PL-RS D, and PL-RS E, where {PL-RS A, PL-RS B, PL-RS C, PL-RS D, PL-RS E} are elements of multiple path loss reference RSs. Based on a maximum number of four, a wireless device can simultaneously track / measure PL-RS A, PL-RS B, PL-RS C, and PL-RS D. Based on a maximum number of four, a wireless device can simultaneously track / measure PL-RS A, PL-RS C, PL-RSD, and PL-RS E. Based on a maximum number of four, a wireless device can simultaneously track / measure PL-RS A, PL-RS D, and PL-RS SE. Based on a maximum number of four, a wireless device can simultaneously track / measure PL-RS B, PL-RS C, PL-RS D, and PL-RS E. For example, in... Figure 18 In the meantime, at time T0, one or more path loss reference RSs may include PL-RS 35, PL-RS 12, PL-RS 8 and PL-RS 23.

[0250] In one example, the number of path loss reference RSs can be equal to (or may include) the cardinality of the path loss reference RSs (e.g., the number of elements). For example, when the path loss reference RSs include {PL-RS 0, PL-RS 1}, the number of path loss reference RSs is two. When the path loss reference RSs include {PL-RS 20, PL-RS 43, PL-RS 32}, the number of path loss reference RSs is three. When the path loss reference RSs include {PL-RS 4, PL-RS 19, PL-RS 45, PL-RS 56, PL-RS 63}, the number of path loss reference RSs is five.

[0251] In one example, a wireless device can, for instance, simultaneously measure / track multiple path loss reference RSs used for path loss estimation of uplink transmissions (e.g., PUSCH, PUCCH, SRS). The wireless device can measure / track multiple path loss reference RSs based on a number equal to or less than a maximum number. In one example, based on a number equal to or less than the maximum number, one or more path loss reference RSs and multiple path loss reference RSs can be the same.

[0252] In one example, the wireless device cannot, for instance, simultaneously measure / track multiple path loss reference RSs for path loss estimation of uplink transmissions (e.g., PUSCH, PUCCH, SRS). In another example, the wireless device can, for instance, simultaneously measure / track one or more of multiple path loss reference RSs for path loss estimation of uplink transmissions (e.g., PUSCH, PUCCH, SRS). In one example, the one or more path loss reference RSs may be different from the multiple path loss reference RSs. The one or more path loss reference RSs may be a subset of the multiple path loss reference RSs. The wireless device can measure / track one or more path loss reference RSs based on the fact that the number of multiple path loss reference RSs is greater than a maximum number. In one example, the one or more path loss reference RSs and the multiple path loss reference RSs may be different based on the fact that the number of multiple path loss reference RSs is greater than a maximum number.

[0253] In one example, one or more configuration parameters can indicate one or more path loss reference RS indices (e.g., by...) Figure 17The higher-level parameter PUSCH-PathlossReferenceRS-Id is provided. Multiple path loss reference RS indices may include one or more path loss reference RS indices. In one example, each path loss reference RS in one or more path loss reference RS may be identified by (or may include) a corresponding path loss reference RS index among one or more path loss reference RS indices. In one example, the first path loss reference RS in one or more path loss reference RS (e.g., ...) Figure 18 The PL-RS35 in the path loss reference index can be identified by (or may include) a first path loss reference RS index in one or more path loss reference RS indexes. In one example, a second path loss reference RS in one or more path loss reference RS indexes (e.g., Figure 18 PL-RS 12 in the path loss reference index can be identified by a second path loss reference index in one or more path loss reference indexes (or may include the second path loss reference index), etc.

[0254] In one example, each power control parameter set in a plurality of power control parameter sets can indicate a corresponding path loss reference RS among one or more path loss reference RSs in a plurality of path loss reference RSs. In one example, a first power control parameter set in a plurality of power control parameter sets (e.g., power control parameter set -0) can indicate a first path loss reference RS (PL-RS 35) among one or more path loss reference RSs. A second power control parameter set in a plurality of power control parameter sets (e.g., power control parameter set -1) can indicate a second path loss reference RS (PL-RS 12 at time T0 and PL-RS 42 at time T2) among one or more path loss reference RSs. A third power control parameter set in a plurality of power control parameter sets (e.g., power control parameter set -4) can indicate a third path loss reference RS (PL-RS 12 at time T0 and PL-RS 57 at time T2) among one or more path loss reference RSs, and so on. In one example, the first path loss reference RS and the second path loss reference RS can be different. In one example, the first path loss reference RS and the second path loss reference RS can be the same (e.g., for indicating Figure 18The power control parameter set of PL-RS 35 at time T2 in the middle is set-0 and set-5. The power control parameter set indicating one or more path loss reference RSs among multiple path loss reference RSs may include: the power control parameter set includes one or more path loss reference RS indices among multiple path loss reference RS indices (e.g., via...). Figure 17 The path loss reference RS is identified / indicated by the path loss reference index in the power control parameter set (e.g., by sri PUSCH-PathlossReferenceRS-Id). The path loss reference RS index that indicates / identifies the path loss reference RS in the power control parameter set can include the path loss reference RS index from multiple path loss reference RS indices that are equal to (or identify) the path loss reference RS (e.g., by sri PUSCH-PathlossReferenceRS-Id). Figure 17 The higher-level parameter PUSCH-PathlossReferenceRS-Id is provided in the database.

[0255] In one example, one or more path loss reference RSs (or a subset of one or more path loss reference RSs) can be mapped (or linked) to multiple power control parameter sets. Mapping (or linking) one or more path loss reference RSs to multiple power control parameter sets can include multiple power control parameters indicating one or more path loss reference RSs (or a subset of one or more path loss reference RSs). In one example, the path loss reference RSs in one or more path loss reference RSs can be mapped to (or linked to or associated with) power control parameter sets in multiple power control parameter sets. In one example, each path loss reference RS in one or more path loss reference RSs can be mapped to (or linked to or associated with) a corresponding power control parameter set in multiple power control parameter sets. In one example, the mapping can be a one-to-one mapping. In one example, the mapping can be a one-to-many mapping. In one example, the mapping can be a many-to-one mapping. For example, in... Figure 18 In the context of time T2, for a one-to-many mapping, PL-RS 35 can be mapped to (or linked to or associated with) power control parameter set -0 and power control parameter set -5. PL-RS 57 can be mapped to (or linked to or associated with) power control parameter set -3 and power control parameter set -4. For a one-to-one mapping, PL-RS 42 can be mapped to (or linked to or associated with) power control parameter set -1. PL-RS 8 can be mapped to (or linked to or associated with) power control parameter set -2.

[0256] In one example, multiple power control parameter sets may indicate one or more path loss reference RSs (or a subset of one or more path loss reference RSs) among multiple path loss reference RSs. In one example, multiple power control parameter sets indicating one or more path loss reference RSs may include multiple power control parameter sets mapped to (or linked to or associated with) one or more path loss reference RSs. In one example, power control parameter sets in multiple power control parameter sets may be mapped to (or linked to or associated with) one or more path loss reference RSs among multiple path loss reference RSs. Power control parameter sets may indicate path loss reference RSs. In one example, each power control parameter set in multiple power control parameter sets may be mapped to (or linked to or associated with) a corresponding path loss reference RS among one or more path loss reference RSs. In one example, the mapping may be a one-to-one mapping. In one example, the mapping may be a one-to-many mapping. In one example, the mapping may be a many-to-one mapping. For example, in... Figure 18 In the process, at time T2, power control parameter set -0 is mapped to (or linked to or associated with) PL-RS 35; power control parameter set -1 is mapped to (or linked to or associated with) PL-RS 42; power control parameter set -2 is mapped to (or linked to or associated with) PL-RS 8; power control parameter set -3 is mapped to (or linked to or associated with) PL-RS 57; and so on.

[0257] In one example, one or more path loss reference RSs can be mapped to (or linked to or associated with) power control parameter sets in multiple power control parameter sets. The power control parameter sets can indicate the path loss reference RSs.

[0258] In one example, one or more configuration parameters can indicate the path loss reference RS used for the set of (mapped / linked / associated) power control parameters. For example, in Figure 18 In this context, at time T0, one or more configuration parameters indicate PL-RS 35 for power control parameter sets-0 and-3, PL-RS 12 for power control parameter sets-1 and-4, PL-RS 8 for power control parameter set-2, and PL-RS 23 for power control parameter set-5. For example, in... Figure 18 In time T2, one or more configuration parameters indicate PL-RS 35 for power control parameter set-0 and PL-RS 8 for power control parameter set-2 (e.g., because the activation command received at time T2 does not update the PL-RS of power control parameter set-0 and power control parameter set-2).

[0259] In one example, (for example, in) Figure 18 The activation command received at time T2 can indicate the path loss reference RS for the (mapped / linked / associated) power control parameter set. For example, in Figure 18 In the example, at time T2, the activation command indicates PL-RS 42 for power control parameter set-1, PL-RS 57 for power control parameter sets-3 and-4, and PL-RS 35 for power control parameter set-5. In one example, the activation command indicating the path loss reference RS for the power control parameter set may include: the activation command includes a first field indicating the path loss reference RS (e.g., ...). Figure 19 The PL-RS ID in the data and the second field indicating the set of power control parameters (e.g., Figure 19 The SRI ID in the table. The first field indicating the path loss reference RS may include the path loss reference RS index in multiple path loss reference RS indexes (e.g., by...). Figure 17 The higher-level parameter PUSCH-PathlossReferenceRS-Id is provided, or is provided by... Figure 17 The higher-level parameter sri (provided by PUSCH-PathlossReferenceRS-Id) identifies / indicates the path loss reference RS. The second field indicating the power control parameter set may include a power control index among multiple power control parameter sets, thereby identifying / indicating the power control parameter set.

[0260] In one example, one or more configuration parameters can indicate one or more configured uplink licenses. One or more configured uplink licenses can include configured uplink licenses (e.g., Figure 18 (The authorized settings in the configuration).

[0261] In one example, the configured uplink grant can be a type 1 configured uplink grant (or a configured grant type 1). In a type 1 configured uplink grant, one or more configuration parameters (e.g., RRC) can indicate / provide / activate the uplink grant. The wireless device can store the uplink grant as the configured uplink grant.

[0262] In one example, the configured uplink grant can be a type 2 configured uplink grant (or a type 2 configured grant). In a type 2 configured uplink grant, the PDCCH can indicate / provide the uplink grant. The radio device can store the uplink grant as the configured uplink grant based on receiving a DCI (or Layer 1 signaling) indicating that the configured uplink grant is active.

[0263] In one example, one or more configuration parameters may indicate one or more configured uplink grant indices (e.g., provided by the higher-level parameter `configuredGrantConfigIndex`). In one example, each of the one or more configured uplink grants may be identified by (or may include) a corresponding configured uplink grant index among one or more configured uplink grant indices. In one example, a first configured uplink grant among one or more configured uplink grants may be identified by (or may include) a first configured uplink grant index among one or more configured uplink grant indices. In one example, a second configured uplink grant among one or more configured uplink grants may be identified by (or may include) a second configured uplink grant index among one or more configured uplink grant indices, and so on. In one example, a configured uplink grant in one or more configured uplink grants may be identified by a configured uplink grant index in one or more configured uplink grant indices (or may include a configured uplink grant index).

[0264] In one example, one or more configuration parameters can indicate a first path loss reference RS among multiple path loss reference RSs used for the configured uplink grant. For example, in Figure 18 In this context, at time T0, the first path loss reference RS for the configured uplink grant is PL-RS 12. One or more configuration parameters indicating the first path loss reference RS used for the configured uplink grant may include, for the configured uplink grant, one or more configuration parameters including a path loss reference RS index from a plurality of path loss reference RS indices (e.g., ...). Figure 22A The pathlossReferenceIndex in the pathlossReferenceIndex is used to identify / indicate the first path loss reference RS.

[0265] In one example, one or more path loss reference RSs measured / tracked by a wireless device may include a first path loss reference RS with configured uplink authorization.

[0266] In one example, one or more configuration parameters may indicate one or more Sounding Reference Signal (SRS) resource sets (e.g., provided by the higher-level parameter SRS-ResourceSet). One or more SRS resource sets may include SRS resource sets. In one example, an SRS resource set may include one or more SRS resources (e.g., SRS resource 1, SRS resource 2...SRS resource K, e.g., provided by the higher-level parameter SRS-Resource).

[0267] In one example, one or more configuration parameters may indicate the SRS resource index of one or more SRS resources in the SRS resource set (e.g., provided by the higher-level parameter SRS-ResourceId). In one example, each SRS resource in one or more SRS resources may be identified by the corresponding SRS resource index in the SRS resource index. In one example, the first SRS resource in one or more SRS resources may be identified by the first SRS resource index in the SRS resource index. The second SRS resource in one or more SRS resources may be identified by the second SRS resource index in the SRS resource index.

[0268] In one example, one or more SRS resources in an SRS resource set may be associated with (or configured / activated / indicated / provided for) one or more spatial relationships (e.g., provided by a higher-level parameter spatialRelationInfo). Each SRS resource in the one or more SRS resources may be associated with (or configured / activated / indicated / provided for) a corresponding spatial relationship in the one or more spatial relationships. The one or more SRS resources associated with (or configured / activated / indicated / provided for) one or more spatial relationships may include one or more configuration parameters indicating one or more spatial relationships of the one or more SRS resources. The one or more SRS resources associated with (or configured / activated / indicated / provided for) one or more spatial relationships may include a MAC CE (e.g., semi-persistent SRS activation / deactivation MAC CE, aperiodic SRS activation / deactivation MAC CE, etc.) received by a wireless device indicating / activating one or more spatial relationships of the one or more SRS resources. In one example, each SRS resource in the one or more SRS resources may be associated with (or configured / activated / indicated / provided for) a corresponding spatial relationship in the one or more spatial relationships, for example, via one or more configuration parameters or MAC CE. In one example, a first SRS resource among one or more SRS resources may be associated with (or configured / activated / indicated / provided) a first spatial relationship among one or more spatial relationships. A second SRS resource among one or more SRS resources may be associated with (or configured / activated / indicated / provided) a second spatial relationship among one or more spatial relationships.

[0269] In one example, one or more spatial relationships may indicate one or more reference signals (e.g., SRS, CSI-RS, SS / PBCH, etc.). In one example, each spatial relationship in one or more spatial relationships may indicate a corresponding reference signal in one or more reference signals. In one example, a first SRS resource in one or more SRS resources may indicate (or may be associated / configured / activated / indicated / provided) the first spatial relationship in one or more spatial relationships, thereby indicating a first reference signal in one or more reference signals (e.g., SS / PBCH block, CSI-RS, SRS). The wireless device may determine a first spatial domain transmission filter for transmitting SRS via the first SRS resource based on the first reference signal. A second SRS resource in one or more SRS resources may indicate (or may be associated / configured / activated / indicated / provided) a second spatial relationship in one or more spatial relationships, thereby indicating a second reference signal in one or more reference signals. The wireless device may determine a second spatial domain transmission filter for transmitting SRS via the second SRS resource based on the second reference signal.

[0270] In one example, the spatial relationship of the SRS resource indicating the reference signal may include: the spatial relationship includes a reference signal index (e.g., SSB index, SRS-ResourceId, NZP CSI-RS resource index, CSI-RS index) that identifies / indicates the reference signal. The wireless device can use the reference signal to derive / determine the spatial domain transmission filter for the SRS resource. The spatial domain transmission filter can provide / indicate spatial settings for SRS transmissions via the SRS resource. The wireless device can determine the spatial domain transmission filter for transmitting SRS via the SRS resource based on the reference signal. In one example, the spatial domain transmission filter can provide / indicate spatial settings for transmitting uplink transmissions (e.g., PUSCH, transmission blocking) via uplink resources. The wireless device can determine the spatial domain transmission filter for uplink transmissions via uplink resources based on the reference signal. The wireless device can receive a DCI that schedules uplink transmissions. The DCI can indicate the SRS resource (e.g., the SRI field in the DCI).

[0271] In one example, the reference signal can be a downlink signal. The downlink signal can include an SS / PBCH block. The downlink signal can include CSI-RS (e.g., periodic CSI-RS, semi-persistent CSI-RS, aperiodic CSI-RS). The downlink signal can include DM-RS (e.g., for PUCCH, PUSCH, etc.). In one example, the wireless device can use a spatial domain receive filter to receive the downlink signal. In one example, based on the reference signal (e.g., indicated by spatial relationships) as the downlink signal, the wireless device can use the same spatial domain transmission filter as the spatial domain receive filter to transmit SRS via SRS resources. In one example, based on the reference signal (e.g., indicated by spatial relationships) as the downlink signal, the wireless device can use a spatial domain receive filter to transmit SRS via SRS resources.

[0272] In one example, the reference signal can be an uplink signal (e.g., periodic SRS, semi-persistent SRS, aperiodic SRS, DM-RS). In one example, the wireless device can use a spatial domain transmission filter to transmit the uplink signal. In an example where the uplink signal is based on a reference signal (e.g., indicated by spatial relationships), the wireless device can use the same spatial domain transmission filter used to transmit the uplink signal via SRS resources to transmit the SRS.

[0273] In one example, one or more configuration parameters may indicate the SRS resource set purpose of one or more SRS resource sets (e.g., provided by higher-level parameter purpose, such as "beamManagement", "codebook", "non-codebook", or "AntennaSwitching"). In one example, each SRS resource set in one or more SRS resource sets may be identified / configured / indicated by the corresponding SRS resource set purpose in the SRS resource set purpose. In one example, an SRS resource set may be identified / configured / indicated by the SRS resource set purpose in the SRS resource set purpose (e.g., "beamManagement", "codebook", "non-codebook", or "AntennaSwitching").

[0274] In one example, one or more configuration parameters may indicate at least one SRS resource in one or more SRS resources of an SRS resource set used for the configured uplink grant. The one or more configuration parameters indicating at least one SRS resource used for the configured uplink grant may include, for the configured uplink grant, an SRS resource indicator (e.g., for the configured uplink grant) that identifies / indicates at least one SRS resource. Figure 22A (The SRS-ResourceIndicator in the original text). For example, the value of an SRS resource indicator can indicate at least one SRS resource. The value of an SRS resource indicator indicating at least one SRS resource can be based on a mapping between a set of values ​​of the SRS resource indicator and one or more SRS resources. The mapping can be pre-configured / predefined / fixed. For example, when the value of the SRS resource indicator is equal to zero, it can indicate the first SRS resource among one or more SRS resources. At least one SRS resource is the first SRS resource. When the value of the SRS resource indicator is equal to one, it can indicate the second SRS resource among one or more SRS resources. At least one SRS resource is the second SRS resource. When the value of the SRS resource indicator is equal to four, it can indicate the first SRS resource and the second SRS resource among one or more SRS resources. At least one SRS resource is the first SRS resource and the second SRS resource.

[0275] In one example, the wireless device may transmit transport blocks (e.g., PUSCH) for configured uplink authorization. Figure 18 (Time T1 in the middle).

[0276] In one example, a wireless device can use / measure / track a first path loss RS (e.g., CSI-RS, SS / PBCH, provided by higher-layer parameters such as referenceSignal, ssb-index, csi-RS-Index, NZP-CSI-RS-ResourceId) indicated by a first path loss reference RS (e.g., PL-RS 12) configured for uplink granting to determine / calculate the transmission power of a transport block. The first path loss reference RS may include an index (e.g., referenceSignal, csi-RS index, ssb-Index) indicating / identifying the first path loss RS. Determining / calculating transmission power based on the first path loss reference RS may include determining / calculating transmission power based on the first path loss RS indicated by the first path loss reference RS. Determining / calculating transmission power based on the first path loss RS may include calculating a downlink path loss estimate of the transmission power based on (e.g., measuring) the first path loss RS (e.g., L1-RSRP, L3-RSRP, or higher-filtered RSRP of the first path loss RS).

[0277] In one example, for a configured uplink grant, the wireless device can transmit transport blocks based on the (determined / calculated) transmission power. In another example, for a configured uplink grant, the wireless device can transmit transport blocks based on the transmission power. In yet another example, for a configured uplink grant, the wireless device can transmit transport blocks with (determined / calculated) transmission power. Also in yet another example, for a configured uplink grant, the wireless device can transmit transport blocks based on a downlink path loss estimate.

[0278] In one example, for a configured uplink grant, the wireless device may transmit a transport block (e.g., PUSCH) based on at least one spatial domain transmission filter. In another example, at least one SRS resource of the configured uplink grant may indicate (or be associated / configured / activated / indicated / provided) at least one spatial relationship among one or more spatial relationships, thereby indicating at least one reference signal among one or more reference signals. The wireless device may determine at least one spatial domain transmission filter for transmitting the transport block based on at least one reference signal. For example, when at least one SRS resource includes an SRS resource indicating (or being associated / configured / activated / indicated / provided) at least one spatial relationship, thereby indicating a reference signal among at least one reference signal, the wireless device may use a spatial domain transmission filter among at least one spatial domain transmission filter to transmit the transport block. The wireless device may determine the spatial domain transmission filter based on the reference signal. Transmitting a transport block using a spatial domain transmission filter may include transmitting one or more layers (or data streams) of the transport block using the spatial domain transmission filter.

[0279] For example, at least one SRS resource may include a first SRS resource indicating (or being associated / configured / activated / indicated / provided) a first spatial relationship in at least one spatial relationship, thereby indicating a first reference signal in at least one reference signal. A wireless device may use at least one spatial domain transmission filter determined based on the first reference signal to transmit a transport block. Transmitting a transport block using the first spatial domain transmission filter may include transmitting one or more first layers (or data streams) of the transport block using the first spatial domain transmission filter.

[0280] For example, at least one SRS resource may include a first SRS resource indicating (or being associated / configured / activated / indicating / providing) a first spatial relationship indicating a first reference signal, and a second SRS resource indicating (or being associated / configured / activated / indicating / providing) a second spatial relationship indicating a second reference signal. A wireless device may use a first spatial domain transmission filter determined based on a first reference signal and a second spatial domain transmission filter determined based on a second reference signal to transmit transport blocks. Transmitting transport blocks using the first and second spatial domain transmission filters may include transmitting one or more first layers (or data streams) of the transport block using the first spatial domain transmission filter and transmitting one or more second layers (or data streams) of the transport block using the second spatial domain transmission filter. In one example, one or more second layers and one or more second layers may be the same. In one example, one or more second layers and one or more second layers may be different. At least one spatial relationship may include a first spatial relationship and a second spatial relationship. At least one reference signal may include a first reference signal and a second reference signal. At least one spatial domain transmission filter may include a first spatial domain transmission filter and a second spatial domain transmission filter.

[0281] In one example, the wireless device can receive an activation command (e.g., in...). Figure 18 (Time T2 in the code). In one example, the activation command could be MAC CE (e.g., Figure 19 (Examples given). In one example, the activation command could be an RRC message (e.g., RRC reconfiguration). In another example, the activation command could be a DCI (e.g., including uplink grant or downlink allocation).

[0282] In one example, the activation command can update the mapping between multiple power control parameter sets and multiple path loss reference RSs.

[0283] In one example, the mapping can be a one-to-one mapping. In a one-to-one mapping, path loss references RS in multiple path loss reference sets can be mapped (or linked) to a first power control parameter set in multiple power control parameter sets. Based on a one-to-one mapping, path loss references RS may not be mapped (or linked) to a second power control parameter set in multiple power control parameter sets that is different from the first power control parameter set. Figure 18 In this process, at time T2, PL-RS 42 is mapped (or linked) to power control parameter set-1. PL-RS 8 is mapped (or linked) to power control parameter set-2.

[0284] In one example, the mapping can be a one-to-many mapping. In a one-to-many mapping, multiple path loss reference RSs can be mapped (or linked) to at least two power control parameter sets from multiple power control parameter sets. Figure 18 In the process, at time T2, PL-RS 35 is mapped (or linked) to power control parameter set -0 and power control parameter set -5. PL-RS 57 is mapped (or linked) to power control parameter set -3 and power control parameter set -4.

[0285] In one example, the mapping can be a many-to-one mapping. In a many-to-one mapping, at least two of the multiple path loss reference RSs can be mapped (or linked) to power control parameter sets in multiple power control parameter sets.

[0286] In one example, updating the mapping between multiple power control parameter sets and multiple path loss reference RSs may include mapping (or updating / selecting / activating) at least one path loss reference RS from the multiple path loss reference RSs to (or for) at least one power control parameter set from the multiple power control parameter sets. In one example, the mapping of at least one path loss reference RS may be a one-to-one mapping. In one example, the mapping of at least one path loss reference RS may be a one-to-many mapping. In one example, the mapping of at least one path loss reference RS may be a many-to-one mapping. Based on mapping (or updating / selecting / activating) at least one path loss reference RS to (or for) at least one power control parameter set, at least one power control parameter set may indicate at least one path loss reference RS.

[0287] In one example, mapping (or updating / selecting / activating) at least one path loss reference RS to (or for) at least one set of power control parameters may include mapping (or updating / selecting / activating) each of the at least one path loss reference RS to (or for) a corresponding power control parameter set in the at least one set of power control parameters. In one example, the mapping of each path loss reference RS may be a one-to-one mapping (e.g., a path loss reference RS mapped to a power control parameter set). In one example, the mapping of each path loss reference RS may be a one-to-many mapping (e.g., a path loss reference RS mapped to at least two power control parameter sets). In one example, the mapping of each path loss reference RS may be a many-to-one mapping (e.g., at least two path loss reference RSs mapped to power control parameter sets).

[0288] In one example, the activation command may include a first field indicating at least one path loss reference RS (e.g., Figure 19The PL-RS ID in the data and a second field indicating at least one set of power control parameters (e.g., Figure 19 The activation command may include a first field indicating each of at least one path loss reference RS and a second field indicating each power control parameter set in at least one power control parameter set. The activation command may include a first field indicating each of at least one path loss reference RS and a second field indicating each power control parameter set in at least one power control parameter set. Based on the first field indicating the path loss reference RS and the second field indicating the power control parameter set, the wireless device may map (or link) the path loss reference RS to the power control parameter set. Mapping (or linking) the path loss reference RS to the power control parameter set may include updating / activating the path loss reference RS for the power control parameter set. In one example, the first field may indicate PL-RS 42 (e.g., Figure 19 In the PL-RS ID_0), the second field can indicate the power control parameter set -1 (e.g., Figure 19 SRI ID_0 in the example. In one example, the first field could indicate PL-RS 57 (e.g., SRI ID_0). Figure 19 In the PL-RS ID_1), the second field can indicate the power control parameter set -3 (e.g., Figure 19 SRI ID_1 in the example. In one example, the first field could indicate PL-RS 57 (e.g., SRI ID_1). Figure 19 In the PL-RS ID_{M-1}, the second field can indicate the power control parameter set -4 (e.g., Figure 19 The SRI ID_{M-1} in the example. In one example, the first field could indicate PL-RS 35 (e.g., Figure 19 In the PL-RS ID_M), the second field can indicate the power control parameter set -5 (e.g., Figure 19 (SRI ID_M in the example). In one example, based on a first field indicating at least one path loss reference RS and a second field indicating at least one set of power control parameters, a wireless device can map (or update / select / activate) at least one path loss reference RS to (or use for) at least one set of power control parameters.

[0289] In one example, at least one path loss reference RS may include Figure 18 PL-RS 42 and PL-RS57 in the example. At least one power control parameter set may include power control parameter set-1, power control parameter set-3, power control parameter set-4, and power control parameter set-5. Figure 18In the process, based on the received activation command (at time T2), PL-RS 42 is mapped (or linked) to power control parameter set-1, PL-RS 57 is mapped (or linked) to power control parameter sets-3 and-4, and PL-RS 35 is mapped (or linked) to power control parameter set-5.

[0290] In one example, the wireless device cannot measure / track at least one path loss reference RS before receiving the activation command (or before applying the activation command).

[0291] In one example, before receiving an activation command (or before applying an activation command), the wireless device may measure / track at least one path loss reference RS or a subset of at least one path loss reference RS.

[0292] In one example, at least one path loss reference RS may include Figure 18 PL-RS 42, PL-RS 57, and PL-RS 35 are included. At least one set of power control parameters may include power control parameter set-1, power control parameter set-3, power control parameter set-4, and power control parameter set-5. Before receiving an activation command (or before applying an activation command), the wireless device cannot measure / track a first subset of at least one path loss reference RS. The first subset may include PL-RS 42 and PL-RS 57. Before receiving an activation command (or before applying an activation command), the wireless device may measure / track a second subset of at least one path loss reference RS. The second subset may include PL-RS 35. Figure 18 In the process, based on the received activation command (at time T2), PL-RS 42 is mapped (or linked) to power control parameter set-1, PL-RS 57 is mapped (or linked) to power control parameter sets-3 and-4, and PL-RS 35 is mapped (or linked) to power control parameter set-5.

[0293] In one example, a wireless device can measure / track one or more path loss reference RSs from a plurality of path loss reference RSs. After receiving (or applying) an activation command, the wireless device can measure / track one or more path loss reference RSs (e.g., in...). Figure 18(Time T2 in the original text). The number of one or more path loss reference RSs may be equal to or less than the maximum number. In one example, the one or more path loss reference RSs being measured / tracked may include at least one path loss reference RS. For example, the one or more path loss reference RSs being measured / tracked after receiving an activation command (or after applying an activation command) may include PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57. For example, the one or more path loss reference RSs being measured / tracked before receiving an activation command (or before applying an activation command) may include PL-RS 35, PL-RS 12, PL-RS 8, and PL-RS 23.

[0294] In one example, one or more configuration parameters may indicate at least one path loss reference RS index of at least one path loss reference RS (e.g., provided by the higher-level parameter PUCCH-PathlossReferenceRS-Id) (e.g., activated / indicated by an activation command). Multiple path loss reference RS indices of multiple path loss reference RSs may include at least one path loss reference RS index of at least one path loss reference RS. One or more path loss reference RS indices of one or more path loss reference RSs may include at least one path loss reference RS index of at least one path loss reference RS. In one example, each path loss reference RS in at least one path loss reference RS may be identified by (or may include) a corresponding path loss reference RS index in at least one path loss reference RS index. In one example, a first path loss reference RS in at least one path loss reference RS (e.g., Figure 18 The PL-RS 45 in the path loss reference RS index can be identified by (or may include) a first path loss reference RS index in at least one path loss reference RS index. In one example, a second path loss reference RS in at least one path loss reference RS (e.g., Figure 18 The PL-RS 57 in the Path Loss Reference RS Index can be identified by (or may include) a second Path Loss Reference RS Index in at least one Path Loss Reference RS Index, etc.

[0295] In one example Figure 18 In one or more path loss references RS at time T0, a first path loss reference RS (e.g., PL-RS 12) can be mapped (or linked) to a power control parameter set (e.g., power control parameter set-1) in multiple power control parameter sets. The first path loss reference RS can indicate the first path loss RS (e.g., by...). Figure 17The higher-level parameters (referenceSignal, ssb-index, csi-RS-Index, NZP-CSI-RS-ResourceId) are provided in this context. In one example, an activation command can map (or update / select / activate / indicate) a second path loss reference RS (e.g., PL-RS 42) among multiple path loss reference RSs used for the power control parameter set. The second path loss reference RS can indicate a second path loss RS (e.g., provided by...). Figure 17The higher-level parameters (referenceSignal, ssb-index, csi-RS-Index, NZP-CSI-RS-ResourceId) are provided. The wireless device can determine / calculate a higher-filtered RSRP value for the second path loss RS for path loss measurement. The wireless device can use the higher-filtered RSRP value of the second path loss RS at the application time (or after). In one example, before receiving an activation command, the wireless device can determine that it is not tracking / measuring the second path loss RS. Based on this determination, the wireless device can use the higher-filtered RSRP value of the second path loss RS at the application time (or after). The application time can be time slot n+k. Time slot n can be the time slot in which the wireless device receives the activation command. In one example, the k time slots can be fixed / preconfigured / predefined. In one example, one or more configuration parameters can indicate the value of the k time slots (e.g., 1 time slot, 2 time slots, 3 time slots). In one example, the k time slots can depend on the number of measurement samples of the second path loss RS. For example, the number of measurement samples can be five. Based on a number of five, k time slots can be the first (or next) time slot after five measurements of the second path loss RS. Based on a number of five, k time slots can be the first (or next) time slot after the fifth measurement sample of the second path loss RS. In one example, the wireless device can transmit an acknowledgment (ACK) for an activation command. The first measurement sample among multiple measurement samples can correspond to the first instance of measuring the second path loss RS for a duration after the wireless device transmits the ACK for the activation command. In one example, the duration can be fixed / predefined / preconfigured (e.g., 3ms, 5ms, 10ms). In one example, the duration can depend on the capabilities of the wireless device (e.g., PDSCH and / or PUSCH and / or PUCCH processing time). In one example, the duration can depend on the subcarrier spacing of the active uplink BWP and / or the active downlink BWP. In one example, before the application time, the wireless device can perform path loss measurements using a higher filtered RSRP value of the first path loss RS. In one example, before applying the activation command can include before the application time. In one example, applying the activation command can include using a higher filtered RSRP value of the second path loss RS indicated by the activation command. In one example, "before application activation" could include "before application time". The wireless device can apply the activation command at (or after) the application time, or based on the application time.

[0296] In one example, the wireless device can determine / select a second path loss reference RS (e.g., for the configured uplink grant) for the wireless device. Figure 18 The selected PL-RS (for example, in) Figure 18(Time T3 in the example). In one example, the wireless device may determine / select the second path loss reference RS based on (or in response to) receiving an activation command. Determining / selecting the second path loss reference RS based on receiving an activation command may include determining / selecting the second path loss reference RS based on applying the activation command (or after applying the activation command).

[0297] In one example, at least one path loss reference RS may not include the first path loss reference RS with configured uplink grant. In one example, one or more path loss reference RSs associated with / mapped to / indicated by multiple power control parameter sets may not include the first path loss reference RS with configured uplink grant. In one example, based on receiving an activation command, the number of one or more path loss reference RSs and the first path loss reference RS may be greater than a maximum number. In one example, based on receiving an activation command, the number of one or more path loss reference RSs indicated by multiple power control parameter sets and the first path loss reference RS may be greater than a maximum number. For example, in... Figure 18 In this context, based on receiving an activation command, one or more path loss reference RSs may include PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57. When the maximum number is four, the number of one or more path loss reference RSs with configured uplink grants (e.g., PL-RS 12) and the number of the first path loss reference RS are greater than the maximum number, which is equal to four (e.g., the base of {PL-RS 35, PL-RS 42, PL-RS 8, PL-RS 57, PL-RS 12} is five). In one example, the wireless device may determine / select a second path loss reference RS based on determining that the number of one or more path loss reference RSs indicated by multiple power control parameter sets and the first path loss reference RS is greater than the maximum number. In one example, the wireless device may determine / select a second path loss reference RS based on determining that the number of one or more path loss reference RSs indicated by multiple power control parameter sets is greater than the maximum number.

[0298] In one example, based on receiving an activation command, the number of path loss reference RSs measured / tracked by the wireless device may be greater than the maximum number. In one example, based on receiving an activation command, the number of path loss reference RSs indicated by multiple power control parameter sets may be greater than the maximum number. In one example, the wireless device may determine / select a second path loss reference RS based on the determination that the number of path loss reference RSs is greater than the maximum number.

[0299] In one example, based on determining / selecting a second path loss reference RS, the wireless device can use the second path loss reference RS to overwrite (or rewrite) the first path loss reference RS of the configured uplink grant (e.g., PL-RS 12). In response to overwriting the first path loss reference RS with the second path loss reference RS, the wireless device can determine / calculate the transmission power of the second transport block of the configured uplink grant without relying on the first path loss reference RS.

[0300] In one example, multiple path loss reference RSs may include a second path loss reference RS. The wireless device may select a second path loss reference RS from among the multiple path loss reference RSs. Determining / selecting a second path loss reference RS may involve selecting a second path loss reference RS from among the multiple path loss reference RSs.

[0301] In one example, one or more path loss reference RS (e.g., Figure 18 PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57 may include a second path loss reference RS. The wireless device may select a second path loss reference RS from one or more path loss reference RSs. Determining / selecting the second path loss reference RS may involve selecting / selecting a second path loss reference RS from one or more path loss reference RSs.

[0302] In one example, at least one path loss reference RS (e.g., Figure 18PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57 may include a second path loss reference RS. The wireless device may select a second path loss reference RS from at least one path loss reference RS. For example, when the number (or base number or path loss reference RS) of at least one path loss RS is equal to one, the second path loss reference RS and at least one path loss reference RS may be the same. For example, when at least one path loss reference RS includes only PL-RS 42, the second path loss reference RS is PL-RS 42. When at least one path loss reference RS includes only PL-RS 57, the second path loss reference RS is PL-RS 57. When at least one path loss reference RS includes a third path loss reference RS and does not include a fourth path loss reference RS different from the third path loss reference RS, the second path loss reference RS is the third path loss reference RS. Determining / selecting a second path loss reference RS for the configured uplink license may include determining / selecting at least one path loss reference RS as the second path loss reference RS for the configured uplink license. For example, when the number of at least one path loss RS (or base or number of path loss reference RS) is greater than one, the wireless device may select a path loss reference RS as a second path loss reference RS from at least one path loss RS.

[0303] In one example, a wireless device may determine / select a second path loss reference RS based on at least one path loss reference RS that does not include a first path loss reference RS with configured uplink grants.

[0304] In one example, the wireless device can grant permission to transmit a second transport block (e.g., PUSCH) for the configured uplink (e.g., Figure 18 (Time T4 in the middle).

[0305] In one example, the wireless device can use / measure / track the second path loss reference RS authorized by the configured uplink (e.g., Figure 18The transmission power of the second transport block is determined / calculated by the second path loss RS (e.g., CSI-RS, SS / PBCH, provided by higher-layer parameters such as referenceSignal, ssb-index, csi-RS-Index, NZP-CSI-RS-ResourceId) indicated by the selected PL-RS. The second path loss reference RS may include an index (e.g., referenceSignal, csi-RS index, ssb-Index) indicating / identifying the second path loss RS. One or more configuration parameters may indicate the index of the second path loss RS. In one example, the second path loss reference RS may be derived from one or more path loss reference RS indices among a plurality of path loss reference RS indices (e.g., provided by higher-layer parameters such as referenceSignal, ssb-index, csi-RS-Index, NZP-CSI-RS-ResourceId). Figure 17 The higher-level parameter PUSCH-PathlossReferenceRS-Id is provided to identify / indicate the path loss reference RS. In one example, the wireless device can determine the index (or RS resource index) of the second path loss reference RS based on (or according to) the path loss reference RS index of the second path loss reference RS. The second path loss reference RS with the path loss reference RS index can include the index of the second path loss RS.

[0306] In one example, determining / calculating transmission power based on a second path loss reference RS may include determining / calculating transmission power based on a second path loss RS indicated by the second path loss reference RS. Determining / calculating transmission power based on a second path loss RS may include a downlink path loss estimate that calculates transmission power based on (e.g., measurement) the second path loss RS (e.g., L1-RSRP, L3-RSRP, or higher filtered RSRP of the second path loss RS).

[0307] In one example, for a configured uplink grant, the wireless device can transmit the second transport block based on the (determined / calculated) transmission power. In another example, for a configured uplink grant, the wireless device can transmit the second transport block based on the transmission power. In yet another example, for a configured uplink grant, the wireless device can transmit the second transport block with the (determined / calculated) transmission power. Also in yet another example, for a configured uplink grant, the wireless device can transmit the second transport block based on a downlink path loss estimate.

[0308] In one example, one or more configuration parameters can indicate / include path loss RS update parameters (e.g., enablePLRSupdateForPUSCHSRS). Path loss RS update parameters can enable MAC CE-based path loss RS updates for PUSCH / SRS. Based on one or more configuration parameters indicating / including path loss RS update parameters, an activation command can update the mapping between multiple path loss reference RSs and multiple power control parameter sets.

[0309] In one example, determining / selecting a second path loss reference RS can be based on one or more configuration parameters that indicate / include path loss RS update parameters (e.g., enablePLRSupdateForPUSCHSRS). When one or more configuration parameters indicate / include path loss RS update parameters (e.g., enablePLRSupdateForPUSCHSRS), the wireless device can determine / select a second path loss reference RS.

[0310] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS mapped (or linked or indicated) to a set of power control parameters in multiple power control parameter sets (e.g., by...). Figure 17 The power control parameter set, provided by the higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id, has a power control index equal to zero (e.g., provided by the higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id). Figure 17 (Provided by the higher-level parameter SRI-PUSCH-PowerControlId). In one example, a power control parameter set can be identified by a power control index. The power control indexes of multiple power control parameter sets can include the power control indexes of the power control parameter sets. A power control index can be equal to zero. In one example, the path loss reference RS index of a second path loss reference RS can be mapped to a power control parameter set whose power control index is equal to zero (or indicated by or includes the power control parameter set). In one example, one or more path loss reference RSs can include a second path loss reference RS. In one example, at least one path loss reference RS can include a second path loss reference RS.

[0311] In one example, a path loss reference RS mapped (or linked) to a power control parameter set may include a path loss reference RS index mapped (or linked) to the power control parameter set (or identifying the path loss reference RS). The path loss reference RS index mapped (or linked) to the power control parameter set (or identifying the path loss reference RS) may include a path loss reference RS index included in the power control parameter set (or identifying the path loss reference RS).

[0312] For example, in Figure 18 In the context of power control parameter set -0, when the power control index is zero, the (determined / selected) second path loss reference RS is PL-RS 35. When the power control index of power control parameter set -1 is zero, the (determined / selected) second path loss reference RS is PL-RS 42. When the power control index of power control parameter set -4 is zero, the (determined / selected) second path loss reference RS is PL-RS 57.

[0313] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS mapped (or linked) to a set of power control parameters in multiple power control parameter sets (e.g., by...). Figure 17 The power control parameter set (provided by the higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id) has the lowest (or highest) power control index in the power control index (e.g., provided by the higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id). Figure 17 The higher-level parameter SRI-PUSCH-PowerControlId is provided in [the database / system]. For example, in [the database / system]... Figure 18 In this context, when the power control index of power control parameter set-0 is the lowest (or highest) among the power control indices of power control parameter sets-0,-1, ...,-5, then the (determined / selected) second path loss reference RS is PL-RS 35. When the power control index of power control parameter set-4 is the lowest (or highest) among the power control indices of power control parameter sets-0,-1, ...,-5, then the (determined / selected) second path loss reference RS is PL-RS 57. In one example, one or more path loss reference RSs may include a second path loss reference RS. In one example, at least one path loss reference RS may include a second path loss reference RS.

[0314] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS mapped (or linked) to a power control parameter set in at least one power control parameter set (e.g., by...). Figure 17 The power control parameter set, provided by the higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id, has the lowest (or highest) power control index in at least one power control index of at least one power control parameter set (e.g., provided by...). Figure 17 The higher-level parameter SRI-PUSCH-PowerControlId is provided in [the database / system]. For example, in [the database / system]... Figure 18 In this context, when the power control index of power control parameter set-1 is the lowest (or highest) among the power control indices of power control parameter set-1, power control parameter set-3, control parameter set-4, and power control parameter set-5, then the (determined / selected) second path loss reference RS is PL-RS 42. When the power control index of power control parameter set-4 is the lowest (or highest) among the power control indices of power control parameter set-1, power control parameter set-3, control parameter set-4, and power control parameter set-5, then the (determined / selected) second path loss reference RS is PL-RS 57. In one example, one or more path loss reference RSs may include a second path loss reference RS. In one example, at least one path loss reference RS may include a second path loss reference RS. At least one power control parameter set includes power control parameter set-1, power control parameter set-3, control parameter set-4, and power control parameter set-5.

[0315] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS with the lowest (or highest) path loss reference RS index from one or more path loss reference RS indices (e.g., by...). Figure 17 The higher-level parameter PUSCH-PathlossReferenceRS or the higher-level parameter PUSCH-PathlossReferenceRS-Id is provided. For example, in Figure 18In this context, if the path loss reference RS index of PL-RS 35 is the lowest (or highest) among the path loss reference RS indices of PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57, then the (determined / selected) second path loss reference RS can be PL-RS 35. Similarly, if the path loss reference RS index of PL-RS 57 is the lowest (or highest) among the path loss reference RS indices of PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57, then the (determined / selected) second path loss reference RS can be PL-RS 57. One or more path loss reference RSs include PL-RS 35, PL-RS 42, PL-RS 8, and PL-RS 57.

[0316] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS with the lowest (or highest) path loss reference RS index from at least one path loss reference RS index of at least one path loss reference RS (e.g., by...). Figure 17 The higher-level parameters PUSCH-PathlossReferenceRS or PUSCH-PathlossReferenceRS-Id are provided in the code. For example, in... Figure 18 In this context, if the path loss reference RS index of PL-RS 42 is the lowest (or highest) among the path loss reference RS indices of PL-RS 42 and PL-RS 57, then the (determined / selected) second path loss reference RS is PL-RS 42. Similarly, if the path loss reference RS index of PL-RS 57 is the lowest (or highest) among the path loss reference RS indices of PL-RS 42 and PL-RS 57, then the (determined / selected) second path loss reference RS is PL-RS 57. At least one path loss reference RS includes both PL-RS 42 and PL-RS 57.

[0317] In one example, the activation command may include a field indicating a second path loss reference RS. The field indicating the second path loss reference RS may include a path loss reference index (or an identifier of the second path loss reference RS). In one example, one or more path loss reference RS indices may include path loss reference indexes. In one example, multiple path loss reference RS indices may include path loss reference indexes. In one example, at least one path loss reference RS indice may include path loss reference indexes. In one example, determining / selecting a second path loss reference RS may include determining / selecting the second path loss reference RS indicated by the activation command.

[0318] In one example, the first field of the activation command indicating at least one path loss reference RS may include one or more path loss reference RS entries (e.g., Figure 19 The path loss reference RS entries are PL-RS ID_0, PL-RS ID_1, ..., PL-RS ID_{M-1}, PL-RS ID_M. Each path loss reference RS entry in one or more path loss reference RS entries may be associated with (or may identify) a corresponding path loss reference RS in at least one path loss reference RS. In one example, a first path loss reference RS entry (e.g., PL-RS ID_0) in one or more path loss reference RS entries may include (or identify) the path loss reference RS index of (the determined / selected) second path loss reference RS. The first path loss reference RS entry may include the lowest eight bits of the activation command (e.g., ...). Figure 19 The path loss reference RS index is in the octet 2). Determining / selecting the second path loss reference RS may include determining / selecting the path loss reference RS indicated by the first path loss reference RS entry in the activation command.

[0319] In one example, at least one second power control parameter set from a plurality of power control parameter sets can indicate a first path loss reference RS for a configured uplink grant. The wireless device can determine that at least one second power control parameter set indicates a first path loss reference RS for a configured uplink grant. The at least one second power control parameter set indicating the first path loss reference RS may include the first path loss reference RS being mapped (or updated / selected / activated or indicated) to (or used for) at least one second power control parameter set. Each power control parameter set from at least one second power control parameter set can indicate a first path loss reference RS for a configured uplink grant. In one example, determining / selecting a second path loss reference RS may include determining / selecting a selected path loss reference RS from at least one path loss reference RS that is mapped (or linked or indicated) to a power control parameter set from at least one second power control parameter set, the power control parameter set having the lowest (or highest) power control index among at least one second power control index of at least one second power control parameter set (e.g., by...). Figure 17 The higher-level parameter SRI-PUSCH-PowerControlId is provided in [the documentation / reference]. For example, in [the documentation / reference]... Figure 18In this configuration, when the first path loss reference RS for the configured uplink grant is PL-RS 12, at least one second power control parameter set includes power control parameter set-1 and power control parameter set-4 based on power control parameter set-1 and power control parameter set-4 indicating PL-RS 12. When the power control index of power control parameter set-1 is the lowest (or highest) among the power control indices of power control parameter set-1 and power control parameter set-4, the (determined / selected) second path loss reference RS is PL-RS 42 indicated by power control parameter set-1 (e.g., after receiving an activation command). When the power control index of power control parameter set-4 is the lowest (or highest) among the power control indices of power control parameter set-1 and power control parameter set-4, the (determined / selected) second path loss reference RS is PL-RS 57 indicated by power control parameter set-4 (e.g., after receiving an activation command).

[0320] In one example, at least one power control parameter set may include at least one second power control parameter set. The power control indexes of multiple power control parameter sets may include at least one second power control index of at least one second power control parameter set. Each power control parameter set of at least one second power control parameter set may be identified by (or may include) a corresponding power control index of at least one second power control index.

[0321] Figure 20 This is an exemplary flowchart of power control according to one aspect of an embodiment of the present disclosure.

[0322] In one example, the wireless device may receive one or more messages. These messages may include one or more configuration parameters for the cell (or the cell's active uplink BWP, or the cell's active uplink BWP for an uplink carrier). The one or more configuration parameters may indicate multiple path loss reference signals (RS) for path loss estimation of uplink transmissions (e.g., PUSCH, PUCCH, SRS). The one or more configuration parameters may indicate multiple sets of power control parameters for physical uplink channels (e.g., PUSCH, PUCCH, SRS). In one example, each power control parameter set in the multiple power control parameter sets may indicate (or be mapped / linked to) a corresponding path loss reference RS among the multiple path loss reference RSs. The one or more configuration parameters may indicate a first path loss reference RS among the multiple path loss reference RSs used for configured uplink grants.

[0323] In one example, the first path loss reference RS and the path loss reference RS, indicated by a power control parameter set from a set of multiple power control parameters, can be the same or different.

[0324] In one example, one or more configuration parameters can indicate the power control index of multiple power control parameter sets.

[0325] In one example, one or more configuration parameters can indicate multiple path loss reference RS indices for multiple path loss reference RSs.

[0326] In one example, for a configured uplink grant, the wireless device may transmit a first transport block with a transmission power determined based on a first path loss reference RS. Transmitting the first transport block may include transmitting the first transport block with a transmission power determined based on measurements of the first path loss RS (e.g., SS / PBCH block, CSI-RS) indicated by the first path loss reference RS (L1-RSRP, L3-RSRP, higher-level filtered RSRP, etc.).

[0327] In one example, the wireless device may receive an activation command that updates the mapping between multiple path loss reference RSs and multiple power control parameter sets. The activation command may instruct / activate / select / map at least one of the multiple path loss reference RSs for use / mapping to at least one power control parameter set in the multiple power control parameter sets.

[0328] In one example, each of the at least one path loss reference RS is mapped to a corresponding power control parameter set in at least one power control parameter set (indicated by, associated with, linked to, or activated by said corresponding power control parameter set). In one example, the activation command may include a first field indicating at least one power control parameter set. The activation command may include a second field indicating at least one path loss reference RS.

[0329] In one example, a wireless device can determine / select a second path loss reference RS for the configured uplink license based on receiving an activation command.

[0330] In one example, for a configured uplink grant, the wireless device can transmit a second transport block with a transmission power determined based on a second path loss reference RS. In one example, the transmission of the first transport block occurs before receiving the activation command. In one example, the transmission of the second transport block occurs after receiving the activation command (or applying the activation command).

[0331] In one example, one or more configuration parameters may indicate / include a path loss reference RS update parameter (enablePLRSupdateForPUSCHSRS), thereby enabling the activation command to update multiple path loss reference RSs used for uplink transmission. In one example, based on one or more configuration parameters indicating / including a path loss RS update parameter (e.g., enablePLRSupdateForPUSCHSRS), the wireless device can determine / select a second path loss reference RS for the configured uplink license.

[0332] In one example, the number of path loss reference RSs may be greater than (or more than) the maximum number of path loss RSs that the wireless device can, for example, measure / track simultaneously. Because this number is greater than (or more than) the maximum number, the wireless device cannot measure / track multiple path loss reference RSs simultaneously. For example, this number may be the UE's ability to track multiple path loss reference RSs simultaneously.

[0333] In one example, multiple power control parameter sets can indicate one or more path loss reference RSs among multiple path loss reference RSs. Multiple power control parameter sets can indicate one or more path loss reference RSs based on receiving an activation command. After receiving the activation command (or after applying the activation command), multiple power control parameter sets can indicate one or more path loss reference RSs.

[0334] In one example, one or more path loss reference RSs may include at least one path loss reference RS indicated / activated / selected by an activation command. One or more path loss reference RSs may include one or more second path loss reference RSs tracked / measured prior to receiving the activation command, the second path loss reference RSs being indicated by at least one third power control parameter set from a plurality of power control parameter sets. The plurality of path loss reference RSs may include one or more second path loss reference RSs. The at least one third power control parameter set and the at least one power control parameter set may be the same or different. Determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS with the lowest / highest path loss reference RS index from one or more path loss reference RS indices of the one or more path loss reference RSs. The plurality of path loss reference RS indices may include one or more path loss reference RS indices.

[0335] In one example, the wireless device may determine that the number of one or more path loss reference RSs is equal to or greater than a maximum number (e.g., four or five). The wireless device may determine that the number of one or more path loss reference RSs (e.g., mapped to multiple power control parameter sets) tracked / measured based on receiving an activation command (or after receiving an activation command) is equal to or greater than a maximum number (e.g., four or five). In one example, at least one path loss reference RS may not include a first path loss reference RS with configured uplink grants. In one example, one or more path loss reference RSs may not include a first path loss reference RS with configured uplink grants. In one example, the wireless device may determine / select a second path loss reference RS based on determining that the number of one or more path loss reference RSs is equal to or greater than the maximum number. In one example, the wireless device may determine / select a second path loss reference RS based on one or more path loss reference RSs that do not include the first path loss reference RS. In one example, the wireless device may determine / select a second path loss reference RS based on determining that the number of one or more path loss reference RSs is equal to or greater than the maximum number and that one or more path loss reference RSs do not include the first path loss reference RS.

[0336] In one example, the number of at least one path loss reference RS and the number of first path loss reference RSs may be greater than a maximum number (e.g., four or five). At least one path loss reference RS may not include the first path loss reference RS. The wireless device may determine / select a second path loss reference RS based on the determination that the number of at least one path loss reference RS and the number of first path loss reference RSs is greater than the maximum number. In one example, the number of one or more path loss reference RSs and the number of first path loss reference RSs may be greater than a maximum number (e.g., four or five). One or more path loss reference RSs may not include the first path loss reference RS. The wireless device may determine / select a second path loss reference RS based on the determination that the number of one or more path loss reference RSs and the number of first path loss reference RSs is greater than the maximum number.

[0337] In one example, determining / selecting a second path loss reference RS may include: an activation command including a field indicating the second path loss reference RS. This field may include a path loss reference signal index that indicates / identifies the second path loss reference RS.

[0338] In one example, determining / selecting a second path loss reference RS may include: the first path loss reference RS entry in the activation command may include / indicate the second path loss reference RS. Each path loss reference RS entry in the activation command may indicate a corresponding path loss reference RS among at least one path loss reference RS (or may be associated with said corresponding path loss reference RS). In one example, the first field of the activation command may include one or more path loss reference RS entries, which include the first path loss reference RS entry.

[0339] In one example, for instance, before receiving an activation command, the wireless device may determine at least one second set of power control parameters from a set of multiple power control parameters that indicate the first path loss reference RS configured for uplink authorization.

[0340] In one example, prior to receiving an activation command, the wireless device may determine at least one set of power control parameters from a plurality of power control parameter sets indicating a first path loss reference RS for configured uplink grants. The wireless device may select a power control parameter set from at least one second set of power control parameters. Selecting a power control parameter set may include selecting the power control parameter set with the lowest / highest power control index from at least one second power control index of the at least one second power control parameter set. The selected power control parameter set may indicate (e.g., after receiving the activation command) a second path loss reference RS. In one example, the activation command may indicate / select a second path loss reference RS for the power control parameter set. At least one path loss reference RS may include a second path loss reference RS. The power control indices of the plurality of power control parameter sets may include at least one second power control index.

[0341] In one example, determining / selecting a second path loss reference RS may include determining / selecting a second path loss reference RS from at least one path loss reference RS. In another example, determining / selecting a second path loss reference RS may include determining / selecting at least one path loss reference RS as the second path loss reference RS. Determining / selecting a second path loss reference RS from at least one path loss reference RS may include determining / selecting a second path loss reference RS with the lowest / highest path loss reference RS index from at least one path loss reference RS index. Multiple path loss reference RS indices may include at least one path loss reference RS index.

[0342] In one example, the wireless device can select a power control parameter set from multiple power control parameter sets. Selecting a power control parameter set may include choosing the power control parameter set with the lowest / highest power control index from among the power control indices of multiple power control parameter sets. In one example, the wireless device can select a power control parameter set from at least one power control parameter set. In one example, selecting a power control parameter set may include selecting the power control parameter set with a power control index equal to a value (e.g., zero) from among the power control indices of multiple power control parameter sets. The power control parameter set may indicate a second path loss reference RS. In one example, an activation command may indicate / update / activate the second path loss reference RS used for the power control parameter set.

[0343] In one example, selecting a power control parameter set may include selecting the power control parameter set with the lowest / highest power control index from at least one power control index of at least one power control parameter set. The power control index of multiple power control parameter sets may include at least one power control index of at least one power control parameter set. The power control parameter set may indicate a second path loss reference RS. An activation command may indicate / update / activate the second path loss reference RS used for the power control parameter set.

[0344] Figure 21 This is an example of a MAC CE for power control according to one aspect of an embodiment of the present disclosure.

[0345] In one example, the wireless device can receive one or more messages. These messages may include one or more configuration parameters of the cell (or the cell's active uplink BWP, or the cell's active uplink BWP for an uplink carrier). One or more configuration parameters may indicate multiple path loss reference signals (RSs) for path loss estimation used for uplink transmissions (e.g., PUSCH, PUCCH, SRS). One or more configuration parameters may indicate a first path loss reference RS among the multiple path loss reference RSs used for the configured uplink grant. An index of the path loss reference RS used for / belonging to the configured uplink grant (e.g., ...) Figure 22A The first value of the pathlossReferenceIndex in the configuration can indicate the first path loss reference RS. One or more configuration parameters can indicate multiple power control parameter sets for physical uplink channels (e.g., PUSCH, PUCCH, SRS). In one example, the power control parameter set in the multiple power control parameter sets can indicate (or can be mapped / linked to) a third path loss reference RS among multiple path loss reference RSs. The path loss reference RS index used / belonging to the power control parameter set (e.g., by...) Figure 17The higher-level parameter PUSCH-PathlossReferenceRS-Id or by Figure 17 The third value of the higher-level parameter sri (provided by PUSCH-PathlossReferenceRS-Id) can indicate the third path loss reference RS.

[0346] In one example, for a configured uplink grant, the wireless device may transmit a first transport block with a transmission power determined based on a first path loss reference RS. Transmitting the first transport block may include transmitting the first transport block with a transmission power determined based on measurements of the first path loss RS (e.g., SS / PBCH block, CSI-RS) indicated by the first path loss reference RS (L1-RSRP, L3-RSRP, higher-level filtered RSRP, etc.).

[0347] In one example, a wireless device may receive a DCI-scheduled transmission of a third transport block. The DCI may indicate a set of power control parameters (e.g., the SRI field in the DCI may indicate this). Based on the DCI indicating the set of power control parameters, the wireless device may transmit the third transport block with a transmission power determined based on the third path loss reference RS indicated by the power control parameter set.

[0348] In one example, the wireless device can receive a first activation command (e.g., in...). Figure 18 The activation command at time T2 in the table (the first activation command) activates / updates the third value of the path loss reference RS index used for / belonging to the power control parameter set with a fourth value indicating a fourth path loss reference RS from multiple path loss RSs. In one example, the third and fourth values ​​can be different. The third path loss reference RS and the fourth path loss reference RS can be different.

[0349] In one example, the first activation command may include a first field indicating the fourth path loss reference RS (e.g., Figure 19 The PL-RS ID in the data and the second field indicating the set of power control parameters (e.g., Figure 19 The first field may include a path loss reference RS index that identifies the fourth path loss reference RS. Multiple path loss reference RS indices may include path loss reference RS indices that identify the fourth path loss reference RS. The second field may include a power control index that identifies the power control parameter set. The power control index may include a power control index.

[0350] In one example, the wireless device may receive a second DCI scheduled transmission for a fourth transport block. The wireless device may receive the DCI after receiving a first activation command (or after applying the first activation command). The second DCI may indicate a power control parameter set (e.g., the SRI field in the second DCI may indicate this). Based on the second DCI indicating the power control parameter set, the wireless device may transmit the fourth transport block with a transmission power determined based on a fourth path loss reference RS activated / updated via the first activation command for the power control parameter set.

[0351] In one example, the wireless device can receive a second activation command (e.g., in...). Figure 21 In the second activation command, a second value indicating a second path loss reference RS from a plurality of path loss RSs is used to activate / update a first value for / belonging to the configured uplink grant of the path loss reference RS index. In one example, the first and second values ​​may be different. The first path loss reference RS and the second path loss reference RS may be different.

[0352] In one example, the second activation command may include a first field indicating the second path loss reference RS (e.g., Figure 21 The PL-RS ID in the data and the indication of the configured uplink grant (e.g., Figure 21 The second field (configured license ID) may include a path loss reference RS index that identifies the second path loss reference RS. Multiple path loss reference RS indexes may include path loss reference RS indexes that identify the second path loss reference RS. The second field may include a configured uplink license index that identifies the configured uplink license. In one example, one or more configured uplink license indices may include the configured uplink license. One or more configured uplink licenses may include the configured uplink license.

[0353] In one example, the second activation command can activate / update the path loss reference RS index of the configured uplink grant (e.g., corresponding to...). Figure 22A The first value of pathlossReferenceIndex in rrc-ConfiguredUplinkGrant.

[0354] In one example, the second activation command (e.g., in) Figure 21 (The middle) can include one or more fields.

[0355] In one example, the first field of one or more fields may include at least one path loss reference RS index from multiple path loss reference RS indexes (e.g., Figure 21The first field contains PL-RS IDs from PL-RS ID_0 to PL-RS ID_M, which indicate / identify at least one path loss reference RS (or are associated with) among a plurality of path loss reference RSs. In one example, each path loss reference RS index in the at least one path loss reference RS index in the first field may indicate a corresponding path loss reference RS among the at least one path loss reference RS. In one example, PL-RS ID_0 may indicate PL-RS 42. PL-RS ID_1 may indicate PL-RS 57. PL-RS ID_M may represent PL-RS 35, and so on. In one example, the first length of the first field may be a first value (e.g., (M+1)*6 bits, where M+1 is the number of at least one path loss reference RS).

[0356] In one example, the second field of one or more fields may include at least one of the configured uplink grant indexes (e.g., Figure 21 The configured uplink license IDs (e.g., configured uplink license IDs 0 through M) in the second field indicate / identify at least one configured uplink license among one or more configured uplink licenses (or associated with said at least one configured uplink license). In one example, each configured uplink license index in at least one configured uplink license index in the second field can indicate a corresponding configured uplink license among at least one configured uplink license. In one example, configured uplink license ID 0 can indicate the first configured uplink license among at least one configured uplink license (e.g., configured uplink license 3). Configured uplink license ID 8 can indicate the second configured uplink license among at least one configured uplink license (e.g., configured uplink license 5), and so on. In one example, the second length of the second field can be a second value (e.g., (M+1)*4 bits, where M+1 is the number of at least one configured uplink license).

[0357] In one example, each path loss reference RS in the first field can be activated / indicated / updated for the corresponding configured uplink grant in the second field. For example, the wireless device can activate / update the path loss reference RS indicated by PL-RS ID_0 in the first field of the second activation command for the configured uplink grant identified by the configured grant ID_0 in the second field of the second activation command. The wireless device can activate / update the path loss reference RS indicated by PL-RS ID_1 in the first field of the second activation command for the configured uplink grant identified by the configured grant ID_{M-1} in the second field of the second activation command. The wireless device can activate / update the path loss reference RS indicated by PL-RS ID_{M-1} in the first field of the second activation command for the configured uplink grant identified by the configured grant ID_M in the second field of the second activation command. Based on the configured uplink grant activation / update path loss reference RS, the configured uplink grant can indicate the path loss reference RS.

[0358] In one example, a third field in one or more fields may indicate / include the identity of the serving cell (e.g., Figure 21 The serving cell ID is specified in the second activation command. The serving cell can be a cell. The wireless device can apply one or more actions to the serving cell based on a third field indicating its identity, according to the second activation command. In one example, the third length of the third field can be a third value (e.g., 5 bits).

[0359] In one example, the fourth field of one or more fields can indicate / include a BWP index (e.g., BWP ID) of the BWP (e.g., uplink BWP, downlink BWP). A second activation command can apply the BWP based on the fourth field indicating the BWP index. In one example, the fourth length of the fourth field can be a fourth value (e.g., 2 bits).

[0360] In one example, the fifth field in one or more fields can indicate the uplink carrier (e.g., SUL, NUL) of the serving cell indicated by the third field. In one example, when the value of the fifth field is "0", the uplink carrier can be NUL. When the value of the fifth field is "1", the uplink carrier can be SUL. The second activation command can apply the uplink carrier based on the fifth field indicating the uplink carrier. In one example, the fifth length of the fifth field can be a fifth value (e.g., 1 bit).

[0361] In one example, for a configured uplink grant, the wireless device may transmit a second transport block with a transmission power determined based on a second path loss reference RS. The wireless device may transmit the second transport block after receiving a second activation command (or after applying the second activation command). Transmitting the second transport block may include transmitting the second transport block with a transmission power determined based on measurements of the second path loss RS (e.g., SS / PBCH block, CSI-RS) indicated by the second path loss reference RS (L1-RSRP, L3-RSRP, higher-level filtered RSRP, etc.).

[0362] In one example, one or more configuration parameters may indicate / include path loss RS update parameters (e.g., enablePLRSupdateForPUSCHSRS). In one example, when one or more configuration parameters indicate / include path loss RS update parameters, the wireless device may receive a second activation command. The wireless device may receive the second activation command based on one or more configuration parameters that indicate / include path loss RS update parameters.

[0363] Figure 22A and Figure 22B This is an example of uplink authorized power control configured according to one aspect of the implementation of this disclosure. Figure 23 and Figure 24 yes Figure 22A and Figure 22B An exemplary flowchart of the configured uplink licensed power control discussed in the article.

[0364] In one example, one or more configuration parameters may indicate a first path loss reference RS among a plurality of path loss reference RSs for the configured uplink grant. The one or more configuration parameters indicating the first path loss reference RS for the configured uplink grant may include, for the configured uplink grant, a path loss reference RS index among a plurality of path loss reference RS indices (e.g., ...). Figure 22A and Figure 22B The pathlossReferenceIndex in the pathlossReferenceIndex identifies / indicates the first path loss reference RS.

[0365] In one example, for a configured uplink grant, the wireless device can transmit a first transport block at a transmission power. The wireless device can determine / calculate the transmission power based on the first path loss reference RS of the configured uplink grant.

[0366] In one example, one or more configuration parameters may not indicate / include a path loss reference RS update parameter (enablePLRSupdateForPUSCHSRS) that enables the activation command to update multiple path loss reference RSs used for uplink transmission. In one example, in response to one or more configuration parameters not indicating / excluding a path loss reference RS update parameter, the wireless device may determine / calculate the transmission power based on a first path loss reference RS.

[0367] In one example, one or more configuration parameters may indicate at least one SRS resource in one or more SRS resources of an SRS resource set used for the configured uplink grant. The one or more configuration parameters indicating at least one SRS resource used for the configured uplink grant may include, for the configured uplink grant, a first SRS resource indicator (e.g., for the configured uplink grant) that identifies / indicates at least one SRS resource. Figure 22A and Figure 22B (srs-ResourceIndicator in the context). For example, the value of the first SRS resource indicator can indicate at least one SRS resource. The first SRS resource indicator can indicate / identify (or be mapped to) a power control parameter set in multiple power control parameter sets. The first SRS resource indicator indicating / identifying (or being mapped to) a power control parameter set may include the first SRS resource indicator value and the power control index identifying the power control parameter being the same. The power control index may include a power control index. The power control parameter set can indicate a second path loss reference RS in multiple path loss reference RSs. The power control parameter set may include a path loss reference RS index in multiple path loss reference RS indices (e.g., via...). Figure 17 The sriPUSCH-PathlossReferenceRS-Id in the database identifies / indicates the second path loss reference RS.

[0368] In one example, for the configured uplink grant, one or more configuration parameters may include a second SRS resource indicator (e.g., Figure 22BThe second SRS resource indicator (SRS-ResourceIndicator-r16) can indicate / identify (or be mapped to) a power control parameter set in multiple power control parameter sets. The power control parameter set indicated / identified (or mapped to) by the second SRS resource indicator may include a value of the second SRS resource indicator that is the same as the power control index identifying the power control parameter. The power control index may include a power control index. The power control parameter set can indicate a second path loss reference RS in multiple path loss reference RSs. The power control parameter set may include a path loss reference RS index in multiple path loss reference RS indices (e.g., via...). Figure 17 The sri PUSCH-PathlossReferenceRS-Id in the database identifies / indicates the second path loss reference RS.

[0369] In one example, the wireless device can ignore the first path loss reference RS of the configured uplink grant.

[0370] In one example, for the configured uplink license, the wireless device can transmit a second transport block at transmit power.

[0371] In one example, Figure 23 In response to ignoring the path loss reference RS index authorized by the configured uplink (e.g., Figure 22A and Figure 22B The first path loss reference RS is indicated by the pathlossReferenceIndex in the configuration. The wireless device can then use the first SRS resource indicator (e.g., authorized by the configured uplink) as a reference. Figure 22A and Figure 22B The second path loss reference RS (SRS) indicated by the srs-ResourceIndicator in the data is used to determine / calculate the transmission power.

[0372] In one example, Figure 24 In response to ignoring the path loss reference RS index authorized by the configured uplink (e.g., Figure 22A and Figure 22B The first path loss reference RS is indicated by the pathlossReferenceIndex in the configuration. The wireless device can then use a second SRS resource indicator (e.g., authorized by the configured uplink) to determine the path loss reference index. Figure 22B The second path loss reference RS (srs-ResourceIndicator-r16) in the srs-ResourceIndicator-r16 is used to determine / calculate the transmission power.

[0373] In one example, ignoring the first path loss reference RS may include overwriting (or replacing, replacing, or updating) the first path loss reference RS with a second path loss reference RS. Based on ignoring the first path loss reference RS, the wireless device can determine / calculate the transmission power of the second transport block without relying on the first path loss reference RS.

[0374] In one example, one or more configuration parameters may indicate / include the path loss reference RS update parameter (enablePLRSupdateForPUSCHSRS), thereby enabling the activation command to update multiple path loss reference RSs used for uplink transmission. In one example, the wireless device may ignore the first path loss reference RS based on one or more configuration parameters that indicate / include the path loss reference RS update parameter.

[0375] In one example, when one or more configuration parameters indicate / include the path loss reference RS update parameter (enablePLRSupdateForPUSCHSRS), the wireless device can expect one or more configuration parameters to include a second SRS resource indicator for the configured uplink grant (e.g., Figure 22B (srs-ResourceIndicator-r16 in the example). In one example, when a base station determines one or more configuration parameters including the transmission indication / path loss reference RS update parameter (enablePLRSupdateForPUSCHSRS), the base station can ensure that the one or more configuration parameters include a second SRS resource indicator for the configured uplink grant (e.g., ...). Figure 22B (srs-ResourceIndicator-r16 in the configuration). The assurance may include the presence of a second SRS resource indicator for the configured uplink authorization in one or more configuration parameters.

[0376] In one example, the wireless device may determine / calculate the transmission power for the configured uplink grant based on a second path loss reference RS until it receives one or more second configuration parameters indicating the path loss reference RS for the configured uplink grant. Multiple path loss reference RSs may be included.

[0377] In one example, the wireless device may receive an activation command that updates the mapping between multiple path loss reference RSs and multiple power control parameter sets. The activation command may instruct / activate / select / map at least one of the multiple path loss reference RSs for use / mapping to at least one power control parameter set in the multiple power control parameter sets.

[0378] In one example, multiple power control parameter sets can indicate one or more path loss reference RSs among multiple path loss reference RSs. Multiple power control parameter sets can indicate one or more path loss reference RSs based on receiving an activation command. After receiving the activation command (or after applying the activation command), multiple power control parameter sets can indicate one or more path loss reference RSs.

[0379] In one example, one or more path loss reference RSs may include at least one path loss reference RS indicated / activated / selected by an activation command. The one or more path loss reference RSs may include one or more second path loss reference RSs tracked / measured prior to receiving the activation command, the second path loss reference RSs being indicated by at least one third power control parameter set from a plurality of power control parameter sets. The plurality of path loss reference RSs may include one or more second path loss reference RSs. The at least one third power control parameter set and the at least one power control parameter set may be the same or different.

[0380] In one example, the wireless device may determine that the number of one or more path loss reference RSs is equal to or greater than a maximum number (e.g., four or five). The wireless device may determine that the number of one or more path loss reference RSs (e.g., mapped to multiple power control parameter sets) tracked / measured based on receiving an activation command (or after receiving an activation command) is equal to or greater than a maximum number (e.g., four or five). In one example, at least one path loss reference RS may not include a first path loss reference RS with configured uplink grants. In one example, one or more path loss reference RSs may not include a first path loss reference RS with configured uplink grants. In one example, the wireless device may ignore a first path loss reference RS based on determining that the number of one or more path loss reference RSs is equal to or greater than the maximum number. In one example, the wireless device may ignore a first path loss reference RS based on one or more path loss reference RSs that do not include the first path loss reference RS. In one example, the wireless device may ignore a first path loss reference RS based on determining that the number of one or more path loss reference RSs is equal to or greater than the maximum number and that one or more path loss reference RSs do not include the first path loss reference RS.

[0381] In one example, the wireless device may suspend the configured uplink grant based on determining that the number of one or more path loss reference RSs is equal to or greater than a maximum number. In another example, the wireless device may suspend the configured uplink grant based on one or more path loss reference RSs excluding the first path loss reference RS. In yet another example, the wireless device may suspend the configured uplink grant based on determining that the number of one or more path loss reference RSs is equal to or greater than a maximum number and that the one or more path loss reference RSs do not include the first path loss reference RS.

[0382] In one example, suspending the configured uplink license may include not transporting blocks for the configured uplink license.

[0383] In one example, the wireless device may release one or more configuration parameters of the configured uplink license without suspending the configured uplink license. In another example, the wireless device may maintain / uphold one or more configuration parameters of the configured uplink license by suspending the configured uplink license.

[0384] In one example, the number of at least one path loss reference RS and the number of first path loss reference RSs may be greater than a maximum number (e.g., four or five). At least one path loss reference RS may not include the first path loss reference RS. The wireless device may ignore the first path loss reference RS based on the determination that the number of at least one path loss reference RS and the number of first path loss reference RSs is greater than the maximum number. In one example, the number of one or more path loss reference RSs and the number of first path loss reference RSs may be greater than a maximum number (e.g., four or five). One or more path loss reference RSs may not include the first path loss reference RS. The wireless device may ignore the first path loss reference RS based on the determination that the number of one or more path loss reference RSs and the number of first path loss reference RSs is greater than the maximum number. The wireless device may ignore the first path loss reference RS based on the determination that the number of one or more path loss reference RSs and the number of first path loss reference RSs is greater than the maximum number.

[0385] In one example, a wireless device may suspend a configured uplink license based on the determination that the number of one or more path loss reference RSs is greater than the maximum number.

[0386] In one example, the wireless device may suspend the configured uplink grant until it receives one or more second configuration parameters indicating the path loss reference RS used for the configured uplink grant. Multiple path loss reference RSs may be included.

[0387] In one example, a wireless device may suspend the configured uplink grant until it receives a DCI indicating (re)activation of the configured uplink grant. The DCI may include one or more fields indicating (re)activation.

[0388] Figure 25 and Figure 26 This is an exemplary flowchart of power control of an SRS according to one aspect of an embodiment of the present disclosure.

[0389] In one example, a wireless device may receive one or more messages, for instance, from a base station. These messages may include one or more configuration parameters. In one example, these configuration parameters may be used for the cell (or for the cell's uplink BWP).

[0390] In one example, one or more configuration parameters may indicate multiple sets of Sounding Reference Signals (SRS) resources. One or more configuration parameters may indicate multiple path loss reference RSs used for path loss estimation of SRS transmission. In one example, SRS transmission may include SRS transmission via a cell. In one example, SRS transmission may include SRS transmission via a second cell different from the stated cell.

[0391] In one example, one or more configuration parameters may indicate the SRS resource set index of multiple SRS resource sets (e.g., provided by the higher-level parameter SRS-ResourceSetId). In one example, each SRS resource set in the multiple SRS resource sets may be identified by the corresponding SRS resource set index in the SRS resource set index. In one example, the first SRS resource set in the multiple SRS resource sets may be identified by the first SRS resource set index in the SRS resource set index. The second SRS resource set in the multiple SRS resource sets may be identified by the second SRS resource set index in the SRS resource set index.

[0392] In one example, the wireless device may receive an activation command (e.g., MAC CE) that selects / activates / updates / indicates the path loss reference RS for a first SRS resource set among multiple path loss reference RSs. In one example, a cell may include the first SRS resource set. In one example, the cell's (active) uplink BWP may include the first SRS resource set. In one example, the wireless device may receive an activation command for a cell. The activation command can select / activate / update / indicate the cell's path loss reference RS. In one example, the wireless device may receive an activation command for a second cell different from the stated cell. The activation command can select / activate / update / indicate the second cell's path loss reference RS.

[0393] In one example, the activation command may include a field indicating / including a path loss reference RS index. In another example, the activation command may include a field indicating / including a first SRS resource set index for a first SRS resource set.

[0394] In one example, a wireless device may transmit uplink signals / channels (e.g., SRS, PUSCH) via a first SRS resource of a first SRS resource set with transmission power. The wireless device may determine / calculate the transmission power based on a path loss reference RS selected / activated / updated / indicated by an activation command. Determining / calculating the transmission power based on the path loss reference RS includes determining / calculating the transmission power based on measurements of path loss RSs (L1-RSRP, L3-RSRP, higher-level filtered RSRP, etc.) indicated by the path loss reference RS. The path loss reference RS may include an index (e.g., referenceSignal, csi-RS index, ssb-Index) that indicates / identifies the path loss RS.

[0395] In one example, the wireless device can determine a second SRS resource set from among multiple SRS resource sets. For the second SRS resource set, the wireless device can activate / update the path loss reference RS selected / activated / updated / indicated by an activation command. Based on the determined second SRS resource set, the wireless device can activate / update the path loss reference RS used for the second SRS resource set.

[0396] In one example, the cell may include a second SRS resource set. In one example, the (active) uplink BWP of the cell may include a first SRS resource set and a second SRS resource set. In one example, the first SRS resource set index of the first SRS resource set and the second SRS resource set index of the second SRS resource set may be different. The SRS resource set index may include the first SRS resource set index and the second SRS resource set index.

[0397] In one example, a wireless device can transmit a second uplink signal / channel (e.g., SRS, PUSCH) via a second SRS resource set with transmission power. The wireless device can determine / calculate the transmission power of the second uplink signal / channel based on the path loss reference RS in response to activating / updating the path loss reference RS for the second SRS resource set. Determining / calculating the transmission power based on the path loss reference RS includes determining / calculating the transmission power of the second uplink signal / channel based on measurements of the path loss RS (L1-RSRP, L3-RSRP, higher-level filtered RSRP, etc.) indicated by the path loss reference RS.

[0398] In one example, a wireless device may transmit one or more UE capability information to a base station. The one or more UE capability information may indicate a value (“t1r4”) of a supported SRS transport port switch (e.g., supportedSRS-TxPortSwitch). This value may be equal to “t1r4”. In one example, determining a second SRS resource set may be based on one or more UE capability information indicated by the value (“t1r4”). In one example, activating / updating the path loss reference RS for the second SRS resource set may be based on one or more UE capability information indicated by the value (“t1r4”).

[0399] In one example, one or more configuration parameters can indicate the SRS resource set usage of multiple SRS resource sets (e.g., provided by higher-level parameter usage, such as "beamManagement", "codebook", "non-codebook", or "AntennaSwitching"). In one example, each SRS resource set in the multiple SRS resource sets can be identified / configured / indicated by the corresponding SRS resource set usage in the SRS resource set usage. In one example, the first SRS resource set can be identified / configured / indicated by the first SRS resource set usage in the SRS resource set usage. In one example, the second SRS resource set can be identified / configured / indicated by the second SRS resource set usage in the SRS resource set usage.

[0400] In one example, Figure 25 In this context, the purpose of the first SRS resource set and the purpose of the second SRS resource set can be the same (e.g., both are "AntennaSwitching"). In one example, the purpose of the first SRS resource set can be (equal to) "AntennaSwitching". The purpose of the second SRS resource set can be (equal to) "AntennaSwitching". In one example, the second SRS resource set is determined based on the fact that the purpose of the first SRS resource set and the purpose of the second SRS resource set are the same. The second SRS resource set is determined based on the fact that the purpose of the first SRS resource set and the purpose of the second SRS resource set are both "AntennaSwitching".

[0401] In one example, a cell may include a third SRS resource set. In one example, the cell's (active) uplink BWP may include a third SRS resource set. Multiple SRS resource sets may include a third SRS resource set. For a third SRS resource set, the radio device may not activate / update the path loss reference RS selected / activated / updated / indicated by the activation command. If the purpose of the third SRS resource set is not "AntennaSwitching", the radio device may not activate / update the path loss reference RS of the third SRS resource set. The purpose of an SRS resource set may include the purpose of the third SRS resource set. If the purpose of the third SRS resource set is different from the purpose of the first SRS resource set, the radio device may not activate / update the path loss reference RS of the third SRS resource set. In one example, the purpose of the first SRS resource set may be (equal to) "AntennaSwitching". The purpose of the third SRS resource set may be different from "AntennaSwitching" (e.g., it may be equal to "beamManagement", "codebook", "non-codebook").

[0402] In one example, a second cell, different from the stated cell, may include a second SRS resource set. In one example, the (active) uplink BWP of the cell may include a first SRS resource set. The uplink BWP of the second cell may include a second SRS resource set. In one example, the first SRS resource set index of the first SRS resource set and the second SRS resource set index of the second SRS resource set may be the same. The SRS resource set index may include both the first and second SRS resource set indices. One or more configuration parameters may include simultaneous PL-RS update parameters that group the second cell and the stated cell in the same simultaneous PL-RS update group. Based on one or more configuration parameters including the simultaneous PL-RS update parameters, the wireless device may determine the second SRS resource set of the second cell in response to receiving an activation command for the first SRS resource set of the cell.

[0403] In one example, Figure 26In this context, a wireless device can transmit one or more UE capability information to a base station. One or more UE capability information may indicate a value (e.g., “t1r2”, “t2r4”, “t1r4-t2r4”) of a supported SRS transport port switch (e.g., supportedSRS-TxPortSwitch). This value may differ from “t1r4”. In one example, determining a second SRS resource set is based on one or more UE capability information indicating a value different from (“t1r4”). Activating / updating / updating the path loss reference RS for the second SRS resource set, selected / activated / updated / indicated by an activation command, can be based on one or more UE capability information indicating a value different from (“t1r4”).

[0404] In one example, the cell and the second cell can be in the same band (or frequency band).

[0405] In one example, a wireless device may transmit one or more UE capability information to a base station. The one or more UE capability information may indicate a supported SRS transport port switch (e.g., supportedSRS-TxPortSwitch). The value may be equal to "t1r4". In one example, based on one or more UE capability information indicating a value equal to ("t1r4"), the wireless device may not activate / update the path loss reference RS selected / activated / updated / indicated by the activation command for a second SRS resource set in multiple SRS resource sets. In one example, the first SRS resource set index of the first SRS resource set and the second SRS resource set index of the second SRS resource set may be the same. The SRS resource set index may include both the first and second SRS resource set indexes. A second cell may include the second SRS resource set. The cell may include the first SRS resource set. One or more configuration parameters may include simultaneous PL-RS update parameters that group the second cell and the cell in the same simultaneous PL-RS update group. In one example, the purpose of the first SRS resource set and the purpose of the second SRS resource set may be the same.

[0406] In one example, the purpose of the first SRS resource set and the purpose of the second SRS resource set can be the same. In another example, the purpose of the first SRS resource set can be different from "AntennaSwitching" (e.g., "beamManagement", "codebook", "non-codebook"). The purpose of the second SRS resource set can be different from "AntennaSwitching" (e.g., "beamManagement", "codebook", "non-codebook"). The determination of the second SRS resource set can be based on the fact that the purpose of the first SRS resource set and the purpose of the second SRS resource set are different from "AntennaSwitching". The determination of the second SRS resource set is based on the fact that the purpose of the second SRS resource set is different from "AntennaSwitching". The determination of the second SRS resource set is based on the fact that the purpose of the first SRS resource set is different from "AntennaSwitching".

[0407] In one example, the purpose of the first SRS resource set and the purpose of the second SRS resource set can be the same. In one example, the purpose of the first SRS resource set can be "AntennaSwitching". The purpose of the second SRS resource set can be "AntennaSwitching". Based on the purpose of the first SRS resource set and the purpose of the second SRS resource set being "AntennaSwitching", the wireless device may not activate / update the path loss reference RS selected / activated / updated / indicated by the activation command for the second SRS resource set in multiple SRS resource sets. In one example, the first SRS resource set index of the first SRS resource set and the second SRS resource set index of the second SRS resource set can be the same. The SRS resource set index may include the first SRS resource set index and the second SRS resource set index. The second cell may include the second SRS resource set. The cell may include the first SRS resource set. One or more configuration parameters may include simultaneous PL-RS update parameters that group the second cell and the cell in the same simultaneous PL-RS update group.

[0408] In one example, one or more configuration parameters cannot (e.g., via the higher-level parameter pathlossReferenceLinking) indicate a reference cell. When one or more configuration parameters do not indicate a reference cell, a path loss reference RS can be transmitted on / via that cell. When one or more configuration parameters do not indicate a reference cell, the base station can transmit a path loss reference RS on / via that cell. When one or more configuration parameters do not indicate a reference cell, the base station can configure a path loss reference RS for that cell. When one or more configuration parameters do not indicate a reference cell, one or more configuration parameters can indicate a path loss reference RS for that cell. In one example, RS resources for the path loss reference RS can be on the cell.

[0409] In one example, one or more configuration parameters can (e.g., via the higher-layer parameter `pathlossReferenceLinking`) indicate a reference cell for the cell. In one example, the reference cell may be different from the cell. In one example, the reference cell may be the same as the cell. Based on one or more configuration parameters indicating the reference cell, a path loss reference RS can be transmitted on / via the reference cell. Based on one or more configuration parameters indicating the reference cell, the base station can transmit the path loss reference RS on / via the reference cell. Based on one or more configuration parameters indicating the reference cell, the base station can configure the path loss reference RS for the reference cell. Based on one or more configuration parameters indicating the reference cell, the one or more configuration parameters can indicate the path loss reference RS for the reference cell. In one example, the reference cell can be used for path loss estimation for the cell. In one example, the wireless device can measure the path loss reference RS of the reference cell for path loss estimation of the cell. In one example, RS resources for the path loss reference RS can be on the reference cell. The value of the higher-layer parameter `pathlossReferenceLinking` can indicate the reference cell.

[0410] In an example, one or more configuration parameters can (e.g., via the higher-level parameter pathlossReferenceLinking) indicate a second reference cell for the second cell.

[0411] In one example, the reference cell and the second reference cell can be the same, based on one or more configuration parameters including simultaneous PL-RS update parameters that group the second cell and the cell in the same simultaneous PL-RS update group.

[0412] In one example, based on one or more configuration parameters including simultaneous PL-RS update parameters that group the second cell and the cell in the same simultaneous PL-RS update group, one or more configuration parameters can indicate the reference cell of the cell and the second reference cell of the second cell, wherein the reference cell and the second reference cell are the same.

[0413] In one example, the third cell cannot be in the same simultaneous PL-RS update group that includes both the first and second cells. One or more configuration parameters (e.g., via the higher-level parameter pathlossReferenceLinking) can indicate a third reference cell for the third cell. The third reference cell may be the same as or different from the reference cell based on the fact that the same simultaneous PL-RS update group does not include the third cell. Based on the fact that the same simultaneous PL-RS update group does not include the third cell, the third reference cell may be the same as or different from the second reference cell.

[0414] In one example, one or more configuration parameters may not (e.g., via the higher-layer parameter pathlossReferenceLinking) indicate a second reference cell for the second cell. Based on one or more configuration parameters that do not indicate a second reference cell for the second cell, and one or more configuration parameters that include simultaneous PL-RS update parameters that group the second cell and the cell in the same simultaneous PL-RS update group, the wireless device may assume / use / measure the path loss reference RS transmitted from the reference cell of the second cell for path loss estimation of the second cell.

[0415] In one example, one or more configuration parameters may not (e.g., via the higher-layer parameter pathlossReferenceLinking) indicate a third reference cell for the third cell. Based on one or more configuration parameters that do not indicate a third reference cell and the same simultaneous PL-RS update group that does not include the third cell, the radio device can set the third cell as the third reference cell. Based on setting the third cell as the third reference cell, the radio device can assume / use / measure the path loss reference RS transmitted from the third reference cell for path loss estimation of the third cell.

[0416] Figure 27 This is an exemplary flowchart of the configured uplink authorized power control according to one aspect of the embodiments of this disclosure.

[0417] At 2710, the wireless device can determine that the activation command can update the path loss reference signal of the uplink channel. At 2720, in response to the activation command updating the path loss reference signal, the wireless device can determine the transmission power based on the path loss reference signal mapped to the power control parameter set. At 2730, the wireless device can use the transmission power to transmit the configured uplink licensed transport blocks.

[0418] According to an exemplary embodiment, the wireless device may receive one or more messages including configuration parameters. The configuration parameters may include path loss reference signal update parameters that enable the activation command to update the path loss reference signal of the uplink channel.

[0419] According to an exemplary implementation, configuration parameters can indicate a set of power control parameters for a configured uplink grant. For the configured uplink grant, the configuration parameters may include a sounding reference signal (SRS) resource indicator that indicates the set of power control parameters.

Claims

1. A power control method based on a path loss reference signal, the method comprising: A wireless device receives one or more messages including one or more configuration parameters, wherein the one or more configuration parameters include: A probe reference signal (SRS) resource indicator for configured uplink grants, the SRS resource indicator indicating a set of power control parameters; and Path loss reference signal update parameters, which enable the activation command to update the path loss reference signal of the uplink channel; In response to the one or more configuration parameters including the path loss reference signal update parameters, the transmission power of the configured uplink licensed transport block is determined based on the path loss reference signal mapped to the power control parameter set; and The transmission block is transmitted at the aforementioned transmission power.

2. The method of claim 1, further comprising using a spatial domain transmission filter determined based on the SRS resource indicator to transmit the transport block.

3. The method of claim 2, wherein the SRS resource indicator indicates an SRS resource.

4. The method of claim 3, further comprising transmitting SRS via the SRS resource using the spatial domain transmission filter.

5. The method of claim 1, wherein, for the configured uplink grant, the one or more configuration parameters include a path loss reference index indicating a third path loss reference signal.

6. The method of claim 5, further comprising ignoring the third path loss reference signal indicated by the path loss reference index by not determining the transmission power based on the third path loss reference signal.

7. The method of claim 6, wherein the ignoring is based on the path loss reference signal update parameters included in the one or more configuration parameters.

8. The method of claim 7, further comprising: Receive one or more second messages including one or more second configuration parameters, wherein the one or more second configuration parameters are: For the second configured uplink grant, a second path loss reference index is included, indicating the second path loss reference signal; as well as This does not include the path loss reference signal update parameters; In response to the fact that one or more second configuration parameters do not include the path loss reference signal update parameter, the second transmission power of the second transport block of the second configured uplink grant is determined based on the second path loss reference signal; and The second transmission block is transmitted at the second transmission power.

9. The method of claim 8, wherein for the second configured uplink grant, one or more second configuration parameters further include a second SRS resource indicator.

10. The method of claim 9, further comprising using a second spatial domain transmission filter determined based on the second SRS resource indicator to transmit the second transport block.

11. The method of any one of claims 1 to 10, wherein the path loss reference signal update parameter enables the activation command to update the path loss reference signal for uplink transmission via the uplink channel.

12. The method of claim 11, wherein the uplink channel is a Physical Uplink Shared Channel (PUSCH).

13. The method of claim 12, wherein for the uplink transmission via the uplink channel, the one or more configuration parameters indicate: Multiple path loss reference signals, the multiple path loss reference signals including path loss reference signals; and Multiple power control parameter sets, wherein the multiple power control parameter sets include the power control parameter set.

14. The method of claim 13, the method further comprising receiving the activation command that maps at least one of the plurality of path loss reference signals to the plurality of power control parameter sets.

15. The method of claim 14, wherein the at least one path loss reference signal includes the path loss reference signal.

16. The method of claim 15, wherein the activation command maps the path loss reference signal to the power control parameter set.

17. The method of claim 14, wherein the mapping between the at least one path loss reference signal and the plurality of power control parameter sets is at least one of the following: One-to-one mapping; One-to-many mapping; and Many-to-one mapping.

18. The method of claim 13, wherein one or more configuration parameters map the path loss reference signal to the power control parameter set.

19. The method of claim 14, wherein the number of the plurality of path loss reference signals is greater than the maximum number of path loss reference signals tracked by the wireless device.

20. The method of claim 19, wherein the number of the at least one path loss reference signal is equal to or less than the maximum number of path loss reference signals tracked by the wireless device.

21. The method of claim 20, wherein the maximum number is fixed.

22. The method of claim 20, wherein the maximum number is based on the capability of the wireless device.

23. The method of claim 22, the method further comprising transmitting capability information indicating the maximum number of user equipment (UE) devices.

24. The method of claim 1, wherein determining the transmission power based on the path loss reference signal includes determining the transmission power based on the measurement quality of the path loss reference signal.

25. The method of claim 24, wherein the measured quality is at least one of the following: Layer 1 Reference Signal Received Power (L1-RSRP); or Layer 3 Reference Signal Received Power (L3-RSRP).

26. The method of claim 1, wherein the configured uplink grant is a type 1 configured uplink grant.

27. The method of claim 26, the method further comprising activating the uplink authorization configured for type 1 based on receiving the one or more configuration parameters.

28. The method of claim 1, wherein the power control parameter set is SRI-PUSCH-PowerControl.

29. A power control method based on a path loss reference signal, the method comprising: The wireless device receives one or more messages including one or more configuration parameters, wherein the one or more configuration parameters include a probe reference signal (SRS) resource indicator for a set of power control parameters indicating the configured uplink grant; In response to one or more configuration parameters including path loss reference signal update parameters, the transmission power of the configured uplink licensed transport block is determined based on the path loss reference signal mapped to the power control parameter set, wherein the path loss reference signal update parameters enable the activation command to update the path loss reference signal of the uplink channel. as well as The transmission block is transmitted at the aforementioned transmission power.

30. A power control method based on a path loss reference signal, the method comprising: The wireless device receives one or more messages including one or more configuration parameters, the one or more configuration parameters indicating a set of power control parameters for the configured uplink license; In response to one or more configuration parameters including path loss reference signal update parameters, the transmission power of the configured uplink licensed transport block is determined based on the path loss reference signal mapped to the power control parameter set, wherein the path loss reference signal update parameters enable the activation command to update the path loss reference signal of the uplink channel. as well as The transmission block is transmitted at the aforementioned transmission power.

31. A power control method based on a path loss reference signal, the method comprising: The wireless device receives one or more messages including configuration parameters, wherein the configuration parameters include a probe reference signal (SRS) resource indicator for a set of power control parameters indicating the configured uplink grant; and The configured uplink licensed transport block is transmitted at transmission power, wherein the transmission power is determined based on the path loss reference signal mapped to the power control parameter set, in response to the configuration parameters including path loss reference signal update parameters that enable the activation command to update the path loss reference signal of the uplink channel.

32. A power control method based on a path loss reference signal, the method comprising: The wireless device receives one or more Radio Source Control (RRC) messages including one or more configuration parameters, wherein the one or more configuration parameters include path loss reference signal update parameters that enable the activation command to update the path loss reference signal of the Physical Uplink Shared Channel (PUSCH). In response to the one or more configuration parameters including the path loss reference signal update parameters, the transmission power of the transport block based on the uplink grant is determined based on the path loss reference signal mapped to the set of probe reference signal (SRI) PUSCH power control parameters with an index value of zero. as well as The transmission block is transmitted at the aforementioned transmission power.

33. A power control method based on a path loss reference signal, the method comprising: A wireless device receives one or more messages including one or more configuration parameters, wherein the one or more configuration parameters are: Indicates multiple path loss reference signals used for the uplink channel; Indicates multiple power control parameter sets; and Includes path loss reference signal update parameters, which enable the activation command to update one or more path loss reference signals used for uplink transmission via the uplink channel. Receive an activation command that maps at least one of the plurality of path loss reference signals to the plurality of power control parameter sets; In response to the one or more configuration parameters including the path loss reference signal update parameter, the transmission power of the configured uplink licensed transport block is determined based on the path loss reference signal in the at least one path loss reference signal; and The transmission block is transmitted at the aforementioned transmission power.

34. The method of claim 33, wherein the uplink is a Physical Uplink Shared Channel (PUSCH).

35. The method of any one of claims 33 to 34, wherein determining the transmission power based on the path loss reference signal includes determining the transmission power based on the measurement quality of the path loss reference signal.

36. The method of claim 35, wherein the measured quality is at least one of the following: Layer 1 Reference Signal Received Power (L1-RSRP); or Layer 3 Reference Signal Received Power (L3-RSRP).

37. The method of claim 33, wherein the number of the plurality of path loss reference signals is greater than the maximum number of path loss reference signals tracked by the wireless device.

38. The method of claim 37, wherein the number of the at least one path loss reference signal is equal to or less than the maximum number of path loss reference signals tracked by the wireless device.

39. The method of claim 38, wherein the maximum number is fixed.

40. The method of claim 38, wherein the maximum number is based on the capability of the wireless device.

41. The method of claim 40, the method further comprising transmitting capability information indicating the maximum number of user equipment (UE) devices.

42. The method of claim 33, wherein the configured uplink license is a type 1 configured uplink license.

43. The method of claim 42, the method further comprising activating the uplink authorization configured for type 1 based on receiving the one or more configuration parameters.

44. The method of claim 33, wherein the mapping between the at least one path loss reference signal and the plurality of power control parameter sets is at least one of the following: One-to-one mapping; One-to-many mapping; and Many-to-one mapping.

45. The method of claim 33, the method further comprising determining a power control parameter set from the plurality of power control parameter sets, wherein the power control parameter set is mapped to the path loss reference signal.

46. ​​The method of claim 45, wherein the activation command maps the power control parameter set to the path loss reference signal.

47. The method of claim 46, wherein the power control parameter set is identified by the lowest or highest power control parameter set index among the power control parameter set indices of the plurality of power control parameter sets.

48. The method of claim 47, wherein the one or more configuration parameters indicate the power control parameter set index of the plurality of power control parameter sets.

49. The method of claim 46, wherein the power control parameter set is identified by a power control parameter set index equal to a value.

50. The method of claim 49, wherein the one or more configuration parameters indicate the power control parameter set index.

51. The method of claim 49, wherein the value is equal to zero.

52. The method of claim 33, wherein the path loss reference signal is identified by the lowest or highest path loss reference signal index among at least one path loss reference signal index of the at least one path loss reference signal.

53. The method of claim 52, wherein the one or more configuration parameters indicate the at least one path loss reference signal index of the at least one path loss reference signal.

54. A power control method based on a path loss reference signal, the method comprising: A wireless device receives one or more messages including one or more configuration parameters, wherein the one or more configuration parameters are: Indicates multiple path loss reference signals used for the uplink channel; For the configured uplink grant, it includes a first path loss reference index indicating a first path loss reference signal among the plurality of path loss reference signals; and This includes path loss reference signal update parameters that enable the activation command to update the path loss reference signal of the uplink channel; The first transmission power of the first transport block of the configured uplink license is determined based on the first path loss reference signal. The first transmission block is transmitted at the first transmission power; Receive the activation command, the activation command including: The first field indicates the configured uplink authorization; and The second field includes a second path loss reference index that indicates a second path loss reference signal among the plurality of path loss reference signals; In response to receiving the activation command, the second transmission power of the configured uplink licensed second transport block is determined based on the second path loss reference signal; and The second transmission block is transmitted at the second transmission power.

55. The method of claim 54, wherein the first field includes a configured uplink license index that identifies the configured uplink license.

56. The method of claim 55, wherein one or more configuration parameters indicate the configured uplink license index of the configured uplink license.

57. The method of any one of claims 54 to 56, wherein the configured uplink grant is a type 1 configured uplink grant.

58. A power control method based on a path loss reference signal, the method comprising: The wireless device receives one or more messages including one or more configuration parameters, wherein the one or more configuration parameters include path loss reference signal update parameters that enable the activation command to update the path loss reference signal of the uplink channel; Receive the activation command, the activation command indicating: One or more configured uplink authorizations; and Path loss reference signal; In response to receiving the activation command, determine one or more transmission powers of one or more transport blocks of one or more configured uplink grants based on the path loss reference signal; and The one or more transport blocks are transmitted at the one or more transport powers.

59. A power control method based on a path loss reference signal, the method comprising: Received by wireless device: Reference signal resource indicator for periodic uplink resources; and Path loss reference signal update parameters, which enable the activation command to update the path loss reference signal used for uplink transmission via the uplink channel. In response to receiving the path loss reference signal update parameters, the transmission power is determined based on the path loss reference signal mapped to the power control parameter set, wherein the reference signal resource indicator indicates the power control parameter set; and The uplink signal of the periodic uplink resource is transmitted using the transmission power.

60. The method of claim 59, wherein the periodic uplink resource is a configured uplink grant.

61. The method of any one of claims 59 to 60, wherein the reference signal resource indicator is an SRS resource indicator.

62. The method of claim 59, wherein the uplink signal is a transport block.

63. A wireless device, the wireless device comprising: One or more processors; and A memory that stores instructions that, when executed by the one or more processors, cause the wireless device to perform the method as described in any one of claims 1 to 62.

64. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform the method as described in any one of claims 1 to 62.

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