Power saving and cell sleep operation

Abstract

To provide a method and a base station for performing dormancy management of a secondary cell (SCell).SOLUTION: A method by a wireless device includes receiving one or more indications including a wake-up indication indicating downlink control channel monitoring during a discontinuous reception (DRX) cycle's DRX on duration and a dormant indication indicating switching to a dormant bandwidth portion of a cell, transitioning the cell to a dormant state including switching to a dormant BWP of the cell on the basis of the cell dormant indication, and ceasing monitoring of the cell's downlink control channel while keeping the cell awake during the DRX on duration on the basis of the dormant indication and the wake-up indication, and transmitting a channel state information report for the dormant bandwidth portion.SELECTED DRAWING: Figure 39

Description

[Background technology]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. Provisional Application No. 62 / 908,487, filed September 30, 2019. The benefit of which is claimed and is incorporated herein by reference in its entirety. Summary of the Invention [Means for solving the problem]

[0002] In this disclosure, various embodiments are presented that illustrate how the disclosed technology may be implemented and and / or as examples of environments and scenarios in which the disclosed technology may be practiced. Those skilled in the relevant art will appreciate that the present invention may be practiced in various forms and details without departing from the scope of the present invention. It will be clear that various modifications of the above can be made. In fact, after reading the specification, Methods of implementing alternative embodiments will be apparent to those skilled in the relevant art. The embodiments should not be limited by any of the exemplary embodiments. The present invention will now be described with reference to the accompanying drawings. and / or elements may be combined to create further embodiments within the scope of the present disclosure. The diagrams highlighting features and advantages are presented for illustrative purposes only. The tool is sufficiently flexible and configurable that it can be used in ways other than those shown. For example, the actions listed in any flowchart may be implemented in various embodiments. may be rearranged in the , or may be used only as an option. [Brief description of the drawings]

[0003] Some examples of various embodiments of the present disclosure are described herein with reference to the drawings, in which: It will be described.

[0004] [Figure 1] 1A and 1B show an example of a mobile communication network in which embodiments of the present disclosure may be implemented.

[0005] [Diagram 2] 2A and 2B show the new radio (NR) user plane and control plane protocol stacks, respectively.

[0006] [Diagram 3] FIG. 3 shows examples of services provided between protocol layers of the NR user plane protocol stack of FIG. 2A.

[0007] [Figure 4A] FIG. 4A shows an example downlink data flow through the NR user plane protocol stack of FIG. 2A.

[0008] [Figure 4B] FIG. 4B shows an example format of a MAC subheader in a MAC PDU.

[0009] [Diagram 5] 5A and 5B show the mapping between downlink and uplink logical, transport and physical channels, respectively.

[0010] [Figure 6] FIG. 6 is an exemplary diagram illustrating RRC state transitions of a UE.

[0011] [Figure 7] FIG. 7 shows an example of the structure of an NR frame in which OFDM symbols are grouped.

[0012] [Figure 8] FIG. 8 shows an example of a slot configuration in the time and frequency domain of an NR carrier.

[0013] [Figure 9] FIG. 9 shows an example of bandwidth adaptation using three configured BWPs for an NR carrier.

[0014] [Figure 10A] FIG. 10A shows a three carrier aggregation configuration having two component carriers.

[0015] [Figure 10B] FIG. 10B shows an example of how aggregation cells can be configured into one or more PUCCH groups.

[0016] [Figure 11A] FIG. 11A shows an example of an SS / PBCH block structure and location.

[0017] [Figure 11B] FIG. 11B shows an example of CSI-RS mapped to the time and frequency domain.

[0018] [Figure 12] 12A and 12B show examples of three downlink and uplink beam management procedures, respectively.

[0019] [Figure 13] 13A, 13B, and 13C show a four-step contention-based random access procedure, a two-step contention-free random access procedure, and an alternative two-step random access procedure, respectively.

[0020] [Figure 14A] FIG. 14A shows an example of a CORESET configuration for bandwidth portions.

[0021] [Figure 14B]FIG. 14B shows an example of CCE to REG mapping for DCI transmission on CORESET and PDCCH processing.

[0022] [Figure 15] FIG. 15 illustrates an embodiment of a wireless device communicating with a base station.

[0023] [Figure 16] 16A, 16B, 16C, and 16D show example structures for uplink and downlink transmissions.

[0024] [Figure 17] 17A, 17B and 17C show examples of MAC subheaders.

[0025] [Figure 18A] FIG. 18A shows an example of a DL MAC PDU.

[0026] [Figure 18B] FIG. 18B shows an example of a UL MAC PDU.

[0027] [Figure 19] FIG. 19 shows an example of multiple LCIDs for the downlink.

[0028] [Figure 20] FIG. 20 shows an example of multiple LCIDs for the uplink.

[0029] [Figure 21] 21A and 21B show an example of a SCell activation / deactivation MAC CE.

[0030] [Figure 22] 22A, 22B, and 22C show an example of a SCell hibernation MAC CE.

[0031] [Figure 23]FIG. 23 illustrates BWP management according to an aspect of an exemplary embodiment of the present disclosure.

[0032] [Figure 24] FIG. 24 illustrates a DRX configuration according to an aspect of an exemplary embodiment of the present disclosure.

[0033] [Diagram 25] FIG. 25 illustrates a managed DRX timer according to an aspect of an exemplary embodiment of the present disclosure.

[0034] [Figure 26] 26A and 26B illustrate a power saving mechanism according to aspects of an exemplary embodiment of the present disclosure.

[0035] [Figure 27] FIG. 27 illustrates a power saving mechanism according to an aspect of an exemplary embodiment of the present disclosure.

[0036] [Figure 28] FIG. 28 illustrates beam failure recovery on a SCell according to an aspect of an exemplary embodiment of the present disclosure.

[0037] [Figure 29] FIG. 29 illustrates beam failure recovery on a SCell according to an aspect of an exemplary embodiment of the present disclosure.

[0038] [Diagram 30] FIG. 30 is a flow chart of beam failure recovery on a SCell according to aspects of an exemplary embodiment of the present disclosure.

[0039] [Diagram 31] FIG. 31 illustrates beam failure recovery on a SCell according to an aspect of an exemplary embodiment of the present disclosure.

[0040] [Diagram 32] FIG. 32 illustrates beam failure recovery on a SCell according to an aspect of an exemplary embodiment of the present disclosure.

[0041] [Diagram 33] FIG. 33 illustrates an example embodiment according to one aspect of an exemplary embodiment of the present disclosure.

[0042] [Diagram 34] FIG. 34 illustrates wake-up operation and SCell dormancy management according to an aspect of the exemplary embodiment of the present disclosure.

[0043] [Diagram 35] FIG. 35 is a flowchart of a wake-up operation and SCell dormancy management according to an aspect of the exemplary embodiment of the present disclosure.

[0044] [Diagram 36] FIG. 36 illustrates wake-up operation and SCell dormancy management according to an aspect of an exemplary embodiment of the present disclosure.

[0045] [Figure 37] FIG. 37 illustrates wake-up operation and SCell dormancy management according to an aspect of an exemplary embodiment of the present disclosure.

[0046] [Figure 38] FIG. 38 is a flow diagram of wake-up operation and SCell dormancy management according to an aspect of an exemplary embodiment of the present disclosure.

[0047] [Figure 39] FIG. 39 is a flow diagram of wake-up operation and SCell dormancy management according to aspects of an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0048] The embodiments may be configured to operate as desired. The disclosed mechanisms are, for example: For example, wireless devices, base stations, wireless environments, networks, or combinations of the above The following criteria may be satisfied: Network node configuration, traffic load, initial system configuration, packet size, traffic The method may be based at least in part on one or more of the Fickian properties, combinations of the above, etc. When several criteria are met, various exemplary embodiments can be applied. It is possible to implement exemplary embodiments that selectively implement the disclosed protocols. It is possible.

[0049] A base station may communicate with a mix of wireless devices. A base station may support multiple technologies and / or multiple releases of the same technology. A wireless device may be connected to several The present disclosure refers to a base station that communicates with multiple wireless devices. In this case, the disclosure may refer to a subset of all wireless devices within a coverage area. The present disclosure can be applied to, for example, a given L, including a given capability, in a given sector of a base station. Reference may be made to multiple wireless devices of TE or 5G release. The plurality of wireless devices may be a plurality of selected wireless devices, and / or the disclosed method. Refers to a subset of all wireless devices within a coverage area that perform in accordance with It is possible to provide multiple base stations or multiple antennas in a coverage area that cannot comply with the disclosed method. For example, the wireless devices or base stations may be LTE or will run on an older release of 5G technology.

[0050] As used herein, "a" and "an" and similar terms refer to "at least one" and "one" Similarly, any term ending in the suffix "(s)" is interpreted as "at least "at least one" and "one or more." The term "may" is to be interpreted as "for example, may be." In other words, the term "m "ay" is one example of the multiple appropriate possibilities for the phrase following the term "may" and may be used in various This indicates that it may or may not be used by one or more of the embodiments. As used in the specification, the terms "comprises" and "consist of" "items of" lists one or more components of the described element. The word "comprises" is interchangeable with "includes". does not exclude unrecited elements that are included in the elements listed in the "consists of" refers to the completeness of one or more components of the element being described. As used herein, the term "based on" includes, for example, "based only on This should be interpreted as "based, at least in part, on" rather than "based on." As used herein, the term "and / or" refers to any or all of the listed elements. For example, "A, B, and / or C" means A, B, C, A, and It may represent A and B, A and C, B and C, or A, B, and C.

[0051] If A and B are sets and every element of A is also an element of B, then A is a subset of B. In this specification, only non-empty sets and subsets are considered. For example, The possible subsets of B = {cell1, cell2} are {cell1}, {cell2}, and {cell 1, cell 2}. "Based on" (or equivalently "based at least on") The phrase "based on" may refer to one or more of the various embodiments. This is one example of many suitable possibilities that may or may not be used. The phrase "in response to" (or equivalently "at least in response to") The phrase "in response to" may be used in one or more of the various embodiments. This is one embodiment of many possible preferred embodiments that may or may not be used. The phrase "in accordance with" (or equivalently "at least in accordance with") indicates The phrase following the phrase "depending on" may be used in one or more of the various embodiments. This is an example of one of many possible preferred embodiments that may or may not be used. The phrase "adopt / use" (or equivalently "at least adopt / use") is used interchangeably with the phrase " The phrase following "adopt / use" may be used in one or more of the various embodiments. 13 is shown to be one example of many suitable possibilities that may not be applicable.

[0052] The term "configured" refers to the act of installing an apparatus, regardless of whether the apparatus is in an operational or non-operational state. "Configured" may refer to the capacity of a device to be in an operational or non-operational state. This document refers to specific settings on a device, whether present or not, that affect the operating characteristics of the device. In other words, hardware, software, firmware, registers, memory, The memory value, etc., is used to determine whether the device is in an operational or non-operational state in order for the device to provide certain characteristics. It can be "configured" in a device whether it is in an operational state or not. "Control messages generated" and other terms refer to the state of the device whether it is in an operational or non-operational state. Control messages can be used to configure certain characteristics of a device, and represents parameters that can be used to implement specific actions on the device. It can mean to have.

[0053] In this disclosure, parameters (or equivalently, fields, or information elements: IEs) An information object may contain one or more information objects. It can contain one or more other objects. For example, the parameter (IE)N contains parameter (IE)M, and parameter (IE)M contains parameter (IE)K. If parameter (IE) K contains parameter (information element) J, then, for example, N is K includes N and N includes J. In an exemplary embodiment, one or more messages may be multiplexed. When it contains multiple parameters, it means that one of the parameters or at least one of the messages, but not one or more of the messages This means that the information does not necessarily have to be included in every page.

[0054] Furthermore, many of the features presented above can be clarified by the use of "may" or by the use of parentheses. For the sake of brevity and readability, this disclosure is Specify any and all changes that can be obtained by selecting from a set of optional features This disclosure should not be construed as expressly disclosing all such modifications. For example, a system described as having three optional features may one of the three possible features, any two of the three features, or It can be embodied by three of the three features.

[0055] Many of the elements described in the disclosed embodiments may be implemented as modules. In a module, it performs a defined function and provides a defined interface to other elements. The modules described in this disclosure are defined as hardware, Software, firmware, wetware (e.g., bio The present invention may be implemented in a variety of ways, including hardware with a variety of optical components, or a combination of both. They can be behaviorally equivalent. For example, a module can be a part of a hardware machine ( C, C++, Fortran, Java, Basic, Matlab (trademark), etc.) or Simulink, Stateflow, GNU Octave, or a computer configured to run LabVIEW MathScript The implementation may be a software routine written in a programming language. Physical hardware incorporating programmable analog, digital, and / or quantum hardware It may also be possible to implement a module using programmable hardware. Examples of software include computers, microcontrollers, microprocessors, Application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) , Complex Programmable Logic Devices (CPLDs). The controller, microcontroller, and microprocessor are assemblies, C, ++. FPGAs, ASICs, and CPLDs are often In this case, it is necessary to configure the connections between the internal hardware modules of the programmable device. Hardware description language such as VHSIC Hardware Description Language (VHDL) or Verilog to create It is programmed using a hardware description language (HDL) to achieve the result of a functional module. To achieve this, the above techniques are often used in combination.

[0056] FIG. 1A illustrates an example of a mobile communication network 100 in which embodiments of the present disclosure may be implemented. The mobile communication network 100 may be implemented, for example, by a network operator. As shown in FIG. 1A, The mobile communication network 100 includes a core network (CN) 102, a radio access network (RAN) 103, and a The system includes a RAN network 104, and a wireless device 106.

[0057] The CN 102 transmits to the wireless device 106 a public DN (e.g., the Internet), One or more data DNs, such as private DNs and / or intra-operator DNs It can provide an interface to the DN. The CN 102 then performs end-to-end authentication between the wireless device 106 and one or more DNs. The wireless device 106 may set up a connection to the host, authenticate the wireless device 106, and provide charging functionality.

[0058] The RAN 104 communicates with the CN 102 via wireless communication over the air interface. As part of the wireless communications, the RAN 104 may be connected to a It may provide radio resource management and retransmission protocols over the air interface. The direction of communication from the AN 104 to the wireless device 106 is known as the downlink, and The communication direction from the wireless device 106 to the RAN 104 on the interface is called the uplink Downlink transmission is performed using frequency division duplex (FDD), time division duplex (TDD), or both. TDD), and / or some combination of the two duplex technologies. It can be separated from the link transmission.

[0059] The term wireless device is used throughout this disclosure to refer to any device for which wireless communication is required or available. Used to refer to and include any mobile or fixed (non-portable) device For example, the wireless device may be a phone, a smartphone, a tablet, a computer - Laptops, sensors, meters, wearable devices, Internet of Things (IoT) devices, vehicular roadside units (RSUs), relay nodes, vehicles, and / or It may be any combination thereof. The term wireless device refers to a user equipment (UE). ), User Terminal (UT), Access Terminal (AT), Mobile Station, Handset, Other terms include wireless transmit / receive unit (WTRU) and / or wireless communication device do.

[0060] The RAN 104 may include one or more base stations (not shown). Node B (associated with UMTS and / or 3G standards), Evolved Node B (eNB, related to E-UTRA and / or 4G standards), Remote Radio Head (RRH), A baseband processing unit coupled to one or more remote radio heads, a cover of the donor node Repeater or relay nodes used to extend the bridge area, next generation evolution Node B (ng-eNB), Generation Node B (gNB, NR and / or related to 5G standards ), access points (APs, e.g., related to WiFi or other suitable wireless communication standards (including, but not limited to, any combination thereof) The base station may include at least one gNB central unit. (gNB-CU) and at least one gNB distributed unit (gNB-DU). do.

[0061] The RAN 104 includes base stations that communicate with the wireless devices 106 over the air interface. The system may include one or more sets of antennas for receiving signals. For example, one or more The base station has three antenna sets to control three cells (or sectors), respectively. The size of a cell may include the number of transmissions that a receiver (e.g., a base station receiver) can operate in the cell. The range at which a transmission can be successfully received from a receiver (e.g., a wireless device transmitter) is determined. Together, the base station cells may span a wide geographic area to support wireless device mobility. The wireless LAN may provide wireless coverage to the wireless device 106 over a target area.

[0062] In addition to the three sector site, other implementations of the base station are possible. For example, RAN10 4. One or more base stations may be sectorized having more or less than three sectors. One or more base stations in the RAN 104 may be implemented as access points. The baseband processing unit is coupled to multiple remote radio heads (RRHs) as a Repeated transfers used to extend the coverage area of ​​the donor node and / or The RRH may be implemented as a baseband processing unit or a relay node. The base station may be part of a centralized or Cloud RAN architecture and The baseband processing units are either centralized in a pool of baseband processing units or virtualized. The repeater node amplifies and amplifies the radio signal received from the donor node. Relay nodes have the same / similar functions as repeater nodes. However, the present invention may be implemented by decoding the wireless signal received from the donor node, amplifying the wireless signal, and Noise may be removed before rebroadcast.

[0063] The RAN 104 is a multi-hop network with similar antenna patterns and similar high-level transmit power. The RAN 104 may be deployed as a homogenous network of single cell base stations. In heterogeneous networks, small cell base stations can be used to provide , the relatively large coverage area provided by macrocell base stations and overlapping coverage areas. It can provide small coverage areas, such as suburban areas. The rear is located in areas with high data traffic (or so-called hotspots) or Cross-cell coverage can be provided to areas where coverage is weak. Examples of small cell base stations include The order of decreasing coverage area is microcell base station, picocell base station, and femtocell base station. This may be a cell base station or a home base station.

[0064] The Third Generation Partnership Project (3GPP) is Proposes global standardization of specifications for mobile communication networks similar to the communication network 100. To date, 3GPP is a unified, the third generation (3G) network known as the Universal Mobile Telecommunications System (UMTS); Fourth Generation (4G) networks, known as Long Term Evolution (LTE), and the fifth-generation (5G) network, known as the 5G System (5GS). The present disclosure provides a next-generation mobile network specification. The RAN of the 3GPP (registered trademark) 5G network, called NG-RAN, The embodiments are described with reference to the RAN 104 of FIG. RAN of the current network, and future networks that have not yet been specified (e.g., 3GPP Applicable to RAN of other mobile communication networks such as 6G networks NG-RAN is a 5G radio access technology known as New Radio (NR). Implementing 4G wireless access technology or non-3GPP wireless access technology It may be provided to implement other radio access technologies.

[0065] FIG. 1B illustrates another example mobile communication network 1 in which embodiments of the present disclosure may be implemented. 50. The mobile communication network 150 may be, for example, As shown in FIG. 1B, the mobile communication network 15 may be a PLMN implemented by 0 is the 5G core network (5G-CN) 152, NG-RAN 154, and UE 1 These components include UE 156A and UE 156B (collectively UE 156). Implement and operate in the same or similar manner as the corresponding components described with respect to can be done.

[0066] The 5G-CN 152 transmits to the UE 156 a public DN (e.g., the Internet), Access to one or more DNs, such as private DNs and / or operator DNs As part of its interface functions, 5G-CN152 provides Setting up an end-to-end connection between the UE 156 and one or more DNs; The UE 156 may be authenticated and may provide charging functionality. Compared with CN, 5G-CN152 is based on a service-based architecture. This is because the architecture of the nodes that make up 5G-CN152 is different from that of other networks. is defined as a network function that provides services through an interface to network functions. This means that the network functions of 5G-CN152 can be defined as either dedicated or shared. As a hardware network element, it operates on dedicated or shared hardware As a software instance or platform (e.g., cloud-based Implemented in several ways as a virtualization function instantiated on the It can be done.

[0067] As shown in Figure 1B, 5G-CN152 is a single As shown as component AMF / UPF158, the Access and Mobility Management Function ( UPF158 includes the User Plane Function (AMF) 158A and the User Plane Function (UPF) 158B. B may act as a gateway between the NG-RAN 154 and one or more DNs. The UPF158B is a packet routing and forwarding, packet inspection and user Enforce plain policy rules, report traffic usage, and send traffic to one or more DNs Uplink classification to support traffic flow routing, and user plane Quality of Service (QoS) processing for , uplink / downlink rate enforcement, and uplink traffic validation), Features such as downlink packet buffering and downlink data notification triggers The UPF158B can perform intra / inter-Radio Access Technology (RAT) mobile An anchor point for a security, an external protocol (or (or Packet) Data Unit (PDU), Session Point, and / or Branch Point The UE 156 may function as a UE 156 UE 156 UE 156 UE 156 A PDU session is a logical connection between a UE and a DN. It can be configured as follows.

[0068] AMF158A is the termination of non-access stratum (NAS) signaling, NAS signaling Security, Access Stratum (AS) Security Control, 3GPP (registered trademark) Access Network Inter-CN Node Signaling for Inter-Network Mobility, Idle Mode UE Reach possibility (e.g., control and execution of paging retransmissions), registration area management, intra-system and Access control, including inter-system mobility support, access authentication, and roaming permission checks Access permissions, mobility management controls (subscriptions and policies), network slices Support for session management and / or selection of Session Management Functions (SMFs) The NAS may refer to a function that operates between the CN and the UE, and the AS refers to a function that operates between the UE and the RA. It may refer to a function that operates between N.

[0069] 5G-CN152 may include one or more 5G-CN152s that are not shown in FIG. 1B for clarity. For example, the 5G-CN152 may include a session management function. Function (SMF), NR Repository Function (NRF), Policy Control Function (PCF), Network Network Exposure Function (NEF), Unified Data Management (UDM), Application Function (AF), and / or one or more of an Authentication Server Function (AUSF).

[0070] The NG-RAN154 transmits the 5G-CN152 over the air interface via wireless communication. The NG-RAN 154 may connect to the UE 156 via the gNB 160A and the gNB 16 One or more gNBs (collectively gNBs 160) illustrated as gNB 0B; and / or one or more of the 2-aminobutyric acid esters shown as ng-eNB162A and ng-eNB162B ng-eNBs (collectively ng-eNBs162). -eNBs 162 may be more generally referred to as base stations. gNB 160 and ng-e The NB162 is connected to one of the antennas for communicating with the UE156 over the air interface. For example, one or more of gNB160 and / or n One or more of the g-eNBs 162 each control three cells (or sectors). The gNBs160 and ng- The eNBs162 cells span a wide geographic area to support UE mobility. The UE 156 may then be provided with wireless coverage.

[0071] As shown in Figure 1B, gNB160 and / or ng-eNB162 are It may be connected to 5G-CN152 by the Xn interface. The NG and Xn interfaces can be used to connect to other base stations. The underlying transport network, such as the IP transport network The gNB may be established using a direct physical connection and / or an indirect connection. s160 and / or ng-eNBs162 communicate with UE1 via the Uu interface. 56. For example, as shown in FIG. 1B, the gNB 160A may be connected to the Uu interface. The NG, Xn, and Uu interfaces A protocol is associated with a protocol stack. The protocol stack uses the network shown in Figure 1B to exchange data and signaling messages. It may be used by network elements and has two processes: user plane and control plane. The user plane may process data of interest to users. The control plane processes signaling messages of interest to network elements. It makes sense.

[0072] The gNB 160 and / or the ng-eNB 162 may include one or more NG interfaces. Depending on the interface, one or more AM of 5G-CN152, such as AMF / UPF158, For example, the gNB160A may be connected to the NG user plane (NG user plane (NG user plane) It is connected to the UPF158B of the AMF / UPF158 by the GU) interface. The NG-U interface is a user-preferential The gNB160A may provide a supply of NG control PDUs (e.g., non-guaranteed supply). It can be connected to the AMF158A using the NG-C interface. The interfaces include, for example, NG interface management, UE context management, UE Mobility management, NAS message forwarding, paging, PDU session management and configuration The system may provide for forwarding of configuration and / or sending of warning messages.

[0073] The gNB 160 transmits NR user play to the UE 156 on the Uu interface. For example, the gNB 160A may provide a first On the Uu interface associated with the protocol stack, towards the UE 156A The ng-eNB may provide NR user plane and control plane protocol termination. The s162 transmits the Evolved UMT E-UTRA User Plane and Control Plane Protocol Termination E-UTRA refers to 3GPP 4G radio access technology. For example, the ng-eNB162B supports Uu interfaces associated with the second protocol stack. On the interface, E-UTRA user plane and control It may provide plain protocol termination.

[0074] The 5G-CN152 will be configured to handle NR and 4G radio access. Those skilled in the art will understand that NR provides the 4G core network with a “non-standalone operation” It will be appreciated that it may be possible to connect in a mode known as "non-S In standalone operation, the 4G core network is used to provide control plane functions (e.g. , initial access, mobility, and paging) Although only one AMF / UPF158 is shown in Figure 1B, one gNB or The ng-eNB is connected to multiple AMF / UPF nodes to provide redundancy, and / or Or shares may be loaded across multiple AMF / UPF nodes.

[0075] As discussed, in FIG. 1B, interfaces between network elements (e.g., u, Xn, and NG interfaces) exchange data and signaling messages It may also be associated with the protocol stack that a network element uses to communicate with the network. The protocol stack consists of two planes: the user plane and the control plane. The user plane may process data of interest to the user. The control plane processes signaling messages of interest to network elements. possible.

[0076] 2A and 2B respectively show the Uu interface between the UE 210 and the gNB 220. This paper presents an example of the NR user plane and NR control plane protocol stacks for a 10Gb / s ... The protocol stacks shown in Figures 2A and 2B may be implemented, for example, in the UE shown in Figure 1B. The same as that used for the Uu interface between the 156A and gNB160A or It may be similar.

[0077] FIG. 2A illustrates an NR user platform including five layers implemented in the UE 210 and the gNB 220. The lane protocol stack is shown in Figure 1. At the bottom of the protocol stack are the physical layers (PHYs) 2 11 and 221 provide transport services to the upper layers of the protocol stack. PHY 211 may correspond to layer 1 of the Open Systems Interconnection (OSI) model. The next four protocols above 221 are the Media Access Control Layer (MAC) 212 and 222, Radio Link Control Layer (RLC) 213 and 223, Packet Data Convergence Process Protocol layers (PDCP) 214 and 224, and service data application Protocol layers (SDAP) 215 and 225. Together, these four protocols The col may constitute layer 2 or the data link layer of the OSI model.

[0078] Figure 3 shows the services provided between the protocol layers of the NR user plane protocol stack. Starting from the top of FIG. 2A and FIG. 3, SDAP 215 and 2 25 may perform QoS flow processing. The UE 210 may implement a logic between the UE 210 and the DN. A PDU session may receive services via a PDU session, which may be a connection. , may have one or more QoS flows. depends on the QoS requirements (e.g., in terms of delay, data rate, and / or error rate). Based on the QoS information, the IP packet is mapped to one or more QoS flows of the PDU session. The SDAPs 215 and 225 may communicate with one or more QoS flows and one or more Mapping / de-mapping between multiple data radio bearers can be performed. Mapping / de-mapping between data radio bearers and data radio bearers is done by the gNB220 using SDAP The SDAP 215 at the UE 210 may be determined by the gNB 220. QoS flows and data radio bearers are mapped via reflected mapping or control signaling For reflection mapping, the gNB220 can inform The SDAP 225 of the UE 210 receives the downlink packet from the SDAP 215 of the UE 210. The QoS flow is then detected and used to determine the mapping / de-mapping between the QoS flows and the data radio bearers. The packets may be marked with a QoS Flow Indicator (QFI).

[0079] PDCP214 and PDCP224 are used to transmit the Header compression / decompression to reduce the amount of data transmitted over the air interface Encryption / decryption to prevent unauthorized decryption of data, and integrity protection (control messages) PDC may also take measures to ensure that messages originate from their intended source. P214 and 224 are used for, e.g., retransmission of unsent packets, in-sequence of packets, Duplicate received packets for delivery and reordering, as well as intra-gNB handover The PDCPs 214 and 224 may perform packet removal. and at the receiver, packet duplication may be performed to remove any duplicate packets. Packet duplication can be useful for services that require high reliability.

[0080] Although not shown in FIG. 3, PDCPs 214 and 224 may be used in a dual connection scenario. In this way, the mapping / demapping between the split radio bearers and the RLC channels can be performed. Dual connectivity means that the UE is connected to two cells, or more generally, to a Master Cell Group (MC G) and Secondary Cell Group (SCG). The split bearer is a service to SDAP 215 and 225. A single radio bearer, such as one of the radio bearers provided by PDCPs 214 and 224. When a cell group is served by a dual connection, the PDCP214 and 2 24 maps / maps split radio bearers between RLC channels belonging to a cell group. The lock can be released.

[0081] RLC 213 and 223 receive the replicas from MAC 212 and 222, respectively. Segmentation of data units, retransmission via automatic repeat request (ARQ), and The RLC 213 and 223 can perform Transparent Mode (TM), Supports three transmission modes: Unacknowledged Mode (UM) and Acknowledged Mode (AM). Depending on the transmission mode in which the RLC is operating, the RLC may This RLC configuration may be implemented using one or more of the following: The Time To Interval (TTI) duration can be independent of the Time To Interval (TTI) duration for each logical channel. Thus, RLC213 and 223 serve PDCP214 and 224, respectively. The RLC channel may be provided as

[0082] MAC212 and MAC222 multiplex / demultiplex logical channels and / or may perform mapping between logical channels and transport channels. The heavy separation is performed by transport blocks (TBs) delivered to / from PHYs 211 and 221. ) multiplexing / demultiplexing of data units belonging to one or more logical channels to / from The MAC 222 may include a scheduler for scheduling between UEs through dynamic scheduling. The UE may be configured to perform scheduling, scheduling information reporting, and priority processing. Scheduling is done by the gNB220 (MAC22 2). The MACs 212 and 222 may be implemented with a Hybrid Automatic Repeat Request (H ARQ) (e.g., in case of carrier aggregation (CA), one HARQ entity per carrier) UE 210 logical channel prioritization through error correction, logical channel prioritization, The MAC21 may be configured to handle priority handling between the channels and / or padding. 2 and MAC222 may select one or more numerologies and / or transmission timings. In one embodiment, the mapping restriction in logical channel prioritization supports , which numerology and / or transmission timing a logical channel can use As shown in FIG. 3, the MACs 212 and 222 can control the service The RLC 213 and 223 may provide logical channels as

[0083] PHYs 211 and 221 are used to transmit and receive information over the air interface. Mapping of transport channels to logical channels and digital and analog signals These digital and analog signal processing functions may include, for example, The PHYs 211 and 221 may include multi-antenna As shown in FIG. 3, PHYs 211 and 221 may perform the service and 2 and 222. do.

[0084] Figure 4A shows the downlink data flow through the NR user plane protocol stack. Figure 4A shows an example of three IP packets passing through the NR user plane protocol stack. The downlink data flow of packets (n, n+1, and m) is shown in Fig. 2. Generates one TB. Uplink data through the NR user plane protocol stack. The data flow may be similar to the downlink data flow shown in FIG. 4A.

[0085] The downlink data flow of FIG. 4A is represented by the SDAP 225, which is configured to receive one or more QoS frames. Three IP packets are received from the row and the three packets are mapped to the radio bearer. In FIG. 4A, the SDAP 225 routes IP packets n and n+1 to the first 4. Map IP packet m to a second wireless bearer 404. An SDAP header (labeled "H" in Figure 4A) is added to the IP packet. Data units from / to higher protocol layers are transmitted to / from lower protocol layer services. A data unit to / from a lower protocol layer is called a Service Data Unit (SDU). The packet is called a Protocol Data Unit (PDU) of the higher protocol layer. As shown in Figure 2, the data unit from the AP 225 is transmitted to the lower protocol layer PDCP 22 It is an SDU of 4 and a PDU of SDAP225.

[0086] The remaining protocol layers of FIG. 4A perform related functions (e.g., with respect to FIG. 3) and Each output may then be forwarded to the next lower layer, adding the corresponding header. 24 may perform IP header compression and encryption and forward the output to the RLC 223. The RLC 223 may optionally (e.g., as shown for IP packet m in FIG. 4A ) ) and forwards the output to the MAC 222. The AC 222 may multiplex several RLC PDUs and append the MAC subheader to the R In NR, the LC PDUs can be attached to form transport blocks as shown in Figure 4A. As shown, the MAC subheader can be distributed across the entire MAC PDU. The C subheader may be placed entirely at the beginning of the MAC PDU. The MAC PDU subheader is calculated before the complete MAC PDU is assembled. This may reduce processing time and associated delays.

[0087] FIG. 4B shows an example of the format of the MAC subheader in the MAC PDU. The C subheader contains the length (in bytes) of the MAC SDU that the MAC subheader covers. A SDU length field to indicate the number of MAC SDUs to support the demultiplexing process. A Logical Channel Identifier (LCD) field to identify the logical channel that was started to support field, a flag (F) to indicate the size of the SDU length field, and It contains a reserved bit (R) field for

[0088] FIG. 4B further illustrates the MAC PD For example, Figure 4B shows a MAC Control Element (CE) inserted in the MAC PDU. The MAC CE is shown in Figure 4B. at the start of the MAC PDU for uplink transmissions It may be inserted at the end of a DU. The MAC CE is used for in-band control signaling. Examples of MAC CE include buffer status reports and power headroom reports. Scheduling related MAC CE such as QoS, PDCP duplicate detection enable / disable, channel Channel Status Information (CSI) reporting, Sounding Reference Signal (SRS) transmission, and pre-configuration Completed components, such as start / stop MAC CE, Discontinuous Reception (DR X) Associated MAC CE, timing advance MAC CE, and random access associated MA The MAC CE has a format similar to that described in the MAC SDU. It may be preceded by a MAC subheader of the MAC CE. A reserved value may be used in the LCID field to indicate the type of information.

[0089] Before describing the NR control plane protocol stack, we first need to consider logical channels, transport The mapping between the channels and physical channels and channel types is first described. One or more channels are used to communicate with the NR control plane protocol stack, which is described below. The device may perform functions related to the device.

[0090] 5A and 5B show logical channel diagrams for the downlink and uplink, respectively. The information indicates the mapping between N channels, transport channels, and physical channels. R is transmitted through a channel between the RLC, MAC, and PHY of the protocol stack. Logical channels can be used between RLC and MAC and are part of the NR control plane. As a control channel to carry control and configuration information or within the NR user plane Logical channels can be classified as traffic channels that carry specific data. It can be a dedicated logical channel dedicated to a specific UE or a common logical channel that can be used by multiple UEs. Logical channels can also be classified according to the type of information they carry. The set of logical channels defined by NR may include, for example, - Used to page UEs whose location is unknown to the network at cell level. A Paging Control Channel (PCCH) for displaying paging messages used , - Master Information Block (MIB) and several System Information Blocks (SIB ) for transmitting system information messages in the form of a broadcast control channel (B CCH), the system information message is used by the UE to broadcasters, which are configured to receive information about how the a broadcast control channel; - A common control channel (C) for transmitting control messages along with random access CCH) and - Dedicated for sending control messages to and from a specific UE to configure the UE A control channel (DCCH); - A dedicated traffic channel ( DTCH).

[0091] The transport channel is used between the MAC layer and the PHY layer to transmit the information. The NR standard defines how the LTE-2000 / 2000 / 1000 / 2000 / 1000 / 2000 / 1000 / 2000 / 1000 / 1000 / 2 ...1000 / 2000 / 10 The set of transport channels defined by the - a paging channel for transmitting paging messages originating from the PCCH; (PCH) and - a Broadcast Channel (BCH) for carrying the MIB from the BCCH; - Downlink data and signaling messages, including SIBs from BCCH Downlink Shared Channel (DL-SCH) for transmission of - an uplink for transmitting uplink data and signaling messages; A shared channel (UL-SCH) and - Randomization that allows UEs to connect to the network without prior scheduling and a Real-time Access Channel (RACH).

[0092] The PHY can use physical channels to pass information between processing levels of the PHY. A physical channel is a time period used to carry information for one or more transport channels. The PHY may have an associated set of frequency resources. The PHY generates control information to communicate with the PHY's low level It supports packet-based operation through physical control channels known as L1 / L2 control channels. It can provide control information to the lower levels of the PHY. The set of physical control channels may be, for example, - a Physical Broadcast Channel (PBCH) to carry the MIB from the BCH; - downlink data and signaling messages from the DL-SCH, and A Physical Downlink Shared Channel (PDS) for carrying paging messages from the PCH CH) and - Downlink scheduling commands, uplink scheduling grants, and and uplink power control commands. a physical downlink control channel (PDCCH) for - UL-SCH and, in some cases, uplink control information, as described below A physical uplink for carrying uplink data and signaling messages from the UCI a Plink Shared Channel (PUSCH); - HARQ acknowledgement, Channel Quality Indicator (CQI), Precoding PMI, RI, and Schedule A physical uplink control channel ( PUCCH) and - a Physical Random Access Channel (PRACH) for random access; nothing.

[0093] Similar to the physical control channel, the physical layer provides physical interfaces to support the low-level operation of the physical layer. As shown in Figures 5A and 5B, the physical layer signal defined by NR is generated. The primary synchronization signal (PSS), secondary synchronization signal (SSS), and channel state Communication status information reference signal (CSI-RS), demodulation reference signal (DMSR), sounding reference signal These include the Phase Tracking Reference Signal (SRS), and the Phase Tracking Reference Signal (PT-RS). Layer signals are described in more detail below.

[0094] FIG. 2B illustrates an example of the NR control plane protocol stack. The control plane protocol stack is the same as the NR user plane protocol stack example. A first four protocol layers similar to those described above may be used. These four protocol layers include PH Y211 and 221, MAC212 and 222, RLC213 and 223, and These include PDCP214 and 224. So instead of having SDAP215 and 225 at the top of the stack, we have NR controlled preamps. The NR control plane stack is implemented with radio resource control (RR) on top of the NR control plane protocol stack. C) 216 and 226, and NAS protocols 217 and 237.

[0095] The NAS protocols 217 and 237 are configured to communicate between the UE 210 and the AMF 230 (e.g., 158A), or more generally between the UE 210 and the CN. The NAS protocols 217 and 237 provide signaling called NAS messages. The AMF 230 provides a control plane function between the UE 210 and the AMF 230 via nulling messages. There is a direct path between the UE 210 and the AMF 230 through which the NAS message can be transmitted. NAS messages are sent using the AS on the Uu and NG interfaces. NAS protocols 217 and 237 provide authentication, security, connection setup, The QoS management unit may provide control plane functions such as packet forwarding, mobility management, and session management.

[0096] RRC 216 and 226 are between the UE 210 and the gNB 220, or more generally The RRC 216 and the RAN may provide a control plane function between the UE 210 and the RAN. 226 communicates with the UE 210 via signaling messages called RRC messages. The RRC message may provide a control plane function between the gNB 220 and the Radio bearer and same / similar PDCP, RLC, MAC and PHY protocols Layers may be used to transmit between the UE 210 and the RAN. The MAC layer is the control plane and and user plane data may be multiplexed within the same transport block (TB). RRC216 and 226 are used to broadcast system information related to the AS and NAS. paging initiated by the CN or the RAN; Routing between the UE 210 and the RAN RC connection establishment, maintenance and release, security functions including key management, system Establishment, configuration, maintenance and release of signaling radio bearers and data radio bearers mobility functions, QoS management functions, UE measurement reports and report control, wireless link Detection and recovery of link failures (RLF) and / or control planes such as NAS message forwarding As part of establishing an RRC connection, the RRC 216 and 226 RRC context, which may involve setting parameters for communication between the UE 210 and the RAN. A cyst can be established.

[0097] FIG. 6 is an exemplary diagram illustrating RRC state transitions of a UE. The UE is a wireless device as shown in FIG. 2A and 2B , or any of the devices 106, 210, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 390, 40 As shown in FIG. 6, the UE may be the same as or similar to the other wireless devices. That is, the RRC connection 602 (e.g., RRC_CONNECTED), RRC Idle 604 (e.g., RRC_IDLE), and RRC inactive 606 (e.g., RRC_INACTIVE).

[0098] In the RRC connection 602, the UE has an established RRC context and at least A base station may have one RRC connection with a RAN 104 shown in FIG. or one of a plurality of base stations, such as one of the gNB 160 or ng-eNB 162 shown in FIG. 1B , gNB 220 shown in FIG. 2A and FIG. 2B , or any other base station described in this disclosure. The base station to which the UE is connected may have an RRC context for the UE. The RRC context, called the UE context, is used for communication between the UE and the base station. These parameters may include, for example, one or more of AS context, one or more radio link configuration parameters, bearer configuration information (e.g. For example, data radio bearers, signalling radio bearers, logical channels, QoS flows, and and / or PDU session related), security information, and / or PHY, MAC, RLC, PDCP, and / or SDAP layer configuration information may be included. In step 602, the UE's mobility is determined by the RAN (e.g., RAN 104 or NG-RAN 105). 54) The UE can receive the signal levels from the serving cell and neighboring cells. (e.g., reference signal level) and compare these measurements with the The UE's serving base station may then report the reported measurements to the serving base station. The RRC state may be RRC connected 60. 2 to RRC Idle 604 via a Connection Release procedure 608; Or it may transition to RRC inactive 606 via a connection inactive procedure 610.

[0099] In RRC idle 604, no RRC context can be established for the UE. In RRC Idle 604, the UE may not have an RRC connection with the base station. During 4, the UE may be in a sleep state most of the time (e.g., low battery power). The UE must wake up periodically (e.g., once every discontinuous reception cycle) to In addition, the UE can monitor paging messages from the RAN. The RRC states can be managed by the UE through a procedure known as route reselection. Via a connection establishment procedure 612, which may involve a random access procedure as will be discussed in more detail. A transition may occur from RRC Idle 604 to RRC Connected 602.

[0100] In RRC Inactive 606, the previously established RRC context is This allows the transition from RRC idle 604 to RRC connected 602. Compared to the previous example, the signaling overhead is reduced, allowing for a faster transition to the RRC connection 602. In RRC Inactive 606, the UE is in a sleep state and the UE monitoring The RRC state can be managed by the UE through cell reselection. From the active 606, a connection resumption procedure 614 may be performed to return to the RRC connection 602 or to the connection resumption procedure 614. via a connection release procedure 616 which is the same as or similar to the lease procedure 608 The process may proceed to 604.

[0101] The RRC state may be associated with a mobility management mechanism. In RRC inactive 604 and RRC inactive 606, mobility is controlled by the UE through cell reselection. The mobile terminals in RRC idle 604 and RRC inactive 606 are managed by the The purpose of the service management is to allow the network to provide paging services throughout the entire mobile communication network. Events can be reported to the user via paging messages without broadcasting a message. E. RRC Idle 604 and RRC Inactive The mobility management mechanism used in 606 is that the paging message is sent to the mobile communication Broadcast on the cells of the cell group in which the UE is currently located instead of the entire network. Enables the network to track UEs on a cell group level so that they can be monitored The mobility management mechanism for RRC idle 604 and RRC inactive 606 The algorithms track UEs on a cell group level. They offer different granularity of grouping. For example, you can use three levels of granularity for cell grouping: That is, individual cells, within a RAN area, are identified by a RAN Area Identifier (RAI). Cells and RAs, called tracking areas and identified by a Tracking Area Identifier (TAI). It may be a cell in a group of N areas.

[0102] The tracking area may be used to track the UE at the CN level. 102 or 5G-CN152) provides a list of TAIs associated with the UE registration area. The UE may provide the TA associated with the UE registration area through cell reselection. If the UE moves to a cell associated with a TAI that is not included in the list of CN The CN performs a registration update so that the UE can update its location, and provides the UE with a new UE registration area. It can be provided.

[0103] The RAN area can be used to track the UE at the RAN level. For a UE in active 606 state, the UE may be assigned a RAN notification area. A RAN Notification Area contains a list of one or more Cell Identities, RAIs, or In one embodiment, the base station may include one or more RAN notification areas. In one embodiment, a cell may belong to one or more RAN notification areas. The UE can reselect a cell to be included in the RAN notification area assigned to the UE. If the UE moves to a cell that does not have a notification area, the UE will perform an update of the notification area with the RAN and You can update your knowledge area.

[0104] The base station that stores the RRC context for the UE or the last serving base station for the UE The base station may be called an anchor base station. An anchor base station is at least a base station that a UE is connected to. - During the time the UE remains in the base station's RAN notification area and / or when the UE is in a non-RRRC During the time that the UE remains in the active state 606, the RRC context for the UE is maintained. obtain.

[0105] A gNB, such as gNB160 in FIG. 1B, consists of two parts: a central unit (gNB-C gNB-C The U may be coupled to one or more gNB-DUs using an F1 interface. The gNB-CU may include RRC, PDCP, and SDAP. The gNB-DU , RLC, MAC, and PHY.

[0106] In NR, physical signals and physical channels (Figures 5A and 5B) are multiplexed using orthogonal frequency division multiplexing (OFDM). OFDM uses F orthogonal subcarriers (also is a multicarrier communication scheme that transmits data on a set of tones. Before transmission, the data is a set of complex symbols, called source symbols, that are split into F parallel symbol streams. symbols (e.g., M-quadrature amplitude modulation (M-QAM) or M-phase shift keying (M-PS F parallel symbol streams can be mapped into K (symbols). The inverse fast Fourier transform (FFT) is used to convert them to the time domain. The IFFT block uses F parallel symbols. F source symbols, one at a time from each of the source streams, Use the VOI to calculate the amplitude and position of one of the F sinusoidal basis functions corresponding to the F orthogonal subcarriers. The output of the IFFT block represents the sum of F orthogonal subcarriers. The F time domain samples can be F time domain samples representing a single OFDM symbol. Some processing (e.g. adding a cyclic prefix) and After up-conversion and conversion, the OFDM symbols provided by the IFFT block are , can be transmitted over the air interface on a carrier frequency. The frames may be mixed using the FFT block before being processed by the IFFT block. This process is performed by converting the pre-encoded OF data into a discrete Fourier transform (DFT). It generates the DM symbol and is used by the UE in the uplink to measure the peak-to-average power ratio (P The inverse process is performed at the receiver using the FFT block. It may be performed on the DM symbols to recover the data that was mapped to the source symbols.

[0107] FIG. 7 shows an example of the structure of an NR frame in which OFDM symbols are grouped. A frame can be identified by a System Frame Number (SFN). As shown, one NR frame may be repeated for a duration of 10 It may be in milliseconds (ms) and contains 10 subframes of 1 ms duration. A subframe may be, for example, a slot that contains 14 OFDM symbols per slot. It may be divided into lots.

[0108] The duration of a slot depends on the numerology used for the OFDM symbol of the slot. In NR, different cell deployments (e.g., cells with carrier frequencies up to mm-wave range) Flexible numerology is supported to accommodate mobile networks with carrier frequencies below 1 GHz. The numerology is based on the subcarrier spacing and cyclic prefix duration. For NR numerology, the subcarrier spacing is 1 Even when scaled up by a power of two from the baseline subcarrier spacing of 5 kHz Often, the cyclic prefix duration is 4.7 ums baseline cyclic The NRZ prefix duration can be scaled down by a power of 2. For example, The following subcarrier spacing / cyclic prefix duration combinations are used: Define the numerology: 15kHz / 4.7ums, 30kHz / 2.3ums, 6 0kHz / 1.2ums, 120kHz / 0.59ums, and 240kHz / 0.2 9ums.

[0109] A slot has a fixed number of OFDM symbols (e.g., 14 OFDM symbols). Numerologies with higher subcarrier spacing have shorter slot durations, which Depending on the number of slots per subframe, the number of slots per subframe is large. The slot duration and slot transmission structure per subframe are shown (for ease of illustration). (For this reason, numerologies with 240 kHz subcarrier spacing are not shown in Figure 7.) Subframes in NR can be used as numerology-independent time references, but slots is used as the unit around which uplink and downlink transmissions are scheduled. To support low latency, scheduling in NR is based on slot duration. It is separated from the OFDM symbol and can start with any OFDM symbol and end with as many symbols as are needed for transmission. These partial slot transmissions are called minislot or subslot transmissions. You may call.

[0110] FIG. 8 shows an example of a slot configuration in the time and frequency domain of an NR carrier. A slot contains resource elements (RE) and resource blocks (RB). The smallest physical resource in NR. RE is a frequency domain resource as shown in Figure 8. RB spans one OFDM symbol in the time domain. The NR capture spans 12 consecutive REs in the frequency domain, as shown in Figure 8. The rear can be limited to a width of 275RB or 275 x 12 = 3300 subcarriers. These restrictions, if used, limit the NR carriers to subcarrier spacings of 15, 30, 60, and 120kHz, respectively, at 50, 100, 200, and 400MHz. may be limited, with the 400 MHz bandwidth based on the 400 MHz per carrier bandwidth limit. It can be set based on the

[0111] Figure 8 shows a single numerology used across the entire bandwidth of an NR carrier. In an example configuration, multiple numerologies may be supported on the same carrier.

[0112] NR supports a wide range of carrier bandwidths (e.g., up to 120 kHz subcarrier spacing). All UEs will be able to receive the full bandwidth of the carrier. It is not always possible to receive the entire carrier bandwidth (e.g., due to hardware limitations). This may be prohibited from the perspective of UE power consumption. For this purpose, and / or for other purposes, the UE may Based on the amount of data received, the UE may adapt the size of its receiving bandwidth. This is called bandwidth adaptation. can be.

[0113] NR supports UEs that cannot receive the full carrier bandwidth and supports bandwidth adaptation. In one embodiment, the BWP is the number of consecutive RBs on a carrier. A UE may be defined by a subset of one or more downlinks per serving cell. downlink BWP and one or more uplink BWPs (e.g., per serving cell) up to four downlink BWPs and up to four uplink BWPs) (e.g. via the RRC layer) for the serving cell at a given time. One or more of the BWPs may be active. P may be called the active BWP of the serving cell. When configured with uplink carriers, the serving cell One or more primary active BWPs and secondary uplink carriers There may be one or more second active BWPs.

[0114] For unpaired spectrum, the downlink BWP index of the downlink BWP If the uplink BWP index of the uplink BWP and the uplink BWP are the same, the configured downlink Downlink BWPs from a set of downlink BWPs are sent to the set of configured uplink BWPs. For unpaired spectrum, the UE may link with an uplink BWP from is that the center frequency of the downlink BWP is the same as the center frequency of the uplink BWP. Predictable.

[0115] Downlink BWPs in the set of configured downlink BWPs on the primary cell (PCell) For a link BWP, the base station assigns one or more UEs to at least one search space. The search space can consist of multiple control resource sets (CORESETs). A set of locations in the time and frequency domain where information can be found. The space can be a UE-specific search space or a common search space (potentially usable by multiple UEs). For example, the base station may select the PCell UEs in a common search space on the primary or primary secondary cell (PSCell). It can be achieved.

[0116] For an uplink BWP in the set of configured uplink BWPs, the BS By configuring the UE with one or more resource sets for one or more PUCCH transmissions, The UE can select the configured numerology (e.g., sub- downlink B according to the carrier spacing and cyclic prefix duration The UE may receive downlink signals (e.g., PDCCH or PDSCH) in the WP. The numerology to be configured (e.g., subcarrier spacing and size of the uplink BWP) Click prefix length) according to the uplink transmission (e.g. For example, a PUCCH or a PUSCH may be transmitted.

[0117] One or more BWP indicator fields are included in the Downlink Control Information (DCI The value of the BWP indicator field is used to indicate the set of configured BWPs. Which BWP is active downlink B for one or more downlink receptions? The value of one or more of the BWP indicator fields may indicate whether the It may indicate an active uplink BWP for one or more uplink transmissions.

[0118] The base station determines the differential among the set of configured downlink BWPs associated to the PCell. The UE may be semi-statically configured with a default downlink BWP. If you do not provide a default downlink BWP, the default downlink BWP is The UE may acquire the downlink BWP using the PBCH. Based on the configured CORESET configuration, which BWP is the initial active downlink BWP It may be determined whether

[0119] The base station can configure the UE with a BWP inactivity timer value for the PCell. The BWP inactivity timer may be started or restarted at any appropriate time. For example, (a) the UE uses a downlink BWP other than the default downlink BWP for paired spectrum operation. or (b) when the UE detects a DCI indicating an active downlink BWP of Default downlink BWP or uplink BWP for unpaired spectrum operation D indicates an active downlink BWP or an active uplink BWP other than WP Upon detecting a CI, the UE may start or restart a BWP inactivity timer. If the UE does not detect a DCI for a certain period of time (e.g., 1 ms or 0.5 ms), the UE may run the BWP inactivity timer towards expiration (e.g., from zero to BWP Increment the BWP inactivity timer value or decrement it from the BWP inactivity timer value to zero. When the BWP inactivity timer expires, the UE The BWP may be switched from the downlink BWP to the default downlink BWP.

[0120] In one embodiment, the base station may semi-statically configure the UE with one or more BWPs. The UE may receive a DCI indicating the second BWP as the active BWP. and / or in response to the expiration of a BWP inactivity timer (e.g., If the second BWP is the default BWP), switch the active BWP from the first BWP to the second You can switch to the BWP.

[0121] Downlink and uplink BWP switching (BWP switching is currently Switching from the currently active BWP to the currently not active BWP) is In unpaired spectrum, the downlink and Uplink BWP switching can be performed simultaneously. Switching between configured BWPs is , RRC signaling, DCI, expiry of the BWP inactivity timer, and / or This may occur based on the initiation of random access.

[0122] FIG. 9 shows an example of bandwidth adaptation using three configured BWPs for an NR carrier. A UE configured with three BWPs switches from one BWP to another at a switching point. In the example shown in FIG. 9, the BWP has a bandwidth of 40 MHz and a subcarrier BWP902 with 15kHz spacing, 10MHz bandwidth, 15kHz subcarrier spacing and BWP904 with a bandwidth of 20 MHz and subcarrier spacing of 60 kHz. 06. BWP 902 may be the initial active BWP, and BWP 904 The BWP may be the default BWP. The UE may switch between BWPs at a switching point. In the example of FIG. 9, the UE switches from BWP 902 to BWP 904 at switching point 908. The switch at switch point 908 may be initiated, for example, by a BWP inactivity timer (def In response to the expiration of a fault BWP (indicating switching to an active BWP) and / or In response to receiving a DCI indicating BWP 904 as the WP, The UE receives a DCI indicating BWP 906 as the active BWP. In response, a switch may occur from the active BWP 904 to BWP 906 at switch point 910 . The UE may initiate a BWP 904 in response to expiration of the BWP inactivity timer and / or In response to receiving a DCI indicating an active BWP, the active BWP is switched to the active BWP at switching point 912. The UE may switch the active BWP 902 from BWP 906 to BWP 904. In response to receiving a DCI indicating that the active BWP is a You may switch to BWP902.

[0123] The UE is configured to use the default downlink BWP with a set of timer values. If configured for a secondary cell in the link BWP, the BWP on the secondary cell The UE procedures for switching between the primary and secondary cells may be the same / similar to those on the primary cell. For example, the UE may use the same / similar values ​​for the primary cell as the UE uses these values ​​for the primary cell. In this manner, the timer values ​​and default downlink BWP are used for secondary cells. It can be used.

[0124] To provide greater data rates, two or more The CA can aggregate multiple carriers and transmit simultaneously to and from the same UE. The aggregation carrier of CA may be called a component carrier (CC). When using , there are many serving cells for the UE and one cell for the CC. can have three configurations in the frequency domain.

[0125] FIG. 10A shows a three CA configuration with two CCs. In-band, consecutive configuration 100 In 2, the two CCs are aggregated in the same frequency band (frequency band A) and In a non-contiguous intra-band configuration 1004, two CCs are aggregated in the same frequency band (frequency band A) and are divided into frequency bands by gaps. In the intra-band configuration 1006, the two CCs are separated into frequency bands (frequency bands A and B). It is located in frequency band B.

[0126] In one embodiment, a maximum of 32 CCs can be aggregated. Aggregation CC may have the same or different bandwidth, subcarrier spacing, and / or duplexing scheme (TD The serving cell of a UE using CA may have downlink C For FDD, one or more uplink CCs may optionally have A 10GbE LTE-2000 can be configured for a 10GbE LTE-2000 serving cell. The ability to aggregate data allows, for example, a UE to use more downlink data than uplink data. This may be useful when there is more data traffic in the downlink.

[0127] When using CA, one of the aggregation cells of the UE is designated as the primary cell (PC The PCell is the area where the UE initially establishes, re-establishes, and The PCell may be the serving cell to which the UE is connected in handover. The AS may provide mobility information and security input. The UE may have different PCells. In the downlink, the carrier corresponding to the PCell is the downlink primary C C (DL PCC). In the uplink, the carrier corresponding to the PCell The uplink primary CC (UL PCC) may be called the uplink primary CC (UL PCC). The aggregation cell may be referred to as a secondary cell (SCell). , SCell may be configured after the PCell is configured for the UE. The SCell can be configured via the RRC connection reconfiguration procedure. The carrier corresponding to may be called a Downlink Secondary CC (DL SCC). In the uplink, the carrier corresponding to the SCell is the uplink secondary CC. It may also be called (UL SCC).

[0128] The SCell configured for a UE may be determined based on, for example, traffic and channel conditions. The SCell can be deactivated based on the PDCCH and PDSCH reception is stopped, and PUSCH, SRS, and CQI transmission on the SCell are stopped. The configured SCell may mean that the MAC CE is disabled with respect to FIG. For example, the MAC CE can be activated and deactivated using a bitmap (e.g., S A bit per cell is used to indicate which SCell (e.g. configured It may indicate whether a configured SCell (among a subset of SCells) is activated or deactivated. The cell is configured with an SCell deactivation timer (e.g., one SCell deactivation timer per SCell). The service may be terminated in response to expiration of a time limit (timer).

[0129] Downlink control such as cell scheduling allocation and scheduling grants The information is stored on the cells corresponding to the allocation and grant, known as self-scheduling. The DCI for a cell can be transmitted using a technique known as cross-carrier scheduling. Uplink control information for aggregation cells (e.g. For example, HARQ acknowledgments and channel state facsimiles such as CQI, PMI, and / or RI. The aggregated PUCCH (feedback) may be transmitted on the PUCCH of the PCell. If the number of downlink CCs is large, the PUCCH of the PCell may be overloaded. A cell may be divided into multiple PUCCH groups.

[0130] FIG. 10B illustrates how an aggregation cell is configured into one or more PUCCH groups. An example of how PUCCH group 1010 and PUCCH group 10 can be used is shown. 50 may each include one or more downlink CCs. UCCH group 1010 is composed of PCell 1011, SCell 1012, and The PUCCH group 1050 includes three downlink CCs of the SCell 1013. In this embodiment, PCell 1051, SCell 1052, and SCell 105 3. One or more uplink CCs are 1021, SCell 1022, and SCell 1023. or multiple other uplink CCs are Primary SCells (PSCells) 1061 , SCell1062, and SCell1063. , UCI1032, and UCI1033 for PUCCH group 1010. The uplink control information (UCI) related to the downlink CC is Can be transmitted on the uplink. UCI1071, UCI1072, and UCI1073 The uplink associated with the downlink CC of PUCCH group 1050 is shown as Control information (UCI) may be transmitted on the uplink of the PSCell 1061. In FIG. 10B, the aggregation cells are grouped into PUCCH group 1010 and If the PUCCH group is not divided into PUCCH groups, the UC associated with the downlink CC A single uplink PCell for transmitting I and PCell is overloaded. It is possible to split the UCI transmission between PCell1021 and PSCell1061. This can prevent overload.

[0131] A cell containing a downlink carrier and an optional uplink carrier has a physical cell You can assign IDs and cell indices. Physical cell IDs or cell indexes Depending on the context, for example, the physical cell ID is used, and the downlink The physical cell ID may identify the downlink carrier and / or the uplink carrier. The synchronization may be determined using a synchronization signal transmitted on the link component carrier. The cell index can be determined using an RRC message. In this case, the physical cell ID is sometimes called the carrier ID. For example, the present disclosure may be referred to as an index for the first downlink carrier. When referring to a first physical cell ID for a first datum, the present disclosure is intended to include It can be understood that the term is for a cell that includes a downlink carrier. The concept may be applied to, for example, the activation of a carrier. When indicating a first carrier, the specification may mean that the cell including the first carrier is activated.

[0132] In CA, the multi-carrier nature of the PHY may be exposed to the MAC. The ARQ entity may operate on the serving cell. It can be generated per assignment / grant per serving cell. and potential HARQ retransmissions of the transport block are mapped to the serving cell It can be done.

[0133] In the downlink, a base station transmits one or more reference signals (RS) (e.g., As shown in FIG. 5A, PSS, SSS, CSI-RS, DMRS, and / or P T-RS) (e.g., unicast, multicast, and / or broadcast) In the uplink, the UE may transmit one or more RSs to a base station (e.g., As shown in FIG. 5B, the DMRS, PT-RS, and / or SRS The PSS and SSS are transmitted by the base station and used by the UE. The UE can be synchronized to the base station. The PSS and SSS are Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) block including PBCH and SS / PBCH The base station may periodically transmit bursts of SS / PBCH blocks. do.

[0134] FIG. 11A shows an example of the structure and location of the SS / PBCH block. A burst of H blocks may consist of one or more SS / PBCH blocks (e.g., FIG. 11A A burst may contain four SS / PBCH blocks, as shown in A burst may be transmitted every 2 frames or every 20 ms (e.g., every 2 frames or every 20 ms). The frame may be limited to a single half frame (e.g., the first half frame having a duration of 5 ms). A is an example, and these parameters (number of SS / PBCH blocks per burst) , periodicity of the bursts, and the position of the bursts in the frame) are determined by, for example, the SS / PBCH block The carrier frequency of the cell where the network is transmitted, the numerology or subcarrier spacing of the cell, network (e.g., using RRC signaling), or any other suitable It will be appreciated that the UE may be configured based on a variety of factors. Subcarrier spacing for SS / PBCH blocks can be assumed based on carrier frequency. However, the wireless network may configure the UE to assume a different subcarrier spacing. This does not apply if

[0135] An SS / PBCH block is one or more OFDM symbols in the time domain (e.g. For example, four OFDM symbols as shown in the example of FIG. 11A) and One or more subcarriers in the domain (e.g., 240 consecutive subcarriers) ). The PSS, SSS, and PBCH may have a common center frequency. The PSS may be transmitted initially, for example, in one OFDM symbol and 127 The SSS may be transmitted after the PSS (e.g., after The BER may span two symbols, one OFDM symbol and 127 subcarriers. The PBCH may be transmitted after the PSS (e.g., over the next three OFDM symbols). In total, the signal may span 240 subcarriers.

[0136] The location of the SS / PBCH blocks in the time and frequency domains is known to the UE. (e.g., when the UE is searching for a cell). To find and select a cell, the UE The UE may monitor the carrier of the PSS. For example, the UE may monitor the frequency location within the carrier. If the PSS is not found after a certain period of time (e.g., 20 ms), the UE The PSS may be searched for at different frequency locations within the carrier, as shown by the periodic raster. If the PSS is found at a location in the time and frequency domain, the UE can Based on the known structure of the block, the locations of the SSS and PBCH may be determined, respectively. The SS / PBCH block may be a cell-defined SS block (CD-SSB). In an example, the primary cell may be associated with a CD-SSB. In one embodiment, cell selection / search and / or reselection may be performed by: It may be based on CD-SSB.

[0137] The SS / PBCH block determines one or more parameters of the cell by the UE. For example, the UE may determine the PSS and SSS based on the sequence of the PSS and SSS, respectively. The UE may then determine the physical cell identity (PCI) of the cell. Based on the location of the SS / PBCH block, the frame boundary of the cell may be determined. The mark may indicate that the signal was transmitted according to a transmission pattern, and the SS / P in the transmission pattern may indicate that the signal was transmitted according to a transmission pattern. The BCH blocks are a known distance from the frame boundary.

[0138] The PBCH may use QPSK modulation and may use forward error correction (FEC). The FEC may use polar coding. The multiple symbols may carry one or multiple DMRSs for demodulation of the PBCH. The PBCH transmits the cell's current System Frame Number (SFN) and / or SS / PB These parameters may include an indication of the CH block timing index. The PBCH may facilitate time synchronization to the base station. It may also contain a Master Information Block (MIB) that is used to provide is the minimum remaining system information (RSSI) used by the UE to associate with a cell The RMSI contains the System Information Block type 1 (SIB1). SIB1 may contain information necessary for the UE to access the cell. M may be used to schedule the PDSCH, and M may be used to monitor the PDCCH. The PDSCH may include one or more parameters of the SIB1. SIB1 can be decoded using parameters provided in the MIB. PBCH is , may indicate the absence of SIB1. E may indicate a frequency. The UE may transmit SS / PBCH blocks at the frequency indicated. It can be searched.

[0139] The UE may receive one or more SSs transmitted with the same SS / PBCH block index. / PBCH blocks are quasi-co-located (QCL) (e.g., same / similar Doppler spread, Doppler shift, average gain, average delay, and / or spatial Rx The UE can be assumed to have the following parameters for SS / PBCH block transmission: It cannot be assumed that the QCL has different SS / PBCH block indexes. .

[0140] SS / PBCH blocks (e.g., blocks within a half frame) are For example, the signal may be transmitted over a range of different beams across the coverage area of ​​the cell. In the example, a first SS / PBCH block is transmitted in a first spatial direction using a first beam. The second SS / PBCH block may be transmitted using a second beam and the second SS / PBCH block may be transmitted using a second spatial It can be transmitted in a direction.

[0141] In one embodiment, within the frequency span of a carrier, a base station may transmit multiple SS / PBCH blocks. In one embodiment, the first SS / PBCH block of the plurality of SS / PBCH blocks may be transmitted. The first PCI of the block is the second SS / PBCH block of the multiple SS / PBCH block. The second PCI of the block may be different from the first PCI of the block. The PCI of the blocks may be different or the same.

[0142] CSI-RS is transmitted by the base station and is used by the UE to receive channel state information (CSI). The base station may use the channel estimate or any other suitable method to obtain For this purpose, the UE may be configured with one or more CSI-RS. A UE may be configured with one or more of the CSI-RS. The UE can measure one or more downlink CSI-RS. Based on the RS measurements, the downlink channel conditions are estimated and / or the CSI report is generated. The UE may provide the CSI report to the base station. , feedback provided by the UE (e.g., estimated downlink channel conditions) state) may be used to perform link adaptation.

[0143] The base station can semi-statically configure the UE with one or multiple CSI-RS resource sets. CSI-RS resources are associated with a location and periodicity in the time and frequency domains. The base station may selectively activate and / or deactivate CSI-RS resources. The base station determines whether the CSI-RS resources in the CSI-RS resource set are activated and / or The UE may indicate that the UE is to be restarted or stopped.

[0144] The base station may configure the UE to report CSI measurements. The UE may be configured to provide CSI reports periodically or semi-permanently. For CSI reporting, the UE shall determine the timing and / or period of multiple CSI reports. For non-periodic CSI reporting, the base station may request a CSI report. For example, the base station may request the UE to measure the configured CSI-RS resources and For semi-persistent CSI reporting, In this case, the base station periodically sends periodic reports and instructs the UE to selectively start or stop the The base station can configure the CSI-RS resources using RRC signaling. The UE may be configured with a base set and a CSI report.

[0145] The CSI-RS configuration may be, for example, one or more antenna ports representing up to 32 antenna ports. The UE may include the following parameters: The resource elements that are automatically QCL'd and associated with the downlink CSI-RS are CORES If it is outside the physical resource block (PRB) configured for ET, the downlink C Use the same OFDM symbol for SI-RS and control resource set (CORESET) The UE can be configured to receive the downlink CSI-RS and SS / PBCH blocks. The resource elements that are spatially QCLed and associated with the downlink CSI-RS are SS / If it is outside the PRB configured for the PBCH block, the downlink CSI-RS and The SS / PBCH block can be configured to use the same OFDM symbol for both the SS / PBCH and SS / PBCH blocks.

[0146] The downlink DMRS may be transmitted by a base station and channel estimated by a UE. For example, a downlink DMRS may be used to determine the It can be used for coherent demodulation of the NR network physical channels (e.g., PDSCH). The network includes one or more variable and / or configurable DMR At least one downlink DMRS configuration may support the front-end S pattern. Can support pre-loaded DMRS patterns. The RS may be transmitted over one or more OFDM symbols (e.g., one or two adjacent OFDM symbols). The base station can map the PDSCH front-loaded DMR The number of S symbols (e.g., the maximum number) can be semi-statically configured in the UE. may support one or more DMRS ports. For example, a single-user MI For MO, the DMRS configuration supports up to eight orthogonal downlink DMRS ports per UE. For multi-user MIMO, up to four DMRS configurations can be supported per UE. The wireless network can support up to 100,000 orthogonal downlink DMRS ports. A general DMRS structure for the downlink and uplink (e.g., at least for CP-OFDM) ) DMRS location, DMRS pattern, and / or scrambling The sequences may be the same or different. The downlink DMS and corresponding PDSCH may be transmitted using the U E is one or more downlinks for coherent demodulation / channel estimation of PDSCH. A link DMR may be used.

[0147] In one embodiment, a transmitter (e.g., a base station) performs a precoder on a portion of a transmission bandwidth. For example, the transmitter may use a first precoder matrix for a first bandwidth. The first precoder matrix may be used for the second bandwidth. matrix and the second precoder matrix, the first bandwidth being different from the second bandwidth The UE may determine whether the same precoding matrix is It may be assumed that the precoding is used over a set of PRBs. These may be denoted as a grid resource group (PRG).

[0148] The PDSCH may include one or more layers. Another symbol may be assumed to be present on one or more layers of the PDSCH. Higher layers may configure up to three DMRS for a PDSCH.

[0149] The downlink PT-RS may be transmitted by the base station and may be The presence of the downlink PT-RS can be determined by the RRC configuration. The presence and / or pattern of downlink PT-RS depends on the RRC signaling. combination of nulling, and / or other purposes that may be indicated by the DCI (e.g., One or more parameters used in the modulation and coding scheme (MCS) Association can be configured on a UE specific basis. When configured, the downlink PT - The dynamic presence of the RS depends on one or more DCI parameters, including at least the MCS. NR networks can be defined in the time and / or frequency domains. Multiple PT-RS densities defined in the frequency domain can be supported. If present, it is associated with at least one scheduled bandwidth configuration. The UE can use the same precoder for the DMRS and PT-RS ports. The number of PT-RS ports is determined by the number of DM-R ports in the scheduled resources. The number of downlink PT-RSs may be less than the number of S-ports. The downlink PT-RS may be limited to a specific time / frequency period. For ease, it may be transmitted over symbols.

[0150] The UE may transmit an uplink DMRS to a base station for channel estimation. For example, a base station may provide a plurality of uplink physical channels for coherent demodulation of one or more uplink physical channels. For example, the UE may use the uplink DMRS for PUSCH and / or P The uplink DM-RS may be transmitted on the UCCH. It may span a range of frequencies similar to the range of frequencies associated with a channel. A station may configure a UE with one or more uplink DMRS configurations. At least one DMRS configuration may support the frontloaded DMRS pattern. The frontloaded DMRS can be transmitted over one or more OFDM symbols (e.g., or two adjacent OFDM symbols). The link DMRS is transmitted in one or more symbols of the PUSCH and / or PUCCH. The base station may be configured to transmit a single symbol DMRS and / or A PUSCH and / or a PUSCH that may be used to schedule a dual-symbol DMRS. Using the number of frontloaded DMRS symbols for PUCCH (e.g., the maximum number), the UE The NR network may be configured semi-statically. DMRS structure (e.g., Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OF) DMRS location, DMRS pattern, and The scrambled sequences of the DMRS and / or the DMRS may be the same or different.

[0151] The PUSCH may include one or more layers, and the UE may receive one or more of the PUSCH. At least one symbol having DMS present on a layer of multiple layers may be transmitted. In an example, higher layers may configure up to three DMRS for the PUSCH.

[0152] Uplink PT-RS (base station for phase tracking and / or phase noise compensation) The UE RRC configuration may or may not be present depending on the UE RRC configuration. The presence and / or pattern of uplink PT-RS may be determined by RRC signaling. Other purposes (e.g. Modulation, etc.) that may be indicated by the DCI and / or One or more parameters used in the Multicast and Coding Scheme (MCS) It can be configured on a UE specific basis by a combination of parameters. The dynamic existence of a link PT-RS is determined by one or more DCI parameters, including at least the MCS. The wireless network can be defined in the time / frequency domain. It is possible to support multiple uplink PT-RS densities that are Density is related to at least one configuration of scheduled bandwidth, if it exists. The UE can use the same DMRS and PT-RS ports. Precoding may be assumed. The number of PT-RS ports is determined based on the scheduled resources. For example, the uplink PT-RS may have fewer DM-RS ports than the E may be restricted to a scheduled time / frequency period.

[0153] The SRS supports uplink channel dependent scheduling and / or link adaptation. The UE may transmit the received signal to the base station for channel state estimation in order to transmit the received signal. The SRS transmitted by the base station is transmitted via an uplink channel on one or more frequencies. The base station scheduler may estimate the estimated uplink Using the channel condition, one or more PUSCHs are assigned for uplink PUSCH transmission from the UE. A base station can allocate one or more SRS resources. A UE can be semi-statically configured with a set of SRS resources. In this case, the base station may configure the UE with one or multiple SRS resources. The applicability of the SRS resource set is determined by higher layer (e.g., RRC) parameters. For example, if the higher layer parameters indicate beam management, or multiple SRS resource sets (e.g., with identical / similar time domain behavior, periodicity, SRS resources in a SRS resource set that has non-periodic and / or homogeneous The UE may transmit multiple SRS resources simultaneously (e.g., simultaneously). A periodic SRS resource may be transmitted. NR networks use aperiodic A UE may support one or more continuous, periodic, and / or semi-persistent SRS transmissions. A SRS resource may be sent based on any number of trigger types, and may be sent based on one or more trigger types. The RR may be based on higher layer signaling (e.g., RRC) and / or one or more In one embodiment, at least one DCI format The SRS resource set is used by the UE to select one or more configured SRS resource sets. SRS trigger type 0 is based on higher layer signaling. SRS trigger type 1 can refer to an SRS that is triggered based on one or more In one embodiment, the SRS may be triggered based on the DCI format. In other words, if PUSCH and SRS are transmitted in the same slot, the UE receives PUSCH and the corresponding SRS. The SRS may be configured to transmit after the transmission of the corresponding uplink DMRS.

[0154] The base station receives the SRS resource configuration identifier, the number of SRS ports, and the time of the SRS resource configuration. domain behavior (e.g., periodic, semi-persistent, or aperiodic SRS display), slots, Minislot and / or subframe level periodicity, periodic and / or aperiodic the offset for the SRS resource, the number of OFDM symbols in the SRS resource, SR S resource start OFDM symbol, SRS bandwidth, frequency hopping bandwidth, cyclic One or more digits indicating at least one of the following: A UE can be quasi-statistically configured with a number of SRS configuration parameters.

[0155] An antenna port is a set of symbols carried by the same antenna. The second symbol is defined so that the different symbols on the second port can be inferred from the channel on which they are carried. If the first symbol and the second symbol are transmitted on the same antenna port, the receiver , from a channel for carrying a first symbol on an antenna port, The channel (e.g., fade gain, multipath delay, etc.) for carrying the second symbol of , and / or the like). A first antenna port is one or more of the channels on which a first symbol on a first antenna port is transmitted. The second symbol of the second antenna port is transmitted from the second antenna port. If the lattice structure can be inferred from the lattice structure, it may be said to be quasi-colocated (QCLed). One or more of the large-scale properties may include delay spread, Doppler spread, Doppler shift, At least one of the average gain, average delay, and / or spatial reception (Rx) parameters may include:

[0156] In channels that use beamforming, beam management is required. , beam measurement, beam selection, and beam display. A beam may include one or more For example, a beam may be associated with one or more beamforming reference signals. The UE may be identified by a downlink reference signal (e.g., channel state information Perform downlink beam measurement based on the reference signal (CSI-RS) and beam measurement report The UE may create a downlink port after the RRC connection is set up with the base station. A Qbeam measurement procedure can be performed.

[0157] FIG. 11B illustrates a channel state information reference signal mapped to the time and frequency domains. FIG. 11B shows an example of CSI-RS. The squares shown in FIG. 11B represent resources within the bandwidth of the cell. The base station may indicate one or more CSI-RS. Send one or more RRC messages containing CSI-RS resource configuration parameters. One or more of the following parameters can affect the CSI-RS resource configuration: Configured by higher layer signaling (e.g. RRC and / or MAC signaling) The CSI-RS resource configuration identity, the number of CSI-RS ports, I-RS configuration (e.g., symbol and resource element (RE) positions within a subframe) , CSI-RS subframe configuration (e.g., subframe position, offset, and radio frame periodicity), CSI-RS power parameters, CSI-RS sequence parameters , Code Division Multiplexing (CDM) type parameters, frequency density, transmit comb, quasi-coherent QCL parameters (e.g., QCL-scramblingidentity, crs-portscount, mbsfn-subframeconfiglist, csi-rs-configZPid, qcl-csi-rs-configNZPid ), and / or other radio resource parameters.

[0158] The three beams shown in FIG. 11B can be configured for a UE in a UE-specific configuration. The beams are shown in FIG. 11B (Beam #1, Beam #2, and Beam #3), and more , or fewer beams may be configured. Beam #1 is configured within the RB of the first symbol. The CSI-RS 1101 may be assigned to one or more subcarriers. Beam #2 may be transmitted on one or more subcarriers in the RB of the second symbol. Beam #3 may be assigned in the RB of the third symbol. The CSI-RS 1103 may be transmitted on one or more subcarriers. By using frequency division multiplexing (FDM), the base station can transmit the same number of packets to other sub-channels in the same RB. Use a carrier (e.g., one that is not used to transmit CSI-RS1101) In this case, the UE may transmit a different CSI-RS associated with a different beam for the different UE. By using time division multiplexing (TDM), the beam used for a UE is different from the beam used for other UEs. The beam may be configured to use symbols from

[0159] The CSI-RS shown in FIG. 11B (e.g., CSI-RS 1101, 1102, 1103) ) may be transmitted by the base station and used by the UE for one or more measurements. For example, the UE may set the reference signal received power (RSRP) of the configured CSI-RS resource. The base station may configure the UE with a reporting configuration, and the UE may Based on the reporting configuration, the RSRP measurements are sent to the network (e.g., one or more In one embodiment, the base station may report the measurement results based on the reported measurements. determining one or more transmit configuration indication (TCI) states, including some reference signal, In one embodiment, the base station may indicate one or more TCI states to the UE (e.g., , RRC signaling, MAC CE, and / or DCI). The UE or a downlink having a receive (Rx) beam determined based on multiple TCI states. In one embodiment, the UE may or may not have beam-capable capability. If the UE has beam-capable capability, the UE may Based on the spatial domain filter of the beam, the spatial domain filter of the transmit (Tx) beam is If the UE does not have beam-capable capability, the UE may determine the uplink beamforming The UE may perform a beam selection procedure to determine the spatial domain filters of the Tx beams. One or more Sounding Reference Signal (SRS) references configured in the UE by the base station. Based on the source, the base station may perform an uplink beam selection procedure. an uplink UE based on measurements of one or more SRS resources transmitted; The beams may be selected and displayed.

[0160] In the beam management procedure, the UE manages one or more beam pair links, A beam pair includes a transmit beam transmitted by the UE and a receive beam received by the UE. Based on the evaluation, the UE may, for example, One or more beam identities (e.g., beam index, reference signal index, or or similar), RSRP, Precoding Matrix Indicator (PMI) , Channel Quality Indicator (CQI), and / or Rank Indicator (RI ) to send a beam measurement report showing one or more beam pair quality parameters. I can trust it.

[0161] FIG. 12A shows an example of three downlink beam management procedures, P1, P2, and P3. Step P1 may, for example, include one or more base station Tx beams and / or UE Rx beams. Supports the selection of frames (displayed as ellipses in the top and bottom rows of P1, respectively). In order to achieve this, the transmit (Tx) beam of a transmit-receive point (TRP) (or multiple TRPs) Beamforming at the TRP can be used to determine the Tx beam of a set of beams. (The top row of P1 and P2 may include an ellipse, as indicated by the dashed arrow. (The UE is shown rotating counterclockwise.) Beamforming at the UE is (as shown in the bottom row of P1 and P3) , the ellipse is rotating in the clockwise direction as indicated by the dashed arrow). Using procedure P2 , UE measurements can be enabled on the Tx beam of the TRP. (The ellipse is shown rotating counterclockwise, as indicated by the line arrow.) and / or the base station uses a smaller set of beams than those used in step P1, Or, perform step P2 using a narrower beam than that used in step P1. This can be called beam refinement. The UE can receive the same T The UE uses the x beam and sweeps the Rx beam to determine the Rx beam. Step P3 for this purpose can be carried out.

[0162] FIG. 12B shows an example of three uplink beam management procedures: U1, U2, and U3. Procedure U1 may be used to, for example, select one or more UE Tx beams and / or base stations. Supports selection of station Rx beams (shown as ellipses in the top and bottom rows of U1, respectively). In order to support the UE's Tx beam, the base station may be able to perform measurements on the UE's Tx beam. Beamforming in E involves, for example, Tx beam sweeping from a set of beams. (In the lines below U1 and U3, we obtain the ellipses rotated clockwise as indicated by the dashed arrows.) Beamforming at the base station, for example, distributes Rx beams from a set of beams. (The top row of U1 and U2 may include elliptical sweeps, as indicated by the dashed arrows.) (The circle is shown rotating counterclockwise.) Using procedure U2, the UE The base station may be able to adjust its Rx beam when using the beam. / or the base station uses a smaller set of beams than those used in step P1, and may carry out step U2 using a narrower beam than that used in step P1. This can be called beam refinement. The UE can receive the beam from the base station using a fixed Rx beam. When the Tx beam is used, a procedure U3 can be performed to adjust the Tx beam.

[0163] The UE may initiate a beam failure recovery (BFR) procedure based on detection of a beam failure. Upon initiation of the BFR procedure, the UE sends a BFR request (e.g., preamble, UCI, S R, MAC CE, and / or the like. The UE may transmit The quality of the beam pair link of the channel is not satisfactory (e.g., higher than the error rate threshold). a high error rate, a received signal power below a received signal power threshold, a timer expiry, and The beam obstruction may be detected based on a determination that the beam obstruction is a positive or negative one (e.g., 0.1 to 0.5 nm).

[0164] The UE receives one or more SS / PBCH blocks, one or more CSI-RS links, A single or multiple signal sources, including one or more demodulation reference signals (DMRSs), A number of reference signals (RS) may be used to measure the quality of the beam pair link. The quality of the link is measured by the Block Error Rate (BLER), RSRP value, and signal to interference plus noise ratio. Signal Integrity Ratio (SINR) value, Reference Signal Received Quality (RSRQ) value, and / or RS resource The base station may determine whether the RS resources are available based on one or more of the measured CSI values. One of the channels (e.g., a control channel, a shared data channel, and / or the like) It may indicate that the DM-RS is quasi-co-located (QCL'd) with one or more DM-RSs. The RS resource of the channel and one or more DMRSs are transmitted to the UE via the RS resource. Channel characteristics from transmission to (e.g., Doppler shift, Doppler spread, average delay, delay spread, spatial Rx parameters, fade, and / or the like) of the channel When the channel characteristics are similar or identical to those from a transmission to the UE via do.

[0165] network (e.g., the gNBs and / or ng-eNBs of the network) and / or Or the UE may initiate a random access procedure. / or the UE in RRC_INACTIVE state initiates a random access procedure to The UE may request a connection setup to the RRC_CONNECTED network. The UE may initiate a random access procedure from the UE state. Request uplink resources (e.g., S R for uplink transmissions), and / or uplink timing (e.g., The UE can obtain the random link synchronization state (if the random link synchronization state is not synchronized). initiates a system access procedure and transmits one or more System Information Blocks (SIBs) (e.g. other system information such as SIB2, SIB3, and / or similar) The UE may initiate a random access procedure for a beam obstruction recovery request. The network determines the time for handover and / or for adding a SCell. A random access procedure to establish alignment may be initiated.

[0166] Figure 13A shows a four-step contention-based random access procedure. Before the procedure begins, In the example shown in FIG. 13A, the base station may send a configuration message 1310 to the UE. 11, Msg2 1312, Msg3 1313, and Msg4 1314 Msg1 1311 is a preamble (or random access Msg2 may include and / or be referred to as a preamble. 1312 may include a random access response (RAR) and / or may also be called a Real Access Response (RAR).

[0167] The configuration message 1310 may be sent, for example, using one or more RRC messages. One or more RRC messages may be sent to the UE. It may indicate one or more Access Channel (RACH) parameters. The meter defines general parameters for one or more random access procedures (e.g. ,RACH-configGeneral), cell-specific parameters (e.g., RAC H-ConfigCommon), and / or dedicated parameters (e.g., RACH -configDedicated) may be included. broadcast one or more RRC messages to one or more UEs; One or more RRC messages may be UE specific. (e.g. in RRC_CONNECTED and / or RRC_INACTIVE states) Dedicated RRC message sent to the UE in VE state. The UE may Based on the RACH parameters, Msg1 1311 and / or Msg3 13 13 may determine time-frequency resources and / or uplink transmit power for transmission of Based on one or more RACH parameters, the UE sends Msg2 1312 and and Msg4 1314, and set the receive timing and downlink channel It can be determined.

[0168] The RACH parameter or parameters provided in the configuration message 1310 may be g1 One or more Physical RACH (PRACH) opportunities available for 1311 transmission One or more PRACH opportunities may be predefined. The multiple RACH parameters are one or more of the PRACH opportunities. It may indicate the available set (e.g., prach-ConfigIndex). The RACH parameters or parameters are determined by (a) one or more PRACH opportunities; and (b) One or more RACH parameters may indicate an association between one or more reference signals. The transmitter may include a signal generator that generates a signal based on (a) one or more preambles and (b) one or more reference signals. The one or more reference signals may indicate an association between the SS / PBCH block and / or For example, one or more RACH parameters may be PR Number of SS / PBCH blocks mapped to an ACH opportunity and / or SS / PB It may indicate the number of preambles mapped to the CH block.

[0169] Using one or more RACH parameters provided in the configuration message 1310 Determine the uplink transmit power of Msg1 1311 and / or Msg3 1313. For example, one or more RACH parameters may be set as the basis for the preamble transmission. Sub-power (e.g., received target power and / or initial power of preamble transmission) One or more RACH parameters may indicate one or more There may be a power offset. For example, one or more RACH parameters may be offset by a power Ramping step, power offset between SSB and CSI-RS, Msg1 131 Power offset between transmission of Msg1 and Msg3 1313 and / or preamble loop One or more RACH parameters may indicate a power offset value between the UE and the At least one reference signal (e.g., SSB and / or CSI-RS) and / or is an uplink carrier (e.g., a normal uplink (NUL) carrier and / or One or more thresholds for determining a complementary uplink (SUL) carrier. It can be shown.

[0170] Msg1 1311 indicates one or more preamble transmissions (e.g., An RRC message may include one or more preamble retransmissions. or multiple preamble groups (e.g., Group A and / or Group B). A preamble group can be used to configure one or more preambles. The UE may include a The UE may determine the preamble group based on one or more reference signals (e.g., Measure the RSRP of the SSB and / or CSI-RS and determine the RSRP threshold (e.g., rsrp-ThresholdSSB and / or rsrp-ThresholdCS The UE may determine at least one reference signal having an RSRP greater than the I-RS. For example, an association between one or more preambles and at least one reference signal may be When configured by an RRC message, one or more reference signals and / or selection signals Select at least one preamble associated with the selected preamble group. obtain.

[0171] The UE receives one or more RACH parameters provided in a configuration message 1310. For example, the UE may determine the preamble based on a path loss measurement, an RSRP measurement, , and / or the size of Msg3 1313. In another embodiment, the one or more RACH parameters may be the maximum number of preamble transmissions, and / or one or more preamble groups Indicate one or more thresholds for determining (e.g., group A and group B) The base station obtains one or more RACH parameters using the one or more RACH parameters. A preamble and one or more reference signals (e.g., SSB and / or CSI-RS ) ) . When the association is configured, the UE Based on this, a preamble may be determined to include in Msg1 1311. 1311 may be transmitted to the base station via one or more PRACH opportunities. For preamble selection and PRACH opportunity determination, one or more reference signals ( For example, SSB and / or CSI-RS may be used. parameters (e.g., ra-ssb-OccasionMskIndex and / or ra-OccasionList) is a list of PRACH occasions and one or more reference signals. It may show the association between.

[0172] If the UE does not receive a response after transmitting a preamble, it shall perform a preamble retransmission. The UE may increase the uplink transmit power for the preamble retransmission. The network-configured path loss measurements and / or target receive pre- The UE may select the initial preamble transmit power based on the preamble power. The UE may decide to retransmit the message and may ramp up the uplink transmit power. E is one or more RACH parameters indicating the ramping steps of the preamble retransmissions. receive a power ramp (for example, PREAMBLE_POWER_RAMPING_STEP) The ramping step is the amount of incremental increase in uplink transmit power for a retransmission. If the UE receives the same reference signal (e.g., SSB and / or When the UE determines the CSI-RS, the UE may ramp up the uplink transmit power. E can count the number of preamble transmissions and / or retransmissions (e.g., PR EAMBLE_TRANSMISSION_STATEER). The UE will The access procedure may, for example, determine the number of preamble transmissions depending on one or more RACH parameters ( For example, if the threshold value configured by It may be determined that the task has been completed without success.

[0173] The Msg2 1312 received by the UE may include the RAR. Msg2 1312 may include multiple RARs corresponding to multiple UEs. Msg1 1312 may be received after or in response to the transmission of Msg1 1311. 2 1312 is scheduled on DL-SCH and uses the random access RNTI (RA -RNTI) on the PDCCH. Msg2 1312 may indicate that the UE has received Msg3 1311 from the base station. A time alignment command, Msg3, that may be used to adjust the UE's transmission timing 1313, and / or a temporary cell RNTI (T After transmitting the preamble, the UE may receive the Msg2 1312 A time window for monitoring the PDCCH (e.g., ra-ResponseWindow) The UE may start the PRACH opportunity that the UE uses to transmit the preamble. For example, the UE may determine when to start the time window based on the preamble. After one or more symbols of the last symbol of the sequence (e.g., the end of the preamble transmission) A time window may start at the first PDCCH opportunity from the beginning of the next PDCCH period. The symbols can be determined based on the numerology. The PDCCH is determined by the RRC message. In a common search space (e.g., Type1-PDCCH common search space) The UE may identify the RAR based on the Radio Network Temporary Identifier (RNTI). The RNTI is used in response to one or more events that initiate a random access procedure. The UE may use a Random Access RNTI (RA-RNTI). The RNTI may be associated with a PRACH opportunity on which the UE transmits a preamble. For example, the UE may receive the OFDM symbol index, slot index, frequency domain, Based on the UL Carrier Indicator of the PRACH Opportunity, and / or the PRACH Opportunity An example of the RA-RNTI may be as follows: RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80 x8xul_carrier_id where s_id is the index of the first OFDM symbol of the PRACH opportunity. (e.g., 0≦s_id<14), and t_id is the PRACH may be the index of the first slot of the opportunity (e.g., 0≦t_id<80); f_id may be the index of the PRACH opportunity in the frequency domain (e.g. , 0≦f_id<8), ul_carrier_id is used for preamble transmission It can be a UL carrier (e.g., 0 for a NUL carrier, or 0 for a SUL carrier). 1). The UE may, in response to successful receipt of Msg2 1312 (e.g., Using the allocated resources, the user may then send Msg3 1313. Msg3 1313 may then For example, for contention resolution in the contention-based random access procedure shown in FIG. 13A, In some scenarios, multiple UEs may transmit the same preamble to the base station. The UE may receive the RAR and the base station may provide the UE with a corresponding RAR. If one interprets it as corresponding to itself, then a conflict may arise. (e.g., using Msg3 1313 and Msg4 1314) to indicate that the UE This may increase the likelihood that the identity of a particular UE will not be used by mistake. To do so, the UE may include a device identifier (e.g., In this case, the C-RNTI, the TC-RNTI contained in Msg2 1312, and / or any The identifier may include the name, address, or other suitable identifier of interest.

[0174] Msg4 1314 is received after or in response to the transmission of Msg3 1313. If the C-RNTI is included in Msg3 1313, the base station I is used to address the UE on the PDCCH. The UE's unique C-RNTI is used on the PDCCH. If detected, the random access procedure is determined to be successfully completed. If TI is included in Msg3 1313 (e.g., the UE is in RRC_IDLE state) or otherwise not connected to a base station), Msg4 1314 The MAC PDU is received using the DL-SCH associated with the C-RNTI. It is always decoded and the MAC PDU is sent in Msg3 1313 (e.g. The CCCH SDUs are matched with the corresponding UE Contention Resolution Identity (CCCH SDUs) or otherwise If the UE receives the CE and the UE receives the CE, the UE can determine that the contention resolution was successful. and / or the UE may determine that the random access procedure has been successfully completed.

[0175] The UE shall transmit the complementary uplink (SUL) carrier and the normal uplink (NUL) carrier. The initial access (e.g., random access procedure) can be configured on the uplink For example, the base station may support two separate RACH configurations: One UE may be configured for the SUL carrier and one for the NUL carrier. For random access in a cell consisting of UL carriers, the network must decide which The UE may indicate, for example, whether it will use one or multiple carriers (NUL or SUL). If the measured quality of the reference signal is lower than the broadcast threshold, the SUL carrier is selected. A random access procedure (e.g., Msg1 1311 and / or Msg3 The uplink transmission of the UE 1313 can remain on the selected carrier. In one or more cases, a random access procedure (e.g., Msg1 131 The uplink carrier can be switched during Msg3 (between Msg1 and Msg3 1313). Example For example, the UE may decide to use Ms Determines the uplink carrier for Msg1 1311 and / or Msg3 1313 and / or switch.

[0176] FIG. 13B shows a two-step contention-free random access procedure. Similar to the four-step contention-based random access procedure described above, the base station must first A configuration message 1320 may be sent to the UE. 13B is a diagram of a configuration message that may be similar in some respects to the Msg1 1321 message. This includes sending two messages: Msg1 1321 and Msg2 1322. Msg2 1322 is in some respects similar to Msg1 131 shown in FIG. 13A, 1 and Msg2 1312. As can be seen from Figures 13A and 13B , the contention-free random access procedure is Msg3 1313 and / or Msg4 1 It cannot contain messages similar to 314.

[0177] The contention-free random access procedure shown in FIG. 13B can be used for beam fault recovery, other SI requests, It may be initiated for SCell addition and / or handover. For example, may indicate or assign to the UE the preamble to be used for Msg1 1321 The UE receives a preamble (e.g. , ra-PreambleIndex).

[0178] After transmitting the preamble, the UE monitors the PDCCH for RAR in a time window ( For example, a ra-ResponseWindow may be started. In this case, the base station sends an RRC message (e.g., recoverySearchSpaceI d) Separate time windows and / or separate PDCCs within the search space shown by The UE may configure H with the Cell RNTI (C-RNTI) in the search space. In the contention-free random access procedure shown in FIG. 13B, After sending Msg1 1321 and receiving the corresponding Msg2 1322, the UE , or in response thereto, the UE may determine that the random access procedure has been successfully completed. For example, when a PDCCH transmission is addressed to the C-RNTI, random access is performed. The UE may determine that the random access procedure is completed successfully. The UE receives an RA including a preamble identifier corresponding to a preamble transmitted by the UE. If R is received and / or RAR is received, the MAC sub-PD If the SI request contains a ACK, the UE may determine that the response was successful. It can be determined as an index.

[0179] FIG. 13C shows another two-step random access procedure. Similar to the random access procedure described in the present specification, the base station must send a configuration message 13 before the start of the procedure. The configuration message 1330 may be sent to the UE. 13C may be similar in some respects to the .0 and / or configuration message 1320. Sending two messages, namely Msg A 1331 and Msg B 1332 Includes.

[0180] Msg A 1331 may be transmitted in an uplink transmission by the UE. 1331 includes one or more transmission and / or transposon of a preamble 1341. A transport block 1342 may include one or more transmissions of the transport block 1342. 42 is similar and / or equivalent to the content of Msg3 1313 shown in FIG. 13A The transport block 1342 may include UCI (e.g., SR, HARQ The UE may receive Msg A, Msg B , Msg C , Msg D , Msg E , Msg F ... After or in response to transmission of 1331, Msg B 1332 may be received. Msg B 1332 is similar to Msg 2 1312 (e.g., For example, RAR), and / or similar to the contents of Msg4 1314 shown in FIG. 13A. and / or equivalent content.

[0181] The UE may use licensed and / or unlicensed spectrum. The UE can then initiate the two-step random access procedure of FIG. 13C to the , whether to initiate a two-step random access procedure based on one or more factors. One or more factors may determine whether or not a wireless network is in use, such as the wireless access technology (e.g., LTE). , NR, and / or the like), whether the UE has a valid TA, cell size ,the UE’s RRC state, the type of spectrum (e.g., licensed vs. unlicensed), not provided), and / or any other suitable factors.

[0182] The UE determines the RACH based on the two-step RACH parameters included in the configuration message 1330. In this case, the transposon included in the preamble 1341 and / or Msg A 1331 Determine radio resources and / or uplink transmit power for the port block 1342. The RACH parameters include the modulation and coding scheme (MCS), time-frequency link, Source, and / or Preamble 1341 and / or Transport Block 1 342. Time-frequency resources and transport blocks 1342 for signaling (e.g., PUS The time-frequency resources for transmission of the CHs may be divided into FDM, TDM, and / or CDM. The RACH parameters can be multiplexed using the UE's monitoring of Msg B 1332. determining reception timing and downlink channels for viewing and / or receiving; This may enable the following:

[0183] The transport block 1342 is used to transport data (e.g., delay-sensitive data), Identifiers, security information, and / or device information (e.g., Internet Mobile Subscriber Identity (IMSI) The base station may send Msg B 1332 in response to Msg A 1331. Msg B 1332 contains the preamble identifier, timing advance command, commands, power control commands, uplink grants (e.g., radio resource allocation and / or is the MCS), UE identifier for contention resolution, and / or RNTI (e.g., C-RN The UE may include at least one of Msg B The preamble identifier of 1332 matches the preamble transmitted by the UE, and / or the UE identifier of Msg B 1332 is the UE identifier of Msg A 1331 ( For example, if it matches the transport block 1342, the 2-step random access It may be determined that the access procedure has been completed successfully.

[0184] The UE and the base station may exchange control signaling. The control signaling may include L1 / L 2 control signaling, which may be referred to as PHY layer (e.g., Layer 1) and / or MAC The control signaling may originate from a layer (e.g., layer 2). downlink control signaling and / or uplink control signaling transmitted from the UE to the base station It may include control signaling.

[0185] Downlink control signaling is used to assign downlink scheduling, uplink uplink schedule indicating uplink radio resources and / or transport formats Permissions, slot format information, preemption indication, power control commands The UE may include a physical downlink, Downlink Control Channel (PDCCH) in the payload transmitted by the base station The payload transmitted on the PDCCH can receive downlink control signaling. In some scenarios, the PDCCH may be referred to as Data Link Control Information (DCI). It may be a Group Common PDCCH (GC-PDCCH) that is common to a group.

[0186] The base station may use one or more cyclic redundancy checks (CRCs) to facilitate detection of transmission errors. A parity bit (RC) may be attached to the DCI. The DCI is sent to the UE (or group of UEs). If the UE is intended for The CRC parity bits may be scrambled. The identifier may be used to scramble the CRC parity bits. Crambling is the modulo-2 addition of the identifier value and the CRC parity bits ( The identifier may include a 16-bit value of the wireless network It may also include a Temporary Identifier (RNTI).

[0187] The DCI can be used for different purposes: to scramble the CRC parity bits, This can be indicated by the type of RNTI used to receive the Paging RNT The DCI with CRC parity bits scrambled with I(P-RNTI) is P-RNTI may indicate a pinging information and / or a system information change notification. In the System Information RNTI (SI-RNTI), The DCI with scrambled CRC parity bits is used for broadcasting system information. The SI-RNTI is predefined as "FFFE" in hexadecimal. The CRC parity scrambled with the random access RNTI (RA-RNTI) can be used. A DCI with a T bit may indicate a random access response (RAR). The DCI with CRC parity bits scrambled with I(C-RNTI) is dynamically Scheduled unicast transmission and / or random access of PDCCH order The CRC packet scrambled with the Temporary Cell RNTI (TC-RNTI) may indicate a trigger. A DCI with a contention resolution bit may indicate contention resolution (e.g., the Ms g3 (Msg3 similar to 1313). Other RNTIs configured in the UE by the base station. The encoding is Configured Scheduling RNTI (CS-RNTI) , Transmit Power Control-PUCCH RNTI(TPC-P UCCH-RNTI), Transmit Power Control-PUSCH RNTI(TPC-PUSCH-RNTI), Transmit Power Cont rol-SRS RNTI(TPC-SRS-RNTI), Interruption RNTI(INT-RNTI), Slot Format Indication RN TI(SFI-RNTI), Semi-Persistent CSI RNTI(SP -CSI-RNTI), Modulation and Coding Scheme Cell RNTI (MCS-C-RNTI), and / or similar.

[0188] Depending on the purpose and / or content of the DCI, the base station may transmit one or more DCI forms. For example, DCI format 0_0 can be used to transmit DCI in the PUSC H scheduling. DCI format 0_0 is the fallback DC DCI can be in I format (e.g., with a compact DCI payload). Format 0_1 ​​may be used for scheduling PUSCH in a cell (e.g. , which has more DCI payload than DCI format 0_0). Bit 1_0 can be used for scheduling PDSCH within a cell. DCI_1_0 can be a fallback DCI format (e.g., compact DCI DCI format 1_1 is used for scheduling PDSCH in a cell. can be used for ringing (e.g., more DCI payloads than DCI format 1_0). DCI format 2_0 specifies the slot format for a group of UEs. DCI format 2_1 can be used to provide an indication of the The physical resource blocks and / or OFDM symbols that are not intended for use in DCI format 2_2 can be used to notify the PUCCH Or it can be used to transmit transmit power control (TPC) commands for the PUSCH. Format 2_3 is a group of TPC commands for SRS transmission by one or more UEs. The new DCI format will be defined in a future release. The DCI formats may have different DCI sizes or may have the same DCI size. may be shared.

[0189] After scrambling the DCI with the RNTI, the base station performs channel coding (e.g., polarity coding). D using rate matching, scrambling and / or QPSK modulation The base station may process the CI. The coded and modulated DCI may be mapped onto the payload elements. Based on the size and / or coverage of the base station, the base station may select several continuous control channels. DCI may be transmitted via a PDCCH occupying consecutive channel elements (CCEs). The number of entries (called aggregation levels) can be 1, 2, 4, 8, 16, and / or any other appropriate The CCE may specify the number of resource-element groups (REGs) (e.g., 6). A REG may include a resource block within an OFDM symbol. The mapping of the coded and modulated DCI onto the source elements is based on the mapping of CCEs and REGs. It may be based on ping (eg, CCE to REG mapping).

[0190] FIG. 14A shows an example of a CORESET configuration for a bandwidth portion. or transmit DCI via PDCCH on multiple control resource sets (CORESET). CORESET allows the UE to decode the DCI using one or more search spaces. The base station may include a time-frequency resource to be integrated in the time-frequency domain. In the embodiment of FIG. 14A, a first CORESET 140 The first and second CORESETs 1402 occur at the first symbol in a slot. The first CORESET1401 is connected to the second CORESET1402 in the frequency domain. The third CORESET 1403 occurs on the third symbol in the slot. The fourth CORESET 1404 occurs at the seventh symbol of the slot. The ET may have a different number of resource blocks in the frequency domain.

[0191] FIG. 14B shows the CCE-R for DCI transmission on CORESET and PDCCH processing. An example of EG mapping is shown below. CCE to REG mapping is an interleave mapping. Interleaved mapping (e.g., to provide frequency diversity) or non-interleaved mapping (e.g., For example, for the purposes of facilitating interference coordination and / or frequency selective transmission of control channels. The base station may assign different or the same CCE-REG mappings on different CORESETs. The CORESET is associated with the CCE-REG mapping by the RRC configuration. CORESET may be used to measure the antenna port quasi-co-location (QCL) parameters. The QCL parameters of the antenna ports can be configured in the PDCC It may indicate the QCL information of the demodulation reference signal (DMRS) for H reception.

[0192] The base station selects one or more CORESETs and one or more search space sets. An RRC message containing the configuration parameters may be sent to the UE. The metric may indicate an association between the search space set and the CORESET. It may include a set of PDCCH candidates formed by the CCEs at a given aggregation level. The configuration parameters are the number of PDCCH candidates monitored per aggregation level, the PDCCH monitoring Periodicity and PDCCH monitoring pattern, one or more DCIs monitored by the UE The format and / or search space set may be a common search space set or a UE specific A set of CCEs in a common search space set may be A set of CCEs in a UE-specific search space set that may be predefined and known to the UE. may be configured based on the UE's identity (e.g., the C-RNTI).

[0193] As shown in FIG. 14B, the UE determines the time of CORESET based on the RRC message. The UE may determine the frequency resource based on the configuration parameters of CORESET. CCE~REG mapping for CORESET (e.g., interleaved or non-interleaved) The UE may determine the RRC Based on the message, the number of search space sets that are constructed on the CORESET (e.g., the maximum The UE can determine the maximum number of PDCs according to the configuration parameters of the search space set. The UE may monitor a set of candidate CHs to detect one or more DCIs. The PDCCH candidate set may be monitored in a plurality of CORESETs. One or more PDCCHs in the set of PDCCH candidates according to the DCI format specified The monitoring may include decoding possible (or configured) PDCCH candidates. Position, possible (or configured) PDCCH formats (e.g. in a common search space) number of CCEs in the UE, number of PDCCH candidates, and / or PDs in the UE-specific search space number of CCH candidates), and one with possible (or configured) DCI formats Or, the decoding may include decoding DCI content of a plurality of PDCCH candidates. This may be called Indo decoding. The UE performs a CRC check (e.g., on the RNTI value). In response to the DCI scrambling bit against the CRC parity bit of the matching DCI, the UE The UE may determine the valid DCI for the selected UE based on the information contained in the DCI (e.g., schedule allocation, uplink grant, power control, slot format display, downlink The NIC may handle a variety of different functions, including network preemption, and / or the like.

[0194] The UE receives uplink control signaling (e.g., uplink control information (UCI)) The uplink control signaling may be transmitted to the base station in response to a received DL-SCH transaction. may include Hybrid Automatic Repeat Request (HARQ) acknowledgments for the support blocks. After receiving the DL-SCH transport block, the UE sends a HARQ acknowledgement. The uplink control signaling may be used to inform the channel quality of the physical downlink channel. The UE may include channel state information (CSI) indicative of the CSI. The UE may transmit the CSI to the base station. The base station determines the transmission format parameters for the downlink transmission based on the received CSI. The antennas may be used to determine the desired beamforming schemes (e.g., including multiple antennas and beamforming schemes). The uplink control signaling may include a scheduling request (SR). , the UE may transmit an SR indicating that uplink data is available to be transmitted to the base station. Physical uplink control channel (PUCCH) or physical uplink shared channel (P UCI (e.g., HARQ acknowledgement (HARQ-ACK), CSI) is transmitted via the USCH. The UE may transmit several PUCCH formats. , may be used to transmit uplink control signaling over the PUCCH.

[0195] There are five possible PUCCH formats, and the UE determines the size of the UCI (e.g., The PUCCH format is based on the number of uplink symbols and the number of UCI bits. PUCCH format 0 can determine the number of OFDM symbols per PUCCH. The UE may have a length of 1 and may contain up to 2 bits. The number of HARQ-ACK information bits that exceed the SR symbol and have a positive or negative SR (HA RQ-ACK / SR bit) is one or two, PUCCH format 0 The UCI can be transmitted on the PUCCH resource using the PUCCH format. Bit 1 may occupy between 4 and 14 OFDM symbols and may contain 2 or fewer bits. The UE may also determine whether the transmission is more than four symbols and whether the HARQ-ACK / SR bit is If the number is one or two, PUCCH format 1 may be used. Format 2 may occupy one or two OFDM symbols and contain more than 2 bits. The UE may transmit the UCI bit count to 2 if the transmission exceeds one or two symbols. If so, PUCCH format 2 may be used. PUCCH format 3 is , may occupy between 4 and 14 OFDM symbols and may contain more than 2 bits. The UE transmits four or more symbols, the number of UCI bits is two or more, and the PUC If the CH resource does not contain an orthogonal cover code, PUCCH format 3 may be used. PUCCH format 4 may occupy between 4 and 14 OFDM symbols. The UE shall determine whether the transmission is four or more symbols and whether the UCI bit is greater than one. If the number of PUCCH resources is two or more and the PUCCH resource contains an orthogonal cover code, H format 4 may be used.

[0196] The base station may, for example, use an RRC message to determine the number of PUCCH resource sets. The configuration parameters may be transmitted to the UE. A PUCCH resource set (a set of four) can be configured on the uplink BWP of a cell. The set includes a PUCCH resource set index, a PUCCH resource identifier (e.g., A PUCCH resource is identified by the PUCCH-Resourceid. number of PUCCH resources and / or the UE may use multiple PUCCH resources in the PUCCH resource set. The number of UCI information bits that can be transmitted using one of the PUCCH resources. (e.g., the maximum number). In the case of multiple PUCCH resource sets, The UE receives UCI information bits (e.g., HARQ-ACK, SR, and / or CSI) , and may select one of a plurality of PUCCH resource sets based on the total bit length of If the total bit length of the UCI information bits is less than or equal to 2, the UE shall The PUCCH resource set may select the first PUCCH resource set whose index is equal to "0". If the total bit length of the CI information bits is greater than 2 and less than or equal to the first configured value, the UE a second PUCCH resource set with a PUCCH resource set index equal to "1"; The total bit length of the UCI information bits can be set to the first set. If the PUCCH count is greater than the first configured value and less than or equal to the second configured value, the UE shall set the PUCCH count equal to "2". A third PUCCH resource set having a resource set index may be selected. If the total bit length of the UCI information bits is greater than the second set value and the third value (e.g. For example, if the PUCCH resource set index is less than or equal to 1406, the UE shall set the PUCCH resource set index equal to "3". In the example, a fourth PUCCH resource set having an index of 1 may be selected.

[0197] After determining the PUCCH resource set from the multiple PUCCH resource sets, the UE , PUCCH resources for UCI (HARQ-ACK, CSI, and / or SR) transmission The UE may determine the PUCCH resource from the DCCH received on the PDCCH. PUCC in I (for example, DCI format 1_0 or DCI format 1_1) Based on the H resource indicator, the PUCCH resource may be determined. The PUCCH resource set indicator indicates the eight PUCCHs in the PUCCH resource set. Based on the PUCCH resource indicator, the UE , the PUCCH resource indicated by the PUCCH resource indicator in the DCI is It can be used to transmit UCI (HARQ-ACK, CSI and / or SR). Cut.

[0198] FIG. 15 illustrates a wireless device 1502 communicating with a base station 1504 in accordance with an embodiment of the disclosure. In the embodiment shown in FIG. The communication network 100, the mobile communication network 150 shown in FIG. 1B, or It may be part of a mobile communication network such as another communication network. Only one wireless device 1502 and one base station 1504 are shown. The communication network may include multiple U-bands having the same or similar configuration as that shown in FIG. It will be appreciated that the base station may include a base station E and / or multiple base stations.

[0199] The base station 1504 connects the wireless device 1502 to the air interface (or wireless 1506 to a core network (not shown) via wireless communication. Communication from base station 1504 to wireless device 1502 over air interface 1506. The receive direction is known as the downlink and is transmitted over the air interface by wireless device 1502. The direction of communication from the base station 1504 to the base station 1504 is known as the uplink. Using some combination of FDD, TDD, and / or two duplex technologies , may be separated from the uplink transmission.

[0200] In the downlink, data transmitted from the base station 1504 to the wireless device 1502 is The data may be provided to the processing system 1508 of the base station 1504. In the uplink, the wireless device Data transmitted from 1502 to the base station 1504 is passed to the processing system of the wireless device 1502. The processing system 1508 and the processing system 1518 may be provided to the layer 3 and layer 2 OSI functions to process the data for transmission. Layer 2 may include, for example, 2A, 2B, 3, and 4A, the SDAP layer, the PDCP layer, the RLC layer, and MAC layers. Layer 3 may include the RRC layer with respect to FIG. 2B.

[0201] After being processed by the processing system 1508, the data is transmitted to the wireless device 1502. The data may be provided to a transmit processing system 1510 of the base station 1504. After being processed by the wireless device 1518, the data transmitted to the base station 1504 is The transmission processing system 1510 and the The transmit processing system 1520 may implement OSI functions of Layer 1. Layer 1 is shown in FIGS. 3 and 4A. For transmit processing, the PHY layer may include, for example: For example, forward error correction coding, interleaving, rate mapping of the transport channel mapping of transport channels to physical channels; modulation of physical channels; Multiple-input multiple-output (MIMO) or multi-antenna processing, and / or the like It can be done.

[0202] At the base station 1504, a receive processing system 1512 receives uplink signals from the wireless device 1502. In the wireless device 1502, the receive processing system 1522 may receive a base station The receiver 1512 and the receiver 1514 may receive downlink transmissions from the station 1504. The management system 1522 may implement OSI functions of Layer 1. Layer 1 is shown in FIGS. 2A, 2B, and 3. , and a PHY layer with respect to FIG. 4A. For receive processing, the PHY layer may include, for example, Error detection, forward error correction decoding, deinterleaving, transposition to physical channel Demapping of the wireless channel, demodulation of the physical channel, MIMO or multi-antenna processing , and / or the like.

[0203] As shown in FIG. 15, a wireless device 1502 and a base station 1504 may include multiple antennas. The multiple antennas may include spatial multiplexing (e.g., single-user MIMO or multiple One of the following: MIMO, transmit / receive diversity, and / or beamforming Alternatively, it may be used to implement multiple MIMO or multi-antenna technologies. In an example, the wireless device 1502 and / or the base station 1504 may have a single antenna. possible.

[0204] The processing system 1508 and the processing system 1518 each include a memory 1514 and and memory 1524. (e.g., one or more non-transitory computer-readable media) may be any of the media discussed in this application. or to perform multiple functions, the processing system 1508 and / or the processing system 1518. Although not shown in FIG. 15, the transmission processing system 1510 and the transmission processing system 1520 , the receiving processing system 1512, and / or the receiving processing system 1522 may Each of the functions may be performed by a computer program. Memory for storing program instructions or code (e.g., one or more non-transitory computer programs) The present invention may be coupled to a computer-readable medium.

[0205] The processing system 1508 and / or the processing system 1518 may include one or more The system may include one or more controllers and / or one or more processors. The number of controllers and / or one or more processors may be, for example, general purpose processors. Digital Signal Processors (DSPs), Microcontrollers, Application Specific Application-Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) and / or or other programmable logic devices, discrete gates and / or Transistor logic, discrete hardware components, on-board unit The processing system 1508 and / or the processing unit 1506 may include a processing unit, ... Alternatively, the processing system 1518 may perform signal coding / processing, data processing, power control, input / output processing, etc. and / or that the wireless device 1502 and the base station 1504 operate in a wireless environment. and any other functions that may enable the

[0206] Processing system 1508 and / or processing system 1518 each include one or A plurality of peripheral devices 1516 and one or more peripheral devices 1526 may be connected. or a plurality of peripheral devices 1516 and one or more peripheral devices 1526 may have features and / or software and / or hardware providing the functionality, e.g. speakers, Microphone, keypad, display, touchpad, power supply, satellite transceiver, universal USB port, hands-free headset, frequency modulation (FM) radio unit, media player, internet browser, electronic control unit (e.g. for a vehicle), and / or one or more sensors (e.g., accelerometers, gyroscopic group, temperature sensor, radar sensor, lidar sensor, ultrasonic sensor, light sensor The processing system 1508 and and / or the processing system 1518 may include one or more peripheral devices 1516 and / or Receive user input data from one or more peripheral devices 1526 and / or The processing system 1518 in the wireless device 1502 may provide power and / or other components within the wireless device 1502. The power source may be configured to distribute power to one or more power sources, For example, it may include a battery, a solar cell, a fuel cell, or any combination thereof. The processing system 1508 and / or the processing system 1518 may each The GPS chip may be connected to the chipset 1517 and the GPS chipset 1527. The GPS chipset 1517 and the GPS chipset 1527 are connected to the wireless device 1502. and may be configured to provide geographic location information of the base station 1504.

[0207] FIG. 16A shows an example structure for uplink transmission. The baseband signal representative of a channel can perform one or more functions. This function or functions may include scrambling, scaling to generate complex-valued symbols. Modulation of the crumble bits, mapping of complex-valued modulation symbols onto one or several transmission layers mapping, transformation precoding to generate complex-valued symbols, complex-valued symbols Precoding of complex-valued symbols, mapping of precoded complex-valued symbols to resource elements Ping, Complex-valued Time-Domain Single Carrier Frequency Division Multiple Access (SC-FDMA) or generation of CP-OFDM signals to the antenna ports, and / or at least In one embodiment, when transform precoding is enabled, In one embodiment, a SC-FDMA signal for uplink transmission may be generated. If precoding is not enabled, the C for uplink transmission is A P-OFDM signal can be generated. These functions are shown as examples: It is anticipated that other mechanisms may be implemented in various embodiments.

[0208] FIG. 16B illustrates the modulation and upconversion of a baseband signal to a carrier frequency. 4 shows an example structure for the baseband signal, SC-FDMA or CP-OFDM baseband signals and / or complex-valued physical It can be a random access channel (PRACH) baseband signal. Filter before transmission A ring may be used.

[0209] FIG. 16C illustrates an exemplary structure of a downlink transmission. The baseband signal can perform one or more functions. is the scrambling of the coded bits in a codeword to be transmitted on a physical channel. Ring, Modulation of scrambled bits to generate complex-valued modulation symbols, Complex Mapping of numerical modulation symbols onto one or several transmission layers, on antenna ports Precoding of complex-valued modulation symbols on layers for transmission of antenna ports Mapping of complex-valued modulation symbols to resource elements, complex-valued time per antenna port These may include the generation of a multi-domain OFDM signal, and / or the like. The functionality is provided as an example and other mechanisms may be implemented in different embodiments. It is expected that this can be done.

[0210] FIG. 16D illustrates the modulation and upconversion of a baseband signal to a carrier frequency. 4 shows another example structure for the baseband signal. It may be a single-bit OFDM baseband signal. Filtering may be used before transmission. do.

[0211] The wireless device may be configured with multiple cells (e.g., a primary cell, a secondary cell). The base station transmits one or more messages (e.g., RRC messages) including the parameters. The wireless device may receive signals from at least one base station (e.g., For example, two or more base stations in a dual connection may communicate one or more messages (e.g. For example, as part of the configuration parameters, the physical, MA C, RLC, PCDP, SDAP, and RRC layer parameters. The configuration parameters are the parameters for configuring the physical and MAC layer channels, bearers, etc. For example, the configuration parameters may include the physical layer, the MAC layer, the RLC layer, the PCD Parameters indicating timer values ​​for the P layer, SDAP layer, RRC layer, and / or communication channels. It may also include a meter.

[0212] When a timer is started, it begins execution and continues until it is stopped or expires. A timer can be started if it is not running, or restarted if it is running. A timer may be associated with a value (e.g., a timer is started at a certain value). (It may be restarted or may start from zero and expire when the value is reached). The duration of the timer is determined by whether the timer is stopped (for example, by BWP switching) or A timer cannot be updated until it expires. A timer is used to measure the duration / window of a process. This specification describes implementations and procedures related to one or more timers. It will be appreciated that there are multiple ways to implement one or more timers. For example, one or more of the methods for implementing a timer may be It will be appreciated that the time may be used to measure the time / window. For example, The access response window timer specifies the window time for receiving a random access response. In one embodiment, the random access response window timer Instead of the start and expiration of a timer, the time difference between two timestamps can be used. When the process is restarted, the process for measuring the time window may be restarted. Implementations may be provided to restart the measurement of the time window.

[0213] The gNB may transmit one or more MAC PDUs to the wireless device. In one embodiment, the MAC PDUs are byte-aligned in length (e.g., a multiple of 8 bits). In one embodiment, the bit string is a string in which the most significant bit is the The least significant bit is the leftmost bit of the first row of the table, and the least significant bit is the rightmost bit of the last row of the table. More generally, a bit string can be represented by a table that is In one embodiment, the MAC PDUs are read in row read order. The bit order of the parameter field in is most significant bit first in the leftmost bit, and The rightmost bit is represented by the last least significant bit.

[0214] In one embodiment, the MAC SDUs are byte-aligned in length (e.g., multiples of 8 bits). ) bit string. In one embodiment, the MAC SDU is In one embodiment, the MAC CE may be included in a MAC PDU that is byte-aligned in length. It may be a bit string (e.g., a multiple of 8 bits). The header is a bit string whose length is byte-aligned (i.e., a multiple of 8 bits). In one embodiment, the MAC subheader includes a corresponding MAC SDU, a MAC CE, or just before the padding. The values ​​of the reserved bits in the PDU can be ignored.

[0215] In one embodiment, a MAC PDU may include one or more MAC sub-PDUs. The MAC sub-PDU of one or more MAC sub-PDUs contains the MAC sub-header (including padding), MAC subheader and MAC SDU, MAC subheader and MAC CE, and / or MAC subheader and padding. The size of the MAC SDU can be variable. The MAC subheader , MAC CE, or padding.

[0216] In one embodiment, the MAC subheader may include a MAC SDU, a variable size MAC CE, or If padding is supported, the MAC subheader consists of a 1-bit long R field, a 1-bit long A multi-bit long F field, a multi-bit long LCID field, and / or a multi-bit long LCID field. It may contain an L field of bit length.

[0217] FIG. 17A shows the R field, the F field, the LCID field, and the L field. 17A shows an example of a MAC subheader having the following structure: The LCID field may be 6 bits long and the L field may be 8 bits long. FIG. 17B shows an R field, an F field, an LCID field, and an L FIG. 17B illustrates an example of a MAC subheader with fields. In the header, the LCID field can be 6 bits long, and the L field can be 16. The MAC subheader can be a fixed size MAC CE or padding. When multi-bit encapsulation is supported, the MAC subheader is made up of a 2-bit R field and a multi-bit FIG. 17C shows an R field and an LCID field. 17C shows an example of a MAC subheader including a field. In this case, the LCID field can be 6 bits long and the R field can be 2 bits long. It may be of length.

[0218] FIG. 18A shows an example of a DL MAC PDU. Multiple MAC CEs can be collocated. MAC sub-PD containing MAC CEs U is any MAC sub-PDU containing a MAC SDU or a MAC sub-PDU containing padding. FIG. 18B shows an example of a UL MAC PDU. Multiple MAC CEs, such as MAC CE 1 and 2, may be collocated. The MAC sub-PDU containing the MAC CE is the same as all the MAC sub-PDUs containing the MAC SDU. Furthermore, the MAC sub-PDU can be placed after the MAC sub-PDU including the padding. It can be placed in front of the PDU.

[0219] In one embodiment, the MAC entity of the gNB may 19 shows a block diagram of a line device that can be used to transmit a QoS request to a MAC entity of the line device. 1 illustrates an example of multiple LCIDs that may be associated with a MAC CE. C CE, SP ZP CSI-RS resource set activation / deactivation MAC CE, PUC CH spatial relationship start / stop MAC CE, SP SRS start / stop MAC CE, PUCC SP CSI report for H Start / stop MAC CE, TC of UE-specific PDCCH I status indication MAC CE, UE specific PDSCH TCI status indication MAC CE, aperiodic CSI trigger state subselection MAC CE, SP CSI-RS / CSI-I M resource set activation / deactivation MAC CE, UE contention resolution identity MAC CE , Timing Advance Command MAC CE, DRX Command MAC CE, Long D RX command MAC CE, SCell start / stop MAC CE (1 octet), SC ell Start / Stop MAC CE (4 octets) and / or Duplicate Start / Stop MAC In one embodiment, the MAC entity of the gNB The MAC CE is sent to the MAC entity of the wireless device. , the MAC subheader corresponding to the MAC CE may have an LCID. The MAC CE may have a different LCID in the MAC subheader corresponding to the MAC CE. For example, the LCID given by 111011 in the MAC subheader is The MAC CE associated with the subheader is a Long DRX command MAC CE It can be shown that.

[0220] In one embodiment, the MAC entity of the wireless device includes one or more MAC CEs. 20 may be transmitted to the MAC entity of the gNB. 1 illustrates an embodiment of a MAC CE. One or more MAC CEs may be in a short buffer state. Reporting (BSR) MAC CE, Long BSR MAC CE, C-RNTI MAC C E, configured authorization confirmation MAC CE, single entry PHR MAC CE, multiple entries Tree PHR MAC CE, Short Block BSR, and / or Long Block BSR In one embodiment, the MAC CE may include at least one of A different MAC CE can have an LCID in the MAC subheader that corresponds to the MA. A MAC subheader corresponding to a C CE may have a different LCID. The LCID given by 111011 in the subheader is associated with the MAC subheader. It may indicate that the MAC CE being sent is a short cut command MAC CE.

[0221] In Carrier Aggregation (CA), two or more Component Carriers (CCs) may be aggregated. Using CA technology, a wireless device can receive one or more A wireless device may receive or transmit on multiple CCs simultaneously. CCs may support CA for C and / or non-adjacent CCs. CCs are organized into cells. For example, a CC can have one primary cell (PCell) and one or more secondary cells. When configured with CA, the wireless device A mobile station may have one RRC connection with the network. RRC connection establishment / re-establishment / handover During RRC connection, the cell providing the NAS mobility information may be the serving cell. During the connection re-establishment / handover procedure, the cell providing the security input is the serving cell. In one embodiment, the serving cell may indicate a PCell. The NB may then determine the configuration parameters of one or more SCells depending on the capabilities of the wireless device. The wireless device may then transmit one or more messages including the

[0222] When configured with CA, the base station and / or wireless device may Uses SCell startup / shutdown mechanism to improve battery or power consumption When a wireless device is configured with one or more SCells, the gNB or at least one of the multiple SCells can be activated or deactivated. During SCell configuration, the SCell state associated with the SCell is set to "Active". The SCell may be stopped unless the SCell is set to "enabled" or "suspended".

[0223] In response to receiving the SCell activation / deactivation MAC CE, the wireless device In one embodiment, the gNB can enable / disable the SC One that contains a ell timer (e.g., sCellDeactivationTimer) Or multiple messages may be transmitted. The SCell may be deactivated in response to expiration of the mer.

[0224] When the wireless device receives a SCell activation / deactivation MAC CE to activate the SCell In response to the activation of the SCell, the wireless device may activate the SCell. The device transmits SRS on the SCell, and transmits CQI / PMI / RI / CRI report, PDCCH monitoring on SCell, PDCCH monitoring for SCell , and / or may perform operations including transmitting a PUCCH on the SCell. In response to the initiation, the wireless device Starts or restarts a timer (e.g., sCellDeactivationTimer). The wireless device receives the SCell activation / deactivation MAC CE that activates the SCell. Once this is done, the first SCell timer in the slot may be started or restarted. In response to the activation of the SCell, the wireless device One or more suspended configurations of configured permission type 1 associated with the SCell. An already completed uplink grant can be (re)initialized. In response to the activation, the wireless device may trigger a PHR.

[0225] SCell Activation / Deactivation MAC CE, where the wireless device deactivates an activated SCell Upon receiving the SCell, the wireless device may deactivate the activated SCell. The first SCell timer associated with the SCell When the activationTimer expires, the wireless device In response to the deactivation of the activated SCell, the wireless device may deactivate the activated SCell. The first SCell timer associated with the activated SCell may be stopped. In an embodiment, in response to deactivation of an activated SCell, the wireless device One or more of the configured uplink grant types 2 associated to the enabled SCell may include a plurality of configured downlink assignments and / or one or more configured uplink assignments. In one embodiment, in response to deactivation of an activated SCell, the link grant may be cleared. The wireless device then uses the configured upgrade associated with the activated SCell. may suspend one or more configured uplink grants of link grant type 1; and and / or flushing the HARQ buffers associated with the activated SCell. possible.

[0226] When the SCell is deactivated, the wireless device transmits an SRS on the SCell; Reporting CQI / PMI / RI / CRI of SCell, UL-SC on SCell H on the SCell, RACH on the SCell, and monitoring one first PDCCH, at least one second PDCC H and / or transmitting a PUCCH on the SCell. At least one first PDCC on the activated SCell may not perform the operation. When H indicates an uplink grant or downlink assignment, the wireless device is woken up. The first SCell timer associated with the SCell (e.g., sCellDeac In one embodiment, the activated SCell may be restarted. The scheduling serving cell (e.g., using PCell or PUCCH) At least one second SCell (i.e., PUCCH SCell) The PDCCH of the activated SCell is an uplink grant or downlink allocation If the wireless device indicates A timer (eg, sCellDeactivationTimer) may be restarted. In one embodiment, when a SCell is deactivated, any random access procedures ongoing on the SCell are If there is an order, the wireless device may abort an ongoing random access procedure on the SCell. do.

[0227] FIG. 21A shows an example of a 1-octet SCell Activation / Deactivation MAC CE. A first MAC address having an LCID of 111010 (e.g., “111010” as shown in FIG. 19 ) The PDU subheader identifies the SCell activation / deactivation MAC CE with one octet The size of the SCell activation / deactivation MAC CE of 1 octet is constant. The 1-octet SCell Activation / Deactivation MAC CE contains a single octet. A single octet may consist of a first number in the C field (e.g., 7) and a second number in the R field. FIG. 21B shows a 4-octet SCell origination field. 19 shows an example of an on / off MAC CE. The second MAC PDU subheader has a 4-octet S Cell Activation / Deactivation MAC CE can be identified. 4 octet SCell activation The size of the Activation / Deactivation MAC CE can be constant. 4 octets of SCell Activation / Deactivation The MAC CE can contain four octets. The four octets are the third number C It may contain a second numeric field (e.g., 31) and a fourth numeric R field (e.g., 1). Cut.

[0228] In FIG. 21A and / or FIG. 21B, an SCell having an SCell index i If ll is configured, C i The field contains the SCell with SCell index i. In one embodiment, the C i The field is set to 1 Then, a SCell having SCell index i may be activated. i If the field is set to zero, the SCell with SCell index i is stopped. In one embodiment, if there is no SCell configured with SCell index i, If not, the wireless device i The field may be ignored. , R field may indicate reserved bits. The R field may be set to zero.

[0229] When configured with CA, the base station and / or wireless device may and / or SCell startup / additional delays to improve battery or power consumption To improve performance, a hibernation mechanism for the SCell may be used. When a device hibernates an SCell, the SCell may transition to a dormant state. In response to the SCell going into the dormant state, the wireless device transmits an SRS on the SCell. may stop transmitting, according to the periodicity configured for the dormant SCell; CQI / PMI / RI / PTI / CRI of the SCell may be reported. It does not have to be transmitted on the UL-SCH, it does not have to be transmitted on the RACH on the SCell, and There is no need to monitor the PDCCH on the cell, and there is no need to monitor the PDCCH on the SCell. In one embodiment, the PUCCH on the SCell may be transmitted, and / or the PUCCH on the SCell may not be transmitted. ,When the SCell is in the dormant state, CSI of the SCell is reported, and / on the SCell Not monitoring the PDCCH for the SCell causes the base station to A CSI that is constantly updated can be used to determine when an SCell is in an active state. When transitioning back to the UE state, the base station performs fast and / or accurate channel adaptation on the SCell. Scheduling can be used, which speeds up the SCell startup procedure. In one embodiment, when the SCell is in a dormant state, the CSI of the SCell is reported. Not monitoring the PDCCH on / for the SCell may cause the base station to and / or provide accurate channel information feedback while conserving the battery life of wireless devices. In one embodiment, the PCell / PSCell and / or or PUCCH secondary cell is not configured or has transitioned to dormant state There is a possibility that it is not.

[0230] When configured with one or more SCells, the gNB may At least one of the ells can be activated, hibernated, or stopped. In one embodiment, the gNB can determine whether at least one SCell is in an active state, an idle state, or a standby state. One or more parameters that indicate the state to be set to active or inactive. In one embodiment, the RRC message S Cel can be sent to the wireless device. When the SCell is in the active state, the wireless device transmits SRS on the SCell, l CQI / PMI / RI / CRI reporting, PDCCH monitoring on SCell, Performs PDCCH monitoring and / or PUCCH / SPUCCH transmission on the SCell. It is possible.

[0231] When the SCell is in the inactive state, the wireless device transmits the SRS on the SCell. It is not necessary to transmit the CQI / PMI / RI / CRI of the SCell. It is not necessary to transmit on the UL-SCH on the SCell, but on the RACH on the SCell. It is not necessary to monitor the PDCCH on the SCell, and it is not necessary to monitor the PDC It is not necessary to monitor the CH and / or PUCCH / SPUCCH on the SCell. When the SCell is in the dormant state, the wireless device does not need to transmit It is not necessary to transmit SRS in the It is also possible to transmit the UL-SCH on the SCell, and it is not necessary to transmit the RACH on the SCell. It is not necessary to transmit, and it is not necessary to monitor the PDCCH on the SCell. DCCH does not need to be monitored and / or PUCCH / SPUCC on SCell H. When configured with one or multiple SCells, the gNB Activate at least one of the one or more SCells; hibernate; In one embodiment, the gNB may One or more MAC addresses that contain parameters indicating startup, shutdown, or hibernation The control element may be transmitted to the wireless device.

[0232] In one embodiment, the gNB receives a first signal indicating activation or deactivation of at least one SCell. MAC CE (e.g., start / stop MAC C as shown in FIG. 21A or FIG. 21B) E) can be transmitted to the wireless device. When a SCell with SCell index i is configured, C i Fields are , may indicate the activation / deactivation status of the SCell with SCell index i. In the embodiment, C i If the field is set to 1, the S cell with SCell index i Cell can be started. In one embodiment, i If the field is set to zero, SCe In one embodiment, the SCell with the SCell index i can be deactivated. If there is no SCell configured with index i, the wireless device i Field In Figures 21A and 21B, the R field may indicate a reserved bit. In one embodiment, the R field may be set to zero.

[0233] In one embodiment, the gNB is configured to activate or hibernate at least one SCell. A second MAC CE (e.g., a hibernation MAC CE) indicating In one embodiment, the second MAC CE may transmit to the first MAC CE. Associated with a second LCID (e.g., an up / down MAC CE) that is different from the first LCID In one embodiment, the second MAC CE may have a fixed size. In one embodiment, the second MAC CE has seven C fields and one R field. FIG. 22A shows a second MA having a single octet. In another embodiment, the second MAC CE has 31 C fields and The 4 octets may consist of a 4 octet including a 1, 2, and 3 R field. In one embodiment, the second MAC CE has four octets. The C CE differs from the second LCID of the second MAC CE by a single octet. The third LCID and / or the first LCID of the start / stop MAC CE In one embodiment, if there is no SCell with a serving cell index greater than 7, If so, a 1-octet second MAC CE may be applied, otherwise a 4-octet A second MAC CE may be applied.

[0234] In one embodiment, if the second MAC CE is received and the first MAC CE is not received, If,C i If there is an SCell consisting of SCell index i, may indicate the dormant / activated status of the SCell with index i, otherwise If not, the MAC entity i In one embodiment, the C i but" 1”, the wireless device In one embodiment, the Cell can be put into a dormant state. i is set to "0" If so, the wireless device activates the SCell associated with SCell index i. In one embodiment, C iis set to "0" and SCell index i If the SCell having the SCell index i In one embodiment, a SCell having C i is set to "0", If the SCell with SCell index i is not in a dormant state, the wireless device: C i The field can be ignored.

[0235] In one embodiment, a first MAC CE (activation / deactivation MAC CE) and a second MAC If both MAC CEs (hibernation MAC CEs) are received, Two C's i If there is a SCell consisting of SCell index i, the field , may indicate a possible state transition of the SCell with SCell index i, otherwise Then, the MAC entity is i In one embodiment, two MA C of C.E.E. i The fields may be interpreted according to FIG. 22C.

[0236] When configured with one or more SCells, the gNB may At least one of the ells can be activated, hibernated, or stopped. In one embodiment, the MAC entity of the gNB and / or the wireless device may be configured SCells that are used for PUCCH / SPUCCH (except for SCells that consist of PUCCH / SPUCCH, if any) SCell deactivation timer (e.g., sCellDeactivationTime mer) and deactivate the associated SCell upon its expiration.

[0237] In one embodiment, the MAC entity of the gNB and / or the wireless device is configured SCells consisting of PUCCH / SPUCCH (except for SCells consisting of PUCCH / SPUCCH, if any) The SCell hibernation timer (for example, sCellHibernation nTimer) and when the SCell is in the active state, When the activation timer expires, the associated SCell can be hibernated. In the embodiment, both the SCell stop timer and the SCell hibernation timer When configured, the SCell hibernation timer is set to 0 before the SCell quiesce timer. In one embodiment, the SCell inactivity timer and the SCell hibernation timer can be prioritized. If both the SCe and the IF timer are configured, the gNB and / or radio device Regardless of the expiration of the ll inactivity timer, the SCell inactivity timer can be ignored.

[0238] In one embodiment, the MAC entity of the gNB and / or the wireless device is configured SCells consisting of PUCCH / SPUCCH (except for SCells consisting of PUCCH / SPUCCH, if any) Dormant SCell Deactivation Timer (e.g., dormantSCellDeactivation) tivationTimer) and if the SCell is in a dormant state, Upon expiration of the SCell deactivation timer, the associated SCell may be deactivated.

[0239] In one embodiment, the MAC entity of the wireless device may be configured to configure an active When the UE is configured with an SCell that has been enabled, the MAC entity can activate the SCell. In one embodiment, the MAC entity of the wireless device may activate the SCell. If the MAC entity receives a MAC CE that In one embodiment, the MAC entity may, in response to activating the SCell, Can start or restart the SCell inactivity timer associated with the Cell In one embodiment, in response to activating the SCell, the MAC entity Starts the SCell hibernation timer (if configured) associated with ll. In one embodiment, the MAC entity can start or restart the SCell. In response to the request, a PHR procedure may be triggered.

[0240] In one embodiment, the MAC entity of the wireless device indicates that the SCell is to be deactivated. If the MAC entity receives a MAC CE that In one embodiment, in response to receiving the MAC CE, the MAC entity: Deactivating a SCell, stopping the SCell deactivation timer associated with the SCell and / or flush all HARQ buffers associated with the SCell. In one embodiment, a SCell associated with the activated SCell can be The SCell inactivity timer expires and the SCell hibernation timer is configured. If not, the MAC entity shall The MR can be stopped and / or all HARQs associated with the SCell can be stopped. The buffer can be flushed.

[0241] In one embodiment, the first PDCCH on an activated SCell is or indicates downlink allocation or schedules an activated SCell. The second PDCCH on the serving cell also receives an uplink grant for the activated SCell. or downlink allocation, or the MAC PDU indicates a configured uplink When transmitting with a grant or receiving with a configured downlink allocation, the MAC The entity shall restart the SCell deactivation timer associated with the SCell. If possible and / or configured, the SCell hypervisor associated with the SCell In one embodiment, the SCell is deactivated. In that case, an ongoing random access procedure on the SCell may be aborted.

[0242] In one embodiment, the MAC entity is a SC cell configured to be in a dormant state during SCell configuration. If the cellular state is configured with an SCell associated with it, or if the MAC entity is When a MAC CE is received indicating that the SCell is to be put into a dormant state, the MAC The entity can transition an SCell to a dormant state, or can Sending a CSI report and setting the SCell outage timer associated with the SCell Stopping the SCell and, if configured, SCell hibernation associated with the SCell the SCell deactivation timer associated with the SCell; Starting or restarting a timer and / or all associated In one embodiment, the start-up may include flushing the HARQ buffer. When the SCell hibernation timer associated with the specified SCell expires The MAC entity may hibernate the SCell and Stopping the SCell inactivity timer associated with the SCell Stopping the eberration timer and / or resetting all associated SCells In one embodiment, the HARQ buffers can be flushed. When the dormant SCell inactivity timer associated with the dormant SCell expires, In this case, the MAC entity may deactivate the SCell and / or It is possible to stop the SCell inactivity timer associated with the dormant SCell. In one embodiment, when the SCell is in a dormant state, the ongoing random The access procedure may be aborted.

[0243] The base station (gNB) must upgrade to enable Bandwidth Adaptation (BA) on the PCell. The wireless device uses the uplink (UL) bandwidth portion (BWP) and the downlink (DL) BWP. When carrier aggregation is configured, the gNB can configure the S To enable BA on the cell, the UE must be further configured with at least DL BWP. (i.e., there may be no UL BWP in the UL). In this case, the initial active BWP may be the first BWP used for initial access. For a SCell, the first active BWP is the U E may be a second BWP configured to operate on the SCell. In a spectrum that is available (e.g., FDD), the gNB and / or UE may L BWP can be switched individually. Unpaired spectra (e.g. In TDD, the gNB and / or UE may simultaneously switch between DL BWP and UL BWP. It can be replaced.

[0244] In one embodiment, the gNB and / or the UE may set a DCI or BWP inactivity timer The BWP can be switched between the configured BWPs by the If a serving timer is configured for the serving cell, the gNB and / or UE shall In response to the expiration of the BWP inactivity timer associated with the serving cell, You can switch the active BWP to the default BWP. The default BWP is In one embodiment, for an FDD system, the BA can be configured as When using UL BWP, one UL BWP and one DL BWP for each uplink carrier. BWPs can be active simultaneously in active serving cells. In the case of a TDD system, one DL / UL BWP pair is an active serving One UL BWP and one DL BWP ( or one DL / UL pair) may improve the UE battery consumption. BWPs other than one active UL BWP and one active DL BWP that E can operate are In a disabled BWP, the UE does not need to monitor the PDCCH and and / or not transmit on the PUCCH, PRACH, and UL-SCH.

[0245] In one embodiment, the serving cell is configured with up to a first number (e.g., four) of BWPs. In one embodiment, for an activated serving cell, one There may be an active BWP. In one embodiment, the BWP switches to the serving cell. You can use it to activate the inactive BWP and deactivate the active BWP at the same time. In one embodiment, the BWP switch can be performed by either the downlink assignment or the uplink assignment. In one embodiment, the BWP switch can be controlled by the PDCCH indicating a BWP grant. By an inactivity timer (e.g. bwp-InactivityTimer) In one embodiment, the BWP switch can be controlled in response to the initiation of a random access procedure. The addition of an SpCell or the addition of an SCell can be controlled by the MAC entity. Upon start-up, no PDCCH indicating a downlink assignment or an uplink grant is received In this case, one BWP may be active first. P may be indicated in the RRC and / or PDCCH. For spectrum not yet used, the DL BWP can be paired with the UL BWP, The WP switching may be common to both UL and DL.

[0246] FIG. 23 illustrates an example of BWP switching on an SCell. In one embodiment, the UE ll parameters and one or more BWP configurations associated with the SCell. The RRC message may include an RRC connection reconfiguration message. messages (e.g., RRCReconfiguration), RRC connection re-establishment messages messages (e.g., RRCRestablishment), and / or RRC connection security It may contain one or more setup messages (e.g., RRCSetup). Among the number of BWPs, at least one BWP is the first active BWP (e.g., FIG. 2 One BWP is the default BWP (e.g., BWP0 in Figure 23) ) The UE receives the MAC CE and transmits the SCe The UE can start the SCell deactivation timer (e.g., sCellD eactivationTimer) and starts the CSI-related action for the SCell. Activate the application and / or CSI association for the first active BWP of the SCell. In response to activating the SCell, the UE may initiate a related action. The PDCCH may then be monitored.

[0247] In one embodiment, the UE may respond to receiving a DCI indicating a DL allocation on BWP1 by Then, in the mth slot, the BWP inactivity timer (e.g., bwp-Inactivity The UE can restart the B When the WP inactivity timer expires, the default BWP (e.g. The UE may then switch back to the CellDeactivationTime (BWP0). er expires, stop the SCell and / or BWP inactivity timer can be stopped.

[0248] In one embodiment, the MAC entity is configured with an activated service The active BWP of the receiving cell is transmitted on the UL-SCH and on the RACH. , monitoring the PDCCH, transmitting the PUCCH, and receiving the DL-SCH. , and / or the suspension of permission type 1, if any, configured according to the stored configuration. Apply normal operation, including (re)initializing any configured uplink permissions It is possible.

[0249] In one embodiment, the inactive serving cell of each activated serving cell configured with a BWP On a BWP, the MAC entity does not have to transmit on the RACH and monitors the PDCCH. No need to monitor, no need to transmit PUCCH, no need to transmit SRS, It does not need to receive L-SCH and any configured downlink may clear the uplink assignments and configured uplink grants and / or Any configured uplink grants of type 1 that are

[0250] In one embodiment, the MAC entity may be configured to receive the PDC When a CH is received, the random access procedure associated with this serving cell proceeds. While not in the middle of the BWP, the UE performs a BWP switch to the BWP indicated by the PDCCH. In one embodiment, the bandwidth fraction indicator field is DCI format 1_1 When configured in, the Bandwidth Fraction Indicator field value is the configured It can indicate an active DL BWP from the DL BWP set. If the bandwidth fraction indicator field is configured with DCI format 0_1, The bandwidth fraction indicator field value is taken from the configured UL BWP set for UL transmission. The active UL BWP of each device can be shown.

[0251] In one embodiment, for the primary cell, the UE may set the higher layer parameter Default The t-DL-BWP specifies the default DL BWP among the DL BWPs configured in the UE. In one embodiment, the upper layer parameter Default-DL-BWP can be provided. Therefore, if the UE is not provided with a default DL BWP, the default DL BWP is , initial active DL BWP. In one embodiment, the UE The timer value is determined by the higher layer parameter bwp-InactivityTimer. If configured, the UE shall provide 1 millisecond for frequency range 1 when running. Increment the timer every second interval, or 0.5 milliseconds for frequency range 2 This allows the UE to select the DCI format for paired spectrum operation. If the UE is unable to detect the pair 1_1 or the UE is unpaired during the interval For spectrum operation, select DCI format 1_1 or DCI format 0_1. This is the case when it is not possible to detect the

[0252] In one embodiment, the UE indicates a default DL BWP among the configured DL BWPs. Configured for the secondary cell using the higher layer parameter Default-DL-BWP and the UE receives a higher layer parameter bwp-InactivityTime indicating the timer value. imer, the UE procedures on the secondary cell are timer values ​​for the DMA transfer and the default DL BWP for secondary cells. The ion exchange reaction may be the same as that on the primary cell.

[0253] In one embodiment, the UE has a first active DL on a secondary cell or carrier. The higher layer parameter Active-BWP-DL-SCell, which is the BWP, and the upper layer parameter Active-BWP-, which is the first active UL BWP. If configured with a UL-SCell, the UE shall BWP and the indicated UL BWP on the secondary cell or on the carrier. Used as the first active DL BWP and the first active UL BWP for each It is possible.

[0254] In one embodiment, the set of PDCCH candidates for a wireless device to monitor is It is defined in terms of a search space set. A search space set is a set of CSS or USS sets. The wireless device may search for PDCCHs in one or more of the following search space sets: Monitor candidates. Scrambled by SI-RNTI in the primary cell of MCG. pdcch-Config in MIB for DCI format with CRC By gSIB1 or searchS in PDCCH-ConfigCommon by paceSIB1 or sea in PDCCH-ConfigCommon Type0-PDCCHCSS set configured by rchSpaceZero, M With CRC scrambled by SI-RNTI in the primary cell of the CG, Search in PDCCH-ConfigCommon for DCI format Type configured by hSpaceOtherSystemInformation e0A-PDCCHCSS set, RA-RNTI or TC-RN on primary cell PD for DCI format with TI scrambled CRC Configured by ra-SearchSpace in CCH-ConfigCommon Type1-PDCCHCSS set, P-RNTI in the primary cell of MCG PDCCH- Configured by pagingSearchSpace in ConfigCommon Type2-PDCCHCSS set, INT-RNTI, SFI-RNTI, TPC- PUSCH-RNTI, TPC-PUCCH-RNTI, or TPC-SRS-RNT I, and only for the primary cell, C-RNTI, MCS-C-RNTI, or For DCI formats with CRC scrambled by CS-RNTI In the PDCCH-Config, searchSpaceType=common is set. The Type3-PDCCHCSS set configured by earchSpace, and C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, or CS-RNTI For the DCI format with the CRC scrambled by hSpaceType=ue-Specific in PDCCH-Config A USS set constructed by archSpace.

[0255] In one embodiment, the wireless device may determine a PDCCH monitoring periodicity within a slot, a PDCCH monitoring periodicity within a slot, offset, and one or more PDCCH configuration parameters including the PDCCH monitoring pattern. Based on the meter, it determines the PDCCH monitoring opportunities on the active DL BWP. For each SS, the wireless device determines whether a PDCCH monitoring opportunity is:

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[0256] In an embodiment, the wireless device is configured to include a search space set s associated with CORESETp. In contrast,

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[0257] In one example, the DRX operation is used by the UE to improve the battery life of the UE. If DRX is configured, the UE may receive the downlink control channel, e.g., PDC The base station can monitor the CH or EPDCCH intermittently. The DRX operation can be configured using a set of DRX parameters. DRX parameters are set to allow wireless devices to reduce power and resource consumption. The set of filters can be selected based on the application type. In response to the UE being configured / activated, the UE shall The UE may be in the DRX ON / OFF state, and the base station may wait until the UE transitions to the DRX ON state. , data packets may be received with extended delay.

[0258] In one embodiment, during DRX mode, if there are no packets to be received, the UE may The UE can power off most of the PDCCH in DRX mode. If DRX operation is not configured, the UE shall monitor the PDCCH continuously. During this time, the UE can monitor the downlink ( In DRX mode, the UE listens to the PD The time when not listening / monitoring the CCH is called the DRX sleep state.

[0259] FIG. 24 illustrates an example of an embodiment. The gNB may transmit a DRX cycle An RRC message including the DRX parameters may be transmitted. The parameters may include a first parameter and / or a second parameter. One parameter is a first time value of the DRX active state of a DRX cycle (e.g., The second parameter may indicate the DRX slice of the DRX cycle. The second time of the pause state (e.g., DRX off duration) may be indicated. The parameters may further include the duration of the DRX cycle. The UE may use the PDCCH to detect one or more DCIs on the serving cell. During the DRX sleep state, the UE can monitor the PDCC on the serving cell. If multiple cells are active, U E is all PDCs on (or for) multiple cells during DRX active state During the DRX off duration, the UE can monitor the CH on multiple cells (or The UE can stop monitoring all PDCCHs (for multiple cells). The DRX operation may be repeated according to one or more DRX parameters.

[0260] In one embodiment, DRX may be beneficial to the base station. If X is not configured, the wireless device may transmit periodic CSI and / or SRS frequently. DRX may be enabled (for example, based on configuration) During the duration, the UE may not transmit periodic CSI and / or SRS. The base station can then allocate these resources to other UEs to improve resource utilization efficiency. can.

[0261] In one embodiment, the MAC entity may further include a UE RNTI for each of the multiple RNTIs of the MAC entity. Has a DRX function to control downlink control channel (e.g., PDCCH) monitoring activity The multiple RNTIs are C-RNTI, CS-RNTI, I-RNTI, NT-RNTI, SP-CSI-RNTI, SFI-RNTI, TPC-PUCCH-R NTI, TPC-PUSCH-RNTI, Semi-persistent scheduling C-RNTI, eI MTA-RNTI, SL-RNTI, SL-V-RNTI, CC-RNTI, or SR In one embodiment, the RRC_CO may include at least one of the RRC_TPC-RNTI and the S-TPC-RNTI. If DRX is configured in response to being ANNECTED, the MAC entity Alternatively, the MAC entity may monitor the PDCCH intermittently using DRX operation. The entity may continuously monitor the PDCCH.

[0262] In one embodiment, the RRC controls the DRX operation by configuring multiple timers. The multiple timers include the DRX on duration timer (e.g., drx-on nDurationTimer), DRX inactivity timer (e.g., drx-In activityTimer), downlink DRX HARQ RTT timer (e.g. For example, drx-HARQ-RTT-TimerDL), uplink DRX HARQ R TT timer (e.g., drx-HARQ-RTT-TimerUL), downlink retransmission Transmission timers (e.g., drx-RetransmissionTimerDL), The link retransmission timer (e.g., drx-RetransmissionTimerU L), one or more parameters of the short DRX configuration (e.g., drx-Short tCycle and / or drx-ShortCycleTimer), and Ron One or more parameters of the DRX configuration (e.g., drx-LongCycle) In one embodiment, the time granularity of the DRX timer is set to 1 / PDCCH subframe. in terms of frames (e.g., denoted as psf in DRX configuration) or in milliseconds. It is possible.

[0263] In one embodiment, in response to the DRX cycle being configured, the active time is The at least one timer may include a time between execution of the at least one timer. drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerDL, drx-Retransmis sionTimerUL, or mac-ContentionResolutionT It may contain imer.

[0264] In one embodiment, the drx-Inactivity-Timer is set to 0 if a new transmission (UL or After successfully decoding a PDCCH indicating that the UE may be active (downstream or downstream), This timer is initiated before any new transmission (UL, DL, or In response to the expiration of this timer, the UE shall: DRX mode (e.g., short DRX cycle or long DRX subcycle) In one embodiment, the drx-ShortCycle is used to determine whether the UE is in DRX mode. The first type of DRX cycle that must be followed when entering the In one embodiment, the DRX-Config IE indicates the length of the short cycle. drx-ShortCycleTimer is a multiple of shortDRX-Cycle. The timer is set to wait for a short DRX cycle before entering a long DRX cycle. The drx-onDurationTimer may indicate the number of initial DRX cycles to be followed. , may specify the duration at the start of a DRX cycle (e.g., DRX ON). onDurationTimer is the duration before entering sleep mode (DRX OFF). The drx-HARQ-RTT-TimerDL may indicate the time when a new transmission is received. A timeout may specify the minimum time from the time the UE receives a packet before it can expect a retransmission of the same packet. The timer may be fixed and may not be configured by the RRC. nsmissionTimerDL is the time that a retransmission from the eNodeB is expected by the UE. The PDCCH_TIME may indicate the maximum period for which the UE can monitor the PDCCH if one is specified.

[0265] In response to the DRX cycle being configured, the active time is The DRX request may be transmitted on the PUCCH and may include the time during which it is pending. In response to the cycle being configured, the active time is increased for pending HARQ retransmissions. An uplink grant for a synchronous HARQ process may occur, and a corresponding HARQ buffer for a synchronous HARQ process may be generated. In response to the DRX cycle being configured, the DRX cycle may include a time during which data is present in the FW. The active time is the time for a new transmission addressed to the C-RNTI of the MAC entity. The PDCCH indicating the preamble not selected by the MAC entity This may include the time during which a dumb access response was not received after successful receipt of the dumb access response.

[0266] The DL HARQ RTT timer may expire in a subframe and the corresponding HARQ process The data of the corresponding HARQ process cannot be decoded successfully. UL H The ARQ RTT timer may expire in the subframe. drx-RetransmissionTimerUL of the HARQ process that A DRX command MAC control element or a Long DRX command MAC control element is received. The MAC entity may stop the drx-onDurationTimer and In one embodiment, the rx-InactivityTimer can be stopped. The tivityTimer may expire or the DRX command MAC Control element In one embodiment, a short DRX cycle is configured. In response, the MAC entity shall start or The MAC entity may restart and use a short DRX cycle. The T may use a long DRX cycle.

[0267] In one embodiment, the drx-ShortCycleTimer may expire in a subframe. The MAC entity may use a LongDRX cycle. A ngDRX command MAC Control element may be received. The ShortCycleTimer may be stopped and a long DRX cycle may be used.

[0268] In one embodiment, a short DRX cycle is used, where [(SFN*10)+subframe drxStartOffset ) modulo (drx-ShortCycle), the wireless device In one embodiment, a long DRX cycle is used. , [(SFN*10)+subframe number] modulo(drx-longCycle) If drxStartOffset = drx-onDuration, the wireless device nTimer may be started.

[0269] FIG. 25 shows an example of the DRX operation. The base station receives R The base station can transmit a downlink link RC message via the PDCCH. The UE can send DCI for the source allocation. The UE may start a ctivityTimer during which it monitors the PDCCH. When the drx-InactivityTimer is executed, the transmission block After receiving the TB, the UE starts the HARQ RTT timer (e.g., drx-HA RQ-RTT-TimerDL) during which the UE transmits the PDCCH. If the UE fails to receive the TB, it can stop monitoring the NA. CK can be sent to the base station. When the HARQ RTT timer expires, the UE monitors the PDCCH and sets the HARQ retransmission timer (e.g., drx-Retransm The HARQ retransmission timer (transmissionTimerDL) can be started. If so, the UE shall receive a second DCI indicating DL permission for retransmission of the TB. If the UE does not receive the second DCI before the HARQ retransmission timer expires, may stop monitoring the PDCCH.

[0270] FIG. 26A shows an example of a power saving mechanism based on wake-up. parameters for the power save period (e.g., power save period or power save channel (PSCH) opportunity) The UE may then transmit one or more messages containing a wake-up timer. The DRX On duration is a number of slots (or The number of slots (or symbols) or wake The so-called gap between the up duration and the DRX on duration may be one or more The gap can be configured in a number of RRC messages or can be predefined as a fixed value. can synchronize with the gNB, measure reference signals, and / or retune RF parameters. The gap can be used for at least one of adjusting the UE and / or or based on the capabilities of the gNB. The parameters may be predefined without RRC configuration. The mechanism can be based on a wake-up indication over the PSCH. The parameters of the duration are PSCH channel format (e.g. numerology, DCI format, PDCCH format), PSCH periodicity, control resource set and and / or PSCH search space. If configured with the time parameter, the UE shall not wake up during the wake-up duration. It can monitor either the hop signal or the PSCH. It is configured with the PSCH opportunity parameters. If so, the UE shall monitor the PSCH for wake-up indications during PSCH opportunities. Wake-up signal / channel (or wake-up indication via PSCH) In response to receiving the DRX configuration, the UE wakes up to monitor the PDCCH in accordance with the DRX configuration. In one embodiment, the wake-up indication can be received over the PSCH. In response, the UE may set a DRX active time (e.g., drx-onDurasi The PDCCH can be monitored during the DRX A. If the UE does not receive a PDCCH during the active time, the UE may return to a sleep state. The UE may remain in sleep state during the DRX off duration of a DRX cycle. In one embodiment, the UE wakes up during a wake-up period (or PSCH opportunity). If the U E may skip monitoring the PDCCH during the DRX active time.

[0271] In one embodiment, the power saving mechanism is based on a go-to sleep indication over the PSCH. FIG. 26B shows an example of power saving based on a go-to sleep indication. In response to receiving a go-to sleep indication via, the UE goes back to sleep; During the DRX active time (e.g., the next DRX on duration of the DRX cycle), the PDC In one embodiment, the UE can skip monitoring the CH during wake-up time. If the UE does not receive a go-to sleep indication via the PSCH, it This mechanism monitors the PDCCH during the DRX active time according to the following parameters: This can reduce the power consumption of PDCCH monitoring during DRX active time.

[0272] In one example, the power saving mechanism is implemented by combining Figs. 26A and 26B. The base station may determine whether the wireless device is in a waiting state for the next DRX on duration. The time-saving setting in the DCI indicates whether to back up or skip the next DRX on duration. The power indication may be transmitted over the PSCH. The wireless device may receive the DCI over the PSCH. Indicates that the wireless device will wake up for the next DRX on duration. In response to a power saving indication, the wireless device shall wake up for the next DRX on duration. In response to the wake-up, the wireless device may Monitor the CH. The wireless device skips (or switches) during the next DRX on duration. In response to a power saving indication indicating that the wireless device is to resume the next DRX on duration, The wireless device sleeps or skips between the next DRX on hold. In response to a power saving indication indicating that the device will sleep for the next DRX on duration, In this case, the PDCCH monitoring is skipped.

[0273] FIG. 27 illustrates an exemplary embodiment of a power saving mechanism. A base station (e.g., a gNB) A first configuration parameter of a power saving channel (PSCH) is transmitted to a wireless device (e.g., a UE). and one or more RRCs including second configuration parameters for the synchronous and power saving (PS) operations. The first configuration parameter of the PSCH may be one or more first The search space (SS) of the UE and / or one or more first constraints on which the UE monitors the PSCH. Controlled Resource Set (COREST), one or more primary resources that the UE monitors for the PSCH. DCI format, a dedicated radio network temporary identifier (R NTI) (e.g., 3GPP's existing RN The PS operation may include at least one of the following: The second configuration parameter is one or more first PDCCHs that the UE monitors for PDCCH in PS operation. A second SS and / or one or more second CORESTs, the UE is in PS operation and one or more first DCI formats to monitor the CH; The first maximum number of antennas on which MIMO processing (transmit or receive) can be performed. One or more MIMO parameters indicating (layer, port, TRP, panel, etc.) When the UE is in PS operation, check whether cross-slot scheduling is configured. one or more first cross-slot scheduling indicators indicating whether U BWP index indicating where E sends or receives a data packet in the PS operation, and and / or cell-in, which indicates where the UE transmits or receives data packets in PS operation. The one or more RRC messages may include at least one of the following indexes: The method may further include a third configuration parameter for normal functional operation (e.g., full function, non-PS, etc.). The third configuration parameter specifies whether the UE will monitor the PDCCH in non-PS operation. number of third SSs and / or one or more third CORESTs, the UE is in non-PS operation one or more second DCI formats for monitoring the PDCCH in the The second maximum number of antennas is the criterion for performing MIMO processing (transmit or receive). One or more MIMO parameters that indicate the network topology (layer, port, TRP, panel, etc.) Cross-slot scheduling is configured when the target UE is in non-PS operation one or more second cross-slot scheduling indicators indicating whether The UE may include at least one of a cross-slot Based on the scheduling, cross-slot scheduling is implemented to save power. After receiving DCI indicating journing, and receiving data packets based on the DCI Before doing so, switch off some receiver modules (e.g. data buffering, R In one embodiment, one or more second SSs and and / or one or more second CORESTs may be configured to reduce the number of smaller than one or more third SS and / or one or more third COREST The first maximum number may be set to, for example, for power saving purposes, so that the second maximum number may occupy a smaller amount of radio resources. It may be less than the maximum number.

[0274] As shown in Figure 27, when configured with the parameters of PSCH and PS operation, the UE is the DC with CRC scrambled by the PS-RNTI during the PSCH monitoring opportunity. The PSCH (e.g., on the first SS / CORESET) may be monitored to detect I. Based on the PSCH monitoring, the UE determines whether the PSCH included in the DCI received via the PSCH is The DCI may also indicate active BWP switching. In response to receiving the PS indication via H, the UE may perform one or more of the following steps for PS operation: The PS may initiate execution of a PS operation based on one or more of the second configuration parameters. The second PDCCH opportunity and the second PDCCH opportunity are performed based on the configuration parameters of SS / CORESET, and refrain from monitoring the PSCH of the third PDCCH opportunity and the third SS / CORESE Refrain from monitoring the PDCCH at T, and the first maximum number of antennas (layer, port, TR P, panel, etc.) and / or one or more A cross-slot scheduler based on a first cross-slot scheduling indicator. At least one of transmitting or receiving a data packet using the ring. The performing of the PS operation may include detecting an active BWP (e.g., Switching a cell (PCell / SCell, or cell base) to a dormant BWP of one or more cells If the DRX operation is not configured, the UE may further include changing the second PDCCH opportunities, and may continuously monitor the PDCCH in the second SS / CORESET When the DRX operation is configured, the UE determines the DRX active time (e.g., the next DRX On duration) in the second PDCCH opportunity and in the second SS / CORESET The UE may monitor the PDCCH intermittently. The UE may determine whether to In response to receiving a DCI indicating an uplink grant or a downlink allocation, The UE may transmit and receive data packets or TB.

[0275] In one embodiment, in response to receiving the PS indication via the PSCH, the UE Based on the PS indication of the state transition of the SCell, the SCell is moved from the active state to the dormant state. The dormant state of the SCell may be transitioned to a dormant state when the wireless device is in a P Stop monitoring the DCCH(s), stop receiving the PDSCH on the SCell, and Uplink signals on the Cell (PUSCH, PUCCH, PRACH, DRMS, and and / or PRACH) and / or CSI record of the SCell. The wireless device may transmit the SCell inactive state. SCel continues until a second indicator is received indicating a transition from the inactive state to the active state. l resting state can be maintained.

[0276] As shown in Figure 27, when configured with the parameters of PSCH and PS operation, the UE may monitor the PSCH during a PSCH monitoring opportunity (e.g., the first SS / CORESET The UE may, for example, decide if the base station decides that the UE should remain in full-function mode or non-PS mode. If the PS indication is not detected via the PSCH, the PS indication does not need to be detected via the PSCH. In response to not receiving the indication, the UE may In one embodiment, the base station may determine that the wireless device is in a fully functional mode. The wireless device may transmit a PS indication indicating whether to remain in the functional mode. H. The PS Indication may indicate that the radio should remain in full-functionality mode. and in response, the wireless device determines, based on the one or more third configuration parameters, It may start operating in a fully functional mode.

[0277] In one example, a method for controlling operation in a fully functional mode based on one or more third configuration parameters. To implement this, a third PDCCH opportunity and a PDCCH in a third SS / CORESET are monitoring the PSCH in the first SS / CORESET; refraining from monitoring the PSCH in the second P Refrain from monitoring the PDCCH on DCCH opportunities and the second SS / CORESET; 2 Transmission of data packets over the maximum number of antennas (layers, ports, TRPs, panels, etc.) Receive one or more ACKs indicating that the same slot scheduling is configured. The same slot scheduling based on a second cross-slot scheduling indicator of the number The method may include at least one of transmitting or receiving a data packet in a time domain. The UE shall use the DRX in the third PDCCH opportunity and in the third PDCCH opportunity if DRX operation is not configured. The UE may continuously monitor the PDCCH in the SS / CORESET. When the DRX is activated, the third PDCCH opportunity and the third SS / The UE may monitor the PDCCH in the CORESET intermittently. DCI indicating uplink grant or downlink allocation based on DCCH monitoring In response to receiving the , the data packet or TB may be transmitted or received.

[0278] FIG. 28 illustrates an example of a downlink beam failure recovery (BFR) procedure for a cell. In one example, The wireless device receives one or more messages from the base station at time T0. One or more messages can contain one or more configuration parameters for multiple cells. The plurality of cells may include a first cell (e.g., PCell, PSCell , PUCCH SCell, SCell) and one or more secondary cells. One or more secondary cells may be a second cell (e.g., One or more RRC messages may be included. The message may be sent as one or more RRC messages (e.g., an RRC Connection Reconfiguration message, or RRC connection re-establishment message, or RRC connection setup message) One or more configuration parameters can be used to assign cell-specific indices to multiple cells. (e.g., provided by the higher layer parameter servCellIndex) In one embodiment, each cell of the plurality of cells may indicate a respective cell-specific index. It can be identified by a cell-specific index.

[0279] In one embodiment, the one or more configuration parameters are BWP configuration parameters for the multiple BWPs. The BWPs may include a first DL BWP of the cell and and / or a first plurality of UL BWPs of the cell. The meter may further include a BWP-specific index for the multiple BWPs. Each BWP is a unique BWP index for each of the multiple BWPs. can be identified by a unique index (e.g., one or more configuration parameters) (provided by the higher layer parameter bwp-ID in

[0280] In an embodiment, the one or more configuration parameters include a downlink BWP of the second cell. (e.g., explicit BFD configuration), one or more first RSs (e.g., IE RadioLink provided to RadioLinkMonitoringConfig kMonitoringRS) of one or more first RSs. Both RSs are transmitted / configured on / in the first cell and / or on / in the second cell. The second cell and the first cell may be in-band and / or QCL-ed (e.g. , cross-carrier QCL) and / or based on similar channel characteristics (e.g. At least one RS based on the sharing of characteristics (e.g., Doppler spread, spatial filter, etc.) One or more configuration parameters may share the maximum beam obstruction instance (B FI) counters (e.g., beamFailureInstanceMaxCount The wireless device may evaluate the one or more first RSs to indicate the second cell's A beam obstruction for the downlink BWP can be detected. One or more configuration parameters The metric may indicate a first threshold (e.g., rlmInSyncOutOfSyncThreshold shold, Qout, LR). One or more configuration parameters The BeamFailureRecovery feature is used to detect the presence of one or more secondary RSs (e.g., IE The wireless device may indicate the candidate BeamRSList provided in the ryConfig. , evaluating one or more second RSs to determine the BFR procedure of the downlink BWP of the second cell. The candidate RS may be selected from among one or more second RSs for the order. The second RS may include one or more second CSI-RSs, and / or one or more The second SS / PBCH block may include a second SS / PBCH block.

[0281] In one embodiment, the one or more configuration parameters include a second threshold for the BFR procedure. (For example, rsrp-T in IE BeamFailureRecoveryConfig The wireless device may indicate a second cell A second threshold may be used in the candidate beam selection of one or more configuration parameters. For the BFR of the second cell (or the downlink BWP), the BFR timer (e.g. For example, IE BeamFailureRecoveryConfig's beamFailu reRecoveryTimer).

[0282] In one example, one or more configuration parameters may indicate a search space set (e.g., , IE BeamFailureRecoveryConfig recoverySe The search space set is linked to the CORESET. The search space set may represent a CORESET. The device communicates with CORESET for the BFR procedure of the second cell (or downlink BWP). The base station may configure a CORESET on the first cell. The base station may monitor the second cell. The wireless device may configure a CORESET on the cell of the downlink BWP. For procedures, a search space set (e.g., linked to a CORESET) may be monitored. The downlink BWP may be an active downlink BWP of the second cell. The physical layer of the device may be one or more (for beam failure detection in the downlink BWP) The physical layer may evaluate a first radio link quality of the first RS. Worse than the first threshold (e.g., higher BLER, lower L1-RSRP, lower L1-S The BFI indication may be provided to higher layers (e.g., MAC) of the wireless device at the time of the INR.

[0283] In one embodiment, the upper layers of the wireless device (e.g., MAC) provide a BFI indication. In response to the request, the BFI_counter may be incremented by one. The BFI_PARE counter may be a BFI-indicated counter. The wireless device must first set BFI_PARE to zero. Based on the increment of BFI_PARE, BFI_PARE can be set to the maximum BFI Counters (e.g. beamFailureInstanceMaxCount) etc. The wireless device may receive a BFI_COUNTER of up to 100 Mbps. Down of the second cell based on being equal to or greater than the FI counter The wireless device may detect a beam failure of the downlink BWP. Upon detection of a fault, it may initiate a BFR procedure for the downlink BWP of the second cell. Upon initiation of a BFR procedure, the wireless device may start a BFR timer.

[0284] In one embodiment, upon initiation of a BFR procedure, the wireless device The candidate beam selection may start based on one or more second RSs (second threshold Candidate RSs (e.g., CSI-RSs, having a quality higher than the value The initiation of candidate beam selection may include: One or more candidates of one or more second RSs are selected by the physical layer to a higher layer. RS, and / or one or more candidate measurements of one or more candidate RS (e.g., One or more Indices (of RS-specific indexes) associated with the L1-RSRP measurement The physical layer of the wireless device may include one or more second The UE may perform one or more measurements (eg, L1-RSRP measurements) on the RS. The wireless device receives one or more measurements of one or more candidate RSs. If the candidate measurement value is higher than a second threshold (e.g., rsrp-ThresholdSSB), (e.g., lower BLER or higher L1-RSRP or higher SI Based on a request from the physical layer to the upper layer, the physical layer may determine that the first R A first measurement of S and a first RS-specific index, and a second measurement of a second RS. A value and a second RS-specific index may be provided.

[0285] In one embodiment, the one or more configuration parameters are For example, PUCCH, PRACH, PUSCH). , Physical Random Access Channel (PRACH) resources, Physical Uplink Control Channel Physical Uplink Shared Channel (PUCCH) resources, and / or Physical Uplink Shared Channel (PUSCH ) resources.

[0286] In the example, the wireless device may initiate a BFR procedure for the second cell at time T2 in FIG. At least one uplink physical channel (e.g., P RACH or PUCCH or PUSCH) via uplink signals (e.g., PR Preamble via ACH, Beam Failure Recovery Request (BFRQ) via PUCCH , Scheduling request (SR) via PUCCH, MAC-CE via PUSCH , aperiodic CSI-RS via PUSCH).

[0287] In one embodiment, the wireless device may receive DCI from the base station at time T3 in FIG. DCI is an uplink / downlink control signal for downlink assignment / uplink grant. DCI can indicate the frequency / time resources of the CSI report (e.g., DCI may trigger a CSI report (periodic CSI report). It may also include an I-request field.

[0288] In one embodiment, the wireless device receives the uplink resource indicated by the DCI at time T4. A second uplink signal (e.g., PUSCH, transport block , aperiodic CSI report, UCI, PUCCH, MAC-CE, etc. The second uplink signal is the MAC-CE (e.g., BFR MAC-CE, PHR MA The second uplink signal may be a Layer 1 report. In one embodiment, the second uplink signal includes a CSI report (e.g., aperiodic CSI report). The second uplink signal may be a second cell-specific I report of the second cell. It can contain / indicate index.

[0289] In an embodiment, the wireless device may receive candidate RS indexes of RS-specific indexes for the BFR procedure. Select a candidate RS (of one or more secondary RSs) by identifying / associating with the index Based on selecting / identifying the candidate RS, the second uplink signal may include: It may indicate the candidate RS index of the candidate RS.

[0290] In one embodiment, the wireless device transmits a BFR command at time T2 for a BFR procedure for the SCell. The wireless device can skip transmitting Q and skip receiving DCI at time T3. The device transmits a second uplink signal indicating the candidate RS index / cell index. When there is an available uplink grant to transmit the BFRQ, the DC In response to the initiation of the BFR procedure, the wireless device may skip receiving the I. A second uplink grant via an available uplink grant (e.g., a dynamic grant or a configured grant) It may transmit uplink signals (e.g., MAC CE).

[0291] In one embodiment, when a BFR procedure for an SCell as shown in FIG. 28 is performed, The line device selects a candidate RS (or a candidate B that is identified by a candidate RS) from multiple candidate RSs. rsrp-ThresholdSSB) and does not identify the second threshold (e.g., rsrp-ThresholdSSB). It has a lower BLER or a higher L1-RSRP or a higher SINR. In this technique, the candidate RS is not identified by sending a signal (e.g., MAC CE). In response, the wireless device may deactivate the SCell. In response to transmitting a signal (e.g., MAC CE) indicating that the wireless device is not The PDCCH of the SCell may continue to be monitored, and the SCell may be kept in an active state. If no auxiliary beam is identified, stopping the SCell will delay the restart of the SCell. In one embodiment, the base station may transmit a SCell between the base station and the wireless device. After the upper beam pair link is restored, a MAC CE may be sent indicating the activation of the SCell. The MAC CE is delivered by the base station using the DCI to schedule the MAC CE. The base station transmits the MAC CE based on the DCI. receiving a DCI by the wireless device; receiving a MAC CE by the wireless device; sending a HARQ-ACK for receiving the MAC CE by the wireless device; If the ARQ-ACK indicates a NACK for the MAC CE, the base station retransmitting the AC CE. If no candidate beam is identified, the SCel By keeping the 1 in an active state, the wireless device can, for example, PDCCH monitoring, increasing power consumption for uplink transmission on SCell It is possible to monitor the PDCCH on the SCell or the uplink transmission on the SCell. The point is that if a BFR procedure is initiated and no candidate beams are identified, it is not successful and other radio This can increase uplink interference to devices. For example, the candidate beam for BFR procedures It is necessary to improve the BFR procedure for SCells, for example when the SCell is not identified. The disclosed embodiments provide a method for reducing the wake-up / restart delay of an SCell for a BFR procedure on the SCell. , may reduce power consumption of the wireless device and uplink interference to other wireless devices.

[0292] FIG. 29 illustrates an exemplary embodiment of a BFR procedure on a SCell. As shown in FIG. Then, the base station receives one or more cellular configuration parameters including the SCell. An RRC message may be sent to the wireless device. The message is used to configure (add or change) a wireless device with a serving cell. , including a serving cell configuration IE (e.g., ServingCellConfig). The serving cell can be an SpCell or an SCell of the MCG or SCG. The configuration parameters of the SCell include the first configuration parameters of the BFR procedure on the SCell. The first configuration parameter may be a first plurality of RSs for beam fault detection, a candidate A second plurality of RSs for beam identification, a first threshold for beam failure detection, and a candidate beam The configuration parameters of the SCell are multiple search spaces, S It may further indicate multiple CORESETs for PDCCH monitoring on the cell.

[0293] As shown in FIG. 29, the base station transmits a command (e.g., DCI, In response to receiving a command, the UE may send a MAC CE, and / or RRC message. Then, the wireless device activates the SCell to the active state. When in the active BWP state, the wireless device transmits multiple COREs on the active BWP of the SCell. The SET monitors PDCCHs on multiple search spaces and selects active BWPs on the SCell. PDSCH is received via the uplink active BWP of the SCell, and PUCCH is / PUSCH / SRS / PRACH can be transmitted. In response to the first plurality of RSs and the first beam obstruction detection, the wireless device Based on the monitoring of the threshold, the wireless device may perform the BFR procedure. By this, beam obstruction detection can be performed.

[0294] As shown in FIG. 29, the radio device transmits a second multiple The wireless device may perform candidate beam selection from multiple RSs. The wireless device may perform candidate beam selection by using a second plurality of RSs. BLER lower than the second threshold (e.g., rsrp-ThresholdSSB) or not identify candidate beams with higher L1-RSRP or higher SINR. This is also fine.

[0295] In response to the candidate beam not being identified, the wireless device may In one embodiment, the candidate beam is not identified. Based on this, the wireless device changes the SCell from the active state to the dormant state ( When the SCell transitions to the dormant state, the wireless device may transition to the S Stop monitoring PDCCHs in multiple search spaces of multiple CORESETs in a cell. Stops reception of PDSCH via SCell and stops reception of PUCCH / The transmission of PUSCH / SRS / PRACH can be stopped. The SCell can be put into a dormant state. In response to the transition, the wireless device may The wireless device may transmit a CSI report for the UCCH SCell. For the SCells in the active state, the CSI report is compared with that for the SCells in the active state. This allows for a smaller amount of CSI reporting and / or smaller PUCCH resources. In the case of a SCell in a dormant state, the CSI report may be transmitted at a reduced transmission period. In response to the transition to the active state, the wireless device The PDCCH monitoring on the SCell may be reduced as compared to the CCH monitoring. In response to transitioning the SCell to a dormant state, the P Compared to DCCH monitoring, the monitoring periodicity is reduced, the number of search spaces is reduced, and CORES A PDCCH monitoring scheme with a reduced number of ETs and / or reduced DCI format It can be seen.

[0296] As shown in Figure 29, based on the reception of CSI reports for SCells in the dormant state, Therefore, the base station may decide to transition the SCell from a dormant state to an active state. The base station determines whether the CSI report (including, for example, the beam report) is valid between the base station and the wireless device. The beam quality of the beam-pair link on the SCell between the At some point, it may decide to transition the SCell to the active state. In response to indicating that the radio quality is better than the threshold, the base station transitions from a dormant state to an active state. A DCI may be transmitted indicating the transition of the SCell to the active state. DCI-based transitions to and from the Cell Active state are initiated when a BFR procedure is initiated and a candidate If the BF is not identified, the wake-up delay of the SCell may be reduced. If the R procedure is initiated and no candidate beam is identified, the PDCCH monitoring on the SCell is performed. An exemplary embodiment may reduce power consumption of a wireless device for receiving a BFR procedure. If no candidate beams are identified, uplink interference to other wireless devices may be reduced. The exemplary embodiment is adapted to: Start-up delay may be reduced.

[0297] FIG. 30 illustrates an example flowchart of a BFR procedure on a SCell. The SCell configuration parameters, i.e. the first configuration parameters of the BFR procedure on the SCell. and configuration parameters including a second configuration parameter for hibernation on the SCell In one example, the first configuration parameter may be received. The parameter can be implemented according to the example of FIG. 28. The second configuration parameter is the hibernation The PDCCH monitoring configuration and / or the idle CSI reporting configuration of the wireless device may be indicated. The device receives a command (e.g. DCI, MAC CE and / or In response to the activation of the SCell, the wireless device may receive a RRC message. A BFR procedure may be performed based on a first configuration parameter of the BFR procedure. The wireless device may perform BFR processing on the SCell, for example, by implementing the example of FIG. Candidate beam selection for the order can be performed.

[0298] In one embodiment, the wireless device determines that the channel quality of the candidate beam is better than a threshold. In response to the determination, the candidate beam may be identified. In response, the wireless device may transmit a MAC CE indicating candidate beams for the SCell. In response to transmitting the MAC CE indicating the identified candidate beam, the wireless device The UE may continue to monitor the PDCCH on the SCell and keep the SCell active.

[0299] In one embodiment, the wireless device is configured to detect whether the channel quality of the candidate beam is better than a threshold. In response to the candidate beam not being identified, it may be determined that the candidate beam is not identified. In response to the request, the wireless device may indicate that no candidate beams for the SCell are identified. A MAC CE may be sent to indicate that no candidate beams for the SCell are identified. In response to the transmission of the CE, the wireless device transitions the SCell from the active state to the dormant state. Based on the dormant state, the wireless device may monitor the PDCCH on the SCell. The wireless device may stop transmitting the CSI report of the SCell based on the hibernation state. Compared with the active state of PDCCH monitoring on the SCell, the device Based on the dormant state, the wireless device may reduce the PDCCH periodicity of the SCell. Using less periodic SCell reports compared to active CSI reports The CSI report may be sent via the

[0300] In one embodiment, the wireless device may be configured to: The command is received in response to a MAC CE sent by the wireless device, indicating that the In response to receiving the signal, the SCell may be transitioned from an active state to a dormant state. FIG. 31 illustrates an example embodiment of a BFR procedure on a SCell. As shown in FIG. The base station receives one or more R One or more RRC messages may be sent to the wireless device. The page can be implemented according to the example of FIG.

[0301] As shown in FIG. 31, the base station transmits a command (e.g., DCI, In response to receiving a command, the UE may send a MAC CE, and / or RRC message. Then, the wireless device activates the SCell to the active state. In response to being in the active state, the wireless device detects a first plurality of RSs and a beam obstruction. The wireless device may perform a BFR procedure based on monitoring a first threshold for By implementing the example in 8, beam obstruction detection can be performed.

[0302] As shown in FIG. 31 , the wireless device may receive a second plurality of BFR packets for the BFR procedure on the SCell. The wireless device may perform candidate beam selection from the first plurality of RSs. BLER lower than a second threshold (e.g., rsrp-ThresholdSSB) or It is not necessary to identify candidate beams with higher L1-RSRP or higher SINR. .

[0303] In response to the candidate beam not being identified, the wireless device may The wireless device sends a MAC CE indicating that the system is not identified. In response to the transmission, the wireless device may maintain the SCell in an active state. When l is in the active state, it may continue to monitor the PDCCH on the SCell.

[0304] In one embodiment, the wireless device may receive an acknowledgment of the MAC CE at the base station. The line device may receive a DCI including an uplink grant in response to the MAC CE. The DCI is the same as that used to transmit the MAC CE as an acknowledgement of the MAC CE. DCI may indicate a new transmission for the same HARQ process. Acknowledgement of receipt of the MAC CE may be indicated by toggling the NDI value of the DCI The MAC CE acknowledgement shall not include a power saving indication or a SCell dormancy indication. In response to receiving the DCI (e.g., or MAC CE acknowledgement), the wireless device may cause the SCell to transition from the active state to the hibernation state (power saving state). When the SCell transitions to the hibernation state, the device stop monitoring the PDCCH over the search space of the number of PDSCHs via the SCell, Stops reception and transmits PUCCH / PUSCH / SRS / PRACH via SCell In response to transitioning the SCell to the hibernation state, The wireless device may use a The wireless device may transmit the active CSI report for the dormant SCell. A smaller amount of CSI reports compared to the CSI reports for active SCells. The transmission period is reduced with port content and / or with smaller PUCCH resources In response to transitioning the SCell to a dormant state, the CSI report may be transmitted. Therefore, the wireless device monitors the PDCCH on the SCell in the active state compared to the PDCCH on the SCell in the active state. The wireless device may reduce PDCCH monitoring on the SCell. In response to the request, the monitoring The visual periodicity is reduced, the number of search spaces is reduced, the number of CORESETs is reduced, and and / or a PDCCH with reduced DCI format. If the BFR procedure is initiated and no candidate beam is identified, the PDCCH monitoring on the SCell is performed. The exemplary embodiment may reduce the power consumption of the wireless device for viewing. and may reduce the SCell activation delay if no candidate beam is identified.

[0305] In one embodiment, the wireless device is configured to initiate a BFR procedure for the first SCell. and does not need to identify candidate beams for the BFR procedure for the first SCell. The first SCell is a PUCCH SCell. In response, the wireless device maintains the first SCell in an active state and A PUCCH SCell of the second SCell is composed of the first SCell. , one or more second SCells may be transitioned from an active state to a dormant state. .

[0306] FIG. 32 illustrates an example of a BFR procedure on a SCell. In one embodiment, the wireless device A BFR procedure for the first SCell can be initiated. There is no need to identify candidate beams for the FR procedure, and the first SCell is the PUCCH S Cell.

[0307] In one embodiment, in response to a candidate beam not being identified, the wireless device If the H resource is configured on the first SCell, the PUCCH resource on the first SCell In one embodiment, the wireless The device responds to the beam correspondence that exists between the downlink and the uplink by The CCH resource may be erased. The beam correspondence between the downlink and uplink may be The device receives downlink signals (e.g., SSB / CSI-RS / DMRS) in the Based on the domain filter (e.g., the same as), the uplink signal (e.g., PUC When determining the transmit spatial domain filter for the 1000MHz channel (CH / PUSCH / SRS / PRACH) Clearing a PUCCH resource may be done by changing the PUCCH resource configuration parameters. This may include not maintaining a PUCCH resource and ceasing use of the PUCCH resource. After clearing the PUCCH resource, the wireless device When it is decided to reconfigure the UCCH resource, R RC messages may be received.

[0308] In one embodiment, in response to a candidate beam not being identified, the wireless device If the H resource is configured on the first SCell, the PUCCH transmission on the first SCell The wireless device may suspend transmission and keep the first SCell active. In response to a beam correspondence existing between the link and the uplink, UCCH transmission may be suspended and the first SCell may remain active. Suspending transmission maintains the configuration parameters of the PUCCH resources and The PUCCH resource may include stopping transmission of UCI over the PUCCH resource. After that, the wireless device resumes PUCCH transmission when the beam pair link is restored. (eg, without receiving a PUCCH resource reconfiguration RRC message).

[0309] In one embodiment, the wireless device is configured to initiate a BFR procedure for the first SCell. and does not need to identify candidate beams for the BFR procedure for the first SCell. The first SCell is a PUCCH SCell. The UL-TCI indicates the SSB / CSI-RS index of the first SCell. In response, the wireless device suspends PUCCH / PUSCH transmission on the first SCell. The SSB / CSI-RS index may be set to 0 and the first SCell may be kept active. The cluster is configured on the first SCell for beam failure detection or candidate beam selection. The PUCCH / PUSCH transmission can be interrupted by identifying one of the multiple RSs that are , maintaining configuration parameters of PUCCH / PUSCH resources. After the CCH / PUSCH resource is interrupted, the wireless device When the PUCCH / PUSCH transmission is restarted (e.g., In one embodiment, the wireless device When L-TCI indicates the SSB / CSI-RS index of a cell, SSB / CSI-R SSB / CSI-RS receive spatial domain filter identified by S index In one example, the wireless device may determine a transmit spatial domain filter based on the The UE may receive UL-TCI in DCI indicating uplink permission.

[0310] In one embodiment, the wireless device is configured to initiate a BFR procedure for the first SCell. and does not need to identify candidate beams for the BFR procedure for the first SCell. In response to no candidate beam being identified, the wireless device may configure a permitted transmission, P Suspend SP-CSI and / or SP-SRS transmission on UCCH / PUSCH. The interruption of the configured permission, SP-CSI, and / or SP-SRS transmission shall be Maintaining the configuration parameters of the SP-CSI and / or SP-SRS, and and / or configured permission to stop transmitting SP-CSI and / or SP-SRS After suspending transmission (configured grant, SP-CSI or SP-SRS), The wireless device may resume transmission (e.g., transmit) when the beam pair link is restored. (Without receiving a start command (MAC CE or DCI) indicating start of transmission).

[0311] FIG. 33 is a flow chart of a SCell BFR procedure according to an aspect of an exemplary embodiment of the present disclosure. 3 shows a chart of a wireless device that performs downlink control for an active cell at 3310. At 3320, the wireless device monitors the channel for a plurality of beam obstruction instances of the cell. In response to detecting the signal, the wireless device initiates a beam failure recovery (BFR) procedure. In response to initiating a BFR procedure, the device determines that a candidate beam is not identified based on a threshold. At 3340, in response to the candidate beam not being identified, the wireless device may In 3350, the wireless device transitions the cell from the active state to the dormant state. 2. Stop monitoring the downlink control channel of the cell based on the transition to the and / or transmit channel state information reports for idle bandwidth portions of the cell. do.

[0312] In one embodiment, in response to a candidate beam not being identified for a beam failure recovery procedure of a cell, In response, the wireless device may transition the cell to a dormant state while keeping the cell awake.

[0313] According to an exemplary embodiment, moving a cell to a dormant state reduces the downlink control of the cell. Transitioning the cell to a dormant state includes ceasing to monitor the control channel. This involves switching an active bandwidth portion of the cell to a dormant bandwidth portion of the cell.

[0314] According to an exemplary embodiment, the wireless device is configured to downlink the cell for a beam failure recovery procedure. The IEEE 802.11b protocol monitors the downlink control channel.

[0315] According to an exemplary embodiment, a wireless device detects multiple beam failure instances of a cell. In response to issuing the command, the beam failure recovery procedure is initiated.

[0316] According to an example embodiment, a wireless device receives a MAC CE indicating a cell activation. The wireless device activates the cell in response to receiving the MACCE.

[0317] According to an exemplary embodiment, the wireless device is configured to determine configuration parameters of a cell that includes multiple bandwidth portions. receiving one or more radio resource control messages including a configuration parameter; The bandwidth portion designates one of the bandwidth portions as a dormant bandwidth portion of the cell.

[0318] According to an example embodiment, the wireless device receives a MAC CE indicating a cell outage. The wireless device may deactivate the cell in response to receiving a MAC CE indicating deactivation of the cell. do.

[0319] In one embodiment, the wireless device receives one or more PDCCHs of an active cell. The wireless device may monitor for a number of beam failure instances on the cell. In response to the initiation of the BFR procedure, the wireless device may initiate a BFR procedure. The wireless device may determine that the candidate beam is not identified based on the threshold. The wireless device may transmit a signal indicating that the candidate beam is not identified. In response to the failure to do so, the cell may transition from the active state to a dormant state. Based on the transition, the wireless device may transition to one or more PDs on the cell during a period of time. Stop monitoring the CCH and transmit CSI reports for the cell during that period. In one embodiment, the wireless device receives one or more PDCCHs at a first monitoring periodicity. In response to transitioning the cell to a dormant state, the wireless device may monitor a second monitoring The wireless device may monitor at least one of the one or more PDCCHs periodically. The decision is based on the channel quality in the absence of any of the multiple reference signals that is greater than a threshold. The wireless device may determine that there is no candidate beam identified from the multiple reference signals. In response to initiating the FR procedure, at least one candidate beam is identified based on a threshold. The wireless device may determine a signal indicating at least one candidate beam for the BFR procedure. In response to the at least one candidate beam being identified, the wireless device may transmit a The wireless device may maintain the cell in an active state. monitor one or more PDCCHs in the cell and send a CSI report for the cell; obtain.

[0320] In one embodiment, the wireless device detects some beam obstruction in the active cell. In response to detecting the BFR stance, the wireless device may initiate a BFR procedure. In response to initiating the procedure, it may be determined that the candidate beam is not identified based on the threshold. The line device may transmit a signal indicating that a candidate beam is not identified. In response to the transmission of the signal, the wireless device may receive a DCI. By using the ACTIVE and HALT states, a cell can be transitioned from an active state to a HALT state. The wireless device stops monitoring one or more PDCCHs on the cell, and the cell The DCI may transmit a CSI report for a cell that has transitioned from an active state to a dormant state. The transition may not include an indication of the transition.

[0321] In one example, the wireless device may transmit a power save indication (e.g., For example, a wake-up indication or go- To receive the power saving indication indicating wake-up, In response, the wireless device may select the next DRX-on hold for the DRX cycle, as shown in FIG. 26A. During the duration, the PDCCH on the cell (PCell or SCell) is monitored. in response to receiving a power saving indication indicating go-to sleep. Then, the wireless device performs the next DRX on duration of the DRX cycle as shown in FIG. 26B. In between, it is possible to skip monitoring the PDCCH on a cell (PCell or SCell). The wireless device can save at a time offset before the DRX on duration of the DRX cycle. The wireless device may receive a power indication (e.g., included in the DCI). If the monitoring of the PDCCH of a cell is skipped during the DRX on duration, The wireless device may continue to report CSI to the power save indicator for each DRX cycle. The PSCH can be repeatedly monitored to receive the

[0322] In one embodiment, if SCell dormancy is supported, the wireless device A first DCI may be received indicating a transition of the SCell from an active state to a dormant state. In response to receiving the indication indicating a transition to a dormant state of the wireless device, Skip CCH monitoring or reduce PDCCH monitoring and PDSC on SCell H, stops transmitting PUSCH on the SCell, and Receive an indication of the transition of the SCell to a dormant state. In response to that, the wireless device may The second BWP can be configured for hibernation or or the default BWP of the SCell. The SCell remains in the dormant state until a second DCI is received indicating a transition to the active state. In response to receiving the second DCI, the wireless device can wake up the SCell from the dormant state. When the SCell is in the active state, the radio The device monitors the PDCCH on the SCell and transmits traffic via the PDSCH on the SCell. The transport block is received via the PUSCH of the SCell. and transmits a CSI report for the SCell.

[0323] In the existing technology, a wireless device has a power saving indication for the DRX off duration. may monitor the power channel (e.g., when the DRX on duration timer is not running) After receiving a power save indication during the DRX off duration, the wireless device The PDCCH monitoring for the next DRX on duration can be started. In response to the power save indication indicating skipping, the wireless device may skip to the power save indication indicating skipping. and / or may skip PDCCH monitoring on the PCell or SCell. may send a CSI report for the active cell in the next DRX on duration.

[0324] In one embodiment, the wireless device receives a PS- Receives power saving indication while monitoring DCI with CRC scrambled by RNTI The power saving indication may include a wake-up indication and a SCell dormancy indication. A wake-up indication containing one bit set to a value of It may indicate that the PDCCH on all cells is monitored for the wake-up duration. The loop indication is that when the bit is set to the second value, the DRX on duration of the next DRX cycle In between, it may indicate skipping monitoring the PDCCH on all cells. The dormancy indication of the ll is one or more of the dormancy indications of the SCell associated with the SCell. When this bit is set to the first value, it transfers the active BWP of the SCell to the rest BWP of the SCell. The SCell dormancy indication may indicate that the associated BWP should be switched to a dormant BWP. When one or more bits of the SCell dormancy indication are set to a second value, It may indicate a switch from a dormant BWP to an active BWP for the SCell.

[0325] In one embodiment, when receiving a wake-up indication and a SCell dormancy indication, the wireless device The device may use existing techniques to apply conflicting actions on one or more SCells. Applying conflicting actions to one or more SCells may result in a power outage of the wireless device. Consumption increases and / or the DRX operation between the base station and the wireless device Improved power saving mechanism and SCell hibernation mechanism. The exemplary embodiment provides a power saving mechanism and a SCell hibernation mechanism. Improve power consumption in wireless devices by combining and / or integrating The exemplary embodiment can improve the power saving and SCell sleep / wake transition delay. Combining and / or integrating the power mechanism and the SCell hibernation mechanism This improves the power consumption of the radio device in DRX operation on the SCell. This can be done.

[0326] In one example embodiment, the wireless device performs power saving operation with the DRX on duration or or DCI indicating whether to transition the SCell between active and dormant states. Transmitting by the station and / or by the wireless device during the DRX off duration Receiving the signal.

[0327] One exemplary embodiment is a combination of one or more of the following: a wake-up indication and a SCell dormant indication. or multiple DCI (with CRC scrambled by PS-RNTI) to the base station. Transmitting by a station and / or by a wireless device and DRX off duration The DRX off duration may include, for example, receiving at the time shown in FIG. 26A and / or based on Figure 26B, the number of symbols / slots before the DRX on duration of the DRX cycle According to an embodiment, the wireless device may select a weight for one or more DCIs. By receiving the backup indication and the SCell dormancy indication, This may reduce the power consumption of the wireless device.

[0328] One exemplary embodiment is to determine a SCell that has been transitioned to a dormant state as an active state. and one or more of the following: SCell sleep indication and wake-up indication In response to receiving the DCI, the PDCCH monitoring on the SCell in the dormant state is One exemplary embodiment may include not applying a wake-up indication for the SC determining an SCell that has transitioned to a dormant state as an active state, and ell receiving one or more DCIs including a dormant indication and a wake-up indication In response to the wake-up table for CSI reporting on the SCell in the hibernate state, In one example, the wake-up indication may include applying a DRX on duration. If it indicates that it is not awake (e.g., skips PDCCH monitoring), the radio The device does not monitor the PDCCH on a dormant SCell during the DRX on duration. The wake-up indication indicates that the DRX on duration is used for waking up (e.g., PDCCH If the wireless device indicates that the SCell is in a dormant state (e.g., Keep SCell in hibernation state (by not applying wake-up indication on SCell) By this, the wireless device transmits the PDCCH on the SCell during the DRX on duration. In one embodiment, the wake-up indication is set to DRX on duration. If the wireless device indicates that it is not currently monitoring the PDCCH (e.g., by skipping PDCCH monitoring), , transmit a CSI report for the dormant BWP of the SCell during the DRX on duration. Example An exemplary embodiment shows the power consumption of a wireless device in a DRX operation on a SCell in a dormant state. This can improve costs.

[0329] FIG. 34 illustrates an example embodiment of a unified power saving operation and SCell hibernation transition. The wireless device receives from the base station a first configuration parameter for a power saving operation (or configuration) and One or more R The first configuration parameter of the power saving operation can be set as shown in FIG. 6B and / or the embodiment of FIG. 27. The configuration parameters are the BWP of the SCell when going to hibernate, Periodic CSI reporting configuration when one or more SCells are in a dormant state The PDCCH configuration may indicate a PDCCH configuration. One or more PDCCH configurations may be in a dormant state, When transitioning one or more DCI formats for a SCell in the PDCCH monitoring It may indicate one or more search spaces / CORESETs on the SCell for

[0330] As shown in FIG. 34, the wireless device transmits a command indicating activation of the SCell (e.g., R RC message, MAC CE, and / or DCI. When configured with l, the command displays each SCell, indicating whether the SCell is started or not. In response to the command, the wireless device may include a plurality of indications relating to the cell. It can be started.

[0331] In one embodiment, the wireless device is configured to determine whether to continue DRX on based on a first configuration parameter. At a first time point before the time, the PDCCH is monitored for receiving a DCI that includes a PS / pause indication. The gap between the first time and the start time of the DRX on duration may be viewed as The PDCCH may be configured in the message or may be predefined to a fixed value. DCI can be a power saving channel based on the configuration parameters of the For example, it may be a CRC scrambled with a dedicated RNTI for the PS-RNTI. The dedicated RNTI may be different from the C-RNTI.

[0332] In one embodiment, the wireless device, while monitoring the PDCCH during the DRX off duration, The wireless device may receive a DCI that includes a PS / pause indication. The indication indicates that the wireless device is performing a power saving operation or the wireless device is ell determine whether to indicate that a hibernation transition should be performed.

[0333] In response to a PS / pause indication indicating a power save operation, the wireless device PDCCH monitoring for the next DRX on duration on the PCell, SCell, etc. In response to a PS / Hibernate indication indicating a power save operation, the wireless device may / If the pause display contains a PS display bitmap, then on one or more active cells, Each bit of the bitmap can skip PDCCH monitoring for the DRX on duration. The wireless device may select the next DRX option corresponding to one of the one or more active cells. skip PDCCH monitoring of one of the active cells for the duration of the alert In response to a PS / pause indication indicating power save operation, the wireless device CSI reporting for the cell may continue, and the CSI reporting may be in the active state. The wireless device may skip PDCCH monitoring. and / or may continue CSI reporting until the end of the DRX on duration. The device may, for example, determine the DRX off duration based on the expiration of the DRX on duration timer. In response to switching to the next DRX sub-channel, the wireless device may stop CSI reporting. During the cycle, monitor the PDCCH to receive a PS / pause indication before the DRX on duration. PS 1000 indicating power saving operation, skipping PDCCH monitoring, and / or / When receiving a pause indication, continue CSI reporting with DRX on duration, DR The process may be repeated, including stopping CSI reporting for X off durations.

[0334] In response to a PS / dormancy indication indicating a dormant state transition of the SCell, the wireless device The SCell is moved from the active state to the dormant state, or from the dormant state to the active state. The PS / Hibernate function can determine whether to transition the SCell to the hibernate state. In response to the stop indication, the wireless device may configure the SCell based on the second configuration parameter. The hibernation action may be performed on the SCell, which may include stopping monitoring the PDCCH on the SCell. stop receiving the PDSCH on the SCell; Stop transmission of any network signals / channels (e.g. PUSCH / PUCCH / SRS / PRACH) and transmitting the first CSI report for the SCell in the dormant state. Respond to a PS / pause indication indicating the transition of the SCell from a dormant state to an active state. Then, the wireless device performs an active action on the SCell in the active state. The active behavior may include monitoring the PDCCH on the SCell, Receiving PDSCH, uplink signal / channel on SCell (e.g., PU SCH / PUCCH / SRS / PRACH) and active SCel sending a second CSI report for the SCell in the dormant state. The first CSI report is sent to the SCell in the active state, and the second CSI report is sent to the SCell in the active state. longer periodicity and / or fewer CSI quantities (e.g., PMI / CQ I / RI / RSRP, etc.) can be configured. When multiple active SCells are configured, The PS / pause indication indicates that the wireless device is in the active SCell state. Each bit in the bitmap indicates whether to transition the The PS / pause indicator bit corresponds to one of multiple active SCells. The wireless device may include a map for determining whether to use another SCell after the SCell state transitions. The SCell remains in hibernation or SCe state until another PS / Hibernation indication is received indicating a state transition. ll may remain active.

[0335] In one embodiment, the PS / pause indication in the DCI indicates that a first value (e.g., 0) indicates power saving mode. A second value (e.g., 1) may indicate SCell dormancy operation. In one embodiment, the DCI indicates that the wireless device is to perform power saving operation for the DRX cycle. or implicitly indicates whether to perform the SCell state transition between the dormant and active states. The DCI, which is a CRC scrambled with the first RNTI, may be generated during the DRX cycle. The DCI, which is a CRC scrambled with the second RNTI, may indicate power saving operation. , may indicate a SCell state transition. The DCI transmitted in the second DCI format may indicate a power saving operation in the RX cycle. , may indicate a SCell state transition. The DCI may set one or more fields to a first predetermined DCI may be set to a value of The field may be set to a second predetermined value to indicate a SCell state transition. The number fields are Frequency Resource Indicator, Time Resource Indicator, MC S indicator, NDI, HARQ process number, SRS indicator, CSI report The device may include at least one of a signal processor, a signal processor interface, a signal processor ...

[0336] FIG. 35 shows an example of a flowchart of PS / pause operation. The wireless device may receive configuration parameters for PS operation and hibernation operation on the SCe. Commands indicating activation of ll (e.g. RRC messages, MAC CE and / or D The wireless device may receive a SCell based on the command. In response to the activation of the cell, the wireless device may transmit a first CSI report for the SCell. The wireless device may start the DRX cycle at some point before the DRX on duration. The DRX cycle may be as shown in FIG. As shown in FIG. 1, the DRX on duration and the DRX off duration may be included. The device receives a PS / pause indication while monitoring the PDCCH at a time before the DRX on duration. The wireless device may operate in a power-saving mode or may transition between an active and a dormant state. In response to a PS / pause indication including a power save indication, the Therefore, the wireless device monitors the PDCCH during the DRX on duration of the DRX cycle. It may skip and / or continue with the first CSI report. In response to the PS / Hibernate state including the pause indication, the wireless device shall During the duration, monitor the PDCCH on the SCell and continue the first CSI report. In response to the PS / pause indication, which indicates the transition of the SCell state from active to pause, In response, the wireless device skips monitoring the PDCCH on the SCell and A second CSI report for the ell may be sent. In response to the PS / pause indication indicating the ell state transition, the wireless device Starts CCH monitoring and sends the first CSI report for the active SCell The wireless device may continue to receive the PS / dormant indication until it receives another PS / dormant indication indicating a SCell state transition. , the SCell state (dormant or active) may be maintained.

[0337] FIG. 36 illustrates an example of PS operation and SCell dormancy. The service receives commands indicating the activation of the SCell (e.g., RRC messages, MAC CE and The wireless device may receive a command to activate the SCell and / or a DCI. In response to the activation of the SCell, the wireless device may activate a first C SI reporting (e.g., periodic) may be initiated, and the first CSI report may be The wireless device is configured for a first PS / SCell in a busy state at a first time. The wireless device may monitor the PDCCH to receive a dormancy indication. A first PS / pause indication may be received during the transition from the active state to the dormant state. In response to a PS / dormancy indication indicating the transition, the wireless device transitions the SCell to the dormant state. During the dormant period of the SCell, the wireless device can H monitoring may be skipped and a second CSI report may be sent for the dormant SCell.

[0338] As shown in FIG. 36, the wireless device may receive a second PS / pause indication at a second time. The second PS / suspended indication may include a wake-up indication. Activates SCell from hibernation based on wake-up indication from PS / Hibernation The SCell may decide to transition to the dormant state or to keep the SCell in the dormant state.

[0339] In one embodiment, the wireless device responds to a second PS / pause indication indicating a wakeup. The second PS / dormant indication can cause the SCell to transition from dormant to active. In one embodiment, the wireless device may not indicate a SCell state transition. The first PS / pause indication regarding the state of the SCell (active or paused) determines that the second PS / pause indication overrides (or has higher priority) At times, the SCell may transition from a dormant state to an active state. Due to the power saving and dormancy indications, downlink signal overhead may be improved.

[0340] In one embodiment, the wireless device may keep the SCell in a dormant state and / or In response to a second PS / pause indication indicating a standby state, one or more DRX on duration on a number of active cells (e.g., PCell or SCell) The second PS / idle indication does not indicate a SCell state transition. In one embodiment, the wireless device may determine a second PS / pause indication. When the first PS / dormancy indication is The state (active or dormant) of the wireless device may be determined independently or separately. In one embodiment, the wireless device may be configured to use a second PS / pause table. The indication is the first PS / pause table regarding the state of the SCell (active or paused). When it decides not to overwrite the indication, it may keep the SCell in a dormant state.

[0341] In one embodiment, the base station may transmit a SCell to a wireless device that is in a dormant state. ll or as a SCell that has been stopped for power saving operation (consider or process) one or more RRC messages, each of which includes a configuration parameter indicating whether to In one embodiment, the base station and / or the wireless device may transmit As a predetermined rule, a dormant SCell is determined as an active SCell (considering In one embodiment, the base station and / or the wireless device may perform a power saving operation. For this purpose, a given rule is to determine a dormant SCell as a deactivated SCell. It can be determined.

[0342] In one embodiment, the wireless device may transmit a first SCell in a dormant state to an activated SCell. ell (e.g., with no or sparse PDCCH monitoring). When the wireless device receives a power save indication, including a power up indication, the wireless device Based on determining the cell as an active SCell, the DRX on duration (e.g., sparse PDCCH monitoring configured for dormant state, or active state The first SCell may be monitored (by PDCCH monitoring configured for the first SCell). go-to sleep indication for SCell, cross slot scheduling, or When receiving a power saving indication that includes a maximum MIMO layer reduction indication, the wireless device may, for example, Based on determining the first SCell in the stopped state as the active SCell, Stop monitoring unnecessary PDCCHs, apply cross-slot scheduling, and / or By applying a reduced maximum MIMO layer on the SCell, the first A power saving indication may be applied to the SCell.

[0343] In one embodiment, the wireless device may assign a first SCell in a dormant state to a deactivated SCell. When a power save indication, including a wake-up indication, is received, the wireless device may determine The device determines the first SCell in the dormant state as the deactivated SCell. Based on this, the monitoring of the first SCell is skipped and other wake-up SCells are monitored during the DRX on duration. The first cell (e.g., PCell or SCell) may be monitored. go-to sleep indication, cross slot scheduling, or maximum MIMO layer reduction When receiving a power saving indication, including a low power indication, the wireless device may, for example, enter a first S Based on determining that the cell is a stopped SCell, the cross slot scheduler By not applying ringing and not applying reduced maximum MIMO layers to the first SCell, Therefore, it is not necessary to apply the power saving indication to the first SCell in the dormant state.

[0344] 37 illustrates an example embodiment of SCell dormancy management. In one example, a wireless device includes: One or more RRC messages containing configuration parameters for multiple cells from the base station The configuration parameters are the wake-up indication and and downlink control channel configuration parameters for receiving DCI including cell idle indication In one embodiment, the configuration parameter may indicate the PS-R The configuration parameters may indicate the control channel resources for reception of the DCI ( For example, time, frequency, beam, periodicity, etc.

[0345] In one embodiment, the wireless device may include a plurality of SCells (e.g., a first SCell and A command (e.g., RRC message, MAC CE and Based on the command, the wireless device may receive multiple SCs and / or DCIs. ell can be started.

[0346] In response to activating a SCell (e.g., a first SCell and a second SCell), In response, the wireless device may start CSI reporting (e.g., periodically) for the SCell. Typically, CSI reporting is configured for an active SCell. The wireless device may monitor the PDCCH on the SCell. may receive downlink packets and / or monitor the PDCCH on the SCell. Based on receiving the DCI during may be transmitted.

[0347] In one embodiment, the wireless device may be configured to switch to a dormant state, indicating a transition (not shown in FIG. 37). Based on the reception of an indication (e.g., DRX on duration), the active BWP of the SCell In one embodiment, the wireless device may switch to a dormant BWP of the SCell. Based on the indication, the wireless device may switch to a dormant BWP for the first SCell. Based on the dormancy indication, it may switch to a non-dormant BWP of the second SCell.

[0348] In one embodiment, the wireless device transmits a DCI (P The wireless device may receive the S-RNTI (along with a CRC scrambled by the S-RNTI). is the DRX cycle (e.g., as shown in FIG. 26A and / or FIG. 26B ). At the time before the on duration, DCI may be received.

[0349] In one embodiment, switching the first SCell to a non-dormant BWP of the first SCell In response to the cell dormancy indication of the DCI indicating from the active state and / or the idle BW of the first SCell. P to the non-suspended BWP of the first SCell. The WP and non-dormant BWP are configured according to the configuration parameters of the first SCell (e.g., one of the above). In one embodiment, the second SCell may be configured as a first RRC message. in response to a cell idle indication of the DCI indicating switching to an idle BWP of the second SCell; The wireless device may transition the second SCell from an active state to a dormant state, and and / or switch from a non-dormant BWP on the second SCell to a dormant BWP on the second SCell The idle BWP and non-idle BWP of the second SCell may be replaced. It consists of the configuration parameters of l (e.g., one or more of the RRC messages mentioned above). obtain.

[0350] In one embodiment, a wake-up indication indicating PDCCH monitoring during the DRX on duration is In response, the wireless device may Based on this, a wake-up indication may be applied on the first SCell. The line device transmits the PDCC on the first SCell during the DRX on duration of the DRX cycle. H. The wireless device may monitor the first SC H during the DRX off duration of the DRX cycle. PDCCH monitoring on the ell may be skipped.

[0351] In one embodiment, in response to a wake-up indication indicating PDCCH monitoring for the DRX on duration, In response, the wireless device may set the SCell to a dormant state based on the dormant second SCell. and monitors the PDCCH of the second SCell during the DRX-on duration of the DRX cycle. The wireless device may skip the second SCell based on the second SCell in the dormant state. Wake-up indication does not have to be applied to the PDCCH of the SCell in the dormant state. By not applying wake-up indications to monitors, power consumption of wireless devices may be improved. .

[0352] FIG. 38 shows an example flow chart of an embodiment. In one embodiment, a wireless device One or more of the following configurations may be used to receive DCI, including wake-up indication and cell dormancy indication: Based on the example of FIG. 37, one or more RRC messages may be received from the base station. The wireless device may implement the following RRC messages: The wireless device may receive a command to activate the cell based on the command. can activate the first BWP of the cell in response to activating the cell. Based on the activation of the first BWP, the wireless device transmits a PDCCH on the first BWP of the cell. may be monitored.

[0353] In one embodiment, the wireless device transmits a DCI including a wake-up indication and a cell dormancy indication. The wake-up indication may be received during the DRX on duration of the next DRX cycle. It may indicate wake-up operations (e.g., PDCCH monitoring and CSI reporting). The backup indication indicates the power saving operation (e.g. , skip PDCCH monitoring and keep CSI reporting).

[0354] In one embodiment, based on receiving the cell outage indication, the wireless device selects a first The cell may be put into a dormant state, which includes switching from a normal BWP to a dormant BWP. The device may stop monitoring the PDCCH on the idle cell. The device will enter hibernation mode regardless of whether the wake-up indicator indicates a wake-up or power-saving operation. In one embodiment, the PDCCH monitoring on the router may be stopped based on the reception of a wake-up indication. Therefore, the wireless device may transmit the CSI level associated with the wake-up indication on the dormant cell. In one embodiment, the port action is applied during the DRX on duration of the DRX cycle. In response to the wake-up indication indicating the CSI report, the wireless device In one example, the DR may transmit a CSI report for the idle BWP of the cell when the DR is in Shows PDCCH monitoring and CSI reporting for DRX on duration of X cycles In response to the wake-up indication, the wireless device may begin monitoring the PDCCH on the dormant cell. may skip and transmit a CSI report for the dormant BWP of the dormant cell.

[0355] 39 shows an exemplary flow chart of one embodiment. At 3910, the wireless device , PDCCH in the DRX on duration of the DRX cycle based on the PS-RNTI Wake-up indication to indicate monitoring and cell dormancy to indicate switching to the dormant bandwidth portion of the cell At 3920, the wireless device receives one or more indications including the indication of cell idleness. Based on the indication, the cell is put into a dormant state, which includes switching to the dormant BWP of the cell. At 3930, the wireless device is configured to transition the cell to a dormant and wake-up indication. During the DRX on duration, the device maintains the cell awake and the downlink control channel of the cell. The UE stops monitoring the channel and sends a CSI report for the idle BWP of the cell.

[0356] According to an exemplary embodiment, the wireless device is configured to allocate an active bandwidth portion of a cell to a dormant In response to switching to the bandwidth portion, active cells may be determined.

[0357] According to an exemplary embodiment, the wireless device is configured to determine the start and end of the DRX on duration of the DRX cycle. During the pre-start period, one or more indications in at least one DCI may be received.

[0358] According to an exemplary embodiment, the channel state information report is generated based on one of the idle bandwidth portions of the cell. Or, it may include one or more reference signal received power values ​​of a plurality of reference signals. The information report may be based on one or more reference signals in the idle bandwidth portion of the cell. The channel state information reports may be configured on idle bandwidth portions of the cells. The channel state information report is a periodic channel state information report transmitted at multiple transmission opportunities having periodicity. The channel state information report may include a semi-persistent channel state information report. The semi-persistent channel state information report may include a plurality of transmissions having periodicity. The semi-persistent channel state information report is sent at the opportunity and / or Triggered by the file status report launch command.

[0359] According to an exemplary embodiment, the wireless device is configured to perform downlink control of the idle bandwidth portion of the cell. You can stop monitoring the channel.

[0360] According to an example embodiment, the wireless device may further include a PS-RNTI that is sequestered by the CRC bits. One or more downlink control signals, including one or more indications, that are scrambled You may receive information.

[0361] According to an example embodiment, in response to the second cell being in a stopped state, the DRX on hold During the duration, the wireless device skips monitoring the downlink control channel of the second cell. , it may skip transmitting the channel state information report for the second cell.

[0362] According to an exemplary embodiment, the cell includes a plurality of cells including a primary cell and a secondary cell. It is a secondary cell of the

[0363] According to an exemplary embodiment, the wireless device includes a single cellular network that includes configuration parameters for a plurality of cells. or multiple Radio Resource Control (RRC) messages. The wireless device may receive a MAC CE indicating activation of the cell. activating a first bandwidth portion as an active bandwidth portion; In response to the signal, the cell may be woken up, the first bandwidth portion being different from the dormant bandwidth portion. and monitors a downlink control channel of the first bandwidth portion of the cell.

[0364] According to an exemplary embodiment, the wireless device receives from the base station a signal including configuration parameters of the cell. The RRC message can be received, including one or more RRC messages, and the configuration parameters can be Indicates whether multiple BWPs are inactive. The configuration parameters include one or more indicators. The PS-RNTI may include one or more downlink control information for receiving the PS-RNTI. The configuration parameters are: downlink control channel resources are configured in the idle bandwidth portion of the cell. The configuration parameters may indicate that the search space is configured in the idle bandwidth portion of the cell. One or more RRC messages may indicate that the first DRX operation has not been performed. The second configuration parameter of the DRX operation may include a second configuration parameter of the DRX operation. Cycle length, DRX cycle start offset, and DRX on for the DRX cycle The one or more RRC messages include a third configuration of the power saving operation. A third configuration parameter of the power saving operation may include a DRX cycle. One or more DRX on durations containing one or more indications for the start of the DRX on duration. a start-up for monitoring a downlink control channel for receiving downlink control information; Includes a time offset indicating the symbol.

[0365] According to an exemplary embodiment, the wireless device receives a MAC CE indicating the outage of a cell. In response to receiving the MAC CE indicating the cell being deactivated, the wireless device may In response to the cell being deactivated, the wireless device may The UE may stop transmitting channel state information reports to the UE.

[0366] According to an exemplary embodiment, the one or more displays are activated from a dormant state of the second cell. The wireless device may further include a second cell dormancy indication indicating a transition to an active state. Based on the cell dormancy indication, the second cell may be transitioned from a dormant state to an active state. , transitioning the second cell from the dormant state to the active state includes: In one embodiment, the switching includes switching from one or more of the first and second bandwidth portions of the second cell to one or more of the second bandwidth portions of the second cell. The plurality of RRC messages may allocate one of the plurality of bandwidth portions of the second cell to the second cell. The second cell may include a configuration parameter indicating the second bandwidth portion of the active cell. Based on the transition to the DRX on state and the wake-up indication, the radio The device monitors a downlink control channel of a second cell and receives a second band of the second cell. The channel state information report for the width portion may be transmitted to the second cell. The report may be based on one or more reference signals in the second bandwidth portion of the second cell. The wireless device may monitor a downlink control channel of the second bandwidth portion of the second cell. The wireless device may view a downlink control channel of the second bandwidth portion of the second cell. While monitoring the uplink status, the wireless device may receive a second DCI indicating an uplink grant. The wireless device may transmit an uplink TB based on the second DCI. The downlink TB may be received based on the second DCI indicating the downlink allocation.

Claims

1. by the wireless device and based on the power saving wireless network temporary identifier; Downlink control channel monitoring during the discontinuous reception (DRX) on duration of a DRX cycle a wake-up indicator indicating that the device is turned on; and a cell dormancy indication indicating a transition of the cell to a dormant state. receiving control information (DCI); transitioning the cell to the dormant state based on the cell dormant indication, The transition includes switching to a dormant bandwidth portion (BWP) of the cell. And, based on transitioning the cell to the dormant state and the wake-up indication, During the DRX on duration, monitoring a downlink control channel of said cell while keeping said cell awake; and transmitting a channel state information report for the dormant BWP of the cell. Hmm, a method.

2. By wireless devices, Downlink control channel monitoring during the discontinuous reception (DRX) on duration of a DRX cycle a wake-up indicator indicating and a pause indication indicating a switch to a pause bandwidth portion of the cell. Receiving and Based on the sleep indication and the wake-up indication during the DRX on duration, monitoring a downlink control channel of the cell while keeping the cell awake. To stop and and transmitting a channel state information report for the idle bandwidth portion. Law.

3. by switching an active bandwidth portion of the cell to the dormant bandwidth portion of the cell; The method of claim 2 further comprising: in response, determining which of the cells are active. Law.

4. The wireless device transmits the one or more DCIs during the DRX off duration. receives a plurality of indications, and the DRX off duration is outside the DRX on duration. The method of claim 2.

5. The channel state information report is based on one or more of the idle bandwidth portions of the cell. The method of claim 2 , comprising one or more reference signal received power values ​​of the reference signal.

6. The channel state information report is based on one or more of the idle bandwidth portions of the cell. The method of claim 2 based on a reference signal.

7. the channel state information report is configured on the idle bandwidth portion of the cell; The method according to claim 2.

8. The channel state information report is transmitted at a plurality of transmission opportunities having periodicity. The method of claim 2 including a channel status information report.

9. The channel state information report includes a semi-persistent channel state information report, Persistent channel state information reports transmitted at multiple transmission opportunities having periodicity; and 3. The method of claim 2, wherein the semi-persistent channel condition report is triggered by a semi-persistent channel condition report activation command. How to.

10. The wireless device receives the downlink control channel of the idle bandwidth portion of the cell. The method of claim 2 , further comprising: ceasing to monitor the

11. The wireless device further comprises a cyclic redundancy check bit that is a power-saving wireless network temporary identification number. one or more images containing said one or more indications, scrambled by the The method of claim 2 , further comprising receiving a plurality of downlink control information.

12. in response to the second cell being in a stopped state, during the DRX on duration, skipping monitoring a downlink control channel of the second cell; and skipping transmitting a channel state information report of the second cell; The method of claim 2 further comprising:

13. 3. The cell of claim 2, wherein the cell is a secondary cell of a plurality of cells including a primary cell. The method described above.

14. One or more Radio Resource Control (RRC) 14. The method of claim 13, further comprising receiving a.) message.

15. 4. The method of claim 3, further comprising: receiving a medium access control element indicating activation of the cell.

2. The method according to claim 2.

16. In response to receiving the medium access control control element, activating a first bandwidth portion of the cell as an active bandwidth portion, activating, the first bandwidth portion being different from the idle bandwidth portion; and monitoring a downlink control channel on the first bandwidth portion of the cell.

16. The method of claim 15, further comprising: starting the cell.

17. one or more RRC messages including configuration parameters of the cell from a base station; and receiving, wherein the configuration parameters are for a plurality of bandwidth portions of the cell. The method of claim 2 , further comprising indicating a pause bandwidth portion.

18. The configuration parameters include one or more downloads that include the one or more indications.

18. The method of claim 17, further comprising: The method described.

19. The configuration parameters are configured to provide a downlink control channel to the idle bandwidth portion of the cell.

20. The method of claim 17, further comprising indicating that a resource is not configured.

20. The configuration parameters are such that a search space is not configured in the idle bandwidth portion of the cell. The method of claim 17, wherein the

21. The one or more RRC messages include a second configuration parameter for DRX operation. and wherein the second configuration parameter of the DRX operation is: The length of the DRX cycle; and A start offset of the DRX cycle; and and a length of the DRX on duration of the DRX cycle. method.

22. The one or more RRC messages are Relative to a start of time, one or more downlink control signals including said one or more indications Indicates the start symbol for monitoring the downlink control channel to receive control information.

20. The method of claim 17, further comprising a time offset.

23. 4. The method of claim 3, further comprising: receiving a medium access control element indicating the deactivation of the cell.

2. The method according to claim 2.

24. in response to receiving the medium access control control element indicating the stopping of the cell; 24. The method of claim 23, further comprising shutting down the cell.

25. In response to stopping the cell, the channel for the idle bandwidth portion of the cell is 25. The method of claim 24, further comprising: ceasing to transmit a kernel status information report. method.

26. The one or more indications indicate a transition of the second cell from a dormant state to an active state.

3. The method of claim 2, further comprising a second cell dormancy indication.

27. transitioning the second cell from the dormant state to the active state based on the second cell dormant indication; and transitioning the second cell from the dormant state to the active state. The transition to a quiescent state includes transitioning the second cell from a quiescent bandwidth portion of the second cell to a quiescent bandwidth portion of the second cell.

27. The method of claim 26, comprising switching to a second bandwidth portion.

28. One or more RRC messages indicate the second bandwidth portion of the second cell.

30. The method of claim 27, including configuration parameters.

29. Transitioning the second cell to the active state and the wake-up indication. During the DRX on duration, monitoring a downlink control channel of the second cell; Transmitting a channel state information report for the second bandwidth portion of the second cell.

28. The method of claim 27, further comprising:

30. The channel state information report for the second cell is 30. The method of claim 29, wherein the one or more reference signals are based on a bandwidth portion of

31. The wireless device controls the downlink of the second bandwidth portion of the second cell.

30. The method of claim 29, further comprising monitoring a channel.

32. Monitoring the downlink control channel of an active cell by a wireless device And, In response to detecting a plurality of beam failure instances of the cell, a beam failure recovery (BFR) is performed. ) initiating the procedure; In response to initiating the BFR procedure, determining that a candidate beam is not identified based on a threshold. To determine Responsive to a candidate beam not being identified, the cell is switched from the active state to a dormant state. and based on transitioning the cell to the dormant state, ceasing to monitor the downlink control channel of the cell; and transmitting a channel state information report for a dormant bandwidth portion of the cell. Hmm, a method.

33. In response to the candidate beam not being identified for the beam failure recovery procedure of the cell, the wireless device by the device, putting the cell into a hibernation state while keeping the cell activated. A method comprising:

34. The transitioning of the cell to the dormant state includes a step of changing a downlink control channel of the cell.

34. The method of claim 33, further comprising: ceasing to monitor the rule.

35. The transitioning of the cell to the dormant state includes reducing an active bandwidth portion of the cell.

34. The method of claim 33, comprising switching to a dormant bandwidth portion of the cell.

36. 34. The method of claim 33, further comprising monitoring a downlink control channel of the cell. Law.

37. said beam failure recovery procedure in response to detecting a plurality of beam failure instances of said cell.

34. The method of claim 33, further comprising initiating.

38. 4. The method of claim 3, further comprising: receiving a medium access control element indicating activation of the cell.

33. The method according to claim 33.

39. activating the cell in response to receiving the medium access control control element.

40. The method of claim 38, further comprising:

40. One or more wireless resources including configuration parameters of the cell including multiple bandwidth portions. and receiving a service control message, the service control message being configured to include a configuration parameter for each of the plurality of 34. The method of claim 33, further comprising designating one of the bandwidth portions as a dormant bandwidth portion of the cell. How to.

41. 4. The method of claim 3, further comprising: receiving a medium access control element indicating the deactivation of the cell.

33. The method according to claim 33.

42. halting said cell in response to receiving said medium access control control element.

42. The method of claim 41, further comprising:

43. 1. A wireless device, comprising: one or more processors; When executed by the one or more processors, the method comprises: A memory storing instructions for carrying out the method according to any one of claims 1 to 42. , wireless devices.

44. When executed by one or more processors, said one or more processors A non-transitory memory device comprising instructions for causing a sensor to perform the method according to any one of claims 1 to 42. Computer-readable medium.

45. 1. A base station, comprising: one or more first processors; When executed by a processor of the present invention, the base station is Based on the low power wireless network temporary identifier, Downlink control channel monitoring during the discontinuous reception (DRX) on duration of a DRX cycle a wake-up indicator indicating and a cell dormancy indication indicating a transition of the cell to a dormant state. a first memory storing first instructions for causing the device to transmit control information (DCI); , a base station including: A wireless device, comprising: one or more second processors; and the one or more when executed by the second processor of the receiving the one or more Downlink Control Information (DCI); transitioning the cell to the dormant state based on the cell dormant indication, The transition includes switching to a dormant bandwidth portion (BWP) of the cell. To do so, based on transitioning the cell to the dormant state and the wake-up indication, During the DRX on duration, monitoring a downlink control channel of said cell while keeping said cell awake; and transmitting a channel state information report for the dormant BWP of the cell. and a second memory storing second instructions for causing a wireless device to 。

46. 1. A wireless device comprising: one or more first processors; When executed by the first processor of the One or more bandwidth portions for a cell in which the bandwidth includes a first bandwidth portion (BWP) and a second bandwidth portion (BWP).

3. Transmit capability information indicating that the system supports a maximum number of multiple-input multiple-output (MIMO) layer configurations. a first memory storing first instructions to transmit a first signal to a wireless device; A base station, comprising: one or more second processors; and When executed by a processor of the present invention, the base station is and, based on the low power wireless network temporary identifier, Downlink control channel monitoring during the discontinuous reception (DRX) on duration of a DRX cycle a wake-up indicator indicating and a cell dormancy indication indicating a transition of the cell to a dormant state. transmitting data control information (DCI); transitioning the cell to the dormant state for the wireless device based on the cell dormant indication; and said transitioning includes transitioning said cell to a dormant bandwidth portion (BWP) of said cell. Transitioning, including switching; based on transitioning the cell to the dormant state and the wake-up indication, During the DRX on duration, A downlink control of the cell for the wireless device is performed while keeping the cell active. Stop transmitting your Control Channels, and receiving a channel state information report for the idle BWP of the cell; and a second memory storing second instructions to cause the base station to

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