Power saving and cell dormancy 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 of related applications This application is a result of U.S. Provisional Application No. 62 / 908,487, filed on September 30, 2019. The interests asserted are incorporated herein by reference in their entirety. [Overview of the project] [Means for solving the problem]

[0002] This disclosure describes various embodiments of how the disclosed technology can be implemented. Examples of how the disclosed technology can be put into practice in environments and scenarios It is presented as follows. Those skilled in the art in the relevant field will be able to read the form and details without departing from the scope. It should be clear that various changes can be made. In fact, after reading the specification, Methods for implementing alternative embodiments will become apparent to those skilled in the art. The embodiments of this disclosure should not be limited to any of the exemplary embodiments. The details will be described with reference to the accompanying drawings. Limitations, features, etc. from the disclosed exemplary embodiments and / or elements are combined to create further embodiments within the scope of this disclosure. This is possible. Diagrams highlighting functions and benefits are shown for illustrative purposes only. Disclosed architecture The tool is sufficiently flexible and configurable so that it can be used in ways other than those shown. For example, any action listed in a flowchart may be one of several embodiments. They can be rearranged or used only as optional elements. [Brief explanation of the drawing]

[0003] Some of the various embodiments of this disclosure are described herein with reference to the drawings. It is described.

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

[0005] [Figure 2] Figures 2A and 2B show a new radio (NR) user plane and a control plane protocol stack, respectively.

[0006] [Figure 3] Figure 3 shows an example of services provided between protocol layers of the NR user plane protocol stack of Figure 2A.

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

[0008] [Figure 4B] Figure 4B shows an example of the format of the MAC sub-header in the MAC PDU.

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

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

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

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

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

[0014] [Figure 10A] Figure 10A shows three carrier aggregation configurations, each having two component carriers.

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

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

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

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

[0019] [Figure 13] Figures 13A, 13B, and 13C show a 4-step competition-based random access procedure, a 2-step competition-free random access procedure, and another 2-step random access procedure, respectively.

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

[0021] [Figure 14B]Figure 14B shows an example of CCE~REG mapping for DCI transmissions during CORESET and PDCCH processing.

[0022] [Figure 15] Figure 15 shows an example of a wireless device that communicates with a base station.

[0023] [Figure 16] Figures 16A, 16B, 16C, and 16D show exemplary structures for uplink and downlink transmission.

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

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

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

[0027] [Figure 19] Figure 19 shows examples of multiple LCIDs in a downlink.

[0028] [Figure 20] Figure 20 shows examples of multiple LCIDs in an uplink.

[0029] [Figure 21] Figures 21A and 21B show examples of SCell startup / shutdown MAC CEs.

[0030] [Figure 22] Figures 22A, 22B, and 22C show examples of SCell hibernation MAC CE.

[0031] [Figure 23]Figure 23 shows BWP management according to one embodiment of the exemplary embodiments of this disclosure.

[0032] [Figure 24] Figure 24 shows a DRX configuration according to one embodiment of the exemplary embodiments of this disclosure.

[0033] [Figure 25] Figure 25 shows a management DRX timer according to one embodiment of the exemplary embodiments of the present disclosure.

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

[0035] [Figure 27] Figure 27 shows a power saving mechanism according to one embodiment of the exemplary embodiments of this disclosure.

[0036] [Figure 28] Figure 28 shows beam fault recovery on a SCell according to one embodiment of the exemplary embodiments of this disclosure.

[0037] [Figure 29] Figure 29 shows beam fault recovery on a SCell according to one embodiment of the exemplary embodiments of the present disclosure.

[0038] [Figure 30] Figure 30 is a flowchart of beam fault recovery on an SCell according to an exemplary embodiment of the present disclosure.

[0039] [Figure 31] Figure 31 shows beam fault recovery on an SCell according to one embodiment of the exemplary embodiments of the present disclosure.

[0040] [Figure 32] Figure 32 shows beam fault recovery on an SCell according to one embodiment of the exemplary embodiments of the present disclosure.

[0041] [Figure 33] Figure 33 shows an example of an embodiment according to one aspect of the exemplary embodiments of the present disclosure.

[0042] [Figure 34] Figure 34 shows a wake-up operation and SCell pause management according to one embodiment of the exemplary embodiments of this disclosure.

[0043] [Figure 35] Figure 35 is a flowchart of wake-up operation and SCell pause management according to one embodiment of the exemplary embodiments of this disclosure.

[0044] [Figure 36] Figure 36 shows a wake-up operation and SCell pause management according to one embodiment of the exemplary embodiments of this disclosure.

[0045] [Figure 37] Figure 37 shows a wake-up operation and SCell pause management according to one embodiment of the exemplary embodiments of this disclosure.

[0046] [Figure 38] Figure 38 is a flowchart of wake-up operation and SCell pause management according to one exemplary embodiment of the present disclosure.

[0047] [Figure 39] Figure 39 is a flowchart of the wake-up operation and SCell pause management according to an exemplary embodiment of the present disclosure. [Modes for carrying out the invention]

[0048] The embodiments may be configured to operate as needed. The disclosed mechanism is an example. For example, wireless devices, base stations, wireless environments, networks, and combinations of the above, can be used to identify It may be implemented when the criteria are met. An example of the criteria is, for example, a wireless device or Network node configuration, traffic load, initial system settings, packet size, traffic It may be based at least partially on the Fick characteristics, a combination of the above, etc. One or When multiple criteria are met, various exemplary embodiments can be applied. Therefore, Therefore, it is possible to implement exemplary embodiments that selectively implement the disclosed protocols. It is possible.

[0049] The base station can mix and communicate with wireless devices. Wireless devices and / or Base stations can support multiple technologies and / or multiple releases of the same technology. Yes, it is possible. Depending on the category and / or capabilities of the wireless device, there are several options. It may have a few specific capabilities. This disclosure refers to a base station that communicates with multiple wireless devices. In this case, this disclosure may refer to a subset of all wireless devices within the coverage area. This disclosure includes, for example, a predetermined capability and is located in a predetermined sector of a base station, a predetermined L Multiple wireless devices of TE or 5G release may be referred to in this disclosure. Multiple wireless devices, selected multiple wireless devices, and / or disclosed methods Referencing a subset of all wireless devices within a coverage area, which are to be executed according to the following: This is possible. Multiple base stations or multiple base stations in a coverage area that cannot comply with the disclosed method. Wireless devices may exist. For example, those wireless devices or base stations may be using LTE or It runs on an older release of 5G technology.

[0050] In this specification, "a" and "an" and similar phrases mean "at least one" and "one" It is interpreted as "or plural". Similarly, any term ending in the suffix "(s)" is interpreted as "minor". This should be interpreted as "at least one" and "one or more." In this specification, The term "may" is interpreted as "for example, it may be." In other words, the term "m "ay" is one example of a phrase following the term "may" that is one of several appropriate possibilities, various This indicates that it may or may not be used in one or more embodiments. When used in a specification, the terms "comprises" and "consist of" "Lists of" enumerates one or more components of the elements being described. The word "comprises" is interchangeable with "includes". It does not exclude unlisted components included in the listed elements. In contrast, it consists of "(consists of)" means the complete set of one or more components of the element being described. Provides an enumeration. Where used herein, the term "based on" means, for example, "based solely on". Rather than interpreting it as "based on," it should be interpreted as "based on, at least partially." When used in a specification, the term "and / or" means any of the enumerated elements. It represents a possible combination. For example, "A, B, and / or C" means A, B, C, A and It can represent B, A and C, B and C, or A, B and C.

[0051] If A and B are a set, and all elements of A are also elements of B, then A is a subset of B. This is called a set. In this specification, only non-empty sets and subsets are considered. For example, Possible subsets of B={cell1, cell2} are {cell1, {cell2, and {cell 1. Cell 2}. "Based on" (or equivalently, "at least on") The phrase is one or more of the various embodiments of the phrase that follows the term "based on". This is one example of a multitude of preferred possibilities, which may or may not be used. This indicates the phrase "in response to" (or equivalently, "at least in response to"). The phrase following the phrase "in response to" is used in one or more of the various embodiments. It is one embodiment of a multitude of preferred possibilities, some of which may be present and others which may not. This indicates that. The phrase "according to" (or equivalently "at least according to") is a french phrase. The phrase following "depending on" is used in one or more of the various embodiments. This demonstrates that this is one embodiment of a multitude of preferred possibilities, which may or may not be used in combination. The phrase "to adopt / use" (or equivalently, "at least adopt / use") is a phrase that When the phrase following "adoption / use" is used in one or more of the various embodiments, This demonstrates that this is one example of a multitude of appropriate possibilities, some of which may not be the case.

[0052] The term "configured" refers to a device, regardless of whether it is in an operational or non-operational state. This may relate to the capacity of the device. "Configured" means whether the device is in an operational state or a non-operational state. Whether or not, mentioning specific device settings that affect the device's operating characteristics It can also be done in other words, hardware, software, firmware, registers, Molly values ​​and the like indicate that a device is operating or not providing certain characteristics. It can be "configured" within the device, regardless of whether it is in an operational state. Terms such as "control messages that are generated" apply regardless of whether the device is operating or not. Control messages can be used to configure specific characteristics in a device, This refers to parameters that can be used to implement specific actions in the device. It can mean to possess.

[0053] In this disclosure, parameters (or equivalent fields, or information elements: IE) are referred to as such. (ru) may contain one or more information objects, and each information object is It may contain one or more other objects. For example, parameter (IE)N The parameter (IE)M contains parameter (IE)K If parameter (IE) K contains parameter (information element) J, for example, N is K is included, and N is included, J is included. In exemplary embodiments, one or more messages are multiple When it includes a number of parameters, it means that one of the multiple parameters is... Or it is included in at least one of several messages, but one or more messages This means that it does not need to be included in each of the pages.

[0054] Furthermore, many of the features presented above can be expressed by using "may" or parentheses. It is described as optional. For the sake of brevity and readability, this disclosure is described as follows: Explicitly specify all possible changes that can be obtained by selecting from a set of optional features. It is not explicitly stated. This disclosure shall be construed as explicitly disclosing all such changes. For example, a system described as having three optional features is seven One of the three possible features, or any two of the three features, It can be embodied by three of its three characteristics.

[0055] Many of the elements described in the disclosed embodiments can be implemented as modules. The module then performs a defined function and provides a defined interface to other elements. It is defined as an element having [a certain characteristic]. The module described in this disclosure is hardware, [a certain characteristic]. Software, firmware, and wetware combined with dware (e.g., biological It may be implemented using hardware with scientific elements, or a combination thereof. They can be considered equivalent in terms of behavior. For example, a module is a hardware machine ( C, C++, Fortran, Java (registered trademark), Basic, Matlab (registered trademark) (Trademarks, etc.) or Simulink, Stateflow, GNU Octave, or a computer configured to run LabVIEWMathScript - Can be implemented as a software routine written in a language. Discrete or programmed Physical hardware that incorporates RAM-capable analog, digital, and / or quantum hardware. It may also be possible to implement modules using software. Programmable hardware Examples of wear include computers, microcontrollers, microprocessors, and special Application-oriented integrated circuits (ASICs), field-programmable gate arrays (FPGAs) This includes complex programmable logic devices (CPLDs). Microcontrollers, microprocessors, and microprocessors are assembled in C, C Programmed using languages ​​such as ++. FPGAs, ASICs, and CPLDs are used in many applications. In this case, the programmable device has limited functionality, and the connections between internal hardware modules are configured accordingly. Hardware Description Language (VHDL) or Verilog, etc. It is programmed using a Wear Description Language (HDL). It achieves the results of a functional module. To achieve this, the above techniques are often used in combination.

[0056] Figure 1A shows an embodiment of a mobile communication network 100 in which an embodiment of the present disclosure may be implemented. As shown, the mobile communication network 100 is implemented, for example, by a network operator. This could be a public land mobility network (PLMN). As shown in Figure 1A, The mobile communication network 100 includes a core network (CN) 102 and a wireless access network. Includes a twerk (RAN) 104 and a wireless device 106.

[0057] CN102 provides the wireless device 106 with a public DN (e.g., the Internet). One or more data networks, such as private DNs and / or intra-operator DNs. It can provide an interface to the network (DN). Part of the interface function and Then, CN102 provides an end-to-end connection between the wireless device 106 and one or more DNs. It can set up the connection, authenticate the wireless device 106, and provide charging functionality.

[0058] RAN104 wirelessly controls CN102 via wireless communication over the air interface. It can connect to chair 106. As part of wireless communication, RAN104 is used for scheduling. It can provide wireless resource management and retransmission protocols. The communication direction from AN104 to wireless device 106 is known as the downlink, and is called the air On the interface, the communication direction from wireless device 106 to RAN 104 is uplink. It is known as [this]. Downlink transmission uses frequency division duplication (FDD), time division duplication ( Using TDD and / or some combination of two redundancy techniques, It can be separated from link transmission.

[0059] The term "wireless device" is used throughout this disclosure to refer to any situation where wireless communication is required or available. This term refers to and is used to encompass mobile devices or fixed (non-portable) devices. It is possible. For example, wireless devices include telephones, smartphones, tablets, and computers. - Laptops, sensors, meters, wearable devices, the Internet of Things (IoT) devices, roadside units (RSUs), relay nodes, automobiles, and / or It could be any combination of those. The term wireless device is a user equipment (UE). ), user terminal (UT), access terminal (AT), portable station, handset, This includes other terms, including wireless transceiver units (WTRUs) and / or wireless communication devices. do.

[0060] RAN104 may include one or more base stations (not shown). (Term: base station) This refers to Node B (associated with UMTS and / or 3G standards), and evolved Node B. (Related to eNB, E-UTRA and / or 4G standards), Remote Wireless Head (RRH), Baseband processing units coupled to one or more RRHs, donor node coverage Repeater nodes or relay nodes used to extend the range area, next-generation evolution Node B (ng-eNB), generating Node B (gNB, associated with NR and / or 5G standards) ), access point (AP, e.g., WiFi or other appropriate wireless communication standard) It refers to and encompasses (i.e., This may be used throughout this disclosure. The base station has at least one gNB central unit. (gNB-CU) and may include at least one gNB-distributed unit (gNB-DU) ru.

[0061] The base station included in RAN104 communicates with the radio device 106 over the air interface. It may include one or more sets of antennas for transmitting signals. For example, one or more A base station has three antenna sets to control three cells (or sectors) respectively. It may include a cell. The size of the cell is determined by the number of transmitters that a receiver (e.g., a base station receiver) operates on in the cell. It is determined by the range over which transmissions from a transmitter (e.g., a wireless device transmitter) can be successfully received. It is possible. Together, base station cells support the mobility of wireless devices across a wide geographical area. This can provide wireless coverage to the wireless device 106 over a wide area.

[0062] In addition to the three sector sites, other base station implementations are also possible. For example, RAN10 One or more base stations in 4 have sectors that are more than three or fewer than three. - It can be implemented as a site. One or more base stations of RAN104 are access points As a component, a baseband processing unit coupled to multiple remote wireless heads (RRHs) and Repeats are used to extend the coverage area of ​​donor nodes. It can be implemented as a data or relay node. Baseband processing unit coupled to RRH The base station may be part of a centralized or cloud RAN architecture. The processing units are centralized within a pool of baseband processing units, or virtual It may be converted. The repeater node amplifies the radio signal received from the donor node. It can be called and rebroadcast. A relay node has the same / similar functions as a repeater node. It is possible to decode the radio signal received from the donor node, amplify the radio signal, and Noise can be removed before rebroadcasting.

[0063] RAN104 is a mackerel with a similar antenna pattern and similar high-level transmit power. It can be deployed as a homogeneous network of Losell base stations. RAN104 is a heterogeneous network. It can be deployed as a work. In heterogeneous networks, small cell base stations can be used, for example. , overlapping coverage area with the relatively large coverage area provided by macrocell base stations Small coverage areas can be provided, such as edge areas. Rear is an area with high data traffic (or a so-called hotspot), or M It can be provided in areas with weak cross-cell coverage. An example of a small cell base station is... In order of decreasing coverage area, microcell base stations, picocell base stations, and femtocell base stations are used. Examples include cell base stations or home base stations.

[0064] The Third Generation Partnership Project (3GPP®) is the mobile body shown in Figure 1A. Proposes global standardization of mobile communication network specifications similar to communication network 100. Formed in 1998 for the purpose of providing [something]. To date, 3GPP (registered trademark) has been established for the Univers. The third-generation (3G) network known as the UMTS Mobile Communications System, The fourth generation (4G) network, also known as Long-Term Evolution (LTE) The fifth-generation (5G) network, also known as the 5G system (5GS), We are producing specifications for third-generation mobile networks. Embodiments of this disclosure are for next-generation The RAN (NG-RAN) of the 3GPP (registered trademark) 5G network The embodiments are described by reference to the RAN104 in Figure 1A, and earlier 3G and 4G networks. Work RAN, and future networks that have not yet been specified (e.g., 3GPP) Applicable to RANs of other mobile communication networks such as (registered trademark) 6G networks. This is possible. NG-RAN is a 5G radio access technology known as New Radio (NR). It implements 4G radio access technology or non-3GPP® radio access technology. It can be supplied to implement other wireless access technologies.

[0065] Figure 1B shows a mobile communication network 1 of another embodiment in which embodiments of the present disclosure may be implemented. It indicates 50. The mobile communication network 150 is, for example, by a network operator This could be a PLMN that is executed as shown in Figure 1B, mobile communication network 15 0 is the 5G core network (5G-CN) 152, NG-RAN 154, and UE1 This includes 56A and UE156B (collectively referred to as UE156). These components are shown in Figure 1A. To implement and operate in the same or similar manner as the corresponding components described in relation to this. It is possible.

[0066] 5G-CN152 connects to UE156, public DNs (e.g., the internet), Access to one or more DNs, such as private DNs and / or in-operator DNs. It provides an interface. As part of its interface functionality, the 5G-CN152 is Set up an end-to-end connection between the UE156 and one or more DNs. UE156 certified and capable of providing charging functionality. 3GPP(registered trademark) 4G network Compared to CN, the basis of 5G-CN152 is a service-based architecture. This is possible. This is because the architecture of the nodes that make up 5G-CN152 is different from other networks. It is defined as a network function that provides services through an interface to work functions. This means that it can be defined as a dedicated or shared network function. As a hardware-based network element, it operates on dedicated or shared hardware. As a software instance, or on a platform (e.g., cloud-based) It can be implemented in several ways as a virtualization function instantiated on the platform. It is possible.

[0067] As shown in Figure 1B, 5G-CN152 is, as can be easily explained, one in Figure 1B As shown in the component AMF / UPF158, it has access and mobility management functions ( Includes AMF)158A and User Plane Function (UPF)158B. UPF158 B can function as a gateway between NG-RAN154 and one or more DNs. UPF158B is used for packet routing and forwarding, packet inspection and user Enforcement of plain policy rules, reporting of traffic usage, and targeting of one or more DNs Uplink classification to support Rough Flow routing, on the user plane In contrast, Quality of Service (QoS) processing (e.g., packet filtering, gating) (uplink / downlink rate implementation, and uplink traffic verification), Features such as downlink packet buffering and downlink data notification triggers. It can perform the following: The UPF158B is an intra / inter-wireless access technology (RAT) mobile device. A key anchor point, an external protocol interconnected to one or more DNs ( Data Unit (PDU) session point and / or branch point (packet) It can function as a hub and support multi-homed PDU sessions. UE156 is, The service is received via a PDU session, which is a logical connection between the UE and DN. It can be configured as follows.

[0068] AMF158A terminates non-access layer (NAS) signaling, NAS signaling Security, Access Layer (AS) security control, 3GPP® Access Network Inter-CN node signaling for network mobility, idle mode UE reach Possibilities (e.g., control and execution of paging resends), registration area management, within the system and Access includes cross-system mobility support, access authentication, and roaming permission checks. Access permissions, mobility management controls (subscriptions and policies), network slices It performs functions such as support for Session Management and / or selection of Session Management Function (SMF). Yes, it is possible. NAS can also refer to a function that operates between CN and UE, while AS refers to a function that operates between UE and RA. This can refer to a function that operates between N values.

[0069] 5G-CN152 is one or more not shown in Figure 1B for clarity. It may include additional networking capabilities. For example, the 5G-CN152 is a session management device. Function (SMF), NR repository function (NRF), policy control function (PCF), network Auto exposure function (NEF), Unified Data Management (UDM), Application function (AF), It may also include one or more of the following: and / or Authentication Server Functions (AUSF).

[0070] NG-RAN154 uses 5G-CN152 via wireless communication over the air interface. It can then be connected to UE156. NG-RAN154 is connected to gNB160A and gNB16 One or more gNBs (collectively gNBs160) shown as 0B and / or These are one or more shown as ng-eNB162A and ng-eNB162B. This may include ng-eNB (collectively ng-eNBs162). gNBs160 and ng -eNBs162 can be more generally called a base station. gNB160 and ng-e NB162 is one of the antennas for communicating with UE156 over the air interface. It may include multiple sets. For example, one or more gNB160 and / or n One or more g-eNB162 units control three cells (or sectors) respectively. It may include three antenna sets for this purpose. Together, gNBs160 and ng- The eNBs162 cells are designed to support UE mobility across a wide geographical area. Therefore, it can provide wireless coverage to the UE156.

[0071] As shown in Figure 1B, gNB160 and / or ng-eNB162 are NG interfaces. - It may be connected to the 5G-CN152 via the interface, or via the Xn interface It can connect to other base stations. The NG and Xn interfaces are Internet Pro Transport networks such as the Tocol (IP) transport network The above can be established using direct physical connections and / or indirect connections. gNB s160 and / or ng-eNBs162 are connected to UE1 via the Uu interface. 56 can be connected. For example, as shown in Figure 1B, gNB160A is Uu interface It can be connected to the UE156A via the NG, Xn, and Uu interfaces. It is associated with the protocol stack. The protocol associated with the interface The Tokolstack uses the net shown in Figure 1B to exchange data and signaling messages. It may be used by work elements, and consists of two planes: a user plane and a control plane. It may include lanes. The user plane can process data of interest to the user. The control plane processes the signaling messages of interest to the network elements. It is understandable.

[0072] gNB160 and / or ng-eNB162 are one or more NG interfaces Depending on the carrier, one or more AM252s such as AMF / UPF158, 5G-CN152, etc. It can be connected to the F / UPF function. For example, the gNB160A can connect to the NG user plane (N The GU interface connects to the UPF158B of the AMF / UPF158. Obtain. The NG-U interface allows for user interaction between the gNB160A and UPF158B. We can supply PDUs (e.g., unguaranteed supply). The gNB160A is an NG control unit. It can be connected to the AMF158A using the Lane (NG-C) interface. Interfaces include, for example, NG interface management, UE context management, and UE. Mobility management, NAS message forwarding, paging, PDU session management and configuration It can provide forwarding and / or sending of warning messages.

[0073] The gNB160 directs NR user playback to the UE156 on the Uu interface. It can provide a first and control plane protocol termination. For example, the gNB160A provides a first On the Uu interface associated with the protocol stack, towards UE156A It can provide NR user plane and control plane protocol termination. ng-eNB s162 is directed towards UE156 on the Uu interface, Evolved UMT Terrestrial Radio Access (E-UTRA) User Plane and Control Plane Protocol Termination The term "UTRA" may be used to refer to 3GPP® 4G wireless access technology. For example, ng-eNB162B is associated with the second protocol stack. On the interface, the E-UTRA user plane and control are directed towards the UE156B. It can provide a plain protocol termination.

[0074] The 5G-CN152 is described as being configured to handle NR and 4G radio access. As stated, a person skilled in the art would know that NR operates in a "non-standalone mode" on the 4G core network. You will understand that it may be possible to connect in a mode known as "[...]". In standalone operation, the 4G core network is used to control plane functions (for example). Provides (or at least supports) initial access, mobility, and paging. (To) Only one AMF / UPF158 is shown in Figure 1B, but one gNB or ng-eNB is connected to multiple AMF / UPF nodes to provide redundancy, and / Alternatively, the shared load can be loaded across multiple AMF / UPF nodes.

[0075] As discussed, in Figure 1B, the interfaces between network elements (e.g., U The u, Xn, and NG interfaces exchange data and signaling messages. It may be associated with the protocol stack used by the network element for this purpose. The Rotokorstack has two planes: a user plane and a control plane. This may include. The user plane may process data of interest to the user. The control plane processes signaling messages of interest for network elements. It is possible.

[0076] Figures 2A and 2B show the Uu interface between UE210 and gNB220, respectively. This shows an example of an NR user plane and NR control plane protocol stack for a face. The protocol stack shown in Figures 2A and 2B is, for example, the UE shown in Figure 1B. The same or They could be similar.

[0077] Figure 2A shows the NR user interface including five layers implemented in UE210 and gNB220. The lane protocol stack is shown. At the bottom of the protocol stack is the physical layer (PHYs) 2. 11 and 221 provide transport services to the upper layers of the protocol stack. This can also correspond to Layer 1 of the Open Systems Interconnection (OSI) model. PHY211 And the following four protocols on 221 are Media Access Control Layer (MAC) 212 and 222, Wireless Link Control Layer (RLC) 213 and 223, Packet Data Convergence Rotol Layer (PDCP) 214 and 224, and Service Data Applications This includes protocol layers (SDAP) 215 and 225. Together, these four protocols The col can constitute layer 2 or the data link layer of the OSI model.

[0078] Figure 3 shows the service provided between the protocol layers of the NR user plane protocol stack. Examples of screws are shown. Starting from the top of Figures 2A and 3, SDAP215 and 2 25 can perform QoS flow processing. UE210 is the logical between UE210 and DN. A connection can be made, and services can be received via a PDU session. A PDU session is It may have one or more QoS flows. CN's UPF (e.g., UPF158B) This relates to QoS requirements (e.g., latency, data rate, and / or error rate). Based on this, IP packets are mapped to one or more QoS flows in the PDU session. It is possible. SDAP215 and 225 have one or more QoS flows and one or It is possible to perform mapping / unmapping between multiple data radio bearers. QoS flow Mapping / unmapping between the data wireless bearer and the SDAP in gNB220 This can be determined by 225. SDAP215 in UE210 receives from gNB220. QoS flow and data radio bearer via reflected mapping or control signaling You can be notified about the mapping between [the two points]. For reflection mapping, use gNB220. The SDAP225 receives downlink packets via the UE210's SDAP215. The system detects the issue and decides whether to map / unmap the QoS flow and the data radio bearer. It can be marked with a QoS flow indicator (QFI).

[0079] PDCP214 and PDCP224 need to transmit over the air interface. 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) (To ensure that the message originates from the intended source) PDC may take action. P214 and 224 are used, for example, to retransmit unsent packets, or within a packet sequence. For delivery and rearrangement, as well as for handover within the gNB, duplicate received packets It may be possible to remove packets. PDCP214 and 224 may receive packets. To improve this, the receiver may perform packet duplication to remove any duplicate packets. Packet duplication can be useful for services that require high reliability.

[0080] Although not shown in Figure 3, PDCP214 and 224 are used in dual connection scenarios. This allows for mapping / unmapping between the split radio bearer and the RLC channel. Dual connection means that the UE is two cells, or more generally, a master cell group (MC). Connecting to two cell groups, G) and the Secondary Cell Group (SCG) This is the technology that makes it possible. The split bearer serves as a service to SDAP215 and 225. A single radio bearer, such as one of the radio bearers provided by PDCP214 and 224. This is when the process is handled by a cell group with a double connection. PDCP214 and 2 24 maps divided radio bearers between RLC channels belonging to a cell group. The lock can be released.

[0081] RLC213 and 223 receive copies from MAC212 and 222, respectively. Data unit segmentation, retransmission via automated repeat requests (ARQ), and Removal can be performed. RLC213 and 223 are in transparent mode (TM). Supports three transmission modes: Unacknowledged Response Mode (UM), and Acknowledged Response Mode (AM). It is possible. Based on the transmission mode in which RLC is operating, RLC may perform the function indicated. One or more of these may be performed. This RLC configuration is numerology and / or transmission time This can be done on a per-logical channel basis, independent of the time interval (TTI) duration. (See Figure 3) Thus, RLC213 and 223 serve PDCP214 and 224, respectively. It can provide an RLC channel.

[0082] MAC212 and MAC222 are for logical channel multiplexing / multiplexing / demultiplexing, and / or It can perform mapping between logical channels and transport channels. Multiplexing / Multiple Heavy separation is performed on transport blocks (TB) delivered to / from PHY211 and 221. Multiplexing / demultiplexing of data units belonging to one or more logical channels to / from ) It may include. MAC222 uses dynamic scheduling to schedule between UEs. It can be configured to perform tracking, scheduling information reporting, and priority processing. Scheduling is done using gNB220 (MAC22) for downlink and uplink. This can be done in 2). MAC212 and 222 are hybrid automatic repetitive requests (H ARQ) (For example, in the case of carrier aggregation (CA), one HARQ entry per carrier Through error correction and logical channel prioritization, the UE210's logical channels It can be configured to perform priority processing and / or padding between cells. MAC21 2 and MAC222 are one or more numeric and / or transmission timings It can be supported. In one embodiment, by mapping restrictions in logical channel prioritization The logical channel can use any numeric and / or transmission timing. It can control the service. As shown in Figure 3, MAC212 and 222 are service This can provide logical channels to RLC213 and 223.

[0083] PHY211 and 221 are used to send and receive information over the air interface. Mapping of transport channels to analog channels and digital and analog signals Processing functions can be performed. These digital and analog signal processing functions include, for example, coding This may include modulation / decoding and modulation / demodulation. PHY211 and 221 are multi-antenna. Mapping can be performed. As shown in Figure 3, PHY211 and 221 are services and This allows for the provision of one or more transport channels to MAC212 and 222. ru.

[0084] Figure 4A shows the downlink data flow through the NR user plane protocol stack. An example is shown. Figure 4A shows three IP packets through the NR user plane protocol stack. This shows the downlink data flow of ket(n, n+1, and m) on the gNB220. Generates two TBs. Uplink data through the NR user plane protocol stack. Tough flow can be similar to the downlink data flow shown in Figure 4A.

[0085] Figure 4A shows the downlink data flow, where the SDAP225 sends one or more QoS files. Three IP packets were received from the low, and the three packets were mapped to the wireless bearer. It will start at [time]. In Figure 4A, SDAP225 sends IP packets n and n+1 to the first [time]. Map the IP packet m to the second wireless bearer 404, which is then mapped to the line bearer 402. The SDAP header (labeled "H" in Figure 4A) is added to the IP packet. Data units from / to higher protocol layers are handled by lower protocol layers. It is called a bis data unit (SDU) and is a data unit that sends data to / from lower protocol layers. The next step is called a protocol data unit (PDU) in a higher protocol layer. (Figure 4A) As shown, the data unit from AP225 uses a lower protocol layer, PDCP22. It is an SDU of 4 and a PDU of SDAP225.

[0086] The remaining protocol layer in Figure 4A performs the relevant functions (for example, with respect to Figure 3) and A corresponding header can be added, and each output can be forwarded to the next lower layer. For example, PDCP2 24 can perform IP header compression and encryption and forward its output to RLC223. The RLC223 can be optionally configured (for example, as shown for IP packet m in Figure 4A). It can perform segmentation and transfer its output to MAC222. The AC222 may multiplex several RLC PDUs, and the MAC subheader may be R It can be attached to the LC PDU to form a transport block. In NR, as shown in Figure 4A. Thus, the MAC subheader can be distributed across the entire MAC PDU. In LTE, MA The C subheader can be placed entirely at the beginning of the MAC PDU. NR MAC PDU structure The MAC PDU subheader is calculated before the complete MAC PDU is assembled. Therefore, processing time and associated delays can be reduced.

[0087] Figure 4B shows an example of the MAC subheader format in a MAC PDU. The C subheader contains the length (in bytes) of the MAC SDU that the MAC subheader supports. The SDU length field indicates units, etc., and MAC SDU supports the multiplexing process. A logical channel identifier (LCD) is used to identify the logical channel initiated for support. The flag (F) to indicate the size of the SDU length field, and the flag It includes a reserved bit (R) field.

[0088] Figure 4B further shows MAC PD by MAC such as MAC223 or MAC222. Figure 4B shows the MAC control element (CE) inserted into U. For example, Figure 4B shows the MAC PDU inserted into U. The two MAC CEs that were received are shown. MAC CEs are used for downlink transmission (shown in Figure 4B). (To enable this) MAC PDU startup and MAC P It can be inserted at the end of DU. MAC CE is used for in-band control signaling. Obtain. Examples of MAC CE include buffer status reports and power headroom reports. MAC CE for scheduling-related tasks such as Schedule, PDCP duplicate detection activation / deactivation, channel Condition Information (CSI) report, Sounding Reference Signal (SRS) transmission, and pre-configuration Completed components, such as startup / shutdown MAC CE, discontinuous reception (DR) X) Related MAC CE, timing-progressed MAC CE, and random access-related MAC CE C CE is an example. MAC CE is similar to MAC SDU in its form. - May be preceded by the MAC subheader of the mat, and control included in the MAC CE The LCID field, which indicates the type of information, can be identified by a reserved value.

[0089] Before explaining the NR control plane protocol stack, let's first discuss logical channels and transports. We will first explain the channels, physical channels, and the mapping between channel types. Using one or more channels, the NR control plane protocol stack described later... It can perform functions related to the 'k'.

[0090] Figures 5A and 5B show the logical chains for the downlink and uplink, respectively. This shows the mapping between Nell, transport channel, and physical channel. The information is N Transmitted through the channels between the RLC, MAC, and PHY of the R protocol stack. The logic channel can be used between RLC and MAC, within the NR control plane. As a control channel for transmitting control and configuration information, or within the NR user plane Logical channels can be classified as traffic channels that transmit data. It can be used as a dedicated logical channel for a specific UE, or as a common channel that can be used by multiple UEs. It can be classified as a logical channel. A logical channel can also be classified by the type of information it carries. It can be defined as follows: The set of logical channels defined by NR includes, for example, - Used to page UEs whose location is not known to the network at the cell level. The paging control channel (PCCH) used to display the paging message and , - Master Information Block (MIB) and several System Information Blocks (SIB) Broadcast control channel (B) for transmitting system information messages in the form of ) CCH) and system information messages are used by the UE to determine how the cell is It is configured to allow information about how it works within the cell, broadcast Stroke control channel, - Common control channel (C) for sending control messages along with random access. CCH) and, - Dedicated to sending control messages to and from a specific UE in order to configure the UE. Control channel (DCCH) and, - A dedicated traffic channel for sending user data to and from a specific UE ( Includes DTCH.

[0091] The transport channel is used between the MAC layer and the PHY layer, and the information they transmit It can be defined by how the information is transmitted over the air interface. The set of transport channels defined by this includes, for example, - Paging channel for sending paging messages originating from PCCH Lu (PCH) and, - Broadcast Channel (BCH) for carrying MIBs from BCCH, - Downlink data and signaling messages, including SIBs from BCCH Downlink shared channel (DL-SCH) for transmission - Uplink for sending uplink data and signaling messages Shared Channel (UL-SCH) and - Randomly allows UEs to connect to the network without prior scheduling. This includes the 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 channel for carrying information from one or more transport channels. It may have an associated set of wavenumber resources. The PHY generates control information to control the low level of the PHY. It supports operation via physical control channels known as L1 / L2 control channels. , which can provide control information to the low level of the PHY. The physical channel defined by NR and The set of physical control channels is, for example, - A physical broadcast channel (PBCH) for carrying MIBs from the BCH, - Downlink data and signaling messages from DL-SCH, as well as Physical downlink shared channel (PDS) for carrying paging messages from PCH. CH) and, - Downlink scheduling command, uplink scheduling permission, It carries downlink control information (DCI), which may include uplink power control commands. A physical downlink control channel (PDCCH) for this purpose, - UL-SCH and, in some examples, uplink control information as described below. (UCI) A physical uplink to carry uplink data and signaling messages PUSCH Shared Channel (PUSCH) and - HARQ Confirmation Response, Channel Quality Indicator (CQI), Precoding Markup TRIX indicator (PMI), Rank indicator (RI), and schedule A physical uplink control channel for carrying UCI, which may include a Ring Request (SR). PUCCH) and, - Includes a physical random access channel (PRACH) for random access. nothing.

[0093] Similar to the physical control channel, the physical layer supports the low-level operation of the physical layer. A physical layer signal is generated. As shown in Figures 5A and 5B, the physical layer signal is defined by the NR. This includes a primary sync signal (PSS), a secondary sync signal (SSS), and a channel-like signal. State information reference signal (CSI-RS), demodulation reference signal (DMSR), sounding reference signal This includes (SRS) and the phase tracking reference signal (PT-RS). Layer signals are explained in more detail below.

[0094] Figure 2B shows an example of an NR control plane protocol stack. In Figure 2B, NR control The user plane protocol stack is the same as the example of the NR user plane protocol stack. A similar first four protocol layers can be used. These four protocol layers include PH Y211 and 221, MAC212 and 222, RLC213 and 223, and This includes PDCP214 and 224. NR User Plane Protocol Stack For example, instead of having SDAP215 and 225 at the top of the stack, NR control pre The NR control plane protocol stack has Radio Resource Control (RR) on top of it. C)216 and 226, as well as NAS protocols 217 and 237.

[0095] NAS protocols 217 and 237 are used in UE210 and AMF230 (for example, AMF During 158A), or more generally, control plane functions between UE210 and CN. It can be provided. NAS protocols 217 and 237 are signatures called NAS messages. Control plane functionality is provided between the UE210 and AMF230 via narrating messages. A direct path is available between the UE210 and AMF230 that can send NAS messages. There is no such thing. NAS messages are sent using the AS of the Uu and NG interfaces. NAS protocols 217 and 237 are used for authentication, security, and connection setup. It can provide control plane functions such as mobility management and session management.

[0096] RRC216 and 226 are used between UE210 and gNB220, or more generally. It can provide control plane functionality between the UE210 and the RAN. RRC216 and 226 communicates with UE210 via a signaling message called an RRC message. It can provide control plane functionality between the gNB220 and the signaling network. RRC messages are signaling Wireless bearers, and identical / similar PDCP, RLC, MAC, and PHY protocols A layer can be used to transmit between the UE210 and the RAN. The MAC is the control plane and User plane data can be multiplexed within the same transport block (TB). RRC216 and 226 are broadcasters of system information related to AS and NAS. Paging initiated by CN or RAN, R between UE210 and RAN RC connection establishment, maintenance, and release, security functions including key management, Establishment, configuration, maintenance, and release of g-NR radio bearers and data radio bearers, mobility functions, QoS management functions, UE measurement report and report control, detection and recovery of radio link failure (RLF), and / or control plane functions such as NAS message transfer can be provided. As part of the establishment of the RRC connection, RRC 216 and 226 may involve setting parameters for communication between the UE 210 and the RAN and may establish an RRC context. - s, mobility functions, QoS management functions, UE measurement report and report control, radio link failure (RLF) detection and recovery, and / or NAS message transfer. As part of establishing the RRC connection, RRC 216 and 226 may involve setting parameters for communication between the UE 210 and the RAN and may establish an RRC context. between the UE 210 and the RAN and may establish an RRC context. can establish.

[0097] Figure 6 is an exemplary diagram showing the RRC state transition of a UE. The UE can be the same as or similar to the radio device 106 shown in FIG. 1A, the UE 210 shown in FIGS. 2A and 2B, or any other radio device described in the present disclosure. As shown in FIG. 6, the UE can be in at least one of three RRC states. That is, an RRC connection 602 (e.g., RRC_CONNECTED), RRC idle 604 (e.g., RRC_IDLE), and RRC inactive 606 (e.g., RRC_INACTIVE). In the RRC connection 602, the UE has an established RRC context and can have at least one RRC connection with a base station. The base station can be one of the one or more base stations included in the RAN 104 shown in FIG. 1A, one of the gNB 160 or ng-eNB 162 shown in FIG. 1B, the gNB 220 shown in FIGS. 2A and 2B, or any other base station similar to those described in the present disclosure. The base station to which the UE is connected may have the RRC context of the UE. 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 can have at least one RRC connection with a base station. The base station can be one of the one or more base stations included in the RAN 104 shown in FIG. 1A, one of the gNB 160 or ng-eNB 162 shown in FIG. 1B, the gNB 220 shown in FIGS. 2A and 2B, or any other base station similar to those described in the present disclosure. The base station to which the UE is connected may have the RRC context of the UE. and at least one RRC connection with the base station. The base station can be one of the one or more base stations included in the RAN 104 shown in FIG. 1A, one of the gNB 160 or ng-eNB 162 shown in FIG. 1B, the gNB 220 shown in FIGS. 2A and 2B, or any other base station similar to those described in the present disclosure. or one of the gNB 160 or ng-eNB 162 shown in FIG. 1B, the gNB 220 shown in FIGS. 2A and 2B, or any other base station similar to those described in the present disclosure. The RRC context, called the UE context, is for communication between the UE and the base station. The base station to which the UE is connected may have the RRC context of the UE. The RRC context, called the UE context, is for communication between the UE and the base station. These parameters may include, for example, one or more AS context, one or more wireless link configuration parameters, bearer configuration information (example) For example, data wireless bearer, signaling wireless bearer, logical channel, QoS flow, etc. (and / or related to PDU sessions), security information, and / or PHY, MAC, RLC, PDCP, and / or SDAP layer configuration information may be included. RRC connection In the continuation of 602, UE mobility is RAN (e.g., RAN104 or NG-RAN1 54) can be managed by the signal level from the serving cell and adjacent cells. (For example, measure the reference signal level) and provide these measurements to the UE. It can report to nearby base stations. Based on the reported measurements, the UE's serving base station will report to the neighboring base station. A handover to one of the connected base stations may be requested. The RRC status is RRC connection 60 From step 2, the system may transition to RRC idle 604 via connection release procedure 608. Alternatively, the process may transition to RRC inactivity 606 via connection inactivity procedure 610.

[0099] In RRC Idle 604, the RRC context cannot be established for the UE. In C-idle 604, the UE cannot have an RRC connection with the base station. RRC-idle 60 4. During this time, the UE may be in sleep mode for most of the time (e.g., battery power) (To save resources). The UE is activated periodically (for example, once per discontinuous receive cycle) It can monitor paging messages from RAN. UE mobility is... It can be managed by the UE through a procedure known as re-selection. The RRC state is as follows: As will be discussed in more detail, via connection establishment procedure 612 which may involve a random access procedure, The RRC Idle 604 may transition to the RRC Connection 602.

[0100] In RRC inactive 606, the previously established RRC context is used by the UE and It is maintained at the base station. This enables the transition from RRC idle 604 to RRC connected 602. Compared to this, signaling overhead is reduced, and fast transfer to RRC connection 602 is achieved. The line becomes possible. In RRC inactive 606, the UE is in sleep mode, and the UE's mode The ability can be managed by the UE through cell reselection. The RRC state is RRC non-A From Active 606, the connection restart procedure 614 is used to reconnect to RRC connection 602, or to reconnect to RRC idle via a connection release procedure 616 which is identical or similar to lease procedure 608. It may transition to version 604.

[0101] The RRC state may be associated with a mobility management mechanism. RRC Idle 6 In 04 and RRC inactive 606, mobility is provided to the UE through cell reselection. This is how it is managed. Mobility in RRC idle 604 and RRC inactive 606 The purpose of ping management is to ensure that the network is able to perform ping across the entire mobile communications network. Events can be sent via paging messages without broadcasting a message. The goal is to enable notification to E. The mobility management mechanism used in 606 is that paging messages are transmitted via mobile communications. Instead of the entire network, the UE broadcasts on the cells of the cell group where it currently exists. This allows the network to track UEs at the cell group level. is possible. The mobility management mechanisms for RRC idle 604 and RRC inactive 606 track the UE at the cell group level. They can do so using different granularities of grouping. For example, three levels of granularity of cell grouping, namely, individual cells, cells within a RAN area identified by a RAN area identifier (RAI), and cells within a group of RAN areas called a tracking area and identified by a tracking area identifier (TAI), can be possible.

[0102] The tracking area can be used to track the UE at the CN level. The CN (e.g., CN 102 or 5G-CN 152) can provide the UE with a list of TAIs associated with the UE registration area. If the UE moves to a cell associated with a TAI not included in the list of TAIs associated with the UE registration area through cell reselection, the UE performs a registration update at the CN so that the CN can update the UE's location and can provide the UE with a new UE registration area. <00,00978> The RAN area can be used to track the UE at the RAN level. For a UE in the RRC inactive 606 state, a RAN notification area can be assigned to the UE. The RAN notification area can include a list of one or more cell identities, RAI, or TAI. In one embodiment, a base station can belong to one or more RAN notification areas. In one embodiment, a cell can belong to one or more RAN notification areas. If the UE moves to a cell not included in the RAN notification area assigned to the UE through cell reselection, the UE performs an update of the notification area at the You can update your knowledge area.

[0104] A base station that stores the RRC context for the UE, or the last serving base station for the UE. A local station may also be called an anchor base station. An anchor base station is at least one where the UE is anchored - During the time the UE remains in the base station's RAN notification area, and / or if the UE is not RRRC During the time remaining in an active 606 state, maintain the RRC context for the UE. obtain.

[0105] The gNBs in Figure 1B, such as gNB160, consist of two parts, namely the central unit (gNB-C U) and can be divided into one or more distributed units (gNB-DU). gNB-C U can be coupled to one or more gNB-DUs using the F1 interface. gNB-CU may include RRC, PDCP, and SDAP. gNB-DU is It may also include RLC, MAC, and PHY.

[0106] In NR, the physical signal and physical channel (Figures 5A and 5B) are multiplexed using orthogonal frequency division multiplexing. OFDM can be mapped onto symbols. OFDM is an orthogonal subcarrier (and This is a multi-carrier communication scheme that transmits data over a tone. Before transmission, the data These are called source symbols and are divided into a series of complex symbols into F parallel symbol streams. (For example, M-Quaternary Amplitude Modulation (M-QAM) or M-Phase Shift Keying (M-PS)) K) symbols can be mapped. F parallel symbol streams are those that are frequency-dependent. The inverse fast Fourier transform, which treats them as if they were in the main domain and transforms them into the time domain. It can be used as an input to an (IFFT) block. The IFFT block is a parallel symbol. Take one from each source stream at once into the F source symbol, and each source symbol Using Boll, the amplitude and position of one of the F sinusoidal basis functions corresponding to the F orthogonal subcarriers The phase can be modulated. The output of the IFFT block represents the sum of the F orthogonal subcarriers. It can be an F-time domain sample. An F-time domain sample is a single OFDM sample. A bol can be formed. Several processes (e.g., adding a cyclic prefix) and After upconversion, the OFDM symbols provided by the IFFT block are , can be transmitted over the air interface on the carrier frequency. F parallel symbol story The 'm' can be mixed using an FFT block before being processed by an IFFT block. This process involves pre-encoding OF using the Discrete Fourier Transform (DFT). Generates a DM symbol, which is used by the UE in the uplink, and is used for the peak-to-average power ratio (P The APR can be reduced. The inverse process is performed using the FFT block at the receiver. It can be executed on a DM symbol and recover data mapped to the source symbol.

[0107] Figure 7 shows an example of an NR frame structure where OFDM symbols are grouped. A frame can be identified by its System Frame Number (SFN). SFN is a 1024 frame. This can be repeated over the duration of the frame. As shown in the diagram, one NR frame has a duration of 10 It may be in milliseconds (ms), and includes 10 subframes with a duration of 1 millisecond. But that's fine. A subframe, for example, contains 14 OFDM symbols per slot. It can be divided into lots.

[0108] The duration of the slot depends on the numerology used for the OFDM symbols in the slot. In NR, different cell deployments (for example, cells with carrier frequencies in the range of up to mm waves) are obtained. Flexible numerology is supported to accommodate cells with carrier frequencies below 1 GHz. Numerology is used for subcarrier intervals and cyclic prefix duration. It can be defined in relation to the interval. For numerology in NR, the subcarrier interval is 1 Even when scaled up by a power of 2 from a 5kHz baseline subcarrier interval Often, the duration of the cyclic prefix is ​​4.7ums, compared to a baseline cyclic... The cuprefix duration can be scaled down by a power of 2. For example, NR The following combinations of subcarrier interval / cyclic prefix duration are used. Define the numerology as follows: 15kHz / 4.7ums, 30kHz / 2.3ums, 6 0kHz / 1.2ums, 120kHz / 0.59ums, and 240kHz / 0.2 9ums.

[0109] The slot has a fixed number of OFDM symbols (for example, 14 OFDM symbols) Obtain. Numerology with a higher subcarrier interval has a shorter slot duration, Accordingly, the number of slots per subframe is large. Figure 7 shows this numerology-dependent slot The slot duration and the slot transmission structure per subframe are shown (to facilitate illustration). Therefore, numerology with a subcarrier spacing of 240 kHz is not shown in Figure 7. Subframes within NR can be used as numerology-independent time references, but slots It is used as a unit on which uplink and downlink transmissions are scheduled. To support low latency, scheduling in NR is based on slot duration or They are separated, starting with any OFDM symbol and ending with as many symbols as needed for transmission. These partial slot transmissions are also called mini-slot transmissions or sub-slot transmissions. You can call me.

[0110] Figure 8 shows an example of slot configuration in the time and frequency domains of the NR carrier. A slot contains resource elements (REs) and resource blocks (RBs). REs are, It is the smallest physical resource within NR. RE is in the frequency domain, as shown in Figure 8. One subcarrier carries across one OFDM symbol in the time domain. RB As shown in Figure 8, this spans 12 consecutive REs in the frequency domain. The rear may be limited to a subcarrier width of 275RB or 275 x 12 = 3300. These restrictions apply when used, with NR carriers having subcarrier intervals of 15, 30, or 60. And for each of 120kHz, to 50, 100, 200, and 400MHz It may be limited, and the 400MHz bandwidth is based on 400MHz per carrier bandwidth limit. It can be set accordingly.

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

[0112] NR uses a wide carrier bandwidth (for example, for a subcarrier spacing of 120 kHz). It can support up to 400MHz. All UEs can receive the full bandwidth of the carrier. This is not always the case (for example, due to hardware limitations). Also, receiving the entire carrier bandwidth is not possible. This may be prohibited from the perspective of the UE's power consumption. In one example, reducing power consumption For this purpose, and / or for other purposes, the UE will not receive traffic that the UE is expecting to receive. Based on the amount of data, the size of the UE's receiving bandwidth can be adapted. This is called bandwidth adaptation. It can be done.

[0113] NR supports UEs that cannot receive the full carrier bandwidth and supports bandwidth adaptation. A bandwidth portion (BWP) is defined. In one embodiment, the BWP is the continuous RB on the carrier. It can be defined by a subset. UE is one or more Dow per serving cell. Uplink BWP and one or more uplink BWPs (for example, serving cell (or up to four downlink BWPs and up to four uplink BWPs) (for example, It can be composed (via the RRC layer). Given time, it can be composed for a serving cell. One or more of these BWPs may be active. P can also be called the active BWP of the serving cell. - When composed of uplink carriers, the serving cell is connected to the uplink carrier. One or more primary active BWPs and secondary uplink carriers It may have one or more second active BWPs.

[0114] For non-paired spectra, the downlink BWP index of the downlink BWP... If the Uplink BWP index for the Dow Jones and Uplink BWP is the same, the configured Dow Jones Downlink BWP from a set of uplink BWPs to a set of configured uplink BWPs It can link with the uplink BWP from the net. For unpaired spectra, UE This means that the center frequency of the downlink BWP is the same as the center frequency of the uplink BWP. It is predictable.

[0115] Downlink BWP in the set of configured downlinks on the primary cell (PCell) Regarding Link BWP, the base station provides a UE to at least one search space, and one or It can consist of multiple control resource sets (CORESET). The search space is controlled by the UE. A set of locations within the time and frequency domains where information can be found. Search The space can be a UE-specific search space or a common search space (potentially usable by multiple UEs). ) This could be the case. For example, in an active downlink BWP, the base station may use PCell On the top or on the primary / secondary cell (PSCell), configure the UE in the common search space. It is possible.

[0116] For uplink BWPs within a configured set of uplink BWPs, BS is one Alternatively, configure the UE with one or more resource sets for sending multiple PUCCHs. This is possible. UE provides the configured numeric logic (for example, S) to the downlink BWP. According to the carrier interval and cyclic prefix duration, downlink B It may receive downlinks within the WP (e.g., PDCCH or PDSCH). UE This is the numerology that is composed (for example, the subcarrier spacing and symmetrical According to the click prefix length, uplink transmission within the uplink BWP (for example) If so, you can send a PUCCH or PUSCH.

[0117] One or more BWP indicator fields indicate downlink control information (DCI ) may be provided. The value of the BWP indicator field is the set of BWPs that make up. The BWP in the throat is an active downlink B for one or more downlink receptions. It may indicate whether it is WP. The value of one or more BWP indicator fields is This may indicate an active uplink BWP for one or more uplink transmissions.

[0118] The base station is a differential in the set of configured downlink BWPs associated with the PCell. The UE can be configured semi-statically with a zero-downlink BWP. The base station can then defraction the UE. If you do not provide a default downlink BWP, the default downlink BWP will be the first It can be set to active downlink BWP. UE is acquired using PBCH. Based on the configured CORESET configuration, which BWP is the initial active downlink BWP? It is possible to determine whether or not this is the case.

[0119] The base station can configure the UE with the PCell's BWP inactive timer value. The UE is, The BWP inactive timer can be started or restarted at any appropriate time. For example, (a) UE is other than the default downlink BWP for paired spectral operation When a DCI indicating an active downlink BWP is detected, or (b) the UE is Default downlink BWP or uplink BWP for unpaired spectral operation D indicates an active downlink BWP or active uplink BWP other than WP. When detecting a CI (Continuous Inactivity), the UE (User Environment) may start or restart the BWP (Block Point Programming) inactivity timer. If UE does not detect DCI for a certain period of time (e.g., 1 millisecond or 0.5 milliseconds), This can cause the BWP inactive timer to run towards its expiration (for example, from zero to BWP Increase it to the inactive timer value, or reduce it from the BWP inactive timer value to zero. (Reduces to .) When the BWP inactive timer expires, the UE becomes active. It may be possible to switch from inlink BWP to default downlink BWP.

[0120] In one embodiment, the base station semi-statically configures an UE having one or more BWPs. This is possible. The UE receives a DCI indicating the second BWP as the active BWP. In response to and / or in response to the expiration of the BWP inactive timer (for example, the If the second BWP is the default BWP, change the active BWP from the first BWP to the second. You can switch to BWP.

[0121] Downlink and uplink BWP switching (BWP switching is currently Switching from an active BWP to one that is not currently an active BWP is a pair This may be done independently in the spectrum. In non-paired spectra, downlink and Uplink BWP switching can be performed simultaneously. Switching between configured BWPs is , RRC signaling, DCI, BWP inactive timer expiration, and / or This can occur based on the initiation of domain access.

[0122] Figure 9 shows an example of bandwidth adaptation using three configured BWPs for an NR carrier. This shows that the UE, which consists of three BWPs, switches from one BWP to another at the switching point. It may be replaced. In the example shown in Figure 9, the BWP has a bandwidth of 40 MHz and subcarriers. BWP902 with a 15kHz interval, a bandwidth of 10MHz, and a 15kHz subcarrier interval. The BWP904, and the BWP9 with a bandwidth of 20MHz and a subcarrier spacing of 60kHz. 06 is included. BWP902 may be the initial active BWP, and BWP904 This can be the default BWP. The UE can switch between BWPs at the switching point. Yes, it is possible. In the example in Figure 9, the UE switches from BWP902 to BWP904 at the switching point 908. It is also acceptable. The switching at switching point 908 is, for example, a BWP inactive timer (differential In response to the expiration of (indicating switching to a fort BWP), and / or active B In response to receiving a DCI indicating BWP904 as WP, for any appropriate reason This can occur. The UE receives a DCI indicating BWP906 as the active BWP. In response, the system may switch from active BWP904 to BWP906 at switching point 910. The UE responds to the expiration of the BWP inactive timer and / or BWP904 In response to receiving a DCI indicating that it is an active BWP, the switchover point 912 activates You can also switch from BWP906 to BWP904. UE will activate BWP902. In the response to receiving DCI, which is indicated as BWP, the active BWP 904 is at the switching point 914. You can switch to the BWP902.

[0123] UE defaults downlink BWP set in timer value for configured downlink BWP When configured for a secondary cell with a linked BWP, the BWP on the secondary cell The UE procedure for switching may be the same as or similar to that on the primary cell. Example For example, UE uses the same / similar values ​​as UE uses for the primary cell. In this format, the timer value and default downlink BWP are used for the secondary cell. It can be used.

[0124] To provide higher data speeds, use carrier aggregation (CA) with two or more Carriers can be aggregated and transmitted simultaneously between the same UE. The aggregation carrier can also be called a component carrier (CC). When using this method, there are many serving cells for UE and only one cell for CC. It may have three configurations within the frequency domain.

[0125] Figure 10A shows three CA configurations with two CCs. In-band, continuous configuration 100 In step 2, the two CCs are aggregated into the same frequency band (frequency band A), and the frequency They are arranged directly adjacent to each other within the same bandwidth. In configuration 1004 where the elements are not continuous within the bandwidth, two CC is aggregated into the same frequency band (frequency band A), and the gap determines the frequency It is separated into bands. In the in-band configuration 1006, the two CCs are in frequency bands (frequency band A and It is located in frequency band B).

[0126] In one embodiment, up to 32 CCs can be aggregated. Aggregated CCs This involves the same or different bandwidths, subcarrier spacing, and / or duplication schemes (TD It may have D or FDD. The serving cell of the UE using CA has downlink C It may have C. For FDD, one or more uplink CCs may be optionally selected. It can be configured for moving cells. More downlink carriers than uplink carriers The ability to aggregate means, for example, that UE is more downlink than uplink. This may be useful when there is a large amount of data traffic on the link.

[0127] When using CA, one of the aggregation cells of UE is designated as the primary cell (PC). It can also be called PCell). PCell is used when the UE first establishes, re-establishes, and / or it could be a serving cell connected via handover. PCell is N to UE It can provide AS mobility information and security input. The UE may have different PCells. In the downlink, the carrier compatible with PCell is the downlink primary C It can also be called C (DL PCC). Uplink is a carrier that supports PCell. This may also be called an Uplink Primary CC (UL PCC). Other UE The aggregation cell may also be called a secondary cell (SCell). In one embodiment, SCell can be configured after PCell is configured for UE. For example, SC The ell can be configured via the RRC connection reconfiguration procedure. On the downlink, SCell The carriers that support this can also be called Downlink Secondary CCs (DL SCCs). At Uplink, the carrier compatible with SCell is Uplink Secondary CC. It can also be called (UL SCC).

[0128] SCells configured for a UE are based, for example, on traffic and channel conditions. It can be started and stopped accordingly. Stopping SCell is done by the PDCCH and on SCell. PDSCH reception is stopped, and PUSCH, SRS, and CQI transmissions on SCell are stopped. This could mean that it will be stopped. The configured SCell, with respect to Figure 4B, MAC CE It can be started and stopped using [a specific method]. For example, MAC CE can use a bitmap (e.g., S Using 1 bit per cell, which SCell (e.g., configured) is used for the UE. This may indicate whether a subset of SCells is started or stopped. ell is the SCell stop timer (for example, one SCell stop timer per SCell). It may be stopped in response to the expiration of the Immer.

[0129] Downlink control such as cell scheduling assignment and scheduling permission. The information is on the cells corresponding to assignment and permission, known as self-scheduling. It can be transmitted. DCI for a cell is known as cross-carrier scheduling. It may be transmitted on another cell. Uplink control information for aggregation cells (for example) If so, HARQ confirmation responses and channel state signals such as CQI, PMI, and / or RI. Feedback can be sent on the PCell's PUCCH. Aggregated If there are too many downlink CCs, the PUCCH on the PCell might become overloaded. The cell may be divided into multiple PUCCH groups.

[0130] Figure 10B shows how aggregation cells are composed of one or more PUCCH groups. Examples of possible implementations are shown. PUCCH group 1010 and PUCCH group 10 Each of the 50 may include one or more downlink CCs. In the embodiment shown in Figure 10B... And UCCH group 1010 is PCell1011, SCell1012, and SCell1013 includes three downlink CCs. PUCCH group 1050 is In this embodiment, PCell1051, SCell1052, and SCell105 Includes three downlink CCs. One or more uplink CCs are PCell It can be configured as 1021, SCell1022, and SCell1023. Alternatively, multiple other uplink CCs are primary SCell (PSCell) 1061 It can be configured as SCell1062 and SCell1063. UCI1031 PUCCH Group 1010, which is shown as UCI 1032 and UCI 1033. Uplink control information (UCI) related to downlink CC is from PCell1021. It can be transmitted via uplink. UCI1071, UCI1072, and UCI1073 Uplink related to downlink CC of PUCCH group 1050, as shown. Control information (UCI) can be transmitted via the uplink of the PSCell1061. One example Then, the aggregation cell depicted in Figure 10B is PUCCH group 1010 and If not divided into PUCCH group 1050, UC related to downlink CC A single uplink PCell and PCell for transmitting I are in an overloaded state. It is possible to split the UCI transmission between PCell1021 and PSCell1061. This can prevent overload.

[0131] Cells that include downlink carriers and optional uplink carriers are physical cells An ID and cell index can be assigned. (Physical cell ID or cell index) For example, the cell's downlink is used depending on the context, where the physical cell ID is used. The carrier and / or uplink carrier can be identified. The physical cell ID is the downlink This can be determined using the synchronization signal transmitted on the link component carrier. The cell index can be determined using RRC messages. The physical cell ID is sometimes called the carrier ID. The cell index is the carrier It is sometimes called an index. For example, this disclosure relates to the first downlink carrier. When referring to the first physical cell ID, this disclosure means that the first physical cell ID is the first da This can mean that it is for cells containing unlink carriers. This concept can be applied, for example, to the activation of a carrier. This disclosure is applicable to the activation of a first carrier. When this is indicated, it may mean that a cell containing the first carrier is activated.

[0132] In CA, the multi-carrier nature of the PHY can be exposed to MAC. In one embodiment, H ARQ entities can operate on serving cells. Transport blocks are... A transport block can be generated per allocation / per permission per moving cell. Potential HARQ retransmissions of transport blocks are mapped to serving cells. It is possible.

[0133] In the downlink, the base station sends one or more reference signals (RS) to the UE (e.g., As shown in Figure 5A, PSS, SSS, CSI-RS, DMRS, and / or P Sending T-RS (e.g., unicast, multicast, and / or broadcast) (cast) is possible. In uplink, the UE connects one or more RSs to the base station (e.g., As shown in Figure 5B, it transmits to DMRS, PT-RS, and / or SRS. This is possible. PSS and SSS are transmitted by the base station and used by the UE. The UE can be synchronized with the base station. PSS and SSS are PSS, SSS, and Synchronization signal (SS) / Physical Broadcast Channel (PBCH) block including PBCH It may be provided within the base station. The base station may periodically transmit bursts of SS / PBCH blocks. ru.

[0134] Figure 11A shows an example of the structure and location of the SS / PBCH block. SS / PBC A burst in an H block occurs in one or more SS / PBCH blocks (for example, Figure 11A) As shown, it may include four SS / PBCH blocks. Bursts occur periodically. It can be transmitted (e.g., every 2 frames or every 20 milliseconds). A burst is half a frame. It may be limited to a first half-frame (for example, a first half-frame with a duration of 5 milliseconds). Figure 11 A is just one example, and these parameters (number of SS / PBCH blocks per burst) (The periodicity of bursts, the position of bursts within a frame) are, for example, SS / PBCH blocks. The carrier frequency of the cell from which the signal is transmitted, the cell's numeric or subcarrier interval, and the network Configuration by twerking (e.g., using RRC signaling), or any other appropriate It will be understood that it can be constructed based on various factors. In one embodiment, the UE is monitored Based on the carrier frequency, the subcarrier spacing for SS / PBCH blocks can be assumed. However, the wireless network must configure the UE to assume different subcarrier intervals. This does not apply if...

[0135] An SS / PBCH block is one or more OFDM symbols in the time domain (e.g.) For example, it may span across four OFDM symbols as shown in the example in Figure 11A, and the frequency One or more subcarriers of several domains (for example, 240 consecutive subcarriers) ) may extend over the same period. PSS, SSS, and PBCH may have a common center frequency. PSS may be sent first, for example, one OFDM symbol and 127 It may be transmitted over subcarriers. SSS may be transmitted after PSS (for example, after (These two symbols), may span 1 OFDM symbol and 127 subcarriers. PBCH may be sent after PSS (for example, in the following three OFDM symbols) It may span 240 subcarriers.

[0136] The location of the SS / PBCH block in the time and frequency domains may be known to the UE. No (for example, if the UE is searching for a cell). To find and select a cell, the UE The PSS can monitor the carrier. For example, the UE can monitor the frequency position within the carrier. If the PSS is not found after a certain period of time (e.g., 20 milliseconds), the UE will... As shown by the period raster, PSS can be searched at different frequency positions within the carrier. If PSS is observed in the time and frequency domains, the UE is SS / PBCH Based on the known structure of the block, the locations of the SSS and PBCH can be determined, respectively. An SS / PBCH block may be a cell-defined SS block (CD-SSB). In the example, the primary cell may be associated with the CD-SSB. The CD-SSB is, It can be placed on a synchronized raster. In one embodiment, cell selection / search and / or reselection are performed. It may also be based on CD-SSB.

[0137] The SS / PBCH block determines one or more parameters of the cell by the UE. It can be used to do this. For example, UE is based on the PSS and SSS arrays respectively. The physical cell identifier (PCI) of the cell can be determined. The UE is located in the SS / PBCH block. Based on the position, the position of the cell's frame boundary can be determined. For example, SS / PBCH blocks The 'k' may indicate that it was transmitted according to the transmission pattern, and the SS / P in the transmission pattern The BCH block is at a known distance from the frame boundary.

[0138] PBCH may use QPSK modulation and may use forward error correction (FEC). FEC can use polarity coding. One spanned by PBCH Multiple symbols may carry one or more DMRS for PBCH demodulation. PBCH is the cell's current system frame number (SFN) and / or SS / PB This may include displaying the CH block timing index. These parameters are UE This can facilitate time synchronization to the base station. The PBCH can send one or more parameters to the UE. - May include a Master Information Block (MIB) used to provide. This is the remaining minimum system information (RSSI) used by the UE and associated with the cell. It can be found. RMSI includes System Information Block Type 1 (SIB1). That's fine. SIB1 may contain the information necessary for the UE to access the cell. M can be used to monitor PDCCH, which can be used to schedule PDSCH. One or more parameters of IB may be used. PDSCH may include SIB1. SIB1 can be decoded using the parameters provided to the MIB. PBCH is This may indicate the absence of SIB1. Based on PBCH, which indicates the absence of SIB1, U E can indicate a frequency. UE is the frequency to which UE points to the SS / PBCH block. It can be searched.

[0139] UE is one or more SS sent with the same SS / PBCH block index / PBCH blocks are placed in quasi-identical positions (QCL) (e.g., same / similar) Doppler diffusion, Doppler shift, average gain, average delay, and / or spatial Rx It can be assumed that it has parameters. The UE transmits SS / PBCH blocks. In contrast, it is not conceivable that QCL has different SS / PBCH block indexes. .

[0140] SS / PBCH blocks (for example, blocks within a half-frame) are in the spatial direction (for example) It can be transmitted using different beams across the cell's coverage area. In the example, the first SS / PBCH block sends in the first spatial direction using the first beam. It may be believed that the second SS / PBCH block uses the second beam to form the second space It can be transmitted in that direction.

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

[0142] CSI-RS is transmitted by the base station and channel status information (CSI) by the UE. It can be used to obtain channel estimation or any other appropriate method. For the purpose, one or more CSI-RSs may constitute the UE. The base stations are identical / similar. A UE can consist of one or more of the CSI-RSs. A UE can consist of one or more CSI-RS can be measured. The UE can measure one or more downlink CSI- Based on RS measurements, estimate the downlink channel status and / or CSI report A report can be generated. The UE can provide the base station with a CSI report. The base station , feedback provided by the UE (e.g., estimated downlink channel shape) Link matching can be performed using (state).

[0143] The base station can semi-statically configure the UE with one or more CSI-RS resource sets. CSI-RS resources are associated with location and periodicity within the time and frequency domains. The base station may selectively start and / or stop CSI-RS resources. The base station starts and / or the CSI-RS resources in the CSI-RS resource set. This may indicate to the UE that the process will be stopped.

[0144] The base station can be configured to report CSI measurements. The base station periodically... The UE can be configured to provide CSI reports periodically or semi-permanently. For CSI reporting, the UE manages the timing and / or frequency of multiple CSI reports. It can be structured on a periodic basis. For irregular CSI reports, the base station needs the CSI report. It can be determined. For example, the base station measures the configured CSI-RS resources to the UE and measures You may be asked to provide a CSI report regarding the values. Therefore, the base station periodically sends periodic reports and the UE selectively starts or stops. This can be configured. The base station uses RRC signaling to configure CSI-RS lithography. UE can be configured with sets and CSI reports.

[0145] A CSI-RS configuration, for example, can have one or more antenna ports, up to 32 in number. May include a meter. UE is a downlink CSI-RS and CORESET in space. Resource elements associated with downlink CSI-RS are QCLed and CORES If it is outside the physical resource block (PRB) configured for ET, downlink C Use the same OFDM symbols for SI-RS and the Control Resource Set (CORESET). It can be configured as follows: The UE has downlink CSI-RS and SS / PBCH blocks. The resource elements that are spatially QCL'd and associated with the downlink CSI-RS are SS / If it is outside the PRB configured for the PBCH block, downlink CSI-RS It can be configured to use the same OFDM symbols for both the SS / PBCH block and the SS / PBCH block.

[0146] Downlink DMRS may be transmitted by the base station and channel pushed by the UE. It can be used for setting. For example, a downlink DMRS can be one or more downlink It can be used for coherent demodulation of a physical channel (e.g., PDSCH). The network uses one or more variable and / or configurable DMRs for data demodulation. It can support an S pattern. At least one downlink DMRS configuration is front It can support loaded DMRS patterns. Front-loaded DM RS is one or more OFDM symbols (for example, one or two adjacent OFDM symbols). It can be mapped to the M symbol. The base station is a front-loaded DMR of the PDSCH. The UE can be semi-statically configured using the number of S symbols (e.g., maximum number). DMRS configuration It may support one or more DMRS ports. For example, single-user MI In the case of MO, the DMRS configuration allows for up to eight orthogonal downlink DMRS ports per UE. It can be supported. For multi-user MIMO, the DMRS configuration can support up to four per UE. It can support orthogonal downlink DMRS ports. Wireless networks are downlink A typical DMRS structure for the hub and uplink (for example, at least for CP-OFDM) ) Supports: DMRS location, DMRS pattern, and / or scrambling The sequences may be the same or different. The base stations use the same precoding machine. Tricks can be used to transmit downlink DMS and corresponding PDSCH. E is one or more downlinks for coherent demodulation / channel estimation of PDSCH. You can use a DMR.

[0147] In one embodiment, the transmitter (e.g., base station) uses a precoder for a portion of the transmission bandwidth. Tricks can be used. For example, the transmitter can use a first precoder matrix in the first bandwidth. The second precoder matrix can be used for the second bandwidth. The matrix and the second precoder matrix are such that the first bandwidth is equal to the second bandwidth. They may differ based on different factors. UE has the same precoding matrix, It can be assumed that it is used across a set of PRBs. The set of PRBs is precoded It may be shown as a GRI Resource Block Group (PRG).

[0148] PDSCH may include one or more layers. UE has at least DMS. We can assume that another symbol exists on one or more layers of the PDSCH. The upper layers can consist of up to three DMRSs relative to the PDSCH.

[0149] Downlink PT-RS may be transmitted by the base station for phase noise compensation. It can be used by UE. Whether a downlink PT-RS is present depends on the RRC configuration. It varies depending on the type. The presence and / or pattern of the downlink PT-RS is RRC signature. Combinations of naring, and / or other purposes that may be indicated by DCI (e.g., With one or more parameters used in the Modulation and Encoding Scheme (MCS) Associations can be used to configure on a UE-specific basis. When configured, downlink PT -The dynamic presence of RS is associated with one or more DCI parameters, including at least MCS. It can be associated. NR networks are fixed in the time and / or frequency domains. It can support multiple defined PT-RS densities. The frequency domain density is If present, it is associated with at least one configuration of the scheduled bandwidth. It is possible. The UE uses the same precode for DMRS ports and PT-RS ports. A possible scenario is that the number of PT-RS ports will be within the scheduled resources for DM-RS. The number of S ports may be less. Downlink PT-RS is scheduled by the UE. It may be limited to the specified time / frequency period. Downlink PT-RS enables phase tracking at the receiver. To facilitate transmission, it can be sent via a symbol.

[0150] The UE can transmit uplink DMRS to the base station to perform channel estimation. For example, a base station performs coherent demodulation of one or more uplink physical channels. Uplink DMRS can be used for this purpose. For example, UE can use PUSCH and / or P Uplink DMR can be transmitted via UCCH. Uplink DM-RS is transmitted via the corresponding physical The frequency range may also be similar to the frequency range associated with the channel. A station can configure a UE with one or more uplink DMRS configurations. At least one DMRS configuration can support a front-loaded DMRS pattern. A front-loaded DMRS has one or more OFDM symbols (for example, one It can be mapped to one or more adjacent OFDM symbols. Link DMRS is one or more symbols of PUSCH and / or PUCCH It may be configured to transmit. The base station can receive single symbols DMRS and / or PUSCH and / or can be used to schedule dual-symbol DMRS. Using the number of front-loaded DMRS symbols for PUCCH (e.g., maximum number), UE This can be configured semi-statically. The NR network has common downlink and uplink. DMRS structure (e.g., cyclic prefix orthogonal frequency division multiplexing (CP-OF)) DM) may support) here, DMRS location, DMRS pattern, The scramble sequences of the DMRS may be the same or different.

[0151] PUSCH may include one or more layers, and UE is one or It is possible to transmit at least one symbol having a DMS that exists on multiple layers. In this example, the upper layer can comprise up to three DMRSs relative to PUSCH.

[0152] Uplink PT-RS (base for phase tracking and / or phase noise compensation) (May be used by stations) may or may not exist depending on the UE's RRC configuration. It is not necessary. The presence and / or pattern of the uplink PT-RS is RRC signaling. Other purposes (e.g., Modulatio) may be indicated by the ng and / or DCI. One or more pairs used in n and Coding Scheme (MCS) It can be configured on a UE-specific basis by combining parameters. When configured, up The dynamic presence of Link PT-RS is one or more DCI parametrics including at least MCS. It can be associated with a meter. Wireless networks are defined in the time / frequency domain. It can support multiple uplink PT-RS densities. Frequency domain Density, if present, is related to at least one configuration of the scheduled bandwidth. It can be attached. The UE is the same for DMRS ports and PT-RS ports. Precoding is possible. The number of PT-RS ports is within the scheduled resources. The number of DM-RS ports may be less than the number of DM-RS ports. For example, the uplink PT-RS is U It may be limited to the scheduled time / frequency period of E.

[0153] SRS provides uplink channel-dependent scheduling and / or link compatibility. To port, the channel state may be transmitted by the UE to the base station for channel state estimation. SRS transmitted by the base station is an uplink channel on one or more frequencies. This can make it possible to estimate the state. The base station scheduler estimates the uplink Use the channel state to send one or more uplink pushes from the UE. A number of resource blocks can be allocated. A base station can use one or more SRS resources. The UE can be configured semi-statically using a source set. In total, a base station can configure a UE using one or more SRS resources. The applicability of an SRS resource set depends on the parameters of the higher layer (e.g., RRC). It can be configured as follows. For example, if the upper layer parameters indicate beam control, one or multiple SRS resource sets (e.g., identical / similar time-domain behavior, periodicity, SRS resources within an SRS resource set (having nonperiodicity and / or homogeneity) The message can be sent instantaneously (for example, simultaneously). The UE is one of the SRS resource sets. It can transmit one or more SRS resources. The NR network is aperiodic. It may support periodic and / or semi-persistent SRS transmissions. The UE can support one or multiple SRS resources may be sent based on the number of trigger types, one or more triggers Gar types include upper-level signaling (e.g., RRC) and / or one or more. It may include the DCI format. In one embodiment, at least one DCI format The UE is used to access one or more configured SRS resource sets. At least one of these can be selected. SRS trigger type 0 is used for upper-level signaling. This can refer to an SRS triggered based on the following. SRS trigger type 1 can be one or more. It can refer to an SRS triggered based on the DCI format. In one example, If PUSCH and SRS are transmitted in the same slot, the UE will send PUSCH and SRS. It may be configured to transmit SRS after the corresponding uplink DMRS transmission.

[0154] The base station includes the SRS resource configuration identifier, the number of SRS ports, and the SRS resource configuration time. Domain behavior (e.g., periodic, semi-persistent, or aperiodic SRS display), slots, Mini slots, and / or subframe level periodic, periodic and / or aperiodic. Offset for the target SRS resource, number of OFDM symbols in the SRS resource, SR S resource start OFDM symbol, SRS bandwidth, frequency hopping bandwidth, cycle One or more indicating at least one of the backshift and / or SRS sequence IDs The UE can be constructed quasi-statistically using a number of SRS configuration parameters.

[0155] The antenna port is the channel on which the symbol on the antenna port is carried. Another symbol on the Naport is defined so that it can be inferred from the channel being carried. If the first and second symbols are transmitted on the same antenna port, the receiver , from the channel for carrying the first symbol on the antenna port, on the antenna port A channel for carrying the second symbol (e.g., fade gain, multipath delay) It can be inferred that the first antenna port and the second antenna port The Naport is one of the channels on which the first symbol on the first antenna port is transmitted. This involves multiple large-scale characteristics, where the second symbol of the second antenna port is transmitted, channel If it can be inferred from the context, it may be called being placed in a quasi-same position (QCL). One or more large properties include delayed diffusion, Doppler diffusion, Doppler shift, Average gain, average delay, and / or at least one of the spatial receive (Rx) parameters It may include.

[0156] Channels using beamforming require beam management. Beam management is This may include beam measurement, beam selection, and beam display. The beam may be one or more It may be associated with a reference signal. For example, the beam may be associated with one or more beamforming references. It can be identified by the signal. The UE is a downlink reference signal (e.g., channel status information). Downlink beam measurements are performed based on the reference signal (CSI-RS), and beam measurement results are... A port can be generated. The UE can then access the downlink after the RRC connection is set up at the base station. The quad beam measurement procedure can be performed.

[0157] Figure 11B shows the channel state information reference signal mapped to the time and frequency domains. An example of (CSI-RS) is shown. The square shown in Figure 11B represents the lithography within the cell bandwidth. It may span a RB (Range Block). The base station displays one or more CSI-RSs. Send one or more RRC messages containing CSI-RS resource configuration parameters. It is trustworthy. One or more of the following parameters apply to the CSI-RS resource configuration. The signaling at the upper layer (e.g., RRC and / or MAC signaling) It can be determined. CSI-RS resource configuration identity, number of CSI-RS ports, CS I-RS configuration (e.g., location of symbols and resource elements (REs) within a subframe) , CSI-RS subframe configuration (e.g., subframe position, offset, and wireless) Frame periodicity, CSI-RS power parameters, CSI-RS sequence parameters Term, code division multiplexing (CDM) type parameters, frequency density, transmit comb, quasi-identical QCL parameters (e.g., QCL-scramblingidentity, crs-portscount, mbsfn-subframeconfiglist, csi-rs-configZPid, qcl-csi-rs-configNZPid ), and / or other wireless resource parameters.

[0158] The three beams shown in Figure 11B can be configured for a UE with a UE-specific configuration. The beams are shown in Figure 11B (beam #1, beam #2, and beam #3), and more It may constitute a beam of , or fewer. Beam #1 is within the RB of the first symbol. Can be assigned via CSI-RS1101, which can be transmitted on one or more subcarriers. Beam #2 may be transmitted on one or more subcarriers within the RB of the second symbol. It can be assigned in CSI-RS1102. Beam #3 is in the RB of the third symbol. Can be assigned in CSI-RS1103, which can be transmitted on one or more subcarriers. By using frequency division multiplexing (FDM), a base station can connect to other substations within the same RB. Using a carrier (for example, one not used to transmit CSI-RS1101) Then, another CSI-RS associated with the beam of another UE may be transmitted. Time domain multi By using Total Damping (TDM), the beam used for the UE is the same as the beam used for other UEs. It can be configured to use symbols from the beam.

[0159] Figure 11B shows CSI-RS (e.g., CSI-RS1101, 1102, 1103) ) may be transmitted by a base station and used by a UE for one or more measurements For example, the UE uses the Reference Signal Received Power (RSRP) of the configured CSI-RS resources. It is possible to measure this. The base station may configure the UE using a report configuration, Based on the report configuration, RSRP measurements are sent to the network (e.g., one or multiple). (Through a number of base stations) it can be reported. In one embodiment, the base station based on the reported measurement results Then, one or more Transmit Configuration Indicators (TCI) states, including several reference signals, are determined. In one embodiment, the base station may indicate one or more TCI states to the UE (e.g., (via RRC signaling, MAC CE, and / or DCI). UE is one Or a downlink with a receive (Rx) beam determined based on multiple TCI states. Transmission can be received. In one embodiment, the UE may have beam-responsive capabilities. It is not necessary. If the UE has beam-compatible capabilities, the UE will correspond to Rx Based on the spatial domain filtering of the beam, the spatial domain filtering of the transmit (Tx) beam The UE may determine the uplink beam. If the UE does not have beam-compatible capabilities, the UE will determine the uplink beam. The spatial domain filter of the Tx beam can be determined by performing a domain selection procedure. The UE is One or more sounding reference signals (SRS) configured by the base station to the UE Based on the source, the uplink beam selection procedure can be performed by the base station. Based on measurements of one or more SRS resources being transmitted, uplink for UE You can select and display beams.

[0160] In beam management procedures, the UE controls one or more beampair links, and the base station... Beam pairing includes the transmit beam that is sent and the receive beam that is received by the UE. The channel quality of the signal can be evaluated (e.g., measured). Based on the evaluation, the UE can, for example, One or more beam identifiers (e.g., beam index, reference signal index, etc.) (or similar things), RSRP, Precoding Matrix Indicator (PMI) , Channel Quality Indicator (CQI), and / or Rank Indicator (RI) Send a beam measurement report showing one or more beam pair quality parameters, including ). It is believable.

[0161] Figure 12A shows examples of three downlink beam management procedures, P1, P2, and P3. Step P1 involves, for example, one or more base stations Tx beam and / or UE Rx beam Supports the selection of the frame (displayed as ovals in the top and bottom rows of P1). To achieve this, the transmit (Tx) beam of the transmit-receive point (TRP) (or multiple TRPs) This can enable UE measurements. Beamforming in TRP allows for the Tx beam of the beam set. It may include a sweep (as indicated by the dashed arrow in the top row of P1 and P2, an ellipse). (It is shown as rotating counterclockwise). Beamforming in UE is done by beam This may include Rx beam sweeps for a set of (as shown in the lower lines of P1 and P3) (The ellipse is rotating in the direction of the circle when indicated by the dashed arrow.) Using procedure P2 UE measurement can be enabled with the TRP's Tx beam. (Top row of P2, break (As indicated by the arrows, the ellipse appears to be rotating counterclockwise.) The base station uses a smaller set of beams than the one used in procedure P1. Alternatively, perform step P2 using a beam narrower than the beam used in step P1. This can be done. This can also be called beam refinement. The UE is the same T at the base station. By using the x-beam and sweeping the Rx-beam with the UE, the Rx-beam determination is performed. You can then perform step P3.

[0162] Figure 12B shows examples of three uplink beam management procedures, U1, U2, and U3. Using procedure U1, for example, one or more UE Tx beams and / or bases Supports the selection of the local Rx beam (shown as ellipses in the top and bottom rows of U1, respectively). To achieve this, the base station may be able to perform measurements on the UE's Tx beam. Beamforming at E includes, for example, a Tx beam sweep from a set of beams. Obtained. (As an ellipse rotated around the sum, indicated by dashed arrows in the lines below U1 and U3.) (As shown). Beamforming at a base station is, for example, Rx beam from a set of beams. It may include a sweep. (As indicated by the dashed arrows in the top row of U1 and U2, an ellipse.) (The circle is shown rotating counterclockwise). Using procedure U2, the UE is fixed Tx It may be possible for the base station to adjust its Rx beam when using the beam. UE and / or the base station uses a smaller set of beams than the one used in procedure P1, and It is possible to perform procedure U2 using a narrower beam than the one used in procedure P1. Yes, it is possible. This can also be called beam refinement. The UE is a fixed Rx beam at the base station. When using the beam, procedure U3 can be performed to adjust its Tx beam.

[0163] Based on the detection of a beam fault, the UE may initiate a beam fault recovery (BFR) procedure. Based on the initiation of the BFR procedure, the UE requests a BFR request (e.g., preamble, UCI, S R, MAC CE, and / or similar signals may be transmitted. The UE can then transmit the relevant control signals. The quality of the channel's beam pair link is unsatisfactory (for example, higher than the error rate threshold). Error rate, received signal power lower than the received signal power threshold, timer expiration, and Beam obstructions can be detected based on the determination that they have / or similar obstructions.

[0164] UE consists of one or more SS / PBCH blocks and one or more CSI-RS blocks. The source and / or one or more demodulated reference signals (DMRS) The quality of a beam pair link can be measured using a reference signal (RS). The quality of the signal is measured by the Block Error Rate (BLER), RSRP value, and signal-to-interference plus noise. The signal-to-noise ratio (SINR) value, reference signal reception quality (RSRQ) value, and / or RS resource It may be based on one or more of the measured CSI values. The base station's RS resources are One of the channels (e.g., control channel, shared data channel, and / or similar) It may be possible to indicate that it is positioned (QCL'd) in the same location as one or more DM-RSs. The channel's RS resource and one or more DMRSs are connected to the UE via the RS resource. Channel characteristics from transmission (e.g., Doppler shift, Doppler spread, mean delay, Delayed spread, spatial Rx parameter, fade, and / or similar effects are channel QCL can be generated when the channel characteristics are similar to or identical to those of the transmission to the UE via the same channel. ru.

[0165] Networks (e.g., gNB and / or ng-eNB of the network) and / Alternatively, the UE may initiate a random access procedure. UEs in the RRC_IDLE state and / or UEs in the RRC_INACTIVE state initiate a random access procedure, The UE may request network connection setup. A random access procedure can be initiated from this state. The UE initiates a random access procedure, Request an uplink resource (for example, if no uplink resources are available, S For R's uplink transmission), and / or uplink timing (e.g., A The UE can retrieve the (if the link synchronization status is not synchronized) The access procedure is initiated, and one or more System Information Blocks (SIBs) (for example, (Other system information such as SIB2, SIB3, and / or similar may be requested.) The UE can initiate a random access procedure for a beam fault recovery request. The network takes time for handover and / or SCell addition. A random access procedure can be initiated to establish alignment.

[0166] Figure 13A shows a four-step competition-based random access procedure. Before the procedure begins... The base station may send configuration message 1310 to the UE. Figure 13A shows Msg1 13 11, Msg2 1312, Msg3 1313, and Msg4 1314 are four messages. Sending a message. Msg1 1311 is a preamble (or random access). It may include a preamble and / or be called a preamble. Msg2 1312 may include a Random Access Response (RAR), and / or a random It can also be called a Reverse Access Response (RAR).

[0167] Configuration message 1310 is sent, for example, using one or more RRC messages. It can be trusted. One or more RRC messages are sent to one or more random messages to the UE. Access Channel (RACH) parameters may be shown. One or more RACH parameters A meter is a general parameter 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 include at least one of the following. The base station or broadcast one or more RRC messages to one or more UEs or Multicasting is possible. One or more RRC messages are UE-specific. (For example, the RRC_CONNECTED state and / or RRC_INACTI A dedicated RRC message sent to the UE in the VE state. The UE is one or more. Based on the RACH parameters, Msg1 1311 and / or Msg3 13 The time-frequency resources and / or uplink transmit power for 13 transmissions can be determined. Based on one or more RACH parameters, the UE will send Msg2 1312 The receive timing and downlink channel for receiving Msg4 1314 It can be decided.

[0168] One or more RACH parameters provided in configuration message 1310 are Ms One or more physical RACH (PRACH) opportunities available for sending g1 1311 It can be shown. One or more PRACH opportunities may be predefined. Multiple RACH parameters are one or more RACH opportunities It can indicate the available set (e.g., prach-ConfigIndex). Or multiple RACH parameters are (a) one or more PRACH opportunities and (b) It may show the relationship with one or more reference signals. The terminal consists of (a) one or more preambles and (b) one or more reference signals. The relationship between them can be shown. One or more reference signals are used in the SS / PBCH block and / or or it could be CSI-RS. For example, one or more RACH parameters are PR The number of SS / PBCH blocks mapped to ACH opportunities, and / or SS / PB This may indicate the number of preambles mapped to CH blocks.

[0169] Using one or more RACH parameters provided in configuration message 1310 Then, determine the uplink transmit power for Msg1 1311 and / or Msg3 1313. It can be determined. For example, one or more RACH parameters can be used as the basis for sending the preamble. Quasi-power (e.g., received target power and / or initial power of preamble transmission) This may indicate one or more RACH parameters. Power offset is possible. For example, one or more RACH parameters may affect the power Ramping step, power offset between SSB and CSI-RS, Msg1 131 Power offset between transmission 1 and Msg3 1313, and / or preamble glue It may indicate the power offset value between the PU. One or more RACH parameters may indicate that the UE At least one reference signal (e.g., SSB and / or CSI-RS) and / or This is an uplink carrier (e.g., a normal uplink (NUL) carrier and / or One or more thresholds to determine a complementary uplink (SUL) carrier It can be demonstrated.

[0170] Msg1 1311 sends one or more preambles (for example, preamble transmission The RRC message may include a letter and one or more preamble retransmissions. Or multiple preamble groups (e.g., group A and / or group B) It can be used to construct. A preamble group is one or more preambles It may include the following. The UE is based on the path loss measurement and / or the size of Msg3 1313. Therefore, the preamble group can be determined. The UE uses one or more reference signals (for example) Then, measure the RSRP of SSB and / or CSI-RS, and the RSRP threshold (e.g., rsrp-ThresholdSSB and / or rsrp-ThresholdCS It is possible to determine at least one reference signal having an RSRP greater than I-RS. UE, For example, the association between one or more preambles and at least one reference signal When composed of RRC messages, one or more reference signals and / or selected Select at least one preamble associated with the selected preamble group. obtain.

[0171] The UE receives one or more RACH parameters in configuration message 1310. Based on this, the preamble can be determined. For example, UE can measure path loss and RSRP. The preamble can be determined based on the size of, and / or Msg3 1313. In another embodiment, one or more RACH parameters are preamble format The maximum number of preamble transmissions, and / or one or more preamble groups. This indicates one or more thresholds for determining (for example, group A and group B). The base station uses one or more RACH parameters to obtain one or more A preamble and one or more reference signals (e.g., SSB and / or CSI-RS) A UE can be formed by an association between ) and ). If an association is formed, the UE is associated with Based on this, the preamble can be determined to be included in Msg1 1311. 1311 may be transmitted to the base station via one or more PRACH opportunities. UE, For the selection of the preamble and the determination of the PRACH opportunity, one or more reference signals ( For example, SSB and / or CSI-RS can be used. Parameters (e.g., ra-ssb-OccasionMskIndex and / or (ra-OccasionList) PRACH opportunity and one or more reference signals This may indicate a correlation between them.

[0172] If no response is received after sending the preamble, the UE will resend the preamble. The UE may increase uplink transmit power for preamble retransmission. This is a network configured for path loss measurement and / or target receiving pre Based on the ampble power, the initial preamble transmit power can be selected. The UE can select the preamble It may be decided to retransmit the signal, and the uplink transmit power may be ramped up. E is one or more RACH parameters indicating the ramping step of preamble retransmission. When a router (for example, PREAMBLE_POWER_RAMPING_STEP) is received The ramping step is the amount of incremental increase in uplink transmit power for retransmission. It is possible that the UE uses the same reference signal as the previous preamble transmission (e.g., SSB and / or When determining 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). UE is random accessory The procedure, for example, involves sending one or more RACH parameters ( For example, if it exceeds the threshold configured by preambleTransMax, It can be determined that the defeat was the end of the process.

[0173] The Msg2 1312 received by the UE may include RAR. In some scenarios, Msg2 1312 may contain multiple RARs corresponding to multiple UEs. Message 1312 may be received after or in response to the transmission of Message 1311. 2 1312 is scheduled on DL-SCH and is a random access RNTI (RA It can be displayed on PDCCH using -RNTI). Msg2 1312 is Msg1 Message 1311 may indicate that it was received by the base station. Message 1312 indicates that the UE Msg3 is a time alignment command that can be used to adjust the transmission timing of the UE. Allow scheduling for sending 1313, and / or temporary cell RNTI(T May include C-RNTI). After sending the preamble, the UE will send Msg2 1312 A time window for monitoring PDCCH (e.g., ra-ResponseWindow) This can be initiated. The UE uses the PRACH opportunity to send the preamble. Based on this, it can be determined when to start the time window. For example, UE can use preamble After one or more symbols at the end of the preamble transmission (for example, at the end of the preamble transmission) (At the first PDCCH opportunity from the beginning), a time window may be initiated. The symbol may be determined based on numerology. PDCCH is determined by RRC message Within a common search space that is constructed in this way (for example, the Type1-PDCCH common search space) It is possible. The UE may identify the RAR based on the Radio Network Temporary Identifier (RNTI). RNTI is used in response to one or more events that initiate a random access procedure. It may be used. The UE may use random access RNTI (RA-RNTI). -RNTI may be associated with PRACH opportunities where the UE sends a preamble. For example, UE is OFDM symbol index, slot index, frequency domain Based on the UL carrier indicator of the RAN index and / or PRACH opportunity Then, RA-RNTI can be determined. Examples of RA-RNTI may be as follows. RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80 ×8×ul_carrier_id Here, s_id is the index of the first OFDM symbol of the PRACH opportunity. Often (for example, 0 ≤ s_id < 14), t_id is a PRACH within the system frame. It could also be the index of the first slot of the opportunity (for example, 0 ≤ t_id < 80), f_id may also be an index of PRACH opportunities in the frequency domain (for example) (0≦f_id<8), ul_carrier_id is used for preamble transmission. It can be a UL carrier (for example, 0 for a NUL carrier, and for a SUL carrier) 1). The UE responds to the successful receipt of Msg2 1312 (for example, by identifying Msg2 1312) Using the resources provided, Msg3 1313 can be sent. Msg3 1313 is For example, in the competition-based random access procedure shown in Figure 13A, the competition resolution process is as follows: It can be used for this purpose. In some scenarios, multiple UEs send the same preamble to the base station. It is possible that the base station can provide RAR corresponding to the UE. Multiple UEs can provide RAR If interpreted as corresponding to itself, a discrepancy may occur. Conflict resolution (For example, using Msg3 1313 and Msg4 1314) the UE is different This may increase the likelihood of misusing the UE identity. To do this, the UE assigns a device identifier (for example, assigned) to Msg3 1313. In the case of C-RNTI, TC-RNTI included in Msg2 1312, and / or It may also include other appropriate identifiers.

[0174] Msg4 1314 is received after or in response to the transmission of Msg3 1313. It is possible. If C-RNTI is included in Msg3 1313, the base station will use C-RNT Use I to deal with UEs on PDCCH. The UE's unique C-RNTI is on PDCCH. If detected, the random access procedure is determined to have completed successfully. TC-RN If TI is included in Msg3 1313 (for example, if UE is in the RRC_IDLE state) (or, if not otherwise connected to a base station), Msg4 1314 will send a message. Received using DL-SCH associated with C-RNTI. MAC PDU is correct. Always decrypted, the MAC PDU was sent in Msg3 1313 (for example, sent (matches CCCH SDU, otherwise the corresponding UE conflict resolution identifier) If CE is included, UE can determine that the conflict resolution was successful. The UE may determine that the random access procedure has completed successfully.

[0175] UE is a complementary uplink (SUL) carrier and normal uplink (NUL) carrier. It can consist of a carriage. Initial access (e.g., random access procedure) is performed by an applin It can be supported by a RACH. For example, the base station has two separate RACH configurations, that is, One UE can be configured for a SUL carrier, and the other for a NUL carrier. For random access within a cell composed of UL carriers, the network determines which key It may indicate whether to use a carrier (NUL or SUL). UE can be, for example, one or multiple. If the measurement quality of the reference signal is lower than the broadcast threshold, determine the SUL carrier. Possible. Random access procedure (e.g., Msg1 1311 and / or Msg3 Uplink transmissions (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 between 1 and Msg3 1313. Example For example, UE, based on channel clear assessment (e.g., listening before speaking), Ms Determine the uplink carrier for g1 1311 and / or Msg3 1313 and / or it can be switched.

[0176] Figure 13B shows a two-step, non-contradiction random access procedure. Similar to the 4-step competition-based random access procedure, the base station, before the procedure begins, Configuration message 1320 can be sent to the UE. Configuration message 1320 is a configuration message. This may be similar in some respects to message 1310. Figure 13B shows Msg1 1321 This includes sending two messages, Msg2 1322, Msg1 1321, and Msg2 1322 is similar in several respects to Msg1 131 shown in Figure 13A. This may be similar to 1 and Msg2 1312, as can be seen from Figures 13A and 13B. , a random access procedure without conflicts is provided in Msg3 1313 and / or Msg4 1 It cannot contain a message similar to 314.

[0177] The uncontested random access procedure shown in Figure 13B includes beam fault recovery, other SI requirements, SCell addition and / or handover may be initiated. For example, a base station. The preamble used for Msg1 1321 may be displayed or assigned to the UE. The UE receives the preamble (e.g., via PDCCH and / or RRC) from the base station. It may receive the display of ra-PreambleIndex.

[0178] After sending the preamble, the UE monitors the PDCCH of the RAR for a time window. For example, a beam fault recovery request can be initiated (ra-ResponseWindow). In addition, the base station will send an RRC message (for example, recoverySearchSpaceI d) A separate time window and / or separate PDCC within the search space indicated by H can constitute a UE. The UE is destined for a Cell RNTI (C-RNTI) in the search space. PDCCH transmissions can be monitored. Then, after the UE sends Msg1 1321 and receives the corresponding Msg2 1322 , or in response thereto, the UE may determine that the random access procedure has completed successfully. For example, when a PDCCH transmission is addressed to C-RNTI, random action The UE can determine if the procedure completes successfully. The UE includes an RA containing a preamble identifier corresponding to the preamble sent by the UE. If R is received, and / or RAR contains the MAC sub-PD including the preamble identifier, If U is included, it can be determined that the process has completed successfully. UE is a confirmation of the response to the SI request. It can be determined as an indicator.

[0179] Figure 13C shows another two-step random access procedure, as shown in Figures 13A and 13B. Similar to the random access procedure, the base station sends configuration message 13 before the procedure begins. 30 can be sent to the UE. Configuration message 1330 is a configuration message 131 0 and / or configuration message 1320 may be similar in some respects. Figure 13C shows, Sending two messages, namely Msg A 1331 and Msg B 1332. Includes.

[0180] Msg A 1331 may be sent by the UE via uplink transmission. Msg A 1331 transmits one or more preambles 1341 and / or transports This may include one or more transmissions of transport block 1342. Transport block 13 42 is similar to and / or equivalent to the content of Msg3 1313 shown in Figure 13A. May contain content. Transport block 1342 is UCI (e.g., SR, HARQ) It may include ACK / NACK and / or similar. UE is Msg A After sending 1331, or in response to that transmission, you may receive Msg B 1332. Msg B 1332 is shown in Figures 13A and 13B, as in Msg 2 1312 (for example) For example, RAR, and / or similar to the contents of Msg4 1314 shown in Figure 13A. It may include content that is / or equivalent.

[0181] UE uses licensed spectra and / or unlicensed spectra. For the UE, the two-step random access procedure shown in Figure 13C can be initiated. Based on one or more factors, whether to initiate a two-step random access procedure This can determine whether or not. One or more factors may be the wireless access technology being used (e.g., LTE). , NR and / or similar), whether UE has a valid TA, cell size UE's RRC status, spectrum type (e.g., licensed vs. licensed) (Not provided), and / or any other suitable factors.

[0182] The UE is based on the two-step RACH parameters included in configuration message 1330. And, the transport included in preamble 1341 and / or Msg A 1331 Determine the radio resources and / or uplink transmit power for block 1342. It is possible. The RACH parameter is the modulation and coding scheme (MCS), time-frequency range. Source, and / or preamble 1341 and / or transport block 1 Power control for 342 can be shown. Preamble 1341 (e.g., PRACH) Time-frequency resources and transport block 1342 for communication (e.g., PUS The time-frequency resources for transmission (CH) are FDM, TDM, and / or CDM. It can be used for multiplexing. The RACH parameter is monitored by the UE in Msg B 1332. Determining the reception timing and downlink channel for viewing and / or receiving. This can make that possible.

[0183] Transport block 1342 handles data (e.g., latency-sensitive data) to the UE. Identifiers, security information, and / or device information (e.g., Internati Includes online Mobile Subscriber Identity (IMSI) It is possible. The base station sends Msg B 1332 as a response to Msg A 1331. It is credible. Msg B 1332 is a preamble identifier, timing advance command. D, power control commands, uplink permission (e.g., wireless resource allocation and / or (MCS), UE identifier for conflict resolution, and / or RNTI (e.g., C-RN) It may include at least one of TI or TC-RNTI. UE is Msg B The preamble identifier 1332 matches the preamble sent by the UE, and / or the UE identifier in Msg B 1332 is the UE identifier in Msg A 1331 ( For example, if it matches transport block 1342), a 2-step random action It can be determined that the procedure is completed successfully.

[0184] UE and base stations can exchange control signaling. Control signaling is L1 / L This may also be called 2-controlled signaling, involving the PHY layer (e.g., layer 1) and / or MAC. It may originate from a layer (e.g., layer 2). Control signaling is transmitted from the base station to the UE. Uplink control signaling and / or uplink control signals transmitted from the UE to the base station This may include signaling.

[0185] Downlink control signaling involves downlink scheduling assignment and uplink Uplink schedule indicating link wireless resources and / or transport format Türing permission, slot format information, preemption display, power control commands , and / or any other appropriate signaling. UE may include physical downlink Downlink in the payload transmitted by the base station on the Link Control Channel (PDCCH) Link control signaling can be received. Payloads transmitted on PDCCH are downlink It may also be called Link Control Information (DCI). In some scenarios, PDCCH is the UE It can be a group-common PDCCH (GC-PDCCH) that is common to the group.

[0186] The base station uses one or more cyclic redundancy checks (C) to facilitate the detection of transmission errors. RC) Parity bits can be attached to DCI. DCI is UE (or group of UEs) If intended for, the base station will use the UE identifier (or the identifier of the group of UEs) The CRC parity bit can be scrambled. The CRC parity bit can be scrambled using an identifier. Crumble is the addition of Modulo-2 to the identifier value and CRC parity bit. The identifier may include an exclusive OR operation. The identifier is a 16-bit value for the wireless network. Temporary identifiers (RNTIs) may be included.

[0187] DCI can be used for different purposes. One purpose is to scramble the CRC parity bit. This can be indicated by the type of RNTI used. For example, paging RNT DCI with a scrambled CRC parity bit in I(P-RNTI) is a P May indicate sizing information and / or system information change notifications. P-RNTI is a hexadecimal number. It can be predefined as "FFFE" in the system information RNTI (SI-RNTI). DCI with scrambled CRC parity bits broadcasts system information This may indicate a cast transmission. SI-RNTI is predefined as "FFFE" in hexadecimal. It is possible. CRC Paris scrambled with Random Access RNTI (RA-RNTI) DCI with tibits may exhibit a random access response (RAR). Cell RNT DCI with CRC parity bits scrambled with I(C-RNTI) is dynamic Scheduled unicast transmission and / or random access to PDCCH sequence This may indicate a rigger. CRC particles scrambled in a temporary cell RNTI (TC-RNTI). DCI with a rarity bit can demonstrate conflict resolution (for example, Ms shown in Figure 13A). Msg3, similar to g3 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 This includes Cell RNTI (MCS-C-RNTI) and / or similar.

[0188] Depending on the purpose and / or content of DCI, the base station may use one or more DCI fields. DCI can be transmitted via matte. For example, DCI format 0_0 is PUSC within a cell. It can be used for scheduling H. DCI format 0_0 is fallback DC It can be in I format (e.g., with a compact DCI payload). DCI Format 0_1 ​​can be used for scheduling PUSCH within a cell (for example) (Having more DCI payloads than DCI format 0_0). DCI format Set 1_0 can be used for scheduling PDSCH within a cell. DCI format T1_0 can be a fallback DCI format (for example, a compact DC (Having an I payload). DCI format 1_1 is the schedule of PDSCH in a cell. Can be used for ringing (for example, more DCI payloads than DCI format 1_0) (Having a code). DCI format 2_0 is a group of slot formats for UE. It can be used to provide a display. DCI format 2_1 is used by UE to send to UE. U It can be used to notify group E. DCI format 2_2 is PUCCH Alternatively, it can be used to send Transmit Power Control (TPC) commands for PUSCH. DCI Format 2_3 is a group of TPC commands for SRS transmission by one or more UEs. It can be used to send the link. The new DCI format will be defined in a future release. The DCI format may have different DCI sizes, or the same DCI size. They can share.

[0189] After scrambling DCI with RNTI, the base station performs channel coding (e.g., polarity coding). D using (scribing), rate matching, scrambling and / or QPSK modulation CI can be processed. The base station is used and / or configured for PDCCH. The encoded and modulated DCI can be mapped onto the DCI payload. Based on the area and / or base station coverage, the base station will implement several continuous control channels. DCI can be transmitted via PDCCH occupying a Nell element (CCE). Consecutive CCEs The number (called the aggregation level) is 1, 2, 4, 8, 16, and / or any other appropriate It can be a critical number. CCE considers the number of resource-element groups (REGs) (e.g., 6). It may include. REG may include resource blocks within OFDM symbols. The mapping of encoded and modulated DCI on the element is the mapping of CCE and REG. It may also be based on ping (for example, CCE~REG mapping).

[0190] Figure 14A shows an example of a CORESET configuration for the bandwidth portion. There is one base station. Alternatively, DCI can be sent via PDCCH on multiple control resource sets (CORESET). It is credible. CORESET allows the UE to decrypt DCI using one or more search spaces. The base station may include time-frequency resources to be converted within the time-frequency domain. A CORESET can be formed. In the embodiment shown in Figure 14A, the first CORESET 140 1 and the second CORESET1402 occur with the first symbol in the slot. CORESET1401 is the second CORESET1402 in the frequency domain and Burlap. The third CORESET1403 occurs with the third symbol in the slot. The fourth CORESET1404 occurs with the 7th symbol of the slot. An ET may have a different number of resource blocks within its frequency domain.

[0191] Figure 14B shows the CCE~R for DCI transmission on CORESET and PDCCH processing. An example of EG mapping is shown. CCE~REG mapping is interleaved mapping. (For example, for the purpose of providing frequency diversity) or non-interleaved mapping (for example) (For example, to facilitate interference adjustment and / or frequency-selective transmission of control channels.) The base station has different or identical CCE~REG mappings on different CORESETs. This can be done. CORESET is associated with CCE~REG mapping via RRC configuration. It may be rejected. CORESET is an antenna port quasi-identical position (QCL) parameter. It can consist of the following. The QCL parameter of the antenna port is PDCC in CORESET. This may show the QCL information of the demodulated reference signal (DMRS) for H reception.

[0192] The base station has one or more CORESETs and one or more search space sets. RRC messages containing configuration parameters can be sent to the UE. The `Tar` may indicate a relationship between the search space set and CORESET. The search space set is, This may include a set of PDCCH candidates formed by CCE at a given aggregation level. Configuration parameters include the number of PDCCH candidates monitored per aggregation level, and PDCCH monitoring. Periodicity and PDCCH monitoring patterns, one or more DCIs monitored by the UE The format and / or search space set, whether it is a common search space set or UE-specific. This can indicate whether it is a search space set. A set of CCEs within a common search space set is: A set of CCEs within a UE-specific search space set that may be predefined and known to the UE. This can be configured based on the UE's identity (e.g., C-RNTI).

[0193] As shown in Figure 14B, the UE determines the CORESET time based on the RRC message. Frequency resources can be determined. Based on the configuration parameters of CORESET, the UE determines CCE~REG mapping to CORESET (e.g., interleaved or non-interleaved) The interface and / or mapping parameters can be determined. The UE can determine the RRC. Based on the message, the number of search space sets configured on CORESET (for example, the most The large can be determined as 10). The UE determines the PDC according to the configuration parameters of the search space set. A set of CH candidates can be monitored. The UE can detect one or more DCIs. A set of PDCCH candidates within one or more CORESETs may be monitored. Monitoring is performed. According to the DCI format, one or more PDCs from the set of PDCCH candidates This may include decoding the CH candidate. Monitoring may involve the possible (or configured) PDCCH Location, possible (or configured) PDCCH format (for example, in the common search space) The number of CCEs, the number of PDCCH candidates, and / or PDs in the UE-specific search space. The number of CCH candidates, and one DCI format that is possible (or constitutes) Alternatively, it may include decoding the DCI contents of multiple PDCCH candidates. Decoding is performed by It can also be called Indian decoding. UE performs a CRC check (for example, the RNTI value) In response to the scramble bit for the matching DCI CRC parity bit, UE The UE can determine an effective DCI for that. The UE considers the information included in the DCI (e.g., schedule Uplink assignment, uplink permission, power control, slot format display, downlink It can handle (input prevention and / or similar things).

[0194] UE stands for Uplink Control Signaling (e.g., Uplink Control Information (UCI)). It can transmit to the base station. Uplink control signaling receives DL-SCH transistor This may include a Hybrid Automatic Iterative Request (HARQ) acknowledgment for a Sport Block. The UE sends a HARQ acknowledgment after receiving the DL-SCH transport block. It is trustworthy. Uplink control signaling is channel quality of the physical downlink channel. This may include channel status information (CSI) indicating the status. The UE may transmit the CSI to the base station. The base station, based on the received CSI, sets the transmission format parameters for downlink transmission. The meter (including, for example, multi-antenna and beamforming schemes) can be determined. The UPlink control signaling may include scheduling requests (SRs). The UE may transmit an SR indicating that uplink data is available for transmission to the base station. Physical uplink control channel (PUCCH) or physical uplink shared channel (P UCI (e.g., HARQ Acknowledgment (HARQ-ACK), CSI) via USCH Reports, SRs, etc. can be submitted. UE can submit several PUCCH formats. One of these can be used to transmit uplink control signaling via PUCCH.

[0195] There are five possible PUCCH formats, and UE is the size of the UCI (e.g., UCI transmission). PUCCH format based on the number of uplink symbols and UCI bits of the signal The set can be determined. PUCCH format 0 is one or two OFDM symbols It may have a length and may contain 2 or fewer bits. The UE will send one or two The number of HARQ-ACK information bits (HA) that exceed the symbol and have a positive or negative SR. If there is one or two RQ-ACK / SR bits, PUCCH format 0 You can use this to send UCI via PUCCH resources. PUCCH format T1 may occupy a number between 4 and 14 OFDM symbols and may contain 2 or fewer bits. But that's fine. UE is a transmission with four or more symbols and the HARQ-ACK / SR bits If the number is one or two, PUCCH format 1 can be used. Format 2 may occupy one or two OFDM symbols and may contain more than 2 bits. That's fine. UE is when the transmission exceeds one or two symbols and the number of UCI bits is two. In the above cases, PUCCH format 2 may be used. PUCCH format 3 is The number of OFDM symbols may be between 4 and 14, and may include more than 2 bits. UE is a transmission of four or more symbols, has two or more UCI bits, and is PUC If the CH resource does not contain orthogonal cover codes, PUCCH format 3 can be used. PUCCH format 4 may occupy a number between 4 and 14 OFDM symbols. It may include more than 2 bits. UE is a transmission of four or more symbols, and UCI bits If the number of resources is two or more and the PUCCH resource contains orthogonal cover code, then PUCC H-format 4 can be used.

[0196] The base station, for example, uses RRC messages to communicate with multiple PUCCH resource sets. Configuration parameters can be sent to the UE. Multiple PUCCH resource sets (e.g., maximum The four sets can be configured on the cell's uplink BWP. PUCCH resource set The set is a PUCCH resource set index, a PUCCH resource identifier (for example, Multiple PUCCH resources identified by pucch-Resourceid) A number of PUCCH resources and / or UEs within a PUCCH resource set The number of UCI information bits that can be transmitted using one of the PUCCH resources It can consist of (for example, the maximum number). When consisting of multiple PUCCH resource sets, UE is UCI information bits (e.g., HARQ-ACK, SR, and / or CSI) Based on the total bit length, one of several PUCCH resource sets can be selected. If the total bit length of the UCI information bits is 2 or less, the UE will execute the PUCCH resource. The first PUCCH resource set whose index is equal to "0" may be selected. If the total bit length of the CI information bits is greater than 2 and less than or equal to the first set value, the UE The second PUCCH resource set has a PUCCH resource set index equal to "1". A set can be selected. The total bit length of the UCI information bits is set to the first setting. If the value is greater than the first value and less than or equal to the second set value, UE is equal to "2". It is possible to select a third PUCCH resource set that has a source set index. It is possible. 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 it is less than or equal to 1406, the UE is equal to "3" PUCCH resource set A fourth PUCCH resource set with an index can be selected.

[0197] After determining the PUCCH resource set from multiple PUCCH resource sets, the UE PUCCH rush for UCI (HARQ-ACK, CSI, and / or SR) transmission The PUCCH resource can be determined from the set. The UE receives the DC on the PDCCH. PUCC within I (e.g., DCI format 1_0 or DCI format 1_1) Based on the H resource indicator, PUCCH resources can be determined. DCI 3B The PUCCH resource indicator shows the eight PUCs in the PUCCH resource set. This may indicate one of the CH resources. Based on the PUCCH resource indicator, UE is The PUCCH resources indicated by the PUCCH resource indicator in DCI You can use this to send UCI (HARQ-ACK, CSI and / or SR) Cut.

[0198] Figure 15 shows a wireless device 1502 communicating with a base station 1504 according to an embodiment of the present disclosure. An example is shown. The wireless device 1502 and base station 1504 are shown in Figure 1A. Communication network 100, mobile communication network 150 shown in Figure 1B, or the It may be part of a mobile communication network, such as another communication network. Figure 15 shows one Only one wireless device 1502 and one base station 1504 are shown. However, mobile The communication network has the same or similar configuration as shown in Figure 15, with multiple U It should be understood that this may include E and / or multiple base stations.

[0199] Base station 1504 connects wireless device 1502 to an air interface (or radio interface). On the interface 1506, it can connect to the core network (not shown) via wireless communication. The communication from base station 1504 to wireless device 1502 is performed on air interface 1506. The signal direction is known as the downlink and is transmitted over the air interface to the radio device 1502. The communication direction from base station 1504 is known as the uplink. Downlink transmission is Using FDD, TDD, and / or some combination of two redundancy techniques It can be separated from the uplink transmission.

[0200] In the downlink, the data transmitted from base station 1504 to wireless device 1502 is: The data can be provided to the processing system 1508 of the base station 1504. The work can be provided to the processing system 1508. The uplink uses wireless devices. The data transmitted from 1502 to base station 1504 is processed by the processing system of wireless device 1502. It may be provided to M1518. Processing systems 1508 and 1518 are layer 3 And the OSI functionality of Layer 2 can be implemented to process the data for transmission. Layer 2 is, for example, Regarding Figures 2A, 2B, 3, and 4A, the SDAP layer, PDCP layer, and RLC layer are discussed. and may include a MAC layer. Layer 3 may include an RRC layer with respect to Figure 2B.

[0201] The data that has been processed by the processing system 1508 is transmitted to the wireless device 1502. The data can be provided to the transmission processing system 1510 of the base station 1504. Similarly, the processing system After being processed by M1518, the data is transmitted to base station 1504, wireless device It may be provided to the transmission processing system 1520 of 1502. Transmission processing system 1510 and The transmission processing system 1520 can implement the OSI function of layer 1. Layer 1 is shown in Figures 2A and 2B. The PHY layer may be included with respect to Figures 3 and 4A. For transmission processing, the PHY layer is, for example, For example, forward error correction coding of transport channels, interleaving, rate matching Ching, mapping of transport channels to physical channels, modulation of physical channels, Multiple Input Multiple Output (MIMO) or multi-antenna processing, and / or similar It is possible.

[0202] At base station 1504, the receiving processing system 1512 receives the application from wireless device 1502. The base station can receive the transmission. In the wireless device 1502, the receiving processing system 1522 is the base station. Downlink transmissions can be received from station 1504. Receiving processing system 1512 and receiving processing The logic system 1522 can implement the OSI function of layer 1. Layer 1 is shown in Figures 2A, 2B, and 3. , and with respect to Figure 4A, it may include a PHY layer. For receiving processing, the PHY layer may include, for example, Error detection, forward error correction decoding, deinterleaving, and transmission to physical channels. Demapping of physical channels, demodulation of physical channels, MIMO or multi-antenna processing. , and / or similar things may be done.

[0203] As shown in Figure 15, the wireless device 1502 and the base station 1504 have multiple antennas This may include: Multiple antennas, spatial multiplexing (e.g., single-user MIMO or multiple User MIMO, transmit / receive diversity, and / or beamforming are among the following: Alternatively, it can be used to implement multiple MIMO or multi-antenna technologies. In this embodiment, the wireless device 1502 and / or base station 1504 have a single antenna. It is possible.

[0204] Processing systems 1508 and 1518 each have memory 1514 and Memory 1514 and Memory 1524 may be associated with memory 1524. (For example, one or more non-temporary computer-readable media) is one of the things discussed in this application. Alternatively, to perform multiple functions, processing system 1508 and / or processing system Computer program instructions or code that can be executed by 1518 can be stored. Although not shown in Figure 15, there are also transmission processing systems 1510 and 1520. The receiving processing system 1512 and / or receiving processing system 1522 are those Computer programs that can be run to perform one or more of the respective functions. Memory for storing Gram instructions or code (e.g., one or more non-temporary comps It can be bound to a user-readable medium.

[0205] Processing system 1508 and / or processing system 1518 are one or more It may include a troller and / or one or more processors. A number of controllers and / or one or more processors, for example, a general-purpose processor Sensors, digital signal processors (DSPs), microcontrollers, application-specific components Integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and / or other programmable logic devices, discrete gates and / or Transistor logic, discrete hardware components, onboard units It may include a set, or any combination thereof. Processing system 1508 and / Alternatively, the processing system 1518 performs signal coding / processing, data processing, power control, and input / output processing. , and / or the wireless device 1502 and base station 1504 operate in a wireless environment It may perform at least one of any other functions that could enable it to do so.

[0206] Processing system 1508 and / or processing system 1518 are each one or Multiple peripheral devices 1516 and one or more peripheral devices 1526 can be connected. Alternatively, multiple peripheral devices 1516 and one or more peripheral devices 1526 have features and / or software and / or hardware that provides the functionality, such as speakers, Microphone, keypad, display device, touchpad, power supply, satellite transceiver, universal USB serial bus port, hands-free headset, frequency modulation (FM) wireless Units, media players, internet browsers, electronic control units (for example, Vehicle-specific sensors (e.g., accelerometer, gyroscopy), and / or one or more sensors (e.g., accelerometer, gyroscopy) Loop, temperature sensor, radar sensor, lidar sensor, ultrasonic sensor, light sensor - May include a camera and / or similar. Processing system 1508 and / or processing system 1518 includes one or more peripheral devices 1516 and / or one Receive user input data from one or more peripheral devices 1526 and / or It can provide output data. The processing system 1518 within the wireless device 1502 is powered It can receive power from and / or other components within the wireless device 1502 It can be configured to distribute power to the network. The power supply is one or more power supplies. For example, including batteries, solar cells, fuel cells, or any combination thereof. Good. Processing system 1508 and / or processing system 1518 respectively use GPS It can be connected to chipset 1517 and GPS chipset 1527. GPS chip Set 1517 and GPS chipset 1527 are, respectively, wireless device 1502 It may also be configured to provide geographic location information of base station 1504.

[0207] Figure 16A shows an exemplary structure for uplink transmission. Physical uplink sharing A baseband signal representing a channel can perform one or more functions. This one or more function is for scrambling, generating complex numerical symbols. Crumble bit modulation, complex numerical modulation symbols on one or more transmitting layers Binding, conversion precoding for generating complex number symbols, complex number symbols Precoding, mapping of precoded complex numerical symbols to resource elements PING, Complex Value Time Domain Single Carrier Frequency Division Multiple Access (SC-FDMA) Or generation of CP-OFDM signals to the antenna port, and / or less of the same thing It may include at least one. In one embodiment, when conversion precoding is enabled. This can generate an SC-FDMA signal for uplink transmission. In one embodiment, conversion If precoding is not enabled, C for uplink transmission is shown in Figure 16A. P-OFDM signals can be generated. These functions are shown as examples. It is expected that other mechanisms can be implemented in various embodiments.

[0208] Figure 16B shows the modulation and upconversion of a baseband signal to the carrier frequency. An exemplary structure for this is shown. The baseband signal is a complex value to the antenna port. SC-FDMA or CP-OFDM baseband signals and / or complex numerical physical signals This could be a Dam Access Channel (PRACH) baseband signal. Filter before transmission. A ring can be used.

[0209] Figure 16C shows an exemplary structure of a downlink transmission. The physical downlink channel is shown. A baseband signal can perform one or more functions. This involves scrambling the encoded bits within the codeword that should be transmitted over the physical channel. Ring, modulation of scrambled bits to generate complex numerical modulation symbols, complex Mapping of one or more numerical modulation symbols onto the transmitting layer, on the antenna port. Precoding of complex numerical modulation symbols on the layer for transmission, antenna port Mapping of complex-valued modulation symbols to resource elements, complex-valued time per antenna port This may include the generation of domain OFDM signals and / or similar. The functions shown are examples, and other mechanisms can be implemented in various embodiments. It is expected that this will be possible.

[0210] Figure 16D shows the modulation and upconversion of a baseband signal to the carrier frequency. Another exemplary structure for implementation is shown. The baseband signal is a complex number for the antenna port. The value can be an OFDM baseband signal. Filtering can be used before transmission. ru.

[0211] Wireless devices are configured with multiple cells (e.g., primary cell, secondary cell). One or more messages containing parameters (e.g., RRC messages) are sent to the base station. It can be received from. A wireless device can receive signals from at least one base station (for example) via multiple cells. It can communicate with two or more base stations (for example) that have a dual connection. One or more messages (e.g.) For example, as part of the configuration parameters, the physical, MA parameters used to configure the wireless device. The parameters of the C, RLC, PCDP, SDAP, and RRC layers may be included. For example, the The configuration parameters are the parameters used to configure the physical layer and MAC layer channels, bearers, etc. It may include a component. For example, the configuration parameters may include the physical layer, MAC layer, RLC layer, and PCD. Parameters indicating timer values ​​for the P layer, SDAP layer, RRC layer, and / or communication channel. It may include a meter.

[0212] When the timer starts, execution begins and continues until it is stopped or expires. It can continue. The timer can be started if it is not running, or restarted if it is running. It is possible. A timer may be associated with a value (for example, a timer may start from a certain value). (or it may be restarted, or it may start from zero and expire when it reaches a value). The duration of the timer is determined by whether the timer stops (for example, due to BWP switching), or It cannot be renewed until it expires. Use a timer to measure the duration / window of the process. This specification can determine implementations and procedures related to one or more timers. When referring to this, it should be understood 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 the duration of the procedure. It will be understood that it can be used to measure the / window. For example, random activity The Seth response window timer is the window time for receiving random access responses. It can be used to measure the random access response window timer. In one embodiment, a random access response window timer is used. Instead of the start and end dates, the time difference between two timestamps can be used. —When it is resumed, the process for measuring the time window may be resumed. Other exemplary Implementation may be provided to resume the measurement of the time window.

[0213] A gNB can transmit one or more MAC PDUs to a wireless device. In one embodiment, the MAC PDU has a length that is byte-aligned (e.g., a multiple of 8 bits). It can be a bit string. In one embodiment, the most significant bit of the bit string is a The leftmost bit of the first row of the bull, and the least significant bit is the rightmost bit of the last row of the table. It can be represented by a table. More generally, a bit string is from left to right. It is read first, and then read in the order of the lines. In one embodiment, MAC PDU The bit order of the parameter fields within is determined by the first most significant bit of the leftmost bit, and It is represented by the last least significant bit of the rightmost bit.

[0214] In one embodiment, the MAC SDU is a byte-aligned (e.g., a multiple of 8 bits) ) can be a bit string. In one embodiment, MAC SDU is the bit string from the first bit onwards. It may be included in the MAC PDU. In one embodiment, the MAC CE has a length that is byte-aligned. (For example, a multiple of 8 bits) It can be a bit string. In one embodiment, MAC substring The header is a bit string whose length is byte-aligned (e.g., a multiple of 8 bits). Obtain. In one embodiment, the MAC subheader contains the corresponding MAC SDU, MAC CE, Alternatively, it can be placed immediately before the padding. The MAC entity is DL MAC The reserved bits of the PDU can be ignored.

[0215] In one embodiment, the MAC PDU may include one or more MAC sub-PDUs. One of the MAC subPDUs has a MAC subheader. (including padding), MAC subheader and MAC SDU, MAC subheader - and MAC CE, as well as / or MAC subheaders and padding are included. The size of the MAC SDU can be variable. The MAC subheader is the MAC SDU. It can accommodate MAC CE or padding.

[0216] In one embodiment, the MAC subheader is MAC SDU, variable-size MAC CE, Alternatively, if padding is required, the MAC subheader will have a 1-bit R field, 1 Bit-length F field, multi-bit length LCD field, and / or multi It may contain an L-field of bit length.

[0217] Figure 17A shows the R field, F field, LCID field, and L field. An example of a MAC subheader with the following is shown. Figure 17A shows an exemplary MAC subheader with the following The LCD field can be 6 bits long, and the L field can be 8 bits long. This is possible. Figure 17B shows the R field, F field, LCID field, and L An example of a MAC subheader with fields is shown in Figure 17B. In the header, the LCID field can be 6 bits long, and the L field can be 16 The length of the bit may be fixed. MAC subheader is fixed size MAC CE or paddy When supporting , the MAC subheader has a 2-bit R field and a multi-bit field. It may include an LCID field of length. Figure 17C shows the R field and LCID field. An example of a MAC subheader including a table is shown. Figure 17C shows an exemplary MAC subheader. —So, the LCD field can be 6 bits long, and the R field can be 2 bits long. It can be a length.

[0218] Figure 18A shows an example of the DL MAC PDU, such as MAC CE 1 and 2. Multiple MAC CEs can be placed together. MAC Sub-PD containing MAC CEs U is any MAC sub PDU containing MAC SDU or MAC sub containing padding It can be placed in front of the PDU. Figure 18B shows an example of the UL MAC PDU. Multiple MAC CEs, such as MAC CE 1 and 2, can be placed together. MAC sub-PDUs, including MAC CE, include all MAC sub-PDUs, including MAC SDU. It can be placed after. Furthermore, MAC subPDU includes MAC sub It can be placed before the PDU.

[0219] In one embodiment, the MAC entity of gNB has one or more MAC CEs without It can be sent to the MAC entity of a linear device. Figure 19 shows one or more Examples of multiple LCDs that may be associated with MAC CE are shown. One or more MA C CE is the SP ZP CSI-RS resource set startup / shutdown MAC CE, PUC CH spatial relationship activation / deactivation MAC CE, SP SRS activation / deactivation MAC CE, PUCC SP CSI report startup / stop MAC CE, UE-specific PDCCH TC regarding H I-state indicator MAC CE, UE-specific PDSCH TCI-state indicator MAC CE, aperiodic Target CSI trigger state subselection MAC CE, SP CSI-RS / CSI-I M Resource Set Start / Stop MAC CE, UE Conflict 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 startup / shutdown MAC CE (4 octets), and / or duplicate startup / shutdown MAC It includes at least one of the CEs. In one embodiment, the MAC entity of the gNB MAC CEs such as MAC CEs are sent to the MAC entity of a wireless device. The MAC subheader corresponding to MAC CE may have an LCID. MAC CE may have different LCDs in the MAC subheader corresponding to MAC CE. For example, the LCID given by 111011 in the MAC subheader is the MAC The MAC CE associated with the subheader is the MAC CE for the long DRX command. This could demonstrate that.

[0220] In one embodiment, the MAC entity of a wireless device is one or more MAC CE This can be sent to the MAC entity of the gNB. Figure 20 shows one or more An example of MAC CE is shown. One or more MAC CEs are in a short buffer state. Report (BSR) MAC CE, Long BSR MAC CE, C-RNTI MAC C E, configured authorization verification MAC CE, single entry PHR MAC CE, multiple entries Tory PHR MAC CE, short-blocking BSR, and / or long-blocking BSR It may include at least one of ours. In one embodiment, MAC CE corresponds to MAC CE The MAC subheader may have an LCID. Different MAC CEs are MA C CE may have different LCIDs in its MAC subheader. For example, MAC subheader The LCID given by 111011 in the header is associated with the MAC subheader. This may indicate that the MAC CE being accessed is a short-circuit blocking command MAC CE.

[0221] In carrier aggregation (CA), two or more component carriers (CC) can be aggregated. The wireless device uses CA technology, depending on the function of the wireless device, one or Multiple CCs can receive or transmit simultaneously. In one embodiment, the wireless device is connected to an adjacent CC. CA may support C and / or non-adjacent CCs. For example, CC consists of one primary cell (PCell) and one or more secondary cells. It can be organized into a Dally Cell (SCell). When configured using CA, wireless devices It may have one RRC connection to the network. Establishing / re-establishing / handling the RRC connection. During the RRC connection, the cell providing NAS mobility information may be a serving cell. During the subsequent re-establishment / handover procedure, the cell providing security input is the serving cell. It is possible. In one embodiment, the serving cell may represent a PCell. In one embodiment, g NB determines the configuration parameters of one or more SCells depending on the functionality of the wireless device. One or more messages, including a marker, may be transmitted to a wireless device.

[0222] When configured using CA, the base station and / or radio device will be able to use the radio device's network. To improve battery or power consumption, use the SCell's start / stop mechanism. Obtain. When a wireless device is configured with one or more SCells, the gNB is one Alternatively, you can activate or deactivate at least one of the multiple SCells. It is possible. When configuring SCell, the SCell state associated with SCell is "Active SCell can be stopped unless it is set to "Blocked" or "Hibernated".

[0223] The wireless device responds to receiving the SCell start / stop MAC CE by sending an SC ell can be started / stopped. In one embodiment, the gNB sends SC to the wireless device. One including an ell timer (e.g., sCellDeactivationTimer) Alternatively, it may send multiple messages. In one embodiment, the wireless device is SCell-type SCell may be stopped in response to the expiration of the MER.

[0224] When a wireless device receives a SCell start / stop MAC CE to activate SCell, The wireless device can activate SCell. In response to the activation of SCell, the wireless The device transmits SRS on SCell, and performs CQI / PMI / RI / to SCell. CRI report, PDCCH monitoring on SCell, PDCCH monitoring on SCell , and / or operations including sending a PUCCH on SCell. In response to the activation, the wireless device connects to the first SCell typography associated with the SCell. Start or restart a timer (e.g., sCellDeactivationTimer) The wireless device receives the SCell startup / shutdown MAC CE to start the SCell. This allows the first SCell timer in the slot to be started or restarted. One embodiment Then, in response to the activation of SCell, the wireless device will operate according to the stored configuration. , one or more suspended configurations of permission type 1 associated with SCell A completed uplink permission can be (re)initialized. In one embodiment, SCell In response to activation, the wireless device may trigger the PHR.

[0225] A wireless device stops the activated SCell via the SCell Start / Stop MAC CE. Upon receiving, the wireless device may stop the activated SCell. In one embodiment, The first SCell timer associated with the SCell (for example, sCellDe When the activationTimer expires, the wireless device will activate the SCell. It can be stopped. In response to the stopping of the activated SCell, the wireless device will stop The first SCell timer associated with the activated SCell can be stopped. In the embodiment, in response to the deactivation of the activated SCell, the wireless device activates One of the configured uplink permission types 2 associated with the IVized SCell This includes multiple configured downlink assignments and / or one or more configured uplink assignments. Link permission can be cleared. In one embodiment, in response to the stopping of an activated SCell. The wireless device is then configured to be associated with the activated SCell. One or more configured uplink permissions of link permission type 1 may be suspended, and / or flush the HARQ buffer associated with the activated SCell. It is possible.

[0226] When SCell stops, the wireless device will not transmit SRS over SCell. Report CQI / PMI / RI / CRI on SCell, UL-SC on SCell Sending in H, sending in RACH on SCell, at least on SCell Monitoring one first PDCCH, and at least one second PDCC of SCell This includes monitoring H and / or sending PUCCH on SCell. The operation may not be executed. At least one first PDCC on the launched SCell When H indicates uplink permission or downlink assignment, the wireless device is activated. The first SCell timer associated with the SCell (for example, sCellDeac The tivationTimer can be restarted. In one embodiment, the activated SCell Serving cells being scheduled (e.g., using PCell or PUCCH) At least one second on a SCell (i.e., a PUCCH SCell) that is constructed in this way. The PDCCH enables uplink permission or downlink assignment for the activated SCell. If this indicates that the wireless device is associated with the first SCell that was activated A timer (e.g., sCellDeactivationTimer) can be restarted. In one embodiment, when SCell is stopped, any ongoing random access operations on SCell are performed. If there is a sequence, the wireless device may abort an ongoing random access procedure on the SCell. ru.

[0227] Figure 21A shows an example of a one-octet SCell start / stop MAC CE. The first MAC has an LCID (for example, "111010" as shown in Figure 19) The PDU subheader identifies the one-octet SCell startup / shutdown MAC CE. It is possible. The size of the 1-octet SCell startup / shutdown MAC CE is constant. Obtain. A single-octet SCell start / stop MAC CE contains a single octet. This is also fine. A single octet consists of the C field of the first number (e.g., 7) and the R field of the second number. It can include a field (e.g., 1). Figure 21B shows a 4-octet SCell. An example of the start / stop MAC CE is shown. A second LCID (for example, as shown in Figure 19) is shown. The second MAC PDU subheader, which has "111001"), is a 4-octet S Cell activation / deactivation MAC CE can be identified. 4 octet SCell activation The size of the MAC CE can be constant. 4 octets of SCell startup / shutdown. MAC CE can contain four octets. Four octets is the third number C It can include a field (e.g., 31) and a fourth number R field (e.g., 1). Cut.

[0228] In Figure 21A and / or Figure 21B, SCe has SCell index i. If ll is constructed, C i The field is SCell, which has SCell index i. l may indicate the startup / shutdown status. In one embodiment, C i The field is set to 1. Then, a SCell having SCell index i can be activated. In one embodiment, C i When the field is set to zero, the SCell with SCell index i stops. It is possible. In one embodiment, a SCell configured using SCell index i is If not, the wireless device C i The field can be ignored. In Figures 21A and 21B. The R field may indicate a reserved bit. The R field can be set to zero.

[0229] When configured using CA, the base station and / or radio device will be able to use the radio device's network. To improve battery or power consumption, and / or SCell startup / additional delay. To improve this, a hibernation mechanism for SCell may be used. When Vice hibernates SCell, SCell may transition to a dormant state. In response to SCell transitioning to a sleep state, the wireless device transmits SRS on SCell. Transmission may be stopped, according to the periodicity configured for the dormant SCell. You may also report SCell's CQI / PMI / RI / PTI / CRI, and on SCell It is not necessary to send via UL-SCH, nor is it necessary to send via RACH on SCell, S It is not necessary to monitor PDCCH on the cell, and it is not necessary to monitor PDCCH on the SCell. Alternatively, and / or not, a PUCCH on the SCell may be omitted. In one embodiment, When SCell is in a dormant state, it reports the SCell's CSI and on SCell / Not monitoring PDCCH for SCell means that the base station will not be able to keep SCell constantly updated. It can provide a CSI that is always updated. When transitioning back to the previous state, the base station performs rapid / or accurate channel adaptation on SCell. Scheduling can be used, which speeds up the SCell startup procedure. In one embodiment, when SCell is in a dormant state, the SCell's CSI is reported. Not monitoring the PDCCH for SCell on SCell is not timely for the base station. and / or provides accurate channel information feedback while the battery of the wireless device It may improve the light or power consumption. In one embodiment, PCell / PSCell and / or Alternatively, the PUCCH secondary cell is either not configured or has entered a dormant state. There's a possibility it's not the case.

[0230] When configured using one or more SCells, gNB is configured using one or more SC It is possible to activate, hibernate, or deactivate at least one of the ells. In one embodiment, the gNB has at least one SCell in an active state, a dormant state, and One or more parameters that indicate the state or inactive state. The RRC message can be transmitted to a wireless device. In one embodiment, SCel When l is in the active state, the wireless device transmits SRS on SCell, SCell l CQI / PMI / RI / CRI reporting, PDCCH monitoring on SCell, SCell Perform PDCCH monitoring and / or PUCCH / SPUCCH transmission on SCell. It is possible.

[0231] When SCell is in an inactive state, the wireless device uses SRS on SCell. You don't have to send it, and you don't have to report SCell's CQI / PMI / RI / CRI. It is not necessary to send using UL-SCH on SCell; you can send using RACH on SCell. It is not necessary to do so, and it is not necessary to monitor the PDCCH on SCell, and the PDC on SCell CH does not need to be monitored, and / or PUCCH / SPUCCH on SCell Transmission is not required. When SCell is in a dormant state, wireless devices do not transmit on SCell. You don't need to send an SRS; just report the SCell's CQI / PMI / RI / CRI. Often, it's not necessary to send via UL-SCH on SCell, but rather via RACH on SCell. It is not necessary to transmit, and it is not necessary to monitor the PDCCH on the SCell, and the P DCCH does not need to be monitored, and / or PUCCH / SPUCC on SCell It is not necessary to send H. When configured with one or more SCells, gNB is , activate at least one of one or more SCells, hibernate, Or it can be stopped. In one embodiment, the gNB is at least one SCell One or more MACs containing parameters indicating startup, shutdown, or hibernation. Control elements can be transmitted to wireless devices.

[0232] In one embodiment, the gNB is a first that indicates the start or stop of at least one SCell. MAC CE (for example, startup / shutdown MAC C as shown in Figure 21A or Figure 21B) E) can be transmitted to a wireless device. In Figures 21A and / or 21B And, if a SCell having SCell index i is constructed, C i The field This may indicate the startup / shutdown status of the SCell having SCell index i. In this embodiment, C i When the field is set to 1, S has SCell index i. A cell may be activated. In one embodiment, C i When the field is set to zero, SCe An SCell having index i can be stopped. In one embodiment, the SCell index i If there is no SCell configured using dex i, the wireless device is C i field This can be ignored. In Figures 21A and 21B, the R field may represent reserved bits. In one embodiment, the R field may be set to zero.

[0233] In one embodiment, the gNB starts or hibernates at least one SCell. A second MAC CE (e.g., hibernation MAC CE) indicating this is used by the wireless device. It can be transmitted to. In one embodiment, the second MAC CE transmits to the first MAC CE. Associated with a second LCDID (e.g., startup / shutdown MAC CE) that is different from the first LCDID. It can be kicked. In one embodiment, the second MAC CE may have a certain size. In one embodiment, the second MAC CE may consist of a single octet containing 7 C fields and 1 R field. FIG. 22A shows an example of a second MAC CE having a single octet. In another embodiment, the second MAC CE may consist of 4 octets containing 31 C fields and 1 R field. FIG. 22B shows an example of a second MAC CE having 4 octets. In one embodiment, the second MAC CE having 4 octets may have a third LCID different from the second LCID of the second MAC CE having a single octet, and / or may be associated with the first LCID of the activation / deactivation MAC CE. In one embodiment, when there is no SCell with a serving cell index greater than 7, the second MAC CE of 1 octet may be applied; otherwise, the second MAC CE of 4 octets may be applied. In one embodiment, when the second MAC CE is received and the first MAC CE is not received, C may indicate the suspend / activation status of the SCell having the SCell index i if there is an SCell configured with the SCell index i; otherwise, the MAC entity may ignore the C field. In one embodiment, when C is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C is set to "0", the wireless device can activate the SCell associated with the SCell index i. In one embodiment, C is associated with the third LCID, and / or may be associated with the first LCID of the activation / deactivation MAC CE. In one embodiment, when there is no SCell with a serving cell index greater than 7, the second MAC CE of 1 octet may be applied; otherwise, the second MAC CE of 4 octets may be applied. In one embodiment, when the second MAC CE is received and the first MAC CE is not received, C may indicate the suspend / activation status of the SCell having the SCell index i if there is an SCell configured with the SCell index i; otherwise, the MAC entity may ignore the C field. In one embodiment, when C

[0234] is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C is set to "0", the wireless device can activate the SCell associated with the SCell index i. In one embodiment, C i `may indicate the suspend / activation status of the SCell having the SCell index i if there is an SCell configured with the SCell index i; otherwise, the MAC entity may ignore the C field. In one embodiment, when C is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C i is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C i is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state, the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C is set to "1", the wireless device can transition the SCell associated with the SCell index i to the suspended state. In one embodiment, when C i is set to "0", the wireless device can activate the SCell associated with the SCell index i. In one embodiment, when C [[ID=4\1]] is set to "0", the wireless device can activate the SCell associated with the SCell index i. In one embodiment, when C is set to "0", the wireless device can activate the SCell associated with the SCell index i. In one embodiment, when C iThis is set to "0", and SCell index i If a SCell having SCell index i is in a dormant state, the wireless device will... SCell having C can be launched. In one embodiment, C i It is set to "0", If a SCell with SCell index i is not in a dormant state, the wireless device will C i The field can be ignored.

[0235] In one embodiment, a first MAC CE (startup / shutdown MAC CE) and a second MAC If both CE (Hibernation MAC CE) are received, the two MAC CEs Two Cs i If the field is composed of SCells with SCell index i , it may indicate possible state transitions of a SCell having SCell index i, otherwise If so, the MAC entity is C i The field can be ignored in one embodiment. C CE of C i The field can be interpreted according to Figure 22C.

[0236] When configured using one or more SCells, gNB is configured using one or more SC It is possible to activate, hibernate, or deactivate at least one of the ells. In one embodiment, the MAC entity of the gNB and / or wireless device is configured SCells that are affected (if any, SCells composed of PUCCH / SPUCCH are excluded) (For example, sCellDeactivationTi) It is possible to maintain the mer and, upon its expiration, terminate the associated SCell.

[0237] In one embodiment, the MAC entities of the gNB and / or wireless device are configured SCell (excluding SCells composed of PUCCH / SPUCCH, if any) Each SCell hibernation timer (for example, sCellHibernation) nTimer) is maintained, and if SCell is in an active state, SCell hibernation When the timer expires, the associated SCell can be hibernated. In this embodiment, both the SCell stop timer and the SCell hibernation timer are used. When configured, the SCell hibernation timer is set to the SCell stop timer. This may also be prioritized. In one embodiment, the SCell stop timer and SCell hibernation timer If both the stun timers are configured, the gNB and / or wireless device will use SCe The SCell stop timer can be ignored regardless of the expiration of the ll stop timer.

[0238] In one embodiment, the MAC entities of the gNB and / or wireless device are configured SCell (excluding SCells composed of PUCCH / SPUCCH, if any) Each time, a dormant SCell stop timer (e.g., dormantSCellDeac Maintain the tivationTimer, and if SCell is in a hibernation state, the hibernation state When the SCell stop timer expires, the associated SCell can be stopped.

[0239] In one embodiment, the MAC entity of the wireless device is active during SCell configuration. When composed of a modified SCell, the MAC entity can invoke the SCell. This is possible. In one embodiment, the MAC entity of a wireless device starts SCell. When a MAC CE is received, the MAC entity can invoke SCell. In one embodiment, the MAC entity, in response to invoking SCell, The SCell stop timer associated with the Cell can be started or restarted. In one embodiment, the MAC entity, in response to invoking SCell, Start the SCell hibernation timer associated with ll (if configured). It can be restarted. In one embodiment, the MAC entity starts SCell In response to this action, the PHR procedure can be triggered.

[0240] In one embodiment, the MAC entity of a wireless device indicates that SCell is stopped. When MAC CE is received, the MAC entity can stop SCell. In one embodiment, in response to receiving a MAC CE, the MAC entity, Stopping SCell, stopping the SCell stop timer associated with SCell. This involves flushing all HARQ buffers associated with SCell. It is possible to perform a SCell. In one embodiment, it is associated with the activated SCell. The SCell stop timer has expired, and the SCell hibernation timer has been set. If not, the MAC entity will be associated with the SCell stop time. You can stop the marker and / or all HARQ associated with SCell. The buffer can be flushed.

[0241] In one embodiment, the first PDCCH on the activated SCell also grants uplink permission. This indicates a downlink assignment or scheduling of a started SCell. The second PDCCH on the serving cell also grants uplink permission to the activated SCell. Alternatively, indicate the downlink assignment, or the MAC PDU indicates the configured uplink. If transmitted with permission, or received via a configured downlink assignment, MAC The entity restarts the SCell stop timer associated with the SCell. If possible and / or configured, the SCell hiber associated with the SCell The nation timer can be restarted. In one embodiment, SCell is stopped. In this case, an ongoing random access procedure on SCell may be terminated.

[0242] In one embodiment, the MAC entity is an SC that is set to a dormant state during SCell configuration. If the SCell is associated with the ell state, or if the MAC entity is When a MAC CE is received indicating that SCell should be put into hibernation mode, MAC E The NTP is to put SCell into a dormant state, or to put one or more SCells into a dormant state. Sending CSI reports, SCell stop timers associated with SCell To stop, if configured, the SCell hibernation associated with the SCell Stopping the timer, stopping the dormant state of SCell associated with SCell Starting or restarting the Immer, and / or all associated with SCell It is possible to flush the HARQ buffer. In one embodiment, startup When the SCell hibernation timer associated with the SCell expires The MAC entity hibernates the SCell and is associated with the SCell. Stopping the SCell stop timer, and the SCell H Stopping the inversion timer and / or all associated SCell It is possible to flush the HARQ buffer. In one embodiment, When the pause timer associated with a paused SCell expires In addition, the MAC entity will stop SCell and / or have an issue with SCell. It is possible to stop the SCell stop timer that is connected to the idle state. In one embodiment, when SCell is in a dormant state, the ongoing random The access procedure may be terminated.

[0243] The base station (gNB) will enable bandwidth adaptation (BA) on the PCell. Using the link (UL) bandwidth portion (BWP) and downlink (DL) BWP, wireless data A Vice (UE) can be configured. When carrier aggregation is configured, gNB is S To enable BA on Cell, further configure UE using at least DL BWP It is possible (i.e., UL may not have UL BWP). PCell In addition, the initial active BWP may be the first BWP used for initial access. In the case of ell, the first active BWP is U when SCell is activated. E may be a second BWP configured to run on SCell. In a spectrum (e.g., FDD), gNB and / or UE are DL BWP and U L BWP can be switched individually. Unpaired spectra (for example, In TDD, gNB and / or UE simultaneously switch DL BWP and UL BWP. It cannot be replaced.

[0244] In one embodiment, the gNB and / or UE are DCI or BWP inactive timers. —This allows switching between BWPs that are configured. If the timer is configured for the serving cell, the gNB and / or UE will In response to the expiration of the BWP inactive timer associated with the active cell, You can switch the BWP to the default BWP. The default BWP is the network BWP. It can be configured by a . In one embodiment, in the case of an FDD system, it is configured by BA. If so, one UL BWP and one DL for each uplink carrier. BWP can be active simultaneously in active serving cells. One example In the case of a TDD system, one DL / UL BWP pair is the active service It is possible for both Gsells to be active simultaneously. One UL BWP and one DL BWP ( Operating with a single DL / UL pair may improve UE battery consumption. BWPs other than the one active UL BWP and one active DL BWP on which E can operate are: It can be stopped. In a stopped BWP, the UE does not need to monitor the PDCCH, and You do not have to send it via PUCCH, PRACH, and UL-SCH.

[0245] In one embodiment, the serving cell consists of up to one number (e.g., four) BWPs. In one embodiment, for an activated serving cell, one at any given time An active BWP may exist. In one embodiment, BWP switching for a serving cell. This allows you to activate an inactive BWP and deactivate an active BWP at the same time. This is possible. In one embodiment, BWP switching is performed by downlink assignment or uplink It can be controlled by a PDCCH indicating permission. In one embodiment, BWP switching is BW P is an inactive timer (e.g., bwp-InactivityTimer) It can be controlled. In one embodiment, BWP switching is performed in response to the initiation of a random access procedure. And it can be controlled by MAC entities. Adding SpCells or SCells If PDCCH indicating downlink assignment or uplink permission is not received during startup One BWP may be the first to become active. Active BWP of the serving cell P can be represented by RRC and / or PDCCH. In one embodiment, the paired For spectra that are not yet available, DL BWP can be paired with UL BWP, and B WP switching can be common to both UL and DL.

[0246] Figure 23 shows an example of BWP switching on SCell. In one embodiment, the UE is SCe The parameters of ll and one or more BWP configurations associated with SCell, It can receive RRC messages, including RRC connection reconfiguration. Messages (e.g., RRCReconfiguration), RRC connection re-establishment messages Sage (e.g., RRCRestablishment), and / or RRC connection service It can include a setup message (e.g., RRCSetup). One or more Of the number of BWPs, at least one BWP is the first active BWP (for example, Figure 2) As BWP1 of 3, one BWP is the default BWP (for example, BWP0 in Figure 23). ) can be configured as follows. The UE receives MAC CE and sends SCe in the nth slot. ll can be started. UE is the SCell stop timer (e.g., sCellD The eactivationTimer) is activated, and CSI-related actions regarding SCell are performed. Start the process and / or CSI relationship for SCell's first active BWP A series of actions may be initiated. In response to the activation of SCell, the UE will on BWP1. You can start monitoring the PDCCH.

[0247] In one embodiment, the UE responds to receiving a DCI indicating a DL assignment on BWP1. Then, in the m-th slot, the BWP inactive timer (for example, bwp-Inacti The `vityTimer` can be started and restarted. The UE is in the sth slot, B When the WP deactivation timer expires, the default BWP (for example, It may switch back to BWP0). UE is sCellDeactivationTim If er expires, stop SCell and / or BWP inactive timer - can be stopped.

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

[0249] In one embodiment, the deactivation of each activated serving cell composed of BWP On BWP, MAC entities do not need to send via RACH, and can monitor PDCCH. It is not necessary to view, it is not necessary to send PUCCH, it is not necessary to send SRS, D L-SCH does not need to be received, and any configured downlink of type 2 permission is configured. You may clear the assigned and configured uplink permissions, and / or configure Any configured uplink permission of type 1 may be suspended.

[0250] In one embodiment, the MAC entity is used for BWP switching of the serving cell by the PDC When CH is received, the random access procedure associated with this serving cell proceeds. While not in operation, the UE performs a BWP switch to the BWP indicated by the PDCCH. Obtain. In one embodiment, the bandwidth partial indicator field is DCI format 1_1 When configured, the bandwidth portion indicator field value is configured for DL ​​reception. In one embodiment, the active DL BWP from the DL BWP set can be shown. If the bandwidth portion indicator field is configured in DCI format 0_1, then the bandwidth The bandwidth portion indicator field value is either the configured UL BWP set for UL transmission or This allows us to demonstrate their active UL BWP.

[0251] In one embodiment, for the primary cell, the UE is the upper layer parameter Default t-DL-BWP enables the default DL BWP within the DL BWP configured in the UE. P may be provided in one embodiment. Therefore, if a default DL BWP is not provided to UE, the default DL BWP is , which may be the initial active DL BWP. In one embodiment, the UE is the primary cell The timer value is determined by the higher-level parameter bwp-InactivityTimer. It may be provided as follows. If configured, the UE will run at 1 millisecond for frequency range 1. The timer is incremented every second, or every 0.5 milliseconds for frequency range 2. This allows the UE to perform DCI formatting for paired spectral operations. If 1_1 cannot be detected, or if UE is not paired during the interval, For spectral operation, use DCI format 1_1 or DCI format 0_1. This is a case where detection is not possible.

[0252] In one embodiment, the UE indicates the default DL BWP among the configured DL BWPs. Configured for secondary cells using the upper-level parameter Default-DL-BWP Furthermore, the UE is a higher-level parameter bwp-InactivityT that indicates the timer value. When configured using imer, the UE procedure on the secondary cell is as follows: The plan uses timer values ​​for the main cell and default DL BWP for the secondary cell. It can be the same as the one on the imari cell.

[0253] In one embodiment, the UE places a first active DL on a secondary cell or carrier. The higher-level parameter Active-BWP-DL-SCell, which is BWP, and the first active UL BWP is the upper layer parameter Active-BWP- When configured by UL-SCell, the UE is the indicated DL on the secondary cell. BWP and indicated UL BWP on secondary cells or on carriers Used as the first active DL BWP and the first active UL BWP, respectively. It is possible.

[0254] In one embodiment, a set of PDCCH candidates for the wireless device to be monitored is PDCCH Defined in terms of search space sets. A search space set is a CSS set or a USS set. Includes a set. Wireless devices are PDCCH in one or more of the following search space sets. Monitor the candidates. Scrambled by SI-RNTI in the MCG's primary cell. For DCI format with a CRC, pdcch-Confi in MIB By gSIB1, or searchS in PDCCH-ConfigCommon By paceSIB1, or by sea within PDCCH-ConfigCommon Type0-PDCCHCSS set configured by rchSpaceZero, M The primary cell of the CG has a CRC scrambled by SI-RNTI, Search for DCI format within PDCCH-ConfigCommon Typ configured by hSpaceOtherSystemInformation e0A-PDCCHCSS set, RA-RNTI or TC-RN in the primary cell PD for DCI format with CRC scrambled by TI It is configured by ra-SearchSpace within CCH-ConfigCommon. The Type1-PDCCHCSS set, with P-RNTI in the primary cell of the 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 in the case of primary cells, C-RNTI, MCS-C-RNTI, or DCI format with CRC scrambled by CS-RNTI , searchSpaceType=common in PDCCH-Config A Type3-PDCCHCSS set configured by earchSpace, and C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, or CS-RNTI search for DCI format with scrambled CRC hSpaceType=ue-Specific in PDCCH-Config USS set configured by archSpace.

[0255] In one embodiment, the wireless device monitors the PDCCH periodicity within the slot, and monitors the PDCCH periodicity. Offset and one or more PDCCH configuration parameters including PDCCH monitoring patterns Based on the meter, determine PDCCH monitoring opportunities on active DL BWP. Regarding the SSs (Sector Space Sets), wireless devices have PDCCH monitoring opportunities.

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[0256] In the embodiment, the wireless device is connected to a set of search spaces s associated with CORESETp. In contrast,

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[0257] In one example, DRX operation is used by UE to improve the battery life of the UE. If DRX is configured, the UE can use a downlink control channel, for example, PDC. CH or EPDCCH can be monitored intermittently. The base station can, for example, use RRC configuration. Using this, you can configure DRX operation using a set of DRX parameters. To enable wireless devices to reduce power and resource consumption, DRX parameters The set of components can be selected based on the application type. In response to being activated, the UE will use DRX3 upon data arrival at the UE. It may be in a power / off state, and the base station may wait until the UE transitions to the DRX ON state. Therefore, data packets with extended delays may be received.

[0258] In one embodiment, if no packets are received during DRX mode, the UE will... Most of the power can be turned off. The UE intermittently monitors the PDCCH in DRX mode. It can be viewed. If DRX operation is not configured, the UE continuously monitors the PDCCH. It can be seen. During this time, the UE is in a downlink state called DRX active state. Listen to (or monitor PDCCH) the DL. In DRX mode, the UE is the PD The period during which the CCH is not being listened to or monitored is called the DRX sleep state.

[0259] Figure 24 shows one embodiment. gNB is one or more DRX cycles It is possible to send an RRC message containing DRX parameters. The parameter may include the first parameter and / or the second parameter. One parameter is the first time value of the DRX active state in the DRX cycle (for example, This may indicate the DRX on duration. The second parameter is the DRX cycle duration. This may indicate a second time in the loop state (e.g., DRX off duration). The meter may further include the duration of the DRX cycle. During the DRX active state. The UE uses PDCCH to detect one or more DCIs on the serving cell. It can be monitored. While the DRX is in sleep mode, the UE will monitor the PDCC on the serving cell. You can stop monitoring H. If multiple cells are active, U E is all PDC on (or for multiple cells) of multiple cells while DRX is active. CH can be monitored. During the DRX off duration, the UE can monitor multiple cells (or It is possible to stop monitoring all PDCCHs (for multiple cells). The UE can The DRX operation can 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 will frequently perform periodic CSI and / or SRS. It may be sending (for example, based on the configuration). If DRX is used, DRX is turned off. During the duration, the UE may not transmit periodic CSI and / or SRS. Local authorities can allocate these resources to other UEs to improve resource utilization efficiency. can.

[0261] In one embodiment, the MAC entity is a UE of multiple RNTIs of the MAC entity It has a DRX function that controls downlink control channel (e.g., PDCCH) monitoring activity. It can be composed of RRCs. Multiple RNTIs are C-RNTI, CS-RNTI, I 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 It may include at least one of S-TPC-RNTI. If DRX is configured in response to being NNECTED, the MAC entity The PDCCH can be intermittently monitored using DRX operation; otherwise, MAC Ent. The system can continuously monitor PDCCH.

[0262] In one embodiment, the RRC controls the DRX operation by configuring multiple timers. It is possible to have multiple timers, such as a DRX-ON duration timer (e.g., drx-o nDurationTimer), DRX inactive timer (e.g., drx-In activityTimer), Downlink DRX HARQ RTT timer (for example) (DRX-HARQ-RTT-TimerDL), Uplink DRX HARQ R TT timer (e.g., drx-HARQ-RTT-TimerUL), downlink re Transmit timer (e.g., drx-RetransmissionTimerDL), up Plink retransmission timer (e.g., drx-RetransmissionTimerU) L), one or more parameters of the short DRX configuration (e.g., drx-Shor tCycle and / or drx-ShortCycleTimer), and Ron One or more parameters of the DRX configuration (e.g., drx-LongCycle) This may include: In one embodiment, the time granularity of the DRX timer is PDCCH subframe Regarding the time (for example, shown as psf in a DRX configuration), or in milliseconds It is possible.

[0263] In one embodiment, in response to the configuration of the DRX cycle, the active time is less This may include the time while at least one timer is running. drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerDL, drx-Retransmis sionTimerUL, or mac-ContentionResolutionT It may include imer.

[0264] In one embodiment, drx-Inactivity-Timer sends a new transmission (UL or After successfully decoding the PDCCH (which indicates DL or SL), the UE may be active. You can specify the duration. This timer is set for new transmissions (UL, DL, or It can be restarted when it receives PDCCH from SL). The UE responds to the expiration of this timer by It is possible to switch to DRX mode (for example, short DRX cycle or long DRX cycle) (Using a cycle). In one embodiment, drx-ShortCycle is used by UE to DRX The first type of DRX cycle that must be followed when entering the code (for example, when configured (This may be the case.) In one embodiment, DRX-ConfigIE exhibits a short cycle length. drx-ShortCycleTimer is a multiple of shortDRX-Cycle and It can be represented as follows: The timer enters a short DRX cycle before entering a long DRX cycle. This can indicate the number of initial DRX cycles according to drx-onDurationTimer. The duration at the start of the DRX cycle (e.g., DRX ON) can be specified. onDurationTimer is the duration before entering sleep mode (DRX OFF). It can indicate time. drx-HARQ-RTT-TimerDL indicates when a new transmission is received. This allows specifying the minimum time before the UE can expect the same packet to be retransmitted. The imer may be fixed and may not be composed of RRC. drx-Retra nsmissionTimerDL anticipates that retransmission from eNodeB will occur by the UE. If so, this may indicate the maximum period for which the UE can monitor the PDCCH.

[0265] In response to the configuration of the DRX cycle, the active time is scheduled. This may include the time while the request is sent on PUCCH and is pending. In one embodiment, DRX In response to the cycle being established, the active time is for pending HARQ retransmissions. Uplink permission may be required, and the corresponding HARQ batch for the synchronized HARQ process may be needed. This may include the time while data is present in the 'fa'. In response to the formation of the DRX cycle, Active time is for new transmissions addressed to MAC entity C-RNTI. PDCCH indicates a run of preambles that have not been selected by the MAC entity. This may include the time between the successful reception of a dam access response and the time between such a response not being received.

[0266] The DL HARQ RTT timer can expire in subframes, and is compatible with the HARQ Pro. The data from the cess cannot be decrypted properly. The MAC entity is the corresponding HARQ program. The drx-RetransmissionTimerDL can be started by Rothes. UL H The ARQ RTT timer can expire in a subframe. The MAC entity corresponds to The drx-RetransmissionTimerUL of the HARQ process can be started. A DRX command MAC control element or a long DRX command MAC control element is received. It is possible. The MAC entity stops drx-onDurationTimer and d rx-InactivityTimer can be stopped. In one example, drx-Inac The tivityTimer may expire, or the DRX command MAC control element may be It can be received in a frame. In one embodiment, a short DRX cycle is configured. In response, the MAC entity starts drx-ShortCycleTimer as It can be restarted and a short DRX cycle can be used. Otherwise, MAC entity Tee can use a long DRX cycle.

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

[0268] In one embodiment, a short DRX cycle was used, [(SFN*10) + subframe [Mu number] Modulo(drx-ShortCycle)=(drxStartOffset )In the case of modular (drx-ShortCycle), the wireless device is drx-onD The urationTimer can be started. In one embodiment, a long DRX cycle is used. [(SFN*10)+subframe number]modulo(drx-longCycle) If =drxStartOffset, the wireless device will use drx-onDuration. It is possible to start nTimer.

[0269] Figure 25 shows an example of DRX operation. The base station includes R, which contains the configuration parameters for DRX operation. RC messages can be sent. The base station can send downlink messages via PDCCH. DCI for source assignment can be sent to the UE. The UE will then send drx-Ina The ctivityTimer can be started, during which time the UE monitors the PDCCH. This is possible. When drx-InactivityTimer is executed, the sending block After receiving the TB, the UE sets the HARQ RTT timer (e.g., drx-HA The RQ-RTT-TimerDL can be started, and during that time the UE can use PDCCH Monitoring can be stopped. If the UE fails to receive TB, NA CK can be sent to the base station. When the HARQ RTT timer expires, UE It monitors the PDCCH and the HARQ retransmission timer (e.g., drx-Retransm). The issionTimerDL can be started. The HARQ retransmission timer is executed. If so, the UE will receive a second DCI indicating DL permission for TB retransmission. This is possible. If the second DCI is not received before the HARQ retransmission timer expires, UE It is possible to stop monitoring PDCCH.

[0270] Figure 26A shows an example of a power saving mechanism based on wake-up. gNB is a way Parameters of the quap-up period (e.g., power saving period, or power saving channel (PSCH) opportunity) One or more messages, including a wake-up call, can be sent to the UE. The duration of the DRX cycle is several slots before the DRX-on duration (or Can be placed in the symbol. The number of slots (or symbols), or wake The gap between the up duration and the DRX on duration is called one or more It can consist of a number of RRC messages or be predefined as a fixed value. (Gap) This involves synchronization with the gNB, measuring the reference signal, and / or readjusting the RF parameters. It can be used for at least one of the following: The gap is UE and / Alternatively, it may be determined based on the gNB's capabilities. In one embodiment, the wake-up duration The parameters can be predefined without RRC configuration. In one embodiment, the wake-up parameter Canism can be based on wake-up indication via PSCH. The parameters for the duration are PSCH channel formats (e.g., Numerical, DCI). Format (PDCCH format), PSCH periodicity, control resource set and May include at least one of the search spaces of bi / or PSCH. Wake-up duration If the parameter is time, the UE will wake up during the wake-up duration. It can monitor the UP signal or PSCH. The parameters of the PSCH are configured. In this case, the UE monitors the PSCH to detect a wake-up indicator during the PSCH opportunity. Visible. Wake-up signal / channel (or wake-up indicator via PSCH) In response to receiving the signal, the UE wakes up to monitor the PDCCH according to the DRX configuration. It can be turned on. In one embodiment, a wake-up indicator is received via PSCH. In response to this, the UE sets the DRX active time (e.g., drx-onDurasi PDCCH can be monitored when onTimer is running. If PDCCH is not received during active time, the UE may return to sleep mode. The UE can remain in a sleep state during the DRX off duration of the DRX cycle. In one embodiment, the UE wakes up during the wake-up period (or PSCH opportunity) If no signal / channel (or wake-up indication via PSCH) is received, U E may skip monitoring the PDCCH during DRX active time.

[0271] In one embodiment, the power saving mechanism is based on a go-to sleep indicator via the PSCH. It may be present. Figure 26B shows an example of power saving based on go-to sleep display. PSCH In response to receiving a go-to sleep indicator via, the UE returns to sleep. During the DRX active time (for example, the next DRX on duration in a DRX cycle) CH monitoring can be skipped. In one embodiment, during the wake-up time, If no go-to sleep indicator is received via PSCH, the UE configures the DRX operation. The PDCCH is monitored during the DRX active time according to the meter. This may reduce the power consumption of PDCCH monitoring during DRX active time.

[0272] For example, the power saving mechanism is achieved by combining Figures 26A and 26B. It can be implemented. The base station will ensure that the wireless device is on for the next DRX-ON duration. The DCI indicates whether to quench or skip the next DRX-on duration. Power indication can be transmitted via PSCH. Wireless devices receive DCI via PSCH. It is reliable. The wireless device will indicate that it will wake up for the next DRX-on duration. In response to the power saving indicator, the wireless device will wake up during the next DRX on duration. It is possible. The wireless device will respond to the wake-up and activate the PDC during the next DRX-on duration. Monitor the CH. If the wireless device skips (or skips) during the next DRX-ON duration, In response to a power saving indicator showing that it will leap, the wireless device will remain DRX on for the next duration. Sleep or skip in between. The wireless device will wait until the next DRX is on. In response to a power saving indicator showing that the system will enter sleep mode for a specified duration, the next DRX-on duration... This skips monitoring the PDCCH.

[0273] Figure 27 shows an exemplary embodiment of the power saving mechanism. The base station (e.g., gNB) The wireless device (e.g., UE) has a first configuration parameter for the power saving channel (PSCH). One or more RRCs including a second configuration parameter for the turn and power saving (PS) operation. A message can be sent. The first configuration parameter of PSCH is one or more first Search space (SS) and / or UE monitor one or more primary systems Your resource set (COREST), one or more first systems that the UE monitors the PSCH DCI format, dedicated radio network temporary identifier (R) for monitoring PSCH NTI) (For example, existing RNs of 3GPP (registered trademark) configured for wireless devices) It may include at least one of the PS-RNTI values ​​which is different from the TI value. The second configuration parameter is one or more parameters that the UE monitors in PS operation for PDCCH. Two SS and / or one or more second COREST, UE in PS operation PDC One or more first DCI formats that monitor the CH, UE in PS operation, The first maximum number of antennas that serve as the basis for performing MIMO processing (transmit or receive). One or more MIMO parameters that indicate (layer, port, TRP, panel, etc.) - When UE is running PS, is cross-slot scheduling set? One or more first cross slot scheduling indicators that show U E is the BWP index, which indicates the location where data packets are sent or received during PS operation. Cell-in, which indicates where the UE sends or receives data packets in PS operation. It may include at least one of the DEXs. One or more RRC messages are transmitted It may further include a third configuration parameter for normal functional operation (e.g., full functionality, non-PS, etc.). The third configuration parameter is one or more parameters that the UE monitors the PDCCH in non-PS operation. A number of third SS and / or one or more third COREST, UE are non-PS operations. If PDCCH is monitored by one or more second DCI formats, the UE is not PS operation. Then, the second largest number of amperes, which serves as the criterion for performing MIMO processing (send or receive), One or more MIMO parameters that indicate a tenter (layer, port, TRP, panel, etc.) Cross-slot scheduling is configured when the UE is in non-PS operation. One or more second cross-slot scheduling indicators that show whether or not , and / or may include at least one of the same. UE is cross slot Based on the configuration of the scheduling, cross-slot scheduling is used for power saving. After receiving a DCI indicating the jury, and receiving data packets based on the DCI. Before doing so, switch off some receiver modules (e.g., data buffering, R F chain, channel tracking etc. can be performed. In one embodiment, one or more second SS and / or one or more second CORESTs, for example, for the purpose of saving power, Smaller than one or more third SS and / or one or more third COREST It may occupy small wireless resources. The first maximum number is, for example, for the purpose of saving power, the second It can be smaller than the maximum number.

[0274] As shown in Figure 27, when the parameters of PSCH and PS operation are configured, UE DC with CRC scrambled by PS-RNTI during PSCH monitoring opportunity To detect I, one can monitor the PSCH (e.g., on the first SS / CORESET). Based on PSCH monitoring, the UE receives the PS included in the DCI via PSCH. The display may be detected. DCI may also indicate active BWP switching. PSC In response to receiving a PS indication via H, the UE performs one or more PS operations. Based on two configuration parameters, the execution of PS operation can be initiated. Performing PS operation based on the configuration parameters is a second PDCCH opportunity and second Monitor PDCCH in SS / CORESET, in the first SS / CORESET To refrain from monitoring PSCH, the third PDCCH opportunity and the third SS / CORESE Avoid monitoring PDCCH at T, first maximum number of antennas (layer, port, TR) Sending and receiving data packets on a P, panel, etc., and / or one or more Cross slot scheduling based on the first cross slot scheduling indicator Using a ring to send or receive data packets, at least one of these This may include: Performing a PS operation involves the active BWP of one or more cells (for example, The PCell / SCell (or cell base) is divided into one or more dormant BWPs. It may also include replacing. If DRX operation is not set, the UE will PDCCH opportunities, and PDCCH can be continuously monitored with a second SS / CORESET. The UE determines the active time of the DRX (for example, the next DRX) when the DRX operation is configured. During the ON duration, the second PDCCH opportunity and the second SS / CORESET PDC CH can be monitored intermittently. UE will use the PDCCH monitoring as a basis for the second PDCCH opportunity. In response to receiving a DCI indicating uplink permission or downlink assignment, data It can send and receive packets or TBs.

[0275] In one embodiment, in response to receiving a PS display via PSCH, the UE receives SCe Based on the PS display indicating the state transition of ll, SCell is changed from active to dormant. It can be migrated. SCell hibernation is when the wireless device is on / for SCell. Stop monitoring DCCH(s), stop receiving PDSCH on SCell, S Uplink signals on the cell (PUSCH, PUCCH, PRACH, DRMS, and Stop sending (and / or PRACH) and / or SCell's CSI The port can transmit during a period of time. Wireless devices are closed during SCell's holiday. SCel until it receives a second indicator that shows the transition from the stopped state to the active state. l can maintain a resting state.

[0276] As shown in Figure 27, when configured with PSCH and PS operation parameters, UE This allows monitoring of the PSCH during a PSCH monitoring opportunity (e.g., the first SS / CORESET (Above). The UE, for example, the base station, decides whether the UE will remain in full-function mode or non-PS mode. If this is the case, it is not necessary to detect the PS display via PSCH. In response to not receiving an indication, the UE will use one or more third configuration parameters Subsequently, it can start operating in full-function mode. In one embodiment, the base station is fully functional when the wireless device The wireless device may transmit a PS indicator indicating whether it should remain in functional mode. The PS indicator can be received via H. The PS indicator indicates that the radio remains in full-function mode. In response to this, the wireless device, based on one or more third configuration parameters, It may start operating in full-function mode.

[0277] In one example, operation in full-function mode is based on one or more third configuration parameters. To execute, the third PDCCH opportunity and the third PDCCH in SS / CORESET To monitor, refrain from monitoring PSCH in the first SS / CORESET, the second P Avoid DCCH opportunities and monitoring of PDCCH in the second SS / CORESET, Data packets are transmitted using the maximum number of antennas (layers, ports, TRPs, panels, etc.) of 2. Receiving, one or more indicating that the same slot scheduling is set. The same slot schedule based on the second cross slot scheduling indicator of the number This may include at least one of sending or receiving data packets in a cruising environment. The UE, if DRX operation is not set, will perform a third PDCCH operation, and the third The SS / CORESET can continuously monitor the PDCCH. The UE is configured to perform DRX operation. When this occurs, during the DRX's active time, during the third PDCCH opportunity, and during the third SS / CORESET can intermittently monitor PDCCH. UE can then perform PDCCH on the third PDCCH opportunity. DCI indicates uplink permission or downlink assignment based on DCCH monitoring. In response to the reception of a signal, data packets or TBs may be sent and received.

[0278] Figure 28 shows an example of the cell's downlink beam fault recovery (BFR) procedure. In one example, The wireless device receives one or more messages from the base station at time T0. It is possible. One or more messages can be one or more configurations for multiple cells. It may include a meter. Multiple cells are the first cell (e.g., PCell, PSCell). , PUCCH SCell, SCell) and one or more secondary cells That's fine. One or more secondary cells are second cells (for example, PUCCH It may include the constituent SCells (SCells). One or more RRC messages The message is one or more RRC messages (for example, an RRC connection reconfiguration message, and This includes RRC connection re-establishment messages or RRC connection setup messages. This is possible. One or more configuration parameters can be used to determine cell-specific indices for multiple cells. (For example, provided by the upper-level parameter servCellIndex) This can be shown. In one embodiment, each cell of a plurality of cells is a cell-specific index It can be identified by a single cell-specific index.

[0279] In one embodiment, one or more configuration parameters are BWP configurations for multiple BWPs. It may include parameters. Multiple BWPs are the first multiple DL BWPs of a cell and It may include the first multiple UL BWPs of a and / or cell. One or more constituent parameters The meter may further include BWP-specific indices for multiple BWPs. For example, Each of the multiple BWPs is a BWP-specific index for each BWP. It can be identified by an index (for example, one or more configuration parameters) (Provided by the higher-level parameter bwp-ID).

[0280] In the example, one or more configuration parameters are used to control the downlink BWP of the second cell. (For example, an explicit BFD configuration) one or more first RSs (for example, IE RadioLinkMonitoringConfig provides RadioLin kMonitoringRS) may be shown. At least one of the first RSs Each RS is transmitted / configured on / within the first cell and / or on / within the second cell. The second cell and the first cell are within the band and / or QCL-ed (for example). Based on the operation in cross-carrier QCL and / or similar channel characteristics (e.g., For example, based on the sharing of Doppler diffusion, spatial filters, etc., at least one RS They may share one or more configuration parameters. FI) Counter (e.g., beamFailureInstanceMaxCount) ) may indicate. The wireless device evaluates one or more first RSs and the second cell Beam faults for downlink BWP can be detected. One or more configuration parameters - may indicate the first threshold (for example, rlmInSyncOutOfSyncThre (Provided by shold, Qout, LR). One or more configuration parameters This is one or more second RSs (e.g., IE BeamFailureRecover The candidate BeamRSList provided to ryConfig may indicate the wireless device. Evaluate one or more second RSs and determine the BFR of the downlink BWP of the second cell. Candidate RSs can be selected from one or more second RSs for the order. The second RS is one or more second CSI-RSs, and / or one or more. It may include a second SS / PBCH block.

[0281] In one embodiment, one or more configuration parameters are a second threshold for the BFR procedure. (For example, rsrp-T in IE BeamFailureRecoveryConfig) (Provided by hresholdSSB) may indicate the wireless device, second cell A second threshold may be used in the selection of candidate beams. One or more configuration parameters This applies to the BFR of the second cell (or downlink BWP), using a BFR timer (for example) However, IE BeamFailureRecoveryConfig's beamFailu This may indicate the information provided by reRecoveryTimer.

[0282] For example, one or more configuration parameters may indicate a set of search spaces (e.g., , IE BeamFailureRecoveryConfig recoverySe (Provided by archSpaceID). The search space set is linked to CORESET. Link / associated may be used. The search space set may indicate CORESET. Wireless device Isu used CORESET for the BFR procedure of the second cell (or downlink BWP). The base station can monitor the second. The base station can configure a CORESET on the first cell. The base station can monitor the second A CORESET can be configured on the cell. The wireless device is BFR of the downlink BWP. Regarding the procedure, it is possible to monitor the search space set (for example, linked to CORESET). The downlink BWP can be the active downlink BWP of the second cell. The device's physical layer consists of one or more layers (for detecting beam faults in the downlink BWP). The first radio link quality of the first RS can be evaluated. The physical layer evaluates the first radio link quality. Worse than the first threshold (e.g., higher BLER, lower L1-RSRP, lower L1-S) During INR (Input-Return), a BFI (Band-Inspection) display may be provided to the higher layer of the wireless device (e.g., MAC).

[0283] In one embodiment, the upper layer of the wireless device (e.g., MAC) provides a BFI display. In response to the logic layer, the BFI_counter may be incremented by one. This may be a counter in the BFI display. The wireless device first sets BFI_PARE. It can be set to B. Based on the increment of BFI_PARE, BFI_PARE is the maximum BFI Equivalent to a counter (e.g., beamFailureInstanceMaxCount) It may be or more. Wireless devices have a maximum BFI_COUNTER of B The second cell is down based on whether it is equal to or greater than the FI counter. Link BWP beam faults can be detected. Wireless devices can detect beam faults in the downlink BWP. Based on the detection of the fault, a BFR procedure may be initiated for the downlink BWP of the second cell. Based on the initiation of the BFR procedure, the radio device may activate the BFR timer.

[0284] In one embodiment, based on the initiation of the BFR procedure, the wireless device responds to the BFR procedure. Auxiliary beam selection can be initiated. Candidate beam selection involves one or more second RS (second threshold) Candidate RSs in / between them (e.g., CSI-RS, which have higher quality than the value) This may include selecting / identifying the SS / PBCH block. The start of candidate beam selection is: From the physical layer to the upper layers, one or more candidates for one or more second RSs RS, and / or one or more candidate measurements of one or more candidate RSs (e.g., One or more (RS-specific indices) associated with the L1-RSRP measurement. This may include requesting an index. The physical layer of a wireless device may include one or more second layers. One or more measurements (e.g., L1-RSRP measurement) may be performed on the RS. A wireless device is one or more of the one or more measurements of one or more candidate RS. If the candidate measurement is better than the second threshold (e.g., rsrp-ThresholdSSB) (For example, lower BLER or higher L1-RSRP or higher SI) It can be determined to be NR). Based on the requirements, the physical layer is determined by the upper layers from the physical layer, and the physical layer is determined to be the first R The first measurement of S and the first RS-specific index, as well as the second measurement of the second RS. It may provide a value and a second RS-specific index.

[0285] In one embodiment, one or more configuration parameters are defined as the uplink physical channel (e.g., For example, it could indicate PUCCH, PRACH, PUSCH. The uplink physical channel is Physical Random Access Channel (PRACH) resources, physical uplink control channels PUCCH resources and / or physical uplink shared channels (PUCCH ) May include resources.

[0286] In the example, the wireless device, at time T2 in Figure 28, is based on the initiation of the BFR procedure in the second cell. At least one uplink physical channel of the uplink physical channel (for example, P Uplink signal (e.g., PR) via RACH, PUCCH, or PUSCH Preamble via ACH, Beam Fault Recovery Request (BFRQ) transmission via PUCCH , scheduling requests (SR) via PUCCH, MAC-CE via PUCCH It can transmit non-periodic CSI-RS via PUSCH.

[0287] In one embodiment, a wireless device may receive a DCI from a base station at time T3 in Figure 28. DCI is for uplink / downlink allocation / uplink authorization. It can show frequency / time resources. DCI is a CSI report (e.g., non-frequency). DCI can trigger a CSI report. The I request field may be included.

[0288] In one embodiment, the wireless device is shown by DCI at time T4. The second uplink signal (e.g., PUSCH, transport block) is transmitted via the second uplink signal (e.g., PUSCH, transport block). They may send non-periodic CSI reports, UCI, PUCCH, MAC-CE, etc. The second uplink signal is MAC-CE (e.g., BFR MAC-CE, PHR MAC-CE). This could be C-CE, BSR, etc. The second uplink signal could be a layer 1 report. In one embodiment, the second uplink signal is a CSI report (e.g., a periodic CSI). (Report I) This could be the case. The second uplink signal is the second cell-specific input of the second cell. It can include / show a dx.

[0289] In the example, the wireless device is a candidate RS-specific index for the BFR procedure. Select candidate RSs (one or more second RSs) to associate with / identify using the index. / Can be identified. Based on selecting / identifying candidate RS, the second uplink signal is, The candidate RS index may be shown.

[0290] In one embodiment, the wireless device performs a BFR procedure for SCell at time T2. It is possible to skip the transmission of Q and the reception of DCI at time T3. The IS transmits a second uplink signal indicating the candidate RS index / cell index. When there is available uplink permission to do so, skip sending BFRQ and DC The reception of I can be skipped. The radio device responds to the start of the BFR procedure, A second access is possible via an available uplink authorization (e.g., dynamic authorization or configured authorization). It may transmit uplink signals (e.g., MAC CE).

[0291] In one embodiment, when performing a BFR procedure on a SCell as shown in Figure 28, Linear devices are selected from multiple candidate RSs (or candidate devices identified by the candidate RSs). It does not identify the second threshold (e.g., rsrp-ThresholdSSB) Having low BLER or higher L1-RSRP or higher SINR. Existing technique In the procedure, a signal (e.g., MAC CE) is transmitted to indicate that the candidate RS has not been identified. In response, the wireless device may stop the SCell. In existing technology, a candidate RS is identified. In response to the transmission of a signal indicating that it is not connected (e.g., MAC CE), the wireless device This allows for continuous monitoring of the SCell's PDCCH and the maintenance of the SCell's active state. If the auxiliary beam is not identified, stopping the SCell will cause a delay in the SCell restart. This may occur. In one embodiment, the base station has SCell between the base station and the wireless device. After the upper beam pair link is restored, it may be possible to send a MAC CE indicating SCell activation. MAC CE delivery is scheduled from the base station to DCI To transmit, to transmit MAC CE from base station based on DCI, wireless device Receiving DCI via a wireless device, receiving MAC CE via a wireless device, To receive MAC CE via a wireless device, send HARQ-ACK, H If the ARQ-ACK indicates the MAC CE's NACK, the base station will assign the MAC CE to M This may include retransmitting the AC CE if the candidate beam is not identified. By keeping l in an active state, the wireless device, for example, on SCell To increase power consumption for PDCCH monitoring and uplink transmission on SCell. This is possible. It allows monitoring of PDCCH on SCell, or uplink transmissions on SCell. This means that if the BFR procedure is initiated and no candidate beam is identified, it will not succeed, and other radio signals will be transmitted. This can increase uplink interference to the device. For example, a candidate beam for a BFR procedure. The BFR procedure for SCell needs to be improved, for example, if it is not identified. Embodiments of disclosure involve a SCell startup / restart delay for BFR procedures on SCell. This can reduce the power consumption of wireless devices and uplink interference to other wireless devices.

[0292] Figure 29 shows an exemplary embodiment of the BFR procedure in SCell. As shown in Figure 29 The base station includes one or more configuration parameters for multiple cells, including SCell. RRC messages can be sent to wireless devices. One or more RRC messages Sage is used to configure (add or modify) wireless devices in serving cells. This includes the serving cell configuration IE (e.g., ServingCellConfig). A moving cell can be an MCG or SCG SpCell or SCell. The configuration parameters of ell include the first configuration parameter of the BFR procedure on SCell. However, the first configuration parameter is a first set of multiple RSs for beam fault detection, candidate Second multiple RS for beam identification, first threshold for beam fault detection, candidate beam This indicates a second threshold for identification. The configuration parameters of SCell are multiple search spaces, S Multiple CORESETs for PDCCH monitoring on a Cell may be further demonstrated.

[0293] As shown in Figure 29, the base station sends a command indicating the activation of SCell (for example, DCI, It may send MAC CE and / or RRC messages. Respond to receiving commands. Then, the wireless device starts up SCell into an active state. When in the B state, the wireless device has multiple CORE on SCell's active BWP. Monitor PDCCH across multiple search spaces in SET, and use SCell's active BWP to... PDSCH is received, and PUCCH is transmitted via SCell's uplink active BWP. / PUSCH / SRS / PRACH can be sent when SCell is active. In response to this, the wireless device provides a first multiple RS and a first beam fault detection Based on threshold monitoring, the BFR procedure can be executed. The wireless device implements the example shown in Figure 28. By doing so, beam fault detection can be performed.

[0294] As shown in Figure 29, the wireless device performs a second multiple BFR procedure on SCell. Candidate beam selection from a number of RSs can be performed. A wireless device can perform the example shown in Figure 28. Candidate beam selection can be performed by this. The wireless device uses a second multiple RS Therefore, BLER is lower than the second threshold (e.g., rsrp-ThresholdSSB). Alternatively, it may not identify candidate beams with higher L1-RSRP or higher SINR. That's fine.

[0295] In response to the candidate beam not being identified, the wireless device will send a message to the SCell. A MAC CE is sent indicating that the beam is not identified. In one embodiment, the candidate beam is identified. Based on the fact that it is not done, the wireless device will switch the SCell from an active state to a dormant state. It can be put into a power-saving state. When SCell enters hibernation mode, the wireless device will be put into a power-saving state. Stop monitoring PDCCH across multiple search spaces of multiple CORESETs on Cell. Stop, stop receiving PDSCH via SCell, and stop receiving PUCCH / via SCell You can stop sending PUSCH / SRS / PRACH. Put SCell into hibernation mode. In response to the transition, the wireless device will use SCell (e.g., PCell or P It can send CSI reports for UCCH SCell. The wireless device is in hibernation mode. Regarding the SCell, compare it with the CSI report for the active SCell. And, with less CSI report content and / or smaller PUCCH resources With this, CSI reports can be transmitted with a reduced transmission cycle. SCell is put into a dormant state. In response to transitioning to this state, the wireless device will activate the PD on the SCell in the active state. Compared to CCH monitoring, PDCCH monitoring on SCell can be reduced. Wireless devices In response to transitioning the SCell to a hibernation state, P in the active SCell Compared to DCCH monitoring, monitoring periodicity is reduced, the number of search spaces is decreased, and CORES The number of ETs has been reduced, and / or the DCI format has been reduced, monitoring PDCCH It can be seen.

[0296] As shown in Figure 29, based on the reception of CSI reports for SCell in a dormant state The base station may then decide to transition the SCell from a dormant state to an active state. The base station receives CSI reports (including beam reports, for example) from the base station and the wireless device. This indicates that the beam quality of the beam pair link on SCell between the two is better than the threshold. At times, it may be decided to switch SCell to an active state. CSI reports In response to indicating that the base quality is better than the threshold, the base station exits sleep mode. A DCI may be sent indicating the transition of SCell to the active state. SCell paused state and S The DCI-based transition to the Cell Active state initiates the BFR procedure, and the candidate B If the system is not identified, the SCell startup delay can be reduced. An exemplary embodiment is BF If the R procedure is initiated and no candidate beam is identified, PDCCH monitoring on SCell will be performed. This may reduce the power consumption of wireless devices. In an exemplary embodiment, the BFR procedure is initiated, If a candidate beam is not identified, it may reduce uplink interference to other wireless devices. In an exemplary embodiment, if the BFR procedure is initiated and no candidate beam is identified, SCell Startup delay can be reduced.

[0297] Figure 30 shows an illustrative flowchart of the BFR procedure on SCell. Wireless device This is the configuration parameter of SCell, i.e., the first configuration parameter of the BFR procedure on SCell. The meter and configuration parameters include a second configuration parameter for the idle state on SCell. One or more RRC messages containing the first configuration panel may be received. The meter can be implemented as shown in the example in Figure 28. The second configuration parameter is the resting state. This may show the PDCCH monitoring configuration and / or the CSI reporting configuration in hibernation mode. The vice indicates the startup of SCell (for example, DCI, MAC CE and / ma Or it may receive an RRC message. In response to SCell activation, the wireless device The BFR procedure can be implemented based on the first configuration parameter of the BFR procedure. The wireless device, for example, by implementing the example in Figure 28, performs BFR operation on SCell. Candidate beam selection for the order can be performed.

[0298] In one embodiment, the wireless device is found to have a channel quality of candidate beams that is better than a threshold. In response to this, it may be determined that a candidate beam is identified. In response, the wireless device may transmit a MAC CE indicating a candidate beam for SCell. In response to a MAC CE transmission indicating an identified candidate beam, the wireless device transmits an SCe It is possible to continue monitoring PDCCH on ll and maintain the active state of SCell.

[0299] In one embodiment, the wireless device is configured such that the channel quality of the candidate beam is not better than a threshold. In response to this, it may be determined that the candidate beam is not identified. In response, the wireless device indicates that the SCell candidate beam is not identified. A MAC CE may be transmitted. A MAC indicating that the SCell candidate beam is not identified. In response to the CE transmission, the wireless device moves the SCell from the active state to the dormant state. This can be done. Based on the idle state, the wireless device monitors the PDCCH in SCell. It may stop and send SCell's CSI report. Based on the hibernation state, wireless data Compared to PDCCH monitoring on an active SCell, the vice is on PDCCH periodicity can be reduced. Based on the dormant state, the wireless device can reduce SCell Compared to active CSI reports, reports showing reduced SCell periodicity were used. A CSI report can be sent.

[0300] In one embodiment, the wireless device identifies a candidate beam for the BFR on the SCell. The command received as a response to the MAC CE transmitted from the wireless device indicates that it is not present. In response to the request, SCell may be transitioned from an active state to a dormant state. Figure 31 shows an exemplary embodiment of the BFR procedure in SCell. As shown in Figure 31 The base station includes one or more R configuration parameters for multiple cells, including SCell. RC messages can be sent to wireless devices. One or more RRC messages The process can be carried out as shown in the example in Figure 29.

[0301] As shown in Figure 31, the base station sends a command indicating the activation of SCell (for example, DCI, It may send MAC CE and / or RRC messages. Respond to receiving commands. Then, the wireless device starts up SCell into an active state. In response to being in a beam state, the wireless device performs first multiple RS and beam obstruction detection. Based on monitoring of the first threshold for the wireless device, the BFR procedure can be executed. By implementing example 8, beam fault detection can be performed.

[0302] As shown in Figure 31, the wireless device is a second multiple BFR procedure on SCell. Can perform candidate beam selection from RS. The wireless device can select from a second or multiple RS. BLER or other thresholds lower than two thresholds (e.g., rsrp-ThresholdSSB) 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 will send a message to the SCell. It transmits a MAC CE indicating that the device is not identified. The wireless device transmits a MAC CE. In response to transmission, the SCell can maintain an active state. The wireless device can maintain an active state. When l is in an active state, monitoring of the PDCCH on SCell can continue.

[0304] In one embodiment, a wireless device may receive a MAC CE acknowledgment from a base station. Linear devices may receive DCI, including uplink authorization, as a response to MAC CE. DCI is used as an acknowledgment of MAC CE reception, and is the same as the one used for MAC CE transmission. This may indicate a new transmission to the HARQ process. DCI is DCI's NDI field Toggle the NDI value of DCI to indicate confirmation of MAC CE reception. This does not include a power saving indicator or SCell hibernation indicator as confirmation of MAC CE reception. Also, in response to receiving DCI (e.g., MAC CE confirmation), the wireless device This can transition the SCell from an active state to a hibernation state (power-saving state). Wireless device When SCell transitions to a dormant state, the multiple CORESETs on SCell Stop monitoring PDCCH on the search space and access PDSCH via SCell Stop receiving and send PUCCH / PUSCH / SRS / PRACH via SCell. It is possible to stop doing so. In response to putting SCell into hibernation, Wireless devices are for SCell (e.g., on PCell or PUCCH SCell). The CSI report may be sent. The wireless device will send an active SCell for the idle state. Compared to CSI reports for SCell in a critical state, a smaller amount of CSI data With port content and / or smaller PUCCH resources, the transmission cycle has been reduced. In this state, a CSI report may be sent. In response to putting SCell into hibernation state Therefore, the wireless device, compared to PDCCH monitoring on the active SCell, PDCCH monitoring on SCell can be reduced. The wireless device puts SCell into hibernation mode. In response to this, compared to PDCCH monitoring in the active state of SCell, The visual periodicity is reduced, the number of search spaces is reduced, the number of CORESETs is reduced, and / or PDCCH can be monitored with a reduced DCI format. Exemplary embodiments are If the BFR procedure is initiated and no candidate beam is identified, the PDCCH monitoring on SCell will be initiated. Power consumption of wireless devices for viewing can be reduced. An exemplary embodiment is when the BFR procedure is initiated. If a candidate beam is not identified, the SCell startup delay can be reduced.

[0305] In one embodiment, the wireless device initiates a BFR procedure for a first SCell. This can be done without having to identify candidate beams for the BFR procedure for the first SCell. The first SCell is the PUCCH SCell. The candidate beam was not identified. In response, the wireless device maintains the active state of the first SCell, and one or more The second SCell of the number PUCCH SCell is composed of the first SCell. It is possible to transition one or more second SCells from an active state to a dormant state. .

[0306] Figure 32 shows an example of a BFR procedure on SCell. In one embodiment, the wireless device is A BFR procedure can be initiated for one SCell, and B for the first SCell Candidate beams for the FR procedure do not need to be identified, and the first SCell is PUCCH S It is a cell.

[0307] In one embodiment, in response to the candidate beam not being identified, the wireless device uses PUCC. If the H resource is configured on the first SCell, the PUCCH resource on the first SCell The source can be erased, and the active state of the first SCell can be maintained. In one embodiment, wireless The device responds to beam correspondence present between the downlink and uplink, PU CCH resources may be erased. Beam correspondence between downlink and uplink is wireless. The device receives downlink signals (e.g., SSB / CSI-RS / DMRS) in the receiving space. Based on the domain filter (for example, the same as PUC), the uplink signal (for example, PUC) When determining the transmit space domain filter (CH / PUSCH / SRS / PRACH) It may exist. Deleting a PUCCH resource will delete the configuration parameters of the PUCCH resource. This may include not maintaining the router and ceasing the use of PUCCH resources. After clearing the PUCCH resource, the wireless device will be able to use the base station on the first SCell. When it is decided to reconfigure the UCCH resources, R for PUCCH resource reconfiguration It can receive RC messages.

[0308] In one embodiment, in response to the candidate beam not being identified, the wireless device uses PUCC. If the H resource is configured on the first SCell, PUCCH transmission on the first SCell The signal may be interrupted, and the active state of the first SCell may be maintained. The wireless device may go down. In response to the beam correspondence between the link and the uplink, P on the first SCell UCCH transmission can be interrupted, and the active state of the first SCell can be maintained. Interrupting the connection will maintain the configuration parameters of the PUCCH resource, This may include stopping the transmission of UCI via the PUCCH resource. Afterward, the wireless device resumes PUCCH transmission when the beam pair link is restored. This is possible (for example, without receiving a PUCCH resource reconfiguration RRC message).

[0309] In one embodiment, the wireless device initiates a BFR procedure for a first SCell. This can be done without having to identify candidate beams for the BFR procedure for the first SCell. The first SCell is the PUCCH SCell. Uplink transmission configuration indicator The UL-TCI index represents the first SCell's SSB / CSI-RS index. In response, the wireless device performs a PUCCH / PUSCH transmission on the first SCELL. This can be interrupted and the active state of the first SCell can be maintained. SSB / CSI-RS index The scalar is configured on the first SCell for beam fault detection or candidate beam selection. It is possible to identify one of several RSs. Interrupting PUCCH / PUSCH transmission is possible. This may include maintaining the configuration parameters of the PUCCH / PUSCH resource. After interrupting the CCH / PUSCH resources, the wireless device will recover the beampair link. When this happens, PUCCH / PUSCH transmission can be resumed (for example, PUCCH / PUSC (Without receiving the H resource reconfiguration RRC message). In one embodiment, the wireless device U When L-TCI indicates the SSB / CSI-RS index of a cell, SSB / CSI-R SSB / CSI-RS receive spatial domain filters identified by the S index Based on this, a transmit space domain filter can be determined. For example, a wireless device may be It is possible to receive UL-TCI within DCI indicating hop-link permission.

[0310] In one embodiment, the wireless device initiates a BFR procedure for a first SCell. This eliminates the need to identify candidate beams for the BFR procedure for the first SCell. In response to the candidate beam not being identified, the radio device is configured to allow transmission, P Interrupt SP-CSI transmissions and / or SP-SRS transmissions on UCCH / PUSCH. Obtain. The configured authorization, SP-CSI, and / or SP-SRS transmission interruption is configured The permissions granted, the maintenance of SP-CSI and / or SP-SRS configuration parameters, Stopping the transmission of configured authorizations, SP-CSI, and / or SP-SRS. This may include: After interrupting transmission (configured permission, SP-CSI or SP-SRS), A wireless device may resume transmission when the beam pair link is restored (for example, transmission (Without receiving a startup command (MAC CE or DCI) indicating activation of the signal.)

[0311] Figure 33 shows the flow of the SCell BFR procedure according to one embodiment of the exemplary embodiments of this disclosure. The chart shows that in 3310, the wireless device controls the downlink of the active cell. The channel is monitored. In the 3320, the wireless device detects multiple beam fault instances in the cell. In response to detection of a problem, the Beam Fault Recovery (BFR) procedure is initiated. At 3330, the wireless device In response to the initiation of the BFR procedure, Isu determined that no candidate beams were identified based on the threshold. In 3340, the wireless device, in response to the candidate beam not being identified, moves the cell Transition from active to hibernation state. In 3350, the wireless device puts the cell into hibernation state. Based on the transition to a certain state, monitoring of the cell's downlink control channel is stopped. and / or send channel status information reports about the idle bandwidth portion of the cell. ru.

[0312] In one embodiment, the candidate beam is not identified for the cell's beam fault recovery procedure. In response, the wireless device can transition the cell to a dormant state while maintaining the cell's activity.

[0313] According to an exemplary embodiment, transitioning a cell to a dormant state is performed by the cell's downlink control. This includes stopping monitoring your channel. It also includes putting the cell into hibernation mode. This includes switching the active bandwidth portion of a cell to the dormant bandwidth portion of the cell.

[0314] According to an exemplary embodiment, the wireless device performs a beam fault recovery procedure on the cell. Monitor the link control channel.

[0315] According to an exemplary embodiment, the wireless device detects multiple beam fault instances of the cell. In response to the output, the beam fault recovery procedure will be initiated.

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

[0317] According to an exemplary embodiment, the wireless device has a cell configuration parameter that includes multiple bandwidth portions. Receive one or more wireless resource control messages, including a router, and configure parameters - indicates that one of the multiple bandwidth portions is the idle bandwidth portion of the cell.

[0318] According to an exemplary embodiment, a wireless device receives a MAC CE indicating a cell shutdown. The wireless device shuts down the cell in response to receiving a MAC CE indicating cell shutdown. do.

[0319] In one embodiment, the wireless device is one or more PDCCHs of an active cell. It can monitor this. The wireless device can detect several beam fault instances on the cell. In response to this, the BFR procedure may be initiated. The radio device responds to the initiation of the BFR procedure The wireless device can determine that the candidate beam is not identified based on the threshold. A signal may be transmitted indicating that the beam is not identified. The wireless device identifies the candidate beam. In response to not being able to do so, the cell may be transitioned from an active state to a dormant state. Based on the transition, wireless devices will, over a certain period of time, have one or more PDs on a cell. Stop monitoring CCH and, during that period, send CSI reports to the cell. Obtain. In one embodiment, the wireless device has one or more PDCCHs in a first monitoring periodicity. The wireless device can monitor the second monitoring in response to the cell entering a sleep state. It is possible to monitor at least one of one or more PDCCHs in a visual periodic manner. Wireless device The situation is based on channel quality where none of the multiple reference signals are present and the quality is greater than the threshold. Therefore, it can be determined that there are no candidate beams that can be identified from multiple reference signals. The wireless device is B In response to the initiation of the FR procedure, at least one candidate beam is identified based on a threshold. It can be determined. The radio device signals that there is at least one candidate beam for the BFR procedure. The radio device may transmit a signal. In response to at least one identified candidate beam, The cell can be kept in an active state. Based on the active state of the cell, the wireless device It monitors one or more PDCCHs on the cell and sends CSI reports to the cell. obtain.

[0320] In one embodiment, the wireless device has several beam obstructions on an active cell. In response to detecting the stance, the BFR procedure may be initiated. The wireless device may initiate the BFR In response to the initiation of the procedure, it may be determined that the candidate beam is not identified based on the threshold. Linear devices may transmit a signal indicating that a candidate beam is not identified. Wireless devices A DCI may be received as a response to the transmission of a signal. The wireless device responds to the DCI. This allows you to transition a cell from an active state to a dormant state. Based on the dormant state... The wireless device stops monitoring one or more PDCCHs on the cell, and the cell A CSI report can be sent for this. DCI can send a cell from active to dormant state. It is not necessary to include an indication of the transition.

[0321] For example, a wireless device can display a power saving indicator via a power saving channel (PSCH). If so, a wake-up indicator or go- as shown in Figure 26A and / or Figure 26B. It can receive the sleep indicator. It can receive the power saving indicator that indicates wake-up. In response, the wireless device holds the next DRX ON for the DRX cycle, as shown in Figure 26A. In the meantime, to monitor the PDCCH on the cell (PCell or SCell) It can be turned on. It responds to receiving a power saving indicator that shows go-to sleep. Then, as shown in Figure 26B, the wireless device during the next DRX-on duration of the DRX cycle In between, it is possible to skip monitoring of the PDCCH on the cell (PCell or SCell). Yes, it is possible. Wireless devices can save time offsets before the DRX-on duration of the DRX cycle. Power indication (e.g., included in DCI) may be received. The wireless device will remain DRX on. If you skip monitoring the PDCCH of a cell at a given time, the DRX will be on the cell for the duration of the DRX. The CSI report can be continued. Wireless devices have a power saving indicator for each DRX cycle. To receive the signal, the PSCH can be monitored repeatedly.

[0322] In one embodiment, if SCell hibernation is supported, the wireless device will... A first DCI can be received, indicating a transition from the active state to the dormant state of SCell. In response to receiving an indication that the device is transitioning to a sleep state, the wireless device will move to the PD on the SCell. Skip CCH monitoring or reduce PDCCH monitoring, and PDSC on SCell Stop receiving H, stop sending PUSCH on SCell, and stop sending PUSCH to SCell It may send a CSI report. It may receive an indication that SCell is transitioning to a hibernation state. In response to this, the wireless device enables SCell's active BWP, and SCell's second You can switch to the BWP, and the second BWP is configured for hibernation, or This is SCell's default BWP. Wireless devices are released from SCell's hibernation state. The SCell remains in a dormant state until it receives a second DCI indicating a transition to the active state. It can be maintained. In response to the reception of the second DCI, the wireless device turns SCell out of sleep mode. It can be switched to an active state. When SCell is in an active state, wireless The device uses PDCCH monitoring on SCell, and transmits data via SCell's PDSCH. Receives a transport block and sends a transport block via SCell's PUSCH. You can send and submit SCell's CSI report.

[0323] Existing technologies allow wireless devices to display power saving during DRX off duration. The power channel can be monitored (for example, when the DRX on duration timer is not running). ). After receiving a power saving indicator during the DRX off duration, the wireless device will then have the DRX on again. PDCCH monitoring can be started during the duration. PDCCH monitoring during the next DRX-ON duration will start. In response to a power-saving indicator that suggests tiping, the wireless device activates the activated cell (for example, You may skip PDCCH monitoring in PCell or SCell, and / or The system may send a CSI report for the activated cell during the next DRX-ON duration.

[0324] In one embodiment, the wireless device uses a power-saving channel (e.g., PS- via PDCCH) A power saving indicator is received while monitoring DCI with CRC scrambled by RNTI. It is permissible to do so, and power saving indicators include wake-up indicators and SCell idle indicators. The wake-up display, which includes one bit set to the value, will be the DRX of the next DRX cycle. This may indicate monitoring of PDCCH on all cells during the duration. The display shows that when the bit is set to the second value, the DRX ON duration will be for the next DRX cycle. In between, it may be possible to skip monitoring PDCCH on all cells. SCe The 'll' pause display is one or more of the SCell pause displays associated with the SCell. When the bit is set to the first value, the active BWP of SCell is set to the rest of SCell. This may indicate switching to stop BWP. The SCell pause indicator is associated with SCell. When one or more bits of the SCell pause indicator are set to the second value, the cell This could indicate a switch from a dormant BWP to an active SCell BWP.

[0325] In one embodiment, when receiving a wake-up display and a SCell pause display, wireless data Vice uses existing techniques to apply inconsistent behavior on one or more SCells. It is possible. Applying inconsistent behavior to one or more SCells can affect the power of the wireless device. Consumption increases, and / or in DRX operation between base station and wireless device, SC A mismatch in the state of ell may occur. Improve the power saving mechanism and the SCell pause mechanism. There is a need to do so. Exemplary embodiments include power saving mechanisms and SCell idle mechanisms. By combining and / or integrating the elements, the power consumption of wireless devices can be improved. Good, SCell pause / startup transition delay can be improved. Exemplary embodiments are power saving. Combine and / or integrate the force mechanism and the SCell resting mechanism. This improves the power consumption of wireless devices in DRX operation on SCell. It is possible.

[0326] One exemplary embodiment is that the wireless device performs power-saving operation during the DRX-on duration, Alternatively, the DCI indicates whether to transition the SCell between active and dormant states. Transmitted by the station and / or by the radio device, during the DRX off duration It can include receiving.

[0327] One exemplary embodiment includes a wake-up indicator and a SCell pause indicator. Or multiple DCIs (with CRCs scrambled by PS-RNTI) at base Transmitted by the station and / or by the radio device, as well as DRX off persistence. This may include receiving over time. The DRX off duration is, for example, shown in Figure 26A and / or, based on Figure 26B, the symbol / slot before the DRX-on duration of the DRX cycle This is the number of ways. Based on the embodiment, the wireless device has one or more DCI ways By receiving the Quake Up and SCell Pause indicators, blind decoding is performed. This can save power consumption in wireless devices.

[0328] One exemplary embodiment determines that an SCell transitioned to a dormant state is in an active state. To set, and one or more SCell pause and wake-up indicators. In response to receiving DCI, PDCCH monitoring on SCell in hibernation state This may include not applying a wake-up indicator. One exemplary embodiment is SC The SCell, which has transitioned to the ell paused state, is determined to be in the active state, and SC Receiving one or more DCIs, including ell pause and wake-up indicators. In response, wake-up table for CSI reports on SCell in hibernation state This may include applying the indicator. For example, the wake-up indicator may be applied during the DRX-on duration. If it indicates that it is not awake (for example, skipping PDCCH monitoring), the radio The device does not monitor PDCCH on a dormant SCell during the DRX-on duration. The wake-up indicator will wake up at the DRX on duration (for example, PDCCH If monitoring is indicated, the wireless device will keep SCell in a dormant state (e.g., SCe (By not applying a wake-up indicator to ll), SCell is kept in a hibernation state. By doing so, the wireless device will have a PDCCH on SCell for the duration of the DRX-ON period. It does not monitor. In one embodiment, the wake-up indicator is set to wake up during the DRX on duration. If the wireless device indicates that it is not pinged (for example, skipping PDCCH monitoring), then the wireless device Send a CSI report for the SCell's paused BWP during the DRX-on duration. Example A schematic embodiment shows the power consumption of the wireless device during DRX operation on SCell in a dormant state. Consumption can be improved.

[0329] Figure 34 shows an exemplary embodiment of integrated power-saving operation and SCell hibernation transition. Line devices receive the first configuration parameter for power-saving operation (or configuration) from the base station and One or more R parameters including a second configuration parameter for SCell pause operation (or configuration) RC messages can be received. The first configuration parameter for power-saving operation is shown in Figures 26A and 22. This can be carried out by the embodiments shown in 6B and / or Figure 27. The second SCell pause operation The configuration parameters are the SCell's BWP when transitioning to hibernation, and when transitioning to hibernation. In the case of periodic CSI reporting configuration, and / or one of the dormant SCells This may represent a PDCCH configuration. One or more PDCCH configurations are in a dormant state. When transferring one or more DCI formats to a SCell state, PDCCH monitoring This may indicate one or more search spaces / CORESETs on SCell.

[0330] As shown in Figure 34, the wireless device sends a command indicating the activation of SCell (for example, R It may receive RC messages, MAC CE, and / or DCI. Multiple SCel When configured with l, the command indicates whether SCell is started, and each display is SC It may include multiple displays related to ell. In response to the command, the wireless device will It can be started.

[0331] In one embodiment, the wireless device maintains DRX on duration based on a first configuration parameter. At the first point before the scheduled time, monitor the PDCCH to receive DCI, including PS / Hibernate indication. It can also be observed that the gap between the first time and the start time of the DRX-on duration is RRC It may be composed of a message, or it may be predefined to a fixed value. PDCCH is first It may be a power-saving channel based on the configuration parameters. DCI is a PS / hibernation indicator ( For example, a CRC (Critical Range Correlation) could be scrambled with a dedicated RNTI for PS-RNTI. The dedicated RNTI may be different from the C-RNTI.

[0332] In one embodiment, the wireless device monitors the PDCCH during the DRX off duration. The wireless device may receive DCI including PS / Hibernate indications. The display indicates that the wireless device is performing power-saving operation, or that the wireless device is SC It may be possible to decide whether to indicate that the ell system will transition to a hibernation state.

[0333] In response to the PS / Hibernate indicator showing power-saving operation, the wireless device will activate all activated cells. For example, PDCCH monitoring on PCell (SCells) during the next DRX-ON duration. It may be skipped. In response to the PS / Hibernate indicator showing power-saving operation, the wireless device will PS If the / Hibernate display includes a PS display bitmap, on one or more activated cells, the following PDCCH monitoring can be skipped during the DRX-ON duration. Each bit of the bitmap is Corresponding to one of the one or more activated cells, the wireless device will then... During the duration, skip PDCCH monitoring of one or more activated cells. It indicates whether or not to do so. In response to the PS / Hibernate indicator showing power saving operation, the wireless device S You may continue reporting CSI to the cell, and the CSI report will remain active. It is configured for the SCell. Wireless devices may skip PDCCH monitoring. The CSI report may continue until the end of the DRX-ON duration. The vice, for example, determines the DRX off duration based on the expiration of the DRX on duration timer. In response to the switch to, the CSI report may be stopped. The wireless device will then use the next DRX service. During the cycle, monitor the PDCCH to receive the PS / Hibernate indicator before the DRX ON duration. Viewing, skipping PDCCH monitoring, and / or showing power-saving operation PS If a / pause indicator is received, continue CSI reporting with the DRX on duration, DR The process may be repeatable, including stopping the CSI report at the X-off duration.

[0334] In response to the PS / Hibernation indicator showing SCell transitioning to hibernation, the wireless device is activated. To transition the SCell from active to hibernate, or from hibernate to active It can be decided whether to transition to the active state. PS / Hibernate indicates the transition of SCell to the hibernate state. In response to the stop indicator, the wireless device, based on the second configuration parameter, Alternatively, a pause action may be performed, which stops monitoring of the PDCCH on the SCell. To do so, stop receiving PDSCH on SCell, and stop the appling on SCell. Stop transmitting the signal / channel (e.g., PUSCH / PUCCH / SRS / PRACH) To stop, and to send the first CSI report for SCell in a dormant state. Includes: Responding to the PS / Hibernate indicator, which shows the transition of SCell from hibernation to active state. Then, the wireless device performs an active action on the active SCell. Also, active actions include monitoring PDCCH on SCell, on SCell Receiving PDSCH, uplink signals / channels on SCell (e.g., PU Sending SCH / PUCCH / SRS / PRACH) and an active SCel This includes sending a second CSI report for l, for a dormant SCell. The first CSI report is the second CSI report for the active SCell. Furthermore, longer periodicity and / or fewer CSI quantities (e.g., PMI / CQ) It can consist of I / RI / RSRP etc. When it consists of multiple active SCells The PS / Hibernation indicator indicates that the wireless device is one of several active SCells. Each bit of the bitmap indicates whether to transition l to a hibernation or active state. The bit corresponds to one of multiple active SCELLs, PS / Hibernation indicator bit. A map may be included. After the SCell state transitions, the wireless device will enter another SCell. Until another PS / Hibernate indicator is received that indicates a state transition, SCell will remain in hibernate state or SCe It is possible to maintain the active state of ll.

[0335] In one embodiment, the PS / Hibernation indicator in DCI is defined as a first value (e.g., 0) when power saving activity is active. It can be represented as a 1-bit display where the second value (e.g., 1) indicates SCell pause operation. In one embodiment, DCI enables the wireless device to perform power-saving operation for the DRX cycle. This implicitly indicates whether to perform a SCell state transition between a dormant state and an active state. It is possible. DCI is the CRC that is scrambled in the first RNTI, DRX cycle It may exhibit power-saving operation. DCI is a CRC that is scrambled by the second RNTI. , may indicate SCell state transitions. DCI transmitted in the first DCI format is D This may indicate power-saving operation of the RX cycle. DCI transmitted in the second DCI format is , may indicate SCell state transition. DCI is a first predetermined field By setting it to this value, power-saving operation of the DRX cycle may be indicated. DCI is one or more A field can be set to a second predetermined value to indicate a SCell state transition. One or more fields may be used. The numerical fields are frequency resource indicator, time resource indicator, MC S indicator, NDI, HARQ process number, SRS indicator, CSI report It may include at least one of the following: a marker indicator and / or similar devices.

[0336] Figure 35 shows an example flowchart of PS / sleep operation. The wireless device is SCell. The above configuration parameters for PS operation and sleep operation can be received. The wireless device is SCe Commands that indicate the startup of ll (e.g., RRC messages, MAC CE and / or D CI) can be received. Wireless devices can invoke SCell based on commands. In response to the activation of the Cell, the wireless device issues the first CSI report to the SCell. It may start. The wireless device may, at some point before the DRX-on duration of the DRX cycle The PDCCH can be monitored to receive PS / Hibernate indications. The DRX cycle is shown in Figure 24. As shown, this may include DRX on duration and DRX off duration. Wireless device The chair receives a PS / Hibernate indicator while monitoring PDCCH at the point before the DRX-ON duration. It is possible. Wireless devices may perform power-saving operations or switch between active and hibernating states. It can decide whether to perform a SCell state transition. In response to PS / hibernation indicators, including power saving indicators. The wireless device monitors the PDCCH during the DRX-on duration of the DRX cycle. You may skip this and / or continue with the first CSI report. Wake up In response to a PS / Hibernate state, including a display of a power status, the wireless device turns on the DRX cycle. During the specified period, monitor PDCCH on SCell and continue the first CSI report. This is possible. The PS / Hibernate indicator shows the transition from active to hibernate state. In response, the wireless device skips PDCCH monitoring on SCell and enters a dormant state. A second CSI report can be sent to ell. SC can be switched from hibernation to active. In response to the PS / Hibernate indicator showing a state transition on SCell, the wireless device PD on SCell Start CCH monitoring and send the first CSI report for active SCells. It is possible. The wireless device will not respond until it receives another PS / Hibernate indicator indicating a SCell state transition. The SCell state (paused or active) can be maintained.

[0337] Figure 36 shows an example of PS operation and SCell pause. In one embodiment, wireless devices The command indicates the startup of SCell (for example, RRC message, MAC CE message, etc.) The wireless device may receive a SCell based on the command. It can move. In response to the activation of SCell, the wireless device transmits a first C to SCell. SI reports (e.g., periodic) may be initiated, and the first CSI report is active. It is configured for SCell in a B state. The wireless device, at the first time, the first PS / The PDCCH may be monitored to receive a pause indicator. The wireless device monitors the PDCCH. The first PS / Hibernation indicator may be received. SCell state from active state to hibernation state. In response to the PS / Hibernate indicator, the wireless device puts SCell into hibernation mode. This is possible. During the SCell's dormant period, the wireless device will not be able to use the SCell's PDCC. H monitoring may be skipped, and a second CSI report may be sent for a dormant SCell.

[0338] As shown in Figure 36, the wireless device may receive a second PS / Hibernate indicator at a second time point. The second PS / Hibernate indicator may include a Wake-up indicator. The wireless device is the second Based on the wake-up indicator in the PS / Hibernate display, SCell is switched from hibernation to active. You can decide whether to transition to a state or keep SCell in a dormant state.

[0339] In one embodiment, the wireless device responds to a second PS / Hibernate indicator indicating wake-up. This can transition SCell from hibernation to active. The second PS / hibernation display is It is not necessary to show SCell state transitions. In one embodiment, the wireless device is a wireless device The first PS / Hibernation indicator regarding SCell's state (active or hibernating) The second PS / Hibernate display will override (or have a higher priority) it. Sometimes, SCell can be transitioned from a dormant state to an active state. Exemplary embodiments include: Downlink signal overhead can be reduced for power saving and hibernation indicators.

[0340] In one embodiment, the wireless device keeps SCell in a dormant state and / or we In response to a second PS / pause indicator showing an increase, one or more signals are triggered, except for SCell. The duration of DRX on a number of active cells (e.g., PCell or SCell) , PDCCH can be monitored. The second PS / Hibernate indicator does not indicate SCell state transition. This is also acceptable. In one embodiment, the wireless device determines a second PS / hibernation display. When this happens, SCell can be kept in a hibernation state. The first PS / Hibernation indicator indicates the state of SCell. The state (active or hibernating) is determined independently or separately by the wireless device. It can be used in one embodiment, the wireless device is the second PS / sleep schedule. The first PS / Hibernation table shows the state of SCell (active or hibernating). When it is decided not to overwrite the indicator, SCell can be kept in a hibernation state.

[0341] In one embodiment, the base station transmits a dormant SCell to an activated SCe Determined as ll, or as SCell stopped for power-saving operation (consider or process) One or more RRC messages, including a configuration parameter indicating whether to process (or not process). It can transmit. In one embodiment, the base station and / or wireless device may transmit for low-power operation. As per established rules, a dormant SCell is determined to be an active SCell (considered). (or processing) may be performed. In one embodiment, the base station and / or wireless device may perform power-saving operation. Therefore, according to the established rules, a dormant SCell is determined to be a stopped SCell. It can be determined.

[0342] In one embodiment, the wireless device transmits a first SCell that is in a dormant state to an activated SCell. It can be determined as ell (for example, without or with sparse PDCCH monitoring). When a power saving indicator, including an ignition-up indicator, is received, the wireless device enters the first S state of hibernation. Based on determining the cell as the active SCell, the DRX-on duration (For example, sparse PDCCH monitoring configured for dormancy, or active state) The first SCell can be monitored (by PDCCH monitoring configured for this purpose). Go-to sleep display for SCell, cross-slot scheduling, or When a wireless device receives a power saving indicator, including a maximum MIMO layer reduction indicator, it will, for example, enter a power off state. Based on determining the first SCell in the stopped state as the active SCell, Then stop PDCCH monitoring, apply cross-slot scheduling, and / or By applying a reduced maximum MIMO layer on SCell, the first rest state The SCell can be used to display power saving indicators.

[0343] In one embodiment, the wireless device transmits a first SCell that is in a dormant state to a stopped SCell. It can be determined as ell. When receiving power saving indicators including wake-up indicators, wireless Vice determines that the first SCell in a dormant state is the stopped SCell. Therefore, the monitoring of the first SCell is skipped, and other startups are performed during the DRX-on duration. A cell (e.g., PCell or SCell) can be monitored. For the first SCell Go-to sleep display, cross-slot scheduling, or maximum MIMO layer reduction. When a power saving indicator, including a low power indicator, is received, the wireless device, for example, enters a first S state of hibernation. Based on determining that a Cell is a stopped SCell, cross-slot scheduling By not applying a ring and not applying a reduced maximum MIMO layer to the first SCell, Therefore, it's not necessary to apply the power saving indicator to the first SCell in hibernation mode.

[0344] Figure 37 shows an exemplary embodiment of SCell idle management. In one example, the wireless device is The base station sends one or more RRC messages containing configuration parameters for multiple cells. It can receive. The configuration parameters are for wake-up display for DRX operation. Downlink control channel configuration parameters for receiving DCI including cell pause indicators It may indicate a ter. In one embodiment, the configuration parameter is PS-R for receiving DCI. This may indicate NTI. The configuration parameter is the control channel resource for receiving DCI. For example, it may indicate time, frequency, beam, periodicity, etc.

[0345] In one embodiment, the wireless device has multiple SCells (for example, a first SCell and Commands indicating the startup of the second SCell (for example, RRC messages, MAC CE) The wireless device may receive a call / or DCI. Based on the command, the wireless device will receive multiple SCs. It is possible to start ell.

[0346] In response to starting SCell (for example, the first SCell and the second SCell) In response, even if the wireless device starts a SCell CSI report (e.g., periodic), Often, CSI reports are configured for active SCells. Wireless devices The device can monitor the PDCCH on SCell. Wireless devices can use SCell to monitor the PDCCH. It may receive a link packet and / or monitor the PDCCH on SCell. Based on receiving DCI, uplink data packets are sent via SCell. It can send.

[0347] In one embodiment, the wireless device is in a state of hibernation, which indicates switching (not shown in Figure 37). Based on the reception of the display (e.g., DRX on duration), SCell's active BWP This may be switched to SCell's sleep BWP. In one embodiment, the wireless device sleeps Based on the display, the first SCell may be switched to a paused BWP. The wireless device Based on the pause indicator, you may switch to the non-pause BWP of the second SCell.

[0348] In one embodiment, the wireless device includes DCI(P) with wake-up and sleep indicators. (Along with the CRC scrambled by S-RNTI) can be received by wireless devices. This is the DRX of the DRX cycle (as shown, for example, in Figures 26A and / or 26B). DCI can be received during the time prior to the ON duration.

[0349] In one embodiment, the first SCell is switched to the non-hibernation BWP of the first SCell. In response to the DCI cell hiatus indicator, the wireless device puts the first SCELL into hiatus mode. From there, it may be transitioned to the active state and / or the first SCell's dormant BW You may switch from P to the non-pause BWP of the first SCell. Pause B of the first SCell WP and non-hibernating BWP are the configuration parameters of the first SCell (for example, one of the above). Or it may consist of multiple RRC messages. In one embodiment, the second SCell is the In response to the DCI cell pause indicator, which indicates switching to pause BWP for SCell 2, The wireless device may transition the second SCell from an active state to a dormant state. Switch from the non-pause BWP of the second SCell to the pause BWP of the second SCell. It may be replaced. The paused BWP and non-pause BWP of the second SCell It consists of configuration parameters (for example, one or more RRC messages as described above). obtain.

[0350] In one embodiment, a wake-up display shows PDCCH monitoring during the DRX-on duration. In response, the wireless device activates the first SCELL (which is not in a dormant state). Based on this, a wake-up display can be applied to the first SCell. In one embodiment, The linear device, during the DRX-on duration of the DRX cycle, has a PDCC on the first SCell. H can be monitored. The wireless device, during the DRX off duration of the DRX cycle, first SC PDCCH monitoring on ell can be skipped.

[0351] In one embodiment, a wake-up display indicating PDCCH monitoring during the DRX-on duration is shown. In response, the wireless device puts the SCell into a dormant state based on the second SCell which is in a dormant state. Maintain this setting and monitor the second SCell's PDCCH during the DRX-on duration of the DRX cycle. It can be skipped. The wireless device, based on the second SCell in a sleep state, the second SCe It is not necessary to apply the wake-up indicator to ll. SCell's PDCCH in hibernation state. By not applying wake-up indicators to monitoring, power consumption of wireless devices may be improved. .

[0352] Figure 38 shows a flowchart illustrating an example of an embodiment. In one embodiment, the wireless device is One or more configurations for receiving DCI, including wake-up and cell pause indicators. A number of RRC messages may be received from the base station. Based on the example in Figure 37, one or more The RRC message can be implemented. The wireless device will receive a command indicating cell startup. It can receive a command. The wireless device can start a cell based on the command. Wireless device In response to the activation of the cell, the first BWP of the cell can be activated. In one embodiment, Based on the activation of the first BWP, the wireless device activates the PDCCH on the cell's first BWP. It can be monitored.

[0353] In one embodiment, the wireless device includes a DCI (Digital Color Indicator) with wake-up and cell hibernation indicators. It may receive. The wake-up indicator will be displayed during the DRX-on duration of the next DRX cycle. This may indicate wake-up operation (e.g., PDCCH monitoring and CSI reporting). The quap-up indicator indicates power-saving operation during the DRX-on duration of the next DRX cycle (for example). This may indicate that PDCCH monitoring is skipped and CSI reporting is maintained.

[0354] In one embodiment, based on receiving a cell pause indicator, the wireless device first The cell may be put into a dormant state, including switching from a BWP to a dormant BWP. The device may stop PDCCH monitoring on a dormant cell. The wireless device will Regardless of whether the wake-up indicator shows wake-up operation or power-saving operation, the sleep mode PDCCH monitoring on the device can be stopped. In one embodiment, based on the reception of a wake-up indicator... The wireless device is associated with the wake-up indicator on a dormant cell. Port operation can be applied. In one embodiment, during the DRX-on duration of the DRX cycle... In response to a wake-up display showing a CSI report, the wireless device indicates that the cell is in sleep mode. When this is the case, a CSI report for the cell's dormant BWP may be sent. For example, DR This shows PDCCH monitoring and CSI reports during the DRX-on duration of the X cycle. In response to the wake-up indicator, the wireless device monitors the PDCCH on the dormant cell. It is possible to skip and send a CSI report for dormant BWP of dormant cells.

[0355] Figure 39 shows an exemplary flowchart of one embodiment. In 3910, the wireless device Based on PS-RNTI, PDCCH in the DRX-on duration of the DRX cycle Wake-up display indicates monitoring, and cell pause indicates switching to the cell's pause bandwidth portion. Receive one or more displays, including a display. In 3920, the wireless device receives a cell hiatus schedule. Based on the indication, transition the cell to a dormant state, including switching to the cell's dormant BWP. Based on the 3930, which transitions the cell to sleep and wake-up display, wireless data The vice maintains cell activation while controlling cell downlink during DRX-on duration. Stop monitoring the channel and send CSI reports about the cell's dormant BWP.

[0356] According to an exemplary embodiment, the wireless device uses the active bandwidth portion of the cell to shut down the cell. In response to switching to the bandwidth portion, the active cell can be determined.

[0357] According to an exemplary embodiment, the wireless device opens the DRX-on duration of the DRX cycle. During the period prior to the start date, one or more indications in at least one DCI may be received.

[0358] According to an exemplary embodiment, the channel status information report is one of the idle bandwidth portions of the cell. Alternatively, it may include the received power values ​​of one or more reference signals from multiple reference signals. Channel status The information report may be based on one or more reference signals in the rest bandwidth portion of the cell. Channel status information reports can be configured on the idle bandwidth portion of the cell. The report is a periodic channel status information report transmitted at multiple periodic transmission opportunities. It may include the channel status information report, semi-persistent channel status information report. It can include, and the semi-persistent channel status information report has multiple transmissions with periodicity. The information sent on the occasion, and / or the semi-persistent channel status report, is a semi-persistent channel It is triggered by the status report activation command.

[0359] According to an exemplary embodiment, the wireless device controls the downlink of the dormant bandwidth portion of the cell. You can stop monitoring the channel.

[0360] According to an exemplary embodiment, the wireless device has a CRC bit that is transmitted by PS-RNTI. In a cramped state, one or more downlink systems including one or more displays Information can be received.

[0361] According to an exemplary embodiment, in response to the second cell being in a stopped state, the DRX is turned ON. During this time, the wireless device skips monitoring the downlink control channel of the second cell. This allows the transmission of the channel status information report for the second cell to be skipped.

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

[0363] According to an exemplary embodiment, the wireless device includes one configuration parameter for multiple cells. Alternatively, it can receive multiple Radio Resource Control (RRC) messages. The device may receive a MAC CE indicating cell activation. The wireless device will receive the cell's MAC CE's response includes activating the first bandwidth portion as the active bandwidth portion. In response to the signal, the cell may be activated, and the first bandwidth portion is different from the idle bandwidth portion. It monitors the downlink control channel of the cell's primary bandwidth portion.

[0364] According to an exemplary embodiment, the wireless device receives the cell configuration parameters from the base station. It can receive one or more RRC messages, and the configuration parameter is cell This shows the paused BWP for multiple BWPs. The configuration parameters include one or more displays. It may include a PS-RNTI for receiving one or more downlink control information. The configuration parameters are configured so that downlink control channel resources are configured in the cell's idle bandwidth portion. This may indicate that it is not configured. The configuration parameters indicate that the search space is configured in the rest bandwidth portion of the cell. This may indicate that it has not been done. One or more RRC messages indicate the first DRX operation. It may include two configuration parameters, the second configuration parameter for DRX operation being DRX Cycle length, DRX cycle start offset, and DRX on for DRX cycle Includes duration. One or more RRC messages constitute a third configuration of power-saving operation. It may include parameters, and a third configuration parameter for power-saving operation is the DRX cycle. For the start of the DRX on duration, one or more displays including one or more Start monitoring the downlink control channel to receive downlink control information. Includes a time offset to indicate the symbol.

[0365] According to an exemplary embodiment, the wireless device receives a MACCE indicating a cell shutdown. This is possible. The wireless device responds to receiving a MAC CE indicating cell failure. The cell may be shut down. In response to the cell being shut down, the wireless device will use the cell's idle bandwidth portion. The transmission of channel status information reports may be stopped.

[0366] According to an exemplary embodiment, one or more displays transition from the dormant state of the second cell to the active state. The wireless device may further include a second cell pause indicator that indicates a transition to a live state. Based on the cell's dormant state, the second cell may be transitioned from dormant to active. Transitioning the second cell from a dormant state to an active state involves the dormant bandwidth of the second cell. This includes switching from the width portion to the second bandwidth portion of the second cell. In one embodiment, one or Multiple RRC messages are sent to one of the multiple bandwidth portions of the second cell. This may include configuration parameters shown as the second bandwidth portion. The second cell is activated. Based on transitioning to the status and wake-up display, during the DRX-on duration, wireless The device monitors the downlink control channel of the second cell and the second bandwidth of the second cell. A channel status information report for the width portion can be sent. Channel status information for the second cell The report is also based on one or more reference signals in the second bandwidth portion of the second cell. Good. The wireless device monitors the downlink control channel of the second bandwidth portion of the second cell. It can be seen. The wireless device is the downlink control channel of the second bandwidth portion of the second cell. While monitoring, a second DCI may be received. The wireless device indicates uplink permission. Based on the second DCI, uplink TB can be transmitted. The wireless device can transmit downlink Based on the second DCI indicating the allocation, downlink TB may be received.

Claims

1. By the wireless device (106), A wake-up display showing downlink control channel monitoring during the DRX-on duration of a discontinuous reception (DRX) cycle, A dormancy indicator shows that the secondary cell (SCell) has been switched to a dormant state. Receiving a display that includes, Based on the pause display and wake-up display during the DRX ON duration, The wireless device stops monitoring the downlink control channel of the SCell in the dormant state while maintaining the other SCells in the dormant state in an active state. The wireless device transmits a channel status information report to the SCell which is in a dormant state. A method including, A method further comprising determining that the SCell is in an active state in response to the wireless device switching the SCell to the hibernation state.

2. By a wireless device (106), A wake-up display showing downlink control channel monitoring during the DRX-on duration of a discontinuous reception (DRX) cycle, A dormancy indicator shows that the secondary cell (SCell) has been switched to a dormant state. Receiving a display that includes, Based on the pause display and wake-up display during the DRX ON duration, The wireless device stops monitoring the downlink control channel of the SCell in the dormant state while maintaining the other SCells in the dormant state in an active state. The wireless device transmits a channel status information report to the SCell which is in a dormant state. A method including, A method wherein the display is received by the wireless device in at least one downlink control information (DCI) during the DRX off duration, and the DRX off duration is outside the DRX on duration.

3. The wireless device further includes receiving one or more radio resource control (RRC) messages from a base station (160) that include the configuration parameters of the SCell, The method according to claim 1 or 2, wherein the configuration parameter indicates the idle state of the SCell.

4. The wireless device receives a media access control element indicating the shutdown of the SCell, In response to receiving the media access control element indicating the shutdown of the SCell by the wireless device, the SCell is shut down. The method according to any one of claims 1 to 3, further comprising:

5. A wireless device, One or more processors, When executed by the one or more processors, a memory is provided that stores instructions causing the wireless device to perform the method according to any one of claims 1 to 4. Wireless devices including

6. A non-temporary computer-readable medium that, when executed by one or more processors, includes instructions causing one or more processors to perform the method according to any one of claims 1 to 4.

7. The base station (160) communicates to the wireless device (106): A wake-up display showing downlink control channel monitoring during the DRX-on duration of a discontinuous reception (DRX) cycle, A dormancy indicator shows that the secondary cell (SCell) has been switched to a dormant state. Sending a display that includes, Based on the pause display and wake-up display during the DRX ON duration, The base station stops transmitting the downlink control channel of the SCell in the dormant state while maintaining the other SCells in the active state. The base station receives a channel status information report from the wireless device for the SCell which is in a dormant state. A method including, A method further comprising determining that the SCell is in an active state in response to the base station switching the SCell to the idle state.

8. The base station (160) provides the wireless device (106) with A wake-up display showing downlink control channel monitoring during the DRX-on duration of a discontinuous reception (DRX) cycle, A dormancy indicator shows that the secondary cell (SCell) has been switched to a dormant state. Sending a display that includes, Based on the pause display and wake-up display during the DRX ON duration, The base station stops transmitting the downlink control channel of the SCell in the dormant state while maintaining the other SCells in the active state. The base station receives a channel status information report from the wireless device for the SCell which is in a dormant state. A method including, A method wherein the indication is transmitted by the base station in at least one downlink control information (DCI) during the DRX off duration, and the DRX off duration is outside the DRX on duration.

9. The base station further includes transmitting one or more radio resource control (RRC) messages to the wireless device, which include the configuration parameters of the SCell. The method according to claim 7 or 8, wherein the configuration parameter indicates the idle state of the SCell.

10. The base station transmits a media access control element indicating the shutdown of the SCell, In response to the base station transmitting the media access control element indicating the shutdown of the SCell, the SCell is shut down. The method according to any one of claims 7 to 9, further comprising:

11. It is a base station, One or more processors, A memory that stores an instruction to cause the base station to execute the method according to any one of claims 7 to 10 when executed by one or more processors, Base stations including this one.

12. A non-temporary computer-readable medium that, when executed by one or more processors, includes instructions causing one or more processors to perform the method according to any one of claims 7 to 10.

13. The wireless device according to claim 5, The base station described in claim 11 and A system that includes this.

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