Monitoring dormant search space set group switching

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can switch from a first group of search space sets for monitoring a physical downlink control channel (PDCCH) to an empty group of search space sets. The UE can refrain from monitoring the PDCCH based at least in part on switching to the empty group. In some aspects, the UE can switch from a first group of PDCCH search space sets to at least one dormant group of PDCCH search space sets identified in configuration information. The UE can also process one or more PDCCH search space sets of the at least one dormant group of PDCCH search space sets based at least in part on the received configuration information. Numerous other aspects are provided.

Description

[0001] Cross-references to related applications

[0002] This patent application claims U.S. Provisional Patent Application No. 63 / 198,806, filed November 13, 2020, entitled "SEARCH SPACE SET GROUPSWITCHING FOR MONITORING DORMANCY"; U.S. Provisional Patent Application No. 63 / 202,826, filed June 25, 2021, entitled "SEARCH SPACE SET GROUPSWITCHING FOR MONITORING DORMANCY"; U.S. Provisional Patent Application No. 63 / 138,739, filed January 18, 2021, entitled "TECHNIQUES FOR PDCCH SKIPPINGBASED ON PDCCH SEARCH SPACE SET GROUP SWITCHING"; and U.S. Provisional Patent Application No. 63 / 198,806, filed November 11, 2021, entitled "SEARCH SPACE SET GROUPSWITCHING FOR MONITORING DORMANCY". The priority of U.S. non-provisional patent application No. 17 / 454,527, entitled “SPACE SET GROUP SWITCHING FOR MONITORING DORMANCY”, is hereby expressly incorporated herein by reference.

[0003] open field

[0004] Various aspects of this disclosure generally relate to wireless communication, and more particularly to techniques and apparatus for switching search space clusters for monitoring hibernation.

[0005] background

[0006] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0007] A wireless network may include several base stations (BSs) capable of supporting communication for several user equipments (UEs). UEs may communicate with the BS via downlink and uplink. "Downlink" or "forward link" refers to the communication link from the BS to the UE, while "uplink" or "backlink" refers to the communication link from the UE to the BS. As will be described in more detail herein, the BS may be referred to as a B-node, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, or 5G B-node.

[0008] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. NR (which can also be referred to as 5G) is an enhancement set of the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband Internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL), and using CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow.

[0009] Overview

[0010] In some aspects, a wireless communication method performed by a user equipment (UE) includes: switching from a first group of a search space set for monitoring the physical downlink control channel (PDCCH) to a dormant group of the search space set in a first carrier; and suppressing monitoring of the PDCCH based at least in part on the switch to the dormant group.

[0011] In some aspects, a wireless communication method performed by a base station includes: determining that a UE will switch from a first group of a search space set for monitoring a PDCCH to a sleep group of the search space set in a first carrier; and transmitting to the UE an indication to switch to the sleep group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the sleep group.

[0012] In some aspects, a wireless communication method performed by a UE includes: switching from a first group of a search space set for monitoring a PDCCH to a first non-dormant group of the search space set in a first carrier. The UE may be restricted to switching from the first group to a dormant group of the search space set in the first carrier. The method may include: switching from the first non-dormant group to a dormant group; and suppressing monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0013] In some aspects, a UE for wireless communication includes: a memory and one or more processors coupled to the memory and configured to: switch from a first group of a search space set for monitoring PDCCH to a dormant group of the search space set in a first carrier; and suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0014] In some aspects, a base station for wireless communication includes: a memory and one or more processors coupled to the memory and configured to: determine that a UE will switch from a first group of a search space set for monitoring a PDCCH to a dormant group of the search space set in a first carrier; and transmit an indication to the UE to switch to the dormant group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0015] In some aspects, a UE for wireless communication includes: a memory and one or more processors coupled to the memory and configured to: switch from a first group of a search space set for monitoring a PDCCH to a first non-dormant group of the search space set in a first carrier. The UE may be restricted to switching from the first group to a dormant group of the search space set in the first carrier. The one or more processors may be configured to: switch from the first non-dormant group to a dormant group; and suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0016] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a UE, cause the UE to: switch in a first carrier from a first group of a search space set for monitoring a PDCCH to a dormant group of the search space set; and suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0017] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a base station, cause the base station to: determine that a UE will switch from a first group of a search space set for monitoring a PDCCH to a dormant group of the search space set in a first carrier; and transmit an indication to the UE to switch to the dormant group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0018] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a UE, cause the UE to: switch in a first carrier from a first group of a search space set for monitoring a PDCCH to a first non-dormant group of the search space set, wherein the UE is restricted to switching in the first carrier from the first group to the dormant group of the search space set; switch from the first non-dormant group to the dormant group; and suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0019] In some aspects, an apparatus for wireless communication includes: means for switching from a first group of a search space set for monitoring a PDCCH to a dormant group of the search space set in a first carrier; and means for suppressing monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0020] In some aspects, an apparatus for wireless communication includes: means for determining that a UE will switch from a first group of a search space set for monitoring a PDCCH to a sleep group of the search space set in a first carrier; and means for transmitting an indication to the UE to switch to the sleep group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the sleep group.

[0021] In some aspects, an apparatus for wireless communication may include means for: switching in a first carrier from a first group of a search space set for monitoring a PDCCH to a first non-dormant group of the search space set; wherein the apparatus is restricted in the first carrier to switching from the first group to a dormant group of the search space set; switching from the first non-dormant group to a dormant group; and suppressing monitoring of the PDCCH at least in part based on the switching to the dormant group.

[0022] In some aspects, a wireless communication method performed by a UE includes: receiving configuration information including information identifying one or more sleep groups of a Physical Downlink Control Channel (PDCCH) search space set. The method may include: switching from a first group of the PDCCH search space set to at least one sleep group of the identified sleep groups of the PDCCH search space set. The method may include: processing one or more PDCCH search space sets in at least one sleep group of the PDCCH search space set based at least in part on the received configuration information.

[0023] In some aspects, an apparatus configured for wireless communication includes: means for receiving configuration information including information identifying one or more dormant groups of a PDCCH search space set. The apparatus may include: means for switching from a first group of the PDCCH search space set to at least one dormant group of the identified one or more dormant groups of the PDCCH search space set. The apparatus may include: means for processing one or more PDCCH search space sets in at least one dormant group of the PDCCH search space set based at least in part on the received configuration information.

[0024] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a UE, cause the UE to: receive configuration information including information identifying one or more sleep groups of a PDCCH search space set; when executed by one or more processors of the UE, cause the UE to: switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set; and when executed by one or more processors of the UE, cause the UE to: process one or more PDCCH search space sets in at least one sleep group of the PDCCH search space set, at least in part, based on the received configuration information.

[0025] In some aspects, a UE for wireless communication includes: a memory and one or more processors coupled to the memory and configured to: receive configuration information including information identifying one or more sleep groups of a PDCCH search space set. The one or more processors may be configured to: switch from a first group of the PDCCH search space set to at least one sleep group of the identified sleep groups of the PDCCH search space set. The one or more processors may be configured to cause the UE to: process one or more PDCCH search space sets in at least one sleep group of the PDCCH search space set based at least in part on the received configuration information.

[0026] In some aspects, a wireless communication method performed by a base station includes: transmitting configuration information including information identifying one or more sleep groups of a PDCCH search space set, the one or more sleep groups of the PDCCH search space set including one or more PDCCH search space sets to be processed at least in part based on the received configuration information. The method may include: transmitting an indication to switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein the at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0027] In some aspects, an apparatus configured for wireless communication includes: means for transmitting configuration information including information identifying one or more sleep groups of a PDCCH search space set, the one or more sleep groups of the PDCCH search space set including one or more PDCCH search space sets to be processed at least in part based on the received configuration information. The apparatus may include: means for transmitting an indication to switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein the at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0028] In some aspects, a non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a base station, cause the base station to: transmit configuration information including information identifying one or more sleep groups of a PDCCH search space set, the one or more sleep groups of the PDCCH search space set including one or more PDCCH search space sets to be processed at least in part based on the received configuration information. When executed by one or more processors of the base station, the instructions cause the base station to: transmit an indication to switch from a first group of PDCCH search space sets to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein the at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0029] In some aspects, a base station configured for wireless communication includes: a memory and one or more processors coupled to the memory, the one or more processors being configured to: transmit configuration information including information identifying one or more sleep groups of a PDCCH search space set that includes one or more PDCCH search space sets to be processed. The one or more processors may be configured to: transmit an indication to switch from a first group of PDCCH search space sets to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein the at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0030] The aspects generally include, as substantially described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transient computer-readable media, user equipment, base stations, wireless communication equipment, and / or processing systems.

[0031] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described thereafter. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims. Brief description of the attached diagram

[0033] To gain a more detailed understanding of the features described above in this disclosure, reference can be made to various aspects of the above brief overview, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.

[0034] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0035] Figure 2 This is a diagram illustrating an example of communication between a base station and a user equipment (UE) in a wireless network according to this disclosure.

[0036] Figure 3 This is a diagram illustrating an example resource structure for wireless communication according to this disclosure.

[0037] Figure 4 This is a diagram illustrating an example of dynamic switching between search space clusters according to this disclosure.

[0038] Figure 5 This is a diagram illustrating an example of switching a search space cluster for monitoring hibernation according to this disclosure.

[0039] Figure 6 This is a diagram illustrating an example of switching between multiple search space clusters according to this disclosure.

[0040] Figure 7 This is a diagram illustrating an example procedure performed by a UE according to this disclosure.

[0041] Figure 8 This is a diagram illustrating an example process performed by a base station according to this disclosure.

[0042] Figure 9-10 This is a block diagram of an example device for wireless communication according to the present disclosure.

[0043] Figure 11 This is a diagram illustrating an example procedure performed by a UE according to this disclosure.

[0044] Figure 12 This is a block diagram of an example device for wireless communication according to the present disclosure.

[0045] Figure 13 This is a diagram illustrating a method for PDCCH skipping based on a PDCCH search space cluster, according to this disclosure.

[0046] Figure 14This is a diagram illustrating another method for PDCCH skipping based on PDCCH search space cluster switching, according to this disclosure.

[0047] Figure 15 This is a diagram illustrating an example of PDCCH skipping based on PDCCH search space cluster switching according to this disclosure.

[0048] Figure 16 This is a diagram illustrating another example of PDCCH skipping based on PDCCH search space cluster switching according to this disclosure.

[0049] Figure 17 This is a block diagram illustrating the design of a UE configured according to this disclosure.

[0050] Figure 18 This is a block diagram illustrating the design of a base station configured according to this disclosure.

[0051] Detailed description

[0052] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0053] Several aspects of a telecommunications system will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0054] It should be noted that although the aspects herein may be described using terms commonly associated with 5G or NR radio access technology (RAT), the aspects of this disclosure may be applied to other RATs (such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G)) or other networks (such as Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, Single Carrier FDMA (SC-FDMA) networks, LTE networks or GSM networks).

[0055] CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA) and CDMA2000. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards.

[0056] TDMA networks can implement radio technologies such as the Global System for Mobile Communications (GSM). The 3rd Generation Partnership Project (3GPP) defines the standard for the Radio Access Network (RAN) (also referred to as GERAN) for GSM EDGE (Enhanced Data Rate GSM Evolution). GERAN is the radio component of GSM / EDGE along with the network that connects base stations (e.g., Ater and Abis interfaces) to base station controllers (A interface, etc.). The radio access network represents the component of the GSM network through which telephone calls and packet data are routed from the Public Switched Telephone Network (PSTN) and the Internet to the subscriber's handset (also called user terminal or user equipment (UE)) and from the subscriber's handset to the PSTN and the Internet. A mobile phone operator's network may include one or more GERANs, which may be coupled to a UTRA network (UTRAN) in the case of UMTS / GSM networks. Additionally, the operator's network may also include one or more LTE networks, or one or more other networks. Different network types may use different radio access technologies (RATs) and RANs.

[0057] OFDMA networks can implement radio technologies such as Evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, and flash-OFDM. UTRA, E-UTRA, and GSM are part of the Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a UMTS version using E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents from an organization called the 3rd Generation Partnership Project (3GPP), while cdma2000 is described in documents from an organization called 3rd Generation Partnership Project 2 (3GPP2). These various radio technologies and standards are known or under development. For example, 3GPP is a collaboration between various telecommunications association groups that aims to define globally applicable third-generation (3G) mobile phone specifications. 3GPP LTE is a 3GPP project aimed at improving the UMTS mobile phone standard. 3GPP defines specifications for next-generation mobile networks, mobile systems, and mobile devices. This disclosure may refer to LTE, 4G, or 5G NR technologies to describe certain aspects; however, the description is not intended to be limited to any particular technology or application, and one or more aspects described with reference to one technology may be understood to be applicable to another technology. Additionally, one or more aspects of this disclosure may relate to shared access to radio spectrum between networks using different radio access technologies or radio air interfaces.

[0058] 5G networks envision a variety of deployments, spectrums, services, and devices that can be implemented using a unified OFDM-based air interface. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to scale to provide coverage for: (1) ultra-high density (e.g., approximately 1 M nodes / km) 2 (1) A massive Internet of Things (IoT) with ultra-low complexity (e.g., approximately tens of bits per second), ultra-low energy consumption (e.g., approximately 10+ years of battery life), and deep coverage capable of reaching challenging locations; (2) A massive Internet of Things (IoT) with robust security (to protect sensitive personal, financial, or confidential information), ultra-high reliability (e.g., approximately 99.9999% reliability), ultra-low latency (e.g., approximately 1 millisecond (ms)), and mission-critical control for users with a wide range of mobility or lack of mobility; and (3) Enhanced mobile broadband, including extremely high capacity (e.g., approximately 10 Tbps / km). 2 Extreme data rates (e.g., multi-Gbps rates, 100+Mbps user experience rates), and deep insights with advanced discovery and optimization.

[0059] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc., or may include elements thereof. The wireless network 100 may include several base stations 110 (shown as BS110a, BS110b, BS110c, and BS110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, B-node, gNB, 5G B-node (NB), access point, or transmit / receive point (TRP). Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0060] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UEs with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS used for macrocells may be referred to as a macro BS. A BS used for picocells may be referred to as a pico BS. A BS used for femtocells may be referred to as a femto BS or a home BS. Figure 1 In the example shown, BS110a can be a macro BS for macro cell 102a, BS110b can be a pico BS for pico cell 102b, and BS110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “B node,” “5G NB,” and “cell” are used interchangeably herein.

[0061] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections or virtual networks, using any suitable transport network).

[0062] The wireless network 100 may also include a relay station. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or a UE) and transmitting those data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay BS110d can communicate with macro BS110a and UE 120d to facilitate communication between BS110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, or relay.

[0063] Wireless network 100 can be a heterogeneous network comprising different types of BSs (such as macro BSs, pico BSs, femto BSs, and / or relay BSs). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0064] Network controller 130 can be coupled to a set of Base Stations (BSs) and can provide coordination and control over these BSs. Network controller 130 can communicate with each BS via backhaul. These BSs can also communicate with each other directly or indirectly via wireless or wired backhaul.

[0065] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0066] Some UEs may be considered machine-type communication (MTC) devices or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes may provide connectivity to or to a network (e.g., a wide area network, such as the Internet or a cellular network) via wired or wireless communication links, for example. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included within a housing that houses components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0067] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as radio technology and / or air interface. A frequency can also be referred to as a carrier and / or frequency channel. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0068] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this scenario, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as performed by base station 110.

[0069] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) and / or an operating band with a second frequency range (FR2), where the first frequency range (FR1) spans from 410 MHz to 7.125 GHz and the second frequency range (FR2) spans from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz band." Similarly, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU), FR2 is often referred to as the "millimeter wave" band. Therefore, unless otherwise stated, it should be understood that, if used herein, the term "sub-6GHz," etc., can broadly refer to frequencies less than 6GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125GHz). Similarly, unless otherwise stated, it should be understood that, if used herein, the term "millimeter wave," etc., can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25GHz). It is conceivable that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0070] 5G NR devices, networks, and systems can utilize optimized OFDM-based waveform characteristics. These characteristics can include: scalable parameter design and transmission time intervals (TTI); a shared, flexible framework for efficiently multiplexing services and features using dynamic low-latency time-division duplex (TDD) or frequency-division duplex (FDD) designs; and advanced radio technologies such as massive MIMO, robust mmWave transport, advanced channel coding, and device-centric mobility. The scalability of parameter design in 5G NR (and the scaling of subcarrier spacing) can efficiently address the operation of diverse services across diverse spectrum and deployments. For example, in various outdoor and macro coverage deployments implemented with less than 3 GHz FDD or TDD, subcarrier spacing can occur at 15 kHz over bandwidths such as 1, 5, 10, and 20 MHz. For other various outdoor and small cell coverage deployments with greater than 3 GHz TDD, subcarrier spacing can occur at 30 kHz over an 80 / 100 MHz bandwidth. For various other indoor broadband implementations, by using TDD in the unlicensed portion of the 5 GHz band, the subcarrier spacing can occur at 60 kHz over a 160 MHz bandwidth. Finally, for various deployments transmitting mmWave components under TDD at 28 GHz, the subcarrier spacing can occur at 120 kHz over a 500 MHz bandwidth.

[0071] 5G NR's scalable parameter design enables scalable TTIs to meet various latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmissions to begin at symbol boundaries. 5G NR also envisions a self-contained integrated subframe design that incorporates uplink or downlink scheduling information, data, and acknowledgments within the same subframe. Self-contained integrated subframes support communication in unlicensed or contention-based shared spectrum and support adaptive uplink or downlink that can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current traffic needs.

[0072] As indicated above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0073] Figure 2 This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to this disclosure. The base station 110 may be equipped with T antennas 234a to 234t, while the UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.

[0074] At base station 110, transmit processor 220 can receive data destined for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, higher-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS), demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively.

[0075] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) these detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some respects, one or more components of the UE 120 may be included in the housing 284.

[0076] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0077] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or be included therein, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include elements coupled to one or more transmission and / or reception components (such as...). Figure 2 One or more antenna elements (one or more components).

[0078] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded by TX MIMO processor 266, where applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 254) of UE 120 may be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receiver processors 258, transmitter processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 4-18 (As described).

[0079] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include (e.g.) antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receiver processors 238, transmitter processors 220, and / or any combination of TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 4-18 (As described).

[0080] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may perform one or more techniques associated with switching the search space cluster for monitoring hibernation, as described in more detail elsewhere in this document. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component that can execute or direct, for example Figure 7 The process 700 Figure 8 The process 800 Figure 11 Process 1100 Figure 13 Process 1300 Figure 14 The operation of process 1400 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include: a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120 (e.g., direct execution, or execution after compilation, transformation, and / or interpretation), the one or more processors, UE 120, and / or base station 110 may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 7 The process 700 Figure 8 The process 800 Figure 11 Process 1100 Figure 13 Process 1300 Figure 14 The process 1400, and / or other processes as described herein. In some respects, the execution instructions may include run instructions, translate instructions, compile instructions, and / or interpret instructions, etc.

[0081] In some aspects, UE 120 includes: means for switching from a first group of a search space set for monitoring the physical downlink control channel (PDCCH) to a dormant group of the search space set in a first carrier; and / or means for suppressing monitoring of the PDCCH at least in part based on the switch to the dormant group. Means for UE 120 to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TXMIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0082] In some aspects, UE 120 includes: means for receiving a handover rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group at least in part based on determining that one or more conditions satisfy the handover rule.

[0083] In some aspects, UE 120 includes means for switching from a dormant group to a non-dormant group based at least in part on receiving an instruction to switch to a non-dormant group.

[0084] In some aspects, UE 120 includes means for switching from a dormant group to a non-dormant group in a first carrier, at least in part based on the expiration of a dormant timer.

[0085] In some aspects, UE 120 includes: means for switching from a dormant group to a non-dormant group based at least in part on determining that communication activity in a first carrier meets an activity threshold, wherein the non-dormant group is one of a designated search space cluster, a previous search space cluster, or a default search space cluster.

[0086] In some aspects, base station 110 includes: means for determining that a UE will switch from a first group of a search space set for monitoring the PDCCH to a dormant group of the search space set in a first carrier; and / or means for transmitting an indication to the UE to switch to the dormant group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the dormant group. Means for base station 110 to perform the operations described herein may include, for example, one or more of a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0087] In some aspects, base station 110 includes means for transmitting to the UE a configuration specifying that the UE will switch to a dormant group at least in part based on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0088] In some aspects, base station 110 includes means for transmitting to the UE a handover rule for switching to a hibernation group, wherein the handover rule specifies that the UE will switch to a hibernation group at least in part based on determining that one or more conditions satisfy the handover rule.

[0089] In some aspects, base station 110 includes means for transmitting to the UE an indication to switch from a dormant group to a non-dormant group in a first carrier.

[0090] In some aspects, base station 110 includes means for transmitting the value of a sleep timer to the UE, wherein the UE will switch from a sleep group to a non-sleep group at least in part based on the expiration of the sleep timer.

[0091] In some aspects, UE 120 includes: means for switching from a first group of a search space set for monitoring PDCCH to a first non-dormant group of the search space set in a first carrier, wherein the UE is restricted to switching from the first group to a dormant group of the search space set in the first carrier; means for switching from the first non-dormant group to a dormant group; and / or means for suppressing monitoring of the PDCCH at least in part based on the switch to a dormant group. Means for UE 120 to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TXMIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0092] In some aspects, UE 120 includes: means for receiving configuration information including information identifying one or more dormant groups of a PDCCH search space set; means for switching from a first group of the PDCCH search space set to at least one dormant group of the identified one or more dormant groups of the PDCCH search space set; and / or means for processing one or more PDCCH search space sets in at least one dormant group of the PDCCH search space set based at least in part on the received configuration information.

[0093] In some aspects, base station 110 includes: means for transmitting configuration information including information identifying one or more sleep groups of a PDCCH search space set, the one or more sleep groups of the PDCCH search space set including one or more PDCCH search space sets to be processed at least in part based on the received configuration information; and means for transmitting an indication to switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0094] although Figure 2 The boxes in the diagram are interpreted as different components, but the functions described above with respect to these boxes can be implemented using a single hardware component, software component, or combination of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by controller / processor 280 or under the control of controller / processor 280.

[0095] As indicated above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0096] Figure 3 This is a diagram illustrating an example resource structure 300 for wireless communication according to the present disclosure. Resource structure 300 shows examples of various resource groups described herein. As shown, resource structure 300 may include subframes 305. Subframes 305 may include multiple time slots 310. Although resource structure 300 is shown as including 2 time slots per subframe, different numbers of time slots may be included in a subframe (e.g., 4 time slots, 8 time slots, 16 time slots, 32 time slots). In some aspects, different types of transmission time intervals (TTIs) may be used in addition to subframes and / or time slots. Time slots 310 may include multiple symbols 315, such as 14 symbols per time slot.

[0097] The potential control region of time slot 310 may be referred to as a control resource set (CORESET) 320 and may be configured to support efficient use of resources (such as by flexibly configuring or reconfiguring the resources of CORESET 320 for one or more physical downlink control channels (PDCCH) and / or one or more physical downlink shared channels (PDSCH)). In some aspects, CORESET 320 may occupy the first symbol 315 of time slot 310, the first two symbols 315 of time slot 310, or the first three symbols 315 of time slot 310. Thus, CORESET 320 may include multiple resource blocks (RBs) in the frequency domain and one, two, or three symbols 315 in the time domain. In 5G, the number of resources included in CORESET 320 can be flexibly configured (e.g., by indicating the frequency domain region (e.g., number of resource blocks) and / or time domain region (e.g., number of symbols) of CORESET 320 through the use of Radio Resource Control (RRC) signaling).

[0098] As explained, symbol 315 including CORESET 320 may include one or more control channel elements (CCEs) 325, as exemplified by two CCEs 325 spanning a portion of the system bandwidth. CCEs 325 may include downlink control information (DCI) for providing control information for wireless communication. The base station may transmit DCI during multiple CCEs 325 (as shown), where the number of CCEs 325 used for DCI transmission represents the aggregation level (AL) used by the BS for DCI transmission. Figure 3The example shown is clustering level two, corresponding to two CCE 325s in slot 310. In some respects, different clustering levels can be used, such as 1, 2, 4, 8, 16, etc.

[0099] Each CCE 325 may include a fixed number of resource element groups (REGs) 330, shown as six REGs 330, or may include a variable number of REGs 330. In some aspects, the number of REGs 330 included in the CCE 325 may be specified by the REG bundle size. A REG 330 may include a resource block, which may include 12 resource elements (REs) 335 within symbol 315. A resource element 335 may occupy one subcarrier in the frequency domain and one OFDM symbol in the time domain.

[0100] The search space may include all possible locations where the PDCCH might be located (e.g., in time and / or frequency). CORESET 320 may include one or more search spaces, such as UE-specific search spaces, group-shared search spaces, and / or shared search spaces. A search space may indicate the set of CCE locations where the UE can find PDCCHs that can potentially be used to transmit control information to the UE. Possible locations of the PDCCH may depend on whether the PDCCH is a UE-specific PDCCH (e.g., for a single UE) or a group-shared PDCCH (e.g., for multiple UEs), the aggregation level being used, etc. Possible locations of the PDCCH (e.g., in time and / or frequency) may be referred to as PDCCH candidates, and the set of all possible PDCCH locations at the aggregation level may be referred to as the search space. For example, the set of all possible PDCCH locations for a specific UE may be referred to as a UE-specific search space. Similarly, the set of all possible PDCCH locations across all UEs may be referred to as a shared search space. The set of all possible PDCCH locations for a specific group of UEs may be referred to as a group-shared search space. One or more search spaces across aggregation levels may be referred to as a search space set. The UE can monitor the PDCCH in a search space cluster.

[0101] As indicated above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0102] Figure 4 This is a diagram illustrating example 400 of the dynamic switching between groups of the search space set according to this disclosure.

[0103] The UE can dynamically switch between groups in the search space set to quickly access the channel in unlicensed bands and save power in licensed bands. For example, the UE can monitor the PDCCH in the first group. If no specific group is specified, the first group can be the default group monitored by the UE (e.g., group 1 in example 400). The default group can be the group that the UE monitors when a timer for monitoring another group expires. In unlicensed bands, the default group can be the group that the UE monitors outside of the Channel Occupied Time (COT). In unlicensed bands, the default group may involve frequent PDCCH monitoring, such as one or more monitoring opportunities per time slot, where each opportunity may be, for example, two symbols. Frequent PDCCH monitoring provides more transmission opportunities after channel access via the Listen-Before-Speak (LBT) protocol, which reduces the risk of another contending transmitter node losing medium. In licensed bands, the default group may involve less frequent PDCCH monitoring, such as monitoring once every n time slots, or less than one monitoring opportunity per time slot. The UE can use less frequent PDCCH monitoring to reduce power consumption.

[0104] Group 2 in Example 400 might involve less frequent PDCCH monitoring in unlicensed bands and could be used during COT. On the other hand, Group 2 might involve more frequent PDCCH monitoring in licensed bands to achieve higher performance. Higher performance could include higher throughput and / or lower latency. For higher performance, the UE could monitor more frequently per time slot. The UE could switch to Group 2 when there is heavy traffic and maintain or switch to Group 1 when there is less traffic. The UE could switch groups based on the displayed indication in the DCI or Media Access Control Element (MAC CE). Dynamic group handover provides flexibility to handle heavy traffic and saves power.

[0105] With this flexibility, the groups within the spatial search set may differ. For example, one group might involve fewer PDCCH surveillances than another. However, there is no group that doesn't perform PDCCH surveillance, thus putting PDCCH surveillance in hibernation. In some cases, such surveillance hibernation would be suitable for saving significant power. One solution for surveillance hibernation might involve skipping PDCCH surveillance across multiple time slots, but this solution would use a different mechanism than group handover. Adding a skipping mechanism would increase the UE's processing resources. The skipping mechanism might also involve additional signaling, which would further consume signaling resources.

[0106] Based on the aspects described herein, the UE can switch to a dormant group of the search space set, where no PDCCH monitoring will occur. The dormant group can be an empty group or include a dummy search space set. For example, a dummy search space set may have very high periodicity or infinite periodicity, such that the UE may never monitor the search space set. A dummy search space set may have zero PDCCH candidates. An empty group may not have a search space set or may be configured with infinite periodicity or zero PDCCH candidates.

[0107] The UE can receive an explicit trigger to switch to a hibernation group, or it can act on an implicit trigger. Switching to a hibernation group provides power-saving flexibility while saving power, processing resources, and signaling resources that would otherwise be consumed by additional mechanisms used to bypass PDCCH monitoring.

[0108] As indicated above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0109] Figure 5 This is a diagram illustrating an example 500 of switching a search space cluster for monitoring hibernation according to this disclosure. (See diagram 500 for example.) Figure 5 As shown, base station 110 and UE 120 can communicate with each other on the uplink or downlink.

[0110] BS 510 can determine that UE 520 will cease monitoring the PDCCH. This could be due to a lack of activity on the PDCCH, UE capabilities, traffic conditions, application information, the location of UE 520, and / or other status information about UE 520. As indicated by reference numeral 530, BS 510 can determine that UE 520 will switch from a first group of the search space set used for monitoring the PDCCH to a dormant group of the search space set. The first group can be considered a non-dormant group. The dormant group can be an empty group of the search space set, or it may include a dummy search space set. The dummy search space set can have high (e.g., infinite) periodicity and / or zero PDCCH candidates. The dummy search space set may not be included in the budget of the search space set, which can be, for example, at most ten search space sets per bandwidth portion. Multiple dormant groups and / or multiple non-dormant groups may exist.

[0111] As indicated by reference numeral 535, BS 510 can transmit an indication to switch from the first group to a dormant group without PDCCH monitoring. For example, BS 510 can transmit the switching indication in DCI format 2_0 (Slot Format Indication (SLI)), DCI format 2_6 (Wake-up Signal (WUS)), or DCI with cyclic redundancy check scrambled by a Power Saving Radio Network Temporary Identifier (DCP), a non-backoff DCI format (e.g., 0_1, 0_2, 1_1, and 1_2), or a new dedicated DCI format. The switching indication can be a value in the Search Space Cluster Indication field of the DCI. BS 510 can also transmit the switching indication in the MAC CE. This indication can be an index of the dormant group, an inactive timer value, or another value specific to dynamic group switching.

[0112] In some respects, UE 520 may switch from the first group to the dormant group only if the first group is from one or more of the designated non-dormant groups. For example, UE 520 may receive an instruction to switch to the dormant group only in the designated non-dormant groups.

[0113] Alternatively, in some respects, UE 520 is configured with a first group (default group) and a first non-sleep group. While both the first group and the first non-sleep group can be non-sleep groups, the first non-sleep group is designated to distinguish it from which UE 520 can switch to a sleep group. That is, UE 520 may be restricted from switching from the first group to the sleep group. Instead, UE 520 switches from the first group to the first non-sleep group, and then subsequently switches from the first non-sleep group to the sleep group. This alternative scheme combines... Figure 6 To describe.

[0114] Alternatively or additionally, in some aspects, BS 510 may configure UE 520 to act on implicit triggering. For example, BS 510 may configure UE 520 to switch to a dormant group based at least in part on the detection of little or no activity on the PDCCH. For example, UE 520 may switch to a dormant group if PDCCH activity (e.g., traffic volume, traffic frequency) meets an activity threshold (e.g., a minimum activity threshold). In some aspects, BS 510 may configure one or more handover rules for UE 520. UE 520 may switch groups based at least in part on one or more conditions satisfying the handover rules. These conditions may include traffic activity, UE 520's power state, traffic type, application-related information, UE 520's location, the history or state of other groups, and / or the state on the PDCCH. The handover rules may be geared towards power saving or higher performance.

[0115] In some respects, UE 520 may switch to a dormant group upon the expiration of a timer. For example, UE 520 may switch to a dormant group if inactivity on the PDCCH exceeds the timer duration, or if the time duration between active periods meets a duration threshold. In some respects, UE 520 may switch to a dormant group after the COT ends if it is operating in an unlicensed frequency band.

[0116] As shown by reference numeral 540, UE 520 can switch from the first group to the dormant group. Accordingly, UE 520 can suppress monitoring PDCCH at least in part based on the switch to the dormant group, as shown by reference numeral 545. In this way, UE 520 can save power when using a more typical group handover mechanism.

[0117] As indicated above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0118] Figure 6 These are illustrations of examples 600 and 602 illustrating the switching between multiple groups in the search space set according to this disclosure.

[0119] Example 600 illustrates a default group (Group 0), a first non-dormant group (Group 1), and a dormant group (Group 2). The UE can switch from Group 0 to Group 1 via an indication in the DCI, where both groups are non-dormant. The UE can switch to Group 2, which is a dormant group, via DCI, MAC CE, or implicit triggering.

[0120] In some respects, the UE can switch from a dormant group to a non-dormant group. A group (such as group 1 in example 600) can be designated as the first non-dormant group to which the UE can switch. If no first non-dormant group is designated, the UE can switch to the previous group or the default group (such as group 0).

[0121] In some respects, the UE can explicitly trigger the handover from the sleep cluster. Because the UE does not monitor the PDCCH while in sleep mode, the explicit trigger can be an indication in the MAC CE. If SPS is configured, the MAC CE can be received on semi-persistent scheduling (SPS) resources within the same carrier. If carrier aggregation is configured, the UE can receive indications in the MAC CE or the search space cluster indication field in the DCI on different carriers. For example, the UE can receive a cross-carrier search space cluster indication. This indication can be carrier-specific or applicable to multiple carriers.

[0122] In some respects, the UE can receive an indication to switch to a non-dormant group (e.g., a first non-dormant group) in a field value of the DCI, where the DCI is monitored within a shared search space set regardless of whether the UE is in a dormant or non-dormant group. For example, if the UE selects a dormant group and switches to it, the UE can still monitor the shared search space set even if it is in a dormant group. In other words, the UE does not monitor the PDCCH in any other way, but can still receive an indication to switch to a non-dormant group.

[0123] Alternatively or additionally, in some aspects, the UE may switch from a dormant group to a non-dormant group (e.g., a first non-dormant group) based at least in part on an implicit trigger. The implicit trigger may be a dormant timer. For example, a dormant timer value may be configured for the UE via an RRC message. The UE may switch from a dormant group to a non-dormant group upon the expiration of the dormant timer. The UE may receive the dormant timer value in a configuration message or in an indication to switch to a dormant group.

[0124] The sleep timer value can be a time duration (e.g., milliseconds) or a number of time slots. If DRX is configured, the sleep timer value can also be the number of discontinuous reception (DRX) cycles to keep the UE in a sleep group until the start of the next nth DRX cycle. If multiple sleep groups exist, the sleep timer value may differ between sleep groups and may be specific to a sleep group.

[0125] In some respects, implicit triggering may involve sensing communication activity in a carrier. For example, if the activity detected in a carrier meets an activity threshold (e.g., minimum energy, preamble detection), the UE can switch from a dormant group to a non-dormant group. The activity threshold and sensing timing can be specified through configuration. By switching to and from a dormant group, the UE can dynamically choose when to conserve power and when to improve monitoring performance.

[0126] Example 602 illustrates a first group or default group (group 0), a first non-dormant group (group 1), and a dormant group (group 2). Currently, the UE can switch from group 0 to group 1 or group 2 via an indication in the DCI. In an error scenario, the UE may not receive or may misdetect the DCI from the base station indicating a switch from group 0 to group 2, and the UE may remain in group 0. The base station may expect the UE to switch from group 2 to group 1 when the timer expires, but the UE will be in group 0 instead of group 1. There will be some ambiguity between the base station and the UE regarding whether the UE is in group 0 or group 1. Therefore, in some respects, the UE can switch from group 1 to group 2, but may be restricted to switching from group 0 to group 2. As shown in Example 602, there is no DCI indicating a switch from group 0 to group 2. That is, if the UE is configured with a dormant group and a first non-dormant group, the UE may be restricted to switching only from the first non-dormant group to the dormant group.

[0127] By restricting handover from group 0 to group 2, the UE and the base station can save signaling resources that would otherwise be wasted due to the persistent lack of group synchronization between the UE and the BS. For example, the UE could handover from group 0 to group 1, and then from group 1 to group 2. The UE could then handover from group 2 to group 1 when the timer expires. On the other hand, if the UE is in group 1 but misses the DCI indicating a handover from group 1 to group 2, the UE can remain in group 1. Ultimately, the UE and the base station may be aligned regarding the expected group alignment of the UE being in group 1. This eliminates any confusion about whether the UE is in group 0 or group 2. In other words, by removing the indication of a handover from group 0 to group 2, if the UE misses the DCI indicating a handover, the UE and the base station can more quickly realign the expected group alignment.

[0128] As indicated above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0129] Figure 7 This is a diagram illustrating an example procedure 700 performed by a UE according to this disclosure. Example procedure 700 is where the UE (e.g., Figure 1-2 The UE 120 depicted in the text Figure 5 The example depicted is a UE 520 performing operations associated with switching a search space cluster used to monitor hibernation.

[0130] like Figure 7 As shown, in some aspects, process 700 may include: switching from a first group of the search space set used for monitoring the PDCCH to a sleep group of the search space set in the first carrier (box 710). For example, the UE (e.g., using...) Figure 9The monitoring component 908 described herein can switch from a first group of the search space set used for monitoring the PDCCH to a dormant group of the search space set in the first carrier, as described above.

[0131] As in Figure 7 As further illustrated, in some aspects, process 700 may include: suppressing monitoring of the PDCCH (box 720) at least in part based on switching to a hibernation group. For example, the UE (e.g., using...) Figure 9 The monitoring component 908 described herein may suppress monitoring of the PDCCH, at least in part, based on switching to a hibernation group, as described above.

[0132] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0133] In the first respect, a dormant group is an empty group that does not have a search space set.

[0134] In the second aspect, either alone or in combination with the first aspect, the dormant group comprises a set of dummy search spaces having infinite periodicity or zero PDCCH candidates.

[0135] In the third aspect, switching to a dormant group, either alone or in combination with one or more of the first and second aspects, includes: switching to a dormant group based at least in part on receiving an instruction to switch to a dormant group to refrain from PDCCH monitoring.

[0136] In the fourth aspect, receiving an instruction to switch to a dormant group, either alone or in combination with one or more of the first to third aspects, includes receiving a value in the search space cluster indication field in the DCI.

[0137] In the fifth aspect, receiving an instruction to switch to a hibernation group, either alone or in combination with one or more of the first to fourth aspects, includes receiving the instruction in the MAC CE.

[0138] In the sixth aspect, receiving an instruction to switch to a dormant group, either alone or in combination with one or more of the first to fifth aspects, includes receiving the instruction only in the designated non-dormant group.

[0139] In the seventh aspect, switching to a dormant group, either alone or in combination with one or more of the first to sixth aspects, includes: switching to a dormant group based at least in part on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0140] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 700 includes: receiving a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes:

[0141] The switch to the hibernation group is based at least in part on determining that one or more conditions satisfy the switching rule.

[0142] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 700 includes: switching from a dormant group to a non-dormant group in a first carrier based at least in part on receiving an instruction to switch to a non-dormant group.

[0143] In the tenth aspect, receiving an instruction to switch to a non-dormant group, either alone or in combination with one or more of the first to ninth aspects, includes receiving the instruction in the MAC CE on the SPS resource.

[0144] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects,

[0145] Receiving an instruction to switch to a non-sleep group includes receiving the instruction in a field on a specific carrier other than the first carrier among multiple carriers.

[0146] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects,

[0147] Receiving an instruction to switch to a non-dormant group includes receiving the value of a field in the DCI, where the monitored shared search space is selected independently of the search space cluster.

[0148] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects,

[0149] The process 700 includes: switching from a dormant group to a non-dormant group based at least in part on the expiration of a dormant timer, wherein the non-dormant group is one of the specified search space cluster, the previous search space cluster, or the default search space cluster.

[0150] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects,

[0151] The expiration of this hibernation timer is based, at least in part, on the value of the hibernation timer received in the configuration or an indication to switch to a hibernation group.

[0152] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects,

[0153] The expiration of this sleep timer is based, in part, on one or more of the following: time duration, number of time slots, or number of DRX cycles.

[0154] In the sixteenth aspect, alone or in combination with one or more of aspects one through fifteen,

[0155] The process 700 includes: switching from a dormant group to a non-dormant group based at least in part on determining that the communication activity in the first carrier meets an activity threshold.

[0156] although Figure 7 An example box of process 700 is shown, but in some respects, process 700 may include... Figure 7 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 700 can be executed in parallel.

[0157] Figure 8 This is a diagram illustrating an example process 800 performed, for example, by a base station according to this disclosure. Example process 800 is where a base station (e.g., Figure 1-2 The base station 110 depicted in the text Figure 5 The example described in the document is of a BS 510 performing operations associated with switching a search space cluster used to monitor hibernation.

[0158] like Figure 8 As shown, in some aspects, process 800 may include: determining that the UE will switch from a first group of the search space set used for monitoring the PDCCH to a sleep group of the search space set in the first carrier (box 810). For example, the base station (e.g., using...) Figure 10 The determining component 1008 described herein can determine that the UE will switch from the first group of the search space set used for monitoring the PDCCH to the sleep group of the search space set in the first carrier, as described above.

[0159] As in Figure 8 As further illustrated, in some aspects, process 800 may include: transmitting an indication to the UE to switch to a hibernation group, such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the hibernation group (box 820). For example, a base station (e.g., using...) Figure 10 The transmission component 1004 described herein can transmit an instruction to the UE to switch to a hibernation group, such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the hibernation group, as described above.

[0160] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0161] In the first respect, a dormant group is an empty group that does not have a search space set.

[0162] In the second aspect, either alone or in combination with the first aspect, the dormant group comprises a set of dummy search spaces having infinite periodicity or zero PDCCH candidates.

[0163] In the third aspect, either alone or in combination with one or more of the first and second aspects, transmitting an indication to switch to a dormant group includes transmitting a value in the search space cluster indication field in the DCI.

[0164] In the fourth aspect, transmitting an instruction to switch to a hibernation group, either alone or in combination with one or more of the first to third aspects, includes transmitting the instruction in the MAC CE.

[0165] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 800 includes: transmitting to the UE a configuration specifying that the UE will switch to a dormant group at least in part based on determining that inactivity on the PDCCH meets an inactivity threshold.

[0166] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 800 includes: transmitting to the UE a handover rule for handing over to a hibernation group, wherein the handover rule specifies that the UE will hand over to the hibernation group at least in part based on determining that one or more conditions satisfy the handover rule.

[0167] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 800 includes: transmitting to the UE an indication to switch from a dormant group to a non-dormant group in the first carrier.

[0168] In the eighth aspect, transmitting an instruction to switch to a non-sleeping group, either alone or in combination with one or more of the first to seventh aspects, includes transmitting the instruction in a MAC CE on a semi-persistent scheduling resource.

[0169] In the ninth aspect, transmitting an indication to switch to a non-sleeping group, either alone or in combination with one or more of the first to eighth aspects, includes transmitting the indication in a field on a specific carrier other than the first carrier among a plurality of carriers.

[0170] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, transmitting an instruction to switch to a non-dormant group includes transmitting the value of a field in the DCI, which is selected independently of the search space cluster.

[0171] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, transmitting an instruction to switch to a dormant group includes transmitting the instruction only in the designated non-dormant group. In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects,

[0172] The process 800 includes: transmitting a value of a sleep timer to the UE, wherein the UE will switch from a sleep group to a non-sleep group at least in part based on the expiration of the sleep timer, and wherein the non-sleep group is one of a specified search space cluster, a previous search space cluster, or a default search space cluster.

[0173] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects,

[0174] Process 800 includes transmitting the value of the hibernation timer in the configuration or instruction to switch to a hibernation group.

[0175] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects,

[0176] The expiration of this sleep timer is based, in part, on one or more of the following: time duration, number of time slots, or number of DRX cycles.

[0177] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects,

[0178] The value of this hibernation timer is specific to the hibernation group.

[0179] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include... Figure 8 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 800 can be executed in parallel.

[0180] Figure 9 This is a block diagram of an example device 900 for wireless communication. Device 900 may be a UE, or a UE may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 may use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device). As further shown, device 900 may include a monitoring component 908 and other examples.

[0181] In some respects, device 900 can be configured to perform the functions described herein. Figure 1-6 The described one or more operations. Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 The process 700. In some aspects, the apparatus 900 and / or Figure 9 One or more components shown may include the above combination Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 9 One or more components shown can be combined as described above. Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0182] Receiver 902 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 906. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 906. In some aspects, receiver 902 may include combinations of the above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0183] The transmission component 904 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 906. In some aspects, one or more other components of the device 906 can generate communications and provide the generated communications to the transmission component 904 for transmission to the device 906. In some aspects, the transmission component 904 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to the device 906. In some aspects, the transmission component 904 can include combinations of the above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 904 may be co-located with the receive component 902 in a transceiver.

[0184] The monitoring component 908 can switch from a first group of the search space set used for monitoring the PDCCH to a dormant group of the search space set. The monitoring component 908 can suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0185] The receiving component 902 may receive a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group based at least in part on determining that one or more conditions satisfy the switching rule.

[0186] The monitoring component 908 may switch from a dormant group to a non-dormant group in the first carrier, at least in part, based on receiving an instruction to switch to a non-dormant group. In some aspects, the monitoring component 908 may switch from the first group to the dormant group only if the first group is from one or more designated non-dormant groups. For example, the monitoring component 908 may receive an instruction to switch to the dormant group only in a designated non-dormant group.

[0187] The monitoring component 908 can switch from a hibernation group to a non-hibernation group, at least in part, based on the expiration of a hibernation timer, wherein the non-hibernation group is one of the specified search space cluster, the previous search space cluster, or the default search space cluster.

[0188] The monitoring component 908 can switch from a dormant group to a non-dormant group, at least in part, based on determining that the communication activity in the first carrier meets an activity threshold.

[0189] Figure 9 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 9 The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The collection of components shown (e.g., one or more components) can be executed as described by Figure 9 The other set of components shown in the diagram performs one or more functions.

[0190] Figure 10 This is a block diagram of an example device 1000 for wireless communication. Device 1000 may be a base station, or a base station may include device 1000. In some aspects, device 1000 includes a receiving component 1002 and a transmitting component 1004, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1000 may use the receiving component 1006 and the transmitting component 1002 to communicate with another device 1004 (such as a UE, a base station, or another wireless communication device). As further shown, device 1000 may include a determining component 1008 and other examples.

[0191] In some respects, device 1000 can be configured to perform the functions described herein. Figure 1-6 The described one or more operations. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8The process 800. In some aspects, the device 1000 and / or Figure 10 One or more components shown may include the above combination Figure 2 One or more components of the described base station. Additional or alternative. Figure 10 One or more components shown can be combined as described above. Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0192] Receiver 1002 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1006. Receiver 1002 may provide the received communications to one or more other components of device 1000. In some aspects, receiver 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 1006. In some aspects, receiver 1002 may include combinations of the above. Figure 2 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0193] The transmission component 1004 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 1006. In some aspects, one or more other components of the device 1006 can generate communications and provide the generated communications to the transmission component 1004 for transmission to the device 1006. In some aspects, the transmission component 1004 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to the device 1006. In some aspects, the transmission component 1004 may include combinations of the above. Figure 2 The described base station includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1004 may be co-located with the receive component 1002 in a transceiver.

[0194] The determining component 1008 can determine that the UE will switch from a first group of the search space set used for monitoring the PDCCH to a sleep group of the search space set in the first carrier. The transmitting component 1004 can transmit an indication to the UE to switch to the sleep group, such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the sleep group.

[0195] The transmission component 1004 may transmit to the UE a configuration specifying that the UE will switch to a dormant group at least in part based on determining that the communication inactivity in the first carrier meets an inactivity threshold.

[0196] The transmission component 1004 may transmit to the UE a handover rule for switching to a hibernation group, wherein the handover rule specifies that the UE will switch to a hibernation group at least in part based on determining that one or more conditions satisfy the handover rule.

[0197] The transmission component 1004 can transmit an instruction to the UE to switch from a dormant group to a non-dormant group.

[0198] The transmission component 1004 may transmit the value of a sleep timer to the UE, wherein the UE will switch from a sleep group to a non-sleep group at least in part based on the expiration of the sleep timer, and wherein the non-sleep group is one of the specified search space cluster, the previous search space cluster, or the default search space cluster.

[0199] The transmission component 1004 can transmit the value of the hibernation timer in the configuration or in an instruction to switch to a hibernation group.

[0200] Figure 10 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 10 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 10 The two or more components shown can be implemented within a single component, or Figure 10 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 10 The collection of components shown (e.g., one or more components) can be executed as described by Figure 10 The other set of components shown in the diagram performs one or more functions.

[0201] Figure 11 This is a diagram illustrating an example procedure 1100 performed by a UE according to this disclosure. Example procedure 1100 is where the UE (e.g., Figure 1-2 The UE 120 depicted in the text Figure 5 The example depicted is a UE 520 performing operations associated with switching a search space cluster used to monitor hibernation.

[0202] like Figure 11 As shown, in some aspects, process 1100 may include: switching from a first group of the search space set used for monitoring the PDCCH to a non-dormant group of the search space set in the first carrier (box 1110). For example, the UE (e.g., using...) Figure 12 The monitoring component 1208 described herein can switch from a first group of the search space set used for monitoring the PDCCH to a first non-dormant group of the search space set in the first carrier, as described above. In some aspects, the UE is restricted to switching from the first group to the dormant group of the search space set in the first carrier.

[0203] As in Figure 11 As further illustrated, in some aspects, process 1100 may include: switching from a non-dormant group to a dormant group (box 1120). For example, the UE (e.g., Figure 12 The monitoring component 1208 described herein can switch from a first non-dormant group to a dormant group, as described above.

[0204] As in Figure 11 As further illustrated, in some aspects, process 1100 may include: suppressing monitoring of the PDCCH (box 1130) at least in part based on switching to a hibernation group. For example, the UE (e.g., using...) Figure 12 The monitoring component 1208 described herein may suppress monitoring of the PDCCH at least in part based on switching to a hibernation group, as described above.

[0205] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0206] In the first respect, a dormant group is an empty group that does not have a search space set.

[0207] In the second aspect, either alone or in combination with the first aspect, the dormant group comprises a set of dummy search spaces with infinite periodicity or zero PDCCH candidates.

[0208] In the third aspect, switching from a first non-dormant group to a dormant group, either alone or in combination with one or more of the first and second aspects, comprises: switching to a dormant group based at least in part on receiving an instruction to switch to a dormant group so as not to perform PDCCH monitoring.

[0209] In the fourth aspect, receiving an instruction to switch to a dormant group, either alone or in combination with one or more of the first to third aspects, includes receiving a value in the search space cluster indication field in the DCI or MAC CE.

[0210] In the fifth aspect, switching to a dormant group, either alone or in combination with one or more of the first to fourth aspects, includes: switching to a dormant group based at least in part on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0211] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 1100 includes: receiving a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group at least in part based on determining that one or more conditions satisfy the switching rule.

[0212] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1100 includes: switching from a dormant group to a first non-dormant group based at least in part on receiving an instruction to switch to a first non-dormant group.

[0213] In the eighth aspect, receiving an instruction to switch to the first non-dormant group, either alone or in combination with one or more of the first to seventh aspects, includes receiving the instruction in the MAC CE on the SPS resource.

[0214] In the ninth aspect, receiving an instruction to switch to the first non-sleeping group, either alone or in combination with one or more of the first to eighth aspects, includes receiving the instruction in a field on a specific carrier other than the first carrier among a plurality of carriers.

[0215] In the tenth aspect, receiving an instruction to switch to the first non-dormant group, either alone or in combination with one or more of the first to ninth aspects, includes receiving the value of a field in the downlink control information in a shared search space set being monitored, independent of the search space cluster selection.

[0216] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects,

[0217] Process 1100 includes: switching from a hibernation group to a first non-hibernation group based at least in part on the expiration of a hibernation timer, wherein the expiration of the hibernation timer is based at least in part on one or more of time duration, number of time slots, or number of DRX cycles.

[0218] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects,

[0219] Process 1100 includes: switching from a dormant group to a first non-dormant group based at least in part on determining that the communication activity in the first carrier meets an activity threshold.

[0220] although Figure 11 An example box of process 1100 is shown, but in some respects, process 1100 may include... Figure 11The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 1100 can be executed in parallel.

[0221] Figure 12 This is a diagram of an example device 1200 for wireless communication. Device 1200 may be a UE, or a UE may include device 1200. In some aspects, device 1200 includes a receiving component 1202 and a transmitting component 1204, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1200 may use the receiving component 1206 and the transmitting component 1202 to communicate with another device 1204 (such as a UE, a base station, or another wireless communication device). As further shown, device 1200 may include a monitoring component 1208 and other examples.

[0222] In some respects, device 1200 can be configured to perform the functions described herein. Figure 1-6 The described one or more operations. Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Figure 11 Process 1100. In some respects, apparatus 1200 and / or Figure 12 One or more components shown may include combinations Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 12 One or more components shown can be combined Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more components in the set of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of that component.

[0223] Receiver 1202 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from device 1206. Receiver 1202 may provide the received communications to one or more other components of device 1200. In some aspects, receiver 1202 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signal to one or more other components of device 1206. In some aspects, receiver 1202 may include combinations of... Figure 2 The described UE includes one or more antennas, modems, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0224] The transmission component 1204 can transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the device 1206. In some aspects, one or more other components of the device 1206 can generate communications and provide the generated communications to the transmission component 1204 for transmission to the device 1206. In some aspects, the transmission component 1204 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and can transmit the processed signals to the device 1206. In some aspects, the transmission component 1204 may include combinations of... Figure 2 The described UE includes one or more antennas, modems, demodulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1204 may be co-located with the receive component 1202 in a transceiver.

[0225] The monitoring component 1208 can switch from a first group of the search space set used for monitoring the PDCCH to a first non-dormant group of the search space set in the first carrier, wherein the UE is restricted from switching from the first group to the dormant group of the search space set in the first carrier. The monitoring component 1208 can switch from the first non-dormant group to the dormant group. The monitoring component 1208 can suppress monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0226] The receiving component 1202 may receive a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group at least in part based on determining that one or more conditions satisfy the switching rule.

[0227] The monitoring component 1208 may switch from a dormant group to a non-dormant group at least in part based on receiving an instruction to switch to a first non-dormant group. The monitoring component 1208 may also switch from a dormant group to a non-dormant group at least in part based on determining that the communication activity in the first carrier meets an activity threshold.

[0228] Figure 12 The number and arrangement of components shown are provided as an example. In practice, different arrangements may exist. Figure 12 The components shown are compared to additional components, fewer components, different components, or components arranged differently. Furthermore, Figure 12 The two or more components shown can be implemented within a single component, or Figure 12 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 12 The collection of components shown (e.g., one or more components) can be executed as described by Figure 12 The other set of components shown in the diagram performs one or more functions.

[0229] Another technique that provides flexibility in handling higher traffic volumes and saving power is PDCCH monitoring skipping. In some aspects, PDCCH monitoring skipping may involve the UE skipping PDCCH monitoring for a specific time duration. According to some aspects, the time duration during which the UE can skip PDCCH monitoring may coincide with a period of traffic inactivity. In some aspects, the base station may transmit an indication to the UE to initiate PDCCH skipping for a specific time duration. According to some aspects, along with DRX (e.g., hundreds of milliseconds), which can be used to handle large-scale traffic inactivity, PDCCH monitoring skipping can be used to handle smaller-scale traffic inactivity (e.g., several time slots or milliseconds). In some aspects, PDCCH monitoring skipping provides additional flexibility in handling higher traffic volumes and saving power.

[0230] PDCCH search space monitoring skipping and dynamic PDCCH search space monitoring switching together can provide enhanced flexibility to handle more traffic and save power. For example, in some aspects, whether the UE performs PDCCH search space monitoring skipping or PDCCH search space monitoring switching can vary depending on the characteristics of wireless communication traffic and / or operating conditions. In providing enhanced flexibility through PDCCH search space monitoring skipping and / or dynamic PDCCH search space monitoring switching, the handling of different groups of PDCCH search space sets can differ. For example, one or more groups may involve less PDCCH search space monitoring than one or more other groups. Additionally, one or more groups may not involve PDCCH search space monitoring at all (with a few exceptions), such as when those groups are skipped as part of a PDCCH search space monitoring skipping operation performed by the UE. According to some aspects, groups of PDCCH search space sets that are not monitored or are monitored less frequently can be referred to as dormant groups of PDCCH search space sets.

[0231] Various aspects of this disclosure provide techniques for skipping and / or switching using PDCCH search space monitoring, including techniques for skipping PDCCH based on PDCCH search space cluster switching. For example, a UE receives configuration information from a base station including information identifying one or more dormant groups of a PDCCH search space set. The UE can switch from a first group (e.g., a dormant or non-dormant group) of the PDCCH search space set to at least one dormant group of the identified one or more dormant groups of the PDCCH search space set. In some aspects, the base station can transmit an indication to the UE that the UE will initiate a handover. According to some aspects, the UE can process one or more PDCCH search space sets in at least one dormant group of the PDCCH search space set based at least in part on the received configuration information. In some aspects, various aspects of this disclosure provide power-saving flexibility while saving power, processing resources, and signaling resources that would otherwise be consumed without these aspects.

[0232] As an example, Figure 13 A diagram illustrating a method for PDCCH skipping based on PDCCH search space cluster switching according to this disclosure is shown. Aspects of method 1300 can be found by referring to... Figure 1-4 And various other aspects of this disclosure (such as mobile devices / UEs) as described on 15-17. For example, refer to Figure 2 The controller / processor 280 of UE 120 can control UE 120 to execute method 1300.

[0233] Figure 13 Method 1300, which can be performed by a UE (such as UE 120), is described. In block 1302, the UE (such as UE 120) can receive configuration information from a base station including information identifying one or more dormant groups of a PDCCH search space set. For example, in some aspects, the configuration information may include indications (e.g., explicit indications of one or more dormant groups of the PDCCH search space set). In some aspects, the explicit indication may be a list identifying one or more dormant groups of the PDCCH search space set. In additional aspects, the configuration information may include indications of one or more non-dormant groups of the PDCCH search space set. In some aspects, the indication of the one or more non-dormant groups may be one or more indices respectively associated with one or more non-dormant groups of the PDCCH search space set. In some aspects,

[0234] One or more dormant groups in the PDCCH search space set may be identified, at least in part, based on indications of one or more non-dormant groups in the PDCCH search space set. For example, a dormant group may be a group that is not indicated as a non-dormant group. According to some aspects, the indication of one or more non-dormant groups in the PDCCH search space set may be an implicit indication of one or more dormant groups in the PDCCH search space set.

[0235] In box 1304, the UE can switch from the first group of the PDCCH search space set to at least one sleep group of the identified sleep groups of the PDCCH search space set. In some aspects, the first group of the PDCCH search space set can be a sleep group. In additional aspects, the first group of the PDCCH search space set can be a non-sleep group.

[0236] In some aspects, the handover shown at box 1304 can be initiated by the base station. For example, the base station may determine that the UE wants to stop monitoring the PDCCH. As another example, the base station may determine that the UE will switch from a first group of the search space set used for monitoring the PDCCH to a dormant group of the search space set in the first carrier. This may be due to a lack of activity on the PDCCH, UE capabilities, traffic conditions, application information, the UE's location, and / or other state information about the UE. In some aspects, the base station may determine that the UE wants to switch from a first group of the PDCCH search space set to at least one dormant group of the PDCCH search space set. The first group may be considered a non-dormant group. The at least one dormant group may be an empty group of the search space set, or may include a dummy search space set. The dummy search space set may have high (e.g., infinite) periodicity and / or zero PDCCH candidates. The dummy search space set may not be included in the budget of the search space set, which may be, for example, at most ten search space sets per bandwidth portion. There may be multiple dormant groups and / or multiple non-dormant groups.

[0237] Depending on some aspects, the base station may transmit to the UE, and the UE may receive from the base station, an indication to switch from a first group to a dormant group. The UE may suppress monitoring of the PDCCH at least in part based on the switch to the dormant group. For example, the base station may transmit the handover indication in DCI format 2_0 (Slot Format Indication (SLI)), DCI format 2_6 (WUS, or DCI with Cyclic Redundancy Check scrambled by a Power Saving Radio Network Temporary Identifier (DCP)), a non-backoff DCI format (e.g., 0_1, 0_2, 1_1, and 1_2), or a new dedicated DCI format. The handover indication received by the UE may be a value received in the Search Space Cluster Indication field of the DCI. The base station may also transmit the handover indication to the UE in the MAC CE. This indication may be an index of the dormant group, an inactive timer value, or another value specific to dynamic group handover.

[0238] Alternatively or additionally, in some aspects, base station 510 may configure the UE to act on implicit triggering. For example, base station 510 may configure the UE to switch to a dormant group at least in part based on the detection of almost no or no activity on the PDCCH. For example, the UE may switch to a dormant group if the PDCCH activity (e.g., traffic volume, traffic frequency) meets an activity threshold (e.g., a minimum activity threshold). In some aspects, the UE may switch to a dormant group at least in part based on determining that inactivity on the PDCCH meets an inactivity threshold. The base station may transmit configuration information to the UE specifying that the UE will switch to a dormant group at least in part based on determining that inactivity on the PDCCH meets an inactivity threshold.

[0239] In some aspects, the base station may configure one or more handover rules for the UE. The UE may receive handover rules from the base station for handover to a dormant group, wherein handover to a dormant group includes: handover to the dormant group at least in part based on determining that one or more conditions satisfy the handover rules. The UE may handover to a group at least in part based on one or more conditions satisfying the handover rules. These conditions may include traffic activity, the UE's power state, traffic type, application-related information, the UE's location, the history or state of other groups, and / or conditions on the PDCCH. The handover rules may be geared towards power saving or towards higher performance.

[0240] According to some aspects, the UE can determine when to switch from the first group of the PDCCH search space set to at least one dormant group of the PDCCH search space set, for example, as shown in box 1304. For example, in some aspects, the UE can switch to a dormant group when a timer expires. UE 520 can switch to a dormant group if inactivity on the PDCCH exceeds the timer duration, or if the time duration between active periods meets a duration threshold. In some aspects, if the UE is operating in an unlicensed frequency band, the UE can switch to a dormant group after the COT ends.

[0241] In some respects, the UE can switch from the first group to the dormant group. The UE can switch to the dormant group at least in part based on receiving an indication from the base station to switch to the dormant group. As described in more detail below, the UE can suppress monitoring of the PDCCH at least in part based on switching to the dormant group. In this way, the UE can save power.

[0242] In block 1306, the UE may process one or more PDCCH search space sets from at least one sleep group of the PDCCH search space set, at least in part, based on the received configuration information. In some aspects, the one or more PDCCH search space sets processed may be subsets of the PDCCH search space sets from at least one sleep group of the PDCCH search space set. In additional aspects, the one or more PDCCH search space sets processed may be all PDCCH search space sets from at least one sleep group of the PDCCH search space set.

[0243] In some aspects, the UE's processing of the one or more PDCCH search space sets (e.g., as shown in box 1306) may include the UE monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets. For example, configuration information received by the UE from the base station (e.g., as shown in box 1302) may include an indication (e.g., an explicit indication) that one or more PDCCH search space sets will include PDCCH search space monitoring. According to some aspects, the explicit indication that one or more PDCCH search space sets will include PDCCH search space monitoring may indicate that one or more PDCCH search space sets, or one or more PDCCH search spaces within one or more PDCCH search space sets, should be monitored, regardless of whether the one or more PDCCH search space sets, or one or more PDCCH search spaces within one or more PDCCH search space sets, are part of a dormant group of the PDCCH search space sets. In some respects, such a set of one or more PDCCH search spaces, or one or more PDCCH search spaces within a set of one or more PDCCH search spaces (whether or not they are monitored within a dormant group of the PDCCH search space set) can be considered a set of PDCCH search spaces that are always monitored or a PDCCH search space that is always monitored.

[0244] According to some aspects, the UE's processing of the one or more PDCCH search space sets (e.g., as shown in box 1306) may include the UE monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets, at least in part, based on satisfying rules for search space monitoring. In some aspects, the rules for search space monitoring may be rules specifying that shared search spaces (CSSs) should be monitored even when they are part of a dormant group of the PDCCH search space set. In an additional aspect, the rules for search space monitoring may also indicate that UE-specific search spaces (USSs) do not need to be monitored when they are part of a dormant group of the PDCCH search space group. Accordingly, in some aspects, instead of explicitly informing which PDCCH search spaces within the dormant group should still be monitored, the UE may implicitly determine which PDCCH search spaces within the dormant group to monitor, at least in part, based on one or more rules for search space monitoring. According to some aspects, a search space or search space set that is specified by the rules to be monitored even within the dormant group of the PDCCH search space set can also be considered a PDCCH search space that is always monitored or a PDCCH search space set that is always monitored.

[0245] In some aspects, the UE's processing of the one or more PDCCH search space sets (e.g., as shown in box 1306) may include the UE monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets at least in part based on at least one of a Round-Trip Time (RTT) timer indication or a Retransmission Time (ReTx) timer indication. For example, configuration information received by the UE from the base station (e.g., as shown in box 1302) may include at least one of an RTT timer indication or a ReTx timer indication. According to some aspects, monitoring at least in part based on at least one of an RTT timer indication or a ReTx timer indication may be considered discontinuous monitoring. For example, the UE may be configured to disable or enable discontinuous PDCCH search space monitoring. As an example, the base station may send an indication to the UE indicating whether the UE should enable or disable discontinuous PDCCH search space monitoring. In some aspects, when discontinuous PDCCH search space monitoring is disabled, the UE may not monitor the PDCCH search space except for the portion of the PDCCH search space in the always monitored PDCCH search space set. In an additional aspect, when discontinuous PDCCH search space monitoring is enabled, the UE may monitor one or more PDCCH search spaces within one or more PDCCH search space sets, at least in part, based on at least one of an RTT timer indication or a ReTx timer indication. In some aspects, other timers may be used to perform discontinuous PDCCH search space monitoring as an addition to or alternative to the RTT timer indication and / or the ReTx timer indication. In some aspects, at least one of the RTT timer indication or the ReTx timer indication may be configured for downlink wireless communication (e.g., separately from the RTT timer indication and / or the ReTx timer indication configured for uplink wireless communication).

[0246] According to some aspects, at least one of the RTT timer indication or the ReTx timer indication may be associated with DRX configuration information. For example, in some aspects, configuration information received by the UE from the base station (e.g., as shown in box 1302) may include DRX configuration information. According to some aspects, when DRX is configured for the UE (e.g., using DRX configuration information), at least one of the RTT timer indication or the ReTx timer indication may be the same as the RTT timer indication or the ReTx timer indication provided using DRX configuration or provided as part of the DRX configuration information. In an additional aspect, when DRX is not configured (e.g., the configuration information received by the UE from the base station does not include DRX configuration information), at least one of the RTT timer indication or the ReTx timer indication may be provided in configuration information received by the UE from the base station for monitoring the non-contiguous PDCCH search space performed by the UE (e.g., as shown in box 1302), but may not be associated with the DRX configuration information. Depending on some aspects, processing one or more PDCCH search space sets may also include performing at least one of the following operations: suspending or invalidating at least one of the DRX start-up timers or DRX inactive timers associated with the DRX configuration information.

[0247] In some aspects, the UE's processing of one or more PDCCH search space sets (e.g., as shown in box 1306) may include the UE suppressing the monitoring of one or more PDCCH search spaces within one or more PDCCH search space sets. In other words, with a few exceptions (such as exceptions to always-monitored PDCCH search spaces or always-monitored PDCCH search space sets or non-continuous PDCCH search space monitoring), the UE may not monitor (e.g., suppress monitoring) one or more PDCCH search spaces within one or more PDCCH search space sets.

[0248] In some aspects, the UE's processing of the one or more PDCCH search space sets (e.g., as shown in box 1306) may include the UE suppressing monitoring of one or more PDCCH search spaces within the one or more PDCCH search space sets, at least in part, based on a sleep timer. For example, in some aspects, configuration information received by the UE from the base station (e.g., as shown in box 1302) may include a sleep timer providing an indication of the time period for suppressing search space monitoring. Thus, in some aspects, the UE may suppress monitoring of one or more PDCCH search spaces for a duration specified by the sleep timer. According to some aspects, the sleep timer may be started or restarted when the UE receives configuration information identifying one or more sleep groups of the PDCCH search space set (e.g., as shown in box 1302).

[0249] According to some aspects, the sleep timer value can be a time duration (e.g., milliseconds) or a number of time slots. If DRX is configured, the sleep timer value can also be the number of DRX cycles, so that the UE remains in a sleep group until the start of the next nth DRX cycle. If multiple sleep groups exist, the sleep timer value may differ between the sleep groups. In some aspects, the sleep timer value can be specific to a sleep group. According to some aspects, when more than one sleep timer is configured, additional configuration information associated with the sleep timer can be transmitted from the base station to the UE for selecting one of the sleep timers. According to some aspects, the additional configuration information can be transmitted together with the configuration information received by the UE (e.g., as shown in box 1302). In some aspects, the sleep timer value can be configured for the UE (e.g., via an RRC message). The UE can receive the sleep timer value in a configuration message (e.g., the configuration information shown in box 1302) or in an indication to switch to a sleep group. In other words, the sleep timer value can be received in the configuration information or in an indication to switch to a sleep group. In some respects, the base station may (for example, in configuration information or an indication to switch to a hibernation group) transmit the value of the hibernation timer to the UE.

[0250] In some aspects, the UE may perform one or more of the operations disclosed herein within a single dormant group of a PDCCH search space set. For example, in some aspects, within a dormant group of a PDCCH search space set, the UE may perform at least one of the following operations: suppress monitoring of one or more PDCCH search spaces within the dormant group, perform discontinuous PDCCH search space monitoring of one or more PDCCH search spaces within the dormant group, or monitor a continuously monitored PDCCH search space or a continuously monitored set of PDCCH search spaces within the dormant group.

[0251] Depending on several aspects, the UE can switch between multiple groups within the PDCCH search space set. In one example, the different groups may include a default group (group 0), a first non-dormant group (group 1), and a dormant group (group 2). The UE can switch from group 0 to group 1, where both groups are non-dormant, via an indication in the DCI. The UE can switch to group 2, which is the dormant group, via DCI, MACCE, or implicit triggering.

[0252] In some respects, the UE can switch from a dormant group to a non-dormant group. A group (such as group 1) can be designated as the first non-dormant group to which the UE can switch. If no first non-dormant group is designated, the UE can switch to a previous group or a default group (such as group 0). According to some respects, the UE can switch from a dormant group to a non-dormant group in the first carrier at least in part based on receiving an indication to switch to a non-dormant group.

[0253] In some aspects, the UE can explicitly trigger the handover from the dormant group. For example, the base station can transmit an indication to the UE to switch from the dormant group to a non-dormant group on the first carrier. Because the UE can not monitor the PDCCH while dormant, the explicit trigger can be an indication in the MAC CE. If SPS is configured, the MAC CE can be received on the semi-persistent scheduling (SPS) resources on the same carrier. If carrier aggregation is configured, the UE can receive the indication in the MAC CE or the search space cluster indication field in the DCI on different carriers. For example, the UE can receive a cross-carrier search space cluster indication. This indication can be specific to a carrier or can be applied to multiple carriers. According to some aspects, the UE can receive an indication to switch to a non-dormant group in a field on a specific carrier other than the first carrier among multiple carriers (e.g., from the base station).

[0254] In some aspects, the UE may receive an indication to switch to a non-dormant group in a field value in the DCI (e.g., from the base station), wherein the DCI is monitored in a shared search space set or a always-monitored PDCCH search space set regardless of whether the UE is in a dormant or non-dormant group. For example, if the UE selects a dormant group and switches to it, the UE can still monitor the shared search space set even if the UE is in a dormant group. In other words, the UE does not monitor the PDCCH in any other way, but can still receive an indication to switch to a non-dormant group. According to some aspects, the base station transmitting the indication to switch to a non-dormant group may include the value of a field transmitted by the base station in the DCI in the shared search space set or the always-monitored PDCCH search space set, which is monitored independently of the search space cluster selection.

[0255] Alternatively or additionally, in some aspects, the UE may switch from a dormant group to a non-dormant group based at least in part on an implicit trigger. In some aspects, the implicit trigger may be a dorm timer. According to some aspects, the UE may switch from a dormant group to a non-dormant group upon the expiration of the dorm timer. The non-dormant group may be one of the indicated search space cluster, the previous search space cluster, or the default search space cluster. According to some aspects, the non-dormant group may be the first non-dormant group to which the UE switches from the dormant group.

[0256] In some respects, implicit triggering may involve sensing communication activity in a carrier. For example, if the activity detected in a carrier meets an activity threshold (e.g., minimum energy, preamble detection), the UE can switch from a dormant group to a non-dormant group. The activity threshold and sensing timing can be specified through configuration. By switching to and from a dormant group, the UE can dynamically choose when to conserve power and when to improve monitoring performance.

[0257] According to some aspects, when a UE has information to transmit on the uplink, the UE may initiate a switchout from a dormant group to a non-dormant group. For example, in some aspects, when a UE has information to transmit on the uplink (e.g., uplink information), the UE may switch from at least one dormant group of a PDCCH search space set to a non-dormant group of the PDCCH search space set, so that the UE can monitor one or more PDCCH search spaces to receive uplink configuration information. In some aspects, the UE may transmit information based at least in part on the received uplink configuration information. According to some aspects, the UE may initiate a switchout from a dormant group to a non-dormant group in various ways. For example, in some aspects, the UE may transmit a scheduling request (SR) to the base station. According to some aspects, the UE may switch from at least one dormant group of a PDCCH search space set to a non-dormant group of the PDCCH search space set based at least in part on the transmitted SR received by the base station.

[0258] In some respects, configuration information may be received and / or transmitted in individual instances. For example, in some respects, the configuration information disclosed herein may be received and / or transmitted together in a single configuration message. In additional respects, some configuration information disclosed herein may be received and / or transmitted at a different time than the reception and / or transmission of other configuration information. As a result, configuration information may be received and / or transmitted in one or more configuration messages.

[0259] Figure 14 A diagram illustrating another method for PDCCH skipping based on PDCCH search space cluster switching, according to this disclosure, is shown. Aspects of method 1400 can be referenced. Figure 1-4 This can be implemented using various other aspects of the present disclosure (such as base stations / gNBs) as described in 15-16 and 18. For example, refer to Figure 2 The controller / processor 240 of base station 110 can control base station 110 to execute method 1400.

[0260] Figure 14 Method 1400, which can be performed by a base station (such as base station 110), is described. In block 1402, the base station (such as base station 110) may transmit configuration information including information identifying one or more dormant groups of a PDCCH search space set, the one or more dormant groups of which include one or more PDCCH search space sets that will be processed at least in part based on the configuration information. In block 1404, the base station may transmit an indication to switch from a first group of PDCCH search space sets to at least one dormant group of a PDCCH search space set among the identified one or more dormant groups of the PDCCH search space set, wherein the at least one dormant group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0261] As an example, Figure 15 A diagram illustrating an example of PDCCH skipping based on PDCCH search space cluster switching according to this disclosure is shown. Specifically, Figure 15 An example of PDCCH skipping based on PDCCH search space cluster switching is explained, where non-contiguous PDCCH search space monitoring is disabled.

[0262] like Figure 15 As explained, the UE can monitor the PDCCH search space during a first PDCCH monitoring opportunity 1502 within a first timeslot 1504. The UE can also monitor the PDCCH search space during a second PDCCH monitoring opportunity 1506 within a second timeslot 1508. In some aspects, the first PDCCH monitoring opportunity 1502 and the second PDCCH monitoring opportunity 1506 may be associated with the same non-dormant group of the PDCCH search space set. In additional aspects, the first PDCCH monitoring opportunity 1502 and the second PDCCH monitoring opportunity 1506 may be associated with different non-dormant groups of the PDCCH search space set. During the second PDCCH monitoring opportunity 1506, the UE can receive configuration information from the base station within a PDCCH 1510 associated with PDSCH 1512. The received configuration information may include indications of one or more dormant groups 1518 of the PDCCH search space set. According to some aspects, in response to receiving a configuration including an indication of one or more sleep groups 1518 of a PDCCH search space set, the UE may (e.g., to a base station transmitting configuration information within PDCCH 1510) transmit an acknowledgment (ACK) 1514 confirming receipt of the configuration information. In an additional aspect, in response to receiving a configuration including an indication of one or more sleep groups 1518 of a PDCCH search space set, the UE may (e.g., at the start of the next time slot 1516) switch to one or more sleep groups 1518 of the indicated PDCCH search space set. Figure 15 As explained, the UE can suppress monitoring of the PDCCH search space within one or more dormant groups 1518 of the indicated PDCCH search space set. To illustrate the lack of monitoring, in Figure 15 There is no explanation of the monitoring timing during the period during which the UE suppresses monitoring of the PDCCH search space. As previously described, one or more sleep groups 1518 of the PDCCH search space set may be associated with a sleep timer 1520. The UE may suppress monitoring of the PDCCH search space within one or more PDCCH sleep groups 1518 of the indicated PDCCH search space set for the duration specified by the sleep timer 1520.

[0263] like Figure 15As explained in the document, the UE can switch from one or more dormant groups 1518 of the indicated PDCCH search space set to a non-dormant group of the PDCCH search space set, such as... Figure 15 The first non-sleep group 1522 of the PDCCH search space set is explained in the text. The UE can switch to the non-sleep group 1522 of the PDCCH search space set based on an indication received from the base station or implicitly based on the satisfaction of one or more rules. In an additional aspect, the UE can switch to the non-sleep group 1522 of the PDCCH search space set at least in part based on the expiration of a sleep timer 1520 associated with one or more sleep groups 1518 of the indicated PDCCH search space set. In some aspects, the UE can... Figure 15 The UE monitors the PDCCH search space within the non-dormant group 1522 of the PDCCH search space set explained herein. For example, the UE can monitor the PDCCH search space within the non-dormant group 1522 of the PDCCH search space set. Figure 15 The monitoring of the PDCCH search space within the non-dormant group of the PDCCH search space set explained in the article is conducted during monitoring times 1524 and 1526.

[0264] As an example, Figure 16 A diagram illustrating an example of PDCCH skipping based on PDCCH search space cluster switching according to this disclosure is shown. Specifically, Figure 16 An example of PDCCH skipping based on PDCCH search space cluster switching is explained, in which non-contiguous PDCCH search space monitoring is enabled and multiple sleep timers are utilized.

[0265] like Figure 16As explained, the UE can monitor the PDCCH search space during the first PDCCH monitoring opportunity 1602 within the first timeslot 1604. The UE can also monitor the PDCCH search space during the second PDCCH monitoring opportunity 1606 within the second timeslot 1608. In some aspects, the first PDCCH monitoring opportunity 1602 and the second PDCCH monitoring opportunity 1606 may be associated with the same non-dormant group of the PDCCH search space set. In additional aspects, the first PDCCH monitoring opportunity 1602 and the second PDCCH monitoring opportunity 1606 may be associated with different non-dormant groups of the PDCCH search space set. During the second PDCCH monitoring opportunity 1606, the UE can receive configuration information from the base station within PDCCH 1610 associated with PDSCH 1612. The received configuration information may include indications of one or more non-dormant groups of the PDCCH search space set 1618. In some aspects, the UE may not have received some information in PDCCH 1610 or PDSCH 1612. Accordingly, in response, the UE may (e.g., to the base station transmitting configuration information within PDCCH 1610) transmit a negative acknowledgment (NACK) 1614. Additionally, the UE may still (e.g., at the start of the next time slot 1616) switch to one or more sleep groups indicated by the PDCCH search space set 1618. Figure 16 As explained, the UE can suppress monitoring of some PDCCH search spaces (such as the PDCCH search spaces in time slots 1650, 1652, and 1654) within one or more sleep groups indicated by PDCCH search space set 1618. However, because the UE may not have received some information in PDCCH 1610 or PDSCH 1612 (as indicated by the NACK 1614 transmission), the UE can still perform non-contiguous PDCCH search space monitoring in some time slots.

[0266] like Figure 16 As explained, discontinuous PDCCH search space monitoring can be based at least in part on at least one of RTT timer indication 1660 or ReTx timer indication 1662. For example, in some aspects, PDCCH search space monitoring can be skipped in slot 1650 due to indications to one or more sleep groups of PDCCH search space set 1618 and a UE handover to a sleep group of PDCCH search space set 1618. In additional aspects, PDCCH search space monitoring can be skipped in slots 1652 and 1654 based at least in part on RTT timer indication 1660. After the RTT timer terminates, the UE can start a ReTx timer and begin monitoring the PDCCH search space at least in part based on that ReTx timer. For example, as Figure 16As explained, the UE can monitor the PDCCH search space at least in part based on the ReTx timer during monitoring times 1670 and 1672 in time slots 1674 and 1676, respectively.

[0267] like Figure 16 As explained, during monitoring time 1670, the UE may receive configuration information from the base station within PDCCH 1680 associated with PDSCH 1682. The received configuration information may include indications of one or more other non-dormant groups of the PDCCH search space set 1684. According to some aspects, in response to receiving a configuration including indications of one or more other dormant groups of the PDCCH search space set 1684, the UE may (e.g., to the base station transmitting the configuration information within PDCCH 1680) transmit an ACK 1686 acknowledging receipt of the configuration information. In an additional aspect, in response to receiving a configuration including indications of one or more other dormant groups of the PDCCH search space set 1684, the UE may (e.g., at the start 1688 of the next time slot 1676) switch to the indicated one or more dormant groups of the PDCCH search space set 1684. Figure 16 As explained, the UE can suppress monitoring of some PDCCH search spaces within one or more other sleep groups indicated by PDCCH search space set 1684. To illustrate the lack of monitoring, there is no opportunity for monitoring during one or more other sleep groups of PDCCH search space set 1684 after time slot 1676. Figure 16 This is explained in the text. In some aspects, one or more other sleep groups of the PDCCH search space set 1684 may be associated with sleep timer 1690. In some aspects, sleep timer 1690 may be different from sleep timer 1692 associated with one or more sleep groups of the PDCCH search space set 1618. (The text continues with further details about sleep timers and their relationships.) Figure 16 As explained, the UE can at least partially suppress monitoring of some PDCCH search spaces within one or more other sleep groups indicated by the PDCCH search space set 1684 based on the sleep timer 1690.

[0268] Figure 17 A block diagram conceptually illustrates the design of a UE configured according to this disclosure. The UE 1700 can be configured to perform operations, including referencing... Figure 13 The various blocks of method 1300 are described. In some implementations, UE 1700 includes references. Figure 1The structure, hardware, and components shown and described in UE 120 and / or UE 1700 are as follows. For example, UE 1700 includes a controller 280 that operates to execute logical or computer instructions as explained in the communication manager 1710, and various components that control UE 1700 and provide the features and functionality of UE 1700. Under the control of controller 280, UE 1700 transmits and receives signals via wireless radio 1701a-r and antenna 252a-r. Wireless radio 1701a-r includes various components and hardware, such as those shown in... Figure 2 The description of UE120 includes modulator and demodulator 254a-r, MIMO detector 256, receiver processor 258, transmitter processor 264 and TX MIMO processor 266.

[0269] The communication manager 1710 may include receiving logic 1702, switching logic 1703, and processing logic 1704. A portion of one or more of components 1702, 1703, or 1704 may be implemented at least partially in hardware or software. In some implementations, at least one of components 1702, 1703, and 1704 is implemented at least partially as software stored in memory (such as memory 282). For example, a portion of one or more of components 1702, 1703, and 1704 may be implemented as non-transient instructions or code executable by a processor (such as controller 280) to perform the function or operation of the respective component.

[0270] One or more components 1702, 1703, or 1704, as explained in the communication manager 1710, may configure the processor / controller 280 to perform one or more procedures related to wireless communication performed by the UE 1700, as previously described. For example, the receive logic 1702 may configure the controller / processor 280 to perform procedures as previously described in reference block 1302 (see... Figure 13 The operation can be performed in any manner as described above, including receiving configuration information that includes information identifying one or more dormant groups of the PDCCH search space set. Additionally, switching logic 1703 can configure the controller / processor 280 to operate as previously described in reference box 1304 (see...). Figure 13 The operation, including the action of switching from the first group of the PDCCH search space set to at least one dormant group of the PDCCH search space set identified in one or more dormant groups, can be performed in any manner as described above. Additionally, the processing logic 1704 can configure the configuration controller / processor 280 as previously described in reference box 1306 (see...). Figure 13The UE 1700 may perform operations including the following actions in any manner as described in the description: processing one or more PDCCH search space sets in at least one sleep group of the PDCCH search space set, at least in part, based on the received configuration information. The UE 1700 may receive configuration information from one or more network entities (such as...) Figure 1-2 base stations or such Figure 18 The base station (as explained in the text) receives signals or transmits signals to one or more network entities.

[0271] Figure 18 This is a block diagram conceptually illustrating the design of a base station (e.g., a gNB) configured according to this disclosure. Base station 1800 can be configured to perform operations, including referencing... Figure 14 The various blocks of the described method 1400. In some implementations, base station 1800 includes references Figure 1-2 The base station 110 is shown and described in terms of its structure, hardware, and components. For example, base station 1800 may include a controller 240, which operates to execute logical or computer instructions as explained in communication manager 1810, and various components that control base station 1800 and provide the characteristics and functionality of base station 1800. Base station 1800 transmits and receives signals via wireless radio 1801a-t and antenna 234a-t under the control of controller 240. Wireless radio 1801a-t includes various components and hardware (such as those in…). Figure 2 (As explained in the text for base station 110), it includes modulator / demodulator 232a-t, transmitter processor 220, TX MIMO processor 230, MIMO detector 236, and receiver processor 238.

[0272] The communication manager 1810 may include transmission logic 1802. Parts of component 1802 may be implemented, at least partially, in hardware or software. In some implementations, component 1802 may be implemented, at least partially, as software stored in memory (such as memory 242). For example, parts of component 1802 may be implemented as non-transient instructions or code executable by a processor (such as controller 240) to perform the function or operation of the respective component.

[0273] The component 1802, as explained in the communication manager 1810, configures the processor / controller 280 to perform one or more procedures related to wireless communication performed by the base station 1800, as previously described. For example, the transmission logic 1802 may configure the controller / processor 280 to perform procedures as previously described, such as reference block 1402 (see...). Figure 14The operation described herein may be performed in any manner including transmitting configuration information that identifies one or more dormant groups of a PDCCH search space set, the one or more dormant groups of which include one or more PDCCH search space sets that will be processed at least in part based on the received configuration information. Additionally, the transmission logic 1802 may configure the controller / processor 280 as previously described in reference block 1404 (see...). Figure 14 The base station 1800 may perform operations including the following actions in any manner as described: transmitting an indication to switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets. The base station 1800 may receive an indication from one or more UEs (such as...) Figure 1-2 UE 120 or such Figure 17 The UE (as explained in the text) receives signals or transmits signals to one or more UEs.

[0274] Note that, refer to Figure 13 and 14 One or more boxes (or operations) described may be related to the accompanying drawings (e.g., Figure 5-8 A combination of one or more boxes (or operations) described in another figure in the diagram. For example, Figure 13 One or more boxes (or operations) can be combined with Figure 14 A combination of one or more boxes (or actions). As another example, with... Figure 17 Or 18 associated with one or more boxes can be combined with Figure 1 Or a combination of one or more boxes (or operations) associated with 2.

[0275] In some aspects, techniques for skipping PDCCH based on PDCCH search space cluster handover may include: the UE receiving configuration information including information identifying one or more dormant groups of a PDCCH search space set. The techniques for skipping PDCCH based on PDCCH search space cluster handover may further include: the UE switching from a first group of the PDCCH search space set to at least one dormant group of the identified one or more dormant groups of the PDCCH search space set. The techniques for skipping PDCCH based on PDCCH search space cluster handover may further include: the UE processing one or more PDCCH search space sets in at least one dormant group of the PDCCH search space set at least partially based on the received configuration information.

[0276] Techniques for PDCCH skipping based on PDCCH search space cluster switching may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0277] In a first aspect, the received configuration information includes an indication that the one or more PDCCH search space sets will include PDCCH search space monitoring, and processing the one or more PDCCH search space sets includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets.

[0278] In a second aspect, processing the one or more PDCCH search space sets, either alone or in combination with the first aspect, includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets, at least in part, based on satisfying rules for search space monitoring.

[0279] In a third aspect, either alone or in combination with one or more of the first and second aspects, the received configuration information includes at least one of an RTT indication or a retransmission timer indication, and processing the one or more PDCCH search space sets includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets based at least in part on the RTT indication or the retransmission timer indication.

[0280] In the fourth aspect, alone or in combination with one or more of the first to third aspects, the received configuration information includes DRX configuration information, wherein at least one of the RTT indication or the retransmission timer indication is associated with the DRX configuration information, and processing the one or more PDCCH search space sets further includes performing at least one of the following operations: suspending or invalidating at least one of the DRX enable duration timer or DRX inactive timer associated with the DRX configuration information.

[0281] In the fifth aspect, processing the one or more PDCCH search space sets, either alone or in combination with one or more of the first to fourth aspects, includes: suppressing monitoring of one or more PDCCH search spaces within the one or more PDCCH search space sets.

[0282] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the received configuration information includes a sleep timer that provides an indication of the time period for suppressing search space monitoring, and processing the one or more PDCCH search space sets includes: suppressing monitoring of one or more PDCCH search spaces within the one or more PDCCH search space sets, at least in part based on the sleep timer.

[0283] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the hibernation timer is started upon receiving configuration information identifying one or more hibernation groups of the PDCCH search space set.

[0284] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the received configuration information includes an indication of one or more dormant groups of the PDCCH search space set.

[0285] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the received configuration information includes an indication of one or more non-dormant groups of the PDCCH search space set, and the one or more dormant groups of the PDCCH search space set are identified at least in part based on the indication of one or more non-dormant groups of the PDCCH search space set.

[0286] In some aspects, techniques for skipping PDCCH based on PDCCH search space cluster handover may include: a base station transmitting configuration information including information identifying one or more dormant groups of a PDCCH search space set, the one or more dormant groups of the PDCCH search space set including one or more PDCCH search space sets to be processed at least in part based on the received configuration information. The techniques for skipping PDCCH based on PDCCH search space cluster handover may further include: the base station transmitting an indication to switch from a first group of the PDCCH search space set to at least one dormant group of a PDCCH search space set among the identified one or more dormant groups of the PDCCH search space set, wherein the at least one dormant group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0287] Techniques for PDCCH skipping based on PDCCH search space cluster switching may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere in this document.

[0288] In the tenth aspect, the transmitted configuration information includes an indication that the one or more PDCCH search space sets will include PDCCH search space monitoring, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are monitored.

[0289] In the eleventh aspect, either alone or in conjunction with the tenth aspect, one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are monitored at least in part based on satisfying the rules used for search space monitoring.

[0290] In the twelfth aspect, either alone or in combination with one or more of the tenth to eleventh aspects, the transmitted configuration information includes at least one of an RTT indication or a retransmission timer indication, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are monitored at least in part based on at least one of the round-trip timer indication or the retransmission timer indication.

[0291] In the thirteenth aspect, either alone or in combination with one or more of the tenth to twelfth aspects, the transmitted configuration information includes DRX configuration information, and at least one of the RTT indication or the retransmission timer indication is associated with the DRX configuration information, and at least one of the DRX enable duration timer or DRX inactive timer associated with the DRX configuration information is suspended and / or invalidated.

[0292] In the fourteenth aspect, alone in conjunction with one or more of aspects ten through thirteen, one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are not monitored.

[0293] In the fifteenth aspect, alone and in combination with one or more of the tenth to fourteenth aspects, the transmitted configuration information includes a sleep timer that provides an indication of the time period for suppressing search space monitoring, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are not monitored at least in part based on the sleep timer.

[0294] In the sixteenth aspect, alone or in combination with one or more of aspects ten through fifteen, the hibernation timer is started at least in part based on transmitted configuration information identifying one or more hibernation groups of the PDCCH search space set.

[0295] In the seventeenth aspect, alone or in combination with one or more of aspects ten through sixteen, the transmitted configuration information includes an indication of one or more dormant groups of the PDCCH search space set.

[0296] In the eighteenth aspect, alone or in combination with one or more of the tenth to seventeenth aspects, the received configuration information includes an indication of one or more non-dormant groups of the PDCCH search space set, and the one or more dormant groups of the PDCCH search space set are identified at least in part based on the indication of one or more non-dormant groups of the PDCCH search space set.

[0297] The following provides an overview of some aspects of this disclosure:

[0298] Aspect 1: A wireless communication method performed by a user equipment (UE) comprising: switching from a first group of a search space set for monitoring a physical downlink control channel (PDCCH) to a dormant group of the search space set in a first carrier; and suppressing monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0299] Aspect 2: The method of aspect 1, wherein the dormant group is an empty group without a search space set.

[0300] Aspect 3: The method of aspect 1, wherein the dormant group comprises a set of dummy search spaces with infinite periodicity or zero PDCCH candidates.

[0301] Aspect 4: The method of any of Aspects 1-3, wherein switching to a dormant group comprises: switching to a dormant group based at least in part on receiving an instruction to switch to a dormant group to refrain from PDCCH monitoring.

[0302] Aspect 5: The method of aspect 4, wherein receiving an indication to switch to a dormant group includes receiving a value in the search space cluster indication field in the downlink control information.

[0303] Aspect 6: The method of aspect 4, wherein receiving an instruction to switch to a hibernation group includes receiving the instruction in a media access control control element.

[0304] Aspect 7: The method of any of Aspects 1-6, wherein receiving an instruction to switch to a dormant group includes receiving the instruction only in the specified non-dormant group.

[0305] Aspect 8: The method of any of Aspects 1-7, wherein switching to a dormant group comprises: switching to a dormant group based at least in part on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0306] Aspect 9: The method of any of Aspects 1-8 further includes: receiving a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group at least in part based on determining that one or more conditions satisfy the switching rule.

[0307] Aspect 10: The method of any of Aspects 1-9 further includes: switching from a dormant group to a non-dormant group in a first carrier based at least in part on receiving an indication to switch to a non-dormant group.

[0308] Aspect 11: The method of aspect 10, wherein receiving an instruction to switch to a non-dormant group includes:

[0309] The instruction is received in the Media Control Element (MAC CE) on the semi-persistent scheduling resource.

[0310] Aspect 12: The method of aspect 10, wherein receiving an instruction to switch to a non-dormant group includes:

[0311] The indication is received in a field on a specific carrier other than the first carrier among multiple carriers.

[0312] Aspect 13: The method of aspect 10, wherein receiving an instruction to switch to a non-dormant group includes:

[0313] The values ​​of fields in the downlink control information are received in a shared search space that is monitored, independent of the search space cluster.

[0314] Aspect 14: The method of any of Aspects 1-13 further includes: switching from a dormant group to a non-dormant group based at least in part on the expiration of a dormant timer, wherein the non-dormant group is one of the specified search space cluster, the previous search space cluster, or the default search space cluster.

[0315] Aspect 15: The method of aspect 14, wherein the expiration of the hibernation timer is based at least in part on the value of the hibernation timer received in the configuration or an indication to switch to a hibernation group.

[0316] Aspect 16: The method of aspect 14, wherein the expiration of the sleep timer is based at least in part on one or more of the following: time duration, number of time slots, or number of discontinuous reception cycles.

[0317] Aspect 17: The method of any of Aspects 1-16 further includes: switching from a dormant group to a non-dormant group based at least in part on determining that the communication activity in the first carrier meets an activity threshold.

[0318] Aspect 18: A method for performing wireless communication by a base station, comprising: determining that a user equipment (UE) will switch from a first group of a search space set for monitoring a physical downlink control channel (PDCCH) to a dormant group of the search space set in a first carrier; and transmitting to the UE an indication to switch to the dormant group such that the UE suppresses monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0319] Aspect 19: The method of aspect 18, wherein the dormant group is an empty group that does not have a search space set.

[0320] Aspect 20: The method of aspect 18, wherein the dormant group comprises a set of dummy search spaces with infinite periodicity or zero PDCCH candidates.

[0321] Aspect 21: The method of any of Aspects 18-20, wherein transmitting an indication to switch to a dormant group includes transmitting a value in the search space cluster indication field in the downlink control information.

[0322] Aspect 22: The method of any of Aspects 18-20, wherein transmitting an instruction to switch to a hibernation group includes transmitting the instruction in a Media Access Control Element (MAC CE).

[0323] Aspect 23: The method of any of Aspects 18-22 further includes: transmitting to the UE a configuration specifying that the UE will switch to a dormant group at least in part based on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0324] Aspect 24: The method of any of Aspects 18-23 further includes: transmitting to the UE a handover rule for handing over to a hibernation group, wherein the handover rule specifies that the UE will hand over to the hibernation group at least in part based on determining that one or more conditions satisfy the handover rule.

[0325] Aspect 25: The method of any of Aspects 18-24 further includes: transmitting to the UE an indication to switch from a dormant group to a non-dormant group in a first carrier.

[0326] Aspect 26: As in aspect 25, wherein transmitting an instruction to switch to a non-dormant group includes:

[0327] On semi-persistent scheduling resources, the indication is transmitted in the Media Access Control Element (MAC CE). Aspect 27: The method of aspect 25, wherein transmitting the indication to switch to a non-sleeping group includes:

[0328] The indication is transmitted in a field on a specific carrier other than the first carrier among multiple carriers.

[0329] Aspect 28: As in aspect 25, wherein the transmission of an instruction to switch to a non-dormant group includes:

[0330] The values ​​of fields are transmitted in the downlink control information, focusing on the shared search space being monitored, independent of the search space cluster selection.

[0331] Aspect 29: The method of any of Aspects 18-28, wherein transmitting an instruction to switch to a dormant group includes transmitting the instruction only in the specified non-dormant group.

[0332] Aspect 30: The method of any of Aspects 18-29 further includes: transmitting a value of a sleep timer to the UE, wherein the UE will switch from a sleep group to a non-sleep group at least in part based on the expiration of the sleep timer, and wherein the non-sleep group is one of a specified search space cluster, a previous search space cluster, or a default search space cluster.

[0333] Aspect 31: The method of aspect 30 further includes transmitting the value of the hibernation timer in the configuration or indication to switch to a hibernation group.

[0334] Aspect 32: The method of aspect 30, wherein the expiration of the sleep timer is based at least in part on one or more of the following: time duration, number of time slots, or number of discontinuous reception cycles.

[0335] Aspect 33: A wireless communication method performed by a user equipment (UE) comprising: switching from a first group of a search space set for monitoring a physical downlink control channel (PDCCH) in a first carrier to a first non-dormant group of the search space set, wherein the UE is restricted to switching from the first group to a dormant group of the search space set in the first carrier; switching from the first non-dormant group to a dormant group; and suppressing monitoring of the PDCCH at least in part based on the switch to the dormant group.

[0336] Aspect 34: The method of aspect 33, wherein the dormant group is an empty group without a search space set.

[0337] Aspect 35: The method of aspect 33, wherein the dormant group comprises a set of dummy search spaces with infinite periodicity or zero PDCCH candidates.

[0338] Aspect 36: The method of any of Aspects 33-35, wherein switching from a first non-dormant group to a dormant group comprises: switching to a dormant group at least in part based on receiving an instruction to switch to a dormant group.

[0339] Aspect 37: The method of aspect 36, wherein receiving an indication to switch to a dormant group includes receiving a value in the search space cluster indication field in a downlink control information or media access control control element (MAC CE).

[0340] Aspect 38: The method of any of Aspects 33-37, wherein switching to a dormant group comprises: switching to a dormant group based at least in part on determining that the inactivity on the PDCCH meets an inactivity threshold.

[0341] Aspect 39: The method of any of Aspects 33-38 further includes: receiving a switching rule for switching to a hibernation group, wherein switching to a hibernation group includes: switching to a hibernation group at least in part based on determining that one or more conditions satisfy the switching rule.

[0342] Aspect 40: The method of any of Aspects 33-39 further includes: switching from a dormant group to a first non-dormant group based at least in part on receiving an instruction to switch to a non-dormant group.

[0343] Aspect 41: The method of aspect 40, wherein receiving an indication to switch to the first non-sleeping group includes: receiving the indication in a media access control control element on a semi-persistent scheduling resource.

[0344] Aspect 42: The method of aspect 40, wherein receiving an instruction to switch to a non-dormant group includes:

[0345] The indication is received in a field on a specific carrier other than the first carrier among multiple carriers.

[0346] Aspect 43: The method of aspect 40, wherein receiving an indication to switch to the first non-dormant group includes: receiving the value of a field in downlink control information in a shared search space set being monitored, independent of the search space cluster selection.

[0347] Aspect 44: The method of aspect 40 further includes switching from a dormant group to a first non-dormant group based at least in part on the expiration of a dormant timer, wherein the expiration of the dormant timer is based at least in part on one or more of time duration, number of time slots, or number of discontinuous reception cycles.

[0348] Aspect 45: The method of any of Aspects 33-44 further includes: switching from a dormant group to a first non-dormant group based at least in part on determining that the communication activity in the first carrier meets an activity threshold.

[0349] Aspect 46: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods of aspects 1-45.

[0350] Aspect 47: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory and configured to perform one or more of the methods of aspects 1-45.

[0351] Aspect 48: An apparatus for wireless communication, comprising at least one means for performing one or more methods as described in aspects 1-45.

[0352] Aspect 49: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform one or more of the methods of aspects 1-45.

[0353] Aspect 50: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more methods as described in aspects 1-45.

[0354] The following provides an overview of some other aspects of this disclosure:

[0355] Aspect 1: A wireless communication method performed by a user equipment (UE), the method comprising: receiving configuration information including information identifying one or more sleep groups of a physical downlink control channel (PDCCH) search space set; switching from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set; and processing one or more PDCCH search spaces in the at least one sleep group of the PDCCH search space set based at least in part on the received configuration information.

[0356] Aspect 2: The method of aspect 1, wherein the dormant group is an empty group without a search space set or a search space set with infinite periodicity or zero PDCCH candidates.

[0357] Aspect 3: The method of aspect 1 or 2, wherein the received configuration information includes an indication that the one or more PDCCH search space sets will include PDCCH search space monitoring, and wherein processing the one or more PDCCH search space sets includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets.

[0358] Aspect 4: The method of any of Aspects 1-3, wherein processing the one or more PDCCH search space sets includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets based at least in part on satisfying rules for search space monitoring.

[0359] Aspect 5: The method of any of Aspects 1-4, wherein the received configuration information includes at least one of a round-trip timer indication or a retransmission timer indication, and wherein processing the one or more PDCCH search space sets includes: monitoring one or more PDCCH search spaces within the one or more PDCCH search space sets based at least in part on the round-trip timer indication or the retransmission timer indication.

[0360] Aspect 6: The method of aspect 5, wherein the received configuration information includes discontinuous reception (DRX) configuration information, and wherein at least one of the round-trip timer indication or the retransmission timer indication is associated with the DRX configuration information, and wherein processing the one or more PDCCH search space sets further includes performing at least one of the following operations: suspending or invalidating at least one of the DRX enable duration timer or the DRX inactive timer associated with the DRX configuration information.

[0361] Aspect 7: The method of any of Aspects 1-6, wherein processing the one or more PDCCH search space sets includes: suppressing monitoring of one or more PDCCH search spaces within the one or more PDCCH search space sets.

[0362] Aspect 8: The method of aspect 7, wherein the received configuration information includes a sleep timer providing an indication of the time period for suppressing search space monitoring, and wherein processing the one or more PDCCH search space sets includes: suppressing monitoring of one or more PDCCH search spaces within the one or more PDCCH search space sets, at least in part based on the sleep timer.

[0363] Aspect 9: The method of aspect 8, wherein the hibernation timer is started upon receiving configuration information identifying one or more hibernation groups of the PDCCH search space set.

[0364] Aspect 10: The method of any of Aspects 1-9, wherein the received configuration information includes an indication of one or more dormant groups of the PDCCH search space set.

[0365] Aspect 11: The method of any of Aspects 1-10, wherein the received configuration information includes an indication of one or more non-dormant groups of a PDCCH search space set, and wherein the one or more dormant groups of the PDCCH search space set are identified at least in part based on the indication of one or more non-dormant groups of the PDCCH search space set.

[0366] Aspect 12: A wireless communication method performed by a base station, the method comprising: transmitting configuration information including information identifying one or more sleep groups of a PDCCH search space set including one or more physical downlink control channel (PDCCH) search space sets to be processed; and transmitting an indication to switch from a first group of the PDCCH search space set to at least one sleep group of the identified one or more sleep groups of the PDCCH search space set, wherein the at least one sleep group of the PDCCH search space set includes the one or more PDCCH search space sets.

[0367] Aspect 13: The method of aspect 12, wherein the dormant group is an empty group without a search space set or a search space set with infinite periodicity or zero PDCCH candidates.

[0368] Aspect 14: The method of aspect 12, wherein the transmitted configuration information includes an indication that the one or more PDCCH search space sets will include PDCCH search space monitoring, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are monitored.

[0369] Aspect 15: The method of aspect 14, wherein one or more PDCCH search spaces to be processed within the set of one or more PDCCH search spaces are monitored at least in part based on satisfying rules for search space monitoring.

[0370] Aspect 16: The method of any of Aspects 12-15, wherein the transmitted configuration information includes at least one of a round-trip timer indication or a retransmission timer indication, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are monitored at least in part based on at least one of the round-trip timer indication or the retransmission timer indication.

[0371] Aspect 17: The method of aspect 16, wherein the transmitted configuration information includes discontinuous reception (DRX) configuration information, wherein at least one of the round-trip timer indication or the retransmission timer indication is associated with the DRX configuration information, and wherein at least one of the DRX enable duration timer or the DRX inactive timer associated with the DRX configuration information is suspended and / or invalidated.

[0372] Aspect 18: The method of any of Aspects 12-17, wherein one or more PDCCH search spaces to be processed within the set of one or more PDCCH search spaces are not monitored.

[0373] Aspect 19: The method of any of Aspects 12-18, wherein the transmitted configuration information includes a sleep timer that provides an indication of the time period for suppressing search space monitoring, such that one or more PDCCH search spaces to be processed within the one or more PDCCH search space sets are not monitored at least in part based on the sleep timer.

[0374] Aspect 20: The method of aspect 19, wherein the hibernation timer is started at least in part based on transmitted configuration information identifying one or more hibernation groups of the PDCCH search space set.

[0375] Aspect 21: The method of any of Aspects 12-20, wherein the transmitted configuration information includes an indication of one or more dormant groups of the PDCCH search space set.

[0376] Aspect 22: The method of any of Aspects 12-21, wherein the transmitted configuration information includes an indication of one or more non-dormant groups of the PDCCH search space set, and wherein the one or more dormant groups of the PDCCH search space set are identified at least in part based on the indication of one or more non-dormant groups of the PDCCH search space set.

[0377] Aspect 23: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods of aspects 1-22.

[0378] Aspect 24: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory and configured to perform one or more of the methods of aspects 1-22.

[0379] Aspect 25: An apparatus for wireless communication, comprising at least one means for performing one or more methods as described in aspects 1-22.

[0380] Aspect 26: A non-transient computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform one or more of the methods of aspects 1-22.

[0381] Aspect 27: A non-transient computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods of aspects 1-22.

[0382] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.

[0383] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. "Software" should be broadly interpreted as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description languages, or other terms. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any way. Thus, the operation and behavior of these systems and / or methods are described herein without reference to any specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods, at least in part, based on the descriptions herein.

[0384] As used in this article, depending on the context, a threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0385] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes each dependent claim being combined with each other claim in this set of claims. As used herein, the phrase “at least one of” refers to any combination of these items, including single members. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0386] The elements, actions, or instructions used herein should not be construed as critical or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referenced in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used herein, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Moreover, as used herein, the term “or” is intended to be inclusive when used in a sequence and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., in combination with “either of” or “only one of”).

Claims

1. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors, said one or more processors being coupled to the memory and configured to: In the first carrier, the search space set is switched from the first group of the search space set used for monitoring the physical downlink control channel (PDCCH) to the dormant group of the search space set; as well as At least in part, this is based on suppressing monitoring of the PDCCH by switching to the hibernation group. In order to switch to the hibernation group, the one or more processors are configured to switch to the hibernation group at least in part based on determining that the inactivity on the PDCCH meets an inactivity threshold.

2. The UE as claimed in claim 1, wherein the dormant group is an empty group without a search space set.

3. The UE of claim 1, wherein the dormant group comprises a set of dummy search spaces having infinite periodicity or zero PDCCH candidates.

4. The UE of claim 1, wherein the one or more processors are configured to: switch from the dormant group to the non-dormant group in the first carrier at least in part based on receiving an indication to switch to the non-dormant group, and wherein, in order to receive the indication to switch to the non-dormant group, the one or more processors are configured to perform one or more of the following operations: The instruction is received in the Media Access Control Element (MAC CE) on a semi-persistent scheduling resource; The indication is received in a field on a specific carrier other than the first carrier among multiple carriers; or The values ​​of fields in the downlink control information are received in a shared search space that is monitored, independent of the search space cluster.

5. The UE of claim 4, wherein the one or more processors are configured to switch from the hibernation group to a non-hibernation group at least in part based on the expiration of a hibernation timer, and wherein the non-hibernation group is one of the designated search space cluster, the previous search space cluster, or the default search space cluster.

6. The UE of claim 5, wherein the expiration of the timer is based at least in part on the value of the timer received in the configuration, an indication to switch to the sleep group without PDCCH monitoring, the duration of the time, the number of time slots, or the number of discontinuous reception cycles.

7. The UE of claim 1, wherein the one or more processors are configured to switch from the dormant group to a non-dormant group at least in part based on determining that the communication activity in the first carrier meets an activity threshold.

8. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors, said one or more processors being coupled to the memory and configured to: In the first carrier, the UE switches from a first group of the search space set used for monitoring the physical downlink control channel (PDCCH) to a first non-dormant group of the search space set, wherein the UE is restricted from switching from the first group to the dormant group of the search space set in the first carrier. Switch from the first non-dormant group to the dormant group; as well as At least in part, this is based on suppressing monitoring of the PDCCH by switching to the hibernation group. In order to switch to the hibernation group, the one or more processors are configured to switch to the hibernation group at least in part based on determining that the inactivity on the PDCCH meets an inactivity threshold.

9. The UE of claim 8, wherein the dormant group is an empty group without a search space set or a search space set with infinite periodicity or zero PDCCH candidates.

10. The UE of claim 8, wherein the one or more processors are configured to: switch from the dormant group to the first non-dormant group at least in part based on receiving an instruction to switch to the first non-dormant group, and wherein, in order to switch to the first non-dormant group, the one or more processors are configured to perform one or more of the following operations: The instruction is received in the Media Access Control Element (MAC CE) on a semi-persistent scheduling resource; The indication is received in a field on a specific carrier other than the first carrier among multiple carriers; or The values ​​of fields in the downlink control information are received in a shared search space that is monitored, independent of the search space cluster.

11. The UE of claim 8, wherein the one or more processors are configured to switch from the sleep group to the first non-sleep group at least in part based on the expiration of a sleep timer, and wherein the expiration of the sleep timer is at least in part based on one or more of time duration, number of time slots, or number of discontinuous reception cycles.

12. The UE of claim 8, wherein one or more processors are configured to switch from the dormant group to the first non-dormant group at least in part based on determining that the communication activity in the first carrier meets an activity threshold.

13. A method for wireless communication by a user equipment, comprising the steps of any one of claims 1-7 performed by said user equipment.

14. A method for wireless communication by a user equipment, comprising the steps of any one of claims 8-12 performed by said user equipment.

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