WO2020228011A1 - Économies d'énergie pour dispositifs autonomes et non autonomes - Google Patents

Économies d'énergie pour dispositifs autonomes et non autonomes Download PDF

Info

Publication number
WO2020228011A1
WO2020228011A1 PCT/CN2019/087188 CN2019087188W WO2020228011A1 WO 2020228011 A1 WO2020228011 A1 WO 2020228011A1 CN 2019087188 W CN2019087188 W CN 2019087188W WO 2020228011 A1 WO2020228011 A1 WO 2020228011A1
Authority
WO
WIPO (PCT)
Prior art keywords
power level
base station
message
configuration
indicator value
Prior art date
Application number
PCT/CN2019/087188
Other languages
English (en)
Inventor
Haojun WANG
Kaikai YANG
Zhenqing CUI
Hong Wei
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2019/087188 priority Critical patent/WO2020228011A1/fr
Publication of WO2020228011A1 publication Critical patent/WO2020228011A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/0277—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof according to available power supply, e.g. switching off when a low battery condition is detected
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the following relates generally to wireless communications, and more specifically to energy savings for standalone and non-standalone devices.
  • Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) .
  • Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems.
  • 4G systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems
  • 5G systems which may be referred to as New Radio (NR) systems.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • DFT-S-OFDM discrete Fourier transform spread orthogonal frequency division multiplexing
  • a wireless multiple-access communications system may include a number of base stations or network access nodes, each supporting communication for multiple communication devices, which may be otherwise known as user equipments (UE) .
  • Some wireless communications systems may reduce power consumption by temporarily discontinuing normal operation (e.g., one or more background processes) . As demand for UE efficiency increases however, some wireless communications systems may fail to provide improved power management, and therefore improved techniques are desired.
  • the described techniques relate to improved methods, systems, devices, and apparatuses that support techniques related to power management for a user equipment (UE) , and more particularly to network-assisted power saving for the UE.
  • UE user equipment
  • the described techniques support determining that a power level of a UE satisfies a threshold (e.g., a power level threshold) .
  • the described techniques may include determining that a power level of a UE satisfies a power level threshold (e.g., a battery ratio is lower than a battery level threshold (for example, 20%battery life) , or a battery ratio is higher than a battery level threshold (for example, 30%battery life) ) for a threshold period (e.g., t duration, where t may be seconds, minutes, etc. ) .
  • a power level threshold e.g., a battery ratio is lower than a battery level threshold (for example, 20%battery life) , or a battery ratio is higher than a battery level threshold (for example, 30%battery life)
  • a threshold period e.g., t duration, where t may be seconds, minutes, etc.
  • the described techniques may include transmitting a message including an indication of a power level indicator value to a base station (e.g., a next-generation NodeBs or a giga-NodeBs (either of which may be referred to as a gNB) ) .
  • a base station e.g., a next-generation NodeBs or a giga-NodeBs (either of which may be referred to as a gNB) .
  • the described techniques may include, in some examples, configuring an information element (IE) of a message, for example, such as a tracking area update message or an attach message, to include a power level indicator value. Additionally or alternatively, the described techniques may include setting a bit of a power level indicator value to indicate to a base station whether a power level of a UE satisfies a threshold.
  • IE information element
  • a base station may determine (or modify) a configuration (e.g., an operational parameter) for a UE, for example, such as configuring a narrower bandwidth part (BWP) , assigning a higher modulation and coding scheme (MCS) , configuring a duration for a connected discontinuous reception (CDRX) cycle, or deactivating new radio (NR) cell measurements, among others.
  • a configuration e.g., an operational parameter
  • MCS modulation and coding scheme
  • CDRX connected discontinuous reception
  • NR new radio
  • a method of wireless communication at a UE may include determining that a power level of the UE satisfies a threshold when in a connected mode or an idle mode, transmitting, to a base station, a request message including an indication of a power level indicator value based on the determining, receiving, from the base station, a response message including a configuration based on the transmitting, and modifying an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory.
  • the instructions may be executable by the processor to cause the apparatus to determine that a power level of the apparatus satisfies a threshold when in a connected mode or an idle mode, transmit, to a base station, a request message including an indication of a power level indicator value based on the determining, receive, from the base station, a response message including a configuration based on the transmitting, and modify an operational parameter of the apparatus based on the configuration relating to the power level indicator value.
  • the apparatus may include means for determining that a power level of the apparatus satisfies a threshold when in a connected mode or an idle mode, transmitting, to a base station, a request message including an indication of a power level indicator value based on the determining, receiving, from the base station, a response message including a configuration based on the transmitting, and modifying an operational parameter of the apparatus based on the configuration relating to the power level indicator value.
  • a non-transitory computer-readable medium storing code for wireless communication at a UE is described.
  • the code may include instructions executable by a processor to determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode, transmit, to a base station, a request message including an indication of a power level indicator value based on the determining, receive, from the base station, a response message including a configuration based on the transmitting, and modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for setting the power level indicator value based on the power level satisfying the threshold, where transmitting the request message including the indication of the power level indicator value may be further based on the setting.
  • setting the power level indicator value may include operations, features, means, or instructions for setting a bit value in an IE of the request message, where the request message includes a tracking area update message or a radio resource control message.
  • the radio resource control message includes an attach message.
  • transmitting, to the base station, the request message may include operations, features, means, or instructions for transmitting a tracking area update message during a tracking area update procedure, the tracking area update message including an IE including the indication of the power level indicator value, and where receiving, from the base station, the response message may be further based on the tracking area update message.
  • transmitting, to the base station, the request message may include operations, features, means, or instructions for transmitting a radio resource control message during a connection procedure, the radio resource control message including an IE including the indication of the power level indicator value, and the connection procedure including an attach procedure, a radio resource control connection establishment procedure, a radio resource control connection configuration procedure, or a radio resource control connection reconfiguration procedure, and where receiving, from the base station, the response message may be further based on the radio resource control message.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a BWP configuration based on the response message, where the response message includes a grant carrying the configuration, and the configuration includes the BWP configuration allocating one or more BWP s to the UE, and where modifying the operational parameter includes communicating according to the BWP configuration.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying an MCS based on the response message, where the configuration includes a modulation order mapping to one or more of a quadrature amplitude modulation scheme or a quadrature phase shift keying modulation scheme, and where modifying the operational parameter includes communicating according to the MCS.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a duration of a CDRX cycle based on the response message, where the configuration includes a CDRX configuration relating to the duration of the CDRX cycle, where modifying the operational parameter includes communicating according to the CDRX cycle.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a radio access technology mode based on the response message, the configuration including an indication of the radio access technology operation mode enabling the UE to refrain from one or more cell measurements according to the radio access technology mode, where the response message includes a tracking area update message or a radio resource control message including the indication of the radio access technology operation mode, and operating in the radio access technology operation mode based on the configuration.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for deactivating new radio (NR) measurements based on the radio access technology mode.
  • NR new radio
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for detecting a cell associated with the radio access technology mode, where the radio access technology mode includes a NR mode and the cell includes an NR cell, transmitting a report including an indication of the detected cell, and enabling a dual connected mode based on the transmitting, where the connected mode includes the dual connected mode.
  • the radio access technology mode includes an LTE mode or a NR mode.
  • the threshold includes one or more of a power level threshold and a temporal threshold.
  • determining that the power level of the UE satisfies the threshold may include operations, features, means, or instructions for determining that the power level of the UE satisfies the power level threshold for a period satisfying the temporal threshold.
  • the UE may be a standalone device or a non-standalone device.
  • a method of wireless communication at a base station may include receiving, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, determining a configuration based on the indication of the power level indicator value, and transmitting, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • the apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory.
  • the instructions may be executable by the processor to cause the apparatus to receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, determine a configuration based on the indication of the power level indicator value, and transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • the apparatus may include means for receiving, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, determining a configuration based on the indication of the power level indicator value, and transmitting, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • a non-transitory computer-readable medium storing code for wireless communication at a base station is described.
  • the code may include instructions executable by a processor to receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, determine a configuration based on the indication of the power level indicator value, and transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • receiving the request message may include operations, features, means, or instructions for receiving a tracking area update message during a tracking area update procedure, the tracking area update message including an IE including the indication of the power level indicator value.
  • receiving the request message may include operations, features, means, or instructions for receiving a radio resource control message during a connection procedure, the radio resource control message including an IE including the indication of the power level indicator value, and the connection procedure including an attach procedure, a radio resource control connection establishment procedure, a radio resource control connection configuration procedure, or a radio resource control connection reconfiguration procedure.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying, in an IE of the request message, a bit value including the power level indicator value, where the request message includes a tracking area update message or a radio resource control message.
  • the radio resource control message includes an attach message.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining a BWP configuration for the UE based on the power level indicator value, where the response message includes a grant carrying the configuration, and the configuration includes the BWP configuration allocating one or more BWP s to the UE.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining an MCS for the UE based on the power level indicator value, where the configuration includes a modulation order mapping to one or more of a quadrature amplitude modulation scheme or a quadrature phase shift keying modulation scheme.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining a duration of a CDRX cycle for the UE based on the power level indicator value, where the configuration includes a CDRX configuration relating to the duration of the CDRX cycle.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining a radio access technology mode for the UE based on the power level indicator value, the configuration including an indication of the radio access technology operation mode, where the response message includes a tracking area update message or a radio resource control message including the indication of the radio access technology operation mode for the UE.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for enabling the UE to refrain from one or more cell measurements according to the radio access technology mode based on the power level indicator value.
  • enabling the UE to refrain from one or more cell measurements may include operations, features, means, or instructions for deactivating NR measurements for the UE.
  • the radio access technology mode includes an LTE mode or a NR mode.
  • the connected mode includes a dual connected mode.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for releasing a secondary cell group from the UE in the dual connected mode based on the power level indicator value.
  • the UE may be a standalone device or a non-standalone device.
  • FIGs. 1 and 2 illustrate examples of wireless communications systems that supports energy savings for standalone and non-standalone devices in accordance with one or more aspects of the present disclosure.
  • FIGs. 3 through 6 illustrate examples of process flows that supports energy savings for standalone and non-standalone devices in accordance with one or more aspects of the present disclosure.
  • FIGs. 7 and 8 show block diagrams of devices that support energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIG. 9 shows a block diagram of a communications manager that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIG. 10 shows a diagram of a system including a device that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIGs. 11 and 12 show block diagrams of devices that support energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIG. 13 shows a block diagram of a communications manager that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIG. 14 shows a diagram of a system including a device that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • FIGs. 15 through 18 show flowcharts illustrating methods that support energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • Some wireless communication systems may have one or more user equipments (UEs) and one or more base stations, for example, next-generation NodeBs or giga-NodeBs (either of which may be referred to as a gNB) that support power management schemes, and more particularly a power management scheme supporting network assistance power saving for UEs.
  • UEs user equipments
  • base stations for example, next-generation NodeBs or giga-NodeBs (either of which may be referred to as a gNB) that support power management schemes, and more particularly a power management scheme supporting network assistance power saving for UEs.
  • Some end users may be unable to or it may be inconvenient for them to charge their UEs. These end users may, however, still depend on their UEs to perform normal operations, in some examples.
  • UEs may support various power saving methods to decrease an amount of power that the UEs consume. For example, end users may reduce power consumption for their UEs by activating a low power mode feature that may temporarily reduce
  • the low power mode feature allows UEs to reduce power consumption by temporarily reducing normal operation, a network of the UE may continue to contribute to inefficient power consumption by the UE.
  • a network of the UE may continue to contribute to inefficient power consumption by the UE.
  • UEs and base stations may support network assistance power saving for the UEs.
  • a UE may determine that a power level of a UE satisfies a threshold. For example, a UE may determine that a power level of a UE satisfies a power level threshold (e.g., a 20%battery life) .
  • a UE may transmit a message including an indication of a power level indicator value to a base station.
  • a UE may configure an information element (IE) of a message, for example, such as a tracking area update message or an attach message, to include a power level indicator value.
  • IE information element
  • a UE may set a bit of a power level indicator value to indicate to a base station whether a power level of a UE satisfies a threshold.
  • a base station may determine (or modify) a configuration (e.g., an operational parameter) for a UE, for example, such as configuring a narrower bandwidth part (BWP) , assigning a higher modulation and coding scheme (MCS) , configuring a duration for a connected discontinuous reception (CDRX) cycle, deactivating new radio (NR) cell measurements, among others.
  • a configuration e.g., an operational parameter
  • MCS modulation and coding scheme
  • CDRX connected discontinuous reception
  • NR new radio
  • the described techniques may support improvements in power savings based on network assistance, among other advantages.
  • supported techniques may include improved UE operations and, in some examples, may promote higher network energy efficiencies, among other benefits.
  • aspects of the disclosure are initially described in the context of a wireless communications system. Aspects of the disclosure are further described in the context of one or more additional wireless communications systems and one or more process flows that relate to aspects for energy savings for standalone and non-standalone devices. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to several aspects related to energy savings for standalone and non-standalone devices.
  • FIG. 1 illustrates an example of a wireless communications system 100 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the wireless communications system 100 includes base stations 105, UEs 115, and a core network 130.
  • the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-A Pro LTE-Advanced Pro
  • NR New Radio
  • wireless communications system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low-cost and low-complexity devices.
  • ultra-reliable e.g., mission critical
  • Base stations 105 may wirelessly communicate with UEs 115 via one or more base station antennas.
  • Base stations 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a Home NodeB, a Home eNodeB, or some other suitable terminology.
  • Wireless communications system 100 may include base stations 105 of different types (e.g., macro or small cell base stations) .
  • the UEs 115 described herein may be able to communicate with various types of base stations 105 and network equipment including macro eNBs, small cell eNBs, gNBs, relay base stations, and the like.
  • Each base station 105 may be associated with a particular geographic coverage area 110 in which communications with various UEs 115 is supported. Each base station 105 may provide communication coverage for a respective geographic coverage area 110 via communication links 125, and communication links 125 between a base station 105 and a UE 115 may utilize one or more carriers. Communication links 125 shown in wireless communications system 100 may include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE 115. Downlink transmissions may also be called forward link transmissions while uplink transmissions may also be called reverse link transmissions.
  • the geographic coverage area 110 for a base station 105 may be divided into sectors making up a portion of the geographic coverage area 110, and each sector may be associated with a cell.
  • each base station 105 may provide communication coverage for a macro cell, a small cell, a hot spot, or other types of cells, or various combinations thereof.
  • a base station 105 may be movable and therefore provide communication coverage for a moving geographic coverage area 110.
  • different geographic coverage areas 110 associated with different technologies may overlap, and overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or by different base stations 105.
  • the wireless communications system 100 may include, for example, a heterogeneous LTE/LTE-A/LTE-A Pro or NR network in which different types of base stations 105 provide coverage for various geographic coverage areas 110.
  • the term “cell” refers to a logical communication entity used for communication with a base station 105 (e.g., over a carrier) , and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) ) operating via the same or a different carrier.
  • a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine-type communication (MTC) , narrowband Internet-of-Things (NB-IoT) , enhanced mobile broadband (eMBB) , or others) that may provide access for different types of devices.
  • MTC machine-type communication
  • NB-IoT narrowband Internet-of-Things
  • eMBB enhanced mobile broadband
  • the term “cell” may refer to a portion of a geographic coverage area 110 (e.g., a sector) over which the logical entity operates.
  • UEs 115 may be dispersed throughout the wireless communications system 100, and each UE 115 may be stationary or mobile.
  • a UE 115 may also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client.
  • a UE 115 may also be a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer.
  • PDA personal digital assistant
  • a UE 115 may also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, or the like, which may be implemented in various articles such as appliances, vehicles, meters, or the like.
  • WLL wireless local loop
  • IoT Internet of Things
  • IoE Internet of Everything
  • MTC massive machine type communications
  • Some UEs 115 may be low cost or low complexity devices, and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) .
  • M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a base station 105 without human intervention.
  • M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay that information to a central server or application program that can make use of the information or present the information to humans interacting with the program or application.
  • Some UEs 115 may be designed to collect information or enable automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
  • Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception simultaneously) . In some examples half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for UEs 115 include entering a power saving “deep sleep” mode when not engaging in active communications, or operating over a limited bandwidth (e.g., according to narrowband communications) . In some cases, UEs 115 may be designed to support critical functions (e.g., mission critical functions) , and a wireless communications system 100 may be configured to provide ultra-reliable communications for these functions.
  • critical functions e.g., mission critical functions
  • a UE 115 may also be able to communicate directly with other UEs 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol) .
  • P2P peer-to-peer
  • D2D device-to-device
  • One or more of a group of UEs 115 utilizing D2D communications may be within the geographic coverage area 110 of a base station 105.
  • Other UEs 115 in such a group may be outside the geographic coverage area 110 of a base station 105, or be otherwise unable to receive transmissions from a base station 105.
  • groups of UEs 115 communicating via D2D communications may utilize a one-to-many (1: M) system in which each UE 115 transmits to every other UE 115 in the group.
  • a base station 105 facilitates the scheduling of resources for D2D communications.
  • D2D communications are carried out between UEs 115 without the involvement of a base
  • Base stations 105 may communicate with the core network 130 and with one another.
  • base stations 105 may interface with the core network 130 through backhaul links 132 (e.g., via an S1, N2, N3, or other interface) .
  • Base stations 105 may communicate with one another over backhaul links 134 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105) or indirectly (e.g., via core network 130) .
  • the core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions.
  • the core network 130 may be an evolved packet core (EPC) , which may include at least one mobility management entity (MME) , at least one serving gateway (S-GW) , and at least one Packet Data Network (PDN) gateway (P-GW) .
  • the MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the EPC.
  • User IP packets may be transferred through the S-GW, which itself may be connected to the P-GW.
  • the P-GW may provide IP address allocation as well as other functions.
  • the P-GW may be connected to the network operators IP services.
  • the operators IP services may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched (PS) Stream
  • At least some of the network devices may include subcomponents such as an access network entity, which may be an example of an access node controller (ANC) .
  • Each access network entity may communicate with UEs 115 through a number of other access network transmission entities, which may be referred to as a radio head, a smart radio head, or a transmission/reception point (TRP) .
  • TRP transmission/reception point
  • various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or consolidated into a single network device (e.g., a base station 105) .
  • Wireless communications system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) .
  • the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band, since the wavelengths range from approximately one decimeter to one meter in length.
  • UHF waves may be blocked or redirected by buildings and environmental features. However, the waves may penetrate structures sufficiently for a macro cell to provide service to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter range (e.g., less than 100 km) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
  • HF high frequency
  • VHF very high frequency
  • Wireless communications system 100 may also operate in a super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band.
  • SHF region includes bands such as the 5 GHz industrial, scientific, and medical (ISM) bands, which may be used opportunistically by devices that may be capable of tolerating interference from other users.
  • ISM bands 5 GHz industrial, scientific, and medical bands
  • Wireless communications system 100 may also operate in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band.
  • EHF extremely high frequency
  • wireless communications system 100 may support millimeter wave (mmW) communications between UEs 115 and base stations 105, and EHF antennas of the respective devices may be even smaller and more closely spaced than UHF antennas. In some cases, this may facilitate use of antenna arrays within a UE 115.
  • mmW millimeter wave
  • the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. Techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
  • wireless communications system 100 may utilize both licensed and unlicensed radio frequency spectrum bands.
  • wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz ISM band.
  • LAA License Assisted Access
  • LTE-U LTE-Unlicensed
  • NR NR technology
  • an unlicensed band such as the 5 GHz ISM band.
  • wireless devices such as base stations 105 and UEs 115 may employ listen-before-talk (LBT) procedures to ensure a frequency channel is clear before transmitting data.
  • LBT listen-before-talk
  • operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA) .
  • Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these.
  • Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD) , time division duplexing (TDD) , or a combination of both.
  • FDD frequency division duplexing
  • TDD time division duplexing
  • base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming.
  • wireless communications system 100 may use a transmission scheme between a transmitting device (e.g., a base station 105) and a receiving device (e.g., a UE 115) , where the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas.
  • MIMO communications may employ multipath signal propagation to increase the spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing.
  • the multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas.
  • Each of the multiple signals may be referred to as a separate spatial stream, and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams.
  • Different spatial layers may be associated with different antenna ports used for channel measurement and reporting.
  • MIMO techniques include single-user MIMO (SU-MIMO) where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) where multiple spatial layers are transmitted to multiple devices.
  • SU-MIMO single-user MIMO
  • MU-MIMO multiple-user MIMO
  • Beamforming which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to shape or steer an antenna beam (e.g., a transmit beam or receive beam) along a spatial path between the transmitting device and the receiving device.
  • Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that signals propagating at particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference.
  • the adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying certain amplitude and phase offsets to signals carried via each of the antenna elements associated with the device.
  • the adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
  • a base station 105 may use multiple antennas or antenna arrays to conduct beamforming operations for directional communications with a UE 115. For instance, some signals (e.g. synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a base station 105 multiple times in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different directions of transmission. Transmissions in different beam directions may be used to identify (e.g., by the base station 105 or a receiving device, such as a UE 115) a beam direction for subsequent transmission and/or reception by the base station 105.
  • some signals e.g. synchronization signals, reference signals, beam selection signals, or other control signals
  • Transmissions in different beam directions may be used to identify (e.g., by the base station 105 or a receiving device, such as a UE 115) a beam direction for subsequent transmission and/or reception by the base station 105.
  • Some signals may be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115) .
  • the beam direction associated with transmissions along a single beam direction may be determined based at least in in part on a signal that was transmitted in different beam directions.
  • a UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions, and the UE 115 may report to the base station 105 an indication of the signal it received with a highest signal quality, or an otherwise acceptable signal quality.
  • a UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) , or transmitting a signal in a single direction (e.g., for transmitting data to a receiving device) .
  • a receiving device may try multiple receive beams when receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals.
  • a receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets applied to signals received at a plurality of antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at a plurality of antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive beams or receive directions.
  • a receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal) .
  • the single receive beam may be aligned in a beam direction determined based at least in part on listening according to different receive beam directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio, or otherwise acceptable signal quality based at least in part on listening according to multiple beam directions) .
  • the antennas of a base station 105 or UE 115 may be located within one or more antenna arrays, which may support MIMO operations, or transmit or receive beamforming.
  • one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower.
  • antennas or antenna arrays associated with a base station 105 may be located in diverse geographic locations.
  • a base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with a UE 115.
  • a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.
  • wireless communications system 100 may be a packet-based network that operate according to a layered protocol stack.
  • PDCP Packet Data Convergence Protocol
  • a Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels.
  • RLC Radio Link Control
  • a Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels.
  • the MAC layer may also use hybrid automatic repeat request (HARQ) to provide retransmission at the MAC layer to improve link efficiency.
  • HARQ hybrid automatic repeat request
  • the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or core network 130 supporting radio bearers for user plane data.
  • RRC Radio Resource Control
  • transport channels may be mapped to physical channels.
  • UEs 115 and base stations 105 may support retransmissions of data to increase the likelihood that data is received successfully.
  • HARQ feedback is one technique of increasing the likelihood that data is received correctly over a communication link 125.
  • HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) .
  • FEC forward error correction
  • ARQ automatic repeat request
  • HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., signal-to-noise conditions) .
  • a wireless device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In other cases, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
  • the radio frames may be identified by a system frame number (SFN) ranging from 0 to 1023.
  • SFN system frame number
  • Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms.
  • a subframe may be further divided into 2 slots each having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods.
  • a subframe may be the smallest scheduling unit of the wireless communications system 100, and may be referred to as a transmission time interval (TTI) .
  • TTI transmission time interval
  • a smallest scheduling unit of the wireless communications system 100 may be shorter than a subframe or may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) or in selected component carriers using sTTIs) .
  • a slot may further be divided into multiple mini-slots containing one or more symbols.
  • a symbol of a mini-slot or a mini-slot may be the smallest unit of scheduling.
  • Each symbol may vary in duration depending on the subcarrier spacing or frequency band of operation, for example.
  • some wireless communications systems may implement slot aggregation in which multiple slots or mini-slots are aggregated together and used for communication between a UE 115 and a base station 105.
  • carrier refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications over a communication link 125.
  • a carrier of a communication link 125 may include a portion of a radio frequency spectrum band that is operated according to physical layer channels for a given radio access technology.
  • Each physical layer channel may carry user data, control information, or other signaling.
  • a carrier may be associated with a pre-defined frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN) ) , and may be positioned according to a channel raster for discovery by UEs 115.
  • E-UTRA evolved universal mobile telecommunication system terrestrial radio access
  • E-UTRA absolute radio frequency channel number
  • Carriers may be downlink or uplink (e.g., in an FDD mode) , or be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
  • signal waveforms transmitted over a carrier may be made up of multiple sub-carriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) .
  • MCM multi-carrier modulation
  • OFDM orthogonal frequency division multiplexing
  • DFT-S-OFDM discrete Fourier transform spread OFDM
  • the organizational structure of the carriers may be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR) .
  • communications over a carrier may be organized according to TTIs or slots, each of which may include user data as well as control information or signaling to support decoding the user data.
  • a carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc. ) and control signaling that coordinates operation for the carrier.
  • acquisition signaling e.g., synchronization signals or system information, etc.
  • control signaling that coordinates operation for the carrier.
  • a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers.
  • Physical channels may be multiplexed on a carrier according to various techniques.
  • a physical control channel and a physical data channel may be multiplexed on a downlink carrier, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques.
  • control information transmitted in a physical control channel may be distributed between different control regions in a cascaded manner (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces) .
  • a carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100.
  • the carrier bandwidth may be one of a number of predetermined bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) .
  • each served UE 115 may be configured for operating over portions or all of the carrier bandwidth.
  • some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a predefined portion or range (e.g., set of subcarriers or RBs) within a carrier (e.g., “in-band” deployment of a narrowband protocol type) .
  • a narrowband protocol type that is associated with a predefined portion or range (e.g., set of subcarriers or RBs) within a carrier (e.g., “in-band” deployment of a narrowband protocol type) .
  • a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related.
  • the number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme) .
  • the more resource elements that a UE 115 receives and the higher the order of the modulation scheme the higher the data rate may be for the UE 115.
  • a wireless communications resource may refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers) , and the use of multiple spatial layers may further increase the data rate for communications with a UE 115.
  • a spatial resource e.g., spatial layers
  • Devices of the wireless communications system 100 may have a hardware configuration that supports communications over a particular carrier bandwidth, or may be configurable to support communications over one of a set of carrier bandwidths.
  • the wireless communications system 100 may include base stations 105 and/or UEs 115 that support simultaneous communications via carriers associated with more than one different carrier bandwidth.
  • the wireless communications system 100 may support communication with a UE 115 on multiple cells or carriers, a feature which may be referred to as carrier aggregation or multi-carrier operation.
  • a UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.
  • wireless communications system 100 may utilize enhanced component carriers (eCCs) .
  • eCC may be characterized by one or more features including wider carrier or frequency channel bandwidth, shorter symbol duration, shorter TTI duration, or modified control channel configuration.
  • an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have a suboptimal or non-ideal backhaul link) .
  • An eCC may also be configured for use in unlicensed spectrum or shared spectrum (e.g., where more than one operator is allowed to use the spectrum) .
  • An eCC characterized by wide carrier bandwidth may include one or more segments that may be utilized by UEs 115 that are not capable of monitoring the whole carrier bandwidth or are otherwise configured to use a limited carrier bandwidth (e.g., to conserve power) .
  • an eCC may utilize a different symbol duration than other component carriers, which may include use of a reduced symbol duration as compared with symbol durations of the other component carriers.
  • a shorter symbol duration may be associated with increased spacing between adjacent subcarriers.
  • a device such as a UE 115 or base station 105, utilizing eCCs may transmit wideband signals (e.g., according to frequency channel or carrier bandwidths of 20, 40, 60, 80 MHz, etc. ) at reduced symbol durations (e.g., 16.67 microseconds) .
  • a TTI in eCC may consist of one or multiple symbol periods. In some cases, the TTI duration (that is, the number of symbol periods in a TTI) may be variable.
  • Wireless communications system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, among others.
  • the flexibility of eCC symbol duration and subcarrier spacing may allow for the use of eCC across multiple spectrums.
  • NR shared spectrum may increase spectrum utilization and spectral efficiency, specifically through dynamic vertical (e.g., across the frequency domain) and horizontal (e.g., across the time domain) sharing of resources.
  • UEs 115 may include a UE communications manager 101, which may manage wireless communications in the wireless communications system 100, as well as power management for the UEs 115.
  • the UE communications manager 101 may determine that a power level of the UE 115 satisfies a threshold.
  • the UE communications manager 101 may, in some examples, configure an IE of a message, for example, such as a tracking area update message or an attach message, to include a power level indicator value.
  • the UE communications manager 101 may set a bit of a power level indicator value to indicate to base stations 105 whether a power level of the UE 115 satisfies a threshold (e.g., 20%battery life) .
  • the UE communications manager 101 may then transmit the message including an indication of a power level indicator value to a base station communications manager 102 of a base station 105.
  • Base stations 105 may also include a base station communications manager 102, which may manage wireless communications in the wireless communications system 100, as well as power management for UEs 115.
  • the base station communications manager 102 may receive a message including an indication of a power level indicator value from a UE 115, and determine a configuration for the UE 115.
  • the base station communications manager 102 may determine (or modify) a configuration (e.g., an operational parameter) for a UE, for example, such as configuring a narrower BWP, assigning a higher MCS, configuring a duration for a connected discontinuous reception (CDRX) cycle, deactivating new radio (NR) cell measurements, among others.
  • the base station communications manager 102 may then transmit, for example, such as to UE communications manager 101 of a UE 115 a message including the configuration, which the UE communications manager 101 of the UE 115 may receive and modify an operational parameter of the UE 115 accordingly to experience improved power savings.
  • the wireless communications system 100 may therefore include features for improved UE operations and, in some examples, may promote higher network energy efficiencies, among other benefits.
  • FIG. 2 illustrates an example of a wireless communications system 200 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the wireless communications system 200 may implement aspects of the wireless communications system 100.
  • the wireless communications system 200 may include a base station 105-a and a UE 115-a, which may be examples of the corresponding devices described with reference to FIG. 1.
  • the UE 115-a may be a standalone device or a non-standalone device
  • the base station 105-a may be an eNB supporting LTE or a gNB supporting NR.
  • the wireless communications system 200 may include a mobility management entity (MME) 205 and an access and mobility management function (AMF) 210, which may be examples of the corresponding devices described with reference to FIG. 1.
  • MME mobility management entity
  • AMF access and mobility management function
  • the MME 205 and the AMF 210 may be part of a core network 130-a, which may be an example of a core network described with reference to FIG. 1.
  • the wireless communications system 200 may include others functions or devices not shown, or may not include one or more of the functions or devices shown.
  • the wireless communications system 200 may support improved UE operations and, in some examples, may promote improved UE reliability, among other benefits.
  • the base station 105-a and the UE 115-a may, in some examples, support multiple radio access technologies including 4G systems such as LTE systems, LTE-A systems, or LTE-A Pro systems, and 5G systems which may be referred to as NR systems.
  • the UE 115-a may support a dual connected mode, which may enable the UE 115-a to connect simultaneously to a 4G LTE master node (e.g., eNB) and a 5G NR secondary node (e.g., gNB) .
  • the UE 115-a may also switch between different radio resource control (RRC) modes.
  • RRC radio resource control
  • the UE 115-a may switch between an idle mode and a connected mode.
  • the base station 105-a may perform a connection-related procedure (e.g., an attach procedure, a cell acquisition procedure, a tracking area update procedure) with the UE 115-a.
  • a connection-related procedure e.g., an attach procedure, a cell acquisition procedure, a tracking area update procedure
  • the base station 105-a and the UE 115-a may perform an attach procedure to establish a connection for communication.
  • the base station 105-a and the UE 115-a may perform a tracking area update procedure when the UE 115-amoves into a tracking area in which the UE 115-a is currently not registered in and when the UE 115-a is in an idle mode.
  • the MME 205 may manage non-access stratum (NAS) (e.g., control plane) functions such as mobility, authentication, and bearer management for the UE 115-a served by the base station 105-a, and the AMF 210 may perform various procedures based on policies, protocols, or the received information.
  • NAS non-access stratum
  • the AMF 210 may support termination of NAS signaling, NAS ciphering and integrity protection, registration management, connection management, mobility management, access authentication and authorization, security context, among others.
  • the UE 115-a may signal information to the base station 105-a that may provide an indication of a power level indicator value of the UE 115-a. For example, the UE 115-a may transmit, to the base station 105-a, a message including a power level indicator value 215, which the base station 105-a may use to configure (or reconfigure) an operational parameter of the UE 115-a for the UE 115-a to experience added power savings.
  • the base station 105-a may determine and transmit a configuration 220 (e.g., an operational parameter) for the UE 115-a, for example, such as configuring a BWP, assigning an MCS, configuring a duration for a CDRX cycle, activating or deactivating NR cell measurements, among others.
  • a configuration 220 e.g., an operational parameter
  • the UE 115-a may determine and transmit a configuration 220 (e.g., an operational parameter) for the UE 115-a, for example, such as configuring a BWP, assigning an MCS, configuring a duration for a CDRX cycle, activating or deactivating NR cell measurements, among others. Examples of energy saving schemes are described with reference to FIGs. 3 through 6, and are discussed in more detail herein.
  • FIG. 3 illustrates an example of a process flow 300 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the process flow 300 may implement aspects of the wireless communications systems 100 and 200, as described with reference to FIGs. 1 and 2.
  • the process flow 300 may include a base station 105-b, a base station 105-c, and a UE 115-b, which may be examples of the corresponding devices described with reference to FIG. 1.
  • the UE 115-b may be a non-standalone device in a connected mode for example, and the base station 105-b may be a master cell group (MCG) (e.g., an eNB supporting LTE) while the base station 105-c may be a secondary cell group (SCG) (e.g., a gNB supporting NR) .
  • MCG master cell group
  • SCG secondary cell group
  • the UE 115-b may thereby have an ENDC dual connection with both the base station 105-b and the base station 105-c.
  • the base station 105-b, the base station 105-c, and the UE 115-b may support multiple radio access technologies including 4G systems such as LTE systems, LTE-A systems, or LTE-A Pro systems, and 5G systems which may be referred to as NR systems.
  • the process flow 300 may include an MME 205-a, which may be examples of the corresponding device described with reference to FIGs. 1 and 2.
  • the MME 205-a may be part of a core network described with reference to FIGs. 1 and 2.
  • the process flow 300 may additionally include others functions or devices not shown, or alternatively may not include one or more of the functions or devices shown.
  • the operations between the base station 105-b, the base station 105-c, the UE 115-b, and the MME 205-a may be transmitted in a different order than the example order shown, or the operations performed by the base station 105-b, the base station 105-c, the UE 115-b, and the MME 205-a may be performed in different orders or at different times. Some operations may also be omitted from the process flow 300, and other operations may be added to the process flow 300. In the example of FIG.
  • the operations performed by the base station 105-b, the base station 105-c, the UE 115-b, and the MME 205-a may support improved UE 115-b operations and, in some examples, may promote improved UE 115-b reliability, among other benefits.
  • the process flow 300 may commence at 305 where the UE 115-b may determine that a power level of the UE 115-b satisfies a threshold.
  • the UE 115-b may determine that a power level of the UE 115-b satisfies a power level threshold (e.g., a battery ratio is lower than a battery level threshold (for example, 20%battery life) ) for a threshold period (e.g., t duration, where t may be seconds, minutes, etc. ) .
  • the UE 115-b may according to the determination, set a bit value in an IE of a message.
  • a power level threshold e.g., a battery ratio is lower than a battery level threshold (for example, 20%battery life)
  • a threshold period e.g., t duration, where t may be seconds, minutes, etc.
  • the message may be a tracking area update message, as such the UE 115-b may set a bit value in an IE of a tracking area update message.
  • the IE may relate to a power level indicator value, for example a battery level indicator.
  • the UE 115-b may set the bit value to a logical one “1” to indicate that a power level of the UE 115-b satisfies a power level threshold (e.g., low battery level) .
  • a power level threshold e.g., low battery level
  • the UE 115-b may set the bit value to a logical zero “0” to indicate that a power level of the UE 115-b satisfies a power level threshold (e.g., high battery level) .
  • the UE 115-b may transmit a tracking area update request message to the base station 105-b as part of a tracking area update procedure when the UE 115-b is in a connected mode.
  • the tracking area update request message may also include an uplink information transfer message.
  • the base station 105-b may forward the tracking area update request message as a non-access stratum (NAS) tracking area update request message to the MME 205-abased on the tracking area update request message received from the UE 115-b.
  • the MME 205-a may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for the UE 115-b served by the base stations 105.
  • non-access stratum e.g., control plane
  • the MME 205-a may transmit a NAS tracking area update accept message to the base station 105-b.
  • the base station 105-b may transmit a tracking area update accept message to the UE 115-b based on the NAS tracking area update accept message received from the MME 205-a.
  • the tracking area update accept message may also include a downlink information transfer message.
  • the base station 105-b and the base station 105-c may use an X2 interface perform X2 resource modifications. For example, to support improved power saving via network assistance, the base station 105-c may determine a configuration (e.g., one or more parameters, for example, a BWP, a duration of a CDRX cycle, an MCS) for the UE 115-b based on the indication of the power level indicator value in the tracking area update request message.
  • a configuration e.g., one or more parameters, for example, a BWP, a duration of a CDRX cycle, an MCS
  • the base station 105-c may then transmit the configuration to the base station 105-b through an X2 interface, and the base station 105-b (e.g., anchor node for the UE 115-b) may forward the configuration (e.g., one or more parameters determined by the base station 105-c) to the UE 115-b, as described in more detail below.
  • the base station 105-c may determine a BWP configuration for the UE 115-b to promote power savings for the UE 115-b by allocating one or more narrower BWPs for the UE 115-b compared to when the UE 115-b is in normal operation.
  • the base station 105-c may therefore transmit the BWP configuration to the base station 105-b for forwarding to the UE 115-b.
  • the base station 105-b may transmit a radio resource control message to the UE 115-b, for example, the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry the BWP configuration determined by the base station 105-c.
  • the base station 105-c may transmit the BWP configuration (e.g., in a radio resource control message) directly to the UE 115-b (e.g., via a signaling radio bearer (SRB) .
  • SRB signaling radio bearer
  • the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry the BWP configuration via an SRB3.
  • the UE 115-b may identify the BWP configuration and may communicate with the base station 105-b (or the base station 105-c) or other UEs (not shown) according to the BWP configuration.
  • the UE 115-b may acknowledge the RRCConnectionReconfiguration message carrying the BWP configuration by transmitting a radio resource control response message to the base station 105-b, for example, the UE 115-b may transmit an RRCConnectionReconfigurationComplete message to the base station 105-b.
  • the base station 105-c may determine a duration of a duration of a CDRX cycle for the UE 115-b to promote added power savings for the UE 115-b. In some examples, the duration of the CDRX cycle may be longer in duration compared to when the UE 115-b is in normal operation. Similar to the example above, the base station 105-c may transmit the duration of the CDRX cycle to the base station 105-b through an X2 interface, and the base station 105-b may forward the duration of the CDRX cycle to the UE 115-b, as described herein.
  • the base station 105-b may alternatively transmit a duration of a CDRX cycle in an RRCConnectionReconfiguration message via an SRB3, similar to the example above.
  • the base station 105-b may transmit a radio resource control message to the UE 115-b, for example, the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry a configuration including the duration of the CDRX cycle determined by the base station 105-c.
  • the UE 115-b may identify the duration of the CDRX cycle and may communicate with the base station 105-b or other UEs (not shown) according to the CDRX cycle.
  • the UE 115-b may acknowledge the RRCConnectionReconfiguration message carrying the CDRX cycle configuration by transmitting a radio resource control response message to the base station 105-b, for example, the UE 115-b may transmit an RRCConnectionReconfigurationComplete message to the base station 105-b.
  • the base station 105-c may additionally or alternatively determine an MCS based on the indication of the power level indicator value in the tracking area update request message.
  • a configuration may include a modulation order mapping to one or more of a QAM scheme or a QPSK modulation scheme.
  • the base station 105-c may to promote added power savings for the UE 115-b by granting the UE 115-b a larger modulation order (e.g., MCS value) than allocating additional physical resource blocks (PRBs) .
  • MCS value modulation order mapping to one or more of a QAM scheme or a QPSK modulation scheme.
  • PRBs physical resource blocks
  • the base station 105-c may transmit the modulation order to the base station 105-b through an X2 interface, and the base station 105-b may forward the modulation order to the UE 115-b, as described herein.
  • the base station 105-b may transmit the modulation order in an RRCConnectionReconfiguration message via an SRB3, similar to the example above.
  • the base station 105-c may transmit the modulation order to the UE 115-b via downlink control information that may be carried on a physical downlink control channel (PDCCH) transmission or PDSCH transmission (e.g., after the UE 115-b enters ENDC dual connection mode, PDSCH may be scheduled by the base station 105-c to the UE 115-b directly) .
  • the UE 115-b may identify the assigned modulation order and may communicate with the base station 105-c or other UEs (not shown) according to the higher modulation order. For example, the UE 115-b may map the modulation order to a QAM modulation scheme (e.g., 16QAM, 64QAM, 256QAM, 1024QAM) or a QPSK modulation scheme.
  • a QAM modulation scheme e.g., 16QAM, 64QAM, 256QAM, 1024QAM
  • QPSK modulation scheme e.g., 16QAM, 64QAM,
  • the UE 115-b may again determine that the power level of the UE 115-b satisfies the threshold. For example, the UE 115-b may determine that a power level of the UE 115-b satisfies a power level threshold (e.g., a battery ratio is higher than a battery level threshold (for example, 30%battery life) ) for a threshold period (e.g., t duration, where t may be seconds, minutes, etc. ) . The UE 115-b may based on the determination, set a bit value in an IE of a message. In the example of FIG.
  • a power level threshold e.g., a battery ratio is higher than a battery level threshold (for example, 30%battery life)
  • a threshold period e.g., t duration, where t may be seconds, minutes, etc.
  • the message may be a tracking area update message, as such the UE 115-b may set a bit value in an IE of a message.
  • the IE may relate to a power level indicator value, for example a battery level indicator.
  • the UE 115-b may set the bit value to a logical zero “0” to indicate that a power level of the UE 115-b satisfies a power level threshold (e.g., higher battery level) .
  • the UE 115-b may initiate a tracking area update procedure with the MME 205-a.
  • the base station 105-b and the base station 105-c may use an X2 interface perform X2 resource modifications.
  • the base station 105-b (or the base station 105-c) and the UE 115-b may exchange one or more radio resource control messages, for example, such as the radio resource control messages 370.
  • the base station 105-c may again determine a BWP configuration for the UE 115-b by allocating one or more normal BWPs for the UE 115-b compared to when the UE 115-b is in a low power operation.
  • the base station 105-c may provide the determined BWP configuration to the base station 105-b via an X2 interface.
  • the base station 105-b may transmit a radio resource control message to the UE 115-b, for example, the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry the normal BWP configuration.
  • the base station 105-c may transmit determined BWP configuration in a radio resource control message to the UE 115-b directly via an SRB. That is, the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry the NR configuration via an SRB3.
  • the UE 115-b may identify the normal BWP configuration and may communicate with the base station 105-b (or the base station 105-c) or other UEs (not shown) according to the BWP configuration. Similarly, the UE 115-b may acknowledge the RRCConnectionReconfiguration message carrying the normal BWP configuration by transmitting a radio resource control response message to the base station 105-b, for example, the UE 115-b may transmit an RRCConnectionReconfigurationComplete message to the base station 105-b.
  • the base station 105-c may modify a duration of the CDRX cycle for the UE 115-b.
  • the modified duration of the CDRX cycle may be shorter in duration compared to when the UE 115-b is in a low power operation.
  • the base station 105-c may provide the modified duration of the CDRX cycle to the base station 105-b via an X2 interface.
  • the base station 105-b may then transmit a radio resource control message to the UE 115-b, for example, the base station 105-b may transmit an RRCConnectionReconfiguration message that may carry a configuration including the modified duration of the CDRX cycle.
  • the base station 105-b may transmit the modified duration of the CDRX cycle in an RRCConnectionReconfiguration message via an SRB3.
  • the UE 115-b may identify the modified duration of the CDRX cycle and may communicate with the base station 105-b or other UEs (not shown) according to the modified CDRX cycle.
  • the UE 115-b may acknowledge the RRCConnectionReconfiguration message carrying the modified CDRX cycle configuration by transmitting a radio resource control response message to the base station 105-b, for example, the UE 115-b may transmit an RRCConnectionReconfigurationComplete message to the base station 105-b.
  • the base station 105-b may communicate with the UE 115-b without any specific changes to scheduling, for example, assigning a higher modulation order for the UE 115-b.
  • the operations performed by the base station 105-b, the base station 105-c, the UE 115-b, and the MME 205-a as part of, but not limited to, process flow 300 may provide improvements to the UE 115-b power consumption. Furthermore, the operations performed by the base station 105-b, the base station 105-c, the UE 115-b, and the MME 205-a as part of, but not limited to, process flow 300 may provide benefits and enhancements to the operation of the UE 115-b. For example, the described power saving method in the process flow 300 may promote improved UE 115-b reliability, among other advantages.
  • the UE 115-b may trigger a tracking area update procedure when a battery level is below a threshold, and the network (e.g., base stations 105) may take related actions to save added UE energy. Additionally, when the battery level is above the threshold, the network may restore normal operations for the UE 115-b.
  • the network e.g., base stations 105
  • FIG. 4 illustrates an example of a process flow 400 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the process flow 400 may implement aspects of the wireless communications systems 100 and 200, as described with reference to FIGs. 1 and 2.
  • the process flow 400 may include a base station 105-d and a UE 115-c, which may be examples of the corresponding devices described with reference to FIG. 1.
  • the UE 115-c may be a standalone device in a connected mode for example, and the base station 105-d may be a gNB supporting NR.
  • the process flow 400 may include an AMF 210-a, which may be examples of the corresponding device described with reference to FIGs. 1 and 2.
  • the AMF 210-a may be part of a core network described with reference to FIGs. 1 and 2.
  • the process flow 400 may additionally include others functions or devices not shown, or alternatively may not include one or more of the functions or devices shown.
  • the operations between the base station 105-d, the UE 115-c, and the AMF 210-a may be transmitted in a different order than the example order shown, or the operations performed by the base station 105-d, the UE 115-c, and the AMF 210-a may be performed in different orders or at different times. Some operations may also be omitted from the process flow 400, and other operations may be added to the process flow 400. In the example of FIG. 4, the operations performed by the base station 105-d, the UE 115-c, and the AMF 210-a may support improved UE 115-c operations and, in some examples, may promote improved UE 115-c reliability, among other benefits.
  • the process flow 400 may commence at 405 where the UE 115-c may determine that a power level of the UE 115-c satisfies a threshold. For example, the UE 115-c may determine that a power level of the UE 115-c satisfies a power level threshold (e.g., a battery ratio is lower than a battery level threshold (for example, 15%battery life) ) for a threshold period (e.g., t duration, where t may be minutes) .
  • a power level threshold e.g., a battery ratio is lower than a battery level threshold (for example, 15%battery life)
  • a threshold period e.g., t duration, where t may be minutes
  • the message may be a tracking area update message, as such the UE 115-c may set a bit value in an IE of a tracking area update message.
  • the IE may correspond to a power level indicator value, for example a battery level indicator.
  • the UE 115-c may set the bit value to a logical one “1” to indicate that a power level of the UE 115-c satisfies a power level threshold (e.g., a low battery level) .
  • a power level threshold e.g., a low battery level
  • the UE 115-c may transmit a tracking area update request message to the base station 105-d as part of a tracking area update procedure when the UE 115-c is in a connected mode.
  • the tracking area update request message may also include an uplink information transfer message.
  • the base station 105-d may forward the tracking area update request message as a NAS tracking area update request message to the AMF 210-abased on the tracking area update request message received from the UE 115-c.
  • the AMF 210-a may provision the UE 115-c with system parameters also referred to herein as public parameters, which may be used to encrypt transmissions between the base station 105-d and the UE 115-c using identity-based cryptography, such as identity-based encryption (IBE) .
  • the base station 105-d and the UE 115-c may also be provisioned with a private key to decrypt the transmissions.
  • the AMF 210-a may transmit a NAS tracking area update accept message to the base station 105-d.
  • the base station 105-d may transmit a tracking area update accept message to the UE 115-c based on the NAS tracking area update accept message received from the AMF 210-a.
  • the tracking area update accept message may also include a downlink information transfer message.
  • the base station 105-d may determine a configuration for the UE 115-c based on the indication of the power level indicator value in the tracking area update request message. In some examples, the base station 105-d may determine a BWP configuration for the UE 115-c to promote power savings for the UE 115-c by allocating one or more narrower BWPs for the UE 115-c compared to when the UE 115-c is in normal operation. At 430, the base station 105-d may transmit a radio resource control message to the UE 115-c, for example, the base station 105-d may transmit an RRCConnectionReconfiguration message that may carry the BWP configuration.
  • the UE 115-c may identify the BWP configuration and may communicate with the base station 105-d or other UEs (not shown) according to the BWP configuration. At 435, the UE 115-c may acknowledge the RRCConnectionReconfiguration message carrying the BWP configuration by transmitting a radio resource control response message to the base station 105-d, for example, the UE 115-c may transmit an RRCConnectionReconfigurationComplete message to the base station 105-d.
  • the base station 105-d may determine a duration of a CDRX cycle for the UE 115-c to promote added power savings for the UE 115-c. In some examples, the duration of the CDRX cycle may be extended in duration compared to when the UE 115-c is in normal operation.
  • the base station 105-d may transmit a radio resource control message to the UE 115-c, for example, the base station 105-d may transmit an RRCConnectionReconfiguration message that may carry a configuration including the extended duration of the CDRX cycle.
  • the UE 115-c may identify the extended duration of the CDRX cycle and may communicate with the base station 105-d or other UEs (not shown) according to the CDRX cycle.
  • the UE 115-c may acknowledge the RRCConnectionReconfiguration message carrying the CDRX cycle configuration by transmitting a radio resource control response message to the base station 105-d, for example, the UE 115-c may transmit an RRCConnectionReconfigurationComplete message to the base station 105-d.
  • the base station 105-d may additionally or alternatively determine an MCS for the UE 115-c based on the indication of the power level indicator value in the tracking area update request message.
  • a configuration may include a modulation order mapping to one or more of a QAM scheme or a QPSK modulation scheme.
  • the base station 105-d may to promote added power savings for the UE 115-c grant the UE 115-c a higher modulation order (e.g., MCS value) than allocating additional PRBs.
  • the base station 105-d may transmit a configuration including the assigned modulation order via one or more PDSCH transmissions.
  • the UE 115-c may identify the assigned modulation order and may communicate with the base station 105-d or other UEs (not shown) according to the higher modulation order. For example, the UE 115-c may map the modulation order to a QAM modulation scheme (e.g., 1024QAM) or a QPSK modulation scheme, and communicate with the base station 105-d according to the mapped modulation scheme. In some examples, the UE 115-c may operate according to a combination of modified operations parameters, for example, such as narrower BWP, extend CDRX cycles, higher MCS, among others to experience added power savings.
  • modified operations parameters for example, such as narrower BWP, extend CDRX cycles, higher MCS, among others to experience added power savings.
  • the UE 115-c may again determine that the power level of the UE 115-c satisfies the threshold. For example, the UE 115-c may determine that a power level of the UE 115-c satisfies a power level threshold (e.g., a battery ratio is higher than a battery level threshold (for example, 40%battery life) ) for a threshold period (e.g., t duration, where t may be minutes) .
  • a power level threshold e.g., a battery ratio is higher than a battery level threshold (for example, 40%battery life)
  • a threshold period e.g., t duration, where t may be minutes
  • the message may be a tracking area update message, as such the UE 115-c may set a bit value in an IE of a tracking area update message.
  • the UE 115-c may set the bit value to a logical zero “0” to indicate that a power level of the UE 115-c satisfies a power level threshold (e.g., higher battery level) .
  • a power level threshold e.g., higher battery level
  • the UE 115-c may initiate a tracking area update procedure with the AMF 210-a.
  • the base station 105-d and the UE 115-c may exchange one or more radio resource control messages, for example, such as the radio resource control messages 465.
  • the base station 105-d may determine a BWP configuration for the UE 115-c by allocating one or more BWPs for the UE 115-c that may be wider BPWs compared to when the UE 115-c is in a low power operation.
  • the base station 105-d may transmit a radio resource control message to the UE 115-c, for example, the base station 105-d may transmit an RRCConnectionReconfiguration message that may carry the normal BWP configuration.
  • the UE 115-c may identify the normal BWP configuration and may communicate with the base station 105-d or other UEs (not shown) according to the BWP configuration.
  • the UE 115-c may accept the RRCConnectionReconfiguration message carrying the normal BWP configuration by transmitting a radio resource control response message to the base station 105-d, for example, the UE 115-c may transmit an RRCConnectionReconfigurationComplete message to the base station 105-d.
  • the base station 105-d may modify a duration of the CDRX cycle for the UE 115-c.
  • the modified duration of the CDRX cycle may be shorter in duration compared to when the UE 115-c is in the low power operation.
  • the base station 105-d may transmit a radio resource control message to the UE 115-c, for example, the base station 105-d may transmit an RRCConnectionReconfiguration message that may carry a configuration including the modified duration of the CDRX cycle.
  • the UE 115-c may identify the modified duration of the CDRX cycle and may communicate with the base station 105-d or other UEs (not shown) according to the modified CDRX cycle.
  • the UE 115-c may acknowledge the RRCConnectionReconfiguration message carrying the modified CDRX cycle configuration by transmitting a radio resource control response message to the base station 105-d, for example, the UE 115-c may transmit an RRCConnectionReconfigurationComplete message to the base station 105-d.
  • the base station 105-d may communicate with the UE 115-c without any specific changes to scheduling, for example, assigning a higher modulation order for the UE 115-c.
  • the operations performed by the base station 105-d, the UE 115-c, and the AMF 210-a as part of, but not limited to, process flow 400 may provide improvements to the UE 115-c power savings. Furthermore, the operations performed by the base station 105-d, the UE 115-c, and the AMF 210-a as part of, but not limited to, process flow 400 may provide benefits and enhancements to the operation of the UE 115-c. For example, the described power saving method in the process flow 400 may promote improved UE 115-c reliability, among other advantages.
  • the described power saving method may therefore allow the UE 115-c to activate a tracking area update procedure when a battery level is below a threshold, and the network (e.g., base stations 105) may perform related operations to support extra UE power savings. Additionally, when the battery level is above the threshold, the network may return normal operations for the UE 115-c.
  • the network e.g., base stations 105
  • FIG. 5 illustrates an example of a process flow 500 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the process flow 500 may implement aspects of the wireless communications systems 100 and 200, as described with reference to FIGs. 1 and 2.
  • the process flow 500 may include a base station 105-e, a base station 105-f, and a UE 115-d, which may be examples of the corresponding devices described with reference to FIG. 1.
  • the UE 115-d may be a non-standalone device powering ON or in an idle mode for example, and the base station 105-e may be an MCG (e.g., an eNB supporting LTE) while the base station 105-f may be an SCG (e.g., a gNB supporting NR) . Therefore, the base station 105-e, the base station 105-f, and the UE 115-d may support multiple radio access technologies including 4G systems such as LTE systems, LTE-A systems, or LTE-A Pro systems, and 5G systems which may be referred to as NR systems. Additionally, the process flow 500 may include an MME 205-b, which may be examples of the corresponding device described with reference to FIGs. 1 and 2. For example, the MME 205-b may be part of a core network described with reference to FIGs. 1 and 2. The process flow 500 may additionally include others functions or devices not shown, or alternatively may not include one or more of the functions or devices shown.
  • MCG
  • the operations between the base station 105-e, the base station 105-f, the UE 115-d, and the MME 205-b may be transmitted in a different order than the example order shown, or the operations performed by the base station 105-e, the base station 105-f, the UE 115-d, and the MME 205-b may be performed in different orders or at different times. Some operations may also be omitted from the process flow 500, and other operations may be added to the process flow 500. In the example of FIG.
  • the operations performed by the base station 105-e, the base station 105-f, the UE 115-d, and the MME 205-b may support improved UE 115-d operations and, in some examples, may promote improved UE 115-d reliability, among other benefits.
  • the process flow 500 may commence at 505, with the UE 115-d powering ON or when the UE 115-d is in an idle mode, the UE 115-d may determine that a power level of the UE 115-d satisfies a threshold. For example, the UE 115-d may determine that a power level of the UE 115-d satisfies a power level threshold (e.g., a battery ratio is lower than a battery level threshold (for example, 10%battery life) ) for a threshold period (e.g., t duration, where t may be minutes) .
  • a power level threshold e.g., a battery ratio is lower than a battery level threshold (for example, 10%battery life)
  • a threshold period e.g., t duration, where t may be minutes
  • the message may be a radio resource control message (e.g., an attach message) or a tracking area update message, as such the UE 115-d may set a bit value in an IE of an attach message or a tracking area update message.
  • the IE may correspond to a power level indicator value, for example a battery level indicator.
  • the UE 115-d may set the bit value to a logical one “1” to indicate that a power level of the UE 115-d satisfies a power level threshold (e.g., a low battery level) .
  • a power level threshold e.g., a low battery level
  • the UE 115-d may transmit a tracking area update request message (or an attach message) to the base station 105-e as part of a connection procedure (e.g., a random access procedure, an attach procedure, a tracking area update procedure) .
  • a connection procedure e.g., a random access procedure, an attach procedure, a tracking area update procedure
  • the UE 115-d may transmit an RRCConnectionRequest message, which may include a power level indicator value.
  • the UE 115-d may use an uplink shared channel (UL-SCH) allocation to transmit the RRCConnectionRequest message to the base station 105-e.
  • UL-SCH uplink shared channel
  • the RRCConnectionRequest message may include a cell radio network temporary identifier (C-RNTI) , a UE identifier (e.g., a temporary mobile subscriber identity (TMSI) ) , or an establishment cause for a connection, among other information.
  • C-RNTI cell radio network temporary identifier
  • TMSI temporary mobile subscriber identity
  • the base station 105-e may respond and transmit a radio resource control message, for example, such as a RRCConnectionSetup message to the UE 115-d.
  • the UE 115-d may respond and transmit a radio resource control message, such as a RRCConnectionSetupComplete message to the base station 105-e.
  • the base station 105-e may transmit the RRCConnectionSetupComplete message via a downlink shared channel (DL-SCH) .
  • the RRCConnectionSetupComplete message may create a signaling radio bearer (SRB) .
  • the RRCConnectionSetupComplete message may also include uplink power control information, power head room information, among other information.
  • the base station 105-e may forward the tracking area update request message (or the attach message) as a NAS tracking area update request message to the MME 205-b based on the tracking area update request message (or the attach message) received from the UE 115-d.
  • the MME 205-b may provision the UE 115-d with system parameters also referred to herein as public parameters, which may be used to encrypt transmissions between the base station 105-e and the UE 115-d using identity-based cryptography.
  • the base station 105-e and the UE 115-d may also be provisioned with a private key to decrypt the transmissions.
  • the MME 205-b may transmit a NAS tracking area update accept message to the base station 105-e.
  • the base station 105-e may transmit a tracking area update accept message to the UE 115-d based on the NAS tracking area update accept message received from the MME 205-b.
  • the tracking area update accept message may also include a downlink information transfer message.
  • the base station 105-e may determine a configuration for the UE 115-d based on the indication of the power level indicator value in the tracking area update request message (or the attach message) . For example, the base station 105-e (or the base station 105-f) may determine a radio access technology mode for the UE 115-d based on the power level indicator value. In some examples, the base station 105-e (or the base station 105-f) may enable the UE 115-b to refrain from one or more cell measurements according to the radio access technology mode. For example, the base station 105-e (or the base station 105-f) may deactivate NR measurements for the UE 115-d, so that the UE 115-d wouldn’ t measure NR neighbor cells and therefore experience added power saving.
  • the base station 105-e may transmit a radio resource control message to the UE 115-d, for example, the base station 105-e may transmit an RRCConnectionReconfiguration message that may carry the configuration (e.g., radio access technology mode) .
  • the UE 115-d may identify the configuration and may configure or modify an operation parameter, for example, deactivate NR measurements for neighboring NR cells.
  • the UE 115-d may acknowledge the RRCConnectionReconfiguration message carrying the configuration by transmitting a radio resource control response message to the base station 105-e, for example, the UE 115-d may transmit an RRCConnectionReconfigurationComplete message to the base station 105-e.
  • the described power saving method may therefore allow the UE 115-d to operate according to a single radio access technology mode, for example, such as LTE and avoid cell measurements on neighboring cells support different a radio access technology, for example, NR.
  • the UE 115-d may again determine that the power level of the UE 115-d satisfies the threshold. For example, the UE 115-d may determine that a power level of the UE 115-d satisfies a power level threshold (e.g., a battery ratio is higher than a battery level threshold (for example, 20%battery life) ) for a threshold period (e.g., t duration, where t may be minutes) .
  • a power level threshold e.g., a battery ratio is higher than a battery level threshold (for example, 20%battery life)
  • a threshold period e.g., t duration, where t may be minutes
  • the message may be a tracking area update message (or an attach message) , as such the UE 115-d may set a bit value in an IE of a tracking area update message.
  • the UE 115-d may set the bit value to a logical one “0” to indicate that a power level of the UE 115-d satisfies a power level threshold (e.g., higher battery level) .
  • a power level threshold e.g., higher battery level
  • the UE 115-d may initiate a tracking area update procedure with the MME 205-a.
  • the base station 105-e (or the base station 105-f) and the UE 115-d may exchange one or more radio resource control messages to reconfigure one or more operational parameters of the UE 115-d.
  • the base station 105-e (or the base station 105-f) may determine a radio access technology mode for the UE 115-d based on the power level indicator value.
  • the base station 105-e (or the base station 105-f) may enable the UE 115-b to perform one or more cell measurements according to the radio access technology mode.
  • the base station 105-e may activate NR measurements for the UE 115-d, so that the UE 115-d may measure NR neighbor cells (e.g., the base station 105-f) .
  • the base station 105-e may transmit a radio resource control message to the UE 115-d, for example, the base station 105-e may transmit an RRCConnectionReconfiguration message that may carry the configuration (e.g., radio access technology mode) .
  • the UE 115-d may identify the configuration and may configure or modify an operation parameter, for example, activate NR measurements for neighboring NR cells.
  • the UE 115-d may acknowledge the RRCConnectionReconfiguration message carrying the configuration by transmitting a radio resource control response message to the base station 105-e, for example, the UE 115-d may transmit an RRCConnectionReconfigurationComplete message to the base station 105-e.
  • the UE 115-d may perform measurements on one or more neighboring NR cells (e.g., the base station 105-f) .
  • the UE 115-d may transmit a report, which may indicate one or metrics of a secondary cell (e.g. NR cell) , for example, such as a reference signal received power (RSRP) .
  • RSRP reference signal received power
  • the base station 105-f may transmit to the base station 105-e via an X2 interface a resource allocation for the UE 115-d based on the report.
  • the base station 105-f may provide an SCG configuration to the base station 105-e via an X2 interface.
  • the base station 105-e may transmit a radio resource control message to the UE 115-d, for example, the base station 105-e may transmit an RRCConnectionReconfiguration message that may carry information for the UE 115-d to configure (e.g., release or add) an SCG (e.g., the base station 105-f) when the UE 115-d is in a dual connected mode.
  • the base station 105-e may assist in managing an SCG connection with the base station 105-f.
  • the base station 105-f may transmit the SCG configuration in an RRCConnectionReconfiguration message via an SRB3 directly to the UE 115-d.
  • the UE 115-d may transmit a radio resource control response message to the base station 105-e, for example, the UE 115-d may transmit an RRCConnectionReconfigurationComplete message to the base station 105-e. Therefore, the base stations 105 may configure the UE 115-d with NR measurements and configure the UE 115-d to a dual connected mode, based on the UE 115-d reporting detected NR neighboring cells.
  • the operations performed by the base station 105-e, the base station 105-f, the UE 115-d, and the MME 205-b as part of, but not limited to, process flow 500 may provide improvements to the UE 115-d power consumption. Furthermore, the operations performed by the base station 105-e, the base station 105-f, the UE 115-d, and the MME 205-b as part of, but not limited to, process flow 500 may provide benefits and enhancements to the operation of the UE 115-d. For example, the described power saving method in the process flow 500 may promote higher network energy efficiencies, among other advantages.
  • FIG. 6 illustrates an example of a process flow 600 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the process flow 600 may implement aspects of the wireless communications systems 100 and 200, as described with reference to FIGs. 1 and 2.
  • the process flow 600 may include a base station 105-g, a base station 105-h, and a UE 115-e, which may be examples of the corresponding devices described with reference to FIG. 1.
  • the UE 115-e may be a non-standalone device supporting a dual connected mode for example, and the base station 105-g may be an MCG (e.g., an eNB supporting LTE) while the base station 105-h may be a SCG (e.g., a gNB supporting NR) .
  • the UE 115-e may have an ENDC dual connection with both the base station 105-g and the base station 105-h. Therefore, the base station 105-g, the base station 105-h, and the UE 115-e may support multiple radio access technologies including 4G systems and 5G systems.
  • the process flow 600 may include an MME 205-c, which may be examples of the corresponding device described with reference to FIGs. 1 and 2.
  • the MME 205-c may be part of a core network described with reference to FIGs. 1 and 2.
  • the process flow 600 may additionally include others functions or devices not shown, or alternatively may not include one or more of the functions or devices shown.
  • the operations between the base station 105-g, the base station 105-h, the UE 115-e, and the MME 205-c may be transmitted in a different order than the example order shown, or the operations performed by the base station 105-g, the base station 105-h, the UE 115-e, and the MME 205-c may be performed in different orders or at different times. Some operations may also be omitted from the process flow 600, and other operations may be added to the process flow 600. In the example of FIG.
  • the operations performed by the base station 105-g, the base station 105-h, the UE 115-e, and the MME 205-c may support improved UE 115-e operations and, in some examples, may promote improved UE 115-e reliability, among other benefits.
  • the process flow 600 may commence, and the UE 115-e may determine that a power level of the UE 115-e satisfies a threshold.
  • the UE 115-e may determine that a power level of the UE 115-e satisfies a power level threshold (e.g., a battery ratio is lower than a battery level threshold.
  • the UE 115-e may follow the determination, set a bit value in an IE of a message.
  • the message may be a tracking area update message, as such the UE 115-e may set a bit value in an IE of a tracking area update message.
  • the IE may indicate a power level indicator value, for example a battery level indicator.
  • the UE 115-e may set the bit value to a logical one “1” to indicate that a power level of the UE 115-e satisfies a power level threshold (e.g., a low battery level) .
  • a power level threshold e.g., a low battery level
  • the UE 115-e may transmit a tracking area update request message to the base station 105-g as part of a tracking area update procedure.
  • the tracking area update request message may also include an uplink information transfer message.
  • the base station 105-g may forward the tracking area update request message as a NAS tracking area update request message to the MME 205-c based on the tracking area update request message received from the UE 115-e.
  • the MME 205-c may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for the UE 115-e served by the base stations 105.
  • non-access stratum e.g., control plane
  • the MME 205-c may transmit a NAS tracking area update accept message to the base station 105-g.
  • the base station 105-g may transmit a tracking area update accept message to the UE 115-e based on the NAS tracking area update accept message received from the MME 205-c.
  • the tracking area update accept message may also include a downlink information transfer message.
  • the base station 105-g and the base station 105-h may use an X2 interface perform X2 resource deallocation.
  • the base station 105-h may determine radio access technology mode configuration for the UE 115-e to promote power savings for the UE 115-e by releasing NR related resource for the UE 115-e. For example, the base station 105-h may determine to release NR related resources for the UE 115-e.
  • the base station 105-g may transmit a radio resource control message to the UE 115-b, for example, the base station 105-g may transmit an RRCConnectionReconfiguration message that may carry the radio access technology mode configuration, which may release NR related resources.
  • the base station 105-h may transmit a radio resource control message that may carry the radio access technology mode configuration, which may release NR related resources to the UE 115-b directly via an SRB.
  • the UE 115-e may identify the radio access technology mode configuration and may release NR related resources.
  • the UE 115-e may acknowledge the RRCConnectionReconfiguration message carrying the radio access technology mode configuration by transmitting a radio resource control response message to the base station 105-g, for example, the UE 115-e may transmit an RRCConnectionReconfigurationComplete message to the base station 105-g.
  • the UE 115-e may operate in a single radio access technology mode, for example, such as LTE to experience added power savings.
  • the UE 115-e may again determine that the power level of the UE 115-e satisfies the threshold.
  • the UE 115-e may initiate a tracking area update procedure with the MME 205-c.
  • the base station 105-g and the base station 105-h may use an X2 interface to perform X2 resource modifications for the UE 115-e.
  • the base station 105-g and the UE 115-e may exchange one or more radio resource control messages, for example, at 660-a, the base station 105-g may transmit a radio resource control message to the UE 115-e, for example, the base station 105-g may transmit an RRCConnectionReconfiguration message that may carry information for the UE 115-e to configure dual radio access technology modes when the UE 115-e is in a dual connected mode.
  • the base station 105-h may restore (e.g., reassign, reallocate) NR related resources for the UE 115-e previously released or add newly NR related resources for the UE 115-e.
  • the base station 105-g may assist in managing a SCG connection with the base station 105-h.
  • the base station 105-h may modify a radio access technology mode configuration and may transmit the modified configuration to the base station 105-g through the X2 interface.
  • the base station 105-h may transmit, to the UE 115-b directly via an SRB, a radio resource control message that may carry the modified radio access technology mode configuration, which may add NR related resources.
  • the UE 115-e may transmit a radio resource control response message to the base station 105-g, for example, the UE 115-e may transmit an RRCConnectionReconfigurationComplete message to the base station 105-g acknowledging he modified configuration. Therefore, according to the process flow 600 the UE 115-e may switch between being in a connected mode supporting a single radio access technology and a dual connected mode where the UE 115-e supports multiple radio access technologies.
  • the operations performed by the base station 105-g, the base station 105-h, the UE 115-e, and the MME 205-c as part of, but not limited to, process flow 600 may therefore provide improvements to the UE 115-e power consumption, among other advantages.
  • FIG. 7 shows a block diagram 700 of a device 705 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 705 may be an example of aspects of a UE 115 as described herein.
  • the device 705 may include a receiver 710, a UE communications manager 715, and a transmitter 720.
  • the device 705 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to energy savings for standalone and non-standalone devices, etc. ) . Information may be passed on to other components of the device 705.
  • the receiver 710 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the receiver 710 may utilize a single antenna or a set of antennas.
  • the UE communications manager 715 may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode, transmit, to a base station, a request message including an indication of a power level indicator value based on the determining, receive, from the base station, a response message including a configuration based on the transmitting, and modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the UE communications manager 715 may be an example of aspects of the UE communications manager 1010 described herein.
  • the UE communications manager 715 may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the UE communications manager 715, or its sub-components may be executed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • code e.g., software or firmware
  • ASIC application-specific integrated circuit
  • the UE communications manager 715 may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical components.
  • the UE communications manager 715, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the UE communications manager 715, or its sub-components may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
  • I/O input/output
  • the actions performed by the UE communications manager 715 as described herein may be implemented to realize one or more potential advantages.
  • the UE communications manager 715 may reduce power consumption and increase communication reliability at device 705 by allowing the device 705 to signal a power level indicator value to a network device (e.g., base station 105) and receive a configuration (or reconfiguration) of an operational parameter of the device 705.
  • the improvements in power saving and communication reliability may further increase battery life at device 705 (for example, by reducing a duration of CDRX, deactivating NR measurements, etc. ) .
  • the transmitter 720 may transmit signals generated by other components of the device 705.
  • the transmitter 720 may be collocated with a receiver 710 in a transceiver module.
  • the transmitter 720 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the transmitter 720 may utilize a single antenna or a set of antennas.
  • FIG. 8 shows a block diagram 800 of a device 805 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 805 may be an example of aspects of a device 705, or a UE 115 as described herein.
  • the device 805 may include a receiver 810, a UE communications manager 815, and a transmitter 835.
  • the device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to energy savings for standalone and non-standalone devices, etc. ) . Information may be passed on to other components of the device 805.
  • the receiver 810 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the receiver 810 may utilize a single antenna or a set of antennas.
  • the UE communications manager 815 may be an example of aspects of the UE communications manager 715 as described herein.
  • the UE communications manager 815 may include a power level component 820, a message component 825, and an operation component 830.
  • the UE communications manager 815 may be an example of aspects of the UE communications manager 1010 described herein.
  • the power level component 820 may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode.
  • the message component 825 may transmit, to a base station, a request message including an indication of a power level indicator value based on the determining and receive, from the base station, a response message including a configuration based on the transmitting.
  • the operation component 830 may modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the transmitter 835 may transmit signals generated by other components of the device 805.
  • the transmitter 835 may be collocated with a receiver 810 in a transceiver module.
  • the transmitter 835 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the transmitter 835 may utilize a single antenna or a set of antennas.
  • FIG. 9 shows a block diagram 900 of a UE communications manager 905 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the UE communications manager 905 may be an example of aspects of a UE communications manager 715, a UE communications manager 815, or a UE communications manager 1010 described herein.
  • the UE communications manager 905 may include a power level component 910, a message component 915, an operation component 920, a BWP component 925, a MCS component 930, a CDRX component 935, a mode component 940, a detection component 945, and a report component 950.
  • Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the power level component 910 may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode. In some examples, the power level component 910 may determine that the power level of the UE satisfies the power level threshold for a period satisfying the temporal threshold. In some cases, the threshold includes one or more of a power level threshold and a temporal threshold. In some cases, the UE is a standalone device or a non-standalone device.
  • the message component 915 may transmit, to a base station, a request message including an indication of a power level indicator value based on the determining. In some examples, the message component 915 may receive, from the base station, a response message including a configuration based on the transmitting. In some examples, the message component 915 may set a bit value in an IE of the request message, where the request message includes a tracking area update message or a radio resource control message. The message component 915 may set the power level indicator value based on the power level satisfying the threshold, where transmitting the request message including the indication of the power level indicator value is further based on the setting.
  • the message component 915 may transmit a tracking area update message during a tracking area update procedure, the tracking area update message including an IE including the indication of the power level indicator value, where receiving, from the base station, the response message is further based on the tracking area update message.
  • the message component 915 may transmit a radio resource control message during a connection procedure, the radio resource control message including an IE including the indication of the power level indicator value, and the connection procedure including an attach procedure, a radio resource control connection establishment procedure, a radio resource control connection configuration procedure, or a radio resource control connection reconfiguration procedure, where receiving, from the base station, the response message is further based on the radio resource control message.
  • the radio resource control message includes an attach message.
  • the operation component 920 may modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the BWP component 925 may identify a BWP configuration based on the response message, where the response message includes a grant carrying the configuration, and the configuration includes the BWP configuration allocating one or more BWPs to the UE, where modifying the operational parameter includes communicating according to the BWP configuration.
  • the MCS component 930 may identify an MCS based on the response message, where the configuration includes a modulation order mapping to one or more of a quadrature amplitude modulation scheme or a quadrature phase shift keying modulation scheme, where modifying the operational parameter includes communicating according to the MCS.
  • the CDRX component 935 may identify a duration of a CDRX cycle based on the response message, where the configuration includes a CDRX configuration relating to the duration of the CDRX cycle, where modifying the operational parameter includes communicating according to the CDRX cycle.
  • the mode component 940 may identify a radio access technology mode based on the response message, the configuration including an indication of the radio access technology operation mode enabling the UE to refrain from one or more cell measurements according to the radio access technology mode, where the response message includes a tracking area update message or a radio resource control message including the indication of the radio access technology operation mode.
  • the mode component 940 may operate in the radio access technology operation mode based on the configuration.
  • the mode component 940 may deactivate NR measurements based on the radio access technology mode.
  • enabling a dual connected mode based on the transmitting, where the connected mode includes the dual connected mode.
  • the radio access technology mode includes an LTE mode or an NR mode.
  • the detection component 945 may detect a cell associated with the radio access technology mode, where the radio access technology mode includes a NR mode and the cell includes an NR cell.
  • the report component 950 may transmit a report including an indication of the detected cell.
  • FIG. 10 shows a diagram of a system 1000 including a device 1005 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 1005 may be an example of or include the components of device 705, device 805, or a UE 115 as described herein.
  • the device 1005 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a UE communications manager 1010, an I/O controller 1015, a transceiver 1020, an antenna 1025, memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., bus 1045) .
  • buses e.g., bus 1045
  • the UE communications manager 1010 may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode, transmit, to a base station, a request message including an indication of a power level indicator value based on the determining, receive, from the base station, a response message including a configuration based on the transmitting, and modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the I/O controller 1015 may manage input and output signals for the device 1005.
  • the I/O controller 1015 may also manage peripherals not integrated into the device 1005.
  • the I/O controller 1015 may represent a physical connection or port to an external peripheral.
  • the I/O controller 1015 may utilize an operating system such as or another known operating system.
  • the I/O controller 1015 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device.
  • the I/O controller 1015 may be implemented as part of a processor.
  • a user may interact with the device 1005 via the I/O controller 1015 or via hardware components controlled by the I/O controller 1015.
  • the transceiver 1020 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 1020 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 1020 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the device 1005 may include a single antenna 1025. However, in some cases the device 1005 may have more than one antenna 1025, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 1030 may include RAM and ROM.
  • the memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform various functions described herein.
  • the memory 1030 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • the code 1035 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 1035 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code 1035 may not be directly executable by the processor 1040 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • the processor 1040 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1040 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 1040.
  • the processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting energy savings for standalone and non-standalone devices) .
  • the processor 1040 may reduce power consumption and increase communication reliability at the device 1005 by allowing the device 1005 to signal a power level indicator value to a network device (e.g., a base station 105) and receive a configuration (or reconfiguration) of an operational parameter of the device 1005.
  • the improvements in power saving and communication reliability may further increase battery life at the device 1005 (for example, by reducing a duration of CDRX, deactivating NR measurements, etc. ) .
  • FIG. 11 shows a block diagram 1100 of a device 1105 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 1105 may be an example of aspects of a base station 105 as described herein.
  • the device 1105 may include a receiver 1110, a base station communications manager 1115, and a transmitter 1120.
  • the device 1105 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to energy savings for standalone and non-standalone devices, etc. ) . Information may be passed on to other components of the device 1105.
  • the receiver 1110 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the receiver 1110 may utilize a single antenna or a set of antennas.
  • the base station communications manager 1115 may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value, and determine a configuration based on the indication of the power level indicator value.
  • the base station communications manager 1115 may be an example of aspects of the base station communications manager 1410 described herein.
  • the base station communications manager 1115 may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the base station communications manager 1115, or its sub-components may be executed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • code e.g., software or firmware
  • ASIC application-specific integrated circuit
  • the base station communications manager 1115 may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical components.
  • the base station communications manager 1115, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the base station communications manager 1115, or its sub-components may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
  • I/O input/output
  • the transmitter 1120 may transmit signals generated by other components of the device 1105.
  • the transmitter 1120 may be collocated with a receiver 1110 in a transceiver module.
  • the transmitter 1120 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the transmitter 1120 may utilize a single antenna or a set of antennas.
  • FIG. 12 shows a block diagram 1200 of a device 1205 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 1205 may be an example of aspects of a device 1105, or a base station 105 as described herein.
  • the device 1205 may include a receiver 1210, a base station communications manager 1215, and a transmitter 1230.
  • the device 1205 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to energy savings for standalone and non-standalone devices, etc. ) . Information may be passed on to other components of the device 1205.
  • the receiver 1210 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the receiver 1210 may utilize a single antenna or a set of antennas.
  • the base station communications manager 1215 may be an example of aspects of the base station communications manager 1115 as described herein.
  • the base station communications manager 1215 may include a message component 1220 and a configuration component 1225.
  • the base station communications manager 1215 may be an example of aspects of the base station communications manager 1410 described herein.
  • the message component 1220 may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value.
  • the configuration component 1225 may determine a configuration based on the indication of the power level indicator value.
  • the message component 1220 may transmit, to the UE, a response message including a configuration based on the indication of the power level indicator value.
  • the transmitter 1230 may transmit signals generated by other components of the device 1205.
  • the transmitter 1230 may be collocated with a receiver 1210 in a transceiver module.
  • the transmitter 1230 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the transmitter 1230 may utilize a single antenna or a set of antennas.
  • FIG. 13 shows a block diagram 1300 of a base station communications manager 1305 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the base station communications manager 1305 may be an example of aspects of a base station communications manager 1115, a base station communications manager 1215, or a base station communications manager 1410 described herein.
  • the base station communications manager 1305 may include a message component 1310, a configuration component 1315, a BWP component 1320, a MCS component 1325, a CDRX component 1330, and a mode component 1335. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the message component 1310 may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value. In some examples, the message component 1310 may transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value. In some examples, the message component 1310 may receive a tracking area update message during a tracking area update procedure, the tracking area update message including an IE including the indication of the power level indicator value.
  • the message component 1310 may receive a radio resource control message during a connection procedure, the radio resource control message including an IE including the indication of the power level indicator value, and the connection procedure including an attach procedure, a radio resource control connection establishment procedure, a radio resource control connection configuration procedure, or a radio resource control connection reconfiguration procedure.
  • the message component 1310 may identify, in an IE of the request message, a bit value including the power level indicator value, where the request message includes a tracking area update message or a radio resource control message.
  • the radio resource control message includes an attach message.
  • the UE is a standalone device or a non-standalone device.
  • the configuration component 1315 may determine a configuration based on the indication of the power level indicator value.
  • the BWP component 1320 may determine a BWP configuration for the UE based on the power level indicator value, where the response message includes a grant carrying the configuration, and the configuration includes the BWP configuration allocating one or more BWPs to the UE.
  • the MCS component 1325 may determine an MCS for the UE based on the power level indicator value, where the configuration includes a modulation order mapping to one or more of a QAM scheme or a QPSK modulation scheme.
  • the CDRX component 1330 may determine a duration of a CDRX cycle for the UE based on the power level indicator value, where the configuration includes a CDRX configuration relating to the duration of the CDRX cycle.
  • the mode component 1335 may determine a radio access technology mode for the UE based on the power level indicator value, the configuration including an indication of the radio access technology operation mode, where the response message includes a tracking area update message or a radio resource control message including the indication of the radio access technology operation mode for the UE. In some examples, the mode component 1335 may enable the UE to refrain from one or more cell measurements according to the radio access technology mode based on the power level indicator value. In some examples, the mode component 1335 may deactivate NR measurements for the UE. In some examples, the mode component 1335 may release a secondary cell group from the UE in the dual connected mode based on the power level indicator value. In some cases, the radio access technology mode includes an LTE mode or an NR mode. In some cases, the connected mode includes a dual connected mode.
  • FIG. 14 shows a diagram of a system 1400 including a device 1405 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the device 1405 may be an example of or include the components of device 1105, device 1205, or a base station 105 as described herein.
  • the device 1405 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a base station communications manager 1410, a network communications manager 1415, a transceiver 1420, an antenna 1425, memory 1430, a processor 1440, and an inter-station communications manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450) .
  • buses e.g., bus 1450
  • the base station communications manager 1410 may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value, transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value, and determine a configuration based on the indication of the power level indicator value.
  • the network communications manager 1415 may manage communications with the core network (e.g., via one or more wired backhaul links) .
  • the network communications manager 1415 may manage the transfer of data communications for client devices, such as one or more UEs 115.
  • the transceiver 1420 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 1420 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 1420 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the device 1405 may include a single antenna 1425. However, in some cases the device 1405 may have more than one antenna 1425, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 1430 may include RAM, ROM, or a combination thereof.
  • the memory 1430 may store computer-readable code 1435 including instructions that, when executed by a processor (e.g., the processor 1440) cause the device to perform various functions described herein.
  • a processor e.g., the processor 1440
  • the memory 1430 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • the code 1435 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 1435 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code 1435 may not be directly executable by the processor 1440 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • the processor 1440 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1440 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into processor 1440.
  • the processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1430) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting energy savings for standalone and non-standalone devices) .
  • the inter-station communications manager 1445 may manage communications with other base station 105, and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communications manager 1445 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communications manager 1445 may provide an X2 interface within an LTE/LTE-A wireless communication network technology to provide communication between base stations 105.
  • FIG. 15 shows a flowchart illustrating a method 1500 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the operations of method 1500 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1500 may be performed by a UE communications manager as described with reference to FIGs. 7 through 10.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode.
  • the operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed by a power level component as described with reference to FIGs. 7 through 10.
  • the UE may transmit, to a base station, a request message including an indication of a power level indicator value based on the determining.
  • the operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed by a message component as described with reference to FIGs. 7 through 10.
  • the UE may receive, from the base station, a response message including a configuration based on the transmitting.
  • the operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed by a message component as described with reference to FIGs. 7 through 10.
  • the UE may modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed by an operation component as described with reference to FIGs. 7 through 10.
  • FIG. 16 shows a flowchart illustrating a method 1600 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the operations of method 1600 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1600 may be performed by a UE communications manager as described with reference to FIGs. 7 through 10.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below.
  • a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may determine that a power level of the UE satisfies a threshold when in a connected mode or an idle mode.
  • the operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed by a power level component as described with reference to FIGs. 7 through 10.
  • the UE may set a bit of a power level indicator value in an IE of a request message, where the request message includes a tracking area update message or a radio resource control message.
  • the operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed by a message component as described with reference to FIGs. 7 through 10.
  • the UE may transmit, to a base station, the request message including an indication of the power level indicator value based on the setting.
  • the operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed by a message component as described with reference to FIGs. 7 through 10.
  • the UE may receive, from the base station, a response message including a configuration based on the transmitting.
  • the operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed by a message component as described with reference to FIGs. 7 through 10.
  • the UE may modify an operational parameter of the UE based on the configuration relating to the power level indicator value.
  • the operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be performed by an operation component as described with reference to FIGs. 7 through 10.
  • FIG. 17 shows a flowchart illustrating a method 1700 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the operations of method 1700 may be implemented by a base station 105 or its components as described herein.
  • the operations of method 1700 may be performed by a base station communications manager as described with reference to FIGs. 11 through 14.
  • a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below.
  • a base station may perform aspects of the functions described below using special-purpose hardware.
  • the base station may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value.
  • the operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed by a message component as described with reference to FIGs. 11 through 14.
  • the base station may determine a configuration based on the indication of the power level indicator value.
  • the operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed by a configuration component as described with reference to FIGs. 11 through 14.
  • the base station may transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • the operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed by a message component as described with reference to FIGs. 11 through 14.
  • FIG. 18 shows a flowchart illustrating a method 1800 that supports energy savings for standalone and non-standalone devices in accordance with aspects of the present disclosure.
  • the operations of method 1800 may be implemented by a base station 105 or its components as described herein.
  • the operations of method 1800 may be performed by a base station communications manager as described with reference to FIGs. 11 through 14.
  • a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below.
  • a base station may perform aspects of the functions described below using special-purpose hardware.
  • the base station may receive, from a UE in a connected mode or an idle mode, a request message including an indication of a power level indicator value.
  • the operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed by a message component as described with reference to FIGs. 11 through 14.
  • the base station may identify, in an IE of the request message, a bit value including the power level indicator value, where the request message includes a tracking area update message or a radio resource control message.
  • the operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed by a message component as described with reference to FIGs. 11 through 14.
  • the base station may determine a configuration based on the indication of the power level indicator value.
  • the operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed by a configuration component as described with reference to FIGs. 11 through 14.
  • the base station may transmit, to the UE, a response message including the configuration based on the indication of the power level indicator value.
  • the operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by a message component as described with reference to FIGs. 11 through 14.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • a CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA) , etc.
  • CDMA2000 covers IS-2000, IS-95, and IS-856 standards.
  • IS-2000 Releases may be commonly referred to as CDMA2000 1X, 1X, etc.
  • IS-856 TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD) , etc.
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • a TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • GSM Global System for Mobile Communications
  • An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB) , Evolved UTRA (E-UTRA) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, etc.
  • UMB Ultra Mobile Broadband
  • E-UTRA Evolved UTRA
  • IEEE Institute of Electrical and Electronics Engineers
  • Wi-Fi Institute of Electrical and Electronics Engineers
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM
  • UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS) .
  • LTE, LTE-A, and LTE-A Pro are releases of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from the organization named “3rd Generation Partnership Project” (3GP
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
  • 3GPP2 3rd Generation Partnership Project 2
  • the techniques described herein may be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. While aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR applications.
  • a macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider.
  • a small cell may be associated with a lower-powered base station, as compared with a macro cell, and a small cell may operate in the same or different (e.g., licensed, unlicensed, etc. ) frequency bands as macro cells.
  • Small cells may include pico cells, femto cells, and micro cells according to various examples.
  • a pico cell for example, may cover a small geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider.
  • a femto cell may also cover a small geographic area (e.g., a home) and may provide restricted access by UEs having an association with the femto cell (e.g., UEs in a closed subscriber group (CSG) , UEs for users in the home, and the like) .
  • An eNB for a macro cell may be referred to as a macro eNB.
  • An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB.
  • An eNB may support one or multiple (e.g., two, three, four, and the like) cells, and may also support communications using one or multiple component carriers.
  • the wireless communications systems described herein may support synchronous or asynchronous operation.
  • the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time.
  • the base stations may have different frame timing, and transmissions from different base stations may not be aligned in time.
  • the techniques described herein may be used for either synchronous or asynchronous operations.
  • Information and signals described herein may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) .
  • the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.
  • non-transitory computer-readable media may include random-access memory (RAM) , read-only memory (ROM) , electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable ROM
  • flash memory compact disk (CD) ROM or other optical disk storage
  • magnetic disk storage or other magnetic storage devices
  • any connection is properly termed a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave
  • the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • Disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne des procédés, des dispositifs et des systèmes pour des communications sans fil, et, plus particulièrement, des économies d'énergie pour des dispositifs autonomes et non autonomes. Un équipement utilisateur (UE) peut déterminer qu'un niveau de puissance de l'UE satisfait un seuil et transmettre, à une station de base, un message de requête comprenant une indication d'une valeur d'indicateur de niveau de puissance. Dans certains exemples, le message de requête peut être un message de mise à jour de zone de suivi ou un message de rattachement. La station de base peut déterminer (ou modifier) une configuration pour l'UE, par exemple, telle qu'une partie de bande passante (BWP) plus étroite, une technique de modulation et de codage (MCS) supérieure, une durée pour un cycle de réception discontinue connectée (CDRX), ou la désactivation de mesures de cellule de nouvelle radio (NR), entre autres. Par conséquent, l'UE peut recevoir la configuration et modifier un paramètre de fonctionnement en conséquence.
PCT/CN2019/087188 2019-05-16 2019-05-16 Économies d'énergie pour dispositifs autonomes et non autonomes WO2020228011A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/087188 WO2020228011A1 (fr) 2019-05-16 2019-05-16 Économies d'énergie pour dispositifs autonomes et non autonomes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/087188 WO2020228011A1 (fr) 2019-05-16 2019-05-16 Économies d'énergie pour dispositifs autonomes et non autonomes

Publications (1)

Publication Number Publication Date
WO2020228011A1 true WO2020228011A1 (fr) 2020-11-19

Family

ID=73290018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/087188 WO2020228011A1 (fr) 2019-05-16 2019-05-16 Économies d'énergie pour dispositifs autonomes et non autonomes

Country Status (1)

Country Link
WO (1) WO2020228011A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022119720A1 (fr) * 2020-12-02 2022-06-09 Qualcomm Incorporated Techniques d'économie d'énergie d'équipement utilisateur
US11877169B2 (en) 2020-12-02 2024-01-16 Qualcomm Incorporated Techniques for user equipment power saving

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070218926A1 (en) * 2006-02-16 2007-09-20 Huawei Technologies Co., Ltd. System and method for handling mobile station location update
US20080268917A1 (en) * 2007-04-25 2008-10-30 Henry Chang Power management in a portable communication device based on radio configuration version
US20140349663A1 (en) * 2012-01-17 2014-11-27 Huawei Device Co., Ltd. Wireless transmission method, access point, and station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070218926A1 (en) * 2006-02-16 2007-09-20 Huawei Technologies Co., Ltd. System and method for handling mobile station location update
US20080268917A1 (en) * 2007-04-25 2008-10-30 Henry Chang Power management in a portable communication device based on radio configuration version
US20140349663A1 (en) * 2012-01-17 2014-11-27 Huawei Device Co., Ltd. Wireless transmission method, access point, and station

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEC: "eNA KI-13 Solution 16 – Updates to resolve Editor’s Note", SA WG2 MEETING #129 S2-1811537, 25 October 2018 (2018-10-25), XP051567971, DOI: 20200212093302X *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022119720A1 (fr) * 2020-12-02 2022-06-09 Qualcomm Incorporated Techniques d'économie d'énergie d'équipement utilisateur
US11877169B2 (en) 2020-12-02 2024-01-16 Qualcomm Incorporated Techniques for user equipment power saving

Similar Documents

Publication Publication Date Title
AU2018316274B2 (en) Uplink-based positioning reference signaling in multi-beam systems
US11160030B2 (en) Power control in directional beam environments
AU2019206377A1 (en) Signaling techniques for bandwidth parts
EP3673700B1 (fr) Mécanismes d'accès à un canal pour fonctionnement multibande
AU2018402028B2 (en) Beam recovery in a multiple bandwidth part environment
WO2019158080A1 (fr) Techniques pour activer ou désactiver une configuration semi-persistante pour des ensembles de ressources d'indicateur d'état de canal
WO2019192523A1 (fr) Reconfiguration de ressource de signal de référence de surveillance de liaison radio
WO2020132198A1 (fr) Détermination d'indication de configuration de transmission pour un canal de données partagé
EP3874801B1 (fr) Rapport de qualité de canal à l'aide de messages d'accès aléatoire
WO2019236864A1 (fr) Activation et désactivation rapides pour des communications à faible latence
EP4091368B1 (fr) Transmission de signal de commande à large bande
WO2020112346A1 (fr) Informations de commande flexibles pour communications sans fil
WO2021040908A1 (fr) Hypothèse de quasi-localisation par défaut pour déclenchement de signal de référence de porteuse croisée
US11523343B2 (en) Monitoring wake-up signal using common identifier
WO2020088382A1 (fr) Transmission de données avec temps d'expiration
WO2020146241A1 (fr) Activation d'espace de recherche pour surveillance de canal
WO2021035513A1 (fr) Nœud de relais non transparent intrabande dans un réseau à fréquence unique
WO2020228011A1 (fr) Économies d'énergie pour dispositifs autonomes et non autonomes
US11564245B2 (en) Uplink-based radio link failure reporting for a cell group

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19928922

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19928922

Country of ref document: EP

Kind code of ref document: A1