WO2022056705A1

WO2022056705A1 - User equipment requested single beam wake up signal

Info

Publication number: WO2022056705A1
Application number: PCT/CN2020/115503
Authority: WO
Inventors: Nan Zhang
Original assignee: Qualcomm Incorporated
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2022-03-24

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a request for a single beam wake up signal. The UE may receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal. Numerous other aspects are provided.

Description

USER EQUIPMENT REQUESTED SINGLE BEAM WAKE UP SIGNAL

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for a user equipment requested single beam wake up signal.

BACKGROUND

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and/or the like) . Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) . LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .

A wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) . A user equipment (UE) may communicate with a base station (BS) via the downlink and uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate on a municipal, national, regional, and even global level. New Radio (NR) , which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) . NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful.

SUMMARY

In some aspects, a method of wireless communication performed by a UE includes transmitting a request for a single beam wake up signal; and receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, a method of wireless communication performed by a base station includes receiving, from a UE, a request for a single beam wake up signal; and transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, a UE for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: transmit a request for a single beam wake up signal; and receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, a base station for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive, from a UE, a request for a single beam wake up signal; and transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: transmit a request for a single beam wake up signal; and receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to: receive, from a UE, a request for a single beam wake up signal; and transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, an apparatus for wireless communication includes means for transmitting a request for a single beam wake up signal; and means for receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.

In some aspects, an apparatus for wireless communication includes means for receiving, from a UE, a request for a single beam wake up signal; and means for transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.

Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.

The foregoing has outlined rather broadly the features and technical advantages of examples according to the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.

Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.

Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.

Fig. 3 is a diagram illustrating an example of a discontinuous reception (DRX) configuration, in accordance with various aspects of the present disclosure.

Fig. 4 is a diagram illustrating an example associated with a UE requested single beam wake up signal, in accordance with various aspects of the present disclosure.

Figs. 5-6 are diagrams illustrating example processes associated with a UE requested single beam wake up signal, in accordance with various aspects of the present disclosure.

Figs. 7-8 are block diagrams of example apparatuses for wireless communication, in accordance with various aspects of the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, one skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, and/or the like (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or combinations thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

It should be noted that while aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .

Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, and/or the like. The wireless network 100 may include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) . A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In the example shown in Fig. 1, a BS 110a may be a macro BS for a macro cell 102a, a BS 110b may be a pico BS for a pico cell 102b, and a BS 110c may be a femto BS for a femto cell 102c. A BS may support one or multiple (e.g., three) cells. The terms “eNB” , “base station” , “NR BS” , “gNB” , “TRP” , “AP” , “node B” , “5G NB” , and “cell” may be used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS. In some aspects, the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.

Wireless network 100 may also include relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) . A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in Fig. 1, a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100. For example, macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .

A network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.

UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, and/or the like. A UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity. A wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices. Some UEs may be considered a Customer Premises Equipment (CPE) . UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like. In some aspects, the processor components and the memory components may be coupled together. For example, the processor components (e.g., one or more processors) and the memory components (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and/or the like.

In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, an air interface, and/or the like. A frequency may also be referred to as a carrier, a frequency channel, and/or the like. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) . For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like. In this case, the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.

Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, and/or the like. For example, devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band. Thus, unless specifically stated otherwise, it should be understood that the term “sub-6 GHz” or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) . Similarly, unless specifically stated otherwise, it should be understood that the term “millimeter wave” or the like, if used herein, may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.

As indicated above, Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.

Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T ≥ 1 and R ≥ 1.

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

At UE 120, antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM and/or the like) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280. The term “controller/processor” may refer to one or more controllers, one or more processors, or a combination thereof. A channel processor may determine reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , channel quality indicator (CQI) , and/or the like. In some aspects, one or more components of UE 120 may be included in a housing 284.

Network controller 130 may include communication unit 294, controller/processor 290, and memory 292. Network controller 130 may include, for example, one or more devices in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

On the uplink, at UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 4-6.

At base station 110, the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240. Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 4-6.

Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with UE requested single beam wake up signal, as described in more detail elsewhere herein. For example, controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 500 of Fig. 5, process 600 of Fig. 6, and/or other processes as described herein.

Memories

242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code, program code, and/or the like) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, interpreting, and/or the like) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 500 of Fig. 5, process 600 of Fig. 6, and/or other processes as described herein. In some aspects, executing instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, and/or the like.

In some aspects, the UE includes means for transmitting a request for a single beam wake up signal; and/or means for receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal. The means for the UE to perform operations described herein may include, for example, antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, and/or memory 282.

In some aspects, the UE includes means for monitoring a paging occasion subsequent to the wake up signal occasion for a paging message, based at least in part on receiving the wake up signal transmitted on the single beam.

In some aspects, the UE includes means for detecting movement of the UE; and/or means for transmitting an update request to stop the single beam wake up signal based at least in part on detecting the movement of the UE.

In some aspects, the UE includes means for detecting movement of the UE during at least one of a radio resource control idle mode or a radio resource control inactive mode.

In some aspects, the UE includes means for receiving, prior to receiving the wake up signal transmitted on the single beam, an indication that the request for the single beam wake up signal has been granted.

In some aspects, the base station includes means for receiving, from a UE, a request for a single beam wake up signal; and/or means for transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal. The means for the base station to perform operations described herein may include, for example, transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, and/or scheduler 246.

In some aspects, the base station includes means for transmitting, to the UE, a paging message during a paging occasion subsequent to the wake up signal occasion.

In some aspects, the base station includes means for receiving, from the UE, an update request to stop the single beam wake up signal.

In some aspects, the base station includes means for transmitting a wake up signal for the UE using the beam sweeping based at least in part on the update request to stop the single beam wake up signal.

In some aspects, the base station includes means for transmitting, prior to transmitting the wake up signal on the single beam, an indication that the request for the single beam wake up signal has been granted.

While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.

As indicated above, Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.

Fig. 3 is a diagram illustrating an example 300 of a discontinuous reception (DRX) configuration, in accordance with various aspects of the present disclosure.

As shown in Fig. 3, a base station 110 may transmit a DRX configuration to a UE 120 to configure a DRX cycle 305 for the UE 120. A DRX cycle 305 may include a DRX On duration 310 (e.g., during which a UE 120 is awake or in an active state) and an opportunity to enter a DRX sleep state 315. As used herein, the time during which the UE 120 is configured to be in an active state during the DRX On duration 310 may be referred to as an active time, and the time during which the UE 120 is configured to be in the DRX sleep state 315 may be referred to as an inactive time. As described below, the UE 120 may monitor a physical downlink control channel (PDCCH) during the active time, and may refrain from monitoring the PDCCH during the inactive time.

During the DRX On duration 310 (e.g., the active time) , the UE 120 may monitor a downlink control channel (e.g., a PDCCH) , as shown by reference number 320. For example, the UE 120 may monitor the PDCCH for downlink control information (DCI) pertaining to the UE 120. If the UE 120 does not detect and/or successfully decode any PDCCH communications intended for the UE 120 during the DRX On duration 310, then the UE 120 may enter the sleep state 315 (e.g., for the inactive time) at the end of the DRX On duration 310, as shown by reference number 325. In this way, the UE 120 may conserve battery power and reduce power consumption. As shown, the DRX cycle 305 may repeat with a configured periodicity according to the DRX configuration.

If the UE 120 detects and/or successfully decodes a PDCCH communication intended for the UE 120, then the UE 120 may remain in an active state (e.g., awake) for the duration of a DRX inactivity timer 330 (e.g., which may extend the active time) . The UE 120 may start the DRX inactivity timer 330 at a time at which the PDCCH communication is received (e.g., in a transmission time interval (TTI) in which the PDCCH communication is received, such as a slot, a subframe, and/or the like) . The UE 120 may remain in the active state until the DRX inactivity timer 330 expires, at which time the UE 120 may enter the sleep state 315 (e.g., for the inactive time) , as shown by reference number 335. During the duration of the DRX inactivity timer 330, the UE 120 may continue to monitor for PDCCH communications, may obtain a downlink data communication (e.g., on a downlink data channel, such as a physical downlink shared channel (PDSCH) ) scheduled by the PDCCH communication, may prepare and/or transmit an uplink communication (e.g., on a physical uplink shared channel (PUSCH) ) scheduled by the PDCCH communication, and/or the like. The UE 120 may restart the DRX inactivity timer 330 after each detection of a PDCCH communication for the UE 120 for an initial transmission (e.g., but not for a retransmission) . By operating in this manner, the UE 120 may conserve battery power and reduce power consumption by entering the sleep state 315.

As indicated above, Fig. 3 is provided as an example. Other examples may differ from what is described with respect to Fig. 3.

When a UE is in a radio resource control (RRC) idle or inactive mode, a base station may page the UE with paging messages to inform the UE that there is an incoming connection request or system information update. The UE may be configured to use a DRX cycle in the RRC idle or inactive mode to monitor the PDCCH for the paging messages. In this case, the DRX On durations (e.g., active time) may correspond to paging occasions in which the base station transmits the paging messages. During a DRX On duration (e.g., active time) , the UE may wake up from the sleep state and monitor the PDCCH for a paging message targeting the UE. For example, the UE may decode DCI in a PDCCH communication to determine if the paging message targets the UE.

A wake up signal (WUS) may be used together with the DRX cycle to further reduce power consumption by the UE in the RRC idle or inactive mode. A respective WUS signal occasion may precede each paging occasion. The base station may transmit the WUS in the WUS occasion if a paging message for the UE is to be transmitted in the subsequent paging occasion. In this case, the DRX On durations (e.g., active time) may correspond to the WUS occasions. During a DRX On duration (e.g., active time) , the UE may wake from the sleep state and determine whether the WUS is detected. If the WUS is no detected, the UE may return to the sleep state. If the WUS is detected, the UE may monitor the PDCCH for a paging message in the subsequent paging occasion. Thus, the UE only needs to monitor and decode a PDCCH communication in the paging occasion if the WUS is detected in the WUS occasion. This results in reduced power consumption as compared with monitoring paging occasions without the WUS.

In 5G/NR, the WUS may be transmitted by the base station using beam sweeping. That is, the base station may transmit the WUS on a plurality of beams in different directions. For example, the base station may transmit the WUS in all beam directions. The UE may arbitrarily select a transmit/receive beam, from the plurality of beams, to receive the WUS. Although transmitting the WUS using beam sweeping may increase UE mobility and reliability, beam sweeping may increase network bandwidth and radio resources used for transmitting the WUS. Furthermore, in some cases, there may be a large number of UEs in a coverage area of a base station. For example, for massive machine-type communications (mMTC) , hundreds or thousands (or more) of high space density UEs may be in service. In this case, the WUS transmitted using beam sweeping may be detected by a large number of UEs that are not being paged in the subsequent paging occasion, which may cause those UEs to unnecessarily consume power and network resources to monitor and decode PDCCH communications in the subsequent paging occasion.

Some techniques and apparatuses described herein enable a UE to request a single beam WUS. For example, a UE that does not move, is not currently moving, and/or is not expected to move during an RRC idle mode or an RRC inactive mode may transmit a request to a base station or core network for a single beam WUS. A base station may transmit a WUS to the UE on a single beam based at least in part on the request for the single beam WUS. As a result, network bandwidth and radio resources may be reduced as compared to using beam sweeping to transmit the WUS. Furthermore, UE power consumption may be reduced as fewer UEs that are not being paged will detect the single beam WUS.

Fig. 4 is a diagram illustrating an example 400 associated with a UE requested single beam WUS, in accordance with various aspects of the present disclosure. As shown in Fig. 4, example 400 includes communication between a base station 110 and a UE 120. In some aspects, base station 110 and UE 120 may be included in a wireless network, such as wireless network 100. Base station 110 and UE 120 may communicate on a wireless access link, which may include an uplink and a downlink.

As shown in Fig. 4, and by reference number 405, the UE 120 may forecast (e.g., using controller/processor 280 and/or the like) whether the UE 120 will move. In some aspects, while the UE 120 is in an RRC connected mode, the UE 120 may forecast whether the UE 120 will move in an RRC idle mode or an RRC inactive mode. In some aspects, the UE 120 may determine whether the UE 120 is expected to move (e.g., in the RRC idle mode or the RRC inactive mode) based at least in part on a type of UE (e.g., smart phone, sensor device, etc. ) and/or a history of movement of the UE 120.

In some aspects, the UE 120 may forecast whether the UE 120 will move in the RRC idle mode or the RRC inactive mode based at least in part on a determination of whether the UE 120 is currently moving. For example, if the UE 120 detects that the UE 120 is currently moving, the UE 120 may determine that the UE 120 is expected to continue moving in the RRC idle mode or the RRC inactive mode. If the UE 120 detects that the UE 120 is currently not moving, the UE 120 may determine that the UE 120 is not expected to move in the RRC idle mode or RRC inactive mode. In this case, the UE 120 may detect whether the UE 120 is moving using a motion sensor (e.g., accelerometer, gyroscope, and/or the like) included in the UE 120.

In some aspects, the UE 120 may not forecast whether the UE 120 will move. For example, if the UE 120 is a type of UE (e.g., sensor, stationary camera, and/or the like) that is associated with a static location, the UE 120 may not forecast whether the UE 120 will move. In this case, the UE 120 may request a single beam WUS without forecasting whether the UE 120 will move.

As further shown in Fig. 4, and by reference number 410, the UE 120 may transmit (e.g., using controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, transmission component 704, and/or the like) a request for a single beam WUS. As shown in Fig. 4, in some aspects, the UE 120 may transmit the request for the single beam WUS to the base station 110. For example, the request for the single beam WUS may be included in an RRC communication, a medium access control (MAC) control element (MAC-CE) , or the like. In some aspects, the base station 110 may transmit the request for the single beam WUS to a core network, such as a 5G core network. In some aspects, the UE 120 may transmit the request for the single beam WUS to the core network. For example, the request for the single beam WUS may be included in a non-access stratum (NAS) message.

The UE 120 may transmit the request for the single beam WUS while the UE 120 is in the RRC connected mode prior to entering the RRC idle mode or the RRC inactive mode. For example, the UE 120 may transmit the request for the single beam WUS while the UE 120 is in the RRC connected mode, prior to receiving an RRC release message or an RRC suspend message.

In some aspects, the UE 120 may transmit the request for the single beam WUS based at least in part on a determination that the UE 120 is not expected to move. For example, the UE 120 may transmit the request for the single beam WUS based at least in part on a forecast by the UE 120 that the UE 120 will not move in the RRC idle mode or the RRC inactive mode. In some aspects, the UE 120 may transmit the request for the single beam WUS based at least in part on a determination that the UE 120 is not moving. For example, the UE 120 may detect that the UE 120 is not moving using a motion sensor (e.g., accelerometer, gyroscope, and/or the like) in the UE 120.

In some aspects, the UE 120 may transmit the request for the single beam WUS based at least in part on a UE type of the UE 120. For example, in a case in which the UE 120 is a type of UE (e.g., sensor, stationary camera, and/or the like) that is associated with a static location, the UE 120 may transmit the request for the single beam WUS without forecasting whether the UE 120 will move or detecting whether the UE 120 is moving.

As further shown in Fig. 4, and by reference number 415, the UE 120 may receive (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller/processor 280, reception component 702, and/or the like) an indication that the request for the single beam WUS has been granted. As shown in Fig. 4, in some aspects, the indication may be transmitted by the base station 110. For example, the indication may be included in an RRC communication, MAC-CE, DCI, or the like. In some aspects, the indication may be transmitted by the core network (e.g., 5G core network) . For example, the indication may be transmitted in an NAS message.

The base station 110 and/or the core network (e.g., 5G core network) may determine whether to grant the request for the single beam WUS. In some aspects, the determination of whether to grant the request for the single beam WUS may be based at least in part on a UE identifier associated with the UE 120. For example, the determination may be based at least in part on a UE type associated with the UE identifier associated for the UE 120. In some aspects, the base station 110 may receive the request, determine whether the request is granted, and transmit the indication to the UE 120.

In some aspects, the base station 110 may receive the request and transmit the request to the core network (e.g., 5G core network) . In this case, the determination of whether the request is granted may be performed by the core network or may be performed jointly by the base station 110 and the core network. The base station 110 may then transmit the indication to the UE 120. In some aspects, the core network (e.g., 5G core network) may receive the request, determine whether the request is granted, and transmit the indication to the UE 120.

In some aspects, the UE 120 may not receive an indication that the request has been granted. For example, the base station 110 and/or the core network may determine that the request has been granted, but not transmit an indication to the UE 120 indicating that the request has been granted.

As further shown in Fig. 4, and by reference number 420, while the UE 120 is in the RRC idle mode or the RRC inactive mode, the base station 110 may transmit (e.g., using controller/processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, transmission component 804, and/or the like) a WUS on a single beam based at least in part on the request for the single beam WUS. The base station 110 may transmit the WUS on a same beam that was used to communicate with the UE 120 during the RRC connected mode. The UE 120 may receive the WUS on the same beam used to communicate with the base station 110 during the RRC connected mode. In some aspects, a different beam may be used for transmitting and receiving the WUS.

In some aspects, the WUS may be transmitted in a WUS occasion that precedes a paging occasion in a paging cycle (e.g., DRX cycle) configured for the UE 120 in the RRC idle mode or the RRC inactive mode. The UE 120 may wake from a sleep state during the WUS occasion to detect whether the WUS is received on the single beam.

As further shown in Fig. 4, and by reference number 425, the base station 110 may transmit (e.g., using controller/processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, transmission component 804, and/or the like) a paging message to the UE 120. The UE 120 may monitor a paging occasion for the paging message based at least in part on receiving the WUS on the single beam in the WUS occasion preceding the paging occasion. For example, the UE 120 may monitor for PDCCH communications during the paging occasion based at least in part on detecting the WUS on the single beam in the WUS occasion preceding the paging occasion.

The UE 120 may receive and decode the paging message in the paging occasion. For example, the UE 120 may receive a PDCCH communication and decode DCI included in the PDCCH communication to determine whether the UE 120 is being paged. If the DCI indicates that the UE 120 is being paged, the UE 120 may decode a PDSCH paging message received in the paging occasion. For example, the PDSCH paging message may include a connection request and/or system information update for the UE 120.

As further shown in Fig. 4, and by reference number 430, the UE 120 may detect (e.g., using controller/processor 280, a motion detector, detection component 710, and/or the like) movement of the UE 120 during the RRC idle mode or the RRC inactive mode. For example, the UE 120 may detect movement using a motion sensor (e.g., accelerometer, gyroscope, and/or the like) during the RRC idle mode or the RRC inactive mode.

As further shown in Fig. 4, and by reference number 435, the UE 120 may transmit (e.g., using controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, transmission component 704, and/or the like) an update request to stop the single beam WUS based at least in part detecting the movement of the UE 120. As shown in Fig. 4, in some aspects, the UE 120 may transmit the update request to stop the single beam WUS to the base station 110. For example, the update request may be included in an RRC communication, a MAC-CE, or the like. In some aspects, the base station 110 may transmit the update request to the core network (e.g., 5G core network) . In some aspects, the UE 120 may transmit the update request to stop the single beam WUS to the core network (e.g., 5G core network) . For example, the update request may be included in an NAS message.

Based at least in part on the update request, the base station 110 may transmit a subsequent WUS for the UE 120 using beam sweeping. This increases reliability for the UE 120 when movement is detected, since the UE 120 may not receive the single beam WUS if the UE 120 has moved to a different position. Thus, the UE 120 may reduce power consumption and reduce occurrences of other UEs detecting the WUS by receiving the WUS on a single beam when the UE 120 does not move, without decreasing reliability when the UE 120 does move.

As described above in connection with Fig. 4, the UE 120 may transmit a request to the base station 110 or core network for a single beam WUS. The base station 110 may transmit a WUS to the UE 120 on a single beam based at least in part on the request for the single beam WUS. As a result, network bandwidth and radio resources may be reduced as compared to using beam sweeping to transmit the WUS. Furthermore, UE power consumption may be reduced as fewer UEs that are not being paged will detect the single beam WUS.

As indicated above, Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.

Fig. 5 is a diagram illustrating an example process 500 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 500 is an example where the UE (e.g., UE 120) performs operations associated with a UE requested single beam wake up signal.

As shown in Fig. 5, in some aspects, process 500 may include transmitting a request for a single beam wake up signal (block 510) . For example, the UE (e.g., using transmission component 704, depicted in Fig. 7) may transmit a request for a single beam wake up signal, as described above, for example with reference to Fig. 4 (e.g., reference number 410) .

As further shown in Fig. 5, in some aspects, process 500 may include receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal (block 520) . For example, the UE (e.g., using reception component 702, depicted in Fig. 7) may receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal, as described above, for example with reference to Fig. 4 (e.g., reference number 420) .

Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the request for the single beam wake up signal is transmitted during a radio resource control connected mode. In a second aspect, alone or in combination with the first aspect, the request for the single beam wake up signal is transmitted prior to the UE entering at least one of a radio resource control idle mode or a radio resource control inactive mode.

In a third aspect, alone or in combination with one or more of the first and second aspects, the request for the single beam wake up signal is transmitted to the base station. In a fourth aspect, alone or in combination with one or more of the first through third aspects, the request for the single beam wake up signal is included in at least one of an RRC communication or a MAC-CE.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the request for the single beam wake up signal is transmitted to a core network. In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the request for the single beam wake up signal is included in a non-access stratum message.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the wake up signal transmitted on the single beam is received during a wake up signal occasion in at least one of a radio resource control idle mode or a radio resource control inactive mode. In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the wake up signal is received on a same beam that is used by the UE during a radio resource control connected mode. In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, process 500 includes monitoring a paging occasion subsequent to the wake up signal occasion for a paging message, based at least in part on receiving the wake up signal transmitted on the single beam.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, transmitting the request for the single beam wake up signal is based at least in part on a determination that the UE is not moving. In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, transmitting the request for the single beam wake up signal is based at least in part on a determination that the UE is not expected to move. In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, transmitting the request for the single beam wake up signal is based at least in part on a type of the UE.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process 500 includes detecting movement of the UE, and transmitting an update request to stop the single beam wake up signal based at least in part on detecting the movement of the UE. In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, detecting movement of the UE comprises detecting movement of the UE during at least one of a radio resource control idle mode or a radio resource control inactive mode.

In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, the update request is transmitted to at least one of the base station or a core network. In a sixteenth aspect, alone or in combination with one or more of the first through fifteenth aspects, the update request is included in at least one of an RRC communication, a MAC-CE, or an NAS message.

In a seventeenth aspect, alone or in combination with one or more of the first through sixteenth aspects, process 500 includes receiving, prior to receiving the wake up signal transmitted on the single beam, an indication that the request for the single beam wake up signal has been granted.

Although Fig. 5 shows example blocks of process 500, in some aspects, process 500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 5. Additionally, or alternatively, two or more of the blocks of process 500 may be performed in parallel.

Fig. 6 is a diagram illustrating an example process 600 performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 600 is an example where the base station (e.g., base station 110) performs operations associated with a UE requested single beam wake up signal.

As shown in Fig. 6, in some aspects, process 600 may include receiving, from a UE, a request for a single beam wake up signal (block 610) . For example, the base station (e.g., using reception component 802, depicted in Fig. 8) may receive, from a UE, a request for a single beam wake up signal, as described above, for example with reference to Fig. 4 (e.g., reference number 410) .

As further shown in Fig. 6, in some aspects, process 600 may include transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal (block 620) . For example, the base station (e.g., using transmission component 804, depicted in Fig. 8) may transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal, as described above, for example with reference to Fig. 4 (e.g., reference number 420) .

Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.

In a first aspect, the request for the single beam wake up signal is received during a radio resource control connected mode for the UE. In a second aspect, alone or in combination with the first aspect, the request for the single beam wake up signal is received prior to the UE entering at least one of a radio resource control idle mode or a radio resource control inactive mode. In a third aspect, alone or in combination with one or more of the first and second aspects, the request for the single beam wake up signal is included in at least one of an RRC communication or a MAC-CE.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the wake up signal is transmitted on the single beam during a wake up signal occasion in at least one of a radio resource control idle mode or a radio resource control inactive mode for the UE. In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the wake up signal is transmitted on a same beam that is used to communicate with the UE during a radio resource control connected mode. In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, process 600 includes transmitting, to the UE, a paging message during a paging occasion subsequent to the wake up signal occasion.

In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, process 600 includes receiving, from the UE, an update request to stop the single beam wake up signal. In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, process 600 includes transmitting a wake up signal for the UE using the beam sweeping based at least in part on the update request to stop the single beam wake up signal. In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the update request is included in at least one of an RRC communication or a MAC-CE.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, process 600 includes transmitting, prior to transmitting the wake up signal on the single beam, an indication that the request for the single beam wake up signal has been granted.

Although Fig. 6 shows example blocks of process 600, in some aspects, process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 6. Additionally, or alternatively, two or more of the blocks of process 600 may be performed in parallel.

Fig. 7 is a block diagram of an example apparatus 700 for wireless communication. The apparatus 700 may be a UE, or a UE may include the apparatus 700. In some aspects, the apparatus 700 includes a reception component 702 and a transmission component 704, which may be in communication with one another (for example, via one or more buses and/or one or more other components) . As shown, the apparatus 700 may communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device) using the reception component 702 and the transmission component 704. As further shown, the apparatus 700 may include one or more of a monitoring component 708 or a detection component 710, among other examples.

In some aspects, the apparatus 700 may be configured to perform one or more operations described herein in connection with Fig. 4. Additionally or alternatively, the apparatus 700 may be configured to perform one or more processes described herein, such as process 500 of Fig. 5. In some aspects, the apparatus 700 and/or one or more components shown in Fig. 7 may include one or more components of the UE described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 7 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

The reception component 702 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 706. The reception component 702 may provide received communications to one or more other components of the apparatus 700. In some aspects, the reception component 702 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 706. In some aspects, the reception component 702 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

The transmission component 704 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 706. In some aspects, one or more other components of the apparatus 706 may generate communications and may provide the generated communications to the transmission component 704 for transmission to the apparatus 706. In some aspects, the transmission component 704 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 706. In some aspects, the transmission component 704 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 704 may be collocated with the reception component 702 in a transceiver.

The transmission component 704 may transmit a request for a single beam wake up signal. The reception component 702 may receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.

The monitoring component 708 may monitor a paging occasion subsequent to the wake up signal occasion for a paging message, based at least in part on receiving the wake up signal transmitted on the single beam. In some aspects, the monitoring component 708 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

The detection component 710 may detect movement of the UE. In some aspects, the detection component 710 may include a motion sensor (e.g., accelerometer, gyroscope, and/or the like) , a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.

The transmission component 704 may transmit an update request to stop the single beam wake up signal based at least in part on detecting the movement of the UE.

The reception component 702 may receive, prior to receiving the wake up signal transmitted on the single beam, an indication that the request for the single beam wake up signal has been granted.

The number and arrangement of components shown in Fig. 7 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 7. Furthermore, two or more components shown in Fig. 7 may be implemented within a single component, or a single component shown in Fig. 7 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 7 may perform one or more functions described as being performed by another set of components shown in Fig. 7.

Fig. 8 is a block diagram of an example apparatus 800 for wireless communication. The apparatus 800 may be a base station, or a base station may include the apparatus 800. In some aspects, the apparatus 800 includes a reception component 802 and a transmission component 804, which may be in communication with one another (for example, via one or more buses and/or one or more other components) . As shown, the apparatus 800 may communicate with another apparatus 806 (such as a UE, a base station, or another wireless communication device) using the reception component 802 and the transmission component 804. As further shown, the apparatus 800 may include a determination component 808, among other examples.

In some aspects, the apparatus 800 may be configured to perform one or more operations described herein in connection with Fig. 4. Additionally or alternatively, the apparatus 800 may be configured to perform one or more processes described herein, such as process 600 of Fig. 6. In some aspects, the apparatus 800 and/or one or more components shown in Fig. 8 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 8 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.

The reception component 802 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 806. The reception component 802 may provide received communications to one or more other components of the apparatus 800. In some aspects, the reception component 802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 806. In some aspects, the reception component 802 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.

The transmission component 804 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 806. In some aspects, one or more other components of the apparatus 806 may generate communications and may provide the generated communications to the transmission component 804 for transmission to the apparatus 806. In some aspects, the transmission component 804 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 806. In some aspects, the transmission component 804 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 804 may be collocated with the reception component 802 in a transceiver.

The reception component 802 may receive, from a UE, a request for a single beam wake up signal. The transmission component 804 may transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.

The transmission component 804 may transmit, to the UE, a paging message during a paging occasion subsequent to the wake up signal occasion.

The reception component 802 may receive, from the UE, an update request to stop the single beam wake up signal.

The transmission component 804 may transmit a wake up signal for the UE using the beam sweeping based at least in part on the update request to stop the single beam wake up signal.

The determination component 808 may determine whether the request for the single beam wake up signal is granted. In some aspects, the determination component 808 may include a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. The transmission component 804 may transmit, prior to transmitting the wake up signal on the single beam, an indication that the request for the single beam wake up signal has been granted.

The number and arrangement of components shown in Fig. 8 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 8. Furthermore, two or more components shown in Fig. 8 may be implemented within a single component, or a single component shown in Fig. 8 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 8 may perform one or more functions described as being performed by another set of components shown in Fig. 8.

The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and/or the like.

Even though particular combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. A phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .

No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, a combination of related and unrelated items, and/or the like) , and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

Claims

A method of wireless communication performed by a user equipment (UE) , comprising:

transmitting a request for a single beam wake up signal; and

receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.
The method of claim 1, wherein the request for the single beam wake up signal is transmitted during a radio resource control connected mode.
The method of claim 2, wherein the request for the single beam wake up signal is transmitted prior to the UE entering at least one of a radio resource control idle mode or a radio resource control inactive mode.
The method of any of claims 1-3, wherein the request for the single beam wake up signal is transmitted to the base station.
The method of claim 4, wherein the request for the single beam wake up signal is included in at least one of a radio resource control communication or a medium access control (MAC) control element.
The method of any of claims 1-5, wherein the request for the single beam wake up signal is transmitted to a core network.
The method of claim 6, wherein the request for the single beam wake up signal is included in a non-access stratum message.
The method of any of claims 1-7, wherein the wake up signal transmitted on the single beam is received during a wake up signal occasion in at least one of a radio resource control idle mode or a radio resource control inactive mode.
The method of claim 8, wherein the wake up signal is received on a same beam that is used by the UE during a radio resource control connected mode.
The method of any of claims 8-9, further comprising:

monitoring a paging occasion subsequent to the wake up signal occasion for a paging message, based at least in part on receiving the wake up signal transmitted on the single beam.
The method of any of claims 1-10, wherein transmitting the request for the single beam wake up signal is based at least in part on a determination that the UE is not moving.
The method of any of claims 1-11, wherein transmitting the request for the single beam wake up signal is based at least in part on a determination that the UE is not expected to move.
The method of any of claims 1-12, wherein transmitting the request for the single beam wake up signal is based at least in part on a type of the UE.
The method of any of claims 1-13, further comprising:

detecting movement of the UE; and

transmitting an update request to stop the single beam wake up signal based at least in part on detecting the movement of the UE.
The method of claim 14, wherein detecting movement of the UE comprises:

detecting movement of the UE during at least one of a radio resource control idle mode or a radio resource control inactive mode.
The method of any of claims 14-15, wherein the update request is transmitted to at least one of the base station or a core network.
The method of claim 16, wherein the update request is included in at least one of a radio resource control communication, a medium access control (MAC) control element, or a non-access stratum message.
The method of any of claims 1-17, further comprising:

receiving, prior to receiving the wake up signal transmitted on the single beam, an indication that the request for the single beam wake up signal has been granted.
A method of wireless communication performed by a base station, comprising:

receiving, from a user equipment (UE) , a request for a single beam wake up signal; and

transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.
The method of claim 19, wherein the request for the single beam wake up signal is received during a radio resource control connected mode for the UE.
The method of claim 20, wherein the request for the single beam wake up signal is received prior to the UE entering at least one of a radio resource control idle mode or a radio resource control inactive mode.
The method of any of claims 19-21, wherein the request for the single beam wake up signal is included in at least one of a radio resource control communication or a medium access control (MAC) control element.
The method of any of claims 19-22, wherein the wake up signal is transmitted on the single beam during a wake up signal occasion in at least one of a radio resource control idle mode or a radio resource control inactive mode for the UE.
The method of claim 23, wherein the wake up signal is transmitted on a same beam that is used to communicate with the UE during a radio resource control connected mode.
The method of any of claims 23-24, further comprising:

transmitting, to the UE, a paging message during a paging occasion subsequent to the wake up signal occasion.
The method of any of claims 19-25, further comprising:

receiving, from the UE, an update request to stop the single beam wake up signal.
The method of claim 26, further comprising:

transmitting a wake up signal for the UE using the beam sweeping based at least in part on the update request to stop the single beam wake up signal.
The method of any of claims 26-27, wherein the update request is included in at least one of a radio resource control communication or a medium access control (MAC) control element.
The method of any of claims 19-28, further comprising:

transmitting, prior to transmitting the wake up signal on the single beam, an indication that the request for the single beam wake up signal has been granted.
A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

transmit a request for a single beam wake up signal; and

receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.
A base station for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

receive, from a user equipment (UE) , a request for a single beam wake up signal; and

transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a user equipment (UE) , cause the UE to:

transmit a request for a single beam wake up signal; and

receive, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

one or more instructions that, when executed by one or more processors of a base station, cause the base station to:

receive, from a user equipment (UE) , a request for a single beam wake up signal; and

transmit, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.
An apparatus for wireless communication, comprising:

means for transmitting a request for a single beam wake up signal; and

means for receiving, from a base station, a wake up signal transmitted on a single beam based at least in part on the request for the single beam wake up signal.
An apparatus for wireless communication, comprising:

means for receiving, from a user equipment (UE) , a request for a single beam wake up signal; and

means for transmitting, to the UE, a wake up signal on a single beam based at least in part on the request for the single beam wake up signal.
A method, device, apparatus, computer program product, non-transitory computer-readable medium, user equipment, base station, node, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the accompanying drawings and specification.