WO2022021186A1

WO2022021186A1 - Monitoring paging on multiple beams

Info

Publication number: WO2022021186A1
Application number: PCT/CN2020/105715
Authority: WO
Inventors: Jinglin Zhang; Haojun WANG; Zhanzhong YUAN; Yi Liu; Zhenqing CUI
Original assignee: Qualcomm Incorporated
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-02-03

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a SINR threshold. The UE may stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded. Numerous other aspects are provided.

Description

MONITORING PAGING ON MULTIPLE BEAMS

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for monitoring paging on multiple beams.

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 user equipment (UE) includes monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold. The method includes stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.

In some aspects, a UE for wireless communication includes a memory and one or more processors coupled to the memory. For example, the one or more processors may be operatively, electronically, communicatively, or otherwise coupled to the memory. The memory includes instructions executable by the one or more processors to cause the UE to monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that an SINR of the serving beam does not satisfy a first SINR threshold, and stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.

In some aspects, a non-transitory computer-readable medium stores one or more instructions for wireless communication, the one or more instructions, when executed by one or more processors of a UE, cause the UE to monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination an SINR of the serving beam does not satisfy a first SINR threshold, and stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.

In some aspects, an apparatus for wireless communication includes means for monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that an SINR of the serving beam does not satisfy a first SINR threshold, and means for stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.

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 user equipment (UE) in a wireless network, in accordance with various aspects of the present disclosure.

Fig. 3 is a diagram illustrating an example of paging search spaces in a paging occasion, in accordance with various aspects of the present disclosure.

Fig. 4 is a diagram illustrating example of monitoring paging on multiple beams, in accordance with various aspects of the present disclosure.

Fig. 5 is a diagram illustrating example of monitoring paging on multiple beams, in accordance with various aspects of the present disclosure.

Fig. 6 is a diagram illustrating an example process performed, for example, by a UE, 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 monitoring paging on multiple beams, 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 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 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, UE 120 may include means for monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold, means for stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded, and/or the like. In some aspects, such means may include one or more components of UE 120 described in connection with Fig. 2, such as controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.

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 paging search spaces in a paging occasion, in accordance with various aspects of the present disclosure.

In NR, a base station may repeat the same paging message and short message in multiple beams. It is up to a UE to determine how to receive the paging message. Example 300 is a table showing a paging occasion during which the UE may monitor for a paging message. The table is for FR1 with a subcarrier spacing of 30 kilohertz and shows there may be eight paging search spaces for synchronization signal blocks (SS-SSBs) in the paging occasion. Each paging search space may correspond to a beam, and SSBs may be used to indicate beams. A first paging search space may be a common search space.

A paging search space in example 300 is two slots, but a paging search space may be a different quantity of slots, depending on the configuration for the paging occasion. If the UE is to monitor all paging search spaces corresponding to all of the beams, then the UE monitors 16 continuous slots. If the UE is to monitor the serving beam only, then the UE monitors only two slots.

The UE may monitor a paging search space that corresponds to the serving beam. Normally, the serving beam may be the beam with the best reference signal received power (RSRP) , but this does not take into consideration a reference signal received quality (RSRQ) or an SINR of the serving beam (e.g., SSB SINR) . If the serving beam suffers interference from an overlapping beam or another object, the UE may not receive a paging message when the UE monitors the paging search space only for the serving beam. In multi-beam operations, each beam may have a different paging search space, and if the UE has to monitor all of the paging search spaces for a paging message, the UE may increase power consumption. In other words, the UE may consume power, processing resources, and signaling resources monitoring all paging search spaces or waste time, power, processing resources, and signaling resources by not successfully receiving a paging message at all.

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

Fig. 4 is a diagram illustrating example 400 of monitoring paging on multiple beams, in accordance with various aspects of the present disclosure. As shown in Fig. 4, example 400 includes communication between BS 410 (e.g., a BS 110 depicted in Figs. 1 and 2) and a UE 420 (e.g., a UE 120 depicted in Figs. 1 and 2) . In some aspects, BS 410 and UE 420 may be included in a wireless network, such as wireless network 100. BS 410 and UE 420 may communicate on a wireless access link, which may include an uplink and a downlink.

Even though a serving beam may be a stronger signal, there may be too much interference to successfully decode an SSB in a paging message on the serving beam. According to various aspects described herein, a UE may monitor paging search spaces for other beams during a paging occasion when an SINR of the serving beam is below a first SINR threshold. The UE may select, as the other beams, beams that satisfy a second SINR threshold that is less than or equal to the first SINR threshold. In this way, the UE is monitoring paging search spaces corresponding to beams that may have less interference than the serving beam, and the UE is not necessarily monitoring all of the paging search spaces. In fact, there may be a maximum quantity of beams or paging search spaces to monitor in a paging occasion. In some aspects, beams may be selected in an order of descending SINR (beams with less interference first) , which may give the UE a better chance of receiving a paging message sooner. In this way, the UE may successfully receive a paging message while monitoring fewer beams. As a result, paging performance is improved, and the UE conserves time, power, processing resources, and signaling resources.

As shown by reference number 430, BS 410 may transmit paging messages on beams that are configured for providing the paging messages. As shown by reference number 435, UE 420 may determine that a serving beam has an SINR that does not satisfy a SINR threshold (e.g., minimum SINR in decibels or decibel-milliwatts) and thus UE 420 may monitor paging search spaces that correspond to beams other than the serving beam. The SINR threshold may be configurable and may be used to judge whether monitoring should take place on multiple beams. There may be a maximum quantity of other beams to monitor. For example, the maximum quantity may be less than eight for FR1 and less than 64 for FR2. The other beams may be selected only if a SINR is above another configurable SINR threshold. Otherwise, UE 420 may end up monitoring beams with more interference. This SINR threshold may be less than or equal to the SINR threshold used for the serving beam. While the operations discussed herein involve SINR thresholds, in some aspects, operations may also involve, alternatively or additionally, RSRQ thresholds. In some aspects, RSRP thresholds may be used for the serving beam and/or the other beams.

In some aspects, UE 420 may monitor paging search spaces in an order that corresponds to a descending order of SINR for the other beams. Better beams may be monitored first, rather than stepping through a regular order of beams. In some aspects, UE 420 may monitor paging search spaces in an increasing order of beam index or SSB identifier. For example, the selected beams may be {5, 3, 1} , where SINR of SSB#5 > SSB#3 > SSB#1. UE 420 may first monitor, in the next paging occasion, a paging search space that corresponds to beam 1, then a paging search space for beam 3, and then a paging search space for beam 5. In sum, UE 420 may search a quantity of paging search spaces that gives UE 420 a chance of successfully receiving a paging message while not wasting time, power, processing resources, and signaling resources by monitoring beams that have less chance of success.

As shown by reference number 440, UE 420 may stop monitoring paging search spaces based at least in part on a determination that a paging message in one of the paging search spaces is successfully decoded. For example, an SSB may have been successfully decoded. Otherwise, UE 420 continues to monitor paging search spaces for selected beams in the paging occasion. If UE 420 is not successful in receiving a paging message during the paging occasion, UE 420 continues to the next paging occasion.

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

Fig. 5 is a diagram illustrating example 500 of monitoring paging on multiple beams, in accordance with various aspects of the present disclosure. Fig. 5 shows a flowchart for how a UE may monitor paging search spaces in a paging occasion.

If the serving beam has an SINR that is equal to or greater than a first SINR threshold (e.g., poorSinrThresholdSSB) , the UE may monitor a paging search space that corresponds to the serving beam. If the serving beam has an SINR that is less than the first SINR threshold, the UE may monitor paging search spaces in the paging occasion that correspond to other beams. This may involve selecting beams that satisfy a second SINR threshold (e.g., limitSinrMonitorThreshold) and arranging the selected beams in a descending order by SINR. The UE may monitor paging search spaces that correspond to the selected beams, in the arranged order. There may be a maximum quantity of beams to monitor (e.g., maxPagingMonitorBeam) .

If the UE is successful in decoding a paging message, the UE may stop monitoring for a paging message. If the UE is not successful, the UE may continue to monitor paging search spaces that were selected for the paging occasion.

As indicated above, Fig. 5 is provided as an example. Other examples may differ from what is described with regard to Fig. 5.

Fig. 6 is a diagram illustrating an example process 600 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 600 is an example where the UE (e.g., a UE 120 depicted in Figs. 1 and 2. UE 420 depicted in Fig. 4, and/or the like) performs operations associated with monitoring paging on multiple beams.

As shown in Fig. 6, in some aspects, process 600 may include monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that an SINR of the serving beam does not satisfy a first SINR threshold (block 610) . For example, the UE (e.g., using 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; and/or using 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) may monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that an SINR of the serving beam does not satisfy a first SINR threshold, as described above.

As further shown in Fig. 6, in some aspects, process 600 may include stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded (block 620) . For example, the UE (e.g., using 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; and/or using 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) may stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded, as described above.

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 paging message includes an SSB.

In a second aspect, alone or in combination with the first aspect, process 600 includes selecting the one or more beams such that each beam of the one or more beams satisfies a second SINR threshold.

In a third aspect, alone or in combination with one or more of the first and second aspects, a quantity of the one or more beams does not exceed a maximum quantity of beams.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the monitoring the one or more paging search spaces includes monitoring the one or more paging search spaces in an order that is based at least in part on a descending order of SINR for the one or more beams that correspond to the one or more paging search spaces.

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.

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, software, and/or a combination of hardware and software. As used herein, a processor is implemented in hardware, software, and/or a combination of hardware and software. Software is to be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and/or the like, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

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.

It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, software, 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

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:

monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold; and

stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.
The method of claim 1, wherein the paging message includes a synchronization signal block.
The method of claim 1, further comprising selecting the one or more beams such that each beam of the one or more beams satisfies a second SINR threshold.
The method of claim 1, wherein a quantity of the one or more beams does not exceed a maximum quantity of beams.
The method of claim 1, wherein the monitoring the one or more paging search spaces includes monitoring the one or more paging search spaces in an order that is based at least in part on a descending order of SINR for the one or more beams that correspond to the one or more paging search spaces.
A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors coupled to the memory, the memory comprising instructions executable by the one or more processors to cause the UE to:

monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold; and

stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.
A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions, when executed by one or more processors of a user equipment (UE) , cause the UE to:

monitor one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold; and

stop the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.
An apparatus for wireless communication, comprising:

means for monitoring one or more paging search spaces, in a paging occasion, that correspond to one or more beams other than a serving beam based at least in part on a determination that a signal to noise plus interference ratio (SINR) of the serving beam does not satisfy a first SINR threshold; and

means for stopping the monitoring of the one or more paging search spaces in the paging occasion based at least in part on a determination that a paging message in the one or more paging search spaces has been successfully decoded.