Narrowband reference signal for UE-specific discontinuous reception cycle

Abstract

In summary, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) may perform the following operations: identifying a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first discontinuous reception (DRX) cycle parameter set; identifying a subset of time instances of the set of time instances within which a narrowband reference signal is to be monitored without regard to the presence of paging on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and communicating based at least on the set of time instances and the subset of time instances. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 910,953, filed on October 4, 2019, entitled “NARROWBAND REFERENCE SIGNAL FOR UE-SPECIFIC DISCONTINUOUS RECEPTION CYCLE,” and U.S. Non-Provisional Patent Application No. 17 / 060,947, filed on October 1, 2020, entitled “NARROWBAND REFERENCE SIGNAL FOR USEREQUIPMENT SPECIFIC DISCONTINUOUS RECEPTION CYCLE,” which are expressly incorporated herein by reference. Technical Field

[0003]

[0006] Generally speaking, aspects of the present disclosure relate to wireless communications and to techniques and apparatuses related to narrowband reference signals (NRS) for discontinuous reception (DRX) cycles specific to user equipment (UE). Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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 collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless communication network may include multiple base stations (BSs) that can support communications for multiple user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), wireless head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at city, country, region, and even global levels. New Radio (NR) (which may also be referred to as 5G) is a set of enhancements to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to be better integrated with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, so as to better support mobile broadband Internet access. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements to NR and LTE technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the invention

[0007] In some aspects, a wireless communication method performed by a user equipment (UE) may include: identifying a set of time instances to monitor for paging, wherein the set of time instances is identified at least in part based on a first discontinuous reception (DRX) cycle parameter set; identifying a subset of time instances of the set of time instances within which a narrowband reference signal (NRS) is to be monitored without regard to whether paging exists on the subset of time instances, wherein the subset of time instances is identified based at least on a second DRX cycle parameter set; and communicating based at least on the set of time instances and the subset of time instances.

[0008] In some aspects, a method of wireless communication performed by a base station may include: identifying a set of time instances for paging associated with a UE, wherein the set of time instances is identified at least in part based on a first DRX cycle parameter set; identifying a subset of time instances of the set of time instances within which an NRS is to be sent regardless of whether paging is sent on the subset of time instances, wherein the subset of time instances is identified based at least on a second DRX cycle parameter set; and communicating based at least on the set of time instances and the subset of time instances.

[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors coupled to the memory. The memory may include instructions executable by the one or more processors to cause the UE to: identify a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; identify a subset of time instances of the set of time instances within which NRS is to be monitored without regard to whether paging exists on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and communicate based at least on the set of time instances and the subset of time instances.

[0010] In some aspects, a base station for wireless communication may include a memory and one or more processors coupled to the memory. The memory may include instructions executable by the one or more processors to cause the base station to: identify a set of time instances for paging associated with a UE, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; identify a subset of time instances of the set of time instances within which an NRS is to be sent without regard to whether paging is sent on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and communicate based at least on the set of time instances and the subset of time instances.

[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to perform the following operations: identifying a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; identifying a subset of time instances of the set of time instances within which NRS is to be monitored without regard to whether paging exists on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and communicating based at least on the set of time instances and the subset of time instances.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: identify a set of time instances for paging associated with a UE, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; identify a subset of time instances of the set of time instances within which an NRS is to be sent without regard to whether paging is sent on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and communicate based at least on the set of time instances and the subset of time instances.

[0013] In some aspects, an apparatus for wireless communication may include: a unit for identifying a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; a unit for identifying a subset of time instances of the set of time instances within which an NRS is to be monitored without regard to whether paging exists on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; and a unit for communicating based at least on the set of time instances and the subset of time instances.

[0014] In some aspects, an apparatus for wireless communication may include: a unit for identifying a set of time instances for paging associated with a UE, wherein the set of time instances is identified based at least in part on a first DRX cycle parameter set; a unit for identifying a subset of time instances of the set of time instances within which an NRS is to be sent regardless of whether paging is sent on the subset of time instances, wherein the subset of time instances is identified based at least on a second DRX cycle parameter set; and a unit for communicating based at least on the set of time instances and the subset of time instances.

[0015] In general, various aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices and / or processing systems as fully described herein with reference to the drawings, descriptions and appendices and as illustrated by the drawings, descriptions and appendices.

[0016] The foregoing has been fairly extensively outlined according to the features and technical advantages of the examples of the present disclosure so that the specific embodiments below can be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By referring to some of the various aspects shown in the accompanying drawings, a more specific description of the invention briefly summarized above can be obtained so that the above-mentioned features of the present disclosure can be understood in detail. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope of the present disclosure, as the description may recognize other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication system in accordance with various aspects of the present disclosure.

[0019] Figure 2 is a block diagram conceptually illustrating an example of a base station in a wireless communication network communicating with a UE according to various aspects of the present disclosure.

[0020] Figure 3 is a diagram illustrating an example of determining narrowband reference signal (NRS) time instances using a cell-specific discontinuous (DRX) cycle parameter set in accordance with various aspects of the present disclosure.

[0021] Figure 4 is a diagram illustrating an example of determining NRS time instances using a cell-specific set of DRX cycle parameters in accordance with various aspects of the present disclosure.

[0022] Figure 5 is a diagram illustrating an example of determining an NRS time instance using a DRX cycle parameter set for identifying an NRS time instance according to various aspects of the present disclosure.

[0023] Figure 6 is a diagram illustrating example processes performed, for example, by a user device, according to various aspects of the present disclosure.

[0024] Figure 7is a diagram illustrating example processes performed, for example, by a base station according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0025] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be comprehensive and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings of this article, it should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be practiced. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0026] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices 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, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0027] It should be noted that although various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).

[0028] Figure 11 is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network (such as a 5G or NR network). The wireless network 100 may include a plurality of BSs 110 (shown as BSs 110a, BSs 110b, BSs 110c, and BSs 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0029] 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 residence) and may allow restricted access by UEs associated 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 Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (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.

[0030] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections, virtual networks, and / or similar interfaces using any suitable transport networks).

[0031] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that is capable of relaying transmissions for other UEs. Figure 1 In the example shown in FIG. 1 , a relay station 110 d may communicate with a macro BS 110 a and a UE 120 d to facilitate communication between the BS 110 a and the UE 120 d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0032] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0033] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other via a wireless or wired backhaul (eg, directly or indirectly).

[0034] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. UEs may also be referred to as access terminals, terminals, mobile stations, subscriber units, stations, etc. UEs may be cellular phones (e.g., smart phones), personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablet devices, cameras, gaming devices, netbooks, smartbooks, ultrabooks, medical devices or apparatuses, biometric sensors / devices, wearable devices (smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets, etc.)), entertainment devices (e.g., music or video devices, or satellite radio units, etc.), vehicle-mounted components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, or any other suitable device configured to communicate via wireless or wired media.

[0035] Some UEs may be considered as 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, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as user premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0036] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0037] 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 base station 110 as an intermediary for communicating with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh network, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0038] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1) (which can span from 410 MHz to 7.125 GHz), and / or can communicate using an operating frequency band having a second frequency range (FR2) (which can span from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as intermediate 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, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise expressly stated, it should be understood that the term "sub-6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0039] As indicated above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0040] Figure 2 Base station 110 and UE 120 (which may be Figure 1 1. Block diagram of a design 200 of a base station in a base station and a UE in a UE. 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.

[0041] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, a synchronization signal may be generated using position coding to convey additional information.

[0042] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0043] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the 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, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide decoded data to a data sink 239 and decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0044] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other components in the base station 110 may perform one or more techniques associated with narrowband reference signal (NRS) signaling for UE-specific discontinuous reception (DRX) configurations, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 6 The process of 600 Figure 7 The operations of process 700 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 for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 6 The process of 600 Figure 7 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0045] In some aspects, UE 120 may include: means for identifying a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; means for identifying a subset of time instances of the set of time instances within which the NRS is to be monitored without regard to the presence of paging on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; means for communicating based at least on the set of time instances and the subset of time instances; and the like. In some aspects, such means may include combining Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, demodulator 254, MIMO detector 256, receive processor 258, etc.

[0046] In some aspects, base station 110 may include: means for identifying a set of time instances for paging associated with a UE, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters; means for identifying a subset of time instances of the set of time instances within which an NRS is to be sent without regard to whether a paging is sent on the subset of time instances, wherein the subset of time instances is identified based at least on a second set of DRX cycle parameters; means for communicating based at least on the set of time instances and the subset of time instances; and so on. In some aspects, such means may include combining Figure 2 One or more components of the base station 110 are depicted, such as an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a transmit processor 220, a TX MIMO processor 230, a MOD 232, an antenna 234, and the like.

[0047] As indicated above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0048] Some types of UEs, such as low-power UEs or high-efficiency UEs (e.g., IoT UEs, NB-IoT UEs, eMTC UEs, etc.), may communicate using a narrowband relative to a baseline bandwidth. A narrowband reference signal (NRS) may be used as a cell-specific reference signal for narrowband deployments. NRS may be used by UEs for cell search and initial acquisition, downlink channel quality measurements, channel estimation for coherent demodulation and / or detection at the UE, and the like. In some aspects, NRS may be sent in a non-anchor carrier. For example, NRS may be sent in a non-anchor carrier regardless of whether there is paging on a paging occasion that includes NRS. In order to reduce the overhead associated with NRS, not all paging occasions have an associated NRS. For example, for a case of paging occasions with a large density, every other paging occasion may have an NRS.

[0049] The UE may monitor paging based at least in part on a discontinuous reception (DRX) cycle. For example, the DRX cycle may specify the frequency with which the UE is to monitor paging occasions for paging. The paging message may include downlink control information (DCI) scrambled with a paging radio network temporary identifier (P-RNTI) for the UE to which the paging message is directed. In some aspects, the DRX cycle may be defined based at least in part on a DRX cycle parameter, which may identify the number of radio frames (or an amount of time corresponding to the number of radio frames) between each paging occasion within which the UE is to monitor paging. For example, a DRX cycle parameter (T) of 1024 radio frames may mean that the UE wakes up on every 1024th radio frame to monitor the paging occasion for paging.

[0050] The combination of (i) not all paging occasions have an associated NRS and (ii) the DRX cycle of the UE may result in potential unfairness across UEs, as some UEs may always detect the NRS while other UEs may never detect the NRS. For example, consider the following case: one paging occasion per radio frame, a DRX cycle parameter of 1024 radio frames, and an NRS on every other paging occasion (and therefore, an NRS on every other radio frame, since there is one paging occasion per radio frame). In this case, with 1024 UE groups (where the UE group of UEs is identified by UE_ID modulo 1024), the presence of NRS may be as shown in Table 1:

[0051] Table 1

[0052] Wireless Frame UE group NRS 0 0 yes 1 1 no 2 2 yes 3 3 no 4 4 yes 5 5 no … … … 1023 1023 no 1024 0 yes 1025 1 no

[0053] It can be seen that a UE group with an even index may always be associated with an NRS, while a UE group with an odd index may never be associated with an NRS. In some aspects, an offset may be used so that a UE group associated with an NRS in a first DRX cycle is not associated with the NRS in a second DRX cycle, and a UE group not associated with any NRS in a first DRX cycle is associated with an NRS in a second DRX cycle, as shown in Table 2:

[0054] Table 2

[0055] Wireless Frame UE group NRS 0 0 yes 1 1 no 2 2 yes 3 3 no 4 4 yes 5 5 no … … … 1023 1023 no 1024 0 no 1025 1 yes

[0056] In general, the equation for the presence of an NRS on a given radio frame may be of the following form:

[0057] R = (PO_Index + (X div T)) mod 2, where:

[0058] PO_Index is the index of a paging occasion (PO) within a DRX cycle:

[0059] PO_Index=(SFN / Ns*N+i_s)mod T,

[0060] X = System Frame Number (SFN) + 1024*H-SFN, and

[0061] T is the DRX period measured in radio frames.

[0062] If R=1, the PO is associated with the NRS. If R=0, the PO is not associated with the NRS. A paging occasion may be referred to herein as being associated with a time instance. For example, a UE may identify a set of time instances associated with a paging occasion, a set of time instances associated with an NRS, and the like.

[0063] The above configuration can be used for a cell-specific DRX cycle (e.g., configured for a specific cell). However, in some aspects, the DRX cycle can be UE-specific. For example, a UE can be configured with UE-specific DRX cycle parameters, and paging can be monitored at least in part based on the UE-specific DRX cycle parameters and / or the cell-specific DRX cycle parameters. In this case, if each UE follows the corresponding UE-specific DRX cycle to derive the presence of an NRS, network overhead may increase because if any one or more UEs expect an NRS on a given paging occasion, the base station may need to send an NRS on the given paging occasion.

[0064] Some techniques and apparatus described herein provide for determining a set of time instances associated with paging occasions, and a subset of time instances of the set of time instances associated with NRSs. For example, a UE may determine a set of time instances based at least in part on a first DRX cycle parameter set (e.g., associated with one or more first DRX cycles (such as cell-specific DRX cycles, UE-specific DRX cycles, etc.)), and may determine a subset of time instances based at least in part on a second DRX cycle parameter set (e.g., associated with one or more second DRX cycles (such as cell-specific DRX cycles, UE-specific DRX cycles, etc.)). As described in more detail elsewhere herein, determination of a subset of time instances may reduce the number of NRSs to be sent by a base station. Thus, network overhead and communication resource utilization may be reduced, and communication resources of a base station may be saved.

[0065] Figure 3 is a diagram illustrating an example 300 of determining NRS time instances using a cell-specific DRX cycle parameter set according to various aspects of the present disclosure. Figure 3As shown, example 300 includes UE 120 and BS 110. Figure 3-5 The described operations are shown as being performed by a single BS 110, but in some aspects, some or all of these operations may be performed by two or more different BSs 110 or a network associated with BS 110 (e.g., a gNB, a central unit, a network controller, etc.).

[0066] As in Figure 3 1 and as shown by reference numeral 310, BS 110 may provide information identifying a UE-specific set of DRX cycle parameters to UE 120. For example, the UE-specific set of DRX cycle parameters may identify a DRX cycle length (e.g., a value of T) to be used by UE 120. In some aspects, BS 110 may configure multiple UEs 120 (e.g., UEs 120 covered by BS 110 or connected to a cell provided by BS 110) with corresponding UE-specific sets of DRX cycle parameters. In some cases, the UE-specific DRX cycle may be set by a network entity other than BS 110 (e.g., a mobility management entity (MME) or the like), and BS 110 may send the configuration to UE 120 over the air interface. In some aspects, the information identifying the UE-specific set of DRX cycle parameters may be transmitted via radio resource control (RRC) signaling, etc.

[0067] As indicated by reference numeral 320, BS 110 may provide information identifying a cell-specific set of DRX cycle parameters to UE 120. For example, the cell-specific set of DRX cycle parameters may identify a DRX cycle length (e.g., a value of T) associated with a cell provided by BS 110. In some aspects, BS 110 may configure UE 120 covered by BS 110 or connected to a cell provided by BS 110 with the cell-specific set of DRX cycle parameters.

[0068] As indicated by reference numeral 330, the UE 120 may identify a set of time instances (e.g., a set of paging occasions) to monitor for paging based at least in part on a UE-specific set of DRX cycle parameters and / or a cell-specific set of DRX cycle parameters. For example, the UE 120 may use the smaller of the UE-specific set of DRX cycle parameters and the cell-specific set of DRX cycle parameters to identify the set of paging occasions. More specifically, if the UE-specific set of cycle parameters is T=512 radio frames and the cell-specific DRX cycle parameter is T=1024 radio frames, the UE 120 may identify a paging occasion every 512 radio frames. In some aspects, the UE 120 may use the larger of the UE-specific DRX cycle parameter and the cell-specific DRX cycle parameter, or different combinations of the UE-specific DRX cycle parameter and the cell-specific DRX cycle parameter.

[0069] As indicated by reference numeral 340, UE 120 may identify a subset of time instances within which to monitor NRS based at least in part on a cell-specific set of DRX cycle parameters. The subset of time instances may be a subset of a set of time instances (e.g., a suitable subset or another type of subset). In some aspects, UE 120 may identify the subset of time instances in the form shown in the following formula:

[0070] R=(PO_Index+(X div T))mod 2,

[0071] in:

[0072] PO_Index is the index of PO in a DRX cycle: PO_Index = (SFN*Ns*N / T+i_s),

[0073] X = SFN + 1024 * H - SFN, and

[0074] T is the cell-specific DRX cycle measured in radio frames.The variables used in the above formulas are defined in, for example, 3GPP Technical Specification 36.304.

[0075] In the above formula, if R=1, the corresponding PO is associated with the NRS. If R=0, the PO is not associated with the NRS. Therefore, relative to determining the NRS association according to the UE-specific DRX cycle configuration of the multiple UEs, the number of POs associated with the NRS is reduced. Therefore, according to the corresponding UE-specific DRX cycle configuration, relative to sending the NRS for each of the multiple UEs, the network overhead is reduced.

[0076] As shown by reference numeral 350, UE 120 and BS 110 may communicate based at least in part on the set of time instances and the subset of time instances. For example, BS 110 may send paging at one or more time instances of the set of time instances. As another example, BS 110 may send NRS at one or more time instances of the subset of time instances. UE 120 may monitor paging at the set of time instances, and may monitor NRS at the subset of time instances.

[0077] As indicated above, Figure 3 is provided as an example. Other examples may differ from those described above. Figure 3 Examples described.

[0078] Figure 4 4 is a diagram illustrating an example 400 of determining an NRS time instance using a cell-specific DRX cycle parameter set in accordance with various aspects of the present disclosure. As shown in example 400, BS 110 may configure UE 120 with a first UE-specific DRX cycle parameter set (shown by reference numeral 410) and a second DRX cycle parameter set (shown by reference numeral 420).

[0079] As shown by reference numeral 430, BS 110 may provide an indication to UE 120. The indication may indicate whether the second DRX cycle parameter set includes a single DRX cycle parameter or multiple DRX cycle parameters, described in more detail below. It should be noted that in some aspects, BS 110 may not provide the information shown by reference numeral 420. For example, UE 120 may determine the information shown by reference numeral 420. In some aspects, the specification may define whether the second DRX cycle parameter set includes a single parameter or multiple parameters. In some aspects, the indication shown by reference numeral 430 may be explicit (e.g., a bit in a system information block) or may be implicit. In such a case, if UE 120 receives a system information block parameter indicating support for UE-specific DRX and if the parameter is set to ON, UE 120 may determine that the second DRX cycle parameter includes multiple parameters. Otherwise, UE 120 may determine that the second DRX cycle parameter includes a single parameter.

[0080] As indicated by reference numeral 440, the UE 120 may identify a set of time instances based at least in part on a first UE-specific set of DRX cycle parameters and / or based at least in part on a cell-specific set of DRX cycle parameters. Figure 4 The configuration of the cell-specific DRX cycle parameter set is not shown. Figure 3Identifying a set of time instances based on a first UE-specific set of DRX cycle parameters and / or a cell-specific set of DRX cycle parameters is described in more detail.

[0081] As indicated by reference numeral 450, the UE 120 may identify the subset of time instances based at least in part on the second set of DRX cycle parameters. For example, the UE 120 may identify the subset of time instances based at least in part on whether the second set of DRX cycle parameters includes a single UE-specific DRX cycle parameter (e.g., a single value of T) or a plurality of UE-specific DRX cycle parameters (e.g., multiple values ​​of T), as indicated by the indication.

[0082] In the case where the second set of DRX cycle parameters includes a single UE-specific DRX cycle parameter, the UE 120 may use the single UE-specific DRX cycle parameter to identify the subset of time instances, such as in conjunction with Figure 3 The figure mark 340 is described.

[0083] In case the second DRX cycle parameters include a plurality of UE-specific DRX cycle parameters, the UE 120 may identify the subset of time instances as follows:

[0084]

[0085] In some aspects, the plurality of UE-specific DRX cycle parameters (e.g., i=1 to N) may include all UE-specific DRX cycle lengths configurable for the UE 120. In some aspects, the plurality of UE-specific DRX cycle parameters may include all UE-specific DRX cycle lengths configurable for the UE 120 and shorter than the cell-specific DRX cycle configuration of the UE 120. In some aspects, in conjunction with reference numeral 420, the plurality of UE-specific DRX cycle parameters may include all UE-specific DRX cycle lengths configurable for the UE 120.

[0086] As indicated by reference numeral 460, BS 110 and UE 120 may communicate based at least in part on the set of time instances and the subset of time instances. Figure 3 Described in more detail.

[0087] Figure 55 is a diagram illustrating an example 500 of determining an NRS time instance using a set of DRX cycle parameters for identifying an NRS time instance in accordance with various aspects of the present disclosure. As shown in example 500, BS 110 may configure UE 120 with a UE-specific set of DRX cycle parameters (shown by reference numeral 510) and a set of DRX cycle parameters for identifying a subset of time instances (shown by reference numeral 520). As shown by reference numeral 530, BS 110 may configure UE 120 with a cell-specific set of DRX cycle parameters.

[0088] As indicated by reference numeral 540, the UE 120 may identify the set of time instances based at least in part on a UE-specific set of DRX cycle parameters and / or based at least in part on a cell-specific set of DRX cycle parameters. Figure 3 Identifying a set of time instances based on a UE-specific set of DRX cycle parameters and a cell-specific set of DRX cycle parameters is described in more detail.

[0089] As indicated by reference numeral 550, UE 120 may identify the time instance subset based at least in part on the set of DRX cycle parameters for identifying the time instance subset. For example, the set of DRX cycle parameters for identifying the time instance subset may identify a value T′, and UE 120 may identify the time instance subset as follows:

[0090] R=(PO_Index+(X div T′)mod 2,

[0091] in:

[0092] PO_Index is the index of PO in a DRX cycle:

[0093] PO_Index = (SFN*Ns*N / T′+i_s), and

[0094] X=SFN+1024*H-SFN.

[0095] As indicated by reference numeral 560, BS 110 and UE 120 may communicate based at least in part on the set of time instances and the subset of time instances. Figure 3 Described in more detail.

[0096] It should be noted that in examples 300, 400, and 500, BS 110 may perform operations similar to those described in conjunction with reference numerals 330, 340, 440, 450, 540, and 550. For example, BS 110 may identify a set of time instances for paging and may identify a subset of time instances within which to send an NRS according to the procedures described in conjunction with reference numerals 330, 340, 440, 450, 540, and 550. BS 110 may send an NRS on the subset of time instances.

[0097] As indicated above, Figure 3-5 is provided as one or more examples. Other examples may differ from Figure 3-5 Examples described.

[0098] Figure 6 is a diagram illustrating an example process 600, performed, for example, by a UE, according to various aspects of the present disclosure. Example process 600 is an example in which a UE (eg, UE 120, etc.) performs operations associated with NRS for a UE-specific discontinuous reception cycle.

[0099] like Figure 6 As shown, in some aspects, process 600 may include identifying a set of time instances to monitor for paging, wherein the set of time instances is identified based at least in part on a first set of discontinuous reception (DRX) cycle parameters (block 610). For example, a UE (e.g., using controller / processor 280, etc.) may identify a set of time instances to monitor for paging, as described above. In some aspects, the set of time instances is identified based at least in part on a first set of DRX cycle parameters.

[0100] like Figure 6 As further shown, in some aspects, process 600 may include identifying a subset of time instances of the set of time instances within which a narrowband reference signal (NRS) is to be monitored without regard to the presence of paging at the subset of time instances, wherein the subset of time instances is identified based on at least a second set of DRX cycle parameters (block 620). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may identify a subset of time instances of the set of time instances within which a NRS is to be monitored without regard to the presence of paging at the subset of time instances, as described above. In some aspects, the subset of time instances is identified based on at least a second set of DRX cycle parameters.

[0101] like Figure 6As further shown, in some aspects, process 600 may include communicating based on at least the set of time instances and the subset of time instances (block 630). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may communicate based on at least the set of time instances and the subset of time instances, as described above.

[0102] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0103] In a first aspect, a first set of DRX cycle parameters comprises a UE-specific DRX cycle length, and a second set of DRX cycle parameters comprises a cell-specific DRX cycle length for a cell of the UE.

[0104] In a second aspect, alone or in combination with the first aspect, identifying the set of time instances is based at least in part on the first set of DRX cycle parameters and the second set of DRX cycle parameters.

[0105] In a third aspect, alone or in combination with one or more of the first and second aspects, the first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes multiple UE-specific DRX cycle lengths.

[0106] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the plurality of UE-specific DRX cycle lengths comprises all UE-specific DRX cycle lengths configurable for the UE.

[0107] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, the multiple UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length of the UE's cell.

[0108] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, a plurality of UE-specific DRX cycle lengths are configured for the UE.

[0109] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the process 600 includes: receiving an indication of whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

[0110] In the eighth aspect, alone or in combination with one or more aspects of the first to seventh aspects, the first DRX cycle parameter set corresponds to a UE-specific DRX cycle length, and the second DRX cycle parameter set corresponds to a DRX cycle length for identifying a subset of time instances associated with an NRS.

[0111] Although Figure 6 Example blocks of process 600 are shown, but in some aspects process 600 may include Figure 6 The blocks depicted in the process 600 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 600. Additionally or alternatively, two or more blocks in the blocks of process 600 may be executed in parallel.

[0112] Figure 7 is a diagram illustrating an example process 700, for example, performed by a base station, according to various aspects of the present disclosure. Example process 700 is an example in which a base station (eg, base station 110, etc.) performs operations associated with NRS for a UE-specific DRX cycle.

[0113] like Figure 7 As shown, in some aspects, process 700 may include identifying a set of time instances for paging associated with the UE, wherein the set of time instances is identified based at least in part on a first set of DRX cycle parameters (block 710). For example, a base station (e.g., using controller / processor 240, etc.) may identify a set of time instances for paging associated with the UE, as described above. In some aspects, the set of time instances is identified based at least in part on the first set of DRX cycle parameters.

[0114] like Figure 7 As further shown, in some aspects, process 700 may include identifying a subset of time instances of the set of time instances within which the NRS is to be sent without regard to whether a page is sent on the subset of time instances, wherein the subset of time instances is identified based on at least a second set of DRX cycle parameters (block 720). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may identify a subset of time instances of the set of time instances within which the NRS is to be sent without regard to whether a page is sent on the subset of time instances, as described above. In some aspects, the subset of time instances is identified based on at least a second set of DRX cycle parameters.

[0115] like Figure 7As further shown, in some aspects, process 700 may include communicating based on at least the set of time instances and the subset of time instances (block 730). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may communicate based on at least the set of time instances and the subset of time instances, as described above.

[0116] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0117] In a first aspect, a first set of DRX cycle parameters comprises a UE-specific DRX cycle length of a UE, and a second set of DRX cycle parameters comprises a cell-specific DRX cycle length of a base station.

[0118] In a second aspect, alone or in combination with the first aspect, identifying the set of time instances is based at least in part on the first set of DRX cycle parameters and the second set of DRX cycle parameters.

[0119] In a third aspect, alone or in combination with one or more of the first and second aspects, the first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes multiple UE-specific DRX cycle lengths.

[0120] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the plurality of UE-specific DRX cycle lengths comprises all UE-specific DRX cycle lengths configurable for the UE.

[0121] In the fifth aspect, alone or in combination with one or more aspects of the first to fourth aspects, the multiple UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length of the base station.

[0122] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 700 includes: configuring a plurality of UE-specific DRX cycle lengths for the UE.

[0123] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 700 includes: sending an indication of whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

[0124] In the eighth aspect, alone or in combination with one or more aspects of the first to seventh aspects, the first DRX cycle parameter set corresponds to a UE-specific DRX cycle length, and the second DRX cycle parameter set corresponds to a DRX cycle length for identifying a subset of time instances associated with an NRS.

[0125] Although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 The blocks depicted in the process 700 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 700. Additionally or alternatively, two or more blocks in the blocks of process 700 may be executed in parallel.

[0126] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0127] As used herein, the term "component" is intended to be broadly interpreted as hardware, software, 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. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes, functions, etc.

[0128] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0129] It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware, software, and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation of the various aspects. Therefore, the operation and behavior of the systems and / or methods are 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.

[0130] Even if the specific combination of features is recorded 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 can be combined in a manner that is not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below can only directly depend on a claim, the disclosure of various aspects includes the combination of each dependent claim and each other claim in the claim set. The phrase "at least one of" related to the list of items refers to any combination of those items, including a single member. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and any combination with multiples of the same element (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0131] In the elements, actions or instructions used herein, there is no element, action or instruction that should be interpreted as key or necessary, unless clearly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects (for example, related projects, irrelevant projects, combinations of related projects and irrelevant projects, etc.), and can be used interchangeably with "one or more". In the case of only expecting a project, the phrase "only one" or similar language is used. In addition, as used herein, the term "has, have, having" and / or similar terms are intended to be open terms. In addition, unless otherwise explicitly stated, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: receiving information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; identifying a paging occasion set for monitoring paging of the UE, wherein the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of a cell of the UE; identifying a set of time instances during which a narrowband reference signal (NRS) is to be monitored without regard to the presence of paging at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

2. The method according to claim 1, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

3. The method according to claim 1, wherein: The second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

4. The method according to claim 3, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

5. The method according to claim 3, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

6. The method according to claim 3, wherein: The plurality of UE-specific DRX cycle lengths are configured for the UE.

7. The method according to claim 1, further comprising: An indication is received as to whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

8. The method according to claim 1, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

9. A method of wireless communication performed by a network entity, comprising: sending information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; identifying a paging occasion set associated with a user equipment (UE), wherein the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of the network entity; identifying a set of time instances during which a narrowband reference signal (NRS) is to be transmitted without regard to whether paging is transmitted at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

10. The method according to claim 9, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length of the UE, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

11. The method according to claim 9, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

12. The method according to claim 11, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

13. The method according to claim 11, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

14. The method according to claim 11, further comprising: The multiple UE-specific DRX cycle lengths are configured for the UE.

15. The method according to claim 9, further comprising: An indication is sent as to whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

16. The method according to claim 9, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

17. An apparatus for a user equipment (UE) for wireless communication, comprising: means for receiving information identifying a first set of discontinuous reception (DRX) cycle parameters and a second set of DRX cycle parameters; means for identifying a set of paging occasions for monitoring paging of the UE, wherein the set of paging occasions is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of a cell of the UE means for identifying a set of time instances during which a narrowband reference signal (NRS) is to be monitored without regard to the presence of paging at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Means for communicating based at least on the set of paging occasions and the set of time instances.

18. The device according to claim 17, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

19. The device according to claim 17, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

20. The device according to claim 19, wherein The plurality of UE-specific DRX cycle lengths comprises all UE-specific DRX cycle lengths configurable for the apparatus.

21. The device according to claim 19, wherein The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

22. The device according to claim 19, wherein The plurality of UE-specific DRX cycle lengths are configured for the apparatus.

23. The apparatus of claim 17, further comprising: Means for receiving an indication of whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

24. The device according to claim 17, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

25. An apparatus of a network entity for wireless communication, comprising: means for transmitting information for identifying a first set of discontinuous reception (DRX) cycle parameters and a second set of DRX cycle parameters; means for identifying a set of paging occasions associated with a user equipment (UE), wherein the set of paging occasions is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of the network entity; means for identifying a set of time instances during which a narrowband reference signal (NRS) is to be transmitted without regard to whether paging is transmitted at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Means for communicating based at least on the set of paging occasions and the set of time instances.

26. The device according to claim 25, wherein The first DRX cycle parameter set includes a UE-specific DRX cycle length of the UE, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

27. The device according to claim 25, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

28. The device according to claim 27, wherein The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

29. The device according to claim 27, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

30. The apparatus of claim 27, further comprising: means for configuring the plurality of UE-specific DRX cycle lengths for the UE.

31. The apparatus of claim 25, further comprising: Means for sending an indication of whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

32. The apparatus of claim 25, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

33. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory storing instructions capable of configuring the one or more processors to cause the UE to: receiving information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; identifying a paging occasion set for monitoring paging of the UE, wherein the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of a cell of the UE; identifying a set of time instances during which a narrowband reference signal (NRS) is to be monitored without regard to the presence of paging at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

34. The UE according to claim 33, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

35. The UE according to claim 33, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

36. The UE according to claim 35, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

37. The UE according to claim 35, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

38. The UE according to claim 35, wherein: The plurality of UE-specific DRX cycle lengths are configured for the UE.

39. The UE according to claim 33, wherein: The instructions may further configure the one or more processors to cause the UE to: An indication is received as to whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

40. The UE according to claim 33, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

41. A network entity for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the memory storing instructions capable of configuring the one or more processors to cause the network entity to: sending information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; identifying a paging occasion set associated with a user equipment (UE), wherein the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length of the network entity; identifying a set of time instances during which a narrowband reference signal (NRS) is to be transmitted without regard to whether paging is transmitted at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

42. The network entity according to claim 41, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length of the UE, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

43. The network entity according to claim 41, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

44. The network entity according to claim 43, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

45. The network entity according to claim 43, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths that are shorter than or equal to the cell-specific DRX cycle length.

46. ​​The network entity of claim 43, wherein: The instructions can also configure the one or more processors to cause the network entity to: The multiple UE-specific DRX cycle lengths are configured for the UE.

47. The network entity of claim 41, wherein: The instructions can also configure the one or more processors to cause the network entity to: An indication is sent as to whether the second DRX cycle parameter set includes multiple DRX cycle configurations or a single DRX cycle configuration.

48. The network entity of claim 41, wherein: The first set of DRX cycle parameters corresponds to a UE-specific DRX cycle length, and wherein the second set of DRX cycle parameters corresponds to a DRX cycle length for identifying the set of time instances associated with the NRS.

49. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions being capable of configuring one or more processors to cause a user equipment (UE) to: receiving information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; Identifying a set of paging occasions for the UE to monitor paging, wherein: the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length; identifying a set of time instances during which a narrowband reference signal (NRS) is to be monitored without regard to the presence of paging at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

50. The non-transitory computer readable medium of claim 49, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

51. The non-transitory computer readable medium of claim 49, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

52. The non-transitory computer readable medium of claim 51, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

53. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions being capable of configuring one or more processors to cause a network entity to: sending information for identifying a first discontinuous reception (DRX) cycle parameter set and a second DRX cycle parameter set; identifying a paging occasion set associated with a user equipment (UE), wherein: the paging occasion set is identified based on at least a comparison between at least a first DRX parameter value of the first DRX cycle parameter set and a second DRX parameter value of the second DRX cycle parameter set, the comparison being used to identify a minimum of at least the first DRX parameter value and the second DRX parameter value, wherein the second DRX cycle parameter set comprises a cell-specific DRX cycle length; identifying a set of time instances during which a narrowband reference signal (NRS) is to be transmitted without regard to whether paging is transmitted at the set of time instances, wherein the set of time instances is identified based on at least the second set of DRX cycle parameters; and Communicating is performed based at least on the set of paging occasions and the set of time instances.

54. The non-transitory computer readable medium of claim 53, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a cell-specific DRX cycle parameter set.

55. The non-transitory computer readable medium of claim 53, wherein: The first DRX cycle parameter set includes a UE-specific DRX cycle length, and the second DRX cycle parameter set includes a plurality of UE-specific DRX cycle lengths.

56. The non-transitory computer readable medium of claim 55, wherein: The plurality of UE-specific DRX cycle lengths include all UE-specific DRX cycle lengths configurable for the UE.

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