Handover measurements associated with multiple threshold quantities

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may send a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount, and sending the measurement report to the network entity. The UE can monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, where if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report that triggers the second handover procedure is sent, the second threshold amount being greater than the first threshold amount. Numerous other aspects are described.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for handover measurements associated with multiple threshold quantities. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of 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 set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] A wireless network may include one or more network entities that support communications for a user equipment (UE) or multiple UEs. A UE may communicate with a network entity via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network entity to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network entity.

[0004] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is an enhancement set to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0005] Some aspects described herein relate to a method of performing wireless communications by a user equipment (UE). The method may include sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount. The method may include monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, sending a second measurement report that triggers the second handover procedure, the second threshold amount being greater than the first threshold amount.

[0006] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount. The one or more processors may be configured to monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, when the first measurement is greater than the second measurement by a second threshold amount, a second measurement report that triggers the second handover procedure is sent, and the second threshold amount is greater than the first threshold amount.

[0007] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to send a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount. The instruction set, when executed by one or more processors of the UE, may cause the UE to monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report is sent to trigger the second handover procedure, and the second threshold amount is greater than the first threshold amount.

[0008] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount. The apparatus may include means for monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, the second measurement report is sent to trigger the second handover procedure, the second threshold amount being greater than the first threshold amount.

[0009] The various aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, network entities, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.

[0010] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of protection of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0011] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). 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 thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0013] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0014] Figure 2 is a diagram illustrating an example of a network entity communicating with a user equipment (UE) in a wireless network according to the present disclosure.

[0015] Figure 3 is a diagram illustrating an example of an open radio access network architecture according to the present disclosure.

[0016] Figure 4 is a diagram illustrating an example of a make-before-break handover according to the present disclosure.

[0017] Figure 5 is a diagram illustrating an example of a block diagram associated with performing handover measurements associated with a plurality of threshold quantities according to the present disclosure.

[0018] Figure 6is a diagram of an example associated with handover measurements associated with multiple threshold quantities according to the present disclosure.

[0019] Figure 7 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0020] Figure 8 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0021] 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 construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. 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 in addition to or different from 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 the claims.

[0022] 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 these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0023] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technologies (RATs), various aspects of the present disclosure may be applicable to other RATs, such as 3G RATs, 4G RATs, and / or post-5G RATs (e.g., 6G).

[0024] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network entities (NEs) 110 (shown as NEs 110a, NEs 110b, NEs 110c, and NEs 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UEs 120a, UEs 120b, UEs 120c, UEs 120d, and UEs 120e), and / or other network nodes or entities. The network entity 110 is an entity that communicates with the UE 120. The network entity 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), and / or a decomposed portion of a base station according to an open radio access network (O-RAN) architecture, such as a centralized unit (CU), a distributed unit (DU), or a radio unit (RU), which will be combined with Figure 3 Described in more detail. Each network entity 110 can provide communication coverage for a specific geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​the network entity 110 and / or the network entity subsystem serving the coverage area, depending on the context in which the term is used.

[0025] The network entity 110 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., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). The network entity 110 for a macro cell may be referred to as a macro network entity or a macro NE. The network entity 110 for a pico cell may be referred to as a pico network entity or a pico NE. The network entity 110 for a femto cell may be referred to as a femto network entity, a femto NE, or a home network entity. In Figure 1 In the example shown, NE 110a may be a macro network entity for macro cell 102a, NE 110b may be a pico network entity for pico cell 102b, and NE 110c may be a femto network entity for femto cell 102c. Network entity 110 may support one or more (eg, three) cells.

[0026] In some examples, cells may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network entity 110 (e.g., a mobile base station). In some examples, network entities 110 may interconnect with each other and / or with one or more other network entities 110 or network nodes (not shown) in wireless network 100 using any suitable transport network via various types of backhaul interfaces, such as direct physical connections or virtual networks.

[0027] The wireless network 100 may include one or more relay stations. A relay station is an entity capable of receiving transmissions of data from an upstream station (e.g., a network entity 110 or a UE 120) and transmitting transmissions of data to a downstream station (e.g., a UE 120 or a network entity 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, NE 110d (eg, a relay network entity) may communicate with NE 110a (eg, a macro network entity) and UE 120d to facilitate communications between NE 110a and UE 120d. A network entity 110 that relays communications may be referred to as a relay station, relay network entity, relay, or the like.

[0028] The wireless network 100 may be a heterogeneous network that includes different types of network entities 110, such as macro network entities, pico network entities, femto network entities, relay network entities, etc. These different types of network entities 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network entity may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network entity, a femto network entity, and a relay network entity may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0029] The network controller 130 may be coupled to or in communication with a set of network entities 110 and may provide coordination and control for the network entities 110. The network controller 130 may communicate with the network entities 110 via backhaul communication links. The network entities 110 may also communicate directly or indirectly with each other via wireless or wired backhaul communication links.

[0030] UE 120 may be dispersed throughout wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, and / or any other suitable device configured to communicate via a wireless medium.

[0031] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a network entity, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0032] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. In a given geographic area, each frequency may support a single RAT to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0033] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly (e.g., without using network entity 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols) and / or mesh networks. In such examples, UE 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network entity 110.

[0034] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0035] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0036] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0037] In some aspects, UE 120 may include communication manager 140. As described in more detail elsewhere herein, communication manager 140 may send a measurement report to a network entity 110 associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity 110 based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; and monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report is sent that triggers the second handover procedure, the second threshold amount being greater than the first threshold amount. Additionally or alternatively, communication manager 140 may perform one or more other operations described herein.

[0038] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0039] Figure 2 2 is a diagram illustrating an example 200 of a network entity 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network entity 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0040] At the network entity 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network entity 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a set of corresponding antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0041] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive downlink signals from the network entity 110 and / or other network entities 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a through 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0042] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network entity 110 via the communication unit 294.

[0043] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more groups of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, an antenna group, a group of antenna elements, and / or an antenna array may include one or more antenna elements (in a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components).

[0044] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network entity 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, with reference to Figures 5 to 8 ) or any aspect of any of the methods described herein.

[0045] At the network entity 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network entity 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network entity 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network entity 110 may include a modulator and a demodulator. In some examples, the network entity 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 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 execute the instructions described herein (e.g., reference 2 Figures 5 to 8 ) or any aspect of any of the methods described herein.

[0046] The controller / processor 240 of the network entity 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component of the network entity 110 may perform one or more techniques associated with handover measurements associated with multiple threshold amounts, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network entity 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 7 700 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network entity 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of network entity 110 and / or UE 120, may cause one or more processors, UE 120, and / or network entity 110 to perform or direct, for example Figure 7 The process 700 and / or operations of other processes described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0047] In some aspects, the UE 120 includes means for sending a measurement report to a network entity 110 associated with a first cell triggering a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity 110 based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; and / or means for monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, the second measurement report is sent to trigger the second handover procedure, the second threshold amount being greater than the first threshold amount. Means for the UE 120 to perform operations described herein may include, for example, one or more of the communications manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0048] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality 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 the controller / processor 280.

[0049] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0050] Figure 3 3 is a diagram illustrating an example 300 of an O-RAN architecture according to the present disclosure. Figure 3 As shown, the O-RAN architecture may include a CU 310 that communicates with a core network 320 via a backhaul link. In addition, the CU 310 may communicate with one or more DUs 330 via corresponding midhaul links. The DUs 330 may each communicate with one or more RUs 340 via corresponding fronthaul links, and the RUs 340 may each communicate with a corresponding UE 120 via a radio frequency (RF) access link. The DU 330 and the RU 340 may also be referred to as O-RAN DU (O-DU) 330 and O-RAN RU (O-RU) 340, respectively.

[0051] In some aspects, the DU 330 and the RU 340 may be implemented according to a functional split architecture in which the functionality of a base station (e.g., an eNB or gNB) is provided by the DU 330 and one or more RUs 340 that communicate via a fronthaul link. Thus, as described herein, the network entity 110 may include a DU 330 and one or more RUs 340 that may be co-located or geographically distributed. In some aspects, the DU 330 and the associated RU 340 may communicate via the fronthaul link to exchange real-time control plane information via a lower layer split (LLS) control plane (LLS-C) interface, non-real-time management information via an LLS management plane (LLS-M) interface, and / or user plane information via an LLS user plane (LLS-U) interface.

[0052] Thus, the DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. For example, in some aspects, the DU 330 may host a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (e.g., forward error correction (FEC) encoding and decoding, scrambling, and / or modulation and demodulation) based at least in part on the lower layer functional split. Higher layer control functions (such as packet data convergence protocol (PDCP), radio resource control (RRC), and / or service data adaptation protocol (SDAP)) may be hosted by the CU 310. Based at least in part on the lower layer functional split, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions and low PHY layer functions (e.g., fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, and / or physical random access channel (PRACH) extraction and filtering). Thus, in the O-RAN architecture, the RU 340 handles all over-the-air (OTA) communications with the UE 120, and the real-time and non-real-time aspects of the control plane and user plane communications with the RU 340 are controlled by the corresponding DU 330, which enables the DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture.

[0053] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0054] Figure 4 is a diagram illustrating an example 400 of a make-before-break handover according to the present disclosure.

[0055] like Figure 4As shown, a make-before-break (MBB) handover procedure may involve a UE 405, a source network entity 410, a target network entity 415, a user plane function (UPF) device 420, and an access and mobility management function (AMF) device 425. The UE 405 may correspond to the UE 120 described elsewhere herein. The source network entity 410 and / or the target network entity 415 may correspond to the network entity 110 described elsewhere herein. The UPF device 420 and / or the AMF device 425 may correspond to the network controller 130 described elsewhere herein. The UE 405 and the source network entity 410 may be connected (e.g., may have an RRC connection) via a serving cell or a source cell, and the UE 405 may experience a handover to the target network entity 415 via a target cell. The UPF device 420 and / or the AMF device 425 may be located within a core network. The source network entity 410 and the target network entity 415 may be in communication with the core network for mobility support and user plane functions. The MBB handover procedure may include an enhanced MBB (eMBB) handover procedure.

[0056] As shown, the MBB handover procedure may include a handover preparation phase 430, a handover execution phase 435, and a handover completion phase 440. During the handover preparation phase 430, the UE 405 may report measurements that prepare the source network entity 410 and / or the target network entity 415 for the handover and trigger the execution of the handover. During the handover execution phase 435, the UE 405 may perform the handover by performing a random access procedure with the target network entity 415 and establishing an RRC connection with the target network entity 415. During the handover completion phase 440, the source network entity 410 may forward stored communications associated with the UE 405 to the target network entity 415, and the UE 405 may be released from the connection with the source network entity 410.

[0057] As indicated by reference numeral 445, UE 405 may perform one or more measurements and may send a measurement report to source network entity 410 based at least in part on performing the one or more measurements (e.g., serving cell measurements and / or neighboring cell measurements). The measurement report may indicate, for example, an RSRP parameter, an RSRQ parameter, an RSSI parameter, a signal-to-noise ratio (SNR) parameter, and / or a signal-to-interference-plus-noise ratio (SINR) parameter (e.g., for a serving cell and / or one or more neighboring cells). Source network entity 410 may use the measurement report to determine whether to trigger a handover to target network entity 415. For example, if one or more measurements satisfy a condition, source network entity 410 may trigger a handover of UE 405 to target network entity 415.

[0058] For example, in the case where the target cell (sometimes referred to as the neighboring cell) becomes better offset than the source cell (sometimes referred to as the serving cell and / or the special cell (SpCell)), a measurement report may trigger a handover procedure. In some cases, the target cell becoming better offset than the source cell is referred to as an A3 event or an A3 measurement event. In other words, the A3 measurement event provides a handover trigger mechanism based on relative measurement results, such as providing a handover trigger mechanism when the RSRP measurement, RSRQ measurement, RSSI measurement, SNR measurement, SINR measurement, or similar measurement of a neighboring cell is stronger than the RSRP, RSRQ, RSSI, SNR, SINR, or similar measurement of the serving cell. In some aspects, the A3 measurement event may be triggered according to the condition Mn + Ofn + Ocn – Hys > Mp + Ofp + Ocp + Off (sometimes referred to as the trigger condition or the entry condition, and which may alternatively be expressed as Mn + Ofn + Ocn > Mp + Ofp + Ocp + Off + Hys), and the handover to the neighboring cell may be cancelled according to the condition Mn + Ofn + Ocn + Hys < Mp + Ofp + Ocp + Off (sometimes referred to as the cancellation condition or the exit condition). For these conditions, Mn is the measurement result of the neighboring cell (e.g., RSRP, RSRQ, RSSI, SNR, SINR, etc.), Ofn is the measurement object specific offset of the reference signal of the neighboring cell (sometimes referred to as offsetMO and defined within measObjectNR corresponding to the frequency of the neighboring cell), Ocn is the cell specific offset of the neighboring cell (sometimes referred to as cellIndividualOffset and defined within measObjectNR corresponding to the frequency of the neighboring cell, and set to zero if not configured for the neighboring cell), Mp is the measurement result of the serving cell (e.g., RSRP, RSRQ, RSSI, SNR, SINR, etc.), Ofp is the measurement object specific offset of the SpCell (sometimes referred to as offsetMO and defined within measObjectNR corresponding to the serving cell), Ocp is the cell specific offset of the serving cell (sometimes referred to as cellIndividualOffset and defined within measObjectNR corresponding to the serving cell, and set to zero if not configured for the neighboring cell), Off is the offset parameter associated with the trigger event (sometimes referred to as a3-Offset and defined within reportConfigNR), and Hys is the hysteresis parameter associated with the trigger event (sometimes referred to as hysteresis and defined within reportConfigNR).

[0059] As indicated by reference numeral 450, source network entity 410 and target network entity 415 may communicate with each other to prepare for the handover of UE 405. As part of the handover preparation, source network entity 410 may send a handover request to target network entity 415 to instruct target network entity 415 to prepare for the handover. Source network entity 410 may communicate RRC context information associated with UE 405 and / or configuration information associated with UE 405 to target network entity 415. Target network entity 415 may prepare for the handover by reserving resources for UE 405. After reserving resources, target network entity 415 may send an acknowledgment (ACK) to source network entity 410 in response to the handover request.

[0060] As indicated by reference numeral 455, source network entity 410 may send an RRC reconfiguration message to UE 405. The RRC reconfiguration message may include a handover command instructing UE 405 to perform a handover procedure from source network entity 410 to target network entity 415. The handover command may include information associated with target network entity 415, such as a random access channel (RACH) preamble assignment for accessing target network entity 415. Receipt of the RRC reconfiguration message including the handover command by UE 405 may trigger the start of the handover execution phase 435.

[0061] As indicated by reference numeral 460, during the handover execution phase 435 of the MBB handover, the UE 405 may perform the handover by performing a random access procedure with the target network entity 415 (e.g., including synchronization with the target network entity 415) while continuing to communicate with the source network entity 410. For example, when the UE 405 performs the random access procedure with the target network entity 415, the UE 405 may send uplink data, uplink control information, or an uplink reference signal (e.g., a sounding reference signal) to the source network entity 410, and / or may receive downlink data, downlink control information, and / or downlink reference signal from the source network entity 410.

[0062] As indicated by reference numeral 465, after successfully establishing a connection with the target network entity 415 (e.g., via a random access procedure), the UE may send an RRC reconfiguration complete message to the target network entity 415. Receipt of the RRC reconfiguration message by the target network entity 415 may trigger the start of the handover completion phase 440.

[0063] As indicated by reference numeral 470, source network entity 410 and target network entity 415 may communicate with each other to prepare for releasing a connection between source network entity 410 and UE 405. In some aspects, target network entity 415 may determine that the connection between source network entity 410 and UE 405 is to be released, such as after receiving an RRC reconfiguration message from UE 405. In this case, target network entity 415 may send a handover connection setup complete message to source network entity 410. The handover connection setup complete message may cause source network entity 410 to stop sending data to UE 405 and / or stop receiving data from UE 405. Additionally or alternatively, the handover connection setup complete message may cause source network entity 410 to forward communications associated with UE 405 to target network entity 415 and / or notify target network entity 415 of the status of one or more communications with UE 405. For example, source network entity 410 may forward buffered downlink communications (e.g., downlink data) for UE 405 and / or uplink communications (e.g., uplink data) received from UE 405 to target network entity 415. Additionally or alternatively, source network entity 410 may notify target network entity 415 about a PDCP state associated with UE 405 and / or a sequence number to be used for downlink communications with UE 405.

[0064] As indicated by reference numeral 475, target network entity 415 may send an RRC reconfiguration message to UE 405 to instruct UE 405 to release the connection with source network entity 410. Upon receiving the instruction to release the connection with source network entity 410, UE 405 may stop communicating with source network entity 410. For example, UE 405 may refrain from sending uplink communications to source network entity 410 and / or may refrain from monitoring downlink communications from source network entity 410.

[0065] As indicated by reference numeral 480, the UE may send an RRC reconfiguration complete message to the target network entity 415 to indicate that the connection between the source network entity 410 and the UE 405 is being released or has been released.

[0066] As shown by reference numeral 485, the target network entity 415, the UPF device 420 and / or the AMF device 425 may communicate to switch the user plane path of the UE 405 from the source network entity 410 to the target network entity 415. Before switching the user plane path, downlink communications for the UE 405 may be routed to the source network entity 410 through the core network. After the user plane path is switched, downlink communications for the UE 405 may be routed to the target network entity 415 through the core network. Upon completion of the switching of the user plane path, the AMF device 425 may send an end marker message to the source network entity 410 to signal the completion of the user plane path switching. As shown by reference numeral 490, the target network entity 415 and the source network entity 410 may communicate to release the source network entity 410.

[0067] As part of the MBB handover procedure, UE 405 may maintain simultaneous connections with source network entity 410 and target network entity 415 during time period 495. Time period 495 may start at the beginning of handover execution phase 435 (e.g., upon receiving a handover command from source network entity 410 by UE 405) when UE 405 performs a random access procedure with target network entity 415. Time period 495 may end when the connection between UE 405 and source network entity 410 is released (e.g., upon receiving an instruction from target network entity 415 to release source network entity 410 by UE 405). By maintaining simultaneous connections with source network entity 410 and target network entity 415, the handover procedure may be performed with zero or minimal interruption in communication, thereby reducing latency.

[0068] In some cases, UE 405 may be configured with a relatively small offset (e.g., Off and / or a3-Offset) and / or hysteresis (e.g., Hys and / or hysteresis), which may cause UE 405 to easily trigger a handover procedure and thus switch back and forth between cells. The repeated switching of UE 405 back and forth between cells is sometimes referred to as a "ping-pong" handover. For example, with respect to the A3 measurement event described above in conjunction with reference numeral 445, one or more of Off or Hys may be relatively small, so that a ping-pong handover is easily triggered when the target cell and the source cell become slightly better offset than each other. Ping-pong handover may result in an increase in the signaling overhead for performing a handover procedure between two or more cells, resulting in an increase in latency and a decrease in throughput.

[0069] In some cases, to avoid ping-pong handovers or similar cell handover behaviors, the UE 405 may be configured with a larger offset (e.g., a larger Off and / or a3-Offset) and / or a larger hysteresis parameter (e.g., Hys and / or hysteresis), thereby making it more difficult to trigger a handover procedure (and thus making it more difficult to trigger a ping-pong handover between two cells). However, this approach may inhibit the handover procedure when a cell switch is required. For example, in a case where a neighboring cell is better than a serving cell and there is little fluctuation in the RSRP or similar parameters of the cell, a handover may be prevented even if the UE 405 is expected to switch to a neighboring cell. Alternatively, in the case of a fast-moving UE 405 (such as a UE 405 on a high-speed train, etc.), configuring the UE 405 to have too large an offset (e.g., Off and / or a3-Offset) and / or too large a hysteresis parameter (e.g., Hys and / or hysteresis) may result in measurement report delays from the UE 405 to the source NE 410 (as described in conjunction with reference numeral 445), which may result in communication interruption and even radio link failure.

[0070] Some techniques and devices described herein implement conventional measurement reporting that uses relatively small offset and / or hysteresis parameters to trigger handover procedures while preventing ping-pong handovers or otherwise switching back and forth between neighboring cells. In some aspects, a UE (e.g., UE 405) may impose a penalty or bias on measurements associated with a previous serving cell to avoid frequent handovers. In some aspects, imposing a penalty or bias on measurements associated with a previous serving cell may advantageously prevent the UE and / or one or more network entities from switching back to the previous serving cell within a certain period of time, while allowing the UE to trigger a handover to another neighboring cell (e.g., non-previous serving cell) during the period of time if the configuration A3 measurement event conditions are met. Therefore, ping-pong handovers may be reduced or eliminated, thereby reducing the signaling overhead for performing handover procedures and achieving latency reduction and throughput increase, while at the same time, because the UE is not prevented from switching to other neighboring cells (when it is beneficial to do so), coverage may be beneficially increased, thereby making more efficient use of network resources.

[0071] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0072] Figure 5 is a diagram illustrating an example 500 of a block diagram associated with performing handover measurements associated with a plurality of threshold quantities in accordance with the present disclosure.

[0073] According to some aspects, combined Figure 4The described UE 405 or similar UE (e.g., UE 120) may perform measurements and send regular measurement reports (such as the measurement reports described in conjunction with reference numeral 445) to trigger a handover procedure (such as an A3 measurement event) for some neighboring cells, while applying a bias to other neighboring cells (such as a previous serving cell) in order to discourage cell selection for certain cells and thereby avoid ping-pong handovers. In such aspects, the UE 405 may apply a bias to neighboring cells, such as a previous serving cell, when evaluating an A3 event by replacing a network configured offset parameter (e.g., Off and / or a3-offset) and / or a hysteresis parameter (e.g., Hys and / or hysteresis) with a larger parameter, so that at least for a certain period of time after the handover, the UE 405 may only send an A3 measurement report associated with the previous serving cell if the previous serving cell becomes significantly better offset than the current serving cell.

[0074] More specifically, as indicated by reference numeral 505, a network entity (e.g., source network entity 410) may determine whether a handover procedure should be performed. For example, UE 405 may determine whether an A3 measurement event, etc. has occurred, which may prompt UE 405 to send a measurement report to a network entity (e.g., source network entity 410) to trigger a handover procedure. In the event that an A3 measurement event, etc. has not occurred (as indicated by the "No" in the box indicated by reference numeral 505), UE 405 may continue to perform certain measurements (e.g., RSRP, SNR, etc.) until the handover procedure is triggered. Once the handover procedure conditions are met (e.g., once an A3 measurement event has occurred, as indicated by the "Yes" at the box indicated by reference numeral 505), UE 405 may send a measurement report to source network entity 410 indicating that the event has occurred, and a handover procedure may be performed, such as in conjunction with Figure 4 The described procedure or a substantially similar handover procedure.

[0075] As shown by reference numeral 510, after the handover, the UE 405 may store the previous serving cell identifier (ID) or similar information in a database or other storage location. For example, the UE 405 may record the previous serving cell ID (e.g., the ID of the source network entity 410) in an internal database maintained in a memory (e.g., memory 282) of the UE 405. Additionally, and as shown by reference numeral 515, the UE 405 may start a timer. For example, in some aspects, the UE 405 may start a 30-second timer, while in some other aspects, the UE 405 may start a timer that is longer or shorter than 30 seconds. In some aspects, the timer may be associated with a time period during which the UE 405 may apply a bias to measurements associated with the previous serving cell (in this example, the source cell) so as to make it more difficult for the previous serving cell to be triggered for handover purposes, thereby avoiding ping-pong handovers, etc. That is, in the example where the timer duration is 30 seconds, UE 405 may bias measurements associated with the previous serving cell for 30 seconds, making it more difficult for the previous serving cell to meet handover conditions (eg, A3 measurement event) before 30 seconds have passed.

[0076] More specifically, as indicated by reference numeral 520, when performing handover-based measurements (such as RSRP, RSRQ, RSSI, SNR, SINR, etc.), or when performing handover-related tasks in other ways, the UE 405 may determine whether a timer has expired. In the event that the timer has expired (shown as "yes" at the box indicated by reference numeral 520), the UE 405 may perform a handover evaluation (e.g., A3 measurement event evaluation) without applying a bias or penalty to the previous serving cell, as indicated by reference numeral 525. In other words, once the timer has expired, the UE 405 may perform a handover evaluation in combination with the previous serving cell. Figure 4 A3 measurement is performed in a substantially similar manner as described. However, if the timer has not expired (shown as "No" at the box indicated by reference numeral 520), the UE 405 may perform A3 measurement by applying a bias to the previous serving cell in order to avoid ping-pong handover, etc.

[0077] More specifically, as shown by reference numerals 530 and 535, UE 405 may determine two measurement parameters. The first parameter indicated as P in the box shown by reference numeral 530 may be offset from network configuration A3 (e.g., in combination with Figure 4 Off or a3-Offset) and network configuration hysteresis parameters (e.g., combined Figure 4The second parameter indicated as Q in the box shown by reference numeral 535 may be a candidate value (sometimes referred to as an expected value) that replaces P in the measurement comparison in order to hinder the selection of an associated cell (e.g., the previous serving cell in this example). That is, Q may be a parameter associated with a minimum difference between measurements of a neighboring cell and a current serving cell that must be achieved before an A3 measurement event is satisfied and / or before the UE 405 will send an A3 measurement report to the current serving cell to trigger a handover procedure.

[0078] As indicated by the dashed arrow leading from the box indicated by reference numeral 510 to the box indicated by reference numeral 535, the Q parameter may be based at least in part on whether the cell being measured is a previous serving cell, which in some aspects may be determined by the previous serving cell ID stored in a database. For example, a bias may be applied to multiple cells during a time period (e.g., 30 seconds) after handover, but the bias applied to the previous serving cell is greater than the bias applied to other neighboring cells. As indicated by reference numeral 540, in some aspects, the Q parameter may additionally or alternatively be based at least in part on measurements associated with the current serving cell. For example, in the event that the measurement exceeds a measurement threshold indicating a relatively strong current serving cell, a larger Q parameter may be used to discourage additional cell switching during the time period, and in the event that the measurement does not exceed a measurement threshold indicating a relatively weak current serving cell, a smaller Q parameter may be used to permit easier cell switching.

[0079] More specifically, in some aspects, the measurement of the current serving cell may be an RSRP measurement, the measurement threshold may be a threshold RSRP measurement (such as a value expressed in decibel-milliwatts (dBm)), and the candidate Q parameter may be associated with the difference between the neighboring cell RSRP measurement and the serving cell RSRP measurement (the difference may be expressed in decibels (dB)). In such an example, in the case where the previous serving cell is being measured, and in the case where the RSRP measurement associated with the current serving cell is less than the threshold value (e.g., less than -105dBm), the Q parameter associated with the previous serving cell may be a first value (e.g., 4dB). Alternatively, in the case where the RSRP measurement associated with the current serving cell is greater than the threshold value (e.g., greater than -105dBm), the Q parameter associated with the previous serving cell may be a second value greater than the first value (e.g., 6dB). For other neighboring cells (e.g., cells that are not the previous serving cell), similar Q parameters may be used, or smaller Q parameters may be used. Returning to the example described above, the Q parameter associated with the neighboring cell that is not the previous serving cell may be less than the Q parameter associated with the previous serving cell. For example, the Q parameter associated with the neighboring cell that is not the previous serving cell may be 2 dB, while the Q parameter associated with the previous serving cell is one of 4 dB or 6 dB, as described above.

[0080] In some aspects, when performing an A3 measurement event evaluation (e.g., when determining whether to transmit a measurement report, as described in conjunction with reference numeral 445), the UE 405 may determine whether the Q parameter or the P parameter is greater, and may compare the measurements of the two cells based at least in part on the greater of the two parameters. More specifically, as shown by reference numeral 545, the UE 405 may determine whether a configuration parameter (e.g., the P parameter) is less than an expected value (e.g., the Q parameter). In the event that the P parameter is not less than the Q parameter of the given cell (shown as "No" at the box indicated by reference numeral 545), the UE 405 may use the configuration P parameter to perform an A3 measurement event evaluation (e.g., the A3 measurement event evaluation may be performed without applying any bias to the cell being evaluated, as shown at reference numeral 525). However, in the event that the P parameter is less than the Q parameter of a given cell (shown as "yes" at the box indicated by reference numeral 545), the UE 405 may use the Q parameter to perform an A3 measurement event evaluation (e.g., the A3 measurement event evaluation may be performed by applying a bias to the cell being evaluated, as shown at reference numeral 550). In such a case, the value of the applied bias may be considered to be the QP.

[0081] At this point, based on the above Figure 4The described A3 condition is used to evaluate the handover using the larger of the P parameter (which may be associated with the sum of the A3 offset plus the hysteresis parameter) or the Q parameter. For example, where the P parameter is larger, the UE 405 may send a measurement report that triggers the handover procedure when Mn>Mp+P, where P is equal to the sum of a3-offset and hysteresis (for ease of discussion, any impact of other configured offsets (if any, such as Ofn, Ocn, Ofp, Ocp, etc.) is ignored). On the other hand, where the Q parameter is larger, the UE 405 may send a measurement report that triggers the handover procedure when Mn>Mp+Q (which in turn applies a bias equal to QP to the A3 measurement event evaluation). In other words, when Q is greater than P (shown as "Yes" at the box indicated by reference numeral 545), when performing the A3 measurement event evaluation, the sum of a3-offset and hysteresis may be replaced by Q, thereby making it more difficult to trigger a handover to the associated neighboring cell. In combination Figure 6 Various aspects of applying bias to neighboring cells are described in more detail.

[0082] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 Different than described.

[0083] Figure 6 6 is a diagram of an example 600 associated with handover measurements associated with multiple threshold quantities according to the present disclosure. Figure 6 As shown, UE 605 (e.g., UE 405) can communicate with a first network entity 610 (e.g., source network entity 410) and a second network entity 615 (e.g., target network entity 415). In some aspects, UE 605, first network entity 610, and second network entity 615 can be part of a wireless network (e.g., wireless network 100). UE 605 and first network entity 610 can be in communication with each other. Figure 6 The operations shown have previously established a wireless connection. In some aspects, the first network entity 610 may be associated with the first cell, and the second network entity 615 may be associated with the second cell. In addition, as shown, the UE 605 may be within the coverage of the first cell and the second cell, and thus may perform measurements of reference signals received within each cell, etc., for the purpose of A3 measurement event evaluation or other handover-related determinations, such as in conjunction with Figure 4 and Figure 5 described.

[0084] As indicated by reference numeral 620, UE 605 may receive configuration information from first network entity 610. In some aspects, UE 605 may receive configuration information via one or more of RRC signaling, one or more MAC control elements (MAC-CEs), and / or downlink control information (DCI), etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by UE 605 (e.g., known to UE 605 and / or previously indicated by first network entity 610 or other network entities), explicit configuration information for UE 605 to configure UE 605, etc.

[0085] In some aspects, the configuration information may include configuration of parameters associated with the handover measurement event and / or the handover procedure, such as a first threshold amount associated with the handover measurement event and / or the handover procedure. For example, the configuration information may include configuration of one or more offsets or related parameters associated with the A3 measurement event. In some aspects, the first threshold amount may be based at least in part on an A3 offset parameter (e.g., Off and / or a3-Offset defined in reportConfigNR) and / or a hysteresis parameter (e.g., Hys and / or hysteresis defined in reportConfigNR). For example, in some aspects, the first threshold amount may be associated with the sum of the offset parameter and the hysteresis parameter. The configuration information may include additional offsets or similar parameters, such as a measurement object specific offset (e.g., offsetMO defined in measObjectNR corresponding to the frequency of the first cell and / or the second cell), a cell specific offset (cellIndividualOffset defined in measObjectNR corresponding to the frequency of the first cell and / or the second cell), or a similar offset. The UE 605 may configure itself based at least in part on the configuration information. In some aspects, the UE 605 may be configured to perform one or more operations described herein based at least in part on the configuration information.

[0086] As indicated by reference numeral 625, the UE 605 may send a measurement report to a first network entity 610 associated with the first cell, the measurement report triggering a first handover procedure from the first cell to the second cell. For example, the first threshold amount may be associated with an A3 measurement event (e.g., the target cell becomes better offset than the source cell), and thus the measurement report may be sent to the first network entity 610 based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by the first threshold amount. More specifically, where P is used to represent the first threshold amount (which in some aspects may be equal to a3-Offset+hysteresis, as described), the measurement report may be sent to the first network entity 610 based at least in part on a second measurement (e.g., Mn) being greater than a first measurement (e.g., Mp) by the first threshold amount (e.g., Mn>Mp+P), as described in conjunction with Figure 5 In some aspects, at least one of the first measurement or the second measurement is associated with one of an RSRP measurement, an RSRQ measurement, an RSSI measurement, an SNR measurement, or an SINR measurement.

[0087] As indicated by reference numeral 630, the UE 605 may monitor measurements (e.g., RSRP, RSRQ, RSSI, SNR, SINR, or similar measurements) to trigger additional handover procedures, such as from the second cell back to the first cell and / or from the second cell to another neighboring cell (e.g., a third cell). For example, the UE 605 may monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell. In some aspects, during at least a certain period of time after the first handover procedure, a second measurement report is sent (e.g., from the UE 605 to the second network entity 615), thereby triggering the second handover procedure if the first measurement is greater than the second measurement by a second threshold amount, the second threshold amount being greater than the first threshold amount. For example, the second threshold amount may correspond to an offset threshold amount, such as in combination with Figure 5 In this regard, in some aspects, a second threshold amount may be applied during at least the time period after the first handover procedure based at least in part on the first cell being a previous serving cell of the UE 605. More specifically, the second threshold amount may be applied so as to discourage handover back to the previous serving cell during the time period (e.g., 30 seconds), as described. That is, when the first cell is the previous serving cell, a bias may be applied to the first cell (the bias may be equal to the second threshold minus the first threshold, or QP, as described), as described in conjunction with Figure 5 In some aspects, monitoring the first measurement and the second measurement to trigger another handover procedure may include monitoring whether the first measurement is greater than the second measurement by a second threshold amount within the time period, and then after the time period has elapsed, monitoring whether the first measurement is greater than the second measurement by a first threshold amount.

[0088] Additionally or alternatively, in some aspects, the second threshold amount can be equal to the maximum of the configuration threshold amount (e.g., P) and the bias threshold amount (e.g., Q), such as in combination with Figure 5 In aspects where the second threshold amount is equal to the configured threshold amount (e.g., P), the second threshold amount may be associated with a sum of an offset parameter (e.g., Off and / or a3-Offset) and a hysteresis parameter (e.g., Hys and / or hysteresis), as described. Also, in some aspects, the bias threshold amount may be based at least in part on the second measurement. That is, as described in conjunction with Figure 5 As described in the boxes indicated by reference numerals 535 and 540 in FIG. 1 , in some aspects, when the measurement of the current serving cell (e.g., the second measurement) indicates that the current serving cell is a strong cell, the offset threshold amount can be greater. Therefore, in some aspects, based at least in part on the second measurement being less than the threshold measurement value (e.g., −105 dBm, as combined with Figure 5 The offset threshold value may be equal to the first offset value (eg, 4 dB, as described in conjunction with Figure 5 ), while in some other aspects, based at least in part on the second measurement being greater than the threshold measurement value (e.g., -105 dBm), the offset threshold amount may be equal to the second offset value (e.g., 6 dB, as in combination with Figure 5 ), the second bias value is greater than the first bias value.

[0089] In some aspects, the UE 605 may monitor measurements associated with neighboring cells other than the first cell (e.g., the previous serving cell). For example, in conjunction with the monitoring step shown by reference numeral 630, the UE 605 may monitor a third measurement associated with a third cell to trigger a third handover procedure from the second cell to the third cell. The third cell may be a neighboring cell that is not the previous serving cell, and thus may be associated with an offset value and / or threshold different from the first cell that is the previous serving cell. For example, during the time period, in the case where the third measurement is greater than the second measurement by a first threshold amount (e.g., P) but not by a second threshold amount (e.g., Q), the third handover procedure may be triggered.

[0090] Alternatively, similar to the previous serving cell (e.g., the first cell), the third serving cell may be associated with a bias threshold amount, but the bias threshold amount may be less than the bias threshold amount applied to the first cell. More specifically, in some aspects, during at least the time period after the first handover procedure, the third handover procedure is triggered when the third measurement is greater than the second measurement by a third threshold amount, wherein the third threshold amount is greater than the first threshold amount and less than the second threshold amount. In some aspects, the third threshold amount may be associated with the sum of an offset parameter associated with the third cell (e.g., Off and / or a3-Offset) and a hysteresis parameter associated with the third cell (e.g., Hys and / or hysteresis). Additionally or alternatively, the third threshold amount may be a maximum value between the configuration threshold amount (e.g., P) and the bias threshold amount (e.g., a Q parameter associated with the third cell).

[0091] As indicated by reference numeral 635, in some aspects, the UE 605 may send a measurement report to the second network entity 615 to trigger a handover procedure from the second cell to another cell (e.g., back to the first cell, the third cell, or another neighboring cell). For example, the UE 605 may send a second measurement report to the second network entity 615 associated with the second cell to trigger a second handover procedure from the second cell to the first cell based at least in part on the first measurement value being greater than the second measurement value by a second threshold amount. In other words, in aspects where the previous serving cell (in this example, the first cell) becomes better offset than the current serving cell (in this example, the second cell) by a significant margin (e.g., a second threshold amount or offset amount), the UE 605 may send an A3 measurement report to the previous cell to trigger the handover procedure. In this regard, the UE 605 will not preclude measurement reports associated with the previous serving cell, but may need to overcome a larger offset and / or threshold before transmitting the measurement report associated with the previous serving cell, thereby reducing latency, increasing throughput, and using network resources more efficiently, as described.

[0092] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 Different than described.

[0093] Figure 7 is a diagram illustrating an example process 700 performed, for example, by a UE according to the present disclosure. Example process 700 is an example of a UE (eg, UE 605) performing operations associated with handover measurements associated with a plurality of threshold quantities.

[0094] like Figure 7As shown, in some aspects, process 700 may include sending a measurement report to a network entity associated with a first cell (e.g., first network entity 610) triggering a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount (block 710). For example, a UE (e.g., using Figure 8 The communication manager 808 and / or the sending component 804 depicted in the figure may send a measurement report to a network entity associated with the first cell that triggers a first handover procedure from the first cell to the second cell, wherein the measurement report is sent to the network entity at least in part based on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount, as described above.

[0095] like Figure 7 As further shown, in some aspects, process 700 may include monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, sending a second measurement report triggering the second handover procedure, the second threshold amount being greater than the first threshold amount (block 720). For example, a UE (e.g., using Figure 8 The communication manager 808 and / or the measurement component 810 depicted in the figure may monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report triggering the second handover procedure is sent, and the second threshold amount is greater than the first threshold amount, as described above.

[0096] 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.

[0097] In a first aspect, the second threshold amount is applied during at least the time period after the first handover procedure based at least in part on the first cell being a previous serving cell for the UE.

[0098] In a second aspect, either alone or in combination with the first aspect, process 700 includes sending a second measurement report to another network entity (e.g., second network entity 615) associated with the second cell that triggers the second handover procedure from the second cell to the first cell based at least in part on the first measurement being greater than the second measurement by the second threshold amount.

[0099] In a third aspect, alone or in combination with one or more of the first and second aspects, the first threshold amount is associated with an A3 measurement event.

[0100] In a fourth aspect, alone or in combination with one or more of the first to third aspects, at least one of the first threshold amount or the second threshold amount is associated with a sum of an offset parameter and a hysteresis parameter.

[0101] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, at least one of the first measurement or the second measurement is associated with one of a reference signal received power measurement or a signal-to-noise ratio measurement.

[0102] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the second threshold amount is a maximum value between the configuration threshold amount and the bias threshold amount.

[0103] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the offset threshold amount is based at least in part on the second measurement.

[0104] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the bias threshold amount is equal to the first bias value, at least in part based on the second measurement being less than the threshold measurement value, and the bias threshold amount is equal to the second bias value, at least in part based on the second measurement being greater than the threshold measurement value, and the second bias value is greater than the first bias value.

[0105] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, monitoring the first measurement and the second measurement to trigger another handover procedure includes: monitoring whether the first measurement is greater than the second measurement by the second threshold amount within the time period, and then after the time period has passed, monitoring whether the first measurement is greater than the second measurement by the first threshold amount.

[0106] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, process 700 includes monitoring a third measurement associated with a third cell to trigger a third handover procedure from the second cell to the third cell.

[0107] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the third handover procedure is triggered if the third measurement is greater than the second measurement by the first threshold amount.

[0108] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the third handover procedure is triggered when the third measurement is greater than the second measurement by a third threshold amount during at least the time period after the first handover procedure, and the third threshold amount is greater than the first threshold amount and less than the second threshold amount.

[0109] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the third threshold amount is a maximum value between the configuration threshold amount and the bias threshold amount.

[0110] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the third threshold amount is associated with the sum of an offset parameter associated with the third cell and a hysteresis parameter associated with the third cell.

[0111] although Figure 7 An example block diagram of process 700 is 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 of the blocks in the process 700 may be performed in parallel.

[0112] Figure 8 800 is a diagram of an example apparatus 800 for wireless communication according to the present disclosure. Apparatus 800 may be a UE (e.g., UE 605), or a UE may include apparatus 800. In some aspects, apparatus 800 includes a receiving component 802 and a transmitting component 804 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 800 may communicate with another apparatus 806 (such as a UE, a network entity, or another wireless communication device) using receiving component 802 and transmitting component 804. As further shown, apparatus 800 may include a communication manager 808 (e.g., communication manager 140). Communication manager 808 may include measurement component 810, etc.

[0113] In some aspects, the apparatus 800 may be configured to perform the Figures 5 and 6 Additionally or alternatively, the apparatus 800 may be configured to perform one or more processes described herein, such as Figure 7 The process 700. In some aspects, Figure 8 The device 800 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE 120 described herein. Additionally or alternatively, Figure 8 One or more of the components shown may be combined with Figure 2Additionally or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0114] The receiving component 802 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 806. The receiving component 802 may provide the received communications to one or more other components of the device 800. In some aspects, the receiving component 802 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 800. In some aspects, the receiving component 802 may include combining Figure 2 The UE 120 is described as having one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.

[0115] The transmitting component 804 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 806. In some aspects, one or more other components of the device 800 may generate communications and may provide the generated communications to the transmitting component 804 for transmission to the device 806. In some aspects, the transmitting component 804 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 806. In some aspects, the transmitting component 804 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof of the depicted UE 120. In some aspects, the transmit component 804 can be co-located with the receive component 802 in a transceiver.

[0116] The sending component 804 and / or the measuring component 810 may send a measurement report to a network entity associated with the first cell that triggers a first handover procedure from the first cell to the second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount. The measuring component 810 may monitor the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report is sent that triggers the second handover procedure, and the second threshold amount is greater than the first threshold amount.

[0117] Transmitting component 804 and / or measuring component 810 can transmit, to another network entity associated with the second cell, a second measurement report triggering a second handover procedure from the second cell to the first cell based at least in part on the first measurement being greater than the second measurement by a second threshold amount.

[0118] The measuring component 810 can monitor a third measurement associated with the third cell to trigger a third handover procedure from the second cell to the third cell.

[0119] Figure 8 The number and arrangement of components shown are provided as examples. In practice, there may be Figure 8 The components shown may include additional components, fewer components, different components, or components arranged in a different manner. Figure 8 Two or more components shown may be implemented in a single component, or Figure 8 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 8 The illustrated set (one or more) of components may be described as being executable by Figure 8 Another group of components shown performs one or more functions.

[0120] The following provides an overview of some aspects of the disclosure:

[0121] Aspect 1: A method for performing wireless communication by a UE, comprising: sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity at least partially based on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; and monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report triggering the second handover procedure is sent, and the second threshold amount is greater than the first threshold amount.

[0122] Aspect 2: The method according to aspect 1, wherein the second threshold amount is applied during at least the time period after the first handover procedure based at least in part on the first cell being a previous serving cell of the UE.

[0123] Aspect 3: The method according to any one of Aspects 1 to 2 also includes: sending the second measurement report triggering the second handover procedure from the second cell to the first cell to another network entity associated with the second cell based at least in part on the first measurement being greater than the second measurement by the second threshold amount.

[0124] Aspect 4: The method according to any one of aspects 1 to 3, wherein the first threshold amount is associated with an A3 measurement event.

[0125] Aspect 5: The method according to any one of aspects 1 to 4, wherein at least one of the first threshold amount or the second threshold amount is associated with a sum of an offset parameter and a hysteresis parameter.

[0126] Aspect 6: The method according to any one of aspects 1 to 5, wherein at least one of the first measurement or the second measurement is associated with one of a reference signal received power measurement or a signal-to-noise ratio measurement.

[0127] Aspect 7: The method according to any one of aspects 1 to 6, wherein the second threshold amount is a maximum value between the configuration threshold amount and the bias threshold amount.

[0128] Aspect 8: The method of aspect 7, wherein the bias threshold amount is based at least in part on the second measurement.

[0129] Aspect 9: A method according to Aspect 8, wherein the bias threshold amount is equal to a first bias value at least partially based on the second measurement being less than a threshold measurement value, and wherein the bias threshold amount is equal to a second bias value at least partially based on the second measurement being greater than the threshold measurement value, and the second bias value is greater than the first bias value.

[0130] Aspect 10: A method according to any one of Aspects 1 to 9, wherein monitoring the first measurement and the second measurement to trigger another handover procedure includes: monitoring whether the first measurement is larger than the second measurement by the second threshold amount within the time period, and then after the time period has passed, monitoring whether the first measurement is larger than the second measurement by the first threshold amount.

[0131] Aspect 11: The method according to any one of aspects 1 to 10, further comprising: monitoring a third measurement associated with a third cell to trigger a third handover procedure from the second cell to the third cell.

[0132] Aspect 12: The method according to aspect 11, wherein the third handover procedure is triggered if the third measurement is greater than the second measurement by the first threshold amount.

[0133] Aspect 13: A method according to any one of Aspects 11 to 12, wherein during at least the time period after the first handover procedure, the third handover procedure is triggered when the third measurement is greater than the second measurement by a third threshold amount, wherein the third threshold amount is greater than the first threshold amount and less than the second threshold amount.

[0134] Aspect 14: The method according to aspect 13, wherein the third threshold amount is a maximum value between the configuration threshold amount and the bias threshold amount.

[0135] Aspect 15: The method according to any one of aspects 13 to 14, wherein the third threshold amount is associated with the sum of an offset parameter associated with the third cell and a hysteresis parameter associated with the third cell.

[0136] Aspect 16: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 15.

[0137] Aspect 17: A device for wireless communication, comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 15.

[0138] Aspect 18: An apparatus for wireless communication, comprising at least one means for performing the method according to one or more of aspects 1 to 15.

[0139] Aspect 19: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 15.

[0140] Aspect 20: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 15.

[0141] 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 may be made in light of the above disclosure or may be acquired from practice of these aspects.

[0142] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to a specific software code herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0143] 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.

[0144] Although the specific combination of features is described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (which includes a single member). 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, and any combination with multiple identical elements (for example, 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).

[0145] Any element, action or instruction used herein should not be interpreted as critical or necessary unless explicitly stated. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "group" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If you only want to refer to an item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "having" A elements can also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. An apparatus for wireless communication at a user equipment (UE), comprising: Memory; as well as one or more processors coupled to the memory and configured to: sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; as well as monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, sending a second measurement report triggering the second handover procedure, The second threshold amount is greater than the first threshold amount.

2. The apparatus of claim 1, wherein the second threshold amount is applied based at least in part on the first cell being a previous serving cell for the UE during at least the time period after the first handover procedure.

3. The apparatus of claim 1 , wherein the one or more processors are further configured to send, to another network entity associated with the second cell, the second measurement report that triggers the second handover procedure from the second cell to the first cell based at least in part on the first measurement being greater than the second measurement by the second threshold amount. The apparatus of claim 1 , wherein the first threshold amount is associated with an A3 measurement event. 5 . The device of claim 1 , wherein at least one of the first threshold amount or the second threshold amount is associated with a sum of an offset parameter and a hysteresis parameter.

6. The apparatus of claim 1, wherein at least one of the first measurement or the second measurement is associated with one of a reference signal received power measurement or a signal-to-noise ratio measurement. The apparatus of claim 1 , wherein the second threshold amount is a maximum value between a configuration threshold amount and a bias threshold amount.

8. The apparatus of claim 7, wherein the bias threshold amount is based at least in part on the second measurement.

9. The apparatus of claim 8, wherein the offset threshold amount is equal to a first offset value based at least in part on the second measurement being less than a threshold measurement value, and wherein, Based at least in part on the second measurement being greater than the threshold measurement value, the offset threshold amount is equal to a second offset value, the second offset value being greater than the first offset value.

10. The apparatus of claim 1 , wherein, to monitor the first measurement and the second measurement to trigger another handover procedure, the one or more processors are configured to monitor whether the first measurement is greater than the second measurement by the second threshold amount within the time period, and then monitor whether the first measurement is greater than the second measurement by the first threshold amount after the time period has passed.

11. The apparatus of claim 1, wherein the one or more processors are further configured to monitor third measurements associated with a third cell to trigger a third handover procedure from the second cell to the third cell.

12. The apparatus of claim 11, wherein the third handover procedure is triggered if the third measurement is greater than the second measurement by the first threshold amount.

13. The apparatus of claim 11, wherein during at least the time period after the first handover procedure, the third handover procedure is triggered if the third measurement is greater than the second measurement by a third threshold amount, wherein the third threshold amount is greater than the first threshold amount and less than the second threshold amount. The apparatus of claim 13 , wherein the third threshold amount is a maximum value between a configuration threshold amount and a bias threshold amount.

15. The apparatus of claim 13, wherein the third threshold amount is associated with a sum of an offset parameter associated with the third cell and a hysteresis parameter associated with the third cell.

16. A method of performing wireless communication by a user equipment (UE), comprising: sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; as well as The first measurement and the second measurement are monitored to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report triggering the second handover procedure is sent, and the second threshold amount is greater than the first threshold amount.

17. The method of claim 16, wherein the second threshold amount is imposed based at least in part on the first cell being a previous serving cell for the UE during at least the time period after the first handover procedure.

18. The method according to claim 16, further comprising: Based at least in part on the first measurement being greater than the second measurement by the second threshold amount, sending the second measurement report to another network entity associated with the second cell that triggers the second handover procedure from the second cell to the first cell. The method of claim 16 , wherein the second threshold amount is a maximum value between a configuration threshold amount and a bias threshold amount.

20. The method of claim 19, wherein the offset threshold amount is based at least in part on the second measurement.

21. The method of claim 16, wherein monitoring the first measurement and the second measurement to trigger another handover procedure comprises: Monitoring whether the first measurement is greater than the second measurement by the second threshold amount within the time period, and then monitoring whether the first measurement is greater than the second measurement by the first threshold amount after the time period has elapsed.

22. The method of claim 16, further comprising: A third measurement associated with a third cell is monitored to trigger a third handover procedure from the second cell to the third cell.

23. The method of claim 22, wherein the third handover procedure is triggered if the third measurement is greater than the second measurement by the first threshold amount.

24. The method of claim 22, wherein during at least the time period after the first handover procedure, the third handover procedure is triggered if the third measurement is greater than the second measurement by a third threshold amount, wherein the third threshold amount is greater than the first threshold amount and less than the second threshold amount.

25. The method of claim 24, wherein the third threshold amount is a maximum value between a configuration threshold amount and a bias threshold amount.

26. A non-transitory computer readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; as well as The first measurement and the second measurement are monitored to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, a second measurement report triggering the second handover procedure is sent, and the second threshold amount is greater than the first threshold amount.

27. The non-transitory computer-readable medium of claim 26, wherein the second threshold amount is applied based at least in part on the first cell being a previous serving cell for the UE during at least the time period after the first handover procedure.

28. A non-transitory computer-readable medium according to claim 26, wherein the one or more instructions further cause the UE to send the second measurement report to another network entity associated with the second cell to trigger the second handover procedure from the second cell to the first cell based at least in part on the first measurement being greater than the second measurement by the second threshold amount.

29. An apparatus for wireless communication, comprising: means for sending a measurement report to a network entity associated with a first cell that triggers a first handover procedure from the first cell to a second cell, wherein the measurement report is sent to the network entity based at least in part on a second measurement associated with the second cell being greater than a first measurement associated with the first cell by a first threshold amount; as well as means for monitoring the first measurement and the second measurement to trigger a second handover procedure from the second cell to the first cell, wherein during at least a certain period of time after the first handover procedure, if the first measurement is greater than the second measurement by a second threshold amount, then sending a second measurement report triggering the second handover procedure, the second threshold amount being greater than the first threshold amount.

30. The apparatus of claim 29, wherein the second threshold amount is applied based at least in part on the first cell being a previous serving cell for the apparatus during at least the time period after the first handover procedure.

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