Priority-based independent band and carrier aggregation band usage

Abstract

Certain aspects of the present disclosure provide techniques for priority-based independent band and carrier aggregation band usage. An example method, which may be performed by a user equipment (UE), includes maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and combinations of frequency bands supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; and taking one or more actions based on one or more measured parameters of the frequency band or the combination of frequency bands and at least one of the HPL and the LPL.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of and priority to U.S. Patent Application No. 17 / 658,976, filed on April 12, 2022, which is incorporated herein by reference in its entirety. Background Art Technical Field

[0003] Aspects of the present disclosure relate to wireless communications, and more particularly to techniques for priority-based independent frequency band and carrier aggregation frequency band usage.

[0004] Related technologies

[0005] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts or other similar types of services. These wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available wireless communication system resources with those users.

[0006] Although wireless communication systems have made tremendous technical progress over the years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Therefore, there is a continued desire to improve the technical performance of wireless communication systems, including, for example: improving the speed and data carrying capacity of communications, improving the efficiency of using shared communication media, reducing the power used by transmitters and receivers when performing communications, improving the reliability of wireless communications, avoiding redundant transmission and / or reception and related processing, improving the coverage area of ​​wireless communications, increasing the number and types of devices that can access wireless communication systems, increasing the ability of different types of devices to communicate with each other, increasing the number and types of wireless communication media available for use, etc. Therefore, there is a need to further improve wireless communication systems to overcome the above-mentioned technical challenges and other challenges. Summary of the invention

[0007] One aspect provides a method for wireless communication by a user equipment (UE). The method generally includes: maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; and taking one or more actions based on one or more measurement parameters of the frequency band or the frequency band combination and at least one of the HPL and the LPL.

[0008] Other aspects provide: an apparatus operable to, configured to, or otherwise adapted to perform the aforementioned method and those described elsewhere herein; a non-transitory computer-readable medium comprising instructions that, when executed by a processor of the apparatus, cause the apparatus to perform the aforementioned method and those described elsewhere herein; a computer program product embodied on a computer-readable storage medium, the computer-readable storage medium comprising code for performing the aforementioned method and those described elsewhere herein; and an apparatus comprising means for performing the aforementioned method and those described elsewhere herein. By way of example, an apparatus may include a processing system, a device having a processing system, or a processing system cooperating through one or more networks.

[0009] For purposes of illustration, the following description and drawings set forth certain features. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings depict certain features of the aspects described herein and should not be considered to limit the scope of the disclosure.

[0011] Figure 1 An example wireless communication network is depicted.

[0012] Figure 2 An example disaggregated base station architecture is depicted.

[0013] Figure 3 Aspects of an example base station and example user equipment are depicted.

[0014] Figure 4A , Figure 4B , Figure 4C and Figure 4D Various example aspects of data structures for a wireless communication network are described.

[0015] Figure 5 An example radio frequency front end for a user equipment is depicted.

[0016] Figure 6 A process flow for communicating in a network between user equipment and a network entity is depicted.

[0017] Figure 7 Example algorithms are described that user equipment may use to perform wireless communications.

[0018] Figure 8 A method for wireless communication is described.

[0019] Fig. 9 Aspects of an example communications device are depicted. DETAILED DESCRIPTION

[0020] Various aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable media for a user equipment (UE) to maintain a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, and for the UE to make band dwell decisions and report frequency-related measurements based on whether the frequency band is in the HPL or the LPL.

[0021] For multiple subscriber identity modules (MSIM), UEs may operate in dual radio dual SIM dual standby (DR-DSDS) mode and dual SIM dual active (DSDA) mode, but many such UEs tune away some RF resources from the connected SIM (e.g., the SIM involved in a call) to monitor paging for the other SIM or allow the other SIM to enter connected mode. Each tune away of resources may have a dual effect: the SIM in the call is not operating in the call for a period of time and performance is degraded because the network reduces the allocation when the UE tunes away and then increases the allocation to the UE after the UE tunes back to the call. In some cases, especially for lower cost chipset designs, original equipment manufacturers (OEMs) may design these lower cost chipsets with limited RFFE in order to reduce the cost of these chipsets. In this case, tune away may be the only option for UEs that employ such lower cost chipsets to support all MSIM features for supporting two subscribers simultaneously. Even for SSIM UEs, certain CA band combinations give sub-optimal performance due to the RFFE architecture or antenna performance of the UE. Such CA band combinations are usually known when the device is designed. If a UE utilizes a carrier aggregation (CA) band combination such that the UE's RFFE can simultaneously support a call with a connected SIM and listen to paging of another SIM, the UE can avoid tune-away of RFFE resources. Thus, such a UE taking actions to cause the network (e.g., a network entity such as a BS) to serve calls and transmit paging on such a combination may result in the UE having superior throughput on the call and missing fewer pages.

[0022] In various aspects of the present disclosure, a UE (e.g., an SSIM UE or an MSIM UE) maintains two or more groups of independent (SA) bands and / or carrier aggregation (CA) band combinations in two or more lists, which may include a high priority list (HPL) and a low priority list (LPL). The UE attempts to prioritize the bands and / or band combinations (also referred to herein as packages) included in the HPL in the measurement report, so that when a handover command is transmitted or a call is established on the CA combination, the network (e.g., a network entity) selects the band or package in the HPL of the UE, thereby enabling the UE to obtain better throughput (TPUT) and / or paging reception performance. The UE also prioritizes the bands included in the HPL during the initial residency process. Once the UE resides on a SIM, the UE may update the HPL and / or LPL for the UE to start signal acquisition by another SIM. In addition, when residing on a cell in idle mode, the UE may preferentially reselect to the bands and packages included in the HPL. The UE may prioritize the bands and packages included in the HPL by deleting non-HPL bands and packages from the measurement objects (MOs) received from the network.

[0023] Advantages of the techniques described herein may include improved throughput of a call. Any tune-away of an MSIM UE may degrade the performance of the UE because the tune-away may have a dual impact, including potentially losing packets (for any or all of the UE's multiple SIMs) and potentially causing the network to reduce the service rate to the UE (e.g., transmit and receive data rates), which may reduce the throughput of the call while the network increases the service rate to the UE to reach peak levels again. In addition, known packages (e.g., frequency band combinations that are known to degrade the performance of the UE and / or cause the UE to tune away) may still be sub-optimal in performance despite appropriate mitigation due to mitigation methods such as slotting and / or elimination that cause the UE to lose portions of the spectrum of one or more frequency bands. In addition, for UEs that are nominally capable of DSDA operation, enabling the UE to prioritize frequency bands and packages in the UE's HPL may reduce the chances of the UE tuning away and may enable the UE to participate in DSDA operation by preventing the UE from being configured to use certain packages that interfere with the UE's participation in DSDA operation.

[0024] Introduction to wireless communication networks

[0025] The techniques and methods described herein can be used in various wireless communication networks. Although various aspects may be described herein using terms commonly associated with 3G, 4G and / or 5G wireless technologies, various aspects of the present disclosure may also be applicable to other communication systems and standards not explicitly mentioned herein.

[0026] Figure 1An example of a wireless communication network 100 is depicted in which various aspects described herein may be implemented.

[0027] In general, the wireless communication network 100 includes various network entities (alternatively, network elements or network nodes). A network entity is typically a communication device and / or a communication function performed by a communication device (e.g., user equipment (UE), base station (BS), component of a BS, server, etc.). For example, various functions of a network and various devices associated with and interacting with the network may be considered network entities. In addition, the wireless communication network 100 includes ground aspects, such as ground-based network entities (e.g., BS 102), and non-ground aspects, such as satellites 140 and aircraft 145, which may include airborne network entities (e.g., one or more BSs) capable of communicating with other network elements (e.g., ground BSs) and user equipment.

[0028] In the depicted example, the wireless communication network 100 includes a BS 102, a UE 104, and one or more core networks (such as an evolved packet core (EPC) 160 and a 5G core (5GC) network 190) that interoperate to provide communication services over various communication links (including wired and wireless links).

[0029] Figure 1 Various example UEs 104 are depicted, which may more generally include: a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player, a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, an Internet of Things (IoT) device, an Always-On (AON) device, an edge processing device, or other similar devices. UE 104 may also be more generally referred to as a mobile device, a wireless device, a wireless communication device, a station, a mobile station, a subscriber station, a mobile subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a remote device, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, and others.

[0030] BS 102 wirelessly communicates with (e.g., sends signals to or receives signals from) UE 104 via communication link 120. Communication link 120 between BS 102 and UE 104 may include uplink (UL) (also referred to as a reverse link) transmissions from UE 104 to BS 102 and / or downlink (DL) (also referred to as a forward link) transmissions from BS 102 to UE 104. In various aspects, communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity.

[0031] BS 102 may generally include: Node B, enhanced Node B (eNB), next generation enhanced Node B (ng-eNB), next generation Node B (gNB or gNodeB), access point, base transceiver station, radio base station, radio transceiver, transceiver function, transmission and reception point, and / or other. Each of BS 102 may provide communication coverage for a corresponding geographic coverage area 110, which may sometimes be referred to as a cell, and may overlap in some cases (e.g., small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of a macro cell). For example, a BS may provide communication coverage for a macro cell (covering a relatively large geographic area), a pico cell (covering a relatively small geographic area, such as a stadium), a femto cell (relatively small geographic area (e.g., a home)), and / or other types of cells.

[0032] Although BS102 is depicted as a single communication device in various aspects, BS102 can be implemented in various configurations. For example, one or more components of the base station may be decomposed, including a central unit (CU), one or more distributed units (DU), one or more radio units (RU), a near real-time (near RT) RAN intelligent controller (RIC) or a non-real-time (non-RT) RIC, to name a few examples. In another example, various aspects of the base station may be virtualized. More generally, a base station (e.g., BS102) may include components located at a single physical location or components located at various physical locations. In an example in which the base station includes components located at various physical locations, the various components may each perform a function so that the various components together implement functionality similar to that of a base station located at a single physical location. In some aspects, a base station including components located at various physical locations may be referred to as a decomposed radio access network architecture (such as an open RAN (O-RAN) or virtualized RAN (VRAN) architecture). Figure 2 An example decomposed base station architecture is depicted and described.

[0033] Different BSs 102 within the wireless communication network 100 may also be configured to support different radio access technologies (such as 3G, 4G, and / or 5G). For example, a BS 102 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). A BS 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN)) may interface with the 5GC 190 via a second backhaul link 184. The BSs 102 may communicate with each other directly or indirectly (e.g., via the EPC 160 or the 5GC 190) over a third backhaul link 134 (e.g., an X2 interface), which may be wired or wireless.

[0034] The wireless communication network 100 may subdivide the electromagnetic spectrum into various categories, frequency bands, channels, or other characteristics. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency may also be referred to as a carrier, subcarrier, channel, tone, or subband. For example, 3GPP currently defines frequency range 1 (FR1) as including 600 MHz-6 GHz, which is often (interchangeably) referred to as "below 6 GHz". Similarly, 3GPP currently defines frequency range 2 (FR2) as including 26 GHz-41 GHz, which is sometimes (interchangeably) referred to as "millimeter wave" ("mmW" or "mmWave"). A base station (e.g., a mmWave base station such as BS180) configured to communicate using mmWave / near mmWave radio bands may utilize beamforming (e.g., 182) with a UE (e.g., 104) to improve path loss and range.

[0035] The communication link 120 between the BS 102 and, for example, the UE 104 may be through one or more carriers, which may have different bandwidths (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, and / or other MHz) and may be aggregated in various aspects. The carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL).

[0036] Communications using higher frequency bands may have higher path loss and shorter range than communications at lower frequencies. Figure 1180) can utilize beamforming 182 with UE 104 to improve path loss and range. For example, BS 180 and UE 104 can each include multiple antennas, such as antenna elements, antenna panels and / or antenna arrays, to facilitate beamforming. In some cases, BS 180 can send beamformed signals to UE 104 in one or more transmit directions 182'. UE 104 can receive beamformed signals from base station 180 in one or more receive directions 182". UE 104 can also send beamformed signals to base station 180 in one or more transmit directions 182". BS 180 can also receive beamformed signals from UE 104 in one or more receive directions 182'. Base station 180 and UE 104 can then perform beam training to determine the best receive direction and transmit direction for each of BS 180 and UE 104. It is worth noting that the transmit direction and receive direction of BS 180 can be the same or different. Similarly, the transmit direction and receive direction of UE 104 may be the same or different.

[0037] The wireless communication network 100 further includes a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, the 2.4 GHz and / or 5 GHz unlicensed spectrum.

[0038] Certain UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), a physical sidelink control channel (PSCCH), and / or a physical sidelink feedback channel (PSFCH).

[0039] The EPC 160 may include various functional components, including: a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and / or a packet data network (PDN) gateway 172, such as in the depicted example. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. In general, the MME 162 provides bearer and connection management.

[0040] Generally speaking, user Internet Protocol (IP) packets are delivered through the Serving Gateway 166, which itself is connected to the PDN Gateway 172. The PDN Gateway 172 provides UE IP address allocation and other functions. The PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176, which may include, for example, the Internet, an Intranet, an IP Multimedia Subsystem (IMS), a Packet Switched (PS) streaming media service, and / or other IP services.

[0041] The BM-SC 170 may provide functionality for MBMS user service configuration and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and / or may be used to schedule MBMS delivery. The MBMS Gateway 168 may be used to distribute MBMS services to BSs 102 belonging to a multicast broadcast single frequency network (MBSFN) area broadcasting a specific service, and / or may be responsible for session management (start / stop) and for collecting eMBMS related charging information.

[0042] 5GC 190 may include various functional components, including: access and mobility management function (AMF) 192, other AMFs 193, session management function (SMF) 194, and user plane function (UPF) 195. AMF 192 may communicate with unified data management (UDM) 196.

[0043] AMF 192 is a control node that handles signaling between UE 104 and 5GC 190. AMF 192 provides, for example, Quality of Service (QoS) flow and session management.

[0044] Internet Protocol (IP) packets are delivered through UPF 195, which is connected to IP Services 197 and provides IP address allocation for UEs and other functions for 5GC 190. IP Services 197 may include, for example, the Internet, Intranet, IMS, PS streaming services, and / or other IP services.

[0045] In various aspects, a network entity or network node may be implemented as a converged base station, a decomposed base station, a component of a base station, an integrated access and backhaul (IAB) node, a relay node, a sidelink node, to name a few examples.

[0046] Figure 2An example disaggregated base station 200 architecture is depicted. The disaggregated base station 200 architecture may include one or more central units (CUs) 210 that may communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 225 via an E2 link, or a non-real-time (non-RT) RIC 215 associated with a service management and orchestration (SMO) framework 205, or both. The CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DU 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RU 240 may communicate with respective UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 240.

[0047] Each of the units (e.g., CU 210, DU 230, RU 240, and near-RT RIC 225, non-RT RIC 215, and SMO framework 205) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to the communication interface of the unit may be configured to communicate with one or more of the other units via a transmission medium. For example, the units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally or alternatively, the unit may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as a radio frequency (RF) transceiver) configured to receive or send signals, or both, to one or more of the other units on a wireless transmission medium.

[0048] In some aspects, CU 210 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by CU 210. CU 210 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP)), control plane functionality (e.g., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 210 may be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 210 may be implemented to communicate with DU 230 for network control and signaling.

[0049] DU 230 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 240. In some aspects, DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to a functional split such as those defined by the 3rd Generation Partnership Project (3GPP). In some aspects, DU 230 may further host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 230 or with control functions hosted by CU 210.

[0050] The lower layer functionality may be implemented by one or more RUs 240. In some deployments, a RU 240 controlled by a DU 230 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional partitioning (such as a lower layer functional partitioning). In such an architecture, the RU 240 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 240 may be controlled by the corresponding DU 230. In some scenarios, this configuration may enable the implementation of the DU 230 and the CU 210 in a cloud-based RAN architecture (such as a vRAN architecture).

[0051] The SMO framework 205 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 205 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 210, DU 230, RU 240, and near-RT RIC 225. In some specific implementations, the SMO framework 205 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 211) via the O1 interface. Additionally, in some specific implementations, the SMO framework 205 may communicate directly with one or more RUs 240 via the O1 interface. The SMO framework 205 may also include a non-RT RIC 215 configured to support the functionality of the SMO framework 205 .

[0052] The non-RT RIC 215 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 225. The non-RT RIC 215 may be coupled to or in communication with the near-RT RIC 225 (such as via an A1 interface). The near-RT RIC 225 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 210, one or more DUs 230, or both, and the O-eNB with the near-RT RIC 225.

[0053] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 225, the non-RT RIC 215 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 225 and may be received from a non-network data source or from a network function at the SMO framework 205 or the non-RT RIC 215. In some examples, the non-RT RIC 215 or the near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 215 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 205 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0054] Figure 3 Aspects of an example BS 102 and UE 104 are depicted.

[0055] In general, BS 102 includes various processors (e.g., 320, 330, 338, and 340), antennas 334a-334t (collectively 334), transceivers 332a-332t (collectively 332) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., data source 312) and wireless reception of data (e.g., data sink 339). For example, BS 102 can transmit and receive data between BS 102 and UE 104. BS 102 includes a controller / processor 340 that can be configured to implement various functions described herein related to wireless communication.

[0056] In general, the UE 104 includes various processors (e.g., 358, 364, 366, and 380), antennas 352a-352r (collectively 352), transceivers 354a-354r (collectively 354) including modulators and demodulators, and other aspects that enable wireless transmission of data (e.g., retrieved from a data source 362) and wireless reception of data (e.g., provided to a data sink 360). The UE 104 includes a controller / processor 380 that can be configured to implement various functions described herein related to wireless communications.

[0057] Regarding example downlink transmissions, BS 102 includes a transmit processor 320 that can receive data from a data source 312 and control information from a controller / processor 340. The control information can be for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical HARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GC PDCCH), and / or others. In some examples, the data can be for a physical downlink shared channel (PDSCH).

[0058] The transmit processor 320 may process (e.g., encode and symbol map) data and control information to obtain data symbols and control symbols, respectively. The transmit processor 320 may also generate reference symbols (such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH demodulation reference signal (DMRS), and a channel state information reference signal (CSI-RS)).

[0059] The transmit (TX) multiple-input multiple-output (MIMO) processor 330 may perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, and / or reference symbols, where applicable, and may provide an output symbol stream to a modulator (MOD) in a transceiver 332a-332t. Each modulator in the transceiver 332a-332t may process a corresponding output symbol stream to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from the modulators in the transceivers 332a-332t may be transmitted via antennas 334a-334t, respectively.

[0060] To receive downlink transmissions, UE 104 includes antennas 352a-352r that can receive downlink signals from BS 102 and can provide received signals to demodulators (DEMODs) in transceivers 354a-354r, respectively. Each demodulator in transceivers 354a-354r can condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator can further process the input samples to obtain received symbols.

[0061] A MIMO detector 356 may obtain received symbols from all demodulators in transceivers 354a-354r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 358 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 104 to a data sink 360, and provide decoded control information to a controller / processor 380.

[0062] With respect to example uplink transmissions, the UE 104 also includes a transmit processor 364 that may receive and process data from a data source 362 (e.g., for a PUSCH) and control information from a controller / processor 380 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 364 may also generate reference symbols for reference signals (e.g., a sounding reference signal (SRS)). The symbols from the transmit processor 364 may be pre-decoded by a TX MIMO processor 366, if applicable, further processed by a modulator in the transceivers 354a-354r (e.g., for SC-FDM), and transmitted to the BS 102.

[0063] At BS 102, uplink signals from UE 104 may be received by antennas 334 a-334 t, processed by demodulators in transceivers 332 a-332 t, detected by MIMO detector 336 if applicable, and further processed by receive processor 338 to obtain decoded data and control information transmitted by UE 104. Receive processor 338 may provide decoded data to data sink 339 and decoded control information to controller / processor 340.

[0064] Memory 342 and memory 382 may store data and program codes for BS 102 and UE 104, respectively.

[0065] The scheduler 344 may schedule UEs for data transmission on the downlink and / or uplink.

[0066] In various aspects, BS 102 may be described as sending and receiving various types of data associated with the methods described herein. In these contexts, "sending" may refer to various mechanisms for outputting data, such as outputting data from a data source 312, a scheduler 344, a memory 342, a transmit processor 320, a controller / processor 340, a TX MIMO processor 330, a transceiver 332a-332t, an antenna 334a-334t, and / or other aspects described herein. Similarly, "receiving" may refer to various mechanisms for obtaining data, such as obtaining data from an antenna 334a-334t, a transceiver 332a-332t, a RX MIMO detector 336, a controller / processor 340, a receive processor 338, a scheduler 344, a memory 342, and / or other aspects described herein.

[0067] In various aspects, the UE 104 may also be described as sending and receiving various types of data associated with the methods described herein. In these contexts, "sending" may refer to various mechanisms for outputting data, such as outputting data from a data source 362, a memory 382, ​​a transmit processor 364, a controller / processor 380, a TX MIMO processor 366, a transceiver 354a-354t, an antenna 352a-352t, and / or other aspects described herein. Similarly, "receiving" may refer to various mechanisms for obtaining data, such as obtaining data from an antenna 352a-352t, a transceiver 354a-354t, a RX MIMO detector 356, a controller / processor 380, a receive processor 358, a memory 382, ​​and / or other aspects described herein.

[0068] In some aspects, the processor may be configured to perform various operations (such as those associated with the methods described herein) and send (output) data to or receive (obtain) data from another interface configured to send or receive data, respectively.

[0069] Figure 4A , Figure 4B , Figure 4C and Figure 4D Describes a method for use in a wireless communication network such as Figure 1 Various aspects of the data structure of the wireless communication network 100).

[0070] Specifically, Figure 4A is a diagram 400 illustrating an example of a first subframe within a 5G (e.g., 5G NR) frame structure, Figure 4B is a diagram 430 illustrating an example of a DL channel within a 5G subframe, Figure 4C is a diagram 450 illustrating an example of a second subframe within a 5G frame structure, and Figure 4D FIG480 is a diagram illustrating an example of UL channels within a 5G subframe.

[0071] Wireless communication networks can utilize Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) on both the uplink and downlink. Such systems can also support half-duplex operation using Time Division Duplex (TDD). OFDM and Single Carrier Frequency Division Multiplexing (SC-FDM) can be used to maximize the system bandwidth (e.g., Figure 4B and Figure 4D The modulation symbols may be transmitted in the frequency domain using OFDM and / or in the time domain using SC-FDM.

[0072] The wireless communication frame structure may be frequency division duplex (FDD), where for a particular set of subcarriers, subframes within the set of subcarriers are dedicated to either DL or UL. The wireless communication frame structure may also be time division duplex (TDD), where for a particular set of subcarriers, subframes within the set of subcarriers are dedicated to both DL and UL.

[0073] exist Figure 4A and Figure 4CIn the wireless communication frame structure, TDD is used, where D is DL, U is UL, and X is used flexibly between DL / UL. The UE can be configured with a time slot format (dynamically configured by DL control information (DCI) or semi-statically / statically configured by radio resource control (RRC) signaling) through the received time slot format indicator (SFI). In the depicted example, the 10ms frame is divided into 10 equally sized 1ms subframes. Each subframe may include one or more time slots. In some examples, each time slot may include 7 or 14 symbols, depending on the time slot format. The subframe may also include micro-time slots, which typically have fewer symbols than the entire time slot. Other wireless communication technologies may have different frame structures and / or different channels.

[0074] In certain aspects, the number of time slots within a subframe is based on the time slot configuration and the parameter set. For example, for time slot configuration 0, different parameter sets (μ) 0 to 5 allow for 1, 2, 4, 8, 16, and 32 time slots per subframe, respectively. For time slot configuration 1, different parameter sets 0 to 2 allow for 2, 4, and 8 time slots per subframe, respectively. Thus, for time slot configuration 0 and parameter set μ, there are 14 symbols / time slot and 2μ time slots / subframe. The subcarrier spacing and symbol length / duration are a function of the parameter set. The subcarrier spacing may be equal to 2 μ × 15kHz, where μ is parameter set 0 to 5. Thus, parameter set μ=0 has a subcarrier spacing of 15kHz, while parameter set μ=5 has a subcarrier spacing of 480kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figure 4A , Figure 4B , Figure 4C and Figure 4D An example is provided for slot configuration 0 with 14 symbols per slot and parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.

[0075] like Figure 4A , Figure 4B , Figure 4C and Figure 4D As depicted in , a resource grid can be used to represent a frame structure. Each time slot includes a resource block (RB) (also called a physical RB (PRB)) extending, for example, 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0076] like Figure 4A As illustrated, some REs carry data for UEs (e.g. Figure 1 and Figure 3The RS may include a demodulation RS (DMRS) and / or a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and / or a phase tracking RS (PT-RS).

[0077] Figure 4B Examples of various DL channels within a subframe of a frame are illustrated.The Physical Downlink Control Channel (PDCCH) carries DCI within one or more Control Channel Elements (CCEs), each CCE comprising, for example, nine RE Groups (REGs), each REG comprising, for example, four consecutive REs in an OFDM symbol.

[0078] The primary synchronization signal (PSS) may be in symbol 2 of a particular subframe of a frame. The PSS is transmitted by a UE (e.g., Figure 1 and Figure 3 104) is used to determine subframe / symbol timing and physical layer identification.

[0079] A Secondary Synchronization Signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing.

[0080] Based on the physical layer identifier and the physical layer cell identifier group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DMRS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information (such as system information blocks (SIBs)) that is not sent via the PBCH, and / or paging messages.

[0081] like Figure 4CAs illustrated, some REs carry DMRS for channel estimation at the base station (indicated as R for a particular configuration, but other DMRS configurations are also possible). The UE may send DMRS for PUCCH and DMRS for PUSCH. The PUSCH DMRS may be sent, for example, in the first one or two symbols of the PUSCH. The PUCCH DMRS may be sent in different configurations depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used. UE 104 may send a sounding reference signal (SRS). The SRS may be sent, for example, in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the comb structures in the comb structure. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0082] Figure 4D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0083] Aspects related to priority-based independent and carrier aggregation band usage

[0084] In some cases, a UE may operate using multiple subscriber identity modules (SIMS). In such cases, the UE may preferably operate on certain standalone (SA) bands or carrier aggregation (CA) band combinations due to reasons such as the UE's radio frequency front end (RFFE) architecture having superior performance on these SA bands or carrier aggregation (CA) band combinations in MSIM and / or single SIM (SSIM) scenarios, the UE having better performance due to non-linear interference cancellation (NLIC), or the UE having better performance due to intermodulation distortion (IMD).

[0085] In some cases, the UE's RFFE may directly impact which frequency bands and frequency band combinations may be preferred for the UE's operation, as a particular antenna or signal path of the RFFE may result in superior performance for the UE taking into account multiple performance factors.

[0086] An MSIM UE may operate in a dual radio dual SIM dual standby (DR-DSDS) mode and a dual SIM dual active (DSDA) mode. DR-DSDS mode refers to a UE with two SIMs in standby mode (e.g., able to be paged, but not connected in a call). DSDA mode refers to a UE with two SIMs active simultaneously, e.g., the UE may send / receive calls to each of the SIMs simultaneously. Although DR-DSDS and DSDA modes allow UEs to operate using an MSIM, many such UEs may need to tune away some RF resources from a connected SIM (e.g., a SIM involved in a call) to monitor paging for another SIM or allow another SIM to enter connected mode. Tuning away of RF resources may reduce the data rate throughput of the call of the connected SIM because the call is disconnected when the RF resources are tuned away, and because the network will typically reduce the data rate of the call (e.g., by changing the transcoding rate used for transmission) after the RF resources are retuned and the call is reconnected.

[0087] Figure 5 A UE (eg, Figure 1 and Figure 3 1 and 10. The example RFFE 500 is an RFFE of a multiple subscriber identity module (MSIM) UE. The example RFFE 500 includes a software defined radio (SDR) 502, a mid-high band (MHB) power amplifier module (PAMid) 510 with an integrated duplexer, a first antenna 512 connected to the MHB PAMid, a low band (LB) PAMid 530, and a second antenna 532 connected to the LB PAMid 530. The example RFFE 500 includes a first transmit chain Tx0_GSM_MB for transmitting on the B1800 and N3 bands, a second transmit chain Tx0_MB for transmitting on the N1 band, and a third transmit chain Tx0_LB2 for transmitting on the N5 band. The example RFFE 500 also includes a first receive chain PRx2 for receiving on the B1800 and N3 bands, a second receive chain PRx4 for receiving on the N1 band, and a third receive chain PRx10 for receiving on the N5 band. In some cases, the UE may include a first SIM (SIM1, not shown) and a second SIM (SIM2, also not shown). In some cases, SIM1 may use a combination of bands N1 and N3 (e.g., using carrier aggregation) to operate in connected mode for calls, while SIM2 may be configured to listen for paging on the B1800 band when operating in standby or idle mode.

[0088] In some cases, when the UE is performing a call associated with SIM1 on the N1 band and the N3 band, the SDR 502 transmits data 522 for sending the call on the N3 band to the MHB PAMid 510. The SDR 502 may also transmit data 524 for sending the call on the N1 band to the MHB PAMid 510. In some cases, the N3 band associated with SIM1 and the B1800 band associated with SIM2 may partially overlap. In some cases, due to such overlap, SIM1 and SIM2 may share the use of some components of the RFFE 500, such as one or more transmit chains and / or one or more receive chains. In addition, due to the overlap between the N3 and B1800 bands and the shared use of components of the RFFE 500 by SIM1 and SIM2, the RFFE 500 may need to tune away from the N3 band during SIM1's call to periodically monitor for paging to SIM2 on the B1800 band. Such a tune-away may result in reduced throughput and performance for SIM1 calls because the tune-away may cause SIM1 to miss operating time and the network may reduce the data rate for SIM1 calls when RFFE 500 is retuned to the N3 band. More detailed examples of these tune-aways and their associated issues are provided below.

[0089] For example, as described above, the RFFE 500 of a UE (e.g., UE 104) may be associated with a first SIM (SIM1) and a second SIM (SIM2). In some cases, the UE may use CA to perform a call associated with SIM1 on the N1 and N3 band combination, while SIM2 is configured to listen for paging on the B1800 band when operating in standby or idle mode. In this case, the UE may use the Tx0_GSM_MB transmit chain and the PRx2 receive chain to perform data transmission and reception for a call associated with SIM1 on the N3 band. The UE may also use the PRx2 receive chain to monitor paging associated with SIM2 on the B1800 band. When a paging occasion (PO) for a network subscription associated with SIM2 occurs, the UE tunes the PRx2 receive chain away from the N3 band associated with the SIM1 call to the B1800 band, so that the UE can monitor paging associated with SIM2 on the B1800 band.

[0090] Since tune-away may reduce data throughput on SIM1 calls, the UE may have superior data throughput on SIM1 calls if the UE may avoid tune-away. For example, if the UE moves a SIM1 call from the N1 and N3 band combination to the N1 and N5 band combination (assuming both combinations are supported by the UE and the network), the SIM1 call will utilize the Tx0_MB transmit chain and the PRx4 receive chain for N1 band communications, and the SIM1 call will utilize the Tx0_LB2 transmit chain and the PRx10 receive chain for N5 band communications. Therefore, when the UE activates the PRx2 receive chain to monitor for paging associated with SIM2, the UE's RFFE 500 does not need to perform a tune-away associated with the SIM1 call because the SIM1 call uses a separate receive chain (e.g., PRx10), thereby avoiding a reduction in data throughput for the SIM1 call when monitoring for paging associated with SIM2.

[0091] However, in some cases, particularly for lower cost chipset designs, original equipment manufacturers (OEMs) may design these lower cost chipsets with limited RFFE in order to reduce the cost of these chipsets. In such cases, tune-away may be the only option for UEs employing such lower cost chipsets to support all MSIM features for supporting two subscribers simultaneously.

[0092] Furthermore, even for SSIM UEs, some CA band combinations give sub-optimal performance due to certain UE RFFE architectures or antenna performance. Such CA band combinations are usually known when the device is designed. Additionally, non-linear interference cancellation (NLIC) may affect which band combinations are preferred for the operation of the UE because, in the case of some CA band combinations, simultaneous transmission and reception creates potential interference between transmission and reception due to RF imperfections. Additionally, intermodulation distortion (IMD) may also affect which band combinations are preferred for the operation of the UE because the spectrum at the output of a non-linear device (e.g., an amplifier or mixer in the RFFE) may consist not only of the original signal, but may also contain the sum and difference of the input signals and their harmonics. Additionally, in some cases, some low-band (LB) band combinations (such as the B5 band and the N8 band combination) may have transmit signals in the transmit frequency leaking through the receive path of the UE even if the UE uses filters. Such combinations are known to give sub-optimal performance for at least some UEs.

[0093] In some cases, if the UE utilizes a CA band combination such that the UE's RFFE architecture can simultaneously support calls with a connected SIM and listen for paging of another SIM, the UE can avoid tuning away from RFFE resources. Therefore, having the network (e.g., a network entity such as a BS) use such a band combination to serve calls and transmit paging can result in the UE having excellent throughput on calls and missing fewer pages. In some cases, to help achieve this, various aspects of the present disclosure provide techniques for prioritizing the use of some bands and band combinations over other bands and band combinations. For example, such techniques may involve maintaining a high priority list (HPL) and a low priority list (LPL) of bands and band combinations supported by the UE, which can be used to select a band or band combination to reside on, perform calls, and report measurements to the network so that the network supports the bands and band combinations in the HPL when the network transmits handover (HO) and call activation commands to the UE.

[0094] Example Operations of Entities in a Communication Network

[0095] Figure 6 A process flow 600 is depicted for communication between a network entity (NE) 602 and a user equipment (UE) 604 in a network. In some aspects, the NE 602 may be a Figure 1 and Figure 3 An example of BS 102 is depicted and described. Similarly, UE 604 may be a BS 102 that is configured to communicate with a user. Figure 1 and Figure 3 1 and 10. However, in other aspects, UE 604 may be another type of wireless communication device and NE 602 may be another type of network entity or network node, such as those described herein. In various aspects of the present disclosure, UE 604 and NE 602 may communicate via a Uu interface, such as Figure 6 exemplified.

[0096] At 608, the UE 604 maintains two or more groups of independent (SA) bands and / or carrier aggregation (CA) band combinations in two or more lists, which may include a high priority list (HPL) and a low priority list (LPL). The HPL and the LPL may be based on one or more hardware (HW) components of the UE. In some cases, the bands and / or band combinations included in the HPL may be selected so that the UE avoids tuning away when active on those combinations, while the bands and / or band combinations in the LPL may include all other band combinations supported by the UE (i.e., band combinations in which the UE tunes away from one band to transmit or receive on another band). For example, the HPL may include band combinations so that for each combination, the RFFE of the UE 604 may not be required to tune away from one band in the combination to receive on another band in the combination, and the LPL may include other band combinations that the UE may receive, but for each combination, the RFFE of the UE 604 may be required to tune away from one frequency in the combination to receive on another frequency in the combination.

[0097] At 610 , the UE 604 optionally receives one or more of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a reference signal (RS) from the network entity 602 .

[0098] At 612, UE 604 optionally measures one or more parameters related to signal strength of at least one frequency band or frequency band combination in the HPL or LPL maintained by the UE at 608 (e.g., reference signal received power (RSRP) or signal-to-noise ratio (SNR) of the signal received by UE 604 at 610).

[0099] At 614, the UE takes one or more actions based on the one or more measurement parameters of the frequency band or frequency band combination and at least one of the HPL and the LPL.

[0100] In some cases, the UE 604 may include a first SIM and a second SIM. In some such cases, the UE may camp on a first frequency band or a first frequency band combination using the first SIM, and taking one or more actions at 614 may include: using the second SIM, camping on a second frequency band or a second frequency band combination selected from the HPL or LPL based on the first frequency band or the first frequency band combination camped on using the first SIM. That is, when selecting a frequency band or a frequency band combination to camp on using the second SIM, the UE selects from the HPL or the LPL and based on which frequency band or frequency band combination the first SIM camps on. In some such cases, the UE may also use the first frequency band or the first frequency band combination selected from the HPL or the LPL to perform a call associated with the second SIM. That is, when camping using the first SIM, the UE may use the frequency band or the frequency band combination on which the UE camps using the first SIM to perform a call associated with the second SIM. In some such cases, the UE may use the second frequency band or the second frequency band combination selected from the HPL or the LPL using carrier aggregation. That is, after camping on the first frequency band or the first frequency band combination through the first SIM, the UE may perform a call with the first SIM through carrier aggregation using a different frequency band or frequency band combination selected from HPL or LPL.

[0101] In some cases, taking one or more actions at 614 may include: the UE 604 reporting (e.g., in a measurement report transmitted by the UE 604 to the network entity 602 at 616) one or more measurement parameters of at least one of the frequency bands and / or frequency band combinations in the HPL while omitting one or more measurement parameters of the frequency bands or frequency band combinations in the LPL. By reporting the parameters of the frequency bands and / or frequency band combinations in the HPL while omitting the parameters of the frequency bands or frequency band combinations in the LPL, the UE may cause the network (e.g., the network entity 604) to configure the frequency bands and / or frequency band combinations from the HPL of the UE for handover (also referred to herein as handover) or carrier aggregation calls more frequently than the network configures the frequency bands and / or frequency band combinations from the LPL of the UE. By the network configuring the frequency bands and / or frequency band combinations from the HPL of the UE more frequently than configuring the frequency bands and / or frequency band combinations from the LPL of the UE, the UE may avoid tuning away from one frequency band to another. Avoiding tune-aways may enable the UE to achieve higher data throughput (TPUT) and / or better paging performance (e.g., higher success rate in receiving pages). Avoiding tune-aways may enable the UE to achieve better paging performance because an RF chain that is tuning away to receive pages may sometimes miss pages due to the time required for the RF chain to stabilize on the target frequency.

[0102] In some cases, when the HPL is not empty, taking one or more actions at 614 may include the UE 604 camping on a first frequency band or a first frequency band combination included in the HPL based on the measured one or more parameters, as shown at 616. In some cases, when the HPL is empty, taking one or more actions at 614 may include camping on a second frequency band or a second frequency band combination included in the LPL based on the measured one or more parameters. Thus, during the initial camping process for the first SIM of the UE, the UE may prioritize the HPL frequency band or frequency band combination. Once the UE camps on a frequency band with the first SIM, the UE may update the HPL and / or LPL for an application (e.g., a call) of the second SIM.

[0103] In some cases, the UE 604 may camp on a frequency band or frequency band combination and reselect to a new frequency band or new frequency band combination determined based on the HPL, as shown at 616. When reselecting, the UE may preferentially reselect to an E-UTRA Absolute Radio Frequency Channel Number (EARFCN) included in the HPL.

[0104] In some cases, when in a call or in idle mode, the UE may prioritize entering a new call on a carrier aggregation combination or E-UTRAN New Radio Dual Connectivity (ENDC) band combination included in the HPL. The UE may prioritize bands and / or combinations of the HPL by omitting measurements of EARFCNs that are not included in the HPL or that are in a combination that is not included in the HPL from the measurement report.

[0105] In some cases, the UE 604 may obtain the HPL and LPL from the UE's memory in response to the UE powering up, as shown at 606. For example, when the UE powers up, the UE 604 may generate the HPL based on a static list (eg, stored in the UE's memory).

[0106] In some cases, the HPL and LPL may also be based on nonlinear interference cancellation (NLIC) of the band combination or intermodulation distortion (IMD) of the band combination. That is, when generating or updating the HPL or LPL, the UE 604 may place the band combination in the LPL based on information that the UE encounters NLIC when transmitting and / or receiving on the band combination.

[0107] In some cases, the one or more hardware components on which the HPL and LPL maintained at 608 and / or obtained from a memory of the UE at 606 are configured may include a radio frequency front end (RFFE) of the UE 604. The HPL and / or LPL used by the UE 604 at power-up may be generated from a static list, which may be determined based on the configuration of one or more HW components of the UE 604 (e.g., the static list may include frequency bands and frequency band combinations on which multiple SIMs of the UE may operate without the UE's RFFE tuning away from one frequency band being used by one SIM to support operation of another SIM). The HPL may be dynamically updated by the UE 604 during operation in the network, for example based on updates to frequency bands used by a second SIM and / or CA configurations received from the network entity 602.

[0108] In some cases, when the UE 604 is powered on, the UE 604 may generate an LPL by including all frequency bands and frequency band combinations supported by the UE 604 except those included in the HPL.

[0109] In some cases, the UE 604 may generate and maintain additional lists (e.g., more than two lists) of frequencies and band combinations with more priorities (e.g., priorities between high priority and low priority). These lists may be used and / or dynamically populated so that all sets of frequency bands and band combinations supported by the UE 604 are included in at least one list.

[0110] In some cases, at 618, the UE 604 may optionally report one or more capabilities of the UE 604 to the network entity 602, the one or more capabilities including one or more frequency bands or one or more frequency band combinations supported by the UE 604. In this case, the UE 604 may optionally receive a measurement object (MO) from the network entity based on the one or more capabilities of the UE, wherein the MO includes a list of indicators of network-supported frequency bands or network-supported frequency band combinations for carrier aggregation or handover, as shown at 620.

[0111] In addition, in this case, taking one or more actions at 614 may optionally include determining that one or more of the network supported frequency bands or network supported frequency band combinations are included in the HPL. That is, the UE may compare the MO with the HPL and determine which of the network supported frequency bands and network supported frequency band combinations are also in the HPL. In this case, the UE may also report the measured one or more parameters corresponding to the network supported frequency bands or network supported frequency band combinations included in the HPL in a measurement report sent to the network entity 602 at 626. The UE may also omit the measured one or more parameters corresponding to the network supported frequency bands or network supported frequency band combinations not included in the HPL from the measurement report.

[0112] In some cases, since the network generates the HO command based on the measurement report from the UE, reporting the measurements only for the bands and band combinations in the HPL (i.e., omitting the measurements for the bands and band combinations not in the HPL) can cause the network to generate a HO command to the UE to switch to the bands or combinations in the HPL, and cause the network to avoid generating a HO command to the UE to switch to the bands or combinations not in the HPL. In this case, the UE 604 can optionally receive a HO command from the network entity 602, the HO command instructing the UE to switch to the bands or band combinations in the HPL based on the measurement report, as shown at 630. In this case, the UE 604 can optionally store the MO in a memory of the UE at 622, and delete the indicator corresponding to the network-supported bands or network-supported band combinations (also called "packages") in the MO but not included in the HPL or included in the LPL from the stored MO, as shown at 624.

[0113] In some cases, the UE 604 may optionally update at least one of the HPL and the LPL, as shown at 632. In some such cases, the UE 604 may update the HPL or LPL based on the data throughput rate of the band combination. For example, the UE 604 may determine that the data throughput rate of the first band combination is lower than the data throughput rate of the second band combination, and the UE 604 may move the first band combination from the HPL to the LPL. In some such cases, the UE 604 may update the HPL or LPL based on the paging performance of the band combination. For example, when the band combination is used, the UE 604 may determine that the UE 604 misses the paging, and the UE 604 may then move the band combination to the LPL. In some such cases, the UE 604 may update the HPL or LPL based on the quality of the band combination. For example, when the UE 604 performs a call using the band combination, the UE 604 may determine that the call has a high block error rate (BLER), and the UE 604 may move the band combination to the LPL.

[0114] In some cases, the UE 604 may have a single SIM. In this case, the HPL may include a first set of bands or band combinations associated with camping and a second set of bands or band combinations associated with calling. The first set of bands or band combinations may be based on a first RFFE performance metric associated with camping, and the second set of bands or band combinations may be based on a second RFFE performance metric associated with calling. That is, the UE 604 with a single SIM may classify the bands and band combinations in the HPL based on whether the bands and band combinations are suitable for camping and / or whether the bands and band combinations are suitable for calling. In this case, the UE 604 may determine which bands and band combinations to camp on based on those bands and band combinations classified as suitable for camping. And similarly, in this case, the UE 604 may determine which bands and band combinations to use to perform a call based on those bands and band combinations classified as suitable for performing a call.

[0115] Figure 7 An example algorithm 700 for performing wireless communications in accordance with aspects of the present disclosure is depicted. In some cases, one or more aspects of the algorithm 700 may be performed by a network entity such as BS 102 and / or network entity 602. In some cases, one or more aspects of the algorithm 700 may be performed by a UE (e.g., UE 104 and / or UE 604).

[0116] As shown, at 704, the UE performs a modem configuration (MCFG) refresh in response to startup (e.g., power-on). At 706, the UE determines whether the UE has an HPL and LPL for each subscriber (e.g., each SIM) defined by the original equipment manufacturer (OEM) for the CA / SA frequency combination or band. If the UE does not have an HPL or LPL, the UE proceeds to 708 and uses a single list. However, if the UE does have an HPL and / or LPL, the algorithm 700 proceeds to 710, where the UE reads the HPL and LPL for each subscriber from the OEM list.

[0117] Thereafter, as shown at 712, the UE determines whether multiple SIMs of the UE are active (e.g., if the UE is configured to communicate using an MSIM). If the UE is not configured with an MSIM, algorithm 700 proceeds to 716, as described below. If the UE is configured with an MSIM, the UE updates the HPL and LPL of each subscriber per the MSIM band combination (e.g., the band combination supported by the active SIM) and proceeds to 716. At 716, the UE selects one or more E-UTRA Absolute Radio Frequency Channel Numbers (EARFCNs) from the HPL and triggers a camping procedure on the corresponding bands. If the UE does not successfully camp on any of the bands corresponding to the EARFCNs from the HPL, the UE selects one or more EARFCNs from the LPL and triggers a camping procedure on the corresponding bands.

[0118] At 718, the UE determines whether the UE is camped on a band or combination (e.g., a primary component carrier (PCC)) from the HPL. If not, the algorithm proceeds to 722, otherwise the algorithm 700 proceeds to 720. At 722, the UE triggers an acquisition process for the PCC in the LPL, and the algorithm 700 proceeds to 724. At 724, the UE updates the HPL and LPL according to the MSIM combination (e.g., the band combination supported by the active SIM), and the algorithm 700 proceeds to 720.

[0119] At 720, the UE reports its capabilities (i.e., the frequency bands and frequency band combinations on which the UE can transmit and receive) to the network. At 726, the network entity configures and transmits a measurement object (MO) to the UE, which indicates one or more frequency bands for the UE to measure and report in preparation for potential carrier aggregation or switching by the UE. At 730, the UE determines whether the MO indicates any frequency bands or frequency band combinations included in the HPL. If the MO does not indicate any frequency bands or frequency band combinations included in the HPL, algorithm 700 proceeds to 732, where the UE operates according to traditional behavior. However, if the MO indicates any frequency bands or frequency band combinations included in the HPL, algorithm 700 proceeds to 734, where the UE deletes (e.g., deletes) any frequency bands and frequency band combinations (indicated in the MO) that are not included in the HPL from the MO.

[0120] At 736, the UE performs one or more measurements only for the objects remaining in the MO after the pruning and reports the one or more measurements in a measurement report (MR), all of which correspond to the frequency bands and frequency band combinations included in the HPL. At 738, the network entity configures a secondary component carrier (SCC) for the UE or transmits a HO command based on the one or more measurements included in the MR reported by the UE for the frequency bands and frequency band combinations included in the HPL (e.g., the frequency bands and frequency band combinations not pruned from the MO). Then, as shown at 740, the UE operates on the frequency band or frequency band combination in the HPL based on the configured SCC or handover command.

[0121] In some cases, the techniques described herein related to the use of HPL and LPL may enable a UE to avoid performing a tune-away by causing the UE to transmit or receive more frequently on frequency bands and frequency band combinations that do not require the UE to perform a tune-away than the UE transmits or receives frequency bands and frequency band combinations that require the UE to perform a tune-away. Advantages of avoiding performing a tune-away may include improving the performance of the UE, such as by improving the throughput of a call (TPUT). Tuning away of an MSIM UE may have a dual impact, which may reduce the throughput of a call of the UE. The dual impact includes potentially losing packets (for any or all of the multiple SIMs of the UE) and potentially causing the network to reduce the service rate to the UE (e.g., transmit and receive data rates), which may reduce the throughput of the call while the network increases the service rate to the UE to reach peak levels again. In addition, the techniques described herein may enable a UE to avoid operating in a band package that is known to result in reduced UE performance (e.g., a band combination that is known to the UE to perform NLIC on or a band combination that is known to result in IMD at the UE).

[0122] Additionally, the architecture of the RFFE in the UE is important, especially in low-tier chipsets where the lower cost of the chipset typically results in a UE with a less capable RFFE. A less capable RFFE may increase the probability that the UE tunes away from a call active on SIM1 so that the UE monitors for a page to SIM2 (e.g., a DSDS scenario). Additionally, for a UE nominally capable of DSDA operation, a less capable RFFE may increase the chance of the UE tuning away and may prevent the UE from participating in DSDA for certain plans.

[0123] Example Operation of User Equipment

[0124] Figure 8 The method for use by a UE such as Figure 1 and Figure 3 Method 800 for performing wireless communications with a UE 104).

[0125] The method 800 begins at step 802 by maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by a UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE.

[0126] The method 800 then proceeds to step 804 of taking one or more actions based on the one or more measured parameters of the frequency band or frequency band combination and at least one of the HPL and the LPL.

[0127] In some cases, one or more HW components of the UE include a radio frequency front end (RFFE) of the UE.

[0128] In some cases, when the HPL is not empty, taking one or more actions in step 804 includes: camping on a first frequency band or a first frequency band combination included in the HPL based on the measured one or more parameters. In some cases, when the HPL is empty, taking one or more actions in step 804 includes: camping on a second frequency band or a second frequency band combination included in the LPL based on the measured one or more parameters.

[0129] In some cases, the UE includes at least a first subscriber identity module (SIM) and a second SIM. In some such cases, the method 800 may also include: camping on a first frequency band or a first frequency band combination using the first SIM, wherein taking one or more actions includes: camping on a second frequency band or a second frequency band combination selected from HPL or LPL using the second SIM based on the first frequency band or the first frequency band combination camping using the first SIM. In some such cases, the method 800 may also include at least one of: performing a call associated with the second SIM using the first frequency band or the first frequency band combination selected from HPL or LPL; or performing a call associated with the first SIM using the second frequency band or the second frequency band combination selected from HPL or LPL using carrier aggregation.

[0130] In some cases, method 800 may also include: camping on a frequency band or frequency band combination; and reselecting to a new frequency band or new frequency band combination determined based on the HPL.

[0131] In some cases, HPL and LPL are also based on nonlinear interference cancellation (NLIC) of the band combination or intermodulation distortion (IMD) of the band combination.

[0132] In some cases, the method 800 may further include obtaining the HPL and the LPL from a memory of the UE in response to the UE being powered on.

[0133] In some cases, when the HPL is not empty, taking one or more actions in step 804 includes reporting one or more measurement parameters of at least one of the frequency bands or frequency band combinations in the HPL while omitting one or more measurement parameters of the frequency bands or frequency band combinations in the LPL.

[0134] In some cases, the method 800 may also include: reporting one or more capabilities of the UE to the network entity, the one or more capabilities including one or more frequency bands or one or more frequency band combinations supported by the UE. In some such cases, the method 800 may also include: receiving a measurement object (MO) from the network entity based on the one or more capabilities of the UE, wherein the MO includes a list of indicators of network-supported frequency bands or network-supported frequency band combinations for carrier aggregation or switching. In some cases, taking one or more actions in step 804 may include: determining that one or more of the network-supported frequency bands or network-supported frequency band combinations are included in the HPL. In addition, in some such cases, taking one or more actions in step 804 may also include: reporting one or more measured parameters corresponding to the network-supported frequency bands or network-supported frequency band combinations included in the HPL in a measurement report sent to the network entity. In addition, in some such cases, taking one or more actions in step 804 may also include: omitting from the measurement report the measured one or more parameters corresponding to the network-supported frequency bands or network-supported combinations not included in the HPL. In some such cases, the method 800 further includes: receiving, based on the measurement report, a handover (HO) command from a network entity instructing the UE to hand over to a frequency band or frequency band combination in the HPL. In some such cases, the method 800 further includes: storing the MO in a memory of the UE. In some such cases, the method 800 further includes: deleting from the stored MO an indicator corresponding to a network-supported frequency band or a network-supported frequency band combination that is in the MO but not included in the HPL or included in the LPL.

[0135] In some cases, method 800 may also include updating at least one of the HPL and the LPL based on at least one of: a data throughput rate of the frequency band combination, a paging performance of the frequency band combination, and a quality of the frequency band combination (e.g., one or more parameters related to the package and measured by the UE, such as reference signal received power (RSRP), a signal-to-noise ratio (SNR), or a block error rate (BLER)).

[0136] In some cases, method 800 may also include maintaining one or more additional priority lists of frequency bands and frequency band combinations supported by the UE, wherein the additional priority lists have priorities different from the HPL and LPL, and wherein taking one or more actions in step 804 is also based on the one or more additional priority lists.

[0137] In some cases, the UE includes a single subscriber identity module (SIM). In some such cases, the HPL includes a first set of frequency bands or frequency band combinations associated with camping and a second set of frequency bands or frequency band combinations associated with calling. In some such cases, the first set of frequency bands or frequency band combinations is based on a first radio frequency front end (RFFE) performance metric associated with camping. In some such cases, the second set of frequency bands or frequency band combinations is based on a second RFFE performance metric associated with calling.

[0138] In one aspect, method 800 or any aspect related thereto may be performed by an apparatus such as Fig. 9 The method 800 is performed by a communication device 900, which includes various components that are operable, configured or adapted to perform the method 800. The device 900 is described in more detail below.

[0139] It should be noted that Figure 8 This is merely one example of a method, and other methods including fewer, additional, or alternative steps may also be consistent with the present disclosure.

[0140] Example Communication Device

[0141] Fig. 9 Depicted are aspects of an example communications device 900. In some examples, the communications device 900 is a user equipment (UE), such as described above with respect to Figure 1 and Figure 3 UE 104 is described.

[0142] The communication device 900 includes a processing system 902 coupled to a transceiver 908 (e.g., a transmitter and / or a receiver). The transceiver 908 is configured to transmit and receive signals (such as various signals as described herein) for the communication device 900 via an antenna 910. The processing system 902 may be configured to perform processing functions for the communication device 900, including processing signals received and / or to be transmitted by the communication device 900.

[0143] The processing system 902 includes one or more processors 920. In various aspects, the one or more processors 920 may represent one or more of the receive processor 358, the transmit processor 364, the TX MIMO processor 366, and / or the controller / processor 380, as shown in FIG. Figure 3 The one or more processors 920 are coupled to a computer readable medium / memory 930 via bus 906. In some aspects, the computer readable medium / memory 930 is configured to store instructions (e.g., computer executable code) that, when executed by the one or more processors 920, cause the one or more processors 920 to perform operations related to Figure 8The method 800 described herein or any aspect related thereto. Note that reference to a processor performing a function of the communication device 900 may include one or more processors performing that function of the communication device 900.

[0144] In the depicted example, the computer readable medium / memory 940 stores code (e.g., executable instructions) for maintaining 941, code for taking action 942, code for staying 943, code for performing a call 944, code for reselecting 945, code for obtaining 946, code for reporting 947, code for receiving 948, code for determining 949, code for omitting 950, code for storing 951, code for deleting 952, and code for updating 953. Processing of the codes 941-953 may cause the communication device 900 to perform operations relative to Figure 8 The described method 800 or any aspect related thereto.

[0145] The one or more processors 920 include circuits configured to implement (e.g., execute) code stored in the computer-readable medium / memory 930, including circuits 921 for maintaining, circuits 922 for taking actions, circuits 923 for staying, circuits 924 for performing calls, circuits 925 for reselecting, circuits 926 for obtaining, circuits 927 for reporting, circuits 928 for receiving, circuits 929 for determining, circuits 930 for omitting, circuits 931 for storing, circuits 932 for deleting, and circuits 933 for updating. Processing using circuits 921-933 may cause the communication device 900 to perform operations relative to Figure 8 The described method 800 or any aspect related thereto.

[0146] The various components of the communication device 900 may be provided for performing Figure 8 The described method 800 or any aspect thereof may include means for sending, transmitting, or outputting for sending. Figure 3 The transceiver 354 and / or antenna 352 and / or Fig. 9 The transceiver 908 and antenna 910 of the communication device 900 in FIG. 1 may include Figure 3 The transceiver 354 and / or antenna 352 and / or Fig. 9 The transceiver 908 and antenna 910 of the communication device 900 in FIG.

[0147] Sample Clauses

[0148] Specific implementation examples are described in the following numbered clauses:

[0149] Clause 1: A method for wireless communication by a user equipment (UE), the method comprising: maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; and taking one or more actions based on one or more measurement parameters of the frequency band or the frequency band combination and at least one of the HPL and the LPL.

[0150] Clause 2: The method of clause 1, wherein the one or more HW components of the UE include a radio frequency front end (RFFE) of the UE.

[0151] Clause 3: A method according to any one of clauses 1-2, wherein: when the HPL is not empty, taking the one or more actions includes: residing on a first frequency band or a first frequency band combination included in the HPL based on the one or more measurement parameters, and when the HPL is empty, taking the one or more actions includes: residing on a second frequency band or a second frequency band combination included in the LPL based on the one or more measurement parameters.

[0152] Clause 4: A method as described in any of clauses 1-3, wherein the UE comprises at least a first Subscriber Identity Module (SIM) and a second SIM.

[0153] Clause 5: The method according to Clause 4 further includes: using the first SIM to reside on a first frequency band or a first frequency band combination, wherein: taking the one or more actions includes: based on the first frequency band or the first frequency band combination resided using the first SIM, using the second SIM to reside on a second frequency band or a second frequency band combination selected from the HPL or the LPL.

[0154] Clause 6: According to the method described in any one of clauses 4-5, the method further includes at least one of the following: using a first frequency band or a first frequency band combination selected from the HPL or the LPL to perform a call associated with the second SIM; or using carrier aggregation, using a second frequency band or a second frequency band combination selected from the HPL or the LPL to perform a call associated with the first SIM.

[0155] Clause 7: A method as described in any of clauses 1-4, the method further comprising: camping on a frequency band or a frequency band combination; and reselecting to a new frequency band or a new frequency band combination determined based on the HPL.

[0156] Clause 8: The method of clauses 1-7, wherein the HPL and the LPL are further based on band-combined non-linear interference cancellation (NLIC) or band-combined intermodulation distortion (IMD).

[0157] Clause 9: A method as described in any of clauses 1-8, further comprising: in response to the UE being powered on, obtaining the HPL and the LPL from a memory of the UE.

[0158] Clause 10: A method according to any one of clauses 1-9, wherein when the HPL is not empty: taking the one or more actions includes: reporting the one or more measurement parameters of at least one of the frequency bands or the frequency band combination in the HPL, while omitting the one or more measurement parameters of the frequency band or the frequency band combination in the LPL.

[0159] Clause 11: A method according to any of clauses 1-10, the method further comprising: reporting one or more capabilities of the UE to a network entity, the one or more capabilities comprising one or more frequency bands or one or more frequency band combinations supported by the UE.

[0160] Clause 12: The method according to Clause 11 further comprises: receiving a measurement object (MO) from the network entity based on the one or more capabilities of the UE, wherein the MO comprises a list of indicators of network-supported frequency bands or network-supported frequency band combinations for carrier aggregation or switching, wherein taking the one or more actions comprises: determining that the HPL includes one or more of the network-supported frequency bands or the network-supported frequency band combinations, reporting the one or more measurement parameters corresponding to the network-supported frequency bands or the network-supported frequency band combinations included in the HPL in a measurement report sent to the network entity, and omitting from the measurement report the one or more measurement parameters corresponding to the network-supported frequency bands or the network-supported frequency band combinations not included in the HPL.

[0161] Clause 13: The method of clause 12, further comprising: receiving a handover (HO) command from the network entity instructing the UE to hand over to a frequency band or a combination of frequency bands in the HPL based on the measurement report.

[0162] Clause 14: A method according to any one of clauses 12-13, the method further comprising: storing the MO in a memory of the UE; and deleting from the stored MO the indicator corresponding to the network-supported frequency band or the network-supported frequency band combination in the MO but not included in the HPL or included in the LPL.

[0163] Clause 15: The method of any of clauses 1-14, further comprising: updating at least one of the HPL and the LPL based on at least one of: a data throughput rate of a frequency band combination, a paging performance of a frequency band combination, and a quality of a frequency band combination.

[0164] Clause 16: A method according to any one of clauses 1-15, the method further comprising: maintaining one or more additional priority lists of frequency bands and frequency band combinations supported by the UE, wherein the additional priority lists have different priorities from the HPL and the LPL, and wherein: taking the one or more actions is also based on the one or more additional priority lists.

[0165] Clause 17: A method according to any one of clauses 1-3, wherein: the UE includes a single subscriber identity module (SIM), the HPL includes a first set of frequency bands or frequency band combinations associated with dwell and a second set of frequency bands or frequency band combinations associated with calls, the first set of frequency bands or frequency band combinations are based on a first radio frequency front end (RFFE) performance metric associated with dwell, and the second set of frequency bands or frequency band combinations are based on a second RFFE performance metric associated with calls.

[0166] Clause 18: An apparatus, the apparatus comprising: a memory including executable instructions; and a processor configured to execute the executable instructions and cause the apparatus to perform the method according to any one of clauses 1 to 17.

[0167] Clause 19: An apparatus comprising means for performing the method according to any one of clauses 1 to 17.

[0168] Clause 20: A non-transitory computer readable medium comprising executable instructions which, when executed by a processor of an apparatus, cause the apparatus to perform the method of any one of clauses 1 to 17.

[0169] Clause 21: A computer program product embodied on a computer readable storage medium, the computer readable storage medium comprising code for performing the method according to any one of clauses 1 to 17.

[0170] Additional considerations

[0171] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein are not limited to the scope, applicability or aspects set forth in the claims. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, without departing from the scope of the present disclosure, the functions and arrangements of the elements discussed may be changed. Various examples may omit, replace or add various processes or components as appropriate. For example, the described methods may be performed in a different order than the described order, and various actions may be added, omitted or combined. In addition, the features described with respect to some examples may be combined in some other examples. 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 devices or methods practiced using other structures, functionality, or structures and functionality other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0172] The various illustrative logical blocks, modules, and circuits described in conjunction with the present disclosure may be implemented or performed using a general purpose processor, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. The general purpose processor may be a microprocessor, but in an alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, a system on a chip (SoC), or any other such configuration.

[0173] As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items (including single members). As an example, "at least one of a, b, or c" is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0174] As used herein, the term "determining" encompasses a wide variety of actions. For example, "determining" may include calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, a database, or another data structure), ascertaining, and the like. Additionally, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), and the like. Additionally, "determining" may include resolving, selecting, choosing, establishing, and the like.

[0175] The method disclosed herein includes one or more actions for implementing the method. The method actions may be interchangeable with each other without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. In addition, the various operations of the method described above may be performed by any suitable component capable of performing the corresponding function. The component may include various hardware and / or software components and / or modules, including but not limited to circuits, application specific integrated circuits (ASICs) or processors.

[0176] The following claims are not intended to be limited to the various aspects shown herein, but should be given the full scope consistent with the language of the claims. Within the claims, unless explicitly stated, reference to an element in the singular form is not intended to mean "one and only one", but "one or more". Unless otherwise specifically stated, the term "some" refers to one or more. Any claim element is not interpreted according to the provisions of 35 U.S.C. § 112 (f) unless the element is explicitly stated using the phrase "member for...". All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are known or will be known later to a person of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, regardless of whether such disclosure is explicitly stated in the claims, anything disclosed herein is not intended to be disclosed to the public.

Claims

1. A method for wireless communication by a user equipment (UE), the method comprising: maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; as well as One or more actions are taken based on the one or more measured parameters of the frequency band or the frequency band combination and at least one of the HPL and the LPL.

2. The method of claim 1, wherein the one or more HW components of the UE include a radio frequency front end (RFFE) of the UE.

3. The method according to claim 1, wherein: When the HPL is not empty, taking the one or more actions includes: residing on a first frequency band or a first frequency band combination included in the HPL based on the one or more measurement parameters, and When the HPL is empty, taking the one or more actions includes camping on a second frequency band or a second frequency band combination included in the LPL based on the one or more measurement parameters. 4 . The method of claim 1 , wherein the UE comprises at least a first Subscriber Identity Module (SIM) and a second SIM.

5. The method according to claim 4, further comprising: camping on a first frequency band or a first frequency band combination using the first SIM, wherein: Taking the one or more actions includes camping on a second frequency band or a second frequency band combination selected from the HPL or the LPL using the second SIM based on camping on the first frequency band or the first frequency band combination using the first SIM.

6. The method according to claim 4, further comprising at least one of the following: performing a call associated with the second SIM using a first frequency band or a first frequency band combination selected from the HPL or the LPL; or Using carrier aggregation, a call associated with the first SIM is performed using a second frequency band or a second frequency band combination selected from the HPL or the LPL.

7. The method according to claim 1, further comprising: reside on a frequency band or combination of frequency bands; as well as Reselect to a new frequency band or a new frequency band combination determined based on the HPL.

8. The method of claim 1, wherein the HPL and the LPL are further based on non-linear interference cancellation (NLIC) of a frequency band combination or intermodulation distortion (IMD) of a frequency band combination.

9. The method according to claim 1, further comprising: In response to the UE being powered on, obtaining the HPL and the LPL from a memory of the UE.

10. The method of claim 1, wherein when the HPL is not empty: Taking the one or more actions includes: The one or more measurement parameters of at least one of the frequency band or the frequency band combination in the HPL are reported while the one or more measurement parameters of the frequency band or the frequency band combination in the LPL are omitted.

11. The method according to claim 1, further comprising: One or more capabilities of the UE are reported to a network entity, where the one or more capabilities include one or more frequency bands or one or more frequency band combinations supported by the UE.

12. The method according to claim 11, further comprising: Receiving a measurement object (MO) from the network entity based on the one or more capabilities of the UE, wherein the MO comprises a list of indicators of network supported frequency bands or network supported frequency band combinations for carrier aggregation or handover, wherein taking the one or more actions comprises: determining that the HPL includes one or more of the frequency bands supported by the network or the frequency band combinations supported by the network, reporting, in a measurement report sent to the network entity, the one or more measurement parameters corresponding to the frequency band supported by the network or the combination of frequency bands supported by the network included in the HPL, and The one or more measurement parameters corresponding to the network-supported frequency bands or the network-supported combinations not included in the HPL are omitted from the measurement report.

13. The method according to claim 12, further comprising: Based on the measurement report, a handover (HO) command is received from the network entity instructing the UE to hand over to a frequency band or a combination of frequency bands in the HPL.

14. The method according to claim 12, further comprising: storing the MO in a memory of the UE; as well as The indicator corresponding to the frequency band supported by the network or the combination of frequency bands supported by the network that is in the MO but not included in the HPL or included in the LPL is deleted from the stored MO.

15. The method according to claim 1, further comprising: At least one of the HPL and the LPL is updated based on at least one of: Data throughput rate of the frequency band combination, Paging performance for band combinations, and The quality of the band combination.

16. The method according to claim 1, further comprising: maintaining one or more additional priority lists of frequency bands and frequency band combinations supported by the UE, wherein the additional priority lists have different priorities than the HPL and the LPL, wherein: Taking the one or more actions is also based on the one or more additional priority lists.

17. The method of claim 1, wherein: The UE comprises a single Subscriber Identity Module (SIM), The HPL includes a first set of frequency bands or frequency band combinations associated with camping and a second set of frequency bands or frequency band combinations associated with calling, The first set of frequency bands or frequency band combinations is based on a first radio frequency front end (RFFE) performance metric associated with a dwell, and The second set of frequency bands or frequency band combinations is based on a second RFFE performance metric associated with the call.

18. A user equipment (UE) configured for wireless communication, the user equipment (UE) comprising: a memory including computer executable instructions; and a processor configured to execute the computer executable instructions and cause the UE to: maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; as well as One or more actions are taken based on the one or more measured parameters of the frequency band or the frequency band combination and at least one of the HPL and the LPL.

19. The UE of claim 18, wherein the processor is configured to execute the computer executable instructions and further cause the UE to: reside on a frequency band or combination of frequency bands; and Reselect to a new frequency band or a new frequency band combination determined based on the HPL.

20. A non-transitory computer-readable medium comprising computer-executable instructions that, when executed by a processor of a user equipment (UE), cause the UE to perform a method of wireless communication, the method comprising: maintaining a high priority list (HPL) and a low priority list (LPL) of frequency bands and frequency band combinations supported by the UE, wherein the HPL and the LPL are based on one or more hardware (HW) components of the UE; as well as One or more actions are taken based on the one or more measured parameters of the frequency band or the frequency band combination and at least one of the HPL and the LPL.

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