Neighbor measurement adjustments for dual connectivity
By transmitting information related to measurement offset in a dual-connectivity environment, communication quality and throughput problems caused by interference in a dual-connectivity environment are solved, and more efficient frequency band utilization and communication optimization are achieved.
Patent Information
- Application Number
- CN202080078432.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-11-16
- Filing Date
- 2020-11-17
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2040-11-17
AI Technical Summary
In a dual-connection (DC) environment, it is difficult for user equipment (UE) and base stations to effectively handle interference from one frequency band to another frequency band, resulting in neighbor measurement offsets, affecting communication quality and throughput.
By transmitting information related to the measurement offset between the user equipment (UE) and the base station, the UE can decide whether to apply the measurement offset based on the estimated impact of interference from the first frequency band to the second frequency band and selectively apply it. Used for neighbor measurements or reporting to base stations.
This method can improve communication quality and throughput in a dual-connection environment, reduce inter-band interference due to interference, and optimize neighbor measurement results.
Smart Images

Figure CN114731549B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 937,233, filed on November 18, 2019, entitled “NEIGHBOR MEASUREMENT ADJUSTMENT FOR DUAL CONNECTIVITY,” and U.S. Non-Provisional Patent Application No. 16 / 949,823, filed on November 16, 2020, entitled “NEIGHBOR MEASUREMENT ADJUSTMENT FOR DUAL CONNECTIVITY,” both of which are hereby expressly incorporated herein by reference. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for neighbor measurement adjustment for dual connectivity (DC). Background Art
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE Advanced is a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).
[0005] A wireless communication network may include many base stations (BS) that may support communications for many user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a NodeB, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G NodeB, etc.
[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at municipal, national, regional and even global levels. New Radio (NR), which may also be referred to as 5G, is a collection of enhancements to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to better support mobile broadband Internet access. However, as the demand for mobile broadband access continues to increase, there is a need for further improvements to LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention
[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: for a combination of a first frequency band and a second frequency band, determining whether to apply a measurement offset to a neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band on the second frequency band; and selectively applying the measurement offset to the neighbor measurement based at least in part on whether the measurement offset is to be applied; or selectively reporting the measurement offset to a base station associated with the neighbor measurement based at least in part on whether the measurement offset is to be applied.
[0008] In some aspects, a method of wireless communication performed by a base station may include: receiving at least one of the following from a user equipment (UE): a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band to a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band; and configuring a dual connectivity configuration of the UE based at least in part on the neighbor measurement or the measurement offset.
[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: for a combination of a first frequency band and a second frequency band, determine whether to apply a measurement offset to a neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band to the second frequency band; and selectively apply the measurement offset to the neighbor measurement based at least in part on whether the measurement offset is to be applied; or selectively report the measurement offset to a base station associated with the neighbor measurement based at least in part on whether the measurement offset is to be applied.
[0010] In some aspects, a base station for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive at least one of the following from a user equipment (UE): a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band to a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band; and configure a dual connectivity configuration of the UE based at least in part on the neighbor measurement or the measurement offset.
[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: determine, for a combination of a first frequency band and a second frequency band, whether to apply a measurement offset to a neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band to the second frequency band; and selectively apply the measurement offset to the neighbor measurement based at least in part on whether the measurement offset is to be applied; or selectively report the measurement offset to a base station associated with the neighbor measurement based at least in part on whether the measurement offset is to be applied.
[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: receive from a user equipment (UE) at least one of the following: a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band to a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band; and configure a dual connectivity configuration of the UE based at least in part on the neighbor measurement or the measurement offset.
[0013] In some aspects, an apparatus for wireless communication may include: a component for determining, for a combination of a first frequency band and a second frequency band, whether to apply a measurement offset to neighbor measurements on a second frequency band based at least in part on an estimated impact of interference from the first frequency band on the second frequency band; and a component for selectively applying the measurement offset to neighbor measurements based at least in part on whether the measurement offset is to be applied; or a component for selectively reporting the measurement offset to a base station associated with the neighbor measurements based at least in part on whether the measurement offset is to be applied.
[0014] In some aspects, an apparatus for wireless communication may include: a component for receiving at least one of the following from a user equipment (UE): a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band to a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band; and a component for configuring a dual connectivity configuration of the UE based at least in part on the neighbor measurement or the measurement offset.
[0015] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as generally described with reference to and as illustrated in the accompanying drawings and description.
[0016] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may easily serve as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and methods of operation, and related advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to be able to understand the above features of the present disclosure in detail, a more specific description of the content briefly summarized above can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and should not be considered as limiting its scope, as the description may allow other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0018] Figure 1 is a block diagram illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.
[0019] Figure 2 is a block diagram illustrating an example of a base station communicating with a UE in a wireless communication network according to various aspects of the present disclosure.
[0020] Figure 3 is a diagram illustrating an example of determining and / or applying a measurement offset for a frequency band combination in accordance with various aspects of the present disclosure.
[0021] Figure 4 is a diagram illustrating an example process performed, for example, by a user device, according to various aspects of the present disclosure.
[0022] Figure 5 is a diagram illustrating example processes performed, for example, by a base station according to various aspects of the present disclosure. DETAILED DESCRIPTION
[0023] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. Rather, these aspects are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.
[0024] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0025] It should be noted that although various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).
[0026] Figure 11 is a diagram illustrating a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include a plurality of BSs 110 (shown as BSs 110a, BSs 110b, BSs 110c, and BSs 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, NodeB, gNB, 5GnodeB (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" may refer to a coverage area of a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.
[0027] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "nodeB", "5GNB", and "cell" may be used interchangeably herein.
[0028] In some aspects, the cell may not necessarily be stationary, and the geographic area of the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) using any suitable transport network.
[0029] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the illustrated example, a relay BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.
[0030] The wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).
[0031] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.
[0032] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.
[0033] Some UEs may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc. that can communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).
[0034] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.
[0035] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh network, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations performed by base station 110 as described elsewhere herein.
[0036] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands within a first frequency range (FR1), which may span from 410 MHz to 7.125 GHz, and / or may communicate using one or more operating bands within a second frequency range (FR2), which may span from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although portions of FR1 are above 6 GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 is often referred to as a “millimeter wave” band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified by the International Telecommunication Union (ITU) as a “millimeter wave” band. Therefore, unless otherwise expressly stated, it should be understood that the terms "sub-6 GHz" and the like (if used herein) can broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., above 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., below 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0037] As indicated above, provide Figure 1 As an example. Other examples can be related to Figure 1 Different than described.
[0038] Figure 2 It shows that it can be Figure 1 1. Block diagram of a design 200 of base station 110 and UE 120 for one of the base stations and one of the UEs in FIG. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.
[0039] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 can process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, position coding can be used to generate synchronization signals to convey additional information.
[0040] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.
[0041] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide decoded data to a data sink 239 and decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.
[0042] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other (one or more) components of the base station 110 may perform one or more techniques associated with neighbor measurement adjustment for dual connectivity, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) of may perform or direct e.g. Figure 4 The process of 400 Figure 5 The operations of process 500 and / or other processes described herein may be performed. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, when one or more instructions are executed by one or more processors of base station 110 and / or UE 120, they may perform or direct, for example, Figure 4 The process of 400 Figure 5 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.
[0043] In some aspects, UE 120 may include: a component for determining, for a combination of a first frequency band and a second frequency band, whether to apply a measurement offset to a neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band on the second frequency band; a component for selectively applying the measurement offset to the neighbor measurement based at least in part on whether the measurement offset is to be applied; a component for selectively reporting the measurement offset to a base station associated with the neighbor measurement based at least in part on whether the measurement offset is to be applied; a component for determining whether to apply the measurement offset to multiple neighbor measurements based at least in part on respective estimated impacts of interference from the first frequency band on multiple frequencies ; a component for applying a measurement offset to a first neighbor measurement in a plurality of neighbor measurements, wherein the measurement offset is not applied to a second neighbor measurement in the plurality of neighbor measurements; a component for selecting a frequency in a plurality of frequencies based at least in part on a respective estimated impact of interference on the selected frequency satisfying a threshold; a component for reporting the selected frequency to a base station; a component for selectively applying the measurement offset to the neighbor measurement; a component for selectively reporting the measurement offset to the base station; a component for determining the measurement offset; a component for receiving a dual connectivity configuration based at least in part on applying the measurement offset to the neighbor measurement or reporting the measurement offset to the base station, etc. In some aspects, such components may include a combination of Figure 2One or more components in UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.
[0044] In some aspects, the base station 110 may include: a component for receiving at least one of the following from the UE: a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band on a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band; a component for configuring a dual connectivity configuration of the UE based at least in part on the neighbor measurement or the measurement offset; a component for receiving information identifying a selected frequency from a plurality of frequencies based at least in part on the estimated impact of interference on the selected frequency satisfying a threshold, wherein configuring the dual connectivity configuration is based at least in part on the information identifying the selected frequency; and so on. In some aspects, such a component may include combining Figure 2 One or more components in base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.
[0045] As indicated above, provide Figure 2 As an example. Other examples can be related to Figure 2 Different than described.
[0046] The UE can use a dual connection (DC) configuration to communicate simultaneously using a frequency band combination (such as two or more different frequency bands or two or more frequencies on the same frequency band). Examples of DC configurations include multi-radio access technology (multi-RAT) dual connection (MR-DC), E-UTRA-NR dual connection (EN-DC), NR-E-UTRA dual connection (NE-DC), and NR dual connection (NR-DC). In some cases, the first band set (e.g., one or more bands) of the DC configuration may cause interference that affects the second band set (e.g., one or more bands) of the DC configuration. For example, consider a DC configuration with LTE band B3 and NR band N78. In this case, the LTE band B3 uplink in frequency division duplexing can be associated with a frequency of 1710–1785 MHz, while the NR band N78 can be associated with a frequency of 3300–3800 MHz. In this case, interference from the second harmonic of the LTE band B3 transmission may affect NR band N78 reception. When in LTE mode (e.g., using (one or more) LTE-only serving cells), the UE may perform neighbor measurements on NR Band N78 using network-configured measurement gaps (e.g., 6ms measurement gaps). As a result, the UE may not detect interference because the NR Band N78 measurements may not be affected by LTE Band B3 transmissions due to the measurement gaps. In this case, the UE may report satisfactory (e.g., strong) measurements on NR Band N78, so the network may configure the cell that performs neighbor measurements on NR Band N78 for EN-DC communications. When transitioning to EN-DC, demodulation, intra-frequency measurements, etc. of NR Band N78 may be subject to signal-to-noise ratio (SNR) degradation of up to, for example, 27dB. This may result in lower throughput for the cell of NR Band N78.
[0047] In the case of self-interference between different bands of the UE, there may be cells on other bands or other carriers on bands that are associated with less favorable neighbor measurements and are not as severely affected by interference as NR band N78. In addition, if intra-frequency measurements on NR band N78 are affected by self-interference, while inter-frequency measurements on other NR frequencies are not affected, the UE may be switched to another NR frequency after transitioning to EN-DC mode on LTE band B3 and NR band N78. This may increase overhead and network congestion, further reducing throughput.
[0048] Furthermore, although the examples described above involve harmonic interference, these problems may also occur due to factors such as intermodulation distortion, modulation spurious associated with a voltage-controlled oscillator or a local oscillator of the UE, UE component design or hardware design (e.g., modulation samples between a beamer and a streamer of the UE), etc., which are collectively referred to herein as "interference". In addition, these problems may apply to various frequency band combinations (e.g., LTE and NR bands, NR frequency range (FR) 1 (FR1) and NR FR2, EN-DC (e.g., LTE+FR1) and FR1, EN-DC (e.g., LTE+FR2) and FR2, etc.).
[0049] Some techniques and devices described herein provide for determining adjustments to neighbor measurements (such as neighbor measurements of NR bands) on victim frequencies of interference associated with another band or the same band. For example, some techniques and devices described herein provide for determining whether to apply a measurement offset to neighbor measurements based at least in part on various factors, which will be described in more detail below. In addition, some techniques and devices described herein provide for the application of a measurement offset to neighbor measurements before being signaled and / or signaled for use of neighbor measurements by a base station. Some techniques and devices described herein provide for a base station to determine a DC configuration based at least in part on adjusted neighbor measurements and / or at least in part on measurement offsets associated with adjusted neighbor measurements. Therefore, when reporting measurements and when configuring a DC configuration, the UE and BS can consider the impact of interference on neighbor measurements of the NR band. This can reduce the overhead and congestion associated with repeated switching to find a low-interference band, and can increase throughput on the NR band.
[0050] Figure 3 is a diagram illustrating an example 300 of determination and / or application of a measurement offset for a frequency band combination in accordance with various aspects of the present disclosure. As shown, example 300 includes BS 110 and UE 120. In example 300, UE 120 is capable of DC communication, for example, using EN-DC or another type of DC configuration.
[0051] like Figure 31 and as shown by reference numeral 310, BS 110 may provide a measurement configuration for UE 120. The measurement configuration may identify a configuration of one or more neighbor measurements to be performed by UE 120. For example, one or more neighbor measurements may be associated with a NR band of a DC configuration. In some aspects, one or more neighbor measurements may be associated with a corresponding target carrier, cell, or frequency. Neighbor measurements may include, for example, reference signal received power (RSRP) measurements (e.g., SS-RSRP measurements), reference signal received quality (RSRQ) measurements (e.g., SS-RSRQ measurements), signal to interference plus noise ratio (SINR) values (e.g., SS-SINR measurements), etc. A measurement offset is an adjustment to a measurement value of a neighbor measurement, as described in more detail elsewhere herein.
[0052] The measurement configuration is a configuration provided from the BS 110 to the UE 120 to configure the UE 120 to perform NR measurements, inter-radio access technology measurements of the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) frequency, etc. The measurement configuration may configure the UE 120 to report measurement information based at least in part on measurement resources such as synchronization signal blocks (SSBs), channel state information reference signal (CSI-RS) resources, channel state information interference management (CSI-IM) resources, etc. The measurement configuration may include a measurement object, a reporting configuration, a measurement identifier, a quantity configuration, a measurement gap configuration, or a combination thereof. The measurement object may provide a list of objects for which the UE 120 may perform measurements for intra-frequency and inter-frequency operations. The reporting configuration may indicate a reporting standard, a reference signal type, and / or a reporting format for the measurement object. The measurement identifier may link the measurement object with the reporting configuration. The quantity configuration may describe the filter coefficients of the layer 3 filter used for the measurement. The measurement gap configuration may indicate the gap in which the UE 120 will perform the measurement. In some aspects, UE 120 may determine measurement information based at least in part on one or more measurement configurations and / or may report measurement information based at least in part on one or more measurement configurations. In some aspects, a first frequency band set may cause interference to a second frequency band set. Unless otherwise specified, references to "first frequency band" herein shall be understood to refer to "first frequency band set", and unless otherwise specified, references to "second frequency band" herein shall be understood to refer to "second frequency band set". Interference may be associated with harmonic effects from the first frequency band, intermodulation distortion effects from the first frequency band, modulation spurs from the first frequency band, RF hardware design of UE 120, and the like. If neighbor measurements are configured for the second frequency band, interference from the first frequency band may or may not affect neighbor measurements on the second frequency band. For example, if neighbor measurements are performed in a measurement gap, the effect of interference from the first frequency band on neighbor measurements may be less than the effect of interference from the first frequency band on DC communications on the second frequency band. As another example, interference on a first frequency band may affect some frequencies (eg, some resource blocks, cells, or a set of carriers) more than other frequencies on a second frequency band.
[0053] As indicated by reference numeral 320, UE 120 may determine whether to apply one or more measurement offsets to one or more neighbor measurements on a second frequency band based at least in part on an estimated impact of interference from a first frequency band. For example, UE 120 may determine an estimated impact of interference to a second frequency band. UE 120 may determine whether to apply one or more measurement offsets, and / or may determine one or more measurement offsets for one or more neighbor measurements. UE 120 may selectively apply one or more measurement offsets (when one or more measurement offsets are to be applied), as indicated by reference numeral 330, and / or may selectively report one or more measurement offsets and / or modified measurements, as indicated by reference numeral 340. Each of these concepts is described in turn below.
[0054] In some aspects, UE 120 may determine whether to apply a measurement offset. Additionally or alternatively, UE 120 may determine a value of the measurement offset. In some aspects, UE 120 may determine whether a filtering or isolation configuration (e.g., a power amplifier or radio frequency filter, an antenna isolation configuration, a printed circuit board isolation configuration, etc.) of UE 120 can suppress interference to meet a threshold, and may determine the value of the measurement offset and / or whether to apply the measurement offset based at least in part on whether the threshold is met. In some aspects, UE 120 may determine whether a signal processing technique (such as a nonlinear interference cancellation signal processing technique, etc.) can suppress interference to meet a threshold, and may determine the value of the measurement offset and / or whether to apply the measurement offset based at least in part on whether the threshold is met.
[0055] In some aspects, UE 120 may determine whether to apply a measurement offset and / or determine the value of the measurement offset based at least in part on historical information. For example, UE 120 may determine whether a carrier or frequency measured by a neighbor will be affected by interference by referring to historical information indicating a carrier or frequency of a second frequency band that has been affected by interference from a first frequency band. This may be based at least in part on the carrier bandwidth of the first frequency band and a synchronization signal block indicating a carrier or frequency associated with the second frequency band. In some aspects, BS 110 may configure a DC configuration in which a channel or frequency associated with the second frequency band does not overlap with an interference frequency range of the first frequency band as indicated by historical information, thereby reducing interference and increasing throughput on the second frequency band. In some aspects, UE 120 may store information identifying a carrier or frequency of the second frequency band and indicating an interference level associated with the carrier or frequency.
[0056] In some aspects, the UE 120 may determine whether to apply a measurement offset and / or determine a value of the measurement offset based at least in part on determining whether the second frequency band (e.g., a carrier of the second frequency band, a frequency on the second frequency band, etc.) provides better throughput than the third frequency band taking into account the estimated impact of interference. For example, the UE 120 may determine whether to apply a measurement offset and / or determine a value of the measurement offset based at least in part on a normalization factor of reduced sensitivity caused by a difference in at least one of the channel bandwidth or number of layers of the second frequency band relative to one or more other frequency bands. As an example, a frequency band with a 100 MHz channel bandwidth and 4 layers may provide a higher throughput or better performance than a frequency band with a 20 MHz frequency division duplex (FDD) channel and 2 layers, even if subject to interference from another frequency band. In this case, the UE 120 may determine whether to apply a measurement offset and / or determine a value of the measurement offset based at least in part on the expected or historical throughput of the frequency band with a 100 MHz channel bandwidth relative to the frequency band with a 20 MHz FDD channel.
[0057] In some aspects, UE 120 may determine whether to apply a measurement offset and / or determine a value of the measurement offset based at least in part on a traffic level associated with the second frequency band. In this case, UE 120 may determine whether to apply a measurement offset and / or a value of the measurement offset based at least in part on an aggressor uplink resource block allocation of the first frequency band and / or a victim downlink resource block allocation of the second frequency band. For example, if the estimated impact satisfies a threshold (e.g., below a threshold) based at least in part on an estimated uplink data throughput on the first frequency band or at least in part on a transmit power on the first frequency band, UE 120 may determine not to apply a measurement offset. As a more specific example, if the current traffic and / or expected traffic of UE 120 is primarily downlink-centric (e.g., if there is more downlink traffic than uplink traffic in a time window, or if the amount of downlink traffic meets a threshold relative to the amount of uplink traffic), UE 120 may determine not to apply a measurement offset.
[0058] In some aspects, UE 120 may determine whether to apply a measurement offset and / or determine a value for the measurement offset based at least in part on external interference, such as interference from a cell that is not associated with UE 120. In this case, if network congestion or network load meets a threshold, inter-cell interference (e.g., interference from a cell that is not associated with UE 120) may negatively affect neighbor measurements. In some aspects, UE 120 may determine a measurement offset and / or whether to apply a measurement offset based at least in part on an interference level associated with the external interference. For example, if the interference level meets a threshold, the UE may determine a measurement offset having a value corresponding to the threshold and / or may determine that a measurement offset is to be applied.
[0059] In some aspects, UE 120 may determine an estimated impact associated with transmitter harmonics from the first frequency band based at least in part on a link budget. The link budget may be based at least in part on one or more of the factors listed below:
[0060] The transmit power at the power amplifier output of the UE 120;
[0061] nth harmonic relative to the carrier at the power amplifier output of the UE 120;
[0062] · A printed circuit board isolation configuration of the UE 120;
[0063] The nth harmonic power at the low noise amplifier input of the UE 120;
[0064] Receiver noise of UE 120;
[0065] Aggregate noise and interference at the low noise amplifier of UE 120;
[0066] Signal-to-Interference-Noise (SINR) requirements of the UE 120;
[0067] High-order receive diversity (HORxD) gain of UE 120;
[0068] • Downlink signal power requirement at the low noise amplifier input of UE 120;
[0069] · front-end loss of UE 120; or
[0070] • The desired downlink signal at the antenna port of the UE 120.
[0071] In some aspects, the UE 120 may use any single factor or any combination of the above factors to determine whether to apply a measurement offset. In some aspects, the UE 120 may determine whether to apply a measurement offset to each frequency or carrier in a plurality of frequencies or carriers. For example, the UE 120 may determine that a measurement offset is to be applied to one or more first frequencies or carriers in a plurality of frequencies or carriers, and the UE 120 may determine not to apply a measurement offset to one or more second frequencies or carriers in a plurality of frequencies or carriers. Thus, the UE 120 may selectively apply a measurement offset based at least in part on an estimated impact of interference on the plurality of frequencies or carriers.
[0072] As indicated by reference numeral 330, in some aspects, UE 120 may apply one or more measurement offsets. For example, UE 120 may determine one or more measurement offsets using one or more of the techniques described above, and UE 120 may apply the one or more measurement offsets to one or more corresponding neighbor measurements. In some aspects, UE 120 may not apply measurement offsets to neighbor measurements. For example, UE 120 may report neighbor measurements and measurement offsets, and BS 110 may apply or take measurement offsets into account. This may save computational resources of UE 120, and applying measurement offsets at UE 120 may simplify implementation of BS 110.
[0073] In some aspects, UE 120 may select a frequency based at least in part on an estimated impact of interference on the selected frequency satisfying a threshold, and UE 120 may report information identifying the selected frequency to BS 110. For example, UE 120 may report a range of resource blocks (e.g., corresponding to the selected frequency) that are subject to interference less than or equal to the threshold. In some aspects, BS 110 may use this selected frequency to configure a DC configuration for UE 120, as described below.
[0074] As indicated by reference numeral 350, BS 110 may determine a DC configuration for UE 120 using neighbor measurements and / or measurement offsets provided by UE 120. For example, BS 110 may use neighbor measurements to identify a best cell for UE 120 on a second frequency band. As another example, BS 110 may determine whether the best cell for UE 120 should be changed based at least in part on the measurement offset. As yet another example, BS 110 may reconfigure a serving cell for UE 120 on a first cell, etc., based at least in part on the measurement offset. As indicated by reference numeral 360, BS 110 may provide a DC configuration to UE 120. For example, BS 110 may configure a cell or carrier on a second frequency band for UE 120, may reconfigure a cell or carrier on a first frequency band for UE 120, may trigger a handover or radio resource control (RRC) connection procedure for a target cell or carrier on a second frequency band, etc.
[0075] In some aspects, BS 110 may determine a selected cell-carrier on the second frequency band based at least in part on the selected frequency of UE 120. For example, BS 110 may select a cell or carrier associated with the selected frequency. Thus, BS 110 may select a cell or carrier in a frequency range of the second frequency band based at least in part on an indication from UE 120 that the frequency range is associated with a threshold level of interference, thereby reducing interference to the second frequency band and improving throughput.
[0076] As indicated above, provide Figure 3 As an example. Other examples can be related to Figure 3 Different than described.
[0077] Figure 4 4 is a diagram illustrating an example process 400 performed, for example, by a UE in accordance with various aspects of the present disclosure. Example process 400 is an example of a UE (eg, UE 120, etc.) performing operations associated with neighbor measurement adjustment for dual connectivity.
[0078] like Figure 4 As shown in , in some aspects, process 400 may include determining, for a combination of a first frequency band and a second frequency band, whether to apply a measurement offset to neighbor measurements on the second frequency band based at least in part on an estimated impact of interference from the first frequency band on the second frequency band (block 410). For example, a UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) may determine, for a combination of a first frequency band and a second frequency band, whether to apply a measurement offset to neighbor measurements on the second frequency band based at least in part on an estimated impact of interference from the first frequency band on the second frequency band, as described above.
[0079] like Figure 4 As shown, in some aspects, process 400 may include selectively applying a measurement offset to a neighbor measurement based at least in part on whether the measurement offset is to be applied (block 420). Additionally or alternatively, process 400 may include selectively reporting the measurement offset to a base station associated with the neighbor measurement based at least in part on whether the measurement offset is to be applied (block 430). For example, the UE (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) may apply the measurement offset to the neighbor measurement based at least in part on determining that the measurement offset is to be applied. The measurement offset may be reported without applying the measurement offset to the neighbor measurement (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.). In some aspects, the UE may report the measurement offset and the measurement.
[0080] Process 400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0081] In a first aspect, the neighbor measurement is one of a plurality of neighbor measurements associated with a plurality of frequencies in a second frequency band, and determining whether to apply a measurement offset to the neighbor measurement on the second frequency band includes determining whether to apply the measurement offset to the plurality of neighbor measurements based at least in part on respective estimated effects of interference from the first frequency band on the plurality of frequencies.
[0082] In a second aspect, alone or in combination with the first aspect, process 400 includes applying a measurement offset to a first neighbor measurement of the plurality of neighbor measurements, wherein the measurement offset is not applied to a second neighbor measurement of the plurality of neighbor measurements.
[0083] In a third aspect, alone or in combination with one or more of the first and second aspects, process 400 includes (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) selecting a frequency from a plurality of frequencies based at least in part on a respective estimated impact of interference on the selected frequency satisfying a threshold; and reporting the selected frequency to a base station.
[0084] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 400 includes (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.) selectively applying a measurement offset to a neighbor measurement; and selectively reporting the measurement offset to a base station.
[0085] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, interference from the first frequency band to the second frequency band is associated with one or more of the following: harmonic effects from the first frequency band, intermodulation distortion effects from the first frequency band, modulation spurs from the first frequency band, or RF hardware design of the UE.
[0086] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, determining whether to apply a measurement offset comprises determining whether a filtering or isolation configuration of the UE can suppress interference to meet a threshold.
[0087] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, determining whether to apply a measurement offset comprises determining whether a signal processing technique of the UE can suppress interference to meet a threshold.
[0088] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, determining whether to apply a measurement offset is based at least in part on using historical information to determine a magnitude of an estimated impact of interference from the first frequency band on the second frequency band.
[0089] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, determining whether to apply a measurement offset is based at least in part on determining whether the second frequency band provides better throughput than the third frequency band taking into account an estimated impact of interference.
[0090] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, determining whether to apply a measurement offset is based at least in part on a traffic level associated with the second frequency band.
[0091] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the estimated impact of the interference is determined based at least in part on a link budget of the UE.
[0092] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 400 includes determining a measurement offset based at least in part on at least one of: a combination of a first frequency band and a second frequency band, an interference type of interference, an uplink resource block allocation of the first frequency band, a downlink resource block allocation of the second frequency band, a modified estimated impact of the interference after considering RF filter suppression or interference cancellation gain factors, a normalization factor for reduced sensitivity due to a difference in at least one of the channel bandwidth or number of layers of the second frequency band relative to one or more other frequency bands, an estimate of uplink traffic in a time window, a current traffic type of the UE, historical information, or interference from a cell not associated with the UE.
[0093] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 400 includes (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) receiving a dual connectivity configuration based at least in part on applying a measurement offset to a neighbor measurement or reporting the measurement offset to a base station.
[0094] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the first frequency band comprises a first set of frequency bands associated with one or more serving cells of the UE.
[0095] although Figure 4 Example blocks of process 400 are shown, but in some aspects process 400 may include Figure 4 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 400. Additionally or alternatively, two or more of the blocks of process 400 may be executed in parallel.
[0096] Figure 5is a diagram illustrating an example process 500, performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 500 is an example of a base station (eg, BS 110, etc.) performing operations associated with neighbor measurement adjustment for dual connectivity.
[0097] like Figure 5 As shown in , in some aspects, process 500 may include receiving from a UE at least one of the following: a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, wherein the measurement offset is based at least in part on an estimated impact of interference from a first frequency band on a second frequency band, and wherein the neighbor measurement is associated with a frequency on the second frequency band (block 510). For example, a base station (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, etc.) may receive from a user equipment (UE) at least one of the following: a neighbor measurement associated with a measurement offset, or information identifying a measurement offset for a neighbor measurement, as described above. The measurement offset may be based at least in part on an estimated impact of interference from a first frequency band on a second frequency band. The neighbor measurement may be associated with a frequency on the second frequency band.
[0098] like Figure 5 As further shown in FIG. 5 , in some aspects, process 500 may include configuring a dual connectivity configuration of the UE based at least in part on a neighbor measurement or a measurement offset (block 520). For example, a base station (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) may configure a dual connectivity configuration of the UE based at least in part on a neighbor measurement or a measurement offset, as described above.
[0099] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0100] In a first aspect, the frequency is one of a plurality of frequencies associated with a plurality of neighbor measurements, and the method further comprises receiving information identifying a selected frequency of the plurality of frequencies based at least in part on an estimated impact of interference on the selected frequency satisfying a threshold, wherein configuring the dual connectivity configuration is based at least in part on the information identifying the selected frequency.
[0101] In a second aspect, alone or in combination with the first aspect, interference from the first frequency band to the second frequency band is associated with one or more of: harmonic effects from the first frequency band, intermodulation distortion effects from the first frequency band, modulation spurs from the first frequency band, or RF hardware design of the UE.
[0102] In a third aspect, either alone or in combination with one or more of the first and second aspects, the measurement offset is based at least in part on at least one of: a combination of the first frequency band and the second frequency band, an interference type of interference, an uplink resource block allocation of the first frequency band, a downlink resource block allocation of the second frequency band, a modified estimated impact of the interference after considering RF filtering suppression or interference cancellation gain factors, a normalization factor for reduced sensitivity due to a difference in at least one of the channel bandwidth or number of layers of the second frequency band relative to one or more other configured frequency bands, an estimate of uplink traffic in a time window, a current traffic type of the UE, historical information, or interference from a cell not associated with the UE.
[0103] although Figure 5 Example blocks of process 500 are shown, but in some aspects process 500 may include Figure 5 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 500. Additionally or alternatively, two or more of the blocks of process 500 may be executed in parallel.
[0104] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.
[0105] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or a combination of hardware and software.
[0106] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.
[0107] Obviously, the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code - it should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.
[0108] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. Although each dependent claim listed below may be directly subordinate to a claim, the disclosure of various aspects includes each dependent claim combined with each other claim in the claims. The phrase "at least one" referring to the list of items refers to any combination of these 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 order of a, b and c).
[0109] Unless explicitly described as such, the elements, actions or instructions used herein should not be interpreted as critical or essential. In addition, as used herein, the articles "one" and "an" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.), and can be used interchangeably with "one or more". In the case of only one item being intended, the phrase "only one" or similar language is used. In addition, as used herein, the terms "having", "containing", "having" etc. are intended to be open terms. In addition, unless otherwise expressly stated, the phrase "based on" is intended to mean "based at least in part on".
Claims
1. A user equipment UE for wireless communication, the UE being configured to perform dual-connection DC communication using a first frequency band and a second frequency band, wherein the effect of interference from the first frequency band on neighbor measurement on the second frequency band is less than the effect of interference from the first frequency band on DC communication on the second frequency band, the UE comprising: a memory including instructions; and one or more processors configured to execute the instructions and cause the UE to: receiving, from a base station, a measurement configuration for performing neighbor measurements on the second frequency band; estimating an effect of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; determining, for a combination of the first frequency band and the second frequency band, whether to apply a measurement offset to the neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; as well as determining the measurement offset for the neighbor measurement based at least in part on whether the measurement offset is to be applied; as well as selectively applying the measurement offset to perform the neighbor measurements, and selectively reporting modified neighbor measurements to the base station based at least in part on the applied measurement offset; or The measurement offset and unmodified neighbor measurements are selectively reported to the base station.
2. The UE according to claim 1, wherein: The neighbor measurement is one of a plurality of neighbor measurements associated with a plurality of frequencies of the second frequency band, and wherein determining whether to apply a measurement offset to the neighbor measurement on the second frequency band comprises determining whether to apply the measurement offset to the plurality of neighbor measurements based at least in part on a corresponding estimated impact of interference from the first frequency band on the plurality of frequencies.
3. The UE according to claim 2, wherein: The one or more processors are further configured to apply the measurement offset to a first neighbor measurement of the plurality of neighbor measurements, wherein the measurement offset is not applied to a second neighbor measurement of the plurality of neighbor measurements.
4. The UE according to claim 2, wherein: The one or more processors are further configured to: selecting the frequency based at least in part on a respective estimated impact of interference on a frequency of the plurality of frequencies satisfying a threshold; and The selected frequency is reported to the base station.
5. The UE according to claim 1, wherein: Interference from the first frequency band to the second frequency band is associated with one or more of: The harmonic influence from the first frequency band, The intermodulation distortion effect from the first frequency band, modulation spurs from the first frequency band, or The UE's radio frequency hardware design.
6. The UE according to claim 1, wherein: The one or more processors are configured to determine whether a filtering configuration or an isolation configuration of the UE is capable of suppressing the interference to meet a threshold when determining whether to apply the measurement offset.
7. The UE according to claim 1, wherein: The one or more processors are configured to determine whether a signal processing technique of the UE is capable of suppressing the interference to meet a threshold when determining whether to apply the measurement offset.
8. The UE according to claim 1, wherein: The one or more processors are further configured to determine whether to apply the measurement offset based at least in part on determining a magnitude of an estimated impact of interference from the first frequency band on the second frequency band using historical information.
9. The UE according to claim 1, wherein: The one or more processors are further configured to determine whether to apply the measurement offset based at least in part on a determination of whether the second frequency band provides better throughput than a third frequency band taking into account the estimated impact of the interference.
10. The UE according to claim 1, wherein: The one or more processors are further configured to determine whether to apply the measurement offset based at least in part on a traffic level associated with the second frequency band.
11. The UE according to claim 1, wherein: The one or more processors are further configured to determine the estimated impact of the interference based at least in part on a link budget of the UE.
12. The UE according to claim 1, wherein: The one or more processors are further configured to determine the measurement offset based at least in part on at least one of: said combination of said first frequency band and said second frequency band, the interference type of the interference, uplink resource block allocation of the first frequency band, downlink resource block allocation of the second frequency band, a modified estimated impact of the interference after taking into account radio frequency filtering suppression or interference cancellation gain factors, a normalization factor for desensitization caused by a difference in at least one of a channel bandwidth or a number of layers of the second frequency band relative to one or more other frequency bands, An estimate of the uplink traffic in the time window, The current service type of the UE, Historical information, or Interference from cells not associated with the UE.
13. The UE according to claim 1, wherein: The one or more processors are further configured to: Receiving a dual connectivity configuration based at least in part on applying the measurement offset to the neighbor measurement or reporting the measurement offset to the base station.
14. The UE according to claim 1, wherein: The first frequency band includes a first set of frequency bands associated with one or more serving cells of the UE.
15. The UE according to claim 1, further comprising: A transmitter reports the measurement offset to the base station via the transmitter.
16. A base station for wireless communication, comprising: a memory including instructions; and one or more processors configured to execute the instructions and cause the base station to: Sending a measurement configuration for performing neighbor measurement on a first frequency band and a second frequency band to a user equipment UE configured to perform dual-connectivity DC communication using the second frequency band, wherein the impact of interference from the first frequency band on the neighbor measurement on the second frequency band is less than the impact of interference from the first frequency band on the DC communication on the second frequency band; receiving, from the UE, an unmodified neighbor measurement and a measurement offset determined by the UE for the neighbor measurement, or a modified neighbor measurement obtained by the UE by applying the measurement offset when performing the neighbor measurement; as well as A DC configuration of the UE is configured based at least in part on the modified neighbor measurement or based at least in part on the unmodified neighbor measurement and the measurement offset.
17. The base station according to claim 16, wherein: The frequency is one of a plurality of frequencies associated with a plurality of neighbor measurements, and wherein the one or more processors are further configured to: Based at least in part on an estimated impact of interference on a selected frequency of the plurality of frequencies satisfying a threshold, information identifying the selected frequency is received, wherein configuring the dual connectivity configuration is based at least in part on the information identifying the selected frequency.
18. The base station according to claim 16, wherein: The interference from the first frequency band to the second frequency band is associated with at least one of: The harmonic influence from the first frequency band, The intermodulation distortion effect from the first frequency band, modulation spurs from the first frequency band, or The UE's radio frequency hardware design.
19. The base station according to claim 16, wherein: The measured offset is based on at least one of: a combination of the first frequency band and the second frequency band, the interference type of the interference, uplink resource block allocation of the first frequency band, downlink resource block allocation of the second frequency band, a modified estimated impact of the interference after taking into account radio frequency filtering suppression or interference cancellation gain factors, a normalization factor for desensitization due to a difference in at least one of a channel bandwidth or a number of layers of the second frequency band relative to one or more other configured frequency bands, An estimate of the uplink traffic in the time window, The current service type of the UE, Historical information, or Interference from cells not associated with the UE.
20. The base station according to claim 16, further comprising: A receiver is provided for receiving, via the receiver, the modified neighbor measurement from the UE.
21. A method of wireless communication performed at a user equipment (UE), the UE being configured to perform dual-connectivity (DC) communication using a first frequency band and a second frequency band, wherein interference from the first frequency band has less impact on neighbor measurements on the second frequency band than interference from the first frequency band has on DC communication on the second frequency band, the method comprising: receiving, from a base station, a measurement configuration for performing neighbor measurements on the second frequency band; estimating an effect of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; determining, for a combination of the first frequency band and the second frequency band, whether to apply a measurement offset to the neighbor measurement on the second frequency band based at least in part on an estimated impact of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; as well as determining the measurement offset for the neighbor measurement based at least in part on whether the measurement offset is to be applied; as well as selectively applying the measurement offset to perform the neighbor measurements, and selectively reporting modified neighbor measurements to the base station based at least in part on the applied measurement offset; or The measurement offset and unmodified neighbor measurements are selectively reported to the base station.
22. The method according to claim 21, wherein: The neighbor measurement is one of a plurality of neighbor measurements associated with a plurality of frequencies of the second frequency band, and wherein determining whether to apply a measurement offset to the neighbor measurement on the second frequency band is based at least in part on a respective estimated impact of interference from the first frequency band on the plurality of frequencies to determine whether to apply the measurement offset to the plurality of neighbor measurements.
23. The method according to claim 22, further comprising: The measurement offset is applied to a first neighbor measurement of the plurality of neighbor measurements, wherein the measurement offset is not applied to a second neighbor measurement of the plurality of neighbor measurements.
24. The method of claim 22, further comprising: selecting the frequency based at least in part on a respective estimated impact of interference on a frequency of the plurality of frequencies satisfying a threshold; as well as The selected frequency is reported to the base station.
25. The method of claim 21, further comprising: When determining whether to apply the measurement offset, it is determined whether the signal processing technology of the UE is capable of suppressing the interference to meet a threshold.
26. The method of claim 21, further comprising: The estimated impact of the interference is determined based at least in part on a link budget of the UE.
27. The method of claim 21, further comprising: Receiving a dual connectivity configuration based at least in part on applying the measurement offset to the neighbor measurement or reporting the measurement offset to the base station.
28. A method of wireless communication performed at a base station, comprising: Sending a measurement configuration for performing neighbor measurement on a first frequency band and a second frequency band to a user equipment UE configured to perform dual-connectivity DC communication using the second frequency band, wherein the impact of interference from the first frequency band on the neighbor measurement on the second frequency band is less than the impact of interference from the first frequency band on the DC communication on the second frequency band; receiving, from the UE, an unmodified neighbor measurement and a measurement offset determined by the UE for the neighbor measurement, or a modified neighbor measurement obtained by the UE by applying the measurement offset when performing the neighbor measurement; as well as A DC configuration of the UE is configured based at least in part on the modified neighbor measurement or based at least in part on the unmodified neighbor measurement and the measurement offset.
29. The method according to claim 28, wherein: The frequency is one of a plurality of frequencies associated with a plurality of neighbor measurements, and wherein the method further comprises: Based at least in part on an estimated impact of interference on a selected frequency of the plurality of frequencies satisfying a threshold, information identifying the selected frequency is received, wherein configuring the dual connectivity configuration is based at least in part on the information identifying the selected frequency.
30. The method of claim 28, wherein: The measured offset is based on at least one of: a combination of the first frequency band and the second frequency band, the interference type of the interference, uplink resource block allocation of the first frequency band, downlink resource block allocation of the second frequency band, a modified estimated impact of the interference after taking into account radio frequency filtering suppression or interference cancellation gain factors, a normalization factor for desensitization due to a difference in at least one of a channel bandwidth or a number of layers of the second frequency band relative to one or more other configured frequency bands, An estimate of the uplink traffic in the time window, The current service type of the UE, Historical information, or Interference from cells not associated with the UE.
31. A user equipment UE for wireless communication, the UE being configured to perform dual-connectivity DC communication using a first frequency band and a second frequency band, wherein the impact of interference from the first frequency band on neighbor measurement on the second frequency band is less than the impact of interference from the first frequency band on DC communication on the second frequency band, the UE comprising: means for receiving, from a base station, a measurement configuration for performing neighbor measurements on the second frequency band; means for estimating the effect of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; means for determining, for a combination of the first frequency band and the second frequency band, whether to apply a measurement offset to the neighbor measurements on the second frequency band based at least in part on an estimated impact of interference from the first frequency band to the second frequency band on DC communications on the second frequency band; as well as means for determining the measurement offset for the neighbor measurement based at least in part on whether the measurement offset is to be applied; as well as means for selectively applying the measurement offset to perform the neighbor measurements, and selectively reporting modified neighbor measurements to the base station based at least in part on the applied measurement offset; or Means for selectively reporting the measurement offset and unmodified neighbor measurements to the base station.
32. A base station for wireless communication, comprising: A component for sending a measurement configuration for performing neighbor measurement on a user equipment UE configured to use a first frequency band and a second frequency band for dual-connectivity DC communication on the second frequency band, wherein the impact of interference from the first frequency band on the neighbor measurement on the second frequency band is less than the impact of interference from the first frequency band on the DC communication on the second frequency band; means for receiving from the UE an unmodified neighbor measurement and a measurement offset determined by the UE for the neighbor measurement, or a modified neighbor measurement obtained by the UE by applying the measurement offset when performing the neighbor measurement; as well as Means for configuring a DC configuration of the UE based at least in part on the modified neighbor measurement or based at least in part on the unmodified neighbor measurement and the measurement offset.
33. A non-transitory computer-readable medium having instructions stored thereon, wherein when the instructions are executable by one or more processors, the one or more processors are caused to perform the method of any one of claims 21-30.
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