Method for simultaneous reception of sss and other signals

By introducing priority rules and configuring measurement windows in the UE, the problem of UEs simultaneously receiving signals from different types of base stations in the high-frequency band is solved, improving signal reception efficiency and power saving, and enhancing the performance of the wireless communication system.

CN116171622BActive Publication Date: 2026-04-17APPLE INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
APPLE INC
Filing Date
2021-09-24
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult for user equipment (UE) to simultaneously receive synchronization signal blocks (SSBs) and other downlink signals from different types of base stations in high-frequency bands, especially in inter-cell mobility and multiple transmit/receive point (TRP) scenarios, where UEs struggle to process signals from different QCL-TypeD interest points simultaneously.

Method used

By introducing priority rules and configuring measurement windows using higher-layer signaling, the UE can determine priorities and measurement timing in different scenarios, ensuring that it can simultaneously receive SSB and other downlink signals.

Benefits of technology

It improves the UE's downlink signal reception efficiency in high-frequency bands, reduces unnecessary signal processing, saves power, extends battery life, and enhances the performance of wireless communication systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to methods for simultaneous reception of synchronization signal blocks (SSBs) and other signals. Methods of simultaneous reception of downlink signals are described in which analog beamforming is used to increase the link budget between a base station and a user equipment (UE). Alternatives within these methods include the UE determining which SSB to receive when there are multiple SSBs from different cells in a slot, and determining whether there are other signals in the same symbol as the selected SSB based on the type of signal and the function of the SSB. In the presence of another downlink signal channel state information-reference signal (CSI-RS) or physical downlink shared channel (PDSCH) from another cell, the UE selects the corresponding quasi co-location (QCL) assumption to receive the signal. Optionally, the UE can report whether it can support one or two QCL-TypeD at a time and whether it supports SSBs in different cells multiplexed in overlapping symbols.
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Description

Technical Field

[0001] Various aspects can typically involve the field of wireless communication. Summary of the Invention

[0002] The methods described herein include aspects of user equipment (UE). The UE includes a radio frequency (RF) receiver and is configured to simultaneously receive a first downlink signal and a second downlink signal via antennas from a first base station and a second base station, respectively. The first base station and the second base station have a first type and a second type, which are serving cell, assistant cell, or candidate cell. The UE also includes processing circuitry coupled to the RF receiver, wherein the processing circuitry is configured to measure the first downlink signal based on rules to support communication with the first base station, wherein the first downlink signal includes a first synchronization signal block (SSB) signal.

[0003] The method also includes a method comprising the steps of: a user equipment (UE) simultaneously receiving a first downlink signal and a second downlink signal from a first base station and a second base station, respectively, wherein the first base station and the second base station have a first type and a second type, the type being a serving cell, an assistant cell, or a candidate cell. The method further includes the step of measuring the first downlink signal based on rules to support communication with the first base station, wherein the first downlink signal includes a first synchronization signal block (SSB) signal.

[0004] The methods described herein include aspects using a base station. The base station includes processing circuitry configured to encode downlink signals, wherein the downlink signals include a first synchronization signal block (SSB) signal and measurement window information received from higher-layer signaling. The base station also includes a radio frequency (RF) transmitter coupled to the processor circuitry, the RF transmitter being configured to transmit the downlink signals to user equipment (UE), wherein the measurement window information indicates to the UE when to measure the SSB signal, and the base station is a serving cell or an assistant cell.

[0005] The method also includes a step of receiving measurement window information via higher-layer signaling at a base station. The method further includes a step of encoding a downlink signal, wherein the downlink signal includes a first synchronization signal block (SSB) signal and the measurement window information. The method further includes a step of transmitting the downlink signal to a user equipment (UE), wherein the measurement window information indicates to the UE when to measure the SSB signal, and that the base station is a serving cell or an assistant cell.

[0006] The content of this invention is provided for illustrative purposes only, to provide an understanding of the subject matter described herein. Therefore, the features described above are merely illustrative and should not be construed as narrowing the scope or substance of the subject matter of this disclosure. Other features, aspects, and advantages of this disclosure will become apparent from the following detailed description, the accompanying drawings, and the claims. Attached Figure Description

[0007] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate the present disclosure and, together with the specification, further serve to explain the principles of the disclosure and enable those skilled in the art to make and use the disclosure.

[0008] Figure 1 An exemplary system is shown that implements some aspects of this disclosure for simultaneously receiving SSB and other downlink signals.

[0009] Figure 2 A block diagram of an exemplary system for an electronic device to simultaneously receive SSB and other downlink signals, according to some aspects of this disclosure, is shown.

[0010] Figure 3 This illustrates a wireless architecture for inter-cell mobility scenarios according to various aspects of this disclosure.

[0011] Figure 4 This invention illustrates a wireless architecture for inter-cell multiple transmitter / receiver point (TRP) mobility scenarios according to various aspects of this disclosure.

[0012] Figure 5 The diagram illustrates the measurement window configuration for three cells, cell 1, cell 2, and cell 3, according to some aspects of this disclosure.

[0013] Figure 6 The diagram illustrates the measurement window configurations for two cells, Cell 1 (candidate cell) and Cell 2 (serving cell), according to various aspects of this disclosure.

[0014] Figure 7 A flowchart is shown of a method 700 for simultaneously receiving SSB and other downlink signals according to various aspects of this disclosure.

[0015] Figure 8 It is an exemplary computer system for implementing some aspects or parts thereof.

[0016] This disclosure is described with reference to the accompanying drawings. In the drawings, the same reference numerals generally denote the same or similarly functional elements. Additionally, the leftmost numeral of the reference numerals generally appears first in the drawings. Detailed Implementation

[0017] Figure 1An exemplary system for simultaneously receiving SSB and other downlink signals is illustrated, based on some aspects of this disclosure. The exemplary system 100 is provided for illustrative purposes only and is not intended to limit the aspects disclosed. System 100 may include, but is not limited to, network nodes (e.g., base stations, such as eNB, gNB) 101 and 103 and electronic devices (e.g., UE) 105. Electronic device 105 (hereinafter referred to as UE 105) may include electronic devices configured to operate based on a variety of wireless communication technologies. These technologies may include, but are not limited to, technologies based on 3GPP standards. For example, UE 105 may be configured to operate using 3GPP standards. UE 105 may include, but is not limited to, wireless communication devices, smartphones, laptops, desktop computers, tablets, personal assistants, monitors, televisions, wearable devices, Internet of Things (IoT) devices, vehicle communication devices, etc. Network node 101 (referred to herein as a base station) may include nodes configured to operate based on a variety of wireless communication technologies, such as, but not limited to, technologies based on 3GPP standards.

[0018] According to some aspects, UE 105 and base stations 101 and 103 are configured to simultaneously receive SSB and other downlink signals. According to some aspects, UE 105 is configured to simultaneously receive SSB and other downlink signals. According to some aspects, UE 105 can connect to base station 101 (e.g., serving cell) and communicate with that base station using carrier 107, from which UE 105 receives multiple downlink signals.

[0019] According to some aspects, UE 105 may measure one or more carriers (e.g., carrier 107) used to communicate with base station 101 (e.g., serving cell) to perform simultaneous reception of SSB and other downlink signals.

[0020] Figure 2 A block diagram of an exemplary system 200 for an electronic device that simultaneously receives SSB and other downlink signals, according to some aspects of this disclosure, is shown. System 200 can be any electronic device of system 100 (e.g., base stations 101-103, UE 105). System 200 includes a processor 210, one or more transceivers 220a-220n, communication infrastructure 240, memory 250, operating system 252, application program 254, and antenna 260. The illustrated system is provided as an exemplary part of system 200, and system 200 may include other circuitry and subsystems. Furthermore, although the system of system 200 is shown as separate components, aspects of this disclosure may include any combination of these components, fewer components, or more components.

[0021] Memory 250 may include random access memory (RAM) and / or cache, and may include control logic (e.g., computer software) and / or data. Memory 250 may include other storage devices or memories, such as, but not limited to, hard disk drives and / or removable storage devices / cells. According to some examples, operating system 252 may be stored in memory 250. Operating system 252 may manage data transfer from memory 250 and / or one or more applications 254 to processor 210 and / or one or more transceivers 220a-220n. In some examples, operating system 252 may hold one or more network protocol stacks (e.g., Internet Protocol stack, cellular protocol stack, etc.) that may include multiple logical layers. At the corresponding layer of the protocol stack, operating system 252 includes control mechanisms and data structures to perform the functions associated with that layer.

[0022] According to some examples, application 254 may be stored in memory 250. Application 254 may include applications used by users of wireless system 200 (e.g., user applications). Applications in application 254 may include, but are not limited to, applications such as, but not limited to, wireless streaming, video streaming, remote control, and / or other user applications.

[0023] System 200 may also include communication infrastructure 240. Communication infrastructure 240 provides communication between, for example, processor 210, one or more transceivers 220a-220n, and memory 250. In some implementations, communication infrastructure 240 may be a bus.

[0024] The processor 210, together with the instructions stored in the memory 250, enables the system 200 of the system 100 to operate as described herein for the mechanism of simultaneously receiving SSB and other downlink signals.

[0025] One or more transceivers 220a-220n transmit and receive communication signals that support mechanisms for performing time and / or frequency tracking based on those TRS configurations, and may be coupled to antenna 260. Antenna 260 may include one or more antennas that may be the same or different types. One or more transceivers 220a-220n allow system 200 to communicate with other devices that may be wired and / or wireless. In some examples, one or more transceivers 220a-220n may include processors, controllers, radio components, sockets, plugs, buffers, and similar circuitry / devices for connecting to and communicating over a network. According to some examples, one or more transceivers 220a-220n may include one or more circuitry for connecting to and communicating over wired and / or wireless networks.

[0026] According to some aspects, one or more transceivers 220a-220n may include a cellular subsystem, a WLAN subsystem, and / or Bluetooth. ™ The subsystems each include their own radio transceivers and protocols, as those skilled in the art will understand based on the discussion provided herein. In some specific implementations, one or more transceivers 220a-220n may include more or fewer systems for communicating with other devices.

[0027] In some examples, one or more transceivers 220a-220n may include one or more circuits (including a WLAN transceiver) for enabling connectivity and communication via a WLAN network (such as, but not limited to, networks based on the standards described in IEEE 802.11). Alternatively, one or more transceivers 220a-220n may include circuits for enabling, for example, Bluetooth-based... ™ Protocol, Bluetooth ™ Low power protocol or Bluetooth ™ One or more circuits for low-power remote protocol connectivity and communication (including Bluetooth) ™ (Transceiver). For example, transceiver 220n may include Bluetooth. ™ Transceiver.

[0028] Additionally, one or more transceivers 220a-220n may include one or more circuits (including cellular transceivers) for connecting to and communicating over a cellular network. Cellular networks may include, but are not limited to, 3G / 4G / 5G networks, such as Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), etc. For example, one or more transceivers 220a to 220n may be configured to operate according to one or more of the 3GPP standards Rel-15, Rel-16, Rel-17, or other versions.

[0029] Depending on some aspects, processor 210, alone or in combination with computer instructions stored in memory 250 and / or one or more transceivers 220a to 220n, implements the simultaneous reception of SSB and other downlink signals discussed herein. For example, transceiver 220a can receive signals via a first carrier (e.g., Figure 1 The carrier 107) enables connection and communication. In this example, transceiver 220a and / or transceiver 220b can enable signaling that receives TRS configuration information (e.g., Figure 1(Carrier 109). Additionally, or alternatively, the wireless system 200 may include a transceiver configured to operate on different carriers. According to some examples, the processor 210 may be configured to control a transceiver to switch between different carriers. Although the operations discussed herein are relative to the processor 210, it should be noted that the processor 210 may perform these operations alone or in combination with computer instructions stored in memory 250 and / or one or more transceivers 220a-220n.

[0030] As wireless systems continue to evolve, the impact of wireless communication protocol requirements remains a persistent challenge in order to continuously improve their performance and user experience. For example, improvement considerations include enhancing user equipment (UE) power consumption and saving power to extend battery life. Specifically, when the UE is in idle and / or inactive mode, the impact of enhancing the UE's wireless communication system is a crucial consideration related to power saving and system performance. As part of understanding this impact, reducing unnecessary paging enhancements for UE paging reception without affecting the traditional UE is also a relevant consideration.

[0031] Overview of SSB and other downlink signal reception

[0032] In higher frequency bands, such as the FR2 band (with frequencies exceeding 6 GHz), analog beamforming is widely used to increase link budget. Analog beamforming is utilized on both the base station (e.g., gNB) and UE sides. In implementations, the UE can use a single analog beam to receive downlink signals across frequency bands or within a band group, using component carriers (CC). The term "band group" refers to frequency bands sharing the same antenna. To enable the UE to simultaneously receive downlink signals, the following four cases (Case 1, Case 2, Case 3, and Case 4) are defined.

[0033] In the first scenario, Case 1, the two downlink signals are the Synchronization Signal Block (SSB) and the Physical Downlink Shared Channel (PDSCH). In this case, the base station (e.g., gNB) should ensure that both the SSB and PDSCH signals are of the same Quasi-Co-address Type D (QCL-Type D) – a spatial receiver parameter – as defined in 3GPP Technical Specification TS 38.214, as follows. If the UE receives the demodulation reference signal (DM-RS) and the SS / PBCH block of the PDSCH in the same Orthogonal Frequency Division Multiplexing (OFDM) symbol, then where “type D” applies, the UE can assume that the DM-RS and SS / PBCH blocks are quasi-co-addressed via “type D”. Note that this approach can be extended to cover both the SSB and the Physical Downlink Control Channel (PDCCH) signals in the same way.

[0034] In the second scenario, case 2, the two downlink signals are the SSB and the Channel State Information-Reference Signal (CSI-RS). In this case, the base station (e.g., gNB) should ensure that the QCL-TypeD (spatial Rx parameter) of both the SSB and CSI-RS are identical, as defined in 38.214 below. If the UE configures the CSI-RS resource in the same OFDM symbol as the SS / PBCH block, then where “QCL-TypeD” applies, the UE may assume that the CSI-RS and the Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block are quasi-co-located via “QCL-TypeD”.

[0035] In the third scenario, case 3, the two signals are SSBs used for Radio Link Monitoring (RLM), Beam Failure Detection (BFD), and Candidate Beam Detection (CBD), as well as other signals. For these signals, the error condition is as defined in 3GPP Technical Specification TS 38.133: It is expected that on the BFD-RS symbol to be measured for Beam Failure Detection, the UE will not transmit PUCCH / PUSCH / SRS, nor will it receive PDCCH / PDSCH / CSI-RS for Tracking / CSI-RS for CQI. It is also expected that the UE will not transmit PUCCH / PUSCH or receive PDCCH / PDSCH on the reference symbol to be measured for Candidate Beam Detection.

[0036] In the fourth case, case 4, the two signals are SSB and SSB. This case is undefined. Currently, cases 1 through 4 only define signals from the same cell associated with the same Physical Cell ID (PCI).

[0037] Architecture of inter-cell mobility

[0038] In Release 17 and subsequent 3GPP specifications, inter-cell mobility centered on multiple transmit / receive points (TRP) and Layer 1 / L2 (L1 / L2) was considered. In the scenario of multiple TRP operation, the UE can communicate with two cells simultaneously, and the UE needs to measure downlink signals from two or more cells to maintain communication. In another scenario of L1 / L2-centered inter-cell mobility operation, the UE may only need to communicate with one cell at a time, but the UE still needs to measure downlink signals from two or more cells.

[0039] For both operations, the base station (e.g., gNB) can configure the UE to measure the Layer 1 Reference Signal Received Power (L1-RSRP) based on the SSBs in different cells. Note that SSBs from different cells may or may not be multiplexed in overlapping symbols.

[0040] Figure 3This diagram illustrates a radio architecture for an inter-cell mobility scenario according to various aspects of this disclosure. Near UE 310, there exists cell 1 as serving cell 320, cell 2 as candidate cell 340, and cell 3 as candidate cell 330. Serving cell 320 transmits downlink signal 350 for reception by UE 310. Candidate cell 340 transmits downlink signal 370 for possible reception by UE 310. Candidate cell 330 also transmits downlink signal 360 for possible reception by UE 310.

[0041] Figure 4 This illustration shows a radio architecture for an inter-cell multiple transmit / receive point (TRP) mobility scenario according to various aspects of this disclosure. Near UE 410, there exists a cell 1 as serving cell 420, a cell 2 as assistant cell 440, and a cell 3 as candidate cell 430. Serving cell 420 transmits downlink signal 450 for reception by UE 410. Assistant cell 440 transmits downlink signal 470 for reception by UE 410. Candidate cell 430 also transmits downlink signal 460, which may be received by UE 410. In this disclosure, the term "assistant cell" is used to describe a cell that only transmits or receives private signals from the UE. Therefore, an "assistant cell" differs from a "serving cell" because a "serving cell" transmits all public and private signals to the UE. A "candidate cell" only transmits some measurement-related signals to the UE.

[0042] The challenge with the three different cell types is that the four scenarios (Scenario 1 to 4) mentioned above need to be enhanced to accommodate each scenario, because in each scenario, different channels / signals from different cells will simultaneously affect the UE. Specifically, the UE may or may not be able to simultaneously receive signals based on different QCL-TypeD concerns. To address this challenge, each of the following scenarios needs to be considered: (a) Scenario 1, where the SSB signal originates from the serving cell (e.g., serving cell 420) and the second signal originates from the assistant cell (e.g., assistant cell 440); (b) Scenario 2, where the SSB signal originates from the serving cell (e.g., serving cell 420) but the second signal originates from the candidate cell (e.g., candidate cell 430); (c) Scenario 3, where the SSB signal originates from the assistant cell (e.g., assistant cell 440) and the second signal originates from the serving cell (e.g., serving cell 420); (d) Scenario 4, where the SSB signal originates from the assistant cell (e.g., assistant cell 440) and the second signal originates from the assistant cell (e.g., assistant cell 440); (e) Scenario 5, where the SSB signal originates from the candidate cell (e.g., candidate cell 440) and the second signal originates from the serving cell (e.g., serving cell 420); and (f) Scenario 6, where the SSB signal originates from the candidate cell (e.g., candidate cell 430) and the second signal originates from the assistant cell (e.g., assistant cell 440).

[0043] Cases 1 and 2

[0044] Turning to scenarios 1 and 2, it should be noted that scenario 2 is not considered for these two scenarios. For a UE that can only support one QCL-TypeD at a time, the base station (e.g., gNB) should ensure that the same QCL-TypeD used for SSB and PDSCH / CSI-RS / PDCCH is associated with the same PCI, as in scenario 4. When the SSB signal and the PDSCH / CSI-RS / PDCCH signal are associated with different PCIs, as in scenarios 1, 3, 5, and 6, there are two possible options. In the first option, option 1, this is considered an error case, and scheduling restrictions should be introduced to exclude this type of scenario. In the second option, option 2, a priority rule can be introduced, for example, allowing the UE to discard one of the two signals: the SSB signal or the PDSCH / CSI-RS / PDCCH signal. The priority decision can be determined by the cell type associated with these signals. For example, the serving cell can have a higher priority than the assistant cell, and the assistant cell can have a higher priority than the candidate cell.

[0045] As should be noted above, Option 1 or Option 2 can be applied to each of the different scenarios, where different options can be selected for a scenario independently of any other choice made for any other scenario.

[0046] For a UE that supports two QCL-TypeDs simultaneously (e.g., concurrently), the base station (e.g., gNB) should ensure that the same QCL-TypeD is used for both the SSB signal and the PDSCH / CSI-RS / PDCCH signal associated with the same PCI, as in scenario 4. For scenarios 1 and 3, the UE can receive both the SSB signal and the PDSCH / CSI-RS / PDCCH signal associated with different PCIs. For scenarios 5 and 6, options 1 and 2 above can be used in the same manner, as described above.

[0047] For the following discussion, it is assumed that the UE can report its ability to support two different QCL-TypeD signals at once (e.g., simultaneously). In this case, the associated cell of the PDSCH / CSI-RS signal can be determined by the quasi-co-addressing (quasi-co-addressing (QCLed)) configuration of the signal. Here, if the PDSCH / CSI-RS / PDCCH signal is configured to be quasi-co-addressed directly or indirectly with an SSB signal from cell "X", then the PDSCH / CSI-RS / PDCCH signal is considered to be associated with cell "X". Conversely, if the PDSCH / CSI-RS / PDCCH signal is not quasi-co-addressed with any SSB signal, then the PDSCH / CSI-RS / PDCCH signal is considered to be quasi-co-addressed with the serving cell or a cell with a scheduled PDCCH.

[0048] Case 3

[0049] Moving on to scenario 3, note again that scenario 2 is not considered in this case.

[0050] For a UE that can only support one QCL-TypeD at a time, it is expected that on symbols with SSBs for Beam Failure Detection (BFD) / Radio Link Monitoring (RLM) / Candidate Beam Detection (CBD) signals, the UE will not transmit Physical Uplink Control Channel (PUCCH) / Physical Uplink Shared Channel (PUSCH) / Sound Reference Signal (SRS) signals, nor will it receive Physical Downlink Control Channel (PDCCH) / Physical Downlink Shared Channel (PDSCH) / Channel State Information Reference Signal for Tracking (CSI-RS) / CSI-RS Signal for Channel Quality Information (CQI).

[0051] For a UE that can support two QCL-Type D signals simultaneously (e.g., at the same time), it is expected that the UE will not transmit PUCCH / PUSCH / SRS signals, nor will it receive PDCCH / PDSCH / CSI-RS signals for tracking / CQI on symbols where the SSBs used for BFD / RLM / CBD have the same PCI, as in scenario 4. For scenarios 1 and 3, the UE can receive both the SSBs for BFD / RLM / CBD and the PDSCH / CSI-RS signals associated with different Physical Cell ID (PCI) values.

[0052] For scenarios 5 and 6 (SSB only for CBD), the following options are provided based on downlink signal reception. Option 1 is considered an error condition. For option 2, the UE can receive two signals. For option 3, the UE can report whether it can receive two signals using one of three alternatives: UE capability, Media Access Control (MAC) Control Element (CE), or Uplink Control Information (UCI). When reported by MAC CE or UCI, the UE can indicate the cells to be received simultaneously. For example, if the UE uses different panels to receive different cells, it can receive those cells simultaneously; otherwise, the UE can receive signals from only one cell.

[0053] Case 4 - UE supports one QCL-TypeD at a time

[0054] Moving to Case 4, it should be noted that Case 4 only considers scenarios 1, 2, 3, 5, and 6. For a UE that can only support one QCL-TypeD at a time, the following options are provided. For the first option, Option 1, this is considered an error case. Alternatively, a UE capability can be introduced to indicate whether it supports overlapping SSBs. In the second option, Option 2, a priority rule is introduced, where the rule considers the SSB's functionality and / or cell type to evaluate priority. In some exemplary implementations, the serving cell may have a higher priority than the assistant cell, which in turn may have a higher priority than the candidate cell. In other exemplary implementations, priorities are defined such that an SSB signal for BFD has a higher priority than an SSB signal for RLM, an SSB signal for RLM has a higher priority than an SSB signal for CBD, an SSB signal for CBD has a higher priority than an SSB signal for BM, and an SSB signal for BM has a higher priority than an SSB signal without any configured functionality.

[0055] In the third option, option 3, the selection of the SSB signal to be received can be configured via higher-layer signaling (such as RRC or MAC CE). Here, the base station (e.g., gNB) can configure measurement windows / gapes for the cell or SSBs within the cell. Measurement windows can provide different indications. In one indication, the measurement window indicates when the UE should measure the SSB signal. In another indication, the measurement gap indicates when the UE should not measure the SSB signal. For each measurement window / gap, the gNB can provide some or all of the following information: periodicity and offset, cell index, and / or SSB index.

[0056] In the fourth option, i.e., option 4, the UE reports the cell-specific measurement behavior to the gNB via UE capabilities, MAC CE, or UCI, with parameters similar to those described in option 3.

[0057] See option 3. Figure 5 This illustrates the measurement window configuration for three cells, Cell 1, Cell 2, and Cell 3, according to some aspects of this disclosure. Figure 5 In this study, the measurement windows for cells 1, 2, and 3 are configured to have a periodicity of 60 time slots, with corresponding offsets of 1, 21, and 41 time slots for cells 1, 2, and 3, respectively.

[0058] Case 4 - UE supports two QCL-TypeD at a time

[0059] For a UE that can support two QCL-TypeD cells simultaneously, the UE can receive signals from both the serving cell and the assistant cell. In the first option, Option 1, multiplexing SSBs from the serving / assistant cell and the candidate cell in overlapping symbols is considered an error condition. Alternatively, a UE capability can be introduced to indicate whether it supports this condition. In the second option, Option 2, a priority rule is introduced that considers the SSB's functionality and / or cell type.

[0060] In some exemplary embodiments, the serving cell or assistant cell may have a higher priority than the candidate cell. In other exemplary embodiments, the priority is defined as follows: the SSB signal for BFD has a higher priority than the SSB signal for RLM, the SSB signal for RLM has a higher priority than the SSB signal for CBD, the SSB signal for CBD has a higher priority than the SSB signal for BM, and the SSB signal for BM has a higher priority than the SSB signal without any configured function.

[0061] In the third option, option 3, the timing for measuring the SSB of a candidate cell to be received can be configured via higher-layer signaling such as Radio Resource Control (RRC) or MAC CE. The base station (e.g., gNB) can configure measurement windows for candidate cells or SSBs within candidate cells. Measurement windows can provide different indications. In one indication, the measurement window indicates when the UE should measure the SSB signal. In another indication, the measurement gap indicates when the UE should not measure SSB signals in other cells. As an extension of this latter indication, the UE does not receive any signals from other cells. For each measurement window / gap, the gNB can provide some or all of the following information: periodicity and offset, cell index, and / or SSB index.

[0062] In the fourth option, i.e., option 4, the UE reports the measurement behavior for the candidate cell to the base station (e.g., gNB) via UE capabilities, MAC CE, or UCI, with parameters similar to those described in option 3.

[0063] See option 3. Figure 6 This illustrates the measurement window configurations for two cells, Cell 1 (candidate cell) and Cell 2 (serving cell), according to various aspects of this disclosure. Figure 6 In this context, the measurement windows for cells 1 and 2 are configured to be periodic with 60 time slots and an offset of 1 time slot.

[0064] Based on the above discussion, the general procedure for determining the signal to be received simultaneously is as follows: In the first step, i.e., step 1 (optional), the UE reports whether it can support one or two QCL-TypeD signals simultaneously and whether it supports SSBs from different cells multiplexed in overlapping symbols. In the second step, i.e., step 2 (see case 4 above for more details), when multiple SSBs from different cells exist in the time slot, the UE determines the SSB to be received. In the third step, i.e., step 3 (see case 3 above for more details), the UE determines whether other signals exist in the same symbol as the selected SSB based on the signal type and the function of the SSB. In the fourth step, i.e., step 4 (see cases 1 and 2 above for more details), if other downlink signals (CSI-RS or PDSCH) from another cell exist, the UE selects the corresponding QCL assumption to receive the signal.

[0065] Figure 7A flowchart of a method 700 for simultaneously receiving an SSB and other downlink signals according to various aspects of this disclosure is shown. Step 710 includes simultaneously receiving a first downlink signal and a second downlink signal from a first base station and a second base station, respectively, via an antenna in a user equipment (UE), wherein the first base station and the second base station have a first type and a second type, respectively, which is a serving cell, an assistant cell, or a candidate cell.

[0066] Step 720 includes processing circuitry coupled to the RF receiver and measuring a first downlink signal based on rules to support communication with the first base station, wherein the first downlink signal includes a first synchronization signal block (SSB) signal.

[0067] One or more computer systems (such as) can be used, for example. Figure 8 The computer system 800 shown herein is used to implement various aspects. The computer system 800 can be any well-known computer capable of performing the functions described herein, such as... Figure 1 Equipment 101, 103, 105, or Figure 2 The device 200. The computer system 800 includes one or more processors (also called central processing units or CPUs), such as processor 804. Processor 804 is connected to communication infrastructure 806 (e.g., a bus). The computer system 800 also includes user input / output devices 803, such as monitors, keyboards, pointing devices, etc., that communicate with the communication infrastructure 806 via user input / output interface 802. The computer system 800 also includes main memory or primary memory 808, such as random access memory (RAM). Main memory 808 may include one or more levels of cache. Main memory 808 stores control logic components (e.g., computer software) and / or data.

[0068] The computer system 800 may also include one or more auxiliary storage devices or memories 810. Auxiliary storage 810 may include, for example, a hard disk drive 812 and / or a removable storage device or drive 814. The removable storage drive 814 may be a floppy disk drive, a magnetic tape drive, an optical disk drive, an optical storage device, a magnetic tape backup device, and / or any other storage device / drive.

[0069] Removable storage drive 814 can interact with removable storage unit 818. Removable storage unit 818 includes a computer-usable or readable storage device on which computer software (control logic components) and / or data are stored. Removable storage unit 818 can be a floppy disk, magnetic tape, optical disc, DVD, optical storage disk, and / or any other computer data storage device. Removable storage drive 814 reads from and / or writes to removable storage unit 818 in a well-known manner.

[0070] According to some aspects, auxiliary storage 810 may include other means, tools, or other methods for allowing computer programs and / or other instructions and / or data to be accessed by computer system 800. Such means, tools, or other methods may include, for example, removable storage unit 822 and interface 820. Examples of removable storage unit 822 and interface 820 may include program boxes and box interfaces (such as those found in video game devices), removable memory chips (such as EPROM or PROM) and associated sockets, memory sticks and USB ports, memory cards and associated memory card slots, and / or any other removable storage unit and associated interface.

[0071] Computer system 800 may also include a communication or network interface 824. Communication interface 824 enables computer system 800 to communicate and interact with any combination of remote devices, remote networks, remote entities, etc. (individually and collectively referred to by reference numeral 828). For example, communication interface 824 may allow computer system 800 to communicate with remote device 828 via communication path 826, which may be wired and / or wireless, and may include any combination of LAN, WAN, Internet, etc. Control logic and / or data may be sent to and from computer system 800 via communication path 826.

[0072] The operations described in the foregoing aspects can be implemented in various configurations and architectures. Therefore, some or all of the operations described in the foregoing aspects can be performed in hardware, software, or both. In some aspects, tangible, non-transitory devices or articles of art include tangible, non-transitory computer-usable or readable media on which control logic components (software) are stored, also referred to herein as computer program products or program storage devices. This includes, but is not limited to, computer system 800, main memory 808, secondary memory 810, and removable storage units 818 and 822, and tangible articles embodying any combination thereof. When executed by one or more data processing devices, such as computer system 800, such data processing devices cause such data processing devices to operate as described herein.

[0073] Based on the teachings contained in this disclosure, it will be apparent to those skilled in the art how to use [other methods]. Figure 8 Other data processing devices, computer systems, and / or computer architectures besides those shown may be used to make and use aspects of this disclosure. In particular, aspects may operate in conjunction with software, hardware, and / or operating system implementations other than those described herein.

[0074] It should be understood that the Detailed Description section, rather than the Summary and Abstract section, is intended to be used to interpret the claims. The Summary and Abstract section may set forth one or more, but not all, exemplary aspects of this disclosure as contemplated by the inventors, and is therefore not intended to limit this disclosure or the appended claims in any way.

[0075] Although this disclosure has been described herein with reference to exemplary aspects of exemplary fields and applications, it should be understood that this disclosure is not limited thereto. Other aspects and modifications are possible and are within the scope and spirit of this disclosure. For example, and without limiting the generality of this paragraph, the aspects are not limited to the software, hardware, firmware, and / or entities shown in the figures and / or described herein. Furthermore, the aspects (whether explicitly described herein or not) have significant utility for fields and applications beyond those illustrated herein.

[0076] The aspects have been described here using functional building blocks that illustrate specific implementations of functions and their relationships. For ease of description, the boundaries of these functional building blocks have been arbitrarily defined herein. Alternative boundaries can be defined as long as the specified functions and relationships (or their equivalents) are performed appropriately. Furthermore, alternative aspects may perform functional blocks, steps, operations, methods, etc., in a different order than that described herein.

[0077] References herein to “an aspect,” “aspect,” “exemplary aspect,” or similar phrases indicate that the described aspect may include a particular feature, structure, or characteristic, but each aspect may not necessarily include that particular feature, structure, or characteristic. Furthermore, such wording does not necessarily refer to the same aspect. Additionally, when a particular feature, structure, or characteristic is described in conjunction with an aspect, whether or not it is expressly mentioned or described herein, the incorporation of such features, structures, or characteristics into other aspects is within the knowledge of those skilled in the art. The breadth and scope of this disclosure should not be limited by any of the foregoing exemplary aspects, but should be defined solely by the following claims and their equivalents.

[0078] As described above, various aspects of this technology may include the collection and use of data available from a variety of sources to, for example, improve or enhance functionality. This disclosure contemplates that, in some instances, such collected data may include personal information that uniquely identifies or can be used to contact or locate specific individuals. Such personal information may include demographic data, location-based data, telephone numbers, email addresses, Twitter IDs, home addresses, data or records related to a user's health or fitness level (e.g., vital sign measurements, medication information, exercise information), date of birth, or any other identifying information or personal information. This disclosure recognizes that the use of such personal information in this technology can be used to benefit users.

[0079] This disclosure assumes that entities responsible for collecting, analyzing, disclosing, transmitting, storing, or otherwise using such personal information data will comply with established privacy policies and / or privacy practices. Specifically, such entities should implement and adhere to privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy and security of personal information data. Such policies should be easily accessible to users and should be updated as data collection and / or use change. Personal information from users should be collected for the entity's lawful and reasonable purposes and not shared or sold outside of these lawful uses. Furthermore, such collection / sharing should only occur upon receipt of the user's informed consent. In addition, such entities should consider taking any necessary steps to protect and safeguard access to such personal information data and ensure that others with access to such personal information data comply with their privacy policies and processes. Additionally, such entities may be subject to third-party evaluations to demonstrate their compliance with widely accepted privacy policies and practices. Furthermore, policies and practices should be adapted to the specific types of personal information data collected and / or accessed, and to applicable laws and standards, including specific considerations regarding jurisdiction. For example, in the United States, the collection or access to certain health data may be governed by federal and / or state laws, such as the Health Insurance Transfer and Accountability Act (HIPAA); while in other countries, health data may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy practices should be maintained for different types of personal data in each country.

[0080] Regardless of the foregoing, this disclosure also anticipates allowing users to selectively block aspects of the use or access to their personal information data. That is, this disclosure anticipates providing hardware and / or software components to prevent or block access to such personal information data. For example, the technology can be configured to allow users to selectively participate in the collection of personal information data at any time during or after service registration via an "opt-in" or "opt-out" option. In addition to providing "opt-in" and "opt-out" options, this disclosure envisions providing notifications related to access to or use of personal information. For example, users may be notified when downloading an application that their personal information data will be accessed, and then reminded again just before the application accesses the personal information data.

[0081] Furthermore, the purpose of this disclosure is to manage and process personal information data to minimize the risk of unintentional or unauthorized access or use. Once data is no longer needed, this risk can be minimized by limiting data collection and deleting data. Additionally, and where applicable, including in certain health-related applications, data deidentification can be used to protect user privacy. Deidentification can be facilitated, where appropriate, by removing specific identifiers (e.g., date of birth, etc.), controlling the amount or specificity of stored data (e.g., collecting location data at the city level rather than the address level), controlling how data is stored (e.g., aggregating data among users), and / or other methods.

[0082] Therefore, while this disclosure broadly covers the use of personal information data to implement one or more of the various disclosed aspects, it is also contemplated that various aspects can be implemented without access to such personal information data. That is, various aspects of the invention will not be rendered inoperable due to the absence of all or part of such personal information data.

Claims

1. A user equipment (UE), the UE comprising: A radio frequency (RF) receiver is configured to simultaneously receive a first downlink signal and a second downlink signal from a first base station and a second base station via an antenna, respectively, wherein the first base station and the second base station have a first type and a second type, and the first type and the second type are serving cell, assistant cell, or candidate cell; and Processing circuitry, coupled to the RF receiver, is configured to: The first downlink signal is measured based on rules to support communication with the first base station, wherein the first downlink signal includes a first synchronization signal block (SSB) signal; and The second downlink signal is measured, wherein the second downlink signal includes a second SSB signal, and wherein the rule is that the SSB for beam fault detection (BFD) has a higher priority than the SSB for radio link monitoring (RLM), the SSB for RLM has a higher priority than the SSB for candidate beam detection (CBD), the SSB for CBD has a higher priority than the SSB for beam management (BM), and the SSB for BM has a higher priority than the SSB without any configured function.

2. The UE of claim 1, wherein the first type is the serving cell or the assistant cell, the second type is the candidate cell, and wherein the rule includes a further priority rule in which the priority of the serving cell or the assistant cell exceeds the priority of the candidate cell.

3. The UE of claim 2, wherein measuring the second SSB signal comprises measuring the second SSB signal based on measurement window information provided by higher-layer signaling.

4. The UE according to claim 3, wherein the measurement window information includes at least one of periodicity, offset, cell index, or SSB index.

5. The UE according to claim 1, wherein the first SSB signal is an SSB signal for BFD, an SSB signal for RLM, or an SSB signal for CBD, and the second downlink signal further includes a Physical Downlink Shared Channel (PDSCH) signal or a Channel State Information-Reference Signal (CSI-RS) signal, and the first type is a serving cell and the second type is an assistant cell, or the first type is an assistant cell and the second type is a serving cell.

6. The UE according to claim 1, wherein the first SSB signal is an SSB signal for CBD.

7. The UE of claim 1, wherein the UE further comprises a transmitter coupled to the processing circuitry, the UE being configured to report a measurement capability for measuring the first downlink signal and the second downlink signal, the UE using different panels in the antenna to receive the first downlink signal and the second downlink signal.

8. The UE according to claim 1, wherein the second downlink signal further includes a PDSCH signal or a CSI-RS signal or a physical downlink control channel PDCCH signal, and the first type is a serving cell and the second type is an assistant cell, or the first type is an assistant cell and the second type is a serving cell.

9. The UE of claim 1, wherein the UE further comprises a transmitter coupled to the processor circuitry, the UE being configured to report Quasi-Co-address Type D (QCL-Type D) support, the support indicating whether the UE is capable of supporting one or two QCL-Type D configurations at a time.

10. A method comprising: The user equipment (UE) simultaneously receives a first downlink signal and a second downlink signal from a first base station and a second base station, respectively, wherein the first base station and the second base station have a first type and a second type, and the first type and the second type are serving cell, assistant cell, or candidate cell; as well as The first downlink signal is measured based on rules to support communication with the first base station, wherein the first downlink signal includes a first synchronization signal block (SSB) signal; as well as The second downlink signal is measured, wherein the second downlink signal includes a second SSB signal, and wherein the rule is that the SSB for beam fault detection (BFD) has a higher priority than the SSB for radio link monitoring (RLM), the SSB for RLM has a higher priority than the SSB for candidate beam detection (CBD), the SSB for CBD has a higher priority than the SSB for beam management (BM), and the SSB for BM has a higher priority than the SSB without any configured function.

11. The method of claim 10, wherein the first type is the serving cell or the assistant cell, the second type is the candidate cell, and wherein the rule includes a further priority rule in which the priority of the serving cell or the assistant cell exceeds the priority of the candidate cell.

12. The method of claim 11, wherein measuring the second SSB signal comprises measuring the second SSB signal based on measurement window information provided by higher-layer signaling.

13. The method of claim 10, wherein the first SSB signal is an SSB signal for BFD, an SSB signal for RLM, or an SSB signal for CBD, and the second downlink signal further includes a Physical Downlink Shared Channel (PDSCH) signal or a Channel State Information-Reference Signal (CSI-RS) signal, and the first type is a serving cell and the second type is an assistant cell, or the first type is an assistant cell and the second type is a serving cell.

14. The method of claim 10, wherein the first SSB signal is an SSB signal for CBD.

15. The method of claim 10, further comprising reporting the measurement capability of measuring the first downlink signal and the second downlink signal, wherein the UE uses different panels in the antenna to receive the first downlink signal and the second downlink signal.

16. The method of claim 10, wherein the second downlink signal further includes a PDSCH signal or a CSI-RS signal or a Physical Downlink Control Channel (PDCCH) signal, and the first type is a serving cell and the second type is an assistant cell, or the first type is an assistant cell and the second type is a serving cell.

17. The method of claim 10, the method further comprising reporting quasi-co-location type D (QCL-TypeD) support, the support indicating whether the UE is capable of supporting one or two QCL-TypeD configurations at a time.

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