A method for operating a user equipment in a wireless communication network and the user equipment

By verifying DL transmission with the COT information indicated by DCI 2_0 and timer in the new radio unauthorized spectrum, the UE optimizes the reception of DL transmission, solves the problem of resource waste and high power consumption caused by unpredictable channel access, and improves the effectiveness and channel quality of DL transmission.

CN113271195BActive Publication Date: 2025-08-15SAMSUNG ELECTRONICS CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202110176695.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-12-22
Filing Date
2021-02-09
Publication Date
2025-08-15
Estimated Expiration
2041-02-09

AI Technical Summary

Technical Problem

In the new radio unlicensed spectrum, DL transmission on the UE side causes resource waste and high power consumption due to unpredictable channel access opportunities, especially resource waste and quality impacts on the reception of periodic or semi-static signals/channels.

Method used

By verifying the DL transmission by the COT information indicated in DCI 2_0, the UE determines whether to cancel the DL transmission part, uses the timer and COT information to reasonably assume the availability of DL transmission, reduce blind detection, optimize the PDCCH monitoring configuration, independently configure periodic CSI-RS, etc.

Benefits of technology

The power consumption on the UE side is reduced, resource waste is reduced, the effectiveness and channel quality of DL transmission are improved, and the reception of periodic or semi-static signals/channels is optimized.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN113271195B_ABST
    Figure CN113271195B_ABST
Patent Text Reader

Abstract

A method and user equipment for operating a wireless communication network is provided. The method includes receiving a downlink (DL) transmission from the network, determining by the user equipment whether to cancel at least a portion of the DL transmission, and canceling by the user equipment the at least a portion of the DL transmission when the user equipment determines that the at least a portion of the DL transmission is to be canceled.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] This application is based upon and claims the benefit of U.S. Provisional Patent Application No. 62 / 977,028, filed on February 14, 2020, U.S. Provisional Patent Application No. 63 / 000,074, filed on March 26, 2020, U.S. Provisional Patent Application No. 63 / 021,873, filed on May 8, 2020, and U.S. Provisional Patent Application No. 63 / 107,900, filed on October 30, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure generally relates to the reception of periodic or semi-static signals. Background Art

[0003] For New Radio Unlicensed Spectrum (NR-U), in order to achieve fair coexistence with other technologies using the same unlicensed spectrum, a channel access procedure is considered such that a device needs to first sense the channel and, if the channel sensing result indicates that the channel is available, utilize the channel. Summary of the Invention

[0004] According to one embodiment, a method for a user equipment (UE) in a wireless communication network includes receiving a downlink (DL) transmission from the network, determining, by the UE, whether to cancel at least a portion of the DL transmission, and canceling, by the UE, the at least a portion of the DL transmission when the UE determines that the at least a portion of the DL transmission is to be canceled.

[0005] According to an embodiment, a UE includes a transceiver, a memory, and a processor, wherein the processor is configured to: receive a DL transmission from a network, determine whether to cancel at least a portion of the DL transmission, and cancel the at least a portion of the DL transmission when the UE determines that the at least a portion of the DL transmission is to be canceled. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0007] Figure 1 A diagram illustrating channel state information reference signal (CSI-RS) opportunities occurring within a COT according to an embodiment;

[0008] Figure 2A and Figure 2B A diagram illustrating CSI-RS opportunities occurring within a DL transmission according to an embodiment;

[0009] Figure 3A and Figure 3BA diagram illustrating CSI-RS opportunities occurring between downlink control information (DCI) and a physical downlink shared channel (PDSCH) according to an embodiment;

[0010] Figure 4 A flowchart illustrating a method of operating a UE according to an embodiment; and

[0011] Figure 5 A block diagram illustrating an electronic device in a network environment according to one embodiment. DETAILED DESCRIPTION

[0012] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. It should be noted that although the same elements are shown in different drawings, they will be designated by the same figure numerals. In the following description, only specific details such as detailed configuration and components are provided to help fully understand the embodiments of the present disclosure. Therefore, it should be clear to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope of the present disclosure. In addition, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted. The terms described below are terms defined in consideration of the functions in the present disclosure and may vary according to the user, the user's intention or custom. Therefore, the definition of the terms should be determined based on the content throughout this specification.

[0013] The present disclosure may have various modifications and various embodiments, among which the embodiments are described in detail below with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to these embodiments, but includes all modifications, equivalents and substitutes within the scope of the present disclosure.

[0014] Although can use comprise such as first, second etc. ordinal number term to describe various elements, structural element is not limited by these terms.These terms are only used to distinguish one element from another element.For example, under the situation that does not depart from the scope of this disclosure, the first structural element can be referred to as the second structural element.Similarly, the second structural element can also be referred to as the first structural element.As used herein, term "and / or" includes any and all combinations of one or more related items.

[0015] The terms used herein are only used to describe various embodiments of the present disclosure and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In the present disclosure, it should be understood that the terms "including" or "having" indicate the presence of features, numbers, steps, operations, structural elements, parts or features, numbers, steps, operations, structural elements and parts, and do not exclude the presence of one or more other features, numbers, steps, operations, structural elements, parts or features, numbers, steps, operations, structural elements and parts, or the possibility of adding one or more other features, numbers, steps, operations, structural elements, parts or features, numbers, steps, operations, structural elements and parts.

[0016] Unless defined differently, all terms used herein have the same meaning as understood by those skilled in the art to which the present disclosure belongs. Unless explicitly defined in the present disclosure, terms such as those defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant art and should not be interpreted as having an ideal or overly formal meaning.

[0017] An electronic device according to one embodiment may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to one embodiment of the present disclosure, the electronic device is not limited to the aforementioned electronic devices.

[0018] The terms used in this disclosure are not intended to limit the disclosure, but are intended to include various changes, equivalents or substitutes of the corresponding embodiments. With regard to the description of the accompanying drawings, similar figure numerals may be used to refer to similar or related elements. Unless otherwise clearly stated in the relevant context, the singular form of the noun corresponding to the project may include one or more things. As used herein, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include all possible combinations of the project listed together in the corresponding phrase in the phrase. As used herein, terms such as "1st", "2nd", "first" and "second" may be used to distinguish a corresponding component from another component, but are not intended to limit the component in other aspects (e.g., importance or order). If an element (e.g., a first element) is “coupled with”, “coupled to”, “connected with”, or “connected to” another element (e.g., the second element), with or without the term “operably” or “communicatively”, it means that the element can be coupled with the other element directly (e.g., by wire), wirelessly, or via a third element.

[0019] As used herein, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions, or the smallest unit or portion of the single integrated component. For example, depending on an embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0020] The channel access procedure is known as listen-before-talk (LBT). Devices employing LBT can be categorized as either load-based equipment (LBE) or frame-based equipment (FBE). With LBE, channel sensing occurs for data transmission at all times, except when a random backoff procedure is applied when the channel is sensed to be busy. With FBE, predetermined periodic channel access opportunities are applied, and each channel sensing is associated with a fixed duration for data transmission followed by a fixed idle period. If the channel sensing procedure in FBE is successful, the disclosed fixed duration for data transmission can be utilized. Otherwise, access to the channel is not allowed until the next channel access opportunity.

[0021] With LBT, DL transmission cannot be guaranteed due to unpredictable channel access opportunities on the network side. Although there is no enhanced DL transmission detection mechanism on the UE side in NR-U, DL transmission can be associated with the detection of the Physical Downlink Control Channel (PDCCH) or the Group Common PDCCH (GC-PDCCH). For example, if LBE is considered, when the UE detects DCI, it can reasonably assume that the network has acquired the channel within a specific time, allowing subsequent DL transmission to occur. Specifically, when the UE is configured to monitor DCI format 2_0, network channel access status information (COT) is provided to the UE via a specific field in DCI format 2_0, if configured, or via a slot duration inferred from the Slot Format Indicator (SFI) value in DCI format 2_0. With FBE, on the other hand, although a successful channel access procedure is not guaranteed, the COT is fixed after each successful channel access procedure. The COT information indicates that the network can be assumed to have occupied the channel for the indicated or configured duration, utilizing either DL transmissions from the network or scheduled uplink (UL) transmissions from the UE. In other words, unauthorized operations within the indicated COT may resemble authorized operations.

[0022] In order to adapt to unpredictable channel access opportunities and occupy the channel immediately after the network side acquires the channel, it is expected to have more DCI transmission opportunities for the network. Therefore, the corresponding UE PDCCH monitoring may be more frequent and power consumption is higher. In order to reduce the PDCCH monitoring power, two monitoring behaviors associated with two groups of search space sets can be configured for the UE, so that when an obvious switching trigger is detected in DCI 2_0 when DCI 2_0 is configured, otherwise when any DCI is detected when DCI 2_0 is not configured, the UE switches to a set of search space sets with less frequent PDCCH monitoring behaviors. In order to switch back to a very frequent PDCCH monitoring configuration, several mechanisms are introduced in NR-U. The first mechanism is to utilize a specific switching trigger in DCI 2_0 when DCI2_0 is configured, so that the UE switches to a search space set with more frequent PDCCH monitoring behavior after detecting the trigger. The second mechanism relies on a timer configured for the UE. The start of the timer is associated with switching from a search space set with more frequent monitoring behavior to a search space set with less frequent monitoring behavior. When the timer expires, the UE switches back to more frequent PDCCH monitoring. Similarly, when the indicated COT ends, the UE switches back to more frequent PDCCH monitoring accordingly.

[0023] For downlink transmissions not associated with DCI (e.g., periodic or semi-persistent signals / channels such as periodic CSI-RS, semi-persistent CSI-RS, and semi-persistently scheduled physical downlink shared channel (SPS-PDSCH)), the corresponding reception on the UE side is not associated with DCI detection, and the UE receives it at every configured opportunity. However, it is undesirable for the UE to perform such downlink transmissions without considering unpredictable channel access results. For example, when a UE is configured to receive periodic CSI-RS, the quality of the associated CSI report may be severely affected by CSI-RS not transmitted by the network due to associated channel access failure. As a result, the CSI report does not reflect the actual channel quality. Another example is SPS-PDSCH reception. After activating SPS-PDSCH, the UE should report decoding results on the Physical Uplink Control Channel (PUCCH) for every configured SPS-PDSCH opportunity. If the network does not transmit the scheduled SPS-PDSCH due to channel access failure, this may result in redundant PDSCH decoding and PUCCH transmission on the UE side. Therefore, it is preferable to define the UE behavior regarding receiving periodic or semi-static signals / channels in the unlicensed spectrum taking into account the channel access status to avoid negative impacts on the UE side.

[0024] The present disclosure provides a method for a UE to receive periodic and semi-static DL signals / channels in unlicensed spectrum. In one embodiment, the UE utilizes the COT information indicated in DCI 2_0 to verify DL transmissions. Specifically, when the UE is configured to monitor DCI 2_0, the UE appropriately assumes that a DL transmission configured by higher layers was successfully sent only when the associated opportunity falls within the indicated COT.

[0025] Figure 1 A diagram showing CSI-RS opportunities occurring within a COT according to an embodiment. Figure 1 As shown in FIG, based on the DCI 102, the UE can determine the COT 104 and Figure 1 In the example shown, CSI-RS opportunity 106, CSI-RS opportunity 108, and CSI-RS opportunity 110 occur within the COT. However, CSI-RS opportunity 112 occurs outside of COT 104. In this case, the UE determines that CSI-RS opportunity 112 does not exist and cancels CSI-RS opportunity 112.

[0026] In one embodiment, when a UE is configured to monitor DCI 2_0, if any portion of the DL transmission is not within the COT indicated in DCI 2_0, reception of the DL transmission configured by higher layers is canceled. The COT duration can be determined based on a specific bit field in DCI 2_0 or the SFI, and validation of DL transmissions configured from higher layers in licensed spectrum has been established in Rel-15 using the SFI. To merge the Rel-15 SFI validation rules with the COT concept in unlicensed spectrum, all possible combinations of configurations for the specific bit field in DCI 2_0 and the SFI are provided.

[0027] If only a specific bit field for the COT duration is configured in DCI 2_0, DL transmission configured by higher layers within the indicated COT duration can be guaranteed, provided that the DL transmission completely overlaps with the semi-static DL symbol or any associated symbol of the DL transmission does not overlap with any DCI-scheduled UL transmission.

[0028] If only SFI is configured in DCI 2_0, DL transmissions configured by higher layers within the indicated COT duration can be guaranteed based on Rel-15 UE behavior (i.e., the associated symbols of the DL transmission are indicated as DL symbols in the SFI). However, DCI 2_0 with SFI may not be detected, and the slot format configured by higher layers may be applied in some slots. In this case, the DL symbols indicated by the higher layer configuration are not verified by the dynamic SFI information. Therefore, the UE should not verify the DL transmissions configured by higher layers for those unverified DL symbols.

[0029] If both the SFI and the specific bit field for the COT duration are configured, the DL transmission configured by the higher layer within the COT duration indicated by the specific bit field for the COT duration can be ensured based on the Rel-15 UE behavior (i.e., the associated symbols of the DL transmission are indicated as DL symbols in the SFI). If DCI 2_0 is not detected and the slot format configured by the higher layer is applied in some slots, the UE should not verify the DL transmission configured by the higher layer for those unverified DL symbols.

[0030] One issue when configuring both the SFI and a specific bit field for the COT duration is that the COT information derived from the SFI may differ from the COT information indicated by the specific bit field. In this case, the DL symbols indicated by the SFI may not be within the COT information indicated by the specific bit field, and the associated UE behavior is unclear. To disambiguate, one embodiment includes ignoring DL symbols indicated by the SFI if they are outside the COT. An alternative approach is to follow the SFI based on the assumption that the configuration from the network closely reflects the channel access results (e.g., symbols outside the COT are indicated as flexible). However, in Rel-15, DL / UL symbols configured by the semi-static slot format cannot be covered by the SFI, which imposes a restriction on the network-side configuration, making it possible for the SFI to not closely follow the channel access results. Therefore, it is reasonable to assume that if DL / UL symbols configured by the semi-static slot format are not within the COT, then the DL / UL symbols configured by the semi-static slot format should be considered flexible symbols. On the other hand, the problem can be solved by restricting the COT duration derived from the SFI to be covered by a duration derived from a specific bit field for the COT duration.

[0031] The above disclosure uses COT information to ensure DL transmission within the COT, which is available if the UE is configured to monitor DCI 2_0. For situations where COT information is unavailable to the UE, the disclosure utilizes a timer to specify the duration for which the network may potentially occupy the channel. When utilizing a timer, if the associated timing occurs while the timer is running, the UE assumes that the DL transmission configured by higher layers was successfully transmitted. An example of a timer may be a timer introduced for switching groups of search space sets.

[0032] In another embodiment, when COT is not available for the UE, a timer can be configured so that if any part of the DL transmission opportunity is not within the duration of the timer, the reception of the DL transmission configured by the higher layer is cancelled. One design of the timer is to introduce a timer for switching the group of the search space set.

[0033] In addition to the COT information or the duration indicated by the timer, it is reasonable to assume the presence of a periodic and semi-static DL signal / channel if the occasion overlaps with a received set of small gap downlink transmissions (if any).

[0034] Figure 2A and Figure 2BA diagram showing CSI-RS opportunities occurring within a DL transmission according to an embodiment. In this embodiment, if a DL transmission opportunity completely overlaps with a set of downlink transmissions (if any) with small gaps, the UE can determine that the DL transmission configured by higher layers is transmitted. Figure 2A In FIG, CSI-RS opportunity 202 and CSI-RS opportunity 204 are within two DL transmissions 206 and 208. The UE determines that CSI-RS opportunity 202 and CSI-RS opportunity 204 exist. However, CSI-RS opportunity 210 is outside of DL transmissions 206 and 208. The UE determines that CSI-RS opportunity 210 does not exist and cancels CSI-RS opportunity 210. Figure 2B , CSI-RS opportunity 210 occurs before first DL transmission 218, and CSI-RS opportunity 214 occurs after second DL transmission 216. The UE determines that there are CSI-RS opportunities 210 and 214. However, CSI-RS opportunity 220 is outside of DL transmissions 216 and 218. The UE determines that there is no CSI-RS opportunity 220 and cancels CSI-RS opportunity 220.

[0035] The network may include DL transmissions to many UEs within a period of channel occupancy following a successful channel access procedure. In this case, the DL transmissions received at each UE may have large gaps, and even those received DL transmissions may be within a single channel occupancy duration. To address the assumption of the presence of periodic and semi-static DL signals / channels for this scenario, it is reasonable to assume that the DCI and the scheduled PDSCH are within the same COT. Therefore, it is disclosed that periodic and semi-static DL signals / channels located between the DCI and the scheduled PDSCH can be assumed to exist.

[0036] Figure 3A and Figure 3B A diagram showing CSI-RS timing occurring between DCI and PDSCH according to an embodiment. Figure 3A As shown in FIG, CSI-RS opportunity 302 and CSI-RS opportunity 304 occur between DCI 306 and PDSCH 308. Therefore, the UE determines that CSI-RS opportunity 302 and CSI-RS opportunity 304 exist. However, CSI-RS opportunity 309 is outside DCI 306 and DCI 308. The UE determines that CSI-RS opportunity 309 does not exist and cancels CSI-RS opportunity 309. Figure 3BIn FIG, CSI-RS opportunity 310 occurs between first DCI 316 and first PDSCH 320. CSI-RS opportunity 312 occurs between second DCI 318 and first PDSCH 320. CSI-RS opportunity 314 occurs between second DCI 318 and second PDSCH 322. Therefore, the UE determines that CSI-RS opportunity 310, CSI-RS opportunity 312, and CSI-RS opportunity 314 exist. However, CSI-RS opportunity 324 is outside DCI 316 and DCI 318 and PDSCH 320 and PDSCH 322. The UE determines that CSI-RS opportunity 324 does not exist and cancels CSI-RS opportunity 324. In addition, if a group of downlink transmissions can be inferred to be within the COT by assuming that the detected DCI and the scheduled PDSCH are in the same COT, then periodic and semi-static DL signals / channels that are part of the group of downlink transmissions can be assumed to be transmitted.

[0037] In another embodiment, if the DL transmission opportunity is within the COT inferred by assuming that the DCI and the scheduled PDSCH are within the same COT, the UE can assume that the DL transmission configured by higher layers was transmitted. For FBE, due to the nature of the associated channel access procedure, each data transmission duration can be considered a COT when the associated channel sensing is successful before the data transmission duration. Therefore, if the UE detects any other DL transmission within the same transmission duration, the UE can assume that the DL transmission configured by higher layers was transmitted during the transmission duration.

[0038] For FBE, if the UE detects any other DL transmission during the same transmission duration, the UE may assume that the DL transmission configured by higher layers was transmitted during the transmission duration.

[0039] On the other hand, in order to solve the potential blind detection problem of periodic or semi-static DL transmission, the corresponding use should be reduced in unlicensed spectrum. In order to adapt to the lack of those periodic or semi-static DL transmissions, dynamic DL transmissions with the same functionality should be utilized as much as possible. In addition, for dynamic signals / channels that need to be configured with dependencies on periodic signals / channels, the associated configuration should be relaxed so that independent configuration of periodic signals / channels is allowed. For example, the aperiodic CSI-RS used for tracking can only be configured with a corresponding relationship with the periodic CSI-RS used for tracking in the current specification, which should be relaxed so that independent configuration of the CSI-RS used for tracking should be allowed.

[0040] For operation with shared spectrum channel access, in case the UE is configured by higher layers to receive CSI-RS for a set of time slot symbols indicated as downlink or flexible by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated and the UE is provided with CO-DurationPerCell-r16, or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided, the UE cancels CSI-RS reception in a set of time slot symbols that are not within the indicated remaining channel occupancy duration.

[0041] Figure 4 A flowchart 400 is shown in a method of operating a UE according to an embodiment. At 402, the UE receives a DL transmission. At 404, the UE determines whether to cancel at least a portion of the DL transmission. The UE may determine to cancel the entire DL transmission. When a portion of the DL transmission is not within the COT, the UE may determine to cancel the at least a portion of the DL transmission. When a portion of the DL transmission opportunity is not within a predetermined duration of a timer, the UE may determine to cancel the at least a portion of the DL transmission. When the DL transmission does not overlap with a group of DL transmissions with a small gap, the UE may determine to cancel the at least a portion of the DL transmission. When no SFI is detected, the UE may determine to cancel the at least a portion of the DL transmission. At 406, the UE may cancel the at least a portion of the transmission.

[0042] Figure 5 is a block diagram illustrating an electronic device 501 in a network environment 500 according to one embodiment. Figure 5In network environment 500, electronic device 501 can communicate with electronic device 502 via a first network 598 (e.g., a short-range wireless communication network), or can communicate with electronic device 504 or server 508 via a second network 599 (e.g., a long-range wireless communication network). Electronic device 501 can communicate with electronic device 504 via server 508. Electronic device 501 may include a processor 520, a memory 530, an input device 550, an audio output device 555, a display device 560, an audio module 570, a sensor module 576, an interface 577, a haptic module 579, a camera module 580, a power management module 588, a battery 589, a communication module 590, a subscriber identification module (SIM) 596, or an antenna module 597. In one embodiment, at least one of the components (e.g., display device 560 or camera module 580) may be omitted from electronic device 501, or one or more other components may be added to electronic device 501. In one embodiment, some of the components may be implemented as a single integrated circuit (IC).For example, the sensor module 576 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented as embedded in the display device 560 (eg, a display).

[0043] The processor 520 may run, for example, software (e.g., program 540) to control at least one other component of the electronic device 501 (e.g., a hardware component or a software component) in conjunction with the processor 520, and may perform various data processing or computations. As at least part of this data processing or computation, the processor 520 may load commands or data received from another component (e.g., sensor module 576 or communication module 590) into the volatile memory 532, process the commands or data stored in the volatile memory 532, and store the resulting data in the non-volatile memory 534. The processor 520 may include a main processor 521 (e.g., a central processing unit (CPU) or an application processor (AP)) and an auxiliary processor 523 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operationally independent of or in conjunction with the main processor 521. Additionally or alternatively, the auxiliary processor 523 may be configured to consume less power than the main processor 521 or to perform specific functions. The auxiliary processor 523 may be implemented separately from the main processor 521 or as part of the main processor 521 .

[0044] When the main processor 521 is in an inactive (e.g., sleep) state, the auxiliary processor 523 (instead of the main processor 521) may control at least some of the functions or states related to at least one component (e.g., the display device 560, the sensor module 576, or the communication module 590) among the components of the electronic device 501, or when the main processor 521 is in an active state (e.g., running an application), the auxiliary processor 523 may control at least some of the functions or states related to at least one component (e.g., the display device 560, the sensor module 576, or the communication module 590) together with the main processor 521. According to one embodiment, the auxiliary processor 523 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., the camera module 580 or the communication module 590) that is functionally related to the auxiliary processor 523.

[0045] The memory 530 may store various data used by at least one component of the electronic device 501 (e.g., the processor 520 or the sensor module 576). The various data may include, for example, software (e.g., the program 540) and input data or output data for commands related thereto. The memory 530 may include a volatile memory 532 or a non-volatile memory 534.

[0046] The program 540 may be stored as software in the memory 530 , and may include, for example, an operating system (OS) 542 , middleware 544 , or applications 546 .

[0047] The input device 550 may receive commands or data to be used by other components (eg, processor 520) of the electronic device 501 from outside the electronic device 501 (eg, a user). The input device 550 may include, for example, a microphone, a mouse, or a keyboard.

[0048] The sound output device 555 can output sound signals to the outside of the electronic device 501. The sound output device 555 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or records, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0049] The display device 560 can visually provide information to an external portion of the electronic device 501 (e.g., a user). The display device 560 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to one embodiment, the display device 560 may include a touch circuit adapted to detect a touch, or a sensor circuit adapted to measure the strength of a force caused by a touch (e.g., a pressure sensor).

[0050] The audio module 570 can convert sound into electrical signals and vice versa. According to one embodiment, the audio module 570 can obtain sound via the input device 550, or output sound via the sound output device 555 or an earphone of an external electronic device 502 directly (e.g., wired) or wirelessly connected to the electronic device 501.

[0051] The sensor module 576 can detect the operating state of the electronic device 501 (e.g., power or temperature) or the environmental state outside the electronic device 501 (e.g., the state of the user), and then generate an electrical signal or data value corresponding to the detected state. The sensor module 576 may include, for example, a gesture sensor, a gyroscope sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0052] The interface 577 may support one or more specific protocols for connecting the electronic device 501 to an external electronic device (e.g., electronic device 502) directly (e.g., wired) or wirelessly. Depending on the embodiment, the interface 577 may include, for example, a High-Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, or an audio interface.

[0053] The connection end 578 may include a connector via which the electronic device 501 can be physically connected to the external electronic device 502. According to one embodiment, the connection end 578 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0054] The haptic module 579 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user through tactile perception or kinesthetic perception. According to one embodiment, the haptic module 579 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0055] The camera module 580 may capture still images or moving images. According to one embodiment, the camera module 580 may include one or more lenses, image sensors, image signal processors, or flashes.

[0056] The power management module 588 may manage power supplied to the electronic device 501. The power management module 588 may be implemented as, for example, at least a portion of a power management integrated circuit (PMIC).

[0057] The battery 589 may power at least one component of the electronic device 501. According to one embodiment, the battery 589 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0058] The communication module 590 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 501 and an external electronic device (e.g., electronic device 502, electronic device 504, or server 508), and perform communication via the established communication channel. The communication module 590 may include one or more communication processors capable of operating independently from the processor 520 (e.g., AP), and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 590 may include a wireless communication module 592 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 594 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules may communicate via a first network 598 (e.g., a short-range communication network such as Bluetooth TM , Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA) standards) or a second network 599 (e.g., a long-distance communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules may be implemented as a single component (e.g., a single IC), or may be implemented as multiple components (e.g., multiple ICs) separated from each other. The wireless communication module 592 may identify and authenticate the electronic device 501 in a communication network (such as the first network 598 or the second network 599) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 596.

[0059] Antenna module 597 can transmit or receive signals or power to or from the outside of electronic device 501 (e.g., an external electronic device). According to one embodiment, antenna module 597 may include one or more antennas, and thus, for example, communication module 590 (e.g., wireless communication module 592) may select at least one antenna suitable for the communication scheme used in a communication network (such as first network 598 or second network 599). Signals or power can then be transmitted or received between communication module 590 and the external electronic device via the selected at least one antenna.

[0060] At least some of the above components may be coupled to each other via an inter-peripheral communication scheme (e.g., a bus, general purpose input output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and communicate signals (e.g., commands or data) therebetween.

[0061] According to an embodiment, commands or data may be transmitted or received between the electronic device 501 and the external electronic device 504 via the server 508 coupled to the second network 599. Each of the electronic device 502 and the electronic device 504 may be of the same type as the electronic device 501, or of a different type than the electronic device 501. All or some operations to be executed on the electronic device 501 may be executed on one or more of the external electronic device 502, the external electronic device 504, or the server 508. For example, if the electronic device 501 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 501 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or in addition to executing the function or service, the electronic device 501 may request the one or more external electronic devices to execute at least part of the function or service. The one or more external electronic devices that receive the request may execute at least part of the requested function or service, or execute another function or service related to the request, and transmit the result of the execution to the electronic device 501. The electronic device 501 may provide the result as at least a partial response to the request, either by further processing the result or without further processing the result. To this end, for example, cloud computing technology, distributed computing technology, or client-server computing technology may be used.

[0062] One embodiment can be implemented as software (e.g., program 540) comprising one or more instructions stored in a storage medium (e.g., internal memory 536 or external memory 538) that are readable by a machine (e.g., electronic device 501). For example, under the control of a processor, the processor of electronic device 501 can invoke and execute at least one of the one or more instructions stored in the storage medium, with or without the use of one or more other components. Thus, the machine can be operated to perform at least one function in accordance with the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" indicates that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but the term does not distinguish between data stored semi-permanently and data stored temporarily in the storage medium.

[0063] According to one embodiment, the method of the present disclosure may be included and provided in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., PlayStore). TM ) The computer program product may be published online (e.g., downloaded or uploaded) or distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smartphones). If published online, at least part of the computer program product may be temporarily generated or at least temporarily stored in a machine-readable storage medium (e.g., a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0064] According to one embodiment, each of the above-mentioned components (e.g., a module or a program) may include a single entity or multiple entities. One or more of the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as the one or more functions performed by the corresponding one of the multiple components before integration. The operations performed by a module, program, or another component may be performed sequentially, in parallel, repeatedly, or in a heuristic manner, or one or more of the operations may be run in a different order or omitted, or one or more other operations may be added.

[0065] Although certain embodiments of the present disclosure have been described in the detailed description of the present disclosure, the present disclosure may be modified in various forms without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be determined based solely on the described embodiments, but rather on the appended claims and their equivalents.

Claims

1. A method of operating a user equipment (UE) in a wireless communication network, the method comprising: receiving a downlink (DL) transmission from the network, wherein a first portion of DL transmission opportunities of the DL transmission overlaps with at least a portion of a channel state information reference signal (CSI-RS); Determining, by the UE, that a second portion of the DL transmission opportunities does not overlap with the CSI-RS; and In response to determining that the second portion of the DL transmission opportunities does not overlap with the CSI-RS, the first portion and the second portion of the DL transmission opportunities are allowed by the UE.

2. The method according to claim 1, wherein When a portion of the DL transmission opportunity is not within the channel occupancy time COT, the first portion and the second portion of the DL transmission opportunity are determined to be cancelled.

3. The method according to claim 2, further comprising: The UE monitors downlink control information DCI, The COT is indicated in the DCI.

4. The method according to claim 1, further comprising: Configure the timer for a predetermined duration, When a portion of the DL transmission opportunity is not within the predetermined duration, the first portion and the second portion of the DL transmission opportunity are determined to be cancelled.

5. The method according to claim 4, wherein The timer includes a timer introduced into a group for switching a search space set.

6. The method according to claim 1, wherein When the DL transmission opportunity does not overlap with a group of DL transmissions with a small gap, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

7. The method according to claim 1, wherein When the DL transmission opportunity is not between the detected downlink control information DCI and the scheduled physical downlink shared channel PDSCH, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

8. The method according to claim 1, wherein When any part of the DL transmission opportunity is not within the transmission duration, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

9. The method according to claim 8, wherein The UE includes a frame-based equipment FBE.

10. The method according to claim 1, further comprising: The UE monitors a slot format indicator SFI, When no SFI is detected, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

11. A user equipment (UE), comprising: transceiver; Memory; as well as The processor is configured to: receiving a downlink (DL) transmission from a network, wherein a first portion of DL transmission opportunities of the DL transmission overlaps with at least a portion of a channel state information reference signal (CSI-RS); determining that a second portion of the DL transmission opportunity does not overlap with the CSI-RS; as well as In response to determining that the second portion of the DL transmission opportunities does not overlap with the CSI-RS, the first portion and the second portion of the DL transmission opportunities are allowed.

12. The UE according to claim 11, wherein: When a portion of the DL transmission opportunity is not within the channel occupancy time COT, the first portion and the second portion of the DL transmission opportunity are determined to be cancelled.

13. The UE according to claim 12, wherein: The processor is further configured to: monitor downlink control information DCI, The COT is indicated in the DCI.

14. The UE according to claim 11, wherein: The processor is further configured to: set a timer for a predetermined duration, When a portion of the DL transmission opportunity is not within the predetermined duration, the first portion and the second portion of the DL transmission opportunity are determined to be cancelled.

15. The UE according to claim 14, wherein: The timer includes a timer introduced into a group for switching a search space set.

16. The UE according to claim 11, wherein: When the DL transmission opportunity does not overlap with a group of DL transmissions with a small gap, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

17. The UE according to claim 11, wherein: When the DL transmission opportunity is not between the detected downlink control information DCI and the scheduled physical downlink shared channel PDSCH, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

18. The UE according to claim 11, wherein: When any part of the DL transmission opportunity is not within the transmission duration, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

19. The UE according to claim 18, wherein: The UE includes a frame-based equipment FBE.

20. The UE according to claim 11, wherein: The processor is further configured to: monitor a slot format indicator SFI, When no SFI is detected, the first part and the second part of the DL transmission opportunity are determined to be cancelled.

Citation Information

Patent Citations

  • LAA transmission method and device in cellular network

    CN105530647A

  • Method and apparatus for applying slot format indication (SFI) to a cell in unlicensed spectrum in a wireless communication system

    US20200053728A1