Devices and methods of communication
By configuring measurement windows and gaps for sensing signals, the network device enhances the flexibility and efficiency of sensing signal measurement in ISAC systems, addressing the limitations of traditional radar technology.
Patent Information
- Application Number
- PCT/CN2024/071217
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-08
- Publication Date
- 2025-07-17
AI Technical Summary
Traditional radar technology is costly and inflexible for integrating sensing capabilities with communication services, necessitating a more efficient and adaptable approach for sensing signal measurement in integrated sensing and communication (ISAC) systems.
A network device configures terminal devices with measurement windows, gaps, or prioritization settings for sensing signal measurements, allowing dynamic switching between sparse and dense sensing to optimize power consumption and flexibility.
Facilitates flexible sensing signal measurement, reducing power consumption while ensuring accurate and timely sensing operations in diverse communication scenarios.
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Figure CN2024071217_17072025_PF_FP_ABST
Abstract
Description
DEVICES AND METHODS OF COMMUNICATIONTECHNICAL FIELD
[0001] Embodiments of the present disclosure generally relate to the field of telecommunication, and in particular, to methods, devices and computer storage media of communication for a sensing signal measurement in integrated sensing and communication (ISAC) .BACKGROUND
[0002] Many new emerging businesses require sensing capability to provide accurate and timely services. However, traditional radar technology is high cost to deploy and not flexible enough to extent to current diverse services. ISAC has been proposed to provide high quality services. With the ISAC, a network or user equipment (UE) may have capability to sense their surroundings and exchange their observations through communication. However, implementation of a sensing signal measurement is still unclear.SUMMARY
[0003] In general, embodiments of the present disclosure provide methods, devices and computer storage media of communication for a sensing signal measurement.
[0004] In a first aspect, there is provided a terminal device. The terminal device comprises a processor. The processor is configured to cause the terminal device to: receive, from a network device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals; and perform, based on the first configuration, the measurement of the sensing signal.
[0005] In a second aspect, there is provided a network device. The network device comprises a processor. The processor is configured to cause the network device to: transmit, to a terminal device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals.
[0006] In a third aspect, there is provided a method of communication. The method comprises: receiving, at a terminal device and from a network device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals; and performing, based on the first configuration, the measurement of the sensing signal.
[0007] In a fourth aspect, there is provided a method of communication. The method comprises: transmitting, at a network device and to a terminal device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals.
[0008] In a fifth aspect, there is provided a computer readable medium having instructions stored thereon. The instructions, when executed on at least one processor, cause the at least one processor to perform the method according to the third or fourth aspect of the present disclosure.
[0009] Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Through the more detailed description of some embodiments of the present disclosure in the accompanying drawings, the above and other objects, features and advantages of the present disclosure will become more apparent, wherein:
[0011] FIG. 1 illustrates an example communication network in which some embodiments of the present disclosure can be implemented;
[0012] FIG. 2 illustrates a schematic diagram illustrating a process of communication according to embodiments of the present disclosure;
[0013] FIG. 3A illustrates a schematic diagram illustrating an example MAC CE for an activation or deactivation of a measurement window according to embodiments of the present disclosure;
[0014] FIG. 3B illustrates a schematic diagram illustrating another example MAC CE for an activation or deactivation of a measurement window according to embodiments of the present disclosure;
[0015] FIG. 3C illustrates a schematic diagram illustrating an example MAC CE for an activation or deactivation of a measurement gap according to embodiments of the present disclosure;
[0016] FIG. 3D illustrates a schematic diagram illustrating another example MAC CE for an activation or deactivation of a measurement gap according to embodiments of the present disclosure;
[0017] FIG. 3E illustrates a schematic diagram illustrating an example MAC CE for requesting an activation or deactivation of a measurement gap according to embodiments of the present disclosure;
[0018] FIG. 3F illustrates a schematic diagram illustrating another example MAC CE for requesting an activation or deactivation of a measurement gap according to embodiments of the present disclosure;
[0019] FIG. 4 illustrates an example method of communication implemented at a terminal device in accordance with some embodiments of the present disclosure;
[0020] FIG. 5 illustrates an example method of communication implemented at a network device in accordance with some embodiments of the present disclosure; and
[0021] FIG. 6 illustrates a simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure.
[0022] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0023] Principle of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitations as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below.
[0024] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0025] As used herein, the term “terminal device” refers to any device having wireless or wired communication capabilities. Examples of the terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, tablets, wearable devices, Internet of things (IoT) devices, ultra-reliable and low latency communications (URLLC) devices, Internet of everything (IoE) devices, machine type communication (MTC) devices, device on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure / network, devices for integrated access and backhaul (IAB) , small data transmission (SDT) , mobility, multicast and broadcast services (MBS) , positioning, dynamic / flexible duplex in commercial networks, reduced capability (RedCap) , Space borne vehicles or air borne vehicles in non-terrestrial networks (NTN) including Satellites and high altitude platforms (HAPs) encompassing unmanned aircraft systems (UAS) , extended reality (XR) devices including different types of realities such as augmented reality (AR) , mixed reality (MR) and virtual reality (VR) , the unmanned aerial vehicle (UAV) commonly known as a drone which is an aircraft without any human pilot, devices on high speed train (HST) , or image capture devices such as digital cameras, sensors, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like. The “terminal device” can further has ‘multicast / broadcast’ feature, to support public safety and mission critical, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, radio services, software delivery over wireless, group communications and IoT applications. It may also incorporate one or multiple subscriber identity module (SIM) as known as multi-SIM. The term “terminal device” can be used interchangeably with a UE, a mobile station, a subscriber station, a mobile terminal, a user terminal or a wireless device.
[0026] The term “network device” refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate. Examples of a network device include, but not limited to, a Node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a next generation NodeB (gNB) , a transmission reception point (TRP) , a remote radio unit (RRU) , a radio head (RH) , a remote radio head (RRH) , an IAB node, a low power node such as a femto node, a pico node, a reconfigurable intelligent surface (RIS) , Network-controlled Repeaters, and the like.
[0027] The terminal device or the network device may have artificial intelligence (AI) or machine learning capability. It generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
[0028] The terminal or the network device may work on several frequency ranges, e.g. FR1 (410 MHz to 7125 MHz) , FR2 (24.25GHz to 71GHz) , frequency band larger than 100GHz as well as Tera Hertz (THz) . It can further work on licensed / unlicensed / shared spectrum. The terminal device may have more than one connections with the network devices under MR-DC application scenario. The terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
[0029] The network device may have the function of network energy saving, self-organizing networks (SON) / minimization of drive tests (MDT) . The terminal may have the function of power saving.
[0030] The embodiments of the present disclosure may be performed in test equipment, e.g. signal generator, signal analyzer, spectrum analyzer, network analyzer, test terminal device, test network device, channel emulator.
[0031] In one embodiment, the terminal device may be connected with a first network device and a second network device. One of the first network device and the second network device may be a master node and the other one may be a secondary node. The first network device and the second network device may use different radio access technologies (RATs) . In one embodiment, the first network device may be a first RAT device and the second network device may be a second RAT device. In one embodiment, the first RAT device is eNB and the second RAT device is gNB. Information related with different RATs may be transmitted to the terminal device from at least one of the first network device or the second network device. In one embodiment, first information may be transmitted to the terminal device from the first network device and second information may be transmitted to the terminal device from the second network device directly or via the first network device. In one embodiment, information related with configuration for the terminal device configured by the second network device may be transmitted from the second network device via the first network device. Information related with reconfiguration for the terminal device configured by the second network device may be transmitted to the terminal device from the second network device directly or via the first network device.
[0032] As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term “includes” and its variants are to be read as open terms that mean “includes, but is not limited to. ” The term “based on” is to be read as “at least in part based on. ” The term “one embodiment” and “an embodiment” are to be read as “at least one embodiment. ” The term “another embodiment” is to be read as “at least one other embodiment. ” The terms “first, ” “second, ” and the like may refer to different or same objects. Other definitions, explicit and implicit, may be included below.
[0033] In some examples, values, procedures, or apparatus are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
[0034] In the context of the present disclosure, the term “sensing measurement” or “sensing signal measurement” may refer to a functionality to get information about characteristics of an environment and / or objects within the environment (e.g. shape, size, orientation, speed, location, distance or relative motion between objects, etc. ) using new radio (NR) radio frequency (RF) signal and, in some cases, previously defined information available in evolved packet core (EPC) and / or evolved universal terrestrial radio access (E-UTRA) . The term “sensing transmitter” may be an entity that sends out a sensing signal which a sensing service will use in its operation. The term “sensing receiver” may be an entity that receives a sensing signal which a sensing service will use in its operation. The sensing transmitter may be located in the same or different entity as the sensing receiver.
[0035] For a sensing transmitter, a sensing signal may be a wireless signal sent by the sensing transmitter, such as a synchronization signal block (SSB) , a positioning reference signal (PRS) , a sounding reference signal (SRS) , a channel state information-reference signal (CSI-RS) , a demodulation reference signal (DMRS) or any other suitable signals. For a sensing receiver, a sensing signal may be a directly received or impacted (e.g., reflected, refracted or diffracted) wireless signal received by the sensing receiver. For convenience, in the following description, the term “sensing signal” refers to an RF signal used for a sensing service, and the term “wireless signal” refers to an RF signal used for a communication service.
[0036] Embodiments of the present disclosure provide a solution for a sensing signal measurement. In the solution, a network device transmits, to a terminal device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals. Based on the first configuration, the terminal device performs the measurement of the sensing signal. In this way, a dynamic switching between sparse sensing measurement and a dense sensing measurement may be carried out, and thus a sensing signal measurement may be flexibly performed and power consumption may be reduced.
[0037] Principles and implementations of the present disclosure will be described in detail below with reference to the figures.
[0038] EXAMPLE OF COMMUNICATION NETWORK
[0039] FIG. 1 illustrates a schematic diagram of an example communication network 100 in which some embodiments of the present disclosure can be implemented. As shown in FIG. 1, the communication network 100 may include a terminal device 110, a network device 120, a core network element 130 and an object 140.
[0040] In some embodiments, the network device 120 may provide one or more serving cells (not shown) to serve the terminal device 110. In the example of FIG. 1, the terminal device 110 may have sensing and communication functionalities (i.e., support ISAC) , and the network device 120 may have sensing and communication functionalities (i.e., support ISAC) . In some embodiments, the terminal device 110 may transmit a wireless signal to the network device 120, and / or receive a wireless signal from the network device 120.
[0041] In the example of FIG. 1, the terminal device 110 may be a sensing transmitter or a sensing receiver or both. The network device 120 may also be a sensing transmitter or a sensing receiver or both. A sensing transmitter may transmit a sensing signal towards the object 140, and the object 140 may reflect or refract or diffract the sensing signal to a sensing receiver.
[0042] There may be various sensing modes. In some embodiments, the sensing transmitter may be the network device 120, and the sensing receiver may be the terminal device 110. In some embodiments, the sensing transmitter may be the terminal device 110, and the sensing receiver may be the network device 120. In some embodiments, the sensing transmitter may be the network device 120, and the sensing receiver may be another network device not shown. In some embodiments, the sensing receiver may be the network device 120, and the sensing transmitter may be another network device not shown. In some embodiments, the sensing transmitter may be the terminal device 110, and the sensing receiver may be another terminal device not shown. In some embodiments, the sensing receiver may be the terminal device 110, and the sensing transmitter may be another terminal device not shown. In some embodiments, the sensing receiver and the sensing transmitter may be the same network device 120. In some embodiments, the sensing receiver and the sensing transmitter may be the same terminal device 110.
[0043] The core network element 130 may have a sensing function. In some embodiments, the terminal device 110 may communicate with the core network element 130 via the network device 120.
[0044] The terminal device 110 may communicate with the network device 120 via a Uu interface. The network device 120 may communicate with the core network element 130 via an Ng interface. The communications in the communication network 100 may conform to any suitable standards including, but not limited to, global system for mobile communications (GSM) , long term evolution (LTE) , LTE-evolution, LTE-advanced (LTE-A) , new radio (NR) , wideband code division multiple access (WCDMA) , code division multiple access (CDMA) , GSM EDGE radio access network (GERAN) , machine type communication (MTC) and the like. The embodiments of the present disclosure may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, 5.5G, 5G-advanced networks, or the sixth generation (6G) networks.
[0045] It is to be understood that the number of devices and / or objects in FIG. 1 is given for the purpose of illustration without suggesting any limitations to the present disclosure. The communication network 100 may include any suitable number of network devices and / or terminal devices and / or core network elements and / or objects adapted for implementing implementations of the present disclosure.
[0046] Generally, if sensing capability is integrated into a design of a communication system, sensing may be offered as a service alongside communications. How to measure a sensing signal inside an active downlink (DL) bandwidth part (BWP) and outside the active DL BWP is a key issue that should be solved.
[0047] In some cases, a sparse sensing measurement may be performed to save power. In some cases, a dense sensing measurement may be required to get a more accurate sensing result. Thus, a switching between the sparse sensing measurement and the dense sensing measurement may be beneficial.
[0048] In view of this, embodiments of the present disclosure provide a solution of communication for a sensing signal measurement so as to overcome the above and other potential issues. The detailed description will be made with reference to FIGs. 2 to 3F below.
[0049] EXAMPLE IMPLEMENTATION OF SENSING SIGNAL MEASUREMENT
[0050] FIG. 2 illustrates a schematic diagram illustrating a process 200 of communication according to embodiments of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1. The process 200 may involve the terminal device 110 and the network device 120 as illustrated in FIG. 1.
[0051] As shown in FIG. 2, the terminal device 110 may transmit 210, to the network device 120, assistance information for a measurement of a sensing signal (also referred to as a sensing measurement hereinafter) . In some embodiments, the terminal device 110 may transmit the assistance information via an RRC signaling, e.g., UEAssistanceInformation message or UECapabilityInformation message or any other suitable messages.
[0052] In some embodiments, the assistance information may comprise information of a carrier for which the sensing measurement is to be performed. For example, the assistance information may comprise a field indicating an absolute radio frequency channel number (ARFCN) value of the carrier for which the terminal device 110 needs to perform the sensing measurement. It is to be understood that any other suitable information of the carrier may also be feasible.
[0053] In some embodiments, the assistance information may comprise information of a preference on a measurement window or gap in a set of measurement windows or gaps. For example, the assistance information may comprise a field indicating a preferred periodicity of the measurement window or gap. In another example, the assistance information may comprise a field indicating a preferred offset of the measurement window or gap. In still another example, the assistance information may comprise a field indicating a preferred duration or length of the measurement window or gap. It is to be understood that any combination of the above information of the preference on the measurement window or gap may also be feasible.
[0054] It is also to be understood that any combination of the above assistance information or any other suitable assistance information may also be feasible. With the assistance information, the network device 120 may optimize a configuration of a measurement window or gap for a sensing measurement.
[0055] Continuing to refer to FIG. 2, the network device 120 may transmit 220, to the terminal device 110, a configuration (also referred to as a first configuration herein) for a sensing measurement.
[0056] In some embodiments, the first configuration may indicate a set of measurement windows for the sensing measurement. In other words, the network device 120 may configure one or more measurement windows where the terminal device 110 is expected to measure a sensing signal (e.g., a DL sensing signal) .
[0057] In some embodiments, the network device 120 may configure one or more measurement windows (e.g., sensing processing windows (SPWs) or sensing measurement windows (SMWs) ) where the terminal device 110 is expected to measure a sensing signal, e.g., if the one or more measurement windows are inside an active DL BWP and with the same numerology as the active DL BWP. In some embodiments where the first configuration is a configuration of a measurement window, the first configuration may comprise a field indicating an identity (ID) of the first configuration. In some embodiments, the first configuration may comprise a field indicating a periodicity and / or an offset of a starting timing (e.g., starting slot / symbol / subframe, etc. ) where each measurement window is configured. In some embodiments, the first configuration may comprise a field indicating a length / duration of each measurement window (e.g., in the unit of slot / symbol / subframe, etc. ) .
[0058] In some embodiments, the first configuration may indicate a set of measurement gaps for the sensing measurement. In other words, the network device 120 may configure one or more measurement gaps where the terminal device 110 is expected to measure a sensing signal (e.g., a DL sensing signal) .
[0059] In some embodiments, the network device 120 may configure one or more measurement gaps where the terminal device 110 is expected to measure a sensing signal, e.g., if the one or more measurement gaps are outside an active DL BWP, or inside the active DL BWP but with different numerologies from the active DL BWP. In some embodiments where the first configuration is a configuration of a measurement gap, the first configuration may comprise a field indicating an ID of the first configuration. In some embodiments, the first configuration may comprise a field indicating a periodicity and / or an offset of each measurement gap. In some embodiments, the first configuration may comprise a field indicating a length / duration of each measurement gap.
[0060] In some embodiments, the first configuration may indicate prioritization among the sensing signal and a set of DL signals. In some embodiments, the first configuration may comprise a field indicating the prioritization among the sensing signal and the set of DL signals. In other words, based on information of the prioritization, the terminal device 110 may identify whether a priority of the sensing signal (e.g., the DL sensing signal) is higher than a priority of other DL signals or channels. If the priority of the sensing signal is higher than the priority of other DL signals or channels, the terminal device 110 may determine that the terminal device 110 is expected to measure the sensing signal and is not expected to receive other DL signals or channels.
[0061] In some embodiments, the set of DL signals may comprise at least one of the following: a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , a channel status information-reference signal (CSI-RS) , or a positioning reference signal (PRS) .
[0062] In some embodiments, the prioritization may indicate that the sensing signal has a priority higher than a priority of a DL signal in the set of DL signals. For example, the field (e.g., priority) may be configured with a value “x1” where the DL sensing signal has a higher priority than all the DL signals and channels.
[0063] In some embodiments, the prioritization may indicate that the sensing signal has a priority lower than a priority of a PDCCH and a PDSCH scheduled by downlink control information (DCI) , and higher than a priority of a DL signal in the set of DL signals other than the PDCCH and the PDSCH scheduled by DCI. For example, the field (e.g., priority) may be configured with a value “x2” where the DL sensing signal has a priority lower than PDCCH and the PDSCH scheduled by DCI formats, and higher than other DL signals and channels.
[0064] In some embodiments, the prioritization may indicate that the sensing signal has a priority lower than a priority of a DL signal in the set of DL signals. For example, the field (e.g., priority) may be configured with a value “x3” where the DL sensing signal has a higher priority than all the DL signals and channels.
[0065] In some embodiments, the prioritization may indicate that the sensing signal has a priority lower than or equal to a priority of a PRS and higher than a priority of a DL signal in the set of DL signals other than the PRS. For example, the field (e.g., priority) may be configured with a value “x4” where the DL sensing signal has a priority lower than or equal to the PRS, and higher than all other DL signals and channels.
[0066] For illustration, an example configuration of a measurement window is described as below.
[0067] In this example, an information element (IE) “dl-SPW-ID” indicates an ID of a configuration of a measurement window, an IE “dl-SPW-PeriodicityAndStartOffset” indicates a periodicity and / or an offset of a starting timing where a measurement window is configured, an IE “length” indicates a length / duration of a measurement window, and an IE “priority” indicates a prioritization among a DL sensing signal and other DL signals. It is to be understood that a configuration of a measurement gap may be provided similarly.
[0068] For illustration, an example procedure during an activated measurement gap may be described as below.
[0069] During an activated measurement gap, a MAC entity shall, on the Serving Cell (s) in the corresponding frequency range of the measurement gap:
[0070] 1> not perform the transmission of HARQ feedback, SR, and CSI;
[0071] 1> not report SRS;
[0072] 1> not transmit on UL-SCH except for Msg3 or the MsgA payload;
[0073] 1> if the ra-ResponseWindow or the ra-ContentionResolutionTimer or the msgB-ResponseWindow is running:
[0074] 2> monitor the PDCCH;
[0075] 1> else:
[0076] 2> not monitor the PDCCH;
[0077] 2> not receive on DL-SCH.
[0078] In some embodiments, a subset of measurement windows or gaps in the set of measurement windows or gaps may be associated with a DL BWP. In some embodiments, upon activation of the DL BWP, the terminal device 110 may determine that the first configuration is activated for the subset of measurement windows or gaps. In some embodiments, upon activation of the DL BWP, the terminal device 110 may determine that the first configuration is deactivated for the subset of measurement windows or gaps. In some embodiments, upon a reconfiguration of the subset of measurement windows or gaps of the DL BWP, the terminal device 110 may determine that the first configuration is activated for the subset of measurement windows or gaps. In some embodiments, upon a reconfiguration of the subset of measurement windows or gaps of the DL BWP, the terminal device 110 may determine that the first configuration is deactivated for the subset of measurement windows or gaps.
[0079] For illustration, an example procedure may be described as below.
[0080] Upon activation of DL BWP, or upon reconfiguration of SPW / SMW (s) of the active DL BWP, the SPW / SMW (s) configured for that BWP are considered 1) deactivated; or 2) activated.
[0081] Upon the reception of the MAC CE for SPW / SMW Activation / Deactivation Command, the MAC entity shall:
[0082] 1> if the DL MAC CE for SPW / SMW Activation / Deactivation Command indicates the deactivation of a pre-configured SPW / SMW:
[0083] 2> deactivate the SPW / SMW.
[0084] 1> else if the DL MAC CE for SPW / SMW Activation / Deactivation Command indicates the activation of a pre-configured SPW / SMW:
[0085] 2> activate the SPW / SMW.
[0086] With reference to FIG. 2, the network device 120 may transmit 220’, to the terminal device 110, a configuration (for convenience, also referred to as a third configuration herein) for a request of an activation or deactivation of a measurement gap. In some embodiments, the network device 120 may configure, to the terminal device 110 via a radio resource control (RRC) signaling, a field (e.g., sensingMG-Request) indicating whether the terminal device 110 is configured to send a UL MAC CE for a sensing measurement gap activation / deactivation request. In some embodiments, if the terminal device 110 is configured with pre-configured sensing measurement gap and / or the request of the activation / deactivation of the sensing measurement gap by UL MAC CE, the terminal device 110 may request the network device 120 to activate or deactivate the sensing measurement gap with UL MAC CE for sensing measurement gap activation / deactivation request.
[0087] With reference to FIG. 2, the network device 120 may transmit 220” , to the terminal device 110, a configuration (for convenience, also referred to as a second configuration herein) of a scheduling request (SR) for the request of the activation or deactivation of the measurement gap. In some embodiments, the network device 120 may configure, to the terminal device 110 via an RRC signaling, a field (e.g., schedulingRequestID-SensingMG-Request) indicating the SR configuration applicable for sensing measurement gap activation / deactivation request. That is, for sensing measurement gap activation / deactivation request, a dedicated SR configuration is configured.
[0088] Continuing to refer to FIG. 2, the network device 120 may transmit 230, to the terminal device 110, an indication indicating an activation or deactivation of the sensing measurement on at least one measurement window or gap in the set of measurement windows or gaps.
[0089] In some embodiments, the network device 120 may transmit the indication via a medium access control (MAC) control element (CE) . Compared with RRC configuration, MAC CE activation / deactivation may reduce a configuration latency.
[0090] In some embodiments, the MAC CE may comprise at least one of the following: an ID of a serving cell; an ID of an area for which the measurement applies; an ID of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a set of indications of the activation or deactivation for the at least one measurement window or gap.
[0091] In some embodiments, if the terminal device 110 is configured with pre-configured measurement windows (e.g., SPW / SMW) , the network device 120 may transmit a DL MAC CE for SPW / SMW activation / deactivation command to the terminal device 110. In some embodiments, a logical channel identity (LCID) or extended LCID (eLCID) in a MAC subheader may be introduced to identify the DL MAC CE for SPW / SMW activation / deactivation command. For illustration, example MAC CEs will be described in connection with FIGs. 3A and 3B.
[0092] FIG. 3A illustrates a schematic diagram illustrating an example MAC CE 300A for an activation or deactivation of a measurement window according to embodiments of the present disclosure. The MAC CE 300A is used for an activation or deactivation of a measurement window (e.g., SPW / SMW) . As shown in FIG. 3A, the MAC CE 300A may include multiple entries. Each entry may include a field “Serving Cell ID” , a field “SPW / SMW ID” and a field “A / D” .
[0093] The field “Serving Cell ID” indicates an ID of the serving cell for which the MAC CE 300A applies. The field “SPW / SMW ID” indicates an index of a SPW / SMW configured on an active DL BWP (e.g., corresponding to a serving cell identified by the above Serving Cell ID) . For example, index 0 corresponds to the first entry within a list of the first configuration in this BWP, index 1 corresponds to the second entry in the list, and so on. The field “A / D” indicates an activation or deactivation of the measurement window. The field “A / D” may be set to 1 to indicate the activation of the measurement window, and may be set to 0 to indicate the deactivation of the measurement window. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0094] With reference to FIG. 3A, the MAC CE 300A may also include a field “numEntry” and a field “R” . The field “numEntry” indicates number of entries in the MAC CE 300A. The field “R” indicates a reserved bit, e.g., set to 0. It is to be understood that the field “Serving Cell ID” in the MAC CE 300A may be replaced with a field “Area ID” indicating an ID of an area for which the MAC CE 300A applies. Alternatively, the field “Area ID” may be additionally included in the MAC CE 300A.
[0095] In some embodiments, the DL MAC CE may comprise a set of fields corresponding to a set of measurement windows, and a field in the set of fields indicates the activation or deactivation of a measurement window in the set of measurement windows that corresponds to the field. FIG. 3B illustrates a schematic diagram illustrating another example MAC CE 300B for an activation or deactivation of a measurement window according to embodiments of the present disclosure. An example MAC CE of one octet is shown.
[0096] As shown in FIG. 3B, the MAC CE 300B may include fields Mi, where i = 0 to 7. Mi indicates an activation or deactivation of a measurement window i. The field Mi may be set to 1 to indicate that the measurement window i shall be activated. The field Mi may be set to 0 to indicate that the measurement window i shall be deactivated. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0097] In some embodiments, if the terminal device 110 is configured with pre-configured measurement gaps, the network device 120 may transmit a DL MAC CE for sensing measurement gap activation / deactivation command to the terminal device 110. In some embodiments, a logical channel identity (LCID) or extended LCID (eLCID) in a MAC subheader may be introduced to identify the DL MAC CE for sensing measurement gap activation / deactivation command. For illustration, example MAC CEs will be described in connection with FIGs. 3C and 3D.
[0098] FIG. 3C illustrates a schematic diagram illustrating an example MAC CE 300C for an activation or deactivation of a measurement gap according to embodiments of the present disclosure. The MAC CE 300C is used for an activation or deactivation of a measurement gap (MG) . As shown in FIG. 3C, the MAC CE 300C may include a field “Serving Cell ID” , a field “A / D” and a field “Sensing MG ID” .
[0099] The field “Serving Cell ID” indicates an ID of the serving cell for which the MAC CE 300C applies. The field “Sensing MG ID” indicates an identifier of a pre-configured sensing measurement gap. The field “A / D” indicates an activation or deactivation of the sensing measurement gap. The field “A / D” may be set to 1 to indicate the activation of the sensing measurement gap, and may be set to 0 to indicate the deactivation of the sensing measurement gap. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0100] It is to be understood that the field “Serving Cell ID” in the MAC CE 300C may be replaced with a field “Area ID” indicating an ID of an area for which the MAC CE 300C applies. Alternatively, the field “Area ID” may be additionally included in the MAC CE 300C.
[0101] In some embodiments, the DL MAC CE may comprise a set of fields corresponding to a set of measurement gaps, and a field in the set of fields indicates the activation or deactivation of a measurement gap in the set of measurement gaps that corresponds to the field. FIG. 3D illustrates a schematic diagram illustrating another example MAC CE 300D for an activation or deactivation of a measurement gap according to embodiments of the present disclosure. An example MAC CE of one octet is shown.
[0102] As shown in FIG. 3D, the MAC CE 300D may include fields Ni, where i = 0 to 7. Ni indicates an activation or deactivation of a measurement gap i. The field Ni may be set to 1 to indicate that the measurement gap i shall be activated. The field Ni may be set to 0 to indicate that the measurement gap i shall be deactivated. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0103] In some embodiments, the network device 120 may transmit, via DCI, the indication indicating the activation or deactivation of the sensing measurement on the at least one measurement window or gap. In some embodiments, the DCI may comprise at least one of the following: an indication of whether the measurement of the sensing signal in a DL BWP is enabled; an identity of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a bitmap indicating the activation or deactivation for the at least one measurement window or gap.
[0104] In some embodiments, if the terminal device 110 is configured with a pre-configured SPW or SMW, the network device 120 may transmit the DCI to the terminal device 110 to activate or deactivate the SPW or SMW. In some embodiments, the DCI may carry a field indicating whether the sensing measurement or sensing measurement in the active DL BWP is enabled / activated. In some embodiments, the DCI may carry a field “SPW / SMW ID” indicating an index of the SPW / SMW configured on the active DL BWP. In some embodiments, the DCI may carry a field “A / D” to indicate the activation or deactivation of the SPW / SMW. The field “A / D” is set to 1 to indicate the activation, and is set to 0 to indicate the deactivation. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect. In some embodiments, the DCI may carry a bitmap indicating an activation status of each pre-configured SPW / SMW. For example, value 1 indicates activation of a corresponding SPW / SMW, and value 0 indicates deactivation of a corresponding SPW / SMW. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0105] In some embodiments, if the terminal device 110 is configured with a pre-configured sensing measurement gap, the network device 120 may transmit the DCI to the terminal device 110 to activate or deactivate the measurement gap. In some embodiments, the DCI may carry a field indicating whether the sensing measurement gap is enabled / activated. In some embodiments, the DCI may carry a field “measurement gap ID” indicating an index of the pre-configured measurement gap to be activated / deactivated. In some embodiments, the DCI may carry a field “A / D” to indicate the activation or deactivation of the measurement gap. The field “A / D” is set to 1 to indicate the activation, and is set to 0 to indicate the deactivation. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect. In some embodiments, the DCI may carry a bitmap indicating an activation status of each pre-configured measurement gap. For example, value 1 indicates activation of a corresponding measurement gap, and value 0 indicates deactivation of a corresponding measurement gap. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0106] With reference to FIG. 2, in some embodiments, the terminal device 110 may transmit 231, to the network device 120, a MAC CE (for convenience, also referred to as a first MAC CE herein) for requesting the activation or deactivation of the at least one measurement gap.
[0107] In some embodiments, if the terminal device 110 is configured with pre-configured sensing measurement gap and / or the request of the activation / deactivation of the sensing measurement gap by UL MAC CE, the terminal device 110 may request the network device 120 to activate or deactivate the sensing measurement gap with UL MAC CE for sensing measurement gap activation / deactivation request.
[0108] In some embodiments, the first MAC CE may comprise at least one of the following: an ID of a measurement gap in the at least one measurement gap; an identity of an area for which the first MAC CE applies; an indication of the activation or deactivation for the measurement gap; or a set of indications of the activation or deactivation for the at least one measurement gap. For illustration, examples of the first MAC CE will be described in connection with FIGs. 3E and 3F.
[0109] FIG. 3E illustrates a schematic diagram illustrating an example MAC CE 300E for requesting an activation or deactivation of a measurement gap according to embodiments of the present disclosure. As shown in FIG. 3E, the MAC CE 300E may include a field “R” , a field “A / D” and a field “Sensing MG ID” .
[0110] The field “R” indicates a reserved bit, e.g., set to 0. The field “Sensing MG ID” indicates an identifier of a pre-configured sensing measurement gap. The field “A / D” indicates an activation or deactivation of the sensing measurement gap. The field “A / D” may be set to 1 to indicate the activation of the sensing measurement gap, and may be set to 0 to indicate the deactivation of the sensing measurement gap. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect. It is to be understood that although not shown, a field “Area ID” indicating an ID of an area for which the MAC CE 300E applies may be additionally included in the MAC CE 300E.
[0111] In some embodiments, the first MAC CE may comprise a set of fields corresponding to a set of measurement gaps, and a field in the set of fields indicates the activation or deactivation of a measurement gap in the set of measurement gaps that corresponds to the field. FIG. 3F illustrates a schematic diagram illustrating another example MAC CE 300F for requesting an activation or deactivation of a measurement gap according to embodiments of the present disclosure. As shown in FIG. 3F, the MAC CE 300F may include fields Ti, where i = 0 to 7. Ti indicates an activation or deactivation of a measurement gap i. The field Ti may be set to 1 to indicate that the measurement gap i shall be activated. The field Ti may be set to 0 to indicate that the measurement gap i shall be deactivated. It is to be understood that any other suitable values may also be feasible, and the present disclosure does not limit this aspect.
[0112] In some embodiments, during a logical channel prioritization (LCP) procedure, the first MAC CE may be prioritized over a MAC CE (for convenience, also referred to as a second MAC CE herein) for requesting an activation or deactivation of a measurement gap for a PRS measurement. That is, the first MAC CE may be put before the second MAC CE during the LCP procedure. In some embodiments, during the LCP procedure, the second MAC CE may be prioritized over the first MAC CE. That is, the first MAC CE may be put after the second MAC CE during the LCP procedure.
[0113] For illustration, an example procedure of an RRC layer may be described as below.
[0114] 1> if at least one is satisfied: 1) upper layers indicate to start performing sensing measurements, 2) the UE requires measurement gaps for these operations while measurement gaps are either not configured or not sufficient; 3) if preconfigured measurement gaps for sensing and sensingMG-Request are configured and the UE considers that at least one of the preconfigured measurement gaps for sensing is sufficient for the sensing measurement when activated:
[0115] 2> trigger the lower layers (e.g., MAC layer) to initiate the sensing measurement gap activation request using UL MAC CE;
[0116] 1> if upper layers indicate to stop performing sensing measurements:
[0117] 2> if there is no activated preconfigured measurement gap for sensing:
[0118] 3> if there is previously triggered UL MAC CE transmission for the measurement gap activation for sensing:
[0119] 4> indicate to the lower layers (MAC layer) to cancel the triggered UL MAC CE transmission for the sensing measurement gap activation;
[0120] 2> else if there is activated preconfigured measurement gap for sensing:
[0121] 3> trigger the lower layers (e.g., MAC layer) to deactivate all the activated measurement gap (s) for sensing.
[0122] For illustration, an example procedure of a MAC layer may be described as below.
[0123] The MAC entity shall, when triggered by the upper layer (e.g., RRC layer) to send sensing measurement gap activation / deactivation request, cancel the triggered sensing measurement gap activation / deactivation request, if any and trigger another sensing measurement gap activation / deactivation request according to the upper layer's request.
[0124] The MAC entity shall,
[0125] 1>if sensing measurement gap activation / deactivation request MAC CE has been triggered, and not cancelled:
[0126] 2> if indication from upper layer (e.g., RRC layer) has been received that the triggered sensing measurement gap activation / deactivation request MAC CE should be cancelled; or
[0127] 2> if the pre-configured measurement gap indicated in the sensing measurement gap activation / deactivation request MAC CE has already been activated / deactivated:
[0128] 3> cancel the triggered sensing measurement gap activation / deactivation request MAC CE.
[0129] 2> if UL-SCH resources are available for a new transmission and these UL-SCH resources can accommodate the sensing measurement gap activation / deactivation request MAC CE plus its subheader as a result of logical channel prioritization:
[0130] 3> instruct a multiplexing and assembly procedure to generate the sensing measurement gap activation / deactivation request MAC CE according to the upper layer's request;
[0131] 3> cancel triggered sensing measurement gap activation / deactivation request MAC CE.
[0132] 2> else:
[0133] 3> trigger a scheduling request for sensing measurement gap activation / deactivation request MAC CE.
[0134] In some embodiments, if there are no available resources for transmission of the first MAC CE, the terminal device 110 may transmit an SR to the network device 120 based on the second configuration (i.e., an SR configuration of a sensing measurement gap activation / deactivation request) . In some embodiments, the SR configuration of a sensing measurement gap activation / deactivation request may be considered as a corresponding SR configuration for the triggered SR.
[0135] In some embodiments, if the SR is triggered by the first MAC CE, the terminal device 110 may cancel a set of pending SRs. In some embodiments, if the first MAC CE triggering the SR has been cancelled, the terminal device 110 may cancel the set of pending SRs.
[0136] For illustration, an example procedure may be described as below.
[0137] 1> if the SR is triggered by sensing measurement gap activation / deactivation request and / or the sensing measurement gap activation / deactivation request MAC CE that triggers the SR has already been cancelled;
[0138] 2> cancel the pending SR and stop the corresponding SR Prohibit Timer, if running.
[0139] In some embodiments, if the first MAC CE triggering the SR has been cancelled, the terminal device 110 may stop an ongoing RA procedure due to the SR for the first MAC CE.
[0140] For illustration, an example procedure may be described as below.
[0141] The MAC entity may stop, if any, ongoing random access procedure due to a pending SR for sensing measurement gap activation / deactivation request, which has no valid PUCCH resources configured, if:
[0142] - the sensing measurement gap activation / deactivation request MAC CE that triggers the SR corresponding to the random access procedure has already been cancelled.
[0143] In some embodiments, if a reset of a MAC entity of the terminal device 110 is requested by upper layers of the terminal device or the reset of the MAC entity is triggered due to secondary cell group (SCG) deactivation, the terminal device 110 may cancel the transmission of the first MAC CE.
[0144] For illustration, an example procedure may be described as below.
[0145] If a reset of the MAC entity is requested by upper layers or the reset of the MAC entity is triggered due to SCG deactivation, the MAC entity shall:
[0146] 1> cancel, if any, triggered sensing measurement gap activation / deactivation request procedure.
[0147] As shown in FIG. 2, in response to the first MAC CE, the network device 120 may transmit 232, to the terminal device 110, the indication indicating the activation or deactivation of the at least one measurement gap via the MAC CE or DCI as described above in connection with the step 230.
[0148] Continuing to refer to FIG. 2, if the at least one measurement window or gap is activated, the terminal device 110 may perform 240 the sensing measurement on the at least one measurement window or gap. If the at least one measurement window or gap is deactivated, the terminal device 110 may not perform 250 the sensing measurement on the at least one measurement window or gap.
[0149] For illustration, an example procedure for a sensing measurement gap may be described as below.
[0150] Upon the reception of the MAC CE for sensing measurement gap activation / deactivation command, the MAC entity shall:
[0151] 1> if the sensing measurement gap activation / deactivation command MAC CE indicates the deactivation of a pre-configured sensing measurement gap:
[0152] 2> deactivate the sensing measurement gap;
[0153] 1> else if the sensing measurement gap activation / deactivation command MAC CE indicates the activation of a pre-configured sensing measurement gap:
[0154] 2> activate the sensing measurement gap and perform a general procedure for handling of measurement.
[0155] In some embodiments, the terminal device 110 may determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated; or the sensing signal has a higher priority than the set of DL signals. In this case, if no ongoing random access (RA) procedure is performed, the terminal device 110 may not perform a DL channel (e.g., PDCCH and / or DL-SCH) monitoring.
[0156] For illustration, an example procedure for SPW / SMW may be described as below.
[0157] When at least one is satisfied: 1) SPW / SMW is activated; 2) sensing signal has higher priority than DL channel and signals (including or excluding PRS) , for the affected symbols within the SPW / SMW, a MAC entity shall:
[0158] 1> if the ra-ResponseWindow or the ra-ContentionResolutionTimer or the msgB-ResponseWindow is running:
[0159] 2> monitor the PDCCH;
[0160] 1> else:
[0161] 2> not receive DL-SCH;
[0162] 2> not receive PDCCH.
[0163] In some embodiments, the terminal device 110 may determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated; or the sensing signal has a priority lower than a priority of a PRS. In this case, the terminal device 110 may not receive the sensing signal.
[0164] For illustration, an example procedure for SPW / SMW may be described as below.
[0165] If 1) SPW / SMW is activated; and / or 2) sensing signal has lower priority than PRS signals, for the overlapped / affected symbols within the SPW / SMW, UE shall not receive the sensing signal.
[0166] With the process 200, a dynamic switching between sparse sensing measurement and a dense sensing measurement may be facilitated, and a sensing signal measurement may be flexibly performed and power consumption may be reduced. It is to be understood that operations in the process 200 may be carried out in any suitable combination or order and are not limited to the above examples.
[0167] EXAMPLE IMPLEMENTATION OF METHODS
[0168] Accordingly, embodiments of the present disclosure provide methods of communication implemented at a terminal device and a network device. These methods will be described below with reference to FIGs. 4 and 5.
[0169] FIG. 4 illustrates an example method 400 of communication implemented at a terminal device in accordance with some embodiments of the present disclosure. For example, the method 400 may be performed at the terminal device 110 as shown in FIG. 1. For the purpose of discussion, in the following, the method 400 will be described with reference to the terminal device 110 in FIG. 1. It is to be understood that the method 400 may include additional blocks not shown and / or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
[0170] At block 410, the terminal device 110 receives, from the network device 120, a first configuration for a measurement of a sensing signal. In some embodiments, the first configuration may indicate at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of DL signals.
[0171] In some embodiments, the prioritization may indicate one of the following: the sensing signal has a priority higher than a priority of a DL signal in the set of DL signals; the sensing signal has a priority lower than a priority of a PDCCH and a PDSCH scheduled by DCI, and higher than a priority of a DL signal in the set of DL signals other than the PDCCH and the PDSCH scheduled by the DCI; the sensing signal has a priority lower than a priority of a DL signal in the set of DL signals; or the sensing signal has a priority lower than or equal to a priority of a PRS and higher than a priority of a DL signal in the set of DL signals other than the PRS.
[0172] At block 420, the terminal device 110 performs the measurement of the sensing signal based on the first configuration.
[0173] In some embodiments, the terminal device 110 may receive, from the network device 120, a MAC CE or DCI indicating an activation or deactivation of the measurement of the sensing signal on at least one measurement window or gap in the set of measurement windows or gaps. If the at least one measurement window or gap is activated, the terminal device 110 may perform the measurement of the sensing signal on the at least one measurement window or gap. If the at least one measurement window or gap is deactivated, the terminal device 110 may perform no measurement of the sensing signal on the at least one measurement window or gap.
[0174] In some embodiments, the MAC CE may comprise at least one of the following: an identity of a serving cell; an identity of an area for which the measurement applies; an identity of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a set of indications of the activation or deactivation for the at least one measurement window or gap.
[0175] In some embodiments, the DCI may comprise at least one of the following: an indication of whether the measurement of the sensing signal in a DL BWP is enabled; an identity of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a bitmap indicating the activation or deactivation for the at least one measurement window or gap.
[0176] In some embodiments, a subset of measurement windows or gaps in the set of measurement windows or gaps is associated with a DL BWP. In these embodiments, the terminal device 110 may determine that the first configuration is activated or deactivated for the subset of measurement windows or gaps based on at least one of the following: an activation of the DL BWP; or a reconfiguration of the subset of measurement windows or gaps of the DL BWP.
[0177] In some embodiments, the terminal device 110 may determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated, or the sensing signal has a higher priority than the set of DL signals. In these embodiments, if no ongoing random access procedure is performed, the terminal device 110 may not perform a downlink channel monitoring.
[0178] In some embodiments, the terminal device 110 may determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated, or the sensing signal has a priority lower than a priority of a PRS. In these embodiments, the terminal device 110 may not receive the sensing signal.
[0179] In some embodiments, the terminal device 110 may transmit, to the network device 120, assistance information for the measurement of the sensing signal. In some embodiments, the assistance information may comprise at least one of the following: information of a carrier for which the measurement is to be performed; a preferred periodicity of a measurement window or gap in the set of measurement windows or gaps; a preferred offset of the measurement window or gap; or a preferred duration of the measurement window or gap.
[0180] In some embodiments, the terminal device 110 may transmit, to the network device 120, a first MAC CE for requesting an activation or deactivation of at least one measurement gap in the set of measurement gaps. In some embodiments, the first MAC CE may comprise at least one of the following: an identity of a measurement gap in the at least one measurement gap; an identity of an area for which the first MAC CE applies; an indication of the activation or deactivation for the measurement gap; or a set of indications of the activation or deactivation for the at least one measurement gap.
[0181] In some embodiments, the first MAC CE may be prioritized over a second MAC CE for requesting an activation or deactivation of a measurement gap for a PRS measurement during an LCP procedure. In some embodiments, the second MAC CE may be prioritized over the first MAC CE during the LCP procedure.
[0182] In some embodiments, the terminal device 110 may receive, from the network device, a second configuration for an SR for the first MAC CE. In some embodiments, the terminal device 110 may cancel a set of pending SRs based on at least one of the following: the SR is triggered by the first MAC CE, or the first MAC CE triggering the SR has been cancelled. In some embodiments, if the first MAC CE triggering the SR has been cancelled, the terminal device 110 may stop an ongoing random access procedure due to the SR for the first MAC CE. In some embodiments, if a reset of a MAC entity of the terminal device is requested by upper layers of the terminal device 110 or the reset of the MAC entity is triggered due to SCG deactivation, the terminal device 110 may cancel a transmission of the first MAC CE.
[0183] With the method 400, a sensing signal measurement may be carried out.
[0184] FIG. 5 illustrates an example method 500 of communication implemented at a network device in accordance with some embodiments of the present disclosure. For example, the method 500 may be performed at the network device 120 as shown in FIG. 1. For the purpose of discussion, in the following, the method 500 will be described with reference to the network device 120 in FIG. 1. It is to be understood that the method 500 may include additional blocks not shown and / or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
[0185] As shown in FIG. 5, at block 510, the network device 120 transmits, to the terminal device 110, a first configuration for a measurement of a sensing signal. In some embodiments, the first configuration may indicate at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of DL signals.
[0186] In some embodiments, the prioritization may indicate one of the following: the sensing signal has a priority higher than a priority of a DL signal in the set of DL signals; the sensing signal has a priority lower than a priority of a PDCCH and a PDSCH scheduled by DCI, and higher than a priority of a DL signal in the set of DL signals other than the PDCCH and the PDSCH scheduled by the DCI; the sensing signal has a priority lower than a priority of a DL signal in the set of DL signals; or the sensing signal has a priority lower than or equal to a priority of a PRS and higher than a priority of a DL signal in the set of DL signals other than the PRS.
[0187] In some embodiments, the network device 120 may transmit, to the terminal device 110, a MAC CE or DCI indicating an activation or deactivation of the measurement of the sensing signal on at least one measurement window or gap in the set of measurement windows or gaps.
[0188] In some embodiments, the MAC CE may comprise at least one of the following: an identity of a serving cell; an identity of an area for which the measurement applies; an identity of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a set of indications of the activation or deactivation for the at least one measurement window or gap.
[0189] In some embodiments, the DCI may comprise at least one of the following: an indication of whether the measurement of the sensing signal in a DL BWP is enabled; an identity of a measurement window or gap in the at least one measurement window or gap; an indication of the activation or deactivation for the measurement window or gap; or a bitmap indicating the activation or deactivation for the at least one measurement window or gap.
[0190] In some embodiments, the network device 120 may receive, from the terminal device 110, assistance information for the measurement of the sensing signal. In some embodiments, the assistance information may comprise at least one of the following: information of a carrier for which the measurement is to be performed; a preferred periodicity of a measurement window or gap in the set of measurement windows or gaps; a preferred offset of the measurement window or gap; or a preferred duration of the measurement window or gap.
[0191] In some embodiments, the network device 120 may receive, from the terminal device 110, a first MAC CE for requesting an activation or deactivation of at least one measurement gap in the set of measurement gaps. In some embodiments, the first MAC CE may comprise at least one of the following: an identity of a measurement gap in the at least one measurement gap; an identity of an area for which the first MAC CE applies; an indication of the activation or deactivation for the measurement gap; or a set of indications of the activation or deactivation for the at least one measurement gap.
[0192] In some embodiments, the network device 120 may transmit, to the terminal device 110, a second configuration for an SR for the first MAC CE.
[0193] With the method 500, a sensing signal measurement may be facilitated.
[0194] It is to be understood that operations of the methods 400 and 500 correspond to the process described in connection with FIGs. 2 to 3F, and thus other details are omitted here for conciseness.
[0195] EXAMPLE IMPLEMENTATION OF DEVICES
[0196] FIG. 6 is a simplified block diagram of a device 600 that is suitable for implementing embodiments of the present disclosure. The device 600 can be considered as a further example implementation of the terminal device 110 or the network device 120 as shown in FIG. 1. Accordingly, the device 600 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
[0197] As shown, the device 600 includes a processor 610, a memory 620 coupled to the processor 610, a suitable transceiver 640 coupled to the processor 610, and a communication interface coupled to the transceiver 640. The memory 610 stores at least a part of a program 630. The transceiver 640 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 640 may include at least one of a transmitter 642 or a receiver 644. The transmitter 642 and the receiver 644 may be functional modules or physical entities. The transceiver 640 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones. The communication interface may represent any interface that is necessary for communication with other network elements, such as X2 / Xn interface for bidirectional communications between eNBs / gNBs, S1 / NG interface for communication between a Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / SGW / UPF and the eNB / gNB, Un interface for communication between the eNB / gNB and a relay node (RN) , or Uu interface for communication between the eNB / gNB and a terminal device.
[0198] The program 630 is assumed to include program instructions that, when executed by the associated processor 610, enable the device 600 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGs. 1 to 5. The embodiments herein may be implemented by computer software executable by the processor 610 of the device 600, or by hardware, or by a combination of software and hardware. The processor 610 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 610 and memory 620 may form processing means 650 adapted to implement various embodiments of the present disclosure.
[0199] The memory 620 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 620 is shown in the device 600, there may be several physically distinct memory modules in the device 600. The processor 610 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 600 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0200] In some embodiments, a terminal device comprises a circuitry configured to: receive, from a network device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals; and perform, based on the first configuration, the measurement of the sensing signal.
[0201] In some embodiments, a network device comprises a circuitry configured to: transmit, to a terminal device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following: a set of measurement windows or gaps for the measurement of the sensing signal, or prioritization among the sensing signal and a set of downlink signals.
[0202] The term “circuitry” used herein may refer to hardware circuits and / or combinations of hardware circuits and software. For example, the circuitry may be a combination of analog and / or digital hardware circuits with software / firmware. As a further example, the circuitry may be any portions of hardware processors with software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a terminal device or a network device, to perform various functions. In a still further example, the circuitry may be hardware circuits and or processors, such as a microprocessor or a portion of a microprocessor, that requires software / firmware for operation, but the software may not be present when it is not needed for operation. As used herein, the term circuitry also covers an implementation of merely a hardware circuit or processor (s) or a portion of a hardware circuit or processor (s) and its (or their) accompanying software and / or firmware.
[0203] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0204] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the process or method as described above with reference to FIGs. 1 to 5. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0205] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0206] The above program code may be embodied on a machine readable medium, which may be any tangible medium that may contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine readable medium may be a machine readable signal medium or a machine readable storage medium. A machine readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0207] Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0208] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A terminal device, comprising:a processor configured to cause the terminal device to:receive, from a network device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following:a set of measurement windows or gaps for the measurement of the sensing signal, orprioritization among the sensing signal and a set of downlink signals; andperform, based on the first configuration, the measurement of the sensing signal.2.The terminal device of claim 1, wherein the prioritization indicates one of the following:the sensing signal has a priority higher than a priority of a downlink signal in the set of downlink signals;the sensing signal has a priority lower than a priority of a physical downlink control channel and a physical downlink shared channel scheduled by downlink control information, and higher than a priority of a downlink signal in the set of downlink signals other than the physical downlink control channel and the physical downlink shared channel scheduled by the downlink control information;the sensing signal has a priority lower than a priority of a downlink signal in the set of downlink signals; orthe sensing signal has a priority lower than or equal to a priority of a positioning reference signal and higher than a priority of a downlink signal in the set of downlink signals other than the positioning reference signal.3.The terminal device of claim 1, wherein the terminal device is caused to perform the measurement of the sensing signal by:receiving, from the network device, a medium access control (MAC) control element (CE) or downlink control information (DCI) indicating an activation or deactivation of the measurement of the sensing signal on at least one measurement window or gap in the set of measurement windows or gaps;in accordance with a determination that the at least one measurement window or gap is activated, performing the measurement of the sensing signal on the at least one measurement window or gap; andin accordance with a determination that the at least one measurement window or gap is deactivated, performing no measurement of the sensing signal on the at least one measurement window or gap.4.The terminal device of claim 3, wherein the MAC CE comprises at least one of the following:an identity of a serving cell;an identity of an area for which the measurement applies;an identity of a measurement window or gap in the at least one measurement window or gap;an indication of the activation or deactivation for the measurement window or gap; ora set of indications of the activation or deactivation for the at least one measurement window or gap.5.The terminal device of claim 3, wherein the DCI comprises at least one of the following:an indication of whether the measurement of the sensing signal in a downlink bandwidth part (BWP) is enabled;an identity of a measurement window or gap in the at least one measurement window or gap;an indication of the activation or deactivation for the measurement window or gap; ora bitmap indicating the activation or deactivation for the at least one measurement window or gap.6.The terminal device of claim 1, wherein a subset of measurement windows or gaps in the set of measurement windows or gaps is associated with a downlink bandwidth part (BWP) , and wherein the terminal device is further caused to:determine that the first configuration is activated or deactivated for the subset of measurement windows or gaps based on at least one of the following:an activation of the downlink BWP; ora reconfiguration of the subset of measurement windows or gaps of the downlink BWP.7.The terminal device of claim 1, wherein the terminal device is further caused to:determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated, or the sensing signal has a higher priority than the set of downlink signals; andin accordance with a determination that no ongoing random access procedure is performed, perform no downlink channel monitoring.8.The terminal device of claim 1, wherein the terminal device is further caused to:determine at least one of the following: a measurement window or gap in the set of measurement windows or gaps is activated, or the sensing signal has a priority lower than a priority of a positioning reference signal; andreceive no sensing signal.9.The terminal device of claim 1, wherein the terminal device is further caused to:transmit, to the network device, assistance information for the measurement of the sensing signal comprising at least one of the following:information of a carrier for which the measurement is to be performed;a preferred periodicity of a measurement window or gap in the set of measurement windows or gaps;a preferred offset of the measurement window or gap; ora preferred duration of the measurement window or gap.10.The terminal device of claim 1, wherein the terminal device is further caused to:transmit, to the network device, a first medium access control (MAC) control element (CE) for requesting an activation or deactivation of at least one measurement gap in the set of measurement gaps, the first MAC CE comprising at least one of the following:an identity of a measurement gap in the at least one measurement gap;an identity of an area for which the first MAC CE applies;an indication of the activation or deactivation for the measurement gap; ora set of indications of the activation or deactivation for the at least one measurement gap.11.The terminal device of claim 10, wherein the first MAC CE is prioritized over a second MAC CE for requesting an activation or deactivation of a measurement gap for a positioning reference signal (PRS) measurement during a logical channel prioritization (LCP) procedure, orwherein the second MAC CE is prioritized over the first MAC CE during the LCP procedure.12.The terminal device of claim 10, wherein the terminal device is further caused to at least one of the following:receive, from the network device, a second configuration for a scheduling request (SR) for the first MAC CE;cancel a set of pending SRs based on at least one of the following: the SR is triggered by the first MAC CE, or the first MAC CE triggering the SR has been cancelled;in accordance with a determination that the first MAC CE triggering the SR has been cancelled, stop an ongoing random access procedure due to the SR for the first MAC CE; orin accordance with a determination that a reset of a MAC entity of the terminal device is requested by upper layers of the terminal device or the reset of the MAC entity is triggered due to secondary cell group (SCG) deactivation, cancel a transmission of the first MAC CE.13.A network device, comprising:a processor configured to cause the network device to:transmit, to a terminal device, a first configuration for a measurement of a sensing signal, the first configuration indicating at least one of the following:a set of measurement windows or gaps for the measurement of the sensing signal, orprioritization among the sensing signal and a set of downlink signals.14.The network device of claim 13, wherein the prioritization indicates one of the following:the sensing signal has a priority higher than a priority of a downlink signal in the set of downlink signals;the sensing signal has a priority lower than a priority of a physical downlink control channel and a physical downlink shared channel scheduled by downlink control information, and higher than a priority of a downlink signal in the set of downlink signals other than the physical downlink control channel and the physical downlink shared channel scheduled by the downlink control information;the sensing signal has a priority lower than a priority of a downlink signal in the set of downlink signals; orthe sensing signal has a priority lower than or equal to a priority of a positioning reference signal and higher than a priority of a downlink signal in the set of downlink signals other than the positioning reference signal.15.The network device of claim 13, wherein the network device is further caused to:transmit, to the terminal device, a medium access control (MAC) control element (CE) or downlink control information (DCI) indicating an activation or deactivation of the measurement of the sensing signal on at least one measurement window or gap in the set of measurement windows or gaps.16.The network device of claim 15, wherein the MAC CE comprises at least one of the following:an identity of a serving cell;an identity of an area for which the measurement applies;an identity of a measurement window or gap in the at least one measurement window or gap;an indication of the activation or deactivation for the measurement window or gap; ora set of indications of the activation or deactivation for the at least one measurement window or gap.17.The network device of claim 15, wherein the DCI comprises at least one of the following:an indication of whether the measurement of the sensing signal in a downlink bandwidth part (BWP) is enabled;an identity of a measurement window or gap in the at least one measurement window or gap;an indication of the activation or deactivation for the measurement window or gap; ora bitmap indicating the activation or deactivation for the at least one measurement window or gap.18.The network device of claim 13, wherein the network device is further caused to:receive, from the terminal device, assistance information for the measurement of the sensing signal comprising at least one of the following:information of a carrier for which the measurement is to be performed;a preferred periodicity of a measurement window or gap in the set of measurement windows or gaps;a preferred offset of the measurement window or gap; ora preferred duration of the measurement window or gap.19.The network device of claim 13, wherein the network device is further caused to:receive, from the terminal device, a first medium access control (MAC) control element (CE) for requesting an activation or deactivation of at least one measurement gap in the set of measurement gaps, the first MAC CE comprising at least one of the following:an identity of a measurement gap in the at least one measurement gap;an identity of an area for which the first MAC CE applies;an indication of the activation or deactivation for the measurement gap; ora set of indications of the activation or deactivation for the at least one measurement gap.20.The network device of claim 19, wherein the network device is further caused to:transmit, to the terminal device, a second configuration for a scheduling request (SR) for the first MAC CE.
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