Method, device and computer storage medium of communication
By coordinating measurement report configurations between terminal and network devices, the solution addresses CSI enhancement challenges in CJT, reducing calibration errors and overhead, thereby improving MIMO system performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2026-03-19
AI Technical Summary
Existing wireless communication systems face challenges in efficiently managing channel state information (CSI) enhancements for coherent joint transmission (CJT) calibration reports, particularly in non-ideal synchronization and backhaul scenarios, leading to increased overhead and reduced performance in MIMO systems.
A terminal device and network device exchange configurations for first and second measurement reports, where the payload size or range of the second information is based on the first information, facilitating reduced delay/frequency/phase offsets and overhead through coordinated reporting of reference signal resources.
This approach reduces calibration errors and overhead in CSI reporting, enhancing communication efficiency and performance in MIMO systems by aligning TRP offsets and optimizing resource utilization.
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Figure CN2024118933_19032026_PF_FP_ABST
Abstract
Description
METHOD, DEVICE AND COMPUTER STORAGE MEDIUM 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 for measurement report.BACKGROUND
[0002] Wireless communication networks are widely deployed and can support various types of service applications for terminal devices. Many communication schemes have been proposed to support the rapidly increasing data traffic. For example, in order to meet the increasing wireless data traffic demand, a plurality of schemes have been proposed and implemented, where a multiple input multiple output (MIMO) technology is considered as one powerful scheme to achieve high data throughputs in the communication system. MIMO refers to the type of wireless transmission and reception scheme where both a transmitter and a receiver employ more than one antenna. In particular, MIMO includes features that facilitate utilization of a large number of antenna elements at base station for both sub-6GHz and over-6GHz frequency bands. In release 19, channel state information (CSI) enhancements for coherent joint transmission (CJT) calibration report are specified.SUMMARY
[0003] In a first aspect, there is provided a terminal device. The terminal device comprises: a processor configured to cause the terminal device to: receive, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and transmit, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for a frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0004] In a second aspect, there is provided a network device. The network device comprises: a processor configured to cause the network device to: transmit, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and receive, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for a frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0005] In a third aspect, there is provided a communication method performed by a terminal device. The method comprises: receiving, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and transmitting, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for a frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0006] In a fourth aspect, there is provided a communication method performed by a network device. The method comprises: transmitting, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and receiving, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for a frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0007] In a fifth aspect, there is provided a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the third, or fourth aspect.
[0008] Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0009] 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:
[0010] FIG. 1A and FIG. 1B are block diagrams of an example communication environment in which embodiments of the present disclosure can be implemented;
[0011] FIG. 2 illustrates a signaling chart illustrating an example process for communication according to some embodiments of the present disclosure;
[0012] FIG. 3 illustrates a flowchart of a communication method implemented at a terminal device according to some example embodiments of the present disclosure;
[0013] FIG. 4 illustrates a flowchart of a communication method implemented at a network device according to some example embodiments of the present disclosure;
[0014] FIG. 5 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.
[0015] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0016] 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.
[0017] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same mean as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0018] 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) , 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 have ‘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.
[0019] 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) , and the like.
[0020] 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.
[0021] The terminal or the network device may work on several frequency ranges (FRs) , 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 connection with the network devices under Multi-Radio Dual Connectivity (MR-DC) application scenario. The terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
[0022] 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.
[0023] In some embodiments, 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 some embodiments, the first network device may be a first RAT device and the second network device may be a second RAT device. In some embodiments, 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 some embodiments, 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 some embodiments, 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.
[0024] 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.
[0025] 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.
[0026] As used herein, the terms “UE expects” , “UE does not expect, “terminal device expects” , “terminal device does not expect” may imply restrictions on a configuration of a network device (also referred to as NW configuration) . The terms “UE is not expected to” and “terminal device is not expected to” may imply a terminal implementation, also referred to as UE implementation. In some embodiments, the terms “UE does not expect” and “UE is not expected to” may be used equally.
[0027] As used herein, beam refers to at least one of: a reference signal (RS) (e.g., Channel state information reference signal, (CSI-RS) , CSI-RS for tracking, CSI-RS for beam management, synchronization signal physical broadcast channel (PBCH) Block, SS / PBCH block, SSB, sounding reference signal, SRS) , an RS resource (e.g., CSI-RS resource, CSI-RS resource for tracking, CSI-RS resource for beam management SS / PBCH block resource, SSB resource, SRS resource) , a transmission configuration indicator (TCI) state, or RS (or RS resource) configured with a quasi-co-location (QCL) type (e.g., typeA, typeB, typeC, typeD) , pathloss reference RS, uplink power control (parameter) ; Beam ID refers to CSI-RS resource indicator (CRI) or SRS resource indicator (SSBRI) , TCI state ID, pathloss reference RS ID, or uplink power control ID.
[0028] As used herein, the term “TRP” may refer to an antenna port or an antenna array (with one or more antenna elements) available to the network device located at a specific geographical location. For example, a network device may be coupled with multiple TRPs in different geographical locations to achieve better coverage. Alternatively, or in addition, multiple TRPs may be incorporated into a network device, or in other words, the network device may comprise the multiple TRPs. The term “TRP” may be also referred to as a cell, such as a macro-cell, a small cell, a pico-cell, a femto-cell, a remote radio head, a relay node, etc. It is to be understood that the term “TRP” may refer to a logical concept which may be physically implemented by various manner.
[0029] There may be no explicit TRP identification or identity (ID) . If multi-downlink control information (M-DCI) is assumed, the TRP ID may be implicitly identified via control resource set (CORESET) Pool Index (CORESETPoolIndex) . If single-DCI (S-DCI) is assumed, the TRP ID may implicitly identified via a first / second joint / UL TCI state or a sounding reference signal (SRS) resource set ID for uplink (UL) transmission at least. Therefore, the term “TRP” can be used interchangeably with the terms “TCI state” , “resource set” , “SRS resource set” , or other RS resource set.
[0030] As used herein, the terms “precoder” , “precoding” , “precoding matrix” , “beam” , “spatial relation information” , “spatial relation info” , “precoding information” , “precoding information and number of layers” , “precoding matrix indicator (PMI) ” , “precoding matrix indicator” , “transmission precoding matrix indication” , “precoding matrix indication” , “TCI state” , “UL TCI state” , “DL TCI state” , “joint TCI state” , “transmission configuration indicator” , “QCL” , “quasi-co-location” , “QCL parameter” , “QCL assumption” , “QCL relationship” and “spatial relation” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0031] As used herein, the terms “pre-compensation” , “compensation” , “compensate” , “measurement” and “measurement based on” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0032] In the context of the present application, the terms “uplink channel” , “uplink resource” , “physical uplink control channel (PUCCH) ” , “PUCCH” , “physical uplink shared channel (PUSCH) ” and “uplink control information (UCI) ” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “DCI” and “DCI format” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “format” and “PUCCH format” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0033] In the context of the present application, the terms “first uplink resource” and “first uplink channel” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “second uplink resource” and “second uplink channel” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0034] In the context of the present application, the terms “signaling” , “message” , “configuration” , “request” , “response” , “information” and “signal” , “packet” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0035] In the context of the present application, the terms “occasion” , “one occasion” , “one slot” , “one symbol” , “slot” , “symbol” , “subslot” and āat least one symbol” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0036] In the context of the present application, the terms “condition identity” , “condition ID”, “identity of at least one condition” , “event identity” , “event ID” and “identity of at least one event” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0037] In the context of the present application, the terms “index” , “indicator” , “indication” , “field” , “bit field” and “bitmap” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0038] In the context of the present application, the terms “uplink channel” and “uplink resource” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “element of indication field” , “parameter” and “indication” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “associated with” , “corresponding to” , “correspond to” , “indicate” and “comprise” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0039] In the context of the present application, the terms “reference signal received power” , “RSRP” , “layer-1 RSRP” , “L1-RSRP” , “filtered RSRP” , “layer-3 RSRP” , “measurement result” , “quality” and “L3-RSRP” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “signal to interference plus noise ratio” , “SINR” , “layer-1 SINR” , “L1-SINR” , “filtered SINR” , “layer-3 SINR” , “measurement result” , “quality” and “L3-SINR” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0040] In the context of the present application, the terms “physical cell identity” , “PCI” , “cell identity” , “cell ID” , “serving cell” , “cell” , “value of cell ID” , “component carrier” , “CC” , “bandwidth part” , “BWP” and “value of PCI” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0041] In the context of the present application, the terms “synchronization signal (SS) and physical broadcast channel (PBCH) block” , “PBCH block” , “SS / PBCH block” , “synchronization signal block” , “synchronization signal block resource” , “SSB resource” , “SS / PBCH block resource” , “reference signal” , “channel state information reference signal” , “RS” , “CSI-RS” and “SSB” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0042] In the context of the present application, the terms “identity” , “identification” , “indication” and “indicator” are optional examples and applicable in embodiments of the present disclosure.
[0043] In the context of the present application, the terms “condition” , “event” , “triggering condition” , “triggering event” , “initiated condition” and “initiated event” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0044] In the context of the present application, the terms “UE triggered” , “event driven” , “UE driven” , “UE initiated” , “event initiated” , “condition satisfied” , “condition triggered” , “event satisfied” , “event triggered” , “UE triggered report” , “event driven report” , “UE driven report” , “UE initiated report” , “event initiated report” , “condition satisfied report” , “condition triggered report” , “event satisfied report” , “event triggered report” , “UE triggered reporting” , “event driven reporting” , “UE driven reporting” , “UE initiated reporting” , “event initiated reporting” , “condition satisfied reporting” , “condition triggered reporting” , “event satisfied reporting” and “event triggered reporting” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “triggered” , “driven” , and “satisfied” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0045] In the context of the present application, the terms “physical uplink shared channel” , “PUSCH” , “uplink shared channel” , “ULSCH” and “UL-SCH” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0046] In the context of the present application, the terms “cyclic shift” , “cyclic shift offset” , “cyclic shift offset value” and “cyclic shift value” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0047] As discussed above, in release (Rel) -19, CSI enhancements for CJT calibration report are specified. Specify UE reporting enhancement for CJT deployments under non-ideal synchronization and backhaul, targeting frequency range 1 (FR1) , both frequency division duplex (FDD) and time division duplex (TDD) , such as, inter-TRP time misalignment and frequency / phase offset measurement and reporting, assuming legacy CSI-RS design, with stand-alone aperiodic reporting on PUSCH.
[0048] For the release 19 aperiodic standalone CJT calibration reporting of { (Dn, offset, dn) , n=0, 1, ..., NTRP -1, n≠nref} , regarding the interval as [δi,δi+1] or [δi,δi+1) which Dn, offset falls into, is uniformly spaced between 0 and AD, i.e., i=0, 1, ...MD-1 with MD= 2B and or represent 'out-of-range' .
[0049] For theRel-19 aperiodic standalone CJT calibration reporting, the dynamic range and resolution parameters for delay offset reporting Dn, offset, i.e., (AD, MD) , are NW-configured via higher-layer (RRC) signalling from the following candidate values:
[0050] - or AD= {0.5CP, CP} , where CP and Δf denote the length of the cyclic prefix according to the current specifications (for normal CP) within a slot and the SCS, respectively. Further down-selection of the above candidate values for AD, including the use of a same unit for all supported values, may be supported.
[0051] - MD= {32, 64} or MD= {32, 64, 128, 256} ; If TDD TX / RX timing misalignment report is supported, different set of candidate MD values may be needed.
[0052] In addition, the inside / outside range or the predefined range for the 1-bit indicator dn is equal to [0, CP] .
[0053] For the Rel-19 aperiodic standalone CJT calibration (CJTC) reporting, to facilitate UE-specific delay offset pre-compensation on physical downlink shared channel (PDSCH) by the NW, it would be decided, by RAN1, whether to support configuring a UE (via RRC signaling) to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported delay offset (when ReportQuantity is ‘cjtc-Dd’ ) . And if supported, whether any of the following is additionally supported or not:
[0054] - NW indicates the delay offset value to be compensated for the Rel-18 eType-II CJT CSI report, and / or
[0055] - The two separately configured reports (i.e., Rel-18 eType-II CJT CSI report and the CJTC delay offset report) are always jointly triggered and carried on a same PUSCH (hence on a same slot) ;
[0056] - The delay offset value to be compensated is the latest reported delay offset (DO) before the DCI triggering the CJT CSI reporting.
[0057] For the Rel-19 aperiodic standalone CJTC reporting, to facilitate UE-specific delay offset pre-compensation on PDSCH by the NW, it would be decided, by RAN1, whether to support configuring a UE (via RRC signaling) to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported delay offset (when ReportQuantity is ‘cjtc-Dd’ ) . And if supported, whether any of the following is additionally supported or not:
[0058] - NW indicates the delay offset value to be compensated for the Rel-18 eType-II CJT CSI report, and / or
[0059] - The two separately configured reports (i.e., Rel-18 eType-II CJT CSI report and the CJTC delay offset report) are always jointly triggered and carried on a same PUSCH (hence on a same slot) ;
[0060] - The delay offset value to be compensated is the latest reported DO before the DCI triggering the CJT CSI reporting.
[0061] The above only applies when the channel measurement resources (CMR) sor the reference signal resource (s) for channel measurement or the reference signal resource set (s) for channel measurement do not share common QCL source for average delay.
[0062] According to RAN1 agreements, for the Rel-19 aperiodic standalone CJTC reporting, to facilitate UE-specific delay offset pre-compensation on PDSCH by the NW, support configuring a UE (via RRC signaling) to perform PMI calculation for the Rel-18 eType-II CJT CSI report assuming pre-compensation using the UE-reported delay offset (when ReportQuantity is ‘cjtc-Dd’ ) .
[0063] The two separately configured reports (i.e., Rel-18 eType-II CJT CSI report and the CJTC delay offset report) can be separately or jointly triggered [and carried on a same PUSCH (hence on a same slot) ] following legacy joint triggering mechanism,
[0064] - When separately triggered, the delay offset value to be compensated is the latest reported delay offset (DO) whose reporting instance’s last symbol is before the first symbol of DCI triggering of the CJT CSI reporting;
[0065] - When jointly triggered, the delay offset value to be compensated is the reported delay offset (DO) in the same reporting instance.
[0066] The above only applies when the CMRs do not share common QCL source for average delay indication and is optional feature for UE.
[0067] So far, details on CSI report based on pre-compensation of CJT calibration report has not been discussed.
[0068] According to some embodiments of the present disclosure, it is provided a solution for measurement reporting. In this solution, a terminal device receives, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and transmits, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information. In this way, after calibration, at least delay / frequency / phase offset between TRPs will be reduced, and further the overhead for the CSI report would be reduced.
[0069] In the context of the present disclosure, some example embodiments are discussed by using delay offset. However, the solution discussed herein may be applied to scenarios related to frequency offset and phase offset. That is, all the embodiments discussed with regards to delay offset are applicable to the scenarios related to frequency offset and phase offset. Merely for brevity, the same or similar contents are omitted herein.
[0070] Principles and implementations of the present disclosure will be described in detail below with reference to the figures.
[0071] FIG. 1A and / or FIG. 1B show example communication environments 100 in which example embodiments of the present disclosure can be implemented. The communication environment 100 comprises a terminal device 110 and a network device 120.
[0072] In the environment 100, a link from the network device 120 to the terminal device 110 is referred to as a downlink, while a link from the terminal device 110 to the network device 120 is referred to as an uplink. In downlink, the network device is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver) . In uplink, the terminal device 110 is a transmitting TX device (or a transmitter) and the network device is a RX device (or a receiver) .
[0073] It is to be understood that the number of devices and their connections shown in FIG. 1A and / or FIG. 1B are only for the purpose of illustration without suggesting any limitation. The communication environment 100 may include any suitable number of devices configured to implementing example embodiments of the present disclosure.
[0074] In some embodiments, the terminal device 110 and the network device 120 may communicate with each other via a channel such as a wireless communication channel on an air interface (e.g., Uu interface) . The wireless communication channel may comprise a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , a physical random-access channel (PRACH) , a physical downlink control channel (PDCCH) , a PDSCH and a physical broadcast channel (PBCH) . Of course, any other suitable channels are also feasible.
[0075] The communications in the communication environment 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.
[0076] It should be understood that although feature (s) / operation (s) are discussed in specific example embodiments separately, unless clearly indicated to the contrary, these feature (s) / operation (s) described in different example embodiments may be used in any suitable combination.
[0077] To facilitate discussion, below example embodiments will be discussed with reference to FIG. 1A, for example, by using the terminal device 110 and the network device 120. Further, it is to be understood that the operations at the terminal device 110 and the network device 120 should be coordinated. In other words, the network device 120 and the terminal device 110 should have common understanding about configuration, parameters and so on. Such common understanding may be implemented by any suitable interactions between the network device 120 and the terminal device 110 or both the network device 120 and the terminal device 110 applying the same rule / policy. In the following, although some operations are described from a perspective of the terminal device 110, it is to be understood that the corresponding operations should be performed by the network device 120. Similarly, although some operations are described from a perspective of the network device 120, it is to be understood that the corresponding operations should be performed by the terminal device 110. Merely for brevity, some of the same or similar contents are omitted here.
[0078] In addition, in the following description, some interactions are performed among the terminal device 110 and the network device 120. It is to be understood that the interactions may be implemented either in one single signaling / message or multiple signaling / messages, including system information (SI) , RRC message, downlink control information (DCI) message, uplink control information (UCI) message, media access control (MAC) control element (CE) and so on. The present disclosure is not limited in this regard.
[0079] As shown in FIG. 1B, the network device 120 may communicate with the terminal device 110 via at least one of the TRPs / panels 130-1, 130-2, 130-3 and 130-4 (collectively referred to as TRPs 130 or individually referred to as TRP 130) . In the following text, the TRP / panel 130-1 may be also referred to as the first TRP / panel, the TRP / panel 130-2 may be also referred to as the second TRP / panel, the TRP / panel 130-3 may be also referred to as the third TRP / panel and the TRP / panel 130-4 may be also referred to as the fourth TRP / panel. Each of the TRPs / panels 130 may provide a plurality of beams for communication with the terminal device 110. It is noted that the number of TRPs / panels shown in FIG. 1B is only an example not limitation.
[0080] In some embodiments, the network device 120 may be configured with at least one of four TRPs / panels 130-1, 130-2, 130-3 and 130-4 (collectively referred to as TRPs 130 or individually referred to as TRP 130) . It is to be understood that the number of network devices, terminal devices and TRPs as shown in FIG. 1B is only for the purpose of illustration without suggesting any limitations to the present disclosure. The communication environment 100 may include any suitable number of devices adapted for implementing embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional devices may be located in the cell 101 and / or the cell 102, and one or more additional cells may be deployed in the communication environment 100. It is noted that although illustrated as a network device, the network device 120 may be another device than a network device. Although illustrated as a terminal device, the terminal device 110 may be other device than a terminal device. The term “TRP” refers to an antenna array (with one or more antenna elements) available to the network device located at a specific geographical location. For example, a network device may be coupled with multiple TRPs in different geographical locations to achieve better coverage. For another example, a network device may be implemented with multiple panels or multiple groups of antenna ports / elements in same geographical location. It is to be understood that the TRP can also be referred to as a “panel” , which also refers to an antenna array (with one or more antenna elements) or a group of antennas.
[0081] In some embodiments, each RS resource or each CSI-RS resource may correspond to one of the following: a TRP, a TRP group or a beam (e.g., an analog beam) . In some embodiments, each RS resource set or each set of RS resources or each CSI-RS resource set or each set of CSI-RS resources may correspond to one of the following: a TRP, a TRP group or a beam (e.g., an analog beam) .
[0082] In embodiments of this disclosure, the serving area of the network device 120 may be called a cell 101 and / or a cell 102.
[0083] In operation, as illustrated in FIG. 2, the network device 120 transmits (210-1) at least one configuration to the terminal device 110, where the at least one configuration comprises a first report configuration of a first measurement report and a second report configuration of a second measurement report, and further the first report configuration is associated with a group of RS resource sets and the second report configuration is associated with a set of RS resources. The terminal device 110 receives (210-2) the at least one configuration accordingly.
[0084] It is noted that that the first and second report configurations may be two separate report configuration or maybe two sub-reports belong to a same report configuration.
[0085] Then, the terminal device 110 transmits (220-1) the first measurement report comprising first information and the second measurement report comprising second information to the network device 120, and the network device 120 receives (220-2) the first and second measurement reports accordingly.
[0086] According to some example embodiments of the present disclosure, a payload size or a range of the second information may be based at least in part on the first information.
[0087] In some embodiments, the terminal device 110 may receive, from the network device, at least one configuration indicating at least one of: the number of physical resource blocks (PRBs) in a bandwidth part (BWP) , the number of a plurality of subbands, a size of one subband and the number of PRBs of one subband. For example, through RRC signalling. In some embodiments, subband may correspond to a subband for CQI or a subband for precoding matrix indicator (PMI) or CQI subband or PMI subband or CSI subband.
[0088] As used herein, the terms “subband” and “frequency unit” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0089] As used herein, the terms “number of subbands” , “number of precoding matrices” , “seventh parameter for codebook” , “seventh parameter for the second measurement report” and “N3” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0090] In some embodiments, one value in one second vector may be represented as In some embodiments, n3 may be non-negative integer. In some embodiments, 0≤n3≤N3-1. In some embodiments, one second vector may be represented as In some embodiments, f may be index or indicator for one second vector. In some embodiments, f may be non-negative integer. In some embodiments, 0≤f≤N3-1.
[0091] In some embodiments, the number of subbands (e.g., for PMI or for the second measurement report) or the number of precoding matrices in the second measurement report may be represented as N3. In some embodiments, N3 may be positive integer. In some embodiments, 1≤N3≤19. In some embodiments, 1≤N3≤18. In some embodiments, 1≤N3≤36.In some embodiments, 1≤N3≤38.
[0092] In some embodiments, the at least one measurement report may comprise: a first measurement report (e.g., for CJT calibration) and a second measurement report (e.g., for CSI report) . In some embodiments, the at least one measurement report may be one measurement report, and the one measurement report may comprise: a first subset of the measurement report (e.g., for CJT calibration, e.g., delay offset reporting and / or frequency offset reporting and / or phase offset reporting) and a second subset of the measurement report (e.g., for CSI report) .
[0093] In the context of the present application, the terms “a first measurement report” , “CJT calibration” , “a first subset of the measurement report” , “delay offset reporting” , “delay offset” , “frequency offset” , “phase offset” , “delay offset and frequency offset” , “frequency offset reporting” , “phase offset reporting” and “pre-compensation reporting” are optional examples and applicable in embodiments of the present disclosure the present disclosure. In the context of the present application, the terms “a second measurement report” , “CSI report” , “a second subset of the measurement report” , “precoding matrix indicator (PMI) report” , “channel quality indicator (CQI) report” , “codebook indicator report” , “report based on compensation” and “report after compensation” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0094] In the context of the present application, the terms “delay offset report” , “reported delay offset” , “delay offset reporting” , “measured delay offset” , “measured value of delay offset” , “reported value of delay offset” , “delay offset” , “reported interval of delay offset” , “reported interval” , “reported offset” , “measured offset” , “reported value” , “measured value” , “measured value before quantization” , “measured value without quantization” , “real measured value” , “frequency offset report” , “reported frequency offset” , “frequency offset reporting” , “measured frequency offset” , “measured value of frequency offset” , “reported value of frequency offset” , “frequency offset” , “reported interval of frequency offset” , “phase offset report” , “reported phase offset” , “phase offset reporting” , “measured phase offset” , “measured value of phase offset” , “reported value of phase offset” , “phase offset” and “reported interval of phase offset” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0095] In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise or may be associated with one or more of: delay offset report, report quantity configured as “cjtc-Dd” , frequency offset report, report quantity configured as “cjtc-F” , phase offset report, report quantity configured as “cjtc-P” , delay offset report + frequency offset report, report quantity configured as “cjtc-Dd-F” , CSI-RS resource indicator (CRI) report, SSB resource indicator (SSBRI) report, layer indicator (LI) report, channel measurement report, measurement report for sensing, report quantity configured as one or more of: “cri-RSRP” , “ssb-Index-RSRP” , “cri-SINR” , “ssb-Index-SINR” , “cri-RSRP-Index” , “ssb-Index-RSRP-Index” , “cri-SINR-Index” , “ssb-Index-SINR-Index” or “tdcp” .
[0096] In some embodiments, the second measurement report and / or the second subset of the measurement report may comprise or may be associated with one or more of: CSI report, PMI report, rank indicator (RI) report, CQI report, CSI-RS resource indicator (CRI) report, SSB resource indicator (SSBRI) report, layer indicator (LI) report, codebook indicator (s) report, precoder report, channel measurement report, report quantity configured as one or more of: “cri-RI-PMI-CQI” , “cri-RI-LI-PMI-CQI” , “cri-RI-i1” , “cri-RI-CQI” , “cri-RI-i1-CQI” , “cri-RSRP” , “ssb-Index-RSRP” , “cri-SINR” , “ssb-Index-SINR” , “cri-RSRP-Index” , “ssb-Index-RSRP-Index” , “cri-SINR-Index” , “ssb-Index-SINR-Index” or “tdcp” .
[0097] In some embodiments, the at least one configuration may comprise at least one configuration for a group of CSI-RS resource set (s) and at least one configuration for a fifth set of CSI-RS resource (s) and one or more of: at least one configuration for a second group of CSI-RS resource set (s) , a first parameter (e.g., the first parameter may be represented as AD, e.g., the first parameter may indicate the first range or a first maximum value of delay offset report) , a second parameter (e.g., the second parameter may be represented as MD, e.g., the second parameter may indicate resolution or unit for delay offset report) , value of a third parameter (e.g., the third parameter may be represented as AFO, e.g., the third parameter may indicate a second range or a second maximum value of frequency offset report) , value of a fourth parameter (e.g., the fourth parameter may be represented as MFO, e.g., the fourth parameter may indicate resolution or unit for frequency offset report) , a fifth parameter (e.g., numberOfO3, represented as O3) , a plurality of subbands (e.g., for PMI or for at least one codebook indicator or for the second measurement report) or the first range for delay offset report (e.g., represented as [0, As] ) . In some embodiments, the group of CSI-RS resource set (s) may comprise NTRP CSI-RS resource set (s) . In some embodiments, the second group of CSI-RS resource set (s) may comprise NTRP CSI-RS resource set (s) .
[0098] In some embodiments, NTRP may be a positive integer. In some embodiments, 1≤NTRP≤64 or 1≤NTRP≤16. In some embodiments, NTRP may be one or more of {1, 2, 3, 4} or one or more of {2, 3, 4} .
[0099] As used herein, the terms “first group of CSI-RS resource (s) ” , “second group of CSI-RS resource (s) ” , “group of CSI-RS resource (s) ” , “first group of RS resources” , “group of RS resources” and “second group of RS resources” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0100] In some embodiments, the group of CSI-RS resource set (s) or the second group of CSI-RS resource set (s) or the NTRP CSI-RS resource set (s) may comprise one or more of: a first CSI-RS resource set, a second CSI-RS resource set, a third CSI-RS resource set, or a fourth CSI-RS resource set. In some embodiments, the group of CSI-RS resource set (s) or the NTRP CSI-RS resource set (s) may comprise one or more of: one CSI-RS resource set with index 1, one CSI-RS resource set with index 2, one CSI-RS resource set with index 3, or one CSI-RS resource set with index 4. In some embodiments, the group of CSI-RS resource set (s) or the NTRP CSI-RS resource set (s) may comprise two or more of: a first CSI-RS resource set (or represented as or interchangeable with a CSI-RS resource set with index 0) , a second CSI-RS resource set (or represented as or interchangeable with a CSI-RS resource set with index 1) , a third CSI-RS resource set (or represented as or interchangeable with a CSI-RS resource set with index 2) , or a fourth CSI-RS resource set (or represented as or interchangeable with a CSI-RS resource set with index 3) .
[0101] In some embodiments, one CSI-RS resource set comprised in the group of CSI-RS resource set (s) or the second group of CSI-RS resource set (s) may be represented as or interchangeable with CSI-RS resource set with index n1 (or CSI-RS resource set n1) .
[0102] In some embodiments, the value of n1 may be non-negative integer or positive integer. In some embodiments, 0≤ n1≤NTRP-1. In some embodiments, 0≤ n1≤Ns-1. In some embodiments, 1≤ n1≤NTRP. In some embodiments, 1≤ n1≤Ns. In some embodiments, n1=0, 1, ..., NTRP-1. In some embodiments, n1=0, 1, ..., Ns-1. In some embodiments, n1=1, 2, ..., NTRP . In some embodiments, n1=1, 2, ..., Ns.
[0103] In some embodiments, each one CSI-RS resource set in the group of CSI-RS resource set (s) or in the second group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) (e.g., CSI-RS resource set with index n1) may comprise one or two or four CSI-RS resource (s) . In some embodiments, each one CSI-RS resource set in the group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) (e.g., CSI-RS resource set with index n1) may comprise two CSI-RS resources in one slot. In some embodiments, each one CSI-RS resource set in the group of CSI-RS resource set (s) or in the second group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) (e.g., CSI-RS resource set with index n1) may comprise four CSI-RS resources in two consecutive slots, wherein two CSI-RS resources may be in a first one of the two consecutive slots, and the other two CSI-RS resources may be in the other (or the second) one of the two consecutive slots. In some embodiments, each one CSI-RS resource set in the group of CSI-RS resource set (s) or in the second group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) (e.g., CSI-RS resource set with index n1) may comprise four CSI-RS resources in two consecutive slots, wherein two CSI-RS resources may be in each one of the two consecutive slots.
[0104] In some embodiments, each one CSI-RS resource set in the group of CSI-RS resource set (s) or in the second group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) (e.g., CSI-RS resource set with index n1) may be periodic and / or aperiodic and / or semi-persistent.
[0105] In some embodiments, each one CSI-RS resource set or each one CSI-RS resource in the group of CSI-RS resource set (s) or in the second group of CSI-RS resource set (s) or in the NTRP CSI-RS resource set (s) or in the group of CSI-RS resource set (s) may be CSI-RS for tracking or may be configured with parameter trs-info.
[0106] In some embodiments, the fifth set of CSI-RS resource (s) may comprise MTRP CSI-RS resource (s) . In some embodiments, the fifth set of CSI-RS resource (s) may comprise one or more of: a first CSI-RS resource (or represented as or interchangeable with a CSI-RS resource index 0) , a second CSI-RS resource (or represented as or interchangeable with a CSI-RS resource index 1) , a third CSI-RS resource (or represented as or interchangeable with a CSI-RS resource index 2) , or a fourth CSI-RS resource (or represented as or interchangeable with a CSI-RS resource index 3) .
[0107] In some embodiments, one CSI-RS resource comprised in the fifth set of CSI-RS resource (s) may be represented as or interchangeable with CSI-RS resource with index m1(or CSI-RS resource m1) .
[0108] In some embodiments, 0≤m1≤MTRP-1. In some embodiments, 0≤m1≤NTRP-1. In some embodiments, 0≤m1≤N0-1. In some embodiments, 1≤m1≤MTRP. In some embodiments, 1≤m1≤NTRP. In some embodiments, 1≤m1≤N0.
[0109] In some embodiments, each one CSI-RS resource in the fifth set of CSI-RS resource (s) (e.g., CSI-RS resource with index m1) may be configured with a number of ports (e.g., represented as PCSI-RS) . In some embodiments, PCSI-RS maybe one or more of: {4, 8, 12, 16, 24, 32} or one or more of: {16, 24, 32} . In some embodiments, the number of ports corresponding to each one CSI-RS resource in the fifth set of CSI-RS resource (s) may be same.
[0110] In some embodiments, MTRP may be a positive integer. In some embodiments, 1≤MTRP≤64 or 1≤MTRP≤16. In some embodiments, MTRP may be one or more of {1, 2, 3, 4} or one or more of {2, 3, 4} . In some embodiments, MTRP may be same as NTRP. In some embodiments, MTRP may be no larger than NTRP. In some embodiments, 1≤MTRP≤NTRP. In some embodiments, MTRP may be larger than or equal to NTRP.
[0111] In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise: an indicator for a first reference RS resource set (e.g., corresponding to delay offset reporting, e.g., the indicator may be represented as nref1) , Nvalues of delay offset, N indicators of inside or outside (e.g., each of N indicators may indicate whether one of the N values of delay offset is inside or outside of a first range or may indicate whether a summation of one of the N values of delay offset and a corresponding delay spread is inside or outside of the first range) and / or at least one indicator indicating a number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) (e.g., corresponding to delay offset reporting) and / or at least one indicator indicating index (es) of the number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) or from the second group of CSI-RS resource set (s) (e.g., corresponding to delay offset reporting) . In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise or may be associated with delay offset report. In some embodiments, report quantity may be configured as “cjtc-Dd” .
[0112] In some embodiments, the number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) may be represented as Ns. In some embodiments, Ns may be positive integer. In some embodiments, 1≤Ns≤NTRP or 2≤Ns≤NTRP. In some embodiments, N may be positive integer or non-negative integer. In some embodiments, N=NTRP-1 or N=NTRP or N=NS or N=NS-1.
[0113] In some embodiments, one CSI-RS resource set comprised in the group of CSI-RS resource set (s) or the CSI-RS resource set with corresponding report in the first measurement report may be represented as or interchangeable with CSI-RS resource set with index n (or CSI-RS resource set n) .
[0114] In some embodiments, values of n1 may comprise or may be a union set of values of n and value of nref1. In some embodiments, values of n1 may comprise or may be a union set of values of n and value of nref.
[0115] In some embodiments, the first reference RS resource set index nref1 may be based on the ordering in the at least one configuration for the group of CSI-RS resource set (s) , In some embodiments, the field size for the indicator for the first reference RS resource set or the field size for the indicator of nref may be or ) . In some embodiments, nref1 may be positive integer or non-negative integer. In some embodiments, 0≤nref1≤NTRP-1 or 0≤nref1≤Ns-1. In some embodiments, 1≤nref1≤NTRPor 1≤nref1≤Ns.
[0116] In some embodiments, one of the N values of delay offset may correspond to the (n+1) -th CSI-RS resource set or may correspond to the CSI-RS resource set with index nin the first measurement report or the first subset of the measurement report.
[0117] In some embodiments, one of the N values of delay offset corresponding to the (n+1) -th CSI-RS resource set or corresponding to the CSI-RS resource set with index n in the first measurement report or the first subset of the measurement report may be represented as dn, offset. In some embodiments, dn, offset may be non-negative integer. In some embodiments, 0≤dn, offset≤MD-1. In some embodiments, the field size or bit size for indicating one of the N values of delay offset may be
[0118] In some embodiments, one of the N indicators of inside or outside may correspond to the (n+1) -th CSI-RS resource set or may correspond to the CSI-RS resource set with index n in the first measurement report or the first subset of the measurement report.
[0119] In some embodiments, one of the N indicators of inside or outside corresponding to the (n+1) -th CSI-RS resource set or corresponding to the CSI-RS resource set with index n in the first measurement report or the first subset of the measurement report may be represented as gn. In some embodiments, the field size or bit size for indicating one of the N indicators of inside or outside may be 1.
[0120] In some embodiments, the value of n may be non-negative integer or positive integer. In some embodiments, 0≤n≤NTRP-1 and n≠nref1. In some embodiments, 0≤n≤Ns-1 and n≠nref. In some embodiments, 1≤n≤NTRP and n≠nref1. In some embodiments, 1≤n≤Ns and n≠nref1. In some embodiments, n=0, 1, ..., NTRP-1 and n≠nref1. In some embodiments, n=0, 1, ..., Ns-1 and n≠nref1. In some embodiments, n=1, 2, …, NTRP and n≠nref1. In some embodiments, n=1, 2, ..., Ns and n≠nref1.
[0121] In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise: an indicator for a reference RS resource set corresponding to frequency offset reporting (e.g., the indicator may be represented as nref2) , N values of frequency offset and / or at least one indicator indicating a number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) (e.g., corresponding to frequency offset reporting) and / or at least one indicator indicating index (es) of the number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) (e.g., corresponding to frequency offset reporting) . In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise or may be associated with frequency offset report. In some embodiments, report quantity may be configured as “cjtc-F” .
[0122] In some embodiments, the number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) may be represented as Ns. In some embodiments, Ns may be positive integer. In some embodiments, 1≤Ns≤NTRP or 2≤Ns≤NTRP. In some embodiments, N may be positive integer or non-negative integer. In some embodiments, N=NTRP-1 or N=NTRP or N=Ns or N=Ns-1.
[0123] In some embodiments, the reference RS resource set index corresponding to frequency offset reporting nref2 may be based on the ordering in the at least one configuration for the group of CSI-RS resource set (s) , In some embodiments, the field size for the indicator for the reference RS resource set corresponding to frequency offset reporting or the field size for the indicator of nref2 may be or ) . In some embodiments, nref2 may be positive integer or non-negative integer. In some embodiments, 0≤nref2≤NTRP-1 or 0≤nref≤Ns-1. In some embodiments, 1≤nref2≤NTRPor 1≤nref≤Ns.
[0124] In some embodiments, one of the N values of frequency offset may correspond to the (n+1) -th CSI-RS resource set or may correspond to the CSI-RS resource set with index n in the first measurement report or the first subset of the measurement report.
[0125] In some embodiments, one of the N values of frequency offset corresponding to the (n+1)-th CSI-RS resource set or corresponding to the CSI-RS resource set with index n in the first measurement report or the first subset of the measurement report may be represented as FOn. In some embodiments, FOn may be non-negative integer. In some embodiments, 0≤FOn≤MFO-1.In some embodiments, the field size or bit size for indicating one of the N values of frequency offset may be
[0126] In some embodiments, the value of n may be non-negative integer or positive integer. In some embodiments, 0≤n≤NTRP-1 and n≠nref1. In some embodiments, 0≤n≤Ns-1 and n≠nref1. In some embodiments, 1≤n≤NTRP and n≠nref1. In some embodiments, 1≤n≤Ns and n≠nref1. In some embodiments, n=0, 1, ..., NTRP-1 and n≠nref1. In some embodiments, n=0, 1, ...,N s-1 and n≠nref1. In some embodiments, n=1, 2, ..., NTRP and n≠nref1. In some embodiments, n=1, 2, ..., Ns and n≠nref1.
[0127] In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise: an indicator for a first reference RS resource set (e.g., corresponding to delay offset reporting, e.g., the indicator may be represented as nref1) , N values of delay offset, N indicators of inside or outside (e.g., each of N indicators may indicate whether one of the N values of delay offset is inside or outside of a first range or may indicate whether a summation of one of the N values of delay offset and a corresponding delay spread is inside or outside of the first range) , an indicator for a reference RS resource set corresponding to frequency offset reporting (e.g., the indicator may be represented as nref2) , N values of frequency offset and / or at least one indicator indicating a number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) (e.g., corresponding to delay offset reporting and / or frequency offset reporting) and / or at least one indicator indicating index (es) of the number of CSI-RS resource set (s) selected from the group of CSI-RS resource set (s) (e.g., corresponding to delay offset reporting and / or frequency offset reporting) . In some embodiments, the first measurement report and / or the first subset of the measurement report may comprise or may be associated with delay offset report and frequency offset report. In some embodiments, report quantity may be as “cjtc-Dd-F” .
[0128] In some embodiments, the second measurement report or the second subset of the measurement report may comprise at least one first offset (or N0-1 first offset (s) ) and / or one or more of: at least one first vector (e.g., spatial domain vector) , a first bitmap indicating N0 selected CSI-RS resource (s) from the fifth set of CSI-RS resources (e.g., the first bitmap may comprise NTRP or MTRP bits) , one set of second vectors (e.g., frequency domain vectors) or N0 set (s) of second vectors (e.g., frequency domain vectors) , at least one amplitude coefficient, at least one phase coefficient, a second bitmap whose nonzero bits identify which amplitude coefficient (s) and / or phase coefficient (s) are reported or comprised in the second measurement report.
[0129] In some embodiments, N0 may be positive integer. In some embodiments, 1≤N0≤MTRP or 1≤N0≤MTRP.
[0130] In some embodiments, one CSI-RS resource comprised in the fifth set of CSI-RS resource (s) or one CSI-RS resource related to report in the second measurement report may be represented as or interchangeable with CSI-RS resource with index m (or CSI-RS resource m) .
[0131] In some embodiments, values of m1 may comprise or may be a union set of values of m and value of mref.
[0132] In some embodiments, one of the at least one first offset or one of the N0-1 first offset (s) or one first offset in the second measurement report may correspond to one CSI-RS resource with index m in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) . In some embodiments, m may be positive integer or non-negative integer. In some embodiments, one CSI-RS resource with index mref may be the second reference CSI-RS resource in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) . In some embodiments, mref may be non-negative integer or positive integer. In some embodiments, 0≤mref≤MTRP-1 or 1≤mref≤MTRP or 0≤mref≤NTRP-1 or 1≤mref≤NTRP or 0≤mref≤N0-1 or 1≤mref≤N0.
[0133] In some embodiments, 0≤m≤MTRP and m≠mref. In some embodiments, 0≤m≤NTRP-1 and m≠mref. In some embodiments, 0≤m≤N0-1 and m≠mref. In some embodiments, mref may be fixed as 0. In some embodiments, 1≤m≤MTRP and m≠mref. In some embodiments, 1≤m≤MTRP and m≠mref. In some embodiments, 1≤m≤N0 and m≠mref. In some embodiments, mref may be fixed as 1.
[0134] In some embodiments, the second reference CSI-RS resource may be the first configured one (e.g., in configuration order) or the one with lowest resource index or the one lowest resource identity or the first one in the fifth set of CSI-RS resource (s) . In some embodiments, the second reference CSI-RS resource may be the first configured one (e.g., in configuration order) or the one with lowest resource index or the one lowest resource identity or the first one in the N0 selected CSI-RS resource (s) . For example, mref may be fixed as 0. For another example, mref may be fixed as 1.
[0135] In some embodiments, the second reference CSI-RS resource may be the one CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) ) determined or configured to be corresponding to or to be associated with the first CSI-RS resource set.
[0136] In some embodiments, mref=nref1 or mref maybe same as nref1 or mref may be based on nref1 or mref=nref1+1.
[0137] In some embodiments, one of the at least one first offset or one of the N0-1 first offset (s) or one first offset in the second measurement report corresponding to one CSI-RS resource with index m in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) may be indicated by hm. In some embodiments, one of the at least one first offset or one of the N0-1 first offset (s) or one first offset in the second measurement report corresponding to one CSI-RS resource with index m in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) may be represented as or represented as In some embodiments, hm may be non-negative integer. In some embodiments, 0≤hm≤N3*O3-1 or hm∈ {0, 1, ..., N3O3-1}. In some embodiments, t may be the index associated with the precoding matrix or associated with the second measurement report. In some embodiments, t may be non-negative integer. In some embodiments, t=0, 1, ..., N3-1 or 0≤t≤N3-1 In some embodiments, one of the at least one first offset or one of the N0-1 first offset (s) or one first offset in the second measurement report corresponding to one CSI-RS resource with index m in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) (e.g., or ) or the indication of the one first offset (e.g., hm) may be for the m-th selected CSI-RS resource in the N0 selected CSI-RS resource (s) relative to the second reference CSI-RS resource in the N0 selected CSI-RS resource (s) . In some embodiments, one of the at least one first offset or one of the N0-1 first offset (s) or one first offset in the second measurement report corresponding to one CSI-RS resource with index m in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) (e.g., or ) or the indication of the one first offset (e.g., hm) may be for the m-th selected CSI-RS resource (or the CSI-RS resource with index m in the N0 selected CSI-RS resource (s) ) in the fifth set of CSI-RS resource (s) relative to the second reference CSI-RS resource in the fifth set of CSI-RS resource (s) .
[0138] In some embodiments, the first information may comprise one or more of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a first range, an indication of whether the value of frequency offset is inside or outside of a second range, an indication of whether the value of phase offset is inside or outside of a third range, an indication of whether a summation of the delay offset value and a corresponding delay spread is inside or outside of the first range, an indication of whether a summation of the frequency offset value and a corresponding spread is inside or outside of the second range, an indication of whether a summation of the phase offset value and a corresponding spread is inside or outside of the third range, a range or maximum value for a delay offset report, a range or maximum value for a frequency offset report, a range or maximum value for a phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, or a value of the fifth parameter (e.g., numberOfO3, e.g., represented as O3) .
[0139] In some embodiments, O3 may be positive integer. In some embodiments, O3 may be 1 or 4. In some embodiments, O3 may be 1 or 2 or 4. In some embodiments, the fifth parameter may be configured to be 1 or 4.
[0140] In some embodiments, the second information may comprise one or more of the following: an indication of a first offset (e.g., the indication of the first offset may be represented by hm. For example, the first offset may be associated with or may be comprised in at least one codebook indicator in the second measurement report) between a RS resource and a reference RS resource, wherein the RS resource and the reference RS resource may be comprised in the set of RS resources (e.g., represented as the fifth set of RS resource (s) ) , an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources (or the fifth set of RS resource (s) ) , a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources selected from the set of RS resources (or from the fifth set of RS resource (s) ) reported in the second measurement report, or a value of the sixth parameter related to the first offset (e.g., represented as T*O3 or O4) .
[0141] In some embodiments, T may be positive integer. In some embodiments, T may be 1 or 2 or 3 or 4.
[0142] In some embodiments, the sixth parameter be positive integer. In some embodiments, O4 may be positive integer. In some embodiments, O4 may be 2 or 8. In some embodiments, O4 may be 1 or 2 or 4 or 8. In some embodiments, in case of O3 is configured with 1, O4 may be 1 or 2, and / or T may be 1 or 2 based on the first information in the first measurement report. In some embodiments, in case of O3 is configured with 4, O4 may be 4 or 8 (or 6) , and / or T may be 1 or 2 based on the first information in the first measurement report.
[0143] In some embodiments, the reference RS resource set may be the first reference CSI-RS resource set. In some embodiments, the group of RS resource set (s) may be the groups of CSI-RS resource set (s) .
[0144] In some embodiments, the reference RS resource set may be comprised in the groups of RS resource set (s) . In some embodiments, the first reference CSI-RS resource set may be comprised in the group of CSI-RS resource set (s) .
[0145] As used herein, the terms “reference RS resource set” and “first reference CSI-RS resource set” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0146] As used herein, the terms “group of RS resource sets” , “NTRP CSI-RS resource set (s) ” and “group of CSI-RS resource set (s) ” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0147] In some embodiments, the reference RS resource may be the second reference CSI-RS resource. In some embodiments, the set of RS resources may be the fifth set of RS resource (s) .
[0148] In some embodiments, the reference RS resource may be comprised in the fifth set of RS resource (s) or in the number of RS resources selected from the set of RS resources. In some embodiments, the second reference CSI-RS resource may be comprised in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) (e.g., selected from the fifth set of CSI-RS resource (s) ) .
[0149] As used herein, the terms “reference RS resource” and “second reference CSI-RS resource” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0150] As used herein, the terms “set of RS resources” , “fifth set of RS resource (s) ” and “fifth set of CSI-RS resource (s) ” are optional examples and applicable in embodiments of the present disclosure the present disclosure.
[0151] In some embodiments, the terminal device 110 may receive at least one configuration for at least one measurement report (e.g., a first measurement report or a first subset of a measurement report (e.g., for CJT calibration, e.g., delay offset reporting and / or frequency offset reporting and / or phase offset reporting) and a second measurement report or a second subset of the measurement report (e.g., for CSI report) ) from the network device, the terminal device may transmit the at least one measurement report based on the at least one configuration, wherein at least one second information in the second measurement report (or in the second subset of the measurement report) may be based on at least one first information in the first measurement report (or in the first subset of the measurement report) and / or based on at least one configuration for the first measurement report (or for the first subset of the measurement report) .
[0152] In some embodiments, the first information in the first measurement report (or the first subset of the measurement report) may comprise one or more of: value of a delay offset (or the range of the value of a delay offset, e.g., corresponding to one CSI-RS resource set in the group of CSI-RS resource set (s) (e.g., CSI-RS resource set with index n) , (For example, wherein the CSI-RS resource set with index n may be associated with one CSI-RS resource in the fifth set of CSI-RS resource (s) (e.g., the CSI-RS resource with index m in the fifth set of CSI-RS resource (s) ) , value of indication of whether report corresponding to the one CSI-RS resource set (e.g., CSI-RS resource set with index n) in the group of CSI-RS resource set (s) is inside or outside of a first range (or whether measured or the reported delay offset plus delay spread is inside or outside of the first range or whether exceed or not of a predefined (or a maximum) value) (for example, the indication (e.g., corresponding to the CSI-RS resource set with index n) may be represented as gn) , value of a first parameter (e.g., the first parameter may be represented as AD, e.g., the first parameter may indicate the first range or a first maximum value of delay offset report) , value of a second parameter (e.g., the second parameter may be represented as MD, e.g., the second parameter may indicate resolution or unit for delay offset report) , value of a third parameter (e.g., the third parameter may be represented as AFO, e.g., the third parameter may indicate a second range or a second maximum value of frequency offset report) , value of a fourth parameter (e.g., the fourth parameter may be represented as MFO, e.g., the fourth parameter may indicate resolution or unit for frequency offset report) , value of the fifth parameter (e.g., numberOfO3, represented as O3) . Further, in some embodiments, the predefined value or the maximum value may be represented as As. In some embodiments, the first range may be represented as [0, As] .
[0153] In some embodiments, gn may be non-negative integer. In some embodiments, gn may be 0 or 1. In some embodiments, gn=0 may indicate inside (e.g., of the first range) and gn=1 may indicate outside (e.g., of the first range) . In some embodiments, gn=1 may indicate inside (e.g., of the first range) and gn=0 may indicate outside (e.g., of the first range) .
[0154] In some embodiments, the first parameter AD may be or AD= {0.5CP, CP} or AD= {0.5*As, As} . In some embodiments, the first parameter AD maybe one or more of: or one or more of: {0.5CP, CP} or one or more of: {0.5*As, As} . In some embodiments, the second parameter MD may be an integer, for example, 1≤MD≤512. In some embodiments, MD may be one or more of {32, 64, 128, 256} . In some embodiments, MD may be one or more of {32, 64} .
[0155] In some embodiments, the third parameter AFO may be one or more of: {0.01ppm, 0.1ppm, 0.2ppm, Δf, Δf / 2, Δf / 4, Δf / 8, 1 / (4*Δt) , 1 / (8*Δt) , 1 / (16*Δt) , 1 / (32*Δt) , 1 / (512*Δt) } or one or more of: {0.1ppm, 0.2ppm} . In some embodiments, “ppm” may be or may represent parts per million. In some embodiments, AFO may be or or a*10-6 or a*10-6*b. In some embodiments, AFO maybe one or more of {10-7, 2*10-7} or one or more of: {b*10-7, 2*b*10-7} . In some embodiments, a may be one or more of {0.1, 0.2, 0.01} . In some embodiments, b may be the carrier frequency for communication between the network device and the terminal device. In some embodiments, b may be configured by the network device (e.g., configured by carrierFreq or absoluteFrequencyPointA or absoluteFrequencySSB) and / or determined by the terminal device.
[0156] In some embodiments, the fourth parameter MFO may be one or more of: {16, 32, 256} or one or more of {16, 32, 64, 128, 256} .
[0157] In some embodiments, one of the N values of delay offset corresponding to the (n+1) -th CSI-RS resource set or corresponding to the CSI-RS resource set with index n (e.g., Dn, offset) in the first measurement report or the first subset of the measurement report may indicate an interval where the delay offset falls into. In some embodiments, an interval may be represented as [δi, δi+1) or (δi, δi+1] or [δi, δi+1] or (δi, δi+1) or (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) . In some embodiments, In some embodiments, i may be non-negative integer. For example, i=0, 1, ...MD-1. In some embodiments, i may be Dn, offset or i may be indicated by Dn, offset. In some embodiments, δi may be the lower bound of the (i+1) -th interval, δi+1 may be the upper bound of the (i+1) -th interval. In some embodiments, [A, B) may represent the range of interval from A to B, and the interval comprises the value of A and the interval does not comprise the value of B. In some embodiments, (A, B] may represent the range of interval from A to B, and the interval does not comprise the value of A and the interval comprises the value of B. In some embodiments, [A, B] may represent the range of interval from A to B, and the interval comprises the value of A and the interval comprises the value of B. In some embodiments, (A, B) may represent the range of interval from A to B, and the interval does not comprise the value of A and the interval does not comprise the value of B. In some embodiments, A may be one or more of: 0, δi, AD or δ0. In some embodiments, B may be one or more of: δi+1, ∞, AS or δ1.
[0158] In some embodiments, one of the N values of frequency offset corresponding to the (n+1) -th CSI-RS resource set or corresponding to the CSI-RS resource set with index n (e.g., Fn, offset) in the first measurement report or the first subset of the measurement report may indicate a frequency offset value. In some embodiments, a frequency offset value may be represented as or In some embodiments, i may be non-negative integer. For example, i=0, 1, ...MFO-2. For example, i=0, 1, ...MFO-1. In some embodiments, Fn, offset may be non-negative integer. For example, Fn, offset=0, 1, ...MFO-2. For example, Fn, offset=0, 1, ...MFO-1. In some embodiments, i may be Fn, offset or i may be indicated by Fn, off . In some embodiments, Fn, offset may be i. In some embodiments, Fn, offset=i. In some embodiments, and / or i=MFO-1 and / or Fn, offset=MFO-1 may indicate an invalid state or may indicate invalid value or may indicate “invalid” .
[0159] In some embodiments, the first range may be represented as [0, AS] or [0, AS) . In some embodiments, AS may be length of cyclic prefix (CP) . In some embodiments, AS may be one or more of: CP, 144*κ*2-μ*Tc, (144*κ*2-μ+16*κ)*Tc, 512*κ*2-μ*Tc, 144*κ*Tc, 512*κ*Tc, 144*κ*2-μ, (144*κ*2-μ+16*κ) , 512*κ*2-μ, 144*κ or 512*κ.
[0160] In some embodiments, μ may represent or refer to subcarrier spacing configuration; For example, the value of μ may be at least one of {0, 1, 2, 3, 4, 5, 6} ; For example, μ=0refers to subcarrier spacing 15kHz or 15·103Hz; μ=1 refers to subcarrier spacing 30kHz or 30·103Hz; μ=2 refers to subcarrier spacing 60kHz or 60·103Hz; μ=3 refers to subcarrier spacing 120kHz or 120·103Hz; μ=4 refers to subcarrier spacing 240kHz or 240·103Hz; μ=5 refers to subcarrier spacing 480kHz or 480·103Hz; μ=6 refers to subcarrier spacing 960kHz or 960·103Hz.
[0161] In some embodiments, the value of AS or the length of CP and / or value of subcarrier spacing or value of μ and / or whether normal CP or extended CP configured may be based on the configuration corresponding to the cell or component carrier (CC) or bandwidth part (BWP) where the first plurality of measurement resources configured.
[0162] In some embodiments, AD may be one or more of: In some embodiments, Δf may represent or refer to a value of subcarrier spacing. In some embodiments, Δf=2μ*15 kHz or Δf=2μ*15*103 Hz.
[0163] In some embodiments, Δfmax may represent or refer to a value of subcarrier spacing. For example, Δfmax may be 480kHz or 480·103Hz. In some embodiments, Nf may represent or refer to a positive integer. For example, Nf refers to a number of time units Tc. For example, Nf may be 4096. In some embodiments, Δfref may represent or refer to a value of reference subcarrier spacing. For example, Δfref may be 15 kHz or 15·103Hz. In some embodiments, Nf, ref may represent or refer to a positive integer. For example, Nf, ref may refer to a number of time units Tc. For example, Nf, ref may be 2048.
[0164] In some embodiments, Tc may represent a time unit. In some embodiments, Tc may be defined as Tc=1 / (Δfmax·Nf) . For example, Δfmax=480·103Hz, and Nf=4096. In some embodiments, Ts may be defined as Ts=1 / (Δfref·Nf, ref) . For example, Δfref=15·103Hz, and Nf, ref=2048. In some embodiments, κ may be a positive integer or a constant. In some embodiments, κ=64 or κ=Ts / Tc.
[0165] In some embodiments, the at least one second information in the second measurement report (or the second subset of the measurement report) may comprise one or more of: a payload size for indication of a first offset (e.g., corresponding to one CSI-RS resource (e.g., with index m) (e.g., excluding or different from the second reference CSI-RS resource) (e.g., the first offset corresponding to the CSI-RS resource with index m may be relative to the second reference CSI-RS resource (e.g., with index mref) ) ) (e.g., frequency domain basis offset between TRPs) , a payload size for indication of a range (or starting of window) for the first offset corresponding to the CSI-RS resource (e.g., with index m) (e.g., excluding or different from the second reference CSI-RS resource, a range for indication of the plurality of second vectors corresponding to CSI-RS resource (e.g., with index m) (e.g., excluding or different from the second reference CSI-RS resource, or a value of the sixth parameter related to the first offset (e.g., represented as T*O3 or O4) .
[0166] In some embodiments, the payload size for indication and / or the range of values of the first offset (e.g., of at least one codebook indicators e.g., in the second measurement report) corresponding to the CSI-RS resource (e.g., with index m) and / or selection or not corresponding to the CSI-RS resource (e.g., with index m) and / or whether the CSI-RS resource (e.g., with index m) is selected or not and / or whether the CSI-RS resource (e.g., with index m) is comprised in the N0 selected CSI-RS resource (s) and / or the value of a sixth parameter related to the first offset (e.g., represented as T*O3 or O4) and / or indication of second vectors may be based on one or more of: the value of delay offset (or value of dn, offset in the first measurement report) corresponding to the CSI-RS resource set (e.g., the CSI-RS resource set with index n ) which is associated with the CSI-RS resource (e.g., with index m) , the value of indication of whether inside or outside of the first range (e.g., corresponding to the CSI-RS resource set with index n) which is associated with the CSI-RS resource (e.g., with index m) (e.g., value of gn) , the value of the first parameter (e.g., value of AD) , the value of the second parameter (e.g., value of MD) , or the value of the fifth parameter (e.g., value of O3) .
[0167] In the following, more details about the first and second report configurations will be discussed first.
[0168] In some embodiments, the first report configuration and the second report configuration may be associated with each other. In some embodiments, the association may be established by comprising a first identity associated with the first report configuration in the second report configuration. Alternatively, in some embodiments, the association may be established by comprising a second identity associated with the second report configuration in the first report configuration. Alternatively, in some embodiments, the association may be established by comprising the first identity and the second identity in a third report configuration.
[0169] In some embodiments, as discussed above, there may be a first report configuration, a second report configuration. Further, there may be an association between the first report configuration and the second report configuration. In some embodiments, the at least one configuration may further comprise indication of the association.
[0170] In some embodiments, the indication of the association may be configured in the first report configuration. In some embodiments, one first report configuration may be configured to be associated with one second report configuration. In some embodiments, one first report configuration may be configured to be associated with more than one second report configuration (or a list of second report configurations) . Examples can be shown as below.
[0171] one first report configuration associated with one second report configuration
[0172] one first report configuration associated with more than one second report configuration
[0173] In some embodiments, the association may be configured in the second report configuration. In some embodiments, one second report configuration may be associated with one first report configuration.
[0174] In some embodiments, the association may be implied if the first report configuration and the second report configuration are comprised in a same trigger state (e.g., CSI-AperiodicTriggerState) . For example, in case of both the first measurement report and the second measurement report are aperiodic.
[0175] In some embodiments, the at least one configuration may comprise a third report configuration, wherein the third report configuration may comprise the group of CSI-RS resource set (s) (e.g., associated with a first report quantity or the first subset of measurement report, e.g., for frequency offset and / or delay offset and / or phase offset reporting) and the fifth set of CSI-RS resource (s) (e.g., associated with a second report quantity or the second subset of measurement report, e.g., for CSI reporting) .
[0176] In some embodiments, a first number of RS resource sets in the group of RS resource sets (or in the group of CSI-RS resource set (s) ) may be assumed (or may be expected) to be the same as a second number of RS resources in the set of RS resources (or in the fifth set of CSI-RS resource (s) ) . In some embodiments, MTRP may be expected to be or assumed to be same as NTRP.
[0177] In some embodiments, a first number of RS resource sets in the group of RS resource sets (or in the group of CSI-RS resource set (s) ) may be no less than two (e.g., MTRP may be no less than 2. For example, MTRP may be 2 or 3 or 4. For another example, 2≤NTRP≤16) . In some embodiments, a second number of RS resources in the set of RS resources (or in the fifth set of CSI-RS resource (s) ) may also be no less than two (e.g., MTRP may be no less than 2. For example, M may be 2 or 3 or 4. For another example, 2≤MTRP≤16) .
[0178] In some embodiments, MTRP=NTRP.
[0179] In some cases, the second number of RS resources may be not equal to the first number of RS resource sets or MTRP may be different from NTRP, or the first number of RS resource sets and / or the second number of RS resources may be equal to 1. If so, further clarifications are needed as discussed below.
[0180] In some embodiments, in a case that the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set (e.g., NTRP=1) and / or in a case that the set of RS resources (or the fifth set of CSI-RS resource (s) ) comprises one RS resource (e.g., MTRP=1) , the terminal device 110 may perform at least one of the following: ignoring the first report configuration, ignoring the measurement for the first measurement report, ignoring the measurement on the group of RS resource sets (or the group of CSI-RS resource set (s) ) , disabling determining the first measurement report, disabling transmitting the first measurement report, or determining the second measurement report without assuming pre-compensation with the first measurement report.
[0181] In some embodiments, in a case that the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set (e.g., NTRP=1) and / or the set of RS resources (or the fifth set of CSI-RS resource (s) ) comprises one RS resource (e.g., MTRP=1) , the terminal device 110 may transmit the first measurement report comprising a frequency offset and / or a doppler offset based on the RS resource set in the group of RS resource sets (or in the group of CSI-RS resource set (s) ) , and then may transmit the second measurement report based on the first measurement report by assuming pre-compensation with the frequency offset and / or the doppler offset in or related to the first measurement report.
[0182] More examples of are discussed for a better understanding. In some embodiments, the first report configuration may comprise a group of CSI-RS resource set (s) (e.g., TRS sets or sets of CSI-RS resources for CSI-RS for tracking, the number of sets may be NTRP) . In some embodiments, the second report configuration may comprise a set of CSI-RS resources (e.g., the number of CSI-RS resources may be NTRP or MTRP. For example, MTRP≤NTRP) .
[0183] In some embodiments, the number of CSI-RS resource sets in the group of CSI-RS resource set (s) (or in the group of CSI-RS resource set (s) ) may be assumed or expected to be same as the number of resources in the set of CSI-RS resource (s) (or in the fifth set of CSI-RS resource (s) ) .
[0184] In some embodiments, the group of CSI-RS resource set (s) may be applied for the first measurement report, the set of CSI-RS resources (or the fifth set of CSI-RS resource (s) ) may be applied for the second measurement report.
[0185] Embodiments where pre-compensation based on the first measurement report is configured are discussed as below. In some embodiments, the number of CSI-RS resource sets (e.g., represented as NTRP) in the group of CSI-RS resource sets may be no less than 2 and / or the number of CSI-RS resources (e.g., represented as NTRP or MTRP) in the set of CSI-RS resources (or in the fifth set of CSI-RS resources) may be no less than 2.
[0186] In some embodiments, in case of NTRP=1 and / or MTRP=1, the group of CSI-RS resource sets (e.g., only comprising one CSI-RS resource set) may be ignored or the first measurement report may not be determined or calculated or reported. Alternatively, in some embodiments, the group of CSI-RS resource sets (e.g., only comprising one CSI-RS resource set) may be applied to measure frequency offset (and / or doppler shift) or second offset (e.g., third vector offset (or doppler vector offset) ) , and the second measurement report may be based on the corresponding CSI-RS resource in the fifth set of CSI-RS resource (s) assuming pre-compensation with the frequency offset (and / or the doppler shift) or second offset (e.g., third vector offset (or doppler vector offset) ) .
[0187] In some embodiments, in case of NTRP>1 and MTRP=1 (or in case of NTRP>MTRP or in case of CSI-RS resource (e.g., TRP) selection is configured for the second measurement report, and / or in case of only one CSI-RS resource (e.g., TRP) is selected in the second measurement report and / or in case of only one CSI-RS resource associated with or comprised in the second measurement report) , the second measurement report may be:
[0188] - based on the MTRP CSI-RS resources or the one CSI-RS resource (e.g., CSI-RS resource with index m) assuming pre-compensation with (or based on report in) or related to the first measurement report (e.g., delay offset and / or frequency offset and / or phase offset) corresponding to the associated or mapped CSI-RS resource set (e.g., CSI-RS resource set with index n) in the group of CSI-RS resource set (s) . For example, at least when the CSI-RS resource may be shared between UEs;
[0189] - or the second measurement report may be calculated without assuming pre-compensation with (or based on report in) or related to the first measurement report.
[0190] According to some embodiments of the present disclosure, there should be a mapping between one CSI-RS resource set in the group of RS resource sets (or the group of CSI-RS resource set (s) ) associated with the first measurement report and one CSI-RS resource in the fifth set of CSI-RS resource (s) associated with the second measurement report.
[0191] In some embodiments, a one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources (or the fifth set of CSI-RS resource (s) ) may be based on a configured order (e.g., increasing configuration order or decreasing configuration order) of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order (e.g., increasing configuration order or decreasing configuration order) of the set of RS resources (or the fifth set of CSI-RS resource (s) ) .
[0192] Alternatively, in some embodiments, the one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources (or the fifth set of CSI-RS resource (s) ) may be based on an increasing (or decreasing) order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order (e.g., increasing configuration order or decreasing configuration order) of the set of RS resources (or the fifth set of CSI-RS resource (s) ) .
[0193] Alternatively, in some embodiments, the one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources may be based on an increasing (or decreasing) order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and an increasing order (or decreasing) of RS resource index of the set of RS resources (or in the fifth set of CSI-RS resource (s) ) .
[0194] Alternatively, in some embodiments, the one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources may be based on association among the CSI-RS resource set in the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources (or the fifth set of CSI-RS resource (s) ) configured by the network device 120.
[0195] In some embodiments, each CSI-RS resource in the set of CSI-RS resources (or the fifth set of CSI-RS resource (s) ) (e.g., CSI-RS resource with index m or with index n) may be mapping to or corresponding to one CSI-RS resource set in the group of CSI-RS resource sets (e.g., CSI-RS resource set with index n) .
[0196] In some embodiments, one to one mapping based on the configured order in the group of CSI-RS resource sets and the configured order in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) .
[0197] In some embodiments, the configured order may be increasing configuration order or decreasing configuration order (e.g., based on the at least one configuration) .
[0198] In some embodiments, a first CSI-RS resource (or CSI-RS resource with index 0) in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be associated with or mapping to a first CSI-RS resource set (or CSI-RS resource set with index 1 or with index 0) in the first group of CSI-RS resource sets, a second CSI-RS resource (or CSI-RS resource with index 1) in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be associated with or mapping to a second CSI-RS resource set (or CSI-RS resource set with index 2 or with index 1) in the group of CSI-RS resource sets, …, (NTRP)-th CSI-RS resource (or CSI-RS resource with index NTRP-1) in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be associated with or mapping to (NTRP)-th CSI-RS resource set (or CSI-RS resource set with index NTRP or with index NTRP-1) in the group of CSI-RS resource sets.
[0199] In some embodiments, the m1-th or m-th configured CSI-RS resource (or CSI-RS resource with index m1 or with index m) in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be associated with or mapped to or correspond to the (n+1) -th or m1-th or m-th or (m1+1)-th or (m+1)-th configured CSI-RS resource set (or CSI-RS resource with index (n+1) or with index m or with index m1 or with index m+1 or with index m1+1) in the group of CSI-RS resource sets. In some embodiments, n=0, 1, …, NTRP-1. In some embodiments, m1=1, 2, ..., NTRP.
[0200] In some embodiments, a one to one mapping based on the configured order in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) and the increasing (or decreasing) order of CSI-RS resource set index or identity (ID) (e.g., from lowest to highest CSI-RS resource set ID or from the highest to lowest CSI-RS resource set ID) in the group of CSI-RS resource sets.
[0201] In some embodiments, a first configured CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) mapping to the CSI-RS resource set with lowest resource set ID in the group of CSI-RS resource sets, the second configured CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) mapping to the CSI-RS resource set with second lowest resource set ID in the group of CSI-RS resource sets, …NTRP-th configured CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) mapping to the CSI-RS resource set with NTRP-th or the highest resource set ID in the group of CSI-RS resource sets.
[0202] In some embodiments, the m1-th or m-th configured CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be associated with or mapped to or correspond to the CSI-RS resource set with (n+1) -th or m1-th or m-th or (m1+1) -th or (m+1)-th lowest CSI-RS resource set ID in the group of CSI-RS resource sets.
[0203] In some embodiments, a one to one mapping based on the increasing (or decreasing) order of CSI-RS resource index (e.g., from lowest to highest CSI-RS resource index or from highest to lowest CSI-RS resource index) in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) and the increasing (or decreasing) order of CSI-RS resource set ID (e.g., from lowest to highest CSI-RS resource set ID or from highest to lowest CSI-RS resource set ID) in the group of CSI-RS resource sets.
[0204] In some embodiments, each of the CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) may be configured with an association to one of the CSI-RS resource set in the group of CSI-RS resource sets. In some embodiments, the association may be based on configuration of CSI-RS resource set index or CSI-RS resource set ID comprised in the at least one configuration for the set of CSI-RS resources (or the fifth set of CSI-RS resource (s) ) or at least one configuration for the CSI-RS resources in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) .
[0205] In some embodiments, if one CSI-RS resource in the set of CSI-RS resources (or in the fifth set of CSI-RS resource (s) ) not configured to be associated with any CSI-RS resource set in the group of CSI-RS resource sets (and / or if NTRP<MTRP) , the codebook indices or codebook indicators and / or a first offset (e.g., related to a second reference CSI-RS resource) (e.g., FD basis offset) corresponding to the CSI-RS resource may be calculated or determined without pre-compensation (e.g., based on or related to the first measurement report) .
[0206] In some embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) may comprise a reference RS resource set (or the first reference CSI-RS resource set) (and / or at least one remaining RS resource set) . In some embodiments, an RS resource in the set of RS resources (or a CSI-RS resource in the fifth CSI-RS resource sets) which is associated with the reference RS resource set (or the first reference CSI-RS resource set) may be determined to be the reference RS resource (or the second reference CSI-RS resource) (e.g., for the second measurement report) .
[0207] In some embodiments, the second measurement report may comprise a set of selected RS resources (e.g., represented as the N0 selected CSI-RS resource (s) (e.g., selected from the fifth set of CSI-RS resource (s) ) . In some embodiments, an RS resource in the set of the selected RS resources (or in the N0 selected CSI-RS resource (s) which is associated with a lowest offset value (or associated with a CSI-RS resource set corresponding to a lowest value of reported offset (e.g., delay offset or frequency offset or phase offset) ) comprised in the first measurement report may be determined to be the second reference RS resource.
[0208] In some embodiments, the first measurement report may comprise: a first indicator of a first reference CSI-RS resource set (e.g., represented as CSI-RS resource set with index nref1) , N values of delay offset (or N indicators of delay offset intervals) , N indicators of inside or outside (e.g., each of N indicators may indicate whether one of the N values of delay offset is inside or outside of a first range or may indicate whether a summation of one of the N values of delay offset and a corresponding delay spread is inside or outside of the first range) , a second indicator of a second reference CSI-RS resource set (e.g., represented as CSI-RS resource set with index nref2) , N values of frequency offset (or N indicators of frequency offset) . In some embodiments, the second reference CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) may be determined based on the first reference CSI-RS resource set. In some embodiments, the second reference CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) may be determined based on the CSI-RS resource set associated with delay offset report. In some embodiments, the second reference CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) may be determined based on the second reference CSI-RS resource set. In some embodiments, the second reference CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) may be determined based on the CSI-RS resource set associated with frequency offset report. In some embodiments, the pre-compensation may be applied with delay offset firstly and then applied with frequency offset for one CSI-RS resource. In some embodiments, the pre-compensation may be applied with frequency offset firstly and then applied with delay offset for one CSI-RS resource.
[0209] In some embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) may comprise a reference RS resource set (or a first reference CSI-RS resource set) , and the set of RS resources (or the fifth set of CSI-RS resource (s) ) may comprise the reference RS resource (or the second reference CSI-RS resource) . In some embodiments, if the reference RS resource (or the second reference CSI-RS resource) is not associated with the reference RS resource set (or the first reference CSI-RS resource set and / or the second reference CSI-RS resource set) or in a case that the reference RS resource (or the second reference CSI-RS resource) (e.g., which is associated with the first reference CSI-RS resource set and / or which is associated with the second reference CSI-RS resource set) is not selected or not comprised in the N0 selected CSI-RS resource (s) (e.g., in the second measurement report) and / or if the first measurement report comprises at least one delay offset and / or at least one frequency offset, pre-compensation or measurement corresponding to one RS resource (e.g., CSI-RS resource with index m) for the second measurement report may be based on one or more of:
[0210] - a second offset (e.g., a delay offset or a frequency offset or a phase offset) for pre-compensation or measurement for the reference RS resource in the set of RS resources (or for the second reference CSI-RS resource in the fifth set of CSI-RS resource (s) ) , wherein the second offset may be determined based on an offset (e.g., a delay offset or a frequency offset or a phase offset in the first measurement report corresponding to the CSI-RS resource set which is associated with the second reference CSI-RS resource) reported in the first measurement report corresponding to a CSI-RS RS resource set which is associated with the second reference CSI-RS resource;
[0211] - no pre-compensation (e.g., for delay offset or for frequency offset) for the second reference CSI-RS resource in the fifth set of CSI-RS resource (s) ;
[0212] - no pre-compensation (e.g., for delay offset or for frequency offset) for the CSI-RS resource in the fifth set of CSI-RS resource (s) , wherein the CSI-RS resource may be associated with the first reference CSI-RS resource set in the group of CSI-RS resource set (s) . For example, there is no offset (e.g., delay offset or frequency offset or phase offset) reported corresponding to the first reference CSI-RS resource set in the first measurement report;
[0213] - a third offset (e.g., delay offset or frequency offset or phase offset) for pre-compensation or measurement corresponding to a CSI-RS resource (e.g., CSI-RS resource with index m) (e.g., in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) ) , wherein the third offset may be determined based on a difference value between an offset (e.g., delay offset or frequency offset or phase offset reported in the first measurement report) corresponding to a CSI-RS resource set associated with the CSI-RS resource (e.g., the offset may be represented as q1) and the offset (e.g., delay offset or frequency offset or phase offset reported in the first measurement report) corresponding to a CSI-RS resource set associated with the second reference CSI-RS resource (e.g., the offset may be represented as q2) . In some embodiments, the third offset may be q1-q2;
[0214] - a fourth offset (e.g., delay offset or frequency offset or phase offset) for pre-compensation or measurement corresponding to a CSI-RS resource (e.g., CSI-RS resource with index m) (e.g., in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) ) , wherein the fourth offset may be determined based on the offset (e.g., delay offset or frequency offset or phase offset reported in the first measurement report) corresponding to a CSI-RS resource set associated with the CSI-RS resource; or
[0215] - a fifth offset (e.g., delay offset or frequency offset or phase offset) for pre-compensation or measurement corresponding to a CSI-RS resource (e.g., CSI-RS resource with index m) (e.g., in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) ) , wherein the CSI-RS resource may be associated with the first reference CSI-RS resource set in the group of CSI-RS resource set (s) , wherein the fifth offset may be determined based on a difference value between an offset (e.g., delay offset or frequency offset or phase offset) corresponding to the first reference CSI-RS resource set associated with the CSI-RS resource (e.g., the offset may be 0) and the offset (e.g., delay offset or frequency offset or phase offset reported in the first measurement report) corresponding to a CSI-RS resource set associated with the second reference CSI-RS resource (e.g., the offset may be represented as q2) . In some embodiments, the fifth offset may be 0-q2 or -q2;
[0216] - a sixth offset (e.g., a frequency offset) for pre-compensation or measurement for the second reference CSI-RS resource in the fifth set of CSI-RS resource (s) , wherein the sixth offset may be determined based on a difference value between an offset (e.g., a frequency offset) in the first measurement report corresponding to the CSI-RS resource set which is associated with the second reference CSI-RS resource (e.g., the offset may be represented as p1) and an offset (e.g., a frequency offset) in the first measurement report corresponding to the second reference CSI-RS resource set (e.g., the offset may be represented as p2) . For example, when the first reference CSI-RS resource set is different from the second reference CSI-RS resource set. In some embodiments, the sixth offset may be p1-p2; or
[0217] - a seventh offset (e.g., frequency offset) for pre-compensation or measurement corresponding to a CSI-RS resource (e.g., CSI-RS resource with index m) (e.g., in the fifth set of CSI-RS resource (s) or in the N0 selected CSI-RS resource (s) ) , wherein the CSI-RS resource may be associated with the second reference CSI-RS resource set in the group of CSI-RS resource set (s) , wherein the seventh offset may be determined based on a difference value between an offset (e.g., frequency offset) corresponding to the second reference CSI-RS resource set associated with the CSI-RS resource (e.g., the offset may be 0) and the offset (e.g., frequency offset reported in the first measurement report) corresponding to a CSI-RS resource set associated with the second reference CSI-RS resource (e.g., the offset may be represented as p2) . In some embodiments, the fifth offset may be 0-p2 or -p2.
[0218] In some embodiments, the first measurement report may comprise an indication of a first reference CSI-RS resource set (or a first reference TRS set) . In some embodiments, a second reference CSI-RS resource (e.g., represented as nref2) for the second measurement report (and / or the indication of first offset associated with the second measurement report (e.g., offset for second vector (or FD vector) ) corresponding to one CSI-RS resource (e.g., the CSI-RS resource with index m) (e.g., except the second reference CSI-RS resource) relative to the second reference CSI-RS resource e.g., the CSI-RS resource with index mref) may be determined based on the first reference CSI-RS resource set (e.g., represented as nref1) in the first measurement report or based on the reported value of offset (e.g., delay offset or frequency offset or phase offset) in the first measurement report.
[0219] In some embodiments, the second reference CSI-RS resource for the second measurement report may be the one CSI-RS resource which is associated with the first reference CSI-RS resource set. In some embodiments, mref=nref1+1 or mref=nref1. For example, at least when TRP selection not configured (or restrictedCMR-Selection is configured) .
[0220] In some embodiments, an offset (e.g., a first offset) associated with the second measurement report dm may be reported for the m-th CSI-RS resource in the fifth set of CSI- RS resource (s) . relative to the second reference CSI-RS resource (e.g., which is associated with the first CSI-RS resource set indicated by nref1) . For example, with m=1, ..., NTRPand m≠mref.
[0221] In some embodiments, (in case of TRP selection is configured or in case of restrictedCMR-Selection is not configured) ) , the second reference CSI-RS resource for the second measurement report may be the one CSI-RS resource among the selected N0 CSI-RS resources which is associated with a CSI-RS resource set corresponding to a lowest value of offset (e.g., delay offset or frequency offset or phase offset) among the N0 CSI-RS resource sets which are associated with the selected N0 CSI-RS resources. For example, at least if the second reference CSI-RS resource (e.g., associated with the first reference CSI-RS resource set) is comprised in the selected N0 CSI-RS resources.
[0222] In some embodiments, in case the second reference CSI-RS resource is not the one CSI-RS resource associated with the first reference CSI-RS resource set and / or in case of the CSI-RS resource associated with the first reference CSI-RS resource set is not selected or not indicated or comprised in the second measurement report, the offset (e.g., delay offset or frequency offset or phase offset) for pre-compensation for one CSI-RS resource (e.g., excluding the second reference resource) in the fifth set of CSI-RS resource (s) may be based on the difference between the reported offset (e.g., delay offset or frequency offset or phase offset) corresponding to the CSI-RS resource (e.g., the offset may be represented as q1) and the delay offset corresponding to a CSI-RS resource set which is associated with the second reference CSI-RS resource (e.g., the offset may be represented as q2) . In some embodiments, the offset for pre-compensation for the CSI-RS resource may be q1-q2.
[0223] In some embodiments, the CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) which is associated with the first reference CSI-RS resource set and / or the CSI-RS resource which is associated with the second reference CSI-RS resource set may be assumed or expected to be included or comprised or selected in the N0 selected CSI-RS resources. For example, in case of TRP selection is configured or in case of restrictedCMR-Selection is not configured. In some embodiments, the bit (e.g., in the bitmap for CSI-RS resource selection in the second measurement report) corresponding to the CSI-RS resource (e.g., in the fifth set of CSI-RS resource (s) ) which is associated with the first reference CSI-RS resource set and / or corresponding to the CSI-RS resource which is associated with the second reference CSI-RS resource set may be assumed or expected to be 1.
[0224] As illustrated in FIG. 2, after transmitting the first measurement report, the terminal device 110 may perform (215-1) pre-compensation (and the network device 120) may perform (215-2) the pre-compensation accordingly. In the following, some example processes for the pre-compensation will be discussed.
[0225] In some embodiments, an offset (e.g., delay offset of frequency offset or phase offset) reported in the first measurement report may indicate an interval, and the terminal device 110 (and / or the network device 120) may perform a pre-compensation for a CSI-RS resource in the fifth set of CSI-RS resource (s) with one or more of the following:
[0226] - an offset value corresponding to a lower bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as δi or or or or 0) ,
[0227] - a measured offset value (e.g., a measured delay offset value and / or a measurement frequency offset value) ) corresponding to the CSI-RS resource set which is associated with the CSI-RS resource; For example, the measured offset value may be a real or final measured offset value. For another example, the measured offset value may fall into the interval corresponding to the reported offset corresponding to the CSI-RS resource set in the first measurement report. For another example, the measured offset value may be a real or final measured delay offset value. For another example, the measured offset value may be a real or final measured frequency offset value. For another example, the measured offset value may be different from the lower bound or upper bound of the interval corresponding to the reported offset corresponding to the CSI-RS resource set in the first measurement report;
[0228] - 0 or no pre-compensation if the corresponding interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource is the last interval or the interval (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) ;
[0229] - AD if the corresponding interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource is the last interval or the interval (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) ;
[0230] - an offset value corresponding to an upper bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as δi+1 or or or or
[0231] - an offset value corresponding to an average of the lower bound and the upper bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as or or or ) .
[0232] In some embodiments, the terminal device may be configured to perform PMI calculation and / or second measurement report and / or CSI calculation and / or measurement for second measurement report and / or CSI report assuming pre-compensation using the reported or the measured offset (e.g., delay offset or frequency offset or phase offset) .
[0233] In some embodiments, the offset (e.g., delay offset or frequency offset or phase offset) applied for pre-compensation or applied for second measurement report or which the second measurement report is based on may be the measured offset or measured value. For example, at least for delay offset. In some embodiments, the measured offset or measured value for delay offset may be different from the reported offset or the reported value or the reported interval.
[0234] In some embodiments, one of the N values of delay offset corresponding to the (n+1) -th CSI-RS resource set or corresponding to the CSI-RS resource set with index n (e.g., Dn, offset) in the first measurement report or the first subset of the measurement report may indicate an interval where the delay offset falls into. In some embodiments, an interval may be represented as [δi, δi+1) or (δi, δi+1] or [δi, δi+1] or (δi, δi+1) or (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) . In some embodiments, In some embodiments, i may be non-negative integer. For example, i=0, 1, …MD-1. In some embodiments, i may be Dn, offset or i may be indicated by Dn, offset. In some embodiments, δi may be the lower bound of the (i+1) -th interval, δi+1 may be the upper bound of the (i+1) -th interval. In some embodiments, [A, B) may represent the range of interval from A to B, and the interval comprises the value of A and the interval does not comprise the value of B. In some embodiments, (A, B] may represent the range of interval from A to B, and the interval does not comprise the value of A and the interval comprises the value of B. In some embodiments, [A, B] may represent the range of interval from A to B, and the interval comprises the value of A and the interval comprises the value of B. In some embodiments, (A, B) may represent the range of interval from A to B, and the interval does not comprise the value of A and the interval does not comprise the value of B. In some embodiments, A may be one or more of: 0, δi, AD or δ0. In some embodiments, B may be one or more of: δi+1, ∞, AS or δ1.
[0235] In some embodiments, in a case that the upper boundary of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with a CSI-RS resource is infinite and / or indicator of delay offset indicating the last interval and / or i=MD-1 or dn, offset=MD-1 (e.g., the last interval or the interval or interval of (AD, ∞] or [AD, ∞]or (AD, ∞) or [AD, ∞) ) , the terminal device 110 (and / or the network device 120) may not pre-compensate or may pre-compensate with 0 or may disable pre-compensation for the CSI-RS resource or perform a pre-compensation for the CSI-RS resource with the lower bound of the reported interval (e.g., with AD) or perform a pre-compensation for the CSI-RS resource with value 0.
[0236] In some embodiments, in a case that indicator of frequency offset indicating the last value or invalid state or invalid value of invalid or or i=MFO-1 or Fn, offset=MFO-1, the terminal device 110 (and / or the network device 120) may not pre-compensate or may pre-compensate with 0 or may disable pre-compensation (e.g., for frequency offset) for the CSI-RS resource or perform a pre-compensation for the CSI-RS resource with the value of AFO or perform a pre-compensation for the CSI-RS resource with value 0.
[0237] In some embodiments, the applied value of delay offset for pre-compensation for one CSI-RS resource may be the lower bound or upper bound or average of the lower bound or upper bound of the interval for reported delay offset corresponding to one CSI-RS resource set (e.g., one TRP) which is associated with the CSI-RS resource. For example, at least for the reported delay offset not fall into the last interval. In some embodiments, the applied value may be δi or δi+1 or (δi+δi+1) / 2. Further, in case of the reported delay offset falls into the last interval, the applied value may be AD or 0 (no pre-compensation) .
[0238] In some embodiments, the indication of one delay report corresponding to one CSI-RS resource set with index n may indicate which interval Dn, offset falls into, the interval may be represented as [δi, δi+1) or (δi, δi+1] , wherein i=0, 1, …MD-1. There may be MD intervals. In some embodiments, the first interval may be or In some embodiments, the last interval may be (AD, ∞] or [AD, ∞] . In some embodiments, the interval with index (i+1) (e.g., the second interval to the (MD-1) -th interval) may be [δi, δi+1) or [δi, δi+1], i=1, 2, …MD-2.
[0239] As discussed above, a payload size or a range of the second information comprised in the second measurement report may be based at least in part on the first information comprised in the first measurement report. Such example embodiments will be discussed in the following.
[0240] In some embodiments, if at least one of the following:
[0241] - a value of delay offset (or frequency offset or phase offset) corresponding to a CSI-RS resource set is less than or equal to a first threshold,
[0242] - the value of delay offset corresponding to the CSI-RS resource set is inside of the first range,
[0243] - indication of inside corresponding to the CSI-RS resource set in the first measurement report
[0244] - the value of frequency offset corresponding to the CSI-RS resource set is inside of the second range,
[0245] - the value of phase offset corresponding to the CSI-RS resource set is inside of the third range,
[0246] - a summation of a value of delay offset and a spread corresponding to the CSI-RS resource set is inside of the first range,
[0247] - a summation of a value of frequency offset and a spread corresponding to the CSI-RS resource set is inside of the second range,
[0248] - a summation of a value of phase offset and a spread corresponding to the CSI-RS resource set is inside of the third range,
[0249] - the maximum value for a delay offset (or frequency offset or phase offset) report (e.g., value of AD or AFO) is smaller than or equal to a second threshold,
[0250] - the resolution or unit for a delay offset (or frequency offset or phase offset) report (e.g., value of MD or MFO) is larger than or equal to a third threshold, or
[0251] - the value of ratio between the maximum value for the delay offset (or frequency offset) report (e.g., value of AD or value of AFO ) and the resolution or unit for the delay offset (or frequency offset) report (e.g., value of MD or value of MFO ) is smaller than or equal to a fourth threshold. For example, the value of ratio may be or or or
[0252] a first offset in the second measurement report corresponding to a CSI-RS resource associated with the CSI-RS resource set may be within a first range or may be assumed to be 0 (e.g., no need to report) , and / or the sixth parameter for indication of the first offset may be based on the configured value of the fifth parameter multiplied with 2 or 3 or 4 (e.g., the sixth parameter may be T*O3 or O4. For example, T may be 2 or 3 or 4. For another example, O4=T*O3) .
[0253] In some embodiments, if at least one of the following:
[0254] - a value of delay offset (or frequency offset or phase offset) corresponding to a CSI-RS resource set is larger than or equal to the first threshold,
[0255] - the value of delay offset corresponding to the CSI-RS resource set is outside of the first range,
[0256] - indication of outside corresponding to the CSI-RS resource set in the first measurement report,
[0257] - indicator of delay offset indicating the last interval and / or i=MD-1 or dn, offset=MD-1,
[0258] - indicator of frequency offset indicating the last value or invalid state or invalid value of invalid or or Fn, offset=MFO-1,
[0259] - the value of frequency offset corresponding to the CSI-RS resource set is outside of the second range,
[0260] - the value of phase offset corresponding to the CSI-RS resource set is outside of the third range,
[0261] - a summation of a value of delay offset and a spread corresponding to the CSI-RS resource set is outside of the first range,
[0262] - a summation of a value of frequency offset and a spread corresponding to the CSI-RS resource set is outside of the second range,
[0263] - a summation of a value of phase offset and a spread corresponding to the CSI-RS resource set is outside of the third range,
[0264] - the maximum value for a delay offset (or frequency offset or phase offset) report (e.g., value of AD or AFO) is larger than or equal to the second threshold,
[0265] - the resolution or unit for a delay offset (or frequency offset or phase offset) report (e.g., value of MD or MFO) report is smaller than or equal to the third threshold, or
[0266] - the value of ratio between the maximum value for the delay offset report (or frequency offset) report (e.g., value of AD or value of AFO ) and the resolution or unit for the delay offset report (or frequency offset) report (e.g., value of MD or value of MFO ) is larger than or equal to the fourth threshold. For example, the value of ratio may be or or or
[0267] a first offset in the second measurement report corresponding to the CSI-RS resource associated with the CSI-RS resource set may be within a second range and / or the CSI-RS resource may be not selected in the second measurement report and / or the parameter for indication of the first offset may be based on the fifth parameter (e.g., the fifth parameter may be O3) . For example, the value of the fifth parameter may be configured to be 1 or 4.
[0268] In some embodiments, a size of bitmap corresponding to CSI-RS resources selected or reported in the second measurement report may be determined based on a number of CSI-RS resource sets with a value of delay offset (or frequency offset or phase offset) smaller than or equal to the first threshold in the first measurement report.
[0269] In some embodiments, if the value of the delay offset corresponding to the one CSI-RS resource set is larger than the first threshold and / or if the value of gn is 0 (or 1) (e.g., outside of the first range) and / or indicator of delay offset indicating the last interval and / or i=MD-1 or dn, offset=MD-1 and / or indicator of frequency offset indicating the last value or invalid state or invalid value of invalid or or Fn, offset=MFO-1, the bitmap for indication of N0 selected CSI-RS resource may exclude the CSI-RS resource which is associated with the CSI-RS resource set. For example, in this case, it can reduce the overhead for CSI-RS resource (e.g., TRP) selection.
[0270] In some embodiments, in a case of the fifth set of CSI-RS resources are semi-persistent or periodic, at least one offset value to be compensated corresponding to at least one CSI-RS resource for the second measurement report may be at least one latest reported offset or at least one latest measured offset whose instance’s last symbol is before at least one CSI-RS resource transmission occasion for each of the fifth set of CSI-RS resources no later than the channel state information (CSI) reference resource and / or no later than the first symbol of downlink control information (DCI) triggering the second measurement report.
[0271] In some embodiments, the second measurement report may further comprise an indication for requesting a measurement report (e.g., a further measurement report) for delay offset (or frequency offset or phase offset) reporting.
[0272] In some embodiments, the second measurement report may comprise indication of request for delay offset (and / or frequency offset and / or phase offset) report corresponding to one CSI-RS resource or inside of or outside of the first range for the first offset corresponding to the one CSI-RS resource. For example, the network device may further trigger a first measurement report based on the indication.
[0273] In some embodiments, if a state of the first offset is larger than or equal to or smaller than a value and / or if an indication of out of range for first offset is indicated in the second measurement report, the state or the indication may be applied for request of transmission of the first measurement report and / or the network may further indicate or trigger the first measurement report to the terminal device.
[0274] In some embodiments, at least one channel state information (CSI) processing unit (CPU) occupied by the first measurement report may be released until the last symbol of an uplink resource transmitting the second measurement report.
[0275] In some embodiments, the CPU occupied for the first measurement report may be released after the last symbol carrying the associated second measurement report.
[0276] In some embodiments, a number of CPUs (e.g., represented as OCPU) required or occupied for the first measurement report and the second measurement report (e.g., a combination or a joint of the first measurement report and the second measurement report or the third measurement report) may be based on a summation of a first number of CPUs (e.g., represented as OCPU1) required or occupied for the first measurement report and a second number of CPUs (e.g., represented as OCPU2) required or occupied for the second measurement report. In some embodiments, OCPU=OCPU1+OCPU2. For example, when the first measurement report and the second measurement report are triggered or indicated in one DCI (e.g., jointly triggered) and / or the first measurement report and the second measurement report are transmitted on same uplink resource (e.g., same PUCCH resource or same PUSCH resource) or on same slot or in same reporting instance.
[0277] In some embodiments, a number of CPUs (e.g., represented as OCPU) required or occupied for the first measurement report and the second measurement report (e.g., a combination or a joint of the first measurement report and the second measurement report or the third measurement report) may be based on a minimum one between a first value (e.g., represented as NCPU) and a summation of a first number of CPUs (e.g., represented as OCPU1) required or occupied for the first measurement report and a second number of CPUs (e.g., represented as OCPU2) required or occupied for the second measurement report and / or a second value (e.g., represented as ACPU ) . In some embodiments, OCPU=min (NCPU, (OCPU1+OCPU2) or OCPU=min (NCPU, (OCPU1+OCPU2+ACPU) . For example, when the first measurement report and the second measurement report are triggered or indicated in one DCI (e.g., jointly triggered) and / or the first measurement report and the second measurement report are transmitted on same uplink resource (e.g., same PUCCH resource or same PUSCH resource) or on same slot or in same reporting instance.
[0278] In some embodiments, a number of CPUs (e.g., represented as OCPU) required or occupied for the first measurement report and the second measurement report (e.g., a combination or a joint or an association of the first measurement report and the second measurement report or the third measurement report) may be based on a maximum one between a first number of CPUs (e.g., represented as OCPU1) required or occupied for the first measurement report and a second number of CPUs (e.g., represented as OCPU2) required or occupied for the second measurement report. In some embodiments, OCPU=max (OCP, OCPU2) . For example, when the first measurement report and the second measurement report are triggered or indicated in one DCI (e.g., jointly triggered) and / or the first measurement report and the second measurement report are transmitted on same uplink resource (e.g., same PUCCH resource or same PUSCH resource) or on same slot or in same reporting instance.
[0279] In some embodiments, a number of CPUs (e.g., represented as OCPU) required or occupied for the first measurement report and the second measurement report (e.g., a combination or a joint or an association of the first measurement report and the second measurement report or the third measurement report) may be based on a summation of a second value (e.g., represented as ACPU) and a maximum one between a first number of CPUs (e.g., represented as OCPU1) required or occupied for the first measurement report and a second number of CPUs (e.g., represented as OCPU2) required or occupied for the second measurement report and / or the number of CPUs (e.g., represented as OCPU) required or occupied for the first measurement report and the second measurement report (e.g., a combination or a joint or an association of the first measurement report and the second measurement report or the third measurement report) may not exceed or may not be larger than the first value (e.g., represented as NCPU) . In some embodiments, OCPU=min (NCPU, (ACPU+max (OCPU1, OCPU) ) . For example, when the first measurement report and the second measurement report are triggered or indicated in one DCI (e.g., jointly triggered) and / or the first measurement report and the second measurement report are transmitted on same uplink resource (e.g., same PUCCH resource or same PUSCH resource) or on same slot or in same reporting instance.
[0280] In some embodiments, NCPU may be positive integer. In some embodiments, 4≤NCPU≤16 or 4≤NCP ≤64. In some embodiments, NCPU may be 8 or 12 or 16. In some embodiments, NCPU may be 8. In some embodiments, OCPU1 may be positive integer. In some embodiments, 1≤OCPU1≤16or 1≤OCPU1≤64 or 1≤OCPU1≤NCPU. In some embodiments, OCPU1 may be positive integer. In some embodiments, 1≤OCPU2≤16 or 1≤OCPU2≤64 or 1≤OCPU2≤NCPU. In some embodiments, OCPU may be a positive integer. In some embodiments, 1≤OCPU≤16 or 1≤OCPU≤64 or 1≤OCPU≤NCPU.
[0281] In some embodiments, ACPU may be non-negative integer or positive integer. In some embodiments, 0≤ACPU≤4 or 0≤ACPU≤NTRP or 0≤ACPU≤2 or 1≤ACPU≤4 or 1≤ACPU≤NTR or 1≤ACPU≤2.. In some embodiments, ACPU may be 0 or 1 or 2. In some embodiments, ACPU may be reported based on UE capability indication and / or configured by the network device.
[0282] In some embodiments, the first measurement report may be configured as periodic or semi-persistent or aperiodic. In some embodiments, the first measurement report may be configured as aperiodic. In some embodiments, the second measurement report may be configured as periodic or semi-persistent or aperiodic. In some embodiments, the second measurement report may be configured as aperiodic. In some embodiments, if the first measurement report and the second measurement report are associated, the first measurement report may be aperiodic and the second measurement report may be aperiodic.
[0283] In some embodiments, the terminal device may receive a downlink control information (DCI) triggering or indicating the first measurement report and the second measurement report. In some embodiments, the second measurement report may be based on pre-compensation with report (e.g., with delay offset and / or frequency offset and / or phase offset) in or related to the first measurement report (e.g., when the first measurement report and the second measurement report are triggered or indicated in a same DCI) . For example, when the terminal device report capability on jointly triggering the first measurement report and the second measurement report and / or when the terminal device is configured with jointly triggering the first measurement report and the second measurement report. In some embodiments, in this case, the first measurement report and the second measurement report can be triggered or indicated in a same DCI or separately in different DCIs. In some embodiments, the second measurement report may be based on compensation (or pre-compensation) with the measured offset or reported offset (e.g., the measured delay offset or the reported delay offset or the measured frequency offset or the reported phase offset) in or related to the same reporting instance or in the same PUSCH or in the same PUCCH or in the same uplink resource indicated by the DCI (e.g., the DCI may trigger or indicate the first measurement report and the second measurement report (e.g., jointly) .
[0284] In some embodiments, the offset (e.g., delay offset (s) and / or frequency offset (s) and / or phase offset (s) ) in the first measurement report may be applicable and / or may be applied for pre-compensation for at least one second measurement report starting from a fifth timing and / or until a sixth timing and / or within a second time duration. In some embodiments, at least one second measurement report may apply or may be based on the offset (e.g., delay offset (s) and / or frequency offset (s) and / or phase offset (s) ) in the first measurement report starting from a fifth timing and / or until a sixth timing and / or within the second time duration.
[0285] In some embodiments, the fifth timing may be one or more of: the last symbol (or the first symbol) of measured instance for the first measurement report, the last symbol (or the first symbol) of reported instance for the first measurement report, the last symbol (or the first symbol) of an uplink resource (e.g., PUCCH resource or PUSCH resource) carrying the first measurement report, the last symbol (or the first symbol) of latest one of each CSI-RS resource in the group of CSI-RS resource set (s) (and / or in the second group of CSI-RS resource set (s) ) , a third time duration after the last symbol (or the first symbol) of an uplink resource (e.g., PUCCH resource or PUSCH resource) carrying the first measurement report, or the third time duration after the last symbol (or the first symbol) of reported instance for the first measurement report, the first symbol or the first slot which is the third time duration after the last symbol (or the first symbol) of an uplink resource (e.g., PUCCH resource or PUSCH resource) carrying the first measurement report, or the first symbol or the first slot which is the third time duration after the last symbol (or the first symbol) of reported instance for the first measurement report. In some embodiment, the third time duration may be a number (e.g., represented as s2) of slots or a number (e.g., represented as s2) of symbols. In some embodiments, s2 may be positive integer. In some embodiments, 1≤s2≤32 or 1≤s2≤336. In some embodiments, the third time duration may be reported based on UE capability and / or configured by the network device.
[0286] In some embodiments, the sixth timing may be one or more of: a second time duration after the fifth timing, a first symbol or a first slot which is the second time duration after the fifth timing, or when the first measurement report (and / or the delay offset and / or the frequency offset and / or the phase offset) expired. In some embodiment, the second time duration may be a number (e.g., represented as s1) of slots or a number (e.g., represented as s1) of symbols. In some embodiments, s1 may be positive integer. In some embodiments, 1≤s2≤128 or 1≤s2≤32 or 1≤s2≤336. In some embodiments, the second time duration may be reported based on UE capability and / or configured by the network device. In some embodiments, the second time duration may be expiration time for the first measurement report. In some embodiments, if the second time duration is not reported by UE capability and / or not configured by network device, the first measurement report may be applicable for pre-compensation until a new or a further first measurement report is transmitted or the second time duration may be assumed to be a default value. In some embodiments, the first measurement report may be applicable for pre-compensation until a new or a further first measurement report is transmitted.
[0287] In some embodiments, the second measurement report may be based on a first measurement report or a latest first measurement report or may apply the report (e.g., delay offset and / or frequency offset and / or phase offset) in a first measurement report or in a latest first measurement report for pre-compensation, if the first measurement report or the latest first measurement report is within the second time duration before the first symbol of DCI triggering the second measurement report and / or before the CSI reference resource related to the second measurement report. In some embodiments, the second measurement report may be based on a first measurement report or a latest first measurement report or may apply the report (e.g., delay offset and / or frequency offset and / or phase offset) in a first measurement report or in a latest first measurement report for pre-compensation, if there is at least one first measurement report transmitted within the second time duration before the first symbol of DCI triggering the second measurement report and / or before the CSI reference resource related to the second measurement report.
[0288] In some embodiments, the first number of CPUs occupied or required by the first measurement report (e.g., represented as OCPU1) or a first subset of the first number of CPUs occupied or required by the first measurement report (e.g., the subset of the first number of CPUs may be represented as OCPU1-RCPU1) may be released after a first timing or may be occupied until the first timing. In some embodiments, after the first timing, remaining of the first number of CPUs or a second subset of the first number of CPUs (e.g., represented as RCPU1) may be remained or maintained or kept or still occupied (for example, until a configuration of no association between the first measurement report and the second measurement report or until the second measurement report is not based on the first measurement report or until a second timing) . In some embodiments, the first timing may be the last symbol of the uplink resource carrying or with the first measurement report or the last symbol of transmission of the first measurement report. In some embodiments, the first timing may be the last symbol of the measured instance or the last symbol of the last one transmission occasion of at least one transmission occasion of each CSI-RS resource set in the group of CSI-RS resource set (s) and / or in the second group of CSI-RS resource set (s) .
[0289] In some embodiments, the first number of CPUs occupied or required by the first measurement report (e.g., represented as OCPU) or the remaining of the first number of CPUs or a second subset of the first number of CPUs (e.g., represented as RCPU1) may be released after or at the sixth timing (or when the first measurement report expired) . In some embodiments, the first number of CPUs occupied or required by the first measurement report (e.g., represented as OCPU1) or the remaining of the first number of CPUs or a second subset of the first number of CPUs (e.g., represented as RCPU1) may be occupied until the sixth timing (or until the first measurement report expired) .
[0290] In some embodiments, the second number of CPUs OCPU2 may be OCPU2=ceil (X1*MTRP) or OCPU2=ceil (X1*NTRP) or OCPU2=min (NCPU,ceil (X1*MTRP) ) or OCPU2=min (NCPU, ceil (X1*NTRP) ) .In some embodiments, X1 may be a parameter related to number of CPUs for the second measurement report. In some embodiments, X1may be reported based on UE capability indication and / or configured by the network device. In some embodiments, X1 may be one or more of {1, 1.5, 2} . In some embodiments, X1∈ {1, 1.5, 2} .
[0291] In some embodiments, (e.g., in case of the second measurement report is based on pre-compensation with or related to the first measurement report) , the second number of CPUs OCPU2 may be OCPU2=ceil (X1*MTR) +ACPU or OCPU2=ceil (X1*NTRP) +ACPU or OCPU2=min (NCPU, (ceil (X1*MTRP) +ACPU) ) or OCPU =min (NCPU, (ceil (X1*NTRP) +ACPU) ) or OCPU2=min (NCPU, ceil (X1*MTRP+ACPU) )or OCPU2=min (NCPU, ceil (X1*NTRP+ACPU) ) . In some embodiments, X1 may be a parameter related to number of CPUs for the second measurement report. In some embodiments, X1 may be reported based on UE capability indication. In some embodiments, X1 may be one or more of {1, 1.5, 2} . In some embodiments, X1∈ {1, 1.5, 2} .
[0292] In some embodiments, the first number of CPUs OCPU1 may be OCPU1=ceil (X2*NTRP) or OCPU1=min (NCPU, ceil (X2*NTRP) ) or OCPU1=X2*NTRP or OCPU1=min (NCPU, X2*NTRP) .
[0293] In some embodiments, X2 may be a parameter related to number of CPUs for the first measurement report (and / or the first measurement report is related to delay offset report (e.g., reportQuantity configured as “cjt-Dd” or for delay offset report only) ) . In some embodiments, X2 may be reported based on UE capability indication and / or configured by the network device (e.g., for delay offset reporting) . In some embodiments, 1≤X2≤8. In some embodiments, X2 may be one or more of {1, 2} or one or more of {1, 1.5, 2} or one or more of {1, 1.5, 2, 2.5, 3} or one or more of {1, 2, 3} . In some embodiments, X2∈ {1, 2} or X2∈ {1, 1.5, 2} or X2∈ {1, 1.5, 2, 2.5, 3} or X2∈ {1, 2, 3} .
[0294] In some embodiments, the first number of CPUs OCPU1 may be OCPU1=ceil (X3*NTRP) or OCPU1=min (NCPU, ceil (X3*NTRP) ) or OCPU1=X3*NTRP or OCPU1=min (NCPU, X3*NTRP) .
[0295] In some embodiments, X3 may be a parameter related to number of CPUs for the first measurement report (and / or the first measurement report is related to frequency offset report (e.g., reportQuantity configured as “cjt-F” or for frequency offset report only) ) . In some embodiments, X3 may be reported based on UE capability indication and / or configured by the network device (e.g., for frequency offset reporting) . In some embodiments, 1≤X3≤8. In some embodiments, X3 may be one or more of {1, 2} or one or more of {1, 1.5, 2} or one or more of {1, 1.5, 2, 2.5, 3} or one or more of {1, 2, 3} . In some embodiments, X3∈ {1, 2} or X3∈ {1, 1.5, 2} or X3∈ {1, 1.5, 2, 2.5, 3} or X3∈ {1, 2, 3} .
[0296] In some embodiments, the first number of CPUs OCPU1 may be OCPU1=ceil (2*X2*NTRP) or OCPU1=ceil (2*X3*NTRP) or OCPU1=min (NCPU, ceil (2*X2*NTRP) )or OCPU1=min (NCPU, ceil (2*X3*NTRP) ) or OCPU1=2*X2*NTRP or OCPU1=2*X3*NTRP or OCPU =min (NCPU, 2*X2*NTRP) or OCPU1=min (NCPU,2*X3*NTRP) or OCPU =ceil (X4*NTRP) or OCPU1=min (NCPU, ceil (X4*NTRP) ) or OCPU1=X4*NTRPor OCPU1=min (NCPU, X4*NTRP) .
[0297] In some embodiments, X2 may be same as X3. For example, X2=X3. In some embodiments, X2 and X3 may be reported by a same UE capability indication and / or may be configured with a same configuration.
[0298] In some embodiments, X4=2*X2 or X4=2*X3 or X4=2*min (X2, X3) or X4=2*max (X2, X3) or X4=X2+X3.
[0299] In some embodiments, X4 may be a parameter related to number of CPUs for the first measurement report (and / or the first measurement report is related to delay offset and frequency offset report (e.g., reportQuantity configured as “cjt-Dd-F” or for joint or combined delay offset report plus frequency offset report) ) . In some embodiments, X4 may be reported based on UE capability indication and / or configured by the network device (e.g., for delay offset plus frequency offset reporting) . In some embodiments, 1≤X4≤8. In some embodiments, X4 may be one or more of {1, 2} or one or more of {2, 4} or one or more of {1, 1.5, 2} or one or more of {1, 1.5, 2, 2.5, 3} or one or more of {1, 2, 3} or one or more of {2, 3, 4} . In some embodiments, X4∈ {1, 2} or X4∈ {2, 4} or X4∈ {1, 1.5, 2} or X4∈ {1, 1.5, 2, 2.5, 3} or X4∈ {1, 2, 3} or X4∈ {2, 3, 4} .
[0300] In some embodiments, there may be at least one capability timeline for the first measurement report and the second measurement report, for example, a first capability timeline and a second capability timeline. In some embodiments, one or more of: the number of CPUs OCPU, the first number of CPUs OCPU1, the second number of CPUs OCPU2, the value of X1, the value of X2, the value of X3, the value of X4, or the value of ACPU may be different for the first capability timeline and for the second capability timeline.
[0301] In some embodiments, a first timeline or a fourth time duration or a fourth pair of time durations (e.g., represented as (Z2, Z′2) ) may be (e.g., configured or determined and / or reported based on UE capability) related to the first measurement report, wherein the first timeline or the fourth time duration or the fourth pair of time durations (Z2, Z′2) may be in terms of number of symbols. In some embodiments, Z2 may be positive integer. In some embodiments, 40≤Z2≤1216. In some embodiments, Z2 may be one or more of: {40, 72, 141, 152, 608, 1216} . In some embodiments, Z′2 may be positive integer. In some embodiments, 37≤Z′2≤1120. In some embodiments, Z′2 may be one or more of: {37, 69, 140, 560, 1120} . In some embodiments, (Z2, Z′2) may be one or more of: (40, 37) in case of 15kHz, and / or (72, 69) in case of 30kHz, and / or (141, 140) in case of 60kHz, and / or (152, 140) in case of 120kHz, and / or (608, 560) in case of 240kHz, and / or (1216, 1120) in case of 480kHz. In some embodiments, Z2 may be one or more of: 40 in case of 15kHz, and / or 72 in case of 30kHz, and / or 141 in case of 60kHz, and / or 152 in case of 120kHz, and / or 608 in case of 240kHz, and / or 1216 in case of 480kHz. In some embodiments, Z′2 may be one or more of: 37 in case of 15kHz, and / or 69 in case of 30kHz, and / or 140 in case of 60kHz, and / or 140 in case of 120kHz, and / or 560 in case of 240kHz, and / or 1120 in case of 480kHz.
[0302] In some embodiments, a second timeline or a fifth time duration or a fifth pair of time durations (e.g., represented as (Z3, Z′3) ) may be (e.g., configured or determined and / or reported based on UE capability) related to the second measurement report, wherein the second timeline or the fifth time duration or the fifth pair of time durations (Z3, Z′3) may be in terms of number of symbols. In some embodiments, (Z3, Z′3) may be same as (Z2, Z′2) (e.g., in case of a first UE capability or the first capability timeline) . For example, Z3=Z2. For example, Z′3=Z′2. In some embodiments, (Z3, Z′3) may be (Z2+Z′2, 2*Z′2) (e.g., in case of a second UE capability or the second capability timeline) . For example, Z3=Z2+Z′2. For example, Z′3=2*Z′2.
[0303] In some embodiments, a third timeline or a sixth time duration or a sixth pair of time durations (e.g., represented as (Z4, Z′4) ) may be (e.g., configured or determined and / or reported based on UE capability) related to the second measurement report (e.g., when the second measurement report based on the pre-compensation with or related to the first measurement report) or related to the first measurement report and the second measurement report (e.g., in case of jointly triggered or indicated in a same DCI) , wherein the third timeline or the sixth time duration or the sixth pair of time durations (Z4, Z′4) may be in terms of number of symbols. In some embodiments, (Z4, Z′4) may be same as (Z3, Z′3) or same as (Z2, Z′2) (e.g., in case of a first UE capability or the first capability timeline) . For example, Z4=Z3 or Z4=Z2. For example, Z′4=Z′3 or Z′4=Z′2. In some embodiments, (Z4, Z′4) may be (Z3+Z′2, 2*Z′3) or (Z2+2*Z′2, 3*Z′2) or may be same as (Z3, Z′3) (e.g., in case of a second UE capability or the second capability timeline) . For example, Z4=Z2+2*Z′2 or Z4=Z3+Z′2 or Z4=Z3. For example, Z′4=3*Z′2 or Z′4=Z′3+Z′2 or Z′4=Z′3.
[0304] In some embodiments, in case of the first number of CPUs (e.g., OCPU1) is NCPU and / or in case of OCPU1+OCPU2>NCPU and / or in case of the first timeline (and / or the fourth time duration and / or at least one of the fourth pair of time durations (Z2, Z′2) ) is not satisfied and / or in case of the second timeline (and / or the fifth time duration and / or at least one of the fifth pair of time durations (Z3, Z′3) ) is not satisfied and / or in case of the third timeline (and / or the sixth time duration and / or at least one of the sixth pair of time durations (Z4, Z′4) ) is not satisfied, the second measurement report may not be based on the first measurement report and / or the second measurement report may not apply pre-compensation based on the first measurement report and / or the first measurement report may not be updated and / or the second measurement report may not be updated and / or the first measurement report may be dropped and / or the second measurement report may be dropped and / or the first measurement report and the second measurement report may not be updated as a whole and / or the first measurement report and the second measurement report may be dropped as a whole. For example, at least when the first measurement report and the second measurement report are jointly triggered or indicated in a same DCI.
[0305] In some embodiments, in case of a first measurement report (e.g., to be applied for a second measurement report) is dropped or is not updated, the second measurement report may not apply offset in or related to the first measurement report and / or the second measurement report may assume no pre-compensation based on or related to the first measurement report and / or the second measurement report may assume pre-compensation based on or related to a previous available first measurement before the first measurement report (which is dropped or not updated) .
[0306] In some embodiments, in case of a first measurement report (e.g., to be applied for a second measurement report) is dropped or is not updated and / or in case of a second measurement report is dropped or is not updated (e.g., when the first measurement report and the second measurement report are jointly triggered or indicated in a same DCI) , the first measurement report and the second measurement report may not be updated or may be dropped in a whole.
[0307] In some embodiments, in case of the first number of CPUs (e.g., OCPU1) is NCPUand / or in case of OCPU1+OCPU2>NCPU, the second measurement report may be based on the first measurement report and / or the second measurement report may apply pre-compensation based on the first measurement report, and the number of CPUs occupied by the second measurement report and / or the first measurement report may be NCPU. For example, at least when the first measurement report and the second measurement report are jointly triggered or indicated in a same DCI.
[0308] In some embodiments, if the first measurement report and the second measurement report are jointly triggered or indicated in a same DCI, the terminal device may need to report the value of X1 and / or the value of X2 and / or the value of X3 to be 1.
[0309] In some embodiments, the first number of CPUs may be occupied from a third timing. In some embodiments, the third timing may be the first symbol after the PDCCH (or the DCI) triggering the first measurement report (e.g., when the first measurement report is aperiodic and / or triggered by DCI or by PDCCH) or the third timing may be the first symbol of earliest one of each CSI-RS resource in the group of CSI-RS resource set (s) (and / or in the second group of CSI-RS resource set (s) ) (e.g., when the first measurement report is periodic and / or semi-persistent) .
[0310] In some embodiments, the second number of CPUs may be occupied from a fourth timing and / or a third timing or an earlier one of the third timing and the fourth timing. In some embodiments, the fourth timing may be the first symbol after the PDCCH (or the DCI) triggering the second measurement report (e.g., when the second measurement report is aperiodic and / or triggered by DCI or by PDCCH) or the third timing may be the first symbol of earliest one of each CSI-RS resource in the fifth set of CSI-RS resource (s) ) (e.g., when the first measurement report is periodic and / or semi-persistent) .
[0311] In some embodiments, the number of CPUs may be occupied from the fourth timing and / or the third timing or an earlier one of the third timing and the fourth timing. In some embodiments, the third timing and / or the fourth timing may be the first symbol after the PDCCH (or the DCI) triggering the first measurement report and the second measurement report (e.g., when the first measurement report and the second measurement report are aperiodic and / or jointly triggered by DCI or by PDCCH) .
[0312] In some embodiments, the second subset of the first number of CPUs occupied or required by the first measurement report (e.g., represented as RCUP1) and / or the second number of CPUs occupied or required by the second measurement report (e.g., represented as OCPU2) may be released after a second timing or may be occupied until the second timing. In some embodiments, after the second timing, remaining of the first number of CPUs or the second subset of the first number of CPUs (e.g., represented as RCPU1) and the second number of CPUs (e.g., represented as OCPU2) may be released. In some embodiments, the second timing may be the last symbol of the uplink resource carrying or with the second measurement report or the last symbol of transmission of the second measurement report.
[0313] In some embodiments, RCPU1 may be non-negative integer or positive integer. In some embodiments, 0≤RCPU1≤4 or 0≤RCPU1≤NTR or 0≤RCPU1≤2 or 1≤RCPU1≤4 or 1≤RCPU1≤NTRP or 1≤RCPU1≤2. In some embodiments, RCPU1 may be 0 or 1 or 2.
[0314] In some embodiments, the second measurement report may be based on compensation (or pre-compensation) with the measured offset or reported offset (e.g., the measured delay offset or the reported delay offset or the measured frequency offset or the reported phase offset) in the same reporting instance or in the same PUSCH or in the same PUCCH or in the same uplink resource (e.g., if a first DCI triggering or indicating the first measurement report (e.g., to be transmitted in a reporting instance or in a PUCCH resource or in a PUSCH resource) and a second DCI triggering or indicating the second measurement report (e.g., to be transmitted in the same reporting instance or in the same PUCCH resource or in the same PUSCH resource) (e.g., separately triggered and transmitted on same resource) .
[0315] In some embodiments, the terminal device may receive a first DCI triggering or indicating the first measurement report. In some embodiments, the terminal device may receive a first DCI triggering or indicating the first measurement report and the second measurement report. In some embodiments, the terminal device may receive a second DCI triggering or indicating the second measurement report. In some embodiments, the second measurement report may be based on compensation (or pre-compensation) with the latest measured offset or latest reported offset (e.g., delay offset or frequency offset or phase offset) whose measuring instance’s last symbol or whose at least one transmission occasion’s last symbol of each CSI-RS resource set in the group of CSI-RS resource set (s) and / or in the second group of CSI-RS resource set (s) or whose reporting instance’s last symbol if before the first symbol of DCI (e.g., the second DCI) triggering the second measurement report. For example, when the terminal device report capability on jointly triggering the first measurement report and the second measurement report and / or on separately triggering the first measurement report and / or when the terminal device is configured with jointly triggering the first measurement report and the second measurement report and / or is configured with separately triggering the first measurement report and second measurement report. In some embodiments, the first measurement report and the second measurement report may be transmitted in same uplink resource (e.g., same PUCCH or same PUSCH) or may be transmitted in different uplink resources (e.g., different PUCCH resource and / or different PUSCH resource) .
[0316] In some embodiments, the terminal device may report capability on separately (e.g., separately only) triggering the first measurement report and / or when the terminal device is configured with separately triggering the first measurement report and second measurement report. In some embodiments, in this case, the first measurement report and the second measurement report can only be triggered or indicated separately in different DCIs.
[0317] In some embodiments, the second number of CPUs occupied or required by the second measurement report (e.g., from fourth timing and / or until first timing, e.g., first timing may be earlier than or no later than the second timing) , OCPU2 may be OCPU2=ceil (X1* MTRP) or OCPU=ceil (X1*NTRP) or OCPU2=min (NCPU, ceil (X1*MTRP) ) or OCPU2=min (NCPU, ceil (X1*NTR) ) .In some embodiments, the second number of CPUs occupied or required by the second measurement report (e.g., from first timing and / or until second timing, e.g., first timing may be earlier than or no later than the second timing) , OCPU2 may be OCPU2=ceil (X1*MTRP)+ACPU or OCPU2=ceil (X1*NTRP)+ACPU or OCPU2=min (NCPU, (ceil (X1*MTRP)+ACPU) ) or OCPU2=min (NCPU, (ceil (X1*NTRP)+ACPU) )or OCPU2=min (NCPU, ceil (X1*MTRP+ACPU) ) or OCPU2=min (NCPU, ceil (X1*NTRP+ACPU) ) .
[0318] In some embodiments, from fourth timing and / or until first timing (e.g., first timing may be earlier than or no later than the second timing) , the second number of CPUs may be a third value, and from the first timing and / or until second timing, the second number of CPUs may be the third value plus ACPU or may be min (NCPU, (third value+ACPU) ) or may be min (NCPU-Ooccupied, (third value+ACPU) ) . For example, the third value plus ACPU is no larger than NCPU or no larger than NCPU-Ooccupied. In some embodiments, the third value may be a positive integer. In some embodiments, the third value may be OCPU2.
[0319] In some embodiments, the second measurement report may be based on compensation (or pre-compensation) with the latest reported offset (or latest measured offset) or based on compensation (or pre-compensation) with at least one reported offset (or at least one measured offset) (e.g., delay offset or frequency offset or phase offset) whose measuring instance’s last symbol or whose at least one transmission occasion’s last symbol of each CSI-RS resource set in the group of CSI-RS resource set (s) and / or in the second group of CSI-RS resource set (s) or whose reporting instance’s last symbol if before the first symbol of DCI (e.g. the second DCI) triggering the second measurement report. In some embodiments, the terminal device may be configured by the network device and / or the terminal device may report UE capability on whether the compensation is with the latest reported offset (or latest measured offset) or based on compensation (or pre-compensation) with at least one reported offset (or at least one measured offset) (e.g., delay offset or frequency offset or phase offset) .
[0320] In some embodiments, the terminal device 110 may receive at least one value for compensation (e.g., for delay offset and / or frequency offset and / or phase offset) from the network device 120, where the at least one value may comprise one or more of a value of delay offset, a value of frequency offset, a value of phase offset, an additional offset related to the reported delay offset, an additional offset related to the reported frequency offset, or an additional offset related to the phase offset. In some embodiments, the at least one value for compensation may be indicated based on a difference or an offset relative to at least one value reported in the first measurement report. In some embodiments, the value reported in the first measurement report comprises one or more of a value of delay offset, a value of frequency offset or a value of phase offset.
[0321] In some embodiments, the terminal device may report or may indicate (e.g., in the second measurement report) a request for first measurement report and / or a request for transmission of first measurement report and / or request for the group of CSI-RS resource set (s) and / or request for the second group of CSI-RS resource set (s) .
[0322] In some embodiments, the network device may indicate or transmit at least one indication (or third information) to the terminal device, wherein the at least one indication (or the third information) may comprise one or more of: at least one delay offset for compensation (e.g., for the second measurement report) , at least one frequency offset for compensation (e.g., for the second measurement report) , at least one phase offset for compensation, indication of whether compensation is based on the reported offset or reported value in the first measurement report or not, indication of an offset relative to the reported value or reported offset in the first measurement report, indication of an offset within the reported interval in the first measurement report, indication of whether compensation applied or not, indication of whether the reported offset or reported value is compensated or not, confirmation of compensation is based on the reported offset or reported value in the first measurement report, indication of lower bound or upper bound or average of the lower bound and the upper bound for compensation. In some embodiments, , the delay offset and / or frequency offset may be indicated based on an offset relative to the reported delay offset and / or frequency offset in the first measurement report. In some embodiments, the offset range may be one or more of: {-2*Y, -Y, 0, Y, 2*Y , ” out of range” } or one or more of {-k1*Y, - (k1-1) *Y, …, -Y, 0, Y, 2*Y, …, (k2-1) *Y, k2*Y, ” out of range” } . In some embodiments, Y may be the unit for delay offset and / or frequency offset report, e.g., or In some embodiments, Y may be based on the unit for delay offset and / or frequency offset report, e.g., or In some embodiments, O5 may be positive integer. In some embodiments, O5 may be one or more of: {1, 2, 3, 4, 5, 6, 7, 8} .
[0323] In some embodiments, the network device may indicate to the terminal device one or more of: an offset value corresponding to a lower bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as δi or or or or 0) , a measured offset value (e.g., a measured delay offset value and / or a measurement frequency offset value) ) corresponding to the CSI-RS resource set which is associated with the CSI-RS resource; For example, the measured offset value may be a real or final measured offset value. For another example, the measured offset value may fall into the interval corresponding to the reported offset corresponding to the CSI-RS resource set in the first measurement report. For another example, the measured offset value may be a real or final measured delay offset value. For another example, the measured offset value may be a real or final measured frequency offset value. For another example, the measured offset value may be different from the lower bound or upper bound of the interval corresponding to the reported offset corresponding to the CSI-RS resource set in the first measurement report; 0 or no pre-compensation if the corresponding interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource is the last interval or the interval (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) ; AD if the corresponding interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource is the last interval or the interval (AD, ∞] or [AD, ∞] or (AD, ∞) or [AD, ∞) ; an offset value corresponding to an upper bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as δi+1 or or or ) , or an offset value corresponding to an average of the lower bound and the upper bound of a corresponding reported interval corresponding to a CSI-RS resource set which is associated with the CSI-RS resource (e.g., the offset value may be represented as or or or ) .
[0324] More examples of are discussed for a better understanding. In some embodiments, if the value of delay offset corresponding to the one CSI-RS resource set is less than or equal to a first threshold (e.g., the first threshold may be represented as T1) (e.g., if the value of delay offset corresponding to the CSI-RS resource set is not “out of range” or not the last codepoint or the delay offset not fallen into interval or or [AD, ∞] or [AD, ∞) ” ) and / or if the value of gn is 1 (or 0) (e.g., inside of the first range) , the first offset corresponding to the CSI-RS resource (which is associated with the one CSI-RS resource set) may be within a first range (e.g., represented as R1) , and / or the value of O4 may be T*O3 (e.g., 2*the value of the fifth parameter (e.g., numberOfO3) ) . (For example, the value of , O4may be 2 or 8) and / or the first offset corresponding to the CSI-RS resource (which is associated with the one CSI-RS resource set) may be assumed to be 0 (e.g., no need to report) .
[0325] In some embodiments, the first range R1 may be represented as [-A1, B1] (e.g., {-A1, -A1+1, …-1, 0, 1, 2…B1 -1, B1} ) , or {0, 1, …B1, O3*N3-A1, O3*N3-A1+1, …, O3*N3-1} or {0, 1, …B1, O4*N3-A1, O3*N3-A1+1, …, O4*N3-1} . In some embodiments, the first range R1 may be represented as [0, B1] (e.g., {0 , 1, 2…B1-1, B1} ) , or [0, O3*N3-1] or [0, O3*N4-1]. In some embodiments, the first range R1 may be represented as [-A1, 0] (e.g., {-A1, -A1+1, …-1, 0} ) , or [O3*N3-A1, O3*N3-1] (e.g., {O3*N3-A1, O3* N3-A1+1, …, O3*N3-1} ) or [O4*N3-A1, O4*N3-1] (e.g., {O4*N3-A1, O4* N3-A1+1, …, O4*N3-1} ) . In some embodiments, O3 may be the fifth parameter, which is a positive integer. In some embodiments, O3 may be 1 or 4. In some embodiments, O4 may be the sixth parameter, which is a positive integer. In some embodiments, O4 may be 1 or 2 or 4 or 6 or 8. In some embodiments, O4=T*O3.
[0326] In some embodiments, A1 may be non-negative integer. For example, 1≤A1≤O3*N3-1 For another example, 1≤A1≤O4*N3-1. For another example, 1≤A1≤min (6, floor (O3*N3 / 2) ) . For another example, 1≤A1≤min (8, floor (O3*N4 / 2) ) . In some embodiments, B1 may be non-negative integer. For example, 1≤B1≤O3*N3-1. For another example, 1≤B1≤O4*N3-1. For another example, 1≤B1≤min (6, floor (O3*N3 / 2) ) . For another example, 1≤B1≤min (8, floor (O4*N3 / 2) ) . In some embodiments, B1=A1 or B1=A1-1 or B1= A1+1.
[0327] In this way after CJT calibration, at least the first offset (e.g., FD basis offsets) among CSI-RS resources (e.g., among TRPs) are reduced, with the scheme, the overhead and UE complexity can be reduced.
[0328] In some embodiments, if the value of the delay offset corresponding to the CSI-RS resource set is larger than the first threshold and / or if the value of gn is 0 (or 1) (e.g., outside of the first range) , the first offset corresponding to the first CSI-RS resource may be within a second range (e.g., represented as R2) .
[0329] In some embodiments, the second range R2 may be represented as [0, O3*N3-1] (e.g., {0, 1, …O3*N3-1} ) .
[0330] In some embodiments, the second range R2 may be represented as [-C1, D1] (e.g., {-C1, -C1+1, …-1, 0 , 1, 2…D1 -1, D1} ) , or {0, 1, …D1, O3*N3-C1, O3*N3-C1+1, …, O3*N3-1} .
[0331] In some embodiments, the second range R2 may be represented as [0, D1] (e.g., {0, 1, 2…D1-1, D1} ) .
[0332] In some embodiments, the second range R2 may be represented as [-C1, 0] (e.g., {-C1, -C1+1, …-1, 0} ) , or [O3*N3-C1, O3*N3-1] (e.g., {O3*N3-C1, O3*N3-C1+1, …, O3*N3-1} ) . In some embodiments, C1 may be non-negative integer. For example, 1≤C1≤O3*N3-1. For another example, 1≤C1≤min (9, floor (O3*N3 / 2) ) . In some embodiments, D1 may be non-negative integer. For example, 1≤D1≤O3*N3-1 For another example, 1≤D1≤min (9, floor (O3*N3 / 2) ) . In some emobdiments, D1=C1 or D1=C1-1 or D1=C1+1. In some embodiments, the second range may be larger than the first range. In some embodiments, C1>A1 and / or D1>B1.
[0333] In some embodiments, if the value of the delay offset corresponding to the CSI-RS resource set is larger than the first threshold and / or if the value of gn is 0 (or 1) (e.g., outside of the first range) , the CSI-RS resource (which is associated with the CSI-RS resource set) may not be indicated / selected in the second measurement report, and / or the codebook indicators corresponding to the CSI-RS resource may not be comprised in the second measurement report. For example, even if CSI-RS resource (e.g., TRP) selection is not enabled.
[0334] In some embodiments, if the value of the delay offset corresponding to the CSI-RS resource set is larger than the first threshold and / or if the value of gn is 0 (or 1) (e.g., outside of the first range) , the sixth parameter may be same as the value of O3 or O4=O3 or T=1.
[0335] In some embodiments, if the value of the delay offset corresponding to the one CSI-RS resource set is less than and / or equal to a fourth threshold and if the value of gn is 0 (or 1) (e.g., outside of the first range) , the CSI-RS resource which is associated with the CSI-RS resource set may not be indicated or may not be selected (e.g., in the N0 selected CSI-RS resources) in the second measurement report, and / or the codebook indicators corresponding to the CSI-RS resource which is associated with the CSI-RS resource set may not be comprised in the second measurement report. For example, even if TRP selection is not enabled. That is because it may be caused a scenario where the delay spread for the corresponding TRP is very large, and thus may not be suitable for CJT.
[0336] In some embodiments, if the value of the first parameter (e.g., value of AD) is within a first subset of the candidate values for the first parameter, and / or the value of the second parameter (e.g., value of MD) is within a first subset of the candidate values for the second parameter and / or if the value of AD / ( MD-1) is less than or equal to a third threshold, the first range and / or the second range in embodiments of this disclosure may be applied, otherwise, a third range R3 (e.g., with A2 replacing A1 and / or B2 replacing B1) may replace the first range R1 and / or a fourth range R4 (e.g., with C2 replacing C1 and / or D2 replacing D1) may replace the second range R2 and / or a second threshold may replace the first threshold, wherein the third range may be less than the first range (e.g., A2≤A1 and / or B2≤B1) and / or the fourth range may be less than the second range (e.g., C2≤C1 and / or D2≤D1) .
[0337] In some embodiments, the candidate values for the first parameter (e.g., represented as AD) may be 0.5CP or CP or AS or 0.5*AS. In some embodiments, the first subset of the candidate values for the first parameter may be CP or AS, and the second subset of the candidate values for the second parameter may be 0.5CP or 0.5*AS.
[0338] In some embodiments, the candidate values for the second parameter (e.g., represented as MD) may be 32, 64, 128, 256. In some embodiments, the first subset of the candidate values for the second parameter may be one or more of {32, 64, 128} , and the second subset of the candidate values for the second parameter may be one or more of {64, 128, 256} .
[0339] In some embodiments, the third threshold may be CP / 63 or CP / 127 or 0.5CP / 63 or 0.5CP / 127 or AS / 63 or AS / 127 or 0.5*AS / 63 or 0.5*AS / 127.
[0340] In some embodiments, in case of different values of size of subband and / or values of number of PMI in one subband (e.g., represented as R) , the range and / or threshold may be different. In some embodiments, R may be 1 or 2.
[0341] In this way, if the resolution of the delay offset is finer, the range and / or the payload size for the first offset is smaller.
[0342] In some embodiments, the at least one configuration comprises at least one of the following:
[0343] - an indication of whether the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, such as, whether the second measurement report based on pre-compensation with the first measurement report,
[0344] - an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, such as, whether the first measurement report and the second measurement report is triggered by a same DCI or not,
[0345] - an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, such as, whether the first measurement report and the second measurement report is reported / transmitted within a time duration or on a same resource (e.g., PUSCH resource) or on a same slot (or a number of symbols) or not. In some embodiments, the time duration may be N slots or symbols or sub-slots;
[0346] - an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource,
[0347] - an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported,
[0348] - an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, for example, whether pre-compensation based on the result in the first measurement report is applied in time domain or in frequency domain,
[0349] - an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit. In some embodiments, it may be whether pre-compensation based on the result in the first measurement report is applied in unit of subband corresponding to PMI in the second measurement report (e.g., subband size for CQI / R) or in unit of one resource block (RB) , or the frequency domain unit (e.g., represented in number of RBs or subbands) for the pre-compensation, for example, in case of the first measurement report comprising delay offset report. In some embodiments, it may be whether pre-compensation based on the result in the first measurement report is applied in unit of one slot or one symbol or in unit of d slots (e.g., configured for doppler CSI) , or the time domain unit (e.g., represented in number of slots or symbols) for the pre-compensation, for example, in case of the first measurement report comprising frequency offset report.
[0350] Optionally, in some embodiments, the terminal device 110 may transmit (205-1) capability information to the network device 120, and the network device 120 may receive (205-2) . In particular, the capability information may comprise at least one of the following:
[0351] - an indication of whether the terminal device 110 supports transmitting the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report,
[0352] - an indication of whether the terminal device 110 supports to be triggered with the first measurement report and the second measurement report in a same message or in a same DCI.
[0353] - an indication of a maximum or minimum time offset between transmitting the first measurement report and the second measurement report,
[0354] - an indication of whether the terminal device 110 supports transmitting the first measurement report and the second measurement report on a same uplink resource,
[0355] - an indication of whether the terminal device 110 supports transmitting the first measurement report and the second measurement report jointly and / or separately,
[0356] - an indication of whether the terminal device 110 supports applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report in the time domain or in the frequency domain,
[0357] - an indication of a resolution supported by the terminal device 110 for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0358] FIG. 3 illustrates a flowchart of a communication method 300 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 300 will be described from the perspective of the terminal device 110 in FIG. 1A and / or FIG. 1B.
[0359] At block 310, the terminal device receives, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources.
[0360] At block 320, the terminal device transmits, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0361] In some example embodiments, the first report configuration and the second are associated with each other by one or more of: comprising a first identity associated with the first report configuration in the second report configuration; comprising a second identity associated with the second report configuration in the first report configuration; or comprising the first identity and the second identity in a third report configuration.
[0362] In some example embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is assumed or expected to be the same as a second number of RS resources in the set of RS resources.
[0363] In some example embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is no less than two, and a second number of RS resources in the set of RS resources is no less than two.
[0364] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set and / or the set of RS resources comprises one RS resource, and the terminal device may ignore the first report configuration, disable determining the first measurement report, disable transmitting the first measurement report, or determine the second measurement report without assuming pre-compensation with the first measurement report.
[0365] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set and / or the set of RS resources comprises one RS resource, and the terminal device may transmit the first measurement report comprising a frequency / doppler offset based on measurement results on the group of RS resource sets (or the group of CSI-RS resource set (s) ) ; and transmit the second measurement report based on measurement results on the set of RS resources by assuming pre-compensation with the frequency / doppler offset in the first measurement report.
[0366] In some example embodiments, a one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources is based on one of the following: a configured order of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and an increasing order of RS resource index of the set of RS resources, or association among the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources configured by the network device.
[0367] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprising a reference RS resource set, and wherein an RS resource of the set of RS resources which is associated with the reference RS resource set is determined to be the reference RS resource in the second measurement report.
[0368] In some example embodiments, the second report configuration comprises a set of selected RS resources, and an RS resource of the set of the selected RS resources which is associated with a lowest offset value is determined to be the reference RS resource.
[0369] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises a reference RS resource set, and the set of RS resources comprises the reference RS resource, and wherein in a case that the reference RS resource is not associated with the reference RS resource set or in a case that the reference RS resource is not selected in the second measurement report, pre-compensation for the second measurement report is based on one or more of: a second offset for pre-compensation for the reference RS resource in the set of RS resources, wherein the second offset is determined based on an offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource; or a third offset for pre-compensation for an RS resource, wherein the third offset is determined based on a difference value between an offset reported in the first measurement report corresponding to an RS resource set associated with the RS resource and the offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource.
[0370] In some example embodiments, an offset reported in the first measurement report indicates an interval, and the terminal device may perform a pre-compensation for an RS resource in the set of RS resources with one or more of the following: an offset value corresponding to a lower bound of a corresponding reported interval associated with the RS resource, an offset value corresponding to an upper bound of a corresponding reported interval associated with the RS resource, or an offset value corresponding to an average of the lower bound and the upper bound.
[0371] In some example embodiments, in a case that the upper boundary of a corresponding reported interval associated with an RS resource is infinite, the terminal device may disable pre-compensation for the RS resource or perform a pre-compensation for the RS resource with the lower bound of the reported interval or perform a pre-compensation for the RS resource with value 0.
[0372] In some example embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is less than or equal to a first threshold, the value of delay / frequency / phase offset is inside of the predefined range, a summation of a value of delay / frequency / phase offset of the first CSI-RS resource set and a spread is inside of the predefined range, the maximum value for a delay / frequency / phase offset report is smaller than or equal to a second threshold, the resolution or unit for a delay / frequency / phase offset report is larger than or equal to a third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is smaller than or equal to a fourth threshold, a first offset in the second measurement report corresponding to a first RS resource associated with the first RS resource set is within a first range or assumed to be 0, and / or the parameter for indication of the first offset is based on the configured value of the parameter multiplied with 2 or 3 or 4.
[0373] In some example embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is larger than or equal to the first threshold, the value of delay / frequency / phase offset is outside of the predefined range, an addition of a value of delay / frequency / phase offset of a first CSI-RS resource set and a spread is outside of the predefined range, the maximum value for a delay / frequency / phase offset report is larger than or equal to the second threshold, the resolution or unit for a delay / frequency / phase offset report is smaller than or equal to the third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is larger than or equal to the fourth threshold, a first offset in the second measurement report corresponding to the first RS resource associated with the first RS resource set is within a second range and / or the first RS resource is not selected in the second measurement report and / or the parameter for indication of the first offset is based on the configured value of the parameter, wherein the configured value is 1 or 4.
[0374] In some example embodiments, a size of bitmap corresponding to RS resources reported in the second measurement report is determined based on a number of RS resource sets with a value of delay / frequency / phase offset smaller than or equal to the first threshold in the first measurement report.
[0375] In some example embodiments, in a case of the set of RS resources are semi-persistent or periodic, at least one offset value to be compensated for the second measurement report is at least one latest reported / measured offset whose instance’s last symbol is before at least one RS resource transmission occasion for each of the set of RS resources no later than the channel state information (CSI) reference resource and / or no later than the first symbol of dynamic control information (DCI) triggering the second measurement report.
[0376] In some example embodiments, the second measurement report comprises an indication for requesting a further measurement report for delay offset reporting.
[0377] In some example embodiments, at least one channel state information (CSI) processing unit (CPU) occupied by the first measurement report is released until the last symbol of an uplink resource transmitting the second measurement report.
[0378] In some example embodiments, the terminal device may receive, from the network device, at least one further value for compensation, the at least one further value comprising one or more of a further value of delay offset, a further value of frequency offset or a further value of phase offset, wherein at least one further value for compensation is indicated based on a difference relative to at least one value reported in the first measurement report, and the value reported in the first measurement report comprises one or more of a value of delay offset, a value of frequency offset or a value of phase offset.
[0379] In some example embodiments, the at least one configuration comprises at least one of the following: an indication of whether the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource, an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported, an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0380] In some example embodiments, the terminal device may transmit, to the network device, capability information comprising at least one of the following: an indication of whether the terminal device supports transmitting the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the terminal device supports to be triggered with the first measurement report and the second measurement report in a same message or in a same DCI, an indication of a maximum or minimum time offset between transmitting the first measurement report and the second measurement report, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report on a same uplink resource, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report jointly and / or separately, an indication of whether the terminal device supports applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report in the time domain or in the frequency domain, an indication of a resolution supported by the terminal device for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0381] FIG. 4 illustrates a flowchart of a communication method 400 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the network device 120 in FIG. 1A and / or FIG. 1B.
[0382] At block 410, the network device transmits, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources.
[0383] At block 420, receive, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0384] In some example embodiments, the first report configuration and the second are associated with each other by one or more of: comprising a first identity associated with the first report configuration in the second report configuration; comprising a second identity associated with the second report configuration in the first report configuration; or comprising the first identity and the second identity in a third report configuration.
[0385] In some example embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is assumed or expected to be the same as a second number of RS resources in the set of RS resources.
[0386] In some example embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is no less than two, and a second number of RS resources in the set of RS resources is no less than two.
[0387] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set and / or the set of RS resources comprises one RS resource, and the network device may receive, from the terminal device, the first measurement report comprising a frequency / doppler offset based on measurement results on the group of RS resource sets (or the group of CSI-RS resource set (s) ) ; and receive, from the terminal device, the second measurement report based on measurement results on the set of RS resources by assuming pre-compensation with the frequency / doppler offset in the first measurement report.
[0388] In some example embodiments, a one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources is based on one of the following: a configured order of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and an increasing order of RS resource index of the set of RS resources, or association among the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources configured by the network device.
[0389] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprising a reference RS resource set, and wherein an RS resource of the set of RS resources which is associated with the reference RS resource set is determined to be the reference RS resource in the second measurement report.
[0390] In some example embodiments, the second report configuration comprises a set of selected RS resources, and an RS resource of the set of the selected RS resources which is associated with a lowest offset value is determined to be the reference RS resource.
[0391] In some example embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises a reference RS resource set, and the set of RS resources comprises the reference RS resource, and wherein in a case that the reference RS resource is not associated with the reference RS resource set or in a case that the reference RS resource is not selected in the second measurement report, pre-compensation for the second measurement report is based on one or more of: a second offset for pre-compensation for the reference RS resource in the set of RS resources, wherein the second offset is determined based on an offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource; or a third offset for pre-compensation for an RS resource, wherein the third offset is determined based on a difference value between an offset reported in the first measurement report corresponding to an RS resource set associated with the RS resource and the offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource.
[0392] In some example embodiments, an offset reported in the first measurement report indicates an interval, and the network device may perform a pre-compensation for an RS resource in the set of RS resources with one or more of the following: an offset value corresponding to a lower bound of a corresponding reported interval associated with the RS resource, an offset value corresponding to an upper bound of a corresponding reported interval associated with the RS resource, or an offset value corresponding to an average of the lower bound and the upper bound.
[0393] In some example embodiments, in a case that the upper boundary of a corresponding reported interval associated with an RS resource is infinite, the network device may disable pre-compensation for the RS resource or perform a pre-compensation for the RS resource with the lower bound of the reported interval or perform a pre-compensation for the RS resource with value 0.
[0394] In some example embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is less than or equal to a first threshold, the value of delay / frequency / phase offset is inside of the predefined range, a summation of a value of delay / frequency / phase offset of the first CSI-RS resource set and a spread is inside of the predefined range, the maximum value for a delay / frequency / phase offset report is smaller than or equal to a second threshold, the resolution or unit for a delay / frequency / phase offset report is larger than or equal to a third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is smaller than or equal to a fourth threshold, a first offset in the second measurement report corresponding to a first RS resource associated with the first RS resource set is within a first range or assumed to be 0, and / or the parameter for indication of the first offset is based on the configured value of the parameter multiplied with 2 or 3 or 4.
[0395] In some example embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is larger than or equal to the first threshold, the value of delay / frequency / phase offset is outside of the predefined range, an addition of a value of delay / frequency / phase offset of a first CSI-RS resource set and a spread is outside of the predefined range, the maximum value for a delay / frequency / phase offset report is larger than or equal to the second threshold, the resolution or unit for a delay / frequency / phase offset report is smaller than or equal to the third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is larger than or equal to the fourth threshold, a first offset in the second measurement report corresponding to the first RS resource associated with the first RS resource set is within a second range and / or the first RS resource is not selected in the second measurement report and / or the parameter for indication of the first offset is based on the configured value of the parameter, wherein the configured value is 1 or 4.
[0396] In some example embodiments, a size of bitmap corresponding to RS resources reported in the second measurement report is determined based on a number of RS resource sets with a value of delay / frequency / phase offset smaller than or equal to the first threshold in the first measurement report.
[0397] In some example embodiments, in a case of the set of RS resources are semi-persistent or periodic, at least one offset value to be compensated for the second measurement report is at least one latest reported / measured offset whose instance’s last symbol is before at least one RS resource transmission occasion for each of the set of RS resources no later than the channel state information (CSI) reference resource and / or no later than the first symbol of dynamic control information (DCI) triggering the second measurement report.
[0398] In some example embodiments, the second measurement report comprises an indication for requesting a further measurement report for delay offset reporting.
[0399] In some example embodiments, at least one channel state information (CSI) processing unit (CPU) occupied by the first measurement report is released until the last symbol of an uplink resource transmitting the second measurement report.
[0400] In some example embodiments, the network device may transmit, to the terminal device, at least one further value for compensation, the at least one further value comprising one or more of a further value of delay offset, a further value of frequency offset or a further value of phase offset, wherein at least one further value for compensation is indicated based on a difference relative to at least one value reported in the first measurement report, and the value reported in the first measurement report comprises one or more of a value of delay offset, a value of frequency offset or a value of phase offset.
[0401] In some example embodiments, the at least one configuration comprises at least one of the following: an indication of whether the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource, an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported, an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0402] In some example embodiments, the network device may receive, from the terminal device, capability information comprising at least one of the following: an indication of whether the terminal device supports transmitting the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the terminal device supports to be triggered with the first measurement report and the second measurement report in a same message or in a same DCI, an indication of a maximum or minimum time offset between transmitting the first measurement report and the second measurement report, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report on a same uplink resource, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report jointly and / or separately, an indication of whether the terminal device supports applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report in the time domain or in the frequency domain, an indication of a resolution supported by the terminal device for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0403] FIG. 5 is a simplified block diagram of a device 500 that is suitable for implementing embodiments of the present disclosure. The device 500 can be considered as a further example implementation of any of the devices as shown in FIG. 1A and / or FIG. 1B. Accordingly, the device 500 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
[0404] As shown, the device 500 includes a processor 510, a memory 520 coupled to the processor 510, a suitable transceiver 540 coupled to the processor 510, and a communication interface coupled to the transceiver 540. The memory 520 stores at least a part of a program 530. The transceiver 540 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 540 may include at least one of a transmitter 542 and a receiver 544. The transmitter 542 and the receiver 544 may be functional modules or physical entities. The transceiver 540 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.
[0405] The program 530 is assumed to include program instructions that, when executed by the associated processor 510, enable the device 500 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGS. 1 to 4. The embodiments herein may be implemented by computer software executable by the processor 510 of the device 500, or by hardware, or by a combination of software and hardware. The processor 510 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 510 and memory 520 may form processing means 550 adapted to implement various embodiments of the present disclosure.
[0406] The memory 520 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 520 is shown in the device 500, there may be several physically distinct memory modules in the device 500. The processor 510 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 500 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.
[0407] According to embodiments of the present disclosure, a terminal device comprising a circuitry is provided. The circuitry is configured to: receive, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and transmit, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the terminal device as discussed above.
[0408] According to embodiments of the present disclosure, a network device comprising a circuitry is provided. The circuitry is configured to: transmit, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and receive, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the network device as discussed above.
[0409] 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.
[0410] According to embodiments of the present disclosure, a terminal apparatus is provided. The terminal apparatus comprises means for receiving, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and means for transmitting, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report. In some embodiments, the first apparatus may comprise means for performing the respective operations of the method 300. In some example embodiments, the first apparatus may further comprise means for performing other operations in some example embodiments of the method 300. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0411] According to embodiments of the present disclosure, a network apparatus is provided. The network apparatus comprises means for transmitting, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and means for receiving, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report. In some embodiments, the second apparatus may comprise means for performing the respective operations of the method 400. In some example embodiments, the second apparatus may further comprise means for performing other operations in some example embodiments of the method 400. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0412] In summary, embodiments of the present disclosure provide the following aspects.
[0413] In an aspect, it is proposed a terminal device comprising: a processor configured to cause the terminal device to: receive, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and transmit, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0414] In some embodiments, the at least one configuration comprises at least one of the following: an indication of whether the second measurement report based on pre- compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource, an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported, an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0415] In some embodiments, the terminal device transmit, to the network device, capability information comprising at least one of the following: an indication of whether the terminal device supports transmitting the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the terminal device supports to be triggered with the first measurement report and the second measurement report in a same message or in a same DCI, an indication of a maximum or minimum time offset between transmitting the first measurement report and the second measurement report, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report on a same uplink resource, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report jointly and / or separately, an indication of whether the terminal device supports applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report in the time domain or in the frequency domain, an indication of a resolution supported by the terminal device for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0416] In an aspect, it is proposed a network device comprising: a processor configured to cause the network device to: transmit, to a terminal device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; and receive, from the terminal device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information, wherein the first information comprises at least one of the following: a value of delay offset, a value of frequency offset, a value of phase offset, an indication of whether the value of delay offset is inside or outside of a predefined range, an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range, a range or maximum value for a delay offset report, a range or maximum value for frequency offset report, a range or maximum value for phase offset report, a resolution or unit of a delay offset report, a resolution or unit of a frequency offset report, or a resolution or unit of a phase offset report, and the second information comprises at least one of the following: an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources, an indication of a range of the first offset, an indication of one or multiple sets of second vectors corresponding to the set of RS resources, a parameter for indication of the first offset, or a bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.
[0417] In some embodiments, the first report configuration and the second are associated with each other by one or more of: comprising a first identity associated with the first report configuration in the second report configuration; comprising a second identity associated with the second report configuration in the first report configuration; or comprising the first identity and the second identity in a third report configuration.
[0418] In some embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is assumed or expected to be the same as a second number of RS resources in the set of RS resources.
[0419] In some embodiments, a first number of RS resource sets in the group of RS resource sets (or the group of CSI-RS resource set (s) ) is no less than two, and a second number of RS resources in the set of RS resources is no less than two.
[0420] In some embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises one RS resource set and / or the set of RS resources comprises one RS resource, and the network device may receive, from the terminal device, the first measurement report comprising a frequency / doppler offset based on measurement results on the group of RS resource sets (or the group of CSI-RS resource set (s) ) ; and receive, from the terminal device, the second measurement report based on measurement results on the set of RS resources by assuming pre-compensation with the frequency / doppler offset in the first measurement report.
[0421] In some embodiments, a one-to-one mapping between the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources is based on one of the following: a configured order of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and a configured order of the set of RS resources, an increasing order of RS resource set index of the group of RS resource sets (or the group of CSI-RS resource set (s) ) and an increasing order of RS resource index of the set of RS resources, or association among the group of RS resource sets (or the group of CSI-RS resource set (s) ) and the set of RS resources configured by the network device.
[0422] In some embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprising a reference RS resource set, and wherein an RS resource of the set of RS resources which is associated with the reference RS resource set is determined to be the reference RS resource in the second measurement report.
[0423] In some embodiments, the second report configuration comprises a set of selected RS resources, and an RS resource of the set of the selected RS resources which is associated with a lowest offset value is determined to be the reference RS resource.
[0424] In some embodiments, the group of RS resource sets (or the group of CSI-RS resource set (s) ) comprises a reference RS resource set, and the set of RS resources comprises the reference RS resource, and wherein in a case that the reference RS resource is not associated with the reference RS resource set or in a case that the reference RS resource is not selected in the second measurement report, pre-compensation for the second measurement report is based on one or more of: a second offset for pre-compensation for the reference RS resource in the set of RS resources, wherein the second offset is determined based on an offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource; or a third offset for pre-compensation for an RS resource, wherein the third offset is determined based on a difference value between an offset reported in the first measurement report corresponding to an RS resource set associated with the RS resource and the offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource.
[0425] In some embodiments, an offset reported in the first measurement report indicates an interval, and the network device may perform a pre-compensation for an RS resource in the set of RS resources with one or more of the following: an offset value corresponding to a lower bound of a corresponding reported interval associated with the RS resource, an offset value corresponding to an upper bound of a corresponding reported interval associated with the RS resource, or an offset value corresponding to an average of the lower bound and the upper bound.
[0426] In some embodiments, in a case that the upper boundary of a corresponding reported interval associated with an RS resource is infinite, the network device may disable pre-compensation for the RS resource or perform a pre-compensation for the RS resource with the lower bound of the reported interval or perform a pre-compensation for the RS resource with value 0.
[0427] In some embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is less than or equal to a first threshold, the value of delay / frequency / phase offset is inside of the predefined range, a summation of a value of delay / frequency / phase offset of the first CSI-RS resource set and a spread is inside of the predefined range, the maximum value for a delay / frequency / phase offset report is smaller than or equal to a second threshold, the resolution or unit for a delay / frequency / phase offset report is larger than or equal to a third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is smaller than or equal to a fourth threshold, a first offset in the second measurement report corresponding to a first RS resource associated with the first RS resource set is within a first range or assumed to be 0, and / or the parameter for indication of the first offset is based on the configured value of the parameter multiplied with 2 or 3 or 4.
[0428] In some embodiments, if at least one of the following: a value of delay / frequency / phase offset of a first CSI-RS resource set is larger than or equal to the first threshold, the value of delay / frequency / phase offset is outside of the predefined range, an addition of a value of delay / frequency / phase offset of a first CSI-RS resource set and a spread is outside of the predefined range, the maximum value for a delay / frequency / phase offset report is larger than or equal to the second threshold, the resolution or unit for a delay / frequency / phase offset report is smaller than or equal to the third threshold, or the value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is larger than or equal to the fourth threshold, a first offset in the second measurement report corresponding to the first RS resource associated with the first RS resource set is within a second range and / or the first RS resource is not selected in the second measurement report and / or the parameter for indication of the first offset is based on the configured value of the parameter, wherein the configured value is 1 or 4.
[0429] In some embodiments, a size of bitmap corresponding to RS resources reported in the second measurement report is determined based on a number of RS resource sets with a value of delay / frequency / phase offset smaller than or equal to the first threshold in the first measurement report.
[0430] In some embodiments, in a case of the set of RS resources are semi-persistent or periodic, at least one offset value to be compensated for the second measurement report is at least one latest reported / measured offset whose instance’s last symbol is before at least one RS resource transmission occasion for each of the set of RS resources no later than the channel state information (CSI) reference resource and / or no later than the first symbol of dynamic control information (DCI) triggering the second measurement report.
[0431] In some embodiments, the second measurement report comprises an indication for requesting a further measurement report for delay offset reporting.
[0432] In some embodiments, at least one channel state information (CSI) processing unit (CPU) occupied by the first measurement report is released until the last symbol of an uplink resource transmitting the second measurement report.
[0433] In some embodiments, the network device may transmit, to the terminal device, at least one further value for compensation, the at least one further value comprising one or more of a further value of delay offset, a further value of frequency offset or a further value of phase offset, wherein at least one further value for compensation is indicated based on a difference relative to at least one value reported in the first measurement report, and the value reported in the first measurement report comprises one or more of a value of delay offset, a value of frequency offset or a value of phase offset.
[0434] In some embodiments, the at least one configuration comprises at least one of the following: an indication of whether the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource, an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported, an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0435] In some embodiments, the network device may receive, from the terminal device, capability information comprising at least one of the following: an indication of whether the terminal device supports transmitting the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the terminal device supports to be triggered with the first measurement report and the second measurement report in a same message or in a same DCI, an indication of a maximum or minimum time offset between transmitting the first measurement report and the second measurement report, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report on a same uplink resource, an indication of whether the terminal device supports transmitting the first measurement report and the second measurement report jointly and / or separately, an indication of whether the terminal device supports applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report in the time domain or in the frequency domain, an indication of a resolution supported by the terminal device for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
[0436] In an aspect, a terminal device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the terminal device discussed above.
[0437] In an aspect, a network device comprises: at least one processor; and at least one memory coupled to the at least one processor and storing instructions thereon, the instructions, when executed by the at least one processor, causing the device to perform the method implemented by the network device discussed above.
[0438] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0439] In an aspect, a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0440] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the terminal device discussed above.
[0441] In an aspect, a computer program comprising instructions, the instructions, when executed on at least one processor, causing the at least one processor to perform the method implemented by the network device discussed above.
[0442] 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.
[0443] 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.
[0444] 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.
[0445] 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.
[0446] 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.
[0447] 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
A terminal device comprising:a processor configured to cause the terminal device to:receive, from a network device, a first report configuration of a first measurement report and a second report configuration of a second measurement report, wherein the first report configuration is associated with a group of reference signal (RS) resource sets and the second report configuration is associated with a set of RS resources; andtransmit, to the network device, the first measurement report comprising first information and the second measurement report comprising second information, wherein a payload size or a range of the second information is based at least in part on the first information,wherein the first information comprises at least one of the following:a value of delay offset,a value of frequency offset,a value of phase offset,an indication of whether the value of delay offset is inside or outside of a predefined range,an indication of whether a summation of the delay offset value and a spread is inside or outside of a predefined range,a range or maximum value for a delay offset report,a range or maximum value for frequency offset report,a range or maximum value for phase offset report,a resolution or unit of a delay offset report,a resolution or unit of a frequency offset report, ora resolution or unit of a phase offset report,and the second information comprises at least one of the following:an indication of a first offset associated with codebook indicator between a reference signal (RS) resource and a reference RS resource, wherein the RS resource and the reference RS resource are comprised in the set of RS resources,an indication of a range of the first offset,an indication of one or multiple sets of second vectors corresponding to the set of RS resources,a parameter for indication of the first offset, ora bitmap corresponding to a number of RS resources from the set of RS resources reported in the second measurement report.The terminal device of claim 1, wherein the first report configuration and the second are associated with each other by one or more of:comprising a first identity associated with the first report configuration in the second report configuration;comprising a second identity associated with the second report configuration in the first report configuration; orcomprising the first identity and the second identity in a third report configuration.The terminal device of claim 1, wherein a first number of RS resource sets in the group of RS resource sets is assumed or expected to be the same as a second number of RS resources in the set of RS resources.The terminal device of claim 1, wherein, a first number of RS resource sets in the group of RS resource sets is no less than two, and a second number of RS resources in the set of RS resources is no less than two.The terminal device of claim 1, wherein the group of RS resource sets comprises one RS resource set and / or the set of RS resources comprises one RS resource, and wherein the terminal device is further caused to:ignore the first report configuration,disable determining the first measurement report,disable transmitting the first measurement report, ordetermine the second measurement report without assuming pre-compensation with the first measurement report.The terminal device of claim 1, wherein the group of RS resource sets comprises one RS resource set and / or the set of RS resources comprises one RS resource, and wherein the terminal device is further caused to:transmit the first measurement report comprising a frequency / doppler offset based on measurement results on the group of RS resource sets; andtransmit the second measurement report based on measurement results on the set of RS resources by assuming pre-compensation with the frequency / doppler offset in the first measurement report.The terminal device of claim 1, wherein a one-to-one mapping between the group of RS resource sets and the set of RS resources is based on one of the following:a configured order of the group of RS resource sets and a configured order of the set of RS resources,an increasing order of RS resource set index of the group of RS resource sets and a configured order of the set of RS resources,an increasing order of RS resource set index of the group of RS resource sets and an increasing order of RS resource index of the set of RS resources, orassociation among the group of RS resource sets and the set of RS resources configured by the network device.The terminal device of claim 1, wherein the group of RS resource sets comprises a reference RS resource set, andwherein an RS resource of the set of RS resources which is associated with the reference RS resource set is determined to be the reference RS resource in the second measurement report.The terminal device of claim 1, wherein the second report configuration comprises a set of selected RS resources, and an RS resource of the set of the selected RS resources which is associated with a lowest offset value is determined to be the reference RS resource.The terminal device of claim 1, wherein the group of RS resource sets comprises a reference RS resource set, and the set of RS resources comprises the reference RS resource, andwherein in a case that the reference RS resource is not associated with the reference RS resource set or in a case that the reference RS resource is not selected in the second measurement report, pre-compensation for the second measurement report is based on one or more of:a second offset for pre-compensation for the reference RS resource in the set of RS resources, wherein the second offset is determined based on an offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource; ora third offset for pre-compensation for an RS resource, wherein the third offset is determined based on a difference value between an offset reported in the first measurement report corresponding to an RS resource set associated with the RS resource and the offset reported in the first measurement report corresponding to an RS resource set associated with the reference RS resource.The terminal device of claim 1, wherein an offset reported in the first measurement report indicates an interval, and wherein the terminal device is further caused to:perform a pre-compensation for an RS resource in the set of RS resources with one or more of the following: an offset value corresponding to a lower bound of a corresponding reported interval associated with the RS resource, an offset value corresponding to an upper bound of a corresponding reported interval associated with the RS resource, or an offset value corresponding to an average of the lower bound and the upper bound.The terminal device of claim 1, wherein the terminal device is further caused to:in a case that the upper boundary of a corresponding reported interval associated with an RS resource is infinite, disable pre-compensation for the RS resource or perform a pre-compensation for the RS resource with the lower bound of the reported interval or perform a pre-compensation for the RS resource with value 0.The terminal device of claim 1, wherein if at least one of the following:a value of delay / frequency / phase offset of a first CSI-RS resource set is less than or equal to a first threshold,the value of delay / frequency / phase offset is inside of the predefined range,a summation of a value of delay / frequency / phase offset of the first CSI-RS resource set and a spread is inside of the predefined range,the maximum value for a delay / frequency / phase offset report is smaller than or equal to a second threshold,the resolution or unit for a delay / frequency / phase offset report is larger than or equal to a third threshold, orthe value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is smaller than or equal to a fourth threshold,a first offset in the second measurement report corresponding to a first RS resource associated with the first RS resource set is within a first range or assumed to be 0, and / or the parameter for indication of the first offset is based on the configured value of the parameter multiplied with 2 or 3 or 4.The terminal device of claim 1, wherein if at least one of the following:a value of delay / frequency / phase offset of a first CSI-RS resource set is larger than or equal to the first threshold,the value of delay / frequency / phase offset is outside of the predefined range,an addition of a value of delay / frequency / phase offset of a first CSI-RS resource set and a spread is outside of the predefined range,the maximum value for a delay / frequency / phase offset report is larger than or equal to the second threshold,the resolution or unit for a delay / frequency / phase offset report is smaller than or equal to the third threshold, orthe value of ratio between the maximum value for the delay offset report and the resolution or unit for the delay offset report is larger than or equal to the fourth threshold,a first offset in the second measurement report corresponding to the first RS resource associated with the first RS resource set is within a second range and / or the first RS resource is not selected in the second measurement report and / or the parameter for indication of the first offset is based on the configured value of the parameter, wherein the configured value is 1 or 4.The terminal device of claim 1, wherein a size of bitmap corresponding to RS resources reported in the second measurement report is determined based on a number of RS resource sets with a value of delay / frequency / phase offset smaller than or equal to the first threshold in the first measurement report.The terminal device of claim 1, wherein in a case of the set of RS resources are semi-persistent or periodic, at least one offset value to be compensated for the second measurement report is at least one latest reported / measured offset whose instance’s last symbol is before at least one RS resource transmission occasion for each of the set of RS resources no later than the channel state information (CSI) reference resource and / or no later than the first symbol of dynamic control information (DCI) triggering the second measurement report.The terminal device of claim 1, wherein the second measurement report comprises an indication for requesting a further measurement report for delay offset reporting.The terminal device of claim 1, wherein at least one channel state information (CSI) processing unit (CPU) occupied by the first measurement report is released until the last symbol of an uplink resource transmitting the second measurement report.The terminal device of claim 1, wherein the terminal device is further caused to:receive, from the network device, at least one further value for compensation, the at least one further value comprising one or more of a further value of delay offset, a further value of frequency offset or a further value of phase offset, wherein the at least one further value for compensation is indicated based on a difference relative to at least one value reported in the first measurement report, and the value reported in the first measurement report comprises one or more of a value of delay offset, a value of frequency offset or a value of phase offset.The terminal device of claim 1, wherein the at least one configuration comprises at least one of the following: an indication of whether the second measurement report based on pre-compensation with the reported delay offset and / or frequency offset and / or phase offset comprised in the first measurement report, an indication of whether the first measurement report and the second measurement report support to be triggered by a same message or a same DCI, an indication of whether a time offset between transmitting the first measurement report and the second measurement report is smaller than or equal to a fifth threshold, an indication of whether the first measurement report and the second measurement report are to be transmitted on a same uplink resource, an indication of whether the first measurement report and the second measurement report are jointly reported or separately reported, an indication of whether pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report is applied in time domain or in frequency domain, an indication of a resolution for applying pre-compensation based on the reported delay offset and / or frequency offset and / or phase offset in the first measurement report, the resolution comprising a frequency domain unit and / or a time domain unit.
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