WO2025076791A1

WO2025076791A1 - Devices and methods for communication

Info

Publication number: WO2025076791A1
Application number: PCT/CN2023/124370
Authority: WO
Inventors: Yukai GAO; Peng Guan; Gang Wang
Original assignee: NEC Corp
Current assignee: NEC Corp
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2025-04-17
Anticipated expiration: 2026-04-12

Abstract

Embodiments of the present disclosure provide a solution for measurement report. In a solution, a first device receives, from a second device, configuration information for a measurement report; and transmits, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

Description

DEVICES AND METHODS FOR COMMUNICATION

FIELDS

Example embodiments of the present disclosure generally relate to the field of communication techniques and in particular, to devices and methods for measurement report.

BACKGROUND

Technology of multiple input multiple output (MIMO) has been widely used in current wireless communication system, where a large number of antenna elements are used by a network device for communicating with a terminal device for both sub-6GHz and over-6GHz frequency bands.

In the MIMO system, the terminal device and the network device may communicate with each other via more than one beam. Thus, beam management (BM) procedure is a central function in wireless communication and more enhancements on BM are expected to be studied.

SUMMARY

In general, embodiments of the present disclosure provide a solution for measurement report.

In a first aspect, there is provided a first device comprising: a processor configured to cause the first device to: receive, from a second device, configuration information for a measurement report; and transmit, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In a second aspect, there is provided a first device comprising: a processor configured to cause the first device to: receive, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; receive, based on the antenna information, the at least one first reference signal from the second device; and transmit, to the second device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or at least one vector, wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: the antenna information, or a combination of at least one the first reference signal on the plurality of transmission occasions.

In a third aspect, there is provided a first device comprising: a processor configured to cause the first device to: transmit, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In a fourth aspect, there is provided a second device comprising: a processor configured to cause the second device to: transmit, to a first device, configuration information for a measurement report; and receive, from the first device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In a fifth aspect, there is provided a second device comprising: a processor configured to cause the second device to: transmit, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; transmit, based on the antenna information, the at least one first reference signal to the first device; and receive, from the first device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or a vector, wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: the antenna information, or a combination of the at least one first reference signal on the plurality of transmission occasions.

In a sixth aspect, there is provided a second device comprising: a processor configured to cause the second device to: receive, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In a seventh aspect, there is provided a communication method performed by a first device. The method comprises: receiving, from a second device, configuration information for a measurement report; and transmitting, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In an eighth aspect, there is provided a communication method performed by a first device. The method comprises: receiving, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; receiving, based on the antenna information, the at least one first reference signal from the second device; and transmitting, to the second device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or at least one vector, wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: the antenna information, or a combination of at least one the first reference signal on the plurality of transmission occasions.

In a ninth aspect, there is provided a communication method performed by a first device. The method comprises: transmitting, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and performing at least one of the following: transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In a tenth aspect, there is provided a communication method performed by a second device. The method comprises: transmitting, to a first device, configuration information for a measurement report; and receiving, from the first device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In an eleventh aspect, there is provided a communication method performed by a second device. The method comprises: transmitting, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; transmitting, based on the antenna information, the at least one first reference signal to the first device; and receiving, from the first device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or a vector, wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: the antenna information, or a combination of the at least one first reference signal on the plurality of transmission occasions.

In a twelfth aspect, there is provided a communication method performed by a second device. The method comprises: receiving, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and performing at least one of the following: receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In a thirteenth 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 seventh, eighth, ninth, tenth, eleventh, or twelfth aspect.

Other features of the present disclosure will become easily comprehensible through the following description.

BRIEF DESCRIPTION OF THE DRAWINGS

Through the more detailed description of some example 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:

FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;

FIG. 2 illustrates a signaling flow of communication in accordance with some embodiments of the present disclosure;

FIG. 3 illustrates a block of information comprised in the measurement report;

FIG. 4 illustrates a block of information comprised in the measurement report;

FIG. 5 illustrates a block of information comprised in the measurement report;

FIG. 6 illustrates a signaling flow of communication in accordance with some embodiments of the present disclosure;

FIG. 7 illustrates a signaling flow of communication in accordance with some embodiments of the present disclosure;

FIG. 8 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure;

FIG. 9 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure;

FIG. 10 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure;

FIG. 11 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure;

FIG. 12 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure;

FIG. 13 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure; and

FIG. 14 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.

Throughout the drawings, the same or similar reference numerals represent the same or similar element.

DETAILED DESCRIPTION

Principle of the present disclosure will now be described with reference to some example 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 limitation as to the scope of the disclosure. Embodiments described herein can be implemented in various manners other than the ones described below.

In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.

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, devices 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.

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.

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.

The terminal or the network device may work on several frequency ranges, e.g., FR1 (e.g., 450 MHz to 6000 MHz) , FR2 (e.g., 24.25GHz to 52.6GHz) , frequency band larger than 100 GHz 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.

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. 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.

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.

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.

As used herein, the term “resource, ” “transmission resource, ” “uplink resource, ” or “downlink resource” may refer to any resource for performing a communication, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like. In the following, unless explicitly stated, a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.

As used herein, measurement results may refer to a layer 1-reference signal received power (L1-RSRP) , a layer 3 (L3) -RSRP, an L1-signal to interference and noise ratio (L1-SINR) , an L3-SINR, an L1/L3 received signal strength indicator (RSSI) , an L1/L3 reference signal received quality (RSRQ) , and so on. The present disclosure is not limited in this regard.

As used herein, terms “signaling” , “message” , “configuration” , “request” , “response” , “information” and “signal” , “packet” may be used interchangeably.

As used herein, the terms “node” , “device” , “apparatus” “function” and “function entity” may be used interchangeably.

As used herein, the terms “precoder” , “precoding” , “precoding matrix” , “beam” , “beamforming” , “vector” , “basis” , “spatial-related vector” , “spatial-related basis” , “spatial-related basis vector” , “codebook” , “UL codebook” , “spatial domain vector” , “spatial domain-related information” , “SD-related information” , “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” , “transmission configuration indication state (TCI state) ” , “DL TCI state” , “UL TCI state” , “joint TCI state” , “transmission configuration indicator” , “quasi co-location (QCL) ” , “quasi-co-location” , “QCL parameter” , “QCL assumption” , “QCL relationship” and “spatial relation” may be used interchangeably.

As used herein, the terms “vector” , “vectors” , “bases” and “basis” may be used interchangeably. As used herein, the terms “L1-RSRP” , “RSRP” , “L1-SINR” and “SINR” may be used interchangeably.

As used herein, the terms “functionality” and “usage” may be used interchangeably.

As used herein, the terms “subset of information” , “subset of measurement” , “subset of measurement report” , “part of measurement report” , “report” , “measurement” and “measurement report” may be used interchangeably.

As used herein, the terms “spatial-related vector” , “a SRS port” , “a CSI-RS port” , “an RS port” , “a SRS resource” , “a CSI-RS resource” , “an RS resource” , “an antenna port” , “first beam” , “beam” , “first bases” , “first basis vector” , “spatial domain/SD basis vector” , “spatial domain/SD vectors” , “spatial domain/SD basis” , “spatial domain/SD bases” , “spatial domain/SD basis vectors corresponding to a TRP index” , “spatial domain/SD vectors corresponding to a TRP index” , “spatial domain/SD basis corresponding to a TRP index” , “spatial domain/SD bases corresponding to a TRP index” , “first basis corresponding to a TRP index” , “spatial domain-related information” , “SD-related information” , “spatial relation information” , “spatial relation info” , “an azimuth angle of departure” , “an angle of departure” , “AoD” , “a zenith angle of departure” , “ZoD” , “an angle of a directional angle” , “an azimuth angle of arrival” , “an angle of arrival” , “AoA” , “a zenith angle of departure” , “ZoA” and “first basis” may be used interchangeably.

As used herein, the terms “index” , “indicator” , “indication” , “field” , “bit field” and “bitmap” may be used interchangeably.

As used herein, the terms “bit size” , “size of bits” , “number of bits” , “size of field” , “bitwidth” and “field size” may be used interchangeably.

As used herein, the terms “element of indication field” , “parameter” and “indication” may be used interchangeably. As used herein, the terms “associated with” , “corresponding to” , “correspond to” and “comprise” may be used interchangeably.

Further, UE-initiated beam management procedure including UE-initiated beam reporting/switch is expected to be further enhanced to reduce overhead/latency through UE-initiated/event-driven beam management.

Example environment

FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented. The communication environment 100 includes a first device 110 and a second device 120.

In some example embodiments, the first device 110 may be comprised in a terminal apparatus/access network apparatus/core network apparatus and the second device 120 may be comprised in a terminal apparatus/access network apparatus/core network apparatus.

In the following, for the purpose of illustration, some example embodiments are described with the first device 110 operating as a terminal device and the second device 120 operating as an access network device. However, in some example embodiments, operations described in connection with a terminal device may be implemented at a network device or other device, and operations described in connection with a network device may be implemented at a terminal device or other device.

In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, a link from the second device 120 to the first device 110 is referred to as a downlink (DL) , while a link from the first device 110 to the second device 120 is referred to as an uplink (UL) . In DL, the second device 120 is a transmitting (TX) apparatus (or a transmitter) and the first device 110 is a receiving (RX) apparatus (or a receiver) . In UL, the first device 110 is a TX apparatus (or a transmitter) and the second device 120 is a RX apparatus (or a receiver) .

Further, MIMO is supported by at least one of the first device 110 and the second device 120. As illustrated in FIG. 1, the first device 110 may use at least one of: beams 130-1, 130-2, 130-3 (individually or collectively referred to as a beam 150) to communicate with the second device 120. Accordingly, the second device 120 may use at least one of: beams 140-1, 140-2, 140-3 (individually or collectively referred to as a beam 140) to communicate with the first device 110.

In some embodiments, the first device 110 may transmit measurement report (s) to the second device 120. By communicating the measurement report (s) , beam management may be enabled.

For L1-RSRP reporting, if the higher layer parameter nrofReportedRS in CSI-ReportConfig is configured to be one, the reported L1-RSRP value is defined by a 7-bit value in the range [-140, -44] dBm with 1dB step size, if the higher layer parameter nrofReportedRS is configured to be larger than one, or if the higher layer parameter groupBasedBeamReporting is configured as 'enabled', or if the higher layer parameter groupBasedBeamReporting-r17 is configured, the UE shall use differential L1-RSRP based reporting, where the largest measured value of L1-RSRP is quantized to a 7-bit value in the range [-140, -44] dBm with 1dB step size, and the differential L1-RSRP is quantized to a 4-bit value. The differential L1-RSRP value is computed with 2 dB step size with a reference to the largest measured L1-RSRP value which is part of the same L1-RSRP reporting instance. The mapping between the reported L1-RSRP value and the measured quantity is described in below Table 1. In some embodiments, the field size or the bitwidth for CSI-RS resource indicator (CRI) may be wherein may be number of CSI-RS resources in the corresponding CSI-RS resource set for measurement or for reporting “cri-RSRP” or for reporting “cri-RSRP-Index” . In some embodiments, the field size or the bitwidth for synchronization signal/physical broadcast channel (SS/PBCH) block (SSB) resource indicator (SSBRI) may be wherein may be number of SS/PBCH block resources in the corresponding resource set for measurement or for reporting “ssb-Index-RSRP” or for reporting “ssb-Index-RSRP-Index” . In some embodiments, the field size or the bitwidth for RSRP may be 7. In some embodiments, the field size or the bitwidth for differential RSRP may be 4. In some embodiments, the field size or the bitwidth for CapabilityIndex may be 2.

Table 1

For L1-SINR reporting, if the higher layer parameter nrofReportedRS in CSI-ReportConfig is configured to be one, the reported L1-SINR value is defined by a 7-bit value in the range [-23, 40] dB with 0.5 dB step size, and if the higher layer parameter nrofReportedRS is configured to be larger than one, or if the higher layer parameter groupBasedBeamReporting is configured as 'enabled', the UE shall use differential L1-SINR based reporting, where the largest measured value of L1-SINR is quantized to a 7-bit value in the range [-23, 40] dB with 0.5 dB step size, and the differential L1-SINR is quantized to a 4-bit value. The differential L1-SINR is computed with 1 dB step size with a reference to the largest measured L1-SINR value which is part of the same L1-SINR reporting instance. When NZP CSI-RS is configured for channel measurement and/or interference measurement, the reported L1-SINR values should not be compensated by the power offset (s) given by higher layer parameter powerControOffsetSS or powerControlOffset. The mapping between the reported L1-RSRP value and the measured quantity is described in below Table 2. In some embodiments, the field size or the bitwidth for CSI-RS resource indicator (CRI) may bewherein may be number of CSI-RS resources in the corresponding CSI-RS resource set for measurement or for reporting “cri-SINR” or for reporting “cri-SINR-Index” . In some embodiments, the field size or the bitwidth for synchronization signal/physical broadcast channel (SS/PBCH) block (SSB) resource indicator (SSBRI) may bewhereinmay be number of SS/PBCH block resources in the corresponding resource set for measurement or for reporting “ssb-Index-SINR” or for reporting “ssb-Index-SINR-Index” . In some embodiments, the field size or the bitwidth for RSRP may be 7. In some embodiments, the field size or the bitwidth for differential RSRP may be 4. In some embodiments, the field size or the bitwidth for CapabilityIndex may be 2.

Table 2

It is to be understood that the number of devices and their connections shown in FIG. 1 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.

In some embodiments, the first device 110 and the second 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 physical downlink shared channel (PDSCH) and a physical broadcast channel (PBCH) . Of course, any other suitable channels are also feasible.

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.

Example processes

Reference is made to FIG. 2 to FIG. 7. For the purposes of discussion, FIG. 2 to FIG. 7 will be discussed with reference to FIG. 1, for example, by using the first device 110 and the second device 120.

It is to be understood that the operations at the first device 110 and the second device 120 should be coordinated. In other words, the second device 120 and the first device 110 should have common understanding about configurations, parameters and so on. Such common understanding may be implemented by any suitable interactions between the second device 120 and the first device 110 or both the second device 120 and the first device 110 applying the same rule/policy. In the following, although some operations are described from a perspective of the first device 110, it is to be understood that the corresponding operations should be performed by the second device 120. Similarly, although some operations are described from a perspective of the second device 120, it is to be understood that the corresponding operations should be performed by the first device 110. Merely for brevity, some of the same or similar contents are omitted here.

In addition, in the following description, some interactions are performed among the first device 110 and the second device 120 (such as, exchanging configuration (s) , measurement report (s) and so on) . It is to be understood that the interactions may be implemented either in one single signaling/message/configuration or multiple signaling/messages/configurations, including system information, radio resource control (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.

Processes for beams combination

In a perspective of technical implementation, a terminal device may measure at least one reference signal (or SSB) with wide/narrow beam, and may report amplitude/phase coefficients corresponding to a set of adjacent beams to form a beam that matches the channel better, and thus may also reduce overhead to refine narrow beams. In the following, processes about how to combine multiple adjacent beams to form an optimized beam will be discussed.

Reference is now made to FIG. 2, which illustrates a signaling flow 200 of communication in accordance with some embodiments of the present disclosure.

For ease of discussion, the first device 110 may be described as a terminal device and the second device 120 may be described as a network device.

In the example of FIG. 2, a resource may correspond to one of the following:

● a channel state information (CSI) -reference signal (RS) resource,

● a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or

● a spatial-related vector.

In operation, the first device 110 may receive 210 configuration information for a measurement report from the second device 120.

Then, the first device 110 may transmit 220 the measurement report to the second device 120, where the measurement report may comprise the following:

● an indication of a first resource,

● a first group of amplitude coefficients associated with a first group of resources, and

● a first group of phase coefficients associated with the first group of resource.

In the present discourse, the first group of resources may be determined based on the first resource.

In some embodiments, resources in the first group of resources and the first resource are adjacent in spatial domain.

With the above information, the second device 120 may combine a set of adjacent beams to form a combined beam (the combined beam may match the channel better) , and thus signalling overhead for subsequent beam management may be reduced.

In some embodiments, the first device 110 (e.g., terminal device) may receive at least one configuration (i.e., configuration information) for channel measurement/report from a second device 120 (e.g., network device) . Then, the first device 110 may determine/transmit an indication of a first CSI-RS resource (or a first SSB or a first vector or a first spatial-related vector) , and at least one of: a first group of amplitude coefficients (or a first group of RSRP/SINR values) corresponding to a first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) and a first group of phase coefficients corresponding to the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) in a measurement report based on the at least one configuration, wherein the first group of CSI-RS resources (or SSB resources or or vectors or spatial-related vectors) may be determined based on the first CSI-RS resource (or the first SSB or the first vector or the first spatial-related vector) .

In some embodiments, the number of resources in the first group of resources may be defined as a default number, or configured by the second device 120, or reported by the first device 110. In some embodiments, the resources may be at least one of: CSI-RS resources or SSB resources or vectors or spatial-related vectors. In some embodiments, resource may be at least one of: CSI-RS resource or SSB resource or vector or spatial-related vector.

In some embodiments, the number of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) in the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be configured by the second device 120 or reported from the first device 110 to the second device 120, or may be defined as a default value.

In some embodiments, the number of resources in the first group of resources RS resources may be at least one of {1, 2, 3, 4, 5, 6, 7, 8} . In some embodiments, the number of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) in the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be G, wherein G may be positive integer. In some embodiments, G∈{1, 2, 3, 4, 5, 6, 7, 8} .

In some embodiments, the first resource (e.g. the first CSI-RS resource, the first SSB resource, the first vector or the first spatial-related vector) and the at least part of the resources in the first group of resources may be combined with at least one the following:

● amplitude information (or amplitude coefficient) associated with the first resource and amplitude coefficients associated with the at least part of the resources,

● RSRP (or SINR) associated with the first resource and RSRP (or SINR) associated with the at least part of the resources, or

● phase information (or phase coefficient) associated with the first resource and phase coefficients associated with the at least part of the resources.

In some embodiments, the first resource and the at least part of the resources may correspond to or associated with a same polarization direction or a same group of CSI-RS port index (es) . For example, a first group of CSI-RS resources may be at least one of: {0} , {0, 1} , {0, 1, 2, 3} , {0, 1, 2, 3, 4, 5} , {0, 1, 2, 3, 4, 5, 6, 7} , {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11} , {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} . For example, a second group of CSI-RS resources may be at least one of: {1} , {2, 3} , {4, 5, 6, 7} , {6, 7, 8, 9, 10, 11} , {8, 9, 10, 11, 12, 13, 14, 15} , {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23} , {16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31} .

In some embodiments, the first CSI-RS resource (or first SSB resource or first vector or first spatial-related vector) and the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be combined with corresponding amplitude/phase coefficient (e.g., per same polarization or per group of CSI-RS port index (es) ) .

In some embodiments, the number of amplitude coefficients in the first group of amplitude coefficients and/or the number of the phase coefficients in the first group of phase coefficients may be G. In some embodiments, each amplitude phase or phase coefficient in the first group of amplitude coefficients or phase coefficients may correspond to one CSI-RS resource (or one SSB or one vector or spatial-related vector) in the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) .

In the following, more details about the configuration information will be discussed.

In some embodiments, the configuration information may indicate a plurality of resources and/or adjacency relationships in spatial domain between resources in the plurality of resources.

In some embodiments, the plurality of resources may be associated with actual transmissions.

Alternatively, in some embodiments, the plurality of resources may be determined based on a codebook-related configuration.

Specifically, in some embodiments, the configuration information may comprise a configuration of a plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) for the measurement report. In some embodiments, the number of resources in the plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be K, K may be positive integer. For example, 1<=K<=64.

In some embodiments, the plurality of CSI-RS resources may be CSI-RS resources in one or more CSI-RS resource sets.

In some embodiments, the plurality of SSB resources may be determined based on actual transmitted SSBs determined according to ssb-PositionsInBurst or number of SSB resources in an SSB resource set (e.g. csi-SSB-ResourceSet) .

In some embodiments, the number of resources in the plurality of resources K may be the number of actual transmitted SSBs determined according to ssb-PositionsInBurst or the number of SSBs in the csi-SSB-ResourceSet.

In some embodiments, the plurality of spatial-related vectors may be determined based on the parameters for codebookConfig (N₁ and/or N₂ and/or O₁ and/or O₂) , for example, K = N₁ *N₂ or K= N₁ *O₁ or K= N₁ *N₂*O₁*O₂ or K= N₂*O₂.

In some embodiments, the first device 110 may receive antenna port configuration from the second device 120. In some embodiments, a value of the first parameter of antenna port configuration may be represented as N₁. For example, N₁ may be a positive integer. For example, N₁ may be one of {2, 3, 4, 6, 8, 12, 16, 24, 32, 64} . In some embodiments, a value of the second parameter of antenna port configuration may be represented as N₂. For example, N₂ may be a positive integer. For example, N₂ may be one of {1, 2, 3, 4, 8, 12, 16, 24, 32} . In some embodiments, the first parameter of antenna port configuration and the second parameter of antenna port configuration may be configured in one higher layer parameter.

In some embodiments, the number of antenna ports in one antenna port group or for one CSI-RS resource may be determined based on the first parameter of antenna port configuration and a second parameter of antenna port configuration. In some embodiments, the number of antenna ports in one antenna port group or for one CSI-RS resource may be P=N₁·N₂·2. In some embodiments, P may be positive integer. For example, P may be at least one of {2, 4, 8, 12, 16, 24, 32, 48, 64, 72, 96, 128} .

In some embodiments, there may be a parameter “O₁” , and “O₁” may represent a first oversampling value (For example, a first discrete fourier transform (DFT) oversampling value) in the first dimension. For example, “O₁” may be one of {1, 2, 4} . For another example, “O₁” may be 2 or 4. In some embodiments, there may be a parameter “O₂” , and “O₂” may represent a second oversampling value (For example, a second DFT oversampling value) in the second dimension. For example, “O₂” may be one of {1, 2, 4} . For another example, “O₂” may be 2 or 4.

In some embodiments, one configuration of (N₁, N₂) may correspond to one configuration of (O₁, O₂) . In some embodiments, one configuration of (O₁, O₂) may correspond to one configuration of (N₁, N₂) .

In some embodiments, the configuration information may indicate at least one of the following:

● a first quantization size of one of the amplitude coefficients, or

● a second quantization size of one of the phase coefficients,

● a first indication that the measurement report is associated with a first dimension,

● a second indication that the measurement report is associated with a second dimension, or

● a third indication that the measurement report is associated with the first and second dimensions.

In some embodiments, the configuration information may further comprise at least one of:

● the field size (or quantization size, e.g., first quantization size) for the amplitude coefficient,

● the field size (or quantization size) for the phase coefficient (e.g., second quantization size) ,

● the measurement report (e.g., the spatial-related vector) in first dimension (e.g., horizontal, e.g., first indication) ,

● the measurement report (e.g., the spatial-related vector) in second dimension (e.g., vertical, e.g., second indication) , and

● the measurement report (e.g., the spatial-related vector) jointly in first dimension and second dimension (e.g., third indication) .

In some embodiments, the field size for the amplitude coefficient may be 1 or 2 or 3 or 4 bits. In some embodiments, quantization for the amplitude coefficient may be with 1 dB or 1.5dB or 2dB or 3dB step size. For example, that is because the power difference between beams/vectors to be combined is not very large.

In some embodiments, the field size for the phase coefficient may be based on the number of elements or antennas or antenna ports (e.g. for forming a beam) , In some embodiments, the field size for the phase coefficient may be 2 or 3 or 4 or 5 bits. In some embodiments, the resolution of phase coefficient (i.e., a quantization size) may be based on the capability of second device 120. In some embodiments, the phase coefficient may be e^j*2*π*q/Q. In some embodiments, Q may be positive integer. For example, Q may be 2 or 4 or 8 or 16 or 32. In some embodiments, q may be non-negative integer. For example, 0≤q≤Q-1.

In the following, the association between the first resource and the first group of resources will be discussed as below.

In some embodiments, the first group of resources may be determined based on the first resource and at least one of the following:

● a pre-defined rule,

● the number of resources in the first group of resources,

● a first value of a first parameter of antenna port configuration in a first dimension, or

● a second value of a second parameter of antenna port configuration in a second dimension.

In some embodiments, the determination of the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be predetermined/configured based on the value of the number of resources comprise in the first group of resources G.

In some embodiments, the first resource may be associated with a first index value. In some embodiments, the first resource and the first group of resources may be associated with one dimension, wherein the dimension may be the first dimension or the second dimension. In some embodiments, there may be at least one of the following:

● if the first group of resources comprise a second resource,

a second index value of the second resource is the first index value plus a first offset or minus a second offset,

● if the first group of resources comprise a second resource and a third resource,

a second index value of the second resource is the first index value plus a first offset, and a third index value of the third resource is the first index value minus a second offset,

● if the first group of resources comprise a second resource, a third resource and a fourth resource,

a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, and a fourth index value of the fourth resource is the first index value plus a third offset or minus a fourth offset, or

● if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource,

a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, a fourth index value of the fourth resource is the first index value plus a third offset, and a fifth index value of the fifth resource is the first index value minus a fourth offset.

In some embodiments, the first offset and/or the second offset and/or the third offset and/or the fourth offset may be at least one of {1, 2 , 3, 4, 6, 8} . In some embodiments, the first offset and/or the second offset may be 1 or 2. In some embodiments, the third offset and/or the fourth offset may be 2 or 3. In some embodiments, the first offset and/or the second offset and/or the third offset and/or the fourth offset may be at least one of O₁*A, O₂*A, O₁*O₂*A, B*A and K/C. In some embodiments, A may be a positive integer. For example, 1≤A≤4. In some embodiments, B may be a positive integer. For example, 1≤B≤4. In some embodiments, C may be a positive integer. For example, 1≤C≤8. In some embodiments, K may be positive integer. For example, 1<=K<=64.

In some embodiments, in case of G=1, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or vectors or spatial-related vectors) with index₀ +1 or index₀ -1, where the first resource may be associated with an index₀. Refer to FIG. 3 for details, where FIG. 3 illustrates a block 300 of information comprised in the measurement report.

In some embodiments, the measurement report may further comprise an indication of the CSI-RS resource (or SSB or vector or spatial-related vector) in the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) . For example, indication of index₀ +1 or index₀ -1, where the first resource may be associated with an index₀.

In some embodiments, in case of G=2, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or spatial-related vectors) with index₀ +1 and index₀ -1, where the first resource may be associated with an index_0.

In some embodiments, in case of G=3, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or spatial-related vectors) with index₀ +1, index₀ -1 and index₀ +2 (or index₀-2) , where the first resource may be associated with an index₀.

In some embodiments, in case of G=4, the first group of CSI-RS resources (or SSB resources or vector or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or spatial-related vectors) with index₀ +1, index₀ -1 and index₀ +2 and index₀-2, where the first resource may be associated with an index_0.

In addition, in some embodiments, the second device 120 may indicate whether the CSI-RS resources or the SSB or the vectors or the spatial-related vectors in the plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) are adjacent or not (in the first dimension and/or the second dimension) .

In some embodiments, the second device 120 may indicate whether the first one resource (or first one SSB or first one vector) and the last one resource (or the last one SSB or the last one vector) in the plurality of CSI-RS resources (or SSB resources or vectors) are adjacent or not (in the first dimension and/or the second dimension) .

For better understanding the above embodiments, reference may be made to FIG. 4, where FIG. 4 illustrates a block 400 of information comprised in the measurement report.

In some embodiments, the first resource may be associated with a first index value. In some embodiments, the first resource and the first group of resources may be associated with the first dimension and the second dimension. In some embodiments, there may be at least one of the following:

● if the first group of resources comprise a second resource,

a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, or

the second index value of the second resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension;

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value minus a second offset associated with a first dimension,

a second index value of the second resource is the first index value plus a third offset associated with a second dimension, and a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension, or

a second index value of the second resource is the first index value minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension;

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension,

a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value plus a first offset associated with a first dimension and plus a third offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, or

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a third offset or minus a fourth offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset associated with a first dimension, and a fifth index value of the fifth resource is the first index value minus a sixth offset associated with a first dimension,

a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus an eighth offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, and a fifth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension,

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a third offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus a fourth offset associated with a second dimension, or

a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a fifth index value of the fifth resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension.

In some embodiments, the first offset and/or the second offset and/or the third offset and/or the fourth offset and/or fifth offset and/or sixth offset and/or seventh offset and/or eighth offset may be at least one of {1, 2, 3, 4, 6, 8} .

In some embodiments, the first group (or subset) of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be associated with a first dimension and a second dimension. In some embodiments, there may be at least one of the following:

● in case of G=1, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or vectors or spatial-related vectors) with index₀ + o1, 1 or index₀ -o1, 1 associated with the first dimension or index₀ + o2, 1 or index₀ –o2, 1 associated with the second dimension;

● in case of G=2, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or vectors or spatial-related vectors) with index₀ + o1, 1 and index₀ –o1, 1 associated with the first dimension or index₀ + o2, 1 and index₀ –o2, 1 in the second dimension or index₀ + o1, 1 (or index₀ –o1, 1) associated with the first dimension and index₀ + o2, 1 (or index₀ –o2, 1) associated with the second dimension;

● in case of G=3, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or vectors or spatial-related vectors) with index₀ + o1, 1, index₀ –o1, 1 and index₀ + o1, 2 (or index₀-o1, 2) associated with the first dimension or index₀ + o2, 1, index₀ –o2, 1 and index₀ + o2, 2 (or index₀-o2, 2) associated with the second dimension or (one or two of index₀ + o1, 1, index₀ –o1, 1, index₀ + o1, 2 and index₀-o1, 2 associated with the first dimension and two or one of index₀ + o2, 1, index₀ –o2, 1, index₀ + o2, 2 and index₀-o2, 2 associated with the second dimension) ;

● in case of G=4, the first group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise the CSI-RS resources (or SSB resources or vectors or spatial-related vectors) with index₀ + o1, 1, index₀ –o1, 1 and index₀ + o1, 2 and index₀-o1, 2 associated with the first dimension or index₀ + o2, 1, index₀ –o2, 1 and index₀ + o2, 2 and index₀-o2, 2 associated with the second dimension or (one or two or three of index₀ + o1, 1, index₀ –o1, 1 and index₀ + o1, 2 and index₀-o1, 2 associated with the first dimension and three or two or one of or index₀ + o2, 1, index₀ –o2, 1 and index₀ + o2, 2 and index₀-o2, 2 associated with the second dimension) ;

In some embodiments, “oi, j” may refer to a value ‘j’ in ‘i’ dimension. For example, “o1, 1” may refer to a value ‘1’ associated with the first dimension. For example, “o2, 1” refer to a value ‘1’ associated with the second dimension. In some embodiments, the value of “oi, j” may be at least one of {1, 2, 3, 4, 5, 6, 7, 8} .

In some embodiments, an indication of the first CSI-RS resource (or SSB or vector) may be represented as index₀, and the field size for indication of index₀ may be ceil (log2 (K) ) or ceil (log2 (K-G) ) . In some embodiments, K may be the number of resources (or SSB resources or vectors or spatial-related vectors) in the plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) , K may be positive integer. For example, 1<=K<=64. In some embodiments, K may beorFor example, there may be no indication of the first CSI-RS resource (or SSB or vector) in the first G or the last G resources (or SSB resources or vectors or spatial-related vectors) .

Below table 3 illustrates an example combination procedure. In some embodiments, i1 may be the indication or index of vector.

Table 3

In the following, more details about the measurement report will be discussed.

In some embodiments, the measurement report further indicates at least one of the following:

● a reference signal received power value of the first resource,

● a set of time or doppler domain vectors,

● a fourth indication indicating whether a measurement result combination of the first resource and the first group of resources is applied, or

● a combined measurement result of the first resource and the first group of resources.

In some embodiments, the determination of the first group of vectors may be predetermined/configured based on the value of G and/or the value of N1 and/or the value of N2.

In some embodiments, indication of the spatial-related vector may be represented as i1, (e.g., i1, 1 and/or i1, 2) .

In some embodiments, there may be a plurality of vectors or spatial-related vectors. In some embodiments, the plurality of vectors or spatial-related vectors and/or the number of vectors or spatial-related vectors in the plurality of vectors or spatial-related vectors may be based on the value of N₁ and/or N₂ and/or O₁ and/or O₂. In some embodiments, the number of vectors or spatial-related vectors in the plurality of vectors or spatial-related vectors may be N₁*O₁*N₂*O₂ or N₁*O₁ or N₂*O₂ or N₁*N₂ or N₁ or N₂. In some embodiments, one vector or one spatial-related vector may be a vector with length N₁*N₂ or with length N₁*O₁*N₂*O₂ or a vector with N₁*N₂ or N₁*O₁*N₂*O₂ values.

In some embodiments, one vector or one spatial-related vector may be represented as:

In some embodiments, l may be non-negative integer. For example, l∈{0, 1, . . . N₁*O₁-1} or 0≤l≤N₁*O₁-1. In some embodiments, m may be non-negative integer. For example, m∈ {0, 1, . . . N₂*O₂-1} or 0≤m≤N₂*O₂-1.

In some embodiments, l may be non-negative integer. For example, l∈{0, 1, . . . N₁-1} or 0≤l≤N₁-1. In some embodiments, m may be non-negative integer. For example, m∈ {0, 1, . . . N₂-1} or 0≤m≤N₂-1.

In some embodiments, the first group of vectors may beand/or and/orand/orand/orand/orand/orand/orand/or and/orand/orand/or

In some embodiments, in case of N2=1, G may be at least one of {1, 2, 3, 4} . In some embodiments, in case of N2>1, G may be at least one of {1, 2, 3, 4, 5, 6} .

In some embodiments, the first resource and the first group of resources may be comprised in a set of resources of at least one set of resources, and the at least one set of resources is configured by the second device 120 or reported by the first device 110.

In some embodiments, when the first resource and the first group of resources may be comprised in a set of resources, the measurement report further indicates at least one of the following:

● a set identity of the set of resources,

● a fifth indication indicating a resource in the set of the resources with the largest reference signal received power value, wherein the resource corresponds to the first resources,

● a sixth indication indicating which resources in the first group of resources or in the set of resources are applied to a measurement result combination.

In some embodiments, the sixth indication may be a bitmap corresponding to the set of resources or the first group of resources, or the sixth indication is a specific value of the amplitude coefficient or the phase coefficient which implies that a corresponding resource is not applied to the measurement result combination.

In some embodiments, one codepoint or one candidate value for the amplitude coefficient and/or phase coefficient may be 0 or invalid or reserved. For example, the codepoint or the candidate value may be applied to indicate the corresponding CSI-RS (or SSB or vector) not applied for combination.

Reference may be made to FIG. 5, where FIG. 5 illustrates a block 500 of information comprised in the measurement report. In FIG. 5, the plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may comprise a multiple sets of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) , and the measurement report may comprise the index of a first set of CSI-RS resources (or SSB resources or vectors spatial-related vectors) . In some embodiments, the index may be represented as index_s. In some embodiments, index_s may be a non-negative integer. For example, 0<= index_s <=16.

In some embodiments, the field size for the indication of the index of the first set may be ceil (log2 (K_s) ) , wherein K_smay be the number of sets in the plurality of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) . In some embodiments, K_smay be a non-negative integer. For example, 0<= K_s<=16. In some embodiments, each set may comprise G+1 CSI-RS resources (or SSB resources or vectors or spatial-related vectors) .

In some embodiments, the measurement report may comprise indication of a strongest (or reference) CSI-RS resource (or SSB or vector) in the indicated first set of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) .

In some embodiments, the first group of amplitude coefficients and/or the first group of phase coefficients may correspond to the remaining G CSI-RS resources (or SSB resources or vectors or spatial-related vectors) except the strongest (or the reference) CSI-RS resource (or SSB or vector) .

In some embodiments, the measurement report may further comprise indication of whether combination applied.

In some embodiments, the indication of whether combination applied or not may be a separate bit or jointly with indication of G or based on a codepoint of amplitude coefficient and/or a codepoint of phase coefficient.

In some embodiments, the measurement report may further comprise indication of selection of at least one CSI-RS resource (or SSB or vector) from the group (or subset) of CSI-RS resources (or SSB resources or vectors spatial-related vectors) , and the at least one CSI-RS resource (or SSB or vector) may be applied for combination.

In some embodiments, the selection may be a bitmap with G or G-1 bits.

In some embodiments, the measurement report may further comprise RSRP/SINR value corresponding to the combination of the first subset of CSI-RS resources (or SSB resources or vectors) (or the first CSI-RS resource (or SSB resource or vector) and the first group of CSI-RS resources (or SSB resources or vectors) ) .

In some embodiments, the RSRP/SINR corresponding to the combination may be differential to the RSRP/SINR corresponding to the first CSI-RS resource, and the candidate differential values may be all positive or non-negative, with 1 or 1.5 or 2 or 3dB step size. In some embodiments, the field size may be 2 or 3 or 4 bits.

In some embodiments, in case of 2 parts CSI report, the first CSI part may comprise at least one of: indication of the first (or first set of) CSI-RS resource (or SSB or vector) , indication of whether combination applied or not (or indication of selection of at least one CSI-RS resource (or SSB resource or vector or spatial-related vector) ) , indication of number of (time domain) TD/ (doppler domain) DD bases, the second CSI part may comprise at least one of: indication of first group of amplitude/phase coefficients, indication of the set of time or doppler domain bases.

In some embodiments, the priority for the CSI report may be same as the CSI report carrying L1-RSRP/L1-SINR.

In some embodiments, the measurement report may further comprise indication of a set of time (or doppler) domain bases (e.g., the number of bases may be T, T may be positive integer) , and the number of coefficients in the corresponding group of amplitude coefficients (or phase coefficients) may be G*T or (G-1) *T.

In some embodiments, the measurement report may further comprise:

● a further resource,

● a further group of amplitude coefficients associated with a further group of resources, and

● a further group of phase coefficients associated with the further group of resource,

● and wherein the further group of resources is determined based on the further resource.

In some embodiments, the measurement report may comprise indication of at least one CSI-RS resource (or SSB or vector) or at least one subset of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) , and for each one of at least one group (or subset) of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) , there may be a corresponding group of amplitude coefficients (or a group of RSRP/SINR values) , and/or a corresponding group of phase coefficients, wherein each one of the at least one group of CSI-RS resources (or SSB resources or vector or spatial- related vectors) may be based on each one of the at least one CSI-RS resource (or SSB or vector) .

In some embodiments, the amplitude coefficient and/or the phase coefficient corresponding to each one of the at least one index of CSI-RS resource (or SSB or vector) or corresponding to the strongest/reference CSI-RS resource (or SSB or vector) in each subset of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be assumed to be 1.

In some embodiments, the amplitude coefficient and/or the phase coefficient corresponding to the group of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) or corresponding to the other CSI-RS resources (or SSB resources or vectors or spatial-related vectors) except the reference CSI-RS resource (or SSB or vector) in each subset of CSI-RS resources (or SSB resources or vectors or spatial-related vectors) may be differential to or based on each one of the at least one CSI-RS resource (or SSB resources or vectors or spatial-related vectors) .

In some embodiments, the measurement report may further comprise a RSRP/SINR value corresponding to each one of the at least one CSI-RS resource (or SSB or vector) or corresponding to each one of the at least one subset of CSI-RS resources (or SSB or vector) .

In some embodiments, the RSRP/SINR value may be absolute value for the first one or the first subset, and differential value for the remaining ones or subsets.

Below table 4 illustrates an example combination procedure.

Table 4

In this way, in addition to the first resource, related information of a group of beams also may be provided to the second device 120. By using such information, the second device 120 may be combined a finer beam. As a result, the following signalling interaction for obtaining a finer beam may be saved.

Processes for exchanging antenna-related information

Reference is now made to FIG. 6, which illustrates a signaling flow 600 of communication in accordance with some embodiments of the present disclosure. For the purposes of discussion, the signaling flow 600 will be discussed with reference to FIG. 1, for example, by using the first device 110 and the second device 120.

In the example of FIG. 6, the first device 110 may be a terminal device or a network device, and the second device 120 may be a terminal device or a network device.

In operation, the first device 110 may receive 620 antenna information from a second device 120, where the antenna information may be used by the second device 120 for transmitting at least one first reference signal, wherein the at least one first reference signal may be associated with or may be transmitted at a plurality of transmission occasions. In some embodiments, the first device 110 may receive 630 the at least one first reference signal from the second device 120 based on the antenna information.

In some embodiments, the first device 110 may transmit 640 at least one second reference signal with a spatial domain transmission filter to the second device 120. Alliteratively, or in addition, in some embodiments, the first device 110 may transmit 640 at least one vector to the second device 120.

In some embodiments, the spatial domain transmission filter and/or the at least one vector may be determined based on at least one of the following:

● the antenna information, or

● a combination of at least one the first reference signal on the plurality of transmission occasions.

In some embodiments, the at least one first reference signal transmitted at the plurality of transmission occasions may be a same reference signal.

Alternatively, in some embodiments, the at least one first reference signal transmitted at the plurality of transmission occasions may be different reference signals.

In some embodiments, the antenna information comprises at least one of the following:

● an interval between antennas for different occasions (or two adjacent occasions) of the plurality of transmission occasions, or

● the number of the plurality of transmission occasions.

In some embodiments, the first device 110 may transmit 610 an antenna structure of the first device 110 to the second device 120.

For a better understanding, some example embodiments are discussed as below.

In some embodiments, the first device 110 may receive antenna information from a second device, and the first device may receive a same first reference signal or a plurality of different first reference signals from the second device 120 at a plurality of occasions. In some embodiments, the first reference signal (s) transmitted at the plurality of occasions may be transmitted by different antenna element (s) or different antenna (s) or different antenna port (s) of the second device 120.

In some embodiments, the first device 110 may transmit at least one second reference signal with a spatial domain transmission filter, wherein the spatial domain transmission filter may be based on the antenna information and/or combination of the reception of the more than one occasion of the first reference signal (s) .

Alternatively, in some embodiments, the first device 110 may transmit a measurement report comprising at least one (e.g. DFT) vector for reception or transmission, wherein the at least one (e.g. DFT) vector may be based on the antenna information and/or combination of the more than one occasion of the first reference signal (s) . In some embodiments, in case the number of received first reference signals is 1, the length of the (e.g. DFT) vector may be N, and in case the number of received first reference signals is 2, the length of the (e.g. DFT) vector may be 2N, and so on. That is, by receiving more than one first reference signal, the first device 110 may generate a longer (e.g. DFT) vector, which may be transmitted to the second device 120 to achieve a better channel quality. In some embodiments, the at least one vector may be a vector with length N1*N2*X or N1*N2*O1*O2*X or N1*X1*N2*X2 or N1*X1*O1*N2*X2*O2 or N1*X1 or N2*X2 or N1*X1*O1 or N2*X2*O2.

In some embodiments, the QCL assumptions for the more than one occasion of the first reference signal (s) may be the same.

In some embodiments, the first device 110 may transmit structure of reception antenna or transmission antenna (e.g. (N1, N2) ) or the number of reception or transmission antennas (e.g., represented as N, e.g. N=N1*N2 or N=2*N1*N2) to the second device 120, where N1 may be the number of antennas in first dimension, N2 may be the number of antennas in second dimension.

In some embodiments, the antenna information may comprise at least one of: antenna interval applied for the more than one occasion of the first reference signal or the plurality of second reference signals, number of the more than one occasion or the number of second reference signals. In some embodiments, the number may be X or in first dimension X1 and in second dimension X2. For example, X and/or X1 and/or X2 may be positive integer. For example, 1<=X<=8. For example, 1<=X1<=8. For example, 1<=X2<=8. For example, X=X1*X2. In some embodiments, the antenna interval for two adjacent transmission/reception may be in term of half wavelength. For example, , N*d or (N1*d, 0) or (0, N2*d) or (N1*d, N2*d) . In some embodiments, d may be based on the wavelength of the transmission signal. In some embodiments, d may be 1/F*c/f or F*c/f. In some embodiments, F may be positive integer. For example, 1<=F<=8. In some embodiments, c may be speed of light. For example, c may be 3*10⁸ m/sor 299792458 m/s. In some embodiments, f may be frequency of the transmission signal or carrier frequency. For example, 1<=f<=1000*10⁸ Hz.

Processes for SRS/CSI-RS repetition based on reported CSI-RS/SSB

Reference is now made to FIG. 7, which illustrates a signaling flow 700 of communication in accordance with some embodiments of the present disclosure. For the purposes of discussion, the signaling flow 700 will be discussed with reference to FIG. 1, for example, by using the first device 110 and the second device 120.

Further, for ease of discussion, the first device 110 may be described as a terminal device and the second device 120 may be described as a network device.

In operation, the first device 110 may transmit 710 an index of CSI-RS resource or an SSB resource to the second device 120. In some embodiments, the index may be comprised in uplink control information (UCI) or MAC CE. In some embodiments, the index may be transmitted with PUCCH or PUSCH.

In some embodiments, the first device 110 may transmit 720 to the second device 120, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource.

In some embodiments, the first device 110 may receive 730 from the second device 120, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In some embodiments, the transmission of the plurality of SRS resources or the plurality of CSI-RS resources may be a one-time operation.

In some embodiments, the transmission of the plurality of SRS resources or the plurality of CSI-RS resources may be performed within a pre-determined duration.

For a better understanding, some example embodiments are discussed as below.

In some embodiments, the first device 110 may transmit/report an index of SSB (or CSI-RS) to the second device 120.

In some embodiments, the first device 110 may transmit at least one SRS resource (or at least one repetition of one SRS resource) with the same spatial domain transmission filter used for the reception or based on the index of SSB (or CSI-RS) , In some embodiments, the same spatial domain transmission filter may replace the configured or pre-determined or previous spatial domain transmission filter for the at least one SRS resource. For example, when a condition satisfied. In some embodiments, the first device may transmit the at least one SRS resource with previous spatial domain transmission filter when the condition not satisfied. For example, the first device 110 may transmit at least one SRS resource (or at least one repetition of one SRS resource) may be after or in response to transmitting the index.

Alternatively, in some embodiments, the first device 110 may receive a plurality of CSI-RS resources (e.g., with repetition ‘OFF’ ) , with assumption of quasi co-located with QCL type D with the SSB (or CSI-RS) In some embodiments, the assumption may replace the RS configured with qcl-Type set to 'typeD' for the plurality of CSI-RS resources. For example, when the condition satisfied.

In some embodiments, the condition may comprise at least one of:

● a duration of starting from a first time interval after a last symbol of transmission of the first information or starting from a second time interval from a last symbol of a first PDCCH reception with a first DCI format scheduling a PUSCH transmission with a same HARQ process number as for the transmission of a first PUSCH (wherein the first PUSCH may comprise the first information (MAC CE) ) and having a toggled NDI field value, and/or until a third time interval after a first transmission occasion for the at least one SRS resource (or until a fourth time interval after the transmission of the first information) ;

● the at least one SRS resource in a first transmission occasion;

● the at least one SRS resource or the plurality of CSI-RS resources is triggered by the first DCI format.

In some embodiments, the at least one SRS resource may not be configured with uplink TCI state or spatialRelationInfo or followUnifiedTCI-StateSRS.

In some embodiments, the index may be comprised in a UCI or MAC CE similar as beam failure recovery (BFR) MAC CE.

In this disclosure, the terms “beam management” and “beam measurement” may be used interchangeably.

In some embodiments, the first device 110 (e.g. the terminal device) may transmit at least one indication to the second device 120 (e.g. the network device) . For example, the at least one indication may be applied for UE initiated beam management or UE triggered beam management or event triggered beam management or for UE requiring for new beam or for UE requiring for beam management. In some embodiments, the at least one indication may comprise at least one of: at least one field for special cell (SpCell) , at least one field for at least one secondary cell (SCell) , at least one field for at least one group of cells (For example, each one of the at least one group of cells may apply or may be associated with one or two or three or four same TCI states) , at least one indication (or at least one index) of CSI-RS resource (or CSI-RS resource set or SSB resource or SSB resource set) corresponding to the SpCell (for example, if beam management is requested for the SpCell or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to the SpCell in the at least one indication or one of the at least one field for SpCell is set to 1) , at least one indication (or at least one index) of at least one CSI-RS resource (or CSI-RS resource set or SSB resource or SSB resource set) corresponding to at least one of the at least one SCell (for example, if beam management is requested for at least one of the at least one SCell or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to at least one of the at least one SCell in the at least one indication or at least one of the at least one field for the one of the at least one SCell is set to 1) , at least one indication (or at least one index) of at least one CSI-RS resource (or CSI-RS resource set or SSB resource or SSB resource set) corresponding to at least one of the at least one group of cells (for example, if beam management is requested for at least one of the at least one group of cells or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to at least one of the at least one group of cells in the at least one indication or at least one of the at least one field for the one of the at least one group of cells is set to 1) , at least one field for indicating RSRP or SINR corresponding to the at least one CSI-RS resource (or CSI-RS resource set or SSB resource or SSB resource set) corresponding to at least one of the at least one SCell (for example, if beam management is requested for at least one of the at least one SCell or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to at least one of the at least one SCell in the at least one indication or at least one of the at least one field for the one of the at least one SCell is set to 1) , an indication of index of the one of at least one CSI-RS resource (or CSI-RS resource set or SSB resource or SSB resource set) (wherein the one of the at least one CSI-RS resource (or the one of CSI-RS resources in the at least one CSI-RS resource set or the one of the at least one SSB resource or the one of SSB resources in the at least one SSB resource set) may be associated with or correspond to a largest value of RSRP or SINR) and at least one reserved bit. For example, the reserved bit may be set to 0.

In some embodiments, the at least one field for SpCell may indicate whether beam management is requested for the SpCell or not or indicate whether there is at least one index of CSI-RS resource or SSB resource corresponding to the SpCell in the at least one indication or not. In some embodiments, each one of the at least one field for SpCell may be 1 bit. In some embodiments, if one of the at least one field for SpCell is set to 1, the one of the at least one field for SpCell may indicate that beam management is requested for the SpCell or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to the SpCell in the at least one indication. In some embodiments, if one of the at least one field for SpCell is set to 0, the one of the at least one field for SpCell may indicate that beam management is not requested for the SpCell or may indicate there is no index of CSI-RS resource or SSB resource corresponding to the SpCell in the at least one indication.

In some embodiments, the at least one field for at least one SCell may indicate whether beam management is requested for the at least one SCell or not or indicate whether there is at least one index of CSI-RS resource or SSB resource corresponding to the at least one SCell in the at least one indication or not. In some embodiments, each one of the at least one field for at least one SCell may indicate whether beam management is requested for one of the at least one SCell or not or indicate whether there is at least one index of CSI-RS resource or SSB resource corresponding to one of the at least one SCell in the at least one indication or not. In some embodiments, the at least one field for at least one SCell may be in order of index of the SCell or in order of index of serving cell (e.g. ServCellIndex) . In some embodiments, each one of the at least one field for one of the at least one SCell may be 1 bit. In some embodiments, if one of the at least one field for one of the at least one SCell is set to 1, the one of the at least one field for at least one SCell may indicate that beam management is requested for the one of the SCell or may indicate there is at least one index of CSI-RS resource or SSB resource corresponding to the one of the SCell in the at least one indication. In some embodiments, if one of the at least one field for one of the at least one SCell is set to 0, the one of the at least one field for SCell may indicate that beam management is not requested for the one of the SCell or may indicate there is no index of CSI-RS resource or SSB resource corresponding to the one of the SCell in the at least one indication.

In some embodiments, the size of one field for RSRP or SINR may be 4 bits or 7 bits. In some embodiments, the size of the one field for the largest RSRP or largest SINR may be 7 bits. In some embodiments, the size of the one field for other RSRP or SINR may be 4 bits.

In some embodiments, the terminal device may instruct the Multiplexing and Assembly procedure to generate the at least one indication (or generate the MAC CE comprising the at least one indication) and/or may transmit the at least one indication (or transmit the MAC CE comprising the at least one indication) if uplink shared channel (UL-SCH) resources or PUSCH resources are available for a new transmission and/or if the UL-SCH resources or PUSCH resources can accommodate the at least one indication.

In some embodiments, the terminal device may trigger a scheduling request (SR) if uplink shared channel (UL-SCH) resources or PUSCH resources are not available for a new transmission and/or if the UL-SCH resources or PUSCH resources cannot accommodate the at least one indication.

In some embodiments, special cell may comprise at least one of: primary cell (Pcell) , primary secondary cell group (SCG) cell (PSCell) , PSCell of the SCG and Pcell of the master cell group (MCG) .

In some embodiments, there may be a first threshold or a first offset for RSRP and/or for SINR corresponding to CSI-RS and/or a second threshold or a second offset for RSRP and/or for SINR corresponding to SSB. In some embodiments, if RSRP and/or SINR corresponding to any one of CSI-RS resource and/or any SSB resource for RSRP reporting or for SINR reporting (or for ‘cri-RSRP’ or for ‘cri-SINR’ or for ‘cri-RSRP-Index’ or for ‘cri-SINR-Index’ ) or the lowest RSRP or lowest SINR among the CSI-RS resources and/or the SSB resources for RSRP reporting or for SINR reporting (or for ‘cri-RSRP’ or for ‘cri-SINR’ or for ‘cri-RSRP-Index’ or for ‘cri-SINR-Index’ ) is lower than the first threshold and/or the second threshold and/or the first offset based on the first threshold and/or the second offset based on the second threshold, the at least one indication may be triggered to be transmitted (or the beam management may be triggered) .

In some embodiments, the terminal device may monitor PDCCH in all or a group of CORESETs on the SpCell or on the SCell (s) or on the group of cells indicated by the at least one indication using the same antenna port quasi co-location parameters as the ones associated with the corresponding index (es) of the at least one index of CSI-RS resource or SSB resource corresponding to the SpCell or corresponding to one of the at least one SCell or corresponding to one of the at least one group of cells (For example, the one CSI-RS resource or the one SSB resource associated with or corresponding to the largest value of RSRP or largest value of SINR or lowest identity or index with same largest value of RSRP or largest value of SINR) in the at least one indication. For example, after 28 symbols from a last symbol of a PDCCH reception with a downlink control information (DCI) format scheduling a PUSCH transmission with a same hybrid automatic repeat request (HARQ) process number as for the transmission of the first PUSCH and having a toggled new data indication (NDI) field value.

In some embodiments, the terminal device may transmit PUSCH and/or PUCCH (e.g. on a PUCCH-SCell) using a same spatial domain filter as the one corresponding to the at least one index of CSI-RS resource or SSB resource corresponding to the SpCell or corresponding to one of the at least one SCell or corresponding to one of the at least one group of cells (For example, the one CSI-RS resource or the one SSB resource associated with or corresponding to the largest value of RSRP or largest value of SINR or lowest identity or index with same largest value of RSRP or largest value of SINR) in the at least one indication. For example, after 28 symbols from a last symbol of a PDCCH reception with a DCI format scheduling a PUSCH transmission with a same hybrid automatic request request (HARQ) process number as for the transmission of the first PUSCH and having a toggled new data indication (NDI) field value.

Example methods

FIG. 8 illustrates a flowchart of a communication method 800 implemented at a first device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of the first device 110 in FIG. 1.

At block 810, the first device may receive, from a second device, configuration information for a measurement report.

At block 820, the first device may transmit, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In some example embodiments, resources in the first group of resources and the first resource are adjacent in spatial domain.

In some example embodiments, the number of resources in the first group of resources is defined as a default number, configured by the second device, or reported by the first device.

In some example embodiments, the number of resources in the first group of resources RS resources is one of {1, 2, 3, 4, 5, 6, 7, 8} .

In some example embodiments, the first resource and at least part of the resources in the first group of resources support to be combined with the following: amplitude information associated with the first resource and amplitude coefficients associated with the at least part of the resources, or phase information associated with the first resource and phase coefficients associated with the at least part of the resources.

In some example embodiments, the first resource and the at least part of the resources correspond to with a same polarization direction.

In some example embodiments, the configuration information indicates a plurality of resources and/or adjacency relationships in spatial domain between resources in the plurality of resources, and wherein, the plurality of resources are associated with actual transmissions, or the plurality of resources are determined based on a codebook-related configuration.

In some example embodiments, the configuration information indicates at least one of the following: a first quantization size of the amplitude coefficients, a second quantization size of the phase coefficients, a first indication that the measurement report is associated with a first dimension, a second indication that the measurement report is associated with a second dimension, or a third indication that the measurement report is associated with the first and second dimensions.

In some example embodiments, the first group of resources is determined based on the first resource and at least one of the following: a pre-defined rule, the number of resources in the first group of resources, a first value of a first parameter of antenna port configuration in a first dimension, or a second value of a second parameter of antenna port configuration in a second dimension.

In some example embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset, if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset, and a third index value of the third resource is the first index value minus a second offset, if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, and a fourth index value of the fourth resource is the first index value plus a third offset or minus a fourth offset, or if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, a fourth index value of the fourth resource is the first index value plus a third offset, and a fifth index value of the fifth resource is the first index value minus a fourth offset.

In some example embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, or the second index value of the second resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, and a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a third offset or minus a fourth offset associated with a second dimension, if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset associated with a first dimension, and a fifth index value of the fifth resource is the first index value minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, and a fifth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a third offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a fifth index value of the fifth resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension.

In some example embodiments, the measurement report further indicates at least one of the following: a reference signal received power value of the first resource, a set of time or doppler domain vectors, a fourth indication indicating whether a measurement result combination of the first resource and the first group of resources is applied, or a combined measurement result of the first resource and the first group of resources.

In some example embodiments, the first resource and the first group of resources are comprised in a set of resources of at least one set of resources, and the at least one set of resources is configured by the second device or reported by the first device.

In some example embodiments, the measurement report further indicates at least one of the following: a set identity of the set of resources, a fifth indication indicating a resource in the set of the resources with the largest reference signal received power value, wherein the resource corresponds to the first resources, a sixth indication indicating which resources in the first group of resources or in the set of resources are applied to a measurement result combination.

In some example embodiments, the sixth indication is a bitmap corresponding to the set of resources or the first group of resources, or the sixth indication is a specific value of the amplitude coefficient or the phase coefficient which implies that a corresponding resource is not applied to the measurement result combination.

In some example embodiments, the measurement report further indicates: a further resource, a further group of amplitude coefficients associated with a further group of resources, and a further group of phase coefficients associated with the further group of resource, and wherein the further group of resources is determined based on the further resource.

In some example embodiments, the first device is a terminal device and the second device is a network device.

FIG. 9 illustrates a flowchart of a communication method 900 implemented at a first device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 900 will be described from the perspective of the first device 110 in FIG. 1.

At block 910, the first device may receive, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions.

At block 920, the first device may receive, based on the antenna information, the at least one first reference signal from the second device.

At block 930, at least one first reference signals transmit, to the second device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or at least one vector, wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: the antenna information, or a combination of at least one the first reference signal on the plurality of transmission occasions.

In some example embodiments, the processor is further caused to: transmit, to the second device, an antenna structure of the first device.

In some example embodiments, the antenna information comprises at least one of the following: an interval between antennas for different occasions of the plurality of transmission occasions, or the number of the plurality of transmission occasions.

In some example embodiments, the at least one first reference signal transmitted at the plurality of transmission occasions are a same reference signal or different reference signals.

In some example embodiments, the first device is a terminal device or a network device, and the second device is a terminal device or a network device.

FIG. 10 illustrates a flowchart of a communication method 1000 implemented at a first device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 1000 will be described from the perspective of the first device 110 in FIG. 1.

At block 1010, the first device may transmit, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource.

At block 1020, the first device may perform at least one of the following: transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In some example embodiments, a transmission of the plurality of SRS resources or the plurality of CSI-RS resources is a one-time operation or is performed within a pre-determined duration.

In some example embodiments, the index is comprised in uplink control information (UCI) or a medium access control (MAC) control element.

FIG. 11 illustrates a flowchart of a communication method 1100 implemented at a second device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 1100 will be described from the perspective of the second device 120 in FIG. 1.

At block 1110, the second device may transmit, to a first device, configuration information for a measurement report.

At block 1120, the second device may receive, from the first device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In some example embodiments, the first resource and the at least part of the resources are associated with a same polarization direction.

In some example embodiments, the first group of resources is determined based on the first resource and at least one of the following: a pre-defined rule, the number of resources in the first group of resources, a first value of the first parameter of antenna port configuration in a first dimension, or a second value of the second parameter of antenna port configuration in a second dimension.

In some example embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, or the second index value of the second resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, and a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a third offset or minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a fifth offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset associated with a first dimension, and a fifth index value of the fifth resource is the first index value minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, and a fifth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a third offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a fifth index value of the fifth resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension.

FIG. 12 illustrates a flowchart of a communication method 1200 implemented at a second device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 1200 will be described from the perspective of the second device 120 in FIG. 1.

At block 1210, the second device may transmit, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions.

At block 1220, the second device may transmit, based on the antenna information, the at least one first reference signal to the first device.

At block 1230, the second device may receive, from the first device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or a vector, wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: the antenna information, or a combination of the at least one first reference signal on the plurality of transmission occasions.

In some example embodiments, the processor is further caused to: receive from the first device, an antenna structure of the first device.

In some example embodiments, the antenna information comprises at least one of the following: an interval between antennas for the plurality of transmission occasions, or the number of the plurality of transmission occasions.

FIG. 13 illustrates a flowchart of a communication method 1300 implemented at a second device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 1300 will be described from the perspective of the second device 120 in FIG. 1.

At block 1310, the second device may receive, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource.

At block 1320, the second device may perform at least one of the following: receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

Example devices and apparatuses

FIG. 14 is a simplified block diagram of a device 1400 that is suitable for implementing embodiments of the present disclosure. The device 1400 can be considered as a further example implementation of any of the devices as shown in FIG. 1. Accordingly, the device 1400 can be implemented at or as at least a part of the first device 110 or the second device 120.

As shown, the device 1400 includes a processor 1410, a memory 1420 coupled to the processor 1410, a suitable transceiver 1440 coupled to the processor 1410, and a communication interface coupled to the transceiver 1440. The memory 1420 stores at least a part of a program 1430. The transceiver 1440 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 1440 may include at least one of a transmitter 1442 and a receiver 1444. The transmitter 1442 and the receiver 1444 may be functional modules or physical entities. The transceiver 1440 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.

The program 1430 is assumed to include program instructions that, when executed by the associated processor 1410, enable the device 1400 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGS. 1 to 13. The embodiments herein may be implemented by computer software executable by the processor 1410 of the device 1400, or by hardware, or by a combination of software and hardware. The processor 1410 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 1410 and memory 1420 may form processing means 1450 adapted to implement various embodiments of the present disclosure.

The memory 1420 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 1420 is shown in the device 1400, there may be several physically distinct memory modules in the device 1400. The processor 1410 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 1400 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.

According to embodiments of the present disclosure, a first device comprising a circuitry is provided. The circuitry is configured to: receive, from a second device, configuration information for a measurement report; and transmit, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the first device as discussed above.

According to embodiments of the present disclosure, a first device comprising a circuitry is provided. The circuitry is configured to: receive, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; receive, based on the antenna information, the at least one first reference signal from the second device; and transmit, to the second device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or at least one vector, wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: the antenna information, or a combination of at least one the first reference signal on the plurality of transmission occasions. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the first device as discussed above.

According to embodiments of the present disclosure, a first device comprising a circuitry is provided. The circuitry is configured to: transmit, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the first device as discussed above.

According to embodiments of the present disclosure, a second device comprising a circuitry is provided. The circuitry is configured to: transmit, to a first device, configuration information for a measurement report; and receive, from the first device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the second device as discussed above.

According to embodiments of the present disclosure, a second device comprising a circuitry is provided. The circuitry is configured to: transmit, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; transmit, based on the antenna information, the at least one first reference signal to the first device; and receive, from the first device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or a vector, wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: the antenna information, or a combination of the at least one first reference signal on the plurality of transmission occasions. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the second device as discussed above.

According to embodiments of the present disclosure, a second device comprising a circuitry is provided. The circuitry is configured to: receive, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource. According to embodiments of the present disclosure, the circuitry may be configured to perform any method implemented by the second device as discussed above.

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.

According to embodiments of the present disclosure, a first apparatus is provided. The first apparatus comprises means for receiving, from a second device, configuration information for a measurement report; and means for transmitting, to the second device, the measurement report comprising the following: means for an indication of a first resource, means for a first group of amplitude coefficients associated with a first group of resources, and means for a first group of phase coefficients associated with the first group of resources, means for wherein the first group of resources is determined based on the first resource, means for and wherein the first resource or a resource in the first group of resources corresponds to one of the following: means for a channel state information (CSI) -reference signal (RS) resource, means for a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or means for a spatial-related vector. In some embodiments, the first apparatus may comprise means for performing the respective operations of the method 800. In some example embodiments, the first apparatus may further comprise means for performing other operations in some example embodiments of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

According to embodiments of the present disclosure, a first apparatus is provided. The first apparatus comprises means for receiving, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; means for receiving, based on the antenna information, the at least one first reference signal from the second device; and means for transmitting, to the second device, at least one of the following: means for at least one second reference signal with a spatial domain transmission filter, or means for at least one vector, means for wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: means for the antenna information, or means for a combination of at least one the first reference signal on the plurality of transmission occasions. In some embodiments, the second apparatus may comprise means for performing the respective operations of the method 900. In some example embodiments, the second apparatus may further comprise means for performing other operations in some example embodiments of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

According to embodiments of the present disclosure, a first apparatus is provided. The first apparatus comprises means for transmitting, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and means for performing at least one of the following: means for transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or means for receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource. In some embodiments, the third apparatus may comprise means for performing the respective operations of the method 1000. In some example embodiments, the third apparatus may further comprise means for performing other operations in some example embodiments of the method 1000. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

According to embodiments of the present disclosure, a second apparatus is provided. The second apparatus comprises means for transmitting, to a first device, configuration information for a measurement report; and means for receiving, from the first device, the measurement report comprising the following: means for an indication of a first resource, means for a first group of amplitude coefficients associated with a first group of resources, and means for a first group of phase coefficients associated with the first group of resources, means for wherein the first group of resources is determined based on the first resource, means for and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: means for a channel state information (CSI) -reference signal (RS) resource, means for a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or means for a spatial-related vector. In some embodiments, the fourth apparatus may comprise means for performing the respective operations of the method 1100. In some example embodiments, the fourth apparatus may further comprise means for performing other operations in some example embodiments of the method 1100. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

According to embodiments of the present disclosure, a second apparatus is provided. The second apparatus comprises means for transmitting, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; means for transmitting, based on the antenna information, the at least one first reference signal to the first device; and means for receiving, from the first device, at least one of the following: means for at least one second reference signal with a spatial domain transmission filter, or means for a vector, means for wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: means for the antenna information, or means for a combination of the at least one first reference signal on the plurality of transmission occasions. In some embodiments, the fifth apparatus may comprise means for performing the respective operations of the method 1200. In some example embodiments, the fifth apparatus may further comprise means for performing other operations in some example embodiments of the method 1200. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

According to embodiments of the present disclosure, a second apparatus is provided. The second apparatus comprises means for receiving, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and means for performing at least one of the following: means for receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or means for transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource. In some embodiments, the sixth apparatus may comprise means for performing the respective operations of the method 1300. In some example embodiments, the sixth apparatus may further comprise means for performing other operations in some example embodiments of the method 1300. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.

In summary, embodiments of the present disclosure provide the following aspects.

In an aspect, it is proposed a first device comprising: a processor configured to cause the first device to: receive, from a second device, configuration information for a measurement report; and transmit, to the second device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In some embodiments, the number of resources in the first group of resources is defined as a default number, configured by the second device, or reported by the first device.

In some embodiments, the number of resources in the first group of resources RS resources is one of {1, 2, 3, 4, 5, 6, 7, 8} .

In some embodiments, the first resource and at least part of the resources in the first group of resources support to be combined with the following: amplitude information associated with the first resource and amplitude coefficients associated with the at least part of the resources, or phase information associated with the first resource and phase coefficients associated with the at least part of the resources.

In some embodiments, the first resource and the at least part of the resources correspond to with a same polarization direction.

In some embodiments, the configuration information indicates a plurality of resources and/or adjacency relationships in spatial domain between resources in the plurality of resources, and wherein, the plurality of resources are associated with actual transmissions, or the plurality of resources are determined based on a codebook-related configuration.

In some embodiments, the configuration information indicates at least one of the following: a first quantization size of the amplitude coefficients, a second quantization size of the phase coefficients, a first indication that the measurement report is associated with a first dimension, a second indication that the measurement report is associated with a second dimension, or a third indication that the measurement report is associated with the first and second dimensions.

In some embodiments, the first group of resources is determined based on the first resource and at least one of the following: a pre-defined rule, the number of resources in the first group of resources, a first value of a first parameter of antenna port configuration in a first dimension, or a second value of a second parameter of antenna port configuration in a second dimension.

In some embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset, if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset, and a third index value of the third resource is the first index value minus a second offset, if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, and a fourth index value of the fourth resource is the first index value plus a third offset or minus a fourth offset, or if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset, a third index value of the third resource is the first index value minus a second offset, a fourth index value of the fourth resource is the first index value plus a third offset, and a fifth index value of the fifth resource is the first index value minus a fourth offset.

In some embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, or the second index value of the second resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, and a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a third offset or minus a fourth offset associated with a second dimension, if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset associated with a first dimension, and a fifth index value of the fifth resource is the first index value minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, and a fifth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a third offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a fifth index value of the fifth resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension.

In some embodiments, the measurement report further indicates at least one of the following: a reference signal received power value of the first resource, a set of time or doppler domain vectors, a fourth indication indicating whether a measurement result combination of the first resource and the first group of resources is applied, or a combined measurement result of the first resource and the first group of resources.

In some embodiments, the first resource and the first group of resources are comprised in a set of resources of at least one set of resources, and the at least one set of resources is configured by the second device or reported by the first device.

In some embodiments, the measurement report further indicates at least one of the following: a set identity of the set of resources, a fifth indication indicating a resource in the set of the resources with the largest reference signal received power value, wherein the resource corresponds to the first resources, a sixth indication indicating which resources in the first group of resources or in the set of resources are applied to a measurement result combination.

In some embodiments, the sixth indication is a bitmap corresponding to the set of resources or the first group of resources, or the sixth indication is a specific value of the amplitude coefficient or the phase coefficient which implies that a corresponding resource is not applied to the measurement result combination.

In some embodiments, the measurement report further indicates: a further resource, a further group of amplitude coefficients associated with a further group of resources, and a further group of phase coefficients associated with the further group of resource, and wherein the further group of resources is determined based on the further resource.

In some embodiments, the first device is a terminal device and the second device is a network device.

In an aspect, it is proposed a first device comprising: a processor configured to cause the first device to: receive, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; receive, based on the antenna information, the at least one first reference signal from the second device; and transmit, to the second device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or at least one vector, wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following: the antenna information, or a combination of at least one the first reference signal on the plurality of transmission occasions.

In some embodiments, the processor is further caused to: transmit, to the second device, an antenna structure of the first device.

In some embodiments, the antenna information comprises at least one of the following: an interval between antennas for different occasions of the plurality of transmission occasions, or the number of the plurality of transmission occasions.

In some embodiments, the at least one first reference signal transmitted at the plurality of transmission occasions are a same reference signal or different reference signals.

In some embodiments, the first device is a terminal device or a network device, and the second device is a terminal device or a network device.

In an aspect, it is proposed a first device comprising: a processor configured to cause the first device to: transmit, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In some embodiments, a transmission of the plurality of SRS resources or the plurality of CSI-RS resources is a one-time operation or is performed within a pre-determined duration.

In some embodiments, the index is comprised in uplink control information (UCI) or a medium access control (MAC) control element.

In an aspect, it is proposed a second device comprising: a processor configured to cause the second device to: transmit, to a first device, configuration information for a measurement report; and receive, from the first device, the measurement report comprising the following: an indication of a first resource, a first group of amplitude coefficients associated with a first group of resources, and a first group of phase coefficients associated with the first group of resources, wherein the first group of resources is determined based on the first resource, and wherein the first resource or a resource in the first group of resources corresponds to with one of the following: a channel state information (CSI) -reference signal (RS) resource, a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or a spatial-related vector.

In some embodiments, the first resource and the at least part of the resources are associated with a same polarization direction.

In some embodiments, the first group of resources is determined based on the first resource and at least one of the following: a pre-defined rule, the number of resources in the first group of resources, a first value of the first parameter of antenna port configuration in a first dimension, or a second value of the second parameter of antenna port configuration in a second dimension.

In some embodiments, the first resource is associated with a first index value, and wherein, if the first group of resources comprise a second resource, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, or the second index value of the second resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource and a third resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, and a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, and a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension or minus a fourth offset associated with a second dimension; if the first group of resources comprise a second resource, a third resource and a fourth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, and a fourth index value is the first index value plus a third offset or minus a fourth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a fifth offset associated with a second dimension, and a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, if the first group of resources comprise a second resource, a third resource, a fourth resource and a fifth resource, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset associated with a first dimension, and a fifth index value of the fifth resource is the first index value minus a sixth offset associated with a first dimension, a second index value of the second resource is the first index value plus a third offset associated with a second dimension, a third index value of the third resource is the first index value minus a fourth offset associated with a second dimension, a fourth index value is the first index value plus a seventh offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset or minus a second offset associated with a first dimension, a third index value of the third resource is the first index value plus a third offset associated with a second dimension, a fourth index value of the fourth resource is the first index value minus a fourth offset associated with a second dimension, and a fifth index value is the first index value plus a seventh offset or minus an eighth offset associated with a second dimension, a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a third offset associated with a second dimension, and a fifth index value of the fifth resource is the first index value minus a fourth offset associated with a second dimension, or a second index value of the second resource is the first index value plus a first offset associated with a first dimension, a third index value of the third resource is the first index value minus a second offset associated with a first dimension, a fourth index value is the first index value plus a fifth offset or minus a sixth offset associated with a first dimension, a fifth index value of the fifth resource is the first index value plus a third offset or minus a fourth offset associated with a second dimension.

In an aspect, it is proposed a second device comprising: a processor configured to cause the second device to: transmit, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions; transmit, based on the antenna information, the at least one first reference signal to the first device; and receive, from the first device, at least one of the following: at least one second reference signal with a spatial domain transmission filter, or a vector, wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following: the antenna information, or a combination of the at least one first reference signal on the plurality of transmission occasions.

In some embodiments, the processor is further caused to: receive from the first device, an antenna structure of the first device.

In some embodiments, the antenna information comprises at least one of the following: an interval between antennas for the plurality of transmission occasions, or the number of the plurality of transmission occasions.

In an aspect, it is proposed a second device comprising: a processor configured to cause the second device to: receive, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and perform at least one of the following: receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.

In an aspect, a first 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 first device discussed above.

In an aspect, a second 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 second device discussed above.

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 first device discussed above.

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 second device discussed above.

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 first device discussed above.

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 second device discussed above.

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.

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 14. 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.

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.

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.

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.

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 first device comprising:

a processor configured to cause the first device to:

receive, from a second device, configuration information for a measurement report; and

transmit, to the second device, the measurement report comprising the following:

an indication of a first resource,

a first group of amplitude coefficients associated with a first group of resources, and

a first group of phase coefficients associated with the first group of resources,

wherein the first group of resources is determined based on the first resource,

and wherein the first resource or a resource in the first group of resources corresponds to one of the following:

a channel state information (CSI) -reference signal (RS) resource,

a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or

a spatial-related vector.
The first device of claim 1, wherein resources in the first group of resources and the first resource are adjacent in spatial domain.
The first device of claim 1, wherein the number of resources in the first group of resources is defined as a default number, configured by the second device, or reported by the first device.
The first device of claim 1, wherein the first resource and at least part of the resources in the first group of resources support to be combined with the following:

amplitude information associated with the first resource and amplitude coefficients associated with the at least part of the resources, or

phase information associated with the first resource and phase coefficients associated with the at least part of the resources.
The first device of claim 4, wherein the first resource and the at least part of the resources correspond to with a same polarization direction.
The first device of claim 1, wherein the configuration information indicates a plurality of resources and/or adjacency relationships in spatial domain between resources in the plurality of resources,

and wherein,

the plurality of resources are associated with actual transmissions, or

the plurality of resources are determined based on a codebook-related configuration.
The first device of claim 1, wherein the configuration information indicates at least one of the following:

a first quantization size of the amplitude coefficients,

a second quantization size of the phase coefficients,

a first indication that the measurement report is associated with a first dimension,

a second indication that the measurement report is associated with a second dimension, or

a third indication that the measurement report is associated with the first and second dimensions.
The first device of claim 1, wherein the first group of resources is determined based on the first resource and at least one of the following:

a pre-defined rule,

the number of resources in the first group of resources,

a first value of a first parameter of antenna port configuration in a first dimension, or

a second value of a second parameter of antenna port configuration in a second dimension.
The first device of claim 1, wherein the measurement report further indicates at least one of the following:

a reference signal received power value of the first resource,

a set of time or doppler domain vectors,

a fourth indication indicating whether a measurement result combination of the first resource and the first group of resources is applied, or

a combined measurement result of the first resource and the first group of resources.
The first device of claim 9, wherein the measurement report further indicates at least one of the following:

a set identity of the set of resources,

a fifth indication indicating a resource in the set of the resources with the largest reference signal received power value, wherein the resource corresponds to the first resources,

a sixth indication indicating which resources in the first group of resources or in the set of resources are applied to a measurement result combination.
The first device of claim 10, wherein the sixth indication is a bitmap corresponding to the set of resources or the first group of resources, or the sixth indication is a specific value of the amplitude coefficient or the phase coefficient which implies that a corresponding resource is not applied to the measurement result combination.
The first device of claim 10, wherein the measurement report further indicates:

a further resource,

a further group of amplitude coefficients associated with a further group of resources, and

a further group of phase coefficients associated with the further group of resource,

and wherein the further group of resources is determined based on the further resource.
A first device comprising:

a processor configured to cause the first device to:

receive, from a second device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions;

receive, based on the antenna information, the at least one first reference signal from the second device; and

transmit, to the second device, at least one of the following:

at least one second reference signal with a spatial domain transmission filter, or

at least one vector,

wherein the spatial domain transmission filter and/or the at least one vector is determined based on at least one of the following:

the antenna information, or

a combination of at least one the first reference signal on the plurality of transmission occasions.
The first device of claim 13, wherein the processor is further caused to:

transmit, to the second device, an antenna structure of the first device.
The first device of claim 13, wherein the antenna information comprises at least one of the following:

an interval between antennas for different occasions of the plurality of transmission occasions, or

the number of the plurality of transmission occasions.
A first device comprising:

a processor configured to cause the first device to:

transmit, to a second device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and

perform at least one of the following:

transmitting, to the second device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or

receiving, from the second device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.
The first device of claim 16, wherein a transmission of the plurality of SRS resources or the plurality of CSI-RS resources is a one-time operation or is performed within a pre-determined duration.
A second device comprising:

a processor configured to cause the second device to:

transmit, to a first device, configuration information for a measurement report; and

receive, from the first device, the measurement report comprising the following:

an indication of a first resource,

a first group of amplitude coefficients associated with a first group of resources, and

a first group of phase coefficients associated with the first group of resources,

wherein the first group of resources is determined based on the first resource,

and wherein the first resource or a resource in the first group of resources corresponds to with one of the following:

a channel state information (CSI) -reference signal (RS) resource,

a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource, or

a spatial-related vector.
A second device comprising:

a processor configured to cause the second device to:

transmit, to a first device, antenna information used by the second device for transmitting at least one first reference signal, wherein the at least one first reference signal is associated with at a plurality of transmission occasions;

transmit, based on the antenna information, the at least one first reference signal to the first device; and

receive, from the first device, at least one of the following:

at least one second reference signal with a spatial domain transmission filter, or

a vector,

wherein the spatial domain transmission filter and/or the vector is determined based on at least one of the following:

the antenna information, or

a combination of the at least one first reference signal on the plurality of transmission occasions.
A second device comprising:

a processor configured to cause the second device to:

receive, from a first device, an index of a channel state information (CSI) -reference signal (RS) resource or a synchronization signal and physical broadcast channel (PBCH) block (SSB) resource; and

perform at least one of the following:

receiving, from the first device, a plurality of sounding reference signal (SRS) resources by using a spatial domain transmission filter based on reception of the CSI-RS resource or the SSB resource, or

transmitting, to the first device, a plurality of CSI-RS resources with an assumption of quasi co-located with the CSI-RS resource or the SSB resource.