Timing adjustment for measurements

Abstract

The embodiment of the invention relates to a method, equipment and device for timing adjustment of measurement and a computer readable storage medium. In one method, a first device receives, from a second device, information regarding a timing adjustment of a reception timing of a reference signal from a third device. A first device determines a reception timing of a reference signal. The first device adjusts the reception timing of the reference signal based on the information. The first device performs at least one measurement of the reference signal based on the adjusted reception timing.

Description

Technical Field

[0001] Various example embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly to methods, devices, apparatuses, and computer-readable storage media for timing adjustment of measurements. Background Art

[0002] In some communication systems such as fifth generation (5G) new radio (NR) systems, various duplex modes are supported. For example, frequency division duplex (FDD) for paired frequency bands and time division duplex (TDD) for unpaired frequency bands are supported. In TDD, time domain resources are divided between downlink (DL) and uplink (UL). Allocating a limited duration for the uplink in TDD may result in reduced coverage, increased latency, and reduced capacity. To address these issues, evolution of duplex operation has been proposed. Among some mechanisms, subband non-overlapping full duplex (SBFD) such as simultaneous DL and UL transmission on different physical resource blocks (PRBs) or subbands within an unpaired wideband NR cell has been proposed. SBFD introduces various cross-link interferences (CLI) in SBFD operation. How to perform CLI measurements in SBFD has become a matter of concern. Summary of the Invention

[0003] In a first aspect of the present disclosure, a first apparatus is provided. The first apparatus includes: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to at least: receive information from a second apparatus regarding a timing adjustment for receiving a reference signal from a third apparatus; determine the receiving timing of the reference signal; adjust the receiving timing of the reference signal based on the information; and perform at least one measurement of the reference signal based on the adjusted receiving timing.

[0004] In a second aspect of the present disclosure, a second device is provided. The second device includes: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least: send information regarding a timing adjustment of a reception timing of a reference signal from a third device to a first device; and receive at least one measurement result of at least one measurement of the reference signal from the first device, the at least one measurement being performed by the first device based on the adjusted reception timing of the reference signal.

[0005] In a third aspect of the present disclosure, a method is provided. The method includes: receiving, at a first device, information from a second device regarding a timing adjustment of a receive timing of a reference signal from a third device; determining the receive timing of the reference signal; adjusting the receive timing of the reference signal based on the information; and performing at least one measurement of the reference signal based on the adjusted receive timing.

[0006] In a fourth aspect of the present disclosure, a method is provided. The method includes: transmitting, at a second device, information regarding a timing adjustment of a reception timing of a reference signal from a third device to a first device; and receiving, from the first device, at least one measurement result of at least one measurement of the reference signal, the at least one measurement performed by the first device based on the adjusted reception timing of the reference signal.

[0007] In a fifth aspect of the present disclosure, a first apparatus is provided. The first apparatus includes: means for receiving, from a second apparatus, information regarding a timing adjustment of a receive timing of a reference signal from a third apparatus; means for determining the receive timing of the reference signal; means for adjusting the receive timing of the reference signal based on the information; and means for performing at least one measurement of the reference signal based on the adjusted receive timing.

[0008] In a sixth aspect of the present disclosure, a second apparatus is provided. The second apparatus includes: means for sending information regarding a timing adjustment of a reception timing of a reference signal from a third apparatus to a first apparatus; and means for receiving, from the first apparatus, at least one measurement result of at least one measurement of the reference signal, the at least one measurement being performed by the first apparatus based on the adjusted reception timing of the reference signal.

[0009] In a seventh aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, wherein the instructions are used to cause a device to execute the method according to the third or fourth aspect.

[0010] It should be understood that the invention summary is not intended to identify the key or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0012] Figure 1 An example communication environment is shown in which example embodiments of the present disclosure may be implemented;

[0013] Figure 2A An example diagram showing frequency-time resource partitioning for FDD is shown;

[0014] Figure 2B An example diagram showing frequency-time resource partitioning for TDD is shown;

[0015] Figure 2CAn example diagram showing frequency-time resource partitioning for SBFD is shown;

[0016] Figure 2D Shows examples of SBFD time slots and non-SBFD time slots;

[0017] Figure 3A Several examples of co-channel cross-link interference types in SBFD deployments are shown;

[0018] Figure 3B shows additional examples of co-channel cross-link interference types in SBFD deployments;

[0019] Figure 3C An example of User Equipment (UE) to UE Demodulation Reference Signal (DMRS) CLI measurement timing is shown;

[0020] Figure 4 shows a signaling flow for timing adjustment of measurements according to some example embodiments of the present disclosure;

[0021] Figure 5 shows an example diagram of intra-cell UE-to-UE CLI according to some example embodiments of the present disclosure;

[0022] Figure 6A An example of timing adjustment for UEs in different beams according to some example embodiments of the present disclosure is shown;

[0023] Figure 6B An example of timing adjustment for UEs in the same beam according to some example embodiments of the present disclosure is shown;

[0024] Figure 6C Another example of timing adjustment for UEs in the same beam according to some example embodiments of the present disclosure is shown;

[0025] Figure 7 Timing adjustments at the UE level and the cell level according to some example embodiments of the present disclosure are shown;

[0026] Figure 8 A flowchart illustrating a method implemented at a first device according to some example embodiments of the present disclosure is shown;

[0027] Figure 9 A flowchart illustrating a method implemented at a second device according to some example embodiments of the present disclosure is shown;

[0028] Figure 10 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0029] Figure 11A block diagram of an example computer-readable medium is shown, according to some example embodiments of the present disclosure.

[0030] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0031] The principles of the present disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are intended for illustrative purposes only and are intended to assist those skilled in the art in understanding and implementing the present disclosure without implying any limitation on the scope of the present disclosure. The embodiments described herein can be implemented in various ways different from those described below.

[0032] 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 skill in the art to which this disclosure belongs.

[0033] References in this disclosure to "one embodiment," "an embodiment," "an example embodiment," etc., indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Furthermore, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is understood that it is within the knowledge of those skilled in the art to incorporate such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described.

[0034] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the example embodiments. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0035] As used herein, “at least one of: ” and “” and similar expressions, where a list of two or more elements is connected by “and” or “or”, means at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0036] As used herein, unless explicitly stated, performing a step "in response to A" does not mean that the step must be performed immediately after "A" occurs, but may include one or more intervening steps.

[0037] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the example embodiments. As used herein, unless the context clearly indicates otherwise, the singular forms "a," "an," and "the" are intended to include the plural forms as well. It should also be understood that the terms "comprising," "having," and "including" when used herein specify the presence of the features, elements, and / or components, etc., but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0038] As used in this application, the term "circuitry" may refer to one or more or all of the following: (a) hardware circuit implementation only (such as implementation only in analog and / or digital circuits), and (b) a combination of hardware circuitry and software, such as (if applicable): (i) a combination of analog and / or digital hardware circuitry and software / firmware, and (ii) a hardware processor (including a digital signal processor) with software, any portion of software and memory that work together to enable a device (such as a mobile phone or server) to perform various functions, and (c) a hardware circuit and / or processor, such as a microprocessor or portion of a microprocessor, that requires software (e.g., firmware) to operate, but the software may be absent when it is not required for operation.

[0039] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit, or a processor (or multiple processors), or a portion of a hardware circuit or processor and its accompanying software and / or firmware. For example, if applicable to the particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0040] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), High Speed Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal device and the network equipment in the communication network can be performed according to any suitable generation communication protocol, including but not limited to first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G) communication protocols and / or any other protocol currently known or developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communications, there are of course future types of communication technologies and systems that can implement the present disclosure. It should not be considered that the scope of the present disclosure is limited to the above-mentioned systems.

[0041] As used herein, the term "network device" or "network access device" refers to a node in a communication network via which a terminal device accesses the network and receives services from it. A network device may refer to a base station (BS) or an access point (AP), such as a NodeB (NodeB or NB), an evolved NodeB (eNodeB or eNB), an NR NB (also known as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, an integrated access and backhaul (IAB) node, a low-power node (such as a femto, a pico), a non-terrestrial network (NTN) or non-terrestrial network equipment (such as satellite network equipment, low earth orbit (LEO) satellites and geosynchronous earth orbit (GEO) satellites, aircraft network equipment, etc.), depending on the terminology and technology applied. In some example embodiments, the radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at an IAB donor node. The IAB node includes a mobile terminal (IAB-MT) part that behaves like a UE towards the parent node, and the DU part of the IAB node behaves like a base station towards the next-hop IAB node.

[0042] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, a terminal device may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS) or access terminal (AT). Terminal devices may include, but are not limited to, mobile phones, cellular phones, smart phones, voice over IP (VoIP) phones, wireless local loop phones, tablet computers, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), game terminal devices, music storage and playback devices, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEEs), laptop mounted devices (LMEs), USB dongles, smart devices, wireless customer premises equipment (CPEs), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, devices operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) portion of an IAB node (eg, a relay node).In the following description, the terms "terminal device," "communication device," "terminal," "user equipment," and "UE" may be used interchangeably.

[0043] As used herein, the terms "resource," "transmission resource," "resource block," "physical resource block" (PRB), "uplink resource," or "downlink resource" may refer to any resource used to perform communication (e.g., communication between a terminal device and a network device), such as a resource in the time domain, a resource in the frequency domain, a resource in the spatial domain, a resource in the code domain, or any other resource that enables communication. Hereinafter, unless explicitly stated otherwise, resources in the frequency domain and the time domain will be used as examples of transmission resources for describing some example embodiments of the present disclosure. Note that the example embodiments of the present disclosure are equally applicable to other resources in other domains.

[0044] As briefly mentioned above, various duplex modes such as FDD and TDD are supported in communication networks. In TDD, time domain resources are divided between downlink (DL) and uplink (UL). Allocating a limited duration for the uplink in TDD may result in reduced coverage, increased latency, and reduced capacity. In order to address these challenges, simultaneous DL and UL transmission on different PRBs or subbands within an unpaired broadband NR cell is proposed. As used herein, the set of PRBs allocated to a specific link direction is called a subband, and this new duplexing method is called "SBFD". As used herein, the term "SBFD" may also be referred to as cross-division duplexing (xDD) or flexible division duplexing (FDU).

[0045] The following will refer to Figures 1 to 11 The principles and implementations of the present disclosure are described in detail. Figure 1 An example communication environment 100 is shown in which example embodiments of the present disclosure may be implemented. In the communication environment 100, multiple communication devices (including a first device 110, a second device 120, and a third device 130) may communicate with each other. In some example embodiments, additional devices may be present in the communication environment, such as a fourth device 140. The fourth device 140 may communicate with the second device 120.

[0046] The communication environment 100 may support various duplex modes, such as FDD and TDD. In some example embodiments, SBFD may be supported by the first device 110, the second device 120, and the third device 130.

[0047] In some example embodiments, if first device 110 and third device 130 are terminal devices, and second device 120 is a network device serving the terminal devices, the link from second device 120 to first device 110 (or third device 130) is referred to as a downlink (DL), and the link from first device 110 (or third device 130) to second device 120 is referred to as an uplink (UL). In the DL, second device 120 is a transmitting (TX) device (or transmitter), and first device 110 (or third device 130) is a receiving (RX) device (or receiver). In the UL, first device 110 (or third device 130) is a TX device (or transmitter), and second device 120 is an RX device (or receiver).

[0048] In some example embodiments, if first device 110 and third device 130 are in SBFD mode, assuming that transmissions from third device 130 to second device 120 and transmissions from second device 120 to first device 110 are in SBFD, first device 110 may be referred to as a "victim device" or "victim device," and third device 130 may be referred to as an "attacker device" or "attacker device." In embodiments where the first and third devices are terminal devices or UEs, first device 110 may be referred to as a "victim terminal device" or "victim UE," and third device 130 may be referred to as an "attacker terminal device" or "attacker UE."

[0049] In some example embodiments, there may be more than one victim device or more than one attacker device. For example, the fourth device 140 may be another victim device of the attacker third device 130. For another example, the fourth device 140 may be another attacker device of the victim first device 110.

[0050] It should be understood that the roles of these devices can vary. For example, in a first time period, first device 110 may be a victim device, while third device 130 may be an aggressor device. In a different second time period, first device 110 may become an aggressor device, while third device 130 or fourth device 140 may become a victim device. In a third time period, if second device 120 performs an uplink transmission and first device 110 does not perform any downlink or uplink transmission, first device 110 may be referred to as a listening device. As used herein, a listening device may be a listening terminal device or a listening UE.

[0051] It should be understood that Figure 1 The number of devices and their connections shown in FIG. 1 is for illustrative purposes only and does not imply any limitation. Communication environment 100 may include any suitable number of devices configured to implement example embodiments of the present disclosure.

[0052] Hereinafter, for the purpose of illustration, some example embodiments are described as follows: first device 110 operates as a first terminal device, second device 120 operates as a network node (also referred to as a network device), and third device 130 operates as a second terminal device. However, in some example embodiments, the operations described in conjunction with the terminal device may be implemented at a network node or other device, and the operations described in conjunction with the network node may be implemented at a terminal device or other device.

[0053] Furthermore, for illustrative purposes, some example embodiments are described as follows: first device 110 operates as a victim UE or an intercepting UE, and third device 130 operates as an attacker UE. However, in some example embodiments, the operations described in conjunction with the victim UE or intercepting UE may be implemented at an attacker UE or other device, and the operations described in conjunction with the attacker UE may be implemented at a victim UE, an intercepting UE, or other device.

[0054] Communications in the communication environment 100 may be implemented according to any suitable communication protocol, including but not limited to first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G), etc. cellular communication protocols, wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc., and / or any other protocol currently known or developed in the future. In addition, communications may utilize any suitable wireless communication technology, including but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), and / or any other technology currently known or developed in the future.

[0055] As discussed, various duplex modes such as FDD and TDD are supported. Figure 2A An example diagram 210 of frequency-time resource partitioning for FDD is shown. As shown, the resources used for DL transmission and UL transmission can be divided by frequency. That is, DL transmission and UL transmission use resources in different frequency sub-bands.

[0056] Figure 2B An example diagram 230 of frequency-time resource partitioning for TDD is shown. As shown, the resources used for DL transmission and UL transmission can be divided by time. That is, DL transmission and UL transmission use resources corresponding to different time slots.

[0057] Figure 2C An example diagram 250 of frequency-time resource partitioning for SBFD is shown. As shown, in SBFD, simultaneous DL and UL transmissions on different PRBs or subbands are supported. Each subband used for DL transmission does not overlap with a subband used for UL transmission.

[0058] In some example embodiments, multiple time slots supporting SBFD may be divided into two time slot types: an SBFD time slot type and a non-SBFD time slot type. As used herein, the term "SBFD time slot" refers to a time slot during which both non-overlapping DL subbands and UL subbands exist. As used herein, the term "non-SBFD time slot" refers to a time slot during which the entire frequency band is used for DL or UL. Non-SBFD time slots may also be referred to as legacy time slots or full DL / UL time slots. Figure 2D 2 is an example diagram illustrating a plurality of time slots including an SBFD time slot 270 and non-SBFD time slots 260 and 280 .

[0059] Several SBFD operation modes have been studied, including whether the time and frequency locations of the subbands used for SBFD operation are known to SBFD-aware UEs. However, in the Third Generation Partnership Project (3GPP) Radio Access Network (RAN) 1#110 meeting, it was agreed that the operation mode with at least the time and frequency locations of the subbands for SBFD operation known to SBFD-aware UEs is prioritized. This means that the SBFD time slots should be known to (SBFD-aware) UEs in one way or another.

[0060] SBFD introduces several new types of CLI, such as co-channel inter-sub-band CLI from non-overlapping frequency resources. According to the source of interference, the interference can be better classified. Figure 3A Several examples of co-channel cross-link interference types in an SBFD deployment are shown. As shown, UE 310 and UE 330 are served by gNB 320, and UE 340 and UE 360 are served by gNB 350. At the time shown, UE 310 performs an UL transmission to gNB 320, and UE 330 receives a DL transmission from gNB 320. Similarly, UE 340 sends an UL transmission to gNB 350, and UE 360 receives a DL transmission from gNB 360. It is assumed that the same frequency domain partitioning can be applied in the SBFD deployment.

[0061] exist Figure 3A In an environment where the co-channel inter-subband CLI from non-overlapping frequency resources may include gNB self-interference between the DL and UL. The co-channel inter-subband CLI from non-overlapping frequency resources may also include intra-cell UE-to-UE co-channel inter-subband CLI between UE 310 and UE 330. In addition, the co-channel inter-subband CLI from non-overlapping frequency resources may include inter-cell UE-to-UE co-channel inter-subband CLI, such as CLI between UE 330 and UE 340, and gNB-to-gNB co-channel inter-subband CLI between gNB 320 and gNB 350.

[0062] In case of different frequency domain partitioning in neighboring cells, the system may also suffer from co-channel CLI from overlapping frequency resources. Figure 3B Another example of a co-channel CLI type in an SBFD deployment is shown. Figure 3B In the figure, it is assumed that gNB 320 and gNB 350 can apply different frequency domain partitions. As shown in the figure, the environment or system may suffer from gNB-to-gNB inter-cell co-channel CLI from overlapping frequency resources and UE-to-UE inter-cell co-channel CLI from overlapping frequency resources.

[0063] Already combined Figure 3A and Figure 3B Several examples of CLI in SBFD operation are described. The importance of these new interference types has been extensively studied through system-level simulations during 3GPP study projects. In this disclosure, we focus on UE-to-UE CLI, especially intra-cell UE-to-UE co-channel inter-subband CLI.

[0064] Several studies and experiments have been conducted on the DL UE throughput for urban macro scenarios with SBFD. In such scenarios, UEs are dropped in restricted areas (such as clusters) so that UE-to-UE CLI exists. Comparing the DL user perceived throughput (UPT) for SBFD and TDD with different configurations, it was detected that the DL throughput (such as UPT) for SBFD with any SBFD configuration is lower than the DL throughput of static TDD. The DL performance degradation is particularly evident at the lower percentile DL average UPT, such as the fifth percentile DL average UPT, which represents UEs deployed at the cell edge. That is, in the case where a cell edge UE is transmitting at high transmit power while another (e.g., nearby) cell edge UE is receiving in DL, the CLI level may be quite high and significantly affect the DL throughput of the cell edge UE.

[0065] In some mechanisms, the serving gNB needs to be aware of the DL UE CLI conditions so that the gNB can apply CLI mitigation solutions. Therefore, CLI measurements are required for optimal SBFD operation. For example, UE-to-UE CLI measurements are required.

[0066] In some mechanisms, the UE may adjust its downlink reference timing to perform CLI measurements. For example, a UE capable of performing CLI measurements shall be able to measure the Sounding Reference Signal (SRS) Reference Signal Received Power (RSRP) and the CLI Received Signal Strength Indicator (RSSI) within the active DL bandwidth part (BWP). However, the measurement requirements apply only to TDD mode. Such CLI measurements are only applicable to frequencies within the RRC_CONNECTED frame: when the SRS-RSRP measurement resources are completely confined to the BW of the DL active BWP, and / or when the CLI-RSSI measurement resources are configured within the active BWP. When the UE measures SRS-RSRP and CLI-RSRP, a constant offset with respect to the downlink reference timing in the serving cell shall be applied. The constant offset value is derived by the UE implementation and shall be at least Tc*N TA_offset .

[0067] In some mechanisms, for dynamic TDD, UE timing adjustments for measuring UE-to-UE CLI are left to the UE implementation. Release 16 focuses on inter-cell UE-to-UE CLI, making it difficult to confirm or derive UE-to-UE timing because it requires additional inter-cell signaling. However, in SBFD, UE-to-UE CLI issues can also occur between UEs served by the same cell due to simultaneous transmission and reception at the gNB. For this type of interference, the gNB can assist in measuring timing.

[0068] Figure 3C An example of UE-to-UE demodulation reference signal (DMRS) CLI measurement timing is shown. Figure 3C gNB timing 370 and UE timing 380 are shown. Figure 3C In the description, it is assumed that UE1 is transmitting in the UL and is therefore considered the "aggressor UE" (from the CLI's perspective). Near UE1, UE2 is receiving in the DL and is therefore considered the "victim UE." UE3 and UE4 are also considered victim UEs, but due to the large distance between UE3 / UE4 and UE1, the CLI is not expected to be very useful.

[0069] Figure 3C A UE-to-UE CLI measurement timing issue is shown, for example, for DMRS RSRP measurements. It will be appreciated that similar measurement timing issues may occur if SRS or any other suitable reference signal (RS) is used for CLI measurement purposes.

[0070] Due to the proximity between UE1 and UE2, the aggressor UE Tx timing is not aligned with the victim UE receive time (intra-cell). For example, victim UE2 is close to aggressor UE1. However, the actual DL Rx timing of the victim UE depends on the propagation delay between itself and its serving cell. If the UE2 DL Rx timing is not adjusted, several problems may occur. One problem may be that the UL DMRS transmitted at symbol #0 is lost at UE2, so an accurate RSRP CLI measurement cannot be performed.

[0071] A similar problem may occur with the UL DMRS sent at symbol #6. The victim UE will not be able to accurately measure the RSRP CLI at its symbol #6. Figure 3C As depicted in , the measurement is just made in symbol #5, i.e., a timing offset relative to the victim UE Rx timing should be applied.

[0072] This measurement misalignment may suggest that the reported RSRP CLI measurement infers that there is no CLI problem, when in fact there is a CLI problem. Similar problems occur for UE3 and UE4.

[0073] In order to solve at least part of the above problems or other potential problems, according to the present solution for timing adjustment of measurements in SBFD, a second device (e.g., a network device) sends the following information to a first device (e.g., a terminal device), which is about the timing adjustment of the reception timing of a reference signal from a third device (e.g., another terminal device). The first device determines the reception timing of the reference signal. The first device adjusts the reception timing of the reference signal based on the information. The first device performs at least one measurement of the reference signal based on the adjusted reception timing. In this way, more accurate measurement of the reference signal can be achieved. The first device can send at least one measurement result of the at least one measurement to the second device. Therefore, the second device can obtain a more accurate condition of the CLI between the first device and the third device. In an embodiment in which the first and third devices are in SBFD, such improved measurement can help improve SBFD operation.

[0074] Figure 4 FIG4 shows a signaling flow 400 for timing adjustment in SBFD according to some example embodiments of the present disclosure. The signaling flow 400 involves Figure 1 For the purpose of illustration, the first device 110 and the second device 120 will be combined Figure 1 A signaling flow 400 is described. For discussion purposes, some example embodiments are described in which the first apparatus 110 is implemented as a terminal device and the second apparatus 120 is implemented as a network device.

[0075] Assume that in the signaling flow 400, the SBFD mode is enabled or initiated. For example, the second device 120 may send (410) an SBFD configuration to the first device 110. The first device 110 may receive (415) the SBFD configuration. The SBFD configuration may indicate an SBFD time slot or symbol and / or a non-SBFD time slot or symbol. The SBFD configuration may also include an SBFD CLI measurement configuration. For example, the SBFD CLI measurement configuration may be sent via a system information block (SIB) or a radio resource control (RRC) or any other suitable signaling. As used herein, a device that receives an SBFD configuration may be referred to as an "SBFD" aware device. That is, the first device 110 is an SBFD aware device.

[0076] As examples, SBFD configurations may include, but are not limited to: a frequency band; a number of time slots or symbols and the location of the multiple time slots / symbols in a radio frame, wherein the frequency band is divided into multiple subbands and at least one subband is used for DL transmission and at least one subband is used for UL transmission (i.e., SBFD time slots / symbols); a number of time slots / symbols and the location of the multiple time slots / symbols in a radio frame, wherein the entire frequency band is used for DL transmission, UL transmission, or flexible transmission (i.e., non-SBFD time slots / symbols); or some CLI RSSI measurement and reporting configurations. It should be understood that these parameters or configurations are for discussion purposes only. SBFD configurations may include any suitable parameters or configurations. The scope of the present disclosure is not limited in this regard.

[0077] In operation, the second device 120 sends (440) information regarding a timing adjustment for receiving a reference signal from the third device 130. The first device 110 receives (445) the information. As an example, the information may be sent via downlink control information (DCI), a medium access control (MAC) control element (CE), or any other suitable signaling or message. As used herein, information regarding timing adjustment may also be referred to as "timing adjustment information."

[0078] It should be understood that in some example embodiments, the second device 120 may transmit a set of information regarding timing adjustments to multiple reception timings of multiple reference signals from multiple devices. Each piece of information may be associated with a corresponding device (such as a corresponding attacker device). The information sets may be transmitted in combination or individually.

[0079] In some example embodiments, it is assumed that, for a certain duration, such as one or more SBFD time slots, third device 130 transmits an uplink transmission to second device 120, while first device 110 receives a downlink transmission from second device 120. That is, the transmission from second device 120 to first device 110 and the transmission from third device 130 to second device 120 may be SBFD in these SBFD time slots. Alternatively, in some example embodiments, it may be assumed that third device 130 transmits an uplink transmission to second device 120, while first device 110 does not perform any DL reception or UL transmission.

[0080] In some example embodiments, the reference signal from third apparatus 130 may be a DMRS, an SRS, or any other suitable reference signal. For purposes of illustration, some example embodiments will be described with the reference signal from third apparatus 130 being a DMRS.

[0081] The first device 110 determines (450) a reception timing of a reference signal from the third device 130. The first device 110 adjusts (460) the reception timing of the reference signal based on the information received (445) from the second device 120.

[0082] Based on the adjusted reception timing of the reference signal, the first device 110 performs (465) at least one measurement of the reference signal. For example, the first device 110 can measure the RSRP or other signal quality of the reference signal (such as the DMRS from the third device 130). In this way, measurements such as intra-cell UE-to-UE co-channel inter-subband CLI measurements can be improved.

[0083] Alternatively or additionally, in some example embodiments, first device 110 may measure the SRS RSRP of third device 130. SRS-RSRP is defined as the linear average of the power contributions (in watts (W)) of resource elements carrying SRS. During the configured measurement time occasions, SRS RSRP should be measured on the configured resource elements within the considered measurement frequency bandwidth.

[0084] For frequency range 1, the reference point for SRS-RSRP will be the antenna connector of the first device 110. For frequency range 2, SRS-RSRP should be measured based on the combined signals from the antenna elements corresponding to a given receiver branch. For frequency ranges 1 and 2, if the first device 110 uses receiver diversity, the reported SRS-RSRP value should not be lower than the corresponding SRS-RSRP of any individual receiver branch. SRS RSRP measurements can be applied to frequencies within the RRC_CONNECTED frame.

[0085] The first device 110 may send (470) at least one measurement result of at least one measurement to the second device 120. The second device 120 receives (475) the at least one measurement result. For example, the victim SBFD-aware UE may report CLI based on DMRS RSRP or SRS RSRP. With accurate measurement results, the second device 120 may know the CLI conditions between the devices. For example, the network node may know the UL CLI conditions between UEs in SBFD mode. Therefore, the network node may apply an appropriate CLI mitigation scheme. Therefore, SBFD operation may be improved.

[0086] As described, the second device 120 notifies the first device 110 of information regarding the timing adjustment. In some example embodiments, the information may include a value for the timing adjustment. As used herein, the term "value for the timing adjustment" may be referred to as a "timing adjustment value" or a "timing offset value." The first device 110 may simply apply the value to adjust (460) the reception timing of the reference signal. In this case, the value for the timing adjustment may be determined (435) by the second device 120. Figure 5 and Figures 6A to 6C Describes details about determining the value of the timing adjustment.

[0087] Alternatively or additionally, in some example embodiments, the information may not include a timing adjustment value. Instead, the information may include other parameters or values used to determine the timing adjustment value. The first device 110 may determine (455) a value based on the information.

[0088] In some example embodiments, the information may include a first timing advance (TA) value of the third device 130 relative to the second device 120. For example, the first TA value may be a value configured by the second device 120 for the third device 130 to adjust the timing difference between the second device 120 and the third device 130. As used herein, the first TA value may be referred to as the TA value of the third device 130. In some example embodiments, the information may include a second timing advance (TA) value for communication between the first device 110 and the second device 120. As used herein, the second TA value may be referred to as the TA value of the first device 110.

[0089] The first device 110 may determine (455) the value based at least in part on at least one of: the first timing advance value or the second timing advance value. As an example, if the first device 110 is further away from the second device 120, such as a serving cell of the second device, the first device 110 may determine the first timing advance value of the third device 130 as the timing adjustment value. For another example, if the third device 130 is further away from the serving cell of the second device 120, the first device 110 may determine the second timing advance value as the timing adjustment value.

[0090] In some example embodiments, the information may further include an angle difference between a first beam associated with first device 110 and second device 120 and a second beam associated with second device 120 and third device 130. For example, the first beam may be a beam from second device 120 toward first device 110, and the second beam may be a beam from second device 120 toward third device 130. Alternatively, in another example, the first beam may be a beam from first device 110 toward second device 120, and the second beam may be a beam from third device 130 toward second device 120.

[0091] As used herein, a first beam associated with the first device 110 and the second device 120 may also be referred to as a beam of the first device 110, and a second beam associated with the second device 120 and the third device 130 may also be referred to as a beam of the third device 130. In the following description, for illustrative purposes, some embodiments are described in which the first beam is a beam from the second device 120 toward the first device 110, and the second beam is a beam from the second device 120 toward the third device 130.

[0092] Alternatively, in some example embodiments, the information may include beam information of the second beam. For example, the beam information of the second beam may be a beam index of the second beam or angle information of the second beam. First device 110 knows the beam information of the first beam associated with first device 110. First device 110 may determine the angular difference between the second beam and the first beam based on the received beam information of the second beam.

[0093] Using the angle difference between the first beam and the second beam or the beam information of the second beam, the first device 110 may further determine (455) a timing adjustment value based on the angle difference or the beam information. Figure 5 Describing an embodiment of determining a timing adjustment value, Figure 5 An example diagram 500 of intra-cell UE-to-UE CLI is shown according to some example embodiments of the present disclosure.

[0094] exist Figure 5 In the example shown in FIG5 , first device 110 may be implemented as UE2 520, a victim UE; second device 120 may be implemented as gNB 540; and third device 130 may be implemented as UE1 510, an aggressor UE. In this example, another victim UE3 530 is also present in the environment. Beam 525 is from gNB 540 to UE2 520. Beam 515 is from gNB 540 to UE1 510. Beam 535 is from gNB 540 to UE3 530.

[0095] As depicted, the timing adjustment value of the victim UE2 520 may be determined based on the offset between the timing advance values of UE1 510 and UE2 520, which may be referred to as “ΔT 1-2 In some example embodiments, the value ΔT may be determined based on the TA value of UE2 520 (ie, TA2), the TA value of UE1 510 (ie, TA1), and the angular difference between beam 515 and beam 525. 1-2 or value The TA value of UE1 510 may represent 2*propagation delay or 2*distance between gNB 540 and attacker UE1 510. For UE3 530, a similar offset value “ΔT” may be determined in a similar manner. 1-3 "or

[0096] In some example embodiments, the value It can be determined by: Wherein, TA1 represents the TA value of UE1 510 relative to gNB 540, TA2 represents the TA value of UE2 520 relative to gNB 540, and θ represents the angle difference between beam 515 and beam 525.

[0097] based on The timing adjustment value for the victim UE2 520 may be determined as follows:

[0098] In some example embodiments, if UE1 510 and UE2 520 are served in the same beam, ie, the angle difference θ is 0 degrees, the timing adjustment value may be determined as If TA2 is greater than TA1, the timing adjustment value may be determined as TA1. Otherwise, if TA2 is less than TA1, the timing adjustment value may be calculated as TA2. It should be understood that the TA value of a UE relative to a gNB is generally associated with the distance between the UE and the gNB. If UE2 520 is further away from gNB 540 (or the serving cell of gNB 540), TA2 of UE2 520 is greater than TA1, and thus the timing adjustment value for UE2 520 may be TA1. Otherwise, if UE1 510 is further away from gNB 540 or the serving cell, TA1 may be greater than TA2, and thus the timing adjustment value for UE2 520 may be TA2.

[0099] Combine Figure 5Several example embodiments are described for determining a timing adjustment value based on at least one of the TA value of the first device 110, the TA value of the third device 130, the angle difference between the beams of the first device 110 and the third device 130, or the beam information of the third device 130. It should be understood that the determination can be made by the first device 110 and / or the second device 120. For example, Figure 5 The first device 110 of the UE 2520 in the embodiment may determine the timing adjustment value based on parameters such as TA1, TA2 or θ included in the received information. For another example, such as Figure 5 The second device 120 of the gNB 540 in the can determine (435) the timing adjustment value in a similar manner and then indicate the value to the first device 110 via information.

[0100] Since the TA value of the UE can be associated with the distance between the UE and the gNB, the timing adjustment value can also be determined based on the distance between the UE and the gNB. Figure 4 In some example embodiments, the information received (445) may include a first distance between the third device 130 and the second device 120. Alternatively or additionally, in some example embodiments, the information may include a second distance between the third device 130 and the first device 110.

[0101] Based on the first distance and / or the second distance, the first device 110 may determine (455) a timing adjustment value. In an example embodiment, the information includes the second distance. The first device 110 may know its own distance to the second device 120 (referred to as a third distance) and its own TA value (e.g., configured by the second device 120 for communication). The first device 110 may determine (455) the timing adjustment value based on the second distance and a ratio between the TA value of the first device 110 and the third distance.

[0102] In embodiments where the information includes a first distance between the third device 130 and the second device 120, the determination of the timing adjustment value can be similar. The first device 110 can determine a second distance between the third device 130 and the first device 110 based on the first distance and the third distance, and then determine the timing adjustment value based on the second distance. The second distance can be determined based on the first distance, the third distance, and the angular difference between the first beam of the first device 110 and the second beam of the third device 130 by using a trigonometric function such as the law of cosines or other suitable function, which will not be further described herein. If the first device 110 and the third device 130 are associated with the same beam, for example, served by the same beam, the second distance can be simply determined as the difference between the first distance and the third distance.

[0103] It should be understood that in embodiments where the information includes a second distance between the third device 130 and the first device 110 , the second distance may be determined by the second device 120 based on the first distance and the third distance in a similar manner.

[0104] As described, the information may include information elements such as at least one of the attacker device's TA value, the attacker device's beam information, or the attacker device's distance information. Using the attacker device information, the victim device may perform timing adjustment on the reception timing of the reference signal from the attacker device. In other words, in an SBFD network, the SBFD sensing UE receives in-cell attacker UE information to assist in CLI measurement timing adjustment. This information may take the form of attacker UE timing advance details and the angle difference between the beams served by the attacker and victim UEs, or the attacker UE distance to the serving cell and the beam used to serve the attacker UE.

[0105] After receiving this information from the network (or serving cell), the victim SBFD-aware UE can calculate the distance or timing offset (also called timing adjustment value) between them and the aggressor UE. The victim UE can adjust its baseline DL Rx timing to accurately measure the reference signal RSRP and report it to the network.

[0106] Alternatively, the network itself can calculate the timing offset between the attacker UE and the victim UE, since the angle and timing advance of each serving UE are known to the network. The network then sends the timing offset or distance offset information to the victim UE. In an example embodiment, the timing offset can be in the form of a second TA for the victim UE. The victim UE can apply the first (or old) TA for transmission / reception with the serving cell and the second TA for measuring the intra-cell UE-to-UE CLI.

[0107] Various example embodiments of information and timing adjustment based on the information have been described. It should be understood that the information may include one or more of the aforementioned parameters or values, and may also include any other suitable parameters for timing adjustment. It should also be understood that the methods for determining or calculating timing adjustment values are for illustrative purposes only, and any other suitable calculation function or method may be used. The scope of the present disclosure is not limited thereby.

[0108] Figures 6A to 6C Example diagrams 600, 630, and 660 respectively illustrate timing adjustments for a first device 110 (such as a victim UE). Figure 6A In the example of FIG, it is assumed that the attacker UE1 and the victim UE2 are in different beams. As shown in the figure, the timing adjustment value 605 is determined as That is, the UE2 receive (Rx) timing may be adjusted in advance based on the timing adjustment value 605 .

[0109] exist Figure 6B and Figure 6C In the example of , it is assumed that the attacker UE1 and the victim UE2 are in the same beam. Figure 6B In the example diagram 630, the victim UE2 is further away from the serving cell, and the timing adjustment value 635 can be determined to be TA1, as shown. That is, the UE2 Rx timing can be adjusted based on TA1. Figure 6C In the example diagram 660, the attacker UE1 is further away from the serving cell, and the timing adjustment value 665 can be determined to be TA2, as shown in the figure. That is, the UE2 Rx timing can be adjusted based on TA2. Figures 6A to 6C The embodiment of the present invention more intuitively describes the timing adjustment for the reception timing of the reference signal. As used herein, the timing adjustment value or timing offset determined by (1) and (2) and the timing adjustment value or timing offset determined by (1) and (2) are combined. Figures 6A to 6C Those timing adjustment values described may be referred to as "accuracy calculation timing adjustment values" or "accuracy calculation timing offsets."

[0110] It should be understood that although some example embodiments are described using a single attacker (such as third device 130), one or more attacker devices may be present in the environment. For example, fourth device 140 may also be an attacker device of first device 110. Second device 120 may also send timing adjustment information about fourth device 140 to first device 110. For example, second device 120 may send TA and / or beam angle information of fourth device 140 to first device 110. First device 110 may perform timing adjustment on the reception timing of the reference signal from fourth device 140.

[0111] There may be more than one victim device associated with third device 130. Second device 120 may also transmit timing adjustment information for receiving a reference signal from third device 130 to another victim device. That is, second device 120 may transmit at least one piece of information regarding at least one timing adjustment for receiving at least one reference signal from at least one aggressor device to at least one victim device. The number of victim devices and the number of aggressor devices are not limited.

[0112] Still refer to Figure 4Alternatively or additionally, in some example embodiments, the information may include a first value for a timing adjustment associated with a cell serving the third device 130 and a second value for a timing adjustment associated with the first device 110. In other words, the second device 120 may indicate to the first device 110 (or the first device 110 may receive) the configuration of cell-level timing adjustment and device-level (also known as UE-level or equipment-level) timing adjustment. For cell-level timing adjustment, downlink may refer to the transmit timing of the attacker (e.g., the third device 130). For device-level timing adjustment, downlink may refer to the receive timing of the victim (i.e., the first device 110).

[0113] In some example embodiments, first device 110 may determine a first adjusted receive timing for a reference signal based on the first value. First device 110 may perform (465) a first measurement of the reference signal based on the first adjusted receive timing. First device 110 may also determine a second adjusted receive timing for the reference signal based on the second value. First device 110 may perform (465) a second measurement of the reference signal based on the second adjusted receive timing. The first measurement or the second measurement may be, for example, a measurement of RSRP of a DMRS from third device 130.

[0114] In some example embodiments, the first value may be associated with a first timing advance value of third device 130 relative to second device 120. For example, the first value may be half of the TA value of third device 130. The second value may be associated with a second TA value used for communication between first device 110 and second device 120. For example, the second value may be a second TA value.

[0115] First device 110 may send (470) at least one of the following to second device 120: a first measurement result of the first measurement or a second measurement result of the second measurement. In some example embodiments, first device 110 may compare the two measurement results and report the worse result to second device 120. Alternatively, first device 110 may report both results to second device 120. By comparing the two measurement results, first device 110 and / or second device 120 may be aware of the accuracy impact (i.e., attacker impact) from third device 130.

[0116] In some example embodiments, the first value may be associated with a first timing advance value of third device 130 relative to second device 120. For example, the first value may be half of the TA value of third device 130. The second value may be associated with a second TA value used for communication between first device 110 and second device 120. For example, the second value may be a second TA value. The combination of the first timing adjustment and the second timing adjustment may be referred to as a "coarsely calculated timing adjustment" or a "coarsely calculated timing offset." With a coarse timing adjustment, fewer calculations may be performed.

[0117] It should be understood that in some example embodiments, there may be more than one aggressor device, such as multiple aggressor UEs for the first device 110. The second device 120 may send a configuration of multiple cell-level timing adjustment values, such as multiple aggressor UE TA values or multiple half TA values for multiple aggressor UEs.

[0118] Figure 7 Timing adjustments for UE level and cell level according to some example embodiments of the present disclosure are shown. Figure 7 gNB timing 700 and UE timing 710 are shown. As shown, the UL DMRS from UE1 (aggressor) is in symbols #0 and #7. For the second UL DMRS in symbol #7, cell-level channel state information (CSI) for interference measurement (CSI-IM) or zero-power (ZP) CSI-RS for UL RSRP is configured in DL symbol #7. A victim UE (e.g., UE2 close to UE1 and UE3 far from UE1) may need to measure DMRS RSRP on symbols (#7-TA1 / 2), where TA1 represents the TA value of the aggressor UE1. For example, UE2 may measure DMRS RSRP on symbol 720, and UE3 may measure DMRS RSRP on symbol 730 for cell-level CSI-IM.

[0119] For UE-level measurement, the UL second DMRS is symbol #7, and then the cell-level CSI-IM or ZP-CSI-RS for UL RSRP is configured in DL symbol #7. In this case, the victim UE needs to measure the DMRS RSRP on symbol #(7-victim's own TA value). For example, UE2 can measure the DMRS RSRP on symbol 725, that is, symbol #(7-TA2), where TA2 represents the TA value of UE2. UE3 can measure the DMRS RSRP on symbol 735, which is symbol #(7-TA3), where TA3 represents the TA value of UE3.

[0120] By using timing adjustment for measurement according to some example embodiments of the present disclosure, a victim device (such as a victim UE) can adjust Rx timing to improve the accuracy of CLI measurements. That is, the victim UE can more accurately measure CLI, such as CLI RSRP. As a result, the accuracy of intra-cell UE-to-UE co-channel subband CLI measurements can be improved. Leveraging the accurate measurement results, the network can perform CLI mitigation, which will benefit SBFD operations.

[0121] Return Reference Figure 4 In some example embodiments, the sending of the information (440) may be triggered by the first device 110. As an example, the first device 110 may measure (420) a signal quality of a received signal of the first device 110, such as a CLI-RSSI or a DL block error rate (BLER). For example, the first device 110 may be configured to measure (420) the CLI RSSI on the configured measurement resources. The RSSI measurement does not distinguish between interference sources.

[0122] The CLI-RSSI is defined as the linear average of the total received power (in [W]) observed in the configured Orthogonal Frequency Division Multiplexing (OFDM) symbols of the configured measurement time resources only, in the configured measurement bandwidth from all sources (including co-channel serving and non-serving cells, adjacent channel interference, thermal noise, etc.). The CLI-RSSI may be applicable to frequencies within RRC_CONNECTED frames.

[0123] For frequency range 1, the reference point for RSSI will be the antenna connector of the first device 110. For frequency range 2, the CLI-RSSI should be measured based on the combined signal from the antenna elements corresponding to a given receiver branch. For frequency ranges 1 and 2, if the first device 110 uses receiver diversity, the reported CLI-RSSI value will not be lower than the corresponding CLI-RSSI of any individual receiver branch. In the following description, some example embodiments are described in which the signal quality of the received signal of the first device 110 is the CLI-RSSI measured by the first device 110.

[0124] In some example embodiments, if the signal quality, such as RSSI, is greater than or equal to a threshold, the first device 110 may send (425) the signal quality (such as RSSI) and / or a request for information to the second device 120. The threshold (such as the CLI-RSSI threshold) may be predefined, configured, or specified. The second device 120 may receive (430) the RSSI and / or the request. In response to receiving (430) the RSSI and / or the request, the second device 120 may send (440) the information to the first device 110. In other words, if the reported CLI RSSI is higher than an expectation (e.g., a threshold), the second device 120, such as a gNB, may trigger CLI RSRP measurement to measure the CLI of different aggressors (such as different aggressor UEs) separately. If measurement resources are configured, the second device 120 may include the aggressor UE information so that the first device 110 (such as the victim UE) can adjust its DLRx timing for the measurement.

[0125] Alternatively or additionally, in some example embodiments, if the signal quality, such as RSSI, is less than a threshold, first device 110 may maintain the current measurement method. For example, first device 110 may not adjust the Rx timing of the DMRS. By using the current measurement and timing adjustment measurement in different situations, this "two-step CLI measurement" can be adapted to different scenarios or different CLI conditions.

[0126] In this way, if RSSI CLI or DL BLER exceeds a (predefined) threshold, the SBFD-aware UE can measure and report CLI-RSSI. The network can then trigger the victim UE to measure DMRS or SRS RSRP of a specific aggressor UE or a group of UEs.

[0127] Alternatively, in some example embodiments, first device 110 may send (425) the measured RSSI to second device 120 without comparing it to a threshold. Second device 120 may determine whether the received RSSI exceeds the threshold. If the received RSSI exceeds the threshold, second device 120 may send (440) information to first device 110. In this way, the network can trigger the victim UE to measure the DMRS or SRS RSRP of a specific aggressor UE or a group of UEs.

[0128] By using timing adjustments for measurements in, for example, SBFD networks, (intra-cell) UE-to-UE co-channel sub-band CLI timing alignment can be achieved. Victim UE Rx timing can be adjusted to improve the accuracy of intra-cell UE-to-UE co-channel sub-band CLI measurements. Leveraging the improved measurement results, the network can apply CLI mitigation solutions to improve SBFD operation.

[0129] Figure 8 A flow chart of an example method 800 implemented at a first device according to some example embodiments of the present disclosure is shown. For the purpose of discussion, Figure 1 The method 800 is described from the perspective of the first device 110.

[0130] At block 810 , the first device 110 receives information from the second device regarding a timing adjustment of a reception timing of a reference signal from a third device.

[0131] At block 820 , the first device 110 determines a reception timing of a reference signal.

[0132] At block 830 , the first device 110 adjusts the reception timing of the reference signal based on the information.

[0133] At block 840 , the first device 110 performs at least one measurement of a reference signal based on the adjusted receive timing.

[0134] In some example embodiments, the information includes at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, and a value of the timing adjustment.

[0135] In some example embodiments, the method 800 further comprises determining a value for the timing adjustment based on the information.

[0136] In some example embodiments, the information includes: a first timing advance value of the third device relative to the second device, and a second timing advance value for communication between the first device and the second device, and the first device 110 may determine the value based at least in part on at least one of the first timing advance value and the second timing advance value.

[0137] In some example embodiments, the information also includes at least one of the following: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, or beam information of the second beam; and the first device 110 can further determine the value based on at least one of the angle difference and the beam information.

[0138] In some example embodiments, the method 800 further comprises: determining a second distance between the third device and the first device; and determining the value based on the third distance.

[0139] In some example embodiments, the method 800 further includes determining a second distance based at least in part on the first distance and a third distance between the first device and the second device.

[0140] In some example embodiments, the information also includes at least one of the following: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam; and the first device 110 further determines the second distance based on at least one of the angle difference and the beam information.

[0141] In some example embodiments, the information comprises: a first value of a timing adjustment associated with a cell serving the third apparatus, and a second value of a timing adjustment associated with the first apparatus.

[0142] In some example embodiments, method 800 further includes: determining a first adjusted receive timing of a reference signal based on the first value; performing a first measurement of the reference signal based on the first adjusted receive timing; determining a second adjusted receive timing of the reference signal based on the second value; performing a second measurement of the reference signal based on the second adjusted receive timing; and sending at least one of the following to the second device: a first measurement result of the first measurement, a second measurement result of the second measurement.

[0143] In some example embodiments, the first value is associated with a first timing advance value of the third apparatus relative to the second apparatus, and the second value is associated with a second timing advance value for communication between the first apparatus and the second apparatus.

[0144] In some example embodiments, the method 800 further includes: based on determining that the signal quality of the received signal of the first device is greater than or equal to a threshold, sending at least one of the following to the second device: signal quality, a request for information.

[0145] In some example embodiments, the first apparatus comprises a first terminal device, the second apparatus comprises a network node, and the third apparatus comprises a second terminal device. Transmissions from the network node to the first terminal device and transmissions from the second terminal device to the network node are sub-band non-overlapping full-duplex.

[0146] Figure 9 A flow chart of an example method 900 implemented at a second device according to some example embodiments of the present disclosure is shown. For the purpose of discussion, Figure 1 Method 900 is described from the perspective of the second device 120.

[0147] At block 910 , the second apparatus transmits information regarding a timing adjustment of a reception timing of a reference signal from a third apparatus to the first apparatus.

[0148] At block 920 , the second device 120 receives, from the first device, at least one measurement result of at least one measurement of the reference signal, the at least one measurement being performed by the first device based on the adjusted reception timing of the reference signal.

[0149] In some example embodiments, the information includes at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, and a value of the timing adjustment.

[0150] In some example embodiments, method 900 further includes determining a value of the timing adjustment based on at least one of: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam.

[0151] In some example embodiments, the method 900 further comprises determining the value based at least in part on at least one of the first timing advance value and the second timing advance value.

[0152] In some example embodiments, the method 900 further comprises: determining the value based on at least one of an angle difference and beam information.

[0153] In some example embodiments, the method 900 further includes determining a second distance between the third device and the first device based at least in part on the first distance between the third device and the second device and a third distance between the first device and the second device.

[0154] In some example embodiments, the method 900 further includes determining the second distance based on at least one of: an angular difference between a first beam associated with the first and second devices and a second beam associated with the second and third devices, and beam information of the second beam.

[0155] In some example embodiments, the information comprises a first value of a timing adjustment associated with a cell serving the third apparatus, and a second value of a timing adjustment associated with the first apparatus.

[0156] In some example embodiments, the first value is associated with a first timing advance value of the third apparatus relative to the second apparatus, and the second value is associated with a second timing advance value for communication between the first apparatus and the second apparatus.

[0157] In some example embodiments, the method 900 further includes receiving from the first device at least one of: a signal quality of a received signal of the first device, and a request for information; and sending the information to the first device in response to receiving at least one of the signal quality and the request.

[0158] In some example embodiments, the first apparatus comprises a first terminal device, the second apparatus comprises a network node, and the third apparatus comprises a second terminal device. Transmissions from the network node to the first terminal device and transmissions from the second terminal device to the network node are sub-band non-overlapping full-duplex.

[0159] In some example embodiments, a first device (eg, Figure 1 The first device 110 in the embodiment may include components for performing the corresponding operations of method 800. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or a software module. The first device may be implemented as or included in Figure 1 In the first device 110.

[0160] In some example embodiments, a first apparatus includes: means for receiving, from a second apparatus, information regarding a timing adjustment of a receive timing of a reference signal from a third apparatus; means for determining the receive timing of the reference signal; means for adjusting the receive timing of the reference signal based on the information; and means for performing at least one measurement of the reference signal based on the adjusted receive timing.

[0161] In some example embodiments, the first apparatus further comprises means for performing other operations in some example embodiments of the method 800 or the first apparatus 110. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to perform the operations.

[0162] In some example embodiments, a second device (eg, Figure 1 The second device 120 in the embodiment may include components for performing the corresponding operations of method 900. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or a software module. The second device may be implemented as or included in Figure 1 In the second device 120.

[0163] In some example embodiments, the second apparatus includes: means for sending information to the first apparatus regarding a timing adjustment of a reception timing of a reference signal from a third apparatus; and means for receiving, from the first apparatus, at least one measurement result of at least one measurement of the reference signal, the at least one measurement performed by the first apparatus based on the adjusted reception timing of the reference signal.

[0164] In some example embodiments, the second apparatus further comprises means for performing other operations in some example embodiments of the method 900 or the second apparatus 120. In some example embodiments, the apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus to perform.

[0165] Figure 10 is a simplified block diagram of a device 1000 suitable for implementing an example embodiment of the present disclosure. The device 1000 may be provided to implement a communication device, such as Figure 1 The first device 110 or the second device 120 is shown. As shown, the device 1000 includes one or more processors 1010, one or more memories 1020 coupled to the processor 1010, and one or more communication modules 1040 coupled to the processor 1010.

[0166] The communication module 1040 is configured for bidirectional communication. The communication module 1040 has one or more communication interfaces to facilitate communication with one or more other modules or devices. A communication interface may represent any interface necessary to communicate with other network elements. In some example embodiments, the communication module 1040 may include at least one antenna.

[0167] As non-limiting examples, processor 1010 may be of any type suitable for the local technology network and may include one or more of the following: a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 1000 may have multiple processors, such as dedicated integrated circuit chips that are time-slaved to a clock synchronized with a master processor.

[0168] The memory 1020 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 1024, electrically programmable read-only memory (EPROM), flash memory, hard disks, compact discs (CDs), digital video discs (DVDs), optical discs, laser discs, and other magnetic and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 1022 and other volatile memories that will not persist during a power outage.

[0169] Computer program 1030 includes computer-executable instructions executed by associated processor 1010. The instructions of program 1030 may include instructions for performing the operations / actions of some example embodiments of the present disclosure. Program 1030 may be stored in a memory, such as ROM 1024. Processor 1010 may perform any suitable actions and processes by loading program 1030 into RAM 1022.

[0170] The exemplary embodiments of the present disclosure may be implemented by the program 1030 so that the device 1000 may execute the Figures 4 to 9 Any process of the present disclosure discussed. The example embodiments of the present disclosure may also be implemented by hardware or a combination of software and hardware.

[0171] In some example embodiments, program 1030 may be tangibly embodied in a computer-readable medium that may be included in device 1000 (such as in memory 1020) or in other storage devices accessible by device 1000. Device 1000 may load program 1030 from the computer-readable medium to RAM 1022 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. As used herein, the term "non-transitory" is a limitation of the medium itself (i.e., tangible rather than a signal), not a limitation on the persistence of data storage (e.g., RAM versus ROM).

[0172] Figure 11 An example of a computer readable medium 1100 is shown which may be in the form of a CD, DVD, or other optical storage disc.The computer readable medium 1100 has a program 1030 stored thereon.

[0173] In general, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are shown and described as block diagrams, flow charts, or using some other graphical representation, it should be understood that the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or a controller or other computing device, or some combination thereof, in non-limiting examples.

[0174] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer-readable medium (such as a non-transient computer-readable medium). The computer program product includes computer-executable instructions, such as those included in a program module, executed in a device on a target physical or virtual processor to perform any of the methods described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The functions of the program modules can be combined or split between program modules as needed in various embodiments. The machine-executable instructions for the program modules can be executed in local or distributed devices. In distributed devices, the program modules can be located in local and remote storage media.

[0175] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code, when executed by the processor or controller, causes the realization of the function / operation specified in the flow chart and / or block diagram. The program code can be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0176] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, etc.

[0177] The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable medium may include, but is 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 computer-readable storage media would include an electrical connection having one or more wires, a portable computer disk, 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.

[0178] In addition, although the operations are depicted in a particular order, this should not be understood as requiring that the operations be performed in the particular order shown or in a sequential order, or that all of the operations shown be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details have been included in the above discussion, these details should not be interpreted as limiting the scope of this disclosure, but rather as describing features that may be specific to a particular embodiment. Unless expressly stated otherwise, certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, unless expressly stated otherwise, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable subcombination.

[0179] Although the disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the 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.

[0180] In addition, various implementations of the present disclosure may be described with reference to the following clauses, and features thereof may be combined in any reasonable manner.

[0181] Item 1. A first device comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device to: receive information from a second device relating to a timing adjustment of a receive timing of a reference signal from a third device; determine the receive timing of the reference signal; adjust the receive timing of the reference signal based on the information; and perform at least one measurement of the reference signal based on the adjusted receive timing.

[0182] Clause 2. A first device according to clause 1, wherein the information includes at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, and a timing adjustment value.

[0183] Clause 3. The first apparatus of clause 1 or 2, wherein the first apparatus is caused to determine a value of the timing adjustment based on the information.

[0184] Clause 4. A first device according to clause 3, wherein the information includes: a first timing advance value of the third device relative to the second device, and a second timing advance value for communication between the first device and the second device, and the first device is further configured to determine the value based at least in part on at least one of the first timing advance value and the second timing advance value.

[0185] Clause 5. A first device according to Clause 4, wherein the information further includes at least one of the following: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, or beam information of the second beam; and the first device is further configured to determine the value based on at least one of the angle difference and the beam information.

[0186] Clause 6. The first device of Clause 3, wherein the first device is further caused to: determine a second distance between a third device and the first device; and determine the value based on the third distance.

[0187] Clause 7. The first device of Clause 6, wherein the information comprises a first distance between the third device and the second device, and the first device is further caused to: determine the second distance based at least in part on the first distance and a third distance between the first device and the second device.

[0188] Clause 8. A first device according to Clause 7, wherein the information further includes at least one of the following: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam; and the first device is further configured to: further determine the second distance based on at least one of the angle difference and the beam information.

[0189] Clause 9. The first apparatus of Clause 1, wherein the information comprises: a first value of a timing adjustment associated with a cell serving a third apparatus, and a second value of a timing adjustment associated with the first apparatus.

[0190] Clause 10. A first device according to Clause 9, wherein the first device is further caused to: determine a first adjusted receive timing of a reference signal based on a first value; perform a first measurement of the reference signal based on the first adjusted receive timing; determine a second adjusted receive timing of the reference signal based on a second value; perform a second measurement of the reference signal based on the second adjusted receive timing; and send at least one of the following to the second device: a first measurement result of the first measurement, a second measurement result of the second measurement.

[0191] Clause 11. The first apparatus of clause 9 or 10, wherein the first value is associated with a first timing advance value of the third apparatus relative to the second apparatus, and the second value is associated with a second timing advance value for communications between the first apparatus and the second apparatus.

[0192] Clause 12. The first device of any one of clauses 1 to 11, wherein the first device is caused to: send at least one of the following to the second device based on determining that the signal quality of the received signal of the first device is greater than or equal to a threshold: signal quality, a request for information.

[0193] Clause 13. A first apparatus according to any one of clauses 1 to 12, wherein the first apparatus comprises a first terminal device, the second apparatus comprises a network node, the third apparatus comprises a second terminal device, and transmissions from the network node to the first terminal device and transmissions from the second terminal device to the network node are sub-band non-overlapping full-duplex.

[0194] Item 14. A second device comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to: send information to the first device regarding a timing adjustment for a reception timing of a reference signal from a third device; and receive from the first device at least one measurement result of at least one measurement of the reference signal, the at least one measurement being performed by the first device based on the adjusted reception timing of the reference signal.

[0195] Clause 15. A second device according to clause 14, wherein the information includes at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, and a timing adjustment value.

[0196] Clause 16. A second device according to clause 14 or 15, wherein the second device is configured to determine a value of the timing adjustment based on at least one of: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first device and the second device, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam.

[0197] Clause 17. The second apparatus of clause 16, wherein the second apparatus is further caused to determine the value based at least in part on at least one of the first timing advance value, the second timing advance value.

[0198] Clause 18. The second apparatus of clause 17, wherein the second apparatus is further caused to: determine the value based on at least one of an angle difference and beam information.

[0199] Clause 19. The second device of clause 14 or 15, wherein the second device is further caused to determine a second distance between the third device and the first device based at least in part on the first distance between the third device and the second device and the third distance between the first device and the second device.

[0200] Clause 20. A second device according to Clause 19, wherein the second device is further configured to: further determine the second distance based on at least one of the following: an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam.

[0201] Clause 21. The second apparatus of Clause 14, wherein the information comprises: a first value of a timing adjustment associated with a cell serving the third apparatus, and a second value of a timing adjustment associated with the first apparatus.

[0202] Clause 22. The second apparatus of clause 21, wherein the first value is associated with a first timing advance value of the third apparatus relative to the second apparatus, and the second value is associated with a second timing advance value for communications between the first apparatus and the second apparatus.

[0203] Clause 23. A second device according to any one of clauses 14 to 22, wherein the second device is caused to: receive at least one of the following from the first device: signal quality of a received signal of the first device, a request for information; and send information to the first device in response to receiving at least one of the signal quality and the request.

[0204] Clause 24. A second apparatus according to any one of clauses 14 to 23, wherein the first apparatus comprises a first terminal device, the second apparatus comprises a network node, the third apparatus comprises a second terminal device, and transmissions from the network node to the first terminal device and transmissions from the second terminal device to the network node are sub-band non-overlapping full-duplex.

[0205] Clause 25. A method comprising: receiving, at a first device, from a second device, information regarding a timing adjustment of a receive timing of a reference signal from a third device; determining the receive timing of the reference signal; adjusting the receive timing of the reference signal based on the information; and performing at least one measurement of the reference signal based on the adjusted receive timing.

[0206] Clause 26. A method comprising: sending, at a second device, to a first device, information regarding a timing adjustment for a receive timing of a reference signal from a third device; and receiving, from the first device, at least one measurement result of at least one measurement of the reference signal, the at least one measurement being performed by the first device based on the adjusted receive timing of the reference signal.

[0207] Clause 27. A first device comprising: means for receiving information from a second device regarding a timing adjustment of a receive timing of a reference signal from a third device; means for determining the receive timing of the reference signal; means for adjusting the receive timing of the reference signal based on the information; and means for performing at least one measurement of the reference signal based on the adjusted receive timing.

[0208] Clause 28. A second device comprising: means for sending information to a first device regarding a timing adjustment of a reception timing of a reference signal from a third device; and means for receiving from the first device at least one measurement result of at least one measurement of the reference signal, the at least one measurement being performed by the first device based on the adjusted reception timing of the reference signal.

[0209] Clause 29. A computer-readable medium comprising instructions stored thereon, the instructions for causing an apparatus to perform at least the method of clause 25 or the method of clause 26.

Claims

1. A first device, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the first device to: receiving, from the second device, information regarding a timing adjustment of a reception timing of a reference signal from the third device; determining the reception timing of the reference signal; adjusting the reception timing of the reference signal based on the information; as well as At least one measurement of the reference signal is performed based on the adjusted reception timing.

2. The first device according to claim 1, wherein the information comprises at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first apparatus and the second apparatus, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, The value of the timing adjustment.

3. The first device according to claim 1 or 2, wherein the first device is configured to: A value for the timing adjustment is determined based on the information.

4. The first device according to claim 3, wherein the information comprises: a first timing advance value of the third device relative to the second device, and a second timing advance value for communication between the first device and the second device, and The first apparatus is further caused to determine the value based at least in part on at least one of the first timing advance value, the second timing advance value.

5. The first device according to claim 4, wherein the information further comprises at least one of: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, or beam information of the second beam; and The first device is further caused to determine the value based on the at least one of the angle difference and the beam information.

6. The first device according to claim 3, wherein the first device is further configured to: determining a second distance between the third device and the first device; and The value is determined based on a third distance.

7. The first device according to claim 6, wherein the information comprises a first distance between the third device and the second device, and the first device is further caused to: The second distance is determined based at least in part on the first distance and a third distance between the first device and the second device.

8. The first device according to claim 7, wherein the information further comprises at least one of the following: an angle difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, and beam information of the second beam; and The first device is further configured to determine the second distance based on the at least one of the angle difference and the beam information.

9. A second device comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the second device to: sending information regarding a timing adjustment of a reception timing of a reference signal from a third device to the first device; as well as At least one measurement result of at least one measurement of the reference signal is received from the first apparatus, the at least one measurement being performed by the first apparatus based on the adjusted reception timing of the reference signal.

10. The second device according to claim 9, wherein the information includes at least one of the following: a first timing advance value of the third device relative to the second device, a second timing advance value for communication between the first apparatus and the second apparatus, a first distance between the third device and the second device, a second distance between the third device and the first device, an angular difference between a first beam associated with the first device and the second device and a second beam associated with the second device and the third device, beam information of the second beam, The value of the timing adjustment.

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