Searchers for measurement
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-08-13
Smart Images
Figure CN2025076231_13082026_PF_FP_ABST
Abstract
Description
SEARCHERS FOR MEASUREMENTFIELD
[0001] Various example embodiments relate to the field of communication and in particular, to devices, methods, apparatuses and a computer readable storage medium for searchers for measurement.BACKGROUND
[0002] A communication network can be seen as a facility that enables communications between two or more communication devices, or provides communication devices access to a data network. A mobile or wireless communication network is one example of a communication network.
[0003] Such communication networks operate in accordance with standards, such as those promulgated by 3GPP (Third Generation Partnership Project) or ETSI (European Telecommunications Standards Institute) . Examples of such standards include the so-called 5G (5th Generation) standard or other standards promulgated by 3GPP.SUMMARY
[0004] In general, example embodiments of the present disclosure provide a solution for searchers for measurement. With this solution, the terminal device can use three searchers and reduce the measurement delay, thereby improving the performance of communication with the searchers.
[0005] In a first aspect, there is provided a terminal device. The terminal device comprises at least one processor and at least one memory storing instructions. The instructions, when executed by the at least one processor, cause the terminal device at least to receive, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal. The terminal device is further caused to perform the measurement with the three searchers and a carrier specific scaling factor (CSSF) . The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+ (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0006] In a second aspect, there is provided a network device. The network device comprises at least one processor and at least one memory storing instructions. The instructions, when executed by the at least one processor, cause the network device at least to transmit, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) . The CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+ (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0007] In a third aspect, there is provided a method implemented at a terminal device. The method comprises receiving, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal. The method further comprises performing the measurement with the three searchers and a carrier specific scaling factor (CSSF) . The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0008] In a fourth aspect, there is provided a method implemented at a network device. The method comprises transmitting, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) . The CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0009] In a fifth aspect, there is provided an apparatus. The apparatus comprises means for receiving, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal. The apparatus further comprises means for performing the measurement with the three searchers and a carrier specific scaling factor (CSSF) . The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0010] In a sixth aspect, there is provided an apparatus. The apparatus comprises means for transmitting, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) . The CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+ (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0011] In a seventh aspect, there is provided a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above third and fourth aspects.
[0012] In an eighth aspect, there is provided a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus to perform at least the method according to any one of the above third and fourth aspects.
[0013] In a ninth aspect, there is provided a terminal device. The terminal device comprises receiving circuitry configured to receive, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal. The terminal device further comprises performing circuitry configured to perform the measurement with the three searchers and a carrier specific scaling factor (CSSF) . The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+ (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0014] In a tenth aspect, there is provided a network device. The network device comprises transmitting circuitry configured to transmit, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) . The CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0015] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Some example embodiments will now be described with reference to the accompanying drawings, in which:
[0017] FIG. 1A illustrates an example communication network in which embodiments of the present disclosure may be implemented;
[0018] FIG. 1B illustrates an example of measurements performed in a CA scenario with 1 PCC in FR1 and 2 SCCs in FR2;
[0019] FIG. 2 illustrates a flowchart illustrating an example of process for measurements performed with three searchers according to some embodiments of the present disclosure;
[0020] FIG. 3 illustrates a flowchart illustrating an example of detail process for measurements performed with 3 searchers according to some embodiments of the present disclosure;
[0021] FIG. 4 illustrates an example of searcher allocation according to some embodiments of the present disclosure;
[0022] FIG. 5 illustrates a flowchart of a method implemented at a terminal device according to some other embodiments of the present disclosure;
[0023] FIG. 6 illustrates a flowchart of a method implemented at a network device according to some other embodiments of the present disclosure;
[0024] FIG. 7 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure; and
[0025] FIG. 8 illustrates a block diagram of an example computer readable medium in accordance with some embodiments of the present disclosure.
[0026] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0027] Principles of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below.
[0028] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0029] References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0030] It shall be understood that although the terms “first” and “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 could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0031] The terminology used herein is for describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated 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. As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
[0032] As used in this application, the term “circuitry” may refer to one or more or all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and (b) combinations of hardware circuits and software, such as (as applicable) : (i) a combination of analog and / or digital hardware circuit (s) with software / firmware and (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and (c) hardware circuit (s) and or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) , that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
[0033] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
[0034] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) and the sixth generation (6G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
[0035] As used herein, the term “network device” and “access network device” refer to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a transmission reception point (TRP) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
[0036] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) . The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. In the following description, the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
[0037] FIG. 1A illustrates a schematic diagram of an example communication network 100 in which some embodiments of the present disclosure can be implemented. As shown in FIG. 1A, the communication network 100 may include terminal device 110, network device 120.
[0038] It is to be understood that the number of network devices and terminal devices is only for the purpose of illustration without suggesting any limitations. The system 100 may include any suitable number of network devices and terminal devices adapted for implementing embodiments of the present disclosure.
[0039] Communications in the communication system 100 may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) and the sixth generation (6G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, comprising 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 (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.
[0040] In the 5G networks, one object is frequency range 2-1 (FR2-1) synchronization signal / physical broadcast channel (SSB) based L3 measurement delay reduction. The CSSF optimization is to be considered for UE not in multiple-Rx simultaneous reception mode. Specifically, CSSF values are derived to scale the measurement delay requirements when UE is configured to monitor multiple measurement objects in new radio (NR) carrier aggregation (CA) or Multi-RAT dual connectivity (MR-DC) scenarios. Taking NR CA as example, the CSSF values for SCC are determined based on the number of configured SCells e.g. NSCC_SSB, NSCC_CSI-RS. And the number of searchers of UE is increased from two to three for the measurement. In general, a searcher can be one or more components of a UE for detecting a reference signal. For example, such one or more components may include one or more hardware components of the UE, one or more software components of the UE, or both one or more hardware components and one or more software components of the UE. For instance, the one or more hardware components may include one or more transceivers, one or more antennas, one or more processing circuits, or the like. For instance, the one or more software components may include software, instructions, codes or the like for searching a reference signal or other signals.
[0041] FIG. 1B shows an example of how measurements are performed in a CA scenario with one PCC in FR1 and two SCCs in FR2. The measurement delay requirements for measurements outside gaps are assuming 1 searcher available for PCC and the other i.e. the 2nd searcher available for all configured SCCs. So there are two searchers used for L3 measurements. One searcher is used for PCC and the other searcher is used for the measurements on all SCCs. As the 2nd searcher is shared among the measurements on all SCCs, the measurement time will be scaled by the number of SCCs.
[0042] When three searchers are considered, the solution for distributing the three searchers among the cells to be measured needs to be introduced. This will determine how the CSSF values are derived based on three searchers. Then the CSSF for outside gap measurements can be reduced by utilizing the potential available 3rd searcher available at the UE. For specific CA configurations and if UE capabilities allows it, the measurement delay requirements will require UEs to be equipped with three searchers capable of parallel measurements.
[0043] According to some embodiments of the present disclosure, there is provided a solution to perform the measurement with three searchers and associated CSSF. Principles and embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0044] FIG. 2 illustrates a flowchart illustrating an example of process for measurements performed with three searchers according to some embodiments of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1A. The process 200 may involve the terminal device 110, the network device 120 as illustrated in FIG. 1A. It would be appreciated that although the process 200 for link has been described in the communication system 100 of FIG. 1A, this process may be likewise applied to other communication scenarios where different network devices are jointly deployed.
[0045] In some embodiments, the terminal device 110 receives from the network device 120 an indication 202 for using three searchers for measurement. And the terminal device 110 perform 204 the measurement with the three searchers and a CSSF. One of the following options determines the CSSF. The first option is determining that a first CSSF for a secondary carrier is equal to two, a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) )+ (1 / (Nc-1) ) ) . Nc is a number of secondary carriers. The second option is determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) . The third option is determining that a first CSSF for a secondary carrier is equal to one, a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1. The fourth option is determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0046] With the solution of the process, the solution for measurement with three searchers and associated CSSF is provided, thereby improving the performance of communication with three searchers.
[0047] FIG. 3 illustrates a flowchart illustrating an example of detail process for measurements performed with 3 searchers according to some embodiments of the present disclosure. For the purpose of discussion, the process 300 will be described with reference to FIG. 1A. The process 300 may involve the terminal device 110, the network device 120 as illustrated in FIG. 1A. It would be appreciated that although the process 300 for link has been described in the communication system 100 of FIG. 1A, this process may be likewise applied to other communication scenarios where different network devices are jointly deployed.
[0048] In some embodiments, the terminal device 110 transmits to the network device 120, capability information 302 of using the three searchers for the measurement. And the capability information of using the three searchers for the measurement indicates the measurement of using the three searchers is not supported, or indicates the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2, or indicates the measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2. Then the terminal device 110 receives the request 304 for using the three searchers for measurements. Then at 306, the terminal device 110 activates the three searchers and perform measurements with a delay scaled by the updated CSSF.
[0049] FIG. 4 illustrates an example of searcher allocation according to some embodiments of the present disclosure. In some embodiments, a first searcher of the three searchers is for the measurement of a primary cell. Specifically, among the three searchers, it is assumed that one searcher is dedicated used for the PCC measurement to ensure the PCC measurement performance. For example, the first searcher is dedicated used for the PCC measurement. And there are the second searcher and third searcher for SCC measurements. As shown in FIG. 4, the PCC is allocated a full searcher (marked in black) , allowing measurements in each occasion.
[0050] In some embodiments, the second searcher (marked in light grey) is allocated 50%to the FR2 SCC where neighbor cell measurement is required, and the additional 50%is shared between the additional SCCs i.e. FR1 SCC and FR2 SCC. In this example, there are additional two SCCs that each are allocated 25%of the second searcher. Then the third searcher is added on top of usage of the two searchers to determine the CSSF values. And how the searchers are to be used can be indicated as UE capability or by network indication, or defined as a default assumption.
[0051] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) , where neighbour cell measurement is required, share a third searcher of the three searchers for the measurement. For example, this option is called solution 0. Specifically, the allocation of the third searcher is shared evenly between all configured SCCs where no neighbour cell measurements are required. As shown in FIG. 4, the two SCCs with no NC measurements gets additional searcher allocation as illustrated with the grey color. For each legacy measurement (in light grey) , additional two measurements are possible with the third searcher. In this solution, the allocation ratios of searchers for FR1 PCC is 1, for FR1 SCC is 25%+ 50%, and for FR2 SCC with neighbor cell measurement is 50%, and for FR2 SCC w / o neighbor cell measurement is 25%+ 50%. The following Table 1 shows the associated CSSF for the solution 0. Table 1
[0052] In some embodiments, the secondary carriers share a third searcher of the three searchers for the measurement. For example, this option is called solution 1. Specifically, the allocation of the third searcher is shared evenly between all configured SCCs. As shown in FIG. 4, it means sharing between the three SCCs configured (1 FR1 + 2 FR2) , hence each configured SCC will be allocated the third searcher every third SMTC occasion. So for the shown period of 12 SMTC occasions each SCC will be allocated the third searcher during four SMTC occasions. In this solution, the allocation ratios of searchers for FR1 PCC is 1, for FR1 / FR2 SCC without neighbor cell measurement is 25%+ 33%, for FR2 SCC with neighbor cell measurement is 50%+ 33%. The following Table 2 shows the associated CSSF for the solution 1. Table 2
[0053] In some embodiments, a third searcher of the three searcher is for the measurement of the secondary FR2 carrier, with neighbor cell measurement, firstly, and the third searcher is for a rest of the secondary carriers secondly. For example, the option is called solution 2. Specifically, the allocation of the third searcher is shared by first allocating it for the SCC where neighbor cell measurements are required. For the shown example that means for the 6 SMTC occasion not already covered by legacy requirements. The additional time the third searcher is evenly shared between the additional SCCs, in the example that means three SMTC occasions for each of the additional SCCs. With this solution the SCC where neighbor cell measurements are required will have a searcher allocated in each SMTC occasion. In this solution, the allocation ratios of searchers for FR1 PCC is 1, for FR1 SCC is 25%+ 25%, for FR2 SCC with neighbor cell measurement is 50%+ 50%, for FR2 SCC w / o neighbor cell measurement is 25%+ 25%. The following Table 3 shows the associated CSSF for the solution 2.
[0054] In addition, following Table 4 is showing example of the achievable value of CSSF for the 3 solutions presented. For solution 0 the reduction of CSSF is between 0 and 67%, for solution 1 the reduction of CSSF is between 40 to 57 %, whereas for solution 2 the reduction is 50%for all types of SCC. In any case the reduction seems to be significant. Table 4
[0055] In some embodiments, both the second searcher and the third searcher can be allocated for all SCCs for measurements. And the searchers are to be used can be indicated as UE capability or by network, or defined as a default assumption.
[0056] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. The allocation ratios of searchers for FR1 PCC is 1, for FR1 SCC is (2-X%) / 2, for FR2 SCC with neighbor cell measurement is X%, for FR2 SCC w / o neighbor cell measurement is (2-X%) / 2. The X is the allocation of the two searchers for the FR2 SCC with neighbor cell measurements.
[0057] In some embodiments, the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement. And the allocation ratios of searchers for FR1 PCC is 1, for FR1 SCC is 33%*2, for FR2 SCC with neighbor cell measurement is 33%*2, for FR2 SCC w / o neighbor cell measurement is 33%*2. The following Table 5 shows the associated CSSF for this solution. Table 5
[0058] In some embodiments, a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly. And the allocation ratios of searchers for FR1 PCC is 1, for FR1 SCC is 50%, for FR2 SCC with neighbor cell measurement is 1, for FR2 SCC w / o neighbor cell measurement is 50%. The associated CSSF for this solution is same as the values in Table 3.
[0059] In view of the above description of the various embodiments of the present disclosure, these embodiments of the present disclosure provide different alternative solutions for how the three searchers are utilized to reduce the specified CSSF, and prioritize the searcher allocation among the different CCs. Then the performance of communication with three searchers is improved.
[0060] FIG. 5 shows a flowchart of an example method 500 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of the terminal device 110 with reference to FIG. 1A.
[0061] At block 510, the terminal device 110 receives from a network device, an indication for using three searchers for measurement. The searcher is for detecting a reference signal. At block 520, the terminal device 110 performs the measurement with the three searchers and CSSF. The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0062] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers share a third searcher of the three searchers for the measurement. Or the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement. Or a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly. Or a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly. Or a first searcher of the three searchers is for the measurement of a primary cell. The terminal device 110 transmits to the network device, capability information of using the three searchers for the measurement. The capability information of using the three searchers for the measurement comprises one of following: the measurement of using the three searchers is not supported; the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; or the measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.
[0063] FIG. 6 shows a flowchart of an example method 600 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the network device 120 with reference to FIG. 1A.
[0064] At block 610, the network device 120 transmits to a terminal device, an indication for using three searchers for measurement. The searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) , the CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1, a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0065] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers share a third searcher of the three searchers for the measurement. Or the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement. Or a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly. Or a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly. Or a first searcher of the three searchers is for the measurement of a primary cell. The network device 120 receives from the terminal device, capability information of using the three searchers for the measurement. The capability information of using the three searchers for the measurement comprises one of following: the measurement of using the three searchers is not supported; the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; or the measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.
[0066] In some embodiments, an apparatus capable of performing any of the method 500 (for example, the terminal device 110) may comprise means for performing the respective steps of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0067] The apparatus comprises means for receiving from a network device, an indication for using three searchers for measurement. The searcher is for detecting a reference signal. The apparatus comprises means for performing the measurement with the three searchers and CSSF. The CSSF is determined by one of the following: determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers; determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0068] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers share a third searcher of the three searchers for the measurement. Or the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement. Or a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly. Or a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly. Or a first searcher of the three searchers is for the measurement of a primary cell. The apparatus comprises means for transmitting to the network device, capability information of using the three searchers for the measurement. The capability information of using the three searchers for the measurement comprises one of following: the measurement of using the three searchers is not supported; the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; or the measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.
[0069] In some embodiments, an apparatus capable of performing any of the method 600 (for example, the network device 120) may comprise means for performing the respective steps of the method 600. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0070] In some embodiments, the apparatus comprises means for transmitting to a terminal device, an indication for using three searchers for measurement. The searcher is for detecting a reference signal, and the measurement is performed with a carrier specific scaling factor (CSSF) , the CSSF is one of the following: a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers; a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ; a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1, a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.
[0071] In some embodiments, the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2. Or the secondary carriers share a third searcher of the three searchers for the measurement. Or the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement. Or a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly. Or a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly. Or a first searcher of the three searchers is for the measurement of a primary cell. The apparatus comprises means for receiving from the terminal device, capability information of using the three searchers for the measurement. The capability information of using the three searchers for the measurement comprises one of following: the measurement of using the three searchers is not supported; the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; or the measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.
[0072] FIG. 7 is a simplified block diagram of a device 700 that is suitable for implementing embodiments of the present disclosure. The device 700 may be provided to implement the communication device, for example the terminal device 110, the network device 120 as shown in FIG. 1A. As shown, the device 700 includes one or more processors 710, one or more memories 720 coupled to the processor 710, and one or more communication modules 740 coupled to the processor 710.
[0073] The communication module 740 is for bidirectional communications. The communication module 740 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0074] The processor 710 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 700 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0075] The memory 720 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 724, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a random access memory (RAM) 722 and other volatile memories that will not last in the power-down duration.
[0076] A computer program 730 includes computer executable instructions that are executed by the associated processor 710. The program 730 may be stored in the ROM 724. The processor 710 may perform any suitable actions and processing by loading the program 730 into the RAM 722.
[0077] The embodiments of the present disclosure may be implemented by means of the program 730 so that the device 700 may perform any process of the disclosure as discussed with reference to FIGS. 2 to 6. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0078] In some embodiments, the program 730 may be tangibly contained in a computer readable medium which may be included in the device 700 (such as in the memory 720) or other storage devices that are accessible by the device 700. The device 700 may load the program 730 from the computer readable medium to the RAM 722 for execution. The computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. FIG. 8 shows an example of the computer readable medium 800 in form of CD or DVD. The computer readable medium has the program 730 stored thereon.
[0079] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0080] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the methods 500-600 as described above with reference to FIGS. 5-6. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0081] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0082] In the context of the present disclosure, the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.
[0083] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
[0084] Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0085] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A terminal device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to:receive, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal;perform the measurement with the three searchers and a carrier specific scaling factor (CSSF) , wherein the CSSF is determined by one of the following:- determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , wherein Nc is a number of secondary carriers;- determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or- determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.2.The terminal device of claim 1, wherein the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2.3.The terminal device of claim 1, wherein the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2.4.The terminal device of claim 1, wherein the secondary carriers share a third searcher of the three searchers for the measurement.5.The terminal device of claim 1, wherein the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement.6.The terminal device of claim 1, wherein a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly.7.The terminal device of claim 1, wherein a second searcher and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly.8.The terminal device of any of claims 1 to 7, wherein a first searcher of the three searchers is for the measurement of a primary cell.9.The terminal device of any of claims 1 to 8, wherein the terminal device is further caused to:transmit, to the network device, capability information of using the three searchers for the measurement.10.The terminal device of claim 9, wherein the capability information of using the three searchers for the measurement comprises one of following:the measurement of using the three searchers is not supported;the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; orthe measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.11.A network device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to:transmit, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, the measurement is performed with a carrier specific scaling factor (CSSF) , and the CSSF is one of the following:- a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers;- a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or- a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.12.The network device of claim 11, wherein the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2.13.The network device of claim 11, wherein the secondary carriers except the secondary carrier of frequency range 2 (FR2) share a second searcher and a third searcher of the three searchers for the measurement, and the neighbor cell measurement is required in the secondary carrier of FR2.14.The network device of claim 11, wherein the secondary carriers share a third searcher of the three searchers for the measurement.15.The network device of claim 11, wherein the secondary carriers share a second searcher or a third searcher of the three searchers for the measurement.16.The network device of claim 11, wherein a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, and the third searcher is for a rest of the secondary carriers secondly.17.The network device of claim 11, wherein a second and a third searcher of the three searcher is for the measurement of the secondary carrier firstly, and the neighbor cell measurement is required in the secondary carrier, the second searcher and the third searcher is for a rest of the secondary carriers secondly.18.The network device of any of claims 11 to 17, wherein a first searcher of the three searchers is for the measurement of a primary cell.19.The network device of any of claims 11 to 18, wherein the network device is further caused to:transmit, to the network device, capability information of using the three searchers for the measurement.20.The network device of claim 19, wherein the capability information of using the three searchers for the measurement comprises one of following:the measurement of using the three searchers is not supported;the measurement of using the three searchers is supported, and at most two searchers are supported for the measurement in FR2; orthe measurement of using the three searchers is supported, and at most three searchers are supported for the measurement in FR2.21.A method comprising:receiving, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal;performing the measurement with the three searchers and a carrier specific scaling factor (CSSF) , wherein the CSSF is determined by one of the following:- determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers;- determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary is carriers equal to Nc-1; or- determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.22.A method comprising:transmitting, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, the measurement is performed with a carrier specific scaling factor (CSSF) , and the CSSF is one of the following:- a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers;- a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to Nc-1; or- a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.23.An apparatus comprising:means for receiving, from a network device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal;means for performing, the measurement with the three searchers and a carrier specific scaling factor (CSSF) , wherein the CSSF is determined by one of the following:- determining that a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers;- determining that a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- determining that a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to Nc-1; or- determining that a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and determining that a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.24.An apparatus comprising:means for transmitting, to a terminal device, an indication for using three searchers for measurement, wherein a searcher is for detecting a reference signal, the measurement is performed with a carrier specific scaling factor (CSSF) , and the CSSF is one of the following:- a first CSSF for a secondary carrier is equal to two, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) + (1 / (Nc-1) ) ) , the Nc is a number of secondary carriers;- a first CSSF for a secondary carrier is equal to 1 / (1 / 2+1 / Nc) , wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 1 / (1 / (2* (Nc-1) ) +1 / Nc) ;- a first CSSF for a secondary carrier is equal to one, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers equal to Nc-1; or- a first CSSF for a secondary carrier is equal to 0.5*Nc, wherein a neighbor cell measurement is required in the secondary carrier, and a second CSSF for a rest of secondary carriers is equal to 0.5*Nc.25.A computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the method of claim 21 or 22.