Measurement on component carriers
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 CN2025076249_13082026_PF_FP_ABST
Abstract
Description
MEASUREMENT ON COMPONENT CARRIERSFIELD
[0001] Various example embodiments relate to the field of communications, and in particular, to a device, method, apparatus and a computer readable storage medium associated with measurement on component carriers (CCs) .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 third generation partnership project (3GPP) or European telecommunications standards institute (ETSI) . Examples of such standards include the so-called 5th generation (5G) standard, 6th generation (6G) , or other standards promulgated by 3GPP.SUMMARY
[0004] In general, example embodiments of the present disclosure provide a solution for measurement on component carriers (CCs) .
[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 that, when executed by the at least one processor, cause the terminal device at least to determine at least one CC on the band to be measured based on at least a capability of the terminal device supporting intra-band non-collocated operation on the band; and determine a measurement period based on a number of the at least one CC on the band.
[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 that, when executed by the at least one processor, cause the network device at least to determine a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and determine a measurement period based on the number of the at least one CC on the band.
[0007] In a third aspect, there is provided a method implemented at a terminal device. The method comprises determining, at least one CC on the band to be measured based on at least a capability of the terminal device supporting intra-band non-collocated operation on the band; and determining, a measurement period based on a number of the at least one CC on the band.
[0008] In a fourth aspect, there is provided a method implemented at a network device. The method comprises determining, a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and determining, a measurement period based on the number of the at least one CC on the band.
[0009] In a fifth aspect, there is provided an apparatus comprising means for determining, at least one CC on the band to be measured based on at least a capability of a terminal device supporting intra-band non-collocated operation on the band; and means for determining, a measurement period based on a number of the at least one CC on the band.
[0010] In a sixth aspect, there is provided an apparatus comprising means for determining, a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and means for determining, a measurement period based on the number of the at least one CC on the band.
[0011] In a seventh aspect, there is provided a non-transitory computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the method according to any one of the above third to fourth aspect.
[0012] In an eighth aspect, there is provided a computer program comprising program instructions for causing an apparatus to perform at least the method according to any one of the above third to fourth aspect.
[0013] In a ninth aspect, there is provided an apparatus comprising first determining circuitry configured to determine, at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and second determining circuitry configured to determine, a measurement period based on a number of the at least one CC on the band.
[0014] In a tenth aspect, there is provided an apparatus comprising first determining circuitry configured to determine, a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and second determining circuitry configured to determine, a measurement period based on the number of the at least one CC on the band.
[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. 1 illustrates an example communication network in which embodiments of the present disclosure may be implemented;
[0018] Fig. 2 illustrate an example of measurement on CCs according to some embodiments of the present disclosure;
[0019] Fig. 3 illustrates a flowchart illustrating a process for measurement on CCs according to some embodiments of the present disclosure;
[0020] Fig. 4 illustrate an example of measurement on CCs according to some embodiments of the present disclosure;
[0021] Fig. 5 illustrates an example of measurement on CCs according to some embodiments of the present disclosure;
[0022] Fig. 6 illustrates a flowchart of a method implemented at a terminal device according to some embodiments of the present disclosure;
[0023] Fig. 7 illustrates a flowchart of a method implemented at a network device according to some embodiments of the present disclosure;
[0024] Fig. 8 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure; and
[0025] Fig. 9 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 the purpose of 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 NR radio, 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 fifth generation (5G) communication protocols, the future 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” refers 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 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] As used herein, 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, 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 (loT) 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] Principles and embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Reference is first made to Fig. 1, which illustrates an example communication system 100 in which embodiments of the present disclosure may be implemented. The system 100 includes a network device 110. The network device 110 serves a primary cell (PCell) 130, and several secondary cell (SCell) , for example, SCell 140, 150, and 160. The system 100 also includes one or more terminal devices, such as terminal devices 120, and 121. The terminal devices 120, 121 are capable of connecting and communicating in an UL and DL with the network device 110. In communication systems, an UL refers to a link in a direction from a terminal device to a network device, and a DL refers to a link in a direction from the network device to the terminal device.
[0038] It is to be understood that the number of network device, terminal devices and cells is only for the purpose of illustration without suggesting any limitations. The system 100 may include any suitable number of network device, terminal devices and cells 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] Each of the cells may correspond to a CC. The terminal device may measure CCs and transmit measurement report to the network device. Reference is now made to Fig. 2, which shows an example 200 of measurement on CCs according to some embodiments of the present disclosure. In order to reduce carrier-specific scaling factor (CSSF) which is used to determine the measurement delay requirement, minimizing measurements on serving CCs is expected. For example, as shown in Fig. 2, the terminal device 120 is configured with frequency range (FR) 1+FR2 carrier aggregation (CA) , where PCell is in FR1 and two SCells operating on CC2 and CC3 respectively are within the same FR2 band. The terminal device 120 may measure only one serving CC e.g. CC2 per frequency range (FR) 2 band as in Fig. 2. However, this is based on an assumption that CC2 and CC3 are collocated. If CC2 and CC3 are non-collocated, it would be risky to measure only one CC per band as at least the distances between the terminal device 120 and respective non-collocated cells can be observed different from UE side and hence the measurement status / result may not be the same on the SCell CC2 and SCell CC3. Measuring one CC on the band may not be a feasible solution for intra-band non-collocated scenario.
[0041] Among others, an issue addressed by some embodiments of the present disclosure is how to optimize measurement on CCs with intra-band non-collocated scenarios.
[0042] According to embodiments of the present disclosure, there is provided a solution for measurement on CCs. In an aspect of the solution, a terminal device determines at least one CC on the band to be measured based on at least a capability of the terminal device 120 supporting intra-band non-collocated operation on the band. The terminal device determines a measurement period based on a number of the at least one CC on the band. This solution may reduce measurement delay due to the properly determined CC (s) to be measured.
[0043] Reference is now made to Fig. 3, which shows a process 300 for measurement on CCs according to some embodiments of the present disclosure. For the purpose of discussion, the process 300 will be described with reference to Fig. 1. The process 300 may involve the terminal device 120 and the network device 110 as illustrated in Fig. 1.
[0044] At 320, the terminal device 120 may determine at least one CC on the band to be measured based on at least a capability of the terminal device 120 supporting intra-band non-collocated operation on the band. The capability of supporting intra-band non-collocated operation may be a per band combination capability. If it is indicated, it means the UE is capable of intra-band non-collocated operation on the band. In some embodiments, with the capability of supporting intra-band non-collocated operation, the terminal device 120 may be able to operate with separate receive chains over the intra-band carriers in the same way as the UE operation for inter-band carrier aggregation (CA) (where non-collocated scenario is assumed) , hence it is capable of fulfilling the maximum receive time difference / maximum transmit time difference (MRTD / MTTD) requirement and UE radio frequency (RF) requirements defined for inter-band CA.
[0045] At 330, the terminal device 120 may determine a measurement period based on a number of the at least one CC to be measured on the band.
[0046] In some embodiments, at 310, the terminal device 120 may transmit, to the network device 110, a capability of the terminal device 120 for supporting intra-band non-collocated operation on a band (e.g. intraBandNR-CA-non-collocated-r18 or a new BS signaling to be introduced for intra-band non-collocated scenarios in R19) . Accordingly, the network device 110 may receive the capability from the terminal device 120. This step may be optional. In some embodiments, the terminal device 120 may not transmit to the network device 110 of its capability. It means the terminal device 120 does not support intra-band non-collocated operation on the band, and the network device 110 may determine the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band based on not receiving capability information. In some embodiments, the terminal device 120 may transmit to the network device 110 a capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band.
[0047] At 340, the network device 110 may determine the number of the at least one CC on the band to be measured based on at least the capability of the terminal device 120 for whether supporting intra-band non-collocated operation on the band.
[0048] At 350, the network device 110 may determine the measurement period based on the number of the at least one CC to be measured on the band.
[0049] It is to be understood that the terminal device 120 and the network device 110 may determine the measurement period similarly.
[0050] In some embodiments, the terminal device 120 may perform measurement on the at least one CC on the band.
[0051] In some embodiments, the network device 110 may transmit, to the terminal device 120, a first indication of allowing the terminal device 120 to optimize or reduce the measurement on the band. Accordingly, the terminal device 120 may receive the first indication from the network device 110. In some embodiments, the first indication may enable an optimized CSSF operation. In some embodiments, the first indication may indicate allowing the terminal device 120 to measure one CC per band. In some embodiments, the network device 110 may not allow the terminal device 120 to optimize or reduce the measurement on the band if the network device 110 has received the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band.
[0052] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured by: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band.
[0053] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured by: determining all CCs configured with measurement (or all serving CCs, or non-collocated CCs) on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band. In this case, the terminal device 120 may assume non-collocated deployment on the indicated band combination, so that all the CCs configured with measurement need to be measured. In some embodiments, the terminal device 120 may determine all CCs configured with measurement on the band to be measured regardless of receiving the first indication.
[0054] In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band; or determining a number of all CCs configured with measurement on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band.
[0055] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured based on a determination of collocation type of CCs on the band. The collocation type comprises collocation deployment or non-collocation deployment. In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured based on a determination of collocation type of CCs on the band.
[0056] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band; or determining at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0057] In some embodiments, the determining at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band may further comprise at least one of the following: determining one CC on the band to be measured based on a determination of collocation deployment of CCs on the band; determining all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining one CC in each of a first number of contiguous CC groups and a second number of non-contiguous CCs on the band to be measured based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band. In this way, the measurement delay may be reduced when contiguous and non-contiguous carriers are on the same band.
[0058] In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band; or determining the number of at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0059] In some embodiments, the determining the number of at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band may further comprise at least one of the following: determining the number to be one based on a determination of collocation deployment of CCs on the band; determining the number to be a number of all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining the number to be a first number of contiguous CC groups on the band plus a second number of non-contiguous CCs on the band based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.
[0060] In some embodiments, the network device 110 may determine the collocation type of CCs on the band by itself. In some embodiments, the network device 110 may transmit, to the terminal device 120, a second indication indicating the collocation type of CCs on the band. Accordingly, the terminal device 120 may receive the second indication from the network device 110. The terminal device 120 may determine the collocation type of CCs on the band based on the second indication.
[0061] In some embodiments, the second indication may be noncollocatedTypeNR-CA in CellGroupConfig, which indicates collocation deployment if it is present or transmitted. In some embodiments, the second indication is not transmitted, which indicates non-collocation deployment. In some other embodiments, the second indication may indicate non-collocation deployment explicitly.
[0062] In some embodiments, the second indication may indicate the collocation type per carrier or per sub-block on the band. Note that in 3GPP release 18, the non-collocation type indication is per cell group i.e. if this is indicated, it indicates all the carriers in the cell group are collocated. Otherwise, non-collocated shall be assumed for all the carriers on the same band in the cell group. It is not possible to indicate the scenario where some carriers are collocated and others are non-collocated on the same band. However, in this embodiment, with the second indication, the terminal device 120 is able to measure one CC for those carriers collocated in one band, while to measure separate CCs non-collocated in one band.
[0063] In some embodiments, the second indication may comprise a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band. For example, 110 indicates CC1 and CC2 are collocated but not CC3. In some embodiments, the second indication may comprise at least one group of CCs that are collocated in the band. CCs that are not indicated may be assumed to be non-collocated. For example, the second indication comprises a group of CC1 / CC2, and a group of CC3 / CC4. It indicates CC1 and CC2 are collocated, CC3 and CC4 are collocated. In this way, the network device 110 may provide more precise information on the collocation type, so that the terminal device 120 may determine the CC (s) to be measured more properly. Based on the mixed collocated and non-collocated deployment on the band indicated by the network device 110, the terminal device 120 is able to determine whether to apply the optimized CSSF on the band. The CSSF is derived from the number of at least one CC to be measured on the band, and then used to scale the measurement delay requirement.
[0064] It is to be understood that the sequence of transmitting the capability, the first indication and / or the second indication is not limited.
[0065] In some embodiments, the collocation type of CCs on the band may be determined based on evaluation of CCs on the band. In some embodiments, the evaluation of CCs may comprise determine the contiguous or non-contiguous status of CCs. For non-contiguous CCs, the collocation type of CCs may be determined as non-collocated deployment, while for contiguous CCs, the collocation type of CCs may be determined as collocated deployment.
[0066] In some embodiments, the terminal device 120 and / or the network device 110 may determine the measurement period based on the number of the at least one CC by: determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.
[0067] In some embodiments, the process 300 may be applied in new radio-carrier aggregation (NR-CA) scenario. However, the process 300 may also be applied in general, for example, applied to evolved non-standalone dual connectivity (EN-DC) . The difference of the process for NR-CA and the process for EN-DC is different terminology of parameters. The capability of supporting intra-band non-collocated operation on the band may be replaced by a capability of supporting inter-band EN-DC with overlapping DL bands for EN-DC scenario (e.g. interBandMRDC-WithOverlapDL-Bands-r16) . The capability of supporting intra-band non-collocated operation on the band may further comprise requirementTypeIndication-r18. The second indication may be nonCollocatedTypeMRDC-r18. It is noted that the cells applied for the process 300 may be all NR cells, i.e. NR-CA scenario, or some of the cells are LTE cells, i.e. EN-DC.
[0068] With the process 300, it allows the terminal device 120 to adjust the optimized measurement considering the possible intra-band non-collocated deployment. This ensures necessary measurements on the non-collocated CCs on the same band.
[0069] Reference is now made to Fig. 4, which shows an example 400 of measurement on CCs according to some embodiments of the present disclosure. For the purpose of discussion, the example 400 will be described with reference to Fig. 1. The example 400 may involve the terminal device 120, the network device 110, the PCell 130, the SCell1 140, the SCell2 150, and the SCell3 160 as illustrated in Fig. 1.
[0070] The PCell 130 and the SCell1 140 may be operating on CC0, CC1 in one band (e.g. Band1) , the SCell2 150, the SCell3 160 may be operating on CC2, CC3 respectively on another FR1 / FR2 band (e.g. Band2) different from the band of the PCell 130 and the SCell1 140. The Band1 may be deployed in non-collocated scenarios up to operators, i.e. the band combination supports intra-band non-collocated deployment.
[0071] At 401, the terminal device 120 may be in connected mode with the PCell 130, the SCell1 140, the SCell2 150, and the SCell3 160.
[0072] At 402, the network device 110 may transmit a measurement configuration (e.g. MeasConfig) to the terminal device 120. The measurement configuration may be carried by an RRC reconfiguration message. The measurement configuration may comprise one measurement object (MO) for each of the serving cells. The measurement configuration may be similar to a normal configuration specified in technical specifications.
[0073] For example 1, at 411, the network device 110 may transmit a first indication to the terminal device 120. The first indication is corresponding to the first indication in the process 300.
[0074] At 412 and 413, when receiving the first indication, the terminal device 120 may measure single CC on one band. For example, the terminal device 120 may measure the PCell 130 and the SCell2 150 (by receiving synchronization signal block (SSB) ) . The terminal device 120 may determine which CC to measure based on a predefined rule.
[0075] At 414, the terminal device 120 may determine a value of CSSF based on a number of measured CC. The value may be further used to determine measurement delay. In this example, since only the PCell 130 and the SCell2 150 are measured, the value of CSSF = 2.
[0076] However, in intra-band non-collocated scenarios, measuring of single CC will lead to missing of the measurement on non-collocated carriers which may degrade the mobility performance.
[0077] For example 2, at 421, the terminal device 120 may transmit, to the network device 110, a capability of the terminal device 120 supporting intra-band non-collocated operation on the Band1 (or a band combination in the Band1) . For example, the capability may be indicated by intraBandNR-CA-non-collocated-r18 in 3GPP technical specifications release 18, or any other similar parameters defined in future release.
[0078] At 422, the network device 110 may transmit a first indication to the terminal device 120. This step is similar to step 411.
[0079] At 423 and 424, as the terminal device 120 supports intra-band non-collocated operation on the Band1, the terminal device 120 may assume that CCs on the Band1 are non-collocated and measure all the CCs configured with measurement on the Band1 (i.e. the CC of the PCell 130 and the CC of the SCell1 140) , regardless of the first indication, as the first indication is feasible or applicable only for intra-band collocated scenario.
[0080] At 425, as the terminal device 120 does not support intra-band non-collocated operation on the Band2, the terminal device 120 may measure one CC (e.g. the CC of the SCell2 150) on the Band2 according to the first indication.
[0081] At 426, the terminal device 120 may determine a value of CSSF based on a number of measured CC. This step may be similar to step 414. In this example, since the PCell 130, the SCell1 140 and the SCell2 150 are measured, the value of CSSF = 3.
[0082] For example 3, at 431, the terminal device 120 may transmit to the network device 110 a capability of the terminal device 120 supporting intra-band non-collocated operation on the Band1 (or a band combination in the Band1) . This step is similar to step 421.
[0083] At 432, the network device 110 may transmit a first indication to the terminal device 120. This step is similar to step 422.
[0084] At 433, the network device 110 may transmit a second indication to the terminal device 120. This second indication is corresponding to the second indication in the process 300. In this example, the second indication indicates collocated type deployment.
[0085] At 434, although the terminal device supports intra-band non-collocated operation on the Band1, based on the second indication, the terminal device 120 may measure one CC on the Band1 (e.g. the CC of the PCell 130) as the second indication indicates collocated type.
[0086] At 435, as the terminal device 120 does not support intra-band non-collocated operation on the Band2, the terminal device 120 may measure one CC on the Band2 (e.g. the CC of the SCell2 150) .
[0087] At 436, the terminal device 120 may determine a value of CSSF based on a number of measured CC. This step may be similar to step 426. In this example, since the PCell 130 and the SCell2 150 are measured, the value of CSSF = 2.
[0088] Reference is now made to Fig. 5, which shows an example 500 of measurement on CCs according to some embodiments of the present disclosure. For the purpose of discussion, the example 500 will be described with reference to Fig. 1. The example 500 may involve the terminal device 120, the network device 110, the PCell 130, the SCell1 140, the SCell2 150, and the SCell3 160 as illustrated in Fig. 1.
[0089] The PCell 130 may be operating on CC0 in one band (e.g. Band1) , The SCell1 140, the SCell2 150, the SCell3 160 may be operating on CC1, CC2, CC3 respectively on another FR1 / FR2 band (e.g. Band2) different from the band of the PCell 130. The SCell1 140 and the SCell2 150 may be contiguous and the SCell3 160 may be non-contiguous to other cells on the band2. The Band2 may be deployed in non-collocated scenarios up to operators, i.e. the band combination supports intra-band non-collocated deployment.
[0090] At 501, the terminal device 120 may be in connected mode with the PCell 130, the SCell1 140, the SCell2 150, and the SCell3 160.
[0091] At 502, the network device 110 may transmit a measurement configuration (e.g. MeasConfig) to the terminal device 120. This step is similar to step 403.
[0092] For example 1, at 511, the network device 110 may transmit, to the network device 110, a capability of the terminal device 120 supporting intra-band non-collocated operation on the Band2 (or a band combination in the Band2) . This step is similar to step 421.
[0093] At 512, the network device 110 may transmit a first indication to the terminal device 120. This step is similar to step 422.
[0094] At 513, the terminal device 120 may measure the PCell 130.
[0095] At 514 and 515, as the terminal device 120 supports intra-band non-collocated operation on the Band2, the terminal device 120 may evaluate CCs on the Band2. As the SCell1 140 and the SCell2 150 are contiguous carriers, it is sufficient to measure one of them. While SCell3 160 is non-contiguous to other carriers, the terminal device 120 may assume non-collocated on this band for non-contiguous carriers and measure SCell3 160 separately. Eventually, the terminal device 120 may measure SCell1 140 and SCell3 160 on the Band2, which may save efforts of measurement on the SCell2 150.
[0096] At 516, the terminal device 120 may determine a value of CSSF based on a number of measured CC. This step may be similar to step 426. In this example, since the PCell 130, the SCell1 140 and the SCell3 160 are measured, the value of CSSF = 3.
[0097] For example 2, at 521, the terminal device 120 may transmit to the network device 110 a capability of the terminal device 120 supporting intra-band non-collocated operation on the Band2 (or a band combination in the Band2) . This step is similar to step 431.
[0098] At 522, the network device 110 may transmit a first indication to the terminal device 120. This step is similar to step 432.
[0099] At 523, the network device 110 may transmit a second indication to the terminal device 120. This second indication is corresponding to the second indication in the process 300. In this example, the second indication indicates collocated deployment for CCs for each of the carriers on the Band2. For example, the second indication may comprise “111” , which indicates CC1 / CC2 / CC3 are collocated.
[0100] At 524, the terminal device 120 may measure the PCell 130.
[0101] At 525, although the terminal device supports intra-band non-collocated operation on the Band2, based on the second indication (e.g. “111” ) , the terminal device 120 may measure one CC on the Band2 (e.g. the CC of the SCell2 150) .
[0102] At 526, the terminal device 120 may determine a value of CSSF based on a number of measured CC. This step may be similar to step 436. In this example, since the PCell 130 and the SCell2 150 are measured, the value of CSSF = 2.
[0103] Fig. 6 shows a flowchart of an example method 600 implemented at a terminal 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 terminal device 120 with reference to Fig. 1.
[0104] At block 610, the terminal device 120 may determine at least one CC on the band to be measured based on at least a capability of the terminal device 120 supporting intra-band non-collocated operation on the band. At block 620, the terminal device 120 may determine a measurement period based on a number of the at least one CC on the band.
[0105] In some embodiments, the terminal device 120 may transmit, to a network device, a capability of the terminal device 120 for supporting intra-band non-collocated operation on a band. In some embodiments, the terminal device 120 may perform measurement on the at least one CC on the band.
[0106] In some embodiments, the terminal device 120 may receive, from the network device, a first indication of allowing the terminal device 120 to optimize or reduce the measurement on the band. In some embodiments, the first indication may indicate allowing the terminal device 120 to measure one CC per band.
[0107] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band; or determining all CCs configured with measurement on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band.
[0108] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured based on a determination of collocation type of CCs on the band. The collocation type comprises collocation deployment or non-collocation deployment.
[0109] In some embodiments, the terminal device 120 may determine at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device 120 for not supporting intra-band non-collocated operation on the band; or determining at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0110] In some embodiments, the determining at least one CC on the band to be measured based on the capability of the terminal device 120 for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band may further comprise at least one of the following: determining one CC on the band to be measured based on a determination of collocation deployment of CCs on the band; determining all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining one CC in each of a first number of contiguous CC groups and a second number of non-contiguous CCs on the band to be measured based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.
[0111] In some embodiments, the terminal device 120 may receive, from the network device, a second indication indicating the collocation type of CCs on the band. The collocation type of CCs on the band is determined based on the second indication.
[0112] In some embodiments, the second indication may comprise at least one of the following: a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; or at least one group of CCs that are collocated in the band.
[0113] In some embodiments, the collocation type of CCs on the band may be determined based on evaluation of CCs on the band.
[0114] In some embodiments, the terminal device 120 may determine the measurement period based on the number of the at least one CC by: determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.
[0115] Fig. 7 shows a flowchart of an example method 700 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of the network device 110 with reference to Fig. 1.
[0116] At block 710, the network device 110 may determine a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band. At block 720, the network device 110 may determine a measurement period based on the number of the at least one CC on the band.
[0117] In some embodiments, the network device 110 may receive, from the terminal device, a capability of the terminal device for supporting intra-band non-collocated operation on a band. In some embodiments, the network device 110 may transmit, to the terminal device, a first indication of allowing the terminal device to optimize or reduce the measurement on the band. In some embodiments, the first indication may indicate allowing the terminal device to measure one CC per band.
[0118] In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining a number of all CCs configured with measurement on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band.
[0119] In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured based on a determination of collocation type of CCs on the band. The collocation type comprises collocation deployment or non-collocation deployment.
[0120] In some embodiments, the network device 110 may determine the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0121] In some embodiments, the determining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band may further comprise at least one of the following: determining the number to be one based on a determination of collocation deployment of CCs on the band; determining the number to be a number of all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining the number to be a first number of contiguous CC groups on the band plus a second number of non-contiguous CCs on the band based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.
[0122] In some embodiments, the network device 110 may determine the collocation type of CCs on the band by itself. In some embodiments, the network device 110 may transmit, to the terminal device, a second indication indicating the collocation type of CCs on the band.
[0123] In some embodiments, the second indication may comprise at least one of the following: a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; or at least one group of CCs that are collocated in the band.
[0124] In some embodiments, the network device 110 may determine the measurement period based on the number of the at least one CC by: determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.
[0125] In some embodiments, an apparatus capable of performing any of the method 600 (for example, the terminal 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.
[0126] In some embodiments, the apparatus comprises: means for determining, at least one CC on the band to be measured based on at least a capability of the terminal device supporting intra-band non-collocated operation on the band; and means for determining, a measurement period based on a number of the at least one CC on the band.
[0127] In some embodiments, the apparatus further comprises means for transmitting, to a network device, a capability of the terminal device for supporting intra-band non-collocated operation on a band. In some embodiments, the apparatus further comprises means for performing measurement on the at least one CC on the band.
[0128] In some embodiments, the apparatus further comprises means for receiving, from the network device, a first indication of allowing the terminal device to optimize or reduce the measurement on the band. In some embodiments, the first indication may indicate allowing the terminal device to measure one CC per band.
[0129] In some embodiments, the apparatus further comprises means for determining at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining all CCs configured with measurement on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band.
[0130] In some embodiments, the apparatus further comprises means for determining at least one CC on the band to be measured based on a determination of collocation type of CCs on the band. The collocation type comprises collocation deployment or non-collocation deployment.
[0131] In some embodiments, the apparatus further comprises means for determining at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0132] In some embodiments, the determining at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band may further comprise at least one of the following: determining one CC on the band to be measured based on a determination of collocation deployment of CCs on the band; determining all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining one CC in each of a first number of contiguous CC groups and a second number of non-contiguous CCs on the band to be measured based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.
[0133] In some embodiments, the apparatus further comprises means for receiving, from the network device, a second indication indicating the collocation type of CCs on the band. The collocation type of CCs on the band is determined based on the second indication.
[0134] In some embodiments, the second indication may comprise at least one of the following: a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; or at least one group of CCs that are collocated in the band.
[0135] In some embodiments, the collocation type of CCs on the band may be determined based on evaluation of CCs on the band.
[0136] In some embodiments, the apparatus further comprises means for determining the measurement period based on the number of the at least one CC by: determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.
[0137] In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 600. In some embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
[0138] In some embodiments, an apparatus capable of performing any of the method 700 (for example, the network device 110) may comprise means for performing the respective steps of the method 700. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0139] In some embodiments, the apparatus comprises: means for determining, a number of at least one CC on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; and means for determining, a measurement period based on the number of the at least one CC on the band.
[0140] In some embodiments, the apparatus further comprises means for receiving, from a terminal device, a capability of the terminal device for supporting intra-band non-collocated operation on a band.
[0141] In some embodiments, the apparatus further comprises means for transmitting, to the terminal device, a first indication of allowing the terminal device to optimize or reduce the measurement on the band. In some embodiments, the first indication may indicate allowing the terminal device to measure one CC per band.
[0142] In some embodiments, the apparatus further comprises means for determining the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining a number of all CCs configured with measurement on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band.
[0143] In some embodiments, the apparatus further comprises means for determining the number of at least one CC on the band to be measured based on a determination of collocation type of CCs on the band, wherein the collocation type comprises collocation deployment or non-collocation deployment.
[0144] In some embodiments, the apparatus further comprises means for determining the number of at least one CC on the band to be measured by at least one of the following: determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; or determining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.
[0145] In some embodiments, the determining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band further comprises at least one of the following: determining the number to be one based on a determination of collocation deployment of CCs on the band; determining the number to be a number of all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; or determining the number to be a first number of contiguous CC groups on the band plus a second number of non-contiguous CCs on the band based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.
[0146] In some embodiments, the apparatus further comprises means for determining the collocation type of CCs on the band by itself.
[0147] In some embodiments, the apparatus further comprises means for transmitting, to the terminal device, a second indication indicating the collocation type of CCs on the band.
[0148] In some embodiments, the second indication may comprise at least one of the following: a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; or at least one group of CCs that are collocated in the band.
[0149] In some embodiments, the apparatus further comprises means for determining the measurement period based on the number of the at least one CC by: determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.
[0150] In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 700. In some embodiments, the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
[0151] Some embodiments of the present disclosure can be implemented into 3GPP TS 38.133 or 38.331, an example is shown below.
[0152] 9.2.3.1 Requirements for FR1
[0153] For a UE supporting [the capability of measuring one CC per band] and network enables this function, for one single intra-frequency layer in a band, during each layer 1 measurement period, the UE shall be capable of performing SS-RSRP, SS-RSRQ, and SS-SINR measurements for at least: - 8 identified cells, and - 14 SSBs with different SSB index and / or PCI on the intra-frequency layer, where the number of SSBs in the serving cell (except for the SCell) is not smaller than the number of configured RLM-RS SSB resources. where this single intra-frequency layer shall be: - PCC when UE is configured with SA NR operation mode with PCC in the band; or - PSCC when UE is configured with EN-DC with PSCC in the band; or - PSCC when UE is configured with NR-DC with PSCC in the band; or - One of the SCCs on which UE is configured to report SSB based measurements when neither PCC nor PSCC is in the same band, so that the selected SCC shall be an SCC where the UE is configured with SS-RSRP measurement reporting if such SCC exists, otherwise the selected SCC is determined by UE implementation.
[0154] Provided that UE does not support intra-band non-collocated scenarios or UE supports intra-band non-collocated scenarios and is indicated with collocation operation.
[0155] Otherwise:
[0156] For each intra-frequency layer, during each layer 1 measurement period, the UE shall be capable of performing SS-RSRP, SS-RSRQ, and SS-SINR measurements for at least: - 8 identified cells, and - 14 SSBs with different SSB index and / or PCI on the intra-frequency layer, where the number of SSBs in the serving cell (except for the SCell) is not smaller than the number of configured RLM-RS SSB resources.
[0157] Fig. 8 is a simplified block diagram of a device 800 that is suitable for implementing embodiments of the present disclosure. The device 800 may be provided to implement the communication device, for example the network device 110 or the terminal device 120 as shown in Fig. 1. As shown, the device 800 includes one or more processors 810, one or more memories 820 coupled to the processor 810, and one or more communication modules 840 coupled to the processor 810.
[0158] The communication module 840 is for bidirectional communications. The communication module 840 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0159] The processor 810 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 800 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.
[0160] The memory 820 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) 824, 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) 822 and other volatile memories that will not last in the power-down duration.
[0161] A computer program 830 includes computer executable instructions that are executed by the associated processor 810. The program 830 may be stored in the ROM 824. The processor 810 may perform any suitable actions and processing by loading the program 830 into the RAM 822.
[0162] The communication module 840 is for bidirectional communications. The communication module 840 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0163] The embodiments of the present disclosure may be implemented by means of the program 830 so that the device 800 may perform any process of the disclosure as discussed with reference to Figs. 2 to 7. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0164] In some embodiments, the program 830 may be tangibly contained in a computer readable medium which may be included in the device 800 (such as in the memory 820) or other storage devices that are accessible by the device 800. The device 800 may load the program 830 from the computer readable medium to the RAM 822 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. 9 shows an example of the computer readable medium 900 in form of CD or DVD. The computer readable medium has the program 830 stored thereon.
[0165] 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.
[0166] 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 method as described above with reference to Figs. 2-7. 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.
[0167] 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.
[0168] 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.
[0169] 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) .
[0170] 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.
[0171] 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:determine at least one component carrier (CC) on the band to be measured based on at least a capability of the terminal device supporting intra-band non-collocated operation on the band; anddetermine a measurement period based on a number of the at least one CC on the band.2.The terminal device of claim 1, wherein the terminal device is further caused to:transmit, to a network device, a capability of the terminal device for supporting intra-band non-collocated operation on a band.3.The terminal device of claim 1or 2, wherein the terminal device is further caused to:perform measurement on the at least one CC on the band.4.The terminal device of any of claims 1-3, wherein the terminal device is further caused to:receive, from a network device, a first indication of allowing the terminal device to optimize or reduce the measurement on the band.5.The terminal device of any of claims 1-4, wherein the terminal device is caused to determine at least one CC on the band to be measured by at least one of the following:determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; ordetermining all CCs configured with measurement on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band.6.The terminal device of any of claims 1-4, wherein the terminal device is further caused to determine at least one CC on the band to be measured based on a determination of collocation type of CCs on the band, wherein the collocation type comprises collocation deployment or non-collocation deployment.7.The terminal device of claim 6, wherein the terminal device is caused to determine at least one CC on the band to be measured by at least one of the following:determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; ordetermining at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.8.The terminal device of claim 7, wherein the determining at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band further comprises at least one of the following:determining one CC on the band to be measured based on a determination of collocation deployment of CCs on the band;determining all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; ordetermining one CC in each of a first number of contiguous CC groups and a second number of non-contiguous CCs on the band to be measured based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.9.The terminal device of any of claims 6-8, wherein the terminal device is further caused to:receive, from the network device, a second indication indicating the collocation type of CCs on the band; and wherein the collocation type of CCs on the band is determined based on the second indication.10.The terminal device of claim 9, wherein the second indication comprises at least one of the following:a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; orat least one group of CCs that are collocated in the band.11.The terminal device of any of claims 6-8, wherein the collocation type of CCs on the band is determined based on evaluation of CCs on the band.12.The terminal device of any of claims 1-11, wherein the terminal device is caused to determine the measurement period based on the number of the at least one CC by:determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.13.The terminal device of claim 4, wherein the first indication indicates allowing the terminal device to measure one CC per band.14.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:determine a number of at least one component carrier (CC) on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; anddetermine a measurement period based on the number of the at least one CC on the band.15.The network device of claim 14, wherein the network device is further caused to:receive, from the terminal device, a capability of the terminal device for supporting intra-band non-collocated operation on a band.16.The network device of claim 14 or 15, wherein the network device is further caused to:transmit, to the terminal device, a first indication of allowing the terminal device to optimize or reduce the measurement on the band.17.The network device of any of claims 14-16, wherein the network device is caused to determine the number of at least one CC on the band to be measured by at least one of the following:determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; ordetermining a number of all CCs configured with measurement on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band.18.The network device of any of claims 14-16, wherein the network device is further caused to determine the number of at least one CC on the band to be measured based on a determination of collocation type of CCs on the band, wherein the collocation type comprises collocation deployment or non-collocation deployment.19.The network device of claim 18, wherein the network device is caused to determine the number of at least one CC on the band to be measured by at least one of the following:determining one CC on the band to be measured based on the capability of the terminal device for not supporting intra-band non-collocated operation on the band; ordetermining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band.20.The network device of claim 19, wherein the determining the number of at least one CC on the band to be measured based on the capability of the terminal device for supporting intra-band non-collocated operation on the band and a determination of collocation type of CCs on the band further comprises at least one of the following:determining the number to be one based on a determination of collocation deployment of CCs on the band;determining the number to be a number of all CCs configured with measurement on the band to be measured based on a determination of non-collocation deployment of CCs on the band; ordetermining the number to be a first number of contiguous CC groups on the band plus a second number of non-contiguous CCs on the band based on a determination of collocation deployment of the first number of contiguous CC groups on the band and non-collocation deployment of the second number of non-contiguous CCs on the band.21.The network device of any of claims 18-20, wherein the network device is further caused to:determine the collocation type of CCs on the band by itself.22.The network device of claim 21, wherein the network device is further caused to:transmit, to the terminal device, a second indication indicating the collocation type of CCs on the band.23.The network device of claim 22, wherein the second indication comprises at least one of the following:a bitmap with each bit corresponding to one CC on the band indicating if the CC is collocated with other CCs on the band; orat least one group of CCs that are collocated in the band.24.The network device of any of claims 14-23, wherein the network device is caused to determine the measurement period based on the number of the at least one CC by:determining a value of carrier specific scaling factor (CSSF) based on the number of the at least one CC.25.The network device of claim 16, wherein the first indication indicates allowing the terminal device to measure one CC per band.26.A method comprising:determining at least one component carrier (CC) on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; anddetermining a measurement period based on a number of the at least one CC on the band.27.A method comprising:determining a number of at least one component carrier (CC) on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; anddetermining a measurement period based on the number of the at least one CC on the band.28.An apparatus comprising:means for determining at least one component carrier (CC) on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; andmeans for determining a measurement period based on a number of the at least one CC on the band.29.An apparatus comprising:means for determining a number of at least one component carrier (CC) on the band to be measured based on at least a capability of a terminal device for whether supporting intra-band non-collocated operation on the band; andmeans for determining a measurement period based on the number of the at least one CC on the band.30.A computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the method of claim 26 or 27.