Radio link quality evaluation
Patent Information
- Application Number
- PCT/CN2025/085924
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-10-01
Smart Images

Figure CN2025085924_01102026_PF_FP_ABST
Abstract
Description
RADIO LINK QUALITY EVALUATIONFIELD
[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 radio link quality evaluation.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 radio link quality evaluation.
[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 first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; and determine, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[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 transmit, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[0007] In a third aspect, there is provided a method implemented at a terminal device. The method comprises determining first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; and determining, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[0008] In a fourth aspect, there is provided a method implemented at a network device. The method comprises transmitting, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[0009] In a fifth aspect, there is provided an apparatus comprising means for determining first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; and means for determining, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[0010] In a sixth aspect, there is provided an apparatus comprising means for transmitting, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[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 first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; and second determining circuitry configured to determine, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[0014] In a tenth aspect, there is provided an apparatus comprising transmitting circuitry configured to transmit, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[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 illustrates a flowchart illustrating a process for radio link quality evaluation according to some embodiments of the present disclosure;
[0019] Fig. 3 illustrate an example of radio link quality evaluation according to some embodiments of the present disclosure;
[0020] Fig. 4 illustrate an example of radio link quality evaluation according to some embodiments of the present disclosure;
[0021] Fig. 5 illustrates an example of radio link quality evaluation according to some embodiments of the present disclosure;
[0022] Fig. 6 illustrates an example of radio link quality evaluation according to some embodiments of the present disclosure;
[0023] Fig. 7 illustrates a flowchart of a method implemented at a terminal device according to some embodiments of the present disclosure;
[0024] Fig. 8 illustrates a flowchart of a method implemented at a network device according to some embodiments of the present disclosure;
[0025] Fig. 9 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure; and
[0026] Fig. 10 illustrates a block diagram of an example computer readable medium in accordance with some embodiments of the present disclosure.
[0027] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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 and 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.
[0039] 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.
[0040] 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.
[0041] Evaluating downlink radio link quality may be based on reference signals (RSs) , for example, channel state information (CSI) -RSs and / or synchronization signal block (SSB) . For radio link monitoring (RLM) , the reference signals may be referred to as RLM-RSs. A UE may constantly monitor the RLM-RSs for purpose of RLM. The radio link quality evaluation may also be applied to beam failure detection (BFD) or candidate beam detection (CBD) .
[0042] Sub-band full duplex (SBFD) is a mode of operation in unpaired spectrum where separate set of resource blocks within a time division duplex (TDD) carrier are used for UL and DL transmission simultaneously. SBFD symbols (or slots) refer to those symbols (or slots) where both a UL and one or more DL sub-bands are simultaneously available, and non-SBFD symbols refer to unidirectional symbols. These SBFD symbols and non-SBFD symbols are considered as different symbol types. Channel conditions e.g. SINR in DL (non-SBFD) symbols and SBFD symbols may be quite different due to the UE-to-UE cross-link interference (CLI) in SBFD symbols.
[0043] The RSs may be configured to take place during SBFD symbols and / or non-SBFD symbols. Among others, an issue addressed by some embodiments of the present disclosure is how to evaluate radio link quality for different symbol types (SBFD symbol or non-SBFD symbol) .
[0044] According to embodiments of the present disclosure, there is provided a solution for radio link quality evaluation. In an aspect of the solution, a terminal device determines first configuration information associated with a first symbol type and second configuration information associated with a second symbol type. The terminal device determines, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality. The evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type. This solution may improve accuracy of radio link quality evaluation.
[0045] Reference is now made to Fig. 2, which shows a process 200 for radio link quality evaluation 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 200 may involve the terminal device 120 and the network device 110 as illustrated in Fig. 1.
[0046] At 220, the terminal device 120 may determine first configuration information associated with a first symbol type and second configuration information associated with a second symbol type.
[0047] In some embodiments, the first symbol type may be a SBFD symbol type, and the second symbol type may be a non-SBFD symbol type or DL symbol type. In some embodiments, the “symbol” may be replaced with slot or any other time unit.
[0048] In some embodiments, the first configuration information comprises at least one of a first threshold (e.g. Q_in) for the first symbol type and a second threshold (e.g. Q_out) for the first symbol type. In some embodiments, the second configuration information comprises at least one of a third threshold (e.g. Q_in) for the second symbol type and a fourth threshold (e.g. Q_out) for the second symbol type.
[0049] In some embodiments, the first threshold may be a level at which a radio link is able to be reliable received. In some embodiments, the second threshold may be a level at which a radio link is not able to be reliable received. In some embodiments, the third threshold may be a level at which a radio link is able to be reliable received. In some embodiments, the fourth threshold may be a level at which a radio link is not able to be reliable received.
[0050] In some embodiments, the first threshold corresponds to a first in-sync block error rate (BLER_in) . In some embodiments, the second threshold corresponds to a first out-of-sync block error rate (BLER_out) . In some embodiments, the third threshold corresponds to a second BLER_in. In some embodiments, the fourth threshold corresponds to a second BLER_out.
[0051] In some embodiments, the first BLER_in may be same as or different from the second BLER_in. In some embodiments, the first BLER_out may be same as or different from the second BLER_out. For example, the first BLER_in for SBFD symbols may be higher than the second BLER_in for non-SBFD symbols to compensate for potential CLI impact.
[0052] In some embodiments, the first configuration information comprises the first BLER_in and the first BLER_out. In some embodiments, the second configuration information comprises the second BLER_in and the second BLER_out. The terminal device 120 may determine the thresholds based on the BLER.
[0053] In some embodiments, the first configuration information may comprise: a value of the first threshold, a value of the second threshold, an offset of the first threshold, an offset of the second threshold, or any combination thereof. For example, the first configuration may directly indicate a value of the first threshold, or indicate an offset to a configured value or an existing threshold. The indicated value may be a BLER value, or dB value, etc.
[0054] In some embodiments, the second configuration information may comprise: a value of the third threshold, a value of the fourth threshold, an offset of the third threshold, an offset of the fourth threshold, or any combination thereof.
[0055] At 230, the terminal device 120 may determine, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality.
[0056] In some embodiments, the radio link quality may be downlink radio link quality. The radio link quality may also be referred to as channel quality.
[0057] In some embodiments, the evaluation period may comprise at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type. For example, the evaluation period may comprise reference signal resources configured on the first set of symbols or the second set of symbols. The evaluation period may be a first type evaluation period (also referred to as in-sync evaluation period) , or a second type evaluation period (also referred to as out-of-sync evaluation period) .
[0058] In some embodiments, the radio link quality may comprise signal to noise ratio (SNR) , signal to interference plus noise ratio (SINR) , reference signal received power (RSRP) (e.g. layer 1-RSRP) , reference signal received quality (RSRQ) or any combination thereof.
[0059] In some embodiments, the first evaluation result may be used for radio link monitoring, beam failure detection, or candidate beam detection.
[0060] In some embodiments, evaluating the radio link quality may comprise performing measurement on at least one RS and compare the measurement result on the at least one RS with the threshold.
[0061] Optionally, at 210, the network device 110 may transmit, to the terminal device 120, the first configuration information associated with the first symbol type or the second configuration information associated with the second symbol type. It is to be understood that the first configuration information or the second configuration information are used for determining the first evaluation result based on evaluating radio link quality.
[0062] Additionally or alternatively, the first configuration information and / or the second configuration information may be pre-configured in specifications. For example, the first configuration information may be received from the network device, and the second configuration information may be pre-configured. For another example, default values may be defined in specifications, the terminal device 120 may use the default values if no information is received from the network device 110, or the terminal device 120 may use values received from the network device 110.
[0063] In some embodiments, the terminal device 120 may determine the first evaluation result by: determining the radio link quality within a first type evaluation period to be better based on determining that the radio link quality is larger than or equal to the first threshold or the third threshold; or determining the radio link quality within a second type evaluation period to be worse based on determining that the radio link quality is smaller than or equal to the second threshold or the fourth threshold. The radio link quality may be determined based on evaluating reference signal occurrences.
[0064] In some embodiments, the evaluation period may be a first type evaluation period, and the evaluation period may comprise the first set of symbols and may not comprise the second set of symbols (for example, reference signal resources are configured on the first set of symbols only) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0065] In some embodiments, the evaluation period may be a second type evaluation period, and the evaluation period may comprise the first set of symbols and may not comprise the second set of symbols (for example, reference signal resources are configured on the first set of symbols only) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0066] In some embodiments, the evaluation period may be a first type evaluation period, and the evaluation period may comprise the second set of symbols and may not comprise the first set of symbols (for example, reference signal resources are configured on the second set of symbols only) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0067] In some embodiments, the evaluation period may be a second type evaluation period, and the evaluation period may comprise the second set of symbols and may not comprise the first set of symbols (for example, reference signal resources are configured on the second set of symbols only) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0068] In some embodiments, the terminal device 120 may receive, from a network device, a first indication of a symbol type to be evaluated. The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on one of the first set of symbols or the second set of symbols with the symbol type to be evaluated. It is to be understood that reference signal resources may be configured on both the first set of symbols and the second set of symbols, and the evaluation is only based on the indicated set.
[0069] In some embodiments, the first indication may indicate the first symbol type, and the evaluation period may be a first type evaluation period. The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0070] In some embodiments, the first indication may indicate the first symbol type, and the evaluation period may be a second type evaluation period. The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0071] In some embodiments, the first indication may indicate the second symbol type, and the evaluation period may be a first type evaluation period. The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0072] In some embodiments, the first indication may indicate the second symbol type, and the evaluation period may be a second type evaluation period. The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0073] With the above embodiments, radio link quality may be evaluated for one type of symbols, and different symbol type corresponds to different threshold. Evaluation accuracy may be improved.
[0074] In some embodiments, the evaluation period may be a first type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols (for example, reference signal resources are configured on the first set of symbols and the second set of symbols) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the first threshold or the third threshold.
[0075] In this case, the terminal device 120 may measure the first symbol type and the second symbol type jointly and evaluate using a same threshold for both types. For example, the first threshold is larger than the third threshold. Evaluating the radio link quality according to the first threshold may ensure the condition is met for all symbol types. Evaluating the radio link quality according to the third threshold may ensure the condition is met at least for the second symbol type.
[0076] In some embodiments, the evaluation period may be a second type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols (for example, reference signal resources are configured on the first set of symbols and the second set of symbols) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the second threshold or the fourth threshold.
[0077] For example, the second threshold is larger than the fourth threshold. Evaluating the radio link quality according to the fourth threshold may ensure the condition is met for all symbol types. Evaluating the radio link quality according to the second threshold may ensure the condition is met at least for the first symbol type.
[0078] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols (for example, reference signal resources are configured on the first set of symbols and the second set of symbols) . The terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to one of the first configuration information or the second configuration information associated with a symbol type having a higher number of occurrences during the evaluation period. In this case, the terminal device 120 may select or decide which Q_in / Q_out configuration to use.
[0079] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols (for example, reference signal resources are configured on the first set of symbols and the second set of symbols) . The terminal device 120 may determine the first evaluation result by: determining a second evaluation result based on evaluating the radio link quality on the first set of symbols according to the first configuration information; determining a third evaluation result based on evaluating the radio link quality on the second set of symbols according to the second configuration information; and determining the first evaluation result based on the second evaluation result and the third evaluation result. In this case, the terminal device 120 may measure the first symbol type and the second symbol type separately and evaluate using different thresholds for each type.
[0080] In some embodiments, determining the first evaluation result based on the second evaluation result and the third evaluation result may comprise: determining the first evaluation result to be a positive result based on the second evaluation result and the third evaluation result are both positive results, and otherwise determining the first evaluation result to be a negative result. For example, determining that the radio link quality becomes better if the radio link quality in SBFD symbols becomes better than Q_in for SBFD symbols (i.e. the first threshold) and the radio link quality in non-SBFD symbols becomes better than Q_in for non-SBFD symbols (i.e. the third threshold) ; or, determining that the radio link quality becomes worse if the radio link quality in SBFD symbols becomes worse than Q_out for SBFD symbols (i.e. the second threshold) and the radio link quality in non-SBFD symbols becomes worse than Q_out for non-SBFD symbols (i.e. the fourth threshold) .
[0081] In some embodiments, the terminal device 120 may determine the first evaluation result based on supporting a capability of measurement on the first symbol type and the second symbol type separately. It is to be understood that if the terminal device 120 supports the capability, the terminal device may evaluate the first symbol type and the second symbol type separately, if the terminal device 120 does not support the capability, the terminal device may evaluate the first symbol type and the second symbol type jointly.
[0082] In some embodiments, the terminal device 120 may transmit, to the network device 110, a second indication of the capability of measurement on the first symbol type and the second symbol type separately. The network device 110 may determine which method the terminal device 120 may apply for the evaluation based on the capability.
[0083] In some embodiments, the terminal device 120 may receive, from the network device 110, third configuration information of the evaluation period.
[0084] With the process 200, radio link quality evaluation is performed based on different thresholds for different symbol types. Therefore, accuracy of the evaluation may be improved.
[0085] Reference is now made to Fig. 3, which shows an example 300 of radio link evaluation according to some embodiments of the present disclosure. For the purpose of discussion, the example 300 will be described with reference to Fig. 1. The example 300 may involve the terminal device 120 as illustrated in Fig. 1.
[0086] At 310, the terminal device 120 monitors at least one RLM-RS that exclusively overlaps with SBFD or non-SBFD symbols. The terminal device 120 may be configured with at least one RLM-RS that only overlaps with one symbol type. Or alternatively, the network device 110 may explicitly configure the terminal device 120 to use only RLM-RS occurrences that belong to certain symbol type.
[0087] At 320, if the at least one RLM-RS overlaps with SBFD symbols, the terminal device 120 evaluates radio link quality based on Q_in and Q_out thresholds for SBFD symbols (corresponding to the first threshold and the second threshold in the process 200) .
[0088] At 330, if the at least one RLM-RS overlaps with non-SBFD symbols, the terminal device 120 evaluates radio link quality based on Q_in and Q_out thresholds for non-SBFD symbols (corresponding to the third threshold and the fourth threshold in the process 200) .
[0089] Reference is now made to Fig. 4, which shows an example 400 of radio link evaluation 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 as illustrated in Fig. 1.
[0090] At 410, the terminal device 120 monitors at least one RLM-RS that overlaps with SBFD and non-SBFD symbols.
[0091] At 420, the terminal device 120 measures jointly SBFD and non-SBFD occurrences.
[0092] At 430, for in-sync evaluation, the terminal device 120 evaluates radio link quality based on Q_in threshold for SBFD symbols (corresponding to the first threshold in the process 200) .
[0093] At 440, for out-of-sync evaluation, the terminal device 120 evaluates radio link quality based on Q_out threshold for non-SBFD symbols (corresponding to the fourth threshold in the process 200) .
[0094] Reference is now made to Fig. 5, which shows an example 500 of radio link evaluation 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 as illustrated in Fig. 1.
[0095] At 510, the terminal device 120 monitors at least one RLM-RS that overlaps with SBFD and non-SBFD symbols.
[0096] At 520, the terminal device 120 measures separately SBFD and non-SBFD occurrences.
[0097] At 530, if the at least one RLM-RS overlaps with SBFD symbols, the terminal device 120 evaluates radio link quality based on Q_in and Q_out thresholds for SBFD symbols (corresponding to the first threshold and the second threshold in the process 200) .
[0098] At 540, if the at least one RLM-RS overlaps with non-SBFD symbols, the terminal device 120 evaluates radio link quality based on Q_in and Q_out thresholds for non-SBFD symbols (corresponding to the third threshold and the fourth threshold in the process 200) .
[0099] Reference is now made to Fig. 6, which shows an example 600 of radio link evaluation according to some embodiments of the present disclosure. For the purpose of discussion, the example 600 will be described with reference to Fig. 1. The example 600 may involve the network device 110 and the terminal device 120 as illustrated in Fig. 1.
[0100] At 610, the network device 110 transmits, to the terminal device 120, a configuration of CSI-RS across SBFD and non-SBFD symbols as RLM-RS for RLM.
[0101] At 620, the network device 110 transmits, to the terminal device 120, a configuration of different Q_in and Q_out for non-SBFD and SBFD slots.
[0102] Alternatively, at 630, the terminal device 120 assumes different Q_in and Q_out for SBFD and non-SBFD symbols as defined in specifications.
[0103] At 640, the terminal device 120 evaluates radio link quality using Q_in and Q_out for current symbol type.
[0104] At 650, the terminal device 120 performs RLM. This may comprise: counting consecutive in_sync and out_of_sync, starting and restarting timers, etc.
[0105] Fig. 7 shows a flowchart of an example method implemented at a terminal device in accordance with some embodiments. For the purpose of discussion, an example method 700 will be described from the perspective of the terminal device 120 with reference to Fig. 1.
[0106] At block 710, the terminal device 120 may determine first configuration information associated with a first symbol type and second configuration information associated with a second symbol type.
[0107] At block 720, the terminal device 120 may determine, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[0108] In some embodiments, the radio link quality may comprise SNR, SINR, PSRP, or any combination thereof. In some embodiments, the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection. In some embodiments, the first symbol type is a SBFD symbol type, and the second symbol type is a non-SBFD symbol type.
[0109] In some embodiments, the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type. In some embodiments, the second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.
[0110] In some embodiments, the first threshold is a level at which a radio link is able to be reliable received. In some embodiments, the second threshold is a level at which a radio link is not able to be reliable received. In some embodiments, the third threshold is a level at which a radio link is able to be reliable received. In some embodiments, the fourth threshold is a level at which a radio link is not able to be reliable received.
[0111] In some embodiments, the first threshold corresponds to a first in-sync block error rate (BLER_in) . In some embodiments, the second threshold corresponds to a first out-of-sync block error rate (BLER_out) . In some embodiments, the third threshold corresponds to a second BLER_in. In some embodiments, the fourth threshold corresponds to a second BLER_out.
[0112] In some embodiments, the first BLER_in is same as or different from the second BLER_in. In some embodiments, the first BLER_out is same as or different from the second BLER_out.
[0113] In some embodiments, the first configuration information comprises the first BLER_in and the first BLER_out. In some embodiments, the second configuration information comprises the second BLER_in and the second BLER_out.
[0114] In some embodiments, the first configuration information may comprise: a value of the first threshold, a value of the second threshold, an offset of the first threshold, an offset of the second threshold, or any combination thereof.
[0115] In some embodiments, the second configuration information may comprise: a value of the third threshold, a value of the fourth threshold, an offset of the third threshold, an offset of the fourth threshold, or any combination thereof.
[0116] In some embodiments, the terminal device 120 may determine the first evaluation result by: determining the radio link quality within a first type evaluation period to be better based on determining that the radio link quality is larger than or equal to the first threshold or the third threshold; or determining the radio link quality within a second type evaluation period to be worse based on determining that the radio link quality is smaller than or equal to the second threshold or the fourth threshold.
[0117] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the first set of symbols and does not comprise the second set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0118] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the first set of symbols and does not comprise the second set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0119] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the second set of symbols and does not comprise the first set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0120] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the second set of symbols and does not comprise the first set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0121] In some embodiments, the terminal device 120 may receive, from a network device, a first indication of a symbol type to be evaluated; and determine the first evaluation result based on evaluating the radio link quality on one of the first set of symbols or the second set of symbols with the symbol type to be evaluated.
[0122] In some embodiments, the first indication indicates the first symbol type, and the evaluation period is a first type evaluation period, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0123] In some embodiments, the first indication indicates the first symbol type, and the evaluation period is a second type evaluation period, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0124] In some embodiments, the first indication indicates the second symbol type, and the evaluation period is a first type evaluation period, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0125] In some embodiments, the first indication indicates the second symbol type, and the evaluation period is a second type evaluation period, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0126] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the first threshold or the third threshold.
[0127] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the second threshold or the fourth threshold.
[0128] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols, and the terminal device 120 may determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to one of the first configuration information or the second configuration information associated with a symbol type having a higher number of occurrences during the evaluation period.
[0129] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols, and the terminal device 120 may determine the first evaluation result by: determining a second evaluation result based on evaluating the radio link quality on the first set of symbols according to the first configuration information; determining a third evaluation result based on evaluating the radio link quality on the second set of symbols according to the second configuration information; and determining the first evaluation result based on the second evaluation result and the third evaluation result.
[0130] In some embodiments, the terminal device 120 may determine the first evaluation result based on supporting a capability of measurement on the first symbol type and the second symbol type separately.
[0131] In some embodiments, the terminal device 120 may transmit, to a network device, a second indication of the capability of measurement on the first symbol type and the second symbol type separately.
[0132] In some embodiments, the terminal device 120 may determine the first configuration information and the second configuration information by: receiving, from a network device, the first configuration information and the second configuration information.
[0133] In some embodiments, the terminal device 120 may receive, from a network device, third configuration information of the evaluation period.
[0134] Fig. 8 shows a flowchart of an example method implemented at a network device in accordance with some embodiments. For the purpose of discussion, an example method 800 will be described from the perspective of the network device 110 with reference to Fig. 1.
[0135] At block 810, the network device 110 may transmit, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[0136] In some embodiments, the radio link quality may comprise at least one of the following: SNR, SINR, or PSRP. In some embodiments, the radio link quality may comprise SNR, SINR, PSRP, or any combination thereof.
[0137] In some embodiments, the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection. In some embodiments, the first symbol type is a SBFD symbol type, and the second symbol type is a non-SBFD symbol type.
[0138] In some embodiments, the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type. In some embodiments, the second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.
[0139] In some embodiments, the first threshold is a level at which a radio link is able to be reliable received. In some embodiments, the second threshold is a level at which a radio link is not able to be reliable received. In some embodiments, the third threshold is a level at which a radio link is able to be reliable received. In some embodiments, the fourth threshold is a level at which a radio link is not able to be reliable received.
[0140] In some embodiments, the first threshold corresponds to a first in-sync block error rate (BLER_in) . In some embodiments, the second threshold corresponds to a first out-of-sync block error rate (BLER_out) . In some embodiments, the third threshold corresponds to a second BLER_in. In some embodiments, the fourth threshold corresponds to a second BLER_out.
[0141] In some embodiments, the first BLER_in is same as or different from the second BLER_in. In some embodiments, the first BLER_out is same as or different from the second BLER_out.
[0142] In some embodiments, the first configuration information comprises the first BLER_in and the first BLER_out. In some embodiments, the second configuration information comprises the second BLER_in and the second BLER_out.
[0143] In some embodiments, the first configuration information may comprise: a value of the first threshold, a value of the second threshold, an offset of the first threshold, an offset of the second threshold, or any combination thereof.
[0144] In some embodiments, the second configuration information may comprise: a value of the third threshold, a value of the fourth threshold, an offset of the third threshold, an offset of the fourth threshold, or any combination thereof.
[0145] In some embodiments, the network device 110 may transmit, to the terminal device, third configuration information of an evaluation period. In some embodiments, the network device 110 may transmit, to the terminal device, a first indication of a symbol type to be evaluated.
[0146] In some embodiments, the network device 110 may receive, from the terminal device, a second indication of a capability of measurement on the first symbol type and the second symbol type separately.
[0147] In some embodiments, an apparatus capable of performing any of the method 200 (for example, the terminal device 120) may comprise means for performing the respective steps of the method 200. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0148] In some embodiments, the apparatus comprises: means for determining first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; and means for determining, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.
[0149] In some embodiments, the radio link quality may comprise SNR, SINR, PSRP, or any combination thereof. In some embodiments, the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection. In some embodiments, the first symbol type is a SBFD symbol type, and the second symbol type is a non-SBFD symbol type.
[0150] In some embodiments, the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type. In some embodiments, the second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.
[0151] In some embodiments, the first threshold is a level at which a radio link is able to be reliable received. In some embodiments, the second threshold is a level at which a radio link is not able to be reliable received. In some embodiments, the third threshold is a level at which a radio link is able to be reliable received. In some embodiments, the fourth threshold is a level at which a radio link is not able to be reliable received.
[0152] In some embodiments, the first threshold corresponds to a first in-sync block error rate (BLER_in) . In some embodiments, the second threshold corresponds to a first out-of-sync block error rate (BLER_out) . In some embodiments, the third threshold corresponds to a second BLER_in. In some embodiments, the fourth threshold corresponds to a second BLER_out.
[0153] In some embodiments, the first BLER_in is same as or different from the second BLER_in. In some embodiments, the first BLER_out is same as or different from the second BLER_out.
[0154] In some embodiments, the first configuration information comprises the first BLER_in and the first BLER_out. In some embodiments, the second configuration information comprises the second BLER_in and the second BLER_out.
[0155] In some embodiments, the first configuration information may comprise: a value of the first threshold, a value of the second threshold, an offset of the first threshold, an offset of the second threshold, or any combination thereof.
[0156] In some embodiments, the second configuration information may comprise: a value of the third threshold, a value of the fourth threshold, an offset of the third threshold, an offset of the fourth threshold, or any combination thereof.
[0157] In some embodiments, the apparatus further comprises: means for determining the radio link quality within a first type evaluation period to be better based on determining that the radio link quality is larger than or equal to the first threshold or the third threshold; or means for determining the radio link quality within a second type evaluation period to be worse based on determining that the radio link quality is smaller than or equal to the second threshold or the fourth threshold.
[0158] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the first set of symbols and does not comprise the second set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0159] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the first set of symbols and does not comprise the second set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0160] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the second set of symbols and does not comprise the first set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0161] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the second set of symbols and does not comprise the first set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0162] In some embodiments, the apparatus further comprises: means for receiving, from a network device, a first indication of a symbol type to be evaluated; and means for determining the first evaluation result based on evaluating the radio link quality on one of the first set of symbols or the second set of symbols with the symbol type to be evaluated.
[0163] In some embodiments, the first indication indicates the first symbol type, and the evaluation period is a first type evaluation period, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.
[0164] In some embodiments, the first indication indicates the first symbol type, and the evaluation period is a second type evaluation period, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.
[0165] In some embodiments, the first indication indicates the second symbol type, and the evaluation period is a first type evaluation period, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.
[0166] In some embodiments, the first indication indicates the second symbol type, and the evaluation period is a second type evaluation period, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.
[0167] In some embodiments, the evaluation period is a first type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the first threshold or the third threshold.
[0168] In some embodiments, the evaluation period is a second type evaluation period, and the evaluation period may comprise the first set of symbols and the second set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the second threshold or the fourth threshold.
[0169] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols, and the apparatus further comprises: means for determining the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to one of the first configuration information or the second configuration information associated with a symbol type having a higher number of occurrences during the evaluation period.
[0170] In some embodiments, the evaluation period may comprise the first set of symbols and the second set of symbols, and the apparatus further comprises: means for determining a second evaluation result based on evaluating the radio link quality on the first set of symbols according to the first configuration information; means for determining a third evaluation result based on evaluating the radio link quality on the second set of symbols according to the second configuration information; and means for determining the first evaluation result based on the second evaluation result and the third evaluation result.
[0171] In some embodiments, the apparatus further comprises: means for determining the first evaluation result based on supporting a capability of measurement on the first symbol type and the second symbol type separately.
[0172] In some embodiments, the apparatus further comprises: means for transmitting, to a network device, a second indication of the capability of measurement on the first symbol type and the second symbol type separately.
[0173] In some embodiments, the apparatus further comprises: means for receiving, from a network device, the first configuration information and the second configuration information.
[0174] In some embodiments, the terminal device 120 may receive, from a network device, third configuration information of the evaluation period.
[0175] In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 200. 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.
[0176] In some embodiments, an apparatus capable of performing any of the method 200 (for example, the network device 110) may comprise means for performing the respective steps of the method 200. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0177] In some embodiments, the apparatus comprises: means for transmitting, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.
[0178] In some embodiments, the radio link quality may comprise SNR, SINR, PSRP, or any combination thereof. In some embodiments, the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection. In some embodiments, the first symbol type is a SBFD symbol type, and the second symbol type is a non-SBFD symbol type.
[0179] In some embodiments, the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type. In some embodiments, the second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.
[0180] In some embodiments, the first threshold is a level at which a radio link is able to be reliable received. In some embodiments, the second threshold is a level at which a radio link is not able to be reliable received. In some embodiments, the third threshold is a level at which a radio link is able to be reliable received. In some embodiments, the fourth threshold is a level at which a radio link is not able to be reliable received.
[0181] In some embodiments, the first threshold corresponds to a first in-sync block error rate (BLER_in) . In some embodiments, the second threshold corresponds to a first out-of-sync block error rate (BLER_out) . In some embodiments, the third threshold corresponds to a second BLER_in. In some embodiments, the fourth threshold corresponds to a second BLER_out.
[0182] In some embodiments, the first BLER_in is same as or different from the second BLER_in. In some embodiments, the first BLER_out is same as or different from the second BLER_out.
[0183] In some embodiments, the first configuration information comprises the first BLER_in and the first BLER_out. In some embodiments, the second configuration information comprises the second BLER_in and the second BLER_out.
[0184] In some embodiments, the first configuration information may comprise: a value of the first threshold, a value of the second threshold, an offset of the first threshold, an offset of the second threshold, or any combination thereof.
[0185] In some embodiments, the second configuration information may comprise: a value of the third threshold, a value of the fourth threshold, an offset of the third threshold, an offset of the fourth threshold, or any combination thereof.
[0186] In some embodiments, the apparatus further comprises: means for transmitting, to the terminal device, third configuration information of an evaluation period. In some embodiments, the apparatus further comprises: means for transmitting, to the terminal device, a first indication of a symbol type to be evaluated.
[0187] In some embodiments, the apparatus further comprises: means for receiving, from the terminal device, a second indication of a capability of measurement on the first symbol type and the second symbol type separately.
[0188] In some embodiments, the apparatus further comprises means for performing other steps in some embodiments of the method 200. 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.
[0189] Fig. 9 is a simplified block diagram of an example apparatus 900 that is suitable for implementing embodiments. The apparatus 900 may be provided to implement the communication device, for example the terminal device 120, the network device 110 as shown in Fig. 1. As shown, the apparatus 900 includes one or more processors 910, one or more memories 920 coupled to the processor 910, and one or more communication modules 940 coupled to the processor 910.
[0190] The communication module 940 is for bidirectional communications. The communication module 940 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0191] The processor 910 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 apparatus 900 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.
[0192] The memory 920 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) 924, 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) 922 and other volatile memories that will not persist after a power-down duration.
[0193] A computer program 930 includes computer executable instructions that are executed by the associated processor 910. The program 930 may be stored in the ROM 924. The processor 910 may perform any suitable actions and processing by loading the program 930 into the RAM 922.
[0194] The communication module 940 is for bidirectional communications. The communication module 940 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0195] The various embodiments of this disclosure may be implemented by means of the program 930 so that the apparatus 900 may perform any process of the disclosure as discussed with reference to Figs. 2 to 8. The various embodiments of this disclosure may also be implemented by hardware or by a combination of software and hardware.
[0196] In some embodiments, the program 930 may be tangibly contained in a computer readable medium which may be included in the apparatus 900 (such as in the memory 920) or other storage devices that are accessible by the apparatus 900. The apparatus 900 may load the program 930 from the computer readable medium to the RAM 922 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.
[0197] Fig. 10 illustrates a block diagram of an example computer readable medium in accordance with some embodiments. For example, Fig. 10 may show an example of a computer readable medium 1000 in form of CD or DVD. The computer readable medium may comprise the program 930 stored thereon.
[0198] 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.
[0199] 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. 2-8. 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.
[0200] 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.
[0201] 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.
[0202] 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) .
[0203] 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.
[0204] 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 first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; anddetermine, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.2.The terminal device of claim 1, wherein the radio link quality comprises at least one of the following:signal to noise ratio (SNR) ,signal to interference plus noise ratio (SINR) ,reference signal received power (RSRP) , orreference signal received quality (RSRQ) .3.The terminal device of claim 1 or 2, wherein the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection.4.The terminal device of any of claims 1-3, wherein the first symbol type is a sub-band full duplex (SBFD) symbol type, and the second symbol type is a non-SBFD symbol type.5.The terminal device of any of claims 1-4, wherein at least one of the following:the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type; orthe second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.6.The terminal device of claim 5, wherein at least one of the following:the first threshold is a level at which a radio link is able to be reliable received;the second threshold is a level at which a radio link is not able to be reliable received;the third threshold is a level at which a radio link is able to be reliable received; orthe fourth threshold is a level at which a radio link is not able to be reliable received.7.The terminal device of claim 5 or 6, wherein at least one of the following:the first threshold corresponds to a first in-sync block error rate (BLER_in) ;the second threshold corresponds to a first out-of-sync block error rate (BLER_out) ;the third threshold corresponds to a second BLER_in; orthe fourth threshold corresponds to a second BLER_out.8.The terminal device of claim 7, wherein at least one of the following:the first BLER_in is same as or different from the second BLER_in; orthe first BLER_out is same as or different from the second BLER_out.9.The terminal device of claim 7 or 8, wherein at least one of the following:the first configuration information comprises the first BLER_in and the first BLER_out; orthe second configuration information comprises the second BLER_in and the second BLER_out.10.The terminal device of any of claims 5-9, wherein the first configuration information comprises at least one of the following:a value of the first threshold,a value of the second threshold,an offset of the first threshold, oran offset of the second threshold.11.The terminal device of any of claims 5-10, wherein the second configuration information comprises at least one of the following:a value of the third threshold,a value of the fourth threshold,an offset of the third threshold, oran offset of the fourth threshold.12.The terminal device of any of claims 5-11, wherein the terminal device is caused to determine the first evaluation result by:determining the radio link quality within a first type evaluation period to be better based on determining that the radio link quality is larger than or equal to the first threshold or the third threshold; ordetermining the radio link quality within a second type evaluation period to be worse based on determining that the radio link quality is smaller than or equal to the second threshold or the fourth threshold.13.The terminal device of any of claims 1-12, wherein the evaluation period is a first type evaluation period, and the evaluation period comprises the first set of symbols and does not comprise the second set of symbols, and wherein the terminal device is caused to: determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.14.The terminal device of any of claims 1-12, wherein the evaluation period is a second type evaluation period, and the evaluation period comprises the first set of symbols and does not comprise the second set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.15.The terminal device of any of claims 1-12, wherein the evaluation period is a first type evaluation period, and the evaluation period comprises the second set of symbols and does not comprise the first set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.16.The terminal device of any of claims 1-12, wherein the evaluation period is a second type evaluation period, and the evaluation period comprises the second set of symbols and does not comprise the first set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.17.The terminal device of any of claims 1-12, wherein the terminal device is further caused to:receive, from a network device, a first indication of a symbol type to be evaluated; anddetermine the first evaluation result based on evaluating the radio link quality on one of the first set of symbols or the second set of symbols with the symbol type to be evaluated.18.The terminal device of claim 17, wherein the first indication indicates the first symbol type, and the evaluation period is a first type evaluation period, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the first threshold.19.The terminal device of claim 17, wherein the first indication indicates the first symbol type, and the evaluation period is a second type evaluation period, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols according to the second threshold.20.The terminal device of claim 17, wherein the first indication indicates the second symbol type, and the evaluation period is a first type evaluation period, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the third threshold.21.The terminal device of claim 17, wherein the first indication indicates the second symbol type, and the evaluation period is a second type evaluation period, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the second set of symbols according to the fourth threshold.22.The terminal device of any of claims 1-12, wherein the evaluation period is a first type evaluation period, and the evaluation period comprises the first set of symbols and the second set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the first threshold or the third threshold.23.The terminal device of any of claims 1-12, wherein the evaluation period is a second type evaluation period, and the evaluation period comprises the first set of symbols and the second set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to the second threshold or the fourth threshold.24.The terminal device of any of claims 1-12, wherein the evaluation period comprises the first set of symbols and the second set of symbols, and wherein the terminal device is caused to:determine the first evaluation result based on evaluating the radio link quality on the first set of symbols and the second set of symbols according to one of the first configuration information or the second configuration information associated with a symbol type having a higher number of occurrences during the evaluation period.25.The terminal device of any of claims 1-12, wherein the evaluation period comprises the first set of symbols and the second set of symbols, and wherein the terminal device is caused to determine the first evaluation result by:determining a second evaluation result based on evaluating the radio link quality on the first set of symbols according to the first configuration information;determining a third evaluation result based on evaluating the radio link quality on the second set of symbols according to the second configuration information; anddetermining the first evaluation result based on the second evaluation result and the third evaluation result.26.The terminal device of claim 25, wherein the terminal device is caused to determine the first evaluation result based on supporting a capability of measurement on the first symbol type and the second symbol type separately.27.The terminal device of claim 26, wherein the terminal device is further caused to:transmit, to a network device, a second indication of the capability of measurement on the first symbol type and the second symbol type separately.28.The terminal device of any of claims 1-27, wherein the terminal device is caused to determine the first configuration information and the second configuration information by:receiving, from a network device, the first configuration information and the second configuration information.29.The terminal device of any of claims 1-28, wherein the terminal device is further caused to:receive, from a network device, third configuration information of the evaluation period.30.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, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.31.The network device of claim 30, wherein the radio link quality comprises at least one of the following:signal to noise ratio (SNR) ,signal to interference plus noise ratio (SINR) ,reference signal received power (RSRP) , orreference signal received quality (RSRQ) .32.The network device of claim 30 or 31, wherein the first evaluation result is used for radio link monitoring, beam failure detection, or candidate beam detection.33.The network device of any of claims 30-32, wherein the first symbol type is a sub-band full duplex (SBFD) symbol type, and the second symbol type is a non-SBFD symbol type.34.The network device of any of claims 30-33, wherein at least one of the following:the first configuration information comprises at least one of a first threshold for the first symbol type and a second threshold for the first symbol type; orthe second configuration information comprises at least one of a third threshold for the second symbol type and a fourth threshold for the second symbol type.35.The network device of claim 34, wherein at least one of the following:the first threshold is a level at which a radio link is able to be reliable received;the second threshold is a level at which a radio link is not able to be reliable received;the third threshold is a level at which a radio link is able to be reliable received; orthe fourth threshold is a level at which a radio link is not able to be reliable received.36.The network device of claim 34 or 35, wherein at least one of the following:the first threshold corresponds to a first in-sync block error rate (BLER_in) ;the second threshold corresponds to a first out-of-sync block error rate (BLER_out) ;the third threshold corresponds to a second BLER_in; orthe fourth threshold corresponds to a second BLER_out.37.The network device of claim 36, wherein at least one of the following:the first BLER_in is same as or different from the second BLER_in; orthe first BLER_out is same as or different from the second BLER_out.38.The network device of claim 36 or 37, wherein at least one of the following:the first configuration information comprises the first BLER_in and the first BLER_out; orthe second configuration information comprises the second BLER_in and the second BLER_out.39.The network device of any of claims 34-38, wherein the first configuration information comprises at least one of the following:a value of the first threshold,a value of the second threshold,an offset of the first threshold, oran offset of the second threshold.40.The network device of any of claims 34-39, wherein the second configuration information comprises at least one of the following:a value of the third threshold,a value of the fourth threshold,an offset of the third threshold, oran offset of the fourth threshold.41.The network device of any of claims 30-40, wherein the network device is further caused to:transmit, to the terminal device, third configuration information of an evaluation period.42.The network device of any of claims 30-41, wherein the network device is further caused to:transmit, to the terminal device, a first indication of a symbol type to be evaluated.43.The network device of any of claims 30-42, wherein the network device is further caused to:receive, from the terminal device, a second indication of a capability of measurement on the first symbol type and the second symbol type separately.44.A method comprising:determining first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; anddetermining, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.45.A method comprising:transmitting, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.46.An apparatus comprising:means for determining first configuration information associated with a first symbol type and second configuration information associated with a second symbol type; andmeans for determining, based on evaluating radio link quality within an evaluation period according to at least one of the first configuration information or the second configuration information, a first evaluation result of the radio link quality, wherein the evaluation period comprises at least one of a first set of symbols with the first symbol type or a second set of symbols with the second symbol type.47.An apparatus comprising:means for transmitting, to a terminal device, first configuration information associated with a first symbol type or second configuration information associated with a second symbol type, wherein the first configuration information or the second configuration information are used for determining a first evaluation result based on evaluating radio link quality.48.A computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the method of claim 44 or 41.