Measurement method and apparatus, device, and storage medium
By performing relaxed RRM measurements or not performing RRM measurements on terminal devices under the condition of meeting channel quality and/or location-related judgment criteria, the problem of high power consumption of terminal devices is solved, and power consumption is reduced without affecting mobility and data transmission performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
- Filing Date
- 2024-10-28
- Publication Date
- 2026-05-07
AI Technical Summary
In the existing technology, the power consumption of terminal devices is relatively high when performing RRM measurement, and further research is needed on how to design the judgment criteria for RRM measurement in order to reduce the power consumption of terminal devices.
A measurement method is provided that reduces the RRM measurement frequency by performing relaxed RRM measurements or not performing RRM measurements in a terminal device under the condition that the channel quality and/or location-related judgment criteria are met.
The frequency of RRM measurements is reduced without affecting the mobility and data transmission performance of the terminal device, thereby reducing the power consumption of the terminal device.
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Figure CN2024127649_07052026_PF_FP_ABST
Abstract
Description
Measurement methods, apparatus, equipment and storage media Technical Field
[0001] This application relates to the field of communication technology, and in particular to a measurement method, apparatus, device, and storage medium. Background Technology
[0002] Terminal devices can perform RRM (Radio Resource Management) measurements on the serving cell and neighboring cells, and report the measurement results to network devices so that network devices can optimize the allocation of radio resources and cell handover for terminal devices.
[0003] To reduce power consumption caused by continuous RRM measurements by terminal devices, network equipment is configured with a series of judgment criteria to help terminal devices determine when to perform RRM measurements. However, how to design the judgment criteria for RRM measurements requires further discussion and research.
[0004] Summary of the Invention
[0005] This application provides a measurement method, apparatus, device, and storage medium. The technical solutions provided by this application are as follows.
[0006] According to one aspect of the embodiments of this application, a measurement method is provided, the method being executed by a terminal device, the method comprising:
[0007] If the first criterion and / or the second criterion are met, for at least one of the multiple serving carriers of the terminal device, a relaxed RRM measurement or no RRM measurement is performed; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0008] According to one aspect of the embodiments of this application, a measurement method is provided, the method being executed by a terminal device, the method comprising:
[0009] For at least one of the multiple serving carriers of the terminal device, first information is sent to the network device, the first information being used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
[0010] According to one aspect of the embodiments of this application, a measuring device is provided, the device comprising:
[0011] The processing module is configured to perform relaxed RRM measurement or not perform RRM measurement for at least one of a plurality of serving carriers of the terminal device, provided that a first criterion and / or a second criterion are met; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0012] According to one aspect of the embodiments of this application, a measuring device is provided, the device comprising:
[0013] The transmitting module is configured to transmit first information to the network device for at least one of a plurality of serving carriers of the terminal device, wherein the first information is used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
[0014] According to one aspect of the embodiments of this application, a terminal device is provided, the terminal device including a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement the above-described measurement method.
[0015] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, the storage medium storing a computer program for execution by a processor to implement the above-described measurement method.
[0016] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is running, are used to implement the above-described measurement method.
[0017] According to one aspect of the embodiments of this application, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium, and a processor reading from the computer-readable storage medium and executing the computer instructions to implement the above-described measurement method.
[0018] The technical solutions provided in this application embodiment may have the following beneficial effects:
[0019] If the terminal device meets the first criterion and / or the second criterion, by performing relaxed RRM measurement or not performing RRM measurement for at least one serving carrier of the terminal device, the frequency of RRM measurement on the serving carrier is reduced without affecting the mobility and data transmission performance of the terminal device, thereby reducing the power consumption caused by the terminal device performing RRM measurement on the serving carrier. Attached Figure Description
[0020] Figure 1 is a schematic diagram of a network architecture provided in one embodiment of this application;
[0021] Figure 2 is a schematic diagram of the working principle of LP-WUS provided in an embodiment of this application;
[0022] Figure 3 is a schematic diagram of discontinuous carrier aggregation and continuous carrier aggregation provided in an embodiment of this application;
[0023] Figure 4 is a schematic diagram of dual-connection carrier aggregation provided in an embodiment of this application;
[0024] Figure 5 is a flowchart of a measurement method provided in an embodiment of this application;
[0025] Figure 6 is a schematic diagram of a TN scenario and an NTN scenario provided in an embodiment of this application;
[0026] Figure 7 is a flowchart of a measurement method provided in another embodiment of this application;
[0027] Figure 8 is a block diagram of a measuring device provided in an embodiment of this application;
[0028] Figure 9 is a block diagram of a measuring device provided in another embodiment of this application;
[0029] Figure 10 is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0031] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
[0032] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) systems, B5G (Beyound 5G) systems, 6th-Generation (6G) systems, or other communication systems.
[0033] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.
[0034] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.
[0035] The communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.
[0036] The embodiments of this application can be applied to both non-terrestrial networks (NTN) and terrestrial networks (TN). NTN typically uses satellite communication to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN systems, and other NTN systems may be included in the future.
[0037] Please refer to Figure 1, which shows a schematic diagram of a network architecture 100 provided in one embodiment of this application. The network architecture 100 may include: a terminal device 10, an access network device 20, and a core network element 30.
[0038] Terminal device 10 can refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent, or user equipment. In some embodiments, terminal device 10 can also be a cellular phone, cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in 5GS (5th Generation System), or terminal device in the future evolved PLMN (Public Land Mobile Network), etc., and this application embodiment is not limited thereto. For ease of description, the devices mentioned above are collectively referred to as terminal devices. The number of terminal devices 10 is usually multiple, and one or more terminal devices 10 can be distributed within the cell managed by each access network device 20. Terminal equipment can also be simply referred to as terminal or UE, the meaning of which can be understood by those skilled in the art.
[0039] Access network device 20 is a device deployed in an access network to provide wireless communication functionality to terminal device 10. Access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the name of the device with access network device functionality may differ; for example, in a 5G NR system, it is called gNodeB or gNB. As communication technologies evolve, the name "access network device" may change. For ease of description, in this embodiment, the aforementioned devices providing wireless communication functionality to terminal device 10 are collectively referred to as access network devices. In some embodiments, a communication relationship can be established between terminal device 10 and core network element 30 through access network device 20. For example, in an LTE (Long Term Evolution) system, access network device 20 may be one or more eNodeBs in an EUTRAN (Evolved Universal Terrestrial Radio Access Network) or EUTRAN; in a 5G NR system, access network device 20 may be one or more gNBs in a RAN (Radio Access Network). In the embodiments of this application, unless otherwise specified, the term "network device" refers to access network device 20, such as a base station.
[0040] Core network element 30 is a network element deployed in the core network. Its main functions are to provide user connectivity, manage users, and bear services, serving as an interface to external networks. For example, core network elements in a 5G NR system may include AMF (Access and Mobility Management Function) entities, UPF (User Plane Function) entities, and SMF (Session Management Function) entities.
[0041] In some embodiments, the access network device 20 and the core network element 30 communicate with each other via some air interface technology, such as the NG interface in a 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via some air interface technology, such as the Uu interface.
[0042] The "5G NR system" in this application embodiment can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this application embodiment can be applied to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (such as B5G (Beyond 5G, a fifth-generation mobile communication technology) systems, 6G systems (6th Generation System, a sixth-generation mobile communication system)), and other communication systems such as NB-IoT (Narrow Band Internet of Things) systems. This application does not limit these applications.
[0043] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.
[0044] Before introducing the technical solution of this application, some related technical knowledge involved in this application will be introduced and explained. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.
[0045] Currently, with people's pursuit of speed, latency, high-speed mobility, and energy efficiency, as well as the diversity and complexity of services in future life, the 3GPP (3rd Generation Partnership Project) international standards organization has begun to develop 5G. The main application scenarios of 5G are: Enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC), and Massive Machine Type Communication (mMTC).
[0046] eMBB still aims to provide users with multimedia content, services, and data, and its demand is growing rapidly. On the other hand, because eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, its capabilities and needs vary considerably. Therefore, generalizations cannot be made; a detailed analysis based on the specific deployment scenario is necessary. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), and traffic safety assurance. Typical characteristics of mMTC include high connection density, small data volume, latency-insensitive services, low module cost, and long lifespan.
[0047] NR can also be deployed independently. In 5G network environments, to reduce air interface signaling and quickly restore radio connections, thereby achieving the goal of rapidly restoring data services, a new RRC (Radio Resource Control) state is defined, namely the RRC_INACTIVE state. This state is different from the RRC_IDLE and RRC_CONNECTED states.
[0048] RRC_IDLE: RRC idle state. Mobility is based on UE-based cell selection and reselection. Paging is initiated by the CN (Core Network), and the paging area is configured by the CN. There is no UE AS (Access Stratum) context on the base station side. There is no RRC connection.
[0049] RRC_CONNECTED: RRC connected state. An RRC connection exists, and the base station and UE share a UE AS context. The network side knows the UE's location at the cell level. Mobility is controlled by the network side. Unicast data can be transmitted between the UE and the base station.
[0050] RRC_INACTIVE: RRC inactive state. Mobility is based on UE cell selection and reselection, there is a connection between CN and NR, the UE AS context exists on a certain base station, paging is triggered by RAN (Radio Access Network), the RAN-based paging area is managed by RAN, and the network side knows the UE's location at the RAN-based paging area level.
[0051] I. RRM Measurement of R15 NR UE
[0052] Terminal devices in both RRC connected and disconnected states need to perform RRM measurements on the serving cell and other neighboring cells based on network configuration to support mobility operations, such as handover in RRC connected state, cell reselection in RRC idle state or RRC inactive state, etc.
[0053] The UE's measurements of the serving cell are ongoing.
[0054] In NR Rel-15, for energy-saving considerations of terminal equipment, for UEs with RRC_IDLE or RRC_INACTIVE, when the UE has a good quality channel in the serving cell, the UE may not initiate RRM measurements for neighboring cells with the same frequency or with the same or lower priority but different frequency / technology frequencies. For high-priority different frequency / technology frequencies, relaxed RRM measurements can be performed. Specifically:
[0055] For co-frequency points, if the Srxlev (Serving cell Received Signal Level) measured by the serving cell is higher than SIntraSearchP and the Squal (Transmission Quality) is higher than SIntraSearchQ, then the UE can disable the measurement of all co-frequency neighboring cells.
[0056] For low-priority or equal-priority NR inter-frequency or inter-technology frequency points, if the Srxlev measured by the serving cell is higher than SnonIntraSearchP and Squal is higher than SnonIntraSearchQ, the UE can disable the measurement of all low-priority or equal-priority NR inter-frequency or inter-technology frequency points.
[0057] For high-priority NR inter-frequency or inter-technology frequencies, if the Srxlev measured by the serving cell is higher than SnonIntraSearchP and Squal is higher than SnonIntraSearchQ, the UE can perform relaxed measurements for the high-priority NR inter-frequency or inter-technology frequencies. In this case, for each high-priority frequency, the measurement interval is relaxed to Thigher_priority_search = (60*N). layers )s, where N layers This represents the number of high-priority frequencies for network broadcasting.
[0058] The parameters SIntraSearchP, SintraSearchQ, SnonIntraSearchP, and SnonIntraSearchQ are configured by the network through SIB2 (System Information Block).
[0059] For UEs in RRC connected state, the base station can configure s-measure criteria for the UE through UE-specific RRC signaling. When the UE meets the s-measure criteria (i.e., the RSRP (Reference Signal Received Power) of the UE on the PCell (Primary Cell) is higher than a certain threshold), the UE can avoid performing RRM measurements for neighboring cells, thereby achieving the purpose of energy saving for terminal equipment.
[0060] II. Relaxation of RRM Measurement for R16 Off-Connectivity UEs
[0061] Release 16 introduces a neighboring cell measurement relaxation mechanism for non-connected UEs to further meet the power saving needs of terminal devices.
[0062] To support relaxed neighbor cell measurements, the low mobility criterion and the not-at-cell-edge criterion are introduced. Both criteria are based on measurements of the UE on the serving cell. The definitions of the low mobility criterion and the not-at-cell-edge criterion in the standard are as follows:
[0063] 1. The "low mobility" principle
[0064] For this criterion, network devices will configure the RSRP change evaluation period TSearchDeltaP and the RSRP change value threshold SSearchDeltaP. When the RSRP change of the UE on the serving cell is less than SSearchDeltaP within a period of TSearchDeltaP, the UE is considered to meet the "low mobility" criterion. That is: within a period of TSearchDeltaP, the following condition must be met: (SrxlevRef – Srxlev) < SSearchDeltaP (1)
[0065] Wherein, Srxlev is the current Srxlev measurement value of the serving cell, and SrxlevRef is the reference Srxlev value of the serving cell.
[0066] When the UE selects or reselects to a new cell, or
[0067] If (Srxlev - SrxlevRef) > 0, or
[0068] If the UE does not satisfy formula (1) within the duration of TSearchDeltaP:
[0069] The UE sets SrxlevRef to the current Srxlev measurement value of the serving cell;
[0070] After completing cell selection / reselection, the UE needs to perform normal RRM measurements within at least a certain period of TSearchDeltaP.
[0071] 2. The "not-at-cell-edge" rule
[0072] In accordance with this guideline, network devices will be configured with an RSRP threshold S. SearchThresholdP Additionally, an RSRQ (Reference Signal Received Quality) threshold S can be configured. SearchThresholdQ If the RSRP of the UE on the serving cell is greater than the RSRP threshold, and the RSRQ of the UE on the serving cell is greater than the RSRQ threshold when the network is configured with an RSRQ threshold, then the UE is considered to meet the "not-at-cell-edge" criterion.
[0073] The network device notifies the UE via system broadcast whether the RRM measurement relaxation function can be enabled. When enabling the RRM measurement relaxation function, the network device needs to configure at least one RRM measurement relaxation criterion. Depending on the configuration, there may be four scenarios.
[0074] Case 1: If the network device is only configured with the low mobility criterion, then when the UE meets the low mobility criterion, the UE will initiate relaxed RRM measurement for neighboring cells.
[0075] Case 2: If the network device is only configured with the not-at-cell-edge criterion, then when the UE meets the not-at-cell-edge criterion, the UE performs relaxed RRM measurement for neighboring cells.
[0076] Case 3: The network device is configured with both the low mobility criterion and the not-at-cell-edge criterion, and the network device is not configured with the parameter combineRelaxedMeasCondition. In this case, when the UE meets at least one of these two criteria, the UE initiates relaxed RRM measurement for the neighboring cell.
[0077] Case 4: The network device is configured with both the low mobility criterion and the not-at-cell-edge criterion, and the network is configured with the parameter combineRelaxedMeasCondition. In this case, when the UE meets both criteria, the UE initiates relaxed RRM measurement for neighboring cells.
[0078] TS38.133 defines the following two RRM measurement relaxation methods for non-connected UEs:
[0079] Method 1: When the UE only meets the low mobility criterion or the not-at-cell-edge criterion, for same-frequency measurement, NR inter-frequency measurement and inter-technology inter-frequency measurement, the measurement interval is relaxed to 3 times the normal measurement interval.
[0080] Method 2: When the UE simultaneously meets the low mobility criterion and the not-at-cell-edge criterion, the measurement interval can be relaxed to 1 hour for intra-frequency measurement, NR inter-frequency measurement, and inter-technology inter-frequency measurement.
[0081] Furthermore, for high-priority frequencies, `highPriorityMeasRelax` is introduced. This parameter indicates whether the network device allows the UE to relax the measurement interval for high-priority frequencies to a value exceeding `Thigher_priority_search` (except when the UE simultaneously meets the low mobility criterion and the not-at-cell-edge criterion). In other words, `highPriorityMeasRelax` is only used to control the network device when it is configured with the low mobility criterion, the UE meets the low mobility criterion, and the UE's measurement results in the serving cell satisfy `Srxlev` greater than `SnonIntraSearchP` and `Squal` greater than `SnonIntraSearchQ`. In this case, if the network device is configured with `highPriorityMeasRelax`, the UE's measurement interval for high-priority frequencies can be relaxed to `K2*Thigher_priority_search`, where `K2` is 60; otherwise (if the network device is not configured with `highPriorityMeasRelax`), the UE's measurement interval for high-priority frequencies is `Thigher_priority_search`.
[0082] III. Relaxation of RRM Measurement for R17 RedCap UE
[0083] R17 primarily focuses on relaxing the RRM measurement for RedCap (Reduced Capability) stationary terminal equipment, and introduces the stationary criterion for this purpose. The stationary criterion is exactly the same as the method for judging low mobility in R16.
[0084] For connected UEs, the network device configures the R17 stationary criterion via broadcast messages. When the network device configures both the R16 low mobility criterion and the R17 stationary criterion, the network configures different thresholds for these two criteria. Furthermore, if the network device needs to configure RRM relaxation criteria for connected UEs under R17, the R17 stationary criterion is mandatory, while the R16 not celledge criterion is optional.
[0085] For connected UEs, network devices configure RRM measurement relaxation criteria (i.e., stationary criteria) via UE-specific RRC signaling. When a UE first meets the RRM measurement relaxation criteria based on an assessment, or when the UE's status regarding whether it meets the RRM measurement relaxation criteria changes, the UE informs the network whether it meets the RRM measurement relaxation criteria through UE auxiliary information reporting. How to relax RRM measurements subsequently depends entirely on the base station implementation (e.g., the base station can delete some measurement frequencies for the UE), and there are no specifications in the standard.
[0086] IV. R18 / R19 LP-WUR (Low-Power Wake-Up Receiver) / LP-WUS (Low-Power Wake-Up Signal) Projects
[0087] 3GPP introduced LP-WUS in Release 18 / Release 19. LP-WUS uses a lower-power receiver for reception, meaning it does not use a master receiver. As shown in sub-figures (a) and (b) of Figure 2, after a disconnected UE receives LP-WUS, it activates the master receiver to listen for paging messages, thus saving power. After a connected UE receives LP-WUS, it wakes up the master receiver to listen for PDCCH (Physical Downlink Control Channel).
[0088] Currently, the primary tasks of a UE in RRC_IDLE or RRC_INACTIVE mode are listening for paging and performing RRM measurements. The introduction of LP-WUS eliminates the need for the UE to listen for paging at every PO (Paging Occasion). However, based on the standard-defined measurement requirements for disconnected UEs, the UE still needs to wake up at every DRX (Discontinuous Reception) cycle to perform serving cell measurements. Frequently activating the primary receiver will significantly reduce the UE's energy efficiency. To enable the UE's primary receiver to remain off or in deep sleep for longer periods without impacting UE mobility, the design goal for the low-power receiver has been customized to include the ability to measure serving cells. Based on current standardization progress, RAN4 has agreed on the following two scenarios to mitigate the impact of primary receiver RRM measurements:
[0089] Case 1: The UE's primary receiver does not perform measurements for the serving cell or for neighboring cells. Measurements for the serving cell are completely offloaded from the primary receiver to the low-power receiver.
[0090] Case 2: The UE's primary receiver performs relaxed RRM measurements on the serving cell and neighboring cells. The UE's low-power receiver also performs measurements on the serving cell.
[0091] Regarding the criterion of serving cell offloading in case 1 (i.e., the MR (Main Receiver) does not perform serving cell measurements), RAN2 will reach the following conclusion in RAN2#127:
[0092] 1. The entry condition for serving cell offloading is defined as follows: at least the RSRP measured on the serving cell by MR is higher than a certain RSRP threshold, and the measurement results on LR (Low-Power Receiver) can also be considered.
[0093] 2. The departure conditions for serving cell offloading are based on LR measurements.
[0094] V. CA (Carrier Aggregation) Technology
[0095] To provide higher data transmission rates and improve user experience, 5G NR further increases system bandwidth compared to 4G. In 5G NR, for frequency bands below 6 GHz, the maximum bandwidth supported by a single carrier is 100 MHz; for frequency bands above 6 GHz, the maximum bandwidth supported by a single carrier is 400 MHz. Similar to LTE systems, 5G NR also supports CA (Carrier Assist) technology.
[0096] Carrier aggregation, by jointly scheduling and utilizing resources on multiple component carriers (CCs), enables NR systems to support greater bandwidth, thereby achieving higher peak data rates. Based on the continuity of the aggregated carriers in the spectrum, it can be divided into continuous carrier aggregation and discontinuous carrier aggregation; based on whether the aggregated carriers belong to the same band, it can be divided into intra-band (same frequency band) carrier aggregation and inter-band (different frequency band) carrier aggregation. For example, as shown in Figure 3, sub-figure (a) of Figure 3 includes two discontinuous component carriers in the spectrum, which are aggregated into a discontinuous carrier aggregation with a total bandwidth of 40MHz; sub-figure (b) of Figure 3 includes five continuous component carriers in the spectrum, which are aggregated into a continuous carrier aggregation with a total bandwidth of 100MHz.
[0097] Within a Cell Group, there is one and only one Primary Carrier Component (PCC). The PCC provides RRC signaling connectivity, NAS (Non-Access Stratum) functionality, and security. The Secondary Carrier Component (SCC) provides additional radio resources. As shown in Figure 4, both the PCC and SCC are referred to as the serving cell; the PCC corresponds to the PCell, and the SCC corresponds to the SCell (Secondary Cell). For terminal devices supporting CA (Carrier Aggregation) features, in addition to having one PCell, the network device can configure one or more SCells for the terminal device via RRC signaling. The standard also specifies that aggregated carriers belong to the same base station. All aggregated carriers use the same C-RNTI (Cell-Radio Network Temporary Identifier), and the base station implementation ensures that the C-RNTI does not conflict in each carrier's cell. Because both asymmetric and symmetric carrier aggregation are supported, aggregated carriers must have downlink capability, but uplink capability is not required.
[0098] A SCell has two states: active and inactive. Only when a SCell is active can a terminal device send and receive data on that SCell.
[0099] VI. Enhanced Carrier Aggregation (eCA) Technology
[0100] In 5G, existing CA (Carrier Assist) technologies typically rely on the concepts of primary cell (PCell) and secondary cell (SCell). For terminal devices configured with CA, each Cell Group contains one PCell and multiple SCells. Under this 5G CA framework, many processes are limited by the roles of PCell and SCell and are constrained by the cell role, such as BFR (Beam Failure Recovery), TA reference cell (Tracking Area reference cell), cross-carrier scheduling, PUCCH (Physical Uplink Control Channel), PHR (Power Headroom Report), and NAS Mobility Information (such as TAI (Tracking Area Identifier)).
[0101] Based on the analysis of 6G spectrum requirements and existing 4G / 5G carrier aggregation technologies, the 6G control plane needs to evolve further beyond the traditional spectrum aggregation framework to support efficient and flexible spectrum aggregation and improve spectrum utilization. From a sustainability perspective, enhanced 6G carrier aggregation needs to consider energy-saving issues for terminal and network equipment under multi-carrier / bandwidth configurations. From a scalability perspective, enhanced 6G carrier aggregation needs to support the aggregation of more carriers / bandwidths, enabling flexible configuration, scheduling, and switching of uplink / downlink transmission resources.
[0102] In 6G carrier aggregation enhancement, to achieve flexible carrier resource scheduling and configuration (such as flexible association between carriers and related control channels), it is possible to consider natively supporting uplink and downlink decoupling in spectrum aggregation (such as supporting aggregation of UL only carriers); consider weakening the concepts of PCell and SCell, and supporting dynamic conversion between "PCell" and "SCell"; furthermore, it is also possible to consider debinding the current cell and carrier, that is, no longer restricting each carrier to be modeled as a cell, but multiple carriers are modeled together as a cell.
[0103] VII. The concept of big.LITTLE architecture in 6G terminal devices
[0104] In the 6G era, energy saving in terminal devices is a critical technology. To further reduce the power consumption of terminal devices while ensuring 6G performance, related technologies have proposed corresponding ideas, such as the concept of big.LITTLE architecture. This concept mainly refers to the idea that future 6G terminal devices can support a "big.LITTLE" design. In other words, the small core supports a "low activity" state, allowing the terminal device to operate in an extremely energy-efficient state. When there is a large demand for traffic, the terminal device activates the big core to meet more stringent performance requirements.
[0105] It should be noted that in this embodiment, the serving cell can be abbreviated as "cell". Therefore, the primary serving cell can be abbreviated as the primary cell, the primary and secondary serving cells can be abbreviated as the primary and secondary cells, and the secondary serving cell can be abbreviated as the secondary cell.
[0106] The primary purpose of RRM measurements is to facilitate UE mobility management, and RRM measurements are also a major factor in terminal device power consumption. Looking at UE power-saving projects in various 3GPP NR versions, each version discusses how to further relax UE RRM measurements to achieve power savings for terminal devices by reducing RRM measurements. Currently, except for the LP-WUS project, the RRM measurement relaxation introduced in various NR versions is all aimed at neighboring cells. For UEs configured with SCells in connected mode, the UE needs to continuously perform RRM measurements on these SCells based on network device configuration, even if they are inactive. To further reduce terminal device power consumption in 6G, it is necessary to study how to minimize UE measurements on certain CCs without affecting UE mobility and data transmission performance.
[0107] Please refer to Figure 5, which shows a flowchart of a measurement method provided in one embodiment of this application. This method can be applied to the network architecture shown in Figure 1. The method is executed by a terminal device and may include the following step 510.
[0108] Step 510: If the first criterion and / or the second criterion are met, for at least one of the multiple serving carriers of the terminal device, the terminal device performs a relaxed RRM measurement or does not perform an RRM measurement; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0109] Terminal devices can use multiple serving carriers simultaneously to improve data transmission efficiency. In some embodiments, the multiple serving carriers of the terminal device are configured by a network device. In some embodiments, the network device configures and manages multiple serving carriers for the terminal device according to the communication environment and transmission requirements. In some embodiments, the network device sends RRC signaling to the terminal device, the RRC signaling containing RRC configuration information. The RRC configuration information is used to configure and manage the multiple serving carriers of the terminal device. In some embodiments, the RRC configuration information includes carrier configuration information, which indicates the multiple serving carriers configured for the terminal device.
[0110] In some embodiments, the multiple serving carriers include: configured but inactive serving carriers, and configured and activated serving carriers. A configured but inactive serving carrier refers to a serving carrier configured by the network device for the terminal device but not yet activated. Inactive serving carriers do not participate in the data transmission of the terminal device, and the network device can activate inactive serving carriers according to communication needs. Activated serving carriers can participate in the data transmission of the terminal device. It is understood that the multiple serving carriers of the terminal device are multiple serving carriers configured by the network device for the terminal device. During the actual data transmission process of the terminal device, the terminal device uses the configured and activated serving carriers among the multiple serving carriers for data transmission. In some embodiments, the RRC configuration information also includes carrier management information, which is used to activate and / or deactivate at least one of the multiple serving carriers of the terminal device.
[0111] The decision criterion refers to the triggering condition under which a terminal device performs relaxed RRM measurements or does not perform RRM measurements. In some embodiments, the triggering condition is related to factors such as the terminal device's mobility, channel quality, and location. The first criterion includes triggering conditions related to the channel quality of the terminal device's serving carrier. The second criterion includes triggering conditions related to the location of the terminal device and / or the location of the cell corresponding to the serving carrier. Channel quality refers to the transmission performance of the radio channel on the serving carrier, reflecting the degree to which the signal is affected by factors such as noise, interference, and signal attenuation during transmission over that radio channel.
[0112] RRM measurement refers to the process by which a terminal device measures the signal quality of the spectrum resources of the serving cell and neighboring cells. In some embodiments, the measurement results of RRM measurement include, but are not limited to, at least one of the following: RSRP, RSRQ, SINR (Signal to Interference plus Noise Ratio), etc., and may also include other content related to RRM measurement, which is not limited in this application embodiment. In some embodiments, RRM measurement includes at least one of the following types: same-frequency measurement, different-frequency measurement, and different-technology measurement. For any one of the multiple serving carriers of the terminal device, same-frequency measurement refers to the terminal device measuring a cell on the same carrier frequency as the serving carrier. For any one of the multiple serving carriers of the terminal device, different-frequency measurement refers to the terminal device measuring a cell on a different carrier frequency than the serving carrier. For any one of the multiple serving carriers of the terminal device, different-technology measurement refers to the terminal device measuring a cell using a different Radio Access Technology (RAT) than the serving carrier. In some embodiments, the wireless access technology may include, but is not limited to, at least one of the following: LTE, 5G NR, 6G, B5G, WCDMA (Wideband Code Division Multiple Access), GSM (Global System for Mobile Communications), etc., and may also include other wireless access technologies, which are not limited in this application embodiment.
[0113] In some embodiments, performing relaxed RRM measurements on a serving carrier includes increasing the measurement interval of the terminal device on the serving carrier. The measurement interval refers to the time interval between two consecutive RRM measurements performed by the terminal device on the serving carrier. In some embodiments, performing normal RRM measurements on a serving carrier means performing RRM measurements on the serving carrier at a preset measurement interval. In some embodiments, the preset measurement interval is configured by the network device or specified by a related protocol. In some embodiments, the carrier configuration information described above is also used to indicate preset measurement intervals for multiple serving carriers. In some embodiments, when the terminal device is performing discontinuous reception (DRX), the preset measurement interval is related to the period of DRX.
[0114] For example, assuming the preset measurement interval of the serving carrier is T1, if the terminal device performs a relaxed RRM measurement on the serving carrier, provided that the first criterion and / or the second criterion are met, the measurement interval of the terminal device on the serving carrier is increased to K*T1. Here, K is greater than 1. In some embodiments, the value of K is specified by the relevant protocol or configured by the network device.
[0115] In some embodiments, not performing RRM measurements for a serving carrier means that the terminal device stops performing RRM measurements for that serving carrier.
[0116] In summary, the technical solution provided by the embodiments of this application reduces the frequency of RRM measurement on the service carrier without affecting the mobility and data transmission performance of the terminal device, by performing relaxed RRM measurement or not performing RRM measurement on at least one serving carrier of the terminal device, when the terminal device meets the first criterion and / or the second criterion. This reduces the power consumption caused by the terminal device performing RRM measurement on the service carrier.
[0117] The following section details the situations where terminal devices meet the first criterion.
[0118] If the first criterion is met, for at least one of the multiple serving carriers of the terminal device, a relaxed RRM measurement or no RRM measurement is performed. The first criterion is a judgment criterion related to channel quality.
[0119] In some embodiments, the at least one serving carrier may be another serving carrier among a plurality of serving carriers besides the reference serving carrier. In some embodiments, the at least one serving carrier may also be a serving carrier among a plurality of serving carriers that has been configured but not activated, besides the reference serving carrier.
[0120] In some embodiments, the first criterion includes at least one of the following:
[0121] Condition 1: The channel quality measurement results of the terminal equipment on the reference serving carrier meet the low mobility criterion or the stationary criterion;
[0122] Condition 2: The channel quality measurement result of the terminal equipment on the reference serving carrier is greater than or not less than the first quality threshold;
[0123] Condition 3: The channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than the second quality threshold.
[0124] A reference serving carrier refers to the serving carrier that the terminal device measures and evaluates. In some embodiments, the terminal device evaluates the communication environment in which the terminal device is located based on the channel quality of the reference serving carrier.
[0125] In some embodiments, the reference serving carrier may be determined based on reference rules or configured by the network device; this application does not limit this.
[0126] In some embodiments, the reference rule includes: the reference service carrier corresponds to different service carriers depending on the application scenario of the terminal device. In some embodiments, the application scenarios of the terminal device may include, but are not limited to: CA scenario, eCA scenario, and scenario where the terminal device has big.LITTLE cores.
[0127] (1) CA scenario
[0128] In some embodiments, in a CA scenario, the reference serving carrier is the serving carrier corresponding to the PCell of the terminal device.
[0129] In a CA (Carrier-Based) scenario, the multiple serving carriers of a terminal device include one primary carrier and one or more secondary carriers. The primary carrier of the terminal device is the serving carrier corresponding to the PCell of the terminal device. That is, in a CA scenario, the reference serving carrier is the primary carrier of the terminal device.
[0130] (2) eCA scenario
[0131] In the eCA scenario, the reference serving carrier is a serving carrier specified by the network device or a serving carrier agreed upon by the protocol.
[0132] In some embodiments, the reference serving carrier refers to the first serving carrier among a plurality of serving carriers of the terminal device. In some embodiments, the first serving carrier may be any one of the plurality of serving carriers of the terminal device. In some embodiments, the reference serving carrier may be a serving carrier selected by the network device from the plurality of serving carriers of the terminal device, or it may be agreed upon by a relevant protocol.
[0133] (3) Scenarios where terminal devices have big.LITTLE cores
[0134] In scenarios where terminal devices have both big and small cores, the reference serving carrier is the serving carrier for the small core of the terminal device.
[0135] In some embodiments, the terminal device includes large cores and small cores. Large cores are used to process complex, computationally intensive tasks, while small cores are used to process lightweight tasks. In some embodiments, large cores operate on at least one large core service carrier of the terminal device, and small cores operate on the small core service carrier of the terminal device. A large core service carrier refers to the service carrier on which the large core operates, and a small core service carrier refers to the service carrier on which the small core operates. In some embodiments, the multiple service carriers of the terminal device include at least one large core service carrier and one small core service carrier. In some embodiments, at least one large core service carrier and one small core service carrier are configured by a network device.
[0136] The above method adapts to the RRM measurement needs of terminal devices in different application scenarios by configuring different reference service carriers according to different application scenarios.
[0137] In some embodiments, channel quality measurement results include at least one of the following: RSRP and RSRQ. Channel quality measurement results refer to the quality assessment results obtained by the terminal device on the radio channel of the reference serving carrier, used to indicate the signal strength, signal-to-noise ratio, interference level, and link quality of the radio channel. RSRP measures the power strength of the reference signal received by the terminal device on the reference serving carrier, reflecting the strength of the reference signal. RSRQ measures the quality of the reference signal received by the terminal device on the reference serving carrier, reflecting the interference situation of the serving cell corresponding to the reference serving carrier.
[0138] Condition 1:
[0139] The terminal device determines its mobility state based on channel quality measurements on the reference serving carrier. This mobility state can include, but is not limited to, low mobility, stationary, and high mobility, as well as other mobility states. The low mobility criterion is used to determine whether the terminal device is in a low mobility state, that is, whether the terminal device is moving at a low speed. The stationary criterion is used to determine whether the terminal device is stationary.
[0140] In some embodiments, the channel quality measurement results of the terminal device on the reference serving carrier satisfy the low mobility criterion or the stationary criterion, including: the change in the channel quality measurement results of the terminal device on the reference serving carrier within a first time period is less than or not greater than a quality change threshold.
[0141] The first time period refers to the period during which the terminal device continuously evaluates the changes in channel quality measurement results on the reference serving carrier. In some embodiments, the first time period is configured by the network device. In some embodiments, the first time period is configured by the network device by sending a system message to the terminal device, or by sending RRC signaling to the terminal device. In some embodiments, the terminal device performs at least one RRM measurement during the first time period, obtaining at least one channel quality measurement result. The change in the channel quality measurement result of the terminal device on the reference serving carrier refers to the change in the channel measurement result of the terminal device on the reference serving carrier within the first time period. In some embodiments, the change in the channel quality measurement result of the terminal device on the reference serving carrier is the difference between the last channel measurement result and the first channel measurement result within the first time period. In some embodiments, the change in the channel quality measurement result of the terminal device on the reference serving carrier is the difference between the channel measurement result with the largest value and the channel measurement result with the smallest value within the first time period.
[0142] If the change in channel quality measurement results is less than or equal to a quality change threshold, it indicates that the change in channel quality measurement results of the terminal device on the reference serving carrier is slow, thus determining that the terminal device meets the low mobility criterion or the stationary criterion. If the change in channel quality measurement results is greater than or equal to a quality change threshold, it indicates that the change in channel quality measurement results of the terminal device on the reference serving carrier is rapid, thus determining that the terminal device does not meet the low mobility criterion or the stationary criterion.
[0143] In some embodiments, different channel quality measurement results correspond to different quality variation thresholds. In some embodiments, the quality variation thresholds include an RSRP quality variation threshold and an RSRQ quality variation threshold. The RSRP quality variation threshold corresponds to the RSRP in the channel quality measurement result, and the RSRQ quality variation threshold corresponds to the RSRQ in the channel quality measurement result. In some embodiments, the quality variation thresholds are configured by the network device. In some embodiments, the quality variation thresholds are configured by the network device by sending system messages to the terminal device, or by sending RRC signaling to the terminal device.
[0144] For example, when the channel quality measurement result is RSRP, the change in RSRP of the terminal device on the reference serving carrier during the first time period is less than or not greater than the RSRP quality change threshold.
[0145] For example, when the channel quality measurement result is RSRQ, the change in RSRQ of the terminal device on the reference serving carrier during the first time period is less than or not greater than the RSRQ quality change threshold.
[0146] It should be noted that in the embodiments of this application, "not greater than" can be equivalent to "less than or equal to". Similarly, "not less than" can be equivalent to "greater than or equal to".
[0147] Condition 2:
[0148] If the channel quality measurement result of the reference serving carrier is greater than or not less than the first quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is good. If the channel quality measurement result of the reference serving carrier is less than or not greater than the first quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is poor.
[0149] In some embodiments, different channel quality measurement results correspond to different first quality thresholds. In some embodiments, the first quality threshold includes an RSRP quality threshold and an RSRQ quality threshold. The RSRP quality threshold corresponds to the RSRP in the channel quality measurement result, and the RSRQ quality threshold corresponds to the RSRQ in the channel quality measurement result. In some embodiments, the first quality threshold is configured by the network device. In some embodiments, the first quality threshold is configured by the network device by sending a system message to the terminal device, or by sending RRC signaling to the terminal device.
[0150] For example, when the channel quality measurement result of the reference serving carrier is RSRP, if the RSRP reaches or exceeds a preset RSRP quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is good. If the RSRP does not reach the preset RSRP quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is poor.
[0151] For example, when the channel quality measurement result of the reference serving carrier is RSRQ, if the RSRQ reaches or exceeds a preset RSRQ quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is good. If the RSRQ does not reach the preset RSRQ quality threshold, it indicates that the channel quality of the reference serving carrier's radio channel is poor.
[0152] In some embodiments, if condition 2 is met, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for a second serving carrier among a plurality of serving carriers. The second serving carrier shares a site with the reference serving carrier. That is, the second serving carrier refers to a serving carrier that shares the same site as the reference serving carrier.
[0153] For example, in a CA scenario, the second serving carrier is a serving carrier co-located with the primary carrier, and if the channel quality measurement result of the terminal device in the primary cell meets condition 2, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the second serving carrier. The second serving carrier is one of at least one secondary carrier.
[0154] For example, in an eCA scenario, the second serving carrier is a co-located serving carrier with the first serving carrier. If the channel quality measurement result of the terminal device on the first serving carrier meets condition 2, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the second serving carrier. Here, the first and second serving carriers are two serving carriers different from the reference serving carrier.
[0155] For example, in a scenario where the terminal device has both big and small cores, the second serving carrier is a serving carrier co-located with the small core serving carrier. If the channel quality measurement result of the terminal device on the small core serving carrier meets condition 2, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the second serving carrier. Here, the second serving carrier is one of at least one large core serving carrier.
[0156] Condition 3:
[0157] If the channel quality measurement result of the current serving carrier is greater than or not less than the second quality threshold, it indicates that the channel quality of the current serving carrier's radio channel is good. If the channel quality measurement result is less than or not greater than the second quality threshold, it indicates that the channel quality of the current serving carrier's radio channel is poor.
[0158] In some embodiments, the current serving carrier is one of at least one serving carrier.
[0159] In some embodiments, if condition 3 is met, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the current serving carrier and / or at least one serving carrier co-located with the current serving carrier. Here, the current serving carrier and the reference serving carrier are not co-located. In some embodiments, at least one serving carrier includes the current serving carrier and / or at least one serving carrier co-located with the current serving carrier.
[0160] For example, in a CA scenario, the current serving carrier is a serving carrier that is not co-located with the primary carrier, and if the channel quality measurement result of the terminal device on the current serving carrier meets condition 3, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the current serving carrier and / or at least one serving carrier co-located with the current serving carrier. Here, the current serving carrier is one of at least one secondary carrier.
[0161] For example, in an eCA scenario, the current serving carrier is a non-co-located serving carrier with the reference serving carrier, and if the channel quality measurement result of the terminal device on the current serving carrier meets condition 3, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the current serving carrier and / or at least one of the multiple serving carriers co-located with the current serving carrier. Here, the current serving carrier is a serving carrier different from the reference serving carrier.
[0162] For example, in a scenario where the terminal device has both big and small cores, the current serving carrier is a serving carrier that is not co-located with the small core serving carrier, and if the channel quality measurement result of the terminal device on the current serving carrier meets condition 3, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the current serving carrier and / or at least one serving carrier co-located with the current serving carrier. Here, the current serving carrier is one of at least one big core serving carrier.
[0163] In some embodiments, all serving carriers of the terminal device correspond to the same first criterion; or, the terminal device has at least two serving carriers corresponding to different first criteria. That is, the configuration of each serving carrier among the multiple serving carriers of the terminal device with respect to the first criterion can use the same first criterion configuration or different first criterion configurations.
[0164] For example, different first criteria are configured for service carriers co-located with and not co-located with the reference serving carrier. For the first criterion for service carriers co-located with the reference serving carrier, conditions 1 and 2 of the first criterion are configured. That is, in this case, if a service carrier co-located with the reference serving carrier among the multiple carrier sites of the terminal device satisfies conditions 1 and 2 of the first criterion, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the service carrier co-located with the reference serving carrier among the multiple carrier sites. For the first criterion for service carriers not co-located with the reference serving carrier, conditions 1 and 3 of the first criterion are configured. That is, in this case, if a service carrier not co-located with the reference serving carrier among the multiple carrier sites of the terminal device satisfies conditions 1 and 3 of the first criterion, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the service carrier not co-located with the reference serving carrier among the multiple carrier sites.
[0165] In some embodiments, the same quality variation threshold can be configured for different serving carriers, or different quality variation thresholds can be configured. In some embodiments, the same first quality threshold can be configured for different serving carriers, or different first quality thresholds can be configured. In some embodiments, the same second quality threshold can be configured for different serving carriers, or different second quality thresholds can be configured.
[0166] The above method determines whether the terminal device should perform relaxed RRM measurement or not perform RRM measurement on at least one of the multiple service carriers by judging whether the channel quality measurement results of the terminal device on the reference service carrier and / or the current service carrier meet the first criterion. This reduces unnecessary measurements of the terminal device on some service carriers without affecting the mobility performance of the terminal device.
[0167] The following describes the situations where the terminal device meets the first criterion and / or the second criterion.
[0168] In some embodiments, the terminal device is located in a TN or an NTN.
[0169] In the NTN scenario, the terminal device determines, based on the first and second criteria, whether to perform relaxed RRM measurement or not to perform RRM measurement for at least one of the multiple serving carriers of the terminal device.
[0170] In some embodiments, the judgment based on the first criterion and the second criterion may include the following two cases:
[0171] Case 1: Both criteria 1 and 2 are satisfied simultaneously;
[0172] Case 2: At least one of the first and second criteria is met.
[0173] It should be noted that for details regarding the explanations of the first criterion and some of the explanations in the second criterion, please refer to the section on "Situations where the terminal device meets the first criterion" above.
[0174] In some embodiments, the second criterion includes at least one of the following:
[0175] Condition 4: The distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion;
[0176] Condition 5: The distance between the terminal device and the reference point corresponding to the reference serving carrier is less than or not greater than the first distance threshold;
[0177] Condition 6: The distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than the second distance threshold.
[0178] The distance between the terminal device and the reference point corresponding to the reference serving carrier refers to the physical straight-line distance between the terminal device and the reference point corresponding to the reference serving carrier. Optionally, the reference point corresponding to the reference serving carrier refers to the center point of the ground coverage area corresponding to the reference serving carrier. For example, the reference point corresponding to the reference serving carrier is the center point of the ground coverage area corresponding to the reference serving carrier.
[0179] Condition 4:
[0180] Compared to the method used in condition 1 of the first criterion to determine whether the low mobility or stationary criterion is met, the method used in condition 4 of the second criterion differs. In condition 1, the terminal device determines whether the low mobility or stationary criterion is met based on the channel quality measurement results of the terminal device on the reference serving carrier. In condition 4, the terminal device determines whether the low mobility or stationary criterion is met based on the distance between the terminal device and the reference point corresponding to the reference serving carrier.
[0181] Please refer to sub-figure (a) of Figure 6. In the TN system, the RSRP is significantly higher when the terminal device is in the cell center than when it is in the cell edge. Due to the obvious "near-far effect," when the terminal device moves to the cell edge, the signal quality of the serving cell deteriorates while the signal quality of neighboring cells improves. Therefore, mobility management can be based on the terminal device's measurement of cell signal quality.
[0182] Please refer to sub-figure (b) of Figure 6. In the NTN system, the difference in RSRP between terminal devices located at the cell center and those at the cell edge is not significant. Terminal devices cannot easily determine whether they are at the cell edge or in a low-mobility state through RSRP measurements. Therefore, based on condition 1 of the first criterion, condition 4 of the second criterion is added, based on the distance between the terminal device and the reference point corresponding to the reference serving carrier, to determine whether the low-mobility criterion or the stationary criterion is met, thus ensuring the accuracy of the determination regarding the low-mobility criterion or the stationary criterion.
[0183] In some embodiments, the distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion, including: the change in the distance between the terminal device and the reference point corresponding to the reference serving carrier during the second time period is less than or not greater than the distance change threshold.
[0184] The second time period refers to the period during which the terminal device continuously evaluates the change in distance between the terminal device and the reference point corresponding to the reference serving carrier. In some embodiments, the second time period is configured by the network device. In some embodiments, the second time period is configured by the network device by sending a system message to the terminal device or by sending RRC signaling to the terminal device. In some embodiments, the terminal device measures the distance between the terminal device and the reference point corresponding to the reference serving carrier at least twice during the second time period, obtaining at least two distances between the terminal device and the reference point corresponding to the reference serving carrier. The change in distance between the terminal device and the reference point corresponding to the reference serving carrier refers to the change in distance between the terminal device and the reference point corresponding to the reference serving carrier within the second time period. In some embodiments, the change in distance between the terminal device and the reference point corresponding to the reference serving carrier is the difference between the distance between the last terminal device and the reference point corresponding to the reference serving carrier within the second time period and the distance between the first terminal device and the reference point corresponding to the reference serving carrier. In some embodiments, the change in distance between the terminal device and the reference point corresponding to the reference serving carrier is the difference between the maximum value and the minimum value of the distance between the terminal device and the reference point corresponding to the reference serving carrier within the second time period.
[0185] If the change in distance is less than or equal to a distance change threshold, it indicates that the distance between the terminal device and the reference point corresponding to the reference serving carrier changes slowly, thus determining that the terminal device meets the low mobility criterion or the stationary criterion. If the change in distance is greater than or equal to a distance change threshold, it indicates that the change in distance is rapid, thus determining that the terminal device does not meet the low mobility criterion or the stationary criterion.
[0186] Condition 5:
[0187] If the distance between the terminal device and the reference point corresponding to the reference serving carrier is less than or no greater than a first distance threshold, the channel quality of the wireless channel of the reference serving carrier is good. If the distance between the terminal device and the reference point corresponding to the reference serving carrier is greater than or no less than the first distance threshold, the channel quality of the wireless channel of the reference serving carrier is poor. Since the distance between the terminal device and the reference point corresponding to the reference serving carrier is relatively large in NTN scenarios, this distance has a significant impact on the channel quality of the wireless channel of the reference serving carrier. The smaller the distance between the terminal device and the reference point corresponding to the reference serving carrier, the better the channel quality of the wireless channel of the reference serving carrier. Conversely, the larger the distance, the worse the channel quality of the wireless channel of the reference serving carrier.
[0188] In some embodiments, the first distance threshold is configured by the network device. In some embodiments, the first distance threshold is configured by the network device by sending a system message to the terminal device, or by sending RRC signaling to the terminal device.
[0189] In some embodiments, if condition 5 is met, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for a second serving carrier among multiple serving carriers. The second serving carrier shares a site with the reference serving carrier. That is, the second serving carrier refers to a serving carrier that shares the same site as the reference serving carrier.
[0190] Condition 6:
[0191] If the distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than the second distance threshold, it indicates that the channel quality of the radio channel of the current serving carrier is good. If the distance between the terminal device and the reference point corresponding to the current serving carrier is greater than or not less than the second distance threshold, it indicates that the channel quality of the radio channel of the current serving carrier is poor.
[0192] In some embodiments, if condition 6 is met, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the current serving carrier among a plurality of serving carriers and / or at least one serving carrier co-located with the current serving carrier among a plurality of serving carriers. Wherein, the current serving carrier and the reference serving carrier are not co-located.
[0193] In some embodiments, all serving carriers of the terminal device correspond to the same second criterion; or, the terminal device has at least two serving carriers corresponding to different second criteria. That is, the configuration of each serving carrier among the multiple serving carriers of the terminal device with respect to the second criterion can use the same second criterion configuration or different second criterion configurations.
[0194] For example, different second criteria are configured for service carriers co-located with and not co-located with the reference serving carrier. For the second criterion for service carriers co-located with the reference serving carrier, conditions 4 and 5 of the second criterion are configured. That is, in this case, if the terminal device meets conditions 4 and 5 of the second criterion, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the service carrier co-located with the reference serving carrier among multiple carrier sites. For the second criterion for service carriers not co-located with the reference serving carrier, conditions 4 and 6 of the second criterion are configured. That is, in this case, if the terminal device meets conditions 4 and 6 of the second criterion, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for the service carrier not co-located with the reference serving carrier among multiple carrier sites.
[0195] In some embodiments, the same distance variation threshold can be configured for different serving carriers, or different distance variation thresholds can be configured. In some embodiments, the same first distance threshold can be configured for different serving carriers, or different first distance thresholds can be configured. In some embodiments, the same second distance threshold can be configured for different serving carriers, or different second distance thresholds can be configured.
[0196] The above approach, in the NTN scenario, adds a location-based judgment criterion to the channel quality-based judgment criterion in the first criterion, which can effectively overcome the problem that the channel quality in NTN cells is not obvious due to the near-far effect.
[0197] Please refer to Figure 7, which shows a flowchart of a measurement method provided in another embodiment of this application. This method can be applied to the network architecture shown in Figure 1. The method is executed by a terminal device and may include the following step 710.
[0198] Step 710: For at least one of the multiple serving carriers of the terminal device, the terminal device sends first information to the network device. The first information is used to determine the terminal device's satisfaction status with the third criterion. The third criterion is a judgment criterion related to channel quality and / or location.
[0199] Accordingly, the network device receives the first information sent by the terminal device.
[0200] In some embodiments, the terminal device is in a connected state. In some embodiments, the connected state refers to the RRC connected state. When the terminal device is in the RRC connected state, it means that a communication connection has been established between the terminal device and the network device, enabling data transmission, signaling exchange, and radio resource allocation.
[0201] The first information is a reporting message sent by the terminal device to indicate to the network device the terminal device's satisfaction status with the third criterion. In some embodiments, when the terminal device satisfies the third criterion for the first time, the terminal device sends the first information to the network device for at least one of the multiple serving carriers of the terminal device. In some embodiments, when the terminal device's satisfaction status with the third criterion changes, the terminal device sends the first information to the network device for at least one of the multiple serving carriers of the terminal device.
[0202] In some embodiments, the first information is used to determine the state of the terminal device's satisfaction with the third criterion, including: the first information is used to determine the state of each of the at least one serving carriers' satisfaction with the third criterion. In some embodiments, the first information includes state information of at least one serving carrier, and the state information of each serving carrier is used to indicate whether the serving carrier satisfies the third criterion.
[0203] In some embodiments, before sending the first information to the network device, the terminal device performs RRM measurements on multiple serving carriers of the terminal device and determines whether the multiple serving carriers meet the third criterion.
[0204] In some embodiments, relaxed RRM measurements are performed or no RRM measurements are performed for at least one serving carrier.
[0205] In some embodiments, if the terminal device meets the third criterion, the terminal device performs relaxed RRM measurement or does not perform RRM measurement for at least one serving carrier that meets the third criterion, and sends first information to the network device. That is, the terminal device determines whether to perform relaxed RRM measurement or not perform RRM measurement for at least one serving carrier based on whether the terminal device meets the third criterion, and indicates to the network device whether the terminal device meets the third criterion.
[0206] In some embodiments, if the terminal device meets the third criterion, the terminal device sends first information to the network device. That is, the terminal device indicates to the network device whether it meets the third criterion, but does not actively perform relaxed RRM measurements or does not perform RRM measurements for at least one serving carrier. In some embodiments, after receiving the first information sent by the terminal device, the network device sends second information to the terminal device, the second information being used to adjust the terminal device's RRM measurements. In some embodiments, based on the received second information, the terminal device performs relaxed RRM measurements or does not perform RRM measurements for at least one serving carrier.
[0207] In some embodiments, at least one serving carrier includes: all serving carriers of the terminal device; or, other serving carriers among all serving carriers of the terminal device except for the reference serving carrier; or, the serving carrier that the terminal device is triggered to report.
[0208] In some embodiments, when the terminal device first satisfies the third criterion, the service carrier triggered for reporting by the terminal device may be one of the multiple service carriers of the terminal device that satisfies the third criterion. In some embodiments, when the satisfaction state of the third criterion of the terminal device changes, the service carrier triggered for reporting by the terminal device may be one of the multiple service carriers of the terminal device whose satisfaction state of the third criterion has changed. For example, service carriers whose satisfaction state of the third criterion has changed include: service carriers that change from satisfying the third criterion to not satisfying the third criterion, and service carriers that change from not satisfying the third criterion to satisfying the third criterion.
[0209] In some embodiments, the first information is carried in the terminal auxiliary information or in the terminal measurement report.
[0210] UE Assistance Information (UAI) is sent by the terminal device to report information such as the terminal device's status, needs, and measurement results to the network device. In some embodiments, UAI includes at least one of the following: mobility assistance information, carrier aggregation information, measurement assistance information, load information, etc., and may also include other information, which is not described in this embodiment. Mobility assistance information is used to indicate the mobility status of the terminal device, such as whether the terminal device is in a low-mobility state or whether the terminal device is stationary. In CA scenarios, carrier aggregation information is used to indicate the terminal device's need for multiple serving carriers, or the terminal device's request to activate or deactivate auxiliary carriers. Measurement assistance information is used to indicate the channel quality information of the radio channels measured by the terminal device, such as the measurement assistance information including the terminal device's channel quality measurement results on multiple auxiliary carriers. Load information is used to indicate the load status of the uplink and / or downlink used by the terminal device.
[0211] The terminal measurement report is used to report channel quality information of the wireless channel measured by the terminal device, including measurement information related to the wireless channel measured by the terminal device. In some embodiments, the terminal measurement report may include, but is not limited to, RSRP, RSRQ, SINR, etc., and may also include other measurement-related information, which is not limited in this application embodiment.
[0212] The above method, by carrying the first information in the terminal auxiliary information or terminal measurement report, eliminates the need to transmit the first information separately, reduces signaling overhead, and improves the efficiency of communication between terminal devices and network devices.
[0213] In some embodiments, the third criterion includes a first criterion and / or a second criterion, wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0214] It should be noted that for details regarding the first and second criteria, please refer to the corresponding sections above, namely "The case where the terminal device meets the first criterion" and "The case where the terminal device meets the first and / or second criteria".
[0215] In some embodiments, the first criterion includes at least one of the following:
[0216] Condition 1: The channel quality measurement results of the terminal equipment on the reference serving carrier meet the low mobility criterion or the stationary criterion;
[0217] Condition 2: The channel quality measurement result of the terminal equipment on the reference serving carrier is greater than or not less than the first quality threshold;
[0218] Condition 3: The channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than the second quality threshold.
[0219] In some embodiments, the channel quality measurement results of the terminal device on the reference serving carrier meet the low mobility criterion or the stationary criterion, including:
[0220] The channel quality measurement results of the terminal equipment on the reference serving carrier change less than or no greater than the quality change threshold within the first time period.
[0221] In some embodiments, channel quality measurement results include at least one of the following: RSRP, RSRQ.
[0222] In some embodiments, the second criterion includes at least one of the following:
[0223] Condition 4: The distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion;
[0224] Condition 5: The distance between the terminal device and the reference point corresponding to the reference serving carrier is less than or not greater than the first distance threshold;
[0225] Condition 6: The distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than the second distance threshold.
[0226] In some embodiments, the distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion, including: the change in the distance between the terminal device and the reference point corresponding to the reference serving carrier during the second time period is less than or not greater than the distance change threshold.
[0227] In some embodiments, in a CA scenario, the reference service carrier is the service carrier corresponding to the PCell of the terminal device; in an eCA scenario, the reference service carrier is a service carrier specified by the network device or a service carrier agreed upon by the protocol; in a scenario where the terminal device has big and small cores, the reference service carrier is the service carrier in which the small core of the terminal device operates.
[0228] In some embodiments, the plurality of service carriers includes: a configured but inactive service carrier, and a configured and activated service carrier.
[0229] In some embodiments, the terminal device is located in a TN or an NTN.
[0230] In summary, the technical solution provided in this application embodiment, when the terminal device meets the third criterion, the terminal device sends first information to the network device to report the satisfaction status of the third criterion of the terminal device. By introducing the first information, the network device is assisted in configuring a more relaxed RRM measurement for the terminal device, thereby achieving the effect of energy saving of the terminal device.
[0231] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.
[0232] Please refer to Figure 8, which shows a block diagram of a measuring device provided in one embodiment of this application. This device has the function of implementing the above-described measuring method; the function can be implemented by hardware or by hardware executing corresponding software. This device can be the terminal device described above, or it can be installed within a terminal device. As shown in Figure 8, the device 800 may include a processing module 810.
[0233] The processing module 810 is configured to perform relaxed RRM measurement or not perform RRM measurement for at least one of a plurality of serving carriers of the terminal device, provided that a first criterion and / or a second criterion are met; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0234] In some embodiments, the first criterion includes at least one of the following: the channel quality measurement result of the terminal device on the reference serving carrier satisfies the low mobility criterion or the stationary criterion; the channel quality measurement result of the terminal device on the reference serving carrier is greater than or not less than a first quality threshold; the channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than a second quality threshold.
[0235] In some embodiments, the channel quality measurement results of the terminal device on the reference serving carrier satisfy the low mobility criterion or the stationary criterion, including: the change in the channel quality measurement results of the terminal device on the reference serving carrier within a first time period is less than or not greater than a quality change threshold.
[0236] In some embodiments, the channel quality measurement results include at least one of the following: RSRP, RSRQ.
[0237] In some embodiments, the second criterion includes at least one of the following: the distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion; the distance between the terminal device and the reference point corresponding to the reference serving carrier is less than or not greater than a first distance threshold; the distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than a second distance threshold.
[0238] In some embodiments, the change in distance between the terminal device and the reference point corresponding to the reference service carrier during the second time period is less than or not greater than a distance change threshold.
[0239] In some embodiments, in a CA scenario, the reference service carrier is the service carrier corresponding to the PCell of the terminal device; in an eCA scenario, the reference service carrier is a service carrier specified by the network device or a service carrier agreed upon by the protocol; in a scenario where the terminal device has big and small cores, the reference service carrier is the service carrier in which the small core of the terminal device operates.
[0240] In some embodiments, the current serving carrier is one of the at least one serving carriers.
[0241] In some embodiments, all serving carriers of the terminal device correspond to the same first criterion; or, the terminal device has at least two serving carriers that correspond to different first criteria.
[0242] In some embodiments, all serving carriers of the terminal device correspond to the same second criterion; or, the terminal device has at least two serving carriers that correspond to different second criteria.
[0243] In some embodiments, the processing module 810 is configured to increase the measurement interval of the terminal device on the serving carrier.
[0244] In some embodiments, the plurality of service carriers includes: a configured but inactive service carrier, and a configured and activated service carrier.
[0245] In some embodiments, the terminal device is located in a TN or in an NTN.
[0246] In summary, the technical solution provided by the embodiments of this application reduces the frequency of RRM measurement on the service carrier without affecting the mobility and data transmission performance of the terminal device, by performing relaxed RRM measurement or not performing RRM measurement on at least one serving carrier of the terminal device, when the terminal device meets the first criterion and / or the second criterion. This reduces the power consumption caused by the terminal device performing RRM measurement on the service carrier.
[0247] Please refer to Figure 9, which shows a block diagram of a measuring device provided in another embodiment of this application. This device has the function of implementing the above-described measuring method; the function can be implemented by hardware or by hardware executing corresponding software. This device can be the terminal device described above, or it can be installed within a terminal device. As shown in Figure 9, the device 900 may include a transmitting module 910.
[0248] The sending module 910 is configured to send first information to the network device for at least one of the multiple service carriers of the terminal device, wherein the first information is used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
[0249] In some embodiments, the third criterion includes a first criterion and / or a second criterion, wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0250] In some embodiments, the first criterion includes at least one of the following: the channel quality measurement result of the terminal device on the reference serving carrier satisfies the low mobility criterion or the stationary criterion; the channel quality measurement result of the terminal device on the reference serving carrier is greater than or not less than a first quality threshold; the channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than a second quality threshold.
[0251] In some embodiments, the channel quality measurement results of the terminal device on the reference serving carrier satisfy the low mobility criterion or the stationary criterion, including: the change in the channel quality measurement results of the terminal device on the reference serving carrier within a first time period is less than or not greater than a quality change threshold.
[0252] In some embodiments, the channel quality measurement results include at least one of the following: RSRP, RSRQ.
[0253] In some embodiments, the second criterion includes at least one of the following: the distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion; the distance between the terminal device and the reference point corresponding to the reference serving carrier is less than or not greater than a first distance threshold; the distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than a second distance threshold.
[0254] In some embodiments, the distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion, including: the change in the distance between the terminal device and the reference point corresponding to the reference serving carrier during the second time period is less than or not greater than the distance change threshold.
[0255] In some embodiments, in a CA scenario, the reference service carrier is the service carrier corresponding to the primary cell PCell of the terminal device; in an eCA scenario, the reference service carrier is a service carrier specified by the network device or a service carrier agreed upon by the protocol; in a scenario where the terminal device has big and small cores, the reference service carrier is the service carrier in which the small core of the terminal device operates.
[0256] In some embodiments, the first information is carried in terminal auxiliary information or in a terminal measurement report.
[0257] In some embodiments, the first information is used to determine the state of the terminal device's satisfaction with the third criterion, including: the first information is used to determine the state of each of the at least one serving carriers' satisfaction with the third criterion.
[0258] In some embodiments, the at least one serving carrier includes: all serving carriers of the terminal device; or, other serving carriers among all serving carriers of the terminal device except for the reference serving carrier; or, the serving carrier that the terminal device is triggered to report.
[0259] In some embodiments, the device 900 further includes a processing module 920.
[0260] Processing module 920 is configured to perform relaxed RRM measurements or not perform RRM measurements for the at least one serving carrier.
[0261] In some embodiments, the plurality of service carriers includes: a configured but inactive service carrier, and a configured and activated service carrier.
[0262] In some embodiments, the terminal device is located in a TN or in an NTN.
[0263] In some embodiments, the terminal device is in a connected state.
[0264] In summary, the technical solution provided in this application embodiment, when the terminal device meets the third criterion, the terminal device sends first information to the network device to report the satisfaction status of the third criterion of the terminal device. By introducing the first information, the network device is assisted in configuring a more relaxed RRM measurement for the terminal device, thereby achieving the effect of energy saving of the terminal device.
[0265] It should be noted that the above embodiments only illustrate the division of the above functional modules when implementing the device. In actual applications, the above functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0266] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here. For details not described in detail in the apparatus embodiments, please refer to the above method embodiments.
[0267] Please refer to Figure 10, which shows a schematic diagram of the structure of a terminal device provided in one embodiment of this application. The terminal device 1000 may include a processor 1001, a transceiver 1002, and a memory 1003. The transceiver 1002 is used to implement sending and / or receiving functions, such as implementing the functions of the aforementioned sending and / or receiving modules. The processor can be used to implement other processing functions or control sending and / or receiving, such as implementing the functions of the aforementioned processing modules.
[0268] The processor 1001 includes one or more processing cores. The processor 1001 executes various functional applications and information processing by running software programs and modules.
[0269] The transceiver 1002 may include a receiver and a transmitter. For example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.
[0270] The memory 1003 can be connected to the processor 1001 and the transceiver 1002.
[0271] The memory 1003 can be used to store computer programs executed by the processor, and the processor 1001 is used to execute the computer programs.
[0272] In some embodiments, the processor 1001 is configured to perform relaxed RRM measurement or not perform RRM measurement for at least one of a plurality of serving carriers of the terminal device, provided that a first criterion and / or a second criterion are met; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
[0273] In some embodiments, transceiver 1002 is configured to send first information to network device for at least one of a plurality of serving carriers of the terminal device, the first information being used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
[0274] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.
[0275] Furthermore, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, statically accessible memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.
[0276] This application also provides a computer-readable storage medium storing a computer program that is executed by a processor to implement the above-described measurement method. In some embodiments, the computer-readable storage medium may include ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).
[0277] This application also provides a chip, which includes programmable logic circuits and / or program instructions, and is used to implement the above measurement method when the chip is running.
[0278] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-described measurement method.
[0279] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.
[0280] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.
[0281] In some embodiments of this application, "predefined" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.
[0282] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of these protocols.
[0283] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0284] In this article, "greater than or equal to" can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.
[0285] Furthermore, the step numbers described herein are merely illustrative of one possible execution order between steps. In some other embodiments, the steps may not be executed in the order of their numbers, such as two steps with different numbers being executed simultaneously, or two steps with different numbers being executed in the reverse order of the illustration. This application does not limit this.
[0286] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.
[0287] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A measurement method, characterized in that, The method is executed by a terminal device, and the method includes: If the first criterion and / or the second criterion are met, for at least one of the multiple serving carriers of the terminal device, relaxed radio resource management (RRM) measurement is performed or no RRM measurement is performed; wherein the first criterion is a channel quality-related judgment criterion and the second criterion is a location-related judgment criterion.
2. The method according to claim 1, characterized in that, The first criterion includes at least one of the following: The channel quality measurement results of the terminal device on the reference serving carrier meet the low mobility criterion or the stationary criterion. The channel quality measurement result of the terminal device on the reference serving carrier is greater than or not less than the first quality threshold. The channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than the second quality threshold.
3. The method according to claim 2, characterized in that, The channel quality measurement results of the terminal device on the reference serving carrier meet the low mobility criterion or the stationary criterion, including: The channel quality measurement result of the terminal device on the reference serving carrier changes by less than or no greater than the quality change threshold within the first time period.
4. The method according to claim 2 or 3, characterized in that, The channel quality measurement results include at least one of the following: Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ).
5. The method according to any one of claims 1 to 4, characterized in that, The second criterion includes at least one of the following: The distance between the terminal device and the reference point corresponding to the reference service carrier satisfies the low mobility criterion or the stationary criterion. The distance between the terminal device and the reference point corresponding to the reference service carrier is less than or not greater than a first distance threshold. The distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than the second distance threshold.
6. The method according to claim 5, characterized in that, The distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion, including: The distance between the terminal device and the reference point corresponding to the reference service carrier changes less than or no greater than the distance change threshold during the second time period.
7. The method according to any one of claims 2 to 6, characterized in that, In a carrier aggregation (CA) scenario, the reference serving carrier is the serving carrier corresponding to the primary cell PCell of the terminal device; In the enhanced carrier aggregation (eCA) scenario, the reference service carrier is a service carrier specified by the network device or a service carrier agreed upon by the protocol. In a scenario where the terminal device has both big and small cores, the reference service carrier is the service carrier in which the small core of the terminal device operates.
8. The method according to any one of claims 1 to 7, characterized in that, The current service carrier is one of the at least one service carriers.
9. The method according to any one of claims 1 to 8, characterized in that, All serving carriers of the terminal device correspond to the same first criterion; or... The terminal device has at least two service carriers corresponding to different first criteria.
10. The method according to any one of claims 1 to 9, characterized in that, All serving carriers of the terminal device correspond to the same second criterion; or... The terminal device has at least two service carriers corresponding to different second criteria.
11. The method according to any one of claims 1 to 10, characterized in that, Performing relaxed RRM measurements for the serving carrier includes increasing the measurement interval of the terminal device on the serving carrier.
12. The method according to any one of claims 1 to 11, characterized in that, The plurality of service carriers includes: configured but not activated service carriers, and configured and activated service carriers.
13. The method according to any one of claims 1 to 12, characterized in that, The terminal device is located in a terrestrial network (TN) or in a non-terrestrial network (NTN).
14. A measurement method, characterized in that, The method is executed by a terminal device, and the method includes: For at least one of the multiple serving carriers of the terminal device, first information is sent to the network device, the first information being used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
15. The method according to claim 14, characterized in that, The third criterion includes the first criterion and / or the second criterion, wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
16. The method according to claim 15, characterized in that, The first criterion includes at least one of the following: The channel quality measurement results of the terminal device on the reference serving carrier meet the low mobility criterion or the stationary criterion. The channel quality measurement result of the terminal device on the reference serving carrier is greater than or not less than the first quality threshold. The channel quality measurement result of the terminal device on the current serving carrier is greater than or not less than the second quality threshold.
17. The method according to claim 16, characterized in that, The channel quality measurement results of the terminal device on the reference serving carrier meet the low mobility criterion or the stationary criterion, including: The channel quality measurement result of the terminal device on the reference serving carrier changes by less than or no greater than the quality change threshold within the first time period.
18. The method according to claim 15 or 16, characterized in that, The channel quality measurement results include at least one of the following: Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ).
19. The method according to any one of claims 15 to 18, characterized in that, The second criterion includes at least one of the following: The distance between the terminal device and the reference point corresponding to the reference service carrier satisfies the low mobility criterion or the stationary criterion. The distance between the terminal device and the reference point corresponding to the reference service carrier is less than or not greater than a first distance threshold. The distance between the terminal device and the reference point corresponding to the current serving carrier is less than or not greater than the second distance threshold.
20. The method according to claim 19, characterized in that, The distance between the terminal device and the reference point corresponding to the reference serving carrier satisfies the low mobility criterion or the stationary criterion, including: The distance between the terminal device and the reference point corresponding to the reference service carrier changes less than or no greater than the distance change threshold during the second time period.
21. The method according to any one of claims 16 to 20, characterized in that, In a carrier aggregation (CA) scenario, the reference serving carrier is the serving carrier corresponding to the primary cell PCell of the terminal device; In the enhanced carrier aggregation (eCA) scenario, the reference service carrier is a service carrier specified by the network device or a service carrier agreed upon by the protocol. In a scenario where the terminal device has both big and small cores, the reference service carrier is the service carrier in which the small core of the terminal device operates.
22. The method according to any one of claims 14 to 21, characterized in that, The first information is carried in the terminal auxiliary information or in the terminal measurement report.
23. The method according to any one of claims 14 to 22, characterized in that, The first information is used to determine the state of the terminal device's satisfaction with the third criterion, including: The first information is used to determine the satisfaction status of each of the at least one serving carriers with respect to the third criterion.
24. The method according to any one of claims 14 to 23, characterized in that, The at least one serving carrier includes: All service carriers of the terminal device; or The other service carriers of the terminal device, excluding the reference service carrier; or... The service carrier reported by the terminal device upon triggering.
25. The method according to any one of claims 14 to 24, characterized in that, The method further includes: For the at least one serving carrier, perform relaxed Radio Resource Management (RRM) measurements or do not perform RRM measurements.
26. The method according to any one of claims 14 to 25, characterized in that, The plurality of service carriers includes: configured but not activated service carriers, and configured and activated service carriers.
27. The method according to any one of claims 14 to 26, characterized in that, The terminal device is located in a terrestrial network (TN) or in a non-terrestrial network (NTN).
28. The method according to any one of claims 14 to 27, characterized in that, The terminal device is in a connected state.
29. A measuring device, characterized in that, The device includes: The processing module is configured to perform relaxed radio resource management (RRM) measurement or not perform RRM measurement for at least one of a plurality of serving carriers of the terminal device, provided that a first criterion and / or a second criterion are met; wherein the first criterion is a judgment criterion related to channel quality and the second criterion is a judgment criterion related to location.
30. A measuring device, characterized in that, The device includes: The transmitting module is configured to transmit first information to the network device for at least one of a plurality of serving carriers of the terminal device, wherein the first information is used to determine the state of the terminal device's satisfaction with a third criterion; wherein the third criterion is a judgment criterion related to channel quality and / or location.
31. A terminal device, characterized in that, The terminal device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the method as claimed in any one of claims 1 to 13, or to implement the method as claimed in any one of claims 14 to 28.
32. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that is executed by a processor to implement the method as described in any one of claims 1 to 13, or the method as described in any one of claims 14 to 28.
33. A chip, characterized in that, The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the method as described in any one of claims 1 to 13, or to implement the method as described in any one of claims 14 to 28.
34. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, which a processor reads from and executes to implement the method as claimed in any one of claims 1 to 13, or the method as claimed in any one of claims 14 to 28.
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