Beam evaluation method, terminal, network device, system, and storage medium
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-02
Smart Images

Figure CN2024141596_02072026_PF_FP_ABST
Abstract
Description
Beam evaluation methods, terminals, network devices, systems, and storage media Technical Field
[0001] This disclosure relates to the field of communications, and in particular to beam evaluation methods, terminals, network devices, systems, and storage media. Background Technology
[0002] Currently, network devices can provide terminals with one or more candidate configurations, where each candidate configuration can include one or more cells or cell groups. The network device can then control the terminal to change between these candidate configurations, thereby enabling mobility management of the terminal. Summary of the Invention
[0003] To improve the reliability of mobility management, embodiments of this disclosure provide a beam assessment method, a terminal, a network device, a system, and a storage medium.
[0004] According to a first aspect of the present disclosure, a beam evaluation method is provided, the method being executed by a terminal, the method comprising:
[0005] There are multiple first beams. The signal on each first beam is measured during a first time period to determine the measurement result. The first beam is a beam available to the terminal or a beam used by the terminal.
[0006] Based on the measurement results, the measurement event is evaluated, and an evaluation result is determined; wherein, the evaluation result is used to indicate whether the measurement event is satisfied.
[0007] According to a second aspect of the present disclosure, a beam evaluation method is provided, the method being performed by a network device, the method comprising:
[0008] The first beam consists of multiple beams that send measurement reporting configurations to the terminal; wherein the measurement reporting configurations include measurement event configurations; and wherein the first beam is a beam available to the terminal or a beam used by the terminal.
[0009] According to a third aspect of the present disclosure, a terminal is provided, comprising:
[0010] There are multiple first beams. The signal on each first beam is measured during a first time period to determine the measurement result. The first beam is a beam available to the terminal or a beam used by the terminal.
[0011] Based on the measurement results, the measurement event is evaluated, and an evaluation result is determined; wherein, the evaluation result is used to indicate whether the measurement event is satisfied.
[0012] According to a fourth aspect of the present disclosure, a network device is provided, comprising:
[0013] The first beam consists of multiple beams that send measurement reporting configurations to the terminal; wherein the measurement reporting configurations include measurement event configurations; and wherein the first beam is a beam available to the terminal or a beam used by the terminal.
[0014] According to a fifth aspect of the present disclosure, a terminal is provided, comprising:
[0015] One or more processors;
[0016] The processor is used to execute the method described in any one of the first aspects.
[0017] According to a sixth aspect of the present disclosure, a network device is provided, comprising:
[0018] One or more processors;
[0019] The processor is used to execute the beam evaluation method described in any one of the second aspects.
[0020] According to a seventh aspect of the present disclosure, a communication system is provided, comprising:
[0021] A terminal, the terminal being configured to implement the beam evaluation method as described in any one of the first aspects;
[0022] A network device configured to implement the beam evaluation method described in any one of the second aspects.
[0023] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform a beam evaluation method as described in any one of the first or second aspects.
[0024] According to a ninth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, is used to implement the beam evaluation method described in any one of the first or second aspects.
[0025] In this embodiment of the disclosure, when there are multiple first beams, the terminal can evaluate the measurement event based on the measurement results of the signals measured on each first beam within a first time period, thereby determining the evaluation result. Here, the first beam is a beam available to the terminal or a beam used by the terminal. This reduces the number of times the terminal reports measurements in multi-beam scenarios, improves the reliability of mobility management, reduces the possibility of ping-pong handover, and ensures high availability.
[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0028] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.
[0029] Figure 2 is an exemplary interactive schematic diagram of a beam evaluation method provided according to an embodiment of the present disclosure.
[0030] Figure 3A is one of the exemplary flowcharts of a beam evaluation method provided according to an embodiment of the present disclosure.
[0031] Figure 3B is a second exemplary flowchart of a beam evaluation method provided according to an embodiment of the present disclosure.
[0032] Figure 3C is a third exemplary flowchart of a beam evaluation method provided according to an embodiment of the present disclosure.
[0033] Figure 3D is a fourth exemplary flowchart of a beam evaluation method provided according to an embodiment of the present disclosure.
[0034] Figure 4A is one of the exemplary schematic diagrams of a beam evaluation method provided according to an embodiment of the present disclosure.
[0035] Figure 4B is a second exemplary schematic diagram of a beam evaluation method provided according to an embodiment of the present disclosure.
[0036] Figure 4C is a third exemplary schematic diagram of a beam evaluation method provided according to an embodiment of the present disclosure.
[0037] Figure 4D is a fourth exemplary schematic diagram of a beam evaluation method provided according to an embodiment of the present disclosure.
[0038] Figure 5A is an exemplary block diagram of a terminal provided according to an embodiment of the present disclosure.
[0039] Figure 5B is an exemplary block diagram of a network device provided according to an embodiment of the present disclosure.
[0040] Figure 6A is an exemplary interactive schematic diagram of a communication device provided according to an embodiment of the present disclosure.
[0041] Figure 6B is an exemplary interactive schematic diagram of a chip provided according to an embodiment of the present disclosure. Detailed Implementation
[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.
[0043] This disclosure presents a beam evaluation method, a terminal, a network device, a system, and a storage medium.
[0044] In a first aspect, embodiments of this disclosure propose a beam evaluation method, which is executed by a terminal. The method includes: having a plurality of first beams; measuring the signal on each of the first beams within a first time period; and determining a measurement result; wherein the first beam is a beam available to the terminal or a beam used by the terminal; evaluating a measurement event based on the measurement result; and determining an evaluation result; wherein the evaluation result is used to indicate whether the measurement event is satisfied.
[0045] In the above embodiments, the number of times the terminal performs measurement reporting in multi-beam scenarios is reduced, the reliability of mobility management is improved, the possibility of ping-pong handover is reduced, and availability is high.
[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the step of evaluating the measurement event based on the measurement result and determining the evaluation result includes at least one of the following: within the first time period, if the signal value measured on any of the first beams satisfies the measurement event, the evaluation result is determined to satisfy the measurement event; if the first number corresponding to any of the first beams is greater than or equal to a first value, the evaluation result is determined to satisfy the measurement event; wherein, the first number is the number of times the signal value measured on the first beams within the first time period satisfies the measurement event.
[0047] In the above embodiments, the terminal can determine the evaluation result based on the signal value measured on any first beam, which is simple to implement and highly usable.
[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the step of evaluating the measurement event based on the measurement result and determining the evaluation result includes at least one of the following: within the first time period, the signal value measured on each of the first beams satisfies the measurement event, and the evaluation result is determined to satisfy the measurement event; the first number corresponding to each of the first beams is greater than or equal to a first value, and the evaluation result is determined to satisfy the measurement event; wherein, the first number is the number of times the signal value measured on the first beams within the first time period satisfies the measurement event.
[0049] In the above embodiments, the terminal can determine the evaluation result based on the signal value measured on each first beam, which is simple to implement and highly usable.
[0050] In conjunction with some embodiments of the first aspect, in some embodiments, satisfying the measurement event includes any one of the following: satisfying an entry condition for the measurement event; wherein the entry condition is a condition for triggering the measurement event; satisfying a departure condition for the measurement event; wherein the departure condition is a condition for canceling the measurement event.
[0051] In the above embodiments, the terminal can determine the measurement event based on any of the above, which reduces the number of times the terminal reports measurements in multi-beam scenarios, improves the reliability of mobility management, reduces the possibility of ping-pong handover, and has high availability.
[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes any one of the following: if the evaluation result satisfies the entry condition of the measurement event, the measurement result is reported to the network device; if the evaluation result does not satisfy the entry condition of the measurement event, measurement reporting is stopped; if the evaluation result satisfies the exit condition of the measurement event, measurement reporting is stopped; if the evaluation result does not satisfy the exit condition of the measurement event, the measurement result is reported to the network device.
[0053] In the above embodiments, the terminal reports measurement results or stops reporting based on the evaluation results, which reduces the number of times the terminal reports measurements in multi-beam scenarios, improves the reliability of mobility management, reduces the possibility of ping-pong handover, and has high availability.
[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving a measurement reporting configuration sent by a network device; wherein the measurement reporting configuration includes a measurement event configuration.
[0055] In the above embodiments, the terminal can receive measurement reporting configurations sent by network devices, thereby performing measurements and evaluations, which improves the reliability of mobility management.
[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement event configuration is used to configure at least one of the following: the duration of a first time period; a first value; wherein the first value is a threshold value for the first number, and the first number is the number of times the signal quality of the first beam satisfies the measurement event within the first time period; a second value; wherein the second value is a signal threshold value; and the signal being measured.
[0057] In the above embodiments, the measurement event configuration can be configured with at least one of the above to enable the terminal to perform measurement and evaluation, thereby improving the reliability of determining measurement results and the evaluation process and increasing availability.
[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the signal includes at least one of the following: a synchronization signal block (SSB); and a channel state information reference signal (CSI-RS).
[0059] In the above embodiments, the terminal can measure SSB and / or CSI-RS, which is simple to implement and highly usable.
[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following: determining the first beam based on a Media Access Control Unit (MAC CE) sent by a network device; wherein the MAC CE is used to activate a beam available to the terminal; determining the first beam based on downlink control information (DCI) sent by a network device; wherein the DCI is used to indicate the beam used by the terminal.
[0061] In the above embodiments, the terminal can use the above method to determine the first beam, which improves the reliability of determining the first beam and has high availability.
[0062] Secondly, embodiments of this disclosure propose a beam evaluation method, which is executed by a network device. The method includes: sending a measurement reporting configuration to a terminal, wherein the number of first beams is multiple; wherein the measurement reporting configuration includes a measurement event configuration; and wherein the first beam is a beam available to the terminal or a beam used by the terminal.
[0063] In conjunction with some embodiments of the second aspect, in some embodiments, the measurement event configuration is used to configure at least one of the following: the duration of a first time period; a first value; wherein the first value is a threshold value corresponding to the first number, and the first number is the number of times the signal quality of the first beam satisfies the measurement event within the first time period; a second value; wherein the second value is a signal threshold value; and the signal being measured.
[0064] In conjunction with some embodiments of the second aspect, in some embodiments, the signal includes at least one of the following: a synchronization signal block (SSB); and a channel state information reference signal (CSI-RS).
[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following: sending a Media Access Control Unit (MAC CE) to the terminal; wherein the MAC CE is used to activate a beam available to the terminal; sending Downlink Control Information (DCI) to the terminal; wherein the DCI is used to indicate the beam used by the terminal.
[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following: receiving the measurement result reported by the terminal when the evaluation result satisfies the entry condition of the measurement event; wherein the entry condition is a condition for triggering the measurement event; receiving the measurement result reported by the terminal when the evaluation result does not satisfy the exit condition of the measurement event; wherein the exit condition is a condition for canceling the measurement event.
[0067] Thirdly, embodiments of this disclosure propose a terminal, comprising: a plurality of first beams, measuring the signal on each of the first beams within a first time period and determining a measurement result; wherein the first beam is a beam available to the terminal or a beam used by the terminal; and evaluating a measurement event based on the measurement result and determining an evaluation result; wherein the evaluation result is used to indicate whether the measurement event is satisfied.
[0068] Fourthly, embodiments of this disclosure provide a network device, comprising: a plurality of first beams, for sending measurement reporting configuration to a terminal; wherein the measurement reporting configuration includes measurement event configuration; wherein the first beam is a beam available to the terminal or a beam used by the terminal.
[0069] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the processors are configured to perform the method described in any one of the first aspects.
[0070] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the processors are configured to perform the beam evaluation method described in any of the second aspects.
[0071] In a seventh aspect, embodiments of this disclosure provide a communication system comprising: a terminal configured to implement the beam evaluation method described in any one of the first aspects; and a network device configured to implement the beam evaluation method described in any one of the second aspects.
[0072] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform a beam evaluation method as described in any one of the first or second aspects.
[0073] In a ninth aspect, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, is used to implement the beam evaluation method described in any one of the first or second aspects.
[0074] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.
[0075] This disclosure provides a beam evaluation method, a terminal, a network device, a system, and a storage medium. In some embodiments, the terms beam evaluation method, information processing method, and communication method may be used interchangeably.
[0076] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.
[0077] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.
[0078] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.
[0079] In the embodiments of this disclosure, "multiple" refers to two or more.
[0080] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.
[0081] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.
[0082] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.
[0083] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.
[0084] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0085] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.
[0086] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.
[0087] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.
[0088] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.
[0089] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).
[0090] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.
[0091] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.
[0092] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.
[0093] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.
[0094] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.
[0095] In some embodiments, data, information, etc., may be obtained with the user's consent.
[0096] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.
[0097] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
[0098] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102.
[0099] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.
[0100] In some embodiments, network device 102 includes, but is not limited to, at least one of access network device 102-1 and core network device 102-2.
[0101] In some embodiments, the access network device 102-1 is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: an evolved Node B (eNB), a next-generation eNB (ng-eNB), a next-generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.
[0102] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.
[0103] In some embodiments, the access network device 102-1 may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. By adopting the CU-DU structure, the protocol layer of the access network device can be separated. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only possibility.
[0104] In some embodiments, the core network device 102-2 may be a single device comprising multiple network elements, or it may be multiple devices or a group of devices, each comprising some or all of the multiple network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
[0105] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.
[0106] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.
[0107] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).
[0108] In some embodiments, the candidate configurations provided by the network device to the terminal may be candidate cell configurations or candidate cell group configurations. The network device can subsequently control the terminal to change among multiple candidate configurations via Layer 1 (L1) signaling or Layer 2 (L2) signaling. For example, the working cell (or cell group) can be changed from "Cell-1 (or Cell Group-1)" to "Cell-2 (or Cell Group-2)". The aforementioned control signaling can be referred to as cell change control signaling.
[0109] Among them, Layer 1 control signaling can be Downlink Control Information (DCI), and Layer 2 control signaling can be Media Access Control-Control Element (MAC CE).
[0110] The above process can also be referred to as L1 / L2-triggered Mobility (LTM) process.
[0111] This control process can help network devices select from multiple candidate configurations by configuring the L1 measurement reporting process, such as configuring Channel State Information (CSI) reports.
[0112] In some embodiments, the network device can configure specific measurement events for the terminal. When the terminal satisfies the specific measurement event, it will report the measurement result to the network device. In this disclosure embodiment, the measurement event can be simply referred to as an event, and these events include, but are not limited to, at least one of the following:
[0113] Event A1: The signal quality of the serving cell (or group of serving cells) is better than the threshold.
[0114] Event A2: The signal quality of the serving cell (or group of serving cells) is below the threshold.
[0115] Event A3: The signal quality of a neighboring cell (or neighboring cell group) is better than that of the primary cell (PCell) and / or the primary secondary cell (PSCell) by a certain value.
[0116] Event A4: The signal quality of the neighboring cell (or neighboring cell group) is better than the threshold.
[0117] Event A5: The signal quality of PCell and / or PSCell is below threshold #1, and the signal quality of neighboring cells (or neighboring cell groups) is better than threshold #2.
[0118] Event A6: The signal quality of a neighboring cell (or neighboring cell group) is better than that of the secondary cell (SCell) by a certain value.
[0119] When evaluating a measurement event, the terminal will determine whether to report the measurement based on the "Entering Condition" and / or "Leaving Condition".
[0120] For example, for "Event A3", when the terminal's cell measurement result meets the duration of the "Entering Condition" of "Event A3", that is, when the trigger time (timeToTrigger, TTT) reaches the network-configured threshold, the terminal triggers measurement reporting. When the terminal's cell measurement result meets the duration of the "Leaving Condition" of "Event A3", that is, when the TTT reaches the network-configured threshold, the terminal cancels measurement reporting, for example, by removing the measurement result to be reported.
[0121] In some embodiments, the Multiple Transmit / Receive Point (mTRP) is described as follows:
[0122] Network devices can be configured to have multiple Transmission Configuration Indicator (TRP) states for a terminal's serving cell. In this case, the network device can activate up to 8 Transmission Configuration Indicator-states (TCI-states) for the terminal via MAC CE. The network device can then indicate the TCI-state used by the terminal via DCI. A single DCI can indicate a maximum of 2 TCI-states that the terminal can use simultaneously.
[0123] In some embodiments, the current dual connectivity (DC) architecture includes two cell groups:
[0124] Master Cell Group (MCG): Corresponds to the network-side master node (MN);
[0125] Secondary Cell Group (SCG): corresponds to the secondary node (SN) on the network side.
[0126] The MCG consists of one PCell and one or more SCells. The SCG consists of one Primary Secondary Cell (PSCell) and one or more SCells. The PCell and PSCell can be collectively referred to as Special Cells (SpCells).
[0127] It is understandable that the term "residential area" mentioned above can also refer to "residential area group".
[0128] In some embodiments, a terminal may perform a mobility procedure based on network "pre-configured conditions" and the corresponding "pre-configured cell or cell group," also known as a "condition-triggered mobility procedure." For example, when the terminal meets the "pre-configured conditions," such as meeting a specific measurement event, the terminal changes its serving cell (or serving cell group) to the "pre-configured cell or cell group." This "condition-triggered mobility procedure" includes at least one of the following:
[0129] Conditional Handover (CHO);
[0130] Conditional PSCell Addition (CPA);
[0131] Conditional PSCell Change (CPC).
[0132] The terminal can also change the configuration of a specific cell or a specific cell group after the "pre-configured conditions" are met, according to network instructions. For example, the terminal's PCell configuration can be changed from candidate cell configuration-1 (or candidate cell group configuration-1) to candidate cell configuration-2 (or candidate cell group configuration-2).
[0133] Furthermore, network devices can also configure corresponding "pre-configured conditions" for the "LTM candidate configuration". When the terminal meets the "pre-configured conditions", for example, a specific measurement event, the terminal changes the serving cell configuration (or serving cell group configuration) to the "LTM candidate configuration". This type of "condition-triggered mobility procedure" can be called Conditional LTM (C-LTM).
[0134] In some embodiments, for LTM or L1 measurement events, such as Event A2, Event A3, and Event A5 mentioned above, the terminal needs to use the serving beam of the serving cell for event evaluation. This serving beam is either the beam indicated in the DCI or the beam activated by the MAC CE. However, when the terminal is configured with mTRP, the MAC CE can activate a maximum of 8 beams (i.e., 8 TCI-states), and the DCI can also indicate the simultaneous use of a maximum of 2 beams (i.e., 2 TCI-states). Therefore, within the TTT timeframe, the terminal needs to determine whether the measurement event is satisfied.
[0135] To reduce measurement reporting in multi-beam environments and improve the reliability of mobility processes, as well as reduce ping-pong handover, this disclosure provides the following beam evaluation methods, terminals, network devices, systems, and storage media.
[0136] Figure 2 is an interactive schematic diagram of a beam evaluation method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a beam evaluation method, which includes:
[0137] In step S2101, network device 102 sends measurement reporting configuration to terminal 101.
[0138] In some embodiments, terminal 101 receives measurement reporting configuration.
[0139] In some embodiments, the measurement reporting configuration is used to configure terminal 101 to perform signal measurements and report the measurement results.
[0140] In one example, the measurement reporting configuration could be an L1 measurement reporting configuration.
[0141] In one example, the measurement reporting configuration may include, but is not limited to, measurement event configuration.
[0142] The measurement event configuration is used to configure the measurement events that the terminal 101 needs to evaluate.
[0143] For example, the measurement event may include, but is not limited to, at least one of event A1, event A2, event A3, event A4, event A5, and event A6.
[0144] Event A1 refers to the signal quality of the serving cell being better than the threshold value.
[0145] Event A2 refers to the signal quality of the serving cell being lower than the threshold value.
[0146] Event A3 refers to a situation where the signal quality of a neighboring cell is better than that of PCell and / or PSCel, and the signal quality reaches a certain value.
[0147] Event A4 refers to a neighboring cell whose signal quality is better than the threshold value.
[0148] Event A5 refers to a situation where the signal quality of PCell and / or PSCell is lower than threshold #1, and the signal quality of neighboring cells (or cell groups) is better than threshold #2.
[0149] Event A6 refers to a situation where the signal quality of a neighboring cell is better than that of SCell, reaching a certain value.
[0150] It is understandable that the term "residential community" in this publication can be interchanged with "residential community group".
[0151] In one example, the measurement event configuration can be used to configure at least one of the following:
[0152] The duration of the first time period; the first value; where the first value is the threshold value of the first count; the second value; the signal being measured.
[0153] For example, the duration of the first time period can refer to TTT, which can refer to the duration used to trigger or cancel measurement reporting.
[0154] For example, the first value is a threshold value for the first count, and the first count is the number of times the signal quality of the first beam satisfies the measurement event within the first time period.
[0155] The first value can be any of the measurements taken within the first time period, or it can be a value configured by the network, or it can be a value determined by a predefined method, such as a value agreed upon by a protocol. This disclosure does not limit the value in this respect.
[0156] For example, the second value is a signal threshold value. The second value can be a threshold value corresponding to all measurements within the first time period, or it can be a value configured by the network, or it can be a value determined based on a predefined method, such as a value agreed upon by a protocol; this disclosure does not limit this.
[0157] For example, the measured signal may include, but is not limited to, the reference signal that the terminal 101 needs to measure, including at least one of the following: Channel State Information-Reference Signal (CSI-RS); Synchronization Signal / PBCH Block (SSB).
[0158] Among them, network device 102 can indicate the CSI-RS that terminal 101 needs to measure through CSI-RS identification.
[0159] Among them, network device 102 can indicate the SSB that terminal 101 needs to measure through SSB identifier.
[0160] For example, terminal 101 determines at least one of TTT, a first value, a second value, and the measured signal based on the measurement event configuration.
[0161] In some embodiments, after the terminal 101 accesses the network, the network device 102 sends the measurement reporting configuration to the terminal 101.
[0162] In some embodiments, network device 102 sends the measurement reporting configuration to terminal 101 based on a request from terminal 101.
[0163] In some embodiments, when the network device 102 needs to perform mobility management on the terminal 101, it sends the measurement reporting configuration to the terminal 101.
[0164] This disclosure does not limit the conditions or timing for triggering network device 102 to send measurement reporting configuration to terminal 101.
[0165] In step S2102, there are multiple first beams. Terminal 101 measures the signal on each of the first beams in the first time period and determines the measurement result.
[0166] In some embodiments, the first beam is a beam available to terminal 101.
[0167] In one example, the first beam is the beam activated by network device 102 through the Media Access Control-Control Element (MAC CE).
[0168] For example, the MAC CE can be used to indicate multiple TCI-states, thereby activating the corresponding beam.
[0169] For example, the MAC CE can activate multiple TCI-states, such as eight TCI-states.
[0170] In some embodiments, the first beam may be the beam actually used by the terminal 101.
[0171] In one example, the first beam is the beam indicated by network device 102 via DCI.
[0172] For example, a TCI status code in DCI can indicate multiple TCI-states used by terminal 101, such as two TCI-states.
[0173] In some embodiments, the first beam may be a beam available to or used by the terminal 101 in a special cell (SpCell).
[0174] In one example, for a measurement event of MCG, the SpCell could be a PCell.
[0175] In one example, for a measurement event of SCG, the SpCell could be a PSCell.
[0176] In some embodiments, the name of the first beam is not limited and may be interchanged with the service beam, available beam, or used beam.
[0177] In some embodiments, terminal 101 determines the duration of a first time period based on the measurement reporting configuration, i.e., determines TTT, and measures the signal value on each of the first beams within the first time period to determine the measurement result.
[0178] In one example, the signal values measured by terminal 101 may include, but are not limited to, at least one of the following: Reference Signal Receiving Power (RSRP); Reference Signal Receiving Quality (RSRQ); Signal to Interference and Noise Ratio (SINR).
[0179] For example, terminal 101 measures L1 signal values, such as at least one of L1-RSRP, L1-RSRQ, and L1-SINR.
[0180] In one example, the measurement results may include the measured signal values on each first beam, such as the L1-RSRP on each beam.
[0181] In step S2103, terminal 101 determines the evaluation result.
[0182] In some embodiments, terminal 101 may evaluate the measurement event based on the above measurement results to obtain the evaluation result. The evaluation result may be used to indicate whether the measurement event is satisfied.
[0183] In one example, satisfying a measurement event may include satisfying an entry condition for the measurement event. An entry condition refers to a condition used to trigger or execute the measurement event.
[0184] For example, the entry condition for a measurement event can be that the measured signal value on the first beam is greater than or equal to a signal threshold value corresponding to the entry condition, such as a second value. It is understood that if the entry condition is met, terminal 101 will report the measurement.
[0185] In one example, satisfying a measurement event may include satisfying a departure condition for the measurement event. The departure condition is a condition used to cancel or terminate the measurement event. It is understood that, upon satisfying a departure condition, terminal 101 will stop or cancel measurement reporting.
[0186] For example, the entry condition for a measurement event can be that the measured signal value on the first beam is greater than or equal to the signal threshold value corresponding to the exit condition, such as a second value.
[0187] In some embodiments, terminal 101 may determine the evaluation result using any of the following methods:
[0188] Method 1: Determine the evaluation result based on the measured signal value on any of the first beams.
[0189] Method 1-1: During the first time period, the evaluation result is determined based on the measured signal value on any of the first beams.
[0190] Taking event A3 as an example, the measurement event includes satisfying the entry condition of event A3.
[0191] For example, as shown in Figure 4A, the first beam includes TCI state #1 and TCI state #2. During the TTT, terminal 101 measures the RSRP values of TCI state #1 and TCI state #2. The RSRP value of TCI state #1 measured by terminal 101 during the TTT always satisfies the entry condition of event A3, for example, it is greater than or equal to the second value. The RSRP value of TCI state #2 measured during the TTT does not satisfy the entry condition of event A3. Then terminal 101 can determine that the evaluation result satisfies event A3.
[0192] Method 1-2: Determine the evaluation result based on the first number corresponding to any of the first beams.
[0193] Wherein, the first number is the number of times the signal value on the first beam measured within the first time period satisfies the measurement event.
[0194] Taking event A3 as an example, the measurement event includes satisfying the entry condition of event A3.
[0195] For example, as shown in Figure 4B, the first beam includes TCI state #1 and TCI state #2, with a first value of 3. During the first time period (i.e., within TTT), the terminal 101 measures the signal value of TCI state #1, for example, RSRP value #1, to satisfy the event A3 for the first time 4 times, that is, the RSRP value #1 is greater than or equal to the second value for the first time 4 times. The terminal 101 measures the signal value of TCI state #2, for example, RSRP value #2, to satisfy the event A3 for the first time 2 times. Then, the terminal 101 determines that the event A3 is satisfied.
[0196] Method 2: Determine the evaluation result based on the measured signal values on each first beam.
[0197] Method 2-1: During the first time period, the evaluation result is determined based on the measured signal values on each first beam.
[0198] Taking event A2 as an example, the measurement event includes satisfying the departure condition of event A2.
[0199] For example, as shown in Figure 4C, the first beam includes TCI state #1 and TCI state #2. During the first time period (i.e., within TTT), the terminal 101 measures that the signal value on TCI state #1, such as RSRP value #1, satisfies the departure condition of event A2. The signal value on TCI state #2, such as RSRP value #2, also satisfies the departure condition of event A2. The terminal 101 determines that event A2 is satisfied.
[0200] Method 2-2: Determine the evaluation result based on the first number corresponding to each of the first beams.
[0201] Wherein, the first number is the number of times the signal quality of the first beam satisfies the measurement event within the first time period.
[0202] Taking event A2 as an example, the measurement event includes satisfying the departure condition of event A2.
[0203] For example, as shown in Figure 4D, the first beam includes TCI state #1 and TCI state #2, with a first value of 3. During the first time period (i.e., within TTT), the terminal 101 measures the signal value on TCI state #1, for example, RSRP value #1, to satisfy the departure condition of event A2 for the first time 4 times. For example, the RSRP value #1 is greater than or equal to the second value for the first time 4 times. The measured signal value on TCI state #2, for example, RSRP value #2, to satisfy the departure condition of event A2 for the first time 3 times. Then, the terminal 101 determines that event A2 is satisfied.
[0204] The above is merely an illustrative example. This disclosure does not limit the scheme by which the terminal 101 determines the evaluation result based on the measurement results of each first beam.
[0205] In step S2104, terminal 101 reports the measurement results to network device 102.
[0206] In some embodiments, network device 102 receives measurement results.
[0207] In some embodiments, if the evaluation result meets the entry conditions for a measurement event, the terminal 101 reports the measurement result to the network device 102.
[0208] In some embodiments, if the evaluation result indicates that the departure condition of the measurement event is not met, the terminal 101 reports the measurement result to the network device 102.
[0209] In some embodiments, if the evaluation result indicates that the entry conditions for the measurement event are not met, the terminal 101 stops measurement reporting.
[0210] In some embodiments, terminal 101 sends a measurement report to network device 102, which includes the measurement results.
[0211] In some embodiments, if the evaluation result meets the departure condition of the measurement event, the terminal 101 stops measurement reporting.
[0212] In some embodiments, step S2104 is an optional step. For example, if terminal 101 stops measurement reporting based on the evaluation results, step S2104 may not be executed.
[0213] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.
[0214] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.
[0215] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.
[0216] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.
[0217] In some embodiments, the beam evaluation method involved in the present disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2100+S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2101+S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2103+S2104 may be implemented as an independent embodiment, and steps S2101 to S2104 may be implemented as independent embodiments, but are not limited thereto.
[0218] In some embodiments, steps S2101 to S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0219] In some embodiments, the execution order of steps S2101 to S2104 is not limited.
[0220] In the above embodiments, the number of times the terminal performs measurement reporting in multi-beam scenarios is reduced, the reliability of mobility management is improved, the possibility of ping-pong handover is reduced, and availability is high.
[0221] Figure 3A is a flowchart illustrating a beam evaluation method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to a beam evaluation method, which can be executed by terminal 101 and includes the following steps:
[0222] Step S3101: Determine the measurement result.
[0223] In some embodiments, step S3101 may refer to steps in other embodiments described before or after this embodiment, such as step S2102 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0224] Step S3102: Determine the evaluation results.
[0225] In some embodiments, step S3102 may refer to steps in other embodiments described before or after this embodiment, such as step S2103 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0226] In some embodiments, steps S3101 to S3102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0227] In some embodiments, the execution order of steps S3101 to S3102 is not limited.
[0228] In the above embodiments, the number of times the terminal performs measurement reporting in multi-beam scenarios is reduced, the reliability of mobility management is improved, the possibility of ping-pong handover is reduced, and availability is high.
[0229] Figure 3B is a flowchart illustrating a beam evaluation method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to a beam evaluation method, which can be executed by terminal 101 and includes the following steps:
[0230] Step S3201: Obtain measurement reporting configuration.
[0231] In some embodiments, terminal 101 receives measurement reporting configuration sent by network device 102, but is not limited thereto. Terminal 101 may also receive measurement reporting configuration sent by other entities, such as relay devices or other terminals. In this case, step S3201 can be omitted.
[0232] In some embodiments, terminal 101 obtains the measurement reporting configuration specified by the protocol, in which step S3201 is omitted.
[0233] In some embodiments, terminal 101 obtains the measurement reporting configuration from the upper layer(s), in which case step S3201 is omitted.
[0234] In some embodiments, the terminal 101 processes the data to obtain the measurement reporting configuration, in which step S3201 is omitted.
[0235] In some embodiments, the terminal 101 autonomously implements the functions indicated by the measurement reporting configuration, or the above functions are default or default, in which case step S3201 is omitted.
[0236] In some embodiments, reference can be made to the steps in other embodiments described before or after this embodiment, such as step S2101 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0237] Step S3202: Determine the measurement result.
[0238] In some embodiments, step S3202 may refer to steps in other embodiments described before or after this embodiment, such as step S2102 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0239] Step S3203: Determine the evaluation results.
[0240] In some embodiments, step S3203 may refer to steps in other embodiments described before or after this embodiment, such as step S2103 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0241] Step S3204: Report the measurement results.
[0242] In some embodiments, terminal 101 reports measurement results to network device 102.
[0243] In some embodiments, network device 102 receives measurement results.
[0244] In some embodiments, step S3204 may refer to steps in other embodiments described before or after this embodiment, such as step S2104 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0245] In some embodiments, steps S3201 to S3204 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0246] In some embodiments, the execution order of steps S3201 to S3204 is not limited.
[0247] In the above embodiments, the terminal can perform measurements and evaluations based on the measurement reporting configuration so as to report the measurement results to the network device. This reduces the number of times the terminal performs measurement reporting in multi-beam scenarios, improves the reliability of mobility management, reduces the possibility of ping-pong handover, and has high availability.
[0248] Figure 3C is a flowchart illustrating a beam evaluation method according to an embodiment of the present disclosure. As shown in Figure 3C, this disclosure relates to a beam evaluation method, which can be executed by network device 102, and includes the following steps:
[0249] Step S3301: Send measurement reporting configuration.
[0250] In some embodiments, network device 102 sends measurement reporting configuration to terminal 101.
[0251] In some embodiments, terminal 101 receives measurement reporting configuration.
[0252] In some embodiments, step S3301 may refer to steps in other embodiments described before or after this embodiment, such as step S2101 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0253] In the above embodiments, the network device can provide measurement reporting configuration for the terminal, which improves the reliability of the measurement and evaluation process, reduces the number of times the terminal performs measurement reporting in multi-beam scenarios, improves the reliability of mobility management, reduces the possibility of ping-pong handover, and has high availability.
[0254] Figure 3D is a flowchart illustrating a beam evaluation method according to an embodiment of the present disclosure. As shown in Figure 3D, the present disclosure relates to a beam evaluation method, which can be executed by network device 102, and includes the following steps:
[0255] Step S3401: Send measurement reporting configuration.
[0256] In some embodiments, network device 102 sends measurement reporting configuration to terminal 101.
[0257] In some embodiments, terminal 101 receives measurement reporting configuration.
[0258] In some embodiments, step S3401 may refer to steps in other embodiments described before or after this embodiment, such as step S2101 in FIG2 and its optional implementation, and other related parts in the specification, which will not be repeated here.
[0259] Step S3402: Obtain the measurement results.
[0260] In some embodiments, network device 102 receives measurement results sent by terminal 101, but is not limited thereto. Network device 102 may also receive measurement results sent by other entities, such as relay devices or other terminals. In this case, step S3402 may be omitted.
[0261] In some embodiments, network device 102 acquires measurement results as specified by the protocol, in which case step S3402 is omitted.
[0262] In some embodiments, the network device 102 obtains measurement results from the upper layer(s), in which case step S3402 is omitted.
[0263] In some embodiments, the network device 102 processes the data to obtain the measurement results, in which case step S3402 is omitted.
[0264] In some embodiments, the network device 102 autonomously implements the function indicated by the measurement results, or the above function is default or default, in which case step S3402 is omitted.
[0265] In some embodiments, reference can be made to the steps in other embodiments described before or after this embodiment, such as step S2104 in FIG2 and its optional implementation, as well as other related parts in the specification, which will not be repeated here.
[0266] In some embodiments, steps S3401 to S3402 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0267] In some embodiments, the execution order of steps S3401 to S3402 is not limited.
[0268] In the above embodiments, the number of times the terminal performs measurement reporting in multi-beam scenarios is reduced, the reliability of mobility management is improved, the possibility of ping-pong handover is reduced, and availability is high.
[0269] The above process is further illustrated with examples below.
[0270] When the number of serving beams of the terminal is greater than 1, during the TTT (Time To Watch) period, the terminal simultaneously uses the measurement results of multiple serving beams to evaluate the measurement event. The method for "simultaneously using the measurement results of multiple serving beams to evaluate the measurement event" includes any of the following:
[0271] Evaluation Method 1: If the measurement signal value of any one serving beam satisfies the measurement event within the TTT time period, the terminal considers the measurement event to be satisfied.
[0272] Evaluation method 1.1: If the measurement signal value of any one serving beam continuously satisfies the measurement event within the TTT time, the terminal considers the measurement event to be satisfied.
[0273] Evaluation method 1.2: During the TTT period, if the number of times the measurement signal value of any one serving beam satisfies the measurement event is greater than or equal to the threshold value configured by the network, then the terminal considers the measurement event to be satisfied.
[0274] Evaluation Method 2: If the measurement signal values of all serving beams meet the measurement event within the TTT time, the terminal considers the measurement event to be met.
[0275] Evaluation method 2.1: If the measurement signal values of all serving beams continuously meet the measurement event within the TTT time, the terminal considers the measurement event to be met.
[0276] Evaluation method 2.2: If the number of times the measurement signal values of all serving beams satisfy the measurement event is greater than or equal to the threshold value configured by the network within the TTT time, then the terminal considers the measurement event to be satisfied.
[0277] Example 1, the method includes the following steps:
[0278] Step 1: The network device provides the terminal with an "L1 measurement reporting configuration". This "L1 measurement reporting configuration" includes a "measurement event configuration" (e.g., L1Event-3). Furthermore, a corresponding "evaluation time" (e.g., TTT, assumed to be 40 milliseconds) is configured for this "measurement event configuration". Additionally, multiple serving beams are configured for the terminal; these serving beams can also be referred to as the current beam.
[0279] The service beam can be indicated by configuring the TCI-state. This TCI-state configuration includes any of the following reference signal configurations:
[0280] SSB configuration (e.g., indicated by SSB identifier);
[0281] CSI-RS configuration (e.g., indicated by CSI-RS identifier).
[0282] The type of the service beam is any one of the following:
[0283] Service beam type 1, a beam activated by MAC CE, for example, a TCI-state indicated by MAC CE.
[0284] Service beam type 2, the beam indicated by DCI, for example, the two TCI-states used are indicated by one TCI-state codepoint in the DCI.
[0285] Step 2: Based on the configuration information in Step 1, when the number of serving beams of the terminal is greater than 1, the terminal uses the measurement results of multiple serving beams simultaneously to evaluate the measurement event during the TTT time.
[0286] The method of "simultaneously using measurement results from multiple serving beams to evaluate measurement events" includes any one of the following:
[0287] Evaluation Method 1: Within the TTT time period, if the measurement signal value of any one serving beam satisfies the measurement event, the terminal considers the measurement event to be satisfied. Further, this measurement event can be defined as the "entry condition corresponding to the measurement event." Further still, Evaluation Method 1 can be defined as applicable to measurement event A3, where the measurement signal value of the candidate cell beam is better than the measurement signal value of the serving cell beam, and better than the offset value.
[0288] Evaluation Method 1.1: During the TTT period, if the measurement signal value of any one serving beam continuously satisfies the measurement event, the terminal considers the measurement event satisfied. For example, as shown in Figure 4A, the network device indicates to the terminal via DCI that the currently available beams are TCI-state-1 and TCI-state-2. During the TTT period, the RSRP value of TCI-state-1 consistently satisfies the "entry condition corresponding to the measurement event," while the RSRP value of TCI-state-2 does not consistently satisfy the "entry condition corresponding to the measurement event." Therefore, the terminal considers the measurement event satisfied and triggers measurement reporting.
[0289] Evaluation method 1.2: During the TTT (Time To Watch) period, if the number of times the measurement signal value of any one serving beam satisfies the measurement event is greater than or equal to the network-configured threshold, the terminal considers the measurement event satisfied. For example, as shown in Figure 4B, the network device indicates to the terminal via DCI that the currently available beams are TCI-state-1 and TCI-state-2. The network configuration triggers measurement reporting if four measurement events are satisfied within the TTT period. During the TTT period, if the RSRP value of TCI-state-1 satisfies the "entry condition corresponding to the measurement event" four times, and the RSRP value of TCI-state-2 satisfies the "entry condition corresponding to the measurement event" twice, the terminal considers the measurement event satisfied and triggers measurement reporting.
[0290] Evaluation Method 2: If the measured signal values of all serving beams meet the measurement event within the TTT time period, the terminal considers the measurement event to be satisfied. Further, this measurement event can be defined as the "leaving condition corresponding to the measurement event." Further still, Evaluation Method 2 can be limited to measurement event A2 (the measured signal value of the serving cell beam is less than a threshold value) or event A5 (the measured signal value of the serving cell beam is less than a threshold value, and the measured signal value of the candidate cell beam is greater than a threshold value).
[0291] Evaluation method 2.1: If the measurement signal values of all serving beams continuously meet the measurement event within the TTT time, the terminal considers the measurement event to be met.
[0292] As shown in Figure 4C, the network device uses DCI to indicate to the terminal that the currently available beams are TCI-state-1 and TCI-state-2. During the TTT (Time To Trial) period, if the RSRP value of TCI-state-1 consistently meets the "departure condition corresponding to the measurement event," and the RSRP value of TCI-state-2 consistently meets the "departure condition corresponding to the measurement event," then the terminal considers the departure condition for the measurement event met and stops measurement reporting.
[0293] Evaluation method 2.2: If the number of times the measurement signal values of all serving beams satisfy the measurement event is greater than or equal to the threshold value configured by the network within the TTT time, then the terminal considers the measurement event to be satisfied.
[0294] As shown in Figure 4D, the network device uses DCI to indicate to the terminal that the currently available beams are TCI-state-1 and TCI-state-2. The network configuration triggers measurement reporting if three measurement events are met within the TTT period. Within the TTT period, if the RSRP value of TCI-state-1 meets the "departure condition corresponding to the measurement event" four times, and the RSRP value of TCI-state-2 meets the "entry condition corresponding to the measurement event" three times, the terminal considers the departure condition for that measurement event met and stops measurement reporting.
[0295] Furthermore, this "service beam" can be a service beam for SpCell. The type of this "SpCell service beam" includes any of the following:
[0296] For the measurement event corresponding to MCG, the SpCell is a PCell;
[0297] For the measurement event corresponding to SCG, the SpCell is a PSCell.
[0298] The measured signal value mentioned above includes any one of the following:
[0299] L1-RSRP;
[0300] L1-RSRQ;
[0301] L1-SINR.
[0302] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.
[0303] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.
[0304] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).
[0305] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. The terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, the terminal 5100 may include a processing module 5101.
[0306] In some embodiments, the processing module 5101 is used to measure the signal on each of the first beams within a first time period, and determine the measurement result; wherein the first beam is a beam available to the terminal or a beam used by the terminal; based on the measurement result, the measurement event is evaluated and the evaluation result is determined; wherein the evaluation result is used to indicate whether the measurement event is satisfied.
[0307] Optionally, the processing module 5101 is used to execute at least one of the other steps (such as step S2102, step S2103, but not limited thereto) executed by the terminal 5100 in any of the above methods, which will not be described in detail here.
[0308] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the network device 5200 may include a transceiver module 5201.
[0309] In some embodiments, the transceiver module 5201 is used to send measurement reporting configuration to the terminal when there are multiple first beams; wherein the measurement reporting configuration includes measurement event configuration; wherein the first beam is a beam available to the terminal or a beam used by the terminal.
[0310] Optionally, the transceiver module 5201 is used to perform at least one of the communication steps (such as step S2101, step S2104, but not limited thereto) performed by the network device 5200 in any of the above methods, which will not be described in detail here.
[0311] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.
[0312] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.
[0313] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can be interchanged with the transceiver.
[0314] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.
[0315] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.
[0316] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2104, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., steps S2102, S2103, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.
[0317] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103 and can be used to receive data and / or instructions from the memory 6103 or other devices, and can be used to send data and / or instructions to the memory 6103 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6103 and send the data and / or instructions to the processor 6101.
[0318] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.
[0319] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.
[0320] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.
[0321] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.
[0322] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., steps S2101, S2104, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps S2102, S2103, but not limited thereto).
[0323] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.
[0324] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.
[0325] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.
[0326] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
[0327] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0328] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. A beam evaluation method, characterized in that, The method is executed by a terminal, and the method includes: There are multiple first beams. The signal on each first beam is measured during a first time period to determine the measurement result. The first beam is a beam available to the terminal or a beam used by the terminal. Based on the measurement results, the measurement event is evaluated, and an evaluation result is determined; wherein, the evaluation result is used to indicate whether the measurement event is satisfied.
2. The method according to claim 1, characterized in that, The evaluation of the measurement event based on the measurement results, and the determination of the evaluation result, includes at least one of the following: If the measured signal value on any of the first beams during the first time period satisfies the measurement event, the evaluation result is determined to satisfy the measurement event. If the first number corresponding to any of the first beams is greater than or equal to the first value, the evaluation result is determined to satisfy the measurement event; wherein, the first number is the number of times the signal value on the first beam measured within the first time period satisfies the measurement event.
3. The method according to claim 1, characterized in that, The evaluation of the measurement event based on the measurement results, and the determination of the evaluation result, includes at least one of the following: If the measured signal value on each of the first beams during the first time period satisfies the measurement event, the evaluation result is determined to satisfy the measurement event. If the first number corresponding to each first beam is greater than or equal to the first value, the evaluation result is determined to satisfy the measurement event; wherein, the first number is the number of times the signal value on the first beam measured within the first time period satisfies the measurement event.
4. The method according to any one of claims 1-3, characterized in that, The measurement event is satisfied, including any of the following: The entry condition for the measurement event is met; wherein, the entry condition is a condition used to trigger the measurement event; The departure condition of the measurement event is met; wherein the departure condition is a condition used to cancel the measurement event.
5. The method according to claim 4, characterized in that, The method further includes any one of the following: If the evaluation result meets the entry conditions for the measurement event, the measurement result is reported to the network device. If the evaluation result indicates that the entry conditions for the measurement event are not met, measurement reporting will be stopped. If the evaluation result meets the departure conditions of the measurement event, the measurement reporting will be stopped. If the evaluation result indicates that the departure conditions of the measurement event are not met, the measurement result is reported to the network device.
6. The method according to any one of claims 1-5, characterized in that, The method further includes: Receive measurement reporting configuration sent by network devices; wherein the measurement reporting configuration includes measurement event configuration.
7. The method according to claim 6, characterized in that, The measurement event configuration is used to configure at least one of the following: Duration of the first session; First value; wherein, the first value is the threshold value for the first count, and the first count is the number of times the signal quality of the first beam satisfies the measurement event within the first time period; The second value; where the second value is the signal threshold value; The measured signal.
8. The method according to claim 7, characterized in that, The signal includes at least one of the following: Synchronization Signal Block (SSB); Channel State Information Reference Signal (CSI-RS) 9. The method according to any one of claims 1-8, characterized in that, The method further includes at least one of the following: The first beam is determined based on the Media Access Control Unit (MAC CE) sent by the network device; wherein the MAC CE is used to activate the beam available to the terminal. The first beam is determined based on the downlink control information (DCI) sent by the network device; wherein the DCI is used to indicate the beam used by the terminal.
10. A beam evaluation method, characterized in that, The method is performed by a network device, and the method includes: The first beam consists of multiple beams that send measurement reporting configurations to the terminal; wherein the measurement reporting configurations include measurement event configurations; and wherein the first beam is a beam available to the terminal or a beam used by the terminal.
11. The method according to claim 10, characterized in that, The measurement event configuration is used to configure at least one of the following: Duration of the first session; First value; wherein, the first value is the threshold value corresponding to the first count, and the first count is the number of times the signal quality of the first beam satisfies the measurement event within the first time period; The second value; where the second value is the signal threshold value; The measured signal.
12. The method according to claim 11, characterized in that, The signal includes at least one of the following: Synchronization Signal Block (SSB); Channel State Information Reference Signal (CSI-RS) 13. The method according to any one of claims 10-12, characterized in that, The method further includes at least one of the following: Send a Media Access Control Unit (MAC CE) to the terminal; wherein the MAC CE is used to activate the beams available to the terminal; Send downlink control information (DCI) to the terminal; wherein the DCI is used to indicate the beam used by the terminal.
14. The method according to any one of claims 10-13, characterized in that, The method further includes at least one of the following: The system receives the measurement result reported by the terminal when the evaluation result meets the entry conditions for the measurement event; wherein the entry conditions are conditions used to trigger the measurement event. The terminal receives the measurement result reported when the evaluation result does not meet the departure condition of the measurement event; wherein the departure condition is a condition used to cancel the measurement event.
15. A terminal, characterized in that, include: There are multiple first beams. The signal on each first beam is measured during a first time period to determine the measurement result. The first beam is a beam available to the terminal or a beam used by the terminal. Based on the measurement results, the measurement event is evaluated, and an evaluation result is determined; wherein, the evaluation result is used to indicate whether the measurement event is satisfied.
16. A network device, characterized in that, include: The first beam consists of multiple beams that send measurement reporting configurations to the terminal; wherein the measurement reporting configurations include measurement event configurations; and wherein the first beam is a beam available to the terminal or a beam used by the terminal.
17. A terminal, characterized in that, include: One or more processors; The processor is used to execute the method according to any one of claims 1-9.
18. A network device, characterized in that, include: One or more processors; The processor is used to execute the beam evaluation method according to any one of claims 10-14.
19. A communication system, characterized in that, include: A terminal, configured to implement the beam evaluation method according to any one of claims 1-9; A network device configured to implement the beam evaluation method according to any one of claims 10-14.
20. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the beam evaluation method as described in any one of claims 1-9 or 10-14.
21. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program is used to implement the beam evaluation method according to any one of claims 1-9 or 10-14.