Beam determination method and apparatus, and terminal, network device and storage medium
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2024-12-25
- Publication Date
- 2026-07-02
Smart Images
Figure CN2024142494_02072026_PF_FP_ABST
Abstract
Description
Beamforming methods and apparatus, terminals, network equipment and storage media Technical Field
[0001] This disclosure relates to the field of communication technology, and more specifically, to beamforming methods, beamforming devices, terminals, network equipment, communication systems, and storage media. Background Technology
[0002] To improve communication efficiency, the mTRP (Multiple Transmit / Receive Point) technology was proposed. Network devices can be configured to have multiple TRPs in a serving cell of a terminal, and the terminal can communicate with the terminal through multiple TRPs in that serving cell.
[0003] In mTRP scenarios, network devices may configure multiple beams for terminals, which can cause problems in some communication processes. Summary of the Invention
[0004] The embodiments of this disclosure provide beam determination methods and apparatus, terminals, network devices, and storage media to address technical problems in the related art.
[0005] According to a first aspect of the present disclosure, a beam determination method is proposed, executed by a terminal, the method comprising: determining a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules, or receiving indication information sent by a network device and determining the first beam for measuring the evaluation of reported events among the plurality of service beams according to the indication information.
[0006] According to a second aspect of the present disclosure, a beam determination method is provided, executed by a network device, the method comprising: determining a first beam for measuring and reporting event evaluation among a plurality of service beams according to predefined rules, or sending indication information to a terminal, the indication information being used to instruct the terminal to determine the first beam for measuring and reporting event evaluation among the plurality of service beams.
[0007] According to a third aspect of the present disclosure, a beam determination apparatus is provided, the apparatus comprising: a processing module configured to determine a first beam for measuring and reporting event evaluation among a plurality of serving beams according to predefined rules; or a receiving module configured to receive indication information sent by a network device, the processing module being configured to determine the first beam for measuring and reporting event evaluation among the plurality of serving beams according to the indication information.
[0008] According to a fourth aspect of the present disclosure, a beam determination apparatus is provided, the apparatus comprising: a processing module configured to determine a first beam for measuring and reporting event evaluation among a plurality of serving beams according to predefined rules, or a sending module configured to send indication information to a terminal, the indication information being used to instruct the terminal to determine the first beam for measuring and reporting event evaluation among the plurality of serving beams.
[0009] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform the beam determination method described in the first aspect.
[0010] According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the beam determination method described in the second aspect.
[0011] According to a seventh aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the beam determination method of the first aspect, and the network device is configured to implement the beam determination method of the second aspect.
[0012] 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 the beam determination method described in any one of the first and second aspects.
[0013] According to a ninth aspect of the present disclosure, a program product is provided that, when executed by a communication device, causes the communication device to perform the beam determination method described in any one of the first and second aspects.
[0014] According to embodiments of this disclosure, when a terminal communicates based on multiple service beams, it can indicate a first beam for measuring and evaluating reported events among the multiple service beams based on indication information from the network device. Alternatively, the terminal and the network device can indicate the first beam for measuring and evaluating reported events among the multiple service beams according to predefined rules. This facilitates ensuring that the terminal and the network device have a consistent understanding of the beam used for measuring and evaluating reported events, and that both can determine that the first beam is used for measuring and evaluating reported events. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
[0017] Figure 2 is an interactive schematic diagram of a beam determination method according to an embodiment of the present disclosure.
[0018] Figure 3 is a schematic block diagram of a beam determination device according to an embodiment of the present disclosure.
[0019] Figure 4 is a schematic block diagram of a beam determination device according to an embodiment of the present disclosure.
[0020] Figure 5A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.
[0021] Figure 5B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation
[0022] Embodiments of this disclosure provide a beamforming method and apparatus, a terminal, a network device, and a storage medium.
[0023] In a first aspect, embodiments of this disclosure propose a beam determination method, executed by a terminal, the method comprising: determining a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules, or receiving indication information sent by a network device and determining the first beam for measuring the evaluation of reported events among the plurality of service beams according to the indication information.
[0024] In the above embodiments, when the terminal communicates based on multiple service beams, it can indicate the first beam for measuring and reporting event evaluation among the multiple service beams according to the indication information of the network device. Alternatively, the terminal and the network device can indicate the first beam for measuring and reporting event evaluation among the multiple service beams according to predefined rules. This helps ensure that the terminal and the network device have a consistent understanding of the beam used for measuring and reporting event evaluation, and that both can determine that the first beam is used for measuring and reporting event evaluation.
[0025] In conjunction with some embodiments of the first aspect, in some embodiments, the predefined rule includes at least one of the following: randomly selecting a beam from the plurality of serving beams as the first beam; selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams; selecting the first beam from the plurality of serving beams based on a related index sorting of the plurality of serving beams; and selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams.
[0026] In conjunction with some embodiments of the first aspect, in some embodiments, selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams includes one of the following: selecting the beam corresponding to the largest reference signal measurement value from the plurality of serving beams as the first beam; or selecting the beam corresponding to the smallest reference signal measurement value from the plurality of serving beams as the first beam.
[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the reference signal measurement includes at least one of the following: reference signal received power (RSRP); reference signal received quality (RSRQ); and signal-to-interference-plus-noise ratio (SINR).
[0028] In conjunction with some embodiments of the first aspect, in some embodiments, selecting the first beam from the plurality of service beams according to the relevant index sorting of the plurality of service beams includes one of the following: selecting the beam with the highest relevant index sorting among the plurality of service beams as the first beam; or selecting the beam with the lowest relevant index sorting among the plurality of service beams as the first beam.
[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the beam-related index includes at least one of the following: an index of the Transmission Configuration Indication State (TCI-state); an index of the Synchronization Signal Block (SSB); and an index of the Channel State Information Reference Signal (CSI-RS).
[0030] In conjunction with some embodiments of the first aspect, in some embodiments, selecting the first beam from the plurality of serving beams according to the type of the cells corresponding to the plurality of serving beams includes at least one of the following: selecting the serving beam of a specific cell from the plurality of serving beams as the first beam; selecting the serving beam of a primary cell from the plurality of serving beams as the first beam; or selecting the serving beams of a primary and a secondary cell from the plurality of serving beams as the first beam.
[0031] In conjunction with some embodiments of the first aspect, in some embodiments, selecting the service beam of a specific cell as the first beam from the plurality of service beams includes at least one of the following: when the measurement reporting event corresponds to a measurement reporting event of a primary cell group, selecting the service beam of the primary cell as the first beam from the plurality of service beams; when the measurement reporting event corresponds to a measurement reporting event of a secondary cell group, selecting the service beam of the secondary cell as the first beam from the plurality of service beams.
[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving a TCI-state sent by the network device; and determining the plurality of serving beams based on the TCI-state.
[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the types of the plurality of serving beams include at least one of the following: beams activated by the Media Access Control Unit (MAC CE); beams indicated by Downlink Control Information (DCI).
[0034] Secondly, embodiments of this disclosure propose a beam determination method, executed by a network device, the method comprising: determining a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules, or sending indication information to a terminal, the indication information being used to instruct the terminal to determine the first beam for measuring the evaluation of reported events among the plurality of service beams.
[0035] In conjunction with some embodiments of the second aspect, in some embodiments, the predefined rule includes at least one of the following: randomly selecting a beam from the plurality of serving beams as the first beam; selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams; selecting the first beam from the plurality of serving beams based on a related index sorting of the plurality of serving beams; and selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams.
[0036] In conjunction with some embodiments of the second aspect, in some embodiments, selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams includes one of the following: selecting the beam corresponding to the largest reference signal measurement value from the plurality of serving beams as the first beam; or selecting the beam corresponding to the smallest reference signal measurement value from the plurality of serving beams as the first beam.
[0037] In conjunction with some embodiments of the second aspect, in some embodiments, the reference signal measurement includes at least one of the following: reference signal received power (RSRP); reference signal received quality (RSRQ); and signal-to-interference-plus-noise ratio (SINR).
[0038] In conjunction with some embodiments of the second aspect, in some embodiments, selecting the first beam from the plurality of service beams according to the relevant index sorting of the plurality of service beams includes one of the following: selecting the beam with the highest relevant index sorting among the plurality of service beams as the first beam; or selecting the beam with the lowest relevant index sorting among the plurality of service beams as the first beam.
[0039] In conjunction with some embodiments of the second aspect, in some embodiments, the beam-related index includes at least one of the following: an index of the Transmission Configuration Indication State (TCI-state); an index of the Synchronization Signal Block (SSB); and an index of the Channel State Information Reference Signal (CSI-RS).
[0040] In conjunction with some embodiments of the second aspect, in some embodiments, selecting the first beam from the plurality of serving beams according to the type of the cells corresponding to the plurality of serving beams includes at least one of the following: selecting the serving beam of a specific cell from the plurality of serving beams as the first beam; selecting the serving beam of a primary cell from the plurality of serving beams as the first beam; or selecting the serving beams of a primary and secondary cell from the plurality of serving beams as the first beam.
[0041] In conjunction with some embodiments of the second aspect, in some embodiments, selecting the service beam of a specific cell as the first beam from the plurality of service beams includes at least one of the following: when the measurement reporting event corresponds to a measurement reporting event of a primary cell group, selecting the service beam of the primary cell as the first beam from the plurality of service beams; when the measurement reporting event corresponds to a measurement reporting event of a secondary cell group, selecting the service beam of the secondary cell as the first beam from the plurality of service beams.
[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending a TCI-state to the terminal, wherein the TCI-state is used by the terminal to determine the plurality of serving beams.
[0043] In conjunction with some embodiments of the second aspect, in some embodiments, the types of the plurality of serving beams include at least one of the following: beams activated by the Media Access Control Unit (MAC CE); beams indicated by Downlink Control Information (DCI).
[0044] Thirdly, embodiments of this disclosure provide a beam determination apparatus, the apparatus comprising: a processing module configured to determine a first beam for measuring and reporting event evaluation among a plurality of serving beams according to predefined rules; or a receiving module configured to receive indication information sent by a network device, the processing module being configured to determine the first beam for measuring and reporting event evaluation among the plurality of serving beams according to the indication information.
[0045] Fourthly, embodiments of this disclosure provide a beam determination apparatus, the apparatus comprising: a processing module configured to determine a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules; or a sending module configured to send indication information to a terminal, the indication information being used to instruct the terminal to determine the first beam for measuring the evaluation of reported events among the plurality of service beams.
[0046] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the terminal is configured to perform the beam determination method according to any one of the first aspects and optional embodiments thereof.
[0047] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform the beam determination method according to any one of the second aspect and optional embodiments thereof.
[0048] In a seventh aspect, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the beam determination method of any one of the first aspects and optional embodiments of the first aspect, and the network device is configured to implement the beam determination method of any one of the second aspects and optional embodiments of the second aspect.
[0049] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any one of the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect, the beam determination method.
[0050] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform any one of the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect, the beam determination method described in any one of them.
[0051] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the beam determination method described in any one of the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect.
[0052] It is understood that the aforementioned beamforming device, communication equipment, communication system, storage medium, program product, and computer program 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.
[0053] This disclosure provides a beamforming method and apparatus, a terminal, a network device, and a storage medium. In some embodiments, the terms beamforming method, information processing method, and communication method can be used interchangeably; the terms beamforming apparatus, information processing apparatus, and communication apparatus can be used interchangeably; and the terms information processing system and communication system can be used interchangeably.
[0054] 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.
[0055] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.
[0056] 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.
[0057] In the embodiments of this disclosure, unless otherwise stated, elements expressed in the singular, such as “a,” “an,” “the,” “the,” “the,” “the,” “the,” “the,” “this,” etc., may mean “one and only one,” or “one or more,” “at least one,” etc.
[0058] For example, when using articles such as "a", "an", and "the" in translation, the noun following the article can be understood as either a singular or a plural form.
[0059] In the embodiments disclosed herein, "multiple" refers to two or more.
[0060] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.
[0061] 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 B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.
[0062] 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 B); in some embodiments, B (execute B regardless of A); 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, C, etc.
[0063] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.
[0064] For example, if the descriptive object is "field," then 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 "level," then 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; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the descriptive object 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 descriptive object 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.
[0065] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0066] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.
[0067] 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”.
[0068] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
[0069] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).
[0070] 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.
[0071] 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.
[0072] 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.
[0073] 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.
[0074] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.
[0075] In some embodiments, data, information, etc., may be obtained with the user's consent.
[0076] 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.
[0077] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
[0078] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102, wherein the network device includes at least one of the following: an access network device and a core network device.
[0079] In some embodiments, terminal 101 includes, but is not limited to, 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.
[0080] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.
[0081] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).
[0082] 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.
[0083] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. 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 and centrally controlled by the CU. However, this is not the only possibility.
[0084] 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.
[0085] 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.
[0086] 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).
[0087] In some embodiments, dynamic cell (or cell group) change technology is proposed to improve the efficiency of terminal handover to a cell (or cell group).
[0088] For example, in a 5G system, network equipment can provide a terminal with one or more candidate configurations (also known as candidate cell (or cell group) configurations), where one candidate configuration can correspond to one or more "cells (or cell groups)". The network equipment can subsequently control the terminal to change among the multiple candidate configurations via L1 signaling (e.g., DCI (Downlink Control Information)) or L2 signaling (e.g., MAC CE (Media Access Control Element)). For example, it can change the working cell (or cell group) from cell (or cell group) #1 to cell (or cell group) #2. Since the terminal has already obtained the candidate configuration corresponding to the cell, this facilitates rapid cell switching for communication.
[0089] The aforementioned L1 and L2 signaling can be referred to as "cell change control signaling," and the process of changing the cell can also be called an LTM (L1 / L2-triggered Mobility) process. This cell change process can be assisted by configuring L1 measurement reporting (e.g., reporting CSI (Channel State Information) reports). For example, network devices can select from multiple candidate configurations based on L1 measurement reporting.
[0090] In some embodiments, in order to support the LTM process, the network device can configure the terminal to have an L1 measurement reporting process based on "event-triggered reporting". Then, after a specific measurement reporting event is met, the terminal reports (or sends) its L1 measurement results to the network device. For example, it can report to the network device through a MAC CE for L1 measurement reporting.
[0091] In some embodiments, when a terminal sends a MAC CE, it needs to send it on the uplink time-frequency resources specified by the uplink authorization allocated by the network. In order for the terminal to quickly notify the network device to obtain uplink authorization, the network device can allocate SR (Scheduling Request) resources for the MAC CE used for L1 measurement reporting. Then, when the terminal triggers the reporting of the MAC CE used for L1 measurement reporting, the terminal can send an SR to quickly notify the network device that it needs to provide the corresponding uplink authorization for the terminal.
[0092] In some embodiments, regarding event-triggered measurement reporting, the network device can configure a specific measurement reporting event for the terminal. When the terminal satisfies the specific measurement reporting event, it will report the L1 measurement result to the network device. For example, the measurement reporting event may include at least one of the following:
[0093] Event A1: The serving cell (or cell group) signal quality is better than the threshold.
[0094] Event A2: The signal quality of the serving cell (or cell group) is below the threshold.
[0095] Event A3: The signal quality of the neighboring cell (or cell group) is better than the signal quality of PCell / PSCell by a certain value.
[0096] Event A4: The signal quality of the neighboring cell (or cell group) is better than the threshold.
[0097] Event A5: PCell / PSCell signal quality is below the threshold, and neighbor cell (or cell group) signal quality is better than the threshold (PCell / PSCell becomes worse than threshold1 and neighbor becomes better than threshold2).
[0098] Event A6: The signal quality of the neighboring cell (or cell group) is better than the SCell signal quality by a certain value.
[0099] In some embodiments, when evaluating whether a measurement reporting event is met, the terminal can determine whether to trigger L1 measurement reporting based on the Entering Condition and Leaving Condition.
[0100] For example, taking Event A3 above as an example. When the duration for which the terminal's cell measurement result meets the Entering Condition of Event A3 (e.g., the signal quality of the neighboring cell (or cell group) is better than the PCell / PSCell signal quality by a certain value) is greater than or equal to the threshold value configured by the network device, the terminal triggers L1 measurement reporting. When the duration for which the terminal's cell measurement result meets the Leaving Condition of Event A3 (e.g., the signal quality of the neighboring cell (or cell group) is lower than the PCell / PSCell signal quality by a certain value) reaches the threshold value configured by the network, the terminal cancels L1 measurement reporting (e.g., removes the L1 measurement result to be reported).
[0101] In some embodiments, mTRP (Multiple Transmit / Receive Point) technology is proposed to improve communication efficiency.
[0102] For example, a network device can be configured to have multiple TRPs in a serving cell for a terminal, allowing communication with the terminal through multiple TRPs within that serving cell. In this case, the network device can activate up to eight TCI-states for the terminal via MAC CE, where TCI stands for Transmission Configuration Indicator. Furthermore, the network device can use DCI to indicate the TCI-state used by the terminal among the activated TCI-states; one DCI can indicate up to two TCI-states used simultaneously.
[0103] Among them, TCI-state corresponds to beam. For example, the terminal can determine the activated beam based on the TCI-state activated by MAC CE, and the terminal can determine the used beam based on the TCI-state indicated by DCI.
[0104] As described above, network devices can activate multiple beams for terminals or instruct terminals to use multiple beams. In this case, when the terminal performs measurement reporting event evaluation, it is not clear which beam to use for measurement reporting event evaluation. There may even be a problem that the beam used by the terminal for measurement reporting event evaluation is inconsistent with the beam that the network device believes the terminal is using for measurement reporting event evaluation.
[0105] Figure 2 is an interactive schematic diagram of a beam determination method according to an embodiment of the present disclosure.
[0106] For example, the beam determination method can be executed by the terminal.
[0107] In some embodiments, the terminal may determine the serving beam (e.g., the current beam).
[0108] For example, when there are multiple serving beams (e.g., more than or equal to 2), the network device and terminal will perform operations based on the embodiment shown in FIG2; for example, when there is 1 serving beam, the network device and terminal may default to using this 1 serving beam for measurement and reporting event evaluation.
[0109] In some embodiments, the terminal may receive the TCI-state sent by the network device, and then determine multiple service beams based on the TCI-state.
[0110] For example, a TCI-state can be associated with a beam, and the terminal can determine the beam associated with the TCI-state as the serving beam based on the association.
[0111] For example, the TCI-state configuration may include at least one of the following: SSB (Synchronous Signal Block) configuration (e.g., indicated by the identification of the SSB), and CSI-RS (Channel State Information Reference Signal) configuration (e.g., indicated by the identification of the CSI-RS).
[0112] For example, an SSB configuration (such as an SSB identifier) can be associated with a beam, and the terminal can determine that the beam associated with the SSB configuration is the serving beam; similarly, a CSI-RS configuration (such as a CSI-RS identifier) can be associated with a beam, and the terminal can determine that the beam associated with the CSI-RS configuration is the serving beam.
[0113] In some embodiments, the types of the plurality of service beams include at least one of the following:
[0114] MAC CE activated beam;
[0115] DCI-indicated beam.
[0116] For example, a network device sends RRC signaling to a terminal, indicating at least one beam, which may be called a candidate beam. For example, the RRC signaling may indicate at least one TCI-state, which may be called a candidate TCI-state, and the terminal determines the beam associated with the candidate TCI-state as the candidate beam.
[0117] Furthermore, the network device can send a MAC CE to the terminal, indicating at least one beam among the candidate beams, which may be referred to as the active beam. For example, the MAC CE may indicate at least one (e.g., less than or equal to 8) TCI-state among the candidate TCI-states, which may be referred to as the active TCI-state. The terminal determines the beam associated with the active TCI-state as the active beam.
[0118] Furthermore, the network device can send a DCI to the terminal, indicating at least one beam in the active beam, which can be referred to as the used beam. For example, one TCI-state codepoint in the DCI can indicate at least one (e.g., two) TCI-states in the active TCI-state, which can be referred to as the used TCI-state. The terminal determines the beam associated with the used TCI-state as the used beam.
[0119] For example, a terminal can determine that the active beam indicated by the MAC (also known as the beam activated by the MAC CE) is the serving beam; for example, a terminal can determine that the beam indicated by the DCI (e.g., the using beam) is the serving beam.
[0120] As shown in Figure 2, the beam determination method may include the following steps:
[0121] In step S201, the terminal receives instruction information sent by the network device.
[0122] In some embodiments, the indication information is used to indicate a first beam among a plurality of service beams for measuring the assessment of reported events.
[0123] In some embodiments, the indication information may include information transmitted in a broadcast manner, information transmitted in a unicast manner, or information transmitted in a multicast manner. For example, the indication information may include system information, System Information Block (SIB), paging messages, RRC signaling, MAC CE, DCI, etc.
[0124] In step S202, the terminal determines the first beam among multiple serving beams for measuring the evaluation of reported events.
[0125] In some embodiments, the terminal may determine a first beam for measuring the evaluation of reported events among multiple service beams based on indication information.
[0126] In some embodiments, the terminal may determine a first beam for measuring and evaluating reported events from among multiple serving beams according to predefined rules. In this case, step S201 described above may be omitted, and the network device may also determine a first beam for measuring and evaluating reported events from among multiple serving beams according to predefined rules, wherein the first beam determined by the network device according to the predefined rules is the same as the first beam determined by the terminal according to the predefined rules.
[0127] According to embodiments of this disclosure, when a terminal communicates based on multiple service beams, it can indicate a first beam for measuring and evaluating reported events among the multiple service beams based on indication information from the network device. Alternatively, the terminal and the network device can indicate the first beam for measuring and evaluating reported events among the multiple service beams according to predefined rules. This facilitates ensuring that the terminal and the network device have a consistent understanding of the beam used for measuring and evaluating reported events, and that both can determine that the first beam is used for measuring and evaluating reported events.
[0128] In some embodiments, the measurement reporting event may include any one of the events A1 to A6 described above. The first beam is used for measurement reporting event evaluation, which may refer to the terminal determining whether the measurement reporting event is satisfied based on the measurement results of the first beam.
[0129] Taking event A1 as an example, the terminal determines that the first beam is used for event A1 evaluation. This may include the terminal determining the signal quality of the serving cell (or cell group) based on the measurement results of the first beam, and then determining that the measurement results meet event A1 if the service quality is better than a threshold. Further, for example, if at least one or every measurement result within the time window meets event A1, the terminal may trigger L1 measurement reporting (e.g., reporting the measurement results of the first beam).
[0130] For example, the terminal's serving beams include beam#1 and beam#2. The terminal determines beam#2 as the first beam for evaluating measurement reporting events based on predefined rules or instructions from the network device. Taking event A1 as an example, the terminal can determine the signal quality of the serving cell (or cell group) based on the measurement results of beam#2, and then determine that the measurement results satisfy event A1 if the service quality is better than a threshold. Further, for example, if at least one or every measurement result within a time window satisfies event A1, the terminal can trigger L1 measurement reporting (e.g., reporting the measurement results for beam#2). After receiving the measurement results reported by the terminal, the network device can determine that the measurement results are from beam#2.
[0131] The following examples illustrate how a terminal determines the first beam for evaluating a measurement-reported event from multiple service beams according to predefined rules.
[0132] In some embodiments, the predefined rules include at least one of the following:
[0133] Randomly select one of the plurality of serving beams as the first beam;
[0134] The first beam is selected from the plurality of service beams based on the reference signal measurement values of the plurality of service beams;
[0135] Based on the relevant index sorting of the plurality of service beams, the first beam is selected from the plurality of service beams;
[0136] Based on the type of the cell corresponding to the plurality of serving beams, the first beam is selected from the plurality of serving beams.
[0137] In some embodiments, the predefined rule includes randomly selecting a beam from the plurality of serving beams as the first beam. Taking the serving beams including beam #1 corresponding to TCI-state #1 and beam #2 corresponding to TCI-state #2 as an example, the terminal can randomly select a beam from beam #1 and beam #2 as the first beam.
[0138] In some embodiments, the predefined rule includes selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams. For example, if the serving beams include beam #1 corresponding to TCI-state #1 and beam #2 corresponding to TCI-state #2, the terminal can measure beam #1 to obtain measurement result #1 and measure beam #2 to obtain measurement result #2. Then, based on measurement result #1 and measurement result #2, it can select one beam from beam #1 and beam #2 as the first beam.
[0139] For example, a predefined rule could include selecting the beam corresponding to the largest reference signal measurement value from multiple serving beams as the first beam. Then the terminal could compare measurement result #1 and measurement result #2; for example, if measurement result #1 is the largest, the terminal could select beam #1 as the first beam.
[0140] For example, a predefined rule could include selecting the beam corresponding to the smallest reference signal measurement value from multiple serving beams as the first beam. Then the terminal can compare measurement result #1 and measurement result #2; for example, if measurement result #2 is the largest, the terminal can select beam #2 as the first beam.
[0141] In some embodiments, predefined rules can be applied to a specific measurement reporting event, and the first beam determined by the terminal based on the predefined rules can be applied to the evaluation of that specific measurement reporting event.
[0142] For example, a predefined rule might include selecting the beam corresponding to the largest reference signal measurement among multiple serving beams as the first beam. The logic of this predefined rule does not conflict with event A3, and therefore it can be applied to event A3. In this case, the first beam determined by the terminal based on the predefined rule can be applied to the evaluation of event A3.
[0143] For example, a predefined rule may include selecting the beam corresponding to the smallest reference signal measurement value among multiple serving beams as the first beam. The logic of this predefined rule does not conflict with events A2 and A5, and therefore can be applied to events A2 and / or A5. In this case, the first beam determined by the terminal based on the predefined rule can be applied to the evaluation of events A2 and / or A5.
[0144] In some embodiments, the reference signal measurement includes at least one of the following:
[0145] Reference Signal Received Power (RSRP), such as L1-RSRP;
[0146] Reference signal received quality (RSRQ), such as L1-RSRQ;
[0147] Signal-to-interference-and-noise ratio (SINR), such as L1-SINR.
[0148] In some embodiments, the predefined rules include sorting the plurality of service beams according to their relevant indexes (also referred to as numbers or identifiers) and selecting the first beam from the plurality of service beams.
[0149] For example, the relevant index of a beam includes at least one of the following:
[0150] The index of the Transmission Configuration Indicator (TCI) state;
[0151] Index of the synchronization signal block SSB;
[0152] Index of the Channel State Information Reference Signal (CSI-RS).
[0153] For example, based on the relevant indexes of the multiple serving beams, the first beam is selected from the multiple serving beams, including selecting the beam with the highest relevant index in the sorted list as the first beam. Taking the relevant index of the beam including the SSB index as an example, the terminal can determine the SSB index corresponding to the serving beam. For example, if the SSB indices corresponding to two serving beams are SSB#1 and SSB#2, the terminal can sort them in ascending order of the index (or in other ways, such as descending order). Then, SSB#1 is sorted first, so the terminal can determine that the beam corresponding to SSB#1 is the first beam.
[0154] For example, based on the relevant indexes of the multiple serving beams, the first beam is selected from the multiple serving beams, including selecting the beam with the latest relevant index as the first beam. Taking the relevant index of the beam including the CSI-RS index as an example, the terminal can determine the CSI-RS index corresponding to the serving beam. For example, if the CSI-RS indices corresponding to two serving beams are CSI-RS#1 and CSI-RS#2, the terminal can sort them according to the index from smallest to largest (or according to other methods, such as sorting from largest to smallest). Then, CSI-RS#2 is sorted last, so the terminal can determine that the beam corresponding to CSI-RS#2 is the first beam.
[0155] In some embodiments, the predefined rule includes selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams.
[0156] For example, the types of cells can include at least one of the following:
[0157] Primary cell (PCell);
[0158] Primary and secondary cells (PSCell);
[0159] Special cells (SpCell) can include PCCell and PSCell;
[0160] Cells within a Master Cell Group (MCG);
[0161] Cells within a secondary cell group (SCG).
[0162] For example, selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams includes at least one of the following:
[0163] The service beam of a specific cell is selected from the plurality of service beams as the first beam;
[0164] The serving beam of the primary cell is selected as the first beam from the plurality of serving beams.
[0165] The serving beam of the primary and secondary cells is selected as the first beam from the plurality of serving beams.
[0166] Taking the example of a predefined rule that selects a specific cell's service beam as the first beam from among the multiple service beams.
[0167] For example, when a measurement reporting event corresponds to a primary cell group (MCG), the terminal can select the primary cell's serving beam as the first beam from among multiple serving beams. For instance, the terminal can determine whether the measurement reporting event to be evaluated corresponds to a MCG. For example, for event A1, if the signal quality of event A1 in the MCG is better than a threshold, then event A1 can be determined to be a measurement reporting event corresponding to the MCG, and thus the terminal can select the primary cell's (PCell) serving beam as the first beam from among multiple serving beams. This helps ensure that the selected serving beam is suitable for evaluating measurement reporting events corresponding to the primary cell group.
[0168] For example, when the measurement reporting event corresponds to a secondary cell group, the terminal can select the serving beam of the secondary cell as the first beam from among multiple serving beams. For instance, the terminal can determine whether the measurement reporting event to be evaluated corresponds to a secondary cell group (SCG). For example, for event A1, if the signal quality of event A1 is better than a threshold for the secondary cell group (SCG), then event A1 can be determined to be a measurement reporting event corresponding to the secondary cell group (SCG), and thus the serving beam of the secondary cell (PSCell) can be selected as the first beam from among multiple serving beams. This helps ensure that the selected serving beam is suitable for evaluating measurement reporting events corresponding to secondary cell groups.
[0169] The communication method involved in the embodiments of this disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as a standalone embodiment, step S202 may be implemented as a standalone embodiment, and step S201+S202 may be implemented as a standalone embodiment, but is not limited thereto.
[0170] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.
[0171] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0172] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0173] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.
[0174] 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.
[0175] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.
[0176] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".
[0177] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.
[0178] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.
[0179] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.
[0180] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.
[0181] 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.
[0182] Corresponding to the aforementioned embodiments of the beamforming method, this disclosure also provides embodiments of the beamforming apparatus.
[0183] Figure 3 is a schematic block diagram illustrating a beamforming device according to an embodiment of the present disclosure. For example, the beamforming device can be applied to and / or installed in a terminal. As shown in Figure 3, the beamforming device includes: a processing module 301 and a receiving module 302.
[0184] In some embodiments, the processing module is configured to determine a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules; or, the receiving module is configured to receive indication information sent by a network device, wherein the processing module is configured to determine the first beam for measuring the evaluation of reported events among the plurality of service beams according to the indication information.
[0185] In some embodiments, the predefined rule includes at least one of the following: randomly selecting a beam from the plurality of serving beams as the first beam; selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams; selecting the first beam from the plurality of serving beams based on the relevant index sorting of the plurality of serving beams; and selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams.
[0186] In some embodiments, selecting the first beam from the plurality of service beams based on reference signal measurements of the plurality of service beams includes one of the following: selecting the beam corresponding to the largest reference signal measurement value from the plurality of service beams as the first beam; or selecting the beam corresponding to the smallest reference signal measurement value from the plurality of service beams as the first beam.
[0187] In some embodiments, the reference signal measurement includes at least one of the following: reference signal received power (RSRP); reference signal received quality (RSRQ); and signal-to-interference-plus-noise ratio (SINR).
[0188] In some embodiments, selecting the first beam from the plurality of service beams according to the relevant index sorting of the plurality of service beams includes one of the following: selecting the beam with the highest relevant index sorting among the plurality of service beams as the first beam; or selecting the beam with the lowest relevant index sorting among the plurality of service beams as the first beam.
[0189] In some embodiments, the beam-related index includes at least one of the following: an index of the Transmission Configuration Indication State (TCI-state); an index of the Synchronization Signal Block (SSB); and an index of the Channel State Information Reference Signal (CSI-RS).
[0190] In some embodiments, selecting the first beam from the plurality of serving beams according to the type of the cells corresponding to the plurality of serving beams includes at least one of the following: selecting the serving beam of a special cell from the plurality of serving beams as the first beam; selecting the serving beam of a primary cell from the plurality of serving beams as the first beam; or selecting the serving beams of a primary and a secondary cell from the plurality of serving beams as the first beam.
[0191] In some embodiments, selecting the service beam of a specific cell as the first beam from the plurality of service beams includes at least one of the following: when the measurement reporting event corresponds to a measurement reporting event of a primary cell group, selecting the service beam of the primary cell as the first beam from the plurality of service beams; when the measurement reporting event corresponds to a measurement reporting event of a secondary cell group, selecting the service beam of the secondary cell as the first beam from the plurality of service beams.
[0192] In some embodiments, the receiving module is further configured to receive the TCI-state sent by the network device; the processing module is further configured to determine the plurality of serving beams based on the TCI-state.
[0193] In some embodiments, the types of the plurality of service beams include at least one of the following: beams activated by the Media Access Control Unit (MAC CE); beams indicated by the Downlink Control Information (DCI).
[0194] Figure 4 is a schematic block diagram illustrating a beamforming device according to an embodiment of the present disclosure. For example, the beamforming device can be applied to and / or installed in a network device. As shown in Figure 4, the beamforming device includes: a processing module 401 and a transmitting module 402.
[0195] In some embodiments, the processing module is configured to determine a first beam for measuring the evaluation of reported events among a plurality of service beams according to predefined rules; or, the sending module is configured to send indication information to the terminal, the indication information being used to instruct the terminal to determine the first beam for measuring the evaluation of reported events among the plurality of service beams.
[0196] In some embodiments, the predefined rule includes at least one of the following: randomly selecting a beam from the plurality of serving beams as the first beam; selecting the first beam from the plurality of serving beams based on reference signal measurements of the plurality of serving beams; selecting the first beam from the plurality of serving beams based on the relevant index sorting of the plurality of serving beams; and selecting the first beam from the plurality of serving beams based on the type of the cell corresponding to the plurality of serving beams.
[0197] In some embodiments, selecting the first beam from the plurality of service beams based on reference signal measurements of the plurality of service beams includes one of the following: selecting the beam corresponding to the largest reference signal measurement value from the plurality of service beams as the first beam; or selecting the beam corresponding to the smallest reference signal measurement value from the plurality of service beams as the first beam.
[0198] In some embodiments, the reference signal measurement includes at least one of the following: reference signal received power (RSRP); reference signal received quality (RSRQ); and signal-to-interference-plus-noise ratio (SINR).
[0199] In some embodiments, selecting the first beam from the plurality of service beams according to the relevant index sorting of the plurality of service beams includes one of the following: selecting the beam with the highest relevant index sorting among the plurality of service beams as the first beam; or selecting the beam with the lowest relevant index sorting among the plurality of service beams as the first beam.
[0200] In some embodiments, the beam-related index includes at least one of the following: an index of the Transmission Configuration Indication State (TCI-state); an index of the Synchronization Signal Block (SSB); and an index of the Channel State Information Reference Signal (CSI-RS).
[0201] In some embodiments, selecting the first beam from the plurality of serving beams according to the type of the cells corresponding to the plurality of serving beams includes at least one of the following: selecting the serving beam of a special cell from the plurality of serving beams as the first beam; selecting the serving beam of a primary cell from the plurality of serving beams as the first beam; or selecting the serving beams of a primary and a secondary cell from the plurality of serving beams as the first beam.
[0202] In some embodiments, selecting the service beam of a specific cell as the first beam from the plurality of service beams includes at least one of the following: when the measurement reporting event corresponds to a measurement reporting event of a primary cell group, selecting the service beam of the primary cell as the first beam from the plurality of service beams; when the measurement reporting event corresponds to a measurement reporting event of a secondary cell group, selecting the service beam of the secondary cell as the first beam from the plurality of service beams.
[0203] In some embodiments, the sending module is further configured to send a TCI-state to the terminal, wherein the TCI-state is used by the terminal to determine the plurality of serving beams.
[0204] In some embodiments, the types of the plurality of service beams include at least one of the following: beams activated by the Media Access Control Unit (MAC CE); beams indicated by the Downlink Control Information (DCI).
[0205] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0206] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided 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.
[0207] 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.
[0208] 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).
[0209] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 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 5100 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.
[0210] As shown in Figure 5A, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can 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 5100 can be used to execute any of the above methods. Optionally, one or more processors 5101 can be used to invoke instructions to cause the communication device 5100 to execute any of the above methods.
[0211] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 5101 performs at least one of other steps (e.g., steps S201, S202, 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, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.
[0212] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data. Optionally, all or part of the memories 5103 may be located outside the communication device 5100. In optional embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuits 5104 are connected to the memories 5102, and the interface circuits 5104 can be used to receive data from the memories 5102 or other devices, and can be used to send data to the memories 5102 or other devices. For example, the interface circuits 5104 can read data stored in the memories 5102 and send the data to the processor 5101.
[0213] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. 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 and programs; (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.
[0214] Figure 5B is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to the schematic diagram of chip 5200 shown in Figure 5B, but it is not limited thereto.
[0215] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.
[0216] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, interface circuit 5202 is connected to memory 5203, and interface circuit 5202 can be used to receive data from memory 5203 or other devices, and interface circuit 5202 can be used to send data to memory 5203 or other devices. For example, interface circuit 5202 can read data stored in memory 5203 and send the data to processor 5201.
[0217] In some embodiments, the interface circuit 5202 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 5202 performing the communication steps (e.g., sending and / or receiving) in the above-described method refers to the interface circuit 5202 performing data interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).
[0218] 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.
[0219] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 5100, cause the communication device 5100 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.
[0220] This disclosure also provides a program product that, when executed by the communication device 5100, causes the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.
[0221] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
Claims
1. A method of beam determination, the method comprising: The method, executed by a terminal, includes: The method involves determining a first beam for measuring and evaluating reported events from among multiple service beams according to predefined rules, or receiving indication information sent by a network device and determining the first beam for measuring and evaluating reported events from among the multiple service beams based on the indication information.
2. The method of claim 1, wherein, The predefined rules include at least one of the following: Randomly select one of the plurality of serving beams as the first beam; The first beam is selected from the plurality of service beams based on the reference signal measurement values of the plurality of service beams; Based on the relevant index sorting of the plurality of service beams, the first beam is selected from the plurality of service beams; Based on the type of the cell corresponding to the plurality of serving beams, the first beam is selected from the plurality of serving beams.
3. The method of claim 2, wherein, The step of selecting the first beam from the plurality of service beams based on reference signal measurements of the plurality of service beams includes one of the following: The beam corresponding to the largest reference signal measurement value among the plurality of service beams is selected as the first beam; The beam corresponding to the smallest reference signal measurement value among the plurality of service beams is selected as the first beam.
4. The method according to claim 2 or 3, characterized in that, The reference signal measurement value includes at least one of the following: Reference signal received power RSRP; Reference signal reception quality (RSRQ); Signal-to-interference-plus-noise ratio (SINR).
5. The method of claim 2, wherein, The step of sorting the plurality of serving beams according to their relevant indexes and selecting the first beam from the plurality of serving beams includes one of the following: The beam with the highest relevant index sorting among the multiple service beams is selected as the first beam; The beam with the latest relevant index sorting among the multiple service beams is selected as the first beam.
6. The method according to claim 2 or 5, characterized in that, The relevant index of the beam includes at least one of the following: The index of the Transmission Configuration Indicator (TCI) state; Index of the synchronization signal block SSB; Index of the Channel State Information Reference Signal (CSI-RS).
7. The method of claim 2, wherein, The step of selecting the first beam from the plurality of serving beams according to the type of the corresponding cell of the plurality of serving beams includes at least one of the following: The service beam of a specific cell is selected from the plurality of service beams as the first beam; The serving beam of the primary cell is selected as the first beam from the plurality of serving beams. The serving beam of the primary and secondary cells is selected as the first beam from the plurality of serving beams.
8. The method of claim 7, wherein, The step of selecting the serving beam of a specific cell as the first beam from the plurality of serving beams includes at least one of the following: In the case that the measurement reporting event corresponds to the measurement reporting event of the primary cell group, the service beam of the primary cell is selected as the first beam from the plurality of service beams; When the measurement reporting event is a measurement reporting event corresponding to a secondary cell group, the service beam of the secondary cell is selected as the first beam from the plurality of service beams.
9. The method according to any one of claims 1 to 8, characterized in that, The method further includes: Receive the TCI-state sent by the network device; The plurality of service beams are determined based on the TCI-state.
10. The method according to any one of claims 1 to 9, characterized in that, The types of the plurality of service beams include at least one of the following: The beam activated by the Media Access Control Unit (MAC) CE; The beam indicated by the downlink control information (DCI). 11.A method for beam determination, the method comprising: Performed by a network device, the method includes: According to predefined rules, a first beam for measuring the evaluation of reported events is determined among multiple service beams; or, an indication message is sent to the terminal, the indication message being used to instruct the terminal to determine the first beam for measuring the evaluation of reported events among the multiple service beams.
12. The method of claim 11, wherein, The predefined rules include at least one of the following: Randomly select one of the plurality of serving beams as the first beam; The first beam is selected from the plurality of service beams based on the reference signal measurement values of the plurality of service beams; Based on the relevant index sorting of the plurality of service beams, the first beam is selected from the plurality of service beams; Based on the type of the cell corresponding to the plurality of serving beams, the first beam is selected from the plurality of serving beams.
13. The method of claim 12, wherein, The step of selecting the first beam from the plurality of service beams based on reference signal measurements of the plurality of service beams includes one of the following: The beam corresponding to the largest reference signal measurement value among the plurality of service beams is selected as the first beam; The beam corresponding to the smallest reference signal measurement value among the plurality of service beams is selected as the first beam.
14. The method according to claim 12 or 13, characterized in that, The reference signal measurement value includes at least one of the following: Reference signal received power RSRP; Reference signal reception quality (RSRQ); Signal-to-interference-plus-noise ratio (SINR).
15. The method of claim 12, wherein, The step of sorting the plurality of service beams according to their relevant indexes and selecting the first beam from the plurality of service beams includes one of the following: The beam with the highest relevant index sorting among the multiple service beams is selected as the first beam; The beam with the latest relevant index sorting among the multiple service beams is selected as the first beam.
16. The method according to claim 12 or 15, characterized in that, The relevant index of the beam includes at least one of the following: The index of the Transmission Configuration Indicator (TCI) state; Index of the synchronization signal block SSB; Index of the Channel State Information Reference Signal (CSI-RS).
17. The method of claim 12, wherein, The step of selecting the first beam from the plurality of serving beams according to the type of the corresponding cell of the plurality of serving beams includes at least one of the following: The service beam of a specific cell is selected from the plurality of service beams as the first beam; The serving beam of the primary cell is selected as the first beam from the plurality of serving beams. The serving beam of the primary and secondary cells is selected as the first beam from the plurality of serving beams.
18. The method of claim 17, wherein, The step of selecting the serving beam of a specific cell as the first beam from the plurality of serving beams includes at least one of the following: In the case that the measurement reporting event corresponds to the measurement reporting event of the primary cell group, the service beam of the primary cell is selected as the first beam from the plurality of service beams; When the measurement reporting event is a measurement reporting event corresponding to a secondary cell group, the service beam of the secondary cell is selected as the first beam from the plurality of service beams.
19. The method according to any one of claims 11 to 18, characterized in that, The method further includes: The terminal sends a TCI-state, wherein the TCI-state is used by the terminal to determine the plurality of serving beams.
20. The method according to any one of claims 11 to 19, characterized in that, The types of the plurality of service beams include at least one of the following: The beam activated by the Media Access Control Unit (MAC) CE; The beam indicated by the downlink control information (DCI).
21. A beam determination apparatus, characterized by, The device includes: The processing module is configured to determine a first beam for measuring and evaluating reported events among multiple service beams according to predefined rules; or, the receiving module is configured to receive indication information sent by a network device, wherein the processing module is configured to determine the first beam for measuring and evaluating reported events among multiple service beams according to the indication information.
22. A beam determination apparatus, characterized by, The device includes: The processing module is configured to determine a first beam for measuring and evaluating reported events among multiple service beams according to predefined rules; or, the sending module is configured to send indication information to the terminal, the indication information being used to instruct the terminal to determine the first beam for measuring and evaluating reported events among the multiple service beams.
23. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the beam determination method according to any one of claims 1 to 10.
24. A network device, comprising: include: One or more processors; The network device is used to perform the beam determination method according to any one of claims 11 to 20.
25. A communication system, characterized by The device includes a terminal and a network device, wherein the terminal is configured to implement the beam determination method according to any one of claims 1 to 10, and the network device is configured to implement the beam determination method according to any one of claims 11 to 20.
26. A storage medium, the storage medium storing instructions, wherein, When the instruction is executed on the communication device, the communication device performs the beam determination method according to any one of claims 1 to 20.
27. A program product, characterized by When the above-described program product is executed by a communication device, the communication device performs the beam determination method according to any one of claims 1 to 20.