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WO2017049929A1 - Procédé et dispositif de mesurage de porteuse non autorisée - Google Patents

Procédé et dispositif de mesurage de porteuse non autorisée Download PDF

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Publication number
WO2017049929A1
WO2017049929A1 PCT/CN2016/083026 CN2016083026W WO2017049929A1 WO 2017049929 A1 WO2017049929 A1 WO 2017049929A1 CN 2016083026 W CN2016083026 W CN 2016083026W WO 2017049929 A1 WO2017049929 A1 WO 2017049929A1
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WO
WIPO (PCT)
Prior art keywords
node
terminal
unlicensed carrier
rssi
measuring
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Application number
PCT/CN2016/083026
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English (en)
Chinese (zh)
Inventor
陈中明
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中兴通讯股份有限公司
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Publication of WO2017049929A1 publication Critical patent/WO2017049929A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • This document relates to, but is not limited to, unlicensed carrier technology in the field of communications, and in particular to a method and apparatus for measuring unlicensed carriers.
  • cell reselection and handover are important functions.
  • the terminal UE, User Equipment
  • the terminal needs to measure the signal quality of different cells in order to select a suitable cell to camp.
  • the UE After the UE establishes a connection with the network in a certain cell, the UE still needs to measure the signal quality of its neighboring cell, so as to select a suitable cell for handover to meet the mobility requirement.
  • the UE measures the cell signal quality in the connected state, and the network side sends the measurement control message to the UE, where the measurement control message includes the measurement identifier, the measurement object, and the report.
  • the measurement object contains measurement object attributes, such as carrier frequency, neighbor list, etc.
  • the report configuration includes report configuration attributes, such as event trigger or periodic report, triggered event definition (A1, A2%), and number of reports.
  • the UE performs measurement and evaluation according to the measurement object and the report configuration in the measurement control message, and generates a measurement report according to the measurement result and reports it to the network side.
  • the measurement object when the measurement object satisfies the event entry condition, such as when the measurement object signal quality is better than the threshold duration is greater than or equal to the trigger time (TTT, Time To Trigger), it is considered to satisfy the event trigger condition. Measuring object. After the measurement object satisfies the trigger condition of the event, the measurement report is reported to the network side.
  • TTT Time To Trigger
  • LTE-A Long Term Evolution
  • CA Carrier Aggregation
  • Pcell Primary Cell
  • Scell Secondary Cell
  • Dual Connectivity Dual Connectivity
  • the multiple service nodes of the terminal are multiple base stations, and the delay between the base stations is not negligible.
  • one network node is a macro base station called a primary evolved Node B (MeNB), and the other network node is a small cell base station called a secondary evolved Node B (SeNB).
  • MeNB primary evolved Node B
  • SeNB secondary evolved Node B
  • Unlicensed carrier refers to the spectrum (or carrier) that can be used directly without authorization, subject to the relevant regulations (radio control) of government agencies (eg, National Radio Regulatory Commission). For example, microwave ovens, remote-controlled toy airplanes, wireless mice, wireless keyboards, wireless fidelity (WiFi), etc. all use unlicensed carriers. In some cases, unlicensed carriers need to compete to be used. If the base station (including the WiFi access point) does not compete for resources, the unlicensed carrier cannot be used.
  • the unlicensed carrier and the authorized carrier may be used in a carrier aggregation manner or in a dual connectivity manner.
  • the unlicensed carrier is generally used as a supplement to the data transmission, that is, the authorized carrier is used as the primary serving cell, and the unlicensed carrier is used as the secondary serving cell.
  • the unlicensed carrier resource has a special feature.
  • the Received Signal Strength Indication (RSSI) and the percentage above the specified threshold are reported by the terminal.
  • the purpose is to obtain the overall load of the frequency.
  • RSSI is the average RSSI.
  • the embodiment of the invention provides a method and a device for measuring an unlicensed carrier, so as to implement the terminal to report the RSSI to the base station.
  • the method for measuring an unlicensed carrier provided by the embodiment of the present invention is applied to a terminal, and the method includes:
  • configuration information sent by the base station where the configuration information is configuration information of the RSSI that needs to be measured
  • the measuring the average RSSI according to the configuration information includes:
  • the average RSSI of the network environment is measured when the serving node is occupied by the terminal.
  • the measuring the average RSSI according to the configuration information includes:
  • the average RSSI of the network environment is measured when the serving node is not occupied by the terminal.
  • the measuring the average RSSI according to the configuration information includes:
  • the method further includes:
  • the signal quality of the serving node is transmitted to the base station.
  • a receiving unit configured to receive configuration information sent by the base station, where the configuration information is configuration information of an RSSI that needs to be measured;
  • a measuring unit configured to measure a specified average RSSI according to the configuration information
  • a sending unit configured to send the average RSSI to the base station.
  • the measuring unit is further configured to: when a node on the unlicensed carrier is used as a serving node of the terminal, and when the serving node is occupied by the terminal, measure an RSSI of the network environment.
  • the measuring unit is configured to measure an average RSSI of the network environment when a node on the unlicensed carrier is used as a serving node of the terminal, and when the serving node is not occupied by the terminal. .
  • the measuring unit is configured to measure an average RSSI of the network environment when a node on the unlicensed carrier is not configured as a serving node of the terminal.
  • the sending unit is further configured to: when a node on the unlicensed carrier is used as the serving node of the terminal, send the signal quality of the serving node to the base station.
  • the terminal receives the configuration information sent by the base station, and according to the configuration information, measures the specified RSSI; and sends the RSSI to the base station. Therefore, the base station obtains the overall load condition of the unlicensed frequency in time, and obtains the interference situation of the terminal side, facilitates the base station to perform frequency selection, and discovers the hidden node in time.
  • FIG. 1 is a schematic flowchart of a method for measuring an unlicensed carrier according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a scenario according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of a device for measuring an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for measuring an unlicensed carrier according to an embodiment of the present invention.
  • the method for measuring an unlicensed carrier in this example is applied to a terminal.
  • the method for measuring an unlicensed carrier includes the following steps:
  • Step 101 Receive configuration information sent by the base station, where the configuration information is configuration information of the RSSI that needs to be measured.
  • the terminal receives configuration information sent by the base station.
  • Step 102 Measure a specified RSSI according to the configuration information.
  • the terminal measures the specified RSSI according to the configuration information.
  • the first case when a node on an unlicensed carrier is used as a serving node of the terminal, the RSSI of the network environment is measured when the serving node is occupied by the terminal.
  • the second case when the node on the unlicensed carrier is used as the serving node of the terminal, the RSSI of the network environment is measured when the serving node is not occupied by the terminal.
  • the third case when the node on the unlicensed carrier is not configured as the serving node of the terminal, the RSSI of the network environment is measured.
  • Step 103 Send the RSSI to the base station.
  • the RSSI is sent by the terminal to the base station.
  • the signal quality of the serving node is also sent to the base station.
  • a node A that is authorized to access the LAA (that is, node A on an unlicensed carrier) is configured as a serving node, and a node B of the LAA (that is, on an unlicensed carrier).
  • Node B is not configured for the terminal as a service node.
  • WiFi node C It is a visible node.
  • the node D of the LAA (that is, the node D on the unlicensed carrier) is a hidden node, and the terminal can measure it, but the base station cannot measure it.
  • Node E of WiFi is a hidden node.
  • the base station has two areas, one area is cell 1 (authorized carrier), the other area is cell 3 (corresponding node A) and cell 4 (corresponding node B), cell 3 and cell 4 are unlicensed carriers, and the frequency point is f3.
  • the frequency points of nodes C, D, and E are both f3.
  • Node F represents a LAA node or a WiFi node of other frequency points such as f4.
  • Embodiment 1 The terminal camps on the cell 1 and initiates a radio resource control (RRC) connection establishment on the cell 1. After the RRC connection establishment process is completed, the UE enters a connected state, and the cell 1 is a PCell.
  • RRC radio resource control
  • FIG. 3 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 1 of the present invention, where the method includes the following steps:
  • Step 301 The base station needs to configure carrier aggregation for the UE, and the base station configures the cell 3 (ie, node A) to the terminal according to the measurement report of the terminal.
  • the cell 3 is referred to as a secondary serving cell, and the cell 3 is a cell on the unlicensed carrier.
  • the resource competition process needs to be performed first, and the data can be normally sent and received after successful. Since the cell 3 is configured as a serving cell of the terminal, the node A is a serving node.
  • Step 302 The base station sends the measurement task 1 to the terminal to measure the RSSI of the carrier frequency f3, and the measurement task 2 is sent to the terminal to measure the RSSI of the carrier frequency f4.
  • Measurement task 3 measures the signal quality RSRP of the serving cell 3 on the carrier frequency f3.
  • the time period and offset of the measurement are configured, for example, the period is 40 ms offset is 2; and the measured time length, for example, 6 ms, or the measurement time length is fixed, as specified by the protocol.
  • the time period and offset of the measurement are also given.
  • the period is 40ms
  • the offset is 3 (f3 and f4 time are not aligned, in order to make the measurement time aligned, it can be corrected by offset);
  • the length of time for example, is 6ms.
  • the measurement task 3 When the measurement task 3 is sent, the signal quality RSRP of the serving cell 3 on the carrier frequency f3 is measured, or the measurement task 1 is reported together, that is, the measurement task 3 is not sent, and the service task 1 needs to be reported on the carrier frequency f3.
  • Step 303 The terminal receives the measurement task and performs RSSI measurement of f3 and f4.
  • the signal quality of the cell 3 on the f3 is measured and reported to the base station, and the RSRP-1 is reported in the measurement task 1.
  • Step 304 The base station receives the measurement report of the measurement tasks 1, 2, and the overall load situation on f3 is learned according to RSSI-1.1 and RSSI-1.2; the overall load condition of f4 is obtained according to RSSI-2; the interference of terminal side f3 can pass RSSI-1.1 minus RSRP1 and RSSI-1.2 are known.
  • Step 305 The base station finds that the overall load on f3 is relatively high, and the overall load on f4 is relatively low, and the neighboring area measurement on f4 is sent to the terminal, so that the cell 3 is replaced by the cell on f4.
  • the base station finds that the interference on the terminal side f3 is relatively strong, and can also send the neighboring area measurement on the other carrier frequency, such as f4, to consider changing the cell 3 to the cell on the f4.
  • Embodiment 2 The terminal camps on the cell 1 and initiates an RRC connection establishment on the cell 1. After the RRC connection establishment process is completed, the UE enters a connected state, and the cell 1 is a PCell.
  • FIG. 4 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 2 of the present invention, where the method includes the following steps:
  • Step 401 The base station needs to configure carrier aggregation for the UE, and the base station configures the cell 3 (ie, node A) to the terminal according to the measurement report of the terminal.
  • the cell 3 is referred to as a secondary serving cell, and the cell 3 is a cell on the unlicensed carrier.
  • the resource competition process needs to be performed first, and the data can be normally sent and received after successful. Since the cell 3 is configured as a serving cell of the terminal, the node A is a serving node.
  • Step 402 The base station sends the measurement task 1 to the terminal to measure the RSSI of the carrier frequency f3, and the measurement task 2, and measures the RSSI of the carrier frequency f4, in order to obtain the overall load situation and obtain the interference situation on the terminal side.
  • the time period and offset of the measurement are given, for example, the period is 40 ms, the offset is 2; and the measured time length, for example, 6 ms, or the measurement time length is fixed, as specified by the protocol.
  • the terminal Since the node A on the f3 is the serving node of the terminal, the terminal is notified to perform measurement and reporting of the two RSSIs.
  • One is that when the node A is occupied by the terminal, that is, after the resource competition process on the node A is successful, the terminal Obtain the time for the data transmission and reception of the node A, and the measurement result is RSSI-1.1; the other is, when the node A is not occupied by the terminal, that is, the resource competition process on the node A is not successful, and the node is not obtained.
  • the time for A to schedule data transmission and reception, the measurement result at this time is RSSI-1.2, and the signal quality of the serving cell 3 on the carrier frequency f3 needs to be reported.
  • the time period and offset of the measurement are also given.
  • the period is 40ms
  • the offset is 3 (f3 and f4 time are not aligned, in order to make the measurement time aligned, it can be corrected by offset);
  • the length of time is, for example, 6 ms. Since the terminal is not configured with the node on f4 as the serving node, the terminal is notified that only one RSSI measurement and reporting is required, that is, RSSI-2 within a specified time.
  • Step 403 The terminal receives the measurement task and performs RSSI measurement of f3 and f4.
  • the measurement of the relevant RSSI is performed, the RSSI-1.1 and the RSSI-1.2 are reported, the signal quality of the cell 3 on the f3 is measured, and the RSRP-1 is reported in the measurement task 1.
  • Step 404 The base station receives the measurement report of the measurement tasks 1, 2, and the overall load situation on f3 can be learned according to RSSI-1.1 and RSSI-1.2; the overall load situation on f4 can be learned according to RSSI-2; the interference on the terminal side f3, It can be learned by subtracting RSRP1 and RSSI-1.2 from RSSI-1.1.
  • Step 405 The base station finds that the overall load on f3 is relatively high, and the overall load on f4 is relatively low, and the neighboring area measurement on f4 can be sent to the terminal, so that the cell 3 is replaced by the cell on f4.
  • the base station finds that the interference on the terminal side f3 is relatively strong, and can also send other carrier frequencies such as f4 to the terminal.
  • the neighboring area is measured, so that the cell 3 is considered to be replaced by the cell on f4.
  • Embodiment 3 The terminal camps on the cell 1 and initiates an RRC connection establishment on the cell 1. After the RRC connection establishment process is completed, the UE enters a connected state, and the cell 1 is a PCell.
  • FIG. 5 is a schematic flowchart of a method for measuring an unlicensed carrier according to Embodiment 3 of the present invention, where the method includes the following steps:
  • Step 501 The base station needs to configure carrier aggregation for the UE, and the base station configures the cell 3 (ie, node A) to the terminal according to the measurement report of the terminal.
  • the cell 3 is referred to as a secondary serving cell, and the cell 3 is a cell on the unlicensed carrier.
  • the resource competition process needs to be performed first, and the data can be normally sent and received after successful. Since the cell 3 is configured as a serving cell of the terminal, the node A is a serving node.
  • Step 502 The base station sends a measurement task 1 to the terminal to discover the hidden node, and measures the RSSI of the carrier frequency f3.
  • the time period and offset of the measurement are given, for example, the period is 40 ms, the offset is 2; and the measured time length, for example, 6 ms, or the measurement time length is fixed, as specified by the protocol.
  • the terminal Since the node A on the f3 is the serving node of the terminal, the base station only needs to know the situation of the hidden node. Therefore, the terminal is notified to perform an RSSI measurement and reporting. When the node A is occupied by the terminal, that is, the node A is executed. After the resource competition process is successful, the terminal obtains the time for the node A to perform data transmission and reception, and the RSSI-1.1 at this time additionally includes the signal quality of the serving cell 3 that needs to be reported on the carrier frequency f3.
  • Step 503 The terminal receives the measurement task and performs the RSSI measurement of f3.
  • the measurement of the relevant RSSI is performed, the RSSI-1.1 is reported, the signal quality of the cell 3 on the f3 is measured, and the RSRP-1 is reported in the measurement task 1.
  • Step 504 The base station receives the measurement report of the measurement task 1, and the hidden node condition on the f3 can be learned by subtracting the RSRP1 from the RSSI-1.1.
  • Step 505 The base station finds that there is a hidden node on the f3, and the interference situation is relatively strong.
  • the terminal can send the neighboring cell measurement on other carrier frequencies, such as f4, to consider changing the cell 3 to the cell on the f4.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
  • FIG. 6 is a schematic structural diagram of a device for measuring an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 6, the device includes:
  • the receiving unit 61 is configured to receive configuration information sent by the base station, where the configuration information is configuration information of the RSSI that needs to be measured;
  • the measuring unit 62 is configured to measure the specified RSSI according to the configuration information
  • the sending unit 63 is configured to send the RSSI to the base station.
  • a node on an unlicensed carrier is used as a serving node of the terminal;
  • the measuring unit 62 is configured to measure a RSSI of the network environment when a node on the unlicensed carrier is used as a serving node of the terminal, and when the serving node is occupied by the terminal.
  • the measuring unit 62 is configured to measure a RSSI of the network environment when a node on the unlicensed carrier is used as a serving node of the terminal, and when the serving node is not occupied by the terminal.
  • the node on the unlicensed carrier is not configured as the serving node of the terminal;
  • the measuring unit 62 is configured to measure the RSSI of the network environment when a node on the unlicensed carrier is not configured as a serving node of the terminal.
  • the sending unit 63 is further configured to: when a node on the unlicensed carrier is used as the serving node of the terminal, send the signal quality of the serving node to the base station.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • the invention is not limited to any specific form of combination of hardware and software.
  • the foregoing technical solution enables the base station to obtain the RSSI from the terminal, so that the base station obtains the overall load condition of the unlicensed frequency in time, and obtains the interference situation of the terminal side, facilitates the base station to perform frequency selection, and discovers the hidden node in time.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de mesurage de porteuse non autorisée. Dans le procédé selon l'invention, un terminal : reçoit des informations de configuration envoyées par une station de base, les informations de configuration étant des informations de configuration d'un RSSI en cours de mesurage ; mesurer un RSSI spécifié, d'après les informations de configuration ; et envoyer le RSSI à la station de base.
PCT/CN2016/083026 2015-09-24 2016-05-23 Procédé et dispositif de mesurage de porteuse non autorisée WO2017049929A1 (fr)

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CN201510618826.9 2015-09-24
CN201510618826.9A CN106559825A (zh) 2015-09-24 2015-09-24 一种非授权载波的测量方法及装置

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CN108810961B (zh) 2017-04-28 2021-01-08 维沃移动通信有限公司 测量信息处理方法、终端及接入网节点
CN110419236B (zh) * 2017-06-15 2024-12-27 Oppo广东移动通信有限公司 无线通信方法和设备
CN109429217B (zh) * 2017-06-23 2021-11-19 中国移动通信有限公司研究院 一种信息交互方法、第一基站、第二基站和移动通信终端

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CN101115310A (zh) * 2007-08-29 2008-01-30 中兴通讯股份有限公司 一种微波存取全球互通系统中邻区列表的更新方法及系统
CN101938767A (zh) * 2009-06-26 2011-01-05 英飞凌科技股份有限公司 用于测量接收信号强度指示的方法、测量设备以及无线电通信设备
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