WO2010126298A2 - 기지국의 반송파 관리 장치, 반송파 관리 방법, 단말 및 단말의 반송파 관리 방법 - Google Patents

기지국의 반송파 관리 장치, 반송파 관리 방법, 단말 및 단말의 반송파 관리 방법 Download PDF

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Publication number
WO2010126298A2
WO2010126298A2 PCT/KR2010/002677 KR2010002677W WO2010126298A2 WO 2010126298 A2 WO2010126298 A2 WO 2010126298A2 KR 2010002677 W KR2010002677 W KR 2010002677W WO 2010126298 A2 WO2010126298 A2 WO 2010126298A2
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WO
WIPO (PCT)
Prior art keywords
carrier
primary carrier
change
terminal
base station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/002677
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English (en)
French (fr)
Korean (ko)
Other versions
WO2010126298A3 (ko
Inventor
김주희
김은경
정수정
차재선
임광재
이현
윤철식
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Priority to EP10769943.1A priority Critical patent/EP2426834B1/en
Priority to US13/266,919 priority patent/US9877249B2/en
Priority to CN201080029070XA priority patent/CN102804644A/zh
Priority to JP2012508399A priority patent/JP5714566B2/ja
Publication of WO2010126298A2 publication Critical patent/WO2010126298A2/ko
Publication of WO2010126298A3 publication Critical patent/WO2010126298A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to a carrier management apparatus of a base station, a carrier management method, a terminal and a carrier management method of the terminal.
  • a terminal and a base station may operate a plurality of carriers for data transmission band extension, which is called a multi carrier.
  • carriers are classified into two types, one of which is a primary carrier and the other of which is a secondary carrier.
  • the primary carrier is a carrier for transmitting and receiving various control information and data between the base station and the user equipment, and one of several carriers may be used as the primary carrier.
  • the secondary carrier is a carrier for data transmission band extension in the state of transmitting and receiving control information through the primary carrier. At this time, resource allocation information for all carriers is transmitted through the primary carrier, and after receiving the resource allocation information of the primary carrier, the terminal determines whether data of the secondary carrier is transmitted and processes the corresponding data.
  • the primary carrier and the secondary carrier of the terminal can be changed during operation due to load distribution and channel change.
  • An object of the present invention is to provide an efficient procedure for changing the operating state of the carrier of the terminal in a wireless access system supporting multiple carriers.
  • a carrier management method a method in which a terminal supporting multiple carriers manages a main carrier, receiving a main carrier change command from a base station, and using the main carrier as a target main carrier from a serving main carrier The step of changing to.
  • the primary carrier change command may be received through a carrier management command (AAI_CM_CMD) message.
  • AI_CM_CMD carrier management command
  • the AAI_CM_CMD message includes a target primary carrier index field, an indication of the next state of serving primary carrier field, an action time (AT) field, and ranging It may include at least one of the ranging indicator field.
  • next state field of the serving primary carrier is set to '1', the serving primary carrier before the change remains active as a secondary carrier after the changing step, and the next state field of the serving primary carrier is' If set to 0 ', the serving primary carrier may be deactivated after the changing step.
  • the new carrier index of the serving primary carrier is assigned to the previous carrier index of the target primary carrier, and the new carrier index of the target primary carrier is the previous carrier index of the serving primary carrier. Can be assigned.
  • Preparation for receiving data and control information may be completed on the target primary carrier by the time indicated by the operation time field.
  • the method may further include performing ranging according to the ranging indicator field before the time indicated by the operation time field.
  • the AAI_CM_CMD message may include an action code field used to distinguish at least one of a change of the primary carrier and a change of the activation and deactivation states of the secondary carrier.
  • the method may further include transmitting a message informing the base station of the change.
  • the transmitting of the message may be performed when the target primary carrier is in an inactive state.
  • the message informing the base station of the change may be delivered through a carrier change indication message (called AAI_CC_IND).
  • the changing may be performed without a scanning operation when the target primary carrier is in an active state.
  • the changing may be performed after scanning the target primary carrier when the target primary carrier is in an inactive state.
  • the method may further include transmitting a request for changing the primary carrier to the base station.
  • the primary carrier change request may be transmitted through a carrier change request (AAI_CC_REQ), and the AAI_CC_REQ message may include a candidate list of the target primary carrier.
  • AAI_CC_REQ carrier change request
  • the method may further include transmitting an acknowledgment for the primary carrier change command to the base station.
  • a base station supporting multiple carriers manages a primary carrier, transmitting and receiving a control signal with the terminal using a serving primary carrier, and commanding a terminal to change a primary carrier. Transmitting a step.
  • the primary carrier change command may be transmitted through a carrier management command (AAI_CC_CMD) message.
  • AI_CC_CMD carrier management command
  • the AAI_CM_CMD message includes a target primary carrier index field, an indication of the next state of serving primary carrier field, an action time (AT) field, and ranging It may include at least one of the ranging indicator field.
  • next state field of the serving primary carrier is set to '1', the serving primary carrier before the change remains active as a secondary carrier after the changing step, and the next state field of the serving primary carrier is' If set to 0 ', the serving primary carrier may be deactivated after the changing step.
  • the new carrier index of the serving primary carrier is assigned to the previous carrier index of the target primary carrier, and the new carrier index of the target primary carrier is the previous carrier index of the serving primary carrier. Can be assigned.
  • the method may further include completing preparation for receiving data and control information on the target primary carrier until the time indicated by the operation time field.
  • the method may further include performing ranging according to the ranging indicator field before the time indicated by the operation time field.
  • the AAI_CM_CMD message may include an action code field used to distinguish at least one of a change of the primary carrier and a change of the activation and deactivation states of the secondary carrier.
  • the method may further include receiving a message indicating that the main carrier has been changed from a serving main carrier to a target main carrier from the terminal.
  • Receiving a message indicating that the primary carrier has been changed from the terminal may be performed when the target primary carrier is inactive.
  • the message indicating that the primary carrier has been changed may be received through a carrier change indication message (called AAI_CC_IND).
  • the method may further include requesting scanning of the target primary carrier, and receiving the scanning result from the terminal.
  • the method may further include receiving a scanning request (AAI_SCN_REQ) message from the terminal, and transmitting a scanning response (AAI_SCN_RSP) message to the terminal.
  • a scanning request (AAI_SCN_REQ) message from the terminal
  • a scanning response (AAI_SCN_RSP) message to the terminal.
  • the AAI_SCN_REQ message may include scanning interval information and a carrier index field of an active carrier to be used for the scanning.
  • the AAI_SCN_RSP message may include scanning interval information and a carrier index field of an active carrier to be used for the scanning.
  • the method may further include receiving a request for changing the primary carrier from the terminal.
  • the primary carrier change request may be transmitted through a carrier change request (AAI_CC_REQ), and the AAI_CC_REQ message may include a candidate list of the target primary carrier.
  • AAI_CC_REQ carrier change request
  • the method may further include receiving an acknowledgment for the primary carrier change command from the terminal.
  • a terminal is a terminal supporting a medium carrier, a receiving unit for receiving a primary carrier change command from a base station, and changing a primary carrier from a serving primary carrier to a target primary carrier according to the primary carrier change command. It includes a change part.
  • the apparatus may further include a change request unit which requests the base station to change the main carrier, and a scanning processor that scans the target main carrier when the target main carrier is in an inactive state.
  • It may further include a command response unit for transmitting a message informing the base station of the change.
  • a management apparatus of a base station is a management apparatus of a base station supporting multiple carriers, and includes a change command unit for transmitting a change command of a primary carrier to a terminal, and reception of the main carrier change command from the terminal. And a receiving unit for receiving the confirmation.
  • the receiver may further receive a change result of the main carrier.
  • a method of managing a secondary carrier by a terminal supporting multiple carriers includes receiving a state change command of activation and deactivation of a secondary carrier from a base station, and indicating a state of the secondary carrier. Changing, and transmitting a message informing the base station of the change.
  • the method may further include receiving a request for scanning of the secondary carrier from the base station, and reporting the scanning result to the base station.
  • a base station supporting multiple carriers manages a secondary carrier, transmitting a command for activating and deactivating a secondary carrier to a terminal, and changing the state of the secondary carrier. And receiving from the terminal.
  • the method may further include requesting scanning of the secondary carrier and receiving a result of the scanning from the terminal.
  • the transmission efficiency of the system can be improved by efficiently managing and changing the multiple carriers.
  • FIG. 1 is a diagram schematically illustrating a mobile communication system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram schematically illustrating a terminal according to an embodiment of the present invention.
  • FIG. 3 is a block diagram schematically illustrating an apparatus for managing a base station according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a method of changing a primary carrier according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a method of changing a primary carrier according to another embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating a method of changing a state of an auxiliary carrier according to an embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a method of changing an activation state and an inactivation state of a secondary carrier according to another embodiment of the present invention.
  • a terminal is a mobile station (MS), a mobile terminal (MT), a subscriber station (SS), a portable subscriber station (PSS), a user equipment (User Equipment). It may also refer to a user equipment (UE), an access terminal (AT), and the like, and may include all or some functions of a terminal, a mobile terminal, a subscriber station, a portable subscriber station, a user device, an access terminal, and the like.
  • a base station includes an access point (AP), a radio access station (RAS), a node B (Node B), an advanced node B (evolved NodeB, eNodeB), transmission and reception It may also refer to a base transceiver station (BTS), a mobile multihop relay (MMR) -BS, and the like. It may also include.
  • AP access point
  • RAS radio access station
  • Node B node B
  • evolved NodeB evolved NodeB, eNodeB
  • BTS base transceiver station
  • MMR mobile multihop relay
  • FIG. 1 is a diagram schematically illustrating a mobile communication system according to an embodiment of the present invention
  • FIG. 2 is a block diagram schematically illustrating a terminal according to an embodiment of the present invention
  • FIG. 3 is a diagram of one embodiment of the present invention.
  • a mobile communication system includes terminals 100, 101, and 102 and a base station 200.
  • the terminal 100 transmits and receives data and control signals by accessing the base station 200, and the base station 200 allocates resources to the terminal 100 and transmits and receives data and control signals with the terminal 100.
  • the terminal 100 includes a transmitter 110 and a receiver 120.
  • the transmitter 110 transmits a message related to carrier management to the base station 200, and includes a change request unit 111, a change unit 112, a command response unit 113, and a scanning processor 114.
  • the change request unit 111 requests the base station 200 to change the primary carrier or to change the activation and deactivation states of the secondary carrier. This change request is delivered through a carrier change request (hereinafter referred to as 'AAI_CC_REQ') message.
  • 'AAI_CC_REQ' carrier change request
  • the changer 112 changes the primary carrier or changes the activated and deactivated states of the secondary carrier according to the command of the base station 200.
  • the command response unit 113 receives a main carrier change command or a secondary carrier activation and deactivation state change command from the base station 200, and then transmits a completion response to the related operation to the base station 200. This response is delivered through a carrier change indication (hereinafter referred to as 'AAI_CC_IND') message.
  • 'AAI_CC_IND' carrier change indication
  • the scanning processor 114 requests to scan the corresponding carrier when the carrier to be changed to the primary carrier is in an inactive state, or reports the scanning result to the base station 200. Such a request is transmitted through a scanning request (hereinafter referred to as 'AAI_SCN_REQ') message, and the scanning result is transmitted through a scanning report (hereinafter referred to as 'AAI_SCN_REP') message.
  • 'AAI_SCN_REQ' a scanning request
  • 'AAI_SCN_REP' scanning report
  • the receiver 120 receives a change command of the primary carrier or an enable and disable state change command of the secondary carrier from the base station 200. In addition, the receiver 120 may receive a scanning response to the scanning request from the base station 200.
  • the base station management apparatus 201 is a part included in the base station 200 and manages carrier operation of the base station.
  • the base station management device 201 includes a transmitter 211 and a receiver 212.
  • the transmitter 211 includes a change command unit 213 and a scanning processor 214.
  • the change command unit 213 commands the terminal 100 to change the primary carrier or to change the activation and deactivation states of the secondary carrier. This command is transmitted through a carrier management command (hereinafter, referred to as 'AAI_CC_CMD') message.
  • 'AAI_CC_CMD' carrier management command
  • the scanning processor 214 transmits a scanning response to the scanning request from the terminal 100. This response is delivered through a scanning response (hereinafter referred to as 'AAI_SCN_RSP') message.
  • the receiver 212 receives an AAI_CC_REQ message, an AAI_CC_IND message, an AAI_SCN_REQ message, and an AAI_SCN_REP message from the terminal 100.
  • FIG. 4 is a flowchart illustrating a method of changing a primary carrier according to an embodiment of the present invention.
  • the terminal 100 and the base station 200 transmits and receives a control signal (S411). Then, the terminal 100 makes a carrier change request for changing the primary carrier from the serving primary carrier (SC) to the target primary carrier (TC) as necessary (S412). Step S412 is performed through an AAI_CC_REQ message.
  • the AAI_CC_REQ message may include a candidate carrier list for the target primary carrier (TC).
  • Step S413 is performed through an AAI_CM_CMD message.
  • the AAI_CM_CMD message includes a target primary carrier index field, an indication of the next state of serving primary carrier field, an action time (AT) field, and a ranging indicator ( ranging indicator) field.
  • the next state indication of the serving primary carrier is always set to '0'.
  • the operation time (AT) means a time when the terminal 100 changes to a target main carrier and a time to be ready to communicate through the target main carrier. If the 'next state indication field of the serving primary carrier' is set to '1', the previous primary carrier remains active as a secondary carrier even after the change. If the 'next state indication field of the serving primary carrier' is set to '0', the previous primary carrier is deactivated after the primary carrier change procedure.
  • the new 'target primary carrier index field' of the previous primary carrier is automatically assigned to the previous 'target primary carrier index field' of the new primary carrier.
  • the terminal 100 may complete preparation of receiving data and control information on the target primary carrier until the time indicated by the operation time field, and the terminal 100 may lane according to the ranging indicator field if necessary before the time indicated by the operation time field. Gong can be performed.
  • the AAI_CM_CMD message may be used for a purpose other than the message for the primary carrier change.
  • the action code field included in the AAI_CM_CMD message is set to '1', the AAI_CM_CMD message is used for the primary carrier change. It is available.
  • the terminal 100 changes the main carrier from the current main carrier SC to the target main carrier TC at the operation time AT.
  • the terminal 100 transmits an MSG acknowledgment for the carrier change command to the base station 200 (S414).
  • Step S415 is conveyed through the AAI_CC_IND message.
  • the base station 200 recognizes that the main carrier change procedure is completed by receiving the AAI_CC_IND message.
  • the terminal 100 and the base station 200 transmit and receive a control signal through the target main carrier TC (S416).
  • the terminal 100 may transmit a bandwidth request message having a zero required bandwidth size to the base station 200.
  • the base station 200 receives the band request message from the terminal through the target main carrier TC, the base station 200 considers that the change is completed to the target main carrier TC and uses the target main carrier TC to transmit data and the data of the terminal 100.
  • the control signal can be transmitted.
  • the procedure as shown in FIG. 4 is a case where any one of activated secondary carriers of the terminal 100 is used as a target primary carrier (TC).
  • the target primary carrier (TC) is limited to a carrier on which all control channels are fully configured to enable independent wireless access among the assigned carriers negotiated between the terminal 100 and the base station 200.
  • FIG. 5 is a flowchart illustrating a method of changing a primary carrier according to another embodiment of the present invention.
  • the terminal 100 and the base station 200 transmit and receive control signals (S511). Then, the terminal 100 transmits a carrier change request for changing the primary carrier from the serving primary carrier to the target primary carrier as necessary (S512). Step S512 is performed through an AAI_CC_REQ message.
  • the target main carrier TC is a deactivated carrier
  • channel measurement may be performed on the deactivated target main carrier TC before the change of the main carrier.
  • the base station 200 transmits a scanning command to the terminal 100 through an AAI_SCN_RSP message (S513).
  • the AAI_SCN_RSP message includes a list of carriers requiring channel measurement information, and the list of carriers may be a subset of the inactive carrier of the terminal 100.
  • the terminal 100 sends a request to the base station 200 to stop the other communication and perform scanning through the AAI_SCN_REQ message to the base station 200 (S514).
  • the base station 200 transmits a response to the terminal 100 through the AAI_SCN_RSP message (S515).
  • the terminal 100 transmits a report on the scanning result to the base station 200 through an AAI_SCN_REP message (S516).
  • the base station 200 may determine whether to change the primary carrier through the report on the scanning result.
  • the base station 200 issues a carrier change command to the terminal 100 through an AAI_CM_CMD message (S517), and the terminal 100 confirms receipt of a carrier change command to the base station 200 ( MSG acknowledgment (S518), the terminal 100 transmits a carrier change indication to the base station 200 through the AAI_CC_IND message (S518), the terminal 100 and the base station 200 has changed the target primary carrier (TC) And transmits and receives a control signal (S519).
  • MSG acknowledgment MSG acknowledgment
  • the terminal 100 transmits a carrier change indication to the base station 200 through the AAI_CC_IND message (S518)
  • the terminal 100 and the base station 200 has changed the target primary carrier (TC) And transmits and receives a control signal (S519).
  • FIG. 6 is a flowchart illustrating a method of changing a state of an auxiliary carrier according to an embodiment of the present invention.
  • the terminal 100 and the base station 200 transmits and receives a control signal (S611). Then, the terminal 100 makes a request for changing a carrier activation and deactivation state to the base station 200 as necessary (S612). Step S612 is performed through an AAI_CC_REQ message.
  • Step S613 is performed through an AAI_CM_CMD message.
  • the AAI_CM_CMD message includes a physical carrier index of the target secondary carrier field, a logical carrier index of the target secondary carrier field, a ranging indicator, and a ranging indicator. It may include an action time. If a dedicated ranging code is included in the AAI_CM_CMD message, ranging is performed using the secondary carrier to be activated using the dedicated ranging code. In this case, the fixed ranging code of the base station 200 may be used as a means for confirming that activation of the secondary carrier has been successfully completed.
  • the terminal 100 transmits an MSG acknowledgment for a carrier change command to the base station 200 (S614).
  • the terminal 100 transmits a carrier activation and deactivation state change indication to the base station 200 through an AAI_CC_IND message.
  • the terminal 100 and the base station 200 transmit and receive control signals (S616).
  • FIG. 7 is a flowchart illustrating a method of changing an activation state and an inactivation state of a secondary carrier according to another embodiment of the present invention.
  • the terminal 100 and the base station 200 transmit and receive control signals (S711). Then, the terminal 100 requests the base station 200 to change the secondary carrier activation and deactivation state of the AAI_CC_REQ message (S712).
  • the base station 200 transmits a scanning command to the terminal 100 through an AAI_SCN_RSP message (S713).
  • the terminal 100 transmits a request for stopping other communication and performing scanning to the base station 200 to the base station 200 through an AAI_SCN_REQ message (S714). Then, the base station 200 transmits a response to the terminal 100 through the AAI_SCN_RSP message (S715). The terminal 100 transmits a report on the scanning result to the base station 200 through an AAI_SCN_REP message (S716).
  • the base station 200 commands a secondary carrier activation and deactivation state change command to the terminal 100 through an AAI_CM_CMD message (S717), and the terminal 100 acknowledges a carrier change command to the base station 200 (MSG acknowledgement). (S718), the terminal 100 transmits a secondary carrier activation and deactivation state change indication to the base station 200 through the AAI_CC_IND message (S719), the terminal 100 and the base station 200 transmits and receives a control signal (S720).

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/KR2010/002677 2009-04-28 2010-04-28 기지국의 반송파 관리 장치, 반송파 관리 방법, 단말 및 단말의 반송파 관리 방법 Ceased WO2010126298A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10769943.1A EP2426834B1 (en) 2009-04-28 2010-04-28 Carrier management apparatus for a base station, carrier management method, mobile station, and carrier management method for mobile station
US13/266,919 US9877249B2 (en) 2009-04-28 2010-04-28 Device, method for managing carrier of base station, terminal and method for managing carrier thereof
CN201080029070XA CN102804644A (zh) 2009-04-28 2010-04-28 用于基站的载波管理设备、载波管理方法、移动站、以及用于移动站的载波管理方法
JP2012508399A JP5714566B2 (ja) 2009-04-28 2010-04-28 基地局の搬送波管理装置、搬送波管理方法、端末および端末の搬送波管理方法

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20090037203 2009-04-28
KR10-2009-0037203 2009-04-28
KR10-2009-0080434 2009-08-28
KR20090080434 2009-08-28
KR10-2010-0039355 2010-04-28
KR1020100039355A KR101472572B1 (ko) 2009-04-28 2010-04-28 기지국의 반송파 관리 장치, 반송파 관리 방법, 단말 및 단말의 반송파 관리 방법

Publications (2)

Publication Number Publication Date
WO2010126298A2 true WO2010126298A2 (ko) 2010-11-04
WO2010126298A3 WO2010126298A3 (ko) 2011-01-27

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Country Status (7)

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US (1) US9877249B2 (enExample)
EP (1) EP2426834B1 (enExample)
JP (1) JP5714566B2 (enExample)
KR (1) KR101472572B1 (enExample)
CN (1) CN102804644A (enExample)
TW (1) TW201127111A (enExample)
WO (1) WO2010126298A2 (enExample)

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JP2013500671A (ja) * 2009-07-28 2013-01-07 エルジー エレクトロニクス インコーポレイティド 多重搬送波支援広帯域無線通信システムにおいて搬送波管理手順を行う方法及び装置

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FR3033109B1 (fr) * 2015-02-19 2017-02-24 Commissariat Energie Atomique Procede de transmission d'un plan de frequences dans un systeme de telecommunication
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WO2023000329A1 (zh) * 2021-07-23 2023-01-26 北京小米移动软件有限公司 载波切换方法、装置、终端设备及可读存储介质

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KR101472572B1 (ko) 2014-12-17
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WO2010126298A3 (ko) 2011-01-27
JP2012525758A (ja) 2012-10-22
EP2426834A2 (en) 2012-03-07
EP2426834B1 (en) 2017-11-08
JP5714566B2 (ja) 2015-05-07
TW201127111A (en) 2011-08-01
US20120051309A1 (en) 2012-03-01
US9877249B2 (en) 2018-01-23
EP2426834A4 (en) 2015-06-24

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