WO2012173398A2 - 아이들 모드에서의 동작 방법 및 m2m 기기 - Google Patents
아이들 모드에서의 동작 방법 및 m2m 기기 Download PDFInfo
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- WO2012173398A2 WO2012173398A2 PCT/KR2012/004687 KR2012004687W WO2012173398A2 WO 2012173398 A2 WO2012173398 A2 WO 2012173398A2 KR 2012004687 W KR2012004687 W KR 2012004687W WO 2012173398 A2 WO2012173398 A2 WO 2012173398A2
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- idle mode
- message
- base station
- dreg
- fmdid
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/06—De-registration or detaching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to wireless communication, and more particularly, to a method and apparatus for operating in idle mode for M2M (Machine To Machine) communication in a wireless communication system.
- M2M Machine To Machine
- Machine to machine (M2M) communication is a form of data communication that includes one or more entities that do not require human interaction, also called machine type communication (MTC). That is, M2M communication refers to a concept in which a mechanical device, not a terminal used by humans, communicates using an existing wireless communication network. Mechanical devices used for M2M communication may be referred to as M2M devices, and the M2M devices are various, such as vending machines and machines for measuring the water level of dams.
- M2M communications offers different market scenarios, data communications, low cost and effort, potentially a very large number of M2M devices, wide coverage area and low traffic per M2M device. It may be characterized as.
- the mobile communication network provides an idle mode, which is a low power mode, to reduce power consumption of the terminal.
- the operation of the existing idle mode may not be optimized for the M2M device.
- one of the characteristics of M2M devices is to be fixed. Therefore, the existing idle mode operation considering the wide movement of the terminal is not optimized for the M2M device. Operation in idle mode is required to reduce signaling overhead and obtain increased power save.
- the present invention provides a method for operating in an idle mode that can be paged in the area of the base station and an M2M device using the same.
- a method of operating a machine-to-machine (M2M) device in an idle mode receives a DREG-RSP (deregistration-response) message from a base station, wherein the DREG-RSP message includes a fixed M2M deregistration identifier (FMDID), and the FMDID identifies the M2M device in the area of the base station.
- FMDID M2M deregistration identifier
- a 16-bit identifier that identifies the M2M device entering an idle mode, and wherein the M2M device in the idle mode monitors a paging advertisement (PAG-ADV) message from the base station, wherein the PAG-ADV message Includes the FMDID.
- PAG-ADV paging advertisement
- the method may further include the M2M device transmitting a DREG-REQ message to the base station.
- the DREQ-RSP message may be received in response to the DREQ-REQ message.
- the DREG-REQ message may be transmitted in response to the DREQ-RSP message.
- the DREQ-RSP message may include a mode flag indicating that the M2M device enters a normal idle mode or a local idle mode.
- the M2M device may enter the local idle mode.
- the FMDID may be included in the DREG-RSP message.
- a device for machine to machine (M2M) communication includes a radio frequency (RF) unit for transmitting a radio signal and a processor coupled to the RF unit, wherein the processor is a DREG-RSP (deregistration-response) from a base station.
- RF radio frequency
- the processor is a DREG-RSP (deregistration-response) from a base station.
- DREG-RSP deregistration-response
- the DREG-RSP message includes a fixed M2M deregistration identifier (FMDID), wherein the FMDID is a 16-bit identifier that identifies the device in the area of the base station, enters an idle mode, and the base station Monitor a paging advertisement (PAG-ADV) message from the PAG-ADV message that includes the FMDID.
- PAG-ADV paging advertisement
- the base station for M2M communication includes a radio frequency (RF) unit for transmitting a radio signal, and a processor connected to the RF unit, wherein the processor transmits a DREG-RSP (deregistration-response) message to the M2M device.
- the DREG-RSP message includes a fixed M2M deregistration identifier (FMDID), wherein the FMDID is a 16-bit identifier for identifying the M2M device in the area of the base station, and a PAG to the M2M device in the idle mode.
- FMDID fixed M2M deregistration identifier
- ADV paging advertisement
- Signaling overhead can be reduced when operating in idle mode.
- M2M machine to machine
- FIG 3 illustrates an idle mode operation according to an embodiment of the present invention.
- FIG 4 illustrates an idle mode operation according to another embodiment of the present invention.
- FIG. 5 is a block diagram illustrating a wireless communication system in which an embodiment of the present invention is implemented.
- M2M machine to machine
- the M2M communication allows the exchange of information between the M2M devices 11 and 12 via the base station 15 without human interaction or the exchange of information between the M2M device 11 and the M2M server 18 via the base station. Say.
- the M2M server 18 is an entity that communicates with the M2M device 11.
- the M2M server executes an M2M application and provides an M2M specific service to the M2M device 11.
- the M2M device 11 is a wireless device that provides M2M communication and may be fixed or mobile.
- Services provided through M2M communication are different from those in existing human-involved communication, and various categories of services such as tracking, metering, payment, medical service, and remote control Is present.
- Time controlled characteristic This means that the M2M device transmits or receives data only in a predetermined specific interval. Therefore, unnecessary signaling outside a predetermined specific section can be prevented.
- Time Tolerant Characteristics This means that M2M devices can delay data delivery.
- the network operator restricts the connection of the M2M device to the network or the transmission of data to another MTC device when the load of the network is greater than the predetermined load threshold, and the data of the data that the MTC device can deliver in a specific area. You can dynamically limit the amount.
- Offline indication characteristic This is a requirement to notify the M2M device in a timely manner when signaling between the M2M device and the network is no longer possible.
- PAM Priority Alarm Message
- M2M Group Identifier M2M Group Identifier
- the MGID is a 12-bit identifier used to uniquely identify a multicast service flow shared by a group of M2M devices in an M2M group zone.
- An M2M group zone is a logical area that includes one or more base stations.
- the M2M group region is identified by the M2M group region index.
- the MGID is assigned during the dynamic service addition (DSA) process. The M2M device maintains the MGID even in idle mode unless it exits the network or the service flow is deleted.
- DSA dynamic service addition
- the wireless communication system to which the present invention is applied is not limited to the IEEE 802.16m based system, but may be applied to various wireless communication systems such as 3GPP (3rd Generation Partnership Project) long term evolution (LTE).
- 3GPP 3rd Generation Partnership Project
- LTE long term evolution
- the mobile station receives a paging group identification (PGID) message from a base station (BS) (S210).
- PID paging group identification
- the PGID message is used to advertise the paging group supported by the base station.
- the PGID message includes the PGID to which the base station belongs.
- the hash parameter 'm' is used by the terminal to determine a paging frame for monitoring a paging message.
- the index of the paging frame is the index of the super frame that satisfies the expression 'DID (deregistration identifier) mod m'.
- the terminal that wants to enter the idle mode sends a DREQ-REQ message to the base station (S220).
- the action code value of the DREQ-REQ message may be '0x01', and an example of the format of the DREQ-REQ message is as follows.
- the base station sends a DREG-RSP (deregistration-response) message in response to the DREG-REQ message (S230).
- DREG-RSP registration-response
- the action code value of the DREQ-RSP message may be '0x07', and an example of the format of the DREQ-RSP message is as follows.
- the DID is an identifier for identifying the terminal in the idle mode in the corresponding paging group and is assigned by the PC.
- the terminal receiving the DREG-RSP message enters the idle mode (S240).
- the conventional idle mode operation as described above assumes that idle mode information is managed for each paging group by a PC in consideration of mobility of a terminal.
- Fixed M2M devices are not mobile and do not need to be managed by page group.
- at least 82 bits of identifiers (48 bits of PC ID, 16 bits of PG ID, 18 bits of DID) need to be exchanged in order to manage the UE for each paging group.
- a base station not a PC, perform paging management of a fixed M2M device. Since the M2M device operates in the idle mode in the area of the base station, it is proposed to assign a unique identifier to the M2M device in the area of the base station.
- FIG 3 illustrates an idle mode operation according to an embodiment of the present invention. This is an example in which the M2M device enters idle mode at the request of the M2M device.
- the M2M device transmits a DREG-REQ message to the base station (S310).
- the M2M device transmits a DREQ-REQ message having an action code of '0x01' and a mode flag of '1' to the base station.
- the mode flag indicates a normal idle mode or a localized idle mode.
- the idle mode operation is managed by the PC as in the conventional technology.
- Local idle mode is where idle mode operation is managed by a base station.
- the base station transmits a DREG-RSP message in response to the DREG-REQ message to the M2M device (S320).
- Fixed M2M Deregistration Identifier is a 16-bit identifier used to uniquely identify an M2M device in the area of a base station.
- the FMDID is assigned to the M2M device during idle mode entry and released during network reentry.
- the number of bits of the FMDID may be smaller than the number of bits of the DID, which is an identifier in the paging group. Although the number of bits of the FMDID is illustrated as 16, the number of bits may be smaller than 16.
- the base station may send a DREQ-RSP message including the action code '0x07', the mode flag '1', and the FMDID to the M2M device.
- the base station may not inform the PC that the M2M device enters the idle mode.
- the M2M device After receiving the DREQ-RSP message, the M2M device may enter a local idle mode (S330). On the other hand, the M2M device receiving the DREQ-RSP message with the mode flag '0' may enter the normal idle mode.
- the M2M device monitors the reception of a paging-advertisement (PAG-ADV) message (S340).
- the index of the paging frame may be an index of the super frame that satisfies the expression 'FMDID mod m'.
- the PAG-ADV message may include an FMDID.
- the AG-ADV message may include group MGID to perform group paging.
- the PC ID and the PG ID are not included in the DREQ-RSP message, thereby reducing the payload of the DREG-RSP message.
- the PC ID and the PG ID are not included in the DREQ-RSP message, thereby reducing the payload of the DREG-RSP message.
- the PC ID and the PG ID are not included in the DREQ-RSP message, thereby reducing the payload of the DREG-RSP message.
- a 16-bit FMDID instead of an 18-bit DID
- FIG. 4 illustrates an idle mode operation according to another embodiment of the present invention. Compared with the embodiment of FIG. 3, this is an example in which the M2M device enters the idle mode by the instruction of the base station.
- the base station transmits a DREG-RSP message instructing entry into the idle mode to the M2M device (S410).
- the DREG-RSP message includes action code '0x05', mode flag '1', and FMDID.
- the M2M device transmits a DREG-REQ message to the base station in response to the REG-RSP message (S420). As the REG-REQ message is transmitted, the M2M device enters an idle mode (S430). When the M2M device enters the local idle mode, the mode flag of the DREG-REQ message is set to '1'. When the M2M device enters the normal idle mode, the mode flag of the DREG-REQ message is set to '0'.
- the M2M device monitors the reception of the PAG-ADV message (S440).
- the base station 50 includes a processor 51, a memory 52, and an RF unit 53.
- the memory 52 is connected to the processor 51 and stores various information for driving the processor 51.
- the RF unit 53 is connected to the processor 51 and transmits and / or receives a radio signal.
- the processor 51 implements the proposed functions, processes and / or methods. 3 and 4, the operation of the base station may be implemented by the processor 51.
- the processor 51 sends a DREG-RSP message and / or a PAG-ADV message.
- the M2M device 60 includes a processor 61, a memory 62, and an RF unit 63.
- the memory 62 is connected to the processor 61 and stores various information for driving the processor 61.
- the RF unit 63 is connected to the processor 61 and transmits and / or receives a radio signal.
- the processor 61 implements the proposed functions, processes and / or methods. 3 and 4, the operation of the M2M device may be implemented by the processor 61.
- Processor 61 sends a DREG-REQ message and monitors the PAG-ADV message.
- the processor may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and / or data processing devices.
- the memory may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and / or other storage device.
- the RF unit may include a baseband circuit for processing a radio signal.
- the above-described technique may be implemented as a module (process, function, etc.) for performing the above-described function.
- the module may be stored in memory and executed by a processor.
- the memory may be internal or external to the processor and may be coupled to the processor by various well known means.
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Abstract
Description
필드 | 크기(비트) | 설명 |
For(i=0; i<Num_PGIDs; i++) { | ||
PGID | 16 | 기지국이 속한 페이징 그룹의 식별자 |
m | 2 | 해쉬 파라미터 (1~4) |
} |
필드 | 크기(비트) | 설명 |
액션 코드 | 3 | 이 메시지의 목적을 지시하는 데 사용.0x01 : 아이들 모드 개시 요청 |
페이징 사이클 요청 (paging cycle request) | 4 | 단말에 의해 요청되는 페이징 사이클 |
필드 | 크기(비트) | 설명 |
액션코드 | 4 | 이 메시지의 목적을 지시하는 데 사용.0x07 : DREG-REQ에 대한 응답 |
페이징 사이클 | 4 | |
페이징 오프셋 | 12 | |
PC ID | 48 | 단말의 아이들 모드 정보를 보유한(retain) PC(paging controller)의 식별자 |
PG ID | 16 | 단말이 위치한 PG(paging group)의 식별자 |
DID | 18 | 단말을 식별하기 위한 식별자 |
필드 | 크기(비트) | 설명 |
액션코드 | 3 | 이 메시지의 목적을 지시하는 데 사용.0x01 : 아이들 모드의 개시의 요청0x02 : 기지국에 의한 DREG-RSP에 대한 응답 |
모드 플래그(mode flag) | 1 | 0: M2M 기기가 정규 아이들 모드로 진입1: M2M 기기가 로컬 아이들 모드로 진입 |
필드 | 크기(비트) | 설명/조건 |
액션코드 | 4 | 이 메시지의 목적을 지시하는 데 사용.0x05 : M2M 기기에게 아이들 모드 개시를 지시0x07 : DREG-REQ에 대한 응답 |
모드 플래그 | 1 | 0:M2M 기기가 정규 아이들 모드로 진입1:M2M 기기가 로컬 아이들 모드로 진입 |
페이징 사이클 | 4 | |
페이징 오프셋 | 12 | |
PC ID | 48 | 정규 아이들 모드일때 존재 |
PG ID | 16 | 정규 아이들 모드일때 존재 |
DID | 18 | 정규 아이들 모드일때 존재 |
FMDID | 16 | 로컬 아이들 모드일때 존재 |
Claims (15)
- 아이들 모드에서 M2M(machine-to-machine) 기기의 동작 방법에 있어서,M2M 기기가 기지국으로부터 DREG-RSP(deregistration-response) 메시지를 수신하되, 상기 DREG-RSP 메시지는 FMDID(fixed M2M deregistration identifier)를 포함하고, 상기 FMDID는 상기 기지국의 영역에서 상기 M2M 기기를 식별하는 16비트 식별자이고;상기 M2M 기기가 아이들 모드로 진입하고; 및상기 아이들 모드의 상기 M2M 기기가 상기 기지국으로부터의 PAG-ADV(paging advertisement) 메시지를 모니터링하는 것을 포함하되, 상기 PAG-ADV 메시지는 상기 FMDID를 포함하는 것을 특징으로 하는 동작 방법.
- 제 1 항에서, 상기 M2M 기기가 상기 기지국으로 DREG-REQ(deregistration-request) 메시지를 전송하는 것을 더 포함하는 것을 특징으로 하는 동작 방법.
- 제 2 항에서, 상기 DREQ-RSP 메시지는 상기 DREQ-REQ 메시지의 응답으로써 수신되는 것을 특징으로 하는 동작 방법.
- 제 2 항에서, 상기 DREG-REQ 메시지는 상기 DREQ-RSP 메시지의 응답으로써 전송되는 것을 특징으로 하는 동작 방법.
- 제 1 항에서, 상기 DREQ-RSP 메시지는 상기 M2M 기기가 정규 아이들 모드 또는 로컬 아이들 모드로 진입하는 것을 지시하는 모드 플래그를 포함하는 것을 특징으로 하는 동작 방법.
- 제 5 항에서, 상기 모드 플래그가 '1'이면 상기 M2M 기기가 상기 로컬 아이들 모드로 진입하는 것을 특징으로 하는 동작 방법.
- 제 6 항에서, 상기 M2M 기기가 상기 로컬 아이들 모드로 진입할 때 상기 FMDID가 상기 DREG-RSP 메시지에 포함되는 것을 특징으로 하는 동작 방법.
- 제 7 항에서, 상기 M2M 기기가 상기 정규 아이들 모드로 진입할 때, 상기 DREG-RSP 메시지는 PC(paging controller) 식별자, 페이징 그룹 식별자 및 DID(deregistration identifier)를 포함하는 것을 특징으로 하는 동작 방법.
- 제 1 항에서, 상기 PAG-ADV 메시지는 네트워크 재진입의 수행을 지시하는 액션코드를 포함하도, 상기 FMDID는 상기 네트워크 재진입 동안 해제되는 것을 특징으로 하는 동작 방법.
- M2M(Machine To Machine) 통신을 위한 기기에 있어서,무선 신호를 송신하는 RF(radio frequency)부; 및상기 RF부와 연결되는 프로세서를 포함하되, 상기 프로세서는기지국으로부터 DREG-RSP(deregistration-response) 메시지를 수신하되, 상기 DREG-RSP 메시지는 FMDID(fixed M2M deregistration identifier)를 포함하고, 상기 FMDID는 상기 기지국의 영역에서 상기 기기를 식별하는 16비트 식별자이고;아이들 모드로 진입하고; 및상기 기지국으로부터의 PAG-ADV(paging advertisement) 메시지를 모니터링하되, 상기 PAG-ADV 메시지는 상기 FMDID를 포함하는 것을 특징으로 하는 기기.
- 제 10 항에서, 상기 프로세서는 상기 기지국으로 DREG-REQ(deregistration-request) 메시지를 전송하는 것을 특징으로 하는 기기.
- 제 10 항에서, 상기 DREQ-RSP 메시지는 상기 기기가 정규 아이들 모드 또는 로컬 아이들 모드로 진입하는 것을 지시하는 모드 플래그를 포함하는 것을 특징으로 하는 기기.
- 제 12 항에서, 상기 모드 플래그가 '1'이면 상기 기기가 상기 로컬 아이들 모드로 진입하고,상기 기기가 상기 로컬 아이들 모드로 진입할 때 상기 FMDID가 상기 DREG-RSP 메시지에 포함되는 것을 특징으로 하는 기기.
- M2M(Machine To Machine) 통신을 위한 기지국에 있어서,무선 신호를 송신하는 RF(radio frequency)부; 및상기 RF부와 연결되는 프로세서를 포함하되, 상기 프로세서는M2M 기기로 DREG-RSP(deregistration-response) 메시지를 전송하되, 상기 DREG-RSP 메시지는 FMDID(fixed M2M deregistration identifier)를 포함하고, 상기 FMDID는 상기 기지국의 영역에서 상기 M2M 기기를 식별하는 16비트 식별자이고; 및상기 아이들 모드의 상기 M2M 기기로 PAG-ADV(paging advertisement) 메시지를 전송하되, 상기 PAG-ADV 메시지는 상기 FMDID를 포함하는 것을 특징으로 하는 기지국.
- 제 14 항에서, 상기 DREQ-RSP 메시지는 상기 M2M 기기가 정규 아이들 모드 또는 로컬 아이들 모드로 진입하는 것을 지시하는 모드 플래그를 포함하는 것을 특징으로 하는 기지국.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137027336A KR20140022387A (ko) | 2011-06-15 | 2012-06-14 | 아이들 모드에서의 동작 방법 및 m2m기기 |
CN201280029365.6A CN103797728B (zh) | 2011-06-15 | 2012-06-14 | 在空闲模式中操作的方法和m2m设备 |
US14/118,827 US9155042B2 (en) | 2011-06-15 | 2012-06-14 | Method for operating in idle mode and M2M apparatus |
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US201161497496P | 2011-06-15 | 2011-06-15 | |
US61/497,496 | 2011-06-15 | ||
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US61/503,618 | 2011-07-01 | ||
US201161506146P | 2011-07-10 | 2011-07-10 | |
US61/506,146 | 2011-07-10 | ||
US201161509545P | 2011-07-19 | 2011-07-19 | |
US61/509,545 | 2011-07-19 |
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WO2012173398A2 true WO2012173398A2 (ko) | 2012-12-20 |
WO2012173398A3 WO2012173398A3 (ko) | 2013-03-14 |
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KR (1) | KR20140022387A (ko) |
CN (1) | CN103797728B (ko) |
WO (1) | WO2012173398A2 (ko) |
Cited By (1)
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WO2016056839A1 (ko) * | 2014-10-07 | 2016-04-14 | 엘지전자 주식회사 | 무선 통신 시스템에서 m2m 단말의 동작 방법 |
Families Citing this family (3)
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US9503999B2 (en) * | 2013-06-07 | 2016-11-22 | Nokia Solutions And Networks Oy | Service continuity in centralized service network system |
CN104918221B (zh) * | 2014-03-14 | 2019-03-15 | 中兴通讯股份有限公司 | 终端外设的注册、注销、待机处理方法及系统 |
CN118019088A (zh) * | 2022-11-10 | 2024-05-10 | 华为技术有限公司 | 通信方法及装置 |
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KR20090117570A (ko) * | 2008-05-08 | 2009-11-12 | 엘지전자 주식회사 | 페이징 방법 |
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2012
- 2012-06-14 US US14/118,827 patent/US9155042B2/en not_active Expired - Fee Related
- 2012-06-14 KR KR1020137027336A patent/KR20140022387A/ko not_active Application Discontinuation
- 2012-06-14 WO PCT/KR2012/004687 patent/WO2012173398A2/ko active Application Filing
- 2012-06-14 CN CN201280029365.6A patent/CN103797728B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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KR20140022387A (ko) | 2014-02-24 |
CN103797728B (zh) | 2017-04-19 |
US9155042B2 (en) | 2015-10-06 |
CN103797728A (zh) | 2014-05-14 |
WO2012173398A3 (ko) | 2013-03-14 |
US20140113626A1 (en) | 2014-04-24 |
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