WO2008056411A1 - Appareil de station de base, équipement utilisateur et procédé utilisé dans un système de communication mobile effectuant un transfert interbande - Google Patents
Appareil de station de base, équipement utilisateur et procédé utilisé dans un système de communication mobile effectuant un transfert interbande Download PDFInfo
- Publication number
- WO2008056411A1 WO2008056411A1 PCT/JP2006/322281 JP2006322281W WO2008056411A1 WO 2008056411 A1 WO2008056411 A1 WO 2008056411A1 JP 2006322281 W JP2006322281 W JP 2006322281W WO 2008056411 A1 WO2008056411 A1 WO 2008056411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- base station
- channel measurement
- frequency
- handover
- Prior art date
Links
Classifications
-
- 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
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- 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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Definitions
- Base station apparatus user apparatus and method used in mobile communication system for performing inter-band handover
- the present invention relates to the technical field of mobile communication, and more particularly to a base station apparatus, user apparatus, and method used in a mobile communication system that performs interband handover.
- OFDM orthogonal frequency division multiplexing
- SC-FDMA Single-Carrier Frequency Division Multiple
- PAPR peak-to-average power ratio
- the radio resource power for both the uplink and the downlink is appropriately allocated according to the communication status of each user in the form of a channel (shared channel) shared among a plurality of users.
- the process of determining the allocation content is called scheduling.
- each user apparatus transmits a pilot channel to the base station, and the base station evaluates the uplink channel state based on the reception quality.
- the base station transmits a pilot channel to the user equipment, and the user equipment transmits information indicating the channel state (CQI: Channel Quality Indicator) based on the reception quality of the pilot channel.
- CQI Channel Quality Indicator
- FIG. 1 shows a conceptual diagram of such a mobile communication system.
- This system consists of an access gateway aGW connected to the host device and a base station connected to the access gateway aGW.
- eNB and user equipment UE (User Equipment) that performs radio communication with the base station eNB.
- S1 represents an interface between the access gateway aGW and the base station eNB.
- X2 represents the interface between base stations.
- User equipment UE can switch cells while continuing communication by performing handover (HO).
- HO handover
- FIG. 2 is a diagram schematically showing how three communication bands are prepared in the system.
- communication is performed with a communication frequency bandwidth of 20 MHz, 10 MHz, or 5 MHz.
- CCH represents a band occupied by the common control signal.
- the CCH contains general information related to all user equipment in the cell.
- Channels for individual control signals (not shown in Fig. 2) are used for control information specific to individual user equipment.
- the transmission bandwidth of cell A is 20 MHz
- the reception bandwidth of user equipment UE located in cell A is 10 MHz
- user equipment UE is indicated by Bwl.
- Use the 10MHz bandwidth to communicate! In cell A not only 10MHz Bwl but also 10MHz Bw2 is supported.
- the user equipment UE may not be able to communicate with better quality by changing the bandwidth from Bwl to Bw2.
- the user equipment UE communicating with Bwl receives a channel measurement signal from the common control signal CCH transmitted in another band Bw2, and determines whether the reception quality is good or bad. It is necessary to decide whether or not to change the bandwidth (interband handover).
- the common control signal CCH is transmitted in a band including the boundary between Bwl and Bw2. Therefore, the user apparatus UE communicating with Bwl also acquires the frequency information of the channel measurement signal in Bw2 as well as the CCH power. And intended channel measurements can be made.
- This type of mobile communication system is disclosed in Non-Patent Documents 1 and 2, for example.
- the transmission bandwidth of cell B and cell C is 10 MHz
- the reception bandwidth of the user apparatus UE residing in cell B is also 10 MHz
- the user apparatus UE Communication is performed using the 10MHz band indicated by Bw1.
- Cell C uses Bw2 bandwidth ing.
- the user equipment UE may not be able to communicate with better quality by changing the bandwidth from Bwl to Bw2 and performing handover.
- the user equipment UE communicating with Bwl receives the channel measurement signal from the common control signal CCH transmitted in the separate band Bw2, and changes the band (interband bandwidth) depending on whether the reception quality is good or bad. It is necessary to decide whether to do it.
- the user equipment UE communicating with Bwl cannot obtain the frequency information of the channel measurement signal in Bw2 from CCH in Bwl! If the frequency information of the channel measurement signal in Bw2 is unknown, it may be difficult for the user apparatus UE to quickly perform interband handover.
- the user apparatus UE can always acquire the necessary information, There is also no power to quickly tune to the frequency and perform channel measurements in the destination cell.
- BCH broadcast signal
- there are relatively few radio resources for broadcast signals and it may be difficult to completely include information on channel measurement signals of all neighboring cells in the broadcast signal. Since the number of neighboring cells tends to increase as the cell radius shortens, the problem may become more serious.
- the handover destination cell does not necessarily belong to the same system.
- multiple heterogeneous systems may coexist in the same region, and services may be provided in neighboring cells by different operators and different vendors. Therefore, it may be difficult to predetermine the information of channel measurement signals in each cell in a unified manner.
- the power to transmit the common control signal CCH near the center of the system band may not be the force to transmit CCH at one end of the system band.
- Non-Patent Document 1 3GPP TR25.913 V7.3.0 (2006-03)
- Non-Patent Document 2 3GPP TR25.912
- An object of the present invention is to determine which frequency the user apparatus prepares for frequency band handover. This is simply notifying the user device of the force to be measured.
- a base station apparatus is used in a mobile communication system in which communication is performed using all or part of a system band.
- the base station apparatus receives a request signal for requesting an interband handover from a user apparatus, a means for transmitting an instruction signal to one or more neighboring base stations as handover destination candidates in response to the request signal, A means for receiving a response signal to the instruction signal from one or more neighboring base stations, and an individual control signal including at least frequency information of a channel measurement signal at a handover destination candidate, according to the response signal Means for transmitting to the apparatus.
- the channel measurement signal is transmitted at a frequency of the frequency information from one or more neighboring base stations.
- FIG. 1 shows a schematic diagram of a mobile communication system.
- FIG. 2 is a diagram showing an example of mapping of system bands and common control channels.
- FIG. 3 is an explanatory diagram for explaining problems in inter-band handover.
- FIG. 4 is a functional block diagram of a user apparatus according to an embodiment of the present invention.
- FIG. 5 shows a functional block diagram of a base station apparatus according to an embodiment of the present invention.
- FIG. 6 is a flowchart (part 1) of an operation example according to the first embodiment of the present invention.
- FIG. 7 is a flowchart (part 2) of an operation example according to the first embodiment of the present invention.
- FIG. 8 shows a flowchart of an operation example according to the second embodiment of the present invention.
- FIG. 9 A diagram schematically showing an example of CCH mapping.
- FIG. 10 A diagram schematically showing another mapping example of CCH.
- FIG. 11 shows a flowchart of an operation example according to the fourth embodiment of the present invention.
- communication is performed between the base station of the handover destination and the destination candidate in response to a hand-on request from the user apparatus UE, and channel measurement at the destination candidate is performed.
- the information about the signal for use is notified from the migration source to the user apparatus.
- Each of the transfer destination candidates wirelessly transmits a channel measurement signal in response to an instruction signal from the transfer source. By receiving this channel measurement signal, the user apparatus can perform channel measurement. Therefore, the base station of the transfer source can easily and appropriately notify the user apparatus of information necessary for channel measurement of another band without notifying the channel measurement signal information of all the transfer destination candidates.
- the frequency information of the channel measurement signal transmitted by each of the one or more neighboring base stations may be known before receiving the request signal, or may be unknown. If known, it is advantageous in that the response signal may not contain frequency information. What may be unknown is preferred because it allows accurate notification of appropriate frequency information in areas where systems of various operators coexist.
- the individual control signal may include transmission timing information including only frequency information of the channel measurement signal.
- the system band includes a plurality of frequency blocks, each frequency block includes a plurality of frequency resource blocks, and the base station apparatus has one or more frequency blocks determined for the user apparatus. You may allocate a frequency resource block to a user apparatus. In such a mobile communication system, it is particularly important to simplify interband handover from the viewpoint of effective use of radio resources.
- Information indicating the serving cell of the user apparatus may be included in the handover request signal. This is preferable because it can quickly determine the correspondence between the user equipment, the handover source base station, and the neighboring base stations.
- At least one neighboring base station searches for a radio resource of the channel measurement signal, and information indicating the radio resource determined by the search result may be included in the individual control signal.
- the channel measurement signal is, in principle, an intermittent predetermined period. It may be shown that it is transmitted wirelessly in between. Further, when the instruction signal is transmitted, the channel measurement signal may be exceptionally transmitted wirelessly even if it is not within an intermittent predetermined period. This is preferable from the viewpoint of promptly completing the handover.
- FIG. 4 shows a functional block diagram of a user apparatus (may be referred to as UE, MS, MH, etc.) according to an embodiment of the present invention.
- the user equipment shown in FIG. 4 is an example of a typical mobile terminal, but it may be a portable mobile station or a fixed terminal.
- the user apparatus includes a management function unit 402, a baseband processing unit 404, and an RF unit 406.
- the baseband processing unit 404 includes an audio interface unit 441, a baseband and RF control unit 442, an L1 modem and channel codec unit 443.
- the RF unit 406 includes an analog front end unit 461, a frequency synthesizer 462, a transmission unit (TX) 463, a power amplification unit ( ⁇ ) 464, a duplexer (DUP) 465 connected to an antenna, and a reception unit (RX) 466. To do.
- the management function unit 402 controls operations of the baseband processing unit 404 and the RF unit 406. Specifically, radio channel management, quality management, mobility management, etc. are performed. Channel measurement leading to inter-band handover, which will be described later, and creation of a handover request signal are also performed.
- the audio interface unit 441 of the baseband processing unit 404 is connected to the speaker and the microphone 444 and exhibits an interface function for exchanging audio signals.
- the baseband and RF control unit 442 appropriately adjusts the communication band.
- the L1 modem and channel codec unit 443 performs processing such as channel coding (error correction coding) and data modulation on information to be transmitted, and generates baseband transmission symbols.
- the L1 modem and the channel codec unit perform processing such as Fourier transform, data demodulation, channel decoding (error correction) on the received baseband signal, and restore the transmitted information.
- the analog front end unit 461 of the RF unit 406 performs processing such as digital analog conversion and band limitation on the baseband transmission signal.
- Analog front end 4 61 performs processing such as band limitation and analog-digital conversion on the received analog signal, and converts it into a baseband signal.
- the frequency synthesizer 462 provides a predetermined frequency to tune the transmitter to the transmit frequency and the receiver to the receive frequency.
- the transmission unit (TX) 463 performs orthogonal modulation of the transmission signal, frequency conversion to a radio frequency signal, and the like.
- the power amplifying unit (PA) 464 amplifies the power of the transmission signal to the antenna input level.
- the duplexer (DUP) 465 appropriately separates the transmission signal and the reception signal.
- Receiving section (RX) 466 performs processing such as orthogonal demodulation of the received signal and conversion to a baseband analog signal.
- FIG. 5 shows a functional block diagram of a base station (may be referred to as NodeB, eNB, BS, BTS, etc.) according to an embodiment of the present invention.
- the base station has a first function unit 510 and a second function unit 520.
- the first function unit 510 includes a call processing control function unit 511, a transmission path interface function unit 512, a baseband processing function unit 513, a peripheral base station information storage unit 514, and an interface function unit 51.
- the second function unit 520 includes an interface function unit 521 and a wireless transmission / reception function unit 522.
- the call processing control function unit 511 performs control related to call processing. Specifically, wireless channel management, physical line management, quality control, etc. are performed. Scheduling to plan the allocation contents of uplink and downlink radio resources is also performed here.
- the transmission path interface function unit 512 is connected to a host device or another base station 53 by wire (may be optical or electrical), and exhibits an interface function between the host device 53 and the base station.
- the baseband processing function unit 513 performs processing such as channel coding (error correction coding), data modulation, and inverse Fourier transform of a radio transmission signal.
- the baseband processing function unit 513 performs processing such as channel decoding (error correction) and data demodulation of a radio reception signal.
- Peripheral base station information storage unit 514 stores the correspondence between the device itself and the peripheral base station. If necessary, the peripheral base station information storage unit can measure the channel used by the neighboring base stations. You can also store signal information (frequency, transmission timing, etc.).
- the interface function unit 515 performs an interface function between the first function unit 510 and the second function unit 520. This interface function unit 515 is particularly advantageous when the first function unit and the second function unit are located far apart in place.
- the interface function unit 521 of the second function unit 520 exhibits an interface function between them.
- Radio transmission / reception function unit 522 performs processing such as digital-analog conversion and orthogonal modulation on the baseband transmission signal. Radio transmission / reception function unit 522 performs processing such as synchronous detection, quadrature demodulation, and analog-digital conversion on the received signal.
- the transmission amplifier 523 amplifies the power of the transmission signal to the antenna input level.
- the outdoor receiving amplifier 51 is composed of a low noise amplifier.
- the outdoor reception amplifier monitoring controller 52 monitors a signal received through the outdoor reception amplifier.
- step numbers in the 10th range indicate procedures performed or generated by the user equipment UE.
- Step numbers in the 20th range indicate procedures performed or issued by the handover source base station eNB # l.
- Step numbers in the 30s indicate procedures performed at the handover destination base station eNB # 2 or its power.
- Step numbers in the 40s indicate procedures performed at or issued by the access gateway aGW.
- step S1 of FIG. 6 a cell setup procedure is executed, and various parameter settings and the like are performed so that the base stations eNB # l and eNB # 2 are appropriately connected to a certain access gateway aGW. .
- the cell setup procedure is such that when the base station is newly or again started up, reset, when the bandwidth used is changed (for example, from 20 MHz to 10 MHz), the number of neighboring base stations has increased or decreased, etc. It may be done in some cases.
- step S41 information for the channel measurement signal (frequency and timing for cell search). ) From the access gateway aGW to the base stations eNB # l and eNB # 2.
- the channel measurement signal information is centrally managed by the access gateway aGW and determined at the time of cell setup.
- step S21 the base station eNB # l is notified of information (frequency and timing for cell search) indicating how to transmit the channel measurement signal, and the information is transmitted to the base station eNB # l. Is remembered.
- step S31 the base station eNB # 2 is notified of information (frequency and timing for cell search) indicating how the channel measurement signal should be transmitted, and the information is transmitted to the base station eNB # 2. Is remembered.
- Step S2 in Fig. 7 shows a call establishment state in which a call of a certain user equipment UE is generated. Accordingly, the user apparatus UE can perform radio communication by receiving radio resource allocation from a certain base station eNB # l.
- the base station eNB # 2 around a certain base station is involved in the communication of the user equipment UE at this point, but it is confirmed that they are neighboring base stations.
- the user apparatus UE measures the received signal quality while performing communication within the cell of the base station eNB # l, and when a predetermined handover event such as quality degradation occurs, a handover request signal indicating that Specifically, a measurement report message is created.
- step S11 the user apparatus UE transmits a handover request signal to the connected base station eNB # 1.
- the handover source base station eNB # l transmits a certain instruction signal to the neighboring base station eNB # 2 in response to the handover request signal.
- the instruction signal is a signal that instructs the neighboring base station to start wireless transmission of the channel measurement signal.
- the instruction signal may be transmitted to all the neighboring base stations, or may be transmitted only to some neighboring base stations in consideration of the position of the user equipment!
- the handover request signal is identification information for identifying the user equipment UEID and information indicating that a handover is required, as well as information indicating what cell the user equipment UE is in (the connected base station is eNB) It is preferable to include information indicating #l.
- User equipment UEID and hand It is also capable of quickly identifying the correspondence between the base base station eNB # l and the neighboring base station eNB # 2. Using this correspondence, information on channel measurement signals at each peripheral base station is included in the individual control signal described later. If the information indicating eNB # l is not included in the handover request, it is necessary to confirm that the user apparatus is a user apparatus in the own cell after receiving the handover request signal. Is the power to increase.
- step S32 a response signal to the instruction signal is transmitted from the neighboring base station eNB # 2 to the handover source base station eNB # l.
- step S23 radio resource scheduling is performed.
- the dedicated control signal is also used for notifying scheduling information indicating how to allocate uplink and downlink radio resources for transmission of user data signals.
- the source base station eNB # 1 avoids the frequency and timing of the channel measurement signal of the neighboring base station eNB # 2 so that the user apparatus UE can perform channel measurement by shifting to a frequency of another band.
- scheduling of radio resources for the user equipment is included as necessary, and is used in the handover destination cell (peripheral base station eNB # 2), including V and channel measurement signal information (frequency information, transmission timing information, etc.) A control signal is created.
- step S24 the dedicated control signal thus created is wirelessly transmitted from the handover source base station eNB # l to the user apparatus UE.
- This individual control signal may be referred to as a measurement control.
- the channel measurement signal information used in the handover destination cell may or may not be included in the response signal in step S32.
- the base station eNB # l stores not only the information of the channel measurement signal at its own station but also the information of the channel measurement signal at the neighboring base station eNB # 2. It is necessary to keep.
- step S12 the user apparatus UE performs channel measurement by matching the reception frequency to the channel measurement signal in the destination cell. If the transmission timing is also specified, control is performed so that the channel measurement signal is received at that timing. Specifically, a pilot signal may be used as the channel measurement signal, but another signal may be used.
- the channel measurement signal is wirelessly transmitted from the transfer destination base station eNB # 2 at a predetermined frequency and timing. As described above, the predetermined frequency and timing are determined at the time of step S41.
- the channel measurement signal may actually be wirelessly transmitted from the destination base station eNB # 2 at a predetermined frequency and timing without depending on the instruction signal from the source base station.
- the channel measurement signal is not transmitted wirelessly if there is no instruction signal of the source base station power, and the instruction signal is received by the destination base station.
- the channel measurement signal power is only transmitted by radio from the destination base station eNB # 2 at a predetermined frequency and timing.
- the channel measurement signal information in the neighboring base stations may be known by the handover source base station eNB # l before receiving the handover request signal! /.
- the second embodiment of the present invention can cope with such a problem.
- FIG. 8 is a flowchart showing an operation example according to the second embodiment of the present invention.
- this flowchart is the same as the flowchart shown in FIG.
- the information of the channel measurement signal is centrally managed by the higher-level device (access gateway aGW) of the base station! Therefore, before receiving the handover request signal, the handover source base station eNB # l does not know the channel measurement signal information in the neighboring base stations.
- This information needs to be included in the response signal to the instruction signal from the source base station eNB # l (step S321). This is particularly different from the first embodiment in which the information may or may not be included in the response signal.
- the source base station eNB # l can collect information on channel measurement signals in the neighboring base stations by receiving one or more neighboring base station power response signals. In the same manner as described with reference to FIG. 7, an individual control signal including the information is created and scheduled (step S23) and transmitted (step S24).
- Example 3 Information of the channel measurement signal included in the common control signal CCH may be specified by either or both of the frequency information and the transmission timing information!
- FIG. 9 schematically shows a mapping example of the common control signal CCH in terms of both time and frequency.
- the common control signal CCH is continuously generated in the cell A at the frequency f.
- the system bandwidth is supported by a cell such as 20 MHz or 10 MHz, for example.
- the user apparatus UE performs communication using one or more resource blocks (RBs) in all or a part of the frequency band of the system band.
- the resource block allocation plan is performed by base station scheduling.
- the allocation unit of radio resources in the frequency axis direction is one resource block (RB), and the allocation unit in the time axis direction is one transmission time interval (TTI).
- TTI transmission time interval
- FIG. 10 shows another mapping example of the common control signal CCH.
- the common control signal CCH is transmitted at the same frequency f as in FIG. 9, but it is always transmitted continuously.
- the channel measurement signal information notified to the user equipment is the frequency information (frequency is f
- transmission timing information (information indicating that the transmission timing is intermittent every 4 TTIs) may be included. However, if meaningless channel measurement may be performed over a maximum period of 4 TTI, only frequency information may be notified to the user equipment.
- the channel measurement signal is transmitted on A.
- the radio resource indicated by “P” is exceptionally used for transmission of the common control signal CCH.
- the allocation of radio resources By scheduling this content, it is possible to deal with problems related to handover delay.
- the channel measurement signal is included in the common control signal CCH, it is assumed that the frequency and Z or the transmission timing of the channel measurement signal are fixed. It had been. However, at least the channel measurement signal may not be fixed in the cell. In other words, the signal used for channel measurement could be made using any of the free resources.
- the radio resource power response signal used for the channel measurement signal is not determined before transmission.
- FIG. 11 shows a flowchart of an operation example according to the fourth embodiment.
- Step S311 in the figure corresponds to step S22 in FIG. 8, and steps S321 and S33 are the same as in FIG. Therefore, steps S312, S313, and S314 are performed between steps S22 and S321 in FIG. 8, and these are performed at the destination candidate base station eNB # 2.
- step S311 an instruction signal is received from the source base station eNB # l due to a handover request from the user apparatus.
- step S312 the presence or absence of a free resource is confirmed. For example, when common control signals (including channel measurement signals) are mapped as shown in FIG. 10, the presence or absence of free resources as indicated by “Q” is checked. If free resources are found, the flow proceeds to step S313.
- common control signals including channel measurement signals
- step S313 frequency information and transmission timing information (in the illustrated example, information indicating that the frequency is f and the transmission timing is t) for specifying a free resource are based on the basis.
- step S312 if no free resource is found in step S312, the flow proceeds to step S314.
- step S314 information indicating resources fixedly secured in the channel measurement signal by the base station eNB # 2 (in the example shown, the frequency is f and is transmitted intermittently every 4 TTIs).
- step S321 a response signal designating a free resource or a predetermined resource is transmitted to the base station eNB # l.
- step S33 a channel measurement signal is wirelessly transmitted according to the content specified by the response signal.
- the search target for available resources may be the entire allocation target of radio resources or may be limited to a part of them.
- the search for free resources is limited to a 4 TTI period during which CCH is not transmitted, and when CCH is transmitted, a CCH channel measurement signal may be used.
- some radio resource may be preferentially scheduled for the channel measurement signal regardless of whether there is an available resource.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200680056320A CN101536577A (zh) | 2006-11-08 | 2006-11-08 | 在进行频带间切换的移动通信系统中使用的基站装置、用户装置和方法 |
JP2008542966A JP5198281B2 (ja) | 2006-11-08 | 2006-11-08 | 移動通信システムで使用される基地局装置及び方法 |
KR1020097009317A KR101036100B1 (ko) | 2006-11-08 | 2006-11-08 | 대역간 핸드오버를 행하는 이동 통신 시스템에서 사용되는 기지국 장치, 유저 장치 및 방법 |
EP06823185.1A EP2081392B1 (en) | 2006-11-08 | 2006-11-08 | Base station apparatus, user equipment and method used in mobile communication system performing inter-band handover |
PCT/JP2006/322281 WO2008056411A1 (fr) | 2006-11-08 | 2006-11-08 | Appareil de station de base, équipement utilisateur et procédé utilisé dans un système de communication mobile effectuant un transfert interbande |
US12/436,317 US20090215460A1 (en) | 2006-11-08 | 2009-05-06 | Base Station Apparatus, User Equipment, Method Used In Mobile Communications System Performing Handover Between Bandwidths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/322281 WO2008056411A1 (fr) | 2006-11-08 | 2006-11-08 | Appareil de station de base, équipement utilisateur et procédé utilisé dans un système de communication mobile effectuant un transfert interbande |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/436,317 Continuation US20090215460A1 (en) | 2006-11-08 | 2009-05-06 | Base Station Apparatus, User Equipment, Method Used In Mobile Communications System Performing Handover Between Bandwidths |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008056411A1 true WO2008056411A1 (fr) | 2008-05-15 |
Family
ID=39364240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/322281 WO2008056411A1 (fr) | 2006-11-08 | 2006-11-08 | Appareil de station de base, équipement utilisateur et procédé utilisé dans un système de communication mobile effectuant un transfert interbande |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090215460A1 (ja) |
EP (1) | EP2081392B1 (ja) |
JP (1) | JP5198281B2 (ja) |
KR (1) | KR101036100B1 (ja) |
CN (1) | CN101536577A (ja) |
WO (1) | WO2008056411A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009296340A (ja) * | 2008-06-05 | 2009-12-17 | Fujitsu Ltd | 移動通信システム、移動通信方法および通信装置 |
WO2010150884A1 (ja) * | 2009-06-26 | 2010-12-29 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法、移動局及び無線基地局 |
JP2011525772A (ja) * | 2008-06-30 | 2011-09-22 | エルジー エレクトロニクス インコーポレイティド | 中継局及びこれを用いる無線通信システム |
EP2323439A4 (en) * | 2008-09-05 | 2012-01-25 | Huawei Device Co Ltd | METHOD AND SYSTEM FOR SWITCHING BETWEEN MOBILE DEVICES AND A MOBILE DEVICE |
JP2012512575A (ja) * | 2008-12-16 | 2012-05-31 | 中▲興▼通▲訊▼股▲フン▼有限公司 | 端末及びその走査方法 |
JP2012514913A (ja) * | 2009-01-22 | 2012-06-28 | ゼットティーイー コーポレイション | マルチキャリアーシステムに基づくスキャン応答送信方法と基地局 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5073718B2 (ja) * | 2009-08-18 | 2012-11-14 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法及び無線基地局 |
KR20110049694A (ko) * | 2009-11-03 | 2011-05-12 | 엘지전자 주식회사 | 무선 통신 시스템에서 인접 셀의 시스템 정보 수신 중 채널 상태 측정 방법 및 이를 위한 장치 |
CN102378296B (zh) * | 2010-08-12 | 2013-06-05 | 普天信息技术研究院有限公司 | 一种通信系统中的频带切换方法 |
WO2011144085A2 (zh) | 2011-05-25 | 2011-11-24 | 华为技术有限公司 | 数据传输方法和基站 |
US10084615B2 (en) | 2016-11-14 | 2018-09-25 | Electronics And Telecommunications Research Institute | Handover method and control transfer method |
US10575312B2 (en) | 2016-12-01 | 2020-02-25 | Electronics And Telecommunications Research Institute | Method of assigning channel for UAS control and non-payload communication (CNPC) system |
EP3536035B1 (en) * | 2016-12-07 | 2023-04-05 | Huawei Technologies Co., Ltd. | Method and terminal for managing a high frequency connection |
US11497054B2 (en) * | 2019-05-02 | 2022-11-08 | Qualcomm Incorporated | Channel congestion measurement |
US11632271B1 (en) | 2022-02-24 | 2023-04-18 | T-Mobile Usa, Inc. | Location-based channel estimation in wireless communication systems |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004015413A (ja) * | 2002-06-06 | 2004-01-15 | Ntt Docomo Inc | オーバーレイエリアでのハンドオーバ制御を行う移動通信システム |
JP2006510279A (ja) * | 2002-12-13 | 2006-03-23 | 大唐移動通信設備有限公司 | 移動通信システムにおけるハンドオーバー方法 |
JP2006173861A (ja) * | 2004-12-14 | 2006-06-29 | Fujitsu Ltd | 無線通信システム及び基地局及び移動局 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3058261B2 (ja) * | 1997-05-28 | 2000-07-04 | 日本電気株式会社 | Cdmaハンドオフ方式及びそれを用いた移動通信セルラーシステムとその基地局 |
KR100680072B1 (ko) * | 1999-09-14 | 2007-02-09 | 유티스타콤코리아 유한회사 | 비동기 이동통신 시스템에서 호 처리 및 핸드오프 처리 방법 |
US6845238B1 (en) * | 1999-09-15 | 2005-01-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Inter-frequency measurement and handover for wireless communications |
CN1589541B (zh) * | 2001-11-17 | 2010-05-12 | 三星电子株式会社 | 用于移动通信系统中的越区切换的信号测量装置及方法 |
JP2003348007A (ja) * | 2002-03-20 | 2003-12-05 | Nec Corp | 無線移動通信方法及び無線基地局並びに無線リソース管理装置及び移動端末装置 |
KR100665425B1 (ko) * | 2003-03-08 | 2007-01-04 | 삼성전자주식회사 | 이동 통신 시스템에서 핸드오버를 수행하는 시스템 및 방법 |
AU2004303041B2 (en) * | 2003-09-04 | 2008-07-24 | Samsung Electronics Co., Ltd. | System and method for selecting a serving base station according to a drop of a mobile subscriber station in a broadband wireless access communication system |
KR101108038B1 (ko) * | 2004-05-10 | 2012-01-25 | 엘지전자 주식회사 | 광대역 무선접속 시스템에서 핸드오버를 위한 기지국정보의 제공 방법 |
US8320326B2 (en) * | 2004-11-22 | 2012-11-27 | Motorola Mobility Llc | Method and system for inter-technology active handoff of a hybrid communication device |
JP4720977B2 (ja) * | 2005-02-14 | 2011-07-13 | 日本電気株式会社 | 基地局制御装置、移動体通信システム、および近隣セルリストフィルタリング方法 |
JP2006303739A (ja) * | 2005-04-18 | 2006-11-02 | Ntt Docomo Inc | 基地局装置、移動通信システム、および移動通信方法 |
KR100964842B1 (ko) * | 2005-08-25 | 2010-06-24 | 삼성전자주식회사 | 무선 이동 통신 시스템에서 핸드오버를 위한 시스템 및방법 |
KR20070044233A (ko) * | 2005-10-24 | 2007-04-27 | 삼성전자주식회사 | 직교 주파수 분할 다중화 방식을 기반으로 하는 이동통신시스템에서 호 수락 제어 장치 및 방법 |
-
2006
- 2006-11-08 KR KR1020097009317A patent/KR101036100B1/ko not_active IP Right Cessation
- 2006-11-08 WO PCT/JP2006/322281 patent/WO2008056411A1/ja active Application Filing
- 2006-11-08 CN CN200680056320A patent/CN101536577A/zh active Pending
- 2006-11-08 JP JP2008542966A patent/JP5198281B2/ja not_active Expired - Fee Related
- 2006-11-08 EP EP06823185.1A patent/EP2081392B1/en not_active Not-in-force
-
2009
- 2009-05-06 US US12/436,317 patent/US20090215460A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004015413A (ja) * | 2002-06-06 | 2004-01-15 | Ntt Docomo Inc | オーバーレイエリアでのハンドオーバ制御を行う移動通信システム |
JP2006510279A (ja) * | 2002-12-13 | 2006-03-23 | 大唐移動通信設備有限公司 | 移動通信システムにおけるハンドオーバー方法 |
JP2006173861A (ja) * | 2004-12-14 | 2006-06-29 | Fujitsu Ltd | 無線通信システム及び基地局及び移動局 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2081392A4 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009296340A (ja) * | 2008-06-05 | 2009-12-17 | Fujitsu Ltd | 移動通信システム、移動通信方法および通信装置 |
JP2011525772A (ja) * | 2008-06-30 | 2011-09-22 | エルジー エレクトロニクス インコーポレイティド | 中継局及びこれを用いる無線通信システム |
US8331271B2 (en) | 2008-06-30 | 2012-12-11 | Lg Electronics Inc. | Relay station and wireless communication system using the same |
KR101511786B1 (ko) | 2008-06-30 | 2015-04-14 | 엘지전자 주식회사 | 주파수 분할 이중 중계국을 포함하는 무선통신 시스템 및 이 무선통신 시스템에서의 무선자원의 이용 방법 |
EP2323439A4 (en) * | 2008-09-05 | 2012-01-25 | Huawei Device Co Ltd | METHOD AND SYSTEM FOR SWITCHING BETWEEN MOBILE DEVICES AND A MOBILE DEVICE |
JP2012512575A (ja) * | 2008-12-16 | 2012-05-31 | 中▲興▼通▲訊▼股▲フン▼有限公司 | 端末及びその走査方法 |
JP2012514913A (ja) * | 2009-01-22 | 2012-06-28 | ゼットティーイー コーポレイション | マルチキャリアーシステムに基づくスキャン応答送信方法と基地局 |
US8929825B2 (en) | 2009-01-22 | 2015-01-06 | Zte Corporation | Method for sending a scan response based on a multi-carrier system, and base station |
WO2010150884A1 (ja) * | 2009-06-26 | 2010-12-29 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法、移動局及び無線基地局 |
JP2011010149A (ja) * | 2009-06-26 | 2011-01-13 | Ntt Docomo Inc | 移動通信方法、移動局及び無線基地局 |
CN102461255A (zh) * | 2009-06-26 | 2012-05-16 | 株式会社Ntt都科摩 | 移动通信方法、移动台和无线基站 |
US8457637B2 (en) | 2009-06-26 | 2013-06-04 | Ntt Docomo, Inc. | Mobile communication method, mobile station, and radio base station |
Also Published As
Publication number | Publication date |
---|---|
US20090215460A1 (en) | 2009-08-27 |
EP2081392A1 (en) | 2009-07-22 |
KR20090086982A (ko) | 2009-08-14 |
CN101536577A (zh) | 2009-09-16 |
KR101036100B1 (ko) | 2011-05-19 |
EP2081392A4 (en) | 2012-08-08 |
JPWO2008056411A1 (ja) | 2010-02-25 |
EP2081392B1 (en) | 2014-09-24 |
JP5198281B2 (ja) | 2013-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5198281B2 (ja) | 移動通信システムで使用される基地局装置及び方法 | |
KR102041378B1 (ko) | 무선통신시스템에서 셀 내 무선랜 정보를 송수신하기 위한 방법 및 장치 | |
US9854044B2 (en) | Method and arrangement for handling device-to-device communication in a wireless communications network | |
CA2534976C (en) | Passive probing for handover in a local area network | |
JP5855280B2 (ja) | ユーザ装置および無線ネットワークノード、およびその方法 | |
KR101090042B1 (ko) | 무선 시스템을 위한 튠 어웨이 프로토콜 | |
TWI422249B (zh) | 用於多模式終端掃描的方法及系統 | |
JP6403203B2 (ja) | 無線通信システム、端末装置、基地局装置、無線通信方法および集積回路 | |
CN105721131A (zh) | 交换与测量周期有关的参数 | |
CN104247509A (zh) | 移动通信系统中的网络的设备内共存干扰报告控制方法和装置 | |
CN101971662A (zh) | 用于tdd系统中移动终端的配置测量时隙 | |
JP5624154B2 (ja) | マイクロ基地局再構成のための方法、及び対応するマイクロ基地局 | |
WO2018028272A1 (zh) | 一种上行资源调度方法及相关设备 | |
WO2015194276A1 (ja) | 装置及び方法 | |
JP5097819B2 (ja) | 隣接セルのシステム情報の読み出し | |
JP5990169B2 (ja) | 圧縮モードの制御方法及びシステム | |
KR20180136852A (ko) | 5g 기지국의 복수의 동기신호를 고려한 rrm 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680056320.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 06823185 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008542966 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020097009317 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006823185 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |