WO2010124461A1 - Procédé et appareil de découverte d'un transfert rapide - Google Patents

Procédé et appareil de découverte d'un transfert rapide Download PDF

Info

Publication number
WO2010124461A1
WO2010124461A1 PCT/CN2009/071569 CN2009071569W WO2010124461A1 WO 2010124461 A1 WO2010124461 A1 WO 2010124461A1 CN 2009071569 W CN2009071569 W CN 2009071569W WO 2010124461 A1 WO2010124461 A1 WO 2010124461A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
user equipment
fast
handover
fast handover
Prior art date
Application number
PCT/CN2009/071569
Other languages
English (en)
Chinese (zh)
Inventor
王君
杨学君
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2009/071569 priority Critical patent/WO2010124461A1/fr
Publication of WO2010124461A1 publication Critical patent/WO2010124461A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for discovering fast handover. Background technique
  • the LTE (Long Term Evolution) project is an evolution of 3GPP (3rd Generation Partnership Project), which improves and enhances 3G air access technology and improves the performance and improvement of cell edge users.
  • the cell capacity reduces system delay.
  • LTE adopts OFDM (Orthogonal Frequency Division Multiplex) and MIMO (Multiple Input Multiple Output) as its standard for wireless network evolution, and can provide downlink 100 Mbit/s and uplink in a 20 MHz spectrum bandwidth. Peak rate of 50 Mbit/s.
  • NGMN next generation mobile networks
  • a typical scenario in the mobility optimization sub-topic is fast handover: It is assumed that cells A, B, and C are neighbors, but for some reason (such as planning considerations, cell B cannot directly cover the area). The signal of B will cover the overlapping area of the cell A and the cell C, and the signal of the cell B in the overlapping area is slender, and the mobile path of the UE (User Equipment) is assumed to be the cell A-> Cell B->Cell C. If the parameter setting of cell A is unreasonable, the UE will switch to cell C immediately after switching from cell A to cell B.
  • the normal handover in the above scenario should be from cell A. Switch directly to cell C.
  • the UE since the signal width of the cell B in the overlapping area is very narrow, after the UE switches from the cell A to the cell B, the UE may send a measurement report to the current serving cell B in the future, and the signal of the cell B is weak enough to cause the UE. RLF (Radio Link Failure) has occurred, so in order to avoid this phenomenon, it is also desirable to enable the UE to directly switch from cell A to cell C without switching to B relay.
  • RLF Radio Link Failure
  • the mobility parameters are manually configured according to experience, and then the road test is performed in the field and the related performance, such as handover success rate, dropped call rate, cell selection, cell reselection, and the like, are performed.
  • the mobility parameters are then optimized based on experience.
  • the embodiment of the invention provides a fast handover discovery method, which saves manpower and reduces network maintenance costs.
  • the method includes:
  • the embodiment of the invention further provides a fast switching discovery device, which saves manpower and reduces network maintenance costs.
  • the device includes:
  • a first determining module configured to determine whether a time that the user equipment stays in the cell exceeds a threshold
  • a second determining module configured to determine, when the first determining module determines that the time that the user equipment stays in the cell exceeds a threshold, determining the user equipment A fast handover does not occur in the cell.
  • the first determining module determines that the time that the user equipment stays in the cell does not exceed the threshold, determining that the user equipment performs fast handover in the cell.
  • FIG. 1 is a flowchart of a method for discovering fast handover according to an embodiment of the present invention
  • FIG. 2 and FIG. 3 are schematic diagrams showing a discovery mechanism in an embodiment of the present invention.
  • FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, and FIG. 10 are schematic diagrams showing specific implementations of a notification mechanism according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a notification mechanism in an embodiment of the present invention.
  • FIG. 12 are schematic diagrams showing the structure of a fast switching discovery device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a first determining module according to an embodiment of the present invention.
  • FIG. 15 and FIG. 16 are schematic structural diagrams of a notification module according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a handover control module according to an embodiment of the present invention. detailed description
  • the process of the fast handover discovery method may include: Step 101: Determine whether the time that the user equipment stays in the cell exceeds a threshold; if yes, execute step 102; if not, execute step 103. .
  • Step 102 Determine that the user equipment does not perform fast handover in the cell.
  • Step 103 Determine that the user equipment performs fast handover in the cell.
  • the process shown in Figure 1 can automatically detect the fast handover problem. If the user equipment stays in the cell does not exceed the threshold, the user equipment can be considered to have a fast handover in the cell. Compared with the discovery, it can save manpower and reduce network maintenance costs.
  • the method may include: detecting a time when the user equipment accesses the cell, a time of leaving the cell, calculating a difference between the two, and determining that the user equipment is The time when the cell stays is compared with the threshold to determine whether the time that the user equipment stays in the cell exceeds a threshold.
  • the processing flow may be as follows:
  • the difference between the two moments is calculated, and the time that the user equipment stays in the cell is determined. By comparing the time with the threshold, it is determined whether the time that the user equipment stays in the cell exceeds a threshold.
  • the following is a specific example to illustrate the discovery mechanism of the fast handover problem in this embodiment: As shown in the schematic diagram of the discovery mechanism, when the fast handover problem occurs, the user equipment is switched from the cell A to the cell B, so the cell B It is possible to accurately understand the user equipment accessing the cell.
  • the time that the user equipment stays in the cell B can be calculated by the cell B, and the time is compared with the threshold; The cell B periodically or irregularly reports the time to the cell A, and the cell A compares the time with the threshold. Of course, the cell B can also periodically or irregularly access the user equipment to the cell B. The time point 7 ⁇ leaving cell B is reported to cell A, and cell A calculates the time that the user equipment stays in cell B, and compares the time with the threshold.
  • a threshold for example, 2 s.
  • Administration and Maintenance or other similar devices, such as MME (Mobility Management Entity), eNB (eNodeB, base station), etc., set a threshold (Time_threshold) as needed, and obtain 1 ⁇ Then, it is compared with the Time-threshold to determine whether a fast handover has occurred in the cell B.
  • MME Mobility Management Entity
  • eNB eNodeB, base station
  • step 101 may also be as follows: When the user equipment accesses the cell, a timer is started, and when the user equipment leaves the cell, it is determined by determining whether the timer expires. Whether the time that the user equipment stays in the cell exceeds a threshold. That is, the processing flow can be as follows:
  • the timer is started when the user equipment accesses the cell
  • determining that the user equipment stays in the cell exceeds a threshold, that is, the user equipment does not perform fast handover in the cell; if there is no timeout, determining, when the user equipment stays in the cell The threshold is not exceeded, that is, the user equipment performs fast handover in the cell.
  • a timer may be set for the cell B by an OAM or other similar device, such as an MME, an eNB, or the like as needed. Starting from the time when the user equipment accesses the cell B, the timer starts to count, and it is determined whether the time that the user equipment stays in the cell B is less than a threshold by determining whether the timer expires, thereby determining whether a fast handover occurs.
  • step 101 may also be as follows: Obtaining the cutting of the user equipment And changing the history information; extracting the stay time in the previous cell from the handover history information of the user equipment, and comparing the time with the threshold, determining whether the time that the user equipment stays in the cell exceeds a threshold.
  • the user history information is a history list of the switched cell of the active user equipment, including the cell list that the user equipment has previously switched, and the time value (in seconds) that the user station stays in each cell.
  • UE History Information is a history list of the switched cell of the active user equipment, including the cell list that the user equipment has previously switched, and the time value (in seconds) that the user station stays in each cell.
  • the first cell is cell A
  • the second cell is cell B
  • the third cell is cell C.
  • the user equipment initiates a service in cell A, and is handed over by cell A to cell B (the stay time in cell A is ⁇ ), and then the cell B switches to the cell.
  • the UE History Information of the user equipment includes the identification information of the staying in the cell A and the cell B, and the staying time. As shown in Table 1.
  • the cell C can transmit the UE history information to the cell A periodically or irregularly. After receiving the information, the cell A can view that the user equipment has stayed in both the cell A and the cell B, and the time is respectively For 10s and ls, if a threshold is set to 2S, the time (Is) staying in the cell B is less than the threshold (2s), so the cell A can consider that the user equipment occurs once before switching from the cell B to the cell C. Fast switching, that is, the time spent in cell B is too short.
  • Cell C may not have to pass the UE History Information to cell A, but instead Use the UE History Information to discover the problem. For example, cell C can view the UE History Information and find that the UE has stayed in both cell A and cell B, and the time is 10s and ls, respectively, because the time (Is) staying in cell B is less than the threshold (assumed to be 2s) Therefore, the cell C considers that the user equipment has a fast handover before the handover from the cell B to the cell C, that is, the time spent in the cell B is too short.
  • the OAM may set a threshold (Time-threshold) according to the requirement, and after obtaining the time of the user equipment staying in the cell in the UE History Information, and then the time - The threshold is compared to determine if a fast handoff has occurred in the cell.
  • a threshold Time-threshold
  • the user equipment may notify the cell that causes the fast handover to occur after the fast handover occurs in the cell.
  • the fast switching problem notification is automatically realized, which can save manpower and reduce network maintenance cost compared with the prior art notification of relying on manual quick quick change.
  • the cell that causes the fast handover to occur may be: the previous cell of the first cell in the fast-switching cell adjacent to the handover path of the user equipment; : the previous cell of the cell in which the fast handover occurs for each of the handover paths of the user equipment.
  • the user device's switching history is: A -> B (Rapid HO) -> C (Rapid HO) -> D-> E.
  • the user equipment does not have fast handover in cells VIII, D, and E, and fast handover occurs in cells 8, C. Then, it can be considered that the fast handover of the cells B and C is caused by the small area A, and the previous cell of the first cell in the fast handover cell adjacent to the handover path of the user equipment.
  • the notification mechanism may be implemented in multiple ways:
  • the latter one of the last cells in the adjacent fast-switching cell
  • the cell sends a notification message (Rapid HO problem) to the previous cell of the first cell.
  • a notification message (Rapid HO problem)
  • cells that are adjacent to the fast handover are cells B and C
  • the cell D sends a notification message to the cell A.
  • the cell D can detect the time that the user equipment stays in the cell, for example, by using the foregoing timer or threshold, to determine that the user equipment stays in the cell exceeds the threshold, that is, the cell D does not have a fast handover;
  • the cell B and the cell C may be quickly switched according to the historical information of the user equipment.
  • the cell A is not a fast handover. Therefore, the cell A is considered to be a problem cell that causes fast handover.
  • the notification message may be forwarded to each cell of the first consecutive fast handover cell by the neighboring cell that is subjected to the handover by the user equipment recorded in the handover history record.
  • the neighboring cell that is subjected to the handover by the user equipment recorded in the handover history record.
  • the cell D forwards the notification message to the cell through the cell C and the cell B.
  • the message carries the identifiers of the cells B and A, such as CGI, frequency, PCI, etc., for routing. Similar to FIG.
  • the cell D can determine that no fast handover occurs in the cell D, and if a fast handover occurs in the cells B and C, the notification message is sent to the cell C, the cell C is forwarded to the cell B, and finally the cell B is forwarded to the cell B.
  • Cell A
  • a notification message may be sent to the previous cell of the first fast-switching cell by the second cell behind the last cell in the adjacent fast-switching cell.
  • the adjacent cells that have fast handover are cells B and C
  • the cell E sends a notification message to the cell A.
  • the cell E can determine that no fast handover occurs in the cell D according to the historical information of the user equipment, and if a fast handover occurs in the cells B and C, the notification message is sent to the cell A.
  • the notification message may be forwarded to each cell by the user equipment that belongs to the user equipment that is recorded in the handover history record by the second cell behind the last cell in the adjacent fast-switching cell.
  • the previous cell of a cell As shown in FIG. 7, in this example, if the neighboring fast-switching cells are cells B and C, the cell E will sequentially send the notification message to the cell. D, C, B, forwarded to cell A. Similar to FIG. 6, the cell E may determine that a fast handover occurs in the cells B and C according to the historical information of the user equipment, and if the handover does not occur in the cell D, the notification message is sent to the cell D, and the cell D is forwarded to the cell C. It is forwarded by cell C to cell B, and finally forwarded by cell B to cell A.
  • Each message may carry the identifier of the relevant cell, such as the CGI, frequency, PCI, etc. of the cell ⁇ C, D, for routing purposes.
  • the notification mechanism may be implemented in multiple manners:
  • the cell that generates the fast handover may send a notification message to the previous cell of the fast-switching cell.
  • the adjacent fast-switching cell is the cell B, C
  • the cell B detects the fast handover, and sends a notification message to the problem cell A
  • the cell C detects the fast handover, and sends a notification message to the problem cell B
  • the cells B and C can detect the user equipment in the cell by itself.
  • the staying time for example, by using the foregoing timer or threshold method, determines that the time that the user equipment stays in the local cell does not exceed the threshold, that is, a fast handover occurs in the local cell.
  • the next cell of the fast-switching cell sends a notification message to the previous cell of the fast-switching cell.
  • the neighboring fast-switching cells are cells B and C
  • the cell C detects that the user equipment has quickly switched in the cell B, and sends a notification message to the cell A;
  • the user equipment is detected to have a fast handover in the cell C, and a notification message is sent to the cell B.
  • the cell C may determine that the cell B has a fast handover according to the historical information of the user equipment;
  • the cell D may determine that the cell C has a fast handover according to the historical information of the user equipment.
  • the next cell of the fast-switching cell forwards the notification message to the previous cell of the fast-switching cell via the fast-switching cell.
  • the adjacent cell that performs fast handover is cell C
  • the cell C forwards the notification message to the cell A through the cell B
  • the cell D forwards the notification message to the cell B through the cell C.
  • the cell C determines the cell B according to the historical information of the user equipment. If a fast handover occurs, the notification message is sent to the cell B, and the cell B is forwarded to the corresponding problem cell A.
  • the cell D determines that the cell C has a fast handover according to the historical information of the user equipment, and then sends a notification message to the cell C. It is forwarded by the cell C to the corresponding problem cell B.
  • Figure 11 also shows a signal flow diagram of a notification mechanism, including sending a notification message.
  • a notification message can also be selectively sent in the implementation.
  • the above notification and feedback message may be an X2 message, an S1 message, or may be transited by OAM.
  • the message may be an extension of an existing message to support the function, such as augmenting a Handover Request, Handover Request Acknowledge, or adding a new message to implement the function.
  • the notification message can carry any combination of the following specific parameters to describe the problem:
  • CGI Cell Global Identifier
  • PCI Protocol Control Information
  • frequency point PLMN (Public Land Mobile Network) Identification
  • the notification message may further include information about the target cell, such as a cell identifier (such as a CGI, a PCK frequency, and a PLMN identifier).
  • a cell identifier such as a CGI, a PCK frequency, and a PLMN identifier
  • the user equipment is determined in the discovery method according to the fast switching described above. After a fast handover occurs in a cell and the cell that causes the fast handover occurs is notified, the probability that the user equipment is switched to the cell in which the fast handover occurs may be reduced by the cell that causes the fast handover to occur. Therefore, the problem of fast switching is solved; compared with the solution of the manual quick-change problem in the prior art, the manpower can be saved and the network maintenance cost can be reduced.
  • the cell that causes the fast handover to occur may be configured to reduce the switching parameters of the local cell, such as Hys, CIO (Cell Individual Offset, cell personality offset), etc., to reduce the user equipment to switch to fast switching.
  • the probability of the cell For example, in the scenario shown in FIG. 2, it is possible to make handover from cell A to cell B difficult by adjusting handover parameters, and it is easy to switch from cell A to cell C to increase switching of A->C. Probability, and reduce the switching probability of A->B.
  • the cell that causes the fast handover to occur may also reduce the probability that the user equipment switches to the cell in which the fast handover occurs by modifying the handover decision algorithm of the local cell.
  • a person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium.
  • the method may include all or part of the steps in the foregoing embodiment, and the storage medium may include: a ROM, a RAM, a magnetic disk, an optical disk, and the like.
  • a discovery device for fast handover is also provided in the embodiment of the present invention, as described in the following embodiments. Since the principle of solving the problem of the device is similar to the method for discovering the fast switching, the implementation of the device can be referred to the implementation of the method, and the repeated description will not be repeated.
  • the fast handover discovery device in the embodiment of the present invention may include: a first determining module 1201, configured to determine whether a time that the user equipment stays in the cell exceeds a threshold;
  • a second determining module 1202 configured to determine, at the first determining module, that the user equipment stays in the cell When the time exceeds the threshold, it is determined that the user equipment does not perform fast handover in the cell; when the first determining module determines that the time that the user equipment stays in the cell does not exceed the threshold, determining that the user equipment occurs in the cell Quickly switch.
  • the first determining module 1201 may include one or any combination of the following modules:
  • the first determining unit 1301 is configured to detect a time when the user equipment accesses the cell, a time when the user leaves the cell, calculate a difference between the two, and determine a time for the user equipment to stay in the cell, by using the Comparing the time with the threshold, determining whether the time that the user equipment stays in the cell exceeds a threshold;
  • a second determining unit 1302 configured to start a timer when the user equipment accesses the cell, and determine, by the user equipment, whether the timer expires when the user equipment leaves the cell, Whether the time the cell stays exceeds the threshold;
  • the third determining unit 1303 is configured to acquire historical information of the user equipment, extract the time from the historical information of the user equipment, and determine that the user equipment stays in the cell by comparing the time with a threshold. Whether the time exceeds the threshold.
  • the discovery apparatus shown in FIG. 12 may further include: a notification module 1401, configured to: after the second determining module 1202 determines that the user equipment performs a fast handover in the cell, notifying that the fast handover occurs Community.
  • the notification module 1401 may include:
  • the first notification unit 1501 is configured to trigger a next cell of the last cell in the adjacent fast-switching cell on the handover path of the user equipment, to the front of the first cell in the adjacent fast-switching cell A cell sends a notification message;
  • the second notification unit 1502 is configured to trigger the next cell of the last cell, and forward the notification message to the previous cell of the first cell by using each of the preceding cells; or, the third notification unit 1503.
  • the fourth notification unit 1504 is configured to trigger a second cell that is behind the last cell in the adjacent fast-switching cell, and forward the notification message to the first cell by using each of the preceding cells. The former cell.
  • the notification module 1401 may include:
  • a fifth notification unit 1601 configured to trigger a cell that performs fast handover on the handover path of the user equipment to send a notification message to a previous cell of the fast-switching cell;
  • the sixth notification unit 1602 is configured to: send, to each of the cells in which the fast handover occurs, a subsequent cell that triggers the fast handover to send a notification message to the previous cell of the fast handover cell;
  • the seventh notification unit 1603 is configured to: for each of the cells that have a fast handover, trigger a subsequent cell of the cell that performs the fast handover to forward the notification message to the fast-switching cell via the fast-switching cell. The previous cell.
  • the fast switching discovery device shown in FIG. 14 may further include:
  • the handover control module 1701 is configured to trigger, after the notification module 1401 notifies the cell that causes the fast handover to occur, the cell that causes the fast handover to occur to reduce the probability that the user equipment switches to the cell in which the fast handover occurs.
  • the handover control module 1701 may include:
  • the first handover control unit 1801 is configured to trigger the cell that causes the fast handover to occur, by adjusting the handover parameter of the local cell, and reduce the probability that the user equipment switches to the cell in which the fast handover occurs;
  • the second handover control unit 1802 is configured to trigger a cell that causes fast handover to occur, by modifying a handover decision algorithm of the local cell, and reducing a handover of the user equipment to a cell in which fast handover occurs.
  • it is determined whether the time that the user equipment stays in the cell exceeds a threshold; if yes, determining that the user equipment does not perform fast handover in the cell; if not, determining the user setting A fast handover occurs in the cell, thereby automatically discovering a fast handover problem;
  • the cell that causes the fast handover to occur is notified, and the fast handover problem notification is automatically implemented;
  • the probability that the user equipment causing the fast handover occurs is switched to the cell in which the fast handover occurs, thereby solving the fast handover problem;
  • the above-mentioned embodiments of the present invention can save manpower and reduce network maintenance costs.

Landscapes

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

Abstract

Un procédé de découverte d'un transfert rapide consiste à : déterminer si le temps de séjour de l'équipement utilisateur dans une cellule dépasse le seuil (101); si c'est le cas, déterminer que l'équipement utilisateur n'effectue pas de transfert rapide dans la cellule (102); si ce n'est pas le cas, déterminer que l'équipement utilisateur effectue un transfert rapide dans la cellule (103). L'invention concerne également un appareil de découverte d'un transfert rapide. La main-d'œuvre peut être économisée et le coût de la maintenance du réseau peut être réduit en appliquant la présente invention.
PCT/CN2009/071569 2009-04-29 2009-04-29 Procédé et appareil de découverte d'un transfert rapide WO2010124461A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/071569 WO2010124461A1 (fr) 2009-04-29 2009-04-29 Procédé et appareil de découverte d'un transfert rapide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/071569 WO2010124461A1 (fr) 2009-04-29 2009-04-29 Procédé et appareil de découverte d'un transfert rapide

Publications (1)

Publication Number Publication Date
WO2010124461A1 true WO2010124461A1 (fr) 2010-11-04

Family

ID=43031683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/071569 WO2010124461A1 (fr) 2009-04-29 2009-04-29 Procédé et appareil de découverte d'un transfert rapide

Country Status (1)

Country Link
WO (1) WO2010124461A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013174173A1 (fr) * 2012-05-23 2013-11-28 华为技术有限公司 Procédé et station de base pour déterminer un transfert intercellulaire inutile
CN103797847A (zh) * 2011-11-14 2014-05-14 富士通株式会社 不必要切换的判断方法以及基站
WO2024065439A1 (fr) * 2022-09-29 2024-04-04 Mediatek Singapore Pte. Ltd. Procédés et appareil de prise en charge de gestion de faisceau inter-du inter-cellule basée sur une pile double avec mobilité

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1146271A (zh) * 1994-04-15 1997-03-26 诺基亚电信公司 微小区和宏小区之间带快速移动台检测的越区切换
US6175735B1 (en) * 1995-02-20 2001-01-16 Lucent Technologies Inc. Mobile radio communications system with improved handover facility
CN1283064A (zh) * 1999-09-23 2001-02-07 深圳市中兴通讯股份有限公司 确定移动终端越区切换的方法
CN101227705A (zh) * 2007-01-17 2008-07-23 华为技术有限公司 切换终端至宏小区的方法及系统、终端、接入节点和网关

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1146271A (zh) * 1994-04-15 1997-03-26 诺基亚电信公司 微小区和宏小区之间带快速移动台检测的越区切换
US6175735B1 (en) * 1995-02-20 2001-01-16 Lucent Technologies Inc. Mobile radio communications system with improved handover facility
CN1283064A (zh) * 1999-09-23 2001-02-07 深圳市中兴通讯股份有限公司 确定移动终端越区切换的方法
CN101227705A (zh) * 2007-01-17 2008-07-23 华为技术有限公司 切换终端至宏小区的方法及系统、终端、接入节点和网关

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103797847A (zh) * 2011-11-14 2014-05-14 富士通株式会社 不必要切换的判断方法以及基站
WO2013174173A1 (fr) * 2012-05-23 2013-11-28 华为技术有限公司 Procédé et station de base pour déterminer un transfert intercellulaire inutile
CN103428720A (zh) * 2012-05-23 2013-12-04 华为技术有限公司 确定不必要切换的方法和基站
US9813954B2 (en) 2012-05-23 2017-11-07 Huawei Technologies Co., Ltd. Method for determining unnecessary handover and base station
WO2024065439A1 (fr) * 2022-09-29 2024-04-04 Mediatek Singapore Pte. Ltd. Procédés et appareil de prise en charge de gestion de faisceau inter-du inter-cellule basée sur une pile double avec mobilité

Similar Documents

Publication Publication Date Title
US10681565B2 (en) Method for detecting cause of radio link failure or handover failure
EP2774415B1 (fr) Procédés et noeuds de réseau pour détecter un transfert intercellulaire après court séjour
EP2348771B1 (fr) Procédé et dispositif de distribution d'informations d'indication d'échec de transfert
KR101341303B1 (ko) 무선 접속 기술 간의 전환을 위한 단말의 통신 방법 및 그 단말
US9078183B2 (en) Data forwarding method and system for vertical handover
EP3032853B1 (fr) Interaction entre un réseau d'accès radio et un réseau locale sans fil et traitement de délestage correspondant
US9578549B2 (en) Method and apparatus for supporting RLF reason detection or handover failure reason detection
WO2013010464A1 (fr) Procédé et dispositif de rapport d'informations de cellules et d'ajustement de paramètre mobile de cellule
US9736744B2 (en) Method and apparatus for transmitting indication in wireless communication system
KR20160147785A (ko) 핸드오버 리포트 및 rlf 리포트를 전송하는 방법 및 장치
WO2012051903A1 (fr) Procédé et dispositif de commutation multi-porteuse
CN104769994A (zh) 当无线电链路故障已经发生时支持多个无线电接入技术的终端恢复的方法及其设备
KR20110020398A (ko) 광대역 무선통신 시스템에서 핸드오버 최적화를 위한 장치 및 방법
EP2830361A1 (fr) Procédé et appareil pour accéder à une cellule dans un système de communication sans fil
US10104595B2 (en) Method of automatically adjusting mobility parameter
WO2012152123A1 (fr) Procédé, système et réseau évolué de données par paquets à haut débit permettant un transfert intercellulaire entre différents réseaux
WO2012155595A1 (fr) Procédé, station de base et terminal pour récupérer une connexion de contrôle de ressources radio
WO2013174173A1 (fr) Procédé et station de base pour déterminer un transfert intercellulaire inutile
WO2012126288A1 (fr) Procédé, dispositif et système de gestion de brouillage
WO2013189310A1 (fr) Procédé de contrôle pour un système de radio cognitive, station de base, et relation de voisinage
US20090280813A1 (en) Handover Procedure Between Radio Access Networks
WO2013152669A1 (fr) Procédé et dispositif de détection de problème de mobilité lors de la commutation entre différents standards de réseau
WO2013020433A1 (fr) Procédé de commande de transfert intercellulaire de réseau, système de communication et dispositif associé
US20140349649A1 (en) Communication system
WO2010124461A1 (fr) Procédé et appareil de découverte d'un transfert rapide

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09843873

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09843873

Country of ref document: EP

Kind code of ref document: A1