WO2005120183A2 - Handover execution and communication resumption in wireless access system - Google Patents
Handover execution and communication resumption in wireless access system Download PDFInfo
- Publication number
- WO2005120183A2 WO2005120183A2 PCT/KR2005/001766 KR2005001766W WO2005120183A2 WO 2005120183 A2 WO2005120183 A2 WO 2005120183A2 KR 2005001766 W KR2005001766 W KR 2005001766W WO 2005120183 A2 WO2005120183 A2 WO 2005120183A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- handover
- target base
- mobile subscriber
- serving base
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 111
- 238000012790 confirmation Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 12
- 238000007781 pre-processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
-
- 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
-
- 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
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
Definitions
- the present invention relates generally to a wireless access system, and more
- the LEEE802.16e system is part of a global standardization for broadband wireless
- IEEE802.16e does not have a hierarchical structure of HLR, VLR, MSC,
- BSC BSC, RNC, etc. unlike second and third generation mobile communications systems, but
- MSS mobile subscriber station
- BS base station
- authentication authentication
- ASA server service authorization server
- PHY physical
- MAC control control
- Pre-processing for handover includes broadcasting associated information from a base
- processing also includes measuring a channel quality of the neighboring base station based
- the pre-processing also includes matching parameters between the base station and the neighboring base
- an initial mobile subscriber station power such as for example, an initial mobile subscriber station power, a time difference
- Network Topology Advertisement In network topology advertisement, the base station broadcasts information associated
- ADV MAC message thereby providing all mobile subscriber stations within the cell with
- MSS Scanning of Neighboring BS In MSS scanning of neighboring BS, a mobile subscriber station (MSS) scans a
- BS neighboring base station
- the BS from the BS via a MOB_SCN-REQ MAC message.
- the BS then transmits a
- MOB_SCN-RSP MAC message in response to the request to assign an interval for
- the BS may directly
- the MSS performs a ranging process with a BS to
- the MSS acquires basic information for
- the MSS performs BS scanning to select a
- the MSS and the BS transmit a RNG_REQ MAC message and a RNG_RSP MAC message, respectively, to set values such
- Transmission of the RNG_REQ MAC message is called an initial ranging
- a target BS When a handover is performed, a target BS accepts a new MSS and transmits items
- the MSS initiates handover with the neighboring BS
- a cell is changed to enable the MSS to make a new
- the BS is unable to determine a moving situation of
- a handover may be initiated by the MSS or the BS.
- the MSS Mobility Management Entity
- the BS Base Station
- the BS transmits a MOB_BSHO-REQ MAC message to the BS
- MOB_MSSHO-REQ MAC message to the BS. If the MSS transmits the MOB_MSSHO-REQ MAC message, the MSS preferentially
- MOB_MSSHO-REQ MAC message to be transmitted to a current serving BS.
- serving BS selects a candidate BS as a target BS for performing the handover.
- the BS receives the MOB_MSSHO-REQ MAC message from the
- the BS may allow the handover of the MSS after
- MSS/BS transmits a MOB_MSSHO/BSHO-RSP MAC message to inform the BS/MSS of a
- the MSS may cancel the handover.
- the MSS sets a
- the BS receives the message and cancels the proceeding handover. d. Termination with the Serving BS
- the MSS In termination with the serving BS, the MSS transmits the MOBJHO-IND MAC
- the MSS sets a
- the serving BS receives the MOBJHO-L D MAC message from the MSS and terminates a MAC state
- the serving BS also terminates an ARQ (automatic repeat
- the MSS is capable of rejecting a handover recommended by the BS.
- the BS receives the rejection message
- FIG. 1 is a diagram illustrating a handover process requested by a mobile subscriber
- MSS mobile station
- an MSS 11 performs a scanning procedure to measure qualities of
- the MSS needs to be performed based on results of the neighboring BS scanning procedure, the MSS
- SI 11 transmits a handover request message (MOB-MSS-HO-REQ) to a serving BS 12 (SI 11).
- MOB-MSS-HO-REQ handover request message
- the serving BS 12 receives the handover request message and transmits a handover
- pre-notification message (HO-pre-notification) including information that the MSS 11 has
- a neighboring BS such as for example, handover target BSs (target
- the handover pre-notification message includes an identifier
- MSS identifier (MSS identifier) of the MSS 11 requesting the handover, connection parameters,
- Each of the neighboring handover target BSs 13 and 14 receives the handover pre- notification message and transmits a handover pre-notification response message (HO-pre-
- the handover pre-notification response message may include
- the serving BS 12 selects one of the neighboring handover target BSs 13 and 14
- serving BS 12 then transmits a handover response message (MOB-BSHO-RSP), including
- the MSS 11 (SI 17).
- the serving BS 12 Upon receipt of the handover indicator message from the MSS 11, the serving BS 12
- the MSS 11 then executes a fast ranging (Fast Ranging_IE), a ranging request (RNG-
- target BS 14 becomes the serving BS 14 and the MSS 11 completes an initial network entry
- FIG. 2 is a diagram illustrating a handover process requested by a base station (BS).
- BS base station
- a serving BS 22 triggers a procedure (trigger-to-release-MSS) to initiate a handover process.
- the serving BS 22 then transmits a handover pre-notification message (HO-pre- notification) including information required for the handover of the MSS 21 to neighboring
- MSS identifier an identifier of the MSS 21 requesting the handover, connection
- Each of the neighboring handover target BSs 23 and 24 receive the handover pre-
- the handover pre-notification response message may include
- the serving BS 22 then transmits a handover request message to the MSS 21 based on
- handover request message includes information pertaining to the target BSs 23 and 24
- the MSS 21 then performs a neighboring BS scanning
- the serving BS 22 transmits a handover confirm message to
- the MSS 21 then transmits a handover indicator message (MOB-HO-L D) for
- the serving BS 22 releases its connection to the MSS 21
- the MSS 21 then executes a fast ranging (Fast RangingJE), a ranging request (RNG-
- FIG. 3 is a diagram illustrating a process by which an MSS re-enters a former serving
- BS such as in the case of a call drop.
- an MSS 31 performs a scanning procedure to measure qualities of
- the MSS needs to be performed based on results of the neighboring BS scanning procedure, the MSS
- the serving BS 32 receives the handover request message and transmits a handover
- pre-notification message (HO-pre-notification) including information that the MSS 31 has
- a neighboring BS such as for example, handover target BSs 33 and
- the handover pre-notification message includes an identifier (MSS
- Each of the neighboring handover target BSs 33 and 34 receive the handover pre-
- the handover pre-notification response message may include acknowledgement information pertaining to the handover pre-notification message and
- the serving BS 32 selects one of the neighboring handover target BSs 33 and 34
- serving BS 32 then transmits a handover response message (MOB-BSHO-RSP) including
- the MSS 31 information pertaining to the target BS for the handover to the MSS 31 (S317).
- the serving BS 32 (S318).
- the serving BS 32 Upon receipt of the handover indicator message, the serving BS
- the present invention is directed to handover execution
- An object of the present invention is to provide a method of efficiently resuming
- MSS mobile subscriber station
- performing handover operation in a wireless communication system includes
- the handover information comprises at least quality
- method also includes transmitting a handover indicator to the serving base station
- subscriber station determines whether to perform handover in response to the handover
- procedure comprises attempting to establish an uplink synchronization and power
- method also includes being released from the serving base station in response to a handover
- the method may also preferably include receiving a handover response from a serving
- the handover response comprises at least quality of
- method may also preferably include, in a mobile subscriber station initiated handover,
- the method may
- a handover also preferably include, in a service base station initiated handover, receiving a handover
- the mobile subscriber station may preferably be released from the serving base station
- subscriber station may preferably resume normal communication with the serving base
- the step of performing the ranging procedure may preferably include receiving a
- the handover indicator may preferably be an inter-base station backbone message.
- serving base station release may preferably include one of (1) serving base station release, (2) handover cancel, and (3)
- the communication system includes receiving a handover request from a mobile subscriber
- the method also includes
- the target base station while maintaining the first communication link with the serving base
- the method also includes releasing the mobile subscriber station or continuing
- the method also comprises transmitting a handover response upon the serving base
- the method also comprises receiving a
- the method also comprises performing a setup procedure between
- the method also comprises releasing the mobile
- the handover request may preferably comprise a possible handover target base station.
- the method may also preferably comprise receiving a handover complete message from the
- FIG. 1 is a diagram illustrating a handover process requested by a mobile subscriber
- MSS mobile station
- FIG. 2 is a diagram illustrating a handover process requested by a base station (BS).
- FIG. 3 is a diagram illustrating a process by which an MSS re-enters a former serving
- BS such as in the case of a call drop.
- FIG. 4 is a diagram illustrating a handover process initiated by a MSS, according to
- FIG. 5 is a diagram illustrating a handover process initiated by a BS, according to one
- FIG. 6 is a diagram illustrating a process by which an MSS resumes communications
- FIG. 4 is a diagram illustrating a handover process initiated by a mobile subscriber
- MSS mobile station
- an MSS 41 performs a scanning procedure to measure qualities of
- the MSS 41 may transmit a handover request message (e.g., MOB-MSS-HO-
- the serving BS 42 receives the handover request message and may transmit a handover pre-notification message (e.g., HO-pre-notification) to a neighboring BS, such as
- a handover pre-notification message e.g., HO-pre-notification
- handover target BSs target BSs 43 and 44 (S412, S413).
- notification message may preferably include information that the MSS 41 has requested a
- MSS identifier an identifier of the MSS requesting the handover
- connection parameters connection parameters, capabilities, a required bandwidth, and quality of service
- Each of the neighboring handover target BSs 43 and 44 may receive the handover pre-
- a handover pre-notification response message (e.g.,
- the handover pre-notification response message may
- the serving BS 42 may select one of the neighboring handover target BSs 43 and 44
- the handover pre-notification response message may transmit a handover
- BS 42 may transmit a handover response message (e.g., MOB-BSHO-RSP), including
- the MSS 41 (S417).
- the handover indicator message (MOB_HO_IND) may include information to notify
- the former serving BS 42 to resume communication with the MSS 41 if the handover of the
- MSS 41 to the handover target BS fails.
- the MSS 41 may preferably execute a fast ranging (e.g., Fast RangingJE), a ranging request (e.g.,
- RNG-REQ a ranging response
- RNG-RSP a ranging response
- the target BS 44 is selected for the
- the ranging request may preferably require uplink synchronization between the
- the fast ranging may preferably comprise a frame slot
- the handover target BS BS
- the former serving BS 42 may preferably recognize the successful
- the handover complete message may preferably be an inter-base station backbone
- the former serving BS 42 Using the handover complete message, the former serving BS
- (failure reason) may preferably be set to be delivered to the former serving BS 42.
- failure reason may be, for example, a call drop that causes the MSS 41 to fail in accessing
- the former serving BS 42 may
- FIG. 5 is a diagram illustrating a handover process initiated by a BS, according to one
- a serving BS 52 triggers a procedure (e.g., trigger-to-release-
- the serving BS 52 may transmit a handover pre-notification message (e.g., HO-pre-)
- a handover pre-notification message e.g., HO-pre-
- the handover pre-notification message may include an identifier (MSS identifier) of the MSS requesting the handover, connection
- Each of the neighboring handover target BSs 53 and 54 may receive the handover pre-
- a handover pre-notification response message (e.g.,
- the handover pre-notification response message may
- the serving BS 52 may preferably transmit a handover response message to the MSS
- the handover response message may preferably include information pertaining to
- the MSS 51 may preferably perform a
- the MSS 51 may transmit a handover response message
- the serving BS 52 including target BS information for the handover to the serving BS 52 (S517).
- BS 52 also may transmit a handover confirm message to the target BS 54, with which the
- MSS 51 determines to perform the handover (S518).
- the MSS 51 may transmit a handover indicator message (e.g., MOB-HO-L D) to a handover indicator message.
- a handover indicator message e.g., MOB-HO-L D
- the handover indicator message may preferably be configured as shown in Table 1.
- the MSS 51 Before the connection of the MSS 51 to the serving BS 52 is released, the MSS 51
- a fast ranging e.g., Fast Ranging_IE
- a ranging request e.g.,
- RNG-REQ a ranging response
- RNG-RSP a ranging response
- target BS 54 may transmit a handover result to the serving BS 52 via a handover complete
- the handover complete message may preferably be
- the former serving BS 52 may preferably recognize
- FIG. 6 is a diagram illustrating a process by which an MSS resumes communications
- the handover failure may be due to, for example, a call drop or other
- an MSS 61 performs a scanning procedure to measure qualities of
- the MSS needs to be performed based on results of the neighboring BS scanning procedure, the MSS
- 61 may preferably transmit a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e.g., MOB-MSS-HO-REQ) to a handover request message (e
- the serving BS 62 receives the handover request message and may transmit a handover pre-notification message (e.g., HO-pre-notification) including information that
- the MSS 61 has requested a handover to a neighboring BS, such as for example, handover
- the handover pre-notification message may also
- MSS identifier an identifier of the MSS requesting the handover, connection
- Each of the neighboring handover target BSs 63 and 64 may receive the handover pre-
- a handover pre-notification response message (e.g.,
- the handover pre-notification response message may
- the serving BS 62 may preferably select one of the neighboring handover target BSs
- handover confirm message (e.g., HO-confirm) to the selected target BS 63 or 64 (S616).
- the serving BS 62 may also transmit a handover response message (e.g., MOB-BSHO-
- RSP radio signal processing unit
- MSS 61 MSS 61
- the MSS 61 receives the handover response message and may transmit a handover
- a handover failure such as for example a call drop, occurs (S619).
- the MSS 61 may preferably recognize the handover failure and may notify the handover target BS 64.
- the MSS 61 may also cancel the handover from the former serving BS 62 and may
- the MSS 61 may
- the exemplary handover indicator message shown in Table 1 may preferably be used.
- the communication system includes communicating with a serving base station through a first
- the method also includes transmitting a handover indicator to the
- the mobile subscriber station determines whether to perform handover in response
- ranging procedure comprises attempting to establish an uplink synchronization and power
- the method also includes being released from the serving base station in response to a handover
- the method may also preferably include receiving a handover response from a serving
- the handover response comprises at least quality of
- method may also preferably include, in a mobile subscriber station initiated handover,
- the method may
- a handover also preferably include, in a service base station initiated handover, receiving a handover
- the mobile subscriber station may preferably be released from the serving base station
- subscriber station may preferably resume normal communication with the serving base
- the step of performing the ranging procedure may preferably include receiving a
- the handover indicator may preferably be an inter-base station backbone message.
- serving base station release may preferably include one of (1) serving base station release, (2) handover cancel, and (3)
- the communication system includes receiving a handover request from a mobile subscriber
- the method also includes
- the target base station while maintaining the first communication link with the serving base
- the method also includes releasing the mobile subscriber station or continuing
- the method also comprises transmitting a handover response upon the serving base
- the method also comprises receiving a handover response from the mobile subscriber station indicating a handover operation to
- the method also comprises performing a setup procedure between
- the method also comprises releasing the mobile
- the handover request may preferably comprise a possible handover target base station.
- the method may also preferably comprise receiving a handover complete message from the
- the present invention may efficiently execute a handover and/or resume
- MSS mobile subscriber station
- the present invention can be applied to a broadband wireless access system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005251648A AU2005251648B2 (en) | 2004-06-10 | 2005-06-10 | Handover execution and communication resumption in wireless access system |
BRPI0511375-0A BRPI0511375A (en) | 2004-06-10 | 2005-06-10 | connection forwarding and resuming communication on a wireless access system |
CN2005800188965A CN101124840B (en) | 2004-06-10 | 2005-06-10 | Handover execution and communication resumption in wireless access system |
CA2568291A CA2568291C (en) | 2004-06-10 | 2005-06-10 | Handover execution and communication resumption in wireless access system |
EP05750817.8A EP1779596B1 (en) | 2004-06-10 | 2005-06-10 | Handover execution and communication resumption in wireless access system |
JP2007527020A JP4750118B2 (en) | 2004-06-10 | 2005-06-10 | Method for performing handover and restarting communication in wireless connection system |
IL179882A IL179882A (en) | 2004-06-10 | 2006-12-06 | Handover execution and communication resumption in a wireless access system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-0042642 | 2004-06-10 | ||
KR1020040042642A KR100893860B1 (en) | 2004-06-10 | 2004-06-10 | Method for Handover and Resuem Communication in Failing Handover applying to Broadband Wireless Access System |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005120183A2 true WO2005120183A2 (en) | 2005-12-22 |
WO2005120183A3 WO2005120183A3 (en) | 2007-03-08 |
Family
ID=35503588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2005/001766 WO2005120183A2 (en) | 2004-06-10 | 2005-06-10 | Handover execution and communication resumption in wireless access system |
Country Status (10)
Country | Link |
---|---|
US (6) | US7818006B2 (en) |
EP (2) | EP2031924B1 (en) |
JP (2) | JP4750118B2 (en) |
KR (1) | KR100893860B1 (en) |
CN (2) | CN101448288B (en) |
AU (1) | AU2005251648B2 (en) |
BR (1) | BRPI0511375A (en) |
CA (1) | CA2568291C (en) |
IL (1) | IL179882A (en) |
WO (1) | WO2005120183A2 (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1871128A1 (en) * | 2006-06-20 | 2007-12-26 | Alcatel Lucent | A method for a handover procedure of a mobile terminal, a base station and a network therefor |
WO2008014657A1 (en) * | 2006-07-27 | 2008-02-07 | Huawei Technologies Co., Ltd. | A method, system, terminal and network for packet handover processing |
WO2008081251A3 (en) * | 2006-12-28 | 2008-08-28 | Nokia Corp | Apparatus, method and computer program product providing faster handover in mobile wimax system |
WO2009003067A2 (en) | 2007-06-25 | 2008-12-31 | Qualcomm Incorporated | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
JP2009500972A (en) * | 2005-07-12 | 2009-01-08 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Method and system for handover negotiation in a wireless network |
WO2010017961A1 (en) | 2008-08-11 | 2010-02-18 | Alcatel Lucent | Handover method and apparatus in a wireless communications network |
US20100157945A1 (en) * | 2008-12-24 | 2010-06-24 | Samsung Electronics Co., Ltd. | Apparatus and method for changing serving cell in a high speed wireless communication system |
JP2011501611A (en) * | 2007-10-25 | 2011-01-06 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Reduction of handover interruption in WiMax |
WO2011017944A1 (en) * | 2009-08-11 | 2011-02-17 | 中兴通讯股份有限公司 | Method and system for handling handoff failures to closed subscriber group cell |
JP2011511482A (en) * | 2007-08-14 | 2011-04-07 | アルカテル−ルーセント ユーエスエー インコーポレーテッド | Method for transferring uplink power control parameters during handover |
CN101345986B (en) * | 2007-07-12 | 2011-05-04 | 华为技术有限公司 | Processing method and base station for switching failure in communication network |
US8509799B2 (en) | 2005-09-19 | 2013-08-13 | Qualcomm Incorporated | Provision of QoS treatment based upon multiple requests |
US8588777B2 (en) | 1998-09-22 | 2013-11-19 | Qualcomm Incorporated | Method and apparatus for robust handoff in wireless communication systems |
EP2667660A1 (en) * | 2006-06-20 | 2013-11-27 | InterDigital Technology Corporation | Recovering from an unsuccessful handover in a lte system |
US8615241B2 (en) | 2010-04-09 | 2013-12-24 | Qualcomm Incorporated | Methods and apparatus for facilitating robust forward handover in long term evolution (LTE) communication systems |
US8724589B2 (en) | 2009-06-16 | 2014-05-13 | Fujitsu Limited | Wireless communication system |
WO2014082658A1 (en) * | 2012-11-27 | 2014-06-05 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association provisioning support method and system |
WO2014082659A1 (en) * | 2012-11-27 | 2014-06-05 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association clearing support method and system |
US8830818B2 (en) | 2007-06-07 | 2014-09-09 | Qualcomm Incorporated | Forward handover under radio link failure |
US8886180B2 (en) | 2003-01-31 | 2014-11-11 | Qualcomm Incorporated | Enhanced techniques for using core based nodes for state transfer |
US8923864B2 (en) | 2011-05-26 | 2014-12-30 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association provisioning support method and system |
US8929909B2 (en) | 2008-01-04 | 2015-01-06 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association clearing support method and system |
US8982835B2 (en) | 2005-09-19 | 2015-03-17 | Qualcomm Incorporated | Provision of a move indication to a resource requester |
US8982778B2 (en) | 2005-09-19 | 2015-03-17 | Qualcomm Incorporated | Packet routing in a wireless communications environment |
US8989143B2 (en) | 2008-06-30 | 2015-03-24 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing a handover in an evolved universal terrestrial radio access network |
US9066344B2 (en) | 2005-09-19 | 2015-06-23 | Qualcomm Incorporated | State synchronization of access routers |
US9078084B2 (en) | 2005-12-22 | 2015-07-07 | Qualcomm Incorporated | Method and apparatus for end node assisted neighbor discovery |
US9083355B2 (en) | 2006-02-24 | 2015-07-14 | Qualcomm Incorporated | Method and apparatus for end node assisted neighbor discovery |
US9155008B2 (en) | 2007-03-26 | 2015-10-06 | Qualcomm Incorporated | Apparatus and method of performing a handoff in a communication network |
US9344919B2 (en) | 2008-03-04 | 2016-05-17 | Interdigital Patent Holdings, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention-based preambles during handover |
US9398511B2 (en) | 2008-03-20 | 2016-07-19 | Interdigital Patent Holdings, Inc. | Timing and cell specific system information handling for handover in evolved UTRA |
US9736752B2 (en) | 2005-12-22 | 2017-08-15 | Qualcomm Incorporated | Communications methods and apparatus using physical attachment point identifiers which support dual communications links |
EP3272053B1 (en) * | 2015-03-14 | 2020-09-30 | Qualcomm Incorporated | Reciprocal channel sounding reference signal allocation and configuration |
Families Citing this family (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2393373A1 (en) | 2002-07-15 | 2004-01-15 | Anthony Gerkis | Apparatus, system and method for the transmission of data with different qos attributes. |
KR100893860B1 (en) * | 2004-06-10 | 2009-04-20 | 엘지전자 주식회사 | Method for Handover and Resuem Communication in Failing Handover applying to Broadband Wireless Access System |
KR100877136B1 (en) * | 2005-06-23 | 2009-01-07 | 삼성전자주식회사 | Apparatus and method for processing hand-off between heterogeneous networks in wireless communication system |
KR100703416B1 (en) * | 2005-07-06 | 2007-04-03 | 삼성전자주식회사 | System and method for notifying completion of a network re-entry procedure in a communication system |
GB0514438D0 (en) * | 2005-07-15 | 2005-08-17 | Ip Access Ltd | Cellular radio tellecommunication handover system |
US20070127475A1 (en) * | 2005-12-05 | 2007-06-07 | Ravi Kuchibhotla | Method and apparatus for switching nodes to a new packet data connection point |
KR20070098385A (en) * | 2006-03-29 | 2007-10-05 | 삼성전자주식회사 | System and method for achieving in communication system |
US8259688B2 (en) | 2006-09-01 | 2012-09-04 | Wi-Lan Inc. | Pre-allocated random access identifiers |
US8170564B2 (en) * | 2006-09-04 | 2012-05-01 | Panasonic Corporation | Communication terminal apparatus, network system and handover method |
EP2080388A2 (en) * | 2006-10-31 | 2009-07-22 | Interdigital Technology Corporation | Providing feedback information to target node b during a serving cell change |
KR100970445B1 (en) * | 2006-12-04 | 2010-07-16 | 한국전자통신연구원 | Method of resource management for handover in wireless communication system |
CN101198156B (en) * | 2006-12-08 | 2012-10-31 | 昂达博思公司 | System and method for managing radio base station switch information |
KR101386213B1 (en) * | 2007-01-08 | 2014-04-29 | 광운대학교 산학협력단 | Method for deregistering a Relay Station and multi-hop relay system for the same |
CN101589643B (en) * | 2007-01-22 | 2012-05-23 | 富士通株式会社 | Intermittent communication system, base station apparatus, and mobile station apparatus |
KR101348210B1 (en) * | 2007-02-07 | 2014-01-08 | 엘지전자 주식회사 | Handover method and terminal thereof |
PT2027747E (en) * | 2007-02-12 | 2011-09-19 | Sigram Schindler Beteiligungs Gmbh | Netsurfing in voip calls by means of managed handovers (mhos) |
US8891489B2 (en) * | 2007-03-19 | 2014-11-18 | Qualcomm Incorporated | Handover mechanism that exploits uplink channel quality of a target cell |
KR101015739B1 (en) * | 2007-06-05 | 2011-02-22 | 고려대학교 산학협력단 | Handover method in wireless mobile communication system and system therefor |
US20080311915A1 (en) * | 2007-06-13 | 2008-12-18 | Samsung Electronics Co. Ltd. | System and method for performing handover in a wireless communication system |
KR101406363B1 (en) * | 2007-06-22 | 2014-06-12 | 삼성전자주식회사 | Handover method in wireless mobile communication system |
CN101415203B (en) * | 2007-10-20 | 2010-06-23 | 华为技术有限公司 | Method and apparatus for determining scanning object |
EP2214439A1 (en) * | 2007-10-31 | 2010-08-04 | Mitsubishi Electric Corporation | Mobile communication system, base station, mobile station, and base station installation method |
WO2009061151A2 (en) * | 2007-11-07 | 2009-05-14 | Electronics And Telecommunications Research Institute | Method and apparatus for the handover |
KR101472571B1 (en) * | 2007-11-07 | 2014-12-16 | 한국전자통신연구원 | Method and Apparatus for the handover |
JP5136090B2 (en) * | 2008-01-30 | 2013-02-06 | 富士通株式会社 | Handover method, mobile terminal, and radio communication system in radio communication system |
KR101512774B1 (en) * | 2008-01-31 | 2015-04-17 | 삼성전자주식회사 | Apparatus and method for performming handover of terminal in wireless communication system |
JP5341108B2 (en) * | 2008-02-05 | 2013-11-13 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Handover based on prediction information from the target node |
US8477737B2 (en) * | 2008-03-26 | 2013-07-02 | Alcatel Lucent | System and method to improve uplink coverage in multi-carrier systems |
KR101437693B1 (en) * | 2008-03-31 | 2014-09-03 | 엘지전자 주식회사 | Method of Performing A Handover Procedure |
US20090325573A1 (en) * | 2008-05-20 | 2009-12-31 | Symbol Technologies, Inc. | Methods and apparatus for roaming in a wireless network |
CN102077647B (en) | 2008-07-01 | 2016-01-20 | 三星电子株式会社 | For performing the Apparatus and method for of switching in a wireless communication system |
KR101496891B1 (en) * | 2008-08-18 | 2015-03-02 | 삼성전자주식회사 | Method and apparatus for the reduction of serving cell change delay in mobile telecommunication system |
JP5347403B2 (en) * | 2008-09-22 | 2013-11-20 | ソニー株式会社 | Information processing apparatus and method, program, and information processing system |
CN101730158B (en) * | 2008-10-22 | 2013-06-05 | 中兴通讯股份有限公司 | Base station switching method and base station |
US9491671B2 (en) | 2008-11-17 | 2016-11-08 | Qualcomm Incorporated | Radio link failure reporting |
US9271204B2 (en) * | 2008-11-17 | 2016-02-23 | Qualcomm Incorporated | Mobility management based on radio link failure reporting |
KR20100072108A (en) * | 2008-12-03 | 2010-06-30 | 삼성전자주식회사 | Method and system providing of emergency call service in a unlicensed mobile access network |
US8520632B2 (en) * | 2008-12-29 | 2013-08-27 | Qualcomm Incorporated | Method and apparatus for synchronization during a handover failure in a wireless communication system |
EP2203014B1 (en) * | 2008-12-29 | 2014-09-10 | Alcatel Lucent | Handover method and apparatus thereof |
KR101687618B1 (en) * | 2009-03-25 | 2016-12-19 | 엘지전자 주식회사 | Method and apparatus for handover in a mobile communication system |
TWI424760B (en) * | 2009-04-08 | 2014-01-21 | Ind Tech Res Inst | Method for mobile communication and system thereof |
US8666427B2 (en) | 2009-04-08 | 2014-03-04 | Industrial Technology Research Institute | Method for mobile communication and system thereof |
EP2244502B1 (en) * | 2009-04-20 | 2011-06-08 | Alcatel Lucent | Handover method |
CN101883406B (en) * | 2009-05-07 | 2015-04-08 | 株式会社Ntt都科摩 | Switching method, mobile terminal and base station |
CN101932050B (en) * | 2009-06-19 | 2013-05-22 | 电信科学技术研究院 | Method, system and device for switching user equipment (UE) among nodes on network side |
CN102026320B (en) * | 2009-09-22 | 2013-10-09 | 华为终端有限公司 | Network switching method, system and device |
EP2317805B1 (en) * | 2009-10-29 | 2014-04-23 | Mitsubishi Electric R&D Centre Europe B.V. | Method and system for selecting at least one wireless telecommunication device for a coordination session |
WO2011059524A1 (en) * | 2009-11-10 | 2011-05-19 | Qualcomm Incorporated | Method and apparatus to support hsdpa ack/cqi operation during baton handover in td-scdma systems |
CN101990779B (en) * | 2009-11-12 | 2015-04-01 | 高通股份有限公司 | Method and apparatus for correcting power in uplink synchronization in td-scdma handover |
CN102123457B (en) * | 2010-01-11 | 2016-04-13 | 中兴通讯股份有限公司 | Changing method and terminal |
CN102123458A (en) * | 2010-01-11 | 2011-07-13 | 中兴通讯股份有限公司 | Radio link failure processing method and terminal |
EP2524435A4 (en) * | 2010-01-14 | 2017-08-09 | Nokia Technologies Oy | Systems, methods, and apparatuses for modem coordination |
US8478258B2 (en) * | 2010-03-05 | 2013-07-02 | Intel Corporation | Techniques to reduce false detection of control channel messages in a wireless network |
KR101778958B1 (en) | 2010-03-09 | 2017-09-18 | 삼성전자주식회사 | Communication method of a terminal and a access point for power saving of multiuser |
CN103404199B (en) * | 2010-10-29 | 2017-05-24 | 华为技术有限公司 | Design and method to enable single radio handover |
WO2012096505A2 (en) * | 2011-01-11 | 2012-07-19 | 엘지전자 주식회사 | Control apparatus, control target apparatus, and method for operating the control apparatus and the control target apparatus in multiple networks |
US20130044731A1 (en) * | 2011-08-15 | 2013-02-21 | Qualcomm Incorporated | Proactive Feedback Transmissions During Handover Procedures |
US20130107860A1 (en) * | 2011-10-27 | 2013-05-02 | Qualcomm Incorporated | REDUCING SERVICE INTERRUPTION OF VOICE OVER INTERNET PROTOCOL (VoIP) CALLS DUE TO INTER-RADIO ACCESS TECHNOLOGY (RAT) HANDOVER |
WO2013104651A1 (en) * | 2012-01-10 | 2013-07-18 | Nokia Siemens Networks Oy | Handling handover requests in a communications system |
US9681340B2 (en) * | 2012-05-14 | 2017-06-13 | Nokia Solutions And Networks Oy | Signaling framework for assistance information |
CN103428783B (en) * | 2012-05-22 | 2018-06-12 | 北京三星通信技术研究有限公司 | The method for supporting detection RLF or handover failure reason |
CN103269357B (en) * | 2013-04-24 | 2016-09-14 | 深圳市金立通信设备有限公司 | A kind of method and device realizing application service High Availabitity |
WO2014178738A1 (en) | 2013-05-02 | 2014-11-06 | Instytut Nafty I Gazu - Panstwowy Instytut Badawczy | Water-soluble corrosion inhibitor for protection of lifting casings and natural gas pipelines as well as the method of its production. |
US9485725B2 (en) * | 2014-06-25 | 2016-11-01 | Qatar University Qstp-B | Methods and system for dynamically switching off/on of base stations |
EP3316630B1 (en) * | 2015-08-07 | 2022-03-30 | Huawei Technologies Co., Ltd. | Time synchronization method, device and system |
WO2018172548A1 (en) * | 2017-03-24 | 2018-09-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Qos flows inactivity counters |
CN111491345B (en) | 2017-08-11 | 2021-04-20 | 华为技术有限公司 | Communication method, access network device, and computer-readable storage medium |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6021333A (en) * | 1993-11-01 | 2000-02-01 | Omnipoint Corporation | Method and system for transferring information within a mobile communication system |
US6055427A (en) | 1996-07-18 | 2000-04-25 | Nokia Telecommunications Oy | Hard handoff and a radio system |
JPH10290475A (en) * | 1997-02-12 | 1998-10-27 | Fujitsu Ltd | Mobile communication system |
DE69942401D1 (en) * | 1998-04-23 | 2010-07-01 | Mitsubishi Electric Corp | A method of monitoring a control channel of another system during a quiet period in a CDMA cellular communication system |
DE19900436B4 (en) * | 1999-01-08 | 2016-12-01 | Ipcom Gmbh & Co. Kg | Handover method, mobile station for handover and base station for handover |
JP3338809B2 (en) * | 1999-10-26 | 2002-10-28 | 日本電気通信システム株式会社 | Mobile telephone communication system and channel switching method between mobile telephone communication systems |
US6438117B1 (en) * | 2000-01-07 | 2002-08-20 | Qualcomm Incorporated | Base station synchronization for handover in a hybrid GSM/CDMA network |
US6542744B1 (en) | 2000-06-20 | 2003-04-01 | Motorola, Inc. | Handoff in a cellular network |
KR100729425B1 (en) * | 2000-08-09 | 2007-06-15 | 에스케이 텔레콤주식회사 | Handoff method in wireless communication system supporting USTS |
US6892071B2 (en) * | 2000-08-09 | 2005-05-10 | Sk Telecom Co., Ltd. | Handover method in wireless telecommunication system supporting USTS |
EP1327374B1 (en) * | 2000-10-09 | 2009-07-22 | Spyder Navigations L.L.C. | Service priorities in multi-cell network |
KR100464019B1 (en) | 2000-12-29 | 2004-12-30 | 엘지전자 주식회사 | Pronunciation string display method at the time of edit for voice recognizing apparatus |
JP2002232929A (en) * | 2001-02-01 | 2002-08-16 | Ntt Docomo Inc | Hand-over control method, mobile station and communication controller |
AU2002305404A1 (en) * | 2001-05-02 | 2002-11-11 | Linkair Communications, Inc. | Pre-synchronization handoff mechanisms for wireless communication networks |
US6961572B2 (en) * | 2001-12-20 | 2005-11-01 | Motorola, Inc. | Method and apparatus for base-initiated, CDMA-dispatch soft handoff |
KR100447339B1 (en) * | 2001-12-28 | 2004-09-07 | 에스케이 텔레콤주식회사 | Hand-over controlling system and method thereof in mobile telecommunication system |
US7110376B2 (en) * | 2002-04-10 | 2006-09-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for improved cell detection |
US20040058678A1 (en) * | 2002-09-23 | 2004-03-25 | Detorbal Rene Fernand Emile | Method and apparatus for facilitating handovers for a group of mobile radios |
AU2003271881A1 (en) * | 2002-10-04 | 2004-04-23 | M-Stack Limited | Access stratum manager |
CN1157969C (en) | 2002-12-13 | 2004-07-14 | 大唐移动通信设备有限公司 | Switching method used in mobile comunication system |
JP4416792B2 (en) * | 2003-08-06 | 2010-02-17 | パナソニック株式会社 | Terminal apparatus and method for master station transfer in media access communication system |
KR100689508B1 (en) * | 2003-09-04 | 2007-03-02 | 삼성전자주식회사 | Method for performing handover in a communication system |
US8396500B2 (en) * | 2003-10-27 | 2013-03-12 | Fujitsu Limted | Connection destination base station determination device |
CA2543384C (en) * | 2003-11-10 | 2013-12-24 | Day International, Inc. | Printing blanket construction and method of making |
KR100827105B1 (en) * | 2004-02-13 | 2008-05-02 | 삼성전자주식회사 | Method and apparatus for ranging to support fast handover in broadband wireless communication system |
CN1951037A (en) * | 2004-05-07 | 2007-04-18 | 三星电子株式会社 | System and method for handover capable of minimizing service delay in broadband wireless access communication system |
KR100893860B1 (en) * | 2004-06-10 | 2009-04-20 | 엘지전자 주식회사 | Method for Handover and Resuem Communication in Failing Handover applying to Broadband Wireless Access System |
US20060166677A1 (en) * | 2005-01-27 | 2006-07-27 | Lucent Technologies, Inc. | Balancing load of cells in inter-frequency handover of wireless communications |
US20060276189A1 (en) * | 2005-04-01 | 2006-12-07 | Interdigital Technology Corporation | Supporting inter-technology handover using IEEE 802.16 handover procedures |
US20090275453A1 (en) * | 2008-04-30 | 2009-11-05 | Yu-Lang Wu | Roller for Various Machines and Apparatus |
US8295775B2 (en) * | 2008-05-01 | 2012-10-23 | Broadcom Corporation | Determining a handoff metric |
-
2004
- 2004-06-10 KR KR1020040042642A patent/KR100893860B1/en not_active IP Right Cessation
-
2005
- 2005-06-10 AU AU2005251648A patent/AU2005251648B2/en not_active Ceased
- 2005-06-10 EP EP08171566.6A patent/EP2031924B1/en not_active Not-in-force
- 2005-06-10 CN CN2008101838947A patent/CN101448288B/en not_active Expired - Fee Related
- 2005-06-10 BR BRPI0511375-0A patent/BRPI0511375A/en not_active IP Right Cessation
- 2005-06-10 CA CA2568291A patent/CA2568291C/en not_active Expired - Fee Related
- 2005-06-10 CN CN2005800188965A patent/CN101124840B/en not_active Expired - Fee Related
- 2005-06-10 WO PCT/KR2005/001766 patent/WO2005120183A2/en active Application Filing
- 2005-06-10 US US11/150,316 patent/US7818006B2/en active Active
- 2005-06-10 JP JP2007527020A patent/JP4750118B2/en not_active Expired - Fee Related
- 2005-06-10 EP EP05750817.8A patent/EP1779596B1/en not_active Not-in-force
-
2006
- 2006-10-13 US US11/549,607 patent/US7890106B2/en active Active
- 2006-12-06 IL IL179882A patent/IL179882A/en active IP Right Grant
-
2009
- 2009-01-13 JP JP2009005155A patent/JP4750190B2/en not_active Expired - Fee Related
- 2009-03-17 US US12/405,977 patent/US7890107B2/en active Active
- 2009-03-18 US US12/406,785 patent/US7885656B2/en active Active
- 2009-03-18 US US12/406,853 patent/US7933601B2/en active Active
- 2009-03-18 US US12/406,500 patent/US7890108B2/en active Active
Non-Patent Citations (1)
Title |
---|
None |
Cited By (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8588777B2 (en) | 1998-09-22 | 2013-11-19 | Qualcomm Incorporated | Method and apparatus for robust handoff in wireless communication systems |
US8886180B2 (en) | 2003-01-31 | 2014-11-11 | Qualcomm Incorporated | Enhanced techniques for using core based nodes for state transfer |
US11129062B2 (en) | 2004-08-04 | 2021-09-21 | Qualcomm Incorporated | Enhanced techniques for using core based nodes for state transfer |
JP2009500972A (en) * | 2005-07-12 | 2009-01-08 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Method and system for handover negotiation in a wireless network |
US8509799B2 (en) | 2005-09-19 | 2013-08-13 | Qualcomm Incorporated | Provision of QoS treatment based upon multiple requests |
US9066344B2 (en) | 2005-09-19 | 2015-06-23 | Qualcomm Incorporated | State synchronization of access routers |
US8982778B2 (en) | 2005-09-19 | 2015-03-17 | Qualcomm Incorporated | Packet routing in a wireless communications environment |
US8982835B2 (en) | 2005-09-19 | 2015-03-17 | Qualcomm Incorporated | Provision of a move indication to a resource requester |
US9313784B2 (en) | 2005-09-19 | 2016-04-12 | Qualcomm Incorporated | State synchronization of access routers |
US9078084B2 (en) | 2005-12-22 | 2015-07-07 | Qualcomm Incorporated | Method and apparatus for end node assisted neighbor discovery |
US9736752B2 (en) | 2005-12-22 | 2017-08-15 | Qualcomm Incorporated | Communications methods and apparatus using physical attachment point identifiers which support dual communications links |
US9083355B2 (en) | 2006-02-24 | 2015-07-14 | Qualcomm Incorporated | Method and apparatus for end node assisted neighbor discovery |
US9113374B2 (en) | 2006-06-20 | 2015-08-18 | Interdigital Technology Corporation | Methods and system for performing handover in a wireless communication system |
EP2667660A1 (en) * | 2006-06-20 | 2013-11-27 | InterDigital Technology Corporation | Recovering from an unsuccessful handover in a lte system |
US10880791B2 (en) | 2006-06-20 | 2020-12-29 | Interdigital Technology Corporation | Methods and system for performing handover in a wireless communication system |
WO2007147703A1 (en) * | 2006-06-20 | 2007-12-27 | Alcatel Lucent | A method for a handover procedure of a user terminal on radio interfaces, a base station and a network therefor |
EP1871128A1 (en) * | 2006-06-20 | 2007-12-26 | Alcatel Lucent | A method for a handover procedure of a mobile terminal, a base station and a network therefor |
US8886191B2 (en) | 2006-06-20 | 2014-11-11 | Interdigital Technology Corporation | Methods and system for performing handover in a wireless communication system |
JP2016007086A (en) * | 2006-06-20 | 2016-01-14 | インターデイジタル テクノロジー コーポレーション | Method and system for performing handover in wireless communication system |
US8300595B2 (en) | 2006-06-20 | 2012-10-30 | Alcatel Lucent | Method for handover procedure of user terminal on radio interfaces, a base station and a network therefor |
CN101102598B (en) * | 2006-06-20 | 2012-11-21 | 阿尔卡特朗讯 | A method for a handover procedure of a user terminal on radio interfaces, a base station and a network therefor |
US11582650B2 (en) | 2006-06-20 | 2023-02-14 | Interdigital Technology Corporation | Methods and system for performing handover in a wireless communication system |
CN1889785B (en) * | 2006-07-27 | 2010-05-12 | 华为技术有限公司 | Method, system and network for processing switch failure in group switching process |
WO2008014657A1 (en) * | 2006-07-27 | 2008-02-07 | Huawei Technologies Co., Ltd. | A method, system, terminal and network for packet handover processing |
EP1933578A1 (en) | 2006-07-27 | 2008-06-18 | Huawei Technologies Co., Ltd. | Method, system, terminal and network for PS handover processing |
TWI420928B (en) * | 2006-12-28 | 2013-12-21 | Nokia Corp | Apparatus, method and computer program product providing faster handover in mobile wimax system |
WO2008081251A3 (en) * | 2006-12-28 | 2008-08-28 | Nokia Corp | Apparatus, method and computer program product providing faster handover in mobile wimax system |
US9155008B2 (en) | 2007-03-26 | 2015-10-06 | Qualcomm Incorporated | Apparatus and method of performing a handoff in a communication network |
US8830818B2 (en) | 2007-06-07 | 2014-09-09 | Qualcomm Incorporated | Forward handover under radio link failure |
WO2009003067A3 (en) * | 2007-06-25 | 2009-02-19 | Qualcomm Inc | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
JP2010531627A (en) * | 2007-06-25 | 2010-09-24 | クゥアルコム・インコーポレイテッド | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
JP2012138922A (en) * | 2007-06-25 | 2012-07-19 | Qualcomm Inc | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
EP2364044A1 (en) * | 2007-06-25 | 2011-09-07 | Qualcomm Incorporated | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
WO2009003067A2 (en) | 2007-06-25 | 2008-12-31 | Qualcomm Incorporated | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
US9094173B2 (en) | 2007-06-25 | 2015-07-28 | Qualcomm Incorporated | Recovery from handoff error due to false detection of handoff completion signal at access terminal |
RU2474075C2 (en) * | 2007-06-25 | 2013-01-27 | Квэлкомм Инкорпорейтед | Recovery from handover error due to false detection of handover completion signal at access terminal |
CN101689966A (en) * | 2007-06-25 | 2010-03-31 | 高通股份有限公司 | Recover from surveying in the handoff error that is caused owing to the flase drop of the handoff completion signal that accesses terminal |
CN101345986B (en) * | 2007-07-12 | 2011-05-04 | 华为技术有限公司 | Processing method and base station for switching failure in communication network |
JP2011511482A (en) * | 2007-08-14 | 2011-04-07 | アルカテル−ルーセント ユーエスエー インコーポレーテッド | Method for transferring uplink power control parameters during handover |
JP2011501611A (en) * | 2007-10-25 | 2011-01-06 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Reduction of handover interruption in WiMax |
US8929909B2 (en) | 2008-01-04 | 2015-01-06 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association clearing support method and system |
US9344919B2 (en) | 2008-03-04 | 2016-05-17 | Interdigital Patent Holdings, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention-based preambles during handover |
US10021601B2 (en) | 2008-03-04 | 2018-07-10 | Interdigital Patent Holdings, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention based preambles during handover |
US10368270B2 (en) | 2008-03-04 | 2019-07-30 | Interdigital Patent Holdings, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention-based preambles during handover |
US11134417B2 (en) | 2008-03-04 | 2021-09-28 | Interdigital Patent Holdings, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention-based preambles |
US11751104B2 (en) | 2008-03-04 | 2023-09-05 | InterDigital Patent Holdngs, Inc. | Method and apparatus for accessing a random access channel by selectively using dedicated or contention-based preambles |
US9398511B2 (en) | 2008-03-20 | 2016-07-19 | Interdigital Patent Holdings, Inc. | Timing and cell specific system information handling for handover in evolved UTRA |
US10609609B2 (en) | 2008-03-20 | 2020-03-31 | Interdigital Patent Holdings, Inc. | Timing and cell specific system information handling for handover in evolved UTRA |
US8989143B2 (en) | 2008-06-30 | 2015-03-24 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing a handover in an evolved universal terrestrial radio access network |
US9854525B2 (en) | 2008-06-30 | 2017-12-26 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing a handover in an evolved universal terrestrial radio access network |
US9497671B2 (en) | 2008-06-30 | 2016-11-15 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing a handover in an evolved universal terrestrial radio access network |
EP2928236A1 (en) * | 2008-08-11 | 2015-10-07 | Alcatel Lucent | Mobility robustness enhancement in a wireless communication network |
WO2010017961A1 (en) | 2008-08-11 | 2010-02-18 | Alcatel Lucent | Handover method and apparatus in a wireless communications network |
US9668177B2 (en) | 2008-08-11 | 2017-05-30 | Alcaltel Lucent | Handover method and apparatus in a wireless communications network |
US20100157945A1 (en) * | 2008-12-24 | 2010-06-24 | Samsung Electronics Co., Ltd. | Apparatus and method for changing serving cell in a high speed wireless communication system |
US9357462B2 (en) * | 2008-12-24 | 2016-05-31 | Samsung Electronics Co., Ltd. | Apparatus and method for changing serving cell in a high speed wireless communication system |
US8724589B2 (en) | 2009-06-16 | 2014-05-13 | Fujitsu Limited | Wireless communication system |
WO2011017944A1 (en) * | 2009-08-11 | 2011-02-17 | 中兴通讯股份有限公司 | Method and system for handling handoff failures to closed subscriber group cell |
US8594629B2 (en) | 2009-08-11 | 2013-11-26 | Zte Corporation | Method and system for processing failure of handover to closed subscriber group cell |
US8615241B2 (en) | 2010-04-09 | 2013-12-24 | Qualcomm Incorporated | Methods and apparatus for facilitating robust forward handover in long term evolution (LTE) communication systems |
US9131410B2 (en) | 2010-04-09 | 2015-09-08 | Qualcomm Incorporated | Methods and apparatus for facilitating robust forward handover in long term evolution (LTE) communication systems |
US9578552B2 (en) | 2011-05-26 | 2017-02-21 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association provisioning support method and system |
US8923864B2 (en) | 2011-05-26 | 2014-12-30 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association provisioning support method and system |
US9820192B2 (en) | 2011-05-31 | 2017-11-14 | Sigram Schindler Beteilgungsgesellschaft mbH | Handover proactive association clearing support method and system |
CN104969617A (en) * | 2012-11-27 | 2015-10-07 | 西格拉姆申德勒有限公司 | Handover proactive association provisioning support method and system |
CN104969617B (en) * | 2012-11-27 | 2019-12-03 | 西格拉姆申德勒有限公司 | Method and system is supported in association preparation in advance for switching |
CN104956727B (en) * | 2012-11-27 | 2019-12-03 | 西格拉姆申德勒有限公司 | Support method and system is removed in association in advance for switching |
WO2014082658A1 (en) * | 2012-11-27 | 2014-06-05 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association provisioning support method and system |
CN104956727A (en) * | 2012-11-27 | 2015-09-30 | 西格拉姆申德勒有限公司 | Handover proactive association clearing support method and system |
WO2014082659A1 (en) * | 2012-11-27 | 2014-06-05 | Sigram Schindler Beteiligungsgesellschaft Mbh | Handover proactive association clearing support method and system |
EP3272053B1 (en) * | 2015-03-14 | 2020-09-30 | Qualcomm Incorporated | Reciprocal channel sounding reference signal allocation and configuration |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2568291C (en) | Handover execution and communication resumption in wireless access system | |
US11778537B2 (en) | Apparatus and method for controlling a terminal accessing a base station in broadband wireless communication system | |
US20070238464A1 (en) | Apparatus and method for performing handover in a communication system | |
WO2005120179A2 (en) | Scanning neighboring base stations in wireless access system | |
JP2008514108A (en) | Mobile station base station scan method | |
KR101818770B1 (en) | Method for fast handover of mobile terminal over communication system and system therefor | |
US8452288B2 (en) | Method for handover with consideration of the neighbor base stations' circumstances | |
KR101521303B1 (en) | Method and apparatus for switching frequency assignment in wireless communicaton system | |
EP2163008B1 (en) | Apparatus and method for managing connection identification in a communication system | |
KR100913100B1 (en) | Method for Handover and Resuem Communication in Failing Handover applying to Broadband Wireless Access System | |
MXPA06014058A (en) | Handover execution and communication resumption in wireless access system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005251648 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2568291 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2006/014058 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 7344/DELNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 179882 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007527020 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580018896.5 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005750817 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2005251648 Country of ref document: AU Date of ref document: 20050610 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2005251648 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 2005750817 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0511375 Country of ref document: BR |