WO2004064342A1 - Mobility method for ue in rrc connected mode - Google Patents

Mobility method for ue in rrc connected mode Download PDF

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Publication number
WO2004064342A1
WO2004064342A1 PCT/KR2004/000047 KR2004000047W WO2004064342A1 WO 2004064342 A1 WO2004064342 A1 WO 2004064342A1 KR 2004000047 W KR2004000047 W KR 2004000047W WO 2004064342 A1 WO2004064342 A1 WO 2004064342A1
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WO
WIPO (PCT)
Prior art keywords
mbms
message
cell
rnc
service
Prior art date
Application number
PCT/KR2004/000047
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English (en)
French (fr)
Inventor
Sung-Ho Choi
Kook-Heui Lee
Detao Li
Chunying Sun
Shanpeng Xiao
Lixiang Xu
Original Assignee
Samsung Electronics Co., Ltd.
Beijing Samsung Telecom R & D Center
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 Samsung Electronics Co., Ltd., Beijing Samsung Telecom R & D Center filed Critical Samsung Electronics Co., Ltd.
Publication of WO2004064342A1 publication Critical patent/WO2004064342A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the invention relates to a Wideband Code-Division Multiple Access (simplified as WCDMA) mobile communication system, especially to a mobility method for UE in RRC connected mode.
  • WCDMA Wideband Code-Division Multiple Access
  • Multimedia Broadcast and Multicast Service (simplified as MBMS) is a new service under standardization by 3 rd Generation Partnership Project (simplified as
  • MBMS service is a unidirectional point-to-multipoint (p-t-m) service, whose most remarkable feature is that it can make use of radio resources and network resources efficiently.
  • Figure 1 describes a structure of a MBMS system.
  • the MBMS network structure based on the core network of General Packet Radio Service (simplified as GPRS), has been added with new network units.
  • GPRS General Packet Radio Service
  • Broadcast and Multicast Service Center (simplified as BM-SC) 101 is a service control center of the MBMS system.
  • Gateway GPRS Supporting Node 102 (simplified as GGSN) and Service GPRS Supporting Node 103 (simplified as SGSN) compose a transmission network for MBMS service and provide a route for data transfer.
  • UMTS Terrestrial Radio Access Network 104 (simplified as UTRAN) provides radio resources for the MBMS service over the air-interface.
  • User Equipment 105 (hereinafter simplified as UE) is a terminal device for data receiving.
  • Home Location Register 106 (hereinafter simplified as HLR) stores the data related to user and can provide services such as user authentication.
  • Uul07 is a radio interface
  • Iul08 denotes an interface between an access network and a core network.
  • IF infrastructure field
  • Radio resources used by MBMS service are not dedicated for one user, but for all users using the service.
  • a UE in the states of CELL FACH and CELLJPCH reselects the cell, it sends a message of "Cell Update” to a new cell after it moves from one cell to another.
  • the UTRAN requests the UE in the state of CELL DCH to perform such operations as adding of radio connections, deleting of radio connections and both of them on an active set of a connection according to a survey report of the UE, it will send a message of "Active Set Update " to the UE.
  • An object of the invention is to provide a mobility method for a UE receiving
  • Figure 1 is a logic figure of a network device for offering MBMS service
  • Figure 2 shows a signaling flow for UE receiving a MBMS service in the states of CELL_FACH and CELLJPCH when it moves in the same SGSN;
  • Figure 4 shows a signaling flow for UE receiving a MBMS service and other non-MBMS service simultaneously in the state of CELL_DCH when it moves between different RNCs
  • Figure 5 shows a signaling flow for UE receiving a MBMS service only in the state of CELLJDCH when it moves between different RNCs.
  • RNC Service RNC
  • SRNC Service RNC
  • PTP Point-to-Point
  • PTM Point-to-Multipoint
  • the message contains such information as MBMS Service ID, MBMS RB Info and Service Area Info (e.g., a tracking area or a non-tracking area).
  • the Service Area Info is optional.
  • a Drifting RNC hereinafter simplified as DRNC
  • DRNC Drifting RNC
  • the message contains such information as MBMS Service ID, UE Identity, Cell ID, MBMS RB Info and Service Area Info (e.g., a tracking area or a non-tracking area);
  • the RNC of the target cell sends a message of "Cell Update Affirm" to the UE.
  • a mobility method for a UE receiving a MBMS service in the state of CELL DCH when it moves between two different cells within the same RNC comprising: a) A UE receiving MBMS service in the state of CELL_DCH sends a message of " Survey Report" to a RNC (Rel99). b) A RNC decides whether to update an active set (both a source cell and a target cell have radio links (hereinafter simplified as RL)) or to perform a cell-changing procedure (the target cell is the one with PTM mode, and no other non-MBMS service for the UE, or no real active set updating procedure but changing the MBMS service).
  • RL radio links
  • the RNC also can switch the cell offering MBMS service each time it updates the active set only.
  • the target cell is a tracking area and its channel switches from PTP (Point-to-Point) to PTM (Point-to-Multipoint) due to addition of the UE, the RNC sends a message of "MBMS Channel Reconfigure" to all UEs within the cell.
  • the message contains such information elements as MBMS Service ID, MBMS RB Info and Service Area Info (e.g., the tracking area or the non-tracking area).
  • the UE If the UE receives non-MBMS service and the target cell is a non-tracking area or a tracking area under PTM mode, then before the RNC establishes the RL for the non-MBMS service, it can send the message of "RB Reconfigure” or " Physical Channel Reconfigure” to notify the UE that whether the new cell is a tracking area or a non-tracking area and the RB parameters. Therefore, loss of data can be reduced.
  • RB Reconfigure or "Physical Channel Reconfigure" is added with such information elements as MBMS Service ID, MBMS RB Parameters, Service Area Info. All these information elements are optional.
  • RB Configuration Complete or "Physical Channel Configuration Complete” to the RNC according to the received message.
  • the RL and RB are established for the target cell to complete the synchronization on the user plane.
  • the RNC sends a message of "Active Set Update" to the UE.
  • the message is added with such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info. All these information elements are optional.
  • a mobility method for a UE receiving a MBMS service between different RNCs as well as a non-MBMS service in the state of CELLJDCH comprising: a) The UE receiving the MBMS service in the state of CELLJDCH sends a message of " Survey Report" to a RNC (Rel99).
  • a SRNC decides to execute whether an Active Set Update process or a Cell Update process.
  • the conditions for MBMS cell selection and execution are the same as in (2).
  • the SRNC sends a message of "MBMS Connection Request" to the RNC of a target cell.
  • the message of "MBMS Connection Request” contains such information as MBMS Service ID, UE Identity and Cell ID.
  • the target cell is a tracking area and its channel switches from PTP (Point-to-Point) to PTM (Point-to-Multipoint) due to addition of the UE, the RNC sends a message of " MBMS Channel Reconfigure " to all UEs within the cell.
  • the target cell is a non-tracking area or a tracking area in PTM mode
  • the RNC can send a message of "RB Reconfigure " or " Physical Channel Reconfigure " to notify the UE that whether the new cell is a tracking area or a non-tracking area and the RB parameters. Therefore, data losses can be reduced.
  • the message of " RB Reconfigure " or " Physical Channel Reconfigure” contains such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info.
  • RB Configuration Complete or "Physical Channel Configuration Complete” to the RNC according to the received message.
  • the RL and RB establishment processes on Iur (the interface between SRNC and DRNC) and Iub (the interface between RNC and BS subsystem) to accomplish uplink/downlink synchronization on the user plane are performed. If only change the cell receiving the MBMS service within active set and the cell is in PTM mode, the step can be skipped over.
  • the SRNC sends a message of "Active Set Update" to the UE. The message contains such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info. If only change a cell receiving the MBMS service within active set and the cell is in PTM mode, the step can be skipped over.
  • the UE Once the UE completes the relevant configurations, it sends a message of "Active Set Update Complete" to the RNC. h) If it is needed to delete the RL of the source cell according to the survey report of the UE, then delete the RL of the source cell.
  • a mobility method for dealing with a UE receiving a MBMS service in the states of CELL FACH and CELLJPCH comprising: a) The UE receiving the MBMS service in the state of CELLJDCH sends a message of " Survey Report" to a RNC (Rel99).
  • a SRNC decides to execute whether an Active Set Update process or a Cell Update process.
  • the SRNC sends a message of "MBMS Connection Request" to the RNC of the target cell.
  • the message of "MBMS Connection Request” contains such information as MBMS Service ID, UE Identity and Cell ID.
  • the RNC sends a message of " MBMS Channel Reconfigure " to all UEs within the cell.
  • the RNC sends a message of "MBMS Connection Response" containing such information as MBMS Service ID, UE Identity, Cell ID, Service Area Info and MBMS RB Info to the SRNC.
  • the MBMS RB Info is optional. If the target cell is a tracking area in PTP mode, RB information won't be included.
  • the RNC sends a message of " RB Reconfigure” or "Physical Channel
  • the UE Once the UE completes the relevant configurations, it sends a message of "Active Set Update Complete" to the RNC. h) If it needs to delete the RL of the source cell according to the survey report of the UE as well as the RB information of the target and source cell, then delete the RL of the source cell.
  • a UE receiving the MBMS service in the states of CELLJFACH and CELLJPCH sends a message of "Cell Update” to a new cell. And the information element of MBMS Service ID has been added in the message.
  • a SRNC receives a message of "Cell Update” from the UE applying for MBMS service, it sends a message of "MBMS Connection Request" to a RNC of the target cell.
  • the message of "MBMS Connection Request” contains such information as MBMS Service ID, UE Identity and Cell ID.
  • a DRNC sends a message of "MBMS Connection Response" containing such information as MBMS Service ID, UE Identity, Cell ID, MBMS RB Info and Service Area Info (e.g., a tracking area or a non-tracking area) to the SRNC.
  • MBMS Connection Response containing such information as MBMS Service ID, UE Identity, Cell ID, MBMS RB Info and Service Area Info (e.g., a tracking area or a non-tracking area) to the SRNC.
  • a source cell where the UE locates is a tracking area and the target cell is a non-tracking area, and UE does not receive any other non-MBMS service, then the corresponding RRC connection is released. 207 Now, the UE can receive the MBMS data from the new cell. If the UE moves between two different cells within the same RNC, step 202 and 204 can be skipped over.
  • a UE receiving the MBMS service in the state of CELLJDCH sends a message of "Survey Report" to a RNC (Rel99).
  • RNC decides to execute whether an Active Set Update process (both a source cell and a target cell have a RL) or a Cell Update process (the target cell is in PTM mode and the UE isn't receiving other non-MBMS service, or only the cell within the active set is updated to receive MBMS service).
  • RNC can select the cell for providing the MBMS service.
  • the RNC sends a message of "RB Reconfigure” or "Physical Channel Reconfigure " to notify the UE that whether the new cell is a tracking area or a non-tracking area, the RB parameters and to delete the RL of the source cell.
  • the UE If the UE receives non-MBMS service and the target cell is a non-tracking area or a tracking area in PTM mode, then before the RNC establishes the RL for the non-MBMS service, it can send the message of "RB Reconfigure” or "Physical Channel Reconfigure " to notify the UE that whether the new cell is a tracking area or a non-tracking area and the RB parameters. Therefore, loss of data can be reduced.
  • the RNC sends a message of " Active Set Update" to the UE.
  • the message is added with such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info.
  • a UE receiving the MBMS service in the state of CELLJDCH sends a message of " Survey Report” to a RNC (Rel99).
  • the SRNC sends a message of "MBMS Connection Request" to the RNC of the target cell.
  • the message of "MBMS Connection Request” contains such information as MBMS Service ID, UE Identity and Cell ID.
  • the RNC sends a message of "MBMS Channel Reconfigure” to all UEs within the cell.
  • a DRNC sends a message of "MBMS Connection Response" containing such information as MBMS Service ID, UE Identity, Cell ID, Service Area Info and MBMS RB Info to the SRNC.
  • the MBMS RB Info is optional and if the target cell is a tracking area in PTP mode, RB information won't be included.
  • the target cell is a non-tracking area or a tracking area in PTM mode
  • the RNC can send a message of "RB Reconfigure” or "Physical Channel Reconfigure” to notify the UE that whether the new cell is a tracking area or a non-tracking area and the RB parameters. Therefore, loss of data can be reduced.
  • step 406 If step 406 exists, once the UE completes the relevant configurations, it sends a message of "RB Configuration Complete” or "Physical Channel Configuration Complete” to the RNC according to the received message. 408 The RL and the RB establishment processes on Iur and Iub interfaces are performed to accomplish uplink/downlink synchronization on the user plane. If only change a cell within the active set for receiving MBMS service and the cell is in PTM mode, the step can be skipped over. 409 The SRNC sends a message of "Active Set Update" to the UE. The message contains such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info. If only change a cell within active set for receiving MBMS service and the cell is in PTM mode, the step can be skipped over.
  • a UE receiving the MBMS service in the state of CELLJDCH sends a message of "Survey Report" to a RNC (Rel99).
  • 502 A SRNC decides to execute whether an Active Set Update process or a Cell Update process.
  • the SRNC sends a message of "MBMS Connection Request" to the RNC of a target cell.
  • the message of "MBMS Connection Request” contains such information as MBMS Service ID, UE Identity and Cell ID. 504 If the target cell is a tracking area and its channel switches from PTP (Point-to-Point) to PTM (Point-to-Multipoint) due to addition of the UE, the RNC sends a message of "MBMS Channel Reconfigure" to all UEs within the cell.
  • step 506 If step 506 exists, once the UE completes the relevant configurations, it sends a message of "RB Configuration Complete” or "Physical Channel Configuration Complete” to the RNC according to the received message.
  • the RL and RB establishment processes to accomplish uplink/downlink synchronization on the user plane are performed.
  • the RNC sends a message of "Active Set Update" to the UE.
  • the message contains with such information elements as MBMS Service ID, MBMS RB Parameters and Service Area Info.
  • step 509 If step 509 exists, once the UE completes the relevant configurations, it sends a message of "Active Set Update Complete" to the RNC.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/KR2004/000047 2003-01-13 2004-01-13 Mobility method for ue in rrc connected mode WO2004064342A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA031016057A CN1518255A (zh) 2003-01-13 2003-01-13 解决处于rrc连接模式ue移动的方法
CN03101605.7 2003-01-13

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AU2012201889B2 (en) * 2007-06-22 2014-05-01 Nokia Technologies Oy An apparatus and method for use in location determination
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US8615258B2 (en) 2009-01-22 2013-12-24 Intel Mobile Communications GmbH Home base station communication with a mobile radio communication device using a home base station group member identifier
WO2012137078A3 (en) * 2011-04-04 2012-11-29 Alcatel Lucent Method and apparatus for transmitting and receiving mbms service-related messages
WO2012137078A2 (en) * 2011-04-04 2012-10-11 Alcatel Lucent Method and apparatus for transmitting and receiving mbms service-related messages
US20140160976A1 (en) * 2011-08-09 2014-06-12 Telefonaktiebolaget L M Ericsson (Publ) Exchange of Mobility Information in Cellular Radio Communications
US10924915B2 (en) * 2011-08-09 2021-02-16 Telefonaktiebolaget Lm Ericsson (Publ) Exchange of mobility information in cellular radio communications
WO2014169572A1 (zh) * 2013-08-19 2014-10-23 中兴通讯股份有限公司 接入方法和装置
EP4145867A4 (en) * 2020-04-27 2023-08-30 ZTE Corporation MODE CONFIGURATION METHOD AND APPARATUS, AND STORAGE DEVICE AND MEDIA
CN114745677A (zh) * 2021-01-08 2022-07-12 维沃移动通信有限公司 路径处理方法、装置、终端、网络设备和存储介质
CN114745677B (zh) * 2021-01-08 2023-05-16 维沃移动通信有限公司 路径处理方法、装置、终端、网络设备和存储介质

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