WO2012083824A1 - 系统间切换的方法及设备 - Google Patents

系统间切换的方法及设备 Download PDF

Info

Publication number
WO2012083824A1
WO2012083824A1 PCT/CN2011/084141 CN2011084141W WO2012083824A1 WO 2012083824 A1 WO2012083824 A1 WO 2012083824A1 CN 2011084141 W CN2011084141 W CN 2011084141W WO 2012083824 A1 WO2012083824 A1 WO 2012083824A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
user terminal
cell
information
handover request
Prior art date
Application number
PCT/CN2011/084141
Other languages
English (en)
French (fr)
Inventor
刘佳敏
梁靖
Original Assignee
大唐移动通信设备有限公司
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 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2012083824A1 publication Critical patent/WO2012083824A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0058Transmission of hand-off measurement information, e.g. measurement reports

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and device for switching between systems. Background technique
  • multi-cell technology is introduced for the FDD (Frequency Division Duplexing) mode for TDD (in the Universal Mobile Telecommunications System);
  • the Time Division Duplexing mode introduces multi-carrier technology.
  • HSDPA High Speed Downlink Packet Access
  • HSUPA High Speed Uplink Packet Access
  • the multi-cell technology of the FDD mode includes a downlink dual cell, a 4-cell, and an uplink dual cell. Each cell is a backward compatible cell that can work independently. When the terminal is a monthly service, there is only one primary cell. Others are secondary cells.
  • the multi-carrier in the TDD mode includes the downlink 3 carrier, the 6-carrier, and the uplink 3 carrier.
  • the carriers that can work simultaneously belong to the same TDD cell, and only the primary carrier is a backward compatible cell that can work independently, and the other
  • the secondary carrier can be used as a resource only under multi-carrier technology.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced, Evolved LTE
  • CA Carrier Aggregation, Carrier aggregation technology, which aggregates multiple consecutive or discontinuous carriers under the same eNB (base station) and simultaneously serves UE (User Equipment, Terminal Equipment) to provide the required rate.
  • CC Component Carrier
  • Each cell can be a member carrier, and cells (member carriers) under different eNBs cannot be aggregated. In order to ensure that the LTE UE can work under each aggregated carrier, each carrier does not exceed 20 MHz at the maximum.
  • multi-mode terminals have been widely used, and multi-mode terminals can work in both UMTS systems and LTE systems.
  • multi-carrier switching cannot be performed.
  • a multimode terminal switches from another system supporting high-speed data transmission to a UMTS system or an LTE system, the data transmission rate decreases due to other systems supporting high-speed data transmission that do not support multi-carrier switching to the two systems. , affecting the user experience.
  • the embodiments of the invention provide a method and device for switching between systems, which implement multi-carrier switching between different systems in a multi-mode terminal.
  • the embodiment of the invention provides a method for switching between systems, including:
  • the target node receives the handover request message
  • the target node sends a handover request acknowledgement message carrying a multi-carrier or multi-cell configuration of the user terminal according to the handover request message.
  • the embodiment of the invention provides a method for switching between systems, including:
  • the source node sends a handover request message of the user terminal to the target node;
  • the source node generates a handover command according to the handover request acknowledgement message and transmits the handover command to the user terminal.
  • the embodiment of the invention provides a method for switching between systems, including:
  • the user terminal sends a measurement report message to the source node;
  • the user terminal performs multi-carrier or multi-cell handover according to the received handover command, where the handover command carries a multi-carrier or multi-cell configuration of the user terminal.
  • the embodiment of the invention provides a network node, including:
  • a receiving unit configured to receive a handover request message
  • a sending unit configured to send, according to the handover request message, a handover request acknowledgement message carrying a multi-carrier or multi-cell configuration of the user terminal.
  • the embodiment of the invention provides a network node, including:
  • a sending unit configured to send a handover request message of the user terminal to the target node, where the receiving unit is configured to receive a handover request acknowledgement message that is sent by the target node and that carries the multi-carrier or multi-cell configuration of the user terminal;
  • a switching unit configured to generate a handover command according to the handover request acknowledgement message and send the handover command to the user terminal.
  • An embodiment of the present invention provides a user terminal, including:
  • a sending unit configured to send a measurement report message to the source node
  • a switching unit configured to perform multi-carrier or multi-cell switching according to the received handover command, where the handover command carries a multi-carrier or multi-cell configuration of the user terminal.
  • the embodiment of the invention has at least the following advantages:
  • the target node when the user terminal performs the different system handover, the target node sends a handover request acknowledgement message carrying the multi-carrier or multi-cell configuration of the user terminal according to the handover request message of the user terminal, thereby realizing the multi-mode terminal in different systems. Multi-carrier switching between. DRAWINGS
  • FIG. 1 is a schematic diagram of a carrier of an LTE system in the prior art
  • FIG. 2A is a schematic flow chart of a method for switching between systems according to Embodiment 1 of the present invention
  • FIG. 2B is a schematic flow chart of a method for switching between systems according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic flowchart of a method for switching between systems according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic flowchart of a method for switching between systems according to Embodiment 4 of the present invention
  • FIG. 5 is a schematic structural diagram of a network node according to Embodiment 5 of the present invention
  • FIG. 7 is a schematic structural diagram of a network node according to Embodiment 6 of the present invention
  • the core idea of the embodiment of the present invention is: when switching between different systems, the target node of the handover (for example, the RNC in the UMTS Terrestrial Radio Access Network) can be switched according to the capabilities and service information of the UE.
  • the request acknowledgement message carries a multi-carrier (TDD) or multi-cell (FDD) configuration, which triggers the UE to perform multi-carrier handover.
  • TDD multi-carrier
  • FDD multi-cell
  • the handover request message may carry all or part of the following contents:
  • Capability information of the UE for example, whether the UE supports the TDD/FDD mode under the target system, whether to support multi-carrier, supported frequency band information, etc.;
  • the source node is the multi-carrier/multi-cell information in the target node selected by the UE, that is, in addition to carrying the primary carrier or the primary cell information, the source node may carry information or measurement results of other carriers or other cells of the target node.
  • Embodiment 1 The method for switching between systems provided by the present invention is described in detail below through specific embodiments. Embodiment 1
  • Embodiment 1 of the present invention provides a method for switching between systems, as shown in FIG. 2A, Includes:
  • Step 201 The source node sends a handover request message of the user terminal to the target node.
  • the source node sends, to the target node, a handover request message carrying multi-carrier capability information of the user terminal, and/or multi-carrier or multi-cell information.
  • the method may further include: the source node sending a measurement configuration message to the user terminal, where the measurement configuration message carries the measurement of the multi-carrier of the target node.
  • the source node receives the measurement report message sent by the user terminal, and when the measurement result carried by the measurement report message satisfies a preset condition, the step of sending a handover request message of the user terminal to the target node is performed.
  • Step 202 The target node receives the handover request message.
  • Step 203 The target node sends, according to the handover request message, a handover request acknowledgement message carrying a multi-carrier or multi-cell configuration of the user terminal.
  • the handover request message received by the target node carries multi-carrier capability information, and/or multi-carrier or multi-cell measurement information, and/or candidate cell or frequency point list information of the user terminal.
  • the candidate cell or the frequency point list information refers to a recommendation list obtained by the source node according to the multi-carrier capability and measurement information of the user terminal according to the self-policy, and the target node is the user terminal in the cell or frequency range listed in the list.
  • Selecting a multi-carrier configuration wherein the lists may be arranged in a predetermined order, for example, may be arranged from high to low according to multi-carrier measurement results to provide more information to the target node, and the target node may allocate multiple carriers or more to the user terminal according to the sequence. Cell configuration.
  • the sending, by the target node, the handover request acknowledgement message that carries the multi-carrier or multi-cell configuration of the user terminal, according to the handover request message may include: the target node acquiring, whether the user terminal carried in the handover request message is Need multi-carrier or small The indication information of the area configuration, when the indication information is required, assigning a multi-carrier or multi-cell configuration to the user terminal according to a preset policy, and carrying the multi-carrier or multi-cell configuration of the user terminal by using the handover request acknowledgement message .
  • the preset policy can be flexibly set according to actual needs, for example, according to the service rate requirement of the user terminal, the resource occupancy of the own node, etc., to allocate a suitable multi-carrier/multi-cell configuration for the user terminal.
  • the target node acquires the indication information, and when the indication information is required, the multi-carrier or multi-cell configuration is configured for the user terminal, where the target node acquires the user terminal carried in the handover request message.
  • the multi-carrier or multi-cell capability information of the target system when the user terminal supports the multi-carrier or multi-cell capability in the target system, the multi-carrier or multi-cell configuration is allocated to the user terminal; or the target node acquires a multi-carrier or multi-cell candidate list of the target node carried in the handover request message, where the user terminal is allocated a multi-carrier or multi-cell configuration in the multi-carrier or multi-cell candidate list; or The target node acquires multi-frequency point measurement information of the target node carried in the handover request message, and allocates a multi-carrier or multi-cell configuration to the user terminal according to the multi-frequency point measurement information.
  • Step 204 The source node receives a handover request acknowledgement message that is sent by the target node and carries a multi-carrier or multi-cell configuration of the user terminal.
  • Step 205 The source node sends a handover command to the user terminal, where the handover command carries a multi-carrier or multi-cell configuration of the user terminal.
  • Step 206 The user terminal performs multi-carrier or multi-cell handover according to the received handover command.
  • the user terminal may first transmit multi-carrier or multi-cell capability information to the source node, that is, whether it supports hetero-system multi-carrier or multi-cell communication.
  • the source node sends measurement configuration information to the user terminal according to the "multi-system multi-carrier or multi-cell capability information" on the user terminal, and the user terminal performs multi-carrier multi-carrier or multi-cell measurement according to the measurement configuration information, and reports the measurement result to the source.
  • Embodiment 2 Embodiment 2
  • Embodiment 2 of the present invention provides a method for inter-system handover, where the UE is E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the evolved universal terrestrial radio access network)
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network, the evolved universal terrestrial radio access network
  • the system is switched to the UTRAN system as an example.
  • the source eNB evolved NodeB, evolved base station
  • RNC target RNC
  • the radio network controller sends a handover request message, and after receiving the handover request, the target RNC sends a handover request acknowledgement message to the source eNB, where the handover request acknowledgement message carries a multi-carrier or multi-cell configuration.
  • the eNB is used to represent the base station and corresponds to the user UE.
  • the source eNB sends a handover command to the UE according to the handover request acknowledgement message, and after completing the access to the target RNC, the UE sends a handover complete message to the target RNC, and the entire handover process is completed.
  • the handover UE can work directly in the multi-carrier (TDD) or multi-cell (FDD) mode in the target RNC to provide a higher data transmission rate for the UE.
  • TDD multi-carrier
  • FDD multi-cell
  • the method includes the following steps:
  • Step 201 The source eNB sends a measurement configuration message to the UE.
  • the source eNB sends the measurement configuration to the UE according to the capability of the UE, the data rate, and the neighboring system version of the neighboring cell.
  • the UE supports dual mode, supports multi-carrier mode, and has a high data transmission rate.
  • the neighboring cell neighbor system also supports multiple carriers.
  • the measurement configuration of the source eNB needs to consider the measurement information of other carriers of the target node.
  • Step 202 The source eNB receives the measurement report message of the UE. If the handover condition of the E-UTRAN to the UTRAN is met, and the UE supports the multi-carrier or multi-cell UTRAN mode, the UE carries the multi-carrier capability information of the UE, and / or handover request message for multi-carrier or multi-cell information.
  • the handover request message sent by the source eNB may carry one or more of the following information:
  • the source eNB may carry the measurement result of the other carrier (the carrier other than the primary carrier) of the target node, in addition to carrying the target cell identifier and the capability information of the UE, in the handover request message sent to the target RNC, where the UE
  • the capability information may include whether the UE supports TDD or FDD, whether to support multi-carrier or multi-cell, and the frequency supported by the UE. Point information, etc.
  • the source eNB carries the necessary UE multi-carrier capability information, such as whether to support multi-carrier or multi-cell, supported frequency point information, etc., in the handover request message sent to the target RNC;
  • the source eNB selects other carriers of the target node whose measurement result meets the condition in the frequency band supported by the UE, and includes label information or frequency point information of other carriers in the handover request message addressed to the target RNC; for example, Carrying the candidate cell or the frequency point list information in the handover request message and sending the information to the target RNC;
  • the source eNB includes, in the frequency band supported by the UE, label information or frequency point information of other carriers of the target node in which the measurement result is in descending order, in a handover request message addressed to the target RNC;
  • the specific implementation manners may be other arrangements, which are not limited in the embodiment of the present invention.
  • the source eNB in the frequency band supported by the UE, the measurement result of the other carriers passing the target node is included in the handover request message addressed to the target RNC.
  • the conditions for the measurement results in the above options can be set according to actual needs, for example, the signal strength threshold is set, that is, the measurement result whose signal strength is above the threshold is a satisfactory condition.
  • the source eNB sends a handover request message to the target RNC through the core network node.
  • Step 203 The target RNC receives the handover request message sent by the source eNB, and allocates a multi-carrier multi-cell configuration for the handover UE.
  • the target RNC may, but is not limited to, allocate a multi-carrier multi-cell configuration for the handover UE according to the following manner:
  • the UE is allocated a suitable multi-carrier multi-cell configuration
  • Step 204 The target RNC sends the multi-carrier/multi-cell configuration of the UE to the source eNB in the handover request acknowledgement message.
  • Step 205 The source eNB receives the handover request acknowledgement message fed back by the target RNC, and if the target RNC successfully accepts the handover request message, sends a handover command to the UE according to the handover request acknowledgement message, where the handover command carries the configuration of the target multi-carrier/multi-cell.
  • the UE receives a handover command (Handover to UTRAN Command) sent by the source eNB, completes initial access and configuration to the UTRAN according to the access UTRAN indication and the multi-carrier/multi-cell configuration of the handover command, and sends the handover to the target RNC.
  • the handover complete command directly communicates with the target RNC on the multi-carrier/multi-cell.
  • the source eNB deletes information such as resources and context of the UE.
  • the target RNC accepts the UE's handover complete command and communicates with the UE directly in the multi-carrier/multi-cell.
  • the UE Before the handover, the UE needs to report its own capability information to the source eNB, for example, whether the UE supports UTRAN TDD or FDD, whether to support multi-carrier, supported frequency information, whether to support PS multi-carrier handover to the UTRAN, and the like.
  • Ciphering algorithm OP Ciphering algorithm
  • Uplink secondary cell OP Uplink secondary FDD only (only REL-9 info FDD (upstream second cell) Information Need Multi Type and reference Semantics Version
  • Radio link (each wireless link radio link (each without
  • Configuration mode (default TDD) (listing (FDD, whether the configuration mode) TDD ) ) FDD or TDD
  • Radio link (each wireless link radio link Post
  • Downlink secondary FDD Downlink secondary FDD
  • FDD downward second cell info FDD (lower only EL-8 cell information FDD) line second cell information FDD
  • Downlink secondary FDD R cell info FDD (downstream second cell info FDD (downlink only EL- 10 cell information FDD) second cell information FDD)
  • Multi-carrier OP Multi -carrier TDD R HS-PDSCH Info for HCR HS-PDSCH Info for 3.84 Mcps or EL- 10
  • Multi-frequency Info (Multi-frequency Multi-frequency This IE is R frequency information) Info (multi-frequency information) used for 1.28 EL-7
  • Table 1 exemplifies the method of adding multi-cell configuration of FDD and multi-carrier configuration of TDD in the Handover to UTRAN Command message, and adding three options in the Uplink radio resources information element: Uplink secondary cell info FDD, Multi-carrier E-DCH Info for LCR TDD and Multi-carrier E-DCH Info for HCR TDD, used to describe multi-cell configuration of FDD and multi-carrier configuration of TDD.
  • the Downlink radio resources option Downlink secondary cell info FDD, Additional downlink secondary cell info list FDD, Multi-carrier HS-PDSCH Info for LCR TDD and Multi-carrier HS-PDSCH Info for HCR TDD
  • the option Downlink secondary cell info FDD is set in the option Additional downlink secondary cell info list FDD.
  • the manner of adding the multi-cell configuration of the FDD and the multi-carrier configuration of the TDD in the Handover to UTRAN Command message provided in the embodiment of the present invention includes, but is not limited to, the manner shown in Table 1.
  • the user terminal when the user terminal works in the UTRAN, the user terminal reports the carrier aggregation capability in the E-UTRAN to the source node; when the user terminal works in the E-UTRAN, the user The terminal reports the multi-carrier or multi-cell capability in the UTRAN to the source node.
  • the user terminal when the user terminal works in the 3GPP system, the user terminal reports the capability of supporting the multi-carrier in the non-3GPP system to the source node; when the user terminal works in the non-3GPP system, The user terminal reports to the source node the ability to support multiple carriers or multiple cells in the 3GPP system.
  • Embodiment 3 is capable of operating in a 3GPP system or a non-3GPP system, when the user terminal works in the 3GPP system, the user terminal reports the capability of supporting the multi-carrier in the non-3GPP system to the source node; when the user terminal works in the non-3GPP system, The user terminal reports to the source node the ability to support multiple carriers or multiple cells in the 3GPP system.
  • the third embodiment of the present invention provides a method for switching between systems, and the UE is switched from another system to the UTRAN system as an example.
  • a dual-mode UE initially operates in a non-UTRAN system (e.g., GERAN), and with mobility, satisfies the conditions for switching from a non-UTRAN system to a UTRAN system.
  • a non-UTRAN system e.g., GERAN
  • the method includes the following steps:
  • Step 301 The source node sends a handover request message to the target RNC, where the handover request message carries the multi-carrier capability information of the UE in the UTRAN.
  • the multi-carrier capability information of the UE in the UTRAN includes: whether to support multi-carrier/multi-cell, supported frequency points, and the like.
  • Step 302 The target RNC receives the handover request message of the UE, and configures the appropriate multi-carrier/multi-cell information for the UE according to the multi-carrier capability information of the UE in the UTRAN, and carries The handover request acknowledgement message is sent to the source node.
  • Step 303 The source node generates and sends a handover command (Handover to UTRAN Command) according to the handover request acknowledgement message.
  • Step 304 The UE completes access to the target UTRAN node according to the multi-carrier/multi-cell configuration, and directly starts multi-carrier/multi-cell transmission.
  • a fourth embodiment of the present invention provides a method for inter-system handover, which is described by taking a handover of a UE from a UTRAN/E-UTRAN system to a non-3GPP system.
  • the method includes the following steps:
  • Step 401 If the UE supports the target system multi-carrier or multi-cell mode, the source node sends a handover request message carrying the multi-carrier capability information of the UE in the target system to the target node.
  • the handover request message carries multi-carrier capability information of the UE in the target system, for example, whether to support multiple carriers/multi-cells, supported frequency points, and the like.
  • Step 402 The target system node determines the rate requirement and capability of the UE according to the multi-carrier capability information carried in the handover request message, configures the corresponding multi-carrier/multi-cell information for the UE, and carries the configuration information in the handover request acknowledgement message.
  • the target system node performs WiMAX multi-carrier configuration for the UE.
  • Step 403 The source node sends a handover command to the UE according to the handover request acknowledgement message sent by the target system node, where the multi-carrier configuration information of the UE is carried.
  • Step 404 The UE completes access to the target system node according to the multi-carrier multi-cell configuration, and directly starts multi-carrier/multi-cell transmission.
  • the target node when the user terminal performs the different system handover, the target node sends a handover request acknowledgement message carrying the multi-carrier or multi-cell configuration of the user terminal according to the handover request message of the user terminal, thereby realizing the multi-mode terminal in different systems. Multi-carrier switching between.
  • Embodiment 5 Based on the technical concept of the same or similar to the foregoing method embodiment, the fifth embodiment of the present invention provides a network node, as shown in FIG. 5, including:
  • the receiving unit 10 is configured to receive a handover request message.
  • the sending unit 20 is configured to send, according to the handover request message, a handover request acknowledgement message carrying a multi-carrier or multi-cell configuration of the user terminal.
  • the handover request message carries multi-carrier capability information, and/or multi-carrier or multi-cell measurement information, and/or candidate cell or frequency point list information of the user terminal.
  • the sending unit 20 includes:
  • the allocation sub-unit 21 is configured to acquire, according to the preset policy, the user terminal, according to a preset policy, to obtain the indication information of whether the user terminal that is carried in the handover request message needs to be configured by the multi-carrier or the multi-cell. Carrier or multi-cell configuration;
  • the sending subunit 22 is configured to carry the multi-carrier or multi-cell configuration of the user terminal by using the handover request acknowledgement message.
  • the allocation sub-unit 21 is further configured to: acquire multi-carrier or multi-cell capability information of the user terminal in the target system that is carried in the handover request message; when the user terminal supports multiple carriers or multiples in the target system When the cell capacity is available, the user terminal is allocated a multi-carrier or multi-cell configuration according to a preset policy.
  • the allocation sub-unit 21 may be further configured to: obtain a multi-carrier or multi-cell candidate list of the target node carried in the handover request message, and allocate the multi-carrier or multi-cell candidate list to the user terminal Multi-carrier or multi-cell configuration.
  • the allocation sub-unit 21 is further configured to: obtain multi-frequency point measurement information of the target node that is carried in the handover request message, and allocate multiple carriers or multiple cells to the user terminal according to the multi-frequency point measurement information. Configuration. Embodiment 6
  • the sixth embodiment of the present invention provides a network node, as shown in FIG. 7, including:
  • the sending unit 30 is configured to send a handover request message of the user terminal to the target node
  • the receiving unit 40 is configured to receive, by the target node, a handover request acknowledgement message that carries the multi-carrier or multi-cell configuration of the user terminal
  • the switching unit 50 is configured to generate a handover command according to the handover request acknowledgement message and send the handover command to the user terminal.
  • the sending unit 30 is further configured to:
  • a handover request message carrying the multi-carrier capability information of the user terminal, and/or multi-carrier or multi-cell information, and/or candidate cell or frequency point list information is transmitted to the target node.
  • the configuration unit 60 is configured to send a measurement configuration message to the user terminal, where the measurement configuration message carries the measurement information of the multi-carrier of the target node;
  • the reporting unit 70 is configured to receive the measurement report message sent by the user terminal, and notify the sending unit to send the handover request message when the measurement result carried by the measurement report message satisfies a preset condition.
  • the seventh embodiment of the present invention provides a user terminal, as shown in FIG. 9, including:
  • the sending unit 91 is configured to send a measurement report message to the source node.
  • the switching unit 92 is configured to perform multi-carrier or multi-cell handover according to the received handover command, where the handover command carries a multi-carrier or multi-cell configuration of the user terminal.
  • the transmission unit 93 is configured to directly perform data transmission in the multi-carrier multi-cell mode after the handover is completed.
  • the capability sending unit 94 is configured to send, to the source node, different multi-carrier or multi-cell capability information of the user terminal;
  • the configuration receiving unit 95 is configured to receive measurement configuration information sent by the source node, and the measurement unit 96 is configured to perform inter-system multi-carrier or multi-cell measurement according to the measurement configuration information.
  • the target node when the user terminal performs the different system switching, the target node is used according to the The handover request message of the user terminal transmits a handover request acknowledgement message carrying the multi-carrier or multi-cell configuration of the user terminal, thereby implementing multi-carrier handover of the multi-mode terminal between different systems.
  • a form of software product is embodied, the computer software product being stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the present invention.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

Landscapes

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

Description

系统间切换的方法及设备 本申请要求于 2010年 12月 23 日提交中国专利局, 申请号为 201010620690.2, 发明名称为 "系统间切换的方法及设备" 的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信领域, 尤其涉及一种系统间切换的方法及设备。 背景技术
了提高用户峰值速率和小区数据吞吐率, 在 UMTS ( Universal Mobile Telecommunications System,通用移动通信系统)中,对于 FDD ( Frequency Division Duplexing, 频分双工 )模式, 引入了多小区技 术; 而对于 TDD ( Time Division Duplexing, 时分双工)模式, 引入 了多载波技术。 目前 HSDPA ( High Speed Downlink Packet Access, 高速下行分组接入 )和 HSUPA ( High Speed Uplink Packet Access , 高 速上行链路分组接入) 均支持多小区 /多载波技术。 FDD模式的多小 区技术包括下行双小区、 4小区以及上行双小区等, 每个小区都是可 以独立工作的后向兼容小区, 当同时为终端月良务时, 有且仅有一个主 小区, 其他均为辅小区。 而 TDD模式的多载波包括下行 3载波、 6 载波以及上行 3 载波等, 这些可以同时工作的载波都是属于同一个 TDD 小区的, 其中只有主载波是可以独立工作的后向兼容小区, 而 其他辅载波只有在多载波技术下, 才能被当作资源, 加以利用。
在 LTE ( Long Term Evolution, 长期演进 ) 系统中, 一个小区中 只有一个载波, 其最大带宽为 20MHz, 如图 1所示。 在 LTE-A ( LTE Advanced, 演进的 LTE ) 系统中, 系统的峰值速率比 LTE有巨大的 提高, 要求达到下行 lGbps, 上行 500Mbps。 如果只使用一个最大带 宽为 20MHz的载波是无法达到峰值速率要求的。 因此, LTE-A系统 需要扩展终端可以使用的带宽, 由此引入了 CA ( Carrier Aggregation, 载波聚合)技术, 即将同一个 eNB (基站)下的多个连续或不连续的 载波聚合在一起, 同时为 UE ( User Equipment, 终端设备)服务, 以 提供所需的速率。 这些聚合在一起的载波称为 CC ( Component Carrier, 成员载波)。 每个小区都可以是一个成员载波, 不同 eNB下 的小区(成员载波)不能聚合。 为了保证 LTE的 UE能在每一个聚合 的载波下工作, 每一个载波最大不超过 20MHz。
目前多模终端已经获得了广泛的应用,多模终端既可以在 UMTS 系统工作, 也可以在 LTE 系统工作。 但是, 现有技术中, 当多模终 端在 UMTS系统和 LTE系统之间进行切换时,无法进行多载波切换。 而且, 当多模终端从其他支持高速数据传输的系统中切换到 UMTS 系统或者 LTE 系统时, 由于其他支持高速数据传输的系统不支持向 这两个系统的多载波切换,导致数据传输速率的下降,影响用户体验。 发明内容
发明实施例提供了一种系统间切换的方法及设备,实现了多模终 端在不同系统之间的多载波切换。
本发明实施例提供了一种系统间切换的方法, 包括:
目标节点接收切换请求消息;
所述目标节点根据所述切换请求消息,发送携带用户终端的多载 波或多小区配置的切换请求确认消息。
本发明实施例提供了一种系统间切换的方法, 包括:
源节点向目标节点发送用户终端的切换请求消息;
所述源节点接收所述目标节点发送的携带所述用户终端的多载 波或多小区配置的切换请求确认消息;
所述源节点根据所述切换请求确认消息生成切换命令并向所述 用户终端发送。
本发明实施例提供了一种系统间切换的方法, 包括:
用户终端向源节点发送测量上报消息; 所述用户终端根据接收到的切换命令进行多载波或多小区切换, 所述切换命令中携带所述用户终端的多载波或多小区配置。
本发明实施例提供了一种网络节点, 包括:
接收单元, 用于接收切换请求消息;
发送单元, 用于根据所述切换请求消息, 发送携带用户终端的多 载波或多小区配置的切换请求确认消息。
本发明实施例提供了一种网络节点, 包括:
发送单元, 用于向目标节点发送用户终端的切换请求消息; 接收单元,用于接收所述目标节点发送的携带所述用户终端的多 载波或多小区配置的切换请求确认消息;
切换单元,用于根据所述切换请求确认消息生成切换命令并向所 述用户终端发送。
本发明实施例提供了一种用户终端, 包括:
发送单元, 用于向源节点发送测量上报消息;
切换单元, 用于根据接收到的切换命令进行多载波或多小区切 换, 所述切换命令中携带所述用户终端的多载波或多小区配置。
与现有技术相比, 本发明实施例至少具有以下优点:
本发明实施例中, 用户终端进行异系统切换时, 目标节点根据用 户终端的切换请求消息,发送携带用户终端的多载波或多小区配置的 切换请求确认消息, 实现了多模终端在不同系统之间的多载波切换。 附图说明
图 1为是现有技术中 LTE系统载波示意图;
图 2A 为本发明实施例一提供的系统间切换的方法的流程示意 图;
图 2B 为本发明实施例二提供的系统间切换的方法的流程示意 图;
图 3为本发明实施例三提供的系统间切换的方法的流程示意图; 图 4为本发明实施例四提供的系统间切换的方法的流程示意图; 图 5~6为本发明实施例五提供的网络节点的结构示意图; 图 7~8为本发明实施例六提供的网络节点的结构示意图; 图 9~10为本发明实施例七提供的网络节点的结构示意图。 具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细 描述:
下面将结合本发明的实施例中的附图,对本发明的实施例中的技 术方案进行清楚、 完整地描述, 显然, 下面所描述的实施例仅仅是本 发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其 他实施例, 都属于本发明的实施例保护的范围。
本发明实施例的核心思想是: 异系统间切换时, 切换的目标节点 (例如 UTRAN ( UMTS Terrestrial Radio Access Network, UMTS 陆 地无线接入网)中的 RNC )可以根据 UE的能力及业务信息在切换请 求确认消息中携带多载波(TDD )或多小区 (FDD ) 配置, 触发 UE 进行多载波切换。
为了能够使目标节点为切换 UE分配合适的资源, 本发明实施例 中, 切换 UE的源节点在向目标节点发送切换请求消息时, 在切换请 求消息中可以携带下述全部或部分内容:
UE的能力信息, 例如 UE是否支持目标系统下 TDD/FDD模式, 是否支持多载波, 支持的频段信息等;
源节点为 UE选出的目标节点中的多载波 /多小区信息,即除了携 带主载波或者主小区信息, 还可以携带该 UE对目标节点的其他载波 或者其他小区的信息或测量结果。
下面通过具体实施例详细介绍本发明提供的系统间切换的方法。 实施例一
本发明实施例一提供一种系统间切换的方法, 如图 2A所示, 包 括:
步骤 201 , 源节点向目标节点发送用户终端的切换请求消息。 优选的,所述源节点向目标节点发送携带所述用户终端的多载波 能力信息、 和 /或多载波或者多小区信息的切换请求消息。
所述源节点向目标节点发送用户终端的切换请求消息之前,还可 以包括: 所述源节点向所述用户终端发送测量配置消息, 所述测量配 置消息中携带所述目标节点的多载波的测量信息;所述源节点接收所 述用户终端发送的测量上报消息, 当所述测量上报消息携带的测量结 果满足预设条件时,执行向目标节点发送用户终端的切换请求消息的 步骤。
步骤 202, 目标节点接收切换请求消息。
步骤 203 , 所述目标节点根据所述切换请求消息, 发送携带所述 用户终端的多载波或多小区配置的切换请求确认消息。
具体的,所述目标节点接收的所述切换请求消息中携带所述用户 终端的多载波能力信息、 和 /或多载波或者多小区测量信息、 和 /或候 选小区或者频点列表信息。 其中, 候选小区或者频点列表信息指源节 点根据用户终端的多载波能力和测量等信息,依据自身策略得出的推 荐列表,供目标节点为用户终端在该列表所列小区或频点范围内选择 多载波配置, 其中列表可以按照既定的顺序排列, 例如可以按照多载 波测量结果从高到低排列, 以给目标节点提供更多信息, 目标节点可 以根据该顺序为用户终端分配多载波或多小区配置。
所述目标节点获取所述切换请求消息中携带的所述用户终端的 多载波能力信息、 和 /或多载波或者多小区测量信息、 和 /或候选小区 或者频点列表信息,根据获取到的信息为所述用户终端分配多载波或 多小区配置,并通过所述切换请求确认消息携带所述用户终端的多载 波或多小区配置。
所述目标节点根据所述切换请求消息,发送携带所述用户终端的 多载波或多小区配置的切换请求确认消息可以包括:所述目标节点获 取所述切换请求消息中携带的所述用户终端是否需要多载波或多小 区配置的指示信息, 当指示信息为需要时, 根据预设策略为所述用户 终端分配多载波或多小区配置,并通过所述切换请求确认消息携带所 述用户终端的多载波或多小区配置。该预设策略可以根据实际需要灵 活设定, 例如根据用户终端的业务速率要求、 自身节点的资源占用情 况等, 为用户终端分配合适的多载波 /多小区配置。 其中, 所述目标 节点获取所述指示信息, 当指示信息为需要时, 为所述用户终端分配 多载波或多小区配置包括:所述目标节点获取所述切换请求消息中携 带的所述用户终端在目标系统的多载波或多小区能力信息, 当所述用 户终端在目标系统支持多载波或多小区能力时,为所述用户终端分配 多载波或多小区配置; 或者, 所述目标节点获取所述切换请求消息中 携带的所述目标节点的多载波或多小区备选列表,为所述用户终端分 配所述多载波或多小区备选列表中的多载波或多小区配置; 或者, 所 述目标节点获取所述切换请求消息中携带的所述目标节点的多频点 测量信息,才艮据所述多频点测量信息为所述用户终端分配多载波或多 小区配置。
步骤 204, 所述源节点接收所述目标节点发送的携带所述用户终 端的多载波或多小区配置的切换请求确认消息。
步骤 205, 所述源节点向用户终端发送切换命令, 所述切换命令 中携带所述用户终端的多载波或多小区配置。
步骤 206, 所述用户终端根据接收到的切换命令进行多载波或多 小区切换。
需要说明, 本发明实施例中, 用户终端可以首先向源节点上 ^¾自 身异系统多载波或多小区能力信息,即自身是否支持异系统多载波或 多小区的通信。源节点才艮据用户终端上 "¾的异系统多载波或多小区能 力信息向用户终端发送测量配置信息,用户终端根据测量配置信息进 行异系统多载波或多小区测量, 并将测量结果上报源节点。 实施例二
本发明实施例二提供一种系统间切换的方法,以 UE由 E-UTRAN ( Evolved Universal Terrestrial Radio Access Network, 演进的通用陆 地无线接入网 ) 系统切换到 UTRAN系统为例进行说明。
假定 E-UTRAN系统中的一个双模 UE, 在其移动过程中, 满足 了切换到 UTRAN系统的条件, 由源 eNB ( evolved NodeB, 演进的 基站 )通过相应的核心网节点向目标 RNC ( RNC, Radio Network Controller, 即无线网络控制器发送切换请求消息, 目标 RNC接收切 换请求后向源 eNB发送切换请求确认消息, 该切换请求确认消息中 携带了多载波或多小区配置。在 E-UTRAN与 UTRAN系统中,用 eNB 来代表基站, 与用户 UE对应。 源 eNB根据切换请求确认消息向 UE 发送切换命令, UE完成向目标 RNC的接入后, 向目标 RNC发送切 换完成消息, 整个切换过程完成。 切换 UE可以在目标 RNC中直接 工作在多载波(TDD )或者多小区 (FDD )模式, 为 UE提供较高的 数据传输速率。
具体的, 如图 2B所示, 该方法包括以下步骤:
步骤 201 , 源 eNB向 UE发送测量配置消息。
具体的, 源 eNB根据 UE的能力、数据速率, 邻小区邻系统版本 等信息向 UE发送测量配置。 例如 UE支持双模, 支持多载波模式, 数据传输速率较高, 邻小区邻系统也支持多载波, 则源 eNB 的测量 配置需要考虑获得目标节点的其他载波的测量信息。
步骤 202, 源 eNB 接收到 UE 的测量上报消息, 如果满足了 E-UTRAN向 UTRAN的切换条件, 且该 UE支持多载波或者多小区 UTRAN模式, 则向目标 RNC发送携带 UE多载波能力信息、 和 /或 多载波或者多小区信息的切换请求消息。
具体的, 源 eNB发送的切换请求消息中可以携带下述一种或多 种信息:
A、 源 eNB在发往目标 RNC的切换请求消息中除了携带目标小 区标识和 UE的能力信息之外,还可以携带该目标节点的其他载波(主 载波之外的载波) 的测量结果, 其中 UE的能力信息可以包括 UE是 否支持 TDD或 FDD, 是否支持多载波或多小区, 以及 UE支持的频 点信息等;
B、 源 eNB在发往目标 RNC的切换请求消息中携带必要的 UE 多载波能力信息,例如是否支持多载波或多小区,支持的频点信息等;
C、 源 eNB在该 UE支持的频段内, 选择测量结果满足条件的该 目标节点的其他载波,并将其他载波的标号信息或频点信息包含在发 往目标 RNC的切换请求消息中; 例如, 将候选小区或者频点列表信 息携带在切换请求消息中向目标 RNC发送;
D、 源 eNB在该 UE支持的频段内, 将测量结果按降序排列的该 目标节点的其他载波的标号信息或频点信息包含在发往目标 RNC的 切换请求消息中; 降序排列仅为一种具体实现方式, 还可以是其他排 列方式, 本发明实施例对此不做限制。
E、 源 eNB在该 UE支持的频段内, 经该目标节点的其他载波的 测量结果包含在发往目标 RNC的切换请求消息中。
上述选项中测量结果满足的条件可以根据实际需要设置,例如设 置为信号强度阈值, 即信号强度在阈值以上的测量结果属于满足条 件。
源 eNB将切换请求消息通过核心网节点发往目标 RNC。
步骤 203, 目标 RNC接纳源 eNB发送的切换请求消息, 为切换 UE分配多载^多小区配置。
具体的, 目标 RNC可以但不限于根据下述方式为切换 UE分配 多载^多小区配置:
1 )、根据切换请求消息中携带的 UE的能力信息和 /或本节点(即 目标 RNC )其他载波的测量信息, 以及 UE的业务速率要求, 自身节 点的资源占用情况等, 为切换 UE分配合适的多载^多小区配置;
2 )、 根据切换请求消息中携带的其他载波信息, 结合 UE业务速 率要求和自身节点的资源占用情况等, 在载波列表中为切换 UE分配 合适的多载^多小区配置;
3 )、 根据切换请求消息中携带的其他载波信息和顺序, 结合 UE 业务速率要求和自身节点的资源占用情况等,在所列载波列表中为切 换 UE分配合适的多载^多小区配置;
4 )、 根据切换请求消息中携带的测量结果, 结合 UE业务速率要 求和自身节点的资源占用情况等, 将满足条件的载波选择为 UE的多 载波 /多小区, 并生成这些载波 /小区的配置信息。
步骤 204, 目标 RNC将 UE的多载^多小区配置包含在切换请 求确认消息中向源 eNB发送。
步骤 205 , 源 eNB接收到目标 RNC反馈的切换请求确认消息, 如果目标 RNC成功接纳切换请求消息, 则根据切换请求确认消息向 UE发送切换命令, 该切换命令中携带目标多载波 /多小区的配置信 步骤 206, UE接收源 eNB发送的切换命令( Handover to UTRAN Command ),根据该切换命令的接入 UTRAN指示和多载波 /多小区配 置, 完成向 UTRAN的初始接入和配置, 向目标 RNC发送切换完成 命令, 直接在多载波 /多小区上与目标 RNC进行通信。
切换完成后, 源 eNB删除该 UE的资源和上下文等信息。 目标 RNC接纳 UE的切换完成命令, 直接在多载波 /多小区与 UE进行通 信。
其中, 在切换之前, UE需要向源 eNB上报自身的能力信息, 例 如 UE是否支持 UTRAN TDD或 FDD, 是否支持多载波, 支持的频 点信息, 是否支持向 UTRAN的 PS多载波切换等。
其中, Handover to UTRAN Command的具体形式如表 1所示。 表 1
Figure imgf000011_0001
Information Need Multi Type and reference Semantics Version Element/Group name description
(需 (多 (种类和参考) ( 版 (信息成员 /组名称) (语义的描
求) 重) 本) 述)
Ciphering algorithm OP Ciphering algorithm
(加密算法) (加密算法) 10.3.3.4
RNC support for MP Boolean REL-7 change of UE capability
(布尔)
( RNC支持 UE能力的
改变)
New H-RNTI OP H-RNTI 10.3.3.14a REL-6 (新的 H-RNTI )
New Primary OP E-RNTI 10.3.3.10a REL-6 E-RNTI ( 新的 主要
E-RNTI )
New Secondary OP E-RNTI 10.3.3.10a FDD only REL-6 E-RNTI ( 新的 第 二
(仅为 FDD ) E-RNTI )
Specification mode REL-8 information elements
(说明模式信息成员) Information Need Multi Ty e and reference Semantics Version
Element/Group name
(需 (多 (种类和参考) description
( 版
(信息成员 /组名称) (语义的描
求) 重) 本) 述)
Default configuration for OP Default REL-8
CELL_FACH configuration for
( CELL—FACH默认配 CELL—FACH
置) ( CELL—FACH 默
认配置) 10.3.4.0a
CHOICE MP
specification mode (选择
说明模式)
>Complete specification
(完整的说明)
RB information
elements( RB信息成员 )
»Signalling RB MP 1 to For each
information to setup list <maxS signalling
(信令 RB 的建立信息 RBsetu radio bearer 列表) P> established
(为每个信 令无线承载 的建立) Information Need Multi Ty e and reference Semantics Version Element/Group name
(需 (多 (种类和参考) description
( 版 (信息成员 /組名称) (语义的描
求) 重) 本) 述)
»>Signalling RB MP Signalling RB
information to setup (信 information to setup
令 RB建立信息) (信令 RB 建立信
息 ) 10.3.4.24
»RAB information to OP 1 to For each setup list( RAB建立信息 <maxR RAB
列表) ABsetu established P> ( 为 每 个
RAB建立)
»>RAB information for MP RAB information
setup ( RAB建立信息) for setup ( RAB建
立信息) 10.3.4.10
Uplink transport
channels (上行传输信
道)
»UL Transport channel MP UL Transport
information common for channel information
all transport channels (公 common for all
共的上行传输信道信 transport channels
息) (公共的上行传输
信道信息) 10.3.5.24 Information Need Multi Ty e and reference Semantics Version Element/Group name description
(需 (多 (种类和参考) ( 版 (信息成员 /組名称) (语义的描
求) 重) 本) 述)
»Added or MP 1 to
Reconfigured TrCH <maxT
information ( i曽力口或重西己 rCH>
置 TrCH信息)
»>Added or MP Added or
Reconfigured UL TrCH Reconfigured UL
information ( i曽力口或重西己 TrCH information
置 UL TrCH信息) (增力口或重配置
UL TrCH 信息 )
10.3.5.2
Downlink
transport channels (下
行传输信道)
»DL Transport channel MP DL Transport
information common for channel information
all transport channels (公 common for all
共的下行传输信道信 transport channels
息) (公共的下行传输
信道信息 ) 10.3.5.6
»Added or MP 1
Reconfigured TrCH to Information Need Multi Type and reference Semantics Version
Element/Group name description
(需 (多 (种类和参考) ( 版
(信息成员 /组名称) (语义的描
求) 重) 本) 述) information ( i曾力口或重西己 <maxT
置 TrCH信息) rCH>
»>Added or MP Added or
Reconfigured DL TrCH Reconfigured DL
information ( i曾力口或重西己 TrCH information
置 DL TrCH信息) (增加或重配置
DL TrCH信息)
10.3.5.1
Uplink radio resources
(上行无线资源)
»Uplink DPCH info MP Uplink DPCH
(上行 DPCH消息) info 10.3.6.88 (上行
DPCH消息)
»E-DCH Info ( E-DCH OP E-DCH Info REL-6 消息) ( E-DCH消息)
10.3.6.97
»Uplink secondary cell OP Uplink secondary FDD only(仅 REL-9 info FDD (上行第二小区 Information Need Multi Type and reference Semantics Version
Element/Group name description
(需 (多 (种类和参考) ( 版
(信息成员 /组名称) (语义的描
求) 重) 本) 述) 信息 FDD ) cell info FDD 为 FDD )
(上行第二小区信
息 FDD )
10.3.6.115
»Multi-carrier E-DCH OP Multi -carrier 1.28Mcps REL-10
Info for LCR TDD ( LCR E-DCH Info for TDD only(仅
TDD 的多载波 E-DCH LCR TDD ( LCR 为 1.28Mc。s 信息) TDD的多载波 TDD )
E-DCH信息 )
10.3.6. xxx
»Multi-carrier E-DCH OP Multi -carrier TDD 3.84 REL-10
Info for HCR TDD ( HCR E-DCH Info for Mcps or TDD
TDD 的多载波 E-DCH HCR TDD ( HCR 7.68 Mcps
信息) TDD的多载波
E-DCH信息 )
10.3.6. xxx
Downlink radio
resources (下行无线资
源) Information Need Multi Ty e and reference Semantics Version
Element/Group name description
(需 (多 (种类和参考) ( 版
(信息成员 /組名称) (语义的描
求) 重) 本) 述)
»Downlink HS-PDSCH OP Downlink REL-6
Information ( 下 行 HS-PDSCH
HS- PDSCH信息) Information (下行
HS-PDSCH信息)
10.3.6.23a
»Downlink information MP Downlink
common for all radio information
links(下^"无线链路的公 common for all
共信息) radio links (下行无
线链路的公共信
息)
10.3.6.24
»Downlink information MP 1 to
per radio link (每个无线 <maxR
链路下行信息 ) L>
»>Downlink MP Downlink
information for each information for each
radio link(每个无线链路 radio link (每个无
下行信息) 线链路下行信息)
10.3.6.27 Information Need Multi Type and reference Semantics Version Element/Group name description
(需 (多 (种类和参考) ( 版 (信息成员 /組名称) (语义的描
求) 重) 本) 述)
>Preconfiguration ( f西己
»CHOICE MP
Preconfiguration mode
(选择重配置模式)
»>Predefined MP Predefined NOTE 1 (注 configuration ( ί¾西己 ) configuration 释 1 )
identity (预配置标
识 ) 10.3.4.5
»>Default configuration
(默认配置)
»»Default MP Enumerated (FDD, Indicates
configuration mode(默认 TDD) (列举(FDD, whether the 配置模式) TDD ) ) FDD or TDD
version of the default
configuration shall be used
(指出 FDD 或者 TDD版 本是否使用 默认配置
) Information Need Multi Type and reference Semantics Version Element/Group name description
(需 (多 (种类和参考) ( 版 (信息成员 /组名称) (语义的描
求) 重) 本) 述)
»»Default MP Default
configuration identity (默 configuration
认配置标识) identity ( ,默认配置
标识) 10.3.4.0
»»HSPA info ( HSPA OP HSPA info ( HSPA R 信息) 信息) 10.3.6.36f EL-8
»RAB info( RAB信息) OP RAB info Post One RAB is
( RAB信息参见 ) established
10.3.4.9 (一个 RAB
被建立)
»Uplink DPCH info (上 MP Uplink DPCH info
行 DPCH信息) Post(上行 DPCH信
息参见 ) 10.3.6.89
Downlink radio
resources (下行无线资
源)
»Downlink information MP Downlink
common for all radio information
links(下行无线链路公共 common for all
信息) radio links Post (下
行无线链路公共信
息参见) 10.3.6.25 Information Need Multi Ty e and reference Semantics Version
Element/Group name description
(需 (多 (种类和参考) ( 版
(信息成员 /組名称) (语义的描
求) 重) 本) 述)
»Downlink information MP 1 to Send
per radio link (每个无线 <maxR downlink
链路下行信息) L> information
for each radio link to be set-up. (发送 下行信息以 建立各个下 行无线链路 )
In TDD
MaxRL is 1.
»>Downlink MP Downlink
information for each information for each
radio link(各个无线链路 radio link Post(各个
下行信息) 无线链路下行信息
参见)
10.3.6.28
»Downlink secondary OP Downlink secondary FDD R cell info FDD (下行第二 cell info FDD (下 only ( 仅 EL-8 小区信息 FDD ) 行第二小区信息 FDD )
FDD ) 10.3.6.31a
» Additional downlink OP 2 R secondary cell info list EL- 10 Information Need Multi Type and reference Semantics Version Element/Group name description
(需 (多 (种类和参考) ( 版 (信息成员 /组名称) (语义的描
求) 重) 本) 述)
FDD(增加的下行第二小
区信息列表 FDD )
»>Downlink secondary OP Downlink secondary FDD R cell info FDD (下行第二 cell info FDD (下行 only ( 仅 EL- 10 小区信息 FDD ) 第 二 小 区 信 息 FDD )
FDD ) 10.3.6.31a
»Multi-carrier OP Multi -carrier 1.28Mcp R HS-PDSCH Info for LCR HS-PDSCH Info for s TDD only EL- 10 TDD ( LCR TDD的多载 LCR TDD ( LCR ( 仅 波 HS-PDSCH信息) TDD 的 多 载 波 1.28Mcps
HS-PDSCH 信息) TDD )
10.3.6. xxx
»Multi-carrier OP Multi -carrier TDD R HS-PDSCH Info for HCR HS-PDSCH Info for 3.84 Mcps or EL- 10
TDD ( HCR TDD的多载 HCR TDD ( HCR TDD 7.68 波 HS-PDSCH信息) TDD 的 多 载 波 Mcps
HS-PDSCH 信息)
10.3.6. xxx
»CHOICE mode MP
(选择模式)
»>FDD (no data)
»>TDD Information Need Multi Type and reference Semantics Version
Element/Group name description
(需 (多 (种类和参考) ( 版
(信息成员 /組名称) (语义的描
求) 重) 本) 述)
»»Primary MP Primary CCPCH Tx
CCPCH Tx Power (主要 Power ( 主要的
的 CCPCH Tx功率) CCPCH Tx 功率)
10.3.6.59
Frequency info (频 M Frequency info (
率信息) P 率信息)
10.3.6.36
Multi-frequency Info (多 OP Multi -frequency This IE is R 频率信息) Info (多频率信息) used for 1.28 EL-7
10.3.6.39a Mcps TDD
only (此 IE 仅用于 1.28
Mcps TDD )
Maximum allowed UL MP Maximum allowed
TX power ( UL TX被允 UL TX power ( UL
许的最大功率) TX 被允许的最大
功率)
10.3.6.39
表 1中举例说明了在 Handover to UTRAN Command消息中增加 FDD 的多小区配置和 TDD 的多载波配置的方式, 在 Uplink radio resources (上行无线资源) 信息单元中增加了 3 个选项: Uplink secondary cell info FDD , Multi-carrier E-DCH Info for LCR TDD和 Multi-carrier E-DCH Info for HCR TDD,用于描述 FDD的多小区配置 和 TDD的多载波配置。 在 Downlink radio resources (下行无线资源 ) 增力口了选项: Downlink secondary cell info FDD、 Additional downlink secondary cell info list FDD, Multi-carrier HS-PDSCH Info for LCR TDD 和 Multi-carrier HS-PDSCH Info for HCR TDD , 其中选项 Additional downlink secondary cell info list FDD中设置了 Downlink secondary cell info FDD。 本发明实施例中提供的 Handover to UTRAN Command消息中增加 FDD的多小区配置和 TDD的多载波配置的方 式包括但不限于表 1所示的方式。
需要说明, 如果用户终端为 UTRAN-EUTRAN双模终端, 则当 用户终端工作在 UTRAN时, 用户终端向源节点上报在 E-UTRAN中 的载波聚合能力; 当用户终端工作在 E-UTRAN时, 用户终端向源节 点上报在 UTRAN中的多载波或多小区能力。如果用户终端能够工作 在 3GPP系统或非 3GPP系统, 则当用户终端在 3GPP系统工作时, 用户终端向源节点上报在非 3GPP系统中支持多载波的能力; 当用户 终端在非 3GPP系统工作时, 用户终端向源节点上报在 3GPP系统中 支持多载波或多小区的能力。 实施例三
本发明实施例三提供一种系统间切换的方法, 以 UE由其他系统 切换到 UTRAN系统为例进行介绍。
假定一个双模 UE初始工作在非 UTRAN系统(例如 GERAN ), 随着移动, 满足由非 UTRAN系统向 UTRAN系统切换的条件, 如图 3所示, 该方法包括以下步骤:
步骤 301 , 源节点向目标 RNC发送切换请求消息, 该切换请求 消息内携带 UE在 UTRAN中的多载波能力信息。 UE在 UTRAN中 的多载波能力信息包括: 是否支持多载波 /多小区, 支持的频点等。
步骤 302,目标 RNC接收 UE的切换请求消息,根据 UE在 UTRAN 中的多载波能力信息为 UE配置合适的多载^多小区信息,并携带在 切换请求确认消息中向源节点发送。
步骤 303, 源节点根据切换请求确认消息生成并向 UE发送切换 命令 ( Handover to UTRAN Command )。
步骤 304, UE根据多载波 /多小区配置, 完成对目标 UTRAN节 点的接入, 直接开始多载波 /多小区传输。
实施例四
本发明实施例四提供一种系统间切换的方法, 以 UE 由 UTRAN/E-UTRAN系统切换到非 3GPP系统为例进行介绍。
假定一个具有双系统能力的 UE 当前工作在 UTRAN/E-UTRAN 系统, 随着移动, 满足由当前系统向非 3GPP系统(例如 WiMAX系 统)切换的条件。 如图 4所示, 该方法包括以下步骤:
步骤 401 , 如果 UE支持目标系统多载波或多小区模式, 源节点 向目标节点发送携带 UE在目标系统的多载波能力信息的切换请求消 息。
具体的, 切换请求消息中携带 UE在目标系统中的多载波能力信 息, 例如是否支持多载波 /多小区, 支持的频点等。
步骤 402, 目标系统节点根据切换请求消息中携带的多载波能力 信息确定 UE的速率要求和能力,为 UE配置相应的多载^多小区信 息并将配置信息携带在切换请求确认消息中发送。
例如, 目标系统节点为 UE进行 WiMAX多载波配置。
步骤 403, 源节点根据目标系统节点发送的切换请求确认消息向 UE发送切换命令, 其中携带 UE的多载 ^多小区配置信息。
步骤 404, UE根据多载^多小区配置, 完成对目标系统节点的 接入, 直接开始多载波 /多小区传输。
本发明实施例中, 用户终端进行异系统切换时, 目标节点根据用 户终端的切换请求消息,发送携带用户终端的多载波或多小区配置的 切换请求确认消息, 实现了多模终端在不同系统之间的多载波切换。 实施例五 基于与上述方法实施例相同或相似的技术构思,本发明实施例五 提供一种网络节点, 如图 5所示, 包括:
接收单元 10, 用于接收切换请求消息;
发送单元 20, 用于根据所述切换请求消息, 发送携带用户终端 的多载波或多小区配置的切换请求确认消息。
所述切换请求消息中携带所述用户终端的多载波能力信息、 和 / 或多载波或者多小区测量信息、 和 /或候选小区或者频点列表信息。
如图 6所示, 所述发送单元 20包括:
分配子单元 21 , 用于获取所述切换请求消息中携带的所述用户 终端是否需要多载波或多小区配置的指示信息, 当指示信息为需要 时, 根据预设策略为所述用户终端分配多载波或多小区配置;
发送子单元 22, 用于通过所述切换请求确认消息携带所述用户 终端的多载波或多小区配置。
其中, 所述分配子单元 21还用于: 获取所述切换请求消息中携 带的所述用户终端在目标系统的多载波或多小区能力信息; 当所述用 户终端在目标系统支持多载波或多小区能力时,根据预设策略为所述 用户终端分配多载波或多小区配置。所述分配子单元 21还可以用于: 获取所述切换请求消息中携带的所述目标节点的多载波或多小区备 选列表,为所述用户终端分配所述多载波或多小区备选列表中的多载 波或多小区配置。 所述分配子单元 21还可以用于: 获取所述切换请 求消息中携带的所述目标节点的多频点测量信息,根据所述多频点测 量信息为所述用户终端分配多载波或多小区配置。 实施例六
基于与上述方法实施例相同或相似的技术构思,本发明实施例六 提供一种网络节点, 如图 7所示, 包括:
发送单元 30, 用于向目标节点发送用户终端的切换请求消息; 接收单元 40, 用于接收所述目标节点发送的携带所述用户终端 的多载波或多小区配置的切换请求确认消息; 切换单元 50, 用于根据所述切换请求确认消息生成切换命令并 向所述用户终端发送。
所述发送单元 30还用于:
向目标节点发送携带所述用户终端的多载波能力信息、 和 /或多 载波或者多小区信息的切换请求消息、 和 /或候选小区或者频点列表 信息。
如图 8所示, 还可以包括:
配置单元 60, 用于向所述用户终端发送测量配置消息, 所述测 量配置消息中携带所述目标节点的多载波的测量信息;
上报单元 70, 用于接收所述用户终端发送的测量上报消息, 当 所述测量上报消息携带的测量结果满足预设条件时,通知所述发送单 元发送所述切换请求消息。 实施例七
基于与上述方法实施例相同或相似的技术构思,本发明实施例七 提供一种用户终端, 如图 9所示, 包括:
发送单元 91 , 用于向源节点发送测量上报消息;
切换单元 92, 用于根据接收到的切换命令进行多载波或多小区 切换, 所述切换命令中携带所述用户终端的多载波或多小区配置。
如图 10所示, 还包括:
传输单元 93 , 用于完成切换后直接进行多载^多小区模式的数 据传输。
还包括:
能力发送单元 94, 用于向所述源节点发送所述用户终端的异系 统多载波或多小区能力信息;
配置接收单元 95 , 用于接收所述源节点发送的测量配置信息; 测量单元 96, 用于根据所述测量配置信息进行异系统多载波或 多小区测量。
本发明实施例中, 用户终端进行异系统切换时, 目标节点根据用 户终端的切换请求消息,发送携带用户终端的多载波或多小区配置的 切换请求确认消息, 实现了多模终端在不同系统之间的多载波切换。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服 务器, 或者网络设备等)执行本发明各个实施例所述的方法。
本领域技术人员可以理解附图只是一个优选实施例的示意图,附 图中的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同 于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个 模块, 也可以进一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。

Claims

权利要求
1、 一种系统间切换的方法, 其特征在于, 包括:
目标节点接收切换请求消息;
所述目标节点根据所述切换请求消息,发送携带用户终端的多载 波或多小区配置的切换请求确认消息。
2、 如权利要求 1所述的方法, 其特征在于, 所述切换请求消息 中携带所述用户终端的多载波能力信息、 和 /或多载波或者多小区测 量信息、 和 /或候选小区或者频点列表信息。
3、 如权利要求 1所述的方法, 其特征在于, 所述目标节点根据 所述切换请求消息,发送携带用户终端的多载波或多小区配置的切换 请求确认消息包括:
所述目标节点获取所述切换请求消息中携带的所述用户终端是 否需要多载波或多小区配置的指示信息, 当指示信息为需要时, 根据 预设策略为所述用户终端分配多载波或多小区配置,并通过所述切换 请求确认消息携带所述用户终端的多载波或多小区配置。
4、 如权利要求 3所述的方法, 其特征在于, 所述目标节点获取 所述指示信息, 当指示信息为需要时, 根据预设策略为所述用户终端 分配多载波或多小区配置包括:
所述目标节点获取所述切换请求消息中携带的所述用户终端在 目标系统的多载波或多小区能力信息;
当所述用户终端在目标系统支持多载波或多小区能力时,根据预 设策略为所述用户终端分配多载波或多小区配置; 或者,
所述目标节点获取所述切换请求消息中携带的所述目标节点的 多载波或多小区备选列表,为所述用户终端分配所述多载波或多小区 备选列表中的多载波或多小区配置; 或者,
所述目标节点获取所述切换请求消息中携带的所述目标节点的 多频点测量信息,才艮据所述多频点测量信息为所述用户终端分配多载 波或多小区配置。
5、 一种系统间切换的方法, 其特征在于, 包括: 源节点向目标节点发送用户终端的切换请求消息;
所述源节点接收所述目标节点发送的携带所述用户终端的多载 波或多小区配置的切换请求确认消息;
所述源节点根据所述切换请求确认消息生成切换命令并向所述 用户终端发送。
6、 如权利要求 5所述的方法, 其特征在于, 所述源节点向目标 节点发送用户终端的切换请求消息包括:
所述源节点向目标节点发送携带所述用户终端的多载波能力信 息、 和 /或多载波或者多小区信息的切换请求消息、 和 /或候选小区或 者频点列表信息。
7、 一种系统间切换的方法, 其特征在于, 包括:
用户终端向源节点发送测量上报消息;
所述用户终端根据接收到的切换命令进行多载波或多小区切换, 所述切换命令中携带所述用户终端的多载波或多小区配置。
8、 如权利要求 7所述的方法, 其特征在于, 还包括:
所述用户终端完成切换后直接进行多载波 /多小区模式的数据传 输。
9、 如权利要求 7所述的方法, 其特征在于, 所述用户终端向源 节点发送测量上报消息之前, 还包括:
所述用户终端向所述源节点发送所述用户终端的异系统多载波 或多小区能力信息;
所述用户终端接收所述源节点发送的测量配置信息,根据所述测 量配置信息进行异系统多载波或多小区测量。
10、 如权利要求 9所述的方法, 其特征在于, 如果所述用户终端 为通用 陆地无线接入网 -演进的通用 陆基无线接入网 UTRAN-EUTRAN双模终端, 则当所述用户终端工作在 UTRAN时, 所述用户终端向所述源节点上报在 E-UTRAN中的载波聚合能力; 当 所述用户终端工作在 E-UTRAN时, 所述用户终端向所述源节点上艮 在 UTRAN中的多载波或多小区能力。
11、 如权利要求 9所述的方法, 其特征在于, 如果所述用户终端 能够工作在第三代合作伙伴计划 3GPP系统或非 3GPP系统, 则当所 述用户终端在 3GPP系统工作时, 所述用户终端向所述源节点上 4艮在 非 3GPP系统中支持多载波的能力; 当所述用户终端在非 3GPP系统 工作时, 所述用户终端向所述源节点上 >¾在 3GPP系统中支持多载波 或多小区的能力。
12、 一种网络节点, 其特征在于, 包括:
接收单元, 用于接收切换请求消息;
发送单元, 用于根据所述切换请求消息, 发送携带用户终端的多 载波或多小区配置的切换请求确认消息。
13、 如权利要求 12所述的网络节点, 其特征在于, 所述切换请 求消息中携带所述用户终端的多载波能力信息、 和 /或多载波或者多 小区测量信息、 和 /或候选小区或者频点列表信息。
14、 如权利要求 12所述的网络节点, 其特征在于, 所述发送单 元包括:
分配子单元,用于获取所述切换请求消息中携带的所述用户终端 是否需要多载波或多小区配置的指示信息, 当指示信息为需要时, 根 据预设策略为所述用户终端分配多载波或多小区配置;
发送子单元,用于通过所述切换请求确认消息携带所述用户终端 的多载波或多小区配置。
15、 如权利要求 14所述的网络节点, 其特征在于, 所述分配子 单元还用于:获取所述切换请求消息中携带的所述用户终端在目标系 统的多载波或多小区能力信息; 当所述用户终端在目标系统支持多载 波或多小区能力时,根据预设策略为所述用户终端分配多载波或多小 区配置; 或者,
获取所述切换请求消息中携带的所述目标节点的多载波或多小 区备选列表,为所述用户终端分配所述多载波或多小区备选列表中的 多载波或多小区配置; 或者,
获取所述切换请求消息中携带的所述目标节点的多频点测量信 息,根据所述多频点测量信息为所述用户终端分配多载波或多小区配 置。
16、 一种网络节点, 其特征在于, 包括:
发送单元, 用于向目标节点发送用户终端的切换请求消息; 接收单元,用于接收所述目标节点发送的携带所述用户终端的多 载波或多小区配置的切换请求确认消息;
切换单元,用于根据所述切换请求确认消息生成切换命令并向所 述用户终端发送。
17、 如权利要求 16所述的网络节点, 其特征在于, 所述发送单 元还用于:
向目标节点发送携带所述用户终端的多载波能力信息、 和 /或多 载波或者多小区信息的切换请求消息、 和 /或候选小区或者频点列表 信息。
18、 一种用户终端, 其特征在于, 包括:
发送单元, 用于向源节点发送测量上报消息;
切换单元, 用于根据接收到的切换命令进行多载波或多小区切 换, 所述切换命令中携带所述用户终端的多载波或多小区配置。
19、 如权利要求 18所述的用户终端, 其特征在于, 还包括: 传输单元, 用于完成切换后直接进行多载波 /多小区模式的数据 传输。
20、 如权利要求 18所述的用户终端, 其特征在于, 还包括: 能力发送单元,用于向所述源节点发送所述用户终端的异系统多 载波或多小区能力信息;
配置接收单元, 用于接收所述源节点发送的测量配置信息; 测量单元,用于根据所述测量配置信息进行异系统多载波或多小 区测量。
PCT/CN2011/084141 2010-12-23 2011-12-16 系统间切换的方法及设备 WO2012083824A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010106206902A CN102014451A (zh) 2010-12-23 2010-12-23 系统间切换的方法及设备
CN201010620690.2 2010-12-23

Publications (1)

Publication Number Publication Date
WO2012083824A1 true WO2012083824A1 (zh) 2012-06-28

Family

ID=43844409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/084141 WO2012083824A1 (zh) 2010-12-23 2011-12-16 系统间切换的方法及设备

Country Status (2)

Country Link
CN (1) CN102014451A (zh)
WO (1) WO2012083824A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102014451A (zh) * 2010-12-23 2011-04-13 大唐移动通信设备有限公司 系统间切换的方法及设备
CN102958122A (zh) * 2011-08-24 2013-03-06 中兴通讯股份有限公司 群组切换时的承载控制方法及装置
JP6014267B2 (ja) * 2012-09-14 2016-10-25 インターデイジタル パテント ホールディングス インコーポレイテッド 3gppにおける非3gppオフロードを可能にするシステム拡張
EP2911452B1 (en) * 2012-10-26 2018-06-06 Huawei Technologies Co., Ltd. Method, device and system for redirecting air interface connection between systems
CN104168616A (zh) * 2013-05-20 2014-11-26 华为技术有限公司 重定向方法及设备
US10165479B2 (en) * 2014-02-18 2018-12-25 Samsung Electronics Co., Ltd. Method and apparatus for performing handover of carrier aggregation mobile station
CN109451858B (zh) * 2017-10-11 2023-04-18 北京小米移动软件有限公司 Tdd时隙资源配置方法及装置、基站和mme
CN111385811B (zh) * 2018-12-27 2023-04-07 华为技术有限公司 一种无人机通信方法、设备及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030091019A1 (en) * 2001-11-12 2003-05-15 Sony Corporation Radio communication system, radio communication control method, radio communication apparatus, control method for radio communication apparatus, and computer program
CN101808373A (zh) * 2009-02-17 2010-08-18 大唐移动通信设备有限公司 切换过程中支持多载波聚合的方法及装置
CN101888678A (zh) * 2009-05-13 2010-11-17 中国移动通信集团公司 一种异构网络间的切换方法及装置和系统
CN102014451A (zh) * 2010-12-23 2011-04-13 大唐移动通信设备有限公司 系统间切换的方法及设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101873666B (zh) * 2009-04-27 2013-05-15 电信科学技术研究院 通知用户终端多小区协同传输信息的方法、系统及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030091019A1 (en) * 2001-11-12 2003-05-15 Sony Corporation Radio communication system, radio communication control method, radio communication apparatus, control method for radio communication apparatus, and computer program
CN101808373A (zh) * 2009-02-17 2010-08-18 大唐移动通信设备有限公司 切换过程中支持多载波聚合的方法及装置
CN101888678A (zh) * 2009-05-13 2010-11-17 中国移动通信集团公司 一种异构网络间的切换方法及装置和系统
CN102014451A (zh) * 2010-12-23 2011-04-13 大唐移动通信设备有限公司 系统间切换的方法及设备

Also Published As

Publication number Publication date
CN102014451A (zh) 2011-04-13

Similar Documents

Publication Publication Date Title
US11388583B2 (en) Method for reporting capability information and dual mode user equipment adapted thereto
JP6732928B2 (ja) システム情報伝送方法及び基地局とシステム情報受信方法及びユーザ機器
US10694434B2 (en) Method and base station for supporting handover
KR102241827B1 (ko) 복수의 캐리어들을 지원하는 이동 통신 시스템에서 신호 송/수신 방법 및 장치
JP6433084B2 (ja) 複数の通信システムで基地局を探索する方法及びこのための装置
WO2012083824A1 (zh) 系统间切换的方法及设备
WO2012094963A1 (zh) 一种配置小区信息的方法和装置
US11882617B2 (en) Methods for suspending inactive when resuming and resuming inactive when suspending
CN108886446B (zh) 上行链路数据处理方法及其装置
JP2018509853A (ja) 無線通信システムにおけるwlan−lte統合及びインターワーキングのためのオフローディング手続を遂行するための方法及び装置
WO2015164712A1 (en) User equipment and methods for handover initiation
KR20120010645A (ko) 다중 요소 반송파 시스템에서 핸드오버의 수행장치 및 방법
WO2010115304A1 (zh) 一种随机接入方法、演进基站及终端设备
WO2013088398A1 (en) Device to Device Communication
WO2009117942A1 (zh) 一种资源分配方法、装置
KR102047711B1 (ko) 데이터 전송 방법 및 기지국과, 데이터 전달 방법 및 코어 노드
JP6541193B2 (ja) キャリア構成方法およびデバイス
WO2011120310A1 (zh) 传输终端能力的方法、重定位、系统间切换方法及系统
JP6513834B2 (ja) 無線通信システムにおけるlte−wlanの調整を向上させるための方法及び装置
CN106060850B (zh) 一种语音调度方法及装置
CN101594656B (zh) 异系统切换处理方法、系统和装置
WO2012136058A1 (zh) 指示用户设备非相邻载波聚合能力的方法及系统
WO2012041065A1 (zh) 压缩模式启动的控制方法及系统
US20230189299A1 (en) Communication control method
WO2024071245A1 (ja) 通信方法

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: 11851358

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: 11851358

Country of ref document: EP

Kind code of ref document: A1