WO2011153887A1 - 切换信息的传递方法、系统及设备 - Google Patents

切换信息的传递方法、系统及设备 Download PDF

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Publication number
WO2011153887A1
WO2011153887A1 PCT/CN2011/073936 CN2011073936W WO2011153887A1 WO 2011153887 A1 WO2011153887 A1 WO 2011153887A1 CN 2011073936 W CN2011073936 W CN 2011073936W WO 2011153887 A1 WO2011153887 A1 WO 2011153887A1
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WIPO (PCT)
Prior art keywords
serving cell
candidate set
cell
base station
information
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PCT/CN2011/073936
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English (en)
French (fr)
Inventor
李海涛
梁靖
Original Assignee
电信科学技术研究院
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.)
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to EP11791878.9A priority Critical patent/EP2582178B1/en
Priority to KR1020127024433A priority patent/KR101545341B1/ko
Publication of WO2011153887A1 publication Critical patent/WO2011153887A1/zh
Priority to US13/691,749 priority patent/US8996009B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—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
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, system, and device for transmitting handover information. Background technique
  • LTE Long Time Evolution
  • the maximum bandwidth in the LTE system is 20 MHz, as shown in Figure 1. Since the LTE system is a single carrier system, the source base station provides only the information of one cell of the target base station for the admission decision of the target base station when making the handover decision.
  • LTE-A Long Term Evolution Advanced, evolved LTE
  • the peak rate of the system is significantly higher than that of LTE, requiring downlink lGbps and uplink up to 500 Mbps. If only one carrier with a maximum bandwidth of 20MHz is used, the peak rate requirement cannot be reached. Therefore, the LTE-A system needs to expand the bandwidth that the terminal can use, thereby introducing a CA (Carrier Aggregation) technology, that is, multiple consecutive or discontinuous carriers under the same eNB (evolved Node-B, base station). They are aggregated and serve the UE (User Equipment) to provide the required rate. These aggregated carriers are also called CC (Component Carrier).
  • CA Carrier Aggregation
  • Each cell can be a member carrier, and cells (member carriers) under different eNBs cannot be aggregated. In order to ensure that UEs of LTE can work under each aggregated carrier, each carrier does not exceed 20 MHz at most.
  • the CA technology of LTE-A is shown in Figure 2.
  • the LTE-A base station shown in Figure 2 has four carriers that can be aggregated. The base station can perform data transmission with the UE on four carriers at the same time to improve system throughput. .
  • a UE can simultaneously aggregate signaling on multiple carriers for signaling scheduling and Business transmission.
  • the allocation of some uplink resources including channel quality feedback (CQI), dedicated scheduling request (DSR), and uplink HARQ feedback (ACK/NACK)
  • CQI channel quality feedback
  • DSR dedicated scheduling request
  • ACK/NACK uplink HARQ feedback
  • PCC primary carrier
  • SCC secondary carrier
  • the selection of the primary carrier is UE level, that is, all UEs in the system are not required to use the same primary carrier.
  • the uplink and downlink carriers constituting the primary carrier need to satisfy the correspondence indicated in the system information SIB2.
  • a UE can aggregate multiple cells to work simultaneously.
  • the concepts of Pcell (primary serving cell) and Scdl (secondary serving cell) are defined for multiple cells (cells) aggregated by the UE, respectively corresponding to the primary carrier (PCC) cell and secondary carrier currently aggregated by the UE. (SCC) Community.
  • the source eNB carries the indication information of the target eNB to select the Pcell ⁇ , the area, and the Scell cell in the handover information, which is not provided in the prior art. s solution.
  • the embodiment of the invention provides a method, a system and a device for transmitting handover information, which implements the indication information of the PeNB cell and the Scdl cell by the target eNB in the multi-carrier handover process.
  • the embodiment of the invention provides a method for transmitting handover information, including:
  • the source base station sends a handover request to the target base station, and distinguishes the carried primary serving cell candidate set and the secondary serving cell candidate set by the identification information carried in the handover request.
  • the embodiment of the invention provides a method for transmitting handover information, including:
  • the target base station receives the handover request sent by the source base station
  • the target base station distinguishes the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request.
  • An embodiment of the present invention provides a base station, including:
  • a sending unit configured to send a handover request to the target base station, and distinguish the carried primary serving cell candidate set and the secondary serving cell candidate set by using the identifier information carried in the handover request.
  • a base station including:
  • a receiving unit configured to receive a handover request sent by the source base station
  • An embodiment of the present invention provides a handover information delivery system, including a source base station and a target base station;
  • the source base station is configured to receive a measurement report reported by the user terminal, send a handover request to the target base station according to the measurement report, and distinguish the carried primary service cell candidate set and the secondary service by using the identifier information carried in the handover request.
  • Cell candidate set ;
  • the target base station is configured to receive a handover request sent by the source base station, and distinguish the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request.
  • the embodiment of the invention has at least the following advantages:
  • a method for selecting a Pcdl cell and an Scell cell indication information by using a handover information carrying a target eNB in a multi-carrier handover process is provided, and then the target cell is differentiated into a Pcdl cell and an Scell cell, and then selected according to the indication of the source cell.
  • FIG. 2 is a schematic diagram of a CA technology of LTE-A in the prior art
  • FIG. 3 is a schematic diagram of a network configuration event for a UE in a carrier aggregation system in the prior art
  • FIG. 4 is a schematic flow chart of a method for transmitting handover information according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic flow chart of a method for transmitting handover information according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic structural diagram of a base station according to Embodiment 4 of the present invention.
  • FIG. 8 is another schematic structural diagram of a base station according to Embodiment 4 of the present invention. detailed description
  • the handover procedure of the LTE system is first introduced.
  • the handover of the LTE system can be divided into two types from the perspective of the number of participating nodes, that is, intra-eNB handover and inter-eNB handover.
  • the intra-eNB handover may be a handover required to update the key parameters for security reasons.
  • For inter-eNB handover considering the interface type between the source and target base stations, it can be divided into X2 handover and S1 handover, and the messages are transmitted through the X2 and S1 interfaces respectively, so the message of the S1 handover passes through the MME (Mobility Management Entity, Mobile Control Entity) node.
  • MME Mobility Management Entity
  • Mobile Control Entity Mobile Control Entity
  • the handover is also a handover between single carrier cells.
  • the source eNB may initiate a handover request message to the eNB to which the eNB belongs according to the measurement of the UE by selecting a suitable cell; for the blind handover, the source eNB The measurement report of the UE may not be referred to.
  • the source eNB While the single cell handover request is being sent, the source eNB also carries an IE (Information Element) of the ReestablishmentInfo in the container of the RRC (Radio Resource Control Protocol) message, which includes the identity and security key of the reconfigurable cell.
  • the IE of the Reestablishmentlnfo that is, the structure of the ReestablishmentInfo information element is shown below:
  • AdditionalReestablnfoList SEQUENCE ( SIZE (1..maxReestablnfo) ) OF AdditionalReestablnfo
  • each reconfigurable cell in the Reconstruction Information IE is accompanied by a security key
  • the target base station may The RRM algorithm of the body selects other cells in the reconstruction list for admission processing.
  • the cell that is received is finally transparently transmitted to the UE by using the source base station in a handover command.
  • the replacement of the handover cell by the target base station may not be limited by the cell security key provided by the source base station. Because the key of the X2 handover is calculated by the source eNB, and the key of the S1 handover is calculated by the target eNB.
  • the measurement mechanism in the LTE system is specifically:
  • the base station sends the measurement configuration information to the UE through the RRC signaling, and the UE performs measurement according to the content of the measurement configuration information (same frequency, different frequency, different technology), and then reports the measurement result to the network.
  • the measurement configuration information standard frequency, different frequency, different technology
  • the measurement configuration of the network uses the RRC connection reconfiguration process, and the organization structure of the measurement configuration information includes:
  • Measurement object The frequency point is the basic unit. Each configured measurement object is a single frequency point, and has a separate measurement object identifier (ID).
  • Report configuration According to the trigger type, it is divided into events. Trigger reporting and periodic trigger reporting, each reporting configuration has a separate ID. The escalation configuration of the event trigger type is assigned to the threshold of an event and the duration of the trigger condition (Time to Trigger ). The report configuration of the periodic trigger type is assigned to the purpose of the periodic trigger (for example, reporting CGI).
  • Event Al (Serving becomes better than threshold)
  • Event A2 (Serving becomes worse than threshold)
  • the cell channel quality is less than the threshold
  • the event A3 (Neighbour becomes offset better than serving)
  • the event A4 (Neighbour becomes better than threshold)
  • Event A5 (Serving becomes worse than threshold 1 and neighbour becomes better than threshold 2 , the channel quality of the monthly cell is less than the gate! ⁇ 1 , and the channel quality of the neighbor cell is greater than the threshold 2);
  • Measurement ID A separate ID, which can be connected to a measurement object and a report configuration. If the measurement threshold is reached, the UE determines whether to perform the measurement according to the presence or absence of the measurement identifier.
  • Other parameters It may also include other parameters such as measurement configuration, measurement opening threshold, and speed status parameters.
  • the network can configure A1 and A2 events for it (as shown in Figure 3, cell 3 is Pcell, cells 1 and 2 are Scdl, and network is F1). Frequency configuration A1 and A2 events);
  • the network can configure an A3 (same frequency A3) event for the frequency at which it is located.
  • the serving cell of the A3 event is configured for the UE.
  • the Scdl, neighbor cell (the neighboring cell) at the frequency point may be any other cell at the frequency point (as shown in FIG. 3, the network is configured to measure A3 events on the F2 frequency point, and the serving cell is the cell 2);
  • the network can be configured with an A3/A5 event.
  • the serving cell of the A3/A5 event is the current Pcell of the UE, and the neighbor cell can be any cell at the frequency (as shown in Figure 3, for unconfigured Frequency F4, network configuration A3/A5 event measurement, serving cell is Pcell cell 3).
  • a first embodiment of the present invention provides a method for transmitting handover information.
  • the method includes: Step 401: The source base station receives the measurement report reported by the user terminal.
  • Step 403 The target base station receives a handover request sent by the source base station.
  • Step 404 The target base station distinguishes the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request.
  • the identifier information is one of security key information, cell type indication information, or a list type.
  • the candidate primary candidate cell candidate set and the secondary serving cell candidate set are respectively identified by the identifier information carried in the handover request:
  • the source base station sets the security key information as an option; and the source base station is a primary service according to the correspondence between the security key information and the serving cell candidate set.
  • the cell candidate set and the secondary cell candidate set are used to set the security key information.
  • the source cell is a candidate cell of the primary cell and carries the security key information, where the candidate cell of the secondary cell does not carry the security key information.
  • the target base station learns that the cell carrying the security key information is the candidate cell of the primary serving cell, and the cell that does not carry the security key information is the candidate cell of the secondary serving cell.
  • the source base station sets the cell type indication information for each candidate serving cell; the candidate primary serving cell and the candidate secondary serving cell have different cell type indication information;
  • the source base station carries the primary serving cell by using a list corresponding to the primary serving cell candidate set, and the secondary serving cell is carried by the list corresponding to the secondary serving cell candidate set.
  • the target base station distinguishes the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request, including:
  • the target base station distinguishes the primary serving cell candidate according to whether the serving cell candidate set sets the security key information according to the correspondence between the security key information and the serving cell candidate set. Collection and auxiliary service community Selection set
  • the target base station distinguishes each candidate serving cell as a candidate primary serving cell or a candidate secondary serving cell according to the cell type indication information of each candidate serving cell.
  • the target base station distinguishes the primary serving cell candidate set and the secondary serving cell candidate set according to the correspondence between the list type and the serving cell candidate set.
  • the method also includes:
  • the target base station selects a primary serving cell in the primary serving cell candidate set, and selects a secondary serving cell in the primary serving cell candidate set or the secondary serving cell candidate set.
  • a second embodiment of the present invention provides a method for transmitting handover information. As shown in FIG. 5, the method includes:
  • Step 501 The source eNB receives the measurement report reported by the UE.
  • Step 502 The source eNB sends a handover request to the target eNB, where the handover request carries a list of multiple cells, and the cells in the list are divided into Pcell and Scdl.
  • the manner of dividing the cells in the list includes:
  • One part is a candidate cell set dedicated to Pcell, and the other part is a candidate cell set dedicated to Scdl;
  • the entire set is a candidate cell set of the Scdl, and a part of it is a candidate cell set of the Pcell.
  • the PeNB candidate set provided by the source eNB is specifically for the target eNB to select the Pcell, that is, the Scdl is not allowed to be selected from the set, and the Scdl candidate set is a set mutually exclusive with the Pcell candidate set.
  • the source eNB selects only a few cells with the best quality according to the measurement report of the UE and calculates the security key parameter as the candidate set of the target eNB to the Pcell, and other poor quality does not provide the security key.
  • the cell can be used as a Scell candidate set.
  • the candidate set of Pcell can also be used as a candidate set of Scdl, It is not necessarily.
  • the reason is: The cell that can be selected as the Pcdl must also satisfy the criteria for Scdl selection, although the security key information provided is superfluous for Scell selection.
  • the security key information is carried in the handover message
  • the source eNB sets the key information in the ReestablishmentInfo IE to optional (optional), and the key information appears only when the cell is used for the Pcdl candidate.
  • the key information identifier Scell may also be set to appear.
  • the specific structure of the ReestablishmentInfo IE in the handover message is as follows (this structure is only a specific implementation for achieving the purpose of this embodiment):
  • the cell type indication information is carried in the handover message.
  • the source eNB extends a bit (denoted as forPcellSelectionlndication) for each cell in the cell list in the ReestablishmentInfo IE. If the bit is set to 1, it indicates that the source eNB provides the cell to the target eNB for Pcdl selection. Of course, the bit can also be set to other values to identify the cell for Pcell selection. In addition, the bit can also identify the cell for Scell selection.
  • the structure of the ReestablishmentInfo IE in this embodiment is illustrated by an example of the structure of the ReestablishmentInfo IE in a specific handover message. The instance is not used to limit the specific form of the handover message.
  • AdditionalReestablnfoList-RlO SEQUENCE ( SIZE (1..maxReestablnfo) ) OF AdditionalReestablnfo-RlO AdditionalReestablnfo-Rl 0::: SEQUENCE ⁇
  • the third mode carrying the list type in the handover message
  • the cell list in the reconstruction information in the LTE has a key parameter, and thus is applicable to the target eNB to select the Pcell.
  • the candidate set of Pcdl still uses the additionalReestablnfoList IE, and for the Scdl candidate set that does not need to provide the key parameter, an IE is extended in the handover message to carry the information.
  • the structure of the ReestablishmentInfo IE in the handover message is specifically:
  • scellCandidateCellList SEQUENCE ( SIZE (1..maxScellCandidates) ) OF
  • the UE is currently aggregated on the two cells of the frequency points F1 and F2, the cell on the F1 is the Pcdl, and the cell on the F2 is the Scell, and the inter-frequency F3, F4, and F5 are performed according to the measurement configuration delivered by the current source eNB. measuring.
  • the source eNB receives the best quality cell Cdl_3_l and the quality cell Cell_3_2 at the frequency point F3 reported by the UE, and the best quality and the next frequency of the corresponding frequency points F4 and F5 are ⁇ Cell_4_l, Cell_4_2 p ⁇ Cell_5_l, Cdl_5_2 ⁇ .
  • the source eNB When the source eNB sends a handover request to the target eNB, it indicates that ⁇ Cell_3_1, Cdl_4_l ⁇ is a candidate cell set of Pcdl, and indicates that ⁇ Cell_3_2, Cell_4_2, Cell_5_1, Cdl_5_2 ⁇ is a candidate cell set of the Scell.
  • the target eNB finally selects Cell_3_l as the switched Pcdl, and Cell_5_l is the switched Scell, and transmits it to the UE through the handover command.
  • the UE is currently aggregated on the two cells of the frequency points F1 and F2, the cell on the F1 is the Pcdl, and the cell on the F2 is the Scell, and the inter-frequency F3, F4, and F5 are performed according to the measurement configuration delivered by the current source eNB. measuring.
  • the source eNB receives the best cell Cell_3_l on the frequency F3 reported by the UE and the cell Cdl_3_2 in the quality second, corresponding frequency point.
  • the best quality and the next cell on F4 and F5 are ⁇ Cell_4_l, Cell_4_2 p ⁇ Cell_5_l Cdl_5_2 ⁇ .
  • the source eNB carries the candidate cell list ⁇ Cell_3_l, Cell_3_2, Cell_4_l, Cell_4_2, Cell_5_1, Cell_5_2 ⁇ when transmitting the handover request to the target eNB, and indicates that ⁇ Cell_3_l, Cdl_4_l ⁇ is the candidate cell set of the Pcdl.
  • the target eNB finally selects Cell_3_l as the switched Pcell, and Cell_4_l is the switched Scdl, and transmits it to the UE through the handover command.
  • the UE is currently aggregated on the two cells of the frequency points F1 and F2, the cell on the F1 is the Pcdl, and the cell on the F2 is the Scdl, and the inter-frequency F3, F4, and F5 are performed according to the measurement configuration delivered by the current source eNB. measuring.
  • the source eNB receives the best cell Cell_3_1 and the quality Cdl_3_2 of the frequency F3 reported by the UE, and the best quality and the next cell of the corresponding frequency points F4 and F5 are ⁇ Cell_4_l, Cell_4_2 p ⁇ Cell_5_l Cdl_5_2 ⁇ .
  • the source eNB carries the candidate cell list ⁇ Cell_3_l, Cell_3_2, Cell_4_l, Cell_4_2, Cell_5_1, Cell_5_2 ⁇ when transmitting the handover request to the target eNB, and indicates that ⁇ Cell_3_l, Cdl_4_l ⁇ is the candidate cell set of the Pcdl.
  • the target eNB can accept the quality of Cdl_4_3 on the frequency point F4 according to the algorithm.
  • Cdl_3_l is selected as the switched Pcell
  • Cdl_4_3 is the switched Scell, and is transmitted to the UE through the handover command.
  • a method for selecting a Pcdl cell and an Scell cell indication information by using a handover information carrying a target eNB in a multi-carrier handover process is provided, and then the target cell is differentiated into a Pcell cell and an Scell cell, and then selected according to the indication of the source cell.
  • the third embodiment of the present invention provides a base station, as shown in FIG. 6, including:
  • the receiving unit 11 is configured to receive a measurement report reported by the user terminal
  • the sending unit 12 is configured to send a handover request to the target base station according to the measurement report, and distinguish the carried primary candidate cell candidate set and the secondary serving cell candidate set by using the identifier information carried in the handover request.
  • the identifier information is security key information, cell type indication information, or list type. One of them.
  • the sending unit 12 is further configured to:
  • the sending unit 12 carries the security key information of the candidate cell of the primary serving cell, and the candidate cell of the secondary serving cell does not carry the security key information.
  • the sending unit 12 is further configured to:
  • the cell type indication information is set for each candidate serving cell; the candidate primary serving cell and the candidate secondary serving cell have different cell type indication information.
  • the sending unit 12 is further configured to:
  • the primary service cell is carried by the list corresponding to the primary serving cell candidate set
  • the secondary service cell is carried by the list corresponding to the secondary serving cell candidate set.
  • the fourth embodiment of the present invention provides a base station, as shown in FIG. 7, including:
  • the receiving unit 21 is configured to receive a handover request sent by the source base station
  • the distinguishing unit 22 is configured to distinguish the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request.
  • the identification information is one of security key information, cell type indication information, or list type.
  • the distinguishing unit 22 is further configured to:
  • the primary serving cell candidate set and the secondary service are differentiated according to whether the serving cell candidate set sets the security key information.
  • Cell candidate set Specific The distinguishing unit 22 learns that the cell carrying the security key information is the candidate cell of the primary serving cell, and the cell that does not carry the security key information is the candidate cell of the secondary serving cell.
  • the distinguishing unit 22 is further configured to:
  • the candidate primary serving cell or the candidate secondary serving cell is differentiated according to the cell type indication information of each candidate service d and the area.
  • the distinguishing unit 22 is further configured to:
  • the primary serving cell candidate set and the secondary serving cell candidate set are distinguished according to the correspondence between the list type and the serving cell candidate set.
  • the base station provided in this embodiment, as shown in FIG. 8, further includes:
  • the selecting unit 23 is configured to select a primary serving cell in the primary serving cell candidate set, and select a secondary serving cell in the primary serving cell candidate set or the secondary serving cell candidate set.
  • the fifth embodiment of the present invention provides a handover information delivery system, including a source base station and a target base station;
  • the source base station is configured to receive a measurement report reported by the user terminal, send a handover request to the target base station according to the measurement report, and distinguish the carried primary service cell candidate set and the secondary service by using the identifier information carried in the handover request.
  • Cell candidate set ;
  • the target base station is configured to receive a handover request sent by the source base station, and distinguish the primary serving cell candidate set and the secondary serving cell candidate set according to the identifier information carried in the handover request.
  • the source base station performs the method for the target eNB to select the Pcell cell and the indication information of the Scdl cell by using the handover information in the multi-carrier handover process, so that the target cell distinguishes the Pcdl cell and the Scdl cell, and then selects according to the indication of the source cell.
  • Corresponding primary and secondary serving cells are provided.
  • the form of the software product is embodied, the computer software product being stored in a storage medium, including a plurality of instructions for causing a terminal device (which may be a mobile phone, a personal computer, a server, or a network device) to execute the present
  • a terminal device which may be a mobile phone, a personal computer, a server, or a network device.

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Description

切换信息的传递方法、 系统及设备 本申请要求于 2010年 6 月 12 日提交中国专利局， 申请号为 201010205992.3 , 发明名称为 "切换信息的传递方法、 系统及设备" 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， 尤其涉及一种切换信息的传递方法、 系统 及设备。 背景技术
LTE ( Long Time Evolution, 长期演进）及以前的无线通信系统 中， 一个小区中只有一个载波， 在 LTE系统中最大带宽为 20MHz, 如图 1所示。 由于 LTE系统是单载波系统， 源基站在做切换判决时 只提供给目标基站一个小区的信息供目标侧基站做接纳判决。
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, 上行达到 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 ( evolved Node-B , 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, 用户终端）服务， 以提供所需的速率， 这些聚 合在一起的载波又称为 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。 LTE-A的 CA技术如图 2示例， 其中图 2所示 的 LTE-A的基站下有 4个可以聚合的载波， 基站可以同时在 4个载 波上和 UE进行数据传输， 以提高系统吞吐量。
在 LTE-A系统中， UE可同时聚合在多个载波上进行信令调度和 业务传输。 从资源分配的角度上， 目前标准讨论中已经将一些上行资 源（包括信道质量反馈 ( CQI )、 专用调度请求（ DSR )和上行 HARQ 反馈 ( ACK/NACK ) ) 的配置限制在某个上行载波上， 并且定义了主 载波（PCC )的概念， 即将 RAN1引入的三种上行资源配置上的限制 绑定在主载波上。 在 UE聚合的多个载波中， 主载波以外的载波即为 辅载波（SCC )。 主载波的选取是 UE级别的， 即不要求系统中所有 UE—定使用相同的主载波。 另外， 构成主载波的上下行载波需要满 足系统信息 SIB2中指示的对应关系。在载波聚合系统中， UE可以聚 合多个小区同时工作。当前关于测量的讨论中针对 UE聚合的多个 cell (小区）定义了 Pcell (主服务小区）和 Scdl (辅服务小区）的概念， 分别对应了 UE当前聚合的主载波（PCC ) 小区和辅载波（SCC ) 小 区。
但是， 在多载波切换过程中， 当 UE由源 eNB向目标 eNB切换 时，源 eNB如何在切换信息中携带目标 eNB选择 Pcell Ί、区以及 Scell 小区的指示信息， 现有技术中还没有提供相应的解决方案。
发明内容
本发明实施例提供了一种切换信息的传递方法、 系统和设备， 实 现了在多载波切换过程中通过切换信息携带目标 eNB选择 Pcell 小 区以及 Scdl小区的指示信息。
本发明实施例提供了一种切换信息的传递方法， 包括：
源基站向目标基站发送切换请求，通过所述切换请求中携带的标 识信息区分携带的主服务小区候选集合和辅服务小区候选集合。 本发明实施例提供了一种切换信息的传递方法， 包括：
目标基站接收源基站发送的切换请求；
所述目标基站根据所述切换请求中携带的标识信息区分主服务 小区候选集合和辅服务小区候选集合。 本发明实施例提供了一种基站， 包括：
发送单元， 用于向目标基站发送切换请求， 通过所述切换请求中 携带的标识信息区分携带的主服务小区候选集合和辅服务小区候选 集合。 本发明实施例提供了一种基站， 包括：
接收单元， 用于接收源基站发送的切换请求；
区分单元，用于根据所述切换请求中携带的标识信息区分主服务 小区候选集合和辅服务小区候选集合。 本发明实施例提供了一种切换信息的传递系统，包括源基站与目 标基站； 其中，
所述源基站， 用于接收用户终端上报的测量报告， 根据所述测量 报告向所述目标基站发送切换请求，通过所述切换请求中携带的标识 信息区分携带的主服务小区候选集合和辅服务小区候选集合；
所述目标基站， 用于接收所述源基站发送的切换请求， 根据所述 切换请求中携带的标识信息区分主服务小区候选集合和辅服务小区 候选集合。 与现有技术相比， 本发明实施例至少具有以下优点：
本发明实施例中提供了一种多载波切换过程中通过切换信息携 带目标 eNB选择 Pcdl小区以及 Scell小区的指示信息的方法， 进而 使得目标小区区分 Pcdl小区以及 Scell小区，进而根据源小区的指示 选择相应的主服务小区和辅服务小区。 附图说明
为了更清楚地说明本发明的实施例或现有技术中的技术方案，下 面将对本发明的实施例或现有技术描述中所需要使用的附图作筒单 地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可 以根据这些附图获得其他的附图。
图 1是现有技术中 LTE系统中最大带宽示意图；
图 2是现有技术中 LTE-A的 CA技术示意图；
图 3是现有技术中载波聚合系统中网络为 UE配置事件示意图； 图 4是本发明实施例一提供的切换信息的传递方法的流程示意 图；
图 5 是本发明实施例二提供的切换信息的传递方法的流程示意 图；
图 6是本发明实施例三提供的基站的结构示意图；
图 7是本发明实施例四提供的基站的结构示意图；
图 8是本发明实施例四提供的基站的另一结构示意图。 具体实施方式
为了更清楚地介绍本发明实施例中提供的切换信息的传递方法， 下面首先介绍 LTE系统的切换过程。
LTE 系统的切换从参与节点个数的角度可以分为两类， 即 intra-eNB切换和 inter-eNB切换。 其中 intra-eNB切换可以是出于安 全考虑需要更新密钥参数所做的切换。 对于 inter-eNB切换， 考虑到 源和目标基站之间的接口类型， 又可分为 X2切换和 S1切换， 分别 利用 X2 和 S1 接口传递消息， 所以 S1 切换的消息会经过 MME ( Mobility Management Entity, 移动控制实体 )节点。
LTE系统中的 UE由于工作在单个载波上， 因此切换也是单载波 小区之间的切换。通常源 eNB会根据 UE的测量上报选择合适的小区 作为目标向其所属的 eNB发起切换请求消息； 对于盲切换， 源 eNB 可以不参考 UE的测量上报。 在发送单小区切换请求的同时， 源 eNB 还在 RRC ( Radio Resource Control , 无线资源控制协议） 消息的 container中携带一个 Reestablishmentlnfo的 IE (信息单元）， 其中包 含可重建小区的标识和安全密钥等信息，该 Reestablishmentlnfo的 IE, 即 Reestablishmentlnfo information element的结构 ^口下所示：
- ASN1 START
Reestablishmentlnfo：: = SEQUENCE {
sourcePhysCellld PhysCellld,
targetCellShortMAC-I ShortMAC-I,
additionalReestablnfoList AdditionalReestablnfoList
OPTIONAL,
AdditionalReestablnfoList：: = SEQUENCE ( SIZE (1..maxReestablnfo) ) OF AdditionalReestablnfo
AdditionalReestablnfo SEQUENCE{
cellldentity Cellldentity,
key-eNodeB-Star Key-eNodeB-Star,
shortMAC-I ShortMAC-I
Key-eNodeB-Star：: = BIT STRING (SIZE (256))
- ASN1STOP
由于重建信息 IE中的每个可重建小区都附带了安全密钥， 因此 在 X2切换过程中， 目标基站在收到源基站的切换请求后， 可根据自 身的 RRM算法选择该重建列表中的其他小区做接纳处理。 通过接纳 的小区最后通过源基站以切换命令的方式透传给 UE。 对于 S1切换， 目标基站对切换小区的更换可不必受限于源基站提供的小区安全密 钥。 因为 X2切换的密钥是源 eNB计算得到的， 而 S1切换的密钥是 由目标 eNB计算得到的。
其中， LTE系统中的测量机制具体为：
基站通过 RRC信令向 UE发送测量配置信息， UE根据测量配置 信息的内容进行测量（同频、 异频、 异技术）， 然后将测量结果上报 给网络。
其中， 网络进行测量配置使用的是 RRC连接重配过程， 测量配 置信息的组织结构包括：
测量对象（measurement object ): 以频点为基本单位， 每个被配 置的测量对象为一个单独频点， 拥有单独的测量对象标识（ID ); 上报配置（ report configuration ): 按照触发类型分为事件触发上 报和周期触发上报， 每个上报配置拥有单独的 ID。 事件触发类型的 上报配置会配给某一个事件的门限值和满足触发条件的持续时间 ( Time to Trigger ) , 周期性触发类型的上报配置会配给周期性触发的 目的（例如， 上报 CGI )。 目前 LTE系统内的同频 /异频测量事件一共 有五个, 包括： Event Al (Serving becomes better than threshold, 月^务 小区信道质量大于门限) 、 Event A2 (Serving becomes worse than threshold , 月良务小区信道质量小于门限） 、 Event A3 (Neighbour becomes offset better than serving , 4(5小区信道质量优于月^务小区信道 质量)、 Event A4 (Neighbour becomes better than threshold,邻小区信道 质量大于门限) 、 Event A5 (Serving becomes worse than threshold 1 and neighbour becomes better than threshold2 , 月^务小区信道质量小于门! ^ 1 , 同时邻小区信道质量大于门限 2) ；
测量标识（ measurement ID ): 单独的 ID, 可以同时连接一个测 量对象与上报配置； 如果达到了开启测量的门限， UE会根据测量标 识的有无判断是否进行该种测量； 其他参数： 还可能包括测量量配置， 测量开启门限以及速度状态 参数等其他参数。
另外， LTE系统中的测量上报有三种触发方式： 事件触发上报、 周期上报、 事件触发周期上报。 这三种方式根据上报配置中各种参数 的组合进行区分。
目前关于载波聚合系统的测量，在国际标准会议上有以下一些结 论：
对于每一个为 UE配置 （包含激活的和未激活的 ) 的 CC, 网络 都可以为其配置 A1和 A2事件（如图 3所示， 小区 3为 Pcell, 小区 1和 2为 Scdl, 网络为 F1频点配置 A1和 A2事件）；
对于每一个为 UE配置 （包含激活的和未激活的 ) 的 CC, 网络 可以为其所在的频点配置 A3 (同频 A3 )事件， 该 A3事件的 serving cell (服务小区 )为配置给 UE在该频点上的 Scdl, neighbor cell (邻 小区 )可以是该频点上的其他任一个 cell (如图 3 , 网络为 F2频点配 置 A3事件测量， serving cell为小区 2 );
不采用同频 A5事件；
针对任一个频点， 网络可以为其配置 A3/A5事件， 该 A3/A5事 件的 serving cell为 UE当前的 Pcell, neighbor cell可以是该频点上的 任一个 cell (如图 3 , 对于未配置的频点 F4, 网络配置 A3/A5事件测 量, serving cell为 Pcell小区 3 )。
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。 实施例一
本发明实施例一提供一种切换信息的传递方法， 如图 4所示， 包 括： 步骤 401 , 源基站接收用户终端上报的测量报告； 步骤 402, 所述源基站根据所述测量报告向目标基站发送切换请 求，通过所述切换请求中携带的标识信息区分携带的主服务小区候选 集合和辅服务小区候选集合；
步骤 403 , 所述目标基站接收源基站发送的切换请求；
步骤 404, 所述目标基站根据所述切换请求中携带的标识信息区 分主服务小区候选集合和辅服务小区候选集合。
其中， 所述标识信息为安全密钥信息、 小区类型指示信息或者列 表类型中一种。
通过所述切换请求中携带的标识信息区分携带的主服务小区候 选集合和辅服务小区候选集合具体为：
当所述标识信息为安全密钥信息时，所述源基站将所述安全密钥 信息设置为可选项；所述源基站根据所述安全密钥信息与服务小区候 选集合的对应关系为主服务小区候选集合和辅服务小区候选集合设 置所述安全密钥信息； 具体的， 所述源基站为主服务小区的候选小区 携带安全密钥信息， 为辅服务小区的候选小区不携带安全密钥信息； 所述目标基站获知携带安全密钥信息的小区为主服务小区候选小区， 不携带安全密钥信息的小区为辅服务小区候选小区。
当所述标识信息为小区类型指示信息时，所述源基站为每一候选 服务小区设置所述小区类型指示信息；候选主服务小区与候选辅服务 小区的小区类型指示信息不同；
当所述标识信息为列表类型时，所述源基站通过主服务小区候选 集合对应的列表携带主服务小区，通过辅服务小区候选集合对应的列 表携带辅服务小区。
所述目标基站根据所述切换请求中携带的标识信息区分主服务 小区候选集合和辅服务小区候选集合包括：
当所述标识信息为安全密钥信息时，所述目标基站根据所述安全 密钥信息与服务小区候选集合的对应关系，根据服务小区候选集合是 否设置所述安全密钥信息区分主服务小区候选集合和辅服务小区候 选集合；
当所述标识信息为小区类型指示信息时，所述目标基站根据每一 候选服务小区的小区类型指示信息区分所述每一候选服务小区为候 选主服务小区或者候选辅服务小区。
当所述标识信息为列表类型时，所述目标基站根据所述列表类型 与服务小区候选集合的对应关系区分主服务小区候选集合和辅服务 小区候选集合。
该方法还包括：
所述目标基站在所述主服务小区候选集合选择主服务小区，在所 述主服务小区候选集合或者辅服务小区候选集合中选择辅服务小区。 实施例二
本发明实施例二提供一种切换信息的传递方法， 如图 5所示， 包 括：
步骤 501 , 源 eNB接收 UE上报的测量报告。
步骤 502, 源 eNB向目标 eNB发送切换请求， 该切换请求中携 带多个小区的列表， 列表中的小区被划分为 Pcell和 Scdl。
具体的， 列表中的小区的划分方式包括：
A、 一部分作为 Pcell专用的候选小区集合， 另一部分作为 Scdl 专用的候选小区集合；
B、 整个集合是 Scdl的候选小区集合， 其中一部分作为 Pcell的 候选小区集合。
在方式 A中， 源 eNB所提供的 Pcell候选集合是专供目标 eNB 选择 Pcell的， 即不允许 Scdl从该集合中选择， Scdl候选集合是与 Pcell候选集合互斥的集合。 该方式的一个假设是， 源 eNB根据 UE 的测量上报只挑选质量最好的少数几个小区并计算安全密钥参数作 为目标 eNB对 Pcell的候选集合， 其他质量稍差的不提供安全密钥的 小区可作为 Scell候选集合。
在方式 B中， Pcell的候选集合同样可作为 Scdl的候选集合， 反 之则不必然。 原因是： 可作为 Pcdl选择的小区一定也满足了 Scdl 选择的准则， 虽然提供的安全密钥信息对 Scell选择来说是多余的。
下面对列表中的小区的划分方式进行具体介绍。 第一种方式， 在切换消息中携带安全密钥信息；
具体的， 源 eNB将 Reestablishmentlnfo IE中的密钥信息设置为 optional (可选的 ), 仅当该 cell用于 Pcdl候选的时候才出现密钥信 息。 当然， 也可以设置为出现该密钥信息标识 Scell。 此时， 切换消 息中 Reestablishmentlnfo IE的具体结构如下（该结构仅为实现本实施 例目的的一种具体实现方式）：
- ASN1 START
Reestablishmentlnfo：: = SEQUENCE {
sourcePhysCellld PhysCellld,
targetCellShortMAC-I ShortMAC-I,
additionalReestablnfoList AdditionalReestablnfoList
OPTIONAL,
AdditionalReestablnfoList：: = SEQUENCE ( SIZE
(1..maxReestablnfo) ) OF AdditionalReestablnfo
AdditionalReestablnfo：: = SEQUENCE{
cellldentity Cellldentity,
key-eNodeB-Star Key-eNodeB-Star,
OPTIONAL
shortMAC-I ShortMAC-I
OPTIONAL Key-eNodeB-Star：: = BIT STRING (SIZE (256))
- ASN1STOP
第二种方式， 在切换消息中携带小区类型指示信息；
具体的， 源 eNB在 Reestablishmentlnfo IE中的小区列表中为每 一个小区扩展一个 bit (记为 forPcellSelectionlndication ), 如果该 bit 置为 1 ,则表示源 eNB提供该小区给目标 eNB做 Pcdl选择用。当然， 该 bit还可以置为其他值标识小区用于做 Pcell选择用。 另外， 该 bit 也可以标识小区用于做 Scell选择用。 下面通过一种具体的切换消息 中 Reestablishmentlnfo IE 的结构的实例来说明本实施例中 Reestablishmentlnfo IE的结构， 该实例不用于限制切换消息的具体形 式。
- ASN1 START
Reestablishmentlnfo：: = SEQUENCE {
sourcePhysCellld PhysCellld,
targetCellShortMAC-I ShortMAC-I,
additionalReestablnfoList AdditionalReestablnfoList
OPTIONAL,
additionalReestablnfoList-Rl 0
AdditionalReestablnfoList-Rl 0 OPTIONAL,
AdditionalReestablnfoList-RlO：: = SEQUENCE ( SIZE (1..maxReestablnfo) ) OF AdditionalReestablnfo-RlO AdditionalReestablnfo-Rl 0：:: SEQUENCE{
cellldentity Cellldentity,
key-eNodeB-Star Key-eNodeB-Star,
shortMAC-I ShortMAC-I
forPcellSelectionlndication BOOLEAN
Key-eNodeB-Star：: = BIT STRING (SIZE (256))
- ASN1STOP
第三种方式， 在切换消息中携带列表类型；
具体的，该方式下， LTE中重建信息中的小区列表均带密钥参数， 因此本身就适用于目标 eNB做 Pcell的选择。本方式中， Pcdl的候选 集合仍然使用 additionalReestablnfoList这个 IE,对于不需要提供密钥 参数的 Scdl候选集合， 在切换消息中中扩展一个 IE来承载该信息。 此时切换消息中的 Reestablishmentlnfo IE的结构具体为：
- ASN1 START
Reestablishmentlnfo：: = SEQUENCE {
sourcePhysCellld PhysCellld,
targetCellShortMAC-I ShortMAC-I,
additionalReestablnfoList AdditionalReestablnfoList
OPTIONAL,
scellCandidateCellList SEQUENCE ( SIZE (1..maxScellCandidates) ) OF
Cellldentity, AdditionalReestablnfoList：： = SEQUENCE
(1..maxReestablnfo) ) OF AdditionalReestablnfo
AdditionalReestablnfo：: = SEQUENCE{
cellldentity Cellldentity,
key-eNodeB-Star Key-eNodeB-Star,
shortMAC-I ShortMAC-I
Key-eNodeB-Star：: = BIT STRING (SIZE (256))
- ASN1STOP 下面举例说明 UE在源 eNB和目标 eNB之间的切换。
例如， UE当前聚合在频点 F1和 F2的两个小区上， F1上的小区 为 Pcdl, F2上的小区为 Scell,并根据当前源 eNB下发的测量配置对 异频 F3, F4和 F5进行测量。 源 eNB收到了 UE上报的频点 F3上质 量最好的小区 Cdl_3_l和质量其次的小区 Cell_3_2, 相应的频点 F4 和 F5上质量最好和其次的小区为 {Cell_4_l, Cell_4_2 p{ Cell_5_l, Cdl_5_2}。 源 eNB 在给目标 eNB 发切换请求时指示 {Cell_3_l, Cdl_4_l }为 Pcdl的候选小区集合，指示 {Cell_3_2, Cell_4_2, Cell_5_l, Cdl_5_2}为 Scell的候选小区集合。 目标 eNB最后选择了 Cell_3_l 为切换后的 Pcdl, Cell_5_l为切换后的 Scell, 并通过切换命令传给 UE。
例如， UE当前聚合在频点 F1和 F2的两个小区上， F1上的小区 为 Pcdl, F2 上的小区为 Scell, 并根据当前源 eNB下发的测量配置 对异频 F3, F4和 F5进行测量。 源 eNB收到了 UE上报的频点 F3上 质量最好的小区 Cell_3_l 和质量其次的小区 Cdl_3_2, 相应的频点 F4和 F5上质量最好和其次的小区为 {Cell_4_l, Cell_4_2 p{ Cell_5_l Cdl_5_2}。 源 eNB在给目标 eNB发切换请求时携带了候选小区列表 {Cell_3_l, Cell_3_2, Cell_4_l, Cell_4_2, Cell_5_l, Cell_5_2} , 并指示 {Cell_3_l, Cdl_4_l }为 Pcdl的候选小区集合。 目标 eNB最后选择了 Cell_3_l为切换后的 Pcell, Cell_4_l为切换后的 Scdl, 并通过切换 命令传给 UE。
例如， UE当前聚合在频点 F1和 F2的两个小区上， F1上的小区 为 Pcdl, F2 上的小区为 Scdl, 并根据当前源 eNB下发的测量配置 对异频 F3, F4和 F5进行测量。 源 eNB收到了 UE上报的频点 F3上 质量最好的小区 Cell_3_l 和质量其次的小区 Cdl_3_2, 相应的频点 F4和 F5上质量最好和其次的小区为 {Cell_4_l, Cell_4_2 p{ Cell_5_l Cdl_5_2}。 源 eNB在给目标 eNB发切换请求时携带了候选小区列表 {Cell_3_l, Cell_3_2, Cell_4_l, Cell_4_2, Cell_5_l, Cell_5_2} , 并指示 {Cell_3_l, Cdl_4_l }为 Pcdl的候选小区集合。 目标 eNB根据算法猜 测频点 F4上的 Cdl_4_3质量可以接受， 最后选择了 Cdl_3_l为切换 后的 Pcell, Cdl_4_3为切换后的 Scell, 并通过切换命令传给 UE。
本发明实施例中提供了一种多载波切换过程中通过切换信息携 带目标 eNB选择 Pcdl小区以及 Scell小区的指示信息的方法， 进而 使得目标小区区分 Pcell小区以及 Scell小区，进而根据源小区的指示 选择相应的主服务小区和辅服务小区。 实施例三
基于与上述方法实施例相同的技术构思，本发明实施例三提供一 种基站， 如图 6所示， 包括：
接收单元 11 , 用于接收用户终端上报的测量报告；
发送单元 12, 用于根据所述测量报告向目标基站发送切换请求， 通过所述切换请求中携带的标识信息区分携带的主服务小区候选集 合和辅服务小区候选集合。
所述标识信息为安全密钥信息、小区类型指示信息或者列表类型 中一种。
所述发送单元 12还用于：
当所述标识信息为安全密钥信息时，将所述安全密钥信息设置为 可选项；
根据所述安全密钥信息与服务小区候选集合的对应关系为主服 务小区候选集合和辅服务小区候选集合设置所述安全密钥信息。具体 的， 发送单元 12为主服务小区的候选小区携带安全密钥信息， 为辅 服务小区的候选小区不携带安全密钥信息。
所述发送单元 12还用于：
当所述标识信息为小区类型指示信息时，为每一候选服务小区设 置所述小区类型指示信息；候选主服务小区与候选辅服务小区的小区 类型指示信息不同。
所述发送单元 12还用于：
当所述标识信息为列表类型时，通过主服务小区候选集合对应的 列表携带主服务小区，通过辅服务小区候选集合对应的列表携带辅服 务小区。 实施例四
基于与上述方法实施例相同的技术构思，本发明实施例四提供一 种基站， 如图 7所示， 包括：
接收单元 21 , 用于接收源基站发送的切换请求；
区分单元 22, 用于根据所述切换请求中携带的标识信息区分主 服务小区候选集合和辅服务小区候选集合。
所述标识信息为安全密钥信息、小区类型指示信息或者列表类型 中一种。
所述区分单元 22还用于：
当所述标识信息为安全密钥信息时，根据所述安全密钥信息与服 务小区候选集合的对应关系，根据服务小区候选集合是否设置所述安 全密钥信息区分主服务小区候选集合和辅服务小区候选集合。 具体 的， 所述区分单元 22获知携带安全密钥信息的小区为主服务小区候 选小区， 不携带安全密钥信息的小区为辅服务小区候选小区。
所述区分单元 22还用于：
当所述标识信息为小区类型指示信息时，根据每一候选服务 d、区 的小区类型指示信息区分所述每一候选服务小区为候选主服务小区 或者候选辅服务小区。
所述区分单元 22还用于：
当所述标识信息为列表类型时，根据所述列表类型与服务小区候 选集合的对应关系区分主服务小区候选集合和辅服务小区候选集合。
本实施例提供的基站， 如图 8所示， 还包括：
选择单元 23 , 用于在所述主服务小区候选集合选择主服务小区， 在所述主服务小区候选集合或者辅服务小区候选集合中选择辅服务 小区。 实施例五
基于与上述方法实施例相同的技术构思，本发明实施例五提供一 种切换信息的传递系统， 包括源基站与目标基站； 其中，
所述源基站， 用于接收用户终端上报的测量报告， 根据所述测量 报告向所述目标基站发送切换请求，通过所述切换请求中携带的标识 信息区分携带的主服务小区候选集合和辅服务小区候选集合；
所述目标基站， 用于接收所述源基站发送的切换请求， 根据所述 切换请求中携带的标识信息区分主服务小区候选集合和辅服务小区 候选集合。
本发明实施例中，源基站在多载波切换过程中通过切换信息携带 目标 eNB选择 Pcell小区以及 Scdl小区的指示信息的方法， 进而使 得目标小区区分 Pcdl小区以及 Scdl小区，进而根据源小区的指示选 择相应的主服务小区和辅服务小区。 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终端设备（可以是手机，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。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领 域的普通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出 若干改进和润饰， 这些改进和润饰也应视本发明的保护范围。

Claims

权利要求
1、 一种切换信息的传递方法， 其特征在于， 包括：
源基站向目标基站发送切换请求，通过所述切换请求中携带的标 识信息区分携带的主服务小区候选集合和辅服务小区候选集合。
2、 如权利要求 1所述的方法， 其特征在于， 所述标识信息为安 全密钥信息、 小区类型指示信息或者列表类型中一种。
3、 如权利要求 2所述的方法， 其特征在于， 通过所述切换请求 中携带的标识信息区分携带的主服务小区候选集合和辅服务小区候 选集合具体为：
当所述标识信息为安全密钥信息时，所述源基站将所述安全密钥 信息设置为可选项；
所述源基站根据所述安全密钥信息与服务小区候选集合的对应 关系为主服务小区候选集合和辅服务小区候选集合设置所述安全密 钥信息。
4、 如权利要求 3所述的方法， 其特征在于， 所述源基站根据所 述安全密钥信息与服务小区候选集合的对应关系为主服务小区候选 集合和辅服务小区候选集合设置所述安全密钥信息包括：
所述源基站为主服务小区的候选小区携带安全密钥信息，为辅服 务小区的候选小区不携带安全密钥信息。
5、 如权利要求 2所述的方法， 其特征在于， 通过所述切换请求 中携带的标识信息区分携带的主服务小区候选集合和辅服务小区候 选集合具体为：
当所述标识信息为小区类型指示信息时，所述源基站为每一候选 服务小区设置所述小区类型指示信息；候选主服务小区与候选辅服务 小区的小区类型指示信息不同。
6、 如权利要求 2所述的方法， 其特征在于， 通过所述切换请求 中携带的标识信息区分携带的主服务小区候选集合和辅服务小区候 选集合具体为： 当所述标识信息为列表类型时，所述源基站通过主服务小区候选 集合对应的列表携带主服务小区，通过辅服务小区候选集合对应的列 表携带辅服务小区。
7、 一种切换信息的传递方法， 其特征在于， 包括：
目标基站接收源基站发送的切换请求；
所述目标基站根据所述切换请求中携带的标识信息区分主服务 小区候选集合和辅服务小区候选集合。
8、 如权利要求 7所述的方法， 其特征在于， 所述标识信息为安 全密钥信息、 小区类型指示信息或者列表类型中一种。
9、 如权利要求 8所述的方法， 其特征在于， 所述目标基站根据 所述切换请求中携带的标识信息区分主服务小区候选集合和辅服务 小区候选集合包括：
当所述标识信息为安全密钥信息时，所述目标基站根据所述安全 密钥信息与服务小区候选集合的对应关系，根据服务小区候选集合是 否设置所述安全密钥信息区分主服务小区候选集合和辅服务小区候 选集合。
10、 如权利要求 9所述的方法， 其特征在于， 所述目标基站根据 所述安全密钥信息与服务小区候选集合的对应关系，根据服务小区候 选集合是否设置所述安全密钥信息区分主服务小区候选集合和辅服 务小区候选集合包括：
所述目标基站获知携带安全密钥信息的小区为主服务小区候选 小区， 不携带安全密钥信息的小区为辅服务小区候选小区。
11、 如权利要求 8所述的方法， 其特征在于， 所述目标基站根据 所述切换请求中携带的标识信息区分主服务小区候选集合和辅服务 小区候选集合包括：
当所述标识信息为小区类型指示信息时，所述目标基站根据每一 候选服务小区的小区类型指示信息区分所述每一候选服务小区为候 选主服务小区或者候选辅服务小区。
12、 如权利要求 8所述的方法， 其特征在于， 所述目标基站根据 所述切换请求中携带的标识信息区分主服务小区候选集合和辅服务 小区候选集合包括：
当所述标识信息为列表类型时，所述目标基站根据所述列表类型 与服务小区候选集合的对应关系区分主服务小区候选集合和辅服务 小区候选集合。
13、 如权利要求 7-11 中任一项所述的方法， 其特征在于， 还包 括：
所述目标基站在所述主服务小区候选集合选择主服务小区，在所 述主服务小区候选集合和 /或辅服务小区候选集合中选择辅服务小 区。
14、 一种基站， 其特征在于， 包括：
发送单元， 用于向目标基站发送切换请求， 通过所述切换请求中 携带的标识信息区分携带的主服务小区候选集合和辅服务小区候选 集合。
15、 如权利要求 14所述的基站， 其特征在于， 所述标识信息为 安全密钥信息、 小区类型指示信息或者列表类型中一种。
16、 如权利要求 15所述的基站， 其特征在于， 所述发送单元还 用于：
当所述标识信息为安全密钥信息时，将所述安全密钥信息设置为 可选项；
根据所述安全密钥信息与服务小区候选集合的对应关系为主服 务小区候选集合和辅服务小区候选集合设置所述安全密钥信息。
17、 如权利要求 16所述的基站， 其特征在于， 所述发送单元还 用于：
为主服务小区的候选小区携带安全密钥信息，为辅服务小区的候 选小区不携带安全密钥信息。
18、 如权利要求 15所述的基站， 其特征在于， 所述发送单元还 用于：
当所述标识信息为小区类型指示信息时，为每一候选服务小区设 置所述小区类型指示信息；候选主服务小区与候选辅服务小区的小区 类型指示信息不同。
19、 如权利要求 15所述的基站， 其特征在于， 所述发送单元还 用于：
当所述标识信息为列表类型时，通过主服务小区候选集合对应的 列表携带主服务小区，通过辅服务小区候选集合对应的列表携带辅服 务小区。
20、 一种基站， 其特征在于， 包括：
接收单元， 用于接收源基站发送的切换请求；
区分单元，用于根据所述切换请求中携带的标识信息区分主服务 小区候选集合和辅服务小区候选集合。
21、 如权利要求 20所述的基站， 其特征在于， 所述标识信息为 安全密钥信息、 小区类型指示信息或者列表类型中一种。
22、 如权利要求 21所述的基站， 其特征在于， 所述区分单元还 用于：
当所述标识信息为安全密钥信息时，根据所述安全密钥信息与月良 务小区候选集合的对应关系，根据服务小区候选集合是否设置所述安 全密钥信息区分主服务小区候选集合和辅服务小区候选集合。
23、 如权利要求 22所述的基站， 其特征在于， 所述区分单元还 用于：
获知携带安全密钥信息的小区为主服务小区候选小区，不携带安 全密钥信息的小区为辅服务小区候选小区。
24、 如权利要求 21所述的基站， 其特征在于， 所述区分单元还 用于：
当所述标识信息为小区类型指示信息时，根据每一候选服务小区 的小区类型指示信息区分所述每一候选服务小区为候选主服务小区 或者候选辅服务小区。
25、 如权利要求 21所述的基站， 其特征在于， 所述区分单元还 用于：
当所述标识信息为列表类型时，根据所述列表类型与服务 d、区候 选集合的对应关系区分主服务小区候选集合和辅服务小区候选集合。
26、 如权利要求 20-25中任一项所述的基站， 其特征在于， 还包 括：
选择单元， 用于在所述主服务小区候选集合选择主服务小区， 在 所述主服务小区候选集合和 /或辅服务小区候选集合中选择辅服务小 区。
27、 一种切换信息的传递系统， 其特征在于， 包括源基站与目标 基站； 其中，
所述源基站， 用于接收用户终端上报的测量报告， 根据所述测量 报告向所述目标基站发送切换请求，通过所述切换请求中携带的标识 信息区分携带的主服务小区候选集合和辅服务小区候选集合；
所述目标基站， 用于接收所述源基站发送的切换请求， 根据所述 切换请求中携带的标识信息区分主服务小区候选集合和辅服务小区 候选集合。
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CN103517355B (zh) * 2012-06-28 2017-05-24 华为技术有限公司 辅助主小区的调整方法以及基站
CN110290523B (zh) * 2012-12-28 2022-12-27 北京三星通信技术研究有限公司 配置和传输加密密匙的方法
US9603074B2 (en) * 2013-12-16 2017-03-21 Apple Inc. Systems and methods for carrier channel selection in carrier aggregation enabled networks
JP6278109B2 (ja) * 2014-04-11 2018-02-14 富士通株式会社 無線通信システム、基地局および端末
KR20180099332A (ko) * 2017-02-28 2018-09-05 삼성전자주식회사 이동 통신 시스템에서 캐리어를 선택하기 위한 방법 및 장치
CN109413737B (zh) * 2017-08-15 2020-08-18 大唐移动通信设备有限公司 一种基于窄带物联网的寻呼方法和装置
CN114245480B (zh) * 2017-10-30 2024-04-09 北京小米移动软件有限公司 网络连接方法及装置
CN108924890B (zh) * 2018-09-25 2020-11-10 珠海格力电器股份有限公司 移动通信网络切换方法、装置、用户设备和存储介质
WO2020171893A1 (en) * 2019-02-21 2020-08-27 Commscope Technologies Llc Systems and methods for passive collection of neighbor base station configuration information through handover messages
CN111294960B (zh) * 2020-02-12 2023-04-21 北京紫光展锐通信技术有限公司 识别下行控制信息的方法及设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101588610A (zh) * 2008-05-23 2009-11-25 中兴通讯股份有限公司 一种长期演进系统中小区切换方法
CN101600237A (zh) * 2008-06-03 2009-12-09 中兴通讯股份有限公司 切换请求方法及切换请求处理方法
CN101616459A (zh) * 2008-06-24 2009-12-30 上海华为技术有限公司 一种实现小区重选的方法、终端和系统
CN101682877A (zh) * 2007-03-20 2010-03-24 株式会社Ntt都科摩 移动通信系统中的小区信息发送方法以及用户装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI109510B (fi) * 1997-02-28 2002-08-15 Nokia Corp Kanavanvaihto ja puhelunmuodostus matkaviestinjärjestelmässä
US8688120B2 (en) * 2009-09-21 2014-04-01 Electronics And Telecommunications Research Institute Method for handover in multi-carrier system
US9225449B2 (en) * 2012-05-11 2015-12-29 Intel Corporation Performing a handover in a heterogeneous wireless network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682877A (zh) * 2007-03-20 2010-03-24 株式会社Ntt都科摩 移动通信系统中的小区信息发送方法以及用户装置
CN101588610A (zh) * 2008-05-23 2009-11-25 中兴通讯股份有限公司 一种长期演进系统中小区切换方法
CN101600237A (zh) * 2008-06-03 2009-12-09 中兴通讯股份有限公司 切换请求方法及切换请求处理方法
CN101616459A (zh) * 2008-06-24 2009-12-30 上海华为技术有限公司 一种实现小区重选的方法、终端和系统

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