WO2013181848A1 - Procédé, nœud source, équipement utilisateur et système pour déterminer une cellule cible - Google Patents

Procédé, nœud source, équipement utilisateur et système pour déterminer une cellule cible Download PDF

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Publication number
WO2013181848A1
WO2013181848A1 PCT/CN2012/076664 CN2012076664W WO2013181848A1 WO 2013181848 A1 WO2013181848 A1 WO 2013181848A1 CN 2012076664 W CN2012076664 W CN 2012076664W WO 2013181848 A1 WO2013181848 A1 WO 2013181848A1
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WO
WIPO (PCT)
Prior art keywords
measurement result
information
source node
location information
target cell
Prior art date
Application number
PCT/CN2012/076664
Other languages
English (en)
Chinese (zh)
Inventor
徐小英
陈东
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/076664 priority Critical patent/WO2013181848A1/fr
Priority to CN201280000528.8A priority patent/CN103636259A/zh
Publication of WO2013181848A1 publication Critical patent/WO2013181848A1/fr

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Classifications

    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, a source node, a user equipment, and a system for determining a target cell. Background technique
  • the wireless communication field is under pressure from the explosive growth of data services.
  • Hetneteous Network Hetnet
  • the Hetnet is composed of a plurality of cells of different sizes and types, including: a macro cell and a micro cell.
  • the micro-class cell includes: a micro cell, a pico cell, a femto cell, and a remote radio head (RRH) cell.
  • RRH remote radio head
  • the user equipment when the UE is to be switched from the macro cell to the micro cell, the user equipment (UE) does not have the capability of reading the neighbor system information, and only the target cell can be reported to the source node.
  • Primary Scrambling Code which does not identify the target cell.
  • the macro cell has a large number of micro-class neighbors, and at the same time, the macro cell has fewer locations in the neighbor list, so that the micro-cells adjacent to or covered by the macro cell can be placed in the neighbor list, and multiple micro-classes are The cell is likely to reuse the same scrambling code.
  • the source node when the source node receives the target cell scrambling code reported by the UE, the scrambling code may correspond to multiple micro-class cells, and the target cell that the UE desires to access may not be determined.
  • the source node compares the scrambling code with the scrambling code of all neighboring micro-class cells, and sends a link setup request message to one of the micro-class cells matching the scrambling code, since the UE is likely not to be covered by the micro-class cell.
  • the range causes the switch to fail.
  • aspects of the present application provide a method, source node, user equipment, and system for determining a target cell, which can select a correct target cell for the UE to avoid handover errors.
  • An aspect of the application provides a method for determining a target cell, including:
  • the first measurement result includes a target cell scrambling code and location information of the UE
  • Another aspect of the present application provides a method for determining a target cell, including:
  • the source node And reporting, by the source node, the first measurement result, where the first measurement result includes a target cell scrambling code and location information of the UE, so that the source node determines the target cell according to the micro cell information and the first measurement result, where
  • the micro cell information includes a micro cell scrambling code and a micro cell coverage information.
  • a source node including:
  • a first receiving unit configured to receive a first measurement result reported by the user equipment UE, where the first measurement result includes a target cell scrambling code and location information of the UE;
  • a determining unit configured to determine a target cell according to the micro cell information and the first measurement result received by the first receiving unit, where the micro cell information includes a micro cell scrambling code and micro cell coverage information.
  • a user equipment UE including:
  • An acquiring unit configured to acquire location information of the UE
  • a first reporting unit configured to report a first measurement result to the source node, where the first measurement result includes a target cell scrambling code and location information of the UE, so that the source node is configured according to the micro cell information and the first measurement As a result, the target cell is determined, wherein the micro cell information includes a micro cell scrambling code and a micro cell coverage information.
  • Another aspect of the present application provides a system for determining a target cell, including: a source node and a UE, where the source node is configured to receive a first measurement result reported by a user equipment UE, where the first measurement is performed.
  • the result includes the target cell scrambling code and the location information of the UE.
  • the target cell is determined according to the micro cell information and the first measurement result, where the micro cell information includes a micro cell scrambling code and a micro cell coverage information. Acquiring the location information of the UE; reporting the first measurement result to the source node, so that the source node determines the target cell according to the micro cell information and the first measurement result.
  • Another aspect of the present application provides a method for determining a location of a UE of a user equipment, including: establishing a connection with a UE;
  • the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • Another aspect of the present application provides a method for determining a location of a user equipment UE, including: establishing a connection with a source node;
  • the source node And reporting, by the source node, the first measurement result, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • a source node including:
  • a connecting unit configured to establish a connection with the UE
  • an indication unit configured to send a location information report indication to the UE after establishing a connection with the UE, where the location information report indication is used to instruct the UE to report the first measurement result;
  • a receiving unit configured to receive the first measurement result reported by the UE, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • a user equipment UE including:
  • connection unit configured to establish a connection with the source node
  • a receiving unit configured to: after the source node establishes a connection, receive a location information reporting indication sent by the source node, where the location information reporting indication is used to instruct the UE to report the first measurement result;
  • a sending unit configured to receive, by the receiving unit, location information sent by the source node After the indication, the first measurement result is reported to the source node, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • Another aspect of the present application provides a system for determining a location of a UE of a user equipment, including: a source node; and a UE;
  • the source node is configured to establish a connection with the UE, and send a location information reporting indication to the UE, where the location information reporting indication is used to indicate that the UE reports the first measurement result; and the first measurement reported by the UE is received. a result, wherein the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE;
  • the UE is configured to establish a connection with the source node, and receive the location information reporting indication sent by the source node, where the location information reporting indication is used to instruct the UE to report the first measurement result, and report the first measurement result to the source node.
  • a measurement result wherein the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the target cell scrambling code corresponds to more than one micro-class cell
  • the target cell that can satisfy the coverage condition is selected for the UE from the micro-class cell sharing the same scrambling code, thereby avoiding handover error.
  • FIG. 1 is a flowchart of a method for determining a target cell according to an embodiment of the present application
  • FIG. 2 is a flowchart of a method for determining a target cell according to another embodiment of the present application
  • FIG. 3 is a flowchart of a method for determining a target cell according to another embodiment of the present application
  • FIG. 5 is a schematic diagram of a source node in another embodiment of the present application
  • 6 is a schematic diagram of another source node in another embodiment of the present application;
  • FIG. 7 is a schematic diagram of another source node composition in another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a UE composition in another embodiment of the present application.
  • FIG. 9 is a schematic diagram of another UE composition in another embodiment of the present application.
  • FIG. 10 is a schematic diagram of another UE composition in another embodiment of the present application.
  • FIG. 11 is a flowchart of a method for determining a location of a UE according to another embodiment of the present disclosure
  • FIG. 12 is a schematic diagram of a source node according to another embodiment of the present application.
  • FIG. 13 is a schematic diagram of a UE composition in another embodiment of the present application.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can be accessed via a wireless access network (eg, RAN, Radio Access Network) communicating with one or more core networks, which may be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, may be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • a wireless access network eg, RAN, Radio Access Network
  • core networks which may be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, may be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Equipment.
  • a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • the base station controller (source node or target node) may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA. Not limited.
  • BSC base station controller
  • RNC radio network controller
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association that describes the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • An embodiment of the present application provides a method for determining a target cell, as shown in FIG. 1.
  • the 101 Receive a first measurement result reported by the user equipment UE, where the first measurement result includes The location information of the UE, or the target cell scrambling code and the location information of the UE. Or the first measurement result may further include location information of the UE and neighboring cell information detected by the UE, or include location information of the UE, a target cell scrambling code, and neighboring cell information detected by the UE.
  • the UE may report the first measurement result when the measurement report is sent, and may report the first measurement result by using a dedicated message, or may carry the first measurement result in a connection establishment request or other message.
  • the first measurement result may include the target cell scrambling code and the location information of the UE, or may be included in the first measurement result if the source node has obtained the target cell scrambling code determined by the UE by other forms. Location information of the UE.
  • the micro cell information includes a micro cell scrambling code and a micro cell coverage information.
  • the micro cell information may be some information related to the adjacent micro cell stored at the source node, for example, a micro cell identifier, a micro cell scrambling code, a micro cell coverage information, and the like.
  • the source node may further determine that the coverage may be covered according to the location information of the UE and the micro cell coverage information of the candidate micro cell.
  • the candidate micro cell to the location where the UE is located is used as the target cell.
  • the first measurement result reported by the UE may further include: neighboring cell information detected by the UE.
  • the micro cell information stored on the source node may further include: a micro cell neighbor relationship.
  • the source node may further determine possible according to the location information of the UE and the micro cell coverage information of the candidate micro cell. The micro cell whose neighbor relationship is closest to the neighbor cell detected by the UE is used as the target cell.
  • the source node may also determine the target cell by combining the target cell scrambling code, the location information of the UE, and the neighbor information detected by the UE. For example, the target cell scrambling code and the location information of the UE are matched with the micro cell information. If the target cell is not yet determined, the neighbor cell information detected by the UE may be further matched with the micro cell neighbor relationship, thereby being more accurate. Get the target cell. Of course, after comparing the neighboring cell information detected by the UE with the locally stored micro cell neighboring cell relationship according to actual needs, if the target cell cannot be determined yet, the location information of the UE may be further increased.
  • the step of determining the closest micro-class cell as the target cell is not limited in this embodiment of the present application.
  • the method for determining a target cell determines the target cell according to the target cell scrambling code reported by the UE and the location information of the UE, which is compared with the technology for determining the target cell according to the target cell scrambling code only in the prior art.
  • the target cell scrambling code corresponds to more than one micro-class cell
  • the target cell that can satisfy the coverage condition is selected for the UE from the micro-class cell sharing the same scrambling code, thereby avoiding the handover error.
  • Another embodiment of the present application further provides a method for determining a target cell, as shown in FIG. 2.
  • the timing of the UE acquiring the location information of the UE may be configured by the network side, or may be controlled by the UE at the timing of acquiring the location information.
  • the timing at which the UE obtains the location information and the timing at which the UE reports the first measurement result to the source node may be different.
  • the method for obtaining the location information of the UE may be: the UE detects the location information of the UE by using a positioning function.
  • the method for obtaining the location information of the UE may also be: acquiring the location information of the UE, for example, the UE has previously measured the location information of the UE by using the positioning function in an application, and step 201 may be measured before the acquisition. Location information of the UE.
  • the first measurement result is reported to the source node, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the first measurement result may also include location information of the UE and neighboring cell information detected by the UE, or include location information of the UE, a target cell scrambling code, and neighboring cell information detected by the UE.
  • the source node determines the target cell according to the micro cell information and the first measurement result, where the micro cell information includes a micro cell scrambling code and micro cell coverage information.
  • the UE may determine the content of the first measurement result according to actual needs or according to requirements of the source node.
  • the content of the first measurement result may include: location information of the UE, or location information of the UE and a target cell scrambling code, or location information of the UE and neighboring cell information detected by the UE, or location information of the UE, target cell interference.
  • the code and the neighbor information detected by the UE may include: location information of the UE, or location information of the UE and a target cell scrambling code, or location information of the UE and neighboring cell information detected by the UE, or location information of the UE, target cell interference.
  • the UE reports the target cell scrambling code and the location information of the UE to the source node, so that the source node determines the destination according to the target cell scrambling code and the location information of the UE.
  • the target cell may be compared with the technology in the prior art that the target cell is only determined according to the target cell scrambling code, and may be in the micro-class cell sharing the same scrambling code when the target cell scrambling code corresponds to more than one micro-class cell.
  • the UE selects a target cell that can satisfy the coverage condition, thereby avoiding a handover error.
  • Another embodiment of the present application further provides a method for determining a target cell, as shown in FIG.
  • the source node acquires capability information of the UE.
  • the capability information is capability information that the UE reports the first measurement result according to the configuration information.
  • the source node may determine whether to send configuration information to the UE according to the capability information of the UE, so that the UE performs reporting of the measurement of the location information and/or the neighboring area information. In order to save the channel resources, if the UE does not have the capability of reporting the first measurement result according to the configuration information, step 302 and subsequent processes may not be performed.
  • the UE may report the capability information to the source node by using a dedicated or public message of the air interface message, for example, the capability information may be reported to the source node, such as a connection request, a cell update request, or a capability report, and the like. This is not limited.
  • the source node sends configuration information to the UE.
  • the configuration information may be used to indicate that the first measurement result is sent to the UE by using a dedicated message, or may be sent to the UE by using a system broadcast or other message.
  • the configuration information may be explicit, such as indicating cell information that needs to be reported to the UE location.
  • the configuration information may also be implicit.
  • the source node sends a micro-class cell list that shares the same scrambling code to the UE, and the micro-class cells in the list share the same scrambling code, and the UE uses the scrambling code as the candidate target cell interference.
  • the location information of the UE and/or the neighbor information detected by the UE may be reported at the same time.
  • the network may also indicate that the UE needs to report the location information of the UE and/or the neighbor information detected by the UE at the same time for the cells in the micro-small cell list sharing the same scrambling code.
  • the cell type is used as the configuration information.
  • the UE may simultaneously report the location information of the UE and/or the neighbor information detected by the UE. Further, in addition to the implicit indication, the network may also indicate that the UE needs to simultaneously report the location information of the UE and/or the neighbor information detected by the UE when the candidate target cell is a micro-class cell.
  • the configuration information may further include at least one of the following information: The timing of the first measurement result, the content of the first measurement result, and the cell information that needs to report the first measurement result.
  • the source node may configure the UE to report the content of the first measurement result by using the configuration information, where the content of the first measurement result may include at least one of the following: location information of the UE, a target cell scrambling code, and neighboring cell information detected by the UE.
  • the source node may also configure the timing for the UE to report the first measurement result by using the configuration information, where the timing of reporting the first measurement result by the UE may include at least one of the following: the same frequency event trigger, the different frequency event trigger, the different system event Trigger, periodic measurement report, report immediately after receiving the position information report, or immediately report and report.
  • the source node may also configure the cell information that the UE needs to report the first measurement result by using the configuration information, for example, indicating to the UE which cells need to report the location information, or sending a list of the micro-class cells that need to report the first measurement result.
  • the event that triggers the UE to report the first measurement result may be similar to the event that triggers the report of the quality report, and triggers the UE to report the first measurement result by using the same-frequency 1A event. For example, when the signal quality of the neighboring cell is higher than a certain threshold, the UE is triggered. The quality report is reported, and the UE may report the first measurement result at the same time as reporting the quality report. Similarly, the first measurement result may be reported at the same time that the UE reports the inter-frequency and/or different system quality report. Alternatively, the UE may periodically report the first measurement result to the network, and the reported period is configured according to actual needs.
  • the source node configures a timing at which the UE acquires location information.
  • Step 303 is an optional step, and may be before, after, or at other positions in step 301.
  • the timing at which the UE obtains the location information is selected by the UE itself or may be configured by the network side.
  • the timing at which the UE obtains the location information may be at least one of the following:
  • the UE periodically obtains location information, such as acquiring information at the same time in the same frequency measurement, inter-frequency measurement, and different system measurement.
  • the UE obtains the location information by the event triggering. For example, when the signal quality of the serving cell is lower than the specified threshold or the quality of the neighboring cell is higher than the specified threshold, the location information is triggered.
  • the specified threshold may be an event threshold that triggers the UE to report the first measurement result described in step 302, or may be an offset that triggers the UE to report the event threshold of the first measurement result. For example, when the signal quality of the serving cell is lower than 20, the UE may be triggered to report the first measurement result; then the event threshold for triggering the UE to acquire the location information may be 25, that is, when the signal quality of the serving cell is lower than 25, the UE is triggered. Obtain location information.
  • the first measurement result may be triggered by 13 ⁇ 4; then the event threshold for triggering the UE to acquire the location information may be 20, that is, when the signal quality of the serving cell is higher than 20 , triggering the UE to obtain location information.
  • the specified threshold or offset may be configured to the UE through the network side, or may be pre-agreed or pre-configured on the UE side.
  • the UE has received the timing configuration of the location information used to implement other functions in the system. It can use the existing opportunity to obtain location information, or use the acquired location information for implementing other functions.
  • the UE has enabled applications such as positioning, navigation, etc., and can directly use the acquired location information.
  • the UE can trigger the positioning measurement function such as GPS according to the instruction sent by the source node.
  • the UE can trigger a positioning measurement function such as GPS after entering the CELL-DCH.
  • the UE may trigger a positioning measurement function such as GPS after entering the connected state.
  • the UE may trigger a positioning measurement function such as GPS after initiating a voice call. It should be noted that the timing of the UE acquiring the location information may also be other occasions that are not listed. The embodiment of the present application is no longer-exemplified.
  • the UE acquires location information of the UE.
  • the location information of the UE may be based on the GPS positioning information, or based on the OTDOA positioning information, or based on the GANSS positioning information, and may be other types of positioning information, which is not limited by the embodiment of the present application.
  • the UE reports the first measurement result to the source node.
  • the UE may report the first measurement result to the source node, or may report the time to the source node when the timing of reporting the first measurement result configured in the configuration information is met.
  • the first measurement result may include: CELL_DCH, CELL_FACH, CELL PCH, and URA-PCH.
  • the first measurement result may include only the location information of the UE; the target cell scrambling code and the location information of the UE may also be included; the target cell scrambling code and the neighboring cell information detected by the UE may also be included; The cell scrambling code, the location information of the UE, and the neighboring area information detected by the UE.
  • First The content of a measurement result may be determined according to the configuration information, or may be determined according to actual needs.
  • the source node receives the first measurement result reported by the UE.
  • the source node determines the target cell according to the micro cell information and the first measurement result.
  • the source node initiates a handover request to the target cell, and performs a subsequent handover process.
  • step 305 in order to make the process of determining the target cell more concise, the individual steps before the step 305 may be omitted, and the source node sends configuration information to the UE in step 302, and the UE receives the configuration. After the configuration information is obtained, step 305 is executed to report the first measurement result to the source node.
  • the target cell is determined according to the target cell scrambling code reported by the UE and the location information of the UE, and may be in the target cell compared with the prior art that the target cell is determined only according to the target cell scrambling code.
  • the scrambling code corresponds to more than one micro-class cell
  • the target cell that can satisfy the coverage condition is selected for the UE from the micro-class cell sharing the same scrambling code, thereby avoiding the handover error.
  • Another embodiment of the present application further provides a method for determining a target cell, as shown in FIG.
  • the UE reports a second measurement result to the source node, where the second measurement result includes a target cell scrambling code.
  • the source node may determine, according to the target cell scrambling code, whether a unique target cell can be determined. If the target cell can be determined according to the target cell scrambling code, the process may not perform steps 402-406 to initiate a handover request to the target cell for subsequent handover. Process. If the target cell cannot be determined according to the target cell scrambling code, proceed to step 402 to instruct the UE to report the location information.
  • the UE may further receive the second measurement configuration that is sent by the source node.
  • the second measurement configuration is used to configure the UE to report the content and/or timing of the second measurement result.
  • the UE may not be configured to report the location information when the second measurement result is reported, for example, only the information related to the signal quality reported by the UE is configured.
  • the source node sends a location information indication to the UE.
  • the location information reporting indication is used to instruct the UE to report the location information, and the UE may report the first measurement result including the location information immediately after receiving the location information reporting indication, or That is, after the location information is detected, the detected location information is carried in the first measurement result.
  • the UE receives the location information reporting indication sent by the source node.
  • the UE reports the first measurement result to the source node.
  • the content of the first measurement result may be determined according to the needs of the source node. For example, if the source node obtains the target cell scrambling code through step 401, the location information of the UE may be included in the first measurement result and/or the UE detects Neighborhood information.
  • the location information of the stored UE may be acquired and the location information of the UE is immediately reported.
  • the location measurement function may be started, and the current location information is detected and reported.
  • the location measurement function can be activated, and the current location information is re-detected and reported.
  • the UE may determine the content of the first measurement result according to at least one of the following factors: a configuration on the network side, a duration required to acquire the location information, and a moving speed of the UE.
  • the above factors can be used to determine whether the target cell scrambling code and location information are reported at the same time, or the location information and the detected neighboring cell information are reported at the same time, or the target cell scrambling code, the detected neighboring cell information, and the location information are simultaneously reported.
  • the target cell scrambling code and location information may be simultaneously reported. That is, the first measurement result includes a target cell scrambling code and location information. Or, if the time required for the UE to obtain the location information is less than a certain threshold, or the UE mobile speed is lower than a certain threshold, the location information may be reported only, that is, the content of the first measurement result includes the location information of the UE.
  • the source node receives the first measurement result reported by the UE.
  • the source node determines the target cell according to the micro cell information and the first measurement result.
  • the source node initiates a handover request to the target cell, and performs a subsequent handover process.
  • the method for determining a target cell provided by the present application, the target cell is determined according to the target cell scrambling code reported by the UE and the location information of the UE, and the target cell is determined according to the target cell scrambling code only in the prior art.
  • the target cell scrambling code corresponds to more than one micro-class cell
  • the target cell that can satisfy the coverage condition is selected for the UE from the micro-class cell sharing the same scrambling code, thereby avoiding handover error.
  • Another embodiment of the present application further provides a source node, as shown in FIG. 5, including: a first receiving unit 51, and a determining unit 52.
  • the first receiving unit 51 is configured to receive a first measurement result reported by the user equipment UE, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the first measurement result may also include location information of the UE and neighboring cell information detected by the UE, or include location information of the UE, a target cell scrambling code, and neighboring cell information detected by the UE.
  • the determining unit 52 is configured to determine a target cell according to the micro cell information and the first measurement result received by the first receiving unit 51, where the micro cell information includes a micro cell scrambling code and a micro cell coverage information.
  • the first measurement result may further include: neighboring cell information detected by the UE.
  • the micro cell information may further include: a micro cell neighbor relationship.
  • the source node may further include: a first configuration unit 53.
  • the first configuration unit 53 is configured to send configuration information to the UE before the first receiving unit 51 receives the first measurement result reported by the UE.
  • the configuration information is used to indicate that the UE reports the first measurement result. Further, the configuration information may include: reporting timing, content, and/or cell information that needs to report the first measurement result.
  • the timing of reporting the first measurement result by the UE includes at least one of the following: an intra-frequency event trigger, an inter-frequency event trigger, a different-system event trigger, a period measurement report, and the like, and may also be triggered by other events. Embodiments are no longer - for example.
  • the source node may further include: a capability acquiring unit 54.
  • the capability obtaining unit 54 is configured to acquire the capability information of the UE, where the capability information is that the UE reports the first measurement according to the configuration information, before the first configuration unit 53 sends the configuration information to the UE.
  • the first configuration unit 53 may be further configured to: send configuration information to the UE according to the capability information of the UE.
  • the source node may further include: a second configuration unit 55.
  • the second configuration unit 55 is configured to configure, when the first receiving unit 51 receives the first measurement result reported by the UE, the timing of acquiring the location information by the UE.
  • the source node may further include: a second receiving unit 56 and an indicating unit 57.
  • the second receiving unit 56 is configured to receive, after the first receiving unit 51 receives the first measurement result reported by the UE, the second measurement result reported by the UE, where the second measurement result includes a target small area scrambling code.
  • the indication unit 57 is configured to: after the second receiving unit 56 receives the second measurement result reported by the UE, send a location information reporting indication to the UE, so that the UE reports the first measurement result .
  • Another embodiment of the present application further provides a UE, as shown in FIG. 8, including: an obtaining unit 61 and a first upper unit 62.
  • the obtaining unit 61 is configured to acquire location information of the UE.
  • the first reporting unit 62 is configured to report the first measurement result to the source node, where the first measurement result includes the location information of the UE acquired by the acquiring unit 61, or includes the target cell scrambling code and the acquired by the acquiring unit 61.
  • the location information of the UE so that the source node determines the target cell according to the micro cell information and the first measurement result, where the micro cell information includes the micro cell scrambling code and the micro cell coverage information.
  • the first measurement result may further include: neighboring cell information detected by the UE.
  • the micro cell information may further include: a micro cell neighbor relationship. That is, the first measurement result may include the location information of the UE and the neighboring cell information detected by the UE, or include the location information of the UE, the neighboring cell information detected by the UE, and the target cell scrambling code.
  • the UE may further include: a first receiving unit 63.
  • the first receiving unit 63 is configured to receive the configuration information delivered by the source node before the first reporting unit 62 reports the first measurement result to the source node.
  • the configuration information is used to indicate that the UE reports the first measurement result. Further, the configuration information includes at least one of the following information: an opportunity to report the first measurement result, content, and cell information that needs to report the first measurement result.
  • the timing at which the UE reports the first measurement result includes at least one of the following: an intra-frequency event trigger, an inter-frequency event trigger, an inter-system event trigger, a period measurement report, and the like.
  • the UE may further include: a capability sending unit 64.
  • the capability sending unit 64 is configured to send the capability information of the UE to the source node before the first receiving unit 63 receives the configuration information sent by the source node, where the capability information is that the UE is configured according to the The information reports capability information of the first measurement result.
  • the configuration information is: configuration information that is sent by the source node according to the capability information of the UE.
  • the UE may further include: a second receiving unit 65.
  • the second receiving unit 65 is configured to receive the opportunity for acquiring the location information configured by the source node before the acquiring unit 61 acquires the location information of the user equipment UE.
  • the acquiring unit 61 is further configured to: acquire location information of the UE according to the timing of acquiring the location information configured by the source node.
  • the UE may further include: a second reporting unit 66, an indication receiving unit 67.
  • the second reporting unit 66 is configured to report a second measurement result to the source node before the first reporting unit 62 reports the first measurement result to the source node, where the second measurement result includes a target cell scrambling code.
  • the indication receiving unit 67 is configured to receive the location information reporting indication sent by the source node.
  • the first reporting unit 62 is further configured to: after the indication receiving unit 67 receives the location information reporting indication sent by the source node, perform the reporting of the first measurement result to the source node.
  • Another embodiment of the present application further provides a system for determining a target cell, as shown in FIG. 3 or 4, Including: source node and UE.
  • the source node is configured to receive a first measurement result reported by the user equipment UE, where the first measurement result includes a target cell scrambling code and location information of the UE, and the target is determined according to the micro cell information and the first measurement result.
  • the cell, the micro cell information includes a micro cell scrambling code and a micro cell coverage information.
  • the UE is configured to acquire location information of the UE, and report the first measurement result to the source node, so that the source node determines the target cell according to the micro cell information and the first measurement result.
  • the source node, the UE, and the system for determining the target cell determine the target cell according to the target cell scrambling code reported by the UE and the location information of the UE, and the target cell is determined according to the target cell scrambling code only in the prior art.
  • the target cell scrambling code corresponds to more than one micro-class cell
  • the target cell that can satisfy the coverage condition is selected for the UE from the micro-class cell sharing the same scrambling code, thereby avoiding handover error.
  • Another embodiment of the present application provides a method for determining a location of a UE, as shown in FIG.
  • the source node establishes a connection with the UE.
  • the source node sends a location information reporting indication to the UE, where the location information reporting indication is used to instruct the UE to report the first measurement result.
  • the network side may send a location information report indication to the UE after receiving the signal quality report event, or periodically send the location information report indication to the UE, and may also send the message to the UE at any other occasion as needed.
  • the location information reporting instruction is not limited in this embodiment of the present application.
  • the UE may report the first measurement result, where the first measurement result may include the location information of the UE, or include the target cell scrambling code and the location of the UE.
  • the information includes the location information of the UE and the neighboring cell information detected by the UE, or includes the target cell scrambling code, the location information of the UE, and the neighboring cell information detected by the UE.
  • the UE receives the location information reporting indication sent by the source node.
  • the UE reports the first measurement result to the source node, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE. Further, The first measurement result may further include: neighboring cell information detected by the UE.
  • the UE may acquire the location information of the stored UE and immediately report the location information of the UE.
  • the location measurement function may be activated, and the current location information is detected and reported.
  • the location measurement function can be activated to re-detect the current location information and report it.
  • the content of the first measurement result is determined by at least one of the following factors: a configuration on the network side, a duration required to acquire the location information, and a moving speed of the UE. For example, if the time required for the UE to obtain the location information exceeds a certain threshold, or the UE mobile speed is higher than a certain threshold, the target cell scrambling code and the location information of the current UE may be reported simultaneously to ensure that the target cell scrambling code corresponds to the current UE location information. That is, the first measurement result includes a target cell scrambling code and location information.
  • the location information may be reported only, that is, the content of the first measurement result includes the location information of the UE.
  • the source node receives the first measurement result reported by the UE.
  • the source node may acquire the content included in the first measurement result, determine the location of the UE, and/or determine the target cell scrambling code, and/or determine the neighboring cell detected by the UE. relationship.
  • the location information reporting instruction is sent to the UE by the network side, so that the UE reports the first measurement result including at least the location information immediately after receiving the indication of the location information, and the solution is solved.
  • the network side cannot locate the location of the UE, so that the source node can obtain the location information reported by the UE by sending the location information report indication at any required time, thereby enriching the function of the communication system.
  • Another embodiment of the present application further provides a source node, as shown in FIG. 12, including: a connection unit 81, The indicating unit 82 and the receiving unit 83.
  • the connecting unit 81 is configured to establish a connection with the UE.
  • the indicating unit 82 is configured to send a location information reporting indication to the UE after establishing a connection with the UE, where the location information reporting indication is used to instruct the UE to report the first measurement result.
  • the receiving unit 83 is configured to receive the first measurement result reported by the UE, where the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the first measurement result further includes: neighboring cell information detected by the UE.
  • the content of the first measurement result is determined by at least one of the following factors: a configuration on the network side, a duration required to acquire the location information, and a moving speed of the UE.
  • Another embodiment of the present application further provides a UE, as shown in FIG. 13, including: a connection unit 91, a receiving unit 92, and a sending unit 93.
  • the connecting unit 91 is configured to establish a connection with the source node.
  • the receiving unit 92 is configured to: after the source node establishes the connection, receive the location information reporting indication sent by the source node, where the location information reporting indication is used to instruct the UE to report the first measurement result.
  • the sending unit 93 is configured to report the first measurement result to the source node after the receiving unit 92 receives the location information reporting indication sent by the source node, where the first measurement result includes the UE The location information, or the target cell scrambling code and the location information of the UE.
  • the first measurement result may further include: neighboring cell information detected by the UE.
  • the content of the first measurement result is determined by at least one of the following factors: a configuration on the network side, a duration required to acquire the location information, and a moving speed of the UE.
  • Another embodiment of the present application further provides a system for determining a location of a user equipment UE.
  • the system includes: a source node and a UE.
  • the source node is configured to establish a connection with the UE, and send a location information reporting indication to the UE, where the location information reporting indication is used to indicate that the UE reports the first measurement result; and the first measurement reported by the UE is received.
  • the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the UE is configured to establish a connection with the source node, and receive the location information reporting indication sent by the source node, where the location information reporting indication is used to instruct the UE to report the first measurement result, and report the first measurement result to the source node.
  • a measurement result wherein the first measurement result includes location information of the UE, or includes a target cell scrambling code and location information of the UE.
  • the source node, the UE, and the system for determining the location of the UE provide the location information reporting indication to the UE through the network side, so that the UE reports the location information at least after receiving the indication of the location information.
  • the first measurement result solves the problem that the network side cannot locate the UE in the prior art, so that the source node can obtain the location information reported by the UE by sending the location information report indication at any required timing, thereby enabling the function of the communication system. More abundant.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection between the various components shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one single unit. Yuanzhong.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a random access memory (RAM, Random Access).
  • a medium that can store program code such as a Memory), a disk, or an optical disk.

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

Abstract

L'invention porte sur un procédé, un nœud source, un équipement utilisateur et un système pour déterminer une cellule cible, qui concernent le domaine technique des communications, permettant de sélectionner une cellule cible correcte pour un UE et d'éviter une erreur de commutation. Le procédé consiste à : recevoir un premier résultat de mesure rapporté par un équipement utilisateur (UE), le premier résultat de mesure contenant des informations de localisation concernant l'UE, ou contenant un code d'embrouillage de cellule cible et des informations de localisation concernant l'UE; et déterminer une cellule cible conformément à des informations de microcellule et au premier résultat de mesure, les informations de microcellule contenant un code d'embrouillage de microcellule et des informations de zone de couverture de microcellule. Les modes de réalisation de la présente demande sont principalement utilisés dans le processus de détermination d'une cellule cible.
PCT/CN2012/076664 2012-06-08 2012-06-08 Procédé, nœud source, équipement utilisateur et système pour déterminer une cellule cible WO2013181848A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/076664 WO2013181848A1 (fr) 2012-06-08 2012-06-08 Procédé, nœud source, équipement utilisateur et système pour déterminer une cellule cible
CN201280000528.8A CN103636259A (zh) 2012-06-08 2012-06-08 确定目标小区的方法、源节点、用户设备及系统

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PCT/CN2012/076664 WO2013181848A1 (fr) 2012-06-08 2012-06-08 Procédé, nœud source, équipement utilisateur et système pour déterminer une cellule cible

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100093358A1 (en) * 2008-10-13 2010-04-15 Samsung Electronics Co. Ltd. Wireless communication system and handover method therein
WO2011082831A1 (fr) * 2010-01-08 2011-07-14 Nokia Siemens Networks Oy Détermination géographique de couverture dans des systèmes de communication
CN102474825A (zh) * 2009-06-30 2012-05-23 阿尔卡特朗讯公司 毫微微蜂窝布置

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Publication number Priority date Publication date Assignee Title
CN101980567B (zh) * 2010-10-12 2013-10-09 华为技术有限公司 切换目标小区的确定方法及系统、接入网设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100093358A1 (en) * 2008-10-13 2010-04-15 Samsung Electronics Co. Ltd. Wireless communication system and handover method therein
CN102474825A (zh) * 2009-06-30 2012-05-23 阿尔卡特朗讯公司 毫微微蜂窝布置
WO2011082831A1 (fr) * 2010-01-08 2011-07-14 Nokia Siemens Networks Oy Détermination géographique de couverture dans des systèmes de communication

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