WO2018059524A1 - Procédé et dispositif d'acquisition d'informations, procédé et dispositif de transfert de cellule et procédé et dispositif de sélection ou de resélection de cellule - Google Patents

Procédé et dispositif d'acquisition d'informations, procédé et dispositif de transfert de cellule et procédé et dispositif de sélection ou de resélection de cellule Download PDF

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Publication number
WO2018059524A1
WO2018059524A1 PCT/CN2017/104160 CN2017104160W WO2018059524A1 WO 2018059524 A1 WO2018059524 A1 WO 2018059524A1 CN 2017104160 W CN2017104160 W CN 2017104160W WO 2018059524 A1 WO2018059524 A1 WO 2018059524A1
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WIPO (PCT)
Prior art keywords
base station
target base
channel occupation
occupation information
user equipment
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PCT/CN2017/104160
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English (en)
Chinese (zh)
Inventor
董洪
孙立新
丁颖哲
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北京佰才邦技术有限公司
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Publication of WO2018059524A1 publication Critical patent/WO2018059524A1/fr

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    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an information acquisition method and apparatus, a cell handover method and apparatus, and a method and apparatus for cell selection or reselection.
  • MulteFire is a wireless access technology that extends Long Term Evolution (LTE) to unlicensed bands. This technique can operate independently in the unlicensed spectrum without the aid of a licensed band carrier.
  • LTE Long Term Evolution
  • the MF physical layer introduces WiFi-like carrier sensing technology first. Listen to the (Listen Before Talk, LBT) mechanism. When the base station or terminal monitors that the unlicensed band channel is occupied, that is, when the LBT fails, the signal is stopped, and when the channel is idle, that is, when the LBT is successful, the signal is transmitted.
  • the channel occupancy information detected by the base station side cannot be acquired by the user equipment UE.
  • the base station performs handover estimation on the UE in the RRC connection state of the radio resource control, the base station does not use the channel occupation information detected by its neighboring base station.
  • the UE selects only according to RSRP (Reference Signal Receiving Power) or RSRQ (Reference Signal Receiving Quality), and does not use the channel detected by the surrounding base station. Occupy information.
  • the UE will switch or select a base station that is busy with one channel, that is, a base station that the LBT often fails, so that the UE cannot receive or transmit a signal, resulting in a large delay.
  • the method and apparatus for information acquisition, cell handover, cell selection, or reselection provided by the present disclosure enable the UE to switch or select a base station that occupies an idle channel, thereby improving the chance of the UE transmitting and receiving signals and avoiding a large delay.
  • an embodiment of the present disclosure provides an information acquiring method applied to a base station, where the information acquiring method includes: acquiring channel occupation information of a first target base station.
  • an embodiment of the present disclosure provides an information acquiring method applied to a user equipment, where the information acquiring method includes: acquiring channel occupation information of a second target base station.
  • an embodiment of the present disclosure provides a cell handover method applied to a base station, where the cell handover method includes: acquiring channel occupancy information of at least one first target base station; and receiving the at least one first reported by the user equipment. a first measurement value of the target base station associated with receiving the reference signal; and determining, according to the channel occupancy information and the first measurement value, a handover target base station of the user equipment in the at least one first target base station.
  • an embodiment of the present disclosure provides a method for cell selection or reselection applied to a user equipment, where the method for selecting or reselecting a cell includes: acquiring channel occupation information of at least one second target base station; Determining, by the at least one second target base station, a second measurement value related to the received reference signal; and determining, according to the channel occupancy information and the second measurement value, the user equipment of the at least one second target base station Host the target base station.
  • an embodiment of the present disclosure provides an information acquiring apparatus applied to a base station, where the information acquiring apparatus includes a first acquiring module for acquiring channel occupation information of a first target base station.
  • an embodiment of the present disclosure provides an information acquiring apparatus applied to a user equipment, where the information acquiring apparatus includes a second acquiring module for acquiring channel occupation information of a second target base station.
  • the disclosed embodiment provides a cell switching apparatus that is applied to a base station, where the cell switching apparatus includes: a first acquiring module, configured to acquire channel occupation information of at least one first target base station; and a receiving module, configured to: Receiving, by the user equipment, the first measurement value related to the received reference signal of the at least one first target base station; and the first determining module, configured to determine, according to the channel occupancy information and the first measurement value, a handover target base station of the user equipment in at least one first target base station.
  • an embodiment of the present disclosure provides an apparatus for selecting or reselecting a cell of a user equipment, where the apparatus for selecting or reselecting the cell includes: a second acquiring module, configured to acquire at least one Channel acquisition information of the second target base station; a third acquiring module, configured to acquire a second measurement value related to the received reference signal of the at least one second target base station; and a second determining module, configured to use the channel according to the channel And the second measured value determines a resident target base station of the user equipment in the at least one second target base station.
  • an embodiment of the present disclosure provides a base station, including: a first memory, configured to store a software program; and a first processor, the first processor executing the software program to execute the above The method of the third aspect.
  • an embodiment of the present disclosure provides a user equipment, where the user equipment includes: a second memory, configured to store a software program; and a second processor; the second processor, by running the software program The method described in the fourth aspect above is performed.
  • an embodiment of the present disclosure provides a nonvolatile storage medium having instructions stored on the nonvolatile storage medium, the instructions being implemented by a processor when implemented by a processor The method of the third aspect.
  • an embodiment of the present disclosure provides a nonvolatile storage medium having stored thereon instructions that, when executed by a processor, implement the above The method of the fourth aspect.
  • the technical solution of the present disclosure can obtain the channel occupancy information of the first target base station, and enable the base station to use the acquired channel occupation information of the neighboring base station to ensure that the UE switches to a base station occupying idle channels when performing handover evaluation on the UE. And improving the opportunity for the UE to send and receive signals, and avoiding a large delay; and obtaining the channel occupation information of the second target base station, so that the UE can use the acquired channel occupation information of the surrounding base station when performing cell selection/reselection.
  • the UE is guaranteed to select a channel to occupy an idle base station, thereby improving the chance of the UE transmitting and receiving signals and avoiding a large delay.
  • FIG. 1 is a schematic flowchart diagram of an information acquisition method according to an embodiment of the present disclosure.
  • FIG. 2 to 13 are schematic flowcharts showing a specific example of acquiring channel occupation information in the embodiment shown in FIG. 1.
  • FIG. 14 is a schematic flowchart diagram of an information acquisition method according to an embodiment of the present disclosure.
  • 15 to 17 are flowcharts showing a specific example of acquiring channel occupation information in the embodiment shown in FIG. 14.
  • FIG. 18 is a schematic flowchart diagram of a cell handover method according to an embodiment of the present disclosure.
  • FIG. 19 is a flow chart showing a method of cell selection or reselection according to an embodiment of the present disclosure.
  • FIG. 20 is a block diagram showing the structure of an information acquiring apparatus according to an embodiment of the present disclosure.
  • FIG. 21 is a block diagram showing the structure of an information acquiring apparatus according to an embodiment of the present disclosure.
  • FIG. 22A is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present disclosure.
  • 22B and 22C are diagrams showing a detailed configuration of a module of the cell switching apparatus shown in Fig. 22A.
  • FIG. 23A is a schematic structural diagram of an apparatus for cell selection or reselection according to an embodiment of the present disclosure.
  • FIG. 23B and 23C are diagrams showing a detailed configuration of a module of the apparatus for cell selection or reselection shown in Fig. 23A.
  • FIG. 24 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 25 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • the channel occupation information of the base station reflects the situation that the channel detected by the base station is being occupied.
  • Channel occupancy may be occupied by communication nodes of other technologies, such as wireless fidelity WiFi wireless access nodes, WiFi infrastructure, etc., or may be occupied by other base stations.
  • the definition of the channel occupation information should reflect the situation that the channel detected by the location of the base station is occupied, and can be specifically defined as: the channel is sent by the base station due to the transmission of data for a period of time.
  • the channel occupancy detection here may be a Clear Channel Assessment (CCA), or other channel detection, such as an initial idle channel assessment or an extended idle channel assessment.
  • CCA Clear Channel Assessment
  • the success of the channel occupancy detection may refer to the success of the CCA once, or the energy or power of the received signal of the channel is lower than a threshold. It may also refer to the success of multiple consecutive detections. The disclosure does not limit it, depending on the actual situation of the base station. .
  • an embodiment of the present disclosure shown in FIG. 1 provides an information acquisition method, which is applied to a base station and includes the following step 101.
  • Step 101 Acquire channel occupation information of the first target base station.
  • the first target base station refers to a base station adjacent to the execution subject base station in the embodiment of the present disclosure shown in FIG. 1, that is, a base station to which the neighboring cell belongs.
  • the base station to which the neighboring cell belongs may be one or more.
  • the information acquiring method of the embodiment of the present disclosure shown in FIG. 1 can obtain the channel occupation information of the neighboring base station when the base station performs handover evaluation on the user equipment UE by acquiring the channel occupation information of the first target base station.
  • the UE is guaranteed to switch to a channel that occupies an idle base station, thereby improving the chance of the UE transmitting and receiving signals and avoiding a large delay.
  • the following four methods when acquiring the channel occupation information of the first target base station, the following four methods may be adopted:
  • Manner 1 The channel occupancy information sent by the first target base station is obtained through the X2 interface.
  • the base station may directly receive the message that includes the channel occupation information sent by the first target base station by using the X2 interface, or may receive the content that is sent by the first target base station by using the X2 interface after sending the channel occupation information request message to the first target base station.
  • the channel occupies information message (X2 message) to obtain channel occupation information of the first target base station.
  • the channel occupation information request message may include one or more network identification information and cell identification information of a neighboring cell (such as a Public Land Mobile Network (PLMN) identifier PLMN-ID, and a Neutral Host Network (NHN). Identification (NHN-ID), Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Cell Global Identifier (ECGI) and carrier frequency number.
  • PLMN Public Land Mobile Network
  • NPN Neutral Host Network
  • Identification (NHN-ID), Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Cell Global Identifier (ECGI) and carrier frequency number.
  • the X2 message sent by the first target base station may include one or more network identification information of the neighboring cell and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency, and corresponding channel occupation. Use information.
  • the above channel occupation information request message or the X2 message containing the channel occupation information may be an X2 message specified in the standard, or may be a new X2 message.
  • the channel occupancy information sent by the first target base station is obtained through the X2 interface.
  • the base station after the X2 interface communication is established between the base station and the first target base station, the base station directly receives the Channel Occupation Indication message (ie, the channel occupation information indication message) that is actively sent by the first target base station and includes the channel occupation information through the X2 interface.
  • the Channel Occupation Indication message ie, the channel occupation information indication message
  • the base station After the X2 interface communication is established between the base station and the first target base station, the base station first sends a Channel Occupation Request message (ie, a channel occupation information request message) to the first target base station through the X2 interface, and then receives the first target base station to send.
  • a Channel Occupation Request message ie, a channel occupation information request message
  • a Channel Occupation Response message containing channel occupancy information (ie, a channel occupation information response message).
  • the base station first sends a Resource Status Request message (ie, a resource status request message) through the X2 interface to configure a channel occupation information transmission period for the first target base station. And then receiving a Resource Status Response message (ie, a resource status response message) sent by the first target base station and a Resource Status Update message (ie, a resource status update message) containing channel occupation information.
  • a Resource Status Request message ie, a resource status request message
  • a Resource Status Update message ie, a resource status update message
  • the channel Occupation Indication message, the Channel Occupation Response message, or the Resource Status Update message includes a channel occupation information field, where the channel occupation information field is used by the first target base station to transmit corresponding channel occupation information.
  • the channel occupancy information field may have, but is not limited to, the following encoding format:
  • Manner 2 Obtain channel occupation information sent by the first target base station through the S1 interface.
  • the base station may directly receive the S1 message that is sent by the first target base station and is forwarded by the mobility management entity (MME), and the base station may also send the channel occupation information request message to the first target base station. And receiving an S1 message that is sent by the first target base station and is forwarded by the MME and includes channel occupation information, to obtain channel occupation information of the first target base station.
  • MME mobility management entity
  • the channel occupation information request message may include one or more network identification information of the neighboring cell and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number.
  • the S1 message sent by the first target base station may include one or more network identification information of the neighboring cell and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number, and corresponding channel occupation information.
  • the above-mentioned channel occupation information request message or the S1 message including the channel occupation information may be an S1 message specified in the standard, or may be a new S1 message.
  • the channel occupancy information sent by the first target base station is obtained through the S1 interface.
  • the first target base station first sends an eNB Channel Occupation Indication message to the MME through the S1 interface, and then the base station receives the MME Channel Occupation Indication message including the channel occupation information forwarded by the MME.
  • the base station first sends a Channel Occupation Request message to the MME through the S1 interface, and the MME forwards the Channel Occupation Request message to the first target base station, and then the base station receives the channel occupancy information that the first target base station forwards through the MME on the S1 interface.
  • Channel Occupation Response message is a Channel Occupation Response message.
  • the base station first sends a Channel Occupation Request message to the MME through the S1 interface, and the MME forwards the Channel Occupation Request message to the first target base station to configure a transmission period of the channel occupation information for the first target base station, and then the base station receives the first target.
  • the base station transmits a Channel Occupation Response message and a Channel Occupation Update message including channel occupation information forwarded by the MME on the S1 interface.
  • the MME of the base station sends a Channel Occupation to the first target base station.
  • the request message may be forwarded by the MME of the first target base station, that is, the MME of the base station first sends a Channel Occupation Request message to the MME of the first target base station, and then the MME of the first target base station forwards the Channel Occupation Request message to the first Target base station.
  • the eNB Channel Occupation Indication message, the MME Channel Occupation Indication message, the Channel Occupation Response message, or the Channel Occupation Update message includes a channel occupation information field, and is used by the first target base station to transmit corresponding channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • Manner 3 Obtain channel occupation information sent by the first target base station through the Uu interface.
  • the base station may directly receive the Uu interface message that is sent by the first target base station and includes the channel occupation information, or may send the first target base station through the Uu interface after sending the channel occupation information request message to the first target base station.
  • the transmitted Uu interface message containing the channel occupation information is used to obtain channel occupation information of the first target base station.
  • the channel occupation information request message may include one or more network identification information and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number of the neighboring cell.
  • the Uu interface message sent by the first target base station may include one or more network identification information of the neighboring cell and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number, and corresponding channel occupation information.
  • the above-mentioned channel occupation information request message or the Uu interface message containing the channel occupation information may be a Uu interface message specified in the standard, or may be a newly added Uu interface message.
  • the channel occupation information sent by the first target base station is obtained through the Uu interface.
  • the base station directly receives a Channel Occupation Indication message including channel occupation information sent by the first target base station through the Uu interface.
  • the base station first sends a Channel Occupation Request message to the first target base station through the Uu interface, and then receives a Channel Occupation Response message including the channel occupation information sent by the first target base station.
  • the base station first sends a channel Occupation Request message to the first target base station through the Uu interface, and then receives a channel Occupation Response message and channel that is sent by the first target base station and includes the channel occupation information. Occupation Update message.
  • the foregoing Channel Occupation Indication message, Channel Occupation Response message, or Channel Occupation Update message may be included in a broadcast message sent by the Uu interface of the first target base station, for example, the preamble preamble sent by the first target base station before each data is sent.
  • the channel Occupation Indication message, the Channel Occupation Response message, or the Channel Occupation Update message includes a channel occupation information field, and is used by the first target base station to transmit corresponding channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • Manner 4 Obtain channel occupation information of the first target base station forwarded by the UE through the Uu interface.
  • the base station may directly receive the Uu interface message that is sent by the first target base station and is forwarded by the UE, and may also receive the channel occupation information request message to the first target base station, and then receive the first target base station after the UE sends the channel occupation information request message to the first target base station.
  • the channel occupation information request message may include one or more network identification information and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number of the neighboring cell.
  • the S1 message sent by the first target base station may include one or more network identification information of the neighboring cell and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number, and corresponding channel occupation information.
  • the above-mentioned channel occupation information request message or the Uu interface message containing the channel occupation information may be a Uu interface message specified in the standard, or may be a newly added Uu interface message.
  • the channel occupation information of the first target base station forwarded by the UE is obtained through the Uu interface.
  • the first target base station first sends a Channel Occupation Indication message including channel occupation information to the UE through the Uu interface, and then the base station receives the Channel Occupation Indication message forwarded by the UE.
  • the base station first sends a Channel Occupation Request message to the UE through the Uu interface, and forwards the Channel Occupation Request message to the first target base station by the UE, and then receives the channel occupancy information that the first target base station forwards through the UE on the Uu interface.
  • Channel Occupation Response message When the base station first sends a Channel Occupation Request message to the UE through the Uu interface, and forwards the Channel Occupation Request message to the first target base station by the UE, and then receives the channel occupancy information that the first target base station forwards through the UE on the Uu interface.
  • Channel Occupation Response message Channel Occupation Response message.
  • the base station first sends a Channel Occupation Request message to the UE through the Uu interface, and the UE forwards the Channel Occupation Request message to the first target base station to configure a channel occupation information transmission period for the first target base station, and then receives the first target.
  • the base station transmits a Channel Occupation Response message and a Channel Occupation Update message including channel occupation information forwarded by the UE on the Uu interface.
  • the channel Occupation Indication message, the Channel Occupation Response message, or the Channel Occupation Update message includes a channel occupation information field for transmitting, by the first target base station, corresponding channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • an embodiment of the present disclosure shown in FIG. 14 provides an information acquiring method, which is applied to a user equipment UE and includes the following step 201.
  • Step 201 Acquire channel occupation information of the second target base station.
  • the second target base station refers to a base station around the execution subject UE in the embodiment of the present disclosure shown in FIG. 14.
  • the base stations around the UE may be one or more.
  • the information acquiring method of the embodiment of the present disclosure shown in FIG. 14 can obtain the channel occupation information of the neighboring base station by using the obtained channel occupancy information of the neighboring base station when performing cell selection/reselection.
  • the UE selects a channel to occupy an idle base station, improves the chance of the UE transmitting and receiving signals, and avoids a large delay.
  • Manner 1 Obtain channel occupation information of the second target base station by reading a broadcast message of the second target base station.
  • the UE may directly receive the broadcast message that includes the channel occupation information sent by the second target base station, to obtain the channel occupation information of the second target base station.
  • the broadcast message may include at least network identification information and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and carrier frequency information of the second target base station, and corresponding channel occupation information.
  • cell identification information such as PLMN-ID, NHN-ID, ECGI
  • the UE directly receives the SIBx message including the channel occupation information sent by the second target base station.
  • the channel occupancy information field of the local cell may be included in the SIBx message, and the channel occupation information field of the local cell is used by the second target base station to transmit corresponding channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • Manner 2 Obtain channel occupation information of the second target base station by reading a broadcast message of the camping base station.
  • the camping base station refers to the base station where the UE currently camps, and the UE can directly receive the broadcast message including the channel occupation information sent by the camping base station to obtain the channel occupation information of the second target base station.
  • the broadcast message includes at least network identity information of the camping base station and cell identity information (such as PLMN-ID, NHN-ID, ECGI) and a carrier frequency number, and corresponding channel occupancy information.
  • the broadcast message further includes network identification information and cell identification information (such as PLMN-ID, NHN-ID, ECGI) and carrier frequency number of the second target base station, and corresponding channel occupation information.
  • the UE directly receives an SIBx message including channel occupancy information transmitted by its currently camping base station.
  • the SIBx message includes at least a channel occupation information field of the current cell and a channel occupation information field of the neighboring cell, and is used for transmitting channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • Manner 3 Obtain channel occupation information of the second target base station by reading a preamble message of the second target base station.
  • the UE may directly receive the preamble message including the channel occupation information sent by the second target base station to obtain channel occupation information of the second target base station.
  • the preamble message includes channel occupancy information of the cell.
  • the channel occupation information may include channel occupation information of a plurality of carrier frequencies.
  • the UE directly receives a preamble message including channel occupation information sent by the second target base station.
  • the preamble message may include a channel occupation information field of the current cell, where the second target base station transmits corresponding channel occupation information.
  • the channel occupation information field has, for example, but not limited to, the coding format shown in Table 1 above, and details are not described herein again.
  • an embodiment of the present disclosure shown in FIG. 18 provides a cell handover method, which is applied to a base station and includes the following steps 301 to 303.
  • Step 301 Acquire channel occupation information of at least one first target base station.
  • Step 302 Receive a first measurement value related to the received reference signal of the at least one first target base station reported by the user equipment.
  • Step 303 Determine, according to the channel occupation information and the first measurement value, a handover target base station of the user equipment.
  • the cell handover method of the embodiment of the present disclosure shown in FIG. 18, by using the acquired channel occupancy information of the neighboring base station to perform handover evaluation on the UE, can ensure that the UE switches to a channel that occupies an idle base station, and improves the UE to transmit and receive signals. Opportunity to avoid large delays.
  • the first measurement value related to the received reference signal in step 302 is, for example, a reference signal received power measurement value or a reference signal received quality measurement value, which is not limited by the disclosure.
  • determining the handover target base station of the UE according to the channel occupation information and the first measurement value may be implemented in at least two ways:
  • the base station first selects a handover target base station candidate set that constitutes a UE by the first target base station whose first measurement value is greater than or equal to the first preset threshold, and then selects a channel from the handover target base station candidate set according to the acquired channel occupation information.
  • the first target base station occupying the most idle is used as the handover target base station of the UE.
  • the first preset threshold is preset. If the first measurement value of a certain first target base station is greater than or equal to the first preset threshold, it indicates that the signal of the first target base station is superior, and can be used as a candidate handover target base station.
  • the base station first determines, according to the channel occupancy information and the first measurement value, a handover decision reference indicator value of each first target base station, and then selects the first target base station whose handover decision reference index value is the largest as the handover target of the UE. Base station.
  • the handover decision reference indicator value is used to indicate the switchability of the corresponding first target base station. Specifically, the larger the handover decision reference index value of the first target base station is, the higher the switchability is, that is, after the UE switches to the first target base station, the transceiver signal is better.
  • the method for determining the handover decision reference indicator value of the corresponding first target base station according to the channel occupation information and the first measurement value is, for example, if the target decision base station A is used, then the handover decision reference indicator value of A is the channel occupancy information of A.
  • the first preset value is added, and the first measured value of A is multiplied by the second preset value.
  • the first preset value and the second preset value are preset according to actual conditions, and the channel occupancy information and the first measurement value are combined to perform handover evaluation on the first target base station.
  • an embodiment of the present disclosure shown in FIG. 19 provides a method of cell selection or reselection, the method of cell selection or reselection is applied to a user equipment and includes the following steps 401 to 403.
  • Step 401 Acquire channel occupation information of at least one second target base station.
  • Step 402 Acquire a second measurement value related to the received reference signal of the at least one second target base station.
  • Step 403 Determine, according to the channel occupation information and the second measurement value, a resident target base station of the user equipment.
  • the cell selection or reselection method of the embodiment of the present disclosure shown in FIG. 19 can ensure that the UE selects a base station that occupies an idle channel and improves the UE by performing cell selection/reselection by using the acquired channel occupancy information of the surrounding base station.
  • the opportunity to send and receive signals avoids large delays.
  • step 401 For the method for obtaining the channel occupation information in step 401, reference may be made to the embodiment shown in FIG. 14 , and details are not described herein again.
  • the second measurement value related to the received reference signal in step 402 is, for example, a reference signal received power measurement value or a reference signal received quality measurement value, which is not limited by the disclosure.
  • determining, according to the channel occupancy information and the second measurement value, that the camping target base station of the UE can be implemented in at least two ways:
  • the UE first selects a second target base station whose second measurement value is greater than or equal to the second preset threshold, and forms a camping target base station candidate set of the UE, and then, according to the acquired channel occupation information, from the resident target base station candidate set.
  • the second target base station occupying the most idle channel is selected as the camping target base station of the UE.
  • the second preset threshold is preset. Moreover, if the second measurement value of a second target base station is greater than or equal to the second preset threshold, it indicates that the signal of the second target base station is superior, and can be used as a candidate resident target base station.
  • the UE first determines, according to the channel occupancy information and the second measurement value, a selection or reselection decision reference indicator value of each second target base station, and then selects the second target with the largest value of the selection or reselection decision reference index.
  • the base station acts as a camping target base station for the UE.
  • the selection or reselection decision reference indicator value is used to indicate the selectivity of the corresponding second target base station. Specifically, the greater the selection or reselection decision reference index value of the second target base station, the higher the selectability is, that is, after the UE switches to the second target base station, the transceiver signal is better.
  • the method for determining the selection or reselection decision reference index value of the corresponding second target base station according to the channel occupancy information and the second measurement value is, for example, if the second target base station B is used, then the selection or reselection decision reference index value of B is The channel occupancy information of B is multiplied by a third preset value, and the second measurement value of B is multiplied by a fourth preset value.
  • the third preset value and the fourth preset value are preset according to actual conditions to combine the channel occupation information and the second measurement value to perform selection or reselection evaluation on the second target base station.
  • an embodiment of the present disclosure shown in FIG. 20 provides an information acquiring apparatus 5, which is applied to a base station and includes a first acquiring module 51, where the first acquiring module 51 is configured to acquire a first target base station. Channel occupancy information.
  • the information acquiring apparatus of the embodiment of the present disclosure can obtain the channel occupation information of the first target base station, and enable the base station to use the acquired channel occupation information of the neighboring base station to ensure that the UE switches to one channel when performing handover evaluation on the UE. Occupy idle base stations, improve the opportunity for the UE to send and receive signals, and avoid large delays.
  • the first obtaining module 51 is specifically configured to: acquire the first mesh by using an X2 interface. Channel occupancy information sent by the target base station.
  • the first acquiring module 51 is specifically configured to: acquire channel occupation information sent by the first target base station by using an S1 interface.
  • the first acquiring module 51 is specifically configured to: acquire channel occupation information sent by the first target base station by using a Uu interface.
  • the first acquiring module 51 is specifically configured to: acquire, by using a Uu interface, channel occupation information of the first target base station that is forwarded by the user equipment.
  • an embodiment of the present disclosure shown in FIG. 21 further provides an information acquiring apparatus 6 that is applied to a user equipment and includes a second acquiring module 61, and the second obtaining module 61 is configured to acquire a second target. Channel occupancy information of the base station.
  • the information acquiring apparatus of the embodiment of the present disclosure can obtain the channel occupation information of the second target base station, and enable the UE to use the acquired channel occupation information of the surrounding base station to ensure that the UE selects a channel when performing cell selection/reselection. Occupy idle base stations, improve the opportunity for the UE to send and receive signals, and avoid large delays.
  • the second obtaining module 61 is specifically configured to: acquire channel occupying information of the second target base station by reading a broadcast message of the second target base station.
  • the second obtaining module 61 is specifically configured to: acquire channel occupation information of the second target base station by reading a broadcast message of the camping base station.
  • the second acquiring module 61 is specifically configured to: acquire channel occupying information of the second target base station by reading a preamble message of the second target base station.
  • an embodiment of the present disclosure shown in FIG. 22 further provides a cell switching apparatus 7 that is applied to a base station and includes: a third acquiring module 71, configured to acquire at least one first target base station. Channel occupant information; the receiving module 72 is configured to receive a first measurement value related to the received reference signal of the at least one first target base station reported by the user equipment UE, and a first determining module 73, configured to use the channel according to the channel The information and the first measurement value determine a handover target base station of the user equipment.
  • the cell switching apparatus of the embodiment of the present disclosure can perform the handover evaluation on the UE by using the obtained channel occupancy information of the neighboring base station, so that the UE can be switched to a channel that occupies an idle base station, thereby improving the chance of the UE transmitting and receiving signals, and avoiding a large time. Delay.
  • the first determining module 73 includes: a first selecting unit 731, configured to select, by the first target base station that the first measurement value is greater than or equal to the first preset threshold, to form a handover target base station candidate of the user equipment.
  • the second selection unit 732 is configured to select, according to the channel occupation information, a first target base station that is the most idle channel from the handover target base station candidate set as the handover target base station of the user equipment.
  • the first determining module 73 includes: a first determining unit 733, configured to determine, according to the channel occupancy information and the first measurement value, a handover decision reference indicator value of each first target base station;
  • the selecting unit 734 is configured to select, as the handover target base station of the user equipment, the first target base station whose handover decision reference index value is the largest.
  • the first measurement value is a reference signal received power measurement value or a reference signal received quality measurement value.
  • the embodiment of the present disclosure shown in FIG. 23 further provides a device 8 for cell selection or reselection, where the device 8 for selecting or reselecting a cell is applied to a user equipment and includes: a fourth obtaining module 81, configured to: Obtaining channel occupancy information of the at least one second target base station; the fifth obtaining module 82 is configured to acquire a second measurement value related to the received reference signal of the at least one second target base station; and a second determining module 83, configured to: Determining a resident target base station of the user equipment according to the channel occupation information and the second measurement value.
  • a fourth obtaining module 81 configured to: Obtaining channel occupancy information of the at least one second target base station
  • the fifth obtaining module 82 is configured to acquire a second measurement value related to the received reference signal of the at least one second target base station
  • a second determining module 83 configured to: Determining a resident target base station of the user equipment according to the channel occupation information and the second measurement value.
  • the device for cell selection or reselection of the embodiment of the present disclosure can ensure that the UE selects a base station that occupies an idle channel and improves the opportunity for the UE to send and receive signals by performing cell selection/reselection by using the obtained channel occupancy information of the surrounding base station. Avoid large delays.
  • the second determining module 83 includes: a fourth selecting unit 831, configured to select, by the second target base station that the second measured value is greater than or equal to the second preset threshold, to form a resident target base station of the user equipment. And a fifth selection unit 832, configured to select, according to the channel occupancy information, a second target base station that is the most idle channel from the camping target base station candidate set as a resident target base station of the user equipment.
  • the second determining module 83 includes: a second determining unit 833, configured to determine, according to the channel occupation information and the second measurement value, a selection or reselection decision reference index value of each second target base station
  • the sixth selecting unit 834 is configured to select the second target base station whose selection or reselection decision reference index value is the largest as the resident target base station of the user equipment.
  • the second measurement value is a reference signal received power measurement value or a reference signal received quality measurement value.
  • an embodiment of the present disclosure shown in FIG. 24 provides a base station 9 including a first memory 91, a first transceiver 92, and a first processor 93.
  • the first memory 91 is used to store one or more sets of software programs.
  • the first processor 93 is connected to the first memory 91 and the first transceiver 92, and is configured to: control the first transceiver 92 to acquire at least one first target base station by running a software program in the first memory 91.
  • an embodiment of the present disclosure shown in FIG. 25 further provides a user equipment 11 including a second memory 111, a second transceiver 112, and a second processor 113.
  • the second memory 111 is for storing one or more sets of software programs.
  • the second processor 113 is connected to the second memory 111 and the second transceiver 112, and is configured to: control the second transceiver 112 to acquire at least one second target base station by running a software program in the second memory 111. Obtaining channel occupancy information and acquiring a second measurement value related to the received reference signal of the at least one second target base station, and determining a resident target base station of the user equipment according to the channel occupancy information and the second measurement value .
  • Embodiments of the present disclosure provide a non-volatile storage medium on which program instructions are stored.
  • the processor acquires channel occupancy information of the at least one first target base station, and receives a first measurement value related to the received reference signal of the at least one first target base station reported by the user equipment, and Determining, by the channel occupation information and the first measurement value, a handover target base station of the user equipment.
  • Embodiments of the present disclosure also provide a non-volatile storage medium on which program instructions are stored.
  • the processor acquires channel occupancy information of the at least one second target base station and acquires a second measurement value related to the received reference signal of the at least one second target base station, and according to the channel The occupancy information and the second measurement value determine a resident target base station of the user equipment.

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

Abstract

La présente invention concerne un procédé et un dispositif d'acquisition d'informations, un procédé et un dispositif de transfert de cellule et un procédé et un dispositif de sélection ou de resélection de cellule. Le procédé de transfert de cellule est applicable à une station de base et consiste : à acquérir des informations d'occupation de canal d'au moins une première station de base cible ; à recevoir une première valeur mesurée desdites premières stations de base cibles, associée à la réception d'un signal de référence, rapportée par un équipement utilisateur ; et en fonction des informations d'occupation de canal et de la première valeur mesurée, à déterminer une station de base cible de transfert pour l'équipement utilisateur.
PCT/CN2017/104160 2016-09-30 2017-09-29 Procédé et dispositif d'acquisition d'informations, procédé et dispositif de transfert de cellule et procédé et dispositif de sélection ou de resélection de cellule WO2018059524A1 (fr)

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