WO2016041496A1 - Procédé et dispositif de construction dynamique d'une cellule virtuelle - Google Patents

Procédé et dispositif de construction dynamique d'une cellule virtuelle Download PDF

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Publication number
WO2016041496A1
WO2016041496A1 PCT/CN2015/089744 CN2015089744W WO2016041496A1 WO 2016041496 A1 WO2016041496 A1 WO 2016041496A1 CN 2015089744 W CN2015089744 W CN 2015089744W WO 2016041496 A1 WO2016041496 A1 WO 2016041496A1
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Prior art keywords
station
preset threshold
virtual cell
event
signal quality
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PCT/CN2015/089744
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English (en)
Chinese (zh)
Inventor
陈林
张芳
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中兴通讯股份有限公司
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Priority claimed from CN201510012995.8A external-priority patent/CN105828337A/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/548,769 priority Critical patent/US20180242211A1/en
Publication of WO2016041496A1 publication Critical patent/WO2016041496A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/13—Cell handover without a predetermined boundary, e.g. virtual cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • This paper relates to the field of mobile communications, and in particular to a method and apparatus for dynamically constructing a virtual cell.
  • each user's throughput is increased by 10 to 100 times, and the number of devices connected per user is 10 to 100 times.
  • Growth, battery life of low-power devices is extended by 10 times, end-to-end latency is reduced by 5 times, etc.
  • Ultra-Dense Networks is an important means to achieve the first two indicators of 5G.
  • the key technology of UDN is to enable a large number of nodes to coexist effectively in an isomorphic or heterogeneous manner in a dense range. Due to the ultra-dense deployment, the inter-cell interference is very serious, and the capacity of each area cannot be linearly increased synchronously with the number of nodes in the area. Moreover, when the user equipment (UE, User Equipment) moves between cells, a large number of handovers are brought about, and the ultra-dense deployment poses a severe challenge to the mobile signaling load and the mobile robustness.
  • UE User Equipment
  • a virtual cell such as a soft cell and a Phantom Cell.
  • the soft cell or the phantom cell is composed of the micro cell with the best communication quality among the neighboring cells of the macro cell and the macro cell, and the UE only needs to replace the micro cell in the soft cell during the mobile process, and does not need to switch between each micro cell. .
  • a virtual cell cannot be implemented if the UE is not within the coverage of the macro cell.
  • the technical problem to be solved by the present invention is to provide a method and apparatus for dynamically constructing a virtual cell, which can implement a virtual cell in a coverage of a macro cell.
  • a method for dynamically constructing a virtual cell comprising:
  • the main control station sends an event to the user equipment (UE) that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold, and receives the virtual cell from the UE. a measurement report of an event in which the signal quality of the neighboring cell is greater than the first preset threshold or the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold;
  • UE user equipment
  • the main control station increases the neighboring cell signal quality of the virtual cell to be greater than the first preset threshold or the cell corresponding to the cell identifier carried in the measurement report of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the master station and the slave station form a first virtual cell.
  • control station carries the cell identifier carried in the measurement report of the event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold.
  • the steps of adding corresponding cells to the slave site include:
  • the master station generates a first virtual cell key according to a first current value of the first S counter and a key from the core network;
  • the master station receives a first RRC connection reconfiguration complete message from the UE and a first increase command message from the one of the slave stations;
  • the first increase request message includes a first virtual cell key and a list of encryption algorithms; the first RRC connection reconfiguration message includes a first encryption algorithm and a first S counter in the first increase command message. a first current value; the first increase command message includes the first encryption algorithm.
  • the master station carries the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold.
  • the step of adding the cell corresponding to the cell identifier to the slave station further includes:
  • the master station sends a second increase request message to other slave stations of the first virtual cell; the master station receives a second increase command message from other slave stations of the first virtual cell;
  • the second increase request message includes the first virtual cell key and the first encryption algorithm.
  • the first increase request message or the second increase request message further includes UE capability information, a first current value of the first S counter, a header compression algorithm, and a UE identifier.
  • the first RRC Connection Reconfiguration message further includes the header compression algorithm.
  • the first virtual cell key is generated by the master station according to a key from a core network and a first current value of the first S counter.
  • the method further includes:
  • the first path switching request message includes a first virtual cell identifier, a master station identifier in the first virtual cell, and a slave station identifier in the first virtual cell.
  • the method further includes:
  • the master station sends an event to the UE that the signal quality of the station is less than the third preset threshold or the signal level of the slave station is less than the fourth preset threshold;
  • the master station receives a measurement report of an event that the signal quality of the slave station of the UE is less than a third preset threshold or an event of the slave station whose signal level is less than a fourth preset threshold, and the signal of the slave station is received
  • the event whose quality is less than the third preset threshold or the slave station identifier corresponding to the event report of the event whose signal level is less than the fourth preset threshold is deleted from the site;
  • the master station performs key update on the slave stations of the UE and the second virtual cell;
  • the master station and the first virtual cell in the first virtual cell form a second virtual cell except the slave station other than the deleted station.
  • the master station associates the event that the signal quality of the slave station is smaller than the third preset threshold or the slave station identifier of the event that is smaller than the fourth preset threshold.
  • the steps to remove from the site include:
  • the step of the master station performing key update on the slave stations of the UE and the second virtual cell includes:
  • the master station changes a first current value of the first S counter to obtain a second current value of the first S counter, and generates a second virtual cell key according to the second current value of the first S counter;
  • the master station sends a key update request message to the slave station of the second virtual cell, and sends a second RRC connection reconfiguration message to the UE;
  • the key update request message includes the second virtual cell key, and the second RRC connection reconfiguration message includes a second current value of the first S counter.
  • the step of the master station changing the first current value of the first S counter to obtain the second current value of the first S counter includes:
  • the master station adds 1 to the first current value of the first S counter to obtain a second current value of the first S counter.
  • the method further includes:
  • the signal quality of the main control station sent by the main control station to the UE is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh
  • the main control station receives the signal quality of the main control station from the UE is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station
  • the difference between the difference or the signal level of the master station is smaller than the difference between the signal level of the neighboring station of the master station and the second preset offset value, and the signal quality to the master station is less than the fifth.
  • the signal level of the preset threshold or the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold.
  • the signal quality of the master station is smaller than the difference between the signal quality of the neighboring station and the first preset offset value or the signal level of the master station is smaller than the signal level of the neighboring station of the master station and
  • the target master station corresponding to the cell identifier in the measurement report of the event of the difference between the second preset offset values sends a handover request message; the master station receives the handover command message from the target master station, U E transmitting a third RRC connection reconfiguration message;
  • the handover request message includes a key from a core network, a current value of a next hop chain counter NCC, and a list of encryption algorithms, where the third RRC connection reconfiguration message includes a second encryption algorithm, a current state of the second S counter. The value and the current value of the NCC.
  • the third RRC connection reconfiguration message further includes a header compression algorithm.
  • the method further includes:
  • the master station generates a third virtual cell key according to the handover request message from the other master station, and sends a delete request message to the slave station of the other master station;
  • the master control station receives a third increase command message from the slave station of the other master station, generates a third encryption key according to the third increase command message, and sends a handover command message to the other master station. ;
  • the slave station of the master control station and the other master station constitutes a third virtual cell; the third increase request message includes a second encryption algorithm and a third virtual cell key.
  • the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold includes an A4 event.
  • the event that the signal quality of the slave station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold includes an A2 event.
  • the signal quality of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station is greater than the seventh preset threshold or The signal level of the neighboring area of the main control station is greater than the event of the eighth preset threshold; or the signal quality of the main control station is smaller than the difference between the signal quality of the adjacent area of the main control station and the first preset deviation value or the main control
  • the event that the signal level of the station is less than the difference between the neighboring signal level of the master station and the second preset offset value includes an A5 event.
  • a method for dynamically constructing a virtual cell comprising:
  • the user equipment UE selects a serving cell, uses the selected serving cell as a master control station, and establishes a service on the master control station;
  • the UE determines that there is an event in the neighboring area of the active control station that meets the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold, Sending, to the master control station, a measurement report of an event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold;
  • the master station receives, by the UE, a first RRC connection reconfiguration message from the master station, generating a first encryption key according to the first RRC connection reconfiguration message, and performing reconstruction using the generated first encryption key, to the The master station sends a first RRC connection reconfiguration complete message and initiates a random access procedure to the secondary station.
  • the measurement report of the event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold includes one or more satisfied virtual cells.
  • the event that the neighboring cell signal quality is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the cell identifier of the event of the second preset threshold.
  • the step of generating, by the UE, the first encryption key according to the first RRC connection reconfiguration message include:
  • the UE generates a first virtual cell key according to a first current value of the first S counter in the first RRC connection reconfiguration message and a key from the core network, according to the generated first virtual cell key and the The physical address of the UE generates the first encryption key by using a first encryption algorithm in the first RRC connection reconfiguration message.
  • the method further includes:
  • the UE measures the slave station in the first virtual cell; when the UE determines that there is an event in the slave station of the first virtual cell that satisfies the signal quality of the slave station is less than the third preset threshold or from the site When the signal level is smaller than the cell of the event of the fourth preset threshold, the event that the signal quality of the slave station is less than the third preset threshold or the signal level of the slave station is less than the fourth preset threshold is sent to the master station. Measurement report;
  • the UE Receiving, by the UE, a second RRC connection reconfiguration message from the master station, generating a second encryption key according to the second RRC connection reconfiguration message, and performing reconstruction using the generated second encryption key;
  • the UE sends a second RRC connection reconfiguration complete message to the master station.
  • the step of the UE generating the second encryption key according to the second RRC connection reconfiguration message includes:
  • the UE generates a second virtual cell key according to the second current value of the first S counter in the second RRC connection reconfiguration message and the key from the core network, according to the generated second virtual cell key and the The physical address of the UE generates the second encryption key by using the first encryption algorithm.
  • the UE receives the signal quality of the main control station of the autonomous control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station An event that is greater than the seventh preset threshold or the neighboring area signal level of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the adjacent station signal quality of the main control station and the first preset offset value.
  • the method further includes: when the difference between the difference or the signal level of the master station is less than the difference between the signal level of the neighboring area of the master station and the second preset offset value, the method further includes:
  • the UE performs measurement on a neighboring area of the master control station
  • the signal quality of the master station is small in the neighboring area of the master station
  • the signal level of the fifth preset threshold or the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the adjacent area of the main control station is greater than the eighth The event of the preset threshold; or, the signal quality of the master station is smaller than the difference between the signal quality of the neighboring station and the first preset offset value or the signal level of the master station is smaller than the neighboring area of the master station
  • the signal quality of the master station is less than the fifth preset threshold or the signal level of the master station is less than the sixth a preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or
  • the target master station sends a third RRC connection reconfiguration complete message and initiates a random access procedure to the secondary station.
  • the step of the UE generating a third encryption key according to the third RRC connection reconfiguration message includes:
  • the UE generates a third virtual cell key according to the current value of the second S counter in the third RRC connection reconfiguration message from the core network and the current value of the next hop chain counter NCC, according to the generated
  • the third virtual cell key and the physical address of the UE generate a third encryption key by using the second encryption algorithm.
  • the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold includes an A4 event.
  • the event that the signal quality of the slave station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold includes an A2 event.
  • the signal quality of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station is greater than the seventh preset threshold or The signal level of the neighboring area of the main control station is greater than the event of the eighth preset threshold; or the signal quality of the main control station is smaller than the difference between the signal quality of the adjacent area of the main control station and the first preset deviation value or the main control The signal level of the station is smaller than the difference between the adjacent station signal level of the master station and the second preset offset value. Events include the A5 event.
  • a method for dynamically constructing a virtual cell comprising:
  • the first increase command message includes a first encryption algorithm.
  • the step of the slave station generating the first encryption key according to the first increase request message includes:
  • the step of generating, by the secondary station, the first encryption key according to the second increase request message includes:
  • the first increase command message or the second increase command message further includes: a first current value of the first S counter in the first increase request message or the second increase request message.
  • the method further includes:
  • the slave station sends an increase completion message to the master station.
  • the method further includes:
  • the slave station releases the corresponding resource and sends a delete confirmation message to the master station.
  • the method further includes:
  • the slave station generates a second encryption key according to the third increase request message, and uses the generated The second encryption key is configured and sends a third increase command message to the target hosting station.
  • the step of generating a third encryption key according to the third increase request message includes:
  • a device for dynamically constructing a virtual cell is located at a side of a main control station, and includes a first sending module, a first receiving module, and an adding module, where:
  • the first sending module is configured to: send, to the user equipment UE, an event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold;
  • the first receiving module is configured to: receive a measurement report that the event that the neighboring cell signal quality of the virtual cell of the UE is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold;
  • the adding module is configured to: the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the cell identifier of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold The cell is added to the slave site;
  • the master station and the slave station form a first virtual cell.
  • the first sending module is further configured to: send, to the UE, an event that the signal quality of the station is less than a third preset threshold or an event that the signal level of the slave station is less than a fourth preset threshold;
  • the first receiving module is further configured to: receive an event from the UE that the signal quality of the slave station is less than the third preset threshold or a measurement report of the event that the signal level of the slave station is less than the fourth preset threshold;
  • the device also includes a delete module, wherein:
  • the deleting module is configured to: the event corresponding to the slave station identifier of the event that the signal quality of the slave station is less than the third preset threshold or the event report of the event whose signal level of the station is less than the fourth preset threshold Site deletion; performing key update on the slave stations of the UE and the second virtual cell;
  • the second virtual cell is formed from the site.
  • the first sending module is further configured to: send, to the UE, that a signal quality of the main control station is less than a fifth preset threshold or a signal level of the main control station is less than a sixth preset threshold, and the master control
  • the signal quality of the neighboring area of the station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the adjacent area signal quality of the main control station and the The difference between a preset deviation value or the event that the signal level of the master station is smaller than the difference between the adjacent station signal level and the second preset deviation value of the master station;
  • the signal quality to the master station is less than The signal level of the fifth preset threshold or the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth pre-predetermined
  • the first receiving module is further configured to: receive a signal quality of the main control station from the UE is less than a fifth preset threshold or a signal level of the main control station is less than a sixth preset threshold, and a neighbor of the master station
  • the signal quality of the area is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the signal quality of the adjacent area of the main control station and the first preset a measurement report of the difference between the deviation values or the event that the signal level of the master station is smaller than the difference between the adjacent station signal level and the second preset deviation value of the master station; receiving the information from the target master station Switch command message;
  • the handover request message includes a key from a core network, a current value of a next hop chain counter NCC, and a list of encryption algorithms, where the third RRC connection reconfiguration message includes a second encryption algorithm, a current state of the second S counter. The value and the current value of the NCC.
  • the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold includes an A4 event.
  • the event that the signal quality of the slave station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold includes an A2 event.
  • the signal quality of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station is greater than the seventh preset threshold.
  • the event that the signal level of the control station is less than the difference between the adjacent zone signal level of the master station and the second preset offset value includes an A5 event.
  • An apparatus for dynamically constructing a virtual cell is located at a UE side, and includes a selection module, a second receiving module, and a second sending module, where:
  • the selecting module is configured to: select a serving cell, use the selected serving cell as a master control station, and establish a service on the master control site;
  • the second receiving module is configured to: receive an event that the neighboring cell signal quality of the virtual cell from the master control site is greater than the first preset threshold, or an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold, The neighboring area of the control station performs measurement; receives a first RRC connection reconfiguration message from the master station, generates a first encryption key according to the first RRC connection reconfiguration message, and uses the generated first encryption key to perform reconstruction;
  • the second sending module is configured to: determine that an event in the neighboring area of the active control site that meets the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold, or that the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event signal of the neighbor cell of the virtual cell is greater than the second preset threshold The master station sends a first RRC connection reconfiguration complete message and initiates a random access procedure to the secondary station.
  • the second receiving module is further configured to: receive an event that the signal quality of the slave station of the autonomous control station is less than the third preset threshold or an event that the signal level of the slave station is less than the fourth preset threshold; Performing measurement on the slave station in the first virtual cell; receiving a second RRC connection reconfiguration message from the master station, generating a second encryption key according to the second RRC connection reconfiguration message, using the generated Second encryption key for reconstruction;
  • the second sending module is further configured to:
  • the master station Determining, in the slave station of the first virtual cell, that the event that the signal quality of the station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold is present, The master station sends a measurement report that the event that the signal quality of the station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold; sending the second RRC connection weight to the master station With completion message.
  • the second receiving module is further configured to: the signal quality of the main control station that receives the self-control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and The signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the signal quality of the adjacent area of the main control station.
  • the difference between the first preset deviation value or the difference between the signal level of the master station and the difference between the adjacent station signal level and the second preset deviation value of the master station, and the neighbor of the master station The area performs measurement; receives a third RRC connection reconfiguration message from the master station, generates a third encryption key according to the third RRC connection reconfiguration message, and performs reconstruction using the generated third encryption key;
  • the second sending module is further configured to:
  • the signal quality of the main control station in the neighboring area of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station
  • the difference between the difference or the signal level of the master station is smaller than the event of the difference between the neighboring area signal level of the master station and the second preset offset value, the master station is sent to the master station.
  • the signal quality is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station is greater than the seventh preset threshold or the adjacent station signal level of the main control station is greater than The event of the eighth preset threshold; or, the signal quality of the master station is smaller than the difference between the signal quality of the neighboring area of the master station and the first preset offset value or the signal level of the master station is smaller than that of the master station Neighbor signal level Second predetermined measurement report event of a difference between the offset value; sending a third master site to the target RRC connection reconfiguration complete message, and initiates a random access procedure from the site.
  • the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold includes an A4 event.
  • the event that the signal quality of the slave station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold includes an A2 event.
  • the signal quality of the primary control station is less than a fifth preset threshold or a signal of the primary control station.
  • the level is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or, the master station
  • the signal quality is less than the difference between the signal quality of the neighboring area of the master station and the first preset offset value or the signal level of the master station is less than the signal level between the neighboring area of the master station and the second preset offset value.
  • the difference event includes the A5 event.
  • a device for dynamically constructing a virtual cell is located at a slave station side, and includes a third receiving module and a third sending module, where:
  • the third receiving module is set to:
  • the third sending module is set to:
  • the third sending module is further configured to: after the random access procedure initiated by the UE is completed, send an increase completion message to the master control station.
  • the third receiving module is further configured to: receive a delete request message from the master control station;
  • the third sending module is further configured to: release the resource indicated by the deletion request message, and send a deletion confirmation message to the master control station.
  • the third receiving module is further configured to: receive a third increase request message from the target master station; generate a second encryption key according to the third increase request message, and use the generated second encryption key Configure
  • the third sending module is further configured to: send a third increase command message to the target master station.
  • the technical solution of the present invention includes: an event that the primary control station sends the neighboring cell signal quality of the virtual cell to be greater than the first preset threshold, or the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the neighboring cell signal quality of the virtual cell receiving the user equipment UE is greater than The event of the first preset threshold or the measurement report of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold; the event that the master station has the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the virtual cell
  • the cell corresponding to the cell identifier in the measurement report of the event in which the neighboring cell signal level is greater than the second preset threshold is added to the slave site one by one; wherein the master station and the slave station constitute the first virtual cell.
  • the serving cell selected by the UE may be any cell, and does not need to be a macro cell, and the master station will satisfy the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor of the virtual cell.
  • a cell in which an area signal level is greater than a second preset threshold is added as a slave station, thereby implementing a virtual cell.
  • FIG. 1 is a flowchart of a method for dynamically constructing a virtual cell applied to a UE according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for dynamically constructing a virtual cell applied to a master station according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for dynamically constructing a virtual cell from a station according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for increasing a slave station of a master control station according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for deleting a slave station of a master station according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a method for switching a master station according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a device (UE) for dynamically constructing a virtual cell according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a second apparatus (master station) for dynamically constructing a virtual cell according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of a third device (slave station) for dynamically constructing a virtual cell according to an embodiment of the present invention.
  • an embodiment of the present invention provides a method for dynamically constructing a virtual cell, including:
  • Step 100 The main control station sends an event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold, and receives the neighbor of the virtual cell from the UE.
  • the neighboring cell signal level is a ratio between the neighboring cell signal quality of the virtual cell and the neighbor cell transmit power of the virtual cell.
  • the master control station sends the neighboring cell signal quality of the virtual cell for measuring the neighboring cell of the master control station to the UE.
  • An event of a preset threshold or an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold.
  • Step 101 The cell corresponding to the cell identifier carried in the measurement report of the event in which the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the signal level of the neighboring cell of the virtual cell is greater than the second preset threshold
  • the addition is a slave site; wherein the master site and the slave site constitute a first virtual cell.
  • the main control station corresponds that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the cell identifier of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the step of adding the cell to the slave station includes: the master station generates the first virtual cell key according to the first current value of the first S counter and the key from the core network; and the quality of the neighboring cell signal of the virtual cell obtained by the master control station is greater than a preset threshold event or a cell corresponding to the cell identifier in the measurement report of the event in which the neighboring cell signal level of the virtual cell is greater than the second preset threshold, and the obtained cell is sent as a slave station to one of the slave stations.
  • the master station receives Generating a first encryption key according to the first increase command message from a first add command message of the slave station in the site, and sending a first radio resource control protocol (RRC) connection reconfiguration message to the UE;
  • RRC radio resource control protocol
  • the control station receives a first RRC connection reconfiguration complete message from the UE and a first increase command message from one of the secondary stations;
  • the first increase request message includes a first virtual cell key and a list of encryption algorithms; the first RRC connection reconfiguration message includes a first encryption algorithm in the first increase command message and a first current value of the first S counter; An add command message includes a first encryption algorithm.
  • the first increase request message may further include UE capability information, a first current value of the first S counter, a header compression algorithm, and a UE identifier.
  • the first RRC Connection Reconfiguration message may also include a header compression algorithm.
  • the main control station increases the neighboring cell signal quality of the virtual cell to be greater than the first preset threshold or the cell corresponding to the cell identifier carried in the measurement report of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the steps of the site can also include:
  • the master station sends a second increase request message to the other slave stations of the first virtual cell; the master station receives the second add command message from the other slave stations of the first virtual cell;
  • the second increase request message includes a first virtual cell key and a first encryption algorithm.
  • the first increase request message or the second increase request message further includes UE capability information, a first current value of the first S counter, a header compression algorithm, and a UE identifier;
  • the first RRC Connection Reconfiguration message further includes a header compression algorithm.
  • the method further includes:
  • the master control station sends a first path switch request message to the mobility management entity MME, and receives a first path switch confirmation message from the MME.
  • the first path switching request message includes a first virtual cell identifier, a master station identifier in the first virtual cell, and a slave station identifier in the first virtual cell.
  • the method also includes:
  • Step 102 The master station sends an event to the UE that the signal quality of the station is less than the third preset threshold or the signal level of the slave station is less than the fourth preset threshold.
  • the signal level of the slave station is the ratio between the signal quality of the slave station and the transmit power of the slave station.
  • the master station may periodically send an event to the UE that the signal quality of the station is less than the third preset threshold or the signal level of the slave station is less than the fourth preset threshold.
  • Step 103 The master station receives a measurement report that the signal quality of the slave station from the UE is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold, and the signal quality of the slave station is smaller than the first The event of the three preset thresholds or the slave station corresponding to the event identifier of the event whose signal level is less than the fourth preset threshold is deleted from the site corresponding to the site identifier.
  • the master station deletes from the site corresponding to the site identifier carried in the event report that the signal quality of the site is less than the third preset threshold or the measurement report of the event whose signal level is less than the fourth preset threshold.
  • the steps include:
  • the control station receives a delete confirmation message from the slave site.
  • Step 104 The master station performs key update on the UE and the slave station of the second virtual cell, where the master station and the first virtual cell form the second virtual cell except the deleted slave station.
  • the step of performing key update by the master station to the secondary station of the UE and the second virtual cell includes:
  • the master station changes the first current value of the first S counter to obtain a second current value of the first S counter, and generates a second virtual cell key according to the second current value of the first S counter;
  • the master station sends a key update request message to the slave station of the second virtual cell, and sends a second RRC connection reconfiguration message to the UE;
  • the key update request message includes a second virtual cell key, and the second RRC connection reconfiguration message includes a second current value of the first S counter.
  • the step of the master station changing the first current value of the first S counter to obtain the second current value of the first S counter includes:
  • the master station adds 1 to the first current value of the first S counter to obtain the second of the first S counter.
  • the former value The master station adds 1 to the first current value of the first S counter to obtain the second of the first S counter.
  • the method also includes:
  • Step 105 The signal quality of the main control station sent by the main control station to the UE is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh pre-predetermined Setting the threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or, the signal quality of the main control station is smaller than the difference between the signal quality of the adjacent station and the first preset deviation Or the event that the signal level of the master station is less than the difference between the adjacent station signal level of the master station and the second preset offset value.
  • the signal level of the master control station is the ratio between the signal quality of the master control station and the transmit power of the master control station; the signal level of the neighboring area of the master control station is the signal quality and the master of the neighboring area of the master control station. The ratio between the transmit powers of the neighboring cells of the control station.
  • Step 106 The main control station receives the signal quality of the main control station from the UE is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh.
  • the handover request message includes a key from the core network, a current value of a Next hop Chaining Counter (NCC), and a list of encryption algorithms.
  • NCC Next hop Chaining Counter
  • Step 107 The master control station receives a handover command message from the target master station, and sends a third RRC connection reconfiguration message to the UE.
  • the third RRC connection reconfiguration message includes a second encryption algorithm and a second S counter. Current value and current value of NCC.
  • the third RRC Connection Reconfiguration message may also include a header compression algorithm.
  • the method further includes:
  • the master station generates a third virtual cell key according to the handover request message from other master stations, and sends a delete request message to the slave stations of other master stations; the master station receives the delete confirmation of the slave station from other master stations. a message, sending a third increase request message to the slave station of the other master station; the master station receives the third increase command message from the slave station of the other master station, and generates a third encryption key according to the third increase command message, and Sending a handover command message to the other master stations; wherein the master station and the slave stations of the other master stations form a third virtual cell; the third increase request message includes a second encryption algorithm and a third virtual cell key.
  • an embodiment of the present invention provides a method for dynamically constructing a virtual cell, including:
  • Step 200 The UE selects a serving cell, uses the selected serving cell as a master control station, and establishes a service on the master control site.
  • Step 201 The UE receives an event that the signal quality of the neighboring cell of the virtual cell from the master station is greater than the first preset threshold, or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold, and the neighboring area of the master station Make measurements.
  • the UE may measure the reference signal received power (RSRP, Reference Signal Receiving Power) of the neighboring area of the master station.
  • the first preset threshold may be -90 dBm (dBm), the value may range from -140 dBm to -25 dBm; the fifth preset threshold may be -100 dBm, and the seventh preset threshold may be -90 dBm, fifth The preset threshold and the seventh preset threshold may range from -140 dBm to -25 dBm.
  • the UE may also measure the reference signal reception quality (RSRQ, Reference Signal Receiving Quality) of the neighboring area of the master station.
  • the second preset threshold may be -12 decibels (dB), the value range may be -20 dB to 0 dB; the sixth preset threshold may be -16 dB, and the eighth preset threshold may be -12 dB, the sixth preset threshold And the eighth pre-threshold can range from -20dB to 0dB.
  • Step 202 The UE determines that there is an event in the neighboring area of the active control station that meets the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold. And sending, to the master control station, a measurement report of an event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold.
  • the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event that the signal level of the neighboring cell of the virtual cell is greater than the second preset threshold includes one or more neighbors that satisfy the virtual cell.
  • Step 203 The UE receives the first RRC connection reconfiguration message from the autonomous control station, generates a first encryption key according to the first RRC connection reconfiguration message, and performs reconstruction using the generated first encryption key;
  • the station sends a first RRC Connection Reconfiguration Complete message and initiates a random access procedure to the secondary station.
  • the generating, by the UE, the first encryption key according to the first RRC connection reconfiguration message includes:
  • the UE generates a first virtual cell key according to the first current value of the first S counter in the first RRC connection reconfiguration message and the key from the core network, and adopts according to the generated first virtual cell key and the physical address of the UE.
  • the first encryption algorithm in the first RRC connection reconfiguration message generates a first encryption key.
  • the physical address of the UE may be an International Mobile Subscriber Identification Number (IMSI) of the UE.
  • IMSI International Mobile Subscriber Identification Number
  • the UE may perform reconstruction using the generated first encryption key in a Packet Data Convergence Protocol (PDCP) layer.
  • PDCP Packet Data Convergence Protocol
  • the slave station identifier may be a cell identifier corresponding to the slave station.
  • the method further includes:
  • Step 204 The UE performs measurement on the slave station in the first virtual cell.
  • the UE determines that the slave station in the first virtual cell has an event that satisfies the signal quality of the slave station is less than the third preset threshold, or the signal level of the slave station
  • the measurement report of the event that the signal quality of the station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold is sent to the master station.
  • the measurement result of the event that the signal quality of the station is less than the third preset threshold or the event that the signal level of the station is less than the fourth preset threshold includes one or more signals that satisfy the signal quality of the slave station is less than the third.
  • the event of the preset threshold or the signal level of the slave station is less than the fourth preset threshold.
  • the UE can measure the RSRP of the secondary station.
  • the third preset threshold may be -100 dBm, and the value range may be -140 dBm to -25 dBm.
  • the UE can also measure the RSRQ of the slave station. Then, the fourth preset threshold may be -16 dB, and the value range may be -20 dB to 0 dB.
  • Step 205 The UE receives the second RRC connection reconfiguration message from the autonomous control station, generates a second encryption key according to the second RRC connection reconfiguration message, and performs reconstruction using the generated second encryption key; the UE moves to the master control station. Sending a second RRC Connection Reconfiguration Complete message.
  • the generating, by the UE, the second encryption key according to the second RRC connection reconfiguration message includes:
  • the UE generates a second virtual cell key according to the second current value of the first S counter in the second RRC connection reconfiguration message and the key from the core network, according to the generated second virtual cell key and the physical address of the UE.
  • the first encryption algorithm generates a second encryption key.
  • the UE may perform reconstruction using the generated second virtual cell key at the PDCP layer.
  • the method further includes:
  • the UE measures the neighboring area of the main control station; the UE determines that the signal quality of the main control station in the neighboring area of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold. Moreover, the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the adjacent area of the main control station.
  • the signal quality of the main control station sending the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the main control The event that the neighboring area signal level of the station is greater than the eighth preset threshold; or the signal quality of the master station.
  • the difference between the signal quality of the neighboring area of the main control station and the first preset deviation value or the signal level of the main control station is smaller than the difference between the signal level of the adjacent area of the main control station and the second preset deviation value.
  • the UE receives the third RRC connection reconfiguration message from the master station, generates a third encryption key according to the third RRC connection reconfiguration message, and performs reconstruction using the generated third encryption key to the target
  • the master station sends a third RRC connection reconfiguration complete message and initiates a random access procedure to the secondary station.
  • the generating, by the UE, the third encryption key according to the third RRC connection reconfiguration message includes:
  • the UE generates a third virtual cell key according to the current value of the second S counter in the third RRC connection reconfiguration message from the core network and the current value of the NCC, according to the generated third virtual cell key and the physicality of the UE.
  • the address uses a second encryption algorithm to generate a third encryption key.
  • the UE may perform reconstruction using the generated third encryption key at the PDCP layer.
  • an embodiment of the present invention provides a method for dynamically constructing a virtual cell, including:
  • Step 300 Receive a first increase request message or a second increase request message from the master station from the site, generate a first encryption key according to the first increase request message or the second increase request message, and use the generated first encryption key. Performing a configuration; sending a first increase command message or a second increase command message from the site to the master control station; wherein the first increase command message includes the first encryption algorithm.
  • Generating the first encryption key according to the first increase request message includes:
  • Generating the first encryption key according to the second increase request message includes:
  • the first increase command message or the second increase command message further includes a first current value of the first S counter in the first increase request message or the second increase request message.
  • the method further includes:
  • An add completion message is sent from the site to the master site.
  • the method When receiving a delete request message from the site to the autonomous control site, the method further includes:
  • the method further includes:
  • Step 301 The slave station generates a second encryption key according to the third increase request message, performs configuration using the generated second encryption key, and sends a third increase command message to the target master station.
  • generating the third encryption key according to the third increase request message includes:
  • the event that the main control station receives the event that the neighboring cell signal quality of the virtual cell of the UE is greater than the first preset threshold or the neighbor cell signal level of the virtual cell is greater than the second preset threshold is measured.
  • the method of increasing the slave site of the master site includes:
  • Step 400 The master station generates a first virtual cell key according to a key from the core network and a first current value of the first S counter.
  • Step 401 The cell corresponding to the cell identifier carried in the measurement report of the event that the signal of the neighboring cell of the virtual cell is greater than the first preset threshold or the signal level of the neighboring cell of the virtual cell is greater than the second preset threshold.
  • the first increase request message is sent to one of the slave stations.
  • the first increase request message includes a first virtual cell key and a list of encryption algorithms.
  • the first increase request message may further include UE capability information, a first current value of the first S counter, a header compression algorithm, and a UE identity.
  • Step 402 The first encryption algorithm is selected for the UE in the encryption algorithm list of the first increase request message, and the first encryption algorithm is generated according to the first virtual cell key and the physical address of the UE in the first increase request message. An encryption key and a first increase command message is sent to the master station.
  • the first increase command message includes a first encryption algorithm.
  • the first increase command message may also include a first current value of the first S counter.
  • Step 403 The master station generates a first encryption key according to the first increase command message, and sends a first RRC connection reconfiguration message to the UE, and sends a second increase request message to the other slave stations.
  • the first RRC connection reconfiguration message includes a first encryption algorithm and a first current value of the first S counter.
  • the first RRC Connection Reconfiguration message may further include a header compression algorithm and a first current value of the first S counter.
  • the second increase request message includes a first encryption algorithm.
  • Step 404 The UE generates a first encryption key according to the first RRC connection reconfiguration message, and performs reconstruction using the generated first encryption key.
  • the UE sends a first RRC connection reconfiguration complete message to the master station, and sends the message to the secondary station. Sending an access request message;
  • the other slave station generates a first encryption key according to the second increase request message, uses the generated first encryption key for configuration, and the other slave station sends a second increase command message to the master station.
  • Step 405 Initiating a random access procedure from the site to the master control station, and after the random process is completed, sending an increase completion message from the site to the master control station.
  • Step 406 The master station sends a path switch request message to the MME.
  • the first path switching request message includes a first virtual cell identifier, a master station identifier in the first virtual cell, and a slave station identifier in the first virtual cell.
  • Step 407 The MME sends a path change confirmation message to the master station.
  • the master station deletes
  • the methods of the slave site of the master site include:
  • Step 500 The master station sends a delete request to the slave station corresponding to the cell identifier carried in the measurement report of the event that the signal quality of the slave station is less than the third preset threshold or the event signal of the station is less than the fourth preset threshold. Message.
  • Step 501 Release the corresponding resource from the site, and send a deletion confirmation message to the master control station.
  • Step 502 The master station adds 1 to the first current value of the first S counter to obtain a second current value, and generates a second virtual cell key according to the second current value and the key from the core network.
  • Step 503 The master station sends a key update request message to the other slave stations except the deleted slave station.
  • the key update request message includes a second virtual cell key.
  • the information may also include UE capability information, a second current value of the first S counter, a header compression algorithm, and a UE user identity.
  • Step 504 The other slave station generates a second encryption key according to the key update request message, performs configuration using the generated second encryption key, and sends a key update command message to the master control station.
  • generating the second encryption key according to the key update request message includes:
  • Step 505 The master station sends a second RRC connection reconfiguration message to the UE.
  • the second RRC connection reconfiguration message includes a second current value of the first S counter.
  • the second RRC Connection Reconfiguration message may also include a header compression algorithm.
  • Step 506 The UE generates a second encryption key according to the second RRC connection reconfiguration message, and performs reconstruction using the generated second encryption key.
  • the UE sends a second RRC connection reconfiguration complete message to the master station, and sends the message to the secondary station. Initiate a random access procedure.
  • the UE In this step, the UE generates the second encryption key according to the second RRC connection reconfiguration message, and the UE generates the second current value according to the first S counter in the second RRC connection reconfiguration message and the key generation from the core network.
  • the second virtual cell key generates a second encryption key according to the generated second virtual cell key and the physical address of the UE by using a first encryption algorithm.
  • the UE may perform reconstruction using the generated second virtual cell key at the PDCP layer.
  • Step 507 After the random access process is completed, the increase completion message is sent from the site to the master control station.
  • Step 508 The master station sends a second path switch request message to the MME.
  • the second path switching request message includes a second virtual cell identifier, a master station identifier in the second virtual cell, and a slave station identifier in the second virtual cell.
  • Step 509 The MME sends a second path switch confirmation message to the master control station.
  • the signal quality of the master station receiving the UE is less than the fifth preset threshold or the signal level of the master station is less than the sixth preset threshold, and the neighboring station is adjacent to the master station.
  • the signal quality of the area is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the signal quality of the neighboring area of the main control station and the first After switching the difference between the preset deviation values or the measurement report of the event that the signal level of the master station is smaller than the difference between the adjacent station signal level and the second preset deviation value of the master station, switching the master station Methods include:
  • Step 600 The signal quality of the main control station to the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold. Or the event that the signal level of the neighboring area of the master station is greater than the eighth preset threshold; or the signal quality of the master station is smaller than the difference between the signal quality of the neighboring station of the master station and the first preset offset value or the main
  • the handover request message includes a key from the core network, a current value of the NCC, and a list of encryption algorithms.
  • Step 601 The target master station selects a second encryption algorithm in the encryption algorithm list, creates a second S counter, and generates a third virtual cell density according to the current value of the second S counter, the key from the core network, and the current value of the NCC.
  • the key generates a third encryption key according to the generated third virtual cell key and the physical address of the UE by using a second encryption algorithm, and generates a UE context according to the handover request message.
  • Step 602 The target master station sends a delete request message to the slave station.
  • Step 603 Send a deletion confirmation message from the site to the target master station.
  • Step 604 The target master station sends a third increase request message to the slave station.
  • the third increase request message includes a second encryption algorithm and a third virtual cell key.
  • Step 605 The slave station generates a third encryption key according to the third increase request message, performs configuration using the generated third encryption key, and sends a third increase command message to the target master station.
  • generating an encryption key according to the third increase request message includes:
  • the third virtual cell key in the third increase request message and the physical address of the UE generate a third encryption key by using a second encryption algorithm in the third increase request message.
  • Step 606 The target master station sends a handover command message to the master station.
  • the handover command message includes release/increment configuration information from the station, a second encryption algorithm, and a current value of the second S counter.
  • Step 607 The master station sends a third RRC connection reconfiguration message to the UE.
  • the third RRC connection reconfiguration message includes a second encryption algorithm, a current value of the second S counter, and a current value of the NCC.
  • the third RRC Connection Reconfiguration message may also include a header compression algorithm.
  • Step 608 The UE generates a third encryption key according to the third RRC connection reconfiguration message, and performs reconstruction using the generated third encryption key.
  • the UE sends a third RRC connection reconfiguration complete message to the target control station.
  • the UE In this step, the UE generates the third encryption key according to the third RRC connection reconfiguration message, including: the current value of the second S counter in the third RRC connection reconfiguration message and the current value of the NCC, and the density from the core network.
  • the key generates a third virtual cell key, and generates a third encryption key according to the generated third virtual cell key and the physical address of the UE by using a second encryption algorithm in the third RRC connection reconfiguration message.
  • the UE may perform reconstruction using the generated third encryption key at the PDCP layer.
  • an embodiment of the present invention further provides an apparatus for dynamically constructing a virtual cell, including at least:
  • the first sending module 701 is configured to: send an event that the neighboring cell signal quality of the virtual cell is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold;
  • the first receiving module 702 is configured to: receive an event that the neighboring cell signal quality of the virtual cell from the user equipment UE is greater than the first preset threshold, or a measurement report of an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold. ;
  • the adding module 703 is configured to: the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the cell identifier of the event that the neighboring cell signal level of the virtual cell is greater than the second preset threshold The cells are added one by one to the slave site;
  • the master station and the slave station form a first virtual cell.
  • the first sending module is further configured to: send, to the UE, an event that the signal quality of the slave station is less than a third preset threshold or the signal level of the slave station is less than a fourth preset threshold. event;
  • the first receiving module 702 is further configured to: receive an event that the signal quality of the slave station from the UE is less than a third preset threshold, or an event that the signal level of the slave station is less than a fourth preset threshold. measurement report;
  • the deleting module 704 is configured to: the event corresponding to the slave station identifier of the event that the signal quality of the slave station is less than the third preset threshold or the measurement report of the event that is less than the fourth preset threshold of the station Site deletion; performing key update on the slave stations of the UE and the second virtual cell;
  • the master station and the first virtual cell in the first virtual cell form a second virtual cell except the slave station other than the deleted station.
  • the first sending module 701 is further configured to: send a signal quality of the main control station to the UE that is less than a fifth preset threshold or a signal level of the main control station is less than a sixth preset threshold.
  • the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than that of the main control station
  • the difference between the signal quality of the zone and the first preset deviation value or the event that the signal level of the master station is smaller than the difference between the signal level of the adjacent zone of the master station and the second preset offset value;
  • the signal quality of the station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the adjacent area signal of the main control station.
  • the first receiving module 702 is further configured to: receive a signal quality of the main control station from the UE is less than a fifth preset threshold or a signal level of the main control station is less than a sixth preset threshold, and the master station The signal quality of the neighboring area is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than the adjacent area signal quality of the main control station and the first pre-predetermined a measurement report of the difference between the deviation values or the event that the signal level of the master station is smaller than the difference between the adjacent station signal level and the second preset deviation value of the master station; receiving the target master station Switch command message;
  • the handover request message includes a key from the core network, a current value of the NCC, and encryption.
  • the algorithm list, the third RRC connection reconfiguration message includes a second encryption algorithm, a current value of the second S counter, and a current value of the NCC.
  • an embodiment of the present invention further provides an apparatus for dynamically constructing a virtual cell, including at least:
  • the selecting module 801 is configured to: select a serving cell, use the selected serving cell as a master control station, and establish a service on the master control site;
  • the second receiving module 802 is configured to: receive an event that the neighboring cell signal quality of the virtual cell from the main control site is greater than the first preset threshold, or an event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold, The neighboring area of the control station performs measurement; receives a first RRC connection reconfiguration message from the master station, generates a first encryption key according to the first RRC connection reconfiguration message, and uses the generated first encryption key to perform reconstruction;
  • the second sending module 803 is configured to: determine that an event in the neighboring area of the active control station that meets the quality of the neighboring cell of the virtual cell is greater than the first preset threshold, or that the neighboring cell signal level of the virtual cell is greater than the second preset threshold.
  • the event that the signal quality of the neighboring cell of the virtual cell is greater than the first preset threshold or the event signal of the neighbor cell of the virtual cell is greater than the second preset threshold The master station sends a first RRC connection reconfiguration complete message and initiates a random access procedure to the secondary station.
  • the second receiving module 802 is further configured to: receive an event that the signal quality of the slave station from the autonomous control station is less than the third preset threshold, or the signal level of the slave station is less than the fourth pre- Setting a threshold event; measuring a slave station in the first virtual cell; receiving a second RRC connection reconfiguration message from the master station, generating a second encryption key according to the second RRC connection reconfiguration message Reconstructing using the generated second encryption key;
  • the second sending module 803 is further configured to:
  • the station sends a measurement report that the event that the signal quality of the station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold; and sends a second RRC connection reconfiguration complete message to the master station.
  • the second receiving module is further configured to: the signal quality of the main control station that receives the self-control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset. Threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the signal level of the neighboring area of the main control station is greater than the eighth preset threshold; or the signal quality of the main control station is smaller than that of the main control station
  • the difference between the signal quality of the neighboring area and the first preset deviation value or the event that the signal level of the master station is smaller than the difference between the adjacent station signal level and the second preset deviation value of the master station,
  • the neighboring area of the control station performs measurement; receives a third RRC connection reconfiguration message from the master control station, generates a third encryption key according to the third RRC connection reconfiguration message, and uses the generated third encryption key to perform reconstruction;
  • the second sending module 803 is further configured to:
  • the signal quality of the main control station in the neighboring area of the main control station is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station
  • the difference between the difference or the signal level of the master station is smaller than the event of the difference between the neighboring area signal level of the master station and the second preset offset value, the master station is sent to the master station.
  • the signal quality is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the neighboring area signal quality of the main control station is greater than the seventh preset threshold or the adjacent station signal level of the main control station is greater than The event of the eighth preset threshold; or, the signal quality of the master station is smaller than the difference between the signal quality of the neighboring area of the master station and the first preset offset value or the signal level of the master station is smaller than that of the master station Neighbor signal level Second predetermined measurement report event of a difference between the offset value; sending a third master site to the target RRC connection reconfiguration complete message, and initiates a random access procedure from the site.
  • an embodiment of the present invention further provides an apparatus for dynamically constructing a virtual cell, including at least:
  • the third receiving module 901 is configured to:
  • the third sending module 902 is configured to:
  • the third sending module 902 is further configured to: after the random access procedure initiated by the UE is completed, send an add completion message to the master control station.
  • the third receiving module 901 is further configured to: receive a delete request message from the master control station;
  • the third sending module 902 is further configured to: release the corresponding resource, and send a delete confirmation message to the master station.
  • the third receiving module 901 is further configured to: receive a third increase request message from the target master station; generate a second encryption key according to the third increase request message, and use the generated The second encryption key is configured;
  • the third sending module 902 is further configured to: send a third increase command message to the target master station.
  • the embodiment of the invention further discloses a computer program, including program instructions, which, when executed by the server, enable the server to perform the method of dynamically constructing a virtual cell on the side of any of the above-mentioned master stations.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • the embodiment of the invention further discloses a computer program, including program instructions, when the program instruction is executed by the UE, so that the UE can perform the method of dynamically constructing a virtual cell on the arbitrary UE side.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • the embodiment of the invention further discloses a computer program, comprising program instructions, which when executed by the server, enable the server to perform any of the above methods of dynamically constructing a virtual cell from the site side.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • the event that the neighboring cell signal quality of any of the foregoing virtual cells is greater than the first preset threshold or the event that the neighbor cell signal level of the virtual cell is greater than the second preset threshold may include an A4 event.
  • Any event that the signal quality of the slave station is less than the third preset threshold or the event that the signal level of the slave station is less than the fourth preset threshold may include the A2 event.
  • the signal quality of any of the above-mentioned main control stations is less than the fifth preset threshold or the signal level of the main control station is less than the sixth preset threshold, and the signal quality of the neighboring area of the main control station is greater than the seventh preset threshold or the main control station.
  • the signal level of the neighboring area is greater than the event of the eighth preset threshold; or the signal quality of the master station is smaller than the difference between the signal quality of the neighboring area of the master station and the first preset offset value or the signal of the master station
  • the event that the level is less than the difference between the adjacent zone signal level of the master station and the second preset offset value may include an A5 event.
  • the serving cell selected by the UE may be any cell, and does not need to be a macro cell, and the master station will satisfy the event that the neighbor cell signal quality of the virtual cell is greater than the first preset threshold or the neighbor of the virtual cell.
  • a cell in which an area signal level is greater than a second preset threshold is added as a slave station, thereby implementing a virtual cell. Therefore, the present invention has strong industrial applicability.

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

Abstract

L'invention concerne un procédé et un dispositif pour construire de façon dynamique une cellule virtuelle, le procédé comprenant les étapes suivantes : un site maître envoie à un équipement d'utilisateur (UE) des événements de cellules adjacentes à une cellule virtuelle dans laquelle la qualité du signal est supérieure à un premier seuil prédéfini ou des événements de cellules adjacentes à une cellule virtuelle dans laquelle le niveau de puissance de signal est supérieur à un second seuil prédéfini, et reçoit à partir dudit équipement d'utilisateur un rapport de mesure d'événements de cellules adjacentes à une cellule virtuelle dans laquelle la qualité du signal est supérieure au premier seuil prédéfini ou d'événements de cellules adjacentes à une cellule virtuelle dans laquelle le niveau de puissance de signal est supérieur à un second seuil prédéfini ; le site maître ajoute en tant que sites esclaves les cellules dont les identificateurs correspondent aux cellules dans ledit rapport de mesure qui sont des cellules adjacentes à une cellule virtuelle ayant des événements de qualité du signal supérieure à un premier seuil prédéfini ou des cellules adjacentes à une cellule virtuelle ayant des événements de niveau de puissance de signal supérieur à un second seuil prédéfini ; le site maître et lesdits sites esclaves constituent alors une première cellule virtuelle. La solution technique de la présente invention réalise une cellule virtuelle.
PCT/CN2015/089744 2014-09-17 2015-09-16 Procédé et dispositif de construction dynamique d'une cellule virtuelle WO2016041496A1 (fr)

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CN201410476754.4 2014-09-17
CN201410476754 2014-09-17
CN201510012995.8A CN105828337A (zh) 2014-09-17 2015-01-09 一种动态构建虚拟小区的方法和装置
CN201510012995.8 2015-01-09

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CN103503517A (zh) * 2012-01-11 2014-01-08 华为技术有限公司 一种优化异频切换时延的方法和设备
WO2014074064A1 (fr) * 2012-11-12 2014-05-15 Telefonaktiebolaget L M Ericsson (Publ) Procédé et nœud de réseau pour la configuration d'une cellule d'un nœud à faible consommation d'énergie

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CN102595543A (zh) * 2011-01-10 2012-07-18 中兴通讯股份有限公司 一种终端内多种无线技术共存的通信方法和系统
US20130064226A1 (en) * 2011-09-12 2013-03-14 Esmael Dinan Handover in Heterogeneous Wireless Networks
CN103503517A (zh) * 2012-01-11 2014-01-08 华为技术有限公司 一种优化异频切换时延的方法和设备
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