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WO2017148379A1 - Procédé et appareil de communication appliqués à une supercellule - Google Patents

Procédé et appareil de communication appliqués à une supercellule Download PDF

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Publication number
WO2017148379A1
WO2017148379A1 PCT/CN2017/075285 CN2017075285W WO2017148379A1 WO 2017148379 A1 WO2017148379 A1 WO 2017148379A1 CN 2017075285 W CN2017075285 W CN 2017075285W WO 2017148379 A1 WO2017148379 A1 WO 2017148379A1
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WO
WIPO (PCT)
Prior art keywords
super cell
controller
access network
radio access
cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/075285
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English (en)
Chinese (zh)
Inventor
耿婷婷
蔡西蕾
张宏平
曾清海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
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Publication of WO2017148379A1 publication Critical patent/WO2017148379A1/fr
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Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communications and, more particularly, to a communication method and apparatus for use in a super cell.
  • UE User Equipment
  • mobility management of the UE is required. For example, when the UE moves from the coverage of the source cell to the coverage of the target cell, it is necessary to complete the handover between the cells in time.
  • the design idea of mobility management is a network-oriented design idea (UE follows network). Taking the UE in the connected state as an example, in order to implement the mobility management of the UE, each cell in the network sends a downlink reference signal for measurement by the UE. The UE reports the measurement result to the network side in the form of a measurement report. The network performs a handover decision based on the measurement report of the UE, and switches the UE to a cell with a good signal condition for data transmission.
  • UE network-oriented design idea
  • the UE needs to measure a large number of small cells, which requires high measurement capability for the UE. For example, the UE can perform the handover after the measurement is performed and the measurement report is reported. Because the coverage of the small cell is small, the UE may be fast. If the coverage of the small cell is removed, the switch may fail due to insufficient handover. For example, the measurement report fails to be sent to the small cell, and the switch command fails to be sent. For example, due to the ultra-dense cell deployment, operations such as measurement report reporting and handover may generate a large amount of air interface signaling, and consume a large amount of air interface resources and network processing resources.
  • the present application proposes a communication method, a radio access network controller, a user equipment, and a transmission point applied to a super cell to solve the problem of difficulty in mobility management of a hot spot.
  • a communication method applied to a super cell includes the controller of the radio access network determining that the UE is in an overlapping area of the first super cell and the second super cell.
  • the UE belongs to the first super cell, and the first super cell and the second super cell each include multiple transmission points (TPs).
  • the controller of the radio access network sends a Shared Dedicated User Equipment Identity (SDUI) to the TP of the UE and the first TP set, where the SDUI is used by the first super cell
  • SDUI Shared Dedicated User Equipment Identity
  • the first TP set is a TP set allocated by the controller of the radio access network to the UE for measuring an uplink reference signal sent by the UE, where the first TP set includes the first super cell
  • the controller of the radio access network receives a measurement report from each TP in the first TP set
  • the measurement report of each TP is used to indicate the quality of the uplink reference signal detected by each TP.
  • the controller of the radio access network updates the first TP set according to the measurement report of the TP in the first TP set.
  • the UE belonging to the first super cell may mean that the UE is located within the coverage of the first super cell, and mainly provides data or communication service by the TP in the first super cell.
  • the UE may maintain a Radio Resource Control (RRC) connection with a certain TP in the first super cell.
  • RRC Radio Resource Control
  • the method further includes: before the UE moves to the overlapping area, a controller of the radio access network to the UE and a Each TP of the three TP sets sends a first dedicated user equipment identifier (DUI), where the first DUI is used to identify the UE in the first super cell, and the third TP set
  • the TP in the TP is the TP in the first super cell
  • the TP in the third TP set measures the uplink reference signal sent by the UE based on the first DUI
  • the controller of the radio access network determines The UE is in the overlapping area of the first super cell and the second super cell, and the controller of the radio access network determines that the UE is in the overlapping area according to the measurement report of the TP in the third TP set.
  • the controller of the radio access network can conveniently determine whether the UE is in an overlapping area by analyzing the measurement report of the TP in the third TP set.
  • the controller of the radio access network determines, according to the measurement report of the TP in the third TP set, that the UE is in the overlapping area, may include: the radio access The controller of the network selects a measurement report of the TP of the second super cell from the measurement report of the third TP set; when the number of measurement reports of the TP that is close to the second super cell is greater than a preset threshold The controller of the radio access network determines that the UE is in the overlapping area.
  • the method further includes: the controller of the radio access network, the second super A TP in the cell is added to the third TP set, and the third TP set in which the TP in the second super cell is added is used as the first TP set.
  • the method further includes: the wireless access network Determining, by the controller, to switch the UE to the second super cell according to the measurement report of the TP in the first TP set; the controller of the radio access network sends a handover command to the UE, where the handover The command is used to instruct the UE to switch to the second super cell.
  • the controller of the radio access network determines to switch the UE to the second super cell according to the measurement report of the TP in the first TP set, including: The controller of the radio access network selects, from the measurement report of the TP in the first TP set, the measurement report of the TP of the first super cell and the measurement report of the TP of the second super cell respectively; when the second super When the average quality of the uplink reference signal indicated by the measurement report of the TP of the cell is higher than the average quality of the uplink reference signal indicated by the measurement report of the TP of the first super cell, the controller of the radio access network determines that The UE switches to the second super cell.
  • the controller of the radio access network can conveniently determine the handover timing of the UE between the super cells by analyzing the measurement report of the TP in the first TP set.
  • the UE is a UE in an active state
  • the method further includes: the controller of the radio access network sends the SDUI to a TP in a second TP set, where the second TP The set is a TP set allocated by the controller of the radio access network to the UE for data communication with the UE; the controller of the radio access network is based on the TP in the first TP set
  • the measurement report updates the second TP set.
  • the controller of the radio access network analyzes each TP in the first TP set.
  • the measurement report can conveniently update the second TP set for providing data communication services for the UE. For example, selecting a better quality TP of the measured uplink reference signal of the UE from the first TP set provides the data communication service for the UE, thereby ensuring Continuity of UE services.
  • the controller of the radio access network sends an SDUI to the UE, including: a controller of the radio access network Sending the SDUI to the UE by using a TP in the second TP set.
  • the UE is a UE in a power-saving state
  • the wireless The controller of the access network sends the SDUI to the UE, including: the controller of the radio access network sends the SDUI to the UE by using a paging message.
  • the controller of the radio access network is configured according to the first
  • the measurement report of the TP in the TP set, the updating the first TP set may include: the controller of the radio access network deleting the TP and/or the first TP set according to the measurement report of the TP of the first TP set A TP is added to a TP set.
  • the measurement report of a certain TP in the first TP set indicates that the TP does not detect the uplink reference signal of the UE, or the quality of the uplink reference signal of the UE detected by the TP is less than a preset threshold, and the control of the radio access network
  • the TP may be deleted from the first TP set; for example, the measurement report of a certain TP in the first TP set indicates that the quality of the uplink reference signal of the UE detected by the TP is greater than a preset threshold, and the TP may be used.
  • the surrounding TP is also added to the first TP set.
  • the controller of the radio access network may include: a measurement report of the TP of the controller of the radio access network according to the first TP set , deleting the TP in the second TP set and/or adding the TP to the second TP set.
  • the measurement report of a certain TP in the first TP set indicates that the TP does not detect the uplink reference signal of the UE, or the quality of the uplink reference signal of the UE detected by the TP is less than a preset threshold, and the control of the radio access network
  • the TP may be deleted from the second TP set; for example, the measurement report of a TP in the first TP set indicates that the uplink reference signal quality of the UE detected by the TP is greater than a preset threshold, and the TP may be around The TP is also added to the second TP set.
  • the controller of the radio access network can conveniently update and maintain the first TP set and the second TP set.
  • the controller of the radio access network is a first radio interface
  • the controller of the network access, the controller of the first radio access network of the first super cell, the controller of the second radio access network belongs to the controller of the second radio access network, and the control of the radio access network
  • the method may further include: controlling the controller of the first radio access network and the second radio access network
  • the router negotiates to determine a first TP set of the UE.
  • the sending, by the controller of the radio access network, the SDUI to the TP in the first TP set of the UE and the UE may include: the controller of the first radio access network to the first TP set The TP belonging to the first super cell sends the SDUI; the controller of the first radio access network Transmitting, by the controller of the second radio access network, the SDUI to a TP belonging to the second super cell in the first TP set.
  • a communication method applied to a super cell includes: receiving, by the UE, an SDUI sent by a controller of a radio access network, where the UE belongs to a first super cell, and the UE is in an overlapping area of the first super cell and the second super cell, where the A super cell and the second super cell each include a plurality of TPs, and the SDUI is used by the TP in the first super cell and the TP in the second super cell to jointly identify the in the overlapping area.
  • the UE generates an uplink reference signal according to the SDUI, and the UE sends the uplink reference signal, so that the controller of the radio access network updates the report based on the measurement report of the TP in the first TP set.
  • the first TP set is a TP set allocated by the controller of the radio access network to the UE for measuring an uplink reference signal sent by the UE, where the first TP set includes The TP in the first super cell and the TP in the second super cell, the measurement report of each TP in the first TP set is used to indicate the quality of the uplink reference signal.
  • the generating, by the UE, the uplink reference signal according to the SDUI may include: the UE generates the uplink reference signal that is scrambled by the SDUI; or the UE sends the uplink reference signal to the network side.
  • the uplink reference signal corresponding to the SDUI (the correspondence between the SDUI and the uplink reference signal may be established in advance).
  • the method further includes: before the UE moves to the overlapping area, the UE receives a controller of the radio access network as a a first dedicated user equipment identifier DUI and a third TP set allocated by the UE, where the first DUI is used to identify the UE in the first super cell, and the TP in the third TP set is the a TP in the first super cell; the UE sends an uplink reference signal according to the first DUI, so that the TP in the third TP set measures an uplink reference signal sent by the UE.
  • the sending, by the UE, the uplink reference signal according to the first DUI may include: the UE sending, to the network side, an uplink reference signal that is scrambled by the first DUI; or The UE sends the uplink reference signal corresponding to the first DUI to the network side (the correspondence between the first DUI and the uplink reference signal may be established in advance).
  • the controller of the radio access network allocates a first DUI to the UE in the first super cell, and maintains a third TP set for the UE, where the TP of the third TP set measures the uplink reference signal sent by the UE, without the need of the prior art.
  • the downlink reference signal transmitted by the network side is measured by the UE, which simplifies the design complexity of the UE and facilitates the mobility management of the UE.
  • the method further includes: receiving, by the UE, a controller sent by the radio access network And a handover command, the handover command is used to instruct the UE to switch to the second super cell.
  • the UE is an UE in an active state
  • the method further includes: the UE performing data communication with the TP in the second TP set according to the SDUI, where the second TP set is configured by the controller of the radio access network for the UE The TP set of data communication performed by the UE.
  • the UE performs data communication with the TP in the second TP set according to the SDUI, including: when the UE performs data communication with the TP in the second TP set, The SDUI scrambles the data.
  • the UE performs data communication with the TP in the second TP set in the time-frequency resource corresponding to the SDUI (the correspondence between the SDUI and the time-frequency resource may be established in advance).
  • the controller of the radio access network configures and maintains the second TP set for the UE in the overlapping area of the first super cell and the second super cell, ensuring the data communication requirement of the UE in the overlapping area, and realizing overlapping of the UE Regional mobility management.
  • the receiving, by the UE, the SDUI sent by the controller of the radio access network includes: the UE adopting the second TP
  • the TP in the set receives the SDUI sent by the UE.
  • the UE is a UE in a power-saving state
  • Receiving, by the UE, the SDUI sent by the controller of the radio access network includes: receiving, by the UE, the SDUI sent by the radio network controller by using a paging message.
  • a third aspect provides a communication method applied to a super cell, including: receiving, by the UE of the radio access network, a shared user equipment-specific identifier SDUI of the UE from a UE of the radio access network, the UE
  • the first super cell and the second super cell each include multiple TPs, and the SDUI is used by the first super cell and the second super cell.
  • the TP in the first super cell and the TP in the second super cell jointly identify the UE in the overlapping area, and the first TP set is a controller of the radio access network.
  • the target TP may include: the target TP measures the uplink reference signal that is descrambled by using the SDUI. .
  • the target TP receives the uplink reference signal from the time-frequency resource corresponding to the SDUI (the correspondence between the SDUI and the time-frequency resource may be established in advance); the target TP measures the received at the time-frequency resource.
  • the upstream reference signal is described.
  • the method further includes: the target TP receiving first indication information sent by a controller of the radio access network, the first indication information And a controller for instructing the radio access network to delete the target TP from the first TP set; and the target TP stops measuring an uplink reference signal sent by the UE.
  • the method further includes: the target TP is received from a controller of the radio access network And second indication information, where the second indication information is used to indicate that the controller of the radio access network adds the target TP to the second TP set; and the target TP performs data communication with the UE.
  • the method further includes: the target TP receiving third indication information from a controller of the radio access network, The third indication information is used to indicate that the controller of the radio access network deletes the target TP from the second TP set.
  • a controller for a radio access network comprising means for performing the method of the first aspect.
  • a UE comprising means for performing the method of the second aspect.
  • a TP is provided, the TP comprising means for performing the method of the third aspect.
  • a controller for a radio access network comprising a memory, a processor, and a transceiver.
  • the memory is for storing a program
  • the processor is for executing a program
  • the transceiver is for communicating with a TP in a super cell.
  • the processor performs the method of the first aspect when the program is executed.
  • a UE comprising a memory, a processor, and a transceiver.
  • the memory is for storing a program
  • the processor is for executing a program
  • the transceiver is for communicating with a TP in the super cell.
  • the processor is operative to perform the method of the second aspect when the program is executed.
  • a TP comprising a memory, a processor, and a transceiver.
  • the memory is for storing a program
  • the processor is for executing a program
  • the transceiver is configured to communicate with a UE in the super cell and a controller of a radio access network.
  • the processor is operative to perform the method of the third aspect when the program is executed.
  • a tenth aspect a communication system comprising the controller of the radio access network according to the fourth aspect, the UE of the fifth aspect, and the TP of the sixth aspect.
  • a communication system comprising the controller of the radio access network as described in the fourth aspect, and the TP as described in the sixth aspect.
  • a twelfth aspect a communication system comprising the controller of the radio access network according to the seventh aspect, the UE of the eighth aspect, and the TP of the ninth aspect.
  • a thirteenth aspect a communication system for a super cell, comprising the controller of the radio access network according to the seventh aspect, and the TP according to the ninth aspect.
  • a system chip including an input interface, an output interface, at least one processor, and a memory, wherein the input interface, the output interface, the processor, and the memory are connected by a bus, and the processor is used by The code in the memory is executed, and when the code is executed, the processor implements the method in the first aspect.
  • a system chip including an input interface, an output interface, at least one processor, and a memory, where the input interface, the output interface, the processor, and the memory are connected by a bus, and the processor is used by The code in the memory is executed, and when the code is executed, the processor implements the method in the second aspect.
  • a system chip including an input interface, an output interface, at least one processor, and a memory, where the input interface, the output interface, the processor, and the memory are connected by a bus, and the processor is used by The code in the memory is executed, and when the code is executed, the processor implements the method in the third aspect.
  • a seventeenth aspect a computer readable medium storing program code for execution by a controller of a wireless access network, the program code comprising instructions for performing the method of the first aspect .
  • a computer readable medium storing program code for execution by a UE, the program code comprising instructions for performing the method of the second aspect.
  • a computer readable medium storing program code for TP execution, the program code comprising instructions for performing the method of the third aspect.
  • the network side may refer to the access network side, and may include a TP and a controller of the radio access network.
  • the handover command can include at least one of the following parameters: a Timing Advance (TA) value and a second DUI, wherein the TA value is available to the UE and the first The TP in the second super cell performs uplink synchronization, and the second DUI is used to identify the UE in the second super cell.
  • TA Timing Advance
  • the working mode of the UE is a non-cell working mode, and in the non-cell mode, the network side performs mobility management on the UE by measuring an uplink reference signal sent by the UE.
  • the UE further supports a cell working mode, where the network side performs mobility management on the UE based on the measurement of the downlink reference signal sent by the UE to the network side.
  • the non-cell working mode supported by the UE may also be referred to as a non-normal cell working mode or a super cell working mode
  • the cell working mode supported by the UE may also be referred to as a normal cell working mode.
  • the network side may perform mobility management on the UE through handover of the serving cell of the UE.
  • the network side is based on the UE's TP set in the super cell (the first TP set and/or The second TP set) performs mobility management on the UE.
  • the first TP set may be referred to as a measurement cluster of the UE, and the second TP set may be referred to as a transport cluster of the UE.
  • the second TP set may be a subset of the first TP set.
  • the controller of the radio access network may maintain the first TP set and the second TP set for the UE that is in the active state of the super cell, where the first TP set is used to measure the uplink reference signal sent by the UE, and the second The TP set is used for data communication with the UE.
  • the controller of the radio access network may continuously update the first TP set and the second TP set based on the quality of the uplink reference signal sent by the UE measured by the TP in the first TP set, so that mobility management of the UE may be implemented.
  • the TPs in the second TP set are all TPs in the first super cell.
  • the super cell may be a cell including multiple TPs.
  • the super cell may be a cell including multiple cells (ordinary cells, or small cells, or small cells).
  • the update of the first TP set may refer to an update of a member of the first TP set; or the update of the first TP set may refer to at least one of: deleting the TP in the first TP set, Add a TP to the first TP set.
  • the update of the second TP set may refer to the update of the members of the second TP set; or the update of the second TP set may refer to at least one of the following: deleting the TP in the second TP set, to the second TP Add a TP to the collection.
  • the first DUI is used to identify that the UE in the first super cell may refer to the first DUI for the TP in the first super cell to identify the UE.
  • the uplink and downlink data of the UE and the uplink reference signal may be scrambled by the first DUI.
  • the second DUI is used to identify that the UE in the second super cell may refer to the second DUI for the TP in the second super cell to identify the UE.
  • the uplink and downlink data of the UE and the uplink reference signal may be scrambled by the second DUI.
  • the first DUI may uniquely identify the UE in the first super cell
  • the second DUI may uniquely identify the UE in the second super cell.
  • the DUI may be any one or any combination of C-RNTI, hyper cell ID, TP ID, cell ID, newly defined ID, and the like.
  • the update of the second TP set may also be triggered by the UE.
  • the UE performs corresponding search measurement when idle, when the TP that meets the condition is detected, and the TP is not configured by the controller of the radio access network.
  • the UE may report the information of the TP, including the TP ID and the signal strength, to the controller of the radio access network; the controller of the radio access network according to the configuration principle An update of the corresponding TP set can be performed.
  • the present application simplifies mobility management of overlapping areas between super cells by allocating SDUIs to UEs in the first super cell and the second super cell overlapping area.
  • FIG. 1 is a schematic diagram of a scenario of a hyper cell according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a communication method applied to a hyper cell according to an embodiment of the present invention.
  • FIG. 3 is a diagram showing an example of a TP set of a UE according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method applied to a super cell according to an embodiment of the present invention.
  • FIG. 5 is a diagram showing an example of a position distribution of a super cell having an overlapping area.
  • FIG. 6 is a flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a controller of a radio access network according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a TP according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a controller of a radio access network according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • FIG. 16 is a schematic structural diagram of a TP according to an embodiment of the present invention.
  • 17 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • 19 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset). And portable devices, etc., the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • the prior art adopts a network-centric design idea for the mobility management of the UE, but the design idea is applied to the hotspot area where a large number of small cells are deployed in a centralized manner, which may cause difficulty in mobility management of the UE.
  • the embodiment of the present invention introduces the concept of a hyper cell (also referred to as a cell cluster), and proposes a UE-like network (network following UE), that is, mobility management based on the UE, and can be in a hot spot.
  • the area performs effective mobility management for the UE.
  • the mobility management of the UE may refer to the management of the location information, security, and service continuity of the UE, and strives to optimize the contact state between the UE and the network, thereby providing guarantee for application of various network services.
  • the location information of the UE is tracked and recorded in real time; as the location of the UE moves, the network element that serves the UE is switched to ensure that the UE service is not interrupted.
  • the hyper cell can be configured with a hyper cell ID, and the hyper cell can include the same frequency and/or different. Multiple TPs of the frequency (optionally, as an embodiment, the hyper cell may also include only one TP), or the hyper cell may include multiple cells (optionally, as an embodiment, the hyper cell also It may include only 1 cell). It can be understood that the ID of the TP (or cell) in the hyper cell can be consistent with the ID of the hyper cell, or can be configured separately.
  • the UE moves in the hyper cell. If the mobility management mode of the prior art is still used, the UE will frequently perform cell handover because each TP corresponds to one or more cells (or small cells).
  • the common information of the TP in the hyper cell may be configured to be consistent.
  • the synchronization channel, the downlink reference channel, and the broadcast channel and the like have the same content.
  • the hyper cell is used.
  • the public information of the TP is the same, and the UE has no perception of the change of the serving cell.
  • the UE does not need to measure the downlink reference signal sent by each cell in the hyper cell. Instead, the UE sends an uplink reference signal, and the network side measures the uplink reference signal of the UE, and selects one or more TPs for the UE based on the measurement result. Data transfer.
  • the task of measuring the uplink reference signal and the TP handover can be completed by the network side, and the UE is not aware of the TP transformation as much as possible, which is equivalent to introducing the "no cell” working mode, so that not only the working mode is introduced, but not only the "no cell” is introduced. It can ensure the continuity of services, and can reduce the overhead of air interface signaling. The UE does not need to undertake heavy measurement tasks, and the design complexity is also reduced accordingly.
  • the working mode of “no cell” may be that the UE is responsible for transmitting the uplink reference signal, and the TP of the data communication service is continuously updated and maintained by the network side, so that the UE does not perceive the change of the TP as much as possible.
  • the “cell” herein refers to a normal cell in the prior art, that is, a normal cell.
  • the working mode of “no cell” in this application may also be referred to as a working mode of a super cell.
  • the UE is assigned a DUI, and the super cell can identify the UE according to the DUI.
  • the TP in the super cell may provide a data communication service for the UE based on the DUI; the TP in the super cell may also measure the uplink reference signal sent by the UE based on the DUI.
  • the DUI may be any one or any combination of C-RNTI, hyper cell ID, TP ID, cell ID, newly defined ID, and the like.
  • the specific type of the TP is not limited in the embodiment of the present invention.
  • it may be a normal base station (such as a NodeB or an eNB), may be a radio remote module, may be a pico base station, or may be a relay. ) or any other wireless access device.
  • the TP can report the no cell capability to the RAN controller, and the RAN controller performs no cell configuration on the TP supporting the no cell capability.
  • the no cell capability herein may refer to various capabilities required for the TP to work in the super cell, such as the capability of measuring the uplink reference signal sent by the UE.
  • the configuration of the measurement capability of the uplink reference signal of the TP is taken as an example for illustration.
  • the RAN controller can send measurement configuration signaling (or measurement control signaling) to the TP.
  • measurement configuration parameters may be configured by using the measurement configuration signaling: DUI, uplink reference signal configuration, carrying measurement identifier, measurement event name, measurement interval, measurement report reporting mode, measurement reporting condition, and measurement parameter.
  • a set of measurement configuration parameters may be configured for each DUI (or each UE), or a set of measurement configuration parameters may be configured for all DUIs (or all UEs) in the super cell.
  • the measurement parameters may include at least one of a reception quality of the uplink reference signal, a received power of the uplink reference signal, a signal to noise ratio, a signal to interference and noise ratio, a path loss, and the like.
  • the measurement configuration parameter may also include at least one of the thresholds of the above various parameters.
  • the measurement report reporting mode may include at least one of an event-triggered reporting mode, a periodic reporting mode, an event-triggered reporting, and a periodic reporting mode.
  • the event-triggered reporting mode may be: when the TP measured uplink reference signal meets the threshold in the measurement configuration parameter, the TP sends a measurement report to the RAN controller.
  • the periodic reporting mode can be that the TP periodically sends measurement reports to the RAN controller.
  • the TP After the RAN controller configures the measurement configuration parameter of the uplink reference signal for the TP, the TP can measure the uplink reference signal sent by the UE according to the measurement configuration parameter, and report the measurement result to the RAN controller according to the measurement reporting mode.
  • the measurement configuration signaling may indicate that the TP performs the intra-frequency measurement, and may also instruct the TP to perform the inter-frequency measurement.
  • the RAN controller may send the measurement configuration signaling of the intra-frequency measurement to the TP, or may send the measurement configuration signaling of the inter-frequency measurement to the TP.
  • the RAN controller may instruct the TP to perform the inter-frequency measurement, that is, the TP is configured to measure the uplink reference signal sent by the UE on the F2.
  • the RAN controller may also instruct the UE to send an uplink reference signal at the working frequency of the TP, that is, the F1 frequency band, and then instruct the TP to perform the same frequency measurement. In this way, the TP only needs to measure the uplink reference signal in its own working frequency band. It should be understood that the above two measurement methods may be used alone or in combination, which is not specifically limited in the embodiment of the present invention.
  • the RAN controller When the RAN controller receives the measurement report reported by each TP, it can determine whether to update the TP set of the UE transmission data according to the measurement report reported by each TP. Specifically, the RAN controller may compare the measurement result reported by each TP with the measurement result reported by the TP set currently transmitted by the UE, or may be the measurement result reported by each TP and the TP in the TP set currently transmitted by the UE.
  • the difference or absolute difference of the reported measurement result is compared with a certain threshold, and the measurement result reported by each TP and the average value of the measurement result reported by the TP set currently transmitted by the UE may be compared one by one, or may be The difference between the measurement result reported by each TP and the measurement result reported by the TP set in the TP set currently transmitted by the UE is compared with a certain threshold, and whether the TP of the UE transmission data is updated according to the comparison result is determined. set.
  • the measurement parameter is the reception quality of the reference signal
  • the TP set currently transmitting data for the UE includes TP1 and TP2
  • the RAN controller assigns measurement tasks to TP1, TP2, TP3, and TP4 respectively, that is, when the reception quality of the reference signal is high.
  • a measurement report is sent to the RAN controller.
  • the RAN controller receives the received quality of the reference signals reported by TP1, TP2, and TP3.
  • the RAN controller can determine whether to update the TP set of the data transmitted by the UE according to the following manner:
  • Method 1 directly adding TP3 as a TP set for transmitting data of the UE, and updating the TP set for transmitting data of the UE to TP1, TP2, and TP3;
  • the second method is to compare the received signal quality reported by the TP3 with the result reported by the TP1 and the TP2 respectively, if the result of the TP3 is higher than the TP1, at least one of the TP2, or the difference between the received quality of the reference signal reported by the TP3 and the TP1, or The absolute difference is higher than a certain threshold, or if the difference or absolute difference of the reference signal received by TP3 and TP2 is higher than a certain threshold, the RAN controller may add TP3 to the TP set for transmitting data for the UE, or The RAN controller can also replace TP1 or TP2 with TP3.
  • TP1 and TP2 belong to the RAN controller 1
  • TP3 and TP4 belong to the RAN controller 2
  • the measurement report reported by the TP3 can be forwarded by the RAN controller 2.
  • the RAN controller 1 can forward all the received measurement reports, or can be based on certain policies. For example, after comparing the measurement results, only a part of the measurement reports are selected for forwarding.
  • the UE may be notified by at least one of the following party signaling or information: radio resource control RRC signaling, L1 signaling, L2 signaling, and downlink control information.
  • RRC signaling radio resource control RRC signaling
  • L1 signaling L1 signaling
  • L2 signaling downlink control information.
  • DCI Downlink Control Information
  • the name, the type, and the format of the signal for the network measurement sent by the UE are not specifically limited.
  • the following is an example in which the UE sends the uplink reference signal, but the embodiment of the present invention is not limited thereto, for example, It may be a newly introduced tracking signal for tracking the location of the UE, or may use a Sounding Reference Signal (SRS).
  • SRS Sounding Reference Signal
  • the hyper cell On the basis of the hyper cell, two states, a power-saving state and an active state, are introduced for the UE in the hyper cell. It should be understood that the power-saving state and the active state are separated from the idle state and the connected state in the prior art, but the embodiment of the present invention does not exclude the use of the idle state and the connected state after the introduction of the super cell.
  • the active state in the embodiment of the present invention may correspond to a connected state
  • the power saving state in the embodiment of the present invention may correspond to an idle state or a corresponding connected state.
  • the power saving state can exist independently of the hyper cell, that is, the power saving state can also be applied to the prior art, but is different from the idle state and the connected state in the prior art. .
  • the functions and characteristics of the UE in these two states are described in detail below.
  • the power-saving UE continues to retain the DUI of the UE and may have some or all of the following functions:
  • the dynamic control channel may not be monitored.
  • connection management (such as long-term link adaptation and long-period measurement) can be performed.
  • the signaling plane bearer and the user plane bearer of the core network may be reserved; or, the signaling plane bearer with the core network may be reserved, and the user plane bearer of the core network may be deleted.
  • an uplink background service or packet data to be transmitted it may be sent through a signaling plane bearer with the core network.
  • the data packet may be carried through the signaling of the access layer, or through a non-access stratum (Non-access stratum, NAS) signaling carries data packets.
  • NAS non-access stratum
  • the MME identifies the background service or packet data, and forwards the data to the Serving Gateway (SGW); optionally, as a type
  • SGW Serving Gateway
  • the power-saving UE may reserve a signaling plane bearer with the core network, delete a dedicated user plane bearer with the core network, and establish a public or default user plane bearer with the core network.
  • uplink background service or packet data to be transmitted it can be transmitted through the public or default user plane bearer with the core network.
  • the uplink reference signal is sent, which may be sent periodically, or may be sent after the event trigger condition is met.
  • the event triggering condition may be based on the speed trigger of the UE.
  • the current sending period configured by the network side is T
  • the speed threshold of the UE is V.
  • the UE speed is less than and/or equal to V
  • the transmission period of the uplink reference signal may be configured to be infinite.
  • the maximum transmission period of the reference signal may be configured, such as 256s, 30min, and the like.
  • the event triggering condition may also be triggered based on the UE detecting other hyper cells, for example, the UE moves to the coverage overlapping area of multiple hyper cells, and the UE detects another hyper in addition to the ID of the currently located hyper cell. The ID of the cell. At this time, the UE can send an uplink reference signal.
  • the active UE has a DUI and may have some or all of the following functions:
  • the UE has two states, and can perform switching between the two states. For example, when there is no service data transmission for a period of time after the UE data transmission is completed, the UE can switch from the active state to the power-saving state; In the power-saving state, the UE may not monitor the dynamic control channel, and only needs to support a small amount of connection management, and its power consumption is less than the active state.
  • whether the transition between the power saving state and the active state is performed may be determined by the UE by measuring a certain parameter or indicator. For example, when a certain parameter or indicator meets the threshold, the UE sends the indication information to the network side, and then the network side can control the UE to perform state transition according to the indication information.
  • the RAN controller may send a threshold to the UE in advance, where the threshold may be, for example, a threshold of the buffered data size of the UE; when the cached data of the UE exceeds the threshold, the UE reports the measurement report to the RAN controller. Then, the RAN controller controls the UE to perform state transition.
  • the RAN controller may send a measurement indication to the UE, and when the UE measures that the size of the buffered data exceeds the currently allowed data size, the UE reports the measurement report to the RAN controller, and then the RAN controller controls.
  • the UE performs state transition.
  • the indication information of the UE may be reported by using L2 signaling, or may be reported by RRC signaling, such as a measurement report, or may be reported in the initially sent data, for example, by using an indication bit in the initially transmitted data block.
  • the indication bit is set to TRUE for indication, which is not specifically limited in this embodiment of the present invention.
  • the network side may indicate, by using RRC signaling, that the UE performs an active state or a power saving state.
  • a new status indication cell may be added to the RRC signaling, where the status indication cell may indicate that the UE enters a power-saving state or an active state, and the UE may enter a corresponding state according to the indication of the status indication cell.
  • the TP set (also referred to as a TP cluster) formed by the TP in the area 1 can transmit the data of the UE (or provide a communication service for the UE) when the user equipment moves from the location 1.
  • the set of TPs that may be formed by the TPs in region 2 are provided for the UE. That is to say, during the movement of the UE, the TP for transmitting data for the UE may be continuously updated, and the task of the update may be completed by the network side based on the uplink reference signal sent by the UE.
  • the TP set of the UE may be classified into a UL TP set and a DL TP set according to whether the service is an uplink service of the UE or a downlink service of the UE.
  • the update of the UL TP set may be completed by the network side based on the uplink reference signal sent by the UE.
  • the update of the DL TP set may be performed by the network side based on the uplink reference signal sent by the UE, or, alternatively, as an embodiment, may be updated by the network side according to the measurement result of the downlink reference signal reported by the UE.
  • FIG. 2 is a schematic flowchart of a communication method applied to a hyper cell according to an embodiment of the present invention. It should be understood that FIG. 2 illustrates detailed communication steps or operations applied to the hyper cell, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations in FIG. 2. Moreover, the various steps in FIG. 2 may be performed in a different order than that presented in FIG. 2, and it is possible that not all operations in FIG. 2 are to be performed.
  • a cell mode also referred to as a normal-cell mode or a network-centric mode
  • a non-cell mode a UE-centric mode
  • the cell mode the mobility management mode of the prior art may be adopted, that is, the network sends a downlink reference signal, the UE measures the downlink reference signal and feeds back the measurement report, and the network side performs cell handover based on the measurement report; in the non-cell mode, The uplink reference signal is sent by the UE, the network measures the uplink reference signal of the UE, and then continuously updates the TP set for transmitting the UE data based on the measurement result.
  • the introduction of the two working modes is mainly to consider the flexibility and the compatibility problem.
  • the embodiment of the present invention does not exclude the complete replacement of the cell mode in the non-cell mode, or the mobility management in the cell mode only in the hyper cell. Possibility, in this case, the UE may be directly served in a non-cell mode without selecting an operating mode for the UE.
  • the radio access network controller provides mobility management for the UE, and the RAN controller may be an independent network element on the access network side, but
  • the RAN controller may be in the same entity as the TP, such as an access network device, and the TP may be a transmitting and receiving unit of the access network device; or the RAN controller may be a TP, and the TP may be Or not the TP in the TP set of the data transmission service provided by the UE.
  • the RAN controller can directly send signaling to the UE.
  • the UE initiates an initial access, and performs an RRC connection establishment process.
  • the related parameters may be carried to the network, and the parameters may include: the speed of the UE, the location of the UE, the detected signal condition of the neighboring cell, service information, and the like. These parameters may be parameters measured by the UE's Global Positioning System (GPS), or other means.
  • GPS Global Positioning System
  • the hyper cell sends an initial UE message to a core network (Core Network, CN).
  • Core Network Core Network
  • the CN sends an initial context setup request to the hyper cell.
  • the hyper cell establishes a connection with the CN for the UE.
  • the hyper cell can obtain information such as the UE type or the UE capability from the UE or the CN.
  • the UE type may be a UE that is a fixed location, such as a sensor, whether the UE is power sensitive or the like.
  • the UE capability may be, for example, whether the UE supports the non-cell mode, which frequency bands the UE supports, and the like.
  • the hyper cell sends a message to the RAN controller, requesting the RAN controller to determine the working mode of the UE.
  • the message sent by the hyper cell to the RAN controller may carry the information of the UE obtained through steps 202 to 206, for example, may be the system architecture evolution Temporary Mobile Subscriber Identity (S) of the UE. -TMSI), mobile speed of the UE, location of the UE, UE type, UE capability, service information of the UE, and the like.
  • S system architecture evolution Temporary Mobile Subscriber Identity
  • -TMSI Temporary Mobile Subscriber Identity
  • the RAN controller determines a working mode of the UE.
  • the RAN controller may determine the mode of operation of the UE based on the information provided by the hyper cell in step 208. For example, the RAN controller learns the approximate location of the UE, the moving speed, and the like based on the received information, and then determines whether it is suitable to adopt the non-cell mode based on the network deployment situation around the location, if the non-cell working mode is suitable, and the UE supports the non-cell mode. Then, the working mode of the UE can be determined to be a non-cell mode.
  • the RAN controller performs resource coordination with the TP in the hyper cell.
  • the RAN controller may allocate the first TP set and the second TP set to the UE based on the acquired information of the UE, such as the location of the UE, the speed of the UE, the type of the UE, and the like, and perform resource coordination with the TPs.
  • each TP set includes one or more TPs.
  • the TP in the second TP set may be used for data transmission of the UE. Therefore, the second TP set may also be referred to as a transport TP set of the UE, or a transport cluster, and the TP in the first TP set may be used to measure an uplink reference signal sent by the UE. Therefore, the first TP set may also be referred to as a measurement TP set of the UE, or a measurement cluster.
  • the TP in the first TP set and the second TP set may be a TP around the UE.
  • the second TP set may be a subset of the first TP set.
  • the first TP set includes a second TP set.
  • the first TP set may include a second TP set and the second TP set peripheral layer TP.
  • the TP set formed by all the TPs in the hyper cell may be set as the first TP set of the UE. In this case, all the TPs in the hyper cell need to be measured.
  • the uplink reference signal sent by the UE may be burdened by the network.
  • a part of the TP may be selected from the hyper cell to form a second TP set and a first TP set of the UE, and then The second TP set and the first TP set of the UE may be dynamically updated based on the movement of the UE location.
  • the RAN controller sends a no cell configuration message to the second TP set and the TP in the first TP set.
  • the non-cell configuration message may indicate that the TP in the second TP set provides a service for the UE, and indicates that the TP in the first TP set measures an uplink reference signal sent by the UE, and the non-cell configuration message may include an S-TMSI of the UE, optionally
  • the non-cell configuration message may further include a DUI allocated by the RAN controller to the UE, where the DUI may be used to identify the UE in the super cell (or uniquely identify the UE).
  • the DUI of the UE and the time-frequency resource (or time-frequency sequence) of the uplink reference signal sent by the UE may have a correspondence relationship
  • the TP in the first TP set may be according to the DUI of the UE and the Corresponding relationship, determining that the UE sends the time-frequency resource of the uplink reference signal, so that the uplink reference signal sent by the UE is measured on the time-frequency resource.
  • the embodiment of the present invention is not limited thereto.
  • the location of the time-frequency resource occupied by the uplink reference signal of the UE may be indicated by the non-cell configuration information to the TP in the first TP set.
  • the TP4 replaces the original TP3
  • some data related to the UE in the TP4 may be considered (for example, the data that is not successfully sent, Subsequent processing of data that has been sent but has not received an ACK.
  • the RAN controller and the TP3 need to exchange the unsent data of the UE and the data that has not received the ACK; the RAN controller sends the data to the TP3 according to the feedback of the TP3.
  • TP4 is sent by the TP4 to the UE; the UE performs corresponding feedback according to the HARQ feedback mechanism configured by the RAN controller.
  • the processing of the Media Access Control (MAC) entity of the UE may also need to be considered.
  • the MAC entity 1 processes the data received by the hyper cell 1 and can carry the mapping between the MAC entity 1 and the two hyper cells (hyper cell 1 and hyper cell 2) when the TP4 (hyper cell 2) is configured to provide data services for the UE.
  • the relationship is to indicate that the MAC entity 2 processes the data of the TP4.
  • the UE can identify the hyper cell to which the TP belongs.
  • the UE When the UE receives the configuration indicating that the replaced TP belongs to a different hyper cell, the UE can clear the buffered data received from the TP3.
  • the TP may only include the physical layer PHY, and the MAC and its upper layer are located on the BBU-pool side. Therefore, the data forwarding process is triggered only when the BBU-pool changes.
  • the Packet Data Convergence Protocol PDCP
  • BBU baseband unit
  • other protocol layers are on the TP side (or all protocol layers). Both are on the TP side.
  • every TP handover will involve the RRC reconfiguration process.
  • the data sent to the UE may be pre-stored in each TP.
  • the UE completes the related reset process according to the network configuration, such as completing the weight of at least one protocol layer in the RRC, PDCP, Radio Link Control (RLC), MAC, and PHY.
  • the indication message may be sent by at least one of the following message or signaling: a service request message, reconfiguration completion signaling, L2 signaling, uplink physical control, and a data channel.
  • the indication message may carry a current data buffering situation, for example, may carry an identifier of a protocol layer (the protocol layer may be at least one of protocol layers such as RRC, PDCP, RLC, MAC, PHY, etc.) and the protocol layer
  • the HARQ information corresponding to the data enables the new TP to uniquely identify the data according to the indication message, and perform data transmission on the UE according to the corresponding HARQ information (ACK or NACK information including the data).
  • the UE only updates the port number of the received data, or the UE only
  • the PHY protocol layer reset is performed as an example, the UE may send an indication message to the network side, and may carry the identifier information of one or more of the PDCP, the RLC, and the MAC in the indication message, where the indication message may further carry the identifier information.
  • the new TP receives the above indication message and retransmits the NACK information.
  • the new TP sends an acknowledgement message to the original TP, indicating that the original TP stops sending data to the UE.
  • the RAN controller sends a non-cell configuration message to the UE by using the TP.
  • the non-cell configuration message may be used to indicate that the UE works in a non-cell mode in the super cell.
  • the non-cell configuration message may include a DUI of the UE.
  • the UE may utilize the DUI to perform data transmission with the TP in the second TP set.
  • the non-cell configuration message includes information of a TP in the first TP set.
  • the hyper cell sends an initial context setup complete message to the CN.
  • the UE can work in the non-cell mode, perform data communication with the second TP set allocated by the RAN controller, and send an uplink reference signal for measurement by the first TP set.
  • the UE sends an uplink reference signal.
  • the time-frequency resource location of the uplink reference signal of the UE may be indicated by the cell configuration message in step 216.
  • the correspondence between the dedicated user equipment identifier of the UE and the reference signal time-frequency resource may be established in advance, and the UE The time-frequency resource for transmitting the uplink reference signal may be determined based on the correspondence.
  • the uplink reference signal may be an SRS.
  • the uplink reference signal may be sent periodically, or the UE may transmit after a certain distance, and the distance may be configured by the network, or a combination of the foregoing two transmission modes, that is, after detecting that the mobile has moved a certain distance. And also sent after the cycle time has elapsed.
  • the TP in the first TP set measures the uplink reference signal sent by the UE, and reports the measurement report to the RAN controller.
  • the RAN controller may continuously adjust or update the second TP set based on the measurement report reported by the TP in the first TP set or the second TP set (or describe to continuously adjust or update the members of the second TP set, for example, join other TPs.
  • the RAN controller may also continuously adjust or update the first TP set (or expressly adjust or update the members of the first TP set, for example, add other TPs to the first TP set and/or delete the first TP. a member of the collection).
  • the TP when the uplink reference signal of the UE measured by a certain TP in the second TP set is degraded, for example, below a certain threshold, the TP may be deleted from the second TP set; when the first TP set A certain TP in the network does not detect the uplink reference signal (or the detected uplink reference signal is below a certain threshold) and satisfies certain conditions (for example, a layer of TP in the vicinity thereof cannot detect the uplink reference signal or detection of the UE.
  • certain conditions for example, a layer of TP in the vicinity thereof cannot detect the uplink reference signal or detection of the UE.
  • the TP may be deleted from the first TP set; when a certain TP in the first TP set measures the uplink reference signal of the UE (or the uplink of the UE is measured) When the reference signal is above a certain threshold, a layer of TP around it may be added to the first TP set; when a certain TP in the first TP set measures the uplink reference signal of the UE and the signal strength is good enough ( That is, when the uplink reference signal of the UE is measured to be higher than the configured or set threshold, or the difference or absolute difference between the measured uplink reference signal of the UE and the measurement result or the average measurement result reported by the second TP set TP is one by one.
  • the TP may be added to the second TP set.
  • the RAN controller may pass the TP added to the second TP set through the following information or signaling.
  • the RAN controller determines that the UE works in a cell mode.
  • the RAN controller can determine that the UE is no longer suitable for working in the non-cell mode according to the measurement report reported by the first TP set. For example, the UE is about to move out of the range of the hyper cell, and the cell that the UE is about to enter is a normal cell. The working mode of the UE is switched to the cell working mode.
  • the RAN controller sends a non-cell release message to the UE by using the TP.
  • the non-cell release message can be used to indicate that the UE enters a cell mode.
  • the frequency and/or cell id of the serving cell in the cell release message is used to indicate the serving cell when the UE is in the cell mode.
  • the frequency and/or cell id may be a cell corresponding to one TP under the current second TP set.
  • the non-cell release message may indicate the frequency and cell id of the multiple serving cells.
  • one of the multiple serving cells may be the primary cell, and the other cells are the secondary cells, so that the UE may be in the cell mode. Carrier aggregation is performed.
  • the UE switches to the cell mode and communicates with the serving cell.
  • FIG. 4 is a schematic flowchart of a method applied to a super cell according to an embodiment of the present invention. It should be understood that FIG. 4 illustrates detailed communication steps or operations applied to the Hyper cell, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations in FIG. Moreover, the various steps in FIG. 4 may be performed in a different order than that presented in FIG. 4, and it is possible that not all operations in FIG. 4 are to be performed.
  • the RAN controller may delete or add a TP in the second TP set by using a message, such as a non-cell configuration message, where the message may carry the DUI of the UE, optionally, when deleting or adding the TP in the first TP set.
  • the RAN Controller knows, by using the signaling message, the TP in the first TP set that the UE is deleted or added by the network, such as sending the deleted or added TP information, or sending the deleted or added first TP set to include TP information.
  • the RAN controller may delete or add the TP in the first TP set by referring to the signal measurement indication message, and the message may carry the dedicated user equipment identifier of the UE.
  • the reference signal measurement indication message may further carry a configuration message of the uplink reference signal, and indicate a time-frequency resource of the uplink reference signal sent by the UE.
  • the uplink reference signal may be determined in the manner that the dedicated user equipment identifier of the UE and the time-frequency resource of the uplink reference signal are associated with the time-frequency resource of the uplink reference signal, which is not limited in this embodiment of the present invention.
  • FIG. 5 shows the location distribution of two super cells.
  • the UE belonging to the hyper cell 1 moves to the edge of the first super cell, it is also considered to enhance the UE at the hyper cell 1 boundary.
  • Mobility management Specifically, when the UE is in the overlapping area of the hyper cell 1 and the hyper cell 2 (the second super cell in FIG. 5), the hyper cell 2 (the TP in the middle cell) is considered to be an interference even if the uplink signal of the UE is detected.
  • the first DUI of the UE may collide with the DUI already allocated in the hyper cell 2, and second, even if there is no conflict, the first DUI is not allocated by the hyper cell 2, and the first DUI is used for the hyper cell 2. It is not legal, so the uplink SRS of the UE cannot be identified, that is, the UE cannot be identified in time, and the UE cannot be served in time.
  • hyper cell 1 and hyper cell 2 are respectively The UE allocates the DUI, that is, the UE simultaneously stores two sets of DUIs for unique identification in different hyper cells. For example, the UE uses the first DUI to perform downlink DMRS pattern mapping, DCI and PDCCH scrambling in the hyper cell 1, and uses the first DUI to perform uplink reference signal and UE data transmission in the hyper cell 1.
  • hyper cell 1 The UE may be uniquely identified based on the UE's uplink reference signal (eg, sequence, location, etc.) or the first DUI.
  • the UE performs DMRS pattern mapping, DCI transmission with the second DUI in the hyper cell 2,
  • the PDCCH is scrambling, and the second DUI is used for the uplink reference signal and the data transmission of the UE in the hyper cell 2.
  • the hyper cell 2 may be based on the UE's uplink reference signal (such as sequence, location, etc.) or the second DUI unique. Identify the UE.
  • hyper cell 1 in TP
  • hyper cell 2 middle cell
  • TP hyper cell 1
  • hyper cell 2 middle cell
  • TP can identify the UE through the SDUI
  • the SDUI can be used for downlink DMRS pattern mapping, DCI, PDCCH scrambling, uplink reference signal, UE data transmission, etc.
  • the side may uniquely identify the UE based on the UE's uplink reference signal (eg, sequence, location, etc.) or SDUI. Based on the SDUI, frequent allocation of DUIs can be avoided for UEs that frequently move in overlapping areas between two super cells.
  • the SDUI may be configured for the UE in advance, and when the UE is in an overlapping area, an uplink reference signal (such as SRS) is sent. , or tracking signalling, can be detected and identified by hyper cell 1 and hyper cell 2, respectively.
  • a hyper cell such as hyper cell 1 or hyper cell 2
  • SRS uplink reference signal
  • the SDUI can be a special DUI that can be shared by multiple hyper cells.
  • the SDUI can be confirmed by interaction between adjacent hyper cells, or by RAN controller and multiple hyper cells, or the SDUI can be configured by default in each hyper cell.
  • the RAN controller can notify multiple hyper cells.
  • the SDUI scrambled uplink data or the uplink reference signal is detected; when the activated UE receives the SDUI, the SDUI may use the SDUI to transmit and receive data in multiple hyper cells, and the uplink reference signal. send.
  • Mode 1 Broadcast notification + proprietary signaling notification.
  • the SDUI information is carried in the SIB, and the UE reads the SIB to obtain the ID list of the SDUI information. Since the UE has identified which IDs are SDUIs, when the network side sends the dedicated signaling, such as RRC signaling or paging message, When the UE configures the SDUI, it is not necessary to specify that the identifier configured for it is an SDUI that can be shared between hyper cells, and the UE can directly identify the SDUI (for example, the ID that the UE will receive is compared with the ID in the ID list received through the SIB. Yes, if a matching ID is found, the received ID is SDUI).
  • Mode 2 Proprietary signaling notification.
  • the SDUI may be carried in the dedicated signaling.
  • an indication may be added to the dedicated signaling to indicate that the carried identifier is the SDUI.
  • the type of proprietary signaling may be different.
  • the network side can directly carry the SDUI to the idle UE through paging, and configure the SDUI to the ECO UE by means of paging and/or RRC signaling.
  • an indication can be carried in the paging or RRC signaling at the same time.
  • the information is sent to the UE, indicating that the ID is the SDUI, so that the UE detects that the hyper cell changes in the idle or ECO state, does not trigger the hyper cell update signaling, and of course, the UE in the no cell state does not perceive the super cell.
  • the change that is, the UE does not actively initiate the update of the super cell
  • the update may be triggered by the network, and notify the UE to update it. In this case, since the UE does not actively initiate the update of the super cell, there is no need to notify the UE.
  • the ID is DUI or SDUI.
  • the network side can configure the SDUI to the active UE through RRC signaling, and carry the foregoing indication information.
  • the SDUI-based communication flow in the super cell will be described in detail.
  • FIG. 6 is a flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 6 illustrates a scenario in which the UE is powered on in an overlapping area of two hyper cells. It should be understood that the steps or operations depicted in FIG. 6 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 6 may be performed. Moreover, the various steps in FIG. 6 may be performed in a different order than that presented in FIG. 6, and it is possible that not all operations in FIG. 6 are to be performed.
  • the UE initiates an RRC connection establishment request, and may carry one or more of the following information in the request: capability information of the UE, statistics of a major active range in the near future (such as location, route, etc.), and historical hyper cell ID. Information, speed of the UE, location of the UE, detected signal condition of the neighboring cell, service information, and the like. These parameters may be parameters measured by the UE's Global Positioning System (GPS), or other means. .
  • GPS Global Positioning System
  • the RAN controller may determine that the UE works in a non-cell working mode based on the information of the UE, allocate a first TP set and a second TP set to the UE, and perform mobility management on the UE by updating the TP set.
  • the RAN controller may further determine that the UE is in an overlapping area of two hyper cells (hyper cell 1 and hyper cell 2) based on the information.
  • the RAN controller allocates an SDUI to the UE by using a non-cell configuration message.
  • FIG. 7 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 7 illustrates a process in which an active UE moves within an overlapping area of hyper cell 1 and hyper cell 2. It should be understood that the steps or operations depicted in FIG. 7 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 7 may be performed. Moreover, the various steps in FIG. 7 may be performed in a different order than that presented in FIG. 7, and it is possible that not all operations in FIG. 7 are to be performed.
  • the UE receives the no cell configuration message in the hyper cell 1 and receives the first DUI configured by the hyper cell 1.
  • the first DUI can uniquely identify the UE in the hyper cell 1, and the UE can use the first DUI. Data communication or transmission of an uplink reference signal.
  • the RAN controller receives the measurement report sent by the TP of the hyper cell 1 near the hyper cell 2, such as the signal strength, quality, path loss, signal to noise ratio, and signal to interference and noise ratio of the uplink reference signal, and determines that the UE may move to The overlapping area of hyper cell 1 and hyper cell 2.
  • the RAN controller indicates that some TPs of the hyper cell 2 detect the SRS signals sent by the SDUI, and the TPs in the hyper cell 2 may be selected by the RAN controller according to the location of the UE.
  • the hyper cell 1 and the hyper cell 2 may belong to the same RAN controller or may belong to different RAN controllers.
  • hyper cell 1 and hyper cell 2 belong to different RAN controllers (for example, hyper cell 1 belongs to RAN controller 1, and hyper cell 2 belongs to RAN controller 2)
  • SDUI information can be exchanged between two RAN controllers by RAN.
  • the controller 2 notifies the TP of the hyper cell 2, and the TPs of the hyper cell 2 are close to the TP of the hyper cell 2, so that the TP in the hyper cell 2 detects the uplink reference signal sent by the UE in time.
  • the TP of the overlapping area can be managed in multiple ways. For example, the two RAN controllers can be separately managed. After the interaction, the UE is separately notified.
  • the TP that starts to uniformly manage the overlap region by the RAN controller 1 includes the configuration of the first TP set and the second TP set of the UE, and the measurement result of the uplink reference signal of the TP to the UE. Reporting and so on.
  • the RAN controller 1 can find the ratio of the number of TPs in the hyper cell 2 or the total number of TPs according to the reported measurement result. When to switch control to the target RAN controller 2.
  • the RAN controller sends a non-cell configuration message to the UE by using the TP of the hyper cell 1, and the non-cell configuration message may carry the SDUI allocated to the UE.
  • the UE sends an uplink reference signal by using the SDUI.
  • the uplink reference signal is scrambled in whole or in part based on the SDUI.
  • the RAN controller receives the measurement report of the TP in the hyper cell 1 and the hyper cell 2.
  • the RAN controller allocates a second DUI to the UE by using a non-cell configuration message, where the second DUI is a DUI in the hyper cell 2, and is used to uniquely identify the UE in the hyper cell 2.
  • the RAN controller finds that the quality of the uplink reference signal corresponding to the SDUI in the measurement report reported by the hyper cell 1 is lower than a threshold, or the measurement result of the uplink reference signal related to the SDUI in the hyper cell 1 is not received.
  • a second DUI can be assigned to the UE.
  • the interaction process between the UE in the ECO state and the SDUI on the network side is similar to that in FIG. 7.
  • the ECO UE may not trigger the hyper cell update, and use the SDUI to send the uplink reference signal to the TPs in the two hyper cells.
  • the RAN controller may not send the SDUI to the UE in the overlapping area, and only send the normal second DUI, and the second DUI enables the hyper cell 2 to uniquely identify the UE.
  • the UE may simultaneously send the uplink reference signal by using the first DUI and the second DUI for TP identification by two hyper cells.
  • the SDUI may not be configured for the UE, and two sets of DUIs are configured for the UE, and one set is used in the hyper
  • the identified UE in cell 1 is used to identify the UE in hyper cell 2, which is described in detail below with reference to FIG. 8.
  • FIG. 8 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 8 illustrates a process in which an active UE moves in an overlapping area of hyper cell 1 (hyper cell belonging to RAN controller 1) and hyper cell 2 (hyper cell belonging to RAN controller 2).
  • hyper cell 1 hyper cell belonging to RAN controller 1
  • hyper cell 2 hyper cell belonging to RAN controller 2.
  • FIG. 8 illustrates a process in which an active UE moves in an overlapping area of hyper cell 1 (hyper cell belonging to RAN controller 1) and hyper cell 2 (hyper cell belonging to RAN controller 2).
  • the steps or operations depicted in FIG. 8 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 8 may be performed.
  • the various steps in FIG. 8 may be performed in a different order than that presented in FIG. 8, and it is possible that not all operations in FIG. 8 are to be performed.
  • hyper cell 1 and hyper cell 2 belong to the same RAN
  • the UE receives the no cell configuration message in the hyper cell 1 of the RAN controller 1, and receives the first DUI configured by the hyper cell 1.
  • the first DUI can uniquely identify the UE in the hyper cell 1, and the UE can The first DUI is used for data communication or transmission of an uplink reference signal.
  • the RAN controller 1 receives a measurement report sent by the TP of the hyper cell 1 near the hyper cell 2 of the RAN controller 2, such as the signal strength, quality, path loss, signal to noise ratio, and signal to interference and noise ratio of the uplink reference signal. It is determined that the UE may move to the overlapping area of hyper cell 1 and hyper cell 2.
  • the RAN controller 1 sends a resource configuration indication message to the RAN controller 2 to request allocation of resources.
  • the RAN controller 2 sends a resource configuration response message, and carries the second DUI.
  • the resource configuration response message may further carry uplink reference signal configuration information and/or a TA.
  • the RAN controller 1 forwards the resource configuration information in the configuration response message to the UE.
  • the RAN controller 1 sends a measurement request message to the RAN controller 2.
  • the measurement request message may include at least one of the following measurement configuration information: a measurement identifier, a measurement event name Weighing, measurement interval, measurement report reporting mode, measurement report reporting condition, measurement parameter, second DUI, uplink reference signal configuration, etc.
  • the RAN controller 2 determines a TP that needs to measure a reference signal (ie, the second reference signal in FIG. 8) sent by the UE.
  • the RAN controller 2 forwards the measurement configuration information in the measurement request message to the TP that needs to measure the reference signal sent by the UE, and each TP initiates the related measurement.
  • the measurement configuration information may carry the second DUI of the UE.
  • the RAN controller 2 receives the measurement report of each TP and forwards it to the RAN controller 1.
  • the second DUI can be carried in the measurement report.
  • the RAN controller 1 determines whether to update the TP set of the UE transmission data.
  • the RAN controller may perform at least one of updating the TP set for transmitting data for the UE by adding another TP as a TP set for transmitting data of the UE; deleting a certain TP in the TP set for transmitting data of the UE.
  • time information may be introduced in the measurement report for marking the time of recording the measurement result.
  • the RAN controller 2 can forward all the received measurement reports, and can also forward only a part of the measurement reports based on certain strategies, such as comparing the measurement results.
  • the RAN controller 1 notifies the UE to update the TP set for which data is transmitted.
  • the UE may be notified by the following information or signaling: downlink RRC signaling, L2, L1 signaling, and DCI.
  • the RAN controller 1 can also inform the RAN controller 2 that the TP set for transmitting data for the UE is updated.
  • the RAN controller 1 can also find the ratio of the number of TPs in the RAN controller 2 or the total number of TPs according to the subsequent report measurement report, and the RAN controller 1 decides when to switch the control to the RAN controller 2.
  • FIG. 9 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 9 relates to a complete process of switching and reestablishing between activated cells in a hyper cell, that is, how to switch the hyper cell and how to implement service continuity when the active UE moves from one hyper cell to another hyper cell.
  • the steps or operations depicted in FIG. 9 are merely examples, and that other operations of the present invention or variations of the various operations in FIG. 9 may be performed.
  • the various steps in FIG. 9 may be performed in a different order than that presented in FIG. 9, and it is possible that not all operations in FIG. 9 are to be performed.
  • FIG. 9 is an example in which the hyper cell 1 and the hyper cell 2 belong to the same RAN controller. If the scenario is a cross-RAN controller, the RAN controller can cooperate with each other and interact with each other.
  • Steps 902 to 906 are similar to steps 702 to 704 in FIG. 7, and are not described in detail herein.
  • the RAN controller determines, according to the measurement result reported by the multiple TPs, that the UE is about to move to the overlapping area of the hyper cell 1 and the hyper cell 2.
  • the RAN controller determines that the UE is about to move to the overlapping area.
  • the RAN controller determines that the UE is about to move to the overlapping area.
  • the RAN controller determines that the UE is about to move to the overlapping area.
  • the ratio of the number of measurement reports reported by the TP near the hyper cell 2 to the total number of TPs of the reported measurement report is greater than or equal to a preset threshold, the RAN controller determines that the UE is about to move to the overlapping area.
  • the RAN controller sends a reconfiguration message to the TP and the UE in the first super cell.
  • the SDUI assigned to the UE may be carried in the reconfiguration message.
  • the RAN controller sends a reference signal measurement indication message to the TP under the hyper cell 2, and indicates that the TP measures the uplink reference signal sent by the UE, where the message carries the time-frequency resource configuration of the SDUI and/or the uplink reference signal of the UE. It should be understood that the TPs receiving the SDUI in steps 910 and 920 may both be TPs in the first TP set of the UE.
  • the TP of the hyper cell 2 measures the uplink reference signal of the UE, and reports the measurement report to the RAN controller.
  • the RAN controller determines, according to the received measurement report, that the quality of the uplink reference signal of the UE measured by the TP under the hyper cell 2 is better than that of the TP of the hyper cell 1, for example, the TP reported by the hyper cell 2
  • the RAN controller recognizes that the UE is more suitable for data transmission under hyper cell 2 and decides to switch.
  • the RAN controller sends a new UE Enter Request message to the TP under hyper cell 2.
  • the TP in the hyper cell 2 replies with a new UE Enter Response message, indicating acceptance.
  • the RAN controller sends a handover command to the UE by using the TP under the hyper cell 1.
  • the handover command may carry an initial TA value, and is used for uplink synchronization with the TP in the hyper cell 2 when the UE accesses the new hyper cell 2.
  • a new DUI (second DUI) may also be provided to the UE, for example, if the TP of the first TP set of the UE that detects the uplink reference signal of the UE belongs to the hyper cell 2
  • the second DUI is allocated to the UE.
  • the UE After receiving the handover command, the UE sends an uplink reference signal to the TP in the hyper cell 2.
  • the RAN controller may update the first TP set and the second TP set of the UE according to the uplink reference signal sent by the UE, so that the UE is more suitable for receiving services under the hyper cell 2, and is more suitable for mobility management under the hyper cell 2. .
  • the RAN controller sends a reconfiguration message to the TP under the hyper cell 2.
  • the RAN controller finds that the TP reporting the uplink reference signal quality of the UE belongs to the hyper cell 2, the RAN controller sends the second DUI to the TP and the UE in the hyper cell 2 through the reconfiguration message (the second DUI may be in the hyper cell 2) The only one that identifies the UE) releases the SDUI.
  • FIG. 10 is a schematic flowchart of a communication method applied to a super cell according to an embodiment of the present invention.
  • FIG. 10 is a flow chart of switching and reestablishing between hyper cells of a UE in a power-saving state. The process of FIG. 10 is similar to the process of FIG. 9 except that the RAN controller performs information interaction with the UE through a paging message. To avoid repetition, it will not be detailed here.
  • the network When the UE applies the super cell working mode, the network is UE-centric for mobility management; in the existing radio access technology (RAT), such as GSM, UMTS, LTE, etc., mobility management is Network-centric.
  • RAT radio access technology
  • the UE When the UE is in the overlapping area of the super cell and the existing communication system, the UE needs to switch between two different RATs, and the switching manner between two different RATs needs to be considered.
  • Switching scenario 1 The process of switching and reestablishing the activated UE from the hyper cell to the existing communication system (ie, the mobility management is a network-centric communication system). For example, when an active UE moves from a hyper cell to an existing communication system, how to perform handover and how to achieve business continuity.
  • Switching scenario 2 The process of switching and reestablishing the activated UE from the existing communication system to the hyper cell. For example, when an active UE moves from an existing communication system to a hyper cell, how to perform handover and how to achieve business continuity.
  • Step A2 The UE receives the no cell configuration message in the hyper cell, and receives the first DUI configured by the hyper cell.
  • the first DUI can uniquely identify the UE in the hyper cell 1, and the UE can use the first DUI. Transmission of data communication or uplink reference signals.
  • Step A4 The RAN controller receives the measurement report sent by the edge TP in the hyper cell, such as the signal strength, quality, path loss, signal to noise ratio, and signal to interference and noise ratio of the uplink reference signal, and determines that the UE may move to the hyper cell and Overlapping areas of existing communication systems.
  • the measurement report sent by the edge TP in the hyper cell such as the signal strength, quality, path loss, signal to noise ratio, and signal to interference and noise ratio of the uplink reference signal.
  • Step A6 The RAN controller configures an Inter-RAT measurement command to the UE, and the Inter-RAT measurement command may include at least one of the following information: a RAT type, such as GSM, UMTS, LTE, CDMA, etc.; a measurement identifier; a measurement event name; Measurement parameters, such as signal quality, signal strength, etc.; measurement interval; measurement reporting conditions; measurement reporting methods, such as periodic reporting, event trigger reporting, etc.;
  • a RAT type such as GSM, UMTS, LTE, CDMA, etc.
  • Measurement parameters such as signal quality, signal strength, etc.
  • measurement interval measurement interval
  • measurement reporting conditions such as periodic reporting, event trigger reporting, etc.
  • Step A8 After receiving the foregoing Inter-RAT measurement command, the UE starts the measurement of the neighboring RAT according to the information, and reports the measurement result when the measurement reporting condition is met.
  • Step A10 The RAN controller receives an Inter-RAT measurement report of the UE.
  • Step A12 The RAN controller and the target RAT exchange information, and transparently transmit the handover configuration of the target RAT to the UE.
  • Step A14 The UE performs a handover configuration, and after completing the handover process, initiates a handover completion message on the target RAT.
  • Step B2 The existing communication system (hereinafter referred to as RAT 1) detects that the UE is located in the overlapping area of the RAT 1 and the super cell.
  • RAT 1 The existing communication system
  • Step B4 the RAT 1 and the RAN controller exchange the information, and receive a non-cell configuration (no cell configuration) message.
  • the non-cell configuration message may include at least one of the following information: a first DUI, the first DUI may be in the hyper cell 1
  • the UE uniquely identifies the UE; TA; the data transmission port number; the configuration of the uplink reference signal; and the RAT 1 transparently transmits the non-cell configuration information to the UE.
  • Step B6 The UE performs a handover configuration, and after completing the handover process, the UE sends an uplink reference signal in the hyper cell.
  • the communication method applied to the super cell according to an embodiment of the present invention is described in detail above with reference to FIGS. 1-10.
  • the controller, UE, and TP of the radio access network according to an embodiment of the present invention are described in detail below with reference to FIGS. 11-16.
  • FIG. 11 is a schematic structural diagram of a controller of a radio access network according to an embodiment of the present invention. It should be understood that the controller 1100 of the radio access network of FIG. 11 can implement the various steps performed by the controller of the radio access network in FIGS. 1 to 10, and the repeated description is omitted as appropriate for brevity.
  • the controller 1100 of the radio access network includes:
  • the determining unit 1110 is configured to determine that the user equipment UE is in an overlapping area of the first super cell and the second super cell, where the UE belongs to the first super cell, and the first super cell and the second super cell both include Multiple transmission points TP;
  • the sending unit 1120 is configured to send, after the determining unit 1110, that the UE is in the overlapping area, send a shared user equipment specific identifier SDUI to each of the UE and the first TP set, where the SDUI is used by
  • the TP in the first super cell and the TP in the second super cell jointly identify a location in the overlapping area a UE
  • the first TP set is a TP set allocated by the controller 1100 of the radio access network to the UE for measuring an uplink reference signal sent by the UE, where the first TP set includes the a TP in the first super cell and a TP in the second super cell;
  • the receiving unit 1130 is configured to receive a measurement report from each TP in the first TP set, where the measurement report of each TP is used to indicate the quality of the uplink reference signal detected by each TP;
  • the updating unit 1140 is configured to update the first TP set according to the measurement report of the TP in the first TP set received from the receiving unit 1130.
  • the sending unit 1120 is further configured to: before the UE moves to the overlapping area, the controller 1100 of the radio access network sends the UE and the third TP set Each TP sends a first dedicated user equipment identifier (DUI), the first DUI is used to identify the UE in the first super cell, and the TP in the third TP set is in the first super cell.
  • TP the TP in the third TP set is used to measure the uplink reference signal sent by the UE based on the first DUI; the determining unit 1110 is specifically configured to use the measurement report of the TP in the third TP set, It is determined that the UE is in the overlapping area.
  • DAI dedicated user equipment identifier
  • the updating unit 1140 is further configured to add a TP in the second super cell to the third TP set, and add a TP in the second super cell.
  • the third TP set is used as the first TP set.
  • the determining unit 1110 is further configured to: according to the measurement report of the TP in the first TP set, determine to switch the UE to the second super cell; the sending unit 1120 The method is further configured to send a handover command to the UE, where the handover command is used to instruct the UE to switch to the second super cell.
  • the handover command includes at least one of the following parameters: a time advance TA value and a second DUI, where the TA value is used in the UE and the second super cell.
  • the TP performs uplink synchronization
  • the second DUI is used to identify the UE in the second super cell.
  • the UE is an active UE
  • the sending unit 1120 is further configured to send the SDUI to a TP in a second TP set
  • the second TP set is the wireless
  • the controller 1100 of the access network allocates a TP set for the UE to perform data communication with the UE.
  • the update unit 1140 is further configured to update the location according to the measurement report of the TP in the first TP set.
  • the second TP set is used by the sending unit 1120, where the sending unit 1120 is specifically configured to send the SDUI to the UE by using a TP in the second TP set.
  • FIG. 12 is a schematic structural diagram of a UE according to an embodiment of the present invention. It should be understood that the UE 1200 of FIG. 12 can implement the various steps performed by the UE in FIGS. 1-10, and the repeated description is omitted as appropriate for brevity.
  • UE 1200 includes:
  • the receiving unit 1210 is configured to receive a shared user equipment-specific identifier SDUI sent by a controller of the radio access network, where the UE 1200 belongs to the first super cell, and the UE 1200 is in the first super cell and the second super cell.
  • the overlapping area, the first super cell and the second super cell each include a plurality of transmission points TP, and the SDUI is used by the TP in the first super cell and the TP in the second super cell Identifying the UE 1200 in the overlapping area;
  • the generating unit 1220 is configured to generate an uplink reference signal according to the SDUI received by the receiving unit 1210.
  • the sending unit 1230 is configured to send the uplink reference signal generated by the generating unit 1220, so that the controller of the radio access network updates the first TP set based on a measurement report of the TP in the first TP set.
  • the first TP set is allocated by the controller of the radio access network to the UE 1200 for measuring the UE 1200.
  • a TP set of the transmitted uplink reference signal the first TP set includes a TP in the first super cell and a TP in the second super cell, and a measurement report of each TP in the first TP set Used to indicate the quality of the uplink reference signal.
  • the receiving unit 1210 is further configured to: before the UE 1200 moves to the overlapping area, receive a first dedicated that is allocated by the controller of the radio access network to the UE 1200.
  • the user equipment identifies the DUI and the third TP set, where the first DUI is used to identify the UE 1200 in the first super cell, and the TP in the third TP set is all in the first super cell.
  • the sending unit 1230 is further configured to send an uplink reference signal according to the first DUI, so that the TP in the third TP set measures an uplink reference signal sent by the UE 1200.
  • the receiving unit 1210 is further configured to receive a handover command sent by a controller of the radio access network, where the handover command is used to instruct the UE 1200 to switch to the second super a cell, the handover command includes at least one of the following parameters: a time advance TA value and a second DUI, where the TA value is used for uplink synchronization between the UE 1200 and a TP in the second super cell, The second DUI is used to identify the UE 1200 in the second super cell.
  • the UE 1200 is an active UE, and the UE 1200 further includes: a data communication unit, configured to perform data communication with the TP in the second TP set according to the SDUI,
  • the second TP set is a TP set allocated by the controller of the radio access network to the UE 1200 for data communication with the UE 1200.
  • FIG. 13 is a schematic structural diagram of a TP according to an embodiment of the present invention. It should be understood that the TP 1300 of FIG. 13 can implement the various steps performed by the TP in FIGS. 1-10, and the repeated description is omitted as appropriate for the sake of brevity.
  • the TP 1300 includes:
  • the receiving unit 1310 is configured to receive, by the controller of the radio access network, the shared user equipment-specific identifier SDUI of the UE, where the UE belongs to the first super cell, and the UE is in the first super cell and the second super
  • the overlapping area of the cell, the first super cell and the second super cell each include multiple TPs, and the SDUI is used for common identification of the TP in the first super cell and the TP in the second super cell.
  • the UE in the overlapping area, the first TP set is a TP set allocated by the controller of the radio access network to the UE for measuring an uplink reference signal sent by the UE, where the a TP set includes a TP in the first super cell and a TP in the second super cell;
  • the measuring unit 1320 is configured to measure, according to the SDUI received by the receiving unit, an uplink reference signal sent by the UE;
  • the sending unit 1330 is configured to send, according to the measurement of the uplink reference signal by the measuring unit 1320, a measurement report indicating a quality of the uplink reference signal to the controller of the radio access network, so that the wireless The controller of the access network updates the first set of TPs according to the measurement report.
  • the receiving unit 1310 is further configured to receive first indication information that is sent by a controller of the radio access network, where the first indication information is used to indicate the radio access network.
  • the target TP 1300 further includes: a stopping unit, configured to stop measuring after the receiving unit receives the first indication information The uplink reference signal sent by the UE.
  • the receiving unit is further configured to receive second indication information from a controller of the radio access network, where the second indication information is used to indicate a controller of the radio access network.
  • the target TP 1300 further includes: a data communication unit, configured to perform data with the UE after the receiving unit receives the second indication information Communication.
  • the receiving unit is further configured to receive third indication information from a controller of the radio access network, where the third indication information is used to indicate a controller of the radio access network.
  • the target TP 1300 is deleted from the second TP set.
  • FIG. 14 is a schematic structural diagram of a controller of a radio access network according to an embodiment of the present invention. It should be understood that the controller 1400 of the radio access network of FIG. 14 can implement the various steps performed by the controller of the radio access network in FIGS. 1 through 10, and the repeated description is omitted as appropriate for brevity.
  • the controller 1400 of the radio access network includes:
  • a memory 1410 configured to store a program
  • the processor 1420 is configured to execute a program, when the program is executed, the processor 1420 determines that the user equipment UE is in an overlapping area of the first super cell and the second super cell, where the UE belongs to the first super cell
  • the first super cell and the second super cell each include multiple transmission points TP;
  • the transceiver 1430 is configured to: after the processor 1420 determines that the UE is in the overlapping area, send a shared user equipment specific identifier SDUI to each of the UE and the first TP set, where the SDUI is used by The TP in the first super cell and the TP in the second super cell jointly identify the UE in the overlapping area, and the first TP set is a controller 1400 of the radio access network.
  • a TP set allocated by the UE for measuring an uplink reference signal sent by the UE where the first TP set includes a TP in the first super cell and a TP in the second super cell;
  • Each TP in a TP set receives a measurement report, and the measurement report of each TP is used to indicate the quality of the uplink reference signal detected by each TP;
  • the processor 1420 is further configured to update the first TP set according to a measurement report of a TP in the first TP set received from the transceiver 1430.
  • the transceiver 1430 is further configured to: before the UE moves to the overlapping area, the controller 1400 of the radio access network is in the UE and the third TP set.
  • Each TP sends a first dedicated user equipment identifier (DUI), the first DUI is used to identify the UE in the first super cell, and the TP in the third TP set is in the first super cell.
  • TP the TP in the third TP set is used to measure an uplink reference signal sent by the UE based on the first DUI;
  • the processor 1420 is specifically configured to use, according to the measurement report of the TP in the third TP set, It is determined that the UE is in the overlapping area.
  • DAI dedicated user equipment identifier
  • the processor 1420 is further configured to add a TP in the second super cell to the third TP set, and add a TP in the second super cell.
  • the third TP set is used as the first TP set.
  • the processor 1420 is further configured to: according to the measurement report of the TP in the first TP set, determine to switch the UE to the second super cell; the transceiver 1430 The method is further configured to send a handover command to the UE, where the handover command is used to instruct the UE to switch to the second super cell.
  • the handover command includes at least one of the following parameters: a time advance TA value and a second DUI, where the TA value is used in the UE and the second super cell.
  • the TP performs uplink synchronization
  • the second DUI is used to identify the UE in the second super cell.
  • the UE is an active UE
  • the transceiver 1430 is further configured to send the SDUI to a TP in a second TP set, where the second TP set is the wireless
  • the controller 1400 of the access network is a TP set allocated by the UE for data communication with the UE; the processor 1420 is further configured to update the location according to the measurement report of the TP in the first TP set.
  • the second TP set is used; the transceiver 1430 is specifically configured to send the SDUI to the UE by using a TP in the second TP set.
  • FIG. 15 is a schematic structural diagram of a UE according to an embodiment of the present invention. It should be understood that the UE 1500 of FIG. 15 can implement the various steps performed by the UE in FIGS. 1-10, and the repeated description is omitted as appropriate for brevity.
  • the UE 1500 includes:
  • a memory 1510 configured to store a program
  • the transceiver 1520 is configured to receive a shared user equipment-specific identifier SDUI sent by a controller of the radio access network, where the UE 1500 belongs to the first super cell, and the UE 1500 is in the first super cell and the second super cell.
  • the overlapping area, the first super cell and the second super cell each include a plurality of transmission points TP, and the SDUI is used by the TP in the first super cell and the TP in the second super cell Identifying the UE 1500 in the overlapping area;
  • the processor 1530 is configured to generate an uplink reference signal according to the SDUI received by the transceiver 1520.
  • the transceiver 1520 is further configured to send the uplink reference signal generated by the processor 1530, so that the controller of the radio access network updates the first TP based on a measurement report of the TP in the first TP set.
  • the first TP set is a TP set allocated by the controller of the radio access network to the UE 1500 for measuring an uplink reference signal sent by the UE 1500, where the first TP set includes the The TP in the first super cell and the TP in the second super cell, the measurement report of each TP in the first TP set is used to indicate the quality of the uplink reference signal.
  • the transceiver 1520 is further configured to receive, before the UE 1500 moves to the overlapping area, a first dedicated that is allocated by the controller of the radio access network to the UE 1500.
  • the user equipment identifies the DUI and the third TP set, where the first DUI is used to identify the UE 1500 in the first super cell, and the TP in the third TP set is all in the first super cell.
  • the transceiver 1520 is further configured to send an uplink reference signal according to the first DUI, so that the TP in the third TP set measures an uplink reference signal sent by the UE 1500.
  • the transceiver 1520 is further configured to receive a handover command sent by a controller of the radio access network, where the handover command is used to instruct the UE 1500 to switch to the second super a cell, the handover command includes at least one of the following parameters: a time advance TA value and a second DUI, where the TA value is used for uplink synchronization between the UE 1500 and a TP in the second super cell, The second DUI is used to identify the UE 1500 in the second super cell.
  • the UE 1500 is a UE in an active state
  • the transceiver 1520 is further configured to perform data communication with a TP in a second TP set according to the SDUI, where the second TP is used.
  • the set is a set of TPs allocated by the controller of the radio access network for the UE 1500 for data communication with the UE 1500.
  • FIG. 16 is a schematic structural diagram of a TP according to an embodiment of the present invention. It should be understood that the TP 1600 of FIG. 16 can implement the various steps performed by the TP in FIGS. 1-10, and the repeated description is omitted as appropriate for the sake of brevity.
  • TP 1600 includes:
  • a memory 1610 configured to store a program
  • the transceiver 1620 is configured to receive, by using a controller of the radio access network, the shared user equipment-specific identifier of the UE.
  • the SDUI the UE belongs to the first super cell, and the UE is in an overlapping area of the first super cell and the second super cell, and the first super cell and the second super cell each include multiple TPs.
  • the SDUI is used by the TP in the first super cell and the TP in the second super cell to jointly identify the UE in the overlapping area, where the first TP set is the radio access network.
  • the processor 1630 is configured to measure, according to the SDUI received by the transceiver 1620, an uplink reference signal sent by the UE.
  • the transceiver 1620 is further configured to send, according to the measurement of the uplink reference signal by the processor 1630, a measurement report for indicating a quality of the uplink reference signal to a controller of the radio access network, so that The controller of the radio access network updates the first TP set according to the measurement report.
  • the transceiver 1620 is further configured to receive first indication information that is sent by a controller of the radio access network, where the first indication information is used to indicate the radio access network.
  • the controller deletes the target TP 1600 from the first TP set;
  • the processor 1630 is further configured to stop measuring the uplink reference sent by the UE after the transceiver 1620 receives the first indication information. signal.
  • the transceiver 1620 is further configured to receive second indication information from a controller of the radio access network, where the second indication information is used to indicate control of the radio access network. Adding the target TP 1600 to the second TP set; and performing data communication with the UE after the receiving unit receives the second indication information.
  • the transceiver 1620 is further configured to receive third indication information from a controller of the radio access network, where the third indication information is used to indicate control of the radio access network.
  • the target TP 1600 is deleted from the second TP set.
  • the 17 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1700 of FIG. 17 includes an input interface 1710, an output interface 1720, at least one processor 1730, and a memory 1740.
  • the input interface 1710, the output interface 1720, the processor 1730, and the memory 1740 are connected by a bus.
  • the processor 1730 is configured to execute code in the memory 1740, and when the code is executed, the processor 1730 implements the method of Figure 1-10 performed by a controller of a wireless access network.
  • FIG. 18 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1800 of FIG. 18 includes an input interface 1810, an output interface 1820, at least one processor 1830, and a memory 1840.
  • the input interface 1810, the output interface 1820, the processor 1830, and the memory 1840 are connected by a bus.
  • the processor 1830 is configured to execute code in the memory 1840, and when the code is executed, the processor 1830 implements the method performed by the UE in FIGS. 1-10.
  • FIG. 19 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1900 of FIG. 19 includes an input interface 1910, an output interface 1920, at least one processor 1930, and a memory 1940.
  • the input interface 1910, the output interface 1920, the processor 1930, and the memory 1940 are connected by a bus.
  • the processor 1930 is configured to execute code in the memory 1940, and when the code is executed, the processor 1930 implements the method performed by the TP in FIGS. 1-10.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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

Abstract

Des modes de réalisation de la présente invention concernent un procédé et un appareil de communication appliqués à une supercellule. Le procédé comprend les étapes suivantes consistant : lorsqu'un équipement utilisateur est situé dans une région couverte entre des supercellules, à attribuer à l'UE un identifiant d'UE partagé entre les supercellules. De cette manière, des TP dans les supercellules peuvent toutes mesurer des signaux de référence envoyés par l'UE, ce qui simplifie la gestion de mobilité de l'UE dans la région couverte entre les supercellules.
PCT/CN2017/075285 2016-03-03 2017-03-01 Procédé et appareil de communication appliqués à une supercellule Ceased WO2017148379A1 (fr)

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CN110035567B (zh) * 2018-01-11 2021-05-28 维沃移动通信有限公司 一种参考信号的测量方法和用户终端
WO2021022489A1 (fr) * 2019-08-06 2021-02-11 Oppo广东移动通信有限公司 Procédé de commande de transfert intercellulaire, appareil, dispositif, et support de stockage

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