CN107155189B

CN107155189B - Communication method and device applied to super cell

Info

Publication number: CN107155189B
Application number: CN201610120943.7A
Authority: CN
Inventors: 耿婷婷; 蔡西蕾; 张宏平; 曾清海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-03-03
Filing date: 2016-03-03
Publication date: 2021-02-12
Anticipated expiration: 2036-03-03
Also published as: WO2017148379A1; CN107155189A

Abstract

The embodiment of the invention provides a communication method and a device applied to a super cell, wherein the method comprises the following steps: when the user equipment is in an overlapping area between super cells, the UE identification shared between the super cells is distributed for the UE, so that the TP in each super cell can measure the reference signal sent by the UE, and the mobility management of the UE in the overlapping area between the super cells is simplified.

Description

Communication method and device applied to super cell

Technical Field

The present invention relates to the field of communications, and in particular, to a communication method and apparatus applied to a super cell.

Background

In the prior art, in order to ensure continuity of a User Equipment (UE) service, mobility management needs to be performed on the UE. For example, when the UE moves from the coverage of the source cell to the coverage of the target cell, handover between cells needs to be completed in time.

In the existing communication system, the design idea of mobility management is a network-centric design idea (UE mobility network). Taking UE in connected state as an example, in order to implement mobility management of the UE, each cell in the network may send 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, and the network performs switching judgment based on the measurement report of the UE and switches the UE to a cell with good signal conditions for data transmission.

However, in the subsequent evolution process of the mobile communication system, in order to meet a huge amount of data communication demands, a large number of small cells (small cells) may be centrally deployed in a hot spot area, and if a network-centric design concept is continuously adopted, a problem of difficulty in mobility management of the UE may be caused. For example, in a hot spot area, the UE needs to measure a large number of small cells, and the requirement on the measurement capability of the UE is high; for another example, the UE may perform handover after performing measurement and reporting a measurement report, and since the coverage area of the small cell is small, the UE may quickly move out of the coverage area of the small cell, which may cause handover failure in time due to insufficient handover, for example, failure in sending the measurement report to the small cell, failure in sending the handover command, and the like. For another 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, which consumes a large amount of air interface resources and processing resources of the network.

Disclosure of Invention

The application provides a communication method, a radio access network controller, user equipment and a transmission point applied to a super cell, so as to solve the problem that mobility management in a hot spot area is difficult.

In a first aspect, a communication method applied to a super cell is provided. The method comprises the following steps: a controller of the radio access network determines 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 both include a plurality of Transmission Points (TPs). A controller of the radio access network sends a Shared Dedicated User Equipment Identity (SDUI) to the UE and each TP of the first set of TPs, the SDUI for the TPs in the first super-cell and the TPs in the second super-cell to collectively identify the UE in the overlapping region. The first set of TPs is a set of TPs allocated by a controller of the radio access network for the UE to measure uplink reference signals transmitted by the UE, and the first set of TPs includes TPs in the first super cell and TPs in the second super cell. A controller of the radio access network receives a measurement report from each TP in the first set of TPs, the measurement report for each TP indicating a quality of the uplink reference signal detected by the each TP. A controller of the radio access network updates the first set of TPs according to measurement reports for TPs in the first set of TPs.

It should be understood that the UE belonging to the first super cell may refer to: the UE is located within the coverage of the first super cell and is primarily provided data or communication services by the TPs in the first super cell. For example, the UE may maintain a Radio Resource Control (RRC) connection with a certain TP in the first super cell.

By allocating the SDUI to the UE in the overlapping area of the first super cell and the second super cell, mobility management of the UE in the overlapping area between the super cells is simplified.

With reference to the first aspect, in a first implementation manner of the first aspect, the method further includes: before the UE moves to the overlapping region, a controller of the radio access network transmitting a first Dedicated User Equipment Identity (DUI) to the UE and each TP in a third set of TPs, the first DUI being used to identify the UE in the first super cell, the TPs in the third set of TPs being TPs in the first super cell, the TPs in the third set of TPs measuring uplink reference signals transmitted by the UE based on the first DUI; the method for determining that the UE is in the overlapping area of the first super cell and the second super cell includes the following steps: a controller of the radio access network determines that the UE is in the overlapping region according to measurement reports of TPs in the third set of TPs.

The controller of the radio access network can conveniently determine whether the UE is in the overlapping region by analyzing the measurement reports of the TPs in the third set of TPs.

Optionally, as an implementation manner, the determining, by the controller of the radio access network, that the UE is in the overlap area according to the measurement report of the TP in the third set of TPs may include: selecting, by the controller of the radio access network, measurement reports of the TPs close to the second super cell from the measurement reports of the third set of TPs; determining, by a controller of the radio access network, that the UE is in the overlapping area when the number of measurement reports for TPs near the second super cell is greater than a preset threshold.

With reference to the first aspect or the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the method further includes: a controller of the radio access network adds the TPs in the second super cell to the third set of TPs, and takes the third set of TPs to which the TPs in the second super cell are added as the first set of TPs.

With reference to the first aspect and any one of the first to second implementation manners of the first aspect, in a third implementation manner of the first aspect, the method further includes: a controller of the radio access network determines to handover the UE to the second super cell according to a measurement report of a TP in the first set of TPs; and the controller of the radio access network sends a switching command to the UE, wherein the switching command is used for indicating the UE to be switched to the second super cell.

Optionally, as an implementation manner, the determining, by the controller of the radio access network, to handover the UE to the second super cell according to the measurement report of the TP in the first set of TPs includes: the controller of the radio access network selects a measurement report of the TP of a first super cell and a measurement report of the TP of a second super cell from the measurement reports of the TPs in the first TP set respectively; a controller of the radio access network determines to handover the UE to the second super cell when an average quality of uplink reference signals indicated by the measurement report of the TP of the second super cell is higher than an average quality of uplink reference signals indicated by the measurement report of the TP of the first super cell.

The controller of the radio access network can conveniently determine the switching time of the UE between the super cells by analyzing the measurement report of the TP in the first TP set.

With reference to the first aspect or any one of the first to third implementation manners of the first aspect, in a fourth implementation manner of the first aspect, the UE is an active UE, and the method further includes: the controller of the radio access network sending the SDUI to a TP in a second set of TPs, the second set of TPs being a set of TPs allocated by the controller of the radio access network for the UE to communicate data with the UE; the controller of the radio access network updates the second set of TPs according to measurement reports for TPs in the first set of TPs.

Because the measurement report of the TP in the first TP set indicates the quality of the uplink reference signal sent by the UE measured by each TP in the first TP set, the controller of the radio access network can conveniently update the second TP set providing the data communication service for the UE by analyzing the measurement report of each TP in the first TP set, for example, select the TP with the better quality of the uplink reference signal of the UE from the first TP set to provide the data communication service for the UE, thereby ensuring the continuity of the UE service.

With reference to the fourth implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the sending, by a controller of the radio access network, an SDUI to the UE includes: a controller of the radio access network sends the SDUI to the UE through the TPs of the second set of TPs.

With reference to the first aspect and any one of the first to third implementation manners of the first aspect, in a sixth implementation manner of the first aspect, the sending, by the controller of the radio access network, the SDUI to the UE includes: and the controller of the radio access network sends the SDUI to the UE through a paging message.

With reference to the first aspect and any one of the first to sixth implementation manners of the first aspect, in a seventh implementation manner of the first aspect, the updating, by the controller of the radio access network, the first set of TPs according to measurement reports of TPs in the first set of TPs may include: and the controller of the radio access network deletes the TP in the first TP set and/or adds the TP to the first TP set according to the measurement report of the TP of the first TP set. For example, a measurement report of a certain TP in the first TP set indicates that the TP cannot 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, the controller of the radio access network may delete the TP from the first TP set; for another 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 the preset threshold, and TPs around the TP may also be added to the first TP set. Updating, by a controller of the radio access network, the second set of TPs according to measurement reports for TPs in the first set of TPs may include: and the controller of the radio access network deletes the TP in the second TP set and/or adds the TP to the second TP set according to the measurement report of the TP of the first TP set. For example, a measurement report of a certain TP in the first TP set indicates that the TP cannot 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, the controller of the radio access network may delete the TP from the second TP set; for another example, the measurement report of a certain TP in the first TP set indicates that the uplink reference signal quality of the UE detected by the TP is greater than the preset threshold, and TPs around the TP may also be added to the second TP set.

By analyzing the measurement reports of the TPs in the first set of TPs, a controller of the radio access network can conveniently update and maintain the first set of TPs and the second set of TPs.

With reference to the first aspect and any one of the first to seventh implementation manners of the first aspect, in an eighth implementation manner of the first aspect, the controller of the radio access network is a controller of a first radio access network, the first super cell is a controller of the first radio access network, the second super cell belongs to a controller of a second radio access network, and before the controller of the radio access network sends an SDUI to the UE and a TP of the first set of TPs of the UE, the method may further include: the controller of the first radio access network negotiates with the controller of the second radio access network to determine a first set of TPs for the UE. Further, the transmitting, by the controller of the radio access network, the SDUI to the UE and the TPs in the first set of TPs of the UE may include: a controller of the first radio access network sends the SDUI to the TPs in the first set of TPs belonging to the first super cell; and the controller of the first radio access network sends the SDUI to the TP belonging to the second super cell in the first TP set through the controller of the second radio access network.

In a second aspect, a communication method applied to a super cell is provided. The method comprises the following steps: the method comprises the steps that UE receives an SDUI sent by a controller of a radio access network, the UE belongs to a first super cell and is located in an overlapping area of the first super cell and a second super cell, the first super cell and the second super cell both comprise a plurality of TPs, and the SDUI is used for identifying the UE located in the overlapping area by the TPs in the first super cell and the TPs in the second super cell; the UE generates an uplink reference signal according to the SDUI; the UE sends the uplink reference signal, so that a controller of the radio access network updates the first TP set based on a measurement report of a TP in a first TP set, wherein the first TP set is a TP set which is allocated to the UE by the controller of the radio access network and used for measuring the uplink reference signal sent by the UE, the first TP set comprises the TP in the first super cell and the TP in the second super cell, and the measurement report of each TP in the first TP set is used for indicating the quality of the uplink reference signal.

Optionally, as an implementation manner, the generating, by the UE, the uplink reference signal according to the SDUI may include: the UE generates the uplink reference signal scrambled by the SDUI; or the UE sends the uplink reference signal corresponding to the SDUI to the network side (the corresponding relationship between the SDUI and the uplink reference signal may be pre-established).

With reference to the second aspect, in a first implementation manner of the second aspect, the method further includes: before the UE moves to the overlapping area, the UE receives a first private user equipment identity (DUI) and a third set of TPs allocated to the UE by a controller of the radio access network, wherein the first DUI is used for identifying the UE in the first super cell, and the TPs in the third set of TPs are all TPs in the first super cell; and the UE sends an uplink reference signal according to the first DUI so that the TP in the third TP set can measure the uplink reference signal sent by the UE. Optionally, as an implementation manner, the sending, by the UE, the uplink reference signal according to the first DUI may include: the UE sends the uplink reference signal scrambled by the first DUI to a network side; or, the UE sends an uplink reference signal corresponding to the first DUI to a network side (a corresponding relationship between the first DUI and the uplink reference signal may be pre-established).

A controller of a wireless access network allocates a first DUI for UE in a first super cell and maintains a third TP set for the UE, the TP in the third TP set measures an uplink reference signal sent by the UE, and the UE does not need to measure a downlink reference signal sent by a network side like the prior art, so that the design complexity of the UE is simplified, and the mobility management of the UE is facilitated.

With reference to the second aspect or the first implementation manner of the second aspect, in a second implementation manner of the second aspect, the method further includes: and the UE receives a switching command sent by a controller of the radio access network, wherein the switching command is used for indicating the UE to be switched to the second super cell.

With reference to the second aspect and any one of the first to second implementation manners of the second aspect, in a third implementation manner of the second aspect, the UE is an active UE, and the method further includes: and the UE carries out data communication with the TPs in a second TP set according to the SDUI, wherein the second TP set is the TP set which is distributed for the UE by a controller of the wireless access network and is used for carrying out data communication with the UE. Optionally, as an embodiment, the UE performs data communication with a TP in the second set of TPs according to the SDUI, including: and when the UE carries out data communication with the TPs in the second TP set, scrambling data by using the SDUI. Or, the UE performs data communication with the TP in the second TP set in the time-frequency resource corresponding to the SDUI (a corresponding relationship between the SDUI and the time-frequency resource may be pre-established).

And a controller of the radio access network configures and maintains a second TP set for the UE in the overlapping area of the first super cell and the second super cell, so that the data communication requirement of the UE in the overlapping area is ensured, and the mobility management of the UE in the overlapping area is realized.

With reference to the third implementation manner of the second aspect, in a fourth implementation manner of the second aspect, the receiving, by the UE, the SDUI sent by a controller of a radio access network includes: and the UE receives the SDUI sent by the UE through the TP in the second TP set.

With reference to the second aspect and any one of the first to second implementation manners of the second aspect, in a fifth implementation manner of the second aspect, the UE is a UE in a power saving state, and the UE receives an SDUI sent by a controller of a radio access network, and the method includes: and the UE receives the SDUI sent by the wireless network controller through a paging message.

In a third aspect, a communication method applied to a super cell is provided, including: receiving, by any target TP in a first set of TPs, a shared user equipment-specific identity (SDUI) of the UE from a controller of a radio access network, the UE belonging to a first super cell and being in an overlapping region of the first super cell and a second super cell, the first super cell and the second super cell each including a plurality of TPs, the SDUI being used for the TPs in the first super cell and the TPs in the second super cell to jointly identify the UE in the overlapping region, the first set of TPs being a set of TPs allocated by the controller of the radio access network for the UE to measure uplink reference signals transmitted by the UE, the first set of TPs including the TPs in the first super cell and the TPs in the second super cell; the target TP measures an uplink reference signal sent by the UE according to the SDUI; and the target TP sends a measurement report used for indicating the quality of the uplink reference signal to a controller of the wireless access network, so that the controller of the wireless access network updates the first TP set according to the measurement report. Optionally, as an implementation manner, the measuring, by the target TP, the uplink reference signal sent by the UE according to the SDUI may include: and the target TP measures the uplink reference signal descrambled by using the SDUI. Or, the target TP receives the uplink reference signal from the time-frequency resource corresponding to the SDUI (a corresponding relationship between the SDUI and the time-frequency resource may be pre-established); and the target TP measures the uplink reference signal received by the time frequency resource.

With reference to the third aspect, in a first implementation manner of the third aspect, the method further includes: the target TP receives first indication information sent by a controller of the radio access network, wherein the first indication information is used for indicating the controller of the radio access network to delete the target TP from the first TP set; and the target TP stops measuring the uplink reference signal sent by the UE.

With reference to the third aspect or the first implementation manner of the third aspect, in a second implementation manner of the third aspect, the method further includes: the target TP receiving second indication information from a controller of the radio access network, the second indication information being used for indicating the controller of the radio access network to add the target TP to the second TP set; the target TP is in data communication with the UE.

With reference to the second implementation manner of the third aspect, in a third implementation manner of the third aspect, the method further includes: the target TP receives third indication information from a controller of the radio access network, the third indication information being used for indicating the controller of the radio access network to delete the target TP from the second TP set.

In a fourth aspect, there is provided a controller of a radio access network comprising means for performing the method of the first aspect.

In a fifth aspect, a UE is provided, which comprises means for performing the method of the second aspect.

In a sixth aspect, a TP is provided that includes means for performing the method of the third aspect.

In a seventh aspect, a controller of a radio access network is provided that includes a memory, a processor, and a transceiver. The memory is configured to store a program, the processor is configured to execute the program, and the transceiver is configured to communicate with a TP in a super cell. When the program is executed, the processor performs the method of the first aspect.

In an eighth aspect, a UE is provided that includes a memory, a processor, and a transceiver. The memory is configured to store a program, the processor is configured to execute the program, and the transceiver is configured to communicate with a TP in the super cell. The processor is adapted to perform the method of the second aspect when the program is executed.

In a ninth aspect, a TP is provided that includes a memory, a processor, and a transceiver. The memory is configured to store a program and the processor is configured to execute the program, and the transceiver is configured to communicate with a UE in the super cell and a controller of a radio access network. The processor is adapted to perform the method of the third aspect when the program is executed.

In a tenth aspect, there is provided a communication system comprising the controller of the radio access network according to the fourth aspect, the UE according to the fifth aspect, and the TP according to the sixth aspect.

In an eleventh aspect, there is provided a communication system comprising the controller of the radio access network according to the fourth aspect, and the TP according to the sixth aspect.

In a twelfth aspect, there is provided a communication system comprising the controller of the radio access network according to the seventh aspect, the UE according to the eighth aspect, and the TP according to the ninth aspect.

In a thirteenth aspect, there is provided a communication system applied to a super cell, including the controller of the radio access network according to the seventh aspect, and the TP according to the ninth aspect.

In a fourteenth aspect, a system chip is provided, which includes 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 via a bus, and the processor is configured to execute codes in the memory, and when the codes are executed, the processor implements the method in the first aspect.

In a fifteenth aspect, a system chip is provided, which includes 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 via a bus, and the processor is configured to execute code in the memory, and when the code is executed, the processor implements the method in the second aspect.

In a sixteenth aspect, a system chip is provided, which includes 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 via a bus, and the processor is configured to execute codes in the memory, and when the codes are executed, the processor implements the method in the third aspect.

A seventeenth aspect provides a computer readable medium storing program code for execution by a controller of a radio access network, the program code comprising instructions for performing the method of the first aspect.

In an eighteenth aspect, a computer readable medium is provided, storing program code for execution by a UE, the program code comprising instructions for performing the method of the second aspect.

In a nineteenth aspect, a computer readable medium is provided, the computer readable medium storing program code for TP execution, the program code comprising instructions for performing the method of the third aspect.

In some implementations, the network side may refer to an access network side, and may include the TP and a controller of a radio access network, and the like.

In some implementations, the handover command may include at least one of the following parameters: a Timing Advance (TA) value and a second DUI, wherein the TA value may be used for uplink synchronization of the UE with a TP in the second super cell, and the second DUI may be used to identify the UE in the second super cell.

In some implementation manners, the working mode of the UE is a non-cell working mode, and in the non-cell working mode, the network side performs mobility management on the UE by measuring an uplink reference signal sent by the UE.

In some implementations, the UE further supports a cell operating mode, and in the cell mode, the network side performs mobility management on the UE based on measurement of a downlink reference signal sent by the UE to the network side.

In some implementations, the UE-supported non-cell operating mode may also be referred to as a non-normal cell operating mode or a super-cell operating mode, and the UE-supported cell operating mode may also be referred to as a normal cell (normal cell) operating mode. In the normal cell working mode, the network side can perform mobility management on the UE through switching of a serving cell of the UE, and in the super cell working mode, the network side performs mobility management on the UE based on a TP set (a first TP set and/or a second TP set) of the UE in the super cell.

In some implementations, the first set of TPs can be referred to as a measurement cluster for the UE and the second set of TPs can be referred to as a transmission cluster for the UE. Alternatively, the second set of TPs may be a subset of the first set of TPs. Optionally, a controller of the radio access network may maintain a first TP set and a second TP set for an active UE belonging to a super cell, where the first TP set is used for measuring an uplink reference signal sent by the UE, and the second TP set is used for performing 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 transmitted by the UE measured by the TPs in the first TP set, so that mobility management of the UE may be achieved.

In some implementations, the TPs in the second set of TPs are all TPs in the first super-cell.

In some implementations, a super cell may be a cell that includes multiple TPs, or alternatively, a super cell may be a cell that includes multiple cells (normal cells, or small cells).

In some implementations, an update of a first set of TPs can refer to an update of a member of the first set of TPs; alternatively, the update of the first set of TPs may refer to at least one of: and deleting the TP in the first TP set, and adding the TP to the first TP set. Similarly, an update of a second set of TPs may refer to an update of a member of the second set of TPs; alternatively, the update of the second set of TPs may refer to at least one of: and deleting the TP in the second TP set, and adding the TP to the second TP set.

In certain implementations, the first DUI to identify the UE in the first super cell may refer to the first DUI to identify the UE for the TP in the first super cell. For example, in the first super cell, uplink and downlink data and uplink reference signals of the UE may be scrambled by the first DUI. The second DUI to identify the UE in the second super cell may refer to the second DUI to identify the UE for the TP in the second super cell. For example, in the second super cell, both uplink and downlink data and uplink reference signals of the UE may be scrambled by the second DUI. Further, the first DUI may uniquely identify the UE in the first super cell, and the second DUI may uniquely identify the UE in the second super cell. Specifically, 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.

In some implementations, the update of the second TP set may also be triggered by the UE, for example, the UE performs corresponding search measurement when the UE is idle, and when a TP meeting the condition is detected and the TP is not in the first TP set and/or the second TP set configured by the controller of the radio access network, the UE may report information of the TP, including information of the TP ID, the signal strength, and the like, to the controller of the radio access network; the controller of the radio access network can update the corresponding TP set according to the configuration principle.

According to the method and the device, the SDUI is distributed to the UE in the overlapping area of the first super cell and the second super cell, so that the mobility management of the overlapping area between the super cells is simplified.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of a scenario of a hyper cell according to an embodiment of the present invention.

Fig. 2 is a schematic flow chart of a communication method applied to a hyper cell according to an embodiment of the present invention.

Fig. 3 is an exemplary diagram of a TP set of a UE according to an embodiment of the present invention.

Fig. 4 is a schematic flow chart of a method applied to a super cell according to an embodiment of the present invention.

Fig. 5 is a diagram of a location distribution example 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 flow chart of a communication method applied to a super cell according to an embodiment of the present invention.

Fig. 8 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention.

Fig. 9 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention.

Fig. 10 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention.

Fig. 11 is a schematic configuration diagram of a controller of a radio access network of an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a UE of an embodiment of the present invention.

Fig. 13 is a schematic structural diagram of a TP of the embodiment of the present invention.

Fig. 14 is a schematic configuration diagram of a controller of a radio access network of an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a UE of an embodiment of the present invention.

Fig. 16 is a schematic structural diagram of a TP of the present embodiment.

Fig. 17 is a schematic configuration diagram of a system chip of the embodiment of the present invention.

Fig. 18 is a schematic configuration diagram of a system chip of the embodiment of the present invention.

Fig. 19 is a schematic configuration diagram of a system chip of the embodiment of the present invention.

Detailed Description

It should be understood that the solution of the present invention can be applied to various communication systems, such as: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-a) System, a Universal Mobile Telecommunications System (UMTS), 5G, and the like.

It should also be understood that, in the embodiment of the present invention, the User Equipment (UE) includes, but is not limited to, a Mobile Station (MS), a Mobile Terminal (MS), a Mobile phone (Mobile Telephone), a handset (handset), a portable device (portable Equipment), and the like, and the User Equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the User Equipment may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the User Equipment may also be a portable, pocket, handheld, built-in computer, or vehicle-mounted Mobile device.

As described above, the prior art adopts a network-centric design concept for mobility management of a UE, but the application of the design concept to a hot spot area where a large number of small cells are centrally deployed may cause a problem that mobility management of the UE is difficult. The embodiment of the invention introduces a concept of a super cell (also called a cell cluster), and provides a concept (network nodes UE) taking the UE as a center, namely, the UE is taken as the center to carry out mobility management, and the UE can be effectively subjected to mobility management in a hot spot area. It should be understood that mobility management for the UE may refer to management of location information, security and service continuity of the UE, in an effort to optimize the contact state between the UE and the network, thereby providing guarantees for applications of various network services. For example, tracking and recording location information of the UE in real time; along with the movement of the UE position, the network element providing service for the UE is switched to ensure that the UE service is not interrupted and the like.

As shown in fig. 1, a super cell may be configured with a super cell ID, and the super cell may include multiple TPs with the same frequency and/or different frequencies (optionally, as an embodiment, only 1 TP may be included in the super cell), or the super cell may include multiple cells (optionally, as an embodiment, only 1 cell may be included in the super cell). It is understood that the IDs of the TPs (or cells) in the super cell and the ID of the super cell may be consistent or may be configured separately. If the UE moves in a hyper cell and still adopts the mobility management method in the prior art, each TP corresponds to one or more cells (or small cells), so that the UE can frequently perform cell handover. In the embodiment of the present invention, generally, the common information of the TPs in the super cell may be configured to be consistent, for example, the content sent by the channels such as the synchronization channel, the downlink reference channel, the broadcast channel, and the like is the same, and when the UE moves in the super cell, the UE does not sense the change of the serving cell because the common information of the TPs in the super cell is the same. For example, specifically, the UE does not need to measure downlink reference signals sent by each cell in a hyper cell, and instead, the UE sends uplink reference signals, the network side measures the uplink reference signals of the UE, and selects one or more TPs for the UE to perform data transmission based on the measurement result. That is to say, in the process of moving a super cell, the UE may measure the uplink reference signal and switch the TP, and the UE does not sense the TP change as much as possible, which is equivalent to introducing a "no cell" working mode, so that not only the continuity of the service can be ensured, but also the overhead of the air interface signaling can be reduced, the UE does not need to undertake a heavy measurement task, and the design complexity is correspondingly reduced.

It should be understood that the "no cell" mode of operation may refer to: the UE is responsible for sending the uplink reference signal, and the network side continuously updates and maintains the TP providing data communication service for the UE, so that the UE does not sense the change of the TP as much as possible. It should be understood that "cell" herein refers to a common cell in the prior art, i.e. normal cell, and the operation mode of "no cell" in this application may also be referred to as the operation mode of super cell.

In the super cell, a DUI is allocated to the UE, and the super cell can identify the UE according to the DUI. For example, a TP in a super cell may provide data communication services to a UE based on a DUI; the TPs in the super cell may also measure uplink reference signals transmitted by the UE based on the DUI. Specifically, 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.

It should be understood that the embodiment of the present invention is not limited to a specific type of TP, and for example, the TP may be a common base station (e.g., NodeB or eNB), a radio remote module (rru), a micro base station (pico), a relay (relay), or any other wireless access device.

Optionally, as an embodiment, the TP may report to the RAN controller whether the TP supports a no-cell capability, and then the RAN controller performs a no-cell configuration on the TP supporting the no-cell capability. The no cell capability herein may refer to various capabilities required by the TP to operate in the super cell, for example, the capability of measuring the uplink reference signal transmitted by the UE, and the like.

The configuration of the measurement capability of the uplink reference signal of the TP is taken as an example for illustration. First, the RAN controller may send measurement configuration signaling (or measurement control signaling) to the TP. Specifically, at least one of the following measurement configuration parameters may be configured by the measurement configuration signaling: DUI, uplink reference signal configuration, carrying measurement identification, measurement event name, measurement interval, measurement report reporting mode, measurement reporting condition and measurement parameter. In addition, a set of measurement configuration parameters may be configured for each DUI (or each UE), or may be configured for all DUIs (or all UEs) in the super cell together. Further, measuring the parameter may include: at least one of a reception quality of the uplink reference signal, a reception 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 parameters may also include at least one of the thresholds for each of the above parameters. And when the measurement parameters detected by the TP meet the measurement reporting conditions, the TP sends a measurement report, and the measurement report contains a corresponding measurement result. The measurement report reporting mode may include: the report mode of event trigger, the periodic report mode, and the mode of combining the event trigger report and the periodic report. The event-triggered reporting mode may refer to: and when the uplink reference signal measured by the TP meets the threshold in the measurement configuration parameters, the TP sends a measurement report to a RAN controller. The periodic reporting mode may refer to that the TP periodically sends a measurement report to the RAN controller.

After the RAN controller configures measurement configuration parameters of the uplink reference signal for the TP, the TP may measure the uplink reference signal sent by the UE according to the measurement configuration parameters, and report a measurement result to the RAN controller according to a measurement reporting mode.

It should be noted that the measurement configuration signaling may instruct the TP to perform intra-frequency measurement or instruct the TP to perform inter-frequency measurement. Alternatively, the RAN controller may send measurement configuration signaling for intra-frequency measurement to the TP, or may send measurement configuration signaling for inter-frequency measurement to the TP. Specifically, assuming that the operating frequency point of the TP is F1, and the frequency point at which the UE transmits the reference signal is F2, the RAN controller may instruct the TP to perform inter-frequency measurement, that is, instruct the TP to measure the uplink reference signal transmitted by the UE on F2. Or, as another implementation, the RAN controller may also instruct the UE to send the uplink reference signal at the working frequency of the TP, that is, the F1 frequency band, and then instruct the TP to perform the co-frequency measurement. Thus, the TP only needs to measure the uplink reference signal in its own operating frequency band. It should be understood that the above two measurement methods may be used alone or in combination, and the embodiment of the present invention is not limited thereto.

When receiving the measurement report reported by each TP, the RAN controller may determine whether to update the measurement report to the TP set for the UE to transmit 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 transmitting data of the UE one by one, may compare the difference or absolute difference between the measurement result reported by each TP and the measurement result reported by the TP set currently transmitting data of the UE one by one with a certain threshold, may compare the measurement result reported by each TP with the average value of the measurement results reported by the TP set currently transmitting data of the UE one by one, may compare the difference or absolute difference between the measurement result reported by each TP and the measurement result reported by the TP set currently transmitting data of the UE one by one with a certain threshold, and determines whether to update the measurement result to the TP set transmitting data of the UE according to the comparison result.

For example, assume that the measurement parameter is the reception quality of the reference signal; the set of TPs currently transmitting data for the UE includes TP1 and TP 2; the RAN controller allocates measurement tasks to TP1, TP2, TP3, and TP4, respectively, that is, when the reception quality of the reference signal is higher than a certain threshold, a measurement report is sent to the RAN controller. The RAN controller receives the reception quality of the reference signals reported by TP1, TP2, and TP3, respectively. The RAN controller may determine whether to update the TP set for the UE to transmit data according to the following manner:

the first mode is that the TP3 is directly added into a TP set for transmitting data by the UE, namely the TP set for transmitting data by the UE is updated to TP1, TP2 and TP 3;

comparing the reference signal received quality reported by TP3 with the results reported by TP1 and TP2, respectively, wherein if the result of TP3 is higher than at least one of TP1 and TP2, or if the difference or absolute difference between the reference signal received qualities reported by TP3 and TP1 is higher than a certain threshold, or if the difference or absolute difference between the reference signal received qualities reported by TP3 and TP2 is higher than a certain threshold, the RAN controller may add TP3 to a TP set for UE to transmit data, or the RAN controller may replace TP1 or TP2 with TP 3;

it should be noted that if TP1 and TP2 belong to RAN controller 1, and TP3 and TP4 belong to RAN controller 2, the measurement report reported by TP3 may be forwarded through RAN controller 2. In order to avoid that the RAN controller 1 receives the measurement reports of TP1 and TP2 and the received measurement report of TP3 forwarded by RAN controller 2, a time information may be introduced into the measurement report to indicate the time of measurement result recording. It should be understood that RAN controller 2 may forward all received measurement reports, or may select only a part of the measurement reports to forward based on a certain policy, for example, after comparing the measurement results.

When the RAN controller determines to update the set of TPs for which the UE transmits data, the UE may be notified by at least one of the following signaling or information: radio resource Control RRC signaling, L1 signaling, L2 signaling, and Downlink Control Information (DCI).

It should be noted that, in the embodiments of the present invention, names, types, and forms of signals for network measurement sent by the UE are not specifically limited, and the UE sends an uplink Reference Signal as an example in the following, but the embodiments of the present invention are not limited to this, and for example, the signals may be a tracking Signal that is newly introduced to track the location of the UE, or a Sounding Reference Signal (SRS) may be used.

On the basis of the super cell, two states of a power-saving state and an activated state are introduced for the UE in the super cell. It should be understood that the power saving state and the active state are referred to herein for distinguishing from the idle state and the connected state in the prior art, but the embodiments of the present invention do not exclude the case where the idle state and the connected state are still referred to after the super cell is introduced, in which case the active state in the embodiments of the present invention may correspond to the connected state, and the power saving state in the embodiments of the present invention may correspond to the idle state or the connected state. It can also be understood that as a new UE state, the power saving state can exist independently of the hyper cell, i.e. 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.

A UE in power save state continues to retain the DUI of the UE and may have some or all of the following functions:

1. some background traffic and packet transmissions can be handled.

2. Downlink Scheduling-free (DL Scheduling-free) transmission can be supported, i.e., downlink shared resources can be used.

3. Uplink grant-free (UL grant-free) transmission can be supported, i.e., uplink shared resources can be used.

4. The dynamic control channel may not be monitored.

5. A small amount of connection management (e.g., long-period link adaptation, long-period measurements) may be performed.

6. The RRC connection with the network side can be reserved;

7. signaling plane bearing and user plane bearing with a core network can be reserved; alternatively, only the signaling plane bearer with the core network may be reserved, and the user plane bearer with the core network may be deleted. When there is uplink background service or packet data to be transmitted, the uplink background service or packet data may be sent through a signaling plane bearer with a core network, for example, a data packet may be carried through a signaling of an access stratum, or a data packet may be carried through a Non-access stratum (NAS) signaling. Optionally, after the data packet is transmitted to a Mobility Management Entity (MME), the MME identifies that the data packet is a background service or a packet data, and forwards the data packet to a Serving Gateway (SGW); optionally, as an implementation, 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 common or default user plane bearer with the core network. When there is 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.

8. The uplink reference signal may be sent periodically or after an event trigger condition is satisfied. The event trigger condition may be a speed trigger based on the UE, for example, a current transmission period configured on the network side is T, and a speed threshold of the UE is V. When the UE speed is less than and/or equal to V, the UE may automatically extend the transmission interval of the uplink reference signal to N × T, N — 2,3, … …. Further, if the UE is stationary, the transmission period of the uplink reference signal may be configured to be infinite, and in a specific implementation, the maximum transmission period of the reference signal may be configured, for example, 256s, 30min, and the like. Alternatively, the event trigger condition may also be triggered after the UE detects another hyper cell, for example, the UE moves to a coverage overlapping area of multiple hyper cells, and the UE detects an ID of another hyper cell in addition to the ID of the current hyper cell, and at this time, the UE may send the uplink reference signal.

The active UE has a DUI and may have some or all of the following functions:

1. can process interactive and conversational services

2. Can support UE to use uplink and downlink shared resources and dedicated resources

3. Can support fast connection management (e.g. fast link adaptation, short period measurement)

As described above, the UE has two states and can transition between the two states, for example, when the UE has no traffic data transmission for a while after the data transmission is completed, the UE can transition 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, which consumes less power than in the active state.

Alternatively, in one embodiment, the determination of whether to transition between the power-saving and active states may be made by the UE by measuring some parameter or indicator. For example, when it is measured that a certain parameter or index satisfies a threshold, the UE sends indication information to the network side, and then the network side may control the UE to perform state transition according to the indication information. Specifically, the RAN controller may issue a threshold value to the UE in advance, where the threshold value may be, for example, a threshold of a buffer data size of the UE; when the buffered data of the UE exceeds the threshold, the UE reports a measurement report to the RAN controller, and then the RAN controller controls the UE to perform state transition. Or, the RAN controller may send a measurement instruction to the UE, and under the action of the measurement instruction, when the UE measures that the size of the buffered data exceeds the size of the data currently allowed to be sent, the UE reports a measurement report to the RAN controller, and then the RAN controller controls the UE to perform state transition. The indication information of the UE may be reported through L2 signaling, or may be reported through RRC signaling, for example, a measurement report, or may be reported in initially transmitted data, for example, a certain indication bit in an initially transmitted data block is used for indicating, for example, the indication bit is set to TRUE, which is not specifically limited in this embodiment of the present invention.

Optionally, in an embodiment, the network side may instruct the UE to perform the active state or the power saving state through RRC signaling. For example, a new status indication cell may be added to the RRC signaling, and the status indication cell may indicate that the UE enters the power saving state or the active state, and the UE may enter the corresponding state according to the indication of the status indication cell.

With continued reference to fig. 1, when the UE is at location 1, data of the UE may be transmitted (or communication services may be provided for the UE) by a set of TPs (also referred to as a TP cluster) formed by TPs in area 1, and when the user equipment moves from location 1 to location 2, the UE may be provided by the set of TPs formed by TPs in area 2. That is, during the movement of the UE, the TP for transmitting data for the UE may be continuously updated, and the task of updating may be completed by the network side based on the uplink reference signal sent by the UE. It should be noted that, the TP set of the UE may be divided into an UL TP set and a DL TP set according to whether the service is uplink service of the UE or downlink service of the UE. The updating of the UL TP set may be performed by the network side based on an uplink reference signal transmitted by the UE. The updating of the DL TP set may be completed by the network side based on the uplink reference signal sent by the UE, or, optionally, as an embodiment, the network side may also update according to a measurement result based on the downlink reference signal reported by the UE.

The following describes mobility management, communication method, and the like in a hyper cell in detail with reference to specific embodiments.

Fig. 2 is a schematic flow chart of a communication method applied to a hyper cell according to an embodiment of the present invention. It should be understood that fig. 2 shows detailed communication steps or operations applied to a hyper cell, but these steps or operations are merely examples, and other operations or variations of the various operations in fig. 2 may also be performed by embodiments of the present invention. Moreover, the various steps in FIG. 2 may be performed in a different order presented in FIG. 2, and it is possible that not all of the operations in FIG. 2 may be performed.

In the embodiment of fig. 2, two operation modes are introduced for the UE: a cell mode (also referred to as normal-cell mode or network-centric mode) and a non-cell mode (no-cell mode or UE-centric mode). In the cell mode, a mobility management mode in the prior art can be adopted, namely, a network sends a downlink reference signal, UE measures the downlink reference signal and feeds back a measurement report, and a network side performs cell switching based on the measurement report; in the non-cell mode, an uplink reference signal may be transmitted by the UE, and the network measures the uplink reference signal of the UE and then continuously updates the TP set for transmitting UE data based on the measurement result. However, it should be understood that the two operation modes are introduced mainly in view of flexibility and compatibility issues, and the embodiments of the present invention do not exclude the possibility of completely replacing the cell mode with the non-cell mode or performing mobility management only in the cell mode in a super cell, in which case, the non-cell mode may be directly used to provide service for the UE without selecting the operation mode for the UE.

In addition, in the embodiment of fig. 2, mobility management is provided for the UE by a Radio Access Network controller (RAN controller), which may be a separate Network element on the Access Network side, but the embodiment of the present invention is not limited thereto. For example, the RAN controller may be integrated with the TPs in the same entity, such as referred to as an access network device, and the TPs may be transmitting and receiving units of the access network device; alternatively, the RAN controller may also be a TP, which may or may not be a TP of a set of TPs that provide data transmission services for the UE, and when so, the RAN controller may send signaling directly to the UE.

The specific steps of fig. 2 are described below.

202. The UE initiates initial access and executes an RRC connection establishment flow.

In the RRC connection establishment procedure, relevant 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 conditions of the surrounding cells, traffic information, etc. These parameters may be parameters measured by the Global Positioning System (GPS) of the UE, or other means.

204. The hyper cell sends an initial UE message to a Core Network (CN).

206. The CN sends an initial context establishment request to the hyper cell.

In steps 204 and 206, the hyper cell establishes a connection with the CN for the UE, and in the above process, the hyper cell may acquire information such as the UE type or the UE capability from the UE or the CN. Specifically, the UE type may be whether the UE is a fixed-location UE, such as a sensor, whether the UE is power-consuming sensitive, and the like. The UE capabilities may be, for example, whether the UE supports non-cell mode, which frequency bands the UE supports, etc.

208. The hyper cell sends a message to the RAN controller requesting the RAN controller to determine the operating mode of the UE.

In step 208, the message sent by the super cell to the RAN controller may carry the UE information obtained in steps 202 to 206, for example, the UE information may be a System Architecture Evolution Temporary Mobile Subscriber Identity (S-TMSI) of the UE, a moving speed of the UE, a location of the UE, a type of the UE, a capability of the UE, service information of the UE, and the like.

210. The RAN controller determines the operating mode of the UE.

The RAN controller may determine the operating mode of the UE based on the information provided by the hyper cell in step 208. For example, the RAN controller learns the approximate location, the moving speed, and the like of the UE based on the received information, and then determines whether it is appropriate to adopt the non-cell mode based on the network deployment situation around the location, and if it is appropriate to adopt the non-cell mode and the UE supports the non-cell mode, the operating mode of the UE may be determined as the non-cell mode.

212. The RAN controller performs resource coordination with the TPs in the hyper cell.

In step 212, the RAN controller may allocate a first TP set and a second TP set for the UE based on the acquired information of the UE (e.g., location of the UE, speed of the UE, type of the UE, etc.), and perform resource coordination with the TPs, where each TP set includes one or more TPs. The TPs in the second set of TPs may be used for data transmission of the UE, and thus the second set of TPs may also be referred to as a set of transmission TPs of the UE, or a transmission cluster, and the TPs in the first set of TPs may be used for measuring uplink reference signals transmitted by the UE, and thus the first set of TPs may also be referred to as a set of measurement TPs of the UE, or a measurement cluster.

Specifically, the TPs in the first and second sets of TPs may be TPs around the UE, and in general, the second set of TPs may be a subset of the first set of TPs. As shown in fig. 3, in the current location of the UE, the first set of TPs includes the second set of TPs. Optionally, as an embodiment, the first TP set may include a second TP set and a layer of TPs around the second TP set. It should be noted that the TP set formed by all TPs in a super cell may also be set as the first TP set of the UE, in this case, all TPs in the super cell need to measure the uplink reference signal sent by the UE, and this setting manner may cause a large burden on the network, so as to be an embodiment, a part of TPs may be selected from the super cell to form the second TP set and the 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.

214. The RAN controller sends a non-cell configuration (no cell configuration) message to the TPs in the second set of TPs and the first set of TPs.

The non-cell configuration message may indicate the TPs in the second set of TPs to serve the UE, indicate the TPs in the first set of TPs to measure uplink reference signals sent by the UE, and optionally, as an embodiment, the non-cell configuration message may further include a DUI allocated by the RAN controller for the UE, where the DUI may be used to identify the UE (or uniquely identify the UE) in the super cell.

Optionally, as an embodiment, a correspondence may be provided between the DUI of the UE and a time-frequency resource (or called a time-frequency sequence) of the UE for sending the uplink reference signal, and the TP in the first TP set may determine, according to the DUI of the UE and the correspondence, the time-frequency resource of the UE for sending the uplink reference signal, so as to measure the uplink reference signal sent by the UE on the time-frequency resource. Of course, the embodiment of the present invention is not limited thereto, and for example, the position of the time-frequency resource occupied by the uplink reference signal of the UE may be indicated to the TP in the first TP set by using the non-cell configuration information.

Optionally, as an embodiment, if the TP in the second TP set of the UE is updated, for example, TP4 replaces the original TP3, the subsequent processing manner of some data related to the UE in TP4 (e.g., data that is not successfully transmitted, data that is transmitted but has not received ACK) may be considered. Specifically, if TP4 and TP3 belong to the same super cell, the RAN controller and TP3 need to interact with the unsent data of the UE and the data that has sent the unreceived ACK; the RAN controller sends these data to TP4, and TP4 to the UE, according to the feedback of TP 3; and the UE carries out corresponding feedback according to the HARQ feedback mechanism configured by the RAN controller. If TP4 and TP3 belong to different super cells, it may also be necessary to consider the handling of the Media Access Control (MAC) entity of the UE. For example, the MAC entity 1 processes data received by the super cell1, and when the TP4 (belonging to the super cell2) is configured to provide data service for the UE, the MAC entity 1 may carry a mapping relationship between the

MAC entity

1 and 2 super cells (the super cell1 and the super cell2), so as to instruct the MAC entity 2 to process data of the TP 4; the UE may identify the super cell to which the TP belongs, and when the UE receives a configuration indication from the network side that the replaced TP belongs to a different super cell, the UE may clear the buffered data received from TP 3. Of course, in a network architecture with ideal time delay, the TP may only include the physical layer PHY, and the MAC and its upper layer are located at the BBU-pool side, so that the above data forwarding process will be triggered only when the BBU-pool changes. For a network architecture with non-ideal delay, only a Packet Data Convergence Protocol (PDCP) may be located at a Baseband processing Unit (BBU) -pool side, and other Protocol layers are all at a TP side (or all Protocol layers are at the TP side), where each TP handover involves an RRC reconfiguration process.

Optionally, as an embodiment, in order to reduce the interruption delay of the user plane data transmission during the handover process, the data sent to the UE may be prestored in each TP. When the TP set for transmitting data for the UE changes, the UE completes a related reset procedure according to network configuration, for example, completes a reset procedure of at least one protocol layer of RRC, PDCP, Radio Link Control (RLC), MAC, and PHY, and sends an indication message of current buffered data to the network. The indication message may be sent through at least one of the following messages or signaling: service request messages, reconfiguration complete signaling, signaling via L2, uplink physical control and data channels. The indication message may carry a current data buffering condition, for example, an identifier of a protocol layer (the protocol layer may be at least one of protocol layers such as RRC, PDCP, RLC, MAC, PHY, and the like) and HARQ information corresponding to data in the protocol layer may be carried, so that the new TP may uniquely identify the data according to the indication message, and perform data transmission on the UE according to corresponding HARQ information (including ACK or NACK information of the data). Taking the example that the UE updates only the port number for receiving data, or the UE performs only PHY protocol layer reset, the UE may send an indication message to the network side, and may carry identification information of one or more of PDCP, RLC, and MAC in the indication message, and the indication message may also carry HARQ information of data in the protocol layer corresponding to the identification information. And the new TP receives the indication message and retransmits the NACK information. Optionally, the new TP sends acknowledgement information to the original TP, instructing the original TP to stop sending data to the UE.

216. The RAN controller sends a non-cell configuration message to the UE over the TP.

The non-cell configuration message may be used to instruct the UE to operate in a non-cell mode in the super cell. Optionally, as an embodiment, the non-cell configuration message may include a DUI of the UE. The UE may utilize the DUI for data transmission with TPs in the second set of TPs. Optionally, the non-cell configuration message includes information of TPs in the first set of TPs.

218. The hyper cell sends an initial context setup complete message to the CN.

The UE may then operate in a non-cell mode, communicate data with a second set of TPs for which the RAN controller is assigned, and transmit uplink reference signals for measurements by the first set of TPs.

220. The UE transmits an uplink reference signal.

Optionally, as an embodiment, a corresponding relationship between a UE-specific UE identifier and a reference signal time-frequency resource may be pre-established, and the UE may determine the time-frequency resource for sending the uplink reference signal based on the corresponding relationship.

In an embodiment, the uplink reference signal may be an SRS. In an embodiment, the uplink reference signal may be sent periodically, or the UE moves a certain distance and then sends the uplink reference signal, where the distance may be configured by the network, or a combination of the two sending methods, that is, the uplink reference signal is sent after the UE detects that the UE moves a certain distance and also sends the uplink reference signal after the periodic time elapses.

222-224, 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 continually adjust or update the second set of TPs based on measurement reports reported by TPs in the first set of TPs or the second set of TPs (or stated as continually adjusting or updating members of the second set of TPs, e.g., adding other TPs to the second set of TPs and/or deleting a member of the second set of TPs). In one embodiment, the RAN controller may also continually adjust or update the first set of TPs (or stated as continually adjusting or updating members of the first set of TPs, e.g., adding other TPs to the first set of TPs and/or deleting a member of the first set of TPs).

Specifically, when the uplink reference signal of the UE measured by a certain TP in the second set of TPs becomes worse, for example, below a certain threshold, the TP may be deleted from the second set of TPs; when a certain TP in the first TP set does not detect the uplink reference signal (or the detected uplink reference signal is lower than a certain threshold) and meets a certain condition (for example, a peripheral layer of TPs also does not detect the uplink reference signal of the UE or the detected uplink reference signal is lower than a certain threshold), 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 measures the uplink reference signal of the UE to be higher than a certain threshold), a layer of TPs around the certain TP set may be added to the first TP set; when a certain TP in the first TP set measures an uplink reference signal of the UE and the signal strength is good enough (that is, when the measured uplink reference signal of the UE is higher than a configured or set threshold, or the measured uplink reference signal of the UE is compared with a difference or an absolute difference of measurement results or average measurement results reported by TPs of the second TP set one by one, and the difference or the absolute difference is smaller than a certain threshold), the TP may be added to the second TP set, and optionally, the RAN Controller may notify the UE of the TP added to the second TP set through at least one of the following information or signaling: RRC signaling, L1 signaling, L2 signaling, and DCI.

226. The RAN controller determines that the UE is operating in cell mode.

The RAN controller may determine, according to the measurement report reported by the first TP set, that the UE is no longer suitable for operating in the non-cell mode, for example, the UE is about to move out of a super cell range, and a cell into which the UE is about to enter is an ordinary cell, and at this time, the RAN controller may switch the operating mode of the UE to the cell operating mode.

228-.

The non-cell release message may be used to instruct the UE to enter cell mode. The cell release message may carry a frequency and/or a cell id of the serving cell, which is used to indicate the serving cell when the UE is in the cell mode. In one embodiment, the frequency and/or cell id may be a cell corresponding to one TP in the current second TP set. In one embodiment, the non-cell release message may indicate frequencies and cell ids of multiple serving cells, for example, a certain cell of the multiple serving cells may be a primary cell, and other cells may be secondary cells, so that the UE may perform carrier aggregation in the cell mode.

232. The UE switches to cell mode and communicates with the serving cell.

The updating and managing manner of the UE in the hyper cell1 is described in detail below with reference to fig. 4.

Fig. 4 is a schematic flow chart of a method applied to a super cell according to an embodiment of the present invention. It should be understood that fig. 4 shows detailed communication steps or operations applied to the Hyper cell, but these steps or operations are only examples, and other operations or variations of the operations in fig. 4 may also be performed by the embodiments of the present invention. Moreover, the various steps in FIG. 4 may be performed in a different order presented in FIG. 4, and it is possible that not all of the operations in FIG. 4 may be performed.

Referring to fig. 4, the RAN Controller may delete or add a TP in the second TP set through a message, such as a non-cell configuration message, where the message may carry the DUI of the UE, and optionally, when deleting or adding a TP in the first TP set, the RAN Controller informs, through a 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 TP information also included in the first TP set after the deletion or addition is performed. The RAN controller may delete or add a TP of the first set of TPs via a reference signal measurement indication message, which may carry a dedicated user equipment identity of the UE. Optionally, as an embodiment, the reference signal measurement indication message may further carry a configuration message of an uplink reference signal, which indicates a time-frequency resource of the uplink reference signal sent by the UE, and this is only an example of a manner of determining uplink reference signal configuration, and here, the uplink reference signal may also be determined in a manner that a dedicated user equipment identifier of the UE is associated with the time-frequency resource of the uplink reference signal, which has been described above, and this is not specifically limited in this embodiment of the present invention.

Fig. 2-4 primarily address the mobility management problem for UEs within a super-cell. Fig. 5 shows location distributions of two super cells, and when a UE belonging to a super cell1 (a first super cell in fig. 5) moves to an edge of the first super cell, it can also be considered to enhance mobility management of the UE at a super cell1 boundary. Specifically, when the UE is in the overlapping area of the super cell1 and the super cell2 (the second super cell in fig. 5), even if the TP in the super cell2 detects the uplink signal of the UE, the uplink signal is considered as interference, where the first DUI of the UE may collide with the DUI already allocated in the super cell2, and the first DUI is illegal for the super cell2 because the first DUI is not allocated to the super cell2 even though the first DUI does not collide, so that 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.

In order to enhance mobility management of a UE at the edge of a super cell, one way is that when the UE is in an overlapping area of two super cells (super cell1 and super cell2), the super cell1 and the super cell2 respectively allocate DUIs to the UE, that is, the UE stores two sets of DUIs simultaneously for unique identification in different super cells. For example, the UE performs downlink DMRS mapping, DCI, and PDCCH scrambling (scrambling) in the super cell1 by using the first DUI, and performs uplink reference signal and UE data transmission in the super cell1 by using the first DUI, where the super cell1 may uniquely identify the UE based on the uplink reference signal (e.g., sequence, location, etc.) of the UE or the first DUI. The UE performs DMRS patterning, DCI transmission, and PDCCH scrambling (scrambling) in the super cell2 by using the second DUI, and performs uplink reference signal and UE data transmission in the super cell2 by using the second DUI, where the super cell2 may uniquely identify the UE based on the uplink reference signal (such as sequence, location, etc.) of the UE or the second DUI.

Another way is that the UE may be allocated an SDUI in an overlapping region of two super cells, where the SDUI is a UE identifier shared between the super cell1 and the super cell2, and the super cell1 (TP) and the super cell2 (TP) may jointly identify the UE through the SDUI, for example, the SDUI may be used for downlink DMRS mapping, DCI, scrambling (scrambling) of the PDCCH, uplink reference signals, transmission of data of the UE, and the like for the UE in the overlapping region, and the network side may uniquely identify the UE based on the uplink reference signals (such as sequence, location, and the like) or the SDUI of the UE. Based on SDUI, frequent allocation of DUIs can be avoided for UEs that often move in overlapping areas between two super cells. For a normal UE moving from a super cell (e.g. super cell1 or super cell2) to the overlap area, the SDUI may be configured for the UE in advance, and when the UE is in the overlap area and transmits an uplink reference signal (e.g. SRS, or tracking signaling), the SDUI may be detected and identified by the super cell1 and the super cell2, respectively.

Before describing the communication flow based on the SDUI in detail, the configuration method of the SDUI between the super cells, and the identification and release method of the SDUI by the UE are illustrated.

First, the SDUI may be a special DUI that may be shared by multiple hyper cells. The SDUI may be interactively confirmed between adjacent hyper cells, or through a RAN controller and multiple hyper cells, or the SDUI may be configured by default within each hyper cell; after the SDUI is distributed, the RAN controller can inform measurement TPs in a plurality of super cells to detect uplink data or uplink reference signals scrambled by the SDUI; after receiving the SDUI, the active UE may use the SDUI to transmit and receive data and transmit uplink reference signals in multiple super cells. There are various ways to assign the SDUI to the UE, or the UE may identify the SDUI, as exemplified below.

Mode 1: broadcast notification + proprietary signaling notification. For example, the SIB carries the SDUI information, the UE reads the ID list of the SIB and can obtain the SDUI information, and since the UE already identifies which IDs are SDUIs, when the network configures the SDUI for the UE through a dedicated signaling, such as an RRC signaling or a paging message, the UE does not need to indicate that the configured identifier is an SDUI that can be shared among hyper cells, and can directly identify the SDUI (for example, the UE compares the received ID with the ID in the ID list received through the SIB, and if a matching ID is found, it indicates that the received ID is an SDUI).

Mode 2: proprietary signaling. In the method 2, the SDUI may be carried in the dedicated signaling, and optionally, the carried identifier may be indicated as the SDUI by adding an indication information in the dedicated signaling. For UEs in different states, the type of the dedicated signaling may be different, for UEs in power saving state (or referred to as UEs in ECO state, ECO: Ecology, Conservation, Optimization, or referred to as UEs in idle state), the network side may directly carry SDUI to idle UE through paging, configure SDUI to ECO UE through paging and/or RRC signaling, optionally, may simultaneously carry an indication message in paging or RRC signaling to UE, indicating that the ID is SDUI, so that UE detects change of hyper cell in idle or ECO state, does not trigger hyper cell update signaling, and of course, may also agree in advance that UE in no cell state does not sense the change of the hyper cell, i.e. the UE does not actively initiate update of the hyper 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 update of the cell, i.e. without informing the UE whether the ID is a DUI or an SDUI. For the active UE, the network side may configure the SDUI to the active UE through RRC signaling, and carry the indication information.

In addition, there are various ways to release the SDUI, for example, when the UE power off or exits the no-cell mode, the UE actively releases the SDUI. The SDUI-based communication flow in the super cell is described in detail next.

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 super cells. It should be understood that the steps or operations described in fig. 6 are only examples, and other operations or variations of the various operations in fig. 6 may also be performed by embodiments of the present invention. Moreover, the various steps in FIG. 6 may be performed in a different order presented in FIG. 6, and it is possible that not all of the operations in FIG. 6 may be performed.

601. The UE initiates an RRC connection setup request and may carry one or more of the following information in the request: capability information of the UE, statistical information of recent main activity ranges (such as location, route, etc.), historical hyper cell ID information, speed of the UE, location of the UE, detected signal conditions of surrounding cells, traffic information, etc. These parameters may be parameters measured by the Global Positioning System (GPS) of the UE, or other means.

The RAN controller may determine that the UE operates in the non-cell operation mode based on the information of the UE, allocate a first TP set and a second TP set for the UE, and perform mobility management on the UE through updating of the TP sets. Furthermore, the RAN controller may also determine that the UE is in an overlapping area of two super cells (super cell1 and super cell2) based on the information.

602. The RAN controller allocates the SDUI to the UE through a non-cell configuration message.

Fig. 7 is a schematic flow chart 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 a hyper cell1 and a hyper cell 2. It should be understood that the steps or operations described in fig. 7 are only examples, and other operations or variations of the various operations in fig. 7 may also be performed by embodiments of the present invention. Moreover, the various steps in FIG. 7 may be performed in a different order than presented in FIG. 7, and it is possible that not all of the operations in FIG. 7 may be performed.

702. The UE receives a non-cell configuration (no-cell configuration) message in a hyper cell1, and receives a first DUI configured in the hyper cell1, where the first DUI may uniquely identify the UE in the hyper cell1, and the UE may use the first DUI for data communication or uplink reference signal transmission.

704. The RAN controller receives a measurement report, such as signal strength, quality, path loss, signal-to-noise ratio, signal-to-interference-and-noise ratio, and the like of an uplink reference signal, sent by a TP close to the super cell2 in the super cell1, and determines that the UE may move to an overlapping area of the super cell1 and the super cell 2.

706. The RAN controller instructs the SRS signals sent by the SDUI for detecting some TPs in the super cell2, and these TPs in the super cell2 can be selected by the RAN controller according to the location of the UE.

It should be understood that hyper cell1 and hyper cell2 may belong to the same RAN controller or may belong to different RAN controllers. When hyper cell1 and hyper cell2 belong to different RANcontrollers (for example, hyper cell1 belongs to RAN controller 1, hyper cell2 belongs to RAN controller 2), SDUI information can be exchanged between the 2 RAN controllers, and the RAN controller 2 notifies TPs under hyper cell2, wherein the TPs may be TPs under hyper cell2 close to hyper cell1, so that the TPs in hyper cell2 can timely detect uplink reference signals sent by the UE. There may be multiple management manners of TPs in the overlapping area, for example, 2 RAN controllers may manage separately, and after interaction, notify the UE separately; after 2 RAN controllers interact, preferably one RAN controller performs unified management and notification. Specifically, for example, the TP that starts unified management of the overlapping area by the RAN controller 1 (or source RAN controller) includes configuration of a first TP set and a second TP set of the UE, and reporting of a measurement result of the TP on an uplink reference signal of the UE. RAN controller 1 may find the number of TPs in super cell2 or the ratio of the total number of TPs according to the reported measurement result, and RAN controller 1 determines when to switch the control right to target RAN controller 2.

708. The RAN controller sends a non-cell configuration message to the UE through the TP of the hyper cell1, where the non-cell configuration message may carry the SDUI allocated to the UE.

710. The UE transmits the uplink reference signal using the SDUI.

For example, the uplink reference signal is scrambled based on all or part of the SDUI.

712. The RAN controller receives measurement reports of TPs in hyper cell1 and hyper cell 2.

714. The RAN controller allocates a second DUI to the UE through the non-cell configuration message, where the second DUI is a DUI in the hyper cell2 and can be used to uniquely identify the UE in the hyper cell 2.

For example, the RAN controller finds that the quality of the uplink reference signal corresponding to the SDUI in the measurement report reported by the hyper cell1 is lower than a certain threshold, or does not receive the measurement result of the uplink reference signal related to the SDUI in the hyper cell1, and at this time, the RAN controller may allocate a second DUI to the UE.

The interaction flow between the ECO-state UE and the SDUI at the network side is similar to that in fig. 7, and after receiving the SDUI, the ECO-state UE may send the uplink reference signal to the TP in the two super cells without triggering the super cell update. With SDUI, frequent hyper cell updates for ECO UEs can be avoided. Optionally, in one embodiment, the RAN controller may not send the SDUI to the UE in the overlapping area, and only send a normal second DUI that allows the super cell2 to uniquely identify the UE. The UE may send uplink reference signals using the first DUI and the second DUI simultaneously for identification of TPs in two super cells.

Optionally, as an embodiment, when the RAN controller determines that the UE may move to the overlapping area of the supercell 1 and the supercell 2, the RAN controller may configure two sets of DUIs for the UE instead of configuring the SDUI for the UE, one set of DUIs is used for identifying the UE in the supercell 1, and the other set of DUIs used for identifying the UE in the supercell 2, which is described in detail below with reference to fig. 8.

Fig. 8 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention. Fig. 8 illustrates a procedure in which an active UE moves in an overlapping area of a super cell1 (belonging to a super cell under RAN controller 1) and a super cell2 (belonging to a super cell under RAN controller 2). It should be understood that the steps or operations described in fig. 8 are only examples, and other operations or variations of the various operations in fig. 8 may also be performed by embodiments of the present invention. Moreover, the various steps in FIG. 8 may be performed in a different order presented in FIG. 8, and it is possible that not all of the operations in FIG. 8 may be performed. For example, when hyper cell1 and hyper cell2 belong to the same RAN controller, no interworking between RAN controllers needs to be performed.

802. The UE receives a non-cell configuration (no-cell configuration) message in a hyper cell1 under RAN controller 1, and receives a first DUI configured in the hyper cell1, where the first DUI may uniquely identify the UE in the hyper cell1, and the UE may use the first DUI for data communication or uplink reference signal transmission.

804. RAN controller 1 receives a measurement report, such as signal strength, quality, path loss, signal-to-noise ratio, signal-to-interference-and-noise ratio, etc., of an uplink reference signal, sent by a TP in super cell1 that is close to super cell2 under RAN controller 2, and determines that the UE may move to an overlapping area of super cell1 and super cell 2.

806. RAN controller 1 sends a resource configuration indication message to RAN controller 2 requesting allocation of resources.

808. And the RAN controller 2 sends a resource configuration response message carrying the second DUI.

The resource allocation response message may also carry uplink reference signal allocation information and/or TA.

810. The RAN controller 1 forwards the resource configuration information in the configuration response message to the UE.

812. RAN controller 1 sends a measurement request message to RAN controller 2.

The measurement request message may contain at least one of the following measurement configuration information: measurement identification, measurement event name, measurement interval, measurement report reporting mode, measurement report reporting condition, measurement parameter, second DUI, uplink reference signal configuration and the like;

814. RAN controller 2 determines the TP needed to measure the reference signal (i.e., the second reference signal in fig. 8) transmitted by the UE.

816. The RAN controller 2 forwards the measurement configuration information in the measurement request message to the TPs that need to measure the reference signal sent by the UE, and each TP starts related measurement.

The second DUI of the UE may be carried in the measurement configuration information.

818, 820, RAN controller 2 receives the measurement report of each TP and forwards it to RAN controller 1. The second DUI may be carried in a measurement report.

822. RAN controller 1 determines whether to update the TP set for the UE to transmit data.

The update of the set of TPs for transmitting data for the UE by the RAN controller may be in at least one of the following ways: adding other TPs into a TP set for transmitting data by the UE; a certain TP of the set of TPs for transmitting data for the UE is deleted. Optionally, as an implementation, time information may be introduced in the measurement report for marking the time of the measurement result recording. In addition, the RAN controller 2 may forward all received measurement reports, or may select only a part of the measurement reports to forward based on a certain policy, for example, after comparing the measurement results.

824. RAN controller 1 informs the UE that the set of TPs for which data is transmitted is updated.

Specifically, when the RAN controller 1 determines to update the TP set for the UE to transmit data, the UE may be notified by the following information or signaling: downlink RRC signaling, L2, L1 signaling, DCI. RAN controller 1 may also inform RAN controller 2 that the set of TPs for transmitting data for the UE is updated.

In addition, RAN controller 1 may also find the number of TPs in RAN controller 2 or a ratio of the total number of TPs according to a subsequent reported measurement report, and RAN controller 1 may decide when to switch control over to RAN controller 2.

Fig. 9 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention. Fig. 9 relates to a complete procedure for switching and reestablishing the active UE between the super cells, that is, how to switch the super cells and how to implement service continuity when the active UE moves from one super cell to another super cell. It should be understood that the steps or operations described in fig. 9 are only examples, and other operations or variations of the various operations in fig. 9 may also be performed by embodiments of the present invention. Moreover, the various steps in FIG. 9 may be performed in a different order presented in FIG. 9, and it is possible that not all of the operations in FIG. 9 may be performed. It should be noted that fig. 9 is described by taking an example that hyper cell1 and hyper cell2 belong to the same RAN controller, and if the scenario is a cross-RAN controller, the flow of fig. 9 may be implemented by inter-cooperation between RAN controllers, mutual interaction of TP information, and the like.

Steps 902 to 906 are similar to steps 702 to 704 in fig. 7 and will not be described in detail here.

908. And the RAN controller judges that the UE is about to move to an overlapping area of the super cell1 and the super cell2 according to the measurement results reported by the TPs.

For example, when one or more TPs under super cell1 near super cell2 report detection of an uplink reference signal of the UE and send a measurement report to the RAN controller, the RAN controller determines that the UE is about to move to the overlapping area. Alternatively, when the number of measurement reports reported by TPs close to the hyper cell2 is greater than or equal to a preset threshold, the RAN controller determines that the UE is about to move to the overlapping area. Or, when the ratio of the number of measurement reports reported by the TPs close to the hyper cell2 to the total number of TPs reporting the measurement reports is greater than or equal to a preset threshold, the RAN controller determines that the UE is about to move to the overlapping area.

910. The RAN controller sends a reconfiguration message to the TP and the UE in the first super cell.

The SDUI allocated for the UE may be carried in the reconfiguration message.

912. And the RAN controller sends a reference signal measurement indication message to TPs under a hyper cell2 to indicate the TPs to measure uplink reference signals sent by the UE, wherein the message carries the SDUI of the UE and/or the time-frequency resource configuration of the uplink reference signals. It should be understood that the TPs that receive the SDUI in step 910 may each be a TP in the first set of TPs of the UE.

914. And the TP in the super cell2 measures the uplink reference signal of the UE and reports a measurement report to the RAN controller.

916. The RAN controller determines, according to the received measurement report, that the uplink reference signal quality of the UE measured by the TP in the super cell2 is better than the signal quality measured by the TP in the super cell1, for example, the measurement results reported by the TPs in the super cell2 are more, or/and the average value of the measurement results is better than the measurement results reported by the TPs in the super cell1, and the RAN controller identifies that the UE is more suitable for data transmission in the super cell2, and determines to perform handover.

918. The RAN controller sends a New UE Enter Request (New UE Enter Request) message to the TP under hyper cell 2.

920. The TP under hyper cell2 replies with a New UE Enter Response message, indicating acceptance.

922. The RAN controller sends a handover command to the UE via the TP under hyper cell 1.

The handover command may carry an initial TA value, and is used for performing uplink synchronization with the TP in the super cell2 when the UE accesses to the new super cell 2. Optionally, in an embodiment, a new DUI (second DUI) may also be provided to the UE, for example, if the TPs in the first TP set of the UE, which detect the uplink reference signal of the UE, all belong to the hyper cell2, the second DUI is allocated to the UE.

924. And after receiving the switching 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 a service in a super cell2 and for performing mobility management in the super cell 2.

926. The RAN controller sends a reconfiguration message to the TPs under hyper cell 2.

For example, if the RAN controller finds that the TPs reporting the uplink reference signal quality of the UE all belong to the super cell2, the RAN controller sends a second DUI (the second DUI can uniquely identify the UE in the super cell2) to the TPs in the super cell2 and the UE through a reconfiguration message, and releases the SDUI.

Fig. 10 is a schematic flow chart of a communication method applied to a super cell according to an embodiment of the present invention. Fig. 10 illustrates a handover and re-establishment procedure between super cells for a UE in a power saving state, and the procedure of fig. 10 is similar to the procedure of fig. 9, except that the RAN controller performs information interaction with the UE through a paging message, and is not described in detail here to avoid repetition.

When the UE applies the super cell working mode, the network takes the UE as the center to carry out mobility management; in the existing Radio Access Technology (RAT), such as the RAT of GSM, UMTS, LTE, etc., mobility management is centered around the network. When the UE is in an overlapping area between the super cell and the existing communication system, the UE needs to switch between two different RATs, and a switching manner between the two different RATs needs to be considered.

Switching a first scene: the active UE is handed over from the super cell to the existing communication system (i.e. the mobility management is network-centric communication system) and re-established. For example, when an active UE moves from a hyper cell to an existing communication system, how to perform handover, and how to achieve service continuity.

Switching a scene two: and switching and reestablishing the active UE from the existing communication system to the super cell. For example, when an active UE moves from an existing communication system to a super cell, how to perform handover, and how to achieve service continuity.

For the first switching scenario, the following switching flow is provided in the embodiments of the present invention (it should be understood that the steps and operations in the following flow are merely examples, the order of the steps in the flow is not limited by the embodiments of the present invention, and all the operations in the following flow may not be performed):

step a2, the UE receives a non-cell configuration (no-cell configuration) message in the hyper cell, and receives a first DUI configured in the hyper cell, where the first DUI may uniquely identify the UE in the hyper cell1, and the UE may use the first DUI to perform data communication or uplink reference signal transmission.

Step a4, the RAN controller receives a measurement report sent by the edge TP in the super cell, such as signal strength, quality, path loss, signal-to-noise ratio, signal-to-interference-and-noise ratio, etc., and determines that the UE may move to an overlapping area between the super cell and the existing communication system.

Step a6, the RAN controller configures an Inter-RAT measurement order to the UE, where the Inter-RAT measurement order may include at least one of the following information: RAT types such as GSM, UMTS, LTE, CDMA, etc.; measuring the mark; measuring an event name; measurement parameters such as signal quality, signal strength, etc.; measuring an interval; measuring a reporting condition; measuring reporting modes, such as periodic reporting, event triggered reporting and the like;

step A8, after receiving the Inter-RAT measurement command, UE starts measurement of adjacent RAT according to the information; and reporting 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 handover information and pass the handover configuration of the target RAT through to the UE.

Step A14, the UE executes the switching configuration, and after the switching process is completed, the target RAT initiates a switching completion message.

For the second switching scenario, the following switching flow is provided in the embodiment of the present invention (it should be understood that steps and operations in the following flow are merely examples, and the order of the steps in the flow is not limited by the embodiment of the present invention, and all operations in the following flow may not be executed):

step B2, the existing communication system (hereinafter referred to as RAT 1) detects that the UE is located in the overlapping area of RAT 1 and the super cell.

Step B4, the RAT 1 and the RAN controller exchange handover information, and receive a non-cell configuration (no cell configuration) message, where the non-cell configuration message may include at least one of the following information: a first DUI that can uniquely identify a UE within a hyper cell 1; TA; a data transfer port number; configuring an uplink reference signal; the RAT 1 transmits the non-cell configuration information to the UE.

Step B6, the UE executes the switching configuration, after the switching process is completed, the UE sends the uplink reference signal in the super cell.

The communication method applied to the super cell according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 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 fig. 11-16.

Fig. 11 is a schematic configuration diagram of a controller of a radio access network of an embodiment of the present invention. It should be understood that the controller 1100 of the radio access network of fig. 11 is capable of implementing the various steps performed by the controller of the radio access network in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity. The controller 1100 of the radio access network includes:

a determining unit 1110, configured to determine that a user equipment UE is in an overlapping area of a first super cell and a 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;

a transmitting unit 1120, configured to, after the determining unit 1110 determines that the UE is in the overlapping region, transmit a shared user equipment-specific identity, SDUI, to the UE and each TP in a first set of TPs, the SDUI being used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE in the overlapping region, the first set of TPs being a set of TPs allocated by a controller 1100 of the radio access network for the UE to measure uplink reference signals transmitted by the UE, the first set of TPs including a TP in the first super cell and a TP in the second super cell;

a receiving unit 1130, configured to receive a measurement report from each TP in the first set of TPs, where the measurement report of each TP is used to indicate quality of the uplink reference signal detected by each TP;

an updating unit 1140, 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.

Optionally, as an embodiment, the sending unit 1120 is further configured to, before the UE moves to the overlapping area, send, by the controller 1100 of the radio access network, a first dedicated user equipment identity, DUI, to the UE and to each TP in a third set of TPs, the first DUI being used for identifying the UE in the first super cell, the TPs in the third set of TPs being all TPs in the first super cell, the TPs in the third set of TPs measuring uplink reference signals sent by the UE based on the first DUI; the determining unit 1110 is specifically configured to determine that the UE is in the overlapping area according to a measurement report of a TP in the third set of TPs.

Optionally, as an embodiment, the updating unit 1140 is further configured to add the TPs in the second super cell to the third set of TPs, and use the third set of TPs to which the TPs in the second super cell are added as the first set of TPs.

Optionally, as an embodiment, the determining unit 1110 is further configured to determine to handover the UE to the second super cell according to a measurement report of a TP in the first set of TPs; the sending unit 1120 is further configured to send a handover command to the UE, where the handover command is used to instruct the UE to handover to the second super cell.

Optionally, as an embodiment, the handover command includes at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE in the second super cell.

Optionally, as an embodiment, the UE is an active UE, and the sending unit 1120 is further configured to send the SDUI to a TP in a second set of TPs, where the second set of TPs is a set of TPs allocated by the controller 1100 of the radio access network for the UE to perform data communication with the UE; the updating unit 1140 is further configured to update the second set of TPs according to measurement reports of TPs in the first set of TPs; the sending unit 1120 is specifically configured to send the SDUI to the UE through the TPs in the second set of TPs.

Fig. 12 is a schematic structural diagram of a UE of an embodiment of the present invention. It should be understood that the UE1200 of fig. 12 is capable of implementing the various steps performed by the UE in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity. The UE1200 includes:

a receiving unit 1210, configured to receive a shared user equipment specific identity, SDUI, sent by a controller of a radio access network, where the UE1200 belongs to a first super cell, and the UE1200 is in an overlapping area of the first super cell and a second super cell, where the first super cell and the second super cell each include multiple transmission points, TPs, and the SDUI is used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE1200 in the overlapping area;

a generating unit 1220, configured to generate an uplink reference signal according to the SDUI received by the receiving unit 1210;

a sending unit 1230, configured to send the uplink reference signal generated by the generating unit 1220, so that a controller of the radio access network updates the first TP set based on a measurement report of a TP in a first TP set, where the first TP set is a set of TPs allocated by the controller of the radio access network for the UE1200 to measure the uplink reference signal sent by the UE1200, the first TP set includes TPs in the first super cell and TPs in the second super cell, and a measurement report of each TP in the first TP set is used to indicate quality of the uplink reference signal.

Optionally, as an embodiment, the receiving unit 1210 is further configured to receive, before the UE1200 moves to the overlapping area, a first dedicated user equipment identity, DUI, and a third set of TPs, which are allocated by a controller of the radio access network for the UE1200, where the first DUI is used to identify the UE1200 in the first super cell, and the TPs in the third set of TPs are all TPs 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 TPs in the third TP set measure the uplink reference signal sent by the UE 1200.

Optionally, as an embodiment, 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 UE1200 to handover to the second super cell, and the handover command includes at least one of the following parameters: a Time Advance (TA) value used for uplink synchronization of the UE1200 and a TP in the second super cell, and a second DUI used for identifying the UE1200 in the second super cell.

Optionally, as an embodiment, the UE1200 is an active UE, and the UE1200 further includes: a data communication unit, configured to perform data communication with TPs in a second set of TPs according to the SDUI, where the second set of TPs is a set of TPs allocated by a controller of the radio access network for the UE1200 to perform data communication with the UE 1200.

Fig. 13 is a schematic structural diagram of a TP of the embodiment of the present invention. It should be understood that the TP1300 of fig. 13 is capable of implementing the various steps performed by the TP in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity. The TP1300 comprises:

a receiving unit 1310, configured to receive a shared user equipment-specific identity SDUI of the UE from 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 a second super cell, the first super cell and the second super cell each include multiple TPs, the SDUI is used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE in the overlapping area, the first set of TPs is a set of TPs allocated by the controller of the radio access network for the UE to measure uplink reference signals sent by the UE, and the first set of TPs includes a TP in the first super cell and a TP in the second super cell;

a measuring unit 1320, configured to measure an uplink reference signal sent by the UE according to the SDUI received by the receiving unit;

a sending unit 1330, configured to send, according to the measurement of the uplink reference signal by the measuring unit 1320, a measurement report for indicating the 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.

Optionally, as an embodiment, the receiving unit 1310 is further configured to receive first indication information sent by a controller of the radio access network, where the first indication information is used to instruct the controller of the radio access network to delete the target TP1300 from the first TP set; the target TP1300 further includes: a stopping unit, configured to stop measuring the uplink reference signal sent by the UE after the receiving unit receives the first indication information.

Optionally, as an embodiment, 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 instruct the controller of the radio access network to add the target TP1300 to the second TP set; the target TP1300 further includes: a data communication unit, configured to perform data communication with the UE after the receiving unit receives the second indication information.

Optionally, as an embodiment, 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 instruct the controller of the radio access network to delete the target TP1300 from the second TP set.

Fig. 14 is a schematic configuration diagram of a controller of a radio access network of an embodiment of the present invention. It should be understood that the controller 1400 of the radio access network of fig. 14 is capable of implementing the various steps performed by the controller of the radio access network in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity. The controller 1400 of the radio access network includes:

a memory 1410 for storing programs;

a processor 1420 configured to execute a program, when the program is executed, the processor 1420 determines that a user equipment, UE, is in an overlapping area of a first super cell and a second super cell, the UE belonging to the first super cell, the first super cell and the second super cell each including a plurality of transmission points, TPs;

a transceiver 1430 for, after the processor 1420 determines that the UE is in the overlapping region, transmitting a shared user equipment-specific identity, SDUI, to the UE and each TP in a first set of TPs, the SDUI for the TPs in the first super cell and the TPs in the second super cell to collectively identify the UE in the overlapping region, the first set of TPs being a set of TPs allocated by a controller 1400 of the radio access network for the UE to measure uplink reference signals transmitted by the UE, the first set of TPs including the TPs in the first super cell and the TPs in the second super cell; receiving a measurement report from each TP in the first set of TPs, the measurement report for each TP indicating a quality of the uplink reference signal detected by the each TP;

the processor 1420 is further configured to update the first set of TPs according to measurement reports for TPs in the first set of TPs received from the transceiver 1430.

Optionally, as an embodiment, the transceiver 1430 is further configured to, before the UE moves to the overlapping area, the controller 1400 of the radio access network transmits a first dedicated user equipment identity, DUI, to the UE and to each TP in a third set of TPs, the first DUI being used to identify the UE in the first super cell, the TPs in the third set of TPs being all TPs in the first super cell, the TPs in the third set of TPs measuring uplink reference signals transmitted by the UE based on the first DUI; the processor 1420 is specifically configured to determine that the UE is in the overlap region based on measurement reports of TPs in the third set of TPs.

Optionally, as an embodiment, the processor 1420 is further configured to add the TP in the second super cell to the third set of TPs, and use the third set of TPs to which the TP in the second super cell is added as the first set of TPs.

Optionally, as an embodiment, the processor 1420 is further configured to determine to handover the UE to the second super cell according to a measurement report of a TP of the first set of TPs; the transceiver 1430 is further configured to send a handover command to the UE, where the handover command is used to instruct the UE to handover to the second super cell.

Optionally, as an embodiment, the UE is an active UE, and the transceiver 1430 is further configured to send the SDUI to a TP in a second set of TPs allocated by the controller 1400 of the radio access network for data communication with the UE; the processor 1420 is further configured to update the second set of TPs according to measurement reports for TPs in the first set of TPs; the transceiver 1430 is specifically configured to transmit the SDUI to the UE via the TPs in the second set of TPs.

Fig. 15 is a schematic structural diagram of a UE of an embodiment of the present invention. It should be understood that the UE 1500 of fig. 15 is capable of implementing the various steps performed by the UE in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity.

The UE 1500 includes:

a memory 1510 for storing a program;

a transceiver 1520, configured to receive a shared user equipment-specific identity (SDUI) sent by a controller of a radio access network, where the UE 1500 belongs to a first super cell, and the UE 1500 is in an overlapping area of the first super cell and a second super cell, where the first super cell and the second super cell each include multiple Transmission Points (TPs), and the SDUI is used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE 1500 in the overlapping area;

a processor 1530, 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 a controller of the radio access network updates a first set of TPs allocated by the controller of the radio access network for the UE 1500 for measuring the uplink reference signal sent by the UE 1500, based on measurement reports of TPs in the first set of TPs, the first set of TPs including TPs in the first super cell and TPs in the second super cell, the measurement report of each TP in the first set of TPs being used for indicating quality of the uplink reference signal.

Optionally, as an embodiment, the transceiver 1520 is further configured to receive, before the UE 1500 moves to the overlapping area, a first dedicated user equipment identity, DUI, and a third set of TPs, which are allocated by a controller of the radio access network for the UE 1500, the first DUI being used for identifying the UE 1500 in the first super cell, and the TPs in the third set of TPs being TPs that in the first super cell; the transceiver 1520 is further configured to transmit an uplink reference signal according to the first DUI, so that TPs in the third set of TPs measure the uplink reference signal transmitted by the UE 1500.

Optionally, as an embodiment, 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 handover to the second super cell, and the handover command includes at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE 1500 and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE 1500 in the second super cell.

Optionally, as an embodiment, the UE 1500 is an active UE, and the transceiver 1520 is further configured to perform data communication with TPs in a second set of TPs according to the SDUI, where the second set of TPs is a set of TPs allocated by a controller of the radio access network for the UE 1500 to perform data communication with the UE 1500.

Fig. 16 is a schematic structural diagram of a TP of the present embodiment. It should be understood that the TP 1600 of fig. 16 is capable of implementing the various steps performed by the TP in fig. 1-10, and duplicate descriptions are omitted as appropriate for the sake of brevity.

The TP 1600 comprises:

a memory 1610 for storing programs;

a transceiver 1620 configured to receive a shared user equipment specific identity (SDUI) of the UE from a controller of a radio access network, the UE belongs to a first super cell, the UE is in an overlapping area of the first super cell and a second super cell, the first super cell and the second super cell each include a plurality of TPs, the SDUI is used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE in the overlapping area, the first set of TPs is a set of TPs allocated for the UE by the controller of the radio access network to measure uplink reference signals sent by the UE, and the first set of TPs includes the TPs in the first super cell and the TPs in the second super cell;

a processor 1630, 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 a measurement report indicating quality of the uplink reference signal to a controller of the radio access network according to the measurement of the uplink reference signal by the processor 1630, so that the controller of the radio access network updates the first TP set according to the measurement report.

Optionally, as an embodiment, the transceiver 1620 is further configured to receive first indication information sent by a controller of the radio access network, where the first indication information is used to instruct the controller of the radio access network to delete the target TP 1600 from the first TP set; the processor 1630 is further configured to stop measuring the uplink reference signal sent by the UE after the transceiver 1620 receives the first indication information.

Optionally, as an embodiment, 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 instruct the controller of the radio access network to add the target TP 1600 to the second TP set; performing data communication with the UE after the receiving unit receives the second indication information.

Optionally, as an embodiment, 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 instruct the controller of the radio access network to delete the target TP 1600 from the second TP set.

Fig. 17 is a schematic configuration diagram of a system chip of the 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, where the input interface 1710, the output interface 1720, the processor 1730, and the memory 1740 are connected via 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 performed by the controller of the radio access network in fig. 1-10.

Fig. 18 is a schematic configuration diagram of a system chip of the 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, wherein the input interface 1810, the output interface 1820, the processor 1830, and the memory 1840 are connected via a bus, and 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 fig. 1-10.

Fig. 19 is a schematic configuration diagram of a system chip of the 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, wherein the input interface 1910, the output interface 1920, the processor 1930, and the memory 1940 are connected via 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 fig. 1-10.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A communication method applied to a super cell, comprising:

a controller of a radio access network sends a first dedicated user equipment identity (DUI) to User Equipment (UE) and each TP in a third Transmission Point (TP) set, wherein the first DUI is used for identifying the UE in a first super cell, the TPs in the third TP set are all TPs in the first super cell, the TPs in the third TP set measure uplink reference signals sent by the UE based on the first DUI, and the UE belongs to the first super cell;

determining, by a controller of the radio access network, that the UE is in an overlapping area of the first super cell and a second super cell according to a measurement report of a TP in the third set of TPs, the first super cell and the second super cell each including a plurality of Transmission Points (TPs);

the controller of the radio access network sends a shared user equipment (SDUI) to the UE and each TP in a first TP set, wherein the SDUI is used for the TP in the first super cell and the TP in the second super cell to jointly identify the UE in the overlapping area, the first TP set is a TP set which is allocated for the UE by the controller of the radio access network and is used for measuring an uplink reference signal sent by the UE, and the first TP set comprises the TP in the first super cell and the TP in the second super cell;

a controller of the radio access network receiving a measurement report from each TP in the first set of TPs, the measurement report for each TP indicating a quality of the uplink reference signal detected by the each TP;

a controller of the radio access network updates the first set of TPs according to measurement reports for TPs in the first set of TPs.

2. The method of claim 1, wherein the method further comprises:

a controller of the radio access network adds the TPs in the second super cell to the third set of TPs, and sets the third set of TPs to which the TPs in the second super cell are added as the first set of TPs.

3. The method of claim 2, wherein the method further comprises:

a controller of the radio access network determines to handover the UE to the second super cell according to a measurement report of a TP in the first set of TPs;

and the controller of the radio access network sends a switching command to the UE, wherein the switching command is used for indicating the UE to be switched to the second super cell.

4. The method of claim 3, wherein the handover command includes at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE in the second super cell.

5. The method of any one of claims 1-4, wherein the UE is an active UE, the method further comprising:

the controller of the radio access network sending the SDUI to a TP in a second set of TPs, the second set of TPs being a set of TPs allocated by the controller of the radio access network for the UE to communicate data with the UE;

a controller of the radio access network updates the second set of TPs according to measurement reports of the TPs in the first set of TPs;

the controller of the radio access network sending the SDUI to the UE, comprising:

a controller of the radio access network sends the SDUI to the UE through the TPs of the second set of TPs.

6. A communication method applied to a super cell, comprising:

user Equipment (UE) receives a first private user equipment identity (DUI) and a third TP set which are allocated to the UE by a controller of a radio access network, wherein the first DUI is used for identifying the UE in a first super cell, and TPs in the third TP set are all TPs in the first super cell;

the UE sends an uplink reference signal according to the first DUI, so that TPs in the third TP set measure the uplink reference signal sent by the UE;

the UE receives a shared user equipment dedicated identity (SDUI) sent by a controller of the radio access network, the UE belongs to the first super cell and is in an overlapping area of the first super cell and a second super cell, the first super cell and the second super cell both comprise a plurality of Transmission Points (TPs), and the SDUI is used for identifying the UE in the overlapping area by the TP in the first super cell and the TP in the second super cell together, wherein the UE in the overlapping area of the first super cell and the second super cell is determined by the controller of the radio access network according to a measurement report of the TP in the third set of TPs;

the UE generates an uplink reference signal according to the SDUI;

the UE sends the uplink reference signal, so that a controller of the radio access network updates the first TP set based on a measurement report of a TP in a first TP set, wherein the first TP set is a TP set which is allocated to the UE by the controller of the radio access network and used for measuring the uplink reference signal sent by the UE, the first TP set comprises the TP in the first super cell and the TP in the second super cell, and the measurement report of each TP in the first TP set is used for indicating the quality of the uplink reference signal.

7. The method of claim 6, wherein the method further comprises:

the UE receives a handover command sent by a controller of the radio access network, wherein the handover command is used for instructing the UE to handover to the second super cell, and the handover command comprises at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE in the second super cell.

8. The method of claim 6 or 7, wherein the UE is an active UE, the method further comprising:

and the UE carries out data communication with the TPs in a second TP set according to the SDUI, wherein the second TP set is the TP set which is distributed for the UE by a controller of the wireless access network and is used for carrying out data communication with the UE.

9. A communication method applied to a super cell, comprising:

receiving, by any target Transmission Point (TP) in a first Transmission Point (TP) set, a shared user equipment (SDUI) of a User Equipment (UE) from a controller of a radio access network, wherein the UE belongs to a first super cell and is in an overlapping region of the first super cell and a second super cell, the first super cell and the second super cell both include multiple TPs, the SDUI is used for identifying the UE in the overlapping region together with the TPs in the first super cell and the TPs in the second super cell, the first TP set is a set of TPs allocated by the controller of the radio access network for the UE to measure uplink reference signals sent by the UE, the first TP set includes the TPs in the first super cell and the TPs in the second super cell, and the UE is in the overlapping region of the first super cell and the second super cell is the controller of the radio access network according to the shared user equipment (SDUI) of the TPs in a third set of TPs All TPs in the third set of TPs are TPs in the first super cell;

the target TP measures an uplink reference signal sent by the UE according to the SDUI;

and the target TP sends a measurement report used for indicating the quality of the uplink reference signal to a controller of the wireless access network, so that the controller of the wireless access network updates the first TP set according to the measurement report.

10. The method of claim 9, wherein the method further comprises:

the target TP receives first indication information sent by a controller of the radio access network, wherein the first indication information is used for indicating the controller of the radio access network to delete the target TP from the first TP set;

and the target TP stops measuring the uplink reference signal sent by the UE.

11. The method of claim 9 or 10, wherein the method further comprises:

the target TP receiving second indication information from a controller of the radio access network, the second indication information being used for indicating the controller of the radio access network to add the target TP to a second TP set, the second TP set being a TP set allocated for the UE by the controller of the radio access network for data communication with the UE;

the target TP is in data communication with the UE.

12. The method of claim 11, wherein the method further comprises:

the target TP receives third indication information from a controller of the radio access network, the third indication information being used for indicating the controller of the radio access network to delete the target TP from the second TP set.

13. A controller of a radio access network, comprising:

a sending unit, configured to send a first dedicated user equipment identity, DUI, to user equipment, UE, and each TP in a third set of transmission points, TPs, where the first DUI is used to identify the UE in a first super cell, the TPs in the third set of TPs are all TPs in the first super cell, and the TPs in the third set of TPs measure, based on the first DUI, an uplink reference signal sent by the UE;

a determining unit, configured to determine, according to a measurement report of a TP in the third TP set, that the UE is in an overlapping area of the first super cell and a 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, TPs;

the sending unit is further configured to send, after the determining unit determines that the UE is in the overlapping region, a shared user equipment-specific identity (SDUI) to the UE and each TP in a first set of TPs, the SDUI being used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE in the overlapping region, the first set of TPs being a set of TPs allocated by a controller of the radio access network for the UE to measure uplink reference signals sent by the UE, the first set of TPs including a TP in the first super cell and a TP in the second super cell;

a receiving unit, configured to receive a measurement report from each TP in the first set of TPs, where the measurement report for each TP is used to indicate quality of the uplink reference signal detected by each TP;

an updating unit, 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.

14. The controller of the radio access network of claim 13, wherein the updating unit is further configured to add TPs in the second super cell to the third set of TPs, and to treat the third set of TPs with TPs in the second super cell added as the first set of TPs.

15. The controller of a radio access network of claim 14, wherein the determining unit is further configured to determine to handover the UE to the second super cell based on measurement reports of TPs in the first set of TPs; the sending unit is further configured to send a handover command to the UE, where the handover command is used to instruct the UE to handover to the second super cell.

16. The controller of a radio access network of claim 15, wherein the handover command includes at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE in the second super cell.

17. The controller of the radio access network of any one of claims 13-16, wherein the UE is an active UE, the sending unit is further configured to send the SDUI to a TP of a second set of TPs allocated by the controller of the radio access network for the UE for data communication with the UE; the updating unit is further configured to update the second set of TPs according to measurement reports of TPs in the first set of TPs; the sending unit is specifically configured to send the SDUI to the UE through the TPs in the second set of TPs.

18. A User Equipment (UE), comprising:

a receiving unit, configured to receive a first dedicated user equipment identity, DUI, and a third set of transmission points, TPs, allocated by a controller of a radio access network for the UE, where the first DUI is used to identify the UE in a first super cell, and TPs in the third set of TPs are all TPs in the first super cell;

a sending unit, configured to send an uplink reference signal according to the first DUI, so that a TP in the third TP set measures the uplink reference signal sent by the UE;

the receiving unit is further configured to receive a shared user equipment dedicated identity (SDUI) sent by a controller of the radio access network, where the UE belongs to a first super cell and is in an overlapping area of the first super cell and a second super cell, the first super cell and the second super cell each include multiple TPs, and the SDUI is used for a TP in the first super cell and a TP in the second super cell to jointly identify the UE in the overlapping area, where the overlapping area where the UE is in the first super cell and the second super cell is determined by the controller of the radio access network according to a measurement report of the TPs in the third set of TPs;

a generating unit, configured to generate an uplink reference signal according to the SDUI received by the receiving unit;

the sending unit is further configured to send the uplink reference signal generated by the generating unit, so that a controller of the radio access network updates the first set of TPs based on measurement reports of TPs in a first set of TPs, where the first set of TPs is a set of TPs allocated by the controller of the radio access network for measuring the uplink reference signal sent by the UE, the first set of TPs includes TPs in the first super cell and TPs in the second super cell, and a measurement report of each TP in the first set of TPs is used for indicating quality of the uplink reference signal.

19. The UE of claim 18, wherein the receiving unit is further configured to receive a handover command sent by a controller of the radio access network, the handover command being used to instruct the UE to handover to the second super cell, the handover command including at least one of the following parameters: a Time Advance (TA) value and a second DUI, wherein the TA value is used for uplink synchronization of the UE and a Transport Protocol (TP) in the second super cell, and the second DUI is used for identifying the UE in the second super cell.

20. The UE of claim 18 or 19, wherein the UE is an active UE, the UE further comprising:

a data communication unit, configured to perform data communication with TPs in a second set of TPs according to the SDUI, where the second set of TPs is a set of TPs allocated by a controller of the radio access network for the UE to perform data communication with the UE.

21. A Transmission Point (TP) is any one target TP in a first set of TPs, and the target TP comprises:

a receiving unit, configured to receive a shared user equipment-specific identity (SDUI) of a User Equipment (UE) from a controller of a radio access network, the UE belonging to a first super cell and the UE being in an overlapping area of the first super cell and a second super cell, the first super cell and the second super cell each including a plurality of TPs, the SDUI being used for the TPs in the first super cell and the TPs in the second super cell to jointly identify the UE in the overlapping area, the first set of TPs being a set of TPs allocated by the controller of the radio access network for the UE to measure uplink reference signals transmitted by the UE, the first set of TPs including the TPs in the first super cell and the TPs in the second super cell, wherein the overlapping area of the UE in the first super cell and the second super cell is determined by the controller of the radio access network according to a measurement report of the TPs in a third set of TPs, the TPs in the third set of TPs are all TPs in the first super cell;

a measuring unit, configured to measure, according to the SDUI received by the receiving unit, an uplink reference signal sent by the UE;

a sending unit, configured to send, according to the measurement of the uplink reference signal by the measurement unit, a measurement report used for indicating the 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.

22. The TP of claim 21, wherein the receiving unit is further configured to receive first indication information sent by a controller of the radio access network, the first indication information being used to instruct the controller of the radio access network to delete the target TP from the first set of TPs;

the target TP further includes:

a stopping unit, configured to stop measuring the uplink reference signal sent by the UE after the receiving unit receives the first indication information.

23. The TP of claim 21 or 22, wherein the receiving unit is further configured to receive second indication information from a controller of the radio access network, the second indication information being used to instruct the controller of the radio access network to add the target TP to a second set of TPs allocated by the controller of the radio access network for the UE for data communication with the UE;

the target TP further includes:

a data communication unit, configured to perform data communication with the UE after the receiving unit receives the second indication information.

24. The TP of claim 23, wherein the receiving unit is further configured to receive third indication information from a controller of the radio access network, the third indication information being used to instruct the controller of the radio access network to delete the target TP from the second set of TPs.