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WO2023273967A1 - 小区指示、小区切换方法、装置、服务节点、终端及介质 - Google Patents

小区指示、小区切换方法、装置、服务节点、终端及介质 Download PDF

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Publication number
WO2023273967A1
WO2023273967A1 PCT/CN2022/100211 CN2022100211W WO2023273967A1 WO 2023273967 A1 WO2023273967 A1 WO 2023273967A1 CN 2022100211 W CN2022100211 W CN 2022100211W WO 2023273967 A1 WO2023273967 A1 WO 2023273967A1
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WO
WIPO (PCT)
Prior art keywords
cell
downlink control
control information
target cell
information
Prior art date
Application number
PCT/CN2022/100211
Other languages
English (en)
French (fr)
Inventor
徐万夫
谢峰
李�杰
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP22831785.5A priority Critical patent/EP4366377A1/en
Priority to CA3224086A priority patent/CA3224086A1/en
Priority to US18/574,709 priority patent/US20240306052A1/en
Publication of WO2023273967A1 publication Critical patent/WO2023273967A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/142—Reselecting a network or an air interface over the same radio air interface technology

Definitions

  • the present application relates to the technical field of wireless communication, for example, to a cell indication, cell handover method, device, service node, terminal, and medium.
  • the new air interface defines three radio resource control (Radio Resource Control, RRC) states of the terminal: idle state (RRC_IDLE), sleep state (RRC_INACTIVE) and connected state (RRC_CONNECTED).
  • RRC Radio Resource Control
  • the mobility management of the terminal in the connected state includes handover management between cells and handover management between beams within the cell.
  • the handover between cells is controlled by RRC signaling and depends on Radio Resource Management (RRM) and measure.
  • RRM Radio Resource Management
  • the communication quality between the terminal and the serving cell is poor, and the RRC signaling overhead is large and the transmission time is long, which will cause the terminal to fail to receive the handover instruction sent by the network side, which will lead to a long service interruption time during the handover process. long, or even fail to switch.
  • the present application provides a cell indication, a cell switching method, a device, a service node, a terminal and a medium, so as to improve the reliability of the indication and the success rate of cell switching.
  • An embodiment of the present application provides a method for indicating a cell, including: downlink control information (Downlink Control Information, DCI), where the downlink control information is used to indicate information of a target cell; and sending the downlink control information to a terminal.
  • DCI Downlink Control Information
  • the embodiment of the present application also provides a cell handover method, including: receiving downlink control information, where the downlink control information is used to indicate information of a target cell; and switching a serving cell to the target cell according to the downlink control information.
  • the embodiment of the present application also provides a device for indicating a cell, including: a generating module configured to generate downlink control information, the downlink control information is used to indicate information of a target cell; a sending module configured to send the downlink control information to the terminal.
  • the embodiment of the present application also provides a cell handover device, including: a receiving module, configured to receive downlink control information, the downlink control information is used to indicate the information of the target cell; a handover module, configured to transfer the The serving cell is handed over to the target cell.
  • the embodiment of the present application also provides a serving node, including: a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the above cell indication method when executing the program.
  • the embodiment of the present application also provides a terminal, including: a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor implements the above cell handover method when executing the program.
  • the embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the program is executed by a processor, the above cell indication method or cell handover method is implemented.
  • FIG. 1 is a flow chart of a cell indication method provided by an embodiment
  • FIG. 2 is a schematic diagram of downlink control information provided by an embodiment
  • FIG. 3 is a schematic diagram of another downlink control information provided by an embodiment
  • Fig. 4 is a schematic diagram of another kind of downlink control information provided by an embodiment
  • FIG. 5 is a flow chart of a cell handover method provided by an embodiment
  • FIG. 6 is a schematic structural diagram of a device for indicating a cell provided by an embodiment
  • FIG. 7 is a schematic structural diagram of a cell handover device provided by an embodiment
  • FIG. 8 is a schematic diagram of a hardware structure of a service node provided by an embodiment
  • Fig. 9 is a schematic diagram of a hardware structure of a terminal provided by an embodiment.
  • a method for indicating a cell is provided.
  • the downlink control information is used to indicate the target cell to be handed over to the terminal, and the reliability and reliability of the indication are improved.
  • the success rate of cell handover is improved.
  • Fig. 1 is a flow chart of a method for indicating a cell provided by an embodiment.
  • the method can be applied to service nodes, such as base stations, network side nodes, scheduling nodes and so on.
  • service nodes such as base stations, network side nodes, scheduling nodes and so on.
  • the method provided in this embodiment includes step 110 and step 120 .
  • step 110 downlink control information is generated, and the downlink control information is used to indicate the information of the target cell.
  • step 120 the downlink control information is sent to the terminal.
  • the serving node can determine the communication quality between the terminal and the currently connected serving cell according to the connection with the terminal, channel status, location relationship, etc., and then decide whether to switch the serving cell for the terminal, and determine whether it is possible to The target cell that continues to serve the terminal after handover. On this basis, the serving node indicates the information of the target cell to the terminal through downlink control information, thereby instructing the terminal to switch from the current serving cell to the target cell.
  • the information of the target cell is indicated through the downlink control information
  • the signaling overhead of the downlink control information is small, the transmission is fast, and the transmission success rate is high, so the reliability of the indication of switching the serving cell can be guaranteed.
  • the terminal can quickly switch the serving cell to the target cell according to the downlink control information, thereby reducing service interruption time and ensuring the success rate of switching.
  • the downlink control information is generated according to the measurement information reported by the terminal.
  • the terminal can measure the channel state between the terminal and the serving node and report the measurement information to the serving node. Based on this, the serving node can determine the communication quality between the terminal and the currently connected serving cell, and then decide whether to switch the serving cell , and determine a target cell that can continue to provide services for the terminal after the handover.
  • the downlink control information includes at least one of the following:
  • RRC message media access control-control element (Media Access Control Control Element, MAC CE) information; physical downlink control channel (Physical Downlink Control Channel, PDCCH) DCI.
  • media access control-control element Media Access Control Control Element, MAC CE
  • physical downlink control channel Physical Downlink Control Channel, PDCCH
  • the downlink control information may be an RRC message; it may also be information in MAC signaling, specifically, it may be MAC CE information; it may also be PDCCH DCI.
  • the information of the target cell includes at least one of the following: the physical cell identifier (Physical Cell ID, PCI) of the target cell; the cell radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI) of the target cell ; target cell set; target cell index.
  • the physical cell identifier Physical Cell ID, PCI
  • the cell radio network temporary identifier Cell-Radio Network Temporary Identifier, C-RNTI
  • the PCI, C-RNTI, and index of each cell are unique, and the serving node indicates to the terminal one or more of the PCI, C-RNTI, and index of the target cell through downlink control information for the terminal Clarifying the serving cell to be handed over makes the way of handover instruction more flexible and efficient.
  • the target cell can also include multiple cells, and the information of the target cell includes a set of target cells, and the terminal can switch to a target cell in the set of target cells.
  • Fig. 2 is a schematic diagram of downlink control information provided by an embodiment.
  • Oct represents a byte (Byte), and a byte includes 8 bits (Bit).
  • 5 bits "R" in Oct1 indicate a reserved field, and the remaining bits can be used to indicate the index of the target cell, and the length of the index field of the target cell is 3 bits.
  • the target cell may be a Conditional Handover (CHO) cell, that is, the terminal may be handed over to the target cell only when a set condition is met.
  • CHO Conditional Handover
  • Fig. 3 is a schematic diagram of another type of downlink control information provided by an embodiment.
  • 6 bits in Oct1 are reserved fields, and other bits and bits in Oct2 can be used to indicate the PCI of the target cell, and the length of the PCI field is 10 bits.
  • the PCI field may be a physical cell identifier (PhysCellId) specified in technical specifications TS 38.331 and/or 3GPP TS 37.355 of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP).
  • Fig. 4 is a schematic diagram of another type of downlink control information provided by an embodiment.
  • 6 bits are reserved fields in Oct1, and the remaining bits and bits in Oct2 can be used to indicate the PCI of the target cell, and the length of the PCI field is 10 bits; in addition, the bits in Oct3 and Oct4 are all It can be used to indicate the C-RNTI of the target cell, that is, the length of the C-RNTI field is 16 bits.
  • the C-RNTI field may specifically include the C-RNTI of the MAC entity.
  • the PCI includes a PCI field value or a PCI index.
  • the content of the PCI may be a specific PCI field value or a PCI index. If the content of the PCI is a specific PCI field value, the PCI indicated in the downlink control information is the physical cell identifier of the target cell, which can directly indicate the target cell; There is a first mapping relationship between the indexes, and the terminal can query the first mapping relationship according to the PCI index indicated in the downlink control information to obtain the PCI field value corresponding to the PCI index, so as to determine the physical cell identity of the target cell, in this case , the PCI index may indirectly indicate the target cell.
  • the C-RNTI includes a C-RNTI field value or a C-RNTI index.
  • the content of the C-RNTI may be a specific C-RNTI field value, or a C-RNTI index. If the content of C-RNTI is a specific C-RNTI field value, the C-RNTI indicated in the downlink control information is the temporary identifier of the target cell, which can directly indicate the target cell; if the content of C-RNTI is C-RNTI index, there is a second mapping relationship between each field value of the C-RNTI and the C-RNTI index, and the terminal can query the second mapping relationship according to the C-RNTI index indicated in the downlink control information to obtain the C-RNTI index corresponding to In this case, the C-RNTI index can indirectly indicate the target cell.
  • the set of target cells is sent through an RRC message or a MAC CE message; the RRC message is an existing cell or a newly added cell.
  • the information of the target cell includes a set of target cells
  • the downlink control information may specifically be an RRC message or a MAC CE message, wherein, for the RRC message, an existing information element or a new information element may be used to indicate the set of target cells .
  • the existing information element refers to an existing information element used to transmit other information
  • the new information element refers to a dedicated information element set for indicating a set of target cells.
  • the PDCCH DCI is configured as 1 bit, 2 bits or 3 bits by a high layer, and the PDCCH DCI is used to indicate the index of the target cell.
  • the downlink control information is specifically PDCCH DCI, which is used to indicate the index of the target cell, and the length of the PDCCH DCI is 1 bit, 2 bits or 3 bits, and the length of the PDCCH DCI can be configured by high-layer signaling, or can be preset Defined.
  • the serving node may also indicate to the terminal the switching mode of the serving cell.
  • the switching mode includes uplink and downlink switching and downlink switching, wherein the uplink and downlink switching refers to the serving cell that provides uplink services for the terminal within a specified time (uplink serving cell) and the serving cell (downlink serving cell) that provides downlink services for the terminal are both switched to the target cell; downlink switching means that within a specified time, the serving cell that provides uplink services for the terminal remains unchanged, while the terminal The serving cell providing the downlink service is switched to the target cell, so as to give priority to guaranteeing the quality of the uplink service.
  • the communication quality of uplink and downlink is taken into consideration to switch the serving cell, so that the service relationship between the serving node and the terminal and the handover mode are more flexible, and different actual needs can be met.
  • a method for cell handover is also provided, which can be applied to terminals, such as user equipment (User Equipment, UE) such as mobile phones, tablets, and computers.
  • terminals such as user equipment (User Equipment, UE) such as mobile phones, tablets, and computers.
  • UE User Equipment
  • FIG. 5 is a flow chart of a cell handover method provided by an embodiment. As shown in FIG. 5 , the method provided by this embodiment includes step 210 and step 220 .
  • step 210 downlink control information is received, the downlink control information is used to indicate the information of the target cell.
  • step 220 the serving cell is switched to the target cell according to the downlink control information.
  • the terminal switches the serving cell according to the indication of the downlink control information. Since the signaling overhead of the downlink control information is small, the transmission is fast, and the transmission success rate is high, the reliability of the indication can be guaranteed. On this basis The terminal can quickly switch to the target cell according to the downlink control information, which can reduce the service interruption time and ensure the success rate of switching.
  • the method also includes:
  • Step 200 Report measurement information, wherein the downlink control information is generated according to the measurement information.
  • the terminal can measure the channel state with the serving node and report the measurement information to the serving node, and the serving node can decide whether to switch the serving cell and indicate the target cell that can continue to provide services for the terminal after the handover information.
  • the downlink control information includes at least one of the following:
  • RRC message ; MAC CE information; PDCCH DCI.
  • the information of the target cell includes at least one of the following:
  • PCI of the target cell PCI of the target cell; C-RNTI of the target cell; set of target cells; index of the target cell.
  • the PCI includes a PCI field value or a PCI index.
  • the C-RNTI includes a C-RNTI field value or a C-RNTI index.
  • the set of target cells is sent through an RRC message or a MAC CE message; the RRC message is an existing cell or a newly added cell.
  • the PDCCH DCI is configured as 1 bit, 2 bits or 3 bits by a high layer, and the PDCCH DCI is used to indicate the index of the target cell.
  • step 220 includes:
  • the downlink control information switch the uplink and downlink serving cell to the target cell within a specified time; or,
  • the terminal can decide the switching mode according to the instruction of the serving node, or according to the pre-configuration, or independently, and complete the switching of the serving cell within a specified time. For example, both the uplink and downlink serving cells are switched to the target cell within a specified time, or only the downlink serving cell is switched to the target cell. Wherein, the designated time may be indicated by the service node. By indicating different switching modes, the service relationship and switching mode between the service node and the terminal are made more flexible, and different actual needs can be met.
  • Fig. 6 is a schematic structural diagram of a device for indicating a cell provided by an embodiment.
  • the cell indication device includes:
  • a generating module 310 configured to generate downlink control information, where the downlink control information is used to indicate the information of the target cell;
  • the sending module 320 is configured to send the downlink control information to the terminal.
  • the cell indication device in this embodiment uses downlink control information to indicate to the terminal the target cell to be handed over to, the signaling overhead of the downlink control information is small, the transmission is fast, and the transmission success rate is high, so the reliability of the indication can be guaranteed, and the terminal It can quickly switch to the target cell according to the downlink control information, which can reduce the service interruption time and ensure the success rate of switching.
  • the downlink control information is generated according to the measurement information reported by the terminal.
  • the downlink control information includes at least one of the following:
  • RRC message ; MAC CE information; PDCCH DCI.
  • the information of the target cell includes at least one of the following:
  • PCI of the target cell PCI of the target cell; C-RNTI of the target cell; set of target cells; index of the target cell.
  • the PCI includes a PCI field value or a PCI index.
  • the C-RNTI includes a C-RNTI field value or a C-RNTI index.
  • the set of target cells is sent through an RRC message or a MAC CE message; the RRC message is an existing cell or a newly added cell.
  • the PDCCH DCI is configured as 1 bit, 2 bits or 3 bits by a high layer, and the PDCCH DCI is used to indicate the index of the target cell.
  • the cell indication device proposed in this embodiment and the cell indication method proposed in the above embodiments belong to the same inventive concept.
  • this embodiment is equipped with and executes a cell indication method. Same beneficial effect.
  • Fig. 7 is a schematic structural diagram of a cell handover device provided by an embodiment. As shown in Figure 7, the cell switching device includes:
  • the receiving module 410 is configured to receive downlink control information, where the downlink control information is used to indicate the information of the target cell;
  • the switching module 420 is configured to switch the serving cell to the target cell according to the downlink control information.
  • the cell handover device in this embodiment performs the handover of the serving cell according to the indication of the downlink control information. Since the signaling overhead of the downlink control information is small, the transmission is fast, and the transmission success rate is high, the reliability of the indication can be guaranteed, and the Quickly switch to the target cell according to the downlink control information, which can reduce the service interruption time and ensure the success rate of switching.
  • the device also includes:
  • the reporting module 4 is configured to report measurement information, wherein the downlink control information is generated according to the measurement information.
  • the downlink control information includes at least one of the following:
  • RRC message ; MAC CE information; PDCCH DCI.
  • the information of the target cell includes at least one of the following:
  • PCI of the target cell PCI of the target cell; C-RNTI of the target cell; set of target cells; index of the target cell.
  • the PCI includes a PCI field value or a PCI index.
  • the C-RNTI includes a C-RNTI field value or a C-RNTI index.
  • the set of target cells is sent through an RRC message or a MAC CE message; the RRC message is an existing cell or a newly added cell.
  • the PDCCH DCI is configured as 1 bit, 2 bits or 3 bits by a high layer, and the PDCCH DCI is used to indicate the index of the target cell.
  • the switching module 420 is configured to:
  • the downlink control information switch the uplink and downlink serving cell to the target cell within a specified time; or,
  • the cell switching device proposed in this embodiment and the cell switching method proposed in the above-mentioned embodiments belong to the same inventive concept, and the technical details not described in this embodiment can be referred to any of the above-mentioned embodiments, and this embodiment has a method for performing cell switching Same beneficial effect.
  • FIG. 8 is a schematic diagram of the hardware structure of a service node provided in an embodiment.
  • the service node provided in the embodiment of the present application includes a memory 52, a processor 51 and a computer program stored in the memory and operable on the processor, when the processor 51 executes the program, implements the above cell indication method.
  • the service node may also include a memory 52; there may be one or more processors 51 in the service node, and one processor 51 is taken as an example in FIG. 8; the memory 52 is used to store one or more programs; the one or more This program is executed by the one or more processors 51, so that the one or more processors 51 implement the method for indicating a cell as described in the embodiment of the present application.
  • the service node also includes: a communication device 53 , an input device 54 and an output device 55 .
  • the processor 51, the memory 52, the communication device 53, the input device 54 and the output device 55 in the service node may be connected through a bus or in other ways. In FIG. 8, connection through a bus is taken as an example.
  • the input device 54 can be used to receive input numbers or character information, and generate key signal input related to user setting and function control of the service node.
  • the output device 55 may include a display device such as a display screen.
  • the communication device 53 may include a receiver and a transmitter.
  • the communication device 53 is configured to perform information sending and receiving communication according to the control of the processor 51 .
  • the memory 52 can be set to store software programs, computer-executable programs and modules, such as the program instructions/modules corresponding to the cell indication method described in the embodiment of the present application (for example, the generation in the cell indication device) module 310 and sending module 320).
  • the memory 52 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the service node, and the like.
  • the memory 52 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices.
  • the memory 52 may further include a memory that is remotely located relative to the processor 51, and these remote memories may be connected to the service node through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • FIG. 9 is a schematic diagram of the hardware structure of a terminal provided in an embodiment.
  • the terminal provided in the present application includes a memory 62, a processor 61, and a A computer program that can run on the processor, and the processor 61 implements the above-mentioned cell handover method when executing the program.
  • the terminal may also include a memory 62; there may be one or more processors 61 in the terminal, and one processor 61 is taken as an example in FIG. 9; the memory 62 is used to store one or more programs; the one or more programs Executed by the one or more processors 61, so that the one or more processors 61 implement the cell handover method described in the embodiment of this application.
  • the terminal also includes: a communication device 63 , an input device 64 and an output device 65 .
  • the processor 61, the memory 62, the communication device 63, the input device 64 and the output device 65 in the terminal may be connected through a bus or in other ways. In FIG. 9, connection through a bus is taken as an example.
  • the input device 64 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the terminal.
  • the output device 65 may include a display device such as a display screen.
  • the communication device 63 may include a receiver and a transmitter.
  • the communication device 63 is configured to perform information sending and receiving communication according to the control of the processor 61 .
  • the memory 62 can be configured to store software programs, computer-executable programs and modules, such as the program instructions/modules corresponding to the cell handover method described in the embodiment of the present application (for example, the receiver in the cell handover device module 410 and switching module 420).
  • the memory 62 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the terminal, and the like.
  • the memory 62 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices.
  • the memory 62 may further include a memory that is remotely located relative to the processor 61, and these remote memories may be connected to the terminal through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the embodiment of the present application further provides a storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, the cell indication method or the cell handover method described in any one of the embodiments of the present application is implemented.
  • the method for indicating a cell includes: generating downlink control information, where the downlink control information is used to indicate information of a target cell; and sending the downlink control information to a terminal.
  • the cell switching method includes: receiving downlink control information, where the downlink control information is used to indicate information of a target cell; and switching a serving cell to the target cell according to the downlink control information.
  • the computer storage medium in the embodiments of the present application may use any combination of one or more computer-readable media.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer-readable storage medium may be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable computer disks, hard disks, Random Access Memory (RAM), read-only memory (Read Only Memory, ROM), Erasable Programmable Read Only Memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above .
  • a computer readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device.
  • a computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .
  • Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wires, optical cables, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the above.
  • any appropriate medium including but not limited to: wireless, wires, optical cables, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the above.
  • Computer program codes for performing the operations of the present application may be written in one or more programming languages or combinations thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional A procedural programming language, such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through the Internet using an Internet service provider). connect).
  • LAN local area network
  • WAN wide area network
  • connect such as AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.
  • user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.
  • the various embodiments of the present application can be implemented in hardware or special purpose circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.
  • ISA Instruction Set Architecture
  • Any logic flow block diagrams in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to Read-Only Memory (ROM), Random Access Memory (RAM), Optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
  • Computer readable media may include non-transitory storage media.
  • Data processors can be of any type suitable for the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architectures.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FGPA programmable logic devices
  • processors based on multi-core processor architectures such as but not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architectures.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FGPA programmable logic devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本申请提供一种小区指示、小区切换方法、装置、服务节点、终端及介质。该方法生成下行控制信息，所述下行控制信息用于指示目标小区的信息(110)；将所述下行控制信息发送至终端(120)。

Description

小区指示、小区切换方法、装置、服务节点、终端及介质
相关申请的交叉引用
本申请基于申请号为202110751051.8，申请日为2021年07月02日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及无线通信技术领域，例如涉及一种小区指示、小区切换方法、装置、服务节点、终端及介质。
背景技术
新空口(New Radio，NR)定义了终端的3种无线资源控制(Radio Resource Control，RRC)状态：空闲状态(RRC_IDLE)、休眠状态(RRC_INACTIVE)和连接状态(RRC_CONNECTED)。在连接状态下终端的移动性管理包括小区之间的切换管理和小区内部波束之间的切换管理，小区之间的切换通过RRC信令控制，并依赖于无线资源管理(Radio Resource Management，RRM)和测量。
在小区切换过程中，终端与服务小区的通信质量较差，并且RRC信令开销较大、传输时间较长，会导致终端不能成功接收网络侧发送的切换指示，进而导致切换过程业务中断时间较长，甚至切换失败。
发明内容
本申请提供一种小区指示、小区切换方法、装置、服务节点、终端及介质，以提高指示的可靠性和小区切换的成功率。
本申请实施例提供一种小区指示方法，包括：下行控制信息(Downlink Control Information，DCI)，所述下行控制信息用于指示目标小区的信息；将所述下行控制信息发送至终端。
本申请实施例还提供了一种小区切换方法，包括：接收下行控制信息，所述下行控制信息用于指示目标小区的信息；根据所述下行控制信息将服务小区切换为所述目标小区。
本申请实施例还提供了一种小区指示装置，包括：生成模块，设置为生成下行控制信息，所述下行控制信息用于指示目标小区的信息；发送模块，设置为将所述下行控制信息发送至终端。
本申请实施例还提供了一种小区切换装置，包括：接收模块，设置为接收下行控制信息，所述下行控制信息用于指示目标小区的信息；切换模块，设置为根据所述下行控制信息将服务小区切换为所述目标小区。
本申请实施例还提供了一种服务节点，包括：存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述的小区指示方法。
本申请实施例还提供了一种终端，包括：存储器、处理器以及存储在存储器上并可在处 理器上运行的计算机程序，所述处理器执行所述程序时实现上述的小区切换方法。
本申请实施例还提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该程序被处理器执行时实现上述的小区指示方法或小区切换方法。
附图说明
图1为一实施例提供的一种小区指示方法的流程图；
图2为一实施例提供的一种下行控制信息的示意图；
图3为一实施例提供的另一种下行控制信息的示意图；
图4为一实施例提供的又一种下行控制信息的示意图；
图5为一实施例提供的一种小区切换方法的流程图；
图6为一实施例提供的一种小区指示装置的结构示意图；
图7为一实施例提供的一种小区切换装置的结构示意图；
图8为一实施例提供的一种服务节点的硬件结构示意图；
图9为一实施例提供的一种终端的硬件结构示意图。
具体实施方式
下面结合附图和实施例对本申请进行说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。本实施例中提及的“第一”、“第二”等概念仅用于对不同的装置、模块、单元或其他对象进行区分，并非用于限定这些装置、模块、单元或其他对象所执行的功能的顺序或者相互依存关系。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。
在本申请实施例中，提供一种小区指示方法，针对RRC信令开销大、传输慢、传输成功率低的问题，采用下行控制信息向终端指示需要切换的目标小区，提高指示的可靠性和小区切换的成功率。
图1为一实施例提供的一种小区指示方法的流程图。该方法可应用于服务节点，例如基站、网络侧节点、调度节点等。如图1所示，本实施例提供的方法包括步骤110和步骤120。
在步骤110中，生成下行控制信息，所述下行控制信息用于指示目标小区的信息。
在步骤120中，将所述下行控制信息发送至终端。
本实施例中，服务节点可以根据与终端之间的连接情况、信道状态、位置关系等确定终端与当前连接的服务小区之间的通信质量，进而决定是否需要为终端切换服务小区，以及确定能够在切换后为终端继续提供服务的目标小区。在此基础上，服务节点通过下行控制信息将目标小区的信息指示给终端，从而指示终端从当前的服务小区切换为目标小区。
需要说明的是，目标小区的信息通过下行控制信息指示，下行控制信息的信令开销较小、传输较快、传输成功率高，因此能够保证切换服务小区的指示的可靠性，在此基础上，终端能够依据下行控制信息快速将服务小区切换为目标小区，从而减少业务中断的时间，并保证切换的成功率。
在一实施例中，下行控制信息根据终端上报的测量信息生成。
本实施例中，终端可以测量与服务节点之间的信道状态并将测量信息上报给服务节点， 服务节点据此确定终端与当前连接的服务小区之间的通信质量，进而决定是否需要切换服务小区，以及确定能够在切换后为终端继续提供服务的目标小区。
在一实施例中，下行控制信息包括以下至少之一：
RRC消息；介质访问控制-控制元素(Media Access ControlControl Element，MAC CE)信息；物理下行控制信道(Physical Downlink Control Channel，PDCCH)DCI。
本实施例中，下行控制信息可以是RRC消息；也可以是MAC信令中的信息，具体可以是MAC CE信息；也可以是PDCCH DCI。
在一实施例中，目标小区的信息包括以下至少之一：目标小区的物理小区标识(Physical Cell ID，PCI)；目标小区的小区无线网络临时标识(Cell-Radio Network Temporary Identifier，C-RNTI)；目标小区集合；目标小区的索引。
本实施例中，每个小区的PCI、C-RNTI以及索引都是唯一的，服务节点通过下行控制信息向终端指示目标小区的PCI、C-RNTI以及索引中的一种或多种，供终端明确要切换的服务小区，使切换指示的方式更灵活高效，此外，目标小区也可以包括多个小区，目标小区的信息包括目标小区集合，终端可以切换至目标小区集合中的一个目标小区。
图2为一实施例提供的一种下行控制信息的示意图。Oct表示一个字节(Byte)，一个字节中包括8个比特(Bit)。如图2所示，Oct1中有5个比特“R”表示预留字段，其余比特可用于指示目标小区的索引，目标小区的索引字段的长度为3比特。其中，目标小区可以为条件切换(Conditional Handover，CHO)小区，即终端在满足设定条件的情况下才可切换至目标小区。
图3为一实施例提供的另一种下行控制信息的示意图。如图3所示，Oct1中有6个比特为预留字段，其余比特以及Oct2中的比特都可用于指示目标小区的PCI，PCI字段的长度为10比特。PCI字段具体可以是第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的技术规范TS 38.331和/或3GPP TS 37.355中规定的物理小区标识(PhysCellId)。
图4为一实施例提供的又一种下行控制信息的示意图。如图4所示，Oct1中有6个比特为预留字段，其余比特以及Oct2中的比特都可用于指示目标小区的PCI，PCI字段的长度为10比特；此外，Oct3和Oct4中的比特都可用于指示目标小区的C-RNTI，即C-RNTI字段的长度为16比特。C-RNTI字段具体可以包含MAC实体的C-RNTI。
在一实施例中，PCI包括PCI字段值或者PCI索引。
本实施例中，PCI的内容可以是具体的PCI字段值，也可以是PCI索引。如果PCI的内容是具体的PCI字段值，则下行控制信息中所指示的PCI就是目标小区的物理小区标识，可直接指示目标小区；如果PCI的内容是PCI索引，则PCI的各字段值与PCI索引之间具有第一映射关系，终端可以根据下行控制信息中指示的PCI索引查询第一映射关系，以获得该PCI索引对应的PCI字段值，从而确定目标小区的物理小区标识，这种情况下，PCI索引可间接指示目标小区。
在一实施例中，C-RNTI包括C-RNTI字段值或者C-RNTI索引。
本实施例中，C-RNTI的内容可以是具体的C-RNTI字段值，也可以是C-RNTI索引。如果C-RNTI的内容是具体的C-RNTI字段值，则下行控制信息中所指示的C-RNTI就是目标小区的临时标识符，可直接指示目标小区；如果C-RNTI的内容是C-RNTI索引，则C-RNTI的各字段值与C-RNTI索引之间具有第二映射关系，终端可以根据下行控制信息中指示的C-RNTI索 引查询第二映射关系，以获得该C-RNTI索引对应的C-RNTI字段值，从而确定目标小区的临时标识符，这种情况下，C-RNTI索引可间接指示目标小区。
在一实施例中，目标小区集合通过RRC消息或MAC CE消息发送；RRC消息为已有信元或新增信元。
本实施例中，目标小区的信息包括目标小区集合，且下行控制信息具体可以是RRC消息或MAC CE消息，其中，对于RRC消息，可以使用已有信元或新增信元来指示目标小区集合。已有信元是指已有的用于传输其他信息的信元，新增信元是指为指示目标小区集合设置的专用的信元。
在一实施例中，PDCCH DCI通过高层配置为1比特或2比特或3比特，PDCCH DCI用于指示目标小区的索引。
本实施例中，下行控制信息具体为PDCCH DCI，其用于指示目标小区的索引，且PDCCH DCI的长度为1比特、2比特或3比特，PDCCH DCI的长度可由高层信令配置，或者是预定义的。
在一实施例中，服务节点还可以向终端指示服务小区的切换方式，切换方式包括上下行切换和下行切换，其中，上下行切换是指，在指定时间内，为终端提供上行服务的服务小区(上行服务小区)以及为终端提供下行服务的服务小区(下行服务小区)都切换为目标小区；下行切换是指，在指定时间内，为终端提供上行服务的服务小区保持不变，而为终端提供下行服务的服务小区切换为目标小区，从而优先保证上行服务的质量。通过指示不同的切换方式，分别考虑上行和下行的通信质量进行服务小区的切换，使服务节点与终端之间的服务关系和切换方式更灵活，可满足不同的实际需求。
在本申请实施例中，还提供一种小区切换方法，该方法可应用于终端，例如手机、平板、电脑等用户设备(User Equipment，UE)。需要说明的是，未在本实施例中详尽描述的技术细节可参见上述任意实施例。
图5为一实施例提供的一种小区切换方法的流程图，如图5所示，本实施例提供的方法包括步骤210和步骤220。
在步骤210中，接收下行控制信息，所述下行控制信息用于指示目标小区的信息。
在步骤220中，根据所述下行控制信息将服务小区切换为所述目标小区。
本实施例中，终端根据下行控制信息的指示进行服务小区的切换，由于下行控制信息的信令开销较小、传输较快，传输成功率高，因此能够保证指示的可靠性，在此基础上终端能够依据下行控制信息快速切换为目标小区，可以减少业务中断的时间，保证切换的成功率。
在一实施例中，该方法还包括：
步骤200：上报测量信息，其中，下行控制信息根据测量信息生成。
本实施例中，终端可以测量与服务节点之间的信道状态并将测量信息上报给服务节点，由服务节点决定是否需要切换服务小区，以及指示能够在切换后为终端继续提供服务的目标小区的信息。
在一实施例中，下行控制信息包括以下至少之一：
RRC消息；MAC CE信息；PDCCH DCI。
在一实施例中，目标小区的信息包括以下至少之一：
目标小区的PCI；目标小区的C-RNTI；目标小区集合；目标小区的索引。
在一实施例中，PCI包括PCI字段值或者PCI索引。
在一实施例中，C-RNTI包括C-RNTI字段值或者C-RNTI索引。
在一实施例中，目标小区集合通过RRC消息或MAC CE消息发送；RRC消息为已有信元或新增信元。
在一实施例中，PDCCH DCI通过高层配置为1比特或2比特或3比特，PDCCH DCI用于指示目标小区的索引。
在一实施例中，步骤220包括：
根据所述下行控制信息，在指定时间内将上下行服务小区切换为所述目标小区；或者，
根据所述下行控制信息，在指定时间内将下行服务小区切换为所述目标小区。
本实施例中，终端可以根据服务节点的指示，或者根据预先配置，或者自主决定切换方式，并在指定时间内完成服务小区的切换。例如，在指定时间内，将上下行服务小区都切换为目标小区，或者，仅将下行服务小区切换为目标小区。其中，指定时间可以由服务节点指示。通过指示不同的切换方式，使服务节点与终端之间的服务关系和切换方式更灵活，可满足不同的实际需求。
本申请实施例还提供一种小区指示装置。图6为一实施例提供的一种小区指示装置的结构示意图。如图6所示，所述小区指示装置包括：
生成模块310，设置为生成下行控制信息，所述下行控制信息用于指示目标小区的信息；
发送模块320，设置为将所述下行控制信息发送至终端。
本实施例的小区指示装置，采用下行控制信息向终端指示需要切换的目标小区，下行控制信息的信令开销较小、传输较快，传输成功率高，因此能够保证指示的可靠性，使终端能够依据下行控制信息快速切换为目标小区，可以减少业务中断的时间，并保证切换的成功率。
在一实施例中，下行控制信息根据终端上报的测量信息生成。
在一实施例中，所述下行控制信息包括以下至少之一：
RRC消息；MAC CE信息；PDCCH DCI。
在一实施例中，所述目标小区的信息包括以下至少之一：
目标小区的PCI；目标小区的C-RNTI；目标小区集合；目标小区的索引。
在一实施例中，所述PCI包括PCI字段值或者PCI索引。
在一实施例中，所述C-RNTI包括C-RNTI字段值或者C-RNTI索引。
在一实施例中，目标小区集合通过RRC消息或MAC CE消息发送；RRC消息为已有信元或新增信元。
在一实施例中，所述PDCCH DCI通过高层配置为1比特或2比特或3比特，所述PDCCH DCI用于指示目标小区的索引。
本实施例提出的小区指示装置与上述实施例提出的小区指示方法属于同一发明构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行小区指示方法相同的有益效果。
本申请实施例还提供一种小区切换装置。图7为一实施例提供的一种小区切换装置的结构示意图。如图7所示，所述小区切换装置包括：
接收模块410，设置为接收下行控制信息，所述下行控制信息用于指示目标小区的信息；
切换模块420，设置为根据所述下行控制信息将服务小区切换为所述目标小区。
本实施例的小区切换装置，根据下行控制信息的指示进行服务小区的切换，由于下行控制信息的信令开销较小、传输较快，传输成功率高，因此能够保证指示的可靠性，并且能够依据下行控制信息快速切换为目标小区，可以减少业务中断的时间，保证切换的成功率。
在一实施例中，该装置还包括：
上报模块4，设置为上报测量信息，其中，下行控制信息根据测量信息生成。
在一实施例中，所述下行控制信息包括以下至少之一：
RRC消息；MAC CE信息；PDCCH DCI。
在一实施例中，所述目标小区的信息包括以下至少之一：
目标小区的PCI；目标小区的C-RNTI；目标小区集合；目标小区的索引。
在一实施例中，所述PCI包括PCI字段值或者PCI索引。
在一实施例中，所述C-RNTI包括C-RNTI字段值或者C-RNTI索引。
在一实施例中，目标小区集合通过RRC消息或MAC CE消息发送；RRC消息为已有信元或新增信元。
在一实施例中，所述PDCCH DCI通过高层配置为1比特或2比特或3比特，所述PDCCH DCI用于指示目标小区的索引。
在一实施例中，切换模块420设置为：
根据所述下行控制信息，在指定时间内将上下行服务小区切换为所述目标小区；或者，
根据所述下行控制信息，在指定时间内将下行服务小区切换为所述目标小区。
本实施例提出的小区切换装置与上述实施例提出的小区切换方法属于同一发明构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行小区切换方法相同的有益效果。
本申请实施例还提供了一种服务节点，图8为一实施例提供的一种服务节点的硬件结构示意图，如图8所示，本申请实施例提供的服务节点，包括存储器52、处理器51以及存储在存储器上并可在处理器上运行的计算机程序，处理器51执行所述程序时实现上述的小区指示方法。
服务节点还可以包括存储器52；该服务节点中的处理器51可以是一个或多个，图8中以一个处理器51为例；存储器52用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器51执行，使得所述一个或多个处理器51实现如本申请实施例中所述的小区指示方法。
服务节点还包括：通信装置53、输入装置54和输出装置55。
服务节点中的处理器51、存储器52、通信装置53、输入装置54和输出装置55可以通过总线或其他方式连接，图8中以通过总线连接为例。
输入装置54可用于接收输入的数字或字符信息，以及产生与服务节点的用户设置以及功能控制有关的按键信号输入。输出装置55可包括显示屏等显示设备。
通信装置53可以包括接收器和发送器。通信装置53设置为根据处理器51的控制进行信息收发通信。
存储器52作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述小区指示方法对应的程序指令/模块(例如，小区指示装置中的生成模块310和发送模块320)。存储器52可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据服务节点的使用所创建的数据等。此外，存储器52可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器52可进一步包括相对于处理器51远程设置的存储器，这些远程存储器可以通过网络连接至服务节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供了一种终端，图9为一实施例提供的一种终端的硬件结构示意图，如图9所示，本申请提供的终端，包括存储器62、处理器61以及存储在存储器上并可在处理器上运行的计算机程序，处理器61执行所述程序时实现上述的小区切换方法。
终端还可以包括存储器62；该终端中的处理器61可以是一个或多个，图9中以一个处理器61为例；存储器62用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器61执行，使得所述一个或多个处理器61实现如本申请实施例中所述的小区切换方法。
终端还包括：通信装置63、输入装置64和输出装置65。
终端中的处理器61、存储器62、通信装置63、输入装置64和输出装置65可以通过总线或其他方式连接，图9中以通过总线连接为例。
输入装置64可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的按键信号输入。输出装置65可包括显示屏等显示设备。
通信装置63可以包括接收器和发送器。通信装置63设置为根据处理器61的控制进行信息收发通信。
存储器62作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述小区切换方法对应的程序指令/模块(例如，小区切换装置中的接收模块410和切换模块420)。存储器62可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器62可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器62可进一步包括相对于处理器61远程设置的存储器，这些远程存储器可以通过网络连接至终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例中任一所述的小区指示方法或小区切换方法。
该小区指示方法，包括：生成下行控制信息，所述下行控制信息用于指示目标小区的信息；将所述下行控制信息发送至终端。
该小区切换方法，包括：接收下行控制信息，所述下行控制信息用于指示目标小区的信息；根据所述下行控制信息将服务小区切换为所述目标小区。
本申请实施例的计算机存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是，但不限于：电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(Random Access Memory，RAM)、只读存储器(Read Only Memory，ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存、光纤、便携式CD-ROM、光存储器件、磁存储器件、或者上述的任意合适的组合。计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于：电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：无线、电线、光缆、无线电频率(Radio Frequency，RF)等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言，诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言，诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络，包括局域网(LAN)或广域网(WAN)，连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
以上所述，仅为本申请的若干实施例而已，并非用于限定本申请的保护范围。
本领域内的技术人员应明白，术语用户终端涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储 器(Random Access Memory，RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disk，CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FGPA)以及基于多核处理器架构的处理器。
通过若干非限制性的示例，上文已提供了对本申请的若干实施例的详细描述。但结合附图和权利要求来考虑，对以上实施例的多种修改和调整对本领域技术人员来说是显而易见的，但不偏离本申请的范围。因此，本申请的恰当范围将根据权利要求确定。

Claims (22)

  1. 一种小区指示方法，包括：
    生成下行控制信息，所述下行控制信息用于指示目标小区的信息；
    将所述下行控制信息发送至终端。
  2. 根据权利要求1所述的方法，其中，所述下行控制信息根据终端上报的测量信息生成。
  3. 根据权利要求1所述的方法，其中所述下行控制信息包括以下至少之一：
    无线资源控制RRC消息；介质访问控制-控制元素MAC CE信息；物理下行控制信道PDCCH下行控制信息DCI。
  4. 根据权利要求1所述的方法，其中所述目标小区的信息包括以下至少之一：
    目标小区的物理小区标识PCI；目标小区的小区无线网络临时标识C-RNTI；目标小区集合；目标小区的索引。
  5. 根据权利要求4所述的方法，其中所述PCI包括PCI字段值或者PCI索引。
  6. 根据权利要求4所述的方法，其中所述C-RNTI包括C-RNTI字段值或者C-RNTI索引。
  7. 根据权利要求4所述的方法，其中，所述目标小区集合通过RRC消息或MAC CE消息发送；
    所述RRC消息为已有信元或新增信元。
  8. 根据权利要求3所述的方法，其中，所述物理下行控制信道PDCCH下行控制信息DCI通过高层配置为1比特或2比特或3比特，所述物理下行控制信道PDCCH下行控制信息DCI用于指示目标小区的索引。
  9. 一种小区切换方法，包括：
    接收下行控制信息，所述下行控制信息用于指示目标小区的信息；
    根据所述下行控制信息将服务小区切换为所述目标小区。
  10. 根据权利要求9所述的方法，还包括：
    上报测量信息，其中，所述下行控制信息根据所述测量信息生成。
  11. 根据权利要求9所述的方法，其中所述下行控制信息包括以下至少之一：
    无线资源控制RRC消息；介质访问控制-控制元素MAC CE信息；物理下行控制信道PDCCH下行控制信息DCI。
  12. 根据权利要求9所述的方法，其中所述目标小区的信息包括以下至少之一：
    目标小区的物理小区标识PCI；目标小区的小区无线网络临时标识C-RNTI；目标小区集合；目标小区的索引。
  13. 根据权利要求12所述的方法，其中所述PCI包括PCI字段值或者PCI索引。
  14. 根据权利要求12所述的方法，其中所述C-RNTI包括C-RNTI字段值或者C-RNTI索引。
  15. 根据权利要求12所述的方法，其中，所述目标小区集合通过RRC消息或MAC CE消息发送；
    所述RRC消息为已有信元或新增信元。
  16. 根据权利要求11所述的方法，其中，所述物理下行控制信道PDCCH下行控制信息DCI通过高层配置为1比特或2比特或3比特，用于指示目标小区的索引。
  17. 根据权利要求9所述的方法，其中，根据所述下行控制信息将服务小区切换为所述目标小区，包括：
    根据所述下行控制信息，在指定时间内将上下行服务小区切换为所述目标小区；或者，
    根据所述下行控制信息，在指定时间内将下行服务小区切换为所述目标小区。
  18. 一种小区指示装置，包括：
    生成模块，设置为生成下行控制信息，所述下行控制信息用于指示目标小区的信息；
    发送模块，设置为将所述下行控制信息发送至终端。
  19. 一种小区切换装置，包括：
    接收模块，设置为接收下行控制信息，所述下行控制信息用于指示目标小区的信息；
    切换模块，设置为根据所述下行控制信息将服务小区切换为所述目标小区。
  20. 一种服务节点，包括存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，其中，所述处理器执行所述程序时实现如权利要求1-8中任一项所述的小区指示方法。
  21. 一种终端，包括存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，其中，所述处理器执行所述程序时实现如权利要求9-17中任一项所述的小区切换方法。
  22. 一种计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现如权利要求1-8中任一项所述的小区指示方法或如权利要求9-17中任一项所述的小区切换方法。
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