WO2018076218A1 - 基于变带宽的通信方法和装置 - Google Patents

基于变带宽的通信方法和装置 Download PDF

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Publication number
WO2018076218A1
WO2018076218A1 PCT/CN2016/103454 CN2016103454W WO2018076218A1 WO 2018076218 A1 WO2018076218 A1 WO 2018076218A1 CN 2016103454 W CN2016103454 W CN 2016103454W WO 2018076218 A1 WO2018076218 A1 WO 2018076218A1
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WIPO (PCT)
Prior art keywords
bandwidth
target
network node
indication information
parameter
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PCT/CN2016/103454
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English (en)
French (fr)
Inventor
王宏
权威
张戬
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华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP16920199.3A priority Critical patent/EP3522631B1/en
Priority to CN202110333343.XA priority patent/CN113194506B/zh
Priority to PCT/CN2016/103454 priority patent/WO2018076218A1/zh
Priority to ES16920199T priority patent/ES2928109T3/es
Priority to CN201680088986.XA priority patent/CN109661845B/zh
Publication of WO2018076218A1 publication Critical patent/WO2018076218A1/zh
Priority to US16/394,453 priority patent/US11109275B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and in particular, to a variable bandwidth based communication method and apparatus.
  • the cell-specific reference signal (Cell Specific Reference Signals, CRS for short) is valid for user equipment (English: User Equipment, UE for short) in the cell, and its functions include: (1) can be used by the UE for downlink physics. Channel estimation of the channel, (2) can be used by the UE to obtain channel state information (Crystal State Information, CSI for short), and (3) CRS-based UE measurement can be used as a basis for determining cell selection and handover. Due to the role of the above CRS, in the current Long Term Evolution (LTE), the CRS is transmitted on each RB (Resource Block) in the entire downlink bandwidth in each downlink subframe.
  • RB Resource Block
  • the system bandwidth supports 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz, and corresponds to 6 RB, 15 RB, 25 RB, 50 RB, 75 RB, and 100 RB, respectively.
  • the base station will always send a CRS to the UE based on the bandwidth of the system, and the UE will always receive the CRS based on the bandwidth of the system when needed.
  • transmitting CRS over a relatively large system bandwidth increases the power consumption of the device.
  • Embodiments of the present invention provide a communication method and apparatus based on variable bandwidth, which are used to reduce power consumption of a device.
  • an embodiment of the present invention provides a variable bandwidth-based communication method, including: a network node sending indication information to a UE, where the indication information is used to indicate a target bandwidth parameter used by a serving cell of the UE; The node communicates with the UE according to the target bandwidth parameter; the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the network node before the network node sends the indication information to the UE, the network node sends a bandwidth parameter list to the UE, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index, where The bandwidth parameter includes at least one of the following: a bandwidth, a center frequency, and an activation time of the bandwidth; and the indication information includes a parameter index corresponding to the target bandwidth parameter.
  • the network node further sends first capability indication information to the UE, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • the embodiment of the present invention provides a variable bandwidth-based communication method, including: receiving, by a UE, indication information sent by a network node, where the indication information is used to indicate a target bandwidth parameter used by a serving cell of the UE; The UE acquires the target bandwidth parameter according to the indication information; the UE communicates with the network node according to the target bandwidth parameter; the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point , the time when the target bandwidth is enabled.
  • the indication information further includes the target bandwidth parameter.
  • the UE before receiving the indication information sent by the network node, the UE further receives a bandwidth parameter list sent by the network node, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index; the bandwidth parameter includes the following: At least one of: a bandwidth, a center frequency, and an enabling time of the bandwidth; the indication information includes a parameter index corresponding to the target bandwidth parameter; and the UE acquires the target bandwidth parameter according to the indication information, including: The UE acquires the target bandwidth parameter according to the parameter index corresponding to the target bandwidth parameter and the bandwidth parameter list.
  • the UE before the UE communicates with the network node based on the target bandwidth parameter, when the target central frequency point is different from a central frequency point currently used by the UE, the UE is in the The center frequency point to be used in the preset symbol before the start time of the target bandwidth or the preset symbol after the start time of the target bandwidth is switched to the target center frequency point.
  • the UE further receives first capability indication information sent by the network node, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the second capability indication information that is sent by the UE to the network node, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • an embodiment of the present invention provides a variable bandwidth-based communication method, including: a first network node sends a configuration update message to a second network node, where the configuration update message includes indication information and an identifier of a cell; The information is used to indicate a target system bandwidth parameter of the cell; the first network node communicates with the UE based on the target system bandwidth parameter; the cell is a serving cell of the UE; and the target system bandwidth parameter includes the following At least one: target system bandwidth, target center frequency, and enable time of the target system bandwidth.
  • the embodiment of the present invention provides a variable bandwidth-based communication method, including: receiving, by a second network node, a configuration update message sent by a first network node, where the configuration update message includes indication information and an identifier of a cell;
  • the indication information is used to indicate a target system bandwidth parameter of the cell;
  • the second network node configures a measurement parameter of the UE based on the target system bandwidth parameter;
  • the serving cell of the UE is a cell managed by the second network node;
  • the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency point, and an activation time of the target system bandwidth.
  • an embodiment of the present invention provides a network node, including: a sending unit, configured to send indication information to a UE, where the indication information is used to indicate a target bandwidth parameter used by a serving cell of the UE;
  • the network node communicates with the UE according to the target bandwidth parameter;
  • the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the sending unit is further configured to send, to the UE, first capability indication information, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the method further includes: a receiving unit, configured to receive second capability indication information sent by the UE, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • an embodiment of the present invention provides a UE, including: a receiving unit, configured to receive indication information that is sent by a network node, where the indication information is used to indicate a target bandwidth parameter used by a serving cell of the UE; And configured to acquire the target bandwidth parameter according to the indication information; And communicating with the network node based on the target bandwidth parameter; the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the receiving unit is further configured to receive first capability indication information that is sent by the network node, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the method further includes: a sending unit, configured to send the second capability indication information to the network node, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • a sending unit configured to send the second capability indication information to the network node, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • an embodiment of the present invention provides a network node, including: a sending unit, configured to send a configuration update message to a second network node, where the configuration update message includes indication information and an identifier of a cell; a target system bandwidth parameter indicating the cell; a processing unit, configured to communicate with the UE based on the target system bandwidth parameter; the cell is a serving cell of the UE; and the target system bandwidth parameter includes at least one of the following: Target system bandwidth, target center frequency, and target system bandwidth enable time.
  • an embodiment of the present invention provides a network node, including: a receiving unit, configured to receive a configuration update message sent by a first network node, where the configuration update message includes indication information and an identifier of a cell; a target system bandwidth parameter indicating the cell; a processing unit, configured to configure a measurement parameter of the UE based on the target system bandwidth parameter; a serving cell of the UE is a cell managed by the second network node; the target system
  • the bandwidth parameters include at least one of the following: Target system bandwidth, target center frequency, and target system bandwidth enable time.
  • variable bandwidth-based communication method and apparatus enable the network node and the UE to communicate on the changed bandwidth by using the foregoing solution, thereby avoiding a relatively large bandwidth when the network load is relatively low. Communication on the device reduces the power consumption of the device.
  • FIG. 1 is a flowchart of a variable bandwidth based communication method according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of a variable bandwidth based communication method according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of an activation time according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a UE according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic structural diagram of a network node according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic structural diagram of a network node according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic structural diagram of a UE according to Embodiment 2 of the present invention.
  • FIG. 13 is a schematic structural diagram of a network node according to Embodiment 5 of the present invention.
  • FIG. 1 is a flowchart of a variable bandwidth-based communication method according to Embodiment 1 of the present invention. As shown in FIG. 1 , the method in this embodiment may include:
  • the network node sends the indication information to the UE.
  • the indication information is used to indicate a target bandwidth parameter used by a serving cell of the UE.
  • the serving cell of the UE may be a cell corresponding to the network node, for example, a cell managed by the network node.
  • the network node may be an evolved base station (English: evolved Node B, eNB for short) or a centralized unit (English: Central Unit, CU for short).
  • the foregoing cell may be a cell formed by an eNB (English: Cell), or a distributed unit (English: Distributed Unit, referred to as DU) under centralized unit control, such as a super cell (English: Hyper-Cell) .
  • the above network node may also be the distributed unit DU.
  • the network node may send the indication information to the UE by using a paging message (English: Paging Signaling) or proprietary signaling (English: Dedicated Signaling).
  • the UE acquires the target bandwidth parameter according to the indication information.
  • the UE after receiving the indication information sent by the network node, acquires the target bandwidth parameter according to the indication information.
  • the network node communicates with the UE according to the target bandwidth parameter.
  • the network node may communicate with the UE based on the target bandwidth parameter, and the UE may also communicate with the network node based on the target bandwidth parameter; that is, the network node and the UE start at the target bandwidth and the target center frequency from the activation time of the target bandwidth. Point to communicate.
  • the foregoing bandwidth may be a system bandwidth, that is, changing a system bandwidth of a certain cell.
  • the system bandwidth is 25 RB, and after the T1 time, the system bandwidth becomes 10 RB.
  • the target bandwidth parameter is a target system bandwidth parameter, and in order not to affect the UE camping in the cell, the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency, The time when the target system bandwidth is enabled.
  • the S103 may be: the network node sends a reference signal (for example, CRS) for measurement to the UE according to the target system bandwidth parameter, and accordingly, the UE also receives the reference signal for measurement sent by the network device based on the target system bandwidth parameter (for example: CRS).
  • CRS target system bandwidth parameter
  • the network node can send some candidate system bandwidth parameters to the UE under its coverage through broadcast signaling before the system bandwidth changes, and then send the paging message to the UE under its coverage.
  • the specific selected system bandwidth parameters may be sent the indication information to the UE in the connected state under its service through dedicated signaling.
  • the foregoing bandwidth may be a scheduling bandwidth, that is, changing the bandwidth of the scheduling UE. For example, scheduling the UE on the 25 RB before the T2 time, and scheduling the UE on the 10 RB after the T2 time.
  • the target bandwidth parameter is a target scheduling bandwidth parameter, and the target scheduling bandwidth parameter includes at least one of the following: a target scheduling bandwidth, a target center frequency point, and an activation time of the target scheduling bandwidth.
  • the scheduling bandwidth may be a part of the bandwidth of the system bandwidth.
  • the S103 may be: the network node sends the PDCCH and/or the PDSCH to the UE according to the target scheduling bandwidth parameter, and accordingly, the UE also receives the PDCCH and/or the PDSCH sent by the network device according to the target scheduling bandwidth parameter.
  • the network node may send the indication information to the UE by using a dedicated signaling or paging message before the scheduling bandwidth is changed.
  • the network node sends the indication information to the UE, and the UE receives the indication information sent by the network node, and then the network node communicates with the UE according to the target bandwidth parameter indicated by the indication information, to implement
  • the network node and the UE can communicate on the changed bandwidth, avoiding communication on a relatively large bandwidth when the network load is relatively low, and reducing power consumption of the device.
  • FIG. 2 is a flowchart of a variable bandwidth-based communication method according to Embodiment 2 of the present invention. As shown in FIG. 2, the method in this embodiment may include:
  • the network node sends the indication information to the UE.
  • the indication information includes a target bandwidth parameter.
  • the UE acquires the target bandwidth parameter from the indication information.
  • the network node communicates with the UE according to the target bandwidth parameter included in the indication information.
  • the network node sends the indication information to the UE, where the indication information includes a target bandwidth after the bandwidth change of the serving cell of the UE determined by the network node; the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency. Point, the time when the target bandwidth is enabled. Then, after receiving the indication information, the UE acquires the included target bandwidth parameter from the indication information; the network node communicates with the UE according to the target bandwidth parameter included in the sent indication information; and the UE according to the received indication information The target bandwidth parameters included communicate with the network node.
  • the above bandwidth may be system bandwidth.
  • the foregoing bandwidth may be a scheduling bandwidth.
  • the foregoing indication information is included in a paging message (for example, a Paging message), and the network node in this embodiment sends the indication information (including a target bandwidth parameter) to the UE by using a paging message, thereby avoiding passing the system message.
  • the target bandwidth parameter sent to the UE can reduce the overhead of system messages and reduce the power consumption of the device.
  • the network node sends the indication information including the target bandwidth parameter to the UE, and then the network node and the UE perform the target bandwidth parameter included in the indication information.
  • Communication The network node is notified of the target bandwidth to the UE, and then the UE can communicate on the target bandwidth, which avoids communication on a relatively large bandwidth when the network load is relatively low, thereby reducing power consumption of the device.
  • FIG. 3 is a flowchart of a variable bandwidth based communication method according to Embodiment 3 of the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • the network node sends a bandwidth parameter list to the UE.
  • the bandwidth parameter list includes at least one set of bandwidth parameters and corresponding parameter indexes, and the bandwidth parameters include at least one of the following: a bandwidth, a center frequency point, and an activation time of the bandwidth.
  • the bandwidth parameter list may include a system bandwidth parameter list or a scheduling bandwidth parameter list, where the system bandwidth parameter list may be as shown in Table 1.
  • the enabling time may be represented by using a system frame number (SFN), may be represented by a sub-frame, or may be represented by a combination of the two.
  • SFN system frame number
  • the enabling time may be a reference point of a system frame of “0”, as shown in FIG. 4, the enabling time is: a system frame number indicated by the distance indication information by using a system frame of “0” as a reference point, Or, the subframe number, or the time corresponding to the system frame number and the subframe number.
  • the enabling time may be a reference point when the UE receives the indication information, as shown in FIG. 5, the enabling time is: a system frame indicated by the distance indication information, where the time when the indication information is received is used as a reference point The number, or the subframe number, or the time corresponding to the system frame number and the subframe number.
  • the parameter index in the parameter list may be displayed or implicitly indicated.
  • the display indications are as shown in Table 1, that is, the index corresponding to each group of parameters is clearly indicated in the parameter list.
  • the implicit indication means that the "parameter index" column is not included in the table 1, but the correspondence of the indexes is implicit in each group parameter from top to bottom. It should be noted that the parameter index included in the indication information is displayed.
  • bandwidth parameter when the bandwidth parameter does not include the center frequency point, it indicates that the center frequency point does not change.
  • bandwidth parameter does not contain bandwidth, it means that the bandwidth is constant, but the center frequency changes.
  • the network node may send a bandwidth parameter list to the UE in advance, and the UE receives the bandwidth parameter list sent by the network node.
  • the network node sends indication information to the UE.
  • the indication information includes a parameter index corresponding to the target bandwidth parameter.
  • the indication information is sent to the UE, and the indication information includes a parameter index corresponding to the target bandwidth parameter used by the serving cell of the UE.
  • the UE acquires the target bandwidth parameter according to a parameter index corresponding to the target bandwidth parameter and a bandwidth parameter list.
  • the network node communicates with the UE according to the target bandwidth parameter.
  • the UE after receiving the indication information sent by the network node, the UE searches for the bandwidth parameter list according to the parameter index corresponding to the target bandwidth parameter in the indication information, and obtains the bandwidth parameter corresponding to the parameter index from the bandwidth parameter list.
  • the bandwidth parameter corresponding to the parameter index is the target bandwidth parameter.
  • the network node then communicates with the UE based on the target bandwidth.
  • the foregoing bandwidth parameter list is included in a system message or a dedicated signaling.
  • the network node sends a bandwidth parameter list to the UE by using a system message or a dedicated signaling; the foregoing indication information is included in the paging message.
  • the dedicated signaling the network node in this embodiment sends the indication information (including the parameter index) to the UE by using a paging message or a dedicated signaling, thereby avoiding sending the system message to the UE every time the bandwidth is changed.
  • the target bandwidth parameter can reduce the overhead of system messages and reduce the power consumption of the device.
  • the network node sends a bandwidth parameter list to the UE, and then sends the indication information to the UE, where the indication information includes a parameter index corresponding to the target bandwidth parameter; A parameter index corresponding to the target bandwidth parameter, and a bandwidth parameter list, the target bandwidth parameter is obtained; and then the network node communicates with the UE based on the target bandwidth parameter.
  • the network node is notified of the target bandwidth to the UE, and then the UE can communicate on the target bandwidth, thereby avoiding communication on a relatively large bandwidth when the network load is relatively low, thereby reducing power consumption of the device.
  • the preset symbol of the UE when the target center frequency point is different from the central frequency point currently used by the UE, the preset symbol of the UE before the start time of the target bandwidth The center frequency point to be used within the preset symbol after the start time of the target bandwidth or the target bandwidth is switched to the target center frequency point.
  • the preset symbol is two symbols.
  • the UE may switch the used center frequency point to the target within a preset symbol before a startup time of the target bandwidth or a preset symbol after a startup time of the target bandwidth. Center frequency.
  • the indication information is further used to indicate that the UE switches to the target center frequency point in a preset symbol before the startup time of the target bandwidth; or the indication information is further used to indicate that the UE is in the The preset symbol within the start time of the target bandwidth is switched to the target center frequency point.
  • the UE switches the used center frequency point to the target center frequency point in the preset symbol before the start time of the target bandwidth or the preset symbol after the start time of the target bandwidth according to the indication information.
  • the network node may further send, by the network node, first capability indication information, where the first capability indication information is used to indicate that the network node has variable bandwidth communication.
  • the capability of the UE receives the first capability indication information sent by the network node. The network node and the UE then perform the above embodiments again.
  • the method further includes: second capability indication information that is sent by the UE to the network node, where the second capability indication information is used to indicate that the UE has variable bandwidth communication.
  • the capability of the network node receives the second capability indication information sent by the UE. The network node and the UE then perform the above embodiments again.
  • variable bandwidth communication refers to the ability of a UE or a network node to dynamically change system bandwidth or schedule bandwidth.
  • FIG. 6 is a flowchart of a variable bandwidth-based communication method according to Embodiment 4 of the present invention. As shown in FIG. 6, the method in this embodiment may include:
  • the first network node sends a configuration update message to the second network node.
  • the configuration update message includes indication information and an identifier of a cell, where the indication information is used to indicate a target system bandwidth parameter of the cell.
  • the first network node after the first network node determines that a certain cell needs to change the system bandwidth, the first network node sends a configuration update message to the second network node, where the cell is a cell corresponding to the first network node, for example, the cell a cell managed for the first network node; the configuration update message includes indication information and an identity of the cell.
  • the neighboring cell of the cell is a cell corresponding to the second network node (for example, a cell managed by the second network node).
  • the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency point, and an activation time of the target system bandwidth.
  • the first network node communicates with the first UE based on the target system bandwidth parameter.
  • the cell is a serving cell of the first UE, and then the first network node Communicating with the first UE based on the target system bandwidth.
  • the first network node Communicating with the first UE based on the target system bandwidth.
  • the second network node configures a measurement parameter of the second UE according to the target system bandwidth parameter.
  • the second network node after receiving the configuration update message, configures the measurement parameter of the second UE based on the target system bandwidth;
  • the serving cell of the second UE is the cell corresponding to the second network node, for example, The cell managed by the second network node.
  • the serving cell of the second UE is the neighboring cell of the cell that changes the system bandwidth.
  • variable system bandwidth-based communication method enables the first network node and the first UE to communicate on the target system bandwidth, thereby avoiding the relatively large system bandwidth when the network load is relatively low.
  • the communication reduces the power consumption of the device; and the first network node can notify the second network node of the target system bandwidth of the cell after changing the system bandwidth of the cell, so that the second network node is configured based on the target system bandwidth parameter.
  • Two UE measurement parameters Two UE measurement parameters.
  • FIG. 7 is a schematic structural diagram of a network node according to Embodiment 1 of the present invention. As shown in FIG. 7, the network node in this embodiment includes: a sending unit 11 and a processing unit 12.
  • the sending unit 11 is configured to send, to the UE, indication information, where the indication information is used to indicate a target bandwidth parameter used by the serving cell of the UE;
  • the processing unit 12 is configured to: the network node communicates with the UE according to the target bandwidth parameter;
  • the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the sending unit 11 is further configured to: before sending the indication information to the UE, send a bandwidth parameter list to the UE, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index.
  • the bandwidth parameter includes at least one of the following: a bandwidth, a center frequency point, and an activation time of the bandwidth;
  • the indication information includes a parameter index corresponding to the target bandwidth parameter.
  • the sending unit 11 is further configured to send the first capability indication information to the UE, where The first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the network node may further include: a receiving unit 13.
  • the receiving unit 13 is configured to receive second capability indication information that is sent by the UE, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • the network node of this embodiment may be used to implement the technical solution executed by the network node in the method embodiment shown in FIG. 1 to FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of a UE according to Embodiment 1 of the present invention. As shown in FIG. 8, the UE in this embodiment includes: a receiving unit 21 and a processing unit 22.
  • the receiving unit 21 is configured to receive indication information that is sent by the network node, where the indication information is used to indicate a target bandwidth parameter used by the serving cell of the UE;
  • the processing unit 22 is configured to acquire the target bandwidth parameter according to the indication information, and communicate with the network node based on the target bandwidth parameter;
  • the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the receiving unit 21 is further configured to: before receiving the indication information sent by the network node, receive a bandwidth parameter list sent by the network node, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index.
  • the bandwidth parameter includes at least one of the following: bandwidth, center frequency, and bandwidth enable time;
  • the indication information includes a parameter index corresponding to the target bandwidth parameter
  • the processing unit 22 is configured to: when the UE acquires the target bandwidth parameter according to the indication information, the UE obtains the target bandwidth parameter according to a parameter index corresponding to the target bandwidth parameter and a bandwidth parameter list.
  • the processing unit 22 is further configured to: when the target central frequency point is different from a central frequency point currently used by the UE, before the communication with the network node based on the target bandwidth parameter, The center frequency point to be used is switched to the target center frequency point within a preset symbol before the start time of the target bandwidth or within a preset symbol after the start time of the target bandwidth.
  • the receiving unit 21 is further configured to receive, by the network node, first capability indication information, where the first capability indication information is used to indicate that the network node has variable bandwidth communication capability. force.
  • the UE in this embodiment further includes: a sending unit 23.
  • the sending unit 23 is configured to send second capability indication information to the network node, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • the UE in this embodiment may be used to perform the technical solution executed by the UE in the method embodiment shown in FIG. 1 to FIG. 3, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of a network node according to Embodiment 2 of the present invention.
  • the network node in this embodiment includes: a sending unit 31 and a processing unit 32.
  • the sending unit 31 is configured to send, to the second network node, a configuration update message, where the configuration update message includes indication information and an identifier of the cell, where the indication information is used to indicate a target system bandwidth parameter of the cell;
  • the processing unit 32 is configured to communicate with the UE according to the target system bandwidth parameter; the cell is a serving cell of the UE;
  • the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency point, and an activation time of the target system bandwidth.
  • the network node of this embodiment may be used to perform the technical solution executed by the first network node in the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of a network node according to Embodiment 3 of the present invention. As shown in FIG. 10, the network node in this embodiment includes: a receiving unit 41 and a processing unit 42.
  • the receiving unit 41 is configured to receive a configuration update message sent by the first network node, where the configuration update message includes indication information and an identifier of the cell, where the indication information is used to indicate a target system bandwidth parameter of the cell;
  • the processing unit 42 is configured to configure, according to the target system bandwidth parameter, a measurement parameter of the UE; the serving cell of the UE is a cell managed by the second network node;
  • the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency point, and an activation time of the target system bandwidth.
  • the network node of this embodiment may be used to perform the technical solution executed by the second network node in the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a network node according to Embodiment 4 of the present invention, as shown in FIG.
  • the network node of this embodiment includes a transceiver 51 and a processor 52.
  • the network node of this embodiment may further include a memory (not shown) for storing program code for executing the variable bandwidth based communication method.
  • the transceiver 51 is configured to send, to the UE, indication information, where the indication information is used to indicate a target bandwidth parameter used by the serving cell of the UE;
  • the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the transceiver 51 is further configured to send, to the UE, a bandwidth parameter list, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index, before sending the indication information to the UE, where
  • the bandwidth parameter includes at least one of the following: bandwidth, center frequency, and bandwidth enable time;
  • the indication information includes a parameter index corresponding to the target bandwidth parameter.
  • the transceiver 51 is further configured to send, to the UE, first capability indication information, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the transceiver 51 is further configured to receive the second capability indication information sent by the UE, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • the network node of this embodiment may be used to implement the technical solution executed by the network node in the method embodiment shown in FIG. 1 to FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of a UE according to Embodiment 2 of the present invention.
  • the UE in this embodiment includes: a transceiver 61 and a processor 62.
  • the UE in this embodiment may further include a memory (not shown).
  • the memory is used to store program code that performs a variable bandwidth based communication method.
  • the transceiver 61 is configured to receive indication information sent by the network node, where the indication information is used to indicate a target bandwidth parameter used by the serving cell of the UE;
  • the processor 62 is configured to acquire the target bandwidth parameter according to the indication information, and communicate with the network node based on the target bandwidth parameter;
  • the target bandwidth parameter includes at least one of the following: a target bandwidth, a target center frequency point, and an activation time of the target bandwidth.
  • the indication information further includes the target bandwidth parameter.
  • the transceiver 61 is further configured to: before receiving the indication information sent by the network node, receive a bandwidth parameter list sent by the network node, where the bandwidth parameter list includes at least one set of bandwidth parameters and a corresponding parameter index;
  • the bandwidth parameter includes at least one of the following: bandwidth, center frequency, and bandwidth enable time;
  • the indication information includes a parameter index corresponding to the target bandwidth parameter
  • the processor 62 is configured to acquire the target bandwidth parameter according to the parameter index corresponding to the target bandwidth parameter and the bandwidth parameter list, when the target bandwidth parameter is obtained according to the indication information.
  • the processor 62 is further configured to: when the target central frequency point is different from a central frequency point currently used by the UE, before the communication with the network node based on the target bandwidth parameter, The center frequency point to be used is switched to the target center frequency point within a preset symbol before the start time of the target bandwidth or within a preset symbol after the start time of the target bandwidth.
  • the transceiver 61 is further configured to receive first capability indication information that is sent by the network node, where the first capability indication information is used to indicate that the network node has the capability of variable bandwidth communication.
  • the transceiver 61 is further configured to send, by the network node, second capability indication information, where the second capability indication information is used to indicate that the UE has the capability of variable bandwidth communication.
  • the bandwidth is system bandwidth or scheduling bandwidth.
  • the UE in this embodiment may be used to perform the technical solution executed by the UE in the method embodiment shown in FIG. 1 to FIG. 3, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of a network node according to Embodiment 5 of the present invention.
  • the network node in this embodiment includes: a transceiver 71 and a processor 72.
  • the network node of this embodiment may further include a memory (not shown) for storing program code for executing the variable bandwidth based communication method.
  • the transceiver 71 is configured to send a configuration update message to the second network node, where the configuration update message includes indication information and an identifier of the cell, where the indication information is used to indicate a target system bandwidth parameter of the cell;
  • the processor 72 is configured to communicate with the UE according to the target system bandwidth parameter; the cell is a serving cell of the UE;
  • the target system bandwidth parameter includes at least one of the following: target system bandwidth, target center frequency Point, the time when the target system bandwidth is enabled.
  • the network node of this embodiment may be used to perform the technical solution executed by the first network node in the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of a network node according to Embodiment 6 of the present invention.
  • the network node in this embodiment includes: a transceiver 81 and a processor 82.
  • the network node of this embodiment may further include a memory (not shown) for storing program code for executing the variable bandwidth based communication method.
  • the transceiver 81 is configured to receive a configuration update message sent by the first network node, where the configuration update message includes indication information and an identifier of the cell, where the indication information is used to indicate a target system bandwidth parameter of the cell.
  • the processor 82 is configured to configure, according to the target system bandwidth parameter, a measurement parameter of the UE; the serving cell of the UE is a cell managed by the second network node;
  • the target system bandwidth parameter includes at least one of the following: a target system bandwidth, a target center frequency point, and an activation time of the target system bandwidth.
  • the network node of this embodiment may be used to perform the technical solution executed by the second network node in the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage medium includes: read-only memory (English: Read-Only Memory, ROM for short), random access memory (English: Random Access Memory, RAM), disk or A variety of media such as optical discs that can store program code.

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Abstract

本发明实施例提供一种基于变带宽的通信方法和装置，此方法包括：网络节点向UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；所述网络节点基于所述目标带宽参数与所述UE进行通信；所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。实现网络节点与UE可以在改变后的带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的带宽上通信，降低了设备的功耗。

Description

基于变带宽的通信方法和装置 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种基于变带宽的通信方法和装置。
背景技术
小区特定的参考信号(英文：Cell Specific Reference Signals，简称：CRS)对小区内的用户设备(英文：User Equipment，简称：UE)都有效，其作用包括：(1)可被UE用于下行物理信道的信道估计，(2)可被UE用来获取信道状态信息(英文：Channel State Information，简称：CSI)，(3)基于CRS的UE测量可用作决定小区选择和切换的基础。由于以上CRS的作用，现有长期演进(英文：Long Term Evolution，简称：LTE)中，CRS在每个下行子帧，整个下行带宽内的每个RB(Resource Block)上都会发送。现有LTE中，系统带宽支持1.4MHz、3MHz、5MHz、10MHz、15MHz、20MHz，分别对应6RB、15RB、25RB、50RB、75RB、100RB。在网络规划过程中，系统带宽确定后，基站会基于这个系统带宽，向UE一直发送CRS，UE基于这个系统带宽在需要时会一直接收CRS。但是，在网络负载相对较低时，在相对较大的系统带宽上传输CRS，会增加设备的功耗。
发明内容
本发明实施例提供一种基于变带宽的通信方法和装置，用于降低设备的功耗。
第一方面，本发明实施例提供一种基于变带宽的通信方法，包括：网络节点向UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；所述网络节点基于所述目标带宽参数与所述UE进行通信；所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，所述网络节点向所述UE发送所述指示信息之前，所述网络节点向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；所述指示信息包括所述目标带宽参数对应的参数索引。
可选地，所述网络节点还向所述UE发送第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，所述网络节点还接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
第二方面，本发明实施例提供一种基于变带宽的通信方法，包括：UE接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；所述UE根据所述指示信息，获取所述目标带宽参数；所述UE基于所述目标带宽参数，与所述网络节点进行通信；所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，UE在接收网络节点发送的指示信息之前，还接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；所述指示信息包括所述目标带宽参数对应的参数索引；所述UE根据所述指示信息，获取所述目标带宽参数，包括：所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
可选地，所述UE还在基于所述目标带宽参数与所述网络节点进行通信之前，当所述目标中心频点与所述UE当前使用的中心频点不相同时，所述UE在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，所述UE还接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，所述UE还向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
第三方面，本发明实施例提供一种基于变带宽的通信方法，包括：第一网络节点向第二网络节点发送配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；所述第一网络节点基于所述目标系统带宽参数与UE进行通信；所述小区为所述UE的服务小区；所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
第四方面，本发明实施例提供一种基于变带宽的通信方法，包括：第二网络节点接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；所述第二网络节点基于所述目标系统带宽参数配置UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
第五方面，本发明实施例提供一种网络节点，包括：发送单元，用于向UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；处理单元，用于所述网络节点基于所述目标带宽参数与所述UE进行通信；所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，所述发送单元，还用于在向所述UE发送所述指示信息之前，向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；所述指示信息包括所述目标带宽参数对应的参数索引。
可选地，所述发送单元，还用于向所述UE发送第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，还包括：接收单元，用于接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
第六方面，本发明实施例提供一种UE，包括：接收单元，用于接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；处理单元，用于根据所述指示信息，获取所述目标带宽参数； 以及基于所述目标带宽参数，与所述网络节点进行通信；所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，所述接收单元，还用于在接收网络节点发送的指示信息之前，接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；所述指示信息包括所述目标带宽参数对应的参数索引；所述处理单元在根据所述指示信息获取所述目标带宽参数时，具体用于：所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
可选地，所述处理单元，还用于在基于所述目标带宽参数与所述网络节点进行通信之前，当所述目标中心频点与所述UE当前使用的中心频点不相同时，在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，所述接收单元，还用于接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，还包括：发送单元，用于向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
第七方面，本发明实施例提供一种网络节点，包括：发送单元，用于向第二网络节点发送配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；处理单元，用于基于所述目标系统带宽参数与UE进行通信；所述小区为所述UE的服务小区；所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
第八方面，本发明实施例提供一种网络节点，包括：接收单元，用于接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；处理单元，用于基于所述目标系统带宽参数配置UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；所述目标系统带宽参数包括以下至少一种： 目标系统带宽、目标中心频点、目标系统带宽的启用时间。
本发明实施例提供的基于变带宽的通信方法和装置，通过上述方案，实现网络节点与UE可以在改变后的带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的带宽上通信，降低了设备的功耗。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一提供的基于变带宽的通信方法的流程图；
图2为本发明实施例二提供的基于变带宽的通信方法的流程图；
图3为本发明实施例三提供的基于变带宽的通信方法的流程图；
图4为本发明实施例提供的一种启用时间的示意图；
图5为本发明实施例提供的一种启用时间的示意图；
图6为本发明实施例四提供的基于变带宽的通信方法的流程图；
图7为本发明实施例一提供的网络节点的结构示意图；
图8为本发明实施例一提供的UE的结构示意图；
图9为本发明实施例二提供的网络节点的结构示意图；
图10为本发明实施例三提供的网络节点的结构示意图；
图11为本发明实施例四提供的网络节点的结构示意图；
图12为本发明实施例二提供的UE的结构示意图；
图13为本发明实施例五提供的网络节点的结构示意图；
图14为本发明实施例六提供的网络节点的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例，都属于本发明保护的范围。
图1为本发明实施例一提供的基于变带宽的通信方法的流程图，如图1所示，本实施例的方法可以包括：
S101、网络节点向UE发送指示信息。
所述指示信息用于指示所述UE的服务小区使用的目标带宽参数。
本实施例中，网络节点在确定需要改变一小区的带宽后，该网络节点向该小区覆盖下的UE(数量为至少一个)发送指示信息，此处以一个UE进行举例说明。该指示信息用于指示该UE的服务小区使用的目标带宽参数，该目标带宽参数为改变带宽后所使用的带宽参数；该目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。可选地，该指示信息还用于指示该UE的服务小区使用的带宽发生改变。可选地，该UE的服务小区可以是该网络节点对应的小区，例如是该网络节点管理的小区。具体地，该网络节点可以是演进型基站(英文：evolved Node B，简称：eNB)，或集中式单元(英文：Central Unit，简称：CU)。上述小区可以是eNB管理下的蜂窝小区(英文：Cell)，或集中式单元控制下的分布式单元(英文：Distributed Unit，简称：DU)形成的小区，如超小区(英文：Hyper-Cell)。上述网络节点还可以是该分布式单元DU。所述网络节点可以通过寻呼消息(英文：Paging Signaling)或专有信令(英文：Dedicated Signaling)向UE发送该指示信息。
S102、所述UE根据所述指示信息，获取所述目标带宽参数。
本实施例中，UE接收网络节点发送的指示信息后，根据该指示信息获取该目标带宽参数。
S103、所述网络节点与所述UE基于所述目标带宽参数进行通信。
本实施例中，网络节点可以基于目标带宽参数与UE进行通信，UE也可以基于目标带宽参数与网络节点进行通信；也就是网络节点与UE从目标带宽的启用时间开始在目标带宽和目标中心频点进行通信。
可选地，上述的带宽可以为系统带宽，即改变某小区的系统带宽，例如在T1时刻前，系统带宽为25RB，T1时刻后，系统带宽变为10RB。此时，相应地，目标带宽参数为目标系统带宽参数，为了不影响驻留在该小区中的UE，目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、 目标系统带宽的启用时间。S103例如可以为：网络节点基于目标系统带宽参数向UE发送用于测量的参考信号(例如：CRS)，相应地，UE也基于该目标系统带宽参数接收网络设备发送的用于测量的参考信号(例如：CRS)。这种情况下，当系统带宽发生改变时，网络节点可以在系统带宽改变前通过广播信令向其覆盖下的UE发送一些候选的系统带宽参数，然后通过寻呼消息向其覆盖下的UE发送具体选定的系统带宽参数。此外，网络节点可以通过专有信令向其服务下的处于连接态的UE发送该指示信息。
另外，由于在现有LTE系统中，基站在使用物理下行控制信道(Physical Downlink Control Channel,PDCCH)调度UE时，是在整个系统带宽上发送PDCCH的，这时UE需要在整个系统带宽上来接收PDCCH，若承载在PDCCH上的下行控制信息(Downlink Control Information)较少，UE需要解码更多的PDCCH资源，会增加UE的功耗。再者，从网络侧来看，发送PDCCH的资源效率下降。可选地，上述的带宽可以为调度带宽，即改变调度UE的带宽，例如，在T2时刻前，在25RB上调度该UE，T2时刻后，在10RB上调度该UE，此时，相应地，目标带宽参数为目标调度带宽参数，目标调度带宽参数包括以下至少一种：目标调度带宽、目标中心频点、目标调度带宽的启用时间。其中，调度带宽可以为系统带宽的一部分带宽。S103例如可以为：网络节点基于目标调度带宽参数向UE发送PDCCH和/或PDSCH，相应地，UE也基于该目标调度带宽参数接收网络设备发送的PDCCH和/或PDSCH。在这种情况下，当某个UE的调度带宽发生变化时，网络节点可以在调度带宽改变前通过专有信令或寻呼消息向该UE发送该指示信息。
本实施例提供的基于变带宽的通信方法，通过网络节点向UE发送指示信息，UE接收网络节点发送的指示信息，然后该网络节点与该UE基于该指示信息指示的目标带宽参数进行通信，实现网络节点与UE可以在改变后的带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的带宽上通信，降低了设备的功耗。
图2为本发明实施例二提供的基于变带宽的通信方法的流程图，如图2所示，本实施例的方法可以包括：
S201、网络节点向UE发送指示信息。所述指示信息包括目标带宽参数。
S202、所述UE从所述指示信息中获取所述目标带宽参数。
S203、所述网络节点与所述UE基于所述指示信息包括的所述目标带宽参数进行通信。
本实施例中，网络节点向UE发送指示信息，该指示信息包括网络节点确定的该UE的服务小区发生带宽改变后的目标带宽；该目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。然后，UE接收指示信息后，从指示信息中获取包括的目标带宽参数；所述网络节点根据发送的所述指示信息包括的所述目标带宽参数与UE进行通信；UE根据接收的所述指示信息包括的所述目标带宽参数与网络节点进行通信。
可选地，上述的带宽可以为系统带宽。可选地，上述的带宽可以为调度带宽。具体描述可以参见图1所示实施例中的相关描述。
可选地，上述的指示信息包括在寻呼消息(例如，Paging消息)中，本实施例的网络节点通过寻呼消息向UE发送该指示信息(包括目标带宽参数)，从而避免了通过系统消息向UE发送的该目标带宽参数，可以减少系统消息的开销，降低设备的功耗。
本实施例提供的基于变带宽的通信方法实施例，通过网络节点向UE发送包括目标带宽参数的指示信息，然后所述网络节点与所述UE基于所述指示信息包括的所述目标带宽参数进行通信；实现网络节点向UE通知目标带宽，然后与UE可以在目标带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的带宽上通信，降低了设备的功耗。
图3为本发明实施例三提供的基于变带宽的通信方法的流程图，如图3所示，本实施例的方法可以包括：
S301、网络节点向UE发送带宽参数列表。
所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间。可选地，带宽参数列表可以包括系统带宽参数列表或者调度带宽参数列表，其中，系统带宽参数列表可以如表一所示。
表一
Figure PCTCN2016103454-appb-000001
Figure PCTCN2016103454-appb-000002
可选的，所述启用时间可为使用系统帧号(System Frame Number,SFN)来表示，可以使用子帧号(Sub-frame)来表示，还可以通过两者的组合来表示。
可选地，所述启用时间可以以“0”号系统帧为基准点，如图4所示，启用时间为：以“0”号系统帧为基准点，距离指示信息指示的系统帧号，或者，子帧号，或者，系统帧号和子帧号对应的时间。
可选地，所述启用时间可以以UE接收到所述指示信息的时刻为基准点，如图5所示，启用时间为：以接收指示信息的时间为基准点，距离指示信息指示的系统帧号，或者，子帧号，或者，系统帧号和子帧号对应的时间。
此外，参数列表中的参数索引可以是显示指示的，也可以是隐式指示的。显示指示如表一所示，即在参数列表中明显的标示出各组参数对应的索引。隐示指示指的是表一中不包含“参数索引”列，但各组参数从上到下隐含着索引的对应关系。需要说明的是，指示信息中包括的参数索引是显示指示的。
需要说明的是，在各实施例中，当带宽参数不包含中心频点时，表示中心频点不变。当带宽参数不包含带宽时，表示带宽不变，只是中心频点改变。
本实施例中，网络节点可以预先向UE发送带宽参数列表，UE接收网络节点发送的带宽参数列表。
S302、所述网络节点向所述UE发送指示信息。所述指示信息包括目标带宽参数对应的参数索引。
本实施例中，当网络节点确定该UE的服务小区使用的带宽需要改变后，向UE发送指示信息，该指示信息包括该UE的服务小区使用的目标带宽参数对应的参数索引。
S303、所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
S304、所述网络节点与所述UE基于所述目标带宽参数进行通信。
本实施例中，UE接收到网络节点发送的指示信息后，根据该指示信息中的目标带宽参数对应的参数索引，查找带宽参数列表，从带宽参数列表中获取该参数索引对应的带宽参数，该参数索引对应的带宽参数为该目标带宽参数。然后网络节点与UE基于该目标带宽进行通信。
可选地，上述的带宽参数列表包括在系统消息或专有信令中，本实施例中网络节点通过系统消息或专有信令向UE发送带宽参数列表；上述的指示信息包括在寻呼消息或专有信令中，本实施例的网络节点通过寻呼消息或专有信令向UE发送该指示信息(包括参数索引)，从而避免了在每次改变带宽时通过系统消息向UE发送的该目标带宽参数，可以减少系统消息的开销，降低设备的功耗。
本实施例提供的基于变带宽的通信方法，通过网络节点向UE发送带宽参数列表；然后向所述UE发送指示信息，所述指示信息包括目标带宽参数对应的参数索引；所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数；然后所述网络节点与所述UE基于所述目标带宽参数进行通信。实现网络节点向UE通知目标带宽，然后与UE可以在目标带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的带宽上通信，降低了设备的功耗。
可选地，在上述各实施例的基础上，当所述目标中心频点与所述UE当前使用的中心频点不相同时，所述UE在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。可选地，预设符号为两个符号。
可选地，所述UE可以在预先规定的所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，指示信息还用于指示该UE在在所述目标带宽的启动时间之前的预设符号内切换为所述目标中心频点；或者，指示信息还用于指示该UE在在所述目标带宽的启动时间之后的预设符号内切换为所述目标中心频点。 UE根据指示信息在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，在上述各实施例的基础上，还可以包括：所述网络节点向所述UE发送第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力；相应地，所述UE接收所述网络节点发送的所述第一能力指示信息。然后网络节点与UE再执行上述各实施例。
可选地，在上述各实施例的基础上，还可以包括：所述UE向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力；相应地，所述网络节点接收所述UE发送的所述第二能力指示信息。然后网络节点与UE再执行上述各实施例。
本发明中，所述变带宽通信的能力指UE或网络节点具体动态改变系统带宽或调度带宽的能力。
图6为本发明实施例四提供的基于变带宽的通信方法的流程图，如图6所示，本实施例的方法可以包括：
S401、第一网络节点向第二网络节点发送配置更新消息。
所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数。
本实施例中，当该第一网络节点确定某小区需要改变系统带宽后，该第一网络节点向第二网络节点发送配置更新消息，该小区为该第一网络节点对应的小区，例如该小区为该第一网络节点管理的小区；该配置更新消息包括指示信息和该小区的标识。可选地，该小区的相邻小区为该第二网络节点对应的小区(例如该第二网络节点管理的小区)。
其中，指示信息的相关描述可以参见本发明实施例一至三中任一实施例中的相关描述，此处不再赘述。
其中，所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
S402、所述第一网络节点基于所述目标系统带宽参数与第一UE进行通信。
本实施例中，所述小区为所述第一UE的服务小区，然后第一网络节点 基于该目标系统带宽与第一UE进行通信。其中，第一网络节点基于目标系统带宽与第一UE进行通信的实现方案可以参见本发明实施例一至三中任一实施例中的相关描述，此处不再赘述。
S403、所述第二网络节点基于所述目标系统带宽参数配置第二UE的测量参数。
本实施例中，第二网络节点在接收到配置更新消息后，基于该目标系统带宽配置第二UE的测量参数；所述第二UE的服务小区为所述第二网络节点对应的小区，例如第二网络节点管理的小区。可选地，第二UE的服务小区为上述改变系统带宽的小区的相邻小区。
需要说明的是，S402与S403的执行顺序不分先后。
本实施例提供的基于变系统带宽的通信方法，实现了第一网络节点与第一UE可以在目标系统带宽上进行通信，避免了在网络负载相对较低时仍在相对较大的系统带宽上通信，降低了设备的功耗；而且还实现了在改变小区的系统带宽后第一网络节点可以向第二网络节点通知该小区的目标系统带宽，使得第二网络节点基于目标系统带宽参数配置第二UE的测量参数。
图7为本发明实施例一提供的网络节点的结构示意图，如图7所示，本实施例的网络节点包括：发送单元11和处理单元12。
发送单元11，用于向UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
处理单元12，用于所述网络节点基于所述目标带宽参数与所述UE进行通信；
所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，所述发送单元11，还用于在向所述UE发送所述指示信息之前，向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
所述指示信息包括所述目标带宽参数对应的参数索引。
可选地，所述发送单元11，还用于向所述UE发送第一能力指示信息， 所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，所述网络节点还可以包括：接收单元13。
接收单元13，用于接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
本实施例的网络节点，可以用于执行图1-图3所示方法实施例中网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图8为本发明实施例一提供的UE的结构示意图，如图8所示，本实施例的UE包括：接收单元21和处理单元22。
接收单元21，用于接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
处理单元22，用于根据所述指示信息，获取所述目标带宽参数；以及基于所述目标带宽参数，与所述网络节点进行通信；
所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，所述接收单元21，还用于在接收网络节点发送的指示信息之前，接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
所述指示信息包括所述目标带宽参数对应的参数索引；
所述处理单元22在根据所述指示信息获取所述目标带宽参数时，具体用于：所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
可选地，所述处理单元22，还用于在基于所述目标带宽参数与所述网络节点进行通信之前，当所述目标中心频点与所述UE当前使用的中心频点不相同时，在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，所述接收单元21，还用于接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能 力。
可选地，本实施例的UE还包括：发送单元23。
发送单元23，用于向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
本实施例的UE，可以用于执行图1-图3所示方法实施例中UE所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图9为本发明实施例二提供的网络节点的结构示意图，如图9所示，本实施例的网络节点包括：发送单元31和处理单元32。
发送单元31，用于向第二网络节点发送配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
处理单元32，用于基于所述目标系统带宽参数与UE进行通信；所述小区为所述UE的服务小区；
所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
本实施例的网络节点，可以用于执行图6所示方法实施例中第一网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图10为本发明实施例三提供的网络节点的结构示意图，如图10所示，本实施例的网络节点包括：接收单元41和处理单元42。
接收单元41，用于接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
处理单元42，用于基于所述目标系统带宽参数配置UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；
所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
本实施例的网络节点，可以用于执行图6所示方法实施例中第二网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图11为本发明实施例四提供的网络节点的结构示意图，如图11所示， 本实施例的网络节点包括：收发机51和处理器52。本实施例的网络节点还可以包括存储器(未图示)，存储器用于存储执行基于变带宽的通信方法的程序代码。
收发机51，用于向UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
处理器52，用于基于所述目标带宽参数与所述UE进行通信；
所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，收发机51，还用于在向所述UE发送所述指示信息之前，向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
所述指示信息包括所述目标带宽参数对应的参数索引。
可选地，所述收发机51，还用于向所述UE发送第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，所述收发机51，还用于接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
本实施例的网络节点，可以用于执行图1-图3所示方法实施例中网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图12为本发明实施例二提供的UE的结构示意图，如图12所示，本实施例的UE包括：收发机61和处理器62，本实施例的UE还可以包括存储器(未图示)，存储器用于存储执行基于变带宽的通信方法的程序代码。
收发机61，用于接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
处理器62，用于根据所述指示信息，获取所述目标带宽参数；基于所述目标带宽参数，与所述网络节点进行通信；
所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
可选地，所述指示信息还包括所述目标带宽参数。
可选地，收发机61，还用于在接收网络节点发送的指示信息之前，接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
所述指示信息包括所述目标带宽参数对应的参数索引；
所述处理器62在根据所述指示信息，获取所述目标带宽参数时，具体用于：根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
可选地，所述处理器62，还用于在基于所述目标带宽参数与所述网络节点进行通信之前，当所述目标中心频点与所述UE当前使用的中心频点不相同时，在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
可选地，所述收发机61，还用于接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
可选地，所述收发机61，还用于向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
可选地，所述带宽为系统带宽或者调度带宽。
本实施例的UE，可以用于执行图1-图3所示方法实施例中UE所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图13为本发明实施例五提供的网络节点的结构示意图，如图13所示，本实施例的网络节点包括：收发机71和处理器72。本实施例的网络节点还可以包括存储器(未图示)，存储器用于存储执行基于变带宽的通信方法的程序代码。
收发机71，用于向第二网络节点发送配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
处理器72，用于基于所述目标系统带宽参数与UE进行通信；所述小区为所述UE的服务小区；
所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频 点、目标系统带宽的启用时间。
本实施例的网络节点，可以用于执行图6所示方法实施例中第一网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图14为本发明实施例六提供的网络节点的结构示意图，如图14所示，本实施例的网络节点包括：收发机81和处理器82。本实施例的网络节点还可以包括存储器(未图示)，存储器用于存储执行基于变带宽的通信方法的程序代码。
收发机81，用于接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
处理器82，用于基于所述目标系统带宽参数配置UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；
所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
本实施例的网络节点，可以用于执行图6所示方法实施例中第二网络节点所执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：只读内存(英文：Read-Only Memory，简称：ROM)、随机存取存储器(英文：Random Access Memory，简称：RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (30)

  1. 一种基于变带宽的通信方法，其特征在于，包括：
    网络节点向用户设备UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
    所述网络节点基于所述目标带宽参数与所述UE进行通信；
    所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
  2. 根据权利要求1所述的方法，其特征在于，所述指示信息还包括所述目标带宽参数。
  3. 根据权利要求1所述的方法，其特征在于，所述网络节点向所述UE发送所述指示信息之前，所述方法还包括：
    所述网络节点向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
    所述指示信息包括所述目标带宽参数对应的参数索引。
  4. 根据权利要求1-3任意一项所述的方法，其特征在于，所述方法还包括：
    所述网络节点向所述UE发送第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
  5. 根据权利要求1-4任意一项所述的方法，其特征在于，所述方法还包括：
    所述网络节点接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
  6. 根据权利要求1-5任意一项所述的方法，其特征在于，所述带宽为系统带宽或者调度带宽。
  7. 一种基于变带宽的通信方法，其特征在于，包括：
    用户设备UE接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
    所述UE根据所述指示信息，获取所述目标带宽参数；
    所述UE基于所述目标带宽参数，与所述网络节点进行通信；
    所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
  8. 根据权利要求7所述的方法，其特征在于，所述指示信息还包括所述目标带宽参数。
  9. 根据权利要求7所述的方法，其特征在于，用户设备UE接收网络节点发送的指示信息之前，还包括：
    所述UE接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
    所述指示信息包括所述目标带宽参数对应的参数索引；
    所述UE根据所述指示信息，获取所述目标带宽参数，包括：所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
  10. 根据权利要求7-9任意一项所述的方法，其特征在于，所述UE基于所述目标带宽参数与所述网络节点进行通信之前，还包括：
    当所述目标中心频点与所述UE当前使用的中心频点不相同时，所述UE在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
  11. 根据权利要求7-10任意一项所述的方法，其特征在于，所述方法还包括：
    所述UE接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
  12. 根据权利要求7-11任意一项所述的方法，其特征在于，所述方法还包括：
    所述UE向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
  13. 根据权利要求7-12任意一项所述的方法，其特征在于，所述带宽为系统带宽或者调度带宽。
  14. 一种基于变带宽的通信方法，其特征在于，包括：
    第一网络节点向第二网络节点发送配置更新消息，所述配置更新消息包 括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
    所述第一网络节点基于所述目标系统带宽参数与用户设备UE进行通信；所述小区为所述UE的服务小区；
    所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
  15. 一种基于变带宽的通信方法，其特征在于，包括：
    第二网络节点接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
    所述第二网络节点基于所述目标系统带宽参数配置用户设备UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；
    所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
  16. 一种网络节点，其特征在于，包括：
    发送单元，用于向用户设备UE发送指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
    处理单元，用于所述网络节点基于所述目标带宽参数与所述UE进行通信；
    所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
  17. 根据权利要求16所述的网络节点，其特征在于，所述指示信息还包括所述目标带宽参数。
  18. 根据权利要求16所述的网络节点，其特征在于，所述发送单元，还用于在向所述UE发送所述指示信息之前，向所述UE发送带宽参数列表，所述带宽参数列表包括至少一组带宽参数和对应的参数索引，所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
    所述指示信息包括所述目标带宽参数对应的参数索引。
  19. 根据权利要求16-18任意一项所述的网络节点，其特征在于，所述发送单元，还用于向所述UE发送第一能力指示信息，所述第一能力指示信 息用于指示所述网络节点具有变带宽通信的能力。
  20. 根据权利要求16-19任意一项所述的网络节点，其特征在于，还包括：
    接收单元，用于接收所述UE发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
  21. 根据权利要求16-20任意一项所述的网络节点，其特征在于，所述带宽为系统带宽或者调度带宽。
  22. 一种用户设备UE，其特征在于，包括：
    接收单元，用于接收网络节点发送的指示信息，所述指示信息用于指示所述UE的服务小区使用的目标带宽参数；
    处理单元，用于根据所述指示信息，获取所述目标带宽参数；以及基于所述目标带宽参数，与所述网络节点进行通信；
    所述目标带宽参数包括以下至少一种：目标带宽、目标中心频点、目标带宽的启用时间。
  23. 根据权利要求22所述的UE，其特征在于，所述指示信息还包括所述目标带宽参数。
  24. 根据权利要求22所述的UE，其特征在于，所述接收单元，还用于在接收网络节点发送的指示信息之前，接收所述网络节点发送的带宽参数列表，所述带宽参数列表包括至少一组带宽参数与对应的参数索引；所述带宽参数包括以下至少一种：带宽、中心频点、带宽的启用时间；
    所述指示信息包括所述目标带宽参数对应的参数索引；
    所述处理单元在根据所述指示信息获取所述目标带宽参数时，具体用于：所述UE根据所述目标带宽参数对应的参数索引，以及带宽参数列表，获取所述目标带宽参数。
  25. 根据权利要求22-24任意一项所述的UE，其特征在于，所述处理单元，还用于在基于所述目标带宽参数与所述网络节点进行通信之前，当所述目标中心频点与所述UE当前使用的中心频点不相同时，在所述目标带宽的启动时间之前的预设符号内或者所述目标带宽的启动时间之后的预设符号内将使用的中心频点切换为所述目标中心频点。
  26. 根据权利要求22-25任意一项所述的UE，其特征在于，所述接收单 元，还用于接收所述网络节点发送的第一能力指示信息，所述第一能力指示信息用于指示所述网络节点具有变带宽通信的能力。
  27. 根据权利要求22-26任意一项所述的UE，其特征在于，还包括：
    发送单元，用于向所述网络节点发送的第二能力指示信息，所述第二能力指示信息用于指示所述UE具有变带宽通信的能力。
  28. 根据权利要求22-27任意一项所述的UE，其特征在于，所述带宽为系统带宽或者调度带宽。
  29. 一种网络节点，其特征在于，包括：
    发送单元，用于向第二网络节点发送配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
    处理单元，用于基于所述目标系统带宽参数与用户设备UE进行通信；所述小区为所述UE的服务小区；
    所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
  30. 一种网络节点，其特征在于，包括：
    接收单元，用于接收第一网络节点发送的配置更新消息，所述配置更新消息包括指示信息和小区的标识；所述指示信息用于指示所述小区的目标系统带宽参数；
    处理单元，用于基于所述目标系统带宽参数配置用户设备UE的测量参数；所述UE的服务小区为所述第二网络节点管理的小区；
    所述目标系统带宽参数包括以下至少一种：目标系统带宽、目标中心频点、目标系统带宽的启用时间。
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