WO2019029330A1 - 一种辅小区激活方法、接入网设备、通信装置以及系统 - Google Patents

一种辅小区激活方法、接入网设备、通信装置以及系统 Download PDF

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Publication number
WO2019029330A1
WO2019029330A1 PCT/CN2018/096208 CN2018096208W WO2019029330A1 WO 2019029330 A1 WO2019029330 A1 WO 2019029330A1 CN 2018096208 W CN2018096208 W CN 2018096208W WO 2019029330 A1 WO2019029330 A1 WO 2019029330A1
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Prior art keywords
reference signal
access network
configuration information
terminal device
network device
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PCT/CN2018/096208
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English (en)
French (fr)
Inventor
李秉肇
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2020507528A priority Critical patent/JP7007460B2/ja
Priority to EP21191765.3A priority patent/EP3975608A1/en
Priority to EP18844064.8A priority patent/EP3648497B1/en
Publication of WO2019029330A1 publication Critical patent/WO2019029330A1/zh
Priority to US16/784,119 priority patent/US11218264B2/en
Priority to US17/535,264 priority patent/US11876744B2/en
Priority to US18/216,949 priority patent/US12041003B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for implementing a secondary cell activation, an access network device, a communication device, and a system.
  • CA Carrier Aggregation
  • one access network device can have multiple different cells, and the terminal device can simultaneously and under one access network device. Different cells remain connected.
  • CA means that the carrier used in the communication process is not limited to one, but communicates simultaneously on one primary carrier and several secondary carriers.
  • a cell aggregated by a terminal device having a carrier aggregation function is divided into a primary cell and a plurality of secondary cells.
  • the secondary cell can be activated and deactivated as needed during use. For example, if there is no data transmission between the access network device and the terminal device for a period of time, the access network device may deactivate the secondary cell.
  • the deactivated secondary cell is not used for data transmission between the access network device and the terminal device.
  • the secondary cell is activated as needed.
  • the activated secondary cell is reused for data transmission between the access network device and the terminal device.
  • one cell may correspond to one carrier set, and the carrier set includes at least one carrier.
  • the terminal device when the terminal device needs to activate the secondary cell, the terminal device needs to send a channel status information (CSI) of the secondary cell to the access network device to implement activation of the secondary cell.
  • the terminal device usually reports the channel status information (CSI) of all the cells to the access network device through the physical uplink control channel (PUCCH) of the primary cell.
  • the terminal device receives the secondary cell activation command sent by the access network device in the subframe N, the terminal device starts from the preset time (for example, the subframe N+8), and carries the CSI of the activated secondary cell.
  • Sent to the access network device in the CSI report It is possible that the terminal device has not obtained a valid CSI measurement value in the CSI report starting from the preset time. At this time, the terminal device needs to fill the CSI with a special measurement value to notify the access network device terminal device that the valid measurement value has not been obtained.
  • the terminal device begins to fill in normal CSI measurements.
  • one cell corresponds to one carrier, and cell activation is carrier activation.
  • the terminal device performs CSI measurement on the common reference signal (CRS) of the cell to be reported to the access network device, and the measurement may be radio resource management (Radio Resource Management, Referred to as RRM) measurement.
  • RRM Radio Resource Management
  • the terminal device can only receive and measure the CRS in a state of being synchronized with the cell to be activated. The above reasons lead to the inflexibility of the existing CRS-based activation method, and the activation efficiency is not high enough. Moreover, this activation method can only be applied to systems compatible with CRS, and the versatility is poor.
  • the present invention provides a secondary cell activation method, an access network device, a communication device, and a system, which can provide a flexible and efficient secondary cell activation mechanism.
  • a method for activating a secondary cell including:
  • the access network device sends an activation command to the terminal device, where the activation command is used to indicate that the secondary cell is activated;
  • the access network device sends a first reference signal to the terminal device according to the first configuration information, where the first reference signal is used to obtain a channel measurement result of the secondary cell.
  • the access network device can send the first reference signal and the first configuration information of the first reference signal to the terminal device, so that the terminal device performs channel measurement on the first reference signal according to the first configuration information.
  • the solution overcomes the measurement and activation of the secondary cell in the prior art only according to the fixed configuration of the CRS, improves the flexibility of the secondary cell activation, and improves the secondary cell activation efficiency.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or a reference signal is located between two adjacent second reference signals of the terminal device in a time domain, and the two adjacent second reference signals are configured by using the same second configuration information;
  • the first reference signal configured by using the first configuration information may be temporarily sent on the premise that the second reference signal configured by using the second configuration information is configured, and the terminal device quickly responds to the activation command to measure the secondary cell without affecting the current pass.
  • the transmission of the second reference signal configured by the second configuration information may be temporarily sent on the premise that the second reference signal configured by using the second configuration information is configured, and the terminal device quickly responds to the activation command to measure the secondary cell without affecting the current pass.
  • the second reference signal is periodic.
  • the first reference signal is a synchronization signal SS or a channel state information reference signal CSI-RS.
  • the reference signal is a synchronization signal; and when the synchronization signal is configured for use in a secondary cell activation Channel measurement can realize that the terminal device is in an out-of-synchronization state immediately, and can still perform channel measurement quickly and in time to obtain channel measurement results.
  • the reference signal is a channel state information reference signal; because the channel state information reference signal is sparsely distributed on resources, occupying less resources
  • the access network device can relatively easily obtain the available resources for transmitting the first reference signal, so that the terminal device can quickly perform channel measurement and acquire the channel. Measurement results.
  • the activation command includes the first configuration information
  • the activation command includes a first portion of the first configuration information, and the access network device transmits a second portion of the first configuration information before transmitting the activation command.
  • the first configuration information includes at least one of the following information:
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • a reference signal sending time of the first reference signal is a time when the access network device sends the first reference signal, and a time when the access network device sends the activation command. The relative time difference, or the time at which the first reference signal is sent by the access network device.
  • the method before the sending network device sends the first reference signal to the terminal device according to the configuration information, the method further includes: when the second reference signal available to the terminal device exceeds the current time difference The first threshold, the access network device determines to send the first reference signal to the terminal device.
  • the first threshold is preset
  • the access network device receives the channel measurement result from the terminal device.
  • the first aspect also provides a secondary cell activation method, including:
  • the terminal device receives an activation command from the access network device, where the activation command is used to indicate that the secondary cell is activated;
  • the terminal device receives the first reference signal according to the first configuration information, and acquires a channel measurement result of the secondary cell according to the first reference signal.
  • the terminal device can receive the first reference signal and the first configuration information of the first reference signal from the access network device, so that the terminal device performs channel measurement on the first reference signal according to the first configuration information.
  • the solution overcomes the measurement and activation of the secondary cell in the prior art only according to the fixed configuration of the CRS, improves the flexibility of the secondary cell activation, and improves the secondary cell activation efficiency.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or
  • the first reference signal is located between two adjacent second reference signals of the terminal device in the time domain, and the two adjacent second reference signals are configured by the same second configuration information.
  • the second reference signal is periodic.
  • the first reference signal is a synchronization signal, or a channel state information reference signal.
  • the activation command includes the first configuration information; or the terminal device receives the first configuration information before receiving the activation command; or the activation command includes the And a first part of the first configuration information, the terminal device receiving the second part of the first configuration information before receiving the activation command.
  • the first configuration information includes at least one of the following information:
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the first reference signal sending time is a time difference between a time when the access network device sends the first reference signal and a time when the access network device sends the activation command, Or the time when the first reference signal is sent by the access network device.
  • the terminal device sends the channel measurement result to the access network device.
  • an access network device including: a transmitter and a processor, where:
  • the processor is configured to determine first configuration information of the first reference signal
  • the transmitter is configured to send an activation command to the terminal device, where the activation command is used to indicate that the secondary cell is activated;
  • the transmitter is further configured to send, to the terminal device, first configuration information of the first reference signal determined by the processor;
  • the transmitter is further configured to send the first reference signal to the terminal device according to the first configuration information, where the first reference signal is used to obtain a channel measurement result of the secondary cell.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or A reference signal is located between two adjacent second reference signals of the terminal device in the time domain, and the two adjacent second reference signals are configured by the same second configuration information.
  • the reference signal is a synchronization signal; if the processor determines that the terminal device is synchronized with the secondary cell
  • the reference signal is a channel state information reference signal.
  • the activation command includes the first configuration information; or the transmitter sends the first configuration information before sending the activation command; or the activation command includes the first A first portion of the configuration information, the transmitter transmitting the second portion of the first configuration information prior to transmitting the activation command.
  • the method before the sending, by the transmitter, the first reference signal to the terminal device according to the configuration information, the method further includes:
  • the processor determines that the second reference signal available to the terminal device and the current time difference exceeds a first threshold, the processor determines to send the first reference signal to the terminal device, where the first The threshold is preset.
  • the access network device further includes a receiver, and the receiver is configured to receive the channel measurement result from the terminal device.
  • the second aspect also provides a communication device, the communication device comprising a receiver and a processor:
  • the receiver is configured to receive an activation command from an access network device, where the activation command is used to indicate that the secondary cell is activated;
  • the receiver is further configured to receive first configuration information of the first reference signal from the access network device;
  • the receiver is further configured to receive the first reference signal according to the first configuration information
  • the processor is configured to acquire a channel measurement result of the secondary cell according to the first reference signal.
  • the first reference signal is located in the time domain before the second reference signal available to the communication device, and the second reference signal is configured by the second configuration information;
  • the first reference signal is located between two adjacent second reference signals of the communication device in a time domain, and the two adjacent second reference signals are configured by the same second configuration information.
  • the activation command includes the first configuration information; or the receiver receives the first configuration information before receiving the activation command; or the activation command includes the first And a first portion of the configuration information, the receiver receiving the second portion of the first configuration information prior to receiving the activation command.
  • the communication device further includes a transmitter for transmitting the channel measurement result to the access network device.
  • the second reference signal is periodic.
  • the first reference signal is a synchronization signal, or a channel state information reference signal
  • the first configuration information includes at least one of the following information:
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the reference signal transmission time of the first reference signal is a time when the access network device (the transmitter of the access network device) sends the first reference signal with respect to the access network device.
  • the present invention provides a system comprising the access network device and the communication device provided by the second aspect above.
  • the present invention provides a communication apparatus including a processor and a memory, the memory storing a computer program, and when the processor executes the computer program, implementing the method described in the above aspects.
  • the present invention provides a computer storage medium storing a computer program having stored thereon a computer program that, when executed by a processor, implements the methods described in the above aspects.
  • the present invention provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • the present invention provides a chip system including a processor for supporting an access network device or a communication device to implement the functions involved in the above aspects, for example, for example, generating or processing the method involved in the above method Data and / or information.
  • the chip system further comprises a memory for storing program instructions and data necessary for the access network device or the communication device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the embodiment of the present invention provides a secondary cell activation method, an access network device, a communication device, and a communication system.
  • the access network device may send the first reference signal and the first reference to the terminal device.
  • the first configuration information of the signal is such that the terminal device performs channel measurement on the first reference signal according to the first configuration information.
  • FIG. 1 is a flowchart of a secondary cell activation method in a conventional LTE system
  • FIG. 2 is a schematic structural diagram of a communication system 100 according to the embodiment.
  • FIG. 3 is a flowchart of a secondary cell activation method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of synchronization signal transmission in a multi-beam scenario in an NR system
  • FIG. 5 is a schematic diagram of an optional configuration of a first reference signal in a secondary cell activation method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another access network device according to the embodiment.
  • FIG. 8 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another communication apparatus according to the embodiment.
  • a terminal device measures a reference signal and feeds back a measurement result in response to an activation command received from an access network device.
  • the terminal device does not listen to the downlink control channel, does not send uplink data, and the channel state information, etc., on the secondary cell.
  • the terminal device starts corresponding interception and transmission. What needs to be explained here is:
  • the access network device needs to obtain information about the current downlink channel state from the terminal device, which is commonly referred to as channel state information (CSI).
  • CSI channel state information
  • the CSI includes Channel Quality Information (CQI), Precoding Matrix Indication (PMI), and Rank Indication (RI).
  • CQI Channel Quality Information
  • PMI Precoding Matrix Indication
  • RI Rank Indication
  • other forms of CSI are also included, such as explicit channel quantization, effective channel quantization including receiver processing, noise plus interference feedback, and receive covariance feedback.
  • the specific content included in the CSI is not limited.
  • the CSI report may be that the terminal periodically reports according to the configuration information of the CSI, or may be fed back by the terminal device in response to the request of the access network device, and the terminal device may determine, according to the location where the request is received, the cell to be measured or the access network device. Information for identifying the cell is included in the request to cause the terminal device to determine the cell that needs to be measured. In order to feed back the CSI measurement report, the terminal device needs to measure the downlink reference signal.
  • FIG. 1 is a method for activating a secondary cell in a conventional LTE system.
  • one cell corresponds to one carrier
  • the cell activation is the same as the technical process involved in carrier activation
  • the reference signal used for performing CSI measurement in the LTE system is a common reference signal CRS.
  • the access network device needs to activate the secondary cell for the terminal device
  • the secondary cell activation command is sent to the terminal device.
  • the terminal device performs channel measurement and feeds back CSI according to the reference signal in response to the activation command.
  • the terminal device Before obtaining the valid CSI measurement value, the terminal device needs to obtain preliminary synchronization according to the synchronization signal of the secondary cell, and then obtain fine synchronization according to the reference signal of the secondary cell, thereby performing CSI measurement and generating CSI.
  • the terminal device receives the first secondary cell activation command in the subframe N, in order to unify the understanding of the access network device and the terminal device, the terminal device starts reporting the CSI of the secondary cell to be activated after the subframe N+8. For example, according to the CSI reporting period, the terminal device needs to report CSI in subframe N+4 and subframe N+10.
  • the CSI report of the first secondary cell is not carried in the CSI report of the subframe N+4, and the CSI report of the first secondary cell is carried in the subframe N+10.
  • the time at which the terminal device can obtain valid CSI may be different according to the terminal device's tracking state for the deactivated secondary cell. For example, whether the terminal device maintains a synchronization state with the secondary cell, or whether the terminal device measures the secondary cell within a certain time. If the terminal device and the secondary cell are in an out-of-synchronization state or the secondary cell is not measured in a certain period of time, the CSI reporting may be performed for the first time in the subframe subframe N+10 after the subframe N+8.
  • the terminal device has not yet obtained a valid CSI measurement value, and the terminal device needs to fill the CSI reported in the subframe N+10 with a special measurement value to notify the access network device that the terminal device has not obtained a valid measurement value.
  • the terminal device receives and measures the CRS in the synchronized state, and obtains a valid CSI measurement value, the terminal device starts to fill the normal CSI measurement value.
  • the terminal device cannot be later than the subframe N+24 at the latest (for example, the terminal device has recently measured the secondary cell, or the terminal device and the secondary cell remain synchronized) or the subframe N+34 (for example, the recent terminal device has not measured the secondary device).
  • the cell, or the terminal device and the secondary cell are in an out-of-synchronization state, begin to report valid CSI. For example, if the terminal device has measured the secondary cell for a period of time before the activation command is received, the valid CSI must be reported before the subframe N+24; if the terminal device has not measured the secondary time before the activation command is received, For a cell, a valid CQI must be reported before the subframe N+34.
  • the delay between the access network device and the terminal device is ignored to ensure that the signal or information transmission time between the access network device and the terminal device is the same.
  • the technology involved in the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various radio access technologies, for example, using code division multiple access, frequency division multiple access, and time division multiple access.
  • LTE Long Term Evolution
  • it can be applied to the subsequent evolution system using the LTE system, and a new wireless system (New Radio, NR for short), such as a fifth generation 5G system.
  • the system includes an access network device and a terminal device, where the access network device includes at least one cell, and the terminal provides a service for the terminal device.
  • a plurality of component carriers serving a terminal device are divided into a primary component carrier and a secondary component carrier, and a cell aggregated by a terminal device having a carrier aggregation function is divided into a primary cell and a plurality of secondary cells.
  • the cell corresponding to the primary component carrier is referred to as a primary cell
  • the cell corresponding to the secondary component carrier is referred to as a secondary cell.
  • the primary cell (PCell) is a non-access stratum (NAS) mobility provided during radio resource control (RRC) connection establishment, re-establishment, or handover.
  • RRC radio resource control
  • TAI Tracking Area Identity
  • the secondary cell can be activated or deactivated by the access network device, and provides data transmission for the access network device and the terminal device when activated. It should be noted that the functions of the primary cell and the secondary cell may be different in different systems. With the development of the technology, there may be further meanings in the NR system, which is not specifically limited herein.
  • the terminal device to which the present invention relates is a device having a wireless transceiving function, which can be deployed on land, including indoor or outdoor, handheld or on-board; or can be deployed on the water surface (such as a ship, etc.); (eg aircraft, balloons and satellites, etc.).
  • the terminal device may be a mobile phone, a tablet (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( Wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety A wireless terminal, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • the access network device involved in the present invention is a device deployed in a radio access network to provide a wireless communication function for a terminal device, such as a base station (BS).
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the name of a base station having a base station function may be different.
  • an evolved Node B evolved Node B: eNB or eNodeB
  • eNB evolved Node B
  • 3G network it is called a Node B (Node B), etc., and may be referred to as a gNB for a subsequent evolved system.
  • the network device 12 may also be divided into a Control Unit (CU) and a Data Unit (DU). Under one CU, multiple DUs may exist, where each DU and terminal The measurement reporting method described in the embodiment of the present application can be used.
  • CU Control Unit
  • DU Data Unit
  • the CU-DU separation scenario is that the TRP is only a radio unit or an antenna device, and the protocol stack function can be implemented in the DU.
  • the physical layer function can be implemented in the DU.
  • an embodiment of the access network device and the terminal device is taken as an example.
  • FIG. 2 is a schematic structural diagram of the communication system 100 according to the embodiment.
  • the communication system includes access network devices and terminal devices 1 and 2.
  • the serving cells of the terminal device 1 and the terminal device 2 are from the same access network device.
  • a plurality of component carriers serving a terminal device are divided into a primary component carrier and a secondary component carrier, and a cell aggregated by a terminal device having a carrier aggregation function is divided into a primary cell and a plurality of secondary devices.
  • a cell, a cell corresponding to a primary component carrier is referred to as a primary cell, and a cell corresponding to a secondary component carrier is referred to as a secondary cell.
  • a primary cell is a cell that is determined when the terminal device is initially accessed.
  • the terminal device establishes a radio resource control connection in the primary cell, and performs initial call setup and radio resource control on the primary cell.
  • RRC radio resource control
  • SCell is added during RRC reconfiguration to provide additional radio resources and assume data transmission functions.
  • the access network device can activate or deactivate the secondary cell as needed.
  • the terminal device does not listen to the downlink control channel, does not send uplink data, and the channel state information, etc., on the secondary cell. After the secondary cell is activated, the terminal device starts corresponding interception and transmission.
  • the terminal device 1 and the terminal device 2 are respectively connected to multiple carriers of the access network device, and the serving cell of the terminal device 2 is composed of a primary cell and two secondary cells (secondary cell 1 and secondary cell 2), and the terminal device
  • the serving cell of 1 consists of a primary cell and a secondary cell 1.
  • the access network device When the secondary cell needs to be activated, the access network device sends an activation command to the terminal device.
  • the terminal device measures the channel state and feeds back the measurement result of the channel state in response to the activation command received from the access network device.
  • the terminal device In order to obtain channel state information, the terminal device needs to measure the downlink reference signal. That is, during the secondary cell activation process, the access network device needs to obtain a measurement result of the downlink channel state from the terminal device, such as channel state information (CSI).
  • the CSI is composed of Channel Quality Information (CQI), Precoding Matrix Indication (PMI), and Rank Indication (RI); Other forms of CSI, such as noise plus interference feedback and reception covariance feedback.
  • CQI Channel Quality Information
  • PMI Precoding Matrix Indication
  • RI Rank Indication
  • Other forms of CSI such as noise plus interference feedback and reception covariance feedback.
  • the specific content included in the CSI is not limited.
  • the reference signal used in the NR system of the embodiment of the present invention may no longer include the CRS.
  • the reference signal used for channel state measurement required for secondary cell activation includes a synchronization signal or an additional reference signal (ARS).
  • the synchronization signal includes a primary synchronization signal and a secondary synchronization signal.
  • the transmission period of the reference signal is configurable.
  • the sync signal may also contain other types of signals.
  • one or more of the plurality of different signals included in the synchronization signal may be measured, which is not specifically limited herein.
  • the synchronization signal is a known sequence and may be a sequence with good autocorrelation and low cross-correlation such as Zadoff-Chu (ZC) sequence.
  • the terminal device synchronizes with the synchronization signal from the access network device according to the local sequence, and synchronizes with the access network device.
  • NR uses beamforming technology in NR systems. Beamforming technology can control the direction of propagation by analog beam and/or digital beam, resulting in significant gain.
  • the NR system transmits a control channel based on a beamforming transmission mode.
  • the reference signals corresponding to the control channel are also transmitted using the same beam. For more flexible synchronization, the transmission period of the synchronization signal can be dynamically configured.
  • one cell corresponds to at least one beam (Beam).
  • the synchronization signal of each cell includes at least one sync block (SS block).
  • Corresponding sync signal blocks are respectively sent on at least one beam corresponding to the cell. That is, the synchronization signals of the multiple cells are transmitted in the synchronization signal set period, and include a plurality of synchronization signal bursts (SS bursts) in one cycle, each synchronization signal burst corresponds to one cell, and each synchronization signal burst includes at least one Synchronization signal block.
  • SS bursts synchronization signal bursts
  • the access network device When performing secondary cell activation, the access network device needs to send a synchronization signal block on part or all of the beams of the at least one beam, and the terminal device measures each synchronization signal block, and feeds back measurement results for each synchronization signal block. Report the CSI to the access network device.
  • CSI measurements can also be made based on additional reference signals.
  • the additional reference signal may include, for example, a Channel State Information-Reference Signal (CSI-RS).
  • CSI-RS Channel State Information-Reference Signal
  • the additional reference signal can be sent separately for the terminal device. Therefore, the transmission period or transmission frequency of the additional reference signal can also be configured to facilitate faster and more accurate measurement.
  • the embodiment provides a secondary cell activation method, and the access network device may send the first reference signal and the first configuration information of the first reference signal to the terminal device, so that the terminal device performs the first reference signal according to the first configuration information.
  • Channel measurement provides flexibility and activation efficiency for secondary cell activation.
  • the activation command may be used to indicate that one or more secondary cells are activated.
  • the access network device activates the same for each secondary cell.
  • the following is an example of an activation process for a secondary cell.
  • a method for activating a secondary cell provided by an embodiment of the present invention may be applied to any one of the multiple activated secondary cells to be activated.
  • a flowchart of a method for implementing a secondary cell activation includes:
  • Step 301 The access network device sends an activation command to the terminal device, where the activation command is used to indicate that the secondary cell is activated, and the terminal device receives the activation command.
  • Step 302 The access network device sends first configuration information of the first reference signal to the terminal device, where the terminal device receives the first configuration information.
  • the first reference signal is used by the terminal device to perform channel measurement in response to an activation command, and generate a measurement result.
  • Step 303 The access network device sends the first reference signal to the terminal device according to the first configuration information, where the first reference signal is used to obtain a channel measurement result of the secondary cell.
  • Step 304 The terminal device measures the first reference signal according to the first configuration information to obtain a channel measurement result.
  • the access network device is configured to perform secondary cell activation on the terminal device.
  • the method further includes the step 305: the terminal device sends the channel measurement result to the access network device, where the access network device receives the channel measurement result from the terminal device. After the final access network device receives the measurement result, the access network device and the terminal device can perform data or information transmission through the secondary cell.
  • the access network device may send the first reference signal and the first configuration information of the first reference signal to the terminal device, so that the terminal device performs channel measurement on the first reference signal according to the first configuration information.
  • the solution overcomes the measurement and activation of the secondary cell in the prior art only according to the fixed configuration or the fixed period CRS, improves the flexibility of the secondary cell activation, and improves the secondary cell activation efficiency.
  • the access network device may send an activation command to the terminal device by using the primary cell or the secondary cell in the activated state.
  • the activation command may be physical layer signaling or higher layer signaling, such as media access control (MAC) signaling or RRC signaling.
  • the activation command may include an indication for activating and/or deactivating at least one secondary cell, and may also include or otherwise indicate an identity of the secondary cell that is activated or deactivated, such as a cell radio network temporary identity (Cell Radio Network) Temporary Identifier (C-RNTI).
  • C-RNTI cell radio network temporary identity
  • the specific indication manner may use different states of the bits to represent activation and deactivation respectively; the format, type and indication manner of the activation command are not specifically limited herein.
  • the format of MAC layer signaling for activating and/or deactivating a secondary cell may be as follows:
  • the MAC signaling includes indication bits C1-C7 and 1 reserved bit R, and each indicator bit can be 1 bit.
  • the indication bits C1-C7 correspond to 7 secondary cells. For example, the seven secondary cells correspond to C1-C7 in order from the lowest to the highest of the cell identity. If the value of any one of the indication bits C1-C7 is 1, it means that the secondary cell corresponding to the indication bit is activated. If the value of the indication bit is 0, it indicates that the secondary cell corresponding to the indication bit is deactivated.
  • the access network device determines whether the secondary cell needs to be activated for the terminal device, for example, whether there is a large amount of data to be transmitted between the access network device and the terminal device, or the primary cell and the current The secondary cell in the active state cannot satisfy the transmission requirements and the like.
  • the access network device collects the data transmission amount between the terminal device and the terminal device for a period of time, and the current secondary cell cannot meet the transmission requirement; or the access network can receive the feedback information from the terminal device, where the feedback information is used by the access network.
  • the terminal device determines that the service has a large demand for the carrier resource, or has a high demand for the network bandwidth, and sends a feedback message to the access network device when the requirement meets a certain threshold.
  • the feedback information can be an activation request.
  • the access network device may determine the number of the secondary cells that need to be activated and the corresponding secondary cells according to a rule. For example, according to the load condition of each secondary cell that is maintained, the access network device determines one or more secondary cells whose historical load is relatively light as the secondary cell that is activated this time; for example, the access network device is randomly Selecting one or more secondary cells in a deactivated state; for example, the access network device determines, according to a rule, the number of secondary cells that need to be activated and the corresponding secondary cells, where the rules are pre-configured by the access network device, or The terminal equipment is pre-agreed or specified by the agreement or standard. The access network device may further determine the number of secondary cells that need to be activated according to the amount of data transmitted between the terminal device and the terminal device. There is no specific limit here.
  • the first reference signal may be any reference signal that can be used for channel measurement by the terminal device.
  • the possible configuration manners of the first reference signal in the specific implementation are respectively explained by the first and second embodiments in this embodiment.
  • the first reference signal refers to a periodically configurable reference signal, and the reference signal is defaulted or specified in the communication system for the terminal device to perform channel measurement in response to the secondary cell activation command.
  • the terminal device waits to receive and measure the downlink reference signal according to the configuration information of the first reference signal in response to the activation indication, thereby overcoming the defects caused by the secondary cell measurement only by the CRS in the prior art. Increased flexibility in secondary cell activation.
  • the first reference signal may be a synchronization signal SS or an additional reference signal (ARS).
  • the access network device may send the first configuration information of the first reference signal to the terminal device, such as radio resource control (RRC) signaling, broadcast information, and MAC, in any one of multiple notification manners. Signaling, physical layer signaling, etc.
  • the additional reference signal may specifically be a CSI-RS or a Mobility Reference Signal (MRS).
  • the first configuration information includes at least one of: a reference signal transmission indication; a reference signal transmission time; a reference signal period; a reference signal time domain resource location; a reference signal frequency domain resource location; and a reference signal configuration index,
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the first reference signal sending time is a time difference between a time when the access network device sends the first reference signal and a time when the access network device sends the activation command, or is The time at which the access network device sends the first reference signal.
  • the first reference signal is a synchronization signal
  • the terminal device may use the first reference signal to perform secondary cell activation, regardless of whether the terminal device is in synchronization with the secondary cell to be activated. Specifically, if the terminal device is in an unsynchronized state with the secondary cell to be activated, the terminal device receives the synchronization signal for synchronization and measurement; if the terminal device is not in synchronization with the secondary cell to be activated, the terminal device measures the synchronization signal to Obtain channel measurement results.
  • the first reference signal is an additional reference signal.
  • CSI-RS CSI-RS
  • the first reference signal is configured by the access network device by using the first configuration information before the access network device sends the activation command, and is not sent by the activation command or the secondary cell activation.
  • the transmission period of the synchronization signal can be dynamically configured. Although the sync signal is sent periodically, the period can be longer or shorter.
  • the terminal device needs to wait for a long time. Make measurements. The following is a detailed description with reference to FIG. 4.
  • FIG. 4 is a schematic diagram of synchronous signal transmission in a multi-beam scene in an NR system. Under multi-beam transmission, the secondary cell may interact with the terminal device over multiple beams.
  • the access network device When transmitting the synchronization signal, the access network device needs to separately transmit corresponding synchronization signal blocks on part or all of the multiple beams corresponding to the secondary cell to form a synchronization signal burst.
  • the terminal device receives an activation command of the secondary cell to be activated, the synchronization signal burst (corresponding to the black beam) corresponding to the secondary cell to be activated has just passed, the terminal device needs to wait for the next synchronization.
  • a burst of sync signals in the signal period (corresponding to a black beam). Therefore, this introduces a large delay in the secondary cell activation process, especially in the case where the synchronization signal period is relatively large.
  • the first reference signal access network device is temporarily configured or temporarily sent by the terminal device in response to the secondary cell activation command.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information.
  • the second reference signal may be the same reference signal as the first reference signal, for example, the first reference signal and the second reference signal are both synchronization signals.
  • the second reference signal may also be a reference signal different from the first reference signal, for example, the first reference signal is a synchronization signal, and the second reference signal is an additional reference signal.
  • the first reference signal and the second reference signal are both synchronous signals as an example.
  • the access network device determines that the period of the second reference signal currently configured for synchronization is long, and the terminal device needs to wait for a long time to receive the available second reference signal during the activation of the secondary cell, the access network device
  • the first configuration information may be sent to the terminal device to configure a shorter reference signal for secondary cell activation.
  • the access network device may send the second configuration information configuration to restore the original periodic configuration of the second synchronization signal, or reconfigure the period of the second synchronization signal.
  • the first reference signal is located between two adjacent second reference signals of the terminal device in a time domain, and the two adjacent second signals
  • the reference signal is configured by the same second configuration information.
  • the second reference signal may be the same reference signal as the first reference signal, for example, the first reference signal and the second reference signal are both synchronization signals.
  • the second reference signal may also be a reference signal different from the first reference signal, for example, the first reference signal is a synchronization signal, and the second reference signal is an additional reference signal.
  • the access network device configures the second reference signal with a certain period by using the second configuration information.
  • the access network device determines that the period of the second reference signal currently configured for synchronization is long, and the terminal device needs to wait for a long time to receive the available second reference signal during the activation of the secondary cell, the access network device
  • the first reference signal may be temporarily inserted between two adjacent second reference signals. In this way, the access network device does not need to reconfigure the second reference signal, and only needs to configure the first reference signal by using the first configuration information.
  • the configuration of the first reference signal is different from the configuration of the existing reference signal of the same type, and the first reference signal is temporarily sent for secondary cell activation.
  • the configuration information of the temporarily transmitted first reference signal is referred to herein as the first configuration information, which will be pre-configured or dynamically configured before the first reference signal is configured, and
  • the reference signal of the same type of the first reference signal is referred to as a third reference signal, and the configuration information of the third reference signal is referred to as third configuration information.
  • the embodiment of the present invention does not limit whether the third reference signal is a configuration of a periodic or non-periodic reference signal.
  • the first configuration information is used to determine, when the secondary network is activated, the access network device determines that the resource is available to temporarily send the first reference signal for the secondary cell activation, specifically by using high layer signaling or The physical layer signaling is sent to the terminal device, which is not specifically limited herein.
  • the CSI-RS is taken as an example for description.
  • the second reference signal is a reference signal specified in the communication system for performing channel measurement in response to the secondary cell activation command or a reference signal functionally operable for channel measurement in response to the secondary cell activation command, except In addition to this, the second reference signal is also configured for measurements for other purposes (eg, the synchronization signal is configured for synchronization purposes).
  • the configuration information of the second reference signal is referred to as the second configuration information, and the second configuration information is semi-statically or dynamically configured by the access network device, or is specified by a protocol or a standard, or is determined by the access network device and the terminal device. Or it is determined by other forms for the secondary cell activation, and does not change due to the secondary cell activation scenario.
  • the first reference signal is a reference signal for temporarily transmitting channel measurement for secondary cell activation, and configuration information of the first reference signal is referred to as first configuration information.
  • the first and second reference signals may be the same type of reference signal, or may be different types of reference signals.
  • the access network device needs to determine whether to send the first reference signal to the terminal device. For details, refer to FIG. 5, where FIG. 5 is the first in the secondary cell activation method. An optional configuration diagram of the reference signal.
  • the access network device determines that the terminal device activates the secondary cell, and sends an activation command at time t1, and the access network device determines, according to the second configuration information, that the time t0 and t2 are the access network device according to the second configuration.
  • the access network device may temporarily send a set of first reference signals at time t3 between t1 and time t2 for use in The terminal device can quickly detect the reference signal and feed back the measurement result in response to the activation command.
  • the temporarily transmitted reference signal is sent according to the first configuration information, and the first configuration information needs to be notified to the terminal device before the temporarily transmitted reference signal is sent.
  • the content and transmission method of the first configuration information will be described in detail below.
  • the access network device determines a first threshold, so that the access network device determines to temporarily send a set of reference signals for secondary cell activation if the first duration t is greater than a first threshold.
  • the first threshold may be determined by the access network device, or may be determined by a standard or a protocol, or may be determined according to the terminal device and the terminal device, and is not specifically limited herein.
  • the access network device in order to send the first reference signal, the access network device further needs to determine that available resources are used to send the first reference signal, and according to The available resources determine the first configuration information.
  • the second embodiment will be further exemplified below.
  • the first reference signal is the synchronization signal SS
  • the first configuration information in step 302 is configuration information of the synchronization signal SS temporarily sent for secondary cell activation.
  • the period of the synchronization signal SS is fixed, for example, 5 ms; in the NR system, the period of the synchronization signal may be dynamic. Configurable, the length of each cycle may vary greatly.
  • the access network device may temporarily send the SS for the terminal device to measure the secondary cell.
  • the access network device determines that a set of synchronization signals needs to be temporarily sent, and the access network device needs to determine whether resources are available for transmitting the synchronization signal, and if yes, determine The first configuration information; if not, the access network device cannot temporarily send the synchronization signal, and the terminal device can wait to receive and measure the synchronization signal at the next moment according to the second configuration information according to the activation command.
  • the access network device determines that there is a resource that can be used to temporarily send the first reference signal, that is, the synchronization signal
  • the first configuration information of the resource that temporarily sends the synchronization signal and the synchronization signal are sent to the terminal device.
  • the synchronization signal that is temporarily sent by the group may be periodic, or may be a single synchronization signal transmission, which is not specifically limited herein.
  • the first configuration information of the temporarily inserted synchronization signal needs to be transmitted to the terminal device for the terminal device to receive and measure.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the available second reference signal is configured by using the second configuration information.
  • the first reference signal is located in the time domain between two second reference signals adjacent in the time domain configured by the second configuration information.
  • the access network device in response to the secondary cell activation command, may be configured in advance by the first configuration information before the next second reference signal in the time domain available for channel measurement of the secondary cell activation is transmitted. Transmitting the first reference signal to the terminal device, so that the terminal device does not need to wait for the available second reference signal that arrives after a long time, and quickly receives the first reference signal for channel measurement, And obtaining channel measurement results, improving the efficiency of secondary cell activation.
  • the first reference signal and the second reference signal belong to the same type of reference signal, and are distributed in different positions in the time domain, and the sending of the first reference signal is configured by using the first configuration information.
  • the second reference signal is sent through the second configuration information, and is used for synchronization of the terminal device.
  • the second reference signal is periodically sent, and the multiple second reference signals are distributed in different time domain locations, which are not specifically limited herein.
  • the second reference signal may be other types of reference signals than the synchronization signal, such as an additional reference signal.
  • an additional reference signal is an example of CSI-RS.
  • the access network device determines that a set of synchronization signals needs to be temporarily sent, and the access network device needs to determine whether resources are available for transmitting the synchronization signal, and if yes, determine The first configuration information; if not, the access network device cannot temporarily send the synchronization signal, and the terminal device can follow the activation command according to the second configuration information of the second reference signal CSI-RS for the secondary cell activation specified by the communication system. Waiting to receive and measure the next available second reference signal.
  • the access network device determines that there is a resource that can be used to temporarily send the first reference signal, that is, the synchronization signal
  • the first configuration information of the resource that temporarily sends the synchronization signal and the synchronization signal are sent to the terminal device.
  • the synchronization signal that is temporarily sent by the group may be periodic, or may be a single synchronization signal transmission, which is not specifically limited herein.
  • the first configuration information of the temporarily inserted synchronization signal needs to be transmitted to the terminal device for the terminal device to receive and measure.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the available second reference signal is configured by using the second configuration information.
  • the first reference signal is located in the time domain between two second reference signals adjacent in the time domain configured by the second configuration information.
  • the first reference signal and the second reference signal belong to different types of reference signals, are distributed in different positions in the time domain, and the first reference signal is sent by using the first configuration information.
  • Temporary transmission is used for secondary cell activation; the second reference signal is sent through the second configuration information, and is used for specific measurement, for example, CSI-RS is used for measuring data scheduling, before sending data on the antenna port.
  • the reference signal measurement is transmitted, and, for example, the MRS is used to measure the mobility of the terminal device.
  • the second reference signal is periodically sent, and the multiple second reference signals are distributed in different time domain locations, which are not specifically limited herein.
  • the access network device does not need to consider the synchronization state of the terminal device and the secondary cell, and temporarily sends a set of synchronization signals to the terminal device for channel measurement on the premise that the available resources are available, so as to avoid the waiting time of the terminal device is too long.
  • the flexibility and activation efficiency of secondary cell activation is improved.
  • the first reference signal is an additional reference signal, such as a CSI-RS, or an MRS.
  • the first configuration information in step 302 is configuration information of the additional reference signal. Similar to the first implementation, the access network device determines that a set of additional reference signals needs to be temporarily transmitted, and the access network device needs to determine if there are available resources for transmitting the additional reference signal, if any, Determining the first configuration information; if not, the access network device cannot temporarily transmit, and the terminal device may wait to receive and measure the additional reference signal at the next moment according to the second configuration information according to the activation command.
  • the second reference signal is an additional reference signal, and the second and first reference signals are of the same type, for example, both CSI-RS.
  • the access network device determines that a set of first reference signals needs to be temporarily sent, and the access network device needs to determine whether resources are available for transmitting the first reference signal, if If yes, the first configuration information is determined; if not, the access network device cannot temporarily send the first reference signal, and the terminal device can wait for receiving and measuring the second time according to the second configuration information according to the activation command. Reference signal.
  • the access network device determines that there is a resource that can be used to temporarily send the first reference signal, that is, the additional reference signal
  • the first configuration information of the resource that temporarily sends the additional reference signal and the additional reference signal are sent To the terminal device.
  • the additional reference signal that is temporarily sent by the group may be periodic, or may be a single additional reference signal transmission, which is not specifically limited herein.
  • the first configuration information of the set of additional reference signals temporarily inserted needs to be sent to the terminal device for the terminal device to receive and measure.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the available second reference signal is configured by using the second configuration information.
  • the first reference signal is located in the time domain between two second reference signals adjacent in the time domain configured by the second configuration information.
  • the first reference signal and the second reference signal belong to the same type of additional reference signals, and are distributed in different positions in the time domain, and the first reference signal is sent by using the first configuration information.
  • the temporary transmission is used for secondary cell activation; the transmission of the second reference signal is configured by the second configuration information, for a specific measurement, for example, the CSI-RS is used for measuring data scheduling, before sending data on the antenna port.
  • the reference signal measurement is sent first.
  • the second reference signal is periodically sent, and the multiple second reference signals are distributed in different time domain locations, which are not specifically limited herein.
  • the second reference signal is a reference signal different from the type of the first reference signal.
  • the second reference signal is a synchronization signal
  • the first reference signal is a CSI-RS.
  • the access network device determines that a group of CSI-RSs needs to be temporarily sent, and the access network device needs to determine whether there are available resources for transmitting the CSI-RS. If yes, the first configuration information is determined; if not, the access network device cannot temporarily send the CSI-RS, and the terminal device may, according to the activation command, follow the second reference signal for the secondary cell activation specified by the communication system. Two configuration information, waiting to receive and measure the next available second reference signal.
  • the access network device determines that there is a resource that can be used to temporarily send the first reference signal, that is, the CSI-RS
  • the first configuration information that temporarily sends the CSI-RS resource and the CSI-RS are sent to the Said terminal equipment.
  • the CSI-RS that is temporarily sent by the group may be periodic or may be sent by a single CSI-RS, which is not specifically limited herein.
  • the first configuration information of the temporarily inserted CSI-RS needs to be sent to the terminal device for the terminal device to receive and measure.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the available second reference signal is configured by using the second configuration information.
  • the first reference signal is located in the time domain after the second reference signal in the time domain configured by the second configuration information and located in front of the available second reference signal.
  • the first reference signal and the second reference signal belong to different types of reference signals, and are distributed in different positions in the time domain.
  • the sending of the first reference signal is configured by using the first configuration information.
  • the sending is used for the secondary cell activation;
  • the sending of the second reference signal is configured by using the second configuration information, and is used for synchronization between the terminal device and the cell.
  • the second reference signal is periodically sent, and the multiple second reference signals are distributed in different time domain locations, which are not specifically limited herein.
  • the terminal device receives and measures the synchronization signal sent by the access network device, and feeds back the measurement result to the access network device.
  • the synchronization signal occupies more resources than the additional reference signal such as the CSI-RS.
  • the secondary cell corresponds to multiple beams, and the synchronization signal needs to be sent on at least one beam of the multiple beams. Block to complete synchronization or secondary cell activation.
  • the access network device determines that the synchronization signal needs to be temporarily sent for secondary cell activation, it may take a long time to acquire sufficient resources for temporarily transmitting the synchronization signal, or pass the second configuration information. It is not possible to obtain sufficient resources for temporarily transmitting the synchronization signal before the configuration of the next available second reference signal is transmitted. In this way, the secondary cell activation efficiency cannot be improved. Therefore, with the optional design, since the additional reference signals such as CSI-RS are sparsely distributed on resources and occupy less resources, the access network device can easily obtain available resources for temporarily transmitting the first reference signal, which can be quickly implemented. Secondary cell measurement and activation.
  • the first reference signal is an additional reference signal, such as one of a CSI-RS, an MRS, and the like.
  • the access network device may temporarily send a set of first reference signals that are easy to obtain the transmission resources according to the needs of the secondary cell activation, and are used for performing secondary cell activation, thereby improving the efficiency and flexibility of the secondary cell activation.
  • the terminal device and the secondary cell are required to be in a synchronized state, and before the access network device sends the additional reference signal, the synchronization state needs to be determined. If the access network device determines that the terminal device is not synchronized with the secondary cell, it needs to wait for the terminal device to synchronize with the secondary cell before sending the additional reference signal for subsequent secondary cell activation measurement.
  • the manner of the foregoing secondary cell synchronization can be referred to the implementation of the prior art.
  • the specific manner of the secondary cell activation by using the additional reference signal is similar to the manner of the synchronization signal. For details, refer to the foregoing implementation manner.
  • the method further includes the step 30A: the access network device determines whether the terminal device is in a synchronized state with the secondary cell.
  • the first reference signal is a synchronization signal; if the access network device determines that the terminal device is synchronized with the secondary cell And the first reference signal is any one of an additional reference signal and a synchronization signal, or both can be used as the first reference signal.
  • the access network device determines that a set of first reference signals needs to be temporarily sent, and according to the foregoing determination result, the access network device determines the first reference signal type that needs to be sent (synchronization Signal or additional reference signal), and then the access network device determines whether there is available resources for transmitting the first reference signal of the determined type, and if so, determining the first configuration information; if not, accessing The network device cannot temporarily send the first reference signal, and the terminal device may wait to receive and measure the next available second reference signal according to the second configuration information according to the activation command.
  • the first reference signal type that needs to be sent
  • the access network device determines whether there is available resources for transmitting the first reference signal of the determined type, and if so, determining the first configuration information; if not, accessing
  • the terminal device may wait to receive and measure the next available second reference signal according to the second configuration information according to the activation command.
  • the access network device determines that there is a resource that can be used to temporarily send the first reference signal
  • the first configuration information of the resource that temporarily sends the first reference signal and the first reference signal are sent to the terminal device.
  • the first reference signal that is temporarily sent by the group may be periodic, or may be a single reference signal transmission, which is not specifically limited herein.
  • the first configuration information of the temporarily inserted first reference signal needs to be sent to the terminal device for the terminal device to receive and measure.
  • the first reference signal is located before the second reference signal available to the terminal device in the time domain, and the second reference signal is configured by using the second configuration information.
  • the first reference signal is located in the time domain between two second reference signals adjacent in the time domain configured by the second configuration information.
  • the terminal device determines whether the synchronization signal or the additional reference signal needs to be detected according to whether the terminal device is in a synchronization state with the secondary cell, and measures the corresponding reference signal according to the received first configuration information.
  • the access network device and the terminal device determine whether the terminal device is in synchronization with the secondary cell in the same manner, and the determining manner may be a standard or protocol pre-defined, or the access network device and the terminal device are pre-defined. If the negotiation is good, or the access network device notifies the terminal device in advance, for example, the terminal device reports a valid measurement report for the secondary cell activation within a specified period of time. There is no specific limit here.
  • the access network device first determines the synchronization state of the terminal device, and determines which reference signal is used for the secondary cell activation according to the synchronization state, thereby improving the flexibility of the secondary cell activation and the activation efficiency as a whole.
  • the terminal device cannot detect the first reference signal according to the first configuration information, for example, due to channel interference or the like.
  • the terminal device receives and measures a conventionally configured reference signal for secondary cell activation according to the second configuration information in response to the activation command, and feeds back the measurement result to the access network device.
  • the measurement result may further include indication information, where the indication information is used to indicate that the terminal device does not detect the first reference signal, but performs a reference signal for secondary cell activation according to the second configuration information.
  • the measurement result is obtained, and the access network device can confirm the subsequent processing according to the indication information, for example, activate other secondary cells, and is not limited herein.
  • the first configuration information may be sent to the terminal device independently of the activation command, or may be sent to the terminal device together with the activation command, or
  • the configuration information includes a first part and a second part, and the access network device separately transmits the first part and the second part to the terminal device.
  • the step 302 is performed before the step 301, and the first configuration information is sent by the access network device to the terminal device, for example, by using the RRC configuration information.
  • Step 302 is performed first, the terminal device first receives the first configuration information, and after the step 301 is performed, the access network device sends an activation command, that is, the terminal device acquires the reference signal for the secondary cell activation before receiving the activation command.
  • Configuration information In this way, the design of the activation command can be simplified, and even if the activation command format in the prior art is changed, the terminal device can measure the first reference signal according to the first configuration information in time after receiving the activation command.
  • the sending time of the first configuration information may be static configuration or dynamically configured by the access network device.
  • the specific configuration mode is not specifically limited. Several possible implementation manners are described below.
  • the first configuration information of the first reference signal for the secondary cell activation corresponding to the secondary cell is simultaneously configured to the terminal device, where When determining that the access network device sends the first reference signal, the terminal device receives and measures the first reference signal according to the first configuration information.
  • the first configuration information may be that the access network device sends the device to the terminal device periodically or aperiodically.
  • the access network device sends the first configuration information to the terminal device within a predetermined time before sending the activation command. For example, the access network device determines that it is necessary to activate a secondary cell for the terminal device, and determines that a set of first reference signals needs to be temporarily sent, and the access network device sends an activation command within a predetermined time before determining to send the activation command.
  • the first configuration information is sent before a predetermined time.
  • the predetermined time may be pre-configured by the access network device and notified to the terminal device, or pre-defined by a protocol or a standard. Specifically, after receiving the first configuration information, the terminal device may determine that an activation command sent by the access network device is received after a predetermined time or a predetermined time, and the activation is received according to the first configuration information. After the command, the first reference signal is received and measured.
  • the access network value sends the first configuration information to the terminal device before the activation command.
  • the first configuration information may be periodic or non-periodic, or sent once, and the terminal device performs the first configuration information received before the activation command, and after receiving the activation command, Reception and measurement of a reference signal.
  • the first configuration information is not limited to be sent to the terminal device in advance. Before the activation command for the secondary cell activation is sent, the terminal device can acquire the first configuration information for measuring the first reference signal. Just fine.
  • the access network device sends the reference signal indication information, and the indication information is used to indicate the sending of the first reference signal to notify the terminal device of the access.
  • the network device is configured to send a first reference signal, and the terminal device may determine, according to the indication information, that the access network device temporarily sends a set of first reference signals, and receives and measures the first reference signal according to the first configuration information.
  • the activation command does not need to carry the reference signal indication information, and the activation command itself is used to instruct the access network device to determine to send the first reference signal, and after receiving the activation command, the terminal device receives and measures according to the first configuration information.
  • the first reference signal is configured to send a first reference signal, and the terminal device may determine, according to the indication information, that the access network device temporarily sends a set of first reference signals, and receives and measures the first reference signal according to the first configuration information.
  • the steps 301 and 302 are performed at the same time, and the access network device sends the activation command and the first configuration information to the terminal device at the same time.
  • the first configuration information is included in the activation command, or the first configuration information and the activation command are included in one transport block, and are sent to the terminal device as a whole, where the transport block can be modulated by the terminal device.
  • the configuration information and the activation command are sent to the terminal device in different control units, where the control unit may be a MAC control unit (Control Element, referred to as CE), or may be a physical downlink. Control Channel (Physical Downlink Control Channel, PDCCH for short) command.
  • CE Physical Downlink Control Channel
  • Other implementations in the prior art may also be used, and are not specifically limited herein.
  • step 302 is performed after step 301.
  • Step 301 is performed first, and the access network device sends an activation command to the terminal device, where step 302 is performed, and the access network device sends the first reference signal to the terminal device.
  • Configuration information The terminal device receives the first configuration information after receiving the activation command, and receives and measures the first reference signal according to the first configuration information.
  • the sending time of the activation command and the first configuration information is T, and the T may be a fixed duration or a non-fixed duration.
  • the first configuration information may include a first part and a second part, where the access network device sends the first part and the second part to the terminal device by using the first signaling and the second signaling, respectively.
  • the first part is sent to the terminal device by using the first signaling
  • the second part is sent to the UE by using the second signaling, where the first signaling type and the second signaling type are different.
  • the sending times of the first signaling and the second signaling may be the same or different.
  • the first signaling or the second signaling may be one of MAC signaling, RRC signaling, or physical layer signaling, and may be other types of signaling.
  • the first part is sent to the terminal device by using the first signaling
  • the second part is sent to the UE by using the second signaling.
  • the first signaling and the second signaling are of the same type, but the sending time is different.
  • the first part may be sent simultaneously with an activation command, and the second part may be sent before or after an activation command.
  • the first part may be included in the activation command, or the first part and the activation command may be included in one transport block and sent to the terminal device as a whole.
  • the first portion and the activation command are sent to the terminal device in different control units.
  • Other implementations in the prior art may also be used, and are not specifically limited herein. The explanation of the transport block and the control unit is explained in the above.
  • the first configuration information may include a reference signal transmission indication, a reference signal transmission time, a reference signal period, a reference signal time domain resource location, a reference signal frequency domain resource location, and a reference signal configuration index.
  • the reference signal transmission indication is used to indicate the transmission of the first reference signal
  • the reference signal period is used to indicate the transmission period of the reference signal (on the premise that the reference signal is periodically transmitted)
  • the reference signal configuration index is used to indicate the reference.
  • the location of the signal configuration information is used to indicate the reference.
  • the first configuration information includes at least a reference signal sending time, and the reference signal sending time is used to indicate a sending time of the access network device to send the first reference signal.
  • the terminal device can detect the first reference signal according to the reference signal transmission time.
  • the reference signal sending time may be a time difference between a time when the access network device sends the first reference signal and a time when the access network device sends the activation command.
  • the terminal device can determine the transmission time of the first reference signal based on the time when the activation command is received, and then perform corresponding measurement.
  • the reference signal transmission time is a subframe offset value of the first reference signal transmission time relative to the activation command transmission time, and if the value is 2, it indicates that the first reference signal is in the 2 subframes of the activation command transmission time. after that.
  • the reference signal sending time may also be an absolute time for the access network device to send the first reference signal, such as a subframe number or a frame number where the first reference signal is located, and the terminal device may be configured according to the sending time.
  • the reception and measurement of the reference signal are performed.
  • the reference signal transmission time is a radio frame number and/or a subframe number of the first reference signal sent by the access network device.
  • the time domain and/or the frequency domain resource location of the first reference signal sends the first reference signal to the access network device.
  • Time domain and / or frequency domain resource location The terminal device may perform measurement of the reference signal according to the transmission time and the time domain and/or the frequency domain resource location of the first reference signal. If the first configuration information does not include the time domain and/or the frequency domain resource location of the first reference signal, the terminal device may perform the reference signal reception according to the reference signal transmission time by a detection manner similar to that in the prior art, such as blind detection. There is no specific limit here.
  • the time domain resource location may be a symbol location, such as a location of an OFDM symbol, and/or the frequency domain resource location may be a location and/or a number of carriers or subcarriers.
  • the first configuration information may further include a reference signal period, so that the terminal device can acquire the transmission period of the first reference signal, based on the transmission time and transmission of the reference signal. Cycle, the measurement of the first reference signal that is periodically transmitted. Further, the first configuration information may further include a time domain and/or a frequency domain resource location of the reference signal.
  • the first configuration information may include a reference signal configuration index, where the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the reference signal configuration index is corresponding to the reference signal configuration information, that is, each reference signal configuration index corresponds to a set of reference signal configuration information.
  • the reference signal configuration index 1 corresponds to one or more of the first transmission time of the reference signal, the first time domain resource location, the first frequency domain resource location, and the first period, and the reference signal configuration index 2 and the reference signal Corresponding to one or more of the second transmission time, the second time domain resource location, the second frequency domain resource location, and the second period.
  • the corresponding relationship between the reference signal configuration index and the configuration information has been notified to the terminal device in advance, and the specific notification manner may be through public signaling or dedicated signaling, which is not specifically limited herein.
  • the reference signal configuration index By including the reference signal configuration index in the first configuration information, the signaling burden of transmitting the first configuration information can be reduced.
  • the first configuration information may only include a reference signal configuration index, and the terminal device configures an index according to the received reference signal to obtain configuration information of the first reference signal, thereby performing reception and measurement of the first reference signal.
  • the first configuration information includes at least a reference signal transmission indication, and the reference signal transmission indication is used to indicate transmission of the first reference signal.
  • the terminal device can receive and measure the first reference signal by using a detection manner similar to that in the prior art, such as blind detection, at least according to the transmission indication.
  • the first configuration information includes only the reference signal sending indication, and the terminal device detects and measures the first reference signal by means of blind detection.
  • the blind detection here can be blind detection in the prior art.
  • the terminal device may start detecting the synchronization signal according to the predefined synchronization signal sequence.
  • the terminal device measures the synchronization signal.
  • the "detecting the synchronization signal" referred to herein may be the same as the method for detecting the synchronization signal in the prior art, for example, by performing correlation processing with the received sequence according to a predefined synchronization signal sequence, according to the correlation result. The peak determination determines that the sync signal is detected.
  • the first configuration information further includes one or more of a reference signal transmission time, a reference signal period, a reference signal time domain resource location, a reference signal frequency domain resource location, and a reference signal configuration index.
  • the first configuration information includes a first part and a second part, where the first part may include a reference signal sending indication, a reference signal sending time, a reference signal period, a reference signal time domain resource location, Referring to one or more of a signal frequency domain resource location and a reference signal configuration index, the second portion may include a reference signal transmission indication, a reference signal transmission time, a reference signal period, a reference signal time domain resource location, and a reference signal frequency domain resource. One or more of the location and reference signal configuration indexes, but the content contained in the first portion and the second portion does not coincide.
  • the first part includes a reference signal transmission indication, and the access network device transmits the first part and the activation command simultaneously;
  • the second part includes a reference signal transmission time, a reference signal period, a reference signal time domain resource location, and a reference signal frequency domain resource location. And one or more of the reference signal configuration indexes, the access network device transmitting the second portion before transmitting the activation command.
  • the terminal device first acquires the second part of the first configuration information, and determines the reference signal transmission time of the reference signal, the reference signal period, the reference signal time domain resource location, the reference signal frequency domain resource location, and the reference signal configuration index. And one or more, according to the reference signal sending indication sent simultaneously with the activation command, determining that the access network device sends the first reference signal, and receiving and measuring according to the second part of the previously received first configuration information.
  • the first reference signal is a reference signal transmission indication, and the access network device transmits the first part and the activation command simultaneously;
  • the second part includes a reference signal transmission time, a reference signal period
  • the first part includes the reference signal transmission time
  • the access network device sends the first part and the activation command simultaneously
  • the second part includes the reference signal period, the reference signal time domain resource location, the reference signal frequency domain resource location, and the reference signal configuration.
  • the access network device sends the second portion before sending the activation command.
  • the terminal device first acquires the second part of the first configuration information, and determines one or more of the reference signal period, the reference signal time domain resource location, the reference signal frequency domain resource location, and the reference signal configuration index, and then according to And determining, by the access network device, the first reference signal, and receiving and measuring the first reference signal according to the second portion of the first configuration information that was previously received.
  • the NR system adopts a beamforming technology, and one cell can correspond to multiple beams.
  • the reference signal block needs to be separately sent on multiple beams corresponding to the secondary cell.
  • the second embodiment of the present invention will be further described below with reference to FIG. 4 taking the first reference signal as a synchronization signal as an example. The following description is applicable to the content related to the transmission of the first reference signal in the first embodiment of the present invention, except that the first embodiment of the present invention does not involve the temporary transmission of the reference signal, and does not need to additionally notify the first configuration information, and only relates to The transmission of the second configuration information.
  • the secondary cell to be activated may correspond to multiple beams, and the access network device needs to transmit a reference signal on at least one beam of the multiple beams to activate the secondary cell.
  • the access network device may send reference signals on all beams corresponding to the secondary cell for measurement by the terminal device, and may also determine a part of the beams to transmit the reference signal.
  • the access network device may estimate the geographical location of the terminal device according to the beam position served by the primary cell or other secondary cells in the active state. At least one of the plurality of beams corresponding to the cell is determined, and the determined location of the at least one beam is close to the estimated location of the terminal device.
  • the access network device may also select a beam to be measured by other means, which is not specifically limited herein.
  • the first reference signal is a synchronization signal
  • the synchronization signal includes at least one synchronization signal block
  • the first configuration information sent by the access network device to the terminal device includes the at least Configuration information of a sync signal block.
  • the configuration information of each synchronization signal block is used to indicate configuration information of a synchronization signal block transmitted by the access network device on the corresponding beam.
  • the access network device separately sends a corresponding synchronization signal block to the terminal device on at least one beam corresponding to the secondary cell to be activated according to the first configuration information.
  • the terminal device measures the detected at least one synchronization signal block to obtain a corresponding channel measurement result, and in step 305, the terminal device may send all the detected information to the access network device.
  • the channel measurement result of the synchronization signal block can also feed back part of the channel measurement result with good channel quality. For example, only the measurement result with the best channel quality can be fed back, so that the access network device can determine the beam position or geographical location where the terminal device is located. The approximate location. This is further explained in the explanation of step 305 below.
  • the terminal device measures the first reference signal according to the first configuration information, and specifically includes: the terminal device measures the signal quality of the first reference signal.
  • the signal quality measurement result may include a reference signal receiving power (RSRP), a reference signal strength indicator (RSSI), and a reference signal receiving quality (Reference Signal Receiving Quality, RSRQ) and one or more of Signal-to-Interference plus Noise Ratio (SINR). It may also be other information used in the prior art for measuring signal quality, which is not specifically limited herein.
  • RSRP reference signal receiving power
  • RSSI reference signal strength indicator
  • RSRQ Reference Signal Receiving Quality
  • SINR Signal-to-Interference plus Noise Ratio
  • the terminal device sends the measurement result to the access network device, including but not limited to the following transmission modes.
  • the terminal device sends the measurement result to the access network device when the reporting time is reached according to the preset reporting time.
  • the preset reporting time may be pre-configured by the access network device to the terminal device, or specified in a protocol or standard, or notified to the terminal device by other means.
  • the reporting time may be periodic or dynamically configured. There is no limit here.
  • the terminal may further send the measured first reference signal or reference signal block and the measurement result to the access network device.
  • the terminal device determines that the channel measurement result is greater than the set threshold
  • the measurement result is sent to the access network device.
  • the setting threshold may be determined according to actual needs, or may be determined according to an event in the wireless system, which is not limited herein.
  • each network element such as a terminal device, an access network device, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • FIG. 6 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • the access network device 600 includes a processor 601 and a transmitter 602.
  • the access network device further includes a memory 604 according to actual needs. among them:
  • the processor 601 is configured to determine first configuration information of the first reference signal
  • the transmitter 602 is configured to send an activation command to the terminal device, where the activation command is used to indicate that the secondary cell is activated;
  • the transmitter 602 is further configured to send, to the terminal device, first configuration information of the first reference signal that is determined by the processor;
  • the transmitter 602 is further configured to send the first reference signal to the terminal device according to the first configuration information, where the first reference signal is used to obtain a channel measurement result of the secondary cell.
  • the access network device further includes a receiver 603, where the receiver 603 is configured to receive the channel measurement result from the terminal device.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or, the first reference signal is The time domain is located between two adjacent second reference signals of the terminal device, and the two adjacent second reference signals are configured by the same second configuration information.
  • the second reference signal is periodic.
  • the first reference signal is a synchronization signal or a channel state information reference signal.
  • the reference signal is a synchronization signal; if the processor determines that the terminal device is synchronized with the secondary cell, the reference signal is Channel status information reference signal.
  • the first configuration information is included in the activation command; or the first configuration information is sent before the activation command; or the first part of the first configuration information Included in the activation command, the second portion of the first configuration information is sent prior to the activation command.
  • the method before the sending, by the transmitter, the first reference signal to the terminal device according to the configuration information, the method further includes:
  • the processor determines that the second reference signal available to the terminal device and the current time difference exceeds a first threshold, the processor determines to send the first reference signal to the terminal device, where the first The threshold is preset.
  • the first configuration information includes at least one of the following information:
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the reference signal transmission time of the first reference signal is a relative time difference between a time when the transmitter transmits the first reference signal and a time when the transmitter sends the activation command, or is the transmitter The time at which the first reference signal is transmitted.
  • the specific implementation manner of the resource scheduling process performed by the foregoing access network device 600 can be referred to the description of the secondary cell activation method provided by the foregoing embodiment of the present invention.
  • the access network device 600 in the embodiment of the present invention and the secondary cell activation method corresponding to FIG. 4 are based on the same concept, and the technical effects thereof are the same as the resource scheduling method described above.
  • the specific functions of the processor 601, the transmitter 602, the receiver 603, and the memory 604 included in the access network device in this embodiment, and any features, terms, and implementation details involved therein are in the method embodiment corresponding to FIG.
  • the functions of the access network devices correspond. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the access network device may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • the corresponding components in the foregoing embodiments may be implemented by corresponding hardware, or may be executed by corresponding hardware.
  • the foregoing receiver 604 may have the foregoing receiving function.
  • the hardware such as a transceiver that integrates the transceiving function or a receiver that only implements the receiving function, may also be a general processor or other hardware device capable of executing a corresponding computer program to perform the aforementioned functions, or may be a software module that performs the corresponding function or a functional unit, such as a receiving unit; and a processor 601 as described above, which may be hardware having functions of the processor, such as a processor of a specific function, or a general processor, or may be capable of executing a corresponding computer program to perform the foregoing
  • the other hardware device of the function may also be a software module or a functional unit that performs the corresponding function, such as a processing unit.
  • the foregoing transmitter 602 may be hardware having the foregoing transmitting function, such as an integrated transceiver function. Transceiver, or only transmit function
  • the transmitter may be capable of executing a corresponding computer program to implement the functions of a general processor or other hardware devices, may also be software modules performing the corresponding functions or functional unit, for example, the transmission unit.
  • FIG. 7 is a schematic structural diagram of another access network device according to an embodiment of the present invention.
  • the access network device includes a processing unit 701 and a transmitting unit 702.
  • the access network device further includes a storage unit 704 according to actual needs. among them:
  • the processing unit 701 is configured to determine first configuration information of the first reference signal
  • the transmitting unit 702 is configured to send an activation command to the terminal device, where the activation command is used to indicate that the secondary cell is activated;
  • the transmitting unit 702 is further configured to send, to the terminal device, first configuration information of the first reference signal determined by the processor;
  • the transmitting unit 702 is further configured to send the first reference signal to the terminal device according to the first configuration information, where the first reference signal is used to obtain a channel measurement result of the secondary cell.
  • the access network device further includes a receiving unit 703, where the receiving unit 703 is configured to receive the channel measurement result from the terminal device.
  • the specific implementation manner of the secondary cell activation method performed by the foregoing access network device 700 can be referred to the description of the secondary cell activation method provided by the embodiment of the present invention.
  • the access network device 700 of the embodiment of the present invention and the secondary cell activation method corresponding to FIG. 3 are based on the same concept, and the technical effects thereof are the same as the resource scheduling method described above.
  • the specific functions of the processing unit 701, the transmitting unit 702, the receiving unit 703, and the storage unit 704 included in the access network device in this embodiment, and any features, terms, and implementation details involved therein are in the method embodiments corresponding to FIG.
  • the function of the access network device corresponds. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium such as a DVD, or a semiconductor medium such as a Solid State Disk (SSD).
  • SSD Solid State Disk
  • FIG. 8 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • the communication device 800 can be a terminal device, or other hardware device, function module or chip that can be used to communicate with the access network device to implement the corresponding function.
  • the communication device includes a processor 801 and a receiver 802.
  • the communication device also includes a memory 804, depending on actual needs. among them:
  • the receiver 802 is configured to receive an activation command from an access network device, where the activation command is used to indicate that the secondary cell is activated;
  • the receiver 802 is further configured to receive first configuration information of the first reference signal from the access network device, and receive the first reference signal according to the first configuration information;
  • the processor 801 is configured to acquire a channel measurement result of the secondary cell according to the first reference signal.
  • the communication device further includes a transmitter 803, where the transmitter is configured to send the channel measurement result to the access network device.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or, the first reference signal is The time domain is located between two adjacent second reference signals of the terminal device, and the two adjacent second reference signals are configured by the same second configuration information.
  • the second reference signal is periodic.
  • the first reference signal is a synchronization signal or a channel state information reference signal.
  • the reference signal is a synchronization signal; if the processor determines that the terminal device is synchronized with the secondary cell, the reference signal is Channel status information reference signal.
  • the first configuration information is included in the activation command; or the first configuration information is sent before the activation command; or the first part of the first configuration information Included in the activation command, the second portion of the first configuration information is sent prior to the activation command.
  • the first configuration information includes at least one of the following information:
  • the reference signal configuration index is used to indicate the location of the reference signal configuration information.
  • the reference signal sending time of the first reference signal is a relative time difference between a time when the access network device sends the first reference signal and a time when the access network device sends the activation command, or The time at which the access network device sends the first reference signal.
  • the specific implementation manner of the secondary cell activation method performed by the foregoing communications apparatus 800 can be referred to the description of the secondary cell activation method provided by the foregoing embodiments of the present invention.
  • the communication device 800 in the embodiment of the present invention and the secondary cell activation method corresponding to FIG. 4 are based on the same concept, and the technical effects thereof are the same as the resource scheduling method described above.
  • the specific functions of the processor 801, the receiver 802, the transmitter 803, and the memory 804 included in the access network device in this embodiment, and any features, terms, and implementation details involved therein are in the method embodiment corresponding to FIG.
  • the functions of the terminal devices correspond. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the terminal device may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • the corresponding components in the foregoing embodiments may be implemented by corresponding hardware, or may be implemented by corresponding hardware.
  • the foregoing receiver 802 may have the foregoing receiving function.
  • the hardware such as a transceiver that integrates the transceiving function or a receiver that only implements the receiving function, may also be a general processor or other hardware device capable of executing a corresponding computer program to perform the aforementioned functions, or may be a software module that performs the corresponding function or A functional unit, such as a receiving unit; and a processor 801 as described above, may be a hardware having a function of executing the processor, such as a processor of a specific function, or a general processor, or may be capable of executing a corresponding computer program to complete the foregoing
  • the other hardware device of the function may also be a software module or a functional unit that performs the corresponding function, such as a processing unit.
  • the foregoing transmitter 803 may be hardware having the foregoing transmitting function, such as an integrated transceiver function. Transceiver, or only transmit function
  • the transmitter may be capable of executing a corresponding computer program to implement the functions of a general processor or other hardware devices, may also be software modules performing the corresponding functions or functional unit, for example, the transmission unit.
  • FIG. 9 is a structural diagram of another communication device 900 according to an embodiment of the present invention.
  • the communication device includes a processing unit 901 and a receiving unit 902.
  • the access network device further includes a storage unit 904 according to actual needs. among them:
  • the receiving unit 902 is configured to receive an activation command from the access network device, where the activation command is used to indicate that the secondary cell is activated;
  • the receiving unit 902 is further configured to receive first configuration information of the first reference signal from the access network device, and receive the first reference signal according to the first configuration information;
  • the processing unit 901 is configured to acquire a channel measurement result of the secondary cell according to the first reference signal.
  • the communication device further includes a transmitting unit 903, where the transmitting unit 903 is configured to send the channel measurement result to the access network device.
  • the first reference signal is located in the time domain before the second reference signal available to the terminal device, and the second reference signal is configured by using the second configuration information; or, the first reference signal is The time domain is located between two adjacent second reference signals of the terminal device, and the two adjacent second reference signals are configured by the same second configuration information.
  • the second reference signal is periodic.
  • the specific implementation manner of the secondary cell activation method performed by the foregoing communication device 900 can be referred to the description of the secondary cell activation method provided by the embodiment of the present invention.
  • the communication device 900 of the embodiment of the present invention and the secondary cell activation method corresponding to FIG. 4 are based on the same concept, and the technical effects thereof are the same as the resource scheduling method described above.
  • the specific functions of the processing unit 901, the receiving unit 902, the transmitting unit 903, and the storage unit 904 included in the communication apparatus in this embodiment, and any features, terms, and implementation details involved therein are the terminals in the method embodiment corresponding to FIG.
  • the function of the device corresponds. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the communication device when the communication device is implemented using software, may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present invention are implemented in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium such as a DVD, or a semiconductor medium such as a Solid State Disk (SSD).
  • SSD Solid State Disk
  • the foregoing access network device and the processor included in the communication device for performing the secondary cell activation method provided by the embodiment of the present invention may be a central processing unit (CPU), a general-purpose processor, and a digital signal processor. (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the steps of the method or algorithm described in connection with the embodiments of the present invention may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
  • the software instructions may be comprised of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage well known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium can be located in an ASIC. Additionally, the ASIC can be located in the terminal device.
  • the processor and the storage medium can also exist as discrete components in the terminal device.
  • an access network device or communication device can include any number of transmitters, receivers, processors, controllers, memories, communication units, and the like.
  • the embodiment of the present invention further provides a communication system, including at least one access network device and at least one communication device mentioned in the foregoing embodiments of the present invention.
  • each network element such as a communication device, a wireless access network device, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

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Abstract

本发明实施例提供了一种辅小区激活方法以及无线接入网设备、终端设备和通信系统，属于通信领域。所述方法包括：接入网设备向终端设备发送激活命令，所述激活命令用于指示激活辅小区；所述接入网设备向所述终端设备发送第一参考信号的第一配置信息；所述接入网设备根据所述第一配置信息向所述终端设备发送第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。通过本发明实施例提供的辅小区激活方法，能够提供一种灵活高效的辅小区激活机制，提高辅小区激活效率。。

Description

一种辅小区激活方法、接入网设备、通信装置以及系统
本申请要求于2017年08月11日提交中国专利局、申请号为201710687908.8、申请名称为“一种辅小区激活方法、接入网设备、通信装置以及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种实现辅小区激活方法、接入网设备、通信装置以及系统。
背景技术
目前，无线通信网络的网络部署中，应用载波聚合(Carrier Aggregation；简称：CA)技术，一个接入网设备下可以有多个不同的小区，终端设备可以同时和一个接入网设备下的多个不同的小区保持连接。CA是指在通信过程中所使用的载波不仅限于一个，而是在一个主载波和若干个辅载波上同时进行通信。具有载波聚合功能的终端设备聚合的小区分为一个主小区和若干个辅小区。辅小区使用过程中可以根据需要进行激活和去激活。例如，一段时间内接入网设备和终端设备之间没有数据传输，则接入网设备可能会去激活辅小区。去激活的辅小区不用于接入网设备和终端设备之间的数据传输。后续有数据需要传输时或者传输数据量较大时，根据需要对辅小区进行激活。激活后的辅小区重新用于接入网设备和终端设备之间的数据传输。一般情况下，一个小区可以对应一个载波集合，载波集合包含至少一个载波。
在现有技术中，当终端设备需要激活辅小区时，终端设备需要向接入网设备发送该辅小区的信道状态指示(channel status information：简称：CSI)，以实现该辅小区的激活。终端设备通常将所有小区的信道状态信息(channel status information：简称：CSI)都通过主小区的物理上行控制信道(physical uplink control channel；简称：PUCCH)上报给接入网设备。具体地，当终端设备在子帧N接收到接入网设备发送的辅小区激活命令时，终端设备会从预设时间(例如子帧N+8)开始，将被激活的辅小区的CSI携带在CSI报告中发送给接入网设备。有可能在预设时间开始的CSI报告中，终端设备尚未获得有效的CSI测量值，那么此时终端设备需要在CSI中填充特殊的测量值以便通知接入网设备终端设备尚未获得有效测量值。直到终端设备开始获得有效的CSI测量值，终端设备开始填充正常的CSI测量值。
具体的，在长期演进(Long Term Evolution，简称LTE)系统中，一个小区对应一个载波，小区激活即载波激活。终端设备响应于接入网设备的激活命令，对小区公共参考信号(Common Reference signal,简称CRS)进行测量得到CSI并上报给接入网设备，所述测量可以为无线资源管理(Radio Resource Management，简称RRM)测量。但是现有技术中，一方面由于CRS的配置信息是在协议中规定的，发送周期和位置相对固定，另一方 面，终端设备只能在与待激活小区保持同步的状态下接收并测量CRS。上述原因导致现有的基于CRS的激活方法不够灵活，激活效率不够高。并且，这种激活方法只能应用于兼容CRS的系统中，通用性较差。
发明内容
本发明提供了一种辅小区激活方法、接入网设备、通信装置以及系统，能够提供一种灵活高效的辅小区激活机制。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，提供一种辅小区激活方法，包括：
接入网设备向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
所述接入网设备向所述终端设备发送第一参考信号的第一配置信息；
所述接入网设备根据所述第一配置信息向所述终端设备发送第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
通过该方法，接入网设备可以通过向终端设备发送第一参考信号以及第一参考信号的第一配置信息，使得终端设备根据第一配置信息针对第一参考信号进行信道测量。这种方案，克服了现有技术中仅能根据固定配置的CRS进行辅小区的测量和激活，提高了辅小区激活的灵活性，进而提高了辅小区激活效率。
一种可选的设计中，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的；通过该方法，可以实现已存在通过第二配置信息配置的第二参考信号的前提下，临时发送通过第一配置信息配置的第一参考信号，供终端设备快速响应激活命令测量辅小区，又不影响当前通过第二配置信息配置的第二参考信号的发送。
一种可选的设计中，所述第二参考信号是周期性的。
一种可选的设计中，所述第一参考信号为同步信号SS，或者信道状态信息参考信号CSI-RS。
一种可选的设计中，当所述接入网设备确定所述终端设备未与所述辅小区同步的情况下，所述参考信号为同步信号；通过配置同步信号用于辅小区激活时的信道测量，可以实现终端设备即时处于失步状态下，仍然可以快速及时的进行信道测量并获取信道测量结果。当所述接入网设备确定所述终端设备与所述辅小区同步的情况下，所述参考信号为信道状态信息参考信号；由于信道状态信息参考信号在资源上分布较为稀疏，占用资源较少，通过配置信道状态信息参考信号用于辅小区激活时的信道测量，可以实现接入网设备相对容易获取用于发送第一参考信号的可用资源，进而使得终端设备可以快速进行信道测量并获取信道测量结果。
一种可选的设计中，所述激活命令包含所述第一配置信息；或者
所述接入网设备在发送所述激活命令之前发送所述第一配置信息；或者
所述激活命令包含所述第一配置信息的第一部分，所述接入网设备在发送所述激活命令之前发送所述第一配置信息的第二部分。
一种可选的设计中，所述第一配置信息包含以下信息中的至少一个：
参考信号发送指示；
参考信号发送时间；
参考信号周期；
参考信号时域资源位置；
参考信号频域资源位置；以及
参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
一种可选的设计中，所述第一参考信号的参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的相对时间差，或者为所述接入网设备发送所述第一参考信号的时间。
一种可选的设计中，所述接入网设备根据所述配置信息向所述终端设备发送第一参考信号之前，还包括：当所述终端设备可用的第二参考信号与当前的时间差超过第一阈值时，所述接入网设备确定向所述终端设备发送所述第一参考信号。通过该方法，可以避免在激活命令发送后的短时间内有可用于信道测量的第二参考信号发送到终端设备的前提下，仍然发送第一参考信号所带来的信令浪费。
其中，所述第一阈值是预先设置的
一种可选的设计中，所述接入网设备从所述终端设备接收所述信道测量结果。
该第一方面还提供一种辅小区激活方法，包括：
终端设备从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
所述终端设备从所述接入网设备接收第一参考信号的第一配置信息；
所述终端设备根据所述第一配置信息接收所述第一参考信号，并根据所述第一参考信号获取所述辅小区的信道测量结果。
通过该方法，终端设备可以通过从接入网设备接收第一参考信号以及第一参考信号的第一配置信息，使得终端设备根据第一配置信息针对第一参考信号进行信道测量。这种方案，克服了现有技术中仅能根据固定配置的CRS进行辅小区的测量和激活，提高了辅小区激活的灵活性，进而提高了辅小区激活效率。
一种可选的设计中，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者，所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
一种可选的设计中，所述第二参考信号为周期性的。
一种可选的设计中，所述第一参考信号为同步信号，或者信道状态信息参考信号。
一种可选的设计中，所述激活命令包含所述第一配置信息；或者，所述终端设备在接收所述激活命令之前接收所述第一配置信息；或者，所述激活命令包含所述第一配置信息的第一部分，所述终端设备在接收所述激活命令之前接收所述第一配置信息的第二部分。
一种可选的设计中，所述第一配置信息包含以下信息中的至少一个：
参考信号发送指示；
参考信号发送时间；
参考信号周期；
参考信号时域资源位置；
参考信号频域资源位置；以及
参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
一种可选的设计中，所述第一参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的时间差，或者为所述接入网设备发送所述第一参考信号的时间。
一种可选的设计中，所述终端设备向所述接入网设备发送所述信道测量结果。
第二方面，提供了一种接入网设备，包括：包括发射器以及处理器，其中：
所述处理器用于确定第一参考信号的第一配置信息；
所述发射器用于向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
所述发射器还用于向所述终端设备发送所述处理器确定的所述第一参考信号的第一配置信息；
所述发射器还用于根据所述第一配置信息向所述终端设备发送所述第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
一种可选的设计中，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
一种可选的设计中，若所述处理器确定所述终端设备未与所述辅小区同步，所述参考信号为同步信号；若所述处理器确定所述终端设备与所述辅小区同步，所述参考信号为信道状态信息参考信号。
一种可选的设计中，所述激活命令包含所述第一配置信息；或者所述发射器在发送所述激活命令之前发送所述第一配置信息；或者所述激活命令包含所述第一配置信息的第一部分，所述发射器在发送所述激活命令之前发送所述第一配置信息的第二部分。
一种可选的设计中，所述发射器根据所述配置信息向所述终端设备发送第一参考信号之前，还包括：
若所述处理器确定所述终端设备可用的第二参考信号与当前的时间差超过第一阈值时，所述处理器确定向所述终端设备发送所述第一参考信号，其中，所述第一阈值是预先设置的。
一种可选的设计中，所述接入网设备还包括接收器，所述接收器用于从所述终端设备接收所述信道测量结果。
该第二方面还提供一种通信装置，所述通信装置包括接收器以及处理器：
所述接收器用于从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
所述接收器还用于从所述接入网设备接收第一参考信号的第一配置信息；
所述接收器还用于根据所述第一配置信息接收所述第一参考信号；
所述处理器用于根据所述第一参考信号获取所述辅小区的信道测量结果。
一种可选的设计中，所述第一参考信号在时域上位于所述通信装置可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者
所述第一参考信号在时域上位于所述通信装置的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
一种可选的设计中，所述激活命令包含所述第一配置信息；或者所述接收器在接收所述激活命令之前接收所述第一配置信息；或者，所述激活命令包含所述第一配置信息的第一部分，所述接收器在接收所述激活命令之前接收所述第一配置信息的第二部分。
一种可选的设计中，所述通信装置还包括发射器，所述发射器用于向所述接入网设备发送所述信道测量结果。
在该第二方面所提供的接入网设备和通信装置中：
一种可选的设计，所述第二参考信号为周期性的。
一种可选的设计中，所述第一参考信号为同步信号，或者信道状态信息参考信号
一种可选的设计中，所述第一配置信息包含以下信息中的至少一个：
参考信号发送指示；
参考信号发送时间；
参考信号周期；
参考信号时域资源位置；
参考信号频域资源位置；以及
参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
其中，所述第一参考信号的参考信号发送时间为所述接入网设备(所述接入网设备的发射器)发送所述第一参考信号的时间相对于所述所述接入网设备(所述接入网设备的发射器)发送所述激活命令的时间的相对时间差，或者为所述接入网设备(所述接入网设备的发射器)发送所述第一参考信号的时间。
第三方面，本发明提供了一种系统，包括上述第二方面提供的接入网设备以及通信装置。
第四方面，本发明提供了一种通信装置，其包含处理器和存储器，所述存储器上存储有计算机程序，所述处理器执行所述计算机程序时，实现上述各方面所述的方法。
第五方面，本发明提供了一种存储有计算机程序的计算机存储介质，其上存储有计算机程序，当所述计算机程序被处理器执行时实现上述各方面所述的方法。
第六方面，本发明提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第七方面，本发明提供了一种芯片系统，该芯片系统包括处理器，用于支持接入网设备或通信装置实现上述方面中所涉及的功能，例如，例如生成或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存接入网设备或通信装置必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
本发明实施例提供了一种辅小区激活方法以及接入网设备、通信装置和通信系统，通过本发明实施例的方案，接入网设备可以通过向终端设备发送第一参考信号以及第一参考信号的第一配置信息，使得终端设备根据第一配置信息针对第一参考信号进行信道测量。这种方案，克服了现有技术中仅能根据固定配置的参考信号进行辅小区的测量和激活，提高了辅小区激活的灵活性，进而提高了辅小区激活效率。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅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为传统的LTE系统中辅小区激活方法流程图；
图2为本实施例通信系统100的结构性示意图；
图3为本实施例提供的一种辅小区激活方法流程图；
图4为NR系统中多波束场景下同步信号传输示意图；
图5为本实施例提供的一种辅小区激活方法中第一参考信号的可选配置示意图；
图6为本实施例提供的一种接入网设备结构示意图；
图7为本实施例提供的另一种接入网设备结构示意图；
图8为本实施例提供的一种通信装置的结构示意图；
图9为本实施例提供的另一种通信装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
传统的辅小区激活方法中，终端设备响应于从接入网设备接收的激活命令，测量参考信号并反馈测量结果。辅小区处于非激活状态时，终端设备在辅小区上不侦听下行控制信道、不发送上行数据以及信道状态信息等。辅小区激活后，终端设备开始相应的侦听和传输。这里需要说明的是：
辅小区激活过程中，接入网设备需要获取来自终端设备的、与当前下行信道状态有关的信息，通常称作信道状态信息(CSI)。在LTE版本8中，CSI包含信道质量信息(Channel Quality Information，简称CQI)、预编码器矩阵索引(Precoding Matrix Indication，简称PMI)和秩指示符(Rank Indication，简称RI)。在后续版本中，还包含了其它形式的CSI，例如显式信道量化、包括接收器处理的有效信道量化、噪声加干扰反馈以及接收协方差反馈。本发明实施例中，对CSI包含的具体内容不作限定。CSI报告可以是终端根据CSI的配置信息周期性上报，也可以是终端设备响应于接入网设备请求而反馈，终端设备可以根据接收到请求的位置确定需要测量的小区或者是在接入网设备在请求中包含用于标识小区的信息，以使得终端设备确定需要测量的小区。为了反馈CSI测量报告，终端设备需要对下行参考信号进行测量。
图1为传统的LTE系统中辅小区的激活方法。在LTE系统中，一个小区对应一个载波，小区激活与载波激活所涉及的技术处理相同，LTE系统中用于进行CSI测量的参考信号为公共参考信号CRS。接入网设备需要为终端设备激活辅小区时，向所述终端设备发送辅小区激活命令。终端设备响应于激活命令根据参考信号进行信道测量并反馈CSI。终端设备获取有效CSI测量值之前，需要首先根据辅小区的同步信号获得初步的同步，然后根据辅小区的参考信号获得精同步，从而进行CSI测量并生成CSI。当终端设备在子帧N收到第一辅小区激活命令时，为了统一接入网设备和终端设备的理解，终端设备在子帧N+8后开始上报该待激活的辅小区的CSI。例如，根据CSI上报周期，终端设备在子帧N+4 和子帧N+10需要上报CSI。则在子帧N+4的CSI报告中不携带第一辅小区的CSI报告，在子帧N+10携带该第一辅小区的CSI报告。但是，对于处于去激活状态的辅小区，终端设备能够获得有效CSI的时间可能根据该终端设备对该去激活辅小区跟踪状态不同而不同。例如，终端设备是否与所述辅小区保持同步状态，或者终端设备是否在一定时间内测量过所述辅小区。若终端设备与所述辅小区处于失步状态或者在一定时间内未测量过所述辅小区，则有可能在子帧N+8之后的子帧子帧N+10上首次进行CSI上报时，终端设备尚未获得有效的CSI测量值，那么终端设备需要在子帧N+10上上报的CSI中填充特殊的测量值，以便通知接入网设备所述终端设备尚未获得有效测量值。直到终端设备在同步状态下接收并测量CRS，获得有效的CSI测量值，终端设备则开始填充正常的CSI测量值。但是终端设备最迟不能晚于子帧N+24(例如，近期终端设备测量过辅小区，或者终端设备与辅小区保持同步状态)或者子帧N+34(例如，近期终端设备未测量过辅小区，或者终端设备与辅小区处于失步状态)开始上报有效的CSI。比如，如果终端设备在激活命令接收之前一段时间内曾经测量过该辅小区，则必须在子帧N+24之前上报有效的CSI；如果终端设备在激活命令接收之前一段时间内未曾测量过该辅小区，则必须在子帧N+34之前上报有效的CQI。
需要说明的是，在本发明如下实施例中，忽略接入网设备和终端设备之间的延时，以保证接入网设备和终端设备之间传输的信号或信息生效时间相同。
本发明涉及的技术可以适用于长期演进(Long Term Evolution,简称LTE)系统，或其他采用各种无线接入技术的无线通信系统，例如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的系统。尤其可以适用于使用LTE系统后续的演进系统，以及新的无线系统(New Radio，简称NR)，如第五代5G系统等。系统中包含接入网设备和终端设备，接入网设备包括至少一个小区，通过所述小区为终端设备提供服务。在应用载波聚合技术的系统中，同时为一个终端设备服务的多个成员载波分为主成员载波和辅成员载波，具有载波聚合功能的终端设备聚合的小区分为一个主小区和若干个辅小区，主成员载波对应的小区称为主小区，辅成员载波对应的小区称为辅小区。主小区(Primary Cell，简称PCell)是在无线资源控制(Radio Resource Control，简称RRC)连接建立、重建(re-establishment)或者切换时提供非接入层(Non-Access Stratum，简称NAS)移动性信息(例如跟踪区标识(Tracking Area Identity，简称TAI))。辅小区(Secondary Cell，简称SCell)可以由接入网设备激活或者去激活，激活时为接入网设备和终端设备提供数据传输。这里需要说明的是，主小区和辅小区在不同系统中功能可能存在差异，伴随技术的发展，NR系统中可能也有进一步的含义，这里不进行具体限定。
本发明所涉及到的终端设备是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
本发明所涉及到的接入网设备是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置，例如基站(Base Station，简称BS)。所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的基站的名称可能会有所不同，例如在LTE网络中，称为演进的节点B(evolved NodeB简称：eNB或者eNodeB),在第三代3G网络中，称为节点B(Node B)等等，对于后续的演进系统，可以称为gNB。需要说明的是，对于5G或NR系统，在一个NR基站下，可能存在一个或多个发送接收点(Transmission Reception Point，TRP)，所有的TRP属于同一个小区，其中，每个TRP和终端都可以使用本申请实施例所述的测量上报方法。在另一种场景下，网络设备12还可以分为控制单元(Control Unit，CU)和数据单元(Data Unit，DU)，在一个CU下，可以存在多个DU，其中，每个DU和终端都可以使用本申请实施例所述的测量上报方法。CU-DU分离场景和多TRP场景的区别在于，TRP只是一个射频单元或一个天线设备，而DU中可以实现协议栈功能，例如DU中可以实现物理层功能。
为方便描述，本申请中，以接入网设备与终端设备为例进行实施例的阐述。
请参照图2，图2为本实施例通信系统100的结构性示意图。通信系统中包含接入网设备和终端设备1和2。终端设备1和终端设备2的服务小区来自同一个接入网设备。在应用载波聚合技术的通信系统中，同时为一个终端设备服务的多个成员载波分为主成员载波和辅成员载波，具有载波聚合功能的终端设备聚合的小区分为一个主小区和若干个辅小区，主成员载波对应的小区称为主小区，辅成员载波对应的小区称为辅小区。主小区(Primary Cell，简称PCell)是在终端设备初始接入时确定的小区，终端设备在主小区建立无线资源控制连接，在主小区上进行初始呼叫建立、无线资源控制(Radio Resource Control，简称RRC)重配置、小区切换等。辅小区(Secondary Cell，简称SCell)是RRC重配置时添加的，用于提供额外的无线资源，承担数据传输功能。接入网设备根据需要，可以对辅小区进行激活或去激活。辅小区处于非激活状态时，终端设备在辅小区上不侦听下行控制信道、不发送上行数据以及信道状态信息等。辅小区激活后，终端设备开始相应的侦听和传输。图1中，终端设备1和终端设备2分别与接入网设备的多个载波相连，终端设备2的服务小区由主小区和两个辅小区(辅小区1和辅小区2)组成，终端设备1的服务小区由主小区和辅小区1组成。
当需要对辅小区进行激活时，接入网设备向终端设备发送激活命令。终端设备响应于从接入网设备接收的激活命令，对信道状态进行测量并反馈信道状态的测量结果。为了获得信道状态信息，终端设备需要对下行参考信号进行测量。也就是说，辅小区激活过程中，接入网设备需要获取来自终端设备的下行信道状态的测量结果，例如信道状态信息(CSI)。在LTE版本8中，CSI由信道质量信息(Channel Quality Information，简称CQI)、预编码器矩阵索引(Precoding Matrix Indication，简称PMI)和秩指示符(Rank Indication，简称RI)组成；还可以包含了其它形式的CSI，例如噪声加干扰反馈以及接收协方差反馈等。本发明实施例中，对CSI包含的具体内容不作限定。
下面以通信系统100为NR系统为例进行说明。本发明实施例的NR系统中使用的参考信号可以不再包括CRS。用于进行辅小区激活所需的信道状态测量的参考信号包括同步信号或者附加参考信号(Additional Reference Signal，简称ARS)。其中同步信号包括主同步信号和辅同步信号。参考信号的发送周期是可配置的。NR系统中，同步信号还可能 包含其他类型的信号。本发明实施例中，当使用同步信号进行辅小区激活的测量时，可以对同步信号包含的多种不同的信号中的一个或多个进行测量，这里不做具体限定。
同步信号是一种已知的序列，可以为Zadoff-Chu(ZC)序列等自相关性好而互相关性低的序列。终端设备根据本地序列，与来自接入网设备的同步信号进行同步相关，实现与接入网设备的同步。NR与传统通信系统不同的是，NR系统中采用波束成型(Beamforming)技术。波束成型技术可通过模拟波束和/或数字波束方式控制传播的方向，从而获得明显的增益。NR系统基于波束成型的传输方式传输控制信道。该控制信道对应的参考信号也会采用相同的波束传输。为了更灵活的进行同步，同步信号的发送周期是可以动态配置的。
在高频多波束传输场景下，一个小区对应至少一个波束(Beam)。每个小区的同步信号包含至少一个同步信号块(SS block)。在小区对应的至少一个波束上分别发送相应的同步信号块。即，多个小区的同步信号在同步信号集合周期发送，一个周期内包含若干个同步信号突发(SS burst)，每个同步信号突发对应一个小区，且每个同步信号突发包含至少一个同步信号块。在进行辅小区激活时，接入网设备需要在所述至少一个波束的部分或全部波束上发送同步信号块，终端设备对每个同步信号块进行测量，反馈针对每个同步信号块的测量结果，上报CSI给接入网设备。
除了同步信号之外，还可以基于附加参考信号进行CSI测量。附加参考信号例如可以包括信道状态信息参考信号(Channel State Information-Reference Signal，简称CSI-RS)。附加参考信号可以针对终端设备单独发送。所以附加参考信号的发送周期或发送频率也是可以配置的，以便于进行更为快速、精确的测量。
本实施例提供一种辅小区激活方法，接入网设备可以通过向终端设备发送第一参考信号以及第一参考信号的第一配置信息，使得终端设备根据第一配置信息针对第一参考信号进行信道测量，提了辅小区激活的灵活性和激活效率。
需要说明的是，激活命令可以用于指示激活一个或多个辅小区，在指示激活多个辅小区的情况下，接入网设备针对每个辅小区的激活方式相同。以下以对一个辅小区的激活流程为例进行阐述。本领域技术人员可知，在激活命令指示激活多个辅小区的情况下，针对所述多个待激活辅小区中的任一个都可以应用本发明实施例提供的辅小区激活方法。
下面对本发明实施例进一步详细说明。
参见图3，为本实施例提供的一种实现辅小区激活方法流程图，具体包括：
步骤301：接入网设备向终端设备发送激活命令，所述激活命令用于指示激活辅小区，所述终端设备接收所述激活命令；
步骤302：所述接入网设备向所述终端设备发送第一参考信号的第一配置信息，所述终端设备接收所述第一配置信息；
其中，所述第一参考信号用于所述终端设备响应于激活命令进行信道测量，并生成测量结果。
步骤303：所述接入网设备根据所述第一配置信息向所述终端设备发送所述第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果；
步骤304：终端设备根据所述第一配置信息测量所述第一参考信号，得到信道测量结果。
通过上述步骤301-304，实现接入网设备对终端设备进行辅小区激活。可选的，所述方法还包含步骤305：终端设备向接入网设备发送所述信道测量结果，所述接入网设备从所述终端设备接收所述信道测量结果。最终接入网设备收到测量结果后，接入网设备和终端设备可以通过辅小区进行数据或信息传输。
这里需要说明的是，上述步骤的编号不限定具体执行过程中的先后顺序，在不同的可选设计中，上述步骤执行先后顺序会进行适应性的调整。
通过本发明实施例的方案，接入网设备可以通过向终端设备发送第一参考信号以及第一参考信号的第一配置信息，使得终端设备根据第一配置信息针对第一参考信号进行信道测量。本方案克服了现有技术中仅能根据固定配置或固定周期的CRS进行辅小区的测量和激活，提高了辅小区激活的灵活性，进而提高了辅小区激活效率。
这里需要说明的是，上述步骤的编号不限定具体执行过程中的先后顺序，在不同的可选设计中，上述步骤执行先后顺序会进行适应性的调整。
在本实施例步骤301中，所述接入网设备可以通过主小区或者处于激活状态的辅小区，向终端设备发送激活命令。激活命令可以为物理层信令或者高层信令，例如媒体访问控制(MAC)信令或者RRC信令等。所述激活命令可以包含用于激活和/或去激活至少一个辅小区的指示，还可以包含或者以其它方式指示被激活或者去激活的辅小区的标识，例如小区无线网络临时标识(Cell Radio Network Temporary Identifier，简称C-RNTI)。具体的指示方式可以使用比特位的不同状态分别代表激活和去激活；针对激活命令的格式、类型以及指示方式，这里不做具体限定。
例如，激活和/或去激活辅小区的MAC层信令的格式可以如下：
C 7 C 6 C 5 C 4 C 3 C 2 C 1 R
该MAC信令包括指示位C1-C7以及1个预留位R，每个指示位可以是1bit。指示位C1-C7与7个辅小区对应。例如，7个辅小区按照小区标识从低到高的顺序依次与C1-C7对应。指示位C1-C7中任意一个指示位的值如果为1，则表示激活该指示位所对应的辅小区。如果指示位的值为0，则表示去激活该指示位所对应的辅小区。
可选的，接入网设备在发送激活命令之前，确定是否需要为终端设备激活辅小区，例如是否有较大的数据量需要在接入网设备和终端设备之间传输、或者主小区以及当前激活状态的辅小区不能满足传输的需求等。例如，接入网设备统计一段时间内与终端设备之间的数据传输量超过一定阈值，当前辅小区无法满足传输需要；或者，接入网还可以从终端设备接收反馈信息，所述反馈信息用于向接入网设备请求激活辅小区，例如，终端设备确定业务对载波资源需求较大，或者对网络带宽需求较高，当需求满足一定阈值时，向接入网设备发送反馈信息，所述反馈信息可以为激活请求。具体的确定方式可以参照现有技术执行，或者是其他可能需要激活辅小区的情况，这里不做具体限定。
可选的，所述接入网设备可以自行确定或者根据一规则确定需要激活的辅小区数量以及相应的辅小区。例如，根据所维护的各辅小区的负载情况，所述接入网设备确定历史负载相对较轻的一个或多个辅小区作为此次激活的辅小区；又如，所述接入网设备随机选择一个或多个处于去激活状态的辅小区；再如，接入网设备根据一规则确定需要激活的辅小 区数量以及相应的辅小区，所述规则是接入网设备预先配置的，或者与终端设备预先约定的，又或者是协议或标准规定的。其中，所述接入网设备还可以根据与终端设备之间传输的数据量大小确定需要激活的辅小区数量。这里不做具体限定。
本实施例步骤302中，所述第一参考信号可以为能够用于终端设备进行信道测量的任何参考信号。以下通过本实施例中的第一和第二实施方式分别阐述具体实现中第一参考信号可能的配置方式。
第一实施方式中，第一参考信号是指周期可配置的参考信号，并且在通信系统中默认或者规定该参考信号用于终端设备响应于辅小区激活命令进行信道测量。在这种实现方式中，终端设备响应于激活指示，根据第一参考信号的配置信息等待接收并测量下行参考信号，克服了现有技术中只能通过CRS进行辅小区测量所带来的缺陷，提高了辅小区激活的灵活性。
具体的，所述第一参考信号可以为同步信号SS或附加参考信号(Additional Reference Signal，简称ARS)。所述接入网设备可以以多种通知方式中的任一种向终端设备发送第一参考信号的第一配置信息，例如无线资源控制(Radio Resource Control，简称RRC)信令、广播信息、MAC信令、物理层信令等。所述附加参考信号具体可以为CSI-RS或者移动参考信号(Mobility Reference Signal，简称MRS)。所述第一配置信息包含以下信息中的至少一个：参考信号发送指示；参考信号发送时间；参考信号周期；参考信号时域资源位置；参考信号频域资源位置；以及参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。可选的，所述第一参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的时间差，或者为所述接入网设备发送所述第一参考信号的时间。
一种实现中，所述第一参考信号为同步信号，无论终端设备是否与待激活的辅小区处于同步状态，终端设备都可以利用该第一参考信号进行辅小区激活。具体地，若终端设备与待激活的辅小区处于未同步状态，则终端设备接收同步信号以进行同步和测量；若终端设备未与待激活的辅小区处于同步状态，则终端设备测量同步信号以获取信道测量结果。
又一种实现中，所述第一参考信号为附加参考信号。例如，CSI-RS。
需要说明的是，在该实施方式中，第一参考信号是在接入网设备发送激活命令之前，由接入网设备通过第一配置信息配置的，不会因为激活命令的发送或辅小区激活场景而发生改变。因此在该实施方式中，所述第一参考信号的配置信息可以称为第一配置信息，但是与之后的第二实施方式中所涉及的同时存在“第三配置信息”的前提下的“第一配置信息”含义存在区别。
如前所述，本实施例涉及的NR系统中，为了更灵活的进行同步，同步信号的发送周期是可以动态配置的。尽管同步信号是周期发送的，但是该周期可以较长或较短。在这种动态配置同步信号周期的场景下，在接入网设备需要为终端设备激活辅小区时，如果当前接入网设备配置的同步信号周期较长，则终端设备需要等待较长的时间才能进行测量。下面参照图4进行具体说明，图4为NR系统中多波束场景下同步信号传输示意图。在多波束传输下，辅小区可能在多个波束上与终端设备交互。接入网设备在发送同步信号时，需要在所述辅小区对应的多个波束的部分或全部上分别发送对应的同步信号块，形成一个同步信号突发。在一个同步信号周期内，如果终端设备收到待激活的辅小区的激活命令时， 对应于待激活的辅小区的同步信号突发(对应黑色波束)刚刚过去，则终端设备需要等待下一个同步信号周期中的同步信号突发(对应黑色波束)。因此，这会在辅小区激活过程中引入较大的延迟，尤其是在同步信号周期比较大的情况下。
为了解决上述问题，本实施例还提供以下第二实施方式，第二实施方式中，所述第一参考信号接入网设备为终端设备响应辅小区激活命令而临时配置或者临时发送的
第二实施方式的第一种可选设计中，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的。第二参考信号可以是与第一参考信号相同的参考信号，例如第一参考信号和第二参考信号均为同步信号。第二参考信号也可以是与第一参考信号不同的参考信号，例如第一参考信号为同步信号，第二参考信号为附加参考信号。
具体地，以第一参考信号和第二参考信号均为同步信号为例说明。当接入网设备确定当前为同步目的配置的第二参考信号的周期较长，终端设备在辅小区激活过程中需要等待较长时间才能接收到可用的第二参考信号时，则接入网设备可以向终端设备发送第一配置信息来配置周期较短的第一参考信号用于辅小区激活。在第一同步信号发送完成后，接入网设备可以发送第二配置信息配置恢复第二同步信号的原有周期配置，或者重新配置第二同步信号的周期。
第二实施方式的第二种可选设计中，所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。第二参考信号可以是与第一参考信号相同的参考信号，例如第一参考信号和第二参考信号均为同步信号。第二参考信号也可以是与第一参考信号不同的参考信号，例如第一参考信号为同步信号，第二参考信号为附加参考信号。
举例而言，接入网设备通过第二配置信息配置了具有一定周期的第二参考信号。当接入网设备确定当前为同步目的配置的第二参考信号的周期较长，终端设备在辅小区激活过程中需要等待较长时间才能接收到可用的第二参考信号时，则接入网设备可以在两个相邻的第二参考信号之间临时插入第一参考信号。这样，接入网设备无需对第二参考信号进行重新配置，只需要通过第一配置信息对第一参考信号进行配置即可。
在该第二种可选设计中，第一参考信号的配置不同于已有的同一类型的参考信号的配置，第一参考信号是为了辅小区激活而临时发送的。为了与已有同一类型的参考信号的配置相区别，这里将临时发送的第一参考信号的配置信息称为第一配置信息，将在配置第一参考信号之前已经预配置或动态配置地、与第一参考信号类型相同的参考信号称为第三参考信号，第三参考信号的配置信息称为第三配置信息。在NR系统中，可能存在部分非周期配置的参考信号，因此本发明实施例不限定第三参考信号是否是周期性或非周期性的参考信号的配置。而所述第一配置信息是用于在辅小区激活时，接入网设备确定有资源可用于临时发送所述用于辅小区激活的第一参考信号时确定的，具体可以通过高层信令或物理层信令发送给终端设备，这里不做具体限定。后续为了阐述方便，对于第一参考信号为附加参考信号的情况，以CSI-RS为例进行说明。
这里需要说明的是，第二参考信号是通信系统中规定的响应于辅小区激活命令而进行信道测量的参考信号或者功能上可以用于响应于辅小区激活命令而进行信道测量的参考信号，除此之外，第二参考信号也被配置用于其它目的的测量(例如同步信号配置为以同 步为目的)。第二参考信号的配置信息称为第二配置信息，第二配置信息接入网设备半静态或动态配置的，或者是协议或标准规定的，或者是接入网设备和终端设备协商确定的，或者是通过其它形式确定用于辅小区激活的，不会因为辅小区激活场景而发生改变。第一参考信号是临时发送用于辅小区激活时信道测量的参考信号，第一参考信号的配置信息称为第一配置信息。所述第一和第二参考信号可以为相同类型的参考信号，也可以为不同类型的参考信号。
在该第二实施方式中，在步骤302之前，可选的，所述接入网设备需要确定是否向终端设备发送第一参考信号，具体参见图5，图5为辅小区激活方法中第一参考信号的可选配置示意图。
图5中，所述接入网设备确定为终端设备激活辅小区，并在t1时刻发送激活命令，接入网设备根据第二配置信息确定，t0和t2时刻是接入网设备按照第二配置信息下发第二参考信号的相邻时刻，t0时刻在t1时刻之前，t2时刻在t1时刻之后，则终端设备需要在收到激活命令后等待第一时长t，所述t＝t2-t1，才能接收并测量相应的参考信号。若所述参考信号周期较长，或者在t0时刻刚刚过去后需要下发激活命令，则终端设备需要等待一段很长的时间才能达到t2时刻进行相应第二参考信号的测量。
在这种场景下，为了减小辅小区激活的延迟，提高辅小区激活的效率，接入网设备可以在t1和t2时刻之间的t3时刻，临时发送一组第一参考信号，以用于终端设备可以响应于激活命令，快速检测参考信号并反馈测量结果。所述临时发送的参考信号是根据第一配置信息发送的，该第一配置信息需要在所述临时发送的参考信号发送之前通知给终端设备。关于第一配置信息的内容和发送方式在下文中会详细阐述。可选的，所述接入网设备确定第一阈值，使得所述接入网设备确定在所述第一时长t大于第一阈值的情况下，临时发送一组参考信号以用于辅小区激活。可选的，所述第一阈值可以由接入网设备自行确定，或者可由标准或者协议规定，又或者可以根据终端设备与终端设备协商确定，这里不做具体限定。
具体的，在需要发送所述第一参考信号的前提下，为了发送所述第一参考信号，所述接入网设备还需要确定有可用的资源用于发送所述第一参考信号，并根据所述可用资源确定所述第一配置信息。
下面对该第二实施方式进一步举例说明。
举例一：所述第一参考信号为同步信号SS，步骤302中的第一配置信息为用于辅小区激活而临时发送的同步信号SS的配置信息。
一种可选的设计中，以第二参考信号为同步信号为例，在现有的LTE系统中，同步信号SS的周期是固定的，例如5ms；NR系统中，同步信号的周期可以是动态配置的，每个周期内的时长可能存在很大差异。为了提高辅小区激活效率，接入网设备可以临时发送SS，以用于终端设备测量所述辅小区。
结合本发明实施例以上的阐述，接入网设备确定需要临时发送一组同步信号，则所述接入网设备需要确定是否有可用的资源以用于发送所述同步信号，若有，则确定第一配置信息；若无，则接入网设备无法临时发送同步信号，终端设备可以根据激活命令，按照第二配置信息，等待接收并测量下一时刻的同步信号。
若接入网设备确定存在可用于临时发送第一参考信号，即同步信号，的资源，则将临时发送所述同步信号的资源的第一配置信息以及所述同步信号下发给所述终端设备。其中，该组临时发送的同步信号可以是周期的，也可以是单独一次同步信号的发送，这里不做具体限定。但是临时插入的同步信号的第一配置信息需要发送给终端设备，以供终端设备接收并测量。具体的，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述可用的第二参考信号是通过第二配置信息配置的。可选的，所述第一参考信号在时域上位于通过所述第二配置信息配置的、时域上相邻的两个第二参考信号之间。
在该可选的设计中，响应于辅小区激活命令，在可用于辅小区激活时信道测量的时域上的下一个第二参考信号发送之前，接入网设备可以提前通过第一配置信息配置第一参考信号，并发送给所述终端设备，使得所述终端设备无需等待经过较长时间后才会到达的上述可用的第二参考信号，快速接收所述第一参考信号以进行信道测量，并获取信道测量结果，提高了辅小区激活的效率。
在该可选的设计中，所述第一参考信号与第二参考信号属于相同类型的参考信号，在时域上分布在不同的位置，第一参考信号的发送是通过第一配置信息配置的，用于辅小区激活；第二参考信号的发送是通过第二配置信息配置的，用于终端设备的同步。可选的，所述第二参考信号是周期性发送的，多个第二参考信号分布在不同的时域位置，这里不做具体限定。
又一可选的设计中，所述第二参考信号可以为同步信号以外其他类型的参考信号，例如附加参考信号。这里以CSI-RS为例阐述。
结合本发明实施例以上的阐述，接入网设备确定需要临时发送一组同步信号，则所述接入网设备需要确定是否有可用的资源以用于发送所述同步信号，若有，则确定第一配置信息；若无，则接入网设备无法临时发送同步信号，终端设备可以根据激活命令，按照通信系统规定的用于辅小区激活的第二参考信号CSI-RS的第二配置信息，等待接收并测量下一个可用的第二参考信号。
若接入网设备确定存在可用于临时发送第一参考信号，即同步信号，的资源，则将临时发送所述同步信号的资源的第一配置信息以及所述同步信号下发给所述终端设备。其中，该组临时发送的同步信号可以是周期的，也可以是单独一次同步信号的发送，这里不做具体限定。但是临时插入的同步信号的第一配置信息需要发送给终端设备，以供终端设备接收并测量。具体的，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述可用的第二参考信号是通过第二配置信息配置的。可选的，所述第一参考信号在时域上位于通过所述第二配置信息配置的、时域上相邻的两个第二参考信号之间。
在该可选的设计中，所述第一参考信号与第二参考信号属于不同类型的参考信号，在时域上分布在不同的位置，第一参考信号的发送是通过第一配置信息配置的，临时发送用于辅小区激活；第二参考信号的发送是通过第二配置信息配置的，用于特定的测量，例如CSI-RS用于为数据调度做测量，在天线端口上发送数据之前先发送参考信号测量，又如，MRS用于为终端设备的移动性做测量。可选的，所述第二参考信号是周期性发送的，多个第二参考信号分布在不同的时域位置，这里不做具体限定。
通过该举例一，接入网设备无需考虑终端设备与辅小区的同步状态，在有可用资源的前提下，临时发送一组同步信号提供给终端设备进行信道测量，避免终端设备等待时间过长，提高了辅小区激活的灵活性和激活效率。
举例二，所述第一参考信号为附加参考信号，例如CSI-RS，或者MRS等，步骤302中的第一配置信息为所述附加参考信号的配置信息。与第一种实现方式类似，接入网设备确定需要临时发送一组附加参考信号，则所述接入网设备需要确定是否有可用的资源以用于发送所述附加参考信号，若有，则确定第一配置信息；若无，则接入网设备无法临时发送，则终端设备可以根据激活命令，按照第二配置信息，等待接收并测量下一时刻的附加参考信号。
一种可选的设计中，以第二参考信号为附加参考信号为例，所述第二和第一参考信号类型相同，例如，均为CSI-RS。结合本发明实施例以上的阐述，接入网设备确定需要临时发送一组第一参考信号，则所述接入网设备需要确定是否有可用的资源以用于发送所述第一参考信号，若有，则确定第一配置信息；若无，则接入网设备无法临时发送所述第一参考信号，终端设备可以根据激活命令，按照第二配置信息，等待接收并测量下一时刻的第二参考信号。
若接入网设备确定存在可用于临时发送第一参考信号，即所述附加参考信号，的资源，则将临时发送所述附加参考信号的资源的第一配置信息以及所述附加参考信号下发给所述终端设备。其中，该组临时发送的附加参考信号可以是周期的，也可以是单独一次附加参考信号的发送，这里不做具体限定。但是临时插入的该组附加参考信号的第一配置信息需要发送给终端设备，以供终端设备接收并测量。具体的，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述可用的第二参考信号是通过第二配置信息配置的。可选的，可选的，所述第一参考信号在时域上位于通过所述第二配置信息配置的、时域上相邻的两个第二参考信号之间。
在该可选的设计中，所述第一参考信号与第二参考信号属于相同类型的附加参考信号，在时域上分布在不同的位置，第一参考信号的发送是通过第一配置信息配置的，临时发送用于辅小区激活；第二参考信号的发送是通过第二配置信息配置的，用于特定的测量，例如CSI-RS用于为数据调度做测量，在天线端口上发送数据之前先发送参考信号测量。可选的，所述第二参考信号是周期性发送的，多个第二参考信号分布在不同的时域位置，这里不做具体限定。
又一可选的设计中，所述第二参考信号为不同于所述第一参考信号的类型的参考信号。例如，第二参考信号为同步信号，第一参考信号为CSI-RS。
结合本实施例以上的阐述，为了辅小区激活，接入网设备确定需要临时发送一组CSI-RS，则所述接入网设备需要确定是否有可用的资源以用于发送所述CSI-RS，若有，则确定第一配置信息；若无，则接入网设备无法临时发送CSI-RS，终端设备可以根据激活命令，按照通信系统规定的用于辅小区激活的第二参考信号的第二配置信息，等待接收并测量下一个可用的第二参考信号。
若接入网设备确定存在可用于临时发送第一参考信号，即CSI-RS，的资源，则将临时发送所述CSI-RS的资源的第一配置信息以及所述CSI-RS下发给所述终端设备。其中，该组临时发送的CSI-RS可以是周期的，也可以是单独一次CSI-RS的发送，这里不做具体 限定。但是临时插入的CSI-RS的第一配置信息需要发送给终端设备，以供终端设备接收并测量。具体的，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述可用的第二参考信号是通过第二配置信息配置的。可选的，所述第一参考信号在时域上位于通过所述第二配置信息配置的、时域上位于所述可用的第二参考信号的前一个的第二参考信号之后。
在该举例二中，所述第一参考信号与第二参考信号属于不同类型的参考信号，在时域上分布在不同的位置，第一参考信号的发送是通过第一配置信息配置的，临时发送用于辅小区激活；第二参考信号的发送是通过第二配置信息配置的，用于终端设备与小区之间的同步。可选的，所述第二参考信号是周期性发送的，多个第二参考信号分布在不同的时域位置，这里不做具体限定。
这里需要说明的是，在通信系统中默认或规定使用同步信号进行辅小区激活的情况下，终端设备接收并测量接入网设备发送的同步信号，向所述接入网设备反馈测量结果。基于上文的阐述，同步信号相对于CSI-RS等附加参考信号来说，占用的资源较多，尤其在辅小区对应多个波束，需要在所述多个波束的至少一个波束上发送同步信号块以完成同步或辅小区激活的情况下。为了提高辅小区激活效率，接入网设备确定需要临时发送同步信号进行辅小区激活时，可能在很长的时间后才能获取足够用于临时发送同步信号的资源，或者，在通过第二配置信息配置的下一个可用的第二参考信号发送之前无法获取足够用于临时发送同步信号的资源。这样，辅小区激活效率无法得到提高。因此，通过该可选的设计，由于CSI-RS等附加参考信号在资源上分布较为稀疏，占用资源较少，接入网设备容易获取用于临时发送第一参考信号的可用资源，可以快速实现辅小区测量和激活。
因此，在该举例二中，第一参考信号为附加参考信号，例如CSI-RS、MRS等其中的一个。接入网设备可以根据辅小区激活的需要，临时发送一组易于获取发送资源的第一参考信号，用于进行辅小区激活，进而提高辅小区激活的效率和灵活性。
这里需要说明的是，在附加参考信号用于辅小区测量和激活的场景下，需要终端设备与辅小区处于同步状态，则在接入网设备发送附加参考信号之前，需要进行同步状态的确定，若接入网设备确定终端设备未与辅小区同步，则需要等待终端设备与辅小区同步之后，才能发送附加参考信号进行后续辅小区激活的测量。上述辅小区同步的方式可以参照现有技术的实现，通过附加参考信号进行辅小区激活的具体方式与通过同步信号的方式类似，具体可以参考上述实现方式的阐述。
举例三、所述步骤302之前，还包含步骤30A：所述接入网设备确定所述终端设备是否与所述辅小区处于同步状态。
若所述接入网设备确定所述终端设备未与所述辅小区未同步，则所述第一参考信号为同步信号；若所述接入网设备确定所述终端设备与所述辅小区同步，则所述第一参考信号为附加参考信号和同步信号中的任一种，或者两者均可以作为第一参考信号。
结合以上本实施例第二实施方式中的阐述，接入网设备确定需要临时发送一组第一参考信号，根据上述确定结果，所述接入网设备确定需要发送的第一参考信号类型(同步信号或者附加参考信号)，然后所述接入网设备确定是否有可用的资源以用于发送所述确定类型的第一参考信号，若有，则确定第一配置信息；若无，则接入网设备无法临时发送第 一参考信号，则终端设备可以根据激活命令，按照第二配置信息，等待接收并测量下一可用的第二参考信号。
若接入网设备确定存在可用于临时发送第一参考信号的资源，则将临时发送所述第一参考信号的资源的第一配置信息以及所述第一参考信号下发给所述终端设备。其中，该组临时发送的第一参考信号可以是周期的，也可以是单独一次参考信号的发送，这里不做具体限定。但是临时插入的该组第一参考信号的第一配置信息需要发送给终端设备，以供终端设备接收并测量。具体的，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的。可选的，所述第一参考信号在时域上位于通过所述第二配置信息配置的、时域上相邻的两个第二参考信号之间。
可选的，在步骤305中，终端设备根据自身是否与辅小区处于同步状态，确定需要检测的为同步信号还是附加参考信号，并根据接收的第一配置信息测量相应的参考信号。这里需要说明的是，接入网设备与终端设备采用相同的方式确定终端设备是否与辅小区处于同步状态，这种确定方式可以是标准或协议预先规定的，或者接入网设备和终端设备预先协商好的，又或者是接入网设备预先通知给终端设备的，例如：在一段指定时间内，终端设备为辅小区激活上报过一次有效的测量报告。这里不做具体限定。
通过该举例三的阐述，接入网设备首先确定终端设备的同步状态，根据同步状态确定采用哪种参考信号进行辅小区激活，整体上提高了辅小区激活的灵活性以及激活效率。
需要说明的是，在该第二实施方式中，存在终端设备根据第一配置信息无法检测到第一参考信号的场景，例如，由于信道干扰等。在这种情况下，终端设备响应于激活命令，根据第二配置信息接收并测量常规配置的用于辅小区激活的参考信号，并将测量结果反馈给接入网设备。可选的，在测量结果中还可以包含指示信息，所述指示信息用于指示终端设备并未检测到上述第一参考信号，而是根据第二配置信息进行用于辅小区激活的参考信号的测量并得到测量结果，接入网设备可以根据所述指示信息确认后续的处理，例如激活其他辅小区等，这里不做限定。
进一步地，本实施例的第二实施方式中，上述步骤302中，第一配置信息可以是独立于激活命令发送给终端设备的，也可以与激活命令一起发送给终端设备，又或者，第一配置信息包含第一部分和第二部分，接入网设备分别将所述第一部分和第二部分发送给终端设备。
第一种实现方式中，步骤302在步骤301之前执行，第一配置信息由接入网设备发送给终端设备，例如通过RRC配置信息发送给所述终端设备。步骤302执行在先，终端设备先接收到第一配置信息，步骤301执行在后，接入网设备发送激活命令，即终端设备在收到激活命令之前已经获取用于辅小区激活的参考信号的配置信息。这样可以简化激活命令的设计，甚至无需对现有技术中的激活命令格式进行改变，实现终端设备在收到激活命令后，及时根据第一配置信息测量第一参考信号。
在该实现方式中，所述第一配置信息的发送时间可以是接入网设备静态配置或者动态配置的。具体的配置方式不做具体限定，下面对几种可能的实现方式进行阐述。
第一种可选的设计，接入网设备为终端设备配置辅小区时，将对应于所述辅小区的用于辅小区激活的第一参考信号的第一配置信息同时配置给终端设备，所述终端设备在确定 接入网设备发送第一参考信号时，根据第一配置信息接收并测量第一参考信号。可选的，所述第一配置信息可以是接入网设备周期性的或非周期性发送给终端设备的。
第二种可选的设计，接入网设备在发送激活命令之前预定时间内将第一配置信息发送给终端设备。例如，接入网设备确定需要为终端设备激活一辅小区，并确定需要临时发送一组第一参考信号，则所述接入网设备在确定发送激活命令之前的一预定时间内或者发送激活命令的一预定时间之前发送所述第一配置信息。
可选的，所述预定时间可以由接入网设备预先配置好，并通知给终端设备，或者是协议或标准预先规定的。具体的，终端设备在收到第一配置信息之后，可以确定在预定时间内或预定时间后收到接入网设备发送的激活命令，并根据所述第一配置信息，在接收到所述激活命令之后，接收并测量第一参考信号。
第三种可选的设计，接入网值在激活命令之前将第一配置信息发送给终端设备。所述第一配置信息可以为周期性或非周期性的，又或者是一次发送的，终端设备以激活命令之前收到的最近一次的第一配置信息为依据，在收到激活命令之后进行第一参考信号的接收和测量。这种实现方式中，并不限定第一配置信息提前多久发送给终端设备，在用于辅小区激活的激活命令发送之前，终端设备能够获取所述第一配置信息以用于测量第一参考信号即可。
在该实现方式中，可选的，接入网设备在发送激活命令的同时，还发送参考信号指示信息，所述指示信息用于指示第一参考信号的发送，以通知终端设备所述接入网设备将要下发第一参考信号，终端设备可以根据所述指示信息，确定接入网设备临时发送一组第一参考信号，并根据第一配置信息接收并测量所述第一参考信号。又一可选的，所述激活命令无需携带参考信号指示信息，激活命令本身用于指示接入网设备确定发送第一参考信号，终端设备收到激活命令后，根据第一配置信息接收并测量所述第一参考信号。
第二种实现方式中，步骤301和302同时执行，接入网设备将激活命令和第一配置信息同时发送给终端设备。这里的同时是指，第一配置信息包含在激活命令中，或者第一配置信息和激活命令包含在一个传输块中，作为一个整体下发给终端设备，这里的传输块可以是终端设备进行调制解调的最小单元。或者，在同一时间，所述配置信息和所述激活命令在不同的控制单元中发送给所述终端设备，这里的控制单元可以是MAC控制单元(Control Element，简称CE)，还可以是物理下行控制信道(Physical Downlink Control Channel，简称PDCCH)命令。也可以是现有技术中的其它实现，这里不做具体限定。
第三种实现方式中，步骤302在步骤301之后执行，步骤301在先执行，接入网设备向终端设备发送激活命令，步骤302在后执行，接入网设备向终端设备发送第一参考信号的配置信息。终端设备在接收到激活命令之后接收第一配置信息，并根据所述第一配置信息接收并测量所述第一参考信号。后续具体的处理方式参见之前的阐述，这里不再赘述。
可选的，所述激活命令和第一配置信息的发送时间相隔时间为T，所述T可以为固定时长，或者非固定时长。
第四种实现方式中，所述第一配置信息可以包含第一部分和第二部分，所述接入网设备分别将第一部分和第二部分通过第一信令和第二信令发送给终端设备。
例如，第一部分通过第一信令发送给终端设备，第二部分通过第二信令发送给UE，所述第一信令类型和第二信令类型不同。可选的，所述第一信令和第二信令的发送时间可 以相同或不同。另外，可选的，所述第一信令或第二信令可以为MAC信令、RRC信令或者物理层信令中的一种，还可以为其他类型的信令。
又如，第一部分通过第一信令发送给终端设备，第二部分通过第二信令发送给UE，所述第一信令和第二信令的类型相同，但是发送时间不同。具体的，所述第一部分可以与激活命令同时发送，第二部分可以在激活命令之前或之后发送。这里的同时，可以是第一部分包含在激活命令中，或者第一部分和激活命令包含在一个传输块中，作为一个整体下发给终端设备。或者，在同一时间，所述第一部分和所述激活命令在不同的控制单元中发送给所述终端设备。也可以是现有技术中的其它实现，这里不做具体限定。其中，传输块和控制单元的解释参见上文中的阐述。
进一步的，本实施例第二实施方式中，第一配置信息可以包含参考信号发送指示、参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引的一个或多个。其中，参考信号发送指示用于指示第一参考信号的发送，参考信号周期用于指示参考信号的发送周期(在参考信号为周期性发送的前提下)，所述参考信号配置索引用于指示参考信号配置信息的位置。
一种可选的设计中，所述第一配置信息至少包含参考信号发送时间，所述参考信号发送时间用于指示接入网设备发送第一参考信号的发送时间。通过该设计，使得终端设备可以根据参考信号发送时间检测所述第一参考信号。
可选的，所述参考信号发送时间可以为接入网设备发送所述第一参考信号的时间相对于接入网设备发送所述激活命令的时间的时间差。这样，终端设备基于接收激活命令的时间可以确定第一参考信号的发送时间，进而进行相应的测量。例如，所述参考信号发送时间为所述第一参考信号发送时间相对于激活命令发送时间的子帧偏置值，若值为2，则表示第一参考信号在激活命令发送时间的2个子帧之后。
可选的，所述参考信号发送时间还可以为接入网设备发送第一参考信号的绝对时间，比如第一参考信号所在的子帧号或者帧号，所述终端设备可以根据所述发送时间进行参考信号的接收和测量。这里不做具体限定。例如，所述参考信号发送时间为所述接入网设备发送第一参考信号的无线帧帧号和/或子帧帧号。
例如，若第一配置信息还包括第一参考信号的时域和/或频域资源位置，所述第一参考信号的时域和/或频域资源位置为接入网设备发送第一参考信号的时域和/或频域资源位置。终端设备可以根据发送时间和所述第一参考信号的时域和/或频域资源位置进行参考信号的测量。若第一配置信息不包括第一参考信号的时域和/或频域资源位置，终端设备可以通过与现有技术中类似的检测方式，例如盲检，根据参考信号发送时间进行参考信号的接收，这里不做具体限定。
可选的，所述时域资源位置可以为符号位置，例如OFDM符号的位置，和/或，所述频域资源位置可以为载波或子载波的位置和/或个数。
又如，在第一参考信号是周期性的参考信号的前提下，第一配置信息还可以包含参考信号周期，使得终端设备可以获取第一参考信号的发送周期，基于参考信号的发送时间和发送周期，进行周期性发送的第一参考信号的测量。进一步的，所述第一配置信息还可以包含参考信号的时域和/或频域资源位置。
再如，在第一参考信号是附加参考信号，例如CSI-RS，的前提下，第一配置信息可以包含参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。其中参考信号配置索引与参考信号配置信息是对应的，即每个参考信号配置索引对应一组参考信号配置信息。例如参考信号配置索引1与参考信号的第一发送时间、第一时域资源位置、第一频域资源位置和第一周期中的一个或多个相对应，参考信号配置索引2与参考信号的第二发送时间、第二时域资源位置、第二频域资源位置和第二周期中的一个或多个相对应。而参考信号配置索引与配置信息的对应关系已经预先通知终端设备，具体通知方式可以通过公共信令或者专用信令，这里不做具体限定。通过在第一配置信息中包含参考信号配置索引，可以降低发送第一配置信息的信令负担。这里需要说明的是，第一配置信息可以仅包含参考信号配置索引，终端设备根据接收到的参考信号配置索引，获取第一参考信号的配置信息，进而进行第一参考信号的接收和测量。
又一种可选的设计中，所述第一配置信息至少包含参考信号发送指示，所述参考信号发送指示用于指示第一参考信号的发送。通过该设计，终端设备可以至少根据所述发送指示，通过与现有技术中类似的检测方式，例如盲检测，接收并测量第一参考信号。
可选的，第一配置信息仅包含参考信号发送指示，则终端设备通过盲检测的方式检测并测量第一参考信号。这里的盲检测可以为现有技术中的盲检测。以第一参考信号为同步信号为例，终端设备可以根据预定义的同步信号序列，开始检测同步信号，当确定检测到所述同步信号时，则终端设备测量所述同步信号。这里所涉及的“检测到所述同步信号”，可以与现有技术中检测同步信号的方式相同，例如，可以通过根据预定义的同步信号序列与接收到的序列进行相关处理，根据相关结果的峰值确定检测到同步信号。
可选的，第一配置信息还包含参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引的一个或多个。
再一种可选的设计中，所述第一配置信息包含第一部分和第二部分，所述第一部分可以包含参考信号发送指示、参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引的一个或多个，所述第二部分可以包含参考信号发送指示、参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引的一个或多个，但是第一部分和第二部分包含的内容不重合。
例如，第一部分包含参考信号发送指示，接入网设备将该第一部分与激活命令同时发送；第二部分包含参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引中的一个或多个，接入网设备在发送激活命令之前发送该第二部分。通过这种设计，终端设备先获取第一配置信息的第二部分，确定参考信号的参考信号发送时间、参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引中的一个或多个，再根据与激活命令同时发送的参考信号发送指示，确定接入网设备发送第一参考信号，并根据之前接收到的所述第一配置信息的第二部分，接收并测量所述第一参考信号。
又如，第一部分包含参考信号发送时间，接入网设备将该第一部分与激活命令同时发送；第二部分包含参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引中的一个或多个，接入网设备在发送激活命令之前发送该第二部分。通过 这种设计，终端设备先获取第一配置信息的第二部分，确定参考信号周期、参考信号时域资源位置、参考信号频域资源位置以及参考信号配置索引中的一个或多个，再根据与激活命令同时发送的参考信号发送时间，确定接入网设备发送第一参考信号，并根据之前接收到的所述第一配置信息的第二部分，接收并测量所述第一参考信号。
进一步的，NR系统中采用了波束赋型技术，一个小区可以对应多个波束，当接入网设备需要激活辅小区时，需要在辅小区对应的多个波束上分别发送参考信号块。下面参照图4以第一参考信号为同步信号为例进一步对本发明第二实施方式进行阐述。下面的阐述对于本发明第一实施方式中涉及第一参考信号的发送的内容同样适用，区别在于本发明第一实施方式不涉及参考信号的临时发送，无需额外通知第一配置信息，仅涉及第二配置信息的发送。
待激活的辅小区可以对应多个波束，接入网设备需要在所述多个波束的至少一个波束上发送参考信号，以激活所述辅小区。这里需要说明的是，接入网设备可以在辅小区对应的所有波束上发送参考信号供终端设备测量，也可以确定其中一部分波束来发送参考信号。关于发送参考信号的波束的确定，可选的，接入网设备可以根据主小区或者其他处于激活状态的辅小区中为所述终端设备服务的波束位置估算终端设备大概所在的地理位置，从辅小区对应的多个波束中确定至少一个波束，所述确定的至少一个波束的位置接近所述估算得到的终端设备的位置。接入网设备也可以通过其它方式选择待测量的波束，这里不做具体限定。
一种可选的设计中，步骤302中，第一参考信号为同步信号，同步信号包含至少一个同步信号块，所述接入网设备向所述终端设备发送的第一配置信息包含所述至少一个同步信号块的配置信息。每个同步信号块的配置信息用于指示接入网设备在相应波束上发送的同步信号块的配置信息。
进一步地，步骤303中，所述接入网设备根据所述第一配置信息，向终端设备在待激活的辅小区所对应的至少一个波束上分别发送相应的同步信号块。相应地，在步骤304中，终端设备对检测到的至少一个同步信号块测量以得到相应的信道测量结果，在步骤305中，所述终端设备可以向接入网设备发送针对所检测到的所有同步信号块的信道测量结果，也可以反馈信道质量好的部分信道测量结果，例如，可以仅反馈信道质量最好的测量结果，以使得接入网设备能够确定终端设备所在的波束位置或者地理上的大概方位。下文中对步骤305的阐述中进一步解释说明。
进一步可选的，本发明的第一和第二实施方式中，步骤304中，终端设备根据第一配置信息测量第一参考信号，具体包括：终端设备对第一参考信号的信号质量进行测量。
可选的，所述信号质量测量结果可以包括参考信号接收功率(Reference Signal Receiving Power，简称RSRP)、参考信号强度指示(Reference Signal Strength Indicator,简称RSSI)、参考信号接收质量(Reference Signal Receiving Quality，简称RSRQ)以及信号干扰噪声比(Signal-to-Interference plus Noise Ratio，简称SINR)的一种或者多种。还可以是现有技术中其它用于衡量信号质量的信息，这里不做具体限定。
进一步可选的，本实施例的第一和第二实施方式中，步骤305中，终端设备向接入网设备发送所述测量结果，包括但不限于以下几种发送方式。
第一种实现方式中，终端设备根据预设的上报时间，在达到上报时间时，向接入网设备发送所述测量结果。其中，所述预设的上报时间可以是接入网设备预先配置给终端设备的，或者是协议或标准中规定的，或者其他方式通知终端设备的。另外，所述上报时间可以是周期性的，也可以是动态配置的。这里不做限定。可选地，终端还可以将测量到的第一参考信号或参考信号块，以及测量结果一并发送给所述接入网设备。
第二种实现方式中，终端设备确定信道测量结果大于设定门限值时，将所述测量结果发送给所述接入网设备。其中，所述设定门限可以根据实际需要确定，也可以根据无线系统中的事件确定，这里不做限定。
另外，上述两种实现方式可以组合使用。
上述主要从各个网元之间交互的角度对本发明实施例提供的方案进行了介绍。可以理解的是，各个网元，例如终端设备,接入网设备等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
图6为本实施例提供的一种接入网设备结构示意图，接入网设备600包括处理器601以及发射器602。根据实际需要，所述接入网设备还包括存储器604。其中：
所述处理器601用于确定第一参考信号的第一配置信息；
所述发射器602用于向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
所述发射器602还用于向所述终端设备发送所述处理器确定的所述第一参考信号的第一配置信息；
所述发射器602还用于根据所述第一配置信息向所述终端设备发送所述第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
可选的，所述接入网设备还包括接收器603，所述接收器603用于从所述终端设备接收所述信道测量结果。
具体地，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者，所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。可选的，所述第二参考信号是周期性的。
一种可选的设计中，所述第一参考信号为同步信号或者信道状态信息参考信号。例如，若所述处理器确定所述终端设备未与所述辅小区同步，所述参考信号为同步信号；若所述处理器确定所述终端设备与所述辅小区同步，所述参考信号为信道状态信息参考信号。
一种可选的设计中，所述第一配置信息包含在所述激活命令中；或者，所述第一配置信息在所述激活命令之前被发送；或者，所述第一配置信息的第一部分包括在所述激活命令中，所述第一配置信息的第二部分在所述激活命令之前被发送。
一种可选的设计中，所述发射器根据所述配置信息向所述终端设备发送第一参考信号之前，还包括：
若所述处理器确定所述终端设备可用的第二参考信号与当前的时间差超过第一阈值时，所述处理器确定向所述终端设备发送所述第一参考信号，其中，所述第一阈值是预先设置的。
进一步地，所述第一配置信息包含以下信息中的至少一个：
参考信号发送指示；
参考信号发送时间；
参考信号周期；
参考信号时域资源位置；
参考信号频域资源位置；以及
参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
其中，所述第一参考信号的参考信号发送时间为所述发射器发送所述第一参考信号的时间相对于所述发射器发送所述激活命令的时间的相对时间差，或者为所述发射器发送所述第一参考信号的时间。
需要说明的是，上述接入网设备600进行的资源调度处理的具体实施方式可参见本发明前述实施例所提供的辅小区激活方法的描述。本发明实施例中的接入网设备600与图4对应的辅小区激活方法基于同一构思，其带来的技术效果与上述资源调度方法相同。本实施例中接入网设备所包含的处理器601、发射器602、接收器603以及存储器604的具体功能以及其中所涉及的任何特征、术语和实现细节与图3对应的方法实施例中的接入网设备的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述，此处不再赘述。
需要说明的是，在上述实施例中，接入网设备可以全部或部分地通过软件、硬件、固件或者其任一组合来实现。
一种可选的方式，上述实施例中的相应的部件可以是由相应的硬件实现，也可以由相应的硬件执行相应的软件完成，例如，前述的接收器604，可以是具有执行前述接收功能的硬件，例如集成收发功能的收发器或者仅实现接收功能的接收器，也可以是能够执行相应计算机程序从而完成前述功能的一般处理器或者其他硬件设备，还可以是执行相应功能的软件模块或者功能单元，例如接收单元；又如前述的处理器601，可以是具有执行所述处理器功能的硬件，例如特定功能的处理器，或者一般处理器，也可以是能够执行相应计算机程序从而完成前述功能的其他硬件设备，还可以是还可以是执行相应功能的软件模块或者功能单元，例如处理单元；再如，前述的发射器602，可以是具有执行前述发送功能的硬件，例如集成收发功能的收发器，或者仅实现发射功能的发射器，也可以是能够执行相应计算机程序从而完成前述功能的一般处理器或者其他硬件设备，还可以是执行相应功能的软件模块或者功能单元，例如发射单元。
图7为本发明实施例提供的另一种接入网设备的结构示意图，所述接入网设备包括处理单元701以及发射单元702。根据实际需要，所述接入网设备还包括存储单元704。其中：
所述处理单元701用于确定第一参考信号的第一配置信息；
所述发射单元702用于向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
所述发射单元702还用于向所述终端设备发送所述处理器确定的所述第一参考信号的第一配置信息；
所述发射单元702还用于根据所述第一配置信息向所述终端设备发送所述第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
可选的，所述接入网设备还包括接收单元703，所述接收单元703用于从所述终端设备接收所述信道测量结果。
需要说明的是，上述接入网设备700执行的辅小区激活方法的具体实施方式可参见本发明实施例提供的辅小区激活方法的描述。本发明实施例的接入网设备700与图3对应的辅小区激活方法基于同一构思，其带来的技术效果与上述资源调度方法相同。本实施例中接入网设备所包含的处理单元701、发射单元702、接收单元703以及存储单元704的具体功能以及其中所涉及的任何特征、术语和实现细节与图3对应的方法实施例中的接入网设备的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述，此处不再赘述。
又一种可选的方式，当使用软件实现接入网设备时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地实现本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如软盘、硬盘、磁带)、光介质(例如DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
图8为本实施例提供的一种通信装置的结构示意图。该通信装置800可以是终端设备，或者其他可以用于与接入网设备通信的实现相应功能的硬件设备、功能模块或者芯片等。所述通信装置包括处理器801以及接收器802。根据实际需要，所述通信装置还包括存储器804。其中：
所述接收器802用于从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
所述接收器802还用于从所述接入网设备接收第一参考信号的第一配置信息，并根据所述第一配置信息接收所述第一参考信号；
所述处理器801用于根据所述第一参考信号获取所述辅小区的信道测量结果。
可选的，所述通信装置还包括发射器803，所述发射器用于向所述接入网设备发送所述信道测量结果。
具体地，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者，所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。可选的，所述第二参考信号是周期性的。
一种可选的设计中，所述第一参考信号为同步信号或者信道状态信息参考信号。例如，若所述处理器确定所述终端设备未与所述辅小区同步，所述参考信号为同步信号；若所述处理器确定所述终端设备与所述辅小区同步，所述参考信号为信道状态信息参考信号。
一种可选的设计中，所述第一配置信息包含在所述激活命令中；或者，所述第一配置信息在所述激活命令之前被发送；或者，所述第一配置信息的第一部分包括在所述激活命令中，所述第一配置信息的第二部分在所述激活命令之前被发送。
进一步地，所述第一配置信息包含以下信息中的至少一个：
参考信号发送指示；
参考信号发送时间；
参考信号周期；
参考信号时域资源位置；
参考信号频域资源位置；以及
参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
其中，所述第一参考信号的参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的相对时间差，或者为所述接入网设备发送所述第一参考信号的时间。
需要说明的是，上述通信装置800执行的辅小区激活方法的具体实施方式可参见本发明前述实施例所提供的辅小区激活方法的描述。本发明实施例中的通信装置800与图4对应的辅小区激活方法基于同一构思，其带来的技术效果与上述资源调度方法相同。本实施例中接入网设备所包含的处理器801、接收器802、发射器803以及存储器804的具体功能以及其中所涉及的任何特征、术语和实现细节与图3对应的方法实施例中的终端设备的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述，此处不再赘述。
需要说明的是，在上述实施例中，终端设备可以全部或部分地通过软件、硬件、固件或者其任一组合来实现。
一种可选的方式，上述实施例中的相应的部件可以是由相应的硬件实现，也可以由相应的硬件执行相应的软件完成，例如，前述的接收器802，可以是具有执行前述接收功能的硬件，例如集成收发功能的收发器或者仅实现接收功能的接收器，也可以是能够执行相应计算机程序从而完成前述功能的一般处理器或者其他硬件设备，还可以是执行相应功能的软件模块或者功能单元，例如接收单元；又如前述的处理器801，可以是具有执行所述处理器功能的硬件，例如特定功能的处理器，或者一般处理器，也可以是能够执行相应计算机程序从而完成前述功能的其他硬件设备，还可以是还可以是执行相应功能的软件模块或者功能单元，例如处理单元；再如，前述的发射器803，可以是具有执行前述发送功能的硬件，例如集成收发功能的收发器，或者仅实现发射功能的发射器，也可以是能够执行相应计算机程序从而完成前述功能的一般处理器或者其他硬件设备，还可以是执行相应功能的软件模块或者功能单元，例如发射单元。
图9为本发明实施例提供的另一种通信装置900的结构图，所述通信装置包括处理单元901以及接收单元902。根据实际需要，所述接入网设备还包括存储单元904。其中：
所述接收单元902用于从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
所述接收单元902还用于从所述接入网设备接收第一参考信号的第一配置信息，并根据所述第一配置信息接收所述第一参考信号；
所述处理单元901用于根据所述第一参考信号获取所述辅小区的信道测量结果。
可选的，所述通信装置还包括发射单元903，所述发射单元903用于向所述接入网设备发送所述信道测量结果。
具体地，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者，所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。可选的，所述第二参考信号是周期性的。
需要说明的是，上述通信装置900进行的辅小区激活方法的具体实施方式可参见本发明实施例提供的辅小区激活方法的描述。本发明实施例的通信装置900与图4对应的辅小区激活方法基于同一构思，其带来的技术效果与上述资源调度方法相同。本实施例中通信装置所包含的处理单元901、接收单元902、发射单元903以及存储单元904的具体功能以及其中所涉及的任何特征、术语和实现细节与图3对应的方法实施例中的终端设备的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述，此处不再赘述。
又一种可选的方式，当使用软件实现通信装置时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地实现本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如软盘、硬盘、磁带)、光介质(例如DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
需要说明的是，用于执行本发明实施例提供的辅小区激活方法的上述接入网设备以及通信装置中所包含的处理器可以是中央处理器(CPU)，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)，现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。
结合本发明实施例所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于 ASIC中。另外，该ASIC可以位于终端设备中。当然，处理器和存储介质也可以作为分立组件存在于终端设备中。
可以理解的是，图6-9仅仅示出了接入网设备或通信装置的简化设计。在实际应用中，接入网设备或通信装置可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等。
本发明实施例还提供一种通信系统，其包含执行本发明上述实施例所提到的至少一个接入网设备以及至少一个通信装置。
应理解，说明书通篇中提到的“一个实施例”，“一实施例”，或“本发明实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”，“在一实施例中”，或“本发明实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本发明的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明的保护范围之内。
上述主要从各个网元之间交互的角度对本发明实施例提供的方案进行了介绍。可以理解的是，各个网元，例如通信装置、无线接入网设备等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (40)

  1. 一种辅小区激活方法，其特征在于，包括：
    接入网设备向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
    所述接入网设备向所述终端设备发送第一参考信号的第一配置信息；
    所述接入网设备根据所述第一配置信息向所述终端设备发送第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
  2. 根据权利要求1所述的方法，其特征在于，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者
    所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
  3. 根据权利要求2所述的方法，其特征在于，所述第二参考信号为周期性的。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，
    所述第一参考信号为同步信号，或者信道状态信息参考信号。
  5. 根据权利要求1所述的方法，其特征在于，还包括：
    当所述接入网设备确定所述终端设备未与所述辅小区同步的情况下，所述参考信号为同步信号；
    当所述接入网设备确定所述终端设备与所述辅小区同步的情况下，所述参考信号为信道状态信息参考信号。
  6. 根据权利要求1-5任一项所述的方法，其特征在于：
    所述激活命令包含所述第一配置信息；或者
    所述接入网设备在发送所述激活命令之前发送所述第一配置信息；或者
    所述激活命令包含所述第一配置信息的第一部分，所述接入网设备在发送所述激活命令之前发送所述第一配置信息的第二部分。
  7. 根据权利要求1-6任一项所述的方法，其特征在于：
    所述第一配置信息包含以下信息中的至少一个：
    参考信号发送指示；
    参考信号发送时间；
    参考信号周期；
    参考信号时域资源位置；
    参考信号频域资源位置；以及
    参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
  8. 根据权利要求7所述的方法，其特征在于：
    所述第一参考信号的参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的相对时间差，或者为所述接入网设备发送所述第一参考信号的时间。
  9. 根据权利要求1-7任一项所述的方法，其特征在于：所述接入网设备根据所述配置信息向所述终端设备发送第一参考信号之前，还包括：
    当所述终端设备可用的第二参考信号与当前的时间差超过第一阈值时，所述接入网设 备确定向所述终端设备发送所述第一参考信号，其中，所述第一阈值是预先设置的。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述方法还包括：
    所述接入网设备从所述终端设备接收所述信道测量结果。
  11. 一种辅小区激活方法，其特征在于：
    终端设备从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
    所述终端设备从所述接入网设备接收第一参考信号的第一配置信息；
    所述终端设备根据所述第一配置信息接收所述第一参考信号，并根据所述第一参考信号获取所述辅小区的信道测量结果。
  12. 根据权利要求11所述的方法，其特征在于，所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者
    所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
  13. 根据权利要求12所述的方法，其特征在于，所述第二参考信号为周期性的。
  14. 根据权利要求11-13任一项所述的方法，其特征在于：
    所述第一参考信号为同步信号，或者信道状态信息参考信号。
  15. 根据权利要求11-14任一项所述的方法，其特征在于：
    所述激活命令包含所述第一配置信息；或者
    所述终端设备在接收所述激活命令之前接收所述第一配置信息；或者，
    所述激活命令包含所述第一配置信息的第一部分，所述终端设备在接收所述激活命令之前接收所述第一配置信息的第二部分。
  16. 根据权利要求11-15任一项所述的方法，其特征在于：
    所述第一配置信息包含以下信息中的至少一个：
    参考信号发送指示；
    参考信号发送时间；
    参考信号周期；
    参考信号时域资源位置；
    参考信号频域资源位置；以及
    参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
  17. 根据权利要求16所述的方法，其特征在于：
    所述第一参考信号的参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的时间差，或者为所述接入网设备发送所述第一参考信号的时间。
  18. 根据权利要求11-17任一项所述的方法，其特征在于：
    所述终端设备向所述接入网设备发送所述信道测量结果。
  19. 一种接入网设备，包括发射器以及处理器，其特征在于：
    所述处理器用于确定第一参考信号的第一配置信息；
    所述发射器用于向终端设备发送激活命令，所述激活命令用于指示激活辅小区；
    所述发射器还用于向所述终端设备发送所述处理器确定的所述第一参考信号的第一配置信息；
    所述发射器还用于根据所述第一配置信息向所述终端设备发送所述第一参考信号，所述第一参考信号用于获取所述辅小区的信道测量结果。
  20. 根据权利要求19所述的接入网设备，其特征在于，
    所述第一参考信号在时域上位于所述终端设备可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者
    所述第一参考信号在时域上位于所述终端设备的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
  21. 根据权利要求20所述的接入网设备，其特征在于，所述第二参考信号为周期性的。
  22. 根据权利要求19-21任一项所述的接入网设备，其特征在于，
    所述第一参考信号为同步信号，或者信道状态信息参考信号。
  23. 根据权利要求19所述的接入网设备，其特征在于，
    若所述处理器确定所述终端设备未与所述辅小区同步，所述参考信号为同步信号；
    若所述处理器确定所述终端设备与所述辅小区同步，所述参考信号为信道状态信息参考信号。
  24. 根据权利要求19-23任一项所述的接入网设备，其特征在于：
    所述激活命令包含所述第一配置信息；或者
    所述发射器在发送所述激活命令之前发送所述第一配置信息；或者
    所述激活命令包含所述第一配置信息的第一部分，所述发射器在发送所述激活命令之前发送所述第一配置信息的第二部分。
  25. 根据权利要求19-24任一项所述的接入网设备，其特征在于：
    所述第一配置信息包含以下信息中的至少一个：
    参考信号发送指示；
    参考信号发送时间；
    参考信号周期；
    参考信号时域资源位置；
    参考信号频域资源位置；以及
    参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
  26. 根据权利要求25所述的接入网设备，其特征在于：
    所述第一参考信号的参考信号发送时间为所述发射器发送所述第一参考信号的时间相对于所述发射器发送所述激活命令的时间的相对时间差，或者为所述发射器发送所述第一参考信号的时间。
  27. 根据权利要求19-26任一项所述的接入网设备，其特征在于：所述发射器根据所述配置信息向所述终端设备发送第一参考信号之前，还包括：
    若所述处理器确定所述终端设备可用的第二参考信号与当前的时间差超过第一阈值时，所述处理器确定向所述终端设备发送所述第一参考信号，其中，所述第一阈值是预先设置的。
  28. 根据权利要求19-27任一项所述的接入网设备，其特征在于，所述接入网设备还包括接收器，所述接收器用于从所述终端设备接收所述信道测量结果。
  29. 一种通信装置，其特征在于，所述通信装置包括接收器以及处理器：
    所述接收器用于从接入网设备接收激活命令，所述激活命令用于指示激活辅小区；
    所述接收器还用于从所述接入网设备接收第一参考信号的第一配置信息；
    所述接收器还用于根据所述第一配置信息接收所述第一参考信号；
    所述处理器用于根据所述第一参考信号获取所述辅小区的信道测量结果。
  30. 根据权利要求29所述的通信装置，其特征在于，所述第一参考信号在时域上位于所述通信装置可用的第二参考信号之前，所述第二参考信号是通过第二配置信息配置的；或者
    所述第一参考信号在时域上位于所述通信装置的两个相邻的第二参考信号之间，所述两个相邻的第二参考信号是通过同一个第二配置信息配置的。
  31. 根据权利要求30所述的通信装置，其特征在于，所述第二参考信号为周期性的。
  32. 根据权利要求29-31任一项所述的通信装置，其特征在于：
    所述第一参考信号为同步信号，或者信道状态信息参考信号。
  33. 根据权利要求29-32任一项所述的通信装置，其特征在于：
    所述激活命令包含所述第一配置信息；或者
    所述接收器在接收所述激活命令之前接收所述第一配置信息；或者，
    所述激活命令包含所述第一配置信息的第一部分，所述接收器在接收所述激活命令之前接收所述第一配置信息的第二部分。
  34. 根据权利要求29-33任一项所述的通信装置，其特征在于：
    所述第一配置信息包含以下信息中的至少一个：
    参考信号发送指示；
    参考信号发送时间；
    参考信号周期；
    参考信号时域资源位置；
    参考信号频域资源位置；以及
    参考信号配置索引，所述参考信号配置索引用于指示参考信号配置信息的位置。
  35. 根据权利要求34所述的通信装置，其特征在于：
    所述第一参考信号发送时间为所述接入网设备发送所述第一参考信号的时间相对于所述接入网设备发送所述激活命令的时间的时间差，或者为所述接入网设备发送所述第一参考信号的时间。
  36. 根据权利要求29-35任一项所述的通信装置，其特征在于，所述通信装置还包括发射器，其中，所述发射器用于向所述接入网设备发送所述信道测量结果。
  37. 一种通信装置，其包含处理器和存储器，所述存储器上存储有计算机程序，所述处理器执行所述计算机程序时，实现权利要求1-10任一项所述的方法。
  38. 一种通信装置，其包含处理器和存储器，所述存储器上存储有计算机程序，所述处理器执行所述计算机程序时，实现权利要求11-18任一项所述的方法
  39. 一种计算机存储介质，其上存储有计算机程序，当所述计算机程序被处理器执行时实现权利要求1-10任一项所述的方法。
  40. 一种计算机存储介质，其上存储有计算机程序，当所述计算机程序被处理器执行时实现权利要求11-18任一项所述的方法。
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