WO2015109490A1 - 通信方法、用户设备和基站 - Google Patents

通信方法、用户设备和基站 Download PDF

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Publication number
WO2015109490A1
WO2015109490A1 PCT/CN2014/071249 CN2014071249W WO2015109490A1 WO 2015109490 A1 WO2015109490 A1 WO 2015109490A1 CN 2014071249 W CN2014071249 W CN 2014071249W WO 2015109490 A1 WO2015109490 A1 WO 2015109490A1
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WO
WIPO (PCT)
Prior art keywords
secondary cell
base station
frequency band
unlicensed frequency
available
Prior art date
Application number
PCT/CN2014/071249
Other languages
English (en)
French (fr)
Inventor
黄曲芳
张健
曾清海
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/071249 priority Critical patent/WO2015109490A1/zh
Priority to CN201480000900.4A priority patent/CN105103586B/zh
Publication of WO2015109490A1 publication Critical patent/WO2015109490A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks

Definitions

  • the present invention relates to communication technologies, and in particular, to a communication method, a user equipment, and a base station. Background technique
  • Radio communication requires the use of frequency resources, which are divided into a license band and an unlicense band.
  • the licensed frequency band refers to the frequency band licensed to a specific operating company for wireless applications.
  • the licensed frequency band can only be used by operators who have the right to use. Other individuals and organizations cannot use the licensed frequency band for wireless communication.
  • Unlicensed bands are not licensed to specific carriers, and anyone can communicate using unlicensed bands without paying a fee. Currently, unlicensed bands are mainly distributed around 2.4 GHz and 5 GHz. Unlicensed bands are widely used in microwave ovens, medical equipment and wireless LANs.
  • LTE Long Term Evolution
  • the licensed frequency band that is, the LTE cell is set up by using the unlicensed frequency band.
  • the LTE cell that uses the unlicensed frequency band is called an unlicensed cell, and the cell that uses the authorized frequency band is called an authorized cell.
  • CA Carrier Aggregation
  • the base station may configure one primary cell and multiple secondary cells for the UE, the primary cell uses the primary carrier communication, and the secondary cell uses the secondary carrier communication, and the UE may also use the secondary carrier to communicate while using the primary carrier communication, thereby High-speed data transmission is supported.
  • the secondary carrier usually uses the licensed frequency band. To reduce the cost of the carrier, how to improve the use efficiency of the unlicensed frequency band in the carrier aggregation scenario has become an urgent problem for operators. Summary of the invention
  • the present invention provides a communication method, a user equipment, and a base station, which can improve the use efficiency of an unlicensed frequency band.
  • a first aspect of the present invention provides a user equipment UE, including:
  • a receiving unit configured to receive a secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE
  • the secondary cell configuration command includes a radio resource management (RRM) measurement indication, where the RRM measurement indication is used to indicate that the UE is receiving the secondary cell configuration command, and when the unlicensed frequency band is not sent to the UE.
  • RRM radio resource management
  • the receiving unit is further configured to: when the secondary cell has an available unlicensed frequency band, receive a secondary cell activation command sent by the second base station or the first base station;
  • an activation unit configured to activate the secondary cell according to the secondary cell activation command received by the receiving unit.
  • the UE further includes: a measurement unit;
  • the receiving unit is further configured to: receive a pilot signal that is sent by the second base station by using the unlicensed frequency band;
  • the measuring unit is configured to perform the RRM measurement according to the pilot signal, where the pilot signal is sent to the UE after the second base station determines that the unlicensed frequency band is available.
  • the UE further includes: a sending unit, configured to send, by the UE, a channel of the secondary cell to the second base when transmitting the first uplink Status information CSI.
  • the sending unit is specifically configured to:
  • the secondary cell activation command further includes:
  • the UE further includes a calculating unit, configured to:
  • the UE further includes: a detecting unit: configured to detect whether the secondary cell fails to generate a radio link;
  • the activation unit is further configured to: determine that the secondary cell is deactivated.
  • the calculating unit is further configured to:
  • the UE After the activation unit determines that the secondary cell is deactivated, the UE re-detects the power headroom of the UE, and triggers a power headroom report, so that the first base station adjusts the power headroom according to the power headroom.
  • the uplink transmit power of the UE.
  • a second aspect of the present invention provides a base station, where the base station is a first base station, including:
  • a sending unit configured to send a secondary cell configuration command to the user equipment UE, to instruct the UE to configure the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate the The UE performs RRM measurement on the secondary cell when the secondary cell configuration command is received, and when the secondary cell has an available unlicensed frequency band, where the first base station is a base station corresponding to the primary cell, the primary The cell uses the licensed frequency band communication, the secondary cell uses the unlicensed frequency band communication, and the primary cell provides the service to the UE;
  • a determining unit configured to determine that an unlicensed frequency band is available in the secondary cell
  • the sending unit is further configured to: when the secondary cell has an available unlicensed frequency band, send a secondary cell activation command to the UE, to activate the secondary cell.
  • the base station further includes: a receiving unit, configured to receive usage information of the unlicensed frequency band sent by the second base station, where the second base station is a base station corresponding to the secondary cell;
  • the determining unit is specifically configured to: determine, according to usage information of the unlicensed frequency band, whether the unlicensed frequency band is available;
  • the determining unit is specifically used In:
  • Detecting a usage status of the unlicensed frequency band of the secondary cell and determining, according to a usage status of the unlicensed frequency band, that the unlicensed frequency band is available.
  • a third aspect of the present invention provides a base station, where the base station is a second base station, the method includes: a determining unit, configured to determine an unlicensed frequency band that is available to the secondary cell, where the second base station is a base station corresponding to the secondary cell;
  • a sending unit configured to send a secondary cell activation command to the user equipment UE, so that the UE activates the secondary cell according to the secondary cell activation command.
  • the sending unit is specifically configured to:
  • the first base station sends the secondary cell activation command to the UE according to the usage information of the unlicensed frequency band, where the first base station is A base station corresponding to the primary cell, where the primary cell provides a service to the UE.
  • the sending unit after the sending unit sends the secondary cell activation command to the UE, the sending unit is further configured to:
  • a fourth aspect of the present invention provides a user equipment (UE), including: a processor, a memory, and a network interface, where the processor is configured to execute executable instructions stored in the memory, where the network interface is used by the UE and other networks. Communication connection between the elements;
  • UE user equipment
  • the processor is configured to perform the following operations:
  • the secondary cell configuration command includes a radio resource management RRM measurement indication, where the second base station corresponding to the secondary cell does not have an available unlicensed frequency band, where the RRM measurement indication is used to indicate that the UE is receiving
  • the secondary cell configuration command and when the secondary cell has an available unlicensed frequency band, performs RRM measurement on the secondary cell, where the primary cell uses authorized frequency band communication, and the secondary cell uses unlicensed frequency band communication;
  • the secondary cell activation command sent by the base station activates the secondary cell according to the secondary cell activation command.
  • the processor is further configured to:
  • the processor is further configured to: send channel state information of the secondary cell to the second base when transmitting the first uplink
  • the method when the processor sends the channel state information CSI of the secondary cell to the second base during the first uplink transmission, the method is specifically used to:
  • the secondary cell activation command further includes:
  • the maximum allowable uplink transmit power of the UE and/or the pilot transmit power of the secondary cell is further configured to calculate, according to the maximum allowed uplink transmit power, a power headroom of the UE, and The pilot transmit power of the secondary cell measures a path loss between the UE and the second base station.
  • the processor is further configured to: when the UE detects that the secondary cell fails to generate a radio link, determine that the secondary cell is deactivated.
  • a fifth aspect of the present invention provides a base station, where the base station is a first base station, including:
  • a transmitter configured to send a secondary cell configuration command to the user equipment UE, to indicate that the UE configures the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement finger
  • the RRM measurement indication is used to indicate that the UE performs RRM measurement on the secondary cell when receiving the secondary cell configuration command and when the secondary cell has an available unlicensed frequency band, where a base station is a base station corresponding to the primary cell, the primary cell uses an authorized frequency band to communicate, and the secondary cell uses an unlicensed frequency band to communicate, and the primary cell provides a service to the UE;
  • a processor configured to determine that an unlicensed frequency band is available to the secondary cell
  • the transmitter is further configured to: when the secondary cell has an available unlicensed frequency band, send a secondary cell activation command to the UE, to activate the secondary cell.
  • the method further includes:
  • a receiver configured to receive usage information of the unlicensed frequency band sent by the second base station, where the second base station is a base station corresponding to the secondary cell;
  • the processor is specifically configured to: determine, according to usage information of the unlicensed frequency band, whether the unlicensed frequency band is available;
  • the processor is specifically used to:
  • Detecting a usage status of the unlicensed frequency band of the secondary cell and determining, according to a usage status of the unlicensed frequency band, that the unlicensed frequency band is available.
  • a sixth aspect of the present invention provides a base station, where the base station is a second base station, including:
  • a processor configured to determine that an unlicensed frequency band is available to the secondary cell, where the second base station is a base station corresponding to the secondary cell;
  • a transmitter configured to send, when the processor determines that the secondary cell has an unlicensed frequency band, send a secondary cell activation command to the UE, to enable the UE to activate the secondary cell according to the secondary cell activation command.
  • the transmitter is specifically configured to: send usage information of the unlicensed frequency band to a first base station, so that the first base station is not authorized according to the The usage information of the frequency band sends the secondary cell activation command to the UE, where the first base station is a base station corresponding to the primary cell, and the primary cell provides a service to the UE.
  • the transmitter after the sending, by the transmitter, the secondary cell activation command to the UE, The transmitter is also used to: And transmitting, by using the unlicensed frequency band, a pilot signal to the UE, so that the UE performs radio resource management RRM measurement according to the pilot signal.
  • a seventh aspect of the present invention provides a communication method, including:
  • the user equipment UE receives the secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE, and configures the secondary cell according to the secondary cell configuration command, where the secondary cell configuration command is the first
  • the base station sends the radio resource management RRM measurement indication to the UE before the second base station corresponding to the secondary cell does not have an available unlicensed frequency band, where the RRM measurement indication is used to indicate the UE Performing RRM measurement on the secondary cell when the secondary cell configuration command is received and when the secondary cell has an unlicensed frequency band available, the primary cell uses an authorized frequency band communication, and the secondary cell uses an unlicensed frequency band communication ;
  • the UE When the secondary cell has an unlicensed frequency band, the UE receives the secondary cell activation command sent by the second base station or the first base station, and activates the secondary cell according to the secondary cell activation command.
  • the UE receives a secondary cell activation command sent by the second base station or the first base station, and activates the secondary cell according to the secondary cell activation command. After that, it also includes:
  • the method further includes:
  • the UE sends the channel state information CSI of the secondary cell to the second base during the first uplink transmission.
  • the sending, by the UE, the channel state information CSI of the secondary cell to the second base station, when the first uplink is sent includes: Sending the CSI to the first base station in an uplink transmission, to forward the CSI to the second base station by using the first base station.
  • the secondary cell activation command further includes: a maximum allowed uplink transmit power of the UE and/or a pilot transmit power of the secondary cell, so that the UE calculates a power headroom of the UE according to the maximum allowed uplink transmit power, and according to the secondary cell
  • the pilot transmission power measures a path loss between the UE and the second base station.
  • the method further includes:
  • the UE determines that the secondary cell is deactivated.
  • the method further includes:
  • the UE re-detects the power headroom of the UE, and triggers the power headroom reporting, so that the first base station adjusts the uplink transmit power of the UE according to the power headroom.
  • An eighth aspect of the present invention provides a communication method, including:
  • the first base station sends a secondary cell configuration command to the user equipment UE, where the second cell configuration command is used to instruct the UE to configure the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate the
  • the UE performs RRM measurement on the secondary cell when the secondary cell configuration command is received, and when the secondary cell has an available unlicensed frequency band, where the first base station is a base station corresponding to the primary cell, the primary The cell uses the licensed frequency band communication, the secondary cell uses the unlicensed frequency band communication, and the primary cell provides the service to the UE;
  • the first base station When the secondary cell has an available unlicensed frequency band, the first base station sends a secondary cell activation command to the UE to activate the secondary cell.
  • the determining, by the first base station, an unlicensed frequency band that is available to the secondary cell includes:
  • the first base station receives usage information of the unlicensed frequency band that is sent by the second base station, where the second base station is a base station corresponding to the secondary cell;
  • the first base station determines that the unlicensed band is available.
  • the determining, by the first base station, the unlicensed frequency band that is available to the secondary cell includes: The first base station detects a usage status of the unlicensed frequency band of the secondary cell, and determines that the unlicensed frequency band is available according to a usage state of the unlicensed frequency band.
  • a ninth aspect of the present invention provides a communication method, including:
  • the second base station sends a secondary cell activation command to the user equipment UE, so that the UE activates the secondary cell according to the secondary cell activation command.
  • the sending, by the second base station, the secondary cell activation command to the UE includes:
  • the second base station sends the usage information of the unlicensed frequency band to the first base station, so that the first base station sends the secondary cell activation command to the UE according to the usage information of the unlicensed frequency band, where
  • the first base station is a base station corresponding to the primary cell, and the primary cell provides a service to the UE.
  • the second base station sends a pilot signal to the UE by using the unlicensed frequency band, so that the UE performs radio resource management RRM measurement according to the pilot signal.
  • the first base station before the second base station corresponding to the secondary cell preempts the unlicensed frequency band, configures the secondary cell to the UE, and preempts the available in the secondary cell.
  • the RRM measurement can be performed and the secondary cell is activated, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • FIG. 1 is a schematic structural diagram of a user equipment according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a configuration of an unlicensed cell in the prior art
  • FIG. 3 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 6 is a flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of another communication method according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of still another communication method according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of still another communication method according to an embodiment of the present invention.
  • FIG. 10 is a signaling flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of still another user equipment according to an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure
  • FIG. 13 is a schematic structural diagram of a second base station according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the communication method provided by the embodiments of the present invention can be applied to an LTE system and a Universal Mobile Telecommunications System (UMT).
  • the base station is an evolved base station ( Evolved Node B, referred to as eNB).
  • the UE can be a mobile terminal, such as a mobile phone, a personal digital assistant (PAD).
  • PAD personal digital assistant
  • the primary cell and the secondary cell mentioned in the embodiments of the present invention are for each UE, for example, the primary cell of the first UE may be the secondary cell of the second UE, and the secondary cell of the first UE may be the second UE.
  • the main cell is for example, the primary cell of the first UE may be the secondary cell of the second UE, and the secondary cell of the first UE may be the second UE.
  • first base station corresponding to the primary cell of the same UE and the second base station corresponding to the secondary cell are only logically divided, and the first base station and the second base station may be the same base station on the entity, or may be two on the entity. Different base stations.
  • FIG. 1 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, as shown in FIG.
  • the user equipment provided in this embodiment includes: a receiving unit 11, a configuration unit 12, and an activation unit 13.
  • the receiving unit 11 is configured to receive a secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE;
  • the configuration unit 12 is configured to configure a secondary cell for the UE according to the secondary cell configuration command received by the receiving unit 11, where the secondary cell configuration command is the first base station corresponding to the secondary cell
  • the secondary cell configuration command includes a radio resource management RRM measurement indication, where the second base station does not have an available unlicensed frequency band, where the RRM measurement indication is used to indicate that the UE is receiving the secondary cell configuration command. And performing RRM measurement on the secondary cell when the secondary cell has an unlicensed frequency band, where the primary cell uses the licensed frequency band to communicate, and the secondary cell uses the unlicensed frequency band to communicate;
  • the receiving unit 11 is further configured to: when the secondary cell has an unlicensed frequency band available, receive the secondary cell activation command sent by the second base station or the first base station;
  • the activation unit 13 is configured to activate the secondary cell according to the secondary cell activation command received by the receiving unit 11.
  • the first base station corresponding to the primary cell of the UE configures the secondary cell for the UE before the second base station corresponding to the secondary cell occupies the unlicensed frequency band, and it is clear that the secondary cell can be configured for one or more UEs.
  • the first base station configures a secondary cell for the UE by sending a secondary cell configuration command to the UE, where the secondary cell configuration command includes a Radio Resource Management (RRM) measurement indication, where the RRM measurement indication is used to indicate that the UE is receiving the secondary cell.
  • RRM measurement is not performed immediately after the configuration of the command, but RRM measurement is performed on the secondary cell when the secondary cell has an unlicensed frequency band available.
  • RRM Radio Resource Management
  • the base station of the unlicensed cell must continuously detect the idle condition of the unlicensed band. If the unlicensed band is occupied by other devices, the base station continues to detect until the base station detects that the unlicensed band is idle.
  • the unlicensed band can be used by the cell, and therefore, the unlicensed cell is discontinuous in time.
  • CA Carrier Aggregation
  • the base station may configure one primary cell and multiple secondary cells for the UE, the primary cell uses primary carrier communication, and the secondary cell uses secondary carrier communication, and the UE may also use the secondary carrier to communicate while using the primary carrier communication, thereby Support high speed data transmission.
  • the UE immediately starts RRM for the secondary carrier. At this time, if the secondary cell uses an unlicensed band, The secondary cell has no available unlicensed frequency band. If the secondary cell performs the RRM measurement on the secondary cell immediately after receiving the secondary cell configuration command, the signal strength of the secondary cell measured by the UE is lower than the threshold, and the first base station will The secondary cell is deleted. Therefore, in this embodiment, the first base station carries the RRM measurement indication in the secondary cell configuration command, indicating that the secondary cell is not available yet, and after receiving the secondary cell configuration command, the UE does not immediately perform the secondary cell according to the RRM measurement indication.
  • the UE performs RRM measurement on the secondary cell.
  • the configuration process may be performed. It takes a certain amount of time to reduce the time for the UE to use the unlicensed band communication. Generally, the configuration process takes 30-50 milliseconds. Therefore, the time for the UE to use the unlicensed band communication is reduced by 30-50 milliseconds. .
  • the network side determines that the unlicensed cell has an idle unlicensed frequency band
  • the unlicensed cell is configured to the UE as the secondary cell, and the UE starts the RRM measurement after receiving the command.
  • the network side After the measurement is completed, the network side sends an activation command to the UE to activate the secondary cell. After a delay, the UE can actually use the unlicensed cell to communicate. Generally, the time that an unlicensed cell can use an unlicensed band is typically several hundred milliseconds. Since the network side has 50-60 milliseconds from the configuration and activation of the unlicensed cell to the time when the UE actually uses the unlicensed frequency band, the use time of the unlicensed frequency band is reduced, resulting in waste of unlicensed frequency band resources.
  • the first base station configures the secondary cell to the UE, so that after the secondary cell preempts the unlicensed frequency band, the UE can activate the secondary cell and perform the secondary cell.
  • the RRM measurement reduces the time for configuring the unlicensed band occupied by the secondary cell, increases the time for the UE to use the unlicensed band, and improves the usage rate of the unlicensed band.
  • the secondary cell In order for the UE to actually use the secondary cell for communication, the secondary cell must also be activated.
  • the second base station After the second base station preempts the unlicensed frequency band, the second base station directly sends a secondary cell activation command to the UE to notify the UE to activate the secondary cell; or the second base station actively sends the use information of the unlicensed frequency band to the first base station, so that The first base station determines, according to the usage information of the unlicensed frequency band, an unlicensed frequency band that is available to the second base station, and then the first base station sends a secondary cell activation command to the UE.
  • the first base station may also actively query the second base station whether the second base station has an available unlicensed frequency band.
  • the second base station If the second base station has an available unlicensed frequency band, the second base station carries the unauthorized one in the response returned to the first base station.
  • the usage information of the frequency band the first base station determines, according to the use information of the unlicensed frequency band, that the second base station has available non-
  • the first base station may also detect the use status of the unlicensed frequency band by itself, determine that the unlicensed frequency band is available according to the use status of the unlicensed frequency band, and then, the first base station sends a secondary cell activation command to the UE. After the secondary cell is activated, the UE can communicate with the second base station using the unlicensed frequency band.
  • the configuration unit configures the secondary cell for the UE according to the secondary cell configuration command received by the receiving unit, where the secondary cell configuration command is that the second base station corresponding to the first base station in the secondary cell is not yet configured.
  • the UE is configured to send to the UE before the unlicensed band is available.
  • the UE has configured the secondary cell before the second cell corresponding to the secondary cell preempts the unlicensed band. After the secondary cell preempts the available unlicensed band, the UE The secondary cell can be activated and RRM measurement is performed, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • FIG. 3 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the user equipment is a further description of the user equipment shown in FIG. 1.
  • the user equipment provided in this embodiment includes: a receiving unit 21, a configuration unit 22, and an activation unit 23.
  • the receiving unit 21 is configured to receive a secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE;
  • the configuration unit 22 is configured to configure a secondary cell for the UE according to the secondary cell configuration command received by the receiving unit 21, where the secondary cell configuration command is the first base station corresponding to the secondary cell
  • the secondary cell configuration command includes a radio resource management RRM measurement indication, where the second base station does not have an available unlicensed frequency band, where the RRM measurement indication is used to indicate that the UE is receiving the secondary cell configuration command. And performing RRM measurement on the secondary cell when the secondary cell has an unlicensed frequency band, where the primary cell uses the licensed frequency band to communicate, and the secondary cell uses the unlicensed frequency band to communicate;
  • the receiving unit 21 is further configured to: when the secondary cell has an unlicensed frequency band available, receive the secondary cell activation command sent by the second base station or the first base station;
  • the activation unit 23 is configured to activate the secondary cell according to the secondary cell activation command received by the receiving unit 21.
  • the UE provided in this embodiment may further include a measurement unit 24, after the activation unit 23 activates the secondary cell according to the secondary cell activation command, the receiving unit 21 is further configured to: receive the second base station. a pilot signal transmitted using the unlicensed frequency band; the measurement list The element 24 is configured to perform the RRM measurement according to the pilot signal, where the pilot signal is sent to the UE after the second base station determines that the unlicensed frequency band is available.
  • the collision detection and evasive strategy is generally required. Before using the unlicensed band, the idle condition of the unlicensed band is detected, and only when the unlicensed band is idle, if the second When the base station detects that the unlicensed band is occupied, the base station continues to detect until the unlicensed band is detected to be idle, and the second base station determines that the unlicensed band is available. The second base station sends a pilot signal to the UE, so that the UE performs RRM measurement according to the pilot signal.
  • the purpose of the RRM measurement is mainly for channel allocation, power control, handover control, and load control.
  • the pilot signal is sent to the UE, and then the UE performs RRM measurement on the secondary cell according to the pilot signal.
  • the UE after configuring the secondary cell, the UE does not detect the pilot of the secondary cell according to the RRM measurement indication in the secondary cell configuration command, and the UE performs the RRM measurement according to the pilot after receiving the activation command.
  • the UE after the UE is configured with the secondary cell, the UE continuously detects the pilot of the secondary cell without conditions, but the UE does not perform RRM measurement.
  • the UE provided in this embodiment may further include: a sending unit 25, configured to
  • the UE sends the channel state information CSI of the secondary cell to the second base during the first uplink transmission.
  • the sending unit 25 directly sends the channel state information (CSI) of the secondary cell to the second base station when the first uplink is sent.
  • the sending unit 25 is in the first The CSI is sent to the first base station when the uplink is sent, to forward the CSI to the second base station by using the first base station. Specifically, if the first uplink of the UE is sent by the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH for short), the UE unconditionally carries the CSI corresponding to the secondary cell, if the secondary cell is activated.
  • Physical Uplink Shared Channel Physical Uplink Shared Channel
  • the first uplink of the UE is the physical uplink control channel (Physical Uplink Control Channel, PUCCH for short), and the PUCCH is used to transmit the CSI of other secondary cells, regardless of which CSI is used for the secondary cell.
  • PUCCH Physical Uplink Control Channel
  • the UE sends the channel state information CSI of the secondary cell to the second base station when the first uplink is sent, so that the UE can send the CSI of the secondary cell to the second base station in time, so that the second base station can use the secondary cell according to the secondary cell.
  • the CSI can reasonably schedule the UE and improve the efficiency of resource usage.
  • the CSI of the secondary cell includes a Channel Quality Indicator (CQI).
  • the secondary cell activation command further includes: a maximum allowed uplink transmission power of the UE and/or a pilot transmission power of the secondary cell.
  • the UE further includes a power headroom calculation unit and a path loss calculation; the power headroom calculation, the calculation unit is configured to: calculate a power headroom of the UE according to the maximum allowed uplink transmit power, and The pilot transmit power of the secondary cell measures a path loss between the UE and the second base station.
  • the first base station sends the two parameters to the UE when the secondary cell is configured to the UE, and the first base station can be in the secondary cell.
  • the configuration command carries the maximum allowed uplink transmit power of the UE and the pilot transmit power of the cell.
  • the value of the two parameters of the maximum allowed uplink transmit power of the UE and the pilot transmit power of the cell may have changed. Therefore, in this embodiment, in order to make the path loss and the power headroom calculated by the UE more accurate, the secondary cell activation command carries the maximum allowed uplink transmission power of the UE and/or the pilot transmission power of the secondary cell.
  • the second base station or the first base station needs to resend the two parameters to the UE.
  • the secondary cell activation command may only carry the maximum uplink transmit power of the changed UE, and the UE calculates the power headroom according to the changed maximum uplink transmit power, and calculates The path loss is still calculated according to the pilot transmit power of the pre-configured secondary cell. If only the pilot transmit power of the secondary cell changes, the secondary cell activation command may only carry the pilot transmit power of the changed secondary cell, and the UE calculates the path loss according to the pilot transmit power of the changed secondary cell.
  • the UE calculates the power headroom according to the maximum allowed uplink transmit power of the pre-configured UE. If the maximum allowed uplink transmit power of the UE and the pilot transmit power of the secondary cell are changed, the secondary cell activation command needs to carry the maximum allowed uplink transmit power of the changed UE and the pilot transmit power of the changed secondary cell.
  • the UE calculates the maximum allowed uplink transmit power of the changed UE, and the UE calculates the path loss according to the pilot transmit power of the changed secondary cell. After calculating the path loss, the UE determines whether to trigger the power headroom report according to the path loss.
  • the UE sends a power headroom report to the second base station, or the UE sends the power headroom report to the first base station, where The first base station is forwarded to the second base station.
  • the UE may further include: a detecting unit: configured to detect whether the secondary cell fails to generate a radio link; when the detecting unit detects that the secondary cell fails to generate a radio link, the activation unit 23 determines The secondary cell is deactivated.
  • the UE can detect whether the secondary cell fails the radio link by itself, and can deactivate the secondary cell in time.
  • the first base station or the second base station may detect whether the secondary cell has a radio link failure according to the method in the prior art.
  • the first base station or the second base station detects that the secondary cell fails to generate a radio link
  • the first base station or the second base station sends a secondary cell close notification message to the UE.
  • the receiving unit 21 receives the secondary cell close notification message
  • the activation unit 23 determines that the secondary cell is deactivated.
  • the first base station and the second base station have a certain delay in detecting whether the radio link fails, and it also takes a certain time to notify the UE to close the secondary cell, which is complicated to implement, and the delay cannot be timely The cell is deactivated.
  • the calculating unit is further configured to: after the activation unit determines that the secondary cell is deactivated, re-detect the power headroom of the UE, and trigger a power headroom report, so that the first base station is configured according to the The power headroom adjusts an uplink transmit power of the UE. After the secondary cell is deactivated, the power of the UE is changed. In this embodiment, the power headroom of the UE is re-detected by the computing unit, and the power headroom is triggered, so that the first base station can adjust the uplink transmit power of the UE in time.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station may perform the action of the first base station in the foregoing embodiment.
  • the base station provided in this embodiment includes: a sending unit 31 and a determining unit. 32.
  • the sending unit 31 is configured to send a secondary cell configuration command to the user equipment UE, to instruct the UE to configure the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate When the UE receives the secondary cell configuration command and when the secondary cell has an available unlicensed frequency band, the RRM is performed on the secondary cell, where the base station is a base station corresponding to the primary cell, and the primary cell Communicating with a licensed frequency band, the secondary cell communicating using an unlicensed frequency band, and the primary cell providing a service to the UE;
  • a determining unit 32 configured to determine that an unlicensed frequency band is available to the secondary cell
  • the sending unit 31 is further configured to: when the secondary cell has an unlicensed frequency band available, send a secondary cell activation command to the UE, where the secondary cell activation command is used to activate the secondary cell.
  • the determining unit 32 determines that the secondary cell has an available unlicensed frequency band
  • the base station further includes a receiving unit, where the receiving unit is configured to receive the usage information of the unlicensed frequency band sent by the second base station, where the second base station is the base station corresponding to the secondary cell.
  • the usage information of the unlicensed frequency band includes a busy condition of the unlicensed frequency band, and the determining unit 32 determines whether the unlicensed frequency band is available according to the usage information of the unlicensed frequency band; if the unlicensed frequency band is idle, the determining unit 32 determines that the unlicensed frequency band can be used. .
  • the second base station may actively send the use information of the unlicensed frequency band to the base station, or the base station periodically actively requests the second base station whether the second base station is available.
  • the unlicensed frequency band if the second base station preempts the unlicensed frequency band, the second base station returns the usage information of the unlicensed frequency band to the base station.
  • the determining unit 32 is specifically configured to detect a usage state of the unlicensed frequency band of the secondary cell, and determine, according to a usage state of the unlicensed frequency band, that the unlicensed frequency band is available.
  • the base station corresponding to the primary cell of the UE before the second base station corresponding to the secondary cell of the UE preempts the unlicensed frequency band, configures the secondary cell to the UE, after the secondary cell preempts the available unlicensed frequency band.
  • the UE can activate the secondary cell and perform RRM measurement, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • FIG. 5 is a schematic structural diagram of still another base station according to an embodiment of the present invention.
  • the base station may perform the action of the second base station in the foregoing embodiment.
  • the base station provided in this embodiment includes: determining unit 41 and sending Unit 42.
  • the determining unit 41 is configured to determine that an unlicensed frequency band is available to the secondary cell, where the base station is a base station corresponding to the secondary cell;
  • the sending unit 42 is configured to send a secondary cell activation command to the user equipment UE, so that the UE activates the secondary cell according to the secondary cell activation command.
  • the sending unit 42 sends the secondary cell activation command to the UE by using the unlicensed frequency band, specifically: the sending unit 42 may directly send the secondary cell activation command to the UE, or the sending unit 42 may correspond to the primary cell of the UE.
  • the base station sends the usage information of the unlicensed frequency band, and the usage information of the unlicensed frequency band includes the busy condition of the unlicensed frequency band, so that the first base station sends the secondary cell activation command to the UE according to the usage information of the unlicensed frequency band, where the first The base station is a base station corresponding to the primary cell, and the first base station uses the licensed frequency band to communicate, and the primary cell provides a service to the UE.
  • the sending unit 42 After the sending unit 42 sends the secondary cell activation command to the UE, the sending unit 42 The method is further configured to: use the unlicensed frequency band to send a pilot signal to the UE, so that the UE performs radio resource management RRM measurement according to the pilot signal.
  • Figure 6 is a flowchart of a communication method according to an embodiment of the present invention.
  • the method provided in this embodiment may be performed by the UE shown in Figure 1.
  • the method provided in this embodiment includes the following steps. :
  • Step 101 The UE receives a secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE, and configures a secondary cell according to the secondary cell configuration command, where the secondary cell configuration command is that the first base station corresponds to the secondary cell.
  • the second base station sends the unlicensed frequency band to the UE before, and the secondary cell configuration command includes an RRM measurement indication, where the RRM measurement indication is used to indicate that the UE receives the cell configuration command and when the secondary cell has an unlicensed frequency band available,
  • the RRM measurement is performed on the secondary cell, the primary cell uses the licensed frequency band communication, and the secondary cell uses the unlicensed frequency band communication.
  • the first base station corresponding to the primary cell of the UE configures the secondary cell for the UE before the base station corresponding to the secondary cell occupies the unlicensed frequency band, and it is clear that the secondary cell can be configured for one or more UEs.
  • the first base station configures a secondary cell for the UE by sending a secondary cell configuration command to the UE, where the secondary cell configuration command includes a Radio Resource Management (RRM) measurement indication, where the RRM measurement indication is used to indicate that the UE is receiving the secondary cell.
  • RRM measurement is not performed immediately after the configuration of the command, but RRM measurement is performed on the secondary cell when the secondary cell has an unlicensed frequency band available.
  • RRM Radio Resource Management
  • the RRM measurement indication is carried in the secondary cell configuration command, mainly because the first base station does not have an available unlicensed frequency band when the secondary cell is configured to the UE, if the UE receives the secondary cell configuration command.
  • the RRM measurement of the secondary cell is performed immediately, and the signal strength of the secondary cell measured by the UE is lower than a threshold, and the first base station deletes the secondary cell. Therefore, in this embodiment, the first base station carries the RRM measurement indication in the secondary cell configuration command, indicating that the secondary cell is not available yet, and after receiving the secondary cell configuration command, the UE does not immediately perform the secondary cell according to the RRM measurement indication.
  • the RRM measures, when the secondary cell has an unlicensed frequency band available, the UE performs RRM measurement on the secondary cell.
  • the secondary cell When the first base station determines that the secondary cell has an unlicensed frequency band, the secondary cell is configured to the UE, and the configuration process needs to occupy a certain time, so that the time for the UE to actually use the unlicensed band communication is reduced, and the configuration is generally configured.
  • the process takes 30-50 milliseconds, so the time for the UE to communicate using the unlicensed band is reduced by 30-50 milliseconds.
  • the first base station configures the secondary cell to the UE before the secondary cell of the UE preempts the unlicensed frequency band.
  • the UE can activate the secondary cell and perform RRM measurement on the secondary cell, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, and increasing the use of the unlicensed frequency band by the UE.
  • the time has increased the use of unlicensed bands.
  • Step 102 When the secondary cell has an unlicensed frequency band, the UE receives the secondary cell activation command sent by the second base station or the first base station, and activates the secondary cell according to the secondary cell activation command.
  • the secondary cell In order for the UE to actually use the secondary cell for communication, the secondary cell must also be activated.
  • the second base station After the second base station preempts the unlicensed frequency band, the second base station directly sends a secondary cell activation command to the UE to notify the UE to activate the secondary cell, or the second base station actively sends the use information of the unlicensed frequency band to the first base station, so that The first base station determines, according to the usage information of the unlicensed frequency band, an unlicensed frequency band that is available to the second base station, and then the first base station sends a secondary cell activation command to the UE.
  • the first base station may also actively query the second base station whether the second base station has an available unlicensed frequency band.
  • the second base station If the second base station has an available unlicensed frequency band, the second base station carries the unauthorized one in the response returned to the first base station.
  • the use information of the frequency band determines the unlicensed frequency band available to the second base station according to the use information of the unlicensed frequency band; or the first base station may also detect the use status of the unlicensed frequency band by itself, and determine the unlicensed frequency band according to the use status of the unlicensed frequency band.
  • the first base station sends a secondary cell activation command to the UE. After the secondary cell is activated, the UE can communicate with the second base station using the unlicensed frequency band.
  • the first base station configures the secondary cell to the UE before the second base station corresponding to the secondary cell preempts the unlicensed frequency band, and after the secondary cell preempts the available unlicensed frequency band, the RRM measurement can be performed. And activating the secondary cell, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • FIG. 7 is a flowchart of another communication method according to an embodiment of the present invention.
  • the method provided in this embodiment may be performed by the UE shown in FIG. 3.
  • the method provided in this embodiment includes the following: Step:
  • Step 201 The UE receives a secondary cell configuration command sent by the first base station corresponding to the primary cell of the UE, and configures the secondary cell according to the secondary cell configuration command.
  • the secondary cell configuration command is sent by the first base station to the UE before the second base station corresponding to the secondary cell is not available.
  • the secondary cell configuration command includes an RRM measurement indication, and the RRM measurement indication is used to indicate that the UE is receiving. Go to the cell configuration command and when the secondary cell has When the unlicensed frequency band is available, the RRM measurement is performed on the secondary cell, the first base station uses the licensed frequency band communication, and the second base station corresponding to the secondary cell uses the unlicensed frequency band communication.
  • Step 202 When the secondary cell has an unlicensed frequency band available, the UE receives the secondary cell activation command sent by the second base station or the first base station, and activates the secondary cell according to the secondary cell activation command.
  • the secondary cell activation command may further include: a maximum allowed uplink transmit power of the UE and/or a pilot transmit power of the secondary cell, so that the UE calculates a power headroom of the UE according to the maximum allowed uplink transmit power, and The path loss between the UE and the second base station is measured according to the pilot transmit power of the secondary cell.
  • the first base station sends the two parameters to the UE when the secondary cell is configured to the UE, and the first base station can be in the secondary cell.
  • the configuration command carries the maximum allowed uplink transmit power of the UE and the pilot transmit power of the cell.
  • the second base station or the first base station needs to resend the two parameters to the UE.
  • the secondary cell activation command may only carry the maximum uplink transmit power of the changed UE, and the UE calculates the power headroom according to the changed maximum uplink transmit power, and calculates The path loss is still calculated according to the pilot transmit power of the pre-configured secondary cell. If only the pilot transmit power of the secondary cell changes, the secondary cell activation command may only carry the pilot transmit power of the changed secondary cell, and the UE calculates the path loss according to the pilot transmit power of the changed secondary cell.
  • the UE calculates the power headroom according to the maximum allowed uplink transmit power of the pre-configured UE. If the maximum allowed uplink transmit power of the UE and the pilot transmit power of the secondary cell are changed, the secondary cell activation command needs to carry the maximum allowed uplink transmit power of the changed UE and the pilot transmit power of the changed secondary cell.
  • the UE calculates the maximum allowed uplink transmit power of the changed UE, and the UE calculates the path loss according to the pilot transmit power of the changed secondary cell. After calculating the path loss, the UE determines whether to trigger the power headroom report according to the path loss.
  • the UE sends a power headroom report to the second base station, or the UE sends the power headroom report to the first base station, where The first base station is forwarded to the second base station.
  • steps 201 and 202 reference may be made to the description of Embodiment 1, and details are not described herein again.
  • Step 203 The UE receives the pilot signal sent by the second base station through the unlicensed frequency band, and performs RRM measurement according to the pilot signal, where the pilot signal is sent to the UE when the second base station determines that the unlicensed frequency band is available.
  • the use of unlicensed band communication generally requires a collision detection and evasive strategy.
  • the second base station Before using the unlicensed band, the second base station detects the idle condition of the unlicensed band, and can only be used when the unlicensed band is idle, if the second base station detects When the unlicensed band is occupied, the detection continues, until the second base station determines that the unlicensed band is available, until the unlicensed band is detected to be idle.
  • the second base station sends a pilot signal to the UE, so that the UE performs RRM measurement according to the pilot signal, and the RRM measurement is mainly used for channel allocation, power control, handover control, and load control.
  • the UE transmits a pilot signal to the UE, and then the UE performs RRM measurement on the secondary cell according to the pilot signal.
  • the UE after configuring the secondary cell, the UE does not detect the pilot of the secondary cell according to the RRM measurement indication in the secondary cell configuration command, and the UE performs the RRM measurement according to the pilot after receiving the activation command.
  • the UE after the UE is configured with the secondary cell, the UE continuously detects the pilot of the secondary cell without conditions, but the UE does not perform RRM measurement.
  • Step 204 The UE sends the channel state information CSI of the secondary cell to the second base during the first uplink transmission.
  • the UE directly sends the channel state information (CSI) of the secondary cell to the second base station when the first uplink is sent.
  • CSI channel state information
  • the UE sends the uplink in the first uplink. Sending CSI to the first base station to forward the CSI to the second base station by the first base station.
  • the UE unconditionally carries the CSI corresponding to the secondary cell, if the secondary cell is activated,
  • the first uplink of the UE is the physical uplink control channel (Physical Uplink Control Channel, PUCCH for short), and the PUCCH is used to transmit the CSI of other secondary cells, regardless of which CSI is used for the secondary cell.
  • the UE sends the PUCCH unconditionally to the second base station to send the CSI corresponding to the secondary cell.
  • the UE sends the channel state information CSI of the secondary cell to the second base station when the first uplink is sent, so that the UE can
  • the CSI of the secondary cell is sent to the second base station in time, so that the second base station can reasonably schedule the UE according to the CSI of the secondary cell, thereby improving resource usage efficiency.
  • the CSI of the secondary cell includes a Channel Quality Indicator (CQI).
  • the first base station corresponding to the primary cell of the UE before the second base station corresponding to the secondary cell of the UE, preempts the unlicensed frequency band, configures the secondary cell to the UE, and preempts the available non-authorized in the secondary cell.
  • the UE can perform RRM measurement and activate the secondary cell, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • the UE determines that the secondary cell is deactivated, or determines that the secondary cell is deactivated when the UE receives the secondary cell shutdown notification message.
  • the secondary cell shutdown notification message may be sent by the first base station or the second base station, and report a link failure of the UE to a Radio Resource Control (RRC) entity. After the link failure, the UE does not initiate a random connection. Access process.
  • RRC Radio Resource Control
  • the UE may also measure Received Signal Strength Indication (RSSI).
  • RSSI Received Signal Strength Indication
  • the UE may determine whether other devices are currently using the unlicensed frequency band by measuring the RSSI, if the UE measures the RSSI. If it is increased, it indicates that other devices are using the unlicensed band. If the RSSI measured by the UE is decreased, the other devices are not using the unlicensed band.
  • FIG. 8 is a flowchart of still another communication method according to an embodiment of the present invention.
  • the method provided in this embodiment may be performed by the base station shown in FIG. 4.
  • the base station is hereinafter referred to as a first base station.
  • the method provided in this embodiment includes the following steps:
  • Step 301 The first base station sends a secondary cell configuration command to the UE, where the second cell configuration command is used to instruct the UE to configure the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate that the UE receives the secondary cell configuration command. And when the secondary cell has an unlicensed frequency band, the RRM measurement is performed on the secondary cell, where the first base station is the base station corresponding to the primary cell, the primary cell uses the licensed frequency band communication, and the secondary cell uses the unlicensed frequency band communication, and the primary cell uses the primary cell to the UE. Provide services.
  • Step 302 The first base station determines that an unlicensed frequency band is available to the secondary cell.
  • the first base station determines that the unlicensed frequency band in which the secondary cell is idle can be used, specifically: the first base station receives the use information of the unlicensed frequency band sent by the second base station, and the second base station is the base station corresponding to the secondary cell, and the use information of the unlicensed frequency band Including the idle condition of the unlicensed frequency band, the first base station determines whether the unlicensed frequency band is available according to the usage information of the unlicensed frequency band; if the unlicensed frequency band is idle, the first base station determines that the unlicensed frequency band is available.
  • the second base station after the second base station preempts the unlicensed frequency band, the second base station actively sends the usage information of the unlicensed frequency band to the first base station.
  • the first base station periodically actively queries the second base station whether the second base station has an available unlicensed frequency band, and if the second base station preempts the unlicensed frequency band, returns the unlicensed frequency band to the first base station. Use information.
  • the first base station may detect the use status of the unlicensed frequency band of the secondary cell by itself, and determine whether the unlicensed frequency band is available according to the use status of the unlicensed frequency band.
  • Step 303 When the secondary cell has an unlicensed frequency band available, the first base station sends a secondary cell activation command to the UE to activate the secondary cell.
  • the first base station corresponding to the primary cell of the UE before the second base station corresponding to the secondary cell of the UE, preempts the unlicensed frequency band, configures the secondary cell to the UE, and preempts the available non-authorized in the secondary cell.
  • the UE can perform RRM measurement and activate the secondary cell, thereby reducing the time for configuring the unlicensed frequency band occupied by the secondary cell, increasing the time for the UE to use the unlicensed frequency band communication, and improving the usage rate of the unlicensed frequency band.
  • FIG. 9 is a flowchart of still another communication method according to an embodiment of the present invention.
  • the method provided in this embodiment may be performed by the base station shown in FIG. 5.
  • the base station is hereinafter referred to as a second base station.
  • the method provided in this embodiment includes the following steps:
  • Step 401 The second base station determines that the secondary cell has an unlicensed frequency band, and the second base station is a base station corresponding to the secondary cell.
  • Step 402 The second base station sends a secondary cell activation command to the UE, so that the UE activates the secondary cell according to the secondary cell activation command.
  • the second base station sends the secondary cell activation command to the UE by using the unlicensed frequency band, specifically: the second base station may directly send the secondary cell activation command to the UE, or the second base station sends the unlicensed frequency band to the first base station.
  • the usage information of the unlicensed frequency band includes a busy condition of the unlicensed frequency band, so that the first base station sends a secondary cell activation command to the UE according to the usage information of the unlicensed frequency band, where the first base station is the base station corresponding to the primary cell,
  • the primary cell provides services to the UE, and the first base station communicates using licensed bands.
  • the step 402 may further include the following steps: the second base station sends the pilot signal to the UE by using the unlicensed frequency band, so that the UE performs the pilot signal according to the pilot signal. RRM measurement.
  • FIG. 10 is a signaling flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 10, the method provided in this embodiment includes the following steps:
  • Step 501 The first base station sends a secondary cell configuration command to the UE, where the secondary cell configuration command includes the RRM.
  • the first base station sends the secondary cell configuration command to the UE before the second base station corresponding to the secondary cell of the UE has no available unlicensed frequency band, the secondary cell configuration command is used to configure the secondary cell for the UE, and the secondary cell configuration command includes the wireless resource.
  • the RRM measurement indication is used to indicate that the UE receives the secondary cell configuration command, and when the secondary cell has an available unlicensed frequency band, performs RRM measurement on the secondary cell, where the primary cell uses the licensed frequency band communication, The cell uses unlicensed band communication.
  • Step 502 After receiving the secondary cell configuration command, the UE does not immediately perform RRM measurement according to the RRM measurement indication.
  • Step 503 The second base station determines that there is an unlicensed frequency band that can also be used.
  • Step 504 The second base station sends the usage information of the unlicensed frequency band to the first base station.
  • Step 505 The first base station determines, according to the usage information of the unlicensed frequency band, an unlicensed frequency band that is available to the second base station.
  • Step 506 The first base station sends a secondary cell activation command to the UE, where the secondary cell activation command is used to activate the secondary cell.
  • Step 507 The UE activates the secondary cell according to the secondary cell activation command.
  • Step 508 The second base station sends a pilot signal to the UE by using an unlicensed frequency band.
  • Step 509 The UE performs RRM measurement on the secondary cell according to the pilot signal.
  • the UE After the UE activates the secondary cell, the UE can communicate with the second base station using the unlicensed frequency band.
  • FIG. 11 is a schematic structural diagram of still another user equipment according to an embodiment of the present invention.
  • the user equipment 500 provided in this embodiment includes: at least one processor 51, a memory 52, at least one network interface 53, and at least A communication bus 54, which is used to implement connection communication between these components.
  • the processor 51 is operative to execute executable instructions, such as computer programs, stored in the memory 52.
  • Memory 52 may contain high speed random access memory (RAM: Random Access Memory) may also include non-volatile memory, such as at least one disk storage.
  • User equipment 500 implements a communication connection with at least one other network element via at least one network interface 53, which may be wired or wireless.
  • the memory 52 stores programs
  • the processor 51 executes programs stored in the memory 52 for performing the following operations:
  • the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate that the UE is receiving Performing RRM measurement on the secondary cell when the secondary cell configuration command is available, and when the secondary cell has an available unlicensed frequency band, the primary cell uses the licensed frequency band to communicate, and the secondary cell uses the unlicensed frequency band to communicate;
  • the processor 51 After the processor 51 activates the secondary cell according to the secondary cell activation command, the processor 51 is further configured to: receive a pilot signal that is sent by the second base station by using the unlicensed frequency band, according to the pilot The signal performs the RRM measurement, where the pilot signal is sent by the UE after the second base station determines that the unlicensed frequency band is available.
  • the processor 51 is further configured to send the channel state information CSI of the secondary cell to the second base during the first uplink transmission.
  • the method is specifically configured to: when the first uplink transmission is sent, send the CSI to the first base station, Transmitting the CSI to the second base station by using the first base station.
  • the secondary cell activation command further includes: a maximum allowed uplink transmission power of the UE and/or a pilot transmission power of the secondary cell; the processor 51 is further configured to: according to the maximum allowed uplink Transmit power calculates a power headroom of the UE, and measures a path loss between the UE and the second base station according to a pilot transmit power of the secondary cell.
  • the processor 51 is further configured to: when the UE detects that the secondary cell fails to generate a radio link, or after receiving the secondary cell relationship notification message sent by the first base station or the second base station, The secondary cell is deactivated. After the processor 51 determines that the secondary cell is deactivated, The processor 51 is further configured to: re-detect a power headroom of the UE, and trigger a power headroom report, so that the first base station adjusts an uplink transmit power of the UE according to the power headroom.
  • the user equipment provided in this embodiment may be used to perform the methods shown in FIG. 6 and FIG. 7.
  • the specific implementation manners and technical effects are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of still another base station according to an embodiment of the present invention.
  • the base station may perform the action of the first base station in the foregoing embodiment.
  • the base station 600 provided in this embodiment includes: a processor 61.
  • the memory 62, the transmitter 64, the memory 62 and the transmitter 64 are connected to the processor 61 via a bus, wherein the memory 62 is used to store instructions, and when the base station 600 is in operation, the memory 62 communicates with the processor 61, causing the base station 600 to execute The communication method provided by the present invention.
  • a transmitter 64 configured to send a secondary cell configuration command to the UE, to indicate that the UE configures the secondary cell, where the secondary cell configuration command includes a radio resource management RRM measurement indication, where the RRM measurement indication is used to indicate the The UE performs RRM measurement on the secondary cell when the secondary cell configuration command is received, and when the secondary cell has an available unlicensed frequency band, where the base station is a base station corresponding to the primary cell, and the primary cell is used by the primary cell.
  • Authorized frequency band communication the secondary cell uses an unlicensed frequency band communication, and the primary cell provides a service to the UE;
  • the processor 61 is configured to determine that an unlicensed frequency band is available to the secondary cell;
  • the transmitter 64 is further configured to: when the secondary cell has an unlicensed frequency band available, send a secondary cell activation command to the UE, to activate the secondary cell.
  • the base station 600 provided in this embodiment further includes: a receiver 63, configured to receive usage information of the unlicensed frequency band sent by the second base station, where the second base station is a base station corresponding to the secondary cell.
  • the processor 61 is specifically configured to: determine, according to the usage information of the unlicensed frequency band, whether the unlicensed frequency band is available; if the unlicensed frequency band is idle, determine that the unlicensed frequency band is available.
  • the processor 61 detects a usage status of the unlicensed frequency band of the secondary cell, and determines that the unlicensed frequency band is available according to a usage status of the unlicensed frequency band.
  • the base station provided in this embodiment may be used to perform the method shown in FIG. 8.
  • the specific implementation manners and technical effects are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of still another base station according to an embodiment of the present invention.
  • the base station may perform the action of the second base station in the foregoing embodiment.
  • the base station 700 provided in this embodiment includes: a processor 71.
  • Memory 72, transmitter 74, memory 72 and transmitter 74 pass The bus is coupled to the processor 71, wherein the memory 72 is for storing instructions, and when the base station 700 is running, the memory 72 communicates with the processor 71, causing the base station 700 to perform the communication method provided by the present invention.
  • the processor 71 is configured to determine that an unlicensed frequency band is available to the secondary cell, where the base station is a base station corresponding to the secondary cell;
  • a transmitter 74 configured to send, when the processor 71 determines that the secondary cell has an unlicensed frequency band, send a secondary cell activation command to the UE, to enable the UE to activate the according to the secondary cell activation command.
  • Secondary cell configured to send, when the processor 71 determines that the secondary cell has an unlicensed frequency band, send a secondary cell activation command to the UE, to enable the UE to activate the according to the secondary cell activation command.
  • the transmitter 74 is specifically configured to: send the usage information of the unlicensed frequency band to the first base station, so that the first base station sends the secondary cell activation command to the UE according to the usage information of the unlicensed frequency band.
  • the first base station is a base station corresponding to the primary cell, and the primary cell provides a service to the UE.
  • the transmitter 74 After the transmitter 74 sends a secondary cell activation command to the UE, the transmitter 74 is further configured to: use the unlicensed frequency band to send a pilot signal to the UE, so that the UE according to the pilot The signal is used for radio resource management RRM measurements.
  • This embodiment provides a base station, which can be used to perform the method shown in FIG. 9.
  • the specific implementation is similar to the technical effect, and details are not described herein again.

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Abstract

本发明实施例提供的通信方法、用户设备和基站,包括:UE接收UE的主小区对应的第一基站发送的辅小区配置命令,根据所述辅小区配置命令为所述UE配置辅小区,其中,所述辅小区配置命令是所述第一基站在所述辅小区对应的第二基站还没有可用的非授权频段之前向所述UE发送的,所述主小区使用授权频段通信,所述辅小区使用非授权频段通信;所述UE接收所述第二基站或所述第一基站发送的辅小区激活命令以激活所述辅小区。上述方法,第一基站通过在辅小区对应的第二基站抢占到非授权频段之前,将该辅小区配置给UE,从而减少了配置辅小区所占用非授权频段的时间,增加了UE使用非授权频段通信的时间。

Description

通信方法、 用户设备和基站
技术领域
本发明涉及通信技术, 尤其涉及一种通信方法、 用户设备和基站。 背景技术
无线通信需要使用频率资源, 频率资源被划分为授权(License )频段 和非授权 (unlicense ) 频段。 其中, 授权频段是指授权给特定的运营商用 于开展无线应用的频段, 授权频段只有拥有使用权的运营商才能够使用, 其它个人与组织则不能使用该授权频段进行无线通信。 非授权频段没有授 权给特定运营商,任何人无需交费都可以使用非授权频段进行通信。目前, 非授权频段主要分布在 2.4GHz及 5GHz附近, 非授权频段广泛应用于微 波炉、 医疗设备及无线局域网中。
随着长期演进系统 (Long Term Evolution, 简称 LTE) 的普及, 用户 的无线通信数据量越来越大, 运营商所购买的频率资源日益紧张, 为了降 低频率资源的使用费用, 运营商着手开发非授权频段, 即利用非授权频段 组建一些 LTE小区, 以下将使用非授权频段组建的 LTE小区称为非授权 小区, 将使用授权频段组建的小区称为授权小区。
LTE系统中, 引入了载波聚合 (Carrier Aggregation, 简称 CA ) 技术 以提升用于设备(User Equipment, 简称 UE )的峰值速率。在 CA系统中, 基站可以为 UE配置一个主小区和多个辅小区, 主小区使用主载波通信, 辅小区使用辅载波通信, UE在使用主载波通信的同时也可以使用辅载波 进行通信, 从而支持高速数据传输, 但是, 现有技术中辅载波通常情况下 使用授权频段, 为了降低运营商的成本, 如何提高载波聚合场景中非授权 频段的使用效率成了运营商急需解决的一个问题。 发明内容
本发明实施提供一种通信方法、 用户设备和基站, 能够提高非授权频段 的使用效率。 本发明第一方面提供一种用户设备 UE, 包括:
接收单元, 用于接收所述 UE的主小区对应的第一基站发送的辅小区配 置命令;
配置单元, 用于根据所述接收单元接收的所述辅小区配置命令为所述 UE 配置辅小区, 其中, 所述辅小区配置命令是所述第一基站在所述辅小 区对应的第二基站没有可用的非授权频段之前向所述 UE发送的, 所述辅 小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用 于指示所述 UE在接收到所述辅小区配置命令且当所述辅小区有可用的非 授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权频段通 信, 所述辅小区使用非授权频段通信;
所述接收单元还用于, 当所述辅小区有可用的非授权频段时, 接收所 述第二基站或所述第一基站发送的辅小区激活命令;
激活单元, 用于根据所述接收单元接收的所述辅小区激活命令激活所 述辅小区。
在本发明第一方面的第一种可能的实现方式中, 所述 UE还包括: 测 量单元;
所述接收单元还用于: 接收所述第二基站使用所述非授权频段发送的 导频信号;
所述测量单元, 用于根据所述导频信号进行所述 RRM测量, 所述导 频信号为所述第二基站确定所述非授权频段可用后, 向所述 UE发送的。
在本发明第一方面的第二种可能的实现方式中, 所述 UE还包括: 发送单元, 用于所述 UE在第一次上行发送时向所述第二基发送所述 辅小区的信道状态信息 CSI。
在本发明第一方面的第三种可能的实现方式中, 所述发送单元具体用 于:
在第一次上行发送时向所述第一基站发送所述 CSI, 以通过所述第一 基站将所述 CSI转发给所述第二基站。
在本发明第一方面的第四种可能的实现方式中, 所述辅小区激活命令 中还包括:
所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率; 所述 UE还包括计算单元, 用于:
根据所述最大允许上行发送功率计算所述 UE的功率余量;
根据所述辅小区的导频发射功率测量所述 UE与所述第二基站之间的 路损。
在本发明第一方面的第五种可能的实现方式中, 所述 UE还包括: 检测单元: 用于检测所述辅小区是否发生无线链路失败;
当所述检测单元检测到所述辅小区发生无线链路失败时, 所述激活单 元还用于: 确定所述辅小区去激活。
在本发明第一方面的第六种可能的实现方式中, 所述计算单元, 还用 于:
在所述激活单元确定所述辅小区去激活之后, 所述 UE重新检测所述 UE 的功率余量, 并触发功率余量上报, 以使所述第一基站根据所述功率 余量调整所述 UE的上行发射功率。
本发明第二方面提供一种基站, 所述基站为第一基站, 包括:
发送单元,用于向用户设备 UE发送辅小区配置命令, 以指示所述 UE 配置所述辅小区,所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令且当 所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述第一基站为主小区对应的基站, 所述主小区使用授权频段通信, 所述 辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
确定单元, 用于确定所述辅小区有可用的非授权频段;
所述发送单元还用于: 当所述辅小区有可用的非授权频段时, 向所述 UE发送辅小区激活命令, 用于激活所述辅小区。
在本发明第二方面的第一种可能的实现方式中, 所述基站还包括: 接收单元, 用于接收第二基站发送的所述非授权频段的使用信息, 所 述第二基站为所述辅小区对应的基站;
所述确定单元具体用于: 根据所述非授权频段的使用信息确定所述非 授权频段是否可用;
若所述非授权频段空闲, 则确定所述非授权频段可用。
在本发明第二方面的第二种可能的实现方式中, 所述确定单元具体用 于:
检测所述辅小区的所述非授权频段的使用状态, 根据所述非授权频段 的使用状态确定所述非授权频段可用。
本发明第三方面提供一种基站, 所述基站为第二基站, 包括: 确定单元, 用于确定辅小区有可用的非授权频段, 所述第二基站为所述 辅小区对应的基站;
发送单元, 用于向用户设备 UE发送辅小区激活命令, 以使所述 UE根 据所述辅小区激活命令激活所述辅小区。
在本发明第三方面的第一种可能的实现方式中, 所述发送单元具体用 于:
向第一基站发送所述非授权频段的使用信息, 以使所述第一基站根据 所述非授权频段的使用信息向所述 UE 发送所述辅小区激活命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提供服务。
结合本发明第三方面以及第三方面的第一种可能的实现方式, 在本发 明第三方面的第二种可能的实现方式中,所述发送单元向所述 UE发送辅小 区激活命令之后, 所述发送单元还用于:
使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述 导频信号进行无线资源管理 RRM测量。
本发明第四方面提供一种用户设备 UE, 包括: 处理器、 存储器和网络 接口, 所述处理器用于执行所述存储器中存储的可执行指令, 所述网络接口 用于所述 UE与其他网元之间的通信连接;
所述处理器用于执行以下操作:
接收所述 UE的主小区对应的第一基站发送的辅小区配置命令, 根据所 述辅小区配置命令为所述 UE配置辅小区, 其中, 所述辅小区配置命令是 所述第一基站在所述辅小区对应的第二基站没有可用的非授权频段之前 向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指 示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令 且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权频段通信, 所述辅小区使用非授权频段通信;
当所述辅小区有可用的非授权频段时, 接收所述第二基站或所述第一 基站发送的辅小区激活命令, 根据所述辅小区激活命令激活所述辅小区。 在本发明第四方面的第一种可能的实现方式中, 所述处理器在根据所 述辅小区激活命令激活所述辅小区之后, 还用于:
接收所述第二基站使用所述非授权频段发送的导频信号, 根据所述导 频信号进行所述 RRM测量, 所述导频信号为所述第二基站确定所述非授 权频段可用后, 向所述 UE发送的。
在本发明第四方面的第二种可能的实现方式中, 所述处理器还用于: 在第一次上行发送时向所述第二基发送所述辅小区的信道状态信息
CSI。
在本发明第四方面的第三种可能的实现方式中, 所述处理器在第一次 上行发送时向所述第二基发送所述辅小区的信道状态信息 CSI时, 具体用 于:
在第一次上行发送时向所述第一基站发送所述 CSI, 以通过所述第一 基站将所述 CSI转发给所述第二基站。
在本发明第四方面的第四种可能的实现方式中, 所述辅小区激活命令 中还包括:
所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率; 所述处理器还用于, 根据所述最大允许上行发送功率计算所述 UE的 功率余量, 以及根据所述辅小区的导频发射功率测量所述 UE与所述第二 基站之间的路损。
在本发明第四方面的第五种可能的实现方式中, 所述处理器还用于: 当所述 UE检测到所述辅小区发生无线链路失败时, 确定所述辅小区 去激活。
在本发明第四方面的第六种可能的实现方式中, 所述处理器确定所述 辅小区去激活之后, 还用于:
重新检测所述 UE的功率余量, 并触发功率余量上报, 以使所述第一 基站根据所述功率余量调整所述 UE的上行发射功率。
本发明第五方面提供一种基站, 所述基站为第一基站, 包括:
发射器, 用于向用户设备 UE发送辅小区配置命令, 以指示所述 UE 配置所述辅小区, 所述辅小区配置命令中包括无线资源管理 RRM测量指 示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令 且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中,所述第一基站为主小区对应的基站,所述主小区使用授权频段通信, 所述辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
处理器, 用于确定所述辅小区有可用的非授权频段;
所述发射器还用于, 当所述辅小区有可用的非授权频段时, 向所述 UE发送辅小区激活命令, 用于激活所述辅小区。
在本发明第五方面的第一种可能的实现方式中, 还包括:
接收器, 用于接收第二基站发送的所述非授权频段的使用信息, 所述 第二基站为所述辅小区对应的基站;
所述处理器具体用于: 根据所述非授权频段的使用信息确定所述非授 权频段是否可用;
若所述非授权频段空闲, 则确定所述非授权频段可用。
在本发明第五方面的第二种可能的实现方式中, 所述处理器具体用 于:
检测所述辅小区的所述非授权频段的使用状态, 根据所述非授权频段 的使用状态确定所述非授权频段可用。
本发明第六方面提供一种基站, 所述基站为第二基站, 包括:
处理器, 用于确定辅小区有可用的非授权频段, 所述第二基站为所述辅 小区对应的基站;
发射器, 用于在所述处理器确定所述辅小区有可用的非授权频段时, 向 所述 UE发送辅小区激活命令, 以使所述 UE根据所述辅小区激活命令激 活所述辅小区。
在本发明第六方面的第一种可能的实现方式中,所述发射器具体用于: 向第一基站发送所述非授权频段的使用信息, 以使所述第一基站根据 所述非授权频段的使用信息向所述 UE 发送所述辅小区激活命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提供服务。
结合本发明第六方面以及第六方面的第一种可能的实现方式, 在本发 明第六方面的第二种可能的实现方式中, 所述发射器向所述 UE 发送辅小 区激活命令之后, 所述发射器还用于: 使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述 导频信号进行无线资源管理 RRM测量。
本发明第七方面提供一种通信方法, 包括:
用户设备 UE接收所述 UE的主小区对应的第一基站发送的辅小区配置 命令, 根据所述辅小区配置命令为所述 UE配置辅小区, 其中, 所述辅小 区配置命令是所述第一基站在所述辅小区对应的第二基站没有可用的非 授权频段之前向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小 区配置命令且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM 测量, 所述主小区使用授权频段通信, 所述辅小区使用非授权频段 通信;
当所述辅小区有可用的非授权频段时, 所述 UE接收所述第二基站或 所述第一基站发送的辅小区激活命令, 根据所述辅小区激活命令激活所述 辅小区。
在本发明第七方面的第一种可能的实现方式中, 所述 UE接收所述第 二基站或所述第一基站发送的辅小区激活命令, 根据所述辅小区激活命令 激活所述辅小区之后, 还包括:
所述 UE接收所述第二基站使用所述非授权频段发送的导频信号, 根 据所述导频信号进行所述 RRM测量, 所述导频信号为所述第二基站确定 所述非授权频段可用后, 向所述 UE发送的。
在本发明第七方面的第二种可能的实现方式中, 所述 UE接收所述第 二基站或所述第一基站发送的辅小区激活命令之后, 还包括:
所述 UE在第一次上行发送时向所述第二基发送所述辅小区的信道状 态信息 CSI。
在本发明第七方面的第三种可能的实现方式中, 所述 UE在第一次上 行发送时向所述第二基站发送所述辅小区的信道状态信息 CSI, 包括: 所述 UE在第一次上行发送时向所述第一基站发送所述 CSI, 以通过 所述第一基站将所述 CSI转发给所述第二基站。
在本发明第七方面的第四种可能的实现方式中, 所述辅小区激活命令 中还包括: 所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率, 以使所述 UE根据所述最大允许上行发送功率计算所述 UE的功率余量, 以及根据所述辅小区的导频发射功率测量所述 UE与所述第二基站之间的 路损。
在本发明第七方面的第五种可能的实现方式中, 还包括:
当所述 UE检测到所述辅小区发生无线链路失败时, 则所述 UE确定 所述辅小区去激活。
在本发明第七方面的第六种可能的实现方式中, 所述 UE确定所述辅 小区去激活之后, 还包括:
所述 UE重新检测所述 UE的功率余量, 并触发功率余量上报, 以使 所述第一基站根据所述功率余量调整所述 UE的上行发射功率。
本发明第八方面提供一种通信方法, 包括:
第一基站向用户设备 UE发送辅小区配置命令, 用于指示所述 UE配 置所述辅小区,所述辅小区配置命令中包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令且当 所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述第一基站为主小区对应的基站, 所述主小区使用授权频段通信, 所述 辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
所述第一基站确定所述辅小区有可用的非授权频段;
当所述辅小区有可用的非授权频段时, 所述第一基站向所述 UE发送 辅小区激活命令, 用于激活所述辅小区。
在本发明第八方面的第一种可能的实现方式中, 所述第一基站确定所 述辅小区有可用的非授权频段, 包括:
所述第一基站接收第二基站发送的所述非授权频段的使用信息, 所述 第二基站为所述辅小区对应的基站;
所述第一基站根据所述非授权频段的使用信息确定所述非授权频段 是否可用;
若所述非授权频段空闲, 则所述第一基站确定所述非授权频段可用。 在本发明第八方面的第二种可能的实现方式中, 所述第一基站确定所 述辅小区有可用的非授权频段, 包括: 所述第一基站检测所述辅小区的所述非授权频段的使用状态, 根据所 述非授权频段的使用状态确定所述非授权频段可用。
本发明第九方面提供一种通信方法, 包括:
第二基站确定辅小区有可用的非授权频段, 所述第二基站为所述辅小区 对应的基站;
所述第二基站向用户设备 UE发送辅小区激活命令, 以使所述 UE根据 所述辅小区激活命令激活所述辅小区。
在本发明第九方面的第一种可能的实现方式中, 所述第二基站向所述 UE发送辅小区激活命令, 包括:
所述第二基站向第一基站发送所述非授权频段的使用信息, 以使所述 第一基站根据所述非授权频段的使用信息向所述 UE发送所述辅小区激活 命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提 供服务。
结合本发明第九方面以及第九方面的第一种可能的实现方式, 在本发 明第九方面的第二种可能的实现方式中,所述第二基站向所述 UE发送辅小 区激活命令之后, 还包括:
所述第二基站使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述导频信号进行无线资源管理 RRM测量。
本发明实施例提供的一种通信方法、 用户设备和基站, 第一基站通过 在辅小区对应的第二基站抢占到非授权频段之前,将该辅小区配置给 UE, 在辅小区抢占到可用的非授权频段之后, 就可以进行 RRM测量以及激活 该辅小区, 从而减少了配置辅小区所占用非授权频段的时间, 增加了 UE 使用非授权频段通信的时间, 提高了非授权频段的使用率。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见 地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。 图 1为本发明实施例提供的一种用户设备的结构示意图; 图 2为现有技术的非授权小区的配置示意图;
3为本发明实施例提供的另一种用户设备的结构示意图;
图 4为本发明实施例提供的一种基站的结构示意图;
图 5为本发明实施例提供的另一种基站的结构示意图;
图 6为本发明实施例提供的一种通信方法的流程图;
图 7为本发明实施例提供的另一种通信方法的流程图;
图 8为本发明实施例提供的又一种通信方法的流程图;
图 9为本发明实施例提供的还一种通信方法的流程图;
图 10为本发明实施例提供的一种通信方法的信令流程图;
图 11为本发明实施例提供的又一种用户设备的结构示意图; 图 12为本发明实施例提供的又一种基站的结构示意图;
图 13为本发明实施例提供的还一种第二基站的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然,所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明各实施例提供的通信方法,可以应用于 LTE系统和通用移动通 信系统 ( Universal Mobile Telecommunications System, 简禾尔 UMTS ) , 当 所述通信方法应用在 LTE系统中时,基站为演进型基站(evolved Node B, 简称 eNB )。UE可以为移动终端,例如手机、 PAD ( personal digital assistant, 个人数字助理) 。 本发明各实施例中提到的主小区和辅小区是对每个 UE 而言的, 如第一 UE的主小区可能是第二 UE的辅小区, 第一 UE的辅小 区可能是第二 UE的主小区。 另外, 同一个 UE的主小区对应的第一基站 和辅小区对应的第二基站只是逻辑上的划分, 第一基站和第二基站可能是 实体上的同一个基站, 也可能是实体上的两个不同基站。
图 1为本发明实施例提供的一种用户设备的结构示意图,如图 1所示, 本实施例提供的用户设备包括:接收单元 11、配置单元 12和激活单元 13。 其中, 接收单元 11, 用于接收所述 UE的主小区对应的第一基站发送的 辅小区配置命令;
配置单元 12, 用于根据所述接收单元 11接收的所述辅小区配置命令 为所述 UE配置辅小区, 其中, 所述辅小区配置命令是所述第一基站在所 述辅小区对应的第二基站没有可用的非授权频段之前向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量 指示用于指示所述 UE在接收到所述辅小区配置命令且当所述辅小区有可 用的非授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权 频段通信, 所述辅小区使用非授权频段通信;
所述接收单元 11 还用于, 当所述辅小区有可用的非授权频段时, 接 收所述第二基站或所述第一基站发送的辅小区激活命令;
激活单元 13, 用于根据所述接收单元 11接收的所述辅小区激活命令 激活所述辅小区。
本实施例中, UE 的主小区对应的第一基站在辅小区对应的第二基站 占用非授权频段之前, 为该 UE配置辅小区, 需明确的是该辅小区可以配 置给一个或多个 UE。第一基站通过向 UE发送辅小区配置命令为 UE配置 辅小区, 辅小区配置命令中包括无线资源管理 ( Radio Resource Management, 简称 RRM)测量指示, 该 RRM测量指示用于指示 UE在接 收到辅小区配置命令后不立即进行 RRM测量, 而是当所述辅小区有可用 的非授权频段时才对辅小区进行 RRM测量。
由于非授权频段的开放性, 非授权小区的基站必须不断检测非授权频 段的忙闲情况, 如果非授权频段被其他设备占用, 则基站继续检测, 直到 基站检测到该非授权频段空闲,非授权小区才能使用该非授权频段,因此, 非授权小区在时间上是不连续的。 LTE系统中, 引入了载波聚合 (Carrier Aggregation, 简称 CA)技术以提升 UE的峰值速率。 在 CA系统中, 基站 可以为 UE配置一个主小区和多个辅小区, 主小区使用主载波通信, 辅小 区使用辅载波通信, UE 在使用主载波通信的同时也可以使用辅载波进行 通信, 从而支持高速数据传输。 一种方式是, 基站一旦为 UE配置了辅小 区, UE立刻开始对辅载波进行 RRM。而此时如果辅小区使用非授权频段, 该辅小区还没有可用的非授权频段, 如果 UE接收到辅小区配置命令后立 即对该辅小区进行 RRM测量, 会导致 UE测量到的该辅小区的信号强度 低于门限, 第一基站会将该辅小区删掉。 所以, 本实施例中第一基站在辅 小区配置命令中携带 RRM测量指示, 指示 UE该辅小区现在还不可用, UE接收到辅小区配置命令后, 根据 RRM测量指示, 不立即对辅小区进行 RRM测量, 在辅小区有可用的非授权频段时, UE对辅小区进行 RRM测 当第一基站在确定辅小区有可用的非授权频段后, 才将辅小区配置给 UE时, 由于配置流程会占用一定的时间, 使得 UE真正使用非授权频段 通信的时间减少,一般情况下配置流程需要占用 30-50毫秒的时间, 因此, 会使 UE使用非授权频段通信的时间减少 30-50毫秒的时间。如图 2所示, 网络侧确定非授权小区有空闲非授权频段时, 将非授权小区配置给 UE作 为辅小区, UE接收到命令后开始 RRM测量。 测量完成之后, 网络侧向 UE发送激活命令以激活该辅小区, 激活后经过一段时延, UE才可真正使 用非授权以小区进行通信。通常非授权小区能够使用非授权频段的时间一 般为几百毫秒。 由于网络侧从非授权小区的配置、 激活再到 UE真正使用 非授权频段之间会有 50-60毫秒的时间,使得非授权频段的使用时间减少, 造成非授权频段资源浪费。本实施例中,在辅小区抢占到非授权频段之前, 第一基站就将辅小区配置给 UE, 使得 UE在辅小区抢占到非授权频段之 后, 就可以激活该辅小区并对该辅小区进行 RRM测量, 从而减少了配置 辅小区所占用的非授权频段的时间, 增加了 UE使用非授权频段通信的时 间, 提高了非授权频段的使用率。
UE要真正使用辅小区进行通信,还必须激活该辅小区。在第二基站抢占 到非授权频段之后,第二基站直接向 UE发送辅小区激活命令,通知 UE激活 该辅小区; 或者, 第二基站主动向第一基站发送非授权频段的使用信息, 以使第一基站根据非授权频段的使用信息确定第二基站有可用的非授权 频段, 然后, 第一基站向 UE发送辅小区激活命令。 当然, 第一基站也可 以主动向第二基站询问第二基站是否有可用的非授权频段, 如果第二基站有 可用的非授权频段, 第二基站在向第一基站返回的响应中携带非授权频段的 使用信息, 第一基站根据非授权频段的使用信息确定第二基站有可用的非 授权频段; 或者, 第一基站也可以自己检测非授权频段的使用状态, 根据 非授权频段的使用状态确定非授权频段可用, 然后, 第一基站向 UE发送 辅小区激活命令。 在辅小区被激活之后, UE 就可以使用非授权频段与第 二基站通信。
本实施例提供的 UE, 配置单元根据接收单元接收的辅小区配置命令 为 UE配置辅小区, 其中, 所述辅小区配置命令是所述第一基站在所述辅 小区对应的第二基站还没有可用的非授权频段之前向所述 UE发送的, 由 于 UE在辅小区对应的第二基站抢占到非授权频段之前, 已经配置好了辅 小区, 在辅小区抢占到可用的非授权频段之后, UE 就可以激活该辅小区 并进行 RRM测量, 从而减少了配置辅小区所占用非授权频段的时间, 增 加了 UE使用非授权频段通信的时间, 提高了非授权频段的使用率。
3为本发明实施例提供的另一种用户设备的结构示意图, 该用户设 备为图 1所示的用户设备的进一歩描述。 如图 3所示, 本实施例提供的用 户设备包括: 接收单元 21、 配置单元 22和激活单元 23。
其中, 接收单元 21, 用于接收所述 UE的主小区对应的第一基站发送的 辅小区配置命令;
配置单元 22, 用于根据所述接收单元 21接收的所述辅小区配置命令 为所述 UE配置辅小区, 其中, 所述辅小区配置命令是所述第一基站在所 述辅小区对应的第二基站没有可用的非授权频段之前向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量 指示用于指示所述 UE在接收到所述辅小区配置命令且当所述辅小区有可 用的非授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权 频段通信, 所述辅小区使用非授权频段通信;
所述接收单元 21 还用于, 当所述辅小区有可用的非授权频段时, 接 收所述第二基站或所述第一基站发送的辅小区激活命令;
激活单元 23, 用于根据所述接收单元 21接收的所述辅小区激活命令 激活所述辅小区。
进一歩地, 本实施例提供的 UE还可以包括测量单元 24, 在激活单元 23根据所述辅小区激活命令激活所述辅小区之后, 所述接收单元 21还用 于: 接收所述第二基站使用所述非授权频段发送的导频信号; 所述测量单 元 24, 用于根据所述导频信号进行所述 RRM测量, 所述导频信号为所述 第二基站确定所述非授权频段可用后, 向所述 UE发送的。
如果第二基站要使用非授权频段通信一般需要采用冲突检测和规避 的策略, 在使用非授权频段之前, 检测非授权频段的忙闲情况, 只有在非 授权频段空闲时才可以使用, 如果第二基站检测到非授权频段被占用, 则 会继续检测, 直到检测到非授权频段空闲时, 第二基站确定有可用的非授 权频段。 第二基站向 UE发送导频信号, 以使 UE根据导频信号进行 RRM 测量, RRM 测量的目的主要是用于信道分配、 功率控制、 切换控制、 负 载控制。 本实施例中, 在第二基站确定有可用的非授权频段时, 向 UE发 送导频信号, 然后, UE根据导频信号对辅小区进行 RRM测量。
本实施例中, UE在配置辅小区后, 根据辅小区配置命令中的 RRM测 量指示不检测辅小区的导频, UE在收到激活命令之后才根据导频做 RRM 测量。 在本实施例的其他可能实现方式中, UE被配置辅小区后, UE无条 件地不断检测辅小区的导频, 但是 UE不做 RRM测量。
进一歩地, 本实施例提供的 UE还可以包括: 发送单元 25, 用于所述
UE 在第一次上行发送时向所述第二基发送所述辅小区的信道状态信息 CSI。 一种实现方式中, 发送单元 25在第一次上行发送时直接向第二基站 发送辅小区的信道状态信息 (Channel State Information, 简称 CSI) , 另 一种实现方式中, 发送单元 25在第一次上行发送时向第一基站发送 CSI, 以通过第一基站将 CSI转发给第二基站。具体来说,如果辅小区被激活后, UE 的第一次上行发送的是物理上行共享信道 (Physical Uplink Shared Channel, 简称 PUSCH) , 则 UE无条件携带辅小区对应的 CSI, 如果辅 小区被激活后, UE 的第一次上行发送的是物理上行控制信道 (Physical Uplink Control Channel, 简称 PUCCH) , 而且该 PUCCH是用于发送其它 辅小区的 CSI, 则无论 PUCCH资源是用于哪一个辅小区的 CSI发送, UE 无条件挪用该 PUCCH资源向第二基站发送该辅小区对应的 CSI。 本实施 例中, 使 UE在第一次上行发送时就向第二基站发送辅小区的信道状态信 息 CSI, 使得 UE能够及时的向第二基站发送辅小区的 CSI, 以便第二基 站根据辅小区的 CSI能够合理的调度该 UE, 提高资源的使用效率。 其中, 辅小区的 CSI包括信道指令指示(Channel Quality Indicator, 简称 CQI) 。 本实施例中, 所述辅小区激活命令中还包括: 所述 UE的最大允许上 行发送功率和 /或所述辅小区的导频发射功率。 相应地, 所述 UE还包括功 率余量计算单元和路损计算; 所述功率余量计算, 计算单元用于: 根据所 述最大允许上行发送功率计算所述 UE的功率余量, 以及根据所述辅小区 的导频发射功率测量所述 UE与所述第二基站之间的路损。
实际上 UE的最大允许上行发送功率和小区的导频发射功率这两个参 数, 第一基站在将辅小区配置给 UE时就将这两个参数发送给了 UE, 第 一基站可以在辅小区配置命令中携带 UE的最大允许上行发送功率和小区 的导频发射功率, 但是, 由于从配置辅小区到该辅小区实际抢占到非授权 频段之间有一定的时间间隔, 由于干扰等其他因素的影响, UE 的最大允 许上行发送功率和小区的导频发射功率这两个参数的值可能已经发生了 变化。 因此, 本实施例中, 为了使 UE计算的路损和功率余量更加准确, 在辅小区激活命令中携带 UE 的最大允许上行发送功率和 /或所述辅小区 的导频发射功率。
如果 UE的最大允许上行发送功率和辅小区的导频发射功率中的任一 一个或两个均发生了变化, 第二基站或第一基站需要将这两个参数重新发 送给 UE。 如果只有 UE 的最大允许上行发送功率发生了变化, 辅小区激 活命令中可以只携带变化后的 UE 的最大上行发送功率, UE在计算功率 余量时根据变化后的最大上行发送功率计算, 而计算路损时仍按照预先配 置的辅小区的导频发射功率计算。 如果只有辅小区的导频发射功率发生了 变化,辅小区激活命令中可以只携带变化后的辅小区的导频发射功率, UE 在计算路损时根据变化后的辅小区的导频发射功率计算, UE 在计算功率 余量时根据预先配置的 UE的最大允许上行发送功率。 如果 UE的最大允 许上行发送功率和辅小区的导频发射功率都发生了变化, 辅小区激活命令 中需携带变化后的 UE的最大允许上行发送功率和变化后的辅小区的导频 发射功率, UE在计算功率余量时根据变化后的 UE 的最大允许上行发送 功率计算, UE 在计算路损时根据变化后的辅小区的导频发射功率计算。 UE 在计算得到路损后, 根据路损确定是否触发功率余量报告, 如果满足 触发条件, UE向第二基站发送功率余量报告, 或者, UE将功率余量报告 发送给第一基站, 由第一基站在转发给第二基站。 可选地, 所述 UE还可以包括检测单元: 用于检测所述辅小区是否发 生无线链路失败; 当所述检测单元检测到所述辅小区发生无线链路失败 时, 激活单元 23确定所述辅小区去激活。本实施例中, 通过 UE自己检测 辅小区是否发生无线链路失败, 能够及时的对辅小区去激活。或者, 当然, 也可以按照现有技术的方法, 由第一基站或第二基站检测辅小区是否发生 无线链路失败, 当第一基站或第二基站检测到辅小区发生无线链路失败 时, 第一基站或第二基站向 UE发送辅小区关闭通知消息, 当接收单元 21 接收到所述辅小区关闭通知消息时, 所述激活单元 23 确定所述辅小区去 激活。 现有技术的方法, 第一基站和第二基站检测无线链路是否失败会有 一定的延迟,而且通知 UE关闭辅小区也需要一定的时间, 实现起来复杂, 而且由于延迟不能够及时的对辅小区去激活。
本实施例中, 计算单元还用于: 在所述激活单元确定所述辅小区去激 活之后, 重新检测所述 UE的功率余量, 并触发功率余量上报, 以使所述 第一基站根据所述功率余量调整所述 UE的上行发射功率。 在辅小区去激 活后, UE 的功率发生了变化, 本实施例中, 通过计算单元重新检测 UE 的功率余量, 并触发功率余量, 使得第一基站能够及时的调整 UE的上行 发射功率。
图 4为本发明实施例提供的一种基站的结构示意图, 该基站可以执行 上述实施例中第一基站的动作, 如图 4所示, 本实施例提供的基站包括: 发送单元 31和确定单元 32。
发送单元 31, 用于向用户设备 UE发送辅小区配置命令, 以指示所述 UE配置所述辅小区,所述辅小区配置命令包括无线资源管理 RRM测量指 示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令 且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述基站为主小区对应的基站, 所述主小区使用授权频段通信, 所 述辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
确定单元 32, 用于确定所述辅小区有可用的非授权频段;
所述发送单元 31 还用于: 当所述辅小区有可用的非授权频段时, 向 所述 UE发送辅小区激活命令,所述辅小区激活命令用于激活所述辅小区。
本实施例中, 确定单元 32确定所述辅小区有可用的非授权频段, 具 体通过以下几种方式: 第一种实现方式中, 基站还包括接收单元, 接收单 元用于接收第二基站发送的非授权频段的使用信息,所述第二基站为所述辅 小区对应的基站,其中,非授权频段的使用信息包括非授权频段的忙闲情况, 确定单元 32根据非授权频段的使用信息确定非授权频段是否可用;若非授权 频段空闲, 则确定单元 32确定非授权频段可以使用。 在第一种实现方式中, 第二基站在抢占到非授权频段之后, 可以主动向基站发送非授权频段的使用 信息, 或者, 基站周期性的主动向第二基站询问第二基站是否有可用的非授 权频段, 如果第二基站抢占到非授权频段, 则第二基站向基站返回非授权频 段的使用信息。 第二种实现方式中, 确定单元 32具体用于检测所述辅小区 的所述非授权频段的使用状态, 根据所述非授权频段的使用状态确定所述 非授权频段可用。
本实施例提供的基站, UE 的主小区对应的基站在 UE 的辅小区对应 的第二基站抢占到非授权频段之前, 将该辅小区配置给 UE, 在辅小区抢 占到可用的非授权频段之后, UE就可以激活该辅小区并进行 RRM测量, 从而减少了配置辅小区所占用非授权频段的时间, 增加了 UE使用非授权 频段通信的时间, 提高了非授权频段的使用率。
图 5为本发明实施例提供的又一种基站的结构示意图, 该基站可以执 行上述实施例中第二基站的动作,如图 5所示,本实施例提供的基站包括: 确定单元 41和发送单元 42。
其中, 确定单元 41, 用于确定辅小区有可用的非授权频段, 所述基站为 所述辅小区对应的基站;
发送单元 42, 用于向用户设备 UE发送辅小区激活命令, 以使所述 UE 根据所述辅小区激活命令激活所述辅小区。
本实施例中,发送单元 42使用非授权频段向 UE发送辅小区激活命令, 具体为: 发送单元 42可以直接向 UE发送辅小区激活命令, 或者, 发送单元 42向 UE的主小区对应的第一基站发送非授权频段的使用信息, 非授权频 段的使用信息包括非授权频段的忙闲情况, 以使第一基站根据非授权频段 的使用信息向 UE 发送辅小区激活命令, 其中, 所述第一基站为主小区对 应的基站, 第一基站使用授权频段通信, 所述主小区向所述 UE提供服务。
发送单元 42 向所述 UE发送辅小区激活命令之后, 所述发送单元 42 还用于: 使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据 所述导频信号进行无线资源管理 RRM测量。
图 6为本发明实施例提供的一种通信方法的流程图, 本实施例提供的 方法, 可以由图 1所示的 UE执行, 如图 6所示, 本实施例提供的方法包 括以下歩骤:
歩骤 101、 UE接收该 UE的主小区对应的第一基站发送的辅小区配置 命令, 根据辅小区配置命令为该 UE配置辅小区, 其中, 辅小区配置命令 是第一基站在辅小区对应的第二基站没有可用的非授权频段之前向该 UE 发送的, 辅小区配置命令包括 RRM 测量指示, RRM 测量指示用于指示 UE 在接收到小区配置命令且当辅小区有可用的非授权频段时, 对辅小区 进行 RRM测量, 主小区使用授权频段通信, 辅小区使用非授权频段通信。
本实施例中, UE 的主小区对应的第一基站在辅小区对应的基站占用 非授权频段之前, 为该 UE配置辅小区, 需明确的是该辅小区可以配置给 一个或多个 UE。第一基站通过向 UE发送辅小区配置命令为 UE配置辅小 区, 辅小区配置命令中包括无线资源管理 ( Radio Resource Management, 简称 RRM) 测量指示, 该 RRM测量指示用于指示 UE在接收到辅小区配 置命令后不立即进行 RRM测量, 而是当所述辅小区有可用的非授权频段 时才对辅小区进行 RRM测量。本实施例中,在辅小区配置命令中携带 RRM 测量指示主要是因为第一基站在将辅小区配置给 UE时, 该辅小区还没有 可用的非授权频段, 如果 UE接收到辅小区配置命令后立即对该辅小区进 行 RRM测量, 会导致 UE测量到的该辅小区的信号强度低于门限, 第一 基站会将该辅小区删掉。 所以, 本实施例中第一基站在辅小区配置命令中 携带 RRM测量指示, 指示 UE该辅小区现在还不可用, UE接收到辅小区 配置命令后, 根据 RRM测量指示, 不立即对辅小区进行 RRM测量, 在 辅小区有可用的非授权频段时, UE对辅小区进行 RRM测量。
当第一基站在确定辅小区有可用的非授权频段后, 才将辅小区配置给 UE, 由于配置流程需要占用了一定的时间, 使得 UE真正使用非授权频段 通信的时间减少,一般情况下配置流程需要占用 30-50毫秒的时间, 因此, 会使 UE使用非授权频段通信的时间减少 30-50毫秒的时间。本实施例中, 在 UE的辅小区抢占到非授权频段之前, 第一基站就将辅小区配置给 UE, 使得 UE在辅小区抢占到非授权频段之后, 就可以激活该辅小区并对该辅 小区进行 RRM测量,从而减少了配置辅小区所占用的非授权频段的时间, 增加了 UE使用非授权频段通信的时间, 提高了非授权频段的使用率。
歩骤 102、当辅小区有可用的非授权频段时, UE接收第二基站或第一 基站发送的辅小区激活命令, 根据辅小区激活命令激活辅小区。
UE要真正使用辅小区进行通信,还必须激活该辅小区。在第二基站抢占 到非授权频段之后,第二基站直接向 UE发送辅小区激活命令,通知 UE激活 该辅小区, 或者, 第二基站主动向第一基站发送非授权频段的使用信息, 以使第一基站根据非授权频段的使用信息确定第二基站有可用的非授权 频段, 然后, 第一基站向 UE发送辅小区激活命令。 当然, 第一基站也可 以主动向第二基站询问第二基站是否有可用的非授权频段, 如果第二基站有 可用的非授权频段, 第二基站在向第一基站返回的响应中携带非授权频段的 使用信息, 根据非授权频段的使用信息确定第二基站有可用的非授权频 段; 或者, 第一基站也可以自己检测非授权频段的使用状态, 根据非授权 频段的使用状态确定非授权频段可用, 然后, 第一基站向 UE发送辅小区 激活命令。 在辅小区被激活之后, UE 就可以使用非授权频段与第二基站 通信。
本实施例提供的方法, 第一基站在辅小区对应的第二基站抢占到非授 权频段之前, 将该辅小区配置给 UE, 在辅小区抢占到可用的非授权频段 之后, 就可以进行 RRM测量以及激活该辅小区, 从而减少了配置辅小区 所占用非授权频段的时间, 增加了 UE使用非授权频段通信的时间, 提高 了非授权频段的使用率。
图 7为本发明实施例提供的另一种通信方法的流程图, 本实施例提供 的方法, 可以由图 3所示的 UE执行, 如图 7所示, 本实施例提供的方法包 括以下歩骤:
歩骤 201、 UE接收该 UE的主小区对应的第一基站发送的辅小区配置 命令, 根据辅小区配置命令为该 UE配置辅小区。
其中, 辅小区配置命令是第一基站在辅小区对应的第二基站还没有可 用的非授权频段之前向该 UE发送的, 辅小区配置命令包括 RRM测量指 示, RRM测量指示用于指示 UE在接收到小区配置命令且当所述辅小区有 可用的非授权频段时, 对辅小区进行 RRM测量, 第一基站使用授权频段 通信, 辅小区对应的第二基站使用非授权频段通信。
歩骤 202、 当辅小区有可用的非授权频段时, UE接收第二基站或第一 基站发送的辅小区激活命令, 根据辅小区激活命令激活辅小区。
在本实施例中, 辅小区激活命令中还可以包括: UE 的最大允许上行 发送功率和 /或辅小区的导频发射功率, 以使 UE根据最大允许上行发送功 率计算 UE的功率余量, 以及根据辅小区的导频发射功率测量 UE与第二 基站之间的路损。 实际上 UE的最大允许上行发送功率和小区的导频发射 功率这两个参数, 第一基站在将辅小区配置给 UE时就将这两个参数发送 给了 UE, 第一基站可以在辅小区配置命令中携带 UE 的最大允许上行发 送功率和小区的导频发射功率, 但是, 由于从配置辅小区到该辅小区实际 抢占到非授权频段之间有一定的时间间隔, 由于干扰等其他因素的影响, UE 的最大允许上行发送功率和小区的导频发射功率这两个参数的值可能 已经发生了变化。
如果 UE的最大允许上行发送功率和辅小区的导频发射功率中的任一 一个或两个均发生了变化, 第二基站或第一基站需要将这两个参数重新发 送给 UE。 如果只有 UE 的最大允许上行发送功率发生了变化, 辅小区激 活命令中可以只携带变化后的 UE 的最大上行发送功率, UE在计算功率 余量时根据变化后的最大上行发送功率计算, 而计算路损时仍按照预先配 置的辅小区的导频发射功率计算。 如果只有辅小区的导频发射功率发生了 变化,辅小区激活命令中可以只携带变化后的辅小区的导频发射功率, UE 在计算路损时根据变化后的辅小区的导频发射功率计算, UE 在计算功率 余量时根据预先配置的 UE的最大允许上行发送功率。 如果 UE的最大允 许上行发送功率和辅小区的导频发射功率都发生了变化, 辅小区激活命令 中需携带变化后的 UE的最大允许上行发送功率和变化后的辅小区的导频 发射功率, UE在计算功率余量时根据变化后的 UE 的最大允许上行发送 功率计算, UE 在计算路损时根据变化后的辅小区的导频发射功率计算。 UE 在计算得到路损后, 根据路损确定是否触发功率余量报告, 如果满足 触发条件, UE向第二基站发送功率余量报告, 或者, UE将功率余量报告 发送给第一基站, 由第一基站在转发给第二基站。 对于歩骤 201和 202的其他解释可参照实施例一的描述, 这里不再赘 述。
歩骤 203、 UE接收第二基站通过非授权频段发送的导频信号, 根据导 频信号进行 RRM测量, 导频信号为第二基站确定非授权频段可用时, 向 UE发送的。
使用非授权频段通信一般需要采用冲突检测和规避的策略, 在使用非 授权频段之前, 第二基站检测非授权频段的忙闲情况, 只有在非授权频段 空闲时才可以使用, 如果第二基站检测到非授权频段被占用, 则会继续检 测, 直到检测到非授权频段空闲时, 第二基站确定有可用的非授权频段。 第二基站向 UE发送导频信号, 以使 UE根据导频信号进行 RRM测量, RRM测量的目的主要是用于信道分配、 功率控制、 切换控制、 负载控制。 本实施例中, 在第二基站确定有可用的非授权频段时, 向 UE发送导频信 号, 然后, UE根据导频信号对辅小区进行 RRM测量。
本实施例中, UE在配置辅小区后, 根据辅小区配置命令中的 RRM测 量指示不检测辅小区的导频, UE在收到激活命令之后才根据导频做 RRM 测量。 在本实施例的其他可能实现方式中, UE被配置辅小区后, UE无条 件地不断检测辅小区的导频, 但是 UE不做 RRM测量。
歩骤 204: UE在第一次上行发送时向第二基发送辅小区的信道状态信 息 CSI。
—种实现方式中, UE 在第一次上行发送时直接向第二基站发送辅小 区的信道状态信息 (Channel State Information, 简称 CSI) , 另一种实现 方式中, UE 在第一次上行发送时向第一基站发送 CSI, 以通过第一基站 将 CSI转发给第二基站。 具体来说, 如果辅小区被激活后, UE的第一次 上行发送的是物理上行共享信道 (Physical Uplink Shared Channel, 简称 PUSCH) , 则 UE无条件携带辅小区对应的 CSI, 如果辅小区被激活后, UE 的第一次上行发送的是物理上行控制信道 (Physical Uplink Control Channel, 简称 PUCCH) , 而且该 PUCCH是用于发送其它辅小区的 CSI, 则无论 PUCCH资源是用于哪一个辅小区的 CSI发送, UE无条件挪用该 PUCCH向第二基站发送该辅小区对应的 CSI。本实施例中, 使 UE在第一 次上行发送时就向第二基站发送辅小区的信道状态信息 CSI, 使得 UE能 够及时的向第二基站发送辅小区的 CSI, 以便第二基站根据辅小区的 CSI 能够合理的调度该 UE, 提高资源的使用效率。 其中, 辅小区的 CSI包括 信道指令指示 (Channel Quality Indicator, 简称 CQI) 。
本实施例提供的方法, UE 的主小区对应的第一基站在 UE 的辅小区 对应的第二基站抢占到非授权频段之前, 将该辅小区配置给 UE, 在辅小 区抢占到可用的非授权频段之后, UE就可以进行 RRM测量以及激活该辅 小区, 从而减少了配置辅小区所占用非授权频段的时间, 增加了 UE使用 非授权频段通信的时间, 提高了非授权频段的使用率。
在上述图 6或图 7所示方法的基础上,如果辅小区发生无线链路失败, 则 UE确定辅小区去激活, 或者, 当 UE接收到辅小区关闭通知消息时, 确定辅小区去激活, 该辅小区关闭通知消息可以是第一基站或第二基站发 送的, 并向无线链路控制 (Radio Resource Control, 简称 RRC) 实体上报 UE的链路故障, 在链路故障后, UE不发起随机接入过程。 并且, UE确 定辅小区去激活之后, UE重新检测 UE 的功率余量, 并触发功率余量上 报, 以使第一基站根据功率余量调整 UE 的上行发射功率。 同时, UE确 定辅小区去激活之后, 还可以测量接收信号强度指示 (Received Signal Strength Indication, 简称 RSSI) , UE通过测量 RSSI可以确定当前是否有 其他设备在使用非授权频段, 如果 UE测量到的 RSSI增大, 则说明有其 他设备正在使用非授权频段, 如果 UE测量到的 RSSI减少, 则说明其他 设备没有使用非授权频段。
图 8 为本发明实施例提供的又一种通信方法的流程图, 本实施例提供 的方法可以由图 4所示的基站执行, 如图 8所示, 以下将该基站称为第一基 站, 本实施例提供的方法包括以下歩骤:
歩骤 301、第一基站向 UE发送辅小区配置命令, 用于指示 UE配置辅 小区, 辅小区配置命令中包括无线资源管理 RRM测量指示, RRM测量指 示用于指示 UE在接收到辅小区配置命令且当辅小区有可用的非授权频段 时, 对辅小区进行 RRM测量, 其中, 第一基站为主小区对应的基站, 主 小区使用授权频段通信, 辅小区使用非授权频段通信, 主小区向 UE提供 服务。
歩骤 302、 第一基站确定辅小区有可用的非授权频段。 第一基站确定辅小区有空闲的非授权频段可以使用, 具体为: 第一基站 接收第二基站发送的非授权频段的使用信息, 第二基站为辅小区对应的基 站, 非授权频段的使用信息包括非授权频段的忙闲情况, 第一基站根据非授 权频段的使用信息确定非授权频段是否可用; 若非授权频段空闲, 则第一基 站确定非授权频段可以使用。 一种实现方式中, 第二基站在抢占到非授权频 段之后, 主动向第一基站发送非授权频段的使用信息。 另一种实现方式中, 第一基站周期性的主动向第二基站询问第二基站是否有可用的非授权频段, 如果第二基站抢占到非授权频段, 则在向第一基站返回非授权频段的使用信 息。 另外, 第一基站可以自己检测辅小区的非授权频段的使用状态, 根据 非授权频段的使用状态确定非授权频段是否可用。
歩骤 303、 当辅小区有可用的非授权频段时, 第一基站向 UE发送辅 小区激活命令, 用于激活辅小区。
本实施例提供的方法, UE 的主小区对应的第一基站在 UE 的辅小区 对应的第二基站抢占到非授权频段之前, 将该辅小区配置给 UE, 在辅小 区抢占到可用的非授权频段之后, UE就可以进行 RRM测量以及激活该辅 小区, 从而减少了配置辅小区所占用非授权频段的时间, 增加了 UE使用 非授权频段通信的时间, 提高了非授权频段的使用率。
图 9为本发明实施例提供的还一种通信方法的流程图, 本实施例提供的 方法, 可以由图 5所示的基站执行, 如图 9所示, 以下将该基站称为第二基 站, 本实施例提供的方法包括以下歩骤:
歩骤 401、 第二基站确定辅小区有可用的非授权频段, 第二基站为辅小 区对应的基站。
歩骤 402、 第二基站向 UE发送辅小区激活命令, 以使 UE根据辅小 区激活命令激活辅小区。
本实施例中, 第二基站使用非授权频段向 UE发送辅小区激活命令, 具体为: 第二基站可以直接向 UE发送辅小区激活命令, 或者, 第二基站向 第一基站发送非授权频段的使用信息, 非授权频段的使用信息包括非授权 频段的忙闲情况, 以使第一基站根据非授权频段的使用信息向 UE发送辅 小区激活命令, 其中, 第一基站为主小区对应的基站, 主小区向 UE提供服 务, 第一基站使用授权频段通信。 在实施例四的基础上, 在本发明可能的实现方式中, 歩骤 402之后还可 以包括以下歩骤: 第二基站使用非授权频段向 UE发送导频信号, 以使 UE 根据导频信号进行 RRM测量。
图 10为本发明实施例提供的一种通信方法的信令流程图,如图 10所示, 本实施例提供的方法包括以下歩骤:
歩骤 501、 第一基站向 UE发送辅小区配置命令, 辅小区配置命令中包 括 RRM
Figure imgf000026_0001
第一基站在 UE的辅小区对应的第二基站还没有可用的非授权频段之 前向 UE发送该辅小区配置命令,辅小区配置命令用于为 UE配置辅小区, 辅小区配置命令中包括无线资源管理 RRM测量指示, RRM测量指示用于 指示 UE 在接收到辅小区配置命令且当所述辅小区有可用的非授权频段 时, 对辅小区进行 RRM测量, 其中, 主小区使用授权频段通信, 辅小区 使用非授权频段通信。
歩骤 502、 UE接收到辅小区配置命令后, 根据 RRM测量指示不立即 进行 RRM测量。
歩骤 503、 第二基站确定有可也用的非授权频段。
歩骤 504、 第二基站向第一基站发送非授权频段的使用信息。
歩骤 505、 第一基站根据非授权频段的使用信息确定第二基站有可用 的非授权频段。
歩骤 506、 第一基站向 UE发送辅小区激活命令, 辅小区激活命令用 于激活辅小区。
歩骤 507、 UE根据辅小区激活命令激活辅小区。
歩骤 508、 第二基站使用非授权频段向 UE发送导频信号。
歩骤 509、 UE根据导频信号对辅小区进行 RRM测量。
UE在激活辅小区后, 就可以使用非授权频段与第二基站通信。
图 11为本发明实施例提供的又一种用户设备的结构示意图, 如图 11 所示, 本实施例提供的用户设备 500包括: 至少一个处理器 51、 存储器 52、至少一个网络接口 53以及至少一个通信总线 54, 通信总线 54用于实 现这些部件之间的连接通信。 处理器 51用于执行存储器 52中存储的可执 行指令,例如计算机程序。存储器 52可能包含高速随机存取存储器(RAM: Random Access Memory) , 也可能还包括非不稳定的存储器 (non-volatile memory) , 例如至少一个磁盘存储器。用户设备 500通过至少一个网络接 口 53 (可以是有线或者无线) 实现与至少一个其他网元之间的通信连接。
在一些实施方式中, 存储器 52存储了程序, 处理器 51执行存储器 52 中存储的程序, 用于执行以下操作:
接收所述 UE的主小区对应的第一基站发送的辅小区配置命令, 根据所 述辅小区配置命令为所述 UE配置辅小区, 其中, 所述辅小区配置命令是 所述第一基站在所述辅小区对应的第二基站还没有可用的非授权频段之 前向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量 指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命 令且当所述辅小区有可用的非授权频段时,对所述辅小区进行 RRM测量, 所述主小区使用授权频段通信, 所述辅小区使用非授权频段通信;
当所述辅小区有可用的非授权频段时, 接收所述第二基站或所述第一 基站发送的辅小区激活命令, 根据所述辅小区激活命令激活所述辅小区。
所述处理器 51 在根据所述辅小区激活命令激活所述辅小区之后, 处 理器 51还用于: 接收所述第二基站使用所述非授权频段发送的导频信号, 根据所述导频信号进行所述 RRM测量, 所述导频信号为所述第二基站确 定所述非授权频段可用后向, 所述 UE发送的。
进一歩, 处理器 51 还用于在第一次上行发送时向所述第二基发送所 述辅小区的信道状态信息 CSI。处理器 51在第一次上行发送时向所述第二 基发送所述辅小区的信道状态信息 CSI时, 具体用于: 在第一次上行发送 时向所述第一基站发送所述 CSI, 以通过所述第一基站将所述 CSI转发给 所述第二基站。
本实施例中, 辅小区激活命令中还包括: 所述 UE的最大允许上行发 送功率和 /或所述辅小区的导频发射功率; 所述处理器 51还用于, 根据所 述最大允许上行发送功率计算所述 UE的功率余量, 以及根据所述辅小区 的导频发射功率测量所述 UE与所述第二基站之间的路损。
本实施例中, 处理器 51还用于: 当所述 UE检测到所述辅小区发生无 线链路失败时, 或者, 接收到第一基站或第二基站发送的辅小区关系通知 消息后, 确定所述辅小区去激活。 处理器 51确定所述辅小区去激活之后, 所述处理器 51还用于:重新检测所述 UE的功率余量, 并触发功率余量上 报, 以使所述第一基站根据所述功率余量调整所述 UE的上行发射功率。
本实施例提供的用户设备, 可用于执行图 6和图 7所示的方法, 具体 实现方式和技术效果类似, 这里不再赘述。
图 12为本发明实施例提供的又一种基站的结构示意图, 该基站可以 执行上述实施例中第一基站的动作, 如图 12所示, 本实施例提供的基站 600包括: 处理器 61、 存储器 62、 发射器 64, 存储器 62和发射器 64通 过总线与处理器 61连接, 其中, 存储器 62用于存储指令, 当基站 600运 行时, 存储器 62与处理器 61之间通信, 使得基站 600执行本发明提供的 通信方法。
发射器 64, 用于向 UE发送辅小区配置命令, 以指示所述 UE配置所 述辅小区, 所述辅小区配置命令中包括无线资源管理 RRM测量指示, 所 述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令且当所 述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述基站为主小区对应的基站, 所述主小区使用授权频段通信, 所述辅小 区使用非授权频段通信, 所述主小区向所述 UE提供服务;
处理器 61, 用于确定所述辅小区有可用的非授权频段;
所述发射器 64还用于, 当所述辅小区有可用的非授权频段时, 向所 述 UE发送辅小区激活命令, 用于激活所述辅小区。
本实施例提供的基站 600还包括: 接收器 63, 用于接收第二基站发送 的所述非授权频段的使用信息, 所述第二基站为所述辅小区对应的基站。 相应的, 所述处理器 61 具体用于: 根据所述非授权频段的使用信息确定 所述非授权频段是否可用; 若所述非授权频段空闲, 则确定所述非授权频 段可用。 或者, 处理器 61检测所述辅小区的所述非授权频段的使用状态, 根据所述非授权频段的使用状态确定所述非授权频段可用。
本实施例提供的基站, 可用于执行图 8所示的方法, 具体实现方式和 技术效果类似, 这里不再赘述。
图 13 为本发明实施例提供的还一种基站的结构示意图, 该基站可以 执行上述实施例中第二基站的动作, 如图 13 所示, 本实施例提供的基站 700包括: 处理器 71、 存储器 72、 发射器 74, 存储器 72和发射器 74通 过总线与处理器 71连接, 其中, 存储器 72用于存储指令, 当基站 700运 行时, 存储器 72与处理器 71之间通信, 使得基站 700执行本发明提供的 通信方法。
处理器 71, 用于确定辅小区有可用的非授权频段, 所述基站为辅小区对 应的基站;
发射器 74, 用于在所述处理器 71确定所述辅小区有可用的非授权频段 时, 向所述 UE发送辅小区激活命令, 以使所述 UE根据所述辅小区激活命 令激活所述辅小区。
所述发射器 74具体用于:向第一基站发送所述非授权频段的使用信息, 以使所述第一基站根据所述非授权频段的使用信息向所述 UE发送所述辅 小区激活命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所 述 UE提供服务。
所述发射器 74向所述 UE发送辅小区激活命令之后,所述发射器 74还 用于: 使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所 述导频信号进行无线资源管理 RRM测量。
本实施例提供基站, 可用于执行图 9所示的方法, 具体实现方式和技 术效果类似, 这里不再赘述。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分歩骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的歩骤; 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种用户设备 UE, 其特征在于, 包括:
接收单元, 用于接收所述 UE的主小区对应的第一基站发送的辅小区配 置命令;
配置单元, 用于根据所述接收单元接收的所述辅小区配置命令为所述
UE 配置辅小区, 其中, 所述辅小区配置命令是所述第一基站在所述辅小 区对应的第二基站没有可用的非授权频段之前向所述 UE发送的, 所述辅 小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用 于指示所述 UE在接收到所述辅小区配置命令且当所述辅小区有可用的非 授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权频段通 信, 所述辅小区使用非授权频段通信;
所述接收单元还用于, 当所述辅小区有可用的非授权频段时, 接收所 述第二基站或所述第一基站发送的辅小区激活命令;
激活单元, 用于根据所述接收单元接收的所述辅小区激活命令激活所 述辅小区。
2、 根据权利要求 1所述的 UE, 其特征在于, 还包括: 测量单元; 所述接收单元还用于: 接收所述第二基站使用所述非授权频段发送的 导频信号;
所述测量单元, 用于根据所述导频信号进行所述 RRM测量, 所述导 频信号为所述第二基站确定所述非授权频段可用后, 向所述 UE发送的。
3、 根据权利要求 1所述的 UE, 其特征在于, 还包括:
发送单元, 用于所述 UE在第一次上行发送时向所述第二基发送所述 辅小区的信道状态信息 CSI。
4、根据权利要求 3所述的 UE,其特征在于,所述发送单元具体用于: 在第一次上行发送时向所述第一基站发送所述 CSI, 以通过所述第一 基站将所述 CSI转发给所述第二基站。
5、 根据权利要求 1所述的 UE, 其特征在于, 所述辅小区激活命令中 还包括:
所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率; 所述 UE还包括计算单元, 用于: 根据所述最大允许上行发送功率计算所述 UE的功率余量; 根据所述辅小区的导频发射功率测量所述 UE与所述第二基站之间的 路损。
6、 根据权利要求 1所述的 UE, 其特征在于, 还包括:
检测单元: 用于检测所述辅小区是否发生无线链路失败;
当所述检测单元检测到所述辅小区发生无线链路失败时, 所述激活单 元还用于: 确定所述辅小区去激活。
7、根据权利要求 5所述的 UE, 其特征在于, 所述计算单元, 还用于: 在所述激活单元确定所述辅小区去激活之后, 所述 UE重新检测所述 UE 的功率余量, 并触发功率余量上报, 以使所述第一基站根据所述功率 余量调整所述 UE的上行发射功率。
8、 一种基站, 其特征在于, 所述基站为第一基站, 包括:
发送单元,用于向用户设备 UE发送辅小区配置命令, 以指示所述 UE 配置所述辅小区,所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令且当 所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述第一基站为主小区对应的基站, 所述主小区使用授权频段通信, 所述 辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
确定单元, 用于确定所述辅小区有可用的非授权频段;
所述发送单元还用于: 当所述辅小区有可用的非授权频段时, 向所述
UE发送辅小区激活命令, 用于激活所述辅小区。
9、 根据权利要求 8所述的基站, 其特征在于, 还包括:
接收单元, 用于接收第二基站发送的所述非授权频段的使用信息, 所 述第二基站为所述辅小区对应的基站;
所述确定单元具体用于: 根据所述非授权频段的使用信息确定所述非 授权频段是否可用;
若所述非授权频段空闲, 则确定所述非授权频段可用。
10、 根据权利要求 8所述的基站, 其特征在于, 所述确定单元具体用 于:
检测所述辅小区的所述非授权频段的使用状态, 根据所述非授权频段 的使用状态确定所述非授权频段可用。
11、 一种基站, 其特征在于, 所述基站为第二基站, 包括:
确定单元, 用于确定辅小区有可用的非授权频段, 所述第二基站为所述 辅小区对应的基站;
发送单元, 用于向用户设备 UE发送辅小区激活命令, 以使所述 UE根 据所述辅小区激活命令激活所述辅小区。
12、 根据权利要求 11所述的基站, 其特征在于, 所述发送单元具体用 于:
向第一基站发送所述非授权频段的使用信息, 以使所述第一基站根据 所述非授权频段的使用信息向所述 UE 发送所述辅小区激活命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提供服务。
13、 根据权利要求 11或 12所述的基站, 其特征在于, 所述发送单元 向所述 UE发送辅小区激活命令之后, 所述发送单元还用于:
使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述 导频信号进行无线资源管理 RRM测量。
14、 一种用户设备 UE, 其特征在于, 包括: 处理器、 存储器和网络接 口, 所述处理器用于执行所述存储器中存储的可执行指令, 所述网络接口用 于所述 UE与其他网元之间的通信连接;
所述处理器用于执行以下操作:
接收所述 UE的主小区对应的第一基站发送的辅小区配置命令, 根据所 述辅小区配置命令为所述 UE配置辅小区, 其中, 所述辅小区配置命令是 所述第一基站在所述辅小区对应的第二基站没有可用的非授权频段之前 向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指 示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令 且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 所述主小区使用授权频段通信, 所述辅小区使用非授权频段通信;
当所述辅小区有可用的非授权频段时, 接收所述第二基站或所述第一 基站发送的辅小区激活命令, 根据所述辅小区激活命令激活所述辅小区。
15、 根据权利要求 14所述的 UE, 其特征在于, 所述处理器在根据所 述辅小区激活命令激活所述辅小区之后, 还用于: 接收所述第二基站使用所述非授权频段发送的导频信号, 根据所述导 频信号进行所述 RRM测量, 所述导频信号为所述第二基站确定所述非授 权频段可用后, 向所述 UE发送的。
16、 根据权利要求 14所述的 UE, 其特征在于, 所述处理器还用于: 在第一次上行发送时向所述第二基发送所述辅小区的信道状态信息
CSI。
17、 根据权利要求 16所述的 UE, 其特征在于, 所述处理器在第一次 上行发送时向所述第二基发送所述辅小区的信道状态信息 CSI时, 具体用 于:
在第一次上行发送时向所述第一基站发送所述 CSI, 以通过所述第一 基站将所述 CSI转发给所述第二基站。
18、 根据权利要求 14所述的 UE, 其特征在于, 所述辅小区激活命令 中还包括:
所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率; 所述处理器还用于, 根据所述最大允许上行发送功率计算所述 UE的 功率余量, 以及根据所述辅小区的导频发射功率测量所述 UE与所述第二 基站之间的路损。
19、 根据权利要求 14所述的 UE, 其特征在于, 所述处理器还用于: 当所述 UE检测到所述辅小区发生无线链路失败时, 确定所述辅小区 去激活。
20、 根据权利要求 18所述的 UE, 其特征在于, 所述处理器确定所述 辅小区去激活之后, 还用于:
重新检测所述 UE的功率余量, 并触发功率余量上报, 以使所述第一 基站根据所述功率余量调整所述 UE的上行发射功率。
21、 一种基站, 其特征在于, 所述基站为第一基站, 包括:
发射器, 用于向用户设备 UE发送辅小区配置命令, 以指示所述 UE 配置所述辅小区, 所述辅小区配置命令中包括无线资源管理 RRM测量指 示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令 且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中,所述第一基站为主小区对应的基站,所述主小区使用授权频段通信, 所述辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务; 处理器, 用于确定所述辅小区有可用的非授权频段;
所述发射器还用于, 当所述辅小区有可用的非授权频段时, 向所述
UE发送辅小区激活命令, 用于激活所述辅小区。
22、 根据权利要求 21所述的基站, 其特征在于, 还包括:
接收器, 用于接收第二基站发送的所述非授权频段的使用信息, 所述 第二基站为所述辅小区对应的基站;
所述处理器具体用于: 根据所述非授权频段的使用信息确定所述非授 权频段是否可用;
若所述非授权频段空闲, 则确定所述非授权频段可用。
23、 根据权利要求 21 所述的基站, 其特征在于, 所述处理器具体用 于:
检测所述辅小区的所述非授权频段的使用状态, 根据所述非授权频段 的使用状态确定所述非授权频段可用。
24、 一种基站, 其特征在于, 所述基站为第二基站, 包括:
处理器, 用于确定辅小区有可用的非授权频段, 所述第二基站为所述辅 小区对应的基站;
发射器, 用于在所述处理器确定所述辅小区有可用的非授权频段时, 向 所述 UE发送辅小区激活命令, 以使所述 UE根据所述辅小区激活命令激 活所述辅小区。
25、根据权利要求 24所述的基站,其特征在于,所述发射器具体用于: 向第一基站发送所述非授权频段的使用信息, 以使所述第一基站根据 所述非授权频段的使用信息向所述 UE 发送所述辅小区激活命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提供服务。
26、 根据权利要求 24或 25所述的基站, 其特征在于, 所述发射器向 所述 UE发送辅小区激活命令之后, 所述发射器还用于:
使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述 导频信号进行无线资源管理 RRM测量。
27、 一种通信方法, 其特征在于, 包括:
用户设备 UE接收所述 UE的主小区对应的第一基站发送的辅小区配置 命令, 根据所述辅小区配置命令为所述 UE配置辅小区, 其中, 所述辅小 区配置命令是所述第一基站在所述辅小区对应的第二基站没有可用的非 授权频段之前向所述 UE发送的, 所述辅小区配置命令包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小 区配置命令且当所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM 测量, 所述主小区使用授权频段通信, 所述辅小区使用非授权频段 通信;
当所述辅小区有可用的非授权频段时, 所述 UE接收所述第二基站或 所述第一基站发送的辅小区激活命令, 根据所述辅小区激活命令激活所述 辅小区。
28、 根据权利要求 27所述的方法, 其特征在于, 所述 UE接收所述第 二基站或所述第一基站发送的辅小区激活命令, 根据所述辅小区激活命令 激活所述辅小区之后, 还包括:
所述 UE接收所述第二基站使用所述非授权频段发送的导频信号, 根 据所述导频信号进行所述 RRM测量, 所述导频信号为所述第二基站确定 所述非授权频段可用后, 向所述 UE发送的。
29、 根据权利要求 27所述的方法, 其特征在于, 所述 UE接收所述第 二基站或所述第一基站发送的辅小区激活命令之后, 还包括:
所述 UE在第一次上行发送时向所述第二基发送所述辅小区的信道状 态信息 CSI。
30、 根据权利要求 29所述的方法, 其特征在于, 所述 UE在第一次上 行发送时向所述第二基站发送所述辅小区的信道状态信息 CSI, 包括: 所述 UE在第一次上行发送时向所述第一基站发送所述 CSI, 以通过 所述第一基站将所述 CSI转发给所述第二基站。
31、 根据权利要求 27所述的方法, 其特征在于, 所述辅小区激活命 令中还包括:
所述 UE的最大允许上行发送功率和 /或所述辅小区的导频发射功率, 以使所述 UE根据所述最大允许上行发送功率计算所述 UE的功率余量, 以及根据所述辅小区的导频发射功率测量所述 UE与所述第二基站之间的 路损。
32、 根据权利要求 27所述的方法, 其特征在于, 还包括: 当所述 UE检测到所述辅小区发生无线链路失败时, 则所述 UE确定 所述辅小区去激活。
33、 根据权利要求 32所述的方法, 其特征在于, 所述 UE确定所述辅 小区去激活之后, 还包括:
所述 UE重新检测所述 UE的功率余量, 并触发功率余量上报, 以使 所述第一基站根据所述功率余量调整所述 UE的上行发射功率。
34、 一种通信方法, 其特征在于, 包括:
第一基站向用户设备 UE发送辅小区配置命令, 用于指示所述 UE配 置所述辅小区,所述辅小区配置命令中包括无线资源管理 RRM测量指示, 所述 RRM测量指示用于指示所述 UE在接收到所述辅小区配置命令且当 所述辅小区有可用的非授权频段时, 对所述辅小区进行 RRM测量, 其中, 所述第一基站为主小区对应的基站, 所述主小区使用授权频段通信, 所述 辅小区使用非授权频段通信, 所述主小区向所述 UE提供服务;
所述第一基站确定所述辅小区有可用的非授权频段;
当所述辅小区有可用的非授权频段时, 所述第一基站向所述 UE发送 辅小区激活命令, 用于激活所述辅小区。
35、 根据权利要求 34所述的方法, 其特征在于, 所述第一基站确定 所述辅小区有可用的非授权频段, 包括:
所述第一基站接收第二基站发送的所述非授权频段的使用信息, 所述 第二基站为所述辅小区对应的基站;
所述第一基站根据所述非授权频段的使用信息确定所述非授权频段 是否可用;
若所述非授权频段空闲, 则所述第一基站确定所述非授权频段可用。
36、 根据权利要求 34所述的方法, 其特征在于, 所述第一基站确定 所述辅小区有可用的非授权频段, 包括:
所述第一基站检测所述辅小区的所述非授权频段的使用状态, 根据所 述非授权频段的使用状态确定所述非授权频段可用。
37、 一种通信方法, 其特征在于, 包括:
第二基站确定辅小区有可用的非授权频段, 所述第二基站为所述辅小区 对应的基站;
所述第二基站向用户设备 UE发送辅小区激活命令, 以使所述 UE根据 所述辅小区激活命令激活所述辅小区。
38、 根据权利要求 37所述的方法, 其特征在于, 所述第二基站向所述 UE发送辅小区激活命令, 包括:
所述第二基站向第一基站发送所述非授权频段的使用信息, 以使所述 第一基站根据所述非授权频段的使用信息向所述 UE发送所述辅小区激活 命令, 其中, 所述第一基站为主小区对应的基站, 所述主小区向所述 UE提 供服务。
39、 根据权利要求 37或 38所述的方法, 其特征在于, 所述第二基站 向所述 UE发送辅小区激活命令之后, 还包括:
所述第二基站使用所述非授权频段向所述 UE发送导频信号, 以使所述 UE根据所述导频信号进行无线资源管理 RRM测量。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029109A1 (zh) * 2018-08-08 2020-02-13 Oppo广东移动通信有限公司 一种信息配置方法及装置、终端、网络设备
CN110999408A (zh) * 2017-08-11 2020-04-10 华为技术有限公司 激活辅小区的方法、通信装置和网络设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10412731B2 (en) 2016-04-27 2019-09-10 Kt Corporation Methods for transmitting and receiving uplink data and apparatuses thereof
CN106454910B (zh) 2016-09-09 2022-09-02 宇龙计算机通信科技(深圳)有限公司 通信方法、通信装置和终端
CN109803311B (zh) * 2017-11-17 2022-10-28 展讯通信(上海)有限公司 用于上行功率控制的用户设备、基站中的方法和装置
CN115413039B (zh) * 2022-08-15 2024-07-05 中国联合网络通信集团有限公司 通信方法、网络设备及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103039028A (zh) * 2010-06-21 2013-04-10 瑞典爱立信有限公司 用于无线网络中参数的信号传送的方法和装置
CN103339979A (zh) * 2011-01-26 2013-10-02 诺基亚公司 用于无线电系统在辅载波上共存的装置和方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102098148B (zh) * 2011-02-12 2013-07-31 电信科学技术研究院 一种载波聚合系统下的数据处理方法和设备
CN102761954B (zh) * 2011-04-29 2017-09-29 中兴通讯股份有限公司 多载波通信系统中上行同步方法及系统
CN102244927B (zh) * 2011-07-22 2015-01-28 新邮通信设备有限公司 多小区长期演进系统中建立上行同步的方法、设备和终端
CN102387508B (zh) * 2011-11-01 2019-05-24 中兴通讯股份有限公司 一种lte-a系统中载波聚合的方法和装置
CN103313375A (zh) * 2012-03-13 2013-09-18 中兴通讯股份有限公司 辅服务小区上的随机接入方法及用户设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103039028A (zh) * 2010-06-21 2013-04-10 瑞典爱立信有限公司 用于无线网络中参数的信号传送的方法和装置
CN103339979A (zh) * 2011-01-26 2013-10-02 诺基亚公司 用于无线电系统在辅载波上共存的装置和方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110999408A (zh) * 2017-08-11 2020-04-10 华为技术有限公司 激活辅小区的方法、通信装置和网络设备
WO2020029109A1 (zh) * 2018-08-08 2020-02-13 Oppo广东移动通信有限公司 一种信息配置方法及装置、终端、网络设备
US11229079B2 (en) 2018-08-08 2022-01-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information configuration method and terminal
US11950305B2 (en) 2018-08-08 2024-04-02 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information configuration method and terminal

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