WO2014113976A1 - 基于上行信号的切换方法、上行信号的配置方法、用户设备以及基站 - Google Patents

基于上行信号的切换方法、上行信号的配置方法、用户设备以及基站 Download PDF

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Publication number
WO2014113976A1
WO2014113976A1 PCT/CN2013/070998 CN2013070998W WO2014113976A1 WO 2014113976 A1 WO2014113976 A1 WO 2014113976A1 CN 2013070998 W CN2013070998 W CN 2013070998W WO 2014113976 A1 WO2014113976 A1 WO 2014113976A1
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WO
WIPO (PCT)
Prior art keywords
base station
uplink signal
user equipment
message
information
Prior art date
Application number
PCT/CN2013/070998
Other languages
English (en)
French (fr)
Inventor
汪巍崴
常宁娟
王轶
Original Assignee
富士通株式会社
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 富士通株式会社 filed Critical 富士通株式会社
Priority to KR1020157020985A priority Critical patent/KR20150103259A/ko
Priority to EP13873096.5A priority patent/EP2950587A4/en
Priority to JP2015554003A priority patent/JP2016504885A/ja
Priority to PCT/CN2013/070998 priority patent/WO2014113976A1/zh
Priority to CN201380069077.8A priority patent/CN104885524A/zh
Publication of WO2014113976A1 publication Critical patent/WO2014113976A1/zh
Priority to US14/797,439 priority patent/US20150319650A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835Determination of neighbour cell lists
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837Determination of triggering parameters for hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • H04W36/36Reselection control by user or terminal equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/004Transmission of channel access control information in the uplink, i.e. towards network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for switching based on an uplink signal, a method for configuring an uplink signal, a user equipment, and a base station.
  • Background Art Currently, under the control of a base station side, a user equipment can be handed over from a source base station to a target base station. In the existing mechanism, the switching of the user equipment is performed based on the measurement result of the downlink signal. The user equipment performs signal measurement according to the information configured on the base station side, and then reports the measurement result to the base station side, and the base station side initiates a handover process.
  • the inventors have found that in the prior art, the measurement of the downlink signal requires a process including cell (or frequency) identification, and a process of co-frequency (or inter-frequency) measurement, which takes a long time. Therefore, in a small cell
  • the coverage of the small cell may be left before the measurement is completed, and the link fails because the measurement report is not triggered in time.
  • the embodiment of the invention provides a handover method based on an uplink signal, a configuration method of an uplink signal, a user equipment, and a base station.
  • the purpose is to speed up the decision on handover based on the measurement of the uplink signal to meet the handover requirements in different scenarios.
  • an uplink signal-based handover method is provided, which is applied to a communication system in which a user equipment is switched from a source base station to a target base station, where the method includes:
  • the source base station Receiving, by the one or more other base stations, a notification message sent according to the detection of the uplink signal; the source base station determining the target base station from the one or more other base stations according to the notification message, and User equipment switches.
  • a method for switching an uplink signal is provided, which is applied to a communication system in which a user equipment is switched from a source base station to a target base station, where the method includes:
  • the target base station detects an uplink signal sent by the user equipment for handover;
  • a method for switching an uplink signal is provided, which is applied to a communication system in which a user equipment is switched from a source base station to a target base station, where the method includes:
  • the user equipment is switched.
  • a base station which is applied to a communication system in which a user equipment switches from the base station to a target base station, where the base station includes:
  • a message sending unit sending a trigger message to the user equipment, to trigger the user equipment to send an uplink signal for switching
  • Notifying the receiving unit receiving a notification message sent by one or more other base stations according to the detection of the uplink signal
  • the switching unit determines the target base station from the one or more other base stations according to the notification message, and performs handover on the user equipment.
  • a base station which is applied to a communication system in which a user equipment is handed over from a source base station to the base station, where the base station includes:
  • a detecting unit detecting an uplink signal sent by the user equipment for switching
  • the notification sending unit sends a notification message to the source base station according to the detection result; and causes the source base station to switch the user equipment according to the notification message.
  • a user equipment which is applied to a communication system in which the user equipment is switched from a source base station to a target base station, where the user equipment includes:
  • a message receiving unit receiving a trigger message sent by the source base station
  • a signal sending unit configured to send an uplink signal for handover according to the trigger message; causing one or more other base stations to send a notification message to the source base station according to the detecting of the uplink signal, and the source base station according to the The notification message switches the user equipment.
  • a method for configuring an uplink signal includes: the first base station and the second base station negotiate configuration information of an uplink signal of the user equipment;
  • the first base station sends the configuration information of the uplink signal to the user equipment, so that the user equipment sends the uplink signal according to the configuration information, and the second base station detects the uplink according to the configuration information. signal.
  • a method for configuring an uplink signal includes: the second base station and the first base station negotiate configuration information of an uplink signal of the user equipment;
  • the second base station detects an uplink signal sent by the user equipment according to the configuration information.
  • a method for configuring an uplink signal includes: receiving, by a user equipment, configuration information of an uplink signal sent by a first base station; And transmitting an uplink signal according to the configuration information; causing one or more second base stations to detect the uplink signal.
  • a base station where the base station includes:
  • the negotiation unit negotiates configuration information of the uplink signal of the user equipment with the one or more second base stations; and the information sending unit sends the configuration information of the uplink signal to the user equipment.
  • a base station where the base station includes:
  • a negotiating unit configured to negotiate, with the first base station, configuration information of an uplink signal of the user equipment
  • the detecting unit detects the uplink signal sent by the user equipment according to the configuration information.
  • a user equipment configured to include: an information receiving unit, configured to receive configuration information of an uplink signal sent by a first base station;
  • the signal sending unit sends an uplink signal according to the configuration trigger message, so that one or more second base stations detect the uplink signal.
  • a communication system comprising a user equipment as described above, and a base station as described above.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform an uplink signal based switching method as described above in the base station , or the configuration method of the uplink signal.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an uplink signal based switching method, or an uplink signal, as described above, in a base station Configuration method.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform uplink signal based on the user equipment as described above The switching method or the method of configuring the uplink signal.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an uplink signal based switching method, or uplink, as described above, in a user equipment Signal configuration method.
  • An advantageous effect of the embodiment of the present invention is that the source base station sends a trigger message to trigger the user equipment to send an uplink signal for handover, receives a notification message sent by one or more other base stations according to the uplink signal, and determines the target base station according to the notification message. And switching the user equipment; the decision of the handover can be accelerated based on the measurement of the uplink signal to meet the handover requirements in different scenarios.
  • FIG. 1 is a flowchart of a method for switching based on an uplink signal according to Embodiment 1 of the present invention
  • FIG. 2 is a diagram showing an example of a handover scenario according to Embodiment 1 of the present invention.
  • FIG. 3 is another flowchart of a method for switching based on an uplink signal according to Embodiment 1 of the present invention
  • FIG. 5 is another flowchart of a method for switching based on an uplink signal according to Embodiment 1 of the present invention.
  • FIG. 6 is an interaction diagram of configuration information between base stations according to Embodiment 1 of the present invention.
  • FIG. 8 is a flowchart of a method for switching an uplink signal according to Embodiment 2 of the present invention.
  • FIG. 9 is another flowchart of a method for switching based on an uplink signal according to Embodiment 2 of the present invention.
  • FIG. 10 is a flowchart of a method for switching an uplink signal according to Embodiment 3 of the present invention.
  • FIG. 11 is another flowchart of a method for switching an uplink signal according to Embodiment 3 of the present invention
  • FIG. 12 is a schematic diagram of a configuration of a base station according to Embodiment 4 of the present invention.
  • Figure 13 is a block diagram showing another structure of a base station according to Embodiment 4 of the present invention.
  • Figure 14 is a block diagram showing the structure of a base station according to Embodiment 5 of the present invention.
  • Figure 15 is a block diagram showing another structure of a base station according to Embodiment 5 of the present invention.
  • FIG. 16 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention.
  • FIG. 17 is another schematic structural diagram of a user equipment according to Embodiment 6 of the present invention.
  • Figure 21 is a block diagram showing the structure of a base station according to Embodiment 10 of the present invention.
  • Figure 22 is a block diagram showing the structure of a base station according to Embodiment 11 of the present invention.
  • FIG. 23 is a schematic structural diagram of a user equipment according to Embodiment 12 of the present invention.
  • Figure 24 is a block diagram showing the configuration of a communication system in accordance with Embodiment 13 of the present invention. detailed description
  • the embodiment of the present invention provides a handover method based on an uplink signal, which is applied to a communication system in which a user equipment switches from a source base station to a target base station; the handover method is described in detail below from the source base station side.
  • FIG. 1 is a flowchart of a method for switching an uplink signal according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 101 The source base station sends a trigger message to the user equipment, to trigger the user equipment to send an uplink signal for handover.
  • Step 102 The source base station receives a notification message sent by one or more other base stations according to the detection of the uplink signal.
  • Step 103 The source base station determines the target base station from one or more other base stations according to the notification message, and performs handover on the user equipment.
  • the base station may send a trigger message to the user equipment.
  • the user equipment may send the uplink signal according to the predefined configuration information, or the configuration information that has been obtained, or the configuration information included in the trigger message.
  • the specific implementation manner may be determined according to the actual situation, and the present invention is not limited thereto.
  • the configuration information may include the frequency, resources, and the like of the uplink signal transmission.
  • the present invention is not limited thereto, and specific content may be determined according to an actual uplink signal; the specific content of the configuration information will be described in detail later.
  • one or more other base stations may detect an uplink signal sent by the user equipment, and may send a notification message to the source base station according to the result of the detection.
  • the source base station may determine the target base station from one or more other base stations according to one or more received notification messages (or may also refer to other base station conditions, such as the case of a load), and switch the user equipment.
  • the handover can be determined based on the uplink signal, and the handover decision of the user equipment can be accelerated in the manner of the handover decision based on the downlink signal, which satisfies the handover requirement in different scenarios.
  • FIG. 2 is a diagram showing an example of a handover scenario according to an embodiment of the present invention.
  • the user equipment 203 when the user equipment 203 can move from left to right, handover from the source base station 201 to the target base station 202 may be triggered.
  • Figure 2 Only one scenario of the present embodiment is shown schematically, but the present invention is not limited thereto.
  • the cell 205 may also be a small cell included in the cell 204, and a specific scenario may be determined according to actual conditions.
  • the source base station may negotiate with other base stations, so that the base station side knows the configuration information of the uplink signal of the user equipment.
  • the source base station may also send a message to the other base station, where the message includes configuration information of the uplink signal of one or more user equipments, so that the base station side knows the configuration information of the uplink signal of the user equipment.
  • the source base station may send configuration information of the uplink signal to the user equipment, or the source base station may include configuration information of the uplink signal in the trigger message, so that the user equipment side knows the configuration information of the uplink signal.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof:
  • the information may not be available.
  • the information indicating that the user equipment is a fast user or the information of a medium-speed user, etc. so that only the fast user or the medium-speed user needs to send an uplink signal according to the configuration information of the uplink signal, and other types of users do not need to send the uplink.
  • the signal is gone.
  • the resource information includes: one of a time domain resource, a frequency domain resource, an air domain resource, and the like, or a combination thereof.
  • the characteristic information of the uplink signal may specifically include: generating sequence information of the uplink signal.
  • the uplink signal may be a preamble signal for random access; the feature information of the uplink signal may include at least: at least one of a PRACH-Config, a RACH-ConfigCommon or an ACH-ConfigDedicated information entity.
  • Information specific details can refer to TS36.331 vl l.2.0.
  • the uplink signal may be a sounding reference signal (SRS); the feature information of the uplink signal may include at least one of: SoundingRS-UL-Config information entities; for details, refer to TS36.331 vll. .2.0.
  • SRS sounding reference signal
  • the uplink signal may be a demodulation reference signal (DM-RS, demodulation reference signal).
  • DM-RS demodulation reference signal
  • the feature information of the uplink signal may include at least: at least one of the DM-RS-Config information entities; for details, refer to TS36.331 vll.2.0.
  • the configuration information of the uplink signal may be different from the user equipment (for example, the uplink signal configuration information of different user equipments is different); therefore, the base station side needs to configure different information for different user equipments.
  • the cell may be differentiated (for example, the configuration information of the uplink signals of different cells is different, but all user equipments in the same cell are the same); therefore, the base station side needs to configure different information for user equipments of different cells; Configure the same information for user equipment in the same cell.
  • the base station may be distinguished (for example, the uplink signal configuration information of different base stations is different, but the configuration information of the uplink signals of all user equipments of all cells under the same base station is the same). Therefore, the base station side needs to configure different information for user equipments in different base stations; the same information can be configured for user equipments in the same base station.
  • one part may distinguish the user, one part is to distinguish the cell, and the other part is to distinguish the base station.
  • the trigger message may include configuration information of the uplink signal
  • the user equipment may obtain configuration information of the uplink signal.
  • the source base station may send configuration information of the uplink signal to the user equipment.
  • FIG. 3 is another flowchart of a method for switching an uplink signal according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • Step 301 The source base station sends configuration information of the uplink signal to the user equipment.
  • Step 302 The source base station sends a trigger message to the user equipment.
  • Step 303 The user equipment sends an uplink signal for switching according to the trigger message.
  • Step 304 The other base station detects the uplink signal.
  • Step 305 The source base station receives a notification message sent by one or more other base stations according to the detection of the uplink signal.
  • Step 306 The source base station determines the target base station from one or more other base stations according to the notification message, and performs handover on the user equipment.
  • step 301 there is no order relationship between step 301 and step 302.
  • the configuration information may be sent before the trigger message, or after the trigger message, or may be sent simultaneously. Specific implementations can be determined based on actual conditions.
  • the configuration information of the uplink signal between the base stations may be defined in advance, or may be obtained in advance, and the specific implementation manner may be determined according to actual conditions.
  • a message may be sent between the base stations to learn configuration information of the uplink signal of the user equipment.
  • 4 is another flowchart of a method for switching an uplink signal according to an embodiment of the present invention, as shown in FIG. 4, The method includes:
  • Step 401 The source base station sends configuration information of the uplink signal of the user equipment to other base stations.
  • Step 402 The source base station sends configuration information of the uplink signal to the user equipment.
  • Step 403 The source base station sends a trigger message to the user equipment.
  • Step 404 The user equipment sends an uplink signal for switching according to the trigger message.
  • Step 405 The other base station detects the uplink signal.
  • Step 406 The source base station receives a notification message sent by one or more other base stations according to the detection of the uplink signal.
  • Step 407 The source base station determines the target base station from one or more other base stations according to the notification message, and performs handover on the user equipment.
  • the steps 401, 402, and 403 have no order relationship, and the specific implementation manner may be determined according to actual conditions.
  • the configuration information of the uplink signal may be directly sent by the base station through one or more messages.
  • FIG. 5 is another flow diagram of an uplink signal-based handover method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • Step 501 The source base station (base station A) negotiates configuration information of the uplink signal of the user equipment with at least one other base station (base station B).
  • Step 502 The source base station sends configuration information of an uplink signal of at least one user equipment to other base stations.
  • Step 504 The other base station sends a notification message to the source base station according to the detected condition.
  • Step 505 The source base station triggers a handover process of the user equipment according to the notification message.
  • the source base station and the other base stations negotiate the configuration information of the uplink signal of the user equipment, which may include: the source base station sends a first message to the other base station, where the first message includes the uplink of one or more user equipments of the source base station.
  • FIG. 6 is an interaction flowchart of configuration information of uplink signals between base stations.
  • the configuration information of the uplink signal can be exchanged between the base station A and the base station B.
  • Each base station can determine uplink signal configuration information of its user equipment.
  • base station A transmits message 1 (first message) containing the uplink signal configuration information of its user equipment to base station B.
  • the base station B replies with an acknowledgment message, or a message 2 (second message) containing uplink signal configuration information of the user equipment of the base station B.
  • message 1 first message
  • second message containing uplink signal configuration information of the user equipment of the base station B.
  • the base station A can send different parts of the uplink signal configuration information of its user equipment to the base station B by using different messages (such as message 1, message 1 ', message 1 ", etc.).
  • the base station B can also use different The message (e.g., message 2, message 2', message 2, etc.) replies to the base station with different portions of the uplink signal configuration information of its user equipment.
  • the message 1 (the first message) may be an X2 setup request message, or an eNB configuration update message; and the message 2 (the second message) may be an X2 An X2 setup response message, or an eNB configuration update message.
  • Message on the specific content may refer to 3GPP TS36.423 vll.3.0 o the present invention is not limited thereto, a first message may be a message or other message has been newly defined, the second message may be an existing or other Message or newly defined message.
  • each base station can interact with the multiple base stations to configure the uplink signal configuration information, and finally determine the uplink signal configuration information of the user equipment according to the information of the interaction. Therefore, the uplink signal configuration information used by the base station to interact with other base stations may be different from the uplink signal configuration information of the user equipment that is ultimately determined by the base station (for example, the base station may adjust accordingly according to the load, etc.), and the final decision information is Configuration information used by the user equipment to send uplink signals.
  • the source base station may send a third message to the other base station, where the third message includes configuration information of uplink signals of one or more user equipments of the source base station.
  • the third message includes configuration information of uplink signals of one or more user equipments of the source base station.
  • the source base station sends the third message to other base stations.
  • the method may further include: receiving, by the source base station, a fourth message sent by another base station, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • the fourth message includes configuration information of the reason for the rejection and/or the uplink signal of the recommended user equipment.
  • base station A transmits configuration information of the uplink signal to base station B.
  • Message 3 (third message) contains the uplink signal configuration information of at least one user equipment. After base station A sends message 3, base station B can reject it.
  • the reason for the refusal may include: the base station B cannot detect the uplink signal of the user equipment according to the configuration information in the message 3, or the interference to the uplink signal is serious, or the configuration of the uplink signal of the user equipment and other The uplink signal configuration conflict of the user equipment of the cell, and the like.
  • the base station B can reject the configuration information of the uplink signals of all users or some users in the message 3 by replying to the message 4 (fourth message).
  • the message 4 may include a reason for rejection (e.g., an inappropriate uplink signal configuration, or an uplink signal-based handover mechanism, etc.), and/or recommended uplink signal configuration information for the corresponding user.
  • message 3 (third message) may be a handover request message
  • message 4 (fourth message) may be a handover preparation failure message.
  • the third message may also It is another existing message or a newly defined message
  • the fourth message may be other existing messages or newly defined messages.
  • Fig. 5 shows both step 501 and step 502, but the invention is not limited thereto.
  • step 501 may be performed only, or step 502 may only be performed (refer to the case of Fig. 4), or neither step 501 nor step 502 may be performed (refer to the case of Fig. 3).
  • step 503 on the source base station (base station A) side: after determining the configuration of the uplink signal of one user equipment (for example, step 503 is performed after step 501, or step 501 is not performed, and step 503 is performed after step 502.
  • the source base station may trigger the user equipment to send an uplink signal in the following manner.
  • the base station A may send the configuration information of the uplink signal of the user equipment to the user equipment by using at least one message. For example, all the uplink signal configuration information of the user equipment is sent to the user equipment by using a message, or the uplink signal configuration information of the user equipment is divided into multiple parts (each part may have overlapping content, or may be completely different) Part), and send different parts to the user device through different messages. It should be noted that the transmission of the configuration information may be after step 501, or after step 501 is not performed, only after step 502, or after steps 501 and 502, or OAM is triggered, or at any time.
  • the base station A may send a message 5 (which may be referred to as an uplink signal trigger message) to trigger the user equipment to send the uplink signal.
  • a message 5 (which may be referred to as an uplink signal trigger message) to trigger the user equipment to send the uplink signal.
  • all or part of the uplink signal configuration information may also be sent to the user equipment through the message 5.
  • a message 5 can only trigger the transmission of an uplink signal (as shown in Figure 5, the second message 5 indicated by a dotted line triggers the transmission of another uplink signal);
  • a message 5 can trigger the transmission of multiple uplink signals.
  • the resource used for transmitting the uplink signal may be configured by using a configuration message of the uplink signal, or may be configured by an uplink signal trigger message.
  • step 503 on the other base station (base station B) side: If the base station B can accept the configuration information of the uplink signal in the message 3, at least one of the following operations can be performed:
  • the base station B may activate the frequency or the cell, at least the frequency or the cell may be activated.
  • step 504 if the base station B detects the uplink signal of the user equipment before the set timer expires, the base station B may send a message 6 (notification message) to the base station A, thereby notifying the base station A that the base station B has detected The uplink signal of the user equipment.
  • a message 6 notification message
  • the base station B can judge the user equipment according to preset conditions.
  • the condition that the uplink signal of the user equipment is detected may be: the uplink signal of the user equipment is correctly received a certain number of times, and/or the number of correctly received users in the uplink signal, the signal strength or the signal quality exceeds a certain threshold. Exceeded a certain threshold.
  • the message 6 may include at least one of the following information:
  • the signal strength or signal quality of the uplink signal of the user equipment may be an absolute value or a relative value (for example, relative to a certain threshold, that is, the signal strength or signal quality of the uplink signal of the user equipment is reduced. Go to the threshold; and the threshold can be set by base station B or OAM.
  • the message may be a 6 handover request acknowledgment message (handover request acknowledge) 0 message on the specific content may refer to 3GPP TS36.423 vll.3.0.
  • the present invention is not limited thereto, and may be other existing messages or newly defined messages.
  • step 503 it is determined that the condition that the uplink signal of the user equipment can be detected is not satisfied, and the base station B may stop detecting the uplink signal of the user equipment, or to the base station. A replies with a message indicating that the upstream signal of the user equipment has not been detected.
  • base station A receives message 6 sent by base station B.
  • base station A may also receive messages from other base stations.
  • the base station A can select a suitable handover target for the user equipment according to the received message 6 from the at least one base station, and then initiate the handover procedure of the user equipment whose uplink signal is detected by the base station B or other base station.
  • messages 5 and 6 are a handover request message and a handover request acknowledgement message, respectively, in step 5, base station A sends a handover command to the corresponding user equipment to initiate the handover procedure. Otherwise, the base station A initiates the handover process of the user equipment by sending a handover request message to the target base station.
  • the time required for receiving the uplink signal of the user equipment is short. Therefore, the system can speed up the user's handover decision by measuring the uplink signal.
  • the source base station sends a trigger message to trigger the user equipment to send an uplink signal for handover, receives a notification message sent by one or more other base stations according to the uplink signal, and determines the target base station and the user according to the notification message.
  • the device switches; the decision of the handover can be accelerated based on the measurement of the uplink signal Determined to meet the switching needs in different scenarios.
  • the embodiment of the present invention provides a handover method based on an uplink signal, which is applied to a communication system in which a user equipment is switched from a source base station to a target base station.
  • This embodiment is described from the target base station side, and the same content as that in Embodiment 1 is not described again. .
  • FIG. 8 is a flowchart of a method for switching an uplink signal according to an embodiment of the present invention. As shown in FIG. 8, the method includes:
  • Step 801 The target base station detects an uplink signal sent by the user equipment for handover.
  • Step 802 The target base station sends a notification message to the source base station according to the detection of the uplink signal, so that the source base station switches the user equipment according to the notification message.
  • FIG. 9 is another flowchart of a method for switching based on an uplink signal according to an embodiment of the present invention. As shown in FIG. 9, the method includes:
  • Step 901 The target base station detects an uplink signal sent by the user equipment for handover.
  • Step 902 The target base station sends a notification message to the source base station according to the detection of the uplink signal, so that the source base station switches the user equipment according to the notification message.
  • the method may further include:
  • Step 9001 The target base station negotiates configuration information of the uplink signal of the user equipment with the source base station.
  • the step 9001 may include: the target base station receives the first message sent by the source base station, where the first message includes configuration information of the uplink signal of the user equipment of the source base station; and the target base station replies with the second message to the source base station;
  • the second message is an acknowledgment message or configuration information of an uplink signal of the user equipment including the target base station.
  • the first message may be an X2 setup request message or a base station configuration update message
  • the second message may be an X2 setup response message or a base station configuration update message.
  • the present invention is not limited thereto, and may be other messages or newly defined messages.
  • the method may further include:
  • Step 9002 The target base station receives a third message sent by the source base station, where the third message includes configuration information of an uplink signal of one or more user equipments of the source base station.
  • the method may further include:
  • Step 9003 The target base station sends a fourth message to the source base station, where the fourth message is used to reject configuration information of uplink signals of all or part of user equipments in the third message.
  • the fourth message may include a reason for the rejection, and/or configuration information of the uplink signal of the recommended user equipment.
  • the third message may be a handover request message
  • the fourth message may be a handover preparation failure message.
  • the present invention is not limited thereto, and may be other messages or newly defined messages.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof: Transmit power of the signal; carrier frequency information or cell information of the uplink signal; target carrier frequency information or cell information of the user equipment handover; identification information of the user equipment; applicable user type information of the user equipment; resource information for transmitting the uplink signal; The number of times or time information of the signal; the characteristic information of the uplink signal.
  • the time or time information of the uplink signal may specifically include: one of a number of times the uplink signal should be sent, a maximum number of transmissions, and a minimum number of transmissions; or a combination of time period information, minimum time length, and One of the maximum length of time or a combination thereof.
  • the feature information of the uplink signal specifically includes sequence information for generating an uplink signal.
  • the present invention is not limited thereto, and the feature information of the uplink signal may specifically include other information, and specific content may be determined according to actual conditions.
  • the uplink signal may be a preamble sequence signal for random access; the feature information of the uplink signal includes at least: at least one of: a PRACH-Config, a RACH-ConfigCommon or an ACH-ConfigDedicated information entity; or, uplink
  • the signal is a listening reference signal; the characteristic information of the uplink signal includes at least: at least one of the SoundingRS-UL-Config information entities.
  • the uplink signal is a demodulation reference signal, and the feature information of the uplink signal includes at least: at least one information in the DM-RS-Config information entity.
  • the configuration information of the uplink signal may be differentiated from the user equipment; or the cell is differentiated; or the base station is distinguished.
  • one part may distinguish the user, one part is to distinguish the cell, and the other part is to distinguish the base station.
  • the specific configuration method can be determined according to the actual situation.
  • the method may further include: the target base station activates a frequency at which the uplink signal is located, or a cell receiver corresponding to the frequency.
  • the method may further include: setting, by the target base station, a timer; and, the target base station detecting the uplink signal before the timer expires.
  • the method may further include: determining, by the target base station, whether the user equipment can perform handover according to the uplink signal; and sending a notification message to the source base station according to the determination result.
  • the target base station determines, according to the uplink signal, whether the user equipment can perform the handover, and specifically includes: determining that the user equipment can perform handover when the detected uplink signal meets a preset condition.
  • the preset condition may include: the uplink signal is correctly received a predetermined number of times, and/or the number of the signal strength or the signal quality exceeding the preset threshold exceeds a predetermined value in the correctly received uplink signal.
  • the notification message may include one or a combination of the following information: an identifier of the user equipment detected by the target base station by the target base station; a number of detected uplink signals; a signal of the detected uplink signal Intensity or signal quality; average signal strength or average signal quality of the detected uplink signal; threshold value of signal strength or signal quality used to determine the uplink signal can be detected.
  • the at least one base station detects the uplink signal sent by the user equipment, and sends a notification message to the source base station according to the detection situation, so that the source base station determines the target base station and performs handover on the user equipment according to the notification message; To speed up the decision on the handover and meet the handover requirements in different scenarios.
  • Example 3
  • the embodiment of the present invention provides a handover method based on an uplink signal, which is applied to a communication system in which a user equipment is switched from a source base station to a target base station.
  • This embodiment is described from the user equipment side, and the same content as that in Embodiment 1 is not described again. .
  • FIG. 10 is a flowchart of a method for switching based on an uplink signal according to an embodiment of the present invention. As shown in FIG. 10, the method includes:
  • Step 1001 The user equipment receives a trigger message sent by the source base station.
  • Step 1002 The user equipment sends an uplink signal for handover according to the trigger message.
  • the one or more other base stations send a notification message to the source base station according to the detection of the uplink signal, and the source base station switches the user equipment according to the notification message.
  • the trigger message may include configuration information of the uplink signal
  • the user equipment may obtain configuration information of the uplink signal.
  • the source base station may send configuration information of the uplink signal to the user equipment.
  • FIG. 11 is another flowchart of a method for switching an uplink signal according to an embodiment of the present invention. As shown in FIG. 11, the method includes:
  • Step 1101 The user equipment receives configuration information of an uplink signal sent by the source base station.
  • Step 1102 The user equipment receives a trigger message sent by the source base station.
  • Step 1103 The user equipment sends an uplink signal for handover according to the trigger message.
  • the user equipment may send one or more uplink signals according to the trigger message.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof: the transmit power of the uplink signal, the carrier frequency information or the cell information of the uplink signal, and the target carrier frequency information or cell of the user equipment handover. Information; identification information of the user equipment; applicable user type information of the user equipment; resource information for transmitting an uplink signal; number of times or time information of the uplink signal; characteristic information of the uplink signal.
  • the time or time information of the uplink signal may specifically include: one of a number of times the uplink signal should be sent, a maximum number of transmissions, and a minimum number of transmissions; or a combination of time period information, minimum time length, and One of the maximum length of time or a combination thereof.
  • the feature information of the uplink signal may specifically include sequence information for generating an uplink signal.
  • the present invention is not limited thereto, and the feature information of the uplink signal may specifically include other information, and specific content may be determined according to actual conditions.
  • the uplink signal may be a preamble sequence signal for random access; the feature information of the uplink signal includes at least: at least one of: a PRACH-Config, a RACH-ConfigCommon or an ACH-ConfigDedicated information entity; or, uplink
  • the signal may be a listening reference signal; the characteristic information of the uplink signal includes at least: at least one of the SoundingRS-UL-Config information entities.
  • the uplink signal may be a demodulation reference signal, and the feature information of the uplink signal includes at least: a DM-RS-Config information entity At least one message.
  • the configuration information of the uplink signal may be differentiated from the user equipment, or differentiated from the cell, or differentiated from the base station.
  • one part may distinguish the user, one part is to distinguish the cell, and the other part is to distinguish the base station.
  • the user equipment sends an uplink signal, and at least one base station detects the uplink signal, and then sends a notification message to the source base station according to the detection situation, so that the source base station determines the target base station and performs handover on the user equipment according to the notification message;
  • the measurement is used to speed up the decision on the handover to meet the handover requirements in different scenarios.
  • the embodiment of the invention provides a base station, which is applied to a communication system in which a user equipment switches from the base station to a target base station.
  • This embodiment corresponds to the handover method of Embodiment 1, and the same content will not be described again.
  • FIG. 12 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • the base station 1200 includes: a message transmitting unit 1201, a notification receiving unit 1202, and a switching unit 1203. Other parts of base station 1200 may refer to the prior art.
  • the message sending unit 1201 is configured to send a trigger message to the user equipment to trigger the user equipment to send an uplink signal for handover.
  • the notification receiving unit 1202 receives a notification message sent by one or more other base stations according to the detection of the uplink signal.
  • the switching unit 1203 determines the target base station from one or more other base stations according to the notification message, and performs handover on the user equipment.
  • FIG. 13 is a schematic diagram of another structure of a base station according to an embodiment of the present invention.
  • the base station 1300 includes: a message transmitting unit 1201, a notification receiving unit 1202, and a switching unit 1203, as described above.
  • the base station 1300 may further include: a negotiating unit 1304, configured to negotiate configuration information of an uplink signal of the user equipment with other base stations.
  • the negotiating unit 1304 may specifically include: a first sending unit and a first receiving unit.
  • the first sending unit is configured to send a first message to the other base station, where the first message includes configuration information of an uplink signal of the user equipment of the source base station; the first receiving unit is configured to receive a second message replied by the other base station; It is a configuration message for confirming a message or an uplink signal of a user equipment of another base station.
  • the base station 1300 may further include: a second sending unit 1305, configured to send, to other base stations, a third message, where the third message includes configuration information of an uplink signal of one or more user equipments of the base station.
  • a second sending unit 1305 configured to send, to other base stations, a third message, where the third message includes configuration information of an uplink signal of one or more user equipments of the base station.
  • the base station 1300 may further include: a second receiving unit 1306, configured to receive a fourth message sent by another base station, where the fourth message is used to reject an uplink signal of all or part of user equipments in the third message. Configuration information.
  • the trigger message sent by the message sending unit 1201 includes configuration information of the uplink signal.
  • the base station may further include: an information sending unit, configured to send configuration information of the uplink signal to the user equipment.
  • the source base station sends a trigger message to trigger the user equipment to send an uplink signal for handover, receives a notification message sent by one or more other base stations according to the uplink signal, and determines the target base station and the user according to the notification message.
  • the device performs handover; the decision of the handover can be accelerated based on the measurement of the uplink signal to meet the handover requirements in different scenarios.
  • the embodiment of the invention provides a base station, which is applied to a communication system in which a user equipment switches from a source base station to the base station.
  • This embodiment corresponds to the switching method of Embodiment 2, and the same content will not be described again.
  • FIG. 14 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • the base station 1400 includes: a detecting unit 1401 and a notification transmitting unit 1402. Other parts of the base station 1400 can refer to the prior art.
  • the detecting unit 1401 is configured to detect an uplink signal sent by the user equipment for switching, and the notification sending unit 1402 is configured to send a notification message to the source base station according to the detecting of the uplink signal, so that the source base station switches the user equipment according to the notification message.
  • FIG. 15 is a schematic diagram of another structure of a base station according to an embodiment of the present invention.
  • the base station 1500 includes: a detecting unit 1401 and a notification transmitting unit 1402, as described above.
  • the base station 1500 may further include: a negotiating unit 1503, configured to negotiate configuration information of an uplink signal of the user equipment with the source base station.
  • the negotiating unit 1503 may specifically include: a third receiving unit and a third sending unit.
  • the third receiving unit is configured to receive a first message sent by the source base station, where the first message includes configuration information of an uplink signal of the user equipment of the source base station, and the third sending unit is configured to reply the second message to the source base station; It is a confirmation message or configuration information of an uplink signal of a user equipment including the base station.
  • the base station 1500 may further include: a fourth receiving unit 1504, configured to receive a third message sent by the source base station, where the third message includes configuration information of uplink signals of one or more user equipments of the source base station.
  • a fourth receiving unit 1504 configured to receive a third message sent by the source base station, where the third message includes configuration information of uplink signals of one or more user equipments of the source base station.
  • the base station 1500 may further include: a fourth sending unit 1505, configured to send, to the source base station, a fourth message, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • a fourth sending unit 1505 configured to send, to the source base station, a fourth message, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • the base station may further include: an activation unit, configured to activate a frequency at which the uplink signal is located, or a cell receiver corresponding to the frequency.
  • the base station may further include: a timing setting unit configured to set a timer; and, the detecting unit 1401 detects the uplink signal before the timer expires.
  • the base station may further include: a determining unit, configured to determine, according to the uplink signal, whether the user equipment can perform handover; and, the notification sending unit 1402 sends a notification message to the source base station according to the determination result.
  • At least one base station detects an uplink signal sent by the user equipment, according to the detection situation. Sending a notification message to the source base station, so that the source base station determines the target base station and performs handover according to the notification message; the decision of the handover may be accelerated based on the measurement of the uplink signal, and the handover requirement in different scenarios is met.
  • Example 6
  • the embodiment of the invention provides a user equipment, which is applied to a communication system in which the user equipment switches from a source base station to a target base station.
  • This embodiment corresponds to the switching method of Embodiment 3, and the same content is not described again.
  • FIG. 16 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment 1600 includes: a message receiving unit 1601 and a signal transmitting unit 1602.
  • Other parts of user equipment 1600 may refer to the prior art.
  • the message receiving unit 1601 is configured to receive a trigger message sent by the source base station, and the signal sending unit 1602 is configured to send, according to the trigger message, an uplink signal for handover, so that one or more other base stations send the source base station according to the detection of the uplink signal.
  • the notification message is sent, and the source base station switches the user equipment according to the notification message.
  • the trigger message received by the message receiving unit 1601 includes configuration information of the uplink signal.
  • the user equipment receives configuration information of an uplink signal sent by the base station.
  • FIG. 17 is another schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in Figure 17, the user equipment
  • 1700 includes: a message receiving unit 1601 and a signal transmitting unit 1602, as described above.
  • the user equipment 1700 may further include: an information receiving unit 1703, configured to receive configuration information of an uplink signal sent by the source base station.
  • the signal sending unit 1602 may send one or more uplink signals according to the trigger message.
  • the user equipment sends an uplink signal, and at least one base station detects the uplink signal, and then sends a notification message to the source base station according to the detection situation, so that the source base station determines the target base station and performs handover on the user equipment according to the notification message;
  • the measurement is used to speed up the decision on the handover to meet the handover requirements in different scenarios.
  • the embodiment of the present invention provides a method for configuring an uplink signal.
  • the configuration method is described in detail below from the first base station side, and the same content as the previous embodiment is not described again.
  • FIG. 18 is a flowchart of a configuration method of an embodiment of the present invention. As shown in FIG. 18, the method includes: Step 1801: A first base station negotiates configuration information of an uplink signal of a user equipment with one or more second base stations;
  • Step 1802 The first base station sends configuration information of the uplink signal to the user equipment, so that the user equipment sends an uplink signal according to the configuration information, and the second base station detects the uplink signal according to the configuration information.
  • the first base station and the second base station in the step 801, the configuration information of the uplink signal of the user equipment, where the first base station sends the first message to the second base station, where the first message includes the first message.
  • the method may further include: the first base station transmitting, to the second base station, a third message, where the third message includes configuration information of uplink signals of one or more user equipments of the first base station.
  • the method may further include: receiving, by the first base station, a fourth message sent by the second base station, where the fourth message is used to reject configuration of an uplink signal of all or part of user equipments in the third message. information.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof: the transmit power of the uplink signal, the carrier frequency information or the cell information of the uplink signal, and the target carrier frequency information or cell of the user equipment handover. Information; identification information of the user equipment; applicable user type information of the user equipment; resource information for transmitting an uplink signal; number of times or time information of the uplink signal; characteristic information of the uplink signal.
  • the number of times or time information of the uplink signal may specifically include: one of a number of times the uplink signal should be sent, a maximum number of times of transmission, and a minimum number of times of transmission; or a combination of time period information for allowing uplink signal transmission, One or a combination of the length of time and the maximum length of time.
  • the feature information of the uplink signal may specifically include sequence information that generates an uplink signal.
  • the invention is not limited thereto.
  • the uplink signal may be a preamble sequence signal for random access; the feature information of the uplink signal may include at least one of: PRACH-Config, RACH-ConfigCommon or RACH-ConfigDedicated information entity; or, the uplink signal
  • the sounding reference signal may be at least one of: a sounding RS-UL-Config information entity.
  • the uplink signal may be a demodulation reference signal, and the feature information of the uplink signal may include at least: at least one of the DM-RS-Config information entities.
  • the method may further include: the first base station sends a trigger message to the user equipment to trigger the user equipment to send an uplink signal for handover; and the first base station receives one or more second base stations according to the uplink signal.
  • the notification message sent by the probe; the first base station determines the target base station from the one or more second base stations according to the notification message, and performs handover on the user equipment.
  • the notification message may include one or a combination of the following information: an identifier of the user equipment detected by the second base station by the second base station; a number of detected uplink signals; a signal of the detected uplink signal Intensity or signal quality; average signal strength or average signal quality of the detected uplink signal; weighted average signal strength or weighted average signal quality of the detected uplink signal; signal strength or signal quality used to determine when the uplink signal can be detected Threshold.
  • the first base station negotiates the configuration information of the uplink signal of the user equipment with the one or more second base stations, and the first base station sends the configuration information of the uplink signal to the user equipment, which can meet the requirements in different scenarios.
  • Example 8
  • the embodiment of the present invention provides a method for configuring an uplink signal.
  • the configuration method is described in detail below from the second base station side, and the same content as the previous embodiment is not described herein.
  • FIG. 19 is a flowchart of a configuration method according to an embodiment of the present invention. As shown in FIG. 19, the method includes: Step 1901, the second base station negotiates configuration information of an uplink signal of the user equipment with the first base station; Step 1902, The base station detects the uplink signal sent by the user equipment according to the configuration information.
  • the method may include: receiving, by the second base station, the first message sent by the first base station, where the first message includes the first message The configuration information of the uplink signal of the user equipment of the base station; the second base station replies with the second message to the first base station; the second message is an acknowledgment message or configuration information of an uplink signal of the user equipment of the second base station.
  • the method may further include: receiving, by the second base station, a third message sent by the first base station, where the third message includes configuration information of an uplink signal of one or more user equipments of the first base station.
  • the method may further include: sending, by the second base station, a fourth message to the first base station, where the fourth message is used to reject configuration information of the uplink signals of all or part of the user equipments in the third message.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof: the transmit power of the uplink signal, the carrier frequency information or the cell information of the uplink signal, and the target carrier frequency information or cell of the user equipment handover. Information; identification information of the user equipment; applicable user type information of the user equipment; resource information for transmitting an uplink signal; number of times or time information of the uplink signal; characteristic information of the uplink signal.
  • the method may further include: sending a notification message to the first base station according to the detecting of the uplink signal; and causing the first base station to switch the user equipment according to the notification message.
  • the method may further include: the second base station activates a frequency at which the uplink signal is located, or a cell receiver corresponding to the frequency.
  • the first base station negotiates the configuration information of the uplink signal of the user equipment with the one or more second base stations, and the first base station sends the configuration information of the uplink signal to the user equipment, and the second base station detects the uplink signal. ; can meet the needs of different scenarios.
  • Example 9
  • the embodiment of the present invention provides a method for configuring an uplink signal.
  • the configuration method is described in detail below from the user equipment side, and the same content as the previous embodiment is not described herein.
  • FIG. 20 is a flowchart of a configuration method according to an embodiment of the present invention. As shown in FIG. 20, the method includes: Step 2001: A user equipment receives configuration information of an uplink signal sent by a first base station;
  • Step 2002 The user equipment sends an uplink signal according to the configuration information, so that one or more second base stations detect the uplink signal.
  • the configuration information of the uplink signal may include any one of the following information or a combination thereof: Transmit power of the signal; carrier frequency information or cell information of the uplink signal; target carrier frequency information or cell information of the user equipment handover; identification information of the user equipment; applicable user type information of the user equipment; resource information for transmitting the uplink signal; The number of times or time information of the signal; the characteristic information of the uplink signal.
  • the method may further include: the user equipment receives the trigger message sent by the first base station; and, the user equipment sends the uplink signal according to the trigger message and the configuration information.
  • the user equipment receives the configuration information of the uplink signal sent by the first base station, and the user equipment sends the uplink signal, and the second base station detects the uplink signal, which can meet the requirements in different scenarios.
  • Example 10
  • FIG. 21 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station 2100 includes: a negotiating unit 2101 and an information transmitting unit 2102. Other parts of the base station 2100 can refer to the prior art.
  • the negotiation unit 2101 is configured to negotiate configuration information of the uplink signal of the user equipment with the one or more second base stations.
  • the information sending unit 2102 is configured to send configuration information of the uplink signal to the user equipment.
  • the negotiating unit may specifically include: a first sending unit and a first receiving unit.
  • the first sending unit sends a first message to the second base station, where the first message includes configuration information of an uplink signal of one or more user equipments of the base station 2100; the first receiving unit receives a second message replied by the second base station;
  • the message may be an acknowledgment message or configuration information of an uplink signal of the user equipment of the second base station.
  • the base station 2100 may further include: a second sending unit, configured to send, to the second base station, a third message, where the third message includes configuration information of uplink signals of one or more user equipments of the base station 2100.
  • the base station 2100 may further include: a second receiving unit, configured to receive a fourth message sent by the second base station, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • a second receiving unit configured to receive a fourth message sent by the second base station, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • the base station 2100 may further include: a message sending unit, a notification receiving unit, and a switching unit.
  • the message sending unit sends a trigger message to the user equipment to trigger the user equipment to send an uplink signal for handover;
  • the notification receiving unit receives a notification message sent by one or more second base stations according to the detection of the uplink signal;
  • the notification message determines the target base station from one or more second base stations and switches the user equipment.
  • the first base station negotiates the configuration information of the uplink signal of the user equipment with the one or more second base stations, and the first base station sends the configuration information of the uplink signal to the user equipment, which can meet the requirements in different scenarios.
  • Example 11
  • FIG. 22 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • the base station 2200 includes: Negotiation unit 2201 and detection unit 2202. Other parts of the base station 2200 can refer to the prior art.
  • the negotiating unit 2201 negotiates the configuration information of the uplink signal of the user equipment with the first base station, and the detecting unit 2202 detects the uplink signal sent by the user equipment according to the configuration information.
  • the negotiating unit 2201 may specifically include: a third receiving unit and a third sending unit.
  • the third receiving unit is configured to receive a first message sent by the first base station, where the first message includes configuration information of an uplink signal of one or more user equipments of the first base station, and the third sending unit is configured to reply to the first base station
  • the second message is an acknowledgment message or configuration information of an uplink signal of one or more user equipments of the base station 2200.
  • the base station 2200 may further include: a fourth receiving unit, configured to receive a third message sent by the first base station, where the third message includes configuration of an uplink signal of one or more user equipments of the first base station information.
  • the base station 2200 may further include: a fourth sending unit, configured to send, to the first base station, a fourth message, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • a fourth sending unit configured to send, to the first base station, a fourth message, where the fourth message is used to reject configuration information of an uplink signal of all or part of user equipments in the third message.
  • the base station 2200 may further include: a notification sending unit, configured to send a notification message to the first base station according to the detecting the uplink signal; and cause the first base station to switch the user equipment according to the notification message.
  • a notification sending unit configured to send a notification message to the first base station according to the detecting the uplink signal; and cause the first base station to switch the user equipment according to the notification message.
  • the base station 2200 may further include: an activation unit, a frequency at which the uplink signal is activated, or a cell receiver corresponding to the frequency.
  • the first base station negotiates the configuration information of the uplink signal of the user equipment with the one or more second base stations, and the first base station sends the configuration information of the uplink signal to the user equipment, and the second base station detects the uplink signal. ; can meet the needs of different scenarios.
  • Example 12
  • the embodiment of the present invention provides a user equipment, which corresponds to the configuration method of Embodiment 9, and the same content is not described again.
  • FIG. 23 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in Figure 23, the user equipment
  • 2300 includes: an information receiving unit 2301 and a signal transmitting unit 2302. Other parts of the user equipment 2300 can refer to the prior art.
  • the information receiving unit 2301 receives the configuration information of the uplink signal sent by the first base station; the signal sending unit 2302 sends the uplink signal according to the configuration trigger message; and causes the one or more second base stations to detect the uplink signal.
  • the user equipment 2300 may further include: a message receiving unit that receives the trigger message sent by the first base station; and the signal sending unit 2302 is further configured to send the uplink signal according to the trigger message and the configuration information.
  • the user equipment receives the configuration information of the uplink signal sent by the first base station, and the user equipment sends the uplink signal, and the second base station detects the uplink signal, which can meet the requirements in different scenarios.
  • Example 13
  • Embodiments of the present invention provide a communication system in which a user equipment switches from a source base station to a target base station.
  • Figure 24 is a block diagram showing the configuration of a communication system according to an embodiment of the present invention. As shown in Figure 24, the communication system is shown in Figure 24
  • 2400 includes: a first base station 2401, a second base station 2402, and a user equipment 2403.
  • the first base station 2401 can be the source base station as described in Embodiment 4
  • the second base station 2402 can be the target base station as described in Embodiment 5
  • the user equipment 1803 can be as described in Embodiment 6.
  • the first base station 2401 can be as described in Embodiment 10
  • the second base station 2402 can be as described in Embodiment 11
  • the user equipment 1803 can be as described in Embodiment 12.
  • Fig. 24 only schematically shows the configuration of the communication system, but the present invention is not limited thereto, and a specific embodiment can be determined according to actual conditions.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to perform uplink signal-based handover as described in Embodiment 1 or 2 above in the base station.
  • the program causes a computer to perform uplink signal-based handover as described in Embodiment 1 or 2 above in the base station.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the uplink signal based switching method described in Embodiment 1 or 2 above in a base station, or performs, for example, The method of configuring the uplink signal described in Embodiment 7 or 8 above.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment, the program causes a computer to perform an uplink signal based switching method as described in Embodiment 3 above in the user Or, the method of configuring the uplink signal as described in Embodiment 9 above is performed.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the uplink signal based switching method described in Embodiment 3 above in the user equipment, or performs the above The method for configuring the uplink signal described in Embodiment 9.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices. For example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

Abstract

本发明实施例提供一种基于上行信号的切换方法、上行信号的配置方法、用户设备以及基站,该切换方法包括:源基站向用户设备发送触发消息,以触发用户设备发送用于切换的上行信号;接收一个或多个其他基站根据对上行信号的探测而发送的通知消息;根据通知消息从一个或多个其他基站中确定目标基站,并对用户设备进行切换。通过本发明实施例,可以基于上行信号的测量来加速对切换的判决,满足不同场景下的切换需求。

Description

基于上行信号的切换方法、 上行信号的配置方法、 用户设备以及基站 技术领域
本发明涉及一种通信领域, 特别涉及一种基于上行信号的切换方法、 上行信号 的配置方法、 用户设备以及基站。 背景技术 目前, 在基站侧的控制下, 用户设备可以从源基站切换到目标基站。 在现有机 制中, 用户设备的切换是根据下行信号的测量结果而进行的。用户设备根据基站侧配 置的信息进行信号测量, 然后将测量结果上报给基站侧, 由基站侧发起切换过程。
但是, 发明人发现在现有方案中, 下行信号的测量需要包括小区 (或频率) 识 别的过程, 以及同频 (或异频)测量的过程, 其经历的时间比较长。 因此, 在小小区
( small cell)等场景下, 当速度较快的用户设备通过小小区时, 可能在没有完成测量 前就离开了小小区的覆盖范围, 从而因为测量报告没有及时触发而导致链路失败。
应该注意,上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
本发明实施例提供一种基于上行信号的切换方法、上行信号的配置方法、用户设 备以及基站。 目的在于基于上行信号的测量来加速对切换的判决, 满足不同场景下的 切换需求。
根据本发明实施例的一个方面, 提供一种基于上行信号的切换方法, 应用于用户 设备从源基站向目标基站切换的通信系统中, 所述方法包括:
所述源基站向所述用户设备发送触发消息,以触发所述用户设备发送用于切换的 上行信号;
接收一个或多个其他基站根据对所述上行信号的探测而发送的通知消息; 所述源基站根据所述通知消息从所述一个或多个其他基站中确定所述目标基站, 并对所述用户设备进行切换。
根据本发明实施例的另一方面, 提供一种基于上行信号的切换方法, 应用于用户 设备从源基站向目标基站切换的通信系统中, 所述方法包括:
所述目标基站探测所述用户设备发送的用于切换的上行信号;
根据探测结果向所述源基站发送通知消息;使得所述源基站根据所述通知消息对 所述用户设备进行切换。 根据本发明实施例的另一方面, 提供一种基于上行信号的切换方法, 应用于用户 设备从源基站向目标基站切换的通信系统中, 所述方法包括:
所述用户设备接收所述源基站发送的触发消息;
根据所述触发消息发送用于切换的上行信号;使得一个或多个其他基站根据对所 述上行信号的探测而向所述源基站发送通知消息, 以及所述源基站根据所述通知消息 对所述用户设备进行切换。
根据本发明实施例的另一方面, 提供一种基站, 应用于用户设备从所述基站向目 标基站切换的通信系统中, 所述基站包括:
消息发送单元, 向所述用户设备发送触发消息, 以触发所述用户设备发送用于切 换的上行信号;
通知接收单元,接收一个或多个其他基站根据对所述上行信号的探测而发送的通 知消息;
切换单元, 根据所述通知消息从所述一个或多个其他基站中确定所述目标基站, 并对所述用户设备进行切换。
根据本发明实施例的另一方面, 提供一种基站, 应用于用户设备从源基站向所述 基站切换的通信系统中, 所述基站包括:
探测单元, 探测所述用户设备发送的用于切换的上行信号;
通知发送单元, 根据探测结果向所述源基站发送通知消息; 使得所述源基站根据 所述通知消息对所述用户设备进行切换。
根据本发明实施例的另一方面, 提供一种用户设备, 应用于所述用户设备从源基 站向目标基站切换的通信系统中, 所述用户设备包括:
消息接收单元, 接收所述源基站发送的触发消息;
信号发送单元, 根据所述触发消息发送用于切换的上行信号; 使得一个或多个其 他基站根据对所述上行信号的探测而向所述源基站发送通知消息,以及所述源基站根 据所述通知消息对所述用户设备进行切换。
根据本发明实施例的又一个方面,提供一种上行信号的配置方法,所述方法包括: 第一基站与第二基站协商用户设备的上行信号的配置信息;
所述第一基站向所述用户设备发送所述上行信号的配置信息,使得所述用户设备 根据所述配置信息发送所述上行信号,并且所述第二基站根据所述配置信息探测所述 上行信号。
根据本发明实施例的又一个方面,提供一种上行信号的配置方法,所述方法包括: 第二基站与第一基站协商用户设备的上行信号的配置信息;
所述第二基站根据所述配置信息对所述用户设备发送的上行信号进行探测。 根据本发明实施例的又一个方面,提供一种上行信号的配置方法,所述方法包括: 用户设备接收第一基站发送的上行信号的配置信息; 根据所述配置信息发送上行信号;使得一个或多个第二基站对所述上行信号进行 探测。
根据本发明实施例的又一个方面, 提供一种基站, 所述基站包括:
协商单元, 与一个或多个第二基站协商用户设备的上行信号的配置信息; 信息发送单元, 向用户设备发送所述上行信号的配置信息。
根据本发明实施例的又一个方面, 提供一种基站, 所述基站包括:
协商单元, 与第一基站协商用户设备的上行信号的配置信息;
探测单元, 根据所述配置信息对所述用户设备发送的上行信号进行探测。
根据本发明实施例的又一个方面, 提供一种用户设备, 所述用户设备包括: 信息接收单元, 接收第一基站发送的上行信号的配置信息;
信号发送单元, 根据配置触发消息发送上行信号; 使得一个或多个第二基站对所 述上行信号进行探测。
根据本发明实施例的另一方面, 提供一种通信系统, 所述通信系统包括如上所述 的用户设备, 以及如上所述的基站。
根据本发明实施例的又一个方面, 提供一种计算机可读程序, 其中当在基站中执 行所述程序时,所述程序使得计算机在所述基站中执行如上所述的基于上行信号的切 换方法、 或者上行信号的配置方法。
根据本发明实施例的又一个方面, 提供一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算机在基站中执行如上所述的基于上行信号的切换 方法、 或者上行信号的配置方法。
根据本发明实施例的又一个方面, 提供一种计算机可读程序, 其中当在用户设备 中执行所述程序时,所述程序使得计算机在所述用户设备中执行如上所述的基于上行 信号的切换方法、 或者上行信号的配置方法。
根据本发明实施例的又一个方面, 提供一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算机在用户设备中执行如上所述的基于上行信号的 切换方法、 或者上行信号的配置方法。
本发明实施例的有益效果在于,通过源基站发送触发消息来触发用户设备发送用 于切换的上行信号, 接收一个或多个其他基站根据上行信号而发送的通知消息, 并根 据通知消息确定目标基站以及对用户设备进行切换;可以基于上行信号的测量来加速 对切换的判决, 满足不同场景下的切换需求。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的 原理可以被采用的方式。 应该理解, 本发明的实施方式在范围上并不因而受到限制。 在所附权利要求的精神和条款的范围内, 本发明的实施方式包括许多改变、修改和等 同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更 多个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中 的特征。
应该强调, 术语"包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
参照以下的附图可以更好地理解本发明的很多方面。 附图中的部件不是成比例 绘制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附 图中对应部分可能被放大或缩小。
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个 其它附图或实施方式中示出的元素和特征相结合。 此外, 在附图中, 类似的标号表示 几个附图中对应的部件, 并可用于指示多于一种实施方式中使用的对应部件。
图 1是本发明实施例 1的基于上行信号的切换方法的一流程图;
图 2是本发明实施例 1的切换场景的一示例图;
图 3是本发明实施例 1的基于上行信号的切换方法的另一流程图;
图 4是本发明实施例 1的基于上行信号的切换方法的另一流程图;
图 5是本发明实施例 1的基于上行信号的切换方法的另一流程图;
图 6是本发明实施例 1的基站间配置信息的一交互图;
图 7是本发明实施例 1的基站间发送配置信息的一流程图;
图 8是本发明实施例 2的基于上行信号的切换方法的一流程图;
图 9是本发明实施例 2的基于上行信号的切换方法的另一流程图;
图 10是本发明实施例 3的基于上行信号的切换方法的一流程图;
图 11是本发明实施例 3的基于上行信号的切换方法的另一流程图; 图 12是本发明实施例 4的基站的一构成示意图;
图 13是本发明实施例 4的基站的另一构成示意图;
图 14是本发明实施例 5的基站的一构成示意图;
图 15是本发明实施例 5的基站的另一构成示意图;
图 16是本发明实施例 6的用户设备的一构成示意图;
图 17是本发明实施例 6的用户设备的另一构成示意图;
图 18是本发明实施例 7的上行信号的配置方法的一流程图;
图 19是本发明实施例 8的上行信号的配置方法的一流程图;
图 20是本发明实施例 9的上行信号的配置方法的一流程图;
图 21是本发明实施例 10的基站的一构成示意图;
图 22是本发明实施例 11的基站的一构成示意图;
图 23是本发明实施例 12的用户设备的一构成示意图; 图 24是本发明实施例 13的通信系统的一构成示意图。 具体实施方式
参照附图, 通过下面的说明书, 本发明的前述以及其它特征将变得明显。 在说 明书和附图中, 具体公开了本发明的特定实施方式, 其表明了其中可以采用本发明的 原则的部分实施方式, 应了解的是, 本发明不限于所描述的实施方式, 相反, 本发明 包括落入所附权利要求的范围内的全部修改、 变型以及等同物。 实施例 1
本发明实施例提供一种基于上行信号的切换方法,应用于用户设备从源基站向目 标基站切换的通信系统中; 以下从源基站侧对该切换方法进行详细说明。
图 1是本发明实施例的基于上行信号的切换方法的一流程图, 如图 1所示, 该方 法包括:
步骤 101, 源基站向用户设备发送触发消息, 以触发该用户设备发送用于切换的 上行信号;
步骤 102, 源基站接收一个或多个其他基站根据对上行信号的探测而发送的通知 消息;
步骤 103, 源基站根据通知消息从一个或多个其他基站中确定目标基站, 并对该 用户设备进行切换。
在本实施例中, 基站可以向用户设备发送触发消息。用户设备接收到该触发消息 后, 可以根据预先定义的配置信息、 或者已经获得的配置信息、 或者该触发消息中包 含的配置信息等, 来发送上行信号。 至于用户设备具体如何获得配置信息, 可以根据 实际情况确定具体的实施方式, 本发明不限于此。
其中,配置信息中可以包括上行信号发送的频率、资源等等。但本发明不限于此, 可以根据实际的上行信号确定具体的内容;后面将对配置信息的具体内容进行详细的 说明。
在本实施例中, 一个或多个其他基站可以探测用户设备发送的上行信号, 可以根 据探测的结果向源基站发送通知消息。源基站根据接收到的一个或多个通知消息(或 者, 还可以参考其他基站的情况, 例如负载的情况), 可以从一个或多个其他基站中 确定目标基站, 并对该用户设备进行切换。
由此, 可以基于上行信号对切换进行判决, 相对于现有的基于下行信号进行切换 判决的方式, 本发明实施例可以加速用户设备的切换判决, 满足不同场景下的切换需 求。
图 2是本发明实施例的切换场景的一示例图。如图 2所示, 用户设备 203可以从 左向右移动时, 可能触发从源基站 201向目标基站 202的切换。 值得注意的是, 图 2 仅示意性示出了本实施例的一种场景, 但本发明不限于此, 例如小区 205还可以是包 含在小区 204内的 small cell, 可以根据实际情况确定具体的场景。
在具体实施时, 源基站可以与其他基站进行协商, 使得基站侧获知用户设备的上 行信号的配置信息。源基站还可以向其他基站发送消息, 该消息包含一个或多个用户 设备的上行信号的配置信息, 使得基站侧获知用户设备的上行信号的配置信息。
此外, 源基站可以向用户设备发送上行信号的配置信息, 或者源基站可以在触发 消息中包含上行信号的配置信息, 使得用户设备侧获知上行信号的配置信息。
其中, 上行信号的配置信息可以包括以下信息的任一种或其组合:
(A) 上行信号的发射功率;
(B) 发送上行信号的载频信息或者小区信息;
(C) 用户设备切换的目标载频信息或者小区信息;
在具体实施时, 当目标载频或目标小区所在的载频, 和用户设备所在的源小区的 载频一样时, 可以没有该信息。
(D) 用户设备的标识信息;
(E) 用户设备的适用用户类型信息;
例如, 标识该用户设备是快速用户的信息、 或者是中速用户的信息等, 这样只有 快速用户或者中速用户需要根据该上行信号的配置信息发送上行信号,其他种类的用 户就无需发送该上行信号了。
(F) 发送上行信号的资源信息;
例如, 该资源信息包括: 时域资源、 频域资源、 空域资源等的其中一种或者它们 之间的组合。
(G) 上行信号的次数或时间信息;
例如, 上行信号应该发送的次数、最大发送次数和最小发送次数的其中一种或其 组合; 或者, 允许上行信号发送的时间段信息、 最少时间长度和最大时间长度的其中 之一或其组合。
(H) 上行信号的特征信息。
例如, 上行信号的特征信息具体可以包括: 产生上行信号的序列信息。 在具体实 施时, 该上行信号可以是用于随机接入的前导序列信号 (preamble); 该上行信号的 特 征 信 息 至 少 可 以 包 括 : PRACH-Config , RACH-ConfigCommon 或 ACH-ConfigDedicated信息实体中的至少一个信息; 具体细节可以参考 TS36.331 vl l.2.0。
或者, 该上行信号可以是侦听参考信号 (SRS, sounding reference signal); 该上 行信号的特征信息至少可以包括: SoundingRS-UL-Config 信息实体中的至少一个信 息; 具体细节可以参考 TS36.331 vll.2.0。
或者, 该上行信号可以是解调参考信号(DM-RS, demodulation reference signal), 该上行信号的特征信息至少可以包括: DM-RS-Config信息实体中的至少一个信息; 具体细节可以参考 TS36.331 vll.2.0。
在本实施例中, 上行信号的配置信息可以是区分用户设备的(例如, 不同用户设 备的上行信号配置信息不同); 由此基站侧需要为不同的用户设备配置不同的信息。
或者也可以是区分小区的(例如, 不同小区的上行信号的配置信息不同, 但同一 小区中的所有用户设备是相同的); 由此基站侧需要为不同小区的用户设备配置不同 的信息; 可以为同一小区的用户设备配置相同的信息。
或者也可以是区分基站的(例如, 不同基站的上行信号配置信息不同, 但同一基 站下的所有小区的所有用户设备的上行信号的配置信息都相同)。 由此基站侧需要为 不同基站下的用户设备配置不同的信息;可以为同一基站下的用户设备配置相同的信 息。
此外, 在整个上行信号的配置信息中, 可以一部分是区分用户的, 一部分是区分 小区的, 一部分是区分基站的。
值得注意的是, 以上仅对上行信号的配置信息进行了示意性说明。但本发明不限 于此, 可以根据实际情况确定配置信息的具体实施方式。
在一个实施方式中, 触发消息中可以包含上行信号的配置信息, 用户设备可以获 得该上行信号的配置信息。在另一个实施方式中, 源基站可以向用户设备发送上行信 号的配置信息。
图 3是本发明实施例的基于上行信号的切换方法的另一流程图, 如图 3所示, 该 方法包括:
步骤 301, 源基站向用户设备发送上行信号的配置信息。
步骤 302, 源基站向用户设备发送触发消息;
步骤 303, 用户设备根据触发消息, 发送用于切换的上行信号;
步骤 304, 其他基站对该上行信号进行探测;
步骤 305, 源基站接收一个或多个其他基站根据对上行信号的探测而发送的通知 消息;
步骤 306, 源基站根据通知消息从一个或多个其他基站中确定目标基站, 并对该 用户设备进行切换。
值得注意的是, 步骤 301和步骤 302并没有顺序关系, 配置信息可以在触发消息 之前发送, 也可以在触发消息之后发送, 还可以同时发送。 可以根据实际情况确定具 体的实施方式。
在本实施方式中, 基站之间对于上行信号的配置信息可以预先定义, 也可以是预 先获得等等, 可以根据实际情况确定具体的实施方式。
在另一个实施方式中,基站之间可以发送消息来获知用户设备的上行信号的配置 信息。 图 4是本发明实施例的基于上行信号的切换方法的另一流程图, 如图 4所示, 该方法包括:
步骤 401, 源基站向其他基站发送用户设备的上行信号的配置信息;
步骤 402, 源基站向用户设备发送上行信号的配置信息。
步骤 403, 源基站向用户设备发送触发消息;
步骤 404, 用户设备根据触发消息, 发送用于切换的上行信号;
步骤 405, 其他基站对该上行信号进行探测;
步骤 406, 源基站接收一个或多个其他基站根据对上行信号的探测而发送的通知 消息;
步骤 407, 源基站根据通知消息从一个或多个其他基站中确定目标基站, 并对该 用户设备进行切换。
值得注意的是, 步骤 401、 步骤 402和步骤 403并没有顺序关系, 可以根据实际 情况确定具体的实施方式。在本实施方式中, 基站之间可以通过一个或多个消息直接 发送上行信号的配置信息。
在另一个实施方式中, 基站之间可以进行协商、或者发送消息来获知用户设备的 上行信号的配置信息。 图 5 是本发明实施例的基于上行信号的切换方法的另一流程 图, 如图 5所示, 该方法包括:
步骤 501, 源基站 (基站 A) 与至少一个其他基站 (基站 B) 协商用户设备的上 行信号的配置信息。
步骤 502, 源基站向其他基站发送至少一个用户设备的上行信号的配置信息。 步骤 503, 源基站根据配置信息触发用户设备发送至少一次上行信号; 而其他基 站根据配置信息来探测上行信号。
步骤 504, 其他基站根据探测的情况向源基站发送通知消息。
步骤 505, 源基站根据通知消息, 触发用户设备的切换过程。
值得注意的是, 图 3至图 5仅示意性示出了本发明的具体实施方式, 但本发明不 限于此。 以下仅以图 5所示的过程为例, 对本发明进行进一步的详细说明。
在步骤 501中, 源基站与其他基站协商用户设备的上行信号的配置信息, 具体可 以包括: 源基站向其他基站发送第一消息, 该第一消息包含源基站的一个或多个用户 设备的上行信号的配置信息; 源基站接收其他基站回复的第二消息; 该第二消息为确 认消息、 或者包含其他基站的一个或多个用户设备的上行信号的配置信息。
图 6是基站间上行信号的配置信息的一交互流程图。 如图 6所示, 基站 A与基 站 B之间可以对上行信号的配置信息进行交互。每个基站可以决定其用户设备的上行 信号配置信息。 此后, 基站 A发送包含其用户设备的上行信号配置信息的消息 1 (第 一消息) 给基站 B。 可选地, 基站 B回复确认消息、 或包含基站 B的用户设备的上 行信号配置信息的消息 2 (第二消息)。 值得注意的是, 如果有些上行信号的配置信 息是预先定义好的或每个基站都知道的, 在该步骤中就无需交互。 此外, 基站 A可以用不同的消息 (如消息 1, 消息 1 ', 消息 1 "等) 向基站 B发 送其用户设备的上行信号配置信息中的不同部分。同理,基站 B也可以用不同的消息 (如消息 2, 消息 2', 消息 2"等)向基站回复其用户设备的上行信号配置信息中的不 同部分。
在具体实施时, 消息 1 (第一消息) 可以是 X2建立请求消息 (X2 setup request message), 或者基站酉己置更新消息 (eNB configuration update message); 而消息 2 (第 二消息) 可以是 X2建立响应消息 (X2 setup response message), 或者基站配置更新 消息 (eNB configuration update message )。 关于消息的具体内容可以参考 3GPP TS36.423 vll.3.0o但本发明不限于此,第一消息也可以是其他的已有消息或者新定义 的消息, 第二消息也可以是或者其他的已有消息或者新定义的消息。
在本实施例中, 每个基站可以与多个基站交互该上行信号配置信息, 并根据这些 交互的信息来最终确定其用户设备的上行信号配置信息。 因此, 该基站与其他基站交 互时所用的上行信号配置信息可能与其最终决定的其用户设备的上行信号配置信息 不同 (例如基站可以根据负载等情况相应地进行调整), 而这个最终决定的信息就是 用户设备发送上行信号时所用的配置信息。
在步骤 502中, 源基站可以向其他基站发送第三消息, 该第三消息包含源基站的 一个或多个用户设备的上行信号的配置信息。在具体实施时, 可以在用户设备的信号 强度和 /或信号质量小于预设的门限值时、 或者营运、 管理与维护 (OAM, Operation Administration and Maintenance)系统触发时、或者预设的条件触发时, 源基站向其他 基站发送该第三消息。
在步骤 502中, 还可以包括: 源基站接收其他基站发送的第四消息, 该第四消息 用于拒绝第三消息中的全部或者部分用户设备的上行信号的配置信息。其中, 第四消 息包括拒绝原因和 /或推荐用户设备的上行信号的配置信息。
图 7是基站间发送上行信号的配置信息的一流程图。 如图 7所示, 基站 A向基 站 B发送上行信号的配置信息。 消息 3 (第三消息) 中包含至少一个用户设备的上行 信号配置信息。 基站 A发送了消息 3后, 基站 B可以拒绝。
在本实施例中,拒绝的原因可以包括:基站 B不能根据消息 3中的配置信息探测 到用户设备的上行信号, 或者对上行信号的干扰比较严重, 或者该用户设备的上行信 号的配置与其他小区的用户设备的上行信号配置冲突等等。
基站 B可以通过回复消息 4 (第四消息)来拒绝消息 3中所有用户或部分用户的 上行信号的配置信息。在消息 4中可以包括拒绝原因(例如,不合适的上行信号配置, 或不支持基于上行信号的切换机制等), 和 /或推荐的相应用户的上行信号配置信息。
在具体实施时, 消息 3 (第三消息)可以为切换请求消息(handover request), 而 消息 4 (第四消息) 可以为切换准备失败消息 (handover preparation failure )。 关于消 息的具体内容可以参考 3GPP TS36.423 vll.3.0。 但本发明不限于此, 第三消息也可以 是其他的已有消息或者新定义的消息,第四消息也可以是其他的已有消息或者新定义 的消息。
值得注意的是, 图 5同时示出了步骤 501和步骤 502, 但本发明不限于此。 例如 可以只执行步骤 501, 或者只执行步骤 502 (参考附图 4的情况), 或者步骤 501和步 骤 502均不执行 (参考附图 3的情况)。
在步骤 503中, 在源基站(基站 A)侧: 在决定了一个用户设备的上行信号的配 置后 (例如在步骤 501后即执行步骤 503, 或者不执行步骤 501而在步骤 502后执行 步骤 503, 或者步骤 501和 502后, 或者 OAM触发后, 或者没有任何触发条件, 等 等), 源基站可以按照以下方式触发用户设备发送上行信号。
在触发用户设备发送上行信号前, 基站 A可以将用户设备的上行信号的配置信 息通过至少一个消息发送给用户设备。例如, 将该用户设备所有的上行信号配置信息 通过一个消息发送给该用户设备,或者将该用户设备的上行信号配置信息分成多个部 分 (每个部分可以有重叠的内容, 也可以是完全不同的部分), 并将不同的部分通过 不同的消息发送给该用户设备。 需要注意的是, 这些配置信息的发送可以在步骤 501 之后, 或者在不执行步骤 501而仅在步骤 502之后, 或者步骤 501和 502之后, 或者 OAM触发, 或者在任何时候。
在用户设备接收到了上行信号的所有配置后, 基站 A可以发送消息 5 (可以称为 上行信号触发消息)来触发用户设备发送上行信号。 另外, 上述所有或部分上行信号 配置信息也可以通过消息 5发送给用户设备。
用户设备接收到消息 5后, 对于上行信号的发送可以有两种方式:
( 1 ) 一个消息 5只能触发一次上行信号的发送 (如图 5所示, 第二个用虚线表 示的消息 5就触发了另一次上行信号的发送);
(2) 一个消息 5可以触发多次上行信号的发送。
在上述每种方式中,发送上行信号所用的资源可以是通过上行信号的配置消息而 配置, 也可以通过上行信号触发消息而配置。
在步骤 503中, 在其他基站(基站 B )侧: 如果基站 B能够接受消息 3中上行信 号的配置信息, 可以执行下述至少一种操作:
( a) 如果基站 A下的用户发送上行信号所在的频率或所在频率对应的小区没有 激活 (例如, 处于睡眠状态), 基站 B可以激活该频率或该小区, 至少可以激活该频 率或该小区的接收机;
(b) 启动一个计时器以决定回复消息 3 的时间 (该计时器可以在收到步骤 502 中的消息 3 时就启动, 或者在收到用户的第一个上行信号就启动, 但本发明不限于 此);
( c) 在回复消息 3前探测用户设备的上行信号。
值得注意的是, 上述的这三个操作可以按照任意次序进行或同时进行, 可以根据 实际情况确定。
在步骤 504中,如果基站 B在设定的计时器超时之前就探测到了用户设备的上行 信号, 基站 B可以发送消息 6 (通知消息)给基站 A, 以此来通知基站 A: 基站 B探 测到了用户设备的上行信号。
基站 B可以根据预设的条件来判断用户设备。用户设备的上行信号被探测到的条 件可以是: 用户设备的上行信号被正确接收了一定次数, 和 /或正确收到的用户的上 行信号中、 信号强度或信号质量超过某个门限的个数超过了一定的门限。
在本实施例中, 消息 6 (通知消息) 至少可以包括以下一种信息:
(a) 上行信号被基站 B探测到的用户的标示符;
(b) 探测到的上行信号的个数;
(c) 探测到的上行信号的信号强度或信号质量, 和 /或探测到的上行信号的平均 信号强度或平均信号质量。
在这里, 用户设备的上行信号的信号强度或信号质量可以是一个绝对值, 也可以 是一个相对值(例如, 相对于某个门限值, 即用户设备的上行信号的信号强度或信号 质量减去该门限值; 而该门限值可以是基站 B设定的, 也可以 OAM设定的)。
(d) 判定上行信号能够探测到时所用的信号强度或信号质量的门限值。
在具体实施时,消息 6可以是切换请求确认消息(handover request acknowledge )0 关于消息的具体内容可以参考 3GPP TS36.423 vll.3.0。但本发明不限于此, 也可以是 其他已有的消息或新定义的消息。
值得注意的是, 如果在步骤 503中所设定的计时器超时后, 判定用户设备的上行 信号可以被探测到的条件也没有满足, 基站 B可能会停止探测用户设备的上行信号, 或向基站 A回复一个消息表明用户设备的上行信号没有被探测到。
在步骤 505中, 基站 A会接收到基站 B发送的消息 6。 另外, 基站 A也可能会 接收到来自其他基站的消息 6。
基站 A可以根据接收到的来自至少一个基站的消息 6来为用户设备选择合适的 切换目标, 然后启动那些上行信号被基站 B 或其他基站探测到的用户设备的切换过 程。
值得注意的是, 在具体实施时, 如果消息 5和 6分别是切换请求消息和切换请求 确认消息, 在步骤 5中基站 A就会给相应的用户设备发送切换命令来启动切换过程。 否则, 基站 A就通过给目标基站发送切换请求消息来启动该用户设备的切换过程。
在本实施例中, 用户设备的上行信号的接收所需时间较短。 因此, 系统可以通过 上行信号的测量来加速用户的切换判决。
由上述实施例可知,通过源基站发送触发消息来触发用户设备发送用于切换的上 行信号, 接收一个或多个其他基站根据上行信号而发送的通知消息, 并根据通知消息 确定目标基站以及对用户设备进行切换;可以基于上行信号的测量来加速对切换的判 决, 满足不同场景下的切换需求。 实施例 2
本发明实施例提供一种基于上行信号的切换方法,应用于用户设备从源基站向目 标基站切换的通信系统中; 本实施例从目标基站侧进行说明, 与实施例 1相同的内容 不再赘述。
图 8是本发明实施例的基于上行信号的切换方法的一流程图, 如图 8所示, 该方 法包括:
步骤 801, 目标基站探测用户设备发送的用于切换的上行信号;
步骤 802, 目标基站根据对上行信号的探测向源基站发送通知消息; 使得源基站 根据通知消息对用户设备进行切换。
图 9是本发明实施例的基于上行信号的切换方法的另一流程图, 如图 9所示, 该 方法包括:
步骤 901, 目标基站探测用户设备发送的用于切换的上行信号;
步骤 902, 目标基站根据对上行信号的探测向源基站发送通知消息; 使得源基站 根据通知消息对用户设备进行切换。
如图 9所示, 该方法还可以包括:
步骤 9001, 目标基站与源基站协商用户设备的上行信号的配置信息。
在具体实施时, 步骤 9001具体可以包括: 目标基站接收源基站发送的第一消息, 该第一消息包含源基站的用户设备的上行信号的配置信息; 目标基站向源基站回复第 二消息; 该第二消息为确认消息、或者包含目标基站的用户设备的上行信号的配置信 息。
例如, 第一消息可以为 X2建立请求消息或者基站配置更新消息, 第二消息可以 为 X2建立响应消息或者基站配置更新消息。 但本发明不限于此, 还可以是其他消息 或者新定义的消息。
如图 9所示, 该方法还可以包括:
步骤 9002, 目标基站接收源基站发送的第三消息, 该第三消息包含源基站的一 个或多个用户设备的上行信号的配置信息。
如图 9所示, 可选地, 该方法还可以包括:
步骤 9003, 目标基站向源基站发送第四消息, 该第四消息用于拒绝第三消息中 的全部或者部分用户设备的上行信号的配置信息。
其中, 第四消息可以包括拒绝原因, 和 /或推荐用户设备的上行信号的配置信息。 在具体实施时, 例如第三消息可以为切换请求消息, 第四消息可以为切换准备失 败消息。 但本发明不限于此, 还可以是其他消息或者新定义的消息。
在本实施例中, 上行信号的配置信息可以包括以下信息的任一种或其组合: 上行 信号的发射功率; 发送上行信号的载频信息或者小区信息; 用户设备切换的目标载频 信息或者小区信息; 用户设备的标识信息; 用户设备的适用用户类型信息; 发送上行 信号的资源信息; 上行信号的次数或时间信息; 上行信号的特征信息。
其中, 上行信号的次数或时间信息具体可以包括: 上行信号应该发送的次数、最 大发送次数和最小发送次数的其中一种或其组合; 或者, 允许上行信号发送的时间段 信息、 最少时间长度和最大时间长度的其中之一或其组合。
其中, 上行信号的特征信息具体包括产生上行信号的序列信息。但本发明不限于 此, 上行信号的特征信息具体还可以包括其他信息, 可以根据实际情况确定具体的内 容。
在具体实施时, 上行信号可以是用于随机接入的前导序列信号; 该上行信号的特 征信息至少包括: PRACH-Config, RACH-ConfigCommon或 ACH-ConfigDedicated 信息实体中的至少一个信息; 或者, 上行信号是侦听参考信号; 上行信号的特征信息 至少包括: SoundingRS-UL-Config信息实体中的至少一个信息。 或者, 上行信号是解 调参考信号, 该上行信号的特征信息至少包括: DM-RS-Config信息实体中的至少一 个信息。
在本实施例中,上行信号的配置信息可以是区分用户设备的;或者是区分小区的; 或者是区分基站的。 或者, 在上行信号的配置信息中, 可以一部分是区分用户的, 一 部分是区分小区的, 一部分是区分基站的。 可以根据实际情况确定具体的配置方式。
在本实施例中, 该方法还可以包括: 目标基站激活上行信号所在的频率、 或者该 频率对应的小区接收机。
在本实施例中, 该方法还可以包括: 目标基站设置定时器; 并且, 目标基站在该 定时器超时之前探测上行信号。
在本实施例中, 该方法还可以包括: 目标基站根据上行信号判断用户设备是否能 够进行切换; 并且, 根据判断结果向源基站发送通知消息。
在具体实施时, 目标基站根据上行信号判断用户设备是否能够进行切换, 具体可 以包括: 在探测到的上行信号满足预设的条件时, 判断用户设备能够进行切换。
其中, 预设的条件可以包括: 上行信号被正确接收了预定的次数, 和 /或在正确 收到的上行信号中、 信号强度或信号质量超过预设门限值的个数超过了预定值。
在本实施例中, 通知消息可以包括如下信息的其中一种或其组合: 上行信号被目 标基站探测到的用户设备的标示符; 探测到的上行信号的个数; 探测到的上行信号的 信号强度或信号质量; 探测到的上行信号的平均信号强度或平均信号质量; 判定上行 信号能够被探测到时所用的信号强度或信号质量的门限值。
由上述实施例可知, 至少一个基站探测用户设备发送的上行信号, 根据探测情况 向源基站发送通知消息,使得源基站根据该通知消息确定目标基站以及对用户设备进 行切换;可以基于上行信号的测量来加速对切换的判决,满足不同场景下的切换需求。 实施例 3
本发明实施例提供一种基于上行信号的切换方法,应用于用户设备从源基站向目 标基站切换的通信系统中; 本实施例从用户设备侧进行说明, 与实施例 1相同的内容 不再赘述。
图 10是本发明实施例的基于上行信号的切换方法的一流程图, 如图 10所示, 该 方法包括:
步骤 1001, 用户设备接收源基站发送的触发消息;
步骤 1002, 用户设备根据触发消息发送用于切换的上行信号; 使得一个或多个 其他基站根据对上行信号的探测而向源基站发送通知消息, 以及源基站根据通知消息 对用户设备进行切换。
在一个实施方式中, 触发消息中可以包含上行信号的配置信息, 用户设备可以获 得该上行信号的配置信息。在另一个实施方式中, 源基站可以向用户设备发送上行信 号的配置信息。
图 11是本发明实施例的基于上行信号的切换方法的另一流程图, 如图 11所示, 该方法包括:
步骤 1101, 用户设备接收源基站发送的上行信号的配置信息。
步骤 1102, 用户设备接收源基站发送的触发消息。
步骤 1103, 用户设备根据触发消息发送用于切换的上行信号。
在本实施例中, 用户设备根据触发消息, 可以发送一次或者多次上行信号。 在本实施例中, 上行信号的配置信息可以包括以下信息的任一种或其组合: 上行 信号的发射功率; 发送上行信号的载频信息或者小区信息; 用户设备切换的目标载频 信息或者小区信息; 用户设备的标识信息; 用户设备的适用用户类型信息; 发送上行 信号的资源信息; 上行信号的次数或时间信息; 上行信号的特征信息。
其中, 上行信号的次数或时间信息具体可以包括: 上行信号应该发送的次数、最 大发送次数和最小发送次数的其中一种或其组合; 或者, 允许上行信号发送的时间段 信息、 最少时间长度和最大时间长度的其中之一或其组合。
其中, 上行信号的特征信息具体可以包括产生上行信号的序列信息。但本发明不 限于此, 上行信号的特征信息具体还可以包括其他信息, 可以根据实际情况确定具体 的内容。
在具体实施时, 上行信号可以是用于随机接入的前导序列信号; 该上行信号的特 征信息至少包括: PRACH-Config, RACH-ConfigCommon或 ACH-ConfigDedicated 信息实体中的至少一个信息; 或者, 上行信号可以是侦听参考信号; 上行信号的特征 信息至少包括: SoundingRS-UL- Config信息实体中的至少一个信息。 或者, 上行信 号可以是解调参考信号, 上行信号的特征信息至少包括: DM-RS-Config信息实体中 的至少一个信息。
在本实施例中,上行信号的配置信息可以是区分用户设备的,或者是区分小区的, 或者是区分基站的。 或者, 在上行信号的配置信息中, 可以一部分是区分用户的, 一 部分是区分小区的, 一部分是区分基站的。
由上述实施例可知, 用户设备发送上行信号, 至少一个基站探测上行信号后根据 探测情况向源基站发送通知消息,使得源基站根据该通知消息确定目标基站以及对用 户设备进行切换; 可以基于上行信号的测量来加速对切换的判决, 满足不同场景下的 切换需求。 实施例 4
本发明实施例提供一种基站,应用于用户设备从该基站向目标基站切换的通信系 统中。 本实施例对应于实施例 1的切换方法, 相同的内容不再赘述。
图 12是本发明实施例的基站的一构成示意图。如图 12所示, 该基站 1200包括: 消息发送单元 1201、 通知接收单元 1202和切换单元 1203。 基站 1200的其他部分可 以参考现有技术。
其中, 消息发送单元 1201用于向用户设备发送触发消息, 以触发该用户设备发 送用于切换的上行信号; 通知接收单元 1202接收一个或多个其他基站根据对上行信 号的探测而发送的通知消息; 切换单元 1203根据通知消息从一个或多个其他基站中 确定目标基站, 并对该用户设备进行切换。
图 13是本发明实施例的基站的另一构成示意图。 如图 13所示, 该基站 1300包 括: 消息发送单元 1201、 通知接收单元 1202和切换单元 1203, 如上所述。
如图 13所示, 基站 1300还可以包括: 协商单元 1304, 用于与其他基站协商用 户设备的上行信号的配置信息。
在具体实施时, 协商单元 1304具体可以包括: 第一发送单元和第一接收单元。 第一发送单元用于向其他基站发送第一消息,该第一消息包含源基站的用户设备的上 行信号的配置信息; 第一接收单元用于接收其他基站回复的第二消息; 该第二消息为 确认消息、 或者包含其他基站的用户设备的上行信号的配置信息。
如图 13所示, 基站 1300还可以包括: 第二发送单元 1305, 用于向其他基站发 送第三消息, 该第三消息包含该基站的一个或多个用户设备的上行信号的配置信息。
如图 13所示, 基站 1300还可以包括: 第二接收单元 1306, 用于接收其他基站 发送的第四消息,该第四消息用于拒绝第三消息中的全部或者部分用户设备的上行信 号的配置信息。
在一个实施方式中, 消息发送单元 1201发送的触发消息中包含上行信号的配置 信息。 在另一个实施方式中, 基站还可以包括: 信息发送单元, 用于向用户设备发送 上行信号的配置信息。 由上述实施例可知,通过源基站发送触发消息来触发用户设备发送用于切换的上 行信号, 接收一个或多个其他基站根据上行信号而发送的通知消息, 并根据通知消息 确定目标基站以及对用户设备进行切换;可以基于上行信号的测量来加速对切换的判 决, 满足不同场景下的切换需求。 实施例 5
本发明实施例提供一种基站,应用于用户设备从源基站向该基站切换的通信系统 中。 本实施例对应于实施例 2的切换方法, 相同的内容不再赘述。
图 14是本发明实施例的基站的一构成示意图。如图 14所示, 该基站 1400包括: 探测单元 1401和通知发送单元 1402。 基站 1400的其他部分可以参考现有技术。
其中, 探测单元 1401用于探测用户设备发送的用于切换的上行信号; 通知发送 单元 1402用于根据对上行信号的探测向源基站发送通知消息; 使得源基站根据通知 消息对用户设备进行切换。
图 15是本发明实施例的基站的另一构成示意图。 如图 15所示, 该基站 1500包 括: 探测单元 1401和通知发送单元 1402, 如上所述。
如图 15所示, 基站 1500还可以包括: 协商单元 1503, 用于与源基站协商用户 设备的上行信号的配置信息。
在具体实施时, 协商单元 1503具体可以包括: 第三接收单元和第三发送单元。 第三接收单元用于接收源基站发送的第一消息,该第一消息包含源基站的用户设备的 上行信号的配置信息; 第三发送单元用于向源基站回复第二消息; 该第二消息为确认 消息、 或者包含该基站的用户设备的上行信号的配置信息。
如图 15所示, 基站 1500还可以包括: 第四接收单元 1504, 用于接收源基站发 送的第三消息, 该第三消息包含源基站的一个或多个用户设备的上行信号的配置信 息。
如图 15所示, 基站 1500还可以包括: 第四发送单元 1505, 向源基站发送第四 消息,该第四消息用于拒绝第三消息中的全部或者部分用户设备的上行信号的配置信 息。
在另一个实施方式中, 基站还可以包括: 激活单元, 用于激活上行信号所在的频 率、 或者该频率对应的小区接收机。
在另一个实施方式中,基站还可以包括: 定时设置单元,用于设置定时器; 并且, 探测单元 1401在定时器超时前探测上行信号。
在另一个实施方式中, 基站还可以包括: 判断单元, 用于根据上行信号判断用户 设备是否能够进行切换; 并且, 通知发送单元 1402根据判断结果, 向源基站发送通 知消息。
由上述实施例可知, 至少一个基站探测用户设备发送的上行信号, 根据探测情况 向源基站发送通知消息,使得源基站根据该通知消息确定目标基站以及对用户设备进 行切换;可以基于上行信号的测量来加速对切换的判决,满足不同场景下的切换需求。 实施例 6
本发明实施例提供一种用户设备,应用于该用户设备从源基站向目标基站切换的 通信系统中。 本实施例对应于实施例 3的切换方法, 相同的内容不再赘述。
图 16是本发明实施例的用户设备的一构成示意图。 如图 16所示, 该用户设备 1600包括: 消息接收单元 1601和信号发送单元 1602。 用户设备 1600的其他部分可 以参考现有技术。
其中, 消息接收单元 1601用于接收源基站发送的触发消息; 信号发送单元 1602 用于根据触发消息发送用于切换的上行信号,使得一个或多个其他基站根据对上行信 号的探测而向源基站发送通知消息, 以及源基站根据通知消息对用户设备进行切换。
在一个实施方式中, 在消息接收单元 1601接收的触发消息中, 包含上行信号的 配置信息。 在另一个实施方式中, 用户设备接收基站发送的上行信号的配置信息。
图 17是本发明实施例的用户设备的另一构成示意图。如图 17所示, 该用户设备
1700包括: 消息接收单元 1601和信号发送单元 1602, 如上所述。
如图 17所示, 用户设备 1700还可以包括: 信息接收单元 1703, 用于接收源基 站发送的上行信号的配置信息。
在本实施例中, 信号发送单元 1602根据触发消息, 可以发送一次或者多次上行 信号。
由上述实施例可知, 用户设备发送上行信号, 至少一个基站探测上行信号后根据 探测情况向源基站发送通知消息,使得源基站根据该通知消息确定目标基站以及对用 户设备进行切换; 可以基于上行信号的测量来加速对切换的判决, 满足不同场景下的 切换需求。 实施例 7
本发明实施例提供一种上行信号的配置方法, 以下从第一基站侧对该配置方法进 行详细说明, 与之前实施例相同的内容不再赘述。
图 18是本发明实施例的配置方法的一流程图, 如图 18所示, 该方法包括: 步骤 1801, 第一基站与一个或多个第二基站协商用户设备的上行信号的配置信 息;
步骤 1802, 第一基站向用户设备发送上行信号的配置信息, 使得该用户设备根 据配置信息发送上行信号, 并且第二基站根据配置信息探测上行信号。
在一个实施方式中,步骤 801中第一基站与第二基站协商用户设备的上行信号的 配置信息, 具体可以包括: 第一基站向第二基站发送第一消息, 该第一消息包含第一 基站的一个或多个用户设备的上行信号的配置信息;第一基站接收第二基站回复的第 二消息; 该第二消息为确认消息、或者包含第二基站的一个或多个用户设备的上行信 号的配置信息。
在另一个实施方式中, 该方法还可以包括: 第一基站向第二基站发送第三消息, 该第三消息包含第一基站的一个或多个用户设备的上行信号的配置信息。
在具体实施时, 可选地, 该方法还可以包括: 第一基站接收第二基站发送的第四 消息,该第四消息用于拒绝第三消息中的全部或者部分用户设备的上行信号的配置信 息。
在本实施例中, 上行信号的配置信息可以包括以下信息的任一种或其组合: 上行 信号的发射功率; 发送上行信号的载频信息或者小区信息; 用户设备切换的目标载频 信息或者小区信息; 用户设备的标识信息; 用户设备的适用用户类型信息; 发送上行 信号的资源信息; 上行信号的次数或时间信息; 上行信号的特征信息。
在具体实施时, 上行信号的次数或时间信息具体可以包括: 上行信号应该发送的 次数、 最大发送次数和最小发送次数的其中一种或其组合; 或者, 允许上行信号发送 的时间段信息、 最少时间长度和最大时间长度的其中之一或其组合。
在具体实施时, 上行信号的特征信息具体可以包括产生上行信号的序列信息。但 本发明不限于此。
例如, 上行信号可以是用于随机接入的前导序列信号; 该上行信号的特征信息至 少可以包括: PRACH-Config, RACH-ConfigCommon或 RACH-ConfigDedicated信息 实体中的至少一个信息; 或者, 该上行信号可以是侦听参考信号; 该上行信号的特征 信息至少可以包括: SoundingRS- UL-Config信息实体中的至少一个信息。 或者, 上 行信号可以是解调参考信号, 该上行信号的特征信息至少可以包括: DM-RS-Config 信息实体中的至少一个信息。
在本实施例中, 该方法还可以包括: 第一基站向用户设备发送触发消息, 以触发 用户设备发送用于切换的上行信号;第一基站接收一个或多个第二基站根据对上行信 号的探测而发送的通知消息;第一基站根据通知消息从一个或多个第二基站中确定目 标基站, 并对用户设备进行切换。
在具体实施时, 通知消息可以包括如下信息的其中一种或其组合: 上行信号被第 二基站探测到的用户设备的标示符; 探测到的上行信号的个数; 探测到的上行信号的 信号强度或信号质量; 探测到的上行信号的平均信号强度或平均信号质量; 探测到的 上行信号的加权平均信号强度或加权平均信号质量;判定上行信号能够被探测到时所 用的信号强度或信号质量的门限值。
由上述实施例可知,第一基站与一个或多个第二基站协商用户设备的上行信号的 配置信息, 并且第一基站向用户设备发送上行信号的配置信息, 可以满足不同场景下 的需求。 实施例 8
本发明实施例提供一种上行信号的配置方法, 以下从第二基站侧对该配置方法进 行详细说明, 与之前实施例相同的内容不再赘述。
图 19是本发明实施例的配置方法的一流程图, 如图 19所示, 该方法包括: 步骤 1901, 第二基站与第一基站协商用户设备的上行信号的配置信息; 步骤 1902, 第二基站根据配置信息对用户设备发送的上行信号进行探测。
在一个实施方式中, 步骤 1901 中第二基站与第一基站协商用户设备的上行信号 的配置信息, 具体可以包括: 第二基站接收第一基站发送的第一消息, 该第一消息包 含第一基站的用户设备的上行信号的配置信息; 第二基站向第一基站回复第二消息; 该第二消息为确认消息、 或者包含第二基站的用户设备的上行信号的配置信息。
在另一个实施方式中, 该方法还可以包括: 第二基站接收第一基站发送的第三消 息, 该第三消息包含第一基站的一个或多个用户设备的上行信号的配置信息。
可选地, 该方法还可以包括: 第二基站向第一基站发送第四消息, 第四消息用于 拒绝第三消息中的全部或者部分用户设备的上行信号的配置信息。
在本实施例中, 上行信号的配置信息可以包括以下信息的任一种或其组合: 上行 信号的发射功率; 发送上行信号的载频信息或者小区信息; 用户设备切换的目标载频 信息或者小区信息; 用户设备的标识信息; 用户设备的适用用户类型信息; 发送上行 信号的资源信息; 上行信号的次数或时间信息; 上行信号的特征信息。
在一个实施方式中, 该方法还可以包括: 根据对上行信号的探测向第一基站发送 通知消息; 使得第一基站根据通知消息对用户设备进行切换。
在另一个实施方式中, 该方法还可以包括: 第二基站激活上行信号所在的频率、 或者该频率对应的小区接收机。
由上述实施例可知,第一基站与一个或多个第二基站协商用户设备的上行信号的 配置信息, 并且第一基站向用户设备发送上行信号的配置信息, 而第二基站对上行信 号进行探测; 可以满足不同场景下的需求。 实施例 9
本发明实施例提供一种上行信号的配置方法, 以下从用户设备侧对该配置方法进 行详细说明, 与之前实施例相同的内容不再赘述。
图 20是本发明实施例的配置方法的一流程图, 如图 20所示, 该方法包括: 步骤 2001, 用户设备接收第一基站发送的上行信号的配置信息;
步骤 2002, 用户设备根据配置信息发送上行信号; 使得一个或多个第二基站对 上行信号进行探测。
在本实施例中, 上行信号的配置信息可以包括以下信息的任一种或其组合: 上行 信号的发射功率; 发送上行信号的载频信息或者小区信息; 用户设备切换的目标载频 信息或者小区信息; 用户设备的标识信息; 用户设备的适用用户类型信息; 发送上行 信号的资源信息; 上行信号的次数或时间信息; 上行信号的特征信息。
在一个实施方式中,该方法还可以包括:用户设备接收第一基站发送的触发消息; 并且, 用户设备根据触发消息以及配置信息发送上行信号。
由上述实施例可知, 用户设备接收第一基站发送的上行信号的配置信息, 并且用 户设备发送上行信号,而第二基站对上行信号进行探测;可以满足不同场景下的需求。 实施例 10
本发明实施例提供一种基站,对应于实施例 7的配置方法,相同的内容不再赘述。 图 21是本发明实施例的基站的一构成示意图。如图 21所示, 该基站 2100包括: 协商单元 2101和信息发送单元 2102。 基站 2100的其他部分可以参考现有技术。
其中, 协商单元 2101用于与一个或多个第二基站协商用户设备的上行信号的配 置信息; 信息发送单元 2102用于向用户设备发送上行信号的配置信息。
在一个实施方式中, 协商单元具体可以包括: 第一发送单元和第一接收单元。第 一发送单元向第二基站发送第一消息, 第一消息包含基站 2100的一个或多个用户设 备的上行信号的配置信息; 第一接收单元接收第二基站回复的第二消息; 该第二消息 可以为确认消息、 或者包含第二基站的用户设备的上行信号的配置信息。
在另一个实施方式中, 基站 2100还可以包括: 第二发送单元, 用于向第二基站 发送第三消息, 该第三消息包含基站 2100的一个或多个用户设备的上行信号的配置 信息。
可选地, 基站 2100还可以包括: 第二接收单元, 接收第二基站发送的第四消息, 该第四消息用于拒绝第三消息中的全部或者部分用户设备的上行信号的配置信息。
在另一个实施方式中, 基站 2100还可以包括: 消息发送单元、 通知接收单元和 切换单元。 其中, 消息发送单元向用户设备发送触发消息, 以触发用户设备发送用于 切换的上行信号;通知接收单元接收一个或多个第二基站根据对上行信号的探测而发 送的通知消息; 切换单元根据通知消息从一个或多个第二基站中确定目标基站, 并对 用户设备进行切换。
由上述实施例可知,第一基站与一个或多个第二基站协商用户设备的上行信号的 配置信息, 并且第一基站向用户设备发送上行信号的配置信息, 可以满足不同场景下 的需求。 实施例 11
本发明实施例提供一种基站,对应于实施例 8的配置方法,相同的内容不再赘述。 图 22是本发明实施例的基站的一构成示意图。如图 22所示, 该基站 2200包括: 协商单元 2201和探测单元 2202。 基站 2200的其他部分可以参考现有技术。
其中, 协商单元 2201与第一基站协商用户设备的上行信号的配置信息; 探测单 元 2202根据配置信息对用户设备发送的上行信号进行探测。
在一个实施方式中, 协商单元 2201具体可以包括: 第三接收单元和第三发送单 元。第三接收单元用于接收第一基站发送的第一消息, 该第一消息包含第一基站的一 个或多个用户设备的上行信号的配置信息;第三发送单元用于向第一基站回复第二消 息; 该第二消息为确认消息、 或者包含基站 2200的一个或多个用户设备的上行信号 的配置信息。
在另一个实施方式中, 基站 2200还可以包括: 第四接收单元, 用于接收第一基 站发送的第三消息,该第三消息包含第一基站的一个或多个用户设备的上行信号的配 置信息。
可选地, 基站 2200还可以包括: 第四发送单元, 用于向第一基站发送第四消息, 该第四消息用于拒绝第三消息中的全部或者部分用户设备的上行信号的配置信息。
在另一个实施方式中, 基站 2200还可以包括: 通知发送单元, 根据对上行信号 的探测向第一基站发送通知消息; 使得第一基站根据通知消息对用户设备进行切换。
在另一个实施方式中, 基站 2200还可以包括: 激活单元, 激活上行信号所在的 频率、 或者该频率对应的小区接收机。
由上述实施例可知,第一基站与一个或多个第二基站协商用户设备的上行信号的 配置信息, 并且第一基站向用户设备发送上行信号的配置信息, 而第二基站对上行信 号进行探测; 可以满足不同场景下的需求。 实施例 12
本发明实施例提供一种用户设备, 对应于实施例 9的配置方法, 相同的内容不再 赘述。
图 23是本发明实施例的用户设备的一构成示意图。 如图 23所示, 该用户设备
2300包括: 信息接收单元 2301和信号发送单元 2302。 用户设备 2300的其他部分可 以参考现有技术。
其中, 信息接收单元 2301接收第一基站发送的上行信号的配置信息; 信号发送 单元 2302根据配置触发消息发送上行信号; 使得一个或多个第二基站对上行信号进 行探测。
在一个实施方式中, 用户设备 2300还可以包括: 消息接收单元, 接收第一基站 发送的触发消息; 并且, 信号发送单元 2302还用于根据触发消息以及配置信息发送 上行信号。
由上述实施例可知, 用户设备接收第一基站发送的上行信号的配置信息, 并且用 户设备发送上行信号,而第二基站对上行信号进行探测;可以满足不同场景下的需求。 实施例 13
本发明实施例提供一种通信系统, 在该通信系统中, 用户设备从源基站向目标基 站切换。
图 24是本发明实施例的通信系统的一构成示意图, 如图 24所示, 该通信系统
2400包括: 第一基站 2401、 第二基站 2402和用户设备 2403。
其中, 第一基站 2401可如实施例 4所述的源基站, 第二基站 2402可如实施例 5 所述的目标基站, 用户设备 1803可如实施例 6所述。
或者, 第一基站 2401可如实施例 10所述, 第二基站 2402可如实施例 11所述, 用户设备 1803可如实施例 12所述。
对于通信系统 1800的其他内容, 可以参考实施例 1至 12。 值得注意的是, 图 24 仅示意性地示出了该通信系统的构成, 但本发明不限于此, 可以根据实际情况确定具 体的实施方式。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行所述程序时, 所述程序使得计算机在所述基站中执行如上面实施例 1或 2所述的基于上行信号的切 换方法、 或者执行如上面实施例 7或 8所述的上行信号的配置方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中所述计算机 可读程序使得计算机在基站中执行上面实施例 1 或 2所述的基于上行信号的切换方 法、 或者执行如上面实施例 7或 8所述的上行信号的配置方法。
本发明实施例还提供一种计算机可读程序, 其中当在用户设备中执行所述程序 时,所述程序使得计算机在所述用户中执行如上面实施例 3所述的基于上行信号的切 换方法、 或者执行如上面实施例 9所述的上行信号的配置方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中所述计算机 可读程序使得计算机在用户设备中执行上面实施例 3 所述的基于上行信号的切换方 法、 或者执行如上面实施例 9所述的上行信号的配置方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。 本发 明涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实 现上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本 发明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储 器等。
针对附图中描述的功能方框中的一个或多个和 /或功能方框的一个或多个组合, 可以实现为用于执行本申请所描述功能的通用处理器、 数字信号处理器 (DSP)、 专 用集成电路 (ASIC)、 现场可编程门阵列 (FPGA) 或者其它可编程逻辑器件、 分立 门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方 框中的一个或多个和 /或功能方框的一个或多个组合, 还可以实现为计算设备的组合, 例如, DSP和微处理器的组合、 多个微处理器、 与 DSP通信结合的一个或多个微处 理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据 本发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范 围内。

Claims

权利要求书
1、 一种基于上行信号的切换方法, 应用于用户设备从源基站向目标基站切换的 通信系统中, 所述方法包括:
所述源基站向所述用户设备发送触发消息,以触发所述用户设备发送用于切换的 上行信号;
接收一个或多个其他基站根据对所述上行信号的探测而发送的通知消息; 所述源基站根据所述通知消息从所述一个或多个其他基站中确定所述目标基站, 并对所述用户设备进行切换。
2、 根据权利要求 1所述的切换方法, 其中, 所述方法还包括: 所述源基站与所 述其他基站协商所述用户设备的上行信号的配置信息。
3、 根据权利要求 2所述的切换方法, 其中, 所述源基站与所述其他基站协商所 述用户设备的上行信号的配置信息, 具体包括:
所述源基站向所述其他基站发送第一消息,所述第一消息包含所述源基站的用户 设备的上行信号的配置信息;
接收所述其他基站回复的第二消息; 所述第二消息为确认消息、或者包含所述其 他基站的用户设备的上行信号的配置信息。
4、 根据权利要求 1所述的切换方法, 其中, 所述方法还包括:
所述源基站向所述其他基站发送第三消息,所述第三消息包含所述源基站的一个 或多个用户设备的上行信号的配置信息。
5、 根据权利要求 4所述的切换方法, 其中, 所述方法还包括:
所述源基站接收所述其他基站发送的第四消息,所述第四消息用于拒绝所述第三 消息中的全部或者部分用户设备的上行信号的配置信息。
6、 根据权利要求 5所述的切换方法, 其中, 所述第四消息包括拒绝原因和 /或推 荐用户设备的上行信号的配置信息。
7、 根据权利要求 1所述的切换方法, 其中, 所述方法还包括:
所述源基站向所述用户设备发送所述上行信号的配置信息。
8、 根据权利要求 1所述的切换方法, 其中, 所述触发消息中包含所述上行信号 的配置信息。
9、 根据权利要求 2至 8任一项所述的切换方法, 其中, 所述上行信号的配置信 息包括以下信息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
10、 根据权利要求 9所述的切换方法, 其中, 所述上行信号的次数或时间信息具 体包括:
所述上行信号应该发送的次数、最大发送次数和最小发送次数的其中一种或其组 合.
或者, 允许所述上行信号发送的时间段信息、最少时间长度和最大时间长度的其 中之一或其组合。
11、 根据权利要求 9所述的切换方法, 其中, 所述上行信号的特征信息具体包括 产生所述上行信号的序列信息。
12、 根据权利要求 9所述的切换方法, 其中, 所述上行信号是用于随机接入的前 导序列信号; 所述上行信号的特征信息至少包括: PRACH-Config, ACH-ConfigCommon或 ACH-ConfigDedicated信息实体中的至少一个信息; 或者, 所述上行信号是侦听参考信号; 所述上行信号的特征信息至少包括: Sounding S-UL-Config信息实体中的至少一个信息。
或者, 所述上行信号是解调参考信号, 所述上行信号的特征信息至少包括: DM- S-Config信息实体中的至少一个信息。
13、 根据权利要求 2至 8任一项所述的切换方法, 其中, 所述上行信号的配置信 息是区分用户设备的, 或者是区分小区的, 或者是区分基站的。
14、 根据权利要求 2至 8任一项所述的切换方法, 其中, 所述上行信号的配置信 息中, 一部分是区分用户的, 一部分是区分小区的, 一部分是区分基站的。
15、 根据权利要求 1所述的切换方法, 其中, 所述通知消息包括如下信息的其中 一种或其组合:
所述上行信号被所述其他基站探测到的用户设备的标示符;探测到的所述上行信 号的个数; 探测到的所述上行信号的信号强度或信号质量; 探测到的所述上行信号的 平均信号强度或平均信号质量;探测到的所述上行信号的加权平均信号强度或加权平 均信号质量; 判定所述上行信号能够被探测到时所用的信号强度或信号质量的门限 值。
16、一种基于上行信号的切换方法, 应用于用户设备从源基站向目标基站切换的 通信系统中, 所述方法包括:
所述目标基站探测所述用户设备发送的用于切换的上行信号;
根据对所述上行信号的探测向所述源基站发送通知消息;使得所述源基站根据所 述通知消息对所述用户设备进行切换。
17、 根据权利要求 16所述的切换方法, 其中, 所述方法还包括: 所述目标基站 与所述源基站协商所述用户设备的上行信号的配置信息。
18、 根据权利要求 17所述的切换方法, 其中, 所述目标基站与所述源基站协商 所述用户设备的上行信号的配置信息, 具体包括: 所述目标基站接收所述源基站发送的第一消息,所述第一消息包含所述源基站的 用户设备的上行信号的配置信息;
向所述源基站回复第二消息; 所述第二消息为确认消息、或者包含所述目标基站 的用户设备的上行信号的配置信息。
19、 根据权利要求 16所述的切换方法, 其中, 所述方法还包括:
所述目标基站接收所述源基站发送的第三消息,所述第三消息包含所述源基站的 一个或多个用户设备的上行信号的配置信息。
20、 根据权利要求 19所述的切换方法, 其中, 所述方法还包括:
所述目标基站向所述源基站发送第四消息,所述第四消息用于拒绝所述第三消息 中的全部或者部分用户设备的上行信号的配置信息。
21、 根据权利要求 17至 20任一项所述的切换方法, 其中, 所述上行信号的配置 信息包括以下信息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
22、 根据权利要求 16所述的切换方法, 其中, 所述方法还包括:
所述目标基站激活所述上行信号所在的频率、 或者所述频率对应的小区接收机。
23、 根据权利要求 16所述的切换方法, 其中, 所述方法还包括:
所述目标基站设置定时器;
并且, 在所述定时器超时前探测所述上行信号。
24、 根据权利要求 16所述的切换方法, 其中, 所述方法还包括:
所述目标基站根据探测到的所述上行信号是否满足预设的条件,来判断所述用户 设备是否能够进行切换;
并且, 根据判断结果向所述源基站发送所述通知消息。
25、 根据权利要求 24所述的切换方法, 其中, 所述预设的条件包括: 所述上行 信号被正确接收了预定的次数, 和 /或在正确收到的上行信号中、 信号强度或信号质 量超过预设门限值的个数超过了预定值。
26、 根据权利要求 16所述的切换方法, 其中, 所述通知消息包括如下信息的其 中一种或其组合:
所述上行信号被所述目标基站探测到的用户设备的标示符;探测到的所述上行信 号的个数; 探测到的所述上行信号的信号强度或信号质量; 探测到的所述上行信号的 平均信号强度或平均信号质量;探测到的所述上行信号的加权平均信号强度或加权平 均信号质量; 判定所述上行信号能够被探测到时所用的信号强度或信号质量的门限 值。
27、一种基于上行信号的切换方法, 应用于用户设备从源基站向目标基站切换的 通信系统中, 所述方法包括:
所述用户设备接收所述源基站发送的触发消息;
根据所述触发消息发送用于切换的上行信号;使得一个或多个其他基站根据对所 述上行信号的探测而向所述源基站发送通知消息, 以及所述源基站根据所述通知消息 对所述用户设备进行切换。
28、 根据权利要求 27所述的切换方法, 其中, 所述方法还包括:
所述用户设备接收所述源基站发送的所述上行信号的配置信息。
29、 根据权利要求 27所述的切换方法, 其中, 所述触发消息中包含所述上行信 号的配置信息。
30、 根据权利要求 27所述的切换方法, 其中, 所述用户设备根据所述触发消息 来发送一次或者多次所述上行信号。
31、 根据权利要求 28至 30任一项所述的切换方法, 其中, 所述上行信号的配置 信息包括以下信息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
32、 一种基站, 应用于用户设备从所述基站向目标基站切换的通信系统中, 所述 基站包括:
消息发送单元, 向所述用户设备发送触发消息, 以触发所述用户设备发送用于切 换的上行信号;
通知接收单元,接收一个或多个其他基站根据对所述上行信号的探测而发送的通 知消息;
切换单元, 根据所述通知消息从所述一个或多个其他基站中确定所述目标基站, 并对所述用户设备进行切换。
33、 根据权利要求 32所述的基站, 其中, 所述基站还包括:
协商单元, 与所述其他基站协商所述用户设备的上行信号的配置信息。
34、 根据权利要求 33所述的基站, 其中, 所述协商单元具体包括:
第一发送单元, 向所述其他基站发送第一消息, 所述第一消息包含所述源基站的 用户设备的上行信号的配置信息;
第一接收单元, 接收所述其他基站回复的第二消息; 所述第二消息为确认消息、 或者包含所述其他基站的用户设备的上行信号的配置信息。
35、 根据权利要求 32所述的基站, 其中, 所述基站还包括:
第二发送单元, 向所述其他基站发送第三消息, 所述第三消息包含所述基站的一 个或多个用户设备的上行信号的配置信息。
36、 根据权利要求 32所述的基站, 其中, 所述基站还包括:
第二接收单元, 接收所述其他基站发送的第四消息, 所述第四消息用于拒绝所述 第三消息中的全部或者部分用户设备的上行信号的配置信息。
37、 根据权利要求 32所述的基站, 其中, 所述基站还包括:
信息发送单元, 向所述用户设备发送所述上行信号的配置信息。
38、 一种基站, 应用于用户设备从源基站向所述基站切换的通信系统中, 所述基 站包括:
探测单元, 探测所述用户设备发送的用于切换的上行信号;
通知发送单元, 根据对所述上行信号的探测向所述源基站发送通知消息; 使得所 述源基站根据所述通知消息对所述用户设备进行切换。
39、 根据权利要求 38所述的基站, 其中, 所述基站还包括:
协商单元, 与所述源基站协商所述用户设备的上行信号的配置信息。
40、 根据权利要求 39所述的基站, 其中, 所述协商单元具体包括:
第三接收单元, 接收所述源基站发送的第一消息, 所述第一消息包含所述源基站 的用户设备的上行信号的配置信息;
第三发送单元, 向所述源基站回复第二消息; 所述第二消息为确认消息、 或者包 含所述基站的用户设备的上行信号的配置信息。
41、 根据权利要求 38所述的基站, 其中, 所述基站还包括:
第四接收单元, 接收所述源基站发送的第三消息, 所述第三消息包含所述源基站 的一个或多个用户设备的上行信号的配置信息。
42、 根据权利要求 41所述的基站, 其中, 所述基站还包括:
第四发送单元, 向所述源基站发送第四消息, 所述第四消息用于拒绝所述第三消 息中的全部或者部分用户设备的上行信号的配置信息。
43、 根据权利要求 38所述的基站, 其中, 所述基站还包括:
激活单元, 激活所述上行信号所在的频率、 或者所述频率对应的小区接收机。
44、 根据权利要求 38所述的基站, 其中, 所述基站还包括:
定时设置单元, 设置定时器;
并且, 所述探测单元在所述定时器超时前探测所述上行信号。
45、 根据权利要求 38所述的基站, 其中, 所述基站还包括:
判断单元, 根据所述上行信号判断所述用户设备是否能够进行切换;
并且, 所述通知发送单元根据判断结果, 向所述源基站发送所述通知消息。
46、一种用户设备,应用于所述用户设备从源基站向目标基站切换的通信系统中, 所述用户设备包括:
消息接收单元, 接收所述源基站发送的触发消息; 信号发送单元, 根据所述触发消息发送用于切换的上行信号; 使得一个或多个其 他基站根据对所述上行信号的探测而向所述源基站发送通知消息,以及所述源基站根 据所述通知消息对所述用户设备进行切换。
47、 根据权利要求 46所述的用户设备, 其中, 所述用户设备还包括: 信息接收单元, 接收所述源基站发送的所述上行信号的配置信息。
48、 一种上行信号的配置方法, 所述方法包括:
第一基站与第二基站协商用户设备的上行信号的配置信息;
所述第一基站向所述用户设备发送所述上行信号的配置信息,使得所述用户设备 根据所述配置信息发送所述上行信号,并且所述第二基站根据所述配置信息探测所述 上行信号。
49、 根据权利要求 48所述的方法, 其中, 所述第一基站与第二基站协商用户设 备的上行信号的配置信息, 具体包括:
所述第一基站向所述第二基站发送第一消息,所述第一消息包含所述第一基站的 用户设备的上行信号的配置信息;
接收所述第二基站回复的第二消息; 所述第二消息为确认消息、或者包含所述第 二基站的用户设备的上行信号的配置信息。
50、 根据权利要求 48所述的方法, 其中, 所述方法还包括:
所述第一基站向所述第二基站发送第三消息,所述第三消息包含所述第一基站的 一个或多个用户设备的上行信号的配置信息。
51、 根据权利要求 50所述的方法, 其中, 所述方法还包括:
所述第一基站接收所述第二基站发送的第四消息,所述第四消息用于拒绝所述第 三消息中的全部或者部分用户设备的上行信号的配置信息。
52、 根据权利要求 48至 51任一项所述的方法, 其中, 所述上行信号的配置信息 包括以下信息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
53、 根据权利要求 52所述的方法, 其中, 所述上行信号的次数或时间信息具体 包括:
所述上行信号应该发送的次数、最大发送次数和最小发送次数的其中一种或其组 合.
或者, 允许所述上行信号发送的时间段信息、最少时间长度和最大时间长度的其 中之一或其组合。
54、 根据权利要求 52所述的方法, 其中, 所述上行信号的特征信息具体包括产 生所述上行信号的序列信息。
55、 根据权利要求 52所述的方法, 其中, 所述上行信号是用于随机接入的前导 序列信号;所述上行信号的特征信息至少包括: PRACH-Config, RACH-ConfigCommon 或 ACH-ConfigDedicated信息实体中的至少一个信息;
或者, 所述上行信号是侦听参考信号; 所述上行信号的特征信息至少包括:
Sounding S-UL-Config信息实体中的至少一个信息。
或者, 所述上行信号是解调参考信号, 所述上行信号的特征信息至少包括: DM- S-Config信息实体中的至少一个信息。
56、 根据权利要求 48所述的方法, 其中, 所述方法还包括:
所述第一基站向所述用户设备发送触发消息, 以触发所述用户设备发送用于切换 的上行信号;
接收一个或多个所述第二基站根据对所述上行信号的探测而发送的通知消息; 所述第一基站根据所述通知消息从所述一个或多个所述第二基站中确定目标基 站, 并对所述用户设备进行切换。
57、 根据权利要求 56所述的方法, 其中, 所述通知消息包括如下信息的其中一 种或其组合:
所述上行信号被所述第二基站探测到的用户设备的标示符;探测到的所述上行信 号的个数; 探测到的所述上行信号的信号强度或信号质量; 探测到的所述上行信号的 平均信号强度或平均信号质量;探测到的所述上行信号的加权平均信号强度或加权平 均信号质量; 判定所述上行信号能够被探测到时所用的信号强度或信号质量的门限 值。
58、 一种上行信号的配置方法, 所述方法包括:
第二基站与第一基站协商用户设备的上行信号的配置信息;
所述第二基站根据所述配置信息对所述用户设备发送的上行信号进行探测。
59、 根据权利要求 58所述的方法, 其中, 所述第二基站与第一基站协商用户设 备的上行信号的配置信息, 具体包括:
所述第二基站接收所述第一基站发送的第一消息,所述第一消息包含所述第一基 站的用户设备的上行信号的配置信息;
向所述第一基站回复第二消息; 所述第二消息为确认消息、或者包含所述第二基 站的用户设备的上行信号的配置信息。
60、 根据权利要求 59所述的方法, 其中, 所述方法还包括:
所述第二基站接收所述第一基站发送的第三消息,所述第三消息包含所述第一基 站的一个或多个用户设备的上行信号的配置信息。
61、 根据权利要求 60所述的方法, 其中, 所述方法还包括:
所述第二基站向所述第一基站发送第四消息,所述第四消息用于拒绝所述第三消 息中的全部或者部分用户设备的上行信号的配置信息。
62、 根据权利要求 58至 61任一项所述的方法, 其中, 所述上行信号的配置信息 包括以下信息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
63、 根据权利要求 58所述的方法, 其中, 所述方法还包括:
根据对所述上行信号的探测向所述第一基站发送通知消息;使得所述第一基站根 据所述通知消息对所述用户设备进行切换。
64、 根据权利要求 58所述的方法, 其中, 所述方法还包括:
所述第二基站激活所述上行信号所在的频率、 或者所述频率对应的小区接收机。
65、 一种上行信号的配置方法, 所述方法包括:
用户设备接收第一基站发送的上行信号的配置信息;
根据所述配置信息发送上行信号;使得一个或多个第二基站对所述上行信号进行 探测。
66、 根据权利要求 65所述的方法, 其中, 所述上行信号的配置信息包括以下信 息的任一种或其组合:
所述上行信号的发射功率; 发送所述上行信号的载频信息或者小区信息; 所述用 户设备切换的目标载频信息或者小区信息; 所述用户设备的标识信息; 所述用户设备 的适用用户类型信息; 发送所述上行信号的资源信息; 所述上行信号的次数或时间信 息; 所述上行信号的特征信息。
67、 根据权利要求 65所述的方法, 其中, 所述方法还包括:
所述用户设备接收所述第一基站发送的触发消息;
并且, 根据所述触发消息以及所述配置信息发送所述上行信号。
68、 一种基站, 所述基站包括:
协商单元, 与一个或多个第二基站协商用户设备的上行信号的配置信息; 信息发送单元, 向用户设备发送所述上行信号的配置信息。
69、 根据权利要求 68所述的基站, 其中, 所述协商单元具体包括:
第一发送单元, 向所述第二基站发送第一消息, 所述第一消息包含所述基站的用 户设备的上行信号的配置信息;
第一接收单元, 接收所述第二基站回复的第二消息; 所述第二消息为确认消息、 或者包含所述第二基站的用户设备的上行信号的配置信息。
70、 根据权利要求 69所述的基站, 其中, 所述基站还包括:
第二发送单元, 向所述第二基站发送第三消息, 所述第三消息包含所述基站的一 个或多个用户设备的上行信号的配置信息。
71、 根据权利要求 70所述的基站, 其中, 所述基站还包括:
第二接收单元, 接收所述第二基站发送的第四消息, 所述第四消息用于拒绝所述 第三消息中的全部或者部分用户设备的上行信号的配置信息。
72、 根据权利要求 68所述的基站, 其中, 所述基站还包括:
消息发送单元, 向所述用户设备发送触发消息, 以触发所述用户设备发送用于切 换的上行信号;
通知接收单元,接收一个或多个所述第二基站根据对所述上行信号的探测而发送 的通知消息;
切换单元, 根据所述通知消息从所述一个或多个第二基站中确定目标基站, 并对 所述用户设备进行切换。
73、 一种基站, 所述基站包括:
协商单元, 与第一基站协商用户设备的上行信号的配置信息;
探测单元, 根据所述配置信息对所述用户设备发送的上行信号进行探测。
74、 根据权利要求 73所述的基站, 其中, 所述协商单元具体包括:
第三接收单元, 接收所述第一基站发送的第一消息, 所述第一消息包含所述第一 基站的用户设备的上行信号的配置信息;
第三发送单元, 向所述第一基站回复第二消息; 所述第二消息为确认消息、 或者 包含所述基站的用户设备的上行信号的配置信息。
75、 根据权利要求 73所述的基站, 其中, 所述基站还包括:
第四接收单元, 接收所述第一基站发送的第三消息, 所述第三消息包含所述第一 基站的一个或多个用户设备的上行信号的配置信息。
76、 根据权利要求 75所述的基站, 其中, 所述基站还包括:
第四发送单元, 向所述第一基站发送第四消息, 所述第四消息用于拒绝所述第三 消息中的全部或者部分用户设备的上行信号的配置信息。
77、 根据权利要求 73所述的基站, 其中, 所述基站还包括:
通知发送单元, 根据对所述上行信号的探测向所述第一基站发送通知消息; 使得 所述第一基站根据所述通知消息对所述用户设备进行切换。
78、 根据权利要求 73所述的基站, 其中, 所述基站还包括:
激活单元, 激活所述上行信号所在的频率、 或者所述频率对应的小区接收机。
79、 一种用户设备, 所述用户设备包括:
信息接收单元, 接收第一基站发送的上行信号的配置信息;
信号发送单元, 根据配置触发消息发送上行信号; 使得一个或多个第二基站对所 述上行信号进行探测。
80、 根据权利要求 79所述的用户设备, 其中, 所述用户设备还包括: 消息接收单元, 接收所述第一基站发送的触发消息;
并且,所述信号发送单元还用于根据所述触发消息以及所述配置信息发送所述上 行信号。
81、 一种通信系统, 所述通信系统包括如权利要求 32至 37任一项所述的基站、 如权利要求 38至 45任一项所述的基站、 以及如权利要求 47或 48所述的用户设备; 或者, 所述通信系统包括如权利要求 68至 72任一项所述的基站、 如权利要求 73至 78任一项所述的基站、 以及如权利要求 79或 80所述的用户设备。
82、 一种计算机可读程序, 其中当在基站中执行所述程序时, 所述程序使得计算 机在所述基站中执行如权利要求 1至 26中任一项所述的基于上行信号的切换方法; 或者执行如权利要求 48至 64中任一项所述的上行信号的配置方法。
83、一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算 机在基站中执行如权利要求 1至 26中任一项所述的基于上行信号的切换方法; 或者 执行如权利要求 48至 64中任一项所述的上行信号的配置方法。
84、 一种计算机可读程序, 其中当在用户设备中执行所述程序时, 所述程序使得 计算机在所述用户设备中执行如权利要求 27至 31中任一项所述的基于上行信号的切 换方法; 或者执行如权利要求 65至 67中任一项所述的上行信号的配置方法。
85、一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算 机在用户设备中执行如权利要求 39至 48中任一项所述的基于上行信号的切换方法; 或者执行如权利要求 65至 67中任一项所述的上行信号的配置方法。
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