WO2017050195A1 - 无线通信系统中的电子设备和无线通信方法 - Google Patents

无线通信系统中的电子设备和无线通信方法 Download PDF

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Publication number
WO2017050195A1
WO2017050195A1 PCT/CN2016/099312 CN2016099312W WO2017050195A1 WO 2017050195 A1 WO2017050195 A1 WO 2017050195A1 CN 2016099312 W CN2016099312 W CN 2016099312W WO 2017050195 A1 WO2017050195 A1 WO 2017050195A1
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WIPO (PCT)
Prior art keywords
relay
electronic device
event
user equipment
measurement report
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Ceased
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PCT/CN2016/099312
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English (en)
French (fr)
Inventor
许晓东
张轶
肖韵秋
王策
柯希
胡秉珊
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Sony Corp
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Sony Corp
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Application filed by Sony Corp filed Critical Sony Corp
Priority to US15/758,222 priority Critical patent/US10687258B2/en
Priority to EP19200187.3A priority patent/EP3611965A1/en
Priority to EP16848076.2A priority patent/EP3349506B1/en
Priority to ES16848076T priority patent/ES2758132T3/es
Publication of WO2017050195A1 publication Critical patent/WO2017050195A1/zh
Anticipated expiration legal-status Critical
Priority to US16/866,555 priority patent/US11006341B2/en
Priority to US17/239,730 priority patent/US20210258851A1/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/08—Interfaces between hierarchically different network devices between user and terminal device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the technical field of wireless communications, and in particular to electronic devices in wireless communication systems and methods for wireless communication in wireless communication systems.
  • the handover process is initiated.
  • the UE User Equipment
  • the UE disconnects the RRC (Radio Resource Control) connection with the source cell and establishes an RRC connection with the target cell.
  • RRC Radio Resource Control
  • the following problems may occur.
  • the SINR Signal to Interference plus Noise Ratio
  • the cell boundary is no longer an ideal hexagon.
  • the SINR fluctuation may be large when the UE performs handover. Therefore, the selection of the target cell becomes more difficult during handover, and the handover process needs to be performed.
  • Reasonable configuration while avoiding ping-pong effects.
  • the communication between the remote UE and the eNodeB (evolved Node B) is switched from the previous RRC connection to the relay UE through the PC5 interface. Then, the time spent in this process will result in business interruption.
  • an electronic device in a wireless communication system in which a plurality of cells exist, the plurality of cells including a current cell in which the electronic device is located and at least one neighbor a cell
  • the electronic device includes: a transceiver; a first trigger circuit configured to cause the transceiver to perform a first measurement report to assist in enabling the electronic device to communicate with the current cell via a relay user equipment a relay process for communicating; a second trigger circuit configured to cause the transceiver to perform a second measurement report to assist in initiating a handover for switching the electronic device from the current cell to the neighboring cell
  • the one or more processing circuits configured to control the first trigger circuit and the second trigger circuit to cause the transceiver to perform the first before performing the second measurement report Measurement reported.
  • an electronic device in a wireless communication system in which a plurality of cells exist, the plurality of cells including a current cell in which the electronic device is located, and at least one phase a neighboring cell
  • the electronic device comprising: one or more processing circuits, the processing circuit configured to: obtain a first measurement report from a user equipment of the current cell; and activate to enable the user equipment a relay process of communicating with the current cell by the relay user equipment; acquiring the second measurement report from the user equipment after acquiring the first measurement report; and starting to enable the user equipment to The handover process of the current cell handover to the neighboring cell.
  • an electronic device in a wireless communication system in which a plurality of cells exist, the plurality of cells including a current cell in which the electronic device is located, and at least one phase a neighboring cell
  • the electronic device comprising: a transceiver; and one or more processing circuits, the processing circuit configured to: determine relay configuration information for user equipment in the current cell; The relay configuration information causes the transceiver to perform relay communication between the user equipment and the current cell before the user equipment switches from the current cell to the neighboring cell.
  • a wireless communication system including a current cell and at least one neighboring cell
  • a user equipment including: a first transceiver; a first trigger circuit configured to And causing the transceiver to perform a first measurement report to assist in starting a relay process for enabling the user equipment to communicate with the current cell via a relay user equipment; and a second trigger circuit configured to enable the transceiver Performing a second measurement report to assist in starting a handover process for switching the user equipment from the current cell to the neighboring cell; And one or more first processing circuits configured to control the first trigger circuit and the second trigger circuit to cause the transceiver to perform the first before performing the second measurement report
  • the base station includes: one or more second processing circuits, the second processing circuit configured to: acquire the first measurement report; initiate the relay process; After the first measurement report, acquiring the second measurement report; and starting the handover process; and relaying the user equipment, the relay user equipment comprising: a
  • a method for wireless communication in a wireless communication system in which a plurality of cells are included, the plurality of cells including a current cell and a neighboring cell, The method includes: performing a first measurement report to assist in activating a relay process for causing the electronic device to communicate with the current cell via a relay user device; and performing the first measurement reporting The second measurement is reported to assist in initiating a handover procedure for handing over the electronic device from the current cell to the neighboring cell.
  • a method for wireless communication in a wireless communication system in which a plurality of cells are included, the plurality of cells including a current cell and a neighboring cell, The method includes: acquiring a first measurement report from a user equipment of the current cell; starting a relay process for enabling the user equipment to communicate with the current cell via a relay user equipment; After a measurement report, acquiring a second measurement report from the user equipment; and initiating a handover procedure for switching the user equipment from the current cell to the neighbor cell.
  • a method for wireless communication in a wireless communication system in which a plurality of cells are included, the plurality of cells including a current cell and a neighboring cell, The method includes: determining relay configuration information for a user equipment in the current cell; and, based on the relay configuration information, before the user equipment switches from the current cell to the neighboring cell, Relay communication is performed between the user equipment and the current cell.
  • the relay process can be performed before the handover process is performed. In this way, the continuity and validity of the handover can be improved, the handover can be effectively performed, and the signaling burden of the network can be alleviated.
  • 1(a) is a schematic diagram illustrating a scenario in which a high speed UE traverses a small cell
  • FIG. 1(b) is a schematic diagram illustrating a scenario in which a UE traverses a cell edge
  • FIG. 2 is a block diagram illustrating a structure of an electronic device in a wireless communication system according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram illustrating a handover procedure according to an embodiment of the present disclosure
  • FIG. 4 illustrates a state transition diagram of a handover procedure in accordance with an embodiment of the present disclosure
  • FIG. 5 is a block diagram illustrating a structure of an electronic device in a wireless communication system according to another embodiment of the present disclosure
  • FIG. 6 is a schematic diagram illustrating division of an area in which a UE is located
  • FIG. 7 is a block diagram illustrating a structure of an electronic device in a wireless communication system according to another embodiment of the present disclosure.
  • FIG. 8 is a sequence diagram illustrating a wireless communication method according to an embodiment of the present disclosure.
  • FIG. 9 is a flowchart illustrating a wireless communication method according to an embodiment of the present disclosure.
  • FIG. 10 is a block diagram showing a first example of a schematic configuration of an eNB (evolution Node Base Station) applicable to the present disclosure
  • FIG. 11 is a block diagram showing a second example of a schematic configuration of an eNB suitable for the present disclosure
  • FIG. 12 is a block diagram showing an example of a schematic configuration of a smartphone suitable for the present disclosure.
  • FIG. 13 is a block diagram showing an example of a schematic configuration of a car navigation device applicable to the present disclosure.
  • Example embodiments are provided so that this disclosure will be thorough, and the scope will be fully conveyed by those skilled in the art. Numerous specific details, such as specific components, devices, and methods, are set forth to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent to those skilled in the art that ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; ⁇ / RTI> ⁇ RTIgt; In some example embodiments, well-known processes, well-known structures, and well-known techniques are not described in detail.
  • a UE User Equipment
  • a terminal having a wireless communication function such as a mobile terminal, a computer, an in-vehicle device, or the like.
  • the UE involved in the present disclosure may also be the UE itself or a component thereof such as a chip.
  • the base station involved in the present disclosure may be, for example, an eNB (evolution Node Base Station) or a component such as a chip in an eNB.
  • Figure 1 (a) shows a scenario in which a high speed UE traverses a small cell.
  • the UE moves from the cell A to the cell B through the cell C at a high speed.
  • the SINR Signal to Interference plus Noise Ratio
  • the cellular network assumes that the coverage of the cell is an ideal regular hexagon, because in the case of a certain service area, the cellular regular hexagon overlap area is the smallest, and is closest to the ideal antenna coverage area. Therefore, ideally, each cell has a fixed regular hexagonal cell boundary with a fixed target cell at the time of handover.
  • the boundaries of cells are often very blurred, and there are often multiple target cells in handover, especially in those without primary coverage cells. Area.
  • the SINR fluctuation may be large during the handover process. In this case, a large hysteresis parameter needs to be configured, otherwise the ping-pong effect will easily occur.
  • the larger the hysteresis parameter the lower the cell edge SINR of the corresponding serving cell at the time of handover, and the higher the probability of handover failure. Therefore, in the actual network deployment, these two aspects need to be traded off and balanced.
  • FIG. 1(b) shows the scenario in which the UE traverses the cell edge.
  • the UE arrives from the cell A through the cell B to the cell C.
  • the UE has a short stay time in the cell B, and is prone to a short-time stay event or a ping-pong handover event.
  • the SINR will rapidly decrease, and the radio link fails. This raises the balance between switching failure and ping-pong effect.
  • FIG. 2 illustrates a structure of an electronic device 200 in a wireless communication system according to an embodiment of the present disclosure.
  • the electronic device 200 can include a processing circuit 210 and trigger circuits 221 and 222. It should be noted that the electronic device 200 may include one processing circuit 210 or multiple processing circuits 210. In addition, the electronic device 200 may further include a communication unit 230 or the like as a transceiver.
  • processing circuitry 210 may include various discrete functional units to perform various different functions and/or operations. It should be noted that these functional units may be physical entities or logical entities, and differently named units may be implemented by the same physical entity.
  • the processing circuit 210 can include a control unit 211.
  • a wireless communication system there may be a plurality of cells, which may include a current cell in which the electronic device 200 is located and at least one neighboring cell.
  • the trigger circuit 221 can cause the communication unit 230 to perform a first measurement report to assist in initiating a relay process for causing the electronic device 200 to communicate with the current cell via the relay UE.
  • the trigger circuit 222 can cause the communication unit 230 to perform a second measurement report to assist in initiating a handover procedure for switching the electronic device 200 from the current cell to the neighboring cell.
  • control unit 211 can control the trigger circuits 221 and 222 to cause the communication unit 230 to perform the first measurement report before performing the second measurement report.
  • the electronic device 200 it is possible to switch from the current cell Before reaching the neighboring cell, the electronic device 200 is caused to communicate with the current cell via the relaying UE. In this way, the continuity and validity of the handover can be improved, the handover can be effectively performed, and the signaling burden of the network can be alleviated.
  • the UE of the cell A when the UE moves to the edge of the cell A, the UE of the cell A can be used as a repeater to trigger the process of the UE to the network relay. Since the coverage of the small cell C is relatively small, the communication with the cell A can be switched by the repeater within the coverage of the small cell C, and then the handover of the cell A to the cell B is performed. Since the UE is always connected by the relay, the handover failure can be avoided; the process of the UE switching to the cell C is reduced, thereby reducing the signaling burden of the network.
  • the operation of switching to the cell B may not be performed, but the process of the UE to the network relay is triggered, by using the relay.
  • the UE communicates with the base station A.
  • the UE moves to the cell edge of the cell C, it switches to the cell C. In this way, neither radio link failure nor ping-pong effect or short-term stay event occurs, so that unnecessary signaling overhead can be saved while reducing the interruption rate.
  • LTE Long Term Evolution
  • LTE-Advanced systems generates a certain service interruption time during the handover process. If a handover failure event occurs, the UE performs radio link recovery and performs an RRC (Radio Resource Control) reconstruction process.
  • RRC Radio Resource Control
  • the service interruption time generated by this process is much longer than the successful handover. Therefore, during the UE's movement, you should try to avoid the occurrence of handover failure events.
  • the ping-pong switch will greatly increase the total number of handovers, thereby increasing the service interruption time, and should also be avoided.
  • the LTE and LTE-Advanced systems introduce relays as low-power nodes deployed at the edge of the network, which closes the distance with the UE and improves the link quality.
  • Relay means that the base station or the UE does not directly transmit signals to each other, but through the relay node, and performs forwarding by signal amplification or regeneration processing.
  • the repeater can be divided into fixed, nomadic and mobile repeaters. Fixed repeaters are deployed during network planning and do not move over a long period of time.
  • a nomadic repeater is a repeater that is deployed urgently to accommodate an emergency. When the incident ends, the nomadic repeater will be removed. The mobile repeater is deployed on the vehicle and moves with the UE being served.
  • the relay UE transmits power in compliance with D2D (Device-to-Device) standards, and the power is even more Small and less disruptive.
  • the relay UE can move freely, and the number is more, so the distance between the relay UE and the UE is closer, and the link quality is better. Therefore, in the technical solution of the present disclosure, the relay process is selected to assist the handover process, thereby achieving better service continuity.
  • the traditional switching process is based on the A3 event.
  • the A3 event is triggered when the received power of the neighboring cell is greater than the received power of the serving cell plus an offset value. If the A3 event is satisfied during the TTT (Time To Trigger) time period, the measurement report will be triggered. Next, the handover procedure is initiated, disconnecting the RRC connection with the source cell, and establishing an RRC connection with the target cell.
  • TTT Time To Trigger
  • the entry conditions for the A3 event are:
  • the departure conditions for the A3 event are:
  • Mn Measurement result of the neighboring cell, regardless of calculating any offset.
  • offsetFreq The frequency-specific offset of the neighbor (ie, offsetFreq, defined as the frequency corresponding to the neighbor in measObjectEUTRA).
  • Ocn is the cell-specific offset of the neighboring cell (ie, cellIndividualOffset, which is defined as the frequency corresponding to the neighboring cell in measObjectEUTRA), and is set to zero if it is not configured for the neighboring cell.
  • Ms is the measurement result of the serving cell without calculating any offset.
  • offsetFreq is a frequency-specific offset on the service frequency (ie offsetFreq, defined in measObjectEUTRA to correspond to the service frequency).
  • Ocs is the cell-specific offset of the serving cell (ie, cellIndividualOffset, defined in measObjectEUTRA to correspond to the serving frequency) and is set to 0 if not configured for the serving cell.
  • Hys is the hysteresis parameter for this event (ie hysteres, the parameters defined for this event in reportConfigEUTRA).
  • Off is the offset parameter of the event (ie a3-Offset, the parameter defined in reportConfigEUTRA for this event).
  • the TTT timing is triggered. If the leaving condition of the A3 event is not satisfied within the TTT time, the measurement reporting of the A3 event is triggered.
  • TimeToTrigger is defined in the standardization as follows:
  • the IE TimeToTrigger specifies a range of values for triggering a time parameter, the trigger time parameter relating to a time during which a specified criteria for the event needs to be satisfied in order to trigger a measurement report.
  • the value ms0 corresponds to 0ms
  • ms40 corresponds to 40ms, and so on.
  • Hysteresis:: INTEGER(0..30)
  • IE Hysteresis is a parameter used within the entry and exit conditions of an event-triggered reporting condition.
  • the actual value is IE value *0.5 dB.
  • IE ReportConfigEUTRA is defined in the standardization as follows:
  • a3-Offset is the offset value to be used in the EUTRA measurement report trigger condition of the A3 event.
  • the actual value is IE value *0.5dB.
  • the second measurement report mentioned above may be a measurement report of the A3 event.
  • the trigger circuit 222 starts timing.
  • the trigger circuit 222 is cleared.
  • the communication unit 230 may perform a second measurement report to assist in starting the handover process.
  • the first measurement report mentioned above may be a measurement report of a relay event.
  • Processing circuitry 210 e.g., control unit 211 can configure relay events.
  • the trigger circuit 221 starts timing.
  • the trigger circuit 221 is cleared when it is determined that the leaving condition of the relay event is satisfied.
  • the communication unit 230 may perform a first measurement report to assist in starting the relay process.
  • the processing circuit 210 may configure the entry condition of the relay event such that the trigger circuit 221 starts timing before the trigger circuit 222. Further, the processing circuit 210 (eg, the control unit 211) may also configure the leaving condition of the relay event such that the trigger circuit 221 is cleared later than the trigger circuit 222.
  • a new event "R event” can be defined as a relay event.
  • the entry conditions for the R event are:
  • the leaving condition of the R event is:
  • Mp and Mn represent measurement results of the current cell and the neighboring cell, respectively;
  • Ocp and Ocn respectively represent cell-specific compensation of the cell and the neighboring cell
  • Off takes the same value as the offset of the A3 event, indicating the compensation parameter of the event
  • Hys_in a hysteresis parameter indicating the entry condition of the R event
  • Hys_out A hysteresis parameter indicating the R event leaving condition.
  • the UE periodically measures neighboring cells.
  • the R event is entered. If the departure condition of the R event is not satisfied in a TTT_R time, the measurement report of the R event is triggered (the reported content is the same as the A3 event report, including the RSRP and RSRQ (Reference Signal Receiving Quality) of the serving cell and the neighboring cell. ), cell ID, etc.), the source base station determines whether to perform a UE-to-network relay communication process.
  • the processing circuit 210 controls the trigger circuits 221 and 222 based on the RSRP received by the communication unit 230 from the current cell and the neighboring cell.
  • the processing circuit 210 may configure, for example, Hys_in and Hys_out such that the entry condition of the R event is satisfied prior to the entry condition of the A3 event, and the departure condition of the R event is satisfied later than the departure condition of the A3 event.
  • the processing circuit 210 eg, the control unit 211 can configure Hys_in and Hys_out such that the trigger circuit 221 begins timing prior to the trigger circuit 222 and causes the trigger circuit 221 to be cleared later than the trigger circuit 222.
  • processing circuit 210 may configure a relay event (e.g., an R event) to scale a parameter (e.g., Hys) that affects the hysteresis effect of the A3 event using a scaling parameter,
  • a relay event e.g., an R event
  • a parameter e.g., Hys
  • the relevant parameters (eg, Hys_in and Hys_out) of the hysteresis effect of the relay event are set, so that the communication unit 230 performs the first measurement report before performing the second measurement report.
  • the processing circuit 210 may determine the scaling parameter based on the indication information from the base station.
  • the processing circuit 210 may configure a relay event (eg, an R event) such that the hysteresis parameter (ie, Hys_in) in the entry condition of the relay event is a hysteresis in the entry condition of the A3 event.
  • the parameter (ie, Hys) is x times
  • the hysteresis parameter (ie, Hys_out) in the leaving condition of the relay event is 1+x times the hysteresis parameter (ie, Hys) in the leaving condition of the A3 event, where x is A real number ranging from 0 to 1.
  • the processing circuit 210 eg, the control unit 211
  • the control unit 211 can configure the R event to satisfy the following formula:
  • Hys_in x*Hys_A3
  • Hys_out (1+x)*Hys_A3
  • Hys_A3 indicates the hysteresis parameter of the A3 event.
  • a relay event e.g., an R event
  • Hys_in, Hys_out, and TTT_R all represent hysteresis effects of R events, and they can use the same scaling parameter x.
  • the RSRP of the serving cell is gradually reduced, the RSRP of the neighboring cell is gradually increased, and the time sequence of the entry and leaving conditions of the R event and the A3 event is satisfied as follows:
  • the R event entry condition is satisfied, the A3 event entry condition is satisfied, the A3 event leaving condition is satisfied, and the R event leaving condition is satisfied.
  • FIG. 3 illustrates a handover procedure in accordance with an embodiment of the present disclosure.
  • UE1 is moving from A to B.
  • the entry condition of the A3 event is satisfied; and when UE1 moves to point 3, the handover process is initiated after the TTT time.
  • the process of UE to network relay is triggered, for example, by UE2 communicating with base station 1.
  • UE1 reaches point 2 it satisfies the entry condition of the A3 event, and after a configurable TTT time, the cell 1 to cell 2 handover is triggered, thereby reducing the interruption probability and improving the continuity of the service.
  • the processing circuit 210 (eg, control) Unit 211) can adjust TTT_A3 to 1-x times.
  • x is a real number ranging from 0 to 1.
  • the Enhanced TTT_A3 can be dynamically configured according to whether the neighboring cell satisfying the R event trigger condition and the A3 event entry condition is the same to reduce the handover failure probability and the ping-pong handover. Probability.
  • TTT_A3 represents TTT_A3 that has been adjusted by speedstatescalefactor.
  • the processing circuit 210 may perform control to cause the electronic device 200 to connect to the relay UE through the proximity-based service, Communicating with the current cell via the relay UE before switching from the current serving cell to the neighboring cell.
  • the UE terminal is in the process of motion, the UE-to-network relay communication has been triggered, but for some reason to re-fold back to the serving cell, it is necessary to switch back from the communication with the relay UE to directly communicate with the base station.
  • the electronic device 200 shown in FIG. 2 may further include a third trigger circuit (not shown) for causing the communication unit 230 to perform a third measurement report to assist in starting.
  • a "de-relay" process for causing the electronic device 200 to return to communicating directly with the current cell.
  • the third measurement report may be a measurement report of the de-relay event.
  • the processing circuit 210 eg, the control unit 211 may configure the de-relay event such that when it is determined that the entry condition of the de-relay event is satisfied, the third trigger circuit starts timing; when it is determined that the departure condition of the de-relay event is satisfied The third trigger circuit is cleared to zero; and when the timing result of the third trigger circuit is equal to the trigger time TTT_ ⁇ R, the communication unit 230 is caused to perform a third measurement report to assist in starting the de-relay process.
  • Processing circuitry 210 may configure the entry conditions for the de-relay event such that the entry condition for the de-relay event is the same as the exit condition for the relay event.
  • processing circuit 210 may also configure the leaving condition of the de-relay event such that the leaving condition of the de-ringing event is the same as the entering condition of the relaying event.
  • a new event " ⁇ R event” can be defined as a de-relay event.
  • the entry conditions for the ⁇ R event are:
  • the departure condition of the ⁇ R event is:
  • the entry and exit conditions of the R event and the ⁇ R event are exactly the opposite. That is, if the received power of the serving cell is greater than the received power of the neighboring cell plus a hysteresis value, then the ⁇ R event is entered. If the departure condition of the ⁇ R event is not satisfied within the trigger time TTT_ ⁇ R of the ⁇ R event, the triggering of the -R event is triggered, and the base station determines whether to switch from communication through the relay to direct communication with the base station.
  • FIG. 4 illustrates a state transition diagram of a handover procedure in accordance with an embodiment of the present disclosure. The transition of the different states of the switching process can be clearly seen from Figure 4.
  • the wireless communication system as described above may be an LTE-A (Long Term Evolution-Advanced) cellular communication system, and the electronic device 200 may be in a wireless communication system.
  • LTE-A Long Term Evolution-Advanced
  • the electronic device 200 may be in a wireless communication system.
  • UE User Equipment
  • FIG. 5 illustrates a structure of an electronic device 500 in a wireless communication system according to another embodiment of the present disclosure. Likewise, there are a plurality of cells in the wireless communication system, the plurality of cells including a current cell in which the electronic device 500 is located and at least one neighboring cell.
  • electronic device 500 can include processing circuitry 510. It should be noted that the electronic device 500 may include one processing circuit 510 or multiple processing circuits 510. In addition, the electronic device 500 may further include a communication unit 520 such as a transceiver.
  • a communication unit 520 such as a transceiver.
  • processing circuit 510 can also include various discrete functional units to perform various different functions and/or operations. These functional units may be physical entities or logical entities, and differently named units may be implemented by the same physical entity.
  • the processing circuit 510 may include an acquisition unit 511 and activation units 512 and 513.
  • the obtaining unit 511 can acquire the first measurement report of the UE from the current cell.
  • the initiating unit 512 can initiate a relay process for causing the UE to communicate with the current cell via the relay UE.
  • the obtaining unit 511 may further acquire the second measurement report from the UE.
  • the initiating unit 513 may initiate a handover procedure for handover of the UE from the current cell to the neighboring cell.
  • the processing circuit 510 may also acquire area information of each UE in the current cell. Based on the region information, processing circuitry 510 (eg, a determining unit, which is not shown) may determine at least one candidate relaying UE. After this, processing circuit 510 (eg, a selection unit, which is not shown) may select one of the candidate relay UEs as the relay UE.
  • processing circuitry 510 eg, a determining unit, which is not shown
  • processing circuit 510 eg, a selection unit, which is not shown
  • the processing circuit 510 may further acquire at least one of mobile state information, power amount information, load information, and quality of service information of each of the candidate relay UEs. Based on at least one of the acquired mobility state information, power amount information, load information, and quality of service information, processing circuitry 510 (eg, a determining unit, which is not shown) may determine that the relay capability of each of the candidate relaying UEs is prioritized level. After this, processing circuit 510 (eg, a determining unit, which is not shown) may determine the relaying UE based on the relay capability priority.
  • the serving cell can be divided into a central area, an edge area, and an intermediate area, as shown in FIG. 6.
  • RSSI Received Signal Strength Indication
  • the UE monitors the SINR of the serving cell in a certain period and compares it with a preset threshold SINR_LOW and SINR_MEDIUM (the SINR is filtered by L1 and L3). After the wave results):
  • SINR SINR ⁇ SINR_LOW
  • SINR_LOW ⁇ SINR ⁇ SINR ⁇ SINR_MEDIUM it is determined that the UE is in Region 2 in FIG. 6;
  • SINR SINR_MEDIUM
  • the value of the SINR is not used as the area division basis, because if the RSRP values of the serving cell and the neighboring cell received by the UE are both large, the UE is not in the cell center area. Rather, it is approximately in the mid-span line connecting the serving cell and the neighboring cell, and the value of the SINR of the UE is not large at this time. It can be seen that it is more reasonable to divide the area based on SINR.
  • the UE By monitoring the rate of change of the RSRP of the serving cell, the UE can be divided into a high-speed UE, a medium-speed UE, and a low-speed UE (the method of dividing the high-, medium-, and low-speed UEs in a manner of re-selecting the number of times of the traditional statistical cell can more accurately determine the state of the UE at the current moment. To help select the appropriate temporary handover assisted relay UE).
  • the state of the UE in the relay role needs to be relatively stable, that is, it has a relatively stable link quality with the base station, and is in a medium-low speed moving state. Therefore, in order to determine the range of the relay UE, the amount of change of the serving cell RSRP can be monitored.
  • the RSRP variation of the serving cell in a certain time window is represented by ⁇ RSRP_S, and the sliding period of the sliding window is consistent with the filtering period of the layer three filter, and the update of ⁇ RSRP_S is generally performed every 200 ms.
  • the ⁇ RSRP_S is compared with a preset threshold ⁇ RSRP_LOW and ⁇ RSRP_MEDIUM to determine the motion speed of the UE:
  • ⁇ RSRP_S ⁇ RSRP_LOW it means that the UE is in a low speed motion state
  • ⁇ RSRP_S> ⁇ RSRP_MEDIUM it means that the UE is in a high-speed motion state.
  • the ⁇ RSRP_LOW and the ⁇ RSRP_MEDIUM may be dynamically configured according to the type of the serving cell of the UE, and may be sent by the base station to the UE by using the measurement configuration information.
  • the UE can be divided into different situations to determine which UEs are about to perform the handover process, which UEs are about to move from the coverage area to the coverage area, and which UEs belong to the public security status. .
  • the UE moves in the mobile process, or the mobile speed is small, and resides in the serving cell; or the cell A moves to the cell B, and the handover process is to be performed; or the coverage is moved out of the coverage; or because the small cell is closed or the natural disaster Damage to the equipment causes the moment to be out of coverage.
  • the UE is in a different situation, and the tasks that can be undertaken are different, and the operations that need to be performed are also different. Therefore, according to an embodiment of the present disclosure, a situation indicator may be added to the UE measurement report information to indicate the state in which the UE is in, and reported to the base station for the base station to perform control.
  • the situation indicator can be represented by two binary digits:
  • ⁇ RSRP ⁇ _th1 it means that the UE moves at a small speed and basically resides in the serving cell, and the situation indicator is ‘00’;
  • the situation indicator is '01', where RSRP_N represents the received power of the neighboring cell;
  • the situation indicator is '10';
  • the RSRP_S is not measured instantaneously, it means that the UE has no service for a moment due to some special reasons, and the situation indicator is '11'.
  • the processing circuit 210 (for example, the control unit 211) in the electronic device 200 illustrated in FIG. 2 may further configure an entry condition of a relay event such that only when determining the electronic device 200 When the handover process is about to enter (that is, when the situation indicator is '01'), the entry condition of the relay event is satisfied.
  • the UE can be selected to monitor the RSRP and the SINR to determine the area to which the UE belongs and its mobile state, and has the following advantages compared with the scheme of base station positioning and the like.
  • the current indoor positioning does not support GPS (Global Positioning System), and only traditional OTDOA (Observed Time Difference Of Arrival) positioning methods are used. Not only the process is complicated, but frequent positioning will cause the network. The signaling burden, and the positioning accuracy is on the order of ten meters to several tens of meters, which is almost comparable to the coverage of low power nodes, causing large errors.
  • GPS Global Positioning System
  • OTDOA Observed Time Difference Of Arrival
  • base station positioning only supports two dimensions of longitude and latitude, and cannot locate the height.
  • the RSRP and the SINR are measured and filtered by the UE in the traditional LTE process. Therefore, if the UE status is determined by the RSRP and the SINR, only the comparison process is performed, and the UE does not consume too much power, nor does it give The network creates an additional signaling burden.
  • a status indicator may be maintained on the UE terminal side to identify whether the UE can be used as a relay UE, and reported to the eNodeB by periodic reporting or event triggering.
  • the status indicator When the status indicator is '1', it indicates that the UE can act as a relay UE; and when the status indicator is '0', it indicates that the UE is not available as a relay UE.
  • the UE in the area 1 shown in FIG. 6 does not have the function of relaying the UE.
  • the UE terminal determines, according to the RSRP and SINR parameters of the serving cell and the neighboring cell, the mobile state, the area, the load status, and the power status according to the above-mentioned rules to determine whether it has the role of the relay UE. ability.
  • the UE terminal determines that it can serve as a relay UE, it sometimes needs to act as a long-term or permanent type of repeater like a conventional low-power node, and sometimes only needs to play a temporary auxiliary role when other UEs perform the handover process. It is therefore possible to maintain a relay type indicator at the UE terminal identifying what type of repeater the UE can serve.
  • the status indicator '1', the periodicity or event is triggered to the eNodeB.
  • the UE terminal can configure the value of the relay type indicator according to its own wishes as follows:
  • Relay type indicator '1': indicates that the UE can serve as a permanent relay UE
  • Relay Type Indicator '0': indicates that the UE can act as a temporary relay UE.
  • a UE terminal having a relay UE capability may periodically or itself trigger related information (including mobile status information, power status information, load information, and quality of service information).
  • the ground is reported to the eNodeB.
  • the eNodeB forms different relay UE pools according to the information reported by the UE, and calculates priorities of various types of relay UEs.
  • the base station can divide the relay UEs in different areas into different relay UE pools.
  • select different relay UE pools select different relay UE pools:
  • the relay UE in the region 2 may be selected to communicate;
  • the remote UE may select the relay UEs in Area 2 and Area 3 to communicate.
  • the base station can reasonably configure the relay capability.
  • the specific configuration method can be as follows:
  • Relay priority a*mobility state+b*battery level+c*laod level+d*QoS
  • a+b+c+d 1
  • a, b, c, and d represent the mobile state, the power state, the load condition, and the contribution of the QoS to the relay UE priority, respectively, and the specific parameters are obtained from the actual situation measurement results.
  • the mobility state, battery level, load level, and QoS may be normalized variables, respectively.
  • the eNodeB is responsible for ensuring that the radio interface carries the necessary QoS.
  • Each bearer has an associated QoS identifier QCI (QoS Class Identifier).
  • QCI QoS Class Identifier
  • All UE terminals report their situation indicators and status indicators periodically or event-triggered to identify what operations the UE is about to perform.
  • the reporting period can be pre-configured by the base station, and the new event for triggering can be when the situation indicator or status indicator changes.
  • a relay-capable UE terminal ie, a UE with a status indicator of '1' periodically or event-triggeredly reports its own related information, including a relay type indicator, a mobile state, an attribute area, a load level, and a battery.
  • the power is used by the base station to form different relay UE pools and relay priorities.
  • the reporting period may be pre-configured by the base station, and the new event for triggering may be when any of the reported content changes.
  • the base station selects a suitable relay UE for the UE according to the relay UE pool in which the relay UE is located and the relay priority, and delivers the configuration information related to the communication of the UE to the network relay.
  • the process of relay discovery can be saved, and the delay is small, which is suitable for occasions with high delay sensitivity of the handover process, but the quality of the selected relay UE link is generally good.
  • the base station sends the information about the qualified relay UE to the UE terminal.
  • the UE terminal measures the corresponding PC5 link quality and selects a suitable relay UE for communication. In this way, a repeater with better link quality can be selected, but there is additional signaling overhead and a large delay.
  • the first measurement report mentioned above may be a measurement report of a relay event.
  • the processing circuit 510 eg, setting unit, which is not shown
  • the processing circuitry 510 may generate measurement configuration information regarding the relaying event including the scaling parameters to inform the UE.
  • the scaling parameters here may, for example, be related to the parameters Hys_in, Hys_out and TTT_R mentioned above which represent the hysteresis effect of the R event.
  • Hys_in, Hys_out, and TTT_R can use the same scaling parameter x.
  • x ⁇ [0, x_th] may be specified, and x_th represents a maximum value that x may take, which may be dynamically configured according to the coverage radius of the source cell and the target cell in the R event.
  • R_s may be used to indicate a coverage radius of the source cell
  • R_t represents a coverage radius of the target cell
  • a handover type (2 bits) dedicated to the neighboring cell is added to indicate the handover type of the current handover.
  • the cell type can be divided into a macro cell and a low power node.
  • the configuration switching type ‘00’
  • the configuration switching type '01'
  • the configuration switch type '10'.
  • the UE terminal After receiving the information about the neighboring cell list sent by the base station, the UE terminal can dynamically configure the size range of the x value range:
  • processing circuitry 510 e.g., a determining unit, which is not shown
  • processing circuit 510 may determine whether there is an available relaying UE. Further, in response to determining that there are no available relaying UEs, processing circuit 510 may not initiate a relaying process.
  • the processing circuit 510 may also acquire the third measurement report from the UE. Based on the third measurement escalation, processing circuitry 510 (e.g., a third initiating unit, which is not shown) may initiate a des-relay procedure for causing the UE to revert to communicating directly with the current cell.
  • processing circuitry 510 e.g., a third initiating unit, which is not shown
  • the wireless communication system as described above may be In the case of an LTE-A cellular communication system, the electronic device 500 can be a base station, and the communication unit 520 can, for example, receive information transmitted by the UE of the current cell.
  • the source base station may decide whether to perform UE-to-network relay communication according to whether there is a suitable relay UE and a state of the UE.
  • the base station determines whether there is a qualified relay UE. If the base station determines that there is no eligible relay UE, the base station rejects the request of the UE terminal and maintains the original communication link. On the other hand, if the base station determines that there is a qualified relay UE, the base station starts to judge the mobile state of the UE.
  • the base station If the UE is in high speed motion, the base station agrees to the UE to network relay communication request. On the other hand, if the UE is in a medium-low speed motion, the base station determines the handover type of the UE terminal.
  • the base station If the source cell of the low- and medium-speed UE is a low-power node or the base station determines that the way to traverse the target cell is an edge passing, the base station agrees to the UE-to-network relay communication request, otherwise the base station rejects the UE-to-network relay communication request of the UE terminal. .
  • FIG. 7 illustrates a structure of an electronic device 700 in a wireless communication system according to another embodiment of the present disclosure.
  • the plurality of cells including a current cell in which the electronic device 700 is located and at least one neighboring cell.
  • electronic device 700 can include processing circuitry 710. It should be noted that the electronic device 700 may include one processing circuit 710 or multiple processing circuits 710. In addition, the electronic device 700 may also include a communication unit 720 such as a transceiver or the like.
  • processing circuit 710 may also include various discrete functional units to perform various different functions and/or operations. These functional units may be physical entities or logical entities, and differently named units may be implemented by the same physical entity.
  • the processing circuit 710 may include a determining unit 711 and a control unit 712.
  • the determining unit 711 can determine relay configuration information for the UE in the current cell.
  • the control unit 712 may cause the communication unit 720 to perform relay communication between the UE and the current cell before the UE switches from the current cell to the neighboring cell.
  • processing circuit 710 may determine from the current cell SINR. Further, based on the SINR, the processing circuit 710 (eg, the determining unit) may determine whether the area in which the electronic device 700 is located is a central area, an intermediate area, or an edge area of the current cell. Further, the processing circuit 710 (eg, the control unit) may cause the communication unit 720 to transmit the area information about the area in which the electronic device 700 is located to the base station of the current cell, so that the base station determines the candidate relay UE.
  • processing circuit 710 may cause communication unit 720 to periodically transmit zone information to the base station.
  • processing circuit 710 e.g., the control unit
  • the processing circuit 710 may determine at least one of the mobile state information, the power amount information, the load information, and the quality of service information of the electronic device 700. Further, the processing circuit 710 (eg, the control unit) may cause the communication unit 720 to transmit at least one of the determined mobility state information, power amount information, load information, and quality of service information to the base station of the current cell, so that the base station determines the middle of the electronic device 700. Following the capability priority.
  • the processing circuit 710 may determine the mobility state information regarding the speed of movement of the electronic device 700.
  • the processing circuit 710 may cause the communication unit 720 to periodically transmit at least one of the determined mobility state information, power amount information, load information, and quality of service information to the base station.
  • the processing circuit 710 may cause the communication unit 720 to determine the determined movement state information, the power amount information, and the load. At least one of the information and the quality of service information is transmitted to the base station.
  • the wireless communication system as described above may be an LTE-A cellular communication system
  • the electronic device 700 may be a relay UE in a wireless communication system.
  • FIG. 8 shows a timing diagram of a wireless communication method in accordance with an embodiment of the present disclosure.
  • the source eNB transmits signaling regarding measurement control to the UE, and transmits signaling regarding UL allocation to the UE.
  • the UE sends a measurement report of the R event to the source eNB.
  • the source eNB then makes a decision regarding UE to network relay.
  • the source eNB transmits the UE-to-network relay configuration to the UE and the relay UE, respectively.
  • the UE and the relay UE synchronize and establish a PC5 connection.
  • the UE sends a measurement report of the A3 event to the source eNB.
  • the source eNB then makes a handover decision.
  • the source eNB sends a handover request to the target eNB.
  • the target eNB When receiving the handover request, the target eNB performs admission control. In case the handover is allowed, the target eNB sends a handover request acknowledgement to the source eNB.
  • the source eNB performs SN state transfer and data forwarding to the target eNB.
  • the UE and the target eNB synchronize and perform RRC connection reconfiguration.
  • the source eNB performs UE context release and resource release, the relay UE performs PC5 connection release, and the handover process ends.
  • a wireless communication system including a current cell and at least one neighboring cell
  • the wireless communication system includes: a UE, the UE includes: a first transceiver; a triggering circuit configured to cause the transceiver to perform a first measurement report to assist in activating a relay process for causing the UE to communicate with the current cell via a relay UE; the second trigger circuit is configured to And causing the transceiver to perform a second measurement report to assist in starting a handover procedure for switching the UE from the current cell to the neighboring cell; and one or more first processing circuits configured to The first trigger circuit and the second trigger circuit perform control, so that the transceiver performs the first measurement report before performing the second measurement report; and the base station includes: one or more a second processing circuit, the second processing circuit configured to: acquire the first measurement report; initiate the relay process; after acquiring the first measurement report, obtain Transmitting the second measurement; and initiating the handover process; and relaying the
  • FIG. 9 shows a flow chart of a method of wireless communication in accordance with an embodiment of the present disclosure.
  • the plurality of cells including a current cell and a neighboring cell.
  • a first measurement report is performed in step S910 to assist in starting a relay process for causing the UE to communicate with the current cell via the relay UE.
  • step S920 a second measurement report is performed after performing the first measurement report to assist in starting a handover procedure for handover of the UE from the current cell to the neighbor cell.
  • the second measurement report can be reported for the measurement of the A3 event.
  • the timing may be started; when it is determined that the departure condition of the A3 event is satisfied; and when the timing result is equal to the trigger time TTT_A3, the second measurement report may be performed to assist the startup. Switching process.
  • the first measurement report may report the measurement of the relay event.
  • timing may be started when it is determined that an entry condition of the relay event is satisfied; cleared when it is determined that the departure condition of the relay event is satisfied; and the first measurement may be performed when the timing result is equal to the trigger time TTT_R Reported to assist in starting the relay process.
  • the timing of the relay event may precede the timing of the A3 event, and the clearing of the relay event may be later than the clearing of the A3 event.
  • the entry condition of the relay event is satisfied only when it is determined that the UE is about to enter the handover procedure.
  • control can be based on the RSRP received from the current cell and the neighboring cell.
  • the scaling parameter can be used to scale the relevant parameters affecting the hysteresis effect of the A3 event to set the relevant parameters of the hysteresis effect of the relay event, so that the first measurement report is performed before the second measurement is reported.
  • the scaling parameter may be determined based on the indication information from the base station.
  • the hysteresis parameter in the entry condition of the relay event may be configured to be x times the hysteresis parameter in the entry condition of the A3 event, and the hysteresis parameter in the departure condition of the relay event is the hysteresis in the departure condition of the A3 event 1+x times the parameter, where x is a real number ranging from 0 to 1.
  • TTT_R x * TTT_A3, where x is a real number ranging between 0 and 1.
  • TTT_A3 may be adjusted to 1-x times, where x is in the range of 0. Real number between 1 and 1.
  • control may be performed to enable the UE to connect to the relay UE by the proximity-based service to relay the UE and the current cell before switching from the current serving cell to the neighboring cell Communicate.
  • the method may further comprise: performing a third measurement report to assist in initiating a de-relay process for causing the UE to return to communicate directly with the current cell.
  • the third measurement report can report the measurement of the de-relay event. Specifically, when it is determined that the entry condition of the de-relay event is satisfied, timing may be started; when it is determined that the departure condition of the de-relay event is satisfied; and when the timing result is equal to the trigger time TTT_-R, the The third measurement is reported to assist in starting the de-relay process.
  • the entry condition of the de-relay event may be the same as the leave condition of the relay event
  • a method for wireless communication in a wireless communication system may include: acquiring a first measurement report from a UE of a current cell; and initiating for relaying the UE via a relay a relay process in which the UE communicates with the current cell; after acquiring the first measurement report, acquiring a second measurement report from the UE; and initiating for switching the UE from the current cell to the The handover process of the neighboring cell.
  • the method may further comprise: acquiring area information of each UE in the current cell; determining at least one candidate relay UE based on the area information; and selecting one of the candidate relay UEs as the relay UE.
  • the method may further include: acquiring at least one of mobile state information, power information, load information, and quality of service information of each of the candidate relay UEs; based on the acquired mobile state information, power information, load information, and At least one of the quality of service information, determining a relay capability priority of each of the candidate relay UEs; and determining the relay UE based on the relay capability priority.
  • the first measurement report may report the measurement of the relay event
  • the method may further comprise: setting a scaling parameter based on a coverage of the current cell and a coverage of the neighboring cell as the target cell; and generating a scaling parameter
  • the measurement configuration information about the relay event is notified to the UE.
  • the method may further comprise: determining whether there is an available relay UE; and in response to determining that there is no available relay UE, not starting the relay procedure.
  • the method may further comprise: after obtaining the first measurement report, acquiring a third measurement report from the UE; and initiating a de-relay process for causing the UE to return to communicate directly with the current cell.
  • a method for wireless communication in a wireless communication system may include determining relay configuration information for a UE in a current cell; And performing relay communication between the UE and the current cell before the UE switches from the current cell to a neighboring cell based on the relay configuration information.
  • the method may further comprise: determining an SINR from the current cell; determining, based on the SINR, whether the current region is the central region, the intermediate region, or the edge region of the current cell; and transmitting the region information about the currently located region to the current The base station of the cell, so that the base station determines the candidate relay UE.
  • the area information may be periodically transmitted to the base station, or the area information may be transmitted to the base station when the area information changes.
  • the method may further comprise: determining at least one of mobile state information, power amount information, load information, and quality of service information; and transmitting at least one of the determined mobile state information, power amount information, load information, and quality of service information The base station to the current cell, so that the base station determines the relay capability priority.
  • the mobile state information about the moving speed may be determined.
  • At least one of the determined movement state information, the power amount information, the load information, and the service quality information may be periodically transmitted to the base station, or may be in the determined movement state information, the power amount information, the load information, and the service quality information. At least one of the determined mobile state information, power amount information, load information, and quality of service information is transmitted to the base station when at least one of the changes occurs.
  • the base stations mentioned in this disclosure may be implemented as any type of evolved Node B (eNB), such as a macro eNB and a small eNB.
  • the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • the base station can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the base station can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
  • a body also referred to as a base station device
  • RRHs remote wireless headends
  • various types of terminals which will be described below, can operate as a base station by performing base station functions temporarily or semi-persistently.
  • the UE mentioned in the present disclosure can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/dongle dog Mobile routers and digital camera devices) or vehicle terminals (such as car navigation devices).
  • the UE may also be implemented as a terminal (also referred to as a machine type communication (MTC) terminal) that performs machine-to-machine (M2M) communication.
  • MTC machine type communication
  • M2M machine-to-machine
  • the UE may be a wireless communication module (such as an integrated circuit module including a single chip) installed on each of the above terminals.
  • FIG. 10 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied.
  • the eNB 1000 includes one or more antennas 1010 and a base station device 1020.
  • the base station device 1020 and each antenna 1010 may be connected to each other via an RF cable.
  • Each of the antennas 1010 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station device 1020 to transmit and receive wireless signals.
  • the eNB 1000 may include a plurality of antennas 1010.
  • multiple antennas 1010 can be compatible with multiple frequency bands used by eNB 1000.
  • FIG. 10 illustrates an example in which the eNB 1000 includes a plurality of antennas 1010, the eNB 1000 may also include a single antenna 1010.
  • the base station device 1020 includes a controller 1021, a memory 1022, a network interface 1023, and a wireless communication interface 1025.
  • the controller 1021 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 1020. For example, controller 1021 generates data packets based on data in signals processed by wireless communication interface 1025 and communicates the generated packets via network interface 1023. The controller 1021 can bundle data from a plurality of baseband processors to generate bundled packets and deliver the generated bundled packets. The controller 1021 may have a logical function that performs control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes.
  • the memory 1022 includes a RAM and a ROM, and stores programs executed by the controller 1021 and various types of control data such as a terminal list, transmission power data, and scheduling data.
  • Network interface 1023 is a communication interface for connecting base station device 1020 to core network 1024. Controller 1021 can communicate with a core network node or another eNB via network interface 1023. In this case, the eNB 1000 and the core network node or other eNBs may be connected to each other through a logical interface such as an S1 interface and an X2 interface. Network interface 1023 may also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If network interface 1023 is a wireless communication interface, network interface 1023 can use a higher frequency band for wireless communication than the frequency band used by wireless communication interface 1025.
  • Wireless communication interface 1025 supports any cellular communication scheme (such as Long Term Evolution (LTE)) And LTE-Advanced), and provide a wireless connection to a terminal located in a cell of the eNB 1000 via the antenna 1010.
  • Wireless communication interface 1025 may typically include, for example, a baseband (BB) processor 1026 and RF circuitry 1027.
  • the BB processor 1026 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
  • BB processor 1026 may have some or all of the above described logic functions.
  • the BB processor 1026 may be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
  • the update program can cause the functionality of the BB processor 1026 to change.
  • the module can be a card or blade that is inserted into a slot of base station device 1020. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 1027 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1010.
  • the wireless communication interface 1025 can include a plurality of BB processors 1026.
  • multiple BB processors 1026 can be compatible with multiple frequency bands used by eNB 1000.
  • the wireless communication interface 1025 can include a plurality of RF circuits 1027.
  • multiple RF circuits 1027 can be compatible with multiple antenna elements.
  • FIG. 10 illustrates an example in which the wireless communication interface 1025 includes a plurality of BB processors 1026 and a plurality of RF circuits 1027, the wireless communication interface 1025 may also include a single BB processor 1026 or a single RF circuit 1027.
  • the eNB 11 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure may be applied.
  • the eNB 1130 includes one or more antennas 1140, a base station device 1150, and an RRH 1160.
  • the RRH 1160 and each antenna 1140 may be connected to each other via an RF cable.
  • the base station device 1150 and the RRH 1160 may be connected to each other via a high speed line such as a fiber optic cable.
  • Each of the antennas 1140 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the RRH 1160 to transmit and receive wireless signals.
  • the eNB 1130 may include a plurality of antennas 1140.
  • multiple antennas 1140 can be compatible with multiple frequency bands used by eNB 1130.
  • FIG. 11 illustrates an example in which the eNB 1130 includes multiple antennas 1140, the eNB 1130 may also include a single antenna 1140.
  • the base station device 1150 includes a controller 1151, a memory 1152, a network interface 1153, a wireless communication interface 1155, and a connection interface 1157.
  • the controller 1151, the memory 1152, and the network interface 1153 are the same as the controller 1021, the memory 1022, and the network interface 1023 described with reference to FIG.
  • the wireless communication interface 1155 supports any cellular communication scheme (such as LTE and LTE-Advanced) and is provided via the RRH 1160 and the antenna 1140 to be located corresponding to the RRH 1160. Wireless communication of terminals in a sector.
  • Wireless communication interface 1155 can generally include, for example, BB processor 1156.
  • the BB processor 1156 is identical to the BB processor 1026 described with reference to FIG. 10 except that the BB processor 1156 is connected to the RF circuit 1164 of the RRH 1160 via the connection interface 1157.
  • the wireless communication interface 1155 can include a plurality of BB processors 1156.
  • multiple BB processors 1156 can be compatible with multiple frequency bands used by eNB 1130.
  • FIG. 11 illustrates an example in which the wireless communication interface 1155 includes a plurality of BB processors 1156, the wireless communication interface 1155 may also include a single BB processor 1156.
  • connection interface 1157 is an interface for connecting the base station device 1150 (wireless communication interface 1155) to the RRH 1160.
  • the connection interface 1157 may also be a communication module for communicating the base station device 1150 (wireless communication interface 1155) to the above-described high speed line of the RRH 1160.
  • the RRH 1160 includes a connection interface 1161 and a wireless communication interface 1163.
  • connection interface 1161 is an interface for connecting the RRH 1160 (wireless communication interface 1163) to the base station device 1150.
  • the connection interface 1161 may also be a communication module for communication in the above high speed line.
  • the wireless communication interface 1163 transmits and receives wireless signals via the antenna 1140.
  • Wireless communication interface 1163 can generally include, for example, RF circuitry 1164.
  • the RF circuit 1164 can include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1140.
  • the wireless communication interface 1163 can include a plurality of RF circuits 1164.
  • multiple RF circuits 1164 can support multiple antenna elements.
  • FIG. 11 illustrates an example in which the wireless communication interface 1163 includes a plurality of RF circuits 1164, the wireless communication interface 1163 may also include a single RF circuit 1164.
  • the processing circuit 510 described by using FIG. 5 and the acquisition unit 511 and the activation units 512 and 513 therein can be implemented by the controller 1021 and/or the controller 1151.
  • the communication unit 520 described by using FIG. 5 can be implemented by the wireless communication interface 1025 and the wireless communication interface 1155 and/or the wireless communication interface 1163.
  • controller 1021 and controller 1151 can perform an information acquisition function, a relay process start function, and a handover process start function by executing an instruction stored in a corresponding memory.
  • FIG. 12 is a block diagram showing an example of a schematic configuration of a smartphone 1200 to which the technology of the present disclosure can be applied.
  • the smart phone 1200 includes a processor 1201, a memory 1202, and a storage device. 1203, external connection interface 1204, imaging device 1206, sensor 1207, microphone 1208, input device 1209, display device 1210, speaker 1211, wireless communication interface 1212, one or more antenna switches 1215, one or more antennas 1216, bus 1217 The battery 1218 and the auxiliary controller 1219.
  • the processor 1201 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smartphone 1200.
  • the memory 1202 includes a RAM and a ROM, and stores data and programs executed by the processor 1201.
  • the storage device 1203 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 1204 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 1200.
  • USB universal serial bus
  • the imaging device 1206 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensor 1207 can include a set of sensors, such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor.
  • the microphone 1208 converts the sound input to the smartphone 1200 into an audio signal.
  • the input device 1209 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 1210, and receives an operation or information input from a user.
  • the display device 1210 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 1200.
  • the speaker 1211 converts the audio signal output from the smartphone 1200 into sound.
  • the wireless communication interface 1212 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 1212 may generally include, for example, BB processor 1213 and RF circuitry 1214.
  • the BB processor 1213 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • the RF circuit 1214 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1216.
  • the wireless communication interface 1212 can be a chip module on which the BB processor 1213 and the RF circuit 1214 are integrated. As shown in FIG.
  • the wireless communication interface 1212 can include a plurality of BB processors 1213 and a plurality of RF circuits 1214.
  • FIG. 12 illustrates an example in which the wireless communication interface 1212 includes a plurality of BB processors 1213 and a plurality of RF circuits 1214, the wireless communication interface 1212 may also include a single BB processor 1213 or a single RF circuit 1214.
  • wireless communication interface 1212 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 1212 can include a BB processor 1213 and RF circuitry 1214 for each wireless communication scheme.
  • Each of the antenna switches 1215 switches the connection destination of the antenna 1216 between a plurality of circuits included in the wireless communication interface 1212, such as circuits for different wireless communication schemes.
  • Each of the antennas 1216 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 1212 to transmit and receive wireless signals.
  • smart phone 1200 can include multiple antennas 1216.
  • FIG. 12 illustrates an example in which smart phone 1200 includes multiple antennas 1216, smart phone 1200 may also include a single antenna 1216.
  • smart phone 1200 can include an antenna 1216 for each wireless communication scheme.
  • the antenna switch 1215 can be omitted from the configuration of the smartphone 1200.
  • the bus 1217 stores the processor 1201, the memory 1202, the storage device 1203, the external connection interface 1204, the imaging device 1206, the sensor 1207, the microphone 1208, the input device 1209, the display device 1210, the speaker 1211, the wireless communication interface 1212, and the auxiliary controller 1219 with each other. connection.
  • Battery 1218 provides power to various blocks of smart phone 1200 shown in FIG. 12 via feeders, which are partially shown as dashed lines in the figure.
  • the secondary controller 1219 operates the minimum required functions of the smartphone 1200, for example, in a sleep mode.
  • the processing circuit 210 described with reference to FIG. 2 and the control unit 211 and the trigger circuits 221 and 222 therein, and the processing circuit 710 described by using FIG. 7 and the determining unit therein are used.
  • 711 and control unit 712 which may be implemented by processor 1201 or auxiliary controller 1219, may be implemented by wireless communication interface 1212 by communication unit 230 as described with respect to FIG. 2 and communication unit 720 as described using FIG.
  • processor 1201 or secondary controller 1219 can perform various measurement reporting functions and relay communication functions by executing instructions stored in the memory 1202 or the storage device 1203.
  • FIG. 13 is a block diagram showing an example of a schematic configuration of a car navigation device 1320 to which the technology of the present disclosure can be applied.
  • the car navigation device 1320 includes a processor 1321, a memory 1322, a global positioning system (GPS) module 1324, a sensor 1325, a data interface 1326, a content player 1327, a storage medium interface 1328, an input device 1329, a display device 1330, a speaker 1331, and a wireless device.
  • the processor 1321 can be, for example, a CPU or SoC and controls the navigation functions and additional functions of the car navigation device 1320.
  • the memory 1322 includes a RAM and a ROM, and is stored The data and the program executed by the processor 1321.
  • the GPS module 1324 measures the position (such as latitude, longitude, and altitude) of the car navigation device 1320 using GPS signals received from GPS satellites.
  • Sensor 1325 can include a set of sensors, such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor.
  • the data interface 1326 is connected to, for example, the in-vehicle network 1341 via a terminal not shown, and acquires data (such as vehicle speed data) generated by the vehicle.
  • the content player 1327 reproduces content stored in a storage medium such as a CD and a DVD, which is inserted into the storage medium interface 1328.
  • the input device 1329 includes, for example, a touch sensor, a button or a switch configured to detect a touch on the screen of the display device 1330, and receives an operation or information input from a user.
  • the display device 1330 includes a screen such as an LCD or OLED display, and displays an image of the navigation function or reproduced content.
  • the speaker 1331 outputs the sound of the navigation function or the reproduced content.
  • the wireless communication interface 1333 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 1333 may generally include, for example, BB processor 1334 and RF circuitry 1335.
  • the BB processor 1334 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and performs various types of signal processing for wireless communication.
  • the RF circuit 1335 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 1337.
  • the wireless communication interface 1333 can also be a chip module on which the BB processor 1334 and the RF circuit 1335 are integrated. As shown in FIG.
  • the wireless communication interface 1333 may include a plurality of BB processors 1334 and a plurality of RF circuits 1335.
  • FIG. 13 illustrates an example in which the wireless communication interface 1333 includes a plurality of BB processors 1334 and a plurality of RF circuits 1335, the wireless communication interface 1333 may also include a single BB processor 1334 or a single RF circuit 1335.
  • the wireless communication interface 1333 can support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near-field communication scheme, and a wireless LAN scheme.
  • the wireless communication interface 1333 may include a BB processor 1334 and an RF circuit 1335 for each wireless communication scheme.
  • Each of the antenna switches 1336 switches the connection destination of the antenna 1337 between a plurality of circuits included in the wireless communication interface 1333, such as circuits for different wireless communication schemes.
  • Each of the antennas 1337 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for transmission and connection by the wireless communication interface 1333. Receive wireless signals.
  • car navigation device 1320 can include a plurality of antennas 1337.
  • FIG. 13 illustrates an example in which the car navigation device 1320 includes a plurality of antennas 1337, the car navigation device 1320 may also include a single antenna 1337.
  • car navigation device 1320 can include an antenna 1337 for each wireless communication scheme.
  • the antenna switch 1336 can be omitted from the configuration of the car navigation device 1320.
  • Battery 1338 provides power to various blocks of car navigation device 1320 shown in FIG. 13 via a feeder, which is partially shown as a dashed line in the figure. Battery 1338 accumulates power supplied from the vehicle.
  • the processing circuit 210 described by using FIG. 2 and the control unit 211 and the trigger circuits 221 and 222 therein, and the processing circuit 710 described by using FIG. 7 and the determination therein are used.
  • the unit 711 and the control unit 712 may be implemented by the processor 1321, and may be implemented by the wireless communication interface 1333 by using the communication unit 230 described with reference to FIG. 2 and the communication unit 720 described by using FIG.
  • At least a portion of the functionality can also be implemented by processor 1321.
  • the processor 1321 can perform various measurement reporting functions and relay communication functions by executing instructions stored in the memory 1322.
  • the technology of the present disclosure may also be implemented as an onboard system (or vehicle) 1340 that includes one or more of the car navigation device 1320, the in-vehicle network 1341, and the vehicle module 1342.
  • vehicle module 1342 generates vehicle data such as vehicle speed, engine speed, and fault information, and outputs the generated data to the in-vehicle network 1341.

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Abstract

本公开涉及无线通信系统中的电子设备和无线通信方法。在无线通信系统中存在多个小区，所述多个小区包括当前小区和至少一个相邻小区。该电子设备包括：收发机；第一触发电路，被配置为使收发机进行第一测量上报，以辅助启动用于使电子设备经由中继用户设备与当前小区进行通信的中继过程；第二触发电路，被配置为使收发机进行第二测量上报，以辅助启动用于使电子设备从当前小区切换到相邻小区的切换过程；以及一个或多个处理电路，被配置为对第一和第二触发电路进行控制，以使收发机在进行第二测量上报之前进行第一测量上报。使用根据本公开的电子设备和无线通信方法，可以提高切换的连续性和有效性，保证切换有效进行，并且减轻网络的信令负担。

Description

无线通信系统中的电子设备和无线通信方法 技术领域
本公开涉及无线通信的技术领域，具体地涉及无线通信系统中的电子设备和用于在无线通信系统中进行无线通信的方法。
背景技术
这个部分提供了与本公开有关的背景信息，这不一定是现有技术。
当UE(User Equipment，用户设备)从服务小区移动到相邻小区时，会启动切换过程。当进行切换时，UE会断开与源小区的RRC(Radio Resource Control，无线资源控制)连接，并且建立与目标小区的RRC连接。
在传统的切换过程中，例如会存在以下问题。第一，当UE高速移动穿越小区时，在小区边缘SINR(Signal to Interference plus Noise Ratio，信号与干扰加噪声比)会迅速下降，导致链路质量变差甚至链路失败，并且频繁的小区切换会带来巨大的信令开销。第二，在实际小区部署情况下，小区边界不再是理想的六边形，UE进行切换时SINR的波动可能会很大，所以切换时目标小区的选择变得更加困难，需要对切换过程进行合理的配置同时避免乒乓效应。第三，当UE从覆盖范围内移动到覆盖范围外时，远程UE和eNodeB(evolved Node B，演进型节点B)之间的通信由之前的RRC连接切换为通过PC5接口由中继UE的转接，这个过程花费的时间将产生业务中断。
因此，针对以上问题中的至少一个，有必要提出一种新的无线通信技术方案，以解决UE在小区边缘的服务质量问题，提高切换的连续性和有效性，保证切换有效进行，并且减轻网络的信令负担。
发明内容
这个部分提供了本公开的一般概要，而不是其全部范围或其全部特征的全面披露。
本公开的目的在于提供一种无线通信系统中的电子设备和用于在无 线通信系统中进行无线通信的方法，使得能够提高切换的连续性和有效性，保证切换有效进行，并且减轻网络的信令负担。
根据本公开的一方面，提供了一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻小区，所述电子设备包括：收发机；第一触发电路，被配置为使所述收发机进行第一测量上报，以辅助启动用于使所述电子设备经由中继用户设备与所述当前小区进行通信的中继过程；第二触发电路，被配置为使所述收发机进行第二测量上报，以辅助启动用于使所述电子设备从所述当前小区切换到所述相邻小区的切换过程；以及一个或多个处理电路，被配置为对所述第一触发电路和所述第二触发电路进行控制，以使所述收发机在进行所述第二测量上报之前进行所述第一测量上报。
根据本公开的另一方面，提供了一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻小区，所述电子设备包括：一个或多个处理电路，所述处理电路被配置为执行以下操作：获取来自所述当前小区的用户设备的第一测量上报；启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；在获取所述第一测量上报之后，获取来自所述用户设备的第二测量上报；以及启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程。
根据本公开的另一方面，提供了一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻小区，所述电子设备包括：收发机；以及一个或多个处理电路，所述处理电路被配置为执行以下操作：确定用于所述当前小区中的用户设备的中继配置信息；以及基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，使所述收发机在所述用户设备和所述当前小区之间进行中继通信。
根据本公开的另一方面，提供了一种包括当前小区和至少一个相邻小区的无线通信系统，包括：用户设备，所述用户设备包括：第一收发机；第一触发电路，被配置为使所述收发机进行第一测量上报，以辅助启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；第二触发电路，被配置为使所述收发机进行第二测量上报，以辅助启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程； 以及一个或多个第一处理电路，被配置为对所述第一触发电路和所述第二触发电路进行控制，以使所述收发机在进行所述第二测量上报之前进行所述第一测量上报；基站，所述基站包括：一个或多个第二处理电路，所述第二处理电路被配置为执行以下操作：获取所述第一测量上报；启动所述中继过程；在获取所述第一测量上报之后，获取所述第二测量上报；以及启动所述切换过程；以及中继用户设备，所述中继用户设备包括：第二收发机；以及一个或多个第三处理电路，所述第三处理电路被配置为执行以下操作：确定用于所述用户设备的中继配置信息；以及基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，使所述收发机在所述用户设备和所述当前小区之间进行中继通信。
根据本公开的另一方面，提供了一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：进行第一测量上报，以辅助启动用于使所述电子设备经由中继用户设备与所述当前小区进行通信的中继过程；以及在进行所述第一测量上报之后进行第二测量上报，以辅助启动用于使所述电子设备从所述当前小区切换到所述相邻小区的切换过程。
根据本公开的另一方面，提供了一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：获取来自所述当前小区的用户设备的第一测量上报；启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；在获取所述第一测量上报之后，获取来自所述用户设备的第二测量上报；以及启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程。
根据本公开的另一方面，提供了一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：确定用于所述当前小区中的用户设备的中继配置信息；以及基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，在所述用户设备和所述当前小区之间进行中继通信。
使用根据本公开的无线通信系统中的电子设备和用于在无线通信系统中进行无线通信的方法，可以在执行切换过程之前执行中继过程。这样一来，就可以提高切换的连续性和有效性，保证切换有效进行，并且减轻网络的信令负担。
从在此提供的描述中，进一步的适用性区域将会变得明显。这个概要中的描述和特定例子只是为了示意的目的，而不旨在限制本公开的范围。
附图说明
在此描述的附图只是为了所选实施例的示意的目的而非全部可能的实施，并且不旨在限制本公开的范围。在附图中：
图1(a)是图示高速UE穿越小小区的场景的示意图；
图1(b)是图示UE穿越小区边缘的场景的示意图；
图2是图示根据本公开的实施例的无线通信系统中的电子设备的结构的框图；
图3是图示根据本公开的实施例的切换过程的示意图；
图4图示根据本公开的实施例的切换过程的状态转移图；
图5是图示根据本公开的另一实施例的无线通信系统中的电子设备的结构的框图；
图6是图示UE所处区域的划分的示意图；
图7是图示根据本公开的另一实施例的无线通信系统中的电子设备的结构的框图；
图8是图示根据本公开的实施例的无线通信方法的时序图；
图9是图示根据本公开的实施例的无线通信方法的流程图；
图10是示出适用于本公开的eNB(evolution Node Base Station，演进节点基站)的示意性配置的第一示例的框图；
图11是示出适用于本公开的eNB的示意性配置的第二示例的框图；
图12是示出适用于本公开的智能电话的示意性配置的示例的框图；以及
图13是示出适用于本公开的汽车导航设备的示意性配置的示例的框图。
虽然本公开容易经受各种修改和替换形式，但是其特定实施例已作为例子在附图中示出，并且在此详细描述。然而应当理解的是，在此对特 定实施例的描述并不打算将本公开限制到公开的具体形式，而是相反地，本公开目的是要覆盖落在本公开的精神和范围之内的所有修改、等效和替换。要注意的是，贯穿几个附图，相应的标号指示相应的部件。
具体实施方式
现在参考附图来更加充分地描述本公开的例子。以下描述实质上只是示例性的，而不旨在限制本公开、应用或用途。
提供了示例实施例，以便本公开将会变得详尽，并且将会向本领域技术人员充分地传达其范围。阐述了众多的特定细节如特定部件、装置和方法的例子，以提供对本公开的实施例的详尽理解。对于本领域技术人员而言将会明显的是，不需要使用特定的细节，示例实施例可以用许多不同的形式来实施，它们都不应当被解释为限制本公开的范围。在某些示例实施例中，没有详细地描述众所周知的过程、众所周知的结构和众所周知的技术。
本公开所涉及的UE(User Equipment，用户设备)包括但不限于移动终端、计算机、车载设备等具有无线通信功能的终端。进一步，取决于具体所描述的功能，本公开所涉及的UE还可以是UE本身或其中的部件如芯片。此外，类似地，本公开中所涉及的基站可以例如是eNB(evolution Node Base Station，演进节点基站)或者是eNB中的部件如芯片。
图1(a)示出了高速UE穿越小小区的场景。如图1所示，UE从小区A经过小区C朝向小区B以高速运动。随着小小区部署密度的增加，为了保持服务的连续性，高速UE将会触发频繁的切换。而小小区的覆盖范围有限，在从小小区切换到宏小区时，由于小小区的SINR(Signal to Interference plus Noise Ratio，信号与干扰加噪声比)下降剧烈，经常会发生无线链路失败；而频繁切换将会给网络带来巨大的信令开销，一定程度上将会造成网络拥塞，所以高速UE在小小区网络中的切换是一个很棘手的问题。
另外，蜂窝网络假设小区的覆盖范围是理想的正六边形，因为在服务区面积一定的情况下，蜂窝式的正六边形重叠面积最小，最接近理想的天线覆盖区。因此理想情况下，每个小区都有一个固定的正六边形小区边界，在切换时都有固定的目标小区。然而在实际情况中，小区的边界往往十分模糊，切换时往往存在多个目标小区，尤其是在那些没有主覆盖小区 的地区。同时，在切换过程中，SINR波动可能会很大，在这种情形下，需要配置一个较大的滞回参数，否则将很容易导致乒乓效应的产生。然而滞回参数越大，在切换时对应的服务小区的小区边缘SINR越低，切换失败的概率也越高。因此在实际的网络部署中，需要对这两方面进行取舍和均衡。
例如，UE运动轨迹和小区覆盖范围分布如图1(b)所示，图1(b)示出了UE穿越小区边缘的场景。UE从小区A经过小区B到达小区C。但是从UE穿过小区的方式来看，UE在小区B中的停留时间很短，容易发生短时间停留事件或者乒乓切换事件。但是，如果UE在移动过程中不切换到小区B的话，在UE移动到小区A边缘时，SINR会迅速降低，发生无线链路失败。这就出现了切换失败与乒乓效应的平衡问题。
针对以上问题中的至少一个，提出了根据本公开的技术方案。图2图示了根据本公开的实施例的无线通信系统中的电子设备200的结构。
如图2所示，电子设备200可以包括处理电路210以及触发电路221和222。需要说明的是，电子设备200既可以包括一个处理电路210，也可以包括多个处理电路210。另外，电子设备200还可以包括作为收发机的通信单元230等。
进一步，处理电路210可以包括各种分立的功能单元以执行各种不同的功能和/或操作。需要说明的是，这些功能单元可以是物理实体或逻辑实体，并且不同称谓的单元可能由同一个物理实体实现。
例如，如图2所示，处理电路210可以包括控制单元211。
在根据本公开的实施例的无线通信系统中，可以存在多个小区，所述多个小区可以包括电子设备200所在的当前小区和至少一个相邻小区。
在如图2所示的电子设备200中，触发电路221可以使通信单元230进行第一测量上报，以辅助启动用于使电子设备200经由中继UE与当前小区进行通信的中继过程。
另外，触发电路222可以使通信单元230进行第二测量上报，以辅助启动用于使电子设备200从当前小区切换到相邻小区的切换过程。
这里，控制单元211可以对触发电路221和222进行控制，以使通信单元230在进行第二测量上报之前进行第一测量上报。
使用根据本公开的实施例的电子设备200，可以在从当前小区切换 到相邻小区之前，使电子设备200经由中继UE与当前小区进行通信。这样一来，就可以提高切换的连续性和有效性，保证切换有效进行，并且减轻网络的信令负担。
例如，在如图1(a)所示的场景下，当UE移动到小区A边缘时，可以利用小区A的UE做中继器，触发UE至网络中继的过程。由于小小区C的覆盖范围比较小，所以可以在小小区C的覆盖范围内一直由中继器转接与小区A的通信，然后执行小区A到小区B的切换。由于一直经过中继UE连接，所以可以避免切换失败；又减少了UE切换到小区C的过程，从而减轻了网络的信令负担。
另外，在如图1(b)所示的场景下，当UE移动到小区A的小区边缘时，可以不执行切换到小区B的操作，而是触发UE至网络中继的过程，通过中继UE与基站A进行通信。等到UE移动到小区C的小区边缘时，再切换到小区C。这样既不会发生无线链路失败，又不会出现乒乓效应或短时间停留事件，从而可以在降低中断率的同时节省不必要的信令开销。
在LTE(Long Term Evolution，长期演进)及LTE-Advanced系统中切换为硬切换，在切换过程中会产生一定的服务中断时间。如果出现切换失败事件，UE随之会进行无线链路恢复，执行RRC(Radio Resource Control，无线资源控制)重建过程，这一过程产生的服务中断时间相比成功的切换要长得多。所以在UE的移动过程中，应该尽量避免切换失败事件的发生。而乒乓切换会大大增加切换的总次数，进而增加服务中断时间，也应尽量避免。
为了增强网络的边缘覆盖，提升边缘UE的服务质量，LTE及LTE-Advanced系统引入中继作为低功率节点部署在网络边缘，拉近了与UE之间的距离，提高了链路质量。中继是指基站或UE不直接将信号发送给彼此，而是通过中继节点，经过信号放大或者再生处理进行转发。按照中继器的移动性，可以分为固定、游牧和移动中继器。固定中继器是在网络规划时部署的，在较长的时间范围内不会移动。游牧中继器是适应突发事件而紧急部署的中继器。当突发事件结束后，游牧中继器将会被移走。移动中继器则部署在车辆上，与所在服务的UE一起移动。
传统的中继器要么固定部署，要么随车辆一起移动。而如果用UE承担中继器的角色去辅助切换过程，那么会具有以下优势。第一，中继UE发送功率遵从D2D(Device-to-Device，设备到设备)的标准，功率更 小，并且干扰更小。第二，中继UE可以自由移动，而且数量更多，所以更加拉近了中继UE和UE之间的距离，链路质量更好。所以在本公开的技术方案中，选择用中继过程来辅助切换过程，从而获得了更好的服务连续性。
传统的切换过程基于A3事件。当邻小区的接收功率比服务小区的接收功率加上一个偏置值还大时，触发A3事件。如果在TTT(Time To Trigger，触发时间)时间段内，A3事件一直满足，就会触发测量上报。接下来，切换过程会被启动，断开与源小区的RRC连接，建立与目标小区的RRC连接。
为了更好地理解本公开的技术方案，下面首先对A3事件加以简单描述。
A3事件的进入条件为：
Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off
A3事件的离开条件为:
Mn+Ofn+Ocn+Hys<Ms+Ofs+Ocs+Off
其中，
Mn：邻小区的测量结果，不考虑计算任何偏置。
Ofn：该邻区频率特定的偏置(即offsetFreq，在measObjectEUTRA中被定义为对应于邻区的频率)。
Ocn：为该邻区的小区特定偏置(即cellIndividualOffset，在measObjectEUTRA中被定义为对应于邻区的频率)，同时如果没有为邻区配置，则设置为零。
Ms：为没有计算任何偏置下的服务小区的测量结果。
Ofs：为服务频率上频率特定的偏置(即offsetFreq，在measObjectEUTRA中被定义为对应于服务频率)。
Ocs：为服务小区的小区特定偏置(即cellIndividualOffset，在measObjectEUTRA中被定义为对应于服务频率)，并设置为0，如果没有为服务小区配置的话。
Hys：为该事件的迟滞参数(即hysteres，reportConfigEUTRA内为该事件定义的参数)。
Off：为该事件的偏移参数(即a3-Offset,reportConfigEUTRA内为该事件定义的参数)。
当邻小区的RSRP(Reference Signal Receiving Power，参考信号接收功率)满足A3事件的进入条件时，开始触发TTT计时。如果在TTT时间内都不满足A3事件的离开条件，则触发A3事件的测量上报。
IE(Information Element，信息单元)TimeToTrigger在标准化中定义如下：
Figure PCTCN2016099312-appb-000001
IE TimeToTrigger指定了用于触发时间参数的值范围，所述触发时间参数涉及这样的时间，在所述时间期间，用于事件的指定标准需要得到满足，以便触发测量报告。值ms0对应于0ms，ms40对应于40ms，以此类推。
IE Hysteresis在标准化中定义如下：
--ASN1START
Hysteresis::＝                INTEGER(0..30)
--ASN1STOP
IE Hysteresis是事件触发报告条件的进入条件和离开条件之内使用的参数。实际值为IE值*0.5 dB。
IE ReportConfigEUTRA在标准化中定义如下：
Figure PCTCN2016099312-appb-000002
Figure PCTCN2016099312-appb-000003
其中，a3-Offset是将要在A3事件的EUTRA测量报告触发条件中使用的偏移值。实际值为IE值*0.5dB。
根据本公开的实施例，上面提到的第二测量上报可以是A3事件的测量上报。当确定A3事件的进入条件被满足时，触发电路222开始计时。当确定A3事件的离开条件被满足时，触发电路222被清零。当触发电路222的计时结果等于触发时间TTT_A3时，通信单元230可以进行第二测量上报以辅助启动切换过程。
另一方面，根据本公开的实施例，上面提到的第一测量上报可以是中继事件的测量上报。处理电路210(例如控制单元211)可以对中继事件进行配置。当确定中继事件的进入条件被满足时，触发电路221开始计时。当确定中继事件的离开条件被满足时，触发电路221被清零。当触发电路221的计时结果等于触发时间TTT_R时，通信单元230可以进行第一测量上报以辅助启动中继过程。
这里，处理电路210(例如控制单元211)可以对中继事件的进入条件进行配置，使得触发电路221先于触发电路222开始计时。进一步，处理电路210(例如控制单元211)还可以对中继事件的离开条件进行配置，使得触发电路221晚于触发电路222被清零。
具体地，例如可以定义一个新的事件“R事件”作为中继事件。R事件的进入条件为：
Mn+Ofn+Ocn-Hys_in>Mp+Ofp+Ocp+Off
R事件的离开条件为:
Mn+Ofn+Ocn+Hys_out<Mp+Ofp+Ocp+Off
其中，
Mp和Mn分别表示本小区和邻小区的测量结果；
Ofp和Ofn分别表示本小区和邻小区的专有频率补偿；
Ocp和Ocn分别表示本小区和邻小区的小区专有补偿；
off：与A3事件的offset取相同值，表示事件的补偿参数；
Hys_in：表示R事件进入条件的迟滞参数；
Hys_out：表示R事件离开条件的迟滞参数。
UE周期性地对邻小区进行测量。当邻小区的RSRP比服务小区的RSRP加上偏置还大时，进入R事件。如果在一个TTT_R时间不满足R事件的离开条件，则触发R事件的测量上报(上报内容和A3事件上报内容相同，包括服务小区和邻小区的RSRP、RSRQ(Reference Signal Receiving Quality，参考信号接收质量)、小区ID等)，由源基站决定是否进行UE至网络中继的通信过程。
根据本公开的实施例，基于通信单元230从当前小区和相邻小区接收到的RSRP，处理电路210(例如控制单元211)对触发电路221和222进行控制。
处理电路210(例如控制单元211)例如可以对Hys_in和Hys_out进行配置，使得R事件的进入条件先于A3事件的进入条件被满足，并且使得R事件的离开条件晚于A3事件的离开条件被满足。换言之，处理电路210(例如控制单元211)可以对Hys_in和Hys_out进行配置，使得触发电路221先于触发电路222开始计时，并且使得触发电路221晚于触发电路222被清零。
根据本公开的优选实施例，处理电路210(例如控制单元211)可以对中继事件(例如R事件)进行配置，利用缩放参数对影响A3事件的迟滞效应的有关参数(例如Hys)进行缩放，以设置中继事件的迟滞效应的有关参数(例如Hys_in和Hys_out)，从而使通信单元230在进行第二测量上报之前进行第一测量上报。这里，处理电路210(例如控制单元211)可以基于来自基站的指示信息确定缩放参数。
具体地，处理电路210(例如控制单元211)可以对中继事件(例如R事件)进行配置，使得中继事件的进入条件中的迟滞参数(亦即Hys_in)为A3事件的进入条件中的迟滞参数(亦即Hys)的x倍，并且中继事件的离开条件中的迟滞参数(亦即Hys_out)为A3事件的离开条件中的迟滞参数(亦即Hys)的1+x倍，其中x为范围在0到1之间的实数。
换言之，处理电路210(例如控制单元211)可以对R事件进行配置以满足以下公式：
Hys_in＝x*Hys_A3
Hys_out＝(1+x)*Hys_A3
其中，Hys_A3指示A3事件的迟滞参数。
进一步，处理电路210(例如控制单元211)还可以对中继事件(例如R事件)进行配置，使得TTT_R＝x*TTT_A3，其中x为范围在0到1之间的实数。
这里，Hys_in、Hys_out和TTT_R均表示R事件的迟滞效应，它们可以使用相同的缩放参数x。
从上面的描述可以看出，随着服务小区的RSRP逐渐减小，邻小区的RSRP逐渐增大，R事件和A3事件的进入离开条件满足的时间顺序如下：
R事件进入条件满足、A3事件进入条件满足、A3事件离开条件满足、R事件离开条件满足。
可见，R事件是先进入后离开，而A3事件则是后进入先离开。
图3示出了根据本公开的实施例的切换过程。如图3所示，UE1正在从A向B移动。当UE1移动到点2时，满足A3事件的进入条件；而当UE1移动到点3时，经过TTT时间，发起切换过程。在本公开的技术方案中，当UE1移动到点1时(表示UE1移动到小区1的边缘区域)，触发UE至网络中继的过程，例如通过UE2与基站1进行通信。再当UE1到达点2时满足A3事件的进入条件，经过一个可配置的TTT时间，触发小区1到小区2的切换，以此来降低中断概率，提高服务的连续性。
根据本公开的优选实施例，当确定使中继事件(例如R事件)的进入条件被满足的相邻小区与使A3事件的进入条件被满足的相邻小区相同时，处理电路210(例如控制单元211)可以将TTT_A3调整为1-x倍， 其中x为范围在0到1之间的实数。
具体地，如果在满足A3事件进入条件之前，R事件已经被触发，则根据满足R事件触发条件与A3事件进入条件的邻小区是否相同，可以动态配置Enhanced TTT_A3，来减少切换失败概率和乒乓切换概率。
当满足R事件触发条件与A3事件进入条件的邻小区相同时，可以配置Enhanced TTT_A3＝(1-x)*TTT_A3，以减少切换失败概率。
而当满足R事件触发条件与A3事件进入条件的邻小区不同时，可以配置Enhanced TTT_A3＝TTT_A3，以减少乒乓切换概率。
如果在满足A3事件进入条件时，R事件还未被触发测量上报，那么这可能是由于UE处于高速运动，源小区的RSRP下降很快，或者是由于TTT_R设置得比较长。无论属于哪种情况，由于无法确定UE是否真的朝着目标小区在运动，所以可以配置Enhanced TTT_A3＝TTT_A3。
此处TTT_A3表示已经由speedstatescalefactor调整过后的TTT_A3。
根据本公开的实施例，基于通信单元230接收到的指示中继UE的信息，处理电路210(例如控制单元211)可以进行控制，以使电子设备200通过基于邻近的服务连接到中继UE，以在从当前服务小区切换到相邻小区之前经由中继UE与当前小区进行通信。
另一方面，如果UE终端在运动过程中，UE至网络中继通信已被触发，但是由于一些原因重新折回到服务小区，则需要从与中继UE的通信切换回与基站直接通信。
在这种情况下，根据本公开的实施例，如图2所示的电子设备200可以进一步包括第三触发电路(未示出)，用于使通信单元230进行第三测量上报，以辅助启动用于使电子设备200回归与当前小区直接进行通信的“去中继”过程。
这里，第三测量上报可以是去中继事件的测量上报。处理电路210(例如控制单元211)可以对去中继事件进行配置，使得当确定去中继事件的进入条件被满足时，第三触发电路开始计时；当确定去中继事件的离开条件被满足时，第三触发电路被清零；并且当第三触发电路的计时结果等于触发时间TTT_～R时，使通信单元230进行第三测量上报以辅助启动去中继过程。
处理电路210(例如控制单元211)可以对去中继事件的进入条件进行配置，使得去中继事件的进入条件与中继事件的离开条件相同。
进一步，处理电路210(例如控制单元211)还可以对去中继事件的离开条件进行配置，使得去中继事件的离开条件与中继事件的进入条件相同。
进而，处理电路210(例如控制单元211)还可以对去中继事件进行配置，使得TTT_～R＝TTT_R。
具体地，例如可以定义一个新的事件“～R事件”作为去中继事件。～R事件的进入条件为：
Mn+Ofn+Ocn+Hys_out<Mp+Ofp+Ocp+Off
～R事件的离开条件为:
Mn+Ofn+Ocn-Hys_in>Mp+Ofp+Ocp+Off
其中，各个符号的含义与R事件中的符号的含义相同。另外，Hys_out和Hys_in的值均与R事件中的取值相同，并且TTT_～R＝TTT_R。
如从上面可以看到的那样，R事件和～R事件的进入和离开条件正好相反。亦即，如果服务小区的接收功率比邻小区的接收功率加上一个迟滞值还大时，则进入～R事件。如果在～R事件的触发时间TTT_～R内，～R事件的离开条件均未满足时，则触发～R事件的触发上报，由基站决定是否从通过中继的通信切换到与基站直接通信。
图4示出了根据本公开的实施例的切换过程的状态转移图。从图4中可以清楚地看出切换过程的不同状态的转移。
需要说明的是，根据本公开的实施例，如上所述的无线通信系统可以是LTE-A(Long Term Evolution-Advanced，高级长期演进)蜂窝通信系统，并且电子设备200可以是无线通信系统中的UE。
接下来结合图5来描述根据本公开的另一实施例的无线通信系统中的电子设备500。需要说明的是，在没有特别指明的情况下，在下文中使用的各种术语如第一测量上报、第二测量上报、中继事件等，可以与上文中提到的相应术语的含义的相同。
图5图示了根据本公开的另一实施例的无线通信系统中的电子设备500的结构。同样地，在该无线通信系统中存在多个小区，所述多个小区包括电子设备500所在的当前小区和至少一个相邻小区。
如图5所示，电子设备500可以包括处理电路510。需要说明的是，电子设备500既可以包括一个处理电路510，也可以包括多个处理电路510。另外，电子设备500还可以包括诸如收发机之类的通信单元520等。
如上面提到的那样，同样地，处理电路510也可以包括各种分立的功能单元以执行各种不同的功能和/或操作。这些功能单元可以是物理实体或逻辑实体，并且不同称谓的单元可能由同一个物理实体实现。
例如，如图5所示，处理电路510可以包括获取单元511以及启动单元512和513。
获取单元511可以获取来自当前小区的UE的第一测量上报。
基于获取单元511获取的第一测量上报，启动单元512可以启动用于使UE经由中继UE与当前小区进行通信的中继过程。
接下来，在获取第一测量上报之后，获取单元511还可以获取来自UE的第二测量上报。
基于获取单元511获取的第二测量上报，启动单元513可以启动用于使UE从当前小区切换到相邻小区的切换过程。
优选地，处理电路510(例如获取单元511)还可以获取当前小区中的每个UE的区域信息。基于区域信息，处理电路510(例如确定单元，其未被示出)可以确定至少一个候选中继UE。在这之后，处理电路510(例如选择单元，其未被示出)可以选择候选中继UE中的一个作为中继UE。
更优选地，处理电路510(例如获取单元511)还可以获取候选中继UE中的每一个的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个。基于获取的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个，处理电路510(例如确定单元，其未被示出)可以确定候选中继UE中的每一个的中继能力优先级。在这之后，处理电路510(例如确定单元，其未被示出)可以基于中继能力优先级来确定中继UE。
例如，通过监测服务小区的SINR(可替代为RSSI(Received Signal Strength Indication，接收信号强度指示))，可以将服务小区划分为中心区域、边缘区域和中间区域，如图6所示。
UE以一定的周期对服务小区的SINR进行监测，并与预先设定的阈值SINR_LOW和SINR_MEDIUM进行比较(SINR为经过L1和L3滤 波之后的结果)：
如果SINR<SINR_LOW，那么判定该UE处于图6所示的区域3；
如果SINR_LOW<SINR<SINR<SINR_MEDIUM，那么判定该UE处于图6中的区域2；并且
如果SINR>SINR_MEDIUM，那么判定该UE处于图6中的区域1。
需要说明的是，此处以SINR的值而不是RSRP的值作为区域划分依据，这是因为如果UE接收到的服务小区和邻小区的RSRP值都很大，那么该UE并未处于小区中心区域，而是近似处于距离服务小区和邻小区连线的中垂线上，而此时该UE的SINR的值却不大。由此可见，以SINR为依据来进行区域划分更合理。
通过监测服务小区RSRP的变化率，可以将UE划分为高速UE、中速UE和低速UE(比传统统计小区重选次数的方式来划分高中低速UE的方法能够更准确确定当前时刻下UE的状态，从而有助于选择合适的临时性的切换辅助中继UE)。
为了节省不必要的信令开销，担任中继角色的UE的状态需要相对比较稳定，即其与基站之间有比较稳定的链路质量，处于中低速的移动状态。因此，为了确定中继UE的范围，可以对服务小区RSRP的变化量进行监测。将一定的时间窗内服务小区的RSRP变化量用ΔRSRP_S表示，滑动窗的滑动周期与层三滤波器的滤波周期一致，一般每200ms进行一次ΔRSRP_S的更新。将ΔRSRP_S与预先设定的阈值ΔRSRP_LOW与ΔRSRP_MEDIUM进行比较，以此确定UE的运动速度：
如果ΔRSRP_S<ΔRSRP_LOW，则表示该UE处于低速运动状态；
如果ΔRSRP_LOW<ΔRSRP_S<ΔRSRP_MEDIUM，则表示该UE处于中速运动状态；并且
如果ΔRSRP_S>ΔRSRP_MEDIUM，则表示该UE处于高速运动状态。
其中，ΔRSRP_LOW和ΔRSRP_MEDIUM可以根据UE服务小区的类型不同而动态地配置，并且可以由基站通过测量配置信息下发给UE。
另外，通过监测服务小区和邻小区RSRP的变化率，可以将UE划分为不同的情形，确定哪些UE即将执行切换过程，哪些UE即将从覆盖范围内移动到覆盖范围外，哪些UE属于公共安全状况。
UE在移动过程中，或者移动速度很小，驻留在服务小区；或者由小区A向小区B移动，将要执行切换过程；或者由覆盖范围内向覆盖范围外移动；或者由于小小区关闭或者自然灾害造成设备损坏导致瞬间处于覆盖范围外。UE处于不同的情形，可以承担的任务不同，需要执行的操作也不尽相同。因此，根据本公开的实施例，可以在UE测量上报信息中增加一个情形指示器，用以指示UE处于的状态，并且上报给基站，以便于基站进行控制。
情形指示器可以用两位二进制数字表示：
‘00’表示UE驻留在服务小区；
‘01’表示UE即将执行切换过程；
‘10’表示UE正在由覆盖范围内向覆盖范围外移动；以及
‘11’表示UE瞬间无服务。
UE的RSRP与UE的情形的映射关系如下：(记ΔRSRP＝|ΔRSRP_S|+|ΔRSRP_N|，其中，ΔRSRP_S表示服务小区的RSRP变化率，并且ΔRSRP_N表示相邻小区的RSRP变化率)
如果ΔRSRP<Δ_th1，则表示UE移动速度很小，基本驻留在服务小区，置情形指示器为‘00’；
如果ΔRSRP>Δ_th2，且有RSRP_N被观察到，表示UE将要执行切换过程，置情形指示器为‘01’，其中，RSRP_N表示相邻小区的接收功率；
如果ΔRSRP>Δ_th2，且无RSRP_N被观察到，表示UE正在由覆盖范围内向覆盖范围外移动，置情形指示器为‘10’；以及
如果RSRP_S瞬间测量不到，表示UE由于一些特殊原因导致瞬间无服务，置情形指示器为‘11’。
顺便提及，根据本公开的实施例，如图2所示的电子设备200中的处理电路210(例如控制单元211)可以进一步对中继事件的进入条件进行配置，使得只有当确定电子设备200即将进入切换过程时(亦即情形指示器为‘01’时)，才满足中继事件的进入条件。
在本公开的技术方案中，可以选择由UE去监测RSRP以及SINR来确定UE所属区域以及其移动状态，与基站定位等方案相比具有以下优势。
首先，目前室内定位不支持GPS(Global Positioning System，全球定位系统)，只能用传统的OTDOA(Observed Time Difference Of Arrival，观测到达时间差)等定位方法，不仅流程复杂，频繁的定位会给网络造成信令负担，而且定位精度在十米到几十米量级，几乎与低功率节点的覆盖范围可比，会造成较大误差。
其次，基站定位只支持经度和纬度两个维度，无法定位到高度。
最后，RSRP和SINR是UE在传统的LTE过程即会测量和滤波的，所以如果由RSRP和SINR来确定UE状态，只是多进行了比较的过程，不会耗费UE过多电量，也不会给网络造成额外的信令负担。
另外，可以在UE终端侧维护一个状态指示器，标识该UE是否可以作为中继UE，通过周期性上报或者事件触发上报给eNodeB。
当状态指示器为‘1’时，表示该UE可以作为中继UE；而当状态指示器为‘0’时，表示该UE不可以作为中继UE。
考虑到处于小区中心的UE与处于小区边缘甚至于覆盖范围外的UE距离太远，链路质量较差，所以处于如图6所示的区域1的UE不具有中继UE的功能。而当UE终端处于高速运动、负载状况高或者电量状况低时都不适合担任中继UE。因此UE终端根据服务小区和相邻小区的RSRP、SINR等相关参数，依据上面提到的规则判断自己所处的移动状态、所属区域、负载状况以及电量状况来确定自身是否具有担任中继UE的能力。
当且仅当UE终端处于如图6所示的区域2或者区域3，正在做中低速运动，负载状况不高，并且电量状况处于中高状态时，UE终端认定自身可以担任中继UE，配置状态指示器＝‘1’；否则，配置状态指示器＝‘0’。
当UE终端认定自身可以担任中继UE时，有时需要像传统的低功率节点那样担任长期或者永久类型的中继器，有时只需要在其他UE执行切换过程时起到暂时的辅助作用。因此可以在UE终端维护一个中继类型指示器，标识该UE可以担任何种类型的中继器。当状态指示器＝‘1’时，周期性或者事件触发性地上报给eNodeB。
当状态指示器＝‘1’时，UE终端可以根据自身意愿配置中继类型指示器的值如下：
中继类型指示器＝‘1’:表示该UE可以作为永久性中继UE；以 及
中继类型指示器＝‘0’:表示该UE可以作为暂时性中继UE。
具有中继UE能力的UE终端(即状态指示器＝‘1’的UE终端)可以将自身的相关信息(包括移动状态信息、电量信息、负载信息以及服务质量信息)周期性地或者事件触发性地上报给eNodeB。eNodeB根据UE上报的信息，形成不同的中继UE池，并计算各种类型中继UE的优先级。
首先，基站例如可以将处于不同区域的中继UE划分为不同的中继UE池，当UE将要执行不同操作时，选择不同的中继UE池：
当情形指示器＝‘01’时，即UE即将执行切换过程时，表明UE处于服务小区边缘区域区域3，此时可以选择区域2中的中继UE进行通信；并且
当情形指示器＝‘10’时，即UE即将从覆盖范围内移动到覆盖范围外时，远程UE可以选择区域2和区域3中的中继UE进行通信。
然后，根据UE上报的相关信息，以及网关S-GW(Serving GateWay，服务网关)反馈的该UE正在进行的业务的QoS(Quality of Service，服务质量)状况，基站可以合理配置具有中继能力的UE的优先级，具体配置方法例如可以如下：
Relaypriority＝a*mobility state+b*battery level+c*laod level+d*QoS
其中，a+b+c+d＝1，a、b、c和d分别表示移动状态、电量情况、负载情况和QoS对于中继UE优先级的贡献值，具体参数由实际情况测量结果取得。
另外，mobility state、battery level、load level和QoS可以分别为归一化之后的变量。
以QoS为例。在接入网络，eNodeB负责确保无线接口承载所必须的QoS。每个承载都有一个相关联的QoS标识QCI(QoS Class Identifier，QoS等级标识符)。QCI越小，表示QoS对服务连续性的要求越高，而其作为中继UE的优先级越低。因此QoS的归一化计算公式可如下所示：
Figure PCTCN2016099312-appb-000004
其他变量的归一化计算公式与此类似。
所有UE终端周期性地或者事件触发性地上报自身所处的情形指示器以及状态指示器，用来标识UE即将执行什么操作。上报周期可以由基站预先配置，而用于触发的新事件可以是当情形指示器或者状态指示器发生变化时。
具有中继能力的UE终端(即状态指示器＝‘1’的UE)周期性地或者事件触发性地上报自身的相关信息，包括中继类型指示器、移动状态、属性区域、负载水平以及电池电量，用于供基站形成不同的中继UE池以及中继优先级。上报周期可以由基站预先配置，而用于触发的新事件可以是当上报内容的任一发生变化时。
如果基站同意UE终端的UE至网络中继的通信请求，则有如下两种中继选择的方式。
在第一种方式下，由基站根据中继UE所处的中继UE池以及中继优先级，为UE选择合适的中继UE，并将UE至网络中继的通信相关的配置信息下发给选择的中继UE以及UE终端。这样可以节省中继发现的过程，时延较小，比较适合切换过渡过程的时延敏感性较高的场合，但是可能选到的中继UE链路质量一般。
在第二种方式下，由基站将符合条件的中继UE相关信息下发给UE终端。UE终端对相应的PC5链路质量进行测量，选择合适的中继UE进行通信。这样可以选到链路质量较好的中继器，但是会有额外的信令开销，时延也比较大。
根据本公开的优选实施例，上面提到的第一测量上报可以是中继事件的测量上报。在这种情况下，如图5所示的电子设备500中的处理电路510(例如设置单元，其未被示出)可以基于当前小区的覆盖范围和作为目标小区的相邻小区的覆盖范围设置缩放参数。进一步，处理电路510(例如生成单元，其未被示出)可以生成包含缩放参数的关于中继事件的测量配置信息以通知UE。
这里的缩放参数例如可以与上面提到的表示R事件的迟滞效应的参数Hys_in、Hys_out和TTT_R相关。
如上面提到的那样，Hys_in、Hys_out和TTT_R可以使用相同的缩放参数x。这里，例如可以规定x∈[0，x_th]，x_th表示x可取的最大值，其可以根据R事件中源小区和目标小区的覆盖半径来动态配置。
具体地，例如可以令R_s表示源小区的覆盖半径，R_t表示目标小区的覆盖半径，则
Figure PCTCN2016099312-appb-000005
由于在实际执行过程中获取小区的覆盖半径比较复杂，所以可以按如下简化方法配置。
首先，在基站向UE终端下发的邻区列表信息中，增加一个相邻小区专用的切换类型(2比特)，用来指示本次切换的切换类型。可以将小区类型分为宏小区和低功率节点。
当源小区和目标小区均为宏小区或者均为低功率节点时，配置切换类型＝‘00’；
当源小区为宏小区，目标小区为低功率节点时，配置切换类型＝‘01’；并且
当源小区为低功率节点，目标小区为宏小区时，配置切换类型＝‘10’。
收到基站下发的邻区列表相关信息之后，UE终端可以动态配置x取值范围的大小：
当切换类型＝‘00’时，配置x_th＝0.5；
当切换类型＝‘01’时，配置x_th＝x_th1；并且
当切换类型＝‘10’时，配置x_th＝x_th2。
其中，x_th1和x_th2的值可以由实际网络中宏小区和低功率节点覆盖半径比值的经验值决定，并且满足x_th1+x_th2＝1。
根据本公开的优选实施例，如图5所示的电子设备500中的处理电路510(例如确定单元，其未被示出)可以确定是否存在可用中继UE。进一步，响应于确定不存在可用中继UE，处理电路510可以不启动中继过程。
另外，根据本公开的优选实施例，在获取第一测量上报之后，处理电路510(例如获取单元511)还可以获取来自UE的第三测量上报。基于第三测量上报，处理电路510(例如第三启动单元，其未被示出)可以启动用于使UE回归与当前小区直接进行通信的去中继过程。
需要说明的是，根据本公开的实施例，如上所述的无线通信系统可 以是LTE-A蜂窝通信系统，电子设备500可以是基站，并且通信单元520例如可以接收当前小区的UE传送的信息。
上面描述了根据本公开的实施例的无线通信系统中的基站。总体而言，源基站在收到UE终端触发的R事件的测量上报之后，可以根据是否有合适的中继UE以及UE的状态决定是否进行UE至网络中继通信。
首先，基站判断有无符合条件的中继UE。如果基站判断没有符合条件的中继UE，则基站拒绝UE终端的请求，维持原来的通信链路。另一方面，如果基站判断有符合条件的中继UE，则基站开始判断UE的移动状态。
如果UE处于高速运动，则基站同意UE至网络中继的通信请求。另一方面，如果UE处于中低速运动，则基站判断UE终端的切换类型。
如果中低速UE的源小区为低功率节点或者基站判定穿越目标小区的方式为边缘经过，则基站同意UE至网络中继的通信请求，否则基站将拒绝UE终端的UE至网络中继的通信请求。
接下来结合图7来描述根据本公开的另一实施例的无线通信系统中的电子设备700。图7图示了根据本公开的另一实施例的无线通信系统中的电子设备700的结构。同样地，在该无线通信系统中存在多个小区，所述多个小区包括电子设备700所在的当前小区和至少一个相邻小区。
如图7所示，电子设备700可以包括处理电路710。需要说明的是，电子设备700既可以包括一个处理电路710，也可以包括多个处理电路710。另外，电子设备700还可以包括诸如收发机之类的通信单元720等。
如上面提到的那样，同样地，处理电路710也可以包括各种分立的功能单元以执行各种不同的功能和/或操作。这些功能单元可以是物理实体或逻辑实体，并且不同称谓的单元可能由同一个物理实体实现。
例如，如图7所示，处理电路710可以包括确定单元711和控制单元712。
确定单元711可以确定用于当前小区中的UE的中继配置信息。
基于确定单元711确定的中继配置信息，在UE从当前小区切换到相邻小区之前，控制单元712可以使通信单元720在UE和当前小区之间进行中继通信。
优选地，处理电路710(例如确定单元)可以确定来自当前小区的 SINR。进一步，基于SINR，处理电路710(例如确定单元)可以确定电子设备700所处的区域为当前小区的中心区域、中间区域还是边缘区域。进而，处理电路710(例如控制单元)可以使通信单元720将关于电子设备700所处区域的区域信息发送到当前小区的基站，以便基站确定候选中继UE。
更优选地，处理电路710(例如控制单元)可以使通信单元720周期性地将区域信息发送到基站。或者，当区域信息发生变化时，处理电路710(例如控制单元)可以使通信单元720将区域信息发送到基站。
优选地，处理电路710(例如确定单元)可以确定电子设备700的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个。进一步，处理电路710(例如控制单元)可以使通信单元720将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到当前小区的基站，以便基站确定电子设备700的中继能力优先级。
更优选地，基于通信单元720接收到的来自当前小区的RSRP的变化率，处理电路710(例如确定单元)可以确定关于电子设备700的移动速度的移动状态信息。
更优选地，处理电路710(例如控制单元)可以使通信单元720周期性地将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到基站。或者，当确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发生变化时，处理电路710(例如控制单元)可以使通信单元720将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到基站。
需要说明的是，根据本公开的实施例，如上所述的无线通信系统可以是LTE-A蜂窝通信系统，并且电子设备700可以是无线通信系统中的中继UE。
接下来结合图8来描述根据本公开的实施例的切换信令流程。图8示出了根据本公开的实施例的无线通信方法的时序图。
如图8所示，首先，源eNB向UE发送关于测量控制的信令，并且向UE发送关于UL分配的信令。
接下来，当条件满足时，UE向源eNB发送R事件的测量报告。
然后，源eNB进行关于UE至网络中继的决策。当决定进行UE至网络中继时，源eNB分别向UE和中继UE发送UE至网络中继的配置。
在这之后，UE和中继UE进行同步并且建立PC5连接。
接下来，当条件满足时，UE向源eNB发送A3事件的测量报告。
然后，源eNB进行切换决策。当决定进行切换时，源eNB向目标eNB发送切换请求。
当接收到切换请求时，目标eNB进行许可控制。在允许切换的情况下，目标eNB向源eNB发送切换请求确认。
接下来，源eNB向目标eNB进行SN状态传递和数据转发。
在这之后，UE和目标eNB进行同步并且进行RRC连接重配。
在这之后，源eNB进行UE上下文释放和资源释放，中继UE进行PC5连接释放，并且切换过程结束。
综上所述，根据本公开的实施例，可以提供一种包括当前小区和至少一个相邻小区的无线通信系统，该无线通信系统包括：UE，所述UE包括：第一收发机；第一触发电路，被配置为使所述收发机进行第一测量上报，以辅助启动用于使所述UE经由中继UE与所述当前小区进行通信的中继过程；第二触发电路，被配置为使所述收发机进行第二测量上报，以辅助启动用于使所述UE从所述当前小区切换到所述相邻小区的切换过程；以及一个或多个第一处理电路，被配置为对所述第一触发电路和所述第二触发电路进行控制，以使所述收发机在进行所述第二测量上报之前进行所述第一测量上报；基站，所述基站包括：一个或多个第二处理电路，所述第二处理电路被配置为执行以下操作：获取所述第一测量上报；启动所述中继过程；在获取所述第一测量上报之后，获取所述第二测量上报；以及启动所述切换过程；以及中继UE，所述中继UE包括：第二收发机；以及一个或多个第三处理电路，所述第三处理电路被配置为执行以下操作：确定用于所述UE的中继配置信息；以及基于所述中继配置信息，在所述UE从所述当前小区切换到所述相邻小区之前，使所述收发机在所述UE和所述当前小区之间进行中继通信。
接下来参考图9来描述根据本公开的实施例的用于在无线通信系统中进行无线通信的方法。图9示出了根据本公开的实施例的无线通信方法的流程图。同样地，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区。
如图9所示，首先，在步骤S910中进行第一测量上报，以辅助启动用于使UE经由中继UE与当前小区进行通信的中继过程。
然后，在步骤S920中，在进行第一测量上报之后进行第二测量上报，以辅助启动用于使UE从当前小区切换到相邻小区的切换过程。
优选地，第二测量上报可以为A3事件的测量上报。具体地，当确定A3事件的进入条件被满足时，可以开始计时；当确定A3事件的离开条件被满足时清零；并且当计时结果等于触发时间TTT_A3时，可以进行第二测量上报以辅助启动切换过程。
优选地，第一测量上报可以为中继事件的测量上报。具体地，当确定中继事件的进入条件被满足时，可以开始计时；当确定中继事件的离开条件被满足时清零；并且当计时结果等于触发时间TTT_R时，可以进行所述第一测量上报以辅助启动中继过程。这里，中继事件的计时可以先于A3事件的计时，并且中继事件的清零可以晚于A3事件的清零。
优选地，只有当确定UE即将进入切换过程时，才满足中继事件的进入条件。
优选地，可以基于从当前小区和相邻小区接收到的RSRP来进行控制。
优选地，可以利用缩放参数对影响A3事件的迟滞效应的有关参数进行缩放，以设置中继事件的迟滞效应的有关参数，从而在进行第二测量上报之前进行第一测量上报。这里，可以基于来自基站的指示信息确定缩放参数。
优选地，可以配置使得中继事件的进入条件中的迟滞参数为A3事件的进入条件中的迟滞参数的x倍，并且中继事件的离开条件中的迟滞参数为A3事件的离开条件中的迟滞参数的1+x倍，其中x为范围在0到1之间的实数。
优选地，可以配置使得TTT_R＝x*TTT_A3，其中x为范围在0到1之间的实数。
优选地，当确定使中继事件的进入条件被满足的相邻小区与使A3事件的进入条件被满足的相邻小区相同时，可以将TTT_A3调整为1-x倍，其中x为范围在0到1之间的实数。
优选地，基于接收到的指示中继UE的信息，可以进行控制以使UE通过基于邻近的服务连接到中继UE，以在从当前服务小区切换到相邻小区之前经由中继UE与当前小区进行通信。
优选地，该方法可以进一步包括：进行第三测量上报，以辅助启动用于使UE回归与当前小区直接进行通信的去中继过程。这里，第三测量上报可以为去中继事件的测量上报。具体地，当确定去中继事件的进入条件被满足时，可以开始计时；当确定去中继事件的离开条件被满足时清零；并且当计时结果等于触发时间TTT_～R时，可以进行第三测量上报以辅助启动去中继过程。这里，去中继事件的进入条件可以与中继事件的离开条件相同，去中继事件的离开条件可以与中继事件的进入条件相同，并且可以配置使得TTT_～R＝TTT_R。
另一方面，根据本公开的另一实施例的用于在无线通信系统中进行无线通信的方法可以包括：获取来自当前小区的UE的第一测量上报；启动用于使所述UE经由中继UE与所述当前小区进行通信的中继过程；在获取所述第一测量上报之后，获取来自所述UE的第二测量上报；以及启动用于使所述UE从所述当前小区切换到所述相邻小区的切换过程。
优选地，该方法可以进一步包括：获取当前小区中的每个UE的区域信息；基于区域信息确定至少一个候选中继UE；以及选择候选中继UE中的一个作为中继UE。
优选地，该方法可以进一步包括：获取候选中继UE中的每一个的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个；基于获取的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个，确定候选中继UE中的每一个的中继能力优先级；以及基于中继能力优先级来确定中继UE。
优选地，第一测量上报可以为中继事件的测量上报，并且该方法可以进一步包括：基于当前小区的覆盖范围和作为目标小区的相邻小区的覆盖范围设置缩放参数；以及生成包含缩放参数的关于中继事件的测量配置信息以通知UE。
优选地，该方法可以进一步包括：确定是否存在可用中继UE；以及响应于确定不存在可用中继UE，不启动中继过程。
优选地，该方法可以进一步包括：在获取第一测量上报之后，获取来自UE的第三测量上报；以及启动用于使UE回归与当前小区直接进行通信的去中继过程。
另一方面，根据本公开的另一实施例的用于在无线通信系统中进行无线通信的方法可以包括：确定用于当前小区中的UE的中继配置信息； 以及基于所述中继配置信息，在所述UE从所述当前小区切换到相邻小区之前，在所述UE和所述当前小区之间进行中继通信。
优选地，该方法可以进一步包括：确定来自当前小区的SINR；基于SINR确定当前所处的区域为当前小区的中心区域、中间区域还是边缘区域；以及将关于当前所处区域的区域信息发送到当前小区的基站，以便基站确定候选中继UE。
优选地，可以周期性地将区域信息发送到基站，或者可以当区域信息发生变化时将区域信息发送到基站。
优选地，该方法可以进一步包括：确定移动状态信息、电量信息、负载信息和服务质量信息中的至少一个；以及将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到当前小区的基站，以便基站确定中继能力优先级。
优选地，基于接收到的来自当前小区的RSRP的变化率，可以确定关于移动速度的移动状态信息。
优选地，可以周期性地将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到基站，或者可以当确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发生变化时将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到基站。
根据本公开的实施例的用于在无线通信系统中进行无线通信的方法的上述各个步骤的各种具体实施方式前面已经作过详细描述，在此不再重复说明。
本公开的技术能够应用于各种产品。例如，本公开中提到的基站可以被实现为任何类型的演进型节点B(eNB)，诸如宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。代替地，基站可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。基站可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，下面将描述的各种类型的终端均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
例如，本公开中提到的UE可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗 型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。UE还可以被实现为执行机器对机器(M2M)通信的终端(也称为机器类型通信(MTC)终端)。此外，UE可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个晶片的集成电路模块)。
图10是示出可以应用本公开的技术的eNB的示意性配置的第一示例的框图。eNB 1000包括一个或多个天线1010以及基站设备1020。基站设备1020和每个天线1010可以经由RF线缆彼此连接。
天线1010中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备1020发送和接收无线信号。如图10所示，eNB 1000可以包括多个天线1010。例如，多个天线1010可以与eNB 1000使用的多个频带兼容。虽然图10示出其中eNB 1000包括多个天线1010的示例，但是eNB 1000也可以包括单个天线1010。
基站设备1020包括控制器1021、存储器1022、网络接口1023以及无线通信接口1025。
控制器1021可以为例如CPU或DSP，并且操作基站设备1020的较高层的各种功能。例如，控制器1021根据由无线通信接口1025处理的信号中的数据来生成数据分组，并经由网络接口1023来传递所生成的分组。控制器1021可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器1021可以具有执行如下控制的逻辑功能：该控制诸如为无线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的eNB或核心网节点来执行。存储器1022包括RAM和ROM，并且存储由控制器1021执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口1023为用于将基站设备1020连接至核心网1024的通信接口。控制器1021可以经由网络接口1023而与核心网节点或另外的eNB进行通信。在此情况下，eNB 1000与核心网节点或其他eNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口1023还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口1023为无线通信接口，则与由无线通信接口1025使用的频带相比，网络接口1023可以使用较高频带用于无线通信。
无线通信接口1025支持任何蜂窝通信方案(诸如长期演进(LTE) 和LTE-先进)，并且经由天线1010来提供到位于eNB 1000的小区中的终端的无线连接。无线通信接口1025通常可以包括例如基带(BB)处理器1026和RF电路1027。BB处理器1026可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器1021，BB处理器1026可以具有上述逻辑功能的一部分或全部。BB处理器1026可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器1026的功能改变。该模块可以为插入到基站设备1020的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路1027可以包括例如混频器、滤波器和放大器，并且经由天线1010来传送和接收无线信号。
如图10所示，无线通信接口1025可以包括多个BB处理器1026。例如，多个BB处理器1026可以与eNB 1000使用的多个频带兼容。如图10所示，无线通信接口1025可以包括多个RF电路1027。例如，多个RF电路1027可以与多个天线元件兼容。虽然图10示出其中无线通信接口1025包括多个BB处理器1026和多个RF电路1027的示例，但是无线通信接口1025也可以包括单个BB处理器1026或单个RF电路1027。
图11是示出可以应用本公开的技术的eNB的示意性配置的第二示例的框图。eNB 1130包括一个或多个天线1140、基站设备1150和RRH1160。RRH 1160和每个天线1140可以经由RF线缆而彼此连接。基站设备1150和RRH 1160可以经由诸如光纤线缆的高速线路而彼此连接。
天线1140中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)并且用于RRH 1160发送和接收无线信号。如图11所示，eNB 1130可以包括多个天线1140。例如，多个天线1140可以与eNB 1130使用的多个频带兼容。虽然图11示出其中eNB 1130包括多个天线1140的示例，但是eNB 1130也可以包括单个天线1140。
基站设备1150包括控制器1151、存储器1152、网络接口1153、无线通信接口1155以及连接接口1157。控制器1151、存储器1152和网络接口1153与参照图10描述的控制器1021、存储器1022和网络接口1023相同。
无线通信接口1155支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且经由RRH 1160和天线1140来提供到位于与RRH 1160对应的 扇区中的终端的无线通信。无线通信接口1155通常可以包括例如BB处理器1156。除了BB处理器1156经由连接接口1157连接到RRH 1160的RF电路1164之外，BB处理器1156与参照图10描述的BB处理器1026相同。如图11所示，无线通信接口1155可以包括多个BB处理器1156。例如，多个BB处理器1156可以与eNB 1130使用的多个频带兼容。虽然图11示出其中无线通信接口1155包括多个BB处理器1156的示例，但是无线通信接口1155也可以包括单个BB处理器1156。
连接接口1157为用于将基站设备1150(无线通信接口1155)连接至RRH 1160的接口。连接接口1157还可以为用于将基站设备1150(无线通信接口1155)连接至RRH 1160的上述高速线路中的通信的通信模块。
RRH 1160包括连接接口1161和无线通信接口1163。
连接接口1161为用于将RRH 1160(无线通信接口1163)连接至基站设备1150的接口。连接接口1161还可以为用于上述高速线路中的通信的通信模块。
无线通信接口1163经由天线1140来传送和接收无线信号。无线通信接口1163通常可以包括例如RF电路1164。RF电路1164可以包括例如混频器、滤波器和放大器，并且经由天线1140来传送和接收无线信号。如图11所示，无线通信接口1163可以包括多个RF电路1164。例如，多个RF电路1164可以支持多个天线元件。虽然图11示出其中无线通信接口1163包括多个RF电路1164的示例，但是无线通信接口1163也可以包括单个RF电路1164。
在图10和图11所示的eNB 1000和eNB 1130中，通过使用图5所描述的处理电路510以及其中的获取单元511以及启动单元512和513可以由控制器1021和/或控制器1151实现，并且通过使用图5所描述的通信单元520可以由无线通信接口1025以及无线通信接口1155和/或无线通信接口1163实现。功能的至少一部分也可以由控制器1021和控制器1151实现。例如，控制器1021和/或控制器1151可以通过执行相应的存储器中存储的指令而执行信息获取功能、中继过程启动功能和切换过程启动功能。
图12是示出可以应用本公开的技术的智能电话1200的示意性配置的示例的框图。智能电话1200包括处理器1201、存储器1202、存储装置 1203、外部连接接口1204、摄像装置1206、传感器1207、麦克风1208、输入装置1209、显示装置1210、扬声器1211、无线通信接口1212、一个或多个天线开关1215、一个或多个天线1216、总线1217、电池1218以及辅助控制器1219。
处理器1201可以为例如CPU或片上系统(SoC)，并且控制智能电话1200的应用层和另外层的功能。存储器1202包括RAM和ROM，并且存储数据和由处理器1201执行的程序。存储装置1203可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口1204为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话1200的接口。
摄像装置1206包括图像传感器(诸如电荷耦合器件(CCD)和互补金属氧化物半导体(CMOS))，并且生成捕获图像。传感器1207可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风1208将输入到智能电话1200的声音转换为音频信号。输入装置1209包括例如被配置为检测显示装置1210的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置1210包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话1200的输出图像。扬声器1211将从智能电话1200输出的音频信号转换为声音。
无线通信接口1212支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口1212通常可以包括例如BB处理器1213和RF电路1214。BB处理器1213可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路1214可以包括例如混频器、滤波器和放大器，并且经由天线1216来传送和接收无线信号。无线通信接口1212可以为其上集成有BB处理器1213和RF电路1214的一个芯片模块。如图12所示，无线通信接口1212可以包括多个BB处理器1213和多个RF电路1214。虽然图12示出其中无线通信接口1212包括多个BB处理器1213和多个RF电路1214的示例，但是无线通信接口1212也可以包括单个BB处理器1213或单个RF电路1214。
此外，除了蜂窝通信方案之外，无线通信接口1212可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口1212可以包括针对每种无线通信方案的BB处理器1213和RF电路1214。
天线开关1215中的每一个在包括在无线通信接口1212中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线1216的连接目的地。
天线1216中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口1212传送和接收无线信号。如图12所示，智能电话1200可以包括多个天线1216。虽然图12示出其中智能电话1200包括多个天线1216的示例，但是智能电话1200也可以包括单个天线1216。
此外，智能电话1200可以包括针对每种无线通信方案的天线1216。在此情况下，天线开关1215可以从智能电话1200的配置中省略。
总线1217将处理器1201、存储器1202、存储装置1203、外部连接接口1204、摄像装置1206、传感器1207、麦克风1208、输入装置1209、显示装置1210、扬声器1211、无线通信接口1212以及辅助控制器1219彼此连接。电池1218经由馈线向图12所示的智能电话1200的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器1219例如在睡眠模式下操作智能电话1200的最小必需功能。
在图12所示的智能电话1200中，通过使用图2所描述的处理电路210以及其中的控制单元211与触发电路221和222，以及通过使用图7所描述的处理电路710以及其中的确定单元711和控制单元712，可以由处理器1201或辅助控制器1219实现，并且通过使用图2所描述的通信单元230和通过使用图7所描述的通信单元720可以由无线通信接口1212实现。功能的至少一部分也可以由处理器1201或辅助控制器1219实现。例如，处理器1201或辅助控制器1219可以通过执行存储器1202或存储装置1203中存储的指令而执行各种测量上报功能和中继通信功能。
图13是示出可以应用本公开的技术的汽车导航设备1320的示意性配置的示例的框图。汽车导航设备1320包括处理器1321、存储器1322、全球定位系统(GPS)模块1324、传感器1325、数据接口1326、内容播放器1327、存储介质接口1328、输入装置1329、显示装置1330、扬声器1331、无线通信接口1333、一个或多个天线开关1336、一个或多个天线1337以及电池1338。
处理器1321可以为例如CPU或SoC，并且控制汽车导航设备1320的导航功能和另外的功能。存储器1322包括RAM和ROM，并且存储 数据和由处理器1321执行的程序。
GPS模块1324使用从GPS卫星接收的GPS信号来测量汽车导航设备1320的位置(诸如纬度、经度和高度)。传感器1325可以包括一组传感器，诸如陀螺仪传感器、地磁传感器和空气压力传感器。数据接口1326经由未示出的终端而连接到例如车载网络1341，并且获取由车辆生成的数据(诸如车速数据)。
内容播放器1327再现存储在存储介质(诸如CD和DVD)中的内容，该存储介质被插入到存储介质接口1328中。输入装置1329包括例如被配置为检测显示装置1330的屏幕上的触摸的触摸传感器、按钮或开关，并且接收从用户输入的操作或信息。显示装置1330包括诸如LCD或OLED显示器的屏幕，并且显示导航功能的图像或再现的内容。扬声器1331输出导航功能的声音或再现的内容。
无线通信接口1333支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口1333通常可以包括例如BB处理器1334和RF电路1335。BB处理器1334可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路1335可以包括例如混频器、滤波器和放大器，并且经由天线1337来传送和接收无线信号。无线通信接口1333还可以为其上集成有BB处理器1334和RF电路1335的一个芯片模块。如图13所示，无线通信接口1333可以包括多个BB处理器1334和多个RF电路1335。虽然图13示出其中无线通信接口1333包括多个BB处理器1334和多个RF电路1335的示例，但是无线通信接口1333也可以包括单个BB处理器1334或单个RF电路1335。
此外，除了蜂窝通信方案之外，无线通信接口1333可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线LAN方案。在此情况下，针对每种无线通信方案，无线通信接口1333可以包括BB处理器1334和RF电路1335。
天线开关1336中的每一个在包括在无线通信接口1333中的多个电路(诸如用于不同的无线通信方案的电路)之间切换天线1337的连接目的地。
天线1337中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口1333传送和接 收无线信号。如图13所示，汽车导航设备1320可以包括多个天线1337。虽然图13示出其中汽车导航设备1320包括多个天线1337的示例，但是汽车导航设备1320也可以包括单个天线1337。
此外，汽车导航设备1320可以包括针对每种无线通信方案的天线1337。在此情况下，天线开关1336可以从汽车导航设备1320的配置中省略。
电池1338经由馈线向图13所示的汽车导航设备1320的各个块提供电力，馈线在图中被部分地示为虚线。电池1338累积从车辆提供的电力。
在图13示出的汽车导航设备1320中，通过使用图2所描述的处理电路210以及其中的控制单元211与触发电路221和222，以及通过使用图7所描述的处理电路710以及其中的确定单元711和控制单元712，可以由处理器1321实现，并且通过使用图2所描述的通信单元230和通过使用图7所描述的通信单元720可以由无线通信接口1333实现。功能的至少一部分也可以由处理器1321实现。例如，处理器1321可以通过执行存储器1322中存储的指令而执行各种测量上报功能和中继通信功能。
本公开的技术也可以被实现为包括汽车导航设备1320、车载网络1341以及车辆模块1342中的一个或多个块的车载系统(或车辆)1340。车辆模块1342生成车辆数据(诸如车速、发动机速度和故障信息)，并且将所生成的数据输出至车载网络1341。
在本公开的系统和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上虽然结合附图详细描述了本公开的实施例，但是应当明白，上面所描述的实施方式只是用于说明本公开，而并不构成对本公开的限制。对于本领域的技术人员来说，可以对上述实施方式作出各种修改和变更而没有背离本公开的实质和范围。因此，本公开的范围仅由所附的权利要求及其等效含义来限定。

Claims (30)

  1. 一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻小区，所述电子设备包括：
    收发机；
    第一触发电路，被配置为使所述收发机进行第一测量上报，以辅助启动用于使所述电子设备经由中继用户设备与所述当前小区进行通信的中继过程；
    第二触发电路，被配置为使所述收发机进行第二测量上报，以辅助启动用于使所述电子设备从所述当前小区切换到所述相邻小区的切换过程；以及
    一个或多个处理电路，被配置为对所述第一触发电路和所述第二触发电路进行控制，以使所述收发机在进行所述第二测量上报之前进行所述第一测量上报。
  2. 根据权利要求1所述的电子设备，其中，所述第二测量上报为A3事件的测量上报，并且
    其中，当确定A3事件的进入条件被满足时，所述第二触发电路开始计时；当确定A3事件的离开条件被满足时，所述第二触发电路被清零；并且当所述第二触发电路的计时结果等于触发时间TTT_A3时，使所述收发机进行所述第二测量上报以辅助启动所述切换过程。
  3. 根据权利要求2所述的电子设备，其中，所述第一测量上报为中继事件的测量上报，
    其中，所述处理电路对中继事件进行配置，使得当确定中继事件的进入条件被满足时，所述第一触发电路开始计时；当确定中继事件的离开条件被满足时，所述第一触发电路被清零；并且当所述第一触发电路的计时结果等于触发时间TTT_R时，使所述收发机进行所述第一测量上报以辅助启动所述中继过程，
    其中，所述处理电路对中继事件的进入条件进行配置，使得所述第一触发电路先于所述第二触发电路开始计时，并且
    其中，所述处理电路对中继事件的离开条件进行配置，使得所述第一 触发电路晚于所述第二触发电路被清零。
  4. 根据权利要求3所述的电子设备，其中，所述处理电路进一步对中继事件的进入条件进行配置，使得只有当确定所述电子设备即将进入所述切换过程时，才满足中继事件的进入条件。
  5. 根据权利要求3所述的电子设备，其中，基于所述收发机从所述当前小区和所述相邻小区接收到的参考信号接收功率RSRP，所述处理电路对所述第一触发电路和所述第二触发电路进行控制。
  6. 根据权利要求3所述的电子设备，其中，所述处理电路对中继事件进行配置，利用缩放参数对影响A3事件的迟滞效应的有关参数进行缩放，以设置所述中继事件的迟滞效应的有关参数，从而使所述收发机在进行所述第二测量上报之前进行所述第一测量上报，其中所述处理电路基于来自基站的指示信息确定所述缩放参数。
  7. 根据权利要求3所述的电子设备，其中，所述处理电路对中继事件进行配置，使得中继事件的进入条件中的迟滞参数为A3事件的进入条件中的迟滞参数的x倍，并且中继事件的离开条件中的迟滞参数为A3事件的离开条件中的迟滞参数的1+x倍，其中x为范围在0到1之间的实数。
  8. 根据权利要求3所述的电子设备，其中，所述处理电路对中继事件进行配置，使得TTT_R＝x*TTT_A3，其中x为范围在0到1之间的实数。
  9. 根据权利要求3所述的电子设备，其中，当确定使中继事件的进入条件被满足的相邻小区与使A3事件的进入条件被满足的相邻小区相同时，所述处理电路将TTT_A3调整为1-x倍，其中x为范围在0到1之间的实数。
  10. 根据权利要求1所述的电子设备，其中，基于所述收发机接收到的指示所述中继用户设备的信息，所述处理电路进行控制，以使所述电子设备通过基于邻近的服务连接到所述中继用户设备，以在从所述当前服务小区切换到所述相邻小区之前经由所述中继用户设备与所述当前小区进行通信。
  11. 根据权利要求3所述的电子设备，进一步包括：
    第三触发电路，被配置为使所述收发机进行第三测量上报，以辅助启动用于使所述电子设备回归与所述当前小区直接进行通信的去中继过程，
    其中，所述第三测量上报为去中继事件的测量上报，
    其中，所述处理电路对去中继事件进行配置，使得当确定去中继事件的进入条件被满足时，所述第三触发电路开始计时；当确定去中继事件的离开条件被满足时，所述第三触发电路被清零；并且当所述第三触发电路的计时结果等于触发时间TTT_～R时，使所述收发机进行所述第三测量上报以辅助启动所述去中继过程，
    其中，所述处理电路对去中继事件的进入条件进行配置，使得去中继事件的进入条件与中继事件的离开条件相同，
    其中，所述处理电路对去中继事件的离开条件进行配置，使得去中继事件的离开条件与中继事件的进入条件相同，并且
    其中，所述处理电路对去中继事件进行配置，使得TTT_～R＝TTT_R。
  12. 根据权利要求1至11中任一项所述的电子设备，其中，所述无线通信系统为高级长期演进LTE-A蜂窝通信系统，并且所述电子设备为所述无线通信系统中的用户设备。
  13. 一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻小区，所述电子设备包括：
    一个或多个处理电路，所述处理电路被配置为执行以下操作：
    获取来自所述当前小区的用户设备的第一测量上报；
    启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；
    在获取所述第一测量上报之后，获取来自所述用户设备的第二测量上报；以及
    启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程。
  14. 根据权利要求13所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    获取所述当前小区中的每个用户设备的区域信息；
    基于所述区域信息确定至少一个候选中继用户设备；以及
    选择所述候选中继用户设备中的一个作为所述中继用户设备。
  15. 根据权利要求14所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    获取所述候选中继用户设备中的每一个的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个；
    基于获取的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个，确定所述候选中继用户设备中的每一个的中继能力优先级；以及
    基于所述中继能力优先级来确定所述中继用户设备。
  16. 根据权利要求13所述的电子设备，其中，所述第一测量上报为中继事件的测量上报，并且
    其中，所述处理电路进一步被配置为执行以下操作：
    基于所述当前小区的覆盖范围和作为目标小区的相邻小区的覆盖范围设置缩放参数；以及
    生成包含所述缩放参数的关于中继事件的测量配置信息以通知所述用户设备。
  17. 根据权利要求13所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    确定是否存在可用中继用户设备；以及
    响应于确定不存在可用中继用户设备，不启动所述中继过程。
  18. 根据权利要求13所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    在获取所述第一测量上报之后，获取来自所述用户设备的第三测量上报；以及
    启动用于使所述用户设备回归与所述当前小区直接进行通信的去中继过程。
  19. 根据权利要求13至18中任一项所述的电子设备，其中，所述电子设备为基站，并且还包括收发机，所述收发机被配置为接收当前小区的用户设备传送的信息。
  20. 一种无线通信系统中的电子设备，在所述无线通信系统中存在多个小区，所述多个小区包括所述电子设备所在的当前小区和至少一个相邻 小区，所述电子设备包括：
    收发机；以及
    一个或多个处理电路，所述处理电路被配置为执行以下操作：
    确定用于所述当前小区中的用户设备的中继配置信息；以及
    基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，使所述收发机在所述用户设备和所述当前小区之间进行中继通信。
  21. 根据权利要求20所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    确定来自所述当前小区的信号与干扰加噪声比SINR；
    基于SINR确定所述电子设备所处的区域为所述当前小区的中心区域、中间区域还是边缘区域；以及
    使所述收发机将关于所述电子设备所处区域的区域信息发送到所述当前小区的基站，以便所述基站确定候选中继用户设备。
  22. 根据权利要求21所述的电子设备，其中，所述处理电路使所述收发机周期性地将所述区域信息发送到所述基站，或者
    其中，当所述区域信息发生变化时，所述处理电路使所述收发机将所述区域信息发送到所述基站。
  23. 根据权利要求20所述的电子设备，其中，所述处理电路进一步被配置为执行以下操作：
    确定所述电子设备的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个；以及
    使所述收发机将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到所述当前小区的基站，以便所述基站确定所述电子设备的中继能力优先级。
  24. 根据权利要求23所述的电子设备，其中，基于所述收发机接收到的来自所述当前小区的参考信号接收功率RSRP的变化率，所述处理电路确定关于所述电子设备的移动速度的移动状态信息。
  25. 根据权利要求23所述的电子设备，其中，所述处理电路使所述收发机周期性地将确定的移动状态信息、电量信息、负载信息和服务质量 信息中的至少一个发送到所述基站，或者
    其中，当确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发生变化时，所述处理电路使所述收发机将确定的移动状态信息、电量信息、负载信息和服务质量信息中的至少一个发送到所述基站。
  26. 根据权利要求20至25中任一项所述的电子设备，其中，所述无线通信系统为高级长期演进LTE-A蜂窝通信系统，并且所述电子设备为所述无线通信系统中的中继用户设备。
  27. 一种包括当前小区和至少一个相邻小区的无线通信系统，包括：
    用户设备，所述用户设备包括：
    第一收发机；
    第一触发电路，被配置为使所述收发机进行第一测量上报，以辅助启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；
    第二触发电路，被配置为使所述收发机进行第二测量上报，以辅助启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程；以及
    一个或多个第一处理电路，被配置为对所述第一触发电路和所述第二触发电路进行控制，以使所述收发机在进行所述第二测量上报之前进行所述第一测量上报；
    基站，所述基站包括：
    一个或多个第二处理电路，所述第二处理电路被配置为执行以下操作：
    获取所述第一测量上报；
    启动所述中继过程；
    在获取所述第一测量上报之后，获取所述第二测量上报；以及
    启动所述切换过程；以及
    中继用户设备，所述中继用户设备包括：
    第二收发机；以及
    一个或多个第三处理电路，所述第三处理电路被配置为执行以下操 作：
    确定用于所述用户设备的中继配置信息；以及
    基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，使所述收发机在所述用户设备和所述当前小区之间进行中继通信。
  28. 一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：
    进行第一测量上报，以辅助启动用于使用户设备经由中继用户设备与所述当前小区进行通信的中继过程；以及
    在进行所述第一测量上报之后进行第二测量上报，以辅助启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程。
  29. 一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：
    获取来自所述当前小区的用户设备的第一测量上报；
    启动用于使所述用户设备经由中继用户设备与所述当前小区进行通信的中继过程；
    在获取所述第一测量上报之后，获取来自所述用户设备的第二测量上报；以及
    启动用于使所述用户设备从所述当前小区切换到所述相邻小区的切换过程。
  30. 一种用于在无线通信系统中进行无线通信的方法，在所述无线通信系统中存在多个小区，所述多个小区包括当前小区和相邻小区，所述方法包括：
    确定用于所述当前小区中的用户设备的中继配置信息；以及
    基于所述中继配置信息，在所述用户设备从所述当前小区切换到所述相邻小区之前，在所述用户设备和所述当前小区之间进行中继通信。
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