WO2014101071A1 - Procédé et dispositif de commutation - Google Patents

Procédé et dispositif de commutation Download PDF

Info

Publication number
WO2014101071A1
WO2014101071A1 PCT/CN2012/087744 CN2012087744W WO2014101071A1 WO 2014101071 A1 WO2014101071 A1 WO 2014101071A1 CN 2012087744 W CN2012087744 W CN 2012087744W WO 2014101071 A1 WO2014101071 A1 WO 2014101071A1
Authority
WO
WIPO (PCT)
Prior art keywords
dpcch
channel quality
ack
base station
preset
Prior art date
Application number
PCT/CN2012/087744
Other languages
English (en)
Chinese (zh)
Inventor
黄鑫
吴贤斌
戴丁樟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280002594.9A priority Critical patent/CN103299681B/zh
Priority to PCT/CN2012/087744 priority patent/WO2014101071A1/fr
Publication of WO2014101071A1 publication Critical patent/WO2014101071A1/fr

Links

Classifications

    • 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
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a handover method and device. Background technique
  • the base station passes a High Speed Shared Control Channel (HS-SCCH) in a Transmission Time Interval (TTI). Transmitting signaling information to the UE, where the signaling information may include a user equipment (UE) identifier, a data block size sent to the UE, a modulation scheme used, and the like, and a high-speed physical downlink shared channel (High-Speed Physical Downlink Shared Channel, HS-PDSCH) transmits the data block to the UE.
  • UE user equipment
  • HS-PDSCH High-Speed Physical Downlink Shared Channel
  • the UE scouts the UE identifier sent by the HS-SCCH in each TTI, so as to determine whether the data block sent on the corresponding HS-PDSCH in the TTI belongs to itself, and if yes, starts receiving on the HS-PDSCH.
  • the transmitted data block if not, does not respond.
  • the ACK is fed back to the base station by using an Uplink high speed dedicated physical control channel (HS-DPCCH), so that the base station continues to transmit the next data block, if the UE receives If the data block fails, the NACK is fed back to the base station through the HS-DPCCH, so that the base station retransmits the data block.
  • the UE may also measure the channel quality of the HS-PDSCH, and obtain a channel quality indicator (CQI), and report the CQI to the base station through the HS-DPCCH.
  • CQI channel quality indicator
  • the downlink signal quality received by the UE from the two cells may be equal, and the switching of the serving cell is not triggered at this time.
  • the uplink received signal to noise ratio of the UE to the serving cell may be much worse than that of the non-serving cell, for example, the serving cell has a pilot transmission power greater than 6 dB than the non-serving cell, or the receiving antenna of the non-serving cell is smaller than the serving cell. More than 3 (such as service The cell is one antenna, the non-serving cell is four antennas, or the uplink wideband receive power (RTWP) of the serving cell is higher than the non-serving cell by more than 6 dB.
  • RWP uplink wideband receive power
  • the uplink and the non-serving cell have a "long and short leg" effect, that is, the uplink DPCCH signal-to-noise ratio of the serving cell is very poor, and the received signal-to-noise ratio of the HS-DPCCH demodulated only in the serving cell is also low. Therefore, the UE feeds back the ACK (or NACK or CQI) to the base station in the serving cell through the HS-DPCCH, which is prone to demodulation failure, thereby causing downlink data transmission delay or even no data transmission, and reducing the downlink data transmission throughput rate.
  • the present invention provides a handover method and apparatus, which can improve downlink data transmission throughput.
  • a handover method including:
  • the serving cell of the UE is switched to the target cell, and the channel quality and the downlink channel of the HS-DPCCH of the target cell satisfy the second preset condition.
  • the obtaining the channel quality description information of the HS-DPCCH in the serving cell of the user equipment UE includes: receiving a correct response ACK/negative acknowledgement NACK sent by the base station Obtaining a leak detection probability of the channel quality description information of the HS-DPCCH in the serving cell of the UE, where the PDCCH/N ACK leakage detection probability is that the base station does not receive the HS-DPCCH within a preset time period a ratio of the number of ACK/NACKs received to the number of times the base station sends scheduling information to the UE by using the downlink high-speed shared control channel HS-SCCH in the preset time period, where the scheduling information is to notify the UE that the Setting a transmission time interval TTI to send a data block to the UE through a high-speed physical downlink shared channel HS-PDSCH; Or, obtaining channel quality description information of the HS-DPCCH in the serving cell of the UE by
  • the HS in the serving cell of the UE is obtained by receiving a missed detection probability of a correct response ACK/negative acknowledgement NACK sent by the base station. Determining, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition according to the channel quality description information of the DPCCH includes:
  • the channel quality of the HS-DPCCH meets the first preset condition, and specifically includes:
  • Determining whether the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, and determining that the channel quality of the HS-DPCCH is satisfied when the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold The first preset condition.
  • the acquiring the channel quality description information of the HS-DPCCH in the serving cell of the user equipment UE includes: directly indicating, by the receiving base station, the HS-DPCCH The channel quality description information satisfies the channel quality description information of the first preset condition, where the channel quality description information is used by the base station when the PDCCH/NACK leak detection probability is greater than the first preset threshold, or the HS-DPCCH CQI The unreliable probability is greater than the second preset threshold when sent;
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period. And a ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE, where the scheduling information is used to notify the UE to send to the UE by using the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI. data block.
  • a switching device including:
  • An obtaining module configured to acquire channel quality description information of an uplink high-speed dedicated physical control channel HS-DPCCH in a serving cell of the user equipment UE;
  • a determining module configured to determine the content according to the channel quality description information
  • the channel quality of the HS-DPCCH satisfies the first preset condition
  • a switching module configured to: when the determining module determines that the channel quality meets the first preset condition, switch a serving cell of the UE to a target cell, and perform channel quality and downlink of the HS-DPCCH of the target cell The channel satisfies the second preset condition.
  • the acquiring module is specifically configured to acquire an HS in a serving cell of the UE by receiving a missed detection probability of a correct response ACK/negative acknowledgement NACK sent by the base station a channel quality description information of the DPCCH, where the PDCCH/NACK leakage detection probability is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH within a preset time period and the base station are in the The ratio of the number of times the scheduling information is sent to the UE by the downlink high-speed shared control channel HS-SCCH in the preset time period, where the scheduling information is used to notify the UE to pass the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI. Transmitting a data block to the UE;
  • the acquiring module is specifically configured to obtain channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
  • the determining module is specifically configured to determine whether a PDCCH/NACK leak detection probability is greater than a first preset threshold, and Determining that a channel quality of the HS-DPCCH meets the first preset condition when a PDCCH/NACK leak detection probability is greater than a first preset threshold;
  • the determining module is specifically configured to determine whether the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, when the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, Determining the channel quality of the HS-DPCCH The first preset condition is met.
  • the acquiring module is configured to receive, by the receiving base station, a channel that directly indicates that the channel quality of the HS-DPCCH meets the first preset condition.
  • Quality description information where the channel quality description information is sent by the base station when the ACK/NACK leak detection probability is greater than the first preset threshold, or when the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold;
  • the leakage detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink high speed in the preset time period.
  • the scheduling information is to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • a switching device including:
  • a receiver configured to acquire channel quality description information of an uplink high-speed dedicated physical control channel HS-DPCCH in a serving cell of the user equipment UE;
  • a processor configured to determine, according to the channel quality description information, that a channel quality of the HS-DPCCH meets a first preset condition
  • the processor is further configured to: when determining that the channel quality meets the first preset condition, handover a serving cell of the UE to a target cell, a channel quality of the HS-DPCCH of the target cell, and a downlink channel The second preset condition is met.
  • the receiver is configured to acquire an HS in a serving cell of the UE by receiving a missed detection probability of a correct response ACK/negative acknowledgement NACK sent by the base station.
  • a channel quality description information of the DPCCH where the PDCCH/NACK leakage detection probability is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH within a preset time period and the base station are in the The ratio of the number of times the scheduling information is sent to the UE by the downlink high-speed shared control channel HS-SCCH in the preset time period, where the scheduling information is used to notify the UE to pass the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • the receiver is specifically configured to obtain channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
  • the processor is specifically configured to determine whether a PDCCH/NACK leak detection probability is greater than a first preset threshold, and Determining that a channel quality of the HS-DPCCH meets the first preset condition when a PDCCH/NACK leak detection probability is greater than a first preset threshold;
  • the processor is specifically configured to determine whether the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold. When the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, Determining that the channel quality of the HS-DPCCH satisfies the first preset condition.
  • the receiver is configured to receive, by the receiving base station, a channel that directly indicates that the channel quality of the HS-DPCCH meets the first preset condition. a quality description information, where the channel quality description information is sent by the base station when the ACK/NACK leak detection probability is greater than the first preset threshold, or when the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold;
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • the ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE.
  • the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • the channel quality description information of the HS-DPCCH in the serving cell of the UE may be obtained by using the foregoing technical solution, and determining, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition (ie, When the channel quality of the HS-DPCCH is poor, the serving cell of the UE is switched to the target cell.
  • the channel quality and the downlink channel of the HS-DPCCH of the target cell satisfy the second preset The condition that the channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can meet the communication requirement of the UE, and thus the transmission throughput rate of the downlink data of the UE can be guaranteed.
  • the uplink channel quality of the serving cell is poor and the downlink channel quality is good
  • the UE moves from the serving cell to another cell, it moves to the intersection area of the two cells.
  • the channel quality of the HS-DPCCH in the serving cell is degraded.
  • the serving cell can be handed over to the target cell by using the method provided by the embodiment of the present invention.
  • the downlink data transmission throughput rate is low compared to the prior art, and the embodiment of the present invention can improve the downlink data transmission throughput rate.
  • FIG. 1 is a flowchart of a handover method according to an embodiment of the present invention
  • FIG. 2 is a structural diagram of a switching device according to an embodiment of the present invention.
  • FIG. 3 is another structural diagram of a switching device according to an embodiment of the present invention.
  • the embodiment of the present invention provides a handover method. If a UE moves from a current serving cell to a target cell and moves to an intersection region of the two cells, the downlink signal quality received by the UE from the two cells is equivalent, that is, downlink.
  • the channel quality of the channel is better, but when the channel quality of the serving cell uplink channel is poor, the UE can be implemented.
  • the serving cell switches to the target cell, and the channel quality of the uplink channel and the downlink channel of the target cell are both good, which can meet the communication requirement of the UE.
  • the method is implemented as a radio network controller (RNC).
  • the method includes: 101.
  • the RNC acquires an uplink high-speed dedicated physics in a serving cell of the user equipment UE.
  • This step can be implemented in the following ways:
  • Manner 1 The RNC obtains the channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving the missed detection probability of the correct acknowledgement ACK/negative acknowledgement NACK sent by the base station.
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • the ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE.
  • the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • the base station may send scheduling information to the UE through the HS-SCCH in a preset time period, and if the UE successfully receives the data block from the HS-PDSCH in the preset TTI indicated by the scheduling information, the preset TTI
  • the ACK is sent to the base station through the HS-DPCCH. If the data block is received from the HS-PDSCH in the preset TTI, the NACK is sent to the base station through the HS-DPCCH in the preset TTI.
  • the base station may count the number of ACK/NACKs received from the HS-DPCCH in the preset time period and the number of times the scheduling information is sent to the UE by using the HS-SCCH in the preset time period, where The difference between the number of times the scheduling information is sent to the UE by the HS-SCCH in the preset time period and the number of ACK/NACKs received from the HS-DPCCH in the preset time period is the preset time. The number of ACK/NACKs not received from the HS-DPCCH in the segment.
  • the base station calculates a leak detection probability of the ACK/NACK, and may periodically send the ACK/NACK leak detection probability to the RNC.
  • Manner 2 The RNC acquires channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
  • the calculation process of the unreliable probability of the CQI of the HS-DPCCH is:
  • the base station can perform channel quality measurement on the HS-DPCCH every certain period (for example, 2ms or 4ms), obtain the CQI value of the HS-DPCCH, and use the translation
  • the code scoring technique determines whether the CQI value of the HS-DPCCH is reliable.
  • the base station counts the number of times that the CQI reliability determination result is unreliable in a plurality of cycles, and the ratio of the CQI reliability determination result to the unreliable number of times and the total number of CQI reliability determinations is the HS-DPCCH The unreliable probability of CQI.
  • the base station may periodically send an unreliable probability of the CQI of the HS-DPCCH to the base station.
  • Manner 3 The RNC receives the channel quality description information that is sent by the base station and directly indicates that the channel quality of the HS-DPCCH meets the first preset condition.
  • the base station first calculates the leak detection probability of the ACK/NACK.
  • the specific calculation method refer to the description in the foregoing mode 1.
  • the base station determines whether the ACK/NACK leak detection probability is greater than the first preset threshold, if the ACK/NACK leak detection probability is greater than the first preset threshold, the channel quality of the HS-DPCCH is indicated.
  • the base station sends the channel quality description information to the RNC.
  • the base station first calculates an unreliable probability of the CQI of the HS-DPCCH.
  • the base station determines
  • the base station sends the channel quality description information to the RNC.
  • the value ranges of the first preset threshold and the second preset threshold may be, for example, 20%-80%. If the first preset threshold or the second preset threshold is set too small, the base station may frequently send the channel quality description letter to the RNC. Interest rate, which is easy to cause waste of channel resources, and also causes the RNC to easily trigger the change of the serving cell, and more service cell changes may cause signaling call drop. The earlier service cell change may be due to insufficient downlink quality of the non-serving cell. Good cause HSDPA throughput to drop.
  • the base station may be slow to judge the channel quality of the HS-DPCCH, and the later change of the serving cell may cause the HSDPA throughput rate to be seriously degraded or even dropped.
  • the bottom that is, the throughput rate is zero. Therefore, in actual application, the specific values of the first preset threshold or the second preset threshold need to properly solve the above two problems.
  • the RNC determines, according to the channel quality description information, that a channel quality of the HS-DPCCH meets the first preset condition.
  • the step 101 is specifically performed as follows: determining whether the ACK/NACK leak detection probability is greater than the first preset threshold, when the ACK/NACK leak detection probability is greater than the first preset threshold And determining, that the channel quality of the HS-DPCCH meets the first preset condition (that is, the channel quality is poor).
  • step 101 When step 101 is used in the second mode, the step is specifically performed as follows: determining whether the unreliable probability of the CQI is greater than a second preset threshold. When the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold, Determining that the channel quality of the HS-DPCCH satisfies the first preset condition (ie, the channel quality is poor).
  • the step may determine, according to the channel quality description information, that the channel quality of the HS-DPCCH satisfies the first preset condition (that is, the channel quality is poor).
  • the RNC switches the serving cell of the UE to the target cell, and the channel quality and the downlink channel of the HS-DPCCH of the target cell meet the second preset condition, that is, the channel quality of the HS-DPCCH of the target cell. Both the channel quality of the downlink channel and the downlink channel can meet the communication requirements of the UE.
  • the uplink channel is HS-DPCCH
  • the downlink channel includes HS-SCCH and HS-PDSCH.
  • the process of selecting the target cell by the RNC is as follows: In the downlink channel direction, the RNC may send the chip-level receiving energy in the unit power density of the total receiving bandwidth of the cell to the UE ( Received energy per chip Divided by the power density in the band , Ec / NO ) (or Received Signal Code Power (RSCP)) measurement indication information, the UE receives the Ec/NO (or RSCP) measurement indication information, starts the cell The Ec/NO (or RSCP) measurement is performed, and the measured Ec/N0 (or RSCP) measurement values of the respective cells are transmitted to the RNC through the base station.
  • Ec/NO Received energy per chip Divided by the power density in the band
  • RSCP Received Signal Code Power
  • the RNC After receiving the Ec/NO (or RSCP) measurement value of each cell, the RNC compares whether the measured value of each cell Ec/NO (or RSCP) is greater than the third threshold, if the measured value of Ec/NO (or RSCP) is greater than the first value.
  • the three thresholds indicate that the HS-SCCH and HS-PDSCH (downlink channel) quality in the cell is very good.
  • the base station performs a signal to interference ratio (SIR) measurement, and if the obtained cell SIR measurement value is different from the preset SIR target value by less than the fourth preset threshold (for example, -3 dB), SIR error EVENT F Report A is sent to the RNC. Otherwise, if the obtained cell SIR measurement value is different from the preset SIR target value by not less than the fourth preset threshold, the base station sends an SIR error event to the RNC.
  • F Report B SIR error EVENT F Report B
  • the base station sends a SIR error to the RNC.
  • the EVENT F Report B indicates that the DPCCH uplink channel of the cell is very good, so the channel quality of the HS-DPCCH (uplink channel) is also very good.
  • the RNC selects the measured value of Ec/NO (or RSCP) to be greater than the third threshold, and receives the cell of SIR error EVENT F Report B from the cell as the target cell.
  • the RNC may obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE, and when determining, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition, The serving cell of the UE is handed over to the target cell.
  • the channel quality of the HS-DPCCH of the target cell and the downlink channel satisfy the second preset condition, that is, the channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can satisfy the communication requirement of the UE, and thus The transmission throughput rate of the downlink data of the UE can be guaranteed.
  • the uplink channel quality long leg ie, the serving cell uplink channel
  • the quality is poor and the downlink channel quality is good, for example, when the UE moves from the serving cell to another cell and moves to the intersection of the two cells, in the serving cell
  • the channel quality of the HS-DPCCH is degraded.
  • the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention.
  • the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells.
  • the downlink signal quality is equal, the handover of the serving cell cannot be triggered, and the downlink data transmission throughput rate is low. Compared with the embodiment of the present invention, the downlink data transmission throughput rate can be improved.
  • an embodiment of the present invention further provides a switching device, where the device is specifically an RNC, and the device includes:
  • the obtaining module 21 is configured to obtain channel quality description information of the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell of the user equipment UE;
  • the determining module 22 is configured to determine, according to the channel quality description information, that a channel quality of the HS-DPCCH meets the first preset condition;
  • the switching module 23 is configured to: when the determining module 22 determines that the channel quality meets the first preset condition, switch the serving cell of the UE to a target cell, and the channel quality of the HS-DPCCH of the target cell And the downlink channel satisfies the second preset condition, that is, the channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can satisfy the communication requirement of the UE.
  • the RNC may obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE, and determine, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition (also That is, when the channel quality of the HS-DPCCH is poor, the serving cell of the UE is switched to the target cell.
  • the channel quality of the HS-DPCCH of the target cell and the downlink channel satisfy the second preset condition, that is, the channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can satisfy the communication requirement of the UE, and thus The transmission throughput rate of the downlink data of the UE can be guaranteed.
  • the uplink channel quality is long and short legs (that is, the uplink channel quality of the serving cell is poor and the downlink channel quality is good)
  • the UE moves from the serving cell to another cell, it moves to the intersection area of the two cells. In the service area
  • the channel quality of the HS-DPCCH is degraded.
  • the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention.
  • the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells.
  • the downlink signal quality is equal, the handover of the serving cell cannot be triggered, and the downlink data transmission throughput rate is low. Compared with the embodiment of the present invention, the downlink data transmission throughput rate can be improved.
  • the acquiring module 21 is specifically configured to obtain channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving a missed detection probability of the correct acknowledgement ACK/negative acknowledgement NACK sent by the base station.
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • the ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE.
  • the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • the determining module 22 is specifically configured to determine whether the PDCCH/NACK leak detection probability is greater than the first preset threshold, and when the ACK/NACK leak detection probability is greater than the first preset threshold, determine The channel quality of the HS-DPCCH satisfies the first preset condition.
  • the acquiring module 21 is specifically configured to obtain channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
  • the specific calculation method of the unreliable probability of the CQI of the HS-DPCCH can also be See the description of mode two in step 101 above.
  • the determining module 22 is specifically configured to determine whether the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, and the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset gate.
  • the time limit is determined to determine that the channel quality of the HS-DPCCH meets the first preset condition.
  • the acquiring module 21 is specifically configured to: by using the channel quality description information that is sent by the base station and directly indicating that the channel quality of the HS-DPCCH meets the first preset condition, where the channel quality description information is The base station sends when the ACK/NACK leak detection probability is greater than the first preset threshold, or when the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold;
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • a ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE, and the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI;
  • the determining module may specifically determine, according to the channel quality description information, that a channel quality of the HS-DPCCH meets the first preset condition.
  • a switching device which is specifically an RNC, and includes: a receiver 31, a processor 32, a memory 33, a bus 3000, and a driving circuit 3001.
  • the receiver 31 is configured to acquire channel quality description information of the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell of the user equipment UE.
  • the processor 32 is configured to determine, according to the channel quality description information, that a channel quality of the HS-DPCCH meets a first preset condition
  • the processor 32 is further configured to: when determining that the channel quality meets the first preset condition, handover a serving cell of the UE to a target cell, and perform channel quality and downlink of the HS-DPCCH of the target cell The channel satisfies a second predetermined condition, that is, the target The channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can satisfy the communication requirements of the UE.
  • the function implementation process of the processor 32 can also be referred to the description of steps 102 and 103 above.
  • receiver 3 1 can be coupled to the antenna.
  • the memory 33 includes at least one or more of the following memory devices, a read only memory, a random access memory or a nonvolatile random access memory, and the memory provides instructions and data to the processor.
  • the processor may be an integrated circuit chip with signal processing capability.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor or an instruction in a form of software.
  • These instructions may be implemented and controlled by a processor therein for performing the methods disclosed in the embodiments of the present invention.
  • the processor may also be a general purpose processor, a digital signal processing (DSP), an application specific integrated circuit, a Field Programmable Gate Array (FPGA) or other programmable logic. Devices, discrete gates or transistor logic devices, discrete hardware components.
  • the above general purpose processor may be a microprocessor or the processor may be any conventional processor, decoder or the like.
  • the steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the driving circuit 3001 is used to provide driving for each hardware in the RNC so that each hardware can work normally.
  • the various hardware components of the RNC are coupled together by a bus system 3000, wherein the bus system 3000 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • the bus system 3000 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as the bus system 3000 in FIG.
  • the RNC may obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE, and determine, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition (also That is, when the channel quality of the HS-DPCCH is poor, the serving cell of the UE is switched to the target cell.
  • the channel quality of the HS-DPCCH of the target cell and the downlink channel satisfy the second preset condition, that is, the channel quality of the HS-DPCCH of the target cell and the channel quality of the downlink channel can satisfy the communication requirement of the UE, and thus The transmission throughput rate of the downlink data of the UE can be guaranteed.
  • the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention.
  • the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells.
  • the downlink signal quality is equal, the handover of the serving cell cannot be triggered, and the downlink data transmission throughput rate is low.
  • the downlink data transmission throughput rate can be improved.
  • the receiver 31 is specifically configured to acquire channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving a missed detection probability of a correct response ACK/negative acknowledgement NACK sent by the base station.
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • the ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE.
  • the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
  • the processor 32 is specifically configured to determine whether the PDCCH/NACK leak detection probability is greater than a first preset threshold, and when the ACK/NACK leak detection probability is greater than the first preset threshold, determine The channel quality of the HS-DPCCH meets the first preset condition;
  • the receiver 31 is specifically configured to acquire channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
  • the processor 32 is specifically configured to determine whether the unreliable probability of the CQI of the HS-DPCCH is greater than a second preset threshold, and the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset gate.
  • the time limit is determined to determine that the channel quality of the HS-DPCCH meets the first preset condition.
  • the receiver 31 is configured to: by using a channel quality description information that is sent by the base station and directly indicating that the channel quality of the HS-DPCCH meets the first preset condition, where the channel quality description information is The base station sends when the ACK/NACK leak detection probability is greater than the first preset threshold, or when the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold;
  • the leak detection probability of the ACK/NACK is that the number of ACK/NACKs that the base station does not receive from the HS-DPCCH in the preset time period and the base station pass the downlink in the preset time period.
  • a ratio of the number of times the high-speed shared control channel HS-SCCH sends the scheduling information to the UE, and the scheduling information is used to notify the UE to send a data block to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI;
  • the processor 32 may specifically determine, according to the channel quality description information, that the channel quality of the HS-DPCCH meets the first preset condition.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course It can be done through hardware, but in many cases the former is a better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention se rapporte à un procédé et à un dispositif de commutation pouvant améliorer la vitesse de débit de transmission de données de liaison descendante. Le procédé selon l'invention consiste en : l'acquisition d'informations de description concernant la qualité de canal d'un canal de commande physique dédié à haut débit de liaison montante (HS-DPCCH) dans une cellule de desserte d'un équipement d'utilisateur (UE) (101) ; la détermination selon laquelle la qualité de canal du HS-DPCCH satisfait à une première condition pré-établie en fonction des informations de description concernant la qualité de canal (102) ; et la commutation de la cellule de desserte de l'UE vers une cellule cible, la qualité de canal du HS-DPCCH de la cellule cible et d'un canal de liaison descendante satisfaisant à une seconde condition pré-établie (103).
PCT/CN2012/087744 2012-12-27 2012-12-27 Procédé et dispositif de commutation WO2014101071A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280002594.9A CN103299681B (zh) 2012-12-27 2012-12-27 切换方法及设备
PCT/CN2012/087744 WO2014101071A1 (fr) 2012-12-27 2012-12-27 Procédé et dispositif de commutation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/087744 WO2014101071A1 (fr) 2012-12-27 2012-12-27 Procédé et dispositif de commutation

Publications (1)

Publication Number Publication Date
WO2014101071A1 true WO2014101071A1 (fr) 2014-07-03

Family

ID=49098418

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/087744 WO2014101071A1 (fr) 2012-12-27 2012-12-27 Procédé et dispositif de commutation

Country Status (2)

Country Link
CN (1) CN103299681B (fr)
WO (1) WO2014101071A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634682B (zh) * 2014-10-27 2019-11-05 南京中兴软件有限责任公司 一种调整调度cqi的方法及装置
CN105813028A (zh) * 2014-12-30 2016-07-27 海能达通信股份有限公司 快速识别主动切换基站的集群通信方法及终端
CN107959556A (zh) * 2017-10-17 2018-04-24 北京松果电子有限公司 信道质量估计方法、装置、设备及存储介质
CN108882320B (zh) * 2018-06-12 2021-03-02 Oppo广东移动通信有限公司 无线通信传输方法、装置、移动终端及计算机可读取存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1790939A (zh) * 2004-12-13 2006-06-21 华为技术有限公司 上行高速专用物理控制信道的功率控制方法
CN101179822A (zh) * 2006-11-07 2008-05-14 华为技术有限公司 一种实现软切换的方法、装置及系统
CN102340369A (zh) * 2010-07-20 2012-02-01 中兴通讯股份有限公司 一种调度控制方法和基站
CN102638861A (zh) * 2011-02-15 2012-08-15 中兴通讯股份有限公司 一种高速下行分组接入系统服务小区选择方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102685837A (zh) * 2011-03-10 2012-09-19 中兴通讯股份有限公司 一种终端切换的方法及系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1790939A (zh) * 2004-12-13 2006-06-21 华为技术有限公司 上行高速专用物理控制信道的功率控制方法
CN101179822A (zh) * 2006-11-07 2008-05-14 华为技术有限公司 一种实现软切换的方法、装置及系统
CN102340369A (zh) * 2010-07-20 2012-02-01 中兴通讯股份有限公司 一种调度控制方法和基站
CN102638861A (zh) * 2011-02-15 2012-08-15 中兴通讯股份有限公司 一种高速下行分组接入系统服务小区选择方法及装置

Also Published As

Publication number Publication date
CN103299681A (zh) 2013-09-11
CN103299681B (zh) 2017-04-12

Similar Documents

Publication Publication Date Title
KR101375195B1 (ko) 서빙 셀 변경 동안에 타켓 노드 ｂ에 대한 피드백 정보 제공
RU2497312C2 (ru) Способ и устройство переключения
TWI492560B (zh) 上行鏈路分集傳輸之方法及裝置
US10321413B2 (en) System and method for transmit power control with secondary uplink pilot channel
TW201419893A (zh) 在上行鏈路功率限制條件中觸發小區轉移
WO2014110790A1 (fr) Procédé, station de base et équipement utilisateur pour traiter des informations de rétroaction
KR20080111566A (ko) Ｌｔｅ 업링크 및 다운링크에서의 무선 링크 고장 검출 프로시져 및 그 장치
EP2986064B1 (fr) Procédé, station de base, support de stockage informatique pour la mise en oeuvre d'une commande de puissance en boucle intérieure et en boucle fermée
US20130294418A1 (en) Switching Between Remote Radio Heads
WO2013107044A1 (fr) Procédé d'analyse d'une cause de défaillance de liaison, et procédé et dispositif d'optimisation du réseau associés
EP2041992A2 (fr) Équipement d'utilisateur et noeud de communication transmettant des données dans un système de communication
US20210006963A1 (en) System and method of resource allocation
WO2014071620A1 (fr) Procédé pour un transfert plus souple de liaison montante, ue et station de base
WO2014101071A1 (fr) Procédé et dispositif de commutation
WO2010083646A1 (fr) Procédé, système et dispositif pour améliorer la capacité de couverture en liaison montante de l'équipement utilisateur
WO2021143493A1 (fr) Procédé et appareil pour déterminer une porteuse et support d'enregistrement lisible
WO2015139168A1 (fr) Procédé, dispositif et équipement de commande de puissance de la boucle extérieure
US9414407B2 (en) Enhanced scheduling information transmission in a heterogeneous network
US9735930B2 (en) System and method using a secondary network node for handling packet retransmissions
US20220086673A1 (en) Radio measurement collection method and user equipment
WO2021016805A1 (fr) Procédé et appareil de sélection de ressources
CN116827500A (zh) 由用户设备执行的方法以及用户设备
US20130272222A1 (en) Scheduling Based on UE Probing
CN116897573A (zh) 用于蜂窝通信和装置到装置通信的资源分配
WO2010105533A1 (fr) Procédé et système de décision de compromis adaptés pour transmettre un service mbms (multimedia broadcast multicast service)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12890905

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12890905

Country of ref document: EP

Kind code of ref document: A1