WO2014101071A1 - Switching method and device - Google Patents
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- 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
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- dpcch
- channel quality
- ack
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- 238000004891 communication Methods 0.000 description 9
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- 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.
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Abstract
Provided are a switching method and device, which can improve the throughput rate of downlink data transmission. The method comprises: acquiring description information about channel quality of an uplink high speed dedicated physical control channel (HS-DPCCH) in a serving cell of a user equipment (UE) (101); determining that the channel quality of the HS-DPCCH meets a first preset condition according to the description information about channel quality (102); and switching the serving cell of the UE to a target cell, the channel quality of the HS-DPCCH of the target cell and a downlink channel meeting a second preset condition (103).
Description
切换方法及设备 技术领域 Switching method and device
本发明涉及通信技术领域, 尤其涉及一种切换方法及设备。 背景技术 The present invention relates to the field of communications technologies, and in particular, to a handover method and device. Background technique
在高速下行分组接入 ( High Speed Downlink Packet Access , HSDPA ) 技术中, 基站在一个传输时间间隔 ( Transmission Time Interval , TTI )中,通过下行高速共享控制信道(HS-SCCH , High speed shared control channel)向 UE发送信令信息, 该信令信息可以包括用 户设备 ( UE ) 标识、 发送给所述 UE 的数据块大小, 采用的调制方 案等, 并通过高速物理下行共享信道(High-Speed Physical Downlink Shared Channel , HS-PDSCH)向 UE发送所述数据块。 UE在每个 TTI 中侦察所述 HS-SCCH发送的 UE标识, 以便于判断在该 TTI中对应 的 HS-PDSCH上发送的数据块是否属于自 己, 如果是, 则开始接收 所述 HS-PDSCH上发送的数据块, 如果不是, 则不做响应。 In the High Speed Downlink Packet Access (HSDPA) technology, 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. 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.
之后, 如果 UE 成功接收了所述数据块, 则通过上行高速专用 物理控制信道 ( Uplink high speed dedicated physical control channel HS-DPCCH ) 反馈 ACK 给基站, 以便于基站继续发送下一个数据 块,如果 UE接收所述数据块失败了,则通过 HS-DPCCH反馈 NACK 给基站, 以便于基站重新发送所述数据块。 UE还可以对 HS-PDSCH 的信道质量进行测量, 得到信道质量指示 ( Channel Quality Indicator ,CQI ) , 并将该 CQI通过 HS-DPCCH上报给基站。 Then, if the UE successfully receives the data block, 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.
如果 UE 从当前的服务小区向另一个小区移动, 移动到这两个 小区的交叉区域时, UE从上述两个小区接收到的下行信号质量可能 相当, 此时不会触发服务小区的切换。 If the UE moves from the current serving cell to another cell and moves to the intersection of the two cells, 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.
然而, 此时 UE 到服务小区的上行接收信噪比却可能比非服务 小区要差很多, 例如服务小区比非服务小区的导频发射功率大 6dB 以上, 或者非服务小区比服务小区的接收天线数多 3 条 (例如服务
小区为 1条天线, 非服务小区为 4条天线), 或者服务小区的上行宽 带接收总功率 ( Received Total Wideband Power , RTWP ) 比非服务 小区高 6dB 以上等场景。 此时的后果是, 上行服务小区和非服务小 区出现 "长短腿" 效应, 即服务小区的上行 DPCCH信噪比很差, 只 在服务小区解调的 HS-DPCCH 接收信噪比也很低, 故 UE 通过 HS-DPCCH向服务小区中的基站反馈 ACK (或者 NACK或者 CQI ) 容易出现解调失败,进而导致下行数据传输延迟、甚至无数据传输, 降低了下行数据传输吞吐率。 However, 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. The consequence of this is that 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.
发明内容 Summary of the invention
本发明提供一种切换方法及设备, 可以提高下行数据传输吞吐 率。 The present invention provides a handover method and apparatus, which can improve downlink data transmission throughput.
为了达到上述发明目的, 本发明采用如下技术方案: In order to achieve the above object, the present invention adopts the following technical solutions:
第一方面, 提供一种切换方法, 包括: In a first aspect, a handover method is provided, including:
获取用户设备 UE 的服务小区中上行高速专用物理控制信道 HS-DPCCH的信道质量描述信息; Obtaining channel quality description information of the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell of the user equipment UE;
根据所述信道质量描述信息确定所述 HS-DPCCH的信道质量满 足第一预设条件; Determining, according to the channel quality description information, that a channel quality of the HS-DPCCH meets a first preset condition;
将所述 UE 的服务小区切换为 目 标小区, 所述目 标小区的 HS-DPCCH的信道质量和下行信道满足第二预设条件。 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.
结合第一方面, 在第一方面的第一种实现方式中, 所述获取用 户设备 UE的服务小区中 HS-DPCCH的信道质量描述信息具体包括: 通过接收基站发送的正确应答 ACK/否定应答 NACK 的漏检测 概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信息, 其中, 所述 ACK/N ACK的漏检测概率为所述基站在预设时间段内从 所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所述预 设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度信 息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时间间 隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据 块;
或者, 通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI 的不可靠概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描 述信息。 With reference to the first aspect, in a first implementation manner of the first aspect, 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 receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
结合第一方面的第一种实现方式, 在第一方面的第二种实现方 式中, 当通过接收基站发送的正确应答 ACK/否定应答 NACK 的漏 检测概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信 息时, 所述根据所述信道质量描述信息确定所述 HS-DPCCH的信道 质量满足第一预设条件具体包括: With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, 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:
判断所述 ACK/NACK的漏检测概率是否大于第一预设门限,当 所述 ACK/NACK 的漏检测概率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件; Determining whether the leakage detection probability of the ACK/NACK is greater than the first preset threshold, and determining that the channel quality of the HS-DPCCH meets the first when the leakage detection probability of the ACK/NACK is greater than the first preset threshold Preset condition
或者, 当通过接收基站发送的 HS-DPCCH的信道质量指示 CQI 的不可靠概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描 述信息时, 所述根据所述信道质量描述信息确定所述 HS-DPCCH的 信道质量满足第一预设条件具体包括: Or the determining, according to the channel quality description information, the channel quality description information of the HS-DPCCH in the serving cell of the UE when the channel quality description information of the HS-DPCCH in the serving cell of the UE is obtained by receiving an unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station The channel quality of the HS-DPCCH meets the first preset condition, and specifically includes:
判断所述 HS-DPCCH的 CQI的不可靠概率是否大于第二预设门 限, 当所述 HS-DPCCH 的 CQI 的不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件。 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.
结合第一方面, 在第一方面的第三种实现方式中, 所述获取用 户设备 UE的服务小区中 HS-DPCCH的信道质量描述信息具体包括: 通过接收基站发送的直接表示所述 HS-DPCCH的信道质量满足 所述第一预设条件的信道质量描述信息, 所述信道质量描述信息由 所述基站在 ACK/NACK 的漏检测概率大于第一预设门限时, 或者 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; With reference to the first aspect, in a third implementation manner of the first aspect, 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;
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送
数据块。 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.
第二方面, 提供一种切换设备, 包括: In a second aspect, a switching device is provided, including:
获取模块, 用于获取用户设备 UE 的服务小区中上行高速专用 物理控制信道 HS-DPCCH的信道质量描述信息; 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;
确 定模块 , 用 于根据所述信道质量描述信息确 定所述 a determining module, configured to determine the content according to the channel quality description information
HS-DPCCH的信道质量满足第一预设条件; The channel quality of the HS-DPCCH satisfies the first preset condition;
切换模块, 用于当所述确定模块确定所述信道质量满足所述第 一预设条件时, 将所述 UE 的服务小区切换为目标小区, 所述目标 小区的 HS-DPCCH的信道质量和下行信道满足第二预设条件。 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.
结合第二方面, 在第二方面的第一种实现方式中, 所述获取模 块, 具体用于通过接收基站发送的正确应答 ACK/否定应答 NACK 的漏检测概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描 述信息, 其中, 所述 ACK/NACK的漏检测概率为所述基站在预设时 间段内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站 在所述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发 送调度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传 输时间间隔 TTI通过高速物理下行共享信道 HS-PDSCH 向所述 UE 发送数据块; With reference to the second aspect, in a first implementation manner of the second aspect, 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;
或者,所述获取模块,具体用于通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI 的不可靠概率获取所述 UE 的服务小区中 HS-DPCCH的信道质量描述信息。 Or 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.
结合第二方面的第一种实现方式, 在第二方面的第二种实现方 式中, 所述确定模块, 具体用于判断所述 ACK/NACK的漏检测概率 是否大于第一预设门限, 并当所述 ACK/NACK的漏检测概率大于第 一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设 条件; With reference to the first implementation manner of the second aspect, in a second implementation manner of the second aspect, 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;
或者, 所述确定模块, 具体用于判断所述 HS-DPCCH 的 CQI 的不可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的 不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量
满足所述第一预设条件。 Or 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.
结合第二方面, 在第二方面的第三种实现方式中, 所述获取模 块, 具体用于通过接收基站发送的直接表示所述 HS-DPCCH的信道 质量满足所述第一预设条件的信道质量描述信息, 所述信道质量描 述信息由所述基站在 ACK/NACK 的漏检测概率大于第一预设门限 时,或者 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; 其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块。 With reference to the second aspect, in a third implementation manner of the second aspect, 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 ratio of the number of times the shared control channel HS-SCCH sends the scheduling information to the UE. 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.
第三方面, 提供一种切换设备, 包括: In a third aspect, a switching device is provided, including:
接收器, 用于获取用户设备 UE 的服务小区中上行高速专用物 理控制信道 HS-DPCCH的信道质量描述信息; 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;
处理器, 用于根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足第一预设条件; 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;
所述处理器, 还用于当确定所述信道质量满足所述第一预设条 件时, 将所述 UE 的服务小区切换为 目标小区, 所述目标小区的 HS-DPCCH的信道质量和下行信道满足第二预设条件。 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.
结合第三方面,在第三方面的第一种实现方式中,所述接收器, 具体用于通过接收基站发送的正确应答 ACK/否定应答 NACK 的漏 检测概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信 息, 其中, 所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块;
或者, 所述接收器, 具体用于通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI 的不可靠概率获取所述 UE 的服务小区中 HS-DPCCH的信道质量描述信息。 With reference to the third aspect, in a first implementation manner of the third aspect, 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. Transmitting a data block to the UE; Or 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.
结合第三方面的第一种实现方式, 在第三方面的第二种实现方 式中, 所述处理器, 具体用于判断所述 ACK/NACK的漏检测概率是 否大于第一预设门限, 并当所述 ACK/NACK的漏检测概率大于第一 预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条 件; With reference to the first implementation manner of the third aspect, in a second implementation manner of the third aspect, 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;
或者, 所述处理器, 具体用于判断所述 HS-DPCCH的 CQI的不 可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的不可 靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量满足 所述第一预设条件。 Or 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.
结合第三方面,在第三方面的第三种实现方式中,所述接收器, 具体用于通过接收基站发送的直接表示所述 HS-DPCCH的信道质量 满足所述第一预设条件的信道质量描述信息, 所述信道质量描述信 息由所述基站在 ACK/NACK的漏检测概率大于第一预设门限时, 或 者 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; With reference to the third aspect, in a third implementation manner of the third aspect, 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;
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块。 通过上述技术方案, 可以获取 UE的服务小区中 HS-DPCCH的 信道质量描述信息, 当根据所述信道质量描述信息确定所述 HS-DPCCH的信道质量满足所述第一预设条件 (即所述 HS-DPCCH 的信道质量较差) 时, 将所述 UE 的服务小区切换为目标小区。 由 于所述目标小区的 HS-DPCCH的信道质量和下行信道满足第二预设
条件, 即所述目标小区的 HS-DPCCH的信道质量和下行信道的信道 质量均能满足 UE的通信需求, 因而可以保证 UE下行数据的传输吞 吐率。 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.
特别是在出现上行信道质量长短腿情形 ( 即服务小区上行信道 质量较差, 下行信道质量较好) 时, 例如, 当 UE 从服务小区向另 一个小 区移动, 移动到这两个小 区的交叉区域时, 服务小区 中 HS-DPCCH 的信道质量变差, 但 UE从所述两个小区接收到的下行 信号质量相当时, 采用本发明实施例提供的方法也可以将服务小区 切换到目标小区。 与现有技术相比, 导致下行数据传输吞吐率较低 相比, 本发明实施例可以提高下行数据传输吞吐率。 In particular, when there is a situation in which 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), for example, when 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. However, when the quality of the downlink signal received by the UE is equal, the serving cell can be handed over to the target cell by using the method provided by the embodiment of the present invention. Compared with the prior art, 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.
附图说明 对实施例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地 , 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附 图。 BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in the drawings Other drawings may be obtained from these drawings without paying creative labor.
图 1为本发明实施例提供一种切换方法的流程图; FIG. 1 is a flowchart of a handover method according to an embodiment of the present invention;
图 2为本发明实施例提供一种切换设备的一种结构图; 2 is a structural diagram of a switching device according to an embodiment of the present invention;
图 3为本发明实施例提供一种切换设备的另一种结构图。 FIG. 3 is another structural diagram of a switching device according to an embodiment of the present invention.
具体实施方式 detailed description
下面将结合本发明实施例中的附图, 对本发明实施例中的技术 方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明 一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本 领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他 实施例, 都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
本发明实施例提供一种切换方法, 如果 UE 从当前的服务小区 向目标小区移动, 移动到这两个小区的交叉区域时, UE从上述两个 小区接收到的下行信号质量相当, 亦即下行信道的信道质量均比较 好, 但是服务小区上行信道的信道质量较差时, 可以实现将 UE 的
服务小区切换到目标小区, 该目标小区的上行信道和下行信道的信 道质量均较好, 可以满足 UE的通信需求。 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.
如图 1 所示, 详细介绍一种切换方法, 该方法的执行主体为无 线网络控制器 ( Radio Network Controller , RNC ) , 该方法包括: 101、 RNC获取用户设备 UE的服务小区中上行高速专用物理控 制信道 HS-DPCCH的信道质量描述信息。 As shown in FIG. 1, a handover method is described in detail. 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. Channel quality description information of the control channel HS-DPCCH.
本步骤可以采用如下几种方式实现: This step can be implemented in the following ways:
方式一、 RNC 通过接收基站发送的正确应答 ACK/否定应答 NACK的漏检测概率获取所述 UE的服务小区中 HS-DPCCH的信道 质量描述信息。 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.
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块。 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.
例如,基站可以在预设时间段内通过 HS-SCCH向 UE发送调度 信息, 如果 UE在所述调度信息指示的预设 TTI 中从 HS-PDSCH成 功接收了数据块, 则在所述预设 TTI中会通过 HS-DPCCH向基站发 送 ACK , 如果在所述预设 TTI 中从 HS-PDSCH接收数据块失败了, 则在所述预设 TTI中会通过 HS-DPCCH向基站发送 NACK。 For example, 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.
基站可以统计在所述预设时间段内从所述 HS-DPCCH 接收到 ACK/NACK的个数和在所述预设时间段内通过 HS-SCCH向 UE发送 调度信息的次数, 其中, 在所述预设时间段内通过 HS-SCCH向 UE 发送调度信息的次数与在所述预设时间段内从所述 HS-DPCCH接收 到 ACK/NACK 的个数之差即为在所述预设时间段内 从所述 HS-DPCCH未接收到 ACK/NACK的个数。 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.
之后, 基站计算所述 ACK/NACK的漏检测概率, 并可以周期性 的将所述 ACK/NACK的漏检测概率发送给所述 RNC。
方式二、 RNC通过接收基站发送的 HS-DPCCH的信道质量指示 CQI的不可靠概率获取所述 UE的服务小区中 HS-DPCCH的信道质 量描述信息。 Thereafter, 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.
其中, 所述 HS-DPCCH的 CQI的不可靠概率的计算过程为: 基 站每隔一定周期 (例如 2ms或者 4ms ) 可以对 HS-DPCCH进行信道 质量测量, 得到 HS-DPCCH的 CQI值, 并采用译码打分技术判断所 述 HS-DPCCH的 CQI值是否可靠。 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.
之后, 所述基站统计多个周期中 CQI可靠性判断结果为不可靠 的次数, 所述 CQI可靠性判断结果为不可靠的次数与 CQI可靠性判 断的总次数的比值即为所述 HS-DPCCH的 CQI的不可靠概率。 Afterwards, 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.
所述基站可以周期性的将所述 HS-DPCCH的 CQI的不可靠概率 发送给基站。 The base station may periodically send an unreliable probability of the CQI of the HS-DPCCH to the base station.
方式三、 RNC通过接收基站发送的直接表示所述 HS-DPCCH的 信道质量满足所述第一预设条件的信道质量描述信息。 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.
例如, 基站首先计算 ACK/NACK的漏检测概率, 具体计算方法 参见上述方式一中的描述。 之后, 所述基站判断所述 ACK/NACK的 漏检测概率是否大于第一预设门限,如果所述 ACK/NACK的漏检测 概率大于第一预设门限时, 说明所述 HS-DPCCH的信道质量满足第 一预设条件 ( 亦即信道质量较差), 则基站向 RNC 发送所述信道质 量描述信息。 For example, the base station first calculates the leak detection probability of the ACK/NACK. For the specific calculation method, refer to the description in the foregoing mode 1. After 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. After the first preset condition is met (that is, the channel quality is poor), the base station sends the channel quality description information to the RNC.
或者, 又如, 基站首先计算 HS-DPCCH的 CQI的不可靠概率, 具体计算方法参见上述方式二中的描述。 之后, 所述基站判断 Or, for example, the base station first calculates an unreliable probability of the CQI of the HS-DPCCH. For the specific calculation method, refer to the description in the foregoing mode 2. After that, the base station determines
HS-DPCCH的 CQI的不可靠概率是否大于第二预设门限, 如果所述 HS-DPCCH 的 CQI 的不可靠概率大于第二预设门限时, 说明所述 HS-DPCCH的信道质量满足第一预设条件( 亦即信道质量较差 ) , 则 基站向 RNC发送所述信道质量描述信息。 If the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold, if the unreliable probability of the CQI of the HS-DPCCH is greater than the second preset threshold, the channel quality of the HS-DPCCH satisfies the first pre-predetermined If the condition is set (that is, the channel quality is poor), the base station sends the channel quality description information to the RNC.
需要说明的是, 所述第一预设门限和第二预设 ί Ί限的取值范围 例如可以为 20%-80%。 如果该第一预设门限或者第二预设门限设置 的过小, 则可能会导致基站频繁地向 RNC发送所述信道质量描述信
息, 容易造成信道资源的浪费, 同时也会造成 RNC容易触发服务小 区变更, 而更多的服务小区变更可能引起信令掉话, 更早的服务小 区变更可能会因为非服务小区的下行质量不够好而引起 HSDPA 吞 吐率下降。 如果该第一预设门限或者第二预设门限设置的过大, 则 可能会导致基站对 HS-DPCCH的信道质量的判断比较迟钝, 更晚的 服务小区变更会造成 HSDPA吞吐率严重下降甚至掉底( 即吞吐率为 零) 的问题。 因而, 实际应用时, 该第一预设门限或者第二预设门 限的具体取值需要合理解决上述两个问题。 It should be noted that 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. If the first preset threshold or the second preset threshold is set too large, 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.
102、 所述 RNC 根据所述信道质量描述信息确 定所述 HS-DPCCH的信道质量满足所述第一预设条件。 102. The RNC determines, according to the channel quality description information, that a channel quality of the HS-DPCCH meets the first preset condition.
其中, 当步骤 101 采用方式一时, 本步骤具体执行如下: 判断 所述 ACK/NACK 的漏检测概率是否大于第一预设门限, 当所述 ACK/NACK 的 漏检测概率 大于第 一预设 门 限时 , 确 定所述 HS-DPCCH的信道质量满足所述第一预设条件( 亦即信道质量较差)。 When the step 101 is used in the first mode, the step 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).
当步骤 101采用方式二时,本步骤具体执行如下:判断所述 CQI 的不可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的 不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量 满足所述第一预设条件 ( 亦即信道质量较差)。 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).
当步骤 101 采用方式三时, 本步骤可以直接根据所述信道质量 描述信息确定出所述 HS-DPCCH的信道质量满足所述第一预设条件 ( 亦即信道质量较差)。 When step 101 is used in mode 3, 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).
103、 所述 RNC将所述 UE 的服务小区切换为目标小区, 所述 目标小区的 HS-DPCCH 的信道质量和下行信道满足第二预设条件, 即所述目标小区的 HS-DPCCH的信道质量和下行信道的信道质量均 能满足 UE的通信需求。 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.
其中, 在 HSDPA 技术中, 上行信道为 HS-DPCCH , 下行信道 包括 HS-SCCH和 HS-PDSCH。所述 RNC选择目标小区的过程如下: 在下行信道方向上, RNC可以向 UE发送小区的总接收带宽内 单位功率语密度上的码片级接收能量 ( Received energy per chip
divided by the power density in the band , Ec/NO ) (或者接收信号码 功率 ( Received Signal Code Power , RSCP ) ) 测量指示信息, UE接 收所述 Ec/NO (或者 RSCP ) 测量指示信息, 开始进行小区的 Ec/NO (或者 RSCP )测量,并将测量得到的各个小区的 Ec/N0(或者 RSCP ) 的测量值通过基站发送给 RNC。 RNC接收到各个小区的 Ec/NO (或 者 RSCP ) 的测量值后, 比较各个小区 Ec/NO (或者 RSCP ) 的测量 值是否大于第三门限, 如果 Ec/NO (或者 RSCP ) 的测量值大于第三 门限, 说明该小区中的 HS-SCCH和 HS-PDSCH (下行信道)质量很 好。 Among them, in the HSDPA technology, the uplink channel is HS-DPCCH, and 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. 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.
在上行信道方向上, 基站会进行小区信号干扰比 ( Signal to Interference Ratio , SIR ) 测量, 如果得到的小区 SIR测量值与预设 SIR 目标值相差小于第四预设门限时(例如 -3dB ) , 向 RNC发送 SIR 错误事件 F报告 A(SIR error EVENT F Report A) , 否则, 如果得到 的小区 SIR测量值与预设 SIR 目标值相差不小于第四预设门限时, 基站向 RNC发送 SIR错误事件 F报告 B (SIR error EVENT F Report B)。 基站向 RNC发送 SIR error EVENT F Report B说明该小区的 DPCCH上行信道很好, 故 HS-DPCCH (上行信道) 的信道质量也很 好。 In the direction of the uplink channel, 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.
之后, RNC选择 Ec/NO (或者 RSCP )的测量值大于第三门限, 并且从该小区接收到 SIR error EVENT F Report B的小区作为目标小 区。 Thereafter, 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.
本发明实施例中, RNC可以获取 UE的服务小区中 HS-DPCCH 的信道质量描述信息, 当根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足所述第一预设条件时, 将所述 UE 的服 务小区切换为目标小区。 由于所述目标小区的 HS-DPCCH的信道质 量和下行信道满足第二预设条件, 亦即所述目标小区的 HS-DPCCH 的信道质量和下行信道的信道质量均能满足 UE 的通信需求, 因而 可以保证 UE下行数据的传输吞吐率。 In the embodiment of the present invention, 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.
特别是在出现上行信道质量长短腿情形 ( 即服务小区上行信道
质量较差, 下行信道质量较好) 时, 例如, 当 UE 从服务小区向另 一个小 区移动, 移动到这两个小 区的交叉区域时, 服务小区 中Especially in the case of the uplink channel quality long leg (ie, the serving cell uplink channel) When 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
HS-DPCCH 的信道质量变差, 但 UE从所述两个小区接收到的下行 信号质量相当时, RNC采用本发明实施例提供的方法也可以将服务 小区切换到目标小区。 与现有技术中当 UE 从服务小区向另一个小 区移动, 移动到这两个小区的交叉区域时, 服务小区中 HS-DPCCH 的信道质量变差, 但 UE 从所述两个小区接收到的下行信号质量相 当时, 无法触发服务小区的切换, 导致下行数据传输吞吐率较低相 比, 本发明实施例可以提高下行数据传输吞吐率。 The channel quality of the HS-DPCCH is degraded. However, when the quality of the downlink signals received by the UE from the two cells is equal, the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention. In the prior art, when the UE moves from the serving cell to another cell and moves to the intersection area of the two cells, the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells. When 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.
如图 2所示, 本发明实施例还提供一种切换设备, 该设备具体 为 RNC , 该设备包括: As shown in FIG. 2, an embodiment of the present invention further provides a switching device, where the device is specifically an RNC, and the device includes:
获取模块 21 , 用于获取用户设备 UE的服务小区中上行高速专 用物理控制信道 HS-DPCCH的信道质量描述信息; 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;
确定模块 22 , 用 于根据所述信道质量描述信息确定所述 HS-DPCCH的信道质量满足所述第一预设条件; 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;
切换模块 23 , 用于当所述确定模块 22 确定所述信道质量满足 所述第一预设条件时, 将所述 UE 的服务小区切换为目标小区, 所 述目标小区的 HS-DPCCH的信道质量和下行信道满足第二预设条件, 亦即所述目标小区的 HS-DPCCH的信道质量和下行信道的信道质量 均能满足 UE的通信需求。 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.
所述切换模块的功能实现过程还可以参见上述步骤 103 的描述。 本发明实施例中, RNC可以获取 UE的服务小区中 HS-DPCCH 的信道质量描述信息, 当根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足所述第 一预设条件 ( 亦 即所述 HS-DPCCH 的信道质量较差) 时, 将所述 UE 的服务小区切换为目 标小区。 由于所述目标小区的 HS-DPCCH的信道质量和下行信道满 足第二预设条件, 亦即所述目标小区的 HS-DPCCH的信道质量和下 行信道的信道质量均能满足 UE的通信需求, 因而可以保证 UE下行 数据的传输吞吐率。
特别是在出现上行信道质量长短腿情形 ( 即服务小区上行信道 质量较差, 下行信道质量较好) 时, 例如, 当 UE 从服务小区向另 一个小 区移动, 移动到这两个小 区的交叉区域时, 服务小区 中For the function implementation process of the switching module, refer to the description of step 103 above. In the embodiment of the present invention, 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. In particular, when there is a situation in which 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), for example, when the UE moves from the serving cell to another cell, it moves to the intersection area of the two cells. In the service area
HS-DPCCH 的信道质量变差, 但 UE从所述两个小区接收到的下行 信号质量相当时, RNC采用本发明实施例提供的方法也可以将服务 小区切换到目标小区。 与现有技术中当 UE 从服务小区向另一个小 区移动, 移动到这两个小区的交叉区域时, 服务小区中 HS-DPCCH 的信道质量变差, 但 UE 从所述两个小区接收到的下行信号质量相 当时, 无法触发服务小区的切换, 导致下行数据传输吞吐率较低相 比, 本发明实施例可以提高下行数据传输吞吐率。 The channel quality of the HS-DPCCH is degraded. However, when the quality of the downlink signals received by the UE from the two cells is equal, the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention. In the prior art, when the UE moves from the serving cell to another cell and moves to the intersection area of the two cells, the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells. When 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.
进一步地, 所述获取模块 21 , 具体用于通过接收基站发送的正 确应答 ACK/否定应答 NACK的漏检测概率获取所述 UE的服务小区 中 HS-DPCCH的信道质量描述信息。 Further, 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.
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块。 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.
其中, ACK/NACK的漏检测概率的具体计算方法还可以参见上 述步骤 101 中方式一的描述。 For the specific calculation method of the ACK/NACK leakage detection probability, refer to the description of the mode one in the above step 101.
相应地, 所述确定模块 22 , 具体用于判断所述 ACK/NACK 的 漏检测概率是否大于第一预设门限, 并当所述 ACK/NACK的漏检测 概率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所 述第一预设条件。 Correspondingly, 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.
进一步地, 或者, 所述获取模块 21 , 具体用于通过接收基站发 送的 HS-DPCCH的信道质量指示 CQI的不可靠概率获取所述 UE的 服务小区中 HS-DPCCH的信道质量描述信息。 Further, 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.
其中, HS-DPCCH的 CQI的不可靠概率的具体计算方法还可以
参见上述步骤 101 中方式二的描述。 Among them, 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.
相应地, 所述确定模块 22 , 具体用于判断所述 HS-DPCCH 的 CQI的不可靠概率是否大于第二预设门限,当所述 HS-DPCCH的 CQI 的不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质 量满足所述第一预设条件。 Correspondingly, 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.
进一步地, 所述获取模块 21 , 具体用于通过接收基站发送的直 接表示所述 HS-DPCCH的信道质量满足所述第一预设条件的信道质 量描述信息, 所述信道质量描述信息由所述基站在 ACK/NACK的漏 检测概率大于第一预设门限时, 或者 HS-DPCCH的 CQI的不可靠概 率大于第二预设门限时发送; Further, 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;
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块; 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;
相应地, 所述确定模块具体可以根据所述信道质量描述信息直 接确定所述 HS-DPCCH的信道质量满足所述第一预设条件。 如图 3所示, 本发明实施例提供一种切换设备, 该设备具体为 RNC , 包括: 接收器 31 , 处理器 32、 存储器 33、 总线 3000和驱动 电路 3001。 Correspondingly, 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. As shown in FIG. 3, an embodiment of the present invention provides 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.
其中, 接收器 31 , 用于获取用户设备 UE的服务小区中上行高 速专用物理控制信道 HS-DPCCH的信道质量描述信息; 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.
处理器 32 , 用 于根据所述信道质量描述信息确定所述 HS-DPCCH的信道质量满足第一预设条件; 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;
所述处理器 32 , 还用于当确定所述信道质量满足所述第一预设 条件时, 将所述 UE 的服务小区切换为目标小区, 所述目标小区的 HS-DPCCH 的信道质量和下行信道满足第二预设条件, 亦即所述目
标小区的 HS-DPCCH 的信道质量和下行信道的信道质量均能满足 UE的通信需求。 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.
所述处理器 32的功能实现过程还可以参见上述步骤 102和 103 的描述。 The function implementation process of the processor 32 can also be referred to the description of steps 102 and 103 above.
需要说明的是, 接收器 3 1 可以耦合到天线。 It should be noted that the receiver 3 1 can be coupled to the antenna.
本实施例在具体实现中,存储器 33至少包括如下一个或者多个 内存设备, 一个只读存储器、 一个随机存取存储器或者一个非易失 行随机存取存储器, 存储器为处理器提供指令和数据。 In a specific implementation, 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.
其中, 所述处理器可能是一种集成电路芯片, 具有信号的处理 能力。 在实现过程中, 上述方法的各步骤可以通过处理器中的硬件 的集成逻辑电路或者软件形式的指令完成。 这些指令可以通过其中 的处理器以配合实现及控制, 用于执行本发明实施例揭示的方法。 上述处理器还可以是通用处理器、 数字信号处理器 ( Digital Signal Processing , DSP )、 专用集成电路 ( application specific integrated circuit )、现成可编程门阵列 ( Field Programmable Gate Array , FPGA ) 或者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件 组件。 Wherein, the processor may be an integrated circuit chip with signal processing capability. In the implementation process, 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.
其中, 上述通用处理器可以是微处理器或者该处理器也可以是 任何常规的处理器, 解码器等。 结合本发明实施例所公开的方法的 步骤可以直接体现为硬件处理器执行完成, 或者用处理器中的硬件 及软件模块组合执行完成。 软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存 器等本领域成熟的存储介质中。 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.
其中, 驱动电路 3001 , 用于为 RNC 中的各个硬件提供驱动使 得各个硬件能够正常工作。 The driving circuit 3001 is used to provide driving for each hardware in the RNC so that each hardware can work normally.
另外, RNC 的各个硬件组件通过总线系统 3000耦合在一起, 其中总线系统 3000除包括数据总线之外, 还包括电源总线、 控制总 线和状态信号总线。 但是为了清楚说明起 , 在图 3 中将各种总线都 标为总线系统 3000。
本发明实施例中, RNC可以获取 UE的服务小区中 HS-DPCCH 的信道质量描述信息, 当根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足所述第 一预设条件 ( 亦 即所述 HS-DPCCH 的信道质量较差) 时, 将所述 UE 的服务小区切换为目 标小区。 由于所述目标小区的 HS-DPCCH的信道质量和下行信道满 足第二预设条件, 亦即所述目标小区的 HS-DPCCH的信道质量和下 行信道的信道质量均能满足 UE的通信需求, 因而可以保证 UE下行 数据的传输吞吐率。 In addition, 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. However, for clarity of description, various buses are labeled as the bus system 3000 in FIG. In the embodiment of the present invention, 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.
特别是在出现上行信道质量长短腿情形 ( 即服务小区上行信道 质量较差, 下行信道质量较好) 时, 例如, 当 UE 从服务小区向另 一个小 区移动, 移动到这两个小 区的交叉区域时, 服务小区 中 HS-DPCCH 的信道质量变差, 但 UE从所述两个小区接收到的下行 信号质量相当时, RNC采用本发明实施例提供的方法也可以将服务 小区切换到目标小区。 与现有技术中当 UE 从服务小区向另一个小 区移动, 移动到这两个小区的交叉区域时, 服务小区中 HS-DPCCH 的信道质量变差, 但 UE 从所述两个小区接收到的下行信号质量相 当时, 无法触发服务小区的切换, 导致下行数据传输吞吐率较低相 比, 本发明实施例可以提高下行数据传输吞吐率。 In particular, when there is a situation in which 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), for example, when 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. However, when the quality of the downlink signal received by the UE is equal, the RNC can also switch the serving cell to the target cell by using the method provided by the embodiment of the present invention. In the prior art, when the UE moves from the serving cell to another cell and moves to the intersection area of the two cells, the channel quality of the HS-DPCCH in the serving cell deteriorates, but the UE receives from the two cells. When 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.
进一步地, 所述接收器 31 , 具体用于通过接收基站发送的正确 应答 ACK/否定应答 NACK的漏检测概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信息。 Further, 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.
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块。 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.
其中, ACK/NACK的漏检测概率的具体计算方法还可以参见上 述步骤 101 中方式一的描述。
相应地, 所述处理器 32 , 具体用于判断所述 ACK/NACK 的漏 检测概率是否大于第一预设门限, 并当所述 ACK/NACK的漏检测概 率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述 第一预设条件; For the specific calculation method of the ACK/NACK leakage detection probability, refer to the description of the mode one in the above step 101. Correspondingly, 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;
进一步地, 或者, 所述接收器 31 , 具体用于通过接收基站发送 的 HS-DPCCH的信道质量指示 CQI的不可靠概率获取所述 UE的服 务小区中 HS-DPCCH的信道质量描述信息。 Further, 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.
其中, HS-DPCCH的 CQI的不可靠概率的具体计算方法还可以 参见上述步骤 101 中方式二的描述。 For the specific calculation method of the unreliable probability of the CQI of the HS-DPCCH, refer to the description of the second method in the above step 101.
相应地, 所述处理器 32 , 具体用于判断所述 HS-DPCCH的 CQI 的不可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的 不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量 满足所述第一预设条件。 Correspondingly, 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.
进一步地, 所述接收器 31 , 具体用于通过接收基站发送的直接 表示所述 HS-DPCCH的信道质量满足所述第一预设条件的信道质量 描述信息, 所述信道质量描述信息并由所述基站在 ACK/NACK的漏 检测概率大于第一预设门限时, 或者 HS-DPCCH的 CQI的不可靠概 率大于第二预设门限时发送; Further, 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;
其中,所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH 未接收到 ACK/NACK 的个数与所述基站在所 述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调 度信息的次数的比值, 所述调度信息为通知所述 UE 在预设传输时 间间隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送 数据块; 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;
相应地,所述处理器 32具体可以根据所述信道质量描述信息直 接确定所述 HS-DPCCH的信道质量满足所述第一预设条件。 通过以上的实施方式的描述, 所属领域的技术人员可以清楚地 了解到本发明可借助软件加必需的通用硬件的方式来实现, 当然也
可以通过硬件, 但很多情况下前者是更佳的实施方式。 基于这样的 理解, 本发明的技术方案本质上或者说对现有技术做出贡献的部分 可以以软件产品的形式体现出来, 该计算机软件产品存储在可读取 的存储介质中, 如计算机的软盘, 硬盘或光盘等, 包括若干指令用 以使得一台计算机设备 (可以是个人计算机, 服务器, 或者网络设 备等) 执行本发明各个实施例所述的方法。 Correspondingly, 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. Through the description of the above embodiments, those skilled in the art can clearly understand that 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. Based on such understanding, 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.
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围 并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技 术范围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围 之内。 因此,本发明的保护范围应以所述权利要求的保护范围为准。
The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.
Claims
1、 一种切换方法, 其特征在于, 包括: 1. A switching method, characterized by including:
获取用户设备 UE 的服务小区中上行高速专用物理控制信道 HS-DPCCH的信道质量描述信息; Obtain the channel quality description information of the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell of the user equipment UE;
根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满 足第一预设条件; Determine that the channel quality of the HS-DPCCH meets the first preset condition according to the channel quality description information;
将所述 UE 的服务小区切换为 目 标小区, 所述目 标小区的 HS -DPCCH的信道质量和下行信道满足第二预设条件。 The serving cell of the UE is switched to the target cell, and the channel quality and downlink channel of the HS-DPCCH of the target cell satisfy the second preset condition.
2、 根据权利要求 1 所述的方法, 其特征在于, 所述获取用户设 备 UE的服务小区中 HS-DPCCH的信道质量描述信息具体包括: 2. The method according to claim 1, wherein the obtaining the channel quality description information of the HS-DPCCH in the serving cell of the user equipment UE specifically includes:
通过接收基站发送的正确应答 ACK/否定应答 NACK的漏检测概 率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信息,其中, 所述 ACK/N ACK 的漏检测概率为所述基站在预设时间段内从所述 HS-DPCCH未接收到 ACK/NACK的个数与所述基站在所述预设时间 段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度信息的次 数的比值, 所述调度信息为通知所述 UE在预设传输时间间隔 TTI通 过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据块; The channel quality description information of the HS-DPCCH in the serving cell of the UE is obtained by receiving the missed detection probability of the correct response ACK/negative response NACK sent by the base station, where the missed detection probability of the ACK/N ACK is the base station. The ratio of the number of ACK/NACKs not received from the HS-DPCCH within the preset time period and the number of times the base station sends scheduling information to the UE through the downlink high-speed shared control channel HS-SCCH within the preset time period. , the scheduling information is to notify the UE to send data blocks to the UE through the high-speed physical downlink shared channel HS-PDSCH at the preset transmission time interval TTI;
或者, 通过接收基站发送的 HS-DPCCH的信道质量指示 CQI的 不可靠概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信 息。 Alternatively, obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving the unreliability probability of the channel quality indication CQI of the HS-DPCCH sent by the base station.
3、 根据权利要求 2所述的方法, 其特征在于, 3. The method according to claim 2, characterized in that,
当通过接收基站发送的正确应答 ACK/否定应答 NACK的漏检测 概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述信息时, 所述根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满 足第一预设条件具体包括: When the channel quality description information of the HS-DPCCH in the serving cell of the UE is obtained by receiving the missed detection probability of the correct response ACK/negative response NACK sent by the base station, the HS-DPCCH is determined based on the channel quality description information The channel quality that meets the first preset condition specifically includes:
判断所述 ACK/NACK的漏检测概率是否大于第一预设门限, 当 所述 ACK/NACK 的漏检测概率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件; Determine whether the missed detection probability of the ACK/NACK is greater than a first preset threshold. When the missed detection probability of the ACK/NACK is greater than the first preset threshold, determine that the channel quality of the HS-DPCCH meets the first preset threshold. preset conditions;
或者, 当通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI
的不可靠概率获取所述 UE的服务小区中 HS-DPCCH的信道质量描述 信息时, 所述根据所述信道质量描述信息确定所述 HS-DPCCH 的信 道质量满足第一预设条件具体包括: Or, when receiving the channel quality indicator CQI of HS-DPCCH sent by the base station When obtaining the channel quality description information of HS-DPCCH in the serving cell of the UE with an unreliable probability, determining that the channel quality of the HS-DPCCH satisfies the first preset condition based on the channel quality description information specifically includes:
判断所述 HS-DPCCH的 CQI的不可靠概率是否大于第二预设门 限, 当所述 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件。 Determine whether the unreliability probability of the CQI of the HS-DPCCH is greater than a second preset threshold. When the unreliability probability of the CQI of the HS-DPCCH is greater than the second preset threshold, determine that the channel quality of the HS-DPCCH meets the first preset condition.
4、 根据权利要求 1 所述的方法, 其特征在于, 所述获取用户设 备 UE的服务小区中 HS-DPCCH的信道质量描述信息具体包括: 4. The method according to claim 1, wherein the obtaining the channel quality description information of the HS-DPCCH in the serving cell of the user equipment UE specifically includes:
通过接收基站发送的直接表示所述 HS-DPCCH 的信道质量满足 所述第一预设条件的信道质量描述信息, 所述信道质量描述信息由所 述基站在 ACK/NACK 的漏检测概率大于第一预设门限时, 或者 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; By receiving the channel quality description information sent by the base station that directly indicates that the channel quality of the HS-DPCCH satisfies the first preset condition, the ACK/NACK missed detection probability of the channel quality description information by the base station is greater than the first It is sent when the threshold is preset, or when the unreliability probability of the CQI of HS-DPCCH is greater than the second preset threshold;
其中, 所述 ACK/N ACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH未接收到 ACK/NACK的个数与所述基站在所述 预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度 信息的次数的比值, 所述调度信息为通知所述 UE在预设传输时间间 隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据块。 Wherein, the missed detection probability of the ACK/N ACK is the number of ACK/NACKs that the base station has not received from the HS-DPCCH within the preset time period and the number of ACK/NACKs that the base station has passed through within the preset time period. The ratio of the number of times the downlink shared control channel HS-SCCH sends scheduling information to the UE. The scheduling information is to notify the UE to send data blocks to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI. .
5、 一种切换设备, 其特征在于, 包括: 5. A switching device, characterized by including:
获取模块, 用于获取用户设备 UE的服务小区中上行高速专用物 理控制信道 HS-DPCCH的信道质量描述信息; An acquisition module, used to acquire the channel quality description information of the uplink high-speed dedicated physical control channel HS-DPCCH in the serving cell of the user equipment UE;
确定模块,用于根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足第一预设条件; A determination module configured to determine, according to the channel quality description information, that the channel quality of the HS-DPCCH satisfies the first preset condition;
切换模块,用于当所述确定模块确定所述信道质量满足所述第一 预设条件时, 将所述 UE的服务小区切换为目标小区, 所述目标小区 的 HS-DPCCH的信道质量和下行信道满足第二预设条件。 A switching module, configured to switch the serving cell of the UE to a target cell when the determining module determines that the channel quality satisfies the first preset condition, and the channel quality of the HS-DPCCH of the target cell and the downlink The channel satisfies the second preset condition.
6、 根据权利要求 5所述的设备, 其特征在于, 6. The device according to claim 5, characterized in that,
所述获取模块, 具体用于通过接收基站发送的正确应答 ACK/否 定应答 NACK 的漏检测概率获取所述 UE 的服务小区中 HS-DPCCH 的信道质量描述信息, 其中, 所述 ACK/NACK 的漏检测概率为所述
基站在预设时间段内从所述 HS-DPCCH未接收到 ACK/NACK的个数 与所述基站在所述预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度信息的次数的比值,所述调度信息为通知所 述 UE 在预设传输时间 间 隔 TTI 通过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据块; The acquisition module is specifically configured to obtain the channel quality description information of HS-DPCCH in the serving cell of the UE by receiving the missed detection probability of the correct response ACK/negative response NACK sent by the base station, wherein the missed detection probability of the ACK/NACK The detection probability is The number of ACK/NACKs that the base station has not received from the HS-DPCCH within the preset time period and the number of times the base station has sent scheduling information to the UE through the downlink high-speed shared control channel HS-SCCH within the preset time period. The scheduling information is to notify the UE to send the data block to the UE through the high-speed physical downlink shared channel HS-PDSCH at the preset transmission time interval TTI;
或者, 所述获取模块, 具体用于通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI 的不可靠概率获取所述 UE 的服务小区中 HS-DPCCH的信道质量描述信息。 Alternatively, the obtaining module is specifically configured to obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving the unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
7、 根据权利要求 6所述的设备, 其特征在于, 所述确定模块, 具体用于判断所述 ACK/N ACK的漏检测概率是否大于第一预设门限, 并当所述 ACK/NACK 的漏检测概率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件; 7. The device according to claim 6, characterized in that the determination module is specifically used to determine whether the missed detection probability of the ACK/N ACK is greater than a first preset threshold, and when the ACK/NACK When the missed detection probability is greater than the first preset threshold, it is determined that the channel quality of the HS-DPCCH meets the first preset condition;
或者, 所述确定模块, 具体用于判断所述 HS-DPCCH的 CQI的 不可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的不 可靠概率大于第二预设门限时, 确定所述 HS-DPCCH 的信道质量满 足所述第一预设条件。 Or, the determination module is specifically configured to determine whether the unreliability probability of the CQI of the HS-DPCCH is greater than a second preset threshold. When the unreliability probability of the CQI of the HS-DPCCH is greater than the second preset threshold, It is determined that the channel quality of the HS-DPCCH meets the first preset condition.
8、 根据权利要求 5所述的设备, 其特征在于, 所述获取模块, 具体用于通过接收基站发送的直接表示所述 HS-DPCCH 的信道质量 满足所述第一预设条件的信道质量描述信息, 所述信道质量描述信息 由所述基站在 ACK/NACK的漏检测概率大于第一预设门限时, 或者 HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; 8. The device according to claim 5, wherein the acquisition module is specifically configured to receive a channel quality description sent by a base station that directly indicates that the channel quality of the HS-DPCCH satisfies the first preset condition. Information, the channel quality description information is sent by the base station when the missed detection probability of ACK/NACK is greater than the first preset threshold, or when the unreliability probability of the CQI of HS-DPCCH is greater than the second preset threshold;
其中, 所述 ACK/NACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH未接收到 ACK/NACK的个数与所述基站在所述 预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度 信息的次数的比值, 所述调度信息为通知所述 UE在预设传输时间间 隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据块。 Wherein, the missed detection probability of ACK/NACK is the number of ACK/NACKs that the base station has not received from the HS-DPCCH within the preset time period and the number of downlink passes by the base station within the preset time period. The ratio of the number of times that the high-speed shared control channel HS-SCCH sends scheduling information to the UE. The scheduling information is to notify the UE to send data blocks to the UE through the high-speed physical downlink shared channel HS-PDSCH in the preset transmission time interval TTI.
9、 一种切换设备, 其特征在于, 包括: 9. A switching device, characterized by including:
接收器, 用于获取用户设备 UE的服务小区中上行高速专用物理 控制信道 HS-DPCCH的信道质量描述信息;
处理器, 用于根据所述信道质量描述信息确定所述 HS-DPCCH 的信道质量满足第一预设条件; A receiver, 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; A processor, configured to determine, according to the channel quality description information, that the channel quality of the HS-DPCCH satisfies the first preset condition;
所述处理器,还用于当确定所述信道质量满足所述第一预设条件 时, 将所述 UE 的服务小区切换为 目 标小区, 所述目 标小区的 HS -DPCCH的信道质量和下行信道满足第二预设条件。 The processor is also configured to switch the serving cell of the UE to a target cell when it is determined that the channel quality meets the first preset condition, and the channel quality of the HS-DPCCH of the target cell and the downlink channel The second preset condition is met.
10、 根据权利要求 9所述的设备, 其特征在于, 10. The device according to claim 9, characterized in that,
所述接收器,具体用于,其中通过接收基站发送的正确应答 ACK/ 否定应答 NACK的漏检测概率获取所述 UE的服务小区中 HS-DPCCH 的信道质量描述信息, 所述 ACK/NACK 的漏检测概率为所述基站在 预设时间段内从所述 HS-DPCCH未接收到 ACK/NACK的个数与所述 基站在所述预设时间段内通过下行高速共享控制信道 HS-SCCH 向 UE发送调度信息的次数的比值, 所述调度信息为通知所述 UE 在预 设传输时间间隔 TTI通过高速物理下行共享信道 HS-PDSCH 向所述 UE发送数据块; The receiver is specifically configured to obtain 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 response ACK/negative response NACK sent by the base station, and the missed detection probability of the ACK/NACK The detection probability is the number of ACK/NACKs that the base station has not received from the HS-DPCCH within the preset time period and the number of ACKs/NACKs that the base station sends to the UE through the downlink high-speed shared control channel HS-SCCH within the preset time period. The ratio of the number of times that scheduling information is sent, which is used to notify the UE to send data blocks to the UE through the high-speed physical downlink shared channel HS-PDSCH at the preset transmission time interval TTI;
或者, 所述接收器, 具体用于通过接收基站发送的 HS-DPCCH 的信道质量指示 CQI 的不可靠概率获取所述 UE 的服务小区中 HS-DPCCH的信道质量描述信息。 Or, the receiver is specifically configured to obtain the channel quality description information of the HS-DPCCH in the serving cell of the UE by receiving the unreliable probability of the channel quality indicator CQI of the HS-DPCCH sent by the base station.
11、 根据权利要求 10所述的设备, 其特征在于, 所述处理器, 具体用于判断所述 ACK/NACK 的漏检测概率是否大于第一预设门限, 并当所述 ACK/NACK 的漏检测概率大于第一预设门限时, 确定所述 HS-DPCCH的信道质量满足所述第一预设条件; 11. The device according to claim 10, characterized in that the processor is specifically configured to determine whether the missed detection probability of the ACK/NACK is greater than a first preset threshold, and when the missed detection probability of the ACK/NACK When the detection probability is greater than the first preset threshold, it is determined that the channel quality of the HS-DPCCH meets the first preset condition;
或者, 所述处理器, 具体用于判断所述 HS-DPCCH的 CQI的不 可靠概率是否大于第二预设门限, 当所述 HS-DPCCH的 CQI的不可 靠概率大于第二预设门限时, 确定所述 HS-DPCCH 的信道质量满足 所述第一预设条件。 Or, the processor is specifically configured to determine whether the unreliability probability of the CQI of the HS-DPCCH is greater than a second preset threshold. When the unreliability probability of the CQI of the HS-DPCCH is greater than the second preset threshold, It is determined that the channel quality of the HS-DPCCH meets the first preset condition.
12、 根据权利要求 9所述的设备, 其特征在于, 所述接收器, 具 体用于通过接收基站发送的直接表示所述 HS-DPCCH 的信道质量满 足所述第一预设条件的信道质量描述信息, 所述信道质量描述信息由 所述基站在 ACK/NACK 的漏检测概率大于第一预设门限时, 或者
HS-DPCCH的 CQI的不可靠概率大于第二预设门限时发送; 其中, 所述 ACK/N ACK的漏检测概率为所述基站在预设时间段 内从所述 HS-DPCCH未接收到 ACK/NACK的个数与所述基站在所述 预设时间段内通过下行高速共享控制信道 HS-SCCH向 UE发送调度 信息的次数的比值, 所述调度信息为通知所述 UE在预设传输时间间 隔 TTI通过高速物理下行共享信道 HS-PDSCH向所述 UE发送数据块。
12. The device according to claim 9, wherein the receiver is specifically configured to receive a channel quality description sent by a base station that directly indicates that the channel quality of the HS-DPCCH satisfies the first preset condition. information, the channel quality description information is provided by the base station when the missed detection probability of ACK/NACK is greater than the first preset threshold, or It is sent when the unreliability probability of the CQI of HS-DPCCH is greater than the second preset threshold; wherein, the missed detection probability of ACK/N ACK is when the base station does not receive ACK from the HS-DPCCH within a preset time period. /The ratio of the number of NACKs to the number of times the base station sends scheduling information to the UE through the downlink high-speed shared control channel HS-SCCH within the preset time period. The scheduling information is to notify the UE of the preset transmission time. The interval TTI sends data blocks to the UE through the high-speed physical downlink shared channel HS-PDSCH.
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CN105813028A (en) * | 2014-12-30 | 2016-07-27 | 海能达通信股份有限公司 | Quick-recognition base station active switching trunking communication method and terminal |
CN107959556A (en) * | 2017-10-17 | 2018-04-24 | 北京松果电子有限公司 | Channel quality estimation method, device, equipment and storage medium |
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CN101179822A (en) * | 2006-11-07 | 2008-05-14 | 华为技术有限公司 | Method, device and system for implementing soft switch |
CN102340369A (en) * | 2010-07-20 | 2012-02-01 | 中兴通讯股份有限公司 | Scheduling control method and base station |
CN102638861A (en) * | 2011-02-15 | 2012-08-15 | 中兴通讯股份有限公司 | Method and device for selecting high-speed downlink packet access (HSDPA) system service cell |
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CN1790939A (en) * | 2004-12-13 | 2006-06-21 | 华为技术有限公司 | Power controlling method for uplink high-speed special physical control channel |
CN101179822A (en) * | 2006-11-07 | 2008-05-14 | 华为技术有限公司 | Method, device and system for implementing soft switch |
CN102340369A (en) * | 2010-07-20 | 2012-02-01 | 中兴通讯股份有限公司 | Scheduling control method and base station |
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