WO2010108320A1 - Procédé, appareil et système de transfert dans un système à fréquences multiporteuses - Google Patents

Procédé, appareil et système de transfert dans un système à fréquences multiporteuses Download PDF

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Publication number
WO2010108320A1
WO2010108320A1 PCT/CN2009/071013 CN2009071013W WO2010108320A1 WO 2010108320 A1 WO2010108320 A1 WO 2010108320A1 CN 2009071013 W CN2009071013 W CN 2009071013W WO 2010108320 A1 WO2010108320 A1 WO 2010108320A1
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WIPO (PCT)
Prior art keywords
carrier frequency
cell
frequency
signal quality
measurement report
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PCT/CN2009/071013
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English (en)
Chinese (zh)
Inventor
陈东
马小飞
马洁
陈君
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2009/071013 priority Critical patent/WO2010108320A1/fr
Publication of WO2010108320A1 publication Critical patent/WO2010108320A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a handover method, apparatus and system in a multi-carrier frequency system. Background technique
  • the introduction of the multi-carrier frequency technology can greatly improve the peak rate of uplink and downlink data supported by the High Speed Packet Access (HSPA) technology in the Wideband Code Division Multiple Access (WCDMA) system.
  • HSPA High Speed Packet Access
  • WCDMA Wideband Code Division Multiple Access
  • the user equipment (UE) can be connected to multiple cells working at different carrier frequencies at the same time.
  • the UE can receive high-speed downlink packet connection through multiple cells working on different carrier frequencies.
  • High Speed Downlink Packet Access (HSDPA) data and High Speed Uplink Packet Access (HSUPA) data are examples of High Speed Downlink Packet Access (HSDPA) data.
  • the dual-cell HSDPA Dual Cell-HSDPA
  • the dual-cell HSDPA includes a pair of cells with the same coverage area.
  • the cell operating at the primary carrier frequency is the primary carrier frequency cell
  • the cell operating at the secondary carrier frequency is the secondary carrier frequency cell.
  • the primary carrier frequency cell and the secondary carrier frequency cell with the same coverage area form a cell pair, and provide downlink HSDPA data transmission for the UE, that is, in the DC-HSDPA system, the serving cell of the serving UE includes a primary carrier frequency cell and a secondary carrier. Frequency cell.
  • measurement and mobility management for the UE are performed based on the primary carrier frequency.
  • the radio signal quality of the primary carrier frequency cell and the secondary carrier frequency cell are relatively poor, and the radio network controller (Radio Network Controller, referred to as RNC)
  • RNC Radio Network Controller
  • the handover of the serving cell is performed according to the measurement report of the primary carrier frequency reported by the UE or the base station (NodeB), and the primary carrier frequency cell and the secondary carrier frequency cell of the UE are simultaneously switched to work with another adjacent pair.
  • the carrier frequency carrier and the cell operating in the secondary carrier frequency to form a new serving UE serving cell compared with the single carrier frequency system, the primary carrier frequency cell and the auxiliary carrier in the multi-carrier system
  • the sum of the radio signal quality of the frequency cell is rapidly decreasing at the edge of the primary carrier frequency or the secondary carrier frequency cell. Therefore, the serving cell handover in the DC-HSDPA system increases the call drop rate during the handover process, and reduces the handover.
  • Embodiments of the present invention provide a handover method, apparatus, and system in a multi-carrier frequency system, which are used to improve terminal throughput and reduce call drop rate.
  • the embodiment of the invention provides a handover method in a multi-carrier frequency system, including:
  • the frequency corresponding to the primary carrier frequency is a first carrier frequency
  • the frequency corresponding to the secondary carrier frequency is a second carrier frequency
  • the embodiment of the invention further provides a radio network controller, including:
  • a first receiving module configured to receive a first measurement report of a primary carrier frequency and a secondary carrier frequency, where a frequency corresponding to the primary carrier frequency is a first carrier frequency, and a frequency corresponding to the secondary carrier frequency is a second carrier frequency;
  • a first acquiring module configured to acquire, according to the first measurement report, a radio signal quality of the first carrier frequency and a radio signal quality of the second carrier frequency;
  • a first processing module configured to: when the quality of the wireless signal of the second carrier frequency is better than the quality of the wireless signal of the first carrier frequency, switch the frequency corresponding to the primary carrier frequency to the second carrier frequency, And switching a frequency corresponding to the secondary carrier frequency to the first carrier frequency.
  • the embodiment of the present invention further provides a switching system in a multi-carrier frequency system, including a radio network controller, configured to receive a first measurement report of a primary carrier frequency and a secondary carrier frequency, where the frequency corresponding to the primary carrier frequency is a carrier frequency, the frequency corresponding to the secondary carrier frequency is a second carrier frequency, and according to the first measurement report, acquiring a wireless signal quality of the first carrier frequency and a wireless signal quality of the second carrier frequency, when When the quality of the wireless signal of the second carrier frequency is better than the quality of the wireless signal of the first carrier frequency, switching the frequency corresponding to the primary carrier frequency to the second carrier frequency, and corresponding to the secondary carrier frequency Frequency switched to the stated The first carrier frequency.
  • a radio network controller configured to receive a first measurement report of a primary carrier frequency and a secondary carrier frequency, where the frequency corresponding to the primary carrier frequency is a carrier frequency, the frequency corresponding to the secondary carrier frequency is a second carrier frequency, and according to the first measurement report, acquiring a wireless signal quality of
  • the wireless network controller of the embodiment of the present invention obtains the wireless signal quality of the primary carrier frequency and the wireless signal quality of the secondary carrier frequency according to the received first measurement of the primary carrier frequency and the secondary carrier frequency.
  • the quality of the wireless signal of the secondary carrier frequency is better than the quality of the wireless signal of the primary carrier frequency
  • the frequency corresponding to the primary carrier frequency is switched to the frequency corresponding to the original secondary carrier frequency
  • the frequency corresponding to the secondary carrier frequency is switched to the original primary carrier frequency.
  • the throughput during the terminal movement is improved, and the call drop rate is reduced.
  • FIG. 1 is a schematic flowchart of a handover method in a multiple carrier frequency system according to Embodiment 1 of the present invention
  • FIG. 2A is a network structure of a dual carrier frequency system to which a handover method in a multiple carrier frequency system according to Embodiment 2 of the present invention is applied
  • FIG. 2B is a schematic flowchart of a handover method in a multi-carrier frequency system according to Embodiment 2 of the present invention
  • FIG. 2C is a diagram showing a radio signal quality of a multi-carrier frequency system in a handover method in a multi-carrier frequency system according to Embodiment 2 of the present invention
  • FIG. 3A is a schematic flowchart of a handover method in a multiple carrier frequency system according to Embodiment 3 of the present invention
  • FIG. 3B is a schematic diagram of a wireless signal quality of a multiple carrier frequency system in a handover method in a multiple carrier frequency system according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic structural diagram of a radio network controller according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a radio network controller according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of a radio network controller according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a handover system in a multiple carrier frequency system according to Embodiment 7 of the present invention. detailed description
  • FIG. 1 is a schematic flowchart of a handover method in a multiple carrier frequency system according to Embodiment 1 of the present invention. As shown in FIG. 1, the handover method in the multiple carrier frequency system of this embodiment may include the following steps:
  • Step 101 Receive a first measurement report of a primary carrier frequency and a secondary carrier frequency, where a frequency corresponding to the primary carrier frequency is a first carrier frequency, and a frequency corresponding to the secondary carrier frequency is a second carrier frequency;
  • Step 102 Acquire a wireless signal quality of the first carrier frequency and a wireless signal quality of the second carrier frequency according to the foregoing first measurement report.
  • Step 103 When the quality of the wireless signal of the second carrier frequency is better than the quality of the wireless signal of the first carrier frequency, switching the frequency corresponding to the primary carrier frequency to the second carrier frequency, and switching the frequency corresponding to the secondary carrier frequency to the The first carrier frequency.
  • the UE or the NodeB detects the radio signal quality of the first carrier frequency and the radio signal quality of the second carrier frequency according to the first measurement control command issued by the RNC, when the second carrier frequency is detected.
  • the first measurement report (Measurement Report) is reported to the RNC.
  • the first measurement on the UE or the NodeB obtains the wireless signal quality of the first carrier frequency and the wireless signal quality of the second carrier frequency.
  • the RNC switches the frequency corresponding to the primary carrier frequency to the second carrier frequency, and simultaneously switches the frequency corresponding to the secondary carrier frequency to the first carrier frequency. In the above, the throughput during the UE mobile process is improved, and the call drop rate is reduced.
  • the number of the secondary carrier frequencies in this embodiment may be one or more, that is, the frequency corresponding to the secondary carrier frequency may be a second carrier frequency or a plurality of second carrier frequencies.
  • the UE or the NodeB can report the first measurement report to the RNC as long as the quality of the wireless signal of the second carrier frequency is better than the quality of the wireless signal of the first carrier frequency, and the RNC can The frequency corresponding to the main carrier frequency is switched to the corresponding second carrier frequency, and the frequency corresponding to the corresponding secondary carrier frequency is switched to the first carrier frequency.
  • the technical solution of the embodiment of the present invention will be described in detail by taking the case where the number of the secondary carrier frequencies is one, that is, the dual carrier frequency system.
  • FIG. 2A is a schematic diagram of a network structure of a dual carrier frequency system to which a handover method in a multiple carrier frequency system according to Embodiment 2 of the present invention is applied.
  • the dual carrier frequency system of this embodiment is operated by a first cell C11 on a frequency and a second cell C21 operating on a second frequency
  • the coverage area of the first cell C11 is smaller than the coverage area of the second cell C21, which can be specifically implemented by the following means:
  • the transmit power of the pilot channel of the first cell C11 is smaller than the transmit power of the pilot channel of the second cell C21 by controlling the transmit power of the pilot channels of the two cells;
  • the load of the first cell C11 is greater than the load of the second cell C21 by controlling the load of the two cells;
  • the two cells are controlled to operate on different frequencies, and the working frequency of the first cell C11 is greater than the operating frequency of the second cell C21.
  • the neighboring cell of the first cell C11 is the third cell C12 operating on the first frequency
  • the neighboring cell of the second cell C21 is the fourth working on the second frequency.
  • the cell C22, and the coverage area of the third cell C12 is larger than the coverage area of the fourth cell C22.
  • FIG. 2B is a schematic flowchart of a handover method in a multiple carrier frequency system according to Embodiment 2 of the present invention. As shown in FIG. 2B, the handover method in the multiple carrier frequency system of this embodiment may include the following steps:
  • Step 201 The RNC receives the first measurement report of the primary carrier frequency and the secondary carrier frequency, where the frequency corresponding to the primary carrier frequency is the first carrier frequency f1, and the frequency corresponding to the secondary carrier frequency is the second carrier frequency f2, and the serving cell of the current serving UE
  • the first cell C11 operating on the first carrier frequency f1 and the second cell C21 operating on the second carrier frequency f2 are included;
  • the serving cell when the UE moves initially, includes a first cell C11 on the primary carrier frequency and a second cell C21 on the secondary carrier frequency.
  • the UE or the NodeB detects the radio signal quality of the first carrier frequency f1 and the radio signal quality of the second carrier frequency f2 according to the first measurement control command sent by the RNC.
  • the UE moves to the edge of the first cell C11 and detects that the wireless signal quality of the second carrier frequency f2 is better than the wireless signal quality of the first carrier frequency
  • the UE or the NodeB reports the first measurement report to the RNC.
  • Step 202 The RNC acquires the wireless signal quality of the first carrier frequency f1 according to the foregoing first measurement report. And the wireless signal quality of the second carrier frequency f2;
  • Step 203 When the wireless signal quality of the second carrier frequency f2 is better than the wireless signal quality of the first carrier frequency f1, the RNC switches the frequency corresponding to the primary carrier frequency to the second carrier frequency f2, and the frequency corresponding to the secondary carrier frequency. Switch to the first carrier frequency ⁇ ;
  • the RNC triggers the switching of the primary carrier frequency, switches the frequency corresponding to the primary carrier frequency to the second carrier frequency f2, and switches the frequency corresponding to the secondary carrier frequency to the first carrier frequency 1, and the switched serving cell includes The second cell C21 on the primary carrier frequency and the first cell C11 on the secondary carrier frequency.
  • Step 204 The RNC receives a second measurement report of the secondary carrier frequency, where the frequency corresponding to the secondary carrier frequency is the first carrier frequency f1, and the neighboring cell of the serving cell of the current serving UE includes the third cell working on the first carrier frequency 1.
  • the UE or the NodeB detects the radio signal quality of the first cell C11 and the radio signal quality of the third cell C12 according to the second measurement control command sent by the RNC.
  • the UE moves to the edge of the first cell C11, and detects that the radio signal quality of the third cell C12 is better than the radio signal quality of the first cell C11, the UE or the NodeB reports the second measurement report to the RNC.
  • Step 205 The RNC acquires the radio signal quality of the first cell C11 and the radio signal quality of the third cell C12 according to the foregoing second measurement report.
  • Step 206 When the radio signal quality of the third cell C12 is better than the radio signal quality of the first cell C11, the RNC removes the first cell C11 from the serving cell of the currently serving UE, and loads the third cell C12 into the current service. In the serving cell of the UE;
  • the RNC triggers the unloading and loading of the secondary carrier frequency cell, and replaces the secondary carrier frequency cell (the third cell C12) with better radio signal quality with the secondary carrier frequency cell with poor radio signal quality (the first cell C11)
  • the switched serving cell includes a second cell C21 on the primary carrier frequency and a third cell C12 on the secondary carrier frequency.
  • Step 207 The RNC receives the first measurement report of the primary carrier frequency and the secondary carrier frequency, where the frequency corresponding to the primary carrier frequency is the second carrier frequency f2, and the frequency corresponding to the secondary carrier frequency is the first carrier frequency, and the serving cell of the current serving UE
  • the third cell C12 operating on the first carrier frequency 1 and the second cell C21 operating on the second carrier frequency f2 are included;
  • the UE or the NodeB is issued according to the RNC during the continuous mobility of the UE.
  • the first measurement control command detects the wireless signal quality of the second carrier frequency f2 and the wireless signal quality of the first carrier frequency 1.
  • the UE moves to the edge of the second cell C21, and detects that the radio signal quality of the first carrier frequency 1 is better than the radio signal quality of the second carrier frequency f2, the UE or the NodeB reports the first measurement report to the RNC.
  • Step 208 The RNC obtains the wireless signal quality of the second carrier frequency f2 and the wireless signal quality of the first carrier frequency 1 according to the foregoing first measurement report.
  • Step 209 When the wireless signal quality of the first carrier frequency 1 is better than the wireless signal quality of the second carrier frequency f2, the RNC switches the frequency corresponding to the primary carrier frequency to the first carrier frequency f1, and the frequency corresponding to the secondary carrier frequency. Switching to the second carrier frequency f2;
  • the RNC triggers the switching of the primary carrier frequency, and switches the frequency corresponding to the primary carrier frequency to the first carrier frequency 1, and simultaneously switches the frequency corresponding to the secondary carrier frequency to the second carrier frequency f2, and the switched serving cell includes The third cell C12 on the primary carrier frequency and the second cell C21 on the secondary carrier frequency.
  • Step 210 The RNC receives a second measurement report of the secondary carrier frequency, where the frequency corresponding to the secondary carrier frequency is the second carrier frequency f2, and the neighboring cell of the serving cell of the current serving UE includes the fourth cell working on the second carrier frequency f2.
  • the UE or the NodeB detects the radio signal quality of the second cell C21 and the radio signal quality of the fourth cell C22 according to the second measurement control command sent by the RNC.
  • the UE moves to the edge of the second cell C21, and detects that the wireless signal quality of the fourth cell C22 is better than the wireless signal quality of the second cell C21, the UE or the NodeB reports the second measurement report to the RNC.
  • Step 211 The RNC acquires the radio signal quality of the second cell C21 and the radio signal quality of the fourth cell C22 according to the foregoing second measurement report.
  • Step 212 When the radio signal quality of the fourth cell C22 is better than the radio signal quality of the second cell C21, the RNC removes the second cell C21 from the serving cell of the currently serving UE, and loads the fourth cell C22 into the current service. In the serving cell of the UE.
  • the RNC triggers the unloading and loading of the secondary carrier frequency cell, and replaces the secondary carrier frequency cell (fourth cell C22) with better radio signal quality with the secondary carrier frequency cell with poor radio signal quality (second cell C21)
  • the switched serving cell includes a third cell C12 on the primary carrier frequency and a fourth cell C22 on the secondary carrier frequency.
  • 2C is a multi-loading method in a multi-carrier frequency system according to Embodiment 2 of the present invention; Schematic diagram of the variation of the wireless signal quality of the frequency system.
  • the method of the embodiment of the present invention completes the handover of the serving cell in the UE mobile process, the handover of the primary carrier frequency, and the handover of the serving cell implemented by the unloading and loading of the secondary carrier frequency cell may not completely interrupt the communication of the UE.
  • the process improves the throughput during the UE mobile process and reduces the dropped call rate.
  • a ping-pong handover problem may occur, for example: when the UE moves back and forth at the edge of the first cell C11 or the edge of the second cell C21.
  • repeated loading and loading of the secondary carrier frequency cell may occur, which directly leads to a large number of reconfiguration messages at the edge of the dual carrier frequency system, which increases the burden on the system and the UE, thereby affecting the communication quality.
  • the RNC, the UE, or the NodeB may also start the second protection timer after the step 206 and the step 212, and the UE or the NodeB does not report to the RNC before the second protection timer expires.
  • the second measurement report, or the RNC ignores the second measurement report reported by the UE or the NodeB (the second measurement report is not processed).
  • the RNC, the UE or the NodeB may also start the first protection timer after the step 203 and the step 209, and the UE or the NodeB does not forward before the first protection timer expires.
  • the RNC reports the first measurement report, or the RNC ignores the first measurement report reported by the UE or the NodeB (the first measurement report received is not processed).
  • the first protection timer and the second protection timer may be a fixed value, and may be configured in advance to the RNC, or may be configured to be configured in the high layer signaling to the UE or the NodeB.
  • FIG. 3A is a schematic flowchart of a handover method in a multi-carrier frequency system according to Embodiment 3 of the present invention.
  • the secondary carrier frequency is only used.
  • the cell is unloaded or loaded to implement switching between the dual carrier frequency system and the single carrier frequency system.
  • the handover method in the multiple carrier frequency system of this embodiment may include the following steps:
  • Step 301 The RNC receives the first measurement report of the primary carrier frequency and the secondary carrier frequency, where the frequency corresponding to the primary carrier frequency is the first carrier frequency f1, and the frequency corresponding to the secondary carrier frequency is the second carrier frequency f2, and the serving cell of the current serving UE
  • the first cell C11 operating on the first carrier frequency f1 and the second cell C21 operating on the second carrier frequency f2 are included;
  • the serving cell when the UE moves initially, includes the first cell C11 on the primary carrier frequency. And the second cell C21 on the secondary carrier frequency.
  • the UE or the NodeB detects the radio signal quality of the first carrier frequency f1 and the radio signal quality of the second carrier frequency f2 according to the first measurement control command sent by the RNC.
  • the UE moves to the edge of the first cell C11 and detects that the radio signal quality of the second carrier frequency f2 is better than the radio signal quality of the first carrier frequency
  • the UE or the NodeB reports the first measurement report to the RNC.
  • Step 302 The RNC obtains the wireless signal quality of the first carrier frequency f1 and the wireless signal quality of the second carrier frequency f2 according to the foregoing first measurement report.
  • Step 303 When the wireless signal quality of the second carrier frequency f2 is better than the wireless signal quality of the first carrier frequency f1, the RNC switches the frequency corresponding to the primary carrier frequency to the second carrier frequency f2, and the frequency corresponding to the secondary carrier frequency. Switch to the first carrier frequency l;
  • the RNC triggers the switching of the primary carrier frequency, switches the frequency corresponding to the primary carrier frequency to the second carrier frequency f2, and switches the frequency corresponding to the secondary carrier frequency to the first carrier frequency 1, and the switched serving cell includes The second cell C21 on the primary carrier frequency and the first cell C11 on the secondary carrier frequency.
  • Step 304 The RNC receives a third measurement report of the secondary carrier frequency, where the frequency corresponding to the secondary carrier frequency is the first carrier frequency f1, and the serving cell of the current serving UE includes the first cell C11 working on the first carrier frequency f1 and works in a second cell C21 on the second carrier frequency f2;
  • the UE or the NodeB detects the radio signal quality of the first cell C11 according to the third measurement control command sent by the RNC.
  • the UE moves to the edge of the first cell C11, and detects that the radio signal quality of the first cell C11 is lower than the first threshold that can no longer serve the UE, the UE or the NodeB reports the third measurement report to the RNC.
  • Step 305 The RNC acquires the radio signal quality of the first cell C11 according to the foregoing third measurement report.
  • Step 306 When the radio signal quality of the first cell C11 is lower than the first threshold that can no longer serve the UE, the RNC removes the first cell C11 from the serving cell of the current serving UE.
  • the RNC triggers the unloading of the secondary carrier frequency cell, and the secondary carrier frequency cell (the first cell C11) with poor radio signal quality is unloaded.
  • the serving cell only includes the second cell C21 on the primary carrier frequency. Can be seen as switching to a single carrier frequency system.
  • Step 307 The RNC receives a fourth measurement report of the primary carrier frequency and the first carrier frequency f1, where the frequency corresponding to the primary carrier frequency is the second carrier frequency f2, and the neighboring cell of the serving cell of the current serving UE includes the first working The third cell C12 on the carrier frequency f1;
  • the UE or the NodeB detects the radio signal quality of the second carrier frequency f2 and the radio signal quality of the first carrier frequency l according to the fourth measurement control command sent by the RNC.
  • the UE moves to the edge of the second cell C21, and detects that the radio signal quality of the first carrier frequency l is better than the radio signal quality of the second carrier frequency f2, the UE or the NodeB reports the fourth measurement report to the RNC.
  • Step 308 The RNC obtains the wireless signal quality of the second carrier frequency f2 and the wireless signal quality of the first carrier frequency according to the fourth measurement report.
  • Step 309 When the radio signal quality of the first carrier frequency 1 is better than the radio signal quality of the second carrier frequency f2, the RNC switches the frequency corresponding to the primary carrier frequency to the first carrier frequency 1, and the serving cell of the current serving UE includes the work. a third cell C12 on the first carrier frequency 1;
  • the RNC triggers the switching of the primary carrier frequency, and switches the frequency corresponding to the primary carrier frequency to the first carrier frequency f1, and the switched serving cell includes the third cell C12 on the primary carrier frequency.
  • Step 310 The RNC receives the fifth measurement report of the second carrier frequency f2, where the relative cell of the serving cell of the current serving UE includes the fourth cell C22 operating on the second carrier frequency f2.
  • the UE or the NodeB detects the radio signal quality of the fourth cell C22 according to the fifth measurement control command sent by the RNC.
  • the UE moves to the edge of the fourth cell C22, and detects that the wireless signal quality of the fourth cell C22 is higher than the second threshold that is allowed to serve the UE, the UE or the NodeB reports the fifth measurement report to the RNC.
  • Step 311 The RNC acquires the radio signal quality of the fourth cell C22 according to the foregoing fifth measurement report.
  • Step 312 When the radio signal quality of the fourth cell C22 is higher than the second threshold that is allowed to serve the UE, the fourth cell C22 is loaded into the serving cell of the current serving UE.
  • FIG. 3B is a schematic diagram showing changes in wireless signal quality of a multi-carrier system in a handover method in a multi-carrier system according to Embodiment 3 of the present invention.
  • the method of the embodiment of the present invention completes the handover of the serving cell in the process of UE mobility
  • the switching of the serving cell by the main carrier frequency switching and the unloading or loading of the secondary carrier frequency cell may not completely interrupt the communication process of the UE, improve the throughput during the UE mobile process, and reduce the call drop rate.
  • the RNC may start the third protection timer after step 303 and step 309 in this embodiment, and the RNC ignores the first measurement report before the third protection timer expires, and receives the The first measurement report and the fourth measurement report are not processed.
  • the third protection timer may be a fixed value, and may be pre-configured to the RNC or configured to be sent to the UE or the NodeB by being carried in the high layer signaling.
  • the RNC of this embodiment may include a first receiving module 41, a first obtaining module 42, and a first processing module 43.
  • the first receiving module 41 receives the first measurement report of the primary carrier frequency and the secondary carrier frequency, the frequency corresponding to the primary carrier frequency is the first carrier frequency, and the frequency corresponding to the secondary carrier frequency is the second carrier frequency, and the first acquiring module 42 Acquiring the wireless signal quality of the first carrier frequency and the wireless signal quality of the second carrier frequency according to the first measurement report received by the first receiving module 41, when the quality of the wireless signal of the second carrier frequency is better than the foregoing
  • the first processing module 43 switches the frequency corresponding to the primary carrier frequency to the second carrier frequency, and switches the frequency corresponding to the secondary carrier frequency to the first carrier frequency.
  • the functions of the first embodiment of the present invention, the RNC of the second embodiment of the present invention, and the functions of the RNC of the third embodiment of the present invention can be implemented by the RNC provided in this embodiment.
  • the UE or the NodeB detects the radio signal quality of the first carrier frequency and the radio signal quality of the second carrier frequency according to the first measurement control command sent by the RNC, and detects the radio signal quality of the second carrier frequency.
  • the first measurement report is reported to the RNC when the quality of the radio signal of the first carrier frequency is better.
  • the first receiving module 41 receives the first measurement report reported by the UE or the NodeB, and the first The fetching module 42 obtains the radio signal quality of the first carrier frequency and the radio signal quality of the second carrier frequency according to the first measurement report received by the first receiving module 41.
  • the first processing module 43 switches the frequency corresponding to the primary carrier frequency to the second carrier frequency, and simultaneously switches the frequency corresponding to the secondary carrier frequency to On the first carrier frequency, the throughput during the UE mobile process is improved, and the call drop rate is reduced.
  • the RNC of this embodiment may further include a first protection module (not shown), configured to start the first protection timer, and control the first acquisition module to ignore the obtained before the first protection timer expires.
  • a first protection module (not shown), configured to start the first protection timer, and control the first acquisition module to ignore the obtained before the first protection timer expires. The above first measurement report.
  • FIG. 5 is a schematic structural diagram of a radio network controller according to Embodiment 5 of the present invention.
  • the RNC of this embodiment may further include a second receiving module 51 and a second.
  • the module 52 and the second processing module 53 are obtained.
  • the second receiving module 51 receives the second measurement report of the secondary carrier frequency, where the frequency corresponding to the secondary carrier frequency is the first carrier frequency, and the serving cell of the current serving terminal includes the first cell working on the first carrier frequency, current
  • the neighboring cell of the serving cell of the serving terminal includes a third cell that operates on the first carrier frequency
  • the second acquiring module 52 acquires the first cell according to the second measurement report received by the second receiving module 51.
  • the wireless signal quality and the wireless signal quality of the third cell when the wireless signal quality of the third cell is better than the wireless signal quality of the first cell, the second processing module 53 is deactivated from the serving cell currently serving the terminal.
  • the first cell is loaded, and the third cell is loaded into a serving cell currently serving the terminal.
  • the first processing module 43 and the second processing module 53 complete the handover of the primary carrier frequency during the UE mobile process, and the unloading and loading of the secondary carrier frequency cell, which can implement the handover process of the serving cell of the UE.
  • the communication process of the UE may not be completely interrupted, the throughput during the UE mobile process is improved, and the call drop rate is reduced.
  • the RNC of this embodiment may further include a second protection module (not shown), configured to start a second protection timer, and control the second acquisition module to ignore the obtained before the second protection timer expires.
  • a second protection module (not shown), configured to start a second protection timer, and control the second acquisition module to ignore the obtained before the second protection timer expires. The above second measurement report.
  • FIG. 6 is a schematic structural diagram of a radio network controller according to Embodiment 6 of the present invention.
  • the RNC of the embodiment may further include a third receiving module 61 and a third.
  • the module 62 and the third processing module 63 are obtained.
  • the third receiving module 61 receives the third measurement report of the secondary carrier frequency, and the frequency corresponding to the secondary carrier frequency is the first carrier frequency, and the serving cell package of the current serving terminal.
  • the first cell that operates at the first frequency the third acquiring module 62 obtains the wireless signal quality of the first cell according to the third measurement report received by the third receiving module 61, when the wireless of the first cell is used.
  • the third processing module 63 removes the first cell from the serving cell currently serving the terminal.
  • the RNC of this embodiment may further include a fourth receiving module 64, a fourth obtaining module 65, and a fourth processing module 66.
  • the fourth receiving module 64 receives the fourth measurement report of the primary carrier frequency and the first carrier frequency, and the frequency corresponding to the primary carrier frequency is the second carrier frequency
  • the fourth acquiring module 65 receives the foregoing according to the fourth receiving module 64.
  • a fourth measurement report, the wireless signal quality of the second carrier frequency and the wireless signal quality of the first carrier frequency are obtained, when the quality of the wireless signal of the first carrier frequency is better than the quality of the wireless signal of the second carrier frequency
  • the four processing module 66 switches the frequency corresponding to the primary carrier frequency to the first carrier frequency.
  • the RNC of this embodiment may further include a third protection module (not shown), configured to start a third protection timer, and control the fourth acquisition module to ignore the obtained before the third protection timer expires.
  • a third protection module (not shown), configured to start a third protection timer, and control the fourth acquisition module to ignore the obtained before the third protection timer expires. The above fourth measurement report.
  • the RNC of this embodiment may further include a fifth receiving module 67, a fifth obtaining module 68, and a fifth processing module 69.
  • the fifth receiving module 67 receives the fifth measurement report of the second carrier frequency, and the current cell serving the serving cell of the terminal currently includes the fourth cell working on the second carrier frequency, and the fifth acquiring module 68 is configured according to the fifth.
  • the fifth measurement report received by the receiving module 67 acquires the radio signal quality of the fourth cell, and when the radio signal quality of the fourth cell is higher than the second threshold, the fifth processing module 69 loads the fourth cell. To the serving cell currently serving the above terminal.
  • the third processing module 63, the fourth processing module 66, and the fifth processing module 69 complete the handover of the primary carrier frequency, the unloading of the secondary carrier frequency cell, and the loading of the secondary carrier frequency cell during the UE mobile process.
  • the communication process of the UE may not be completely interrupted during the handover process of the serving cell of the UE, the throughput during the UE mobile process is improved, and the call drop rate is reduced.
  • FIG. 7 is a schematic structural diagram of a handover system in a multiple carrier frequency system according to Embodiment 7 of the present invention.
  • the handover system in the multiple carrier frequency system of this embodiment may include a radio network controller 71.
  • the wireless signal quality and the wireless signal quality of the second carrier frequency when the wireless signal quality of the second carrier frequency is better than the wireless signal quality of the first carrier frequency, switching the frequency corresponding to the primary carrier frequency to the second The carrier frequency, and the frequency corresponding to the secondary carrier frequency are switched to the first carrier frequency.
  • the functions of the first embodiment of the present invention, the RNC in the second embodiment of the present invention, and the RNC in the third embodiment of the present invention can be implemented by the radio network controller 71 in the handover system in the multi-carrier system provided in this embodiment.

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

Abstract

La présente invention porte sur un procédé, sur un appareil et sur un système de transfert dans un système à fréquences multiporteuses. Le procédé consiste à : recevoir le premier rapport de mesure de la fréquence de porteuse principale et de la fréquence de porteuse secondaire, la fréquence correspondante de la fréquence de porteuse principale étant la première fréquence de porteuse et la fréquence correspondante de la fréquence de porteuse secondaire étant la seconde fréquence (101) ; acquérir la qualité de signal sans fil de la première fréquence de porteuse et la qualité de signal sans fil de la seconde fréquence de porteuse selon le premier rapport de mesure (102) ; lorsque la qualité de signal sans fil de la seconde fréquence de porteuse est meilleure que celle de la première fréquence de porteuse, commuter la fréquence correspondante de la fréquence de porteuse principale à la seconde fréquence de porteuse et commuter la fréquence correspondante de la fréquence de porteuse secondaire à la première fréquence de porteuse (103). Dans le mode de réalisation de l'invention, lorsque la qualité de signal sans fil de la fréquence de porteuse secondaire est meilleure que celle de la fréquence de porteuse principale, le contrôleur de réseau radio (RNC) peut commuter la fréquence correspondante de la fréquence de porteuse principale à celle de la fréquence de porteuse secondaire d'origine et commuter la fréquence correspondante de la fréquence de porteuse secondaire à celle de la fréquence de porteuse principale d'origine de telle sorte que la capacité de transmission de l'UE lors du processus de déplacement puisse être améliorée et la probabilité d'abandon des connexions puisse être réduite.
PCT/CN2009/071013 2009-03-25 2009-03-25 Procédé, appareil et système de transfert dans un système à fréquences multiporteuses WO2010108320A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479601A (en) * 2010-04-12 2011-10-19 Samsung Electronics Co Ltd Assisting handover of user equipment in a wireless network employing aggregated component carriers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1735258A (zh) * 2004-08-10 2006-02-15 中兴通讯股份有限公司 Td－scdma系统中多载频小区主辅载频调整方法
CN1832621A (zh) * 2005-03-10 2006-09-13 大唐移动通信设备有限公司 多频点系统中的切换控制方法
WO2008157573A1 (fr) * 2007-06-18 2008-12-24 Interdigital Technology Corporation Procédé pour une resélection de cellule d'une technologie d'accès inter-radio
WO2009020874A1 (fr) * 2007-08-03 2009-02-12 Qualcomm Incorporated Resélection de cellule dans un système de communication sans fil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1735258A (zh) * 2004-08-10 2006-02-15 中兴通讯股份有限公司 Td－scdma系统中多载频小区主辅载频调整方法
CN1832621A (zh) * 2005-03-10 2006-09-13 大唐移动通信设备有限公司 多频点系统中的切换控制方法
WO2008157573A1 (fr) * 2007-06-18 2008-12-24 Interdigital Technology Corporation Procédé pour une resélection de cellule d'une technologie d'accès inter-radio
WO2009020874A1 (fr) * 2007-08-03 2009-02-12 Qualcomm Incorporated Resélection de cellule dans un système de communication sans fil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2479601A (en) * 2010-04-12 2011-10-19 Samsung Electronics Co Ltd Assisting handover of user equipment in a wireless network employing aggregated component carriers
GB2479601B (en) * 2010-04-12 2014-11-05 Samsung Electronics Co Ltd Handover with carrier aggregation
US9661533B2 (en) 2010-04-12 2017-05-23 Samsung Electronics Co., Ltd. Handover with carrier aggregation

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