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WO2012163152A1 - Équipement et procédé de signalement de mesure basés sur la priorité - Google Patents

Équipement et procédé de signalement de mesure basés sur la priorité Download PDF

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Publication number
WO2012163152A1
WO2012163152A1 PCT/CN2012/072954 CN2012072954W WO2012163152A1 WO 2012163152 A1 WO2012163152 A1 WO 2012163152A1 CN 2012072954 W CN2012072954 W CN 2012072954W WO 2012163152 A1 WO2012163152 A1 WO 2012163152A1
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WO
WIPO (PCT)
Prior art keywords
priority
neighboring cell
measurement
cell
preset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/072954
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English (en)
Chinese (zh)
Inventor
阮航
刘建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2012163152A1 publication Critical patent/WO2012163152A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H04W36/008375—Determination of triggering parameters for hand-off based on historical data

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a priority-based measurement reporting method and apparatus. Background technique
  • TD-LTE TD-SCDMA Long Term Evolution, long-term evolution of TD-SCDMA
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • existing TD-SCDMA network The coverage has been relatively complete. With the TD-LTE standard and mature technology, the TD-LTE system will enter the commercial stage. In the foreseeable future, the existing TD-SCDMA network equipment will coexist with the TD-LTE system for a long time, and the common network of TD-LTE and TD-SCDMA can extend coverage and balance the load.
  • the TD-LTE system needs to be compatible with the existing TD-SCDMA network, that is, TD-LTE and TD- are required.
  • Seamless roaming, handover and reselection between SCDMA, and the purpose of roaming, switching and reselection between systems is to provide uninterrupted, timely and better quality of service for users' communication in the boundary areas of different systems. .
  • the inter-system handover between TD-LTE and TD-SCDMA is an indispensable part of the common network mobility management.
  • the TD-LTE network is difficult to achieve continuous coverage.
  • the TD-SCDMA network needs to be supplemented to ensure that the user does not drop calls during the mobile process, thereby implementing the TD-LTE service.
  • Continuous coverage After the TD-LTE network matures, inter-system interoperability mainly considers traffic volume and load sharing; therefore, the effects of TD-LTE and TD-SCDMA interoperability functions will directly affect user perception.
  • the UE User Equipment
  • the network can implement mobility management of the UE through the handover procedure.
  • the current handover mode is the UE measurement and the network is determined and executed.
  • the source network configures the measurement for the UE, so that the UE reports the channel quality of the serving cell and the neighboring cell before the handover, so that the network side
  • the UE measurement result is decided to switch and execute.
  • the handover preparation process is divided into a network side measurement control, a UE measurement start, a UE measurement report, and a network side decision switch.
  • the network sends a measurement configuration, and the measurement configuration includes a list of neighboring cells across systems.
  • the UE measurement is started, the UE performs signal quality measurement on all the cells listed according to the neighbor cell list, and the cells not listed in the neighbor cell list need not be measured.
  • the measurement reporting criteria of the TD-SCDMA system are as follows: Periodic triggering, which can be specifically configured with "3 ⁇ 4 cycles and up" 3 ⁇ 4 times, etc.; event triggering (later reporting or periodic reporting), defining the following measurements Events: Event 3a, Event 3b, Event 3c, Event 3d.
  • the measurement reporting criteria of the TD-LTE system are as follows: Periodic triggering, which can be configured with the reporting period and the number of reporting times. Event triggering (later reporting or periodic reporting) defines the following measurement events: Event Bl, Event B2.
  • the UE measurement result is transmitted on the Measurement Report message of RRC (Radio Resource Control) signaling.
  • RRC Radio Resource Control
  • the network side decides to switch, and the network side determines whether the UE needs to be handed over and switches to which cell according to the handover decision algorithm according to the UE measurement report result.
  • the decision is based on the signal quality measurement results of the two systems.
  • the UE In the area where the TD-SCDMA and TD-LTE signals are jointly covered, the UE cannot be preferentially switched to the TD-LTE network.
  • the signals of both systems are better and the signal quality is similar. Because of the rapid change of the wireless channel environment, ping-pong between TD-SCDMA and TD-LTE systems is easy to occur. Switching also increases the power consumption of the UE. Summary of the invention
  • the embodiments of the present invention provide a priority-based measurement reporting method and device to ensure high priority of the TD-LTE system and ensure uninterrupted TD-LTE service experience to the UE.
  • an embodiment of the present invention provides a priority-based measurement method, including:
  • the user equipment When the user equipment performs measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, the user equipment measures the neighboring cell;
  • the user equipment determines that the measurement result of the neighboring cell meets the measurement reporting condition, the user equipment reports the measurement result to the network side.
  • a priority-based measurement reporting device includes: a first determining module, configured to perform measurement according to a priority of a serving cell in a first system and a priority of a neighboring cell in the second system;
  • a measuring module configured to perform measurement on the neighboring cell
  • a second determining module configured to determine that the measurement result of the neighboring cell meets a measurement reporting condition
  • the sending module is configured to report the measurement result to the network side.
  • the present invention has at least the following advantages:
  • the TD-LTE system In the area covered by TD-LTE and TD-SCDMA, the TD-LTE system is set to have a high priority, so that the TD-LTE system can be preferentially switched. In areas where TD-LTE and TD-SCDMA cover signal quality are equivalent, ping-pong switching between systems can be guaranteed, cross-system switching frequency is reduced, and a smooth and uninterrupted TD-LTE service experience is provided to the UE.
  • FIG. 1 is a schematic flowchart of a priority-based measurement reporting method according to Embodiment 1 of the present invention
  • Embodiment 2 is a schematic diagram of an application scenario in Embodiment 2 of the present invention.
  • Embodiment 3 is a schematic diagram of an application scenario in Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a priority-based measurement reporting device according to Embodiment 4 of the present invention. detailed description
  • Embodiment 1 of the present invention provides a priority-based measurement reporting method for implementing a cross-system handover process between a TD-LTE system and a TD-SCDMA system based on a priority manner. Since the throughput and peak rate of TD-LTE are higher than those of TD-SCDMA systems, it can give the UE a better service experience, so it can set a higher priority for TD-LTE to be shared in TD-LTE and TD-SCDMA. The covered area guarantees TD-LTE priority switching.
  • the TD-LTE system and the TD-SCDMA system are not limited to the TD-LTE system and the TD-SCDMA system, and the technical solutions provided by the embodiments of the present invention may be used in the process of the cross-system handover.
  • the handover process between the LTE system and the TD-SCDMA system is described as an example.
  • the UE when the inter-RAT (inter-radio access technology, inter-system radio access technology) cell handover occurs, the UE may be based on the optimal For the TD-LTE system and the TD-SCDMA system, each cell (such as the working frequency, the primary frequency, etc.) has a separate priority, and the priority of each cell can be configured by the operator. In order to avoid ping-pong switching between different inter-RATs, it is required to specify that the same priority value cannot be used for multiple inter-RATs at the same time.
  • each cell such as the working frequency, the primary frequency, etc.
  • the handover preparation process is divided into network-side measurement control, UE measurement initiation, UE measurement reporting, and network-side decision switching. As shown in FIG. 1, the method includes the following steps:
  • Step 101 The network side sends the measurement configuration information to the UE, where the measurement configuration information carries the neighboring cell and the corresponding priority information.
  • This step is a network-side measurement control process.
  • the network side can send measurement configuration information to the UE through a SIB (System Information Block) message or an RRC message.
  • SIB System Information Block
  • the neighboring cell may be carried by means of a neighbor cell list across the system.
  • the neighboring cell list will carry one or more neighboring cells of the TD-LTE system, and the measurement configuration information also carries the priority of each neighboring cell.
  • Step 102 When the UE determines to perform measurement according to the priority of the serving cell in the first system and the priority of the neighboring cell in the second system, the neighboring cell is measured.
  • the first system is a TD-SCDMA system
  • the second system is a TD-LTE system
  • the first system is a TD-LTE system
  • the second system is a TD-SCDMA system.
  • This step is a UE measurement initiation process. If the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, it is determined to measure the neighboring cell (ie, always perform measurement); for example, in the TD-SCDMA system.
  • the priority of the current serving cell 1 is 15, and the neighboring cell list has the neighboring cell 2 in the TD-LTE system, and its priority is 30, and the neighboring cell 2 needs to be measured.
  • the priority of the neighboring cell in the second system is smaller than the priority of the serving cell in the first system, determining whether to measure the neighboring cell or determining not to measure the neighboring cell according to the received power level of the serving cell.
  • the priority of the current serving cell 3 in the TD-LTE system is 20, and the neighboring cell list has the neighboring cell 4 in the TD-SCDMA system, and its priority is 10, and further according to the receiving power level of the neighboring cell 4. Determine whether it is small to neighbors Zone 4 is measured.
  • the preset first threshold may be selected according to an actual experience value, such as a low quality threshold H_bad), that is, the quality of the serving cell is relatively good
  • Step 103 When the UE determines that the measurement result of the neighboring cell meets the measurement reporting condition, the UE reports the measurement result to the network side. This step is for the UE to measure the reporting process. If the measurement result of the neighboring cell meets the measurement reporting condition, the measurement result is reported to the network side.
  • the preset second threshold may be selected according to an actual experience value, such as a high priority.
  • the threshold H_high value and the time that is not lower than the preset second threshold continues for a preset first time (such as the evaluation time T), and then determines that the measurement result of the neighboring cell satisfies the measurement reporting condition.
  • the preset third threshold may be selected according to an actual experience value, such as a low threshold
  • the time below the preset third threshold continues for a preset period.
  • the received power level of the neighboring cell such as the neighboring cell with the priority lower than the priority of the serving cell
  • the preset fourth threshold can be selected according to the actual experience value
  • the priority ranking is performed, and the measurement result of the neighboring cell with the highest priority is sent to the network side.
  • Step 104 The network side performs a decision switch according to the measurement result.
  • the network side performs the reporting to the higher priority according to the measurement report of the UE.
  • Cell handover If the received power level of the serving cell is lower than the preset third threshold, and the time lower than the preset third threshold continues for a preset second time, the received power level of the neighboring cell is not lower than the preset fourth threshold, and is not low.
  • the preset time is preset for the third time, the network side performs cell handover to a lower priority according to the measurement report of the UE.
  • the TD-LTE system in the area covered by TD-LTE and TD-SCDMA, the TD-LTE system has a high priority, so that the TD-LTE system can be preferentially switched.
  • TD-LTE and TD-SCDMA cover signal quality are equivalent, ping-pong switching between systems can be guaranteed, cross-system switching frequency is reduced, and a smooth and uninterrupted TD-LTE service experience is provided to the UE.
  • the UE generally uses only the higher priority cell in the serving cell to measure. If the serving cell is already the highest priority, the measurement of other cells will not be performed. Only when the quality of the serving cell is relatively poor, the low is started.
  • the measurement of the priority cell reduces the number of cells that the UE needs to start measurement and reduces the power consumption of the UE, compared with the measurement of all the neighboring cells in the measurement configuration.
  • the cell with the best quality among the highest priority is selected for reporting, and the number of cells reported by the UE is reduced compared with the cell that reports the multiple measurement reporting rules in the prior art, and The RRC message length reported by the UE is shortened, and the signaling overhead is reduced.
  • the priority of the cell priority is TD-SCDMA cell A ⁇ TD-LTE cell B ⁇ TD-LTE cell C
  • the current serving cell of the UE is cell A of TD-SCDMA, because the cell of TD-LTE Both B and cell C have higher priority than cell A of TD-SCDMA, so the UE directly measures cell B and cell C of TD-LTE.
  • the priority of the cell is TD-SCDMA cell B ⁇ TD-SCDMA cell C ⁇ TD-LTE cell A
  • the current serving cell of the UE is TD-LTE cell A.
  • the UE When the signal quality of the TD-LTE cell A is lower than the low quality threshold H_bad, the UE initiates measurement of the TD-SCDMA cell B and the TD-SCDMA cell C, when the TD-SCDMA cell B and the TD-SCDMA cell C are both low.
  • the priority threshold H_low value is high, and after a period of evaluation time T, since the TD-SCDMA cell C has the highest priority, although the signal quality of the TD-SCDMA cell B is the best, the UE is triggered to measure the TD-SCDMA cell C. Reported.
  • the embodiment of the present invention further provides a priority-based measurement reporting device.
  • the device includes:
  • the first determining module 11 is configured to perform measurement according to a priority of the serving cell in the first system and a priority determination of the neighboring cell in the second system;
  • a measuring module 12 configured to perform measurement on the neighboring cell
  • the second determining module 13 is configured to determine that the measurement result of the neighboring cell meets the measurement reporting condition
  • the sending module 14 is configured to report the measurement result to the network side.
  • the method further includes: a receiving module 15 , configured to receive measurement configuration information from the network side, where the measurement configuration information carries the neighboring cell and corresponding priority information.
  • the receiving module 15 is specifically configured to receive measurement configuration information from the network side by using a system information block SIB message or a radio resource control RRC message.
  • the first determining module 11 is specifically configured to: if the priority of the neighboring cell in the second system is greater than the priority of the serving cell in the first system, determine to measure the neighboring cell; or
  • the first determining module 11 is specifically configured to: if the received power level of the serving cell is not lower than a preset first threshold, determine not to perform measurement on the neighboring cell; or if a received power level of the serving cell Below the preset first threshold, it is determined that the neighboring cell is measured.
  • the second determining module 13 is specifically configured to: if the received power level of the neighboring cell is not lower than a preset second threshold, and is not lower than a preset second threshold for a preset first time, determining the The measurement result of the neighboring cell satisfies the measurement reporting condition; or
  • the received power level of the serving cell is lower than a preset third threshold, and the time is lower than the preset third threshold for a preset second time, the received power level of the neighboring cell is not lower than a preset fourth threshold. And the time that is not lower than the preset fourth threshold continues for a preset third time, and determines that the measurement result of the neighboring cell meets the measurement reporting condition.
  • the sending module 14 is specifically configured to report the measurement result of the neighboring cell with the highest priority to the network side if the measurement result of the multiple neighboring cells meets the measurement reporting condition.
  • Each neighbor cell has a unique priority.
  • the first system is a time division synchronous code division multiple access TD-SCDMA system
  • the second system is a TD-SCDMA long term evolution TD-LTE system
  • the first system is a TD-LTE system
  • the second system is a TD-SCDMA system.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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

Abstract

L'invention concerne un équipement et un procédé de signalement de mesure basés sur la priorité. Le procédé comprend les étapes suivantes : en cas de détermination destinée à mesurer selon la priorité d'une cellule de service dans un premier système et la priorité d'une cellule adjacente dans un second système, un équipement d'utilisateur mesure la cellule adjacente ; et en cas de détermination qu'un résultat de mesure de la cellule adjacente satisfait à la condition de signalement de mesure, l'équipement d'utilisateur signale le résultat de mesure à un côté de réseau. Dans le mode de réalisation de l'invention, un système TD-LTE est défini pour avoir une priorité élevée dans une zone couverte par le TD-LTE et le TD-SCDMA couramment, garantissant ainsi que le système TD-LTE est commuté de manière préférentielle. Comme pour une zone dans laquelle le TD-LTE et le TD-SCDMA ont la qualité de couverture de signal équivalente, il est garanti que la condition de commutation d'alternat intersystème ne se produira pas, la fréquence de commutation intersystème est réduite, et l'expérience de service TD-LTE ininterrompue et fluide peut être obtenue pour l'UE.
PCT/CN2012/072954 2011-06-03 2012-03-23 Équipement et procédé de signalement de mesure basés sur la priorité Ceased WO2012163152A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011101486704A CN102223666A (zh) 2011-06-03 2011-06-03 一种基于优先级的测量上报方法和设备
CN201110148670.4 2011-06-03

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CN114080001A (zh) * 2020-08-19 2022-02-22 华为技术服务有限公司 一种接入无线网络的方法及装置

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