WO2012163152A1 - 一种基于优先级的测量上报方法和设备 - Google Patents
一种基于优先级的测量上报方法和设备 Download PDFInfo
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- 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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- 238000005259 measurement Methods 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000007774 longterm Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
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- 238000000691 measurement method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—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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Abstract
本发明公开了一种基于优先级的测量上报方法和设备,该方法包括:当用户设备根据第一系统中服务小区的优先级以及第二系统中邻小区的优先级确定进行测量时,所述用户设备对所述邻小区进行测量;当所述用户设备确定所述邻小区的测量结果满足测量上报条件时,所述用户设备向网络侧上报测量结果。本发明实施例中,在TD-LTE和TD-SCDMA共覆盖的区域,设置TD-LTE系统具有高优先级,从而可保证TD-LTE系统优先切换。在TD-LTE和TD-SCDMA覆盖信号质量相当的区域,能保证不会出现跨系统间的乒乓切换,减少了跨系统切换频率,向UE提供流畅不间断的TD-LTE业务体验。
Description
一种基于优先级的测量上报方法和设备 本申请要求于 2011 年 6 月 3 日提交中国专利局, 申请号为 201110148670.4, 发明名称为 "一种基于优先级的测量上报方法和设 备"的中国专利申请的优先权,其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域,尤其涉及一种基于优先级的测量上报 方法和设备。 背景技术
TD-LTE ( TD-SCDMA Long Term Evolution, TD-SCDMA的长期 演进) 是 TD-SCDMA ( Time Division-Synchronous Code Division Multiple Access , 时分同步码分多址) 的后续演进技术, 现有 TD-SCDMA网络的覆盖已经较完备, 随着 TD-LTE的标准确定和技 术成熟, TD-LTE 系统将进入商用阶段。 在可预见的将来, 现有的 TD-SCDMA 网络设备将会与 TD-LTE 系统长期共存, TD-LTE 和 TD-SCDMA的共网能够扩展覆盖, 平衡负荷。
为了保证用户在现有业务不受影响的基础上,更快更好地体验到 TD-LTE业务, TD-LTE系统需要和现有的 TD-SCDMA网络兼容, 即 要求实现 TD-LTE和 TD-SCDMA之间的无缝漫游、 切换以及重选, 且系统间漫游、切换以及重选的目的是希望能在不同系统的边界区域 为用户的通信提供不间断的、及时的、较好的服务质量。其中, TD-LTE 和 TD-SCDMA的系统间切换是共网移动性管理不可缺少的一部分。
进一步的, TD-LTE 网络建设初期, TD-LTE 网络 ^艮难达到连续 覆盖, 这种情况下需要 TD-SCDMA网络作为补充, 以保证用户在移 动过程中不掉话, 从而实现 TD-LTE业务连续覆盖; 而 TD-LTE网络 成熟之后, 进行系统间的互操作则主要考虑业务量和负荷分担; 因此 TD-LTE和 TD-SCDMA互操作功能实现的效果将直接影响用户感知。
现有的切换方案中, 当 UE ( User Equipment , 用户设备)处于连 接状态, 网络可通过切换过程实现对 UE的移动性管理。 目前的切换 方式是 UE测量而网络判决并执行,为了使 UE辅助网络作切换判决, 源网络为 UE配置测量, 使 UE在切换之前上报服务小区及邻小区的 信道质量,从而使得网路侧根据 UE测量结果判决切换并执行。其中: 切换准备过程分为网络侧测量控制, UE测量启动, UE测量上报和网 络侧判决切换等部分。
( 1 ) 网络侧测量控制, 网络下发测量配置, 该测量配置中包含 跨系统的邻小区列表。
( 2 ) UE测量启动, UE根据邻小区列表对列出的所有小区进行 信号质量测量, 而邻小区列表未列出的小区则无需进行测量。
( 3 ) UE测量上报, TD-SCDMA系统的测量上报准则如下: 周 期性触发, 可以具体配置上 "¾周期和上 "¾次数等; 事件触发(后一次 上报或周期上报), 定义了以下测量事件: Event 3a、 Event 3b, Event 3c、 Event 3d。 TD-LTE系统的测量上报准则如下: 周期性触发, 可以 具体配置上报周期和上报次数等; 事件触发(后一次上报或周期上 报), 定义了以下测量事件: Event Bl、 Event B2。 UE测量结果通过 RRC ( Radio Resource Control, 无线资源控制)信令的 Measurement Report (测量 告) 消息上 4艮
( 4 ) 网络侧判决切换, 网络侧根据 UE测量上报结果, 依据切 换判决算法, 判决 UE是否需要切换, 以及切换到哪个小区。
在实现本发明的过程中,发明人发现现有技术中至少存在以下问 题:
当前只是根据两个系统的信号质量测量结果进行判决, 在 TD-SCDMA与 TD-LTE信号共同覆盖的区域, 不能保证 UE优先切 换到 TD-LTE网络。 而且在 TD-SCDMA与 TD-LTE覆盖信号质量相 当的区域, 两个系统的信号均较好且信号质量差不多, 则由于无线信 道环境快速变化, 容易发生 TD-SCDMA与 TD-LTE系统间的乒乓切 换, 同时也增加了 UE的功耗。
发明内容
本发明实施例提供一种基于优先级的测量上报方法和设备,以保 证 TD-LTE系统的高优先级, 保证向 UE提供不间断的 TD-LTE业务 体验。
为了达到上述目的,本发明实施例提供一种基于优先级的测量上 方法, 包括:
当用户设备根据第一系统中服务小区的优先级以及第二系统中 邻小区的优先级确定进行测量时,所述用户设备对所述邻小区进行测 量;
当所述用户设备确定所述邻小区的测量结果满足测量上报条件 时, 所述用户设备向网络侧上报测量结果。
本发明实施例一种基于优先级的测量上报设备, 包括: 第一确定模块,用于根据第一系统中服务小区的优先级以及第二 系统中邻小区的优先级确定进行测量;
测量模块, 用于对所述邻小区进行测量;
第二确定模块,用于确定所述邻小区的测量结果满足测量上报条 件;
发送模块, 用于向网络侧上报测量结果。
与现有技术相比, 本发明至少具有以下优点:
在 TD-LTE和 TD-SCDMA共覆盖的区域, 设置 TD-LTE系统具 有高优先级, 从而可保证 TD-LTE 系统优先切换。 在 TD-LTE 和 TD-SCDMA覆盖信号质量相当的区域, 能保证不会出现跨系统间的 乒乓切换,减少了跨系统切换频率,向 UE提供流畅不间断的 TD-LTE 业务体验。
附图说明
为了更清楚地说明本发明的技术方案,下面将对实施例描述中所
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。
图 1 是本发明实施例一提供的一种基于优先级的测量上报方法 流程示意图;
图 2是本发明实施例二中的应用场景示意图;
图 3是本发明实施例三中的应用场景示意图;
图 4是本发明实施例四提供的一种基于优先级的测量上报设备 结构示意图。 具体实施方式
下面将结合本发明中的附图, 对本发明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的一部分实施例, 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 在没有做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。
实施例一
本发明实施例一提供一种基于优先级的测量上报方法,以基于优 先级方式实现 TD-LTE系统和 TD-SCDMA系统的跨系统切换过程。 由于 TD-LTE的吞吐量和峰值速率均比 TD-SCDMA系统高,能给 UE 更好的业务体验,因此可为 TD-LTE设置更高的优先级,以在 TD-LTE 和 TD-SCDMA共覆盖的区域保证 TD-LTE优先切换。
需要注意的是, 本发明实施例中并不局限于 TD-LTE 系统和 TD-SCDMA 系统, 在跨系统的切换过程中均可采用本发明实施例提 供的技术方案, 为了方便描述, 以 TD-LTE系统和 TD-SCDMA系统 之间的切换过程为例进行说明。
本发明实施例中, 当 UE 发生 inter-RAT ( Inter-Radio Access Technology, 不同系统间无线接入技术) 小区切换时, 可采用基于优
先级的方式进行切换, 对于 TD-LTE系统和 TD-SCDMA系统来说, 每个小区(如工作频点、 主频点等)具有单独的优先级, 各小区的优 先级可由运营商进行配置; 而为了避免不同 inter-RAT之间的乒乓切 换, 需要规定相同的优先级取值不能同时用于多个 inter-RAT上。
切换准备过程分为网络侧测量控制, UE测量启动, UE测量上报 和网络侧判决切换四部分, 如图 1所示, 该方法包括以下步骤:
步骤 101 , 网络侧向 UE发送测量配置信息, 该测量配置信息中 携带了邻小区以及对应的优先级信息。
本步骤为网络侧测量控制过程, 网络侧可通过 SIB ( System Information Block, 系统信息块 )消息或 RRC消息向 UE发送测量配 置信息。
本发明实施例中,该邻小区可通过跨系统的邻小区列表的方式携 带。 例如, 当前服务小区为 TD-SCDMA系统内小区, 则邻小区列表 中将携带一个或多个 TD-LTE系统的邻小区,且在测量配置信息中还 携带各邻小区的优先级。
步骤 102, 当 UE根据第一系统中服务小区的优先级以及第二系 统中邻小区的优先级确定进行测量时, 对邻小区进行测量。 第一系统 为 TD-SCDMA系统, 第二系统为 TD-LTE系统; 或者, 第一系统为 TD-LTE系统, 第二系统为 TD-SCDMA系统。
本步骤为 UE测量启动过程, 如果第二系统中邻小区的优先级大 于第一系统中服务小区的优先级, 则确定对邻小区进行测量(即始终 进行测量); 例如, TD-SCDMA系统中的当前服务小区 1的优先级的 为 15, 邻小区列表中有 TD-LTE系统中的邻小区 2, 其优先级为 30, 则需要对邻小区 2进行测量。
如果第二系统中邻小区的优先级小于第一系统中服务小区的优 先级,则根据服务小区的接收功率水平确定对邻小区进行测量或确定 不对邻小区进行测量。 例如, TD-LTE系统中的当前服务小区 3的优 先级的为 20, 邻小区列表中有 TD-SCDMA系统中的邻小区 4, 其优 先级为 10, 则进一步根据邻小区 4的接收功率水平确定是否对邻小
区 4进行测量。
具体的, 如果服务小区的接收功率水平不低于预设第一门限(该 预设第一门限可根据实际经验值进行选择, 如低质量门限 H_bad ), 即服务小区的质量比较好, 则确定不对邻小区进行测量; 或者, 如果 服务小区的接收功率水平低于预设第一门限(低质量门限 H_bad ), , 即服务小区的质量比较差, 则确定对邻小区进行测量, 即可以启动 Inter-RAT的测量。
步骤 103, UE确定邻小区的测量结果满足测量上报条件时, 向 网络侧上报测量结果。 本步骤为 UE测量上报过程, 如果邻小区的测 量结果满足测量上报条件, 则向网络侧上报测量结果。
具体的, 如果邻小区 (如优先级大于服务小区优先级的邻小区) 的接收功率水平不低于预设第二门限(该预设第二门限可根据实际经 验值进行选择, 如高优先级门限 H_high值), 且不低于预设第二门限 的时间持续预设第一时间 (如评估时间 T ), 则确定邻小区的测量结 果满足测量上报条件。
如果服务小区的接收功率水平低于预设第三门限(该预设第三门 限可根据实际经验值进行选择, 如低门限值), 且低于预设第三门限 的时间持续预设第二时间 (如评估时间 T ), 邻小区 (如优先级小于 服务小区优先级的邻小区)的接收功率水平不低于预设第四门限(该 预设第四门限可根据实际经验值进行选择, 如低优先级门限 H_low 值), 且不低于预设第四门限的时间持续预设第三时间 (如评估时间 T ), 则确定邻小区的测量结果满足测量上报条件。
需要说明的是, 本发明实施例中, 如果有多个邻小区的测量结果 均满足测量上报条件, 则进行优先级排序, 并将具有最高优先级的邻 小区的测量结果上 4艮给网络侧。
步骤 104, 网络侧根据测量结果进行判决切换。
如果邻小区的接收功率水平不低于预设第二门限,且不低于预设 第二门限的时间持续预设第一时间, 则网络侧根据 UE的测量上报, 执行到更高优先级的小区切换。
如果服务小区的接收功率水平低于预设第三门限,且低于预设第 三门限的时间持续预设第二时间,邻小区的接收功率水平不低于预设 第四门限, 且不低于预设第四门限的时间持续预设第三时间, 则网络 侧根据 UE的测量上报, 执行到较低优先级的小区切换。
综上所述, 本发明实施例中, 在 TD-LTE和 TD-SCDMA共覆盖 的区域, 设置 TD-LTE系统具有高优先级, 从而可保证 TD-LTE系统 优先切换。 在 TD-LTE和 TD-SCDMA覆盖信号质量相当的区域, 能 保证不会出现跨系统间的乒乓切换, 减少了跨系统切换频率, 向 UE 提供流畅不间断的 TD-LTE业务体验。
另外, UE—般情况下只用对比服务小区更高优先级的小区进行 测量, 如果服务小区已经是最高优先级则不会进行其他小区的测量, 只有当服务小区质量比较差时才启动对低优先级小区的测量,与现有 技术要对所有测量配置的邻小区全部进行测量相比, 较大的减少了 UE需要启动测量的小区数量, 降低了 UE功耗。
当多个小区都满足准则,则选择其中最高优先级中质量最好的小 区进行上报, 与现有技术要上报多个满足测量上报规则的小区相比, 减少了 UE测量上报的小区数量, 并且缩短了 UE测量上报的 RRC 消息长度, 减小了信令开销。
为了更加清楚的阐述本发明实施例提供的技术方案,以下结合具 体的应用场景对本发明实施例进行说明。
实施例二
如图 2 所示, 小区优先级的大小依次是 TD-SCDMA 小区 A<TD-LTE 小区 B<TD-LTE 小区 C , UE 的当前服务小区是 TD-SCDMA的小区 A, 由于 TD-LTE的小区 B和小区 C的优先级均 比 TD-SCDMA的小区 A的优先级高, 因此 UE—直测量 TD-LTE的 小区 B和小区 C。
当出现 TD-LTE小区 B和小区 C均比高优先级门限 H_high值要 高,且保持一段评估时间 T后,由于 TD-LTE的小区 C的优先级最高, 因此触发 UE对 TD-LTE小区 C的测量上 4艮。
实施例三
如图 3 所示, 小区优先级的大小依次是 TD-SCDMA 小区 B<TD-SCDMA 小区 C<TD-LTE 小区 A, UE 的当前服务小区是 TD-LTE小区 A。
当出现 TD-LTE小区 A的信号质量低于低质量门限 H_bad时, UE启动对 TD-SCDMA小区 B和 TD-SCDMA小区 C的测量, 当 TD-SCDMA小区 B和 TD-SCDMA小区 C均比低优先级门限 H_low 值要高, 且保持一段评估时间 T后, 由于 TD-SCDMA小区 C优先级 相对最高, 尽管 TD-SCDMA小区 B的信号质量最好, 还是触发 UE 对 TD-SCDMA小区 C的测量上报。
实施例四
基于与上述方法同样的发明构思,本发明实施例中还提供了一种 基于优先级的测量上报设备, 如图 4所示, 该设备包括:
第一确定模块 11 , 用于根据第一系统中服务小区的优先级以及 第二系统中邻小区的优先级确定进行测量;
测量模块 12, 用于对所述邻小区进行测量;
第二确定模块 13 , 用于确定所述邻小区的测量结果满足测量上 报条件;
发送模块 14, 用于向网络侧上报测量结果。
还包括: 接收模块 15 , 用于接收来自网络侧的测量配置信息, 所述测量配置信息中携带了所述邻小区以及对应的优先级信息。
所述接收模块 15, 具体用于通过系统信息块 SIB消息或无线资 源控制 RRC消息接收来自网络侧的测量配置信息。
所述第一确定模块 11 , 具体用于如果所述第二系统中邻小区的 优先级大于所述第一系统中服务小区的优先级,确定对所述邻小区进 行测量; 或者,
如果所述第二系统中邻小区的优先级小于所述第一系统中服务 小区的优先级,根据所述服务小区的接收功率水平确定对所述邻小区 进行测量或确定不对所述邻小区进行测量。
所述第一确定模块 11 , 具体用于如果所述服务小区的接收功率 水平不低于预设第一门限, 则确定不对所述邻小区进行测量; 或者, 如果所述服务小区的接收功率水平低于预设第一门限,则确定对 所述邻小区进行测量。
所述第二确定模块 13 , 具体用于如果所述邻小区的接收功率水 平不低于预设第二门限,且不低于预设第二门限的时间持续预设第一 时间, 确定所述邻小区的测量结果满足测量上报条件; 或者,
如果所述服务小区的接收功率水平低于预设第三门限,且低于预 设第三门限的时间持续预设第二时间,所述邻小区的接收功率水平不 低于预设第四门限, 且不低于预设第四门限的时间持续预设第三时 间, 确定所述邻小区的测量结果满足测量上报条件。
所述发送模块 14, 具体用于如果有多个邻小区的测量结果满足 测量上报条件,则将具有最高优先级的邻小区的测量结果上报给网络 侧。
每个邻小区具有唯一的优先级。
所述第一系统为时分同步码分多址 TD-SCDMA系统, 所述第二 系统为 TD-SCDMA长期演进 TD-LTE系统; 或者,
所述第一系统为 TD-LTE系统, 所述第二系统为 TD-SCDMA系 统。
其中,本发明装置的各个模块可以集成于一体,也可以分离部署。 上述模块可以合并为一个模块, 也可以进一步拆分成多个子模块。
通过以上的实施方式的描述,本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平台的方式来实现, 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, 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 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。
本领域技术人员可以理解附图只是一个优选实施例的示意图,附
图中的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同 于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个 模块, 也可以进一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。
Claims
1、 一种基于优先级的测量上报方法, 其特征在于, 包括: 当用户设备根据第一系统中服务小区的优先级以及第二系统中 邻小区的优先级确定进行测量时,所述用户设备对所述邻小区进行测 量;
当所述用户设备确定所述邻小区的测量结果满足测量上报条件 时, 所述用户设备向网络侧上报测量结果。
2、 如权利要求 1所述的方法, 其特征在于, 用户设备根据第一 系统中服务小区的优先级以及第二系统中邻小区的优先级确定进行 测量, 之前还包括:
所述用户设备接收来自网络侧的测量配置信息,所述测量配置信 息中携带了所述邻 ' j、区以及对应的优先级信息。
3、 如权利要求 2所述的方法, 其特征在于, 所述用户设备接收 来自网络侧的测量配置信息, 包括:
所述用户设备通过系统信息块 SIB消息或无线资源控制 RRC消 息接收来自网络侧的测量配置信息。
4、 如权利要求 1所述的方法, 其特征在于, 所述方法还包括: 如果所述第二系统中邻小区的优先级大于所述第一系统中服务 小区的优先级, 所述用户设备确定对所述邻小区进行测量; 或者, 如果所述第二系统中邻小区的优先级小于所述第一系统中服务 小区的优先级,所述用户设备根据所述服务小区的接收功率水平确定 对所述邻小区进行测量或确定不对所述邻小区进行测量。
5、 如权利要求 4所述的方法, 其特征在于, 所述用户设备根据 所述服务小区的接收功率水平确定对所述邻小区进行测量或确定不 对所述邻小区进行测量, 包括:
如果所述服务小区的接收功率水平不低于预设第一门限,则所述 用户设备确定不对所述邻小区进行测量; 或者,
如果所述服务小区的接收功率水平低于预设第一门限,则所述用 户设备确定对所述邻小区进行测量。
6、 如权利要求 1所述的方法, 其特征在于, 所述用户设备确定 所述邻小区的测量结果满足测量上报条件, 包括:
如果所述邻小区的接收功率水平不低于预设第二门限,且不低于 预设第二门限的时间持续预设第一时间,所述用户设备确定所述邻小 区的测量结果满足测量上报条件; 或者,
如果所述服务小区的接收功率水平低于预设第三门限,且低于预 设第三门限的时间持续预设第二时间,所述邻小区的接收功率水平不 低于预设第四门限, 且不低于预设第四门限的时间持续预设第三时 间, 所述用户设备确定所述邻小区的测量结果满足测量上报条件。
7、 如权利要求 1所述的方法, 其特征在于, 所述用户设备向网 络侧上报测量结果, 包括:
如果有多个邻小区的测量结果满足测量上报条件,则所述用户设 备将具有最高优先级的邻小区的测量结果上 4艮给网络侧。
8、 如权利要求 1-7任一项所述的方法, 其特征在于, 每个邻小 区具有唯一的优先级。
9、 如权利要求 1-7任一项所述的方法, 其特征在于, 所述第一 系统为时分同步码分多址 TD-SCDMA 系统, 所述第二系统为 TD-SCDMA长期演进 TD-LTE系统; 或者,
所述第一系统为 TD-LTE系统, 所述第二系统为 TD-SCDMA系 统。
10、 一种基于优先级的测量上报设备, 其特征在于, 包括: 第一确定模块,用于根据第一系统中服务小区的优先级以及第二 系统中邻小区的优先级确定进行测量;
测量模块, 用于对所述邻小区进行测量;
第二确定模块,用于确定所述邻小区的测量结果满足测量上报条 件;
发送模块, 用于向网络侧上报测量结果。
11、 如权利要求 10所述的设备, 其特征在于, 还包括: 接收模块, 用于接收来自网络侧的测量配置信息, 所述测量配置 信息中携带了所述邻小区以及对应的优先级信息。
12、 如权利要求 11所述的设备, 其特征在于,
所述接收模块,具体用于通过系统信息块 SIB消息或无线资源控 制 RRC消息接收来自网络侧的测量配置信息。
13、 如权利要求 10所述的设备, 其特征在于,
所述第一确定模块,具体用于如果所述第二系统中邻小区的优先 级大于所述第一系统中服务小区的优先级,确定对所述邻小区进行测 量; 或者,
如果所述第二系统中邻小区的优先级小于所述第一系统中服务 小区的优先级,根据所述服务小区的接收功率水平确定对所述邻小区 进行测量或确定不对所述邻小区进行测量。
14、 如权利要求 13所述的设备, 其特征在于,
所述第一确定模块,具体用于如果所述服务小区的接收功率水平 不低于预设第一门限, 则确定不对所述邻小区进行测量; 或者, 如果所述服务小区的接收功率水平低于预设第一门限,则确定对 所述邻小区进行测量。
15、 如权利要求 10所述的设备, 其特征在于,
所述第二确定模块,具体用于如果所述邻小区的接收功率水平不 低于预设第二门限, 且不低于预设第二门限的时间持续预设第一时 间, 确定所述邻小区的测量结果满足测量上报条件; 或者,
如果所述服务小区的接收功率水平低于预设第三门限,且低于预 设第三门限的时间持续预设第二时间,所述邻小区的接收功率水平不 低于预设第四门限, 且不低于预设第四门限的时间持续预设第三时 间, 确定所述邻小区的测量结果满足测量上报条件。
16、 如权利要求 10所述的设备, 其特征在于,
所述发送模块,具体用于如果有多个邻小区的测量结果满足测量 上报条件, 则将具有最高优先级的邻小区的测量结果上报给网络侧。
17、 如权利要求 10-16任一项所述的设备, 其特征在于, 每个邻 小区具有唯一的优先级。
18、 如权利要求 10-16任一项所述的设备, 其特征在于, 所述第 一系统为时分同步码分多址 TD-SCDMA 系统, 所述第二系统为 TD-SCDMA长期演进 TD-LTE系统; 或者,
所述第一系统为 TD-LTE系统, 所述第二系统为 TD-SCDMA系 统。
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