CN2907098Y - 配置增强上行链路服务无线存取承载电路的无线通信*** - Google Patents
配置增强上行链路服务无线存取承载电路的无线通信*** Download PDFInfo
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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Abstract
一种无线通信***,其用以控制一增强上行链路(EU)无线存取承载(RAB)。该无线通信***包含至少一无线发射/接收单元(WTRU)、至少一节点B以及一无线网络控制器(RNC)。该RNC配置一EU RAB以在一增强专用信道(E-DCH)运作,至少该WTRU及该节点B之一将EU流量统计数据以及EU性能统计数据报告给该RNC,该RNC接着根据该接收的EU流量统计数据、该EU性能统计数据以及该RNC本身收集的信息,来调整该EU RAB的配置。
Description
技术领域
本发明涉及一种无线通信***,其包含至少一无线发射/接收单元(WTRU)、至少一节点B以及一无线网络控制器(RNC)。更确切地说,本发明涉及一种配置增强上行链路(enhanced uplink;EU)无线存取承载电路(radio access bearers;RABs)的无线通信***,用以支持在无线通信***中的EU服务。
背景技术
用以改善上行链路(UL)覆盖、吞吐量以及传输延迟时间的方法,现今在第三代合作伙伴计划(3GPP)中已经有所研究。为了达成这些目标、UL资源(亦即物理信道)的控制(亦即调度和分派)将从RNC移至节点B。
节点B在短期基础下可比RNC更有效率地决定和管理上行链路无线资源。然而,在一允许传输格式组合集(TFCA)、最大允许传输功率或诸如此类而言,RNC应该维持对EU RAB整体的粗控。
发明内容
本发明涉及一种用以控制一EU RAB的无线通信方法和***,该无线通信***包含至少一WTRU、至少一节点B以及一RNC。该RNC配置一EU RAB以在一增强专用信道(E-DCH)上运作,至少该WTRU及该节点B之一将EU流量统计数据和EU性能统计数据汇报给RNC,该RNC接着依据所接收到的EU流量统计数据和EU性能统计数据调整该EU RAB的配置。
附图说明
通过下文中以范例形式给出的优选实施例的描述,参照对应的附图,可以更详细地了解本发明,其中:
图1是根据本发明所配置的无线通信***的方框图;以及
图2是在图1的***执行的用以配置一EU RAB的程序的信号图。
具体实施方式
此后,专用术语“WTRU”包含但不限于一用户设备(UE)、一移动站、一固定或移动用户单元、一呼叫器或可在一无线环境下操作的任何形式的装置。此后,专用术语“节点B”包含但不限于一基站、一站点控制器、一访问点或是在无线环境下任何类型的接口装置。
本发明的特征可集成到一集成电路(IC),或是配置在包含许多互连组件的电路上。
图1是根据本发明所配置的无线通信***100的方框图,该***100包含至少一WTRU 102、至少一节点B 104以及一RNC 106。除了一般的专用信道(DCH)104之外,还在该WTRU 102及该节点B 104之间建立一E-DCH 108(与相关的发送信号的信道一起)。当然,本领域技术人员应该了解,图1并未描述所有在WTRU 102及该节点B 104之间的与本发明无特定相关的发送信号,例如任何下行链路(DL)信道。
该RNC 106经由一Iub/Iur接口112保持EU RAB的完全控制。通过适当地设定该EU RAB参数,该RNC 106可保持对EU RAB的粗控,且无线资源将有效地被一般DCHs 110及E-DCHs 108所利用。该RNC 106能控制该EU RAB,而不需要严密地监督在一E-DCH 108上以传输时间间隔(TTI)为基础,从WTRU 102到节点B 104的EU传输。
当该RAB被配置来传输E-DCH数据,该RNC 106便会通过建立WTRU配置请求来为该RAB建立EU服务的配置,对每一支持该EU服务的WTRU102的初始配置可包含但不限制于至少下面之一:E-DCH的允许传输格式组合集(TFCS);E-DCH的允许调制及编码方案(MCSs);一最大允许E-DCH传输功率;以及一最大允许WTRU传输功率。该最大允许WTRU传输功率限制了在一般DCH、E-DCH、高速下行链路数据包存取(HSDPA)的上行链路发送信号信道及E-DCH的一上行链路发送信号信道上的传输功率的总和。
该RAB可使用至少下述其一方式配置,包括一信道配置请求响应定时器(其在该WTRU产生其它定期信道配置请求前,定义一节点B提供一E-DCH配置信息的时间限制)、一E-DCH传输信道(TrCH)的一区段错误率(BLER)、该E-DCH TrCH的一信号干扰比(SIR)、DCH流的介质访问控制(MAC-d)至一E-DCH TrCH的映射、自动重复请求(ARQ)重新传输(优选地每一MAC-d流)的最大值、混合ARQ(hybrid-ARQ,H-ARQ)重新传输的最大值、以及在每一TrCH的EU的WTRU MAC(MAC-e)及一EU的物理层(PHY-e)内的一数据寿命定时器(用以定义E-DCH数据的传输届满的时间限制)。当超过H-ARQ重新传输的最大值,或是当寿命定时器届满时,该WTRU MAC-e可丢弃该E-DCH数据。
一开始,该E-DCH的允许TFCS及MCSs通过考虑至少下述其中之一而配置,即在一单元的UL内一般DCH流量的当前负载、在一单元内EU流量的当前负载、以及要被配置给EU服务用的WTRU 102的信息。在一单元的上行链路内的一般DCH流量的当前负载通过资源使用、平均传输功率、平均干扰、每位请求能量对噪声比、数据率以及有效因子至少之一决定。在一单元内EU流量的当前负载通过资源使用、平均传输功率、平均干扰、可能的MCS、每一MCS作用的平均概率、每一MCS的每位请求能量对噪声比、可能的TFCs及每一TFC可能作用的平均概率、以及一有效因子至少之一决定。被配置给EU服务用的该WTRU102的信息包含其当前一般DCH的信息(在一般DCH上的数据率、每位请求能量对噪声比以及一有效因子)、以及所期待E-DCH的信息(该EU服务的期待数据率、QoS(例如区段错误率))、有效因子或诸如此类。
由于EU服务被增加至目前具有一般DCHs的RAB上,因此该WTRU102的最大允许传输功率应该被配置。该最大允许E-DCH传输功率及最大允许WTRU传输功率通过考虑与该允许TFCS及MCS的相同因子所决定,另外还要加上一些因子,例如由该RNC 106所配置的当前最大允许WTRU传输功率,以及达到最大传输功率的事件的数量。
例如H-ARQ/ARQ重新传输的最大值、寿命定时器或是诸如此类的参数基于RABs映射到MAC-d流的QoS所决定,该最大H-ARQ重新传输及WTRU MAC-e传输寿命通过考虑最大允许传输延迟时间以及维持QoS的BLER要求所决定。MAC-d流会在WTRU 102的逻辑信道和传输信道间发生,其用以建立该EU RAB的参数。
每一MAC-d流具有唯一的配置参数,该参数与该RABs的所需QoS相关。该WTRU 102及该节点B 104可由该RNC 106配置,以便在一E-DCHTrCH上多路传输多个MAC-d流,并可给予一MAC-d流对于其它MAC-d流的调度优先权,这可由一绝对优先权机制达成,该机制中具有较高优先权的数据传输永远最大化。允许传输格式(TFs)、MCSs、传输功率、BLER、MAC(MAC-d)流映射的DCH、H-ARQ/ARQ重新传输最大值以及数据寿命参数的至少之一对每一MAC-d流来说都是唯一的。
调度的EU传输仅能使用在配置中允许使用的TFCS及MCSs。在E-DCH上的传输功率不应超过由RNC 106所配置的最大允许E-DCH传输功率。在一般DCH及E-DCH上传输功率的总量不应超过所配置的最大允许WTRU传输功率。
在E-DCH 108上的该WTRU 102的传输也受为E-DCH TrCH所配置的参数限制(例如:寿命定时器、H-ARQ重新传输最大值、ARQ重新传输值或诸如此类),如果超过H-ARQ程序传输的最大值或是传输寿命定时器,则该WTRU MAC-e可丢弃该传输,并开始来自较高层的下一次传输的服务。
一旦该WTRU 102开始在E-DCH 108上运作,对于映射到该EU RAB的每一MAC-d流或TrCH,EU流量统计数据和性能统计数据汇报给RNC106。该EU流量统计数据包含储存在WTRU 102内EU数据的流量量测量(TVM),以及在一预设时间周期内发生的成功或失败的EU数据传输量。该EU性能统计数据包含下列至少之一,包括每单元的资源使用、每WTRU的资源使用、每单元的ACK/NACK比、每资源的ACK/NACK比、每WTRU的ACK/NACK比、在介质访问控制(MAC)层传输失败的平均数(或在MAC层传输失败的平均数)、每单元的平均信道品质指示器(CQI)结果、每资源的平均CQI结果、每WTRU的平均CQI、最佳CQI结果、最差CQI结果、达到WTRU最大传输功率的事件数、达到WTRU的EU最大传输功率的事件数、因为混合自动重复请求(H-ARQ)程序重新传输限制而导致传输失败的数量、以及因为超过EU传输寿命而导致传输失败的数量。
EU流量和性能统计数据可由WTRU 102和节点B 104报告给RNC106。来自该WTRU 102的报告可由该节点B 104中继传给RNC 106,该报告可以周期或是阈值为基础,该报告的周期或阈值由该RNC 106设定且也是设计参数。
在该EU流量和性能统计数据仅由该节点B 104报告给RNC 106的情况下,由该WTRU 102收集的EU流量和性能统计数据通过物理层或MAC层以信号发送给节点B 104,如果这样,EU流量和性能统计数据可通过Iub/Iur接口112收集并发送给RNC 106。
其它仅由节点B 104所知的测量数据也能发送给RNC 106,以便允许RNC 106控制EU资源,这包含了在WTRU或单元基础上报告的EU分派码上的接收码功率、基于EU分派码接收的干扰、如同由该节点B 104察觉的ACK/NACK比。
除了EU流量和性能统计数据以及测量报告被送至RNC 106外,EU服务的配置的调整也会根据RNC 106本身收集的一些信息,该信息包含一般DCH 110的流量和性能统计数据及一些EU性能统计数据。
当从WTRU 102及/或该节点B 104接收所报告的EU流量和性能统计数据及测量报告时,该RNC 106调整该EU RAB的配置,例如允许TFs、MCSs、传输功率、BLER、MAC-d流映射、H-ARQ重新传输、以及根据所报告的流量和性能统计数据,每一MAC-d流或TrCH的数据寿命参数。经由此方法,该RNC 106能保持对EU RAB的粗控。
图2是根据本发明,用以配置和重新配置EU RABs的程序200在***100执行的信号图。该方法在至少一WTRU 102、至少一节点B 104以及一RNC 106间执行。该RNC 106通过Iub/Iur接口102向节点B 104送出初始配置参数(例如:信道化码、最大干扰、最大允许TFCS/MCSs、最大允许E-DCH及WTRU功率或诸如此类)(步骤202)。当该EU RAB被配置在E-DCH 108上运作时,该RNC 106通过***配置参数(例如:最大允许TFCS/MCSs、最大允许E-DCH及WTRU功率、H-ARQ传输最大值、一数据寿命定时器、一周期信道配置请求产生的信道配置响应定时器、或诸如此类)透过无线资源控制(RRC)消息配置一EU RAB给该WTRU 102(步骤204)。EU调度通过该节点B 104执行,其在由该RNC 106所设定的配置限制内,且由物理层或MAC层发送信号传输(步骤206)。该WTRU 102通过RRC消息来汇报EU流量和性能统计数据(例如:TVM、传输(TX)数据量、ACK/NACK比、信道品质指示器(CQI)、最大功率事件数或诸如此类)给该RNC 106(步骤208),或通过物理层或MAC层发送信号给节点B 104(步骤210),然后再经由Iub/Iur接口112送给RNC106(步骤212)。该RNC 106则依据所报告的统计数据,重新配置该EU服务及该EU RAB(步骤202)。
尽管本发明的特征和组件皆在优选实施例中以特定组合方式进行了描述,但实施例中每一特征或组件能独自使用,而不需与优选实施例中其它特征或组件组合,也能与/不与本发明的其它特征和组件做不同的组合。
Claims (1)
1.一种无线通信***,其用以控制一无线存取承载电路以支持增强上行链路服务,该***其特征在于:
(a)至少配置一无线发射/接收单元以传输增强上行链路流量统计数据及增强上行链路性能统计数据;
(b)至少一节点B与无线发射/接收单元通信,该节点B被配置以传输增强上行链路流量统计数据及增强上行链路性能统计数据;以及
(c)一与该节点B及该无线发射/接收单元通信的无线网络控制器,该无线网络控制器配置一增强上行链路无线存取承载电路以便在一增强专用信道上运作;从该无线发射/接收单元及该节点B至少之一接收该增强上行链路流量统计数据及增强上行链路性能统计数据;根据该接收的该增强上行链路流量统计数据及增强上行链路性能统计数据而调整该增强上行链路无线存取承载电路的配置。
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Cited By (1)
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CN109067923A (zh) * | 2012-06-25 | 2018-12-21 | 搜诺思公司 | 用于提供自动无线配置的***、方法、装置和制品 |
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DE202005006886U1 (de) | 2005-09-08 |
US8345644B2 (en) | 2013-01-01 |
KR101168769B1 (ko) | 2012-07-27 |
US20130107847A1 (en) | 2013-05-02 |
TW200537878A (en) | 2005-11-16 |
KR101527633B1 (ko) | 2015-06-09 |
US20160044658A1 (en) | 2016-02-11 |
KR20060047672A (ko) | 2006-05-18 |
TWI375442B (en) | 2012-10-21 |
TWM287545U (en) | 2006-02-11 |
AR048719A1 (es) | 2006-05-17 |
TW200943862A (en) | 2009-10-16 |
KR20120100848A (ko) | 2012-09-12 |
KR101393657B1 (ko) | 2014-05-13 |
KR101278392B1 (ko) | 2013-06-24 |
US20050243762A1 (en) | 2005-11-03 |
KR20060092957A (ko) | 2006-08-23 |
KR20110138203A (ko) | 2011-12-26 |
KR20130045293A (ko) | 2013-05-03 |
WO2005112296A2 (en) | 2005-11-24 |
KR101206190B1 (ko) | 2012-11-28 |
TW201246863A (en) | 2012-11-16 |
WO2005112296A3 (en) | 2008-08-21 |
US9173204B2 (en) | 2015-10-27 |
TWI505677B (zh) | 2015-10-21 |
TWI377823B (en) | 2012-11-21 |
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