CN2794054Y - 实现用于增强专用信道传输的数据寿限定时器的装置 - Google Patents
实现用于增强专用信道传输的数据寿限定时器的装置 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
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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
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- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- 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
- H04L1/1607—Details of the supervisory signal
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Abstract
一种无线通信系统,其支持增强专用信道(E-DCH)数据传输,并包含一无线传输/接收单元(WTRU),至少一节点B,以及一无线网络控制器(RNC)。该WTRU包含一缓冲区、一数据寿限定时器、一数据重新传输计数器、一混合自动重复请求(H-ARQ)程序以及一控制器。该定时器为储存于该缓冲区内的至少一数据区块建立一寿限。如果物理资源尚未配置给一寿限定时器接近到期的数据区块,则该WTRU会送出一紧急信道配置请求,如果物理资源已经被配置,相对于其它数据区块,则优先化该数据区块传输。如果该寿限定时器已经到期,或是如果该WTRU接收反馈信息而指示该数据区块已经成功地由该节点B所接收,则该数据区块会被丢弃。
Description
技术领域
本实用新型是关于一种无线通信系统,其包含至少一无线传输/接收单元(WTRU)、至少一节点B以及一无线网络控制器(RNC)。本实用新型尤其是关于一种支持增强专用信道(E-DCH)传输的数据寿限定时器。
背景技术
用以改善上行链路(UL)覆盖、生产能力以及传输等待时间的方法,现今在第三代伙伴计划(3GPP)第6版(R6)中已经有所研究。为了达成这些目标,节点B将接管排程(scheduling)和分派上行链路资源给WTRUs的责任,节点B能做出更有效率的决定,且管理以短程为基础的无线资源会比RNC更好,RNC仍然保持着对具有增强上行链路(EU)的蜂窝的一般性整体控制,以便该RNC能执行类似呼叫许可控制以及拥挤控制等功能。
混合自动重复请求(H-ARQ)技术提供一种程序,用以产生具有低等待时间的传输和重新传输。H-ARQ技术的一个主要方向在于,在失效传输时所接收的数据被平稳地与连续重新传输组合,以便增加成功接收的机率。
当传输时使用H-ARQ机制以及节点B排程时,成功传输数据所需要的时间会有所不同,明显地延迟传输会对仅需要非常低等待时间的传输应用程序带来不利的影响,举例来说,延迟的数据可当作为失效的传输,且该应用程序会以非必要重新传输作结束,因此,便需要一种限制传输等待时间的机制。
发明内容
本实用新型是在一个支持E-DCH数据传输的无线通信系统中执行,该无线通信系统包含一无线传输/接收单元(WTRU)、至少一节点B以及一无线网络控制器(RNC)。该WTRU包含一数据缓冲区、一数据寿限定时器、一数据重新传输计数器、一混合自动重复请求(H-ARQ)程序以及一控制器。该数据寿限定时器为至少一个储存于该缓冲区的数据区块建立寿限,该WTRU被配置来(i)周期性判定该寿限定时器是否已经到期;(ii)判定该数据区块是否先前已传输过;(iii)判定该寿限定时器是否即将到期;以及(iv)判定物理资源是否已经配置。如果物理资源尚未配置给寿限定时器即将到期的数据区块,该WTRU会送出一紧急信道配置请求给该节点B,如果物理资源已经配置,则该数据区块相对于其它数据区块在传输上会优先化。如果该寿限定时器到期,或是如果该WTRU接收到反馈信息指示该数据区块未被该节点B成功地接收,则该数据区块将被摒弃。
附图说明
通过下文中一较佳实施例的描述、所给予的范例,参照对应的附图,本实用新型可获得更详细地了解,其中:
图1为根据本实用新型的无线通信系统操作的一方块图;以及
图2为根据本实用新型在图1的系统的WTRU中,实施数据寿限定时器的程序流程图。
具体实施方式
此后,专用术语“WTRU”包含但并未限制于一用户设备(UE)、一移动台、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。当本文此后提到专用术语“节点B”,其包含但并不限制于一基地台、一站台控制器、一访问点或是在无线环境下其它任何类型的接口装置。
本实用新型的特征可整合至一集成电路(IC),或是配置在包含许多相互连接组件的电路上。
图1为根据本实用新型的无线通信系统100的方块图,该系统100包含至少一WTRU 102,至少一节点B 104以及至少一RNC 106。该WTRU 102包含一控制器122、一数据寿限定时器124、一缓冲区126以及多个H-ARQ程序128,并选择性地具有一重新传输计数器130。该控制器122控制整体数据传输步骤,其包含初始该数据寿限定时器124以及一H-ARQ程序128的配置。
该RNC 106通过配置该节点B 104及该WTRU 102的WU参数,以控制该系统100的整体EU操作,该参数有例如输传送信道(TrCH)或逻辑信道数据的寿限、初始传输功率等级、最大允许EU传输功率或是每一节点B 104的空余信道资源。E-DCH被建立以支持介于该WTRU 102及该节点B 104之间的EU传输。
关于该E-DCH传输方面,该WTRU 102经由一UL EU信号信道110送出一信道配置请求至该节点B 104,该信道配置请求(或是其它UL EU信号),可经由该E-DCH 108而非该UL EU信号信道110传输,而在响应方面,该节点B 104会经由一下行链路(DL)EU信号信道112送出信道配置请求信息至该WTRU 102,在EU无线资源配置给该WTRU 102之后,该WTRU 102会经由一E-DCH 108传输数据。在响应该E-DCH数据传输方面,该节点B 104会经由该DI EU信号信道112送出一H-ARQ操作的确认(ACK)或是非确认(NACK)信息。
图2为一根据本实用新型的程序200的流程图,其是在用以支持E-DCH传输的WTRU 102中执行一数据寿限定时器124。该WTRU 102可使用多个数据寿限定时器124,同时处理多重E-DCH传输。
当经由该E-DCH 108所传输的一个新的数据区块被接收之后,该控制器122激活该数据区块的一数据寿限定时器124,并结合于一H-ARQ程序128与该数据区块,且新的数据区块于该缓冲区126中等待(步骤202)。该RNC为每一E-DCH TrCH或是每一E-DCH逻辑信道配置数据寿限,根据UL传输是在MAC或是RLC被接收,对每一传输个初始化该定时器。
E-DCH数据寿限定时器124之值可由该WTRU 102的该控制器122决定,其会考虑几个因素,例如最大允许传输等待时间、RLC配置、TrCH区块错误率(BLER)请求等等,举例来说,该最大允许等待时间决定该数据在传输之前可在缓冲区停留多久时间。除此之外,该BLER决定H-ARQ重新传输的数量,其会影响传输等待时间。分派给该数据寿限定时器124之值亦可考虑WTRU数据处理,其是在WTRU102的EU介质访问控制入口(MAC-e)进行外部处理。
应用程序通讯协议(例如TCP/IP)需要最小的传输等待时间,以及传输等待中最小的变化,以便达成最大的生产力。当传输延迟发生时,数据将被预期为失败或是摒弃,而不是延迟以及重新传输,此将导致该应用程序的非有效的行为。
在步骤204中,对于每一TTI,该控制器122会判定在WTRU 102的缓冲区126中,该数据区块的数据寿限定时器124是否到期(步骤206)。如果该数据寿限定时器124已经到期,该控制器122会摒弃该数据区块,并且释放出相关连的H-ARQ程序128(步骤208),该WTRU 102可向RNC 106或是节点B 104报告此事件(步骤210),该WTRU 102可更进一步向节点B 104报告,通过送出一具有特定指示的信道配置请求,以说明该物理资源配置并不充足。
回到步骤206,如果该数据区块的数据寿限定时器124尚未到期,控制器122判定在WTRU 102的缓冲区126中的数据区块,先前是否已经由WTRU 102传输过(步骤212),如果该数据区块先前已经传输过,就会更进一步判定与该数据区块相关的数据反馈信息是否已经由该节点B所接收(步骤214),如果指示该数据区块传输成功的确认信息(ACK),则该数据区块会从该缓冲区126中移除,而相关连的H-ARQ程序128会可利用来以便支持其它数据区块,且该数据寿限定时器会重新设定(步骤216),如果没有收到反馈信息,该WTRU 102会等待该反馈信息,直到下一个TTI为止(步骤218)。
在步骤212,如果判定该数据区块先前未由WTRU 102所传输,或是该数据区块已经传输,但却收到只是该数据区块传输失败的非确认信息(NACK),则会重新传输该数据区块。控制器122判定该数据区块的该数据寿限定时器是否已经接近到期,如果该数据寿限定时器124尚未接近到期,则一个标准的H-ARQ操作被初始化以传输该数据区块(步骤222)。
在步骤224中,当该数据寿限定时器124接近到期时,该控制器122会判定物理资源是否已经被配置(步骤224),如果物理资源已经被配置,控制器122可选择性地将该数据区块的传输优先化(步骤226),如果物理资源尚未被配置,该控制器122可选择性地送出一紧急信道配置请求至该节点B,以便支持该数据区块的传输(步骤228)。
回到步骤214,如果未收到NACK信息,则该数据区块会被重新传输,该控制器122可判定该重新传输计数器130是否已经达到最大重新传输限制(步骤230),每一次该数据区块重新传输,该重新传输计数器130便会增额,而且该最大重新传输限制系由该RNC所设定。如果该重新传输计数器130尚未达到最大重新传输限制,程序200会进行步骤220,如果该重新传输计数器130已经达到最大传输限制,只要该数据区块的该数据寿限定时器124尚未到期,控制器122便会重新初始该H-ARQ程序128(步骤232),该重新传输计数器130会被初始化且一新的数据指示器会增额,以便指示该H-ARQ程序128的重新初始化。
尽管本实用新型的特征和组件皆在实施例中以特定组合方式所描述,但实施例中每一特征或组件能独自使用,而不需与其它特征或组件组合,亦能与/不与本实用新型的其它特征和组件做不同的组合。
Claims (34)
1.一种无线传输/接收单元WTRU,其使用至少一个数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一个WTRU以及至少一个节点B的无线通信系统中,该WTRU包含:
(a)一个缓冲区,用以储存一数据区块;
(b)一个数据寿限定时器,用以建立该数据区块的一个寿限;以及
(c)一个控制器,连接至至该缓冲区以及该数据寿限定时器,其中当该数据寿限定时器到期时,该控制器丢弃该数据区块。
2.如权利要求1所述的WTRU,进一步包含:
(d)一混合自动重复请求H-ARQ程序,其由该控制器分派,用以支持该数据区块的传输,其中当该数据寿限定时器到期时,该控制器会释放该H-ARQ程序。
3.如权利要求2所述的WTRU,其中该WTRU送出一信息至一节点B,以指示该数据区块已经被丢弃且可利用该H-ARQ程序。
4.如权利要求1所述的WTRU,其中该WTRU送出一信息至一无线网络控制器RNC,以指示该数据寿限定时器已经到期。
5.如权利要求1所述的WTRU,其中如果该数据区块先前已被传输,且该数据寿限定时器尚未接近到期,则该控制器会为了该数据区块的传输而初始化一个标准混合自动重复请求H-ARQ操作。
6.如权利要求1所述的WTRU,其中该无线通信系统进一步包含:一无线网络控制器RNC,其对该数据寿限定时器进行配置。
7.如权利要求6所述的WTRU,其中该数据寿限定时器为多个传送输信道TrCHs中的每一个进行配置。
8.如权利要求6所述的WTRU,其中该数据寿限定时器为多个逻辑信道中的每一个进行配置。
9.如权利要求1所述的WTRU,其中该控制器设定该数据寿限定时器是基于至少下列其中之一:最大允许传输等待时间、已建立的无线连结控制RLC配置以及传送信道数据区块错误率BLER。
10.如权利要求1所述的WTRU,其中该控制器周期性地判定该数据寿限定时器是否过期。
11.一种无线传输/接收单元WTRU,使用至少一个数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一个节点B的无线通信系统中,该WTRU包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一个寿限;以及
(c)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中当WTRU接收反馈信息,以指示该数据区块已经成功地由该节点B接收时,该控制器会在该数据寿限定时器到期前丢弃该数据区块。
12.如权利要求11所述的WTRU,其中当该WTRU接收该反馈信息,以指示该数据区块已经成功地由该节点B接收时,该控制器重新设定该数据区块寿限定时器。
13.如权利要求11所述的WTRU,进一步包含:
(d)一混合自动重复请求H-ARQ程序,其由该控制器分派,以支持该数据区块的传输,其中当该WTRU接收该反馈信息,以指示该数据已成功地由该节点B接收时,该控制器会释放该H-ARQ程序。
14.一种无线传输/接收单元WTRU,其使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一节点B的一无线通信系统中,该WTRU包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;
(c)一混合自动重复请求H-ARQ程序,用以支持该数据区块的传输;以及
(d)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中该控制器激活该数据寿限定时器并分派该H-ARQ程序给该数据区块,其中(i)如果该数据区块先前已被传输但未成功地由该节点B接收,该控制器判定是否已经达到一建立的重新传输限制,(ii)如果该控制器判定已经到达该重新传输限制,且该寿限定时器并未到期,则该控制器重新初始该H-ARQ程序,以及(iii)如果该重新传输限制尚未到达,且该数据寿限定时器尚未接近到期时,该控制器便为了该数据区块的传输,初始化一个标准H-ARQ操作。
15.一种无线传输/接收单元WTRU,其使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一节点B的一无线通信系统中,该WTRU包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;
(c)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中当该寿限定时器接近到期时,该控制器判定物理资源是否已经被配置,用以支持该数据区块的传输。
16.如权利要求15所述的WTRU,其中如果该控制器判定该物理资源尚未被配置,则该WTRU送出一紧急信道配置请求至该节点B,以支持该数据区块的传输。
17.如权利要求15所述的WTRU,其中如果该控制器判定该物理资源已经被配置,则该控制器将相对于其它数据区块,优先化该数据区块传输。
18.一种在一无线传输/接收单元WTRU内的集成电路IC,该WTRU使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含至少一WTRU以及至少一节点B的一无线通信系统中,该IC包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;以及
(c)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中当该数据寿限定时器到期时,该控制器丢弃该数据区块。
19.如权利要求18所述的IC,更包含:
(d)一混合自动重复请求H-ARQ程序,其由该控制器分派,用以支持该数据区块的传输,其中当该数据寿限定时器到期时,该控制器会释放该H-ARQ程序。
20.如权利要求19所述的IC,其中该WTRU送出一信息至一节点B,以指示该数据区块已经被丢弃且可利用该H-ARQ程序。
21.如权利要求18所述的IC,其中该WTRU送出一信息至一无线网络控制器RNC,以指示该数据寿限定时器已经到期。
22.如权利要求18所述的WTRU,其中如果该数据区块先前已被传输,且该数据寿限定时器尚未接近到期,则该控制器会为了该数据区块的传输而初始化一个标准混合自动重复请求H-ARQ操作。
23.如权利要求18所述的IC,其中该无线通信系统进一步包含:一无线网络控制器RNC,以设定该数据寿限定时器的配置。
24.如权利要求23所述的IC,其中该数据寿限定时器为多个传送信道TrCHs中的每一个进行配置。
25.如权利要求23所述的IC,其中该数据寿限定时器为多个逻辑信道中的每一个进行配置。
26.如权利要求18所述的IC,其中该控制器设定该数据寿限定时器是基于至少下列其中之一:一最大允许传输等待时间、一已建立无线连结控制RLC配置以及一传送信道区块错误率BLER。
27.如权利要求18所述的IC,其中该控制器周期性地判定该数据寿限定时器是否过期。
28.一种在一无线传输/接收单元WTRU内的集成电路IC,该WTRU使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一节点B的一无线通信系统中,该IC包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;以及
(c)一控制器,其连接至至该缓冲区以及该数据寿限定时器。其中当WTRU接收反馈信息,以指示该数据区块已经成功地由该节点B接收时,该控制器会在该数据寿限定时器到期前丢弃该数据区块。
29.如权利要求28所述的IC,其中当该WTRU接收该反馈信息,以指示该数据区块已经成功地由该节点B接收时,该控制器重新设定该数据区块寿限定时器。
30.如权利要求28所述的IC,进一步包含:
(d)一混合自动重复请求H-ARQ程序,由该控制器分派,以支持该数据区块的传输,其中当该WTRU接收该反馈信息,以指示该数据已成功地由该节点B接收时,该控制器会释放该H-ARQ程序。
31.一种在无线传输/接收单元WTRU内的集成电路IC,该WTRU使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一节点B的一无线通信系统中,该IC包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;
(c)一混合自动重复请求H-ARQ程序,用以支持该数据区块的传输;以及
(d)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中该控制器激活该数据寿限定时器并分派该H-ARQ程序给该数据区块,其中(i)如果该数据区块先前已被传输但未成功地由该节点B接收,该控制器判定是否已经达到一建立的重新传输限制,(ii)如果该控制器判定已经到达该重新传输限制,且该寿限定时器并未到期,则该控制器重新初始该H-ARQ程序,以及(iii)如果该重新传输限制尚未到达,且该数据寿限定时器尚未接近到期时,该控制器便为了该数据区块的传输,初始化一标准H-ARQ操作。
32.一种在无线传输/接收单元WTRU内的集成电路IC,该WTRU使用至少一数据寿限定时器,用以支持增强专用信道E-DCH数据传输,而在包含一WTRU以及至少一节点B的一无线通信系统中,该IC包含:
(a)一缓冲区,用以储存一数据区块;
(b)一数据寿限定时器,用以建立该数据区块的一寿限;
(c)一控制器,其连接至至该缓冲区以及该数据寿限定时器,其中当该寿限定时器接近到期时,该控制器判定物理资源是否已经被配置,用以支持该数据区块的传输。
33.如权利要求32所述的IC,其中如果该控制器判定该物理资源尚未被配置,则该WTRU送出一紧急信道配置请求至该节点B,以支持该数据区块的传输。
34.如权利要求32所述的IC,其中如果该控制器判定该物理资源已经被配置,则该控制器将相对于其它数据区块,优先化该数据区块传输。
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CN101682467B (zh) * | 2007-03-20 | 2014-08-06 | 诺基亚公司 | 无线网络中的自适应调制 |
CN101938834B (zh) * | 2009-07-01 | 2012-11-21 | 鼎桥通信技术有限公司 | 增强专用信道的混合自动重传确认指示信道的配置方法 |
CN106877920A (zh) * | 2015-11-13 | 2017-06-20 | 空中客车运作有限责任公司 | 用于传送优先化数据的方法和发射器 |
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