CN1943159B - 用于信道资源分配的方法及无线发射/接收单元 - Google Patents
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Abstract
在一种无线通信系统包含无线发射/接收单元(WTRU)与至少一B节点中,使用一种方法与装置选择性启动在该无线发射/接收单元与该B节点之间所建立的至少一下行链路(DL)增强型上行链路(EU)信令信道的接收。在增强型专用信道(E-DCH)的操作期间,该无线发射/接收单元只有在需要的时候,根据无线发射/接收单元所知道的至少一建立标准过程,监视在该无线发射/接收单元与该B节点间所建立的至少一下行链路增强型上行链路信令信道。该无线发射/接收单元依照建立标准过程,协调与合并由该无线发射/接收单元所实行的多个信道分配及/或数据传输程序的下行链路信令信道接收需求。该无线发射/接收单元根据该合并的下行链路信令信道接收需求,决定是否启动至少一特定下行链路信令信道的接收。
Description
技术领域
本发明与一种包含无线发射/接收单元(WTRU)与至少一B节点的无线通信系统有关。更特别的,本发明是用于选择性地启动建立在该WTRU与该B节点之间的下行链路(DL)增强型上行链路(EU)信令信道接收的方法与装置。
背景技术
在第三代移动通信合作计划(3GPP)的R6版本中,研究了用于改善上行链路(UL)覆盖、处理能力与传输延迟的方法。为了成功地实施这些方法,UL无线资源的调度与分派,已经从一无线网络控制器(RNC)移至一B节点,因此即使该无线网络控制器保持遍及对该B节点的控制,该B节点比起该无线网络控制器,可更有效率地在一短期基础上,制订决策并管理UL无线资源。
增强型上行链路操作需要通过下链下行链路增强型上行链路信令信道,向该无线发射/接收单元传送例如上行链路信道分配与传输反馈信息的信息。该无线发射/接收单元监视该下行链路增强型上行链路信令信道,用以信道分配与传输反馈信息的接收。
其需要一种用以控制该下行链路增强型上行链路信令信道的方法与装置,并只在其需要时启动。
发明内容
本发明与用于增强型上行链路操作期间,选择性启动至少一下行链路增强型上行链路信令信道接收的方法及装置有关。在增强型专用信道操作期间,无线发射/接收单元只有在其需要的时候,根据WTRU知道的该至少一建立标准过程,监视在该无线发射/接收单元与该B节点之间,所建立的至少一下行链路增强型上行链路信令信道。该无线发射/接收单元依据建立的标准过程来协调(coordinate)与合并(consolidate),由该无线发射/接收单元所执行的多个信道分配及/或数据传输过程的下行链路信令信道接收需求。该无线发射/接收单元根据该合并下行链路信令信道接收需求,决定是否启动至少一特定下行链路信令信道的接收。
与本发明一致,在增强型上行链路操作期间,该无线发射/接收单元不需要连续地启动该下行链路增强型上行链路信令信道的接收。取代的是,该无线发射/接收单元可以选择性的开启或关闭(换言之,启动或禁用),至少一特定下行链路增强型上行链路信令信道的接收,因此减少无线发射/接收单元处理需要,并减少该下行链路信令误释的可能性。
附图说明
为对本发明更更清楚了解,下面将结合附图对本发明的优选实施例进行具体说明,其中:
图1是与本发明一致的一无线通信系统操作方框示意图;
图2是与本发明的一实施例一致,当该无线发射/接收单元传送一强型上行链路信道分配请求,并期望接收调度信息时,在增强型上行链路操作期间中,选择性启动至少一下行链路增强型上行链路信令信道的接收方法与步骤的处理流程图;以及
图3是与本发明的另一实施例一致,当该无线发射/接收单元传送增强型专用信道数据,并期望接收反馈信息时,包含选择性启动至少一下行链路增强型上行链路信令信道的接收方法与步骤的处理流程图。
具体实施方式
此后,该术语“无线发射/接收单元”包含但不限制为一用户配备(UE)、一移动站、一固定式或移动式用户单元、一寻呼机,或任何具有在无线环境中操作的装置形式。而在之后,该术语“B节点”包含但不限制为一基地站、一位置控制器、一接入点,或任何具有在无线环境中操作的接口装置形式。
本发明的特征可与一成电路(IC)结合,或配置在包括多个互连组件的一路中。
图1是与本发明一致的一无线通信系统100操作方框示意图。该系统100包含一无线发射/接收单元(WTRU)102、至少一B节点104与一无线网络控制器(RNC)106。该无线发射/接收单元102包含一增强型专用信道(E-DCH)数据缓存器112、一物理接收控制实体114、一接收机116、一发射机118、一处理器120与一标准数据库122。
位于该无线发射/接收单元102中的该发射机118,通过用于增强型上行链路(EU)至该B节点104的一上行链路增强型上行链路信道108,传输一个增强型上行链路信道分配请求(换言之,速率请求)至该B节点104。该增强型上行链路信道分配请求可以包含调度信息。该调度信息可以包含储存于该无线发射/接收单元102的该缓存器112中的增强型专用信道传输量测量(TVM)信息,以及可用的增强型上行链路传输功率信息。
在传输该增强型上行链路信道分配请求之后,该无线发射/接收单元102中的该接收机116,通过该物理接收控制实体114,监视多个下行链路(DL)增强型上行链路信令信道1101、1102、…、110N以获得信道分配信息。该B节点104利用通过该下行链路增强型上行链路信令信道1101-N之一的上行链路信道分配信息,响应该上行链路信道分配请求。
该系统100配置为使上行链路信令与增强型专用信道数据两者,都通过该上行链路增强型上行链路信道108,从该无线发射/接收单元102传输至该B节点104。在从该B节点104,至少通过该下行链路增强型上行链路信令信道1101-N之一,接收用于信道分配的调度信息之后,位于该无线发射/接收单元102中的该发射机118,通过该分配的上行链路增强型上行链路信道108,传输增强型专用信道数据。该无线发射/接收单元102中的该接收机116,接着为了期望的增强型专用信道数据反馈信息,监视该下行链路增强型上行链路信令信道1101-N。
为了响应该接收的增强型专用信道数据,该B节点104通过该下行链路增强型上行链路信令信道1101-N,传输增强型专用信道数据反馈信息至该无线发射/接收单元102。该反馈信息包含应答(ACK)信息或非应答(NACK)信息之一,取决于该B节点104对由该无线发射/接收单元102通过该上行链路增强型上行链路信道108,所传送的该增强型专用信道数据的译码成功或失败。该B节点104也可以进一步传输信道分配信息,以响应该增强型专用信道数据传输。这样额外的信息也可包含在该反馈信息中,或是通过该下行链路增强型上行链路信令信道1101-N个别的传送。
在该无线发射/接收单元102中的该活动增强型上行链路过程状态,可以使用以提供该无线发射/接收单元102的该物理接收控制实体114的输入。该物理接收控制实体114与一物理层处理器通信,以选择性的启动与禁用该下行链路增强型上行链路信令信道1101-N的接收。
与本发明一致,该无线发射/接收单元102的物理接收控制实体114,当该无线发射/接收单元102已知的增强型上行链路信令过程不需要下行链路增强型上行链路信令信道1101-N时,便禁用(停止)该下行链路增强型上行链路信令信道1101-N的接收。在该无线发射/接收单元102不需要接收该下行链路增强型上行链路信令信道1101-N的期间中,该无线发射/接收单元102的处理要求与功率耗费便可减少,也可避免该下行链路信令的误释可能性。
图2是与本发明的一实施例一致,在增强型上行链路传输期间中,选择性启动至少一下行链路增强型上行链路信令信道的接收方法步骤的过程200流程图。在步骤202中,该无线网络控制器106配置该无线发射/接收单元102,以进行增强型专用信道操作,借此在该无线发射/接收单元102与该B节点104之间,建立该上行链路增强型上行链路信道108与该下行链路增强型上行链路信令信道1101-N。该无线发射/接收单元102不需要在该无线发射/接收单元102中的配置之后便立即的启动其下行链路增强型上行链路信令信道1101-N的接收。因此,该无线发射/接收单元102的物理接收控制实体114,禁用该下行链路增强型上行链路信令信道1101-N的接收。
仍然参考图2,在步骤202配置该无线发射/接收单元102用以增强型专用信道操作之后,该无线发射/接收单元102监视其增强型专用信道数据的缓存器112(步骤204)。如果,在步骤206,该无线发射/接收单元102决定在该缓存器112中没有任何的增强型专用信道数据,该无线发射/接收单元102便继续监视该缓存器112,且在步骤204的该下行链路增强型上行链路信令信道1101-N接收,仍旧维持禁用。如果,在步骤206,该无线发射/接收单元102决定在该缓存器112中,有等待通过该上行链路增强型上行链路信道108传输的增强型专用信道数据(换言之,队列),该无线发射/接收单元102通过该上行链路增强型上行链路信道108,传输带有或未带有增强型专用信道数据的一增强型上行链路信道分配请求至该B节点104,并启动至少一下行链路增强型上行链路信令信道1101-N的接收(步骤208)。该无线发射/接收单元102在一预定或计算的延迟之后,可以选择性的启动下行链路增强型上行链路信令信道1101-N的接收。该增强型上行链路信道分配请求可以包含调度信息,例如TVM信息、以及可用的增强型上行链路传输功率信息。
操作增强型专用信道需要由该B节点调度,以及响应由该无线发射/接收单元102传输的一增强型上行链路信道分配请求,而用信号通知该无线发射/接收单元102的无线资源分配。根据建立的信令过程,该无线发射/接收单元102根据指示何时由该无线发射/接收单元102传输的该增强型上行链路信道分配请求,保持追踪(keep track of)至少一下行链路增强型上行链路信令信道1101-N何时从该B节点接收所需要或期望包含增强型上行链路信道分配的该增强型专用信道数据传输调度信息(步骤210)。
在步骤212中,该无线发射/接收单元102通过该下行链路增强型上行链路信令信道1101-N,从该B节点104接收该需要或期望的调度信息,并接着如果没有任一实体要求,该物理接收控制实体114禁用该下行链路增强型上行链路信令信道1101-N的接收。可选择的,在步骤214中,该无线发射/接收单元102根据如果配置周期性接收的下行链路增强型上行链路信令信道调度信息,调度该下行链路增强型上行链路信令信道1101-N的接收。该下行链路增强型上行链路信令信道1101-N的接收,是取决于在该无线发射/接收单元102中,哪个增强型上行链路信令过程为活动的而被启动。
图3是与本发明的另一实施例一致,当该无线发射/接收单元102传送增强型专用信道数据,并期望接收反馈信息时,包含选择性启动至少一下行链路增强型上行链路信令信道1101-N的接收方法步骤的过程300流程图。在步骤302中,该无线网络控制器106配置该无线发射/接收单元102,以进行增强型专用信道操作,借此在该无线发射/接收单元102与该B节点104之间,建立该上行链路增强型上行链路信道108与该下行链路增强型上行链路信令信道1101-N。该无线发射/接收单元102不需要在该无线发射/接收单元102的E-DCH操作配置之后便立即的启动其下行链路增强型上行链路信令信道1101-N的接收。因此,该无线发射/接收单元102的物理接收控制实体114,禁用该下行链路增强型上行链路信令信道1101-N的接收。
仍然参考图3,在步骤302配置该无线发射/接收单元102用以执行增强型专用信道操作之后,该无线发射/接收单元102监视其增强型专用信道数据的缓存器112(步骤304)。如果,在步骤206,该无线发射/接收单元102决定在该缓存112中没有任何的增强型专用信道数据,该无线发射/接收单元102便继续监视该缓存112,且在步骤304的该下行链路增强型上行链路信令信道1101-N接收,仍旧维持禁用。
过程300的步骤308、310、312与314,可以针对在该无线发射/接收单元102中并行操作的多个混合自动重复请求(H-ARQ)进程中的每个而执行。如果,在步骤306,该无线发射/接收单元102决定有等待通过该上行链路增强型上行链路信道108传输的增强型专用信道数据(换言之,队列),为了每个混合自动重复请求进程,该无线发射/接收单元102通过该上行链路增强型上行链路信道108,传输带有或未带有增强型专用信道数据的一增强型上行链路信道分配请求至该B节点104,并启动下行链路增强型上行链路信令信道1101-N的接收(步骤308)。该无线发射/接收单元102在一预定或计算的延迟之后,可以选择性的启动下行链路增强型上行链路信令信道110内的接收。
根据建立的信令过程,该无线发射/接收单元102为了每个混合自动重复请求进程,保持追踪何时需要或期望从该B节点104接收所的反馈信息(步骤310)。在步骤312中,该无线发射/接收单元102从该B节点104接收反馈信息,且如果不被任何实体需要时,禁用该下行链路增强型上行链路信令信道1101-N的接收。可选择的,在步骤314中,该无线发射/接收单元102根据如果配置周期性接收的反馈信息,调度该下行链路增强型上行链路信令信道1101-N的接收。特定下行链路增强型上行链路信令信道1101-N的接收,是取决于在该无线发射/接收单元102中,哪个增强型上行链路信令步骤为活动的而被启动。
该无线发射/接收单元102根据指示何时由该无线发射/接收单元102传输该增强型专用信道数据的信息,保持追踪何时在下行链路增强型上行链路信令信道1101-N上,接收所需要或期望包含增强型上行链路信道分配的调度信息。下行链路增强型上行链路信令信道1101-N也为了增强型专用信道传输,被使用以从该B节点104提供反馈信息至该无线发射/接收单元102。因为传输至该无线发射/接收单元的反馈是响应于该无线发射/接收单元的一特定动作,在该无线发射/接收单元的反馈信息接收时间可由该无线发射/接收单元正确的决定。由该B节点104通过下行链路增强型上行链路信令信道1101-N所传输的反馈信息,可由混合自动重复请求应答和/或上行链路信道分配信息所组成。无线发射/接收单元接收反馈信道的范例,可以是在第三代移动通信合作计划的混合自动重复请求信息信道(HICH)与相对授权信道(RGCH)或绝对授权信道(AGCH)。
该混合自动重复请求操作可以是同步或不同步。在同步操作中,该无线发射/接收单元102精确的知道,该无线发射/接收单元102何时可以通过该下行链路增强型上行链路信令信道1101-N接收反馈(ACK或NACK),且该无线发射/接收单元102根据一预配置的调度而启动该下行链路增强型上行链路信令信道1101-N的接收。用非同步混合自动重复请求操作,该无线发射/接收单元102为了接收该反馈,在增强型上行链路传输之后的一预定期间,启动该下行链路增强型上行链路信令信道1101-N的接收。
信道分配反馈也可在下行链路增强型上行链路信令信道1101-N上,从该B节点104传输至该无线发射/接收单元102。该无线发射/接收单元102也可为了此信道分配反馈信息,启动该下行链路增强型上行链路信令信道1101-N的接收。该无线发射/接收单元102所知道的增强型上行链路信道分配过程,使得该无线发射/接收单元102能够调度此信息的接收。该信道分配反馈可以与该混合自动重复请求反馈同步,在一预定期间中传送,或是该无线发射/接收单元102可具有一特定周期重复的调度接收。
如果该无线发射/接收单元102并未传送一信道分配请求至该B节点104,但所有之前由该无线发射/接收单元102传送的增强型上行链路数据传输请求,已经被该B节点104所处理,并且为了所有未完成的混合自动重复请求传输,已经从该B节点接收反馈信息,则该无线发射/接收单元102便禁用该下行链路增强型上行链路信令信道1101-N的接收。
在一实施例中,该无线发射/接收单元102通过至少一上行链路信道108,传送至少一信道分配请求至多个B节点104,而该B节点响应该信道分配请求的接收,通过个别的下行链路增强型上行链路信令信道1101-N,传送信道分配信息至该无线发射/接收单元102。
在该无线发射/接收单元102中的处理器120,依据存储在该标准数据库122中的该至少一建立的标准过程,协调与合并由该无线发射/接收单元102所实行的多个信道分配步骤的下行链路信令信道接收需求,以基于该合并下行链路信令信道接收需求,决定是否启动至少一特定下行链路信令信道的接收。该增强型专用信道数据缓存器112与该处理器120通信,并排列由该无线发射/接收单元102,通过至少一上行链路信道108,传送至该B节点104的至少一数据传输中所包含的数据。该发射机118与该处理器通信,并传送该至少一数据传输至该B节点104。该接收机116与该处理器120通信,并通过该下行链路信令信道1101-N,从该B节点104接收数据传输反馈信息。该物理接收控制实体114与该处理器120及该接收机116通信。该物理接收控制实体114根据由该处理器产生的决定,启动或禁用特定下行链路信令信道1101-N的接收。
在另一实施例中,该无线发射/接收单元102通过至少一上行链路信道108,传送至少一信道信道分配请求与增强型专用信道数据,至多个B节点104,而该B节点响应该至少一信道信道分配请求与增强型专用信道数据的接收,通过个别的下行链路信令信道1101-N,传送与该增强型专用信道数据有关的信道分配信息与数据反馈信息,至该无线发射/接收单元102。
在该无线发射/接收单元102中的处理器120,依据存储在该标准数据库122中的该至少一建立的标准过程,协调与合并由该无线发射/接收单元102所实行的多个信道分配步骤与数据传输步骤的下行链路信令信道接收需求,以基于该合并下行链路信令信道接收需求,决定是否启动至少一特定下行链路信令信道的接收。该标准数据库122与该处理器120通信,并提供给该处理器120关于至少一建立标准步骤的数据。该发射机118与该处理器通信,并通过至少一上行链路信道108,传送该至少一信道分配请求与增强型专用信道数据至该B节点104。该接收机116与该处理器120通信,并通过该下行链路信令信道1101-N,从该B节点104接收信道分配信息。该物理接收控制实体114与该处理器120及该接收机116通信。该物理接收控制实体114根据由该处理器产生的决定,启动或禁用特定下行链路信令信道1101-N的接收。
虽然本发明的特征与组件,已经以特定的结合于该优选实施例中叙述,每个特征或组件,可不与该优选实施例的其它特征或组件一起而被单独使用,或是与发明的其它特征或组件,一起或不一起产生不同的结合。
Claims (10)
1.一种在无线发射/接收单元(WTRU)中实施的用于信道资源分配的方法,该方法包括:
在上行链路(UL)增强型上行链路(EU)信道上传送增强型上行链路信道分配请求,其中所述分配请求包括调度信息;
监视多个下行链路(DL)增强型上行链路信令信道;
通过所述下行链路增强型上行链路信令信道中的至少一个下行链路增强型上行链路信令信道接收信道分配信息;
在所述无线发射/接收单元已知的至少一个信令过程不需要下行链路增强型上行链路信令信道的情况下,禁用所述下行链路增强型上行链路信令信道的接收;以及
根据所述无线发射/接收单元已知的至少一个建立的信令过程来管理由所述无线发射/接收单元执行的多个信道分配过程的下行链路增强型上行链路信令信道接收需求。
2.根据权利要求1所述的方法,该方法还包括:
传送上行链路信令数据;以及
通过所述上行链路增强型上行链路信道传送增强型专用信道(E-DCH)数据。
3.根据权利要求1所述的方法,该方法还包括:
为获取增强型专用信道(E-DCH)数据反馈信息而监视所述下行链路增强型上行链路信令信道;以及
通过所述下行链路增强型上行链路信令信道中的至少一个下行链路增强型上行链路信令信道接收增强型专用信道数据反馈信息,该增强型专用信道数据反馈信息包括应答消息(ACK)或非应答(NACK)消息。
4.根据权利要求1所述的方法,其中所述调度信息包括以下任意一者:
存储在缓存器中的增强型专用信道(E-DCH)数据的传输量测量信息;以及
可用的增强型上行链路传送功率信息。
5.根据权利要求2所述的方法,该方法包括响应于通过所述上行链路增强型上行链路信令信道所传送的增强型专用信道数据,而进一步通过所述下行链路增强型上行链路信令信道接收信道分配信息。
6.一种被配置用于信道资源分配的无线发射/接收单元(WTRU),该无线发射/接收单元包括:
用于在上行链路(UL)增强型上行链路(EU)信道上传送增强型上行链路信道分配请求的装置,其中所述分配请求包括调度信息;
用于监视多个下行链路(DL)增强型上行链路信令信道的装置;
用于通过所述下行链路增强型上行链路信令信道中的至少一个下行链路增强型上行链路信令信道接收信道分配信息的装置;
用于在所述无线发射/接收单元已知的至少一个信令过程不需要下行链路增强型上行链路信令信道的情况下,禁用所述下行链路增强型上行链路信令信道的接收的装置;以及
用于根据所述无线发射/接收单元已知的至少一个建立的信令过程来管理由所述无线发射/接收单元执行的多个信道分配过程的下行链路增强型上行链路信令信道接收需求的装置。
7.根据权利要求6所述的无线发射/接收单元,该无线发射/接收单元还包括:
用于传送上行链路信令数据的装置;以及
用于通过所述上行链路增强型上行链路信道传送增强型专用信道(E-DCH)数据的装置。
8.根据权利要求6所述的无线发射/接收单元,该无线发射/接收单元还包括:
用于为获取增强型专用信道(E-DCH)数据反馈信息而监视所述下行链路增强型上行链路信令信道的装置;以及
用于通过所述下行链路增强型上行链路信令信道中的至少一个下行链路增强型上行链路信令信道接收增强型专用信道数据反馈信息的装置,该增强型专用信道数据反馈信息包括应答消息(ACK)或非应答(NACK)消息。
9.根据权利要求6所述的无线发射/接收单元,其中所述调度信息包括以下任意一者:
存储在缓存器中的增强型专用信道(E-DCH)数据的传输量测量信息;以及
可用的增强型上行链路传送功率信息。
10.根据权利要求7所述的无线发射/接收单元,该无线发射/接收单元包括用于响应于通过所述上行链路增强型上行链路信令信道所传送的增强型专用信道数据,而进一步通过所述下行链路增强型上行链路信令信道接收信道分配信息的装置。
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JP5242035B2 (ja) * | 2006-10-03 | 2013-07-24 | 株式会社エヌ・ティ・ティ・ドコモ | 基地局および再送制御方法 |
KR101527109B1 (ko) * | 2009-01-06 | 2015-06-08 | 삼성전자주식회사 | 무선통신시스템에서 채널 할당 장치 및 방법 |
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