TWI517625B - 用於非期望下行次圖框之混合式自動重送請求-確認(harq-ack)處 理技術 - Google Patents
用於非期望下行次圖框之混合式自動重送請求-確認(harq-ack)處 理技術 Download PDFInfo
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- TWI517625B TWI517625B TW102123279A TW102123279A TWI517625B TW I517625 B TWI517625 B TW I517625B TW 102123279 A TW102123279 A TW 102123279A TW 102123279 A TW102123279 A TW 102123279A TW I517625 B TWI517625 B TW I517625B
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Classifications
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- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Business, Economics & Management (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
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- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
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Description
本發明係有關於用於非期望下行次圖框之混合式自動重送請求確認(HARQ-ACK)處理技術。
長期演進(LTE)及其他無線網路依賴越過行動裝置(例如,使用者設備(UE))與無線電存取網路(RAN)之間的不可靠的媒體之訊息傳輸。在LTE中,RAN由一或多個eNodeB組成。此不可靠的通訊媒體對於RAN與UE之間的正常資料通訊可產生問題,因為資料可由於該無線媒體之低信號品質、干擾或其他問題而丟失或毀壞。
依據本發明之一實施例,係特地提出一種使用者設備(UE),其包含:一回應模組,其經配置來:經由一無線下行控制通道接收一綁定視窗(bundling window)之一或多個下行指派;基於該綁定視窗中之一下行資料通道之次圖框是否成功地經接收來設定用於每一該次圖框之一接收狀態,該綁定視窗具有與該特定次圖框相關聯之一對應的
下行指派;且將用於該綁定視窗中之該下行資料通道之每一次圖框之一接收狀態設定為一預定值,該綁定視窗不具有一對應的下行指派;以及一傳輸模組,其經配置來傳輸一混合式自動重送請求(HARQ)回應,該回應根據由該回應模組設定之該等接收狀態。
5000、5100‧‧‧方法
5010~5150、5110~5150‧‧‧操作
6000‧‧‧系統
6010‧‧‧使用者設備
6020‧‧‧無線電存取網路/RAN
6030、6035‧‧‧基地台/eNodeB
6040‧‧‧無線電連結
6045‧‧‧增強封包核心/核心網路
6050‧‧‧網路
7000‧‧‧UE
7010、7110‧‧‧傳輸模組
7020、7120‧‧‧接收模組
7030‧‧‧回應模組
7100‧‧‧eNodeB
8000‧‧‧機器
8002‧‧‧硬體處理器
8004‧‧‧主記憶體
8006‧‧‧靜態記憶體
8008‧‧‧匯流排
8010‧‧‧顯示器單元
8012‧‧‧文數字輸入裝置
8014‧‧‧使用者介面控制裝置/UI控制裝置
8016‧‧‧儲存裝置
8018‧‧‧信號產生裝置
8020‧‧‧網路介面裝置
8022‧‧‧機器可讀媒體
8024‧‧‧指令
8026‧‧‧通訊網路
圖1係展示根據本揭示案之一些實例之用於具有綁定視窗3之兩個小區的自HARQ-ACK回應至資源、群集及RM碼輸入位元之對映的表。
圖2係展示根據本揭示案之一些實例之用於具有綁定視窗4之兩個小區的自HARQ-ACK回應至資源、群集及RM碼輸入位元之對映的表。
圖2A係根據本揭示案之一些實例之圖2之表的延續。
圖3展示根據本揭示案之一些實例之示範性資源分配的圖解。
圖4展示根據本揭示案之一些實例之示範性資源分配的圖解。
圖5A展示根據本揭示案之一些實例之產生HARQ-ACK回應之方法的流程圖。
圖5B展示根據本揭示案之一些實例之處理HARQ-ACK回應之方法的流程圖。
圖6展示根據本揭示案之一些實例之無線通訊系統的方塊圖。
圖7展示方塊功能圖,其展示根據本揭示案之一些實例之UE及eNodeB之某些功能。
圖8展示根據本揭示案之一些實例之機器的方塊圖。
為處理不可靠的無線通訊媒體,LTE及其他蜂巢式網路採用稱為混合式自動重送請求(HARQ)之機構,來提供錯誤校正及封包確認以確保資料在RAN與UE之間的安全遞送。HARQ使用前向錯誤校正編碼(FEC)及自動回饋機構(自動重送請求(ARQ))在接收者方面為錯誤校正作準備,來向發送者指示封包是否成功地經接收。在接收資料之封包之後,接收者使用錯誤偵測碼(例如,循環冗□檢驗(CRC))來判定封包是否正確地經接收。若封包成功地經接收,則接收者使用回饋機構(例如,ACK)來向發送者確認。若封包未成功地經接收,則接收者可試圖使用FEC資訊來修復封包。若接收者成功地使用FEC資訊來修復封包,則接收者可向發送者確認,否則接收者可使用否定確認(NACK)來回應發送者。在其他實例中,接收者(UE)可回應該封包處於不連續傳輸模式(DTX)之模式中。DTX回應可表示UE不能夠正常地偵測關於控制通道(例如,主要下行控制通道-PDCCH)之資訊且因此不能夠判定封包是否發送至UE之狀況。
在蜂巢式網路中,此等HARQ回應通常在控制
通道上傳輸。用於自RAN發送至UE之下行訊務的回應通常在上行控制通道(例如,實體上行控制通道(PUCCH))中發送。用於自UE發送至RAN之上行訊務的回應通常在下行HARQ-ACK通道(例如,實體混合式HARQ指示器通道:PHICH)中發送。未經確認(經否定確認或根本未經確認)之封包可由發送者重新輸傳。
在一些系統中,上行通訊(自UE至RAN)在頻域中與下行通訊分離。換言之,上行無線通訊與下行無線通訊發生在不同的頻帶上。此等系統被稱為頻分雙工(FDD)系統。在其他實例中,上行無線通訊與下行無線通訊可共享相同的頻帶,但可在時域中分開。換言之,頻帶在一些時間實例(例如,稱為時槽)中為上行無線傳輸保留,且在其他時間實例(例如時槽)中為下行無線通訊保留。此方案稱為時分雙工(TDD)。在其他實例中,半雙工FDD(H-FDD)系統之特徵在於,上行無線通訊及下行無線通訊在不同頻帶上,但在時域中亦分開。
蜂巢式網路之本質在於,UE與RAN之間的通訊在支持下行無線連結中係不對稱的。換言之,自RAN發送至UE之資料通常比自UE發送至RAN之資料多。為補償此不對稱,小區計劃者將通常將比分配予上行無線通訊之頻率資源或時間資源(取決於網路為FDD或TDD)更多的頻率資源或時間資源分配予下行無線通訊。
此資源不對稱性在UE試圖管理必要的HARQ確認時產生問題,此係因為在上行控制通道上通常不存在足
夠的上行資源來傳輸此等回應。僅隨著多個載波及諸如通道狀態資訊之其他上行信號傳遞之增添,加劇此問題。
在LTE中,無線傳輸通常分解為稱為圖框之離散單元,該等圖框可然後分解為次圖框,且該等次圖框分解為一或多個碼字。每一碼字皆可具有與特定傳輸區塊之對映關係,且除非另有說明,否則本文可交換使用。就FDD系統而言,HARQ回應可在接收傳輸之後(通常4個次圖框之後)以固定數目之次圖框傳輸。然而,就TDD系統而言,固定延遲係不可能的,因為在無線電時槽中由於不對稱的無線不平衡而通常存在可變數目之上行時槽及下行時槽。
為解決此等問題,對於TDD系統,頒佈用於4G(LTE)無線網路之標準的第3代行動通訊合作計劃(3GPP)已開發若干機構。第一為ACK/NACK/DTX時域綁定。對於HARQ-ACK綁定,用於在下行通道(例如,實體下行共享通道-PDSCH)上接收的特定數目之次圖框(稱為綁定視窗)之每一下行次圖框中之每一特定碼字的ACK、NACK或DTX之結果經邏輯AND來產生一或多個複合結果,該一或多個複合結果對應於綁定視窗之所有次圖框中之每一碼字。所產生之複合ACK/NACK/DTX結果之數目則等於次圖框中之碼字之數目。例如,若綁定視窗之大小為四個下行次圖框,且每一次圖框具有兩個碼字,則次圖框0-3之第一碼字的確認邏輯AND在一起,且次圖框0-3之第二碼字的確認亦邏輯AND在一起,來產生兩個確認位元。此技術之益處在於其非常緊湊,使用極少的位元,以便保證上行覆蓋。
不利之處在於,若任何一個次圖框之任何一個碼字未正確接收,則將重新傳輸用於所有次圖框之特定碼字。另一技術將使用HARQ-ACK多工傳輸,該HARQ-ACK多工傳輸可個別地越過針對每一下行次圖框之碼字來邏輯AND碼字(亦即,稱為空間域綁定),以產生每一下行次圖框一個確認位元。結果為用於綁定視窗內之每一相關聯的下行次圖框之ACK/NACK/DTX結果。對於四個下行次圖框,其中每一次圖框兩個碼字,將藉由邏輯AND操作之越過兩個碼字(若存在)的空間域綁定應用於次圖框中,且次圖框中之多個綁定的ACK/NACK可導致綁定視窗內之一個複合狀態。對於在實體上行控制通道(PUCCH)上發送之HARQ-ACK回應,複合狀態可表示為PUCCH資源及群集點之組合。此導致四個確認結果--每一次圖框一個確認結果。請注意,儘管事實為此特定HARQ-ACK技術之名稱為「多工傳輸」,但整個說明書中使用「綁定視窗」一詞。
綁定視窗為時間單元(例如,許多次圖框),該時間單元指定何時在上行中傳輸對應於特定上行次圖框處的下行訊務之HARQ-ACK回饋。UE在次圖框n中使用PUCCH傳輸HARQ-ACK回饋,其中該HARQ-ACK回饋用於n-k i ,其中k i K(在表1中定義)且0 i M-1。綁定視窗通常經定義為用於次圖框n處之上行HARQ-ACK回饋的下行次圖框n-k i 。
TDD UL-DL組態表給出為表2。
TDD上行/下行組態(D=下行;S=具有DwPTS、GP及UpPTS三個欄位之特定次圖框,其中UpPTS用來給予UE自下行轉換至上行的時間;U=上行)。
高級LTE支援載波聚合,在該載波聚合中,多個載波可利用於下行中。此意味用於多個載波之多個
ACK/NACK資訊位元需要在上行中回饋。為此,LTE定義習稱為具有時域綁定之通道選擇的技術。此技術利用與HARQ-ACK多工傳輸類似之技術,除了此技術之時域綁定與現存技術略有不同之外。用於載波聚合之時域綁定可用於傳輸用於每一成分載波之連續ACK之數目,而用於單個載波之時域綁定用於傳輸邏輯綁定之HARQ-ACK資訊。所得ACK/NACK資訊可藉由通道及QPSK群集符號之聯合選擇來編碼。實質上,然後可將多工傳輸之確認結果編索引為查找表,以選擇用於PUCCH傳輸之二位元欄位(QPSK群集)及PUCCH資源(所選通道)。若HARQ-ACK背負於PUSCH上,亦提供RM碼輸入位元集合。圖1及圖2(圖2A繼續圖2)中展示用於不同綁定視窗大小之對映表。圖1之標記為HARQ-ACK(0)-(2)之行以及圖2及圖2A之標記為HARQ-ACK(0)-(3)之行表示用於主要小區及次要小區(分別為PCell及SCell)兩者之該特定次圖框之ACK、NACK或DTX決定。例如,在四圖框綁定視窗之狀況下,若在主要小區上成功接收次圖框(0)(ACK),未成功地接收次圖框(1)(NACK),成功接收次圖框(2)(ACK),且成功接收次圖框(3)(ACK),且在次要小區上接收ACK、ACK、ACK、NACK之回應,則UE將選擇具有回饋資源之(0,1)之群集,該回饋資源對應於實體上行控制通道(PUCCH)3且使用碼輸入位元0,0,1,1。簡言之,HARQ-ACK(j)行為用於主要小區及次要小區(對於多個載波)中每一者之每一特定下行次圖框的ACK/NACK/或DTX回應,且對應的PUCCH資源、群
集及RM碼輸入位元將取決於針對主要小區及次要小區中每一者所選擇的HARQ-ACK(j)來使用。當使用PUCCH傳輸HARQ-ACK時,此技術利用PUCCH格式1b。
若UE未正確接收用於任何經排程圖框之排程資訊,則HARQ-ACK綁定或HARQ-ACK多工傳輸可不正常地工作。例如,若eNodeB排程用於具有綁定視窗大小2之兩個次圖框的終端,但UE僅接收最後一個圖框,但UE未曾知曉該最後一個圖框係排程在第一圖框中,則UE將用ACK回復。eNodeB將此ACK解釋為兩個次圖框之確認。為判定何時漏失用於UE之下行授與,LTE規格提供下行指派索引(DAI),該DAI係與關於PDCCH之下行排程資訊一起自RAN發送至UE。下行授與中所傳達之DAI降級帶有所指派PDSCH傳輸之PDCCH及指示半持續排程(SPS)釋放之PDCCH的累積數目,取決於每一經組配之服務小區之相同綁定視窗內之現存次圖框。UE然後利用DAI來在綁定視窗內產生HARQ-ACK(j)。
現轉向圖3,其展示示範性回應計算。在圖3之實例中,在兩個經組配小區中展示四個次圖框(M=4)之綁定視窗。用於主要小區(PCell)之HARQ-ACK(j)回應為ACK、ACK、DTX、ACK,且在次要小區(SCell)中,HARQ-ACK(j)回應分別為ACK、NACK、NACK、ACK。在PDCCH上接收之用於PCell之DAI為對於次圖框0之1,對於次圖框1之2及對於次圖框3之4。請注意,UE不能夠解碼次圖框2(m=2)上之PDCCH,且因此不更新其DAI值。即使UE丟
失所更新的DAI值,其亦在次圖框m=3中恢復該更新的DAI值,且因此知道在綁定視窗末端處DAI為4。因為DAI值為4,所以UE知道其需要四個HARQ-ACK(j)回應。對於SCell,在PDCCH上接收之DAI分別為對於次圖框0、1、2及3之1、2、3及4。
基於圖2及圖2A中之對映表,此產生以下回應:
請注意,當特定綁定視窗之所有次圖框未經RAN排程時,存在問題。因為某些圖框未經排程,所以DAI將不增加,且將小於綁定視窗末端處之綁定視窗大小。圖1及圖2之回饋表假設所有圖框皆經排程。圖4展示此問題之一實例。在此實例中,PCell中之前兩個下行次圖框未經排程。因此對於次圖框2,DAI為1,且對於次圖框3,DAI為2(與圖3相比,其中對於次圖框2及3,DAI分別為3及4)。因為HARQ-ACK(j)係結合DAI值予以判定,所以
HARQ-ACK(0)對應於次圖框2且HARQ-ACK(1)對應於次圖框3。然而,HARQ-ACK(2)及HARQ-ACK(3)未經定義,因為根據DAI之定義,在綁定視窗內不存在對應的DAI值3及4。此係因為DAI值係定義為所指派PDSCH傳輸內之PDCCH及指示下行半持續排程(SPS)釋放之PDCCH的累積數目,取決於綁定視窗內之現存次圖框。因此,若在綁定視窗內不存在將要由UE監測之用於與DAI值相關之HARQ-ACK(j)之預期DL次圖框,則不指定UE行為。
在一些實例中揭示解決針對最後一個接收的DAI(LDAI)值小於綁定視窗之大小的情形產生確認之問題的系統、方法、UE及機器可讀媒體。在一些實例中,對於LDAI<=j<M-1之狀況,將預定狀態利用於HARQ-ACK(j),其中M為多工傳輸大小或綁定視窗大小。例如,可將DTX狀態填補至此等HARQ-ACK回應中。因此例如,在圖4中,PCell用來判定適當回應參數之HARQ-ACK(j)將為:ACK、ACK、DTX、DTX。
因為用於PCell之最後兩個狀態由DTX填補,所以UE將知道自表至使用之準確對映。另外,在網路方面,因為eNodeB已知道最後兩個狀態由DTX填補,所以可在PUCCH偵測假設測試期間排除除DTX之外的無關狀態,該等PUCCH偵測假設測試可改良HARQ-ACK偵測效能。例如在圖3中,因為PCell中之HARQ-ACK回應為{ACK、ACK、DTX、DTX}、{ACK、NACK、DTX、DTX}、{NACK、ACK、DTX、DTX}或{NACK、NACK、DTX、
DTX},所以在eNB偵測中可排除{任何、任何、ACK/NACK、ACK/NACK}之狀態。藉由減少偵測假設測試,可增強PUCCH偵測效能。
將此方法應用於圖4中所示之實例產生以下結果:
雖然在一些實例中,對於綁定視窗內之所有下行次圖框皆未經排程之狀況,HARQ-ACK(j)可充滿DTX,但在其他實例中,可使用其他值,諸如ACK、NACK或另一定義值。此係因為eNodeB具有足夠的系統知識來忽略此等值。實際上,在一些實例中,UE可任意選擇任何ACK/NACK/DTX值。
現在轉向圖5A,其展示當特定綁定視窗中並非所有下行圖框皆已經排程時確認傳輸之方法5000。在操作5010處,UE接收關於PDCCH之排程資訊,該PDCCH指示經排程之下行圖框。在操作5020處,UE判定其已接收
用於特定綁定視窗之最後一個下行指派,且在操作5030處,判定最後一個DAI值(LDAI)小於綁定視窗大小。在操作5040處,UE判定用於圖框之ACK/NACK/DTX回應,對於該等圖框,UE知曉該圖框經排程。在操作5050處,以預定值(例如,DTX)充滿不具有對應的DAI值之剩餘HARQ-ACK(j)。
現轉向圖5B,其展示在並非所有下行圖框皆已經排程之傳輸之eNodeB處的處理確認之方法5100。在操作5110處,基地台(例如,eNodeB)可排程用於特定確認週期(例如,綁定視窗)之一或多個下行傳輸,且經由諸如實體下行控制通道(PDCCH)之下行控制通道通知UE。在操作5120處,eNodeB可傳輸經排程之圖框。在操作5130處,eNodeB可接收來自UE之回應。在操作5140處,eNodeB可判定在PDCCH上發送之最後一個DAI值小於綁定視窗大小。在操作5150處,eNodeB可使用接收回應所在的資源(例如,PUCCH資源)以及接收的群集及RM碼位元來判定回應,原因在於HARQ-ACK(j)係填補值,其中j為LDAI<=j<M-1,其中M為多工大小或綁定視窗大小。eNodeB然後可傳輸任何必要的重傳。
現轉向圖6,其展示用於確認傳輸之系統6000。使用者設備(UE)6010與無線電存取網路(RAN)6020通訊,無線電存取網路6020包括在一或多個無線電連結6040上之一或多個基地台(例如,eNodeB)6030、6035。RAN 6020可連接至諸如增強封包核心之核心網路6045。增強封包核
心6045可經連接至網路6050,網路6050諸如網際網路、簡易老式電話服務網路(POTS)或類似網路。在圖6之系統中,無線電連結6040可在時分雙工模式(TDD)之模式中操作。
圖7展示UE 7000之部分功能圖(可包括未示出之更多組件)。UE 7000可包括傳輸模組7010。傳輸模組7010可經由諸如實體上行控制通道(PUCCH)、實體上行共享通道(PUSCH)或類似通道之一或多個上行通道將控制訊務及使用者訊務傳輸至RAN。傳輸模組7010可在下行通道(例如,實體下行共享通道(PDSCH)及實體專屬控制通道(PDCCH))上將自RAN發送之使用者訊務及控制訊務之確認傳輸至UE 7000。
接收模組7020可接收由RAN在諸如實體下行共享通道(PDSCH)及實體下行控制通道(PDCCH)之下行通道上發送之資訊,且通知知回應模組7030該資訊之接收狀態。例如,接收的次圖框可在接收模組處(且任何FEC校正亦可在此進行)經解碼,且可將次圖框是否應經ACK、經NACK或經DTX之指示發送至回應模組7030。接收模組7020亦可將各種通訊參數傳遞至回應模組7030,該等通訊參數諸如綁定視窗大小及用於該視窗最後一個接收的DAI。
回應模組7030可根據圖1及圖2(圖2A繼續)中之表,基於LDAI、綁定視窗大小等,通知傳輸模組7010適當的回應參數(例如,PUCCH資源、RM碼位元、群集)。
例如,回應模組7030可判定接收的下行指派之數目小於回應綁定視窗大小,且基於該判定,基於與特定接收的下行指派相關聯之圖框是否成功地經接收來設定每一接收的下行指派之接收狀態,且將不具有對應的下行指派之綁定視窗中之圖框之接收狀態設定為預定值。例如,回應模組可判定對於回應綁定視窗中之多個下行次圖框之每一索引j,一或多個接收的下行指派索引(DAI)值是否等於j+p。回應於判定一或多個DAI值之一等於j+p,判定對應於j之次圖框之接收狀態(ACK/NACK/DTX)。回應於判定一或多個DAI值皆不等於j+p,將對應於j之次圖框之接收狀態設定為預定值。其中p為常數(例如0或1),其中一或多個DAI值係經由實體下行控制通道(PDCCH)接收,其中j M-1,且其中M為HARQ綁定視窗中之次圖框之數目。回應模組7030亦可被稱為HARQ模組,且然後可命令傳輸模組7010傳輸適當判定之回應。在一些實例中,若在綁定視窗內無偵測之對應的PDCCH之情況下,在主要小區上存在實體下行共享通道(PDSCH)傳輸,則變數p可等於零,否則變數p可為一。因此,值p可表示無對應的PDCCH之半持續排程(SPS)PDSCH是否存在於綁定視窗內。請注意,雖然該說明書描述具有用於經排程下行圖框之DAI值的PDCCH,但當UE接收指示亦包括DAI值之下行半持續排程(SPS)釋放訊息之PDCCH時,亦可使用本揭示案。
圖7亦展示eNodeB 7100之部分功能圖(可包括未示出之更多組件)。eNodeB 7100包括傳輸模組7110,傳
輸模組7110在一或多個通道上傳輸使用者資料及控制資料。例如,使用者資料或控制資料可在實體專屬控制通道(PDCCH)或實體專屬共享通道(PDSCH)上傳輸。傳輸模組7110可排程用於傳輸之圖框且在PDCCH上向UE發信號。傳輸模組7110亦可在PDCCH中傳輸DAI。接收模組7120可在諸如實體上行控制通道(PUCCH)及實體上行共享通道(PUSCH)之上行通訊通道上接收控制資料及使用者資料。接收模組7120可接收自UE至下行次圖框之HARQ回應(例如,ACK-NACK-DTX回應)。回應於此資訊,接收模組可向傳輸模組指示某些資料可需要重傳。接收模組7120可基於判定回應係在哪一PUCCH資源上接收、所接收的群集位元及所接收的RM碼來解碼該回應。接收模組7120亦可判定綁定視窗中之最後一個DAI值小於綁定視窗中之次圖框之數目,且判定應將次圖框之ACK/NACK/DTX中一或多個忽略為不表示實際傳輸。
圖8例示示範性機器8000之方塊圖,本文所論述之任何一或多個技術(例如,方法論)可在該機器上執行。UE、RAN(包括eNodeB)或EPC可為機器8000或包括機器8000之部分。在替代性實施例中,機器8000可作為獨立裝置操作或可連接(例如,網路連接)至其他機器。在網路連接部署中,機器8000可作為伺服器-客戶端網路環境中之伺服器機器、客戶端機器或上述兩者操作。在一實例中,機器8000可充當同級(P2P)(或其他分散式)網路環境中之同級機器。機器8000可為個人電腦(PC)、平板PC、機上盒
(STB)、個人數位助理(PDA)、行動電話(諸如UE)、網頁用具、無線基地台、網路路由器、轉換器或橋接器或能夠執行指令(依序或非依序)之任何機器,該等指令指定將由該機器採取之行動。此外,雖然僅例示單個機器,但是「機器」一詞亦應理解為包括個別地或聯合地執行一組(或多組)指令來執行本文所論述之任何一或多個方法論之機器的任何集合,諸如,雲端計算、軟體即服務(SaaS)、其他電腦叢集組態。例如,機器8000之功能可越過網路中之多個其他機器分散。
如本文所述,實例可包括邏輯或多個組件、模組或機構,或可在上述各者上操作。模組為能夠執行指定操作之有形實體,且可以特定方式組配或配置。在一實例中,可將電路以指定方式配置(例如,內部地或相對於諸如其他電路之外部實體)為模組。在一實例中,一或多個電腦系統之整體或部分(例如,獨立電腦系統、客戶端電腦系統或伺服器電腦系統)或一或多個硬體處理器可由韌體或軟體(例如,指令、應用部分、或應用)組配為操作來執行指定操作之模組。在一實例中,軟體可常駐(1)在非暫時性機器可讀媒體上或(2)在傳輸信號中。在一實例中,軟體在由模組之下層硬體執行時使硬體執行指定操作。
因此,「模組」一詞將理解為涵蓋有形實體,該實體為經實體建構、特別組配(例如,硬連線)或臨時(例如,暫時)組配(例如編程式)來以指定方式操作或來執行本文所述之任何操作之部分或全部的實體。考慮模組經臨時組配
之實例,模組中之每一者在任何時刻不需要經實例化。例如,在模組包含使用軟體組配之通用硬體處理器之情況下,該通用硬體處理器可組配為可隨時間改變之一或多個模組。軟體可相應地組配硬體處理器,例如,來在時間之一實例處建構特定模組且在時間之不同實例處建構不同的模組。
機器(例如,電腦系統)8000可包括硬體處理器8002(例如,中央處理單元(CPU)、圖形處理單元(GPU)、硬體處理器核心或上述三者之任何組合),主記憶體8004及靜態記憶體8006,硬體處理器8002、主記憶體8004及靜態記憶體8006中之一些或全部可經由匯流排8008彼此通訊。機器8000可進一步包括顯示器單元8010、文數字輸入裝置8012(例如,鍵盤)、使用者介面(UI)控制裝置8014及/或其他輸入裝置。在一實例中,顯示器單元8010及UI控制裝置8014可為觸控螢幕顯示器。機器8000可另外包括儲存裝置(例如,驅動單元)8016、信號產生裝置8018(例如,揚聲器)及網路介面裝置8020。
儲存裝置8016可包括機器可讀媒體8022,機器可讀媒體8022上儲存一或多組資料結構或指令8024(例如,軟體),一或多組資料結構或指令8024實施本文所述之技術或功能中之任何一或多個,或由該等技術或功能中之任何一或多個利用。指令8024亦可在藉由機器8000執行該等指令期間完全地或至少部分地常駐在主記憶體8004內,在靜態記憶體8006內或在硬體處理器8002內。在一
實例中,硬體處理器8002、主記憶體8004、靜態記憶體8006或儲存裝置8016之一或任何組合可建構機器可讀媒體。
雖然機器可讀媒體8022係例示為單個媒體,但「機器可讀媒體」一詞可包括經組配來儲存一或多個指令8024之單個媒體或多個媒體(例如,集中式或分散式資料庫、及/或相關聯之快取記憶體及伺服器)。
「機器可讀媒體」一詞可包括能夠儲存、編碼或攜帶由機器8000執行之指令,及使機器8000執行本揭示案之技術中之一或多種技術,或能夠儲存、編碼或攜帶由此等指令使用或與此等指令相關聯之資料結構的任何有形媒體。非限制性機器可讀媒體之實例可包括固態記憶體以及光學及磁性記憶體。機器可讀媒體之特定實例可包括:非依電性記憶體,諸如半導體記憶體裝置(例如,電氣可規劃唯讀記憶體(EPROM)、電氣可抹除可規劃唯讀記憶體(EEPROM))及快閃記憶體裝置;磁性碟片,諸如內部硬碟及可移碟片;磁性-光學碟片;以及CD-ROM及DVD-ROM碟片。
指令8024可經由網路介面裝置8020使用傳輸媒體在通訊網路8026上進一步傳輸或接收。網路介面裝置8020可將機器8000連接至其他機器之網路,以藉由利用許多傳送協定(例如,圖框中繼、網際網路協定(IP)、傳送控制協定(TCP)、用戶資料元協定(UDP)、超本文傳送協定(HTTP)等)中之任何一個與網路中之其他機器通訊。示範性通訊網路可包括區域網路(LAN)、廣域網路(WAN)、封包資
料網路(例如,網際網路)、行動電話網路(例如,蜂巢式網路)、簡易老式電話(POTS)網路及無線資料網路(例如,習稱為Wi-Fi®之美國電機電子工程師學會(IEEE)802.11族之標準、習稱為WiMax®之IEEE 802.16族之標準)、同級間(P2P)網路及其他網路。在一實例中,網路介面裝置8020可包括一或多個實體插孔(例如,乙太網路插孔、同軸插孔或電話插孔)或一或多個天線來連接至通訊網路8026。在一實例中,且如圖8中所示,網路介面裝置8020可包括多個天線(未示出)以使用單輸入多輸出(SIMO)技術、多輸入多輸出(MIMO)技術或多輸入單輸出(MISO)技術中之至少一個來進行無線通訊。「傳輸媒體」一詞應經理解為包括能夠儲存、編碼或攜帶藉由機器8000執行之指令的任何有形媒體,且包括數位或類比通訊信號或其他有形媒體以促進此軟體之通訊。
其他注解及實例
實例1:揭示一種使用者設備(UE),其包含:回應模組:其經配置來:經由無線下行控制通道接收綁定視窗之一或多個下行指派;基於下行資料通道上之次圖框是否與下行指派中之一特定指派相關聯,且基於該次圖框是否成功地經接收,來設定用於綁定視窗中之下行資料通道之每一次圖框的接收狀態;且將綁定視窗中之下行資料通道之次圖框的接收狀態設定為預定值,該綁定視窗不具有對應的下行指派;以及傳輸模組,其經配置來傳輸回應,該回應基於由該回應模組設定之接收狀態。
實例2:實例1之UE,其中接收狀態為以下狀態之一:確認(ACK)、否定確認(NACK)及不連續接收(DTX)。
實例3:實例1至實例2中任一實例之UE,其中預定值為指示不連續傳輸(DTX)之值。
實例4:實例1至實例3中任一實例之UE,其中UE經配置來在時分雙工(TDD)模式中操作,且其中傳輸模組經配置來使用實體上行控制通道(PUCCH)格式1b傳輸回應。
實例5:實例1至實例4中任一實例之UE,其中綁定視窗大於2個次圖框。
實例6:實例1至實例5中任一實例之UE,其中傳輸模組經配置來藉由基於接收狀態選擇PUCCH上行資源、群集及一組碼輸入位元,來傳輸回應。
實例7:實例1至實例6中任一實例之UE,其中UE經配置來使用長期演進(LTE)族之標準與無線網路通訊。
實例8:實例1至實例7中任一實例之UE,其中UE經配置來利用具有兩個服務小區組態之載波聚合。
實例9:揭示一種方法,其包含:判定對於多個下行次圖框之每一索引j,一或多個接收的下行指派索引(DAI)值是否等於j+p,該一或多個DAI值經由實體下行控制通道(PDCCH)接收,其中jM-1,M為HARQ綁定視窗中之次圖框之數目,其中p為常數;回應於判定一或多個
DAI值皆不等於j+1,將對應於j之次圖框之接收狀態設定為預定值;以及傳輸綁定視窗M中之多個下行次圖框j中之每一者的接收狀態。
實例10:實例9之方法,其中預定值為指示不連續傳輸(DTX)之值。
實例11:實例9至實例10中任一實例之方法,其包含:判定在綁定視窗內無偵測之對應的PDCCH之情況下,在主要小區上是否存在主要下行共享通道(PDSCH)傳輸;回應於判定在無對應的PDCCH之情況下存在PDSCH,將p設定為0;回應於判定在無對應的PDCCH之情況下不存在PDSCH,將p設定為1。
實例12:實例9至實例11中任一實例之方法,其中接收狀態係使用實體上行控制通道(PUCCH)格式1b予以傳輸。
實例13:實例9至實例12中任一實例之方法,其包含藉由基於接收狀態至少選擇PUCCH上行資源、群集及一組碼輸入位元來傳輸該等接收狀態。
實例14:揭示一種使用者設備(UE),其包含:混合式自動重送請求(HARQ)模組,其經配置來:對於多個下行次圖框之每一索引j:判定一或多個接收的下行指派索引(DAI)值是否等於j+p,其中p為常數,該一或多個DAI值經由實體下行控制通道(PDCCH)接收,其中jM-1,且其中M為HARQ綁定視窗中之次圖框之數目,回應於判定該一或多個DAI值之一等於j+p,判定對應於j之次圖框之接
收狀態,且回應於判定該一或多個DAI值皆不等於j+p,將對應於j之次圖框之接收狀態設定為預定值;以及傳輸模組,其經配置來傳輸綁定視窗M中之多個下行次圖框j中之每一者的接收狀態。
實例15:實例14之UE,其中接收狀態為以下狀態之一:確認(ACK)、否定確認(NACK)及不連續接收(DTX)。
實例16:實例14至實例15中任一實例之UE,其中預定值為指示不連續傳輸(DTX)之值。
實例17:實例14至實例16中任一實例之UE,其中預定值為不同於指示ACK、NACK及DTX之值的值。
實例18:實例14至實例17中任一實例之UE,其中預定值為隨機選自指示ACK、NACK及DTX之值之一的值。
實例19:實例14至實例18中任一實例之UE,其中UE經配置來在時分雙工(TDD)模式中操作。
實例20:實例14至實例19中任一實例之UE,其中UE經配置來多工傳輸HARQ接收狀態。
實例21:實例14至實例20中任一實例之UE,其中傳輸模組經配置來使用實體上行控制通道(PUCCH)格式1b傳輸接收狀態。
實例22:實例14至實例21中任一實例之UE,其中HARQ模組進一步經配置來:判定在綁定視窗內無經偵測之對應的PDCCH之情況下,在主要小區上是否存在主
要下行共享通道(PDSCH)傳輸;回應於判定在無對應的PDCCH之情況下存在PDSCH,將p設定為0;回應於判定在無對應的PDCCH之情況下不存在PDSCH,將p設定為1。
實例23:實例14至實例22中任一實例之UE,其中傳輸模組經配置來藉由基於接收狀態選擇PUCCH上行資源、群集及一組碼輸入位元,來傳輸該接收狀態。
實例24:實例14至實例23中任一實例之UE,其中UE經配置來使用長期演進(LTE)族之標準與無線網路通訊。
5100‧‧‧方法
5110~5150‧‧‧操作
Claims (17)
- 一種用於通訊之方法,其包含以下步驟:接收一下行次圖框(downlink sub-frame),該下行次圖框具有一索引j及一下行指派索引(DAI);判定該DAI不等於j+p,其中p為一常數;以及回應於該判定而傳輸用於該下行次圖框的不連續接收(DTX)之一HARQ接收狀態。
- 如請求項1之方法,其進一步包含以下步驟:判定在一綁定視窗內無一對應的下行控制通道之情況下,在一主要小區上是否存在一下行共享通道傳輸,該綁定視窗包含M個下行次圖框;回應於判定在無一對應的下行控制通道的情況下存在一下行共享通道,將p設定為0;以及回應於判定在無一對應的下行控制通道之情況下不存在下行共享通道,將p設定為1。
- 如請求項1之方法,其中該HARQ接收狀態係使用一實體上行控制通道(PUCCH)格式1b予以傳輸。
- 如請求項1之方法,其中傳輸該接收狀態包括基於該HARQ接收狀態來選擇一PUCCH上行資源、一群集或一組碼輸入位元之至少一者。
- 一種使用者設備(UE),其包含:混合式自動重送請求(HARQ)電路,其經配置來:接收一下行次圖框(downlink sub-frame),該下 行次圖框具有一索引j及一下行指派索引(DAI),該DAI將經由實體下行控制通道(PDCCH)而被接收;判定該DAI不等於j+p,其中p為一基於一實體下行通道關係之常數;及回應於該判定而設定一對應於該下行次圖框之HARQ接收狀態為不連續接收(DTX);以及經配置來傳輸該HARQ接收狀態之傳輸電路。
- 如請求項5之UE,其中該UE經配置來在一時分雙工(TDD)模式中操作。
- 如請求項5之UE,其中該傳輸電路經配置來多工傳輸對於多個下行次圖框之HARQ接收狀態,該等多個下行次圖框包含M個下行次圖框之一綁定視窗。
- 如請求項5之UE,其中該傳輸電路經配置來使用一實體上行控制通道(PUCCH)格式1b傳輸該等HARQ接收狀態。
- 如請求項7之UE,其中該HARQ電路經配置來:判定在一主要小區上傳輸之一主要下行共享通道(PDSCH)與在該綁定視窗內所偵測之一對應的PDCCH之間的該實體下行通道關係;將p設定為0以回應於判定在沒有一對應的PDCCH之情況下存在一PDSCH;及將p設定為1以回應於判定在沒有一對應的PDCCH之情況下不存在PDSCH。
- 如請求項5之UE,其中該傳輸電路經配置來基於該接 收狀態藉由選擇一PUCCH上行資源、一群集及一組碼輸入位元,來傳輸該HARQ接收狀態。
- 如請求項5之UE,其中該UE經配置來使用一長期演進(LTE)族之標準與一無線網路通訊。
- 如請求項7之UE,其中該HARQ電路經配置來:將p設定為1以回應於判定在一主要小區上有一對應的控制通道傳輸之情況下有一下行共享通道傳輸在一次要小區上。
- 如請求項7之UE,其進一步包含:一觸控螢幕顯示器。
- 如請求項7之UE,其進一步包含:一檔案儲存器。
- 一種電腦可讀取媒體,其包含當在一裝置上被執行時將導致該裝置進行以下動作之指令:接收一下行次圖框,該下行次圖框具有一索引j及一下行指派索引(DAI),該DAI將經由一實體下行控制通道(PDCCH)而被接收;判定該DAI不等於j+p,其中p為一常數;回應於該判定而設定一對應於該下行次圖框之HARQ接收狀態為不連續接收(DTX);以及使用一實體上行控制通道(PUCCH)格式1b傳輸該HARQ接收狀態。
- 如請求項15之電腦可讀取媒體,其進一步包含當在該裝置上被執行時將導致該裝置進行以下動作之指令: 判定在該綁定視窗內無偵測到一對應的下行控制通道之情況下,在一主要小區上是否存在一下行共享通道傳輸;將p設定為0以回應於判定在沒有一對應的下行控制通道之情況下存在一下行共享通道;將p設定為1以回應於在沒有一對應的下行控制通道之情況下不存在下行共享通道。
- 如請求項15之電腦可讀取媒體,其進一步包含當在該裝置上被執行時將導致該裝置進行以下動作之指令:將p設定為1以回應於判定在一主要小區上有一對應的控制通道傳輸之情況下有一下行共享通道傳輸在一次要小區上。
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Cited By (3)
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US9673939B2 (en) | 2012-07-02 | 2017-06-06 | Intel Corporation | HARQ-ACK handling for unintended downlink sub-frames |
US10027446B2 (en) | 2012-07-02 | 2018-07-17 | Intel Corporation | HARQ-ACK handling for unintended downlink sub-frames |
USRE49490E1 (en) | 2012-07-02 | 2023-04-11 | Apple Inc. | HARQ-ACK handling for unintended downlink sub-frames |
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