201208426 六、發明說明： 【發明所屬之技術領域】 本發明係有關無線網路通信，尤其有關載波聚合的無 線網路中的基站和用戶終端中用於時序提前的方法和裝置 【先前技術】 目前，採用正交分頻多工的長期演進（LTE )系統中 ，爲了確保同一時刻發送上行資料的不同用戶終端（UE) 之間的正交性，需要使多個用戶終端的信號在基站被同步 接收，亦即，各個用戶終端的信號需要同時到達基站，具 體實現上是確保在同一上行子框發送的不同用戶終端的資 料到達基站的時間誤差在環字首（CP)範圍之內。由於各 用戶終端距基站的距離不同，需要對各個用戶終端的發射 時刻進行調整，通道傳輸延遲較大的用戶終端較早發送， 通道傳輸延遲較小的用戶終端較晚發送，這種操作稱爲時 序校正（Timing Alignment)。具體上，基站將上行時序 提前量（TA )發送給各個用戶終端，用戶終端根據所接收 到的TA來決定發送後續的上行子框的起始時刻。 在LTE系統中，用戶終端僅被配置一個不大於20 Μ的 載波資源，對於系統的所有用戶終端所使用的資源或者被 調度的資源也只限於LTE系統的僅有的一個載波之內。而 在 LTE-Advanced中，支持載波聚合（Carrier aggregation )，包括連續載波聚合以及頻帶內和頻帶間的非連續載波 -5- 201208426 聚合，最大能聚合帶寬可達100 MHZ。因此’對某一個用 戶終端可以被配置1〜5個分it載波（component carrier) ’ 則該用戶終端所使用的資源或者被調度的資源也可以分散 於1〜5個分量載波之上。這增加了資料傳輸帶寬和調度靈 活性，但尙缺乏針對LTE-A系統的載波聚合特點的用戶終 端側的改進的時序提前的技術方案。 【發明內容】 在上述LTE-A系統的載波聚合條件下，用戶終端的發 送透過一個或多個分量載波而被調度，因爲不同的上行分 量載波的傳輸延遲可能會不同，因此，這造成同一用戶終 端在載波聚合情況中發送的上行子框，可能無法同步到達 基站的問題，針對該技術問題，本發明提出了適用於載波 聚合的應用情況下的無線網路中的基站和用戶終端中實現 時序提前的方法和裝置。 根據本發明的一個實施例，提供了一種在載波聚合的 無線網路的用戶終端中用於時序提前的方法，無線網路中 配置了至少一個下行分量載波和至少一個上行分量載波， 至少一個下行分量載波中包括一個下行主分量載波，至少 一個上行分量載波中的所有啓動的上行分量載波共用一個 計時器以及一個時序提前値’該方法包括如下步驟： 透過至少一個下行分量載波中的所有啓動的下行分量 載波的其中之一’接收時序提前指示信令，該時序提前指 示信令中包括時序提前資訊；根據時序提前資訊更新時序201208426 VI. Description of the Invention: [Technical Field] The present invention relates to wireless network communication, and more particularly to a method and apparatus for timing advance in a base station and a user terminal in a wireless network for carrier aggregation [Prior Art] In the Long Term Evolution (LTE) system using orthogonal frequency division multiplexing, in order to ensure orthogonality between different user terminals (UEs) that transmit uplink data at the same time, signals of multiple user terminals need to be synchronized at the base station. The receiving, that is, the signal of each user terminal needs to arrive at the base station at the same time. The specific implementation is to ensure that the time error of the data of different user terminals transmitted in the same uplink sub-frame arrives at the base station within the range of the ring prefix (CP). Since the distances of the user terminals from the base station are different, the transmission time of each user terminal needs to be adjusted, the user terminal with a large channel transmission delay is sent earlier, and the user terminal with a small channel transmission delay is sent later. This operation is called Timing Alignment. Specifically, the base station sends an uplink timing advance (TA) to each user terminal, and the user terminal determines the start time of transmitting the subsequent uplink sub-box according to the received TA. In the LTE system, the user terminal is configured with only one carrier resource of no more than 20 ,, and the resources used by all user terminals of the system or the scheduled resources are limited to only one carrier of the LTE system. In LTE-Advanced, carrier aggregation is supported, including continuous carrier aggregation and non-contiguous carrier-in-band and inter-band aggregation -5 - 201208426 aggregation, and the maximum energy aggregation bandwidth is up to 100 MHZ. Therefore, the resource used by the user terminal or the scheduled resource can be distributed over 1 to 5 component carriers, for a user terminal to be configured with 1 to 5 component carriers. This increases data transmission bandwidth and scheduling flexibility, but lacks an improved timing advancement scheme for the user terminal side of the carrier aggregation feature of the LTE-A system. SUMMARY OF THE INVENTION Under the carrier aggregation conditions of the LTE-A system, the transmission of the user terminal is scheduled through one or more component carriers, because the transmission delays of different uplink component carriers may be different, thus causing the same user The uplink sub-frame sent by the terminal in the case of carrier aggregation may not be able to reach the base station synchronously. For the technical problem, the present invention proposes timing implementation in the base station and the user terminal in the wireless network in the application case applicable to carrier aggregation. Advance methods and devices. According to an embodiment of the present invention, there is provided a method for timing advance in a user terminal of a carrier aggregation wireless network, wherein at least one downlink component carrier and at least one uplink component carrier are configured in the wireless network, at least one downlink The component carrier includes a downlink primary component carrier, and all of the activated uplink component carriers in the at least one uplink component carrier share a timer and a timing advancement. The method includes the following steps: transmitting all of the at least one downlink component carrier One of the downlink component carriers receives the timing advance indication signaling, and the timing advance indication signaling includes timing advance information; and the timing update information is updated according to the timing advance information
S 201208426 提前値’並啓動/重啓所述計時器，並且基於所確定的下 行參考分量載波和所更新的時序提前値，確定本用戶終端 的上行發送時間。 根據本發明的另一實施例，提供了一種在無線網路的 基站中用於時序提前的方法，所述無線網路中配置了至少 一個下行分量載波和至少一個上行分量載波，至少一個下 行分量載波中包括一個下行主分量載波，至少一個上行分 量載波中的所有啓動的上行分量載波共用一個計時器以及 一時序提前値，該方法包括步驟： 基於所確定的下行參考分量載波，確定一個時序提前 資訊’該時序提前資訊對應於上述的所有啓動的上行分量 載波所共用的時序提前値；以及透過至少一個下行分量載 波中所有啓動的下行分量載波中的一個啓動的下行分量載 波’發送時序提前指示信令，該時序提前指示信令中包括 上述時序提前資訊。 根據本發明的再一個實施例，提供了一種在無線網路 的用戶終端中用於時序提前的裝置，無線網路中配置了至 少一個下行分量載波和至少一個上行分量載波，至少一個 上行分量載波中所有啓動的上行分量載波共用一個計時器 以及一時序提前値，該裝置包括： -指示信令接收模組，用以透過所述至少一個下行分 量載波中的一個啓動的下行分量載波，接收時序提前指示 信令，該時序提前指示信令中包括時序提前資訊； -時序提前啓動模組，用以根據所述時序提前指示信 201208426 令中的時序提前資訊來更新所述時序提前値，並啓動/重 啓所述計時器；以及 -上行發送時間確定模組，用以基於所確定的下行參 考分量載波和所更新的所述時序提前値，確定本用戶終端 的上行發送時間。 根據本發明的又一個實施例，提供了一種在無線網路 的基站中的用於時序提前的裝置，該無線網路中配置了至 少一個下行分量載波和至少一個上行分量載波，至少一個 上行分量載波中的所有的啓動的上行分量載波共用一個計 時器以及一時序提前値，該裝置包括： -時序提前値確定模組，基於所確定的下行參考分量 載波，確定一個時序提前資訊； -指示信令發送模組，用於透過所述至少一個下行分 量載波中的一個啓動的下行分量載波，發送時序提前指示 信令；該時序提前指示信令中包括上述的時序提前資訊。 本發明中提出了因爲不同的下行分量載波的傳輸延遲 可能不同，所以同一用戶終端在載波聚合情況下在上行子 框中發送的資料可能無法在系統環字首CP範圍內同步到達 基站的技術問題，針對該技術問題，本發明提出了適用於 載波聚合的應用情況下的無線網路中的基站和用戶終端中 實現時序提前的方法和裝置，用於在基站和用戶終端兩側 分別確定下行參考分量載波’並使基站在爲用戶終端確定 時序提前値時，以及用戶終端在確定其上行傳輸時間時， 基站和用戶終端各自所基於的下行參考分量載波的傳輸時S 201208426 advances 并 and starts/restarts the timer, and determines the uplink transmission time of the user terminal based on the determined downlink reference component carrier and the updated timing advance 値. According to another embodiment of the present invention, there is provided a method for timing advance in a base station of a wireless network, wherein at least one downlink component carrier and at least one uplink component carrier, at least one downlink component are configured in the wireless network The carrier includes a downlink primary component carrier, and all of the activated uplink component carriers in the at least one uplink component carrier share a timer and a timing advance, the method comprising the steps of: determining a timing advance based on the determined downlink reference component carrier. The information 'the timing advance information corresponds to the timing advance 共用 shared by all the activated uplink component carriers described above; and the downlink component carrier 'transmitted timing advance indication' initiated by one of all the activated downlink component carriers in the at least one downlink component carrier Signaling, the timing advance indication signaling includes the foregoing timing advance information. According to still another embodiment of the present invention, there is provided a device for timing advance in a user terminal of a wireless network, wherein at least one downlink component carrier and at least one uplink component carrier, at least one uplink component carrier are configured in the wireless network All the uplink component carriers that are activated share a timer and a timing advance, the device includes: - an indication signaling receiving module, configured to receive a downlink component carrier through one of the at least one downlink component carrier, and receive timing Instructing signaling in advance, the timing advance indication signaling includes timing advance information; - a timing advance start module, configured to update the timing advance according to timing advance information in the timing advance indication message 201208426, and start And restarting the timer; and the uplink transmission time determining module is configured to determine an uplink sending time of the user terminal based on the determined downlink reference component carrier and the updated timing advance 値. According to still another embodiment of the present invention, there is provided apparatus for timing advance in a base station of a wireless network, wherein the wireless network is configured with at least one downlink component carrier and at least one uplink component carrier, at least one uplink component All of the activated uplink component carriers in the carrier share a timer and a timing advance, and the apparatus includes: - a timing advance 値 determining module, determining a timing advance information based on the determined downlink reference component carrier; - an indication letter And a sending module, configured to send timing advance indication signaling by using a downlink component carrier that is activated by one of the at least one downlink component carrier; and the timing advance indication signaling includes the timing advance information. The present invention proposes that because the transmission delays of different downlink component carriers may be different, the technical problem that the data transmitted by the same user terminal in the uplink sub-frame may not reach the base station synchronously within the range of the system ring prefix CP in the case of carrier aggregation is proposed. For the technical problem, the present invention proposes a method and apparatus for implementing timing advance in a base station and a user terminal in a wireless network in a case of application for carrier aggregation, for determining a downlink reference on both sides of the base station and the user terminal, respectively. The component carrier 'and enables the base station to transmit the downlink reference component carrier on which the base station and the user terminal are based when determining the timing advance for the user terminal, and when the user terminal determines its uplink transmission time
S -8 - 201208426 延相同，因此，用戶終端可在其接收到下行參考信號時刻 ，根據基站所確定的時序提前値，正確地確定其上行傳輸 時間點，因而在載波聚合的情況中，正確地完成用戶終端 的時序提前。如果所有啓動的上行分量載波的傳輸延遲基 本相同，則在上述確定的上行傳輸時間點上進行上行鏈路 的發送，就可以使其發送的上行子框中的所有資料，在基 站側的環字首（CP )範圍之內，同步到達基站側。 【實施方式】 以下結合附圖而對本發明的具體實施例進行詳細的示 例性描述。 圖1爲根據本發明的一個實施例之基站和用戶終端所 構成的無線網路系統拓撲結構圖，該通信系統包括：用戶 終端1 1以及基站1 2，兩者之間存在上下行的通信，其中， 配置有一個或多個上下行的分量載波（未在圖中示出）。 圖2爲根據本發明的一個實施例之在無線網路的用戶 終端中的時序提前的方法流程圖； 首先，在步驟S 201中，用戶終端11透過至少一個下行 分量載波中的至少一個啓動的下行分量載波的其中之一， 接收時序提前指示信令（該信令位於圖1中的用戶終端n 和基站12之間的通道上，圖1中未示出），該時序提前指 示信令中包括一時序提前資訊。 然後，在步驟S2〇2中，用戶終端Π根據時序提前資訊 來更新用戶終端1 1側之爲所有啓動的上行分量載波所共用 -9 - 201208426 的時序提前値，並啓動/重啓用戶終端1 1側之爲所有啓動 的上行分量載波所共用的計時器。 接著，在步驟S203中，用戶終端1 1基於所確定的下行 參考分量載波和所更新的時序提前値，確定本用戶終端的 上行發送時間。 具體地說，在本發明的實施例的某些應用情況中，步 驟S202和步驟S 203之間可以不存在時序上的先後關係。 圖3爲根據本發明的一個實施例之在無線網路的基站 中的時序提前的方法流程圖。 首先，在步驟S301中，基站12基於所確定的下行參考 分量載波，確定時序提前資訊。 然後，在步驟S 3 02中，基站12透過至少一個下行分量 載波中的至少一個啓動的下行分量載波的其中之一，發送 時序提前指示信令，該時序提前指示信令中包括步驟S3 01 中確定的時序提前資訊。 下面結合圖1、圖2、圖3而對本發明提供之在載波聚 合的無線網路的用戶終端以及基站中之用於時序提前的方 法進行詳細說明。 圖1中的基站和用戶終端構成的無線網路系統拓撲結 構圖所示的通信系統包括：用戶終端11以及基站12»假設 該通信系統的上下行通道上被配置了 4個上行分量載波： CCU1、CCU2、CCU3、CCU4，其中，在系統運行初期處 於啓動狀態的上行分量載波爲：CCU1、CCU2、CCU3，上 述3個上行分量載波共用一個計時器timer ’以及一個時序S -8 - 201208426 is the same. Therefore, the user terminal can correctly determine the uplink transmission time point according to the timing advance determined by the base station when it receives the downlink reference signal, and thus, in the case of carrier aggregation, correctly The timing advance of the user terminal is completed. If the transmission delays of all the uplink component carriers that are started are substantially the same, then the uplink transmission is performed at the determined uplink transmission time point, and all the data in the uplink sub-frame can be transmitted in the ring word on the base station side. Within the range of the first (CP), the synchronization arrives at the base station side. [Embodiment] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a topological structural diagram of a wireless network system formed by a base station and a user terminal according to an embodiment of the present invention. The communication system includes: a user terminal 11 and a base station 12, and there is uplink and downlink communication between the two. Therein, one or more component carriers of uplink and downlink are configured (not shown in the figure). 2 is a flowchart of a method for timing advance in a user terminal of a wireless network according to an embodiment of the present invention; first, in step S201, the user terminal 11 is activated by at least one of at least one downlink component carrier. One of the downlink component carriers, receiving timing advance indication signaling (the signaling is located on a channel between the user terminal n and the base station 12 in FIG. 1, not shown in FIG. 1), the timing advance indication signaling Includes a timing advance information. Then, in step S2〇2, the user terminal 更新 updates the timing advance -9 of the -9 - 201208426 shared by all activated uplink component carriers on the user terminal 11 side according to the timing advance information, and starts/restarts the user terminal 1 The 1 side is the timer shared by all activated uplink component carriers. Next, in step S203, the user terminal 11 determines the uplink transmission time of the user terminal based on the determined downlink reference component carrier and the updated timing advance 値. Specifically, in some applications of the embodiments of the present invention, there may be no temporal relationship between step S202 and step S203. 3 is a flow diagram of a method for timing advancement in a base station of a wireless network, in accordance with one embodiment of the present invention. First, in step S301, the base station 12 determines timing advance information based on the determined downlink reference component carrier. Then, in step S302, the base station 12 transmits timing advance indication signaling by using one of the downlink component carriers activated by at least one of the at least one downlink component carrier, where the timing advance indication signaling is included in step S3 01. Determined timing advance information. The method for timing advance in the user terminal of the carrier-synthesized wireless network and the base station provided by the present invention will be described in detail below with reference to Figs. 1, 2, and 3. The communication system shown in the topology diagram of the wireless network system formed by the base station and the user terminal in FIG. 1 includes: the user terminal 11 and the base station 12» Assume that the uplink and downlink channels of the communication system are configured with four uplink component carriers: CCU1 , CCU2, CCU3, CCU4, wherein the uplink component carriers in the initial state of the system operation are: CCU1, CCU2, CCU3, and the above three uplink component carriers share a timer timer 'and a timing
S -10- 201208426 提前値τ A。 同時，該通信系統的下行通道上被配置了 4個下行分 量載波：CCD1、CCD2、CCD3、CCD4，其中，在系統運 行初期處於啓動狀態的下行分量載波爲：CCD1、CCD2、 CCD3，此時，下行主分量載波（DL Primary CC )被配置 爲：CCD3。 上述分量載波的帶寬可以根據應用情況不同而不同， 每一個載波各自的大小不超過20 Μ。 在一個實施例中，由於啓動的分量載波係位於不同的 頻段上或者帶有很大頻偏的不連續頻率上，或者由於一些 頻率經過中繼器轉發，而另外一些頻率是在基站與用戶終 端之間直接傳輸，這些情況造成了下行分量載波CCD1、 CCD2、CCD3的傳輸延遲之差較大，例如下行分量載波 CCD1、CCD2的傳輸延遲之差在數値上大於預定値，例如 環字碼CP。此時，首先，基站12執行步驟S301:基於所確 定的基站12的下行參考分量載波，確定時序提前資訊。此 處，系統啓動時默認地將下行主分量載波CCD3配置爲下 行參考分量載波，並且，將該下行參考分量載波C CD 3的 確定資訊顯式地以指示信令形式通知用戶終端1 1，或者隱 式地通知用戶終端1 1 :在出現重連接情況下，在CCD3上 傳輸PRACH回應訊息以使用戶終端1 1將CCD3確認爲其下 行參考分量載波，或者在對NAS資訊傳輸等功能的配置中 隱含地通知用戶終端1 1將CCD3確認爲其下行參考分量載 波。結合用戶終端11的上行傳輸信號，例如PRACH信號或 -11 - 201208426 上行參考信號等，在基站1 2側的接收時間以及所確定的基 站12的下行參考分量載波CCD3，基站12可具體地計算出 對應於時序提前値TA的時序提前資訊。 本領域技術人員應當理解，上述的預定値指的是：當 基站12與用戶終端11分別選擇CCD1和CCD2爲其下行參考 分量載波時，足以導致終端用戶11發送的資料位於環字首 範圍之外的下行分量載波CCD1、CCD2的傳輸延遲之間的 差値，其具體數値並不構成對本發明的限制。 接著，基站〗2執行步驟S3 02透過下行分量載波CCD2 來發送時序提前指示信令TA_Signalling，該時序提前指示 信令中包括有在步驟S301中被基站12所確定的時序提前資 訊。 在用戶終端11側，在系統運行初期，從基站1 2獲知下 行主分量載波（DL Primary CC)被配置爲：CCD3。此處 ’對應於基站12的下行參考分量載波被確定爲下行主分量 載波CCD3，用戶終端11將下行分量載波CCD3確定爲本用 戶終端的下行參考分量載波》 首先，用戶終端1 1執行步驟S201，透過下行分量載波 CCD2而接收到時序提前指示信令TA_Signalling，該時序 提前指示信令TA_Signalling中包括來自基站I2的對應於時 序提前値TA的時序提前資訊。 然後，用戶終端1 1執行步驟S202，根據時序提前資訊 來更新其爲上行分量載波CCU1、CCU2、CCU3維護的時序 提前値TA’並啓動/重啓計時器timer。如果該計時器timer -12- 201208426 在超時前未接收到所述時序提前指示信令並被重啓，則用 戶終端11進行隨機接入以從基站12獲得時序提前値TA。 接著’用戶終端1 1執行步驟S203，基於所確定的下行 參考分量載波CCD3和所更新的時序提前値TA，確定本用 戶終端的上行發送時間。假設用戶終端1 1在下行參考分量 載波CCD3上接收到下行參考信號的時刻爲TP1 ,用戶終端 1 1根據更新的時序提前値TA，根據系統對TA値的生效時 間的配置，將在後續對應的上行子框上發送資料的時間確 定爲TP1+Zt-2TA，其中，zM爲系統所配置的TA値的生效 時間，其數値因系統配置不同而不同，例如，可以爲兩次 發送上行子框資料之間的間隔時長。上述對發送時間點的 調整以一定的補償策略抵消了下行分量載波CCD3帶來的 傳輸延遲，以及所有的啓動的上行分量載波的傳輸延遲。 用戶終端1 1在上述時間點TP1+」t-2TA發送上行子框的資 料’例如，在CCU1上發送DATA1，以及同時在CCU2上發 送DATA2，由於系統的所有的啓動的上行分量載波的通道 情況非常接近，因此，上述的DATA1和DATA2可以同步地 被基站1 2所接收到。 本領域技術人員應當理解，此處，使用兩倍的時序提 前値TA値或者其他數値對TP 1 + Z t的上行傳輸時間點進行 提前補償，並不夠成對本發明的限制，用戶終端1 1透過補 償以調整上行傳輸時間點的目的只是爲了確保用戶終端1 1 在本實施例中的載波聚合情況中所發送的上行資料在系統 的後續子框的對應的環字首範圍內同步到達基站1 2，所以 -13- 201208426 ，此處，用戶終端1 1對於上行傳輸時間點之具體的補償策 略或者調整策略並不構成對本發明的限制。同時，本領域 技術人員應當理解，參考信號可以在各個啓動的分量載波 上傳輸；而此處的下行參考分量載波指的是，基站12在計 算時序提前値TA所基於的參考信號所在的分量載波，或者 用戶終端Π根據系統對T A値的生效時間的配置，在確定其 對後續子框的上行資料的發送時間過程中所基於的參考信 號所在的分量載波》 本領域技術人員應當理解，圖2中的步驟S201，S2 02 ，S203並無嚴格的邏輯上的先後關係，亦即，在某種系統 運行情況下，三者可能如圖2中所示，按照時序依次發生 ，但在其他的運行情況下，步驟S201，S202可能依序發生 ，而步驟S203則在計時器timer未超時的任何時刻都有可能 相對獨立地發生》 可選地，上述實施例中，如果在計時器timer未超時之 前，有上行分量載波CCU4由未啓動狀態轉變爲啓動狀態 ，則上行分量載波CCU4將與其他的處於啓動狀態的上行 分量載波CCU1、CCU2、CCU3共用計時器timer以及時序 提前値TA。 根據上述的本發明的實施例，可選地，當基站1 2將下 行主分量載波CCD3從啓動狀態變爲未啓動狀態，而將 CCD2由未啓動狀態變爲啓動狀態，作爲新的下行主分量 載波，並且，上述變更過程觸發了用戶終端11的重連接過 程，則用戶終端Π將觸發一次隨機接入過程，根據系統的S -10- 201208426 Advance τ A. At the same time, four downlink component carriers are configured on the downlink channel of the communication system: CCD1, CCD2, CCD3, and CCD4, wherein the downlink component carriers that are in the startup state at the initial stage of the system operation are: CCD1, CCD2, and CCD3. The downlink primary component carrier (DL Primary CC) is configured as: CCD3. The bandwidth of the above component carriers may vary according to the application, and the size of each carrier does not exceed 20 各自. In one embodiment, since the activated component carriers are located on different frequency bands or on discontinuous frequencies with large frequency offsets, or because some frequencies are forwarded through the repeater, others are at the base station and the user terminal. Direct transmission between these causes a large difference in transmission delay between the downlink component carriers CCD1, CCD2, and CCD3. For example, the difference between the transmission delays of the downlink component carriers CCD1, CCD2 is greater than a predetermined threshold, such as the ring code CP. At this time, first, the base station 12 performs step S301: determining timing advance information based on the determined downlink reference component carrier of the base station 12. Here, the downlink primary component carrier CCD3 is configured as a downlink reference component carrier by default when the system is started, and the determination information of the downlink reference component carrier C CD 3 is explicitly notified to the user terminal 1 1 in the form of indication signaling. Implicitly notifying the user terminal 1 1 : in the case of reconnection, transmitting a PRACH response message on the CCD 3 to cause the user terminal 11 to confirm the CCD 3 as its downlink reference component carrier, or in the configuration of functions such as NAS information transmission The user terminal 11 is implicitly notified to confirm the CCD 3 as its downlink reference component carrier. The base station 12 can specifically calculate the uplink transmission signal of the user terminal 11, such as the PRACH signal or the -11 - 201208426 uplink reference signal, etc., the reception time at the base station 12 side and the determined downlink reference component carrier CCD3 of the base station 12. The timing advance information corresponding to the timing advance 値TA. It should be understood by those skilled in the art that the foregoing predetermined reference means that when the base station 12 and the user terminal 11 respectively select CCD1 and CCD2 as their downlink reference component carriers, it is sufficient that the data sent by the end user 11 is outside the range of the ring prefix. The difference between the transmission delays of the downlink component carriers CCD1, CCD2, and the specific number thereof do not constitute a limitation of the present invention. Next, the base station 2 performs step S3 02 to transmit the timing advance indication signaling TA_Signalling through the downlink component carrier CCD2, and the timing advance indication signaling includes the timing advance information determined by the base station 12 in step S301. On the user terminal 11 side, at the initial stage of system operation, it is learned from the base station 12 that the downlink primary component carrier (DL Primary CC) is configured as: CCD3. Here, the downlink reference component carrier corresponding to the base station 12 is determined as the downlink primary component carrier CCD3, and the user terminal 11 determines the downlink component carrier CCD3 as the downlink reference component carrier of the user terminal. First, the user terminal 11 performs step S201. The timing advance indication signaling TA_Signalling is received through the downlink component carrier CCD2, and the timing advance indication signaling TA_Signalling includes timing advance information corresponding to the timing advance 値TA from the base station I2. Then, the user terminal 11 executes step S202 to update the timing advance 値TA' maintained for the uplink component carriers CCU1, CCU2, CCU3 based on the timing advance information and start/restart the timer timer. If the timer timer -12-201208426 does not receive the timing advance indication signaling and is restarted before the timeout, the user terminal 11 performs random access to obtain the timing advance 値TA from the base station 12. Next, the user terminal 1 1 performs step S203, and determines the uplink transmission time of the user terminal based on the determined downlink reference component carrier CCD3 and the updated timing advance 値TA. It is assumed that the time when the user terminal 11 receives the downlink reference signal on the downlink reference component carrier CCD3 is TP1, and the user terminal 11 advances 値TA according to the updated timing, according to the configuration of the system's effective time for the TA値, which will be subsequently corresponding. The time for sending data on the uplink sub-frame is determined as TP1+Zt-2TA, where zM is the effective time of the TA configured by the system, and the number of the data is different depending on the system configuration. For example, the uplink sub-frame can be sent twice. The length of time between data. The above adjustment of the transmission time point offsets the transmission delay caused by the downlink component carrier CCD3 and the transmission delay of all the activated uplink component carriers with a certain compensation strategy. The user terminal 11 transmits the data of the uplink sub-frame at the above-mentioned time point TP1+"t-2TA', for example, transmits DATA1 on CCU1 and DATA2 on CCU2 at the same time, because the channel condition of all the uplink component carriers of the system is very Proximity, therefore, DATA1 and DATA2 described above can be synchronously received by base station 12. It should be understood by those skilled in the art that, here, twice the timing advance 値TA値 or other numbers are used to compensate the uplink transmission time point of TP 1 + Z t in advance, which is not enough to limit the present invention, and the user terminal 1 1 The purpose of adjusting the uplink transmission time point by the compensation is only to ensure that the uplink data sent by the user terminal 11 in the carrier aggregation situation in this embodiment arrives at the base station 1 synchronously within the corresponding ring prefix range of the subsequent sub-frame of the system. 2, so-13-201208426, here, the specific compensation strategy or adjustment strategy of the user terminal 11 for the uplink transmission time point does not constitute a limitation of the present invention. Meanwhile, those skilled in the art should understand that the reference signal can be transmitted on each activated component carrier; and the downlink reference component carrier herein refers to the component carrier in which the base station 12 calculates the timing advance 値TA based on the reference signal. Or the user component Π according to the configuration of the system's effective time for the TA値, the component carrier on which the reference signal based on the transmission time of the uplink data of the subsequent sub-frame is determined. Those skilled in the art should understand that FIG. 2 Steps S201, S2 02, and S203 have no strict logical sequence relationship, that is, under certain system operation conditions, the three may occur in sequence according to the timing shown in FIG. 2, but in other operations. In this case, steps S201, S202 may occur sequentially, and step S203 may occur relatively independently at any time when the timer timer has not timed out. Optionally, in the above embodiment, if the timer timer is not exceeded Before the time, if the uplink component carrier CCU4 transitions from the inactive state to the startup state, the uplink component carrier CCU4 will be started with the other components. Uplink component carrier state CCU1, CCU2, CCU3 common timing advance and timer TIMER Zhi TA. According to the embodiment of the present invention described above, optionally, when the base station 12 changes the downlink primary component carrier CCD3 from the activated state to the unactivated state, the CCD 2 is changed from the unactivated state to the activated state as a new downlink primary component. Carrier, and the above change process triggers the reconnection process of the user terminal 11, and the user terminal 触发 will trigger a random access procedure according to the system
S -14- 201208426 默認配置：將下行主分量載波用作爲下行參考分量載波， 則基站12基於該新的下行參考分量載波，亦即，下行主分 量載波CCD2，執行步驟S301，確定時序提前値資訊，並 將包含該資訊的TA信令發送至用戶終端1 1，用戶終端1 1從 基站12獲得關於新的下行主分量載波（CCD2 )的資訊， 並根據系統的默認配置，以下行主分量載波CCD2確定爲 新的下行參考分量載波後，執行步驟S2 03，結合來自基站 12的新的時序提前資訊，更新時序提前値TA，確定其透過 上行分量載波發送上行資料的時間點。同樣地，基站1 2對 對應於時序提前値T A的時序提前資訊的具體計算方法，以 及用戶終端1 1對於其後續子框的上行資料的發送時間點的 具體計算方法，並不構成對本發明的限制。 根據上述的本發明的實施例，可選地，當基站12將下 行主分量載波CCD3從啓動狀態變爲未啓動狀態，而將 CCD2由未啓動狀態變爲啓動狀態，作爲新的下行主分量 載波’並且’上述變更過程未觸發用戶終端11的重連接過 程’根據系統的默認配置，將下行主分量載波確定爲下行 參考分量載波’則基站12基於該新的下行參考分量載波， 亦即’下行主分量載波CCD2，並結合用戶終端1 1的上行 傳輸的接收時間，執行步驟S301，以確定對應於時序提前 値TA的新的時序提前資訊，並將包含該時序提前資訊的 T A指示信令發送至用戶終端丨丨，用戶終端丨丨從基站丨2獲得 關於新的下行主分量載波（CCD2 )的資訊，並根據系統 的默認配置’將下行主分量載波CCD2確定爲其下行參考 201208426 分量載波’並執行步驟s 2 03，基於上述確定的下行參考分 Λ載波’結合來自基站12的新的時序提前資訊更新其時序 提前値ΤΑ’並確定其在後續子框中透過上行分量載波發送 上行資料的時間點。同樣地，基站12對時序提前値ΤΑ的具 體計算方法’以及用戶終端U對於其上行資料的發送時間 點的具體計算方法，並不構成對本發明的限制。 根據本發明的另一實施例，系統啓動時未默認配置下 行參考分量載波，則系統運行過程中，基站12將用以傳輸 物理隨機接入回應訊息（PRACH Message 2)或者時序提 前指示信令的下行分量載波確定爲其下行參考分量載波， 例如’基站〗2將CCD1確定爲其下行參考分量載波，並在 下行分量載波CCD1上發送物理隨機接入回應訊息（ PRACH Message 2 )或者時序提前（TA )指示信令至用戶 終端1 1，對應地’用戶終端1 1在下行分量載波CCD 1上接 收到上述的物理隨機接入回應訊息（PRACH Message 2) 或者時序提前（ΤΑ)指示信令之後，也將承載該訊息或信 令的下行分量載波CCD1確定爲其下行參考分量載波。經 過此過程後，基站12以及用戶終端11都已各自確定了它們 的下行參考分量載波（CCD1)，此後，基站12以及用戶 終端11基於該下行參考分量載波CCD1，執行步驟S301或 者S203的過程，此處不再贅述。 根據本發明的另一實施例中，下行分量載波C CD 1、 CCD2、CCD3的傳輸延遲之差較小，例如在數値上小於預 定値，例如環字首CP，且系統啓動時未默認配置下行參考S-14-201208426 default configuration: the downlink primary component carrier is used as the downlink reference component carrier, and the base station 12 performs step S301 based on the new downlink reference component carrier, that is, the downlink primary component carrier CCD2, to determine the timing advance information. And transmitting the TA signaling including the information to the user terminal 1 1. The user terminal 11 obtains information about the new downlink primary component carrier (CCD2) from the base station 12, and according to the default configuration of the system, the following main component carrier After the CCD 2 is determined as the new downlink reference component carrier, step S203 is performed, and the timing advancement 値TA is updated in conjunction with the new timing advance information from the base station 12 to determine the time point at which the uplink data is transmitted through the uplink component carrier. Similarly, the specific calculation method of the timing advance information corresponding to the timing advance 値TA by the base station 12 and the specific calculation method of the transmission time point of the uplink data of the subsequent sub-frame of the user terminal 1 do not constitute the present invention. limit. According to the embodiment of the present invention described above, optionally, when the base station 12 changes the downlink primary component carrier CCD3 from the activated state to the unactivated state, the CCD 2 is changed from the unactivated state to the activated state as the new downlink primary component carrier. 'And' the above change process does not trigger the reconnection process of the user terminal 11 'determine the downlink primary component carrier as the downlink reference component carrier according to the default configuration of the system', then the base station 12 is based on the new downlink reference component carrier, ie, the downlink The main component carrier CCD2, in conjunction with the receiving time of the uplink transmission of the user terminal 11, performs step S301 to determine new timing advance information corresponding to the timing advance 値TA, and sends the TA indication signaling including the timing advance information. To the user terminal, the user terminal 获得 obtains information about the new downlink primary component carrier (CCD2) from the base station 丨2, and determines the downlink primary component carrier CCD2 as its downlink reference 201208426 component carrier according to the default configuration of the system. And performing step s 2 03, based on the determined downlink reference branching carrier 'in combination with new from the base station 12 Timing advance information update timing advance Zhi ΤΑ 'and determine a time point at which transmission of the uplink data through the subsequent sub-frame uplink component carrier. Similarly, the specific calculation method of the timing advance 基站 of the base station 12 and the specific calculation method of the transmission time point of the uplink data by the user terminal U do not constitute a limitation of the present invention. According to another embodiment of the present invention, the downlink reference component carrier is not configured by default when the system is started, and the base station 12 is configured to transmit a physical random access response message (PRACH Message 2) or timing advance indication signaling during system operation. The downlink component carrier is determined as its downlink reference component carrier. For example, 'base station〗 2 determines CCD1 as its downlink reference component carrier, and transmits a physical random access response message (PRACH Message 2) or timing advance (TA) on the downlink component carrier CCD1. Instructing signaling to the user terminal 1 1 correspondingly, after the user terminal 11 receives the above-mentioned physical random access response message (PRACH Message 2) or timing advance (ΤΑ) indication signaling on the downlink component carrier CCD 1, The downlink component carrier CCD1 carrying the message or signaling is also determined as its downlink reference component carrier. After this process, the base station 12 and the user terminal 11 have each determined their downlink reference component carrier (CCD1). Thereafter, the base station 12 and the user terminal 11 perform the process of step S301 or S203 based on the downlink reference component carrier CCD1. I will not repeat them here. According to another embodiment of the present invention, the difference between the transmission delays of the downlink component carriers C CD 1 , CCD 2 , and CCD 3 is small, for example, less than a predetermined threshold on the number, for example, a ring prefix CP, and the system is not configured by default when it is started. Downstream reference
S -16- 201208426 分量載波，則系統運行過程中，基站1 2則可將3個啓動的 下行分量載波CCD1、CCD2、CCD3中的任一下行分量載波 ，例如CCD1，確定爲本基站的下行參考分量載波。同樣 地，用戶終端11也可將3個啓動的下行分量載波CCD1、 CCD2、CCD3中的任一下行分量載波，例如CCD2，確定爲 本用戶終端11的下行參考分量載波。在基站12和用戶終端 11的下行參考分量載波確定之後，基站12基於下行參考分 量載波CCD1執行步驟S301，以及用戶終端1 1基於下行參 考分量載波CCD2執行步驟S2 03的過程，此處不再贅述。 圖4示出了根據本發明的一個實施例之在無線網路的 用戶終端中的時序提前裝置4〇〇的結構示意圖。該時序提 前裝置400包括指示信令接收模組401，時序提前啓動模組 4〇2，上行發送時間確定模組403，另外，還爲所有啓動的 上行分量載波配置有一個計時器4〇4，另外，時序提前裝 置4〇〇維護有一個時序提前値（未在圖中示出），還包括 一個超時判斷模組4〇5，隨機接入模組406以及一個下行參 考分量載波確定模組407。 指示信令接收模組401，用以透過3個啓動的下行分量 載波CCD1， CCD2， CCD3中的一個，例如CCD2，接收時 序提前指示信令（未在圖中示出），該時序提前指示信令 中包括一時序提前資訊。 時序提前啓動模組402，從指示信令接收模組40 1接收 其所獲得的時序提前指示信令中的時序提前資訊，用以根 據該時序提前資訊’更新時序提前値，並在系統初始階段 -17- 201208426 啓動，或者在系統運行過程中重啓計時器404。 上行發送時間確定模組403，用以基於所確定的下行 參考分量載波，並根據所更新的時序提前値，確定本用戶 終端的上行發送時間。 可選地，時序提前裝置400還包括隨機接入模組406， 用以爲用戶終端1 1運行隨機接入的過程。 超時判斷模組405，用以判斷計時器404是否超時，如 果計時器4 04超時前並未接收到所述時序提前指示信令， 則在其超時時刻，觸發隨機接入模組406進行隨機接入以 從基站1 2側獲得時序提前値TA。 可選地，當計時器404係處於未超時的工作狀態時， 則如果出現新增的上行分it載波，例如處於未啓動狀態的 分量載波CCU4被基站12所啓動，則分量載波CCU4可與其 他啓動的分量載波一同共用計時器404，用以時序提前値 TA的更新定時，同樣地，時序提前値TA也可以被分量載 波CCU4所共用。 可選地，用戶終端11中的時序提前裝置400還包括下 行參考分量載波確定模組407，用以確定用戶終端1 1的下 行參考分量載波。 在一個實施例中，如果系統配置的多個啓動的下行分 量載波傳輸延遲之差在數値上小於預定値，例如小於環字 首CP，則將所配置的多個啓動的下行分量載波中的任一下 行分量載波確定爲本用戶終端11的下行參考分量載波。 在另一個實施例中，如果系統配置的多個啓動的下行S -16- 201208426 component carrier, when the system is running, the base station 12 can determine any downlink component carrier CCD1, CCD2, CCD3 of the three activated downlink component carriers, such as CCD1, as the downlink reference of the base station. Component carrier. Similarly, the user terminal 11 can also determine any of the three downlink component carriers CCD1, CCD2, and CCD3, for example, CCD2, as the downlink reference component carrier of the user terminal 11. After the downlink reference component carrier of the base station 12 and the user terminal 11 is determined, the base station 12 performs step S301 based on the downlink reference component carrier CCD1, and the user terminal 11 performs the process of step S203 based on the downlink reference component carrier CCD2, and details are not described herein again. . 4 is a block diagram showing the structure of a timing advance device 4 in a user terminal of a wireless network according to an embodiment of the present invention. The timing advance device 400 includes an indication signaling receiving module 401, a timing advance activation module 4〇2, an uplink transmission time determining module 403, and a timer 4〇4 for all activated uplink component carriers. In addition, the timing advance device 4 maintains a timing advance (not shown), and includes a timeout determination module 4〇5, a random access module 406, and a downlink reference component carrier determination module. 407. The indication signaling receiving module 401 is configured to receive timing advance indication signaling (not shown in the figure) through one of the three activated downlink component carriers CCD1, CCD2, and CCD3 (not shown in the figure), the timing advance indication signal The order includes a timing advance information. The timing advance start module 402 receives the timing advance information in the timing advance indication signaling obtained by the instruction signaling receiving module 40 1 for updating the timing advance according to the timing advance information, and in the initial stage of the system. -17- 201208426 Start, or restart timer 404 while the system is running. The uplink sending time determining module 403 is configured to determine an uplink sending time of the user terminal based on the determined downlink reference component carrier and according to the updated timing advance. Optionally, the timing advance device 400 further includes a random access module 406 for running a random access procedure for the user terminal 11. The timeout judging module 405 is configured to determine whether the timer 404 has timed out. If the timer advance indication signaling is not received before the timer 0410 expires, the random access module is triggered at the timeout moment. 406 performs random access to obtain timing advance 値TA from the base station 1 2 side. Optionally, when the timer 404 is in an untimed working state, if a new uplink sub-bit carrier occurs, for example, the component carrier CCU4 in the inactive state is activated by the base station 12, the component carrier CCU4 may be The other activated component carriers share the timer 404 for timing advancement 値TA update timing. Similarly, the timing advance 値TA can also be shared by the component carrier CCU4. Optionally, the timing advance device 400 in the user terminal 11 further includes a downlink reference component carrier determining module 407 for determining a downlink reference component carrier of the user terminal 11. In an embodiment, if the difference between the transmission delays of the plurality of activated downlink component carriers configured by the system is less than a predetermined threshold on the number, for example, less than the ring prefix CP, the configured one of the plurality of activated downlink component carriers Any downlink component carrier is determined as the downlink reference component carrier of the user terminal 11. In another embodiment, if the system is configured with multiple startups down
S -18 - 201208426 分量載波傳輸延遲之差在數値上大於預定値，例如環字首 CP，則下行參考分量載波確定模組407將用以傳輸物理隨 機接入回應訊息（PRACH message 2)或者時序提前指示 信令（TA Command )的下行分量載波，例如CCD2，確定 爲下行參考分量載波。 在又一個實施例中，在系統配置的多個啓動的下行分 量載波的傳輸延遲之差在數値上大於預定値，例如環字首 CP的情況下，可選地，下行參考分量載波確定模組407也 可以將下行主分量載波，例如CCD 3，確定爲下行參考分 量載波。當基站12將下行主分量載波從CCD3變更爲CCD2 ，且該下行主分量載波的變更觸發了用戶終端11的重連接 時，用戶終端1 1中的隨機接入模組406透過隨機接入以獲 得基站12新確定的下行主分量載波CCD2以及新確定的時 序提前値TA，然後，下行參考分量載波確定模組407將新 確定的下行主分量載波CCD 2確定爲下行參考分量載波。 圖5示出了根據本發明的一個實施例之在無線網路的 基站12中的時序提前裝置的結構示意圖。時序提前裝置 500包括時序提前値確定模組501，指示信令發送模組502 ，以及下行參考分量載波確定模組5 0 3 » 時序提前値確定模組501，基於所確定的本基站的下 行參考分量載波，以確定用戶終端11的時序提前資訊； 指示信令發送模組502，用以透過啓動的下行分量載 波：CCD1，CCD2，CCD3中的一個，例如CCD2，發送時 序提前指示信令；該時序提前指示信令中包括來自時序提 -19- 201208426 前値確定模組5 0 1的時序提前資訊。 下行參考分量載波確定模組503，用以確定基站12的 下行參考分量載波。 在一個實施例中，如果配置的多個啓動的下行分量載 波的傳輸延遲之差在數値上小於預定値，例如環字首CP， 則下行參考分量載波確定模組503可將多個啓動的下行分 量載波中的任一個下行分量載波，例如CCD1，確定爲本 基站的下行參考分量載波。 在另一個實施例中，如果配置的多個啓動的下行分量 載波的傳輸延遲之差在數値上大於預定値，例如環字首CP ，則下行參考分量載波確定模組503可將系統原來的下行 主分量載波，例如CCD 3，確定爲下行參考分量載波。可 選地，當基站12將下行主分量載波從CCD3變更爲CCD2時 ，則下行參考分量載波確定模組503將變更後的下行主分 量載波CCD 2確定爲新的下行參考分量載波。 在又一個實施例中，如果配置的多個啓動的下行分量 載波的傳輸延遲之差在數値上大於預定値，例如環字首， 則下行參考分量載波確定模組503將本基站12用以傳輸物 理隨機接入回應訊息（PRACH message 2)或者時序提前 指示信令（TA Command)的下行分量載波確定爲下行參 考分量載波。可選地，當基站12用以承載發送上述PRACH message 2或TA Command的下行分量載波發生變更時，例 如自CCD1變爲CCD2，則相應地，下行參考分量載波確定 模組503將CCD2確定爲新的下行參考分量載波。S -18 - 201208426 The difference between the component carrier transmission delays is greater than a predetermined threshold, such as a ring prefix CP, and the downlink reference component carrier determining module 407 is to transmit a physical random access response message (PRACH message 2) or The downlink component carrier of the timing advance indication signaling (TA Command), such as CCD2, is determined as the downlink reference component carrier. In still another embodiment, in the case where the difference in transmission delays of the plurality of activated downlink component carriers configured by the system is greater than a predetermined threshold, such as a ring prefix CP, optionally, the downlink reference component carrier determines a mode. Group 407 may also determine a downlink primary component carrier, such as CCD 3, as a downlink reference component carrier. When the base station 12 changes the downlink primary component carrier from CCD3 to CCD2, and the change of the downlink primary component carrier triggers the reconnection of the user terminal 11, the random access module 406 in the user terminal 11 obtains through random access. The newly determined downlink primary component carrier CCD2 of the base station 12 and the newly determined timing advance 値TA, then the downlink reference component carrier determining module 407 determines the newly determined downlink primary component carrier CCD 2 as the downlink reference component carrier. Figure 5 is a block diagram showing the structure of a timing advancement device in a base station 12 of a wireless network in accordance with one embodiment of the present invention. The timing advance device 500 includes a timing advance determination module 501, an indication signaling module 502, and a downlink reference component carrier determination module 5 0 3 » a timing advance determination module 501, based on the determined downlink reference of the base station. Component carrier to determine timing advance information of the user terminal 11; the indication signaling module 502 is configured to send timing advance indication signaling through one of the activated downlink component carriers: CCD1, CCD2, and CCD3, such as CCD2; The timing advance indication signaling includes timing advance information from the timing determination module -19-201208426. The downlink reference component carrier determining module 503 is configured to determine the downlink reference component carrier of the base station 12. In an embodiment, if the difference of the transmission delays of the configured multiple downlink component carriers is less than a predetermined threshold, such as a ring prefix CP, the downlink reference component carrier determining module 503 may activate multiple Any one of the downlink component carriers, such as CCD1, is determined to be the downlink reference component carrier of the base station. In another embodiment, if the difference of the transmission delays of the configured multiple downlink component carriers is greater than a predetermined threshold, such as a ring prefix CP, the downlink reference component carrier determining module 503 can The downlink primary component carrier, such as CCD 3, is determined to be the downlink reference component carrier. Alternatively, when the base station 12 changes the downlink primary component carrier from CCD3 to CCD2, the downlink reference component carrier determining module 503 determines the changed downlink primary component carrier CCD 2 as a new downlink reference component carrier. In still another embodiment, if the difference between the transmission delays of the configured plurality of activated downlink component carriers is greater than a predetermined threshold, such as a ring prefix, the downlink reference component carrier determining module 503 uses the base station 12 The downlink component carrier transmitting the physical random access response message (PRACH message 2) or the timing advance indication signaling (TA Command) is determined as the downlink reference component carrier. Optionally, when the downlink component carrier used by the base station 12 to transmit the PRACH message 2 or the TA Command is changed, for example, from CCD1 to CCD2, the downlink reference component carrier determining module 503 determines CCD2 as new. The downlink reference component carrier.
S -20- 201208426 需要說明的是，上述實施例僅是示範性的，而非對本 發明的限制。任何不背離本發明精神的技術方案均應落入 本發明的保護範圍之內，這包括使用在不同實施例中出現 的不同技術特徵，調度方法可以進行組合，以取得有益效 果》此外，不應將申請專利範圍中的任何附圖標記視爲限 制所涉及的申請專利範圍；“包括”一詞不排除其他申請專 利範圍或說明書中未列出的裝置或步驟：裝置前的“一個” 不排除多個這樣的裝置的存在；在包含多個裝置的設備中 ，該多個裝置中的一個或多個的功能可由同一個硬體或軟 體模組來實現；“第一”、“第二”、“第三”等詞語僅用來表 示名稱，而並不表示任何特定的順序。 【圖式簡單說明】 透過閱讀以下參照附圖對非限制性實施例所作的詳細 描述，本發明的其他特徵、目的和優點將會變得更明顯。 圖1爲根據本發明的一個實施例之基站和用戶終端構 成的無線網路系統拓撲結構圖； 圖2爲根據本發明的一個實施例之在無線網路的用戶 終端中的時序提前的方法流程圖； 圖3爲根據本發明的一個實施例之在無線網路的基站 中的時序提前的方法流程圖； 圖4示出了根據本發明的一個實施例之在無線網路的 用戶終端中的時序提前裝置的結構示意圖； 圖5示出了根據本發明的一個實施例之在無線網路的 -21 - 201208426 基站中的時序提前裝置的結構示意圖； 其中，相同或相似的附圖標記表示相同或相似的步驟 特徵或裝置（模組）。 【主要元件符號說明】 1 1 :用戶終端 1 2 :基站 400 :時序提前裝置 4 0 1 :指示信令接收模組 402 :時序提前啓動模組 403 :上行發送時間確定模組 404 :計時器 405 :超時判斷模組 406 :隨機接入模組 407 :下行參考分量載波確定模組 500 :時序提前裝置 5 〇 1 :時序提前値確定模組 502 :指示信令發送模組 5 03 :下行參考分量載波確定模組S -20- 201208426 It is to be noted that the above-described embodiments are merely exemplary and not limiting of the invention. Any technical solutions that do not depart from the spirit of the present invention should fall within the scope of the present invention, including the use of different technical features that appear in different embodiments, and the scheduling methods can be combined to achieve beneficial effects. Any reference signs in the scope of the patent application are to be considered as limiting the scope of the patent application; the term "comprising" does not exclude the scope of the other claims or the devices or steps not listed in the specification: "one" before the device does not exclude The presence of a plurality of such devices; in a device comprising a plurality of devices, the functionality of one or more of the plurality of devices can be implemented by the same hardware or software module; "first", "second" Words such as "third" are used only to denote names, and do not denote any particular order. BRIEF DESCRIPTION OF THE DRAWINGS Other features, objects, and advantages of the invention will be apparent from the description of the appended claims. 1 is a topological structural diagram of a wireless network system composed of a base station and a user terminal according to an embodiment of the present invention; FIG. 2 is a flow chart of a method for timing advance in a user terminal of a wireless network according to an embodiment of the present invention; Figure 3 is a flow chart of a method for timing advancement in a base station of a wireless network in accordance with one embodiment of the present invention; Figure 4 illustrates a user terminal in a wireless network in accordance with one embodiment of the present invention. FIG. 5 is a schematic structural diagram of a timing advance apparatus in a base station of a wireless network - 21 to 2008426 according to an embodiment of the present invention; wherein the same or similar reference numerals denote the same Or similar step features or devices (modules). [Description of main component symbols] 1 1 : User terminal 1 2 : Base station 400 : Timing advancement device 4 0 1 : Indication signaling receiving module 402 : Timing advance start module 403 : Uplink transmission time determining module 404 : Timer 405 : timeout judgment module 406: random access module 407: downlink reference component carrier determination module 500: timing advance device 5 〇 1: timing advance 値 determination module 502: indication signaling module 5 03: downlink reference Component carrier determination module
S -22-S -22-