TWI451788B - A method and apparatus for timing advance in a wireless network for carrier aggregation - Google Patents

A method and apparatus for timing advance in a wireless network for carrier aggregation Download PDF

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TWI451788B
TWI451788B TW100110983A TW100110983A TWI451788B TW I451788 B TWI451788 B TW I451788B TW 100110983 A TW100110983 A TW 100110983A TW 100110983 A TW100110983 A TW 100110983A TW I451788 B TWI451788 B TW I451788B
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component carrier
timing advance
downlink
uplink
indication signaling
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TW100110983A
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TW201208426A (en
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Tao Yang
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Alcatel Lucent
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

載波聚合的無線網路中用於時序提前的方法和裝置Method and apparatus for timing advance in a carrier aggregation wireless network

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。The present invention relates to wireless network communications, and more particularly to methods and apparatus for timing advancement in base stations and user terminals in a wireless network for carrier aggregation.

目前，採用正交分頻多工的長期演進(LTE)系統中，為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，這種操作稱為時序校正(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。At present, 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, it is necessary to make signals of multiple user terminals be used at the base station. Synchronous reception, 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, according to the received TA, a start time of transmitting the subsequent uplink sub-frame.

在LTE系統中，用戶終端僅被配置一個不大於20 M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個分量載波(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，但尚缺乏針對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。In an LTE system, a user terminal is configured with only one carrier resource of no more than 20 M, and resources used for all user terminals of the system or scheduled resources are also limited to only one carrier of the LTE system. In LTE-Advanced, carrier aggregation is supported, including continuous carrier aggregation and discontinuous carrier aggregation between in-band and inter-band, and the maximum energy aggregation bandwidth is up to 100 MHz. Therefore, if one user terminal can be configured with one to five component carriers, the resources used by the user terminal or the scheduled resources may be distributed on one to five component carriers. This increases data transmission bandwidth and scheduling flexibility, but there is still a lack of improved timing advancement technology for the user terminal side of the carrier aggregation feature of the LTE-A system.

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，因為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。Under the carrier aggregation condition 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 terminal to be in the carrier aggregation. The uplink sub-frame sent in the case may not be able to synchronize to the base station. For the technical problem, the present invention proposes a method for implementing timing advance in a base station and a user terminal in a wireless network in a case of application for carrier aggregation. Device.

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啟動的上行分量載波共用一個計時器以及一個時序提前值，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啟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提前值，並啟動/重啟所述計時器，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值，確定本用戶終端的上行發送時間。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 advance value, and the method includes the following steps: transmitting all of the at least one downlink component carrier One of the downlink component carriers, receiving timing advance indication signaling, the timing advance indication signaling includes timing advance information; updating the timing advance value according to the timing advance information, and starting/restarting the timer, and based on the determined The downlink reference component carrier and the updated timing advance value determine the uplink transmission time of the user terminal.

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啟動的上行分量載波共用一個計時器以及一時序提前值，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啟動的上行分量載波所共用的時序提前值；以及透過至少一個下行分量載波中所有啟動的下行分量載波中的一個啟動的下行分量載波，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。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 value, and the method includes the steps of: determining a timing advance based on the determined downlink reference component carrier. Information that the timing advance information corresponds to a timing advance value common to all of the activated uplink component carriers described above; and a downlink component carrier that is activated by one of all activated downlink component carriers in the at least one downlink component carrier, transmitting a timing advance indication Signaling, the timing advance indication signaling includes the foregoing timing advance information.

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啟動的上行分量載波共用一個計時器以及一時序提前值，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啟動的下行分量載波，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；-　時序提前啟動模組，用以根據所述時序提前指示信令中的時序提前資訊來更新所述時序提前值，並啟動/重啟所述計時器；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值，確定本用戶終端的上行發送時間。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 value, and the apparatus includes: - an indication signaling receiving module, configured to receive a downlink component carrier that is activated by 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 value according to timing advance information in the timing advance indication signaling, and start/ And restarting the timer; and - an uplink sending time determining module, configured to determine an uplink sending time of the user terminal based on the determined downlink reference component carrier and the updated timing advance value.

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啟動的上行分量載波共用一個計時器以及一時序提前值，該裝置包括：-　時序提前值確定模組，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啟動的下行分量載波，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。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 value, and the apparatus includes: - a timing advance value 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.

本發明中提出了因為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，並使基站在為用戶終端確定時序提前值時，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值，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。如果所有啟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。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. a component carrier, and when the base station determines the timing advance value for the user terminal, and when the user terminal determines the uplink transmission time, the transmission delay of the downlink reference component carrier that the base station and the user terminal respectively are based on is the same, therefore, the user terminal can When it receives the downlink reference signal, the uplink transmission time point is correctly determined according to the timing advance value determined by the base station, and thus, in the case of carrier aggregation, the timing advance of the user terminal is correctly 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 first (CP) range, the synchronization arrives at the base station side.

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。The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

圖1為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11以及基站12，兩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)。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. One or more uplink and downlink component carriers are configured (not shown in the figure).

圖2為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S201中，用戶終端11透過至少一個下行分量載波中的至少一個啟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11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。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 transmits a downlink initiated by at least one of at least one downlink component carrier. One of the component carriers receives timing advance indication signaling (the signaling is located on a channel between the user terminal 11 and the base station 12 in FIG. 1, not shown in FIG. 1), and the timing advance indication signaling includes A timing advance information.

然後，在步驟S202中，用戶終端11根據時序提前資訊來更新用戶終端11側之為所有啟動的上行分量載波所共用的時序提前值，並啟動/重啟用戶終端11側之為所有啟動的上行分量載波所共用的計時器。Then, in step S202, the user terminal 11 updates the timing advance value shared by all the activated uplink component carriers on the user terminal 11 side according to the timing advance information, and starts/restarts all activated uplink components on the user terminal 11 side. The timer shared by the carrier.

接著，在步驟S203中，用戶終端11基於所確定的下行參考分量載波和所更新的時序提前值，確定本用戶終端的上行發送時間。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 value.

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S203之間可以不存在時序上的先後關係。Specifically, in some applications of the embodiments of the present invention, there may be no temporal relationship between step S202 and step S203.

圖3為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。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.

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。First, in step S301, the base station 12 determines timing advance information based on the determined downlink reference component carrier.

然後，在步驟S302中，基站12透過至少一個下行分量載波中的至少一個啟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S301中確定的時序提前資訊。Then, in step S302, the base station 12 transmits the 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 includes the timing determined in step S301. Advance information.

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。The user terminal for the carrier aggregation wireless network and the method for timing advance in the base station provided by the present invention will be described in detail below with reference to FIG. 1, FIG. 2 and FIG. 3.

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啟動狀態的上行分量載波為：CCU1、CCU2、CCU3，上述3個上行分量載波共用一個計時器timer，以及一個時序提前值TA。The communication system shown in the topology diagram of the wireless network system composed of the base station and the user terminal in FIG. 1 includes a user terminal 11 and a base station 12. It is assumed that four uplink component carriers are configured on the uplink and downlink channels of the communication system: CCU1, CCU2, CCU3, and CCU4, wherein the uplink component carriers that are in the initial state during the initial operation of the system are: CCU1, CCU2, CCU3, and the above three The uplink component carriers share a timer timer and a timing advance value TA.

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啟動狀態的下行分量載波為：CCD1、CCD2、CCD3，此時，下行主分量載波(DL Primary CC)被配置為：CCD3。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.

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 M。The bandwidth of the above component carriers may vary according to the application, and the size of each carrier does not exceed 20 M.

在一個實施例中，由於啟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值上大於預定值，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，系統啟動時默認地將下行主分量載波CCD3配置為下行參考分量載波，並且，將該下行參考分量載波CCD3的確定資訊顯式地以指示信令形式通知用戶終端11，或者隱式地通知用戶終端11：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11將CCD3確認為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11將CCD3確認為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信號或上行參考信號等，在基站12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值TA的時序提前資訊。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 numerically greater than a predetermined value, such as a 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 CCD3 is explicitly notified to the user terminal 11 in the form of indication signaling, or implicitly Notifying the user terminal 11 that, in the case where reconnection occurs, the PRACH response message is transmitted on the CCD 3 to cause the user terminal 11 to confirm the CCD 3 as its downlink reference component carrier, or implicitly notify the user in the configuration of functions such as NAS information transmission. The terminal 11 confirms the CCD 3 as its downlink reference component carrier. In combination with the uplink transmission signal of the user terminal 11, such as the PRACH signal or the uplink reference signal, etc., the receiving time at the base station 12 side and the determined downlink reference component carrier CCD3 of the base station 12, the base station 12 can specifically calculate the timing advance value. TA timing advance information.

本領域技術人員應當理解，上述的預定值指的是：當基站12與用戶終端11分別選擇CCD1和CCD2為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值，其具體數值並不構成對本發明的限制。It should be understood by those skilled in the art that the foregoing predetermined value refers to 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 values thereof do not constitute a limitation of the present invention.

接著，基站12執行步驟S302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。Next, the base station 12 performs step S302 to transmit timing advance indication signaling TA_Signalling through the downlink component carrier CCD2, and the timing advance indication signaling includes timing advance information determined by the base station 12 in step S301.

在用戶終端11側，在系統運行初期，從基站12獲知下行主分量載波(DL Primary CC)被配置為：CCD3。此處，對應於基站12的下行參考分量載波被確定為下行主分量載波CCD3，用戶終端11將下行分量載波CCD3確定為本用戶終端的下行參考分量載波。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.

首先，用戶終端11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12的對應於時序提前值TA的時序提前資訊。First, the user terminal 11 performs step S201, and receives timing advance indication signaling TA_Signalling through the downlink component carrier CCD2, and the timing advance indication signaling TA_Signalling includes timing advance information corresponding to the timing advance value TA from the base station 12.

然後，用戶終端11執行步驟S202，根據時序提前資訊來更新其為上行分量載波CCU1、CCU2、CCU3維護的時序提前值TA，並啟動/重啟計時器timer。如果該計時器timer在超時前未接收到所述時序提前指示信令並被重啟，則用戶終端11進行隨機接入以從基站12獲得時序提前值TA。Then, the user terminal 11 performs step S202 to update the timing advance value TA maintained for the uplink component carriers CCU1, CCU2, CCU3 according to the timing advance information, and starts/restarts the timer timer. If the timer timer 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 value TA from the base station 12.

接著，用戶終端11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值TA，確定本用戶終端的上行發送時間。假設用戶終端11在下行參考分量載波CCD3上接收到下行參考信號的時刻為TP1，用戶終端11根據更新的時序提前值TA，根據系統對TA值的生效時間的配置，將在後續對應的上行子框上發送資料的時間確定為TP1 +⊿t-2TA，其中，⊿t為系統所配置的TA值的生效時間，其數值因系統配置不同而不同，例如，可以為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，以及所有的啟動的上行分量載波的傳輸延遲。用戶終端11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，由於系統的所有的啟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12所接收到。Next, the user terminal 11 performs step S203 to determine the uplink transmission time of the user terminal based on the determined downlink reference component carrier CCD3 and the updated timing advance value 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 according to the updated timing advance value TA, according to the configuration of the system effective time for the TA value, will be in the subsequent corresponding uplink. The time for sending data on the frame is determined as T P1 +⊿t-2TA, where ⊿t is the effective time of the TA value configured by the system, and the value varies 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 T P1 +⊿t-2TA, for example, transmitting DATA1 on the CCU1 and simultaneously transmitting DATA2 on the CCU2, due to the channel condition of all the activated uplink component carriers of the system. Very close, therefore, DATA1 and DATA2 described above can be received synchronously by base station 12.

本領域技術人員應當理解，此處，使用兩倍的時序提前值TA值或者其他數值對TP1+⊿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11透過補償以調整上行傳輸時間點的目的只是為了確保用戶終端11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12，所以，此處，用戶終端11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啟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在計算時序提前值TA所基於的參考信號所在的分量載波，或者用戶終端11根據系統對TA值的生效時間的配置，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。It should be understood by those skilled in the art that, here, twice the timing advance value TA value or other values are used to compensate the uplink transmission time point of TP1+⊿t in advance, which is not enough to limit the present invention, and the user terminal 11 adjusts through compensation. The purpose of the uplink transmission time point 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 12 synchronously within the corresponding ring prefix range of the subsequent sub-frame of the system, so here The specific compensation strategy or adjustment policy 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 reference signal on which the timing advance value TA is based. Or, the user terminal 11 determines the component carrier on which the reference signal is based in the process of determining the transmission time of the uplink data of the subsequent sub-frame according to the configuration of the system's effective time for the TA value.

本領域技術人員應當理解，圖2中的步驟S201，S202，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未超時的任何時刻部有可能相對獨立地發生。Those skilled in the art should understand that steps S201, S202, and S203 in FIG. 2 have no strict logical relationship, that is, in a certain system operation, the three may be as shown in FIG. This occurs in sequence, but in other operational situations, steps S201, S202 may occur sequentially, and step S203 may occur relatively independently at any time when the timer timer has not timed out.

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由未啟動狀態轉變為啟動狀態，則上行分量載波CCU4將與其他的處於啟動狀態的上行分量載波CCU1、CCU2、CCU3共用計時器timer以及時序提前值TA。Optionally, in the foregoing embodiment, if the uplink component carrier CCU4 transitions from the inactive state to the startup state before the timer timer expires, the uplink component carrier CCU4 and other uplink component carriers CCU1 in the startup state. The CCU2 and the CCU3 share a timer timer and a timing advance value TA.

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從啟動狀態變為未啟動狀態，而將CCD2由未啟動狀態變為啟動狀態，作為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11將觸發一次隨機接入過程，根據系統的默認配置：將下行主分量載波用作為下行參考分量載波，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，確定時序提前值資訊，並將包含該資訊的TA信令發送至用戶終端11，用戶終端11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確定為新的下行參考分量載波後，執行步驟S203，結合來自基站12的新的時序提前資訊，更新時序提前值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12對對應於時序提前值TA的時序提前資訊的具體計算方法，以及用戶終端11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。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 triggers the reconnection process of the user terminal 11, and the user terminal 11 will trigger a random access procedure. According to the default configuration of the system: the downlink primary component carrier is used as the downlink reference component carrier, and the base station 12 is based on The new downlink reference component carrier, that is, the downlink primary component carrier CCD2, performs step S301, determines the timing advance value information, and transmits the TA signaling including the information to the user terminal 11, and the user terminal 11 obtains information about the base station 12. The information of the new downlink primary component carrier (CCD2), and according to the default configuration of the system, after the following line primary component carrier CCD2 is determined as the new downlink reference component carrier, step S203 is performed, in combination with the new timing advance information from the base station 12, The timing advance value TA is updated 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 value 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 by the user terminal 11 do not constitute a limitation of the present invention.

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從啟動狀態變為未啟動狀態，而將CCD2由未啟動狀態變為啟動狀態，作為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為下行參考分量載波，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11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值TA的新的時序提前資訊，並將包含該時序提前資訊的TA指示信令發送至用戶終端11，用戶終端11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，將下行主分量載波CCD2確定為其下行參考分量載波，並執行步驟S203，基於上述確定的下行參考分量載波，結合來自基站12的新的時序提前資訊更新其時序提前值TA，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對時序提前值TA的具體計算方法，以及用戶終端11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。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 foregoing change process does not trigger the reconnection process of the user terminal 11, and the downlink primary component carrier is determined as the downlink reference component carrier according to the default configuration of the system, and the base station 12 is based on the new downlink reference component carrier, that is, the downlink. The primary 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 value TA, and sends TA indication signaling including the timing advance information to The user terminal 11, the user terminal 11 obtains information about the new downlink primary component carrier (CCD2) from the base station 12, and determines the downlink primary component carrier CCD2 as its downlink reference component carrier according to the default configuration of the system, and performs step S203. Based on the determined downlink reference component carrier, the timing update is updated in conjunction with the new timing advance information from the base station 12. Value TA, 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 value TA by the base station 12 and the specific calculation method of the transmission time point of the uplink data of the user terminal 11 do not constitute a limitation of the present invention.

根據本發明的另一實施例，系統啟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為其下行參考分量載波，例如，基站12將CCD1確定為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11，對應地，用戶終端11在下行分量載波CCD1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(TA)指示信令之後，也將承載該訊息或信令的下行分量載波CCD1確定為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。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, the base station 12 determines the 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 11, correspondingly, after receiving the physical random access response message (PRACH Message 2) or timing advance (TA) indication signaling on the downlink component carrier CCD1, the user terminal 11 will also carry the The downlink component carrier CCD1 of the message or signaling is 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.

根據本發明的另一實施例中，下行分量載波CCD1、CCD2、CCD3的傳輸延遲之差較小，例如在數值上小於預定值，例如環字首CP，且系統啟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則可將3個啟動的下行分量載波CCD1、CCD2、CCD3中的任一下行分量載波，例如CCD1，確定為本基站的下行參考分量載波。同樣地，用戶終端11也可將3個啟動的下行分量載波CCD1、CCD2、CCD3中的任一下行分量載波，例如CCD2，確定為本用戶終端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11基於下行參考分量載波CCD2執行步驟S203的過程，此處不再贅述。According to another embodiment of the present invention, the difference of the transmission delays of the downlink component carriers CCD1, CCD2, and CCD3 is small, for example, numerically less than a predetermined value, such as a ring prefix CP, and the downlink reference component is not configured by default when the system is started. For the carrier, the base station 12 can determine any downlink component carrier CCD1, CCD2, and CCD3 of the three activated downlink component carriers CCD1, CCD2, and CCD3, for example, CCD1, as the downlink reference component carrier of the base station. 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 base station 12 and the downlink reference component carrier of the user terminal 11 are 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.

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400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，時序提前啟動模組402，上行發送時間確定模組403，另外，還為所有啟動的上行分量載波配置有一個計時器404，另外，時序提前裝置400維護有一個時序提前值(未在圖中示出)，還包括一個超時判斷模組405，隨機接入模組406以及一個下行參考分量載波確定模組407。4 shows a block diagram of a timing advancement device 400 in a user terminal of a wireless network in accordance with one embodiment of the present invention. The timing advancement apparatus 400 includes an indication signaling receiving module 401, a timing advance activation module 402, an uplink transmission time determining module 403, and a timer 404 for all activated uplink component carriers. The device 400 maintains a timing advance value (not shown), and includes a timeout determination module 405, a random access module 406, and a downlink reference component carrier determination module 407.

指示信令接收模組401，用以透過3個啟動的下行分量載波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。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, CCD3, such as CCD2, the timing advance indication signal The order includes a timing advance information.

時序提前啟動模組402，從指示信令接收模組401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，更新時序提前值，並在系統初始階段啟動，或者在系統運行過程中重啟計時器404。The timing advance start module 402 receives the timing advance information in the timing advance indication signaling obtained by the instruction signaling receiving module 401, and updates the timing advance value according to the timing advance information, and starts in the initial stage of the system. , or restart the timer 404 while the system is running.

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值，確定本用戶終端的上行發送時間。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 value.

可選地，時序提前裝置400還包括隨機接入模組406，用以為用戶終端11運行隨機接入的過程。Optionally, the timing advance device 400 further includes a random access module 406 for running a random access procedure for the user terminal 11.

超時判斷模組405，用以判斷計時器404是否超時，如果計時器404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12側獲得時序提前值TA。The timeout judging module 405 is configured to determine whether the timer 404 times out. If the timing advance indication signaling is not received before the timer 404 times out, the random access module 406 is triggered at the timeout time. Random access is performed to obtain the timing advance value TA from the base station 12 side.

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量載波，例如處於未啟動狀態的分量載波CCU4被基站12所啟動，則分量載波CCU4可與其他啟動的分量載波一同共用計時器404，用以時序提前值TA的更新定時，同樣地，時序提前值TA也可以被分量載波CCU4所共用。Optionally, when the timer 404 is in an untimed working state, if a new uplink component 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 combined with other The activated component carriers share a timer 404 for updating the timing of the timing advance value TA. Similarly, the timing advance value TA can also be shared by the component carrier CCU4.

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11的下行參考分量載波。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.

在一個實施例中，如果系統配置的多個啟動的下行分量載波傳輸延遲之差在數值上小於預定值，例如小於環字首CP，則將所配置的多個啟動的下行分量載波中的任一下行分量載波確定為本用戶終端11的下行參考分量載波。In an embodiment, if the difference between the plurality of activated downlink component carrier transmission delays configured by the system is numerically less than a predetermined value, for example, less than the ring prefix first CP, any one of the configured plurality of activated downlink component carriers is configured. A downlink component carrier is determined as the downlink reference component carrier of the user terminal 11.

在另一個實施例中，如果系統配置的多個啟動的下行分量載波傳輸延遲之差在數值上大於預定值，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，確定為下行參考分量載波。In another embodiment, if the difference between the plurality of activated downlink component carrier transmission delays configured by the system is greater than a predetermined value, such as a ring prefix CP, the downlink reference component carrier determining module 407 is configured to transmit physical randomness. The downlink component carrier of the access response message (PRACH message 2) or the timing advance indication signaling (TA Command), for example, CCD2, is determined as the downlink reference component carrier.

在又一個實施例中，在系統配置的多個啟動的下行分量載波的傳輸延遲之差在數值上大於預定值，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CCD3，確定為下行參考分量載波。當基站12將下行主分量載波從CCD3變更為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11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值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CCD2確定為下行參考分量載波。In still another embodiment, the difference between the transmission delays of the plurality of activated downlink component carriers configured in the system is greater than a predetermined value, such as a ring prefix CP, optionally, a downlink reference component carrier determining module. 407 may also determine a downlink primary component carrier, such as CCD3, 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 the base station through random access. The newly determined downlink primary component carrier CCD2 and the newly determined timing advance value TA, and then the downlink reference component carrier determining module 407 determines the newly determined downlink primary component carrier CCD2 as the downlink reference component carrier.

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包括時序提前值確定模組501，指示信令發送模組502，以及下行參考分量載波確定模組503。FIG. 5 shows a block diagram of a timing advance 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 value determining module 501, an instruction signaling module 502, and a downlink reference component carrier determining module 503.

時序提前值確定模組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，用以透過啟動的下行分量載波：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前值確定模組501的時序提前資訊。The timing advance value determining module 501 is configured to determine timing advance information of the user terminal 11 based on the determined downlink reference component carrier of the local base station, and the signaling signaling module 502 is configured to transmit the downlink component carrier: CCD1, CCD2 One of the CCDs, for example, CCD2, transmits timing advance indication signaling; the timing advance indication signaling includes timing advance information from the timing advance value determining module 501.

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。The downlink reference component carrier determining module 503 is configured to determine a downlink reference component carrier of the base station 12.

在一個實施例中，如果配置的多個啟動的下行分量載波的傳輸延遲之差在數值上小於預定值，例如環字首CP，則下行參考分量載波確定模組503可將多個啟動的下行分量載波中的任一個下行分量載波，例如CCD1，確定為本基站的下行參考分量載波。In an embodiment, if the difference of the transmission delays of the configured multiple downlink component carriers is less than a predetermined value, such as a ring prefix CP, the downlink reference component carrier determining module 503 may perform multiple initiated downlinks. Any one of the component carriers, such as CCD1, is determined to be the downlink reference component carrier of the base station.

在另一個實施例中，如果配置的多個啟動的下行分量載波的傳輸延遲之差在數值上大於預定值，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CCD3，確定為下行參考分量載波。可選地，當基站12將下行主分量載波從CCD3變更為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CCD2確定為新的下行參考分量載波。In another embodiment, if the difference of the transmission delays of the configured plurality of activated downlink component carriers is greater than a predetermined value, such as a ring prefix CP, the downlink reference component carrier determining module 503 may downlink the system. The primary component carrier, such as CCD3, is determined to be the downlink reference component carrier. Optionally, 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 CCD2 as a new downlink reference component carrier.

在又一個實施例中，如果配置的多個啟動的下行分量載波的傳輸延遲之差在數值上大於預定值，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為下行參考分量載波。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變為CCD2，則相應地，下行參考分量載波確定模組503將CCD2確定為新的下行參考分量載波。In still another embodiment, if the difference in transmission delays of the configured plurality of activated downlink component carriers is greater than a predetermined value, such as a ring prefix, the downlink reference component carrier determining module 503 uses the base station 12 for transmission. The downlink component carrier of 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.

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為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。It should be noted that the above-described embodiments are merely exemplary and not limiting of the invention. Any technical solution that does 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 a beneficial effect. In addition, any reference signs in the scope of the claims should not be construed as limiting the scope of the claimed invention; the term "comprising" does not exclude the scope of the other claims or the devices or steps not listed in the specification; A "does not exclude the existence of a plurality of such devices; in a device comprising a plurality of devices, the function of one or more of the plurality of devices can be implemented by the same hardware or software module; "first", The terms "second", "third" and the like are used merely to mean a name and do not denote any particular order.

11．．．用戶終端11. . . User terminal

12．．．基站12. . . Base station

400．．．時序提前裝置400. . . Timing advancement device

401．．．指示信令接收模組401. . . Indication signaling receiving module

402．．．時序提前啟動模組402. . . Timing advance start module

403．．．上行發送時間確定模組403. . . Uplink transmission time determination module

404．．．計時器404. . . Timer

405．．．超時判斷模組405. . . Timeout judgment module

406．．．隨機接入模組406. . . Random access module

407．．．下行參考分量載波確定模組407. . . Downlink reference component carrier determination module

500．．．時序提前裝置500. . . Timing advancement device

501．．．時序提前值確定模組501. . . Timing advancement determination module

502．．．指示信令發送模組502. . . Indication signaling module

503．．．下行參考分量載波確定模組503. . . Downlink reference component carrier determination module

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。Other features, objects, and advantages of the present invention will become apparent from the Detailed Description of Description

圖1為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；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;

圖2為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；2 is a flow chart of a method for timing advancement in a user terminal of a wireless network, in accordance with one embodiment of the present invention;

圖3為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；3 is a flow chart of a method for timing advancement in a base station of a wireless network in accordance with an embodiment of the present invention;

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；4 is a block diagram showing the structure of a timing advance apparatus in a user terminal of a wireless network according to an embodiment of the present invention;

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中的時序提前裝置的結構示意圖；FIG. 5 is a block diagram showing the structure of a timing advance apparatus in a base station of a wireless network according to an embodiment of the present invention; FIG.

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)。Wherein, the same or similar reference numerals denote the same or similar step features or devices (modules).

Claims (15)

一種在無線網路的用戶終端中用於時序提前的方法，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，該至少一個下行分量載波中包括一個下行主分量載波，該至少一個上行分量載波中的至少一個啟動的上行分量載波共用一個計時器以及時序提前值，該方法包括如下步驟：A.　透過該至少一個下行分量載波中的至少一個啟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；B.　根據該時序提前資訊來更新該時序提前值，並啟動/重啟該計時器，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值，以確定本用戶終端的上行發送時間。A method for timing advance in a user terminal of a wireless network, where at least one downlink component carrier and at least one uplink component carrier are configured in the wireless network, and the at least one downlink component carrier includes a downlink primary component carrier, where And transmitting, by the at least one uplink component carrier of the at least one uplink component carrier, a timer and a timing advance value, the method comprising the following steps: A. transmitting, by using at least one of the at least one downlink component carrier, a downlink component carrier First, receiving timing advance indication signaling, the timing advance indication signaling includes timing advance information; B. updating the timing advance value according to the timing advance information, and starting/restarting the timer, and based on the determined downlink reference The component carrier and the updated timing advance value are used to determine the uplink transmission time of the user terminal. 如申請專利範圍第1項所述的方法，還包括步驟：C.　如果該計時器超時前並未接收到該時序提前指示信令，則進行隨機接入以獲得該時序提前值。The method of claim 1, further comprising the step of: C. performing random access to obtain the timing advance value if the timing advance indication signaling is not received before the timer expires. 如申請專利範圍第1或2項所述的方法，還包括步驟：D.　如果該計時器並未超時，則新增的上行分量載波共用該計時器以用於該時序提前值的更新時序。The method of claim 1 or 2, further comprising the step of: D. if the timer does not time out, the newly added uplink component carrier shares the timer for the timing sequence of the timing advance value. . 如申請專利範圍第1或2項所述的方法，還包括步驟：E1.　如果該至少一個下行分量載波中的至少一個啟動的下行分量載波傳輸延遲之差小於預定值，則將該至少一個啟動的下行分量載波中的任一個下行分量載波確定為本用戶終端的下行參考分量載波。The method of claim 1 or 2, further comprising the step of: E1. if at least one of the at least one downlink component carrier initiates a difference in downlink component carrier transmission delay that is less than a predetermined value, the at least one is activated. Any one of the downlink component carriers is determined as a downlink reference component carrier of the user terminal. 如申請專利範圍第4項所述的方法，還包括步驟：E2.　如果該至少一個下行分量載波中的至少一個啟動的下行分量載波的傳輸延遲之差大於預定值，則將該下行主分量載波確定為該下行參考分量載波。The method of claim 4, further comprising the step of: E2. if the difference of transmission delays of the downlink component carriers activated by at least one of the at least one downlink component carrier is greater than a predetermined value, the downlink primary component carrier is used. Determined as the downlink reference component carrier. 如申請專利範圍第4項所述的方法，還包括步驟：如果該至少一個下行分量載波中的至少一個啟動的下行分量載波的傳輸延遲之差大於預定值，則將用以傳輸物理隨機接入回應訊息或者時序提前指示信令的下行分量載波確定為該下行參考分量載波。The method of claim 4, further comprising the step of: transmitting a physical random access if a difference in transmission delays of the downlink component carriers activated by at least one of the at least one downlink component carrier is greater than a predetermined value The downlink component carrier of the response message or the timing advance indication signaling is determined as the downlink reference component carrier. 如申請專利範圍第5項所述的方法，其中，步驟E2還包括：當該下行主分量載波的變更觸發重連接時，透過隨機接入以獲得該基站新確定的下行主分量載波以及新確定的該時序提前值並將該新確定的下行主分量載波確定為該下行參考分量載波。The method of claim 5, wherein the step E2 further comprises: when the change of the downlink primary component carrier triggers reconnection, obtaining a newly determined downlink primary component carrier by the random access and newly determining The timing advance value and the newly determined downlink primary component carrier are determined as the downlink reference component carrier. 一種在無線網路的基站中之用於時序提前的方法，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，該至少一個下行分量載波中包括一個下行主分量載波，該至少一個上行分量載波中的至少一個啟動的上行分量載波共用一個計時器以及時序提前值，該方法包括如下步驟：a.　基於所確定的下行參考分量載波，以確定一時序提前資訊，該時序提前資訊對應於該時序提前值；b.　透過該至少一個下行分量載波中的至少一個啟動的下行分量載波的其中之一，以發送時序提前指示信令，該時序提前指示信令中包括該時序提前資訊。A method for timing advance in a base station of a wireless network, where at least one downlink component carrier and at least one uplink component carrier are configured in the wireless network, and the at least one downlink component carrier includes a downlink primary component carrier, where The at least one uplink component carrier activated by the at least one uplink component carrier shares a timer and a timing advance value, and the method includes the following steps: a. determining a timing advance information based on the determined downlink reference component carrier, the timing advance The information corresponds to the timing advance value; b. transmitting one of the downlink component carriers activated by at least one of the at least one downlink component carrier to transmit timing advance indication signaling, where the timing advance indication signaling includes the timing advance News. 如申請專利範圍第8項所述的方法，還包括步驟：如果該至少一個下行分量載波中的至少一個啟動的下行分量載波的傳輸延遲之差小於預定值，則將該至少一個啟動的下行分量載波中的任一個下行分量載波確定為本基站的下行參考分量載波。The method of claim 8, further comprising the step of: if the difference of transmission delays of the downlink component carriers activated by at least one of the at least one downlink component carrier is less than a predetermined value, the at least one activated downlink component Any one of the downlink component carriers is determined to be the downlink reference component carrier of the base station. 如申請專利範圍第9項所述的方法，還包括步驟：如果該至少一個下行分量載波中的至少一個啟動的下行分量載波的傳輸延遲之差大於預定值，則將該下行主分量載波確定為該下行參考分量載波。The method of claim 9, further comprising the step of determining the downlink primary component carrier as if the difference in transmission delays of the downlink component carriers initiated by the at least one of the at least one downlink component carrier is greater than a predetermined value The downlink reference component carrier. 如申請專利範圍第9項所述的方法，還包括步驟：如果該至少一個下行分量載波中的至少一個啟動的下行分量載波的傳輸延遲之差大於預定值，則將本基站用以傳輸物理隨機接入回應訊息或者時序提前指示信令的下行分量載波確定為該下行參考分量載波。The method of claim 9, further comprising the step of: if the difference of transmission delays of the downlink component carriers activated by at least one of the at least one downlink component carrier is greater than a predetermined value, the base station is configured to transmit physical randomness The downlink component carrier of the access response message or the timing advance indication signaling is determined as the downlink reference component carrier. 如申請專利範圍第10項所述的方法，還包括步驟：當該下行主分量載波發生變更時，將變更後的下行主分量載波確定為該下行參考分量載波。The method of claim 10, further comprising the step of: determining the changed downlink primary component carrier as the downlink reference component carrier when the downlink primary component carrier is changed. 如申請專利範圍第11項所述的方法，還包括步驟：當該用以傳輸物理隨機接入回應訊息或者時序提前指示信令的下行分量載波發生變更時，將變更後的用以傳輸物理隨機接入回應訊息或者時序提前指示信令的下行分量載波確定為該下行參考分量載波。The method of claim 11, further comprising the step of: when the downlink component carrier used to transmit the physical random access response message or the timing advance indication signaling is changed, the changed physical transmission is used to transmit The downlink component carrier of the access response message or the timing advance indication signaling is determined as the downlink reference component carrier. 一種在無線網路的用戶終端中之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，該至少一個上行分量載波中的至少一個啟動的上行分量載波共用一個計時器以及時序提前值，該裝置包括：-　指示信令接收模組，用以透過該至少一個下行分量載波中的至少一個啟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；-　時序提前啟動模組，用以根據該時序提前指示信令來更新該時序提前值，並啟動/重啟該計時器；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該時序提前值，確定本用戶終端的上行發送時間。An apparatus 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 are configured in the wireless network, and at least one of the at least one uplink component carrier initiates an uplink component The carrier shares a timer and a timing advance value, and the apparatus includes: - an indication signaling receiving module, configured to receive a timing advance indication signal by using one of a downlink component carrier activated by at least one of the at least one downlink component carrier The timing advance indication signaling includes timing advance information; a timing advance start module, configured to update the timing advance value according to the timing advance indication signaling, and start/restart the timer; and - uplink sending time And a determining module, configured to determine an uplink sending time of the user terminal based on the determined downlink reference component carrier and the updated timing advance value. 一種在無線網路的基站中之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，該至少一個上行分量載波中的至少一個啟動的上行分量載波共用一個計時器以及時序提前值，該裝置包括：-　時序提前值確定模組，基於所確定的下行參考分量載波，以確定一時序提前資訊；-　指示信令發送模組，用以透過該至少一個下行分量載波中的至少一個啟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該時序提前資訊。An apparatus 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 are configured in the wireless network, and at least one of the at least one uplink component carrier initiates an uplink component carrier Sharing a timer and a timing advance value, the apparatus includes: - a timing advance value determining module, based on the determined downlink reference component carrier, to determine a timing advance information; - an indication signaling module to transmit the at least One of the downlink component carriers activated by at least one of the downlink component carriers transmits timing advance indication signaling; the timing advance indication signaling includes the timing advance information.
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