End Device and Buffer Division Method
A terminal device and buffer technology, which is applied to the distribution between users/terminals, the separation device of the transmission path, and the signaling distribution, etc., which can solve the problems of UL/DL traffic time fluctuations and other problems
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Embodiment approach 1
[0164] Figure 14 It is a main structural diagram of the terminal 200 of this embodiment. Terminal 200 communicates with base station 100 using a plurality of component carriers. Also, for each component frequency band set for the terminal 200, a configuration pattern (UL-DL Configuration) of subframes constituting one frame is set, and the configuration pattern includes downlink communication subframes (DL subframes) used for downlink communication. And an uplink communication subframe (UL subframe) for uplink communication. In the terminal 200, the decoding section 210 stores the downlink data respectively transmitted in a plurality of component frequency bands in a retransmission buffer (soft buffer), and decodes the downlink data, and the response signal generating section 212 uses the downlink data The error detection result generates a response signal, and the wireless transmission unit 222 transmits the response signal to the first downlink data received through the f...
Embodiment approach 2
[0257] In this embodiment, a case will be described in which the maximum number of DL HARQ processes defined by the UL-DL Configuration that the SCell refers to for DL HARQ timing is used as the reference maximum number of DL HARQ processes for the SCell.
[0258] In this embodiment, in order to determine the reference maximum number of DL HARQ processes of the SCell, the base station 100 and the terminal 200 keep Figure 22 The determination table referring to the UL-DL Configuration of the SCell shown, and Figure 22 The table for determining the maximum number of DL HARQ processes for each UL-DL Configuration is shown.
[0259] Specifically, terminal 200 refers to Figure 22 The combination of the shown reference UL-DL Configuration determination table and the UL-DL Configurations respectively set for the PCell and the SCell determines the reference UL-DL Configuration of the SCell. Next, the terminal 200 refers to Figure 22 Determination table for the maximum number ...
Embodiment approach 3
[0266] In Embodiment 1, the case where cross-carrier scheduling (Cross-carrier scheduling) is not set (sometimes referred to as the case where CIF (Carrier Indicator Field, carrier indication field) is not set, or when self-scheduling (Self scheduling) is set) is described. Case. That is, in Embodiment 1, a case is described in which the DL assignment (resource assignment information) to the PDSCH of the PCell is notified through the PDCCH of the PCell, and the DL assignment to the PDSCH of the SCell is notified through the PDCCH of the SCell.
[0267] On the other hand, in this embodiment, a case where cross-carrier scheduling configuration is taken into account will be described.
[0268]The so-called cross-carrier scheduling refers to a technology that uses the PDCCH of a certain unit frequency band to schedule the resource allocation of other unit frequency bands. For example, in case the DL assignment (resource assignment information) of the PDSCH of the SCell is greatly...
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