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Method of handling downlink-only carrier and related communication device

專利號
US10149289B2
公開日期
2018-12-04
申請人
HTC Corporation(TW Taoyuan)
發(fā)明人
Chih-Hsiang Wu
IPC分類
H04L12/18; H04W72/04; H04J3/00
技術領域
dl,carrier,tdd,config,ul,system,network,mbms,only,lte
地域: Taoyuan

摘要

A method of handling a downlink (DL)-only carrier for a communication device comprises receiving system information on the DL-only carrier transmitted by a network, wherein the system information does not comprise at least one information element for an uplink (UL) transmission and the at least one information element is mandatory to be present in the system information according to a third Generation Partnership Project (3GPP) standard, and determining that the system information is valid.

說明書

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

FIG. 5 is a flowchart of a process 50 according to an example of the present invention. The process 50 may be utilized in the network for handling a DL-only carrier (e.g., FDD DL carrier). The process 50 may be compiled into the program code 214 and includes the following steps:

Step 500: Start.

Step 502: Transmit system information on the DL-only carrier to a communication device, wherein the system information does not comprise at least one information element for a UL transmission.

Step 504: End.

According to the process 50, the network may transmit system information on the DL-only carrier to a communication device, wherein the system information may not include at least one information element for a UL transmission and the at least one information element is mandatory to be present in the system information according to a 3GPP standard. The network may realize the process 50, when communicating with a communication device realizing the process 40. For example, the system information may include (or simply be) SIB2 which further includes an information element prach-Config which is mandatory to be present as defined in the LTE/LTE-A system. That is, the system information may be defined to include the information element. In one example, the DL-only carrier may be configured for a MBMS service. That is, the DL-only carrier may be used by the network for providing (e.g., broadcasting) the MBMS service to the communication device. In another example, the DL-only carrier may be configured for a DL transmission to the communication device in a CA. In one example, the system information may include a new TDD-Config which indicates a UL/DL configuration comprising only DL subframes.

權利要求

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