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Apparatus and method for reception and transmission of control channels

專利號(hào)
US11889317B2
公開日期
2024-01-30
申請(qǐng)人
Motorola Mobility LLC(US IL Chicago)
發(fā)明人
Ravikiran Nory; Vijay Nangia; Murali Narasimha; Ajit Nimbalker
IPC分類
H04W16/14; H04W72/0446; H04W72/23; H04L5/00; H04W74/08; H04W72/0453; H04L27/26; H04L5/14
技術(shù)領(lǐng)域
subframe,ue,enb,truncation,symbols,subframes,unlicensed,lbt,truncated,in
地域: IL IL Chicago

摘要

A base station can operate a first serving cell on a licensed carrier frequency and a second serving cell on an unlicensed carrier frequency. The base station can perform a listen before talk (LBT) on the unlicensed carrier frequency for a first time duration. The base station can determine that the unlicensed carrier frequency is free. The base station can transmit an activation command on the first serving cell for receipt by a UE, the activation command being configured to activate the UE to receive transmissions from the base station on the second serving cell. The base station can transmit after determining that the unlicensed carrier frequency is free, a reserve transmission on the unlicensed carrier frequency at least until the base station begins transmission of the activation command on the first serving cell.

說明書

The memory 220 may include volatile and nonvolatile data storage, including one or more electrical, magnetic or optical memories such as a random access memory (RAM), cache, hard drive, or other memory device. The memory may have a cache to speed access to specific data. The memory 220 may also be connected to a compact disc-read only memory (CD-ROM), digital video disc-read only memory (DVD-ROM), DVD read write input, tape drive, solid state drive or other removable memory device that allows media content to be directly uploaded into the system. Data may be stored in the memory 220 or in a separate database (not specifically shown). The database interface 230 may be used by the controller/processor 210 to access the database. The database may contain any formatting data to connect the UE 106 to the network 102. The transceiver 240 may create a data connection with the UE 106. The transceiver 240 may configure a Physical Downlink Control Channel (PDCCH) and a Physical Uplink Control Channel (PUCCH) between the base station 104 and the UE 106.

The I/O device interface 250 may be connected to one or more input devices that may include a keyboard, mouse, pen-operated touch screen or monitor, voice-recognition device, or any other device that accepts input. The I/O device interface 250 may also be connected to one or more output devices, such as a monitor, printer, disk drive, speakers, or any other device provided to output data. The I/O device interface 250 may receive a data task or connection criteria from a network administrator.

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