Zte Corporation

Zte Corpration

Jianli Liu

Xiaojun Cui

Huazhang Chen

Jinyuan An

Hengqi Liu

Fan Ouyang

Min Zeng

Bin Duan

Fengbo Wu

Changsheng Chen

Bian Wu

A multicast message replication method and apparatus are provided. The method includes: stepstoring a received message in a message cache module, and an inter-port replication module acquiring a cache address of the message, inter-port replication information of the message, and inner-port replication information of the message, replicating the cache address according to the inter-port replication information, and transmitting the replicated cache address and the corresponding inner-port replication information to a port queue module to be stored; stepa port scheduling module scheduling the cache address of the port queue module, and under the scheduling by the port scheduling module, the port queue module outputting a cache address for which message replication needs to be performed according to the stored corresponding inner-port replication information; stepthe message cache module reading a corresponding message according to the cache address output by the port queue module and outputting.

Multicast message replication method and device

Disclosed is a Doherty power amplifier apparatus, including: a drive amplifier circuit, a power splitter circuit and a power combiner circuit, wherein the power splittercircuit is connected to the drive amplifier circuit, the apparatus further comprising: a carrier amplifier circuit and a peak amplifier circuit connected in parallel between the power splitter circuit and the power combiner circuit, wherein the carrier amplifier circuit comprises one or more parallel carrier amplification branches, wherein each carrier amplification branch comprises a multi-stage carrier amplifier apparatus, the multi-stage carrier amplifier apparatus is used for achieving multi-stage carrier amplification; and the peak amplifier circuit comprises one or more parallel peak amplification branches, wherein each peak amplification branch comprises a multi-stage peak amplifier apparatus, the multi-stage peak amplifier apparatus is used for achieving multi-stage peak amplification.

Doherty power amplifier apparatus

A method and device for processing data cells are disclosed. The method includes: configuring a unicast routing table which includes a corresponding relation between unicast destination addresses and port trunking (Trunks), and a multicast routing table which includes a corresponding relation between multicast group addresses and Trunks; receiving data cells; determining a corresponding Trunk according to types of the data cells, if the data cell is a unicast cell, extracting a destination address of the unicast cell, querying the unicast routing table, and obtaining a Trunk corresponding to the unicast cell; and if the data cell is a multicast cell, extracting a multicast group address of the multicast cell, querying the multicast routing table, and obtaining one or more Trunks corresponding to the multicast cell; and selecting an output link from the determined Trunks according to a preset load balancing policy, and sending data cells through the selected output link.

Method and device for processing data cell

The present invention relates to a power amplifier apparatus and power amplifier circuit, and the power amplifier circuit uses the Doherty circuit structure, and uses a high voltage heterojunction bipolor transistor (HVHBT) power amplifier to achieve a Carrier amplifier of the Doherty circuit structure, and uses lateral double-diffused metal oxide semiconductor (LDMOS) to achieve a Peak amplifier. The power amplifier apparatus and power amplifier circuit in the present invention improves the efficiency of the power amplifier.

Power amplifier device and power amplifier circuit thereof

The present invention discloses a Doherty power amplifier and an implementation method thereof. A peak amplifying circuit of the Doherty power amplifier comprises a radio frequency switching circuit configured to control turn-on of the peak amplifying circuit; wherein a last stage carrier amplifier of a carrier amplifying circuit of the power amplifier uses a HVHBT device, and a last stage peak amplifier of the peak amplifying circuit of the power amplifier uses a GaN device. The present invention avoids the shortcoming when the peak branches in the Doherty power amplifier are turned on ahead of time, decreases power consumption of the peak amplifier and improves the batch efficiency of the whole Doherty power amplifier.

Doherty power amplifier and implementation method thereof

The present invention relates to a power amplifier apparatus and a power amplifier circuit thereof, the power amplifier circuit uses Doherty circuit structure, and it uses a high voltage heterojunction bipolor transistor (HVHBT) power amplifier to achieve a Carrier amplifier with the Doherty circuit structure, and uses a high electron mobility transistor (HEMT) power amplifier to achieve a Peak amplifier with the Doherty circuit structure. The power amplifier apparatus and a power amplifier circuit thereof in the present invention improves the efficiency of the power amplifier.

Power amplifier apparatus and power amplifier circuit

The present invention discloses a Doherty power amplifier and a method for implementing the Doherty power amplifier. The Doherty power amplifier includes a peak amplifying branch and a carrier amplifying branch, wherein, the peak amplifying branch includes a radio frequency switch, and the radio frequency switch is configured to control on/off of a last stage peak power amplifier in the peak amplifying branch; wherein, a high voltage heterojunction bipolar transistor (HVHBT) device is adopted for a last stage carrier power amplifier of the carrier amplifying branch, and a laterally diffused metal oxide semiconductor (LDMOS) device is adopted for the last stage peak power amplifier of the peak amplifying branch of the power amplifier. By the present invention, it avoids that the peak power consumption is increased when the peak power amplifier is on ahead of time and enhances the efficiency of the whole power amplifier.

A control method and apparatus of a peak amplifier of a Doherty power amplifier are disclosed, wherein, the control apparatus includes a Radio Frequency (RF) switching circuit in a peak amplification branch of the Doherty power amplifier, which is used to control the turn-on and turn-off of the peak amplifier in the peak amplification branch. The method and apparatus avoid a disadvantage that the peak branch in the Doherty power amplifier is turned on ahead of time, thus reducing the power consumption of the peak power amplifier, and enhancing the mass efficiency of the whole power amplifier; and largely reducing the product expense and production expense of the power amplifier compared to the scheme of some manufacturers improving on-time of the peak power amplifier using complex digital circuits.

Growing community of inventors

Shenzhen, China

Jianli Liu