Huawei Technologies Co., Limited

Suping Zhai

Liang Li

Feng Zhang

Yuchun Lu

Jun Gong

Mingming Zhu

Hongfei Chen

Xiaozhong Wang

Dajun Zang

Rui Hu

Hexuan Zhao

An encoding method, an encoder, and a decoder for dynamic power consumption control are provided. The encoder includes a control unit, an initial encoding unit, and L incremental encoding units. The control unit is configured to enable only the initial encoding unit in an RS (N, K) operating mode to perform encoding or enable only the initial encoding unit and first j incremental encoding units in the L incremental encoding units in an RS (N, K) operating mode to perform encoding. The initial encoding unit is configured to perform RS FEC encoding on m(x) to obtain a quotient D(x) and a remainder R(x) of xm(x) relative to g(x). An (h+1)incremental encoding unit is configured to obtain, according to a quotient D(x) and a remainder R(x), a quotient D(x) and a remainder R(x) of xm(x) relative to g(x).

Encoding method, encoder, and decoder for dynamic power consumption control

The present embodiments provide a method and an apparatus for determining a frame boundary of an FEC frame, and a decoding system. The method includes receiving data, where the data includes N+P consecutive symbols, N consecutive symbols constitute a first data block, and N consecutive symbols constitute a second data block; obtaining s parameter values corresponding to the first data block. The method also includes determining a first iterative item and a second iterative item and determining, according to the s parameter values corresponding to the first data block, s parameter values corresponding to the second data block. Additionally, the method includes determining, according to the s parameter values corresponding to the second data block, whether the second symbol is a frame boundary of an FEC frame.

Method and apparatus for determining forward error correction frame boundary, and decoding system

A method for an Ethernet to bear ATM cells includes: mapping the ATM virtual connection information in the first ATM cell received from the ATM network to an Interworking Identifier (IW ID); combining the IW ID and the cell payload of the first ATM cell into an Ethernet frame; and transmitting the Ethernet frame in an Ethernet network. An apparatus for an Ethernet to bear ATM cells is also disclosed. The embodiments of the present invention implement network interworking on the data link layer (layer 2) and enable an ATM network to perform ATM emulation in a metropolitan area Ethernet (MEN) independently of the upper-layer protocol, thus facilitating the user.

Method and apparatus for Ethernet to bear ATM cells

A method for carrying Frame Relay over Ethernet comprises: receiving a Frame Relay frame, and removing header and tail flag sequences from the Frame Relay frame; determining a control word and performing payload encapsulation; mapping a DLCI to a VCE ID and encapsulating the VCE ID; encapsulating an Ethernet frame header, generating an Ethernet FCS and transmitting the Ethernet frame to Ethernet; and, receiving the Ethernet frame, checking the Ethernet frame and removing the Ethernet frame header; removing the VCE ID, and mapping the VCE ID to the DLCI; obtaining the control word, obtaining Frame Relay information from the payload and reconstructing the Frame Relay frame according to the control word; adding flag sequences to the Frame Relay frame, and transmitting the Frame Relay frame to a Frame Relay network. According to the invention, Frame Relay carried over Ethernet may be implemented without relying on the types of the upper layer protocols.

Method for carrying frame relay over Ethernet

A method for implementing group protection in a Multiple Protocol Label Switching (MPLS) network disclosed in the present invention includes: monitoring a Label Switched Path (LSP) in an MPLS network; and performing a group protection switching when a failure is determined on an LSP of the working LSP group according to a monitoring result. In the present invention, a state of each monitored LSP of the working LSP group and the protection LSP group is monitored without merging LSPs of each LSP group. Moreover, as long a Signal Fail (SF) or a Signal Degrade (SD) is detected on an LSP of the working LSP group and no SF/SD is detected in the protection LSP group, an LSP group protection switching will be triggered, thereby easy the implementation of the LSP group protection.

Method and devices for implementing group protection in MPLS network

A method of failure detection on an Internet Protocol (IP) forwarding plane, which includes: IP nodes of the two ends obtain Bidirectional Forwarding Detection (BFD) identifier information which is used in the BFD, moreover start a BFD session, encapsulate and transport a BFD packet between the IP nodes running the BFD session and implement the failure detection according to the BFD packet transported between the IP nodes. The method of this invention realizes the failure detection via starting the BFD session and via transporting the BFD packet between the inter-domain IP nodes or the intra-domain IP nodes.

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Shenzhen, China

Suping Zhai