Abstract:
The present disclosure provides a signal processing apparatus and a signal processing method, the signal processing apparatus includes: a preprocessing unit configured to generate a joint matrix according to channel matrixes of subcarriers, and perform a parallel-to-serial conversion on QAM signals of the subcarriers to obtain a serial QAM signal; a judgment unit configured to determine a constraint relationship of a constellation point in each element according to a determining result obtained by determining that whether the constellation point is to be extended in a constellation diagram; a processing unit configured to establish a convex optimization model according to the joint matrix, the serial QAM signal and the determining result, and determine a joint time-domain signal of antenna channels according to the constraint relationship of the constellation point and the convex optimization model; and a conversion unit configured to perform a serial-to-parallel conversion on the joint time-domain signal.
Abstract:
A load balancing method and system are provided in the embodiments of the present document. The method includes: collecting load information of a load balancing object, and generating a load balancing group table according to the load information; generating a load balancing group routing table according to information of the load balancing group table; and forwarding a data packet according to the load balancing group routing table.
Abstract:
Provided are a data flow distribution method and a controller. The method includes: a software defined network (SDN) controller acquiring data flow description information of a data flow; and the SDN controller deciding, according to the data flow description information, whether the data flow needs distribution, and when the data flow needs the distribution, delivering a distribution rule flow table to a distribution gateway. By using the technical solutions, application/service data flow based distribution is implemented. Compared with the related art that distribution is implemented based on a PDN connection and based on a bearer, the technical solutions implement finer-granularity distribution, and improve experience of users and competition of operators.
Abstract:
Disclosed are a method for processing wireless access, a forwarding device and a network controller. The method includes: the forwarding device establishing a wireless access point table for local access; the forwarding device maintaining the wireless access point table for local access according to whether a wireless access point in the wireless access point table for local access exists and a state of the wireless access point in the wireless access point table for local access. The embodiments of the present document have achieved that the data of a corresponding relationship between APs and home forwarding devices are kept consistently under a pure WLAN network scenario or a multi-network integrated scenario in which the WLAN network accesses a mobile core network.
Abstract:
A communication system and an access authentication method and system based on such a communication system are described. In the system, a context generation function entity is arranged to generate a user context and store the generated user context in a context database matched with the context generation function entity, and a service access control function entity is arranged to acquire the user context from the context database and authenticate a terminal initiating an access request by adopting the user context. According to systems and methods described, effects of a simple access authentication manner and shorter access delay are achieved.
Abstract:
A service chain management method, system and device are disclosed. The system comprises a service arrangement device for generating a service chain mapping table and sending the service chain mapping table to a policy control device, wherein the service chain mapping table comprises service chain identifications and corresponding service chain condition features; the policy control device for searching for a corresponding service chain identification in the service chain mapping table according to the service chain condition features of user equipment and generating a policy rule table and/or a service detection rule table of the user equipment, wherein the policy rule table and/or the service detection rule table comprises service chain identification operation information; and a policy execution device for receiving a message and executing a policy rule and/or a service detection rule for the received message according to the policy rule table and/or the service detection rule table.
Abstract:
Disclosed are a service processing method, a network controller and a forwarding device, wherein the method includes: after learning that a terminal leaves a network, a network controller acquiring information of a home forwarding device when the terminal leaves the network; the network controller determining a caching policy flow table, and sending the caching policy flow table to the home forwarding device. With the embodiment of the present document, in an IP network architecture in which control and forwarding are separated, after a WLAN terminal switches to a new radio access device, the service continuity can be maintained.