Abstract: Disclosed are a digital modulation method and apparatus.

Abstract: Disclosed are a digital modulation method and apparatus.

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for multiple access. The method includes: receiving, by a network device, a data packet, where the data packet includes identifier information about a terminal; querying, according to the identifier information about the terminal, a correspondence table between identifier information about a terminal and a broadcast channel, and determining a broadcast channel corresponding to the identifier information about the terminal, where the determined broadcast channel is a broadcast channel among a plurality of preset broadcast channels, and the terminal is any terminal in a terminal group corresponding to the determined broadcast channel; and sending, according to the identifier information about the terminal, through the determined broadcast channel, the data packet to the terminal.

Abstract: A method and system of channel negotiation between neighbor BSs are provided. The method includes: a first BS obtaining channel information of all second BSs which neighboring to the first BS in response to starting of the first BS; selecting a channel in the network as a first working channel of the first BS, and requesting all third BSs which are the second BSs occupying the first working channel to switch channel; and determining another channel for each of the third BSs excluding the first working channel as the target channel of the third BS, and switching the working channel of the third BS to the target channel, then occupying the first working channel. The method and system of channel negotiation between neighbor BSs adjust channels between neighbor BSs by negotiation automatically, and resource distribution for the whole network is optimized.

Abstract: Method, and system for collecting and reporting interference source information, the method includes: each terminal receives broadcast message containing NBS identification information sent by NBS when initializing, terminals which can demodulate and check accurately contain the broadcast message and receiving time information in interfered reporting message and send the interfered reporting message to the operating base station OBS, and terminals which can't demodulate and check in error contain receiving time information in reporting message; OBS records the receiving time information reported by each terminal, and records the NBS identification information contained in the broadcast message reported by terminals which check accurately as the interference source of the terminals which report the broadcast message; then, searches and records the interference sources for the other terminals from the recorded interference sources according to the relationship between the receiving time information.

Abstract: A method and a network apparatus for adjusting communication resources in a community are disclosed. When the topological structure of the community changes, e.g., when new base station joins or exits, and when the community combines or splits, each base station re-allocates the communication resources by using a uniform algorithm, or the server or one base station in the community re-allocates the communication resources uniformly, then the base stations in the community are adjusted to the their own available resource at the same time based on the re-allocation results. The communication resources includes not only the frequency spectrum, but also those are exclusively occupied by a base station required by its normal operation, e.g., time slot, CDMA code word, sub-channel etc. With the present disclosure, the automatic optimum allocation and adjustment of the communication resources in a community could be realized.

Abstract: A method and apparatus for configuring service paths in a relay system, and a method for mobile station handover are provided. In the present invention, when it is determined that a mobile station is to be switched between a base station and a relay station attached thereto, or between different relay stations attached to the base station, the service paths are configured respectively between a handover source station and a mobile station and between a handover destination station and the mobile station and same data is transmitted by the base station. Therefore, this method facilitates the mobile station to ensure service continuity in the process of handover.

Abstract: A proxy server having proxy server address information is provided to serve as an agent for at least one base station to perform secure communication. A method for realizing proxy and secure communication system are also provided to prevent the change of network address allocation from interfering main services of a base station. In addition, a secure communication method between license-exempt devices is provided to ensure the license-exempt devices not to be attacked and to remain at normal work. In the present invention, the network address of a base station is only restricted in a trusted range instead of being broadcasted in a public network, thus reducing the probability of attack to the base station in a wired network.

Abstract: A method and system of channel negotiation between neighbor BSs are provided. The method includes: a first BS obtaining channel information of all second BSs which neighboring to the first BS in response to starting of the first BS; selecting a channel in the network as a first working channel of the first BS, and requesting all third BSs which are the second BSs occupying the first working channel to switch channel; and determining another channel for each of the third BSs excluding the first working channel as the target channel of the third BS, and switching the working channel of the third BS to the target channel, then occupying the first working channel. The method and system of channel negotiation between neighbor BSs adjust channels between neighbor BSs by negotiation automatically, and resource distribution for the whole network is optimized.

Abstract: A method and a network apparatus for adjusting communication resources in a community are disclosed. When the topological structure of the community changes, e.g., when new base station joins or exits, and when the community combines or splits, each base station re-allocates the communication resources by using a uniform algorithm, or the server or one base station in the community re-allocates the communication resources uniformly, then the base stations in the community are adjusted to the their own available resource at the same time based on the re-allocation results. The communication resources includes not only the frequency spectrum, but also those are exclusively occupied by a base station required by its normal operation, e.g., time slot, CDMA code word, sub-channel etc. With the present disclosure, the automatic optimum allocation and adjustment of the communication resources in a community could be realized.

Abstract: Method, and system for collecting and reporting interference source information, the method includes: each terminal receives broadcast message containing NBS identification information sent by NBS when initializing, terminals which can demodulate and check accurately contain the broadcast message and receiving time information in interfered reporting message and send the interfered reporting message to the operating base station OBS, and terminals which can't demodulate and check in error contain receiving time information in reporting message; OBS records the receiving time information reported by each terminal, and records the NBS identification information contained in the broadcast message reported by terminals which check accurately as the interference source of the terminals which report the broadcast message; then, searches and records the interference sources for the other terminals from the recorded interference sources according to the relationship between the receiving time information.