摘要:
Disclosed is a method for transmitting integrated packet data by a relay station (RS) in a multi-hop relay communication system, including: integrating a plurality of packet data received from mobile stations (MSs) and determining a data integration scheme for transmitting the integrated data to base station (BS); receiving packet data from MSs, classifying the received packet data into one or more integration packet classes according to the determined data integration scheme, and storing the same; determining QoS (Quality of Service) requirements and a MCS (Modulation and Coding Scheme) level of the stored integration packet classes; calculating required resource according to the determined MCS level and requesting an allocation of the resource from the BS; receiving an approval for resource allocation from the BS, and modulating and coding the integrated packet class, mapping the same to the resource to configure an integrated packet; and transmitting the configured integrated packet to the BS.
摘要:
A communication method using statistical multiplexing in which pre-determined hopping patterns are respectively allocated to two or more users who communicate with a base station using orthogonal resources, the communication method includes: receiving a transmission signal transmitted using the orthogonal resources; and acquiring data from the received transmission signal, wherein each of the users belongs to one of two or more groups and the pre-determined hopping patterns are allocated to prevent collision between the users belonging to the same group.
摘要:
Provided are examples of methods of a vehicular moving relay in a communication system including the vehicular moving relay, a moving terminal, and a macro base station. Also provided is an example of a terminal. The vehicular moving relay may repeatedly transmit data to a vehicular moving terminal without requesting a handover from a macro base station to the vehicular moving relay, using a unique code that is allocated to the vehicular moving terminal from the macro base station.
摘要:
A method for reducing inter-cell interference (ICI) in a mobile communication system controls transmission signal power of an uplink signal from a terminal based on signal power measurement for a signal received from a base station of a neighboring cell. A terminal receives a signal from a base station of a neighboring cell via a wireless channel, measures a channel response against a threshold value across an applicable frequency band by using the received signal, determines a transmission signal power for each frequency band used for data transmission based on the measured channel response, and transmits data to a home cell base station according to the transmission signal power for each frequency band. The terminal may measure a channel response based on signals received from multiple base stations in multiple neighboring cells, and may also evaluate signal power of a signal transmitted from the home cell.
摘要:
A method for controlling inter-cell interference (ICI) in a mobile communication system by transmitting uplink control information from a base station in a home cell to a terminal of a neighboring cell based on ICI amount information measured at the base station. The ICI control method includes receiving an uplink signal at a base station and extracting inter-cell interference amount information from the uplink signal, generating uplink control information based on the extracted inter-cell interference amount information, and transmitting the uplink control information to a terminal in a neighboring cell. The terminal schedules an uplink resource including selecting frequency bands for an uplink signal by referring to the uplink control information.
摘要:
A communication system and method for single-point transmission and reception and coordinated multi-point transmission and reception are provided. The system and method include determining information associated with a channel status of a target terminal. The system and method also include selecting, with respect to the target terminal, one of single-point transmission and reception and coordinated multi-point transmission and reception based on the information associated with the channel status of the target terminal.
摘要:
In a Multiple-Input Multiple-Output (MIMO) wireless local area network (WLAN) system, a method is provided for selecting at least one antenna from a plurality of antennas and transmitting a data frame from a station to an access point via the selected antenna or antennas. A method for transmitting data from a plurality of stations to an access point in the MIMO WLAN system includes detecting a channel status of a channel from the access point to each transmitting antenna of the station, selecting at least one transmitting antenna from among the station's transmitting antennas based on the detected channel status, and transmitting a data frame from the station to the access point via the selected transmitting antenna or antennas.
摘要:
A Multiple-Input Multiple-Output data transmission system includes access stations and an access point having multiple receive antennas. An access point has a minimum contention window size decision unit to determine a minimum contention window size based on the number of receive antennas and a number of access stations, a broadcasting unit to broadcast the determined minimum contention window size to the access stations, and a receiver to receive data from the access stations in a contention window that is calculated based on the minimum contention window size. An access station receives the minimum contention window size from the access point, determines a first contention window size based on the minimum contention window size, and transmits data to the access point within the first contention window. If the transmission fails, the access station determines a second contention window size and retransmits the data in the second contention window.
摘要:
A resource allocation method in orthogonal frequency division multiple access wireless systems includes: setting, for each of terminals, data transmission factors including a resource location selection scheme; and determining, for each frame, locations of resources to be allocated to the terminals in a resource allocation order by using the resource location selection schemes Determining the locations of the resources includes: setting the resource allocation order for the terminals according to priorities of the terminals; selecting resources to be allocated to a terminal by using the resource location selection scheme for the terminal; determining whether all or some of the selected resources have been already allocated to other terminals; and allocating the selected resources to the terminal, if it is determined that the selected resources have not been already allocated to other terminals.
摘要:
There is disclosed an integrated base station (BS) communicatively combined with two or more simplified radio access points (APs). The integrated BS is configured to receive a signal from a backbone/backhaul network and transmits the received signal to the simplified radio APs, route a signal to at least one of the two or more simplified radio APs, and communicate with the two or more simplified radio APs through wireline communication.