摘要:
Each base station performs virtual scheduling that does not take cell association into account for each slot and actual scheduling that takes cell association into account to calculate difference in average transmission rates for each user terminal and stores them in a table. The difference in the average transmission rates for each user terminal is compared with a difference in average transmission rates for each user terminal received from a neighboring base station to determine a handoff decision for each user terminal.
摘要:
The present invention relates to a method in which an upper layer entity allocates resources to a plurality of access points (APs) in a wireless access system, including the plurality of APs and the upper layer entity for managing the plurality of APs, the method comprising the step of: sensing a change in minimum guaranteed resource amount allocated to each of the APs; acquiring, from each of the APs, AP-level topology information according to a degree of interference with adjacent APs and AP weight information given to each AP by a service provider; determining a minimum guaranteed resource amount for each of the APs based on the acquired AP-level topology information and AP weight information; and transmitting the determined minimum guaranteed resource amount to each of the APs.
摘要:
Specifically, according to one embodiment of the present invention, a method for searching for an access point is provided. The method for searching may comprises the steps of: a terminal measuring the position thereof; checking an access point located near the measured position of the terminal; determining whether or not the distance between the terminal and the access point is greater than the radius range searchable by the terminal; and searching for the access point when the distance between the terminal and the access point is less than the radius range.
摘要:
A method of performing scheduling and a method of controlling call admission in a communication system are disclosed. A method of controlling call admission a new user equipment which enters a network in a communication system includes performing scheduling by giving priority lower than that of a user equipment which is previously receiving a service to the new user equipment, and determining whether to admit call of the new user equipment depending a result of scheduling for a certain time period.
摘要:
A method for controlling data packet traffic flow over a bus interconnecting two or more nodes in a data communication system, each node having a unique address associated therewith and having a respective buffer memory for temporarily holding incoming data communicated thereto, each node further being capable of multicast sending of data packets over the bus to one or more nodes having respective addresses logically associated a unique address, the method comprising: checking current available buffer memory occupancy upon receipt of a data packet, the node being capable of outputting for transmission on the bus a first flow control indicator message when the data temporarily stored in the buffer memory is above a first buffer occupancy threshold associated with data of a first priority type, and a second flow control indicator message when the data temporarily stored in the buffer memory is above a second buffer occupancy threshold, the second buffer occupancy threshold being greater than the first occupancy threshold; implementing logical flow control to prevent transmission of data packet traffic of the first priority from one or more sending nodes to two or more receive nodes logically associated with the outputting node at the priority in response to receipt of the first flow control indicator message; and, implementing physical logical flow control to prevent transmission of data packet at any data traffic priority in response to receipt of the second flow control indicator message.
摘要:
The present invention relates to a method for a base station to manage resources in order to perform beamforming in a wireless access system, the method being characterized by comprising the steps of: receiving cluster information from a cluster head; and determining, on the basis of the received cluster information, terminals to be scheduled in a cluster including the cluster head, wherein the cluster information comprises location and channel gain information for the terminals belonging to the cluster including the cluster head.
摘要:
An apparatus and method for supporting Peer to Peer (P2P) communication in a broadband wireless communication system are provided. A P2P zone within a frame used for the P2P communication includes at least one channel, each channel includes a broadcasting zone and a contention zone, and a P2P-mode transmit Mobile Station (MS) transmits a reference signal through a broadcasting zone of a channel to which itself belongs. The method MS includes determining an interference sum for each channel within the P2P zone, comparing the determined interference sums with each other, selecting a channel having the least interference sum, and transmitting information regarding the selected channel to a Base Station (BS).
摘要:
In a switch fabric environment, which includes a buffer, packet data of different class-types from different sources is received, stored in the buffer, processed and outputted to its intended destination. As the buffer fills up, transmission from some of the data sources is stopped to avoid dropping of packets. To avoid packet loss, when the occupancy of the buffer reaches a first threshold value, further transmission of a first-class type of data is precluded from the particular source of that data then being received, while transmission from other sources of that same first-class type of data is not precluded from these other data sources until first-class type of data from such other sources is also received. Further, data of a second-class type is not precluded from being transmitted as long as the amount of data stored in the buffer remains below a second threshold, which is greater than the first threshold. When the occupancy of the buffer reaches that second threshold, further transmissions from the particular source of that second-class type of data then being received is also precluded. As data from other sources of that second-class type of data is received, further transmissions from those other sources are also precluded. A third-class type of data, however, is not precluded from transmission as long as the amount of data remains below a third threshold value, which is greater than the second threshold value. In order to avoid packet loss, when a packet from any source is received, it is stored regardless of whether transmission from the source of that packet has been precluded. Advantageously, a MAX/MIN distribution of the available bandwidth can be probabilistically achieved without packet loss.
摘要:
The present invention relates to a method in which a first station receives position information using a second station positioned in the vicinity of the first station. The method includes the steps of: receiving a station identifier (STID) and at least one fake identifier (ID) from a base station; obtaining a fake ID of the second station; requesting position information on the second station from the base station using the fake ID of the obtained second station; and receiving the position information on the second station of the base station, wherein the fake ID is an identifier used for position measurement and is mapped to the STID.
摘要:
Specifically, according to one embodiment of the present invention, a method for searching for an access point is provided. The method for searching may comprises the steps of: a terminal measuring the position thereof; checking an access point located near the measured position of the terminal; determining whether or not the distance between the terminal and the access point is greater than the radius range searchable by the terminal; and searching for the access point when the distance between the terminal and the access point is less than the radius range.