摘要:
Provided is an apparatus and method for constructing a neighbor node list in a cellular communication system. In the method, an MS acquires neighbor nodes through a scanning operation in an initial network entry procedure, inserts information about the acquired neighbor nodes into a predetermined message, and transmits the predetermined message to a serving station. The serving station updates a periodically-broadcast neighbor list using the information about the neighbor nodes. The MS does not discard but provides the information about the acquired neighbor nodes to the serving station (BS or RS), thereby making it easy for the serving station to acquire information about neighbor BSs and RSs.
摘要:
An apparatus and method of processing handover of a mobile relay station (MRS) in a cellular communication system using a multihop relay scheme is provided. The handover processing method includes transmitting, by the MRS, a handover request message containing child node information to a serving BS when handover is required; making, by the serving BS, an adjacent node list by collecting handover-related information from adjacent nodes to which the MRS is able to be handed over when the handover request message is received; transmitting, by the serving BS, a handover response message containing the adjacent node list to the MRS; and determining, by the MRS, a handover target node based on information contained in the handover response message and transmitting a handover indication message containing the target node to the serving BS. By suggesting the handover method of the MRS in the multihop relay system, it is possible to provide uninterrupted communication to the MRS and its child node in the service area of the MRS.
摘要:
A cleaning solution for a cured anti-reflective layer (AFC layer) component and a method of cleaning an anti-reflective layer component by using the same, wherein the cleaning solution comprises about 5–30% by weight of ammonium hydroxide, about 23–70% by weight of an organic solvent and about 10–50% by weight of water. When an organic material is spattered to adjacent equipment during implementing a coating process onto a wafer, the equipment is detached and then is dipped into the cleaning solution. Thereafter, the equipment is rinsed and dried. Cured and non-cured organic materials are advantageously removed. Cured organic materials left for a period of time, particularly anti-reflective layer components are advantageously removed.
摘要:
A framing method of fixing a training signal and a control channel for multi-link (direct link and relay link) synchronization in a multi-hop relay cellular network, and a transmitting/receiving apparatus for supporting the framing method. A base station (BS) transmits BS downlink (DL) subframe sequentially including a preamble, control information, and a DL burst to a relay station (RS) or a first mobile station (MS) connected to the BS by direct link. The RS transmits an RS DL subframe sequentially including a DL burst, a postamble, and control information to a second MS connected to the BS by relay link. Therefore, difficulties of initial synchronization, handoff, and cell search can be removed from MSs. Furthermore, multi-link bursts can be located between the preamble and the postamble by Time Division Multiplexing (TDM) or Frequency Division Multiplexing (FDM).
摘要:
Provided is an apparatus and method for constructing a subframe to support a multi link in a multi-hop relay cellular network. In a first section of a subframe, a subframe for communication with a mobile station (MS) is constructed, and in a next second section of the subframe, a subframe for communication with a relay station (RS) is constructed. Therefore, resources can be efficiently used without interference between subframes, pilots can be flexibly used, advanced technologies can be easily applied, and overhead due to RS switching gaps can be reduced.
摘要:
Provided is an apparatus and method for constructing a frame for transmitting a direct link and a multi-hop relay link signal in one frame in a multi-hop relay cellular network. The signals are multiplexed on a time-division multiplexing basis and a base station downlink and relay station uplink subframe are located in a conventional downlink subframe. Accordingly, the overhead for a relay station receive transition gap in the downlink subframe and a relay station transmit transition gap in the conventional uplink subframe are eliminated.
摘要:
In a photosensitive resin, a photoresist composition including the photosensitive resin and a method of forming a photoresist pattern using the photoresist composition, the photosensitive resin includes a hydrophobic terminal group having at least five carbon atoms and a blocking group. The photosensitive resin has a weight average molecular weight of from about 6,000 up to about 9,500. The photoresist composition including the photosensitive resin may form a photoresist pattern having a reduced line edge roughness and a fine line width with accuracy.
摘要:
In a photosensitive resin, a photoresist composition having the photosensitive resin, and a method of forming a photoresist pattern by using the photoresist, the photosensitive resin includes a blocking group substituted for an acid. The photosensitive resin has a weight-average molecular weight of from about 6,000 up to about 8,000. The photosensitive resin has a blocking ratio of from about 5% up to about 40%.
摘要:
Electrically erasable programmable read only memory (EEPROM) cells and methods of fabricating the same are provided. An EEPROM cell includes an isolation layer formed at a semiconductor substrate to define an active region. A source region, a buried N+ region and a drain region are serially disposed at the active region. A memory gate is disposed to cross-over the buried N+ region. A first channel region is formed between the source region and the buried N+ region. A tunnel region is located between the buried N+ region and the memory gate and self-aligned with the buried N+ region.
摘要:
Aklavinone C-11 hydroxylase separated from Streptomyces sp.; a gene encoding same; an expression vector comprising said gene; a microorganism transformed with said vector; and a process for preparing novel hybrid anthracyclines by using said vector.