Frequency reusing method in wireless communication system and radio access station system for the same
AssigneeSeah Networks Co., Ltd.
InventorHyung-Joon Jeon
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Abstract
A frequency reusing method in a wireless communication system including a coverage region, which has first, second and third regions, and a radio access station (RAS) transmitting a traffic to a portable subscriber station (PSS) in the coverage region, comprises (a) transmitting the traffics by assigning an identical frequency band to the first, second and third regions during a first interval; (b) transmitting the traffics by assigning the identical frequency band to the first region during a second interval; (c) transmitting the traffics by assigning the identical frequency band to the second region during a third interval; and (d) transmitting the traffics by assigning the identical frequency band to the third region during a fourth interval.
Claims28
A frequency reusing method in a wireless communication system in which a radio access station (RAS) transmits information to portable subscriber stations (PSSs) in a coverage region of the RAS, the coverage region including first, second, and third regions, the method comprising:
- (a) transmitting the information to at least one PSS in the coverage region by assigning an identical frequency band to all of the first, second, and third regions during a first interval according to a frequency reuse plan;
- (b) transmitting the information to at least one PSS in the first region by assigning the identical frequency band to the first region during a second interval according to the frequency reuse plan;
- (c) transmitting the information to at least one PSS in the second region by assigning the identical frequency band to the second region during a third interval according to the frequency reuse plan;
- and
- (d) transmitting the information to at least one PSS in the third region by assigning the identical frequency band to the third region during a fourth interval according to the frequency reuse plan,
- wherein the frequency reuse plan is determined by comparing a carrier to interference and noise ratio (CINR) of each of the PSSs in the coverage region and a threshold value,
- wherein the identical frequency band is reused in the first, second, and third regions, and
- wherein the steps (a) to (d) are sequentially performed.
A frequency reusing method in a wireless communication system in which a radio access station (RAS) transmits information to portable subscriber stations (PSSs) in a plurality of coverage regions, the method comprising:
- (a) transmitting the information to at least one PSS in the plurality of coverage regions by assigning an identical frequency band to all of the plurality of coverage regions during a first interval according to a frequency reuse plan;
- and
- (b) transmitting the information to at least one PSS in a first coverage region among the plurality of coverage regions at least once by assigning the identical frequency band to the first coverage region during a second interval according to the frequency reuse plan,
- wherein the frequency reuse plan is determined by comparing a carrier to interference and noise ratio (CINR) of each of the PSSs in the plurality of coverage regions and a threshold value,
- wherein the identical frequency band is reused in the plurality of coverage regions, and
- wherein the steps (a) and (b) are sequentially performed.
A radio access station (RAS) system for a frequency reuse, comprising:
- a carrier to interference and noise ratio (CINR) measuring unit configured to measure a carrier to interference and noise ratio (CINR) of a plurality of portable subscriber stations;
- a frequency reuse (FR) determining unit configured to determine a frequency reuse plan by comparing the carrier to interference and noise ratio (CINR) and a threshold value;
- and
- a scheduler configured to perform a first information transmission for transmitting information by assigning an identical frequency band to a plurality of coverage regions during a first interval and then perform a second information transmission for transmitting the information by assigning the identical frequency band to at least one of the plurality of coverage regions during a second interval according to the frequency reuse plan,
- wherein the identical frequency band is reused in the plurality of coverage regions.
Dependencies are inferred from the claim text.