Apparatus and method for transmitting/receiving data in communication system

A data transmitting method in a communication system, the method comprising:

• receiving adjacent terminal information from a plurality of terminals through a frequency band for transmission and reception of data between the terminals and an access point (AP);
• identifying distances between the terminals within a service coverage of the AP based on the adjacent terminal information to determine positions of the terminals;
• grouping the terminals into terminal groups through position-based grouping based on the positions of the terminals;
• verifying transmission possible times of the terminal groups to the AP;
• and
• transmitting information on the transmission possible times to the terminals included in the terminal groups using beacon frames,
• wherein, as the transmission possible times of the terminal groups, different time intervals are allocated in a beacon interval between the beacon frames.

A data reception apparatus in a communication system, comprising:

• a generation unit configured to generate adjacent terminal information in a frequency band for transmission and reception of data between a plurality of terminals and an access point (AP);
• a transmission unit configured to transmit the adjacent terminal information to the AP;
• and
• a reception unit configured to receive information on a transmission possible time of a corresponding one of terminal groups using beacon frames, the transmission possible time being transmitted from the AP,
• wherein the terminal groups are determined by grouping a plurality of terminals within a service coverage of the AP based on distances between the terminals that are identified based on adjacent terminal information provided by the terminals;
• wherein, as transmission possible times of the terminal groups, different time intervals are allocated in a beacon interval between the beacon frames,
• wherein the terminals of the terminal groups access the AP during different time intervals, and transmit and receive data to and from the AP, and
• wherein terminals included in a terminal group among the terminal groups make multiple accesses to the AP in a CSMA (carrier sense multiple access) scheme during a time interval which is allocated to said terminal group, and transmit and receive data to and from the AP.

A data receiving method in a communication system, the method comprising:

• generating adjacent terminal information in a frequency band for transmission and reception of data between a plurality of terminals and an access point (AP);
• transmitting the adjacent terminal information to the AP;
• and
• receiving information on a transmission possible time of a corresponding one of terminal groups using beacon frames, the transmission possible time being transmitted from the AP,
• wherein the terminal groups are determined by grouping a plurality of terminals within a service coverage of the AP based on distances between the terminals that are identified based on adjacent terminal information provided by the terminals;
• wherein, as transmission possible times of the terminal groups, different time intervals are allocated in a beacon interval between the beacon frames,
• wherein the terminals of the terminal groups access the AP during different time intervals, and transmit and receive data to and from the AP, and
• wherein terminals included in a terminal group among the terminal groups make multiple accesses to the AP in a CSMA (carrier sense multiple access) scheme during a time interval which is allocated to said terminal group, and transmit and receive data to and from the AP.