SMALL BASE STATION APPARATUS AND METHOD OF ASSIGNING SUBBANDS
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a small base station apparatus (HeNB), wherein interference between the HeNB and an MeNB can be inhibited, without any exchange of information between the HeNB and the MeNB. In the HeNB (100), which forms a cell smaller than a cell formed by the MeNB, a pattern generation unit (101) generates an assigning pattern of subbands to be assigned to the HeNB (100), from among a plurality of subbands that can be used by the HeNB (100), wherein combinations of subbands are different for each of the frames. An assignment unit (102) assigns subbands to communication terminal apparatuses connected to the HeNB (100), on the basis of the assigning pattern.
-
Citations
8 Claims
-
1-5. -5. (canceled)
-
6. A micro base station apparatus forming a smaller cell than a cell formed by a macro base station apparatus comprising:
-
a generation section configured to generate an assigning pattern of subbands assigned to the micro base station apparatus among a plurality of subbands available for the micro base station apparatus, the assigning pattern having a subband combination which varies every predetermined time interval; an assignment section configured to assign the subbands to a communication terminal apparatus connected to the micro base station apparatus based on the assigning pattern; a detection section configured to detect a signal from a communication terminal apparatus connected to the macro base station apparatus from a received signal; and a specification section configured to specify a subband to which the signal is assigned, among the plurality of subbands, wherein the generation section is configured to generate the assigning pattern in subbands other than the subbands to which the signal is assigned, among the plurality of subbands,
-
-
7. A micro base station apparatus forming a smaller cell than a cell formed by a macro base station apparatus comprising:
-
a generation section configured to generate an assigning pattern of subbands assigned to the micro base station apparatus among a plurality of subbands available for the micro base station apparatus, the assigning pattern having a subband combination which varies every predetermined time interval; an assignment section configured to assign the subbands to a communication terminal apparatus connected to the micro base station apparatus based on the assigning pattern; a detection section configured to detect a signal from a communication terminal apparatus connected to the macro base station apparatus from a received signal; and a specification section configured to specify a subband to which the signal is assigned, among the plurality of subbands and specifies the received signal power in the subbands to which the signal is assigned, wherein the generation section is configured to generate the assigning pattern such that a larger number of subbands forming a subband group having lower received signal power are assigned to the micro base station apparatus, among a plurality of subband groups classified according to the received signal power.
-
-
8. A micro base station apparatus forming a smaller cell than a cell formed by a macro base station apparatus comprising:
-
a generation section configured to generate an assigning pattern of subbands assigned to the micro base station apparatus among a plurality of subbands available for the micro base station apparatus, the assigning pattern having a subband combination which varies every predetermined time interval; an assignment section configured to assign the subbands to a communication terminal apparatus connected to the micro base station apparatus based on the assigning pattern; a detection section configured to detect a signal from a communication terminal apparatus connected to the macro base station apparatus from a received signal; and a specification section configured to specify a subband to which the signal is assigned, among the plurality of subbands and specifies the received signal power in the subbands to which the signal is assigned, wherein the generation section is configured to generate the assigning pattern such that subbands are assigned to the micro base station apparatus in sequence from subbands forming a subband group having lower received signal power among a plurality of subband groups classified according to the received signal power.
-
Specification