Data Communication Scheduling
1 Assignment
0 Petitions
Accused Products
Abstract
A data communication scheduling system (300) of a radio base station (100) serving multiple cells (10-30) comprises multiple radio equipment, REs, (101-103) and antenna interfaces (115, 125, 135) connectable to antennas (110, 120, 130). In order to reduce the power consumption, only a subset of the RE (101) is active, while the other REs (102, 103) are turned off. A transmitter controller (155) is arranged for controlling the active RE (101) to be shared among multiple cells (10-30) during a radio frame (40) so that each cell (10-30) is guaranteed at least one sub frame (50-58) for downlink transmission. A receiver antenna system multiplexer(140) selectively interconnects the active RE (101) with the antenna interfaces (115, 125, 135) according to the operation of a receiver controller (145). Consequently, the RE (101) becomes connected to different antenna interfaces (115, 125, 135) during different sub frames (50-58) to thereby allow each cell (10-30) at least one assigned uplink sub frame (53-55) in the radio frame (40) at a predefined sub frame distance after the at least one downlink sub frame (50-52) assigned to the same cell (10-30).
58 Citations
48 Claims
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1-24. -24. (canceled)
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25. A data communication scheduling system adapted for arrangement in a radio base station serving at least M≧
- 2 cells, said data communication scheduling system comprising;
at least M antenna interfaces each connectable to an antenna arrangement of at least M antenna arrangements; MTX transmitters, wherein MTX≧
M;MRX receivers, wherein MRX≧
M, wherein at least one transmitter of said MTX transmitters and at least one receiver of said MRX receivers are assigned to each cell of said M cells, and wherein each transmitter of said MTX transmitters and each receiver of said MRX receivers is connectable to at least one antenna interface of said at least M antenna interfaces;a transmitter controller arranged for scheduling data transmission by said radio base station for said M cells during a radio frame comprising multiple sub frames using NTX transmitters of said MTX transmitters, wherein 1≦
NTX<
MTX, wherein MTX-NTX remaining transmitters of said MTX transmitters are turned off or inoperable during said radio frame, wherein said transmitter controller is arranged for scheduling at least one transmitter of said NTX transmitters for transmission of data destined for user equipment in a first cell of said M cells during at least one sub frame of said radio frame and transmission of data destined for user equipment in a second cell of said M cells during at least another sub frame of said radio frame, and wherein said transmitter controller is arranged for assigning each cell of said M cells at least one sub frame of said radio frame for transmission of data destined for user equipment in said each cell;a receiver antenna system multiplexer connected to at least NRX receivers among said MRX receivers, wherein 1 ≦
NRX<
MRX, wherein MRX-NRX remaining receivers of said MRX receivers are turned off or inoperable during said radio frame, and wherein the M antenna interfaces assigned for said M cells are arranged for selectively connecting a receiver of said NRX receivers to an antenna interface of said M antenna interfaces; anda receiver controller arranged for controlling said receiver antenna system multiplexer to selectively interconnect said NRX receivers and said M antenna interfaces to connect at least one receiver of said NRX receivers to a first antenna interface of said at least M antenna interfaces during at least one sub frame of said radio frame and to a second antenna interface of said at least M antenna interfaces during at least another sub frame of said radio frame, and to connect, for each cell of said M cells, said antenna interface assigned to said each cell to a receiver of said NRX receivers during at least one sub frame that is assigned for reception of data from user equipment in said each cell and that is present at a predefined sub frame distance from said at least one sub frame assigned to said each cell by said transmitter controller. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
- 2 cells, said data communication scheduling system comprising;
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39. A method for scheduling data communication by a radio base station serving at least M≧
- 2 cells and comprising at least M antenna arrangements, MTX transmitters, wherein MT≧
M, and MRX receivers, wherein MRX≧
M, wherein each cell of said M cells are assigned at least one transmitter of said MTX transmitters, at least one receiver of said MRX receivers and an antenna arrangement of said at least M antenna arrangements, and wherein each transmitter of said MTX transmitters is connectable to at least one antenna arrangement of said at least M antenna arrangements and each receiver of said MRX receivers is connectable to at least one antenna arrangement of said at least M antenna arrangements, said method comprising;scheduling data transmission by said radio base station for said M cells during a radio frame comprising multiple sub frames using NTX transmitters of said MTX transmitters, wherein 1≦
NTX<
MTX, and wherein MTX-NTX remaining transmitters of said MTX transmitters are turned off or inoperable during said radio frame by scheduling at least one transmitter of said NTX transmitters to transmit data destined for user equipment in a first cell of said M cells during at least one sub frame of said radio frame and to transmit data destined for user equipment in a second cell of said M cells during at least another sub frame of said radio frame, and by assigning each cell of said M cells at least one sub frame of said radio frame for transmission of data destined for user equipment in said each cell; andselectively connecting a receiver of NRX receivers among said MRX receivers, wherein 1≦
NRX<
MRX, and wherein MRX-NRX remaining receivers of said MRX receivers are turned off or inoperable during said radio frame, to an antenna arrangement of said M antenna arrangements by connecting at least one receiver of said NRX receivers to a first antenna arrangement of said M antenna arrangements during at least one sub frame of said radio frame and to a second antenna arrangement of said M antenna arrangements during at least another sub frame of said radio frame and by connecting, for each cell of said M cells, said antenna arrangement assigned to said each cell to a receiver of said NRX receivers during at least one sub frame that is assigned for reception of data from user equipment in said each cell and that is present at a predefined sub frame distance from said at least one sub frame assigned to said each cell for transmission of data. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
- 2 cells and comprising at least M antenna arrangements, MTX transmitters, wherein MT≧
Specification