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US 2019/0357067 A1Published application
Multi-Cell Signals in OFDM Wireless Networks
AssigneeComcast Cable Communications, LLC
InventorEsmael Hejazi Dinan
Life of this patent
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Abstract
A wireless device receives messages indicating CSI measurement resources related to transmission points. For example, the CSI measurement resources may be for cells belonging to at least two base stations or belonging to at least two sectors of a base station. The wireless device measures CSI employing at least CSI measurement resources of the cells. The wireless device quantizes the measured CSI jointly across cells and encodes and transmits the jointly quantized CSI. The wireless device receives a resource assignment for data packet(s). The wireless device receives signals carrying the data packets from multiple cells.
Claims49
A method for use in a wireless device, the method comprising:
- receiving, via a first cell of a first transmission point of a first base station, at least one message indicating channel state information (CSI) measurement resources for each cell of a subset of cells, wherein the subset of cells comprises the first cell of the first transmission point and at least one second cell of a second transmission point;
- measuring, based on the CSI measurement resources, CSI for the subset of cells;
- quantizing the measured CSI jointly across cells of the subset of cells;
- transmitting, to the first base station, the jointly quantized CSI;
- receiving, via the first transmission point of the first base station, at least one resource assignment for at least one packet;
- and
- receiving signals simultaneously via the first cell of the first transmission point and the at least one second cell of the second transmission point, wherein the signals correspond to the at least one packet.
4 more elements
A method for use in a first base station, the method comprising:
- transmitting, to a wireless device and via a first cell of a first transmission point of the first base station, at least one message indicating channel state information (CSI) measurement resources for each cell of a subset of cells, wherein the subset of cells comprises the first cell of the first transmission point and at least one second cell of a second transmission point;
- receiving and decoding jointly quantized CSI, wherein CSI is measured based on the CSI measurement resources for the subset of cells, and the measured CSI is quantized jointly across cells of the subset of cells to generate the jointly quantized CSI;
- transmitting, to the wireless device and via the first transmission point, at least one resource assignment for at least one packet;
- and
- transmitting, via the first cell of the first transmission point, first signals to the wireless device, wherein the first signals correspond to the at least one packet, and wherein second signals corresponding to the at least one packet are transmitted via the at least one second cell of the second transmission point.
2 more elements
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
- receive, via a first cell of a first transmission point of a first base station, at least one message indicating channel state information (CSI) measurement resources for each cell of a subset of cells, wherein the subset of cells comprises the first cell of the first transmission point and at least one second cell of a second transmission point;
- measure, based on the CSI measurement resources, CSI for the subset of cells;
- quantize the measured CSI jointly across cells of the subset of cells;
- transmit, to the first base station, the jointly quantized CSI;
- receive, via the first transmission point of the first base station, at least one resource assignment for at least one packet;
- and
- receive signals simultaneously via the first cell of the first transmission point and the at least one second cell of the second transmission point, wherein the signals correspond to the at least one packet.
7 more elements
A first base station comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the first base station to:
- transmit, to a wireless device and via a first cell of a first transmission point of the first base station, at least one message indicating channel state information (CSI) measurement resources for each cell of a subset of cells, wherein the subset of cells comprises the first cell of the first transmission point and at least one second cell of a second transmission point;
- receive and decode jointly quantized CSI, wherein CSI is measured based on the CSI measurement resources for the subset of cells, and the measured CSI is quantized jointly across cells of the subset of cells to generate the jointly quantized CSI;
- transmit, to the wireless device and via the first transmission point, at least one resource assignment for at least one packet;
- and
- transmit, via the first cell of the first transmission point, first signals to the wireless device, wherein the signals correspond to the at least one packet, and wherein second signals corresponding to the at least one packet are transmitted via the at least one second cell of the second transmission point.
5 more elements
Dependencies are inferred from the claim text.