Select diversity for radio communications
First Claim
1. A method implemented in a base station for transmitting data on a downlink from a radio access network to a mobile radio, the radio access network including radio base stations, where each radio base station is associated with one or more cells, and where a packet communication with the mobile is associated with a candidate set of cells for the mobile radio that can potentially transmit packets to the mobile radio, the method comprising:
- receiving at a first one of the base stations associated with a first one of the cells in the candidate set of cells a packet for possible downlink transmission to the mobile radio;
determining whether the mobile radio has selected the first cell in the candidate set to transmit a packet to the mobile radio; and
if so, the first base station transmitting the packet from the selected first cell to the mobile radio.
1 Assignment
0 Petitions
Accused Products
Abstract
Select diversity in cellular radio communications involving both the radio access network and the mobile radio ensures that an optimal base station cell under a current condition is selected for communicating with the mobile radio. A candidate set of radio base station cells is defined for a radio connection between the radio network and the mobile radio. Packets are sent via the radio network to each of multiple radio base stations having a cell in the candidate set. The mobile radio detects a current quality of communication for the radio connection, and based on that detected quality, the candidate cell set may change. The mobile radio selects one of the cells in the candidate cell set to send a next or specific data packet based on one or more selection criteria.
45 Citations
39 Claims
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1. A method implemented in a base station for transmitting data on a downlink from a radio access network to a mobile radio, the radio access network including radio base stations, where each radio base station is associated with one or more cells, and where a packet communication with the mobile is associated with a candidate set of cells for the mobile radio that can potentially transmit packets to the mobile radio, the method comprising:
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receiving at a first one of the base stations associated with a first one of the cells in the candidate set of cells a packet for possible downlink transmission to the mobile radio;
determining whether the mobile radio has selected the first cell in the candidate set to transmit a packet to the mobile radio; and
if so, the first base station transmitting the packet from the selected first cell to the mobile radio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for use in transmitting data on a downlink from a radio access network to a mobile radio, the radio access network including radio base stations, where each radio base station is associated with one or more cells, the method including defining a candidate set of cells for the mobile radio, the method comprising:
sending packets to be transmitted to the mobile radio from a node to each base station associated with at least one of the cells in the candidate set of cells, where the mobile radio selects which of the base stations associated with at least one of the cells in the candidate set of cells will transmit a specific packet to the mobile radio. - View Dependent Claims (11, 12, 13)
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14. A method implemented in a mobile radio for facilitating transmission of data downlink from a radio access network to the mobile radio, the radio access network including radio base stations, where each radio base station is associated with one or more cells, and where the mobile radio is associated with a candidate set of cells having base stations that receive packets to be transmitted to the mobile station, the method comprising:
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selecting a cell in the candidate set for transmitting a packet to the mobile radio;
signalling to the radio base station associated with the selected cell to transmit the packet to the mobile radio; and
receiving the packet from the selected cell. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. Apparatus for use in transmitting data on a downlink from a radio access network to a mobile radio, the radio access network including radio base stations where each radio base station is associated with one or more cells, and where a packet communication with the mobile is associated with a candidate set of cells for the mobile radio that can potentially transmit packets to the mobile radio, the apparatus comprising:
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a receiver for receiving at a first one of the base stations associated with a first one of the cells in the candidate set of cells a packet for possible downlink transmission to the mobile radio;
processing circuitry configured to determine whether the mobile radio has selected the first cell in the candidate set to transmit a packet to the mobile radio; and
a transmitter at the first base station for transmitting the packet from the selected first cell to the mobile radio if the processing circuitry determines that the mobile radio has selected the first cell in the candidate set to transmit a packet to the mobile radio. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. An anchor node for use in transmitting data on a downlink from a radio access network to a mobile radio, the radio access network including radio base stations where each radio base station is associated with one or more cells, the anchor node including a memory for storing a candidate set of cells for the mobile radio, the anchor node comprising:
communications circuitry for sending packets to be transmitted to the mobile radio to each base station associated with at least one of the cells in the candidate set of cells, where the mobile radio selects which of the base stations associated with at least one of the cells in the candidate set of cells will transmit a specific packet to the mobile radio. - View Dependent Claims (31, 32, 33)
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34. A mobile radio for facilitating transmission data a downlink from a radio access network to the mobile radio, the radio access network including radio base stations where each radio base station is associated with one or more cells, and where the mobile radio is associated with a candidate set of cells having base stations that receive packets to be transmitted to the mobile station, the mobile radio comprising:
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processing circuitry configured to select a cell in the candidate set for transmitting a packet to the mobile radio;
a radio transmitter for signalling from the mobile radio to the radio base station associated with the selected cell an indication to transmit the packet to the mobile radio; and
a radio receiver for receiving the packet from the selected cell at the mobile radio. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification