Method and apparatus for uplink transmission power control and timing in coordinated multipoint transmission schemes
AssigneeQUALCOMM Incorporated
InventorsPeter Gaal, Wanshi Chen, Juan Montojo, Hao Xu
Life of this patent
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Abstract
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives control information from a first cell, generates an uplink transmission to a second cell based in part on the received control information from the first cell, receives a transmission power setting based on the uplink transmission to the second cell, and transmits in uplink using the transmission power to the second cell.
Claims28
A method of wireless communication, comprising:
- receiving control information on downlink from a first cell;
- generating an uplink transmission to a second cell based in part on the received control information from the first cell;
- receiving a transmission power setting on the downlink from the first cell based on the uplink transmission based on a second cell identifier (ID);
- transmitting in uplink using the transmission power to the second cell;
- determining a downlink timing based on the received control information from the first cell;
- setting an uplink timing for communication with the second cell based on the determined downlink timing;
- and
- receiving timing advance information from the first cell for adjusting the uplink timing, the timing advance information being based on information from the second cell.
A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:
- an antenna configured for transmitting and receiving;
- means for receiving, using the antenna, control information on downlink from a first cell;
- means for generating an uplink transmission to a second cell based in part on the received control information from the first cell;
- means for receiving, using the antenna, a transmission power setting on the downlink from the first cell based on the uplink transmission based on a second cell identifier (ID);
- means for transmitting, using the antenna, in uplink using the transmission power to the second cell;
- means for determining a downlink timing based on the received control information from the first cell;
- means for setting an uplink timing for communication with the second cell based on the determined downlink timing;
- and
- means for receiving, using the antenna, timing advance information from the first cell for adjusting the uplink timing, the timing advance information being based on information from the second cell.
A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
- receiving control information on downlink from a first cell;
- generating an uplink transmission to a second cell based in part on the received control information from the first cell;
- receiving a transmission power setting on the downlink from the first cell based on the uplink transmission based on a second cell identifier (ID);
- transmitting in uplink using the transmission power to the second cell;
- determining a downlink timing based on the received control information from the first cell;
- setting an uplink timing for communication with the second cell based on the determined downlink timing;
- and
- receiving timing advance information from the first cell for adjusting the uplink timing, the timing advance information being based on information from the second cell.
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive control information on downlink from a first cell;
- generate an uplink transmission to a second cell based in part on the received control information from the first cell;
- receive a transmission power setting on the downlink from the first cell based on the uplink transmission to the second cell;
- transmit in uplink using the transmission power to the second cell;
- determine a downlink timing based on the received control information from the first cell;
- set an uplink timing for communication with the second cell based on the determined downlink timing;
- and
- receive timing advance information from the first cell for adjusting the uplink timing, the timing advance information being based on information from the second cell.
Dependencies are inferred from the claim text.