CPC H04B 7/0486 (2013.01) [H04B 7/0626 (2013.01); H04B 7/0639 (2013.01); H04L 5/0048 (2013.01); H04L 25/0226 (2013.01); H04W 52/146 (2013.01); H04W 72/0473 (2013.01)] | 11 Claims |
1. A User Equipment (UE) having a plurality of transmit chains that do not support relative transmit phase continuity, the UE comprising:
processing circuitry configured to:
derive a power P to be used for uplink power control for a physical uplink shared channel transmission; and
determine a power to be used for a set of antenna ports based on the power P according to a rule that depends on whether the UE is utilizing codebook based transmission or non-codebook based transmission for the physical uplink shared channel transmission, the set of antenna ports being antenna ports on which the physical uplink shared channel transmission is transmitted with non-zero power,
wherein the rule is such that, for a case of codebook based transmission, in order to determine the power to be used for the set of antenna ports based on the power P according to the rule, the processing circuitry is further configured to:
derive a second power P′ by scaling the power P with a ratio, R, wherein the ratio R is a first number antenna ports divided by a second number of antenna ports, wherein the first number of antenna ports is a number of antenna ports on which the physical uplink shared channel transmission is transmitted with non-zero power, and the second number of antenna ports is determined according to a multi-antenna transmission configuration as a third number of spatial layers indicated by a gNB; and
equally divide the second power P′ across the set of antenna ports on which the physical uplink shared channel transmission is transmitted with non-zero power.
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