Exact(6)
In addition to the information exchange between the users and the transmission points, the cooperation requires information exchange between the cooperating points or a common scheduling entity that controls the set of cooperating points.
After measuring the channels of the cooperating points, UE derives the RI, PMI, and CQI feedback.
For CoMP with two cooperating points there are two CQI options for both points.
The CQI feedback options for DPS are relatively simple since DPS refers to single point transmission with possible muting assumptions from the cooperating points.
The use of long-term channel-state information (CSI) is reasonable when the cooperating points are not connected through a high-capacity and low-latency backhaul like optical fiber.
The transmission equation (2) for single stream transmission, where all cooperating points perform JT, N=L, can be written as y k = ∑ n = 1 N c n h k, n eff x k + ∑ m = M − N + 1 M h k, m eff x m + n k, (6).
Similar(54)
The cooperating point may be muted or transmitting normally.
For example, the interference level depends on CS/CB and whether or not a cooperating point is muted.
Table 5 Simulated CQI options CQI feedback Primary point Cooperating point Remarks CQ I 1 CQ I 2 CQI k JT, aggr., CQI k, 1 Rel 10 S 1 I out + N + S 2, S JT, aggr.
We then investigate a practical finite-rate feedback design that simultaneously supports interference coordination, joint transmission (JT), and dynamic point selection (DPS) with a varying number of cooperating transmission points while operating a single-cell transmission as a fallback mode.
When at least one RN is cooperating with the point-to-point communication, the system can be referred to as RA system.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com