Method for sending PDCCHs (Physical Downlink Control Channels) and equipment for sending PDCCHs
A technology of equipment and user equipment, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as strong interference between cells in the downlink control area, and achieve the effect of improving coverage performance
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[0123] example 1:
[0124] Suppose two user sets are divided, namely the strong interference set U high And low interference set U low . At the same time, the subframes carrying the PDCCH are divided into sets R1, R2, R3, and R4, and the second method is selected when determining the transmission parameters. Assuming that the original UE priority queues are UE1, UE2, UE3, UE4, UE5 in sequence, UE2 and UE5 need to transmit PDCCH with higher power, which belongs to the strong interference set U high , UE1, UE3, UE5 belong to low interference set U low .
[0125] For the cell in C1:
[0126] In each subframe in R1, the original UE priority queue is adjusted according to the user set to which it belongs. The adjusted UE priority queue is UE2, UE5, UE1, UE3, UE4; each UE in the adjusted queue in turn Allocate PDCCH resources and allow U low The UEs in (UE1, UE3, UE4) transmit the PDCCH with a lower aggregation level and higher power.
[0127] In other subframes, the original UE prio...
Example
[0134] Example 2:
[0135] Suppose two user sets are divided, namely the strong interference set U high And low interference set U low . At the same time, the subframes carrying the PDCCH are divided into sets R1, R2, R3, and R4, and the first method is selected when determining the transmission parameters. Assuming that the original UE priority queues are UE1, UE2, UE3, UE4, UE5 in sequence, UE2 and UE5 need to transmit PDCCH with higher power, which belongs to the strong interference set U high , UE1, UE3, UE5 belong to low interference set U low .
[0136] For the cell in C1:
[0137] In each subframe in R1, according to the original UE priority queue, PDCCH resources are allocated to the UE in turn, and U low The UE in the UE transmits the PDCCH with a lower aggregation level and higher power;
[0138] In other subframes, PDCCH resources are allocated to the UE in sequence according to the UE priority queue, and U high The PDCCH transmission power of the UEs (ie, UE2, UE5) ...
Example
[0140] Example 3:
[0141] Suppose three user sets are divided, namely the strong interference set U exter , Medium interference set U mediate , Low interference set U int er . At the same time, the PDCCH-bearing subframes are divided into sets R1, R2, R3, and the second method is selected when determining the transmission parameters, and the power is reduced and the aggregation level is increased in the subframes that bear the non-strong interference PDCCH. exter The UE in the PDCCH resource is allocated. Assume that the original UE priority queues are UE1, UE2, UE3, UE4, UE5, UE6 in sequence. Among them, UE2 and UE5 need to transmit PDCCH with higher power, which belongs to the strong interference set U exter , UE1 and UE6 belong to the low interference set U int er , UE3 and UE4 belong to medium interference set U mediate .
[0142] For each subframe belonging to R1:
[0143] For the cell belonging to C1, the original UE priority queue is adjusted according to the user se...
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