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LTE resource allocation

專利號(hào)
US10873952B2
公開日期
2020-12-22
申請(qǐng)人
Google LLC(US CA Mountain View)
發(fā)明人
Jibing Wang
IPC分類
H04W64/00; H04W72/08; H04B7/08; H04W76/15; H04L5/00; H04B7/0413; H04W72/04
技術(shù)領(lǐng)域
ue,ccs,kpi,cc,mimo,enb,expected,resources,available,location
地域: CA CA Mountain View

摘要

A method for allocating available transceiver resources across different component carriers (CC) includes obtaining a carrier aggregation capability that includes a list of available CCs supported by the UE at a current location for simultaneous communication with a carrier aggregation capable network. The method also includes, for each of the available CCs, obtaining an expected key performance indicator (KPI) associated with the corresponding available CC at the current location. The method also includes allocating the available transceiver resources across the available CCs based on the expected KPIs at the current location.

說明書

Referring to FIG. 5B, the building 590 now obstructs the line of site (e.g., dominant communication path) between the eNB 102 and the UE 300 at the second location 430b. Moreover, UE 300 is located a further distance away from the eNB 102 when the UE 300 is located at the second location 430b than when the UE 300 was located at the first location 430a (FIG. 5A). Here, the CC-KPI log 550 indicates that the expected KPIs 450, 450b associated with the first component carrier CC1 at the second location 430b have reduced to low values unsuitable for supporting a MIMO antenna configuration on the high frequency band. For instance, due to the building 590 obstructing the line of sight and the eNB 102 being located further away from the UE 300 at the second location 430b, first CC1 including the high frequency band now includes a RANK and SINR of 1.2 and 10 dB, respectively. The RANK and SINR associated with the second CC2 at the second location 430b, however, include substantially unchanged values of 3.1 and 30 dB, respectively, since the low frequency band of the second CC2 is suitable for penetrating the building 590 as well as providing a larger geographical area. Accordingly, the UE 300 may allocate at least four resources to the second CC2 to support the 4×4 MIMO antenna configuration on the low frequency band based on the expected KPIs 450b associated with the second CC2 at the second location 430b. The UE 300 may allocate the remaining resources to the first CC1 to enable operation of the UE 300 in the CA mode, but without allocating excess resources thereto since the corresponding expected KPIs 450b indicate that the UE 300 does not support a MIMO antenna configuration on the second CC2 at the second location 430b. While the examples herein include a UE 300 having a total of six transceiver resources 302, other examples can include UEs having more or less transceiver resources 302 for supporting any N×M MIMO antenna configuration on one or more CCs when multiple CCs are available for carrier aggregation.

權(quán)利要求

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