1、 第 1 页PHR(.Power Headroom Report)LTE 无线通信系统中，终端的 MAC 层向基站上报的发射功率余量。UE 功率余量报告过程是为了向服务 eNB 提供 UE 所谓最大传输功率与当前 UL-SCH 传输功率估计值之间的差异信息。协议描述如下：The Power Headroom reporting procedure is used to provide the serving eNB with information about the difference between the nominal UE maximum transmit power (在下面 3
2、6.101 中定义)and the estimated power for UL-SCH transmission per activated Serving Cell and also with information about the difference between the nominal UE maximum power and the estimated power for UL-SCH and PUCCH transmission on PCell.第 2 页从下面的协议说明可知，UE 最大发射功率可以为 23dBm。36.101 协议中定义：PPowerClass PPow
3、erClass is the nominal UE power (i.e., no tolerance).UE Maximum Output PowerThe following UE Power Classes define the maximum output power（P PowerClass） for any transmission bandwidth within the channel bandwidth. The period of measurement shall be at least one sub frame (1ms).Table 6.2.2-1: UE Powe
4、r Class第 3 页EUTRA bandClass 1 (dBm)Tolerance (dB)Class 2 (dBm)Tolerance (dB)Class 3 (dBm)Tolerance (dB)Class 4 (dBm)Tolerance (dB)1 23 22 23 223 23 224 23 25 23 26 23 27 23 228 23 229 23 210 23 211 23 212 23 2213 23 214 23 217 23 218 23 219 23 220 23 2221 23 224 23 233 23 234 23 235 23 236 23 237 23
5、 238 23 239 23 240 23 241 23 242 23 243 23 2Note 1: The above tolerances are applicable for UE(s) that support up to 4 E-UTRA operating bands. For UE(s) that support 5 or more E-UTRA bands the maximum output power is expected to decrease with each additional band and is FFSNote 2: For transmission b
6、andwidths (Figure 5.6-1) confined within FUL_low and FUL_low + 4 MHz or FUL_high 4 MHz and FUL_high, the maximum output power requirement is relaxed by reducing the lower tolerance limit by 1.5 dB 第 4 页Note 3: For the UE which supports both Band 11 and Band 21 operating frequencies, the tolerance is
7、 FFS.Note 4: PPowerClass is the maximum UE power specified without taking into account the tolerance参考波段范围：第 5 页Table 5.5-1 E-UTRA operating bandsUplink (UL) operating bandBS receiveUE transmitDownlink (DL) operating bandBS transmit UE receiveE-UTRA Operating BandFUL_low FUL_high FDL_low FDL_highDup
8、lex Mode1 1920 MHz 1980 MHz 2110 MHz 2170 MHz FDD2 1850 MHz 1910 MHz 1930 MHz 1990 MHz FDD3 1710 MHz 1785 MHz 1805 MHz 1880 MHz FDD4 1710 MHz 1755 MHz 2110 MHz 2155 MHz FDD5 824 MHz 849 MHz 869 MHz 894MHz FDD61 830 MHz 840 MHz 875 MHz 885 MHz FDD7 2500 MHz 2570 MHz 2620 MHz 2690 MHz FDD8 880 MHz 915
9、 MHz 925 MHz 960 MHz FDD9 1749.9 MHz 1784.9 MHz 1844.9 MHz 1879.9 MHz FDD10 1710 MHz 1770 MHz 2110 MHz 2170 MHz FDD11 1427.9 MHz 1447.9 MHz 1475.9 MHz 1495.9 MHz FDD12 699 MHz 716 MHz 729 MHz 746 MHz FDD13 777 MHz 787 MHz 746 MHz 756 MHz FDD14 788 MHz 798 MHz 758 MHz 768 MHz FDD15 Reserved Reserved
10、FDD16 Reserved Reserved FDD17 704 MHz 716 MHz 734 MHz 746 MHz FDD18 815 MHz 830 MHz 860 MHz 875 MHz FDD19 830 MHz 845 MHz 875 MHz 890 MHz FDD20 832 MHz 862 MHz 791 MHz 821 MHz FDD21 1447.9 MHz 1462.9 MHz 1495.9 MHz 1510.9 MHz FDD.24 1626.5 MHz 1660.5 MHz 1525 MHz 1559 MHz FDD.33 1900 MHz 1920 MHz 19
11、00 MHz 1920 MHz TDD34 2010 MHz 2025 MHz 2010 MHz 2025 MHz TDD35 1850 MHz 1910 MHz 1850 MHz 1910 MHz TDD36 1930 MHz 1990 MHz 1930 MHz 1990 MHz TDD37 1910 MHz 1930 MHz 1910 MHz 1930 MHz TDD38 2570 MHz 2620 MHz 2570 MHz 2620 MHz TDD39 1880 MHz 1920 MHz 1880 MHz 1920 MHz TDD40 2300 MHz 2400 MHz 2300 MHz 2400 MHz TDD41 2496 MHz 2690 MHz 2496 MHz 2690 MHz TDD42 3400 MHz 3600 MHz 3400 MHz 3600 MHz TDD43 3600 MHz 3800 MHz 3600 MHz 3800 MHz TDDNote 1: Band 6 is not applicable第 6 页
