Patent ID: 8649349
Filing Date: 2014-02-11
Classification: H04W

Abstract:
1. A method for reporting power headroom report (PHR) in carrier aggregation scenarios, comprising: a user equipment (UE) encapsulating UE specific power headroom (PH) and/or uplink component carrier (UL CC) specific PH that need to be reported into a same PHR in accordance with a preset order, and meanwhile encapsulating indication information that indicates whether the UE specific PH and each UL CC specific PH configured for the UE are reported or not in the PHR, and then sending the PHR to eNB; said UL CC comprising an uplink primary component carrier (UL PCC) and an uplink secondary component carrier (UL SCC), and UL PCC specific PH comprising Type1 PH and/or Type2 PH, and UL SCC specific PH comprising the Type1 PH; said preset order comprising: an order between the UE specific PH and said each UL CC specific PH configured for the UE, as well as an order between UL PCC specific Type1 PH and UL PCC specific Type2 PH; and after receiving the PHR, the eNB analyzing and obtaining PH and indication information contained in the PHR, and determining type and quantity of the UE specific PH and/or the UL CC specific PH reported in the PHR according to the indication information and scene configured by the eNB for the UE, and then according to the type and quantity of the UE specific PH and/or the UL CC specific PH reported in the PHR as well as the preset order, extracting the UE specific PH and/or the UL CC specific PH from the PH contained in the PHR; wherein The step of encapsulating the indication information that indicates whether the UE specific PH as well as each UL CC specific PH configured for the UE is reported or not in the PHR comprises: the UE respectively indicating whether the UE specific PH is reported or not and whether said each UL CC specific PH configured for the UE is reported or not in the PHR with a plurality of bits of first byte according to the preset order; the step of UE encapsulating the UE specific PH and/or the UL CC specific PH that need to be reported into the same PHR in accordance with the preset order comprises: said UE respectively carrying the UE specific PH and/or the UL CC specific PH that need to be reported with each of second byte and subsequent bytes in the PHR in accordance with the preset order; the step of the eNB analyzing and obtaining the PH and the indication information contained in the PHR comprises: after the eNB receives the PHR, acquiring whether the UE specific PH is reported or not and whether said each UL CC specific PH configured for the UE is reported or not by analyzing and judging said a plurality of bits of the first byte in the PHR, and acquiring the UE specific PH and/or the UL CC specific PH contained in the PHR by analyzing the second byte and the subsequent bytes in the PHR; and wherein, the order between the UE specific PH and said each UL CC specific PH configured for the UE in the preset order is sequentially: the UE specific PH, CC1 specific PH, CC2 specific PH, CC3 specific PH, CC4 specific PH and CC5 specific PH; in the preset order, the order between the UL PCC specific Type1 PH and Type2 PH is sequentially: Type1 PH, Type2 PH; the step of respectively indicating whether the UE specific PH is reported or not and whether said each UL CC specific PH configured for the UE is reported or not with a plurality of bits of the first byte according to the preset order in the PHR comprises: the UE taking first and second bits of the first byte as reserved bits in the PHR, taking a 3 the step of respectively carrying the UE specific PH and/or the UL CC specific PH that need to be reported with each of the second byte and the subsequent bytes in said PHR according to the preset order comprises: the UE taking first two bits of each of the second byte and the subsequent bytes as the reserved bits in the PHR in accordance with the preset order, and latter six bits are used to carry an index of the UE specific PH and/or the UL CC specific PH that need to be reported.