发明名称 Sequence derivation for reference signal patterns
摘要 A reference signal, RS, is generated in a wireless communication system based on a starting position, in the frequency domain, of the RS and a transmission channel bandwidth of the RS. At least one of the starting position of the RS and the bandwidth allocated to a transmission channel for the RS is/are ascertained. A base sequence index, BSI, is then derived by mapping at least one ascertained of the RS starting position and transmission channel bandwidth (12) according to a predefined mapping rule (14) to the BSI (16). The RS is determined based on the derived BSI.
申请公布号 US9337978(B2) 申请公布日期 2016.05.10
申请号 US201213390227 申请日期 2012.01.04
申请人 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) 发明人 Sorrentino Stefano
分类号 H04W4/00;H04L5/00;H04W72/04;H04L12/26;H04W72/08 主分类号 H04W4/00
代理机构 Coats & Bennett, PLLC 代理人 Coats & Bennett, PLLC
主权项 1. A computer-based method performed by a controller circuit of a transmitter for generating a reference signal (RS) in a wireless communication system, comprising: ascertaining, by an ascertainer circuit of the controller circuit in the transmitter, a starting position, in the frequency domain, of the RS, and a transmission channel bandwidth for the RS; deriving, by a base sequence index (BSI) deriver circuit of the controller circuit, the BSI deriver circuit being operationally coupled to the ascertainer circuit, a BSI by mapping the starting position and the transmission channel bandwidth according to a predefined mapping rule to the BSI, wherein the predefined mapping rule maps a combination of a starting resource block (RB) index for a physical uplink channel and a bandwidth of the physical uplink channel to a group index, the predefined mapping rule constrained by a number of available group indexes; determining, by an RS determiner circuit of the controller circuit, the RS determiner circuit being operationally coupled to the BSI deriver circuit, the RS based on the derived BSI; and wherein the determined RS is transmitted from the transmitter to a receiver in the wireless communication system.
地址 Stockholm SE