摘要:
Disclosed are a radio communication terminal device, a radio communication base station device, and a radio communication method which can prevent input of an interference wave peak into a detection window of a cyclic shift sequence allocated to a local cell and improve the channel estimation accuracy in a base station. A frequency serving as a reference is set for a transmission band width of all the cells and respective terminals in which frame synchronization is established. By using the frequency as a reference point, a phase rotation addition unit (110) of a reference signal generation unit (108) adds a phase rotation corresponding to a frequency difference δ; between the transmission band of the reference point and that of the reference signal to a ZC sequence as a reference signal in the frequency region. The ZC sequence to which the phase rotation is added is multiplexed with transmission data in a multiplexing unit (114) and a multiplexed signal is transmitted from a transmission RF unit (115).
摘要:
It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).
摘要翻译:本发明的目的是提供一种在保持Zadoff-Chu序列的数量以构成序列组的同时,使得可以减少不同顺序组之间的相关性的序列分配方法。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,根据RB号设置阈值(Xth(m)) 在步骤(ST103)中,在步骤(ST104)中设定与RB号(m)对应的序列长度(N)的步骤(ST103),判断是否满足| r / N-rb / Nb | = Xth(m) 步骤(ST106),如果判断为肯定,则在步骤(ST107)中包括序列号(rb)中的序列号(r)和序列长度(N)的多个Zadoff-Chu序列,并且分配序列 组(rb)到步骤中的相同单元(ST112)。
摘要:
Provided is a cyclic shift sequence generation method which can prevent coming of an interference wave into a desired wave detection window even if a cyclic shift sequence has a high mutual correlation in different bandwidths, thereby improving a channel estimation accuracy in a base station. In this method, a cyclic shift sequence number to be allocated to a cell is decided in advance. Moreover, when the cyclic shift amount between cyclic shift sequences allocated in cells is Δ1 and the cyclic shift amount of the cyclic shift sequences allocated between the cells is Δ2, Δ1 and Δ2 are made different when generating a cyclic shift sequence.
摘要:
It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).
摘要翻译:本发明的目的是提供一种在保持Zadoff-Chu序列的数量以构成序列组的同时,使得可以减少不同顺序组之间的相关性的序列分配方法。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,根据RB号设置阈值(Xth(m)) 在步骤(ST103)中,在步骤(ST104)中设定与RB号(m)对应的序列长度(N)的步骤(ST103),判断是否满足| r / N-rb / Nb | = Xth(m) 步骤(ST106),如果判断为肯定,则在步骤(ST107)中包括序列号(rb)中的序列号(r)和序列长度(N)的多个Zadoff-Chu序列,并且分配序列 组(rb)到步骤中的相同单元(ST112)。
摘要:
Provided is a radio communication device which can reduce the affect of inter-cell interference using a small reception process amount. The radio communication device includes a sequence number setting unit (101) which sets a sequence number for a ZAC sequence used for spreading a response signal and another sequence number for a ZAC sequence used for a reference signal in a ZAC sequence generation unit (102) and a ZAC sequence generation unit (109), respectively. The ZAC sequence generation unit (102) generates a ZAC sequence of the set sequence number from the sequence number setting unit (101). A spread unit (104) spreads the response signal. The ZAC sequence generation unit (109) generates a set ZAC sequence from the sequence number setting unit (101) and outputs the ZAC sequence as a reference signal to an IF FT unit (110). A sequence number setting unit (101) changes the sequence number at a transmission switching timing between the response signal and the reference signal.
摘要:
Provided is a radio communication device which can prevent generation of mutual correlation peak between ZC sequences and reduce degradation of BLER characteristic of a CS-ZC sequence. In this device, a sequence length adjustment unit (103) truncates or extends the ZC sequence while maintaining the symmetry of the ZC sequence inputted from a ZC sequence generation unit (102) so as to adjust the sequence length to the number of subcarriers equivalent to the transmission bandwidth of a reference signal inputted from a sequence length setting unit (101). More specifically, the sequence length adjustment unit (103) truncates or extends any one of symbols constituting the ZC sequence so as to truncate or extend the ZC sequence. A transmission RF unit (107) transmits the ZC sequence after the sequence length adjustment.
摘要:
Provided is a radio communication device which can prevent generation of mutual correlation peak between ZC sequences and reduce degradation of BLER characteristic of a CS-ZC sequence. In this device, a sequence length adjustment unit (103) truncates or extends the ZC sequence while maintaining the symmetry of the ZC sequence inputted from a ZC sequence generation unit (102) so as to adjust the sequence length to the number of subcarriers equivalent to the transmission bandwidth of a reference signal inputted from a sequence length setting unit (101). More specifically, the sequence length adjustment unit (103) truncates or extends any one of symbols constituting the ZC sequence so as to truncate or extend the ZC sequence. A transmission RF unit (107) transmits the ZC sequence after the sequence length adjustment.
摘要:
It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).
摘要翻译:本发明的目的是提供一种在保持Zadoff-Chu序列的数量以构成序列组的同时,使得可以减少不同顺序组之间的相关性的序列分配方法。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,根据RB号设置阈值(Xth(m)) 在步骤(ST103)中,在步骤(ST104)中设定与RB号(m)对应的序列长度(N)的步骤(ST103),判断是否满足| r / N-rb / Nb | = Xth(m) 步骤(ST106),如果判断为肯定,则在步骤(ST107)中包括序列号(rb)中的序列号(r)和序列长度(N)的多个Zadoff-Chu序列,并且分配序列 组(rb)到步骤中的相同单元(ST112)。
摘要:
It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups and between same sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold values (Xth1(m)) and (Xth2(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth1(m) is satisfied in a step (ST106), judging whether ¦r/N−rb/Nb¦=Xth2(m) is satisfied in a step (ST107), including Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST108); if both judgments are positive, and allocating the sequence group (rb) to the same cell in a step (ST113).
摘要翻译:本发明的目的是提供一种序列分配方法,该方法在保持Zadoff-Chu序列的数目以构成序列组的同时,可以减少不同顺序组之间和相同序列组之间的相关性。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,设定阈值(Xth1(m))和(Xth2(m)) 根据步骤(ST103)中的RB号(m),在步骤(ST104)中设定与RB号(m)对应的序列长度(N),判断是否| r / N-rb /Nb≥= Xth1 在步骤(ST106)中,满足步骤(ST106)满足步骤(ST107)中判断是否满足步骤(ST107)中的| r / N-rb /Nb≥= Xth2(m),包括序列号(r)的Zadoff-Chu序列和 步骤(ST108)中序列组(rb)中的序列长度(N); 如果两个判断都是肯定的,并且在步骤(ST113)中将序列组(rb)分配给相同的单元。
摘要:
It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups and between same sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold values (Xth1(m)) and (Xth2(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether ¦r/N−rb/Nb¦=Xth1(m) is satisfied in a step (ST106), judging whether ¦r/N−rb/Nb¦=Xth2(m) is satisfied in a step (ST107), including Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST108); if both judgments are positive, and allocating the sequence group (rb) to the same cell in a step (ST113).
摘要翻译:本发明的目的是提供一种序列分配方法,该方法在保持Zadoff-Chu序列的数目以构成序列组的同时,可以减少不同顺序组之间和相同序列组之间的相关性。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,设定阈值(Xth1(m))和(Xth2(m)) 根据步骤(ST103)中的RB号(m),在步骤(ST104)中设定与RB号(m)对应的序列长度(N),判断是否| r / N-rb /Nb≥= Xth1 在步骤(ST106)中,满足步骤(ST106)满足步骤(ST107)中判断是否满足步骤(ST107)中的| r / N-rb /Nb≥= Xth2(m),包括序列号(r)的Zadoff-Chu序列和 步骤(ST108)中序列组(rb)中的序列长度(N); 如果两个判断都是肯定的,并且在步骤(ST113)中将序列组(rb)分配给相同的单元。