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1. CN101179860 - ZC sequence ranking method and apparatus for random access channel

Office Chine
Numéro de la demande 200710194922.0
Date de la demande 05.12.2007
Numéro de publication 101179860
Date de publication 14.05.2008
Numéro de délivrance 101179860
Date de délivrance 16.03.2011
Type de publication B
CIB
H04W 74/08
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
WRÉSEAUX DE TÉLÉCOMMUNICATIONS SANS FIL
74Accès au canal sans fil, p.ex. accès planifié, accès aléatoire
08Accès non planifié, p.ex. accès aléatoire, ALOHA ou accès multiple par détection de porteuse
CPC
H04W 74/0833
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
74Wireless channel access, e.g. scheduled or random access
08Non-scheduled ; or contention based; access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
0833using a random access procedure
H04J 13/0062
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
13Code division multiplex systems
0007Code type
0055ZCZ [zero correlation zone]
0059CAZAC [constant-amplitude and zero auto-correlation]
0062Zadoff-Chu
H04J 13/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
13Code division multiplex systems
16Code allocation
Déposants ZTE Communication Co., Ltd.
中兴通讯股份有限公司
Inventeurs Hao Peng
郝鹏
Xia Shuqiang
夏树强
Mandataires shangzhi feng wumeng qiu
北京康信知识产权代理有限责任公司 11240
北京康信知识产权代理有限责任公司 11240
Titre
(EN) ZC sequence ranking method and apparatus for random access channel
(ZH) 随机接入信道的ZC序列排序方法和装置
Abrégé
(EN)
The invention discloses a sorting method and device of random access channel ZC sequence. The method includes: step 1, ZC sequences are divided into a low cube measure group and a high cube measure group according to a QPSK cube measure to ensure every ZC sequence index in the low cube measure group is less or more than every sequence index in the high cube measure group; step 2, the sequences in the low cube measure group and the high cube measure group are respectively divided into S subgroups by S-1 biggest circle shift thresholds according to a supporting biggest cell radius or biggest circle shifts of the ZC sequence in a high speed environment; step 3, the sequences are sorted in every subgroup according to the cube measure of the ZC sequence, thereby, the ZC sequence in contiguous subgroups of the low cube measure group and the high cube measure group have different orders, and the sequences in contiguous subgroups of the low cube measure group and the high cube measure group have the same order.

(ZH)

本发明公开了随机接入信道的ZC序列排序方法和装置,该方法包括:步骤一,根据QPSK的立方度量,将ZC序列分成低立方度量组和高立方度量组,使得低立方度量组内每条ZC序列的索引小于或者大于高立方度量组内每条序列的索引;步骤二,根据ZC序列在高速环境下所支持的最大小区半径或最大循环移位量,用S-1个最大循环移位门限分别将低立方度量组和高立方度量组内的序列分成S个子组;步骤三,根据ZC序列的立方度量,在各子组内,对序列进行排序,使得在低立方度量组和高立方度量组内,相邻子组内的ZC序列具有不同的排序顺序以及低立方度量组和高立方度量组相邻的子组内的序列具有相同的排序顺序。