通信人家园

标题: 寻呼请教 [查看完整版帖子] [打印本页]

时间: 2010-7-19 10:13

作者: apolloo 标题: 寻呼请教

在TD的寻呼分析中有如下描述：PCH：3个码道的单个寻呼分组传输信道配置3×240。一个寻呼分组最多能放下寻呼记录数为（其中７位是用户面对寻呼记录的编码）IMSI，（240*3-7）/72=9.9，TMSI，（240*3-7）/40=17.8。每个寻呼分组最大容纳的IMSI个数为9，TMSI个数为17个。如果按照PBP=64帧，重复因子=4计算，寻呼分组=8计算，IMSI寻呼能力＝9×8/0.64/4=28次/秒。

这里的“其中７位是用户面对寻呼记录的编码”是什么意思？在PAGING TYPE1消息中是指那几个IE呢？
10.2.20
PAGING TYPE 1Thismessage is used to send information on the paging channel. One or several UEs,in idle or connected mode, can be paged in one message, which also can containother information.

RLC-SAP: TM

Logical channel: PCCH

Direction: UTRAN ®UE

Information Element/Group name	Need	Multi	Type and reference	Semantics description
Message Type	MP		Message Type
UE Information elements
Paging record list	OP	1 to <maxPage1>
>Paging record	MP		Paging record 10.3.3.23
Other information elements
BCCH modification info	OP		BCCH modification info 10.3.8.1

时间: 2010-7-19 13:04

作者: apolloo

只能自问自答了。这点可以通过ASN编码看出来，如下：
--**************************************************************
--
-- PCCH messages
--
--**************************************************************

PCCH-Message ::=SEQUENCE {

message
PCCH-MessageType
}

PCCH-MessageType ::=CHOICE {

pagingType1
PagingType1,

spare
NULL
}
--***************************************************
--
-- PAGING TYPE 1
--
--***************************************************

PagingType1 ::=SEQUENCE {

-- User equipment IEs

pagingRecordList
PagingRecordList
OPTIONAL,

-- Other IEs

bcch-ModificationInfo
BCCH-ModificationInfo
OPTIONAL,

laterNonCriticalExtensions
SEQUENCE {

-- Container for additional R99extensions

pagingType1-r3-add-ext
BIT STRING
OPTIONAL,

v590NonCriticalExtensions
SEQUENCE {

pagingType1-v590ext
PagingType1-v590ext-IEs,

nonCriticalExtensions
SEQUENCE {}
OPTIONAL

}
OPTIONAL

}
OPTIONAL
}
PagingRecordList ::=
SEQUENCE (SIZE (1..maxPage1)) OF

PagingRecord
maxPage1
INTEGER ::= 8

PagingRecord ::=
CHOICE {

cn-Identity
SEQUENCE{

pagingCause
PagingCause,

cn-DomainIdentity
CN-DomainIdentity,

cn-pagedUE-Identity
CN-PagedUE-Identity

},

utran-Identity
SEQUENCE {

u-RNTI
U-RNTI,

cn-OriginatedPage-connectedMode-UE
SEQUENCE {

pagingCause
PagingCause,

cn-DomainIdentity
CN-DomainIdentity,

pagingRecordTypeID
PagingRecordTypeID

}
OPTIONAL

}
}

时间: 2010-7-19 19:16

作者: miaoquchina

通信人家园 (https://www.txrjy.com/)