Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2000-05-04
2004-05-25
Appiah, Charles (Department: 2686)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S435200, C370S466000
Reexamination Certificate
active
06741868
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates in general to a technique for interfacing among a mobile terminal, a base station (BS) and a core network in a next-generation mobile telecommunications system, and more particularly to a method, an apparatus and a computer readable record media storing instructions for executing the same method for interfacing among a hybrid type mobile terminal, a hybrid type base transceiver station/base station controller (BTS/BSC) and a core network in a next-generation telecommunication system, e.g., an international mobile telecommunications-2000 (IMT-2000) system and so on, in which a hybrid type synchronous or hybrid type asynchronous radio network determines an operating type of the core network when the core network has a connection thereto, and sends information about the determined core network operating type and information related to the core network to a hybrid type mobile terminal.
In more detail, the present invention relates to a method, an apparatus and a computer readable record media storing instructions for executing the same method for interfacing among a hybrid type mobile terminal, a hybrid type base transceiver station/base station controller (BTS/BSC) and a core network in a mobile telecommunications system, wherein a hybrid type synchronous radio network having a hybrid type BTS/BSC determines the operating type of the core network when the core network has a connection thereto, and sends the determined core network operating type and information related to the core network to the hybrid type synchronous terminal over a synchronous channel (Sync channel), and the hybrid type synchronous terminal recognizes the operating type of the core network on the basis of the core network operating type information (hereinafter, refers to “CN type”) and sets a protocol according to the information related to core network.
Further, the present invention relates to a method, an apparatus and a computer readable record media for executing the same method for interfacing an asynchronous terminal and a hybrid type asynchronous BTS/BSC with a core network in a mobile telecommunications system, wherein a hybrid type asynchronous radio network having a hybrid type asynchronous BTS/BSC determines an operating type of the core network when the core network has a connection thereto, and sends the determined core network operating type information and information related to the core network to a hybrid type asynchronous terminal over a broadcast control channel (BCCH), and the hybrid type asynchronous terminal recognizes the core network on the basis of the core network operating type information and sets a protocol according to the information related to the core network.
DESCRIPTION OF THE PRIOR ART
In a conventional synchronous mobile telecommunications system, a synchronous terminal is connected to a synchronous radio network (for example, a CDMA-2000 radio network), and an ANSI-41 network is connected to a core network.
In a conventional asynchronous mobile telecommunications system, an asynchronous terminal is connected to an asynchronous radio network (for example, a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN)), and a global system for mobile communications-mobile application part (GSM-MAP) network is connected to a core network.
FIG. 1
shows core network interface architectures of the conventional synchronous/asynchronous mobile telecommunication systems as mentioned above.
FIG. 1A
is a view showing the core network interface architecture of the conventional synchronous mobile telecommunications system. In this drawing, the reference numeral
11
denotes a synchronous terminal,
12
denotes a synchronous radio network (i.e., a code division multiple access-2000 (CDMA-2000) radio network) which performs a data interfacing operation with the synchronous terminal
11
and includes a synchronous base transceiver station/base station controller (BTS/BSC), and
13
denotes a synchronous core network which is connected to the synchronous radio network
12
and includes a synchronous mobile services switching center (MSC)
14
and an ANSI-41 network
15
.
In the above core network interface architecture of the conventional synchronous mobile telecommunications system, the synchronous terminal
11
can be connected to only the synchronous radio network
12
as well known to one skilled in the art, which is in turn connected to the synchronous core network
13
, thereby allowing the synchronous terminal
11
to be interfaced with only the synchronous core network
13
.
FIG. 1B
is a view showing the core network interface architecture of the conventional asynchronous mobile telecommunications system. In this drawing, the reference numeral
21
denotes an asynchronous terminal,
22
denotes an asynchronous radio network (i.e., a UTRAN) which includes a base transceiver station (BTS) and a radio network controller (RNC), and
23
denotes an asynchronous core network which includes an asynchronous mobile services switching center (MSC)
24
connected to the UTRAN
22
and a GSM-MAP network
25
connected to the asynchronous MSC
24
.
In the above core network interface architecture of the conventional asynchronous mobile telecommunications system, the asynchronous terminal
21
is connected to the asynchronous radio network
22
(i.e., UTRAN) which is in turn connected to the asynchronous core network
23
, thereby allowing the asynchronous terminal
21
to perform a data interfacing operation with the asynchronous core network
23
.
FIG. 2
shows layered protocol structures of the conventional synchronous/asynchronous mobile telecommunication systems as mentioned above.
FIG. 2A
is a view showing the layered protocol structure of the conventional synchronous mobile telecommunications system. In this drawing, the reference numeral
30
denotes a synchronous terminal,
40
a synchronous radio network and
50
a synchronous core network connected to the synchronous radio network
40
.
The synchronous terminal
30
comprises a layer
3
31
, a layer
2
35
and a layer
1
36
. The layer
3
31
includes a synchronous call control (CC) entity
32
for management of a call and a synchronous mobility management (MM) entity
33
for management of a mobility.
The layer
1
36
is a physical layer which offers data transport services to higher layers and transfers transport blocks over a radio interface.
The layer
2
35
is a data link layer which includes following sub layers, a medium access control (MAC) sub layer and a radio link control (RLC) sub layer. However, the sub layers are not shown in this drawing.
The MAC sub layer offers data transfer services on logical channels to a higher layer (RLC sub layer) and on transport channels to a lower layer (the physical layer
36
). The MAC sub layer is responsible for mapping of the logical channel onto the appropriate transports channel.
The RLC sub layer offers data transfer services on primitive to a higher layer and on logical channels to a lower layer (MAC sub layer). Also, the RLC sub layer performs error correction, duplicate detection, ciphering and flow control of the data.
The layer
3
31
is a network layer which includes following sub layers, a synchronous radio resource (RR) sub layer, a synchronous call control (CC) entity
32
and a mobility management (MM) entity
33
. In synchronous system, the synchronous RR sub layer is not apparently separated from the others in the layer
3
31
.
The RR sub layer offers data transfer services on primitive to a lower layer (RLC sub layer) and handles a control plane signaling of the layer
3
31
between a user equipment (UE) and a synchronous radio network. The RR sub layer manages a radio resource. Also, the RR sub layer assigns/re-configures/releases the radio resource to UE/UTRAN.
The CC entity handles a call control signaling of layer
3
between the UEs and the synchronous radio network.
The MM entity handles a mobility management signaling of layer
3
between the UEs and the synchronous radio netwo
Hwang Woon-Hee
Koo Yeon-Sang
Lee Chong-Won
Park Jae-Hong
Yang Shin-Hyun
Appiah Charles
Baker & Botts LLP
Curitell Communications Inc.
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