CN100388810C - Method of implementing video services in 3G mobile communication system - Google Patents

Method of implementing video services in 3G mobile communication system Download PDF

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Publication number
CN100388810C
CN100388810C CNB2005100004709A CN200510000470A CN100388810C CN 100388810 C CN100388810 C CN 100388810C CN B2005100004709 A CNB2005100004709 A CN B2005100004709A CN 200510000470 A CN200510000470 A CN 200510000470A CN 100388810 C CN100388810 C CN 100388810C
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communication system
mobile communication
generation
signaling
called
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CN1805559A (en
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杜建成
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The present invention discloses a method for achieving the video service of a third-generation mobile communication system. The present invention is characterized in that a calling or a called mobile switching center in a second-generation mobile communication system identifies a calling to be a video service calling of the third-generation mobile communication system according to received signaling which carries a video service identify of the third-generation mobile communication system; a calling or a called double-mode mobile terminal which resides in the second-generation mobile communication system is switched into the third-generation mobile communication system from the second-generation mobile communication system in an active mode; the video service is achieved through the third-generation mobile communication system. The method of the present invention can make the double-mode mobile terminal residing in the second-generation mobile communication system directly start or receive the video service of the third-generation mobile communication system, and wireless access technology is shielded from users. Besides, service loss is avoided, and providers can flexibly and effectively utilize the second-generation and the third-generation networks to achieve the balance of load and service.

Description

A kind of method that realizes the 3-G (Generation Three mobile communication system) video traffic
Technical field
The present invention relates to the mobile communication technology field, specially refer to a kind of method that on the second generation (2G) mobile communication system and the third generation (3G) mobile communication system and the dual system of depositing, realizes the 3G video traffic.
Background technology
For an operator that has 2G mobile communication system and 3G mobile communication system simultaneously, how fully effectively utilizing these two networks is the problems that must solve.A solution commonly used at present is under 2G/3G mode mobile terminal idle condition, preferentially this 2G/3G mode mobile terminal is resided on the 2G network by intersystem cell reselection mechanism, GSM network for example, at this moment, this user's voice or low-speed data service preferentially carry on the net at 2G, and in the time of the 2G network over loading, then switching part speech business and data service are to 3G network, for example WCDMA, CDMA2000 and TD-SCDMA network, thus realize load balancing.
Though this scheme can realize 2G and the utilization of 3G mobile communication system resources effective, but, because general 2G network can not be supported the 3G video traffic such as video telephone or the like usually, also can't support and the relevant signaling of above-mentioned 3G video traffic simultaneously, therefore, when the 2G/3G mode mobile terminal resides on the 2G mobile communications network, can not carry out these video traffics usually.For example, for the GSM network, the gsm system of standard is not support visual telephone service, even can not support the transmission of relevant signaling, therefore, when the GSM/WCDMA mode mobile terminal resides on the GSM network, can't directly initiate or receive visual telephone service, promptly cause the business disappearance of GSM/WCDMA system.At this moment, if this GSM/WCDMA mode mobile terminal user wishes to carry out visual telephone service, then this user must be at first manually with this GSM/WCDMA mode mobile terminal gravity treatment to the WCDMA network, could normally carry out visual telephone service.From said process as can be seen, this loaded down with trivial details operating process will be carried out the 3G video traffic to 2G/3G mode mobile terminal user and bring very big inconvenience.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method that on 2G mobile communication system and 3G mobile communication system and the dual system of depositing, realizes the 3G video traffic, make when the 2G/3G mode mobile terminal resides in the 2G network, also can directly initiate and receive the 3G video traffic.
In the method for realization 3-G (Generation Three mobile communication system) video traffic of the present invention, caller in the second generation mobile communication system or called mobile switching centre are according to the received signaling that carries 3-G (Generation Three mobile communication system) video traffic sign, determine that this calling is that the 3-G (Generation Three mobile communication system) video traffic is called out, the signaling that the mobile switching centre of caller will carry 3-G (Generation Three mobile communication system) video traffic sign sends to the base station controller of managing the caller mode mobile terminal, perhaps, the called mobile switching centre signaling that will carry 3-G (Generation Three mobile communication system) video traffic sign sends to the base station controller of the called mode mobile terminal of management; It is video traffic that the base station controller of management caller or called mode mobile terminal detects the business that current mode mobile terminal asks, initiatively the caller or the called mode mobile terminal that will reside in the second generation mobile communication system switches to 3-G (Generation Three mobile communication system) from second generation mobile communication system, and realizes described 3-G (Generation Three mobile communication system) video traffic by 3-G (Generation Three mobile communication system).
Second generation mobile communication system of the present invention is a gsm system.
3-G (Generation Three mobile communication system) of the present invention is WCDMA system, CDMA2000 system or TD-SCDMA system.
The received 3-G (Generation Three mobile communication system) video traffic of caller in the second generation mobile communication system of the present invention or called mobile switching centre is designated the retention of original field in the original signaling of second generation mobile communication system, the original cell.
When the caller mode mobile terminal resided in the second-generation system communication system, described original signaling was that mode mobile terminal sends to calling mobile exchanging center and sets up signaling; Described original cell is carrier capability 1 cell; Described original field is the Speech version identification field.
The received 3-G (Generation Three mobile communication system) video traffic of caller in the second generation mobile communication system of the present invention or called mobile switching centre is designated the field that increases in original cell of the original signaling of second generation mobile communication system; Or the cell that increases in the original signaling of second generation mobile communication system; Or be the signaling of the second generation mobile communication system that increases newly.
The mobile switching centre of caller of the present invention sends to the 3-G (Generation Three mobile communication system) video traffic sign of base station controller of management caller mode mobile terminal or the retention that 3-G (Generation Three mobile communication system) video traffic that called mobile switching centre sends to the base station controller of the called mode mobile terminal of management is designated original field in the original signaling of second generation mobile communication system, the original cell.
When caller or called mode mobile terminal resided in the second generation mobile communication system, described original signaling was that calling mobile exchanging center sends to the assignment demand signalling that caller base station controller or called mobile switching centre send to called base station controller; Described original cell is the channel type cell; Described original field is the voice/data identification field.
The mobile switching centre of caller of the present invention sends to the base station controller of management caller mode mobile terminal or 3-G (Generation Three mobile communication system) video traffic that called mobile switching centre sends to the base station controller of the called mode mobile terminal of management is designated the field that increases in original cell of the original signaling of second generation mobile communication system; Or the cell that increases in the original signaling of second generation mobile communication system; Or be the signaling of the second generation mobile communication system that increases newly.
This shows, use the method that on 2G mobile communication system and 3G mobile communication system and the dual system of depositing, realizes the 3G video traffic of the present invention, for the 2G/3G mode mobile terminal that resides in the 2G network, when it is initiated 3G video traffic or becomes 3G video traffic called, the network side of 2G mobile communication system is handoff procedure between the initiation system initiatively, this 2G/3G mode mobile terminal is switched to 3G network from the 2G network, and on 3G network, realize the 3G video traffic of being asked, and do not need in advance manually with mode mobile terminal from the 2G network reselection to 3G network, realization shields wireless access technology to the user, greatly facilitate user's use, also avoided simultaneously because the business that the 2G network does not support the 3G video traffic to cause lacks, made the operator can be flexible, effectively utilize 2G and 3G network to realize load and professional balanced.
Description of drawings
Fig. 1 is the calling procedure figure according to the described realization visual telephone service of the preferred embodiment of the present invention;
Fig. 2 is the called flow figure according to the described realization visual telephone service of the preferred embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make invention is clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
In order to solve the problems of the prior art, make the 2G/3G mode mobile terminal that resides in the 2G network also can directly initiate and receive the 3G video traffic, method of the present invention is expanded carrying out interactive signaling in the 2G mobile communication system, makes it support the 3G video traffic.When the network side of 2G mobile communication system learns that from the signaling of travelling carriage the type of current 2G/3G mode mobile terminal institute requested service is the 3G video traffic by analyzing, network side is handoff procedure between the initiation system initiatively, this 2G/3G mode mobile terminal is switched to 3G network from the 2G network, and on 3G network, realize the 3G video traffic of being asked.
Be example with GSM/WCDMA dual system and visual telephone service below, describe method of the present invention in detail, just on the GSM/WCDMA dual system, realize the method for visual telephone service.
Fig. 1 has shown the calling procedure according to the described realization visual telephone service of the preferred embodiment of the present invention.As shown in Figure 1, when the GSM/WCDMA mode mobile terminal resides in the GSM network, and after initiating visual telephone service, carry out following steps:
Step 101:GSM/WCDMA mode mobile terminal sends the signaling have the visual telephone service type identification calling mobile exchanging center (MSC) to the GSM network, and the current business of notice caller MSC is a visual telephone service.
In this step, the described signaling that has the visual telephone service type identification can realize by certain field in original signaling cell is expanded.For example, a preferred embodiment of the present invention sends to carrier capability 1 (BC1 in foundation (Setup) signaling of MSC to the GSM/WCDMA mode mobile terminal, Bearer Capability 1) Speech version of cell indication (Speech Version Indication) field expands, and makes the Speech Version Indication field after the expansion can represent visual telephone service.The represented various Speech version of this field are indicated by table 1 illustrate after the expansion, stipulate according to GSM standard, Speech Version Indication field comprises 4 bits, define 5 values altogether and represented 5 kinds of Speech version respectively, shown in preceding 5 row in the table 1, other values of these 4 bits are retention.The described method of present embodiment has increased a kind of version of representing visual telephone service on the basis of these 5 Speech version, represent with retention 1000, shown in the last column in the table 1.Certainly, also can use other arbitrarily retention identify visual telephone service.
Bit The Speech version indication
0000 GSM is (Full Rate) Speech version 1 at full speed
0010 GSM is Speech version 2 at full speed
0100 GSM is Speech version 3 at full speed
0001 GSM Half Speed (Half Rate) Speech version 1
0101 GSM Half Speed Speech version 3
1000 Video telephone
Table 1
When the business of being asked when the GSM/WCDMA mode mobile terminal is visual telephone service, this GSM/WCDMA mode mobile terminal can the Setup signaling in the Speech VersionIndication field of BC1 cell be set to 1000, send to the caller MSC on the GSM network then.
It will be appreciated by those skilled in the art that, in above-mentioned expansion process to the Setup signaling, also can expand other fields of BC1 cell in the Setup signaling, perhaps the field of other cells of Setup signaling is expanded, even can expand by the signaling that the GSM/WCDMA mode mobile terminal sends to caller MSC other, identical effect can be reached, and the spirit and scope of the present invention can be do not exceeded.
Caller MSC on the step 102:GSM network detects from the signaling GSM/WCDMA mode mobile terminal, that carry the visual telephone service sign, and the business that identifies current GSM/WCDMA bimodulus mobile status initiation is a visual telephone service.
In the present embodiment, described caller MSC discerns from the Speech Version Indication field of BC1 cell in the Setup signaling of mode mobile terminal by detecting, if this field is 1000, the business that then current mode mobile terminal is initiated is a visual telephone service.
The network side of step 103:GSM system is initiatively initiated handover operation between system, GSM/WCDMA double module mobile terminal from GSM network is switched to the WCDMA network, and realize visual telephone service in the WCDMA network.
In this step, described switching can directly be initiated by the caller MSC on the GSM network, also can be initiated by the GSM network base station controller (BSC) of described this GSM/WCDMA mode mobile terminal of caller MSC notice management.The process of described caller MSC notice BSC can be by expanding realization to certain field in certain cell of original signaling.For example, in the preferred embodiment of the present invention, voice/data sign (Speech/Data Indicator) field that caller MSC is sent to channel type (Channel Type) cell in assignment request (Assignment Request) signaling of BSC expands, and makes the field after the expansion can identify visual telephone service.The represented various voice/data types of this cell are by table 2 illustrate after the expansion, according to the GSM standard regulation, Speech/Data Indicator field also comprises 4 bits, provides 3 values altogether and has identified 3 kinds of voice or data respectively, shown in preceding 3 row in the table 2, other value is a retention.The described method of present embodiment has increased a kind of service identification of video telephone on the basis of these 3 signs, also represent with retention 1000, shown in the last column in the table 2.Certainly, also can use other arbitrarily retention identify visual telephone service.
Bit The voice/data sign
0001 Voice
0010 Data
0011 Signaling
1000 Video telephone
Table 2
When caller MSC detects business that the GSM/WCDMA mode mobile terminal asked and is visual telephone service, this MSC can Assignment Request signaling in the Speech/Data Indicator field of Channel Type cell be set to 1000, send to the BSC of this GSM/WCDMA mode mobile terminal under current then.When described BSC detected business that current GSM/WCDMA mode mobile terminal asked and is visual telephone service, initiatively handoff procedure between the initiation system switched to the WCDMA network with GSM/WCDMA double module mobile terminal from GSM network.
Similarly, it will be appreciated by those skilled in the art that, in above-mentioned expansion process to Assignment Request signaling, also can expand other fields of Channel Type cell in the Assignment Request signaling, perhaps the field of other cells of Assignment Request signaling is expanded, even can expand by the signaling that caller MSC sends to BSC other, identical effect can be reached, and the spirit and scope of the present invention can be do not exceeded.
No matter be caller MSC or the Access Network BSC handoff procedure from GSM to the WCDMA network of initiating all with system of the prior art handoff procedure identical, be specifically with system between the directed retry process identical, and, therefore here just do not describe in detail because the directed retry process is a standard procedure between described system.
Need to prove, the type of service of the current GSM/WCDMA mode mobile terminal of above-mentioned MSC notice BSC request is a visual telephone service, and the process of GSM/WCDMA mode mobile terminal notice caller MSC in the step 101, except the method that the existing field to existing cell in the existing signaling expands, can also realize by a lot of other modes.For example, can realize by the field that in the existing cell of existing signaling, increases new expression visual telephone service type, perhaps the cell that increases new expression visual telephone service type in existing signaling is realized, or can directly represent that by defining new signaling current type of service is a visual telephone service, or the like.More than these methods can not exceed the spirit and scope of the present invention.But, those skilled in the art will appreciate that described method and the additive method that utilizes original signaling, original cell and original field of the preferred embodiment of the present invention, to the change minimum of consensus standard, also the easiest realization.
By said method, make the GSM/WCDMA mode mobile terminal reside in the GSM network can directly initiate visual telephone service, and do not need in advance manually the double module mobile terminal from GSM network reselection in the WCDMA network, to greatly facilitate user's use.
And when the GSM/WCDMA mode mobile terminal resides in the WCDMA network, can directly initiate visual telephone service, thereby, do not need to carry out the process of above-mentioned steps 101~step 103.
Use method of the present invention, not only can make the GSM/WCDMA mode mobile terminal that resides in the GSM network initiatively initiate visual telephone service, can also receive visual telephone service and call out.
Fig. 2 has shown the called flow according to the described realization visual telephone service of the preferred embodiment of the present invention.As shown in Figure 2, when the GSM/WCDMA mode mobile terminal resides in the GSM network, and after becoming visual telephone service called, will carry out following steps:
Called MS C on the step 201:GSM network is according to receiving the signaling that carries the visual telephone service type identification, learn that current calling is video phone call after, at first in the GSM network, carry out normal paging, wait for user's page response.
Call out in order to realize visual telephone service, the GSM network is except needs are expanded above-mentioned Setup signaling and Assignment Request signaling, also will be to the signaling of transmitting between attaching position register (HLR) and the MSC, for example, caller MSC roaming number response (PRN) message in called HLR inquiry called roaming number process is expanded; In addition, also having the signaling of transmitting between MSC and the MSC also will expand, is visual telephone service so that MSC can identify the type of service of this calling, thus finish this visual telephone service from caller to called call proceeding process.Described here expansion can be adopted the method for original field contents of original cell in the original signaling of above-mentioned expansion, or in original cell of original signaling, increase field, or be in original signaling, to increase cell, or even increase the method for new signaling, all can realize method of the present invention.
After step 202: called MS C obtains user's page response, on the GSM network, set up normal signaling and connect.
It is identical that the signaling that this step is described sets up GSM network in signaling step of connecting and the prior art is connected the process of foundation, therefore just here do not describe in detail.
Step 203: after signaling connection foundation was finished, the gsm system network side switched to GSM/WCDMA double module mobile terminal from GSM network on the WCDMA network, realizes visual telephone service on the WCDMA network.
Equally, identical with step 103, described switching can directly be initiated by the called MS C on the GSM network, perhaps also can be initiated by the BSC of described this GSM/WCDMA mode mobile terminal of called MS C notice management.And described called MS C notice BSC method is also identical with the described method of step 103, promptly can realize by original signaling, original cell and original field, perhaps realizes by the method that increases new field or cell or signaling.
Equally, no matter to be that called MS C or the Access Network BSC handoff procedure from GSM to the WCDMA network of initiating is all identical with directed retry process system the prior art.
By the described method of step 201~step 203, the feasible mode mobile terminal that resides in the GSM net can directly receive the calling of visual telephone service, has avoided in the prior art owing to the GSM/WCDMA mode mobile terminal that resides in the GSM net can not be answered the business disappearance that the visual telephone service calling causes.
And when the GSM/WCDMA mode mobile terminal resides in the WCDMA network, can directly answer visual telephone service, thereby, do not need to carry out the process of above-mentioned steps 201~step 203.
Need to prove that the described method of the foregoing description can be applied in other 2G/3G dual systems, for example: GSM/CDMA2000 dual system and GSM/TD-SCDMA dual system or the like, and be not limited in the described GSM/WCDMA dual system of embodiment.
In addition, other 3G video traffics of higher bandwidth can be realized, need to the described visual telephone service of the foregoing description also in the 3G system, and be not limited to visual telephone service.
More than lift preferred embodiment; the purpose, technical solutions and advantages of the present invention have been carried out further detailed description; institute is understood that; the above is the preferred embodiments of the present invention; not in order to show the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. method that realizes the 3-G (Generation Three mobile communication system) video traffic, it is characterized in that, caller in the second generation mobile communication system or called mobile switching centre determine that according to the received signaling that carries 3-G (Generation Three mobile communication system) video traffic sign this calling is that the 3-G (Generation Three mobile communication system) video traffic is called out;
The signaling that the mobile switching centre of caller will carry 3-G (Generation Three mobile communication system) video traffic sign sends to the base station controller of managing the caller mode mobile terminal, perhaps, the called mobile switching centre signaling that will carry 3-G (Generation Three mobile communication system) video traffic sign sends to the base station controller of the called mode mobile terminal of management;
It is video traffic that the base station controller of management caller or called mode mobile terminal detects the business that current mode mobile terminal asks, initiatively the caller or the called mode mobile terminal that will reside in the second generation mobile communication system switches to 3-G (Generation Three mobile communication system) from second generation mobile communication system, and realizes described 3-G (Generation Three mobile communication system) video traffic by 3-G (Generation Three mobile communication system).
2. the method for claim 1 is characterized in that, described second generation mobile communication system is a gsm system.
3. the method for claim 1 is characterized in that, described 3-G (Generation Three mobile communication system) is WCDMA system, CDMA2000 system or TD-SCDMA system.
4. the method for claim 1, it is characterized in that the received 3-G (Generation Three mobile communication system) video traffic of caller in the described second generation mobile communication system or called mobile switching centre is designated the retention of original field in the original signaling of second generation mobile communication system, the original cell.
5. method as claimed in claim 4 is characterized in that, when the caller mode mobile terminal resided in the second-generation system communication system, described original signaling was that mode mobile terminal sends to calling mobile exchanging center and sets up signaling; Described original cell is carrier capability 1 cell; Described original field is the Speech version identification field.
6. the method for claim 1, it is characterized in that the received 3-G (Generation Three mobile communication system) video traffic of caller in the described second generation mobile communication system or called mobile switching centre is designated the field that increases in original cell of the original signaling of second generation mobile communication system; Or the cell that increases in the original signaling of second generation mobile communication system; Or be the signaling of the second generation mobile communication system that increases newly.
7. the method for claim 1, it is characterized in that the mobile switching centre of described caller sends to the 3-G (Generation Three mobile communication system) video traffic sign of base station controller of management caller mode mobile terminal or the retention that 3-G (Generation Three mobile communication system) video traffic that called mobile switching centre sends to the base station controller of the called mode mobile terminal of management is designated original field in the original signaling of second generation mobile communication system, the original cell.
8. method as claimed in claim 7, it is characterized in that, when caller or called mode mobile terminal resided in the second generation mobile communication system, described original signaling was that calling mobile exchanging center sends to the assignment demand signalling that caller base station controller or called mobile switching centre send to called base station controller; Described original cell is the channel type cell; Described original field is the voice/data identification field.
9. the method for claim 1, it is characterized in that the mobile switching centre of described caller sends to the base station controller of management caller mode mobile terminal or 3-G (Generation Three mobile communication system) video traffic that called mobile switching centre sends to the base station controller of the called mode mobile terminal of management is designated the field that increases in original cell of the original signaling of second generation mobile communication system; Or the cell that increases in the original signaling of second generation mobile communication system; Or be the signaling of the second generation mobile communication system that increases newly.
CNB2005100004709A 2005-01-11 2005-01-11 Method of implementing video services in 3G mobile communication system Expired - Fee Related CN100388810C (en)

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CN101742694B (en) * 2008-11-25 2014-04-16 大唐移动通信设备有限公司 Video telephone business processing method, system and device
CN102291706B (en) * 2010-06-21 2015-07-01 中国移动通信集团公司 Method, system and equipment for realizing third-generation (3G) video service through terminal staying second-generation (2G)
CN101977410A (en) * 2010-10-20 2011-02-16 中兴通讯股份有限公司 Method and device for dual-network and dual-standby terminal to perform communication
CN102131069B (en) * 2010-11-25 2013-01-23 华为技术有限公司 Video call method and system as well as terminal and mobile switching center
EP2728929B1 (en) * 2011-07-01 2019-01-02 Huawei Technologies Co., Ltd. Method, device, and system for communications
CN103188729A (en) * 2011-12-31 2013-07-03 中兴通讯股份有限公司 Method and device for service balance

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