CN1866892A - Wireless communication system and method for realizing cell multicast service - Google Patents
Wireless communication system and method for realizing cell multicast service Download PDFInfo
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- CN1866892A CN1866892A CN 200510117610 CN200510117610A CN1866892A CN 1866892 A CN1866892 A CN 1866892A CN 200510117610 CN200510117610 CN 200510117610 CN 200510117610 A CN200510117610 A CN 200510117610A CN 1866892 A CN1866892 A CN 1866892A
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Abstract
The invention discloses a wireless communication system and metohd of realizing district multiple broadcast business, which is characterized by the following: at least one CMB district is built in communication network; the CMB district is used for bearing CMB business in wireless communication system network; CMB user switches in wireless communication system to carry out CMB business through CMB district; the CMB district is separated from existing CMB district or building non CMB district. The invention reduces the media service cost, which improves the network performance of wireless communication system.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of wireless communication system and method that realizes cell multicast service.
Background technology
Along with developing rapidly of wireless communication technology, arise at the historic moment based on the various value-added service functions of wireless communication system, comprising the mobile TV function.Described mobile TV function is meant that the user can directly teleview on mobile phone, this function has very big attraction to the user of wireless network.
Described in the R6 agreement of 3GPP (third generation collaborative project) and can in wireless communication system, realize multimedia broadcast multi-broadcasting business, but, the R6 release protocol do not finish because also formulating at present, therefore, can realize that the technology of the part specific implementation of mobile TV function do not put into effect yet, this just makes that also corresponding product also can't be pushed out.
At present, realized commercialization based on the corresponding product of the realization mobile TV function of WCDMA (Wideband Code Division Multiple Access (WCDMA)) R99, R4 protocol version.Corresponding mobile phone products can provide point-to-point live streaming media and order program service for each user.The cost of point-to-point demand (telecommunication) service is very high, and therefore, number of users that will inevitably the limiting handset TV causes commercial value to reduce greatly.
For reducing the cost of streaming media service, also released the broadcasting service that is carried on the SCCPCH (Secondary Common Control Physical Channel) at present, be called CMB (cell multicast) business, thereby make and in the product of WCDMA R99, R4 protocol version, to provide broadcasting service.Describe for the ease of difference, other the non-CMB business except that the CMB business are referred to as the R99 business at this.Correspondingly, provide the sub-district of CMB service to be referred to as the CMB sub-district, do not provide the sub-district of CMB service (non-CMB business promptly is provided) to be referred to as the R99 sub-district.
CMB is a kind of service that business datum is broadcasted on the SCCPCH of sub-district.Under this wireless communication systems structure, each sub-district can dispose many SCCPCH and be used for carrying the CMB channel, join a signaling FACH (forward access channel) and a professional FACH on every SCCPCH, signaling FACH user is carried user signaling RB, and professional FACH is used to carry sub-district CMB channel.
According to 3GPP 25.331, under CELL_FACH (cell forward access channel) state, the SCCPCH that the user selects determines for the U_RNTI of its distribution (the interim identifying information of Universal Terrestrial Radio Access Network network radio net) by UTRAN (universal mobile telecommunications system land radio access web).When the user selects to watch some CMB channels, UTRAN will identify for the corresponding U_RNTI that this user distributes, and the user adjourned the CELL_FACH state, make the user can choose the SCCPCH of this CMB channel of carrying just and from professional FACH reception CMB channel data, the user just can watch as scheduled and want the program watched like this.
At present, point-to-point R99 business is also carried simultaneously in the sub-district of carrying CMB business, and CMB promptly is provided in a sub-district professional and R99 business simultaneously.
Because the CMB business sends with the form of broadcasting in the sub-district, does not have corresponding power control strategy, therefore, realize all standing of CMB business in the CMB sub-district, SCCPCH must carry out the transmission of broadcasting service with bigger power.Like this, the point-to-point R99 business in the sub-district of will giving causes bigger interference, has influence on the effect of R99 user's received television program, the appearance of this situation, and R99 user obviously can't accept.
Summary of the invention
The purpose of this invention is to provide a kind of wireless communication system and method that realizes cell multicast service, thereby can satisfy the professional separately demand of carrying out of CMB community user and non-CMB community user simultaneously, effectively avoid of the influence of issuable CMB business non-CMB business.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of wireless communication system of realizing cell multicast service, comprising:
Set up at least one cell multicast CMB sub-district in communication network, described CMB sub-district is used for carrying the CMB business of wireless communication system network, and the user who uses the CMB business is by carrying out the CMB business in the access to wireless communication system of described CMB sub-district.
Described CMB cell configuration is macrocell or Microcell.
Described system specifically comprises:
Set up CMB sub-district and non-CMB sub-district in the consolidated network coverage in communication network respectively, described CMB sub-district takies different frequency ranges respectively with non-CMB sub-district and commences business, described non-CMB sub-district is used to carry non-CMB business, uses the user of non-CMB business to carry out non-CMB business by described non-CMB sub-district access to wireless communication system.
Described non-CMB cell configuration is macrocell or Microcell.
Described non-CMB sub-district comprises: the point-to-point service sub-district.
The present invention also provides a kind of method that realizes cell multicast service, comprising:
The user of A, use CMB business is by in the access communications network of CMB sub-district;
B, communication network send to the user with the forward access channel FACH carrying of CMB business by CMB sub-district correspondence.
Described method also comprises:
In communication network, be provided with and preserve the adjacent cell relation information of CMB sub-district and non-CMB sub-district, described neighboring BS relationship does not comprise with frequency or alien frequencies neighboring BS relationship, and, user in residing at non-CMB sub-district initiates to set up CMB when professional, then by non-CMB sub-district according to described adjacent cell relation information with this user's directed retry in the CMB sub-district.
Described method also comprises:
User in residing at the CMB sub-district initiates to set up non-CMB when professional, then by the CMB sub-district according to described adjacent cell relation information with this user's directed retry in non-CMB sub-district.
Described method also comprises:
When the user who carries out the CMB business receives beep-page message, then when setting up the called service success, discharge the CMB business, and directed retry is in non-CMB sub-district.
Described method also comprises:
When the user who carries out the CMB business discharges the CMB business, and when FACH switches to dedicated channel DCH, then switch in the non-CMB sub-district by the directed retry process.
As seen from the above technical solution provided by the invention, realization of the present invention makes in wireless communication system can be well for CMB user provides CMB business, thereby effectively reduces the cost of carrying out streaming media service (as mobile phone TV services).
Simultaneously, owing to adopt independently the carrying of CMB sub-district to transmit the CMB business among the present invention, thereby can effectively avoid in carrying out the CMB business procedure interference of other non-CMB business has been improved the network performance of wireless communication system.
And, advantage simple in structure, that be easy to realize that the present invention also has.
Description of drawings
Fig. 1 is the structural representation of system of the present invention.
Embodiment
Be to realize the CMB business, and avoid carrying out in the process the interference of other business that the present invention sets up corresponding C MB sub-district in wireless communication system, and utilizes special-purpose CMB sub-district that CMB is provided traffic bearer services in the CMB business.
System provided by the invention sets up one or more CMB sub-district in communication network, described CMB sub-district is used for carrying the CMB business of wireless communication system network, and CMB user is by carrying out the CMB business in the access to wireless communication system of described CMB sub-district.
The described CMB sub-district of setting up in the system of the present invention is to set up on existing communication system network basis, promptly set up CMB sub-district and non-CMB sub-district in the consolidated network coverage in communication network respectively (for sake of convenience, the back all is called R99 sub-district and R99 business at non-CMB sub-district and non-CMB business), described CMB sub-district takies different frequency ranges respectively with non-CMB sub-district and commences business, effectively to avoid of the interference of CMB business to non-CMB business, described non-CMB sub-district is original sub-district or be similarly newly-built sub-district in the network, and be used to carry non-CMB business such as point-to-point service, make non-CMB service-user to carry out non-CMB business by described non-CMB sub-district access to wireless communication system.
The present invention increases a CMB sub-district of supporting the CMB business on the basis of original R99 sub-district, newly-increased CMB sub-district is used for carrying the CMB business specially, and the R99 sub-district is used for carrying non-CMB business.Can solve CMB business and the professional problem of mutual interference mutually of R99 like this.
In the specific implementation process, a CMB network can be formed in the CMB sub-district of all foundation, and a non-CMB network is formed in the non-CMB sub-district of all establishments, and the network coverage of described CMB sub-district and described non-CMB subzone network are overlapping.UE can't see each the non-CMB sub-district in the non-CMB subzone network in the network of CMB sub-district; Otherwise UE also can't see the CMB sub-district in the CMB network in non-CMB net.The switching of UE between CMB network and non-CMB net depends on fully whether the business of current foundation is the CMB business.
In the system provided by the invention, independent fully between CMB network and the non-CMB network, simultaneously, also need to satisfy following the requirement between two networks:
(1) the CMB sub-district can not be added to the alien frequencies adjacent area of non-CMB sub-district, and same, non-CMB sub-district can not be added to the alien frequencies adjacent area of CMB sub-district;
Only a kind of new CMB neighboring BS relationship between CMB sub-district and the non-CMB sub-district, this neighboring BS relationship does not embody in system message and special measurement, only be used to carry out the directed retry function between CMB sub-district and the non-CMB sub-district, when promptly in non-CMB sub-district, setting up the CMB business, will concern that DRD (directed retry) is to the CMB sub-district according to this; In the CMB sub-district, set up non-CMB when professional, will concern that DRD arrives non-CMB sub-district according to this.
(2) adopt the form of floored community to guarantee the smooth switching of UE between two networks between non-CMB network and the CMB network, the CMB sub-district covers identical zone with non-CMB sub-district, described floored community is a notion in the 3GPP agreement, be specially: the bigger sub-district of coverage is called macrocell, exists the less sub-district of some coverages to be called Microcell in its coverage simultaneously.
Describe below in conjunction with the specific implementation of accompanying drawing system of the present invention.As shown in Figure 1, the independent separately networking in CMB sub-district and non-CMB sub-district in Fig. 1:
Wherein, sub-district C1, it is bigger that the Sintrasearch of C2 (the co-frequency cell gravity treatment starts thresholding), Sintersearch (the alien-frequency district gravity treatment starts thresholding) dispose, it is smaller that Qoffset (sub-district gravity treatment biasing) disposes, like this, the easy gravity treatment of UE realizes the traffic absorption function to Microcell, make sub-district C1 and C2 that enough capacity be arranged, hold the user that directed retry is come.
As shown in Figure 1, dotted line top part is the CMB sub-district, and the following part of dotted line is non-CMB sub-district, and simultaneously, solid arrow line is in the drawings represented the directed retry process, and the dotted arrow line is expressed as the process that traffic absorbs; And in Fig. 1, two parts are division in logic about the dotted line, are not the division on the physical region, and for CMB sub-district and non-CMB sub-district, it can overlap each other on the physics overlay area.
In networking mode shown in Figure 1, when UE resides in non-CMB sub-district (Microcell or macrocell), and set up non-CMB when professional, because no matter UE is in system message or in special measurement, all can't see the CMB sub-district, therefore, UE can normally carry out non-CMB business, and can not select because gravity treatment causes carrying out non-CMB service fail to the CMB sub-district.
When UE resides in non-CMB sub-district (Microcell or macrocell), and set up CMB when professional, then will find that at RNC the type of service and the cell type of UE foundation are inconsistent, at this moment, will be according to the CMB neighboring BS relationship directed retry of preserving to the CMB macrocell, then absorb gravity treatment to the CMB Microcell by traffic, during the CMB service operation, no matter be in system message or in special measurement, all can't see non-CMB sub-district, therefore, UE can not be strayed into non-CMB sub-district and cause carrying out the CMB service fail.
In networking mode shown in Figure 1, when UE resides in CMB sub-district (Microcell or macrocell), and set up non-CMB when professional, then RNC will find the inconsistent situation of cell type, and can then absorb gravity treatment to non-CMB Microcell according to the directed retry of CMB neighboring BS relationship to non-CMB macrocell by traffic.
Based on the wireless communication system that the invention described above provides, the method for corresponding realization cell multicast service also is provided, concrete in the method processing comprises following several situation:
First kind of situation is, CMB user is arranged in the CMB sub-district, at this moment, CMB user is by in the access communications network of CMB sub-district, communication network then sends to CMB user with professional FACH (forward access channel) carrying by CMB sub-district correspondence of CMB, thereby makes CMB user can normally carry out the CMB business.
Second kind of situation is, CMB user is arranged in non-CMB sub-district, at this moment, for guaranteeing that CMB user carries out corresponding C MB business, at first need in communication network, be provided with and preserve the adjacent cell relation information of CMB sub-district and non-CMB sub-district, described neighboring BS relationship does not comprise frequency or alien frequencies neighboring BS relationship together, and only is the neighbouring relations information of CMB sub-district and non-CMB sub-district.Afterwards, when the CMB user in residing at non-CMB sub-district initiates to set up the CMB business, then determine the adjacent CMB sub-district that to insert according to the described adjacent cell relation information of preserving by non-CMB sub-district, and with this CMB user's directed retry in the CMB sub-district of determining, like this, the CMB user who is arranged in non-CMB sub-district can carry out the CMB business by corresponding C MB sub-district equally.
The third situation is, non-CMB user is in the CMB sub-district, at this moment, the present invention can guarantee that equally it normally carries out corresponding non-CMB business, concrete implementation method is: the non-CMB user in residing at the CMB sub-district initiates to set up non-CMB when professional, then determine adjacent non-CMB sub-district according to the described adjacent cell relation information of preserving (being the second kind of described adjacent cell relation information of situation in front) by the CMB sub-district, and should non-CMB user's directed retry in non-CMB sub-district, still can normally pass through non-CMB sub-district access network with the non-CMB user who guarantees to be in the CMB sub-district, and carry out corresponding non-CMB business.
In the method for the present invention, just the user in the receiving stream media service may become called user terminal at any time, at this moment, also needs it to call out with foundation between the call subscriber terminal and is connected, guarantee the reliable communication between the calling and called user terminal, this moment, the concrete processing method that adopts was:
When the user who carries out the CMB business receives beep-page message, set up corresponding RAB (RAB) and discharge the RAB of former CMB business according to the paging reason, after the professional RAB of CMB discharges, trigger the directed retry process under the RAB release scene, directed retry is to non-CMB macrocell, finally can absorb non-CMB Microcell by traffic, like this, this user terminal just can be realized the communication between the calling and called user terminal in non-CMB sub-district.
In the method for the present invention, usually when user terminal initiatively or passive end carrying out the CMB business time need discharge the CMB business, when the user who carries out the CMB business discharges the CMB business, need switch to dedicated channel DCH from FACH, and switch in the non-CMB sub-district by the directed retry process, so that user terminal is carried out other various communication services, promptly non-CMB business.
In sum, realization of the present invention makes and can serve the cost of (as the mobile TV function) with effective reduction user receiving stream media well for CMB user provides CMB business in wireless communication system.Simultaneously, the present invention can also effectively avoid in carrying out the CMB business procedure interference to other non-CMB business, thereby has improved the network performance of wireless communication system.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of wireless communication system of realizing cell multicast service is characterized in that, comprising:
Set up at least one cell multicast CMB sub-district in communication network, described CMB sub-district is used for carrying the CMB business of wireless communication system network, and the user who uses the CMB business is by carrying out the CMB business in the access to wireless communication system of described CMB sub-district.
2, the wireless communication system of realization cell multicast service according to claim 1 is characterized in that, described CMB cell configuration is macrocell or Microcell.
3, the wireless communication system of realization cell multicast service according to claim 1 and 2 is characterized in that, described system specifically comprises:
Set up CMB sub-district and non-CMB sub-district in the consolidated network coverage in communication network respectively, described CMB sub-district takies different frequency ranges respectively with non-CMB sub-district and commences business, described non-CMB sub-district is used to carry non-CMB business, uses the user of non-CMB business to carry out non-CMB business by described non-CMB sub-district access to wireless communication system.
4, the wireless communication system of realization cell multicast service according to claim 3 is characterized in that, described non-CMB cell configuration is macrocell or Microcell.
5, the wireless communication system of realization cell multicast service according to claim 3 is characterized in that, described non-CMB sub-district comprises: the point-to-point service sub-district.
6, a kind of method that realizes cell multicast service is characterized in that, comprising:
The user of A, use CMB business is by in the access communications network of CMB sub-district;
B, communication network send to the user with the forward access channel FACH carrying of CMB business by CMB sub-district correspondence.
7, the method for realization cell multicast service according to claim 6 is characterized in that, described method also comprises:
In communication network, be provided with and preserve the adjacent cell relation information of CMB sub-district and non-CMB sub-district, described neighboring BS relationship does not comprise with frequency or alien frequencies neighboring BS relationship, and, user in residing at non-CMB sub-district initiates to set up CMB when professional, then by non-CMB sub-district according to described adjacent cell relation information with this user's directed retry in the CMB sub-district.
8, the method for realization cell multicast service according to claim 7 is characterized in that, described method also comprises:
User in residing at the CMB sub-district initiates to set up non-CMB when professional, then by the CMB sub-district according to described adjacent cell relation information with this user's directed retry in non-CMB sub-district.
According to the method for claim 6,7 or 8 described realization cell multicast services, it is characterized in that 9, described method also comprises:
When the user who carries out the CMB business receives beep-page message, then when setting up the called service success, discharge the CMB business, and directed retry is in non-CMB sub-district.
According to the method for claim 6,7 or 8 described realization cell multicast services, it is characterized in that 10, described method also comprises:
When the user who carries out the CMB business discharges the CMB business, and when FACH switches to dedicated channel DCH, then switch in the non-CMB sub-district by the directed retry process.
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| CNB2005101176100A CN100389576C (en) | 2005-11-02 | 2005-11-02 | Wireless communication system and method for realizing cell multicast service |
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| CN100389576C CN100389576C (en) | 2008-05-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009644B (en) * | 2006-12-25 | 2011-03-30 | 华为技术有限公司 | A holding method for cross-Iur interface connection of the multicast service and DRNC |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1185817C (en) * | 2002-01-07 | 2005-01-19 | 华为技术有限公司 | Method of realizing the selection from paging channel and auxiliary common control physical channel |
| KR100827136B1 (en) * | 2002-05-17 | 2008-05-02 | 삼성전자주식회사 | Method for signaling connection assignment in a mobile communication system |
| CN1219372C (en) * | 2002-07-08 | 2005-09-14 | 华为技术有限公司 | Transmission method for implementing multimedia broadcast and multicast service |
| SE0300047D0 (en) * | 2003-01-08 | 2003-01-08 | Ericsson Telefon Ab L M | MBMS in UTRAN |
| US7269146B2 (en) * | 2003-10-20 | 2007-09-11 | Motorola Inc. | Method and apparatus for interchanging and processing mobile radio subsystem control information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101009644B (en) * | 2006-12-25 | 2011-03-30 | 华为技术有限公司 | A holding method for cross-Iur interface connection of the multicast service and DRNC |
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