CN1972464A - Method for implementing cell multicast service and networking method - Google Patents
Method for implementing cell multicast service and networking method Download PDFInfo
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- CN1972464A CN1972464A CN 200610157236 CN200610157236A CN1972464A CN 1972464 A CN1972464 A CN 1972464A CN 200610157236 CN200610157236 CN 200610157236 CN 200610157236 A CN200610157236 A CN 200610157236A CN 1972464 A CN1972464 A CN 1972464A
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Abstract
This invention relates to communication field and discloses one network forming method of sub area, which adopts form type with different frequency to support multiple areas CMB channel to solve bottle neck problems of only one frequency point and supplies user with more CMB channel. This invention also discloses one method to realize area play business and establishes RRC and RAB on special signal channel of DCH and interact signals of CMB businesses to improve CMB business interface speed.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and network-building method of realizing 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.The 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 multicast (Multimedia Broadcast Multicast Service, MBMS) 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 number of users that therefore 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 (auxiliary publish control physical channel) at present, be called cell multicast (Cell Multiple Broadcast, CMB) business, thus make and can in the product of WCDMA R99, R4 protocol version, provide broadcasting service.
CMB is a kind of service that business datum is broadcasted on the SCCPCH of sub-district, under this architecture, each sub-district can dispose many SCCPCH and carry the CMB channel, join a signaling FACH (forward access channel) and a professional FACH on every SCCPCH, signaling FACH user is carried user signaling radio bearer RB, and professional FACH is used to carry sub-district CMB channel.When the user need watch some CMB channels, land radio access web UTRAN will distribute corresponding URNTI sign and the user will be adjourned CELL_FACH (forward access channel) state for this user, make the user choose the SCCPCH of this CMB channel of carrying, and from professional FACH reception CMB channel data, the user just can watch the program of expectation as scheduled like this.
The CMB business can provide the video broadcasting business of a plurality of channels in the product of WCDMA R99, R4 protocol version.For the ease of difference, other business except that the CMB business are referred to as non-CMB business herein.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 to be referred to as non-CMB sub-district.
In the networking of supporting the CMB business, adopt CMB sub-district and non-CMB sub-district respectively to account for a frequency more and carry out the networking mode that alien frequencies covers at present.When the user initiated the CMB business, RNC (radio network controller) guiding user inserted the CMB sub-district; And when the user initiated other circuit commutative field CS or packet-switched domain PS business, RNC inserted non-CMB sub-district with it.Though the networking mode of prior art is simply clear, be easy to management, the CMB number of channels that sub-district can be supported is limited.Because different CMB channels need be based upon on the different SCCPCH, and the supported SCCPCH in sub-district limited (according to the assessment of practical application, a sub-district generally only disposes two CMB channels); And will take a large amount of power resources in sub-district after setting up many SCCPCH.Along with operator wishes to release more channel program, the networking mode that the CMB business only accounts for a frequency becomes the bottleneck that the CMB service is promoted.
Summary of the invention
In view of this, embodiments of the invention provide a kind of system and method for realizing cell multicast, and the networking mode that only accounts for a frequency in order to solution sub-district CMB business is served the bottleneck problem that popularization brings to CMB.
Embodiments of the invention provide following technical scheme:
A kind of network-building method of realizing cell multicast service,
In communication network, set up at least two CMB sub-districts, be used to carry the CMB business;
In described at least two CMB sub-districts, at least two CMB sub-districts are the same coverage cell of alien frequencies.
Set up at least one non-CMB sub-district in the communication network with in the same coverage in CMB sub-district, described non-CMB sub-district is used to carry non-CMB business; CMB sub-district in the described same coverage takies different frequencies respectively with non-CMB sub-district.
Be configured to the alien frequencies neighboring BS relationship mutually between the sub-district with the different carrier frequency that cover.
Between CMB sub-district and the non-CMB sub-district, between non-CMB sub-district and the CMB sub-district, support the sub-district gravity treatment biasing Qoffset between the same covering CMB sub-district of different channel set to be set to the maximum of the maximum of agreement regulation or the agreement that levels off to regulation.
Frequently be configured to changeable neighboring BS relationship mutually between the CMB sub-district together in the network system, and described with disposing identical CMB channel set frequently between the CMB sub-district.
The default value that support between the CMB sub-district of same program channel set, the Qoffset between the non-CMB sub-district is set to the agreement regulation.
A kind of method that realizes cell multicast service comprises following steps:
After network side is received the CMB service request of UE, set up radio resource control RRC and RAB RAB in this sub-district, finish the Signalling exchange that inserts the CMB business;
Network side is searched the CMB sub-district that whether has the target channel of supporting that UE selects at alien frequencies with covering in the CMB sub-district;
When having the CMB sub-district of supporting described target channel, network side sends to UE with the CMB business by forward access channel FACH carrying.
Network side is set up radio resource control RRC and RAB RAB on the dedicated channel DCH of UE current area, finish the Signalling exchange that inserts the CMB business.
When the CMB sub-district that does not have the target channel of supporting that UE selects, network side returns the unsupported information of this CMB channel to UE, discharges professional.
Network side sends to UE with the CMB business by forward access channel FACH carrying and specifically comprises:
When target CMB sub-district is this sub-district of UE, finish the radio bearer RB reprovision flow process that DCH changes FACH in this sub-district, network side sends to UE with the CMB business of target channel by forward access channel FACH carrying;
When target CMB sub-district is not this sub-district of UE, in the RB reprovision flow process of DCH commentaries on classics FACH, the user is switched to target CMB sub-district, network side sends to UE with the CMB business of target channel by forward access channel FACH carrying.
This shows, compare that the beneficial effect of the embodiment of the invention is as follows than prior art:
1, by adopting a plurality of CMB sub-district alien frequencies, not only solved the bottleneck problem of prior art areal CMB channel program, and can not cause excessive shock again local resource with the network-building method that covers.
2,, the user can be updated in the inhomogeneous sub-district in cell update go by different Qoffset values is set; And the user can carry out the sub-district gravity treatment at an easy rate in the sub-district of supporting current business in moving process, can reach the purpose of professional seamless link preferably.
3, when the user initiates the CMB business, owing on DCH, finish the foundation of RRC and RAB and the Signalling exchange of access CMB business, can improve the speed of service access, avoid the delay of long period.
Description of drawings
Fig. 1 realizes the embodiment schematic diagram of the network-building method of cell multicast service for the present invention.
Fig. 2 realizes the method first embodiment flow chart of cell multicast service for the present invention.
Fig. 3 realizes the method second embodiment flow chart of cell multicast service for the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer,, the specific embodiment of the present invention is described below in conjunction with the accompanying drawing embodiment that develops simultaneously.
Support a plurality of CMB program channels for solving areal, can not cause the problem of large impact simultaneously again to local resource, the present invention adopts a plurality of CMB sub-district alien frequencies with the network-building method that covers.Particularly, when a certain area needs the CMB program channel of support to surpass some, set up the alien frequencies of a plurality of different frequent points in this area and support the Polymera channel with covering the CMB sub-district.
On networking mode, different frequencies (adopting different carrier frequency in other words) is adopted with the CMB sub-district of supporting the different channel set in non-CMB sub-district, and adopts alien frequencies with the mode that covers between non-CMB sub-district and the CMB sub-district.As shown in Figure 1, frequency f1 is adopted in non-CMB sub-district (for convenience of description, among the figure be R99 sub-district with non-CMB cell ID), and frequency f2 is adopted in the CMB sub-district of support channel set 1, and frequency f3 is adopted in the CMB sub-district of support channel set 2.F1, f2, f3 different (more CMB channels of Zhi Chiing then can increase the more same coverage cell of CMB alien frequencies of multifrequency point in the same way if desired).Sub-district R99 Cell wherein
1(f1), CMB Cell
1(f2) and CMB Cell
1(f3) form with covering alien frequencies adjacent area, R99Cell
2(f1), CMB Cell
2(f2) and CMB Cell
2(f3) form with covering alien frequencies adjacent area, R99 Cell
3(f1), CMB Cell
3(f2) and CMB Cell
3(f3) form with covering the alien frequencies adjacent area; The channel set that the CMB cell configuration that carrier frequency is identical is identical and being configured to mutually simultaneously with changeable adjacent area frequently.Like this, when the user initiates when professional at the three unities, network can insert specific Serving cell with it according to type of service or selected channel; And when the user moved, network can switch to it again in the co-frequency cell of supporting identical services smoothly.
After the access of finishing the CMB business, user equipment (UE) will be in the CELL_FACH state, and at this moment the position of UE is moved and can be finished by the cell update flow process.For avoiding the interruption of UE multimedia broadcasting in moving process, need to limit UE when determining the Target cell of cell update, can only select to support the CMB sub-district of current program channel, and can gravity treatment to non-CMB sub-district or do not support the CMB sub-district of current program channel.
Concrete configuration comprises:
1) disposes all CMB sub-districts and all non-CMB sub-district equal back-up system block of information SIB3/SIB4, SIB11/SIB12;
2) among the configuration SIB12 with the CMB sub-district with between the non-CMB sub-district, non-CMB sub-district is with between the CMB sub-district and support that sub-district gravity treatment quality biasing Qoffset between the CMB sub-district of different channel set is an agreement maximum (can increase a fixed bias) or near the maximum of agreement regulation, like this, according to the R criterion of describing among the 3GPP TS25.304 (perhaps H criterion), the CMB user who is in the CELL_FACH state in the CMB sub-district can cell update to non-CMB sub-district or do not support the CMB sub-district of current program channel.The non-CMB user who is in CELL_FACH, CELL_PCH (cell paging channel) state in the non-CMB sub-district can cell update to the CMB sub-district.Need to prove that the concrete configuration of this Qoffset value can be specified according to the network planning, the value of Qoffset is big more to be meaned and is not easy gravity treatment more to non-CMB sub-district or do not support the CMB sub-district of current program channel.
3) Qoffset between the CMB sub-district according to the set of network planning configuration support same program channel, between the non-CMB sub-district is less value or is configured to default value (being configured to 0 usually), like this, according to the R criterion of describing among the 3GPP TS25.304 (perhaps H criterion), the CMB user who is in the CELL_FACH state in the CMB sub-district can easily carry out the sub-district gravity treatment between the CMB sub-district of supporting current program channel.The non-CMB user who is in CELL_FACH, CELL_PCH state in the non-CMB sub-district can easily carry out the sub-district gravity treatment between non-CMB sub-district.
Fig. 2 realizes the method first embodiment flow chart of cell multicast service for the present invention.
As shown in Figure 2, in step 201, UE initiates the CMB service request to network side.
In this step, UE initiates radio resource control RRC connection request message to the RNC of network side, and RNC is receiving this solicited message and determining that Client-initiated enters step 202 after being the CMB business.
In step 202, after network side is received the CMB service request of UE, on the dedicated transmission channel DCH of UE, set up RRC and RAB RAB, finish the Signalling exchange that inserts the CMB business.
In this step, RNC returns RRC to UE and sets up message, and RRC is based upon on the DCH.On this DCH, finish the foundation of RAB RAB and the Signalling exchange of access CMB business then.Because the access of CMB business also needs multiple messages after RAB foundation is finished mutual, the data volume of these message is bigger, if transmit on FACH, because bandwidth can not surpass 32K, setting up the CMB business will be slow; If but on DCH, because configurable bigger bandwidth, transmission of messages speed is just fast, therefore can improve the access speed of CMB business.
In step 203, network side is searched the CMB sub-district that whether has the target channel of supporting that UE selects at alien frequencies with covering in the CMB sub-district; When having the CMB sub-district of supporting described target channel, enter step 204; Otherwise, enter step 205.
Step 204: network side sends to UE with the CMB business by forward access channel FACH carrying;
In this step, network side switches to CELL_FACH (forward access channel) state with UE from CELL_DCH (dedicated channel) state, makes the CMB business send to UE by forward access channel FACH carrying.
Step 205: network side returns the unsupported information of this CMB channel to UE, discharges professional.
Fig. 3 realizes the method second embodiment flow chart of cell multicast service for the present invention.Idiographic flow is as shown in Figure 3:
Step 301:UE initiates the CMB service request to RNC.
In this step, RNC receives that the RRC of UE sets up request, determines that the reason that the user asks RRC to set up is to initiate the CMB business, enters step 302.
Step 302: on the DCH of current area, set up RRC and RAB, finish the Signalling exchange of CMB service access.
Then, enter step 303:RNC and obtain the target CMB channel that the user selects, search the CMB sub-district of supporting target channel,
In this step, RNC searches Target cell at alien frequencies in the CMB adjacent area that covers, if when this sub-district at UE place is the CMB sub-district, also comprises this sub-district.
Then, enter step 304: judge alien frequencies with whether the CMB sub-district of supporting target channel is arranged in the CMB adjacent area that covers, if can not find the CMB sub-district of supporting target channel then enter step 305; Otherwise, enter step 306.
Step 305: return the unsupported information of this CMB channel to UE, discharge related service.
Step 306: judge further whether target CMB sub-district is this sub-district, if then enter step 307; Otherwise, enter step 308.
Step 307: this sub-district is the CMB sub-district and supports the target channel that the user selects, then finishes the radio bearer RB reprovision flow process of DCH to FACH in this sub-district, UE receiving target channel multimedia broadcasting.
Step 308: in the RB reprovision flow process of DCH commentaries on classics FACH, UE is switched to target CMB sub-district, the CMB business of UE receiving target channel.
In this step, Target cell is that alien frequencies covers the CMB adjacent area together, fills in the frequency of Target cell and around sign indicating number, the user is switched on the common signal channel of Target cell the CMB business of UE receiving target channel behind the handover success in the RB reallocation message of DCH commentaries on classics FACH.
Under networking mode of the present invention, RNC can determine that when receiving the RRC connection request of UE Client-initiated is the professional also right and wrong CMB business of CMB, present access subzone is the CMB sub-district if the user need set up non-CMB business, can the sub-district be switched to alien frequencies with the non-CMB sub-district that covers by the directed retry DRD flow process of RRC.When the user need set up the CMB business, set up judgement and the DRD switching that process is not carried out Target cell at RRC, this is because under the networking mode of a plurality of alien frequencies CMB sub-district with covering, RNC only could obtain the target channel that the user selects after RAB foundation is finished, and then definite Target cell.Therefore, for improving professional access speed, even Client-initiated is the CMB business, it also is to finish on DCH that RRC and RAB set up process, after the Signalling exchange that inserts the CMB business is finished, again the user is switched to the CELL_FACH state from the CELL_DCH state, send the CMB business by the FACH carrying and use to the user.
Being preferred embodiment of the present invention only below, is not to be used to limit protection scope of 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 (10)
1, a kind of network-building method of realizing cell multicast service is characterized in that,
Set up at least two cell multicast CMB sub-districts in the communication network, be used to carry the CMB business;
In described at least two CMB sub-districts, at least two CMB sub-districts are the same coverage cell of alien frequencies.
2, the method for claim 1 is characterized in that,
Set up at least one non-CMB sub-district in the communication network with in the same coverage in CMB sub-district, described non-CMB sub-district is used to carry non-CMB business; CMB sub-district in the described same coverage takies different frequencies respectively with non-CMB sub-district.
3, method as claimed in claim 2 is characterized in that,
Be configured to the alien frequencies neighboring BS relationship mutually between the sub-district with the different carrier frequency that cover.
4, method as claimed in claim 3 is characterized in that,
Between CMB sub-district and the non-CMB sub-district, between non-CMB sub-district and the CMB sub-district, support the sub-district gravity treatment biasing Qoffset between the same covering CMB sub-district of different channel set to be set to the maximum of the maximum of agreement regulation or the agreement that levels off to regulation.
5, as any described method of claim 2 to 4, it is characterized in that,
Frequently be configured to changeable neighboring BS relationship mutually between the CMB sub-district together in the network system, and described with disposing identical CMB channel set frequently between the CMB sub-district.
6, method as claimed in claim 5 is characterized in that,
The default value that support between the CMB sub-district of same program channel set, the Qoffset between the non-CMB sub-district is set to the agreement regulation.
7, a kind of method that realizes cell multicast service is characterized in that, comprises following steps:
After network side is received the CMB service request of UE, set up radio resource control RRC and RAB RAB in this sub-district, finish the Signalling exchange that inserts the CMB business;
Network side is searched the CMB sub-district that whether has the target channel of supporting that UE selects at alien frequencies with covering in the CMB sub-district;
When having the CMB sub-district of supporting described target channel, network side sends to UE with the CMB business by forward access channel FACH carrying.
8, method as claimed in claim 7 is characterized in that,
Network side is set up radio resource control RRC and RAB RAB on the dedicated channel DCH of UE current area, finish the Signalling exchange that inserts the CMB business.
9, method as claimed in claim 7 is characterized in that, also comprises:
When the CMB sub-district that does not have the target channel of supporting that UE selects, network side returns the unsupported information of this CMB channel to UE, discharges professional.
As claim 7 or 8 described methods, it is characterized in that 10, network side sends to UE with the CMB business by forward access channel FACH carrying and specifically comprises:
When target CMB sub-district is this sub-district of UE, finish the radio bearer RB reprovision flow process that DCH changes FACH in this sub-district, network side sends to UE with the CMB business of target channel by forward access channel FACH carrying;
When target CMB sub-district is not this sub-district of UE, in the RB reprovision flow process of DCH commentaries on classics FACH, the user is switched to target CMB sub-district, network side sends to UE with the CMB business of target channel by forward access channel FACH carrying.
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| WO2023024704A1 (en) * | 2021-08-27 | 2023-03-02 | 华为技术有限公司 | Communication method and communication apparatus |
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| WO2023024704A1 (en) * | 2021-08-27 | 2023-03-02 | 华为技术有限公司 | Communication method and communication apparatus |
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Effective date of registration: 20211220 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |