CN1571531A - Method of reliable transmission of public control information in multimedia broadcasting and multicast service - Google Patents
Method of reliable transmission of public control information in multimedia broadcasting and multicast service Download PDFInfo
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- CN1571531A CN1571531A CN 03147648 CN03147648A CN1571531A CN 1571531 A CN1571531 A CN 1571531A CN 03147648 CN03147648 CN 03147648 CN 03147648 A CN03147648 A CN 03147648A CN 1571531 A CN1571531 A CN 1571531A
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Abstract
This invention is a method of ensuring common control message is transferred availably in media broadcasting and multicast business. The procedure is that all subscriber terminal equipments UE are informed to prepare for receiving common control message before the transmission of common control message. The message of which its number of replication is restricted is transferred on the common channel. The UE requests for building new special channel to network to transfer the common message if the message is not received correctly on the channel. The network build special channel for UE which asks for the channel. The message is transferred on the special channel said above by network. UE releases the special channel under the guiding of the network after the message is transferred. This invention reduces the repeated transmission frequency of the message on the channel and the load of the channel, adds the transmission capacity of the channel, and lightens the affection of special channel brought by the transmission of common channel.
Description
Technical field
The present invention relates to multimedia broadcasting and multicast service (hereinafter to be referred as MBMS), particularly relate to a kind of method that guarantees public control information reliable transmission among the MBMS.
Background technology
MBMS is formulating relevant criterion for it to carry out a standardized new business in the 3-G (Generation Three mobile communication system) partner program.The MBMS business is a kind of unidirectional point to the business of multipoint system (promptly broadcasting out multi-medium data from single data source is sent to a plurality of users through Network Transmission and receives).The maximum characteristics of this business are that it can effectively utilize Radio Resource and Internet resources.The MBMS business is mainly used in the wireless communication network system, as Wideband Code Division Multiple Access (WCDMA) communication system, global system for mobile communications etc.The transmission of business datum will be passed through basically among the MBMS: transmission in data source transmission, go-between transmission, the purpose cell null, user receive such plurality of processes.Fig. 1 is a wireless communication system logical network equipment drawing that the MBMS business can be provided, and in fact MBMS has utilized general grouped wireless data service (hereinafter to be referred as GPRS) network as core transport network in the figure.As shown in Figure 1, broadcasting and multicast service center (hereinafter to be referred as BM-SC) are the data sources that sends the MBMS business datum; Gateway GPRS Support Node (hereinafter to be referred as GGSN) is used for being connected of GRPS network and external network (as the INTERNET network); Gateway GPRS Support Node connects BM-SC and the MBMS data is sent to specific Serving GPRS Support Node (hereinafter to be referred as SGSN) in the MBMS business; CBC is the data source of Cell Broadcast CB, by with CBC and BM-SC interconnection, makes CBC that MBMS can be provided professional declaration function in MBMS; SGSN is used for that UE is carried out access control and mobile management and simultaneously the MBMS data of coming from GGSN is sent to specific radio-cell controller (hereinafter to be referred as RNC); RNC is used for controlling one group of base station and multi-medium data is sent to specific base stations; Aerial data transmission channel is set up for the MBMS business of certain sub-district in base station (hereinafter to be referred as Node-B) under the control of RNC; Subscriber terminal equipment (hereinafter to be referred as UE) is the terminal equipment that receives the MBMS data.
In a wireless communication network system, the information exchange between user and the network system will be finished through transmission channel.The MBMS business datum will be sent to the end user through suitable transmission channel equally.Transmission channel in the wireless communication network system generally has two types: dedicated channel that unique user occupies alone or the common channel of being shared by a plurality of users.Generally speaking, the transfer of data of point-to-point (i.e. the data of sending from a data source be sent to a user through Network Transmission receive) mode is finished by dedicated channel, and the transfer of data of putting multipoint system is finished by common channel.In the MBMS business, in order to effectively utilize Radio Resource and Internet resources, RNC can be according to the actual conditions in the sub-district, determine the type of the channel that should select for use.
The channel type that should select for use when generally, RNC determines to carry out the MBMS business data transmission in this sub-district according to the personnel's number that uses MBMS business of the same race in the sub-district.When the number of users of using MBMS business of the same race seldom the time, the MBMS channel type is point-to-point dedicated channel; When the number of users of this kind business surpassed certain threshold value, the MBMS channel type should be selected the common channel of point-to-multipoint.In addition, RNC also can according to other standards such as transmitting power of a sub-district determine the channel type that should select for use.
In the MBMS business,, also need to be transferred to the end user with professional some the relevant control informations of MBMS except the MBMS business datum need be transferred to the end user.These control informations can be divided into two classes: a class is relevant with an independent end user, such as the authentication information to an end user; But more control information is another kind of, promptly to a plurality of users' public control information, when preparing transmission such as business datum user's paging information, business datum is deciphered needed decryption information.
Be in the consideration that effectively utilizes Radio Resource and Internet resources equally, the transmission of the control information relevant with unique user adopts dedicated channel to transmit usually; The transmission of the public control information relevant with business adopts common channel to transmit.
The certain transmitting power of transmitting on the common channel in the general sub-district of Information Selection, to guarantee covering this sub-district substantially, just all user terminals in this cell range under normal circumstances can be received.And by contrast, at a specific user the transmitting power of dedicated channel can control variation with actual conditions; If user distance transmitting base station distance is distant,, can correspondingly increase at the transmitting power of this user's dedicated channel perhaps because the signal strength signal intensity that factors such as the residing particular location of user cause the user to receive when descending; And closer when user distance transmitting base station distance, perhaps because factors such as the residing particular location of user when causing signal strength signal intensity that the user receives relatively, also can decrease at the transmitting power of this user's dedicated channel.
Because the characteristic of transmission of wireless signals, in mobile communication system, total exist some received signals are bad even fully do not have the place of signal in general the sub-district in, and this also is the intrinsic characteristic of mobile communication system own.Simultaneously, because end user's mobility and independence, the end user may be in these places sometimes, and at this moment, these end users just can not correctly receive the professional public control information of the MBMS that transmits on common channel.In addition, because end user's independence, subscriber terminal equipment may be in some specific states sometimes, therefore can not correctly receive the professional public control information of the MBMS that transmits on common channel.
Usually, these public control informations can be adopted and repeatedly repeat the method transmitted on common channel, to reduce even to avoid the generation of this situation.But so just increased the message transmission on the just very busy originally common channel, brought extra load to system; Because common channel need guarantee certain through-put power, bring certain influence will for like this transmission of dedicated channel, thereby reduce the capacity of system simultaneously.In addition, same mobility and independence owing to the user, the user may still not receive these common informations.
Summary of the invention
Therefore, the purpose of this invention is to provide and a kind ofly effectively utilize Radio Resource and Internet resources, minimizing system load and, guarantee the transmission method of the reliable public control information of transmission simultaneously again the influence of system.
For achieving the above object, guarantee the method for public control information reliable transmission in a kind of multimedia broadcasting and the multicast service, comprise step:
1) before the transmission of the public control information of beginning, notify all subscriber terminal equipment UE to prepare to receive public control information;
2) carry out the limited public control information transmission of number of repetition on the common channel;
3) if correctly do not receive public control information on common channel, subscriber terminal equipment UE is set up the transmission that dedicated channel is carried out public control information to network requests;
4) network is set up dedicated channel for sending requesting users terminal equipment UE;
5) network carries out the transmission of public control information on above-mentioned dedicated channel;
6) after the transmission of having finished public control information, network guides user terminal equipment UE discharges above-mentioned dedicated channel.
The present invention reduces the iterative transfer times of public control information on the common channel, reduces the load of common channel, increases the transmission capacity of common channel; Alleviated the influence of the transmission of common channel, increased the capacity of system individual dedicated channel.Alleviate or avoided having improved the reliability of public control information reception because the user that user's mobility and independence institute may cause does not receive the public control information of MBMS.
Description of drawings
Fig. 1 is the wireless communication system logical network equipment drawing of MBMS business;
Fig. 2 has demonstrated the workflow diagram of BMSC of the renewal process of the MBMS business datum decryption key of using one embodiment of the present of invention;
Fig. 3 is the workflow diagram with Fig. 2 corresponding user terminal equipment UE;
Fig. 4 is a workflow diagram of having demonstrated the RNC of the MBMS service parameter notification procedure of having used two embodiment of the present invention;
Fig. 5 is the workflow diagram of the UE corresponding with Fig. 4.
Embodiment
The present invention relates to effectively utilizing Radio Resource and Internet resources, minimizing system load and, guaranteeing the transmission method of the reliable public control information of transmission simultaneously again of a kind of MBMS of being applicable to business to the influence of system; In fact, it repeats to transmit the number of times of public control information on common channel by suitable minimizing; Thereby the subscriber terminal equipment UE that does not correctly receive these public control informations by request use can carry out power control more reliably the dedicated channel mode that receives these public control informations reach and effectively utilize Radio Resource and Internet resources, minimizing system load and, guarantee the purpose of the reliable public control information of transmission simultaneously again the influence of system.With reference to appended drawing, two embodiment of the present invention have been provided below.Too tediously long for fear of the description that makes this patent, in the following description, omitted the detailed description of function that the public is known or device etc.
First embodiment
Fig. 2 has demonstrated the workflow diagram of BMSC of the renewal process of the MBMS business datum decryption key of having used one embodiment of the present of invention.Fig. 3 is the workflow diagram with Fig. 2 corresponding user terminal equipment UE.In this embodiment, the prior both sides' agreement of BMSC and subscriber terminal equipment UE is decrypted the renewal of secret key every certain cycle.
201.BMSC among above-mentioned Fig. 2 has judged whether be decrypted the moment that secret key is upgraded.If arrived the moment of agreement, BMSC carries out process 202.Otherwise BMSC waits for and proceeds process 201.
202.BMSC among above-mentioned Fig. 2 starts timer, and the transmission by the business datum decryption key of RNC after upgrading on the common channel.
203.BMSC among above-mentioned Fig. 2 judges whether to continue to wait for that according to the timer in the journey 202 is whether out-of-date reception may be from the request of the transmit traffic data decryption key of subscriber terminal equipment UE.Before timer is out-of-date, BMSC implementation 204; If timer is out-of-date, BMSC returns implementation 201.
If 204. among above-mentioned Fig. 2 has subscriber terminal equipment UE request transmit traffic data decryption key, the BMSC implementation 205 so; Otherwise BMSC returns and proceeds process 203.
205.BMSC among above-mentioned Fig. 2 instructs described UE to set up the channel of this UE special use by RNC.
206.BMSC among above-mentioned Fig. 2 is by the transmission of the business datum decryption key of RNC after upgrading on the dedicated channel that said process is set up.After transmission course was finished, RNC guides user terminal equipment UE discharged the dedicated channel in the said process, and BMSC returns implementation 203.
301.UE among above-mentioned Fig. 3 has judged whether be decrypted the moment that secret key is upgraded.If arrived the moment of agreement, UE carries out process 302.Otherwise UE waits for and proceeds process 301.
302.UE among above-mentioned Fig. 3 attempts receiving the business datum decryption key of transmitting on the common channel.
If the UE in above-mentioned 302 processes of 303. among above-mentioned Fig. 3 can correctly receive, UE returns implementation 301 so.Otherwise, continue implementation 304.
304.UE among above-mentioned Fig. 3 asks the transmit traffic data decryption key by RNC to BMSC.
305.UE among above-mentioned Fig. 3 sets up special-purpose channel under the guidance of RNC.
306.UE among above-mentioned Fig. 3 receives the business datum decryption key from BMSC on above-mentioned channel.
307.UE among above-mentioned Fig. 3 discharges the dedicated channel in the said process under the guidance of RNC after having finished said process.After finishing, UE returns implementation 301.
Second embodiment
Fig. 4 has demonstrated the workflow diagram of the RNC of the MBMS service parameter notification procedure of having used two embodiment of the present invention.Fig. 5 is the workflow diagram of the UE corresponding with Fig. 4.In this embodiment, it is paroxysmal notifying from the service parameter of RNC, and just UE can't know in advance when RNC provides this service parameter notice.
401.RNC decision carrying out service parameter notice among above-mentioned Fig. 4.
402.RNC among above-mentioned Fig. 4 starts timer, and in the transmission of the enterprising industry affair of common channel parameter.
403.RNC among above-mentioned Fig. 4 judges whether to continue to wait for that according to the timer in the journey 402 is whether out-of-date reception may be from the request of the transport service parameter of UE.Before timer is out-of-date, RNC implementation 404; If timer is out-of-date, RNC finishes this notification procedure.
If 404. among above-mentioned Fig. 4 has UE request transport service parameter, the RNC implementation 405 so; Otherwise RNC waits for and proceeds process 403.
405.RNC among above-mentioned Fig. 4 instructs this subscriber terminal equipment to set up the channel of this subscriber terminal equipment special use.
406.RNC among above-mentioned Fig. 4 is in the transmission of the enterprising industry affair of above-mentioned dedicated channel parameter.
Among above-mentioned Fig. 4 407. is after transmission course is finished, and RNC guides user terminal equipment UE discharges above-mentioned dedicated channel.After finishing, RNC returns implementation 403.
501.UE among above-mentioned Fig. 5 periodically monitors common channel.
502.UE among above-mentioned Fig. 5 judges the information that whether has oneself to need on the common channel.If its information that needs is arranged, UE carries out process 503.Otherwise UE waits for and proceeds process 501.
503.UE among above-mentioned Fig. 5 attempts receiving the service parameter that transmits on the common channel.If can correctly receive, UE returns implementation 501 so.Otherwise, continue implementation 504.
504.UE among above-mentioned Fig. 5 is to RNC request transport service parameter.
505.UE among above-mentioned Fig. 5 sets up special-purpose channel under the guidance of RNC.
506.UE among above-mentioned Fig. 5 receives the service parameter from RNC on above-mentioned channel.
507.UE among above-mentioned Fig. 5 discharges the dedicated channel in the said process under the guidance of RNC after having finished said process.After finishing, UE returns implementation 501.
Claims (4)
1. the transmission method of the public control information in multimedia broadcasting and the multicast service is characterized in that comprising step:
A) before the transmission of the public control information of beginning, notify all subscriber terminal equipment UE to prepare to receive public control information;
B) on common channel, carry out the limited public control information transmission of number of repetition;
C) if correctly do not receive public control information on common channel, subscriber terminal equipment UE is set up the transmission that dedicated channel is carried out public control information to network requests;
D) network is set up dedicated channel for sending requesting users terminal equipment UE;
E) network carries out the transmission of public control information on above-mentioned dedicated channel;
F) after the transmission of having finished public control information, network guides user terminal equipment UE discharges above-mentioned dedicated channel.
2. by the described transmission method of claim 1, it is characterized in that network and the prior both sides' agreement of subscriber terminal equipment UE in the step a) in the transmission that begins public control information sometime.
3. by the described transmission method of claim 1, it is characterized in that network in the step a) begins the reception of public control information by the mode informing user terminal equipment UE of MBMS paging.
4. by the described transmission method of claim 1, it is characterized in that subscriber terminal equipment UE in the step a) judges the public control information whether oneself needs is arranged on the common channel by periodic monitoring common channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03147648 CN1571531A (en) | 2003-07-15 | 2003-07-15 | Method of reliable transmission of public control information in multimedia broadcasting and multicast service |
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| CN 03147648 CN1571531A (en) | 2003-07-15 | 2003-07-15 | Method of reliable transmission of public control information in multimedia broadcasting and multicast service |
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| WO2006094455A1 (en) * | 2005-03-07 | 2006-09-14 | Huawei Technologies Co., Ltd. | Method for frequency layer dispersal of ue in the multimedia broadcast/multicast service |
| WO2007033585A1 (en) * | 2005-09-20 | 2007-03-29 | Huawei Technologies Co., Ltd. | A transmitting and receiving method, system and receiving apparatus for broadcast/multicast service control message |
| CN100450280C (en) * | 2005-03-30 | 2009-01-07 | 华为技术有限公司 | Method for user equipment releasing P-T-M wireless loading |
| CN101072167B (en) * | 2006-05-12 | 2010-08-11 | 美国博通公司 | Method and system for transmitting information through communication system |
| US8014264B2 (en) | 2004-05-01 | 2011-09-06 | Neocific, Inc. | Methods and apparatus for communication with time-division duplexing |
| CN1969475B (en) * | 2005-03-25 | 2012-07-04 | 桥扬科技有限公司 | Methods and apparatus for cellular broadcasting and communication system |
| US11483832B1 (en) | 2010-09-28 | 2022-10-25 | Neo Wireless Llc | Methods and apparatus for flexible use of frequency bands |
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| US8724443B2 (en) | 2004-05-01 | 2014-05-13 | Neocific, Inc. | Methods and apparatus for subframe configuration and generation in a multi-carrier communication system |
| US11503588B2 (en) | 2004-05-01 | 2022-11-15 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Methods and apparatus for subframe configuration and generation in a multi-carrier communication system |
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| US8014264B2 (en) | 2004-05-01 | 2011-09-06 | Neocific, Inc. | Methods and apparatus for communication with time-division duplexing |
| WO2006094455A1 (en) * | 2005-03-07 | 2006-09-14 | Huawei Technologies Co., Ltd. | Method for frequency layer dispersal of ue in the multimedia broadcast/multicast service |
| US11283640B2 (en) | 2005-03-25 | 2022-03-22 | Neo Wireless Llc | Bitmap based resource scheduling in a wireless network |
| CN1969475B (en) * | 2005-03-25 | 2012-07-04 | 桥扬科技有限公司 | Methods and apparatus for cellular broadcasting and communication system |
| US10931469B2 (en) | 2005-03-25 | 2021-02-23 | Neo Wireless Llc | Methods and apparatus for cellular broadcasting and communication system |
| US11115229B2 (en) | 2005-03-25 | 2021-09-07 | Neo Wireless Llc | Method and apparatus for periodic and polled channel quality feedback |
| US11296900B2 (en) | 2005-03-25 | 2022-04-05 | Neo Wireless Llc | Broadcast signal indicating one or more subframe configurations |
| US11658838B2 (en) | 2005-03-25 | 2023-05-23 | Neo Wireless Llc | Broadcast signal indicating one or more subframe configurations |
| CN100450280C (en) * | 2005-03-30 | 2009-01-07 | 华为技术有限公司 | Method for user equipment releasing P-T-M wireless loading |
| CN100450296C (en) * | 2005-09-20 | 2009-01-07 | 华为技术有限公司 | Broadcasting/multicast business control information transmission method |
| WO2007033585A1 (en) * | 2005-09-20 | 2007-03-29 | Huawei Technologies Co., Ltd. | A transmitting and receiving method, system and receiving apparatus for broadcast/multicast service control message |
| CN101072167B (en) * | 2006-05-12 | 2010-08-11 | 美国博通公司 | Method and system for transmitting information through communication system |
| US11483832B1 (en) | 2010-09-28 | 2022-10-25 | Neo Wireless Llc | Methods and apparatus for flexible use of frequency bands |
| US11510202B2 (en) | 2010-09-28 | 2022-11-22 | Neo Wireless Llc | Methods and apparatus for flexible use of frequency bands |
| US11510201B2 (en) | 2010-09-28 | 2022-11-22 | Neo Wireless Llc | Methods and apparatus for flexible use of frequency bands |
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