CN101262631B - Resource allocation method for multimedia broadcast and multicast service - Google Patents
Resource allocation method for multimedia broadcast and multicast service Download PDFInfo
- Publication number
- CN101262631B CN101262631B CN2007100859778A CN200710085977A CN101262631B CN 101262631 B CN101262631 B CN 101262631B CN 2007100859778 A CN2007100859778 A CN 2007100859778A CN 200710085977 A CN200710085977 A CN 200710085977A CN 101262631 B CN101262631 B CN 101262631B
- Authority
- CN
- China
- Prior art keywords
- time slot
- frequency
- multicast service
- multimedia broadcast
- reservation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a distribution method of MBMS resources. The method comprises the steps of S102 that one or more frequency points are reserved for a specific cell and all or part of the time slots of the reserved frequency points are reserved for multiple MBMS; S104 that the reserved frequency point is provided with the distribution priority level of default frequency points and the reserved time slot is provided with the distribution priority level of default time slots; Sd106 that the effective reserved frequency points which meet a first presetting condition are selected from the reserved frequency points and the effective reserved time slots which meet a second presetting condition are selected from the reserved time slots of the effective reserved frequency points; S108 that whether a third preset condition is met by the effective reserved time slot and that if the third preset condition is met, the effective reserved time slot is determined to be a set time slot; S110 that the effective reserved frequency points corresponding to the set time slot are determined as the set frequency points, and the set frequency points and the set time slots are distributed to the multiple MBMS.
Description
Technical field
The present invention relates to that multi-carrier frequency cell is multimedia broadcast-multicast service (Multimedia Broadcast/Multicast Service in the wireless communication field, MBMS) method of Resources allocation, relate in particular to the resource allocation methods of the MBMS business in TD SDMA access (Time Division SynchronousCode Division Multiple Access, TD-SCDMA) system.
Background technology
In order to satisfy the ever-increasing demand of Mobile Communications Market, the power system capacity that improves hot zones covers, and has proposed the concept of TD-SCDMA multi-carrier frequency cell.The TD-SCDMA multi-carrier frequency cell is that a plurality of residential quarters of identical geographical coverage area (each carrier frequency is a residential quarter) is merged together, and shares same set of common channel resources, thereby consists of a multi-carrier frequency cell.
In actual networking, use multi-carrier frequency cell, not only reduced complexity at RRM, and the main carrier frequency of neighbor cell is configured on the different frequencies, so not only can effectively reduce the interference of pilot channel and common signal channel, but also can effectively reduce requirement to base station transmitter power, thereby can guarantee to carry out networking in mode more flexibly.
At present, along with the commercialization of 3-G (Generation Three mobile communication system), mobile TV service (MobileTV) more and more receives the concern of operator.In the TD-SCDMA system, provide the MBMS business also to become active demand.Organize 3GPP to the agreement of MBMS business according to global standards, the MBMS business is at UTRAN (Universal Terrestrial Radio AccessNetwork, universal land radio access web) and UE (User Equipment, subscriber equipment) transmission has dual mode between, namely, PTM (Point-to-Multipoint, point-to-multipoint) mode and PTP (Point-to-Point, point-to-point) mode.Wherein, the PTM mode is used common logical MTCH (MBMS PTM Traffic Channe1, the point-to-multipoint service channel) all are added multicast service or the interested UE of broadcasting service is sent data, the PTP mode then uses dedicated logical channel DTCH that single UE is sent business datum.When adding multicast service or when larger to the interested UE number of broadcasting service, using the PTM mode can effectively utilize wireless network resource undoubtedly, cut operating costs widely.
Can there be serious co-channel interference when in the TD-SCDMA multi-carrier frequency system, providing MBMS professional.Logic channel MTCH under the MBMS PTM mode is mapped to transmission channel FACH, and finally is carried on SCCPCH (Secondary Common Control Physical Channel).Public physic channel SCCPCH uses omni-directional antenna transmission.Simultaneously, the MBMS business is mobile TV service normally, takies many code channels.Like this, when using whole days to carry out continuous coverings of MBMS business to the SCCPCH channel of antenna transmission in many residential quarters, can cause serious minizone co-channel interference, cause service quality to can not get guarantee.
The problem of co-channel interference of minizone has proposed single frequency network (SFN) scheme when solving identical networking.It requires all residential quarters to use same carrier, time slot, channel code, scrambler and basic training sequences code (midamble code) to send the wireless signal of identical MBMS business channels.Under the SFN pattern, UE can be considered as multipath channel with the signal from different base station, so that can obtain larger performance gain aspect the receiving broadcast service signal, has improved the service quality of MBMS business.Therefore, the SFN scheme can improve the broadcasting service availability of frequency spectrum, and the realization of UE side is also comparatively simple simultaneously.
Yet how to carry out allocation of radio resources for the MBMS business under the SFN pattern is the new problem that the SFN technology is brought, and for this problem, does not also have up till now a kind of effectively solution.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of resource allocation methods of multimedia broadcast-multicast service, to solve the cell radio resource problem of management.The method is particularly useful for the single frequency network pattern.
A kind of resource allocation methods of multimedia broadcast-multicast service is provided according to one embodiment of present invention.
The method may further comprise the steps: step S102, specific cell is reserved one or more frequencies, and all or part of time slot that will reserve frequency is kept for multimedia broadcast-multicast service; Step S104 is the default frequency point allocation priority of reservation frequency point setting, and for reserving time slot default time slot allocation priority is set; Step S106, effective reservation frequency of screening first predetermined condition from reserve frequency, and effective reservation time slot of second predetermined condition in the reservation time slot of frequency is effectively reserved in screening, wherein, the first predetermined condition be the surplus resources unit number of current frequency more than or equal to the required Resource Unit number of given multimedia broadcast-multicast service, the second predetermined condition is
RU is Resource Unit; Step S108, for effective reservation time slot, judge whether to satisfy the 3rd predetermined condition, and in situation about satisfying, to effectively reserve time slot as selected time slot, wherein, the 3rd predetermined condition is time slot surplus resources unit number or adds up time slot surplus resources unit number more than or equal to the required Resource Unit number of given multimedia broadcast-multicast service; And step S110, will selected time slot corresponding effective reservation frequency is as selected frequency, and will select frequency and selected time slot allocation to multimedia broadcast-multicast service.
Wherein, before step S102, be multimedia broadcast-multicast service distribution service numbering, and be that the cell allocation in the zone that multimedia broadcast-multicast service covers numbers corresponding zone number with professional, like this, in step S102, specific cell is the one or more residential quarters corresponding to the same area numbering.
In step S106, when screening is effectively reserved frequency, carry out one by one according to the order of frequency point allocation priority.In addition, in step S106, in the situation that has a plurality of effective reservation frequencies, according to the frequency point allocation priority of effective reservation frequency, effectively reserve one by one the screening of time slot.
Wherein, in step S106, in the situation that has a plurality of effective reservation time slots, can carry out prioritization by predefined procedure to a plurality of effective reservation time slots, wherein, predefined procedure can be following any: time slot allocation priority, residue code channel number, average residual code channel power.
In addition, in step S108, in the situation that has a plurality of effective reservation time slots, judge whether one by one to satisfy the 3rd predetermined condition according to the order of time slot allocation priority.
In addition, in the situation that has traveled through all frequencies, when in step S108, not obtaining selected time slot, return the distribution failed message.
By technique scheme of the present invention, can dynamically reserve the resource from the residential quarter and distribute the required Radio Resources such as frequency, time slot and channel code for multimedia broadcast-multicast service.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the resource allocation methods of the multimedia broadcast-multicast service of the embodiment of the invention; And
Fig. 2 is the detail flowchart according to the multimedia broadcast multicast service resource distribution method processing example in actual applications of the embodiment of the invention.
Embodiment
Describe below with reference to accompanying drawings embodiments of the invention in detail.
The resource allocation methods of a kind of multimedia broadcast-multicast service (MBMS) is provided in the present embodiment.
As shown in Figure 1, may further comprise the steps according to the resource allocation methods of the MBMS of present embodiment: step S102, specific cell is reserved one or more frequencies, and all or part of time slot that will reserve frequency is kept for MBMS; Step S104 is the default frequency point allocation priority of reservation frequency point setting, and for reserving time slot default time slot allocation priority is set; Step S106, effective reservation frequency of screening first predetermined condition from reserve frequency, and screen effective reservation time slot of second predetermined condition in the reservation time slot of effectively reserving frequency; Step S108 for effective reservation time slot, judges whether to satisfy the 3rd predetermined condition, and in situation about satisfying, will effectively reserve time slot as selected time slot; And step S110, will selected time slot corresponding effective reservation frequency is as selected frequency, and will select frequency and selected time slot allocation to MBMS.
Wherein, before step S102, preferably, can be that a MBMS distributes a professional numbering, the zone number of cell allocation that covers for this MBMS.Physical resource situation according to real cell, the MBMS business of given area numbering and professional numbering is carried out the preparation of MBMS Radio Resource, wherein, the content of distribution can comprise frequency point information, gap information, channelization code information, scrambling code information and basic midamble code information etc.Based on this, in step S102, specific cell is the one or more residential quarters corresponding to the same area numbering.
In step S106, the first predetermined condition is that residue basic resource unit number is more than or equal to the required Resource Unit number of given MBMS.In addition, in step S106, when screening is effectively reserved frequency, carry out one by one according to the order of frequency point allocation priority; Obtaining in the situation of a plurality of effective reservation frequencies through screening, according to the frequency point allocation priority of effective reservation frequency, effectively reserve one by one the screening of time slot again.
In step S106, the second predetermined condition is
In addition, in step S106, in the situation that has a plurality of effective reservation time slots, preferably, can carry out prioritization by predefined procedure to a plurality of effective reservation time slots, alternatively, the predefined procedure of ordering can be following any: time slot allocation priority, residue code channel number, average residual code channel power.
In step S108, in the situation that has a plurality of effective reservation time slots, order according to time slot allocation priority judges whether to satisfy the 3rd predetermined condition one by one, wherein, the 3rd predetermined condition is that time slot surplus resources unit number or accumulative total time slot surplus resources unit number are more than or equal to the required Resource Unit number of given MBMS.
Based on the treatment step of described method according to present embodiment before, the below describes the in actual applications processing procedure of the method in detail with reference to Fig. 2.
As shown in Figure 2, the method specifically can may further comprise the steps:
Step 201, one or several frequency is reserved (namely in all residential quarters to given area numbering and professional numbering, above-mentioned reservation frequency), keep for MBMS professional (namely all or part time slot of these frequencies, above-mentioned reservation time slot), here, preferably, can set the set of reserving frequency is F:(f1, f2, f3, ..., fn), wherein, each frequency in this set is gathered TS1 with reservation time slot separately again, TS2, TS3, ... TSn etc., and above-mentioned effective reservation time slot set VTS and the S set TS of selected time slot are set, when initial, VTS and STS are set to sky;
Step 202, for the element among the frequency point sets F arranges default frequency point allocation priority, and for time slot set TS1, TS2, TS3 ... TSn arranges default time slot allocation priority, and chooses the highest frequency of priority among the set F as current frequency fm;
Step 203, MBMS for given area numbering and professional numbering, whether surplus resources unit (RU) number of judging current frequency fm is more than or equal to the required RU number of the MBMS of given area numbering and professional numbering (namely, judge whether to satisfy the first above-mentioned predetermined condition), if (current frequency fm is above-mentioned effective reservation frequency), then execution in step 204, otherwise execution in step 207;
Step 204 filters out from the reservation time slot of current frequency fm set TSm and satisfies condition:
(namely, second predetermined condition) time slot, these time slots are formed set VTS, as mentioned above, according to time slot allocation priority, residue code channel number, average residual code channel power it is carried out prioritization, and from set VTS, choose the highest time slot of limit priority as current time slots tsn, if set VTS is empty, that is, do not have the time slot of second predetermined condition, then execution in step 207;
Step 205, current time slots tsn is put into S set TS, make URU=current time slots residue RU number, and judge that whether URU is more than or equal to the required RU number of business (that is, above-mentioned the 3rd predetermined condition), if (namely, current time slots tsn is selected time slot, its corresponding frequency is selected frequency), then execution in step 208, otherwise execution in step 206;
Step 206, select the inferior high time slot of set VTS medium priority as current time slots tsn, put it among the S set TS, and the residue RU number of current time slots is added on the URU, namely, satisfy equation: URU=URU+ current time slots residue RU number, and judge whether to satisfy above-mentioned the 3rd predetermined condition (URU 〉=professional required RU number), if satisfy, then execution in step 208, otherwise execution in step 206 again, can not satisfy all the time the 3rd predetermined condition if traveled through time slots all among the VTS, and then execution in step 207;
Step 207, choose time high frequency of set F medium priority as current frequency fm and repeated execution of steps 203 to step 206, be not allocated successfully all the time if traveled through all frequencies among the set F, then return the distribution failure information; And
Step 208, all residential quarters that the given area is numbered are the MBMS distribution frequency fm of given professional numbering and the time slot among the STS, and the corresponding channel code of the time slot allocation among the pair set STS.
In sum, by technical scheme of the present invention, can dynamically reserve the resource from the residential quarter and distribute the required Radio Resources such as frequency, time slot and channel code for MBMS.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the resource allocation methods of a multimedia broadcast-multicast service is characterized in that, comprising:
Step S102 reserves one or more frequencies to specific cell, and all or part of time slot that will reserve frequency is kept for multimedia broadcast-multicast service;
Step S104 is the default frequency point allocation priority of described reservation frequency point setting, and for reserving time slot default time slot allocation priority is set;
Step S106, effective reservation frequency of screening first predetermined condition from described reservation frequency, and screen effective reservation time slot of second predetermined condition in the reservation time slot of described effective reservation frequency, wherein, the surplus resources unit number that described the first predetermined condition is current frequency is more than or equal to the required Resource Unit number of given multimedia broadcast-multicast service, and described the second predetermined condition is
RU is Resource Unit;
Step S108, for described effective reservation time slot, judge whether to satisfy the 3rd predetermined condition, and in situation about satisfying, with described effective reservation time slot as selected time slot, wherein, described the 3rd predetermined condition is time slot surplus resources unit number or adds up time slot surplus resources unit number more than or equal to the required Resource Unit number of given multimedia broadcast-multicast service; And
Step S110, described effective reservation frequency that described selected time slot is corresponding be as selected frequency, and give described multimedia broadcast-multicast service with described selected frequency and described selected time slot allocation.
2. the resource allocation methods of multimedia broadcast-multicast service according to claim 1, it is characterized in that, before described step S102, be described multimedia broadcast-multicast service distribution service numbering, be the cell allocation in the zone of described multimedia broadcast-multicast service covering and the described professional corresponding zone number of numbering, in described step S102, described specific cell is the one or more residential quarters corresponding to the same area numbering.
3. the resource allocation methods of multimedia broadcast-multicast service according to claim 1 is characterized in that, in described step S106, when the described effective reservation frequency of screening, carries out one by one according to the order of described frequency point allocation priority.
4. the resource allocation methods of multimedia broadcast-multicast service according to claim 1, it is characterized in that, in described step S106, in the situation that has a plurality of described effective reservation frequencies, according to the described frequency point allocation priority of described effective reservation frequency, carry out one by one the screening of described effective reservation time slot.
5. the resource allocation methods of multimedia broadcast-multicast service according to claim 4, it is characterized in that, in described step S106, in the situation that has a plurality of described effective reservation time slots, described a plurality of effective reservation time slots are carried out prioritization by predefined procedure, wherein, described predefined procedure be following any: described time slot allocation priority, residue code channel number, average residual code channel power.
6. the resource allocation methods of multimedia broadcast-multicast service according to claim 1, it is characterized in that, in described step S108, in the situation that has a plurality of described effective reservation time slots, judge whether one by one to satisfy described the 3rd predetermined condition according to the order of described time slot allocation priority.
7. the resource allocation methods of each described multimedia broadcast-multicast service in 6 according to claim 1, it is characterized in that, in the situation that has traveled through all described reservation frequencies, when in described step S108, not obtaining described selected time slot, return the distribution failed message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100859778A CN101262631B (en) | 2007-03-06 | 2007-03-06 | Resource allocation method for multimedia broadcast and multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100859778A CN101262631B (en) | 2007-03-06 | 2007-03-06 | Resource allocation method for multimedia broadcast and multicast service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101262631A CN101262631A (en) | 2008-09-10 |
| CN101262631B true CN101262631B (en) | 2013-01-16 |
Family
ID=39962787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100859778A Expired - Fee Related CN101262631B (en) | 2007-03-06 | 2007-03-06 | Resource allocation method for multimedia broadcast and multicast service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101262631B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103188798B (en) * | 2011-12-28 | 2015-09-16 | 鼎桥通信技术有限公司 | Anti-interference method in a kind of communication system and device |
| CN107113823B (en) | 2015-07-10 | 2020-04-28 | 华为技术有限公司 | Channel access period allocation method, device and system |
| CN106851747B (en) * | 2015-12-03 | 2022-04-22 | 中兴通讯股份有限公司 | Dynamic resource allocation method and device in mobile communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245623A (en) * | 1996-11-25 | 2000-02-23 | 艾利森电话股份有限公司 | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
| DE10314159A1 (en) * | 2003-03-28 | 2004-10-28 | Siemens Ag | Method for multimedia-broadcast-multicast services (MBMS) data transmission by time slot multiple access in downwards path from base station to subscribers of radio communication system |
| WO2005101738A1 (en) * | 2004-04-15 | 2005-10-27 | Koninklijke Philips Electronics N.V. | Allocation of access slots to mobile stations in order to count the number of stations interested in a mbms (multimedia broadcast / multicast service) |
| WO2005122425A2 (en) * | 2004-06-04 | 2005-12-22 | Qualcomm Incorporated | Multiplexing of w-cdma and ofdm signals in a wireless communication system |
-
2007
- 2007-03-06 CN CN2007100859778A patent/CN101262631B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245623A (en) * | 1996-11-25 | 2000-02-23 | 艾利森电话股份有限公司 | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
| DE10314159A1 (en) * | 2003-03-28 | 2004-10-28 | Siemens Ag | Method for multimedia-broadcast-multicast services (MBMS) data transmission by time slot multiple access in downwards path from base station to subscribers of radio communication system |
| WO2005101738A1 (en) * | 2004-04-15 | 2005-10-27 | Koninklijke Philips Electronics N.V. | Allocation of access slots to mobile stations in order to count the number of stations interested in a mbms (multimedia broadcast / multicast service) |
| WO2005122425A2 (en) * | 2004-06-04 | 2005-12-22 | Qualcomm Incorporated | Multiplexing of w-cdma and ofdm signals in a wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101262631A (en) | 2008-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1123265C (en) | Method and appartus for frequency planning in a multi-system cellular communications network | |
| CN1992962B (en) | Inter-cell interference coordination method based on evolution network architecture of 3G system | |
| US8072960B2 (en) | Networking method of single frequency network in TD-SCDMA system | |
| CN101325791B (en) | Method and apparatus for distributing wireless resource for multimedia broadcast and multicast service | |
| EP2373077A1 (en) | Method and radio base station for effective spectrum utilization | |
| EP3091802B1 (en) | Resource reuse method, base station device and radio communication system | |
| CN101569213B (en) | Method of providing data broadcast/multicast | |
| CN101800939A (en) | Point to multi-point services using shared channels in wireless communication systems | |
| KR20020084268A (en) | Method and apparatus for controlling transmissions of a communications system | |
| Zhang et al. | Modeling and analysis of non-orthogonal MBMS transmission in heterogeneous networks | |
| EP1325651A1 (en) | Channel allocation for communication system | |
| CN104735680A (en) | High-density micro-cell deployment method and system | |
| CN101262631B (en) | Resource allocation method for multimedia broadcast and multicast service | |
| CN101068432A (en) | Apparatus, system and method for unified distributing resource for MBMS business | |
| CN101262637B (en) | An inter-frequency networking method for providing multicast broadcast and multicast service | |
| CN104170309B (en) | A kind of method for managing resource and device | |
| CN101198082B (en) | Method for providing MBMS service in multi-carrier frequency subdistrict | |
| CN101378541B (en) | Method for distributing dynamic channel of multimedia broadcast and multicast business | |
| CN101193429B (en) | Public channel configuration method for multi-carrier cell | |
| CN101677273B (en) | Resource distribution method of multimedia broadcast and multicast service and radio network controller | |
| Rong et al. | Comparison of mobile TV deployment strategies in 3G LTE networks | |
| CN101262633B (en) | Transmission and receiving method for multi-carrier time slot multimedia broadcast and multicast service | |
| Richter et al. | System-level simulation of a multilayer broadcast and broadband system | |
| CN104640226A (en) | Multiservice-based resource scheduling method and device in cognitive relay system | |
| CN102118196A (en) | Channel replacing method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |