CN101938712A - Multi-service multiplexing method and device in long-term evolution system - Google Patents
Multi-service multiplexing method and device in long-term evolution system Download PDFInfo
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- CN101938712A CN101938712A CN2009101484684A CN200910148468A CN101938712A CN 101938712 A CN101938712 A CN 101938712A CN 2009101484684 A CN2009101484684 A CN 2009101484684A CN 200910148468 A CN200910148468 A CN 200910148468A CN 101938712 A CN101938712 A CN 101938712A
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Abstract
The invention discloses a multi-service multiplexing method in a long-term evolution system, which relates to a multiplex technique of MBMS (Model Base Management System) and unicast service and is supplied to an unreasonable service multiplexing mode in the traditional LTE (Long Term Evolution) system. The multi-service multiplexing method comprises the technical scheme: multiplexing the multicast service MBMS and at least one kind of non-multicast service into the same subframe. The non-multicast service comprises unicast service, relay service, positioning service and future expansion service. The invention discloses a multi-service multiplexing device in the long-term evolution system at the same time, which comprises a multiplexing unit used for multiplexing the multicast service MBMS and at least one kind of non-multicast service into the same subframe. In the invention, a frequency resource in the LTE system subframe can supply more flexible multi-service multiplexing and is convenient to simultaneously dispatch a plurality of services without mutual influence.
Description
Technical field
The present invention relates to the multiplex technique of multiple business, relate in particular to multiple services multiplexing method and device in a kind of Long Term Evolution (LTE, Long Term Evolution) system.
Background technology
Along with the fast development of Internet and popularizing of large-screen multi-functional mobile phone, a large amount of mobile data multimedia services and various high bandwidth multimedia service have appearred, for example, video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has satisfied the business demand that the mobile subscriber constantly rises on the one hand, has also brought new business growth point for mobile operator simultaneously.These mobile data multimedia services require a plurality of users can receive identical data simultaneously, compare with general data service, have characteristics such as data volume is big, longer duration, delay sensitive.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd Generation Partnership Project) multicast service (MBMS has been proposed, Multimedia Broadcast Multicast Service), this business is a kind of technology that transmits data from a data source to a plurality of targets, realize sharing of network (comprising core net and Access Network) resource, improved the utilance of Internet resources (especially air interface resource).The MBMS of 3GPP definition not only can realize the classes of messages multicast and the broadcasting of plain text low rate, but also can realize the broadcasting and the multicast of high-speed multimedia business, multiple rich video, audio frequency and multimedia service are provided, this has complied with the trend of following mobile data development undoubtedly, for the development of 3G provides better professional prospect.
In LTE R9, MBMS can adopt the mixed carrier mode to send, and the mixed carrier mode is meant that unicast service (Unicast) and multicast service (MBMS) are that the time-multiplexed mode of unit sends with the subframe on same carrier wave.Wherein, the subframe that is used for carrying unicast service is called unicast sub, the subframe that is used for carrying multicast service is called multicast subframe, perhaps is called multicast/multicast single-frequency network (MBSFN, Multicast/Broadcast over Single Frequency Network) subframe.The purpose that with the subframe is the unit TDM service is to help the user terminal power saving, and when for example certain user's terminal was lost interest in for MBMS, these user terminals directly can be skipped the subframe of carrying MBMS.
For this reason, in LTE R8 and LTE R9, some corresponding subframes have been disposed for MBMS specially, detailed configuration can be with reference to the configuration information among the system information block SIB2 in the agreement of LTE R8 and LTE R9, and simple in order to call afterwards, these are called the MBSFN subframe in the subframe SIB2 configuration and that being used for of sending carried MBMS.The MBSFN subframe is defined as being used for specially carrying the MBMS business datum when LTE R8, allow the MBSFN subframe to carry other business among the LTE R9 but arrived as relaying (relay) business, location (Positioning) business and following (future extention) business etc. of expanding, and these other professional and MBMS is that to be with the MBSFN subframe that unit carries out time-multiplexed.
At present, how multiplexing in subframe in the LTE system for MBMS and Unicast, still do not come to a conclusion.
Summary of the invention
In view of this, main purpose of the present invention is to provide multiple services multiplexing method and device in a kind of long evolving system, can make the multiple business in the LTE system multiplexing better in LTE system subframe, makes things convenient for user terminal to monitor miscellaneous service.
For achieving the above object, technical scheme of the present invention is achieved in that
Multiple services multiplexing method in a kind of long evolving system comprises:
Multicast service MBMS and at least a non-multicast service is multiplexing in same subframe.
Preferably, the frequency resource that contains of described subframe is the resource or the single carrier resource of two above carrier aggregation.
Preferably, described MBMS and at least a non-multicast service are multiplexing on the frequency resource that described subframe contains in the frequency division mode.
Preferably, when the frequency resource that described subframe contains was the resource of two above carrier aggregation, described MBMS and at least a non-multicast service were multiplexing respectively on the different carrier of the frequency resource that described subframe contains.
Preferably, comprise the carrier wave that only carries described MBMS or only carry non-multicast service in described two above carrier waves.
Preferably, comprise with time division multiplexing in described two above carrier waves or carry the carrier wave of described MBMS and non-multicast service in the frequency division multiplexing mode.
Preferably, when the frequency resource that described subframe contains was the single carrier resource, described MBMS and at least a non-multicast service were multiplexing respectively on the sub carrier group of the frequency resource that described subframe contains.
Preferably, the subcarrier in the described sub carrier group is continuous or discrete on frequency.
Preferably, the carrier wave or the sub carrier group of carrying described MBMS and at least a non-multicast service carried out multiplexing in the orthogonal frequency division multiplex OFDM mode.
Preferably, described non-multicast service comprises and activating business in unicast service Unicast, junction traffic, positioning service and future.
Preferably, described subframe is unicast sub or multicast/multicast single-frequency network MBSFN subframe.
Multiple services multiplexer in a kind of long evolving system comprises:
Multiplexing Unit is used for MBMS and at least a non-multicast service multiplexing in same subframe.
Preferably, the frequency resource that contains of described subframe is the resource or the single carrier resource of two above carrier aggregation.
Preferably, described MBMS and at least a non-multicast service are multiplexing on the frequency resource that described subframe contains in the frequency division mode.
Preferably, when the frequency resource that described subframe contains was the resource of two above carrier aggregation, described Multiplexing Unit was multiplexing respectively on the different carrier of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.
Preferably, comprise the carrier wave that only carries described MBMS or only carry non-multicast service in described two above carrier waves.
Preferably, comprise with time division multiplexing in described two above carrier waves or carry the carrier wave of described MBMS and non-multicast service in the frequency division multiplexing mode.
Preferably, when the frequency resource that described subframe contains was the single carrier resource, described Multiplexing Unit was multiplexing respectively on the sub carrier group of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.
Preferably, the subcarrier in the described sub carrier group is continuous or discrete on frequency.
Preferably, described device also comprises:
The OFDM unit is used for carrying out multiplexing in the OFDM mode carrier wave or the sub carrier group of described MBMS of carrying and at least a non-multicast service.
Preferably, described non-multicast service comprises at least a in Unicast, junction traffic, positioning service and following the activating business.
Among the present invention,, make multiple services multiplex modes such as MBMS and Unicast more flexible, improved the utilization ratio of system resource by multiple business such as MBMS and Unicast is multiplexing in the subframe of LTE system in the mode of frequency division.The present invention is suitable for positioning service, Relay business and following newly-increased business etc. equally.User terminal, is monitored corresponding subframe and is got final product when monitoring concrete MBMS or Unicast according to multiple services multiplexed situation such as MBMS and Unicast.
Description of drawings
Fig. 1 is that MBMS of the present invention and Unicast are multiplexing in first kind of structural representation of subframe;
Fig. 2 is that MBMS of the present invention and Unicast are multiplexing in second kind of structural representation of subframe;
Fig. 3 is that MBMS of the present invention and Unicast are multiplexing in the third structural representation of subframe;
Fig. 4 is that MBMS of the present invention and Unicast are multiplexing in the 4th kind of structural representation of subframe;
Fig. 5 is the composition structural representation of multiple services multiplexer in the long evolving system of the present invention.
Embodiment
Basic thought of the present invention is: by multiple business such as MBMS and Unicast is multiplexing in the subframe of LTE system in the mode of frequency division, make multiple services multiplex modes such as MBMS and Unicast more flexible, improved the utilization ratio of system resource.The present invention is suitable for positioning service, Relay business and following newly-increased business etc. equally.User terminal, is monitored corresponding subframe and is got final product when monitoring concrete MBMS or Unicast according to multiple services multiplexed situation such as MBMS and Unicast.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Among the present invention, for the essence of technical solution of the present invention is described better, suppose following condition: for the LTE system of multicarrier, the supposing the system bandwidth is 100MHz, form by five carrier aggregation, these five spectrums of carrier can differ bigger, also can be close, also can be continuous, each carrier wave all has independently radio frequency unit, and, be by OFDM (OFDM between these five carrier waves, Orthogonal Frequency Division Multiplexing) mode polymerization, thus subcarrier on separately the carrier wave can be formed.For single-carrier system, the supposing the system bandwidth is 40MHz, and this is a continuous carrier, has only a radio frequency unit, and is multiplexing in a subframe in the OFDM mode between the frequency of this 40MHz.
The present invention is an example with the multiplex mode of MBMS and unicast service, further illustrates the essence of technical solution of the present invention by embodiment.Same suitable MBMS business and non-MBMS business (activate business in business except that unicast service such as positioning service, Relay business, future etc.).Professional implication is meant the valid data of this business correspondence among the present invention, and these valid data may be reference signal such as positioning service, and it is realized by reference signal, so reference signal is the data of positioning service.For unicast service, because unicast service is made of control information, reference signal, business datum, unicast service of the present invention is meant the business datum that this is professional, rather than these data control informations or reference signal.For Relay is professional, the Relay business is considered as unicast service gets final product.
Embodiment one
The application scenarios that this example relates to is multicarrier LTE system.MBMS is professional and unicast service is multiplexing in a subframe, is specially: the part carrier-specific in the distribution multicarrier is in the MBMS transmission business, and the distribution portion carrier-specific is in the transmission unicast service.
Fig. 1 is that MBMS of the present invention and Unicast are multiplexing in first kind of structural representation of subframe, as shown in Figure 1, and the multiplexing transmission on carrier wave 1 and carrier wave 2 of MBMS, the multiplexing transmission on carrier wave 3, carrier wave 4 and carrier wave 5 of unicast service.Promptly having realized MBMS and the unicast service frequency division multiplexing in a subframe, as for MBMS is multiplexed on several carrier waves, is to decide according to the traffic carrying capacity of intrasystem MBMS, is multiplexed at least on the carrier wave.Certainly in order in this subframe, also to carry unicast service, so at least also unicast service will be multiplexed on the carrier wave.When the traffic carrying capacity of MBMS and unicast service when not being big especially, MBMS and Unicast can be only multiplexing on limited several carrier waves, allow not bearer service of residue carrier wave, Fig. 2 is that MBMS of the present invention and Unicast are multiplexing in second kind of structural representation of subframe, as shown in Figure 2, MBMS data and unicast service data have realized frequency division multiplexing in subframe.Because carrier wave 1 to carrier wave 5 is OFDMs, so also be between MBMS business datum and the unicast service data with in the multiplexing subframe shown in the figure of the OFDM mode in the frequency division multiplexing.
In this example, shown subframe is unicast sub or MBSFN subframe.
In this example, owing to distributed the carrier resource that is exclusively used in MBMS and is exclusively used in unicast service, help the system side scheduling and send MBMS, do not need to consider mixed scheduling with unicast service.Bigger in system bandwidth, user terminal is supported to help when bandwidth is less user terminal and is received business, makes more power saving of user terminal.
Embodiment two
The application scenarios that this example relates to is multicarrier LTE system.MBMS and unicast service are multiplexing in a subframe, be specially MBMS and use the part carrier wave as two carrier waves, and on two carrier waves of multiplexing MBMS, also time division multiplexing has unicast service.Only multiplex unicast business or MBMS on other the carrier wave are perhaps still by the multiplexing MBMS of service integration mode and the unicast service of aforementioned two carrier waves.
Fig. 3 is that MBMS of the present invention and Unicast are multiplexing in the third structural representation of subframe, as shown in Figure 3, in multicarrier system, on carrier wave 1 and carrier wave 2, unicast service and MBMS are with subframe unit's time division multiplexing, carrier wave 3 is the carrier waves that are exclusively used in multiplexing MBMS, and carrier wave 4, carrier wave 5 are the only carrier wave of multiplex unicast business.Among the present invention, in the multicarrier system, can be on one or more carrier waves multiplexing MBMS and unicast service.
In this example, MBMS and the unicast service multiplex mode in subframe remains the frequency division multiplexing mode in the multicarrier system.And further the carrying MBMS carrier wave 1 and carrier wave 2 on, unicast service and MBMS time division multiplexing.In multicarrier system, the time-multiplexed while of unicast service and multicast service on some carrier wave, also can allow on some carrier waves, only to send multicast service unicast traffic only on some carrier waves.
In this example, shown subframe is unicast sub or MBSFN subframe, and each carrier wave still is based on the multiplex mode of OFDM.
In this example, allowing unicast service and multicast service on the part carrier wave is that unit carries out time division multiplexing with the subframe, can effectively utilize resource like this, in the traffic carrying capacity of MBMS hour, multiplexing can the multiplex unicast business on the carrier wave of MBMS, with the utilance of this elevator system resource.
Embodiment three
The application scenarios that this example relates to is formed greatly and by a carrier wave for the bandwidth of LTE system, and MBMS and unicast service are multiplexing in a subframe in the frequency division mode.
Fig. 4 is that MBMS of the present invention and Unicast are multiplexing in the 4th kind of structural representation of subframe, as shown in Figure 4, in the large bandwidth system that a carrier wave is formed, owing to be ofdm system, system bandwidth is appreciated that to being become by limited sub carrier group,, the subcarrier of this system is divided into five sub carrier group here, the sub-carrier number that comprises in each sub carrier group can be identical, also can be inequality.Shown in Fig. 4 is carrying MBMS in therein two groups of sub carrier group (preceding two sub carrier group), carries unicast service in remaining three groups of sub carrier group.The sub carrier group here is corresponding with the carrier wave among the embodiment two, multiplex mode and the carrier wave of realizing MBMS and unicast service are identical, among embodiment one and the embodiment two MBMS and unicast service are multiplexed into the mode of carrier wave, are equally applicable to the sub carrier group of this example.For example can adopt time-multiplexed mode multiplex unicast business on the sub carrier group of carrying MBMS, concrete operations and carrier time-division multiplexing carrying MBMS and unicast service are identical, and certainly, multiplexing is that unit carries out with the subframe.Like this, also realized MBMS and the unicast service frequency division multiplexing in subframe, and from the angle of sub carrier group, some sub carrier group MBMS and unicast service time division multiplexing have also been realized.For example also can fix and use some sub carrier group to be exclusively used in carrying MBMS, other sub carrier group is exclusively used in the carrying unicast service.Like this, realized the professional and unicast service frequency division multiplexing in subframe of MBMS.
In this example, the subcarrier in the sub carrier group is continuous on frequency, the corresponding continuous frequency band of sub carrier group.Certainly, not necessarily frequency is continuous between each sub carrier group.
In this example, in the large bandwidth system of a RF processing unit, because the bearing capacity of subframe is very big, the traffic carrying capacity of considering the MBMS of each dispatching cycle might be able to not be filled full subframe, so, for flexibility and the resource utilization that increases scheduling, so allow MBMS and unicast service frequency division multiplexing in subframe.
Fig. 5 is the composition structural representation of multiple services multiplexer in the long evolving system of the present invention, as shown in Figure 5, multiple services multiplexer comprises Multiplexing Unit 50 and OFDM unit 51 in the long evolving system of the present invention, wherein, Multiplexing Unit 50 is used for MBMS and at least a non-multicast service multiplexing in same subframe.The frequency resource that described subframe contains is the resource or the single carrier resource of two above carrier aggregation.Described at least two kinds of business are multiplexing on the frequency resource that described subframe contains in the frequency division mode.When the frequency resource that described subframe contains was the resource of two above carrier aggregation, described Multiplexing Unit was multiplexing respectively on the different carrier of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.When the frequency resource that described subframe contains was the single carrier resource, described Multiplexing Unit was multiplexing respectively on the sub carrier group of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.Subcarrier in the described sub carrier group is continuous on frequency.OFDM unit 51 is used for carrying out multiplexing in the OFDM mode carrier wave or the sub carrier group of carrying MBMS and at least a non-multicast service.Described non-multicast service comprises will activate business in Unicast, junction traffic, positioning service and future.
The realization function that it will be appreciated by those skilled in the art that the each processing unit in the multiple services multiplexer in the long evolving system shown in Figure 5 can be understood with reference to the associated description among the embodiment one to embodiment four.OFDM unit 51 wherein is not the essential features that realizes multiple services multiplexer in the long evolving system of the present invention, only establishes for optimizing device shown in Figure 5.In the long evolving system shown in Figure 5 in the multiple services multiplexer function of each unit can realize by the program that runs on the processor, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (21)
1. multiple services multiplexing method in the long evolving system is characterized in that, comprising:
Multicast service MBMS and at least a non-multicast service is multiplexing in same subframe.
2. method according to claim 1 is characterized in that, the frequency resource that described subframe contains is the resource or the single carrier resource of two above carrier aggregation.
3. method according to claim 2 is characterized in that, described MBMS and at least a non-multicast service are multiplexing on the frequency resource that described subframe contains in the frequency division mode.
4. method according to claim 3, it is characterized in that, when the frequency resource that described subframe contains was the resource of two above carrier aggregation, described MBMS and at least a non-multicast service were multiplexing respectively on the different carrier of the frequency resource that described subframe contains.
5. method according to claim 4 is characterized in that, comprises the carrier wave that only carries described MBMS or only carry non-multicast service in described two above carrier waves.
6. method according to claim 4 is characterized in that, comprises with time division multiplexing in described two above carrier waves or carries the carrier wave of described MBMS and non-multicast service in the frequency division multiplexing mode.
7. method according to claim 3 is characterized in that, when the frequency resource that described subframe contains was the single carrier resource, described MBMS and at least a non-multicast service were multiplexing respectively on the sub carrier group of the frequency resource that described subframe contains.
8. method according to claim 7 is characterized in that, the subcarrier in the described sub carrier group is continuous or discrete on frequency.
9. according to each described method in the claim 4 to 8, it is characterized in that the carrier wave or the sub carrier group of carrying described MBMS and at least a non-multicast service are carried out multiplexing in the orthogonal frequency division multiplex OFDM mode.
10. method according to claim 9 is characterized in that, described non-multicast service comprises will activate business in unicast service Unicast, junction traffic, positioning service and future.
11. method according to claim 10 is characterized in that, described subframe is unicast sub or multicast/multicast single-frequency network MBSFN subframe.
12. multiple services multiplexer in the long evolving system is characterized in that, comprising:
Multiplexing Unit is used for MBMS and at least a non-multicast service multiplexing in same subframe.
13. device according to claim 12 is characterized in that, the frequency resource that described subframe contains is the resource or the single carrier resource of two above carrier aggregation.
14. device according to claim 13 is characterized in that, described MBMS and at least a non-multicast service are multiplexing on the frequency resource that described subframe contains in the frequency division mode.
15. device according to claim 14, it is characterized in that, when the frequency resource that described subframe contains was the resource of two above carrier aggregation, described Multiplexing Unit was multiplexing respectively on the different carrier of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.
16. device according to claim 15 is characterized in that, comprises the carrier wave that only carries described MBMS or only carry non-multicast service in described two above carrier waves.
17. device according to claim 15 is characterized in that, comprises with time division multiplexing in described two above carrier waves or carries the carrier wave of described MBMS and non-multicast service in the frequency division multiplexing mode.
18. device according to claim 14, it is characterized in that, when the frequency resource that described subframe contains was the single carrier resource, described Multiplexing Unit was multiplexing respectively on the sub carrier group of the frequency resource that described subframe contains with described MBMS and at least a non-multicast service.
19. device according to claim 18 is characterized in that, the subcarrier in the described sub carrier group is continuous or discrete on frequency.
20., it is characterized in that described device also comprises according to each described device in the claim 14 to 19:
The OFDM unit is used for carrying out multiplexing in the OFDM mode carrier wave or the sub carrier group of described MBMS of carrying and at least a non-multicast service.
21. device according to claim 20 is characterized in that, described non-multicast service comprises at least a in Unicast, junction traffic, positioning service and following the activating business.
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| WO2019033915A1 (en) * | 2017-08-16 | 2019-02-21 | 中兴通讯股份有限公司 | Service scheduling method and device |
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Application publication date: 20110105 |