CN101312588B - Wireless communication method - Google Patents
Wireless communication method Download PDFInfo
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- CN101312588B CN101312588B CN200710106152XA CN200710106152A CN101312588B CN 101312588 B CN101312588 B CN 101312588B CN 200710106152X A CN200710106152X A CN 200710106152XA CN 200710106152 A CN200710106152 A CN 200710106152A CN 101312588 B CN101312588 B CN 101312588B
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Abstract
The invention discloses a wireless communication method, comprising steps that: S102, a wide code division multiple access system and a time division synchronization code division multiple access system cover a region or more at the same time, the wide code division multiple access system carriers broadcast service and common services, the time division synchronization code division multiple access system carries multimedia broadcast and multicast service; S104, the user terminal in the region reads the system information of the wide code division multiple access system and the time division synchronization code division multiple access system synchronously; S106, the user terminal initializes broadcast service and common service to the wide code division multiple access system; S108, forreceiving multimedia broadcast and multicast service, the user terminal is accessed into the time division synchronization code division multiple access system too. The invention can improve the utilization of frequency spectrum.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of wireless communications method.
Background technology
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 3G system, provide multimedia broadcasting and multicast service (Multimedia Broadcast/Multicast Service is called for short MBMS) also to become an active demand.In the European market, the frequency range that frequency division multiplexing (Frequency DivisionDiplexing is called for short FDD) distributes is UL1920-1980MHZ/DL2110-2170MHZ.The frequency range that time division multiplexing (Time Division Diplexing is called for short TDD) is distributed is 1900-1920MHZ and 2010-2025MHZ.How the frequency range of TDD is used, form complementation, improve the availability of frequency spectrum comparison key that seems WCDMA.And the service application of MBMS just in time can be utilized the mutual supplement with each other's advantages of TDD and FDD.The business of MBMS all is a downlink data, and is not high to up bandwidth requirement.If adopt FDD to realize the MBMS business, the upstream frequency of FDD has just been wasted so.And the up-downgoing business of TDD does not need up-downgoing frequency separately, can flexible configuration.If ascender is all walked the FDD system, the time slot of TDD system all is configured to descending time slot so, and maximum has satisfied descending bandwidth demand.
Similar frequency allocation situation also exists in other countries, is FDDUL1710-1755MHZ/DL1910-1930MHZ as the frequency range of the U.S., and the frequency range that TDD distributes is 1910-1930MHZ.
Summary of the invention
One or more problems in view of the above the invention provides wireless communications method.
A kind of wireless communications method according to the present invention may further comprise the steps: S102, broadband CDMA system and TDS-CDMA system cover one or more sub-districts simultaneously, broadband CDMA system is used to carry broadcasting service and general business, and TDS-CDMA system is used for bearing multimedia broadcast and multicast service; S104, the user terminal in the sub-district reads the system information of broadband CDMA system and TDS-CDMA system simultaneously; S106, user terminal is to broadband CDMA system originates broadcast and general business; And S108, under the situation that needs receiving multimedia broadcast and multicast service, user terminal inserts TDS-CDMA system.
In step S102, broadband CDMA system does not dispose any Traffic Channel that is used for multimedia broadcasting and multicast service, and the correlated channels of multimedia broadcasting and multicast service is supported in the TDS-CDMA system configuration.
In step S102, TDS-CDMA system determines to adopt the single-frequency point to arrange net according to the business channels of frequency resource and needs support or multifrequency point is arranged net.Wherein, TDS-CDMA system is configured to down at least one channel: the MBMS point to multiple spot control channel, MBMS point-to-multipoint service channel, MBMS point to multiple spot scheduling channel, Random Access Channel, forward access channel and MBMS informing indication channel.
In step S104, need at user terminal under the situation of response count business or adding multimedia broadcasting and multicast service, the family terminal is carried out the Radio Resource control connection by the Random Access Channel and the forward access channel of TDS-CDMA system configuration.
In step S104, need at user terminal under the situation of receiving multimedia broadcast or multicast packet, according to the system information of obtaining from TDS-CDMA system, read MBMS point-to-multipoint control channel information and MBMS point-to-multipoint service channel configuration information, obtain configuration and the receiving multimedia broadcast or the multicast packet of the MBMS point-to-multipoint service channel of user's interest program correspondence.
Another kind of wireless communications method according to the present invention may further comprise the steps: S402, broadband CDMA system and TDS-CDMA system cover one or more sub-districts simultaneously, broadband CDMA system is used to dispose the MBMS point to multiple spot control channel, MBMS informing indication channel, Random Access Channel and forward access channel and other common signal channels, and TDS-CDMA system is used for reading configuration information and configurating downlink synchronizing channel and MBMS point-to-multipoint service channel from broadband CDMA system; S404, the user terminal in the sub-district only reads the system broadcast information in the broadband CDMA system; S406, user terminal is initiated general business to broadband CDMA system; And S408, under the situation that needs receiving multimedia broadcast and multicast service, user terminal is access band code division multiple access system and TDS-CDMA system simultaneously.
In step S402, TDS-CDMA system determines to adopt the single-frequency point to arrange net according to the business channels of frequency resource and needs support or multifrequency point is arranged net.
In step S404, need at user terminal under the situation of response count business or adding multimedia broadcasting and multicast service, user terminal carries out the Radio Resource control connection by the Random Access Channel and the forward access channel of broadband CDMA system configuration.
In step S404, need at user terminal under the situation of receiving multimedia broadcast or multicast packet, read the MBMS point-to-multipoint control channel information of broadband CDMA system configuration and according to MBMS point-to-multipoint service channel configuration information, obtain the configuration of the MBMS point-to-multipoint service channel of user's interest program correspondence, be synchronized to this Traffic Channel of TDS-CDMA system and receiving multimedia broadcast or multicast packet on this Traffic Channel.
The present invention has utilized the up-downgoing of TDS-CDMA system can adopt the advantage that same frequency and related time-slot can flexible configuration, it is specifically designed to supports the MBMS business, has improved spectrum utilization efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the wireless communications method of first embodiment of the invention;
Fig. 2 is the flow chart according to another wireless communications method of first embodiment of the invention;
Fig. 3 is the time slot configuration figure of the TDS-CDMA system in the method shown in Figure 2;
Fig. 4 is the flow chart according to the wireless communications method of second embodiment of the invention;
Fig. 5 is the flow chart according to another wireless communications method of second embodiment of the invention;
And
Fig. 6 is the time slot configuration figure of the TDS-CDMA system in the method shown in Figure 5.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
With reference to figure 1, the wireless communications method according to first embodiment of the invention is described.As shown in Figure 2, this wireless communications method may further comprise the steps: S102, broadband CDMA system (WCDMA) covers one or more sub-districts simultaneously with TDS-CDMA system (TD-SCDMA), broadband CDMA system is used to carry broadcasting service and general business, and TDS-CDMA system is used for bearing multimedia broadcast and multicast service; S104, the user terminal in the sub-district reads the system information of broadband CDMA system and TDS-CDMA system simultaneously; S106, user terminal is to broadband CDMA system originates broadcast and general business; And S108, under the situation that needs receiving multimedia broadcast and multicast service, user terminal inserts TDS-CDMA system.
In step S102, broadband CDMA system does not dispose any Traffic Channel that is used for multimedia broadcasting and multicast service, and the correlated channels of multimedia broadcasting and multicast service is supported in the TDS-CDMA system configuration.
In step S102, TDS-CDMA system determines to adopt the single-frequency point to arrange net according to the business channels of frequency resource and needs support or multifrequency point is arranged net.Wherein, TDS-CDMA system is configured to down at least one channel: the MBMS point to multiple spot control channel (MCCH), MBMS point-to-multipoint service channel (MTCH), MBMS point to multiple spot scheduling channel (MSCH), Random Access Channel (RACH), forward access channel (FACH) and MBMS informing indication channel (MICH).
In step S104, need at user terminal under the situation of response count business or adding multimedia broadcasting and multicast service, the family terminal is carried out the Radio Resource control connection by the Random Access Channel and the forward access channel of TDS-CDMA system configuration.
In step S104, need at user terminal under the situation of receiving multimedia broadcast or multicast packet, according to the system information of obtaining from TDS-CDMA system, read MBMS point-to-multipoint control channel information and MBMS point-to-multipoint service channel configuration information, obtain configuration and the receiving multimedia broadcast or the multicast packet of the MBMS point-to-multipoint service channel of user's interest program correspondence.
More specifically, with reference to figure 2 explanations another wireless communications method according to first embodiment of the invention.As shown in Figure 2, this wireless communications method may further comprise the steps:
S202, WCDMA base station and TD-SCDMA base station are with covering.
S204, WCDMA do not do the support of MBMS business, do not dispose the Traffic Channel of any MBMS.Comprise MCCH/MICH/MTCH/MSCH.
S206, TD-SCDMA is according to the business channels of frequency resource and needs support, and consideration is that the single-frequency point is arranged net or the N frequency is arranged net.Corresponding all correlated channels of supporting MBMS of configuration.As shown in Figure 3, TS0 needs the channel of configuration broadcast system information and walks the descending FACH channel of signaling, and TS1 need be configured to away the up RACH channel of signaling.Also need to dispose MCCH, MICH or MSCH channel.The configuration information of these channels is broadcasted in system information.In addition, need configuration MTCH channel.
S208, subscriber equipment (User Equipment is called for short UE) reads the system information of WCDMA and TD-SCDMA simultaneously.
S210 when UE initiates general business (for example, the PS business of CS audio call, PTP, HSDPA or HSUPA business), inserts the WCDMA system.
When S212, UE need receive the MBMS business, be linked in the TS-SCDMA system.If counting or add the MBMS business, on the RACH of TD-SCDMA system configuration and FACH, carry out RRC and be connected, and then walk corresponding signaling process.When receiving the MBMS data if desired, according to the TD-SCDMA system information, read the MCCH channel, according to the MTCH configuration information that reads on the MCCH channel, obtain the MTCH channel configuration of UE programs of interest correspondence, receive the MBMS data at the interested MTCH of UE.
That is to say that in first embodiment, WCDMA and TD-SCDMA are fully independently.The broadcasting of WCDMA and general business adopt the agreement of the system of WCDMA fully, do not make any modification.The TD-SCDMA system also is a system fully independently, but only need finish physical layer and support most of function, comprise that Cell searching, uplink random insert, upstream data is launched, downlink data receives or the like, support the channel of other general business not dispose, as long as support relevant function with MBMS.Other business of UE are walked WCDMA, but with flow processs such as the professional relevant counting of MBMS, adding MBMS business, the receptions of MBMS business datum, all finish in the TD-SCDMA system.Therefore, TD-SCDMA must dispose away the up RACH and the descending FACH channel of signaling.In first embodiment, the WCDMA system does not need to make any modification, and two systems are relatively independent.But the terminal relative complex, the MBMS business that TD-SCDMA supports also can reduce.
With reference to figure 4, the wireless communications method according to second embodiment of the invention is described.As shown in Figure 4, this wireless communications method may further comprise the steps: S402, broadband CDMA system and TDS-CDMA system cover one or more sub-districts simultaneously, broadband CDMA system is used for disposing the MBMS point to multiple spot control channel, MBMS point-to-multipoint service channel, MBMS informing indication channel, Random Access Channel and forward access channel one of at least and common signal channel, and TDS-CDMA system is used for reading configuration information and configurating downlink synchronizing channel and MBMS point to the multiple spot scheduling channel from broadband CDMA system; S404, the user terminal in the sub-district only reads the system broadcast information in the broadband CDMA system; S406, user terminal is initiated general business to broadband CDMA system; And S408, under the situation of needs response multimedia broadcasting and multicast service, user terminal is access band code division multiple access system and TDS-CDMA system simultaneously.
In step S402, TDS-CDMA system determines to adopt the single-frequency point to arrange net according to frequency resource and the business channels that needs to support or multifrequency point is arranged net.
In step S404, need at user terminal under the situation of count pick up business or adding multimedia broadcasting and multicast service, user terminal carries out the Radio Resource control connection by the Random Access Channel and the forward access channel of broadband CDMA system configuration.
In step S404, need at user terminal under the situation of receiving multimedia broadcast or multicast packet, read the MBMS point-to-multipoint control channel information of broadband CDMA system configuration and according to the configuration information of MBMS point-to-multipoint service channel, obtain the configuration of the MBMS point-to-multipoint service channel of user's interest program correspondence, according to this configuration, be synchronized to this Traffic Channel of TDS-CDMA system, and on this Traffic Channel and receiving multimedia broadcast or multicast packet.
More specifically, with reference to figure 5 explanations another wireless communications method according to second embodiment of the invention.As shown in Figure 5, this wireless communications method may further comprise the steps:
S502, WCDMA base station and TD-SCDMA base station are with covering.
S504, WCDMA not only support the common signal channel of general business, also need to support MCCH, MICH and MSCH (optional, as to support that if desired the WCDMA system supports) channel.The MTCH configuration information of broadcasting TD-SCDMA system on the MCCH channel.
S506, TD-SCDMA system and WCDMA are with covering.TD-SCDMA can be according to the business channels of frequency resource and needs support, and consideration is that the single-frequency point is arranged net or the N frequency is arranged net.TD-SCDMA does not need to do system information broadcast.All configuration informations all read in the WCDMA system.As shown in Figure 5, the TD-SCDMA system only disposes DwPCH channel and MTCH channel.The DwPCH channel is used for the clock synchronization that terminal is carried out 5ms, and MTCH is used to carry out business datum broadcasting.
S508, UE only read the system broadcast information in the WCDMA system.
S510 when UE initiates general business (for example, the PS business of CS audio call, PTP, HSDPA or HSUPA business), inserts the WCDMA system.
When S512, UE need receive the MBMS business,, read the MCCH channel configuration of WCDMA system, on the MCCH channel, read the MBMS relevant information according to the WCDMA system information.If UE needs response count or adds certain MBMS business, still on the RACH of WCDMA system configuration and FACH, carry out RRC and be connected, and then walk corresponding signaling process.If want to read the data of MBMS business, then on the MCCH of WCDMA channel, read the MTCH channel configuration, obtain the configuration of UE programs of interest place MTCH channel, receive the MBMS data according to channel configuration UE this MTCH channel in interested TD-SCDMA system.
That is to say that in a second embodiment, with the system combined carrying of WCDMA, TD-SCDMA only need finish the synchronous and downlink data transmission in sub-district, other functions are continued to use the function of WCDMA.The TD-SCDMA system only disposes DwPCH synchronizing channel and MTCH channel, and other channels all are configured in the WCDMA system.In the WCDMA system, other business of UE are walked WCDMA such as the channel configuration of MCCH or MICH, and with the professional relevant counting of MBMS, add the MBMS business and all walk the WCDMA system.Terminal adds the information of MBMS business, can be delivered to TD-SCDMA by core net.As shown in Figure 6, TD-SCDMA does not need to dispose away the up RACH and the descending FACH channel of signaling, only disposes DwPCH synchronizing channel and MTCH channel.All time slots such as TS0～TS6 can be configured to descending time slot.In a second embodiment, WCDMA need support accordingly the relevant TD cell with MBMS, do relevant protocol modification, but the TD-SCDMA system can support more MTCH channel, and terminal processes is simpler.
In sum, the present invention has utilized the up-downgoing of TDS-CDMA system can adopt the advantage that same frequency and related time-slot can flexible configuration, it is specifically designed to supports the MBMS business, thereby improved spectrum utilization efficiency.
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 changes and variation.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 (3)
1. a wireless communications method is characterized in that, may further comprise the steps:
S402, broadband CDMA system and TDS-CDMA system cover one or more sub-districts simultaneously, described broadband CDMA system is used to dispose the MBMS point to multiple spot control channel, MBMS informing indication channel, Random Access Channel and forward access channel and other common signal channels, and described TDS-CDMA system is used for reading configuration information and configurating downlink synchronizing channel and MBMS point-to-multipoint service channel from described broadband CDMA system;
S404, the user terminal in the described sub-district only reads the system broadcast information in the described broadband CDMA system;
S406, described user terminal is initiated general business to described broadband CDMA system; And
S408, under the situation that needs receiving multimedia broadcast and multicast service, described user terminal inserts described broadband CDMA system and described TDS-CDMA system simultaneously;
Wherein, need at described user terminal under the situation of receiving multimedia broadcast or multicast packet, read the described MBMS point-to-multipoint control channel information of described broadband CDMA system configuration and according to MBMS point-to-multipoint service channel configuration information, obtain the configuration of the MBMS point-to-multipoint service channel of user's interest program correspondence, be synchronized to this Traffic Channel of TDS-CDMA system and on this Traffic Channel, receive described multimedia broadcasting or multicast packet.
2. wireless communications method according to claim 1 is characterized in that, in described step S402, described TDS-CDMA system determines to adopt the single-frequency point to arrange net according to the business channels of frequency resource and needs support or multifrequency point is arranged net.
3. wireless communications method according to claim 1 and 2, it is characterized in that, in described step S408, need response count professional or add under the situation of described multimedia broadcasting and multicast service at described user terminal, described user terminal carries out the Radio Resource control connection by the described Random Access Channel and the described forward access channel of described broadband CDMA system configuration.
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| CN200710106152XA CN101312588B (en) | 2007-05-24 | 2007-05-24 | Wireless communication method |
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| CN101312588B true CN101312588B (en) | 2011-09-21 |
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| CN101931879B (en) * | 2009-06-19 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of transmission method of multicast control channel information and equipment thereof |
| CN102065032B (en) * | 2010-07-15 | 2013-06-12 | 西安电子科技大学 | Mobile communication system and method based on high altitude platform semi-regeneration signal processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457165A (en) * | 2002-05-03 | 2003-11-19 | 三星电子株式会社 | Device and method for multimedia broadcasting/multiple broadcasting in mobile communication system |
| WO2004112314A1 (en) * | 2003-06-09 | 2004-12-23 | Qualcomm Incorporated | Method and apparatus for broadcast application in a wireless communication system |
| CN1791262A (en) * | 2004-12-14 | 2006-06-21 | 华为技术有限公司 | WCDMA and TD-SCDMA mixed network service bearing and distributing method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457165A (en) * | 2002-05-03 | 2003-11-19 | 三星电子株式会社 | Device and method for multimedia broadcasting/multiple broadcasting in mobile communication system |
| WO2004112314A1 (en) * | 2003-06-09 | 2004-12-23 | Qualcomm Incorporated | Method and apparatus for broadcast application in a wireless communication system |
| CN1791262A (en) * | 2004-12-14 | 2006-06-21 | 华为技术有限公司 | WCDMA and TD-SCDMA mixed network service bearing and distributing method |
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