CN101193429B - Public channel configuration method for multi-carrier cell - Google Patents
Public channel configuration method for multi-carrier cell Download PDFInfo
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- CN101193429B CN101193429B CN2006101457946A CN200610145794A CN101193429B CN 101193429 B CN101193429 B CN 101193429B CN 2006101457946 A CN2006101457946 A CN 2006101457946A CN 200610145794 A CN200610145794 A CN 200610145794A CN 101193429 B CN101193429 B CN 101193429B
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Abstract
The invention provides a method for assigning public channels in a multi-carrier-frequency cell. The method includes the following steps: step 1, a frequency point is determined as a main carrier frequency from a plurality of distributed frequency points for each cell and other frequency points are used as assistant carrier frequencies; step 2, pilot channel information, information of mainly controlling a physical channel publicly, information of bearing a paging channel, information of controlling the channel publicly and information of assisting in controlling the physical channel publicly in a public service channel are transmitted on the main carrier frequency; step 3, information of bearing multi-casting points to multi-point broadcast service channel and/or information of assistant in controlling the physical channel publicly in the multi-casting points to multi-point broadcast service channel are transmitted on the main carrier frequency or an assistant carrier frequency or a plurality of carrier frequencies. The invention allows an SCCPCH which bears an MTCH to be configured on the assistant carrier frequency and increases the flexibility of providing an MBMB service by a cell and improves the receiving quality of the MBMB service by applying wireless technologies like joint detection of multi-user, macro diversity etc.
Description
Technical field
The present invention relates to the communications field, relate in particular to the public channel configuration method of multi-carrier frequency cell.
Background technology
Satisfy the ever-increasing demand in mobile communication market, the power system capacity that improves hot zones covers, TD-SCDMA multi-carrier frequency cell notion is that a plurality of sub-districts of identical geographical coverage area (each carrier frequency is a sub-district) is merged together, share same set of common channel resources, thereby constitute a multi-carrier frequency cell.In actual networking, use multi-carrier frequency cell, not only on RRM, reduced complexity, if the main carrier frequency of neighbor cell is configured on the different frequencies, not only can reduce the interference of pilot channel and common signal channel effectively, but also can reduce requirement effectively, thereby can guarantee to carry out networking with flexible way more to the base station acc power.For the sub-district of supporting multifrequency point, TD-SCDMA multicarrier industry standard has following agreement:
There is and has only a main carrier frequency.
The carrier frequency of carrying PCCPCH is called main carrier frequency, and the carrier frequency that does not carry PCCPCH is called assistant carrier frequency.
The DwPCH pilot frequency channel information will only send on main carrier frequency.
SCCPCH, FPACH, PRACH, PICH common channel information will only send on main carrier frequency.
Main carrier frequency adopts identical scrambler and basic Midamble sign indicating number with assistant carrier frequency.
The shared uplink and downlink timeslot of same UE is at same frequency.
TD-SCDMA multicarrier rower can only the agreement on main carrier frequency mainly be to be used for carrying common signaling (BCH, PCH, FACH etc.) for common signal channel mainly to common signal channel, and use omni-directional antenna transmission, in order effectively to reduce the interference of common signal channel to adjacent sub-district, common signal channel is placed on the TS0 time slot of main carrier frequency the interference in the time of just can reducing identical networking widely.
But along with the commercialization of 3-G (Generation Three mobile communication system), mobile TV service (Mobile TV) more and more receives the concern of operator at present.In the TD-SCDMA system, provide multimedia broadcasting and multicast service (MBMS:Multimedia Broadcast/MulticastService) also to become an active demand.Organize the agreement of 3GPP according to global standardsization to the MBMS business, the MBMS business is at UTRAN (Universal Terrestrial RadioAccess Network, universal land radio access web) and UE (User Equipment, two kinds of patterns are arranged: PTM (Point-to-Multipoint when transmitting subscriber equipment), point-to-multipoint) pattern and PTP (Point-to-Point, point-to-point) pattern.The PTM pattern uses logic channel MTCH (MBMS PTM Traffic Channel, point multipoint message traffic channel) that all are added multicast service or the interested UE of broadcasting service is sent data; Ptp mode then uses dedicated logical channel DTCH that single UE is sent business datum.When big, using the PTM pattern can effectively utilize wireless network resource undoubtedly, cut operating costs widely to the interested UE number of multicast service.
Just there are some problems when in the TD-SCDMA multi-carrier frequency system, providing MBMS professional.Logic channel MTCH under the MBMS PTM pattern is mapped to transmission channel FACH, and finally uses the SCCPCH public physic channel.In the TD-SCDMA multi-carrier frequency cell, being configured on the TS0 time slot of main carrier frequency the SCCPCH of carrying MTCH obviously, capacity is not enough, because the MBMS service needed of 1 64K is used 8 code channels in the TD-SCDMA system, the MBMS service needed of 1 128K is used about 18 code channels.If the SCCPCH limitation arrangement that will carry MTCH on other time slots of main carrier frequency, be configured in assistant carrier frequency on compare, do not have any superiority, increased the restriction that frequency is selected on the contrary, cause the anxiety of network radio resources.If allow the SCCPCH of carrying MTCH to be configured on the assistant carrier frequency, and use other wireless technologys,, increase is provided the flexibility of MBMS business as joint-detection etc.
Summary of the invention
The objective of the invention is to solve problem such as frequency and code channel resource anxiety when in TD-SCDMA multicarrier system, providing the MBMS point multipoint message traffic in order to overcome the restriction of existing TD-SCDMA multicarrier system configuration SCCPCH common signal channel.
The public channel configuration method of multi-carrier frequency cell comprises the following steps: in a kind of wireless telecommunication system of the present invention
Step 1: at each sub-district, determine a frequency as main carrier frequency from a plurality of frequencies that distribute, all the other are assistant carrier frequency;
Step 2: Secondary Common Control Physical Channel (SCCPCH) information that on main carrier frequency, sends pilot channel (DwPCH) information, Primary Common Control Physical Channel (PCCPCH) information and bearing call channel (PCCH) information, Common Control Channel (CCCH) information and CTCH Common Traffic Channel (CTCH).
Step 3: select main carrier frequency and/or one or more assistant carrier frequency according to MBMS traffic performance and/or each frequency service load condition of sub-district, sending the SCCPCH public physic channel information that carries MBMS point multipoint message traffic channel (MTCH) on the main carrier frequency or on one or more assistant carrier frequencies then.
According to said method of the present invention, in the described step 3, the MTCH of neighbor cell and the SCCPCH that is carried thereof can be configured on same carrier and the identical time slot;
According to said method of the present invention, in the described step 3, the one or more MBMS business that all send in adjacent a plurality of sub-districts simultaneously can independently dispose a SCCPCH CCTrCH respectively, perhaps are multiplexed into a SCCPCH CCTrCH;
According to said method of the present invention, in the described step 3,, perhaps be multiplexed into a SCCPCH CCTrCH only in this sub-district but the one or more MBMS business that do not send simultaneously at neighbor cell can independently dispose a SCCPCH CCTrCH respectively.
Adopt the method for the invention, compared with prior art, allow the SCCPCH of carrying MTCH to be configured on the assistant carrier frequency, and utilization is as wireless technologys such as multi-user association detection, grand diversity, increasing the sub-district provides the flexibility of MBMS business, improves the quality of reception of MBMS business.
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 public channel configuration method of multi-carrier frequency cell of the present invention;
Fig. 2 is according to N frequency point cell identical networking schematic diagram of the present invention;
Fig. 3 is N frequency neighbor cell common signal channel SCCPCH ios dhcp sample configuration IOS DHCP figure according to an embodiment of the invention; And
Fig. 4 a and Fig. 4 b are N frequency point cell common signal channel SCCPCH CCTrCH ios dhcp sample configuration IOS DHCP figure according to an embodiment of the invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
The present invention relates to a kind of multi-carrier frequencies district common channel collocation method, relate in particular to the public channel configuration method of multi-carrier frequency cell in the wireless communication field TD-SCDMA system.
Fig. 1 is the flow chart according to the public channel configuration method of multi-carrier frequency cell of the present invention.As shown in Figure 1, the public channel configuration method of multi-carrier frequency cell may further comprise the steps:
Step S102 determines a frequency as main carrier frequency for each sub-district from a plurality of frequencies that distribute, other frequencies are as assistant carrier frequency;
Step S104 sends the Secondary Common Control Physical Channel information of pilot frequency channel information, Primary Common Control Physical Channel information, bearing call channel information, Common Control Channel information and CTCH Common Traffic Channel on described main carrier frequency; And
Step S106 sends carrying broadcast multi-broadcasting point multipoint message traffic channel information and or the Secondary Common Control Physical Channel information of described broadcast multi-broadcasting point multipoint message traffic channel on described main carrier frequency and/or one or more assistant carrier frequency.
Select described main carrier frequency and/or described one or more assistant carrier frequency to send the Secondary Common Control Physical Channel information of described broadcast multi-broadcasting point multipoint message traffic channel information and/or described broadcast multi-broadcasting point multipoint message traffic channel according to each frequency service load condition of BroadCast MultiCast Service characteristic and/or described sub-district.
The described broadcast multi-broadcasting point multipoint message traffic channel of neighbor cell and/or the Secondary Common Control Physical Channel of described broadcast multi-broadcasting point multipoint message traffic channel are configured on different carrier frequency and the different time-gap.
The described broadcast multi-broadcasting point multipoint message traffic channel of neighbor cell and/or the Secondary Common Control Physical Channel of described broadcast multi-broadcasting point multipoint message traffic channel are configured on same carrier and the identical time slot.
Dispose the coded composite transport channel (SCCPCHCCTrCH) of a Secondary Common Control Physical Channel for the one or more BroadCast MultiCast Service that send in adjacent a plurality of sub-districts simultaneously.
The one or more BroadCast MultiCast Service that send in adjacent a plurality of sub-districts simultaneously are multiplexed into a SCCPCH CCTrCH.
Be the SCCPCH CCTrCH of one or more BroadCast MultiCast Service configurations that does not only send simultaneously at neighbor cell in this sub-district.
Only the one or more BroadCast MultiCast Service that do not send simultaneously at neighbor cell in this sub-district are multiplexed into a SCCPCH CCTrCH.
Shown in 2, method comprises the following steps: according to an embodiment of the invention in conjunction with the accompanying drawings
Step 1: at each sub-district, from the frequency set that distributes f1, f2 determine a frequency among the f3}, f1 for example, as main carrier frequency, all the other are assistant carrier frequency;
Step 2: Secondary Common Control Physical Channel (SCCPCH) information that on main carrier frequency f1, sends pilot channel (DwPCH) information, Primary Common Control Physical Channel (PCCPCH) information and bearing call channel (PCCH) information, Common Control Channel (CCCH) information and CTCH Common Traffic Channel (CTCH).
Step 3: { f1, f2 select one or more frequencies among the f3}, for example frequency f2 sends the SCCPCH public physic channel information of carrying MBMS point multipoint message traffic channel (MTCH) from the frequency set.
Embodiment two:
At the step 3 in example one method, the MTCH of neighbor cell and the SCCPCH that is carried thereof can also be configured on same carrier and the identical time slot.For example shown in Figure 3, the TS4 time slot of the carrier frequency f2 of neighbor cell C1, C2 and C3 all disposes the SCCPCH of carrying MTCH.
Embodiment three:
At the step 3 in example one method, the one or more MBMS business that send simultaneously in adjacent a plurality of sub-districts can independently can also be disposed a SCCPCHCCTrCH respectively, perhaps be multiplexed into a SCCPCH CCTrCH.For example, professional S1 of MBMS and S2 all send with the PTM pattern at neighbor cell C1 and C2, then are S1 and S2 SCCPCH CCTrCH of separate configurations respectively, shown in accompanying drawing 4a; Perhaps that S1 and S2 is multiplexing at a SCCPCH CCTrCH, shown in accompanying drawing 4b.
Embodiment four:
At the step 3 in example one method, can also perhaps be multiplexed into a SCCPCH CCTrCH with only in this sub-district but the one or more MBMS business that do not send simultaneously at neighbor cell can independently dispose a SCCPCH CCTrCH respectively.For example, professional S3 of MBMS and S4 only send with the PTM pattern at current area C1, then are S3 and S4 SCCPCH CCTrCH of separate configurations respectively, and be perhaps that S3 and S4 is multiplexing on a SCCPCH CCTrCH.
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 (7)
1. the public channel configuration method of a multi-carrier frequency cell is characterized in that, described method
May further comprise the steps:
Step 1 is determined a frequency as main carrier frequency for each sub-district from a plurality of frequencies that distribute, other frequencies are as assistant carrier frequency;
Step 2 sends the Secondary Common Control Physical Channel information of pilot frequency channel information, Primary Common Control Physical Channel information, bearing call channel information, Common Control Channel information and CTCH Common Traffic Channel on described main carrier frequency; And
Step 3, each frequency service load condition according to BroadCast MultiCast Service characteristic and/or described sub-district is selected described main carrier frequency and/or one or more assistant carrier frequency, sends the Secondary Common Control Physical Channel information of carrying broadcast multi-broadcasting point multipoint message traffic channel and/or described broadcast multi-broadcasting point multipoint message traffic channel then on described main carrier frequency and/or one or more assistant carrier frequency.
2. public channel configuration method according to claim 1, it is characterized in that the described broadcast multi-broadcasting point multipoint message traffic channel of neighbor cell and/or the Secondary Common Control Physical Channel information configuration of described broadcast multi-broadcasting point multipoint message traffic channel are on different carrier frequency and different time-gap.
3. public channel configuration method according to claim 1, it is characterized in that the described broadcast multi-broadcasting point multipoint message traffic channel of neighbor cell and/or the Secondary Common Control Physical Channel information configuration of described broadcast multi-broadcasting point multipoint message traffic channel are on same carrier and identical time slot.
4. public channel configuration method according to claim 1 is characterized in that, disposes the coded composite transport channel of a Secondary Common Control Physical Channel for the one or more BroadCast MultiCast Service that send in adjacent a plurality of sub-districts simultaneously.
5. public channel configuration method according to claim 1 is characterized in that, the one or more BroadCast MultiCast Service that send in adjacent a plurality of sub-districts simultaneously is multiplexed into the coded composite transport channel of a Secondary Common Control Physical Channel.
6. public channel configuration method according to claim 1 is characterized in that, disposes the coded composite transport channel of a Secondary Common Control Physical Channel for the one or more BroadCast MultiCast Service that only do not send simultaneously at neighbor cell in this sub-district.
7. public channel configuration method according to claim 1 is characterized in that, only the one or more BroadCast MultiCast Service that do not send simultaneously at neighbor cell in this sub-district are multiplexed into the coded composite transport channel of a Secondary Common Control Physical Channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101457946A CN101193429B (en) | 2006-11-21 | 2006-11-21 | Public channel configuration method for multi-carrier cell |
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| CN2006101457946A CN101193429B (en) | 2006-11-21 | 2006-11-21 | Public channel configuration method for multi-carrier cell |
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| CN101193429A CN101193429A (en) | 2008-06-04 |
| CN101193429B true CN101193429B (en) | 2010-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101677427B (en) * | 2008-09-19 | 2014-09-10 | 中兴通讯股份有限公司 | Updating method of broadcast message in large bandwidth and multi-carrier system |
| CN102014502A (en) * | 2009-09-04 | 2011-04-13 | 华为技术有限公司 | Remote covering method and base station |
| CN111181611A (en) * | 2019-12-25 | 2020-05-19 | 深圳大学 | Data transmission processing method and system |
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| US20030088695A1 (en) * | 2001-10-20 | 2003-05-08 | Samsung Electronics Co., Ltd. | Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service |
| US6792258B1 (en) * | 1999-04-15 | 2004-09-14 | British Broadcasting Corporation | Diversity reception method and diversity receivers |
| US20050286472A1 (en) * | 2004-06-14 | 2005-12-29 | Lg Electronics Inc. | Point-to-multipoint service medium access control entity structure |
| CN1735258A (en) * | 2004-08-10 | 2006-02-15 | 中兴通讯股份有限公司 | Multi-carrier frequency cell major and minor carrier frequency adjusting method in TD-SCDMA system |
| CN1788437A (en) * | 2003-05-14 | 2006-06-14 | 三星电子株式会社 | Apparatus and method for transmitting/receiving control information for supporting multimedia broadcast/multicast service |
| CN1816212A (en) * | 2005-02-05 | 2006-08-09 | 上海贝尔阿尔卡特股份有限公司 | Transmitting-receiving method of multi-media broadcasting business, and realizing apparatus therefor |
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- 2006-11-21 CN CN2006101457946A patent/CN101193429B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6792258B1 (en) * | 1999-04-15 | 2004-09-14 | British Broadcasting Corporation | Diversity reception method and diversity receivers |
| US20030088695A1 (en) * | 2001-10-20 | 2003-05-08 | Samsung Electronics Co., Ltd. | Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service |
| CN1788437A (en) * | 2003-05-14 | 2006-06-14 | 三星电子株式会社 | Apparatus and method for transmitting/receiving control information for supporting multimedia broadcast/multicast service |
| US20050286472A1 (en) * | 2004-06-14 | 2005-12-29 | Lg Electronics Inc. | Point-to-multipoint service medium access control entity structure |
| CN1735258A (en) * | 2004-08-10 | 2006-02-15 | 中兴通讯股份有限公司 | Multi-carrier frequency cell major and minor carrier frequency adjusting method in TD-SCDMA system |
| CN1816212A (en) * | 2005-02-05 | 2006-08-09 | 上海贝尔阿尔卡特股份有限公司 | Transmitting-receiving method of multi-media broadcasting business, and realizing apparatus therefor |
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