CN101459467B - Method for transmitting BCCH under non-CELL_DCH status - Google Patents
Method for transmitting BCCH under non-CELL_DCH status Download PDFInfo
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- CN101459467B CN101459467B CN2007101985532A CN200710198553A CN101459467B CN 101459467 B CN101459467 B CN 101459467B CN 2007101985532 A CN2007101985532 A CN 2007101985532A CN 200710198553 A CN200710198553 A CN 200710198553A CN 101459467 B CN101459467 B CN 101459467B
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention provides a method of transmitting broadcast control channels under the state of non-district dedicated control channel, used in a time-division synchronous code-division multi-address multi-carrier-wave system, which comprises the following steps: firstly, fixedly allocating the carrier waves in which a broadcast control channel is located in a network side when the broadcast control channel BCCH transmits through a high-speed downstream sharing channel HS-DSCH, and informing the carrier wave in which the broadcast control channel is located to user equipment UE, then detecting and receiving the broadcast control channel by the UE on the carrier wave in which the broadcast control channel is located. The method can make the UE definitely search on the fixed carrier wave through transmitting and fixing the BCCH on a carrier wave in the district, no needing to blindly search specific H-RNTI of the BCCH channel on the carrier wave, thereby reducing the complexity and the power consumption of a terminal, and increasing information efficiency and range of the updating instruction of the network side to the UE system.
Description
Technical field
The present invention relates to field of wireless communication TD-SCDMA (Time Division Synchronous CodeDivision Multiple Access, be called for short TD-SCDMA, TD SDMA) send the method for BCCH (Broadcast Control Channel) in the multicarrier system under a kind of non-CELL _ DCH (residential quarter _ Dedicated Control Channel) state.
Background technology
3GPP (3G (Third Generation) Moblie partnership) has finished the standardization effort that CELL_FACH (cell forward access channel) state strengthens in WCDMA (Wideband Code Division Multiple Access (WCDMA) access) system at present.The CELL_FACH state strengthens by introducing the packet data transmission performance that HS-DSCH (high speed descending sharing channel) transmission channel strengthens this state at the CELL_FACH state, makes it obtain less packet transfer delay and higher transmission rate.This mechanism also has been incorporated into paging and the transfer of data under URA_PCH (UTRAN Route Area paging channel) and CELL_PCH (cell paging channel) state.
Down channel mapping relations under the non-CELL _ DCH state after the enhancing as shown in Figure 1.Wherein, originally all be mapped on the HS-DSCH channel based on CCCH (Common Control Channel), the BCCH of FACH (forward access channel) transmission; Originally PCCH (Paging Control Channel) channel based on PCH (paging channel) transmission also was mapped on the HS-DSCH channel.The BCCH channel here mainly carries the system information that defines in RRC (Radio Resource control) agreement and changes Indication message, is used for the informing user terminal updating system information, and this information is to keeping UE and internetwork system broadcast information extremely important synchronously.Content on the BCCH need to be at whole Cell Broadcast CB, and the UE in the residential quarter except being in the URA_PCH state may receive.In the version before Rel-7, this channel mapping is to the FACH transmission channel, by the transmission of S-CCPCH (auxiliary Common Control Channel) physical channel.When the BCCH after the enhancing is mapped on the HS-DSCH, specific H-RNTI (high speed descending sharing channel-Radio Network Temporary Identifier of BCCH of network side definition, HS-DSCH Radio Network Temporary Identity, hereinafter to be referred as H-RNTI), UE comes the indication of receiving system information change by detect this H-RNTI at HS-SCCH (High-Speed Shared Control Channel).Like this, in a TTI (Transmission Time Interval), UE need to detect 2 H-RNTI, and one is the specific H-RNTI of BCCH, and one is for the relevant signaling of own service or the H-RNTI of data receiver.
Because a series of enhancing technology of HS-DSCH itself (as based on the scheduling of Node B, HARQ etc.) can effectively improve data transfer rate, thereby will significantly improve signaling delay and data transfer rate under CELL_FACH, CELL_PCH, the URA_PCH state behind the introducing HS-DSCH.TD-SCDMA (TD SDMA) multicarrier system also considers to carry out similar enhancing.
When in the TD-SCDMA system, the CELL_FACH state being strengthened, need to formulate the CELL_FACH enhanced scheme that be suitable for the TD-SCDMA system on the basis of using for reference the WCDMA achievement in research.TD-SCMDA and WCDMA have very large difference aspect system architecture.The TD-SCDMA system is multicarrier system, a main carrier and many auxiliary carrier waves are arranged in the residential quarter, the main carrier bearing public control channel, such as P-CCPCH (Primary Common Control Physical Channel), PRACH (Random Access Channel), S-CCPCH (auxiliary Common Control Channel), FAPCH (confirming fast physical channel) and uplink and downlink pilot channel, also can the bearing part Traffic Channel; An auxiliary carrier wave bearer service channels.In existing system, the UE of CELL_FACH, CELL_PCH, URA_PCH state resides on the main carrier, when these states are strengthened, need to consider HS-DSCH transmission plan under these states based on the multicarrier framework of TD-SCDMA.
Summary of the invention
The technical problem to be solved in the present invention provides the method that sends Broadcast Control Channel in a kind of TD-SCDMA multicarrier system under the non-CELL _ DCH state.
In order to solve the problems of the technologies described above, the invention provides the method that sends Broadcast Control Channel under a kind of non-cell-specific control channel state, be used in the TD SDMA multicarrier system, comprise following steps:
When (a) BCCH channel of broadcast control transmits by high speed downlink shared channel HS-DSCH, the carrier wave at network side fixed configurations Broadcast Control Channel place, and with the carrier wave notifying user equipment UE at described Broadcast Control Channel place;
(b) described UE receives described Broadcast Control Channel at the carrier detect at described Broadcast Control Channel place.
Further, said method also can have following characteristics, and described Broadcast Control Channel place carrier wave is main carrier or auxiliary carrier wave.
Further, said method also can have following characteristics, in the described step (a), also notify described UE with the specific high speed descending sharing channel of described Broadcast Control Channel-Radio Network Temporary Identifier H-RNTI, in the described step (b), described UE detects described H-RNTI by the carrier wave at described Broadcast Control Channel place, receives described Broadcast Control Channel.
Further, said method also can have following characteristics, and described network side transmits the carrier wave at the specific H-RNTI of described BCCH and described BCCH place to described UE by the cell system broadcast message.
Further, said method also can have following characteristics, and in the described step (a), described Broadcast Control Channel place carrier wave uses the transmission of the fixing described BCCH of high-speed shared control channel HS-SCCH channel dispatch.
Further, said method also can have following characteristics, and described network side uses system's stipulated form or signal deployment with described fixing HS-SCCH channel notification UE.
Further, said method also can have following characteristics, specifically comprises following steps in the described step (b):
(b1) described UE detects the high-speed shared control channel HS-SCCH on the described carrier wave in a Transmission Time Interval, when detecting the specific H-RNTI of described BCCH, and execution in step (b2);
(b2) described UE receives BCCH according to the indication of described HS-SCCH channel and is mapped to system information on the relevant high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH and changes Indication message and upgrade cell system information.
Further, said method also can have following characteristics, and described UE resides in main carrier or auxiliary carrier wave, when the resident carrier wave of single-receiver UE and Broadcast Control Channel place carrier wave are inconsistent, adopts the method for time division frequency hopping to receive Broadcast Control Channel place carrier wave.
Further, said method also can have following characteristics, and described UE resides in main carrier or auxiliary carrier wave, when the resident carrier wave of multi-receiver UE and Broadcast Control Channel place carrier wave are inconsistent, adopts a receiver to receive Broadcast Control Channel place carrier wave.
The present invention is by being fixed on BCCH transmission in the residential quarter method on the carrier wave, so that UE can search for to fixing carrier wave in the non-CELL _ DCH attitude, and do not need blindly at the specific H-RNTI of all carrier wave search BCCH channels, reduce complexity and the power consumption of terminal, and improved network side to UE system update indication notice efficient and scope.
Description of drawings
Fig. 1 is the channel mapping relation that the HS-DSCH transmission is relevant in the CELL_FACH enhancing technology;
Fig. 2 is the method flow diagram that sends Broadcast Control Channel under the non-CELL _ DCH state of the present invention;
Fig. 3 is that UE receives the flow chart by HS-DSCH transmission BCCH;
Fig. 4 is a concrete HS-DSCH transmitting-receiving procedure chart relevant with the method for the invention.
Embodiment
In multi-carrier TD-SCDMA system, UE receiver ability and disunity, UE with single carrier receiving ability is arranged, also the UE of multi-carrier reception ability is arranged, when the HS-DSCH channel is incorporated into CELL_FACH, CELL_PCH, URA_PCH state, need to consider the ability of UE in the residential quarter.In existing system, under the multi-carrier TD-SCDMA system, minimum terminal capability is to receive 2 data on the carrier wave by the time division frequency hopping mode.
The non-CELL _ DCH state of indication of the present invention comprises a plurality of states such as Idle state, CELL_FACH, CELL_PCH, URA_PCH.Wherein, by agreement of the prior art, the reception of BCCH channel only limits to the UE of CELL_FACH, CELL_PCH state.
The method of the invention is as shown in Figure 2:
This configuration can be revised, and whether UE identifies by the information change in the detection system information and change.
The carrier wave at BCCH transmission place can be main carrier or certain auxiliary carrier wave.Because in the existing system, what terminal can not timing carries out the measurement of beacon channel and the renewal of cell system information to main carrier, thereby is recommended in and sets up the HS-DSCH resource that the BCCH transmission is correlated with on the main carrier.
The configuration information relevant with the BCCH transmission of network side broadcasting also comprises: the configuration information of the control channel that the HS-DSCH transmission is relevant on the described carrier wave comprises HS-SCCH channel, HS-SICH (high-speed shared information channel) channel etc.A kind of configuration mode is shown in Table 1.Above-mentioned configuration information is transferred to UE by the cell system broadcast message.
The configuration of table 1HS-PDSCH multicarrier
| Information element | Need | Type | Explain |
| The HS-DSCH public information | |||
| Channel configuration | 1.. maxTDD128Carrier | MaxTDD128Carrier: the maximum carrier number that system supports | |
| The HS-SCCH configuration | Essential | The physical channel configuration | Article 1, or many HS-SCCH channel configuration informations, the configuration information of channel comprises the configurations such as time slot, code channel, intermediate code |
| HS-PDSCH intermediate code configuration information | Essential | The intermediate code configuration | |
| Frequency | Essential | Carrier wave place frequency configuration | |
| Whether carry BCCH | Boolean type: be/no | Be: this frequency carrying BCCH channel; No: this frequency does not carry the BCCH channel | |
| The specific H-RNTI of BCCH | Essential | 16 Bit Strings | The H-RNTI of configuration BCCH special use |
| Omit |
In the described configuration of table 1, comprised the relevant configuration information of CELL_FACH state lower channel, wherein whether the information element by Boolean type " carries BCCH " and indicates whether to carry the BCCH channel on certain frequency.Also configure the specific H-RNTI of BCCH by " the specific H-RNTI of BCCH " simultaneously.
In order further to simplify terminal to the search time of HS-SCCH channel, can also fix the transmission of dispatching the BCCH channel with a HS-SCCH channel, such as article one HS-SCCH channel on the frequency of agreement carrying BCCH.This information can adopt system's stipulated form or signal deployment notice UE.
Receive the user terminal of BCCH channel for needs, Traffic Channel may be on other carrier waves, and the HS-DSCH that user terminal needs the timesharing frequency hopping to receive on the carrier wave of BCCH channel place transmits.
The receiving course of UE specifically comprises the steps, as shown in Figure 3:
301:UE is according to detecting the HS-SCCH control channel on the carrier wave that is configured to the BCCH place of system information;
302: when comprising the specific H-RNTI of BCCH in the HS-SCCH control channel, UE receives relevant HS-PDSCH channel according to the indication of HS-SCCH channel behind specific timing, decoding obtains the rrc layer system information and changes Indication message, namely receives the system information that BCCH is mapped on the relevant HS-PDSCH and changes Indication message;
303:UE changes Indication message according to system information and upgrades cell system information.
Fig. 4 is a concrete HS-DSCH transmitting-receiving procedure chart relevant with the method for the invention, namely in strengthening the FACH technology, fixedly in the situation of bcch carrier, how UE realizes the instantiation of professional and BCCH receiving course to system broadcasts under the condition of single-receiver (multi-receiver).In the following embodiments, in a TTI (Transmission Time Interval), UE need to detect 2 H-RNTI, and one is the specific H-RNTI of BCCH, and one is for the relevant signaling of own service or the H-RNTI of data receiver:
For the UE of single-receiver, in a TTI:
401:UE detects the upper one's own dedicated H-RNTI of HS-SCCH (frequency A), will receive the business datum that HS-PDSCH (frequency C) sends according to the indication on the HS-SCCH;
402:UE need to be according to the configuration information of BCCH in the system broadcast information, time division frequency hopping is to the carrier wave B of carrying BCCH channel, detect the upper specific H-RNTI of BCCH of HS-SCCH (frequency B), when UE detects the upper specific H-RNTI of BCCH of HS-SCCH (frequency B), will receive the system information variation Indication message that HS-PDSCH (frequency D) sends according to the indication on the HS-SCCH.
If the carrier wave at BCCH channel place carrier wave and professional place is the same, then UE does not need frequency hopping.
For the UE of multi-receiver, in a TTI:
401:UE uses one of them receiver to be exclusively used in the relevant signaling of own service or the reception of data, detect the upper one's own dedicated H-RNTI of HS-SCCH (frequency A), will receive the business datum that HS-PDSCH (frequency C) sends according to the indication on the HS-SCCH;
40: simultaneously, UE uses the another one receiver to be exclusively used in the reception that the BCCH system information changes Indication message, configuration information according to BCCH in the system broadcast information, on the carrier wave B of carrying BCCH channel, detect the upper specific H-RNTI of BCCH of HS-SCCH (frequency B), when UE detects the upper specific H-RNTI of BCCH of HS-SCCH (frequency B), will receive the system information variation Indication message that HS-PDSCH (frequency D) sends according to the indication on the HS-SCCH.
Frequency A described here, B, C, D can be the same or different.
Claims (9)
1. send the method for Broadcast Control Channel under non-residential quarter _ Dedicated Control Channel state, be used in the TD SDMA multicarrier system, comprise following steps:
When (a) BCCH channel of broadcast control transmits by high speed downlink shared channel HS-DSCH, the carrier wave at network side fixed configurations Broadcast Control Channel place, and with the carrier wave notifying user equipment UE at described Broadcast Control Channel place;
(b) described UE receives described Broadcast Control Channel at the carrier detect at described Broadcast Control Channel place;
Described non-residential quarter _ Dedicated Control Channel state is CELL-PCH and the CELL-FACH state of user equipment (UE).
2. the method for claim 1 is characterized in that, described Broadcast Control Channel place carrier wave is main carrier or auxiliary carrier wave.
3. the method for claim 1, it is characterized in that, in the described step (a), also notify described UE with the specific high speed descending sharing channel of described Broadcast Control Channel-Radio Network Temporary Identifier H-RNTI, in the described step (b), described UE detects described H-RNTI by the carrier wave at described Broadcast Control Channel place, receives described Broadcast Control Channel.
4. such as claim 1 or 2 or 3 described methods, it is characterized in that, described network side transmits the carrier wave at the specific H-RNTI of described BCCH and described BCCH place to described UE by the cell system broadcast message.
5. the method for claim 1 is characterized in that, in the described step (a), described Broadcast Control Channel place carrier wave uses the transmission of the fixing described BCCH of high-speed shared control channel HS-SCCH channel dispatch.
6. method as claimed in claim 5 is characterized in that, described network side uses system's stipulated form or signal deployment with described fixing HS-SCCH channel notification UE.
7. the method for claim 1 is characterized in that, specifically comprises following steps in the described step (b):
(b1) described UE detects the high-speed shared control channel HS-SCCH on the described carrier wave in a Transmission Time Interval, when detecting the specific H-RNTI of described BCCH, and execution in step (b2);
(b2) described UE receives BCCH according to the indication of described HS-SCCH channel and is mapped to system information on the relevant high-speed physical downlink shared channel (HS-PDSCH) HS-PDSCH and changes Indication message and upgrade cell system information.
8. the method for claim 1 is characterized in that, described UE resides in main carrier or auxiliary carrier wave, when the resident carrier wave of single-receiver UE and Broadcast Control Channel place carrier wave are inconsistent, adopts the method for time division frequency hopping to receive Broadcast Control Channel place carrier wave.
9. the method for claim 1 is characterized in that, described UE resides in main carrier or auxiliary carrier wave, when the resident carrier wave of multi-receiver UE and Broadcast Control Channel place carrier wave are inconsistent, adopts a receiver to receive Broadcast Control Channel place carrier wave.
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| CN2007101985532A CN101459467B (en) | 2007-12-11 | 2007-12-11 | Method for transmitting BCCH under non-CELL_DCH status |
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| CN2007101985532A CN101459467B (en) | 2007-12-11 | 2007-12-11 | Method for transmitting BCCH under non-CELL_DCH status |
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| CN101459467B true CN101459467B (en) | 2013-02-27 |
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| KR101740019B1 (en) * | 2009-11-10 | 2017-05-26 | 주식회사 팬택 | Apparatus and Method for transmitting/receiving System Information of Multiple Component Carrier |
| CN102227925A (en) * | 2010-01-08 | 2011-10-26 | 华为技术有限公司 | System information update method and device |
| CN102783064B (en) * | 2010-03-11 | 2016-07-06 | Lg电子株式会社 | Control method for channel allocation and device |
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| CN1246264A (en) * | 1997-01-30 | 2000-03-01 | 诺基亚电信公司 | Channel allocation in mobile communications system |
| CN1918923A (en) * | 2004-02-13 | 2007-02-21 | 艾利森电话股份有限公司 | Direct transition to cell dch |
| CN1921642A (en) * | 2005-08-26 | 2007-02-28 | 华为技术有限公司 | Method for realizing informing of broadcast multicast service |
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2007
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1246264A (en) * | 1997-01-30 | 2000-03-01 | 诺基亚电信公司 | Channel allocation in mobile communications system |
| CN1918923A (en) * | 2004-02-13 | 2007-02-21 | 艾利森电话股份有限公司 | Direct transition to cell dch |
| CN1921642A (en) * | 2005-08-26 | 2007-02-28 | 华为技术有限公司 | Method for realizing informing of broadcast multicast service |
Non-Patent Citations (4)
| Title |
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| 3GPP.Universal Mobile Telecommunications System (UMTS) |
| 3GPP.Universal Mobile Telecommunications System (UMTS) Radio Resource Control (RRC);Protocol specification.《ETSI TS 125 331 V6.15.0》.2007, * |
| Protocol specification.《ETSI TS 125 331 V6.15.0》.2007, |
| Radio Resource Control (RRC) |
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