CN101237683B - Method for mobile communication terminal to simultaneously receive TV signals and BCH/PICH - Google Patents
Method for mobile communication terminal to simultaneously receive TV signals and BCH/PICH Download PDFInfo
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- CN101237683B CN101237683B CN2007100369961A CN200710036996A CN101237683B CN 101237683 B CN101237683 B CN 101237683B CN 2007100369961 A CN2007100369961 A CN 2007100369961A CN 200710036996 A CN200710036996 A CN 200710036996A CN 101237683 B CN101237683 B CN 101237683B
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Abstract
The invention discloses a method through which a mobile communication terminal receives television signal and BCH/PICH at the same time, thereby ensuring that the mobile communication terminal can still receive system message and paging during receiving mobile phone signal and television signal without influencing the quality of the television signal. The invention, through allocating a time slot jump sequence correlative to a frame number, ensures that a terminal uses different time slots within different time quantums during receiving any one TS stream. The mode ensures that a time quantum which does not conflict with the time slot used by BCH/PICH exists during receiving television signal, thereby completing the reception of BCH/PICH within the time. The method is suitable to be used in the mobile communication field.
Description
Technical field
The present invention relates to a kind of mobile communication method of reseptance, relate in particular to a kind of in the TD-SCDMA network method of received television signal and BCH/PICH simultaneously.
Background technology
Along with the develop rapidly of wireless communication technology, people are strong day by day to the demand of mobile TV.But the relative broad of bandwidth that mobile TV is required has higher requirement to the data transmission capabilities of network.With respect to traditional 2.5G communication system, 3G has the higher speed and the availability of frequency spectrum, provides possibility for using based on the mobile TV of cordless communication network.
TD-SCDMA is a part of 3G technology standard.In order to increase network capacity, TD-SCDMA mainly uses the networking of N frequency mode at present, and each sub-district comprises a dominant frequency point and N-1 auxilliary frequency resource, and cell broadcast messages only sends on dominant frequency point TS0 time slot, and the TS0 time slot of auxilliary frequency does not use.User terminal (also being referred to as mobile communication terminal) UE can only put the various configuration informations of obtaining the sub-district the TS0 time slot from dominant frequency, and the voice-and-data business can be carried out on any one frequency, and the frequency of UE work is called working frequency points.As a multi-cell system, UE must receive the broadcast (BCH) of current persistent district and according to the regular paging receiving Indication message of network configuration (PICH).
TD-SCDMA is a time-division system, and it is unit to the reception operation of aerial signal with the time slot.Totally 7 of time slots that are used for bearer service among the TD-SCDMA, to the TS6 time slot, except that TS0 and TS1, the protection between all the other time slots (GP) at interval is 16 chip (also i.e. 12.5 microseconds) from the TS0 time slot, and the interval of TS6 and next frame TS0 also is the same.And common RF can only receive the signal of a frequency at one time, and before the signal that receives certain frequency, its inner PLL also must lock this frequency earlier.This process is not finished immediately, and RF switches to another frequency and normally receives from the signal that receives a frequency usually needs 20 to 30 microseconds, much larger than the GP length of 12.5 microseconds.Therefore, only overlapping under the situation of RF with one, two different frequency signals are when receiving, and the time slot of Shi Yonging can not be overlapping separately, can not closely abut against together.
The TDBS system is a kind of mobile TV standard, and it relies on the TD-SCDMA communication standard and N frequency point networking mode realizes.Can be assigned with from each TS stream (transport stream) of transport layer corresponding with specific physical resource and parameter so that receive the decode.Be used for the carrier frequency of the frequency of transmitting television signals as N frequency system, strict synchronism is concurrent between each base station penetrates identical content, on this frequency, form single frequency network (single frequency net), like this, portable terminal can be used as the multipath processing to the downstream signal that comes from different base station, carries out diversity reception.Received television signal is an independently process with respect to communication network, UE crosses over the communication cell border when received television signal do not need to switch, but with the idle pattern under equally do the sub-district gravity treatment, the system message that normally receives new sub-district is to obtain sub-district relevant information and configuration parameter.In addition, UE should be able to normally receive the paging from the TD-SCDMA network when received television signal, and this means also that when the spanning position district UE should normal executing location upgrade (location update) operation.
There is following problem in existing processing method: for the communication frequency, PICH issue may be in TS0 or TS2-6 any one generation.And TV signal also can issue any position between TS1-TS6.Like this, only with a cover RF time, if the two is overlapping or adjacent, UE just can't received television signal when receiving PICH, thereby causes quality of reception decline.If obliterated data causes key frame (I frame) the decoding failure in the upper video stream, then each frame picture after this all can be affected, will arrive when correctly receiving key frame (I frame) picture quality could recover always next time, wherein have long interruption, badly influence user's use experience.In addition, BCH is fixed on dominant frequency point TS0 and sends, and when TV signal uses TS6 to issue, also has same problem.
Summary of the invention
The objective of the invention is to address the above problem, the method of a kind of mobile communication terminal to simultaneously receive TV signals and BCH/PICH is provided, guarantee mobile communication terminal still normally receiving system message and paging when receiving the mobile TV signal, do not influence video quality simultaneously.
Technical scheme of the present invention is: the invention provides the method for a kind of mobile communication terminal to simultaneously receive TV signals and cell broadcast messages/paging indicating message, comprising:
In TS stream corresponding physical channel configuration, for each channel is provided with a time slot hopping sequences collection, this time slot hopping sequences collection comprises the time slot hopping sequences that several are associated with frame number, each time slot hopping sequences is to a TS stream on should channel, so that this mobile communication terminal uses different time slots in the different time periods when the arbitrary TS of reception flows;
Transmitting terminal is selected a sequence sets for use on each channel, specify employed time slot hopping sequences collection, sequence numbering and saltus step frame number side-play amount when each TS stream corresponding physical channel parameter of broadcasting, and by paging indicating message paging mobile communication terminal;
This mobile communication terminal obtains each channel corresponding physical channel configuration, solves target channel employed time slot hopping sequences collection and sequence numbering;
This mobile communication terminal was judged before receiving cell broadcast messages or paging indicating message, if this cell broadcast messages/paging indicating message does not conflict with this TV signal, then receive cell broadcast messages/paging indicating message, if conflict then preferential received television signal mutually, and switch to another kind of time slot allocation scheme in this time slot hopping sequences when waiting for time slot saltus step next time, rejudge again and whether conflict.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, this time slot hopping sequences collection meets the following conditions:
(1) each the time slot hopping sequences in the set is all having definition on the frame number arbitrarily, but on different frame numbers, the number of time slots that same TS stream is used can be different;
(2) each time slot hopping sequences comprises at least a time slot allocation scheme, wherein have only a kind of time slot allocation scheme to use TS6 slot transmission data at the most, when also promptly using any time slot allocation scheme of in this sequence other, the Cell Broadcast CB signal can both normally receive;
(3) on any specific frame number, the time slot that any two the time slot hopping sequences in the set are used does not overlap mutually;
(4) on any specific frame number, any one time slot in the TS1-TS6 time slot all can be used by a certain sequence of time slots that the time slot hopping sequences is concentrated;
(5) when current frame number can be divided exactly by System information block repetition period and paging indicating message transmission cycle simultaneously, the time slot saltus step takes place, the next time slot allocation scheme of selecting to be right after the current time slots allocative decision in this time slot hopping sequences is carried out transfer of data.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, when base station and terminal receive, equal descending time slot positions of calculating every frame correspondence according to this time slot hopping sequences collection on the channel.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, the time slot hopping sequences collection compatibility that the sending time slots of this paging indicating message of transmitting terminal and current mobile communication terminal received television signal are used, also promptly to any one time slot hopping sequences, in certain time period, the time slot of this paging indicating message and this TV signal also non-conterminous the connecing of neither conflicting.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, this paging indicating message is fixed on first time slot and sends.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message wherein, is characterized in that, should continue two DRX cycles at least by this paging indicating message paging mobile communication terminal.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, if the transmission cycle of paging indicating message is less than the repetition period of cell broadcast messages, then continue the indication paging information in the paging indicating message of a plurality of DRX cycles, the summation of those DRX cycle duration is greater than the repetition period of cell broadcast messages.
The above-mentioned mobile communication terminal to simultaneously receive TV signals and the method for cell broadcast messages/paging indicating message, wherein, the span of the repetition period of SIB is 4～256 frames in the cell broadcast messages.
The present invention contrasts prior art following beneficial effect: flow in the pairing physical channel configuration at TS, the present invention is the fixing time slot position of each TS flow distribution, but distribute a time slot hopping sequences that is associated with frame number, make when UE receives any one TS stream, in different time sections, can use different time slots.By method of the present invention, guarantee in receiving the TV process necessarily have some time periods not conflict, thereby in this time period, finish the reception of BCH/PICH with the time slot that BCH/PICH uses.
Description of drawings
Fig. 1 is the schematic diagram of mobile communication terminal paging duration.
Fig. 2 is the schematic diagram of a preferred embodiment of time slot hopping sequences collection of the present invention.
Fig. 3 is the process chart of mobile communication terminal received television signal of the present invention and BCH/PICH.
Embodiment
The present invention is further described below in conjunction with the drawings and Examples contrast.
Basic principle of the present invention is: in TS stream corresponding physical channel configuration, not to be the fixing time slot position of each TS flow distribution, but distribute a time slot hopping sequences that is associated with frame number, make when mobile communication terminal receives any one TS stream, in the different time periods, use different time slots.This mode has guaranteed in the received television signal process necessarily have some time periods not conflict with the time slot that BCH/PICH uses, thereby can during this period of time finish the reception of BCH/PICH.
Based on above-mentioned principle, the invention provides the technical scheme of a kind of while received television signal and BCH/PICH.
At first, in TS stream corresponding physical channel configuration, need be a time slot hopping sequences of each channel allocation collection, this time slot hopping sequences collection comprises the time slot hopping sequences that several are associated with frame number.Each time slot hopping sequences is to a TS stream on should channel, so that this mobile communication terminal uses different time slots in the different time periods when receiving arbitrary TS stream.
A complete time slot hopping sequences collection must satisfy following conditions: each the time slot hopping sequences in (1) sequence sets is all having definition on the frame number arbitrarily, but on different frame numbers, the number of time slots that same TS stream is used can be different; (2) each time slot hopping sequences comprises at least a time slot allocation scheme, wherein have only a kind of time slot allocation scheme to use TS6 slot transmission data at the most, when also promptly using any time slot allocation scheme of in this sequence other, the Cell Broadcast CB signal can both normally receive; (3) on any specific frame number, the time slot that any two time slot hopping sequences are used does not overlap mutually; (4) on any specific frame number, any one time slot in time slot TS1～TS6 time slot all can be used by a certain sequence of time slots that the time slot hopping sequences is concentrated; (5) when current frame number can be divided exactly by SIB repetition period and PICH transmission cycle simultaneously, the time slot saltus step takes place, the next time slot allocation scheme of selecting to be right after the current time slots allocative decision in this time slot hopping sequences is carried out transfer of data.
Then, transmitting terminal is selected a time slot hopping sequences collection for use on each channel, when each TS stream corresponding physical channel parameter of broadcasting, specify employed time slot hopping sequences collection, sequence numbering and saltus step frame number side-play amount, and by PICH paging mobile communication terminal.
When base station, calculate the descending time slot position of every frame correspondence according to the time slot hopping sequences collection on the current channel.And, the time slot hopping sequences collection compatibility that the sending time slots of the paging indicating message of transmitting terminal and current mobile communication terminal received television signal are used, also promptly concerning any one time slot hopping sequences, in certain time period, the time slot of PICH and TV signal also non-conterminous the connecing of neither conflicting guaranteed that both can receive simultaneously.Preferably, in order to keep the independence of communication network and TV network, whenever PICH is fixed on TS0 sends.
Network side should continue two DRX cycles at least by PICH paging mobile communication terminal.If PICH sends the repetition period of cycle less than BCH, then should in the PICH of a plurality of DRX cycles, continue the indication paging information.The summation of these several DRX cycle duration should be greater than the BCH repetition period, so that mobile communication terminal has the chance of a subnormal paging receiving message at least.See also Fig. 1, the BCH SIB cycle is 256 among this embodiment, and the PICH cycle is 128, and therefore shown in the dash area among the figure, paging should continue three PICH times at least.
The repetition period of the System information block SIB of BCH is 4～4096 frames in current span, is no more than 128 frames in actual applications usually.Too much for fear of the oversize PICH repeating transmission number of times that causes of BCH cycle, preferable can be limited to 4～256 frames to its span.
At last, mobile communication terminal sees also Fig. 3 to the reception flow process of TV signal and BCH/PICH.
Step S1: the mobile communication terminal access network, obtain each channel corresponding physical channel configuration, solve time slot hopping sequences collection, sequence numbering and saltus step frame number side-play amount that target channel is used.
Step S2: judge whether to arrive time slot saltus step border.If arrive the border then change step S3 over to, otherwise change step S4 over to.
Step S3: switch to a kind of time slot configuration scheme under this sequence.
Step S4: whether need to receive PICH.If desired, then enter step S5, otherwise enter step S7.
Step S5: judge whether TV signal conflicts with the PICH reception.If do not conflict then enter step S6, otherwise enter step S10.
Step S6: receive PICH, change step S11 then over to.
Step S7: whether need to receive BCH.If then change step S8 over to, otherwise enter step S10.
Step S8: judge whether TV signal conflicts with the BCH reception.If do not conflict then enter step S9, otherwise change step S10 over to.
Step S9: receive BCH, change step S11 then over to.
Step S10: received television signal changes step S11 then over to.
Step S11: enter processing, change step S2 then over to next frame.
Can find out that from above-mentioned steps mobile communication terminal judged that before receiving BCH and PICH if BCH/PICH conflicts with TV signal, then preferential received television signal rejudges when waiting for time slot saltus step next time again and whether conflicts.
See also Fig. 2, Fig. 2 is an example of time slot hopping sequences collection.In this example, the SIB cycle of certain sub-district is 128 frames, and the PICH cycle is 256 frames, and according to aforementioned definition, time slot hopping sequences collection should be the cycle to carry out the time slot saltus step with 256 frames.Saltus step frame number side-play amount is 4, and TS stream takies three time slots.Can find out that from this example when frame number was 4～259, the TS of program 1 stream adopted first kind of time slot configuration scheme of sequence 1, the TS of program 2 stream adopts first kind of time slot configuration scheme of sequence 2 simultaneously.When frame number was 260～515, the TS of program 1 stream adopted second kind of time slot configuration scheme of sequence 1, and the TS of program 2 stream adopts second kind of time slot configuration scheme of sequence 2 simultaneously.Do the switching of a time slot configuration then every 256 frames.According to required the 5th the satisfied condition of time slot hopping sequences collection, for the sub-district of using this sequence sets, PICH can only be configured on these four time slots of TS0, TS2, TS5 and TS6.
Should understand, inventive point of the present invention had been to change in the past the fixedly allocative decision of time slot position, mode by conversion time slot allocation position guarantees that mobile communication terminal is in the received television signal process, exist some and the not afoul time period of the employed time slot of BCH/PICH, and utilize this time period to finish the reception of BCH/PICH.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (8)
1. the method for a TD-SCDMA terminal to simultaneously receive TV signals and cell broadcast messages or paging indicating message comprises:
In transport stream corresponding physical channel configuration, for each channel is provided with a time slot hopping sequences collection, this time slot hopping sequences collection comprises the time slot hopping sequences that several are associated with frame number, each time slot hopping sequences is to a transport stream on should channel, so that this mobile communication terminal when receiving arbitrary transport stream, uses different time slots in the different time periods;
Transmitting terminal is selected a sequence sets for use on each channel, specify employed time slot hopping sequences collection, sequence numbering and saltus step frame number side-play amount when each transport stream corresponding physical channel parameter of broadcasting, and by paging indicating message paging mobile communication terminal;
This mobile communication terminal obtains each channel corresponding physical channel configuration, solves target channel employed time slot hopping sequences collection and sequence numbering;
This mobile communication terminal was judged before receiving cell broadcast messages or paging indicating message, if this cell broadcast messages or paging indicating message do not conflict with this TV signal, then receive cell broadcast messages or paging indicating message, if conflict then preferential received television signal mutually, and switch to another kind of time slot allocation scheme in this time slot hopping sequences when waiting for time slot saltus step next time, rejudge again and whether conflict.
2. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message is characterized in that, this time slot hopping sequences collection meets the following conditions:
(1) each the time slot hopping sequences in the set is all having definition on the frame number arbitrarily, but on different frame numbers, the number of time slots that same transport stream is used can be different;
(2) each time slot hopping sequences comprises at least a time slot allocation scheme, wherein have only a kind of time slot allocation scheme to use TS6 slot transmission data at the most, when also promptly using any time slot allocation scheme of in this sequence other, the Cell Broadcast CB signal can both normally receive;
(3) on any specific frame number, the time slot that any two the time slot hopping sequences in the set are used does not overlap mutually;
(4) on any specific frame number, any one time slot in the TS1-TS6 time slot all can be used by a certain sequence of time slots that the time slot hopping sequences is concentrated;
(5) when current frame number can be divided exactly by System information block repetition period and paging indicating message transmission cycle simultaneously, the time slot saltus step takes place, the next time slot allocation scheme of selecting to be right after the current time slots allocative decision in this time slot hopping sequences is carried out transfer of data.
3. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message, it is characterized in that, when base station and terminal receive, equal descending time slot positions of calculating every frame correspondence according to this time slot hopping sequences collection on the channel.
4. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message, it is characterized in that, the time slot hopping sequences collection compatibility that the sending time slots of this paging indicating message of transmitting terminal and current mobile communication terminal received television signal are used, also promptly to any one time slot hopping sequences, in certain time period, the time slot of this paging indicating message and this TV signal also non-conterminous the connecing of neither conflicting.
5. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message is characterized in that, this paging indicating message is fixed on first time slot and sends.
6. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message is characterized in that, should continue two discontinuous receiving cycles at least by this paging indicating message paging mobile communication terminal.
7. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 6 and cell broadcast messages or paging indicating message, it is characterized in that, if the transmission cycle of paging indicating message is less than the repetition period of cell broadcast messages, then continue the indication paging information in the paging indicating message of a plurality of discontinuous receiving cycles, the summation of those discontinuous receiving cycle duration is greater than the repetition period of cell broadcast messages.
8. the method for TD-SCDMA terminal to simultaneously receive TV signals according to claim 1 and cell broadcast messages or paging indicating message is characterized in that, the span of the repetition period of system information block is 4～256 frames in the cell broadcast messages.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102204309B (en) | 2009-01-24 | 2014-08-20 | 华为技术有限公司 | Method and apparatus of communication |
| CN101541072B (en) * | 2009-04-16 | 2011-06-01 | 北京天碁科技有限公司 | Mobile communication terminal and dispatching method thereof |
| CN101951287B (en) * | 2010-09-07 | 2015-06-17 | 展讯通信（上海）有限公司 | Receiving conflict overcoming method for multi-card and multi-standby communication terminal |
| CN101969671B (en) * | 2010-10-21 | 2015-12-02 | 展讯通信（上海）有限公司 | A kind of method of resolving data conflicts and mobile terminal |
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Application publication date: 20080806 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xinji Lease (Tianjin) Co.,Ltd. Contract record no.: 2018990000196 Denomination of invention: Method for mobile communication terminal to simultaneously receive TV signals and BCH/PICH Granted publication date: 20110309 License type: Exclusive License Record date: 20180801 |
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