CN103178937A - Physical channel resource management method and base station - Google Patents
Physical channel resource management method and base station Download PDFInfo
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- CN103178937A CN103178937A CN2013100925544A CN201310092554A CN103178937A CN 103178937 A CN103178937 A CN 103178937A CN 2013100925544 A CN2013100925544 A CN 2013100925544A CN 201310092554 A CN201310092554 A CN 201310092554A CN 103178937 A CN103178937 A CN 103178937A
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Abstract
The embodiment of the invention discloses a physical channel resource management method and a base station. The physical channel resource management method comprises the following steps of: when the polymerization level of a current physical downlink control channel (PDCCH) is the highest polymerization level, obtaining the block bit error rate of the current PDCCH; and if the block bit error rate of the current PDCCH does not meet the preset requirement for the block bit error rate of a PDCCH, sending at least two PDCCH signals with completely same content and having the highest polymerization level to the same user equipment at the same transmission time interval. The technical scheme provided by the invention can effectively improve the demodulation performance of the PDCCH when the polymerization level of the PDCCH reaches the highest polymerization level.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of physical channel resources management method and base station.
Background technology
at Long Term Evolution (LTE, Long Term Evolution) in system, down physical channel has polytype, as: Physical Control Format Indicator Channel (PCFICH, Physical Control Format Indicator Channel), physical mixing retransmission indicating chanel (PHICH, Physical Hybrid-ARQ Indicator Channel), Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel) and Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) etc., the down physical channel of each type has corresponding Resource Management Algorithm.
Existing evolved base station (eNB, evolved Node B) provides the adaptive function of PDCCH polymerization rank to manage the PDCCH resource.In PDCCH polymerization rank adaptive process, eNB mainly adjusts PDCCH polymerization rank according to receiving terminal to the bLock error rate (BLER, Block Error Ratio) of PDCCH.At present, the LTE protocol definition PDCCH have 1,2,4,8 four kind of polymerization rank, the polymerization rank is higher, BLER is lower, the demodulation performance of PDCCH is also better.Because the LTE agreement has only defined four kinds of PDCCH polymerization ranks, therefore, if the polymerization rank of PDCCH is adjusted to the rear PDCCH of rank 8 still demodulation make mistakes, just can't improve by heightening PDCCH polymerization rank the demodulation performance of PDCCH this moment, this makes the demodulation performance of PDCCH to be guaranteed.
Summary of the invention
Various aspects of the present invention provide a kind of physical channel resources management method and base station, are used for improving the demodulation performance of PDCCH when the polymerization rank of PDCCH reaches maximum polymerization rank.
For solving the problems of the technologies described above, provide following technical scheme:
One aspect of the present invention provides a kind of physical channel resources management method, comprising:
When the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank, obtain the bLock error rate of above-mentioned current Physical Downlink Control Channel;
If the bLock error rate of above-mentioned current Physical Downlink Control Channel does not satisfy default Physical Downlink Control Channel bLock error rate requirement:
Sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
Based on first aspect present invention, in the possible implementation of the first, above-mentioned to send the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment be other physical downlink channel control signal of maximum polymer grade, comprising:
When again above-mentioned subscriber equipment being dispatched, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
Based on first aspect present invention, the perhaps possible implementation of the first of first aspect present invention, in the possible implementation of the second, if the bLock error rate of above-mentioned current Physical Downlink Control Channel does not satisfy default Physical Downlink Control Channel bLock error rate requirement, said method also comprises:
Permission distributes the Physical Downlink Control Channel resource of above-mentioned subscriber equipment at public search space.
Based on first aspect present invention, the perhaps possible implementation of the first of first aspect present invention, the perhaps possible implementation of the second of first aspect present invention, in the third possible implementation,
Above-mentioned physical channel resources management method also comprises:
If there is the first resource piece, block above-mentioned first resource piece, make when distributing shared channel, above-mentioned first resource piece is not assigned to subscriber equipment, wherein, above-mentioned first resource piece and global system for mobile communications GSM spectrum overlapping, and the interference noise power of above-mentioned first resource piece is over presetting the first threshold value.
Based on first aspect present invention, the perhaps possible implementation of the first of first aspect present invention, the perhaps possible implementation of the second of first aspect present invention, in the 4th kind of possible implementation,
Above-mentioned physical channel resources management method also comprises:
If there is the Secondary resource piece, block above-mentioned Secondary resource piece, make when distributing shared channel, above-mentioned Secondary resource piece is not assigned to subscriber equipment, wherein, above-mentioned Secondary resource piece and global system for mobile communications GSM spectrum overlapping, and the difference of the Reference Signal Received Quality RSRQ of above-mentioned Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range.
Based on first aspect present invention, the perhaps possible implementation of the first of first aspect present invention, the perhaps possible implementation of the second of first aspect present invention, in the 5th kind of possible implementation,
Above-mentioned physical channel resources management method also comprises:
If there is the information resources piece, block above-mentioned information resources piece, make when distributing shared channel, above-mentioned information resources piece is not assigned to subscriber equipment, wherein, above-mentioned information resources piece and global system for mobile communications GSM spectrum overlapping, and the difference of the value of the channel quality indicator (CQI) of above-mentioned information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range.
Based on first aspect present invention, the perhaps possible implementation of the first of first aspect present invention, the perhaps possible implementation of the second of first aspect present invention, in the 6th kind of possible implementation,
Above-mentioned physical channel resources management method also comprises:
If there is first user equipment, to above-mentioned first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of above-mentioned first user equipment and GSM carrier wave is over presetting the second threshold value.
Second aspect present invention provides a kind of base station, comprising:
Acquiring unit is used for obtaining the bLock error rate of current Physical Downlink Control Channel when the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank;
Transmitting element, when the bLock error rate that is used for the current Physical Downlink Control Channel that obtains at above-mentioned acquiring unit did not satisfy default Physical Downlink Control Channel bLock error rate and requires, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment was other physical downlink channel control signal of maximum polymer grade.
Based on second aspect present invention, in the possible implementation of the first,
Above-mentioned transmitting element specifically is used for: when again above-mentioned subscriber equipment being dispatched, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
Based on second aspect present invention, perhaps, the implementation that the first of second aspect present invention is possible, in the possible implementation of the second,
Above-mentioned base station also comprises:
Allocation units, when requiring for the satisfied default Physical Downlink Control Channel bLock error rate of the bLock error rate of the current Physical Downlink Control Channel that obtains at above-mentioned acquiring unit, the Physical Downlink Control Channel resource of distributing above-mentioned subscriber equipment at public search space.
Based on second aspect present invention, perhaps, the implementation that the first of second aspect present invention is possible, the perhaps possible implementation of the second of second aspect present invention, in the third possible implementation,
Above-mentioned base station also comprises:
Block the unit, be used for when having the first resource piece, block above-mentioned first resource piece, make when distributing shared channel, above-mentioned first resource piece is not assigned to subscriber equipment, wherein, above-mentioned first resource piece and global system for mobile communications GSM spectrum overlapping, and the interference noise power of above-mentioned first resource piece is over presetting the first threshold value.
Based on second aspect present invention, perhaps, the implementation that the first of second aspect present invention is possible, the perhaps possible implementation of the second of second aspect present invention, in the 4th kind of possible implementation,
Above-mentioned base station also comprises:
Block the unit, be used for when having the Secondary resource piece, block above-mentioned Secondary resource piece, make when distributing shared channel, above-mentioned Secondary resource piece is not assigned to subscriber equipment, wherein, above-mentioned Secondary resource piece and global system for mobile communications GSM spectrum overlapping, and the difference of the Reference Signal Received Quality RSRQ of above-mentioned Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range.
Based on second aspect present invention, perhaps, the implementation that the first of second aspect present invention is possible, the perhaps possible implementation of the second of second aspect present invention, in the 5th kind of possible implementation,
Above-mentioned base station also comprises:
Block the unit, be used for when having the information resources piece, block above-mentioned information resources piece, make when distributing shared channel, above-mentioned information resources piece is not assigned to subscriber equipment, wherein, above-mentioned information resources piece and global system for mobile communications GSM spectrum overlapping, and the difference of the value of the channel quality indicator (CQI) of above-mentioned information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range.
Based on the possible implementation of the second of second aspect present invention, in the 6th kind of possible implementation, above-mentioned allocation units also are used for: when having first user equipment, to above-mentioned first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of above-mentioned first user equipment and GSM carrier wave is over presetting the second threshold value.
therefore, in the embodiment of the present invention when the polymerization rank of current PDCCH is maximum polymerization rank, obtain the BLER of current PDCCH, when the BLER of current this PDCCH does not still satisfy default PDCCH BLER requirement, at same Transmission Time Interval (TTI, Transmission Time Interval) to same subscriber equipment (UE, User Equipment) sending the identical and polymerization rank of at least two contents is other PDCCH signal of maximum polymer grade, the gain of at least two PDCCH signals by above-mentioned transmission merges, can further improve the demodulation performance of PDCCH, thereby make the polymer grade at PDCCH be clipped to when reaching maximum polymerization rank, the demodulation performance of PDCCH also can be guaranteed.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is embodiment schematic flow sheet of a kind of physical channel resources management method provided by the invention;
Fig. 2 is another embodiment schematic flow sheet of a kind of physical channel resources management method provided by the invention;
Fig. 3 is one of a kind of base station provided by the invention example structure schematic diagram;
Fig. 4 is another example structure schematic diagram of a kind of base station provided by the invention.
Embodiment
The embodiment of the present invention provides a kind of physical channel resources management method and base station.
For make goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, but not whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making each other embodiment that obtain under the creative work prerequisite.
The below is described a kind of physical channel resources management method that the embodiment of the present invention provides, and sees also Fig. 1, and the physical channel resources management method in the embodiment of the present invention comprises:
101, when the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank, obtain the bLock error rate of current Physical Downlink Control Channel;
In embodiments of the present invention, control channel element (CCE, Control Channel Element) be the least resource unit of PDCCH transmission, the polymerization rank of PDCCH is relevant to code rate, namely when the polymerization rank of PDCCH is N, PDCCH of composition can get up N CCE polymerization for the expression base station.Illustrate, present LTE protocol definition 1,2,4,8 four kind of polymerization rank, the polymerization rank be 1 the expression PDCCH take 1 CCE, the polymerization rank be 2 the expression PDCCH take 2 CCE, the polymerization rank is that 4 expression PDCCH take 4 CCE, and the polymerization rank is that 8 expression PDCCH take 8 CCE.The polymerization rank of PDCCH is higher, and the BLER of PDCCH is also lower, and the demodulation performance of PDCCH is also better.
The polymerization rank of PDCCH can be adjusted according to the BLER of PDCCH in the base station, so that the BLER of this PDCCH satisfies default PDCCH bLock error rate requirement.For example, existing LTE protocol definition the PDCCH bLock error rate should be less than or equal to one of percentage, certainly, under different application scenarioss, also can set the requirement of PDCCH bLock error rate according to the application scenarios of reality, be not construed as limiting herein.
In embodiments of the present invention, when the polymerization rank of current Physical Downlink Control Channel was maximum polymerization rank, the base station obtained the bLock error rate of current Physical Downlink Control Channel.In one implementation, when the base station can be maximum polymerization rank in the polymerization rank of current Physical Downlink Control Channel, obtain the bLock error rate of current Physical Downlink Control Channel by the tolerance of the cyclic redundancy check (CRC, Cyclical Redundancy Check) on each transmission block of estimating Physical Downlink Control Channel.Certainly, the base station also can obtain by alternate manner the bLock error rate of current Physical Downlink Control Channel,, is not construed as limiting to this base station as notice after can measuring the bLock error rate of above-mentioned current Physical Downlink Control Channel by miscellaneous equipment herein.
If the BLER of 102 above-mentioned current PDCCH does not satisfy default PDCCH bLock error rate requirement,, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade;
Although the polymerization rank that improves PDCCH can reduce the BLER of PDCCH, yet, agreement has been stipulated the maximum polymerization rank of PDCCH, this means that the base station can not unrestrictedly improve the polymerization rank of PDCCH, namely, after the polymerization rank of current PDCCH reached maximum polymerization rank, the polymerization rank of PDCCH just can not have been improved again in the base station.
In the embodiment of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, it is other PDCCH signal of maximum polymer grade that the base station sends the identical and polymerization rank of at least two contents at same TTI to same UE, wherein, the number of the identical PDCCH signal of the content of above-mentioned transmission can be determined by the BLER of base station according to the PDCCH of current reality.in one implementation, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, the base station can be when this be dispatched UE, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, perhaps, in another kind of implementation, the base station also can reach in the polymerization rank of current PDCCH maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, when again UE being dispatched, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade.If send to same UE at same TTI after the identical and polymerization rank of at least two contents is other PDCCH signal of maximum polymer grade, the BLER of PDCCH does not still satisfy default PDCCH bLock error rate requirement, the base station can be when dispatching this UE again, the BLER of final PDCCH further increases the transmission number of above-mentioned PDCCH signal, so that can satisfy default PDCCH bLock error rate requirement.
Further, in embodiments of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, the base station can also allow to distribute the PDCCH resource at public search space except the specific search volume distribution of UE PDCCH resource.
therefore, in the embodiment of the present invention when the polymerization rank of current PDCCH is maximum polymerization rank, obtain the BLER of current PDCCH, when the BLER of current this PDCCH does not still satisfy default PDCCH BLER requirement, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, the gain of at least two PDCCH signals by above-mentioned transmission merges, can further improve the demodulation performance of PDCCH, thereby make the polymer grade at PDCCH be clipped to when reaching maximum polymerization rank, the demodulation performance of PDCCH also can be guaranteed.
The below is described the physical channel resources management method in the embodiment of the present invention with another embodiment, sees also Fig. 2, and the physical channel resources management method in the embodiment of the present invention comprises:
201, when the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank, obtain the bLock error rate of current Physical Downlink Control Channel;
In embodiments of the present invention, CCE is the least resource unit of PDCCH transmission, and the polymerization rank of PDCCH is relevant to code rate, namely when the polymerization rank of PDCCH is N, represents the base station PDCCH of composition that N CCE polymerization can be got up.
The polymerization rank of PDCCH can be adjusted according to the BLER of PDCCH in the base station, so that the BLER of this PDCCH satisfies default PDCCH bLock error rate requirement.
In embodiments of the present invention, when the polymerization rank of current Physical Downlink Control Channel was maximum polymerization rank, the base station obtained the bLock error rate of current Physical Downlink Control Channel.In one implementation, when the base station can be maximum polymerization rank in the polymerization rank of current Physical Downlink Control Channel, measure to obtain the bLock error rate of current Physical Downlink Control Channel by the CRC on each transmission block of estimating Physical Downlink Control Channel.Certainly, the base station also can obtain by alternate manner the bLock error rate of current Physical Downlink Control Channel,, is not construed as limiting to this base station as notice after can measuring the bLock error rate of above-mentioned current Physical Downlink Control Channel by miscellaneous equipment herein.
Whether the BLER that 202, judges current PDCCH satisfies default PDCCH bLock error rate requirement;
In embodiments of the present invention, the BLER of the current PDCCH that the base station obtains according to step 201, whether the BLER that judges current PDCCH satisfies default PDCCH bLock error rate requirement, if the BLER of current this PDCCH does not satisfy default PDCCH bLock error rate requirement, execution in step 203, if the BLER of current this PDCCH satisfies default PDCCH bLock error rate requirement, execution in step 204.
203, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade;
In the embodiment of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, it is other PDCCH signal of maximum polymer grade that the base station sends the identical and polymerization rank of at least two contents at same TTI to same UE, wherein, the number of the identical PDCCH signal of the content of above-mentioned transmission can be determined by the BLER of base station according to the PDCCH of current reality.in one implementation, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, the base station can be when this be dispatched UE, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, perhaps, in another kind of implementation, the base station also can reach in the polymerization rank of current PDCCH maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, when again UE being dispatched, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade.If send to same UE at same TTI after the identical and polymerization rank of at least two contents is other PDCCH signal of maximum polymer grade, the BLER of PDCCH does not still satisfy default PDCCH bLock error rate requirement, the base station can be when dispatching this UE again, the BLER of final PDCCH further increases the transmission number of above-mentioned PDCCH signal, so that can satisfy default PDCCH bLock error rate requirement.
Further, in embodiments of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, the base station can also allow to distribute the PDCCH resource at public search space except the specific search volume distribution of UE PDCCH resource.
204, sending a polymerization rank at same TTI to same UE is other PDCCH signal of maximum polymer grade.
therefore, at first reduce the BLER of PDCCH in the embodiment of the present invention by the polymerization rank of adjusting PDCCH, be clipped at the polymer grade of PDCCH and reach maximum polymerization rank and the BLER of current this PDCCH when still not satisfying default PDCCH BLER and requiring, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, the gain of at least two PDCCH signals by above-mentioned transmission merges, can further improve the demodulation performance of PDCCH, thereby make the polymer grade at PDCCH be clipped to when reaching maximum polymerization rank, the demodulation performance of PDCCH also can be guaranteed.
Refarming mechanism refers to frequency spectrum is re-used, and typically refers to low standard network and abdicates partial frequency spectrum in order to build high standard network.passing through global system for mobile communications (GSM, Global System of Mobile communication) network spectrum carries out in the process of the next newly-built LTE network of refarming, it need to be often the frequency spectrum in GSM reserve part refarming frequency range in local GSM traffic hot spot zone, share the GSM traffic to utilize the frequency spectrum in the refarming frequency range that keeps, under this scene, the buffer zone that just needs around GSM traffic hot spot zone planning a slice can isolate the GSM network LTE network common frequency is disturbed is (for ease of describing, the below is called buffer zone with above-mentioned buffer zone), and in buffer zone, the frequency spectrum that keeps for GSM can not be used for the GSM residential quarter, can not be used for the LTE residential quarter, thereby caused the waste of frequency spectrum resource.Therefore, on Fig. 1 or basis embodiment illustrated in fig. 2, the embodiment of the present invention also provides a kind of frequency spectrum planning mechanism, that is: the spectrum division of in advance the GSM residential quarter being used is basic frequency spectrum and spread-spectrum, and basic frequency spectrum is configured in beyond the protection bandwidth of LTE carrier wave as far as possible; Spread-spectrum can be configured in an end of LTE effective bandwidth, also can be at the two ends of LTE effective bandwidth; The corresponding frequency spectrum of physical uplink control channel (PUCCH, Physical Uplink Control Channel) of the frequency spectrum that use the GSM residential quarter and LTE residential quarter is not overlapping; Basic frequency spectrum resource is preferentially used in the GSM residential quarter, only when traffic carrying capacity surpasses certain limit, just brings into use the whole GSM frequency spectrum resources that comprise in spread-spectrum.Further, can also be to the physical layer channel sign (PCI of network in the embodiment of the present invention, Physical layer Channel Identification) re-start planning, make the PCI that uses the LTE residential quarter that is subject to the GSM co-channel interference can guarantee the PCFICH of this residential quarter and frequency domain resource and GSM frequency spectrum that PHICH takies not overlapping, guarantee that namely the PCFICH of this residential quarter and the resource particle that PHICH takies (RE, Resource Element) are not subjected to the GSM co-channel interference.
Further, on Fig. 1 or basis embodiment illustrated in fig. 2, the physical channel resources management method of the embodiment of the present invention comprises that also following one or more evade the method that GSM disturbs:
Method one:
If there is the first resource piece, block above-mentioned first resource piece, make when distributing shared channel, above-mentioned first resource piece is not assigned to UE, wherein, above-mentioned first resource piece and GSM spectrum overlapping, and the interference noise power of above-mentioned first resource piece is over presetting the first threshold value.
In a kind of implementation of this method, the interference noise power of each Resource Block of (as every 1 millisecond) and GSM spectrum overlapping can periodically be detected in the base station, if the interference noise power of certain Resource Block surpasses above-mentioned first threshold value that presets, think that this RB is subject to the interference from GSM, this RB is blocked in the base station, make the base station when distributing shared channel to UE, do not distribute this RB.
Method two:
If there is the Secondary resource piece, block above-mentioned Secondary resource piece, make when distributing shared channel, above-mentioned Secondary resource piece is not assigned to UE, wherein, above-mentioned Secondary resource piece and GSM spectrum overlapping, and the difference of the RSRQ on the Reference Signal Received Quality of above-mentioned Secondary resource piece (RSRQ, Reference Signal Receiving Quality) and full bandwidth is not in presetting the RSRQ difference range.
In a kind of implementation of this method, inside of base station by measure entirely with on RSRQ and with the RSRQ of overlapping each Resource Block of GSM, if the difference of the RSRQ on the RSRQ of certain Resource Block and full bandwidth is not in presetting the RSRQ difference range, think that this Resource Block is subject to from the interference of GSM stronger, this Resource Block is blocked in the base station, make the base station when distributing shared channel to UE, do not distribute this Resource Block.
Method three:
If there is the information resources piece, block above-mentioned information resources piece, make when distributing shared channel, above-mentioned information resources piece is not assigned to UE, wherein, above-mentioned information resources piece and GSM spectrum overlapping, and the difference of the value of the channel quality of above-mentioned information resources piece indication (CQI, Channel quality indicator) and the CQI on full bandwidth is not in presetting the CQI difference range.
In a kind of implementation of this method, inside of base station by measure entirely with on CQI and with the CQI of overlapping each Resource Block of GSM, if the difference of the RSRQ on the CQI of certain Resource Block and full bandwidth is not in presetting the CQI difference range, think that this Resource Block is subject to from the interference of GSM stronger, this Resource Block is blocked in the base station, make the base station when distributing shared channel to UE, do not distribute this Resource Block.
Method four:
If there is first user equipment, to above-mentioned first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of above-mentioned first user equipment and GSM carrier wave is over presetting the second threshold value.
In a kind of implementation of this method, UE measurement under base station cell has the interference signal intensity of the GSM carrier wave of co-channel interference, above-mentioned second threshold value that presets that surpasses when the valid signal strengths of the Serving cell of the interference signal intensity of the GSM carrier wave that records and this UE, the base station when this UE is distributed shared channel, is only distributed and the nonoverlapping Resource Block of GSM frequency spectrum.
The embodiment of the present invention also provides a kind of base station, and as shown in Figure 3, the base station 300 that the embodiment of the present invention provides comprises:
Acquiring unit 301 is used for obtaining the BLER of current PDCCH when the polymerization rank of current PDCCH is maximum polymerization rank;
In embodiments of the present invention, CCE is the least resource unit of PDCCH transmission, and the polymerization rank of PDCCH is relevant to code rate, namely when the polymerization rank of PDCCH is N, represents the base station PDCCH of composition that N CCE polymerization can be got up.The polymerization rank of PDCCH is higher, and the BLER of PDCCH is also lower, and the demodulation performance of PDCCH is also better.
The polymerization rank of PDCCH can be adjusted according to the BLER of PDCCH in base station 300, so that the BLER of this PDCCH satisfies default PDCCH bLock error rate requirement.
In embodiments of the present invention, when the polymerization rank of current Physical Downlink Control Channel was maximum polymerization rank, acquiring unit 301 obtained the bLock error rate of current Physical Downlink Control Channel.In one implementation, when acquiring unit 301 can be maximum polymerization rank in the polymerization rank of current Physical Downlink Control Channel, measure to obtain the bLock error rate of current Physical Downlink Control Channel by the CRC on each transmission block of estimating Physical Downlink Control Channel.Certainly, acquiring unit 301 also can obtain by alternate manner the bLock error rate of current Physical Downlink Control Channel, can receive the bLock error rate of the above-mentioned current Physical Downlink Control Channel that miscellaneous equipment measures as acquiring unit 301, is not construed as limiting herein.
Transmitting element 302, when the BLER that is used for the current PDCCH that gets at acquiring unit 301 did not satisfy default PDCCH bLock error rate and requires, sending the identical and polymerization rank of at least two contents at same TTI to same UE was other PDCCH signal of maximum polymer grade;
In the embodiment of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, it is other PDCCH signal of maximum polymer grade that transmitting element 302 sends the identical and polymerization rank of at least two contents at same TTI to same UE, wherein, the number of the identical PDCCH signal of the content of above-mentioned transmission can be determined by the BLER of base station according to the PDCCH of current reality.in one implementation, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, transmitting element 302 can be when 300 pairs of this base stations UE dispatches, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, perhaps, in another kind of implementation, transmitting element 302 also can reach in the polymerization rank of current PDCCH maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, 300 when again dispatching UE in the base station, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade.If send to same UE at same TTI after the identical and polymerization rank of at least two contents is other PDCCH signal of maximum polymer grade, the BLER of PDCCH does not still satisfy default PDCCH bLock error rate requirement, transmitting element 302 can be in the base station 300 when again this UE being dispatched, the BLER of final PDCCH further increases the transmission number of above-mentioned PDCCH signal, so that can satisfy default PDCCH bLock error rate requirement.
Further, on basis embodiment illustrated in fig. 3, base station 300 also comprises: allocation units, be used for having reached maximum polymerization rank in the polymerization rank of current PDCCH, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, the base station can also allow to distribute the PDCCH resource at public search space except the specific search volume distribution of UE PDCCH resource.
Further, on basis embodiment illustrated in fig. 3, base station 300 also comprises the obstruction unit, wherein, block the unit and can be used for evading GSM and disturb, in a kind of application scenarios, above-mentioned obstruction unit is used for when having the first resource piece, block above-mentioned first resource piece, make when distributing shared channel, above-mentioned first resource piece is not assigned to UE, wherein, above-mentioned first resource piece and GSM spectrum overlapping, and the interference noise power of above-mentioned first resource piece is over presetting the first threshold value; Perhaps, above-mentioned obstruction unit is used for when having the Secondary resource piece, block above-mentioned Secondary resource piece, make when distributing shared channel, above-mentioned Secondary resource piece is not assigned to UE, wherein, above-mentioned Secondary resource piece and GSM spectrum overlapping, and the difference of the RSRQ of above-mentioned Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range; Perhaps, above-mentioned obstruction unit is used for when having the information resources piece, block above-mentioned information resources piece, make when distributing shared channel, above-mentioned information resources piece is not assigned to UE, wherein, above-mentioned information resources piece and GSM spectrum overlapping, and the difference of the value of the CQI of above-mentioned information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range.In another kind of application scenarios, on basis embodiment illustrated in fig. 3, above-mentioned allocation units can also be used for when having first user equipment, to above-mentioned first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of above-mentioned first user equipment and GSM carrier wave is over presetting the second threshold value.
Need to prove, base station 300 in the embodiment of the present invention can be as the base station in above-mentioned embodiment of the method, can be used for realizing whole technical schemes of said method embodiment, the function of its each functional module can be according to the method specific implementation in said method embodiment, its specific implementation process can with reference to the associated description in above-described embodiment, repeat no more herein.
therefore, in the embodiment of the present invention when the polymerization rank of current PDCCH is maximum polymerization rank, obtain the BLER of current PDCCH, when the BLER of current this PDCCH does not still satisfy default PDCCH BLER requirement, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, the gain of at least two PDCCH signals by above-mentioned transmission merges, can further improve the demodulation performance of PDCCH, thereby make the polymer grade at PDCCH be clipped to when reaching maximum polymerization rank, the demodulation performance of PDCCH also can be guaranteed.
The embodiment of the present invention also provides a kind of computer-readable storage medium, and wherein, this computer-readable storage medium has program stored therein, and this program is carried out the part or all of layout that comprises the physical channel resources management method of putting down in writing in said method embodiment.
As shown in Figure 4, the base station 400 in the embodiment of the present invention comprises:
The quantity of the processor 404 in input unit 401, output device 402, memory 403 and processor 404(base station 400 can be one or more, and Fig. 4 is take a processor as example).In some embodiments of the invention, input unit 401, output device 402, memory 403 and processor 404 can connect by bus or alternate manner, as shown in Figure 4 to be connected to example by bus.
Wherein, processor 404 is carried out following steps:
When the polymerization rank of current PDCCH is maximum polymerization rank, obtain the bLock error rate of current PDCCH;
When the BLER of current PDCCH did not satisfy default PDCCH bLock error rate and requires, sending the identical and polymerization rank of at least two contents at same TTI to same UE was other PDCCH signal of maximum polymer grade.
Further, in embodiments of the present invention, polymerization rank at current PDCCH has reached maximum polymerization rank, and when the BLER of current PDCCH does not satisfy default PDCCH bLock error rate requirement, processor 404 can also allow to distribute the PDCCH resource at public search space except the specific search volume distribution of UE PDCCH resource.
Further, the processor 404 of the embodiment of the present invention also is used for one or more of execution following steps:
When having the first resource piece, block above-mentioned first resource piece, make when distributing shared channel, above-mentioned first resource piece is not assigned to UE, wherein, above-mentioned first resource piece and GSM spectrum overlapping, and the interference noise power of above-mentioned first resource piece is over presetting the first threshold value;
When having the Secondary resource piece, block above-mentioned Secondary resource piece, make when distributing shared channel, above-mentioned Secondary resource piece is not assigned to UE, wherein, above-mentioned Secondary resource piece and GSM spectrum overlapping, and the difference of the RSRQ of above-mentioned Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range;
When having the information resources piece, block above-mentioned information resources piece, make when distributing shared channel, above-mentioned information resources piece is not assigned to UE, wherein, above-mentioned information resources piece and GSM spectrum overlapping, and the difference of the value of the CQI of above-mentioned information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range;
When having first user equipment, to above-mentioned first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of above-mentioned first user equipment and GSM carrier wave is over presetting the second threshold value.
Need to prove, base station 400 in the embodiment of the present invention can be as the base station in above-mentioned embodiment of the method, can be used for realizing whole technical schemes of said method embodiment, the function of its each functional module can be according to the method specific implementation in said method embodiment, its specific implementation process can with reference to the associated description in above-described embodiment, repeat no more herein.
therefore, in the embodiment of the present invention when the polymerization rank of current PDCCH is maximum polymerization rank, obtain the BLER of current PDCCH, when the BLER of current this PDCCH does not still satisfy default PDCCH BLER requirement, sending the identical and polymerization rank of at least two contents at same TTI to same UE is other PDCCH signal of maximum polymer grade, the gain of at least two PDCCH signals by above-mentioned transmission merges, can further improve the demodulation performance of PDCCH, thereby make the polymer grade at PDCCH be clipped to when reaching maximum polymerization rank, the demodulation performance of PDCCH also can be guaranteed.
Need to prove, for aforesaid each embodiment of the method, for easy description, therefore it all is expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not subjected to the restriction of described sequence of movement, because according to the present invention, some step can adopt other order or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be all that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, there is no the part that describes in detail in certain embodiment, can be referring to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks in above-described embodiment is to come the relevant hardware of instruction to complete by program, this program can be stored in a computer-readable recording medium, and storage medium is such as comprising: read-only memory, random asccess memory, disk or CD etc.
Above a kind of physical channel resources management method provided by the present invention and base station are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (14)
1. a physical channel resources management method, is characterized in that, comprising:
When the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank, obtain the bLock error rate of described current Physical Downlink Control Channel;
If the bLock error rate of described current Physical Downlink Control Channel does not satisfy default Physical Downlink Control Channel bLock error rate requirement:
Sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
2. physical channel resources management method according to claim 1, is characterized in that,
Described to send the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment be other physical downlink channel control signal of maximum polymer grade, comprising:
When again described subscriber equipment being dispatched, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
3. method according to claim 1 and 2, is characterized in that, if the bLock error rate of described current Physical Downlink Control Channel does not satisfy default Physical Downlink Control Channel bLock error rate requirement, described method also comprises:
Permission distributes the Physical Downlink Control Channel resource of described subscriber equipment at public search space.
4. the described method of according to claim 1 to 3 any one, is characterized in that, described physical channel resources management method also comprises:
If there is the first resource piece, block described first resource piece, make when distributing shared channel, described first resource piece is not assigned to subscriber equipment, wherein, described first resource piece and global system for mobile communications GSM spectrum overlapping, and the interference noise power of described first resource piece is over presetting the first threshold value.
5. the described method of according to claim 1 to 3 any one, is characterized in that, described physical channel resources management method also comprises:
If there is the Secondary resource piece, block described Secondary resource piece, make when distributing shared channel, described Secondary resource piece is not assigned to subscriber equipment, wherein, described Secondary resource piece and global system for mobile communications GSM spectrum overlapping, and the difference of the Reference Signal Received Quality RSRQ of described Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range.
6. the described method of according to claim 1 to 3 any one, is characterized in that, described physical channel resources management method also comprises:
If there is the information resources piece, block described information resources piece, make when distributing shared channel, described information resources piece is not assigned to subscriber equipment, wherein, described information resources piece and global system for mobile communications GSM spectrum overlapping, and the difference of the value of the channel quality indicator (CQI) of described information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range.
7. the described method of according to claim 1 to 3 any one, is characterized in that, described physical channel resources management method also comprises:
If there is first user equipment, to described first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of described first user equipment and GSM carrier wave is over presetting the second threshold value.
8. a base station, is characterized in that, comprising:
Acquiring unit is used for obtaining the bLock error rate of current Physical Downlink Control Channel when the polymerization rank of current Physical Downlink Control Channel is maximum polymerization rank;
Transmitting element, when the bLock error rate that is used for the current Physical Downlink Control Channel that obtains at described acquiring unit did not satisfy default Physical Downlink Control Channel bLock error rate and requires, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment was other physical downlink channel control signal of maximum polymer grade.
9. base station according to claim 8, is characterized in that,
Described transmitting element specifically is used for: when again described subscriber equipment being dispatched, sending the identical and polymerization rank of at least two contents at same Transmission Time Interval to same subscriber equipment is other physical downlink channel control signal of maximum polymer grade.
10. according to claim 8 or 9 described base stations, is characterized in that,
Described base station also comprises:
Allocation units, when requiring for the satisfied default Physical Downlink Control Channel bLock error rate of the bLock error rate of the current Physical Downlink Control Channel that obtains at described acquiring unit, the Physical Downlink Control Channel resource of distributing described subscriber equipment at public search space.
11. the described base station of according to claim 8 to 10 any one is characterized in that,
Described base station also comprises:
Block the unit, be used for when having the first resource piece, block described first resource piece, make when distributing shared channel, described first resource piece is not assigned to subscriber equipment, wherein, described first resource piece and global system for mobile communications GSM spectrum overlapping, and the interference noise power of described first resource piece is over presetting the first threshold value.
12. the described base station of according to claim 8 to 10 any one is characterized in that,
Described base station also comprises:
Block the unit, be used for when having the Secondary resource piece, block described Secondary resource piece, make when distributing shared channel, described Secondary resource piece is not assigned to subscriber equipment, wherein, described Secondary resource piece and global system for mobile communications GSM spectrum overlapping, and the difference of the Reference Signal Received Quality RSRQ of described Secondary resource piece and the RSRQ on full bandwidth is not in presetting the RSRQ difference range.
13. the described base station of according to claim 8 to 10 any one is characterized in that,
Described base station also comprises:
Block the unit, be used for when having the information resources piece, block described information resources piece, make when distributing shared channel, described information resources piece is not assigned to subscriber equipment, wherein, described information resources piece and global system for mobile communications GSM spectrum overlapping, and the difference of the value of the channel quality indicator (CQI) of described information resources piece and the CQI on full bandwidth is not in presetting the CQI difference range.
14. base station according to claim 10 is characterized in that,
Described allocation units also are used for: when having first user equipment, to described first user devices allocation shared channel the time, only distribute and the nonoverlapping Resource Block of GSM frequency spectrum, wherein, the difference of the interference signal intensity of the valid signal strengths of the Serving cell of described first user equipment and GSM carrier wave is over presetting the second threshold value.
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