CN102056223A - Method for distributing semi-continuous scheduling resources - Google Patents
Method for distributing semi-continuous scheduling resources Download PDFInfo
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- CN102056223A CN102056223A CN201010138459XA CN201010138459A CN102056223A CN 102056223 A CN102056223 A CN 102056223A CN 201010138459X A CN201010138459X A CN 201010138459XA CN 201010138459 A CN201010138459 A CN 201010138459A CN 102056223 A CN102056223 A CN 102056223A
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Abstract
The invention discloses a method for distributing semi-continuous scheduling resources. The method comprises the following steps of: when user equipment (UE) is initially accessed, the UE reports the measured received signal code power (RSCP) of a primary common control physical channel (PCCPCH) to a network side; the network side calculates a path loss value of the UE according to the power of the PCCPCH of a cell and the RSCP reported by the UE; and a Node B distributes semi-continuous scheduling share point service (SPS) resources to the UE according to the path loss value of the UE and the measured interference signal code power (ISCP) of an uplink time slot, and configures to the UE. By applying the method, accurate SPS resources can be distributed when a user is accessed initially, the redistributing times of the SPS resources can be reduced, channel resources can be saved and the interference is reduced.
Description
Technical field
The present invention relates to the resource allocation techniques in the communication system, the distribution method of particularly a kind of semi-continuous scheduling (SPS) resource.
Background technology
In the CPC of HSPA+ uses, can distribute E-DCH SPS (semi-continuous scheduling) resource up, be used to transmit up signaling or business datum, NodeB can be according to the size and the channel quality of UE data block, for UE distributes the SPS resource, for example, distribute the code channel of a SF8, adopt the 16QAM modulation system; Also can adopt the code channel that distributes a SF4, with the modes such as mode of QPSK, transmit ascending data.After configuring the SPS resource, change as quality of channel, NodeB can revise the SPS resource distribution of E-DCH by the E-AGCH order.
In present HSPA+CPC E-DCH SPS resource allocation, when the user initially inserts, network side can't be known the channel quality of UE, thereby the E-DCH SPS resource of can't accurate Calculation distributing to UE, the authorization resources that causes distributing may be improper, need the follow-up SI information that reports according to UE, reshuffle E-DCH SPS resource.And the increase that the reprovision of E-DCH SPS resource will cause too much E-AGCH signaling exchange, channel resource waste and disturb reduces systematic function.
Summary of the invention
In view of this, the invention provides a kind of distribution method of SPS resource, can be when the user initially insert, for the user distributes E-DCH SPS resource accurately, thereby the reprovision number of times of minimizing SPS resource is saved channel resource, reduces and disturbs.
For achieving the above object, the present invention adopts following technical scheme:
A kind of distribution method of half-persistence scheduling resources comprises:
When UE initially inserts, the RSCP of the PCCPCH that measures is reported network side, network side calculates the circuit loss value of described UE according to the RSCP that the PCCPCH power and the described UE of sub-district reports;
NodeB is according to the circuit loss value of described UE and the ascending time slot ISCP of measurement, and for described UE distributes semi-continuous scheduling SPS resource, and described UE is given in configuration.
Preferably, described UE reports network side by RACH with described RSCP.
Preferably, the circuit loss value that the RSCP that described network side reports according to the PCCPCH power and the described UE of sub-district calculates described UE is: RNC obtains the described RSCP that UE reports in RACH, and according to the PCCPCH and the described RSCP of sub-district, calculates the circuit loss value of described UE;
After calculating the path loss of described UE, NodeB is that this method further comprised before described UE distributed the SPS resource:
The circuit loss value of the described UE that RNC will calculate sends to NodeB.
Preferably, NodeB is to the mode of described UE the SPS resource distribution that distributes: the SPS resource of the described distribution of NodeB notice RNC, give described UE by RNC with the SPS resource distribution that distributes.
Preferably, RNC sends to NodeB with the circuit loss value of the described UE RL SETUP REQUEST message by the Iub mouth;
NodeB is by the SPS resource of the described distribution of RL SETUP RESPONSE message informing RNC of Iub mouth.
Preferably, the circuit loss value that the RSCP that described network side reports according to the PCCPCH power and the described UE of sub-district calculates described UE is: described NodeB resolves the content of RACH, obtain the described RSCP that described UE reports, and dispose to the sub-district PCCPCH of described NodeB and the described RSCP that obtains according to RNC, calculate the circuit loss value of described UE.
Preferably, described NodeB comprises for the UE of institute distributes the SPS resource according to the circuit loss value of UE and the ascending time slot ISCP of measurement:
NodeB calculates the code rate under the various optional modulation systems, and measures the ISCP of ascending time slot;
According to the corresponding relation of code rate that sets in advance and authorization power, determine the authorization power under the various optional modulation systems, and calculate signal to noise ratio and NE-UCCH under various optional modulation systems and the configuration of corresponding spreading factor thereof;
Select corresponding authorization power, signal to noise ratio and NE-UCCH all to satisfy the modulation system of system requirements and corresponding spreading factor thereof, and distribute the SPS resource according to modulation system of selecting and corresponding spreading factor thereof.
Preferably, when authorization power, signal to noise ratio and NE-UCCH all satisfy the modulation system of system requirements and corresponding spreading factor thereof for many groups,, select a kind of modulation system and corresponding spreading factor thereof according to default resource allocation policy; Described resource allocation policy is that number of users is preferential or power is preferential.
As seen from the above technical solution, among the present invention, when UE initially inserts, the RSCP of the PCCPCH that measures is reported network side, network side calculates the circuit loss value of described UE according to the RSCP that the PCCPCH power and the described UE of sub-district reports; NodeB is according to the circuit loss value of described UE and the ascending time slot ISCP of measurement, and for described UE distributes semi-continuous scheduling SPS resource, and described UE is given in configuration.By the way, can when UE initially insert, just determine the circuit loss value of this UE, thereby can distribute SPS resource accurately, reduce the reprovision number of times of SPS resource, save channel resource, reduce and disturb for UE.
Description of drawings
Fig. 1 is the particular flow sheet of SPS resource allocation methods in the embodiment of the invention.
Embodiment
For making purpose of the present invention, technological means and advantage clearer, the present invention is described in further details below in conjunction with accompanying drawing.
Basic thought of the present invention is: when the user initially inserts, just obtain this user's channel quality information, the channel quality information according to this user carries out the SPS resource allocation again, thereby realizes the accurate distribution of SPS resource.
Concrete SPS resource allocation methods of the present invention comprises: when UE initially inserts, the RSCP of the PCCPCH that measures is reported network side, network side calculates the circuit loss value of this UE according to the RSCP that the PCCPCH power and the described UE of sub-district reports; NodeB is according to the circuit loss value of this UE and the ascending time slot ISCP of measurement, and for this UE distributes semi-continuous scheduling SPS resource, and this UE is given in configuration.
Below by specific embodiment specific implementation of the present invention is described.Fig. 1 is the particular flow sheet of SPS resource allocation methods in the embodiment of the invention.As shown in Figure 1, this method comprises:
Step 101 when UE inserts, reports network side with the RSCP of the PCCPCH that measures.
In the prior art, UE can carry out PCCPCH when initial access the RSCP measures, but measurement result can not report.Among the present invention, the RSCP of the PCCPCH that measures is reported network side.Specifically reporting mode can be to carry in RACH, perhaps also can report by other self-defined modes.
Step 102, RNC receives the FP frame on the RACH, extracts the RSCP value of the PCCPCH that carries in this frame.
Step 103, the RSCP value that RNC obtains according to the PCCPCH power and the step 102 of sub-district, the circuit loss value of calculating UE.
The concrete mode of calculating UE circuit loss value L is: the RSCP value of the PCCPCH power of sub-district-report.Wherein, the PCCPCH power of sub-district is the known parameter value of RNC.
Step 104, RNC is handed down to NodeB with the circuit loss value that calculates.
Concrete RNC is when NodeB issues circuit loss value, and the RLSETUP REQUEST message that circuit loss value can be carried at the Iub mouth issues, and perhaps also circuit loss value can be carried at other self-defined messages and issue.
Step 105, NodeB is according to the circuit loss value of UE and the ascending time slot ISCP of measurement, for UE distributes the SPS resource.
Specifically,, UE can adopt existing mode to carry out for distributing the mode of SPS resource according to the ISCP of circuit loss value and ascending time slot.Below provide an example of specifically carrying out the SPS resource allocation, wherein optionally modulation system is 16QAM and QPSK, and the spreading factor of corresponding employing is SF8 and SF4:
1, during SPS transmission first, according to the data block (148bits) of 3.4k information, SI (23bits) information that may comprise and the physical layer grade of UE, the TBS table of inquiry UE obtains the TBS indexS of UE
ePhysical channel bits during according to employing QPSK and 16QAM counts S
eCalculate two kinds of modulation system corresponding codes speed λ,
λ
E, qpsk=S
e/ R
E, qpsk, adopting SF4, QPSK carries data
λ
E, 16QAM=S
e/ R
E, 16QAM, adopting SF8,16QAM carries data
2, the ISCP of measurement ascending time slot is according to the ISCP adjustment P of ascending time slot
E-base, P
E-baseBe β 0, the expectation received power of correspondence during e=0.
3, according to QPSK and the code check λ under the 16QAM modulation system and authorization power (Reference β) table of configuration, obtain the authorization power β of two kinds of modulation system correspondences
E, qpskAnd β
E, 16QAM
4, selecting modulation mode and spreading factor combination.
When
And
The time, show: the authorization power β when adopting QPSK
E, qpskExceeded tolerance band, the authorization power β when adopting 16QAM
E, 16QAMDo not exceed tolerance band, therefore can be according to β
E, 16QAMCalculate NE-UCCH and C/I,, adopt the 16QAM modulation system, configuration SF8 if result of calculation satisfies the requirement of system for NE-UCCH and C/I;
When
And
The time, show: the authorization power β when adopting QPSK
E, qpskDo not exceed tolerance band, the authorization power β when adopting 16QAM
E, 16QAMExceeded tolerance band, therefore, can be according to β
E, qpskCalculate NE-UCCH and C/I,, adopt the QPSK modulation system, configuration SF4 if result of calculation satisfies the requirement of system for NE-UCCH and C/I;
When
And
The time, show: the authorization power β when adopting QPSK
E, qpskAuthorization power β during with employing 16QAM
E, 16QAMAll do not exceed tolerance band, therefore need further to judge NE-UCCH and C/I under two kinds of modulation systems and the corresponding spreading factor thereof, particularly,
The transmitting power of UE is respectively under two kinds of modulation systems:
P
E-PUCH，qpsk＝P
e-base+L+β
e，qpsk
P
E-PUCH，16QAM＝P
e-base+L+β
e，16QAM
NodeB calculates the RTWP that E-DCH SPS uses time slot, and calculates and use β
E, qpskAnd β
E, 16QAMC/I during authorization power, whether the C/I when judging QPSK and 16QAM satisfies condition, and respectively according to the authorization power calculating NE-UCCH of QPSK and 16QAM, modulation system and the corresponding spreading factor of selecting NE-UCCH and C/I all to satisfy condition; If for two kinds of modulation systems and the combination of corresponding spreading factor thereof, the NE-UCCH and the C/I that calculate all satisfy condition, then can determine that power is preferential or number of users is preferential by the set algorithm switch, according to definite initial SPS modulation system and the code channel that uses of the C/I, authorization power and the algorithm switch that calculate, concrete processing mode is as shown in table 1.
| Condition | NE-UCCH | Modulation system | Code channel |
| β e，qpskAnd β e，16QAMAll satisfy C/I | QPSK and 16QAM satisfy NE-UCCH | Adopt SF8 when 16QAM is preferential; When power is preferential, β e，qpsk＜β e，16QAM, adopt QPSK, otherwise adopt 16QAM | Adopt SF8 during 16QAM; Adopt SF4 during QPSK |
| Have only QPSK to satisfy NE-UCCH | ?QPSK | SF4 | |
| Have only 16QAM to satisfy NE-UCCH | ?16QAM | SF8 | |
| Have only QPSK to satisfy C/I | Satisfy NE-UCCH | ?QPSK | SF4 |
| Do not satisfy NE-UCCH | ?NA | Refuse user or redirected UE to other carrier wave or sub-district | |
| Have only 16QAM to satisfy C/I | Satisfy NE-UCCH | ?16QAM | SF8 |
| Do not satisfy NE-UCCH | ?NA | Refuse user or redirected UE to other carrier wave or sub-district |
Table 1
After selecting modulation system and spreading factor by the way, for UE distributes the SPS resource.Concrete mode is identical with existing processing, just repeats no more here.
Step 106, notice RNC distributes to the SPS resource of UE, is disposed to UE by RNC again.
Wherein, if RNC is handed down to NodeB with the RL SETUP REQUEST message that circuit loss value is carried at the Iub mouth in the step 104, then can pass through the SPS resource of the described distribution of RL SETUP RESPONSE message informing RNC of Iub mouth in this step.Perhaps, also can pass through other self-defining message informing RNC.
So far, the SPS resource allocation methods flow process in the embodiment of the invention finishes.In the invention described above embodiment, UE is reported to network side with the RSCP of PCCPCH, again by the path loss information of network side according to the PCCPCH power calculation UE of this RSCP value and sub-district, thereby determines channel quality information.Like this, just can for UE distributes SPS resource accurately, reduce the reprovision number of times of SPS resource, save channel resource, reduce and disturb according to path loss information and the ascending time slot ISCP of UE.
In addition, in above-mentioned processing procedure, owing to be that NodeB is that UE carries out the SPS resource allocation, so NodeB need obtain the path loss information of UE.Specifically in the above-described embodiments, be from RACH, to obtain the RSCP value that UE reports by RNC, be handed down to NodeB's after calculating circuit loss value by RNC again, in fact, also can carry out the parsing of RACH information by NodeB, obtain the RSCP value, again according to the pre-configured PCCPCH power calculation circuit loss value of giving NodeB of RNC, this processing mode, save signaling consumption owing to having reduced mutual between RNC and NodeB, still, increased the processing burden of NodeB, promptly need RACH information is resolved (in the agreement, NodeB does not need to resolve RACH information at present).Therefore, comprehensively more above-mentioned two kinds of NodeB obtain the mode of circuit loss value, from the angle of compatible existing protocol, are preferable with the implementation among Fig. 1 still, and its change to existing system is less.
Being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the distribution method of a half-persistence scheduling resources is characterized in that, this method comprises:
When UE initially inserts, the RSCP of the PCCPCH that measures is reported network side, network side calculates the circuit loss value of described UE according to the RSCP that the PCCPCH power and the described UE of sub-district reports;
NodeB is according to the circuit loss value of described UE and the ascending time slot ISCP of measurement, and for described UE distributes semi-continuous scheduling SPS resource, and described UE is given in configuration.
2. method according to claim 1 is characterized in that described UE reports network side by RACH with described RSCP.
3. method according to claim 2, it is characterized in that, the circuit loss value that the RSCP that described network side reports according to the PCCPCH power and the described UE of sub-district calculates described UE is: RNC obtains the described RSCP that UE reports in RACH, and, calculate the circuit loss value of described UE according to the PCCPCH and the described RSCP of sub-district;
After calculating the path loss of described UE, NodeB is that this method further comprised before described UE distributed the SPS resource:
The circuit loss value of the described UE that RNC will calculate sends to NodeB.
4. method according to claim 3 is characterized in that, NodeB is to the mode of described UE the SPS resource distribution that distributes: the SPS resource of the described distribution of NodeB notice RNC, give described UE by RNC with the SPS resource distribution that distributes.
5. method according to claim 4, its spy is, RNC sends to NodeB with the circuit loss value of the described UE RL SETUP REQUEST message by the Iub mouth;
NodeB is by the SPS resource of the described distribution of RL SETUP RESPONSE message informing RNC of Iub mouth.
6. method according to claim 2, it is characterized in that, the circuit loss value that the RSCP that described network side reports according to the PCCPCH power and the described UE of sub-district calculates described UE is: described NodeB resolves the content of RACH, obtain the described RSCP that described UE reports, and dispose to the sub-district PCCPCH of described NodeB and the described RSCP that obtains according to RNC, calculate the circuit loss value of described UE.
7. according to arbitrary described method in the claim 1 to 6, it is characterized in that described NodeB comprises for the UE of institute distributes the SPS resource according to the circuit loss value of UE and the ascending time slot ISCP of measurement:
NodeB calculates the code rate under the various optional modulation systems, and measures the ISCP of ascending time slot;
According to the corresponding relation of code rate that sets in advance and authorization power, determine the authorization power under the various optional modulation systems, and calculate signal to noise ratio and NE-UCCH under various optional modulation systems and the configuration of corresponding spreading factor thereof;
Select corresponding authorization power, signal to noise ratio and NE-UCCH all to satisfy the modulation system of system requirements and corresponding spreading factor thereof, and distribute the SPS resource according to modulation system of selecting and corresponding spreading factor thereof.
8. method according to claim 7, it is characterized in that, when authorization power, signal to noise ratio and NE-UCCH all satisfy the modulation system of system requirements and corresponding spreading factor thereof for many groups,, select a kind of modulation system and corresponding spreading factor thereof according to default resource allocation policy; Described resource allocation policy is that number of users is preferential or power is preferential.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103687034A (en) * | 2012-08-30 | 2014-03-26 | 电信科学技术研究院 | Group scheduling method and device |
| WO2017166929A1 (en) * | 2016-04-01 | 2017-10-05 | 夏普株式会社 | Base station, user equipment, and associated method |
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| WO2003005752A1 (en) * | 2001-07-05 | 2003-01-16 | Nortel Networks Limited | Method of controlling radio resources allocated to a communication between a mobile terminal and a cellular spread spectrum infrastructure and the equipment therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20110511 |