CN103270805A - Method, device and base station for data schedule - Google Patents

Method, device and base station for data schedule Download PDF

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CN103270805A
CN103270805A CN2012800021863A CN201280002186A CN103270805A CN 103270805 A CN103270805 A CN 103270805A CN 2012800021863 A CN2012800021863 A CN 2012800021863A CN 201280002186 A CN201280002186 A CN 201280002186A CN 103270805 A CN103270805 A CN 103270805A
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communication system
data scheduling
scheduling period
user equipment
interference
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CN103270805B (en
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吴贤斌
刘琳
管立军
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies

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Abstract

This invention discloses a method, a device and a base station for data schedule. This data schedule method comprises business information on at least one interference frequency point of first type communication systems of a previous data schedule cycle and a present data schedule cycle and channel quality indication (CQI)reported by a first user and determining interference information produced upon the first user by first type communication systems of the previous data schedule cycle and the present data schedule cycle. The interference information produced by the first user determines a CQI modification value for data schedule according to the interference information on the first user equipment by the first type communication system and interference information on the first user equipment by the second type communication system, This data schedule method improves cell throughput . Besides, this invention also discloses a device and a base station.

Description

Data scheduling method, device and base station
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a method, a device and a base station for data scheduling.
Background
As the number of users of the Global System for Mobile communications (GSM) communication System decreases, the frequency points idle by the GSM communication System can be used to carry the Universal Mobile Telecommunications System (UMTS) communication System. However, when the interval width between the central frequency points of the GSM cell and the UMTS cell is less than 5MHz, the GSM and UMTS system communication systems may interfere with each other. Because the GSM has larger power density and frequency hopping phenomenon, the interference to the UMTS is disordered and sudden.
In High Speed Downlink Packet Access (HSDPA) service data scheduling, the size of a data block to be transmitted in a current HSDPA scheduling period is determined according to a Channel Quality Indicator (CQI) of a previous HSDPA scheduling period reported by a User Equipment (UE). The HSDPA scheduling period may also be referred to as a Transmission Time Interval (TTI), which is typically 2 ms and 3 slots. Due to the short scheduling period, the CQI of the last TTI can relatively accurately reflect the CQI of the current TTI under the condition that the GSM burst interference does not exist.
However, the inventors of the present invention found that: when the GSM interference is out of order and bursty, the CQI of the last TTI reported by the UE is greatly different from the CQI of the current TTI, so that the data scheduling is inaccurate, and the cell throughput is affected.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, and a base station for data scheduling, so as to implement adjustment of a CQI when a first-system communication system and a second-system communication system coexist, and a bandwidth interval between spectrum resources used by the first-system communication system and the second-system communication system is smaller than a standard spectrum bandwidth, so that an adjusted CQI modification value can relatively accurately reflect channel quality of a current scheduling period, and scheduling according to the adjusted CQI modification value can reduce retransmission of an HSDPA and improve throughput of a cell.
In a first aspect, a method of data scheduling is provided, the method comprising,
acquiring service information of at least one interference frequency point of a first standard communication system in a previous data scheduling period and a current data scheduling period, wherein the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system carries out service;
determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period;
determining interference information generated by a second-standard communication system to the first user equipment according to the interference information generated by the first-standard communication system to the first user equipment in the previous data scheduling period and the Channel Quality Indicator (CQI) received in the current data scheduling period and reported by the first user equipment;
and determining a CQI correction value for data scheduling according to the interference information generated by the first-standard communication system to the first user equipment in the current data scheduling period and the interference information generated by the second-standard communication system to the first user equipment.
In a first possible implementation manner of the first aspect, the service information of the interference frequency point of the first standard communication system includes an average transmission power and a service duration.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, determining, according to service information of at least one interference frequency point of the first standard communication system in the previous data scheduling period and the current data scheduling period, interference information generated by the first standard communication system in the previous data scheduling period and the current data scheduling period on the first user equipment includes determining, by the first possible implementation manner of the first aspect, interference information generated by the first standard communication system in the previous data scheduling period and the current data scheduling period on the first user equipment
Figure BDA00002782923100021
Wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the interference information of the communication system of the first standardiRepresenting interference information S generated by a first standard communication system to the first user equipment in the current data scheduling periodUEThe method comprises the steps of representing the suppression proportion of the first user equipment to signals of a first standard communication system, representing the maximum transmitting power and the service time length of a service cell of the first user equipment by SendBestCellPoweriService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiFirst standard communication representing current data scheduling periodThe average transmission power of one interference frequency point of the system,
Figure BDA00002782923100031
representing the acquired at least one interfering frequency point
Figure BDA00002782923100032
And (6) summing.
With reference to the first possible implementation manner or the second possible implementation manner of the first aspect, in a third possible implementation manner, determining, according to interference information generated by the first-standard communication system in the previous data scheduling period to the first user equipment and a channel quality indicator CQI reported by the first user equipment and received in the current data scheduling period, interference information generated by the second-standard communication system to the first user equipment includes:
Figure BDA00002782923100033
wherein, the interference information of the second standard communication system represents the interference information generated by the second standard communication system to the first user equipment, α is a preset non-orthogonalization factor, the pilot frequency transmitting power ratio is the ratio of the pilot frequency transmitting power of the service cell of the first user equipment to the maximum transmitting power of the service cell of the first user equipment, the correction factor is a preset value, i represents the current data scheduling period, i-1 represents the previous data scheduling period, CQI is used for determining the current data scheduling periodiAnd indicating the CQI reported by the first user equipment and received in the current data scheduling period.
With reference to the first possible implementation manner of the first aspect, in a fourth possible implementation manner, determining a CQI modification value for data scheduling according to interference information, generated by the communication system of the first standard in the current data scheduling period, to the first user equipment and interference information, generated by the communication system of the second standard, to the first user equipment includes:
Figure BDA00002782923100034
in a fifth implementation manner of the first aspect, the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
In a second aspect, a method for scheduling data is provided, which includes sending a channel quality indicator CQI corresponding to a second standard communication system to the second standard communication system;
receiving data transmitted by the communication system of the second standard, wherein the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second standard communication system to the first user equipment according to the interference information generated by the first standard communication system to the first user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first standard communication system to the first user equipment in the current data scheduling period and the interference information generated by the second standard communication system to the first user equipment.
In a first possible implementation manner of the second aspect, the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
In a third aspect, an apparatus for scheduling data is provided, the apparatus comprising:
the system comprises a first standard service information acquisition module, a second standard service information acquisition module and a service information acquisition module, wherein the first standard service information acquisition module is used for acquiring service information of at least one interference frequency point of a previous data scheduling period and a current data scheduling period of a first standard communication system, the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system performs service;
the first system interference information determining module is used for determining interference information generated by the first system communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information acquired by the first system service information acquiring module;
a second system interference information determining module, configured to determine, according to the interference information, which is determined by the first system interference information determining module, of the first system communication system in the previous data scheduling period and is generated to the first user equipment, and a channel quality indicator CQI, which is received in the current data scheduling period and is reported by the first user equipment, interference information, which is generated to the first user equipment by the second system communication system, of the current data scheduling period;
and the CQI correction module is used for determining a CQI correction value for data scheduling according to the interference information generated by the first-system communication system to the first user equipment in the current data scheduling period determined by the first-system interference information determination module and the interference information generated by the second-system communication system to the first user equipment determined by the second-system interference information determination module.
In a first possible implementation manner of the third aspect, the service information of the interference frequency point of the communication system of the first standard includes: average transmit power and traffic duration.
With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the first system interference information determining module includes:
wherein,i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the interference intensity of each frequency pointiRepresenting the interference strength, S, of the current data scheduling period determined separately for each interfering frequency pointUEThe method represents the suppression ratio of the first user equipment to the first standard communication system signal and the service durationiService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiAverage transmitting power and service duration of an interference frequency point of a first standard communication system representing current data scheduling periodiAnd average transmission poweriService information of the same interference frequency point;
an interference frequency point interference intensity summing submodule, configured to sum the interference intensity of the previous data scheduling period and the current data scheduling period of each interference frequency point determined by the interference frequency point interference intensity determining submodule 3021 to obtain the total interference intensity of the previous data scheduling period and the current data scheduling period of the interference frequency point,
Figure BDA00002782923100051
an interference information determining submodule, configured to determine, according to the total interference strength of the previous data scheduling period and the current data scheduling period determined by the interference frequency point interference strength summing submodule and the maximum transmission power of the serving cell of the first user equipment, interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period on the first user equipment:
Figure BDA00002782923100052
wherein, the interference information of the communication system of the first standardiInterference information generated by a first standard communication system representing the current data scheduling period to the first user equipment, and first standard communicationSystem interference informationi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment, wherein the SendBestCellPower represents the maximum transmitting power of a service cell of the first user equipment.
With reference to the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the second system interference information determining module includes,
the total interference information determining submodule is used for determining the total interference information of a previous data scheduling period of the first standard communication system and the second standard communication system according to the following formula:
wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the total interference informationi-1Representing total interference information of a previous data scheduling period, alpha is a preset non-orthogonalization factor, the ratio of pilot frequency transmitting power is the ratio of the pilot frequency transmitting power of the serving cell of the first user equipment to the maximum transmitting power of the serving cell of the first user equipment, the correction factor is a preset value, and CQI isiIndicating the CQI reported by the first user equipment and received in the current data scheduling period;
a second system interference information determining submodule, configured to obtain second system interference information according to the total interference information of the previous data scheduling period obtained by the total interference information determining submodule and interference information, which is generated by the first system communication system of the previous data scheduling period and is determined by the first system interference information determining module, to the first user equipment:
interference information of second standard communication system is total interference informationi-1-first format communication system interference informationi-1；
And the interference information of the communication system of the second standard represents the interference information generated by the communication system of the second standard to the first user equipment.
With reference to the first possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the determining, by the CQI module, the CQI correction value specifically includes:
Figure BDA00002782923100062
in a fifth possible implementation manner of the third aspect, the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
In a fourth aspect, a user equipment is provided, the user equipment comprising:
the transmitter is used for transmitting a channel quality indicator CQI corresponding to a second standard communication system to the second standard communication system;
a receiver for receiving the data transmitted by the communication system of the second standard, wherein the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second standard communication system to the user equipment according to the interference information generated by the first standard communication system to the user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first standard communication system to the user equipment in the current data scheduling period and the interference information generated by the second standard communication system to the user equipment.
In a first possible implementation manner of the fourth aspect, the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
In a fifth aspect, a communication system is provided, where the communication system is a second standard communication system, and includes:
the receiver is used for receiving a channel quality indicator CQI reported by first user equipment;
the processor is used for acquiring service information of at least one interference frequency point of a previous data scheduling period and a current data scheduling period of the first standard communication system, wherein the data scheduling period is equal to the data scheduling period of the second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system carries out service; determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period; determining interference information generated by the communication system of the second system to the first user equipment according to the interference information generated by the communication system of the first system to the first user equipment in the previous data scheduling period and the Channel Quality Indicator (CQI) reported by the first user equipment and received in the current data scheduling period; and determining a CQI correction value for data scheduling according to interference information generated by a first-system communication system to first user equipment in a current data scheduling period and interference information generated by a second-system communication system to the first user equipment.
In a first possible implementation manner of the fifth aspect, the service information of the interference frequency point of the communication system of the first standard includes an average transmission power and a service duration.
With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the processor determines, according to the service information of at least one interference frequency point of the first standard communication system in the previous data scheduling period and the current data scheduling period, interference information generated by the first standard communication system in the previous data scheduling period and the current data scheduling period to the first user equipment, where the interference information includes interference information generated by the first standard communication system in the previous data scheduling period and the current data scheduling period
Figure BDA00002782923100081
Wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the interference information of the communication system of the first standardiRepresenting interference information S generated by a first standard communication system to the first user equipment in the current data scheduling periodUEThe method comprises the steps of representing the suppression proportion of the first user equipment to signals of a first standard communication system, representing the maximum transmitting power and the service time length of a service cell of the first user equipment by SendBestCellPoweriService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiThe average transmitting power of an interference frequency point of the communication system of the first standard representing the current data scheduling period,representing the frequency of each interference bin acquired
Figure BDA00002782923100083
And (6) summing.
With reference to the first possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the determining, by the processor, interference information, generated to the first user equipment by a second-system communication system, according to interference information, generated to the first user equipment, by the first-system communication system in the previous data scheduling period and a channel quality indicator CQI, received in a current data scheduling period and reported by the first user equipment, by the processor includes:
Figure BDA00002782923100084
wherein, the interference information of the second standard communication system represents the interference information generated by the second standard communication system to the first user equipment, α is a preset non-orthogonalization factor, the pilot frequency transmitting power ratio is the ratio of the pilot frequency transmitting power of the service cell of the first user equipment to the maximum transmitting power of the service cell of the first user equipment, the correction factor is a preset value, i represents the current data scheduling period, i-1 represents the previous data scheduling period, CQI is used for determining the current data scheduling periodiAnd indicating the CQI reported by the first user equipment and received in the current data scheduling period.
With reference to the first possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the determining, by the processor, a CQI correction value for data scheduling according to interference information, generated by the communication system of the first standard in the current data scheduling period, on the first user equipment and interference information, generated by the communication system of the second standard, on the first user equipment includes:
Figure BDA00002782923100091
in a fifth possible implementation manner of the fifth aspect, the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
In a sixth aspect, a base station is provided, comprising:
the first standard communication system provides service information of at least one interference frequency point of the first standard communication system in a previous data scheduling period and a current data scheduling period to the second standard communication system;
the second standard communication system comprises the apparatus of any one of the third aspect.
In a seventh aspect, a base station is provided, which includes:
the first standard communication system provides service information of at least one interference frequency point of the first standard communication system in a previous data scheduling period and a current data scheduling period to the second standard communication system;
a second standard communication system according to any one of the fifth aspect.
Through the scheme, the CQI is adjusted by combining the service information of the interference frequency point of the first-standard communication system in the previous data scheduling period and the current data scheduling period, so that the adjusted CQI correction value can relatively accurately reflect the channel quality of the current scheduling period, further, the HSDPA retransmission can be reduced by scheduling according to the adjusted CQI correction value, and the cell throughput rate is improved.
Drawings
Fig. 1 is a flowchart of a method for scheduling data according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for scheduling data according to another embodiment of the present invention;
fig. 3 is a block diagram of an apparatus for scheduling data according to another embodiment of the present invention;
fig. 4 is a block diagram of a user equipment according to another embodiment of the present invention;
fig. 5 is a block diagram of an apparatus for scheduling data according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When a GSM system communication system and a UMTS system communication system coexist, or a GSM system communication system and a Long Term Evolution (LTE) system communication system coexist, if the center frequency point interval used by the coexisting systems is smaller than the standard spectrum bandwidth, interference between the systems of different systems may be caused. The embodiment of the invention can be used in the scene of interference caused by the coexistence of the GSM system communication system and the UMTS system communication system, and can also be applied in the scene of interference caused by the coexistence of the GSM system communication system and the LTE system. For convenience of description, in the specific embodiment of the present invention, a case where a GSM communication system and a UMTS communication system coexist is taken as an example for description, and it is understood that the embodiment of the present invention is not limited to a case where two communication systems coexist, and may also be a case where any two other communication systems coexist, for example, the scheme is also applicable to a case where a GSM communication system and an LTE communication system coexist. The embodiment of the present invention is not limited thereto. By the method and the device of the embodiment, the cell service throughput rate can be improved.
The method and apparatus of the embodiments of the present invention may be implemented by a radio access network device, which includes, but is not limited to, any one or more of a base station, a base station controller, or other coordination control devices.
The base station may be a single-system base station, for example, a base station (NodeB) in UMTS, an evolved node b (NodeB or eNB or e-NodeB) in LTE, or a multi-system base station, for example, a multi-system base station including GSM and UMTS, or a multi-system base station including GSM and LTE, or a multi-system base station including GSM, UMTS, and LTE, and the like.
The Base station Controller may be a Base Station Controller (BSC) of GSM, a Radio Network Controller (RNC) in UMTS, or a Base station Controller supporting a communication system of multiple systems.
The other cooperative control device may be a device connected to and performing cooperative control with a plurality of base stations or a plurality of base station controllers or a plurality of base stations and a base station controller.
Fig. 1 is a flowchart of a method for scheduling data according to an embodiment of the present invention. In the embodiment of the invention, the first system communication system and the second system communication system coexist, and the bandwidth interval between the spectrum resources used by the first system communication system and the second system communication system is smaller than the standard spectrum bandwidth. The network systems of the first system communication system and the second system communication system are different, for example, the first system communication system is a GSM system communication system, and the second system communication system is a UMTS system communication system, or the first system communication system is a GSM system communication system, and the second system communication system is an LTE system communication system, which does not affect the implementation of this embodiment. As shown in fig. 1, the data scheduling method may include:
step 101: and acquiring service information of at least one interference frequency point of the first standard communication system in the previous data scheduling period and the current data scheduling period.
The data scheduling period is equal to a data scheduling period of the second-standard communication system, and taking the second-standard communication system as a UMTS-standard communication system as an example, the data scheduling period may be a scheduling period of an HSDPA service, for example, a TTI of 2 milliseconds.
It can be understood that, the first standard communication system herein may refer to a communication system of at least one standard different from the second standard communication system, and the obtaining of the service information of at least one interference frequency point of the first standard communication system may be obtaining the service information of the interference frequency point of each standard communication system respectively.
The interference frequency point is a frequency point which generates interference on the communication system of the second standard in frequency hopping frequency points used when the communication system of the first standard performs services. Taking the first standard communication system as a GSM standard communication system and the second standard as a UMTS standard communication system as an example, since the standard spectrum bandwidth of the UMTS standard communication system is 5MHz, when the frequency interval bandwidth between the frequency points used by the GSM standard communication system and the frequency points used by the UMTS standard communication system is less than 5MHz, the GSM standard communication system will cause large interference to the UMTS standard communication system when performing services on these frequency points, that is, the first standard communication system will generate interference to the second standard communication system, so that the data transmission of the user equipment in the second standard communication system is interfered by the first standard communication system. Among the frequency points used by the communication system of the first standard, a frequency point generating interference to the communication system of the second standard may be referred to as an interference frequency point. Because the frequency spectrum ranges used by the first system communication system and the second system communication system can be preset, the interference frequency point can be determined according to the frequency spectrum resources used by the two systems.
The service information of the interfering frequency point includes, but is not limited to, an average transmission power on the interfering frequency point, a duration of sending data on the interfering frequency point (also referred to as a service duration of the interfering frequency point), and the like, and the embodiment of the present invention is not limited thereto.
In the implementation, the service information of all the interference frequency points may be acquired, or the service information of some interference frequency points in all the interference frequency points may be acquired according to a certain rule, for example, the service information of some interference frequency points with a large transmission power or a long service duration may be acquired, or the service information of selected N interference frequency points may also be acquired, where N is a positive integer greater than or equal to 1, a value of N is set according to an actual requirement, and the N interference frequency points may be N interference frequency points with a large power selected according to the size of the transmission power. The foregoing is merely an example and embodiments of the present invention are not limited in this respect.
Step 102: and determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period on the first user equipment in the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period acquired in the step 101.
The interference information generated by the first standard communication system to the first user equipment can be determined in various ways. For example, one of the ways can be determined by the ratio of the average transmission power of the interference frequency point of the communication system of the first standard to the maximum transmission power of the serving cell of the first user equipment, and the following formula is taken as an example, and the embodiments of the present invention are not limited thereto,
Figure BDA00002782923100121
assuming that the current data scheduling period is the ith data scheduling period, the previous data scheduling period is the ith-1 data scheduling period, and the interference information of the communication system of the first standardiRepresenting interference information generated by a first standard communication system to first user equipment in a current data scheduling period, SUEThe method comprises the steps of representing the suppression proportion of first user equipment to signals of a first standard communication system, representing the maximum transmitting power and service time length of a service cell of the first user equipment by SendBestCellPoweriService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiThe average transmitting power of an interference frequency point of the communication system of the first standard representing the current data scheduling period,
Figure BDA00002782923100122
representing the frequency of each interference bin acquired
Figure BDA00002782923100123
And (6) summing.
According to the formula, the interference information generated by the first standard communication system in the previous data scheduling period to the first user equipment can be obtained in a similar manner:
Figure BDA00002782923100131
step 103: determining interference information generated by a second-system communication system to the first user equipment according to the interference information generated by the first-system communication system to the first user equipment in the previous data scheduling period determined in the step 102 and the Channel Quality Indicator (CQI) reported by the first user equipment and received in the current data scheduling period;
when a first-system communication system and a second-system communication system coexist, and a bandwidth interval between spectrum resources used by the first-system communication system and the second-system communication system is smaller than a standard spectrum bandwidth, interference information affecting a CQI measured by the first user equipment includes interference information generated by the first-system communication system to the first user equipment and interference information generated by the second-system communication system to the first user equipment, and since the channel quality indicator CQI reported by the first user equipment in a current data scheduling period reflects channel quality measurement of the first user equipment to a previous data scheduling period, and the interference information generated by the second-system communication system to the first user equipment is relatively stable, the interference information generated by the first-system communication system to the first user equipment in the previous data scheduling period and the channel quality indicator reported by the first user equipment in the current data scheduling period can be used according to the interference information generated by the first-system communication system in the previous data scheduling period and the channel quality indicator CQI reported by the first user equipment in the current data scheduling period The CQI is used to determine interference information generated by the second standard communication system to the first user equipment, for example:
Figure BDA00002782923100132
the interference information of the second-standard communication system represents the interference information generated by the second-standard communication system to the first user equipment, alpha is a non-orthogonalization factor and is a preset value, the pilot frequency transmitting power proportion is the ratio of the pilot frequency transmitting power of the serving cell of the first user equipment to the maximum transmitting power of the serving cell of the first user equipment, and the pilot frequency transmitting power of the serving cell and the maximum transmitting power of the serving cell can be obtained by configuring data; the correction factor is a preset value, i represents the current data scheduling period, i-1 represents the previous data scheduling period, and CQIiIndicating the CQI reported by the first user equipment and the interference information of the first standard communication system received in the current data scheduling periodi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment.
Step 104: and determining a CQI correction value for data scheduling according to the interference information generated by the first-standard communication system in the current data scheduling period in step 102 and the interference information generated by the second-standard communication system in the step 103.
In order to make the data scheduling of the second standard communication system to the first user equipment more accurate, the CQI correction value may be determined in various ways. For example, one way may be:
Figure BDA00002782923100141
wherein, i represents the current data scheduling period and the interference information of the communication system of the first standardiAnd the interference information of the communication system of the second system represents the interference information of the communication system of the second system on the first user equipment.
Of course, in another embodiment of the present invention, interference factors may be respectively set for the interference information generated by the first-standard communication system to the first user equipment and the interference information generated by the second-standard communication system to the first user equipment in the current data scheduling period, so that the CQI can be corrected more finely.
It should be noted that the above is only an example, and the embodiments of the present invention are not limited thereto.
According to the data scheduling method provided by the embodiment of the invention, the CQI is adjusted by combining the service information of the interference frequency point of the first standard communication system in the previous data scheduling period and the current data scheduling period, so that the adjusted CQI correction value can relatively accurately reflect the channel quality of the current scheduling period, further, the retransmission of the HSDPA can be reduced by scheduling according to the adjusted CQI correction value, and the cell throughput rate is improved.
Fig. 2 is a flowchart of a data scheduling method according to another embodiment of the present invention. In the embodiment of the invention, the first system communication system and the second system communication system coexist, and the bandwidth interval between the spectrum resources used by the first system communication system and the second system communication system is smaller than the standard spectrum bandwidth. The network systems of the first system communication system and the second system communication system are different, for example, the first system communication system is a GSM system communication system, and the second system communication system is a UMTS system communication system, or the first system communication system is a GSM system communication system, and the second system communication system is an LTE system communication system, which does not affect the implementation of this embodiment. The method can be used for user equipment, and as shown in fig. 2, the method comprises:
step 201: sending a Channel Quality Indicator (CQI) corresponding to a second standard communication system to the second standard communication system;
step 202: receiving data transmitted by the communication system of the second standard, wherein the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second system communication system to the user equipment according to the interference information generated by the first system communication system to the user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first system communication system to the user equipment in the current data scheduling period and the interference information generated by the second system communication system to the user equipment.
Taking the UMTS system as an example, the second system communication system may be a data scheduling period, which may be a scheduling period of HSDPA service, for example, a 2 ms TTI.
The interference frequency point is a frequency point which generates interference on the communication system of the second standard in frequency hopping frequency points used when the communication system of the first standard performs services. Taking the first standard communication system as a GSM system and the second standard as a UMTS as an example, since the standard spectrum bandwidth of UMTS is 5MHz, when the frequency interval between the frequency points used by the GSM system and the frequency points used by the UMTS system is less than 5MHz, the GSM standard communication system will cause large interference to the UMTS standard communication system when performing services on these frequency points, that is, the first standard communication system will cause interference to the second standard communication system, so that the data transmission of the user equipment in the second standard communication system is interfered by the first standard communication system. Among the frequency points used by the communication system of the first standard, the frequency point generating interference to the communication system of the second standard may be referred to as an interference frequency point. Because the frequency spectrum ranges used by the first system communication system and the second system communication system can be preset, the interference frequency point can be determined according to the frequency spectrum resources used by the two systems.
The determination of the CQI correction value has already been described in the foregoing method embodiments, and is not described herein again.
According to the data scheduling method provided by the embodiment of the invention, the CQI is adjusted by receiving the service information of the interference frequency point of the first standard communication system of the wireless access network side equipment combined with the previous data scheduling period and the current data scheduling period, so that the adjusted CQI correction value can relatively accurately reflect the channel quality of the current scheduling period, and the data scheduled according to the adjusted CQI correction value can reduce the retransmission of the HSDPA and improve the cell throughput rate.
Fig. 3 is a structural diagram of a data scheduling apparatus according to another embodiment of the present invention. Still take the first standard communication system as the GSM standard communication system and the second standard communication system as the UMTS standard communication system as an example, and the embodiments of the present invention are not limited thereto. As shown, the apparatus comprises:
a first standard service information obtaining module 301, configured to obtain service information of at least one interference frequency point of a first standard communication system in a previous data scheduling period and a current data scheduling period, where the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point that generates interference on the second standard communication system among frequency hopping frequency points used when the first standard communication system performs a service;
the data scheduling period is equal to a data scheduling period of the second-standard communication system, and taking the second-standard communication system as a UMTS system as an example, the data scheduling period may be a scheduling period of HSDPA service, for example, a TTI of 2 milliseconds.
The interference frequency point is a frequency point which generates interference on the communication system of the second standard in frequency hopping frequency points used when the communication system of the first standard performs services. Since they have already been described in the foregoing method embodiments, they are not described in detail here.
The service information of the interference frequency point includes, but is not limited to, an average transmission power on the interference frequency point, a duration of sending data on the interference frequency point, which is also referred to as a service duration of the interference frequency point, and the like.
In the implementation, the service information of all the interference frequency points may be acquired, or the service information of some interference frequency points in all the interference frequency points may be acquired according to a certain rule, for example, the service information of some interference frequency points with a large transmission power or a long service duration may be acquired, or the service information of selected N interference frequency points may also be acquired, where N is a positive integer greater than or equal to 1, a value of N is set according to an actual requirement, and the N interference frequency points may be N interference frequency points with a large power selected according to the size of the transmission power. The foregoing is merely an example and embodiments of the present invention are not limited in this respect.
A first system interference information determining module 302, configured to determine, according to the service information acquired by the first system service information acquiring module 301, interference information that is generated by the first system communication system in the previous data scheduling period and the current data scheduling period to the first user equipment in the second system communication system.
The interference information generated by the first standard communication system to the first user equipment can be determined in various ways. The above method embodiments have been described, and are not described herein again.
For example, the first system interference information determining module 302 may include:
the interference strength determining submodule 3021 is configured to determine the interference strength of the previous data scheduling period and the current data scheduling period of each interference frequency point according to the following formula:
Figure BDA00002782923100171
assuming that the current data scheduling period is the ith data scheduling period, the previous data scheduling period is the (i-1) th data scheduling period, and the interference intensity of each frequency pointiRepresenting the interference strength, S, of the current data scheduling period determined separately for each interfering frequency pointUEThe method represents the suppression ratio of the first user equipment to the first standard communication system signal and the service durationiIndicating the current scheduling period of dataService duration and average transmitting power of interference frequency point of first standard communication systemiAverage transmitting power and service duration of an interference frequency point of a first standard communication system representing current data scheduling periodiAnd average transmission poweriAnd the service information is the service information of the same interference frequency point.
According to the formula, the interference strength of the previous data scheduling period of each interference frequency point can be obtained in a similar manner:
Figure BDA00002782923100172
an interference frequency point interference intensity summing submodule 3022, configured to sum the interference intensity of the previous data scheduling period and the interference intensity of the current data scheduling period of each interference frequency point determined by the interference frequency point interference intensity determining submodule 3021 to obtain the total interference intensity of the previous data scheduling period and the current data scheduling period of the interference frequency point:
an interference information determining submodule 3023, configured to determine, according to the total interference strength of the previous data scheduling period and the current data scheduling period determined by the interference frequency interference strength summing submodule 3022 and the maximum transmission power of the serving cell of the first user equipment, interference information generated by the first-standard communication system in the previous data scheduling period and the current data scheduling period to the first user equipment:
Figure BDA00002782923100174
interference information of communication system of first standardiThe first standard communication system representing the current data scheduling period is opposite to the second standard communication systemInterference information generated by a user equipment, SendBestCellPower represents the maximum transmission power of the serving cell of the first user equipment,
according to the formula, the interference information generated by the first standard communication system in the previous data scheduling period to the first user equipment can be obtained in a similar manner:
Figure BDA00002782923100181
a second-system interference information determining module 303, configured to determine, according to the interference information, which is determined by the first-system interference information determining module 302, of the first-system communication system in the previous data scheduling period and is generated to the first user equipment by the first-system communication system in the previous data scheduling period, and the channel quality indicator CQI, which is received in the current data scheduling period and is reported by the first user equipment, interference information, which is generated to the first user equipment by the second-system communication system, by the second-system communication system.
The method for determining the interference information generated by the second-standard communication system to the first user equipment according to the interference information generated by the first-standard communication system to the first user equipment in the previous data scheduling period and the channel quality indicator CQI reported by the first user equipment and received in the current data scheduling period has been described in the foregoing embodiment, and is not described herein again.
For example, the second system interference information determining module 303 may include:
the total interference information determining submodule 3031 is configured to determine total interference information of a previous data scheduling period of the first-standard communication system and the second-standard communication system according to the following formula:
Figure BDA00002782923100182
wherein i represents a current data scheduling period, and i-1 represents a previous data scheduling periodTotal interference informationi-1Representing total interference information of a previous data scheduling period, alpha is a preset non-orthogonalization factor, the ratio of pilot frequency transmitting power is the ratio of the pilot frequency transmitting power of the serving cell of the first user equipment to the maximum transmitting power of the serving cell of the first user equipment, the correction factor is a preset value, and CQI isiIndicating the CQI reported by the first user equipment and received in the current data scheduling period;
a second format interference information determining submodule 3032, configured to obtain second format interference information according to the total interference information of the previous data scheduling period obtained by the total interference information determining submodule 3031 and interference information, which is determined by the first format interference information determining module 302 and generated by the first format communication system of the previous data scheduling period, to the first user equipment:
interference information of second standard communication system is total interference informationi-1-first format communication system interference informationi-1；
The interference information of the communication system of the second system represents the interference information generated by the communication system of the second system to the first user equipment, and the interference information of the communication system of the first systemi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment.
A CQI modification module 304, configured to determine a CQI modification value for data scheduling according to the interference information, which is determined by the first-system interference information determination module 302 and is generated by the first-system communication system in the current data scheduling period, to the first user equipment, and the interference information, which is determined by the second-system interference information determination module 303 and is generated by the second-system communication system to the first user equipment.
In order to make the data scheduling of the second standard communication system to the first user equipment more accurate, the CQI correction value may be determined in various ways. Since the description has been made in the foregoing method embodiments, the description is omitted here.
According to the data scheduling device provided by the embodiment of the invention, the CQI is adjusted by combining the service information of the interference frequency points of the first standard communication system in different data scheduling periods, so that the adjusted CQI correction value can relatively accurately reflect the channel quality of the current scheduling period, the retransmission of the HSDPA can be reduced by scheduling according to the adjusted CQI correction value, and the cell throughput rate is improved.
It should be noted that the apparatus and method provided in the embodiments of the present invention may be applied to at least two single-standard base stations of different standards, where the single-standard base station may be a base station including a first-standard communication system and a base station including a second-standard communication system, and may also be used for a multi-standard base station, and the multi-standard base station may include the first-standard communication system and the second-standard communication system at the same time. The first-standard communication system provides service information of the first-standard communication system to the second-standard communication system, wherein the service information of at least one interference frequency point of the first-standard communication system including a previous data scheduling period and a current data scheduling period can be provided to the second-standard communication system through an interface between the first-standard communication system and the second-standard communication system, and the second-standard communication system is used for realizing the method embodiment and the device embodiment.
When the method is applied to two different single-system base stations, the service information of the first-system communication system can be acquired through the transmission of an interface between the single-system base stations, a base station controller connected with each single-system base station, or other cooperative control equipment; when the method is applied to a multi-system base station, the service information of the first-system communication system may be acquired through an information transfer interface inside the base station, or may be acquired through transmission by a base station controller connected to each single-system base station, or other cooperative control devices, which is not limited in the embodiment of the present invention.
It should be noted that, for the functional implementation and the interaction manner of each module of the data scheduling apparatus in the embodiment of the present invention, reference may be further made to the description of the related method embodiment.
Fig. 4 is a block diagram of a user equipment according to another embodiment of the present invention. The user equipment comprises a User Equipment (UE) and a User Equipment (UE),
a transmitter 401, configured to transmit a channel quality indicator CQI corresponding to a second-standard communication system to the second-standard communication system;
a receiver 402, configured to receive data transmitted by the communication system of the second standard, where the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second system communication system to the user equipment according to the interference information generated by the first system communication system to the user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first system communication system to the user equipment in the current data scheduling period and the interference information generated by the second system communication system to the user equipment.
Taking the UMTS system as an example, the second system communication system may be a data scheduling period, which may be a scheduling period of HSDPA service, for example, a 2 ms TTI.
The interference frequency point is a frequency point which generates interference on the communication system of the second standard in frequency hopping frequency points used when the communication system of the first standard performs services. The foregoing method embodiments have been described, and are not described in detail herein.
According to the user equipment provided by the embodiment of the invention, the CQI is adjusted by receiving the service information of the interference frequency point of the first standard communication system of the wireless access network side equipment combined with the previous data scheduling period and the current data scheduling period, so that the adjusted CQI correction value can relatively accurately reflect the channel quality of the current scheduling period, and the data scheduled according to the adjusted CQI correction value can reduce the retransmission of the HSDPA and improve the cell throughput rate.
It should be noted that, in the embodiment of the present invention, the functional implementation and the interaction manner of each part of the user equipment may further refer to the description of the related method embodiment.
Fig. 5 is a structural diagram of a communication system of a second standard according to another embodiment of the present invention, and as shown in the drawing, the apparatus includes: a receiver 501 and a processor 502, wherein,
a receiver 501, configured to receive a channel quality indicator CQI reported by a first user equipment;
the processor 502 is configured to obtain service information of at least one interference frequency point of a previous data scheduling period and a current data scheduling period of a first standard communication system, where the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system among frequency hopping frequency points used when the first standard communication system performs a service; determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period; determining interference information generated by a second-standard communication system to the first user equipment according to the interference information generated by the first-standard communication system to the first user equipment in the previous data scheduling period and the Channel Quality Indicator (CQI) received in the current data scheduling period and reported by the first user equipment; and determining a CQI correction value for data scheduling according to interference information generated by a first standard communication system to the first user equipment and interference information generated by a second standard communication system to the first user equipment in a current data scheduling period.
Each component of the second standard communication system in the embodiment of the present invention may be configured to implement the functions of each step of the data scheduling method in the foregoing related method embodiment, and since each step has been described in detail in the foregoing method embodiment, no further description is given here.
It should be noted that, in the embodiment of the present invention, the functional implementation and the interaction manner of each component of the second standard communication system may further refer to the description of the related method embodiment.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (24)

1. A method of data scheduling, the method comprising,
acquiring service information of at least one interference frequency point of a first standard communication system in a previous data scheduling period and a current data scheduling period, wherein the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system carries out service;
determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period;
determining interference information generated by a second-standard communication system to the first user equipment according to the interference information generated by the first-standard communication system to the first user equipment in the previous data scheduling period and the Channel Quality Indicator (CQI) received in the current data scheduling period and reported by the first user equipment;
and determining a CQI correction value for data scheduling according to the interference information generated by the first-standard communication system to the first user equipment in the current data scheduling period and the interference information generated by the second-standard communication system to the first user equipment.
2. The method of claim 1, wherein the service information of the interference frequency point of the communication system of the first standard comprises:
average transmit power and traffic duration.
3. The method according to claim 2, wherein the determining, according to the service information of at least one interference frequency point of the first standard communication system in the previous data scheduling period and the current data scheduling period, the interference information generated to the first user equipment by the first standard communication system in the previous data scheduling period and the current data scheduling period includes:
Figure FDA00003445311700011
Figure FDA00003445311700012
wherein i represents the current data scheduling period, and i-1 represents the previous oneData scheduling period, interference information of communication system of first standardiRepresenting interference information S generated by a first standard communication system to the first user equipment in the current data scheduling periodUEThe method comprises the steps of representing the suppression proportion of the first user equipment to signals of a first standard communication system, representing the maximum transmitting power and the service time length of a service cell of the first user equipment by SendBestCellPoweriService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiThe average transmitting power of an interference frequency point of the communication system of the first standard representing the current data scheduling period,
Figure FDA00003445311700021
representing the frequency of said at least one frequency point
Figure FDA00003445311700022
And (6) summing.
4. The method according to any one of claims 1 to 3, wherein the determining, according to the interference information generated by the communication system of the first standard in the previous data scheduling period to the first user equipment and the channel quality indicator CQI reported by the first user equipment and received in the current data scheduling period, the interference information generated by the communication system of the second standard to the first user equipment comprises:
Figure FDA00003445311700023
wherein the interference information of the second-standard communication system represents the interference information generated by the second-standard communication system to the first user equipment, alpha is a preset non-orthogonalization factor, the pilot frequency transmitting power ratio is the ratio of the pilot frequency transmitting power of the service cell of the first user equipment to the maximum transmitting power of the service cell of the first user equipment, the correction factor is a preset value, i represents the current data scheduling period,i-1 denotes the previous data scheduling period, CQIiIndicating the CQI reported by the first user equipment and the interference information of the communication system of the first standard received in the current data scheduling periodi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment.
5. The method according to any one of claims 1 to 4, wherein the determining the CQI correction value for data scheduling according to the interference information generated by the communication system of the first standard to the first user equipment and the interference information generated by the communication system of the second standard to the first user equipment in the current data scheduling period comprises:
Figure FDA00003445311700024
,
wherein, i represents the current data scheduling period and the interference information of the communication system of the first standardiAnd the interference information of the communication system of the second system represents the interference information of the communication system of the second system on the first user equipment.
6. The method according to any of claims 1 to 5, wherein the first standard communication system is a global system for mobile communications (GSM), the second standard communication system is a Universal Mobile Telecommunications System (UMTS), and the data scheduling period is a downlink packet service (HSDPA) Transmission Time Interval (TTI).
7. A method of data scheduling, the method comprising,
sending a Channel Quality Indicator (CQI) corresponding to a second standard communication system to the second standard communication system;
receiving data transmitted by the communication system of the second standard, wherein the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second standard communication system to the first user equipment according to the interference information generated by the first standard communication system to the first user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first standard communication system to the first user equipment in the current data scheduling period and the interference information generated by the second standard communication system to the first user equipment.
8. The method of claim 7, wherein the first standard communication system is a global system for mobile communications (GSM), the second standard communication system is a Universal Mobile Telecommunications System (UMTS), and the data scheduling period is a downlink packet service (HSDPA) Transmission Time Interval (TTI).
9. An apparatus for scheduling data, the apparatus comprising:
the system comprises a first standard service information acquisition module, a second standard service information acquisition module and a service information acquisition module, wherein the first standard service information acquisition module is used for acquiring service information of at least one interference frequency point of a previous data scheduling period and a current data scheduling period of a first standard communication system, the data scheduling period is equal to a data scheduling period of a second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system performs service;
the first system interference information determining module is used for determining interference information generated by the first system communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information acquired by the first system service information acquiring module;
a second system interference information determining module, configured to determine, according to the interference information, which is determined by the first system interference information determining module, of the first system communication system in the previous data scheduling period and is generated to the first user equipment, and a channel quality indicator CQI, which is received in the current data scheduling period and is reported by the first user equipment, interference information, which is generated to the first user equipment by the second system communication system, of the current data scheduling period;
and the CQI correction module is used for determining a CQI correction value for data scheduling according to the interference information generated by the first-system communication system to the first user equipment in the current data scheduling period determined by the first-system interference information determination module and the interference information generated by the second-system communication system to the first user equipment determined by the second-system interference information determination module.
10. The apparatus of claim 9, wherein the service information of the interference frequency point of the communication system of the first standard includes:
average transmit power and traffic duration.
11. The apparatus of claim 10, wherein the first system interference information determining module comprises:
an interference frequency point interference strength determination submodule for determining the interference strength of the previous data scheduling period and the current data scheduling period of each interference frequency point by the following formula,
Figure FDA00003445311700041
wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the interference intensity of each frequency pointiRepresenting the interference to eachInterference intensity S of current data scheduling period respectively determined by frequency pointsUEThe method represents the suppression ratio of the first user equipment to the first standard communication system signal and the service durationiService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiAverage transmitting power and service duration of an interference frequency point of a first standard communication system representing current data scheduling periodiAnd average transmission poweriService information of the same interference frequency point;
an interference frequency point interference intensity summing submodule, configured to sum the interference intensity of the previous data scheduling period and the current data scheduling period of each interference frequency point determined by the interference frequency point interference intensity determining submodule 3021 to obtain the total interference intensity of the previous data scheduling period and the current data scheduling period of the interference frequency point,
Figure FDA00003445311700043
Figure FDA00003445311700044
an interference information determining submodule, configured to determine, according to the total interference strength of the previous data scheduling period and the current data scheduling period determined by the interference frequency point interference strength summing submodule and the maximum transmission power of the serving cell of the first user equipment, interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period on the first user equipment:
Figure FDA00003445311700051
Figure FDA00003445311700052
wherein, the interference information of the communication system of the first standardiInterference information generated by a first standard communication system representing the current data scheduling period to the first user equipment, and interference information of the first standard communication systemi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment, wherein the SendBestCellPower represents the maximum transmitting power of a service cell of the first user equipment.
12. The apparatus according to any of claims 9 to 11, wherein the second system interference information determining module comprises,
the total interference information determining submodule is used for determining the total interference information of a previous data scheduling period of the first standard communication system and the second standard communication system according to the following formula:
Figure FDA00003445311700053
wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the total interference informationi-1Representing total interference information of a previous data scheduling period, alpha is a preset non-orthogonalization factor, the ratio of pilot frequency transmitting power is the ratio of the pilot frequency transmitting power of the serving cell of the first user equipment to the maximum transmitting power of the serving cell of the first user equipment, the correction factor is a preset value, and CQI isiIndicating the CQI reported by the first user equipment and received in the current data scheduling period;
a second system interference information determining submodule, configured to obtain second system interference information according to the total interference information of the previous data scheduling period obtained by the total interference information determining submodule and interference information, which is generated by the first system communication system of the previous data scheduling period and is determined by the first system interference information determining module, to the first user equipment:
interference information = total interference information of second standard communication systemi-1-first format communication system interference informationi-1；
Wherein i represents a current data scheduling period, i-1 represents a previous data scheduling period, interference information of the communication system of the second system represents interference information generated by the communication system of the second system to the first user equipment, and interference information of the communication system of the first system represents interference information of the communication system of the first systemi-1And representing interference information generated by the first standard communication system of the previous data scheduling period to the first user equipment.
13. The apparatus according to any of claims 9 to 12, wherein the CQI module determines the CQI correction value by a formula comprising:
Figure FDA00003445311700054
，
wherein, i represents the current data scheduling period and the interference information of the communication system of the first standardiAnd the interference information of the communication system of the second system represents the interference information of the communication system of the second system on the first user equipment.
14. The apparatus according to any of claims 9 to 13, wherein the communication system of the first standard is a global system for mobile communications GSM, the communication system of the second standard is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
15. A user equipment, the user equipment comprising:
the transmitter is used for transmitting a channel quality indicator CQI corresponding to a second standard communication system to the second standard communication system;
a receiver for receiving the data transmitted by the communication system of the second standard, wherein the transmitted data is scheduled by the communication system of the second standard according to the CQI correction value, wherein the CQI correction value is interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the user equipment by the second standard communication system according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period, and obtaining interference information generated by a second standard communication system to the user equipment according to the interference information generated by the first standard communication system to the user equipment in the previous data scheduling period and the CQI, and further determining according to the interference information generated by the first standard communication system to the user equipment in the current data scheduling period and the interference information generated by the second standard communication system to the user equipment.
16. The UE of claim 15, wherein the first standard communication system is GSM, the second standard communication system is UMTS, and the data scheduling period is a downlink packet service (HSDPA) Transmission Time Interval (TTI).
17. A communication system, wherein the communication system is a second standard communication system, and the communication system comprises:
the receiver is used for receiving a channel quality indicator CQI reported by first user equipment;
the processor is used for acquiring service information of at least one interference frequency point of a previous data scheduling period and a current data scheduling period of the first standard communication system, wherein the data scheduling period is equal to the data scheduling period of the second standard communication system, and the interference frequency point is a frequency point which generates interference on the second standard communication system in frequency hopping frequency points used when the first standard communication system carries out service; determining interference information generated by the first standard communication system of the previous data scheduling period and the current data scheduling period to the first user equipment according to the service information of at least one interference frequency point of the first standard communication system of the previous data scheduling period and the current data scheduling period; and determining CQI correction values for data scheduling according to the interference information generated by the first-system communication system of the current data scheduling period on the first user equipment and the interference information generated by the second-system communication system on the first user equipment.
18. The communication system according to claim 17, wherein the service information of the interference frequency point of the communication system of the first standard includes:
average transmit power and traffic duration.
19. The communication system according to claim 18, wherein the processor is specifically configured to determine, according to the service information of at least one interference frequency point of the first-standard communication system in the previous data scheduling period and the current data scheduling period, interference information that is generated to the first user equipment by the first-standard communication system in the previous data scheduling period and the current data scheduling period in the following manner:
Figure FDA00003445311700071
Figure FDA00003445311700072
wherein i represents the current data scheduling period, i-1 represents the previous data scheduling period, and the interference information of the communication system of the first standardiRepresenting interference information S generated by a first standard communication system to the first user equipment in the current data scheduling periodUERepresenting the suppression of the first user equipment to the first standard communication system signalScale, SendBestCellPower represents the maximum transmitting power of the serving cell of the first user equipment, service durationiService duration and average transmitting power of one interference frequency point of first standard communication system for representing current data scheduling periodiThe average transmitting power of an interference frequency point of the communication system of the first standard representing the current data scheduling period,
Figure FDA00003445311700073
representing the frequency of each interference bin acquired
Figure FDA00003445311700074
And (6) summing.
20. The communication system according to any one of claims 17 to 19, wherein the processor is specifically configured to determine, according to the interference information generated by the first-standard communication system in the previous data scheduling period to the first user equipment and the channel quality indicator CQI reported by the first user equipment and received in the current data scheduling period, the interference information generated by the second-standard communication system to the first user equipment by:
Figure FDA00003445311700081
wherein, the interference information of the second system communication system represents the interference information generated by the second system communication system to the first user equipment, α is a preset non-orthogonalization factor, the pilot frequency transmitting power ratio is the ratio of the pilot frequency transmitting power of the service cell of the first user equipment to the maximum transmitting power of the service cell of the first user equipment, the correction factor is a preset value, i represents the current data scheduling period, i-1 represents the previous data scheduling period, and CQI is used for the first user equipment to perform the data transmission in the first user equipmentiIndicating the CQI reported by the first user equipment and the interference information of the communication system of the first standard received in the current data scheduling periodi-1Indicating a previous data scheduling periodThe first standard communication system generates interference information to the first user equipment.
21. The communication system according to any one of claims 17 to 20, wherein the processor is specifically configured to determine the CQI correction value for data scheduling according to the interference information generated by the communication system of the first standard for the current data scheduling period to the first user equipment and the interference information generated by the communication system of the second standard to the first user equipment by:
Figure FDA00003445311700082
,
wherein, i represents the current data scheduling period and the interference information of the communication system of the first standardiAnd the interference information of the communication system of the second system represents the interference information of the communication system of the second system on the first user equipment.
22. The communication system according to any of the claims 17 to 21, wherein the first standard communication system is a global system for mobile communications GSM, the second standard communication system is a universal mobile telecommunications system UMTS, and the data scheduling period is a downlink packet service HSDPA transmission time interval TTI.
23. A multi-standard base station, comprising:
the first standard communication system provides service information of at least one interference frequency point of the first standard communication system in a previous data scheduling period and a current data scheduling period to the second standard communication system;
the second standard communication system, comprising the data scheduling apparatus according to any one of claims 7 to 10.
24. A multi-standard base station, comprising:
the first standard communication system provides service information of at least one interference frequency point of the first standard communication system in a previous data scheduling period and a current data scheduling period to the second standard communication system;
a communication system of a second standard according to any of claims 17 to 22.
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