CN1384634A - Capacity increasing method for CDMA mobile communication system - Google Patents

Capacity increasing method for CDMA mobile communication system Download PDF

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CN1384634A
CN1384634A CN01115805A CN01115805A CN1384634A CN 1384634 A CN1384634 A CN 1384634A CN 01115805 A CN01115805 A CN 01115805A CN 01115805 A CN01115805 A CN 01115805A CN 1384634 A CN1384634 A CN 1384634A
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data service
transmission rate
mobile communication
load
base station
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CN1146173C (en
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吕玲
孙波
吴勇
嵇家刚
陈巍
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The method of increaisng capacity of CDMA mobile communication system includes: counting the present system load; triggering the dynamic system capacity regulation in case of overload; and maintaining or restoring the transmission rate of data service in case of underload. The relationshiop between the present transmission rate R' after regulation and the transmission rate R before regulation is 2x(1-Q)xR, where Q is the present percent load. The regulated data service incldues mobile station user's transmission rate, and the transmission rate of some data service or present maximum-power data service.

Description

Improve a kind of method of CDMA mobile communication systems capacity
The present invention relates to a kind of mobile communication system technology, relate to a kind ofly in code division multiple access (CDMA) mobile communication system or rather, how to improve the method for power system capacity.
It is the principal element of restriction direct sequence CDMA mobile communication system capacity that multiple access disturbs, and reduces the direct measure that multiple access disturbs, and is control interference signal source-comprise the transmitting power of each base station of control and each user of mobile station, i.e. power control is called for short power control.The basic principle that this power control is followed is: need satisfy the requirement of each user of mobile station to telecommunication service quality on the one hand, also should make the transmitting power minimum of each user of mobile station on the other hand, by planning and control transmitting power meticulously, accomplish that power system capacity maximization and systematic function optimization also are feasible.
In the business that CDMA mobile communication system provided, include speech business and data service, correspondingly, the capacity of CDMA mobile communication system also comprises speech business capacity and data service capacity.In system by IS-95 communication standard defined, the main finger speech sound business of power system capacity capacity, and the major technique of raising speech business capacity is power control.Therefore, power control is to improve one of key technology of CDMA mobile communication system capacity.
The power control of CDMA mobile communication system is divided into forward power control and reverse power control.And the inner-loop power control in the reverse power control is meant: the base station is to carrying out valuation from the signal strength signal intensity of specific user of mobile station, and the information bit energy that records this user of mobile station (is expressed as E with the ratio of disturbance spectrum density b/ I 0Or Eb/No), and according to E b/ I 0Whether be below or above desirable value, the power control bit of determining to feed back to this user of mobile station is to get " 0 " or get " 1 ", (get " 0 " expression and need to increase power, get " 1 " expression and need reduce power), user of mobile station increases or reduces transmitting power accordingly according to this power control bit that is received again, with the E that guarantees that the base station was received b/ I 0(Eb/No) can maintain on the fixing level.
If power control is undesirable, actual transmitting power has the fluctuation of 20%-30%, under the very big situation of the transmitting power of data service own, such fluctuation is likely fatal, because its influence is not only at this data service, and for other user, it becomes a big interference source undoubtedly.
Improving transmitting power is a kind of method of existing power control, to guarantee certain transmission quality, this transmission quality is weighed with the frame error rate index, but be at user of mobile station under the situation of cell edge, or deep fade has taken place in transmission channel, improve transmitting power simply and just may not meet the demands this moment, and as previously mentioned, the transmitting power of high speed data transmission service is very high, corresponding interference is very big, continuing increases transmitting power again, is exactly a powerful interference source with respect to other user, and its consequence is inconceivable.
The another kind of thinking of power control is: by adjusting the message transmission rate of user data service, the transmission rate that particularly reduces data service is adjusted the load of sub-district, under the effect of power control, reduces transmitting power, reduce the interference of system simultaneously, the mitigation system load.The method that this kind adjusted data service rate is to be that cost exchanges power system capacity for to sacrifice speed, yet, existing method of carrying out the speed change, it is the method that adopts speed to become multiple to reduce, thereby cause excessive adjustment or too small adjustment, speed height variation greatly can cause the system works instability.
The purpose of adjusting data rate is in order promptly to meet with a response when the unexpected variation of communication environment occurring, promptly when speed changes, in order to keep certain service quality, user's transmitting power to be changed thereupon.
To background noise density is N 0, bandwidth is W, user data rate is R i, the user of mobile station transmitting power is P i, the information bit energy that the base station receives i user with the ratio (Eb/Io) of disturbance spectrum density is: E b I o = G mi · P i / R i ( Σ j = i J G mj · P j + N o ) / w
G in the formula MiRepresent the path gain of i user of mobile station, ∑ to base station m J=i JG MjRepresent in J the user of mobile station that the transmitting power of other all user of mobile station is to i the interference summation that user of mobile station produced except that i user of mobile station.
In order to keep certain service quality, promptly under the condition that target frame error rate Tar FER remains unchanged, answer P i R i = P i R i Make and adjust preceding (P i/ R i) and adjust back (P i'/R i') the ratio of transmitting power and message transmission rate be consistent, shown in following formula, therefore when increasing or reducing message transmission rate (R), transmitting power (P) also can increase thereupon or reduce, and promptly presents proportional relation between transmitting power and the message transmission rate.
The objective of the invention is to design a kind of method that improves the CDMA mobile communication systems capacity, be according to the situation of mobile communication system when preload, adjust in real time the transmission rate of corresponding data business in right amount, also promptly adjust its transmitting power, to keep capability of communication system and stability.
The technical scheme that realizes the object of the invention is such: a kind of method that improves the CDMA mobile communication systems capacity is characterized in that comprising:
Present load situation to system is added up; The dynamic adjustment of triggering system capacity when overload occurring, the transmission rate of reduction data service; When underload occurring, keep the transmission rate of data service or the transmission rate of adjusted data service is reverted to value before adjusting.
Described overload is meant that the present load of statistics is more than or equal to set system load thresholding (Th); Described underload is meant that the present load of statistics is less than set system load thresholding (Th).
Described set system load thresholding (Th) is 75% of a system design load total capacity.
The transmission rate of described data service comprises the transmission rate of the data service of a certain user of mobile station, the transmission rate of perhaps a certain class data service, the perhaps transmission rate of the data service of current transmit power maximum.
The described dynamic adjustment of triggering system capacity when overload occurring is that current transmission rate R ' is adjusted into 2 * (1-Q) * R, and R is the transmission rate of the former data service before adjusting, and Q is for when preload percentage.
Also comprise by the priority orders of predefined data service and dynamically adjusting.
Described priority orders by predefined data service is dynamically adjusted, and further comprises: the transmission rate of at first adjusting the minimum data service of priority; During still more than or equal to described predetermined system load-threshold (Th), adjust the transmission rate of the data service of next priority again, in the present load of statistics until the transmission rate of the highest data service of priority.
In the transmission rate that reduces data service, also comprise and reduce its transmitting power; With, when reverting to value before adjusting, the transmission rate with adjusted data service also comprises its transmitting power of increase.
The transmission rate of described reduction data service and transmitting power thereof, revert to the value before adjusting and increase its transmitting power with transmission rate adjusted data service, it is front end signal processing subsystem power controlling control subsystem by the user of mobile station end, with data-message distribution module, finish by load control module in the control resource management module and power controlling control subsystem by base station end and base station controller thereof.
Said process further comprises:
A. measurement report is measured and generated to the user of mobile station end to the signal quality that receives, and this measurement report sends to the base station with the reverse feedback link signal;
B. base station controller is handled and sent in the base station to the reverse signal that receives;
C. estimate the information bit energy of this user of mobile station signal and the ratio (Eb/Io) of disturbance spectrum density by the baseband processing unit in the base station controller, and compare with (Eb/Io) threshold value of setting, determine power control ratio specially for 0 or 1, and send it to this user of mobile station;
D. the information detection system load constantly that reports according to the base station of base station controller, and compare with the system load thresholding of setting (Th), in the system load that detects during greater than this thresholding, press R '=2 * (1-Q) * R algorithm and adjust the transmission rate of current data business, R is the transmission rate of former data service, and Q is for working as preload percentage;
E. during less than the system load thresholding (Th) set, make the transmission rate R ' of current data business keep or revert to the transmission rate R of former data service in the system load that detects;
F. user of mobile station increases or the reduction transmitting power according to the power control bit that is received is corresponding.
Because CDMA mobile communication system has the characteristic of soft capacity, promptly adopt to comprise direct-cut operation, soft handover, the handoff technique of More Soft Handoff etc. switches to the characteristic of non-overloaded cells with the business of overloaded cells, to realize the dynamic adjustment of cell capacity.And method of the present invention, be to add up by loading condition to the sub-district, then adjust the transmission rate of data service automatically, promptly when overload appears in the sub-district, the dynamic adjustment of triggering cell capacity, and according to the situation of system loading, reduce the transmission rate of the data service of a certain user or a certain class data service or transmitting power maximum, this moment, this user or related service user's transmitting power also can decrease, the gross power that the base station is received reduces, just can hold more calling, reach the effect that increases power system capacity; When the sub-district is in the underload situation, more adjusted data rate is reverted to original data-rate value, or keep former data-rate value constant, make under high data rate and transmit.Therefore, method of the present invention is the method that a kind of situation according to the current load of machinery systems of mobile communication system is adjusted message transmission rate, further Adjustment System capacity timely and appropriately.
Method of the present invention is adjusted data traffic transmission speed according to current load condition, is a kind of comparatively simple and method accurately, in the data rate ranges that data service allows, comes the data rate of suitable change business.The size of speed is come in good time and adjusted rightly to method of the present invention according to the situation of mobile communication system when preload,, and load (load) is big more, and the amplitude that speed is adjusted is also big more.As when load is big, the transmission rate of the data service by reducing a certain user or a certain class data service or transmitting power maximum is to guarantee to insert more calling; When load hour, then keep or data rate adjusted again reverting to original value, to improve transmission rate.
In reverse inner loop power control, because the time of inner-loop power control is 800 times/second, therefore the time of reaction is very fast, because of adjustment speed can not considered to producing the needed time of volume change.
When auxiliary channel (SCH) was used in data service, its speed generally all can be more than or equal to 19.2kbps, and speed is high more, and was just big more through adjusting reducible power or interference range, adjusts better effects if.Just carry out the speed adjustment and the present invention is a speed in data service in more than or equal to 38.4kbps, improve the stability and the capacity of system with this.
Further specify technical scheme of the present invention below in conjunction with embodiment and accompanying drawing.
Fig. 1 is a cell mobile communication systems model structure schematic diagram.
Fig. 2 is the first embodiment FB(flow block) that power of the present invention is adjusted.
Fig. 3 is the second embodiment FB(flow block) that power of the present invention is adjusted.
Fig. 4 is user's travelling carriage end structure schematic diagram in the mobile communication system.
Fig. 5 is a base station controller structural representation in the mobile communication system.
Referring to Fig. 1, the model of a cell mobile communication systems shown in the figure comprises user of mobile station end, base station end (BTS) and base station controller (BSC).Handle the call volume of cell mobile communication systems by the treatment system in the base station controller, base station controller comes the calling of receiving mobile user side through a series of base station and the user of mobile station end is sent to call out.Base station and a lot of user of mobile station communicate, and base station controller and a lot of base station communicate.
Referring to Fig. 2, be a kind of embodiment flow process of the inventive method.
Step 21, system continues the loading condition of detection system (or sub-district);
Step 22, system (or sub-district) load that detects and the threshold value of presetting are compared, default threshold value is the threshold T h that the trigger data rate dynamic is adjusted, can determine according to the actual conditions of system, 0.75 (perhaps being more than 0.75) that generally can be decided to be system's heap(ed) capacity is because total noise-plus-interference power I that the general requirement of system receives the base station 0With background noise N 0Ratio limit, dedicated bandwidth W makes normalized again, can be expressed as I 0W/N 0W is less than 1/ η, and η is less than 1, and the representative value of η is 0.1 to 0.25, corresponding to the ratio I of power 0/ N 0=6dB to 10dB works as I 0/ N 0During=6dB, the load percentage of system is 75%, is percent 75 of heap(ed) capacity, and the present invention is with this threshold T h that adjusts as the trigger data rate dynamic.
Step 24, if the current load of the system (or sub-district) that detects is during more than or equal to threshold T h, data service is by new speed R ' transmission, the transmission rate that is about to data service is adjusted into R ' by R, and R '=2 * (1-Q) * R, wherein R is the transmission rate of original data service, and Q is for working as preload percentage;
Step 23 when if system (or sub-district) present load that detects is lower than threshold T h, keeps the speed of data service constant, promptly keep or the restore data business reorganization before former transmission rate R, can be expressed as: data service rate=R;
Step 25, retrieval system re-executes step 21.
The adjustment thought that this embodiment embodied is: system sets earlier and adjusts thresholding, when system's actual loading during more than or equal to this thresholding, will be according to adjusting the speed of a certain user data service when the size of preload percentage Q or adjusting the speed of a certain class data service or adjust the speed (speed for the data service that specific (special) requirements is arranged can not adjust yet certainly) of the data service of current transmit power maximum.It is big more to load, and the degree that speed is adjusted is also just big more, helps increasing the capacity of the stability and the system of system; And if system's actual loading (load percentage) is during less than this thresholding, just keeps the data rate of former data service or the data rate of data service is reverted to data service rate before adjusting.
Referring to Fig. 3, be the another kind of embodiment flow process of the inventive method.
Step 31, system continues the loading condition of detection system (or sub-district);
Step 32, system (or sub-district) load that detects and the threshold value of presetting are compared, default threshold value is the threshold T h that the trigger data rate dynamic is adjusted, and can determine according to the actual conditions of system, generally can be decided to be 0.75 (perhaps being more than 0.75) of system's heap(ed) capacity;
Step 34 is to 37, if current load is during more than or equal to threshold T h, allow data service by new speed R ' transmission, the transmission rate that is about to data service is adjusted into R ' by R, but its adjustment is undertaken by priority preset, promptly by the priority of system's preliminary setting data business, as be taken as Three Estate, hierarchal order is: data service 1＞＞data service 2＞＞data service 3, during adjustment, should adjust other data service 3 of lowermost level earlier, after the transmission rate through adjusting other data service 3 of lowermost level, if the present load of system is then further adjusted data service 2 more still more than or equal to threshold T h, after the transmission rate through adjusting other data service 2 of this intergrade, if the present load of system still more than or equal to threshold T h, is further adjusted the transmission rate of highest ranking data service 1 at last again, the R ' in the above-mentioned adjustment process also calculates by formula R '=2 * (1-Q) * R, wherein R is the transmission rate of original data service, and Q is current load percentage;
Step 38, retrieval system re-executes step 31.
Step 33, when execution in step 32, when if system (sub-district) present load that detects is lower than heap(ed) capacity Th, keep the speed of data service constant, promptly keep current data traffic transmission speed R, or step 34 to 37 in, after the transmission rate of the data service of adjusting the 3rd, the 2nd grade, if present load (load percentage) Q of system is less than this threshold T h, then system just reverts to the preceding speed of adjustment with the data rate of data service, can be expressed as: data service rate=R.
The adjustment thought that this embodiment embodied is: system sets earlier and adjusts thresholding, when system's actual loading during more than or equal to this thresholding, will be according to from the lowermost level to the superlative degree, adjusting the speed of a certain user data service in proper order or adjust the speed of a certain class data service or adjust the speed (speed for the data service that specific (special) requirements is arranged can not adjust yet certainly) of the data service of current transmit power maximum when the size of preload percentage Q and by default data service priority, as adjusting the data rate of the data service of lowest priority earlier, when the data rate of other data service of lowermost level is adjusted to other bottom line of this level that system sets, if system still transships, adjust next the speed of data service of priority more successively, adjust the speed of the highest data service of priority at last.When system only sets a thresholding, and load is during less than this thresholding, then recovers the data rate adjusted, and reverts to original data service rate.
The core technology of the inventive method is: by the default load-threshold; When present load surpasses this thresholding, carry out the adjustment (reduction) of data traffic transmission speed; In present load during, keep the former transmission rate of data service constant or the transmission rate of controlled data service returned to original data service rate less than this thresholding.
Method of adjustment of the present invention, can only carry out at the data service of a certain user of mobile station, also can carry out at a certain class data service of system (sub-district), even carry out at the data service of current transmit power maximum, needs with system are fixed, have the data service of specific (special) requirements not adjust for some.
Referring to Fig. 4, the user of mobile station end includes antenna subsystem 41, Multiplexing Unit 42, front end signal processing subsystem 43, power control subsystem 44 and service sub-system 45.
Referring to Fig. 5, the base station controller end includes frame and recovers module 51, data-message distribution module 52, power control subsystem 53, resource management module 54 and service sub-system module 55, wherein 541 are load control modules in the resource management module 54.
In conjunction with referring to Fig. 4, Fig. 5, further specify the process of carrying out data service rate adjustment and transmitting power adjustment thereof by the inventive method.
1. antenna subsystem 41 receptions of certain user of mobile station end are from the pilot signal of base station end forward link, and be sent to Multiplexing Unit 42, Multiplexing Unit 42 is isolated the forward link signal on the forward direction frequency and is sent to front end signal processing subsystem 43, this forward link signal is also delivered to power control subsystem 44 through front end signal processing subsystem 43, the signal quality of 44 pairs of receptions of power control subsystem is measured, generate measurement report, and measurement report is sent to the base station through Multiplexing Unit 42 with by antenna subsystem 41 with the reverse feedback link signal;
2. the antenna subsystem of base station receives the signal from the reverse feedback link of this user of mobile station on reverse frequency, and signal is sent to Multiplexing Unit, Multiplexing Unit is sent to reverse information processing subsystem with the reverse signal that receives and carries out necessary front end amplification, Base-Band Processing and frame are handled, again this message is sent to base station controller, estimate the information bit energy of this user of mobile station signal and the ratio (Eb/Io) of disturbance spectrum density by the baseband processing unit in the base station controller, and compare with the threshold value of the Eb/Io that sets, according to comparative result, determine power control bit (0 or 1), and it is sent to this user of mobile station again, user of mobile station increases or reduces transmitting power accordingly again according to this power control bit that receives;
3. in above-mentioned power control process, base station controller recovers (51) through frame, to data-message distribution module 52, this data-message distribution module was exported to power control subsystem 53, resource management module 54 and service sub-system 55 in 52 minutes three the tunnel, and the information that is reported according to the base station by the load control module in the resource management module 54 541 is the situation of detection system (sub-district) load constantly;
4. system's (or sub-district) load and the system's maximum load thresholds set that detects compared, when the thresholding of system (or sub-district) load that detects greater than setting, when being system (or sub-district) overload, just revise, adjust the transmission rate of the data service of the transmission rate of the data traffic transmission speed of this user of mobile station in the resource management module 54 or a certain class data service or current transmit power maximum, make adjusted speed R ' be according to algorithm of the present invention; 2 * (1-Q) * R, R are the former transmission rate of data service;
5. base station controller is to the base station issuing message, frame through baseband processing unit is handled the Eb/Io that obtains to receive subscriber signal, and compare with the Eb/Io threshold value of setting, as the Eb/Io that receives subscriber signal during greater than the Eb/Io threshold value set, the power control bit that sends to user of mobile station is put ' 1 ', this user of mobile station will reduce transmitting power automatically by power control bit ' 1 ';
6. when the thresholding of system (sub-district) load that detects less than setting, be that system (sub-district) is when being in light load state (underload), just revise, adjust the transmission rate of the data service of the transmission rate of the data traffic transmission speed of this user of mobile station in the resource management module 54 or a certain class data service or current transmit power maximum, make adjusted speed R ' keep or revert to the transmission rate R of former data service according to algorithm of the present invention;
7. base station controller is to the base station issuing message, frame through baseband processing unit is handled the Eb/Io that obtains to receive subscriber signal, and compare with the Eb/Io threshold value of setting, at the Eb/Io that receives subscriber signal during less than the Eb/Io threshold value set, the power control bit that sends to user of mobile station is put ' 0 ', this user of mobile station will increase transmitting power automatically by power control bit ' 0 '.
The method of increase power system capacity of the present invention is a kind of method of carrying out the adjustment of data traffic transmission speed according to system load; The technology that method of the present invention has utilized the CDMA mobile communication systems soft capacity to adjust, and on this technical foundation, make improvements.
The inventive method is through carrying out analogue test in the CDMA2000 mobile communication system, the software that adopts ready-made hardware and design by inventive concept has been obtained expected effect.

Claims (10)

1. method that improves the CDMA mobile communication systems capacity is characterized in that comprising:
Present load situation to system is added up; The dynamic adjustment of triggering system capacity when overload occurring, the transmission rate of reduction data service; When underload occurring, keep the transmission rate of data service or the transmission rate of adjusted data service is reverted to value before adjusting.
2. a kind of method that improves the CDMA mobile communication systems capacity according to claim 1 is characterized in that: described overload is meant that the present load of statistics is more than or equal to set system load thresholding (Th); Described underload is meant that the present load of statistics is less than set system load thresholding (Th).
3. a kind of method that improves the CDMA mobile communication systems capacity according to claim 2 is characterized in that: described set system load thresholding (Th) is 75% of a system design load total capacity.
4. a kind of method that improves the CDMA mobile communication systems capacity according to claim 1, it is characterized in that: the transmission rate of described data service, the transmission rate that comprises the data service of a certain user of mobile station, the transmission rate of perhaps a certain class data service, the perhaps transmission rate of the data service of current transmit power maximum.
5. a kind of method that improves the CDMA mobile communication systems capacity according to claim 1, it is characterized in that: the described dynamic adjustment of triggering system capacity when overload occurring, be that current transmission rate R ' is adjusted into 2 * (1-Q) * R, R is the transmission rate of the former data service before adjusting, and Q is for working as preload percentage.
6. a kind of method that improves the CDMA mobile communication systems capacity according to claim 1 is characterized in that: also comprise by the priority orders of predefined data service and dynamically adjusting.
7. a kind of method that improves the CDMA mobile communication systems capacity according to claim 6, it is characterized in that described priority orders by predefined data service dynamically adjusts, further comprise: the transmission rate of at first adjusting the minimum data service of priority; During still more than or equal to described predetermined system load-threshold (Th), adjust the transmission rate of the data service of next priority again, in the present load of statistics until the transmission rate of the highest data service of priority.
8. a kind of method that improves the CDMA mobile communication systems capacity according to claim 1 is characterized in that: also comprise in the transmission rate that reduces data service and reduce its transmitting power; With, when reverting to value before adjusting, the transmission rate with adjusted data service also comprises its transmitting power of increase.
9. according to claim 1 or 8 described a kind of methods that improve the CDMA mobile communication systems capacity, it is characterized in that: the transmission rate of described reduction data service and transmitting power thereof, revert to the value before adjusting and increase its transmitting power with transmission rate adjusted data service, it is front end signal processing subsystem power controlling control subsystem by the user of mobile station end, with data-message distribution module, finish by load control module in the control resource management module and power controlling control subsystem by base station end and base station controller thereof.
10. a kind of method that improves the CDMA mobile communication systems capacity according to claim 9 is characterized in that further comprising:
A. measurement report is measured and generated to the user of mobile station end to the signal quality that receives, and this measurement report sends to the base station with the reverse feedback link signal;
B. base station controller is handled and sent in the base station to the reverse signal that receives;
C. estimate the information bit energy of this user of mobile station signal and the ratio (Eb/Io) of disturbance spectrum density by the baseband processing unit in the base station controller, and compare with (Eb/Io) threshold value of setting, determine power control ratio specially for 0 or 1, and send it to this user of mobile station;
D. the information detection system load constantly that reports according to the base station of base station controller, and compare with the system load thresholding of setting (Th), in the system load that detects during greater than this thresholding, press R '=2 * (1-Q) * R algorithm and adjust the transmission rate of current data business, R is the transmission rate of former data service, and Q is for working as preload percentage;
E. during less than the system load thresholding (Th) set, make the transmission rate R ' of current data business keep or revert to the transmission rate R of former data service in the system load that detects;
F. user of mobile station increases or the reduction transmitting power according to the power control bit that is received is corresponding.
CNB011158050A 2001-04-30 2001-04-30 Capacity increasing method for CDMA mobile communication system Expired - Fee Related CN1146173C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348235A (en) * 2010-08-03 2012-02-08 中兴通讯股份有限公司 Method and base transceiver station for controlling utilization rate of central processing unit (CPU)
CN108271219A (en) * 2016-12-30 2018-07-10 中国移动通信集团上海有限公司 The control method and device of wireless network resource
WO2018214354A1 (en) * 2017-05-23 2018-11-29 上海斐讯数据通信技术有限公司 Method and apparatus for adjusting transmission rate
CN109756927A (en) * 2013-02-25 2019-05-14 苹果公司 Promote to coexist in the equipment between wireless communication technique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102348235A (en) * 2010-08-03 2012-02-08 中兴通讯股份有限公司 Method and base transceiver station for controlling utilization rate of central processing unit (CPU)
CN102348235B (en) * 2010-08-03 2015-06-10 中兴通讯股份有限公司 Method and base transceiver station for controlling utilization rate of central processing unit (CPU)
CN109756927A (en) * 2013-02-25 2019-05-14 苹果公司 Promote to coexist in the equipment between wireless communication technique
CN108271219A (en) * 2016-12-30 2018-07-10 中国移动通信集团上海有限公司 The control method and device of wireless network resource
CN108271219B (en) * 2016-12-30 2020-11-24 中国移动通信集团上海有限公司 Method and device for controlling wireless network resources
WO2018214354A1 (en) * 2017-05-23 2018-11-29 上海斐讯数据通信技术有限公司 Method and apparatus for adjusting transmission rate

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