CN101917223B - Method for controlling activation time of wireless resources and user equipment - Google Patents
Method for controlling activation time of wireless resources and user equipment Download PDFInfo
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- CN101917223B CN101917223B CN201010179671.0A CN201010179671A CN101917223B CN 101917223 B CN101917223 B CN 101917223B CN 201010179671 A CN201010179671 A CN 201010179671A CN 101917223 B CN101917223 B CN 101917223B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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Abstract
The invention provides a method for controlling the activation time of wireless resources and user equipment. The method comprises the following steps of: receiving, wherein the user equipment receives a resource allocation message transmitted by a network side; and controlling, wherein the activation time carried in the resource allocation message is processed, and then the resource allocation message is transferred to a physical layer on the basis of processing results. In the method, by introducing an adaptation layer, only one set of resources are required to be reserved in the physical layer, so that the expenses of memories of the physical layer are greatly saved.
Description
Technical field
The present invention relates to 3-G (Generation Three mobile communication system) (3G), more specifically, relate to a kind of control method and subscriber equipment of activationary time of Radio Resource.
Background technology
In 3-G (Generation Three mobile communication system), universal mobile telecommunications system (UMTS) is one wherein, its network configuration is made up of core net (CN), UMTS Terrestrial radio access network (UTRAN) and subscriber equipment (UE, User Equipment).Interface between UTRAN and UE is Uu mouth, namely wave point, and over that interface, protocol stack is physical layer (layer 1), data link layer (layer 2) and network layer (layer 3) by its function and task division.Wireless heterogeneous networks (RRC) sublayer is positioned at the lowermost layer of layer 3, belongs to Access Layer, mainly provides the functions such as the control and management of Radio Resource.
The Radio Resource that in 3G, physical layer uses is very many, mainly include up and downlink coding aggregate channel information (Coded Composite Transport Channel, be called for short CcTrCH) and power control information, and these Radio Resources are all with activationary time, this activationary time is a frame number of specifying.When namely having arrived this frame number, physical layer will be enabled new Radio Resource and be stopped using old Radio Resource.This just require that physical layer needs preservation 2 to overlap resource distribution, this is for the physical layer operated in above DSP (digital signal processor), the expense of internal memory is very huge, and the internal memory of DSP itself is very limited, the buffer memory of Radio Resource is increased to the difficulty of functional development on DSP, and make physical layer be not easy stable and safeguard.And simultaneously, the RRC of protocol stack operates in again on ARM (Advanced RISCMachines: senior risc microcontroller), cannot respond in time the Interruption on DSP, so when the control of activationary time realizes on RRC be cannot accomplish very accurate, this is insupportable for 3G system, can affect stability and the reliability of UE.
Summary of the invention
In view of the above problems, the invention provides a kind of control method and subscriber equipment of activationary time of Radio Resource, to save the memory cost of physical layer.
In order to solve the problems of the technologies described above, the invention provides the control method of the activationary time in a kind of Radio Resource, comprising:
Receiving step, subscriber equipment receives the resource distribution message that network side issues;
Rate-determining steps, processes the activationary time carried in described resource distribution message, transmits described resource distribution message based on result to physical layer.
Further, above-mentioned control method also has feature below: described rate-determining steps comprises:
Registration process step, judges that whether described activationary time is the integral multiple of the Transmission Time Interval that resource distribution message is carried, if not, then adjust activationary time, make the boundary alignment of activationary time and described Transmission Time Interval;
Pass-along message step, transmits described resource distribution message based on the activationary time after registration process to physical layer.
Further, above-mentioned control method also has feature below:
In described registration process step, if preserve Transmission Time Interval information in subscriber equipment, then select maximum Transmission Time Interval to adjust activationary time in the Transmission Time Interval information that the Transmission Time Interval Information and Resource configuration messages preserved from subscriber equipment carries.
Further, above-mentioned control method also has feature below: described rate-determining steps comprises:
Judge abnormal step, judge that the frame number of the activationary time that described resource distribution message is carried is whether before current frame number, or judge that the activationary time that described resource distribution message is carried and present frame are at a distance of whether exceeding predetermined frame, if, then be judged as exception, then perform pass-along message step;
Pass-along message step, transmits described resource distribution message based on frame that is immediate with present frame and the boundary alignment of the Transmission Time Interval carried with resource distribution message to physical layer.
Further, above-mentioned control method also has feature below:
If preserve Transmission Time Interval information in subscriber equipment, then in described pass-along message step, the frame based on the boundary alignment of Transmission Time Interval maximum among the Transmission Time Interval that and the Transmission Time Interval carried with resource distribution message and subscriber equipment immediate with present frame are preserved transmits described resource distribution message to physical layer.
In order to solve the problem, present invention also offers a kind of subscriber equipment, there is the wave point mutual with universal mobile telecommunications system land radio access web, on described wave point, protocol stack is physical layer, data link layer and network layer by its function and task division, has wireless heterogeneous networks sublayer, wherein in the lowermost layer of network layer, one adaptation layer is set between described physical layer and data link layer
Wireless heterogeneous networks sublayer, for control and management Radio Resource, sends to described adaptation layer by the resource distribution message received;
Adaptation layer, after receiving described resource distribution message, processes the activationary time that resource distribution message is carried, and transmits described resource distribution message based on result to physical layer.
Further, above-mentioned subscriber equipment also has feature below:
Described adaptation layer, specifically for judging that whether described activationary time is the integral multiple of the Transmission Time Interval that resource distribution message is carried, if not, then adjust activationary time, make the boundary alignment of activationary time and described Transmission Time Interval, then transmit described resource distribution message based on the activationary time after registration process to physical layer.
Further, above-mentioned subscriber equipment also has feature below:
Described adaptation layer, if preserve Transmission Time Interval information, then also for selecting maximum Transmission Time Interval to adjust activationary time between the Transmission Time Interval Information and Resource configuration messages Transmission Time Interval information of carrying of preserving.
Further, above-mentioned subscriber equipment also has feature below:
Described adaptation layer, specifically for judging that the frame number of the activationary time that described resource distribution message is carried is whether before current frame number, or judge that the activationary time that described resource distribution message is carried and present frame are at a distance of whether exceeding predetermined frame, if, then be judged as exception, then transmit described resource distribution message based on frame that is immediate with present frame and the boundary alignment of the Transmission Time Interval carried with resource distribution message to physical layer.
Further, above-mentioned subscriber equipment also has feature below:
Described adaptation layer, if preserve Transmission Time Interval information, then be judged as abnormal after, the frame for the boundary alignment of Transmission Time Interval maximum among the Transmission Time Interval preserved based on and the Transmission Time Interval carried with resource distribution message and subscriber equipment immediate with present frame transmits described resource distribution message to physical layer.
Compared with prior art comparatively, all be placed on physical layer to the control of Radio Resource activationary time in existing realization to realize, physical layer needs the new and old 2 cover resources of buffer memory, and the present invention is by introducing adaptation layer, as long as make physical layer retain 1 cover resource, greatly save the memory cost of physical layer; Simultaneously complete by adaptation layer the work that TTI (Transmission Time Interval) aligns, physical layer does not need again to carry out TTI alignment, also reduce the complexity that physical layer realizes, therefore, the present invention can alleviate more greatly the burden of physical layer, improve the stability of physical layer, significant to the management of Radio Resource.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of subscriber equipment of the present invention;
Fig. 2 is the flow chart of the control method of activationary time in Radio Resource of the present invention;
Fig. 3 is the flow chart of the control method embodiment of activationary time in Radio Resource of the present invention.
Embodiment
Main thought of the present invention is, by introducing adaptation layer between physical layer and data link layer, solve the problem that this is faced a difficult choice, the limited internal memory that can not take DSP on the one hand carrys out buffer memory Radio Resource, on the other hand, because adaptation layer operates in the bottom of protocol stack, there is frame number information and by field drives interrupts, activationary time can be controlled easily.
In order to reduce the complexity of physical layer process, and save the limited memory space of physical layer, the present invention introduces adaptation layer in the wave point of subscriber equipment, as shown in Figure 1.Adaptation layer is an intermediate layer between physical layer and data link layer.Adaptation layer is the same with protocol stack, operate on ARM, be responsible for the forwarding of interaction message and the accurate control of activationary time between the physical layer on protocol stack and DSP, so adaptation layer can be allowed to be responsible for controlling the activationary time in resource distribution message, namely only reach activationary time and just resource distribution message is handed down to physical layer, physical layer can be made so not need to preserve new and old two cover configurations, and the abnormal flow process before activationary time is arrived, the unwanted configuration messages of buffer memory can be deleted, and not need to be handed down to physical layer again.
During according to the Cctrch that 25.331 protocol configuration are new, activationary time should according to TTI (TransmissionTime Interval, Transmission Time Interval) boundary alignment, be namely when activating between when not being the integral multiple of TTI, need to adjust activationary time, make it arrive the border of TTI.Because adaptation layer will complete the control to the activationary time in physical layer resources configuration messages, so the border of TTI naturally will be taken into account by adaptation layer.Meanwhile, because network side may, by not identical with descending TTI for the up TTI of configuration, in this case, need to get a TTI used as alignment larger in up TTI and descending TTI.
Be transformed into from FACH (forward access channel) state in the layoutprocedure of DCH (dedicated transmission channel) state, except will considering the TTI in new DPCH (DPCH), also will considering the TTI of FACH channel.And be switched in the process of 3G at 2G, be that IDLE state is directly switch to DCH state for adaptation layer, now there is no old TTI, so adaptation layer, when realizing TTI alignment function, needs to choose a maximum TTI from new and old TTI and aligns.
Adaptation layer, when control activationary time, considers the programming dispatching of physical layer, needs 3 frames in advance that resource distribution message is handed down to physical layer.Due to the existence of this lead, may occur the phenomenon that the activationary time frame number that calculates is more late than current frame number, this is a kind of anomaly.Such as network side specify the 12nd frame activate, through calculating, the activationary time frame number drawn is the 9th frame, and if current frame number has been the 10th frame, represent activationary time miss.Meanwhile, due to CFN (initial connection frame number) with 256 for loop cycle, so when the absolute value of difference is larger when activating and between current frame number, also a kind of anomaly should be used as.
Adaptation layer needs to do a protection for above-mentioned two kinds of anomalies, otherwise can cause the protection timer expiry of network side and the link of release new, and physical layer cannot be set up synchronously on the new channel.Adaptation layer is when realization, if interpretation go out activationary time frame number missed or activationary time exceedes predetermined frame apart with present frame time, such as 128 frames, just no longer wait for activationary time, but directly at frame that is immediate with present frame and the boundary alignment of the Transmission Time Interval carried with resource distribution message, resource distribution message is issued to physical layer, and print unexpected message for debugging.
If store Transmission Time Interval information in subscriber equipment, then adaptation layer is after judgement is abnormal, and the frame based on the boundary alignment of Transmission Time Interval maximum among the Transmission Time Interval that and the Transmission Time Interval carried with resource distribution message and subscriber equipment immediate with present frame are preserved transmits described resource distribution message to physical layer.
Like this, controlled the activationary time of Radio Resource by adaptation layer, both saved the memory source of DSP preciousness, also improve the accuracy that activationary time is controlled simultaneously, ensure that the stability that 3G terminal runs.
Fig. 2 is the flow chart of the control method of activationary time in Radio Resource of the present invention, as shown in the figure, can comprise step below:
S10, UE receive the resource distribution message that network side issues;
Wherein, activationary time information and TTI information is carried in this resource distribution message.
Particularly, the resource distribution message received is sent to adaptation layer by RRC sublayer.
S20, UE process the activationary time that resource distribution message is carried, and transmit described resource distribution message according to result to physical layer.
In one example, adaptation layer judges that whether the activationary time that carries in resource distribution message is the integral multiple of the TTI that resource distribution message is carried, if not, then adjust activationary time, make activationary time arrive the border of described TTI, then transmit described resource distribution message according to the activationary time after adjustment to physical layer.
In another example, if preserve TTI information in adaptation layer, then select maximum TTI to adjust activationary time between the TTI information that the TTI Information and Resource configuration messages preserved from adaptation layer carries.
In the ordinary course of things, if adaptation layer judges that the frame number of the activationary time that resource distribution message is carried exceedes predetermined frame apart (such as before current frame number or with current frame number, 128 frames), then direct at present frame by described resource distribution Message Transmission to physical layer.
In order to make the object, technical solutions and advantages of the present invention clearer, save as example with the radio bearer resources of reprovision in CELL-DCH (single user state of cell-level) to the radio bearer reconfiguration course of CELL-DCH and introduce flow process of the present invention, as Fig. 3, performing step is as follows:
Step 110:UE have received the radio bearer reconfiguration message of network side in CELL-DCH state, the radio bearer resources containing reprovision in message, and with activationary time, message integrity check is by rear execution step 120.
The Radio Resource message received is assembled by step 120:RRC sublayer, and fills in activationary time, then sends to adaptation layer afterwards, then performs step 130.
Step 130: adaptation layer according to the TTI information contained inside the Radio Resource message received, and takes out the TTI information of the old Radio Resource that last time preserves, and therefrom chooses maximum TTI, then holds step 140.
Step 140: activationary time aligns according to maximum TTI by adaptation layer, and judge that whether activationary time is legal, the frame number of activationary time is before the frame number of present frame, or the frame number of activationary time and the frame number of present frame are within such as 128 frames, namely can be considered that activationary time is legal, if legal, perform step 150; If illegal, think and activate immediately, then perform step 180.
Step 150: the activationary time after record alignment, and every frame compares activationary time, judges whether to arrive activationary time, if arrive, then performs step 160; If do not arrive, then repeated execution of steps 150.
Step 160: radio bearer reconfiguration message is passed to physical layer, makes physical layer enable new Radio Resource immediately, then performs step 170.
Step 170: the TTI information that adaptation layer utilizes new TTI information updating old, use for next time, the control procedure of activationary time terminates.
Step 180, immediate with present frame and transmit described resource distribution message with the frame of the boundary alignment of maximum TTI to physical layer.
Activationary time control procedure for the Radio Resource message of other types is also similar, is no longer described in detail here.
Should be understood that; concerning the technical staff in field, the technology of the present invention place; can carry out corresponding equivalent change according to technical scheme of the present invention and design thereof or replace, and all these change or replace, and all should belong to the protection range of claims of the present invention.
Claims (10)
1. a control method for the activationary time in Radio Resource, comprising:
Receiving step, subscriber equipment receives the resource distribution message that network side issues;
Wherein, described subscriber equipment has the wave point mutual with universal mobile telecommunications system land radio access web, and on described wave point, protocol stack is physical layer, data link layer and network layer by its function and task division;
Rate-determining steps, the adaptation layer arranged between described physical layer and data link layer, processes the activationary time carried in described resource distribution message, and based on result, the activationary time after arriving process transmits described resource distribution message to physical layer.
2. control method as claimed in claim 1, is characterized in that: described rate-determining steps comprises:
Registration process step, judges that whether described activationary time is the integral multiple of the Transmission Time Interval that resource distribution message is carried, if not, then adjust activationary time, make the boundary alignment of activationary time and described Transmission Time Interval;
Pass-along message step, transmits described resource distribution message based on the activationary time after registration process to physical layer.
3. control method as claimed in claim 2, is characterized in that:
In described registration process step, if preserve Transmission Time Interval information in subscriber equipment, then select maximum Transmission Time Interval to adjust activationary time in the Transmission Time Interval information that the Transmission Time Interval Information and Resource configuration messages preserved from subscriber equipment carries.
4. control method as claimed in claim 1, is characterized in that: described rate-determining steps comprises:
Judge abnormal step, judge that the frame number of the activationary time that described resource distribution message is carried is whether before current frame number, or judge that the activationary time that described resource distribution message is carried and present frame are at a distance of whether exceeding predetermined frame, if, then be judged as exception, then perform pass-along message step;
Pass-along message step, transmits described resource distribution message based on frame that is immediate with present frame and the boundary alignment of the Transmission Time Interval carried with resource distribution message to physical layer.
5. control method as claimed in claim 4, is characterized in that:
If preserve Transmission Time Interval information in subscriber equipment, then in described pass-along message step, the frame based on the boundary alignment of Transmission Time Interval maximum among the Transmission Time Interval that and the Transmission Time Interval carried with resource distribution message and subscriber equipment immediate with present frame are preserved transmits described resource distribution message to physical layer.
6. a subscriber equipment, there is the wave point mutual with universal mobile telecommunications system land radio access web, on described wave point, protocol stack is physical layer, data link layer and network layer by its function and task division, in the lowermost layer of network layer, there is wireless heterogeneous networks sublayer, it is characterized in that, an adaptation layer is set between described physical layer and data link layer
Wireless heterogeneous networks sublayer, for control and management Radio Resource, sends to described adaptation layer by the resource distribution message received;
Adaptation layer, after receiving described resource distribution message, processes the activationary time that resource distribution message is carried, and based on result, the activationary time after arriving process transmits described resource distribution message to physical layer.
7. subscriber equipment as claimed in claim 6: it is characterized in that,
Described adaptation layer, specifically for judging that whether described activationary time is the integral multiple of the Transmission Time Interval that resource distribution message is carried, if not, then adjust activationary time, make the boundary alignment of activationary time and described Transmission Time Interval, then transmit described resource distribution message based on the activationary time after registration process to physical layer.
8. subscriber equipment as claimed in claim 7: it is characterized in that,
Described adaptation layer, if preserve Transmission Time Interval information, then also for selecting maximum Transmission Time Interval to adjust activationary time between the Transmission Time Interval Information and Resource configuration messages Transmission Time Interval information of carrying of preserving.
9. subscriber equipment as claimed in claim 6: it is characterized in that,
Described adaptation layer, specifically for judging that the frame number of the activationary time that described resource distribution message is carried is whether before current frame number, or judge that the activationary time that described resource distribution message is carried and present frame are at a distance of whether exceeding predetermined frame, if, then be judged as exception, then transmit described resource distribution message based on frame that is immediate with present frame and the boundary alignment of the Transmission Time Interval carried with resource distribution message to physical layer.
10. subscriber equipment as claimed in claim 9: it is characterized in that,
Described adaptation layer, if preserve Transmission Time Interval information, then be judged as abnormal after, the frame for the boundary alignment of Transmission Time Interval maximum among the Transmission Time Interval preserved based on and the Transmission Time Interval carried with resource distribution message and subscriber equipment immediate with present frame transmits described resource distribution message to physical layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010179671.0A CN101917223B (en) | 2010-05-20 | 2010-05-20 | Method for controlling activation time of wireless resources and user equipment |
| PCT/CN2010/080021 WO2011143911A1 (en) | 2010-05-20 | 2010-12-20 | Method for controlling activation time of radio resource and user equipment thereof |
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| CN201010179671.0A CN101917223B (en) | 2010-05-20 | 2010-05-20 | Method for controlling activation time of wireless resources and user equipment |
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| CN101917223A CN101917223A (en) | 2010-12-15 |
| CN101917223B true CN101917223B (en) | 2015-06-03 |
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| CN102573073B (en) * | 2011-01-04 | 2015-01-28 | 中兴通讯股份有限公司 | Resource allocation method and system for physical layer of terminal |
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| WO2011143911A1 (en) | 2011-11-24 |
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