CN101742587A - Cell updating method and user equipment for CELL_FACH state - Google Patents
Cell updating method and user equipment for CELL_FACH state Download PDFInfo
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- CN101742587A CN101742587A CN200810175350A CN200810175350A CN101742587A CN 101742587 A CN101742587 A CN 101742587A CN 200810175350 A CN200810175350 A CN 200810175350A CN 200810175350 A CN200810175350 A CN 200810175350A CN 101742587 A CN101742587 A CN 101742587A
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Abstract
The invention discloses a cell updating method and user equipment for a CELL_FACH state, wherein the method comprises the following steps that: the user equipment determines that signal intensity of a current cell is compared with a pre-obtained threshold before updating the cell; and when determining that the signal intensity of the current cell is more than or equal to the threshold, the user equipment sends a cell updating notification message to a base station of the current cell and updates the cell. The cell updating method and the user equipment can reduce the interference on a neighbour cell caused when the user equipment sends the cell updating notification message to a source base station.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of cell update method and subscriber equipment that is used for the CELL_FACH state.
Background technology
According to traditional cell forward access channel technology (CELL_FACH state), terminal is by Random Access Channel (Random Access Channel, abbreviate RACH as) the transmission upstream data, by forward access channel (Forward Access Channel abbreviates FACH as) downlink data receiving.Packet Random Access Channel (the PacketRandom Access Channel of RACH mapping, abbreviating PRACH as) resource is the common channel resources of sub-district, terminal is obtained by the physical accidental access procedure, the base station does not need the RACH resource is dispatched, and terminal embodies data priority control according to the ASC selection course; Auxiliary publish control physical channel (the Secondary Common Control PhysicalChannel of FACH mapping, abbreviate S-CCPCH as) also be the common channel resources of sub-district, the priority that is mapped to the data of FACH is controlled by radio network controller (Radio Network Controller, abbreviate RNC as) to carry out, the base station does not need the FACH resource is dispatched equally.
Under traditional CELL_FACH state, terminal is carried out cell reselection process, so-called sub-district gravity treatment is meant: terminal is independently to Primary Common Control Physical Channel (the PrimaryCommon Control Physical Channel of adjacent sub-district, abbreviate PCCPCH as) intensity measure, if satisfy the R criterion of sub-district gravity treatment, then terminal need not to report any metrical information or indication information to network, terminal is independently carried out the sub-district gravity treatment, after finishing gravity treatment, terminal is carried out cell updating course in new sub-district, after RNC receives the terminal cell update, change the route that data send and receive.After terminal satisfies the sub-district reselection criterion, need a period of time from performing cell reselection to the process of finishing the sub-district gravity treatment, carry out in the process of gravity treatment in terminal, terminal can't receive any data message in the cell-of-origin.
Strengthen enhancing dedicated channel (the Enhanced DedicatedChannel under the CELL_FACH state, abbreviate E-DCH as) resource and high-speed downlink shared channel (HighSpeed-Downlink Shared Channel, abbreviating HS-DSCH as) resource is by NodeB scheduling and control, and in the CELL_FACH enhanced situation, upstream data peak rate and downlink data peak rate will obviously promote, if terminal is still independently carried out the sub-district gravity treatment, and in the process of carrying out the sub-district gravity treatment, dispatch terminal the base station, in this case, the problem of the wasting of resources and loss of data can be more serious than traditional CELL_FACH state.
A kind of optimization process based on above problem is: by UE (subscriber equipment) notice NodeB (base station), NodeB thinks that behind the sub-district gravity treatment announcement information of receiving from UE UE will carry out then follow-up this UE that no longer dispatches of sub-district gravity treatment before the sub-district gravity treatment takes place.
But, because cell update usually occurs in the resident cell-of-origin signal variation of UE under the situation of adjacent cell signal grow, if when the resident cell-of-origin signal strength signal intensity of UE is very weak, force to send message informing NodeB, UE causes stronger interference not only can for adjacent sub-district, and expend a large amount of power consumptions, also be difficult to the correctness that guarantees that the cell-of-origin receives simultaneously.
Summary of the invention
The present invention aims to provide a kind of cell update method and subscriber equipment of the CELL_FACH of being used for state, and UE sends the problem that the cell update notification message can cause interference to adjacent sub-district to source base station when very weak with the signal strength signal intensity that solves current area in the correlation technique.
A kind of cell update method of the CELL_FACH of being used for state is provided according to an aspect of the present invention.
Cell update method according to the present invention comprises: before subscriber equipment is determined to carry out cell update, the signal strength signal intensity of current area and the threshold value that obtains are in advance compared; The signal strength signal intensity of determining current area is more than or equal to threshold value, and subscriber equipment sends the cell update notification message to the base station of current area, and carries out cell update.
Preferably, this method also comprises: subscriber equipment is determined the signal strength signal intensity of current area less than threshold value, does not then send the cell update notification message to the base station, directly carries out cell update.
Preferably, subscriber equipment obtains threshold value by system message or radio resource control information.
Preferably, radio resource control information comprises one of following message: message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, cell update acknowledgement message.
Preferably, the signal strength signal intensity of current area is determined according to the signal strength signal intensity of current area Primary Common Control Physical Channel.
Preferably, subscriber equipment sends the cell update notification message by enhanced uplink random access channel to the base station.
Preferably, the subscriber equipment enhanced uplink random access channel comprises to base station transmission cell update notification message: subscriber equipment sends the cell update notification message by the schedule information in the enhanced uplink random access channel to the base station.
According to a further aspect in the invention, also provide a kind of subscriber equipment.
Subscriber equipment according to the present invention comprises: acquisition module is used to obtain threshold value; Comparison module is used for before determining to carry out cell update, and the signal strength signal intensity and the threshold value of current area compared; Information sending module is under the situation of signal strength signal intensity more than or equal to threshold value of current area at the comparative result of comparison module, sends the cell update notification message to the base station of current area.
Preferably, acquisition module comprises: first acquisition module is used for obtaining threshold value by system message; Or second acquisition module, be used for obtaining threshold value by radio resource control information.
Preferably, radio resource control information comprises one of following message: message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, cell update acknowledgement message.
By means of technique scheme of the present invention, whether the signal strength signal intensity by judging the UE current area is greater than threshold value, and in judged result is that UE just sends the cell update notification message to NodeB under the situation that is, can reduce the strong jamming that adjacent sub-district is caused, and the power consumption of UE, saving power resource have been reduced.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the cell update method of the inventive method embodiment;
Fig. 2 is the preferred process scheme flow chart according to the cell update method of the inventive method embodiment;
Fig. 3 is the structured flowchart according to the subscriber equipment of apparatus of the present invention embodiment.
Embodiment
Functional overview
Main thought of the present invention is: UE is before carrying out cell update, at first the signal strength signal intensity with current area compares with the threshold value that obtains in advance, under the situation of signal strength signal intensity more than or equal to threshold value of current area, UE sends the cell update notification message to the NodeB of current area, and carries out cell update; Under the situation of signal strength signal intensity less than threshold value of current area, UE does not send the cell update notification message to the NodeB of current area and directly carries out cell update.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to the embodiment of the invention, provide a kind of cell update method that is used to strengthen the CELL_FACH state.
Fig. 1 is the flow chart of cell update method that is used to strengthen the CELL_FACH state according to the embodiment of the invention, need to prove, the step of describing in following method can be carried out in the computer system such as a set of computer-executable instructions, and, though figure 1 illustrates logical order, but in some cases, can carry out step shown or that describe with the order that is different from herein.As shown in Figure 1, this method comprises following processing:
Before step S102, subscriber equipment determine to carry out cell update, the signal strength signal intensity of current area and the threshold value that obtains are in advance compared;
Step S104, the signal strength signal intensity of determining current area is more than or equal to threshold value, and subscriber equipment sends the cell update notification message to the base station of current area, and carries out cell update.
Whether the technical scheme that provides by means of present embodiment, the signal strength signal intensity by judging the UE current area greater than threshold value, and is that UE just sends the cell update notification message to NodeB under the situation that is in judged result, can reduce the power consumption of UE.
Describe above-mentioned each details of handling below in detail.
(1) step S102
Under the CELL_FACH state that strengthens, UE at first obtains the cell update notification message and triggers threshold value, this threshold value triggers threshold value for the cell update notification message, UE can obtain threshold value by system message or radio resource control information, wherein, if UE gets this threshold value by radio resource control information, then radio resource control information can comprise one of following message: message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, the radio bearer release message, the transmission channel reconfiguration message, the physical channel reconfiguration message, the cell update acknowledgement message.
After UE obtains this threshold value, the signal strength signal intensity of current area and the threshold value that obtains are in advance compared.The signal strength signal intensity of current area is determined according to the signal strength signal intensity of sub-district PCCPCH.
(2) step S104
Based on above-mentioned processing, under the situation of signal strength signal intensity more than or equal to this threshold value of current area, UE sends the cell update notification message to the NodeB of current area, and carries out cell update;
Otherwise, if the signal strength signal intensity of current area less than this threshold value, UE does not send the cell update notification message to the NodeB of current area, directly carries out cell update.
After NodeB receives the cell update notification message, stop to dispatch this UE.
Wherein, UE sends the cell update notification message to NodeB can be by enhanced uplink random access channel (E-DCH Random Access Uplink Control Channel, abbreviate E-RUCCH as) carrying, and use special schedule information (SchedulingInformation abbreviates SI as) territory to represent.
According to the embodiment of the invention, E-RUCCH is made up of Scheduling Information and Radio Network Temporary Identifier (E-RNTI).The SI structure is as shown in table 1 in the traditional E-R UCCH frame:
Table 1
??SNPL | ??UPH | ??TEBS | ??HLBS | ??HLID |
??(5bits) | ??(5bits) | ??(5bits) | ??(4bits) | ??(4bits) |
Existing Scheduling Information accounts for 23bits altogether, comprise: SNPL (Servingand Neighbour Cell Pathloss, service and adjacent sub-district path loss), UPH (UE PowerHeadroom, the UE power headroom), TEBS (Total E-DCH Buffer Status, whole E-DCH buffer states), HLBS (Highest priority Logical channelBuffer Status, metadata cache state with logic channel of limit priority), HLID (Highest priority Logical channelID has the Logic Channel Identifier of limit priority).
Wherein, TEBS has represented in the whole E-DCH buffer memory how many data are arranged, and HLBS has represented in the logic channel E-DCH buffer memory of limit priority how many data are arranged, when TEBS was 0, HLBS also was necessary for 0.Be used for carrying cell update when notice redefining E-RUCCH, only need Scheduling Information is partly made an amendment, can be 0 and HLBS 0 represents that E-RUCCH is a kind of special E-RUCCH by TEBS is set, and TEBS and HLBS are at this moment only as a kind of indication information, as long as guarantee that former HLBS 4 bit in place are not 0 entirely.
For example, can be as shown in table 2 according to the special Scheduling Information structure of the embodiment of the invention:
Table 2
??SNPL | ??UPH | ??TEBS | ??HLBS | ??HLID |
Undefined | Undefined | ??00000 | ??0001 | Undefined |
??(5bits) | ??(5bits) | ??(5bits) | ??(4bits) | ??(4bits) |
Fig. 2 is the flow chart of preferred process scheme of cell update method that is used to strengthen the CELL_FACH state according to the embodiment of the invention, and as shown in Figure 2, this method comprises:
Step S202, UE judge that it is about to carry out cell update;
Step S204, judge current area PCCPCH power whether greater than/equal default thresholding: if, execution in step S206 then; Otherwise, execution in step S208 (above-mentioned steps S202-S204 is corresponding to the step S102 among Fig. 1);
Step S206, current area PCCPCH power greater than/equal default thresholding, UE sends E-RUCCH to NodeB, indication is about to carry out cell update;
Step S208, current area PCCPCH power are less than default thresholding, and UE directly carries out cell update (above-mentioned steps S206-S208 is corresponding to the step S104 among Fig. 1).
Pass through above preferred embodiment, at UE before NodeB sends the cell update notification message, increase and judge that whether the current area signal power is greater than the step of presetting thresholding, and in judged result is under the situation that is, just carry out the processing that sends the cell update notification message to NodeB, reduced interference, and reduced the power consumption of UE adjacent sub-district.
Device embodiment
According to the embodiment of the invention, a kind of subscriber equipment also is provided, this equipment can be used to the cell update method that is used to strengthen the CELL_FACH state of realizing that said method embodiment is provided.
Fig. 3 is the structured flowchart according to the subscriber equipment of the embodiment of the invention, and as shown in Figure 3, subscriber equipment according to the present invention comprises: acquisition module 10, comparison module 20 and information sending module 30, particularly:
Acquisition module 10 is used to obtain threshold value;
Comparison module 20 is connected to acquisition module 10, is used for before determining to carry out cell update, and the signal strength signal intensity and the threshold value of current area compared;
Information sending module 30 is connected to comparison module 20, and the comparative result that is used at comparison module is under the situation of signal strength signal intensity more than or equal to threshold value of current area, sends the cell update notification message to the base station of current area.
In specific implementation process, acquisition module 10 may further include: the first acquisition module (not shown) is used for obtaining threshold value by system message; The second acquisition module (not shown) is used for obtaining threshold value by radio resource control information.
Wherein, above-mentioned radio resource control information comprises one of following message: message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, cell update acknowledgement message.
In specific implementation process, the UE that provides according to the embodiment of the invention can finish the processing shown in Fig. 1 and Fig. 2 equally, thereby can reduce the power consumption of UE, and concrete processing procedure no longer is repeated in this description herein.
In sum, by means of technique scheme of the present invention, whether the signal strength signal intensity by judging the UE current area is greater than threshold value, and in judged result is that UE just sends the cell update notification message to NodeB under the situation that is, the power consumption of UE can be reduced, and interference can be reduced adjacent sub-district.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is used for the cell update method that cell forward access channel is the CELL_FACH state, it is characterized in that, comprising:
Before subscriber equipment is determined to carry out cell update, the signal strength signal intensity of current area and the threshold value that obtains are in advance compared;
The signal strength signal intensity of determining described current area is more than or equal to described threshold value, and described subscriber equipment sends the cell update notification message to the base station of described current area, and carries out cell update.
2. method according to claim 1 is characterized in that, also comprises:
Described subscriber equipment is determined the signal strength signal intensity of described current area less than described threshold value, does not then send the cell update notification message to described base station, directly carries out cell update.
3. method according to claim 1 and 2 is characterized in that described subscriber equipment obtains described threshold value by system message or radio resource control information.
4. method according to claim 3 is characterized in that, described radio resource control information comprises one of following message:
Message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, cell update acknowledgement message.
5. method according to claim 1 is characterized in that, the signal strength signal intensity of described current area is determined according to the signal strength signal intensity of described current area Primary Common Control Physical Channel.
6. method according to claim 1 is characterized in that, described subscriber equipment sends the cell update notification message to the base station of described current area and comprises:
Described subscriber equipment sends described cell update notification message by enhanced uplink random access channel to described base station.
7. method according to claim 6 is characterized in that, described subscriber equipment sends described cell update notification message by enhanced uplink random access channel to described base station and comprises:
Described subscriber equipment sends described cell update notification message by the schedule information in the described enhanced uplink random access channel to described base station.
8. a subscriber equipment is characterized in that, comprising:
Acquisition module is used to obtain threshold value;
Comparison module is used for before determining to carry out cell update, and the signal strength signal intensity and the described threshold value of current area compared;
Information sending module is under the situation of signal strength signal intensity more than or equal to described threshold value of described current area at the comparative result of described comparison module, sends the cell update notification message to the base station of described current area.
9. subscriber equipment according to claim 8 is characterized in that, described acquisition module comprises:
First acquisition module is used for obtaining described threshold value by system message; Or
Second acquisition module is used for obtaining described threshold value by radio resource control information.
10. subscriber equipment according to claim 9 is characterized in that, described radio resource control information comprises one of following message:
Message is set up in Radio Resource control, radio bearer is set up message, radio bearer reconfiguration message, radio bearer release message, transmission channel reconfiguration message, physical channel reconfiguration message, cell update acknowledgement message.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102413534A (en) * | 2010-09-26 | 2012-04-11 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
WO2013134981A1 (en) * | 2012-03-14 | 2013-09-19 | 中兴通讯股份有限公司 | Method and mobile terminal for selecting access channel |
CN105659666A (en) * | 2014-09-30 | 2016-06-08 | 华为技术有限公司 | Mobile terminal controlling method and mobile terminal |
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Family Cites Families (3)
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JP4299082B2 (en) * | 2002-10-18 | 2009-07-22 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile station, mobile communication system, and cell selection method |
CN100382655C (en) * | 2005-11-08 | 2008-04-16 | 华为技术有限公司 | Cell reselection processing method, terminal measuring method and user terminal |
CN100536602C (en) * | 2006-03-26 | 2009-09-02 | 华为技术有限公司 | User equipment paging method in long-term evolvement network and system thereof |
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2008
- 2008-11-06 CN CN200810175350A patent/CN101742587B/en not_active Expired - Fee Related
Cited By (9)
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CN102413534A (en) * | 2010-09-26 | 2012-04-11 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
CN102413534B (en) * | 2010-09-26 | 2014-09-10 | 大唐移动通信设备有限公司 | Cell switching method, system and equipment |
WO2013134981A1 (en) * | 2012-03-14 | 2013-09-19 | 中兴通讯股份有限公司 | Method and mobile terminal for selecting access channel |
CN105659666A (en) * | 2014-09-30 | 2016-06-08 | 华为技术有限公司 | Mobile terminal controlling method and mobile terminal |
US10142904B2 (en) | 2014-09-30 | 2018-11-27 | Huawei Technologies Co., Ltd. | Mobile terminal control method and mobile terminal |
US10499298B2 (en) | 2014-09-30 | 2019-12-03 | Huawei Technologies Co., Ltd. | Mobile terminal control method and mobile terminal |
US10805853B2 (en) | 2014-09-30 | 2020-10-13 | Huawei Technologies Co., Ltd. | Mobile terminal control method and mobile terminal |
CN109413713A (en) * | 2017-08-18 | 2019-03-01 | 中国移动通信有限公司研究院 | A kind of data reporting method, data receiver method, terminal and server |
CN109413713B (en) * | 2017-08-18 | 2021-01-15 | 中国移动通信有限公司研究院 | Data reporting method, data receiving method, terminal and server |
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