CN101583162B - Configuration method, device and base station for uplink signaling - Google Patents
Configuration method, device and base station for uplink signaling Download PDFInfo
- Publication number
- CN101583162B CN101583162B CN2008101067658A CN200810106765A CN101583162B CN 101583162 B CN101583162 B CN 101583162B CN 2008101067658 A CN2008101067658 A CN 2008101067658A CN 200810106765 A CN200810106765 A CN 200810106765A CN 101583162 B CN101583162 B CN 101583162B
- Authority
- CN
- China
- Prior art keywords
- uplink
- frame
- sub
- resource
- configuration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000011664 signaling Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 abstract description 2
- 230000005059 dormancy Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a configuration method, a device and a base station for an uplink signaling, and belongs to the technical field of communication. The configuration method comprises the following steps: selecting an uplink subframe in at least two continuous uplink subframes; and configuring all uplink signaling resources for a single terminal on the selected uplink subframe. Through concentratively sending an uplink signaling on one uplink subframe by the terminal, when other uplink subframes have no uplink data, the terminal can enter a dormancy state so as to achieve the aim that theterminal saves electricity, and simultaneously uplink signaling resources on PUCCH are uniformly distributed in the at least two uplink subframes so as to reduce the inter-cell interference, and optimize system performance.
Description
Technical field
The present invention relates to communication technical field, relate in particular to up signaling configuration method, device and base station in a kind of LTE of being used for (Long Term Evolution, Long Term Evolution) TDD (Time Division Duplexing, TDD mode) system.
Background technology
In the LTE system, can the transmission direction of terminal to base station be called up direction.Also can transmit up signaling the upstream data that on up direction, sends except the terminal; Wherein this up signaling comprises CQI (Channel Quality Indicator; The channel quality indication) feedback signaling and SR (SchedulingRequest, dispatch request) signaling.
What the sending method of existing up signaling adopted is; When upstream data will be sent in the terminal; The CQI feedback signaling can be gone up and upstream data sends together at PUSCH (Physical Uplink Share Channel, Physical Uplink Shared Channel), and when the terminal does not have upstream data to send; The CQI feedback signaling can be at PUCCH (Physical Uplink Control Channel; Physical Uplink Control Channel) go up transmission, the PUCCH resource that the CQI feedback is sent at the terminal is periodically disposed by the base station, is called periodically CQI feedback signaling.
When upstream data will be sent in the terminal, but but do not have the upstream data resource time spent, need to send dispatch request signaling base station, uplink scheduling can be carried out according to this dispatch request signaling in the base station, the dispatch request signaling is sent to the base station in the terminal has following two kinds of situation:
1) when the specific schedule request resource, the specific schedule request resource is positioned at PUCCH, and running time-frequency resource is by base station configuration;
2) when not having the specific schedule request resource, the terminal is sent dispatch request through random access procedure with the mode of competition.
In realizing process of the present invention; Find to exist at least in the prior art following problem: if on different sub-frame of uplink, dispose different up signal resources respectively; As reporting resource, in subframe 2 configuration SR resources, when two up signalings all need be sent at subframe 1 configuration CQI; Then must all work at two sub-frame of uplink in the terminal, make that terminal power consumption is big.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of up signaling configuration method, device and base station, concentrates on a sub-frame of uplink through the terminal and sends up signaling, can reach single terminal purpose of power saving.
In order to achieve the above object, embodiments of the invention provide a kind of up signaling configuration method, are used at least two continuous sub-frame of uplink collocating uplink signal resources, and said method comprises:
In said two continuous sub-frame of uplink, select a sub-frame of uplink at least;
Calculate the required said up signal resource in single terminal; On said at least two continuous sub-frame of uplink, search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value then, all said up signal resources at the said single terminal of configuration on a said sub-frame of uplink less than predetermined value.
Preferably, said method also comprises: the said up signal resource at least two terminals is configured on different said two continuous sub-frame of uplink at least.
Preferably, said up signal resource comprises frequency resource and/or sign indicating number resource.
Embodiments of the invention also provide a kind of up signaling configuration device, are used at least two continuous sub-frame of uplink collocating uplink signal resources, and said inking device comprises:
Select module, be used for selecting a sub-frame of uplink at said at least two continuous sub-frame of uplink;
First configuration module comprises: computing unit is used to calculate the said up signal resource at single terminal; Dispensing unit; Be used at said at least two continuous sub-frame of uplink; Search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value, all said up signal resources at the single terminal of configuration on a said sub-frame of uplink less than predetermined value.
Preferably, said inking device also comprises: second configuration module, be used for the said up signal resource configuration at least two terminals different at said at least two continuous sub-frame of uplink.
Embodiments of the invention also provide a kind of base station, are used for comprising at least two continuous sub-frame of uplink collocating uplink signal resources:
Select module, be used for selecting a sub-frame of uplink at said at least two continuous sub-frame of uplink;
First configuration module comprises: computing unit is used to calculate the said up signal resource at single terminal; Dispensing unit; Be used at said at least two continuous sub-frame of uplink; Search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value, all said up signal resources at the single terminal of configuration on a said sub-frame of uplink less than predetermined value.
Preferably, said base station also comprises: second configuration module, be used for the said up signal resource configuration at least two terminals different at said at least two continuous sub-frame of uplink.
A technical scheme in the technique scheme has following beneficial effect: concentrate on a sub-frame of uplink through the terminal and send up signaling; If other sub-frame of uplink do not have upstream data; The terminal then can get into resting state; Thereby the incoming terminal purpose of power saving, simultaneously for there being at least two terminals to send the scene of up signaling in the system, can be through the up signaling bear resource on the uniform distribution PUCCH at least two sub-frame of uplink; Reduced the interference of minizone, thus optimization of system performance.
Description of drawings
Fig. 1 is the frame structure sketch map of existing LTE TDD system;
Fig. 2 is up signal resource configuration flow figure in the embodiments of the invention;
Fig. 3 is the method flow diagram of the up signal resource of single terminal configuration for base station in the embodiments of the invention;
Fig. 4 is the apparatus structure block diagram of up signal resource configuration in the embodiments of the invention.
Embodiment
In an embodiment of the present invention, when at least two continuous sub-frame of uplink, up signaling is only sent on a sub-frame of uplink therein in the single terminal of base station configuration, thereby can save the terminal electric energy.
In order to make those skilled in the art better understand technical scheme of the present invention, embodiments of the invention are further specified below in conjunction with accompanying drawing and execution mode.
Referring to Fig. 1, be the frame structure sketch map of existing LTE TDD system, illustrate that in the drawings the ascending-descending subframes ratio is the configuration of 3UL (up): 1DL (descending).The LTE system also has other ascending-descending subframes configurations according to the difference of ascending-descending subframes transfer point.Subframe (subframe) #2～Subframe#4 is 3 continuous sub-frame of uplink.
As shown in Figure 2, be the flow chart of up signal resource configuration in the embodiments of the invention, the concrete steps of this method are following:
Whether step 201, detection have at least two continuous sub-frame of uplink, and execution in step 202 then;
Step 202, in detected two continuous sub-frame of uplink, select a sub-frame of uplink at least; Execution in step 203 then;
In step 201～202, because frame structure all is pre-configured, the base station knows that which subframe is continuous sub-frame of uplink; For example in the situation of 3UL:1DL, base station and terminal know that all subframe 2～4,6～9 is 3 continuous sub-frame of uplink, therefore; If when detecting above-mentioned continuous sub-frame of uplink, just in this continuous sub-frame of uplink, select a sub-frame of uplink, can be according to sub-frame of uplink of pre-defined rule selection from this continuous sub-frame of uplink; This pre-defined rule can be set to select according to the order of continuous subframes, for example can choose capable subframe 2 earlier, chooses capable subframe 3 again; Choose capable subframe 4 at last, also can select a sub-frame of uplink arbitrarily certainly.
Step 203, on a selected sub-frame of uplink, dispose all up signal resources in single terminal.This up signal resource comprises: frequency resource and/or sign indicating number resource.
Just with all frequency resources and/or the sign indicating number resource distribution on a sub-frame of uplink at single terminal.
Through step 201～203, when at least two continuous sub-frame of uplink, the base station only is chosen in the up signal resource that is configured on one of them sub-frame of uplink on the PUCCH, and different up signal resources disposes on same sub-frame of uplink.
When at least two continuous sub-frame of uplink; Because the CQI value of the descending sub frame before a plurality of continuous sub-frame of uplink can only be measured in the terminal; Have only a CQI value to report this moment; Therefore though have a plurality of continuous sub-frame of uplink to use, the terminal only needs therein that a sub-frame of uplink reports this CQI value.Equally, the transmission of dispatch request signaling should not be too frequent, before obtaining responding, do not need to send continuously the dispatch request signaling, therefore, when at least two continuous sub-frame of uplink are arranged, only needs to send the dispatch request signaling on a sub-frame of uplink therein.
Because when at least two continuous sub-frame of uplink are arranged; Various up signalings all only need to send on a sub-frame of uplink therein; Therefore the terminal does not need work when having up signaling and data to send; Just this terminal can get into resting state, thereby can reach the terminal purpose of power saving.
In step 202, can adopt method shown in Figure 3 is the up signal resource of terminal configuration, and the concrete steps of this method are following:
Step 301, the required up signal resource in the single terminal of calculating; Execution in step 302 then;
No matter CQI and SR are sending on one sub-frame or at least two sub-frame, sending, the resource that takies separately all is the same.Concerning certain terminal, can confirm that its required stock number is A according to this terminal CQI feedback kind, if SR resource requirement amount is B, then the required up signal resource in this terminal is A+B.
Step 302, at least two continuous sub-frame of uplink, search the sub-frame of uplink of PUCCH resource occupation value less than predetermined value, on this sub-frame of uplink the configuration single terminal all up signal resources.
In continuous several sub-frame of uplink in selected or designated frame, can select the minimum sub-frame of uplink of PUCCH resource occupation value, promptly the lightest subframe of load is carried out up signal resource configuration.Equally also can adopt other to select the method for sub-frame of uplink, for example also a threshold values can be set in advance, select the sub-frame of uplink of PUCCH resource occupation less than reservation threshold.
After execution of step 202, all to send for the up signaling that prevents all users in the sub-district at same sub-frame of uplink, the method for present embodiment also can comprise:
Step 203, the up signal resource at least two terminals evenly is configured on two different continuous sub-frame of uplink at least.Thereby the up signal resource that these at least two continuous sub-frame of uplink are taken can evenly distribute.
Just; On PUCCH, send up signal resource through at least two terminals of base station configuration, the signal resource at these at least two terminals is evenly distributed on the different sub-frame of uplink, for example; After execution of step 202; The up signal resource of base station 1 is configured on the subframe 1, and the up signal resource with base station 2 also is configured on the subframe 1 simultaneously, can cause interference when all on same sub-frame of uplink, sending owing to above-mentioned a plurality of user uplink signalings; So through execution in step 203; The up signal resource of base station 2 is distributed on subframe 2 or other subframes,, can the signal resource at least two terminals be distributed on the different sub-frame of uplink uniformly in order to effectively reduce interference.
When having at least two terminals need send up signaling; In order to reduce presence of intercell interference; Reach better system performance, can this up signal resource is evenly distributed on the different sub-frame of uplink through the up signal resource at least two terminals of base station configuration.
Embodiments of the invention also provide a kind of device that is used to cooperate the said method of the embodiment of the invention, describe below in conjunction with Fig. 4.What need at first explanation in addition is; Because following embodiment is for realizing said method embodiment; So the module in this device all is to establish in order to realize each step in the said method; But embodiments of the invention are not limited to following embodiment, and any device of said method of realizing all should be contained in protection scope of the present invention.
Be illustrated in figure 4 as; The structured flowchart of up signal resource inking device in the embodiments of the invention; This device can be used for being at least two terminals collocating uplink signal resource at least two continuous sub-frame of uplink; Wherein up signal resource comprises frequency resource and sign indicating number resource, by knowing that this device comprises among the figure:
Select module, be used for selecting a sub-frame of uplink at least two continuous sub-frame of uplink;
First configuration module is used for disposing all up signal resources at single terminal at a selected sub-frame of uplink.
In another embodiment of the present invention, this device also comprises:
Detection module is used to detect whether at least two continuous sub-frame of uplink are arranged;
In another embodiment of the present invention, this inking device also comprises: second configuration module is used for the up signal resource at least two terminals evenly is configured at least two different continuous sub-frame of uplink.The up signal resource that at least two continuous sub-frame of uplink are taken evenly distributes.
In another embodiment of the present invention, this first configuration module comprises:
Computing unit is used to calculate the up signal resource at single terminal;
Dispensing unit is used at least two continuous sub-frame of uplink, searching the sub-frame of uplink of PUCCH resource occupation value less than predetermined value, disposes all up signal resources at single terminal.
Module in the said apparatus can be provided with separately, also can be arranged in the device certainly.
In another embodiment of the present invention, a kind of base station also is provided, comprising:
Select module, be used for selecting a sub-frame of uplink at least two continuous sub-frame of uplink;
First configuration module is used for disposing all up signal resources at single terminal at a selected sub-frame of uplink.
In another embodiment of the present invention, this base station also comprises:
Detection module is used to detect whether at least two continuous sub-frame of uplink are arranged;
In another embodiment of the present invention; This base station also comprises: second configuration module; Be used for the up signal resource at least two terminals evenly is configured at least two different continuous sub-frame of uplink, the up signal resource that at least two continuous sub-frame of uplink are taken evenly distributes.
In above-mentioned base station, this first configuration module comprises:
Computing unit is used to calculate the up signal resource at single terminal;
Dispensing unit is used at least two continuous sub-frame of uplink, searching the sub-frame of uplink of the PUCCH resource value of accounting for less than predetermined value, disposes all up signal resources at single terminal.
Can know that by technique scheme embodiments of the invention have following beneficial effect:
1) concerning single terminal, should be positioned at same sub-frame of uplink because PUCCH is gone up the up signaling of sending, thereby under the prerequisite that does not influence performance, can reach purpose of power saving;
2) to there being at least two terminals to send the scene of up signaling in the system, the up signaling bear resource through on the uniform distribution PUCCH at least two sub-frame of uplink has reduced the interference of minizone, thus optimization of system performance.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (7)
1. up signaling configuration method is used for it is characterized in that at least two continuous sub-frame of uplink collocating uplink signal resources said method comprises:
In said two continuous sub-frame of uplink, select a sub-frame of uplink at least;
Calculate the required said up signal resource in single terminal; On said at least two continuous sub-frame of uplink, search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value then, all said up signal resources at the said single terminal of configuration on a said sub-frame of uplink less than predetermined value.
2. collocation method according to claim 1 is characterized in that, said method also comprises:
The said up signal resource at least two terminals is configured on different said two continuous sub-frame of uplink at least.
3. according to each described collocation method in the claim 1 to 2, it is characterized in that said up signal resource comprises frequency resource and/or sign indicating number resource.
4. up signaling configuration device is used for it is characterized in that at least two continuous sub-frame of uplink collocating uplink signal resources said inking device comprises:
Select module, be used for selecting a sub-frame of uplink at said at least two continuous sub-frame of uplink;
First configuration module comprises: computing unit is used to calculate the said up signal resource at single terminal; Dispensing unit; Be used at said at least two continuous sub-frame of uplink; Search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value, all said up signal resources at the said single terminal of configuration on a said sub-frame of uplink less than predetermined value.
5. inking device according to claim 4 is characterized in that, said inking device also comprises:
Second configuration module is used for the said up signal resource at least two terminals is configured in different said at least two continuous sub-frame of uplink.
6. a base station is used for it is characterized in that at least two continuous sub-frame of uplink collocating uplink signal resources, comprising:
Select module, be used for selecting a sub-frame of uplink at said at least two continuous sub-frame of uplink;
First configuration module comprises: computing unit is used to calculate the said up signal resource at single terminal;
Dispensing unit; Be used at said at least two continuous sub-frame of uplink; Search the said sub-frame of uplink of Physical Uplink Control Channel PUCCH resource occupation value, all said up signal resources at the said single terminal of configuration on a said sub-frame of uplink less than predetermined value.
7. base station according to claim 8 is characterized in that, said base station also comprises:
Second configuration module is used for the said up signal resource at least two terminals is configured in different said at least two continuous sub-frame of uplink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101067658A CN101583162B (en) | 2008-05-15 | 2008-05-15 | Configuration method, device and base station for uplink signaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101067658A CN101583162B (en) | 2008-05-15 | 2008-05-15 | Configuration method, device and base station for uplink signaling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101583162A CN101583162A (en) | 2009-11-18 |
| CN101583162B true CN101583162B (en) | 2012-07-04 |
Family
ID=41365060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101067658A Active CN101583162B (en) | 2008-05-15 | 2008-05-15 | Configuration method, device and base station for uplink signaling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101583162B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699904A (en) * | 2009-10-27 | 2010-04-28 | 华为技术有限公司 | Method for saving energy and system thereof |
| CN102131280B (en) * | 2010-01-12 | 2013-11-06 | 电信科学技术研究院 | Method and equipment for determining coverage condition of uplink channel and transmitting dedicated scheduling requests |
| KR101880460B1 (en) * | 2011-01-10 | 2018-07-20 | 엘지전자 주식회사 | Method of transmitting control information in a wireless communication system and apparatus thereof |
| CN106255193B (en) * | 2011-04-27 | 2019-12-13 | 华为技术有限公司 | Uplink power control method and device based on flexible subframes in time division duplex mode |
| CN103188775B (en) * | 2011-12-30 | 2016-08-10 | 华为技术有限公司 | The method of quiet period sleep, website and system |
| CN102695283B (en) * | 2012-05-28 | 2015-01-21 | 华为技术有限公司 | Dispatching method of downlink subframes and base station |
| CN108811054B (en) * | 2017-05-05 | 2021-09-03 | 上海诺基亚贝尔股份有限公司 | Method and apparatus for resource allocation in relay communication |
-
2008
- 2008-05-15 CN CN2008101067658A patent/CN101583162B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101583162A (en) | 2009-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101883369B (en) | Blind detection method | |
| CN101583162B (en) | Configuration method, device and base station for uplink signaling | |
| EP2926578B1 (en) | Multiple access scheme for narrowband channels | |
| EP2941932B1 (en) | Multiple access scheme for multi-channels of a network with a limited link budget | |
| CN102014494B (en) | Configuration method and device of downlink scheduling information | |
| CN101848501B (en) | Method and base station for realizing carrier aggregation | |
| CN102740407B (en) | Uplink dispatch method and system, terminal and base station | |
| CN101370246B (en) | Broadcasting method, system and apparatus for system information | |
| CN101715237A (en) | Uplink transmission method and device based on competition | |
| CN110062450B (en) | Method, device and equipment for saving energy consumption of 5G base station and readable storage medium | |
| CN103096379A (en) | Control information transmission method | |
| CN101784081A (en) | Method for configuring downlink physical control channel, base station and terminal | |
| CN108377551B (en) | DRX (discontinuous reception) processing method and device | |
| CN101778459A (en) | Signal sending method of base station and energy-saving base station | |
| EP2896257B1 (en) | Reuse of an idle paging slot of a frame in a machine-to-machine (m2m) wireless wide area network (wan) | |
| EP2936904A1 (en) | Systems and methods to conserve power of machine-to-machine devices using a shared data channel | |
| CN100442891C (en) | Method, system and application of mobile terminal reporting frequency information | |
| CN105323857A (en) | HARQ information configuration method and related device | |
| CN102711263A (en) | Multiuser uplink control signal sending method in non-continuous receiving mode | |
| CN112468204B (en) | Resource allocation method, device, storage medium and satellite communication system | |
| CN100583729C (en) | Method for indicating the packet data channel used by the terminal to send the data | |
| CN101534542B (en) | Method, device and system for adjusting random access leader sequence | |
| EP4236479A1 (en) | Control method and apparatus for energy conservation of base station, and computer-readable storage medium | |
| CN101854656A (en) | Method for measuring SNPL (Serving and Neighbor Path Loss) in multicarrier system, RNC (Radio Network Controller) and multicarrier terminal | |
| CN103024906A (en) | Communication method, terminal, base station and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110510 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110510 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210611 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |