CN1375170A - Temperature controlled radio transmitter in a TDMA system - Google Patents
Temperature controlled radio transmitter in a TDMA system Download PDFInfo
- Publication number
- CN1375170A CN1375170A CN00812916A CN00812916A CN1375170A CN 1375170 A CN1375170 A CN 1375170A CN 00812916 A CN00812916 A CN 00812916A CN 00812916 A CN00812916 A CN 00812916A CN 1375170 A CN1375170 A CN 1375170A
- Authority
- CN
- China
- Prior art keywords
- time slots
- radio
- transmitter
- emission
- radio transmitter
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/036—Cooling arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
A radio transmitter such as a mobile telephone is operating in a TDMA system. The number of slots which can be allocated for transmissions from said device is adjusted based on the ambient temperature, the amount of data to be transmitted, the channel quality, and the transmit power, such that the temperature of the device does not exceed a predetermined value.
Description
Technical field
The present invention relates to radio transmitter, specifically is the variable tdma system of quantity that is used for wherein being used to the time slot launched.More clearly, the present invention relates to wherein that heat dissipation is the handheld device of the problem of a major concern, also relate to the mode of avoiding excessive heating.
Background technology
Have many radio telecommunication systems, wherein different users can utilize TDMA (time division multiple access) to use single radio channel.In tdma system, the time is divided into frame, and each frame is divided into some time slots.Then user can use the same time slot in each frame, and the time of use can be long like that as required.For example, in GSM (global mobile communication system), eight time slots are arranged in each frame.
For a requirement such as the attractive equipment of mobile phone or other radio telecommunication terminal that is used in the mobile communication system is that it should be less.
This system can be used for speech and/or data transmission.Under the situation of data transmission, advantageously mobile device can be launched data to be higher than by launching the speed that is obtained in the time slot in each frame only.Therefore, be proposed based on the system such as GPRS (general packet radio service) of GSM, one of them mobile device can be launched data in the more than one time slot in each frame.
Summary of the invention
Although advantageously launch data with the flank speed that emission interface was allowed usually, the operation meeting of radio transmitter produces heat in terminal.Especially under the situation of little handheld device, the heat that is produced may can dissipate greater than equipment, thereby causes the rising of device temperature.
Therefore, the present invention relates to avoid the mode of the excessive heating of transmitter to control radio transmission with searching.
According to a particular aspect of the invention, control transmitter, so that be no more than maximum temperature.
More clearly, in a preferred embodiment, wherein a plurality of time slots launched therein of equipment are by some or all of the controlling according to following content, so that equipment is no more than maximum temperature: the total amount of data that launch; Desired emitting power grade; Channel quality; Environment temperature.
Description of drawings
Fig. 1 explanation is according to a mobile communication equipment of the present invention.
The schematic block diagram of equipment in Fig. 2 key diagram 1.
Fig. 3 explanation is with respect to the hygrogram of the equipment of operating time drafting.
Embodiment
Fig. 1 represents a mobile phone 2, is applicable to any radio telecommunication terminal although should be appreciated that the present invention, particularly mainly or specially launches this terminal of data rather than voice signal.The present invention is particularly useful for launching the situation of grouped data.
As everyone knows, advantageously phone 2 is less and weight is lighter, so that use.But, this can cause heat dissipation ability quite low.
Fig. 2 is the block diagram of the internal structure of phone among Fig. 1.Wherein only show each several part relevant in this phone with understanding the present invention.Other parts are conventional.
Phone 2 has data to connect 4, is used for from external equipment (not shown) receiving block data.For example, data can be utilized wire link or infrared or other wireless connections reception.Be adapted to pass through transceiver circuitry 8 and antenna 10 before the form of launching on the radio interface being converted into, the data that received are stored in the buffering area 6.
Phone is under the general controls of processor 12, and processor 12 especially can be controlled in the tdma system in each frame the quantity that is made the time slot that is used for launching data by equipment.Because the quantity of time slot of distributing to a particular device is finally by network control, so realize about the wherein judgement of the quantity of the time slot of equipment emission data by an appropriate message slave unit being sent to network.
Traditionally, processor receives about the transmit control signal of used power grade of phone from its network of communicating by letter with it.For example, usually under the situation of cellular mobile telephone, when phone during near the base station, it should be with low power transmissions, and when it apart from the base station far the time, then should launch with higher-wattage.
In addition, phone carries out channel quality measurement on the channel of distributing to it.Mass measurement can be signal to noise ratio or wrong bitrate, perhaps any measurement easily.
Phone also comprises two temperature sensors 14,16, first 14 outer surface that can for example be positioned at phone wherein, and second 16 inner surface that can for example be positioned at shell is near the largest heat source of power amplifier normally.Like this, from the measured temperature value indication environment temperature of temperature sensor 14, indicate the internal temperature of phone from the measured temperature value of temperature sensor 16.These two measured values all are provided for processor 12.
Fig. 3 schematically illustrates the temperature of the phone of being measured by second temperature sensor 16 during data transmission.Should be appreciated that the operation meeting that comprises such as the phone radiating circuit of power amplifier is at the inner heat that produces of phone.Some heats can be dissipated in the atmosphere, and some can add heat call, thereby temperature can raise.
The rate dependent that produces heat is in the operating time of radiating circuit.Like this, if in more realizations of each frame, launch data, then will produce heat with higher speed.The speed of generation heat also depends on the phone power output during launching.
The total amount of heat that is produced depends on the operating time of radiating circuit.
The rate dependent that heat can be dissipated is in environment temperature.Under colder condition, heat can disappear to be higher than the speed under the heat condition.
Therefore, in order to guarantee to be no more than maximum temperature, make the timeslot number Be Controlled in each frame that is used for launching data by phone by the measured phone of temperature sensor 16.
If be stored in the buffering area and etc. total amount of data to be launched enough little, then can accept the maximum number of timeslot number for obtaining from network.If the duration of emission is shorter,, also can not cause the excessive heating of phone even then produce heat with two-forty.
On the other hand, if be stored in the buffering area and etc. total amount of data to be launched bigger, if then in the short duration with two-forty emission data, can produce the excessive heating of phone.In this case, preferably in than long duration with than low rate emission data.
Generally, the present invention relates to a kind of system, wherein terminal is determined the data transmission rate for example expressed with the timeslot number that is used to launch in every frame, and its assurance is no more than the predetermined maximum temperature of phone.
Like this, as shown in Figure 3, run through during the emission, the temperature of phone can raise, and only when emission finishes, just arrives maximum temperature.
Can come the specified data emission rate according to previously mentioned parameter.For example, terminal can have present maximum data rate, and perhaps " key words sorting (classmark) ", it is determined by processing power, available memory, employed hardware and software structure and heat dissipation characteristics thereof such as phone.If emission mass data, if perhaps relatively poor channel quality means data and has to repeatedly retransmitted, if perhaps the expectation transmitting power is higher than a definite grade, if perhaps environment temperature is higher than a definite grade, if perhaps more than one these factors exist, then utilize an appropriate amount that is lower than this maximum rate to be reduced to the set actual speed rate of any specified data emission.
A kind of terminal and method of operation thereof have more than been described, its under the situation that temperature of terminal can be elevated on the greatest level, the maximum data emission rate.
Claims (12)
1. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
Monitor environment temperature; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to measured environment temperature, so that be no more than the predetermined maximum temperature of radio transmitter.
2. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
Monitor environment temperature; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to the environment temperature that is monitored.
3. a radio communication equipment comprises a radio transmitter that runs in the radio communications system that has defined a plurality of time slots, and this equipment comprises:
A temperature sensor that is used to monitor environment temperature; And
A controller is used for controlling a plurality of time slots that are allocated for from the emission of described transmitter in response to the environment temperature that is monitored, so that be no more than the predetermined maximum temperature of radio transmitter.
4. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
The total amount of data that supervision will be launched; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to the total amount of data that will launch, so that be no more than the predetermined maximum temperature of radio transmitter.
5. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
The total amount of data that supervision will be launched; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to the total amount of data that will launch.
6. a radio communication equipment comprises a radio transmitter that runs in the radio communications system that has defined a plurality of time slots, and this equipment comprises:
A device that is used to monitor the total amount of data that to launch; And
A controller is used for controlling a plurality of time slots that are allocated for from the emission of described transmitter in response to the total amount of data that is monitored, so that be no more than the predetermined maximum temperature of radio transmitter.
7. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
Monitor the emission power output of an expection; And
Emission power output in response to expection is controlled a plurality of time slots that are allocated for from the emission of described transmitter, so that be no more than the predetermined maximum temperature of radio transmitter.
8. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
Monitor the emission power output of an expection; And
Emission power output in response to expection is controlled a plurality of time slots that are allocated for from the emission of described transmitter.
9. a radio communication equipment comprises a radio transmitter that runs in the radio communications system that has defined a plurality of time slots, and this equipment comprises:
A device that is used to monitor an expection emission power output; And
A controller is used for controlling a plurality of time slots that are allocated for from the emission of described transmitter in response to the power of being expected, so that be no more than the predetermined maximum temperature of radio transmitter.
10. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, and this method comprises:
The monitors transmitted channel quality; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to the send channel quality, so that be no more than the predetermined maximum temperature of radio transmitter.
11. an operation runs on the method for the radio transmitter in the radio communications system that has defined a plurality of time slots, this method comprises:
The monitors transmitted channel quality; And
Control a plurality of time slots that are allocated for from the emission of described transmitter in response to the send channel quality that is monitored.
12. a radio communication equipment comprises a radio transmitter that runs in the radio communications system that has defined a plurality of time slots, this equipment comprises:
A device that is used for the monitors transmitted channel quality; And
A controller is used for controlling a plurality of time slots that are allocated for from the emission of described transmitter in response to the send channel quality that is monitored, so that be no more than the predetermined maximum temperature of radio transmitter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9921827.3 | 1999-09-15 | ||
| GB9921827A GB2354402B (en) | 1999-09-15 | 1999-09-15 | Radio transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1375170A true CN1375170A (en) | 2002-10-16 |
Family
ID=10860978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00812916A Pending CN1375170A (en) | 1999-09-15 | 2000-08-25 | Temperature controlled radio transmitter in a TDMA system |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1214854A1 (en) |
| CN (1) | CN1375170A (en) |
| AU (1) | AU7648500A (en) |
| GB (1) | GB2354402B (en) |
| MY (1) | MY133631A (en) |
| WO (1) | WO2001020933A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017161929A1 (en) * | 2016-03-21 | 2017-09-28 | 深圳市中兴微电子技术有限公司 | Temperature control method and device, terminal, and storage medium |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10241660A1 (en) * | 2002-09-05 | 2004-03-18 | Siemens Ag | Method for temperature control in communications terminal e.g. in mobile RF network systems, has temperature measured within communications terminal for pre-determined time intervals |
| GB0613118D0 (en) * | 2006-06-30 | 2006-08-09 | Nokia Corp | Controlling a mobile device |
| US8217707B2 (en) | 2006-08-16 | 2012-07-10 | St-Ericsson Sa | Thermal control system and method for operating an integrated circuit |
| CN101833342B (en) * | 2010-03-12 | 2013-04-24 | 华为终端有限公司 | Terminal product and thermal control method thereof |
| US9190738B2 (en) | 2010-04-11 | 2015-11-17 | Broadcom Corporation | Projected artificial magnetic mirror |
| US9041618B2 (en) | 2010-04-11 | 2015-05-26 | Broadcom Corporation | Three-dimensional multiple spiral antenna and applications thereof |
| US9667280B2 (en) * | 2010-09-24 | 2017-05-30 | Qualcomm Incorporated | Methods and apparatus for touch temperature management based on power dissipation history |
| US8803641B2 (en) | 2012-09-10 | 2014-08-12 | Broadcom Corporation | Multiple droplet liquid MEMS component |
| US9112586B2 (en) | 2012-09-10 | 2015-08-18 | Broadcom Corporation | Radio circuits and components thereof including temperature responsive liquid MEMS |
| US9008590B2 (en) | 2012-09-10 | 2015-04-14 | Broadcom Corporation | Liquid MEMS component and RF applications thereof |
| US8830016B2 (en) | 2012-09-10 | 2014-09-09 | Broadcom Corporation | Liquid MEMS magnetic component |
| US9378907B2 (en) | 2012-09-10 | 2016-06-28 | Broadcom Corporation | Liquid MEMS component responsive to pressure |
| US9455089B2 (en) | 2012-09-10 | 2016-09-27 | Broadcom Corporation | Liquid MEMS capacitor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519886A (en) * | 1994-09-26 | 1996-05-21 | Motorola, Inc. | Method and apparatus for controlling device temperature during transmissions |
| AU714919B2 (en) * | 1996-04-02 | 2000-01-13 | Nec Corporation | Wireless communication equipment for remote station |
| JP2872112B2 (en) * | 1996-06-07 | 1999-03-17 | 埼玉日本電気株式会社 | Mobile communication device control equipment for packet communication |
| JP2990150B2 (en) * | 1998-04-06 | 1999-12-13 | 静岡日本電気株式会社 | Method and apparatus for preventing overheating of mobile phone |
| GB2339113B (en) * | 1998-06-30 | 2003-05-21 | Nokia Mobile Phones Ltd | Data transmission in tdma system |
| US6760311B1 (en) * | 1998-11-20 | 2004-07-06 | Ericsson Inc. | Thermal transmission control of wireless data modem |
-
1999
- 1999-09-15 GB GB9921827A patent/GB2354402B/en not_active Expired - Fee Related
-
2000
- 2000-08-25 CN CN00812916A patent/CN1375170A/en active Pending
- 2000-08-25 AU AU76485/00A patent/AU7648500A/en not_active Abandoned
- 2000-08-25 WO PCT/EP2000/008351 patent/WO2001020933A1/en not_active Application Discontinuation
- 2000-08-25 EP EP00965899A patent/EP1214854A1/en not_active Withdrawn
- 2000-09-14 MY MYPI20004269 patent/MY133631A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017161929A1 (en) * | 2016-03-21 | 2017-09-28 | 深圳市中兴微电子技术有限公司 | Temperature control method and device, terminal, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2354402B (en) | 2004-02-11 |
| EP1214854A1 (en) | 2002-06-19 |
| AU7648500A (en) | 2001-04-17 |
| WO2001020933A1 (en) | 2001-03-22 |
| GB2354402A (en) | 2001-03-21 |
| MY133631A (en) | 2007-11-30 |
| GB9921827D0 (en) | 1999-11-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |