CN105323840B - Power configuration method - Google Patents
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- CN105323840B CN105323840B CN201410364892.3A CN201410364892A CN105323840B CN 105323840 B CN105323840 B CN 105323840B CN 201410364892 A CN201410364892 A CN 201410364892A CN 105323840 B CN105323840 B CN 105323840B
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Abstract
The invention provides a power configuration method which comprises the steps that a th terminal receives a system message, the th terminal limits the maximum allowable transmission power of a high-power terminal according to a base station in the system message sent by the base station, and adjusts the maximum transmission power configured inside.
Description
Technical Field
The present invention relates to the field of wireless technologies, and in particular, to a power configuration method.
Background
The Time Division Long term evolution (TD-LTE) technology is a new generation broadband mobile communication wireless access technology, and compared with the wireless access technology of the existing 2G and 3G mobile communication systems, the TD-LTE technology has the characteristics of high transmission rate, small transmission delay, high Quality of Service (QoS) guarantee and the like.
The cluster communication system has general applications in public safety, transportation, public utilities, petrochemical, industrial and commercial, and military. some industrial applications require that cluster terminals still be able to perform high-rate traffic at the shadow or cell edge in a cell and to ensure the quality of service of the cluster terminals.the maximum output power of the cluster terminals can be increased to obtain higher data throughput without changing the existing network deployment.at present, a wideband digital cluster communication system based on the TD-LTE technology has the maximum output power of an existing cluster terminal following the third generation Partnership Project (3 GPP) LTE protocol.the requirement of a currently defined power class 3 cluster terminal is that the maximum output power at any transmission bandwidth is 23 m, such a cluster terminal is referred to herein as an LTE standard power in a small area, and thus the maximum output power of the LTE cluster terminal cannot be increased to support the high-power uplink power of the LTE cluster terminal based on the existing power standard , and thus the maximum output power of the LTE cluster terminal can not be increased to support the high-power uplink power transmission of the existing wideband digital cluster terminal based on the TD-LTE standard.
Disclosure of Invention
The invention provides a power configuration method, which aims to solve the technical problem that the existing LTE cluster system cannot support a high-power cluster terminal.
The invention provides power configuration methods, comprising:
terminal receiving system message;
and the terminal limits the maximum allowable transmission power of the high-power terminal according to the base station in the system message sent by the base station, and adjusts the maximum transmission power configured in the terminal.
Further , the method further includes:
the th terminal determines its configured maximum transmission power PCMAXWithin the following ranges:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TC0dB for tdd bands and 1.5dB for fdd bands.
In a step , the method further comprises,
when the th terminal is a high-power cluster terminal, P isEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a standard power cluster terminal, the PEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe numerical value of (c).
Further , the method further includes:
determining a maximum output power P of a th terminal according to the power class of the th terminalPowerClassWherein:
when the th terminal is a high-power cluster terminal, determining that the power level of the th terminal is 4;
determining a power class of a terminal to be 3 when the th terminal is a standard power cluster terminal.
In another aspect, the present invention further provides power allocation methods, comprising:
the high-power trunking terminal acquires whether the current base station supports the maximum output power of the self capability of the high-power trunking terminal according to the received indication information sent by the base station;
if the current base station supports the maximum output power of the self capability of the high-power trunking terminal, determining the power grade of the high-power trunking terminal as the power grade corresponding to the maximum output power of the self capability, namely the power grade 4;
and if the current base station does not support the maximum output power of the self capability of the high-power trunking terminal, determining the power grade of the high-power trunking terminal as the power grade corresponding to the maximum output power of the standard power trunking terminal, namely the power grade 3.
Further , the method further includes:
the high-power trunking terminal determines the maximum transmitting power P configured to the high-power trunking terminalCMAXWithin the following ranges:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TC0dB for tdd bands and 1.5dB for fdd bands.
In a step , the method further comprises,
when the th terminal is a high-power cluster terminal and the power level thereof is 4, P isEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a high-power cluster terminal and the power level thereof is 3, P isEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe numerical value of (c).
In another aspect, the present invention further provides power allocation methods, comprising:
the base station adds the parameter of the maximum allowable transmitting power of the base station to the high-power trunking terminal in the system message;
the base station sends a system message to the th terminal, which is used for indicating the maximum allowed transmission power of the th terminal from the base station, so that the th terminal adjusts the maximum transmission power used by the terminal according to the parameter of the maximum allowed transmission power.
Therefore, in the power configuration method provided by the invention, the maximum transmitting power of the high-power trunking terminal can be configured by adding the maximum allowed transmitting power of the base station to the high-power trunking terminal in the system message, so that the function of limiting the uplink transmitting power of the high-power trunking terminal by the base station is realized, the interference influence of the high-power trunking terminal to the same-frequency cells can be limited, and the method is simple and easy to implement and convenient to realize.
Drawings
In order to more clearly illustrate the technical solutions in the present embodiment or the prior art, is briefly introduced in the drawings required in the description of the embodiment or the prior art, it is obvious that the drawings in the following description are embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart illustrating a power configuration method according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a power configuration method according to an embodiment of the present invention;
fig. 3 is a flow chart illustrating a power configuration method according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present embodiments clearer and more complete, the technical solutions in the present embodiments will be described below with reference to the drawings in the present embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.
The present embodiment first provides power configuration methods, referring to fig. 1, including:
step 101, the th terminal receives the system message.
And 102, the terminal limits the maximum allowable transmission power of the high-power terminal according to the base station in the system message sent by the base station, and adjusts the maximum transmission power configured inside.
Wherein the th terminal determines its configured maximum transmission power PCMAXThe following ranges are required:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TC0dB for tdd bands and 1.5dB for fdd bands.
Further, optionally, P is when the th terminal is a high power cluster terminalEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a standard power cluster terminal, PEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe numerical value of (c). Wherein P isEMAXIs the value of cell P-Max sent by the base station in 3GPP TS LTE 36.331 Radio Resource Control (RRC) protocol.
There are 4 classes of power specified for TD-LTE terminals in the LTE protocol. Only power class 3 is currently defined, requiring a maximum output power of 23dBm with a tolerance of ± 2dB for any transmit bandwidth within the channel bandwidth for all TDD bands. Due to the introduction of the high-power trunking terminal, optionally, the requirement of power class 4 is defined for the TD-LTE-based trunking system in the present embodiment.
Wherein power class 4 may require that for all TDD bands, in the channel bandMaximum output power P at any transmission bandwidth within a wide rangePowerClassAre all larger than 23dBm, for example, 36dBm for a high power trunking terminal, with a tolerance of ± 2db, i.e. the high power trunking terminal is designated as a trunking terminal of power class 4, the aforementioned LTE standard power trunking terminal is a trunking terminal of power class 3, and the maximum output power P of the terminal can be determined by the power class of the terminalPowerClass。
In addition, the LTE standard power trunking terminal and the standard LTE terminal accessed to the TD-LTE trunking system can set the maximum transmission power P configured for the terminal along the LTE standardCMAXThe specification of (1).
The system message received by the terminal may include information element or parameter, the value of the information element may be the parameter of the maximum allowed transmission power of the base station to the high-power trunking terminal, or the parameter may be the parameter of the maximum allowed transmission power of the base station to the high-power trunking terminal.
Alternatively, the limitation of the maximum allowed transmission power of the high-power trunking terminal by adding the base station to the system message can be realized by various ways, such as:
newly adding a cell P-Max-forkhop UE in a system message SystemInformationBlockType1, and converting the value P of the cellEMAX_HighPowerUEAs a parameter of the maximum allowed transmit power of the base station to the high-power trunking terminal, specifically:
a P-Max-forhighpower ue cell is newly added to the system message systemlnformationblocktype 1, and is used to limit the maximum uplink allowed transmit power of the high-power cluster terminal, and the statements are as follows:
and if the value does not exist, the high-power trunking terminal determines the maximum transmitting power according to the capability of the high-power trunking terminal. PEMAX_HighPowerUEThe value of P-Max-ForhighPower cell is used as the parameter of maximum allowable transmitting power of base station to high-power cluster terminal, according to the parameter, the high-power terminal sets its maximum transmitting power PCMAX。
Or, adding a new system message type to the system messages systemlnformation and systemlnformationblocktype 1: adding a cell P-Max-forhighPower UE in the added SystemInformationBlock Type Trung, and converting the value P of the cellEMAX_HighPowerUEAs a parameter of the maximum allowed transmit power of the base station to the high-power trunking terminal, specifically:
adding a new system message type in the system message systemlnformation and systemlnformationblocktype 1: the systemlnformationblocktypereporting, a cell P-Max-forhighpower is newly added in the added systemlnformationblocktypereporting, and the specific statements are as follows:
let PEMAX_HighPowerUEThe value of P-Max-ForhighPower cell, that is, the parameter of maximum allowable transmission power of base station to high-power trunking terminal, according to the parameter, high-power terminal sets its maximum transmission power PCMAX。
Or, adding new parameter P-Max-forHighPower in system message SystemInformationBlockType1, and adding its parameter value PEMAX_HighPowerUEAs a parameter of the maximum allowed transmit power of the base station to the high-power trunking terminal, specifically:
a parameter P-Max-forhighpower ue is newly added to the system message systemlnformationblocktype 1, and the specific statement is as follows:
wherein, the value P of the parameter P-Max-forHighPowerUE is usedEMAX_HighPowerUEAs the parameter of the maximum allowable transmitting power of the base station to the high-power trunking terminal, the high-power terminal sets the maximum transmitting power P configured by the high-power terminal according to the parameterCMAX。
Or, adding a new system message type to the system messages systemlnformation and systemlnformationblocktype 1: adding a parameter P-Max-forHighPower in the added SystemInformationBlockTypeTrunking, and adding the parameter P into the added SystemInformationBlockTypeTrunkingEMAX_HighPowerUEAs a parameter of the maximum allowed transmit power of the base station to the high-power trunking terminal, specifically:
adding a new system message type in the system message systemlnformation and systemlnformationblocktype 1: the systemlnformationblocktypebacking, newly adding parameter P-Max-forhighpower in the added systemlnformationblocktypebacking, and the specific statements are as follows:
wherein, the value P of the parameter P-Max-forHighPowerUE is usedEMAX_HighPowerUEAs the parameter of the maximum allowable transmitting power of the base station to the high-power trunking terminal, the high-power terminal sets the maximum transmitting power P configured by the high-power terminal according to the parameterCMAX。
In order to enable wide use of the high-power trunking terminal in the trunking system, the high-power trunking terminal can work under a trunking base station which does not support the high-power trunking terminal, and can also work by being degraded into an LTE standard power trunking terminal under a scene without high-power transmission, and the base station and the trunking terminal in the trunking system can be configured correspondingly, so that the high-power trunking terminal can adjust the working state in a self-adaptive manner.
When the high-power trunking terminal needs to back to the standard power trunking terminal, the trunking terminal may determine whether the current base station supports the high-power trunking terminal by using various methods, such as determining by using indication information or parameters sent by the current base station to the trunking terminal.
As shown in fig. 2, this embodiment further provides power configuration methods, including:
step 201: and the high-power trunking terminal acquires whether the current base station supports the maximum output power of the self capability of the high-power trunking terminal according to the received indication information sent by the base station.
Step 202: if the current base station supports the maximum output power of the self-capability of the high-power trunking terminal, the power grade of the high-power trunking terminal is determined to be the power grade corresponding to the maximum output power of the self-capability, namely the power grade 4.
Step 203: and if the current base station does not support the maximum output power of the self capability of the high-power trunking terminal, determining the power grade of the high-power trunking terminal as the power grade corresponding to the maximum output power of the standard power trunking terminal, namely the power grade 3.
Wherein the high-power trunking terminal determines the maximum transmitting power P configured for the high-power trunking terminalCMAXThe following ranges are required:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TC0dB for tdd bands and 1.5dB for fdd bands.
Alternatively, when the th terminal is a high power cluster terminal and its power class is 4, PEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a high-power cluster terminal and its power class is 3, PEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe numerical value of (c).
Fig. 3 shows power configuration methods, and as shown in fig. 3, the embodiment specifically includes:
step 301: and the base station increases the parameter of the maximum allowed transmission power of the base station to the high-power trunking terminal in the system message.
It can be seen that the present embodiment has at least the following beneficial effects:
in the power configuration method provided by this embodiment, the maximum transmitting power of the high-power trunking terminal can be configured by adding the maximum allowed transmitting power of the base station to the high-power trunking terminal in the system message, so that the function of limiting the uplink transmitting power of the high-power trunking terminal by the base station is realized, the interference influence of the high-power trunking terminal on the same-frequency cells can be limited, and the method is simple and easy to implement and is convenient to implement.
In addition, the embodiment also provides a method for implementing the fallback of the high-power trunking terminal to the LTE standard power trunking terminal, so that the high-power trunking terminal can be used more extensively in the trunking system.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (2)
1, A power configuration method, comprising:
terminal receives system message, which contains the parameter of the maximum allowable sending power of the base station to the high power cluster terminal, or the cell whose cell value is the parameter of the maximum allowable sending power of the base station to the high power cluster terminal;
the terminal limits the maximum allowable transmitting power of the high-power terminal according to the base station in the system message sent by the base station, and adjusts the maximum transmitting power configured inside;
the th terminal determines its configured maximum transmission power PCMAXWithin the following ranges:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TCThe frequency band of the time division duplex is 0dB, and the frequency band of the frequency division duplex is 1.5 dB;
when the th terminal is a high-power cluster terminal, P isEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a standard power cluster terminal, the PEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe value of (d);
determining a maximum output power P of a th terminal according to the power class of the th terminalPowerClassWherein:
when the th terminal is a high-power cluster terminal, determining that the power level of the th terminal is 4;
determining a power class of a terminal to be 3 when the th terminal is a standard power cluster terminal.
The power configuration method of , comprising:
the high-power trunking terminal acquires whether the current base station supports the maximum output power of the self capability of the high-power trunking terminal according to the received indication information sent by the base station;
if the current base station supports the maximum output power of the self capability of the high-power trunking terminal, determining the power grade of the high-power trunking terminal as the power grade corresponding to the maximum output power of the self capability, namely the power grade 4;
if the current base station does not support the maximum output power of the self capability of the high-power trunking terminal, determining the power grade of the high-power trunking terminal as the power grade corresponding to the maximum output power of the standard power trunking terminal, namely the power grade 3;
the high-power trunking terminal determines the maximum transmitting power P configured to the high-power trunking terminalCMAXWithin the following ranges:
PCMAX_L≤PCMAX≤PCMAX_H
wherein the content of the first and second substances,
PCMAX_L＝MIN{PEMAX_TRUNK–ΔTC,PPowerClass–MPR–A-MPR–ΔTC}，
PCMAX_H＝MIN{PEMAX_TRUNK，PPowerClass}，
wherein P isEMAX_TRUNKIs the maximum allowable transmission power, P, of the base station to the th terminalPowerClassMaximum output power of th terminal, MPR maximum power reduction, A-MPR additional maximum power reduction, Δ TCThe frequency band of the time division duplex is 0dB, and the frequency band of the frequency division duplex is 1.5 dB;
when the th terminal is a high-power cluster terminal and the power level thereof is 4, P isEMAX_TRUNKParameter P of maximum allowable transmission power of base station to high-power trunking terminalEMAX_HighPowerUEThe value of (d);
when the th terminal is a high-power cluster terminal and the power level thereof is 3, P isEMAX_TRUNKParameter P being the maximum allowed transmit power of the base station to the standard power cluster terminalEMAXThe numerical value of (c).
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| BR112019006036A2 (en) * | 2016-09-29 | 2019-06-25 | Ntt Docomo Inc | user equipment |
| CN110831138B (en) * | 2018-08-10 | 2021-07-09 | 华为技术有限公司 | Power determination method and device |
| WO2023184558A1 (en) * | 2022-04-02 | 2023-10-05 | 北京小米移动软件有限公司 | Power class determination method and apparatus, and device |
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| US5926133A (en) * | 1997-07-21 | 1999-07-20 | Denso Corporation | Differentially corrected position location system and method for mobile communication networks |
| KR20080050740A (en) * | 2006-12-04 | 2008-06-10 | 엘지전자 주식회사 | Group communication service system and method of controlling the same |
| KR20110049648A (en) * | 2009-11-04 | 2011-05-12 | 한국전자통신연구원 | Method and apparatus for power-efficient link group-based communication |
| CN103947261A (en) * | 2011-10-07 | 2014-07-23 | 苹果公司 | Cell selection using a blacklist or a white list |
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|---|---|---|---|---|
| US5926133A (en) * | 1997-07-21 | 1999-07-20 | Denso Corporation | Differentially corrected position location system and method for mobile communication networks |
| KR20080050740A (en) * | 2006-12-04 | 2008-06-10 | 엘지전자 주식회사 | Group communication service system and method of controlling the same |
| KR20110049648A (en) * | 2009-11-04 | 2011-05-12 | 한국전자통신연구원 | Method and apparatus for power-efficient link group-based communication |
| CN103947261A (en) * | 2011-10-07 | 2014-07-23 | 苹果公司 | Cell selection using a blacklist or a white list |
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