CN101399572A - Control method and system for uplink transmission power - Google Patents
Control method and system for uplink transmission power Download PDFInfo
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- CN101399572A CN101399572A CNA2007101224122A CN200710122412A CN101399572A CN 101399572 A CN101399572 A CN 101399572A CN A2007101224122 A CNA2007101224122 A CN A2007101224122A CN 200710122412 A CN200710122412 A CN 200710122412A CN 101399572 A CN101399572 A CN 101399572A
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- time slot
- terminal
- interference value
- base station
- pnich
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a control method for uplink transmitted power. In the invention, a base station periodically sends downs up time slot disturbed value used for a terminal calculating emission power of the uplink of the terminal in a uniformed way; and RNC is not needed to respectively determine and send down corresponding power value for every terminal according to the request of every terminal; therefore, excessive processing resources in a network side are not gustily occupied because a great amount of terminals ask for obtaining the emission power of the uplink, thus increasing transmission efficiency of a system as well as realizing ring opening control of the emission power of the uplink. The invention also discloses a system for realizing emission power control of the uplink.
Description
Technical field
The present invention relates to power control techniques, particularly a kind of control method for uplink transmitted power and a kind of system that realizes up-link transmission power control.
Background technology
In existing time division duplex (TDD) universal mobile telecommunications system (UMTS), terminal by up link before network side sends data, to network side acquisition request up-link transmission power, RNC in the network side needs to determine corresponding performance number according to the channel disturbance situation of each terminal affiliated subdistrict earlier, and is handed down to this terminal by the base station of this terminal affiliated subdistrict.For example, the base station can issue 3 layers of message of diverse network such as uplink physical channel control (Uplink Physical Channel Control) message to terminal, to notify terminal with the desirable received power of network side.Like this, this terminal is determined the up-link transmission power of self according to the performance number that receives, and, send data to network side, thereby realized open loop control to the up-link transmission power of terminal by up link based on determined up-link transmission power.
Yet, in above-mentioned control up-link transmission power scheme, RNC needs to determine respectively the pairing performance number of each terminal, be that RNC and terminal are based on point-to-point mode, and difference constantly the terminal quantity of acquisition request up-link transmission power be unpredictable, if have the great amount of terminals need be when network side sends data by up link at synchronization, then RNC needs to determine simultaneously the pairing performance number of all terminals, take other and handled resource requirement, thereby make the treatment effeciency of RNC reduce, and then reduced system transmissions efficient.
Summary of the invention
In view of this, the invention provides a kind of control method for uplink transmitted power and a kind of system that realizes up-link transmission power control, can improve system transmissions efficient.
A kind of control method for uplink transmitted power provided by the invention comprises:
In each predetermined period, the base station is handed down to each terminal in its sub-district, place respectively with its last detected ascending time slot interference value;
The ascending time slot interference value that the terminal utilization receives calculates the up-link transmission power of himself.
The base station is carried on described ascending time slot interference value in the 7th type systematic block of information SIB7 message and is handed down to terminal.
Uplink time slot interference value tabulation UL time slot interference list is set in the TDD element of described SIB7 message in advance, and described ascending time slot interference value is arranged in UL time slotinterference list.
Set in advance physical base station indicating channel PNICH, the base station is handed down to terminal by described PNICH with described ascending time slot interference value.
Comprise data symbol and channel pilot sequence field among the described PNICH;
The base station is encoded to Interference Signal Code Power ISCP bit stream with described ascending time slot interference value, as the data symbol among the PNICH.
Further comprise the uplink time slot numbering among the described PNICH and keep the territory.
Described PNICH is multiplexing in the time slot 0 of Common Control Physical Channel CCPCH.
Described PNICH is multiplexing in non-0 time slot of Common Control Physical Channel CCPCH.
The ascending time slot interference value that described terminal utilization receives, calculate the up-link transmission power of himself according to following formula:
P＝SIR
t?arg?et+L+I
j
Wherein, P is the up-link transmission power of himself; SIR
T arg etFor being preset in the reception signal interference ratio in the terminal; L is that terminal is passed through the circuit loss value that down public guide frequency obtains; I
jInterference value for j ascending time slot being received from network side.
A kind of system that realizes up-link transmission power control provided by the invention, this system comprises base station and terminal, wherein,
Described base station is used in each predetermined period, and its last detected ascending time slot interference value is handed down to each terminal in its sub-district, place respectively;
Described terminal is used to utilize the ascending time slot interference value that receives, and calculates the up-link transmission power of himself.
This shows, the present invention is periodically issued to each terminal unification by the base station and is used for the ascending time slot interference value that terminal is calculated himself up-link transmission power, and do not need the request of RNC according to each terminal, being respectively each terminal determines corresponding performance number and issues, thereby can be owing to great amount of terminals while acquisition request up-link transmission power takies processing resource too much in the network side with happening suddenly, thereby in the open loop control that realizes up-link transmission power, improved system transmissions efficient.
Description of drawings
Fig. 1 is the schematic flow sheet of control method for uplink transmitted power among the present invention.
Fig. 2 is the structural representation of physical base station indicating channel among the present invention.
Fig. 3 is the schematic diagram of the multiplexing a kind of multiplex mode at Common Control Physical Channel of physical base station indicating channel among the present invention.
Fig. 4 is the schematic diagram of the multiplexing another kind of multiplex mode at Common Control Physical Channel of physical base station indicating channel among the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Among the present invention, terminal periodically is handed down to its detected ascending time slot interference value in the base station, calculates its transmitting power by terminal voluntarily according to the ascending time slot interference value that receives.
Wherein, because the base station in the existing network side can be detected the ascending time slot interference value in its sub-district, place in real time, be used to realize various algorithm process, therefore, among the present invention, the ascending time slot interference value still can be detected according to existing mode in the base station.
Fig. 1 is the schematic flow sheet of control method for uplink transmitted power among the present invention.As shown in Figure 1, control method for uplink transmitted power comprises among the present invention:
Wherein, the length of predetermined period can be set arbitrarily, like this, in a predetermined period, the just possible repeated detection of network side arrives the ascending time slot interference value of each sub-district, therefore, and for terminal can obtain transmitting power more accurately, in this step, needing will be detected at last, be that up-to-date ascending time slot interference value is handed down to terminal.
In this step, the detailed process of calculating up-link transmission power can realize by following formula:
P
A＝SIR
t?arg?et+L+I
j
Wherein, P
ABe the up-link transmission power of terminal self at any one channel A; SIR
T arg etFor being preset in the reception signal interference ratio in the terminal; L is that terminal is passed through the circuit loss value that down public guide frequency obtains; I
jInterference value for j ascending time slot being received from network side.
So far, this flow process finishes.
Above-mentioned flow process is a process that circulation is carried out, the base station is at every turn after terminal issues the ascending time slot interference value, terminal all can recomputate the up-link transmission power of its body, thereby himself up-link transmission power of real-time update has been realized the open loop control to the terminal up-link transmission power.
By above-mentioned flow process as seen, periodically issue by the base station among the present invention and be used for the ascending time slot interference value that terminal is calculated himself up-link transmission power to each terminal unification, and do not need the request of RNC according to each terminal, being respectively each terminal determines corresponding performance number and issues, thereby can be owing to great amount of terminals while acquisition request up-link transmission power takies processing resource too much in the network side with happening suddenly, thereby in the open loop control that realizes up-link transmission power, improved system transmissions efficient.
In the practical application, in above-mentioned steps 101, terminal can be handed down to the ascending time slot interference value in several ways in the base station, below illustrates.
Mode one: the ascending time slot interference value is carried in the 7th type systematic block of information (SIB7) message is handed down to terminal.
Existing SIB7 message can be as shown in table 1.
| Information element/group name claims | Demand | Dan Xuan/multiselect | Type and reference | Semantic description |
| Preference pattern | Essential | |||
| Frequency Division Duplexing (FDD) | ||||
| Uplink reference | Essential | Uplink interference value 10.3.6.87 | ||
| Time division duplex | Free of data | |||
| Physical channel information elements | ||||
| Packet Random Access Channel tabulation in the System information block 5 | Essential | 1 to the largest packet Random Access Channel | Packet Random Access Channel in the order homologous ray message blocks 5 puts in order. | |
| The dynamic continuance grade | Essential | Dynamic continuance grade 10.3.6.35 | ||
| Packet Random Access Channel tabulation in the System information block 6 | Optional | 1 to the largest packet Random Access Channel | Packet Random Access Channel in the order homologous ray message blocks 6 puts in order. | |
| The dynamic continuance grade | Essential | Dynamic continuance grade 10.3.6.35 | ||
| Overtime duration | Essential, and default value is arranged | Overtime duration 10.3.3.12 | Default value is 1. |
Table 1
Among the present invention, can in the option TDD of SIB7 message, increase uplink channel interference time slot tabulation (UL time slot interference list), can comprise at least 1 time slot interference value (TDD time slot interference) in this tabulation, the quantity of time slot interference value can be the time slot maximum quantity at most.
The SIB7 message that has increased the tabulation of uplink channel interference time slot sees also table 2.
| Information element/group name claims | Demand | Dan Xuan/multiselect | Type and reference | Semantic description |
| Preference pattern | Essential | |||
| Frequency Division Duplexing (FDD) | ||||
| Uplink reference | Essential | Uplink interference value 10.3.6.87 | ||
| Time division duplex | ||||
| Up even channel time slot interference tabulation | Essential | 1 to the maximum uplink time slot | ||
| The interference of time division duplex time slot | Essential | The every time slot interference value of time-division system up link | ||
| Physical channel information elements | ||||
| Packet Random Access Channel tabulation in the System information block 5 | Essential | 1 to the largest packet Random Access Channel | Packet Random Access Channel in the order homologous ray message blocks 5 puts in order. | |
| The dynamic continuance grade | Essential | Dynamic continuance grade 10.3.6.35 | ||
| Packet Random Access Channel tabulation in the System information block 6 | Optional | 1 to the largest packet Random Access Channel | Packet Random Access Channel in the order homologous ray message blocks 6 puts in order. | |
| The dynamic continuance grade | Essential | Dynamic continuance grade 10.3.6.35 | ||
| Overtime duration | Essential, and default value is arranged | Termination time factor 10.3.3.12 | Default value is 1. |
Table 2
Like this, the base station can be added its detected uplink time slot interference value in the uplink channel interference time slot tabulation of SIB7 message, and is handed down to terminal by SIB7 message.
Mode two:, the ascending time slot interference value is handed down to terminal by particular physical channel.
(physical Node B indicatingchannel PNICH), is used to transmit the ascending time slot interference value to the invention provides a kind of physical base station indicating channel.
Fig. 2 is the structural representation of physical base station indicating channel among the present invention.As shown in Figure 2, can encode to the ascending time slot interference value in the base station, obtain Interference Signal Code Power (ISCP) bit stream, and the ISCP bit stream that coding is obtained is as in the data symbol among the PINCH, be handed down to terminal by PINCH, transmit channel pilot sequence (Midamble) afterwards, can continue to transmit continuous ISCP bit stream.
In order to make PNICH also can transmit the control data that other are similar to the ascending time slot interference value, in PNICH, also comprise reserved field, can be used for the function expansion in the practical application.
Generally, because uplink pilot time slot (UpPTS) also can be measured in the base station, therefore, terminal also can be handed down to this measurement result together by PNICH in the base station.Only need corresponding information is set in terminal in advance, the position in PNICH gets final product so that terminal is known this result.
Preferably, be 5ms the life cycle of PNICH.Among the present invention, in order to make PNICH not take too much Radio Resource, can PNICH is multiplexing in Common Control Physical Channel (CCPCH).Preferably, the spreading code that adopts among the PNICH (SF) length is 16, to be consistent with multiplexing other channels in CCPCH.
Fig. 3 is the schematic diagram of the multiplexing a kind of multiplex mode at Common Control Physical Channel of physical base station indicating channel among the present invention.As shown in Figure 3, PNICH is multiplexing in time slot 0 with broadcast channel (BCH), pilot channel (PICH), forward access channel (FACH), paging channel (PCH), and comprises a PNICH frame in per 64 frames.
Like this, owing to for example be generally used for transmitting control data such as sub-district feature relevant parameter in the existing time slot 0, therefore that PNICH is multiplexing at time slot 0, then can not take non-0 time interval resource that is used for business data transmission, to save overhead.
In the practical application, according to different physical environments, when for example the idle chip in the time slot 0 was not enough, PNICH also can be multiplexing in non-0 time slot.
Fig. 4 is the schematic diagram of the multiplexing another kind of multiplex mode at Common Control Physical Channel of physical base station indicating channel among the present invention.As shown in Figure 4, PNICH is multiplexing in non-0 time slot with PICH, FACH, PCH, and per 64 frames of PNICH are once multiplexing.
For above-mentioned mode one, need terminal to support upper-layer protocol (for example supporting the agreement of broadcasting decoder function), for aforesaid way two, then need the terminal can receiving baseband signal.
As seen, at different physical environments, terminal configuration, the present invention can issue uplink time slot to terminal by SIB7 message and disturb, and does not need existing channel architecture is transformed, thereby is easy to realize; The present invention can also issue uplink time slot to terminal by default physical channel and disturb, and can not need to revise existing any message like this, and this scheme also is easy to realize, thereby makes technical scheme of the present invention have higher flexibility and be easy to and realize.
In the embodiment of the present invention, also provide a kind of system that realizes up-link transmission power control, this system comprises base station and terminal.
The base station is used in each predetermined period, and its last detected ascending time slot interference value is handed down to each terminal in its sub-district, place respectively.
Terminal is used to utilize the ascending time slot interference value that receives, and calculates the up-link transmission power of himself.
Specifically, the internal processes of the reciprocal process of base station in the said system and terminal room and base station and terminal as described above method realize.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of uplink power control method is characterized in that, comprising:
In each predetermined period, the base station is handed down to each terminal in its sub-district, place respectively with its last detected ascending time slot interference value;
The ascending time slot interference value that the terminal utilization receives calculates the up-link transmission power of himself.
2, the method for claim 1 is characterized in that, the base station is carried on described ascending time slot interference value in the 7th type systematic block of information SIB7 message and is handed down to terminal.
3, method as claimed in claim 2, it is characterized in that, uplink time slot interference value tabulation UL time slot interference list is set in the TDD element of described SIB7 message in advance, and described ascending time slot interference value is arranged in UL time slot interference list.
4, the method for claim 1 is characterized in that, sets in advance physical base station indicating channel PNICH, and the base station is handed down to terminal by described PNICH with described ascending time slot interference value.
5, method as claimed in claim 4 is characterized in that, comprises data symbol and channel pilot sequence field among the described PNICH;
The base station is encoded to Interference Signal Code Power ISCP bit stream with described ascending time slot interference value, as the data symbol among the PNICH.
6, method as claimed in claim 5 is characterized in that, further comprises the uplink time slot numbering among the described PNICH and keeps the territory.
As any described method in the claim 4 to 6, it is characterized in that 7, described PNICH is multiplexing in the time slot 0 of Common Control Physical Channel CCPCH.
As any described method in the claim 4 to 6, it is characterized in that 8, described PNICH is multiplexing in non-0 time slot of Common Control Physical Channel CCPCH.
As any described method in the claim 1 to 6, it is characterized in that 9, the ascending time slot interference value that described terminal utilization receives calculates the up-link transmission power of himself according to following formula:
P＝SIR
target+L+I
j
Wherein, P is the up-link transmission power of himself; SIR
TargetFor being preset in the reception signal interference ratio in the terminal; L is that terminal is passed through the circuit loss value that down public guide frequency obtains; I
jInterference value for j ascending time slot being received from network side.
10, a kind of system that realizes up-link transmission power control is characterized in that this system comprises base station and terminal, wherein,
Described base station is used in each predetermined period, and its last detected ascending time slot interference value is handed down to each terminal in its sub-district, place respectively;
Described terminal is used to utilize the ascending time slot interference value that receives, and calculates the up-link transmission power of himself.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101224122A CN101399572A (en) | 2007-09-25 | 2007-09-25 | Control method and system for uplink transmission power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101224122A CN101399572A (en) | 2007-09-25 | 2007-09-25 | Control method and system for uplink transmission power |
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| Publication Number | Publication Date |
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| CN101399572A true CN101399572A (en) | 2009-04-01 |
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| CNA2007101224122A Pending CN101399572A (en) | 2007-09-25 | 2007-09-25 | Control method and system for uplink transmission power |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000246A1 (en) * | 2009-07-03 | 2011-01-06 | 中兴通讯股份有限公司 | Method and terminal for transmitting and receiving indication signaling of interference control function |
| WO2011069446A1 (en) * | 2009-12-08 | 2011-06-16 | Huawei Technologies Co., Ltd. | System and method for power control |
| US8311055B2 (en) | 2009-12-08 | 2012-11-13 | Futurewei Technologies, Inc. | System and method for scheduling users on a wireless network |
| US8515474B2 (en) | 2010-01-20 | 2013-08-20 | Futurewei Technologies, Inc. | System and method for scheduling users on a wireless network |
| WO2013139302A1 (en) * | 2012-03-23 | 2013-09-26 | 华为技术有限公司 | Uplink power control method, network node and system |
| US8995388B2 (en) | 2012-01-19 | 2015-03-31 | Futurewei Technologies, Inc. | Systems and methods for uplink resource allocation |
| CN104486828A (en) * | 2014-12-11 | 2015-04-01 | 福建星网锐捷网络有限公司 | Uplink power control method, base station and terminal |
| WO2016106604A1 (en) * | 2014-12-30 | 2016-07-07 | 华为技术有限公司 | Method and device for transmitting signal |
-
2007
- 2007-09-25 CN CNA2007101224122A patent/CN101399572A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945465A (en) * | 2009-07-03 | 2011-01-12 | 中兴通讯股份有限公司 | Method for sending and receiving interference control function indication signaling and terminal |
| JP2012531855A (en) * | 2009-07-03 | 2012-12-10 | ズタァ コーポレイション | Method and terminal for transmitting and receiving instruction signal of interference control function |
| WO2011000246A1 (en) * | 2009-07-03 | 2011-01-06 | 中兴通讯股份有限公司 | Method and terminal for transmitting and receiving indication signaling of interference control function |
| CN101945465B (en) * | 2009-07-03 | 2015-01-28 | 中兴通讯股份有限公司 | Method for sending and receiving interference control function indication signaling and terminal |
| US9031599B2 (en) | 2009-12-08 | 2015-05-12 | Futurewei Technologies, Inc. | System and method for power control |
| WO2011069446A1 (en) * | 2009-12-08 | 2011-06-16 | Huawei Technologies Co., Ltd. | System and method for power control |
| US8311055B2 (en) | 2009-12-08 | 2012-11-13 | Futurewei Technologies, Inc. | System and method for scheduling users on a wireless network |
| US10334535B2 (en) | 2009-12-08 | 2019-06-25 | Huawei Technologies Co., Ltd. | System and method for power control |
| US8515474B2 (en) | 2010-01-20 | 2013-08-20 | Futurewei Technologies, Inc. | System and method for scheduling users on a wireless network |
| US8995388B2 (en) | 2012-01-19 | 2015-03-31 | Futurewei Technologies, Inc. | Systems and methods for uplink resource allocation |
| WO2013139302A1 (en) * | 2012-03-23 | 2013-09-26 | 华为技术有限公司 | Uplink power control method, network node and system |
| US11395234B2 (en) | 2012-03-23 | 2022-07-19 | Huawei Technologies Co., Ltd. | Method for uplink power control, network node and system |
| CN104486828B (en) * | 2014-12-11 | 2018-05-01 | 福建星网锐捷网络有限公司 | Ascending power control method, base station and terminal |
| CN104486828A (en) * | 2014-12-11 | 2015-04-01 | 福建星网锐捷网络有限公司 | Uplink power control method, base station and terminal |
| WO2016106604A1 (en) * | 2014-12-30 | 2016-07-07 | 华为技术有限公司 | Method and device for transmitting signal |
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Application publication date: 20090401 |