CN104349439B - A kind of method for adjusting ascending power - Google Patents

A kind of method for adjusting ascending power Download PDF

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Publication number
CN104349439B
CN104349439B CN201310328767.2A CN201310328767A CN104349439B CN 104349439 B CN104349439 B CN 104349439B CN 201310328767 A CN201310328767 A CN 201310328767A CN 104349439 B CN104349439 B CN 104349439B
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China
Prior art keywords
command word
tpc command
dci3
power
ascending
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Expired - Fee Related
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CN201310328767.2A
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Chinese (zh)
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CN104349439A (en
Inventor
董敏
魏燚潍
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Potevio Institute of Technology Co Ltd
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Potevio Institute of Technology Co Ltd
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Priority to CN201310328767.2A priority Critical patent/CN104349439B/en
Publication of CN104349439A publication Critical patent/CN104349439A/en
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    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A kind of method for adjusting ascending power, methods described include：The each user UE reported according to up channel link change determines the user profile for including Power Control TPC command word, and when no scheduling control information issues, the user profile is added into command word TPC3/3A queues；TPC3/3A queue not empties, bag TPC command word is organized on the physical downlink control channel PDCCH surplus resources for issuing power team control channel DCI3/3A；TPC command word adjustment ascending powers of the UE in DCI3/3A.After the embodiment of the present invention, the ascending power of different business is adjusted using identical Poewr control method, avoids the waste of channel resource.

Description

A kind of method for adjusting ascending power
Technical field
The application is related to communication technical field, more particularly, to a kind of method for adjusting ascending power.
Background technology
Physical Uplink Shared Channel（PUSCH）It is mainly used in transmitting upstream data, Physical Downlink Shared Channel（PDSCH）It is main It is used to transmit downlink data.Physical Downlink Control Channel（PDCCH）Bearing downlink control information（DCI）, different controls letters Breath is sent in different DCI formats.
Such as：The form that uplink scheduling control information uses is DCI0/DCI4；The form that descending scheduling uses is DCI1/ DCI1A/DCI2 etc..TPC command word is included in schedules control channels, terminal transmit power can be controlled.Power team control channel （DCI3/3A）It is one kind in down control channel, the special transmit power for controlling terminal, can be right using DCI3/3A forms One group of user carries out Power Control, and once most multipair 15 users carry out uplink power control to DCI3, DCI3A once most multipair 30 Individual user carries out uplink power control.
Semi-persistent scheduling can be divided into according to the different corresponding data services of scheduling mode（SPS）Business and dynamic dispatching （DS）Business, SPS business are configured the cycle for sending packet by high-level signaling, then follow-up scheduling meeting is according to control data cycle bag Transmission, suitable for the demand of small data quantity.DS business then can be according to the complete dynamic allocation of resources of user's actual conditions.
Upon activation, no longer display is indicated terminal SPS business by control channel, according to the week being semi-statically configured Phase is passed in the fixed enterprising line number of running time-frequency resource, and this feature is determined if carrying out Power Control to the channel for carrying SPS business If, it can only be controlled by DCI3/3A.And DS business then necessarily has schedules control channels and UE is indicated just to enter Line number passes（Except non-self-adapting retransmits）, so schedules control channels can be utilized, DCI3/3A can also be utilized to carrying DS The channel of business carries out Power Control.So, it is necessarily required to use different Power Controls for the two different business.
In summary, it is also different to there is different business its power control mode in the prior art, so as to cause channel to provide The waste in source.
The content of the invention
The embodiment of the present invention proposes a kind of method for adjusting ascending power, is adjusted using identical Poewr control method different Business ascending power, avoid the waste of channel resource.
The technical scheme of the embodiment of the present invention is as follows：
A kind of method for adjusting ascending power, methods described include：
The each user UE reported according to up channel link change determines the user for including Power Control TPC command word Information, when no scheduling control information issues, the user profile is added into command word TPC3/3A queues；
TPC3/3A queue not empties, it is remaining in the physical downlink control channel PDCCH for issuing power team control channel DCI3/3A Bag TPC command word is organized in resource；
TPC command word adjustment ascending powers of the UE in DCI3/3A.
Methods described further comprises：
When thering is the scheduling control information to issue, then by TPC command word group bag into scheduling DCI；
TPC3/3A queue not empties, bag TPC command word is organized on the PDCCH surplus resources for issue DCI3/3A；
TPC command word adjustment ascending powers of the UE in scheduling control information.
The user profile for determining to include Power Control TPC command word according to UE link change includes：
Determine that the TPC command word after renewal needs to send according to UE link change, the TPC command word is added into user In information.
It is described to determine that the TPC command word after renewal needs transmission to include according to UE link change：
When determining that the TPC command word after renewal needs to send according to UE link change, renewal flag bit is arranged to TRUE。
The user profile for determining to include Power Control TPC command word according to UE link change includes：
The user profile for including Power Control TPC command word is determined according to UE received signal to noise ratio.
Include before determining to include the user profile of TPC command word according to UE link change：Ascending power is static, just Beginningization TPC command word is arranged to 1；
Methods described further comprises：When thering is the scheduling authorization information to issue, filled out in scheduling authorization Downlink Control Information DCI Enter TPC command word；The follow-up TPC command word sent without needs, then it is FALSE to update flag bit.
The bag TPC command word of being organized on the PDCCH surplus resources for issue DCI3/3A includes：
Bag TPC command word, the follow-up TPC command sent without needs are organized on the PDCCH surplus resources for issue DCI3/3A Word, renewal flag bit are FALSE.
As can be seen that each UE reported in embodiments of the present invention according to up channel chain from above-mentioned technical proposal Road change determines the user profile for including TPC command word, and when no scheduling control information issues, the user profile is added TPC3/3A queues；TPC3/3A queue not empties, bag TPC command word is organized on the PDCCH surplus resources for issue DCI3/3A；It is described TPC command word adjustment ascending powers of the UE in DCI3/3A.Making full use of DCI3/3A PDCCH surplus resources to send includes The TPC3/3A queues of TPC command word.Identical Poewr control method can be utilized to adjust the ascending power of different business, kept away Exempt from the waste of channel resource.
Brief description of the drawings
Fig. 1 is the method flow schematic diagram of adjustment ascending power；
Fig. 2 is the implementation process schematic diagram of adjustment ascending power.
Embodiment
It must be more clearly understood to express the object, technical solutions and advantages of the present invention, below in conjunction with the accompanying drawings and specifically The present invention is further described in more detail for embodiment.
In embodiments of the present invention, whether SPS business or DS business can believe the user including TPC command word Breath pass through TPC3/3A queues, and transmission is to UE after group bag on DCI3/3A PDCCH surplus resources, and UE is further according to receiving TPC command word adjusts ascending power.Identical Poewr control method can be utilized to adjust the ascending power of different business, avoided The waste of channel resource.So that the uplink transmission power of terminal preferably adapts to link condition, overall performance of network is lifted.
It is the method flow schematic diagram for adjusting ascending power referring to accompanying drawing 1, specifically includes following steps：
101st, each UE reported according to up channel link change determines the user profile for including TPC command word, nothing When scheduling control information issues, the user profile is added into TPC3/3A queues.
The UE reported on the uplink channel has multiple, it is necessary to check each UE link change successively, can determine that TPC is ordered Make word.In the present invention, UE link change is determined by the UE of eNodeB measurements received signal to noise ratio, naturally it is also possible to by Other parameters of the prior art determine.TPC3/3A queues are that have newer command word to need to be sent to the use of terminal by DCI3/3A Family queue, ID and user's total number are stored in TPC3/3A queues, it is updated in computer technology similar with occupation mode Queue.
102nd, TPC3/3A queue not empties, bag TPC command word is organized on the PDCCH surplus resources for issue DCI3/3A.
In the present invention, configuration scheduling control DCI priority ratio DCI3/3A priority is high.Therefore, command word is generated When the TPC command word one that cannot be guaranteed to be carried on DCI3/3A surely send, therefore will want by DCI3/3A transmissions User related information be first stored in TPC3/3A queues.PDCCH resource is preferentially sent to scheduling control information, is being sent Bag TPC command word is organized on DCI3/3A PDCCH surplus resources, it is possible to which ensureing to send in time includes TPC command word.
103rd, TPC command word adjustment ascending powers of the UE in DCI3/3A.
TPC command word adjustment ascending powers of each UE that up channel reports in DCI3/3A.So that terminal is upper Row transmit power preferably adapts to link condition, lifts overall performance of network.
It is the implementation process schematic diagram for adjusting ascending power referring to accompanying drawing 2, the specific of adjustment ascending power is described in detail Step is realized, is specifically included：
201st, start.
202nd, ascending power is static, and initialization TPC command word is arranged to 1.TPC command word is used for instruction terminal adjustment work( Rate.TPC command word has rising, declines or static three kinds.Wherein, TPC command word is arranged to 1, and its meaning is static.
203rd, judge whether to obtain the received signal to noise ratio of this channel of UE.If obtaining the received signal to noise ratio of this channel of UE, hold Row 204；Otherwise 205 are performed.
204th, it is TRUE to calculate TPC command word by known power control relevant parameter and update flag bit, its calculating process It is existing.
Renewal flag bit is TRUE, indicates that the command word that new needs are sent produces.Renewal flag bit is FALSE, table Show and sent TPC command word by DCI, follow-up no TPC command word needs to send.
Renewal flag bit is to prevent that terminal is repeated to have sent out command word and increased mark.For example, lead to Cross DCI0 and be transmitted across TPC command word, the TPC command word of this user is then not sent further on during subsequent treatment DCI3/3A.
205th, determine whether that scheduling control information issues according to prior art.There is scheduling control information to issue, be, hold Row 206；Otherwise 208 are performed.The information that scheduling control information just issues when transmitting data.
206th, TPC command word is inserted in scheduling authorization DCI information.UE ascending power is adjusted by TPC command word. DCI group packet mode is that agreement provides, and the 2bit wherein on fixed position is TPC command word.UE understands it according to agreement In implication, can the transmit power of oneself be adjusted according to TPC command word.
207th, time delay TPC processing of eating dishes without rice or wine is carried out, is 1 by the TPC command word set in internal memory, renewal flag bit is FALSE.
Due to having sent out TPC command word by previous step, but can not be calculated due to not obtaining new measured value also Go out the TPC command word updated, it is therefore desirable to send the TPC command word sent during TPC command word and be equal to 1.
208th, determine whether that new TPC is produced（Flag bit is TRUE and TPC is not equal to 1）, it is to perform 209, otherwise Perform 210.
209th, TPC command word is added in user profile, the user profile is then added into TPC3/3A queues.
210th, judge whether the user that all up channels report all handles completion, completion processing then performs 211, otherwise Perform 203.
211st, TPC3/3A queue not empties, then it is hopeful to send the user of TPC command by DCI3/3A in queue.TPC3/ The user in need for sending TPC command, then perform 212 in 3A queues；Otherwise 216 are performed.
212nd, determine whether to issue DCI3/3A PDCCH surplus resources according to prior art.Have and issue DCI3/3A's PDCCH surplus resources, then perform 213；Otherwise, 215 are performed.
213rd, according to existing team control channel rules group bag TPC command word.According to the DCI3/3A arranged in agreement rule Pack with the TPC control information of all users in group.Group bag DCI3/3A in addition is needed if user is not belonging to group.UE will According to agreement parsing to one's name where group DCI3/3A, judge wherein whether it is in need oneself response TPC command word.
214th, time delay TPC processing of eating dishes without rice or wine is carried out, is 1 by the TPC command word set in internal memory, renewal flag bit is FALSE.
215th, determine whether last user in queue, be to perform 216；Otherwise, 212 are performed.
216th, terminate.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in Within the scope of.

Claims (6)

  1. A kind of 1. method for adjusting ascending power, it is characterised in that methods described includes：
    The each user UE reported according to up channel link change determines the user's letter for including Power Control TPC command word Breath, when no scheduling control information issues, the user profile is added into command word TPC3/3A queues；
    TPC3/3A queue not empties, issuing power team control channel DCI3/3A physical downlink control channel PDCCH surplus resources Upper group of bag TPC command word；
    TPC command word adjustment ascending powers of the UE in DCI3/3A；
    Wherein, methods described further comprises：
    When thering is the scheduling control information to issue, then by TPC command word group bag into scheduling DCI；
    TPC3/3A queue not empties, bag TPC command word is organized on the PDCCH surplus resources for issue DCI3/3A；
    TPC command word adjustment ascending powers of the UE in scheduling control information.
  2. 2. the method for ascending power is adjusted according to claim 1, it is characterised in that described to be determined according to UE link change User profile including Power Control TPC command word includes：
    Determine that the TPC command word after renewal needs to send according to UE link change, the TPC command word is added into user profile In.
  3. 3. the method for ascending power is adjusted according to claim 2, it is characterised in that described to be determined according to UE link change TPC command word after renewal needs transmission to include：
    When determining that the TPC command word after renewal needs to send according to UE link change, renewal flag bit is arranged to TRUE.
  4. 4. the method for ascending power is adjusted according to claim 1, it is characterised in that described to be determined according to UE link change User profile including Power Control TPC command word includes：
    The user profile for including Power Control TPC command word is determined according to UE received signal to noise ratio.
  5. 5. the method for ascending power is adjusted according to claim 1, it is characterised in that determining to wrap according to UE link change Include before including the user profile of TPC command word：Ascending power is static, and initialization TPC command word is arranged to 1；
    Methods described further comprises：When thering is the scheduling authorization information to issue, inserted in scheduling authorization Downlink Control Information DCI TPC command word；It is determined that the follow-up TPC command word sent without needs, then it is FALSE to update flag bit.
  6. 6. the method for ascending power is adjusted according to claim 1, it is characterised in that described to issue DCI3/3A PDCCH Bag TPC command word is organized on surplus resources to be included：
    Bag TPC command word is organized on the PDCCH surplus resources for issue DCI3/3A, it is determined that the follow-up TPC command sent without needs Word, renewal flag bit are FALSE.
CN201310328767.2A 2013-07-31 2013-07-31 A kind of method for adjusting ascending power Expired - Fee Related CN104349439B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10659207B2 (en) * 2017-05-15 2020-05-19 Qualcomm Incorporated Uplink power control in new radio (NR)
CN108551687B (en) * 2018-07-19 2021-05-18 武汉虹信科技发展有限责任公司 Uplink power control method for LTE communication system
CN112752333B (en) * 2019-10-31 2024-03-29 中国电信股份有限公司 Uplink channel power control method, device, terminal and storage medium
WO2022198419A1 (en) 2021-03-22 2022-09-29 Oppo广东移动通信有限公司 Power control method and apparatus

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CN101742626A (en) * 2010-01-14 2010-06-16 华为技术有限公司 Power regulating method, power regulating system, base station and user equipment
CN102006657A (en) * 2009-08-31 2011-04-06 华为技术有限公司 Uplink power control method, device and terminal
EP2525611A2 (en) * 2010-01-13 2012-11-21 LG Electronics Inc. User equipment that transmits an uplink signal in a multi-carrier supporting mobile communication system and a method therefor
GB2492600A (en) * 2011-07-08 2013-01-09 Renesas Mobile Corp Transmission power control based on currently used bandwidth and comparison to power limits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102006657A (en) * 2009-08-31 2011-04-06 华为技术有限公司 Uplink power control method, device and terminal
EP2525611A2 (en) * 2010-01-13 2012-11-21 LG Electronics Inc. User equipment that transmits an uplink signal in a multi-carrier supporting mobile communication system and a method therefor
CN101742626A (en) * 2010-01-14 2010-06-16 华为技术有限公司 Power regulating method, power regulating system, base station and user equipment
GB2492600A (en) * 2011-07-08 2013-01-09 Renesas Mobile Corp Transmission power control based on currently used bandwidth and comparison to power limits

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