CN102438305A - Power control method and terminal - Google Patents
Power control method and terminal Download PDFInfo
- Publication number
- CN102438305A CN102438305A CN201010505986XA CN201010505986A CN102438305A CN 102438305 A CN102438305 A CN 102438305A CN 201010505986X A CN201010505986X A CN 201010505986XA CN 201010505986 A CN201010505986 A CN 201010505986A CN 102438305 A CN102438305 A CN 102438305A
- Authority
- CN
- China
- Prior art keywords
- power
- lead code
- terminal
- bring
- random access
- 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.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a power control method and a terminal, wherein the method comprises the following steps: the terminal determines to control the power of the lead code sent by the terminal; the terminal determines a power control mode of control; and the terminal performs power configuration on the preamble by using a power control mode. By the invention, the lead code detection performance is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of Poewr control method and terminal.
Background technology
Interpersonal communication (Human to Human abbreviates H2H as) is meant the people through operation of equipment is communicated, and the existing wireless communications technology is based on that the Communication Development of H2H gets up.And the communication between the machine to machine (Machine to Machine abbreviates M2M as), sensu lato definition is the application and the service of core, networking with the machine terminal intelligent interaction.It is based on the intelligence machine terminal, is the access means with multiple communication mode, is the informatization resolve scheme that the client provides, and is used to satisfy the information system requirement of client to aspects such as monitoring, command scheduling, data acquisition and measurements.
The development of wireless technology is the key factor of M2M market development; It has broken through the space-time restriction and the region obstacle of traditional communication mode; Make the enterprise and the public break away from the cable constraint, let the client more effectively control cost, reduce mounting cost and easy to use.In addition; Growing demand is promoting M2M and is constantly advancing; Constantly increase with information processing capability and the network bandwidth and conflictingly to be, the means that information is obtained lag far behind, and M2M has well satisfied this demand of people; Can monitor external environment condition in real time through this technology people, realize on a large scale, the information gathering of automation.Therefore, M2M can be applied to fields such as sector application, domestic. applications, individual's application.In the use of industry application for example: traffic monitoring, warning system, rescue at sea, automatic vending machine, driving paying etc.In the use of domestic application domain for example: automatic data logging, temperature control etc.In the use of individual application for example: life detection, far-end diagnosis etc.
The communication object of M2M is machine or Human-to-Machine.Data communication between one or more machines is defined as Machine Type communication (Machine Type Communication abbreviates MTC as), lessly in this case needs human-computer interaction.Participate in the machine of MTC, be defined as MTC equipment (MTC Device abbreviates MD as).MTC equipment is MTC user's terminal, can pass through public land mobile network (Public Land Mobile Network abbreviates PLMN as) network and MTC equipment, MTC server and communicate.
After introducing M2M and using, can carry out some optimizations to existing system, satisfying the M2M application demand, and the common UE in the existing system not exerted an influence according to its characteristics.Some distinguishing features that M2M uses comprise:
(1) the MTC number of devices is a lot; Estimation according to Vodafone; The MTC equipment of in the cell range in urban district, London, installing will reach 3000; If the initiation that so many MTC equipment is relatively concentrated inserts at random,, will bring very big impact to system as under situation such as fire, earthquake, reporting to the police simultaneously.
(2) transfer of data is regular, and each data quantity transmitted is little, and transmission intercal is big
(3) position of MTC equipment is more fixing, and a large amount of MTC equipment can not change the position after setting up, and this specific character is referred to as terminal location and fixes (no mobility); Or the terminal moves also and only in limited cell range, carries out, and this specific character is referred to as Hypomobility (low mobility), specifically regards as the cell range size of Hypomobility and is stipulated by operator.
In the Long Term Evolution (Long Term Evolution abbreviates LTE as), be shown in the following figure, mainly be divided into four steps based on the access process of competing at random:
Step 102: subscriber equipment (User Equipment abbreviates UE as) is selected a lead code (Preamble) sign indicating number at random, goes up at Physical Random Access Channel (Physical Random Channel abbreviates PRACH as) and sends.
Step 104: Node B (Node B) is after having detected the transmission of Preamble sign indicating number; Descending transmission accidental access response; Comprise following information in the accidental access response: the numbering of the Preamble sign indicating number of being received, the Preamble sign indicating number time corresponding adjustment amount of being received is the ascending resource position indication information of this terminal distribution; Interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Temporary Cell Radio Network Temporary Identifier abbreviates Temporary C-RNTI as) distributes.
Step 106:UE according to its indication, sends upstream message on the ascending resource that distributes after receiving accidental access response.At least should comprise in this upstream message: unique identification at this terminal (TMSI) or random identification (Random ID).
Step 108:Node B receives the upstream message of UE, and returns competition solution message to inserting successful UE.This competition solves in the message and should comprise at least: the unique ID (TMSI) or the Random ID that insert successful terminal.Wherein, UE comprises the steps: to the implementation that random access guiding (preamble) sends
Step 1: judge whether leading transmission number of times surpasses the maximum number of times of transmission of setting, if insert problem at random to one of upper strata indication.
Step 2: the target power value of leading reception is set, PREAMBLE_RECEIVED_TARGET_POWER=PREAMBLE_INITIAL_RECEIVED _ TARGET_POWER+ (PREAMBLE_TRANSMISSION_COUNTER-1) * POWER_RAMP_STEP.
Step 3: the opportunity of access at random that decision is next available.
Step 4: the indication physical layer uses selected PRACH resource to send a preamble, corresponding RA-RNTI, the target power that preamble index and preamble receive.
In existing system, UE carries out access attempts (RACH attempt) at random, if failure will increase power when launching accidental access signal once more subsequently.Power configuration is following in random access procedure:
PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTa rgetPower+DELTA_PREAMBLE+ (PREAMBLE_TRANSMISSION_COUNTER-1) * powerRampingStep; The step-length that power increased when wherein powerRampingStep represented that UE repeats to send the Preamble sign indicating number; Can be configured to { 0dB, 2dB, 4dB; 6dB}; PreambleInitialReceivedTargetPower is the Preamble sign indicating number received power that system passes through the base station expectation of broadcast transmission, and DELTA_PREAMBLE is a relevant power offset values of Premable sign indicating number form of choosing, and PREAMBLE_TRANSMISSION_COUNTER representes that UE sends the number of times of Preamble sign indicating number.If UE sends not response behind the Premable, at most can retry 200 times.
Along with the Preamble sign indicating number transmission number of times increase of UE, transmitting power promotes with step-length powerRampingStep.After introducing a large amount of MD be that monitoring is type professional because a lot of MTC use, maybe a lot of MD in reported data at the same time, a large amount of MD can occur and insert at random simultaneously, collision probability is very high.If a lot of in this case terminals (MD) increase power when (RACH reattempt) in random access procedure subsequently, will inevitably cause is that interference level promotes, and causes the detection performance of lead code poor.
Summary of the invention
Main purpose of the present invention is to provide a kind of Poewr control method and terminal; Solve above-mentioned correlation technique great amount of terminals lifting preamble power in random access procedure and cause the system interference level to promote, thereby cause the poor problem of detection performance of lead code.
To achieve these goals, according to an aspect of the present invention, a kind of Poewr control method is provided.
Poewr control method according to the present invention comprises: the terminal is confirmed the power of its transmission lead code is controlled; The power control mode of control is confirmed at the terminal; The terminal uses power control mode that lead code is carried out power configuration.
Further, the terminal is confirmed the power of the lead code of its transmission controlled and comprised: the service attribute of the business of its initiation of terminal judges is that the business of single business or its initiation is that predefined type is professional, confirms that then the power that it is sent lead code controls.
Further, the terminal is confirmed the power of the lead code of its transmission controlled and comprised: its terminal type of terminal judges is Machine Type communication MTC, the terminal of fixed-site or the terminal of Hypomobility, confirms that then the power that it is sent lead code controls.
Further; The terminal is confirmed the power of the lead code of its transmission controlled and comprised: the business of the business of its initiation of terminal judges allows access delay to surpass scheduled duration or the terminal access grade is lower than predetermine level, confirms the power of the lead code of its transmission is controlled.
Further, the terminal confirms that the power control mode of control is one of following mode or its combination: in random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
To achieve these goals, according to a further aspect in the invention, a kind of terminal is provided also.
Terminal according to the present invention comprises: first determination module is used for confirming power of the transmission lead code at its terminal, place is controlled; Second determination module is used for definite power control mode of controlling; Power control module is used to use power control mode that lead code is carried out power configuration.
Further, first determination module comprises: first judges submodule, and being used to judge its service attribute that belongs to terminal initiation the business that is single business or its initiation is that predefined type is professional; Submodule is confirmed in first power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
Further, first determination module comprises: second judges submodule, and being used to judge its terminal type that belongs to the terminal is Machine Type communication MTC, the terminal of fixed-site or the terminal of Hypomobility; Submodule is confirmed in second power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
Further, first determination module comprises: the 3rd judges submodule, is used to judge its service access time delay that belongs to the terminal and is lower than predetermine level above scheduled duration or its terminal access grade that belongs to the terminal; Submodule is confirmed in the 3rd power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
Further, second determination module confirms that the power control mode of control is one of following mode or its combination: in random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
Through the present invention; Adopt the terminal to confirm the power of its transmission lead code is controlled; Use its power control mode of confirming that this lead code is carried out power control then, avoided correlation technique in random access procedure, great amount of terminals promotes preamble power and causes the system interference level to promote; Thereby cause the poor problem of detection performance of lead code, and then reached the effect that improves the preamble detection performance.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 be according in the LTE system of correlation technique based on the flow chart of random access procedure of competition;
Fig. 2 is the flow chart according to the Poewr control method of the embodiment of the invention;
Fig. 3 is the structured flowchart according to the terminal of the embodiment of the invention;
Fig. 4 is the preferred construction block diagram according to the terminal of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Present embodiment provides a kind of Poewr control method, and Fig. 2 is the flow chart according to the Poewr control method of the embodiment of the invention, and is as shown in Figure 2, and this method comprises:
Step S202: the terminal is confirmed the preamble power of its transmission is controlled.
Step S204: the power control mode of above-mentioned control is confirmed at the terminal.
Step S206: the terminal uses power control mode that lead code is carried out power configuration.
Pass through above-mentioned steps; The terminal is confirmed the preamble power of its transmission is controlled; Use its power control mode of confirming that this lead code is carried out power control then, avoided correlation technique in random access procedure, great amount of terminals promotes preamble power and causes the system interference level to promote; Thereby cause the poor problem of detection performance of lead code, and then reached the effect that improves the preamble detection performance.
Preferably, one that faces step S202 under preferred embodiment describes.The service attribute of the business of its initiation of terminal judges is that the business of single business or its initiation is that predefined type is professional, then confirms the power of the lead code of its transmission is controlled.Because in real system; Single type of service terminal is arranged often in network, through the preferred embodiment, carries out power control to the terminal of single business; Carry out power control with initiating to insert most of terminal of calling out at random, improved the efficient of power control.
Preferably, one that faces step S202 under preferred embodiment describes.Its terminal type of terminal judges is Machine Type communication MTC, the terminal of fixed-site or the terminal of Hypomobility, then confirms the power of the lead code of its transmission is controlled.In real system; For arranging that in network a large amount of MTC accomplishes obtaining of bulk information,, carry out power control to the MTC terminal through the preferred embodiment; Carry out power control with initiating to insert most of terminal of calling out at random, improved the efficient of power control.
Preferably, one that faces step S202 under preferred embodiment describes.The business of the business of its initiation of terminal judges allows access delay to surpass scheduled duration or the terminal access grade is lower than predetermine level, confirms the power of its transmission lead code is controlled.Pass through the preferred embodiment; Surpassing scheduled duration or terminal access grade according to its service access time delay is lower than predetermine level and confirms the power of lead code is controlled; Power control is carried out at insensitive terminal of service delay and the lower terminal of priority, realized the fairness of system.
Preferably, the terminal confirms that the power control mode of control is one of following mode or its combination among the step S204: in random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.Through the multiple power control mode and the compound mode thereof of the preferred embodiment, the terminal can be adopted various power control mode neatly, has improved the flexibility of power control.
Need to prove that this preferred embodiment describes to inserting retransmission processes at random, in random access procedure; For example in the random access procedure first time; Above-mentioned power setting mode also can be adopted in the terminal, adopts this mode, can be so that the terminal is linked in the network more efficiently.
Preferred embodiment one
This preferred embodiment provides a kind of Poewr control method, and the preferred embodiment combines the foregoing description and preferred implementation wherein, and present embodiment has realized judging that according to service attribute power is carried out at the terminal to be controlled that this method comprises the steps:
Step 1, the service attribute of the business of its initiation of terminal judges are that the business of single business or its initiation is that predefined type is professional.
For example: the monitoring class in real system is professional, generally speaking, can predict that when the monitoring situation occurs, having a plurality of terminals initiates random access procedure simultaneously.
Step 2, terminal confirm that the power control mode of controlling is one of following or its combination.
In random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
Need to prove, in practical application, can be set in the power setting criterion of sending the preamble sign indicating number in the random access procedure in advance.
Preferred embodiment two
This preferred embodiment provides a kind of Poewr control method; The preferred embodiment combines the foregoing description and preferred implementation wherein; It is that MTC judges that power is carried out at the terminal to be controlled that present embodiment has been realized according to terminal type, and this method comprises the steps:
Step 1, its terminal type of terminal judges are the terminal of MTC, fixed-site or the terminal of Hypomobility.
Step 2, terminal confirm that the power control mode of controlling is one of following or its combination.
In random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
Need to prove, in practical application, can be set in the power setting criterion of sending the preamble sign indicating number in the random access procedure in advance.
Preferred embodiment three
This preferred embodiment provides a kind of Poewr control method; The preferred embodiment combines the foregoing description and preferred implementation wherein; Present embodiment has realized judging that according to the susceptibility of service delay and terminal access priority power is carried out at the terminal to be controlled that this method comprises the steps:
Step 1, the permission access delay of the business of its initiation of terminal judges surpasses scheduled duration or the terminal access grade is lower than predetermine level.
Step 2, terminal confirm that the power control mode of controlling is one of following or its combination.
In random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
Need to prove, in practical application, can be set in the power setting criterion of sending the preamble sign indicating number in the random access procedure in advance.
Present embodiment provides a kind of terminal, and Fig. 3 is the structured flowchart according to the terminal of the embodiment of the invention, and is as shown in Figure 3, and this terminal comprises: first determination module 32, second determination module 34 and power control module 36 are elaborated in the face of said structure down.
First determination module 32 is used for confirming power of the transmission lead code at its terminal, place is controlled; Second determination module 34 is connected to first determination module 32, is used for confirming that first determination module 32 confirms the power control mode of controlling; Power control module 36 is connected to second determination module 34, and the power control mode that is used to use second determination module 34 to confirm carries out power configuration to lead code.
Fig. 4 is the preferred construction block diagram according to the terminal of the embodiment of the invention, and is as shown in Figure 4, and first determination module 32 comprises: submodule 322 is confirmed in the first judgement submodule 321 and first power control; Submodule 324 is confirmed in the second judgement submodule 323 and second power control; Submodule 326 is confirmed in the 3rd judgement submodule 325 and the 3rd power control; Be elaborated in the face of said structure down.
First judges submodule 321, and being used to judge its service attribute that belongs to terminal initiation the business that is single business or its initiation is that predefined type is professional; Submodule 322 is confirmed in first power control; Be connected to first and judge submodule 321; Be used for first and judge that service attribute that submodule 321 judges that its terminal, place is initiated is that business that initiate at single when professional or its terminal, place is that predefined type is professional, confirms power that lead code is sent at its terminal, place is controlled.
Second judges submodule 323, and being used to judge its terminal type that belongs to the terminal is the terminal of Machine Type communication (MTC), fixed-site or the terminal of Hypomobility; Submodule 324 is confirmed in second power control; Be connected to second and judge submodule 323; Be used for second and judge that submodule 323 judges when the terminal type at its terminal, place is the terminal of terminal or Hypomobility of MTC, fixed-site, confirm power of the transmission lead code at its terminal, place is controlled.
The 3rd judges submodule 325, and the terminal access grade that the service access time delay of business that is used to judge the initiation at its terminal, place surpasses scheduled duration or its terminal, place is lower than predetermine level; Submodule 326 is confirmed in the 3rd power control; Be connected to the 3rd judge module 325; When being used for terminal access grade that the 3rd judge module 325 judges that the service access time delay of business of the initiation at its terminal, place surpasses scheduled duration or its terminal, place and being lower than predetermine level, power of the lead code of confirming its terminal, place is sent is controlled.
Preferably, second determination module 34 confirms that the power control mode of control is one of following mode or its combination:
In random access procedure, cancel bring to power; In random access procedure, whether the power of confirming next time to launch lead code at random bring to power; In random access procedure, be scheduled to the step-length bring to power according to first; The lead code of first pre-determined number in random access procedure is cancelled bring to power in retransmitting; During retransmitting, lead code next time after the lead code of second pre-determined number in random access procedure retransmits cancels bring to power; The lead code of the 3rd pre-determined number in random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second; During retransmitting, the lead code of the 4th pre-determined number in random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power; During retransmitting, the lead code of the 5th pre-determined number in random access procedure, in the follow-up lead code of the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power; In random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the lead code maximum power value; In random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of maximum power value and the 6th predetermined step-length.
Through above-mentioned preferred embodiment of the present invention, the terminal is confirmed the power of its transmission lead code is controlled, and uses its power control mode of confirming that this lead code is carried out power control then; Avoided correlation technique in random access procedure; Great amount of terminals promotes preamble power and causes the system interference level to promote, thereby causes the poor problem of detection performance of lead code, and then has reached the effect that improves the preamble detection performance; Simultaneously; Above-mentioned Poewr control method does not rely on the operation of network side fully, is independently carried out by the terminal, has improved the independence and the efficient of power control.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a Poewr control method is characterized in that, comprising:
The terminal is confirmed the power of its transmission lead code is controlled;
The power control mode of said control is confirmed at said terminal;
Said terminal uses said power control mode that said lead code is carried out power configuration.
2. method according to claim 1 is characterized in that, the terminal is confirmed the power of the lead code of its transmission controlled and comprised:
The service attribute of the business of said its initiation of terminal judges is that the business of single business or its initiation is that predefined type is professional, then confirms the power of its transmission lead code is controlled.
3. method according to claim 1 is characterized in that, the terminal is confirmed the power of the lead code of its transmission controlled and comprised:
Its terminal type of said terminal judges is Machine Type communication MTC, the terminal of fixed-site or the terminal of Hypomobility, then confirms the power of its transmission lead code is controlled.
4. method according to claim 1 is characterized in that, the terminal is confirmed the power of the lead code of its transmission controlled and comprised:
The business of the business of said its initiation of terminal judges allows access delay to surpass scheduled duration or the terminal access grade is lower than predetermine level, confirms the power of the lead code of its transmission is controlled.
5. according to each described method in the claim 1 to 4, it is characterized in that said terminal confirms that the power control mode of said control is one of following mode or its combination:
In random access procedure, cancel bring to power;
In random access procedure, whether the power of confirming next time to launch lead code at random bring to power;
In said random access procedure, be scheduled to the step-length bring to power according to first;
The lead code of first pre-determined number in said random access procedure is cancelled bring to power in retransmitting;
During retransmitting, lead code next time after the lead code of second pre-determined number in said random access procedure retransmits cancels bring to power;
The lead code of the 3rd pre-determined number in said random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of said the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second;
During retransmitting, the lead code of the 4th pre-determined number in said random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power;
During retransmitting, the lead code of the 5th pre-determined number in said random access procedure, in the follow-up lead code of said the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power;
In said random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is said lead code maximum power value;
In said random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of said maximum power value and the 6th predetermined step-length.
6. a terminal is characterized in that, comprising:
First determination module is used for confirming power of the transmission lead code at its terminal, place is controlled;
Second determination module is used for confirming the power control mode of said control;
Power control module is used to use said power control mode that said lead code is carried out power configuration.
7. terminal according to claim 6 is characterized in that, said first determination module comprises:
First judges submodule, and being used to judge its service attribute that belongs to terminal initiation the business that is single business or its initiation is that predefined type is professional;
Submodule is confirmed in first power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
8. terminal according to claim 6 is characterized in that, said first determination module comprises:
Second judges submodule, and being used to judge its terminal type that belongs to the terminal is Machine Type communication MTC, the terminal of fixed-site or the terminal of Hypomobility;
Submodule is confirmed in second power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
9. terminal according to claim 6 is characterized in that, said first determination module comprises:
The 3rd judges submodule, is used to judge its service access time delay that belongs to the terminal and is lower than predetermine level above scheduled duration or its terminal access grade that belongs to the terminal;
Submodule is confirmed in the 3rd power control, is used for confirming power of the transmission lead code at its terminal, place is controlled.
10. according to each described terminal in the claim 6 to 9, it is characterized in that said second determination module confirms that the power control mode of said control is one of following mode or its combination:
In random access procedure, cancel bring to power;
In random access procedure, whether the power of confirming next time to launch lead code at random bring to power;
In said random access procedure, be scheduled to the step-length bring to power according to first;
The lead code of first pre-determined number in said random access procedure is cancelled bring to power in retransmitting;
During retransmitting, lead code next time after the lead code of second pre-determined number in said random access procedure retransmits cancels bring to power;
The lead code of the 3rd pre-determined number in said random access procedure is cancelled bring to power in retransmitting, and in the follow-up lead code of said the 3rd pre-determined number retransmits, is scheduled to the step-length bring to power according to second;
During retransmitting, the lead code of the 4th pre-determined number in said random access procedure, cancels bring to power during the lead code next time after the lead code of the 4th pre-determined number retransmits retransmits by the 3rd predetermined step-length bring to power;
During retransmitting, the lead code of the 5th pre-determined number in said random access procedure, in the follow-up lead code of said the 5th pre-determined number retransmits, presses the 5th predetermined step-length bring to power by the 4th predetermined step-length bring to power;
In said random access procedure, if preamble power reaches preset lead code maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is said lead code maximum power value;
In said random access procedure, if preamble power reaches preset maximum power value, the power that sends lead code in then definite lead code retransmission processes next time is the poor of said maximum power value and the 6th predetermined step-length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505986.XA CN102438305B (en) | 2010-09-29 | 2010-09-29 | Power control method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010505986.XA CN102438305B (en) | 2010-09-29 | 2010-09-29 | Power control method and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102438305A true CN102438305A (en) | 2012-05-02 |
| CN102438305B CN102438305B (en) | 2014-12-10 |
Family
ID=45986126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010505986.XA Expired - Fee Related CN102438305B (en) | 2010-09-29 | 2010-09-29 | Power control method and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102438305B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017215437A1 (en) * | 2016-06-12 | 2017-12-21 | 电信科学技术研究院 | Method and device for use in random access |
| CN108093490A (en) * | 2017-12-26 | 2018-05-29 | 广东欧珀移动通信有限公司 | Network switching control method and device |
| CN108112065A (en) * | 2017-05-05 | 2018-06-01 | 中兴通讯股份有限公司 | The definite of transmit power, signaling configuration method and device, terminal, base station |
| CN108112089A (en) * | 2018-01-05 | 2018-06-01 | 北京小米移动软件有限公司 | Accidental access method, device and non-transitorycomputer readable storage medium |
| CN108235392A (en) * | 2017-12-26 | 2018-06-29 | 广东欧珀移动通信有限公司 | Network switching control method and device |
| WO2018133590A1 (en) * | 2017-01-20 | 2018-07-26 | 中兴通讯股份有限公司 | Uplink data transmission method and apparatus and storage medium |
| CN108886752A (en) * | 2016-04-20 | 2018-11-23 | 夏普株式会社 | Terminal installation, base station apparatus and communication means |
| CN109151980A (en) * | 2017-06-16 | 2019-01-04 | 维沃移动通信有限公司 | A kind of random access procedure lead code sends the control method and terminal of power |
| WO2019006582A1 (en) * | 2017-07-03 | 2019-01-10 | Qualcomm Incorporated | System and method for latency reduction with delay-sensitive traffic |
| CN110392442A (en) * | 2018-04-18 | 2019-10-29 | 华为技术有限公司 | Communication method and device |
| CN110536403A (en) * | 2019-04-30 | 2019-12-03 | 中兴通讯股份有限公司 | Power determining method, device, terminal and storage medium |
| WO2020082215A1 (en) * | 2018-10-22 | 2020-04-30 | Oppo广东移动通信有限公司 | Method for determining transmit power for preamble sequence and communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549475A (en) * | 2003-05-12 | 2004-11-24 | 北京三星通信技术研究有限公司 | Fast random switching in method used for upward special channel enhancement of WCDMA system |
| WO2009088338A1 (en) * | 2008-01-11 | 2009-07-16 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and devices for random access power control in a communications network |
| CN101600246A (en) * | 2008-06-04 | 2009-12-09 | 株式会社Ntt都科摩 | Mobile communication terminal and transmission power determining method |
-
2010
- 2010-09-29 CN CN201010505986.XA patent/CN102438305B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549475A (en) * | 2003-05-12 | 2004-11-24 | 北京三星通信技术研究有限公司 | Fast random switching in method used for upward special channel enhancement of WCDMA system |
| WO2009088338A1 (en) * | 2008-01-11 | 2009-07-16 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and devices for random access power control in a communications network |
| CN101600246A (en) * | 2008-06-04 | 2009-12-09 | 株式会社Ntt都科摩 | Mobile communication terminal and transmission power determining method |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886752A (en) * | 2016-04-20 | 2018-11-23 | 夏普株式会社 | Terminal installation, base station apparatus and communication means |
| CN108886752B (en) * | 2016-04-20 | 2022-02-01 | 夏普株式会社 | Terminal device, base station device, and communication method |
| WO2017215437A1 (en) * | 2016-06-12 | 2017-12-21 | 电信科学技术研究院 | Method and device for use in random access |
| US11337078B2 (en) | 2017-01-20 | 2022-05-17 | Xi'an Zhongxing New Software Co., Ltd. | Uplink data transmission method and apparatus and storage medium |
| WO2018133590A1 (en) * | 2017-01-20 | 2018-07-26 | 中兴通讯股份有限公司 | Uplink data transmission method and apparatus and storage medium |
| CN108617001A (en) * | 2017-01-20 | 2018-10-02 | 中兴通讯股份有限公司 | uplink data transmission method and device |
| CN108617001B (en) * | 2017-01-20 | 2022-11-18 | 中兴通讯股份有限公司 | Uplink data transmission method and device |
| CN108112065B (en) * | 2017-05-05 | 2023-09-26 | 中兴通讯股份有限公司 | Determination of transmit power, signaling configuration method and device, terminal, base station |
| CN108112065A (en) * | 2017-05-05 | 2018-06-01 | 中兴通讯股份有限公司 | The definite of transmit power, signaling configuration method and device, terminal, base station |
| CN109151980A (en) * | 2017-06-16 | 2019-01-04 | 维沃移动通信有限公司 | A kind of random access procedure lead code sends the control method and terminal of power |
| WO2019006582A1 (en) * | 2017-07-03 | 2019-01-10 | Qualcomm Incorporated | System and method for latency reduction with delay-sensitive traffic |
| CN108093490A (en) * | 2017-12-26 | 2018-05-29 | 广东欧珀移动通信有限公司 | Network switching control method and device |
| CN108235392A (en) * | 2017-12-26 | 2018-06-29 | 广东欧珀移动通信有限公司 | Network switching control method and device |
| CN108093490B (en) * | 2017-12-26 | 2020-09-22 | Oppo广东移动通信有限公司 | Network switching control method and device |
| CN108112089A (en) * | 2018-01-05 | 2018-06-01 | 北京小米移动软件有限公司 | Accidental access method, device and non-transitorycomputer readable storage medium |
| CN110392442B (en) * | 2018-04-18 | 2022-06-14 | 华为技术有限公司 | Communication method and device |
| CN110392442A (en) * | 2018-04-18 | 2019-10-29 | 华为技术有限公司 | Communication method and device |
| WO2020082215A1 (en) * | 2018-10-22 | 2020-04-30 | Oppo广东移动通信有限公司 | Method for determining transmit power for preamble sequence and communication device |
| CN110536403A (en) * | 2019-04-30 | 2019-12-03 | 中兴通讯股份有限公司 | Power determining method, device, terminal and storage medium |
| CN110536403B (en) * | 2019-04-30 | 2023-11-14 | 中兴通讯股份有限公司 | Power determination method, device, terminal and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102438305B (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102438305B (en) | Power control method and terminal | |
| CN102573097B (en) | Method for random access and terminal | |
| CN102438306A (en) | Power control method, network side equipment and terminal | |
| EP3098994B1 (en) | Method of handling coverage enhancement in wireless communication system | |
| CN102291836B (en) | A kind of random access control method and system | |
| CN102238752B (en) | Random access control method of machine type communication (MTC) equipment and MTC equipment | |
| CN102548012B (en) | A kind of accidental access method and terminal | |
| US8462722B2 (en) | Access control for machine-type communication devices | |
| KR101529806B1 (en) | Terminal access method and device | |
| EP2749098B1 (en) | Methods and station for managing contention in a wireless communications system | |
| CN102740374B (en) | Connection control method and system | |
| CN102291846B (en) | A kind of accidental access method and realize the system of Stochastic accessing | |
| CN102724746A (en) | Control method, determination method and system for preamble code transmitting power in random access process | |
| CN102740492B (en) | Random access control method and system | |
| CN101889414B (en) | Mesh deterministic access (mda) procedure in wireless mesh network and wireless device supporting the same | |
| CN102595555B (en) | Control terminal initiates the method and system of business | |
| CN103650374A (en) | Access control method and apparatus of ue | |
| CN104812084A (en) | Configuration information sending, obtaining method and accessing method, communication node and system | |
| CN102740493A (en) | Method and system for adjusting terminal access control | |
| EP2943016A1 (en) | Coverage extension in wireless communication | |
| CN101801075A (en) | Be used to adjust the method and apparatus of the through-put power of signal | |
| CN105027651A (en) | Uplink carrier selection for reduced bandwidth machine type communication devices | |
| EP3613252B1 (en) | A random access method and wireless device | |
| CN102469548A (en) | Access handling method, device and system | |
| CN102469555A (en) | Method and system for accessing terminal to network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |