CN109151980A - A kind of random access procedure lead code sends the control method and terminal of power - Google Patents
A kind of random access procedure lead code sends the control method and terminal of power Download PDFInfo
- Publication number
- CN109151980A CN109151980A CN201710459785.2A CN201710459785A CN109151980A CN 109151980 A CN109151980 A CN 109151980A CN 201710459785 A CN201710459785 A CN 201710459785A CN 109151980 A CN109151980 A CN 109151980A
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- Prior art keywords
- random access
- lead code
- terminal
- power
- counter
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention provides control methods and terminal that a kind of random access procedure lead code sends power, are related to field of communication technology.The control method of random access procedure lead code transmission power, comprising: detection terminal sends the transmission power of lead code；After the transmission power that terminal sends lead code is equal to maximum transmission power, climbs to the medium access control MAC layer indicated horsepower of terminal and suspend instruction and/or determine whether random access fails with the presence or absence of problem or random access according to the counter of setting.Above scheme, by being defined to the specific communication behavior of terminal, ensure that the complete of communication process with this, ensure that the reliability of communication after lead code re-transmission power reaches maximum value.
Description
Technical field
The present invention relates to field of communication technology, in particular to a kind of random access procedure lead code sends the controlling party of power
Method and terminal.
Background technique
RACH (Random Access Channel) i.e. random access channel, is a kind of uplink transport channel.RACH is whole
It is received in a cell, is usually used in PAGING (paging) and answers and MS caller/login access etc..
Random access trigger condition includes: 1, is initially accessed in RRC_IDLE；2, it is initially accessed when Radio Link disconnects；
3, random access is needed when switching；4, when needing random access procedure under RRC_CONNECTED state, downlink data is received, such as
When uplink sync status is " asynchronous "；5, when needing random access procedure under RRC_CONNECTED state, line number is received
According to when being " asynchronous " such as uplink sync status or can be used for dispatching without PUCCH resource.
Random access (Random Access) process includes non-competing (Contention-free/Non-contention-
Based) and based on the random access procedure for competing (Contention-based).Wherein,
Non-competing random access procedure includes two steps:
1, terminal sends random access lead code (preamble) to base station, also known as message one (msg.1)；
2, terminal receives the random access response (RAR) of base station feedback, also known as message two (msg.2)；
Random access procedure competition-based the following steps are included:
1, terminal sends random access lead code (preamble) to base station, also known as message one (msg.1)；
2, terminal receives the random access response (RAR) of base station feedback, also known as message two (msg.2)；
3, terminal sends contention resolved request, also known as message three (msg.3) to base station；
4, terminal receives the contention resolved of base station as a result, also known as message four (msg.4).
In 5G NR system, at present in the design of random access, each re-transmission for random access lead code is supported
Power climbs (power ramping).
In LTE (long term evolution) system, using PREAMBLE_TRANSMISSION_COUNTER, lead code retransmits meter
Number devices to count the number of lead code re-transmission, and climb for power.
When each random access procedure initialization, resetting this counter is 1.
Suspend instruction when being not properly received msg.2 i.e. RAR and not receiving the power that bottom physical layer is sent and climb
(power ramping suspension), then counter adds 1；
When contention resolved failure (Contention Resolution Fail), and the transmission of bottom physical layer is not received
Power climb pause instruction (power ramping suspension), then counter adds 1.
In above process, if counter reaches preamble (lead code) maximum number of times of transmission+1, MAC layer instruction
Upper layer random access problems.
The power for sending Preamble every time is calculated as follows according to the step-length that this counter and power climb:
PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTa rgetPower+
DELTA_PREAMBLE+(PREAMBLE_TRANSMISSION_COUNTER–1)*powerRampingStep；
Wherein, PREAMBLE_RECEIVED_TARGET_POWER indicates target power value,
PreambleInitialReceivedTargetPower indicates original power value, and DELTA_PREAMBLE indicates default and fixes
Value, PREAMBLE_TRANSMISSION_COUNTER indicate the value of current lead code retransmission counter,
PowerRampingStep indicates that power climbs step-length.
In LTE, using same counter carry out power climb counting and lead code the number of transmissions counting, i.e., it is leading
Code retransmission counter had both been used for power and had climbed the counting of number, was also used for the statistics of lead code number of retransmissions.When lead code retransmits
Counter then indicates upper layer random access problems or random access failure after reaching maximum times.
Since current conclusion is: if terminal executes beam switchover, the counting that power climbs being remained unchanged；Such as
Fruit terminal does not change wave beam in each re-transmission, then the counting that power climbs will increase.
It is possible that terminal has just reached emission maximum function in lead code retransmission counter and not up to maximum times
Rate needs to define the behavior of terminal at this time.
Summary of the invention
The embodiment of the present invention provides the control method and terminal of a kind of random access procedure lead code transmission power, to solve
After not reaching maximum value to lead code re-transmission power in existing NR system, the behavior of terminal is defined, is caused
The problem of communication process is imperfect, not can guarantee communication reliability.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of random access procedure lead code and sends power
Control method, comprising:
Detect the transmission power that terminal sends lead code；
After the transmission power that terminal sends lead code is equal to maximum transmission power, to the medium access control MAC of terminal
Layer indicated horsepower, which climbs, to be suspended instruction and/or determines random access with the presence or absence of problem or random access according to the counter of setting
Whether fail.
The embodiment of the present invention also provides a kind of terminal, comprising:
Detection module sends the transmission power of lead code for detecting terminal；
Processing module, after the transmission power for sending lead code when terminal is equal to maximum transmission power, to Jie of terminal
Matter access control MAC layer indicated horsepower, which climbs, to be suspended instruction and/or determines that random access whether there is according to the counter of setting
Whether problem or random access fail.
The embodiment of the present invention also provides a kind of terminal, comprising: memory, processor and storage on a memory and can located
The computer program run on reason device, computer program random access procedure above-mentioned when being executed by the processor are leading
Code sends the step of control method of power.
The embodiment of the present invention also provides a kind of computer readable storage medium, wherein the computer readable storage medium
On be stored with computer program, the computer program realizes above-mentioned random access procedure lead code hair when being executed by processor
The step of sending the control method of power.
The beneficial effects of the present invention are:
Above scheme, by determining the specific communication behavior of terminal after lead code re-transmission power reaches maximum value
Justice ensure that the complete of communication process with this, ensure that the reliability of communication.
Detailed description of the invention
Fig. 1 shows the process signals that the random access procedure lead code of the embodiment of the present invention sends the control method of power
Figure；
Fig. 2 indicates the module diagram of the terminal of the embodiment of the present invention；
Fig. 3 indicates the structural block diagram of the terminal of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in detail.
After the present invention is not for maximum value is reached to lead code re-transmission power in existing NR system, to the row of terminal
The problem of to be defined, causing communication process imperfect, not can guarantee communication reliability, before a kind of random access procedure is provided
The control method and terminal of leading code transmission power.
As shown in Figure 1, the random access procedure lead code of the embodiment of the present invention sends the control method of power, comprising:
Step 101, detection terminal sends the transmission power of lead code；
It should be noted that the present embodiment is mainly the monitoring that lead code (preamble) retransmits power, reach in power
It after maximum value, performs corresponding processing, therefore, first choice needs to carry out the detection of lead code transmission power.
Step 102, the medium access after transmission power that terminal sends lead code is equal to maximum transmission power, to terminal
Control MAC layer indicated horsepower climb pause instruction and/or according to the counter of setting determine random access with the presence or absence of problem or
Whether random access fails.
It should be noted that when transmission power reaches maximum transmission power or other physical layer trigger conditions, such as
When temporarily ceasing (Drop) some random access procedure (when this scene is likely to occur in random access collision), terminal can be given
A power, which climbs, out suspends instruction (power ramping suspension), and indicates MAC layer by physical layer, terminal
MAC layer is climbed after pause instruction receiving the power that physical layer provides, and is preset in number of retransmissions in preset time or lead code
Failed random access, then (random access loses for MAC layer instruction upper layer random access problems or the failure of instruction random access procedure
Lose), i.e., after transmission power reaches maximum transmission power, terminal be not still successfully accessed, then shows that random access exists and ask
Topic, then by MAC layer by this situation report to upper layer, upper layer here refer to be located at physical layer on radio link layer (RLC
Layer), rrc layer (radio resource control layer, Radio Resource Control), network layer, application layer etc..
Specifically, determine that random access whether there is the mode of problem according to the counter of setting, comprising:
After the transmission power that terminal sends lead code is equal to maximum transmission power, when subsequent lead code retransmits, in terminal
The power of setting climb counter (POWER_RAMPING_COUNTER) pause count.
When i.e. transmission power reaches maximum transmission power, power climbs, and counter is subsequent not to be carried out plus 1 operation, when not receiving
Fail (Contention to random access response (RAR, i.e., message two (msg.2)) in random access or contention resolved
Resolution Fail) when, power climbs counter also without adding 1 operation.
It should be noted that when terminal carries out always lead code re-transmission according to maximum transmission power, and terminal itself determines
The switching of wave beam whether is carried out, preamble transmissions counter (PREAMBLE_TRANSMISSION_ can be used in such terminal
COUNTER the counting retransmitted for the lead code of terminal) is carried out, and uses wave beam lead code retransmission counter (PREAMBLE_
TRANSMISSION_COUNTER_BEAM the counting retransmitted for the lead code of wave beam) is carried out, at this point, if being arranged in terminal
Lead code retransmission counter reaches at least one being arranged in the first default maximum number of times of transmission Max1 or Max1+1 or terminal
Wave beam lead code retransmission counter counts (i.e. all corresponding wave beam lead code retransmission counter countings of wave beam or several wave beams
Corresponding wave beam lead code retransmission counter counts) the second default maximum number of times of transmission Max2 or Max2+1 is respectively reached, or
The sum of the counting at least one the wave beam lead code retransmission counter being arranged in person's terminal reaches third and presets maximum number of times of transmission
Max3 or Max3+1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
If terminal reaches maximum transmission power, beam switchover is carried out, i.e., lead code is carried out using another wave beam
It retransmits；And when there are one of following several situations, MAC layer indicates upper layer random access problems or instruction random access
Procedure failure:
1, every time retransmit lead code carry out beam switchover, after all wave beam rotations, MAC layer indicate upper layer with
Machine accesses problem or instruction random access procedure failure；
2, the beam switchover lead code retransmission counter (PREAMBLE_BEAM_SWITCH_COUNTER) being arranged in terminal
Counting reach the 4th default maximum number of times of transmission after, MAC layer indicate upper layer random access problems or instruction random access mistake
Journey failure；
3, at least one the wave beam lead code retransmission counter counting being arranged in terminal respectively reaches the 5th default maximum hair
Send number Max5 perhaps Max5+1 MAC layer instruction upper layer random access problems or instruction random access procedure failure；
4, the sum of the counting at least one the wave beam lead code retransmission counter being arranged in terminal reaches the 6th default maximum
Transmission times Max6 or Max6+1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, another possibility there are the case where be, terminal after reaching maximum transmission power, regardless of whether carry out
The switching of wave beam, as long as all carrying out random access not successfully, then MAC in default number of retransmissions or in defined preset time
Layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, another possibility there are the case where be, terminal after reaching maximum transmission power, terminal update part
Or whole candidate beams；Or terminal executes beam switchover.It should be noted that in this case, it can be further
Using following first way, resets the power being arranged in terminal and climb counter as initial value, re-start lead code weight
Pass power climb, i.e., every time reappear replacement wave beam after, all re-start power climb and power climbs counter again
It counts；In this case, it can further use the following second way, reset the power being arranged in terminal and climb meter
Number device is the count value of the wave beam lead code retransmission counter for the object beam being arranged in terminal, re-starts lead code and retransmits function
Rate is climbed.
Optionally, when being provided with power grade preamble transmissions counter (PREAMBLE_TRANSMISSION_ in terminal
When COUNTER_PL), the preamble transmissions which is directed under each power grade are counted
Number.When the transmission power that terminal sends lead code is maximum transmission power, the corresponding power grade of the maximum transmission power
Preamble transmissions counter reaches default maximum count value Max7 or Max7+1, then MAC layer instruction upper layer random access problems or
Person indicates random access procedure failure.Optionally, when the power grade preamble transmissions counter being arranged in terminal is corresponding not
When being maximum transmission power, when the power grade preamble transmissions counter reaches default maximum count number, then carry out leading
The transmission power of code is climbed；And when the transmission power for carrying out lead code is climbed, need to reset the function being arranged in terminal
Rate grade preamble transmissions counter.
Optionally, the transmission power of lead code can also retract, when the transmission power of lead code retracts, it is also desirable to
The power grade preamble transmissions counter being arranged in resetting terminal.
The setting rule of the power grade preamble transmissions counter are as follows:
When each random access procedure initialization or resetting, resetting the power grade preamble transmissions counter is 1 or 0；
When terminal is not properly received RAR within a preset time (preset time is RAR window, i.e. RAR time window)
When message or contention resolved fail, the power grade preamble transmissions counter carries out the operation that count is incremented.
It should be noted that terminal can be with after the transmission power that terminal sends lead code is equal to maximum transmission power
Execute following measures:
By the power of current transmission power one step-length of rollback, and according to the weight of the transmission power progress lead code after rollback
It passes；Or
Current transmission power is retracted the power of a step-length, and carries out beam switchover, and based on after switching wave beam and
Transmission power after rollback carries out re-transmission lead code；
It should be noted that the step-length that above-mentioned transmission power retracts is configured by base station for terminal, (base station passes through private radio
Resources control (RRC) message, RRC configuration, RRC reconfigure, system message (SI) or broadcast message etc. modes be terminal configure) or
The step-length that above-mentioned transmission power retracts determines (i.e. the step-length is by protocol conventions) by preset rules.
Further, after transmission power rollback, the power that terminal can also re-start lead code re-transmission climbs.
The embodiment of the present invention, by being retransmitted after power reaches maximum value in lead code, to the specific communication behavior of terminal into
Row definition, ensure that the complete of communication process with this；Meanwhile the processing mode of the embodiment of the present invention, terminal can be reduced to same
Frequently the interference of other terminals ensure that the reliability of communication as far as possible.
As shown in Fig. 2, the terminal of the embodiment of the present invention, comprising:
Detection module 201 sends the transmission power of lead code for detecting terminal；
Processing module 202, after the transmission power for sending lead code when terminal is equal to maximum transmission power, to terminal
Medium access control MAC layer indicated horsepower, which climbs, to be suspended instruction and/or determines whether random access is deposited according to the counter of setting
Whether fail in problem or random access.
Further, the MAC layer of terminal is climbed after pause instruction receiving the power that physical layer provides, in preset time or
Person's lead code presets failed random access in number of retransmissions, then MAC layer instruction upper layer random access problems or instruction are random
Access procedure failure.
Optionally, the processing module according to the counter of setting determine random access with the presence or absence of problem mode or
Whether random access fails, comprising:
When subsequent lead code retransmits, the power being arranged in terminal counter pause of climbing is counted.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is used for:
If the lead code retransmission counter being arranged in terminal reaches the first default maximum number of times of transmission Max1 or Max1+1, or
At least one the wave beam lead code retransmission counter counting being arranged in person's terminal respectively reaches the second default maximum number of times of transmission
The sum of the counting at least one wave beam lead code retransmission counter that Max2 is perhaps arranged in Max2+1 or terminal reaches third
Default maximum number of times of transmission Max3 or Max3+1, then MAC layer indicates upper layer random access problems or instruction random access procedure
Failure.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is used for:
Carry out beam switchover；And
Lead code is retransmitted every time and carries out beam switchover, and after all wave beam rotations, MAC layer instruction upper layer connects at random
Enter problem or instruction random access procedure failure；Or the counting for the beam switchover lead code retransmission counter being arranged in terminal
After reaching the 4th default maximum number of times of transmission, MAC layer indicates upper layer random access problems or instruction random access procedure failure；
Or at least one the wave beam lead code retransmission counter counting being arranged in terminal respectively reaches the 5th default maximum number of times of transmission
Max5 perhaps Max5+1 MAC layer instruction upper layer random access problems or instruction random access procedure failure；Or it is set in terminal
The sum of the counting at least one the wave beam lead code retransmission counter set reaches the 6th default maximum number of times of transmission Max6 or Max6+
1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is used for:
Terminal updates some or all of candidate beam；Or
Execute beam switchover.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is also used to:
The power being arranged in resetting terminal climbs counter as initial value, re-starts lead code re-transmission power and climbs.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is also used to:
The power that the is arranged wave beam lead code that counter is the object beam being arranged in terminal of climbing retransmits in resetting terminal
The count value of counter re-starts lead code re-transmission power and climbs.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is used for:
When the transmission power that terminal sends lead code is maximum transmission power, the corresponding power of the maximum transmission power
Grade preamble transmissions counter reaches default maximum count value Max7 or Max7+1, then MAC layer instruction upper layer random access is asked
Topic or instruction random access procedure failure.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is used for:
When the power grade preamble transmissions counter being arranged in terminal reaches default maximum count number, then carry out leading
The transmission power of code is climbed；Or
When the transmission power of lead code retracts, the power grade preamble transmissions counter being arranged in terminal is reset.
Optionally, the processing module is determining that random access connects with the presence or absence of problem or at random according to the counter of setting
When entering whether to fail, it is also used to:
When the transmission power of lead code is climbed, resets the power grade preamble transmissions being arranged in terminal and count
Device.
Further, when terminal is not properly received random access response RAR message or contention resolved within a preset time
When failure, the power grade preamble transmissions counter carries out the operation that count is incremented.
Further, after the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
Indicating module is used to preset failed random access in number of retransmissions in preset time or lead code, then MAC layer
Indicate upper layer random access problems or instruction random access procedure failure.
Further, after the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
Back-off module, for current transmission power to retract the power of a step-length, and according to the transmitting after rollback
The re-transmission of power progress lead code；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
Further, after the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
Switching module and carries out beam switchover for current transmission power to retract the power of a step-length, and based on cutting
The transmission power after wave beam and rollback after changing carries out re-transmission lead code；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
Further, the terminal, further includes:
Power climbs module, and the power for re-starting lead code re-transmission climbs.
It should be noted that the terminal embodiment is sent with the above-mentioned random access procedure lead code applied to terminal side
The corresponding terminal of the control method of power, all implementations of above-described embodiment suitable for the terminal embodiment,
Same technical effect can be reached.
The embodiment of the present invention also provides a kind of terminal, comprising: memory, processor and storage on a memory and can located
The computer program that runs on reason device, the computer program are realized above-mentioned applied to terminal side when being executed by the processor
Random access procedure lead code send each process in the control method embodiment of power, and identical technology effect can be reached
Fruit, to avoid repeating, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, wherein the computer readable storage medium
On be stored with computer program, the computer program is realized when being executed by processor above-mentioned is applied to connecing at random for terminal side
Enter each process in the control method embodiment of process lead code transmission power, and identical technical effect can be reached, to keep away
Exempt to repeat, which is not described herein again.Wherein, the computer readable storage medium, such as read-only memory (Read-Only
Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc..
As shown in figure 3, the structural block diagram of the terminal for one embodiment of the invention.The present invention is illustrated below with reference to the figure
Random access procedure lead code send power control method application entity.
Terminal 300 as shown in Figure 3 includes: at least one processor 301, memory 302, at least one network interface
304 and user interface 303.Various components in terminal 300 are coupled by bus system 305.It is understood that bus system
305 for realizing the connection communication between these components.Bus system 305 further includes that power supply is total in addition to including data/address bus
Line, control bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as total linear system in Fig. 3
System 305.
Wherein, user interface 303 may include display, keyboard or pointing device (for example, mouse, trace ball
(track ball), touch-sensitive plate or touch screen etc..
It is appreciated that the memory 302 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read-
Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable
Device (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or
Flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as external high
Speed caching.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory
(Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory
(Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct
Rambus RAM, DRRAM).The memory 302 of system and method described herein is intended to include but is not limited to these and arbitrarily its
It is suitble to the memory of type.
In some embodiments, memory 302 stores following element, executable modules or data structures, or
Their subset of person or their superset: operating system 3021 and application program 3022.
Wherein, operating system 3021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for
Realize various basic businesses and the hardware based task of processing.Application program 3022 includes various application programs, such as media
Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention
The program of method may be embodied in application program 3022.
In embodiments of the present invention, mobile terminal 300 further include: be stored on memory 302 and can be on processor 301
The computer program of operation specifically can be the computer-controlled program in application program 3022, and computer program is processed
Device 301 realizes following steps when executing: detection terminal sends the transmission power of lead code；When terminal sends the transmitting function of lead code
After rate is equal to maximum transmission power, climb pause instruction and/or according to setting to the medium access control MAC layer indicated horsepower of terminal
The counter set determines whether random access fails with the presence or absence of problem or random access.
The method that the embodiments of the present invention disclose can be applied in processor 301, or be realized by processor 301.
Processor 301 may be a kind of IC chip, the processing capacity with signal.During realization, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 301 or the instruction of software form.Above-mentioned processing
Device 301 can be general processor, digital signal processor (Digital Signal Processor, DSP), dedicated integrated electricity
Road (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general
Processor can be microprocessor or the processor is also possible to any conventional processor etc..In conjunction with institute of the embodiment of the present invention
The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor
And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only
In the computer readable storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The meter
Calculation machine readable storage medium storing program for executing is located at memory 302, and processor 301 reads the information in memory 302, completes in conjunction with its hardware
The step of stating method.Specifically, it is stored with computer program on the computer readable storage medium, computer program is by processor
301 realize following steps when executing.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSPDevice, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein
The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or
It is realized outside processor.
Optionally, realize when computer program is executed by processor 301: the MAC layer of terminal is receiving what physical layer provided
Power climbs after pause instruction, presets failed random access in number of retransmissions in preset time or lead code, then MAC layer refers to
Show upper layer random access problems or instruction random access procedure failure.
Optionally, it realizes when computer program is executed by processor 301: when subsequent lead code retransmits, being arranged in terminal
Power climb counter pause count.
Optionally, it is realized when computer program is executed by processor 301: if the lead code retransmission counter being arranged in terminal
Reach at least one the wave beam lead code being arranged in the first default maximum number of times of transmission Max1 or Max1+1 or terminal and retransmits meter
Rolling counters forward respectively reaches at least one wave that the second default maximum number of times of transmission Max2 is perhaps arranged in Max2+1 or terminal
The sum of the counting of beam lead code retransmission counter reaches third and presets maximum number of times of transmission Max3 or Max3+1, then MAC layer indicates
Upper layer random access problems or instruction random access procedure failure.
Optionally, it is realized when computer program is executed by processor 301: carrying out beam switchover；And
Lead code is retransmitted every time and carries out beam switchover, and after all wave beam rotations, MAC layer instruction upper layer connects at random
Enter problem or instruction random access procedure failure；Or the counting for the beam switchover lead code retransmission counter being arranged in terminal
After reaching the 4th default maximum number of times of transmission, MAC layer indicates upper layer random access problems or instruction random access procedure failure；
Or at least one the wave beam lead code retransmission counter counting being arranged in terminal respectively reaches the 5th default maximum number of times of transmission
Max5 perhaps Max5+1 MAC layer instruction upper layer random access problems or instruction random access procedure failure；Or it is set in terminal
The sum of the counting at least one the wave beam lead code retransmission counter set reaches the 6th default maximum number of times of transmission Max6 or Max6+
1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, realize when computer program is executed by processor 301: terminal updates some or all of candidate beam；
Or
Execute beam switchover.
Optionally, realize when computer program is executed by processor 301: the power that is arranged climbs counter in resetting terminal
For initial value, re-starts lead code re-transmission power and climb.
Optionally, realize when computer program is executed by processor 301: the power that is arranged climbs counter in resetting terminal
For the count value of the wave beam lead code retransmission counter for the object beam being arranged in terminal, re-starts lead code re-transmission power and climb
It rises.
Optionally, it is realized when computer program is executed by processor 301: being most in the transmission power that terminal sends lead code
When big transmission power, the corresponding power grade preamble transmissions counter of the maximum transmission power reaches default maximum count value
Max7 or Max7+1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, it is realized when computer program is executed by processor 301: when the power grade lead code being arranged in terminal passes
Defeated counter reaches default maximum count number, then carries out climbing for the transmission power of lead code；Or
When the transmission power of lead code retracts, the power grade preamble transmissions counter being arranged in terminal is reset.
Optionally, it is realized when computer program is executed by processor 301: when the transmission power of lead code is climbed,
The power grade preamble transmissions counter being arranged in resetting terminal.
Optionally, computer program by processor 301 execute when realize: when terminal be not properly received within a preset time with
When machine access response RAR message or contention resolved fail, the power grade preamble transmissions counter carries out what count is incremented
Operation.
Optionally, it is realized when computer program is executed by processor 301: in preset time or the default re-transmission time of lead code
Failed random access in number, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
Optionally, it is realized when computer program is executed by processor 301: by the function of current transmission power one step-length of rollback
Rate, and according to the re-transmission of the transmission power progress lead code after rollback；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
Optionally, it is realized when computer program is executed by processor 301: by the function of current transmission power one step-length of rollback
Rate, and beam switchover is carried out, and re-transmission lead code is carried out based on the transmission power after the wave beam and rollback after switching；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
Terminal 300 can be realized each process that terminal is realized in previous embodiment, no longer superfluous here to avoid repeating
It states.
The terminal of the embodiment of the present invention passes through the specific communication after lead code re-transmission power reaches maximum value, to terminal
Behavior is defined, and be ensure that the complete of communication process with this, be ensure that the reliability of communication.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or the terminal device that include a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of terminal device.In the absence of more restrictions, the element limited by sentence "including a ...", and
It is not precluded in the process, method including the element, article or terminal device that there is also other identical elements.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (34)
1. the control method that a kind of random access procedure lead code sends power characterized by comprising
Detect the transmission power that terminal sends lead code；
After the transmission power that terminal sends lead code is equal to maximum transmission power, refer to the medium access control MAC layer of terminal
Show power climb pause instruction and/or according to the counter of setting determine random access with the presence or absence of problem or random access whether
Failure.
2. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that terminal
MAC layer climb after pause instruction receiving the power that physical layer provides, preset number of retransmissions in preset time or lead code
Interior failed random access, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
3. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
When subsequent lead code retransmits, the power being arranged in terminal counter pause of climbing is counted.
4. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
If the lead code retransmission counter being arranged in terminal reaches the first default maximum number of times of transmission Max1 or Max1+1, or eventually
Be arranged in end at least one wave beam lead code retransmission counter counting respectively reach the second default maximum number of times of transmission Max2 or
It is default most that the sum of the counting at least one the wave beam lead code retransmission counter being arranged in person Max2+1 or terminal reaches third
Big transmission times Max3 or Max3+1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
5. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
Carry out beam switchover；And
Lead code is retransmitted every time and carries out beam switchover, and after all wave beam rotations, MAC layer instruction upper layer random access is asked
Topic or instruction random access procedure failure；Or the counting for the beam switchover lead code retransmission counter being arranged in terminal reaches
After 4th default maximum number of times of transmission, MAC layer indicates upper layer random access problems or instruction random access procedure failure；Or
At least one the wave beam lead code retransmission counter counting being arranged in terminal respectively reaches the 5th default maximum number of times of transmission Max5
Perhaps Max5+1 MAC layer instruction upper layer random access problems or instruction random access procedure failure；Or be arranged in terminal
The sum of the counting of at least one wave beam lead code retransmission counter reaches the 6th default maximum number of times of transmission Max6 or Max6+1, then
MAC layer indicates upper layer random access problems or instruction random access procedure failure.
6. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
Terminal updates some or all of candidate beam；Or
Execute beam switchover.
7. the control method that random access procedure lead code according to claim 6 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, further includes:
The power being arranged in resetting terminal climbs counter as initial value, re-starts lead code re-transmission power and climbs.
8. the control method that random access procedure lead code according to claim 6 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
The power that the is arranged wave beam lead code that counter is the object beam being arranged in terminal of climbing is retransmitted and is counted in resetting terminal
The count value of device re-starts lead code re-transmission power and climbs.
9. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that according to
The counter of setting determines whether random access fails with the presence or absence of the mode or random access of problem, comprising:
When the transmission power that terminal sends lead code is maximum transmission power, the corresponding power grade of the maximum transmission power
Preamble transmissions counter reaches default maximum count value Max7 or Max7+1, then MAC layer instruction upper layer random access problems or
Person indicates random access procedure failure.
10. the control method that random access procedure lead code according to claim 9 sends power, which is characterized in that root
Determine whether random access fails with the presence or absence of the mode or random access of problem according to the counter of setting, comprising:
When the power grade preamble transmissions counter being arranged in terminal reaches default maximum count number, then lead code is carried out
Transmission power is climbed；Or
When the transmission power of lead code retracts, the power grade preamble transmissions counter being arranged in terminal is reset.
11. the control method that random access procedure lead code according to claim 9 sends power, which is characterized in that root
Determine whether random access fails with the presence or absence of the mode or random access of problem according to the counter of setting, further includes:
When the transmission power of lead code is climbed, the power grade preamble transmissions counter being arranged in terminal is reset.
12. the control method that random access procedure lead code according to claim 9 sends power, which is characterized in that when
When terminal is not properly received random access response RAR message or contention resolved failure within a preset time, the power grade
Preamble transmissions counter carries out the operation that count is incremented.
13. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that when
After the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
Failed random access in number of retransmissions is preset in preset time or lead code, then MAC layer indicates upper layer random access
Problem or instruction random access procedure failure.
14. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that when
After the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
By the power of current transmission power one step-length of rollback, and according to the re-transmission of the transmission power progress lead code after rollback；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
15. the control method that random access procedure lead code according to claim 1 sends power, which is characterized in that when
After the transmission power that terminal sends lead code is equal to maximum transmission power, further includes:
By the power of current transmission power one step-length of rollback, and beam switchover is carried out, and based on the wave beam and rollback after switching
Transmission power afterwards carries out re-transmission lead code；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
16. random access procedure lead code according to claim 14 or 15 sends the control method of power, feature exists
In, further includes: the power for re-starting lead code re-transmission climbs.
17. a kind of terminal characterized by comprising
Detection module sends the transmission power of lead code for detecting terminal；
Processing module is visited after the transmission power for sending lead code when terminal is equal to maximum transmission power to the medium of terminal
It asks that control MAC layer indicated horsepower climbs to suspend instruction and/or determine random access with the presence or absence of problem according to the counter of setting
Or whether random access fails.
18. terminal according to claim 17, which is characterized in that the MAC layer of terminal is in the power for receiving physical layer and providing
It climbs after pause instruction, presets failed random access in number of retransmissions in preset time or lead code, then in MAC layer instruction
Layer random access problems or instruction random access procedure failure.
19. terminal according to claim 17, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is used for:
When subsequent lead code retransmits, the power being arranged in terminal counter pause of climbing is counted.
20. terminal according to claim 17, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is used for:
If the lead code retransmission counter being arranged in terminal reaches the first default maximum number of times of transmission Max1 or Max1+1, or eventually
Be arranged in end at least one wave beam lead code retransmission counter counting respectively reach the second default maximum number of times of transmission Max2 or
It is default most that the sum of the counting at least one the wave beam lead code retransmission counter being arranged in person Max2+1 or terminal reaches third
Big transmission times Max3 or Max3+1, then MAC layer instruction upper layer random access problems or instruction random access procedure failure.
21. terminal according to claim 17, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is used for:
Carry out beam switchover；And
Lead code is retransmitted every time and carries out beam switchover, and after all wave beam rotations, MAC layer instruction upper layer random access is asked
Topic or instruction random access procedure failure；Or the counting for the beam switchover lead code retransmission counter being arranged in terminal reaches
After 4th default maximum number of times of transmission, MAC layer indicates upper layer random access problems or instruction random access procedure failure；Or
At least one the wave beam lead code retransmission counter counting being arranged in terminal respectively reaches the 5th default maximum number of times of transmission Max5
Perhaps Max5+1 MAC layer instruction upper layer random access problems or instruction random access procedure failure；Or be arranged in terminal
The sum of the counting of at least one wave beam lead code retransmission counter reaches the 6th default maximum number of times of transmission Max6 or Max6+1, then
MAC layer indicates upper layer random access problems or instruction random access procedure failure.
22. terminal according to claim 17, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is used for:
Update some or all of candidate beam；Or
Execute beam switchover.
23. terminal according to claim 22, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is also used to:
The power being arranged in resetting terminal climbs counter as initial value, re-starts lead code re-transmission power and climbs.
24. terminal according to claim 22, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is also used to:
The power that the is arranged wave beam lead code that counter is the object beam being arranged in terminal of climbing is retransmitted and is counted in resetting terminal
The count value of device re-starts lead code re-transmission power and climbs.
25. terminal according to claim 17, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is used for:
When the transmission power that terminal sends lead code is maximum transmission power, the corresponding power grade of the maximum transmission power
Preamble transmissions counter reaches default maximum count value Max7 or Max7+1, then MAC layer instruction upper layer random access problems or
Person indicates random access procedure failure.
26. terminal according to claim 25, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is also used to:
When the power grade preamble transmissions counter being arranged in terminal reaches default maximum count number, then lead code is carried out
Transmission power is climbed；Or
When the transmission power of lead code retracts, the power grade preamble transmissions counter being arranged in terminal is reset.
27. terminal according to claim 25, which is characterized in that the processing module determines according to the counter of setting
When whether random access fails with the presence or absence of problem or random access, it is also used to:
When the transmission power of lead code is climbed, the power grade preamble transmissions counter being arranged in terminal is reset.
28. terminal according to claim 25, which is characterized in that connect at random when terminal is not properly received within a preset time
When entering to respond RAR message or contention resolved failure, the power grade preamble transmissions counter carries out the behaviour that count is incremented
Make.
29. terminal according to claim 17, which is characterized in that when the transmission power that terminal sends lead code is equal to maximum
After transmission power, further includes:
Indicating module, for presetting failed random access in number of retransmissions in preset time or lead code, then MAC layer indicates
Upper layer random access problems or instruction random access procedure failure.
30. terminal according to claim 17, which is characterized in that when the transmission power that terminal sends lead code is equal to maximum
After transmission power, further includes:
Back-off module, for current transmission power to retract the power of a step-length, and according to the transmission power after rollback
Carry out the re-transmission of lead code；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
31. terminal according to claim 17, which is characterized in that when the transmission power that terminal sends lead code is equal to maximum
After transmission power, further includes:
Switching module and carries out beam switchover for current transmission power to retract the power of a step-length, and based on switching after
Wave beam and rollback after transmission power carry out re-transmission lead code；
Wherein, the step-length is configured by base station for terminal or the step-length is determined by preset rules.
32. the terminal according to claim 30 or 31, which is characterized in that further include:
Power climbs module, and the power for re-starting lead code re-transmission climbs.
33. a kind of terminal characterized by comprising memory, processor and storage can transport on a memory and on a processor
Capable computer program is realized when the computer program is executed by the processor such as any one of claims 1 to 16 institute
The random access procedure lead code stated sends the step of control method of power.
34. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the random access mistake as described in any one of claims 1 to 16 when the computer program is executed by processor
Cheng Qian's leading code sends the step of control method of power.
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| CN201710459785.2A CN109151980B (en) | 2017-06-16 | 2017-06-16 | Method and terminal for controlling preamble sending power in random access process |
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| CN201710459785.2A CN109151980B (en) | 2017-06-16 | 2017-06-16 | Method and terminal for controlling preamble sending power in random access process |
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