CN109475001A

CN109475001A - Method and device for sending random access preamble sequence

Info

Publication number: CN109475001A
Application number: CN201710807829.6A
Authority: CN
Inventors: 钱辰; 喻斌; 熊琦
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-09-08
Filing date: 2017-09-08
Publication date: 2019-03-15
Anticipated expiration: 2037-09-08
Also published as: CN109475001B

Abstract

The present invention relates to the technical field of wireless communication, and provides a method and device for sending a random access preamble sequence. In the method, a synchronization signal block is detected to obtain a reference signal received power; a target synchronization signal block is determined according to the reference signal received power, and the obtained The configuration information carried in the target synchronization signal block; the random access preamble sequence is determined according to the configuration information; and the transmission power of the random access preamble sequence is determined according to the configuration information and the reference signal received power; according to the transmission power carried in the configuration information The random access preamble sequence is sent on the random access channel. In the present invention, by configuring the transmission power of the synchronization signal block and the target reception power of the preamble sequence, the configuration of the transmission power of different random access preamble sequences for different synchronization signal blocks is completed with low overhead. Using the method provided by the present invention can provide higher energy efficiency, save the power of the terminal, improve the life of the terminal and improve the user experience.

Description

The sending method and device of random access leader sequence

Technical field

The present invention relates to wireless communication technology fields, a kind of sending method more particularly to random access leader sequence and Device.

Background technique

With the fast development of information industry, especially from mobile Internet and Internet of Things (IoT, internet of Things increased requirement) brings unprecedented challenge to future mobile.Such as according to International Telecommunication Union ITU Report ITU-R M. it is anticipated that arrive the year two thousand twenty, mobile service amount, which increases the opposite 4G epoch, will increase nearly 1000 times, Yong Hushe Standby connection number also will be more than 17,000,000,000, and as the IoT equipment of magnanimity gradually penetrates into mobile communications network, connection number of devices will more Add surprising.In order to cope with this unprecedented challenge, communications industry circle and academia have expanded extensive 5th Dai Yidong Research on Communication Technology (5G), towards the year two thousand twenty generation.At present in the frame that future 5G is discussed in the report ITU-R M. of ITU And overall goals, wherein the demand to 5G is looked forward to, application scenarios and every important performance indexes elaborate.For in 5G New demand, the report ITU-R M. of ITU provides the relevant information of technological trend for 5G, it is intended to solve throughput of system It is obviously improved, user experience consistency, scalability are to support IoT, time delay, efficiency, cost, network flexibility, emerging service It supports and the prominent questions such as flexible spectrum utilization.

With the fast development of information industry, especially from mobile Internet and Internet of Things (IoT, internet of Things increased requirement) brings unprecedented challenge to future mobile.Such as according to International Telecommunication Union ITU Report ITU-R M. [IMT.BEYOND 2020.TRAFFIC], it is contemplated that arrive the year two thousand twenty, opposite 2010 4G epoch, Mobile service amount will increase nearly 1000 times, and user equipment connection number also will be more than 17,000,000,000, as the IoT equipment of magnanimity is gradually seeped Mobile communications network is arrived thoroughly, and connection number of devices will be more surprising.In order to cope with this unprecedented challenge, communications industry circle and Art circle has expanded extensive 5th third-generation mobile communication technical research (5G), towards the year two thousand twenty generation.At present in the report of ITU In the frame and overall goals that future 5G is discussed in ITU-R M. [IMT.VISION], wherein the demand to 5G is looked forward to, is answered It is elaborated with scene and every important performance indexes.For the new demand in 5G, the report ITU-R M. of ITU [IMT.FUTURE TECHNOLOGY TRENDS] provides the relevant information of technological trend for 5G, it is intended to which solution system gulps down The amount of spitting is obviously improved, user experience consistency, scalability are to support IoT time delay, efficiency, cost, network flexibility, emerging service Support and the prominent questions such as flexible spectrum utilization.

Compared with existing LTE system, introducing is worked in the system of high band to improve the data transmission efficiency of system by 5G And the availability of frequency spectrum.For significant path loss in confrontation high band wireless channel, the wireless communication system of high band is worked in System needs to operate using multi-beam, matches generated beam forming gain by correct wave beam to improve the performance of system.Cause This, for multiple-beam system, the accuracy of wave beam pairing will significantly affect system performance.

For the multi-beam operating system for working in high band, the beam selection of initial access is needed through synchronous letter The search of number block is completed.Specifically, in system there are multiple synchronization signal blocks, each synchronization signal block uses identical or not Same downlink sends the transmission that wave beam carries out downlink signal.Terminal uses preset criterion, according to the ginseng of synchronization signal block Signal reception power (Reference Signal Received Power, RSRP) is examined to select suitable synchronization signal block, it is complete At down-going synchronous process.

In view of in 5G system, a downlink wave beam only covers a part of angle in a sector, different down going waves Covering demand in beam coverage area may not be identical, and workload may also be different, it is therefore desirable to downlink transmission power It is possible that not identical.When different synchronization signal blocks uses different transmission power, need to notify in system information corresponding Synchronization signal block corresponding to transmission power, in order to terminal calculate path loss, thus obtain send random access preamble The power of sequence.Notify the transmission power of each synchronization signal block that will generate biggish expense in system information.

The transmission power that random access leader sequence is notified such as how lesser expense, is urgently to be resolved in the prior art The problem of.

In the prior art, the Reference Signal Received Power meter that terminal is obtained according to preset base-station transmitting-power and measurement Path loss is calculated, and determines the transmission power of random access leader sequence.For the multi-beam operating system in 5G, due to difference Covering demand in beam coverage is not identical, therefore even for the different beams coverage area in same sector, under The transmission power demand of line synchronising signal block is not also identical.At this point, still will be unable to meet using single downlink transmission power Power in cell in different beams coverage area sends demand, leads to the waste of power.

Summary of the invention

The present invention provides the sending method and device of a kind of random access leader sequence, to be completed by lower expense Different synchronization signal blocks configures the transmission power of different random access leader sequences, to realize to random access preamble sequence The transmission of column.

The present invention provides a kind of sending method of random access leader sequence, comprising:

Detection synchronization signal block obtains Reference Signal Received Power；

Object synchronization block is determined according to the Reference Signal Received Power, and is obtained in the object synchronization block Entrained configuration information；

Random access channel and random access leader sequence are determined according to the configuration information, and according to the configuration information The transmission power of the random access leader sequence is determined with Reference Signal Received Power；

The random access leader sequence is sent on the random access channel according to the transmission power.

It is preferably, described that object synchronization block is determined according to the Reference Signal Received Power, comprising:

Selection has synchronous letter corresponding to the Reference Signal Received Power of maximum value in each Reference Signal Received Power Number block is as object synchronization block；Or,

The multiple all reference signals filtered out in each Reference Signal Received Power higher than the first preset threshold receive function Synchronization signal block corresponding to rate, and a synchronous letter is randomly choosed with equiprobability in the multiple synchronization signal blocks filtered out Number block is as object synchronization block；If there is no the references higher than first preset threshold in each Reference Signal Received Power Signal reception power then selects synchronization signal block corresponding to the Reference Signal Received Power with maximum value as object synchronization Block.

It is indicated according in configuration information entrained in each Reference Signal Received Power and its corresponding synchronization signal block Transmission power, the path loss of each synchronization signal block is calculated, according to the path loss selection target synchronization signal block.

Preferably, described according to the path loss selection target synchronization signal block, it specifically includes:

Select the smallest synchronization signal block of path loss as object synchronization block；Or,

Synchronization signal block corresponding to multiple path losses lower than the second preset threshold is filtered out in each path loss, And a synchronization signal block is randomly selected as object synchronization signal using equiprobability in the multiple synchronization signal blocks filtered out Block；If there is no the path losses lower than second preset threshold in each path loss, select path loss the smallest same Block is walked as object synchronization block.

Preferably, the configuration information is power configuration information, described to be received according to the configuration information and reference signal Power determines the transmission power of random access leader sequence, comprising:

The transmission power of object synchronization block is determined according to the power configuration information；

The object synchronization signal is calculated according to the transmission power of the object synchronization block and Reference Signal Received Power The path loss of block；

Random access preamble is obtained according to the path loss calculation of the power configuration information and the object synchronization block The transmission power of sequence.

Preferably, described that transmission power, including following any mode are determined according to the power configuration information:

Obtain the transmission power of the object synchronization block；

The transmission power is determined according to reference emission power and power floating parameter.

Preferably, the transmission power for obtaining the object synchronization block, comprising:

Obtain the transmission power of quantization entrained in the power configuration information；Or,

Obtain the first index information of the object synchronization block entrained in the power configuration information；According to described First index information inquires transmission power map listing, obtains the transmission power of corresponding first index information.

Obtain the power configuration argument sequence for including in the power configuration information；Wherein, the power configuration parameter sequence It is classified as the sequence that the transmission power information corresponding to synchronization signal block group each in current power group forms；Believed according to object synchronization The index information and the power configuration argument sequence of number block determine the transmission power

Obtain the numbers of the power packages for including in the power configuration information, the synchronization signal block index letter in each power packages Transmission power configuration information corresponding to breath, synchronization signal block index sequence and each power packages；Wherein, a power packages are by more A synchronization signal block is constituted, and the transmission power configuration information of all synchronization signal blocks in each power packages is identical；The synchronization Block index sequence is the sequence as composed by multiple index informations using the synchronization signal block of identical transmission power；

According to the synchronization signal block index information and synchronous letter in the index information of object synchronization block, each power packages Number block index sequence filters out and the matched power packages of object synchronization block；

The transmission power is determined according to transmission power configuration information corresponding to the power packages that this is filtered out.

Preferably, if the synchronization signal block number in each power packages is not identical, further include in the power configuration information Synchronization signal block number in each power packages.

Obtain the rope of the number for the power packages for including in the power configuration information, synchronization signal block group in each power packages Transmission power configuration information corresponding to each synchronization signal block group in fuse breath and each power packages；Wherein, a power packages by Multiple synchronization signal block groups are constituted, and the transmission power of all synchronization signal blocks in each synchronization signal block group of each power packages is matched Confidence manner of breathing is same；

Gone out according to the synchronization signal block group index information sifting in the index information of object synchronization block and each power packages With the synchronization signal block group in the matched power packages of object synchronization block；

The transmission power is determined according to transmission power configuration information corresponding to the synchronization signal block group that this is filtered out.

Obtain transmission power configuration information corresponding to the power packages for including in the power configuration information；Wherein, one Power packages are made of multiple synchronization signal block groups, the hair of all synchronization signal blocks in each synchronization signal block group of each power packages It is identical to penetrate power configuration information；

Transmission power configuration information corresponding to the power packages is determined as to the transmission power of the object synchronization block of information.

It is preferably, described that the transmission power is determined according to reference emission power and power floating parameter, comprising:

Obtain the reference emission power and the second index information of quantization entrained in the power configuration information；

Power floating parameter map listing is inquired according to second index information, obtains corresponding second index information Power floating parameter；

The hair of the object synchronization block is calculated according to the reference emission power of the quantization and power floating parameter Penetrate power.

Obtain the reference emission power of quantization entrained in the power configuration information and the power floating parameter of quantization；

The object synchronization signal is calculated according to the power floating parameter of the reference emission power of the quantization and quantization The transmission power of block.

Obtain the second index information of the object synchronization block entrained in the power configuration information；

The hair of the object synchronization block is calculated according to preset reference emission power and the power floating parameter Penetrate power.

Obtain preconfigured power floating parameter and third index information entrained in the power configuration information；

Reference emission power map listing is inquired according to the third index information, obtains the corresponding third index information Reference emission power；

The transmission power of the object synchronization block is calculated according to the reference emission power and power floating parameter.

Obtain the second index information and third index information entrained in the power configuration information；

Preferably, the path loss calculation according to the power configuration information and the object synchronization block obtain with The transmission power of machine access lead sequence, comprising:

The initial target leader sequence obtained in the power configuration information receives power information；

Power information, which is received, according to the initial target leader sequence calculates leader sequence target received power；

The transmission of random access leader sequence is obtained according to the leader sequence target received power and path loss calculation Power.

Preferably, further includes:

Obtain the power contorl parameters carried in the power configuration information；

The leader sequence target received power or the random access preamble sequence are adjusted according to the power contorl parameters The transmission power of column.

It is preferably, described to obtain the power contorl parameters carried in the power configuration information, comprising:

Obtain the power contorl parameters of the object synchronization block entrained in the power configuration information；Or,

Obtain the 4th index information of the object synchronization block entrained in the power configuration information；According to described 4th index information inquires power contorl parameters map listing, obtains the power contorl parameters of corresponding 4th index information.

The present invention also provides a kind of sending devices of random access leader sequence, comprising:

Detection unit obtains Reference Signal Received Power for detecting synchronization signal block；

First processing units for determining object synchronization block according to the Reference Signal Received Power, and obtain institute State configuration information entrained in object synchronization block；

The second processing unit, for determining random access channel and random access leader sequence according to the configuration information, And the transmission power of the random access leader sequence is determined according to the configuration information and Reference Signal Received Power；

Transmission unit, for sending the random access preamble on the random access channel according to the transmission power Sequence.

Compared with prior art, the present invention has at least the following advantages:

In the present invention, by configuring the transmission power and leader sequence target received power of synchronization signal block, with lower Expense complete to configure different synchronization signal blocks the transmission power of different random access leader sequences.Using institute of the present invention The method of offer can provide higher energy efficiency for system, while save the power of terminal, improve the terminal service life and mention High user experience.

Detailed description of the invention

Fig. 1 is the flow diagram of the configuration method of the transmission power of random access leader sequence provided by the invention；

Fig. 2 is the flow diagram of the sending method of random access leader sequence provided by the invention；

Fig. 3 is the transmission schematic diagram of synchronization signal block provided by the present invention；

Fig. 4 is the power configuration schematic diagram in synchronization signal block group provided by the present invention；

Fig. 5 is the flow diagram of the sending method of random access leader sequence provided by the invention；

Fig. 6 is the structural schematic diagram of the sending device of random access leader sequence provided by the invention.

Specific embodiment

The present invention proposes the sending method and device of a kind of random access leader sequence, with reference to the accompanying drawing, to the present invention Specific embodiment is described in detail.

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.

Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here To explain.

For the transmission problem of the random access leader sequence under multi-beam operation in 5G, the present invention provides one kind and connects at random The configuration method for entering the transmission power of leader sequence, as shown in Figure 1, detailed process is as described below.

Terminal detects downlink synchronous signal, selects suitable synchronization signal block according to preset rules；

Terminal reads the broadcast channel of selected synchronization signal block, obtains the configuration in the Master Information Block of broadcast channels carry common Configuration information in information and the system information block of Master Information Block instruction；

Terminal calculates the road of selected synchronization signal block according to the power configuration information in the configuration information of Master Information Block Diameter loss；

The random access configuration information that terminal is included according to the configuration information in system information, knows random access opportunity Running time-frequency resource position, and determine required random access leader sequence；

Terminal determines the transmission power for sending random access leader sequence according to the path loss being calculated；

Terminal is on identified random access opportunity, the transmission function of calculated random access leader sequence Rate sends identified random access leader sequence.

Wherein, random access channel configuration information has been included at least in the random access configuration information, to indicate not The running time-frequency resource on corresponding random access opportunity with synchronization signal block.Meanwhile also comprising connecing at random in random access configuration information The format information for entering leader sequence, to indicate the structure and the structure on random access opportunity of random access leader sequence.With It further include power configuration information in random access procedure, such as intended recipient leader sequence power in machine access configuration information, Power climb interval etc..

It is further to note that in foregoing description, obtain configuration information (including obtain random access configuration information and Obtain power configuration information) it can carry out parallel；Determine that running time-frequency resource, leader sequence and transmission power can also carry out parallel.

Meanwhile mode provided by the present invention applies also for random access and attempts failure, when terminal is initiated to reattempt to Power determines.Specifically, if terminal discovery random access attempts failure, behavior can be summarized as follows:

Terminal according to configuration information determine this random access attempt selected random access opportunity running time-frequency resource and Random access leader sequence resource；

Terminal determines the power water that this random access is attempted according to the power level of the trial of previous random access procedure It is flat；

Terminal uses identified transmit power level on selected random access opportunity, sends identified random Access lead sequence.

It should be noted that terminal when determining random access opportunity, can refer to the last measurement result, it is suitable to determine Synchronization signal block.If having determined that the corresponding random access opportunity, and configured according to the transmission power of the synchronization signal block And the measurement result to the synchronization signal block, path loss is recalculated, is configured according to the transmission power of the synchronization signal block, Determine the transmission power of random access leader sequence.In the transmission power for determining leader sequence, it is also referred to number of retransmissions Counter or power climb counter, to determine the transmission power of the random access leader sequence.

Based on random access leader sequence provided by aforementioned present invention transmission power configuration method, below to this with The sending method of machine access lead sequence is specifically described, as shown in Figure 2, comprising:

Step 201, detection synchronization signal block obtains Reference Signal Received Power.

Step 202, object synchronization block is determined according to the Reference Signal Received Power, and obtains the object synchronization Entrained configuration information in block.

Wherein, described that object synchronization block is determined according to the Reference Signal Received Power, including it is following any one:

The multiple all reference signals filtered out in each Reference Signal Received Power higher than the first preset threshold receive function Synchronization signal block corresponding to rate, and a synchronous letter is randomly choosed with equiprobability in the multiple synchronization signal blocks filtered out Number block is as object synchronization block；If there is no the references higher than first preset threshold in each Reference Signal Received Power Signal reception power then selects synchronization signal block corresponding to the Reference Signal Received Power with maximum value as object synchronization Block；Or,

Further, described according to the path loss selection target synchronization signal block, may include the following two kinds mode:

Step 203, random access channel and random access leader sequence are determined according to the configuration information, and according to described Configuration information and Reference Signal Received Power determine the transmission power of the random access leader sequence.

In this step, the configuration information is power configuration information, described to be connect according to the configuration information and reference signal Receive the transmission power that power determines random access leader sequence, comprising:

Further, described that transmission power, including following any mode are determined according to the power configuration information:

1) transmission power of the object synchronization block is obtained；

2) transmission power is determined according to reference emission power and power floating parameter.

Above-mentioned several ways are illustrated respectively below.

For mode 1)

The transmission power for obtaining the object synchronization block, comprising:

Obtain the transmission power of quantization entrained in the power configuration information.

Or,

Obtain the power configuration argument sequence for including in the configuration parameter；Wherein, the power configuration argument sequence is The sequence that the transmission power information corresponding to synchronization signal block group each in current power group forms；According to object synchronization block Index information and the power configuration argument sequence determine the transmission power.

Or,

It wherein, further include each in the power configuration information if the synchronization signal block number in each power packages is not identical Synchronization signal block number in power packages.

Or,

For mode 2), following four kinds of methods can be specifically included again:

It is described that the transmission power is determined according to reference emission power and power floating parameter, comprising:

(1) the reference emission power and the second index information of quantization entrained in the power configuration information are obtained；

(2) power of the reference emission power and quantization that obtain quantization entrained in the power configuration information, which floats, joins Number；

(3) the second index information of the object synchronization block entrained in the power configuration information is obtained；

(4) preconfigured power floating parameter and third index letter entrained in the power configuration information are obtained Breath；

(5) the second index information and third index information entrained in the power configuration information are obtained；

It in this step, further include the path loss according to the power configuration information and the object synchronization block The processing of the transmission power of random access leader sequence is calculated, which includes:

Wherein, further includes:

It is further, described to obtain the power contorl parameters carried in the power configuration information, comprising:

Step 204, the random access leader sequence is sent according to the transmission power on the random access channel.

Based on the sending method of random access leader sequence provided by aforementioned present invention, below with several specific embodiments It is specifically described.

Embodiment one

In the present embodiment, a kind of configuration side of the transmission power of random access leader sequence of specific system introduction will be combined Method.In the present embodiment, system is sent completely initial access process by downlink synchronous signal block.Specifically, match in system One or more downlink synchronous signal blocks are set, each downlink synchronous signal block is by primary synchronization signal, subsynchronous signal and broadcast Channel composition.System for working under multi-beam operation, base station configure multiple synchronization signal blocks.Different synchronization signal blocks make Wave beam is sent with identical or different downlink to be sent.On time adjacent or near to synchronization signal block form synchronization signal block Group.Multiple synchronization signal block groups that all possible downlinks send beam direction can be covered and constitute synchronization signal set of blocks, such as Fig. 3 It is shown.

It should be noted that in the example shown in figure 3, the adjacent downlink send wave of adjacent synchronization signal block use direction Beam.It in systems in practice, can be according to network deployment scenario, under non-conterminous to time upper adjacent synchronization signal block use direction Row sends wave beam.

The Master Information Block of broadcast channel transmission carried terminal access network necessary information in synchronization signal block, in main information The system for carrying remaining minimum system information (Remaining Minimum System Information, RMSI) is carried in block Block of information.Carried terminal for connecing at random in RMSI or OSI (Other System Information, other systems information) The configuration information entered, including random access channel configuration information, random access leader sequence pond configuration information and some other Necessary configuration information.

Random access channel is made of multiple random access opportunitys, before a random access opportunity is for a random access The transmission of sequence is led, different random access opportunitys corresponds to different synchronization signal blocks, to indicate downlink required for base station Send wave beam.Different synchronization signal blocks can correspond to identical or different random access opportunity.If multiple synchronization signal blocks pair Identical random access opportunity is answered, then needs the mode for using random access leader sequence to be grouped to distinguish different synchronization signals Block.

The information carried in RMSI or OSI pointed by different synchronization signal blocks is identical, i.e. needs to carry in RMSI or OSI The configuration information on whole random access opportunitys.

Different synchronization signal blocks can use different transmission powers, to adapt to the covering demand on different directions.Eventually End when sending random access leader sequence, be the synchronization signal block by receiving Reference Signal Received Power (such as lead The Reference Signal Received Power of synchronization signal or subsynchronous signal) and base station synchronization block transmission power difference calculate should Path loss in downlink wave beam coverage area, and then calculate the transmission power of random access leader sequence.Therefore when different When synchronization signal block uses different transmission powers, base station needs to configure transmission power and notified, to make terminal meter Path loss is calculated to be possibly realized.Possible transmission power advice method is as follows:

1. directly configuring and notifying that transmission power used in different synchronization signal blocks is horizontal in RMSI or OSI.Specifically For, the configuration and notice of block transmission power are synchronized using the transmission power of quantization.One specific example is, in advance The bit number k for quantifying transmission power is set, i.e., the transmission power of each synchronization signal block is indicated using k bit.It is assumed that being M synchronization signal block is configured in system, the transmission power of this M synchronization signal block notifies in RMSI or OSI, uses Mk ratio Spy configures and notifies.Define power configuration parameter are as follows:

Power configuration parameter: [power 0, power 1 ..., power M-1]

Wherein, power i (0≤i≤M-1) is the transmission power of i-th of synchronization signal block, is indicated with k bit.

The notice precision of this mode is related with quantizing bit number k, and k is bigger, notifies each synchronization signal block transmission power The expense needed is bigger, but transmission power precision is also higher.

In addition to directly configuring and notifying the transmission power after quantization horizontal, another kind configuration and advice method are, using rope The mode for drawing table carries out the configuration and notice of transmission power level.One possible look-up table is as shown in table 1.

Table 1: transmission power configuration

Index	Power configuration (dBm)
		0	48
1	47
		2	46
3	45
		…	…

In example shown in table 1, terminal determines the transmission power of synchronization signal block by the relationship of index and power configuration, And the corresponding path loss of synchronization signal block is calculated accordingly.

2. if can be floated using power emission benchmark+power the transmission power between different synchronization signal blocks is not much different Mode notify and configure the transmission power between different synchronization signal blocks.Specifically, configuration baseline emits in RMSI or OSI Power, using m bit configuration.In addition, power floating configuration information is configured in RMSI or OSI, for notifying each synchronous letter Power floating parameter of the transmission power of number block relative to reference emission power.In view of usually different synchronization signal blocks are sent out The floating for penetrating power is not too large, this part is used to notify that the power floating parameter relative to reference emission power will not be very big. It is used to notify that the power relative to reference emission power floats for example, by using 2 to 3 bits, as shown in the table:

Table 2: power floating parameter configuration

Example shown in table 2 is to be used for the notice that power floats using 2 bits.It should be noted that each synchronization signal block It is required to the power floating parameter using this 2-3 bit configuration synchronization signal block.Notice power floating parameter is accordingly used in match The overhead set is 2-3 bit multiplied by synchronization signal block number.For notifying that the expense of synchronization signal block transmission power is above-mentioned The expense of power floating parameter configuration and the sum of the configuration bit of reference emission power.

For reference emission power, more easy advice method is to define several preset transmission powers, pass through index Mode configured and notified.One index indicates as shown in table 3.

Table 3: reference emission power configuration

Terminal calculates corresponding same according to the reference emission power received and the power floating parameter of respective synchronization block Walk the down transmitting power of block.For example, if the reference emission power that terminal receives is 46dBm, and terminal is selected The corresponding power floating parameter of synchronization signal block is 1dB, then the transmission power of the synchronization signal block is 46dBm+1dB=47dBm. Terminal will calculate path loss according to the transmission power, and then calculate the transmission power for being used for random access leader sequence.

It is further to note that a special case of this method is fixed reference emission power, base station and terminal are Know the reference emission power, therefore does not need to notify and configure.Only need to configure power floating parameter.Power floating parameter Configuration can refer to mode shown in above-mentioned table 2, the index etc. of power floating parameter is notified by the way of concordance list.

3. base station will be grouped with the synchronization signal block of identical or approximate down transmitting power, and be placed on adjacent time-frequency money It is sent in source block.Synchronization signal block in adjacent time/frequency source block uses approximately uniform transmission power, i.e., by synchronization signal block Grouping, the different synchronization signal blocks in group use approximately uniform transmission power, the synchronization signal block between group can be used it is different or Approximate different transmission power.It should be noted that there are matching for synchronization signal block group due in the configuration of synchronization signal block Mode is set, therefore one group of synchronization signal block for using approximately uniform transmission power can be configured in a synchronization signal block group, Or several groups of synchronization signal blocks are configured in same synchronization signal block group, to facilitate configuration.Above-mentioned two example such as Fig. 4 institute Show.

In the Fig. 4, the synchronization signal block with approximately equal transmission power is configured on adjacent running time-frequency resource Transmission forms power packages.Alternatively possible situation is, using the synchronous letter of approximately uniform transmission power in a power packages Number block is more, at this point it is possible to gather the synchronization signal block in multiple synchronization signal block groups, as a power packages.

The transmission power of synchronization signal block and corresponding power group in unified configuration power packages in RMSI or OSI.Matching It sets in notice, contains the configuration mode of the power packages.The possible configuration of one kind and advice method are to configure and notify power packages Number, the configuration of down transmitting power in the synchronization signal block index for including in every power group and each power packages.

Configuration parameter in each power packages are as follows: { synchronization signal block index sequence, transmission power configuration information }.Wherein, Synchronization signal block index sequence in the power packages use identical transmission power synchronization signal block corresponding to index institute group At sequence.Wherein, the index of synchronization signal block is the logic index of synchronization signal block, or the synchronization characterized with time index Block index, such as subframe index, time slot index or mini time slot index.Foregoing description can be used in the configuration of transmission power Two kinds of configuration modes, it can directly quantization simultaneously configuration notification directly is carried out to the transmission powers of each power packages；Or match Set and notify reference emission power and each power packages relative to the power floating parameter of reference emission power.

If the number for the synchronization signal block that different capacity group includes is not identical, need to increase in the configuration parameter of power packages Add the number information for the synchronization signal block for including in power packages.At this point, the configuration parameter of each power packages are as follows: { synchronization signal block Number, synchronization signal block index sequence, transmission power configuration information }.

It if the definition of power packages and the definition of synchronization signal block group match, i.e., include complete one in synchronization signal block group A power packages then can configure transmission power to synchronization signal block group.Above two side can be used in the configuration of transmission power and notice Formula.

If a power packages include multiple synchronization signal block groups, can be by the synchronization signal block in above-mentioned power packages configuration parameter Index, is revised as synchronization signal block group index, while the transmission power for configuring multiple synchronization signal block groups is horizontal.

The notice of another power packages is only to configure and notify each synchronization signal block group in power packages with configuration mode Transmission power configuration information, i.e. notice power configuration argument sequence, terminal determine selected transmission power according to certain rule Configuration mode.A kind of possible mode is, terminal is according to preset criterion and synchronization signal block group number or synchronous believes Number block number, determines corresponding configuration parameter in power configuration argument sequence.Specifically, the power in RMSI or OSI is matched Setting argument sequence is { P₀,…,P_N-1, N number of element, one power configuration parameter of each element representation are shared in the sequence.For Synchronization signal block index is I_SSSynchronization signal block, corresponding power configuration parameter notice power configuration argument sequence in Index is

N=mod (I_ss,N)

I.e. the selected power configuration parameter of the terminal is P_n。

The selection mode of another power configuration parameter is, is I for synchronization signal block index_SSSynchronization signal block, Corresponding power configuration parameter notice power configuration argument sequence in index be

In the present embodiment, terminal side behavior can be summarized as follows:

Terminal carries out the Master Information Block that initial access process, detection synchronization signal block, and read broadcast channel are carried Content.Suitable synchronization signal block is determined with preset criterion according to the Reference Signal Received Power that detection obtains.

Read Master Information Block instruction RMSI or OSI, obtain random access channel configuration information therein, according to it is described with Machine accesses channel configuration information, determines random access opportunity running time-frequency resource and random access leader sequence.

According to the synchronization signal block power configuration information in RMSI or OSI, the transmitting of selected synchronization signal block is obtained Power, and the Reference Signal Received Power of the synchronization signal block obtained according to measurement calculates path loss.Path loss calculation Mode are as follows: path loss (dB)=transmission power (dBm)-Reference Signal Received Power (dBm).

Terminal determines the transmission power of random access leader sequence according to path loss, and in the random of abovementioned steps determination Random access leader sequence determined by sending is accessed in channel.

Above-mentioned process can be described with Fig. 5.Wherein, described for determining the predetermined criterion of suitable synchronization signal block May include: 1. select synchronization signal block according to the Reference Signal Received Power of synchronization signal block.For example, selection reference signal connects Prominent synchronization signal block is received, or according to the threshold value predefined or base station configures, in Reference Signal Received Power height A synchronization signal block is randomly choosed with equiprobability in the synchronization signal block of the threshold value, if the reference without synchronization signal block is believed Number receive power be higher than the threshold value, then select the maximum synchronization signal block of Reference Signal Received Power.2. according to synchronization signal block Reference Signal Received Power and broadcast channel in Master Information Block or RMSI or OSI in the transmitting of synchronization signal block that carries Power information calculates the path loss of synchronization signal block, selects synchronization signal block according to path loss.For example, selection path damage The smallest synchronization signal block is consumed, or is lower than the synchronization signal block of the threshold value according to predetermined threshold value selection path loss, A synchronization signal block is therefrom chosen with equiprobability.If the path loss without synchronization signal block is lower than the threshold value, road is selected The smallest synchronization signal block is lost in diameter.

It should be noted that the transmission power information of synchronization signal block can also be transmitted in OSI in the present embodiment.

Embodiment two

In the present embodiment, a kind of configuration side of the transmission power of random access leader sequence of specific system introduction will be combined Method.In this implementation, is reached by the reference emission power of configuring preamble sequence and notify different synchronization signal blocks that there are different hairs The purpose of power is penetrated, so that terminal can select suitable random access preamble sequence when selecting particular sync signal block The transmission power of column.

Specifically, the transmission power of synchronous signal transmission block configures in RMSI or OSI.Transmission power configuration can be with It is rough configuration.Simultaneously in random access configuration information, carries and configured for the target received power on random access opportunity. By adjusting the transmission power of synchronization signal block and the target received power on random access opportunity, base station can configure different same It walks block and uses different transmission powers, while ensuring that terminal can correctly estimate the path loss of different synchronization signal blocks.

Specifically, the configuration information of the transmission power of synchronization signal block is sent in RMSI or OSI.Possible mode Are as follows:

1. configuring and notifying the transmission power of each synchronization signal block by the way of quantization or index.Can directly it lead to Know the transmission power of each synchronization signal block, or notify reference emission by way of default or notify in RMSI or OSI Power, and notify the power floating parameter of each synchronization signal block.Wherein, reference emission power can be true using preset mode It is fixed, it can also be configured in RMSI or OSI.

2. the synchronization signal block with similar transmission power is divided into one group, unified configuration and notice by way of grouping The transmission power of synchronization signal block in group.Synchronization signal block in group uses unified configuration, and configuration mode can be used directly The transmission power configuration of notice quantization, or sent out using the transmission power configuration in concordance list notice packet, or using benchmark Penetrate the configuration that power+power floating parameter configuration mode carries out transmission power, wherein reference emission power can be using default Mode determine, can also be configured in RMSI or OSI.

In mode 2, a kind of used mode of embodiment is can be used in the configuration mode of grouping.Relatively simple mode To be grouped according to the configuration of synchronization signal block group, i.e., the synchronization signal block of identical transmission power configuration will can be used to put To the position closed on, synchronization signal block group is formed.In this mode, each synchronization signal block configuration is suitable for the synchronization signal block The transmission power of each synchronization signal block in group.

In random access configuration information be configure on different synchronization signal blocks corresponding random access opportunity it is different just Beginning target leader sequence receives power, receives power calculation leader sequence according to the initial target leader sequence and receives target function Rate carries out the calculating of the transmission power of random access leader sequence in conjunction with path loss.Specifically, in conjunction with actual transmitting function The transmission power configured in rate and RMSI or OSI carries out the configuration that initial target leader sequence receives power.One is simply shown Example is that it is -110dBm, the transmitting of the synchronization signal block configured in RMSI or OSI that the desired leader sequence in base station, which receives power, Power is 45dBm, but since the configuration of transmission power is more rough, the transmitting function of the selected synchronization signal block of terminal The transmission power configured in rate and the RMSI or OSI that are configured is different, higher than the transmission power 1dB of configuration, therefore configuration just When beginning target leader sequence receives power, it is configured to -111dBm, that is, the initial target leader sequence configured receives power ratio expectation Leader sequence receive the low 1dB of power.

It should be noted that the initial target that the corresponding random access opportunity possible configuration of different synchronization signal blocks is different Leader sequence receives power.Specifically, a kind of possible configuration mode is, according to the indexed sequential of synchronization signal block, to configure Initial target leader sequence receives power sequence, corresponding to the synchronization signal block of each element representation respective index in sequence The initial target leader sequence on random access opportunity receives the Configuration Values of power.For example, for being there are 8 synchronization signal blocks System is answered when the initial target leader sequence for configuring this 8 synchronization signal blocks corresponding random access opportunity receives power sequence Configuration includes the sequence of 8 elements, such as: initial target leader sequence receives power are as follows: { a₀,a₁,a₂,a₃,a₄,a₅,a₆,a₇}。 Wherein, a_iUnit is dBm, the leading sequence of initial target that i-th of synchronization signal block of expression corresponding random access opportunity is configured Column receive power, 0≤i≤7.

The case where corresponding to identical random access opportunity for multiple synchronization signal blocks can still carry out just according to aforesaid way The configuration of beginning target leader sequence reception power.Another configuration mode is, before carrying out initial target for random access opportunity Lead the configuration of sequential reception power.Specifically, when configuring random access opportunity running time-frequency resource, while configuration each connects at random The initial target leader sequence for entering opportunity receives power.Or the numeral index on random access opportunity is carried out according to preset rules, Power sequence is received according to the number configuration target leader sequence on random access opportunity, the element in sequence is corresponding random access The target leader sequence on opportunity receives the configuration of power.One simple example is that base station configures 8 random access opportunitys, institute It is 8 that the target leader sequence of configuration, which receives power sequence length, and sequence is { b₀,b₁,b₂,b₃,b₄,b₅,b₆,b₇, wherein b_iIt is single Position is dBm, indicates that the initial target leader sequence that i-th of random access opportunity is configured receives power, 0≤i≤7.

Similar to the mode for being grouped configuration transmission power in embodiment one to synchronization signal block, can also be used to synchronization Block carries out transmission power configuration to the mode of random access opportunity grouping.Specifically, using approximately uniform transmitting The synchronization signal block that power or approximately uniform initial target leader sequence receive power configuration is configured in adjacent position, and Configuration packet mode and every group of initial target leader sequence receive power in RMSI or OSI.A kind of possible mode To configure the grouping of synchronization signal block by way of index sequence.A kind of possible mode is to send in RMSI or OSI point The information of index sequence in group and each grouping.One simple example is that grouping information information needed includes:

Number of packet

Group 1:{ be grouped in synchronization signal block index；

Group 2:{ be grouped in synchronization signal block index；

…

Group n:{ be grouped in synchronization signal block index.

Another packet mode is that the transmission power of each grouping is only notified to configure, i.e. notice power configuration argument sequence, Terminal determines selected transmission power configuration mode according to certain rule.A kind of possible mode is, terminal according to setting in advance Fixed criterion, and grouping number or synchronization signal block number, determine corresponding configuration parameter in power configuration argument sequence.Tool For body, the power configuration argument sequence in RMSI or OSI is { P₀,…,P_N-1, the N number of element of the sequence power, Mei Geyuan Element indicates a power configuration parameter.It is I for synchronization signal block index_SSSynchronization signal block, corresponding power configuration ginseng Indexes of the number in power configuration argument sequence are

N=mod (I_ss,N)

I.e. the selected power configuration parameter of the terminal is P_n。

The selection mode of another power configuration parameter is, is I for synchronization signal block index_SSSynchronization signal block, Index of the corresponding power configuration parameter in power configuration argument sequence be

The notice and configuration mode of above-mentioned packet mode and power can be used in combination.One simple example is, with Synchronization signal block group synchronizes the configuration of block group transmission power, i.e., each synchronization signal block in same synchronization signal block group It is configured using identical transmission power；Meanwhile inside synchronization signal block group, notice is further grouped with configuration or synchronous letter The initial target leader sequence of number block receives the configuration of power.

When using method provided by above-mentioned the present embodiment, the behavior of terminal side can be summarized as follows:

Terminal carries out the Master Information Block that initial access process, detection synchronization signal block, and read broadcast channel are carried Content.The Reference Signal Received Power obtained according to detection and predetermined criterion, determine suitable synchronization signal block.

Terminal receives the configuration information of power, Yi Jisui according to the initial target leader sequence in random access configuration information Machine access power climbs the information such as counter, calculates leader sequence target received power.In conjunction with the path loss being calculated, obtain Power is sent to leader sequence.Power is sent using this, in the random access channel that abovementioned steps determine determined by transmission Random access leader sequence.

Wherein, described for determining that the predetermined criterion of suitable synchronization signal block may include: 1. according to synchronization The Reference Signal Received Power of block selects synchronization signal block.For example, the maximum synchronous letter of selection Reference Signal Received Power Number block, or according to predefining or the threshold value of base station configuration, it is higher than the synchronization signal of the threshold value in Reference Signal Received Power A synchronization signal block is randomly choosed with equiprobability in block, if the Reference Signal Received Power without synchronization signal block is higher than the threshold Value, then select the maximum synchronization signal block of Reference Signal Received Power.2. according to the Reference Signal Received Power of synchronization signal block With the transmission power information of the synchronization signal block carried in the Master Information Block or RMSI or OSI in broadcast channel, synchronous letter is calculated The path loss of number block selects synchronization signal block according to path loss.For example, the selection the smallest synchronization signal block of path loss, Or select path loss to be lower than the synchronization signal block of the threshold value according to predetermined threshold value, therefrom one is chosen with equiprobability Synchronization signal block.If the path loss without synchronization signal block is lower than the threshold value, the smallest synchronization signal of path loss is selected Block.

In addition, the calculating of leader sequence target received power is as follows:

PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTa rg etPower_k +DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*power RampingStep；

Wherein, PREAMBLE_RECEIVED_TARGET_POWER is the leader sequence target received power being calculated, PreambleInitialReceivedTargetPower_k is the initial target configured in selected k-th of synchronization signal block Leader sequence receives power, and DELTA_PREAMBLE is power contorl parameters relevant to leader sequence format, POWER_ RAMPING_COUNTER is that power climbs counter, and for the number that recording power climbs, powerRampingStep is power It climbs compensation, is configured in random access configuration information.

After obtaining leader sequence target received power, power limit is sent according to maximum and power loss is calculated for sending The transmission power of random access leader sequence, specific as follows:

P_PRACH=min { P_CMAX,PREAMBLE_RECEIVED_TARGET_POWER+PL_k}[dBm]

Wherein, P_CMAXFor the maximum transmission power of terminal, PL_kFor the path damage for k-th of synchronization signal block being calculated Consumption.

It should be noted that the random access configuration information in the present embodiment is (including random access channel configuration information, preceding Lead sequence resources and initial target leader sequence receive power configuration information) in medium access control (Media Access Control, MAC) layer transmitted.After target leader sequence reception power is calculated in MAC, physical layer is passed to, by physics Layer calculates the final transmission power sent for random access leader sequence.

The case where climbing counter greater than 1 for power, i.e., attempt to fail for previous random access, re-initiates random The case where access procedure is attempted needs to determine a need for switching random access opportunity according to the last measurement result first Running time-frequency resource.Specifically, whether still terminal determines currently selected fixed synchronization signal block according to the last measurement result Meet predetermined synchronization signal block selection criterion.For example, predetermined threshold value is set, if Reference Signal Received Power is low In the threshold value, then it is assumed that the synchronization signal block is no longer suitable, reselects synchronization signal block according to aforementioned criteria；Or setting is pre- First determining criterion, if the path loss being calculated is higher than the threshold value, then it is assumed that the synchronization signal block is no longer suitable, according to preceding It states criterion and reselects synchronization signal block.

If having reselected synchronization signal block when random access reattempts to, then need according to the synchronization signal block Configuration information (including random access configuration information and transmission power configuration information) reselects random access opportunity time-frequency money Source, leader sequence resources, and the transmission power of random access leader sequence is recalculated, in the random access reselected Leader sequence is sent using the transmission power of the random access leader sequence recalculated on machine.

It should be noted that in the present embodiment, transmission power information, random access configuration information of synchronization signal block etc. with Machine accesses relevant configuration information etc., can also transmit in OSI.

Embodiment three

In the present embodiment, a kind of configuration side of the transmission power of random access leader sequence of specific system introduction will be combined Method.In this implementation, it is corresponding random that the synchronization signal block with different transmission power is adjusted by configuring power contorl parameters The transmission power on access opportunity.

A kind of possible implementation is to carry power contorl parameters in random access configuration information, has different hairs The synchronization signal block for penetrating power configures different power contorl parameters, for adjusting the path loss on different random access opportunity It calculates.

Specifically, power contorl parameters are carried in random access configuration information for adjusting random access leader sequence Transmission power.In the present embodiment, the instruction of synchronization signal block transmission power can be still sent in RMSI or OSI, for example, by using preceding State mode employed in embodiment.Unlike, in the present embodiment, the instruction of synchronization signal block transmission power can be using relatively thick Configuration mode slightly.The instruction that dibit is used for synchronization signal block transmission power is such as used only, or in biggish grouping Notify the transmission power configuration and instruction of synchronization signal block.

Entrained initial target leader sequence receives power parameter in random access configuration information, still can use Described in embodiment two, carried out according to the mode of synchronization signal block, the grouping of synchronization signal block or the grouping of random access opportunity Configuration.Unlike, more rough configuration mode can be used, it is larger for example, by using quantized interval, or include in grouping The more configuration mode of synchronization signal block.

Meanwhile in random access configuration information, power configuration parameter is carried.The parameter can be configured by synchronization signal block, I.e. different synchronization signal blocks configures identical or different power configuration parameter.The mode that concordance list can be used is configured.One A simple example is as shown in table 4.

Table 4: power contorl parameters signal

The index meter terminal and base station are it is known that base station configures corresponding power contorl parameters by notice index, eventually The corresponding power contorl parameters of respective index are known by way of tabling look-up in end.

In other configuration mode, the configuration of power contorl parameters is carried out by the way of directly quantifying, i.e., to power Control parameter uses the quantization of certain quantized interval, the power contorl parameters after configuration quantization.

The mode that argument sequence can be used in the configuration parameter is transmitted in RMSI or OSI or random access configuration information.I.e. Length and the consistent argument sequence of synchronization signal number of blocks are established, wherein each element, indicates the synchronization signal block of respective index The power contorl parameters of configuration.One simple example is that, for there are the systems of 8 synchronization signal blocks, establishing length is 8 Argument sequence: [c₀,…,c₇], wherein c_i, 0≤i≤7 are the power contorl parameters of i-th of synchronization signal block.

It is likely to result in biggish signaling overheads in such a way that each synchronization signal block configures, except synchronization signal block is only Outside vertical configuration power contorl parameters, another possibility is to be grouped synchronization signal block, and power control is carried out in a manner of grouping The configuration of parameter processed.The mode of grouping can refer to mode described in embodiment one or embodiment two.

The parameter being added in the present embodiment can be used for carrying out the calculating of target received power, or transmitting in MAC layer To physical layer, it is adjusted for the transmission power directly to random access leader sequence.

If carrying out the calculating of target received power in MAC layer, include in the configuration information provided in RMSI or OSI Target received power adjusting parameter, the target received power being calculated to adjust MAC layer, so that Indirect method terminal is counted The path loss of calculation.Specifically, it is assumed that target received power adjusting parameter indicates with Adjust_Preamble_Power, then The target received power calculation formula of MAC are as follows:

PREAMBLE_RECEIVED_TARGET_POWER=preambleInitialReceivedTa rg etPower+ DELTA_PREAMBLE+(POWER_RAMPING_COUNTER–1)*powerRa mpingStep+Adjust_Preamble_ Power；

In above formula, parameter preambleInitialReceivedTargetPower can be to be notified by synchronization signal block, It can also be grouped according to synchronization signal block and be configured and notified；Likewise, parameter Adjust_Preamble_Power can also be with It is notified by synchronization signal block, can also be grouped according to synchronization signal block and be configured and notified.It is calculated by above-mentioned parameter Leader sequence target received power is obtained, physical layer is passed to by MAC layer, in conjunction with path loss calculation random access is calculated The transmission power of leader sequence.

If in the transmission power of physical layer adjustment random access leader sequence, the configuration provided in RMSI or OSI It include that leader sequence sends power adjustment parameters in information, which needs to pass to physical layer by high level, by physical layer tune The transmission power of whole random access leader sequence.Specifically, the leader sequence target received power transmitting that MAC layer is calculated To physical layer, physical layer sends power calculation path according to measurement result, high-rise transmitting or preset synchronization signal block and damages Consumption, and according to the transmission power of power adjustment parameters calculating random access leader sequence.Specific formula is described as follows:

P_PRACH=min { P_CMAX,PREAMBLE_RECEIVED_TARGET_POWER+PL_k

+δ_k}[dBm]

Wherein, δ_kThe power adjustment parameters configured by k-th of synchronization signal block.Above formula assumes terminal selection k-th together Block is walked, carries out random access procedure on corresponding random access opportunity.

In the present embodiment, the behavior of terminal can be similar with previous embodiment, can be summarized as follows:

Terminal receives the configuration information of power, Yi Jisui according to the initial target leader sequence in random access configuration information Machine access power climbs the information such as counter, calculates leader sequence target received power.In conjunction with the path loss being calculated, obtain To the transmission power of random access leader sequence.Power is sent using this, is sent out in the random access channel that abovementioned steps determine Send identified random access leader sequence.

The present invention also provides a kind of sending devices of random access leader sequence, as shown in Figure 6, comprising:

Detection unit 61 obtains Reference Signal Received Power for detecting synchronization signal block；

First processing units 62 for determining object synchronization block according to the Reference Signal Received Power, and obtain Entrained configuration information in the object synchronization block；

The second processing unit 63, for determining random access channel and random access preamble sequence according to the configuration information It arranges, and determines the transmission power of the random access leader sequence according to the configuration information and Reference Signal Received Power；

Transmission unit 64, before sending the random access on the random access channel according to the transmission power Lead sequence.

Based on method and device provided by aforementioned present invention, it can adapt to different send waves in 5G multi-beam operating system Beam (corresponding to different synchronization signal blocks) uses the case where different transmission power, and can be completed with lower signaling overheads Difference sends the configuration of power, to improve the flexibility of system and the experience of terminal.

Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram and/or flow graph disclosed by the invention.

Wherein, the modules of apparatus of the present invention can integrate in one, can also be deployed separately.Above-mentioned module can close And be a module, multiple submodule can also be further split into.

It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, module or stream in attached drawing Journey is not necessarily implemented necessary to the present invention.

It will be appreciated by those skilled in the art that the module in device in embodiment can describe be divided according to embodiment It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.

Aforementioned present invention serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.

Disclosed above is only several specific embodiments of the invention, and still, the present invention is not limited to this, any ability What the technical staff in domain can think variation should all fall into protection scope of the present invention.

Claims

1. a kind of sending method of random access leader sequence characterized by comprising

Object synchronization block is determined according to the Reference Signal Received Power, and is obtained and taken in the object synchronization block The configuration information of band；

Random access channel and random access leader sequence are determined according to the configuration information, and according to the configuration information and ginseng Examine the transmission power that signal reception power determines the random access leader sequence；

2. the method as described in claim 1, which is characterized in that described to determine that target is same according to the Reference Signal Received Power Walk block, comprising:

Selection has synchronization signal block corresponding to the Reference Signal Received Power of maximum value in each Reference Signal Received Power As object synchronization block；Or,

Multiple all Reference Signal Received Power institutes higher than the first preset threshold are filtered out in each Reference Signal Received Power Corresponding synchronization signal block, and a synchronization signal block is randomly choosed with equiprobability in the multiple synchronization signal blocks filtered out As object synchronization block；If there is no the reference signals higher than first preset threshold in each Reference Signal Received Power Power is received, then selects synchronization signal block corresponding to the Reference Signal Received Power with maximum value as object synchronization signal Block.

3. the method as described in claim 1, which is characterized in that described to determine that target is same according to the Reference Signal Received Power Walk block, comprising:

According to the hair indicated in configuration information entrained in each Reference Signal Received Power and its corresponding synchronization signal block Power is penetrated, the path loss of each synchronization signal block is calculated, according to the path loss selection target synchronization signal block.

4. method as claimed in claim 3, which is characterized in that described according to the path loss selection target synchronization signal Block specifically includes:

Filter out synchronization signal block corresponding to multiple path losses lower than the second preset threshold in each path loss, and A synchronization signal block is randomly selected as object synchronization block using equiprobability in the multiple synchronization signal blocks filtered out；If There is no the path loss lower than second preset threshold in each path loss, then the smallest synchronization signal of path loss is selected Block is as object synchronization block.

5. such as method of any of claims 1-4, which is characterized in that the configuration information is power configuration information, The transmission power that random access leader sequence is determined according to the configuration information and Reference Signal Received Power, comprising:

The object synchronization block is calculated according to the transmission power of the object synchronization block and Reference Signal Received Power Path loss；

Random access leader sequence is obtained according to the path loss calculation of the power configuration information and the object synchronization block Transmission power.

6. method as claimed in claim 5, which is characterized in that it is described that transmission power is determined according to the power configuration information, Including following any mode:

Obtain the transmission power of the object synchronization block；

7. method as claimed in claim 6, which is characterized in that the transmission power for obtaining the object synchronization block, Include:

8. method as claimed in claim 6, which is characterized in that the transmission power for obtaining the object synchronization block, Include:

Obtain the power configuration argument sequence for including in the power configuration information；Wherein, the power configuration argument sequence is The sequence that the transmission power information corresponding to synchronization signal block group each in current power group forms；According to object synchronization block Index information and the power configuration argument sequence determine the transmission power.

9. method as claimed in claim 6, which is characterized in that the transmission power for obtaining the object synchronization block, Include:

Obtain the numbers of the power packages for including in the power configuration information, the synchronization signal block index information in each power packages, Transmission power configuration information corresponding to synchronization signal block index sequence and each power packages；Wherein, a power packages are by multiple Synchronization signal block is constituted, and the transmission power configuration information of all synchronization signal blocks in each power packages is identical；The synchronous letter Number block index sequence is the sequence as composed by multiple index informations using the synchronization signal block of identical transmission power；

According to the synchronization signal block index information and synchronization signal block in the index information of object synchronization block, each power packages Index sequence filters out and the matched power packages of object synchronization block；

10. method as claimed in claim 9, which is characterized in that if the synchronization signal block number in each power packages is not identical, It further include the synchronization signal block number in each power packages in the power configuration information.

11. method as claimed in claim 6, which is characterized in that the transmission power for obtaining the object synchronization block, Include:

Obtain the index letter of the number for the power packages for including in the power configuration information, synchronization signal block group in each power packages Transmission power configuration information corresponding to each synchronization signal block group in breath and each power packages；Wherein, a power packages are by multiple Synchronization signal block group is constituted, and the transmission power of all synchronization signal blocks in each synchronization signal block group of each power packages matches confidence Manner of breathing is same；

Gone out and this according to the synchronization signal block group index information sifting in the index information of object synchronization block and each power packages Synchronization signal block group in the matched power packages of object synchronization block；

12. method as claimed in claim 6, which is characterized in that the transmission power for obtaining the object synchronization block, Include:

Obtain transmission power configuration information corresponding to the power packages for including in the power configuration information；Wherein, a power Group is made of multiple synchronization signal block groups, the transmitting function of all synchronization signal blocks in each synchronization signal block group of each power packages Rate configuration information is identical；

13. method as claimed in claim 6, which is characterized in that described true according to reference emission power and power floating parameter The fixed transmission power, comprising:

Power floating parameter map listing is inquired according to second index information, obtains the function of corresponding second index information Rate floating parameter；

The transmitting function of the object synchronization block is calculated according to the reference emission power of the quantization and power floating parameter Rate.

14. method as claimed in claim 6, which is characterized in that described true according to reference emission power and power floating parameter The fixed transmission power, comprising:

The object synchronization block is calculated according to the power floating parameter of the reference emission power of the quantization and quantization Transmission power.

15. method as claimed in claim 6, which is characterized in that described true according to reference emission power and power floating parameter The fixed transmission power, comprising:

The transmitting function of the object synchronization block is calculated according to preset reference emission power and the power floating parameter Rate.

16. method as claimed in claim 6, which is characterized in that described true according to reference emission power and power floating parameter The fixed transmission power, comprising:

Reference emission power map listing is inquired according to the third index information, obtains the base of the corresponding third index information Quasi- transmission power；

17. method as claimed in claim 6, which is characterized in that described true according to reference emission power and power floating parameter The fixed transmission power, comprising:

18. method as claimed in claim 5, which is characterized in that described according to the power configuration information and the object synchronization The path loss calculation of block obtains the transmission power of random access leader sequence, comprising:

The transmission power of random access leader sequence is obtained according to the leader sequence target received power and path loss calculation.

19. method as claimed in claim 18, which is characterized in that further include:

The leader sequence target received power or the random access leader sequence are adjusted according to the power contorl parameters Send power.

20. method as claimed in claim 19, which is characterized in that described to obtain the power carried in the power configuration information Control parameter, comprising:

Obtain the 4th index information of the object synchronization block entrained in the power configuration information；According to the described 4th Index information inquires power contorl parameters map listing, obtains the power contorl parameters of corresponding 4th index information.

21. a kind of sending device of random access leader sequence characterized by comprising

First processing units for determining object synchronization block according to the Reference Signal Received Power, and obtain the mesh Mark configuration information entrained in synchronization signal block；

The second processing unit, for determining random access channel and random access leader sequence, and root according to the configuration information The transmission power of the random access leader sequence is determined according to the configuration information and Reference Signal Received Power；

Transmission unit, for sending the random access preamble sequence on the random access channel according to the transmission power Column.