CN110267346A - A kind of communication means, device and storage medium - Google Patents

A kind of communication means, device and storage medium Download PDF

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Publication number
CN110267346A
CN110267346A CN201910357243.3A CN201910357243A CN110267346A CN 110267346 A CN110267346 A CN 110267346A CN 201910357243 A CN201910357243 A CN 201910357243A CN 110267346 A CN110267346 A CN 110267346A
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carrier wave
rsrp
thresholding
terminal device
carrier
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CN201910357243.3A
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CN110267346B (en
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栗彦斌
彭炳光
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • 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

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

Abstract

The application provides a kind of communication means, device and storage medium, wherein method includes that terminal device determines first carrier selection thresholding and the second carrier wave selection thresholding, determine downlink-Reference Signal Received Power, determine that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, then determine the descending slope of DL-RSRP, if terminal device determines that the descending slope of DL-RSRP is greater than first slope threshold value, random access is carried out by SUL carrier wave；First carrier selects thresholding to select thresholding less than the second carrier wave.Based on the program, terminal device, which passes through, determines that DL-RSRP and first carrier select thresholding and the second carrier wave to select thresholding, and the relationship of the descending slope of DL-RSRP and first slope threshold value, branch scape selects SUL carrier wave or NUL carrier wave Network with Random Multiple Access System equipment, helps to improve the success rate of terminal device random access.

Description

A kind of communication means, device and storage medium
Technical field
This application involves field of communication technology more particularly to a kind of communication means, device and storage medium.
Background technique
In mobile communication system, in order to improve in (new radio, NR) system of newly eating dishes without rice or wine uplink coverage not The problem of foot introduces supplement uplink on the basis of former normal uplink (normal uplink, NUL) carrier wave (supplement uplink, SUL) carrier wave.Since SUL carrier wave usually configures lower frequency range, the covering of SUL carrier wave Range it is larger.Random access is executed by selection SUL in limited time, can be passed through when NUL carrier wave uplink is covered.
In the prior art, when terminal device is when serving cell initiates random access, terminal device is if it is determined that downlink path When Reference Signal Received Power (reference signal received power, RSRP) is lost less than thresholding, directly select SUL carrier wave executes random access；If it is determined that RSRP is not less than thresholding, then random access is executed by NUL carrier wave.
However, due to not necessarily having reciprocity, such as frequency division duplex between up channel and down channel The NR carrier wave of (frequency division duplexing, FDD) mode, if only judged by downlink path loss RSRP Whether NUL is selected to access, uplink path loss may be caused to have greatly changed due to the movement of terminal, still select NUL at this time Access, will lead to terminal device uplink random access failure.
Summary of the invention
The application provides a kind of communication means, device and storage medium, for improving the success of terminal device random access Rate.
In a first aspect, the application provides a kind of communication means, this method includes that terminal device determines that first carrier selects door Limit and the second carrier wave select thresholding, determine downlink-Reference Signal Received Power (downlink-reference signal Receiving power, DL-RSRP), however, it is determined that DL-RSRP is greater than first carrier selection thresholding and selects less than the second carrier wave Thresholding, it is determined that the descending slope of DL-RSRP, if terminal device determines that the descending slope of DL-RSRP is greater than first slope threshold value, Random access is then carried out by SUL carrier wave；Wherein, first carrier selection thresholding selects thresholding less than the second carrier wave.
Based on the program, terminal device, which passes through, determines that DL-RSRP and first carrier select thresholding and the second carrier wave to select door The relationship of the relationship of limit and the descending slope of DL-RSRP and first slope threshold value, to determine that terminal device is covered in cell downlink The position of lid and the rate mobile to cell boarder, so that it is determined that terminal device be carried out by SUL carrier wave or NUL carrier wave with Machine access.When terminal device determines that DL-RSRP greater than first carrier selection thresholding and less than the second carrier wave selection thresholding, illustrates end End equipment be in NUL covering range, and determine DL-RSRP descending slope be greater than first slope threshold value when, illustrate terminal Equipment fast moves on the boundary towards MPS process, it is understood that is that terminal device is quickly leaving NUL covering Range, under the scene, when terminal device carries out random access by SUL carrier wave, since the coverage area of SUL is larger, Help to improve the success rate of terminal device random access, it helps reduce the delay of terminal device uplink service.
In one possible implementation, if the terminal device determines that the DL-RSRP is greater than the first carrier It selects thresholding and is less than second carrier wave selection thresholding and determines that the descending slope of DL-RSRP is not more than first slope threshold value, It then attempts to carry out random access by NUL carrier wave.Under the scene, illustrate that terminal device is in the range of NUL covering, and not fast Speed leaves the range of NUL covering, therefore, can carry out random access by NUL carrier wave.
In one possible implementation, if terminal device determines that DL-RSRP selects thresholding not less than the second carrier wave, It attempts to carry out random access by NUL carrier wave.Under the scene, illustrate that terminal device is in the preferable area of MPS process signal Domain, i.e. NUL uplink quality are preferable.
In one possible implementation, if terminal device determines that DL-RSRP selects thresholding no more than first carrier, Random access is carried out by SUL carrier wave.Under the scene, illustrates that NUL uplink is second-rate, connect at random by SUL carrier wave Enter the success rate of random access can be improved.
In one possible implementation, terminal device can will directly receive the first carrier from the network equipment and select Thresholding selects thresholding as determining first carrier.
In one possible implementation, terminal device determines that the second carrier wave selection thresholding may include following three kinds of realizations Mode thereby may be ensured that determining the second carrier wave selection thresholding is more appropriate accurate.
Implementation one: terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than When frequency threshold value, the statistical result of the corresponding DL-RSRP of n times is determined as the second carrier wave selection thresholding, N is positive integer.
Implementation two: terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than When frequency threshold value, the statistical result of M corresponding DL-RSRP is determined as the second carrier wave selection thresholding, M is positive integer.
Implementation three: in preset duration, terminal device passes through industry in NUL carrier processing for Q times in historical information The transmission power of business reaches the statistical result of corresponding DL-RSRP when maximum value, is determined as the second carrier wave selection thresholding, Q For positive integer.
Second aspect, the application provide a kind of communication means, and this method includes that terminal device determines that DL-RSRP and third are carried Wave selects thresholding, if terminal device determines that timer has not timed out and DL-RSRP is less than third carrier wave and selects thresholding, it is determined that DL- The descending slope of RSRP passes through SUL carrier wave if terminal device determines that the descending slope of DL-RSRP is greater than the second slope threshold value Random access is carried out, limitation carries out random access by normal uplink NUL carrier wave in the timing length of timer.
Based on the program, terminal device can be by the position of the timer of setting, terminal device in cell coverage area, shifting Dynamic direction and rate combines, and branch scape selects NUL carrier wave or SUL carrier wave to initiate random access.Determine when terminal device determines When device have not timed out, DL-RSRP be less than third carrier wave selection thresholding and determine DL-RSRP descending slope be greater than the second slope threshold Value, illustrates that NUL uplink is second-rate, and terminal is initiated to select SUL carrier wave when random access, in this way, it is random that terminal device can be improved The success rate of access.
In one possible implementation, terminal device may also receive from the first carrier selection door of the network equipment Limit, first carrier select thresholding to be less than third carrier wave and select thresholding, however, it is determined that the descending slope of DL-RSRP is not more than the second slope Threshold value and DL-RSRP are not less than first carrier and select thresholding, then can further attempt to carry out random access by NUL carrier wave. It is also understood that terminal device determine DL-RSRP not less than first carrier selection thresholding, be less than third carrier wave selection thresholding, And the descending slope of DL-RSRP is not more than the second slope threshold value, then illustrates that terminal device is in the preferable area of MPS process signal Domain, and it is quickly not mobile to cell boarder, therefore, it can attempt to carry out random access by NUL carrier wave.
In conjunction with above-mentioned, if terminal device determines the descending slope of DL-RSRP no more than the second slope threshold value and DL-RSRP Thresholding is selected no more than first carrier, then random access can be carried out by SUL carrier wave.It is also understood that terminal device is true DL-RSRP is determined no more than the descending slope of first carrier selection thresholding and DL-RSRP no more than the second slope threshold value, illustrates end End equipment is in the region of MPS process dtr signal, and quickly mobile to cell boarder, therefore, can by SUL carrier wave into Row random access helps to improve the success rate of terminal device random access.
In addition, can lead to if terminal device determines timer expiry and DL-RSRP is less than first carrier and selects thresholding It crosses SUL carrier wave and carries out random access.Under the scene, illustrate that NUL uplink is second-rate, carrying out random access by SUL carrier wave can To improve the efficiency of random access.
In addition, if terminal device determines timer expiry and DL-RSRP is not less than first carrier selection thresholding, it tries Random access is carried out by NUL carrier wave.Under the scene, illustrate that NUL uplink quality is preferable, random access is carried out by NUL carrier wave The efficiency of random access can be improved.
Terminal device can start timer when meeting following either condition:
Condition 1: terminal device carries out random access failure by NUL carrier wave.
Condition 2: terminal device carries out random access success by NUL carrier wave and access reaches maximum transmission power.
Condition 3: terminal device carries out random access success by NUL carrier wave and processing uplink service reaches emission maximum Power.
In one possible implementation, terminal device can be determined as follows third carrier wave selection thresholding, So that the third carrier wave selection threshold value determined is more appropriate suitable.
Implementation A: terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than When frequency threshold value, the statistical result of the corresponding DL-RSRP of n times is determined as third carrier wave selection thresholding, N is positive integer.
Implementation B: terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than When frequency threshold value, the statistical result of M corresponding DL-RSRP is determined as third carrier wave selection thresholding, M is positive integer.
Implementation C: in preset duration, terminal device passes through NUL carrier processing uplink service for Q times in historical information Transmission power reach the statistical result of corresponding DL-RSRP when maximum value, be determined as third carrier wave selection thresholding, Q is Positive integer.
The third aspect, the application provide a kind of communication device, which includes processor and transceiver.Optionally, It can also include memory.When it includes memory, memory is for storing instruction；Processor is used for according to execution memory The instruction of storage, and control transceiver and carry out signal reception and signal transmission, when processor executes the instruction of memory storage, Communication device can be used for executing any method in above-mentioned first aspect or first aspect or can be used for executing above-mentioned second Any method in aspect or second aspect.
Fourth aspect, the application provide a kind of communication device, for realizing appointing in above-mentioned first aspect or first aspect It anticipates a kind of method, or for realizing any one method in above-mentioned second aspect or second aspect, including corresponding function Module is respectively used to realize the step in above method.Function can also be executed corresponding by hardware realization by hardware Software realization.Hardware or software include one or more modules corresponding with above-mentioned function.
It include processing unit and Transmit-Receive Unit, these lists in the structure of communication device in a kind of possible embodiment Member can execute corresponding function in above method example, referring specifically to the detailed description in method example, be not repeated herein.
5th aspect, this application provides a kind of chip systems, including processor.Optionally, it may also include memory, deposit Reservoir is for storing computer program, and processor from memory for calling and running computer program, so that being equipped with core The communication device of piece system executes any one method in above-mentioned first aspect or first aspect or to be equipped with core The communication device of piece system executes any one method in above-mentioned second aspect or second aspect.
6th aspect, the application provide a kind of computer storage medium, instruction are stored in computer storage medium, when it When running on computers, so that computer executes the side in any possible implementation of first aspect or first aspect Method or computer is made to execute the method in any possible implementation of second aspect or second aspect.
7th aspect, the application provide a kind of computer program product comprising instruction, when run on a computer, So that computer executes the method in any possible implementation of first aspect or first aspect or holds computer Method in any possible implementation of row second aspect or second aspect.
Detailed description of the invention
Fig. 1 is a kind of communication system architecture schematic diagram provided by the present application；
Fig. 2 is a kind of communication means flow diagram provided by the present application；
Fig. 3 is another communication means flow diagram provided by the present application；
Fig. 4 is another communication means flow diagram provided by the present application；
Fig. 5 is another communication means flow diagram provided by the present application；
Fig. 6 is a kind of communication apparatus structure schematic diagram provided by the present application；
Fig. 7 is a kind of communication apparatus structure schematic diagram provided by the present application.
Specific embodiment
Fig. 1 illustrates a kind of communication system architecture schematic diagram provided by the present application.The communication system may include The network equipment and terminal device.Fig. 1 illustrates so that communication system includes a network equipment 101 and a terminal device 102 as an example. The communication system can be 5G communication system, and (such as the fusion of (new radio, NR) system of newly eating dishes without rice or wine, a variety of communication technologys is logical Letter system (such as communication system of LTE technology and NR technological incorporation), or the future may appear other communication systems etc., this Shen Please without limitation.The form and quantity of the network equipment and terminal device shown in Fig. 1 are only used for illustrating, and do not constitute to this Shen Please embodiment restriction.
Wherein, the 1) network equipment, also known as wireless access network (radio access network, RAN) equipment is a kind of The equipment that terminal device is linked into wireless network, for example including but be not limited to: the network equipment or base station in 5G network are (such as GNB), the base station in future evolution network, transmission node or transmitting-receiving point (transmission reception point, TRP or Person TP), radio network controller (radio network controller, RNC), network equipment controller (base Station controller, BSC), network equipment sending and receiving stations (base transceiver station, BTS), home network Equipment (for example, home evolved nodeB or home node B, HNB), Base Band Unit (baseband unit, BBU), Support while configuring other TDD (TimeDivision Duplexing, the time division duplex) system or support of UL and SUL Other FDD (Frequency Division Duplexing, frequency division duplex) system of UL and SUL etc. is configured simultaneously.
2) terminal device is a kind of equipment with wireless communication function, such as can be with wireless communication function Handheld device, mobile unit, wearable device (for example, smartwatch, Intelligent bracelet, pedometer etc.), mobile Internet Equipment (mobile internet device, MID), calculates equipment or is connected to radio modem unmanned machine equipment Terminal device etc. in other processing equipments, 5G network or future evolution network.Terminal device can be named in different networks Different titles is done, such as: it is terminal device, access terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, long-range Terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent or user apparatus, cellular phone, wireless electricity Words, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless Local loop, WLL) it stands, personal digital assistant (personaldigital assistant, PDA).
Based on system architecture shown in FIG. 1, a kind of possible application scenarios are provided for the application: in NR system, being introduced SUL carrier wave, the as same cell configure a descending carrier and two up-link carriers, cover energy with the uplink of lifting system Power.Wherein, above-mentioned two up-link carrier is respectively as follows: SUL carrier wave and NUL carrier wave (also referred to as Your Majesty's row non-SUL carrier wave).It is above-mentioned The affiliated frequency range of SUL carrier wave is lower than the affiliated frequency range of NUL carrier wave, for example, the SUL carrier wave of above-mentioned NR system can be upper with LTE system Row carrier wave is in same frequency range.Illustratively, in NR system, base station is the NUL carrier wave and downlink of a cell distribution (downlink, DL) carrier wave is in same frequency range and is located at higher frequency band, and frequency range and the DL carrier wave of SUL carrier wave do not belong to In same frequency range, and it is located at compared with low-frequency range.The same moment, terminal device can choose SUL carrier wave or NUL carrier wave into Row random access or the number for carrying out Physical Uplink Shared Channel (physical uplinkshared channel, PUSCH) According to transmission.
In the application, frequency belonging to SUL carrier wave is lower than frequency belonging to NUL carrier wave, therefore the coverage area of SUL is greater than The coverage area of NUL.When terminal device is located in NUL coverage area, terminal device can carry out random access by NUL； When terminal device leaves NUL coverage area and is still located at SUL coverage area, terminal device can be connect at random by SUL Enter.
Based on above content, as shown in Fig. 2, being a kind of communication means flow diagram provided by the present application.In the example Terminal device can be the terminal device 102 in above-mentioned Fig. 1, and following methods process can also be by the processing in terminal device 102 Chip executes.Method includes the following steps:
Step 201, terminal device determines first carrier selection thresholding and the second carrier wave selection thresholding.
Wherein, first carrier selection thresholding selects thresholding less than the second carrier wave.First carrier selection thresholding may be existing There is threshold value SUL selection thresholding (RSRP-Threshold SSB-SUL) in agreement.First carrier selection thresholding can be net The empirical value that network equipment is determined according to historical information.
In one possible implementation, first carrier selection thresholding can be terminal device and obtain from the network equipment 's.It is the network equipment for terminal equipment configuration that i.e. first carrier, which selects thresholding,.It is alternatively possible to be that terminal device is set to network When preparation plays random access, the network equipment sends first carrier to terminal device and selects thresholding.Correspondingly, terminal device, which receives, comes The first carrier of automatic network equipment selects thresholding.
In one possible implementation, the second carrier wave selection thresholding can be the determination of terminal device.For example, terminal Equipment can determine that the second carrier wave selects thresholding according to historical information, the following is three kinds of possible implementations provided by the present application.
Implementation one
When terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of n times is determined as the second carrier wave selection thresholding, N is positive integer.
It is also understood that when terminal device carries out random access by NUL carrier wave, when recording progress random access every time Corresponding DL-RSRP determines the statistical result of the corresponding DL-RSRP of n times when frequency of failure N is more than frequency threshold value.Than Such as, when terminal device is by NUL carrier wave progress random access, record corresponds to DL-RSRP_11 when failing for the first time, second of mistake Correspond to DL-RSRP_12 when losing, when third time failure corresponds to DL-RSRP_13, and when the 4th failure corresponds to DL-RSRP_14, n times The statistical result of corresponding DL-RSRP=(DL-RSRP_11+DL-RSRP_12+DL-RSRP_13+DL-RSRP_14)/4, I.e. the second carrier wave selects thresholding for (DL-RSRP_11+DL-RSRP_12+DL-RSRP_13+DL-RSRP_14)/4.For another example, Nd carrier selection thresholding is also possible to the median of DL-RSRP_11, DL-RSRP_12, DL-RSRP_13 and DL-RSRP_14.
Implementation two
When terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of M corresponding DL-RSRP is determined as the second carrier wave selection thresholding, M is positive integer.Optionally, M and N Can be identical, it can not also be identical.
It is also understood that when terminal device carries out random access by NUL carrier wave, it is possible that the case where retrying, It is corresponding DL-RSRP that record retries every time, when frequency of failure M is more than frequency threshold value, determines M corresponding DL- The statistical result of RSRP.For example, record corresponds to DL- when retrying for the first time when terminal device carries out random access by NUL carrier wave RSRP_21 corresponds to DL-RSRP_22 when retrying for the second time, correspond to DL-RSRP_23 when retrying for the third time, when retrying for the 4th time pair Answer DL-RSRP_24, statistical result=(DL-RSRP_21+DL-RSRP_22+DL-RSRP_ of the corresponding DL-RSRP of n times 23+DL-RSRP_24)/4, i.e., the second carrier wave selects thresholding for (DL-RSRP_21+DL-RSRP_22+DL-RSRP_23+DL- RSRP_24)/4.For another example, the second carrier wave selection thresholding be also possible to DL-RSRP_21, DL-RSRP_22, DL-RSRP_23 and The median of DL-RSRP_24.
Implementation three
In preset duration, terminal device passes through Q times in historical information the transmission power of NUL carrier processing uplink service The statistical result for reaching corresponding DL-RSRP when maximum value is determined as the second carrier wave selection thresholding, and Q is positive integer.It is optional Ground, Q and M can be identical, can not also be identical.Q and N can be identical, can not also be identical.
It is also understood that record transmission power reaches maximum value when terminal device passes through NUL carrier processing uplink service When corresponding DL-RSRP, in preset duration content, terminal device reaches transmitting by NUL carrier processing uplink service for the first time Corresponded to when power maximum value DL-RSRP_31, second corresponding DL-RSRP_32, the corresponding DL-RSRP_33 of third time, the 4th time it is right DL-RSRP_34 is answered, then the second carrier wave selects thresholding for (DL-RSRP_31+DL-RSRP_32+DL-RSRP_33+DL-RSRP_ 34)/4.For another example, the second carrier wave selection thresholding is also possible to DL-RSRP_31+DL-RSRP_32+DL-RSRP_33+DL- The median of RSRP_34.
Step 202, terminal device determines DL-RSRP.Herein, terminal device can receive down according to from the network equipment The intensity of row-reference signal determines downlink-Reference Signal Received Power DL-RSRP.
There is no sequencing between above-mentioned steps 201 and step 202, execute step 202 after step 201 can be first carried out, Step 201 is executed after step 202 can also be first carried out；Or step 201 and step 202 execute together.
Step 203, if terminal device determines that DL-RSRP is greater than first carrier selection thresholding and selects door less than the second carrier wave Limit, it is determined that the descending slope of DL-RSRP.
If terminal device determines that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, say Bright DL-RSRP is reducing, i.e., terminal device is in the Boundary Moving to MPS process, and therefore, the descending slope of DL-RSRP can be with table The terminal device rate mobile to cell boarder is shown.When terminal device determine DL-RSRP be greater than first carrier selection thresholding and Thresholding is selected less than the second carrier wave, illustrates that terminal device is in the position of cell coverage area dtr signal, if terminal device is again When quickly to the Boundary Moving of cell coverage area, random access can be carried out by SUL carrier wave, be connect at random with improving terminal device The success rate entered.
Illustratively, terminal device determines the first moment T1Corresponding DL-RSRP_1, the T at the second moment2Corresponding DL-RSRP_ 2, the then descending slope of DL-RSRP=(RSRP_1-RSRP_2)/(T2-T1)。
Step 204, if terminal device determines that the descending slope of DL-RSRP is greater than first slope threshold value, pass through SUL carrier wave Carry out random access.
Wherein, first slope threshold value can be what terminal device was obtained according to historical information, and terminal device determines DL-RSRP Descending slope be greater than first slope threshold value, can illustrate that terminal device quickly mobile to cell boarder, can pass through SUL carrier wave Random access is carried out, to improve the success rate of terminal device random access.SUL carrier wave is referred to as SUL frequency point, can be net Network equipment is sent to terminal device.SUL frequency point and first carrier selection thresholding can be sent to terminal by the network equipment together Equipment.SUL frequency point can also be individually sent to terminal device by the network equipment, and the application does not limit this.
From above-mentioned steps 201 to step 204 as can be seen that terminal device, which passes through, determines that DL-RSRP and first carrier are selected The descending slope of the relationship and DL-RSRP of thresholding and the second carrier wave selection thresholding and the relationship of first slope threshold value, to determine Terminal device is in the position that cell downlink covers and the rate mobile to cell boarder, so that it is determined that terminal device is to pass through SUL Carrier wave or NUL carrier wave carry out random access.When terminal device determines that DL-RSRP is greater than first carrier selection thresholding and less than the Nd carrier selects thresholding, illustrates that terminal device be in that MPS process is more not good enough, and determines the descending slope of DL-RSRP greater than the When one slope threshold value, illustrate that terminal device fast moves on the boundary towards MPS process, under the scene, terminal device passes through When SUL carrier wave carries out random access, since the coverage area of SUL is larger, help to improve terminal device random access Success rate, it helps reduce the delay of terminal device uplink service.
As shown in figure 3, for another communication means flow diagram provided by the present application.Terminal device can be in the example It is the terminal device 102 in above-mentioned Fig. 1, the terminal device being also possible in above-mentioned Fig. 2.Following methods process can also be by terminal Processing chip in equipment 102 executes.Method includes the following steps:
Step 301, terminal device determines first carrier selection thresholding and the second carrier wave selection thresholding.Wherein, first carrier Thresholding is selected to select thresholding less than the second carrier wave.The step 301 can be found in the introduction of above-mentioned steps 201, and details are not described herein again.
Step 302, terminal device determines DL-RSRP.The step 302 can be found in the introduction of above-mentioned steps 202, herein no longer It repeats.
Step 303, terminal device determines the relationship of DL-RSRP and first choice thresholding and the second selection thresholding.If it is determined that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, thens follow the steps 304；If it is determined that DL-RSRP Thresholding is selected not less than the second carrier wave, thens follow the steps 305；If it is determined that DL-RSRP selects thresholding no more than first carrier, then hold Row step 306.
In one possible implementation, terminal device can be first determine DL-RSRP with and second select thresholding Relationship, if thening follow the steps 305 when not less than the second selection thresholding, if when less than the second selection thresholding, then determine DL-RSRP With the relationship with first choice thresholding.
Herein, however, it is determined that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, illustrates terminal Equipment is in the range of NUL covering, but NUL uplink quality is not preferably, directly to attempt NUL access at this time, may lead Cause access failure, it is also necessary to further determine that terminal device whether quickly to the Boundary Moving of cell.If it is determined that DL-RSRP is not Less than the second selection thresholding, illustrate that NUL uplink quality is preferable, i.e., terminal device is in the preferable region of MPS process signal, can To carry out random access by NUL carrier wave.If it is determined that DL-RSRP selects thresholding no more than first carrier, illustrate at terminal device In the region of MPS process dtr signal, i.e. NUL uplink is second-rate, and SUL carrier wave is selected to carry out random access.
Step 304, terminal device determines the descending slope of DL-RSRP, executes step 307 after the step 304.
Step 305, terminal device is attempted to carry out random access by NUL carrier wave, after the step 305, executes step 310。
Step 306, terminal device carries out random access by SUL carrier wave, and process terminates.
Step 307, terminal device determines the descending slope of DL-RSRP and the relationship of first slope threshold value.If it is determined that DL- The descending slope of RSRP is greater than first slope threshold value, thens follow the steps 308；If it is determined that the descending slope of DL-RSRP is no more than the One slope threshold value, thens follow the steps 309.
Step 308, terminal device carries out random access by SUL carrier wave, and process terminates.
Step 309, terminal device is attempted to carry out random access by NUL carrier wave, after the step 309, executes step 310。
Step 310, terminal device, which is determined, carries out whether random access succeeds by NUL carrier wave.If success, returns again Execute step 303；If failure terminates.
From above-mentioned steps 301 to step 310 as can be seen that terminal device, which passes through, determines that DL-RSRP and first carrier are selected The relationship of the descending slope and first slope threshold value of thresholding and the second carrier wave selection thresholding and DL-RSRP, to determine that terminal is set The standby position in cell downlink covering and the rate mobile to cell boarder, so as to be covered according to terminal device in cell downlink Position and the mobile rate of cell boarder, to determine that selection NUL carrier wave still selects SUL carrier wave to carry out random access, from And promote the success rate that terminal device carries out random access.
As shown in figure 4, for another communication means flow diagram provided by the present application.Terminal device can be in the example It is the terminal device 102 in above-mentioned Fig. 1, the terminal device being also possible in above-mentioned Fig. 2, the terminal being also possible in above-mentioned Fig. 3 Equipment.Following methods process can also be executed by the processing chip in terminal device 102.Method includes the following steps:
Step 401, terminal device determines DL-RSRP and third carrier wave selection thresholding.
Wherein, terminal device can determine downlink-according to the downlink-reference signal intensity received from the network equipment Reference Signal Received Power DL-RSRP.
In one possible implementation, third carrier wave selection thresholding can be the determination of terminal device.For example, terminal Equipment can determine that third carrier wave selects thresholding according to historical information, the following is three kinds of possible implementations provided by the present application.
Implementation A
When terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of n times is determined as third carrier wave selection thresholding, N is positive integer.
It is also understood that when terminal device carries out random access by NUL carrier wave, when recording progress random access every time Corresponding DL-RSRP determines the statistical result of the corresponding DL-RSRP of n times when frequency of failure N is more than frequency threshold value.Than Such as, when terminal device carries out random access by NUL carrier wave, record corresponds to DL-RSRP_A1 when failing for the first time, and third time is lost Correspond to DL-RSRP_A2 when losing, when third time failure corresponds to DL-RSRP_A3, and when the 4th failure corresponds to DL-RSRP_A4, n times The statistical result of corresponding DL-RSRP=(DL-RSRP_A1+DL-RSRP_A2+DL-RSRP_A3+DL-RSRP_A4)/4, I.e. third carrier wave selects thresholding for (DL-RSRP_A1+DL-RSRP_A1+DL-RSRP_A3+DL-RSRP_A4)/4.For another example, Three carrier waves selection thresholding is also possible to the median of DL-RSRP_A1, DL-RSRP_A2, DL-RSRP_A3 and DL-RSRP_A4.
Implementation B
When terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of M corresponding DL-RSRP is determined as third carrier wave selection thresholding, M is positive integer.Optionally, M and N Can be identical, it can not also be identical.
It is also understood that when terminal device carries out random access by NUL carrier wave, it is possible that the case where retrying, It is corresponding DL-RSRP that record retries every time, when frequency of failure M is more than frequency threshold value, determines M corresponding DL- The statistical result of RSRP.For example, record corresponds to DL- when retrying for the first time when terminal device carries out random access by NUL carrier wave RSRP_B1 corresponds to DL-RSRP_B2 when retrying for the third time, correspond to DL-RSRP_B3 when retrying for the third time, when retrying for the 4th time pair Answer DL-RSRP_B4, statistical result=(DL-RSRP_B1+DL-RSRP_B2+DL-RSRP_ of the corresponding DL-RSRP of n times B3+DL-RSRP_B4)/4, i.e. third carrier wave selects thresholding for (DL-RSRP_B1+DL-RSRP_B2+DL-RSRP_B3+DL- RSRP_B4)/4.For another example, third carrier wave selection thresholding be also possible to DL-RSRP_B1, DL-RSRP_B2, DL-RSRP_B3 and The median of DL-RSRP_B4.
Implementation C
In preset duration, terminal device passes through Q times in historical information the transmission power of NUL carrier processing uplink service The statistical result for reaching corresponding DL-RSRP when maximum value is determined as third carrier wave selection thresholding, and Q is positive integer.It is optional Ground, Q and M can be identical, can not also be identical.Q and N can be identical, can not also be identical.
It is also understood that record transmission power reaches maximum value when terminal device passes through NUL carrier processing uplink service When corresponding DL-RSRP, in preset duration content, terminal device reaches transmitting by NUL carrier processing uplink service for the first time Corresponded to when power maximum value DL-RSRP_C1, the corresponding DL-RSRP_C2 of third time, the corresponding DL-RSRP_C3 of third time, the 4th time it is right DL-RSRP_C4 is answered, then third carrier wave selects thresholding for (DL-RSRP_C1+DL-RSRP_C2+DL-RSRP_C3+DL-RSRP_ C4)/4.For another example, third carrier wave selection thresholding is also possible to DL-RSRP_C1+DL-RSRP_C2+DL-RSRP_C3+DL- The median of RSRP_C4.
In one possible implementation, third carrier wave selection thresholding can select thresholding identical with the second carrier wave, Can not be identical, the application does not limit this.
Step 402, if terminal device determines that timer has not timed out and DL-RSRP is less than third carrier wave and selects thresholding, really Determine the descending slope of DL-RSRP.
Wherein, limitation passes through NUL carrier wave progress random access in the timing length of timer.It is also understood that timing Device has not timed out, and illustrates that NUL uplink is of poor quality, if at this time directly by NUL carrier wave carry out random access failure rate it is higher, can again into One step will carry out random access by 403 determination of following step by NUL carrier wave, or carry out random access by SUL carrier wave.
In one possible implementation, terminal device starts timer (NUL_ when meeting following either condition BAR_T1)。
Condition 1:
Terminal device carries out random access failure by NUL carrier wave.Under the condition 1, illustrate that terminal device is not covered in NUL In range, terminal device cannot carry out random access by NUL carrier wave in certain duration.It is also understood that certain In duration, terminal device, which carries out random access by NUL carrier wave, be will fail.
Condition 2: NUL uplink quality is judged by the power that NUL carrier wave is attempted when connecing at random based on terminal device.
Terminal device carries out random access success by NUL carrier wave and access reaches maximum transmission power.Under the condition 2, Although illustrating that terminal device carries out random access success by NUL carrier wave, need to reach maximum transmission power, i.e. terminal is set It is standby to be located at the relatively not good enough of NUL covering, it is higher that random access failure rate is carried out by NUL carrier wave.
Condition 3: power when doing uplink service by NUL carrier wave based on terminal device judges NUL uplink quality.
Terminal device carries out random access success by NUL carrier wave and processing uplink service reaches maximum transmission power.It should Under condition 3, although illustrating that terminal device carries out random access success by NUL carrier wave, processing uplink service needs reach most Big transmission power, i.e. terminal device also are located at the not good enough of NUL covering, and it is higher to carry out random access failure rate by NUL carrier wave.
Step 403, if terminal device determines that the descending slope of DL-RSRP is greater than the second slope threshold value, pass through SUL carrier wave Carry out random access.
In the step 403, it can determine that terminal device is moved to MPS process boundary by the descending slope of DL-RSRP Dynamic rate illustrates terminal device quickly to MPS process when the descending slope of DL-RSRP is greater than the second slope threshold value Boundary Moving, i.e. terminal device are in the region of MPS process dtr signal, and fast move to the worse region of signal, SUL The affiliated frequency point of carrier wave is low, and coverage area is big, i.e., carries out random access by SUL carrier wave, success rate can be higher.
From above-mentioned steps 401 to step 403 as can be seen that terminal device can be by the timer of setting, terminal device small The direction of position, movement in area's coverage area and rate combine, and it is random that branch scape selects NUL carrier wave or SUL carrier wave to initiate Access.It is had not timed out when terminal device determines timer, DL-RSRP is less than third carrier wave selection thresholding and determines under DL-RSRP Drop angle rate is greater than the second slope threshold value, illustrates that NUL uplink is second-rate, and terminal is initiated to select SUL carrier wave when random access, such as This, can be improved the success rate of terminal device random access.
As shown in figure 5, for another communication means flow diagram provided by the present application.Terminal device can be in the example It is the terminal device 102 in above-mentioned Fig. 1, is also possible to terminal device of the above-mentioned Fig. 2 into Fig. 4 any embodiment.This method packet Include following steps:
Step 501, terminal device determines DL-RSRP and third carrier wave selection thresholding.
The step 501 can be found in the introduction of above-mentioned steps 401, and details are not described herein again.
Step 502, terminal device receives the first carrier from the network equipment and selects thresholding, and first carrier selects thresholding small Thresholding is selected in third carrier wave.
Can be found in above-mentioned steps 201 for first carrier selection thresholding in the step 502 selects door about first carrier The introduction of limit, details are not described herein again.
There is no sequencing between above-mentioned steps 501 and step 502, executes step 502 after step 501 can be first carried out； Step 501 or step 501 are executed after step 502 can also be first carried out and step 502 executes together, and the application does not do this It limits.
Step 503, whether overtime terminal device determines timer, if having not timed out, thens follow the steps 504；If overtime, hold Row step 508.
In the step 503, if timer has not timed out, illustrate that NUL uplink quality is still poor.
Step 504, terminal device determines whether DL-RSRP is less than third carrier wave selection thresholding.If being less than, then follow the steps 505；If being not less than, 509 are thened follow the steps.
Step 505, terminal device determines the descending slope of DL-RSRP, executes step 506 later.
Step 506, terminal device determines whether the descending slope of DL-RSRP is greater than the second slope threshold value.If more than then holding Row step 507；If being not more than, 508 are thened follow the steps.
The step 506 can be found in the introduction of above-mentioned steps 402, and details are not described herein again.
Step 507, random access is carried out by SUL carrier wave.
Step 508, terminal device determines whether DL-RSRP is less than first carrier selection thresholding.If being not less than, step is executed Rapid 509；If being less than, step 507 is executed.
It is also understood that terminal device determines that DL-RSRP is selected not less than first carrier selection thresholding, less than third carrier wave The descending slope for selecting thresholding and DL-RSRP is not more than the second slope threshold value, and it is preferable to illustrate that terminal device is in MPS process signal Region, and it is quickly not mobile to cell boarder, therefore, can attempt to carry out random access by NUL carrier wave.Work as terminal device Determine DL-RSRP no more than the descending slope of first carrier selection thresholding and DL-RSRP no more than the second slope threshold value, explanation Terminal device is in the region of MPS process dtr signal, and quickly to cell boarder movement, therefore, can pass through SUL carrier wave Random access is carried out, the success rate of terminal device random access is helped to improve.When terminal device determine timer expiry and DL-RSRP is less than first carrier and selects thresholding, then carries out random access by SUL carrier wave.When terminal device determines that timer is super When and DL-RSRP not less than first carrier select thresholding, it tries pass through NUL carrier wave carry out random access.
Step 509, terminal device is attempted to carry out random access by NUL carrier wave.After the step 509, step is executed 510。
Step 510, terminal device, which is determined, carries out whether random access succeeds by NUL carrier wave.If failure executes step 511；If success, thens follow the steps 512.
In the step 510, when terminal device carries out random access failure by NUL carrier wave, illustrate NUL uplink quality Difference.
Step 511, start timer.
Step 512, terminal device determines whether random access or processing uplink service reach maximum transmission power.If so, Execute step 511；If it is not, executing step 513.
Step 513, timer stops timing, terminates.
Terminal device be can be seen that from above-mentioned steps 501 to step 513 by the timer of setting, terminal device in cell The direction of position, movement in coverage area and rate combine, and branch scape selection NUL carrier wave or the initiation of SUL carrier wave connect at random Enter.In this way, the success rate of terminal device random access can be improved.
Based on above content and same idea, the embodiment of the present application provides a kind of communication device, for executing the above method In terminal device any one scheme.Fig. 6 illustrates a kind of structure of communication device provided by the embodiments of the present application Schematic diagram, as shown in fig. 6, the communication device includes processor 601, transceiver 602 and bus 604.The communication device can also be with Terminal in above-mentioned Fig. 1 is started to write, and terminal device of the Fig. 2 to Fig. 5 in any one is also possible to.
Processor 601 can be central processing unit (central processing unit, CPU), network processing unit The combination of (network processor, NP) or CPU and NP.Processor 601 can further include hardware chip.On Stating hardware chip can be specific integrated circuit (application-specific integrated circuit, ASIC), can Programmed logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can be complex programmable and patrol It collects device (comple programmable logic device, CPLD), field programmable gate array (field- Programmable gate array, FPGA), Universal Array Logic (generic array logic, GAL) or its any group It closes.
For one kind optionally in embodiment, communication device can also include memory 603 (being not shown in Fig. 6).Memory 603 may include volatile memory (volatile memory), such as random access memory (random-access Memory, RAM)；Memory also may include nonvolatile memory (non-volatile memory), such as flash Device (flashmemory), hard disk (hard disk drive, HDD) or solid state hard disk (solid-state drive, SSD)；It deposits Reservoir can also include the combination of the memory of mentioned kind.Program instruction can be stored in memory, can also handled It is stored in device program instruction when NP (such as processor be), processor 601 calls stored program instruction, can execute above-mentioned One or more steps or in which optional embodiment in embodiment shown in scheme.
Bus 604 can be Peripheral Component Interconnect standard (peripheral component interconnect, abbreviation PCI) bus or expanding the industrial standard structure (extended industry standard architecture, abbreviation EISA) Bus etc..Bus can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, only with a thick line in Fig. 6 It indicates, it is not intended that an only bus or a type of bus.
In one possible implementation, processor 601 and memory 603 can integrate, alternatively, processor 601 and memory 603 can also be coupled by interface；Alternatively, processor 601 be hardware chip, memory 603 except chip, The application does not limit this.
It is designed it should be noted that Fig. 6 illustrate only simplifying for communication device.In practical applications, communication device can With comprising any number of processor, memory, transceiver etc., and all communication devices that the application may be implemented are all in this Shen Within protection scope please.
Communication device in this example is in a kind of situation of above-mentioned terminal device:
Transceiver 602, for receiving downlink-reference signal；Processor 601 is used for: determine first carrier selection thresholding and Second carrier wave selects thresholding, and first carrier selects thresholding to select thresholding less than the second carrier wave；Determine that downlink-reference signal receives function Rate DL-RSRP；Determine that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, it is determined that DL-RSRP Descending slope；If it is determined that the descending slope of DL-RSRP is greater than first slope threshold value, then pass through supplement uplink SUL carrier wave Carry out random access.
Processor 601 can also be when the descending slope for determining DL-RSRP be not more than first slope threshold value, it tries passes through Normal uplink NUL carrier wave carries out random access.Or when determining DL-RSRP not less than the second carrier wave selection thresholding, then It attempts to carry out random access by NUL carrier wave.Or when determining DL-RSRP no more than first carrier selection thresholding, then pass through SUL carrier wave carries out random access.
Illustratively, processor 601 can directly select the received first carrier from the network equipment of transceiver 602 Thresholding selects thresholding as the first carrier itself determined.And processor 601 can determine the second carrier wave in conjunction with historical data When selecting thresholding, for example determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, by N The statistical result of secondary corresponding DL-RSRP is determined as the second carrier wave selection thresholding, and N is positive integer；Alternatively, determining history letter When carrying out random access number of retries M more than frequency threshold value by NUL carrier wave in breath, by the system of M corresponding DL-RSRP Meter result is determined as the second carrier wave selection thresholding, and M is positive integer；Alternatively, Q times in historical information is passed through in preset duration The transmission power of NUL carrier processing uplink service reaches the statistical result of corresponding DL-RSRP when maximum value, is determined as Nd carrier selects thresholding, and Q is positive integer.
Communication device in this example be above-mentioned terminal device in another case:
Transceiver 602, for receiving downlink-reference signal；Processor 601 is used for: determining that downlink-reference signal receives function Rate DL-RSRP and third carrier wave select thresholding；If it is determined that timer has not timed out and DL-RSRP is less than third carrier wave and selects thresholding, The descending slope of DL-RSRP is then determined if it is determined that the descending slope of DL-RSRP is greater than the second slope threshold value, then by supplementing uplink Link SUL carrier wave carries out random access, and limitation is carried out random by normal uplink NUL carrier wave in the timing length of timer Access.
Transceiver 602 can also be used to receive the selection thresholding of the first carrier from the network equipment, and first carrier selects thresholding Thresholding is selected less than third carrier wave.
Processor 601 can also be used in: if it is determined that the descending slope of DL-RSRP is not more than the second slope threshold value and DL-RSRP Thresholding is selected not less than from the received first carrier of the network equipment, attempts to carry out random access by NUL carrier wave.Or if it is determined that The descending slope of DL-RSRP is no more than the second slope threshold value and DL-RSRP is no more than first carrier selection thresholding, then passes through SUL Carrier wave carries out random access.Or if it is determined that timer expiry and DL-RSRP, which are less than first carrier, selects thresholding, then pass through SUL Carrier wave carries out random access.Or if it is determined that timer expiry and DL-RSRP select thresholding not less than first carrier, then pass through NUL carrier wave carries out random access.To improve the efficiency of random access.
Processor 601 is also used to: being carried out random access failure by NUL carrier wave, or is being carried out at random by NUL carrier wave It is successfully accessed and accesses and reach maximum transmission power, or random access success and processing uplink service are carried out by NUL carrier wave When reaching maximum transmission power, start timer.
Processor 601 can be used for: determine that the third carrier wave selects thresholding by following three kinds of modes.
Mode one, when determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of n times is determined as third carrier wave selection thresholding, N is positive integer.
Mode two, when determining that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of M corresponding DL-RSRP is determined as third carrier wave selection thresholding, M is positive integer.
Mode three passes through Q times in historical information the transmission power of NUL carrier processing uplink service in preset duration The statistical result for reaching corresponding DL-RSRP when maximum value is determined as third carrier wave selection thresholding, and Q is positive integer.
The related content of above-mentioned optional embodiment may refer to above-described embodiment in the embodiment of the present application, herein no longer It repeats.
Based on above content and same idea, the application provides a kind of communication device, for executing in above method process Any one scheme of terminal device.Fig. 7 illustrates a kind of structural schematic diagram of communication device provided by the present application.Such as figure Shown in 7, which includes processing unit 701 and Transmit-Receive Unit 702.Communication device 700 in the example can execute The corresponding scheme executed of above-mentioned Fig. 2 terminal device into Fig. 5, which can also be with the middle terminal device in above-mentioned Fig. 1 102。
Communication device in this example is in a kind of situation of above-mentioned terminal device:
Transmit-Receive Unit 702, for receiving downlink-reference signal；Processing unit 701 is used for: determining that first carrier selects door Limit and the second carrier wave select thresholding, and first carrier selects thresholding to select thresholding less than the second carrier wave；Determine that downlink-reference signal connects Receive power DL-RSRP；Determine that DL-RSRP is greater than first carrier selection thresholding and selects thresholding less than the second carrier wave, it is determined that DL- The descending slope of RSRP；If it is determined that the descending slope of DL-RSRP is greater than first slope threshold value, then pass through supplement uplink SUL Carrier wave carries out random access.
Processing unit 701 can be also used for: if it is determined that the descending slope of DL-RSRP is not more than first slope threshold value, then taste It pinged normal uplink NUL carrier wave and carries out random access.Or if it is determined that DL-RSRP selects door not less than the second carrier wave Limit, it tries random access is carried out by NUL carrier wave.Or if it is determined that DL-RSRP then leads to no more than first carrier selection thresholding It crosses SUL carrier wave and carries out random access.
Transmit-Receive Unit 702 can also be used in: receiving the first carrier from the network equipment and selects thresholding.
In a kind of optional embodiment, processing unit 701 is specifically used for determining the third by following three kinds of modes Carrier wave selects thresholding.
Mode one, when determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of n times is determined as the second carrier wave selection thresholding, N is positive integer.
Mode two, when determining that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of M corresponding DL-RSRP is determined as the second carrier wave selection thresholding, M is positive integer.
Mode three passes through Q times in historical information the transmission power of NUL carrier processing uplink service in preset duration The statistical result for reaching corresponding DL-RSRP when maximum value is determined as the second carrier wave selection thresholding, and Q is positive integer.
Communication device in this example be above-mentioned terminal device in another case:
Transmit-Receive Unit 702, for receiving downlink-reference signal；Processing unit 701 is used for: determining that downlink-reference signal connects It receives power DL-RSRP and third carrier wave selects thresholding；If it is determined that timer has not timed out and DL-RSRP is selected less than third carrier wave Thresholding, it is determined that the descending slope of DL-RSRP, in the timing length of timer limitation by normal uplink NUL carrier wave into Row random access；If it is determined that the descending slope of DL-RSRP is greater than the second slope threshold value, then pass through supplement uplink SUL carrier wave Carry out random access.
Transmit-Receive Unit 702 can also be used in: receiving the first carrier from the network equipment and selects thresholding, first carrier selects door Limit is less than third carrier wave and selects thresholding.
Processing unit 701 can also be used in: if it is determined that the descending slope of DL-RSRP is not more than the second slope threshold value and DL- RSRP selects thresholding not less than first carrier, it tries carries out random access by NUL carrier wave.Or if it is determined that DL-RSRP Descending slope is no more than the second slope threshold value and DL-RSRP is no more than first carrier selection thresholding, then is carried out by SUL carrier wave Random access.Or if it is determined that timer expiry and DL-RSRP, which are less than first carrier, selects thresholding, then carried out by SUL carrier wave Random access.Or if it is determined that timer expiry and DL-RSRP select thresholding not less than first carrier, then by NUL carrier wave into Row random access.
Processing unit 701 can also be used in: carrying out random access failure by NUL carrier wave, or is being carried out by NUL carrier wave Random access success and access reach maximum transmission power, or carry out random access success and processing uplink by NUL carrier wave When business reaches maximum transmission power, start timer.
Processing unit 701, which is particularly used in, determines that the third carrier wave selects thresholding by following three kinds of modes.
Mode one, when determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of n times is determined as third carrier wave selection thresholding, N is positive integer.
Mode two, when determining that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of M corresponding DL-RSRP is determined as third carrier wave selection thresholding, M is positive integer.
Mode three passes through Q times in historical information the transmission power of NUL carrier processing uplink service in preset duration The statistical result for reaching corresponding DL-RSRP when maximum value is determined as third carrier wave selection thresholding, and Q is positive integer.
The related content of above-mentioned optional embodiment may refer to above-described embodiment in the embodiment of the present application, herein no longer It repeats.
It should be understood that the division of the unit of above each communication device is only a kind of division of logic function, in actual implementation It can completely or partially be integrated on a physical entity, it can also be physically separate.In the application, processing unit 701 can be with It is realized by the processor 601 of above-mentioned Fig. 6, Transmit-Receive Unit 702 can be realized by the transceiver 602 of above-mentioned Fig. 6.That is, this Transmit-Receive Unit 702 can execute scheme performed by the transceiver 602 of above-mentioned Fig. 6 in application, and processing unit 701 can in the application To execute scheme performed by the processor 601 of above-mentioned Fig. 6, remaining content may refer to above content, and details are not described herein.Such as Shown in above-mentioned Fig. 6, it can be used for storing the processor that the communication device 600 includes in the memory 603 that communication device 600 includes 601 code when carrying into execution a plan, program/code which pre-installs when can dispatch from the factory for communication device 700.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real Now, it when being realized using software program, can entirely or partly realize in the form of a computer program product.Computer program Product includes one or more instructions.When loading on computers and executing computer program instructions, entirely or partly generate According to the process or function of the embodiment of the present application.Computer can be general purpose computer, special purpose computer, computer network or Other programmable devices of person.Instruction can store in computer storage medium, or from a computer storage medium to another One computer storage medium transmission, for example, instruction can be logical from a web-site, computer, server or data center Wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode are crossed to another One web-site, computer, server or data center are transmitted.Computer storage medium can be computer and can deposit Any usable medium taken either includes that the data storages such as one or more usable mediums integrated server, data center are set It is standby.Usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape, magneto-optic disk (MO) etc.), optical medium (for example, CD, DVD, BD, HVD etc.) or semiconductor medium (such as ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), Solid state hard disk (Solid State Disk, SSD)) etc..
It should be understood by those skilled in the art that, the embodiment of the present application can provide as the production of method, system or computer program Product.Therefore, in terms of the embodiment of the present application can be used complete hardware embodiment, complete software embodiment or combine software and hardware Embodiment form.Moreover, it wherein includes computer available programs generation that the embodiment of the present application, which can be used in one or more, The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code The form of calculation machine program product.
The embodiment of the present application is referring to the method, equipment (system) and computer program product according to the embodiment of the present application Flowchart and/or the block diagram describe.It should be understood that can be by each process in instruction implementation flow chart and/or block diagram And/or the combination of the process and/or box in box and flowchart and/or the block diagram.These instructions be can provide to general meter Calculation machine, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate a machine, make It obtains and is generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing in flow chart one The device for the function of being specified in a process or multiple processes and/or one or more blocks of the block diagram.
These instructions, which may also be stored in, is able to guide computer or other programmable data processing devices work in a specific way Computer-readable memory in so that it is stored in the computer readable memory instruction generate include command device system Product are made, which realizes in one or more flows of the flowchart and/or one or more blocks of the block diagram Specified function.
These instructions also can be loaded onto a computer or other programmable data processing device so that computer or other Series of operation steps are executed on programmable device to generate computer implemented processing, thus in computer or other are programmable The instruction that executes in equipment is provided for realizing in one box of one or more flows of the flowchart and/or block diagram or more The step of function of being specified in a box.
Obviously, those skilled in the art can carry out various modification and variations without departing from this Shen to the embodiment of the present application Spirit and scope please.In this way, if these modifications and variations of the embodiment of the present application belong to the claim of this application and its wait Within the scope of technology, then the application is also intended to include these modifications and variations.

Claims (27)

1. a kind of communication means characterized by comprising
Terminal device determines that first carrier selection thresholding and the second carrier wave selection thresholding, the first carrier selection thresholding are less than institute State the second carrier wave selection thresholding；
The terminal device determines downlink-Reference Signal Received Power DL-RSRP；
If the terminal device determines that the DL-RSRP is greater than first carrier selection thresholding and is less than second carrier wave and selects Select thresholding, it is determined that the descending slope of the DL-RSRP；
If the terminal device determines that the descending slope of the DL-RSRP is greater than first slope threshold value, pass through supplement uplink Road SUL carrier wave carries out random access.
2. the method as described in claim 1, which is characterized in that the method also includes:
If the terminal device determines the descending slope of the DL-RSRP no more than the first slope threshold value, it tries pass through Normal uplink NUL carrier wave carries out random access.
3. the method as described in claim 1, which is characterized in that the method also includes:
If the terminal device determines that the DL-RSRP selects thresholding not less than second carrier wave, it tries pass through the NUL Carrier wave carries out random access.
4. the method as described in claim 1, which is characterized in that the method also includes:
If the terminal device determines that the DL-RSRP selects thresholding no more than the first carrier, pass through the SUL carrier wave Carry out random access.
5. such as the described in any item methods of Claims 1-4, which is characterized in that the terminal device determines that first carrier selects Thresholding, comprising:
The terminal device receives the first carrier from the network equipment and selects thresholding.
6. such as the described in any item methods of Claims 1-4, which is characterized in that the terminal device determines that the second carrier wave selects Thresholding, comprising:
When the terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of the n times is determined as the second carrier wave selection thresholding, N is positive integer；Or Person,
When the terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of described M times corresponding DL-RSRP is determined as the second carrier wave selection thresholding, M is positive integer；Or Person,
In preset duration, the terminal device passes through Q times in historical information the transmission power of NUL carrier processing uplink service The statistical result for reaching corresponding DL-RSRP when maximum value is determined as the second carrier wave selection thresholding, and Q is positive integer.
7. a kind of communication means characterized by comprising
The terminal device determines downlink-Reference Signal Received Power DL-RSRP and third carrier wave selection thresholding；
If the terminal device determines that timer has not timed out and the DL-RSRP is less than the third carrier wave and selects thresholding, really The descending slope of the fixed DL-RSRP, the interior limitation of the timing length of the timer are carried out by normal uplink NUL carrier wave Random access；
If the terminal device determines that the descending slope of the DL-RSRP is greater than the second slope threshold value, pass through supplement uplink Road SUL carrier wave carries out random access.
8. the method for claim 7, which is characterized in that the method also includes:
The terminal device receives the first carrier from the network equipment and selects thresholding, and the first carrier selection thresholding is less than institute State third carrier wave selection thresholding；
The terminal device determines after the descending slope of the DL-RSRP, further includes:
If the terminal device determines the descending slope of the DL-RSRP no more than second slope threshold value and the DL- RSRP selects thresholding not less than the first carrier, it tries carries out random access by the NUL carrier wave.
9. the method for claim 7, which is characterized in that the method also includes:
The terminal device receives the first carrier from the network equipment and selects thresholding, and the first carrier selection thresholding is less than institute State third carrier wave selection thresholding；
The terminal device determines after the descending slope of the DL-RSRP, further includes:
If the terminal device determines the descending slope of the DL-RSRP no more than second slope threshold value and the DL- RSRP selects thresholding no more than the first carrier, then carries out random access by the SUL carrier wave.
10. the method for claim 7, which is characterized in that the method also includes:
The terminal device receives the first carrier from the network equipment and selects thresholding, and the first carrier selection thresholding is less than institute State third carrier wave selection thresholding；
If the terminal device determines the timer expiry and the DL-RSRP is less than the first carrier and selects thresholding, Random access is carried out by the SUL carrier wave.
11. the method for claim 7, which is characterized in that the method also includes:
The terminal device receives the first carrier from the network equipment and selects thresholding, and the first carrier selection thresholding is less than institute State third carrier wave selection thresholding；
If the terminal device determines the timer expiry and the DL-RSRP is not less than the first carrier and selects thresholding, It then attempts to carry out random access by NUL carrier wave.
12. such as the described in any item methods of claim 7 to 11, which is characterized in that the terminal device is any below meeting When condition, start the timer:
The terminal device carries out random access failure by the NUL carrier wave；
The terminal device carries out random access success by the NUL carrier wave and access reaches maximum transmission power；
The terminal device carries out random access success by the NUL carrier wave and processing uplink service reaches emission maximum function Rate.
13. such as the described in any item methods of claim 7 to 9, which is characterized in that the terminal device determines that third carrier wave selects Thresholding, comprising:
When the terminal device determines that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of the corresponding DL-RSRP of the n times is determined as the third carrier wave selection thresholding, N is positive integer；Or Person,
When the terminal device determines that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, The statistical result of described M times corresponding DL-RSRP is determined as the third carrier wave selection thresholding, M is positive integer；Or Person,
In preset duration, the terminal device passes through Q times in historical information the transmission power of NUL carrier processing uplink service The statistical result for reaching corresponding DL-RSRP when maximum value is determined as the third carrier wave selection thresholding, and Q is positive integer.
14. a kind of communication device characterized by comprising
Transceiver, for receiving downlink-reference signal；
Processor, for determining that first carrier selection thresholding and the second carrier wave selection thresholding, the first carrier selection thresholding are small Thresholding is selected in second carrier wave；Determine downlink-Reference Signal Received Power DL-RSRP；Determine that the DL-RSRP is greater than institute It states first carrier selection thresholding and is less than second carrier wave and select thresholding, it is determined that the descending slope of the DL-RSRP；If really The descending slope of the fixed DL-RSRP is greater than first slope threshold value, then is connect at random by supplementing uplink SUL carrier wave Enter.
15. communication device as claimed in claim 14, which is characterized in that the processor is also used to:
If it is determined that the descending slope of the DL-RSRP is not more than the first slope threshold value, it tries pass through normal uplink NUL carrier wave carries out random access.
16. communication device as claimed in claim 14, which is characterized in that the processor is also used to:
If it is determined that the DL-RSRP selects thresholding not less than second carrier wave, it tries carried out by the NUL carrier wave random Access.
17. communication device as claimed in claim 14, which is characterized in that the processor is also used to:
If it is determined that the DL-RSRP selects thresholding no more than the first carrier, then connect at random by the SUL carrier wave Enter.
18. such as the described in any item communication devices of claim 14 to 17, which is characterized in that the processor, being specifically used for will The first carrier selection thresholding from the network equipment that the transceiver receives is determined as the first carrier selection door Limit and the second carrier wave select thresholding.
19. such as the described in any item communication devices of claim 14 to 17, which is characterized in that the processor is in the following way Determine the second carrier wave selection thresholding:
When determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, by the n times point The statistical result of not corresponding DL-RSRP is determined as the second carrier wave selection thresholding, and N is positive integer；Alternatively,
When determining that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, by described M times point The statistical result of not corresponding DL-RSRP is determined as the second carrier wave selection thresholding, and M is positive integer；Alternatively,
In preset duration, when Q times in the historical information transmission power by NUL carrier processing uplink service is reached maximum value The statistical result of corresponding DL-RSRP is determined as the second carrier wave selection thresholding, and Q is positive integer.
20. a kind of communication device characterized by comprising
Transceiver, for receiving downlink reference signal；
Processor, for determining downlink-Reference Signal Received Power DL-RSRP and third carrier wave selection thresholding；If it is determined that timing Device has not timed out and the DL-RSRP is less than the third carrier wave and selects thresholding, it is determined that the descending slope of the DL-RSRP, institute It states limitation in the timing length of timer and passes through normal uplink NUL carrier wave progress random access；If it is determined that the DL-RSRP Descending slope be greater than the second slope threshold value, then by supplement uplink SUL carrier wave carry out random access.
21. communication device as claimed in claim 20, which is characterized in that the transceiver is also used to:
It receives the first carrier from the network equipment and selects thresholding, the first carrier selection thresholding is selected less than the third carrier wave Select thresholding；
The processor, is also used to:
If it is determined that the descending slope of the DL-RSRP is no more than second slope threshold value and the DL-RSRP is not less than described First carrier selects thresholding, it tries carries out random access by the NUL carrier wave.
22. communication device as claimed in claim 20, which is characterized in that the transceiver is also used to:
It receives the first carrier from the network equipment and selects thresholding, the first carrier selection thresholding is selected less than the third carrier wave Select thresholding；
The processor, is also used to:
If it is determined that the descending slope of the DL-RSRP is no more than second slope threshold value and the DL-RSRP is no more than described First carrier selects thresholding, then carries out random access by the SUL carrier wave.
23. communication device as claimed in claim 20, which is characterized in that the transceiver is also used to:
It receives the first carrier from the network equipment and selects thresholding, the first carrier selection thresholding is selected less than the third carrier wave Select thresholding；
The processor, is also used to:
If it is determined that the timer expiry and the DL-RSRP, which are less than the first carrier, selects thresholding, then pass through the SUL Carrier wave carries out random access.
24. communication device as claimed in claim 20, which is characterized in that the transceiver is also used to:
It receives the first carrier from the network equipment and selects thresholding, the first carrier selection thresholding is selected less than the third carrier wave Select thresholding；
The processor, is also used to:
If it is determined that the timer expiry and the DL-RSRP select thresholding not less than the first carrier, it tries pass through NUL carrier wave carries out random access.
25. such as the described in any item communication devices of claim 20 to 24, which is characterized in that the processor is also used to:
When meeting following either condition, start the timer:
Random access failure is carried out by the NUL carrier wave；
Random access success is carried out by the NUL carrier wave and access reaches maximum transmission power；
Random access success is carried out by the NUL carrier wave and processing uplink service reaches maximum transmission power.
26. such as the described in any item communication devices of claim 20 to 22, which is characterized in that the processor passes through following manner Determine that third carrier wave selects thresholding:
When determining that carrying out random access failure times N by NUL carrier wave in historical information is more than frequency threshold value, by the n times point The statistical result of not corresponding DL-RSRP is determined as the third carrier wave selection thresholding, and N is positive integer；Alternatively,
When determining that carrying out random access number of retries M by NUL carrier wave in historical information is more than frequency threshold value, by described M times point The statistical result of not corresponding DL-RSRP is determined as the third carrier wave selection thresholding, and M is positive integer；Alternatively,
In preset duration, when Q times in the historical information transmission power by NUL carrier processing uplink service is reached maximum value The statistical result of corresponding DL-RSRP is determined as the third carrier wave selection thresholding, and Q is positive integer.
27. a kind of computer storage medium, which is characterized in that the computer storage medium is stored with the executable finger of computer It enables, the computer executable instructions execute the computer such as any institute of claim 1 to 13 when being called by computer The method stated.
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