CN107333336A - A kind of method, base station and terminal for sending targeting sequencing on a random access channel - Google Patents
A kind of method, base station and terminal for sending targeting sequencing on a random access channel Download PDFInfo
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- CN107333336A CN107333336A CN201710464145.0A CN201710464145A CN107333336A CN 107333336 A CN107333336 A CN 107333336A CN 201710464145 A CN201710464145 A CN 201710464145A CN 107333336 A CN107333336 A CN 107333336A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000012163 sequencing technique Methods 0.000 title claims abstract description 59
- 230000008685 targeting Effects 0.000 title claims abstract description 59
- 238000012546 transfer Methods 0.000 claims description 105
- 230000005540 biological transmission Effects 0.000 claims description 53
- 238000005259 measurement Methods 0.000 claims description 31
- 238000004891 communication Methods 0.000 claims description 19
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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Abstract
This application discloses a kind of method for sending targeting sequencing on a random access channel, including：Base station obtains leading initial receiving power and the first up-downgoing path loss difference, and the first leading receiving power is determined according to leading initial receiving power and the first up-downgoing path loss difference, and being sent to terminal includes the message of the first leading receiving power.The application also provides a kind of base station that can realize the above method and terminal.The application can shorten Stochastic accessing time delay, accelerate Stochastic accessing speed.
Description
Technical field
The application is related to wireless communication field, more particularly to a kind of side for sending targeting sequencing on a random access channel
Method, base station and terminal.
Background technology
Stochastic accessing is the network equipment and terminal sets up Radio Link must be through process.Only it is completed in Stochastic accessing
Afterwards, the network equipment can just carry out data transmission with terminal.In the random access procedure, terminal needs configuring preamble transmit power,
Reuse leading transmit power and send targeting sequencing to base station.
The method of existing configuring preamble transmit power approximately as：Base station will carry disappearing for leading initial reception target power
Breath is sent to terminal, and terminal is obtained after leading initial reception target power, according to leading initial reception target power and descending
The leading transmit power of path loss calculation, then sends targeting sequencing using leading transmit power to base station.Base station receives terminal
After the targeting sequencing of transmission, accidental access response is sent to terminal, if terminal does not receive accidental access response, then represent
Random access failure is, it is necessary to retransmit targeting sequencing.Terminal increases stepping power on the basis of last time leading transmit power, obtains
Higher leading transmit power, targeting sequencing is retransmitted using the leading transmit power, if it fails, then circulation execution increase is leading
The step of transmit power retransmits targeting sequencing, until being successfully accessed.
But, when terminal switches to Target cell from serving cell, the leading reception mesh that target BS is sent to terminal
The value and not according to channel virtual condition for marking power are determined, but the fixed value determined by historical measurement.Actually should
In, up-downgoing path loss often has differences, and calculates obtained leading transmit power according to existing method and is actually needed
Leading transmit power often there is larger difference, cause terminal needs repeatedly attempt accidental channel access, access procedure need
Spend more time.
The content of the invention
This application provides a kind of method, base station and terminal for sending targeting sequencing on a random access channel, it can contract
Short Stochastic accessing time delay, accelerates Stochastic accessing speed.
First aspect provides a kind of method for sending targeting sequencing on a random access channel, including：Base station obtains leading
Initial receiving power and the first up-downgoing path loss difference, first is determined according to leading initial receiving power and the first up-downgoing path loss difference
Leading receiving power；Base station is sent to terminal includes the message of the first leading receiving power, and terminal uses the first leading reception work(
Rate sends targeting sequencing.Up-downgoing path loss difference refers to up path loss and the difference of downlink path loss.
Implement according to this, base station can be calculated according to leading initial receiving power and current up-downgoing path loss difference and obtain leading
Transmit power, the difference of the up path loss and descending path loss during practical communication is take into account due to result of calculation, with showing
The leading transmit power for having method to calculate is compared, its closer actual desired leading transmit power.When terminal uses the application
Leading transmit power when sending targeting sequencing, it is possible to increase channel access success rate, reduce Stochastic accessing time delay, accelerate random
Access speed.
In a kind of possible implementation, base station obtains the noise of RACH and bottom is made an uproar, according to Stochastic accessing
The noise of channel and bottom are made an uproar determination noise incremental quantity, are increased further according to leading initial receiving power, the first up-downgoing path loss difference and noise
Amount determines the first leading receiving power.So, the first obtained leading receiving power is calculated by increasing noise incremental quantity, it more connects
Nearly actual desired leading receiving power.Channel access success rate can be so improved, reduces Stochastic accessing time delay, accelerates random
Access speed.
Further, after including the message of the first leading receiving power to terminal transmission in base station, when base station is in regulation
In do not receive terminal transmission targeting sequencing when, base station obtain the second up-downgoing path loss difference, according to the first leading reception work(
Rate and the second up-downgoing path loss difference determine the second leading receiving power；Base station is sent to terminal includes the second leading receiving power
Message.So, when terminal is not successfully accessed channel, base station can be on the basis of the preceding leading receiving power once obtained
Increase current up-downgoing path loss difference, obtain new leading receiving power, terminal can use new leading receiving power to attempt again
Secondary access channel.
Second aspect provides a kind of method for sending targeting sequencing on a random access channel, including：Terminal receives base station
The message of transmission, the first leading receiving power that the message is included uses the first leading hair as the first leading transmit power
Power is sent to send targeting sequencing to base station.Due to base station calculate obtained the first leading receiving power closer to it is actual it is desired before
Transmit power is led, when terminal sends targeting sequencing using the first leading receiving power, it is easier to access channel.With prior art
Compare, terminal can save power consumption without calculating leading transmit power according to leading receiving power and descending path loss.
In a kind of possible implementation, after targeting sequencing is sent to base station using the first leading transmit power,
What terminal reception base station was sent includes the message of the second leading receiving power, regard the second leading receiving power as the second leading hair
Power is sent, targeting sequencing is sent to base station using the second leading transmit power.So, it be not successfully accessed the situation of channel
Under, the new leading transmit power that terminal can be sent according to base station is attempted to access channel again.
The third aspect provides a kind of method for setting data transfer configuration information, including：The survey that base station receiving terminal is sent
Amount report, measurement report includes the cell channel parameter of serving cell and the cell channel parameter of Target cell；Base station is according to clothes
The cell channel parameter of business cell determines the data transfer configuration information of serving cell；When terminal switches to Target cell, and mesh
When the cell channel parameter for marking cell is more than the cell channel parameter of serving cell, base station configures the data transfer of serving cell
Information as Target cell data transfer configuration information.So, when terminal switches to Target cell, and the cell of Target cell
When channel parameter is more than the cell channel parameter of serving cell, the message transmission rate in Target cell and the number in serving cell
It is consistent according to transmission rate.Compared with prior art uses minimum message transmission rate, the above method of the application can be improved
Data transmission bauds.
In a kind of possible implementation, cell channel parameter is cell channel quality or Cell level, data transfer
Configuration information includes modulation and at least one in coding strategy MCS, modulation type or data-transmission mode.
The third aspect provides a kind of method for setting data transfer configuration information, and the communication system of this method application includes source
Base station and target BS.This method includes：Target BS receives the handover request that source base station is sent；When handover request meets default
During condition, target BS using the data transfer configuration information of serving cell as Target cell data transfer configuration information.Source
Base station corresponds to serving cell, and target BS corresponds to Target cell.So, when terminal from serving cell switches to Target cell
When, the message transmission rate in Target cell is consistent with the message transmission rate in serving cell.With prior art using minimum
Message transmission rate compare, the above method of the application can improve data transmission bauds.
In a kind of possible implementation, in handoff threshold of the handover request including handover event mark, serving cell
In the case of the cell channel parameter of serving cell, when handover event is designated the first default handover event mark, and service
When the cell channel parameter of cell is not higher than the handoff threshold of serving cell, target BS configures the data transfer of serving cell
Information as Target cell data transfer configuration information.So provide a kind of setting data transfer configuration with feasibility
The method of information.
In alternatively possible implementation, in switching door of the handover request including handover event mark, serving cell
In the case of the handoff threshold of limit and Target cell, when handover event is designated the second default handover event mark, and target
When the handoff threshold of cell is not less than the handoff threshold of serving cell, target BS is by the data transfer configuration information of serving cell
It is used as the data transfer configuration information of Target cell.So provide another setting data transfer with feasibility and match somebody with somebody confidence
The method of breath.
5th aspect provides a kind of base station, with the leading sequence of transmission on a random access channel for realizing first aspect offer
The function of base station behavior in the method for row.The function can be realized by hardware, and corresponding software can also be performed by hardware
Realize.Hardware or software include one or more modules corresponding with above-mentioned functions.
6th aspect provides a kind of terminal, with the leading sequence of transmission on a random access channel for realizing second aspect offer
The function of terminal behavior in the method for row.The function can be realized by hardware, and corresponding software can also be performed by hardware
Realize.Hardware or software include one or more modules corresponding with above-mentioned functions.
7th aspect provides a kind of base station, with the method for realizing the setting data transfer configuration information that the third aspect is provided
The function of middle base station behavior.The function can be realized by hardware, and corresponding software can also be performed by hardware and is realized.Hardware
Or software includes one or more modules corresponding with above-mentioned functions.
Eighth aspect provides a kind of base station, with the method for realizing the setting data transfer configuration information that fourth aspect is provided
The function of middle base station behavior.The function can be realized by hardware, and corresponding software can also be performed by hardware and is realized.Hardware
Or software includes one or more modules corresponding with above-mentioned functions.
The another aspect of the application is provided in a kind of computer-readable recording medium, computer-readable recording medium and stored
There is instruction, when run on a computer so that the method that computer performs above-mentioned each side.
The another aspect of the application provides a kind of computer program product for including instruction, when it runs on computers
When so that the method that computer performs above-mentioned each side.
In embodiments herein, before base station can be obtained according to leading initial receiving power and the calculating of up-downgoing path loss difference
Receiving power (i.e. leading transmit power) is led, because result of calculation take into account in the up path loss during practical communication with
The difference that walking along the street is damaged, its closer actual desired leading transmit power.When terminal is leading using leading transmit power transmission
During sequence, it is possible to increase channel access success rate.The present embodiment can reduce the number of times for attempting access channel, can reduce random
Access delay, accelerates Stochastic accessing speed.
Brief description of the drawings
Fig. 1 is a structural representation of base station in the embodiment of the present application；
Fig. 2 is a structural representation of terminal in the embodiment of the present application；
Fig. 3 be the embodiment of the present application in send on a random access channel targeting sequencing method a schematic diagram；
Fig. 4 be the embodiment of the present application in communication scenes a schematic diagram；
Fig. 5 is a schematic diagram of the method for setting data transfer configuration information in the embodiment of the present application；
Fig. 6 be the embodiment of the present application in communication scenes another schematic diagram；
Fig. 7 is another schematic diagram of the method for setting data transfer configuration information in the embodiment of the present application；
Fig. 8 is another structural representation of base station in the embodiment of the present application；
Fig. 9 is another structural representation of base station in the embodiment of the present application；
Figure 10 is another structural representation of terminal in the embodiment of the present application；
Figure 11 is another structural representation of base station in the embodiment of the present application；
Figure 12 is another structural representation of base station in the embodiment of the present application.
Embodiment
Communication system first to the application is introduced, and communication system can be Long Term Evolution (Long Term
Evolution, LTE), the upgrading (LTE-Advanced, LTE-A) of Long Term Evolution, UMTS (Universal
Mobile Telecommunications System, UMTS), global system for mobile communications (Global System for
Mobile Communications, GSM), CDMA (Code Division Multiple Access, CDMA), broadband
CDMA (Wideband Code Division Multiple Access, WCDMA) etc..
The method for sending targeting sequencing on a random access channel that the application is provided is mainly used in base station and terminal
Interaction.In wireless communications, up-link refers to communication link of the signal from terminal to base station, and downlink refers to signal
Communication link from base station to terminal.Signal is referred to as path loss (pathloss), abbreviation road in the loss that spatial is produced
Damage, signal is referred to as up path loss in the loss that up-link is produced, signal is referred to as descending in the loss that downlink is produced
Path loss, up path loss and the difference of downlink path loss can be described as up-downgoing path loss difference.
Base station can refer to evolved node B (evolved Node Base, eNB), radio network controller (Radio
Network Controller, RNC), node B (Node B, NB), base station controller (Base Station Controller,
BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB (Home Node B, HNB) or base band
Unit (Baseband Unit, BBU).
Terminal refers to the equipment for providing a user voice and/or data connectivity, the hand-held with wireless connecting function
Equipment or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network (English full name：
Radio Access Network, English abbreviation：RAN) communicated with one or more core nets, wireless terminal can be moved
Dynamic terminal, such as mobile phone (or being " honeycomb " phone) and the computer with mobile terminal, for example, it may be portable,
Pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or number with wireless access network
According to.For example, at the beginning of PCS (Personal Communication Service, PCS) phone, wireless phone, session
Beginning agreement (Session Initiation Protocol, SIP) phone, WLL (Wireless Local Loop,
WLL) stand, the equipment such as personal digital assistant (Personal Digital Assistant, PDA).Wireless terminal is referred to as
System, subscri er unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile
Station), mobile station (Mobile), distant station (Remote Station), access point (Access Point), remote terminal
(Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), terminal device,
User agent (User Agent), user equipment (User Device) or subscriber's installation (User Equipment).
Referring to Fig. 1, base station 100 includes receiver 101, emitter 102, processor 103, memory 104 and bus, connect
It is connected with each other and is communicated by bus between receipts machine 101, emitter 102, processor 103 and memory 104.It is understood that
Base station can also including network interface etc. module, network interface be used for and other network device communications in network, such as core
Net equipment, base station or other kinds of access network equipment (such as access point).Wherein, receiver 101, emitter 102, processor
103rd, the quantity of memory 104 can be one or more.Receiver 101 and emitter 102 can be it is independent or
It is integrated into a transceiver.
Wherein, memory 104 is used for store program codes.By calling the program code in memory 104, processor
103 can perform following operation：The message that base station is sent is received using receiver 101, message includes the first leading receiving power；
It regard the first leading receiving power as the first leading transmit power；The first leading transmit power is used to base using emitter 102
Stand and send targeting sequencing.
Referring to Fig. 2, terminal 200 includes receiver 201, emitter 202, processor 203, memory 204 and bus, connect
It is connected with each other and is communicated by bus between receipts machine 201, emitter 202, processor 203 and memory 204.Terminal can also include
Input the modules such as input equipment.Wherein, receiver 201, emitter 202, processor 203, the quantity of memory 204 can be one
It is individual or multiple.Receiver 201 and emitter 202 can be independent or be integrated into a transceiver.
Memory 204 is used for store program codes.By calling the program code in memory 204, processor 203 can be with
Perform following operate：The message that base station is sent is received using receiver 201, message includes the first leading receiving power；By first
Leading receiving power is used as the first leading transmit power；Sent using emitter 202 using the first leading transmit power to base station
Targeting sequencing.
Referring to Fig. 3, the one embodiment for the method for sending targeting sequencing on a random access channel that the application is provided
Including：
Step 301, base station obtain leading initial receiving power and the first up-downgoing path loss difference, according to leading initial reception work(
Rate and the first up-downgoing path loss difference determine the first leading receiving power.
In the present embodiment, for each cell of base station, base station can obtain in real time cell up path loss and under
Row path loss, up-downgoing path loss difference is calculated according to up path loss and downlink path loss.Specifically formula can be：ΔPL
=PL_u-PL_d or Δ PL=| PL_u-PL_d |.Δ PL is up-downgoing path loss difference, and PL_u is lost for up path, and PL_d is
Downlink path loss.
When first time calculating leading receiving power, the up-downgoing path loss difference of acquisition is the first up-downgoing path loss difference.Base station
Obtain after the first up-downgoing path loss difference, can determine that first is leading according to leading initial receiving power and the first up-downgoing path loss difference
Receiving power.Specifically formula can be：P1=P0+ Δs PL1.P0 is leading initial receiving power, and Δ PL1 is about the first walking along the street
It is poor to damage, and P1 is the first leading receiving power.Leading initial receiving power is leading initial reception target power of the prior art.
Step 302, base station include the message of the first leading receiving power to terminal transmission.
Wherein, the first leading receiving power can be arranged in switching command or power configuration, for example, passing through switching
The PreambleInitialReceivedTargetPower fields of instruction carry the first leading receiving power.First leading reception
Power can also be arranged in other custom fields.
Step 303, terminal regard the first leading receiving power as the first leading transmit power.
Step 304, terminal send targeting sequencing using the first leading transmit power to base station.
Wherein, targeting sequencing is also referred to as preamble sequence, refers to the sequence being made up of some lead codes.
After terminal, which is received, includes the message of the first leading receiving power, using the first leading receiving power as before first
Lead transmit power.Base station is received after targeting sequencing at the appointed time, and accidental channel response can be sent to terminal, terminal is represented
Access channel success.If base station does not receive targeting sequencing at the appointed time, then represent terminal access channel failure, base station
Need to calculate leading receiving power again so that the leading receiving power that terminal is obtained according to recalculating retransmits targeting sequencing.
The duration of stipulated time can be with third generation partner program (the 3rd Generation Partnership
Project, 3GPP) duration as defined in agreement is consistent, can specifically refer in 3GPP agreements on Stochastic accessing waiting time
Content.Regulation duration self-defined can also be set.
In the present embodiment, base station can calculate according to leading initial receiving power and up-downgoing path loss difference and obtain leading reception
Power (i.e. the leading transmit power of terminal), because result of calculation take into account in the up path loss during practical communication with
The difference that walking along the street is damaged, compared with the leading transmit power that existing method is calculated, its closer actual desired leading transmit power.
When terminal sends targeting sequencing using the leading transmit power of the application, it is possible to increase channel access success rate.The present embodiment
The number of times for attempting access channel can be reduced, so as to reduce Stochastic accessing time delay, accelerates Stochastic accessing speed.
Secondly, leading transmit power is calculated by base station, terminal without calculating leading transmission work(in the random access procedure
Rate, can reduce the power consumption of terminal.Because existing battery standby duration is limited, the power consumption of reduction terminal can extend making for terminal
Use duration.
In actual applications, in addition to the difference of up-downgoing path loss can cause leading transmit power not accurate enough, channel
The change of noise can also influence the precision of leading transmit power.In order to solve the above problems, calculated this application provides another
The method of leading transmit power, can further improve the precision of leading transmit power.In one alternate embodiment, in step
Before 302, the above method also includes：Base station obtains the noise of RACH and bottom is made an uproar, according to making an uproar for RACH
Sound and bottom are made an uproar determination noise incremental quantity；Then step 302 is specially：Base station is according to leading initial receiving power, the first up-downgoing path loss
Difference and noise incremental quantity determine the first leading receiving power.
In the present embodiment, for Physical Random Access Channel (Physical Random Access Channel,
PRACH), base station can obtain interchannel noise in real time, and being made an uproar to calculate according to the interchannel noise of acquisition and bottom obtains noise incremental quantity,
Then the first leading receiving power is determined according to leading initial receiving power, the first up-downgoing path loss difference and noise incremental quantity.Calculate
The specific formula of first leading receiving power can be：P1=P0+ Δ PL1+ Δs N.Δ N be channel noise incremental quantity, P1, P0,
Δ PL1 is consistent with P1, P0, Δ PL1 in above-described embodiment respectively.In the present embodiment, calculate what is obtained by increasing noise incremental quantity
First leading receiving power, its closer actual desired leading receiving power.Time of access channel is so attempted by reducing
Number, can reduce Stochastic accessing time delay, accelerate Stochastic accessing speed.
In another alternative embodiment, in step 301, base station is according to leading initial receiving power and the first up-downgoing
Path loss difference determines that the first leading receiving power is specifically as follows：Base station is according to leading initial receiving power, the first up-downgoing path loss
The default noise incremental quantity of difference and RACH determines the first leading receiving power.In the present embodiment, base station can be obtained
The average value or weighted average of a period of time interior measurement result to interchannel noise, then calculate above-mentioned average value and make an uproar it the bottom of with
Difference, draws noise incremental quantity.Compared with prior art, the closer actual desired leading transmission of the leading transmit power of the present embodiment
Power.
It is after step 302, above-mentioned in another alternative embodiment based on embodiment illustrated in fig. 3 or alternative embodiment
Method also includes：When base station does not receive the targeting sequencing of terminal transmission at the appointed time, base station obtains the second up-downgoing
Path loss difference, determines the second leading receiving power according to the first leading receiving power and the second up-downgoing path loss difference, is sent to terminal
Include the message of the second leading receiving power；Second leading receiving power as the second leading transmit power, is used by terminal
Two leading transmit powers send targeting sequencing.
In the present embodiment, when base station does not receive the targeting sequencing of terminal transmission at the appointed time, represent that terminal connects
Enter channel failure, base station needs to calculate leading receiving power again, the leading receiving power for making terminal be obtained according to recalculating
Retransmit targeting sequencing.For the leading transmit power of second of transmission targeting sequencing, specific formula can be：P2=P1+ Δs
PL2, P2 are the second leading receiving power, and P1 is the first leading receiving power, and Δ PL2 refers to the second up-downgoing path loss difference.Second
Up-downgoing path loss difference refers to when calculating leading receiving power for the second time, the up-downgoing path loss difference of acquisition.
It is understood that base station can be periodically detected to the targeting sequencing that terminal is sent, if base station is not received
To targeting sequencing, then the leading receiving power once obtained before and current up-downgoing path loss difference calculate leading reception work(
Rate.Specifically formula can be：P (n)=P (n-1)+Δ PL (n), P (n) are the leading transmit powers of n-th, P (n-1) is n-th-
The leading transmit power of 1 time, Δ PL (n) is the up-downgoing path loss difference of n-th.
In another alternative embodiment, specific formula can be：P (n)=P (n-1)+Δ PL (n)+Δ N (n).P(n)
It is the leading transmit power of n-th, P (n-1) is the leading transmit power of (n-1)th time, and Δ PL (n) is n-th up-downgoing path loss
Difference, Δ N (n) is n-th noise incremental quantity.
It should be noted that base station can set a maximum access channel number of times max, by the bar for setting n≤max
Part, can limit the number of times that each terminal attempts access channel.When a terminal repeatedly attempts access channel failure, base station can
To provide the chance of access channel for other-end, to improve the utilization rate of channel.
In another alternative embodiment, after step 302, targeting sequencing is not received at the appointed time in base station
When, base station obtains stepping power, and according to the first leading receiving power and the transmit power of stepping power calculation second, base station will include
The message of second leading receiving power is sent to terminal, terminal using the second leading receiving power as the second leading transmit power,
Targeting sequencing is sent using the second leading transmit power.
In the present embodiment, stepping power can be consistent with stepping power of the prior art, can also be according to actual conditions
It is self-defined to set.The the first leading receiving power obtained due to the application is closer to the leading receiving power that is actually needed, therefore
Base station increases stepping power on the basis of the first leading receiving power, it is possible to increase the success rate of access channel, so can
Shorten Stochastic accessing time delay, improve the speed of Stochastic accessing.It is understood that the targeting sequencing that base station can be sent to terminal
It is periodically detected, if base station does not receive targeting sequencing, is increased on the basis of the preceding leading receiving power once obtained
Plus stepping power, until Stochastic accessing success.
When terminal is from during serving cell is switched to Target cell, it is necessary to unite after terminal is switched to Target cell
The up-downgoing of Target cell is eated dishes without rice or wine information in meter a period of time, selects data transfer configuration information further according to metrical information, for example
Modulation with coding strategy (Modulation and Coding Scheme, MCS), modulation type (Modulation Type) and
Transmission mode (Transport mode, TM) etc..Statistics duration is generally 10 Transmission Time Interval (Transmission
Time Interval, TTI).
Tables 1 and 2 is referred to, the data transmission information before and after switching is described in detail below, table 1 is clothes before switching
The data transmission information table for cell of being engaged in.Wherein, TB Size refer to transmission block (Transport Block, TB) size, unit
For byte (byte).QPSK (Quadrature Phase Shift Keying, QPSK) is a kind of digital modulation side
Formula.Quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) is another digital adjustment mode.
16QAM refers to the qam mode for including 16 kinds of symbols.
| TTI | TB Size | MCS | Modulation Type |
| 1 | 1002 | 9 | QPSK |
| 2 | 1002 | 9 | QPSK |
| … | … | … | … |
| 100 | 1002 | 9 | QPSK |
Table 1
Table 2 is the data transmission information table of Target cell after switching.
| Subframe | TB Size | MCS | Modulation Type |
| 1 | 176 | 0 | QPSK |
| 2 | 176 | 0 | QPSK |
| … | … | … | … |
| 10 | 176 | 0 | QPSK |
| 11 | 1098 | 11 | 16QAM |
| … | … | … | … |
| 200 | 1098 | 11 | 16QAM |
Table 2
As it can be seen from table 1 the 1st~100 TTI before the handover, each TTI transmitted data amounts are 1002 bytes,
MCS index value is 9, and modulation type is QPSK.
From table 2 it can be seen that the 1st~10 TTI after handover, each TTI transmitted data amounts are 176 bytes, MCS
Index value be 0, modulation type is QPSK.After information is eated dishes without rice or wine in the up-downgoing that base station measurement obtains Target cell, base station choosing
The MCS that index value is 11 is taken, modulation type is set to 16QAM, and the data volume of each TTI transmission is 1098 bytes.
As can be seen from Table 1 and Table 2, the period for information of being eated dishes without rice or wine in the up-downgoing for counting Target cell, in Target cell
The data transfer configuration information of middle acquiescence is minimalist configuration, and now message transmission rate is the minimum speed limit allowed.Before switching
Compare, incipient stage message transmission rate after handover occurs in that obvious decline.
In order to solve the above problems, the application provides a kind of method for setting data transfer to configure, it is possible to increase data are passed
Defeated speed.This method can apply to station switching or the switching of different station.
First, exemplified by with switching of standing, communication scenes schematic diagram when Fig. 4 is with station switching.Base station corresponds to clothes
Cell of being engaged in and Target cell, terminal can be switched in serving cell and Target cell.Wherein, the structure of base station can be such as figure
Shown in 1.The structure of terminal can be as shown in Figure 2.In a base station, by calling the program code of memory storage, processor can
The method for performing the setting data transfer configuration information in the application.
Referring to Fig. 5, the side of the setting data transfer configuration information provided based on the communication equipment shown in Fig. 4, the application
One embodiment of method includes：
The measurement report that step 501, base station receiving terminal are sent, measurement report includes the cell channel parameter of serving cell
With the cell channel parameter of Target cell.
In the present embodiment, cell channel parameter is cell channel quality or Cell level.In LTE, cell channel quality
Can be that Reference Signal Received Power (Reference Signal Receiving Power, RSRP) or reference signal receive matter
Measure (Reference Signal Receiving Quality, RSRQ).In wcdma, cell channel quality can be received
Signal code power (Received Signal Code Power, RSCP).
Step 502, base station determine the data transfer configuration information of serving cell according to the cell channel parameter of serving cell.
Base station determines serving cell according to default cell channel parameter and the rule of correspondence of data transfer configuration information
The corresponding data transfer configuration information of cell channel parameter.Data transfer configuration information includes MCS, modulation type or data transfer
One or more in pattern, TM is the abbreviation of data-transmission mode.
Step 503, switch to Target cell when terminal, and the cell channel parameter of Target cell is more than the small of serving cell
During area's channel parameter, base station using the data transfer configuration information of serving cell as Target cell data transfer configuration information.
Specifically, when terminal switches to Target cell, base station may determine that Target cell cell channel parameter whether
More than the cell channel parameter of serving cell, if being more than, show that the channel quality of Target cell is more preferable, base station can be in target
Cell carries out data modulation using the MCS and modulation type of serving cell, or carries out data using the transmission mode of serving cell
Transmission.If being not more than, show that the channel quality of Target cell is not good, base station can not use the number of serving cell in Target cell
According to transmission of configuration information.
It should be noted that base station uses duration that the data transfer configuration information of serving cell carries out data transmission can be with
Set according to actual conditions, be not limited to above-mentioned statistics duration (such as 10 TTI), can be with longer or shorter.
In the present embodiment, when terminal is switched to Target cell from serving cell, base station can be by the data of serving cell
Transmission of configuration information as Target cell data transfer configuration information, so Target cell message transmission rate with clothes
The message transmission rate for cell of being engaged in is consistent.Compared with prior art uses minimum message transmission rate, the present embodiment can be carried
High data transmission bauds.
In one alternate embodiment, measurement report can also include handover event mark；
Step 503 is specifically as follows：When terminal switches to Target cell, and handover event is designated default handover event mark
During knowledge, base station using the data transfer configuration information of serving cell as Target cell data transfer configuration information.
Specifically, when the handover event that measurement report is carried is designated A3, base station can determine the cell of Target cell
Channel quality be higher than serving cell cell channel quality, or Target cell Cell level higher than serving cell cell electricity
It is flat.Terminal is switched to after Target cell, and base station can use the data transfer configuration information of serving cell.When the switching thing of terminal
When part is default handover event, base station can directly determine the cell channel parameter of Target cell and the cell channel of serving cell
The comparative result of parameter, and without comparing the cell channel parameter of two cells.
Above example sets the data transfer configuration information of Target cell based on the measurement report before switching, and base station may be used also
To set the data transfer configuration information of Target cell according to the measurement report after switching.Based on embodiment illustrated in fig. 5 or optional
Embodiment, in another alternative embodiment, after the step 503, the above method also includes：The survey that base station receiving terminal is sent
Amount report, measurement report includes the cell channel parameter of Target cell；Target is determined according to the cell channel parameter of Target cell
The data transfer configuration information of cell.
In the present embodiment, after the handover, terminal can generate measurement report, and the measurement report includes the small of Target cell
Area's channel parameter.The measurement report is sent to base station by terminal, and base station is obtained after the cell channel parameter of Target cell, according to pre-
If cell channel parameter and data transfer configuration information the rule of correspondence, determine that the cell channel parameter of Target cell is corresponding
Data transfer configuration information.So, after terminal switches to Target cell and obtain Target cell cell channel parameter it
Before, base station uses the data transfer configuration information of serving cell, and after the cell channel parameter of Target cell is obtained, base station is adopted
With the data transfer configuration information of Target cell.Compared with prior art, the present embodiment can improve message transmission rate.
Above to being described with station switching, exemplified by being switched below by different station, Fig. 6 is communication when different station switches
Schematic diagram of a scenario.Source base station corresponds to serving cell, and target BS corresponds to Target cell, and terminal can be in serving cell and mesh
Mark cell is switched over.Wherein, the structure of source base station or target BS is as shown in Figure 1.The structure of terminal is as shown in Figure 2.
In target BS, by calling the program code of memory storage, the setting data transfer that processor can perform in the application is matched somebody with somebody
The method of confidence breath.
Based on the communication equipment shown in Fig. 6, it is possible to implement the method for the setting data transfer configuration that the application is provided.It please join
Fig. 7 is read, another embodiment of the method for the setting data transfer configuration information that the application is provided includes：
The measurement report that step 701, source base station receiving terminal are sent, the cell channel that measurement report includes serving cell is joined
The cell channel parameter of number and Target cell.
In the present embodiment, source base station corresponds to serving cell, and target BS corresponds to Target cell.Cell channel parameter is
Cell channel quality or Cell level.
Step 702, source base station determine that the data transfer of serving cell matches somebody with somebody confidence according to the cell channel parameter of serving cell
Breath.
Step 703, target BS receive the handover request that source base station is sent.
Step 704, when handover request meets preparatory condition, target BS is by the data transfer configuration information of serving cell
It is used as the data transfer configuration information of Target cell.
In one alternate embodiment, handover request includes handover event mark, the handoff threshold of serving cell and service
The cell channel parameter of cell；When handover event is designated the first default handover event mark, and the cell channel of serving cell
When parameter is not higher than the handoff threshold of serving cell, target BS is small as target using the data transfer configuration information of serving cell
The data transfer configuration information in area.
Specifically, when handover event is designated A4, then showing the cell channel parameter of Target cell higher than serving cell
Handoff threshold, if the cell channel parameter of serving cell is less than or equal to the handoff threshold of serving cell, can determine target
The cell channel parameter of cell is higher than the cell channel parameter of serving cell, and Target cell, which is met, sets the data of serving cell to pass
The requirement of defeated configuration information.
In another alternative embodiment, handover request includes handover event mark, the handoff threshold and mesh of serving cell
Mark the handoff threshold of cell；When handover event is designated the second default handover event mark, and the handoff threshold of Target cell
When being not less than the handoff threshold of serving cell, target BS regard the data transfer configuration information of serving cell as Target cell
Data transfer configuration information.
Specifically, when handover event is designated A5, showing the cell channel parameter of serving cell less than serving cell
Handoff threshold, and handoff threshold of the cell channel parameter higher than Target cell of Target cell.If the handoff threshold of Target cell
More than or equal to serving cell handoff threshold when, then can determine that the cell channel parameter of Target cell is more than serving cell
Cell channel parameter, Target cell meets the requirement for the data transfer configuration information for setting serving cell.
Above example sets the data transfer configuration information of Target cell based on the measurement report before switching, and base station may be used also
To set the data transfer configuration information of Target cell according to the measurement report after switching.Based on embodiment illustrated in fig. 7 or optional
Embodiment, in another alternative embodiment, after step 704, the above method also includes：Target BS obtains terminal and sent
Measurement report, measurement report includes the cell channel parameter of Target cell；Target BS is according to the cell channel of Target cell
Parameter, determines the data transfer configuration information of Target cell.
In the present embodiment, after the handover, terminal can generate measurement report, and the measurement report includes the small of Target cell
Area's channel parameter.The measurement report is sent to base station by terminal, and base station is obtained after the cell channel parameter of Target cell, according to pre-
If cell channel parameter and data transfer configuration information the rule of correspondence, determine that the cell channel parameter of Target cell is corresponding
Data transfer configuration information.So, terminal is switched to after Target cell and before the cell channel parameter of Target cell is obtained,
Base station uses the data transfer configuration information of serving cell, after the cell channel parameter of Target cell is obtained, and base station is used
The data transfer configuration information of Target cell.Compared with prior art, message transmission rate can be effectively improved.
The application provides a kind of base station 800, can realize the function of base station in embodiment illustrated in fig. 3 or alternative embodiment.
Referring to Fig. 8, one embodiment of base station 800 includes：
Acquisition module 801, for obtaining leading initial receiving power and the first up-downgoing path loss difference；
Determining module 802, for being connected before determining first according to leading initial receiving power and the first up-downgoing path loss difference
Receive power；
Sending module 803, includes the message of the first leading receiving power for being sent to terminal, including the first leading reception
The message of power is used for instruction terminal and sends targeting sequencing using the first leading receiving power.
In one alternate embodiment,
Acquisition module 801, the noise and bottom for being additionally operable to obtain RACH is made an uproar, according to the noise of RACH
Made an uproar determination noise incremental quantity the bottom of with；
Determining module 802, specifically for true according to leading initial receiving power, the first up-downgoing path loss difference and noise incremental quantity
Fixed first leading receiving power.
Based on embodiment illustrated in fig. 8 or alternative embodiment, in another alternative embodiment, base station 800 also includes receiving
Module 901；
Acquisition module 801, is additionally operable to when receiving module 901 does not receive the targeting sequencing of terminal transmission at the appointed time
When, obtain the second up-downgoing path loss difference；
Determining module 802, is additionally operable to determine that second is leading according to the first leading receiving power and the second up-downgoing path loss difference
Receiving power；
Sending module 803, being additionally operable to send to terminal includes the message of the second leading receiving power.
The application provides a kind of terminal 1000, can realize the function of terminal in embodiment illustrated in fig. 3 or alternative embodiment.
Referring to Fig. 10, one embodiment of terminal 1000 includes：
Receiving module 1001, the message for receiving base station transmission, message includes the first leading receiving power；
Processing module 1002, for regarding the first leading receiving power as the first leading transmit power；
Sending module 1003, for sending targeting sequencing to base station using the first leading transmit power.
In one alternate embodiment,
Receiving module 1001, be additionally operable to the transmission of reception base station includes the message of the second leading receiving power；
Processing module 1002, is additionally operable to regard the second leading receiving power as the second leading transmit power；
Sending module 1003, is also used for the second leading transmit power and sends targeting sequencing to base station.
The application provides a kind of base station 1100, can realize the function of base station in embodiment illustrated in fig. 5 or alternative embodiment.
Figure 11 is referred to, one embodiment of base station 1100 includes：
Receiving module 1101, the measurement report sent for receiving terminal, the cell that measurement report includes serving cell is believed
The cell channel parameter of road parameter and Target cell；
Determining module 1102, for determining that the data transfer of serving cell is configured according to the cell channel parameter of serving cell
Information；
Determining module 1102, is additionally operable to when terminal switches to Target cell, and the cell channel parameter of Target cell is more than
During the cell channel parameter of serving cell, the data transfer of data transfer configuration information as the Target cell of serving cell is matched somebody with somebody
Confidence ceases.
In one alternate embodiment, cell channel parameter is cell channel quality or Cell level, data transfer configuration
Information includes modulation and at least one in coding strategy, modulation type or data-transmission mode.
The application provides a kind of base station 1200, can realize target BS in embodiment illustrated in fig. 7 or alternative embodiment
Function.Figure 12 is referred to, one embodiment of base station 1200 includes：
Receiving module 1201, the handover request for receiving source base station transmission；
Processing module 1202, for when handover request meets preparatory condition, the data transfer of serving cell to be matched somebody with somebody into confidence
The data transfer configuration information as Target cell is ceased, source base station corresponds to serving cell, and target BS corresponds to Target cell.
In one alternate embodiment, when handoff threshold kimonos of the handover request including handover event mark, serving cell
During the cell channel parameter for cell of being engaged in, processing module 1202 when handover event specifically for being designated the first default handover event mark
Know, and the cell channel parameter of serving cell is when being not higher than the handoff threshold of serving cell, and the data transfer of serving cell is matched somebody with somebody
Confidence ceases the data transfer configuration information as Target cell.
In another alternative embodiment, when handover request include handover event mark, the handoff threshold of serving cell and
During the handoff threshold of Target cell, processing module 1202 when handover event specifically for being designated the second default handover event mark
Know, and the handoff threshold of Target cell is when being not less than the handoff threshold of serving cell, and the data transfer of serving cell is matched somebody with somebody into confidence
Cease the data transfer configuration information as Target cell.
In the above-described embodiments, it can come real wholly or partly by software, hardware, firmware or its any combination
It is existing.When implemented in software, it can realize in the form of a computer program product whole or in part.
The computer program product includes one or more computer instructions.Load and perform on computers the meter
During calculation machine programmed instruction, produce whole or in part according to the flow or function described in the embodiment of the present invention.The computer can
To be all-purpose computer, special-purpose computer, computer network or other programmable devices.The computer instruction can be deposited
Store up in a computer-readable storage medium, or from a computer-readable recording medium to another computer-readable recording medium
Transmission, for example, the computer instruction can pass through wired (example from web-site, computer, server or data center
Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave) mode to another website
Website, computer, server or data center are transmitted.The computer-readable recording medium can be that computer can be deposited
Any usable medium of storage is either set comprising data storages such as one or more usable mediums integrated server, data centers
It is standby.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (such as DVD) or partly lead
Body medium (such as solid state hard disc (Solid State Disk, SSD)) etc..
Above example is only to the technical scheme for illustrating the application, rather than its limitations；Although with reference to the foregoing embodiments
The application is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the scope of each embodiment of the application.
Claims (30)
1. a kind of method for sending targeting sequencing on a random access channel, it is characterised in that including：
Base station obtains leading initial receiving power and the first up-downgoing path loss difference, according to the leading initial receiving power and described
First up-downgoing path loss difference determines the first leading receiving power；
The base station is sent to terminal includes the message of the described first leading receiving power, described including the described first leading reception
The message of power is used to indicate that the terminal sends targeting sequencing using the described first leading receiving power.
2. according to the method described in claim 1, it is characterised in that described according to the leading initial receiving power and described
First up-downgoing path loss difference determines before the first leading receiving power that methods described also includes：The base station obtains Stochastic accessing
The noise of channel and bottom are made an uproar, and are made an uproar determination noise incremental quantity according to the noise of the RACH and the bottom；
Then the base station determines the first leading reception according to the leading initial receiving power and the first up-downgoing path loss difference
Power includes：The base station is according to the leading initial receiving power, the first up-downgoing path loss difference and the noise incremental quantity
Determine the first leading receiving power.
3. method according to claim 1 or 2, it is characterised in that being sent in the base station to terminal includes described first
After the message of leading receiving power, methods described also includes：
When the base station does not receive the targeting sequencing that the terminal is sent at the appointed time, the base station obtains the
Two up-downgoing path loss differences, the second leading reception is determined according to the described first leading receiving power and the second up-downgoing path loss difference
Power；
The base station is sent to the terminal includes the message of the described second leading receiving power.
4. a kind of method for sending targeting sequencing on a random access channel, it is characterised in that including：
Terminal receives the message that base station is sent, and the message includes the first leading receiving power；
Described first leading receiving power as the first leading transmit power, is used the described first leading transmission work(by the terminal
Rate sends targeting sequencing to the base station.
5. method according to claim 4, it is characterised in that it is described using the described first leading transmit power to described
Base station is sent after targeting sequencing, and methods described also includes：
What the terminal reception base station was sent includes the message of the second leading receiving power；
Described second leading receiving power as the second leading transmit power, is used the described second leading transmission work(by the terminal
Rate sends the targeting sequencing to the base station.
6. a kind of method that data transfer configuration information is set, it is characterised in that including：
The measurement report that base station receiving terminal is sent, the cell channel parameter and target that the measurement report includes serving cell is small
The cell channel parameter in area；
The base station determines the data transfer configuration information of the serving cell according to the cell channel parameter of the serving cell；
When the terminal switches to the Target cell, and the cell channel parameter of the Target cell is more than the serving cell
Cell channel parameter when, the base station using the data transfer configuration information of the serving cell as the Target cell number
According to transmission of configuration information.
7. method according to claim 6, it is characterised in that the cell channel parameter is cell channel quality or cell
Level, the data transfer configuration information includes modulation and at least one in coding strategy, modulation type or data-transmission mode
.
8. a kind of method that data transfer configuration information is set, it is characterised in that the communication system of methods described application includes source
Base station and target BS, methods described include：
The target BS receives the handover request that the source base station is sent；
When the handover request meets preparatory condition, the target BS using the data transfer configuration information of serving cell as
The data transfer configuration information of Target cell, the source base station corresponds to the serving cell, and the target BS corresponds to institute
State Target cell.
9. method according to claim 8, it is characterised in that the handover request includes handover event mark, services small
The cell channel parameter of the handoff threshold in area and the serving cell；
Then described when the handover request meets preparatory condition, the data transfer of serving cell is matched somebody with somebody confidence by the target BS
Breath includes as the data transfer configuration information of Target cell：
Identified when the handover event is designated the first default handover event, and the cell channel parameter of the serving cell is not high
When the handoff threshold of the serving cell, the target BS regard the data transfer configuration information of the serving cell as institute
State the data transfer configuration information of Target cell.
10. method according to claim 8, it is characterised in that the handover request includes handover event mark, services small
The handoff threshold in area and the handoff threshold of Target cell；
Then described when the handover request meets preparatory condition, the data transfer of serving cell is matched somebody with somebody confidence by the target BS
Breath includes as the data transfer configuration information of Target cell：
When the handover event is designated the second default handover event mark, and the handoff threshold of the Target cell is not less than
During the handoff threshold of the serving cell, the target BS is using the data transfer configuration information of the serving cell as described
The data transfer configuration information of Target cell.
11. a kind of base station, it is characterised in that including：
Acquisition module, for obtaining leading initial receiving power and the first up-downgoing path loss difference；
Determining module, for being connected before determining first according to the leading initial receiving power and the first up-downgoing path loss difference
Receive power；
Sending module, includes the message of the described first leading receiving power for being sent to terminal, described including before described first
Leading the message of receiving power is used to indicate that the terminal sends targeting sequencing using the described first leading receiving power.
12. base station according to claim 11, it is characterised in that
The acquisition module, is additionally operable in the determining module according to the leading initial receiving power and first up-downgoing
Path loss difference determines before the first leading receiving power that the noise and bottom for obtaining RACH are made an uproar, according to the Stochastic accessing
The noise of channel and the bottom are made an uproar determination noise incremental quantity；
The determining module, specifically for according to the leading initial receiving power, the first up-downgoing path loss difference and described
Noise incremental quantity determines the first leading receiving power.
13. the base station according to claim 11 or 12, it is characterised in that the base station also includes receiving module；
The acquisition module, be additionally operable to when the receiving module do not receive that the terminal sends at the appointed time it is described before
When leading sequence, the second up-downgoing path loss difference is obtained；
The determining module, is additionally operable to determine second according to the described first leading receiving power and the second up-downgoing path loss difference
Leading receiving power；
The sending module, being additionally operable to send to the terminal includes the message of the described second leading receiving power.
14. a kind of terminal, it is characterised in that including：
Receiving module, the message for receiving base station transmission, the message includes the first leading receiving power；
Processing module, for regarding the described first leading receiving power as the first leading transmit power；
Sending module, for sending targeting sequencing to the base station using the described first leading transmit power.
15. terminal according to claim 14, it is characterised in that
The receiving module, is additionally operable to receive that the base station sends includes the message of the second leading receiving power；
The processing module, is additionally operable to regard the described second leading receiving power as the second leading transmit power；
The sending module, is also used for the described second leading transmit power and sends targeting sequencing to the base station.
16. a kind of base station, it is characterised in that including：
Receiving module, the measurement report sent for receiving terminal, the cell channel that the measurement report includes serving cell is joined
The cell channel parameter of number and Target cell；
Determining module, for determining that the data transfer of the serving cell is configured according to the cell channel parameter of the serving cell
Information；
The determining module, is additionally operable to when the terminal switches to the Target cell, and the cell channel of the Target cell
When parameter is more than the cell channel parameter of the serving cell, using the data transfer configuration information of the serving cell as described
The data transfer configuration information of Target cell.
17. base station according to claim 16, it is characterised in that the cell channel parameter is cell channel quality or small
Area's level, the data transfer configuration information is included in modulation and coding strategy, modulation type or data-transmission mode at least
One.
18. a kind of base station, it is characterised in that the base station is as target BS, and the base station includes：
Receiving module, the handover request for receiving source base station transmission；
Processing module, for when the handover request meets preparatory condition, the data transfer of the serving cell to be matched somebody with somebody into confidence
The data transfer configuration information as the Target cell is ceased, the source base station corresponds to the serving cell, the target base
Stand corresponding to the Target cell.
19. base station according to claim 18, it is characterised in that
When the handover request includes the cell channel of handover event mark, the handoff threshold of serving cell and the serving cell
During parameter, the processing module when the handover event specifically for being designated the first default handover event mark, and the clothes
When the cell channel parameter of business cell is not higher than the handoff threshold of the serving cell, the data transfer of the serving cell is matched somebody with somebody
Confidence ceases the data transfer configuration information as the Target cell.
20. base station according to claim 18, it is characterised in that when the handover request includes handover event mark, clothes
Be engaged in cell handoff threshold and Target cell handoff threshold when, the processing module specifically for when the handover event identify
It is not less than the handoff threshold of the serving cell for the handoff threshold of the second default handover event mark, and the Target cell
When, using the data transfer configuration information of the serving cell as the Target cell data transfer configuration information.
21. a kind of base station, it is characterised in that including：
Receiver, emitter, processor, memory and bus, the receiver, the emitter, the processor and described
It is connected with each other and is communicated by the bus between memory；
The memory, for storing operational order and program；
By calling the operational order and program of the memory storage, the processor is used to perform following operation：
Leading initial receiving power and the first up-downgoing path loss difference are obtained, according to the leading initial receiving power and described first
Up-downgoing path loss difference determines the first leading receiving power；
Being sent using the emitter to terminal includes the message of the described first leading receiving power, described including before described first
Leading the message of receiving power is used to indicate that the terminal sends targeting sequencing using the described first leading receiving power.
22. base station according to claim 21, it is characterised in that
The processor, the noise and bottom for being additionally operable to obtain RACH is made an uproar, according to the noise of the RACH
Made an uproar determination noise incremental quantity with the bottom；According to the leading initial receiving power, the first up-downgoing path loss difference and described make an uproar
Sound increment determines the first leading receiving power.
23. the base station according to claim 21 or 22, it is characterised in that
The processor, is additionally operable to when the receiver does not receive the leading sequence that the terminal is sent at the appointed time
During row, the second up-downgoing path loss difference is obtained；Second is determined according to the described first leading receiving power and the second up-downgoing path loss difference
Leading receiving power；Being sent using the emitter to the terminal includes the message of the described second leading receiving power.
24. a kind of terminal, it is characterised in that including：
Receiver, emitter, processor, memory and bus, the receiver, the emitter, the processor and described
It is connected with each other and is communicated by the bus between memory；
The memory, for storing operational order and program；
By calling the program of the memory storage, the processor is used to perform following operation：
The message that base station is sent is received using the receiver, the message includes the first leading receiving power；
It regard the described first leading receiving power as the first leading transmit power；
Using the emitter targeting sequencing is sent using the described first leading transmit power to the base station.
25. terminal according to claim 24, it is characterised in that
The processor is additionally operable to, when the receiver does not receive the Stochastic accessing sound that the base station is sent at the appointed time
At once, the message of the second leading receiving power is included using what the receiver reception base station was sent；Before described second
Receiving power is led as the second leading transmit power；The described second leading transmit power is used to the base using the emitter
Stand and send the targeting sequencing.
26. a kind of base station, it is characterised in that including：
Receiver, emitter, processor, memory and bus, the receiver, the emitter, the processor and described
It is connected with each other and is communicated by the bus between memory；
The memory, for storing operational order and program；
By calling the program of memory storage, processor is used to perform following operation：
The measurement report sent using the receiver receiving terminal, the cell channel that the measurement report includes serving cell is joined
The cell channel parameter of number and Target cell；
The data transfer configuration information of the serving cell is determined according to the cell channel parameter of the serving cell；
When the terminal switches to the Target cell, and the cell channel parameter of the Target cell is more than the serving cell
Cell channel parameter when, the data transfer of data transfer configuration information as the Target cell of the serving cell is matched somebody with somebody
Confidence ceases.
27. base station according to claim 26, it is characterised in that the cell channel parameter is cell channel quality or small
Area's level, the data transfer configuration information is included in modulation and coding strategy, modulation type or data-transmission mode at least
One.
28. a kind of base station, it is characterised in that the base station is as target BS, and the base station includes：
Receiver, emitter, processor, memory and bus, the receiver, the emitter, the processor and described
It is connected with each other and is communicated by the bus between memory；
The memory, for storing operational order and program；
By calling the program of memory storage, processor is used to perform following operation：
The handover request that the source base station is sent is received using the receiver；
When the handover request meets preparatory condition, the data transfer configuration information of the serving cell is regard as the target
The data transfer configuration information of cell, the source base station corresponds to the serving cell, and the target BS corresponds to the mesh
Mark cell.
29. base station according to claim 28, it is characterised in that
When the handover request includes the cell channel of handover event mark, the handoff threshold of serving cell and the serving cell
During parameter, the processor when the handover event specifically for being designated the first default handover event mark, and the service
When the cell channel parameter of cell is not higher than the handoff threshold of the serving cell, the data transfer of the serving cell is configured
Information as the Target cell data transfer configuration information.
30. base station according to claim 28, it is characterised in that
When the handover request includes the handoff threshold of handover event mark, the handoff threshold of serving cell and Target cell,
The processor when the handover event specifically for being designated the second default handover event mark, and the Target cell is cut
When changing thresholding and being not less than the handoff threshold of the serving cell, using the data transfer configuration information of the serving cell as described
The data transfer configuration information of Target cell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464145.0A CN107333336B (en) | 2017-06-19 | 2017-06-19 | Method, base station and terminal for sending leader sequence on random access channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464145.0A CN107333336B (en) | 2017-06-19 | 2017-06-19 | Method, base station and terminal for sending leader sequence on random access channel |
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| CN107333336A true CN107333336A (en) | 2017-11-07 |
| CN107333336B CN107333336B (en) | 2020-11-10 |
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