CN105101449B - A kind of method and client terminal for realizing pilot frequency point networking - Google Patents
A kind of method and client terminal for realizing pilot frequency point networking Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of method and client terminal for realizing pilot frequency point networking, and method includes：Using the first variable that the first number bit record is newly-increased in LTE network Master Information Block, and using the second number bit the second variable of record；Using the third variable and the 4th variable that third number bit record is newly-increased in the random value of radio resource control connection request, at least one frequency point information for including most weak and/or strongest neighboring community's dominant frequency RSRP is recorded in third variable and the 4th variable；ENode B select auxiliary frequency to carry out pilot frequency point networking with main plot dominant frequency among each auxiliary frequency of main plot, and auxiliary frequency is minimum by the interference of each neighboring community's dominant frequency RSRP recorded in frequency point information.The required neighboring community's dominant frequency RSRP of pilot frequency point networking is recorded in data structure variable, and is reported to the eNode B of network side, and networking is carried out with main plot dominant frequency for network side selection auxiliary frequency.
Description
Technical field
The present invention relates to long-term evolving network technology, particularly relates to a kind of method that realizing pilot frequency point networking and client is whole
End.
Background technology
The flow of client terminal (UE) initial random access in long term evolution (LTE, Long Term Evolution) network
As shown in Figure 1, including：
The first step provides that LTE cells one share 64 targeting sequencings for random access according to agreement
(Preamble), belong to Group A and Group B.UE according in SIB2 message parameter instruction first select Group A or
Person Group B, then randomly choose a Preamble from selected Group according to probabilities such as particular equations, UE to
Preamble is sent on fixed Physical Random Access Channel (PRACH, Physical Random Access Channel).
Second step, UE monitor random access response (RAR, Random Access Response (s)) on PDCCH, when
After UE is successfully received RAR, the mark user with band when sending Preamble originally in RAR sends out random access guiding and is used
Resource block (RA-RNTI), indicate that UE has been successfully received RAR, obtain synchronization time and the isochronous resources of uplink, and
One Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI, Cell Radio Network Temporary Identifier), C-
RNTI will decide whether to switch to permanent C-RNTI in the Contention Resolution of the 4th step.
Third walks, and UE sends RRC Connection Request (Msg3) on prach, but UE not can determine that
The RAR of eNode B hair is intended for oneself without being intended for other UE, because there are different UE in same time and identical
The possibility of identical Preamble is selected in frequency resource, then it is possible that there is different UE on identical ascending resource
Msg3 is sent simultaneously, because RA-RNTI is exactly to be calculated according to the two dimensions.For this purpose, in RRC Connection
Request can carry the UE ID that the length that one generates at random is 40 and be used to distinguish different UE.The ue- that now net uses
In Identity randomValue：
4th step, UE have sent RRC Connection Request and have started certain timer, if in this timer
Between in range, the UEID that is carried in contention resolved (Contention Resolution) message received in radio resource control
Entrained UEID is identical in protocol connection request (RRC Connection Request) processed, then this time random access success,
And Temporary C-RNTI are set as to the C-RNTI of oneself.Otherwise it is assumed that this random access failure, discards
Temporary C-RNTI, and restart random access.
It is recognised that the effect of long 40 UE ID is to solve different UE on identical ascending resource simultaneously
Send the contradiction of RRC Connection Request.
5th step, eNode B send RRC Connection Setup to UE.
The initial designs of LTE network do not allow UE report neighboring community's dominant frequency Reference Signal Received Power (RSRP,
Reference Signal Received Power), this is because LTE network acquiescence is all single-frequency point identical networking.
Existing LTE random access schemes be there are problems that：TD-LTE identical networking performances are technically considerably better than TD-
SCDMA networks, but still without fundamentally solving the problems, such as the intrinsic of identical networking, since UE does not have in the random access procedure
Neighboring community dominant frequency point signal strength RSRP is reported, therefore leads to not realize pilot frequency point networking.
Invention content
The technical problem to be solved in the present invention is to provide a kind of methods and client terminal for realizing pilot frequency point networking, for solving
Certainly in the prior art, UE does not report neighboring community dominant frequency point signal strength RSRP in the random access procedure, leads to not reality
The defect of existing pilot frequency point networking.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of method for realizing pilot frequency point networking, it is applied to
Client terminal, method include：The first variable increased newly using the first number bit record in LTE network Master Information Block, with
And the second variable is recorded using the second number bit；Third is used in the random value of radio resource control connection request
Number bit record newly-increased third variable and the 4th variable, record in third variable and the 4th variable and at least one include
The frequency point information of most weak and/or strongest neighboring community dominant frequency RSRP；By the eNode B of LTE network from each auxiliary of main plot
At least one auxiliary frequency is selected to carry out pilot frequency point networking with main plot dominant frequency among frequency, at least one auxiliary frequency is by the frequency point
The interference of each neighboring community's dominant frequency RSRP recorded in information is minimum.
In the method, using the first variable that the first number bit record is newly-increased in LTE network Master Information Block
It specifically includes：1 bit is occupied in the regions spare of LTE network Master Information Block records first variable；First variable
Two kinds of values indicate to use single-frequency point networking mode respectively, or use pilot frequency point networking mode.
In the method, the second variable occupies 2 to 3 bits in LTE network Master Information Block spare regions, when the
One variable enables the second variable when indicating using pilot frequency point networking mode, does not otherwise carry the second change in LTE network Master Information Block
Amount；7 kinds of values are shared when the second variable occupies 3 bits：000, instruction client terminal is in RRC Connection
The neighboring community's dominant frequency RSRP deviants arrived without reporting measurement in Request；001, instruction client terminal is in RRC
It is 1 that neighboring community's dominant frequency RSRP deviants that reporting measurement arrives are needed in Connection Request, and is most weak 1
It is a；010, instruction client terminal needs the neighboring community dominant frequency RSRP that reporting measurement arrives in RRC Connection Request
Deviant is 1, and is strongest 1；011, instruction client terminal needs to report in RRC Connection Request
The neighboring community's dominant frequency RSRP deviants measured are 2, and are most weak 2；100, instruction client terminal is in RRC
It is 2 that neighboring community's dominant frequency RSRP deviants that reporting measurement arrives are needed in Connection Request, and is strongest 2
It is a；101, instruction client terminal needs the neighboring community dominant frequency RSRP that reporting measurement arrives in RRC Connection Request
Deviant is 3, and is most weak 3；110, instruction UE needs reporting measurement to arrive in RRC Connection Request
Neighboring community's dominant frequency RSRP deviants be 3, and be strongest 3.
In the method, remembered using third number bit in the random value of radio resource control connection request
The newly-increased third variable of record and the 4th variable include：Remembered using 7 integral multiple bit in 40 bits that random value has
Record newly-increased third variable and the 4th variable, and the number of bits that frequency point information specifically uses should be：Include in second variable
Neighboring community's dominant frequency RSRP deviants number * 7；Unadapted bit is still used to record random value.
In the method, in the frequency point information, every 7 bits are one group, and in each group, third variable occupies 4
The each dominant frequency for the neighboring community that a bit instruction reports.
In the method, in each group of 7 bits, it is adjacent that the 4th variable R SRP_Offset occupies 3 bit instructions
Deviants of the cell dominant frequency RSRP relative to main plot dominant frequency RSRP.
A kind of client terminal, is applied to LTE network, and client terminal includes：Internet message unit, in LTE network master
The second variable is recorded using the first number bit record newly-increased the first variable and the second number bit in block of information；
Protocol modification unit, for new using third number bit record in the random value of radio resource control connection request
The third variable Frequency_Order and the 4th variable R SRP_Offset of increasing, report in third variable and the 4th variable
Few one frequency point information for including most weak and/or strongest neighboring community's dominant frequency RSRP；It is small from master by the eNode B of LTE network
Select at least one auxiliary frequency and main plot dominant frequency to carry out pilot frequency point networking among each auxiliary frequency in area, at least one auxiliary frequency by
Interference to each neighboring community's dominant frequency RSRP recorded in the frequency point information is minimum.
In the client terminal, internet message unit includes：First variable generating module, in the main letter of LTE network
It ceases 1 bit of occupancy in the regions spare of block and records first variable；First variable assignments module, has for the first variable
Two kinds of values indicate to use single-frequency point networking mode respectively, or use pilot frequency point networking mode；When the first variable indicates to use
The second variable is enabled when pilot frequency point networking mode, does not otherwise carry the second variable in LTE network Master Information Block.
In the client terminal, protocol modification unit includes：Frequency point information generation module is used for 40 in random value
The third variable and the 4th variable increased newly using 7 integral multiple bit record in bit, and the ratio that frequency point information specifically uses
Special number should be：The number * 7 for the neighboring community's dominant frequency RSRP deviants for including in second variable；Unadapted bit is used
In record random value Random Value.
In the client terminal, protocol modification unit includes：Frequency point information distribution module is used for the frequency point information
In, every 7 bits are one group, and in each group, third variable occupies each master for the neighboring community that 4 bit instructions report
Frequently；In each group of 7 bits, the 4th variable R SRP_Offset occupies 2 to 3 bits and indicates neighboring community dominant frequency RSRP
Deviant relative to main plot dominant frequency RSRP.
The above-mentioned technical proposal of the present invention has the beneficial effect that：By to original LTE network Master Information Block MIB and nothing
Line Resource Control protocols connection request is transformed, and forms new data structure variable, is recorded in this data structure variable
The required neighboring community's dominant frequency RSRP of pilot frequency point networking, and be reported to the eNode B of network side, for network side selection auxiliary frequency with
Main plot dominant frequency carries out networking, realizes the pilot frequency point networking between auxiliary frequency and main plot dominant frequency.
Description of the drawings
Fig. 1 shows the flow diagrams of the initial random accesses of UE in existing LTE network；
Fig. 2 indicates a kind of method flow schematic diagram for realizing pilot frequency point networking in the lte networks；
Fig. 3 indicates that LTE network realizes the process schematic of pilot frequency point networking.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Good system performance will be obtained by inter-frequency networking by solving prior art problem.
Pilot frequency point networking if UE can report the signal strength (RSRP) of neighboring community's dominant frequency point, or reports adjacent
Cell RSRP is most weak or strongest several dominant frequency, and UE can select that smaller frequency point is interfered to carry out resource allocation accordingly, to reduce
Interference.In an application scenarios, LTE network is 3 frequency point inter-frequency networkings, altogether 4 cells, respective dominant frequency point and auxiliary frequency point
Distribution is as follows：
| Cell | Dominant frequency point | Auxiliary frequency point 1 | Auxiliary frequency point 2 |
| Cell A | F1 | F2 | F3 |
| Cell B | F2 | F3 | F1 |
| Cell C | F3 | F2 | F1 |
| Cell D | F2 | F1 | F3 |
UE initiates calling in the dominant frequency point F1 of Cell A, if it is possible to report neighboring community Cell B, the Cell received
The RSRP of dominant frequency f2, f3 of C and Cell D, eNode B can be the minimum auxiliary frequency point of UE distribution interference accordingly.For example, on UE
The RSRP of the f2 (the sum of Cell B and Cell D dominant frequency RSRP) of report is -65dBm, and the RSRP of Cell C dominant frequency f3 is -85dBm,
So f2 is greater than interference of the f3 to Cell A auxiliary frequency points f3 to the interference of Cell A auxiliary frequency points f2, therefore eNode B can be by UE
Distribution is on f3 frequency points, to reduce interference of neighboring community's dominant frequency to its auxiliary frequency point.This is that UE reports neighboring community RSRP
One of technical advantage.It can be that follow-up optimization brings many potential benefits.
The present invention breaks the limitation of LTE network identical networking, is not changing LTE network Master Information Block (MIB, Master
Information Block) and radio resource control connection request (RRC Connection Request) Signalling length,
A kind of completely new signaling format is provided in the case of size to realize pilot frequency point networking.
The frequency range length for the flexible networking that LTE network introduces is 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz
Pilot frequency point networking may be implemented in 6 kinds of frequency ranges altogether completely.Single-frequency point 20MHz networkings had both may be implemented in the frequency bandwidth of 20MHz,
It can also realize 2 frequency points (10MHz single-frequency points) networking, (5MHz single-frequency points) networking of 4 frequency points and 6 frequency points (3MHz single-frequency points) networking
Deng.Wherein, the starting frequency point of D frequency ranges is 37750, if frequency range length uses 10MHz, if first center frequency point is 37800,
The center frequency point of second frequency point is 37800+100=37900.If frequency range length is using if 20MHz, first frequency band
Center frequency point is 37750+100=37850；The center frequency point of second frequency point is 37750+200=37950.Remember frequency band
Initial frequency point can calculate subsequent center frequency point according to frequency bandwidth.
The embodiment of the present invention provides a kind of method for realizing pilot frequency point networking, as shown in Fig. 2, it is applied to client terminal UE,
Method includes：
Step 21, using the first variable that the first number bit record is newly-increased in LTE network Master Information Block
NFrequency and the second number bit record the second variable numberOf-Frequency；
Step 22, third number is used in the random value of radio resource control connection request (Random Value)
A bit record newly-increased third variable and the 4th variable, report at least one comprising most weak in third variable and the 4th variable
And/or the frequency point information of strongest neighboring community's dominant frequency RSRP；By eNode B auxiliary frequency is selected among each auxiliary frequency of main plot
Pilot frequency point networking is carried out with main plot dominant frequency, auxiliary frequency is by each neighboring community's dominant frequency RSRP's recorded in the frequency point information
Interference is minimum.
Using the technology provided, asked by being connected with radio resource control to original LTE network Master Information Block
It asks and is transformed, form new data structure variable, the required phase of pilot frequency point networking is recorded in this data structure variable
Adjacent cell dominant frequency RSRP, and the eNode B of network side are reported to, networking is carried out with main plot dominant frequency for network side selection auxiliary frequency,
Realize the pilot frequency point networking between auxiliary frequency and main plot dominant frequency.
In a preferred embodiment, the increased newly using the first number bit record in LTE network Master Information Block
One variable nFrequency is specifically included：
1 bit is occupied in the regions spare of LTE network Master Information Block records first variable；
There are two types of values for first variable, indicate to use single-frequency point networking mode respectively, or use pilot frequency point networking mode；
The second variable is enabled when the first variable is indicated using pilot frequency point networking mode, otherwise in LTE network Master Information Block
The second variable is not carried.
First number is four, and 1 bit is occupied in the regions spare of MIB and records the first variable nFrequency, the
One variable nFrequency has two kinds of values altogether, each value range and is meant that：
Value is that 0 representative uses single-frequency point networking mode, value to be represented for 1 and use pilot frequency point networking mode；When the first change
Measurement value just has bivariate record when being 1, does not otherwise carry the second variable in LTE network Master Information Block.
First variable description networking mode, neighboring community's dominant frequency RSRP deviants that the second variable description reporting measurement arrives
Number.
In a preferred embodiment, the second variable occupies 2 to 3 ratios in the regions LTE network Master Information Block spare
Spy shares 7 kinds of values when the second variable occupies 3 bits：
000, the neighboring community master that instruction client terminal arrives in RRC Connection Request without reporting measurement
Frequency RSRP deviants；
001, instruction client terminal needs the neighboring community master that reporting measurement arrives in RRC Connection Request
Frequency RSRP deviants are 1, and are most weak 1；
010, instruction client terminal needs the neighboring community master that reporting measurement arrives in RRC Connection Request
Frequency RSRP deviants are 1, and are strongest 1；
011, instruction client terminal needs the neighboring community master that reporting measurement arrives in RRC Connection Request
Frequency RSRP deviants are 2, and are most weak 2；
100, instruction client terminal needs the neighboring community master that reporting measurement arrives in RRC Connection Request
Frequency RSRP deviants are 2, and are strongest 2；
101, instruction client terminal needs the neighboring community master that reporting measurement arrives in RRC Connection Request
Frequency RSRP deviants are 3, and are most weak 3；
110, instruction UE needs the neighboring community dominant frequency RSRP that reporting measurement arrives in RRC Connection Request
Deviant is 3, and is strongest 3.
In an application scenarios, MIB message formats are changed.
MIB message formats defined in 3GPP TS36.331：
The regions spare have 10 bits altogether in MIB, in 3GPP agreements and the effect in this undefined region, to the spare
Region be transformed and utilize accordingly.
Extract 3 bits in 10 bits, wherein whether 1 bit record uses pilot frequency point networking, 2 bits to be used for
Record needs reporting measurement to the number of neighboring community's dominant frequency RSRP deviants of eNode B, and the number reported is no more than 3
It is a.
In a preferred embodiment, using third number in the random value of radio resource control connection request
Bit record newly-increased third variable and the 4th variable include：
The third variable and the 4th variable increased newly using 7 integral multiple bit record in 40 bits of random value,
And the number of bits that frequency point information specifically uses should be：For the neighboring community's dominant frequency RSRP deviants for including in second variable
The number of number * 7, neighboring community's dominant frequency RSRP deviants is less than or equal to 3；
Unadapted bit is for recording random value Random Value.
7 integral multiple is 7 or 14 or 21 bits, is corresponded to, the most weak or strongest neighboring community master reported
The number of frequency RSRP is 1,2 or 3.When the frequency point information occupies 7 bits, in third variable Frequency_
Each dominant frequency of the neighboring community reported using 4 bit instructions in Order.
In a preferred embodiment, in each group of 7 bits, the 4th variable R SRP_Offset occupies 3 ratios and refers in particular to
Show deviants of the neighboring community dominant frequency RSRP relative to main plot dominant frequency RSRP, referred to as：Neighboring community's dominant frequency RSRP deviants.One
In a cell, only dominant frequency, which is only not stopping paying out round-the-clockly, penetrates signal, and auxiliary frequency only just emits when in use, therefore
There it is contemplated that drift conditions of the neighboring community dominant frequency RSRP relative to main plot dominant frequency RSRP.
Remaining bit is then still used to record Random Value in 40 bits of random value.
In an application scenarios, RRC Connection Request message (RRC Connection are changed
Request message) format.
3GPP TS36.331 are defined on the RRC Random that 40 bits are used in RRC Connection Request
Value solves different UE on identical ascending resource while sending the contradiction of RRC Connection Request, therefore
Two UE collide-select probability of the same UE ID is 1/240, this probability value is very low-down, therefore can
With some bits in the Random Value that suitably make a short-term loan on for realizing the technology of the present invention.
If not indicating the second variable using 3 bits, but 2 bits is used to indicate the second variable, for reporting
1,2 or 3 most weak RSRP frequency point, these three values are divided into following three kinds of situations：
NumberOf-Frequency=01, neighboring community's dominant frequency RSRP deviants that reporting measurement arrives are 1, therefore are needed
7 bits of making a short-term loan on form third variable and the 4th variable, and remaining 33 bit are used for Random Value.
NumberOf-Frequency=10, neighboring community's dominant frequency RSRP deviants that reporting measurement arrives are 2, therefore are needed
14 bits of making a short-term loan on form third variable and the 4th variable, and remaining 26 bit are used for Random Value.
NumberOf-Frequency=11, neighboring community's dominant frequency RSRP deviants that reporting measurement arrives are 3, therefore are needed
21 bits of making a short-term loan on form third variable and the 4th variable, and remaining 19 bit are used for Random Value.
The length of first variable Frequency_Order is 4 bits, is used to indicate each dominant frequency of neighboring community, UE
Understand that its correspondence is as follows with the sides eNode B：
| Binary system | It is converted into the decimal system | Meaning |
| 0000 | 0 | The frequency point f1 of low-limit frequency in corresponding neighboring community's dominant frequency |
| 0001 | 1 | Frequency point f2 |
| 0010 | 2 | Frequency point f3 |
| 0011 | 3 | Frequency point f4 |
| …… | …… | …… |
| 1111 | 16 | Frequency point f16 (highest frequency in neighboring community) |
Since eNode B know main plot is configured with which neighboring community and the dominant frequency of these neighboring communities,
Know sequence of the dominant frequency of these neighboring communities according to frequency from low to high.
UE then can learn the adjacent cell information of oneself by system message SIB4 and SIB5.Therefore, it is reported by UE
Third variable Frequency_Order, eNode B can retrieve specific frequency point.
The frequency of frequency point f1 to f16 is successively from low to high.Pilot frequency point networking plan improves co-channel interference, but different
The quantity of frequency point is not The more the better.Frequency point is more, it is meant that the handling capacity of single-frequency point is lower, and each operator can take
Bin width be also limited, therefore pilot frequency point networking plan is at most no more than 16.
The length of 4th variable R SRP_Offset is 3 bits, the frequency point for each neighboring communities received UE
RSRP, the deviant relative to main plot signal strength refer to：
000, the RSRP of the frequency point is higher than main serving cell；
001,0dB<=main serving cell RSRP- frequency points RSRP<5dB；
010,5dB<=main serving cell RSRP- frequency points RSRP<10dB；
011,10dB<=main serving cell RSRP- frequency points RSRP<15dB；
100,15dB<=main serving cell RSRP- frequency points RSRP<20dB；
101,20dB<=main serving cell RSRP- frequency points RSRP<25dB；
110,20dB<=main serving cell RSRP- frequency points RSRP<25dB；
111, retention.
New RRC Connection Request message does not change the length of RRC Connection Request message
Spend size.The probability (selecting the same UE ID) that although two UE collide after modification, according to numberOf-Frequency
Difference declined, but the probability that two UE collide under N frequency point networkings is still extremely small.
In an application scenarios, as shown in figure 3, LTE network realizes that the process of pilot frequency point networking includes：
Step 31, when the first variable nFrequency in MIB message is 1, the second variable numberOf- is just had
Otherwise the record of Frequency continues to use original random access format and algorithm.
Step 32, the second variable numberOf-Frequency occupies 3 bits and records 7 kinds of values, be divided into 000,001,
010,011,100,101 and 110.
Step 33, the neighboring community master that 000 instruction UE is arrived in RRC Connection Request without reporting measurement
Frequency RSRP deviants；Go to step 34a；
001 or 010 instruction UE needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 1.001 refers to most weak 1, and 010 refers to strongest 1；Go to step 34b；
011 or 100 instruction UE need neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 2.011 refers to most weak 2, and 100 refer to strongest 2；Go to step 34c；
101 or 110 instruction UE need neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 3.101 refer to most weak 3, and 110 refer to strongest 3, goes to step 34d.
Step 34, a continues to use original random access algorithm format and flow；
B needs 7 bits of Random Value in short-term loan at daily interest RRC Connection Request to be used for this technology side
Case, remaining 33 bit are used for Random Value, and in 7 bits, 4 bits are for recording Frequency_Order, 3 bits
For recording RSRP_Offset.
C needs 14 bits of Random Value in short-term loan at daily interest RRC Connection Request to be used for this technology side
Case, remaining 26 bit are used for Random Value, and 14 bits record the Frequency_Order and RSRP_ of 2 frequency points
Offset。
D needs 21 bits of Random Value in short-term loan at daily interest RRC Connection Request to be used for this technology side
Case, remaining 19 bit are used for Random Value, and 21 bits record the Frequency_Order and RSRP_ of 3 frequency points
Offset。
The embodiment of the present invention provides a kind of client terminal, is applied to LTE network, and client terminal includes：
Internet message unit, first for being increased newly using the first number bit record in LTE network Master Information Block
Variable and the second number bit record the second variable；
Protocol modification unit, for using third number to compare in the random value of radio resource control connection request
Spy's record newly-increased third variable Frequency_Order and the 4th variable R SRP_Offset, in third variable and the 4th variable
In report it is at least one comprising most weak and/or strongest neighboring community's dominant frequency RSRP frequency point information；By the eNode of LTE network
B selects auxiliary frequency to carry out pilot frequency point networking with main plot dominant frequency among each auxiliary frequency of main plot, and auxiliary frequency is believed by the frequency point
The interference of each neighboring community's dominant frequency RSRP recorded in breath is minimum.
In a preferred embodiment, internet message unit includes：
First variable generating module records institute for occupying 1 bit in the regions spare of LTE network Master Information Block
State the first variable；
First variable assignments module, for the first variable, there are two types of values, indicate to use single-frequency point networking mode respectively, or
Person uses pilot frequency point networking mode；The second variable is enabled when the first variable is indicated using pilot frequency point networking mode, otherwise LTE nets
The second variable is not carried in network Master Information Block.
In a preferred embodiment, protocol modification unit includes：
Frequency point information generation module, for newly-increased using 7 integral multiple bit record in 40 bits of random value
Third variable and the 4th variable, and the number of bits that frequency point information specifically uses should be：Include in second variable is adjacent
The number * 7 of cell dominant frequency RSRP deviants；Unadapted bit is for recording random value Random Value.
In a preferred embodiment, protocol modification unit includes：
Frequency point information distribution module is used in the frequency point information, and every 7 bits are one group, and in each group, third becomes
Amount occupies each dominant frequency for the neighboring community that 4 bit instructions report；
In each group of 7 bits, the 4th variable R SRP_Offset occupies 2 to 3 bits and indicates neighboring community's dominant frequency
Deviants of the RSRP relative to main plot dominant frequency RSRP.
It is using the advantage after this programme：When networking mode is single-frequency point identical networking, existing random access is taken
Technology；When networking mode is pilot frequency point networking, accidental access method provided in an embodiment of the present invention is taken；It effectively makes up existing
Defect of the radio access technology under pilot frequency point networking model, will not increase signaling traffic load amount, have high practical value and innovation
Value, and be also applied for frequency division duplex (FDD, Frequency Division Duplexing) pattern and time division duplex (TDD,
Time Division Duplexing) pattern LTE network.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of method for realizing pilot frequency point networking, which is characterized in that be applied to client terminal, method includes：
Using the first variable that the first number bit record is newly-increased in long-term evolving network message, and use the second number
A bit records the second variable；
Using third number in the random value of radio resource control connection request RRC Connection Request
Bit record newly-increased third variable and the 4th variable record at least one comprising most weak in third variable and the 4th variable
And/or the frequency point information of strongest neighboring community's dominant frequency Reference Signal Received Power RSRP；By the eNode B of long-term evolving network
At least one auxiliary frequency is selected to carry out pilot frequency point networking with main plot dominant frequency among each auxiliary frequency of main plot, it is described at least one
Auxiliary frequency is minimum by the interference of each neighboring community's dominant frequency RSRP recorded in the frequency point information；
It is specifically included using the first newly-increased variable of the first number bit record in long-term evolving network message：It is drilled for a long time
First variable is recorded into 1 bit is occupied in the regions spare of internet message；Two kinds of values of the first variable indicate respectively
Using single-frequency point networking mode, or use pilot frequency point networking mode；
Second variable occupies 2 to 3 bits in the regions long-term evolving network message spare, when the first variable is indicated using different
The second variable is enabled when frequency point networking mode, does not otherwise carry the second variable in the long-term evolving network message.
2. according to the method described in claim 1, it is characterized in that, sharing 7 kinds of values when the second variable occupies 3 bits：
000, neighboring community's dominant frequency that instruction client terminal arrives in RRC Connection Request without reporting measurement
RSRP deviants；
001, instruction client terminal needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 1, and are most weak 1；
010, instruction client terminal needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 1, and are strongest 1；
011, instruction client terminal needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 2, and are most weak 2；
100, instruction client terminal needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 2, and are strongest 2；
101, instruction client terminal needs neighboring community's dominant frequency that reporting measurement arrives in RRC Connection Request
RSRP deviants are 3, and are most weak 3；
110, instruction UE need the neighboring community dominant frequency RSRP offsets that reporting measurement arrives in RRC Connection Request
Value is 3, and is strongest 3.
3. according to the method described in claim 1, it is characterized in that, in radio resource control connection request RRC
Using the third variable and the 4th variable packet that third number bit record is newly-increased in the random value of Connection Request
It includes：
Using the third variable and the 4th variable that 7 integral multiple bit record is newly-increased in random value, and frequency point information is specific
The number of bits of use should be：The number * 7 for the neighboring community's dominant frequency RSRP deviants for including in second variable；
Unadapted bit is still used to record random value.
4. according to the method described in claim 3, it is characterized in that,
In the frequency point information, every 7 bits are one group, and in each group, third variable occupies 4 bits and indicates the phase reported
Each dominant frequency of adjacent cell.
5. according to the method described in claim 4, it is characterized in that,
In each group of 7 bits, it is opposite that the 4th variable R SRP_Offset occupies 3 bit instruction neighboring community dominant frequency RSRP
In the deviant of main plot dominant frequency RSRP.
6. a kind of client terminal, which is characterized in that be applied to long-term evolving network, client terminal includes：
Internet message unit, for being become using first that the first number bit record increases newly in long-term evolving network message
Amount and the second number bit record the second variable；Second variable occupies 2 in the regions long-term evolving network message spare
To 3 bits, the second variable is enabled when the first variable is indicated using pilot frequency point networking mode, otherwise the long-term evolving network
The second variable is not carried in message；
Protocol modification unit, for being remembered using third number bit in the random value of radio resource control connection request
Record newly-increased third variable Frequency_Order and the 4th variable R SRP_Offset, in third variable and the 4th variable on
Report at least one frequency point information for including most weak and/or strongest neighboring community's dominant frequency RSRP；By LTE network eNode B from
At least one auxiliary frequency is selected to carry out pilot frequency point networking with main plot dominant frequency among each auxiliary frequency of main plot, it is described at least one auxiliary
Frequency is minimum by the interference of each neighboring community's dominant frequency RSRP recorded in the frequency point information；
Internet message unit includes：
First variable generating module records described for occupying 1 bit in the regions spare of LTE network Master Information Block
One variable；
First variable assignments module, for the first variable, there are two types of values, indicate to use single-frequency point networking mode respectively, or make
With pilot frequency point networking mode；The second variable is enabled when the first variable is indicated using pilot frequency point networking mode, otherwise LTE network master
The second variable is not carried in block of information.
7. client terminal according to claim 6, which is characterized in that protocol modification unit includes：
Frequency point information generation module, the third variable and the increased newly for the integral multiple bit record using 7 in random value
Four variables, and the number of bits that frequency point information specifically uses should be：The neighboring community dominant frequency RSRP for including in second variable is inclined
The number * 7 of shifting value；Unadapted bit is for recording random value Random Value.
8. client terminal according to claim 6, which is characterized in that protocol modification unit includes：
Frequency point information distribution module, in the frequency point information, every 7 bits to be one group, and in each group, third variable accounts for
With each dominant frequency for the neighboring community that 4 bit instructions report；
In each group of 7 bits, the 4th variable R SRP_Offset occupies 2 to 3 bits and indicates neighboring community dominant frequency RSRP
Deviant relative to main plot dominant frequency RSRP.
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| CN101247165A (en) * | 2007-02-16 | 2008-08-20 | 中兴通讯股份有限公司 | Networking system of TD-SCDMA system multi-frequency point community |
| CN101873661A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, system and terminal for determining coordinate district in CoMP system |
| CN102223664A (en) * | 2010-04-15 | 2011-10-19 | 电信科学技术研究院 | Method, system and apparatus for transmitting measurement report, and method and apparatus for determining object cell |
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| US20120026972A1 (en) * | 2010-08-02 | 2012-02-02 | Guowang Miao | Apparatus and method for supporting range expansion in a wireless network |
| EP4170986A1 (en) * | 2012-09-26 | 2023-04-26 | InterDigital Patent Holdings, Inc. | Pbch demodulation for new carrier type (nct) |
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| CN101247165A (en) * | 2007-02-16 | 2008-08-20 | 中兴通讯股份有限公司 | Networking system of TD-SCDMA system multi-frequency point community |
| CN101873661A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, system and terminal for determining coordinate district in CoMP system |
| CN102223664A (en) * | 2010-04-15 | 2011-10-19 | 电信科学技术研究院 | Method, system and apparatus for transmitting measurement report, and method and apparatus for determining object cell |
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