CN101345970B - Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system - Google Patents
Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system Download PDFInfo
- Publication number
- CN101345970B CN101345970B CN2007101305026A CN200710130502A CN101345970B CN 101345970 B CN101345970 B CN 101345970B CN 2007101305026 A CN2007101305026 A CN 2007101305026A CN 200710130502 A CN200710130502 A CN 200710130502A CN 101345970 B CN101345970 B CN 101345970B
- Authority
- CN
- China
- Prior art keywords
- path loss
- carrier
- msub
- cell
- mrow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000001174 ascending effect Effects 0.000 title 1
- 238000012937 correction Methods 0.000 claims abstract description 23
- 239000000969 carrier Substances 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000011664 signaling Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
A multicarrier enlargement upstream access system neighbour district interference measuring method, comprises: step s202: wireless network controller allocating a supportable amount of carrierwaves for NodeB and subscriber equipment and allocating dominant carrierwave frequency point marks, subsidiary carrierwave frequency point marks of service district of subscriber equipment required for measuring and reporting and neighbour district of the service district and path-loss correction parameters of the service district and neighbour district for subscriber equipment; step s204, wireless network controller sending dominant carrierwave frequency point marks, subsidiary carrierwave frequency point marks and path-loss correction parameters of the service district and neighbour district to subscriber equipment; step s206, subscriber equipment measuring dominant carrierwave path-loss of service district based on dominant carrierwave frequency point marks, subsidiary carrierwave frequency point marks and path-loss correction parameters, and calculating subsidiary carrierwave path-loss of service district, and measuring dominant carrierwave path-loss of neighbour district and calculating subsidiary carrierwave path-loss of neighbour district.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for measuring neighboring cell interference in a multi-carrier enhanced uplink access system.
Background
An enhanced uplink Access system is generally called a High Speed Uplink Packet Access (HSUPA) system, and aims to improve uplink efficiency through advanced technology, thereby effectively supporting web browsing, video, multimedia information, and other IP-based services.
The third generation partnership project (3GPP) has completed standardization of time division synchronous code division multiple access (TD-SCDMA) enhanced uplink access system. The system is suitable for a single carrier TD-SCDMA system. A new transport channel, namely an enhanced uplink dedicated transport channel (E-DCH), is added in an Enhanced Uplink (EUL), enhanced uplink data is carried on the transport channel, and the Transmission Time Interval (TTI) of the E-DCH is 5 ms. The packet mapped onto the E-DCH transport channel is called an enhanced medium access control protocol data unit (MAC-E PDU).
The physical channels associated with the E-DCH are as follows:
enhanced uplink control channel (E-UCCH): the channel is a physical layer control channel, which is carried in a physical layer indication field of the E-PUCH, wherein the control information includes: an enhanced uplink transport format indicator (E-TFCI) for indicating a current transport block length; and hybrid automatic repeat request (HARQ) information including a process ID and retransmission number information;
an E-AGCH channel (E-DCH absolute grant channel), which is a control channel and is used for transmitting grant information for a Node B (base station);
an E-PUCH (E-DCH uplink physical channel, also called enhanced uplink physical channel), which is a traffic channel and is used for a UE (User Equipment, User terminal, also called User Equipment) to carry E-DCH transport channel data, and in addition, information related to auxiliary scheduling is also transmitted on the channel;
E-RUCCH (E-DCH random access uplink control channel, i.e., enhanced uplink random access uplink control channel), which is a physical layer control channel for UE to transmit auxiliary scheduling related information without grant, the E-RUCCH using random access physical channel resources;
an E-HICH (E-DCH hybrid automatic repeat request indicator channel), which is a physical layer control channel for enabling the Node B to carry HARQ (hybrid automatic repeat request) indication information.
The enhanced uplink access service can be divided into a scheduling service and a non-scheduling service according to different scheduling modes. Wherein, the resource of the non-scheduling service is allocated to the UE by RNC (radio network controller), and the allocation mode is the same as the existing dedicated channel allocation mode; in the scheduling service, the serving rnc (srnc) allocates an enhanced uplink resource pool to the Node B, and the Node B allocates resources to a single UE. In the scheduling service, the UE needs to report some information to assist the scheduling of the Node B, where the information is called scheduling information si (scheduling information), and the information includes UE buffer information, power headroom, path loss (path loss, hereinafter, abbreviated as path loss) measurement information of the serving cell and the neighboring cell, and the like.
Fig. 1 is a signaling flow diagram of the main traffic processing performed by the entities involved in scheduling traffic. In the figure, RNC 1 allocates a scheduling service resource pool (102) to NodeB 2, is responsible for admission control (106), and configures a scheduling service bearer parameter (112) for the UE according to the allocation (110) of the NodeB to a scheduling service shared control channel; the NodeB 2 configures a resource pool to return a response (104) according to the instruction of the RNC, allocates resources (116) for the UE according to the scheduling request of the UE, and performs HARQ confirmation (120); UE 3 transmits a scheduling request when there is data transmission in the uplink to trigger transmission of scheduling information (114), performs transmission of data according to the grant of the NodeB (116 and 118), and confirms reception of information (120).
The scheduling request information includes buffer information, path loss information and power headroom information, wherein the path loss information is a reference amount of interference of NodeB control on the neighboring cell, and a path loss ratio (SNPL) between the neighboring cell and the serving cell can be obtained through the path loss information, and the expression is:
formula (1): <math>
<mrow>
<mi>Φ</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mrow>
<munderover>
<mi>Σ</mi>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>N</mi>
</munderover>
<msub>
<mi>L</mi>
<mi>serv</mi>
</msub>
<mo>/</mo>
<msub>
<mi>L</mi>
<mi>n</mi>
</msub>
</mrow>
</mfrac>
</mrow>
</math> or formula (2): <math>
<mrow>
<mi>Φ</mi>
<mo>=</mo>
<mfrac>
<mrow>
<munder>
<mi>min</mi>
<mrow>
<mi>n</mi>
<mo>=</mo>
<mn>1</mn>
<mo>.</mo>
<mo>.</mo>
<mi>N</mi>
</mrow>
</munder>
<mrow>
<mo>(</mo>
<msub>
<mi>L</mi>
<mi>n</mi>
</msub>
<mo>)</mo>
</mrow>
</mrow>
<msub>
<mi>L</mi>
<mi>serv</mi>
</msub>
</mfrac>
</mrow>
</math>
wherein L is the path loss measured by the UE, LservFor serving cell path loss, LnFor the adjacent cell path loss, the UE needs to report the information, and the Node B schedules the UE according to the information, which determines whether the UE is scheduled and allocates authorized resources to the UE (the authorized resources include authorization for power, code channel, and time slot).
To further improve the throughput of the system, the single carrier enhanced uplink system in the related art introduces a multi-carrier characteristic, and theoretically, N carriers will have N times the throughput of the single carrier system. When introducing the multi-carrier characteristic, there will be a plurality of architectures considered, one possible architecture is the multi-carrier bundling mechanism, i.e. the UE can simultaneously transmit E-DCH data on a plurality of carriers in one TTI, and the data blocks transmitted by each carrier are independent. This architecture is adopted when HSDPA (high speed downlink packet access) introduces multi-carrier characteristics, which has the advantage that the peak rate of a single UE can be increased.
In the above-mentioned multi-carrier bundling mechanism, the interference situation of each carrier reported by the UE will determine the number of carriers allocated by the NodeB to the UE in one TTI and the authorized resources on each carrier. Since the primary and secondary carriers of adjacent cells are different, for example, the primary carrier of the serving cell may be the secondary carrier of the adjacent cell, and there may be no common downlink channel on the secondary carrier, in this case, the UE may not be able to directly measure the interference of the adjacent cell on the carrier, and an effective scheme for how the UE measures and reports the information of each carrier has not been proposed so far.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is therefore a primary object of the present invention to provide a scheme for measuring neighbor cell interference in a multi-carrier enhanced uplink access system.
According to the embodiment of the invention, a method for measuring the interference of a neighboring cell of a multi-carrier enhanced uplink access system is provided.
The method comprises the following steps: step S202, a wireless network controller configures the carrier of the quantity for NodeB and user equipment according to the quantity of the carrier which can be supported by the user equipment and reported by the user equipment, and configures the main carrier frequency point identifier, the auxiliary carrier frequency point identifier and the path loss correction parameters of the service cell and the adjacent cell of the service cell where the user equipment is located and the adjacent cell of the service cell which need to be measured and reported for the user equipment;
step S204, the wireless network controller issues the main carrier frequency point identification, the auxiliary carrier frequency point identification and the path loss correction parameter of the service cell and the adjacent cell to the user equipment; and
step S206, according to the transmitted main carrier frequency point identification, the auxiliary carrier frequency point identification and the path loss correction parameter of the serving cell and the adjacent cell, the user equipment measures the main carrier path loss of the serving cell, calculates the auxiliary carrier path loss of the serving cell, measures the main carrier path loss of the adjacent cell and calculates the auxiliary carrier path loss of the adjacent cell.
Before step S206, the method may further include: establishing a propagation model, and calculating the path loss of the auxiliary carrier of the service cell according to the relationship between the frequency difference and the path loss difference between the main carrier of the service cell and the auxiliary carrier of the service cell in the propagation model; and calculating the path loss of the auxiliary carrier wave of the adjacent cell according to the relationship between the frequency difference and the path loss difference between the main carrier wave of the adjacent cell and the auxiliary carrier wave of the adjacent cell in the propagation model.
In step S206, if the co-frequency carrier of the neighboring cell corresponding to the primary carrier and/or the secondary carrier of the serving cell does not exist, the ue calculates the path loss of the co-frequency carrier of the neighboring cell to be infinite.
In step S206, the path loss of the secondary carrier of the serving cell and the path loss of the secondary carrier of the neighboring cell are calculated by the following formulas:
wherein,
as the path loss of the secondary carrier of the serving cell,
as the primary carrier path loss of the serving cell,is the path loss of the auxiliary carrier of the adjacent cell,
path loss of main carrier of adjacent cell, alphaservCorrection value of path loss of secondary carrier for serving cell, alphaneibAnd the path loss correction value of the auxiliary carrier of the adjacent cell is obtained.
In this case, based on the propagation model, the path losses of the secondary carriers of the serving cell and the neighboring cell are calculated based on the measured path losses of the primary carriers of the serving cell and the neighboring cell, respectively, and the difference between the path loss of the primary carrier of the serving cell and the path loss of the secondary carrier of the serving cell is defined as αservAnd taking the difference between the path loss of the main carrier of the adjacent cell and the path loss of the auxiliary carrier of the adjacent cell as alphaneib。
Further, the propagation model may be a cost-231 model, and parameters of the propagation model may be obtained in step S204 or determined by the user equipment.
The method may further comprise: and calculating the path loss ratio of the adjacent cell and the serving cell according to the measurement result and the calculation result in the step S206, and reporting the ratio.
By the technical scheme of the invention, the path loss of the main carrier and the path loss of the auxiliary carrier of the adjacent cell can be effectively measured, and the co-frequency interference between the service cell and the adjacent cell is determined by calculation and measurement as less as possible.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a signaling flow diagram of main processing performed by a network function entity in a single carrier enhanced uplink access system according to the related art;
fig. 2 is a schematic flowchart of a method for measuring neighbor cell interference in a multi-carrier enhanced uplink access system according to an embodiment of the present invention;
fig. 3 is a flowchart of an example of a process of a method for measuring neighbor cell interference in a multi-carrier enhanced uplink access system according to an embodiment of the present invention; and
fig. 4 is a signaling flowchart of a processing example of a method for measuring neighbor cell interference in a multi-carrier enhanced uplink access system according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the multi-carrier HSUPA according to the related art, the UE must report the path loss of the primary carrier or the secondary carrier of the neighboring cell regardless of whether the SNPL is reported independently by each carrier or the SNPL value of each carrier is reported on one carrier.
In the current multi-carrier protocol, the primary carriers between adjacent cells may be different, and there may be no downlink common channel on the secondary carrier, so the following two situations will occur:
(1) the UE supports multiple carriers, but the UE may not be able to directly measure the path loss of the secondary carrier of the adjacent cell, because the secondary carrier in the current multi-carrier protocol may not have a downlink common channel required by the UE to measure the path loss; (2) the UE supports multiple carriers, but the UE cannot know the carrier configuration condition of the neighboring cell, that is, cannot know whether the carrier of the serving cell where the UE is located is the same frequency as the carrier of the neighboring cell.
In this embodiment, a method for measuring interference of a neighboring cell in a multi-carrier enhanced uplink access system is provided, which can effectively solve the problem in the related art that a UE cannot know the path loss of a primary carrier and/or a secondary carrier of a neighboring cell.
As shown in fig. 2, the method for measuring interference of neighboring cells in a multi-carrier enhanced uplink access system according to this embodiment includes:
step S202, a wireless network controller configures the carrier of the quantity for NodeB and user equipment according to the quantity of the carrier which can be supported by the user equipment and reported by the user equipment, and configures the main carrier frequency point identifier, the auxiliary carrier frequency point identifier and the path loss correction parameters of the service cell and the adjacent cell of the service cell where the user equipment is located and the adjacent cell of the service cell which need to be measured and reported for the user equipment;
step S204, the wireless network controller issues the main carrier frequency point identification, the auxiliary carrier frequency point identification and the path loss correction parameter of the service cell and the adjacent cell to the user equipment; and
step S206, according to the transmitted main carrier frequency point identification, the auxiliary carrier frequency point identification and the path loss correction parameter of the serving cell and the adjacent cell, the user equipment measures the main carrier path loss of the serving cell, calculates the auxiliary carrier path loss of the serving cell, measures the main carrier path loss of the adjacent cell and calculates the auxiliary carrier path loss of the adjacent cell.
In step S202, when a radio resource control link (RRC) is established or a Radio Link Control (RLC) layer is reconfigured, the radio network controller issues the main carrier frequency point identifier, the auxiliary carrier frequency point identifier, and the path loss correction parameter of the serving cell and the neighboring cell to the user equipment. Preferably, the radio network controller may feed back carrier frequency point identifications of the serving cell and the neighbor cells to the user equipment in the form of table 1.
TABLE 1
Further, before step S206, the method may further include: establishing a propagation model, and calculating the path loss of the auxiliary carrier of the service cell according to the relationship between the frequency difference and the path loss difference between the main carrier of the service cell and the auxiliary carrier of the service cell in the propagation model; and calculating the path loss of the auxiliary carrier wave of the adjacent cell according to the relationship between the frequency difference and the path loss difference between the main carrier wave of the adjacent cell and the auxiliary carrier wave of the adjacent cell in the propagation model.
In step S206, if the co-frequency carrier of the neighboring cell corresponding to the primary carrier and/or the secondary carrier of the serving cell does not exist, the ue calculates the path loss of the carrier in the neighboring cell to be infinite.
Preferably, in step S206, the secondary carrier path loss of the serving cell and the secondary carrier path loss of the neighbor cell may be calculated by the following formulas:
formula (3): <math>
<mrow>
<msub>
<mi>L</mi>
<mrow>
<msub>
<mi>f</mi>
<mi>a</mi>
</msub>
<mo>_</mo>
<mi>serv</mi>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>L</mi>
<mrow>
<msub>
<mi>f</mi>
<mi>m</mi>
</msub>
<mo>_</mo>
<mi>serv</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>α</mi>
<mi>serv</mi>
</msub>
<mo>,</mo>
</mrow>
</math>
formula (4): <math>
<mrow>
<msub>
<mi>L</mi>
<mrow>
<msub>
<mi>f</mi>
<mi>a</mi>
</msub>
<mo>_</mo>
<mi>neib</mi>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>L</mi>
<mrow>
<msub>
<mi>f</mi>
<mi>m</mi>
</msub>
<mo>_</mo>
<mi>neib</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>α</mi>
<mi>neib</mi>
</msub>
<mo>,</mo>
</mrow>
</math>
wherein,
as the path loss of the secondary carrier of the serving cell,
as the primary carrier path loss of the serving cell,
is the path loss of the auxiliary carrier of the adjacent cell,
path loss of main carrier of adjacent cell, alphaservCorrection value of path loss of secondary carrier for serving cell, alphaneibAnd the path loss correction value of the auxiliary carrier of the adjacent cell is obtained.
In this case, based on the propagation model, the path losses of the secondary carriers of the serving cell and the neighboring cell are calculated based on the measured path losses of the primary carriers of the serving cell and the neighboring cell, respectively, and the difference between the path loss of the primary carrier of the serving cell and the path loss of the secondary carrier of the serving cell is defined as αservAnd taking the difference between the path loss of the main carrier of the adjacent cell and the path loss of the auxiliary carrier of the adjacent cell as alphaneib. In the same propagation model, the path loss corresponding to different frequencies is different.
As shown in table 1, for example, the UE supports 3 carriers, the system has 4 neighboring cells, and the RNC needs to send a neighboring cell carrier configuration table (table 1) to the UE, where the numbers with lower lines are the primary carriers of each cell, that is, the primary carriers of the serving cell, the neighboring cell 1, the neighboring cell 2, the neighboring cell 3, and the neighboring cell 4 where the UE is located are carriers No. 2, 3, 4, 5, and 1, respectively. The carriers used by the serving cell are numbers 2, 3, and 4, and for the serving cell, the UE needs to measure the path loss of the number 2 primary carrier according to table 1, and calculate the path loss on the corresponding number 3 and number 4 secondary carriers according to formula (3); for the adjacent cell 1, the UE needs to measure the path loss of the number 3 primary carrier according to table 1, and does not need to calculate the path loss on other carriers of the adjacent cell; for the adjacent cell 2, the UE needs to measure the path loss of the number 4 main carrier according to table 1, and calculate the path loss on the number 2 carrier according to formula (4); for the adjacent cell 3, the UE needs to measure the path loss of the number 5 main carrier according to table 1, and calculate the path loss of the number 2 and number 3 carriers according to formula (4); for the neighboring cell 4, the UE needs to measure the path loss of the number 1 primary carrier according to table 1, and calculate the path loss on the corresponding number 4 carrier according to formula (4). That is, the carriers to be measured and calculated in the neighboring cell are determined by this process.
Wherein α can be calculated by the following processservAnd alphaneib：
Further, preferably, in step S208, the SNPL may be calculated by formula (1) or formula (2), and when there is no co-channel interference between the serving cell and the neighbor cell, the path loss of the primary carrier and the secondary carrier in formula (1) and formula (2) is infinite.
For example, a cost-231 model can be used for simulation, and the path loss correction values of the serving cell and the neighboring cells are calculated by the following formula:
formula (5): alpha is alphaserv＝βlogfa_serv-βlogfm_serv，
Formula (6): alpha is alphaneib＝βlogfa_neib-βlogfm_neib。
Where β is a propagation model coefficient, β may be taken to be 33.9 in the cost-231 model, and f is a carrier frequency. Therein, various parameters of the propagation model may be obtained in step S204 or determined by the user equipment.
In addition, the method may further include: and calculating the path loss ratio of the adjacent cell and the serving cell according to the measurement result and the calculation result in the step S206, and reporting the ratio. Preferably, the ratio may be calculated by formula (1) or formula (2).
An example of the processing of this method will be described below.
Referring to fig. 1 and 4, the method according to the present embodiment may include the following processes:
corresponding to 106 in fig. 1, the UE reports its supportable carrier identifier (for example, a number corresponding to a carrier) in a radio resource control link establishment linking request or a radio link control layer reestablishment request;
corresponding to 108 in fig. 1, the radio network controller configures, for the NodeB, the multi-carrier identities supported by the UE, and the carriers (frequency points) of the neighbor cells and serving cells that need to be measured;
corresponding to 404 in fig. 4, the radio network controller configures the neighboring cell carriers (frequency points) to be measured and reported for the UE;
corresponding to 406 in fig. 4, the UE measures the primary carrier path loss and calculates the secondary carrier path loss;
corresponding to 114 in fig. 1, the UE transmits SNPL information through a scheduling request;
then, the processing according to the embodiment of the present invention is performed, that is, the carrier path loss of the neighboring cell and the serving cell measured by the UE is as shown in fig. 3, which specifically includes the following steps:
302, the UE reads carrier information when a radio resource control link is established or a radio link control layer is reconfigured;
304, the UE measures the path loss of the main carrier of the service cell, and calculates the path loss of the auxiliary carrier of the service cell according to a formula (3) according to the carrier information when the radio resource control link is established or the radio link control layer is reconfigured;
306, the UE determines whether to measure the path loss of a certain frequency point of the adjacent cell according to the carrier information when the radio resource control link is established or re-established;
307, if the neighboring cell does not have the frequency point, the path loss of the frequency point in the neighboring cell is infinite;
310, if necessary, measuring the main carrier of the adjacent cell, and calculating the path loss of the auxiliary carrier to be measured of the adjacent cell according to the carrier (frequency point) configuration and the formula (4);
the UE judges whether the frequency points of the adjacent cells need to be measured (312);
if not, selecting the frequency point of the next adjacent cell for measurement (308), and repeating 306, 310 and 312;
314, if the measurement is finished, calculating SNPL and reporting to NodeB through SI message.
Fig. 4 shows a signalling flow diagram of a processing example of a method according to an embodiment of the invention. As shown in fig. 4, RNC 1 reports the maximum uplink transmission power when a radio resource control link is established or a radio link control layer is reconfigured, where the reported content may include a carrier list of a serving cell (this cell) and an adjacent cell, identifiers of a primary carrier and an auxiliary carrier, and an auxiliary carrier path loss correction parameter (402); sending scheduling service control parameters to the UE 3, wherein the parameters comprise carrier lists of a serving cell and an adjacent cell, main carrier and auxiliary carrier identifications and auxiliary carrier path loss correction parameters (404); then, UE 3 measures and calculates the path loss (406), UE 3 sends a scheduling request, which includes the power headroom of each carrier in the serving cell where it is located; after authorization by NodeB 2, UE 3 data is sent to NodeB 2(412), and an acknowledgement indication from NodeB 2 is received (414).
In summary, by means of the technical scheme of the present invention, the main carrier path loss and the auxiliary carrier path loss of the neighboring cell can be effectively measured, the co-channel interference existing between the serving cell and the neighboring cell is determined by calculation and measurement as less as possible, and the blank in the related art is filled.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for measuring interference of a neighboring cell of a multi-carrier enhanced uplink access system is characterized by comprising the following steps:
step S202, a radio network controller configures carriers of the number for NodeB and user equipment according to the number of the carriers which can be supported by the user equipment and is reported by the user equipment, and configures a serving cell where the user equipment is located and a main carrier frequency point identifier and a secondary carrier frequency point identifier of a neighboring cell of the serving cell, which need to be measured and reported, and path loss correction parameters of the serving cell and the neighboring cell for the user equipment;
step S204, the wireless network controller sends the main carrier frequency point identification, the auxiliary carrier frequency point identification and the path loss correction parameter of the service cell and the adjacent cell to the user equipment; and
step S206, according to the transmitted main carrier frequency point identifier, auxiliary carrier frequency point identifier and path loss correction parameter of the serving cell and the adjacent cell, the UE measures the main carrier path loss of the serving cell, calculates the auxiliary carrier path loss of the serving cell, measures the main carrier path loss of the adjacent cell, and calculates the auxiliary carrier path loss of the adjacent cell;
wherein the step S206 includes: establishing a propagation model, and calculating the path loss of the auxiliary carrier of the service cell according to the relationship between the frequency difference and the path loss difference between the main carrier of the service cell and the auxiliary carrier of the service cell in the propagation model; and calculating the path loss of the auxiliary carrier wave of the adjacent cell according to the relationship between the frequency difference and the path loss difference between the main carrier wave of the adjacent cell and the auxiliary carrier wave of the adjacent cell in the propagation model.
2. The method according to claim 1, wherein in step S206, when there is no co-channel carrier of the neighboring cell corresponding to the primary carrier and/or the secondary carrier of the serving cell, the ue calculates the path loss of the co-channel carrier of the neighboring cell to infinity.
3. The method of claim 1, wherein in step S206, the path loss of the secondary carrier of the serving cell and the path loss of the secondary carrier of the neighboring cell are calculated according to the following formulas:
wherein,
serv is the secondary carrier path loss of the serving cell,
for the primary carrier path loss of the serving cell,
is the path loss of the auxiliary carrier of the adjacent cell,
is the path loss of the main carrier of the adjacent cell, alphaservIs a secondary carrier path loss correction value, alpha, for the serving cellneibAnd the path loss correction value is the auxiliary carrier path loss correction value of the adjacent cell.
4. The method of claim 1, wherein the propagation model is a cost-231 model.
5. The method of claim 1, wherein parameters of the propagation model are obtained in step S204 or determined by the ue.
6. The method of claim 1, further comprising: and calculating the path loss ratio of the neighboring cell and the serving cell according to the measurement result and the calculation result in the step S206, and reporting the ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101305026A CN101345970B (en) | 2007-07-09 | 2007-07-09 | Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101305026A CN101345970B (en) | 2007-07-09 | 2007-07-09 | Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101345970A CN101345970A (en) | 2009-01-14 |
| CN101345970B true CN101345970B (en) | 2012-06-06 |
Family
ID=40247832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101305026A Expired - Fee Related CN101345970B (en) | 2007-07-09 | 2007-07-09 | Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101345970B (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177753B (en) * | 2008-08-08 | 2014-06-25 | 诺基亚西门子通信公司 | Method and apparatus for controlling power of mobile station |
| WO2010083653A1 (en) * | 2009-01-23 | 2010-07-29 | 华为技术有限公司 | Cell measurement method, device and system in a multiple carrier frequency system |
| US8804631B2 (en) * | 2009-03-02 | 2014-08-12 | Mediatek Inc. | Method and apparatus for communicating carrier configuration in multi-carrier OFDM systems |
| US8385832B2 (en) * | 2009-03-13 | 2013-02-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Inter-cell interference control in an uplink multi-carrier radio communications system |
| CN101854656A (en) * | 2009-04-03 | 2010-10-06 | 大唐移动通信设备有限公司 | Method for measuring SNPL (Serving and Neighbor Path Loss) in multicarrier system, RNC (Radio Network Controller) and multicarrier terminal |
| CN101873702B (en) * | 2009-04-24 | 2013-01-23 | 中国移动通信集团公司 | Method for selecting main carrier and base station equipment |
| CN101873667B (en) * | 2009-04-24 | 2013-05-15 | 中国移动通信集团公司 | A method for selecting a main carrier and related equipment |
| CN101932014A (en) * | 2009-06-23 | 2010-12-29 | 中兴通讯股份有限公司 | Method for processing measurement configuration in carrier aggregation |
| WO2011011918A1 (en) * | 2009-07-30 | 2011-02-03 | 中兴通讯股份有限公司 | Method for transmitting neighbor cell information |
| CN104917600B (en) * | 2009-08-28 | 2018-05-11 | 华为技术有限公司 | Member carrier collocation method, equipment and system under carrier aggregation scene |
| BR112012007089A2 (en) * | 2009-09-30 | 2016-04-19 | Alcatel Lucent | method and equipment for processing communication between the network management device and user equipment |
| CN102123476B (en) * | 2010-01-08 | 2015-04-01 | 中兴通讯股份有限公司 | Method and system for transmitting multi-carrier uplink data on network side |
| CN102123521B (en) * | 2010-01-12 | 2015-01-28 | 中兴通讯股份有限公司 | Method and system for transmitting data on multicarrier enhancement type special channel |
| CN102131229B (en) * | 2010-01-15 | 2013-05-08 | 鼎桥通信技术有限公司 | Uplink access method in high-speed uplink packet access |
| CN102149143A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for managing carrier resources in multi-carrier system |
| CN102202336B (en) * | 2010-03-22 | 2015-06-03 | 中兴通讯股份有限公司 | System and method for configuring shared-channel neighbour cell of high speed uplink packet access in multi-carrier system |
| CN102202341A (en) * | 2010-03-24 | 2011-09-28 | 中兴通讯股份有限公司 | SNPL reporting and updating method and terminal of multi-carrier HSUPA system |
| CN102238619B (en) * | 2010-05-06 | 2015-06-10 | 中兴通讯股份有限公司 | Method and system for processing measurement event in multi-carrier system |
| CN102421119A (en) * | 2010-09-28 | 2012-04-18 | 中兴通讯股份有限公司 | Method and system for reporting additional measuring result |
| CN102065455A (en) * | 2010-12-02 | 2011-05-18 | 中兴通讯股份有限公司 | Link loss composite measurement method and device for uplink power control in carrier aggregation |
| CN102595439B (en) * | 2011-01-11 | 2014-12-31 | 华为技术有限公司 | Multicarrier measurement control method, device and system |
| EP2687051A1 (en) * | 2011-03-17 | 2014-01-22 | Nokia Solutions and Networks Oy | Method and apparatus for determining transmission power |
| CN103379500B (en) * | 2012-04-16 | 2018-04-13 | 马维尔国际有限公司 | Co-frequency interference elimination method and equipment based on dual carrier downlink system |
| CN104243123B (en) * | 2014-09-23 | 2018-03-30 | 中国联合网络通信集团有限公司 | Configure the method and device of carrier wave |
| CN105792222B (en) * | 2014-12-23 | 2020-02-11 | 中兴通讯股份有限公司 | Method for eliminating co-channel interference, detection method and device and base station |
| CN105790911B (en) * | 2014-12-26 | 2020-07-31 | 北京三星通信技术研究有限公司 | Method and device for configuring uplink and downlink carriers |
| CN109937589B (en) | 2017-08-11 | 2021-03-23 | 华为技术有限公司 | Method and apparatus for transmitting and receiving data |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805592A (en) * | 2005-01-11 | 2006-07-19 | 大唐移动通信设备有限公司 | Measurement control method for switching between mobile communication cells |
-
2007
- 2007-07-09 CN CN2007101305026A patent/CN101345970B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1805592A (en) * | 2005-01-11 | 2006-07-19 | 大唐移动通信设备有限公司 | Measurement control method for switching between mobile communication cells |
Non-Patent Citations (4)
| Title |
|---|
| $’( 移动通信系统上行链路增强与演进技术.《电信快报》.2007,(第4期),第4-8页. * |
| GPP Organizational Partners.Physical layer procedures (TDD).《3GPP TS 25.224 V7.3.0》.2007,全文. * |
| 彭木根，陈书平，王文博.#$)%&$’( 移动通信系统上行链路增强与演进技术.《电信快报》.2007,(第4期),第4-8页. |
| 彭木根,陈书平,王文博.#$)%& * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101345970A (en) | 2009-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101345970B (en) | Method for measuring neighbor community interference of multi-carrier wave reinforced ascending access system | |
| US11700666B2 (en) | Method and apparatus for triggering transmission carrier selection in wireless communication system | |
| CN101340711B (en) | Scheduling information reporting method of multi-carrier enhanced uplink access system | |
| CN101340622B (en) | Distribution method of multi-carrier reinforced uplink power resource | |
| CN101340712B (en) | Scheduling information reporting method of multi-carrier enhanced uplink access system | |
| US9832668B2 (en) | Method and apparatus for measuring radio resource use per traffic class in a wireless communication system | |
| CN101753274B (en) | Resource scheduling method, system and equipment in time division duplex high speed downlink packet access (TDD HSDPA) system | |
| EP2145436B1 (en) | Methods of generating a data block in a mobile communication system | |
| CN101902817A (en) | Uplink radio resource dispatching method and device for wireless communication system | |
| CN101646206B (en) | Selection method for strengthening dedicated channel transport format set and device thereof | |
| WO2009038363A2 (en) | Method of transmitting a data block in a wireless communication system | |
| WO2014017503A1 (en) | Mobile communication system and mobile communication method used in mobile communication system | |
| CN101527963B (en) | Resource allocation method and system for realizing inter-cell interference control | |
| CN101860914A (en) | Method and terminal for reporting radio frequency capability, network resource distribution method and system | |
| KR101406586B1 (en) | Method and terminal for setting a happy bit on an uplink enhanced control channel | |
| CN101316426B (en) | Method and device for forwarding metrical information of adjacent cells | |
| US9178671B2 (en) | User equipment, method for determining resource, method for reporting resource, and system for distributing resource | |
| CN101594274B (en) | Initial access method and transmission method of initial access signaling | |
| CN101945401A (en) | System and method for preventing terminal measuring and scheduling conflict | |
| KR20080080803A (en) | Handoff Method and System in Mobile Communication System | |
| CN115211170A (en) | System and method for sidelink configuration | |
| US20120039306A1 (en) | Radio communication system, radio base station, and radio communication method | |
| CN102202336B (en) | System and method for configuring shared-channel neighbour cell of high speed uplink packet access in multi-carrier system | |
| JP2010183602A (en) | Mobile station, base station, communication system, and communicating method | |
| WO2008096317A1 (en) | System and method for providing dedicated system frame number (sfn) transmission in handover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20190709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |