CN102480754B - Method, system and device for determining SNPL (Serving and Neighbor Cell Pathloss) - Google Patents

Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, system and device for determining SNPL (Serving and Neighbor Cell Pathloss) so as to solve the problems existing in the prior art that when a terminal calculates the SNPL, a measured channel is of a P-CCPCH (Primary Common Control Physical Channel) channel which has a constant transmitting power, the SNPL only can reflect the distance from the terminal to a base station, thereby causing lower utilization rate of system resources and the loss of throughput per hour when a network side carries out ROL (Repeated Optical Link) control according to the SNPL. The method provided by the embodiment of the invention comprises the following steps: the network side is used for determining a transmitting power value of a SNPL measuring reference channel; the network side transmits a reference signal to the terminal through the corresponding SNPL measuring reference channel according to the transmitting power value, and is used for indicating a receiving power value to which the terminal measurement correspond and determining the SNPL according to the measured receiving power value. According to the method provided by the embodiment of the invention, the utilization rate of the system resources can be increased, and the loss of throughput per hour is reduced.

Description

Method, system and the equipment of a kind of definite SNPL

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment of determining SNPL (Serving and Neighbour Cell Pathloss, Serving cell and adjacent cell path loss).

Background technology

TD-SCDMA (Time Division Synchronized Code Division Multiple Access, TD SDMA) HSUPA (High Speed Uplink Packet Access, high speed uplink bag access) technology is a kind of transmission mechanism of up enhancing, with respect to RNC (Radio Network Controller before, radio network controller) mode of dedicated physical channels allocated, realize the dynamic dispatching of base station and sharing of physical resource, thereby promoted up efficiency of transmission.

As shown in Figure 1, the scheduled transmission flow process of HSUPA comprises:

Step 101, UE (terminal) send the dispatch request that contains SI (Scheduling Information, schedule information), for apply for scheduling resource to base station.SI can be carried on E-RUCCH (E-DCH Random access Uplink Control Channel, E-DCH accesses ascending control channel at random; E-DCH:Enhanced Dedicated Transport Channel, strengthens shape dedicated transmission channel) upper, also can pass through E-PUCH (E-DCH Physical Uplink Channel, E-DCH physical uplink channel) and carry.

Step 102, Node B (base station) carry out scheduling of resource according to the dispatch request information of receiving, and in the upper resource license information that sends of E-AGCH (E-DCH Absolute Grant Channel, E-DCH absolute grant channel).

Step 103, UE are according to the resource scheduling information of receiving, strengthening transformat combination (E-TFC) selects, select suitable TBS (Transport Block Size, transmission block size) and modulation system, encode afterwards, modulate, on E-PUCH, send uplink strengthening data;

After step 104, Node B receive E-PUCH, the processing of decoding, according to CRC (Cyclic Redundancy Check, cyclic redundancy check (CRC)) obtain ACK/NACK information, coding after be mapped to E-HICH (E-DCH HARQ acknowledge Indicator Channel, E-DCH HARQ just answers indicating channel; HARQ:Hybrid Automatic Repeat Request, mixed automatic repeat request) on feed back to this UE.

Like this, UE has just completed the data transmission of a scheduled transmission process.

Wherein, the SI information that UE reports to network is made up of 3 partial contents, as shown in table 1:

Table 1

SNPL: thus help base station to estimate degree distribution power and the code channel resource of the presence of intercell interference of each UE generation.

UE power residue (UPH, UE Power Headroom): represent the power difference of UE maximum transmit power with equal the 0 UE transmitted power calculating as β e compared with.

Buffer information, comprising: highest priority logical channel (HLID, Highest priority Logical Channel); Whole E-DCH Buffer state (TEBS, Total E-DCH Buffer Status); Highest priority logical channel Buffer state (HLB S, Highest priority Logical channel Buffer Status).

Wherein, SNPL is calculated according to the configuration information of network side and measurement result by terminal.SNPL needs the adjacent cell of considering to comprise all homogeneous-frequency adjacent-domains and part alien frequencies adjacent area in calculating, the main carrier of these alien frequencies adjacent areas is different from the work carrier wave of UE, but has auxiliary carrier wave identical with the work carrier wave of UE.

Example is as shown in table 2, and terminal works is upper at the auxiliary carrier wave 1 (frequency F8) of community C1, has neighbor cell C2/C3/C4 around, and their frequency planning is as shown in table 1.So, network can be in the information configuration of measuring control message Zhong Jiang community C2/C3/C4 to terminal.Wherein, C2 is as homogeneous-frequency adjacent-domain, C3/C4 is as alien frequencies adjacent area, and because the auxiliary carrier wave 2 in C3 is identical with the work carrier wave of terminal, in the different frequency cell information list in the measurement control message that network sends, corresponding IE " Intra-Secondary Frequency Indicator (with auxiliary carrier identification frequently) " can be set to TRUE while configuring C3 and represent in C3, there be the auxiliary frequency identical with the working frequency points of terminal.Otherwise because C4 does not comprise the frequency identical with terminal works carrier wave, IE " Intra-Secondary Frequency Indicator " is FALSE.Terminal, in the time that SNPL calculates, need to be considered the path loss measurement result of C2/C3, and does not need to consider the measurement result of C4.

	C1	C2	C3	C4
					Main carrier	F7	F8	F9	F9
Auxiliary carrier wave 1	F8	F9	F7	F7
					Auxiliary carrier wave 2	F9	F7	F8	F6

Table 2 subdistrict frequency point planning example

Terminal reports SNPL assistant base station side to carry out ROT (thermal noise lifting) control, the interference level of control terminal to adjacent cell to network at present.And the channel of measuring when at present terminal is calculated the path loss of SNPL is P-CCPCH channel, in order to ensure the covering of broadcast singal and the function such as access and switching of terminal, the transmitting power of P-CCPCH channel is constant, SNPL can only reflect the distance of terminal apart from base station, while there will be in this case NodeB to dispatch UE transfer of data according to definite SNPL, cannot effectively carry out ROT control, cause the loss of sector data throughput.

In sum, the channel of measuring when at present terminal is calculated the path loss of SNPL is P-CCPCH channel, the transmitting power of this channel is constant, so SNPL can only reflect the distance of terminal apart from base station, thereby while there will be network side to carry out ROT control according to SNPL, cause resource utilization ratio lower, cause the loss of throughput.

Summary of the invention

The embodiment of the present invention provides method, system and the equipment of a kind of definite SNPL, be P-CCPCH channel in order to solve the channel of measuring when the terminal that exists in prior art is calculated the path loss of SNPL, the transmitting power of this channel is constant, so SNPL can only reflect the distance of terminal apart from base station, thereby while there will be network side to carry out ROT control according to SNPL, cause resource utilization ratio lower, cause the problem of the loss of throughput.

The method of a kind of definite Serving cell that the embodiment of the present invention provides and adjacent cell path loss SNPL, comprising:

Network side is determined the transmission power level of SNPL witness mark channel;

Described network side, according to transmission power level, sends reference signal by corresponding SNPL witness mark channel to terminal, is used to indicate terminal and measures corresponding received power value, determines SNPL according to the received power value of measuring.

The another kind that the embodiment of the present invention provides is determined the method for SNPL, comprising:

SNPL witness mark channel in the community that terminal is calculated by each participation SNPL respectively, receives reference signal, and measures received power value;

Described terminal, according to the received power value of measuring, is determined SNPL.

The equipment of a kind of definite SNPL that the embodiment of the present invention provides, comprising:

Transmitting power determination module, for determining the transmission power level of SNPL witness mark channel;

Sending module, for according to transmission power level, sends reference signal by corresponding SNPL witness mark channel to terminal, is used to indicate terminal and measures corresponding received power value, determines SNPL according to the received power value of measuring.

The another kind that the embodiment of the present invention provides is determined the equipment of SNPL, comprising:

Measurement module, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value;

SNPL determination module, for according to the received power value of measuring, determines SNPL.

The system of a kind of definite SNPL that the embodiment of the present invention provides, comprising:

Network equipment, for determining the transmission power level of SNPL witness mark channel, according to transmission power level, sends reference signal by corresponding SNPL witness mark channel;

Terminal, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value, according to the received power value of measuring, determines SNPL.

Because network side can be according to definite transmitting power, on SNPL witness mark channel, send reference signal, terminal is determined SNPL according to the received power of measuring on SNPL witness mark channel, thereby while making network side carry out ROT control according to SNPL, can improve the utilance of system resource, reduce the loss of throughput.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of HSUPA scheduled transmission in background technology;

Fig. 2 is the system configuration schematic diagram that the embodiment of the present invention is determined SNPL;

Fig. 3 is the structural representation of embodiment of the present invention network equipment;

Fig. 4 is the structural representation of embodiment of the present invention terminal;

Fig. 5 is the method flow schematic diagram that embodiment of the present invention network side notification terminal is determined SNPL;

Fig. 6 is the method flow schematic diagram that embodiment of the present invention end side is determined SNPL;

Fig. 7 is embodiment of the present invention the first SNPL witness mark channel schematic diagram;

Fig. 8 is embodiment of the present invention the first SNPL witness mark channel schematic diagram.

Embodiment

Embodiment of the present invention network side is according to the transmission power level of definite SNPL witness mark channel, send reference signal by corresponding SNPL witness mark channel to terminal, SNPL witness mark channel measurement received power value in the community that terminal is calculated by each participation SNPL respectively, according to the received power value of measuring, determine SNPL.Because network side can be according to definite transmitting power, on SNPL witness mark channel, send reference signal, terminal is determined SNPL according to the received power of measuring on SNPL witness mark channel, thereby while making network side carry out ROT control according to SNPL, can improve the utilance of system resource.

In declarative procedure below, first implement to describe from the cooperation of network side and end side, finally describe from the enforcement of network side and end side respectively, but this does not also mean that the two must coordinate enforcement, in fact, separate while implementing when network side and end side, also solved respectively in network side, the existing problem of end side, when just the two is combined with, can obtain better technique effect.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

As shown in Figure 2, the embodiment of the present invention determines that the system of SNPL comprises: network equipment 10 and terminal 20.

Network equipment 10, for determining the transmission power level of SNPL witness mark channel, according to transmission power level, sends reference signal by corresponding SNPL witness mark channel.

Terminal 20, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value, according to the received power value of measuring, determines SNPL.

Wherein, network equipment 10 is first determined measured parameter value, then determines reference power value according to measured parameter value.

Measured parameter value can be determined by out-hole run result or schedule information, informing network side apparatus 10 after also can being determined by RNC.

Measured parameter value is the numerical value that represents estate performance, such as representing the numerical value of cell load, represents the numerical value of area interference etc.

If represent the numerical value of cell load, measured parameter value can be: number of users, user's Mean Speed, RTWP(Received Total Wide band Power, received bandwidth total power) etc.

If represent the numerical value of area interference, measured parameter value can be: time slot ISCP(Interference Signal Code Power, Interference Signal Code Power) etc.

Wherein, measured parameter value is further divided into again the measured parameter value of carrier wave in the measured parameter value of community and community.

If measured parameter value is the measured parameter value of community, network equipment 10 is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to reference power value.

Such as community is single-carrier cell, network equipment 10 is measured on this carrier wave, determines measured parameter value, and measured parameter value using the measured parameter value obtaining as this community.

Accordingly, after network equipment 10 is determined transmission power level according to reference power value corresponding to the measured parameter value of community, according to definite transmission power level, in the carrier wave of Gai community, SNPL witness mark channel sends reference signal.

Such as community is multi-carrier district, network equipment 10 can be measured on each carrier wave, determine the measured parameter value that each carrier wave is corresponding, then using a kind of measured parameter value as this community in the mean value of measured parameter value, maximum, minimum value and all measured parameter value sums.

Accordingly, after network equipment 10 is determined transmission power level according to reference power value corresponding to the measured parameter value of community, on each carrier wave, send SNPL witness mark channel with identical transmission power level, or only on a carrier wave therein with definite transmitting power transmission SNPL witness mark channel.

Suppose that there are three carrier wave A, B and C in community 1, the measured parameter value that carrier wave A is corresponding is A1, and the measured parameter value that carrier wave B is corresponding is B1, and the measured parameter value that carrier wave C is corresponding is C1.Determine that according to A1, B1 and C1 the measured parameter value of community is Z, determine that according to Z the transmission power level of community is X, network equipment 10 adopts respectively X to send SNPL witness mark channel on carrier wave A, B and C, or only at a carrier wave, the upper X of employing of for example A sends SNPL witness mark channel.

If measured parameter value is the measured parameter value of carrier wave, network equipment is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to reference power value.

Such as community is multi-carrier district, network equipment 10 can be measured on each carrier wave, determines the measured parameter value that each carrier wave is corresponding.

Accordingly, after network equipment 10 is determined transmission power level according to reference power value corresponding to measured parameter value corresponding to each carrier wave, on each carrier wave, send SNPL witness mark channel with transmission power level corresponding to this carrier wave.

Suppose that there are three carrier wave A, B and C in community 1, the measured parameter value that carrier wave A is corresponding is A1, and the measured parameter value that carrier wave B is corresponding is B1, and the measured parameter value that carrier wave C is corresponding is C1.Determine that according to A1 the reference power value of carrier wave A is A2, determine that according to B1 the reference power value of carrier wave B is B2, determine that according to C1 the reference power value of carrier wave C is C2, A3 according to the transmission power level of SNPL witness mark channel corresponding to the definite carrier wave A of A2, B3 according to the transmission power level of SNPL witness mark channel corresponding to the definite carrier wave A of B2, C3 according to the transmission power level of SNPL witness mark channel corresponding to the definite carrier wave A of C2, network equipment 10 adopts A3 to send reference signal on SNPL witness mark channel corresponding to carrier wave A, network equipment 10 adopts B3 to send reference signal on SNPL witness mark channel corresponding to carrier wave B, network equipment 10 adopts C3 to send reference signal on SNPL witness mark channel corresponding to carrier wave C.

In force, the SNPL witness mark channel that in community, each carrier wave is corresponding can concentrate on a carrier wave in community; The SNPL witness mark channel that in community, each carrier wave is corresponding can also be respectively on carrier wave separately, and for a carrier wave, the SNPL witness mark channel that in community, this carrier wave is corresponding is on this carrier wave.Such as carrier wave A and B, the SNPL witness mark channel that the SNPL witness mark channel that carrier wave A is corresponding and carrier wave B are corresponding can be all on carrier wave A; Can also carrier wave A corresponding SNPL witness mark channel is on carrier wave A, and SNPL witness mark channel corresponding to carrier wave B is on carrier wave B.

Wherein, reference power value can be reference power value or power difference.

If reference power value is reference power value, network equipment 10 is using reference power value as transmission power level.

Accordingly, in the definite Serving cell of terminal 20, the received power value of SNPL witness mark channel in the received power value of SNPL witness mark channel and each adjacent cell, determines SNPL according to definite received power value.

Concrete, terminal 20 can be determined the one in the received power sum of mean value, maximum, minimum value and all adjacent cells of the received power of SNPL witness mark channel in each adjacent cell, then use the received power value of SNPL witness mark channel in Serving cell divided by definite received power value, thereby obtain SNPL.

Specifically can determine SNPL once a kind of formula in～formula four according to formula.

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\mathrm{ave}}{R}_n}..............$ Formula one.

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\max }{R}_n}..............$ Formula two.

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\min }{R}_n}..............$ Formula three.

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\overset{N}{\mathrm{\Σ}}}{R}_n}..............$ Formula four.

Wherein, Rserv is the received power of SNPL witness mark channel in Serving cell, and Rn is the received power of SNPL witness mark channel in adjacent cell n.

Concrete which kind of formula that adopts can be made an appointment in agreement, also can be consulted by network equipment 10 and terminal 20, can also be by network equipment 10 notification terminals 20.

If reference power value is power difference, network equipment 10, according to the performance number of power difference and reference channel, is determined transmission power level.

Concrete, network equipment 10 can be using the performance number sum of power difference and reference channel as transmission power level; Network equipment 10 can also be using the difference of the performance number of reference channel and power difference as transmission power level.

Accordingly, terminal 20 can be determined according to the received power value of SNPL witness mark channel in each community of the performance number of reference channel and measurement the circuit loss value of each community, and according to the circuit loss value of each community of determining, determines SNPL.

Concrete, after terminal 20 has been determined the received power value of each community, respectively the received power value of SNPL witness mark channel in each community and the performance number of reference channel are done to poor taking absolute value, the value obtaining is as the equivalent circuit loss value of each community, then according to formula five or formula six, determine SNPL.

$\mathrm{\Φ}=\frac{1}{\underset{n=1}{\overset{N}{\mathrm{\Σ}}}{L}_{\mathrm{serv}}/L_n}............$ Formula five.

$\mathrm{\Φ}=\frac{\underset{n=1..N}{\min }\left(L_n\right)}{L_{\mathrm{serv}}}............$ Formula six.

Wherein, Φ is SNPL, L _servfor the path loss measurement result of Serving cell, L _nfor the path loss measurement result of adjacent cell n.

Concrete which kind of formula that adopts can be made an appointment in agreement, also can be consulted by network equipment 10 and terminal 20, can also be by network equipment 10 notification terminals 20.

Such as You Liangge community A and B, in the A of community, the received power value of SNPL witness mark channel is A1, the performance number of reference channel is C, in the B of community, the received power value of SNPL witness mark channel is B1, the performance number of reference channel is D, use | the value that A1-C| obtains is as the circuit loss value of community A, uses | and the value that D-B1| obtains is as the circuit loss value of community B, brings the circuit loss value of community A and community B into formula five or formula six just obtains SNPL.

Reference channel can be down physical channel arbitrarily.Preferably reference channel is P-CCPCH.Because the transmitting power of P-CCPCH channel is constant, and network can be by the transmitting power notification terminal of P-CCPCH channel.The power of other down channel is generally variable, is determined in real time by base station side, and terminal does not have prior information.

Wherein, network equipment 10 can be determined according to SNPL parameter information the position of the SNPL witness mark channel in community; SNPL parameter information can specify in advance in agreement, also can be notified by RNC; SNPL parameter information includes but not limited to one or more in following message:

Frequency, subframe, time slot and code channel resource.

In force, terminal 20 is determined the position of the SNPL witness mark channel in community according to SNPL parameter information.The SNPL witness mark channel that terminal 20 is used can specify in advance in agreement, also can be notified by network equipment 10 or RNC.

Wherein, network equipment 10 can be determined transmission power level in real time, sends reference signal in each subframe according to definite transmission power level; Network equipment 10 also can carry out smoothly measured parameter value, and the result after utilization is level and smooth is determined transmission power level; Can also be by RNC by periodically informing network side apparatus 10 of measured parameter value, network equipment 10 is determined the transmitting power of SNPL witness mark channel according to the result of RNC notice.

Network equipment 10 is being determined after SNPL witness mark channel corresponding to community, Midamble (centre) code part and the data division of can Gai community corresponding SNPL witness mark channel, send reference signal according to corresponding transmission power level to terminal, specifically can be referring to Fig. 7.

Such as arranging the code channel of fixing the 3rd and the 4th SF16 that takies continuously main carrier time slot 0 of SNPL witness mark channel.The data division of this channel can be filled or fill data arbitrarily by network equipment 10 according to predefined Data Styles.Further, the SNPL witness mark channel of the above-mentioned resource of main carrier can adopt time-multiplexed mode respectively as the SNPL witness mark channel of different carrier.

Accordingly, the signal of the 3rd and the 4th SF16 code channel of terminal 20 receiving slots 0, and measure received power.

Network equipment 10 determining after SNPL witness mark channel corresponding to community, and the Midamble code part of can Gai community corresponding SNPL witness mark channel, sends reference signal according to corresponding transmission power level to terminal, specifically can be referring to Fig. 8.

Such as only transmitting in midamble code part, data division is transmitted signal not.The cyclic shift result of the basic Midamble code that the midamble part of reference signal can Wei Ben community be used, the cyclic shift of another the basic Midamble code outside the basic midamble code also can Shi Zhe community using.The information of the concrete basic midamble code using and cyclic shift can specify or is pre-configured to network equipment 10 and terminal 20 in agreement.

Certainly,, in the time that midamble code part and data division transmit, midamble code part also can adopt aforesaid way transmitted signal.

The network equipment 10 of the embodiment of the present invention can be base station (such as macro base station, evolution base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.

Based on same inventive concept, the method of network equipment, terminal and definite SNPL is also provided in the embodiment of the present invention, because the principle that these equipment are dealt with problems with method is similar to the system of definite SNPL, therefore the enforcement of these equipment and method can be referring to the enforcement of system, repeats part and repeat no more.

As shown in Figure 3, the network equipment of the embodiment of the present invention comprises: transmitting power determination module 100 and sending module 110.

Transmitting power determination module 100, for determining the transmission power level of SNPL witness mark channel.

Sending module 110, for according to transmission power level, sends reference signal by corresponding SNPL witness mark channel to terminal, is used to indicate terminal and measures corresponding received power value, determines SNPL according to the received power value of measuring.

Wherein, transmitting power determination module 100 can be according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to reference power value.

Transmitting power determination module 100 can also be according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to reference power value.

On the carrier wave of the SNPL witness mark channel that in community, each carrier wave is corresponding in community; Or

For a carrier wave, the SNPL witness mark channel that in community, this carrier wave is corresponding is on this carrier wave.

In the time that reference power value is reference power value, transmitting power determination module 100 is using reference power value as transmission power level;

In the time that reference power value is power difference, transmitting power determination module 100, according to the performance number of power difference and reference channel, is determined transmission power level.

Sending module 110, in the Midamble code part of SNPL witness mark channel, sends reference signal according to corresponding transmission power level to terminal; Or at Midamble code part and the data division of SNPL witness mark channel, send reference signal according to corresponding transmission power level to terminal.

Wherein, sending module 110 can also send to terminal the SNPL parameter information of the SNPL witness mark channel of each community.

As shown in Figure 4, the terminal of the embodiment of the present invention comprises: measurement module 200 and SNPL determination module 210.

Measurement module 200, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value.

SNPL determination module 210, for the received power value of measuring according to measurement module 200, determines SNPL.

Wherein, SNPL determination module 210 is determined the circuit loss value of each community according to the received power value of each SNPL witness mark channel of the performance number of reference channel and measurement, and according to the circuit loss value of each community of determining, determines SNPL.

In the definite Serving cell of SNPL determination module 210, the received power value of SNPL witness mark channel in the received power value of SNPL witness mark channel and each adjacent cell, determines SNPL according to definite received power value.

Wherein, measurement module 200 is according to SNPL parameter information, determines the SNPL witness mark channel in the community that each participation SNPL calculates.

As shown in Figure 5, embodiment of the present invention network side notification terminal determines that the method for SNPL comprises the following steps:

Step 501, network side are determined the transmission power level of SNPL witness mark channel.

Step 502, network side, according to transmission power level, send reference signal by corresponding SNPL witness mark channel to terminal, are used to indicate terminal and measure corresponding received power value, determine SNPL according to the received power value of measuring.

In step 501, network side is first determined the measured parameter value of community, then determines the reference power value of each community according to measured parameter value.

Wherein, measured parameter value is further divided into again the measured parameter value of carrier wave in the measured parameter value of community and community.

If measured parameter value is the measured parameter value of community, in step 501, network side is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to reference power value.

In step 502, after network side is determined transmission power level according to reference power value corresponding to the measured parameter value of community, determine SNPL witness mark channel in the carrier wave of this community, and according to definite transmission power level, send reference signal.

Such as community is single-carrier cell,, in step 501, network side is measured on this carrier wave, determines measured parameter value, and measured parameter value using the measured parameter value obtaining as this community; In step 502, network side is determined SNPL witness mark channel in the carrier wave of this community, and according to definite transmission power level, sends reference signal.

Such as community is multi-carrier district, in step 501, network side can be measured on each carrier wave, determine the measured parameter value that each carrier wave is corresponding, then using a kind of measured parameter value as this community in the mean value of measured parameter value, maximum, minimum value and all measured parameter value sums; In step 502, network side is determined the SNPL witness mark channel that each carrier wave of this community is corresponding, and sends reference signal with identical transmission power level on SNPL witness mark letter corresponding to each carrier wave.

If measured parameter value is the measured parameter value of carrier wave, in step 501, network equipment is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to reference power value.

Such as community is multi-carrier district,, in step 501, network side can be measured on each carrier wave, determines the measured parameter value that each carrier wave is corresponding; In step 502, after network equipment 10 is determined transmission power level according to reference power value corresponding to measured parameter value corresponding to each carrier wave, determine the SNPL witness mark channel corresponding to each carrier wave of this community, and send reference signal with transmission power level corresponding to this carrier wave on each carrier wave.

In force, the SNPL witness mark channel that in community, each carrier wave is corresponding can concentrate on a carrier wave in community; The SNPL witness mark channel that in community, each carrier wave is corresponding can also be respectively on carrier wave separately, and for a carrier wave, the SNPL witness mark channel that in community, this carrier wave is corresponding is on this carrier wave.

Wherein, reference power value can be reference power value or power difference.

If reference power value is reference power value, in step 501, network side is using reference power value as transmission power level.

If reference power value is power difference, in step 501, network side, according to the performance number of power difference and reference channel, is determined transmission power level.

Concrete, network side can be using the performance number sum of power difference and reference channel as transmission power level; Network side can also be using the difference of the performance number of reference channel and power difference as transmission power level.

Reference channel can be down physical channel arbitrarily.Preferably reference channel is P-CCPCH.

Wherein, wherein, network side can be determined according to SNPL parameter information the position of the SNPL witness mark channel in community; SNPL parameter information can specify in advance in agreement, also can be notified by RNC.

Further, network side can be notified SNPL parameter information to terminal.

Wherein, network side can be determined transmission power level constantly, sends reference signal in each subframe according to definite transmission power level; Network side also can carry out smoothly measured parameter value, and the result after utilization is level and smooth is determined transmission power level.

In step 502, network side is being determined after SNPL witness mark channel corresponding to community, Midamble code part and the data division of can Gai community corresponding SNPL witness mark channel, send reference signal according to corresponding transmission power level to terminal, specifically can be referring to Fig. 7.

Network side determining after SNPL witness mark channel corresponding to community, and the Midamble code part of can Gai community corresponding SNPL witness mark channel, sends reference signal according to corresponding transmission power level to terminal, specifically can be referring to Fig. 8.

As shown in Figure 6, embodiment of the present invention end side determines that the method for SNPL comprises the following steps:

SNPL witness mark channel in the community that step 601, terminal are calculated by each participation SNPL respectively, receives reference signal, and measures received power value.

Step 602, terminal, according to the received power value of measuring, are determined SNPL.

Wherein, the transmitting power of network side transmission reference signal is determined according to reference power value.

If reference power value is reference power value, in step 601, terminal is determined the received power value of SNPL witness mark channel in the received power value of SNPL witness mark channel in Serving cell and each adjacent cell; In step 602, terminal is determined SNPL according to definite received power value.

Concrete, terminal can be determined the one in the received power sum of mean value, maximum, minimum value and all adjacent cells of the received power of SNPL witness mark channel in each adjacent cell, then use the received power value of SNPL witness mark channel in Serving cell divided by definite received power value, thereby obtain SNPL.

Specifically can determine SNPL once a kind of formula in～formula four according to formula.

If reference power value is power difference, in step 602, terminal is determined the circuit loss value of each community according to the received power value of SNPL witness mark channel in each community of the performance number of reference channel and measurement, and according to the circuit loss value of each community of determining, determines SNPL.

Concrete, after terminal has been determined the received power value of each community, respectively the received power value of SNPL witness mark channel in each community and the performance number of reference channel are done to poor taking absolute value, the value obtaining is as the equivalent circuit loss value of each community, then according to formula five or formula six, determine SNPL.

Reference channel can be down physical channel arbitrarily.Preferably reference channel is P-CCPCH.

Wherein, the SNPL witness mark channel of each community can specify in advance in agreement, also can be notified by network side.If network side notice, in step 601, the SNPL parameter information of each community that terminal sends according to network side, determines the SNPL witness mark channel in the community that each participation SNPL calculates.

After step 602, terminal can report network side by SNPL, carries out ROT control for network side according to SNPL.

Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for a new definite SNPL, first perform step 501 and 502, then perform step 601 and 602.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (19)

1. a method of definite Serving cell and adjacent cell path loss SNPL, is characterized in that, the method comprises:

Network side is determined the transmission power level of SNPL witness mark channel;

Described network side, according to transmission power level, sends reference signal by corresponding SNPL witness mark channel to terminal, is used to indicate terminal and measures corresponding received power value, determines SNPL according to the received power value of measuring;

Wherein, described network side determines that transmission power level comprises:

Described network side is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to described reference power value; Or

Described network side is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to described reference power value.

2. the method for claim 1, it is characterized in that, if described network side is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to described reference power value,

On the carrier wave of the SNPL witness mark channel that in described community, each carrier wave is corresponding in community; Or

The SNPL witness mark channel that in described community, each carrier wave is corresponding is respectively on carrier wave separately.

3. method as claimed in claim 1 or 2, is characterized in that, described network side determines that transmission power level comprises:

Described reference power value is reference power value, and described network side is using reference power value as transmission power level;

Described reference power value is power difference, and described network side, according to the performance number of power difference and reference channel, is determined transmission power level.

4. method as claimed in claim 3, is characterized in that, described SNPL witness mark channel is physical channel;

Described reference channel is Common Control Physical Channel P-CCPCH.

5. the method for claim 1, is characterized in that, described network side sends reference signal and comprises:

Described network side, in the middle Midamble code part of SNPL witness mark channel, sends reference signal according to corresponding transmission power level to terminal.

6. the method for claim 1, is characterized in that, described network side sends reference signal and comprises:

Described network side, at Midamble code part and the data division of SNPL witness mark channel, sends reference signal according to corresponding transmission power level to terminal.

7. as the method for claim 1,2,5,6 as described in arbitrary, it is characterized in that, the method also comprises:

Described network side sends the SNPL parameter information of the SNPL witness mark channel of each community to terminal.

8. a method of definite SNPL, is characterized in that, the method comprises:

SNPL witness mark channel in the community that terminal is calculated by each participation SNPL respectively, receives reference signal, and measures received power value;

Described terminal, according to the received power value of measuring, is determined SNPL;

Described terminal determines that SNPL comprises:

The received power value of SNPL witness mark channel in each community and the performance number of reference channel are done poor taking absolute value by described terminal, and the value obtaining is as the equivalent circuit loss value of each community, then according to a definite SNPL in following formula:

$\mathrm{\Φ}=\frac{1}{\underset{n=1}{\overset{N}{\mathrm{\Σ}}}{L}_{\mathrm{serv}}/L_n};$

$\mathrm{\Φ}=\frac{\underset{n=1..N}{\min }\left(L_n\right)}{L_{\mathrm{serv}}};$

Wherein, Φ is definite SNPL, L _servfor the equivalent circuit loss value of Serving cell, L _nfor the equivalent circuit loss value of adjacent cell n; Or

Described terminal is according to a definite SNPL in following formula:

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\mathrm{ave}}{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\max }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\min }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\overset{N}{\mathrm{\Σ}}}{R}_n};$

Wherein, Rserv is the received power value of SNPL witness mark channel in Serving cell, and Rn is the received power value of SNPL witness mark channel in adjacent cell n.

9. method as claimed in claim 8, is characterized in that, the method also comprises:

Described terminal is according to SNPL parameter information, determines the SNPL witness mark channel in the community that each participation SNPL calculates.

10. method as claimed in claim 9, is characterized in that, described SNPL parameter information be in agreement, specify or network side notice.

The equipment of 11. 1 kinds of definite SNPL, is characterized in that, this equipment comprises:

Transmitting power determination module, for determining the transmission power level of SNPL witness mark channel;

Sending module, for according to transmission power level, sends reference signal by corresponding SNPL witness mark channel to terminal, is used to indicate terminal and measures corresponding received power value, determines SNPL according to the received power value of measuring;

Wherein, described transmitting power determination module is used for:

According to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to described reference power value; Or

According to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to described reference power value.

12. equipment as claimed in claim 11, it is characterized in that, if described transmitting power determination module is according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to described reference power value;

On the carrier wave of the SNPL witness mark channel that in described community, each carrier wave is corresponding in community; Or

The SNPL witness mark channel that in described community, each carrier wave is corresponding is respectively on carrier wave separately.

13. equipment as described in claim 11 or 12, is characterized in that, described transmitting power determination module specifically for:

In the time that described reference power value is reference power value, using reference power value as transmission power level;

In the time that described reference power value is power difference, according to the performance number of power difference and reference channel, determine transmission power level.

14. equipment as claimed in claim 11, is characterized in that, described sending module specifically for:

In the Midamble code part of SNPL witness mark channel, send reference signal according to corresponding transmission power level to terminal.

15. equipment as claimed in claim 11, is characterized in that, described sending module specifically for:

At Midamble code part and the data division of SNPL witness mark channel, send reference signal according to corresponding transmission power level to terminal.

16. as the equipment of claim 11,12,14,15 as described in arbitrary, it is characterized in that, described sending module also for:

Send the SNPL parameter information of the SNPL witness mark channel of each community to terminal.

The equipment of 17. 1 kinds of definite SNPL, is characterized in that, this equipment comprises:

Measurement module, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value;

SNPL determination module, for according to the received power value of measuring, determines SNPL;

Described SNPL determination module specifically for:

The received power value of SNPL witness mark channel in each community and the performance number of reference channel are done to poor taking absolute value, and the value obtaining is as the equivalent circuit loss value of each community, then according to a definite SNPL in following formula:

$\mathrm{\Φ}=\frac{1}{\underset{n=1}{\overset{N}{\mathrm{\Σ}}}{L}_{\mathrm{serv}}/L_n};$

$\mathrm{\Φ}=\frac{\underset{n=1..N}{\min }\left(L_n\right)}{L_{\mathrm{serv}}};$

Wherein, Φ is definite SNPL, L _servfor the equivalent circuit loss value of Serving cell, L _nfor the equivalent circuit loss value of adjacent cell n; Or

A definite SNPL according in following formula:

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\mathrm{ave}}{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\max }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\min }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\overset{N}{\mathrm{\Σ}}}{R}_n};$

Wherein, Rserv is the received power value of SNPL witness mark channel in Serving cell, and Rn is the received power value of SNPL witness mark channel in adjacent cell n.

18. equipment as claimed in claim 17, is characterized in that, described measurement module also for:

According to SNPL parameter information, determine the SNPL witness mark channel in the community that each participation SNPL calculates.

The system of 19. 1 kinds of definite SNPL, is characterized in that, this system comprises:

Network equipment, for determining the transmission power level of SNPL witness mark channel, according to transmission power level, sends reference signal by corresponding SNPL witness mark channel;

Terminal, for the community SNPL witness mark channel calculating by each participation SNPL respectively, receives reference signal, and measures received power value, according to the received power value of measuring, determines SNPL;

Wherein, described network equipment specifically for: according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of community, and determine the transmission power level of SNPL witness mark channel corresponding to community according to described reference power value; Or according to the corresponding relation of predefined measured parameter value scope and reference power value, determine the affiliated reference power value corresponding to measured parameter value scope of measured parameter value of each carrier wave in community, and determine the transmission power level of the SNPL witness mark channel that in community, each carrier wave is corresponding according to described reference power value;

Described terminal specifically for:

The received power value of SNPL witness mark channel in each community and the performance number of reference channel are done to poor taking absolute value, and the value obtaining is as the equivalent circuit loss value of each community, then according to a definite SNPL in following formula:

$\mathrm{\Φ}=\frac{1}{\underset{n=1}{\overset{N}{\mathrm{\Σ}}}{L}_{\mathrm{serv}}/L_n};$

$\mathrm{\Φ}=\frac{\underset{n=1..N}{\min }\left(L_n\right)}{L_{\mathrm{serv}}};$

Wherein, Φ is definite SNPL, L _servfor the equivalent circuit loss value of Serving cell, L _nfor the equivalent circuit loss value of adjacent cell n; Or

A definite SNPL according in following formula:

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\mathrm{ave}}{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\max }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\min }{R}_n};$

$\mathrm{\Φ}=\frac{R_{\mathrm{serv}}}{\underset{n=1..N}{\overset{N}{\mathrm{\Σ}}}{R}_n};$

Wherein, Rserv is the received power value of SNPL witness mark channel in Serving cell, and Rn is the received power value of SNPL witness mark channel in adjacent cell n.