CN101841918A - Bandwidth resource allocation method and device for measuring reference signal - Google Patents
Bandwidth resource allocation method and device for measuring reference signal Download PDFInfo
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Abstract
The embodiment of the invention provides bandwidth resource allocation method and device for a measuring reference signal. The method comprises the following steps of: determining a corresponding frequency domain layer of the frequency domain position of the measuring reference signal in a cell SRS (Shock Response Spectrum) bandwidth tree according to the transmission bandwidth of the measuring reference signal; searching a first idle node of which a status flag is idle and the frequency hopping bandwidth expressed by a frequency hopping flag is the maximum bandwidth in the cell SRS or searching a first idle node of which a status flag is idle and the frequency hopping bandwidth expressed by a frequency hopping flag is consistent with the frequency hopping bandwidth of the measuring reference signal according to status flags and frequency hopping flags of various nodes in the frequency domain layer; and taking a bandwidth resource corresponding to the first idle node as the frequency domain position of the measuring reference signal and allocating the bandwidth resource for the measuring reference signal. The embodiment of the invention allocates the frequency domain position for a terminal SRS by utilizing the characteristics of the SRS bandwidth tree and improves the efficiency for allocating the frequency domain position for the terminal SRS.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of method for allocating bandwidth resources and device of measuring reference signals.
Background technology
At Long Term Evolution (Long Term Evolution, hereinafter to be referred as LTE) in the system, periodically send measuring reference signals (Sounding Reference Signal by terminal to the LTE base station, hereinafter to be referred as SRS), realize the measurement of uplink signal-channel quality between terminal and the LTE base station, for the running time-frequency resource dynamic dispatching of LTE system, power control etc. provide foundation.
According to the upstream bandwidth of sub-district, the LTE system supports multiple SRS band width configuration.The LTE base station is by the presently used SRS band width configuration of system message broadcast cell in the sub-district.(Radio Resource Control hereinafter to be referred as RRC) message informing terminal, also carries the frequency hopping bandwidth of promising each terminal configuration to the SRS transmission bandwidth of each terminal simultaneously in the RRC message by Radio Resource control by the LTE base station in the sub-district.The SRS transmission bandwidth of each terminal is a subclass in the SRS band width configuration of this sub-district.Transmission bandwidth represents how many bandwidth resources are terminal can take and send SRS to the base station; The frequency hopping bandwidth represents, terminal can be in much bandwidth resources scopes when the base station sends SRS frequency hopping.When the LTE base station is each terminal distribution SRS bandwidth resources, need from the SRS bandwidth resources piece of the current configuration in sub-district, to find out the bandwidth resources piece of a free time, and check whether those free blocks conflict mutually with the frequency hopping position of other terminal, then those free blocks are not distributed to terminal as the initial frequency domain position of terminal SRS if do not conflict.
With the 20M sub-district is example, and the LTE base station is by No. 3 SRS band width configuration of the current use of system message broadcast cell, and promptly the SRS bandwidth resources of cell configuration are 72RB (Resource Block, Resource Block).And the LTE base station is by certain terminal of RRC message informing, and the SRS transmission bandwidth that it uses is 12RB, and the frequency hopping bandwidth is 24RB.Simultaneously, the base station need be the initial frequency domain position of terminal distribution SRS in 72RB also.When being the initial frequency domain position of terminal distribution SRS, the LTE base station is done starting point with each 12RB multiple and is checked one by one whether 12 continuous RB are the free time thereafter in whole 72RB.If the continuous thereafter 12RB of certain 12RB multiple is all idle, whether the frequency hopping bandwidth that reexamines other terminal (in the 24RB scope of the frequency domain position of those terminals under this 12RB) also is 24RB.If then satisfy distributive condition, this 12RB is distributed to terminal, and in whole 72RB bandwidth with this 12RB state recording for taking.Under the optimal situation, promptly 1RB to 12RB is all idle among the 72RB, and above-mentioned distribution method also needs to travel through one by one 12 RB.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: when the LTE base station was the initial frequency domain position of terminal distribution SRS, owing to need travel through the SRS bandwidth resources piece of cell configuration one by one, allocative efficiency was lower.
Summary of the invention
The embodiment of the invention provides a kind of method for allocating bandwidth resources and device of measuring reference signals, when solving that the base station is the frequency domain position of terminal distribution SRS in the prior art, need travel through the defective of sub-district SRS bandwidth resources piece one by one, improve efficient for the initial frequency domain position of terminal distribution SRS.
The embodiment of the invention provides a kind of method for allocating bandwidth resources of measuring reference signals, comprising:
According to the transmission bandwidth of measuring reference signals, determine the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of described measuring reference signals;
According to the Status Flag of each node in the described frequency domain layer and the frequency hopping sign of each node, searching the frequency hopping bandwidth that Status Flag represents that free time and frequency hopping sign are represented is first idle node of the maximum bandwidth of sub-district SRS, or searches frequency hopping bandwidth that state representation free time and frequency hopping sign represent and corresponding to first idle node of frequency hopping bandwidth of described measuring reference signals;
With the frequency domain position of described first idle node corresponding bandwidth resource, distribute to described measuring reference signals as described measuring reference signals.
The embodiment of the invention provides a kind of bandwidth resource allocation device of measuring reference signals, comprising:
Frequency domain layer determination module is used for the transmission bandwidth according to measuring reference signals, determines the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of described measuring reference signals;
The frequency domain node is searched module, be used for according to the Status Flag of described each node of frequency domain layer and the frequency hopping sign of each node, searching the frequency hopping bandwidth that Status Flag represents that free time and frequency hopping sign are represented is first idle node of the maximum bandwidth of sub-district SRS, or searches frequency hopping bandwidth that state representation free time and frequency hopping sign represent and corresponding to first idle node of frequency hopping bandwidth of described measuring reference signals;
The frequency domain position distribution module is used for the frequency domain position of described first idle node corresponding bandwidth resource as described measuring reference signals distributed to described measuring reference signals.
The method for allocating bandwidth resources of the measuring reference signals that the embodiment of the invention provides and device are for each node in the SRS bandwidth tree of sub-district is provided with Status Flag and frequency hopping sign.Utilize the characteristics of SRS bandwidth tree, in the SRS bandwidth tree, search earlier the frequency domain layer of the frequency domain position correspondence of terminal SRS according to the transmission bandwidth of terminal SRS.Then, according to the Status Flag and the frequency hopping sign of each node, in this frequency domain layer, seek the node that first state free time and frequency hopping scope and the frequency hopping scope of terminal SRS are not conflicted.The pairing bandwidth resources of first node that satisfies condition as initial frequency domain position, are distributed to terminal SRS.Thereby overcome in the prior art, when distributing frequency domain position, need travel through the defective of sub-district SRS bandwidth resources piece one by one, improved the efficient of the frequency domain position of distributing terminals SRS for terminal SRS.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The method for allocating bandwidth resources flow chart of the measuring reference signals that Figure 1A provides for first embodiment of the invention;
A kind of SRS band width configuration schematic diagram that adopt the sub-district in the method for allocating bandwidth resources of the measuring reference signals that Figure 1B provides for first embodiment of the invention;
The structural representation of a kind of SRS bandwidth tree that adopt the sub-district in the method for allocating bandwidth resources of the measuring reference signals that Fig. 1 C provides for first embodiment of the invention;
The method for allocating bandwidth resources flow chart of the measuring reference signals that Fig. 2 provides for second embodiment of the invention;
The method for allocating bandwidth resources flow chart of the measuring reference signals that Fig. 3 A provides for third embodiment of the invention;
Distribute frequency hopping position flow chart in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 B provides for third embodiment of the invention;
Sub-district SRS bandwidth tree view behind recording status sign when transmission bandwidth is 12RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 C provides for third embodiment of the invention;
The view of sub-district SRS bandwidth tree behind record frequency hopping sign when transmission bandwidth is for 12RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 D provides for third embodiment of the invention;
The view of sub-district SRS bandwidth tree behind recording status sign when transmission bandwidth is 4RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 E provides for third embodiment of the invention;
The view of sub-district SRS bandwidth tree behind record frequency hopping sign when transmission bandwidth is for 4RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 F provides for third embodiment of the invention;
The bandwidth resource allocation apparatus structure schematic diagram of the measuring reference signals that Fig. 4 provides for fourth embodiment of the invention;
Fig. 5 A is provided for the present invention the 5th by the bandwidth resource allocation apparatus structure schematic diagram of the routine measuring reference signals that provides;
The structural representation of frequency hopping position distribution module in the bandwidth resource allocation device of the measuring reference signals that Fig. 5 B provides for fifth embodiment of the invention;
The bandwidth resource allocation apparatus structure schematic diagram of the measuring reference signals that Fig. 6 provides for sixth embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
In the LTE system, the bandwidth of SRS adopts the tree state structure to be configured.The corresponding tree of each SRS band width configuration.Table 1 has provided the spendable 8 kinds of SRS band width configuration in 20M sub-district, the corresponding SRS bandwidth tree of the delegation in the table 1.C
SRSExpression sub-district SRS band width configuration numbering; m
SRS, BIn the expression tree index be the SRS bandwidth of layer of B at the RB of frequency domain correspondence number, i.e. the transmission bandwidth of SRS, wherein B is 0,1,2,3; N
BIndex is that the node of the layer of B-1 is the number of the branch node that comprised in the layer of B, the i.e. number of child nodes at index in the expression tree; B
SRSBe expressed as the layer of SRS transmission bandwidth correspondence in tree of terminal configuration, the ground floor of the corresponding tree of B=0, also promptly top; m
SRS, 0Be the maximum SRS transmission bandwidth under the SRS band width configuration of a kind of sub-district; Index is a node of the layer of B, the frequency domain position of counterpart terminal SRS, and the transmission bandwidth of this terminal SRS is m
SRS, B
The SRS band width configuration of table 1 20M sub-district
3 bits are used in the LTE base station, a certain by in 8 kinds of configurations of the current use of system message broadcast cell.After sub-district SRS band width configuration was determined, the SRS transmission bandwidth that each terminal can dispose in the sub-district was a subclass under the SRS band width configuration of this sub-district, just 4 kinds of band width configuration a kind of in the sub-district SRS bandwidth configuration table corresponding row.The transmission bandwidth of 2 bits (level of expression transmission bandwidth correspondence in the SRS bandwidth tree of sub-district) notice terminal SRS is used in the LTE base station at the RRC configuration messages.For example, No. 3, the current use in 20M sub-district configuration, as shown in table 1, No. 3 configurations maximum bandwidth of sub-district SRS down are 72RB, the spendable SRS transmission bandwidth of terminal is a kind of among 72RB, 24RB, 12RB, the 4RB in the sub-district.If the transmission bandwidth of certain terminal SRS has been defined as 12RB (promptly in the sub-district, terminal can send the SRS signal to the base station with 12 continuous RB), then the LTE base station needs to find out 12 continuous idle RB from the 72RB bandwidth, as the initial frequency domain position of this terminal SRS, distributes to this terminal.Terminal sends SRS signal with these 12 RB to the base station at up channel.
In addition, the LTE base station in being handed down to the RRC message of UE also by 2BIT information HoppingBandwidth (value of Hopping Bandwidth represent the level of frequency hopping bandwidth correspondence in the SRS bandwidth tree of sub-district) the SRS frequency hopping bandwidth of configurating terminal.For example, the transmission bandwidth of terminal SRS is 12RB, the frequency hopping bandwidth is 24RB, if the initial frequency domain position that terminal SRS distributes is 1-12RB, if be the full bandwidth frequency hopping, then allow terminal respectively at 1-12RB, 13-24RB, on 25-36RB, 37-48RB, 49-60RB and the 61-72RB, send SRS to the base station; If be part bandwidth frequency hopping, then only allow terminal on 1-12RB and 13-24RB, send SRS to the base station.
If Hopping Bandwidth is more than or equal to the B of terminal
SRS(in the SRS bandwidth tree of sub-district, frequency hopping bandwidth place layer is greater than or equal to transmission bandwidth place layer), then terminal is carried out frequency hopping in Hopping Bandwidth designated bandwidth scope, otherwise frequency hopping not.Identical B
SRS(frequency domain position of those terminals SRS is at same B for all terminals in the bandwidth range
SRSIn, transmission bandwidth is smaller or equal to B
SRSCorresponding transmission bandwidth) must dispose identical Hopping Bandwidth, otherwise the phenomenon of frequency hopping location overlap can take place.That is to say that in the SRS bandwidth tree, for a node, the frequency hopping bandwidth of its all direct descendant's node correspondences is identical.
Therefore, the frequency hopping bandwidth of terminal SRS also need be considered in the base station when distributing initial frequency domain position for terminal SRS, preventing terminal after frequency hopping, clashes with the frequency domain position of other terminal.
It is to be noted: about method for the frequency hopping bandwidth of the transmission bandwidth of terminal distribution SRS and SRS, can be with reference to prior art.
The method for allocating bandwidth resources flow chart of the measuring reference signals that Figure 1A provides for first embodiment of the invention.The executive agent of present embodiment is the LTE base station, and the SRS bandwidth tree when present embodiment adopts No. 3 configurations with the 20M sub-district is an example, and the method for allocating bandwidth resources of embodiment of the invention measuring reference signals is described.The structural representation of a kind of SRS bandwidth tree that adopt the sub-district in the method for allocating bandwidth resources of the measuring reference signals that a kind of SRS band width configuration schematic diagram that adopt the sub-district in the method for allocating bandwidth resources of the measuring reference signals that Figure 1B provides for first embodiment of the invention, Fig. 1 C provide for first embodiment of the invention.No. 3 SRS band width configuration in the SRS band width configuration correspondence table 1 shown in Figure 1B, the SRS bandwidth tree of SRS band width configuration among the corresponding Figure 1B of the SRS bandwidth tree shown in Fig. 1 C.
Shown in Figure 1A, present embodiment comprises:
Step 11:, determine the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of SRS according to the transmission bandwidth of SRS;
One deck in the SRS bandwidth tree shown in Figure 1B is corresponding to the transmission bandwidth of the SRS shown in the delegation among Figure 1B; Node in each layer of SRS bandwidth tree, the frequency domain position of transmission bandwidth in the delegation among corresponding Figure 1B.For example, in Fig. 1 C, when the second layer represents that the transmission bandwidth of SRS is 12RB, the frequency domain position of SRS; In Fig. 1 C, a node in the second layer, when the transmission bandwidth of expression SRS is 12RB, the frequency domain position of SRS.
If the SRS transmission bandwidth of a terminal has been defined as 12RB, then shown in Figure 1B, the embodiment of the invention is according to the transmission bandwidth 12RB of this terminal SRS, determine the second layer (root node place layer be zero layer) of frequency domain position in the SRS bandwidth tree of this terminal SRS, this layer is called: the frequency domain layer of the frequency domain position of this terminal SRS in the SRS bandwidth tree of sub-district.
Therefore, the embodiment of the invention is utilized the characteristics of SRS bandwidth tree, by the SRS transmission bandwidth that is that terminal is determined, in the SRS bandwidth tree of sub-district, search the frequency domain layer of this transmission bandwidth correspondence after, determine in this layer that directly the frequency domain position of this terminal SRS gets final product.Do not need to travel through one by one sub-district SRS bandwidth resources piece.
Step 12: according to the Status Flag of each node in this frequency domain layer and the frequency hopping sign of each node, searching the frequency hopping bandwidth that state free time and frequency hopping sign represent is first idle node of the maximum bandwidth of sub-district SRS, or searches frequency hopping bandwidth that state free time and frequency hopping sign represent and corresponding to first idle node of frequency hopping bandwidth of SRS;
The embodiment of the invention is created two flag bits for each node during to sub-district SRS bandwidth tree modeling, is respectively Status Flag and frequency hopping sign.Wherein, Status Flag is represented, the state of node corresponding bandwidth resource, as: idle or take; Free time shows that the node corresponding bandwidth resource also do not distribute to terminal SRS, and the frequency domain position that takies expression node correspondence has been distributed to terminal SRS.
Wherein, the frequency hopping sign is represented, the frequency hopping bandwidth that the node corresponding bandwidth resource is supported, the hierachy number of correspondence in the SRS bandwidth tree of sub-district.During initialization, the frequency hopping sign of each node is zero (root node respective layer number of times is the 0th layer, is the maximum bandwidth of sub-district SRS according to corresponding bandwidth resource), and to represent: each node corresponding bandwidth resource is supported full bandwidth frequency hopping when initial condition.Shown in Figure 1B, the frequency hopping bandwidth of terminal SRS is 24RB, and hierachy number corresponding in the SRS bandwidth tree of sub-district is a ground floor.If node E corresponding bandwidth resource is distributed to this terminal SRS, as its initial frequency domain position, then the frequency hopping sign of node E can be revised as 1, its frequency hopping bandwidth of terminal SRS that expression takies this node corresponding bandwidth resource is 24RB, and this SRS only goes up frequency hopping at 1-12RB (node E) and 13-24RB (node F).
Search first node that satisfies following two conditions simultaneously in the 3rd layer: 1, this node is that state is idle node in this layer; 2, the frequency hopping bandwidth represented of the frequency hopping sign of this node is the maximum bandwidth of sub-district SRS, and promptly this node is supported full bandwidth frequency hopping; Perhaps, the frequency hopping bandwidth that the frequency hopping sign of this node is represented, consistent with the frequency hopping bandwidth of terminal SRS.
Shown in Fig. 1 C, always have 6 nodes in the 3rd layer (top is the 0th layer), that is to say the embodiment of the invention the 3rd layer, search and satisfy when satisfying first node of above two conditions simultaneously, at most also only need 6 nodes of traversal in sub-district SRS bandwidth tree.And in the prior art, also to travel through 12 RB under the optimal situation one by one; Need to travel through one by one 72 RB under the worst case.
Step 13:, distribute to SRS with the frequency domain position of first idle node corresponding bandwidth resource as SRS.
When distributing frequency domain position for terminal SRS, above-mentioned two conditions have been considered: frequency hopping bandwidth that node is represented and the frequency hopping bandwidth of terminal SRS, make that (frequency hopping bandwidth node is the affiliated frequency hopping bandwidth node of node that satisfies above-mentioned two conditions: in the layer of the frequency hopping bandwidth of terminal SRS correspondence in the SRS bandwidth tree, satisfy progenitor's node of the node of above-mentioned two conditions), the frequency hopping bandwidth unanimity of its all direct descendant's nodes.Therefore, after the node frequency points corresponding position of satisfying above two conditions distributed to terminal SRS, not only make terminal on this frequency domain position, send SRS, can also avoid terminal SRS after frequency hopping on the frequency domain position, can not distribute the terminal of SRS frequency domain position to clash with other to the LTE base station.This frequency domain position is the initial frequency domain position of this terminal SRS.
Terminal SRS is distributed in the node frequency points corresponding position of satisfying above two conditions.Initial frequency domain position by its SRS of rrc message notice terminal.
The method for allocating bandwidth resources of the measuring reference signals that the embodiment of the invention provides is for each node in the SRS bandwidth tree of sub-district is provided with Status Flag and frequency hopping sign.Utilize the characteristics of SRS bandwidth tree,, at first in the SRS bandwidth tree, search the frequency domain layer of the frequency domain position correspondence of terminal SRS according to the transmission bandwidth of terminal SRS.Then, according to the Status Flag and the frequency hopping sign of each node, in this frequency domain layer, seek the node that first state free time and frequency hopping scope and the frequency hopping scope of terminal SRS are not conflicted.The pairing bandwidth resources of first node that satisfies condition as initial frequency domain position, are distributed to terminal SRS.Thereby overcome in the prior art, when distributing frequency domain position, need travel through the defective of sub-district SRS bandwidth resources piece one by one, improved the efficient of distributing frequency domain position for terminal SRS for terminal SRS.And the embodiment of the invention can also avoid terminal SRS after frequency hopping in the efficient that improves simultaneously, clashes with the frequency domain position of other terminal SRS.
Fig. 2 is the method for allocating bandwidth resources flow chart of second embodiment of the invention measuring reference signals, and as shown in Figure 2, present embodiment also comprises on the basis of the corresponding embodiment of Fig. 1:
Step 14:, be that SRS distributes the frequency hopping position at the frequency domain layer according to the frequency hopping bandwidth of SRS;
After terminal is obtained the initial frequency domain position of SRS, may in the designated bandwidth scope, carry out frequency hopping, promptly on the frequency hopping position, send SRS to the base station according to the indication of base station.Shown in Fig. 1 C, suppose that the transmission bandwidth of terminal SRS is 4RB, distribute to the initial frequency domain position of terminal SRS, be first node k corresponding bandwidth resource of the 3rd layer in the SRS bandwidth of cell tree: 1RB to 4RB.The frequency hopping bandwidth of terminal SRS is 24RB, need the multiple with 4 be that starting point is determined 4 continuous RB in 1RB to 24RB, is the frequency hopping position of terminal SRS.Promptly from: determine the frequency hopping position 5RB to 8RB (node L), 9RB to 12RB (node M), 13RB to 16RB (node N), 17RB to 20RB (node O) and the 21RB to 24RB (node P).
Utilize the structure of sub-district SRS bandwidth tree, above-mentioned frequency hopping position is corresponding to the pairing bandwidth resources of the node that meets the following conditions: in the SRS bandwidth tree of sub-district in the 3rd layer, belong to the node of first node direct descendant in the ground floor.When determining these nodes, determine the frequency hopping bandwidth of terminal SRS earlier, the place layer in the SRS bandwidth tree of sub-district (being called the frequency hopping layer); Then, determine first idle node (first idle node corresponding bandwidth resource, distributed to SRS as frequency domain position) progenitor's node in the frequency hopping layer, with this progenitor's node all direct descendant's nodes, as the frequency hopping position of SRS at frequency domain layer (layer at first idle node place).
Step 15: send rrc message to terminal, rrc message comprises frequency domain position and the frequency hopping position of the SRS of terminal.
The base station comprises transmission bandwidth, frequency hopping bandwidth, initial frequency domain position and the frequency hopping position of terminal in the RRC configuration information that terminal sends.
The method for allocating bandwidth resources of the measuring reference signals that the embodiment of the invention provides, after distributing initial frequency domain position for terminal SRS, by the characteristics of sub-district SRS bandwidth tree, according to terminal SRS frequency hopping bandwidth, the frequency domain position of determining in the node from the frequency domain layer after the frequency hopping is the frequency hopping position.And send initial frequency domain position and frequency hopping position to terminal by the RRC configuration information.Because the embodiment of the invention has been utilized sub-district SRS bandwidth tree, when determining the frequency hopping position, does not need to travel through one by one Resource Block, therefore improved the efficient of distributing the frequency hopping position for terminal SRS.
The method for allocating bandwidth resources flow chart of the measuring reference signals that Fig. 3 A provides for third embodiment of the invention.The executive agent of present embodiment is the LTE base station, and the SRS bandwidth tree when present embodiment adopts No. 3 configurations with the 20M sub-district is an example, and the method for allocating bandwidth resources of embodiment of the invention measuring reference signals is described.
Step 31:, determine the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of SRS according to the transmission bandwidth of SRS;
Step 32: search first node in this frequency domain layer;
Step 33: the Status Flag that reads this node;
Step 34: whether the state of judging this node is idle;
If step 34 is judged the state of this node for idle, then execution in step 35: the frequency hopping sign that reads this node; Otherwise execution in step 314: in this frequency domain layer, search the next node of this node, return step 33 afterwards and continue to carry out.
Step 36: whether the frequency hopping sign of judging this node expresses support for the full bandwidth frequency hopping;
Shown in Fig. 1 C, the transmission bandwidth of root node (the 0th node layer) place layer correspondence is the maximum bandwidth 72RB of sub-district SRS; First node (Node B) in the ground floor if frequency hopping sign 0, then represent node support terminal frequency hopping (full bandwidth frequency hopping) in the 72RB bandwidth range; First node of the second layer (node E) if frequency hopping sign 1, then represent node support terminal frequency hopping in the 24RB bandwidth range, if 0 expression node support terminal frequency hopping in the 72RB bandwidth range.During initialization, the frequency hopping sign of all nodes is made as 0, expresses support for the full bandwidth frequency hopping.
If step 36 is judged the frequency hopping of this node and is masked as 0, promptly express support for the full bandwidth frequency hopping, then execution in step 37; Otherwise, execution in step 313.
Step 37: the frequency hopping layer of determining frequency hopping bandwidth correspondence in the SRS bandwidth tree of sub-district of SRS;
Step 38: search the progenitor node of this node in the frequency hopping layer, be designated as frequency hopping bandwidth node;
Explanation about progenitor's node: progenitor's node of a node with this node, is positioned in same the branch.Shown in Fig. 1 C, for node K, (root node is top at middle-level all nodes that are higher than node K of SRS bandwidth tree, leaf node is a lowermost layer), the ancestor node that all is called node K, and have only node A, Node B, node E is progenitor's node of node K, because node A, Node B, node K are in same branch of SRS bandwidth tree.
Step 39:, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of SRS with the frequency hopping sign of all direct descendant's nodes of frequency hopping bandwidth node;
Explanation about direct descendant's node: multiply all nodes of by a node, be called direct descendant's node of this node; Multiply the node that by the brotgher of node of this node, be called lateral branch's node of this node.For node E, level is lower than all nodes of node E, all is called descendants's node of node E.And have only node K, node L, node M to be called direct descendant's node of node E, because node K, node L, node M are obtained by node E procreation; Node N, node O, node P are obtained by the brotgher of node F of node E procreation.
Frequency hopping sign with all direct descendant's nodes (comprising this node) of frequency hopping bandwidth node, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS, purpose is: after this node corresponding bandwidth resource is distributed to terminal SRS, if follow-up terminal SRS during frequency hopping, can not clash with the frequency domain position of other terminal in the frequency hopping bandwidth range.The frequency hopping sign of this node is changed to the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS, purpose is, after the frequency domain position of this node correspondence is released, when if the frequency domain position of other node correspondence also is in seizure condition in the hop region that the frequency hopping sign of this node is represented, during the frequency domain position of this node correspondence of subsequent allocations, also need consider the frequency hopping scope of follow-up terminal SRS, clash with other terminal SRS avoiding.
Step 310: the Status Flag of the Status Flag of direct descendant's node of the Status Flag of progenitor's node of this node, this node and this node is recorded as takies;
Step 311: the frequency domain position of this node correspondence is distributed to SRS;
Step 312:, be that SRS distributes the frequency hopping position at the frequency domain layer according to the frequency hopping bandwidth of SRS;
The concrete operations of step 312 are referring to describing among figure below 3B.After determining the frequency hopping position of terminal SRS, send rrc message, comprise frequency domain position and the frequency hopping position of terminal SRS in the rrc message to terminal.
If judging the frequency hopping sign of this node in step 36 is not 0, promptly do not support the full bandwidth frequency hopping, then execution in step 313: whether the frequency hopping sign of judging this node is consistent with the corresponding frequency hopping sign of the frequency hopping bandwidth of terminal SRS;
For example, the frequency hopping bandwidth of terminal SRS is 24RB, then the frequency hopping sign 1 of the frequency hopping bandwidth correspondence of terminal SRS; The frequency hopping bandwidth of terminal SRS is 12RB, and then the frequency hopping of the frequency hopping bandwidth correspondence of terminal SRS is masked as 2.
If judge in the step 313: the corresponding frequency hopping sign of the frequency hopping sign of this node and the frequency hopping bandwidth of terminal SRS is consistent, then direct execution in step 310 is to step 312, otherwise, execution in step 314: in the frequency domain layer, search the next node of this node, return step 33 then and continue to carry out.
When the corresponding frequency hopping sign of the frequency hopping sign of this node and the frequency hopping bandwidth of terminal SRS is consistent, because the existing record of the frequency hopping sign of terminal SRS frequency hopping bandwidth interior nodes, therefore do not need again the frequency hopping sign of these nodes is carried out record, only, carry out Status Flag and revise all progenitor's nodes of this node, this node, all direct descendant's nodes of this node.
The flow chart that distributes the frequency hopping position in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 B provides for third embodiment of the invention, shown in Fig. 3 B, step 312 (step 14) specifically can comprise among the corresponding embodiment of Fig. 2:
Step 312A: the frequency hopping layer of determining frequency hopping bandwidth correspondence in the SRS bandwidth tree of sub-district of SRS;
Shown in Fig. 1 C, suppose that the transmission bandwidth of terminal SRS is 4RB, the initial frequency domain position of distributing to terminal SRS is, first node (node K) corresponding bandwidth resource of the 3rd layer in the SRS bandwidth of cell tree: i.e. 1RB to 4RB.The frequency hopping bandwidth of terminal SRS is 24RB, then with ground floor (B
SRSBe 24RB) be called the frequency hopping layer of this terminal SRS.
Frequency hopping bandwidth node is the progenitor node of first idle node in the frequency hopping layer.For example, first node in the ground floor (frequency hopping bandwidth node, Node B) is the progenitor node of first node in the 3rd layer (node K) in ground floor (frequency hopping layer).
From the above, the transmission bandwidth of terminal SRS is 4RB, then the 3rd layer of frequency domain layer that is called terminal SRS.Frequency hopping nodes of locations (node L, node M, node N, node O, node P) and first idle node (first node in the 3rd layer, node L) in this frequency domain layer (the 3rd layer), and belong to the direct descendant of frequency hopping bandwidth node (first node in the ground floor, Node B).
With node L, node M, node N, node O and node P difference corresponding bandwidth resource, really sky is the frequency hopping position of terminal SRS.
Below enumerate two examples, step in the present embodiment described:
The transmission bandwidth of one example: terminal SRS has been defined as 12RB, frequency hopping bandwidth 24RB (expression allows frequency hopping in 0 to 24RB).Sub-district SRS bandwidth tree view behind recording status sign when transmission bandwidth is 12RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 C provides for third embodiment of the invention, the view of sub-district SRS bandwidth tree behind record frequency hopping sign when transmission bandwidth is for 12RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 D provides for third embodiment of the invention.
Shown in Fig. 3 C,, determine the second layer of frequency domain position in the SRS bandwidth tree of terminal SRS according to the transmission bandwidth 12RB of terminal SRS.If first node (node E) is an idle condition in the second layer, and its frequency hopping sign expresses support for full bandwidth frequency hopping (frequency hopping is masked as 0) or its frequency hopping is masked as 1 (consistent with the frequency hopping sign that terminal SRS frequency hopping bandwidth is corresponding), then that this node (node E) is corresponding frequency domain position 1RB to 12RB distributes to terminal SRS, so that terminal uses 1RB to 12RB bandwidth to send SRS to the base station.
Simultaneously, with progenitor's node (node A, Node B) of first node in the second layer (node E), and the second layer in the Status Flag of first node (node E) direct descendant's node (node K, node L, node M) and the 3rd layer the Status Flag of first node (node E) be recorded as and take.The Resource Block of node E correspondence is 1-12RB, after 1-12RB distributed to terminal SRS, because the 1-12RB among 1-12RB among the 1-72RB (corresponding node A) and the 1-24RB (corresponding node B) is shared by current terminal SRS, whole RB of 1-4RB (corresponding node K), 5-8RB (corresponding node L), 9-12RB (corresponding node M) are shared by current terminal SRS, therefore do not have idle continuously RB among these RB, thereby can not reallocate to follow-up terminal.
Shown in Fig. 3 D, also need search frequency hopping bandwidth 24RB correspondence and be frequency hopping range node (first node in the ground floor of the progenitor of first node of the second layer (node E), Node B), with the frequency hopping sign of all direct descendant's nodes (node E, node F, node K, node L, node M, node N, node O, node P) of this frequency hopping range node (Node B), be recorded as the frequency hopping sign of terminal SRS: 1.
The transmission bandwidth of another example: terminal SRS has been defined as 4RB, and frequency hopping bandwidth 24RB allows frequency hopping in 0 to 24RB).The view of sub-district SRS bandwidth tree behind recording status sign when transmission bandwidth is 4RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 D provides for third embodiment of the invention, the view of sub-district SRS bandwidth tree behind record frequency hopping sign when transmission bandwidth is for 4RB in the method for allocating bandwidth resources of the measuring reference signals that Fig. 3 E provides for third embodiment of the invention.
Shown in Fig. 3 E, according to the transmission bandwidth 4RB of terminal SRS, the frequency domain position of determining terminal SRS the 3rd layer in the SRS bandwidth tree.If first node (node K) is an idle condition in the 3rd layer, and its frequency hopping is masked as 0 (expressing support for the full bandwidth frequency hopping) or its frequency hopping is masked as 1 (consistent with the frequency hopping sign that terminal SRS frequency hopping bandwidth is corresponding), then that this node (node K) is corresponding frequency domain position 1RB to 4RB distributes to terminal SRS, so that terminal uses 1RB to 4RB bandwidth to send SRS to the base station.
Simultaneously, (node K is a leaf node with direct descendant's node of first node (node K) in the Status Flag of progenitor's node (node E, node A, Node B) of first node (node K) in the 3rd layer, the 3rd layer, do not have descendants's node) Status Flag, and the 3rd layer in the Status Flag of first node (node K), all be recorded as and take.
Shown in Fig. 3 F, also need search frequency hopping bandwidth 24RB correspondence and progenitor's node (first node of ground floor that be the 3rd layer of first node (node K), Node B), with the frequency hopping sign of all direct descendant's nodes (node E, node F, node K, node L, node M, node N, node O, node P) of this progenitor's node (Node B), be recorded as the frequency hopping sign of terminal SRS: 1.
The method for allocating bandwidth resources of the measuring reference signals that the embodiment of the invention provides, utilize the characteristics of SRS bandwidth tree, in the SRS bandwidth tree, search the frequency domain layer of frequency domain position correspondence of terminal SRS by the transmission bandwidth of terminal SRS after, directly in this frequency domain layer, seek the node that first state free time and frequency hopping scope and the frequency hopping scope of terminal SRS are not conflicted, the frequency domain position of this node correspondence is distributed to terminal SRS.Consider follow-up to other terminal distribution SRS frequency domain position, need Status Flag with all direct descendant's nodes of the Status Flag of all progenitor's nodes of the Status Flag of this node, this node and this node, be recorded as and take, can not distribute to other terminal SRS as frequency domain position with expression.Simultaneously, according to circumstances with the frequency hopping sign of frequency hopping bandwidth range interior nodes, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS so that follow-up be other terminal SRS when distributing frequency domain position in this frequency hopping bandwidth, the frequency domain conflict can not take place in each terminal each other.Present embodiment has improved the efficient of the frequency domain position of distributing terminals SRS, and can avoid later use sub-district SRS bandwidth tree to distribute the SRS frequency domain position time, the frequency domain conflict can not take place between each terminal.
The bandwidth resource allocation apparatus structure schematic diagram of the measuring reference signals that Fig. 4 provides for fourth embodiment of the invention, as shown in Figure 3, comprising: frequency domain layer determination module 41, frequency domain node are searched module 42 and frequency domain position distribution module 43.
The embodiment of the invention is created two flag bits for each node during to sub-district SRS bandwidth tree modeling, is respectively Status Flag and frequency hopping sign.Wherein, Status Flag is represented, the state of node corresponding bandwidth resource, as: idle or take; Free time shows that the node corresponding bandwidth resource also do not distribute to terminal SRS, and the frequency domain position that takies expression node correspondence has been distributed to terminal SRS.Wherein, the frequency hopping sign is represented, the frequency hopping bandwidth that the node corresponding bandwidth resource is supported, the hierachy number of correspondence in the SRS bandwidth tree of sub-district.During initialization, the frequency hopping sign of each node is zero (root node respective layer number of times is the 0th layer, is the maximum bandwidth of sub-district SRS according to corresponding bandwidth resource), and to represent: each node corresponding bandwidth resource is supported full bandwidth frequency hopping when initial condition.
Frequency domain layer determination module 41 is used for the transmission bandwidth according to SRS, determines the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of SRS.The frequency domain node is searched module 42, be used for according to the Status Flag of each node of frequency domain layer and the frequency hopping sign of each node, search maximum bandwidth that state free time and frequency hopping bandwidth are sub-district SRS or corresponding to first idle node of frequency hopping bandwidth of frequency hopping bandwidth and SRS.Frequency domain position distribution module 43 is used for the frequency domain position of first idle node corresponding bandwidth resource as SRS distributed to SRS.
Particularly, after the transmission bandwidth of terminal SRS is determined, frequency domain layer determination module 41 transmission bandwidths, the frequency domain position of determining terminal SRS corresponding frequency domain layer in the SRS bandwidth tree of sub-district according to terminal SRS.According to the Status Flag of each node in the frequency domain layer and the frequency hopping sign of each node, the frequency domain node searches that module 42 is searched the state free time and the frequency hopping bandwidth is the maximum bandwidth of sub-district SRS or corresponding to first idle node of frequency hopping bandwidth of frequency hopping bandwidth and SRS.Frequency domain position distribution module 43 is defined as the frequency domain position of first idle node correspondence the frequency domain position of terminal SRS.
The working mechanism of each module does not repeat them here referring to describing among first embodiment in the present embodiment.
The bandwidth resource allocation device of the measuring reference signals that the embodiment of the invention provides, utilize the characteristics of SRS bandwidth tree, transmission bandwidth by terminal SRS is determined the frequency domain layer of frequency domain position correspondence of terminal SRS in the SRS bandwidth tree after, in this frequency domain layer, seek the node that first state free time and frequency hopping scope and the frequency hopping scope of terminal SRS are not conflicted, the frequency domain position of this node correspondence is distributed to terminal SRS.Thereby overcome in the prior art, when distributing frequency domain position, need travel through the defective of sub-district SRS bandwidth resources piece one by one, improved the efficient of the frequency domain position of distributing terminals SRS for terminal SRS.
The bandwidth resource allocation apparatus structure schematic diagram of the measuring reference signals that Fig. 5 A provides for fifth embodiment of the invention, shown in Fig. 5 A, on the basis of the corresponding embodiment of Fig. 4, present embodiment also comprises: frequency hopping position distribution module 44 and sending module 45.
Frequency hopping position distribution module 44 is used for the frequency hopping bandwidth according to SRS, determines the frequency hopping position of terminal SRS in the frequency domain layer.Sending module 45 is used for sending the RRC configuration information to terminal, and the RRC configuration information comprises frequency domain position and frequency hopping position.
The structural representation of frequency hopping position distribution module in the bandwidth resource allocation device of the measuring reference signals that Fig. 5 B provides for fifth embodiment of the invention, shown in Fig. 5 B, frequency hopping position distribution module 44 comprises: the frequency hopping layer determines that submodule 441, frequency hopping bandwidth node are searched submodule 442, the frequency hopping nodes of locations is searched submodule 443 and frequency hopping position distribution sub module 444.
The frequency hopping layer is determined submodule 441, is used for determining the frequency hopping bandwidth of SRS, the frequency hopping layer of correspondence in the SRS bandwidth tree of sub-district.Frequency hopping bandwidth node is searched submodule 442, is used for searching at the frequency hopping layer frequency hopping bandwidth node of first idle node; Frequency hopping bandwidth node is the progenitor node of first idle node in the frequency hopping layer.The frequency hopping nodes of locations is searched submodule 443, is used at the frequency domain layer, searches all frequency hopping nodes of locations that belong to frequency hopping bandwidth node direct descendant with first idle node; The frequency hopping nodes of locations and first idle node and belong to the direct descendant of frequency hopping bandwidth node in the frequency domain layer.Frequency hopping position distribution sub module 444 is used for each frequency hopping nodes of locations corresponding bandwidth resource is defined as the frequency hopping position of SRS.
Particularly, after frequency domain position distribution module 43 was defined as the frequency domain position of terminal SRS with the frequency domain position of first idle node correspondence, the frequency hopping layer determined that submodule 441 determines the frequency hopping bandwidth of terminal SRS, corresponding frequency hopping layer in the SRS bandwidth tree of sub-district.After the frequency hopping layer determined that submodule 441 is determined the frequency hopping layer, frequency hopping bandwidth node was searched submodule 442 is searched first idle node in the frequency hopping layer frequency hopping bandwidth node; Frequency hopping bandwidth node is the progenitor node of first idle node in the frequency hopping layer.The frequency hopping nodes of locations is searched submodule 443 in the frequency domain layer that frequency domain layer determination module 41 determined, and searches all frequency hopping nodes of locations that belong to frequency hopping bandwidth node direct descendant with first idle node; The frequency hopping nodes of locations and first idle node and belong to the direct descendant of frequency hopping bandwidth node in the frequency domain layer.Frequency hopping position distribution sub module 444 is searched the pairing bandwidth resources of each frequency hopping nodes of locations that submodule 443 finds out with the frequency hopping nodes of locations, is defined as the frequency hopping position of terminal SRS.
The working mechanism of each module does not repeat them here referring to describing among second embodiment in the present embodiment.
The bandwidth resource allocation device of the measuring reference signals that the embodiment of the invention provides, after being the initial frequency domain position of terminal distribution, by the characteristics of sub-district SRS bandwidth tree, according to terminal SRS frequency hopping bandwidth, the frequency domain position of determining in the node from the frequency domain layer after the frequency hopping is the frequency hopping position.And pass through the RRC configuration information to initial frequency domain position and frequency hopping position take place.Because the embodiment of the invention has been utilized sub-district SRS bandwidth tree, when determining the frequency hopping position, does not need to travel through one by one Resource Block, therefore improved the efficient of distributing the frequency hopping position for terminal SRS.
The bandwidth resource allocation apparatus structure schematic diagram of the measuring reference signals that Fig. 6 provides for sixth embodiment of the invention, as shown in Figure 6, on the basis of the corresponding embodiment of Fig. 4, present embodiment also comprises: judge module 46, frequency hopping sign logging modle 47 and Status Flag logging modle 48.
Judge module 46 is used to judge whether the frequency hopping bandwidth that the frequency hopping sign of first idle node is represented is the maximum bandwidth of sub-district SRS, or judges whether the frequency hopping bandwidth that the frequency hopping sign of first idle node represents is consistent with the frequency hopping bandwidth of terminal SRS.Frequency hopping sign logging modle 47 is used for the frequency hopping sign with all direct descendant's nodes of the frequency hopping sign of frequency hopping bandwidth node and frequency hopping bandwidth node, is recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS.Status Flag logging modle 48 is used for the Status Flag with direct descendant's node of the Status Flag of all progenitor's nodes of first idle node, first idle node, and the Status Flag of first idle node is recorded as and takies.
Particularly, after frequency domain position distribution module 43 is defined as the frequency domain position of terminal SRS with the frequency domain position of first idle node correspondence, consider to be that follow-up terminal SRS distributes frequency domain position, need to revise the Status Flag and the frequency hopping sign of interdependent node.
After judge module 46 is judged frequency hopping bandwidth that the frequency hopping sign of first idle node represents and is the maximum bandwidth of sub-district SRS, frequency hopping bandwidth node is searched submodule 442 is searched first idle node in the frequency hopping layer frequency hopping bandwidth node, and frequency hopping bandwidth node is the progenitor node of first idle node in the frequency hopping layer.Frequency hopping sign logging modle 47 is recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS with the frequency hopping sign of all direct descendant's nodes of the frequency hopping sign of frequency hopping bandwidth node and frequency hopping bandwidth node.Status Flag logging modle 48 is the Status Flag of direct descendant's node of the Status Flag of all progenitor's nodes of first idle node, first idle node, and the Status Flag of first idle node is recorded as and takies.
Judge module 46 is judged frequency hopping bandwidth that the frequency hopping sign of first idle node represents when consistent with the frequency hopping bandwidth of terminal SRS, does not write down the frequency hopping sign of interdependent node, only writes down the Status Flag of node.Promptly by the Status Flag of Status Flag logging modle 48 with direct descendant's node of the Status Flag of all progenitor's nodes of first idle node, first idle node, and the Status Flag of first idle node is recorded as and takies.
The working mechanism of each module does not repeat them here referring to describing among the 3rd embodiment in the present embodiment.
The bandwidth resource allocation device of the measuring reference signals that the embodiment of the invention provides, utilize the characteristics of SRS bandwidth tree, in the SRS bandwidth tree, search the frequency domain layer of frequency domain position correspondence of terminal SRS by the transmission bandwidth of terminal SRS after, directly in this frequency domain layer, seek the node that first state free time and frequency hopping scope and the frequency hopping scope of terminal SRS are not conflicted, the frequency domain position of this node correspondence is distributed to terminal SRS.Consider follow-up to other terminal distribution SRS frequency domain position, need Status Flag with all direct descendant's nodes of the Status Flag of all progenitor's nodes of the Status Flag of this node, this node and this node, be recorded as and take, can not distribute to other terminal SRS as frequency domain position with expression.Simultaneously, according to circumstances with the frequency hopping sign of frequency hopping bandwidth range interior nodes, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of terminal SRS so that follow-up be other terminal SRS when distributing frequency domain position in this frequency hopping bandwidth, the frequency domain conflict can not take place in each terminal each other.Present embodiment has improved the efficient of the frequency domain position of distributing terminals SRS, and can avoid later use sub-district SRS bandwidth tree to distribute the SRS frequency domain position time, the frequency domain conflict can not take place between each terminal.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the method for allocating bandwidth resources of a measuring reference signals is characterized in that, comprising:
According to the transmission bandwidth of measuring reference signals, determine the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of described measuring reference signals;
According to the Status Flag of each node in the described frequency domain layer and the frequency hopping sign of each node, searching the frequency hopping bandwidth that Status Flag represents that free time and frequency hopping sign are represented is first idle node of the maximum bandwidth of sub-district SRS, or searches frequency hopping bandwidth that state representation free time and frequency hopping sign represent and corresponding to first idle node of frequency hopping bandwidth of described measuring reference signals;
With the frequency domain position of described first idle node corresponding bandwidth resource, distribute to described measuring reference signals as described measuring reference signals.
2. according to the method for allocating bandwidth resources of the described measuring reference signals of claim 1, it is characterized in that, also comprise:
According to the frequency hopping bandwidth of described measuring reference signals, be that described measuring reference signals is distributed the frequency hopping position at described frequency domain layer.
3. according to the method for allocating bandwidth resources of the described measuring reference signals of claim 2, it is characterized in that, according to the frequency hopping bandwidth of described measuring reference signals, is that described measuring reference signals is distributed the frequency hopping position in described frequency domain layer, comprising:
Determine the frequency hopping bandwidth of described measuring reference signals, the frequency hopping layer of correspondence in the SRS bandwidth tree of described sub-district;
In described frequency hopping layer, search the frequency hopping bandwidth node of described first idle node; Described frequency hopping bandwidth node is the progenitor node of described first idle node in described frequency hopping layer;
In described frequency domain layer, search all frequency hopping nodes of locations that belong to described frequency hopping bandwidth node direct descendant with described first idle node;
With the frequency hopping position of each described frequency hopping nodes of locations corresponding bandwidth resource, distribute to described measuring reference signals as described measuring reference signals.
4. according to the method for allocating bandwidth resources of claim 1 or 2 described measuring reference signals, it is characterized in that, also comprise:
If the frequency hopping bandwidth that the frequency hopping sign of described first idle node is represented is the maximum bandwidth of sub-district SRS, in described frequency hopping layer, search the frequency hopping bandwidth node of described first idle node; Described frequency hopping bandwidth node is the progenitor node of described first idle node in described frequency hopping layer;
With the frequency hopping sign of all direct descendant's nodes of the frequency hopping sign of described frequency hopping bandwidth node and described frequency hopping bandwidth node, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of described measuring reference signals;
With the Status Flag of all direct descendant's nodes of the Status Flag of all progenitor's nodes of described first idle node, described first idle node, and the Status Flag of described first idle node is recorded as and takies.
5. according to the method for allocating bandwidth resources of claim 1 or 2 described measuring reference signals, it is characterized in that, also comprise:
If the frequency hopping bandwidth that the frequency hopping sign of described first idle node is represented is consistent with the frequency hopping bandwidth of described measuring reference signals, with the Status Flag of all direct descendant's nodes of the Status Flag of all progenitor's nodes of described first idle node, described first idle node and the Status Flag of described first idle node, be recorded as and take.
6. the bandwidth resource allocation device of a measuring reference signals is characterized in that, comprising:
Frequency domain layer determination module is used for the transmission bandwidth according to measuring reference signals, determines the frequency domain layer of frequency domain position correspondence in the SRS bandwidth tree of sub-district of described measuring reference signals;
The frequency domain node is searched module, be used for according to the Status Flag of described each node of frequency domain layer and the frequency hopping sign of each node, searching the frequency hopping bandwidth that Status Flag represents that free time and frequency hopping sign are represented is first idle node of the maximum bandwidth of sub-district SRS, or searches frequency hopping bandwidth that state representation free time and frequency hopping sign represent and corresponding to first idle node of frequency hopping bandwidth of described measuring reference signals;
The frequency domain position distribution module is used for the frequency domain position of described first idle node corresponding bandwidth resource as described measuring reference signals distributed to described measuring reference signals.
7. according to the bandwidth resource allocation device of the described measuring reference signals of claim 6, it is characterized in that, also comprise:
The chess piece is distributed in the frequency hopping position, is used for the frequency hopping bandwidth according to described terminal, is that described measuring reference signals is distributed the frequency hopping position in described frequency domain layer.
8. according to the bandwidth resource allocation device of the described measuring reference signals of claim 7, it is characterized in that frequency hopping position distribution module comprises:
Frequency hopping is the definite submodule of layer frequently, is used to search the frequency hopping bandwidth of described measuring reference signals, the frequency hopping layer of correspondence in the SRS bandwidth tree of described sub-district;
Frequency hopping bandwidth node is searched submodule, is used for searching at described frequency hopping layer the frequency hopping bandwidth node of described first idle node; Described frequency hopping bandwidth node is the progenitor node of described first idle node in described frequency hopping layer;
The frequency hopping nodes of locations is searched submodule, is used at described frequency domain layer, searches all frequency hopping nodes of locations that belong to described frequency hopping bandwidth node direct descendant with described first idle node;
Frequency hopping position distribution sub module is used for described measuring reference signals is distributed in the frequency hopping position of each described frequency hopping nodes of locations corresponding bandwidth resource as described measuring reference signals.
9. according to the bandwidth resource allocation device of claim 7 or 8 described measuring reference signals, it is characterized in that, also comprise:
Sending module is used for sending the Radio Resource control information to described terminal, and described radio resource control configuration information comprises described frequency domain position and described frequency hopping position.
10. according to the bandwidth resource allocation device of claim 6 or 7 described measuring reference signals, it is characterized in that, also comprise:
Judge module, be used to judge whether the frequency hopping bandwidth that the frequency hopping sign of described first idle node is represented is the maximum bandwidth of sub-district SRS, or whether the frequency hopping bandwidth that the frequency hopping sign of described first idle node is represented is consistent with the frequency hopping bandwidth of described measuring reference signals;
Frequency hopping sign logging modle, be used for if the frequency hopping bandwidth that the frequency hopping sign of described first idle node is represented is consistent with the frequency hopping bandwidth of described measuring reference signals, with the frequency hopping sign of all direct descendant's nodes of the frequency hopping sign of described frequency hopping bandwidth node and described frequency hopping bandwidth node, be recorded as the frequency hopping sign of the frequency hopping bandwidth correspondence of described measuring reference signals;
The Status Flag logging modle is used for the Status Flag with direct descendant's node of the Status Flag of all progenitor's nodes of described first idle node, described first idle node, and the Status Flag of described first idle node is recorded as and takies.
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