CN102036382A - Method, system and device for allocating wireless resources - Google Patents
Method, system and device for allocating wireless resources Download PDFInfo
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- CN102036382A CN102036382A CN2009101745627A CN200910174562A CN102036382A CN 102036382 A CN102036382 A CN 102036382A CN 2009101745627 A CN2009101745627 A CN 2009101745627A CN 200910174562 A CN200910174562 A CN 200910174562A CN 102036382 A CN102036382 A CN 102036382A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The embodiment of the invention discloses a method for allocating wireless resources. The method comprises: the current condition of a wireless link or the current data in a buffer memory are monitored; the wireless resources between the wireless link and a relay link are adjusted according to the monitoring result; or the adjustment information of the wireless resources is transmitted to a base station according to the obtained monitoring result; and the base station adjusts the wireless resources between the wireless link and the relay link according to the adjustment information of the wireless resources. The embodiment of the invention also provides a system for allocating the wireless resources, a relay station and the base station. The dynamic adjustment of the wireless resources is realized by utilizing the technical scheme provided by the embodiment of the invention so that the wireless resources between the wireless link and the relay link are reasonably adjusted in time and the time delay of the data transmission and the waste of the wireless resources are reduced.
Description
Technical field
The present invention relates to the mobile communication technology field, more particularly, relate to a kind of wireless resource allocation method, system and device.
Background technology
Along with the continuous development of mobile communication technology, in order to satisfy user's needs, in original communication system, introduced relay station, be used for the wireless signal that is transmitted between base station and the portable terminal being regenerated and amplifying.Wherein, (Relay, RN) (Donor eNodeB, DeNB) wave point between is called wireless link interface (UU interface) to relay station, and the wave point between relay station and the user terminal (UE) is called repeated link interface (Un interface) with the base station.Generally, adopting between wireless link interface and the repeated link interface with 1ms is that the time division multiplexing mode of unit is shared Radio Resource.Because relay station is when utilizing wireless link interface to carry out promptly reception to base station data, just can't utilize the repeated link interface to send data for UE, and it is same, relay station also can't utilize wireless link interface to carry out the reception of base station data when utilizing the repeated link interface to send number for UE, therefore, for realizing data high-speed between base station and UE, transmitting in phase, the radio-resource-configuration between wireless link interface and the repeated link interface just becomes extremely important.
At present, between wireless link interface and the repeated link interface when carrying out radio-resource-configuration, the normal fixing configuration mode of resource that adopts, that is to say, the configuration of Radio Resource is carried out in the base station between for wireless link interface and repeated link interface after, two interfaces the Radio Resource that can use fix, can not change owing to the variation of network condition.But because the quantity of the UE that relay station is served is dynamic change, and the channel quality of repeated link interface and business demand are also constantly changing, when therefore adopting this method to carry out the configuration of Radio Resource, if for wireless link interface is distributed more Radio Resource, cause downlink data to be piled up in relay station easily, cause relay station buffering time delay to increase, or even the relay station buffer memory overflow; And if be the more Radio Resource of repeated link interface assignment, then might cause the buffering time delay of base station to increase, and if this moment the UE that relay station is served negligible amounts or business demand more after a little while, also can cause the waste of repeated link interface resource.
In addition, also take the mode of periodicity Adjustment System block of information (SIB) to carry out wireless resource allocation between wireless link interface and repeated link interface at present, but will cause system message update owing to adjust SIB, and the system message update of broadcast nature can wake all resident and insert this sub-district UE up, therefore, in common system, the renewal frequency of system message can not be too fast, can't satisfy the rapid adjustment of Radio Resource.
Therefore, in realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: the Radio Resource between wireless link interface and the repeated link interface can not obtain comparatively in time, reasonably adjust.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of wireless resource allocation method, system and device, obtain comparatively timely, reasonable configuration with the Radio Resource between realization wireless link interface and the repeated link interface, thereby reduce data transmission delay and reduce waste of radio resources.
The embodiment of the invention is achieved in that
The embodiment of the invention provides a kind of wireless resource allocation method, comprising:
The present situation of Radio Link or the current data in the buffer memory are monitored;
According to snoop results the Radio Resource between Radio Link and the repeated link is adjusted; Perhaps,
Send the Radio Resource adjustment information according to the snoop results of being obtained to the base station, so that described base station is adjusted the Radio Resource between Radio Link and the repeated link according to the Radio Resource adjustment information.
The embodiment of the invention provides a kind of wireless resource allocation method, comprising:
Receive the Radio Resource adjustment information that relay station sends;
According to received Radio Resource adjustment information the Radio Resource between Radio Link and the repeated link is adjusted.
The embodiment of the invention provides a kind of radio-resource-configuration system, comprising: relay station and base station, wherein,
Described relay station is used for the present situation of Radio Link or the current data of buffer memory are monitored; And the Radio Resource between Radio Link and the repeated link is adjusted according to snoop results; Perhaps, send the Radio Resource adjustment information according to the snoop results of being obtained to the base station;
Described base station is used for according to the Radio Resource adjustment information Radio Resource between Radio Link and the repeated link being adjusted.
The embodiment of the invention provides a kind of relay station, comprising: the monitoring unit and first adjustment unit, perhaps, monitoring unit and transmitting element, wherein,
Described monitoring unit is used for the present situation of Radio Link or the current data of buffer memory are monitored;
Described first adjustment unit is used for according to snoop results the Radio Resource between Radio Link and the repeated link being adjusted.
The embodiment of the invention provides a kind of relay station, comprising: monitoring unit, generation unit and transmitting element, wherein,
Described monitoring unit is used for the present situation of Radio Link or the current data of buffer memory are monitored;
Described generation unit is used for the snoop results obtained according to monitoring unit, generates the Radio Resource adjustment information;
Described transmitting element is used for sending the Radio Resource adjustment information that generation unit generates to the base station, so that described base station is adjusted the Radio Resource between Radio Link and the repeated link according to the Radio Resource adjustment information.
The embodiment of the invention provides a kind of base station, comprising: the receiving element and second adjustment unit, wherein,
Described receiving element is used to receive the Radio Resource adjustment information that relay station sends;
Described second adjustment unit is used for according to the received Radio Resource adjustment information of receiving element the Radio Resource between Radio Link and the repeated link being adjusted.
The embodiment of the invention provides a kind of wireless resource allocation method, comprising:
Be used to carry out the sub-frame of uplink that the downlink data control information is transmitted to user terminal UE configuration, so that UE utilizes described sub-frame of uplink to carry out the transmission of downlink data control information;
Receive the downlink data control information that UE sends;
According to received downlink data control information the downlink data of UE is adjusted.
Compared with prior art, the technical scheme that the embodiment of the invention provides has the following advantages and characteristics: relay station is by monitoring the present situation of Radio Link or the current data in the descending transmission buffer memory, can grasp in time in the network that the utilize situation and the relay station up-downgoing of Radio Resource sends the correlation circumstance of data in the buffer memory on the current wireless link and repeated link, according to this snoop results, can dynamically adjust the Radio Resource between current wireless link and the repeated link by base station or relay station, so that the Radio Resource between Radio Link and the repeated link obtains is comparatively timely, reasonably adjust, thereby reduce data transmission delay and reduce waste of radio resources.
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 to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only 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.
Fig. 1 is the related a kind of wireless resource allocation method flow chart of the embodiment of the invention;
Fig. 2 is the related another kind of wireless resource allocation method flow chart of the embodiment of the invention;
Fig. 3 is the related a kind of radio-resource-configuration system configuration schematic diagram of the embodiment of the invention;
Fig. 4 is the related a kind of relay station structural representation of the embodiment of the invention;
Fig. 5 is the structural representation of a certain unit in the related a kind of relay station of the embodiment of the invention;
Fig. 6 is the related another kind of relay station structural representation of the embodiment of the invention;
Fig. 7 is the structural representation of a certain unit in the related another kind of relay station of the embodiment of the invention;
Fig. 8 is the related a kind of architecture of base station schematic diagram of the embodiment of the invention;
Fig. 9 is the structural representation of a certain unit in the related a kind of base station of the embodiment of the invention;
Figure 10 is the wireless resource allocation method flow chart of the related concrete scene of a kind of combination of the embodiment of the invention;
Figure 11 is the wireless resource allocation method flow chart of the related another kind of the embodiment of the invention in conjunction with concrete scene;
Figure 12 is the third related wireless resource allocation method flow chart in conjunction with concrete scene of the embodiment of the invention;
Figure 13 is the wireless resource allocation method flow chart of the 4th kind of related concrete scene of combination of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only 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.
The embodiment of the invention provides a kind of wireless resource allocation method, and these method concrete steps comprise as shown in Figure 1:
S101: the present situation of Radio Link or the current data in the buffer memory are monitored;
S102: the Radio Resource between Radio Link and the repeated link is adjusted according to snoop results;
In S102, relay station carries out in the continuous snoop procedure in the present situation or the current data in the buffer memory to Radio Link, judge whether the current channel quality of Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, judge whether descending transmission buffer memory data stacking occurs or overflow, when showing the current channel quality of Radio Link, judged result is lower than the pre-configured channel quality that reaches of requiring, and/or, descending transmission buffer memory data stacking occurs or overflows, the Radio Resource of described repeated link then increases the Radio Resource of Radio Link.
Except adopting the mode among the S102 to carry out the adjustment of Radio Resource, also can adopt the mode among the S103 to carry out the adjustment of Radio Resource:
S103: send the Radio Resource adjustment information according to the snoop results of being obtained to the base station, according to the Radio Resource adjustment information Radio Resource between Radio Link and the repeated link is adjusted by described base station.
In S103, relay station generates first kind Radio Resource adjustment information according to snoop results after obtaining snoop results, and wherein first kind Radio Resource adjustment information herein comprises: air-link resources or repeated link resource that the relay station expectation is obtained.Relay station is after generating first kind Radio Resource adjustment information, this adjustment information is sent to the base station, for example, relay station tells base station one or more Radio Resource subframes that are used for repeated link subsequently will be adjusted to air-link resources by the one or more bits on relay base station-Physical Uplink Control Channel.Radio Resource between Radio Link and the repeated link is adjusted according to received first kind Radio Resource adjustment information by the base station.
In addition, relay station is after obtaining snoop results, also can generate the second class Radio Resource adjustment information according to snoop results, wherein the second class Radio Resource adjustment information herein comprises: relay station air-link resources utilization ratio, data cached time delay and data cached state.Relay station sends to the base station with this adjustment information after generating the second class Radio Resource adjustment information, the Radio Resource between Radio Link and the repeated link is adjusted according to the second received class Radio Resource adjustment information by the base station.
Need to prove that when the mode in adopting S103 was adjusted Radio Resource, relay station can adopt periodic manner or Event triggered mode to send the Radio Resource adjustment information to the base station.
A kind of wireless resource allocation method that the embodiment of the invention provided, by the present situation of Radio Link or the current data in the buffer memory are monitored, can in time grasp in the network correlation circumstance of data in the buffer memory that utilizes on situation and the relay station of Radio Resource on the current wireless link and repeated link, according to this snoop results, can dynamically adjust the Radio Resource between current wireless link and the repeated link by base station or relay station, so that the Radio Resource between Radio Link and the repeated link obtains is comparatively timely, reasonably adjust, thereby reduce data transmission delay and reduce waste of radio resources.
The embodiment of the invention also provides another kind of wireless resource allocation method, and these method concrete steps comprise as shown in Figure 2:
S201: receive the Radio Resource adjustment information that relay station sends;
In S201, the base station is when receiving the Radio Resource adjustment information that relay station sends, and received Radio Resource adjustment information may be a first kind Radio Resource adjustment information, that is: air-link resources or the repeated link resource obtained of relay station expectation; Received Radio Resource adjustment information also may be the second class Radio Resource adjustment information, that is: relay station air-link resources utilization ratio, data cached time delay and data cached state.
S202: the Radio Resource between Radio Link and the repeated link is adjusted according to received Radio Resource adjustment information.
In S202, because the received Radio Resource adjustment information in base station can be divided into the first kind Radio Resource adjustment information and the second class Radio Resource adjustment information, therefore, when utilizing these Radio Resource adjustment information to carry out the adjustment of Radio Resource, there are following two kinds of situations:
When the received Radio Resource adjustment information in base station was first kind Radio Resource adjustment information, the base station was adjusted the Radio Resource between Radio Link and the repeated link according to the content in the first kind Radio Resource adjustment information and in conjunction with the cache information of this relay station; And when the received Radio Resource adjustment information in base station is the second class Radio Resource adjustment information, the base station is adjusted the Radio Resource between Radio Link and the repeated link according to the repeated link wireless resource information between the content in the second class Radio Resource adjustment information and combination and this relay station, will adjust the result afterwards and send to RN by downlink signaling.
A kind of wireless resource allocation method that the embodiment of the invention is related, the base station is by receiving the Radio Resource adjustment information that relay station sent, and the Radio Link of this base station and the Radio Resource between the repeated link are dynamically adjusted according to relevant information included in this adjustment information, so that the Radio Resource between Radio Link and the repeated link obtains comparatively in time, reasonably adjusts, reduce data transmission delay simultaneously, reduce waste of radio resources.
Correspondingly, the embodiment of the invention also provides a kind of radio-resource-configuration system, and this system configuration comprises relay station 301 and base station 302 as shown in Figure 3, wherein:
The radio-resource-configuration system that this embodiment provides can be used to carry out the wireless resource allocation method that the embodiment of the invention provides.This radio-resource-configuration system carries out the process of radio-resource-configuration, the wireless resource allocation method that can provide referring to the embodiment of the invention.
A kind of Radio Resource Adjustment System that the embodiment of the invention provided, relay station is by monitoring the present situation of Radio Link or the current data in the descending transmission buffer memory, can in time grasp in the network correlation circumstance of data in the buffer memory that utilizes on situation and the relay station of Radio Resource on the current wireless link and repeated link, according to this snoop results, can dynamically adjust the Radio Resource between current wireless link and the repeated link by base station or relay station, so that the Radio Resource between Radio Link and the repeated link obtains is comparatively timely, reasonably adjust, when reducing data transmission delay, reduce waste of radio resources.
In addition, the embodiment of the invention also provides a kind of relay station, and this relay station structure comprises the monitoring unit 401 and first adjustment unit 402 as shown in Figure 4, wherein:
Also said units further can be specialized, wherein, first adjustment unit 402 can comprise structure as shown in Figure 5:
First adjusts subelement 502, when the current channel quality of described Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, when data cached appearance is piled up or is overflowed, be used to reduce the Radio Resource of described repeated link, increase the Radio Resource of described Radio Link.
Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network element.
A kind of relay station that this embodiment provides can be used to carry out the wireless resource allocation method that the embodiment of the invention provides.This relay station carries out the process of radio-resource-configuration, the wireless resource allocation method that can provide referring to the embodiment of the invention.
In addition, embodiments of the invention also provide the another kind of relay station structure also can be as shown in Figure 6, and this relay station is used for communicating with the base station, comprises monitoring unit 401, generation unit 602 and transmitting element 603, wherein:
Generation unit 602 is used for the snoop results obtained according to monitoring unit 401, generates the Radio Resource adjustment information;
Transmitting element 603 is used for sending the Radio Resource adjustment information that generation unit 602 generates to the base station, so that described base station is adjusted the Radio Resource between Radio Link and the repeated link according to the Radio Resource adjustment information.
Also said units further can be specialized, wherein, 602 of generation units can comprise the following subelement that generates arbitrarily, perhaps generate the combination of subelement arbitrarily:
First generates subelement 701, is used for generating first kind Radio Resource adjustment information according to snoop results, and described first kind Radio Resource adjustment information comprises air-link resources or the repeated link resource that described relay station expectation is obtained;
Second generates subelement 702, is used for generating the second class Radio Resource adjustment information according to snoop results, and the described second class Radio Resource adjustment information comprises described relay station air-link resources utilization ratio, data cached time delay and data cached state.
Transmitting element 603 specifically is used for generating the first kind Radio Resource adjustment information and the second transmission second class Radio Resource adjustment information that subelement generated that subelement generated with first and is sent to the base station.
Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network element.
A kind of relay station that this embodiment provides can be used to carry out the wireless resource allocation method that the embodiment of the invention provides.This relay station carries out the process of radio-resource-configuration, the wireless resource allocation method that can provide referring to the embodiment of the invention.
A kind of relay station that the embodiment of the invention provided, by the present situation of Radio Link or the current data in the descending transmission buffer memory are monitored, can grasp in time in the network that the utilize situation and the relay station up-downgoing of Radio Resource sends the correlation circumstance of data in the buffer memory on the current wireless link and repeated link, and can carry out the dynamic adjustment of Radio Resource according to snoop results, or will be sent to the base station by the Radio Resource adjustment information that snoop results generated, carry out the dynamic adjustment of Radio Resource by the base station, so that the Radio Resource between Radio Link and the repeated link obtains is comparatively timely, reasonably adjust, reduce data transmission delay, reducing waste of radio resources.
At last, the embodiment of the invention also provides a kind of base station, this architecture of base station as shown in Figure 8, this base station is used for communicating by letter with relay station, comprises the receiving element 801 and second adjustment unit 802, wherein:
Receiving element 801 is used to receive the Radio Resource adjustment information that relay station sends;
After said structure further specialized, second adjustment unit 802 can comprise adjusted subelement as shown in Figure 9 arbitrarily, perhaps adjusts the combination of subelement arbitrarily:
Second adjusts subelement 901, when receiving element 801 received Radio Resource adjustment information are first kind Radio Resource adjustment information, be used for according to the received described first kind Radio Resource adjustment information of receiving element 801, and the Radio Link of described relay station and the Radio Resource between the repeated link adjusted in conjunction with the cache information of described relay station;
The 3rd adjusts subelement 902, when receiving element 801 received Radio Resource adjustment information are the second class Radio Resource adjustment information, be used for according to the received described second class Radio Resource adjustment information of receiving element 801, and in conjunction with and described relay station between the repeated link wireless resource information Radio Resource between described relay station Radio Link and the repeated link is adjusted.
Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network element.
A kind of base station that this embodiment provides can be used to carry out the wireless resource allocation method that the embodiment of the invention provides.The process of radio-resource-configuration is carried out in this base station, the wireless resource allocation method that can provide referring to the embodiment of the invention.
A kind of base station that the embodiment of the invention provided, by receiving the Radio Resource adjustment information that relay station sent, and Radio Resource is dynamically adjusted according to received Radio Resource adjustment information, so that the Radio Resource between Radio Link and the repeated link obtains comparatively in time, reasonably adjusts, reduce data transmission delay and waste of radio resources.
In conjunction with said method, system, device and concrete application scenarios, technical scheme provided by the present invention is done further introduction, in Long Term Evolution (LTE) system, can be by adjusting the configuration that multimedia broadcast multi-broadcasting business single frequency network (MBSFN) subframe realizes Radio Resource between wireless link interface and the repeated link interface, in actual applications, the MBSFN subframe can be used for the transmission of data on the repeated link, also can be used for positioning service and high-order antenna and send reception etc., in the present embodiment, the MBSFN subframe is refered in particular to the Radio Resource that is used to carry out the reception of data on the repeated link.In the present embodiment, carry out wireless resource allocation method and comprise step as shown in figure 10:
Step 1001:DeNB carries out the configuration of MBSFN subframe;
In step 1001, before carrying out proper communication, DeNB at first needs to carry out the initialization of MBSFN sub-frame configuration, and wherein, DeNB can be by the quantity of estimating the UE that will insert this sub-district or the configuration of carrying out the MBSFN subframe by empirical value in the past.
The primitive rule of the adjustment information of step 1002:DeNB configuration RN feedback MBSFN subframe;
In step 1002, when DeNB is configured in the primitive rule of RN being fed back the adjustment information of MBSFN subframe,, the various configurations mode can be arranged: for example according to different applicable cases, when RN reporting information content is configured, can report quantity of desirable MBSFN subframe etc. by regulation RN.For ease of statement, such adjustment information is called first kind adjustment information, for such adjustment information, DeNB can come the MBSFN subframe is directly adjusted according to the quantity of desired MBSFN subframe in the adjustment information.
Simultaneously, during to the configuration of RN reporting information content, can also regulation RN report current metadata cache time delay on it, buffer status, the level of resources utilization of wireless link interface and the next contents such as expectation spectrum efficiency that report adjustment cycle are carried out the reference information that the MBSFN subframe is adjusted to be used for DeNB.Equally, for ease of statement, such adjustment information is called the second class adjustment information, in this category information, RN does not report information such as the type of wishing the MBSFN subframe obtained or quantity to DeNB, but, according to the reference information that is reported the MBSFN subframe is adjusted by DeNB by some reference informations.
In addition, DeNB also can report the mode that reports of the adjustment information of MBSFN subframe to be configured to RN, and for example, regulation RN adopts periodic manner to carry out reporting of adjustment information or adopt the mode of Event triggered to carry out reporting of adjustment information etc.If DeNB regulation RN adopts periodic manner to carry out reporting of adjustment information, then also need the report cycle of RN is configured; And if DeNB regulation RN adopts the mode of Event triggered to carry out reporting of adjustment information, then need activation threshold value is provided with, for example, with the time delay of last certain the class business of RN or the average delay of whole RN data is imposing a condition of activation threshold value, perhaps, going up the time delay of certain class business or the cache size time delay of whole RN data is imposing a condition of activation threshold value with RN, perhaps, can also be imposing a condition of activation threshold value with the actual efficiency of wireless link interface etc.In concrete application process, can be according to the concrete configuration of DeNB, can select only to report a kind of in the two class adjustment information, also two class adjustment information all can be reported, when adopting the mode that two class adjustment information are all reported, after can taking all factors into consideration according to the two class adjustment information of being obtained, DeNB carries out the adjustment of MBSFN subframe.
Above-mentioned two steps are the relevant preparation that DeNB was done before the MBSFN subframe is dynamically adjusted, and DeNB is carrying out follow-uply when the MBSFN subframe is adjusted, and need carry out according to the relevant configuration in above-mentioned two steps.And when the MBSFN subframe is dynamically adjusted, need to carry out following steps:
Data on the step 1003:RN monitoring wireless link or institute's data in buffer information on it, and report MBSFN subframe adjustment information to DeNB;
According in the step 1002 to the configuration of the coherent reference information that RN reported, RN can according to the form of the content of predefined adjustment information and adjustment information according to listen on the Radio Link data conditions carry out the MBSFN subframe and adjust reporting of required adjustment information.
Wherein, because the adjustment information that RN reports to DeNB comprises first kind adjustment information, the second class adjustment information, the perhaps first kind adjustment information and the second class adjustment information, therefore, when adjustment information that RN reported is first kind adjustment information, can be according to setting in advance the employing set form.
Need to prove, at RN when DeNB reports first kind adjustment information, can report by Radio Resource control (RRC) message of expansion, also can or on new relay base station-Physical Uplink Control Channel (R-PUCCH), transmit by special-purpose medium access control (MAC) signaling.
For example, RN judges in ensuing a period of time according to the variation of local institute's data in buffer or wireless link environment etc., needs to reduce the reception of data on the repeated link, but needs more resources to be used for the transmission of the data on the Radio Link.Then at this moment, RN reports adjustment information to DeNB, opinion stops the transmission of repeated link up-downgoing data on ensuing one or more corresponding repeated link subframes that have been configured as the MBSFN subframe, and this subframe is used for the transmission of RN Radio Link up-downgoing data.
When the adjustment information that reports to DeNB as RN is the second class adjustment information, can report by the RRC message of expansion equally or the MAC signaling by special use reports.If the second class adjustment information that RN reports to DeNB comprises RN and goes up the level of resources utilization and the next contents such as expectation spectrum efficiency that report adjustment cycle of current metadata cache time delay, buffer status, wireless link interface, then DeNB can consider reference according to different priority with these information, for example, can be preferentially with reference to metadata cache time delay of RN etc.
When RN adopts periodic manner when DeNB reports adjustment information, the report cycle according to DeNB sets in advance regularly reports adjustment cycle to get final product to DeNB; And adopt the mode of Event triggered when DeNB reports adjustment information as RN, the downlink data situation of the continuous monitoring wireless LI(link interface) of RN, and the related data of working as the downlink data on the Radio Link that is listened to has been when having surpassed the threshold value that sets in advance, and RN reports MBSFN subframe adjustment information to DeNB.For example, as RN during in monitoring wireless link up-downgoing data, find that the time delay of certain class business has surpassed this professional time delay threshold value that sets in advance, then this moment, RN needed report MBSFN subframe adjustment information to DeNB, wish that DeNB can adjust the MBSFN subframe, reduces this professional time delay.And when RN monitored the average delay of whole RN data or the size of buffer memory etc. above preset threshold, processing method was the same, does not do at this and gives unnecessary details.
Step 1004:DeNB receives the MBSFN subframe adjustment information that RN sends, and according to this adjustment information the MBSFN subframe is adjusted.
In step 1004, if what DeNB received is the first kind adjustment information that RN sends, then DeNB will take all factors into consideration the bandwidth demand of all RN and UE in its administrative area, and in conjunction with desired data message in the first kind adjustment information that RN reported the MBSFN subframe of this RN is adjusted, with the demand of the MBSFN subframe between each RN of balance and the demand of UE moral unicast service bandwidth.
The object lesson that is combined in the step 1003 to be lifted, being RN requires DeNB stopping the transmission of repeated link up-downgoing data on ensuing one or more corresponding repeated link subframes that have been configured as the MBSFN subframe according to snoop results, and this subframe is used for the transmission of RN Radio Link up-downgoing data.DeNB terminates on the corresponding MBSFN subframe and sends data to RN after receiving this message.
And if DeNB receives is the second class adjustment information that RN sends, then DeNB at first calculates the spectrum utilization efficiency of this RN wireless link interface, and with the spectrum utilization efficiency of the repeated link interface of this RN that has calculated relatively, if the spectrum utilization efficiency of repeated link interface of finding this RN is greater than the spectrum utilization efficiency of the wireless link interface of this RN, then under the situation of cache size on this RN of consideration, suitably reduce the Radio Resource on the wireless link interface, and increase the Radio Resource on the repeated link interface; Otherwise, then increase the Radio Resource on the wireless link interface, and reduce the Radio Resource on the repeated link interface.In addition, DeNB also can report according to RN its on the size of downlink data of institute's buffer memory the MBSFN subframe is adjusted.As, when institute's data in buffer has exceeded pre-set threshold on the RN, need to report adjustment information to RN, if the adjustment information that reports shows, the downlink data of the last current institute of RN buffer memory is excessive, then DeNB need reduce the Radio Resource that this RN goes up the repeated link interface, increases the Radio Resource of wireless link interface; Otherwise, then increase the Radio Resource that this RN goes up the repeated link interface, reduce the Radio Resource of wireless link interface.
Step 1005:RN utilizes adjusted MBSFN subframe to carry out the reception of repeated link data and the transmission of data wireless links.
In step 1005, DeNB is after the adjustment of having carried out the MBSFN subframe, RN is when utilizing adjusted MBSFN subframe to carry out the transmission of the reception of repeated link data and data wireless links, can not revise the configuration information of MBSFN subframe in the system message, also can make adaptability revision according to present case to the configuration information of MBSFN subframe in the system message, generally speaking, for reducing network burden, adopt the configuration information of not revising MBSFN subframe in the system message.
A last embodiment is that RN generates corresponding Radio Resource adjustment information and sends to DeNB according to snoop results, carry out the adjustment of Radio Resource between Radio Link and the repeated link according to received Radio Resource adjustment information by DeNB, and the embodiment of the invention also provides a kind of RN directly to carry out the method that Radio Resource is adjusted according to snoop results, this method flow comprises as shown in figure 11:
Step 1101:RN monitors data and/or downlink channel quality in the descending transmission buffer memory on it;
Step 1102: when monitoring result shows that piling up or overflowing appears in data in the descending transmission buffer memory, and/or downlink channel quality is when being lower than the set in advance channel quality that requires to reach, reduce the Radio Resource of repeated link, increase the Radio Resource of Radio Link.
In step 1102, at RN constantly to the data in the descending transmission buffer memory, when downlink channel quality is monitored, judge whether the current channel quality of Radio Link is lower than pre-configured channel quality and/or the descending transmission buffer memory that requires to reach and occurs piling up or overflowing, when judged result show that the current channel quality of Radio Link is lower than in advance to be disposed when requiring the channel quality that reaches and/or the data cached appearance of descending transmission to pile up or overflow, suitably reduce the Radio Resource of repeated link, increase the Radio Resource of Radio Link, be that relay station is abandoned the Data Receiving on the repeated link on the corresponding subframe voluntarily, then on the MBSFN of correspondence subframe, carry out the transmission of data wireless links.
Above-mentioned two embodiment are by carried out the monitoring of channel quality by RN, and Radio Resource is adjusted according to snoop results, in the present embodiment, to provide a kind of by the DeNB monitoring of being correlated with, and carry out the adjustment of Radio Resource according to the result that DeNB listened to, this method step comprises as shown in figure 12:
Step 1201:DeNB monitors the channel conditions of the repeated link of corresponding RN;
In step 1201, DeNB monitors the channel conditions of the repeated link of corresponding RN, for example channel quality of this repeated link, channel transport efficiency etc., and with snoop results as carrying out the main foundation that resource is adjusted.In addition, DeNB also can carry out the auxiliary foundation that Radio Resource is adjusted according to the wireless link condition conduct of institute's data in buffer information and this RN on this RN that RN sent.
Step 1202:DeNB adjusts the Radio Resource between corresponding RN repeated link and the Radio Link according to snoop results;
In step 1202, DeNB is according to the channel quality or the channel transport efficiency of the repeated link of the corresponding RN that is listened to, how decision is adjusted the Radio Resource between corresponding RN repeated link and the Radio Link: for example, to listen to the repeated link channel quality of corresponding RN relatively poor or channel transport efficiency is very high as DeNB, will suitably increase the Radio Resource of this RN repeated link, in the present embodiment, can realize the increase of this RN repeated link Radio Resource by the mode that increase is used to carry out the MBSFN subframe of relay data transmission.Other information of being mentioned in the integrating step 901, DeNB is the wireless link condition of institute's data in buffer information and this RN on this RN with due regard to, and, the Radio Resource between this RN repeated link and the Radio Link is adjusted the repeated link situation of above-mentioned information in conjunction with this RN that is listened to.
Step 1203:DeNB adjusts the result with Radio Resource and sends to corresponding RN.
In step 1203, DeNB finishes after the adjustment to Radio Resource between this RN repeated link and the Radio Link, can adjust the result and adjust this RN of signaling by MBSFN configuration signal or other resources.
Need to prove, RN is behind the resource adjustment result who receives the DeNB transmission, generally speaking, do not carry out the modification of the configuration information of MBSFN subframe in the system message, and only need carry out the reception and the transmission of data according to the configuring condition of the MNSFN subframe that DeNB adjusted.
In addition, the embodiment of the invention also provides a kind of base station, comprises second monitoring unit and the 3rd adjustment unit, and wherein: this second monitoring unit is used for the channel conditions of the repeated link of corresponding relay station is monitored; The 3rd adjustment unit is used for according to the snoop results of this second monitoring unit the repeated link of corresponding relay station and the Radio Resource between the Radio Link being adjusted.
A kind of wireless resource allocation method that the embodiment of the invention provided, by monitoring and the detection of base station to relevant information, and the base station is adjusted to the Radio Resource between relay station repeated link and the Radio Link according to snoop results, so that the Radio Resource between Radio Link and the repeated link obtains comparatively in time, reasonably adjusts, reduce data transmission delay and waste of radio resources.
The embodiment of the invention also provides the 4th kind of method of carrying out radio-resource-configuration, and this method idiographic flow comprises as shown in figure 13:
S1301: be used to carry out the sub-frame of uplink that the downlink data control information is transmitted to user terminal UE configuration, so that UE utilizes described sub-frame of uplink to carry out the transmission of downlink data control information;
In S1301, generally speaking, network side can be by being that UE distributes the On/Off bit on the capable periodically physically control channel, and when UE need carry out the control of downlink data, the On/Off bit that passes through to be distributed carried out the transmission of downlink data control information.
Need to prove that herein network side can be to provide mobile communication serving base station and relay station for this UE.
S1302: receive the downlink data control information that UE sends;
In S1301, can learn, UE need be used to carry out the sub-frame of uplink that the downlink data control information is transmitted to user terminal UE configuration by net, so that the On/Off bit that the transmission network side that UE utilizes described sub-frame of uplink to carry out the downlink data control information is distributed carries out the transmission of downlink data control information, generally, when On/Off bit that UE sent was On, expression needed to reduce the downlink data of this UE; And when On/Off bit that UE sent was Off, expression needed to increase the downlink data of this UE.
S1303: the downlink data of UE is adjusted according to received downlink data control information.
In S 1303,, reduce the downlink data of this UE when network side receives On/Off bit that UE sends when being the On bit; And receive On/Off bit that UE sends when being the Off bit when network side, increase the downlink data of this UE.
A kind of wireless resource allocation method that the embodiment of the invention provided, by ascending resource to UE configuration appointment, make this resource be used for the transmission that UE carries out the downlink data control information, and the downlink data control information that sends according to UE, obtain the current downlink data situation of UE, adjust with downlink data to UE.Thereby make the Radio Resource between Radio Link and the repeated link obtain comparatively in time, reasonably adjust, thereby reduce data transmission delay and reduce waste of radio resources
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 (Read-Only Memory, read-only storage memory body), RAM (RandomAccess Memory stores memory body at random), magnetic disc or CD.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (21)
1. a wireless resource allocation method is characterized in that, comprising:
The present situation of Radio Link or the current data in the buffer memory are monitored;
According to snoop results the Radio Resource between Radio Link and the repeated link is adjusted; Perhaps,
Send the Radio Resource adjustment information according to the snoop results of being obtained to the base station, so that described base station is adjusted the Radio Resource between Radio Link and the repeated link according to the Radio Resource adjustment information.
2. method according to claim 1 is characterized in that, describedly according to snoop results the Radio Resource between Radio Link and the repeated link is adjusted, and comprising:
Judge whether the current channel quality of described Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, judge whether descending transmission buffer memory data stacking occurs or overflow, when the current channel quality of described Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, when descending transmission buffer memory data stacking occurs or overflows, then reduce the Radio Resource of described repeated link, increase the Radio Resource of described Radio Link.
3. method according to claim 1 is characterized in that, describedly sends the Radio Resource adjustment information according to the snoop results of being obtained to the base station, comprising:
Send according to snoop results generation first kind Radio Resource adjustment information and to described base station, described first kind Radio Resource adjustment information comprises air-link resources or the repeated link resource that described relay station expectation is obtained.
4. method according to claim 1 is characterized in that, describedly sends the Radio Resource adjustment information according to the snoop results of being obtained to the base station, comprising:
Generate the second class Radio Resource adjustment information and send to described base station according to snoop results, the described second class Radio Resource adjustment information comprises described relay station air-link resources utilization ratio, data cached time delay and data cached state.
5. according to claim 3 or 4 described methods, it is characterized in that, describedly send the Radio Resource adjustment information to described base station, comprising according to the snoop results of being obtained:
Adopt periodic manner or Event triggered mode to send the Radio Resource adjustment information according to the snoop results of being obtained to described base station.
6. according to each described method in the claim 1 to 4, it is characterized in that described Radio Resource comprises: multimedia broadcast multi-broadcasting business single frequency network MBSFN subframe.
7. a wireless resource allocation method is characterized in that, comprising:
Receive the Radio Resource adjustment information that relay station sends;
According to received Radio Resource adjustment information the Radio Resource between Radio Link and the repeated link is adjusted.
8. method according to claim 7, it is characterized in that, when described Radio Resource adjustment information is first kind Radio Resource adjustment information, describedly Radio Resource between Radio Link and the repeated link is adjusted according to received Radio Resource adjustment information, comprising:
According to described first kind Radio Resource adjustment information, and the Radio Link of described relay station and the Radio Resource between the repeated link are adjusted in conjunction with the cache information of described relay station;
Wherein, described first kind Radio Resource adjustment information comprises air-link resources or the repeated link resource that described relay station expectation is obtained.
9. method according to claim 7, it is characterized in that, when described Radio Resource adjustment information is the second class Radio Resource adjustment information, describedly Radio Resource between Radio Link and the repeated link is adjusted according to received Radio Resource adjustment information, comprising:
According to the described second class Radio Resource adjustment information, and the repeated link wireless resource information between combination and the described relay station is adjusted the Radio Resource between described relay station Radio Link and the repeated link;
Wherein, the described second class Radio Resource adjustment information comprises described relay station air-link resources utilization ratio, data cached time delay and data cached state.
10. according to each described method in the claim 7 to 9, it is characterized in that described Radio Resource comprises: multimedia broadcast multi-broadcasting business single frequency network MBSFN subframe.
11. a radio-resource-configuration system is characterized in that, comprising: relay station and base station, wherein,
Described relay station is used for the present situation of Radio Link or the current data of buffer memory are monitored; And the Radio Resource between Radio Link and the repeated link is adjusted according to snoop results; Perhaps, send the Radio Resource adjustment information according to the snoop results of being obtained to the base station;
Described base station is used for according to the Radio Resource adjustment information Radio Resource between Radio Link and the repeated link being adjusted.
12. a relay station is characterized in that, comprising: the monitoring unit and first adjustment unit, perhaps, monitoring unit and transmitting element, wherein,
Described monitoring unit is used for the present situation of Radio Link or the current data of buffer memory are monitored;
Described first adjustment unit is used for according to snoop results the Radio Resource between Radio Link and the repeated link being adjusted.
13. relay station according to claim 12 is characterized in that, described first adjustment unit comprises:
Judgment sub-unit is used to judge whether the current channel quality of described Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, be used to judge whether descending transmission buffer memory occurs piling up or overflowing;
First adjusts subelement, when the current channel quality of described Radio Link is lower than the pre-configured channel quality that reaches of requiring, and/or, when the data cached appearance of descending transmission is piled up or is overflowed, be used to reduce the Radio Resource of described repeated link, increase the Radio Resource of described Radio Link.
14. a relay station is characterized in that, comprising: monitoring unit, generation unit and transmitting element, wherein,
Described monitoring unit is used for the present situation of Radio Link or the current data of buffer memory are monitored;
Described generation unit is used for the snoop results obtained according to monitoring unit, generates the Radio Resource adjustment information;
Described transmitting element is used for sending the Radio Resource adjustment information that generation unit generates to the base station, so that described base station is adjusted the Radio Resource between Radio Link and the repeated link according to the Radio Resource adjustment information.
15. relay station according to claim 14 is characterized in that, described generation unit comprises that first generates subelement, perhaps second generates subelement, perhaps first generates the combination that subelement and second generates subelement, wherein,
Described first generates subelement, is used for generating first kind Radio Resource adjustment information according to snoop results, and described first kind Radio Resource adjustment information comprises air-link resources or the repeated link resource that described relay station expectation is obtained;
Second generates subelement, is used for generating the second class Radio Resource adjustment information according to snoop results, and the described second class Radio Resource adjustment information comprises described relay station air-link resources utilization ratio, data cached time delay and data cached state.
16. a base station is characterized in that, comprising: the receiving element and second adjustment unit, wherein,
Described receiving element is used to receive the Radio Resource adjustment information that relay station sends;
Described second adjustment unit is used for according to the received Radio Resource adjustment information of receiving element the Radio Resource between Radio Link and the repeated link being adjusted.
17. base station according to claim 16 is characterized in that, described second adjustment unit comprises that second adjusts subelement, perhaps the 3rd adjusts subelement, perhaps second adjusts the combination that subelement and the 3rd is adjusted subelement, wherein,
Described second adjusts subelement, when received Radio Resource adjustment information is first kind Radio Resource adjustment information, be used for according to described first kind Radio Resource adjustment information, and the Radio Link of described relay station and the Radio Resource between the repeated link adjusted in conjunction with the cache information of described relay station; Perhaps,
The described the 3rd adjusts subelement, when received Radio Resource adjustment information is the second class Radio Resource adjustment information, be used for according to the described second class Radio Resource adjustment information, and the repeated link wireless resource information between combination and the described relay station is adjusted the Radio Resource between described relay station Radio Link and the repeated link.
18. a wireless resource allocation method is characterized in that, comprising:
Be used to carry out the sub-frame of uplink that the downlink data control information is transmitted to user terminal UE configuration, so that UE utilizes described sub-frame of uplink to carry out the transmission of downlink data control information;
Receive the downlink data control information that UE sends;
According to received downlink data control information the downlink data of UE is adjusted.
19. method according to claim 18 is characterized in that, the described sub-frame of uplink that is used to carry out downlink data control information transmission to the UE configuration comprises:
Be that UE distributes On or Off bit on the capable periodically physically control channel.
20. method according to claim 19 is characterized in that, the downlink data control information that described reception UE sends comprises:
Receive the On or the Off bit that are sent on the capable physically control channel of UE.
21. method according to claim 20 is characterized in that, describedly according to received downlink data control information the downlink data of UE is adjusted, and comprising:
When receiving UE when going the On bit that sends on the control channel physically, reduce the downlink data of described UE;
When receive UE go physically the Off that sends on the control channel than the time, increase the downlink data of described UE.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910174562.7A CN102036382B (en) | 2009-09-30 | 2009-09-30 | Method, system and device for allocating wireless resources |
| PCT/CN2010/077453 WO2011038679A1 (en) | 2009-09-30 | 2010-09-29 | Method, system and device for wireless resource allocation |
| BR112012009372A BR112012009372A2 (en) | 2009-09-30 | 2010-09-29 | method, system, and apparatus for setting radio features |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910174562.7A CN102036382B (en) | 2009-09-30 | 2009-09-30 | Method, system and device for allocating wireless resources |
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| CN102036382A true CN102036382A (en) | 2011-04-27 |
| CN102036382B CN102036382B (en) | 2014-09-03 |
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| CN200910174562.7A Active CN102036382B (en) | 2009-09-30 | 2009-09-30 | Method, system and device for allocating wireless resources |
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| CN (1) | CN102036382B (en) |
| BR (1) | BR112012009372A2 (en) |
| WO (1) | WO2011038679A1 (en) |
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| CN109565671A (en) * | 2018-11-16 | 2019-04-02 | 北京小米移动软件有限公司 | Data transmission method and device |
| CN110149699A (en) * | 2018-02-11 | 2019-08-20 | 成都华为技术有限公司 | A kind of resource allocation method and node |
| CN111527764A (en) * | 2018-01-19 | 2020-08-11 | 富士通株式会社 | Method, device and communication system for receiving and sending configuration information |
| CN112218339A (en) * | 2020-09-30 | 2021-01-12 | 三维通信股份有限公司 | Relay transmission scheduling method and device, storage medium and electronic equipment |
| CN112514467A (en) * | 2018-08-06 | 2021-03-16 | 华为技术有限公司 | Method, device and base station for reducing same frequency interference |
| CN114828152A (en) * | 2021-01-22 | 2022-07-29 | 展讯通信（上海）有限公司 | System information updating method and device, relay equipment, terminal and storage medium |
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Also Published As
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| CN102036382B (en) | 2014-09-03 |
| WO2011038679A1 (en) | 2011-04-07 |
| BR112012009372A2 (en) | 2016-06-07 |
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