CN101389113A - Method for allocating radio resource to relays - Google Patents
Method for allocating radio resource to relays Download PDFInfo
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- CN101389113A CN101389113A CNA200710151519XA CN200710151519A CN101389113A CN 101389113 A CN101389113 A CN 101389113A CN A200710151519X A CNA200710151519X A CN A200710151519XA CN 200710151519 A CN200710151519 A CN 200710151519A CN 101389113 A CN101389113 A CN 101389113A
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Abstract
The invention provide a method for distributing radio resource to relays, comprising that after finishing base station access of the relay, the base station distributes radio resource for the relay to communicate with terminals to the relay; the relay transmits radio resource request and channel condition between base stations to the base station thereafter; according to the channel condition and received radio resource request, the base station reserves a part of the radio resource to the relay for communication between the base station and the relay. Adopting the technical scheme, the base station regulates radio resource reserved to the relay based on load condition of the relay and measurement information of the relay, so that QoS of the terminal controlled by the relay is effectively guaranteed, meanwhile resource is fully coordinated, and frequency spectrum utilization is improved.
Description
Technical field
The present invention relates to a kind ofly, be specifically related to a kind of base station (BS:Base Station) is used in the Radio Resource of communicating by letter between base station and the relay station to the relay station branch method in the communication system that contains relay station (RS:Relay Station).
Background technology
Evolution and development of Communication Technique along with network, the mobile communication system of a new generation must can support 100Mbps (Mbps: MBPS) transmission quality that Yi Shang all-IP high-speed packet data transmission, the high terminal mobility of support, support are high, high spectrum efficiency and power efficiency is provided, and can effectively be supported in the variation of great dynamic ranges such as user data rate, user capacity, service quality and translational speed.Aspect the wide area covering, because blocking of shadow fading and building, base station in the legacy single hop network can't cover each place, therefore, can improve the covering and the capacity of system by the RS technology, real realization wide area covers continuously, and therefore, the RS technology also will be the class core technology in the third generation mobile communication system.
The main focus of prior art is that BS distributes to the RS Radio Resource, be used for the terminal that the RS scheduling belongs to this RS, and the Radio Resource that RS communicates by letter with BS just distributes when having only both formally to communicate by letter, therefore the Radio Resource of not remaining for both communication in advance for RS before communication, business QoS (service quality) end to end can be affected.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of giving the relay station distributing radio resource, to overcome base station in the prior art because the Radio Resource that does not remain for relay station and base station communication in advance influences the business problem of QoS end to end.
In order to address the above problem, the invention provides a kind of method of giving the relay station distributing radio resource, comprising:
After the A relay station was finished access with the base station, the base station was used in the Radio Resource of relay station and terminal communication to the relay station branch;
The B relay station to the base station send radio resource request and and the base station between channel condition;
Described step B also comprises: the base station is used for communicating by letter of base station and relay station according to described channel condition and the radio resource request reserved part Radio Resource received to relay station.
Further, relay station also sends metrical information to the base station simultaneously to base station transmits control signaling and data after the described step B, and the Radio Resource of keeping for relay station is adjusted after receiving described metrical information in the base station.
Further, among the described step B, relay station sends radio resource request to the base station and is meant: relay station divides into groups the service access information that the terminal of receiving is sent by service priority, the business of same priority is put into same group, and according to the assurance bit rate of each business and activate the traffic carrying capacity that probability calculation draws every group of business, the traffic carrying capacity of each group that will calculate again and the priority of this group report the base station.
Further, among the described step B, the base station is meant to relay station according to described channel condition and the radio resource request reserved part Radio Resource received: after described radio resource request is received in the base station, the modulation coding mode that decision is adopted according to channel condition, calculate every group of required reserved radio resource of priority service according to the traffic carrying capacity and the modulation coding mode that report again, its summation is the required Radio Resource of relay station, when the current usable radio resources in base station during more than or equal to the required Radio Resource of relay station, its required Radio Resource is reserved to relay station in the base station; When the current usable radio resources in base station during less than the required Radio Resource of relay station, the professional required Radio Resource that priority is higher than predetermined threshold value is only reserved to relay station in the base station.
Further, among the described step B, if the service access information applications that relay station is not received terminal, relay station does not then send radio resource request to the base station, and the base station remains for the Radio Resource of communicating by letter with relay station in the base station therefore for relay station in advance.
Further, described relay station sends metrical information for periodically sending or the transmission of Event triggered ground to the base station.
Further, described metrical information comprises each traffic carrying capacity and priority, buffer status and the relay station of this group and channel condition between the base station of organizing of the grouping according to priority of relay station current time.
Further, described Event triggered ground transmission metrical information comprises: the traffic carrying capacity of the Radio Resource application that the relay station current time is received sends when surpassing predetermined threshold value; The traffic carrying capacity of the buffer area of relay station sends when surpassing predetermined threshold value; The relay station current time is received the business that need transmit immediately, and this moment relay station amount of radio resources send when being not enough to support the transmission of described business.
Further, after the metrical information that relay station sends is received in described base station, the traffic carrying capacity stack of same priority will be had in each priority service corresponding service amount of current time and the buffer area, calculate total traffic carrying capacity of this priority, and the modulation coding mode that decision is adopted according to channel condition, total traffic carrying capacity and modulation coding mode according to each priority service calculates the required Radio Resource of this group priority service again, and the current required reservation Radio Resource of relay station is promptly respectively organized professional required Radio Resource sum, when if the base station present load does not surpass default threshold value, the base station then replenishes to be reserved the current Radio Resource that lacks of relay station or discharges the current unnecessary Radio Resource of keeping for relay station; When if the base station present load surpasses default threshold value, the base station replenishes the corresponding Radio Resource that lacks of reservation to the business that priority is higher than higher limit, and discharges the corresponding Radio Resource of having kept for the lower business of priority.
In sum, the invention provides a kind of method of giving the relay station distributing radio resource, BS can keep for the Radio Resource of RS according to the loading condition adjustment of RS, and keep for the Radio Resource of RS according to the metrical information adjustment of RS, thereby the QoS of the terminal of RS control can be effectively guaranteed, simultaneously can coordinate resource fully again, improve the availability of frequency spectrum of system.
Description of drawings
Fig. 1 is the process chart of the specific embodiment of the invention.
Embodiment
Present embodiment provides a kind of method to the relay station distributing radio resource, and as shown in Figure 1, its handling process is as follows:
Step 101: after relay station powers up, obtain the down-going synchronous with the base station, initiate to insert request to the base station, receive the affirmation of base station when relay station after, insert successfully;
Step 102: it is mutual that initialization signaling is carried out in relay station and base station, and the channel condition between base station and the relay station sent to the base station, the base station distributes corresponding radio resource to give relay station according to initialization signaling alternately, is used for it and is free to arrange scheduling, promptly is used for communicating by letter of relay station and its terminal room; Give the same prior art of method of relay station distributing radio resource herein.
Wherein initialization signaling comprises alternately: the capability negotiation of relay station and base station, information such as geographical position.
Step 103: the service access information applications that relay station is sent the terminal of receiving send to the base station in the mode of radio resource request, be that the service access information that relay station is sent the terminal of receiving is divided into groups by service priority, the business of same priority is put into same group, and according to the assurance bit rate of each business and activate the traffic carrying capacity that probability calculation draws every group of business, the traffic carrying capacity of each group that will calculate again and the priority of this group report the base station; The same prior art of the method for computing service amount.Wherein the service access information applications comprise: the Radio Resource application of terminal traffic and this professional QoS (QoS comprises professional priority).
Base station and the channel condition between the relay station that send according to this radio resource request and relay station the base station are given relay station reserved part Radio Resource, are used for communicating by letter of base station and relay station---and be that relay station is to the base station transmits data and control signaling; Concrete operations are: the base station modulation coding mode that decision is adopted according to channel condition, calculate every group of required reserved radio resource of priority service according to the traffic carrying capacity and the modulation coding mode that report again, its summation is the required Radio Resource of relay station, when the current usable radio resources in base station during more than or equal to the required Radio Resource of relay station, its required Radio Resource is reserved to relay station in the base station; When the current usable radio resources in base station during less than the required Radio Resource of relay station, higher priority business is only given in the base station, the business that is higher than certain predetermined threshold value as priority is reserved its required Radio Resource, at this moment, it is these higher priority business that the Radio Resource of relay station is kept in the base station, is higher than the professional required Radio Resource of certain predetermined threshold value as priority.
If the service access information applications of not receiving terminal after relay station powers on, relay station then do not send radio resource request to the base station, the base station remains for the Radio Resource of communicating by letter with relay station in the base station therefore for relay station in advance.
Step 104: relay station begins to base station transmits control signaling and data.
Step 105: when ensureing the initial resource request or the normal transmission of initial service, relay station can also send metrical information to the base station, relay station is pressed the service priority grouping with current time to the business of its application Radio Resource, and calculates the traffic carrying capacity of each group; Metrical information comprises: traffic carrying capacity and priority, buffer status and the base station of this group and the channel condition between the relay station of pressing each group of service priority grouping.
This metrical information can be periodically to send, and also can be that Event triggered ground sends.Event triggered ground transmission metrical information comprises a kind of or its combination in any in the following situation: send when the traffic carrying capacity of the Radio Resource application that the relay station current time is received is a lot, send when presetting certain threshold value as surpassing; The traffic carrying capacity of the buffer area of relay station sends when surpassing certain default threshold value; The relay station current time is received the business that need transmit immediately, and this moment relay station amount of radio resources send when being not enough to support the transmission of described business.For example:,, then should send metrical information to the base station immediately if this moment, relay station did not have enough Radio Resources to support the transmission of this business for the Radio Resource application of the business of special delay sensitive.
Step 106: the Radio Resource of relay station is kept in the base station according to the metrical information adjustment of receiving:
The Radio Resource that relay station is kept for according to the service priority and the channel condition adjustment between base station and relay station of its current loading condition, Radio Resource application in the base station; That is: the base station will have the traffic carrying capacity stack of same priority in each priority service corresponding service amount of current time that receive and the relay station buffer area, calculate total traffic carrying capacity of this priority, and the modulation coding mode that decision is adopted according to channel condition, total traffic carrying capacity and modulation coding mode according to each priority service calculates the required Radio Resource of this group priority service again, and the current required reservation Radio Resource of relay station is promptly respectively organized professional required Radio Resource sum, if the base station present load is not high, when not surpassing certain default threshold value, the base station then replenishes to be reserved the current Radio Resource that lacks of relay station or discharges the current unnecessary Radio Resource of keeping for relay station; If the base station present load is higher, when surpassing certain default threshold value, higher priority business is given in the base station, the business that is higher than certain higher limit as priority is replenished the reservation corresponding radio resource, the i.e. Radio Resource that is lacked, and discharge the corresponding Radio Resource of having kept for the lower business of priority, be lower than the business of certain lower limit as priority, such as beginning to discharge from the minimum business of priority, the object of selecting to discharge that how much reaches that discharges resource can be decided according to actual conditions, how much can be the high part that business lacked of priority as what discharge resource.
Claims (9)
1, a kind of method of giving the relay station distributing radio resource comprises:
After the A relay station was finished access with the base station, the base station was used in the Radio Resource of relay station and terminal communication to the relay station branch;
The B relay station to the base station send radio resource request and and the base station between channel condition;
It is characterized in that described step B also comprises: the base station is used for communicating by letter of base station and relay station according to described channel condition and the radio resource request reserved part Radio Resource received to relay station.
2, the method for claim 1 is characterized in that, relay station also sends metrical information to the base station simultaneously to base station transmits control signaling and data after the described step B, and the Radio Resource of keeping for relay station is adjusted after receiving described metrical information in the base station.
3, the method for claim 1, it is characterized in that, among the described step B, relay station sends radio resource request to the base station and is meant: relay station divides into groups the service access information that the terminal of receiving is sent by service priority, the business of same priority is put into same group, and according to the assurance bit rate of each business and activate the traffic carrying capacity that probability calculation draws every group of business, the traffic carrying capacity of each group that will calculate again and the priority of this group report the base station.
4, method as claimed in claim 3, it is characterized in that, among the described step B, the base station is meant to relay station according to described channel condition and the radio resource request reserved part Radio Resource received: after described radio resource request is received in the base station, the modulation coding mode that decision is adopted according to channel condition, calculate every group of required reserved radio resource of priority service according to the traffic carrying capacity and the modulation coding mode that report again, its summation is the required Radio Resource of relay station, when the current usable radio resources in base station during more than or equal to the required Radio Resource of relay station, its required Radio Resource is reserved to relay station in the base station; When the current usable radio resources in base station during less than the required Radio Resource of relay station, the professional required Radio Resource that priority is higher than predetermined threshold value is only reserved to relay station in the base station.
5, method as claimed in claim 4, it is characterized in that, among the described step B, if the service access information applications that relay station is not received terminal, relay station does not then send radio resource request to the base station, and the base station remains for the Radio Resource of communicating by letter with relay station in the base station therefore for relay station in advance.
6, method as claimed in claim 2 is characterized in that, described relay station sends metrical information for periodically sending or the transmission of Event triggered ground to the base station.
As claim 2 or 6 described methods, it is characterized in that 7, described metrical information comprises each traffic carrying capacity and priority, buffer status and the relay station of this group and channel condition between the base station of organizing of the grouping according to priority of relay station current time.
8, method as claimed in claim 6 is characterized in that, described Event triggered ground sends metrical information and comprises: the traffic carrying capacity of the Radio Resource application that the relay station current time is received sends when surpassing predetermined threshold value; The traffic carrying capacity of the buffer area of relay station sends when surpassing predetermined threshold value; The relay station current time is received the business that need transmit immediately, and this moment relay station amount of radio resources send when being not enough to support the transmission of described business.
9, method as claimed in claim 8, it is characterized in that, after the metrical information that relay station sends is received in described base station, the traffic carrying capacity stack of same priority will be had in each priority service corresponding service amount of current time and the buffer area, calculate total traffic carrying capacity of this priority, and the modulation coding mode that decision is adopted according to channel condition, total traffic carrying capacity and modulation coding mode according to each priority service calculates the required Radio Resource of this group priority service again, and the current required reservation Radio Resource of relay station is promptly respectively organized professional required Radio Resource sum, when if the base station present load does not surpass default threshold value, the base station then replenishes to be reserved the current Radio Resource that lacks of relay station or discharges the current unnecessary Radio Resource of keeping for relay station; When if the base station present load surpasses default threshold value, the base station replenishes the corresponding Radio Resource that lacks of reservation to the business that priority is higher than higher limit, and discharges the corresponding Radio Resource of having kept for the lower business of priority.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710151519XA CN101389113B (en) | 2007-09-14 | 2007-09-14 | Method for allocating radio resource to relays |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710151519XA CN101389113B (en) | 2007-09-14 | 2007-09-14 | Method for allocating radio resource to relays |
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| Publication Number | Publication Date |
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| CN101389113A true CN101389113A (en) | 2009-03-18 |
| CN101389113B CN101389113B (en) | 2012-07-18 |
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| CN200710151519XA Expired - Fee Related CN101389113B (en) | 2007-09-14 | 2007-09-14 | Method for allocating radio resource to relays |
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| WO2010118581A1 (en) * | 2009-04-17 | 2010-10-21 | 华为技术有限公司 | Method, device and system for processing information |
| CN101873642A (en) * | 2009-04-24 | 2010-10-27 | 大唐移动通信设备有限公司 | Method and device for reporting transmission buffering state of relay node |
| WO2010135995A1 (en) * | 2009-05-29 | 2010-12-02 | Huawei Technologies Co., Ltd. | System and method for relay node flow control in a wireless communications system |
| WO2011020241A1 (en) * | 2009-08-19 | 2011-02-24 | 上海贝尔股份有限公司 | Method and corresponding device for scheduling downlink radio resources |
| CN101998495A (en) * | 2009-08-26 | 2011-03-30 | 中兴通讯股份有限公司 | Method for reporting air interface congestion condition and relay node |
| WO2011038679A1 (en) * | 2009-09-30 | 2011-04-07 | 华为技术有限公司 | Method, system and device for wireless resource allocation |
| WO2011041975A1 (en) * | 2009-10-08 | 2011-04-14 | 中兴通讯股份有限公司 | Method and apparatus for feeding back channel quality indicator of uplink access link |
| WO2011094926A1 (en) * | 2010-02-02 | 2011-08-11 | Nokia Corporation | Methods and apparatuses for resource mapping for multiple transport blocks over wireless backhaul link |
| CN103312726A (en) * | 2013-07-08 | 2013-09-18 | 东南大学 | End-to-end communication method applicable to wireless local area network |
| 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 |
| WO2020146964A1 (en) * | 2019-01-14 | 2020-07-23 | Qualcomm Incorporated | Scheduling of multiple transport blocks for grant-free uplink transmission |
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| WO2006023771A2 (en) * | 2004-08-18 | 2006-03-02 | Motorola, Inc. | Method and apparatus for transparent relaying |
| CN101001098B (en) * | 2006-01-12 | 2010-07-14 | 华为技术有限公司 | Method for converting downlink signal from repeater and its equipment |
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- 2007-09-14 CN CN200710151519XA patent/CN101389113B/en not_active Expired - Fee Related
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| CN102440024A (en) * | 2009-05-29 | 2012-05-02 | 华为技术有限公司 | System and method for relay node flow control in a wireless communications system |
| WO2010135995A1 (en) * | 2009-05-29 | 2010-12-02 | Huawei Technologies Co., Ltd. | System and method for relay node flow control in a wireless communications system |
| CN102440024B (en) * | 2009-05-29 | 2014-03-05 | 华为技术有限公司 | System and method for relay node flow control in wireless communications system |
| US8576714B2 (en) | 2009-05-29 | 2013-11-05 | Futurewei Technologies, Inc. | System and method for relay node flow control in a wireless communications system |
| JP2012528494A (en) * | 2009-05-29 | 2012-11-12 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | System and method for relay node flow control in a wireless communication system |
| WO2011020241A1 (en) * | 2009-08-19 | 2011-02-24 | 上海贝尔股份有限公司 | Method and corresponding device for scheduling downlink radio resources |
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| CN102035631A (en) * | 2009-10-08 | 2011-04-27 | 中兴通讯股份有限公司 | Feedback method and device for uplink access link channel quality instruction |
| WO2011041975A1 (en) * | 2009-10-08 | 2011-04-14 | 中兴通讯股份有限公司 | Method and apparatus for feeding back channel quality indicator of uplink access link |
| CN102035631B (en) * | 2009-10-08 | 2014-12-10 | 中兴通讯股份有限公司 | Feedback method and device for uplink access link channel quality instruction |
| WO2011094926A1 (en) * | 2010-02-02 | 2011-08-11 | Nokia Corporation | Methods and apparatuses for resource mapping for multiple transport blocks over wireless backhaul link |
| CN103312726A (en) * | 2013-07-08 | 2013-09-18 | 东南大学 | End-to-end communication method applicable to wireless local area network |
| 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 |
| WO2020146964A1 (en) * | 2019-01-14 | 2020-07-23 | Qualcomm Incorporated | Scheduling of multiple transport blocks for grant-free uplink transmission |
| WO2022068192A1 (en) * | 2020-09-30 | 2022-04-07 | 三维通信股份有限公司 | Relay transmission scheduling method and apparatus, storage medium, and electronic device |
| WO2022238246A1 (en) | 2021-05-11 | 2022-11-17 | Continental Automotive Technologies GmbH | Method for relay selection based on composite multi-interface load metric |
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| WO2023006546A1 (en) | 2021-07-26 | 2023-02-02 | Continental Automotive Technologies GmbH | Method for ue-to-ue relaying resource management |
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