CN101860961B - Method and equipment for paging relay node system - Google Patents
Method and equipment for paging relay node system Download PDFInfo
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- CN101860961B CN101860961B CN2009100814668A CN200910081466A CN101860961B CN 101860961 B CN101860961 B CN 101860961B CN 2009100814668 A CN2009100814668 A CN 2009100814668A CN 200910081466 A CN200910081466 A CN 200910081466A CN 101860961 B CN101860961 B CN 101860961B
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Abstract
The invention provides a method for paging a relay node system. The method comprises the steps that: a base station receives a paging message from a mobile management entity MME; the base station selects time frequency domain resource information which transmits the paging message, and transmits the paging message and the time frequency domain resource information to a relay node; and the base station and the relay node transmit the paging message on the time frequency domain resource. The invention also provides base station equipment. Due to the technical scheme provided by the invention, the problem that RN and BS coordinate in the system for realizing the paging is solved. By introducing the RN in a cellular network, the cell edge coverage can be improved, and the cell throughput can be improved.
Description
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to a kind of paging method and equipment of relay node.
Background technology
Move the developing direction that becomes modern communication technology with the broadband; 3GPP (3rd GenerationPartnership Project; Third generation partner program) is devoted to LTE (Long TermEvolution; Long Term Evolution) system is as the evolution of 3G system, and target is that development 3GPP wireless access technology is towards high data rate, the low delay and the evolution of optimization packet data application direction.At the GSM in future, for example among back three generations (B3G:Beyond three Generation) or the LTE-A, system will provide higher peak data rate and cell data throughput, so system also needs wideer transmission bandwidth.At present the unappropriated radio frequency resources below the 2GHz seldom, the part or all of bandwidth that the B3G system needs can only for example be sought on the frequency more than the 3GHz on higher frequency range.Frequency range is high more, and it is fast more that radio wave propagation is decayed, and transmission range is short more, therefore under the condition of same overlay area, guarantee continuous covering, needs more base station.Because the base station is the higher cost of cost usually, this can increase the cost of arranging net of communication system undoubtedly.In order to reduce the cost of arranging net, each manufacturer and standardization body begin one's study RN (Relay Node, via node) are incorporated in the cellular system, hope that the signal of ability expanding system covers and increase the capacity of system.Because via node RN only realizes simple data processing function usually, so the cost cost is lower than the base station, reasonably uses RN to arrange net, and can reach the purpose that reduces the cost of arranging net.
As shown in Figure 1, be the sketch map of the SNA that comprises RN.Among the figure, BS representes the base station, and RN representes wireless relay nodes.As shown in Figure 1, RN is except can the Extended Cell edges cover, RN1 for example, and RN also can increase capacity, for example is positioned at the RN2 in the middle of the sub-district, and solves the shadow region and communicates by letter, for example RN3.
For the subscriber equipment under the RN, what RN realized is the function of BS.Yet, at present for the system that has RN and BS simultaneously, do not provide the paging mechanism of collaborative work between RN and the BS, be unfavorable for improving the covering power and the paging success rate of the paging of system.Therefore be necessary to propose a kind of technical scheme, the mechanism of collaborative work realization paging how when having RN and BS simultaneously in the resolution system.
Summary of the invention
The object of the invention is intended to solve at least RN and BS collaborative work in one of above-mentioned technological deficiency, particularly resolution system, realizes the problem of paging.
For achieving the above object, one aspect of the present invention has proposed a kind of paging method of relay node, may further comprise the steps: the base station is from MME (Mobility Management Entity, Mobility Management Entity) paging receiving message; The time-frequency domain resources information of sending said beep-page message is selected in said base station, and sends said beep-page message and said time-frequency domain resources information to via node; Said base station and said via node send said beep-page message on said time-frequency domain resources.
According to embodiments of the invention, said time-frequency domain resources is the physical resource on the PDSCH (Physical DownlinkShared Channel, Physical Shared Channel).
According to embodiments of the invention, the physical resource on the said Physical Shared Channel PDSCH is indicated through the dispatch that is designated paging P-RNTI (Radio Network Temporary Identifier, Radio Network Temporary Identifier) on the shared control channel.
According to embodiments of the invention, send said beep-page message and said dispatch said base station in same descending sub frame.
According to embodiments of the invention; The selected time-frequency domain resources information of sending said beep-page message in said base station may further comprise the steps: said base station is according to DRX (Discontinuous Reception; Discontinuous reception) parameter, PF (Paging Frame; Paging frame) and the computing formula of PO (Paging Occasion, paging occasion) calculate and can send the PO of paging; The propagation delay time of said base station to via node calculated in said base station, finds an immediate descending sub frame that can send paging according to said propagation delay time, and confirms that this descending sub frame is for sending the subframe of said beep-page message.
According to embodiments of the invention, subscriber equipment receives the said beep-page message from said base station and/or the transmission of said via node.
The present invention has also proposed a kind of base station equipment on the other hand, comprising:
Receiver module, said receiver module are used for the beep-page message that receiving mobility management entity MME sends; Select module, said selection module is used for selected time-frequency domain resources information of sending said beep-page message; Sending module, said sending module sends said beep-page message and said time-frequency domain resources information to via node, and sends said beep-page message to subscriber equipment.
According to embodiments of the invention, said selection module also comprises computing module,
Said computing module calculates according to the computing formula of discontinuous reception DRX parameter, paging frame PF and paging occasion PO can send the PO of paging;
The said base station of said calculating is found an immediate descending sub frame that can send paging to the propagation delay time of via node according to said propagation delay time, and confirms that this descending sub frame is for sending the subframe of said beep-page message.
According to embodiments of the invention; Said time-frequency domain resources is the physical resource on the Physical Shared Channel PDSCH, and the physical resource on the said Physical Shared Channel PDSCH is indicated through the dispatch that is designated pager wireless net network temporary mark P-RNTI on the shared control channel.
According to embodiments of the invention, said base station equipment is sent said beep-page message and said dispatch in same descending sub frame.
The technical scheme that proposes according to the present invention has solved the problem of RN and BS collaborative work, realization paging in the system.Through in cellular network, introducing RN, can improve cell edge and cover, improve cell throughout.The technical scheme that the present invention proposes helps improving the coverage rate of communication system pages and the success rate of paging.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simply, efficiently helping the elevator system performance.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the sketch map that comprises the SNA of RN;
Fig. 2 is the flow chart of the paging method of relay node;
Fig. 3 is the sketch map of beep-page message and dispatch transmission;
Fig. 4 monitors the sketch map of beep-page message for UE;
Fig. 5 is the structural representation of base station equipment.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention proposes a kind of paging method of relay node, may further comprise the steps: the base station is from Mobility Management Entity MME paging receiving message; The time-frequency domain resources information of sending said beep-page message is selected in said base station, and sends said beep-page message and said time-frequency domain resources information to via node; Said base station and said via node send said beep-page message on said time-frequency domain resources.
As shown in Figure 2, the flow chart of the paging method of the relay node that proposes for the present invention may further comprise the steps:
S101: the base station is from Mobility Management Entity MME paging receiving message.
In step S101, the base station is at first from Mobility Management Entity MME paging receiving message, and this beep-page message is the message of subscriber equipment in system's service of issuing.In the LTE system, beep-page message is one group of RRC (Radio Resource Control, Radio Resource control) message, passes through PCCH (Paging Control Channel, Paging Control Channel) notifying user equipment by the base station.
For RN in the resolution system and BS collaborative work, realize the problem of paging simultaneously, this beep-page message is not directly sent in the base station at once, but with the RN cooperation, realize paging simultaneously, thereby improve the coverage rate of communication system pages and the success rate of paging.
S102: the selected time-frequency domain resources information of sending beep-page message in base station, and to via node transmission beep-page message and time-frequency domain resources information.
For RN in the realization system and BS collaborative work, realize paging simultaneously; In step S102; The moment of this beep-page message need be confirmed to send in the base station, corresponding to the corresponding time-frequency domain resources of carrying this beep-page message, is specially the corresponding timeslice in certain sub-frame of physical channel.
As embodiments of the invention, be example to apply the present invention to the LTE system, for example, the time-frequency domain resources of carrying this beep-page message is the physical resource on the Physical Shared Channel PDSCH.
Particularly, the physical resource on the Physical Shared Channel PDSCH is indicated through the dispatch that is designated pager wireless net network temporary mark P-RNTI on the shared control channel.
Wherein, send beep-page message and dispatch the base station in same descending sub frame.As shown in Figure 3, be the sketch map of beep-page message and dispatch transmission.For RN, can not send dispatch during paging, can be directly the time-frequency domain of indication in the base station send beep-page message and get final product, UE can receive according to the time-frequency position of base station indication, because the time-frequency domain resources that the paging use is sent out in RN and base station is identical.
As embodiments of the invention, the selected time-frequency domain resources information of sending beep-page message in base station may further comprise the steps:
Calculate according to the computing formula of DRX parameter, paging frame PF and paging occasion PO the base station can send the PO of paging; The base station calculation base station finds an immediate descending sub frame that can send paging to the propagation delay time of via node according to propagation delay time, and confirms that this descending sub frame is for sending the subframe of beep-page message.
The DRX parameter that provides in the system information is stored in UE, and along with system information is upgraded and upgraded, the formula below can adopting according to the DRX parameter that provides in the system information calculates PF and PO, and wherein, the computational methods of PO that calculating can be sent paging are following:
PF:SFN mod T=(T/N) * (UE_ID mod N), the system frame number SFN of promptly corresponding paging frame PF meets the relation of above-mentioned formula;
PO：i_s＝floor(UE_ID/N)mod?Ns。
PO is also relevant with dual-mode with the relation of i_s, concerns as follows:
For FDD:
| Ns | PO works as i_s=0 | PO works as i_s=1 | PO works as i_s=2 | PO works as i_s=3 |
| 1 | 9 | N/A | N/A | N/A |
| 2 | 4 | 9 | N/A | N/A |
| 4 | 0 | 4 | 5 | 9 |
For TDD:
| Ns | PO works as i_s=0 | PO works as i_s=1 | PO works as i_s=2 | PO works as i_s=3 |
| 1 | 0 | N/A | N/A | N/A |
| 2 | 0 | 5 | N/A | N/A |
| 4 | 0 | 1 | 5 | 6 |
In the formula of aforementioned calculation PF and PO, each meaning of parameters and value are following:
The DRX cycle of T:UE;
nB：4T，2T，T，T/2，T/4，T/8，T/16，T/32；
N：min(T，nB)；
Ns：max(1，nB/T)；
UE_ID:IMSI mod 1024, if UE does not have IMSI (such as urgent call), UE can use the UE_ID of acquiescence, UE_ID=0; N/A representes not use.
Particularly, a subframe of sending beep-page message is selected through said method in the base station on PDSCH, the place subframe that this subframe will be the carrying base station and via node sends this beep-page message simultaneously.
After the time-frequency domain resources of base station through the selected transmission of said method beep-page message, beep-page message and corresponding time-frequency domain resources information are sent to via node, the notice via node sends beep-page message on corresponding time-frequency domain resources.
S103: base station and via node send beep-page message simultaneously.
In step S102; After via node is received and is sent the corresponding time-frequency domain resources information of beep-page message; To in step S103, realize sending this beep-page message simultaneously with the base station, for system, beep-page message adopted the transmission of base station and via node is identical time-frequency domain resources.
Subscriber equipment is only monitored a sub-frame in each page monitoring DRX cycle.As shown in Figure 4, be the sketch map of UE monitoring beep-page message.
Because the base station is initiated duplicate paging with via node at identical time-frequency domain, subscriber equipment is only received the paging that once comes automatic network.Subscriber equipment can obtain the diversity gain in space through the beep-page message that via node sends, and improves the covering power of paging, improves paging success rate.
The present invention has also proposed a kind of base station equipment 500 on the other hand, and is as shown in Figure 5, is the structural representation of base station equipment 500, comprises receiver module 510, selects module 520 and sending module 530.
Wherein, receiver module 510 is used for the beep-page message that receiving mobility management entity MME sends; Select module 520 to be used for selected time-frequency domain resources information of sending beep-page message; Sending module 530 sends beep-page message and time-frequency domain resources information to via node, and sends beep-page message to subscriber equipment.
As embodiments of the invention, select module 520 also to comprise computing module 521.
Wherein, computing module 521 calculates according to the computing formula of DRX parameter, paging frame PF and paging occasion PO and can send the PO of paging; Calculation base station finds an immediate descending sub frame that can send paging to the propagation delay time of via node according to propagation delay time, and confirms that this descending sub frame is for sending the subframe of beep-page message.
As embodiments of the invention, time-frequency domain resources is the physical resource on the Physical Shared Channel PDSCH, and the physical resource on the Physical Shared Channel PDSCH is indicated through the dispatch that is designated pager wireless net network temporary mark P-RNTI on the shared control channel.
As embodiments of the invention, base station equipment 500 is sent beep-page message and dispatch in same descending sub frame.
The said equipment that the present invention proposes has solved the problem of RN and BS collaborative work, realization paging in the system.Through in cellular network, introducing RN, can improve cell edge and cover, improve cell throughout.The technical scheme that the present invention proposes helps improving the coverage rate of communication system pages and the success rate of paging.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simply, efficiently helping the elevator system performance.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. the paging method of a relay node is characterized in that, may further comprise the steps:
The base station is from Mobility Management Entity MME paging receiving message;
The time-frequency domain resources information of sending said beep-page message is selected in said base station, and sends said beep-page message and said time-frequency domain resources information to via node;
Said base station and said via node send said beep-page message on said time-frequency domain resources,
Wherein, the selected time-frequency domain resources information of sending said beep-page message in said base station may further comprise the steps:
Calculate according to the computing formula of discontinuous reception DRX parameter, paging frame PF and paging occasion PO said base station can send the PO of paging;
The propagation delay time of said base station to via node calculated in said base station, finds an immediate descending sub frame that can send paging according to said propagation delay time, and confirms that this descending sub frame is for sending the subframe of said beep-page message.
2. the paging method of relay node as claimed in claim 1 is characterized in that, said time-frequency domain resources is the physical resource on the Physical Shared Channel PDSCH.
3. the paging method of relay node as claimed in claim 2 is characterized in that, the physical resource on the said Physical Shared Channel PDSCH is indicated through the dispatch that is designated pager wireless net network temporary mark P-RNTI on the shared control channel.
4. the paging method of relay node as claimed in claim 3 is characterized in that, send said beep-page message and said dispatch said base station in same descending sub frame.
5. like the paging method of the described relay node of one of claim 1 to 4, it is characterized in that subscriber equipment receives the said beep-page message from said base station and/or the transmission of said via node.
6. a base station equipment is characterized in that, comprising:
Receiver module, said receiver module are used for the beep-page message that receiving mobility management entity MME sends;
Select module, said selection module is used for selected time-frequency domain resources information of sending said beep-page message;
Sending module, said sending module sends said beep-page message and said time-frequency domain resources information to via node, and sends said beep-page message to subscriber equipment,
Wherein, said selection module also comprises computing module,
Said computing module calculates according to the computing formula of DRX parameter, paging frame PF and paging occasion PO can send the PO of paging;
Calculate the propagation delay time of said base station, find an immediate descending sub frame that can send paging, and confirm that this descending sub frame is for sending the subframe of said beep-page message according to said propagation delay time to via node.
7. base station equipment as claimed in claim 6; It is characterized in that; Said time-frequency domain resources is the physical resource on the Physical Shared Channel PDSCH, and the physical resource on the said Physical Shared Channel PDSCH is indicated through the dispatch that is designated pager wireless net network temporary mark P-RNTI on the shared control channel.
8. base station equipment as claimed in claim 7 is characterized in that, said base station equipment is sent said beep-page message and said dispatch in same descending sub frame.
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| CN109792679A (en) * | 2016-08-11 | 2019-05-21 | 华为技术有限公司 | Communication means, device and equipment |
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| WO2015042780A1 (en) * | 2013-09-24 | 2015-04-02 | 华为技术有限公司 | Method for receiving and method and apparatus for sending paging message |
| CN104811279B (en) * | 2014-01-23 | 2018-05-22 | 电信科学技术研究院 | A kind of paging message transmission method and device |
| GB2555662A (en) * | 2016-11-04 | 2018-05-09 | Tcl Communication Ltd | Paging and connection establishment via relay devices in a wireless communication system |
| CN108616986A (en) * | 2017-01-05 | 2018-10-02 | 中兴通讯股份有限公司 | a kind of paging method, device and transmission node |
| WO2018137284A1 (en) * | 2017-01-25 | 2018-08-02 | 华为技术有限公司 | Method and device for transmitting paging message |
| CN108632949B (en) * | 2017-03-24 | 2023-06-27 | 华为技术有限公司 | Information transmission method and network equipment |
| CN110235485B (en) * | 2017-04-28 | 2024-03-29 | Oppo广东移动通信有限公司 | Message transmission method, device and system |
| CN111512607A (en) * | 2017-12-29 | 2020-08-07 | Oppo广东移动通信有限公司 | Paging processing method, user equipment, network equipment and computer storage medium |
| KR102430660B1 (en) | 2018-03-28 | 2022-08-09 | 삼성전자 주식회사 | Apparatus and method for transmitting and receiving paging message by using frequency division multiplexing in next generation mobile communication system |
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| CN101043700A (en) * | 2006-03-22 | 2007-09-26 | 华为技术有限公司 | Method for paging terminal under idle mode |
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