CN101106747B - Method for user device to receive service data and stop transmitting service data in network - Google Patents
Method for user device to receive service data and stop transmitting service data in network Download PDFInfo
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- CN101106747B CN101106747B CN2006101065102A CN200610106510A CN101106747B CN 101106747 B CN101106747 B CN 101106747B CN 2006101065102 A CN2006101065102 A CN 2006101065102A CN 200610106510 A CN200610106510 A CN 200610106510A CN 101106747 B CN101106747 B CN 101106747B
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Abstract
The present invention discloses a method by which UE receives downloaded service data. UE receives the service data of the current service in the current sub-zone. The method includes: the network side sends UE the current service information in the sub-zone adjacent to the current sub-zone; according to the received current service information in the sub-zone adjacent to the current sub-zone, UE determines the adjacent sub-zone from which UE itself need receive the service data, and further receive the service data from the determined adjacent sub-zone. The present invention further discloses a method by which the network side stops sending downloaded service data. UE in the current sub-zone and UE in the sub-zone adjacent to the current sub-zone receive the service data sent by the current sub-zone. The method includes: if the network side determines that the number of UE receiving the service data in the current sub-zone is zero, and further determines no UE in the other sub-zones receiving the service data of the current sub-zone, then the network side stops sending the service data in the current sub-zone. According to the methods disclosed in the present invention, service interruption or loss of service data can be avoided in the process of reelecting sub-zones.
Description
Technical field
The present invention relates to multicasting technology, be meant that especially a kind of subscriber equipment reception downlink service data and network side stop to send the method for downlink service data.
Background technology
In existing 3GPP R99, R4 protocol network,, particularly can user's various demands have been satisfied for the user provides various data services for the user provides multiple business.As utilize mobile phone to watch streaming media service such as news, sports tournament.These streaming media service are realized by the multicast mode at present.
This paper is example with cell multicast (CMB) business, provides method of the present invention.Described CMB is professional for being carried on the multicast service on the auxiliary publish control physical channel (SCCPCH).Subscriber equipment (UE) receives the business datum of CMB business under the CELL-FACH state.The specific implementation process of CMB business is as described below.
The professional multicast wireless network that uses of CMB temporarily identifies (G-RNTI) sign downlink service data.The structure of G-RNTI comprises group id (Group-Id) territory that is used to distinguish different multicast groups as shown in Figure 1, is used to identify length mark (Length) territory of length, and filling (Padding) territory that is used to guarantee the total length of G-RNTI.The total length of G-RNTI is 16 bits, and wherein, the length in Group-Id territory changes in the scope between 12 bits at 4 bits; When the length in Group-Id territory during less than 12 bits, the Padding territory is used for filling; The Length territory takies 4 fixing bit values, and the total length of expression G-RNTI deducts the length of Group-Id.
Network side issues the CMB business in the multicast mode, at this moment, carries above-mentioned G-RNTI in the mac frame of business datum; After receiving the CMB business datum of network side, UE obtains G-RNTI from business datum, and judges according to the Group-Id among the G-RNTI whether this business datum is the business datum of the CMB business of self-demand, if then receive this business datum.
But the previous UE of order can only receive business datum from the current area at self place, thus when this UE under the situation of sub-district gravity treatment, can cause service disconnection or service data loss usually, influence user's impression; And, for the quality that guarantees each UE reception business datum in the sub-district promptly improves cell coverage area, the SCCPCH transmitting power of carrying CMB business will be very high, so not only takies a large amount of power resources, but also other business of network is caused serious disturbance.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of UE to receive the method for downlink service data, make UE in the business datum that receives current area, receive the downlink service data of adjacent sub-district, when UE is in sub-district gravity treatment situation, avoid service disconnection or service data loss.
Another main purpose of the present invention is to provide a kind of network side to stop to send the method for downlink service data, when not having UE to receive the business datum of current area, makes current area stop to send business datum, uses to reduce unnecessary descending power.
In order to reach above-mentioned first main purpose, the invention provides the method that a kind of UE receives downlink service data, UE is in the business datum of current area reception current business, and this method comprises:
Current business information in the adjacent sub-district of the current area that a.UE reception network side this UE in current area issues; Wherein, current business information comprises in the adjacent sub-district of described current area: the power bias difference of the channel of carrying current business in the relative current area of channel of carrying current business in corresponding adjacent sub-district;
B.UE measures the common pilot signal intensity of the adjacent sub-district of selected support current business, then according to measured common pilot signal intensity, and, determine self need receive the adjacent sub-district of business datum with reference to the power bias difference of carrying the channel of current business in the relative current area of channel of carrying current business in the adjacent sub-district of supporting current business;
C.UE receives business datum from determined adjacent sub-district.
Current business information comprises in the adjacent sub-district of the described current area of step a: whether the information of adjacent cells of current area, corresponding adjacent sub-district support the state information of current business;
The described UE of step b determines that according to current business information in the adjacent sub-district of current area the adjacent sub-district that self needs receives business datum is: the state information whether UE supports current business according to the information of adjacent cells and the corresponding adjacent sub-district of current area, select to support the adjacent sub-district of current business, from the adjacent sub-district of selected support current business, determine self need receive the adjacent sub-district of business datum.
The channel of described carrying current business is: SCCPCH.
Whether step a supports the state information of current business to comprise in described corresponding adjacent sub-district: the current state information that whether is sending business datum in adjacent sub-district of supporting current business;
The described UE of step c receives business datum from determined adjacent sub-district: the current state information that whether is sending business datum in adjacent sub-district of the support current business that UE obtains according to network side, determine self current business datum that sending in determined adjacent sub-district, then from this neighbour sub-district, receive business datum.
Current business information further comprises in the adjacent sub-district of the described current area of step a: support current business and the current channel code of carrying the SCCPCH of current business in the adjacent sub-district of business datum that sending;
The described UE of step c receives business datum from adjacent sub-district: UE monitors the SCCPCH of carrying current business in this neighbour sub-district, after utilizing the channel code despreading of this SCCPCH to obtain business datum, obtaining the multicast wireless network from described business datum temporarily identifies G-RNTI and determines according to the group id Group-Id of the multicast group among the G-RNTI whether this business datum is the business datum of current business, if then receive this business datum.
Whether step a supports the state information of current business to comprise in described corresponding adjacent sub-district: the current state information that whether is sending business datum in adjacent sub-district of supporting current business;
The described UE of step c receives business datum from determined adjacent sub-district:
The current state information that whether is sending business datum in adjacent sub-district of the support current business that UE obtains according to network side, determine self current business datum that do not send in determined adjacent sub-district, then send the information of adjacent cells of self expecting to receive business datum to network side;
After network side receives the information of adjacent cells of described UE expectation reception business datum, the adjacent sub-district that receives business datum to described UE expectation sends business datum, if send successfully, then issue the channel code information of the SCCPCH of carrying current business in current state information that is sending business datum in described adjacent sub-district and the described adjacent sub-district to this UE; If send failure, then issue the state information that current business is not supported in described adjacent sub-district to this UE;
If UE receives the channel code information of the SCCPCH of carrying current business in current state information that is sending business datum in described adjacent sub-district that network side returns and the described adjacent sub-district, then from described adjacent sub-district, receive business datum; If UE receives the state information that current business is not supported in described adjacent sub-district that network side returns, then do not do any processing.
Described UE to the information of adjacent cells that receives business datum of self expecting that network side sends is: the UE expectation receives the main scrambling code information of the adjacent sub-district of business datum.
Described UE receives business datum from this neighbour sub-district: UE monitors the SCCPCH of carrying current business in this neighbour sub-district, after utilizing this SCCPCH channel code despreading to obtain business datum, from described business datum, obtain G-RNTI and determine according to the Group-Id among the G-RNTI whether this business datum is the business datum of current business, if then receive this business datum.
This method further comprises: UE judges whether to continue to receive the business datum that self is receiving the sub-district of business datum, if determine not continue to receive the business datum that self is receiving the sub-district of business datum, does not then receive the business datum of this sub-district.
The business datum that UE judges whether to continue to receive the sub-district that self is receiving business datum is: UE measures the current pilot signal strength that is receiving the sub-district of business datum, judge whether to continue to receive the business datum that self is receiving the sub-district of business datum then according to measured common pilot signal intensity, and in conjunction with the power bias of the channel that carries current business.
The described UE of step c receives after the business datum from determined adjacent sub-district, further comprises: the business datum that UE receives from current area and adjacent sub-district is selected to merge and is received.
Described network side this UE in current area issues that current business information is in the adjacent sub-district of current area: network side carries and sends to UE with current business information in the adjacent sub-district of described current area by SIB12 message.
Described network side to the channel code information that UE issues the SCCPCH of carrying current business in current state information that is sending business datum in described adjacent sub-district and the described adjacent sub-district is: network side with described adjacent sub-district in the current state information that is sending business datum and the described adjacent sub-district channel code information of the SCCPCH of carrying current business carry and send to UE by SIB12 message;
Described network side issues described adjacent sub-district to UE and do not support the state information of current business to be: network side does not support the state information of current business to carry and send to UE by SIB12 message described adjacent sub-district.
Described UE sends to network side and self expects that the information of adjacent cells that receives business datum is: UE will self expect that the information of adjacent cells that receives business datum carries and send to network side by cell update message.
Described step a is: network side this UE in current area issues all professional information that current area is supported in the adjacent sub-district of current area;
The described UE of step b receives that current business information is in the adjacent sub-district of current area: UE obtains current business information in the adjacent sub-district of current area from received all professional information that current area is supported the adjacent sub-district of current area.
The described network side of step a issues all professional information that current area is supported in the adjacent sub-district of current area: network side carries described all professional information that current area is supported in the adjacent sub-district of current area by SIB12 message;
The described UE of step b obtains that current business information is in the adjacent sub-district of current area: UE reads SIB12 message, obtains current business information in the adjacent sub-district of current area from SIB12 message.
Described business is a cell multicast CMB business.
In order to reach above-mentioned second main purpose, the invention provides the method that a kind of network side stops to send downlink service data, UE under the current area receives the business datum that current area sends, and the UE under the adjacent sub-district of current area receives the business datum that current area sends; This method comprises:
When network side determines that the UE number of reception business datum in current area is zero, judge the UE whether business datum that receives the current area transmission is arranged in other sub-district,, then in current area, stop to send business datum if do not have.
Set in advance the access probability factor APF that is used to inquire about;
Described network side in the business datum that current area sends is: the business datum that carries described APF;
Described UE further comprises after receiving the business datum of current area: UE obtains APF from business datum, and judges whether that according to APF needs return response, if determine to return response, then returns response to network side; If determining does not need to return response, then do not do any processing.
The described APF that is provided for inquiring about is: the value of APF is set to K1 when not inquiring about, and the value of APF is set to the span of K2 to K3 when inquiring about, and setting and the span corresponding inquiry response probability of K2 to K3;
Described UE judges whether that according to APF needs return response and are: when UE determined that the value of APF is K1, judging did not need to return response; When UE determined value that the value of APF is K2 in the K3 span, judgement need be returned response, and returns the response of the information of the set of cells that receives business datum to network side according to the inquiry response probability of APF value correspondence.
Determine in current area to receive the UE number of business datum when non-vanishing when network side, the value that network side is provided with APF is K1, the value of set APF is carried in the business datum send.
Whether described network side is judged has the UE of the business datum that receives the current area transmission to be in other sub-district:
A. network side starts the inquiry timer, and judges whether timer is overtime, if overtime, execution in step B then;
B. network side is re-set as K2 with the APF value does not have the value of selected mistake in K3, and selects all values in judging whether from K2 to K3, if then determine not receive in other sub-district the UE of the business datum that current area sends, process ends; Otherwise, set APF value is carried in the business datum sends, forward step C to;
C. network side judges whether to receive the response that UE returns, and judge in the set of cells that receives business datum that UE returns whether have current area, if receive in response and the described set of cells and have current area, then determine to have in other sub-district the UE of the business datum that receives the current area transmission, and return execution in step A; Otherwise, return execution in step B.
Described K2 is less than K3;
Described setting with K2 to the corresponding inquiry response probability of the span of K3 is: described K2 satisfies the increasing function relation between the span of K3 and its corresponding inquiry response probability;
The described network side of step B is re-set as K2 with the APF value does not have the value of selected mistake to be in K3: network side is set to K2 for the first time, begins to set gradually the value for the APF value big 1 that is provided with than the last time for the second time;
Selected all values to be during the described network side of step B judges whether from K2 to K3: network side judges that whether set APF value is greater than K3.
Described K2 is less than K3;
Described setting with K2 to the corresponding inquiry response probability of the span of K3 is: described K2 satisfies the decreasing function relation between the span of K3 and its corresponding inquiry response probability;
The described network side of step B is re-set as K2 with the APF value does not have the value of selected mistake to be in K3: network side is set to K3 for the first time, begins to set gradually the value for the APF value little 1 that is provided with than the last time for the second time;
Selected all values to be during the described network side of step B judges whether from K2 to K3: network side judges that whether set APF value is less than K2.
Described UE to the response that network side returns the set of cells information that receives business datum is: UE carries and sends to network side with the set of cells information that self is receiving business datum by cell update message.
This method further comprises:
The UE of described reception business datum sends to network side and self is receiving the information of the set of cells of business datum;
Network side judges whether to exist current area from the set of cells that receives business datum that UE sends, if then the value of APF is set to K1, the value of set APF is carried in the business datum sends, then execution in step A.
Described UE to the information that network side sends the set of cells that self is receiving business datum is: UE carries and sends to network side with the information that self is receiving the set of cells of business datum by cell update message.
Described APF is arranged among the G-RNTI.
The total length of described G-RNTI is 16 bits, and the length of Group-Id is the value between 4 to 8 bits, and the regular length of described APF is 4 bits, and the regular length of described length mark Length is 4 bits.
Receive the method for downlink service data according to UE provided by the invention, network side is given current business information in the adjacent sub-district that the UE of current area provides current area, UE determines to receive the adjacent sub-district of business datum according to these information, and the business datum of adjacent sub-district that reception is determined, like this, UE not only receives the business datum of current area, also receive the business datum of other adjacent sub-district simultaneously, when this UE is under the sub-district gravity treatment situation, owing to receive the current business data from a plurality of sub-districts, thereby avoided the situation of service disconnection or service data loss, improved QoS.In addition, because UE receives business datum by a plurality of sub-districts, improved the quality of reception of downlink service data effectively, so the SCCPCH channel emission power of bearer service can reduce, thereby reduce the big transmitting power of SCCPCH to Internet resources take and to the interference of network, and, can also offer more channel more business is provided.In addition, when information of adjacent cells changed, network side can in time be notified the relevant information of current business in the adjacent sub-district of UE by SIB12 message, make UE can in time obtain the relevant information of adjacent sub-district, thereby UE can in time receive business datum from other adjacent sub-district; UE can receive the information of the adjacent sub-district of business datum by cell update message informing self expectation, makes network side can in time obtain the adjacent sub-district that the UE expectation receives business datum, thereby starts the process that the corresponding service data send.
Method according to stop transmitting service data in network provided by the invention, when network side is determined not receive the UE of current business in the current area, the query script of initiation in adjacent sub-district, when determining also not have in other adjacent sub-district UE to receive the business datum of current area like this, in current area, stop to send business datum, use thereby saved unnecessary power.UE can receive self the set of cells informing network side of business datum in real time, as long as network side defines UE when receiving the business datum of current area, then restarts timer, thereby avoids carrying out unnecessary query script.
Description of drawings
Figure 1 shows that the structure chart of G-RNTI in the prior art;
Figure 2 shows that the flow chart of UE reception downlink service data among the present invention;
Figure 3 shows that network side among the present invention stops to send the flow chart of downlink service data;
Figure 4 shows that the structure chart of G-RNTI among the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, lift specific embodiment below, the present invention is further detailed explanation.
The invention provides the method that UE receives business datum, its main thought is: when UE received the business datum of current business in current area, network side issued current business information in the adjacent sub-district of current area to this UE; UE determines self need receive the adjacent sub-district of business datum according to current business information in the adjacent sub-district of received current area, and receives business datum from determined adjacent sub-district.Like this, UE receives the business datum of current business simultaneously from current area and other adjacent sub-district.
For convenience, the sub-district at the current place of UE is called current area, the current ongoing CMB business of UE is called current C MB business.When UE is in the CELL-FACH state, when UE receives the business datum of current C MB business in current area,, can from other adjacent sub-district, receive the business datum of current C MB business by flow process shown in Figure 2, specifically comprise following step:
Step 201: network side is the CMB business information in the adjacent sub-district of the UE of current area transmission current area.
The CMB business information comprises in the adjacent sub-district of current area: the information of adjacent cells of current area, the professional SCCPCH information list of CMB, CMB service condition, SCCPCH channel code, SCCPCH power bias difference.Introduce the method for expressing of each information below in detail and carry situation.
The information of adjacent cells of current area is essential information, and promptly network need be told all adjacent sub-districts of current area to UE.
The professional SCCPCH information list of CMB is an optional information.If can not support any one CMB business that current area is supported in the adjacent sub-district, then do not provide the professional SCCPCH information list of CMB at this neighbour sub-district; If the CMB business that can support that current area is supported is arranged in the adjacent sub-district, then provide the professional SCCPCH information list of CMB at this neighbour sub-district, its method for expressing is: provide the SCCPCH information list of this neighbour sub-district accordingly with SCCPCH tab sequential in the current area.Like this, the SCCPCH of current area goes up the identical CMB business of carrying with the SCCPCH of its corresponding adjacent sub-district.
The CMB business state information is essential information.Whether each SCCPCH that this CMB business state information is described the adjacent sub-district that provides the SCCPCH information list supports the state that CMB is professional and whether sending business datum.The CMB service condition comprises: " not supporting ", " supporting but not transmission ", " supporting also to send " three kinds of states.Described " not supporting " do not support the CMB business for this neighbour sub-district; " support but not transmission ", not send business datum now though be that the CMB business is supported in this neighbour sub-district; " supporting also to send " is that the CMB business is supported in adjacent sub-district, and is sending business datum now.
The SCCPCH channel code is a conditional information.When the CMB service condition is " supporting also to send ", the channel code of carrying the SCCPCH of the corresponding CMB business of carrying.
SCCPCH power bias difference is a conditional information.The CMB service condition is provided SCCPCH power bias difference for the SCCPCH of " support and send " or " support but not have transmission ".Described SCCPCH power bias difference is that current area is carried the SCCPCH power bias of this CMB business with respect to the difference between the power bias of the SCCPCH of this CMB business of the little area carrier of neighbour.
In the adjacent sub-district of above-described current area in the CMB business information, network side can be according to concrete applicable cases, with part or whole information be handed down to UE.
Network preferably carries CMB business information in the adjacent sub-district of above-mentioned current area by system information block (SIB) 12 message, and is handed down to all UE in the current area.Because in the existing SIB12 message, the information of adjacent cells that has had current area, therefore, 4 information units such as the professional SCCPCH information list of CMB, CMB service condition, SCCPCH channel code, SCCPCH power bias difference are set in SIB12 message, and according to adjacent sub-district support CMB service conditions, the particular content of filling in the corresponding information unit gets final product.
Because SIB12 message is the system message that network sends to UE, normally when the information of adjacent cells of current area changes, upgrades the SIB12 information and sending and give UE.When network by in the adjacent sub-district of SIB12 message informing UE current area during the CMB business information, when the information of adjacent cells of current area changes, CMB business information in the adjacent sub-district of corresponding renewal current area, and send to UE, like this when UE finds that SIB12 message changes, can in time read SIB12 message again and obtain CMB business information in the adjacent sub-district of current area.
Obtain current C MB business information in the adjacent sub-district of current area the adjacent sub-district of the current area that step 202:UE receives from network side in the CMB business information, and determine that according to current C MB business information in the adjacent sub-district of current area needs receive the adjacent sub-district of business datum.
When network side issues in the adjacent sub-district of current area the CMB business information by SIB12 message, when UE finds that SIB12 message changes, read SIB12 message again and obtain current C MB business information in the adjacent sub-district of current area.
UE is according to current C MB business information in the adjacent sub-district of current area, select to support the adjacent sub-district of current C MB business, promptly select the adjacent sub-district of current C MB service condition for " supporting but not transmission " or " support also sends ", measure the common pilot signal intensity of these adjacent sub-districts of supporting described current C MB business, then according to measured these support current C MB business adjacent sub-district common pilot signal intensity and with reference to the difference between the SCCPCH power bias between the adjacent sub-district of current area and these support current C MB business, determine self need to receive the adjacent sub-district of the business datum of current C MB business.
At this, UE determines that the standard that need receive the adjacent sub-district of business datum can be provided with different standards according to concrete application.For example, the thresholding of common pilot signal intensity is set,, just determines to receive the business datum of this neighbour sub-district if the common pilot signal intensity of adjacent sub-district reaches this thresholding or surpasses this thresholding; Also for example, the number of the adjacent sub-district that can receive at most is set, then according to common pilot signal intensity and power bias difference, from the good adjacent sub-district of determining to receive business datum to the order of difference successively of performance.
Step 203:UE is from the adjacent sub-district of current area in the current C MB business information, obtain the state of current C MB business in the adjacent sub-district of the determined business datum that need to receive current C MB business, judge whether this neighbour sub-district is sending business datum, if should support that current C MB was professional and sending business datum in the neighbour sub-district, then execution in step 204; Though if should the neighbour sub-district support that current C MB is professional but do not send business datum, then execution in step 205.
At this, UE judges whether this neighbour sub-district is sending business datum and be: UE obtains the state of current C MB business in this neighbour sub-district and judges in the current C MB business information from the adjacent sub-district of current area, receive in the adjacent sub-district of business datum current C MB service condition if desired and be " support and send ", then UE can determine that this neighbour sub-district supports that current C MB is professional and sending this business datum; Receive in the adjacent sub-district of business datum current C MB service condition if desired and be " support but do not send ", then UE can determine that this neighbour sub-district supports that current C MB is professional but do not send business datum.
Step 204:UE begins to receive the business datum of the CMB business that this neighbour sub-district sends when receiving the business datum of current area.The detailed process that UE receives the business datum of adjacent sub-district transmission is: UE monitors the SCCPCH of carrying current C MB business in this neighbour sub-district, after utilizing this SCCPCH channel code despreading to obtain business datum, from described business datum, obtain G-RNTI and determine according to the Group-Id among the G-RNTI whether received business datum is the business datum of current C MB business, if, then receive this business datum, then with current area and other sub-district in the business datum that receives select to merge and receive.At this, when selecting to merge, UE can select the best business datum of signal quality from the business datum that current area and other adjacent sub-district receive; Stack obtains business datum after perhaps can also multiply by corresponding weights to the business datum that receives from current area and other adjacent sub-district.
Step 205:UE sends the information that this UE expectation receives the adjacent sub-district of business datum to network side.The information that described this UE expectation receives the adjacent sub-district of business datum can be represented with the main scrambling code information of the adjacent sub-district of correspondence.Simultaneously, UE can also send the information that this UE is receiving the sub-district of business datum to network, and is same, and described this UE is receiving the information of the sub-district of business datum and can represented by the main scrambling code information of respective cell.
UE preferably carries above-mentioned UE expectation by cell update message and receives the information of adjacent sub-district of business datum and the information that UE is receiving the sub-district of business datum.Be specially: in existing cell update message, be provided with expectation receive business datum adjacent sub-district information unit and receiving the information unit of the sub-district of business datum, in the time need sending relevant cell information, fill in corresponding information unit and get final product to network side.
Step 206: after network side receives the information of adjacent cells of this UE expectation reception business datum from UE, send the business datum of current C MB business to the adjacent sub-district that described this UE expectation receives business datum, and judge whether business datum sends success, and if send successfully, execution in step 207-1 then; If send failure, then execution in step 207-2.
Step 207-1: network side should the neighbour sub-district in the state of current C MB business be revised as " support and send " by " support but do not send ", and the channel code information of the SCCPCH of current C MB business state information and carrying current C MB business sends to UE in should the neighbour sub-district, forwards step 208 then to.
Step 207-2: network side should the neighbour sub-district in the state of current C MB business be revised as " not supporting " by " support but do not send ", and current C MB business state information sends to UE in should the neighbour sub-district, forwards step 208 then to.
In step 207-1 and step 207-2, in the described adjacent sub-district of network amendment the information of current C MB business and the specific implementation process that sends to UE can for: network change the information of current C MB business in the described adjacent sub-district in SIB12 message, and by the SIB12 message informing to UE.
Self expectation that step 208:UE receives that network side sends receives in the adjacent sub-district of business datum behind the current C MB business state information, if the state of current C MB business transfers in the described adjacent sub-district " supporting also to send ", then in the business datum that receives current area, begin to receive business datum from described adjacent sub-district; If the state of current C MB business transfers " not supporting " in the described adjacent sub-district, then no longer attempt from described adjacent sub-district, to receive business datum.At this, when receiving in the adjacent sub-district of business datum information such as current C MB service condition by this UE of SIB12 message informing UE expectation when network, UE then reads SIB12 message again and obtains relevant information as long as finding SIB12 message changes.
After if UE continues for some time, also do not receive the professional relevant any information of current C MB in the described adjacent sub-district that network side sends, perhaps, current C MB service condition is " supporting but not transmission " always in the described adjacent sub-district, then send the information of the adjacent sub-district of self expecting the reception business datum once more to network side, promptly return step 205, carry out the above-mentioned later processing procedure of step 205.
By above flow process, UE not only can receive the business datum of current C MB business from current area, can also receive the business datum of current C MB business from other adjacent sub-district.Like this, when UE is in the cell reselection process,, thereby can not interrupt current business or can not lose business datum because this UE receives business datum from a plurality of sub-districts.
When UE receives the business datum of current C MB business from current area and other adjacent sub-district, UE can no longer receive business datum from the sub-district that receives business datum, its process is: UE measures the current common pilot signal intensity that is receiving the sub-district of business datum, according to measured common pilot signal intensity, and the power bias of the SCCPCH channel of combination carrying current C MB business judges whether that the sub-district of continuing from receiving business datum receives business datum, if determine no longer to continue from the sub-district that receives business datum, to receive business datum, then do not receive the business datum of this sub-district.Wherein, the standard that UE no longer continues to receive the business datum of the sub-district that receives business datum also can be provided with different standards according to concrete applicable cases, for example, the thresholding of common pilot signal intensity can be set, if common pilot signal intensity does not reach this thresholding, then no longer receive business datum from this sub-district; Again for example, setting can receive the maximum number of the sub-district of business datum simultaneously, when the number of cells that receives business datum surpasses set maximum number, no longer continues the business datum of the sub-district of received signal quality difference successively.
Network side need determine that whether the CMB business datum that current area sends has UE to receive, if there is not UE to receive, then needs to stop the transmission of this business datum, to reduce the use of unnecessary descending power.In the prior art, because UE only receives business datum from current area, therefore, only need to judge that current area does not receive the UE of business datum, then can stop to send this business datum.Yet, because UE not only receives business datum from current area in the present invention, also receives business datum from other adjacent sub-district, therefore, do not receive the UE of the business datum of current area in the current area, but also may have the UE of the business datum that receives current area in other adjacent sub-district.Like this, at the method for the above-mentioned UE reception business datum of the present invention, the method that need provide a kind of network side to stop to send downlink service data is to reduce the use of unnecessary descending power.Provide specific implementation method below.
The main thought that network side provided by the invention stops to send the method for downlink service data is: network side judges whether the UE number that receives business datum in current area is zero, when the UE number that receives business datum in current area is zero, judge the UE whether business datum that receives current area is arranged in other sub-district again, if no, then in current area, stop to send business datum.
At this, network side carries the parameter that is used to inquire about in the business datum of current transmission, after UE receives this business datum, according to the described parameter that is used to inquire about, returns or do not return response to network side.Like this, network side judges that the process of the UE whether business datum that receives current area is arranged in other sub-district is: the parameter that is used to inquire about of carrying in the suitable change business datum, network side is judged the UE whether business datum that receives current area is arranged in other sub-district according to the situation that UE returns response.Provide the specific implementation method below.
At first be provided for the access probability factor (APF) inquired about, the value that APF when not inquiring about is set not is K1, and the value that APF when inquiring about is set is the span of K2 to K3, and the corresponding inquiry response probability of span that arrives K3 with K2 is set.Wherein, described K2 also can satisfy the decreasing function relation to satisfying the increasing function relation between the span of the K3 inquiry response probability corresponding with it.
When network side sends business datum, in business datum, carry described APF; UE obtains APF from received business datum, and judges whether that according to the APF value needs return response, returns response if desired, then returns inquiry response with the corresponding inquiry response probability of this APF value to network side; If do not need to return response, then do not do any response.At this, UE to the inquiry response that network side returns is: UE is receiving the set of cells of business datum.
For example, the value of APF represents that with 4 bits the value that APF when not inquiring about then is set is 0, and the value that APF when inquiring about is set is 1～15 span, and closing with decreasing function is example, and setting is returned corresponding inquiry response probability with 1～15 value and satisfied (a)
APF-1, wherein a satisfies 0＜a＜1.
Value with this APF is an example below, provides the flow process that network side stops to send the business datum of current area, as shown in Figure 3, comprises following step:
The initial value that network side is provided with APF is 0.
Step 301: network side judges whether the UE number that receives the CMB business datum in current area is zero, if then execution in step 302; Otherwise, return step 301.
Step 302: network side starts the inquiry timer.
Step 303: network side judges whether timer is overtime, if then execution in step 304; Otherwise, return step 303.
In above step 301, and step 302 starts the inquiry timer and begins before the timer expiry, and network APF value all the time is set to 0, and when the transmission business datum, the APF value is carried in the business datum.The UE that receives business datum like this obtains APF from business datum, and is that 0 definite needs do not return response according to APF value.
Step 304: network side is re-set as 15 with the value of APF by 0, and is carried in the business datum when sending business datum.
At this moment, if receive the UE of this business datum in the adjacent sub-district in addition, the UE that then receives this business datum obtains APF, determines that according to the APF value needs return response, and, return the inquiry response of the set of cells that receives business datum to network side according to the corresponding inquiry response probability of this APF value.
Step 305: network side judges whether to receive the response that UE returns, and judge this UE is receiving in the set of cells of business datum whether have current area, if network side receives the response that UE returns, and this UE of returning of UE is receiving in the set of cells of business datum and has current area, then restart the inquiry timer, promptly return step 302; Otherwise, if do not receive the response that UE returns, receiving in the set of cells of business datum and do not have current area though perhaps receive this UE that response UE that UE returns returns, then enter step 306.
Step 306: network side reduces 1 with the APF value.
Step 307: whether network side judges the APF value less than 1, if then stop to send business datum, process ends in this neighbour sub-district; Otherwise, execution in step 308.
Step 308: network side carries APF value set in the step 306 in business datum when sending business datum, execution in step 305 then.
In above-mentioned flow process, UE can perhaps when the sub-district that self receives business datum changes, self receive the information of the set of cells of business datum to the network side transmission with periodically; After as long as network side receives the current set of cells information that is receiving business datum of this UE that UE sends, judge whether there is current area in this set of cells, if exist, then the value of APF is set to 0, start the inquiry timer, return the later step of execution in step 303 then.
In the above-described embodiments, when UE sends the information of self current set of cells that is receiving business datum to network side, can carry by cell update message.Because, when the UE described in the flow process shown in Figure 2 receives business datum, when UE need receive the business datum that service condition is in the adjacent sub-district " supporting but do not have to send ", send cell update message to network; When the APF among the G-RNTI in the business datum of received adjacent sub-district was non-vanishing, UE returned cell update message to network side; And, the cell update flow process when having periodic cell update flow process, sub-district gravity treatment in the prior art, in these processes, UE also sends cell update message to network side.Therefore, when UE has activated a CMB business, in these cell update message, can carry this UE and receive the set of cells information of business datum, like this, as long as judging in the set of cells that receives business datum, network side comprises current area, then restart the cyclic polling timer, thereby avoid unnecessary signaling interaction.
Network is when sending business datum, owing in business datum, carry G-RNTI, therefore, described APF parameter can be arranged among the G-RNTI, the method for carrying is: at first, remodify the form of G-RNTI, wherein, Group-Id is revised as maximum use 8 bits, and Length still uses 4 bits, the APF when 4 bits that will also be left are used to represent to inquire about then.Wherein, when the length in Group-Id territory during less than 8 bits, the Padding territory is used to fill to guarantee the total length of G-RNTI; Length represents that still the total length of G-RNTI deducts the length of Group-Id.The structure of described amended G-RNTI as shown in Figure 4.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a network side stops to send the method for downlink service data, and the UE under the current area receives the business datum that current area sends, and it is characterized in that, the UE the adjacent sub-district of current area under receives the business datum of current area transmission; This method comprises:
When network side determines that the UE number of reception business datum in current area is zero, judge the UE whether business datum that receives the current area transmission is arranged in other sub-district,, then in current area, stop to send business datum if do not have.
2. method according to claim 1 is characterized in that,
Set in advance the access probability factor APF that is used to inquire about;
Described network side in the business datum that current area sends is: the business datum that carries described APF;
Described UE further comprises after receiving the business datum of current area: UE obtains APF from business datum, and judges whether that according to APF needs return response, if determine to return response, then returns response to network side; If determining does not need to return response, then do not do any processing.
3. method according to claim 2 is characterized in that,
The described APF that is provided for inquiring about is: the value of APF is set to K1 when not inquiring about, and the value of APF is set to the span of K2 to K3 when inquiring about, and setting and the span corresponding inquiry response probability of K2 to K3;
Described UE judges whether that according to APF needs return response and are: when UE determined that the value of APF is K1, judging did not need to return response; When UE determined value that the value of APF is K2 in the K3 span, judgement need be returned response, and returns the response of the information of the set of cells that receives business datum to network side according to the inquiry response probability of APF value correspondence.
4. method according to claim 3 is characterized in that,
Determine in current area to receive the UE number of business datum when non-vanishing when network side, the value that network side is provided with APF is K1, the value of set APF is carried in the business datum send.
5. method according to claim 4 is characterized in that,
Whether described network side is judged has the UE of the business datum that receives the current area transmission to be in other sub-district:
A. network side starts the inquiry timer, and judges whether timer is overtime, if overtime, execution in step B then;
B. network side is re-set as K2 with the APF value does not have the value of selected mistake in K3, and selects all values in judging whether from K2 to K3, if then determine not receive in other sub-district the UE of the business datum that current area sends, process ends; Otherwise, set APF value is carried in the business datum sends, forward step C to;
C. network side judges whether to receive the response that UE returns, and judge in the set of cells that receives business datum that UE returns whether have current area, if receive in response and the described set of cells and have current area, then determine to have in other sub-district the UE of the business datum that receives the current area transmission, and return execution in step A; Otherwise, return execution in step B.
6. method according to claim 5 is characterized in that,
Described K2 is less than K3;
Described setting with K2 to the corresponding inquiry response probability of the span of K3 is: described K2 satisfies the increasing function relation between the span of K3 and its corresponding inquiry response probability;
The described network side of step B is re-set as K2 with the APF value does not have the value of selected mistake to be in K3: network side is set to K2 for the first time, begins to set gradually the value for the APF value big 1 that is provided with than the last time for the second time;
Selected all values to be during the described network side of step B judges whether from K2 to K3: network side judges that whether set APF value is greater than K3.
7. method according to claim 5 is characterized in that,
Described K2 is less than K3;
Described setting with K2 to the corresponding inquiry response probability of the span of K3 is: described K2 satisfies the decreasing function relation between the span of K3 and its corresponding inquiry response probability;
The described network side of step B is re-set as K2 with the APF value does not have the value of selected mistake to be in K3: network side is set to K3 for the first time, begins to set gradually the value for the APF value little 1 that is provided with than the last time for the second time;
Selected all values to be during the described network side of step B judges whether from K2 to K3: network side judges that whether set APF value is less than K2.
8. according to each described method in the claim 3 to 7, it is characterized in that described UE to the response that network side returns the set of cells information that receives business datum is: UE carries and sends to network side with the set of cells information that self is receiving business datum by cell update message.
9. according to each described method in the claim 5 to 7, it is characterized in that this method further comprises:
The UE of described reception business datum sends to network side and self is receiving the information of the set of cells of business datum;
Network side judges whether to exist current area from the set of cells that receives business datum that UE sends, if then the value of APF is set to K1, the value of set APF is carried in the business datum sends, then execution in step A.
10. method according to claim 9, it is characterized in that described UE to the information that network side sends the set of cells that self is receiving business datum is: UE carries and send to network side with the information that self is receiving the set of cells of business datum by cell update message.
11. method according to claim 2 is characterized in that,
Described APF is arranged among the G-RNTI.
12. method according to claim 11 is characterized in that,
The total length of described G-RNTI is 16 bits, and the length of Group-Id is the value between 4 to 8 bits, and the regular length of described APF is 4 bits, and the regular length of described length mark Length is 4 bits.
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| CN101568141B (en) * | 2008-04-25 | 2013-08-07 | 电信科学技术研究院 | Method for controlling information sending and communication equipment |
| CN101715218B (en) * | 2009-10-29 | 2012-07-04 | 新邮通信设备有限公司 | Improved cell update method and equipment |
| CN107360600B (en) * | 2012-03-07 | 2021-04-20 | 华为技术有限公司 | Method and equipment for selecting cell |
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