CN101547510B - Method and system for resource allocation - Google Patents
Method and system for resource allocation Download PDFInfo
- Publication number
- CN101547510B CN101547510B CN2008101027222A CN200810102722A CN101547510B CN 101547510 B CN101547510 B CN 101547510B CN 2008101027222 A CN2008101027222 A CN 2008101027222A CN 200810102722 A CN200810102722 A CN 200810102722A CN 101547510 B CN101547510 B CN 101547510B
- Authority
- CN
- China
- Prior art keywords
- resource
- dch
- node
- information
- subscriber equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a resource allocation method. The method comprises the following steps: an RNC allocates an SYNC_UL code for a UE and transmits the SYNC_UL code to the UE, the time-slot code channel resources used for rapid E-DCH random access and the authorized resources used for rapid E-DCH random access are allocated from an E-DCH shared resource pool for the UE, and the UE selects theresources corresponding to the UE from the resource index mapped by the time-slot code channel resources carried in the FPACH message transmitted through an FPACH according to a Node B and transmits the data through the E-DCH; and the normal E-DCH transmission is performed in the subsequent transmission according to the resources allocated according to the Node B. The invention not only ensures the utilization of the rapid E-DCH random access process to the resources, but also ensures that the resources for the rapid E-DCH random access can be used for other purposes under the condition of nouse, thereby improving the service efficiency of the system resources; the invention ensures the compatibility with the prior standard to the utmost extent; and the invention can effectively reduce the collision probability during the rapid E-DCH random access, thereby ensuring the link and the system performances. The invention also discloses a resource allocation system.
Description
Technical field
The present invention relates to the telecommunication system resources distribution technique, be particularly related to a kind of TD SDMA (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) realizes strengthening resource allocation methods and system in special uplink channel (E-DCH, the Enhanced Dedicated Channel) random access procedure in the system.
Background technology
In the TD-SCDMA system, at existing enhancing CELL_FACH (EnhancedCELL_FACH, Enhanced CELL_Forward Access Channel) under the state, adopt Physical Random Access Channel (PRACH, Physical Random Access Channel) carry out uplink, but transmission rate is lower.
In order to improve uplink speed, can adopt the high speed uplink packet of scheduling to insert (HSUPA, High Speed Uplink Packet Access) technology is carried out uplink, and increased the E-DCH that is used to carry the high speed uplink data newly, thereby can improve uplink speed effectively in TD-SCDMA system uplink direction.Before carrying out uplink, need to realize access at random and the resource allocation of E-DCH by E-DCH.
In the prior art, E-DCH inserts at random and can be divided into normal E-DCH and insert at random with fast E-DCH and insert at random.Fast E-DCH inserts at random with respect to normal E-DCH and inserts at random, the time delay that subscriber equipment (UE, User Equipment) inserts in the time of can reducing initial connection and set up.
Fig. 1 is a resource allocation methods schematic flow sheet in the fast E-DCH random access procedure in the prior art.Referring to Fig. 1, this flow process comprises:
In this step, the SYNC_UL signal is that length is the sequence of 128 chips (Chip), corresponding Physical Random Access Channel (the PRACH of different SYNC_UL sign indicating numbers, Physical Random AccessChannel) or E-DCH uplink random access control channel (E-RUCCH, E-DCH Randomaccess Uplink Control Channel) or the sign fast E-DCH insert at random, a sub-district has 8 SYNC_UL sign indicating numbers, will distribute to a time-slot code channel resource of SYNC_UL sign indicating number that PRACH or E-RUCCH or sign fast E-DCH insert at random and SYNC_UL sign indicating number correspondence to all UE broadcasting of sub-district in system broadcast message by network.UE knows that in advance need adopting PRACH or HSUPA or fast E-DCH to insert at random carries out uplink, inserts at random according to the PRACH that selects or HSUPA or fast E-DCH and selects corresponding pre-assigned SYNC_UL sign indicating number.In the present embodiment, UE adopts fast E-DCH to insert at random and carries out uplink by judging the data volume thresholding of data to be transferred amount and configuration.
In this step, Node B judges according to the SYNC_UL sign indicating number that receives and determines to carry out fast E-DCH and insert at random, FPACH message comprises signature sequence number (Signature Reference Number), relative subframe numbers (Relative Sub-Frame Number), ascending pilot channel (UpPCH, the Uplink Pilot Channel) original position (Received starting position of the UpPCH) that receives, RACH message transmit power level (Transmit Power Level Command for RACHmessage) and reservation position (Reserved bits) information.Each corresponding information length is as shown in table 1 in the FPACH message.
Table 1
| Information field | Length (bit) |
| |
3 |
| |
2 |
| The UpPCH original position that receives | 11 |
| RACH message transmit |
7 |
| Keep the position | 9 |
In the table 1,3 bits of signature sequence number are meant its highest effective bit (MSB, MostSignificant Bit), and 9 bits that keep the position are meant its minimum effective bit position (LSB, LeastSignificant Bit).
In the information of the reservation position of 9 bits (Reserved bits), 2 bits are used for UpPCH migration (UpPCH shifting), and remaining 7 bits are used for transmitting a part of E-DCH resource authorization information, i.e. the indication information that inserts at random of fast E-DCH.Remaining E-DCH resource authorization information will be prenoticed UE by alternate manner, for example, can select radio network controller (RNC by network side, Radio Network Controller) high-level signaling is configured, and by RNC the E-DCH resource authorization information that configures is issued to UE and Node B by system information broadcast or in initial connection procedure.
In this step, UE receives FPACH message, the resource authorization information that inserts at random that the E-DCH that carries in resource authorization information that inserts at random that strengthens according to the E-DCH that obtains in advance and the indication information strengthens, obtain the resource of mandate, realize inserting at random, and after realizing access at random, on E-DCH, select own operable speed and begin transfer of data.
As seen, because 8 SYNC_UL sign indicating numbers of a sub-district need be distributed to PRACH or E-RUCCH or identify fast E-DCH and insert at random in the prior art, the number of users that inserts at random when fast E-DCH more for a long time, the SYNC_UL sign indicating number resource of the Fen Peiing E-DCH access demand at random that can not satisfy the multi-user then.
Further, different user transmitted data amount difference in size is bigger, and the time-slot code channel resource of distributing to UE in the prior art has only one, can not adapt to the variation of data volume size, makes FPACH not carry out flexible dispatching according to different user demands.
And, in above-mentioned fast E-DCH random access procedure, do not indicate the FPACH resource allocation term of validity in time and be single effectively or continuous and effective, if continuous and effective, may cause that UE unrestrictedly initiates up access, cause the collision phenomenon in the access procedure, wasted system resource.
Summary of the invention
In view of this, the invention provides a kind of resource allocation methods, can optimize the fast E-DCH random access resource and distribute, improve efficiency of resource.
The present invention also provides a kind of resource allocation system, can optimize the fast E-DCH random access resource and distribute, and improves efficiency of resource.
A kind of resource allocation methods provided by the invention comprises:
Radio network controller (RNC) is user equipment allocation uplink synchronous SYNC_UL sign indicating number and sends to described subscriber equipment, inserts at random so that described subscriber equipment initiates to strengthen special uplink channel E-DCH fast to base station node B;
And RNC is used for time-slot code channel resource that fast E-DCH inserts at random and fast E-DCH insertion authority resource and notifying user equipment at random for user equipment allocation from E-DCH shared resource pond, so that the resource index that described subscriber equipment shines upon according to the time-slot code channel resource that Node B sends is therefrom selected the resource of the mandate of this subscriber equipment correspondence, wherein, the resource index of the time-slot code channel resource mapping of described Node B transmission sends to described Node B in advance by RNC.
Preferably, described RNC sends the resource index table that comprises a plurality of time-slot code channel resource mappings in advance to described Node B, described Node B selects a resource index and is sent to described subscriber equipment from described resource index table, so that the resource index that the time-slot code channel resource that described subscriber equipment sends according to Node B is shone upon is therefrom selected the resource of this subscriber equipment correspondence.
Preferably, described method further comprises: RNC is described user equipment allocation Midamble sign indicating number;
Described subscriber equipment is judged the transmission time interval of a current time and a preceding uplink synchronizing signals, if the time interval is in default timing, then insert at random by send Midamble sign indicating number initiation fast E-DCH to Node B, if interval greater than default timing, then insert at random by send SYNC_UL sign indicating number initiation fast E-DCH to base station node B.
Preferably, described resource index table comprises the resource index of single time slot code channel resource mapping, and/or the resource index of a plurality of time-slot code channel combination of resources mapping.
Preferably, described fast E-DCH at random the insertion authority resource comprise:
Power resource relevant information PRRI, up-enhancing control channel E-UCCH quantity indication ENI information, sign indicating number resource related information CRRI, time interval resource relevant information TRRI and E-DCH mix automatic repeat requests and confirm indicating channel E-HICH indication information EI.
Preferably, described Node B is sent to subscriber equipment by the resource index that indication information shines upon the time-slot code channel resource.
Preferably, described indication information further comprises resource continuous time indication RDI information, is used to identify the Transmission Time Interval TTI number of distribution.
Preferably, described indication information further comprises PRRI and ENI information;
Described fast E-DCH insertion authority resource at random comprises: CRRI, TRRI and EI.
Preferably, described method further comprises:
Described subscriber equipment by carry professional indication SI information in enhanced media access control entity protocol Data Unit MAC-e PDU, sends to described Node B after realizing access at random;
Described Node B is described subscriber equipment allocate resource according to the SI information that receives, and described subscriber equipment carries out normal E-DCH transmission according to the resource of allotment.
Preferably, described Node B is that described subscriber equipment allocate resource comprises according to the SI information that receives:
If the buffer state of the SI information that Node B receives indication is 0, Node B correctly receives the back and returns to UE and confirm ACK information and reclaim and distribute to the not TTI resource of usefulness of described subscriber equipment;
If the buffer state of the SI information that Node B receives indication is not 0, Node B is a described subscriber equipment Resources allocation once more, by E-DCH absolute grant channel E-AGCH the resource of distributing is passed to described subscriber equipment, and be recovered as the fast E-DCH random access resource of described user equipment allocation.
Preferably, described Node B does not receive SI information, Node B notifies among the described subscriber equipment utilization residue TTI resource on one or more TTI to transmit, and up to receiving SI information or reaching maximum retransmission, reclaims resource on the remaining TTI by Node B then.
Preferably, described RNC and subscriber equipment are undertaken alternately by the radio resource control RRC agreement, and described RNC and base station are undertaken by base station application part NBAP agreement alternately.
A kind of resource allocation system, this system comprises: radio network controller (RNC), base station node B and subscriber equipment, wherein,
Described RNC is user equipment allocation uplink synchronous SYNC_UL sign indicating number and sends to described subscriber equipment, inserts at random so that described subscriber equipment initiates to strengthen special uplink channel E-DCH fast to base station node B;
Time-slot code channel resource that described RNC inserts at random for described user equipment allocation fast E-DCH from E-DCH shared resource pond and fast E-DCH be insertion authority resource and notifying user equipment at random, so that the resource index that described subscriber equipment shines upon according to the time-slot code channel resource that Node B sends is therefrom selected the resource of this subscriber equipment correspondence, wherein, the resource index of the time-slot code channel resource mapping of described Node B transmission sends to described Node B in advance by RNC.
As seen from the above technical solution, RNC is user equipment allocation uplink synchronous SYNC_UL sign indicating number and sends to described subscriber equipment, from E-DCH shared resource pond, divide the resource index mapping table of the time-slot code channel resource be used in fast E-DCH and insert at random, the mapping of time-slot code channel resource and fast E-DCH insertion authority resource and notifying user equipment at random for UE, both can guarantee of the use of fast E-DCH random access procedure to resource, can guarantee that again the resource that fast E-DCH inserts at random can be used for other purposes in obsolete situation, has improved the service efficiency of system resource;
Further, RNC is a user equipment allocation Midamble sign indicating number, and the resource index that UE shines upon according to the time-slot code channel resource that the FPACH message that Node B sends by FPACH is carried is therefrom selected the resource of the mandate of this subscriber equipment correspondence, by E-DCH transmission data.And in subsequent transmission, further carry out normal E-DCH transmission according to the resource of Node B allotment.Guaranteed with existing standard farthest compatible; The collision probability in the fast E-DCH random access procedure be can effectively reduce, thereby link and systematic function guaranteed.
Description of drawings
Fig. 1 is a resource allocation methods schematic flow sheet in the E-DCH random access procedure in the prior art.
Fig. 2 is resource allocation methods schematic flow sheet in the E-DCH random access procedure among the present invention.
Fig. 3 is division of resources schematic diagram in the fast E-DCH random access procedure among the present invention.
Fig. 4 is the resource index mapping table structural representation based on Fig. 3.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is further elaborated.
In the embodiment of the invention, RNC divides the resource index mapping table of the Midamble sign indicating number be used in fast E-DCH of the present invention and insert at random, time-slot code channel resource, the mapping of time-slot code channel resource and fast E-DCH insertion authority resource at random for UE from E-DCH shared resource pond, after Node B receives the SYNC_UL sign indicating number or Midamble sign indicating number of UE transmission, send FPACH message by FPACH to UE, and in FPACH message, carry the indication information that E-DCH inserts at random; UE therefrom selects the resource of the mandate of this subscriber equipment correspondence according to the indication information that receives, by E-DCH transmission data.
Fig. 2 is resource allocation methods schematic flow sheet in the fast E-DCH random access procedure among the present invention.As shown in Figure 2, comprise following steps:
Step 201, UE obtains time-slot code channel resource authorization information and fast E-DCH random access resource authorization message in advance;
In this step, UE obtains time-slot code channel resource authorization information and E-DCH resource authorization information in advance, can be the mode by system message broadcasting, also can be to connect in the process of setting up in Radio Resource control (RRC, RadioResource Control) to notify UE.
For mode by system message broadcasting, can select to be configured by the high-level signaling of the RNC of network side, high-level signaling comprises RRC agreement and the base station application part NBAP between RNC and the base station (the Node B Application Part) agreement between RNC and the subscriber equipment, by RNC time-slot code channel resource authorization information and the fast E-DCH random access resource authorization message that configures is issued to UE and Node B.
Time-slot code channel resource authorization information comprises the resource index mapping table information of time-slot code channel resource information and time-slot code channel resource mapping, or the resource index mapping table information and the carrier resource information of time-slot code channel resource information, the mapping of time-slot code channel resource.What the time-slot code channel resource of inserting for fast E-DCH at random with existing independent allocation was different is, in the present embodiment, the time-slot code channel resource is the part in E-DCH shared resource pond, also can be used for normal E-DCH transmission under obsolete situation, is a kind of half resources shared.
Resource index in the resource index mapping table shines upon one or more time-slot code channel resources, and just a resource index shines upon a time-slot code channel resource, or the mapping of a plurality of time-slot code channel combination of resources a resource index, i.e. division of resources method.(TS, Timeslot) spreading factor on (SF, Spreading Factor) is that two SF4 sign indicating number resources of 4 are that example describes with two time slots below.
Fig. 3 is division of resources schematic diagram in the fast E-DCH random access procedure among the present invention.As shown in Figure 3, among the figure, TS1 SF4_1, TS1 SF4_2, TS2 SF4_1, TS2 SF4_2 are 4 Resource Units, promptly distribute to the time-slot code channel resource of UE, Resource Unit can be made up to adapt to the variation of different UEs transmitted data amount size.Therefore, in the present invention, introduce the resource index mapping table.
Fig. 4 is the resource index mapping table structural representation based on Fig. 3.As shown in Figure 4, resource index uses the information field of 3 bits to indicate the time-slot code channel resource that UE can use in this time resource allocation process, is called fast E-DCH random access resource indication (E-DCH Access Resource Indicator).For example, resource is designated as the corresponding time-slot code channel resource TS1 SF4_1 of 1 expression, and resource is designated as the corresponding time-slot code channel resource TS1 SF4_2 of 2 expressions, and resource is designated as 3 expression corresponding time-slot code channel resource TS1SF2, i.e. TS1 SF4_1 and TS1 SF4_2.
In the practical application, when the time-slot code channel resource of distributing to UE greater than Fig. 3 in during the distributed time slot code channel resource, then the indication of the resource in the resource index mapping table need be represented with the more bits position.
In the practical application, because 8 SYNC_UL sign indicating numbers of a sub-district need be distributed to PRACH or E-RUCCH or identify fast E-DCH and insert at random in the prior art, the number of users that inserts at random as E-DCH more for a long time, the SYNC_UL sign indicating number resource of the Fen Peiing E-DCH access demand at random that can not satisfy the multi-user then.In this step, can also use the Midamble sign indicating number to replace the SYNC_UL sign indicating number to finish the uplink synchronous function conditionally by distributing the Midamble sign indicating number to UE in advance, solve the problem of SYNC_UL sign indicating number resource anxiety, the SYNC_UL sign indicating number is similar with distributing, and UE obtains pre-assigned Midamble sign indicating number.UE uses the Midamble sign indicating number specifically can be as follows:
Timer is set on UE and sets timing T1, UE judges the transmission time interval of a current time and a preceding uplink synchronizing signals, if the time interval is in time T 1, then send the Midamble sign indicating number, be used for uplink synchronous, if interval greater than T1, then send the SYNC_UL sign indicating number, be used for uplink synchronous.
Step 202, UE sends to Node B and is designated the SYNC_UL signal that fast E-DCH inserts at random;
In this step, UE is according to pre-configured data volume thresholding, when UE judges that the data to be transferred amount surpasses the data volume thresholding of configuration, select fast E-DCH to insert at random, certainly, also can select PRACH to insert at random or normal E-DCH inserts at random, concrete selection can further be provided with in advance; Do not surpass the data volume thresholding of configuration if judge the data to be transferred amount, can select PRACH to insert.Comprise SYNC_UL sign indicating number or Midamble sign indicating number in the SYNC_UL signal that sends.
Step 203, Node B receives the SYNC_UL signal, sends FPACH message by FPACH to UE, carries the indication information that fast E-DCH inserts at random;
In this step,, therefore need change existing FPACH message owing to need in FPACH message, carry the indication information that fast E-DCH inserts at random.
In this step, Node B determines to carry out HSUPA according to SYNC_UL sign indicating number that receives or Midamble sign indicating number, and 7 bits in the existing FPACH message keep the position and are used for transmitting a part of E-DCH resource authorization information.Among the present invention, do not need to use the RACH message transmit power level information territory of 7 bits in the FPACH message, therefore, the information field that can utilize the RACH message transmit power level of the reservation position of 7 bits and 7 bits to amount to 14 bit lengths transmits fast E-DCH random access resource indication of the present invention and a part of E-DCH resource authorization information.Wherein,
Content and prior art that fast E-DCH random access resource authorization messages comprises are similar, comprise power information and physical resource information, specifically, comprise following information:
Power resource relevant information (the PRRI of 5 bits, Power Resource RelatedInformation), sign indicating number resource related information (the CRRI of 5 bits, Code Resource RelatedInformation), time interval resource relevant information (the TRRI of 5 bits, Timeslot Resource RelatedInformation), the E-DCH of 2 bits mixes automatic repeat requests and confirms indicating channel (E-HICH, E-DCH Hybrid Automatic Repeat Request Acknowledgement IndicatorChannel) indication (EI, E-HICH Indicator) and the enhancing ascending control channel (E-UCCH of 3 bits, Enhanced Uplink Control Channel) quantity indication (ENI, E-UCCHNumber Indicator).
Consider the situation in the practical application, PRRI and ENI information can be carried in the information field of 14 bit lengths, certainly, also PRRI (5 bit) and ENI (3 bit) information can be carried after suitably handling, the method for processing can be to dwindle the dynamic span of PRRI and ENI information and/or improve quantization granularities.
In addition, also need to carry the available time-slot code channel resource that is used for transfer of data in the indexed resource assigning process in the FPACH message, fast E-DCH random access resource indication just, i.e. resource indication.Along with available time-slot code channel resource increases, the bit number that needs also increases thereupon.
Further, for identify the FPACH resource allocation term of validity in time be single effectively or continuous and effective, it is the mode of the resource allocation process employing finite length of FPACH, among the present invention, introduce resource continuous time indication (RDI, Resource Duration Indicator), the RDI indicating bit that increases by 3 bits in FPACH message is represented Transmission Time Interval TTI (TransmissionTiming Interval) number of distributing.
Like this, in the information field of 14 bit lengths, the information that must comprise has fast E-DCH random access resource indication information, alternatively, can comprise: PRRI and ENI information, and/or RDI indication information.
If only carry fast E-DCH random access resource indication information in the FPACH message, be that the indication information that fast E-DCH inserts at random comprises fast E-DCH random access resource indication information, all fast E-DCH random access resource authorization messages are by the mode of system message broadcasting, or in the process that the RRC connection is set up, notify UE, that is to say that all fast E-DCH that RNC will dispose insertion authority resource at random are issued to UE.
If carry fast E-DCH random access resource indication information, PRRI and ENI information and/or RDI indication information in the FPACH message, be that the indication information that fast E-DCH inserts at random comprises fast E-DCH random access resource indication information, and PRRI and ENI information and/or RDI indication information, the mode that other fast E-DCH random access resource authorization message is broadcasted by system message, or in the process that the RRC connection is set up, notify UE.
Step 204, UE receives and carries the FPACH message that fast E-DCH inserts indication information at random, according to indication information that receives and the fast E-DCH random access resource authorization message of obtaining in advance, obtains the resource of mandate, initiates the E-DCH transfer of data to Node B;
In this step, UE receives FPACH message, according to the fast E-DCH random access resource authorization message of carrying in fast E-DCH random access resource authorization message of obtaining in advance and the indication information, obtain the resource of mandate, comprise time-slot code channel resource and fast E-DCH insertion authority resource at random, realize inserting at random, and after realizing access at random, on E-DCH, select own operable speed and begin transfer of data.
In the practical application, in order to improve the utilization ratio of system resource, can also be after realizing that fast E-DCH inserts at random, when the beginning transfer of data, UE can also be by carrying professional indication (SI, Service Indicator) information in enhanced media access control entity protocol Data Unit (MAC-e PDU, Medium Access Control Protocol EntitiesProtocol Data Unit), send to NodeB, carry out follow-up flow process.
Step 205, Node B is the UE allocate resource according to the SI information that receives, UE carries out normal E-DCH transmission according to the resource of allotment.
In this step, Node B is that UE distributes follow-up resource according to the SI information that receives, if the buffer state of the SI that the packet that receives carries indication is 0, Node B correctly receives the back and returns affirmation (ACK to UE, Acknowledge) information, Node B and UE discharge the not resource of usefulness of residue automatically, further, Node B is recovered in the not TTI resource of usefulness of residue that FPACH distributes, distributes to other UE or as other purposes.If the buffer state of the SI that the packet that receives carries indication is not 0, Node B is that UE distributes more resources, and by E-DCH absolute grant channel (E-AGCH, E-DCH Absolute Grant Channel) resource of distributing is passed to UE, UE is after receiving the resource of authorizing on the E-AGCH, the resource that former FPACH authorizes ceases to be in force automatically, and the resource that former FPACH authorizes can be reclaimed by Node B, distributes to other UE or is used as other purposes.
For instance, supposed to distribute on the FPACH resource on 4 TTI, the packet that UE sends on first TTI carries SI information, if the buffer state of this SI information indication is 0, show that this packet is correct the 1st TTI transmission, Node B receives this SI information indication, returns ACK to UE, simultaneously, will recycle in the resource on remaining 3 TTI that distribute on the FPACH; If the buffer state of this SI information indication is not 0, show that this UE need apply for that more resources transmits, Node B distributes corresponding resource by E-AGCH to UE; If this packet is not correctly received, just Node B does not receive SI information, Node B notice UE retransmits, UE can use among follow-up 3 TTI the resource on one or more TTI to transmit, up to receiving ACK information or the Node B deallocated resources that Node B sends or reaching maximum retransmission, reclaim resource on the remaining TTI by Node B then.
Node B is just can change normal E-DCH transmit status over to behind the UE allocate resource according to SI information, this normal E-DCH transmit status does not need to carry out E-DCH uplink random access control channel (E-RUCCH, E-DCH Random access Uplink Control Channel) access procedure.
If UE does not receive ACK information on the resource of distributing, then UE is automatically retracted back into normal E-DCH process of transmitting or adopts PRACH to insert, if return back to normal E-DCH transmit status, UE need carry out E-RUCCH and insert to Node B SI reporting information, carry out resource allocation by Node B, UE retransmits at the MAC layer; Insert if return back to PRACH, UE retransmits at rrc layer.
Among the present invention in the fast E-DCH random access procedure in the UE of resource allocation system and network equipment structure and the prior art UE identical with the network equipment structure, network equipment comprises RNC and Node B, does not repeat them here.This system comprises: UE, RNC and Node B, wherein,
UE, the resource index mapping table, fast E-DCH that is used for obtaining time-slot code channel resource that fast E-DCH inserts at random, the mapping of time-slot code channel resource from RNC be the insertion authority resource at random, and is designated SYNC_UL sign indicating number and the Midamble sign indicating number that fast E-DCH inserts at random; When determining to select fast E-DCH to insert at random, send to Node B and be designated SYNC_UL sign indicating number or the Midamble sign indicating number that fast E-DCH inserts at random, according to the indication information of the Node B transmission that receives and the resource of obtaining in advance, obtain the resource of mandate.
The indication information that Node B sends comprises fast E-DCH random access resource indication information, also can comprise fast E-DCH random access resource indication information and RDI indication information, also can comprise fast E-DCH random access resource indication information and PRRI and ENI information, can also comprise above-mentioned three kinds of information simultaneously, i.e. fast E-DCH random access resource indication information, PRRI and ENI information, RDI indication information.
UE is after obtaining the resource of mandate, can on E-DCH, select own operable speed in the subsequent process and begin transfer of data, UE can also carry SI information by MAC-e PDU, send to Node B, Node B is the UE allocate resource according to the SI information that receives, and UE carries out normal E-DCH transmission according to the resource of allotment.
RNC, the resource index mapping table of the time-slot code channel resource that is used to UE to allocate fast E-DCH in advance to insert at random, the mapping of time-slot code channel resource, fast E-DCH be insertion authority resource and be designated SYNC_UL sign indicating number and the Midamble sign indicating number that fast E-DCH inserts at random at random, and being used for of will distributing time-slot code channel resource that fast E-DCH inserts at random, resource index mapping table that the time-slot code channel resource is shone upon, fast E-DCH insertion authority resource and SYNC_UL sign indicating number and Midamble sign indicating number are sent to UE at random;
Node B is used to receive the SYNC_UL signal that UE sends, and sends FPACH message by FPACH to this UE, and carry the indication information that fast E-DCH inserts at random in described FPACH message;
Receiving the SI information that UE carries by MAC-e PDU, is the UE allocate resource according to the SI information that receives, and the resource of allotment is sent to UE.
Wherein, fast E-DCH at random CRRI, TRRI and the EI information parameter in the insertion authority resource information can dispose by high-level signaling by RNC according to actual needs; Parameter in PRRI and the ENI information can be selected to be disposed by high-level signaling by RNC, perhaps disposes in real time by FPACH.
As seen from the above-described embodiment, RNC is used in SYNC_UL sign indicating number and the Midamble sign indicating number that fast E-DCH inserts at random to the UE branch in advance, the time-slot code channel resource information, the resource index mapping table of time-slot code channel resource mapping and fast E-DCH insertion authority resource at random are sent to UE, when UE judges that need carry out fast E-DCH inserts at random, send SYNC_UL sign indicating number or the Midamble sign indicating number that the sign fast E-DCH inserts at random to Node B, Node B receives SYNC_UL sign indicating number or Midamble sign indicating number, carry the FPACH message that fast E-DCH inserts indication information at random by FPACH to the UE transmission, UE is according to indication information that receives and the resource of obtaining in advance, obtain the resource of mandate, by E-DCH transmission data.And in transfer of data, utilize MAC-e PDU to carry SI information, and Node B is the UE allocate resource according to the SI information that receives, UE carries out normal E-DCH transmission according to the resource of allotment.Resource allocation methods provided by the invention, can with normal E-DCH transmission course sharing E-PUCH physical resource, both can guarantee of the use of fast E-DCH random access procedure to resource, can guarantee that again the resource that fast E-DCH inserts at random can be used for other purposes in obsolete situation, has improved the service efficiency of system resource.Further, by on the FPACH channel, carrying complete PRRI information, can guarantee that the UE that fast E-DCH inserts at random finishes the fast E-DCH random access procedure under the prerequisite that does not change normal E-DCH transformat combination (E-TFC) selection course, guarantee with existing standard farthest compatible.And, by keep using the Midamble sign indicating number conditionally under the thick synchronous situation in system, finish the uplink synchronous function in the fast E-DCH random access procedure, can effectively reduce the collision probability in the fast E-DCH random access procedure, thereby guarantee link and systematic function.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a resource allocation methods is characterized in that, this method comprises:
Radio network controller (RNC) is user equipment allocation uplink synchronous SYNC_UL sign indicating number and sends to described subscriber equipment, inserts at random so that described subscriber equipment initiates to strengthen special uplink channel E-DCH fast to base station node B;
And RNC is used for time-slot code channel resource that fast E-DCH inserts at random and fast E-DCH insertion authority resource and notifying user equipment at random for user equipment allocation from E-DCH shared resource pond, so that the resource index that described subscriber equipment shines upon according to the time-slot code channel resource that Node B sends is therefrom selected the resource of this subscriber equipment correspondence, wherein, the resource index of the time-slot code channel resource mapping of described Node B transmission sends to described Node B in advance by RNC.
2. the method for claim 1, it is characterized in that, described RNC sends the resource index table that comprises a plurality of time-slot code channel resource mappings in advance to described Node B, described Node B selects a resource index and is sent to described subscriber equipment from described resource index table, so that the resource index that the time-slot code channel resource that described subscriber equipment sends according to Node B is shone upon is therefrom selected the resource of this subscriber equipment correspondence.
3. the method for claim 1 is characterized in that, described method further comprises: RNC is described user equipment allocation Midamble sign indicating number;
Described subscriber equipment is judged the transmission time interval of a current time and a preceding uplink synchronizing signals, if the time interval is in default timing, then insert at random by send Midamble sign indicating number initiation fast E-DCH to Node B, if interval greater than default timing, then insert at random by send SYNC_UL sign indicating number initiation fast E-DCH to base station node B.
4. method as claimed in claim 2 is characterized in that, described resource index table comprises the resource index of single time slot code channel resource mapping, and/or the resource index of a plurality of time-slot code channel combination of resources mapping.
5. the method for claim 1 is characterized in that, described fast E-DCH insertion authority resource at random comprises:
Power resource relevant information PRRI, up-enhancing control channel E-UCCH quantity indication ENI information, sign indicating number resource related information CRRI, time interval resource relevant information TRRI and E-DCH mix automatic repeat requests and confirm indicating channel E-HICH indication information EI.
6. the method for claim 1 is characterized in that, described Node B is sent to subscriber equipment by the resource index that indication information shines upon the time-slot code channel resource.
7. method as claimed in claim 6 is characterized in that, described indication information further comprises resource continuous time indication RDI information, is used to identify the Transmission Time Interval TTI number of distribution.
8. as claim 6 or 7 described methods, it is characterized in that described indication information further comprises PRRI and ENI information;
Described fast E-DCH insertion authority resource at random comprises: CRRI, TRRI and EI.
9. method as claimed in claim 8 is characterized in that, described method further comprises:
Described subscriber equipment by carry professional indication SI information in enhanced media access control entity protocol Data Unit MAC-e PDU, sends to described Node B after realizing access at random;
Described Node B is described subscriber equipment allocate resource according to the SI information that receives, and described subscriber equipment carries out normal E-DCH transmission according to the resource of allotment.
10. method as claimed in claim 9 is characterized in that, described Node B is that described subscriber equipment allocate resource comprises according to the SI information that receives:
If the buffer state of the SI information that Node B receives indication is 0, Node B correctly receives the back and returns to UE and confirm ACK information and reclaim and distribute to the not TTI resource of usefulness of described subscriber equipment;
If the buffer state of the SI information that Node B receives indication is not 0, Node B is a described subscriber equipment Resources allocation once more, by E-DCH absolute grant channel E-AGCH the resource of distributing is passed to described subscriber equipment, and be recovered as the fast E-DCH random access resource of described user equipment allocation.
11. method as claimed in claim 9, it is characterized in that, described Node B does not receive SI information, Node B notifies among the described subscriber equipment utilization residue TTI resource on one or more TTI to transmit, up to receiving SI information or reaching maximum retransmission, reclaim resource on the remaining TTI by Node B then.
12. the method for claim 1 is characterized in that, described RNC and subscriber equipment are undertaken alternately by the radio resource control RRC agreement, and described RNC and base station are undertaken by base station application part NBAP agreement alternately.
13. a resource allocation system, this system comprises: radio network controller (RNC), base station node B and subscriber equipment, wherein,
Described RNC is user equipment allocation uplink synchronous SYNC_UL sign indicating number and sends to described subscriber equipment, inserts at random so that described subscriber equipment initiates to strengthen special uplink channel E-DCH fast to base station node B;
It is characterized in that,
Time-slot code channel resource that described RNC inserts at random for described user equipment allocation fast E-DCH from E-DCH shared resource pond and fast E-DCH be insertion authority resource and notifying user equipment at random, so that the resource index that described subscriber equipment shines upon according to the time-slot code channel resource that Node B sends is therefrom selected the resource of this subscriber equipment correspondence, wherein, the resource index of the time-slot code channel resource mapping of described Node B transmission sends to described Node B in advance by RNC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101027222A CN101547510B (en) | 2008-03-25 | 2008-03-25 | Method and system for resource allocation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101027222A CN101547510B (en) | 2008-03-25 | 2008-03-25 | Method and system for resource allocation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101547510A CN101547510A (en) | 2009-09-30 |
| CN101547510B true CN101547510B (en) | 2010-08-25 |
Family
ID=41194306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101027222A Expired - Fee Related CN101547510B (en) | 2008-03-25 | 2008-03-25 | Method and system for resource allocation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101547510B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI1008954B1 (en) * | 2009-03-13 | 2021-05-11 | Sharp Kabushiki Kaisha | random access problem detection method, mobile station apparatus, and integrated circuit |
| CN102056312A (en) * | 2009-10-29 | 2011-05-11 | 华为技术有限公司 | Resource management method and device for M2M communication |
| CN102088791A (en) * | 2009-12-03 | 2011-06-08 | 普天信息技术研究院有限公司 | Dynamic configuration method for E-PUCH (Enhance-Physical Uplink Channel) resources |
| CN102223412B (en) * | 2010-06-18 | 2014-06-25 | 开曼群岛威睿电通股份有限公司 | Machine type communication method and device |
| CN102291846B (en) * | 2010-06-21 | 2016-01-20 | 中兴通讯股份有限公司 | A kind of accidental access method and realize the system of Stochastic accessing |
| CN101924702A (en) * | 2010-08-26 | 2010-12-22 | 华为技术有限公司 | Service data transmission method and device |
| CN102413581B (en) * | 2011-12-02 | 2014-08-06 | 电信科学技术研究院 | Method and system for reserving channel time slot by using initial access node |
| US20130195027A1 (en) * | 2012-01-30 | 2013-08-01 | Qualcomm Incorporated | Method and Apparatus for Channel Fallback in Enhanced Cell Forward Access Channel Dedicated Channel |
| ES2733824T3 (en) | 2012-06-28 | 2019-12-03 | Huawei Tech Co Ltd | System to adjust resource settings, radio network controller and base station |
| WO2014110767A1 (en) | 2013-01-17 | 2014-07-24 | 华为技术有限公司 | Method and device for acquiring corresponding relationship between random access parameter and resource |
| WO2015061943A1 (en) * | 2013-10-28 | 2015-05-07 | 华为技术有限公司 | Resource scheduling method, apparatus and system |
| CN108617003B (en) * | 2016-12-12 | 2021-11-19 | 展讯通信（上海）有限公司 | Method, device and user equipment for fast random access |
| CN109891965B (en) * | 2016-12-23 | 2023-05-02 | 富士通株式会社 | Uplink transmission control method and device and communication system thereof |
| CN108391313B (en) * | 2017-02-03 | 2022-11-15 | 中兴通讯股份有限公司 | Indication method of random access resource, base station and terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1289328A1 (en) * | 2001-08-28 | 2003-03-05 | Lucent Technologies Inc. | A method of sending control information in a wireless telecommunications network, and corresponding apparatus |
| CN101026867A (en) * | 2006-02-23 | 2007-08-29 | 鼎桥通信技术有限公司 | HSDPA resource management method for multi-carrier TD-SCDMA system |
| CN101056457A (en) * | 2006-06-29 | 2007-10-17 | 华为技术有限公司 | Signal detection method of the channel in the E-DCH |
| CN101132599A (en) * | 2006-08-20 | 2008-02-27 | 中兴通讯股份有限公司 | Code track resource allocation method for time division code division multiple access system high-speed ascending grouping access |
-
2008
- 2008-03-25 CN CN2008101027222A patent/CN101547510B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1289328A1 (en) * | 2001-08-28 | 2003-03-05 | Lucent Technologies Inc. | A method of sending control information in a wireless telecommunications network, and corresponding apparatus |
| CN101026867A (en) * | 2006-02-23 | 2007-08-29 | 鼎桥通信技术有限公司 | HSDPA resource management method for multi-carrier TD-SCDMA system |
| CN101056457A (en) * | 2006-06-29 | 2007-10-17 | 华为技术有限公司 | Signal detection method of the channel in the E-DCH |
| CN101132599A (en) * | 2006-08-20 | 2008-02-27 | 中兴通讯股份有限公司 | Code track resource allocation method for time division code division multiple access system high-speed ascending grouping access |
Non-Patent Citations (4)
| Title |
|---|
| 3GPP TSG RAN.Enhanced uplink |
| 3GPP TSG RAN.Enhanced uplink;Overall description;Stage 2(Release 8).《3GPP TS 25.319 v8.0.0》.2007, * |
| Overall description |
| Stage 2(Release 8).《3GPP TS 25.319 v8.0.0》.2007, |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101547510A (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101547510B (en) | Method and system for resource allocation | |
| CN101674661B (en) | Random access method in long term evolution system | |
| JP4675167B2 (en) | Channel allocation method, radio communication system, base station apparatus, user terminal | |
| JP5143234B2 (en) | Fast access to dedicated uplink (E-DCH) resources with previously used configurations | |
| CN101340714B (en) | Stochastic access method of TD-SCDMA uplink enhancing system | |
| CN1291057A (en) | Method for distributing public block channel in next generation communication system | |
| CN101472343B (en) | Random access method and system | |
| CN101340230A (en) | Stochastic access method of TD-SCDMA uplink enhancing system | |
| CN101926105B (en) | Method of addressing and finding address of user terminal during transmitting of enhanced-special transmitting channel | |
| KR101304646B1 (en) | Method, system and device for transmitting feedback information | |
| CN101594274B (en) | Initial access method and transmission method of initial access signaling | |
| CN101562896B (en) | Stochastic access method based on reinforced-special transmission channel | |
| US8279815B2 (en) | Resource allocation apparatus and method for reducing overhead in mobile communication system | |
| CN101521938A (en) | Resource allocation method for enhanced-dedicated transmission channel | |
| CN101534564B (en) | Random accessing method based on E-DCH transmission channel in TD-SCDMA system | |
| CN101547440B (en) | Method for addressing user equipment during transmission of common control channel on E-DCH | |
| CN101489284B (en) | Enhanced FACH access method and system based on subscriber identification broadcast | |
| JP4772895B2 (en) | Channel assignment method | |
| CN101500241B (en) | Stochastic signature sequence allocation method in enhanced FACH base on newly added signature | |
| CN101286790B (en) | Keeping method of uplink synchronization for time division synchronous code division multi-address accessing system | |
| CN101677465B (en) | MAC entity allocation method and device in CCCH signalling transmission | |
| CN101547498A (en) | Uplink access method for CELL_FACH state in TDD system | |
| CN101521936B (en) | Method and device for utilizing down channel resources | |
| CN101500266B (en) | Stochastic signature sequence allocation method in enhanced FACH base on multiple frequency points | |
| CN103428864A (en) | Physical resource indication method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20160325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |