CN103228054A - Method and device for sending and receiving non-competition-based random access response messages - Google Patents
Method and device for sending and receiving non-competition-based random access response messages Download PDFInfo
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Abstract
The invention provides a method and a device for sending and receiving non-competition-based random access response messages, wherein the method for sending the random access response messages to user terminals in a base station comprises the following steps: receiving non-competition-based random access lead codes coming from multiple user terminals and randomly accessed through a cell; and adopting an optimized random access response message format to send optimized random access response messages accessed in the cell to the user terminals, wherein the optimized random access response messages comprise timing advanced messages, and the optimized random access response message format utilizes padding bits in traditional random access response messages and adopts an indicator to distinguish RAP (Rrandom Access Response) information or real filling information, or utilizes media access control elements to send the non-competition-based random access response messages of the user terminals, which are accessed randomly through the cell.
Description
Technical field
The present invention relates to accidental access response message, relate in particular to the method and apparatus that in base station and user terminal, sends and receive based on non-competing accidental access response message.
Background technology
State according to present standard, version 11 (R11) is at Physical Random Access Channel (Physical Random Access Channel, access at random PRACH) (Random Access RA) compares with version 8,9,10 (R8/9/10), has many new features:
● (contention-free RA CFRA) can be by base station triggers, in that (Scell) carries out from the sub-district based on non-competing access at random for R11.
● by base station triggers, carry out from sub-district (Scell), trigger under can be based on the non-competing CFRA of access at random owing to following any scene:
-(secondary Time Advance Group, up (UL) sTAG) are synchronously from the timing advance group;
-determine the up timing reference point of sTAG;
-determine TAG under the Scell
● Rll CFRA accidental access response (Random Access Response, RAR also are message 2 (Message 2)) can have the function (cross-scheduling) of striding cell scheduling, also can not have the function of striding cell scheduling.What is called is striden cell scheduling, is meant that the schedule information at a sub-district to a user terminal may appear in other sub-districts.
In traditional R8, R9 and R10, the fixing 6bytes size that RAR message has is shown in following Fig. 1,2 and 3.
For R8, R9 and R10, when inserting at random, user terminal must be and the base station between lost uplink synchronous, therefore and the base station between obtain synchronously again before, can not carry out any uplink.Then, the ascending resource in RAR distributes (Uplink grant, UL grant) can be used to begin as soon as possible uplink.
Summary of the invention
Yet in R11, particularly for the access of carrying out on Scell at random, it not is necessary that ascending resource distributes, even because user terminal loses synchronously with Scell, it still can carry out uplink on Pcell.Especially for the random process on Scell that triggers under above-mentioned three kinds of situations mentioning, only need TA (Time Advance, timing advance), UL grant is not necessary, and is redundant.If UL grant territory still is retained among the RAR, ascending resource need also be distributed for these situations in the base station, thereby can reduce the ascending resource utilance, has distributed its unwanted resource because the base station is a user terminal.Therefore, in R11, the ascending resource allocation field is optional.
In addition, for CFRA, (Temporary Cell-Radio Network Temporary Identifier TC-RNTI) is fully redundance to interim sub-district-Radio Network Temporary Identifier, and is nonessential.Be in agreement now, only support UE on Scell, to carry out CFRA.Therefore, be necessary very much to optimize the CFRA RAR form of R11, to improve the UL resource utilization and to improve the RAR efficiency of transmission.
In addition, because R11 supports to stride cell scheduling, may cause such situation and stride cell scheduling:
-a plurality of user terminals may send identical random access lead code to same base station on different sub-districts, and this base station sends on same sub-district the accidental access response message that a plurality of user terminal fed back.At this moment, because these a plurality of user terminals adopt identical lead code, which accidental access response message then different user terminals can't discern at this user terminal, also the problem that promptly exists lead code to obscure.
At present, in R11, how to transmit descending RAR message still among discussing, and have following several optional modes:
B1. (Common Searching Space CSS) goes up based on RA-RNTI the PDCCH that addressing is used for message 2 (Msg 2, also, RAR message) in Pcell common search space;
B2. (Common Searching Space CSS) goes up the PDCCH that last addressing based on RA-RNTI is used for message 2 (Msg 2, also, RAR message) in the Pcell/Scell common search space that is scheduled;
B3. (UE-specific Searching Space CSS) goes up based on C-RNTI the PDCCH that addressing is used for message 2 (Msg 2, also, RAR message) in the user terminal particular search space of Pcell that has disposed PDCCH or Scell.
Choosing of above-mentioned 3 kinds of optional modes will influence new RAR format design.In these options, b2 and b3 all have bigger supporting rate in RAN2.Send RAR if choose the b2 mode, the RAR form must be redesigned so, to solve the problem of obscuring of lead code.Send RAR if choose the b3 mode, must design new MAC CE (medium access control control element Media Access Control Control Element) form, to be used for the transmission of RAR load.Also promptly, no matter be to select the b2 mode or select the b3 mode, the RAR payload format of R11 all must be redesigned, and therefore, also needs to optimize again R11RAR, does not influence the operation of the user terminal of existing R10 simultaneously.
For solving at least one above-mentioned problem, according to a first aspect of the invention, proposed a kind of method that in the base station, is used for sending accidental access response message, may further comprise the steps to user terminal: receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code; Adopt the accidental access response message form of optimizing to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message.
According to a second aspect of the invention, provide a kind of method that inserts at random in user terminal, may further comprise the steps: the base station to this user terminal of administration sends non-competing random access lead code; The accidental access response message of the optimization that the accidental access response message form that reception is optimized from the employing of base station sends, wherein, comprise timing advance information in the accidental access response message of this optimization, and the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message or utilize medium access control control element to be sent in inserts at random from the sub-district based on non-competing accidental access response message.
According to a third aspect of the invention we, a kind of first device that is used for sending to user terminal accidental access response message in the base station is provided, comprise: first receiving device, be used to receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code; First dispensing device, be used to adopt the accidental access response message form of optimization to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message.
According to a forth aspect of the invention, provide a kind of second device that inserts at random in user terminal, having comprised: second dispensing device is used for sending non-competing random access lead code to the base station of this user terminal of administration; Second receiving system, be used to receive the accidental access response message of the optimization of the accidental access response message form transmission of optimizing from the employing of base station, wherein, comprise timing advance information in the accidental access response message of this optimization, and the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message or utilize medium access control control element to be sent in inserts at random from the sub-district based on non-competing accidental access response message.
Description of drawings
Read following detailed description to non-limiting example by the reference accompanying drawing, further feature of the present invention, purpose and advantage will be more obvious.
Fig. 1 shows the schematic diagram of the MAC head of a kind of RAR of being used for of the prior art;
Fig. 2 shows the schematic diagram that another kind of the prior art is used for the MAC head of RAR;
Fig. 3 shows the schematic diagram of RAR load of the prior art.
Fig. 4 shows the schematic diagram according to the MAC head of the RAR of a specific embodiment of the present invention;
Fig. 5 shows the schematic diagram according to the load of the RAR of a specific embodiment of the present invention;
Fig. 6 shows the schematic diagram according to the load of the RAR of another specific embodiment of the present invention;
Fig. 7 shows the systems approach flow chart according to a specific embodiment of the present invention;
Fig. 8 shows the device block diagram according to a specific embodiment of the present invention.
Wherein, same or analogous Reference numeral is represented same or analogous steps characteristic or device/module.
Embodiment
As mentioned above, for the CFRA RA scene of several R11 of (Scell) from the sub-district, only the TA field is essential, and the ascending resource distribution does not need.And TC-RNTI does not need fully yet.Therefore the inventor proposes to optimize the CFRA RA form of R11:
● TA is essential;
● it is optional that ascending resource distributes;
● the TC-RNTI field is removed.For the RSR that strides cell scheduling, specific sub-district ID also is that specific cell ID is provided, to solve the problem that lead code is obscured.
So far, in R11, how to send from yet not decision of sub-district RAR MAC PDU.But as above analysis, no matter which option (b2/b3) is finally selected, new RAR form must be defined.Especially, if b2 is finally chosen, specific sub-district ID should be comprised in the RAR load, to solve the situation that lead code is obscured.Here can find out that the CFRA operation of R11 can provide the chance of the CFRA RAR form of optimizing R11, to improve the transmitting efficiency of ascending physical signal resource utilization and RAR MAC PDU.
As mentioned above, will influence the design of new RAR form to the final decision of the RAR that how to send R11.Being difficult to that prediction is any will be selected, so the application provides the RAR format design of new R11 respectively for b2 and b3 both of these case.
In the method for the invention, as shown in Figure 7, at first, in step S10, user terminal sends non-competing random access lead code to the base station of this user terminal of administration.
Then, in step S11, the base station receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code CFRA preamble.
Then, in step S12, the base station adopts the accidental access response message form of optimizing to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler (being applicable to scheme b 2) in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element (being applicable to scheme b 3) to be sent in to insert at random from the sub-district based on non-competing accidental access response message.Then, in step S13, user terminal receives the accidental access response message of the optimization of the accidental access response message form transmission of optimizing from the employing of base station, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler (being applicable to scheme b 2) in traditional accidental access response message, or the user terminal that utilizes medium access control control element (being applicable to scheme b 3) to be sent in to insert at random from the sub-district based on non-competing accidental access response message, thereby finish based on non-competing random access procedure.
Below, will carry out concrete description at scheme b 2 and scheme b 3 respectively.
Scheme one: b2 is final decision
For this situation, specific sub-district ID must be comprised among the CFRA RAR of R11, and this RAR contains and strides cell scheduling configuration, obscures to solve potential lead code.Here at first propose, when the sub-district is added into, (Radio Resource Control, RRC) message is sent to UE to specific sub-district ID by Radio Resource control.But we know, set up process because main plot (Pcell) is provided with the RRC connection that is based on R8, and UE can't get access to the specific sub-district ID of its main plot.
In theory, for the CFRA RA of R11, whether base station eNB need can determine ascending resource to distribute.Therefore all CFRA RA can both be optimised, no matter and whether it is striden cell scheduling.The CFRA RAR that has two kinds of R11: have and do not have and stride the cell scheduling configuration, therefore need to consider two types optimization:
Option one:, see following 1.1 for details for the new RAR form of R11CFRA RA design
Option 2:, see following 1.2 for details only to having the new RAR form of R11 CFRA RA design of striding cell scheduling configuration
For option one, can realize the efficient higher than option 2, this is because for option 2, traditional RAR form is used for striding not having of R11 the CFRA RAR of cell scheduling configuration.Therefore, though dispensable, redundant ascending resource distributes and TC-RNTI is comprised in the RAR load.
Different options will cause different RAR forms, and this will discuss respectively below:
1.1 be used for the new RAR form of R11CFRA, also, option one
For this option, all R11 CFRA RAR can be optimised:
● the TA field is essential
● it is that optionally this is decided by base station eNB that ascending resource distributes.This means that the ascending resource allocation field only exists where necessary
● TC-RNTI does not need, but the specific involved RAR that is used for of sub-district ID.Relate to the specific cell ID that need be used for not having the RAR that strides the cell scheduling configuration, two sub-options are provided, will describe in detail hereinafter
Therefore new RAR form must satisfy following requirement:
● require R1: CFRA RAR information and other RAR information (also promptly, CBRA RAR, and the RAR of the CFRA of R10 and former version) of R11 are distinguished;
● require the CFRA user equipment (UE) of R2:R11 must know exactly whether RAR exists or only be to fill;
● require R3: indicate clearly whether the ascending resource distribution exists;
● require R4: solve potential lead code and obscure.
Table one
The principle of R10 definition can be used to indicate the end of first and the beginning of second portion.For R10 UE and the R11 UE that has CBRA, second portion is regarded as filling information, and is left in the basket.Therefore, to R10 and before the UE of version and R11 carry out the not influence of UE operation of CBRA.For the UE CFRA of R11, it must attempt in second portion, finding it the sign of access at random (Random Access Identifier, RAID) and corresponding RAR load information.In first, the rule of R10 definition is used to RAID information is separated with corresponding RAR load information.This R11 UE that is also had CFRA is used to locate the beginning of second portion.Therefore for the UE operation of R10 and R11, can't have problems.
● E/P=0/0: do not have RAR information;
● E/P=1/1: follow-up is RAR information
● E/P=0/1: be used to indicate this last RAID information byte
● E/P=1/0: keep
● T=1, ascending resource distributes in the RAR load that is comprised in correspondence
● T=0, do not contain the ascending resource allocation field in the RAR of correspondence load.
● sub-option one: specific cell ID is comprised in the RAR load, to discern this sub-district of ongoing corresponding RA process, no matter whether this RAR strides cell scheduling.If the carrier number that the base station is supported is less than 8, then the sub-district ID of 3bit is just passable.
● sub-option 2: specific sub-district ID only is comprised in and has among the RAR that strides the cell scheduling configuration.
-for sub-option one, the CFRA RAR of all R11 will comprise specific sub-district ID, to represent the related occurent sub-district of RA process.As the above proposed, when the sub-district is added into, the UE of R11 will obtain for it all configurations from the specific cell ID of sub-district by RRC message.The problem of only depositing is that UE does not receive the specific cell ID for its main plot.But the UE of R11 can carry out CFRA in its main plot certainly.Therefore, this programme is for the UE of R11, and this specific cell ID that is used for its main plot is 000.And base station eNB does not use " 000 " to indicate any other sub-district.Because use 3 bits, promptly 000 expression UE carries out CFRA on the main plot, and therefore, if adopt the Cell ID of 3-bit, this scheme is effective when only 7 sub-districts being supported at the most in the base station, and this is for R11, and 7 sub-districts are enough.And we know that the RAR in the main plot can't be configured to have and stride the cell scheduling function.Therefore, to have the sub-district specific ID be 000 RAR if UE detects, and user terminal will be known so: this RAR is used for the PRACH that the UE of R11 carries out on its main plot, and the sub-district of transmitting this RAR is the main plot of this UE.And for other values, sub-district ID content can clearly indicate the ongoing sub-district of corresponding RA process.Therefore, each UE can clearly find its RAR load information separately.
In addition, the field among the E/T/RAID " T " will correctly be represented the length of corresponding RAR load information:
If " T "=1, ascending resource distribute to exist, so RAR load is 5 bytes, and last byte is R/R/R/R/R/ sub-district ID, and this sub-district ID is the specific sub-district ID that is used to represent Scell of 3bit, as shown in Figure 5;
" if T "=0, do not exist ascending resource to distribute, corresponding RAR load only is 2 bytes, last byte is: TA/R/ sub-district ID, this sub-district ID is the specific sub-district ID that is used to represent Scell of 3bit, TA represents Time Advance Command, i.e. timing advance instruction), as shown in Figure 6.
-for sub-option 2, sub-district ID only exists in striding the RAR load of cell scheduling.Therefore, in order to meet the demands 4, the UE of R11 must discern relevant RAR and have or do not have and stride the cell scheduling configuration, then determines the length of RAR load.This can finish by " R " bit that redefines in first byte in the RAR load, as shown in Figure 3, and for example:
√ R=1, corresponding RAR does not stride cell scheduling.Therefore do not comprise sub-district ID.
■ then, if T=1, ascending resource distribute to exist so, relevant RAR load is 4 byte longs;
If ■ is T=0, the ascending resource distribution does not exist so, and relevant RAR load is 2 byte longs.Last byte is: TA/R/R/R/R/R
√ R=0, corresponding RAR strides cell scheduling, so sub-district ID exists
If ■ is T=1, ascending resource distributes existence so, and relevant RAR load is 5 byte longs, and last byte is R/R/R/R/R/ sub-district ID, and this sub-district ID is the specific sub-district ID that is used to represent Scell
If ■ is T=0, ascending resource distributes and does not exist, and relevant RAR load is 2 byte longs.Last byte is: TA/R/ sub-district ID, this sub-district ID are the specific sub-district ID that is used to represent Scell.
As seen, for sub-option 2, UE must use T bit and R bit to represent the concrete length of each RAR load, correctly to navigate to its RAR load.But the benefit of sub-option 2 is number of cells that eNB is supported without limits, and the benefit of sub-option one is that R11 can navigate to its RAR by the T bit, yet restricted to the number of cells of eNB support, this is not a problem for R11.
1.2 be used to have the new RAR form of the R11 CFRA that strides the cell scheduling configuration
Do not have the R11 CFRA that strides the cell scheduling configuration and will use RAR form traditional, that have ascending resource distribution and TC-RNTI.Therefore these RAR should be arranged in first, as defined above.Then, second portion only covers and has the R11 UE RAR that strides the cell scheduling configuration.As shown in Table 2:
Table two
For this option, for correct UE operation, below four requirements must be satisfied:
Require R1: R11 CFRA RAR information and other RAR information separated that will stride cell scheduling are opened
The CFRA UE that requires R2:R11 to stride cell scheduling must know correctly that there is still filling in this RAR
R3: indicate clearly whether the ascending resource distribution exists
R4: solve potential lead code and obscure, this can realize by specific cell ID is included, with above 1.1 similar
√ option one: with above 1.1 the definition similar, use specific byte E/P/R/R/R/R/R/R
√ option 2: use preceding two bit: E/T/-of first byte/-/-/-/-/-
-for sub-option one, first byte is carried out and above 1.1 identical definition.If the RAR load information is present in the second portion, the T field of E/T/RAID is used to indication: whether this corresponding RAR load has ascending resource is distributed, and this is the same with above 1.1 definition.And R11 UE can know the length of RAR load by the T bit:
If √ is T=1, ascending resource distributes and exists, and concrete RAR load is 5 bytes.Last byte is R/R/R/R/R/ sub-district ID, and this sub-district ID is the specific sub-district ID that is used to represent Scell
If √ is T=0, ascending resource distributes and does not exist, and concrete RAR load is 2 bytes.Last byte is TA/R/ sub-district ID, and this sub-district ID is the specific sub-district ID that is used to represent Scell
In addition, for sub-option one, the R bit still remains reservation.
-be used to indicate RAR information whether to exist for two bits of sub-option 2, the first bytes.For example:
There is not RAR information in √ E/T=0/0;
Only there is a RAR information in √ E/T=0/1, and first byte is 0/1/RAID
There are a plurality of RAR information in √ E/T=1/1.First byte is 1/1/RAID, and ensuing byte is E/1/RAID, and last stature byte is 0/1/RAID.
√ E/T=1/0 keeps
Then, for requiring R3, we can use the R bit in the corresponding RAR load to represent whether the ascending resource distribution exists.
As seen, for sub-option 2, concrete RAR loaded length is represented by the R bit in the corresponding RAR payload segment.
Scheme two: b3 is last decision
If select b3 to send RAR at last, new MAC CE should be designed and (Logical Channel ID LCID) indicates by new Logic Channel Identifier.Only when the CFRA from the sub-district was supported, b3 was effective.According to present state,, only carry out a RA process at one time for each UE.Therefore, do not need as b2 is proposed, to comprise specific cell ID.For this new MAC CE, TA is essential, and TC-RNTI is optional, and the ascending resource distribution is optional.So we as can be seen this MAC CE load have variable-length:
Have ascending resource and divide timing, length is 4 bytes
Do not have ascending resource and divide timing, length is 2 bytes.
Then, in the sub-head of this MAC CE, need extra byte F/L.L byte representation length, and whether the L field can be used to impliedly indicate the ascending resource distribution to exist.
More than, invention has been described from the method angle, below, will carry out concise and to the point description to the present invention from the angle of device.
First device 10 is arranged in the base station, is used for sending accidental access response message to user terminal.First device 10 comprises: the first receiving device 100 and first dispensing device 101.
Second device 20 is arranged in user terminal, is used to insert at random.Second device 20 comprises second dispensing device 200 and second receiving system 201.
At first, second dispensing device 200 sends non-competing random access lead code to the base station of this user terminal of administration.
Then, first receiving device 100 receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code.
Then, first dispensing device 101 adopts the accidental access response message form of optimizing to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message.
Then, second receiving system 201 receives the accidental access response message of the optimization of the accidental access response message form transmission of optimizing from the employing of base station, wherein, comprise timing advance information in the accidental access response message of this optimization, and the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message or utilize medium access control control element to be sent in inserts at random from the sub-district based on non-competing accidental access response message.
More than embodiments of the invention are described, but the present invention is not limited to specific system, equipment and concrete agreement, those skilled in that art can make various distortion or modification within the scope of the appended claims.
The those skilled in the art in those present technique fields can be by research specification, disclosed content and accompanying drawing and appending claims, and understanding and enforcement are to other changes of the execution mode of disclosure.In the claims, word " comprises " element and the step of not getting rid of other, and wording " one " is not got rid of plural number.In the present invention, " first ", " second " are only represented title, do not represent orbution.In the practical application of invention, the function of a plurality of technical characterictics of being quoted during a part possibility enforcement of rights requires.Any Reference numeral in the claim should not be construed as the restriction to scope.
Claims (15)
1. method that is used for sending to user terminal accidental access response message in the base station may further comprise the steps:
A. receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code;
B. adopt the accidental access response message form of optimizing to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message.
2. method according to claim 1, wherein, the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message to be sent in to insert at random from the sub-district based on non-competing accidental access response message, comprise first designator in the accidental access response message of described optimization, to be used for indicating the accidental access response message of this optimization whether to appear in the filler of traditional accidental access response message to this user terminal.
3. method according to claim 2, wherein, described user terminal comprises and adopts the user terminal stride cell scheduling and adopt non-user terminal of striding cell scheduling, and do not comprise interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI in the accidental access response message of this optimization, and comprise specific cell ID in the accidental access response message of this optimization, this specific cell ID be used for identifying subscriber terminal insert at random the place from the sub-district.
4. method according to claim 2 wherein, also comprises before the described step B:
Whether-judgement is adopted this user terminal is striden cell scheduling;
Described step B also comprises:
-when cell scheduling is striden in this user terminal employing, the user terminal that the accidental access response message form that adopts this optimization is striden cell scheduling to this employing sends accidental access response message, do not comprise interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI in the accidental access response message of this optimization, and comprise specific cell ID in the accidental access response message of this optimization, this specific cell ID be used for identifying subscriber terminal insert at random the place from the sub-district.
5. method according to claim 4, wherein, this specific cell ID offers described user terminal by described base station by radio resource control information.
6. method according to claim 2, wherein, the accidental access response message form of described optimization also comprises second designator, is used for indicating this accidental access response media access control protocol data unit whether to comprise the ascending resource allocation field.
7. method according to claim 1, wherein, the user terminal that the accidental access response message form of described optimization utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message, described medium access control control element does not comprise interim sub-district-Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, and this medium access control control element is identified by new Logic Channel Identifier.
8. method according to claim 7 wherein, comprises being used for indicating this medium access control control element the ascending resource allocation field whether to occur in the son head of described medium access control control element.
9. method that inserts at random in user terminal may further comprise the steps:
I. send non-competing random access lead code to the base station of this user terminal of administration;
II. receive the accidental access response message of the optimization of the accidental access response message form transmission of optimizing from the employing of base station, wherein, comprise timing advance information in the accidental access response message of this optimization, and the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message or utilize medium access control control element to be sent in inserts at random from the sub-district based on non-competing accidental access response message.
10. method according to claim 9, wherein, comprise first designator in the accidental access response message of described optimization, to be used for the indicating accidental access response message of this this optimization of user terminal whether to appear in the filler of traditional accidental access response message.
11. method according to claim 9, wherein, described user terminal comprises and adopts the user terminal stride cell scheduling and adopt non-user terminal of striding cell scheduling.
12. method according to claim 9, wherein, described user terminal comprises and adopts the user terminal stride cell scheduling, and do not comprise and adopt non-user terminal of striding cell scheduling, wherein, do not comprise interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI in the accidental access response message of this optimization, and comprise in the accidental access response message of this optimization specific cell ID, this specific cell ID be used for to user terminal notice insert at random the place from the sub-district.
13. method according to claim 9, wherein, the accidental access response message form of described optimization also comprises second designator, is used for indicating this accidental access response media access control protocol data unit whether to comprise the ascending resource allocation field;
-when comprising the ascending resource allocation field in this accidental access response media access control protocol data unit of indication in described second designator, also comprise after the described Step II:
-on the ascending resource allocation field of described distribution, carry out follow-up uplink.
14. first device that is used for sending to user terminal accidental access response message in the base station comprises:
First receiving device, be used to receive from a plurality of user terminals insert at random from the sub-district based on non-competing random access lead code;
First dispensing device, adopt the accidental access response message form of optimizing to send the accidental access response message of optimizing at the user terminal that inserts at random from the sub-district to this, wherein, comprise timing advance information in the accidental access response message of this optimization, and the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message, the user terminal that perhaps utilizes medium access control control element to be sent in to insert at random from the sub-district based on non-competing accidental access response message.
15. second device that inserts at random in user terminal comprises:
Second dispensing device is used for sending non-competing random access lead code to the base station of this user terminal of administration;
Second receiving system, be used to receive the accidental access response message of the optimization of the accidental access response message form transmission of optimizing from the employing of base station, wherein, comprise timing advance information in the accidental access response message of this optimization, and the user terminal that the accidental access response message form of this optimization utilizes the filler in traditional accidental access response message or utilize medium access control control element to be sent in inserts at random from the sub-district based on non-competing accidental access response message.
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| WO2016161650A1 (en) * | 2015-04-10 | 2016-10-13 | 华为技术有限公司 | Method, base station, and user equipment for transmitting random access response messages |
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| CN111988865A (en) * | 2015-12-08 | 2020-11-24 | Oppo广东移动通信有限公司 | Method and device for establishing connection |
| CN114269026A (en) * | 2022-03-01 | 2022-04-01 | 成都爱瑞无线科技有限公司 | Random access signal processing method, random access method, device and storage medium |
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| CN111988865B (en) * | 2015-12-08 | 2023-03-14 | Oppo广东移动通信有限公司 | Method and device for establishing connection |
| CN111988865A (en) * | 2015-12-08 | 2020-11-24 | Oppo广东移动通信有限公司 | Method and device for establishing connection |
| US11497065B2 (en) | 2015-12-08 | 2022-11-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for establishing connection |
| CN108811166A (en) * | 2017-05-05 | 2018-11-13 | 维沃移动通信有限公司 | The sending, receiving method of accidental access response message and transmission, reception device |
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| CN111108793B (en) * | 2017-09-29 | 2023-12-05 | 株式会社Ntt都科摩 | User device and base station device |
| CN110022612A (en) * | 2018-01-10 | 2019-07-16 | 中国移动通信有限公司研究院 | A kind of information indicating method, base station, terminal and computer storage medium |
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| US11632793B2 (en) | 2018-02-21 | 2023-04-18 | FG Innovation Company Limited | Method and apparatus for random access procedure |
| CN111819907B (en) * | 2018-02-21 | 2023-04-28 | 鸿颖创新有限公司 | Method and apparatus for determining access and service priority in next generation network |
| CN111565459A (en) * | 2019-02-14 | 2020-08-21 | 华为技术有限公司 | Communication method and device |
| CN111565459B (en) * | 2019-02-14 | 2023-11-10 | 华为技术有限公司 | Communication method and device |
| CN114269026A (en) * | 2022-03-01 | 2022-04-01 | 成都爱瑞无线科技有限公司 | Random access signal processing method, random access method, device and storage medium |
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