CN108668361A

CN108668361A - A kind of information generating method and equipment

Info

Publication number: CN108668361A
Application number: CN201710214206.8A
Authority: CN
Inventors: 熊琦; 喻斌; 钱辰
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2018-10-16
Anticipated expiration: 2037-04-01
Also published as: CN108668361B

Abstract

This application discloses a kind of information generating methods, including：A corresponding random access resource in advance obtains the lead code grouping after being grouped multiple available random access lead codes；The resource location of the packet index of lead code grouping and the random access resource of the carrying random access lead code, calculates RA RNTI where the random access lead code sent according to UE.Using the application, the user for having selected different downlink transmission beams can be distinguished, improves the detection efficiency of random access response.

Description

A kind of information generating method and equipment

Technical field

This application involves wireless communication technology field more particularly to a kind of information generating method and equipment.

Background technology

With the fast development of information industry, especially from mobile Internet and Internet of Things (IoT, internet of Things increased requirement) brings unprecedented challenge to future mobile.Such as according to International Telecommunication Union ITU Report ITU-R M. [IMT.BEYOND 2020.TRAFFIC], it is contemplated that arrive the year two thousand twenty, mobile service amount increases opposite (the 4G epoch) in 2010 will increase nearly 1000 times, and it also will be more than 17,000,000,000 that user equipment, which connects number, with magnanimity IoT equipment by Mobile communications network is gradually penetrated into, connection number of devices will be more surprising.In order to cope with this unprecedented challenge, communications industry circle Extensive 5th third-generation mobile communication technical research (5G) is expanded with academia, towards the year two thousand twenty generation.At present in the report of ITU Accuse in the frame and overall goals that future 5G is discussed in ITU-R M. [IMT.VISION], wherein the demand to 5G look forward to, Application scenarios and every important performance indexes elaborate.For the new demand in 5G, the report ITU-R M. of ITU [IMT.FUTURE TECHNOLOGY TRENDS] provides the relevant information of technological trend for 5G, it is intended to which solution system gulps down The amount of spitting is obviously improved, user experience consistency, autgmentability are to support IoT, time delay, efficiency, cost, network flexibility, new industrial The prominent questions such as the support of business and flexible spectrum utilization.

The performance of random access directly influences the experience of user.Traditional wireless communication system, such as LTE and LTE- In Advanced, random access procedure is applied to as established initial link, cell switching, re-establishing uplink, RRC companies Multiple scenes such as reconstruction are connect, and random access competition-based is divided into according to the whether exclusive leader sequence resources of user (Contention-based Random Access) and based on non-competing random access (Contention-free Random Access).Due in random access competition-based, each user during attempting to establish uplink, from Targeting sequencing is selected in identical leader sequence resources, it is possible that multiple users select identical targeting sequencing to be sent to base It stands, therefore Conflicts management strategy is the important research direction in random access, how to reduce collision probability, how quickly to solve Conflict through generation is the key index for influencing random access performance.

Random access procedure competition-based is divided into four steps in LTE-A, as shown in Figure 1.In the first step, user is from leading sequence A random access leader sequence (i.e. random access lead code) is randomly choosed in row resource pool, is sent to base station.It docks base station The collection of letters number carries out a correlation detection, to identify the targeting sequencing transmitted by user；In second step, base station to user send with Machine access response (Random Access Response, RAR), comprising random access leader sequence identifier, according to user and Timing advance instruction, Temporary Cell Radio Network temporary identifier (Temporary Cell- determined by time delay estimation between base station Radio Network Temporary Identifier, TC-RNTI), and by user uplink distributes next time when Frequency resource；In third step, user receives RAR, and according to the information in RAR, and Article 3 message (Msg3) is sent to base station.Msg3 In include the information such as user terminal identification and RRC linking requests, wherein the user terminal identification is that user is unique, is used for Solve conflict；In 4th step, base station sends Conflict solving mark to user, contains the user of the user to win in Conflict solving Terminal iidentification.User upgrades to C-RNTI after the mark for detecting oneself, by interim C-RNTI, and sends ACK letters to base station Number, random access procedure is completed, and wait for the scheduling of base station.Otherwise, user starts new random access after being delayed at one section Process.

For that can be that user's distribution is leading since base station known users identify based on non-competing random access procedure Sequence.Therefore when user leads sequence before sending, sequence need not be randomly choosed, and the targeting sequencing distributed can be used.Base It stands after detecting the targeting sequencing distributed, corresponding random access response, including timing advance and ascending resource can be sent The information such as distribution.After user receives random access response, it is believed that uplink synchronous is completed, waits for the further scheduling of base station. Therefore, only include two steps based on non-competing random access procedure：Step 1 is to send targeting sequencing；Step 2 is random Access the transmission of response.

Random access procedure in LTE is suitable for following scene：

Initial access under 1.RRC_IDLE；

2. re-establishing RRC connections；

3. cell switches；

Downlink data reaches and asks random access procedure under 4.RRC connected states (when uplink is in asynchronous)；

Upstream data reaches and asks random access procedure (when uplink is in asynchronous or PUCCH under 5.RRC connected states Resource is not distributed to scheduling request) in resource；

6. positioning.

In LTE, above-mentioned six kinds of scenes use identical random access step.Some of scenes, such as in PUCCH resource When unallocated scheduling request resources, random access procedure competition-based actually works under RRC connected states, therefore original Random access procedure can optimize, and be allowed to the scheduling request scene being more suitable under connected state.In addition, in NR, Having some other application scenarios needs random access application scenarios competition-based under RRC connected states, such as carrier frequency to be more than When 6GHz, the processes such as wave beam request or wave beam recovery.Therefore in NR standardization, it is necessary to be carried for the user under connected state For a kind of uplink scheduling request mode of optimization.

In traditional LTE network, network is needed when sending the information, i.e. random access response of random access second step Want random access radio network temporary identifier (Random Access-Radio Network Temporary Identifier, RA-RNTI) RAR information is scrambled, while user side is also required to generate RA-RNTI to possible RAR according to identical mode Descrambled to detected random access response.It is according to carrying random access lead code currently, when generating RA-RNTI Random access running time-frequency resource position calculate, therefore send the use of lead code only on identical random access running time-frequency resource Family can generate identical RA-RNTI.

Invention content

The application provides a kind of information generating method, can distinguish the user for having selected different downlink transmission beams, improves The detection efficiency of random access response.

To achieve the above object, the application adopts the following technical scheme that：

A kind of information generating method, including：

User equipment (UE) sends random access lead code to base station；

The UE is according to the packet index of lead code grouping where the random access lead code of transmission and carries described random The resource location of the random access resource of access lead code calculates RA-RNTI；

Wherein, the lead code is grouped into the grouping of the available random access lead code of a corresponding random access resource.

Preferably, the random access resource is to measure selected downlink transmission beam based on downlink according to UE to determine 's；

The random access lead code of the transmission is surveyed based on downlink in the correspondence random access resource and with the UE It measures and selects in the lead code grouping of selected downlink transmission beam binding.

Preferably, the random access resource is to be based on downlink according to UE to measure selected physical broadcast signal or synchronization What block determined；

The random access lead code of the transmission is surveyed based on downlink in the correspondence random access resource and with the UE It measures and is selected in the lead code grouping of selected physical broadcast signal or the binding of synchronizing signal block.

Preferably, when different lead code groupings carries out one-to-one binding from different downlink transmission beams, before described Leading code packet index is the beam index of the selected downlink transmission beam.

Preferably, lead code grouping is belonging to the lead code root sequence that is used according to available random access lead code What lead code root sequence of packets determined, wherein the random access lead code determined using same group of lead code root sequence is belonged to Identical lead code grouping；

The packet index of lead code grouping is：The root sequence being grouped where the lead code root sequence of random access lead code Column split indexes.

Preferably, lead code grouping is belonging to the orthogonal covering codes word that is used according to available random access lead code The grouping determination of orthogonal covering codes word, wherein the random access lead code determined using same group of orthogonal covering codes word is belonged to Identical lead code grouping；

The packet index of lead code grouping is：Grouping where generating the orthogonal covering codes word of random access lead code Orthogonal covering codes word packet index.

Preferably, lead code grouping is following belonging to the cyclic shift value that is used according to available random access lead code Ring displacement grouping determination, wherein before the random access lead code determined using same group of cyclic shift value belongs to identical Leading code is grouped；

The packet index of lead code grouping is：It generates and divides where corresponding cyclic shift value when random access lead code The cyclic shift packet index of group.

Preferably, the lead code grouping is determined according to random access lead code, wherein each random access guiding Code is grouped for a lead code；

The packet index of the lead code grouping indexes for random access lead code.

Preferably, according to the random access of the packet index of lead code grouping and the carrying random access lead code The mode that the resource location of resource calculates RA-RNTI includes：

The random access resource of the corresponding random access lead code for carrying the transmission, originates according to the random access resource The index information f_ of frequency cells where the index information t_id of time quantum, the random access resource initial position where position Id and the packet index pg_id of lead code grouping calculate RA-RNTI, wherein RA-RNTI=1+a*t_id+b*f_id+c* pg_id；Wherein, a, b and c are respectively the corresponding weighting coefficient of preset t_id, f_id and pg_id.

Preferably, when between different random access resources without the differentiation in time domain, it will when calculating the RA-RNTI T_id is set as 0；

And/or

When between different random access resources without the differentiation on frequency domain, f_id is set when calculating the RA-RNTI It is set to 0.

The random access resource of the corresponding random access lead code for carrying the transmission, according to where the random access resource The index SFN_id of first first time unit, first in first first time unit where the random access resource The index information f_id of first frequency domain unit where the index information t_id of a second time quantum, the random access resource and The packet index pg_id of the lead code grouping calculates RA-RNTI, wherein RA-RNTI=1+a*t_id+b*f_id+c* (SFN_ id mod(Wmax/10))+d*pg_id；Wherein, a, b, c and d are respectively preset t_id, f_id, (SFN_id mod (Wmax/ 10)) and the corresponding weighting coefficients of pg_id, Wmax are that the maximal window of the possible random access response window of user is long.

Preferably, a=1, b=max { 1+a*t_id }=M+1, c=max { 1+a*t_id+b*f_id }=(max { t_id } +1)(max{f_id}+1)。

Preferably, the time quantum/second the index information t_id of time quantum be：When the time quantum/second Between unit index value, alternatively, according in multiple time quantums where the random access resource index value determine described in t_id；

And/or

The index information f_id of the frequency cells is：The index value of the frequency domain unit, alternatively, being connect at random according to described Enter index value of the resource in multiple frequency cells and determines the f_id.

Preferably, the time quantum/second the index value of time quantum be：Subframe index, time slot index, small time slot rope Draw, symbol group index or notation index；And/or

Index value in the multiple time quantum includes：Subframe index, time slot index, small time slot index, set of symbols rope Draw and multiple indexes in notation index；And/or

The first time unit is radio frames；And/or

The index of the frequency cells is：Physical Resource Block PRB group indexes, PRB indexes, sub-carrier indices or subcarrier group Index；And/or

Index value in the multiple frequency cells includes：PRB group indexes, PRB indexes, sub-carrier indices and subcarrier group Multiple indexes in index.

The random access resource of the corresponding random access lead code for carrying the transmission, according to where the random access resource The index SFN_id of first time quantum and the packet index pg_id of lead code grouping calculate RA-RNTI, wherein RA-RNTI=1+a*floor (SFN_id/4)+b*pg_id；Wherein, a and b be respectively preset floor (SFN_id/4) and The corresponding weighting coefficients of pg_id, floor (x) values are the maximum integer less than x.

Preferably, a=1, b=max { 1+a*floor (SFN_id/4) }=floor (SFN_id/4)+1.

A kind of information generating method, including：

Base station receives the random access lead code that user equipment (UE) is sent；

The base station according to the packet index of lead code grouping where the random access lead code of reception and carrying it is described with The resource location of the random access resource of machine access lead code calculates RA-RNTI；

Wherein, the lead code is grouped into the grouping of the available random access lead code of corresponding random access resource.

A kind of information generating device, including：Transmission unit and computing unit；

The transmission unit, for sending random access lead code to base station；

The computing unit, for the packet index according to lead code grouping where the random access lead code of transmission, meter Calculate RA-RNTI；Wherein, the lead code is grouped into the grouping of the available random access lead code of corresponding random access resource.

A kind of information generating device, including：Receiving unit and computing unit；

The receiving unit, the random access lead code for receiving user equipment (UE) transmission；

The computing unit, for according to the packet index of lead code grouping where the random access lead code of reception and holding The resource location of the random access resource of the random access lead code is carried, RA-RNTI is calculated；

As seen from the above technical solution, in the application, a corresponding random access resource, multiple available randoms are accessed in advance Lead code obtains the lead code grouping after being grouped；Lead code grouping where the random access lead code sent according to UE The resource location of packet index and the random access resource of the carrying random access lead code, calculates RA-RNTI.By this Mode can distinguish the user for having selected different downlink transmission beams, can also distinguish using identical random access resource not Same user, to improve the detection efficiency of random access response.

Description of the drawings

Fig. 1 is the schematic diagram of random access procedure competition-based in LTE-A；

Fig. 2 a are the sides the UE processing flow schematic diagram of information generating method in the application；

Fig. 2 b are the base station side processing flow schematic diagram of information generating method in the application；

Fig. 3 is the mapping relations schematic diagram of downlink transmission beam and random access running time-frequency resource in embodiment one；

Fig. 4 is the lead code grouping schematic diagram for corresponding to random access resource in embodiment one；

Fig. 5 is the mapping relations schematic diagram of synchronizing signal block and random access resource in embodiment two；

Fig. 6 is the lead code grouping schematic diagram for corresponding to random access resource in embodiment two；

Fig. 7 is the mapping relations schematic diagram of downlink transmission beam and random access running time-frequency resource in example IV；

Fig. 8 is the lead code grouping schematic diagram for corresponding to random access resource in example IV；

Fig. 9 is the mapping relations schematic diagram of downlink transmission beam and random access running time-frequency resource in embodiment five；

Figure 10 is the lead code grouping schematic diagram for corresponding to random access resource in embodiment five；

Figure 11 is the UE side apparatus basic structure schematic diagrams that information generates in the application；

Figure 12 is the base station equipment basic structure schematic diagram that information generates in the application.

Specific implementation mode

In order to make the purpose, technological means and advantage of the application be more clearly understood, the application is done below in conjunction with attached drawing It is further described.

In following 5G communication systems, network can use beam-forming system, and base station may use different downlinks Transmission beam sends signal to user.Since the transmission performance of different downlink transmission beams is different, user can be according to downlink The detection of signal selects the better downlink transmission beam of reception in multiple and different downlink transmission beams and notifies base station, So base station can send signal using the downlink transmission beam in subsequent transmission to user, to improve transmission performance. In 5G communication systems, multiple downlink transmission beams can be bound with identical random access running time-frequency resource.At this point, in order to enable Network side can distinguish the downlink transmission beam of user's selection by the resource that detects and lead code, it may be considered that can Random access lead code is grouped, and is bound with different downlink transmission beams using different packet indexes. But if also according to existing RA-RNTI generating modes, user understands additional waste in the random lead code for detecting other groups On.

To solve the above problems, the application provides a kind of generating mode of information, RA- is generated using a kind of new mode RNTI.In the Transmission system of multi-beam, system can send broadcast message or synchronizing signal by multiple downlink transmission beams Etc. information, while multiple downlink transmission beams can and identical random access resource binding, it is right in this random access resource Random access lead code is grouped, and different downlink transmission beams is indicated with different groupings.The present invention provides a kind of new The construction method that generates random access radio network temporary identifier, using running time-frequency resource position used in random access and Packet index where the lead code of selection generates RA-RNTI to calculate.In this way, user is when searching for possible RAR, Jiu Huitong It crosses the RA-RNTI generated and automatically excludes those random connecing for having used identical running time-frequency resource but being different lead code grouping Enter response, saves user and search for expense and time delay.And base station is by the random access lead code that detects, in random access response It is middle that the user for having selected different downlink transmission beams is distinguished with different random access radio network temporary identifiers.

When user reads by down channel the configuration information of random access, corresponding random access time-frequency money is obtained After source and corresponding random access lead code (i.e. random access leader sequence) grouping, provided in the random access time-frequency of selection Random access lead code is sent on source.Before sending after a period of time of leading code, user needs according to random access response window Size searches for possible random access response, and this random access response is indicated with by RA-RNTI.It is different from traditional approach, The calculation for the RA-RNTI that the application proposes and a given random access channel (Physical Random Access Channel, PRACH) resource location and the random access channel on the grouping of available random access lead code grouping rope Draw related.

In different systems, the resource location of used random access channel may be different when calculating RA-RNTI 's.

In 5G systems, corresponding resource location can refer to the PRACH channels that the random access lead code sent uses The index information t_id of the initial time unit at the place and index information f_id of initial frequency unit.Wherein, time quantum Index information t_id can be the index value of the time quantum where PRACH channels initial position, such as PRACH channel start bits The starting subframe index (subframe index) in radio frames (Radio frame) where setting, and the value range of t_id It is 0 to M, i.e., (0≤t_id ＜ M+1), alternatively, index information t_id can also be according to where PRACH channels initial position Index value in multiple time quantums determines, such as is believed according to the index and PRACH of radio frames where PRACH channels initial position The index of subframe determines where road.Similarly, the index information f_id of frequency cells can be PRACH channels initial position place Frequency cells index value, for example, the PRB indexes of PRB where PRACH channels initial position, and the value range of f_id is 0 To N, i.e., (0≤f_id ＜ N+1), alternatively, index information f_id can also be according to PRACH channels initial position in multiple frequencies Index value in unit determines, such as the index of the PRB where PRACH channels and sub-carrier indices determine.M and N is non-negative Integer.

In enhancing machine communication (enhanced Machine type communication, eMTC), corresponding resource Position may include index information SFN_id (such as the random access of first first time unit where random access channel The index of first radio frames where channel), the second time in first first time unit where random access channel Frequency cells where the index information t_id (such as subframe index in first radio frames) and random access channel of unit Index information f_id.

In narrowband in Internet of things system (Narrow band-Internet of Things, NB-IOT), corresponding resource Position can be the index SFN_id of first time quantum where random access channel (such as where random access channel The index of first radio frames).

The packet index of random access lead code grouping refers to connecing at random belonging to the random access lead code sent corresponds to Enter the grouping pg_id of lead code, random access lead code herein is grouped just in the selected random access time-frequency of user Resource, and the value range of pg_id is 0 to P, i.e., (0≤pg_id ＜ P+1).P is nonnegative integer.It should be noted that because Lead code grouping is also for the notice selected downlink transmission beam of base station user, so lead code grouping is and downlink transfer Wave beam binding, when calculating RA-RNTI, lead code packet index can also be downlink transmission beam (Downlink Transmission beam, DL Tx beam) index or synchronizing signal block (Synchronization Signal Block, SS block) index or physical broadcast signal (PBCH) index.In addition, in addition to directly by lead code set Except being grouped, because lead code set can be different lead code root sequence (root sequence), grouping is constituted, or It is preamble sequence and different orthogonal covering codes word (Orthogonal Cover Code, OCC) composition or lead code Sequence and different cyclic shift (Cyclic Shift, CS) are constituted.Therefore, lead code packet index can also be different Sequence of packets indexes, orthogonal covering codes word indexing, or is different cyclic shift index.

To sum up, the information generating method basic procedure in the application is as shown in Figure 2 a and 2 b, wherein Fig. 2 a are the sides UE Process flow specifically includes：

Step 201a, UE send random access lead code；

Step 202a, UE are random according to the packet index of lead code grouping and carrying where the random access lead code of transmission The resource location of the random access resource of access lead code calculates RA-RNTI.

Wherein, lead code is grouped into the grouping of the available random access lead code of corresponding random access resource.Specifically may be used To correspond to random access resource in advance, lead code grouping is obtained after multiple available random access lead codes are grouped.

Fig. 2 b are the process flow of base station side, are specifically included：

Step 201b, base station receive random access lead code；

Step 202b, packet index that base station is grouped according to lead code where the random access lead code of reception and carrying with The resource location of the random access resource of machine access lead code calculates RA-RNTI.

Wherein, lead code is grouped into the grouping of the available random access lead code of corresponding random access resource.Specifically, may be used To correspond to random access resource in advance, the lead code grouping is obtained after multiple available random access lead codes are grouped.

In the communication systems such as 5G, the calculation of RA-RNTI can be：

RA-RNTI=1+a*t_id+b*f_id+c*pg_id (1)

Wherein, t_id, f_id indicate the index information and frequency of the time quantum where random access channel initial position respectively The index information of unit, for example, on the temporal initial position and frequency domain of characterization random access channel in a radio frame Initial position.T_id can be subframe index (subframe index), time slot index (slot index), small time slot index (mini-slot index), symbol group index (symbol-group index), notation index (symbol index) or root It is determined according to the index of above-mentioned multiple time quantums, such as the time slot index under a subframe index or the symbol under time slot index Number index；F_id can be Physical Resource Block group index (PRB-group index), Physical Resource Block index (PRB index), Sub-carrier indices (subcarrier index), subcarrier group index (subcarrier group index) or according to above-mentioned more The index of a frequency cells determines, such as the sub-carrier indices under a Physical Resource Block index.

Wherein, a, b, c are respectively the coefficient of t_id, f_id and pg_id, and the value of a, b, c will meet a condition, i.e., The value of RA-RNTI and { t_id, f_id, pg_id } are wanted uniquely to correspond to, from the value energy of one group { t_id, f_id, pg_id } The value of unique RA-RNTI is extrapolated, opposite, it can also extrapolate { t_id, f_id, pg_id } from the value of a RA-RNTI Unique value.A kind of feasible design is：The value of the maximum value that the value that the value of a is 1, b is 1+a*t_id, c is 1+ The maximum value of a*t_id+b*f_id, i.e.,

A=1,

B=max { 1+a*t_id }=M+1,

C=max { 1+a*t_id+b*f_id }=(M+1) (N+1).

For example, M=9, N=5, then the calculation of RA-RNTI is：

RA-RNTI=1+t_id+10*f_id+60*pg_id (2)

Therefore, when the value of RA-RNTI be 32, then can extrapolate unique value t_id=1, f_id=3, pg_id =0.

After RA-RNTI is calculated by mode shown in above-mentioned Fig. 2 a in UE, sent using RA-RNTI detections base station Random access response.After RA-RNTI is calculated by mode shown in above-mentioned Fig. 2 b in base station, using the RA-RNTI to random Access response is scrambled, and is sent to UE.

The RA-RNTI generated through the above way can reflect the downlink transmission beam of user's selection, improve random access The detection efficiency of response.Illustrate the specific implementation of the application method below by several embodiments.

Embodiment one

In the present embodiment, available random access lead code is grouped to obtain leading by a corresponding random access resource Code grouping, and lead code grouping is subjected to one-to-one binding with downlink transmission beam, so as to the downlink selected according to user Transmission beam, selection random access lead code carries out random access in the grouping of corresponding lead code, and is connect by the random of selection Enter the downlink transmission beam that lead code enables base station to distinguish UE selections.

Specifically, base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and different Downlink transmission beam can be tied to specified random access resource, a kind of situation is that multiple downlink transmission beams can be bound Onto identical random access running time-frequency resource, in Fig. 3, downlink transmission beam 1 is mapped to identical with downlink transmission beam 2 On random access running time-frequency resource.

At this point, if the downlink transmission beam of user's selection can be obtained by the detection of random accessing message 1 to base station Direction needs to be grouped different lead code set.Assuming that for downlink transmission beam 1 and downlink transmission beam 2, in total Available a total of X=64 of random access lead code, this lead code set is divided into two groups, wherein containing A in the 0th group Lead code (A<64) it is bound with downlink transmission beam direction 1, B lead code (B is contained in the 1st group<64, A+B≤64) and downlink Transmission beam direction 2 bind, i.e., when the lead code that base station detects on corresponding random access resource be belong to the 0th group it is leading Code grouping, the implicit user's selection downlink transmission beam 1 for being notified of base station and sending the lead code, similarly, i.e., when base station is right The lead code detected on the random access resource answered belongs to the 1st group of lead code grouping, and the implicit base station that is notified of sends this The user of lead code selects downlink transmission beam 2.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in figure 4, in downlink transmission beam 1 and 2 corresponding random access resources, lead code set It is divided into 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of downlink transmission beam, it is preceding Leading code collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, system be set as have 10 in a radio frames A subframe, t_id marks are subframe index, i.e., its value range is 0 to 9, i.e. (0≤t_id ＜ 10), random access resource There are 6 PRB on frequency domain, f_id marks are Physical Resource Block indexes, i.e., its value range is 0 to 5, i.e. (0≤f_id ＜ 6), Then the calculation of RA-RNTI is by the way of previously described formula (2)：

RA-RNTI=1+t_id+10*f_id+60*pg_id.

If user's downlink, which measures, finds that (i.e. downlink sends what wave beam 2 measured to signal strength maximum of the downlink wave beam 2 to oneself RSRP is maximum), then user selects 2 corresponding random access running time-frequency resource of downlink wave beam, wherein the random access running time-frequency resource Initial position is the 2nd subframe of time domain and the 3rd PRB of frequency domain, and has selected lead code 32 from lead code grouping 1 It sends, i.e. t_id=2, f_id=3, pg_id=1.Final base station success using initial position as the 2nd subframe of time domain with And detect random access lead code 32 on the random access running time-frequency resource of the 3rd frequency domain position of frequency domain, and to lead code 32 Random access response is carried out, is scrambled using RA-RNTI, then the value of RA-RNTI at this time is：

RA-RNTI=1+2+10*3+60*1=93.

Meanwhile the user uses identical generating mode, can also generate identical RA-RNTI values, therefore can descramble phase The PDCCH answered searches for possible random access response therein.

From the foregoing, it can be seen that in the present embodiment, random access resource is to be based on downlink according to UE to measure selected downlink biography What defeated wave beam determined；The random access lead code that UE is sent is based on selected by downlink measurement in corresponding random access resource and with UE It is selected in the lead code grouping for the downlink transmission beam binding selected.

Embodiment two

In the present embodiment, available random access lead code is grouped to obtain leading by a corresponding random access resource Code grouping, and lead code grouping is subjected to one-to-one binding with physical broadcast signal or synchronizing signal block, so as to according to The physical broadcast signal or synchronizing signal block of family selection, selection random access lead code carries out random in the grouping of corresponding lead code Access, and so that base station is distinguished the downlink transmission beam that UE is selected by the random access lead code of selection.

Next, embodiment will be introduced based on down channel/signal (as synchronized block, extensively by specific flow Broadcast) the application propose novel RA-RNTI generating modes.

Specifically, base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and send Synchronizing signal block or broadcast channel can be tied to specified random access resource, a kind of situation is multiple synchronizing signals Block can be tied on identical random access running time-frequency resource, and in Fig. 5, synchronizing signal block 1 is mapped to phase with synchronizing signal block 2 On same random access running time-frequency resource.

At this point, if to base station the downlink transmission beam of user preference can be obtained by the detection of random accessing message 1 Direction needs to be grouped different lead code set.Assuming that for downlink transmission beam 1 and downlink transmission beam 2, in total Available a total of X=64 of random access lead code, this lead code set is divided into two groups, wherein containing A in the 0th group Lead code (A<64) it is bound with synchronizing signal block 1, B lead code (B is contained in the 1st group<64, A+B≤64) with synchronizing signal block 2, i.e., it is grouped, implies logical when the lead code that base station detects on corresponding random access resource belongs to the 0th group of lead code The user that cicada base station sends the lead code prefers to synchronizing signal block 1, i.e. downlink transmission beam 1, similarly, i.e., when base station is right The lead code detected on the random access resource answered belongs to the 1st group of lead code grouping, and the implicit base station that is notified of sends this The user of lead code prefers to synchronizing signal block 2, i.e. downlink transmission beam 2.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in fig. 6, in synchronizing signal block 1 and 2 corresponding random access resources, lead code set point It it is 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of synchronizing signal block, lead code Collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, system is set as in a radio frames at this time There are 10 subframes, i.e. the value range of t_id is 0 to 9, i.e. (0≤t_id ＜ 10), there are 6 positions on the frequency domain of random access resource Set, i.e., the value range of f_id is 0 to 5, i.e. (0≤f_id ＜ 6), then the calculation of RA-RNTI by the way of formula (2), I.e.：

RA-RNTI=1+t_id+10*f_id+60*pg_id.

If user's downlink, which measures, finds that the synchronizing signal block 2 that downlink wave beam direction 2 is sent is maximum to the signal strength of oneself, Then user selects 2 corresponding random access running time-frequency resource of synchronizing signal block, the wherein initial position of the random access running time-frequency resource For the 2nd subframe of time domain and the 3rd PRB of frequency domain, and selected from the corresponding lead code grouping of the random access resource 1 Lead code 32 is selected to send, i.e. t_id=2, f_id=3, pg_id=1.Final base station success is using initial position as time domain The 2nd subframe and frequency domain the 3rd frequency domain position random access running time-frequency resource on detect random access lead code 32, And random access response is carried out to lead code 32, it is scrambled using RA-RNTI, then the value of RA-RNTI at this time is：

RA-RNTI=1+2+10*3+60*1=93.

From the foregoing, it can be seen that in the present embodiment, random access resource is wide based on the selected physics of downlink measurement according to UE Broadcast what signal or synchronizing signal block determined；The random access lead code that UE is sent is based in corresponding random access resource and with UE Downlink measures to be selected in the lead code grouping of selected physical broadcast signal or the binding of synchronizing signal block.

Embodiment three

In the present embodiment, the packet mode of lead code grouping and the specific value mode of lead code packet index are introduced. Base packet mode in this present embodiment and packet index value mode, then counted with the RA-RNTI in previous embodiment one or two Calculation mode is combined, and can provide selection with a greater variety to calculate RA-RNTI.

It is directly to be grouped different lead code set, in the present embodiment, in addition to direct in embodiment before Except lead code set is grouped, because lead code set can be different lead code root sequence (root Sequence) grouping constitute or preamble sequence and different orthogonal covering codes words (Orthogonal Cover Code, OCC it) constitutes or preamble sequence and different cyclic shift (Cyclic Shift, CS) is constituted.Therefore, leading It can be carried out based on lead code root sequence, orthogonal covering codes word and cyclic shift when code grouping, lead code packet index also may be used To be that different sequence of packets index, orthogonal covering codes word indexing, or it is different cyclic shift index.

Base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and different down going waves Beam can be tied to specified random access resource, and a kind of situation is, multiple downlinks send wave beams can be tied to it is identical random It accesses on running time-frequency resource, in Fig. 3, downlink transmission beam 1 is mapped to identical random access time-frequency with downlink transmission beam 2 In resource.

At this point, if to base station the downlink transmission beam of user preference can be obtained by the detection of random accessing message 1 Direction needs to be grouped lead code set.Grouping to lead code is it may is that any one of following four：

1. available random access lead code is directly grouped.

For example, it is assumed that for downlink transmission beam 1 and downlink transmission beam 2, available random access lead code is total in total Shared X=64, this lead code set is divided into two groups, wherein containing A lead code (A in the 0th group<And downlink transfer 64) Beam direction 1 is bound, and B lead code (B is contained in the 1st group<64, A+B≤64) it binds, that is, works as with downlink transmission beam direction 2 The lead code that base station detects on corresponding random access resource belongs to the 0th group of lead code grouping, implicit to be notified of base Stand send the lead code user prefer to downlink transmission beam 1, similarly, i.e., examined on corresponding random access resource when base station The lead code measured belongs to the grouping of the 1st group of lead code, it is implicit be notified of base station and send the user of the lead code prefer to down Row transmission beam 2.

2. according to the root (root value) of lead code, available random access lead code is grouped.Specifically, The corresponding all lead code root sequences of available random access code are grouped；Divide to available random access lead code When group, the random access lead code that same group of lead code root sequence is generated is divided in same group；The then grouping of lead code grouping Index is：Generate the root sequence of packets index being grouped where the lead code root sequence of random access lead code.That is, our In formula, lead code grouping is the lead code root sequence point belonging to the lead code root sequence that is used according to available random access lead code Group determination, wherein the random access lead code determined using same group of lead code root sequence belongs to identical lead code point Group.

For example, it is assumed that for downlink transmission beam 1 and downlink transmission beam 2, available random access lead code is total in total Shared X=64, wherein the lead code root sequence used only has X '=32, by this lead code set based on root sequence It is divided into two groups, i.e., contains A ' (A ' in wherein the 0th group<32) a lead code root sequence (while being based in all 64 lead codes The lead code that a root sequences of this A ' generate) it is bound with downlink transmission beam direction 1, contain B ' (B ' in the 1st group<32,A’+B’≤ 32) a lead code root sequence (while the lead code generated based on a root sequences of this B ' in all 64 lead codes) is passed with downlink Defeated beam direction 2 is bound, i.e., when the lead code that base station detects on corresponding random access resource is to belong to the 0th group of lead code Root sequence of packets, it is implicit be notified of base station and send the user of the lead code prefer to downlink transmission beam 1, similarly, that is, work as base The lead code detected on corresponding random access resource of standing belongs to the 1st group of lead code root sequence of packets, implies notice The user that base station sends the lead code prefers to downlink transmission beam 2.

3. according to occ, available random access lead code is grouped.Specifically, by available random access code pair The each orthogonal covering codes word answered is grouped；When being grouped to available random access lead code, will use with group just The random access lead code for handing over covering code word to generate, is divided in same group；Then the packet index of lead code grouping is：It generates random The orthogonal covering codes word packet index being grouped where the orthogonal covering codes word of access lead code.That is, in the method, it is leading Code grouping is that the orthogonal covering codes word grouping belonging to the orthogonal covering codes word that is used according to available random access lead code is determining, Wherein, the random access lead code determined using same group of orthogonal covering codes word belongs to identical lead code grouping.

For example, it is assumed that for downlink transmission beam 1 and downlink transmission beam 2, available random access lead code is total in total Shared X=64, wherein the orthogonal covering codes (OCC) used only have X '=8, it is based on orthogonal covering codes that this is leading Code collection conjunction is divided into two groups, i.e., contains A ' (A ' in wherein the 0th group<8) a orthogonal covering codes (while the base in all 64 lead codes In the lead code that a orthogonal covering codes of this A ' generate) it is bound with downlink transmission beam direction 1, contain B ' (B ' in the 1st group<8,A’+ B '≤8) a orthogonal covering codes (while the lead code generated based on a orthogonal covering codes of this B ' in all 64 lead codes) with Downlink transmission beam direction 2 is bound, i.e., when the lead code that base station detects on corresponding random access resource is to belong to the 0th group Orthogonal covering codes grouping, it is implicit be notified of base station and send the user of the lead code prefer to downlink transmission beam 1, similarly, i.e., It is grouped, implies logical when the lead code that base station detects on corresponding random access resource belongs to the 1st group of orthogonal covering codes The user that cicada base station sends the lead code prefers to downlink transmission beam 2.

4. according to cyclic shift, available random access lead code is grouped.It specifically, will be available random The corresponding each cyclic shift value of access code is grouped；It, can be by life when being grouped to available random access lead code At the random access lead code with group cyclic shift value is corresponded to when random access lead code, it is divided in same group；Then lead code point Group packet index be：It generates the cyclic shift being grouped where corresponding cyclic shift value when random access lead code and is grouped rope Draw.That is, lead code grouping is the cyclic shift belonging to the cyclic shift value that is used according to available random access lead code Grouping determination, wherein the random access lead code determined using same group of cyclic shift value belongs to identical lead code point Group.

For example, it is assumed that for downlink transmission beam 1 and downlink transmission beam 2, available random access lead code is total in total Shared X=64, wherein workable cyclic shift (CS) only has X '=6, by this lead code based on cyclic shift Set is divided into two groups, i.e., contains A ' (A ' in wherein the 0th group<6) a cyclic shift (while being based on this in all 64 lead codes The lead code that a cyclic shifts of A ' generate) it is bound with downlink transmission beam direction 1, contain B ' (B ' in the 1st group<6,A’+B’≤6) A cyclic shift (while the lead code generated based on a cyclic shifts of this B ' in all 64 lead codes) and downlink transfer wave Shu Fangxiang 2 is bound, i.e., when the lead code that base station detects on corresponding random access resource is to belong to the 0th group of cyclic shift point Group, it is implicit be notified of base station and send the user of the lead code prefer to downlink transmission beam 1, similarly, i.e., when base station is in correspondence Random access resource on the lead code that detects belong to the 1st group of cyclic shift grouping, it is implicit be notified of that base station sends should The user of lead code prefers to downlink transmission beam 2.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in figure 3, in downlink transmission beam 1 and 2 corresponding random access resources, lead code set It is divided into 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of downlink transmission beam, it is preceding Leading code collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, system is set as in a radio frames at this time There are 10 subframes, i.e. t_id marks are subframe index, i.e., its value range is 0 to 9, i.e. (0≤t_id ＜ 10), random access There are 6 PRB on the frequency domain of resource, f_id marks are PRB indexes, i.e. its value range is 0 to 5, i.e. (0≤f_id ＜ 6), then The calculation of RA-RNTI is using mode shown in formula (2), i.e.,：

RA-RNTI=1+t_id+10*f_id+60*pg_id.

If user's downlink, which measures, finds that (i.e. downlink sends what wave beam 2 measured to signal strength maximum of the downlink wave beam 2 to oneself RSRP is maximum), then user selects 2 corresponding random access running time-frequency resource of downlink wave beam, wherein the random access running time-frequency resource Initial position is the 2nd subframe of time domain and the 3rd PRB of frequency domain, and has selected lead code 32 in lead code grouping 1 It sends, i.e. t_id=2, f_id=3, pg_id=1.Final base station success using initial position as the 2nd subframe of time domain and Detect random access lead code 32 on the random access running time-frequency resource of 3rd frequency domain position of frequency domain, and to lead code 32 into Row random access response is scrambled using RA-RNTI, then the value of RA-RNTI at this time is：

RA-RNTI=1+2+10*3+60*1=93.

Example IV

In a communications system, the different random access resources for user's selection may be not different in the time domain, only It can be distinguished on frequency domain, the present embodiment is directed to this random access resource, provides the generating mode of RA-RNTI.

Base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and different down going waves Beam can be tied to specified random access resource, and a kind of situation is, multiple downlinks send wave beams can be tied to it is identical random It accesses on running time-frequency resource, in Fig. 7, downlink transmission beam 1 is mapped to identical random access time-frequency with downlink transmission beam 2 In resource.Meanwhile a kind of special situation is, when system does not configure the random access resource on different time, i.e., downlink passes The corresponding random access running time-frequency resource of defeated wave beam only has differentiation on frequency domain.

At this point, if the downlink transmission beam of user's selection can be obtained by the detection of random accessing message 1 to base station Direction needs to be grouped different lead code set.Assuming that for downlink transmission beam 1 and downlink transmission beam 2, in total Available a total of X=64 of random access lead code, this lead code set is divided into two groups, wherein containing A in the 0th group Lead code (A<64) it is bound with downlink transmission beam direction 1, B lead code (B is contained in the 1st group<64, A+B≤64) and downlink Transmission beam direction 2 bind, i.e., when the lead code that base station detects on corresponding random access resource be belong to the 0th group it is leading Code grouping, it is implicit be notified of base station and send the user of the lead code prefer to downlink transmission beam 1, similarly, i.e., when base station exists The lead code detected on corresponding random access resource belongs to the 1st group of lead code grouping, implicit to be notified of base station transmission The user of the lead code prefers to downlink transmission beam 2.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in figure 8, in downlink transmission beam 1 and 2 corresponding random access resources, lead code set It is divided into 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of downlink transmission beam, it is preceding Leading code collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, at this time because of the random access resource of system Time location (subframe index number) is all identical, therefore time location is not included in and is calculated in RA-RNTI modes, namely preceding It states in the calculation that formula (1) provides, t_id is set as 0.For example it is assumed that having on the frequency domain of the setting random access resource of system 6 PRB, the i.e. value range of f_id are 0 to 5, i.e. (0≤f_id ＜ 6), then the calculation of RA-RNTI is：

RA-RNTI=1+f_id+6*pg_id.

If user's downlink, which measures, finds that (i.e. downlink sends what wave beam 2 measured to signal strength maximum of the downlink wave beam 2 to oneself RSRP is maximum), then user selects 2 corresponding random access running time-frequency resource of downlink wave beam, wherein the random access running time-frequency resource Initial position is the 3rd PRB of frequency domain, and has selected lead code 32 to send from lead code grouping 1, i.e. f_id=3, Pg_id=1.Final base station success is using initial position to be examined on the random access running time-frequency resource of the 3rd frequency domain position of frequency domain It measures random access lead code 32, and random access response is carried out to lead code 32, scrambled using RA-RNTI, then at this time The value of RA-RNTI is：

RA-RNTI=1+3+6*1=10.

The mode in embodiment three may be used in lead code grouping and preamble index in the present embodiment, with lead code point Group binding can also be physical broadcast signal or synchronizing signal block.

Embodiment five

In a communications system, the different random access resources for user's selection may be not different on frequency domain, only It can distinguish in the time domain, the present embodiment is directed to this random access resource, provides the generating mode of RA-RNTI.

Base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and different down going waves Beam can be tied to specified random access resource, and a kind of situation is, multiple downlinks send wave beams can be tied to it is identical random It accesses on running time-frequency resource, in Fig. 9, downlink transmission beam 1 is mapped to identical random access time-frequency with downlink transmission beam 2 In resource.Meanwhile a kind of special situation is, when system does not configure the random access resource on different frequency domain positions, i.e., under The corresponding random access running time-frequency resource of row transmission beam only has differentiation on time-domain position.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in Figure 10, in downlink transmission beam 1 and 2 corresponding random access resources, lead code set It is divided into 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of downlink transmission beam, it is preceding Leading code collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, at this time because of the random access resource of system Frequency domain position (frequency domain call number) is all identical, therefore frequency domain position is not included in and is calculated in RA-RNTI modes, namely preceding It states in the calculation that formula (1) provides, f_id is set as 0.System is set as having in a radio frames 10 subframes at this time, i.e., The value range of t_id is 0 to 9, i.e., (0≤t_id ＜ 10) then the calculation of RA-RNTI is：

RA-RNTI=1+t_id+10*pg_id.

If user's downlink, which measures, finds that (i.e. downlink sends what wave beam 2 measured to signal strength maximum of the downlink wave beam 2 to oneself RSRP is maximum), then user selects 2 corresponding random access running time-frequency resource of downlink wave beam, wherein the random access running time-frequency resource Initial position is the 5th subframe of time domain, and has selected lead code 32 to send from lead code grouping 1, i.e. t_id=5, Pg_id=1.Final base station success is using initial position to be detected on the random access running time-frequency resource of the 5th subframe of time domain Random access lead code 32, and random access response is carried out to lead code 32, it is scrambled using RA-RNTI, then RA- at this time The value of RNTI is：

RA-RNTI=1+5+10*1=16.

Embodiment six

Embodiment will be carried by specific flow to introduce the application based on preamble index (preamble_index) The novel RA-RNTI generating modes gone out.Specifically, in the present embodiment, using preamble index as lead code packet index, or Person, it is believed that when being grouped to lead code, be grouped each available random access lead code as a lead code. In this case, can be one-to-one binding, it is also possible to more when carrying out lead code grouping with downlink transmission beam binding Binding to one.

Base station will use different downlink transmission beams to send broadcast message and synchronizing signal, and different down going waves Beam can be tied to specified random access resource, and a kind of situation is, multiple downlinks send wave beams can be tied to it is identical random It accesses on running time-frequency resource, in Fig. 2, downlink transmission beam 1 is mapped to identical random access time-frequency with downlink transmission beam 2 In resource.

It is reflected it is worth noting that, " the corresponding random access resource " refers to corresponding one or more downlink wave beams The random access resource being mapped to.The same random access lead code may belong in the different random access resources being mapped to Different lead code groupings, as shown in Fig. 2, in downlink transmission beam 1 and 2 corresponding random access resources, lead code set It is divided into 2 groups, lead code 32 belongs to the 1st group of lead code grouping；And in 3 corresponding random access resource of downlink transmission beam, it is preceding Leading code collection is combined into one group, and lead code 32 belongs to the 0th group of lead code grouping.

When base station successfully is detected a random access lead code, need to send random access response to the lead code, RA-RNTI is used to carry out Scrambling Operation when sending random access response.For example, system is set as in a radio frames at this time There are 10 subframes, t_id marks are subframe index, and value range is 0 to 9, i.e. (0≤t_id ＜ 10), random access resource Frequency domain on have 6 PRB, f_id marks are PRB indexes, and value range is 0 to 5, i.e. (0≤f_id ＜ 6).At this point, then The calculation of RA-RNTI will directly use the index of lead code, such case to may be considered as a kind of spy of lead code grouping Example 64 lead codes will be divided into 64 groups in total, (i.e. the 0 to 31st group passes the 0 to 31st group indicating downlink transmission beam 1 with downlink Defeated wave beam 1 is bound), the 32 to 63rd group indicating downlink transmission beam 2 (i.e. the 32 to 63rd group is bound with downlink transmission beam 2).Cause This, pg_id=preamble_index, the then calculating of RA-RNTI is carried out by the way of formula (2), i.e.,：

RA-RNTI=1+t_id+10*f_id+60*preamble_id.

If user's downlink, which measures, finds that (i.e. downlink sends what wave beam 2 measured to signal strength maximum of the downlink wave beam 2 to oneself RSRP is maximum), then user selects 2 corresponding random access running time-frequency resource of downlink wave beam, wherein the random access running time-frequency resource Initial position is the 2nd subframe of time domain and the 3rd PRB of frequency domain, and lead code 32 has been selected from lead code set It sends, i.e. t_id=2, f_id=3, preamble_id=32.Final base station success is in the 2nd using initial position as time domain Random access lead code 32 is detected on the random access running time-frequency resource of 3rd frequency domain position of a subframe and frequency domain, and right Lead code 32 carries out random access response, is scrambled using RA-RNTI, then the value of RA-RNTI at this time is：

RA-RNTI=1+2+10*3+60*32=1952.

Embodiment seven

In the present embodiment, the specific processing that the mode using the application in EMTC systems generates RA-RNTI is introduced.

When user reads by down channel the configuration information of random access, corresponding random access time-frequency money is obtained After source and corresponding random access lead code (i.e. random access leader sequence) grouping, provided in the random access time-frequency of selection Random access lead code is sent on source.Before sending after a period of time of leading code, user needs according to random access response window Size searches for possible random access response, and this random access response is indicated with by RA-RNTI.With tradition in eMTC systems Calculation is different, calculation and a given random access channel (Physical of the RA-RNTI that the application proposes Random Access Channel, PRACH) running time-frequency resource position, first first time where the random access channel Index (such as index SFN_id (the index of the first radio frame of the of first radio frames of unit Given PRACH)) and the random access channel on the grouping of available random access lead code packet index it is related.

The resource location of the random access channel refers to the PRACH channels institute that the random access lead code sent uses The index (such as first radio frames (Radio frame) index) of first first time unit, where PRACH channels First time unit in (such as in radio frames) the second time quantum index information t_id (such as subframe index (subframe index)) and initial frequency unit index information f_id.Wherein, the second time quantum t_id of the present embodiment Identical as the t_id in previous embodiment, i.e. t_id can be the index of time quantum, can also be multiple and different time quantums The index of index combines, for example, when t_id marks are subframe index, the value range of t_id is 0 to arrive M, i.e. 0≤t_id ＜ M+1, f_id are identical as the f_id in previous embodiment, for example, when f_id marks be PRB indexes when, value range is 0 to arrive N, i.e. 0≤f_id ＜ N+1.M and N is nonnegative integer.

The packet index of the random access lead code grouping refers to belonging to the random access lead code sent corresponds to The grouping pg_id of random access lead code, random access lead code grouping herein is just for connecing at random in user is selected Enter running time-frequency resource, and the value range of pg_id is 0 to P, i.e., (0≤pg_id ＜ P+1).P is nonnegative integer.It should be noted that Be because lead code grouping also for notice the selected downlink transmission beam of base station user, lead code grouping be with Downlink transmission beam binding, when calculating RA-RNTI, lead code packet index can also be downlink transmission beam The index or synchronizing signal block (Synchronization of (Downlink Transmission beam, DL Tx beam) Signal block, SS block) index or physical broadcast signal (PBCH) index.In addition, will be leading in addition to directly Except code collection conjunction is grouped, because lead code set can be different lead code root sequence (root sequence) grouping Composition or preamble sequence and different orthogonal covering codes word (Orthogonal Cover Code, OCC) are constituted, either Preamble sequence and different cyclic shift (Cyclic Shift, CS) are constituted.Therefore, lead code packet index can also be Different root sequence of packets indexes, orthogonal covering codes word indexing, or it is different cyclic shift index.

The calculation of the RA-RNTI can be：

RA-RNTI=1+a*t_id+b*f_id+c* (SFN_id mod (Wmax/10))+d*pg_id

Wherein, a, b, c, d are respectively t_id, f_id, the coefficient of (SFN_id mod (Wmax/10)) and pg_id, and a, b, The value of c, d will meet a condition, i.e. RA-RNTI and { t_id, f_id, (SFN_id mod (Wmax/10)), pg_id } Value is wanted uniquely to correspond to, and can be extrapolated from the value of one group { t_id, f_id, (SFN_id mod (Wmax/10)), pg_id } The value of unique RA-RNTI, opposite, it can also extrapolate { t_id, f_id, (SFN_id mod from the value of a RA-RNTI (Wmax/10)), pg_id } unique value.A kind of feasible design is：The value that the value of a is 1, b be 1+a*t_id most Big value, the value of c are the maximum value of 1+a*t_id+b*f_id, and the value of d is 1+a*t_id+b*f_id+c* (SFN_id mod (Wmax/10)) maximum value, wherein Wmax refer to the size of the possible random access response window of maximum user, such as Wmax= 400, then the range of (SFN_id mod (Wmax/10)) is 0~39；I.e.

A=1,

B=max { 1+a*t_id }=M+1,

C=max { 1+a*t_id+b*f_id }=(M+1) (N+1),

D=max { 1+a*t_id+b*f_id+c* (SFN_id mod (Wmax/10)) }=(M+1) (N+1) * (Wmax/ 10)。

For example, M=9, N=5, Wmax=400；Then the calculation of RA-RNTI is：

RA-RNTI=1+t_id+10*f_id+60* (SFN_id mod (40))+2400*pg_id.

Embodiment eight

In the present embodiment, the specific processing that the mode using the application in NB-IOT systems generates RA-RNTI is introduced.

When user reads by down channel the configuration information of random access, corresponding random access time-frequency money is obtained After source and corresponding random access lead code (i.e. random access leader sequence) grouping, provided in the random access time-frequency of selection Random access lead code is sent on source.Before sending after a period of time of leading code, user needs according to random access response window Size searches for possible random access response, and this random access response is indicated with by RA-RNTI.It is passed with NB-IOT systems Calculation of uniting is different, the calculation of RA-RNTI proposed by the present invention and a given random access channel (Physical Random Access Channel, PRACH) place first time quantum index (such as index of first radio frames SFN_id (index of the first radio frame of the given PRACH)) and the random access channel The packet index of upper available random access lead code grouping is related.

The packet index of the random access lead code grouping refers to belonging to the random access lead code sent corresponds to The grouping pg_id of random access lead code, random access lead code grouping herein is just for connecing at random in user is selected Enter running time-frequency resource, and the value range of pg_id is 0 to P, i.e., (0≤pg_id ＜ P+1).P is nonnegative integer.It should be noted that Be because lead code grouping also for notice the selected downlink transmission beam of base station user, lead code grouping be with Downlink transmission beam binding, when calculating RA-RNTI, lead code packet index can also be downlink transmission beam The index or synchronizing signal block (Synchronization of (Downlink Transmission beam, DL Tx beam) Signal block, SS block) index or physical broadcast signal (PBCH) index.In addition, will be leading in addition to directly Except code collection conjunction is grouped, because lead code set can be different lead code root sequence (root sequence) grouping Composition or preamble sequence and different orthogonal covering codes word (Orthogonal Cover Code, OCC) are constituted, either Preamble sequence and different cyclic shift (Cyclic Shift, CS) are constituted.Therefore, lead code packet index can also be Different root sequence of packets indexes, orthogonal covering codes word packet index, or it is different cyclic shift packet index.

The calculation of the RA-RNTI is：

RA-RNTI=1+a*floor (SFN_id/4)+b*pg_id

Wherein, floor (x) values are the maximum integer less than x；A, b are respectively floor (SFN_id/4) and pg_id Coefficient, and the value of a, b will meet a condition, i.e. the value of RA-RNTI and { floor (SFN_id/4), pg_id } are wanted can be only One corresponds to, and the value of unique RA-RNTI can be extrapolated from the value of one group { floor (SFN_id/4), pg_id }, opposite, from The value of one RA-RNTI can also extrapolate unique value of { floor (SFN_id/4), pg_id }.A kind of feasible design It is：The maximum value that the value that the value of a is 1, b is 1+a*floor (SFN_id/4), i.e.,

A=1,

B=max { 1+a*floor (SFN_id/4) }=floor (SFN_id/4)+1,

For example, SFN_id=1024；Then the calculation of RA-RNTI is：

RA-RNTI=1+floor (SFN_id/4)+257*pg_id.

Embodiment nine

In the above-described embodiments, by the way that t_id is set as subframe index, f_id is set as PRB indexes to introduce the present invention In RA-RNTI calculation.In the present embodiment, it will expand being set as according to multiple time quantums index really for t_id It is fixed, for example, indexing (mini- according to subframe index (subframe index), time slot index (slot index), small time slot Slot index), symbol group index (symbol-group index), multiple indexes in notation index (symbol index) It determines；Expansion f_id's is set as being determined according to multiple frequency cells index, for example, according to Physical Resource Block group index (PRB- Group index), Physical Resource Block index (PRB index), sub-carrier indices (subcarrier index), subcarrier group The multiple indexes indexed in (subcarrier group index) determine.

For example, when t_id indicates the index information of time slot, which can be time slot index value, alternatively, can also Index information is determined according to time slot index and subframe index.When determining index information according to time slot index and subframe index, if The value range of subframe index t_sf is 0 to M_1, and the time slot index t_slot value ranges in a subframe are 0 to M_ 2, then the value of t_id is t_id=t_slot+ (1+M_2) * t_sf, and value range is 0 to M_1+ (1+M_1) * M_2, corresponding In other embodiment, maximum value M=M_1+ (1+M_1) the * M_2 of t_id.Preferably, generating value that principle is t_id will be with The value of { t_sf, t_slot } corresponds, i.e., the value of unique { t_sf, t_slot } can be extrapolated from a t_id, Vice versa.If for example, M_1=9, M_2=1, then t_id=t_slot+2*t_sf.It, then can be with such as when t_id values are 28 Extrapolate t_slot=0, t_sf=14.When the index combination using other times unit index, the setting of t_id can also Similarly infer, it is assumed that t_id according to time quantum 1 (t_1) index, time quantum 2 (t_2) index ..., time quantum X (t_ X) index composition, and corresponding value range is 0 to M_1,0 to M_2 ... ..., 0 to M_X successively, then the setting of t_id can be

T_id=a1*t_1+a2*t_2+ ...+ax*t_X；

Wherein,

A1=1；

A2=1+max { t_1 }=1+M_1；

A3=1+max { t_1+a2*t_2 }=(1+M_1) (1+M_2)；

…

Ax=1+max (t_1+a2*t_2+ ...+(ax-1) * t_ (X-1)).

Similarly, for example, when f_id indicates the index information of PRB, which can be sub-carrier indices, alternatively, F_id can also be determined according to sub-carrier indices and PRB indexes f_prb.When according to sub-carrier indices and PRB indexes determination f_id When, if the value range of PRB indexes is 0 to N_1, and the value range of the sub-carrier indices f_sc in a PRB is 0 to N_ 2, then the value of f_id is f | _ id=f_sc+ (1+N_2) * f_prb, value range is 0 to N_1+ (1+N_1) * N_2, corresponding In other embodiment, maximum value N=N_1+ (1+N_1) the * N_2 of f_id.Preferably, generating value that principle is f_id will be with The value of { f_sc, f_prb } corresponds, i.e., the value of unique { f_sc, f_prb } can be extrapolated from a t_id, instead It is as the same.If for example, N_1=5, N_2=11, then f_id=f_sc+12*f_prb.Such as when f_id value be 42, then may be used To extrapolate f_sc=6, f_prb=3.When using the index combination of other frequency cells index, the setting of f_id can also Similarly infer, it is assumed that f_id by frequency cells 1 (f_1) index, frequency cells 2 (f_2) index ..., frequency cells Y (f_Y) Index composition, corresponding value range are 0 to N_1,0 to N_2 ... ..., 0 to N_Y successively, then the setting of f_id can be

F_id=b1*f_1+b2*f_2+ ...+by*f_Y；

Wherein,

B1=1；

B2=1+max { f_1 }=1+N_1；

B3=1+max { f_1+b2*f_2 }=(1+N_1) (1+N_2)；

…

By=1+max (f_1+b2*f_2+ ...+(by-1) * f_ (Y-1)).

Above-mentioned is the specific implementation of information generating method in the application.Present invention also provides the UE that a kind of information generates The base station equipment that side apparatus and a kind of information generate, can be used for implementation information generation method.Figure 11 is information in the application The basic structure schematic diagram of the UE side apparatus of generation.As shown in figure 11, which includes：Transmission unit and computing unit.

Transmission unit, for sending random access lead code to base station.Computing unit, for the random access according to transmission The packet index of lead code grouping, calculates RA-RNTI where lead code.Wherein, lead code is grouped into：It corresponding one connects at random in advance Enter resource, the lead code grouping is obtained after multiple available random access lead codes are grouped.

Figure 12 is the basic structure schematic diagram for the base station equipment that information generates in the application.As shown in figure 12, the equipment Including：Receiving unit and computing unit.

Receiving unit, the random access lead code for receiving UE transmissions.Computing unit, for being connect according to the random of reception The packet index of lead code grouping, calculates RA-RNTI where entering lead code.Wherein, lead code is grouped into：Corresponding one is random in advance Access-in resource obtains the lead code grouping after being grouped multiple available random access lead codes.

From the foregoing, it can be seen that information generating method provided by the present application and equipment, are provided using time-frequency used in random access Packet index where the lead code of source position and selection generates RA-RNTI to calculate.When user is searching for possible RAR When, those will be automatically excluded by the RA-RNTI of generation used identical running time-frequency resource but be different lead code point The random access response of group saves user and searches for expense and time delay.And base station is by the random access lead code that detects, with The user for having selected different downlink transmission beams is distinguished with different random access radio network temporary identifiers in machine access response. Meanwhile generating mode is also extended to eMTC and NBIoT systems.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.

Claims

1. a kind of information generating method, which is characterized in that including：

User equipment (UE) sends random access lead code to base station；

The UE is according to the packet index of lead code grouping where the random access lead code of transmission and carries the random access The resource location of the random access resource of lead code calculates RA-RNTI；

2. according to the method described in claim 1, it is characterized in that, the random access resource is measured based on downlink according to UE What selected downlink transmission beam determined；

The random access lead code of the transmission is to be based on downlink measurement institute in the correspondence random access resource and with the UE It is selected in the lead code grouping of the downlink transmission beam binding of selection.

3. according to the method described in claim 1, it is characterized in that, the random access resource is measured based on downlink according to UE What selected physical broadcast signal or synchronizing signal block determined；

The random access lead code of the transmission is to be based on downlink measurement institute in the correspondence random access resource and with the UE It is selected in the lead code grouping of physical broadcast signal or synchronizing signal the block binding of selection.

4. according to the method described in claim 2, it is characterized in that, when different lead code groupings and different downlink transfer waves When the one-to-one bindings of Shu Jinhang, the lead code packet index is the beam index of the selected downlink transmission beam.

5. method according to claim 1,2 or 3, which is characterized in that the lead code grouping is connect according to available random Enter what the lead code root sequence of packets belonging to the lead code root sequence that lead code uses determined, wherein use the lead code with group The random access lead code that root sequence is determined belongs to identical lead code grouping；

The packet index of lead code grouping is：The root sequence point being grouped where the lead code root sequence of random access lead code Group index.

6. method according to claim 1,2 or 3, which is characterized in that the lead code grouping is connect according to available random It is determining to enter orthogonal covering codes word grouping belonging to the orthogonal covering codes word that lead code uses, wherein cover using same group orthogonal The random access lead code that lid code word is determined belongs to identical lead code grouping；

The packet index of lead code grouping is：Grouping is orthogonal where generating the orthogonal covering codes word of random access lead code Cover code word packet index.

7. method according to claim 1,2 or 3, which is characterized in that the lead code grouping is connect according to available random Enter the cyclic shift grouping determination belonging to the cyclic shift value that lead code uses, wherein true using the cyclic shift value with group The random access lead code made belongs to identical lead code grouping；

The packet index of lead code grouping is：Generate grouping where corresponding cyclic shift value when random access lead code Cyclic shift packet index.

8. method according to claim 1,2 or 3, which is characterized in that the lead code grouping is according to before random access What leading code determined, wherein each random access lead code is that a lead code is grouped；

The packet index of the lead code grouping indexes for random access lead code.

9. according to any method in claim 1 to 8, which is characterized in that the grouping rope being grouped according to the lead code Draw and carry the random access lead code random access resource resource location calculate RA-RNTI mode include：

The random access resource of the corresponding random access lead code for carrying the transmission, according to the random access resource initial position The index information t_id of place time quantum, frequency cells where the random access resource initial position index information f_id and The packet index pg_id of the lead code grouping calculates RA-RNTI, wherein RA-RNTI=1+a*t_id+b*f_id+c*pg_ id；Wherein, a, b and c are respectively the corresponding weighting coefficient of preset t_id, f_id and pg_id.

10. according to the method described in claim 9, it is characterized in that, without in time domain between working as different random access resources When differentiation, t_id is set as 0 when calculating the RA-RNTI；

And/or

When between different random access resources without the differentiation on frequency domain, set f_id to when calculating the RA-RNTI 0。

11. according to any method in claim 1 to 8, which is characterized in that the grouping rope being grouped according to the lead code Draw and carry the random access lead code random access resource resource location calculate RA-RNTI mode include：

The random access resource of the corresponding random access lead code for carrying the transmission, according to the where the random access resource First where the index SFN_id of one first time unit, the random access resource in first first time unit the The index information f_id of first frequency domain unit where the index information t_id of two time quantums, the random access resource and described The packet index pg_id of lead code grouping calculates RA-RNTI, wherein RA-RNTI=1+a*t_id+b*f_id+c* (SFN_id mod(Wmax/10))+d*pg_id；Wherein, a, b, c and d are respectively preset t_id, f_id, (SFN_id mod (Wmax/ 10)) and the corresponding weighting coefficients of pg_id, Wmax are that the maximal window of the possible random access response window of user is long.

12. according to the method described in claim 9,10 or 11, which is characterized in that a=1, b=max { 1+a*t_id }=M+1, c =max { 1+a*t_id+b*f_id }=(max { t_id }+1) (max { f_id }+1).

13. according to the method described in claim 9,10,11 or 12, which is characterized in that the time quantum of the time quantum/second Index information t_id be：The index value of the time quantum of the time quantum/second, alternatively, according to the random access resource Index value in multiple time quantums at place determines the t_id；

And/or

The index information f_id of the frequency cells is：The index value of the frequency domain unit, alternatively, being provided according to the random access Index value of the source in multiple frequency cells determines the f_id.

14. according to the method for claim 13, which is characterized in that the index value of the time quantum of the time quantum/second For：Subframe index, time slot index, small time slot index, symbol group index or notation index；And/or

Index value in the multiple time quantum includes：Subframe index, time slot index, small time slot index, symbol group index and Multiple indexes in notation index；And/or

The first time unit is radio frames；And/or

The index of the frequency cells is：Physical Resource Block PRB group indexes, PRB indexes, sub-carrier indices or subcarrier group rope Draw；And/or

Index value in the multiple frequency cells includes：PRB group indexes, PRB indexes, sub-carrier indices and subcarrier group index In multiple indexes.

15. according to any method in claim 1 to 8, which is characterized in that the grouping rope being grouped according to the lead code Draw and carry the random access lead code random access resource resource location calculate RA-RNTI mode include：

The random access resource of the corresponding random access lead code for carrying the transmission, according to the where the random access resource Packet index pg_id the calculating RA-RNTI, wherein RA- of the index SFN_id and lead code grouping of one time quantum RNTI=1+a*floor (SFN_id/4)+b*pg_id；Wherein, a and b is respectively preset floor (SFN_id/4) and pg_id Corresponding weighting coefficient, floor (x) values are the maximum integer less than x.

16. according to the method for claim 15, which is characterized in that a=1, b=max { 1+a*floor (SFN_id/4) }= floor(SFN_id/4)+1。

17. a kind of information generating method, which is characterized in that including：

The base station described connects at random according to the packet index of lead code grouping where the random access lead code of reception and carrying Enter the resource location of the random access resource of lead code, calculates RA-RNTI；

18. a kind of information generating device, which is characterized in that including：Transmission unit and computing unit；

The transmission unit, for sending random access lead code to base station；

The computing unit calculates RA- for the packet index according to lead code grouping where the random access lead code of transmission RNTI；Wherein, the lead code is grouped into the grouping of the available random access lead code of corresponding random access resource.

19. a kind of information generating device, which is characterized in that including：Receiving unit and computing unit；

The computing unit, for according to the packet index of lead code grouping where the random access lead code of reception and carrying institute The resource location of the random access resource of random access lead code is stated, RA-RNTI is calculated；