CN102811496A - Random access method - Google Patents
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Abstract
The invention provides a random access method. After sending a random access pilot frequency code on a physical random access channel resource, UE (user equipment) determines a RA-RNTI (random access-radio network temporary identity) as well as a common sub-band and a wireless frame used by a base station for the authorization of a physical downlink control channel PDCCH according to an index number Preamble_id of a sent random access sequence and the index number of a cluster in which a used synchronization sub-band is located, so as to skip to the wireless frame and the common sub-band to monitor a random access response. After receiving the Preamble code sent by the UE, the base station determines a wireless frame and a common sub-band used in sending the random access response based on the same method as the UE. Therefore, the UE supporting a single sub-band working mode is ensured to be able to normally accomplish the random access process, and the random access method is suitable for a wideband access system in which ''UE supporting single sub-band working mode'' is introduced.
Description
Technical field
The present invention relates to the access technology at random in the wireless communication system, particularly relate to the accidental access method in the broadband access system.
Background technology
Access technology is an important technology of medium access control in the communication system at random.In broadband access system based on the TD-LTE technology; Inserting at random is subscriber equipment (UE; UserEquipment) access procedure before beginning and network service, the initial access, the Radio Resource that are mainly used in subscriber equipment are controlled purposes such as (RRC) connection reconstruction and switching.Fig. 1 is the competitive random access method flow chart in the existing LTE system, mainly comprises 4 steps:
Step 1, UE sends in the uplink random access channel and inserts the Preamble sign indicating number at random.
Step 2, base station (eNB) goes up the transmission accidental access response at DSCH Downlink Shared Channel (DL-SCH).
In this step; The base station needs earlier UE to be carried out Physical Downlink Control Channel (PDCCH) and authorizes; The physical down link sharing channel (PDSCH) that is used to send accidental access response with notice UE; Then, on the PDSCH that is notified, send the accidental access response that carries random access radio network temporary mark (RA-RNTI).The Physical Random Access Channel resource that this UE transmission Preamble sign indicating number is utilized in this RA-RNTI and the step 1 is complementary.Like this; When UE receives the accidental access response that carries this RA-RNTI in the accidental access response window; Then think and this receiving random access response success will continue execution in step 3, otherwise think that this inserts the accidental access response failure; Will be again execution in step 1 again, to initiate random access procedure again.
Step 3, UE sends the information of uplink first on the UL-SCH channel.
Here, after UE successfully receives accidental access response, will send the information of transmitting uplink first according to the uplink authorization that carries in the accidental access response, this step is supported HARQ, and wherein, the maximum retransmission of HARQ is notified by high level.
Step 4, eNB is in DL-SCH channel competition solution information.
Here, when the base station successfully receives the message that UE sends in step 3 after, will in the competition solution information of feedback, comprise competition resolution sign to this UE.Like this, when UE when competition judgement timer successfully receives the competition solution information that includes this competition resolution sign between the starting period, think that then this inserts success at random, otherwise think this access failure at random.
In broadband access system, system's available bandwidth is divided into a plurality of continuous or discrete subbands, adopts OFDM (OFDM) technical transmission on each subband.Is synchronous subband and common subband according to function with sub-band division.The major function of subband is the synchronous and broadcast channel of up-downgoing synchronously.Provided the synchronous sub band structure in 4 radio frames among Fig. 2, as shown in Figure 2, each radio frames comprises 5 sub-frame; Wherein, First subframe is a descending sub frame, and second sub-frame is a special subframe, third and fourth, five sub-frame are sub-frame of uplink; The ascender of special subframe and sub-frame of uplink will be as the PRACH resources, and just the dash area shown in Fig. 2 allows the user of a sub-district to insert at random.Common subband is used for the transmission of regular traffic.
In order to reduce cost and implementation complexity, in broadband access system, introduced " UE supports list band mode of operation " this technology at present, promptly UE receiver bandwidth needs not to be the whole system bandwidth, and only support receives single subband and needn't receive whole subbands.Like this, can reduce requirement, also reduce the demand of system hardware capabilities to UE receiver bandwidth.One of them typical application scene is the electric power load monitoring and control communication network; Its frequency spectrum is discrete is distributed in the 230M frequency range, and its bandwidth is 8.15MHz, has the subband of 40 25kHz; The subband of minimum frequency is 223.525MHz, and the subband of high frequency points is 231.65MHz.
In the accidental access method of above-mentioned LTE system, UE receiver bandwidth is the whole system bandwidth, and promptly UE need all receive data on the subbands.Like this, for the broadband access system that UE supports list band mode of operation, because the reception limited bandwidth of UE; Can not receive a plurality of subbands simultaneously; UE can't be known the transmission subband of accidental access response probably, correspondingly, and also normal receiving random access response message; Therefore, can't utilize existing LTE system random access method to realize the access at random of UE.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of accidental access method, and this method is applicable in the broadband access system of having introduced " UE supports list band mode of operation ".
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of accidental access method, this method is to the user equipment (UE) of supporting list band mode of operation, and this method may further comprise the steps:
A, user equipment (UE) are confirmed the current employed synchronous subband that inserts at random, in bunch corresponding random access sequence of said synchronous subband place, select one at random as current random access sequence; On said synchronous subband, selected random access sequence is sent to the base station; Call number f_id according to the call number preamble_id of selected random access sequence and said synchronous subband place bunch confirms that random access radio network temporary mark RA-RNTI and base station are used to send the common subband and the radio frames of accidental access response message;
B, said base station confirm said RA-RNTI and said common subband and the radio frames that is used to send accidental access response message according to the call number f_id at the call number preamble_id of the said random access sequence that receives and said synchronous subband place bunch; Utilize said common subband and the radio frames that is used to send accidental access response message, send the accidental access response message that carries said RA-RNTI to said UE;
If the said UE of c listens to the accidental access response message that carries said RA-RNTI on said common subband that is used to send accidental access response message and radio frames; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method;
The information of the said uplink first that d, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
The invention provides another kind of accidental access method, this method is to the user equipment (UE) of supporting list band mode of operation, and this method may further comprise the steps:
A, user equipment (UE) are confirmed the current employed synchronous subband that inserts at random, in bunch corresponding random access sequence of said synchronous subband place, select one at random as current random access sequence; On said synchronous subband, selected random access sequence is sent to the base station; Call number f_id according to the call number preamble_id of selected random access sequence and said synchronous subband place bunch confirms that random access radio network temporary mark RA-RNTI and base station are used for the common subband and the radio frames of physical downlink control channel PDCCH mandate;
B, said base station confirm common subband and radio frames that said RA-RNTI and the said PDCCH of being used for authorize according to the call number f_id at the call number preamble_id of the said random access sequence that receives and said synchronous subband place bunch; Common subband and the radio frames of utilizing the said PDCCH of being used for to authorize are carried out PDCCH to said UE and are authorized, and give said UE according to the accidental access response message that said PDCCH authorizes transmission to carry said RA-RNTI;
If the said UE of c listens to said PDCCH and authorizes on said common subband that is used to send accidental access response message and radio frames; And authorize according to said PDCCH and to receive the accidental access response message that carries said RA-RNTI; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method;
The information of the said uplink first that d, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
In sum; The accidental access method that the present invention proposes; UE sends on Physical Random Access Channel (PRACH) resource and inserts at random after pilot tone (Preamble) sign indicating number; Call number f_id according to the call number preamble_id of the random access sequence that sends and employed synchronous subband place bunch confirms that RA-RNTI and base station are used for the common subband and the radio frames of physical downlink control channel PDCCH mandate, monitor accidental access response so that jump on this radio frames and the common subband.Base station (eNB) is behind the Preamble sign indicating number that receives the UE transmission; Also confirm to send employed radio frames of accidental access response and common subband based on the method identical with UE; So, can guarantee that UE can receive the accidental access response message that send the base station on the list band that it is supported, thereby can guarantee to support that the UE of list band mode of operation can normally accomplish random access procedure; Therefore, the present invention is applicable in the broadband access system of having introduced " UE supports list band mode of operation ".
Description of drawings
Fig. 1 is the sketch map of access process at random in the existing LTE system;
Fig. 2 is traditional synchronous sub band structure sketch map;
Fig. 3 is the schematic flow sheet of the embodiment of the invention one;
Fig. 4 is the schematic flow sheet of the embodiment of the invention two.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is done to describe in detail further below.
Core concept of the present invention is: based on the resource distribution characteristics of broadband access system; Make UE and base station determine subband and the radio frames that the base station is used to send accidental access response according to all obtainable information of both sides; Like this; Can guarantee that UE can receive the accidental access response message that send the base station on the list band that it is supported, thereby guarantee to support that the UE of list band mode of operation can normally accomplish random access procedure.
Fig. 3 is the schematic flow sheet of the embodiment of the invention one.Accidental access method among the embodiment one mainly may further comprise the steps:
Here need to prove that in existing broadband access system, system can carry out the subband of each sub-district bunch usually; Have a synchronous subband and some common subbands in each bunch at least, for example, for typical application scene one electric power load monitoring and control communication network; Its system adopts identical networking; Each sub-district has 40 subbands and is divided into 3 bunches, and 1 synchronous subband is arranged in each bunch, other be common subband.
In practical application, UE can adopt and select at random perhaps to confirm the current employed synchronous subband that inserts at random according to signal quality, is specially:
From the synchronous sub band resources that said UE supports, select the maximum synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, from the synchronous sub band resources that said UE supports, select one to insert employed synchronous subband at random at random as current.
Further, in order to improve the access success rate, can on the basis of said method, combine in the broadcasting about bunch busy indication select idle synchronous subband to insert, particularly, said confirm current insert at random employed synchronous subband can also for:
From the synchronous sub band resources that said UE supports, select the maximum and idle synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, the synchronous subband of from the synchronous sub band resources that said UE supports, selecting a free time at random inserts employed synchronous subband at random as current.
Preferably, said RA-RNTI can be according to formula RA-RNTI=R+preamble_id+N
Preamble* f_id confirms.
Wherein, R is preset sign original position; N
PreambleBe available random access sequence number, 0＜=preamble_id＜N
Preamble, N
Preamble=min{N
Preamble_A, T*N
SERV_RB, N
Preamble_ABe the lead code available largest random access sequence number preset according to network, T is the time-multiplexed cycle of Physical Random Access Channel PRACH resource of co-frequency cell, is unit with the radio frames, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
In this step; When UE sends random access sequence to behind the base station; To confirm that random access radio network temporary mark RA-RNTI and base station are used to send the common subband and the radio frames of accidental access response message, likewise according to the call number f_id at the call number preamble_id of selected random access sequence and said synchronous subband place bunch; The base station also will be after receiving random access sequence; The common subband and the radio frames that adopt identical method to determine random access radio network temporary mark RA-RNTI and be used to send accidental access response message, like this, UE just can receive corresponding accidental access response sequence.
Preferable, can be according to formula N
Preamble=min{N
Preamble_A, T*N
SERV_RBConfirm available random access sequence number N
Preamble, promptly at definite N
PreambleThe time to consider on the one hand the sum of random access sequence; To consider also that on the one hand UE can be used in the number of sub-bands of monitoring accidental access response a time division multiplexing in the cycle; So, can support the unbalanced of common number of sub-bands between the sub-district subband bunch, can be according to the common sub band number in the sub-district subband bunch; Support lead code as much as possible, support promptly that also UE as much as possible initiates to insert at random simultaneously.
Particularly, can be according to SN=preamble_id mod N
SERV_RB, confirm the said common subband that is used to send accidental access response message, wherein, SN is the sub-relatively reel number of said common subband, said sub-relatively reel number be in the subband bunch all common subbands at the sequence number that obtains after with ascending order or descending on the frequency domain, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
Particularly, the said radio frames that is used to send accidental access response message, can be according to formula:
Confirm that wherein, TN is the call number of said radio frames, SFN
Msg1Be the radio frame number that said UE sends selected random access sequence, T
SBe that the accidental access response of presetting is monitored adjustment parameter, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
Here, the base station according to step 301 in identical method, confirm said RA-RNTI and said common subband and the radio frames that is used to send accidental access response message.
If the said UE of step 303 listens to the accidental access response message that carries said RA-RNTI on said common subband that is used to send accidental access response message and radio frames; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method.
The information of the said uplink first that step 304, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
In the foregoing description one, the PDCCH mandate need not carried out to UE in the base station, but directly accidental access response is sent to UE, so can save Internet resources, improves access efficiency.Certainly in practical application, also can send accidental access response message,, further specify through two pairs of these methods of the embodiment of the invention below so that compatible mutually with existing system through the mode that PDCCH authorizes.
The embodiment of the invention two mainly may further comprise the steps:
In this step, confirm currently to insert employed synchronous subband at random, confirm that the method for said RA-RNTI is identical with step 301, repeats no more at this.
In the present embodiment, common subband and the radio frames that PDCCH authorizes all will be confirmed to be used for according to preamble_id and f_id in UE and base station.Preferably, according to SN=preamble_id mod N
SERV_RB, confirm the common subband that the said PDCCH of being used for authorizes, wherein, SN is the sub-relatively reel number of said common subband, said sub-relatively reel number be in the subband bunch all common subbands at the sequence number that obtains after with ascending order or descending on the frequency domain, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
Preferably, being used for radio frames that PDCCH authorizes can the formula basis
Obtain, wherein, TN is the radio frame number of said radio frames, SFN
Msg1Be the radio frame number that said UE sends selected random access sequence, T
SBe that the accidental access response of presetting is monitored adjustment parameter, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
If the said UE of step 403 listens to said PDCCH and authorizes on said common subband that is used to send accidental access response message and radio frames; And authorize according to said PDCCH and to receive the accidental access response message that carries said RA-RNTI; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method.
The information of the said uplink first that step 404, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
In sum, more than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. accidental access method, this method is characterized in that to the user equipment (UE) of supporting list band mode of operation this method may further comprise the steps:
A, user equipment (UE) are confirmed the current employed synchronous subband that inserts at random, in bunch corresponding random access sequence of said synchronous subband place, select one at random as current random access sequence; On said synchronous subband, selected random access sequence is sent to the base station; Call number f_id according to the call number preamble_id of selected random access sequence and said synchronous subband place bunch confirms that random access radio network temporary mark RA-RNTI and base station are used to send the common subband and the radio frames of accidental access response message;
B, said base station confirm said RA-RNTI and said common subband and the radio frames that is used to send accidental access response message according to the call number f_id at the call number preamble_id of the said random access sequence that receives and said synchronous subband place bunch; Utilize said common subband and the radio frames that is used to send accidental access response message, send the accidental access response message that carries said RA-RNTI to said UE;
If the said UE of c listens to the accidental access response message that carries said RA-RNTI on said common subband that is used to send accidental access response message and radio frames; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method;
The information of the said uplink first that d, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
2. method according to claim 1 is characterized in that, according to RA-RNTI=R+preamble_id+N
Preamble* f_id confirms said RA-RNTI, and wherein, R is preset sign original position, N
PreambleBe available random access sequence number, 0＜=preamble_id＜N
Preamble, N
Preamble=min{N
Preamble_A, T*N
SERV_RB, N
Preamble_ABe the lead code available largest random access sequence number preset according to network, T is the time-multiplexed cycle of Physical Random Access Channel PRACH resource of co-frequency cell, is unit with the radio frames, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
3. method according to claim 1 is characterized in that, according to SN=preamble_id mod N
SERV_RB, confirm the said common subband that is used to send accidental access response message, wherein, SN is the sub-relatively reel number of said common subband, said sub-relatively reel number be in the subband bunch all common subbands at the sequence number that obtains after with ascending order or descending on the frequency domain, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
4. method according to claim 1 is characterized in that, according to
Confirm to be used to send the radio frames of accidental access response message, wherein, TN is the call number of said radio frames, SFN
Msg1Be the radio frame number that said UE sends selected random access sequence, T
SBe that the accidental access response of presetting is monitored adjustment parameter, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
5. method according to claim 1 is characterized in that, saidly confirms currently to insert employed synchronous subband at random and be:
From the synchronous sub band resources that said UE supports, select the maximum synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, from the synchronous sub band resources that said UE supports, select one to insert employed synchronous subband at random at random as current.
6. method according to claim 1 is characterized in that, saidly confirms currently to insert employed synchronous subband at random and be:
From the synchronous sub band resources that said UE supports, select the maximum and idle synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, the synchronous subband of from the synchronous sub band resources that said UE supports, selecting a free time at random inserts employed synchronous subband at random as current.
7. accidental access method, this method is characterized in that to the user equipment (UE) of supporting list band mode of operation this method may further comprise the steps:
A, user equipment (UE) are confirmed the current employed synchronous subband that inserts at random, in bunch corresponding random access sequence of said synchronous subband place, select one at random as current random access sequence; On said synchronous subband, selected random access sequence is sent to the base station; Call number f_id according to the call number preamble_id of selected random access sequence and said synchronous subband place bunch confirms that random access radio network temporary mark RA-RNTI and base station are used for the common subband and the radio frames of physical downlink control channel PDCCH mandate;
B, said base station confirm common subband and radio frames that said RA-RNTI and the said PDCCH of being used for authorize according to the call number f_id at the call number preamble_id of the said random access sequence that receives and said synchronous subband place bunch; Common subband and the radio frames of utilizing the said PDCCH of being used for to authorize are carried out PDCCH to said UE and are authorized, and give said UE according to the accidental access response message that said PDCCH authorizes transmission to carry said RA-RNTI;
If the said UE of c listens to said PDCCH and authorizes on said common subband that is used to send accidental access response message and radio frames; And authorize according to said PDCCH and to receive the accidental access response message that carries said RA-RNTI; Then send the information of uplink first and give said base station; Otherwise confirm this access failure at random, withdraw from said method;
The information of the said uplink first that d, said base station basis receive is sent the competition that includes said competition resolution sign to said UE and is solved information; If said UE successfully receives said competition at competition judgement timer and solves information between the starting period, confirm that then this inserts success at random, otherwise confirm this access failure at random.
8. method according to claim 7 is characterized in that, according to RA-RNTI=R+preamble_id+N
Preamble* f_id confirms said RA-RNTI, and wherein, R is preset sign original position, N
PreambleBe available random access sequence number, 0＜=preamble_id＜N
Preamble, N
Preamble=min{N
Preamble_A, T*N
SERV_RB, N
Preamble_ABe the lead code available largest random access sequence number preset according to network, T is the time-multiplexed cycle of Physical Random Access Channel PRACH resource of co-frequency cell, is unit with the radio frames, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
9. method according to claim 7 is characterized in that, according to SN=preamble_id mod N
SERV_RB, confirm the common subband that the said PDCCH of being used for authorizes, wherein, SN is the sub-relatively reel number of said common subband, said sub-relatively reel number be in the subband bunch all common subbands at the sequence number that obtains after with ascending order or descending on the frequency domain, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
10. method according to claim 7 is characterized in that, according to
Confirm to be used for the radio frames that PDCCH authorizes, wherein, TN is the radio frame number of said radio frames, SFN
Msg1Be the radio frame number that said UE sends selected random access sequence, T
SBe that the accidental access response of presetting is monitored adjustment parameter, N
SERV_RBBe the common number of sub-bands in the said synchronous subband place bunch.
11. method according to claim 7 is characterized in that, saidly confirms currently to insert employed synchronous subband at random and be:
From the synchronous sub band resources that said UE supports, select the maximum synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, from the synchronous sub band resources that said UE supports, select one to insert employed synchronous subband at random at random as current.
12. method according to claim 7 is characterized in that, saidly confirms currently to insert employed synchronous subband at random and be:
From the synchronous sub band resources that said UE supports, select the maximum and idle synchronous subband of Reference Signal Received Power to insert employed synchronous subband at random as current;
Perhaps, the synchronous subband of from the synchronous sub band resources that said UE supports, selecting a free time at random inserts employed synchronous subband at random as current.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10201016B2 (en) * | 2015-02-18 | 2019-02-05 | Qualcomm Incorporated | Techniques for cell access using an unlicensed radio frequency spectrum band |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101540978A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device |
| CN101640922A (en) * | 2009-01-24 | 2010-02-03 | 中兴通讯股份有限公司 | Identification method of downlink component carrier wave in random access process and base station |
| CN101674661A (en) * | 2009-10-14 | 2010-03-17 | 普天信息技术研究院有限公司 | Random access method in long term evolution system |
| CN101695196A (en) * | 2009-10-20 | 2010-04-14 | 普天信息技术研究院有限公司 | Method for increasing random access success rate under competition mode, system and device thereof |
| CN101835273A (en) * | 2009-03-13 | 2010-09-15 | 中兴通讯股份有限公司 | Random access method and terminal |
| CN101998550A (en) * | 2009-08-11 | 2011-03-30 | 大唐移动通信设备有限公司 | Method and device for assigning RNTI (Radio Network Temporary Identifier) in carrier aggregation system |
| CN101998636A (en) * | 2009-08-14 | 2011-03-30 | 大唐移动通信设备有限公司 | Using method, system and equipment of terminal identification |
-
2011
- 2011-05-31 CN CN201110146608.1A patent/CN102811496B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640922A (en) * | 2009-01-24 | 2010-02-03 | 中兴通讯股份有限公司 | Identification method of downlink component carrier wave in random access process and base station |
| CN101835273A (en) * | 2009-03-13 | 2010-09-15 | 中兴通讯股份有限公司 | Random access method and terminal |
| CN101540978A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device |
| CN101998550A (en) * | 2009-08-11 | 2011-03-30 | 大唐移动通信设备有限公司 | Method and device for assigning RNTI (Radio Network Temporary Identifier) in carrier aggregation system |
| CN101998636A (en) * | 2009-08-14 | 2011-03-30 | 大唐移动通信设备有限公司 | Using method, system and equipment of terminal identification |
| CN101674661A (en) * | 2009-10-14 | 2010-03-17 | 普天信息技术研究院有限公司 | Random access method in long term evolution system |
| CN101695196A (en) * | 2009-10-20 | 2010-04-14 | 普天信息技术研究院有限公司 | Method for increasing random access success rate under competition mode, system and device thereof |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9924546B2 (en) | 2013-01-18 | 2018-03-20 | Zte Corporation | Method and device for sending and receiving random access sequence |
| WO2014110925A1 (en) * | 2013-01-18 | 2014-07-24 | 中兴通讯股份有限公司 | Sending method and apparatus, receiving method and apparatus of random access sequence |
| CN104185293A (en) * | 2013-05-24 | 2014-12-03 | 普天信息技术研究院有限公司 | Random access signaling process resource allocation method |
| CN104185293B (en) * | 2013-05-24 | 2017-09-15 | 普天信息技术研究院有限公司 | A kind of resource allocation methods of random access signaling flow |
| CN104956706A (en) * | 2013-11-21 | 2015-09-30 | 华为技术有限公司 | Calling method and base station apparatus for wireless spectrum resource |
| US10009877B2 (en) | 2013-11-21 | 2018-06-26 | Huawei Technologies Co., Ltd. | Wireless spectrum resource sharing method and base station |
| CN107211460A (en) * | 2015-02-13 | 2017-09-26 | 瑞典爱立信有限公司 | The method and apparatus of Stochastic accessing |
| WO2017028273A1 (en) * | 2015-08-19 | 2017-02-23 | 富士通株式会社 | Random access method and apparatus for supporting multiple transmission time intervals, and communication system |
| US10440754B2 (en) | 2015-08-19 | 2019-10-08 | Fujitsu Limited | Random access method and apparatus for supporting multiple transmission time intervals and communications system |
| CN108353430A (en) * | 2015-08-25 | 2018-07-31 | 联想创新有限公司（香港) | The random access procedure of machine type communication |
| CN106793148A (en) * | 2015-11-20 | 2017-05-31 | 中兴通讯股份有限公司 | The method and device of Stochastic accessing |
| WO2017084236A1 (en) * | 2015-11-20 | 2017-05-26 | 中兴通讯股份有限公司 | Random access method and apparatus |
| US10813135B2 (en) | 2015-11-20 | 2020-10-20 | Zte Corporation | Random access method and apparatus |
| CN106792497A (en) * | 2016-11-03 | 2017-05-31 | 展讯通信（上海）有限公司 | Base station, user equipment and its cut-in method |
| CN108282898A (en) * | 2017-01-06 | 2018-07-13 | 华为技术有限公司 | Accidental access method, user equipment and the network equipment |
| CN108282898B (en) * | 2017-01-06 | 2023-10-24 | 华为技术有限公司 | Random access method, user equipment and network equipment |
| WO2018171586A1 (en) * | 2017-03-20 | 2018-09-27 | 华为技术有限公司 | Communication method, terminal and network device |
| US11044761B2 (en) | 2017-03-20 | 2021-06-22 | Huawei Technologies Co., Ltd. | Communication method, terminal, and network device |
| CN108738136A (en) * | 2017-04-13 | 2018-11-02 | 普天信息技术有限公司 | A kind of code division multiplexing random access resource selection method |
| CN108738134A (en) * | 2017-04-13 | 2018-11-02 | 普天信息技术有限公司 | A kind of time division multiplexing random access resource selection method |
| WO2019128765A1 (en) * | 2017-12-29 | 2019-07-04 | 华为技术有限公司 | Channel listening type indication method and device |
| US11553521B2 (en) | 2017-12-29 | 2023-01-10 | Huawei Technologies Co., Ltd. | Channel listening type indication method and apparatus |
| CN111567129A (en) * | 2018-02-07 | 2020-08-21 | 华为技术有限公司 | Random access method and device |
| WO2019153158A1 (en) * | 2018-02-07 | 2019-08-15 | 华为技术有限公司 | Method and apparatus for random access |
| CN110392434A (en) * | 2018-04-20 | 2019-10-29 | 普天信息技术有限公司 | Method, base station and the terminal of access frequency point under a kind of discrete subband |
| CN110392434B (en) * | 2018-04-20 | 2023-08-15 | 普天信息技术有限公司 | Method for accessing frequency point under discrete sub-band, base station and terminal |
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| CN112351484A (en) * | 2019-08-08 | 2021-02-09 | 普天信息技术有限公司 | Downlink synchronization method, network side equipment and mobile terminal |
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