CN102892192A - Initial access method, device and system under multi-timing groups - Google Patents
Initial access method, device and system under multi-timing groups Download PDFInfo
- Publication number
- CN102892192A CN102892192A CN2011102039727A CN201110203972A CN102892192A CN 102892192 A CN102892192 A CN 102892192A CN 2011102039727 A CN2011102039727 A CN 2011102039727A CN 201110203972 A CN201110203972 A CN 201110203972A CN 102892192 A CN102892192 A CN 102892192A
- Authority
- CN
- China
- Prior art keywords
- residential quarter
- auxiliary residential
- regularly
- access response
- accidental access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an initial access method, an initial access device and an initial access system under multi-timing groups, which are used for solving the problem of uplink synchronization for multiple uplink timing groups between a base station and a user terminal in a multi-carrier system. The method comprises the steps of transmitting mapping relation between each timing group and uplink carriers to a user terminal through system information, adding and activating an auxiliary cell that does not belong to the same timing group with a main cell, transmitting random access response related to the timing group of lately activated auxiliary cell on a download carrier of the main cell or the downlink carrier of the lately activated auxiliary cell; acquiring the timing ahead command of the timing group from the random access response and performing the uplink synchronization of the auxiliary cell. By virtue of the method, the uplink synchronization of multiple timing groups can be realized; and the problem of data receiving interference at the base station end due to uplink desynchrony is avoided.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to initial access method, Apparatus and system under a plurality of timing groups in a kind of Long Term Evolution (Long Term Evolution, LTE) mobile communication system.
Background technology
Along with the development of Mobile Communication Industry and to the continuous growth of mobile data services demand, people are more and more higher to the requirement of the speed of mobile communication and Qos, so before 3G (Third Generation) Moblie 3G does not also have extensive commercialization, just begun the research-and-development activity to next generation mobile communication system, wherein relatively be typically the Long Term Evolution LTE project that third generation partner program 3GPP starts, the available maximum spectrum bandwidth of LTE system is 20MHz (megahertz).Along with the further evolution of network, LTE-A can provide the spectral bandwidth up to 100MHz as the evolution system of LTE, supports more flexible higher-quality communication, and the LTE system possesses good backwards compatibility simultaneously.A plurality of component carriers (CC, component carrier) are arranged in the LTE-A system, and a LTE terminal can only be operated on the CC of some backward compatibility, and the stronger LTE-A terminal of ability can be transmitted at a plurality of CC simultaneously.
The reason that user terminal in the LTE system (User Equipment, UE) accesses at random mainly contains following several:
The first, user terminal is also referred to as initial access (Initial Access) from idle (RRC_IDLE) state connecting system of Radio Resource control;
The second, user terminal are initiated at random access behind Radio Link Failure, it also is a kind of of initial access;
The third, user terminal needs to access at random in cell switch process;
The 4th kind, user terminal has downlink data to arrive when being in Radio Resource control connection (RRC_CONNECTED) state;
The 5th kind, user terminal has upstream data to arrive when being in the RRC_CONNECTED state.
For the third and the 4th kind of situation, if dedicated preamble (preamble) is arranged, then can use non-competing at random access, the process of non-competing at random access mainly is divided into following three steps as shown in Figure 1:
Step 1, message 0: the base station is that user terminal divides and is used in non-random access lead code sign (the Random Access Preamble that unexpectedly strives at random access, ra-Preamble Index) and at random access Physical Random Access Channel (the Physical Random Access Channel that uses, PRACH) mask numbering (PRACH Mask Index, ra-PRACH-Maskindex).Arrive the non-competing at random access that causes for downlink data, send to user terminal by Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) ra-Preambleindex and ra-PRACH-Maskindex; Non-ly unexpectedly strive at random access based on what switching caused, ra-Preambleindex and ra-PRACH-Maskindex are carried in the switching command (handover command) send to user terminal.
Step 2, message 1: user terminal is according to the ra-Preambleindex and the ra-PRACH-Maskindex that receive, on the PRACH of ra-PRACH-Maskindex appointment resource, send the dedicated preamble preamble of appointment in the message 0 to the base station, it is rear according to message 1 calculating uplink timing advance (TA, Timing Advance) that the base station receives message 1.
Step 3, message 2: the base station sends accidental access response to user terminal, comprises up TA information in the accidental access response, notifies the Timing Advance of follow-up uplink.
The process that competition accesses at random mainly is divided into following four steps as shown in Figure 2:
Step 1, message 1: user terminal selecting accesses at random preamble and PRACH resource and uses this PRACH resource to send the selected preamble that accesses at random to the base station;
Step 2, message 2: the base station receives preamble, calculates up TA, and sends accidental access response to user terminal, comprises at least this up TA information in the accidental access response and for ULgrant (uplink scheduling information) information of message 3;
Step 3, message 3: user terminal sends uplink at the UL grant of message 2 appointments, the content of message 3 uplink of different random access reason is different, such as the at random access reason for initial access, what message 3 was transmitted is that RRC (Radio Resource Control, Radio Resource control) connects the request of foundation;
Step 4, message 4: the base station sends competition to user terminal and solves message, and user terminal can judge according to message 4 whether at random access is successful.
User terminal is finished the foundation of uplink synchronous according to the up TA that obtains in the above-mentioned random access procedure.Uplink synchronous is used for keeping the upstream data between user terminal and the base station synchronous, is convenient to user terminal and carries out transmitting uplink data and downlink data is sent mixed automatic retransfer request (HARQ, Hybrid Automatic Repeat Req) feedback information.
Uplink synchronous need to be safeguarded uplink synchronous after setting up.Regulation is by the base station maintenance uplink synchronous in the LTE system, and base station and user terminal are safeguarded respectively a upstream synchronous timing device (TA timer, TAT); After up TA is recomputated according to the uplink of user terminal in the base station, comprise the timing advance order (TA command) of this up TA and start TAT to the user terminal transmission; If user terminal can not correctly receive TA command, then send negative response (NACK, Negative Acknowledgement) message to the base station, the base station resends TA command and restarts TAT after time T 1; User terminal correctly receives TA command and then starts the TAT of user terminal and reply (ACK, Acknowledgement) message to the base station transmission, and user terminal carries out uplink according to the TA among the TA command; The base station receives the TAT of restarting the base station after the ACK message that user terminal sends.The base station is carried out said process one time every the T2 time, and T2 is less than the timing length of TAT.If it is overtime that the base station does not have for the TAT of certain user terminal, then the base station thinks that this user terminal is in synchronous regime.If it is overtime that the TAT that user terminal oneself is safeguarded does not have, then user terminal thinks it oneself is synchronous.
The uplink synchronous that there is no at present a plurality of timing advance groups in the multicarrier system for LTE-A is set up and maintenance mode, causes in the multicarrier system, can't realize the uplink synchronous of a plurality of up timing group between base station and user terminal.
Summary of the invention
In view of this, main purpose of the present invention is to provide initial access method, the Apparatus and system under a kind of many regularly groups, be used for realizing multicarrier system, the uplink synchronous of a plurality of up timing group between base station and user terminal, thus finish initial access process.
For achieving the above object, technical scheme of the present invention is achieved in that
Initial access method under a kind of many regularly groups, the method comprises:
Send the mapping relations of each timing group and up-link carrier to user terminal by system information;
Realize the initial access of user terminal in the main plot.
Preferably, in described system information, comprise Physical Random Access Channel PRACH configuration information, and the mapping relations of described each timing group and up-link carrier.
Preferably, after the initial access of main plot realization user terminal, described method also comprises:
Interpolation and activation and main plot do not belong to the auxiliary residential quarter of same timing group;
Issue the relevant accidental access response of the affiliated regularly group in auxiliary residential quarter of new activation, user terminal carries out uplink synchronous in auxiliary residential quarter obtain the timing advance order of regularly organizing under the auxiliary residential quarter from accidental access response after.
Preferably, connect reallocation message by radio resource control RRC and add the auxiliary residential quarter that does not belong to same timing group with the main plot, user terminal connects the PRACH configuration information that obtains the auxiliary residential quarter of interpolation the reallocation message from RRC, and wherein the PRACH configuration information comprises special-purpose at random access configuration information or do not comprise;
Auxiliary residential quarter is activated by medium access key-course control unit MAC CE in the base station.
Preferably, the accidental access response that regularly group is relevant under the described auxiliary residential quarter that issues new activation and user terminal obtain under the auxiliary residential quarter regularly from described accidental access response, and the method for the timing advance order of group is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, and therefrom obtains the regularly timing advance order of group under the auxiliary residential quarter.
Preferably, the accidental access response that regularly group is relevant under the described auxiliary residential quarter that issues new activation and user terminal obtain under the auxiliary residential quarter regularly from described accidental access response, and the method for the timing advance order of group is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of auxiliary residential quarter sends the new auxiliary residential quarter of activating, the descending carrier of user terminal in the auxiliary residential quarter of new activation receives newly regularly organizes relevant accidental access response under the auxiliary residential quarter of activation, and therefrom obtains the timing advance order of the affiliated timing group in auxiliary residential quarter.
Preferably, the accidental access response that regularly group is relevant under the described auxiliary residential quarter that issues new activation and user terminal obtain under the auxiliary residential quarter regularly from described accidental access response, and the method for the timing advance order of group is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized.
Based on the embodiment of the invention, the present invention also proposes a kind of user terminal UE, and this user terminal comprises:
Acquisition module, the system information that is used for issuing from the base station obtain the PRACH configuration information of main plot and each and regularly organize mapping relations with up-link carrier; Reach from RRC and connect the PRACH configuration information that obtains auxiliary residential quarter the reconfiguration message;
The main plot access module is used for initially being linked into the main plot according to the system information of obtaining.
Preferably, this user terminal also comprises auxiliary cell synchronous module,
Described auxiliary cell synchronous module is used for the up-downgoing carrier wave in a pair of auxiliary residential quarter of new activation, and when up-link carrier wherein and main plot do not belong to same timing group, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter; Or
Be used for new when activating a pair of auxiliary residential quarter up-downgoing carrier wave and this up-link carrier and main plot and not belonging to same timing group, the accidental access response that the timing group is correlated with under the auxiliary residential quarter of the new activation of descending carrier reception of the auxiliary residential quarter of newly activating, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter; Or
Be used for the up-downgoing carrier wave in a pair of auxiliary residential quarter of new activation, and when up-link carrier wherein and main plot do not belong to same timing, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized, carry out uplink synchronous in corresponding auxiliary residential quarter.
Based on the embodiment of the invention, the present invention also proposes a kind of base station, and this base station comprises:
Issue module, be used for transmitting system information, the PRACH configuration information that comprises the main plot in the described system information reaches the mapping relations of respectively regularly organizing with up-link carrier;
Access processing module in main plot for the main plot access request of response user terminal, realizes that user terminal is in the initial access of main plot.
Preferably, described base station also comprises:
Add active module, be used for adding and activating auxiliary residential quarter;
The accidental access response module for the accidental access response that sends main plot and the new auxiliary residential quarter of activating, comprises the affiliated regularly timing advance order of group in auxiliary residential quarter in the accidental access response of described auxiliary residential quarter.
Preferably, the described accidental access response module accidental access response that the timing group is correlated with under the new auxiliary residential quarter of activating of descending carrier transmission of main plot comprises in the described accidental access response: newly activate timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI regularly organized under the auxiliary residential quarter; Or comprise in the described accidental access response: the indication of auxiliary residential quarter, timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI; Or described accidental access response module sends the new regularly relevant accidental access response of group that activates under the auxiliary residential quarter at the descending carrier of the new auxiliary residential quarter of activating, and comprises in the described accidental access response: newly activate under the auxiliary residential quarter regularly timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of group.
The present invention sends the mapping relations of each timing group and up-link carrier to user terminal by system information, after interpolation and activation and main plot do not belong to the auxiliary residential quarter of same timing group, regularly organizing the accidental access response of being correlated with on the descending carrier of main plot or under the new auxiliary residential quarter of activating of the descending carrier of the auxiliary residential quarter of new activation transmission, user terminal obtains the regularly timing advance order of group from accidental access response, carry out the uplink synchronous of auxiliary residential quarter.Can realize the uplink synchronous of a plurality of timing groups by the present invention, avoid because of the up asynchronous problem of bringing the base station end data to receive and disturb.
Description of drawings
Fig. 1 is the flow chart of non-competing access in the prior art;
Fig. 2 is the flow chart of contention access in the prior art;
The main process figure of the initial access method under many timings group that Fig. 3 provides for the embodiment of the invention;
The timing group scene schematic diagram of Fig. 4 embodiment of the invention one and embodiment three;
The timing group scene schematic diagram of Fig. 5 embodiment of the invention two;
Fig. 6 is the structural representation of the accidental access response of use in the embodiment of the invention three;
A kind of user terminal that Fig. 7 provides for the embodiment of the invention;
A kind of base station that Fig. 8 provides for the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the main process figure of the initial access method under many regularly groups provided by the invention, and the method comprises the steps:
Step 301, send each regularly mapping relations of group and up-link carrier by system information to user terminal;
In described system information, comprise Physical Random Access Channel PRACH configuration information, and the mapping relations of described each timing group and up-link carrier;
Step 302, user terminal are realized the initial access of user terminal in the main plot.
Step 303, interpolation and activation and main plot do not belong to the auxiliary residential quarter of same timing group;
The embodiment of the invention connects reallocation message by radio resource control RRC and adds the auxiliary residential quarter that does not belong to same timing group with the main plot, user terminal connects the PRACH configuration information that obtains the auxiliary residential quarter of interpolation the reallocation message from RRC, and wherein the PRACH configuration information comprises special-purpose at random access configuration information or do not comprise;
The auxiliary residential quarter of new interpolation is activated in the base station by medium access key-course control unit (Media Access Control-Control Element, MAC CE);
After step 304, the auxiliary residential quarter of activation, user terminal is initiated at random access at the up-link carrier of auxiliary residential quarter, if do not bump, then the base station issues the relevant accidental access response of the affiliated regularly group in auxiliary residential quarter of new activation, user terminal carries out uplink synchronous in auxiliary residential quarter obtain the timing advance order of regularly organizing under the auxiliary residential quarter from accidental access response after.
The base station issues regularly group is relevant under the auxiliary residential quarter of new activation accidental access response and user terminal and obtains from described accidental access response under the auxiliary residential quarter regularly that the timing advance order of group has following three kinds of methods:
If method one newly activates the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, and therefrom obtains the regularly timing advance order of group under the auxiliary residential quarter.
If method two newly activates the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of auxiliary residential quarter sends the new auxiliary residential quarter of activating, the descending carrier of user terminal in the auxiliary residential quarter of new activation receives newly regularly organizes relevant accidental access response under the auxiliary residential quarter of activation, and therefrom obtains the timing advance order of the affiliated timing group in auxiliary residential quarter.
Method three, if newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized.
Embodiment one
Fig. 4 is in the LTE-A system, the scene of two carrier aggregation, wherein up-link carrier 1 and descending carrier 1 are the main plot carrier wave, up-link carrier 2 and descending carrier 2 are auxiliary cell carrier, up-link carrier 1 and up-link carrier 2 belong to respectively regularly organizes 1 and regularly organize 2, and up-link carrier 1 is connected with descending carrier for system information block 2 is the SIB2 connection, and it is that SIB2 connects that up-link carrier 2 is connected with descending carrier.Will be by obtain in the SIB2 message relevant parameter about up-link carrier 1 at descending carrier 1 among the present invention, such as bandwidth, frequency etc., being called up-link carrier 1 is connected with descending carrier and is that SIB2 connects, in like manner, by obtaining in the SIB2 message relevant parameter about up-link carrier 2 at descending carrier 2, up-link carrier 2 is connected with descending carrier and also is the SIB2 connection.
This embodiment is by the mode of implicit expression, and the timing advance order that makes the user terminal acquiescence know that present stage receives is to belong to the timing advance group of new activation, and concrete steps are as follows:
Step 1, user terminal carry out cell search process, and according to the standard of 3GPP Rel-10, select descending carrier 1 to carry out the reception of down-going synchronous and system information; User terminal needs correct detection system information, the Physical Random Access Channel PRACH configuration information that comprises in the system information, also comprise: all lower map informations of regularly organizing of this base station control, namely up-link carrier 1 belongs to regularly and organizes 1, and up-link carrier 2 belongs to timing and organizes 2;
Step 2, user terminal select the PRACH resource to send at up-link carrier 1 according to the PRACH configuration information of main plot at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission;
Step 3, user terminal are finished random access procedure according to the standard of 3GPP Rel-10, finish uplink synchronous with the base station at up-link carrier 1, and set up Radio Resource control (Radio Resource Control, RRC) and connect;
Step 4, base station connect the reprovision process by RRC, new interpolation up-link carrier 2 and descending carrier 2 are as pairing, wherein, the RRC that sends to user terminal in the base station connects in the reallocation message except the content that comprises the 3GPPRel-10 regulation, also comprise the PRACH configuration information of regularly organizing up-link carrier 2 in 2, wherein the PRACH configuration information comprises special-purpose at random access configuration information or does not comprise;
Step 5, according to demand, the base station is activated auxiliary residential quarter, i.e. up-link carrier 2 and descending carrier 2 according to the regulation of Rel-10 by medium access key-course control unit (Media Access Control-Control Element, MAC CE);
Step 6, user terminal select the PRACH resource to send at up-link carrier 2 according to the PRACH configuration information of auxiliary residential quarter at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission;
Receive after leading that user terminal sends up step 7, base station, do not conflict with other user terminals if find, then on descending carrier 1, send timing to this user terminal and organize 2 accidental access response, mainly comprise in the accidental access response and regularly organize 2 timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, the format and content of accidental access response is consistent with 3GPP Rel-10;
If the situation of conflict is found to have in the base station, then the competition solution according to 3GPP Rel-10 regulation solves.
After step 8, user terminal receive the accidental access response that sends on the descending carrier 1, the content of giving tacit consent to this accidental access response is that regularly group is relevant under the new auxiliary residential quarter of activating, user terminal carries out uplink synchronous obtain regularly to organize 2 timing advance order from accidental access response after.
Embodiment two:
Fig. 5 is in the LTE-A system, the scene of two carrier aggregation, wherein up-link carrier 1 and descending carrier 1 are the main plot carrier wave, up-link carrier 2 and descending carrier 2 are auxiliary cell carrier, up-link carrier 1 and up-link carrier 2 belong to respectively regularly organizes 1 and regularly organize 2, and up-link carrier 1 is connected with descending carrier for SIB2 connects, and up-link carrier 2 is connected with descending carrier for SIB2 connects, and concrete steps are as follows:
Step 1, user terminal carry out cell search process, and according to the standard of 3GPP Rel-10, select descending carrier 1 to carry out the reception of down-going synchronous and system information; Comprise the PRACH configuration information in the correct detection system information of user terminal, also comprise: all lower information of regularly organizing of this base station control, namely up-link carrier 1 belongs to regularly and organizes 1, and up-link carrier 2 belongs to timing and organizes 2;
Step 2, user terminal select the PRACH resource to send at up-link carrier 1 according to the PRACH configuration information of main plot at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission;
Step 3, user terminal are finished random access procedure according to the standard of 3GPP Rel-10, finish uplink synchronous with the base station at up-link carrier 1, and set up RRC and connect;
Step 4, base station connect the reprovision process by RRC, new up-link carrier 2 and the descending carrier 2 of adding, wherein RRC connects in the reallocation message except the content that comprises 3GPP Rel-10 regulation, also comprise the PRACH configuration information of regularly organizing the up-link carrier 2 in 2, wherein the PRACH configuration information comprises special-purpose at random access configuration information or does not comprise;
Step 5, according to demand, the base station is activated auxiliary residential quarter according to the regulation of 3GPP Rel-10 by MAC CE, i.e. up-link carrier 2 and descending carrier 2;
Step 6, user terminal select the PRACH resource to send at up-link carrier 2 according to the PRACH configuration information of auxiliary residential quarter at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission;
Receive after leading that user terminal sends up the base station, do not conflict with other user terminals if find, this moment, 2 accidental access response was then regularly organized to this user terminal transmission in the base station on descending carrier 2, and the format and content of accidental access response is consistent with 3GPP Rel-10;
Receive after leading that user terminal sends up step 7, base station, do not conflict with other user terminals if find, then on descending carrier 2, send timing to this user terminal and organize 2 accidental access response, wherein mainly comprise and regularly organize 2 timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, the format and content of accidental access response is consistent with 3GPP Rel-10;
If the situation of conflict is found to have in the base station, then the competition solution according to 3GPP Rel-10 regulation solves.
Step 9, user terminal are carried out uplink synchronous after obtaining regularly to organize 2 timing advance order.
Embodiment three:
Scene based on two carrier aggregation of LTE-A system of Fig. 4, wherein up-link carrier 1 and descending carrier 1 are the main plot carrier wave, up-link carrier 2 and descending carrier 2 are auxiliary cell carrier, up-link carrier 1 and up-link carrier 2 belong to respectively regularly organizes 1 and regularly organize 2, and it is the SIB2 connection that up-link carrier 1 is connected with descending carrier, and it is the SIB2 connection that up-link carrier 2 is connected with descending carrier.This embodiment clearly tells user terminal in explicit mode by MACCE, and which timing advance group this timing advance order is.Concrete steps are as follows:
Step 1, user terminal carry out cell search process, and according to the standard of 3GPP Rel-10, select descending carrier 1 to carry out the reception of down-going synchronous and system information; The PRACH configuration information that comprises in the correct detection system information of user terminal also comprises: all lower information of regularly organizing of this base station control, and namely up-link carrier 1 belongs to regularly and organizes 1, and up-link carrier 2 belongs to timing and organizes 2;
Step 2, user terminal select the PRACH resource to send at up-link carrier 1 according to the PRACH configuration information of main plot at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission;
Step 3, user terminal are finished random access procedure according to the standard of 3GPP Rel-10, finish uplink synchronous with the base station at up-link carrier 1, and set up RRC and connect;
Step 4, base station connect the reprovision process by RRC, new up-link carrier 2 and the descending carrier 2 of adding, wherein RRC connects in the reallocation message except the content that comprises 3GPP Rel-10 regulation, also comprise the PRACH configuration information of regularly organizing up-link carrier 2 in 2, wherein the PRACH configuration information comprises special-purpose at random access configuration information or does not comprise;
Step 5, according to demand, the base station is activated auxiliary residential quarter according to the regulation of 3GPP Rel-10 by MAC CE, i.e. up-link carrier 2 and descending carrier 2;
Step 6, user terminal select the PRACH resource to send at up-link carrier 2 according to the PRACH configuration information of auxiliary residential quarter at random, and wherein the PRACH resource comprises the time-frequency position of lead code and up transmission
Receive after leading that user terminal sends up step 7, base station, do not conflict with other user terminals if find, then on descending carrier 1, send timing to this user terminal and organize 2 accidental access response, be MAC RAR, its structure is seen Fig. 6, comprising reservation bit, the indication of auxiliary residential quarter, timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, unlike the prior art be, this embodiment has increased the indication of auxiliary residential quarter, is used for telling the timing advance order of user terminal MAC RAR is to belong to which auxiliary residential quarter;
If the situation of conflict is found to have in the base station, then the competition solution according to 3GPP Rel-10 regulation solves.
Step 9, user terminal detect medium access key-course accidental access response (MAC RAR), and by the auxiliary residential quarter indication in the accidental access response, knowing that timing advance order among the MAC RAR belongs to regularly organizes 2, and user terminal will carry out uplink synchronous with this timing advance order.
Embodiment four
A kind of user terminal that Fig. 7 provides for the present invention is based on above-mentioned Application Example, this user terminal 700 comprises:
Acquisition module 701, the system information that is used for issuing from the base station obtain the PRACH configuration information of main plot and each and regularly organize mapping relations with up-link carrier; Reach from RRC and connect the PRACH configuration information that obtains auxiliary residential quarter the reconfiguration message;
Main plot access module 702 is used for initially being linked into the main plot according to the system information of obtaining.
Further, described user terminal also comprises auxiliary cell synchronous module 703, be used for after initial access is realized in the main plot, carry out uplink synchronous in auxiliary residential quarter, based on previous embodiment, can by three kinds of modes realize user terminal auxiliary residential quarter synchronously, the respectively corresponding first auxiliary cell synchronous modules of these three kinds of modes, the second auxiliary cell synchronous module, the 3rd auxiliary cell synchronous module;
The first auxiliary cell synchronous module, at the new up-downgoing carrier wave that activates a pair of auxiliary residential quarter, and when up-link carrier wherein and main plot do not belong to same timing group, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter;
The second auxiliary cell synchronous module, be used for new when activating a pair of auxiliary residential quarter up-downgoing carrier wave and this up-link carrier and main plot and not belonging to same timing group, the accidental access response that the timing group is correlated with under the auxiliary residential quarter of the new activation of descending carrier reception of the auxiliary residential quarter of newly activating, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter;
The 3rd auxiliary cell synchronous module, be used for the up-downgoing carrier wave in a pair of auxiliary residential quarter of new activation, and when up-link carrier wherein and main plot do not belong to same timing, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized, carry out uplink synchronous in corresponding auxiliary residential quarter.
Embodiment five
A kind of base station that Fig. 8 provides for the present invention is based on above-mentioned Application Example, this base station 800 comprises:
Issue module 801, be used for to user terminal transmitting system information, the PRACH configuration information that comprises the main plot in the described system information reaches the mapping relations of respectively regularly organizing with up-link carrier;
Main plot access processing module 802, for the main plot access request of response user terminal, the completing user terminal is in the initial access of main plot.
Add active module 803, be used for adding and activating auxiliary residential quarter;
Accidental access response module 804 for the accidental access response that sends main plot and the new auxiliary residential quarter of activating, comprises the affiliated regularly timing advance order of group in auxiliary residential quarter in the accidental access response of the auxiliary residential quarter of described new activation.
Described accidental access response module 804 accidental access response that the timing group is correlated with under the new auxiliary residential quarter of activating of descending carrier transmission of main plot comprises in the described accidental access response: newly activate timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI regularly organized under the auxiliary residential quarter; Or comprise in the described accidental access response: the indication of auxiliary residential quarter, timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI; Or described accidental access response module sends the new regularly relevant accidental access response of group that activates under the auxiliary residential quarter at the descending carrier of the new auxiliary residential quarter of activating, and comprises in the described accidental access response: newly activate under the auxiliary residential quarter regularly timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of group.
Based on above-described embodiment four and embodiment five, the present invention also provides the initial connecting system under a kind of many regularly groups, and this system has comprised the base station that user terminal that embodiment four provides and embodiment five provide.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the initial access method under regularly organizing more than a kind is characterized in that the method comprises:
Send the mapping relations of each timing group and up-link carrier to user terminal by system information;
Realize the initial access of user terminal in the main plot.
2. method according to claim 1 is characterized in that, comprises Physical Random Access Channel PRACH configuration information in described system information, and the mapping relations of described each timing group and up-link carrier.
3. method according to claim 1 is characterized in that, after the initial access of main plot realization user terminal, described method also comprises:
Interpolation and activation and main plot do not belong to the auxiliary residential quarter of same timing group;
Issue the relevant accidental access response of the affiliated regularly group in auxiliary residential quarter of new activation, user terminal carries out uplink synchronous in auxiliary residential quarter obtain the timing advance order of regularly organizing under the auxiliary residential quarter from accidental access response after.
4. method according to claim 3 is characterized in that,
Connect reallocation message by radio resource control RRC and add the auxiliary residential quarter that does not belong to same timing group with the main plot, user terminal connects the PRACH configuration information that obtains the auxiliary residential quarter of interpolation the reallocation message from RRC, and wherein the PRACH configuration information comprises special-purpose at random access configuration information or do not comprise;
Auxiliary residential quarter is activated by medium access key-course control unit MAC CE in the base station.
5. method according to claim 3, it is characterized in that the accidental access response that the described affiliated regularly group in auxiliary residential quarter that issues new activation is correlated with and user terminal obtain the timing advance order of regularly organizing under the auxiliary residential quarter from described accidental access response method is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, and therefrom obtains the regularly timing advance order of group under the auxiliary residential quarter.
6. method according to claim 3, it is characterized in that the accidental access response that the described affiliated regularly group in auxiliary residential quarter that issues new activation is correlated with and user terminal obtain the timing advance order of regularly organizing under the auxiliary residential quarter from described accidental access response method is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of auxiliary residential quarter sends the new auxiliary residential quarter of activating, the descending carrier of user terminal in the auxiliary residential quarter of new activation receives newly regularly organizes relevant accidental access response under the auxiliary residential quarter of activation, and therefrom obtains the timing advance order of the affiliated timing group in auxiliary residential quarter.
7. method according to claim 3, it is characterized in that the accidental access response that the described affiliated regularly group in auxiliary residential quarter that issues new activation is correlated with and user terminal obtain the timing advance order of regularly organizing under the auxiliary residential quarter from described accidental access response method is:
If newly activate the up-downgoing carrier wave of a pair of auxiliary residential quarter, and up-link carrier wherein and main plot do not belong to same timing group, then relevant accidental access response is regularly organized in the base station under the descending carrier of main plot sends the new auxiliary residential quarter of activating, user terminal is regularly organized relevant accidental access response under the descending carrier of main plot receives the new auxiliary residential quarter of activating, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized.
8. a user terminal UE is characterized in that, this user terminal comprises:
Acquisition module, the system information that is used for issuing from the base station obtain the PRACH configuration information of main plot and each and regularly organize mapping relations with up-link carrier; Reach from RRC and connect the PRACH configuration information that obtains auxiliary residential quarter the reconfiguration message;
The main plot access module is used for initially being linked into the main plot according to the system information of obtaining.
9. user terminal according to claim 8 is characterized in that, this user terminal also comprises auxiliary cell synchronous module,
Described auxiliary cell synchronous module is used for the up-downgoing carrier wave in a pair of auxiliary residential quarter of new activation, and when up-link carrier wherein and main plot do not belong to same timing group, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter; Or
Be used for new when activating a pair of auxiliary residential quarter up-downgoing carrier wave and this up-link carrier and main plot and not belonging to same timing group, the accidental access response that the timing group is correlated with under the auxiliary residential quarter of the new activation of descending carrier reception of the auxiliary residential quarter of newly activating, and therefrom obtain the regularly timing advance order of group under the auxiliary residential quarter, then carry out uplink synchronous in this auxiliary residential quarter; Or
Be used for the up-downgoing carrier wave in a pair of auxiliary residential quarter of new activation, and when up-link carrier wherein and main plot do not belong to same timing, under receiving the new auxiliary residential quarter of activating, the descending carrier of main plot regularly organizes relevant accidental access response, by the auxiliary residential quarter indication in the described accidental access response, know which timing advance order in the described accidental access response belongs to and regularly organize, and therefrom obtain the timing advance order that this is regularly organized, carry out uplink synchronous in corresponding auxiliary residential quarter.
10. a base station is characterized in that, this base station comprises:
Issue module, be used for transmitting system information, the PRACH configuration information that comprises the main plot in the described system information reaches the mapping relations of respectively regularly organizing with up-link carrier;
Access processing module in main plot for the main plot access request of response user terminal, realizes that user terminal is in the initial access of main plot.
11. base station according to claim 10 is characterized in that, described base station also comprises:
Add active module, be used for adding and activating auxiliary residential quarter;
The accidental access response module for the accidental access response that sends main plot and the new auxiliary residential quarter of activating, comprises the affiliated regularly timing advance order of group in auxiliary residential quarter in the accidental access response of described auxiliary residential quarter.
12. base station according to claim 11 is characterized in that,
The described accidental access response module accidental access response that the timing group is correlated with under the new auxiliary residential quarter of activating of descending carrier transmission of main plot comprises in the described accidental access response: newly activate timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI regularly organized under the auxiliary residential quarter; Or comprise in the described accidental access response: the indication of auxiliary residential quarter, timing advance order, uplink authorization and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI; Or
Described accidental access response module sends the new regularly relevant accidental access response of group that activates under the auxiliary residential quarter at the descending carrier of the new auxiliary residential quarter of activating, and comprises in the described accidental access response: newly activate under the auxiliary residential quarter regularly timing advance order, uplink authorization and the interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of group.
13. the initial connecting system under regularly organizing more than a kind is characterized in that, comprises user terminal claimed in claim 8 and base station claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203972.7A CN102892192B (en) | 2011-07-20 | 2011-07-20 | Initial access method, apparatus and system under a kind of many timing groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110203972.7A CN102892192B (en) | 2011-07-20 | 2011-07-20 | Initial access method, apparatus and system under a kind of many timing groups |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102892192A true CN102892192A (en) | 2013-01-23 |
| CN102892192B CN102892192B (en) | 2017-08-01 |
Family
ID=47535503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110203972.7A Active CN102892192B (en) | 2011-07-20 | 2011-07-20 | Initial access method, apparatus and system under a kind of many timing groups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102892192B (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096075A1 (en) * | 2013-12-25 | 2015-07-02 | 华为技术有限公司 | Method and apparatus for indicating and determining to use frequency spectrum |
| CN105340339A (en) * | 2013-07-26 | 2016-02-17 | 英特尔Ip公司 | Signaling message synchronization |
| CN106160973A (en) * | 2015-04-07 | 2016-11-23 | 上海贝尔股份有限公司 | For controlling the method and device that the data of assisted cell are transmitted |
| CN106797651A (en) * | 2014-03-19 | 2017-05-31 | 夏普株式会社 | Terminal installation, base station apparatus, communication system, communication means and integrated circuit |
| CN106817776A (en) * | 2015-12-02 | 2017-06-09 | 展讯通信（上海）有限公司 | Base station and the accidental access method of user equipment |
| WO2018000337A1 (en) * | 2016-06-30 | 2018-01-04 | 北京小米移动软件有限公司 | System information transmission method and device |
| WO2018082548A1 (en) * | 2016-11-04 | 2018-05-11 | 维沃移动通信有限公司 | Data transmission method, terminal and network-side device |
| CN108112033A (en) * | 2016-11-25 | 2018-06-01 | 中兴通讯股份有限公司 | A kind of major-minor carrier switch method and device |
| WO2018170702A1 (en) * | 2017-03-20 | 2018-09-27 | Oppo广东移动通信有限公司 | System information transmission method, base station and terminal |
| WO2018170701A1 (en) * | 2017-03-20 | 2018-09-27 | Oppo广东移动通信有限公司 | System information transmission method, base station and terminal |
| CN108632986A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | A kind of synchronous method and device |
| WO2019149088A1 (en) * | 2018-01-31 | 2019-08-08 | 华为技术有限公司 | Random access method and device |
| CN110312294A (en) * | 2019-05-10 | 2019-10-08 | 展讯通信（上海）有限公司 | Secondary cell activation timing adjusting method, device and terminal |
| CN110572877A (en) * | 2017-11-17 | 2019-12-13 | 华为技术有限公司 | Method and device for sending and receiving information |
| CN111294874A (en) * | 2019-02-19 | 2020-06-16 | 北京展讯高科通信技术有限公司 | Switching method and device, storage medium and user terminal |
| CN113615252A (en) * | 2019-03-28 | 2021-11-05 | 夏普株式会社 | Terminal device, method and integrated circuit |
| CN116546614A (en) * | 2023-07-07 | 2023-08-04 | 翱捷科技股份有限公司 | Timing synchronization method and device for secondary cells under carrier aggregation |
| WO2023155058A1 (en) * | 2022-02-16 | 2023-08-24 | Qualcomm Incorporated | Cell and timing advance group indications for random access procedures |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148404A1 (en) * | 2009-06-19 | 2010-12-23 | Qualcomm Incorporated | Method and apparatus that facilitates a timing alignment in a multicarrier system |
| CN102014477A (en) * | 2009-10-30 | 2011-04-13 | 大唐移动通信设备有限公司 | Method, apparatus and system for uplink synchronization |
| CN102123516A (en) * | 2011-03-31 | 2011-07-13 | 电信科学技术研究院 | Random access method and equipment based on multiple uplink timing advances |
-
2011
- 2011-07-20 CN CN201110203972.7A patent/CN102892192B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148404A1 (en) * | 2009-06-19 | 2010-12-23 | Qualcomm Incorporated | Method and apparatus that facilitates a timing alignment in a multicarrier system |
| CN102014477A (en) * | 2009-10-30 | 2011-04-13 | 大唐移动通信设备有限公司 | Method, apparatus and system for uplink synchronization |
| WO2011050743A1 (en) * | 2009-10-30 | 2011-05-05 | 大唐移动通信设备有限公司 | Method, apparatus and system for uplink synchronization |
| CN102123516A (en) * | 2011-03-31 | 2011-07-13 | 电信科学技术研究院 | Random access method and equipment based on multiple uplink timing advances |
Cited By (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105340339A (en) * | 2013-07-26 | 2016-02-17 | 英特尔Ip公司 | Signaling message synchronization |
| CN105340339B (en) * | 2013-07-26 | 2019-06-11 | 英特尔Ip公司 | Signaling message is synchronous |
| WO2015096075A1 (en) * | 2013-12-25 | 2015-07-02 | 华为技术有限公司 | Method and apparatus for indicating and determining to use frequency spectrum |
| CN104885540A (en) * | 2013-12-25 | 2015-09-02 | 华为技术有限公司 | Method and apparatus for indicating and determining to use frequency spectrum |
| JP2017505041A (en) * | 2013-12-25 | 2017-02-09 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Method and apparatus for indicating and determining spectrum use |
| CN106797651A (en) * | 2014-03-19 | 2017-05-31 | 夏普株式会社 | Terminal installation, base station apparatus, communication system, communication means and integrated circuit |
| CN106160973A (en) * | 2015-04-07 | 2016-11-23 | 上海贝尔股份有限公司 | For controlling the method and device that the data of assisted cell are transmitted |
| CN106160973B (en) * | 2015-04-07 | 2019-04-19 | 上海诺基亚贝尔股份有限公司 | The method and device that data for controlling supplementary cell are transmitted |
| CN106817776A (en) * | 2015-12-02 | 2017-06-09 | 展讯通信（上海）有限公司 | Base station and the accidental access method of user equipment |
| CN106817776B (en) * | 2015-12-02 | 2020-04-07 | 展讯通信（上海）有限公司 | Random access method for base station and user equipment |
| RU2716741C1 (en) * | 2016-06-30 | 2020-03-16 | Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. | Method and apparatus for transmitting system information |
| US11197318B2 (en) | 2016-06-30 | 2021-12-07 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for transmitting system information |
| WO2018000337A1 (en) * | 2016-06-30 | 2018-01-04 | 北京小米移动软件有限公司 | System information transmission method and device |
| WO2018082548A1 (en) * | 2016-11-04 | 2018-05-11 | 维沃移动通信有限公司 | Data transmission method, terminal and network-side device |
| US11546932B2 (en) | 2016-11-04 | 2023-01-03 | Vivo Mobile Communication Co., Ltd. | Data transmission method, terminal and network side device |
| US11013026B2 (en) | 2016-11-04 | 2021-05-18 | Vivo Mobile Communication Co., Ltd. | Data transmission method, terminal and network-side device |
| CN108112033B (en) * | 2016-11-25 | 2022-07-08 | 中兴通讯股份有限公司 | Method and device for switching primary carrier and secondary carrier |
| CN108112033A (en) * | 2016-11-25 | 2018-06-01 | 中兴通讯股份有限公司 | A kind of major-minor carrier switch method and device |
| WO2018170702A1 (en) * | 2017-03-20 | 2018-09-27 | Oppo广东移动通信有限公司 | System information transmission method, base station and terminal |
| WO2018170701A1 (en) * | 2017-03-20 | 2018-09-27 | Oppo广东移动通信有限公司 | System information transmission method, base station and terminal |
| CN110447273A (en) * | 2017-03-20 | 2019-11-12 | Oppo广东移动通信有限公司 | A kind of method, base station and the terminal of Transmission system information |
| CN110447275A (en) * | 2017-03-20 | 2019-11-12 | Oppo广东移动通信有限公司 | A kind of method, base station and the terminal of Transmission system information |
| US11219059B2 (en) | 2017-03-20 | 2022-01-04 | Shenzhen Heytap Technology Corp., Ltd. | Method for transmitting system information on demand, base station and terminal |
| US11071148B2 (en) | 2017-03-20 | 2021-07-20 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | System information transmission method, base station and terminal |
| CN110447275B (en) * | 2017-03-20 | 2020-10-30 | Oppo广东移动通信有限公司 | Method, base station and terminal for transmitting system information |
| CN110447273B (en) * | 2017-03-20 | 2021-01-12 | Oppo广东移动通信有限公司 | Method, base station and terminal for transmitting system information |
| CN108632986B (en) * | 2017-03-24 | 2020-08-14 | 华为技术有限公司 | Synchronization method and device |
| US11063806B2 (en) | 2017-03-24 | 2021-07-13 | Huawei Technologies Co., Ltd. | Synchronization method and apparatus |
| CN108632986A (en) * | 2017-03-24 | 2018-10-09 | 华为技术有限公司 | A kind of synchronous method and device |
| US11546870B2 (en) | 2017-11-17 | 2023-01-03 | Huawei Technologies Co., Ltd. | Method and apparatus for transmitting or receiving information |
| CN110572877A (en) * | 2017-11-17 | 2019-12-13 | 华为技术有限公司 | Method and device for sending and receiving information |
| US11425758B2 (en) | 2018-01-31 | 2022-08-23 | Huawei Technologies Co., Ltd. | Random access method and apparatus |
| WO2019149088A1 (en) * | 2018-01-31 | 2019-08-08 | 华为技术有限公司 | Random access method and device |
| CN111294874A (en) * | 2019-02-19 | 2020-06-16 | 北京展讯高科通信技术有限公司 | Switching method and device, storage medium and user terminal |
| CN113615252B (en) * | 2019-03-28 | 2023-07-07 | 夏普株式会社 | Terminal device, method and integrated circuit |
| CN113615252A (en) * | 2019-03-28 | 2021-11-05 | 夏普株式会社 | Terminal device, method and integrated circuit |
| CN113115410A (en) * | 2019-05-10 | 2021-07-13 | 展讯通信（上海）有限公司 | Timing adjustment method, device and terminal for secondary cell activation process |
| CN113115410B (en) * | 2019-05-10 | 2022-11-25 | 展讯通信（上海）有限公司 | Timing adjustment method, device and terminal for secondary cell activation process |
| CN110312294A (en) * | 2019-05-10 | 2019-10-08 | 展讯通信（上海）有限公司 | Secondary cell activation timing adjusting method, device and terminal |
| CN110312294B (en) * | 2019-05-10 | 2021-07-23 | 展讯通信（上海）有限公司 | Timing adjustment method, device and terminal for secondary cell activation process |
| WO2023155058A1 (en) * | 2022-02-16 | 2023-08-24 | Qualcomm Incorporated | Cell and timing advance group indications for random access procedures |
| CN116546614A (en) * | 2023-07-07 | 2023-08-04 | 翱捷科技股份有限公司 | Timing synchronization method and device for secondary cells under carrier aggregation |
| CN116546614B (en) * | 2023-07-07 | 2023-12-01 | 翱捷科技股份有限公司 | Timing synchronization method and device for secondary cells under carrier aggregation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102892192B (en) | 2017-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102892192A (en) | Initial access method, device and system under multi-timing groups | |
| CN111466150B (en) | Method and apparatus for processing bandwidth part inactivity timer in wireless communication system | |
| KR102429435B1 (en) | Methods and apparatuses for determining and configuring a time-frequency resource in a random access process | |
| CN102244927B (en) | Method, equipment and terminal for establishing uplink synchronization in multi-cell long-term evolution system | |
| CN102118801B (en) | Method and device for unlink transmission in multicarrier aggregation system | |
| CN107690173B (en) | Random access method and equipment | |
| EP4373014A2 (en) | Method and apparatus for random access procedure | |
| CN102014476B (en) | Uplink synchronization method, system and equipment | |
| EP4054271A1 (en) | Method and apparatus for enhanced contention based random access procedure | |
| US9642161B2 (en) | Cross-scheduling for random access response | |
| CN102123516B (en) | Random access method and equipment based on multiple uplink timing advances | |
| CN113728717B (en) | Method and apparatus for switching and contention resolution between 2-step and 4-step RA procedures | |
| CN102014477B (en) | Method, apparatus and system for uplink synchronization | |
| JPWO2019064768A1 (en) | Terminal equipment, base station equipment, methods and recording media | |
| CN103220813B (en) | The accidental access method and system and terminal and base station equipment of a kind of multicarrier system | |
| CN115134018A (en) | Method and equipment for transmitting message | |
| CN102548015A (en) | Random access and random access control methods and devices, and random access system | |
| JP2020535695A (en) | User equipment and base stations involved in prioritized random access | |
| CN103228053A (en) | Random access method of multi-carrier system, base station, as well as mobile terminal and random access system | |
| US20220322156A1 (en) | Method for transmitting/receiving downlink information in wireless communication system supporting internet of things, and device therefor | |
| WO2013024423A1 (en) | Cross-scheduled random access order transmitting and receiving methods, devices and systems | |
| CN113439477A (en) | Downlink signal transmitting/receiving method and device for multi-transmission block scheduling | |
| US20220272513A1 (en) | Method for transmitting or receiving emergency information in wireless communication system supporting machine type communication and device therefor | |
| US11540333B2 (en) | Method for transmitting and receiving downlink information in wireless communication system supporting internet of things, and device for same | |
| CN113273248A (en) | Method and apparatus for handling handover between 2-step and 4-step random access |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |