CN101340230B - Stochastic access method of TD-SCDMA uplink enhancing system - Google Patents
Stochastic access method of TD-SCDMA uplink enhancing system Download PDFInfo
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- CN101340230B CN101340230B CN 200710128404 CN200710128404A CN101340230B CN 101340230 B CN101340230 B CN 101340230B CN 200710128404 CN200710128404 CN 200710128404 CN 200710128404 A CN200710128404 A CN 200710128404A CN 101340230 B CN101340230 B CN 101340230B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
Abstract
The invention discloses a random access method for a time division synchronous code division multiple access uplink enhancement system, which includes the following steps: unlink pilot frequency time-slot resource is enabled on auxiliary carriers of the time division synchronous code division multiple access uplink enhancement system, and main carriers and the auxiliary carriers of the time division synchronous code division multiple access uplink enhancement system are respectively provided with physical channel resources of a fast physical access channel, a physical random access channel and an uplink enhancement random access control channel; an uplink synchronous code set is allocated for the main carriers and the auxiliary carriers to instruct normal random access and uplink enhancement random access; a user device carries out the normal random access and/or the uplink enhancement random access in a transmission time interval.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of accidental access method of TD-SCDMA uplink enhancing system.
Background technology
In order to satisfy the growing demand of user to the high-speed upward grouped data business; Also in order to insert (High Speed Downlink PacketAccess with high speed downlink packet better; Abbreviation HSDPA) technology matches provides the support to higher quality of service; 3GPP has introduced in Rel6 and Rel7 respectively based on WCDMA (Wideband CodeDivision Multiple Access; Be called for short WCDMA) and TD SDMA (TimeDivision Synchronization Code Division Multiple Access; Abbreviation TD-SCDMA) high speed uplink packet inserts (High Speed Uplink PacketAccess; Be called for short HSUPA) technology, the dedicated channel that perhaps is called up enhancing (Enhanced Uplink) or strengthens (Enhanced Dedicated Channel is called for short E-DCH) technology.HSUPA adopts mixed automatic repeat requests (Hybrid Automatic RepeatreQuest; Be called for short HARQ), high order modulation (16QAM), Node B (Node B) fast dispatch and based on the technology such as reverse RoT control of T/P; Higher user's peak rate and cell data throughput can be obtained, and stable reverse RoT control can be reached.
The HSUPA business is divided into scheduled transmission and non-scheduled transmission business by the difference of scheduling mode; Wherein, The enhanced uplink physical channel resources of non-scheduled transmission is by service wireless network controller (Serving Radio Network Controller; Abbreviation SRNC) adopting the mode of static configuration is that subscriber equipment (User Equipment is called for short UE) distributes, and the method for salary distribution is identical with existing DPCH resource distribution mode; For scheduled transmission; SRNC at first distributes enhanced uplink physical channel resources pond and sends to NodeB; Adopting the mode of dynamic dispatching by Node B then is that UE distributes the enhanced uplink physical channel resources; The high-speed physical downlink shared channel (HS-PDSCH) that the method for salary distribution is relevant with existing HSDPA (High SpeedPhysical Downlink Shared Channel is called for short HS-PDSCH) the physical channel resources method of salary distribution is identical.
Aspect the physical layer carrying, HSUPA has introduced uplink enhanced physical channel (EnhancePhysical Uplink Channel is called for short E-PUCH) and has carried corresponding transmission channel.Simultaneously; In order to accomplish control corresponding, scheduling and feedback; HSUPA has introduced enhanced uplink random access channel (Enhanced Random access Uplink ControlChannel in physical layer; Abbreviation E-RUCHH), strengthen absolute grant channel (Enhanced AbsoluteGrant Channel; Be called for short E-AGCH) and strengthen three kinds of physical control channels of mixed automatic repeat requests affirmation indicating channel (Enhanced HARQ Acknowledgement Indicator Channel is called for short E-HICH).Wherein, E-RUCCH and E-AGCH physical channel only are used for the scheduled transmission mode.
Enhanced uplink random access channel (E-RUCCH; E-DCH inserts ascending control channel at random; Be that enhanced uplink random inserts ascending control channel) be physical layer control channel, be used for not having under the situation of authorization resources auxiliary dispatching information (the Schedule Information that transmission is relevant at UE; Be called for short SI), request is authorized to carry out the E-DCH transfer of data.With Physical Random Access Channel (Physical Random Access Channel; Be called for short PRACH) identical, the distribution of E-RUCCH physical channel and occupation mode are the common signal channel preempt-mode, in random access procedure, carry out; Therefore, E-RUCCH and PRACH share the physical code channel resource.In order to share physical code channel with PRACH; Simultaneously can in random access procedure, distinguish PRACH physical channel and E-RUCCH physical channel again; Two parts that the uplink synchronous code of launching in the uplink synchronous process in the random access procedure (8 SYNC_UL sign indicating numbers) is divided into; A part is used to indicate PRACH to insert (being expressed as the uplink synchronous code set A) at random, and another part is used to indicate E-RUCCH to insert (being expressed as the uplink synchronous code set B) at random, and set A and B are broadcast to UE through cell system information; Through sending to Node B in Node B applying portion (Node B Application Part the is called for short NBAP) message.If UE need carry out the emission of PRACH physical channel (promptly; PRACH inserts at random); Then in the uplink synchronous process in random access procedure; Select a uplink synchronous code in the set A to carry out the uplink synchronous process, like this, Node B just knows that subsequently sharing what launch on the code channel be the PRACH physical channel; Carry out E-RUCCH physical channel emission (that is, E-RUCCH inserts at random) if desired, then select a uplink synchronous code in the set B to carry out the uplink synchronous process.
In the present multi-carrier TD-SCDMA system of China's Telecommunication's standardization agreement (CCSA), a multi-carrier district comprises a plurality of carrier waves.A carrier wave in a plurality of carrier waves is a main carrier, and other carrier wave is auxilliary carrier wave, only on main carrier, sets up and use all or part of common signal channel.Wherein, only configuration and use on main carrier of common signal channel PRACH.If in multi-carrier TD-SCDMA system, introduce up enhancement techniques, then except on main carrier, carrying out the E-DCH transmission, also on auxilliary carrier wave, carry out the E-DCH transmission usually, even on main carrier and auxilliary carrier wave, carry out the E-DCH transmission simultaneously.In order to make under multicarrier E-DCH transmission situation; UE can send relevant auxiliary dispatching information when no authorization resources; Request is authorized and is carried out the E-DCH transfer of data, need in multicarrier system, introduce corresponding E-RUCCH physical channel configuration and method for using thereof.Because E-RUCCH is relevant with PRACH physical channel and random access procedure, therefore, relates to the configuration and the method for using of whole random access procedure and random access resource.
Summary of the invention
One or more problems in view of the above the invention provides a kind of accidental access method of TD-SCDMA uplink enhancing system.
Accidental access method according to TD-SCDMA uplink enhancing system of the present invention; Comprise: on the auxilliary carrier wave of TD-SCDMA uplink enhancing system, launch the uplink pilot time slot resource, and on the main carrier of TD-SCDMA uplink enhancing system and auxilliary carrier wave, dispose the physical channel resources of physical access channel, Physical Random Access Channel and up enhanced random access control channel respectively; For being used to indicate the common uplink synchronous code that inserts with up enhanced random that inserts at random, the configuration of main carrier and auxilliary carrier wave gathers; And subscriber equipment carries out common the access at random and/or the access of up enhanced random in a Transmission Time Interval.
Wherein, subscriber equipment carries out common the access at random or the access of up enhanced random on main carrier and/or auxilliary carrier wave.Physical Random Access Channel and up enhanced random access control channel physical channel are shared the physical code channel resource on the same carrier wave.The uplink pilot time slot resource of launching auxilliary carrier wave is meant the uplink pilot time slot emission uplink synchronous code on auxilliary carrier wave.
Wherein, main carrier and auxilliary carrier wave can dispose the uplink synchronous code set respectively.Also can give main carrier, share by main carrier and auxilliary carrier wave with the uplink synchronous code set configuration.Wherein, through the system information broadcast mode, information and uplink synchronous code set about the physical channel resources on the main carrier are sent to subscriber equipment.Through radio bearer foundation/reconfiguration course or system information broadcast mode, information and uplink synchronous code set about the physical channel resources on the auxilliary carrier wave are sent to subscriber equipment.
Wherein, in a Transmission Time Interval, subscriber equipment can only carry out common the access at random or the access of up enhanced random on main carrier and/or auxilliary carrier wave; Subscriber equipment can carry out on other carrier waves, carrying out up increasing at random and inserting in common access at random or the access of up enhanced random on main carrier or auxilliary carrier wave; Subscriber equipment also can carry out common insert at random or up increasing at random inserted on main carrier or auxilliary carrier wave.
Wherein, the common access at random is meant the access at random of sending data with the Physical Random Access Channel mode; Up enhanced random inserts and is meant the access at random of sending data with up enhanced random access control channel.
The present invention can compatible 3GPP single carrier TD-SCDMA ascending reinforcement system and the multi-carrier TD-SCDMA system of CCSA; And random access resource and corresponding configuration method for using in multi-carrier TD-SCDMA system, have been expanded; Make that UE can carry out PRACH on a plurality of carrier waves and E-RUCCH inserts at random; Send RACH and schedule information, introduce up enhancement techniques in the multi-carrier TD-SCDMA system thereby be supported in.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the accidental access method of the TD-SCDMA uplink enhancing system of the embodiment of the invention; And
Fig. 2 is the illustraton of model according to the accidental access method of the TD-SCDMA uplink enhancing system of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, specify embodiment of the present invention.
With reference to figure 1, the accidental access method according to the TD-SCDMA system of the embodiment of the invention is described.As shown in Figure 1, this accidental access method may further comprise the steps (following step is not represented strict time order and function order):
S102 at network side, disposes FPACH, PRACH and E-RUCCH physical channel resources respectively, and the resource information about PRACH and E-RUCCH is sent to subscriber equipment on the main carrier of TD-SCDMA system and auxilliary carrier wave.Wherein, PRACH on each carrier wave and E-RUCCH physical channel can be shared the physical code channel resource.
S104 for the configuration of main carrier and auxilliary carrier wave is used to the uplink synchronous code set of indicating Physical Random Access Channel and enhanced uplink random access channel to insert at random, and gathers uplink synchronous code and sends to subscriber equipment.The uplink synchronous code set that wherein, can be used to indicate PRACH to insert at random and insert at random for each carrier wave separate configurations with E-RUCCH; The uplink synchronous code set that also can indicate PRACH to insert at random to insert at random with E-RUCCH for shared being used to of all carrier waves configuration was given main carrier and should share set configuration.
For example, as shown in Figure 2, a multi-carrier district in the multi-carrier TD-SCDMA system comprises 3 carrier waves: main carrier, auxilliary carrier wave 1 and auxilliary carrier wave 2.Wherein, the uplink pilot time slot (UpPTS) on the auxilliary carrier wave is launched, and promptly UE can be at the UpPTS of auxilliary carrier wave emission uplink synchronous code (SYNC_UL sign indicating number).And on all carrier waves, all disposed PRACH and inserted at random with E-RUCCH and insert relevant resource at random.UE can carry out on main carrier and/or auxilliary carrier wave 1 and/or auxilliary carrier wave 2 that PRACH inserts at random and E-RUCCH inserts at random.Wherein, on three carrier waves (main carrier and auxilliary carrier wave) of 3 carrier cells, all dispose FPACH physical channel and PRACH/E-RUCCH physical channel resources, and PRACH and the shared physical code channel resource of E-RUCCH physical channel.The uplink synchronous code set that being used on three carrier waves indicates PRACH to insert at random and insert at random with E-RUCCH is identical, and wherein, 4 are used for PRACH and insert at random, and other 4 are used for E-RUCCH and insert at random.
At network side; By existing network configuration (promptly; Wireless network is by radio network controller (Radio Network Controller; Be called for short RNC) and two network elements compositions of Node B, RNC links to each other through Iub interface with Node B), above-mentioned resource distribution process can be realized to Physical Shared Channel (Physical Shared Channel Reconfiguration) process of reshuffling that Node B initiates in the NBAP agreement through Iub interface by RNC.In " Physical Shared Channel reconfiguration request (PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST) " message; Comprise above-mentioned resource allocation information; And increase the carrier wave indication information, to realize that each carrier wave is carried out above-mentioned resource distribution respectively.
For the above-mentioned resource distribution on the main carrier, the method in the single carrier TD-SCDMA ascending reinforcement system in its collocation method and the existing 3GPP standard is identical.For the above-mentioned resource distribution on the auxilliary carrier wave, also can be with reference to the collocation method on the main carrier.
If the wireless network of network side has only network element of Node B, then above-mentioned layoutprocedure can realize by cooperatively interacting between the inner correlation function module of Node B.
Wherein, for the above-mentioned resource distribution on the main carrier, the method in the single carrier TD-SCDMA ascending reinforcement system in its collocation method and the existing 3GPP standard is identical, promptly sends to UE through the system information broadcast mode.
For the above-mentioned resource distribution on the auxilliary carrier wave, E-RUCCH inserts relevant resource allocation information at random and can set up at radio bearer/send to UE in the reconfiguration course; Also can send to UE through the system information broadcast mode.
Insert the mode of related resource at random for the E-RUCCH on the auxilliary carrier wave of configuration in radio bearer foundation/reconfiguration course; Press existing network infrastructure; This radio bearer foundation/reconfiguration course connects the process (RRC connection establishment) of setting up, radio bearer by RNC through the RRC of Uu interface (interface between network side and UE) in Radio Resource control (Radio Resource Control is called for short RRC) agreement that UE initiates and sets up process (radio bearer establishment), radio bearer reconfiguration course (radio bearerreconfiguration), radio bearer dispose procedure (the radio bearer release), transmission channel reconfiguration course (transport channel reconfiguration), physical channel reconfiguration course (physical channel reconfiguration), cell updating course processes such as (cell update) and realize.
Wherein, In corresponding " RRC connects foundation (RRC CONNECTIONSETUP) ", " radio bearer is set up (RADIO BEARER SETUP) ", " radio bearer is reshuffled (RADIO BEARER RECONFIGURATION) ", " radio bearer discharges (RADIO BEARER RELEASE) ", " transmission channel is reshuffled (TRANSPORTCHANNEL RECONFIGURATION) ", " physical channel is reshuffled (PHYSICAL CHANNEL RECONFIGURATION) ", " cabin upgrades and confirms (CELL UPDATE CONFIRM) " message, comprise above-mentioned resource allocation information; And increase the carrier wave indication information, to realize that each carrier wave is carried out above-mentioned resource distribution respectively.Wherein, if the wireless network of network side has only network element of Node B, then give UE through sending the relevant resource allocation information of E-DCH transmission with similar process of said process and message by Node B.
S106; At certain Transmission Time Interval (Transmission Time Interval; Be called for short TTI) in; UE confirms to carry out that PRACH inserts at random and/or E-RUCCH inserts at random, and selects one or more carrier wave to initiate PRACH according to the resource distribution situation and insert at random and/or the E-RUCCH random access procedure.
If be assigned the HSUPA related resource, and what initiate is that E-RUCCH inserts at random, and then UE can carry out E-RUCCH and inserts at random on the one or more carrier waves in main carrier, auxilliary carrier wave 1 and the auxilliary carrier wave 2, to send SI information to Node B.Like the UE2 among Fig. 2, UE3, UE4 carry out E-RUCCH respectively and insert at random on main carrier, auxilliary carrier wave 1 and auxilliary carrier wave 2.
At certain TTI, on same carrier wave, UE can only carry out PRACH and insert perhaps E-RUCCH random access procedure at random, can not carry out PRACH simultaneously and insert the random access procedure with E-RUCCH at random.But, on different carrier, UE can on a carrier wave, carry out PRACH insert at random or the E-RUCCH random access procedure in, on another one or a plurality of carrier wave, carry out the E-RUCCH random access procedure; UE also can only be chosen in and carry out PRACH random access procedure or E-RUCCH random access procedure on the carrier wave.
When UE carries out on certain carrier wave that PRACH inserts at random or E-RUCCH when inserting at random, need in corresponding set, select a uplink synchronous code to carry out the uplink synchronous process according to the uplink synchronous code set that different random inserts that is used for of this carrier wave configuration.
As shown in Figure 2, UE1 and UE4 carry out PRACH respectively and insert at random on main carrier and auxilliary carrier wave 2, and UE2 and UE3 carry out E-RUCCH respectively and insert at random on main carrier and auxilliary carrier wave 1.
After UE initiated to insert at random, Node B confirmed on each carrier wave according to uplink synchronous code and receives PRACH physical channel or E-RUCCH physical channel, and the data that receive from PRACH and E-RUCCH physical channel are handled respectively.
Owing to not only can carry out that PRACH inserts at random on each carrier wave but also can carry out E-RUCCH and insert at random; And disposed different uplink synchronous codes respectively and gathered; Therefore; To each carrier wave, Node B needs to confirm PRACH physical channel or E-RUCCH physical channel according to the uplink synchronous code that in the uplink synchronous process, receives.Since uplink synchronous code transmit and receive the corresponding relation that transmitted and received with subsequently PRACH physical channel or E-RUCCH physical channel; Therefore; Though the PRACH physical channel is shared identical physical code channel resource with the E-RUCCH physical channel, Node B can distinguish and receive PRACH physical channel or E-RUCCH physical channel.
In Node B,, send to the related entities of the MAC-e sublayer relevant among the Node B with the E-DCH transmission for the data that receive from the E-RUCCH physical channel.For the data that receive from the PRACH physical channel, if wireless network comprises RNC and two entities of Node B, then the form with RACH transport channel data bag sends to RNC; If have only entity of Node B, then sending to the inner related functional entities of Node B.
In sum, the present invention can solve under multicarrier E-DCH transmission situation, and UE sends relevant auxiliary dispatching schedule information when no authorization resources, and the problem of carrying out the E-DCH transfer of data is authorized in request.In addition; The present invention can compatible 3GPP single carrier TD-SCDMA ascending reinforcement system and the multi-carrier TD-SCDMA system of CCSA; And in multi-carrier TD-SCDMA system, expanded random access resource and disposed method for using accordingly; Make that UE can carry out PRACH on a plurality of carrier waves and E-RUCCH inserts at random, send RACH and schedule information, introduce up enhancement techniques in the multi-carrier TD-SCDMA system thereby be supported in.
The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 the claim scope of the present invention.
Claims (12)
1. the accidental access method of a TD-SCDMA uplink enhancing system is characterized in that, comprising:
On the auxilliary carrier wave of TD-SCDMA uplink enhancing system, launch the uplink pilot time slot resource, and on the main carrier of said TD-SCDMA uplink enhancing system and said auxilliary carrier wave, dispose the physical channel resources of physical access channel, Physical Random Access Channel and up enhanced random access control channel respectively;
For said main carrier and the configuration of said auxilliary carrier wave are used to indicate the common uplink synchronous code that inserts with up enhanced random that inserts at random to gather; And
Subscriber equipment carries out common the access at random and/or the access of up enhanced random in a Transmission Time Interval.
2. accidental access method according to claim 1 is characterized in that, said subscriber equipment carries out common the access at random or the access of up enhanced random on said main carrier and/or said auxilliary carrier wave.
3. accidental access method according to claim 1 is characterized in that, on said main carrier and said each auxilliary carrier wave, said Physical Random Access Channel and said up enhanced random access control channel physical channel are shared the physical code channel resource.
4. accidental access method according to claim 1 is characterized in that, the uplink pilot time slot resource of launching said auxilliary carrier wave is meant the said uplink pilot time slot emission uplink synchronous code on said auxilliary carrier wave.
5. accidental access method according to claim 1 is characterized in that, said main carrier and said auxilliary carrier wave dispose said uplink synchronous code set respectively.
6. accidental access method according to claim 1 is characterized in that, said uplink synchronous code set configuration is given said main carrier, is shared by said main carrier and said auxilliary carrier wave.
7. accidental access method according to claim 1 is characterized in that, through the system information broadcast mode, information and the set of said uplink synchronous code about the physical channel resources on the said main carrier is sent to said subscriber equipment.
8. accidental access method according to claim 1; It is characterized in that; Through radio bearer foundation/reconfiguration course or system information broadcast mode, information and the set of said uplink synchronous code about the physical channel resources on the said auxilliary carrier wave are sent to said subscriber equipment.
9. accidental access method according to claim 1 is characterized in that, in a Transmission Time Interval, said subscriber equipment can only carry out said common the access at random or said up enhanced random access on said main carrier and/or said auxilliary carrier wave.
10. accidental access method according to claim 1; It is characterized in that; In a Transmission Time Interval; Said subscriber equipment carries out on other carrier waves, carrying out said up enhanced random and inserting in said common access at random or the said up enhanced random access on said main carrier or said auxilliary carrier wave.
11. accidental access method according to claim 1 is characterized in that, at a Transmission Time Interval, said subscriber equipment carries out said common the access at random or said up enhanced random access on said main carrier or a said auxilliary carrier wave.
12. accidental access method according to claim 1 is characterized in that, said common the access at random is meant the access at random of sending data with the Physical Random Access Channel mode; Said up enhanced random inserts and is meant the access at random of sending data with up enhanced random access control channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710128404 CN101340230B (en) | 2007-07-05 | 2007-07-05 | Stochastic access method of TD-SCDMA uplink enhancing system |
| PCT/CN2008/071502 WO2009006822A1 (en) | 2007-07-05 | 2008-07-01 | A random access method of time division synchronization code division multiple access enhanced uplink system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200710128404 CN101340230B (en) | 2007-07-05 | 2007-07-05 | Stochastic access method of TD-SCDMA uplink enhancing system |
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| CN101340230A CN101340230A (en) | 2009-01-07 |
| CN101340230B true CN101340230B (en) | 2012-12-19 |
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| CN 200710128404 Expired - Fee Related CN101340230B (en) | 2007-07-05 | 2007-07-05 | Stochastic access method of TD-SCDMA uplink enhancing system |
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| WO (1) | WO2009006822A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8989107B2 (en) | 2009-04-30 | 2015-03-24 | Qualcomm Incorporated | Activation deactivation of secondary UL carrier in DC HSUPA |
| CN101925130A (en) * | 2009-06-16 | 2010-12-22 | 中兴通讯股份有限公司 | Transmission method of multi-carrier wave configuration information and secondary carrier wave allocation method |
| CN101925089A (en) * | 2009-06-16 | 2010-12-22 | 大唐移动通信设备有限公司 | Multi-carrier parameter configuration method, system and device |
| CN101925143A (en) * | 2009-06-17 | 2010-12-22 | 大唐移动通信设备有限公司 | Multi-carrier switching method, system and device |
| CN101925159B (en) * | 2009-06-17 | 2014-08-27 | 大唐移动通信设备有限公司 | Mobile communication method and device |
| WO2011097803A1 (en) * | 2010-02-11 | 2011-08-18 | 上海贝尔股份有限公司 | Method and apparatus for detecting random access failure in communication system based on carrier aggregation |
| CN104601314B (en) * | 2010-04-30 | 2019-12-17 | 索尼公司 | method for selecting component carrier, base station, terminal and communication system |
| CN102271415B (en) * | 2010-06-01 | 2016-06-15 | 中兴通讯股份有限公司 | The processing method of random access procedure and carrier operation conflict in process and system |
| WO2017000269A1 (en) * | 2015-06-30 | 2017-01-05 | 华为技术有限公司 | Data transmission method and device |
| CN107734712A (en) * | 2016-08-12 | 2018-02-23 | 电信科学技术研究院 | A kind of accidental access method and equipment |
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| CN1731749A (en) * | 2004-08-07 | 2006-02-08 | 华为技术有限公司 | Multi-carrier frequency system access method |
| CN1734976A (en) * | 2004-08-14 | 2006-02-15 | 华为技术有限公司 | Method for realizing user equipment wireless resource control |
| CN1750703A (en) * | 2004-09-13 | 2006-03-22 | 大唐移动通信设备有限公司 | Method for distributing radio resource in multiple carrier time-division duplex mobile communication system |
| EP1662834A1 (en) * | 2004-11-24 | 2006-05-31 | Siemens Mobile Communications S.p.A. | Dynamic channel selection based on interference and spectral usage in a multicarrier cellular communication system |
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| CN100382641C (en) * | 2004-08-17 | 2008-04-16 | 中兴通讯股份有限公司 | Channel allocation method for multi-carrier CDMA system |
| US8831115B2 (en) * | 2004-12-22 | 2014-09-09 | Qualcomm Incorporated | MC-CDMA multiplexing in an orthogonal uplink |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731749A (en) * | 2004-08-07 | 2006-02-08 | 华为技术有限公司 | Multi-carrier frequency system access method |
| CN1734976A (en) * | 2004-08-14 | 2006-02-15 | 华为技术有限公司 | Method for realizing user equipment wireless resource control |
| CN1750703A (en) * | 2004-09-13 | 2006-03-22 | 大唐移动通信设备有限公司 | Method for distributing radio resource in multiple carrier time-division duplex mobile communication system |
| EP1662834A1 (en) * | 2004-11-24 | 2006-05-31 | Siemens Mobile Communications S.p.A. | Dynamic channel selection based on interference and spectral usage in a multicarrier cellular communication system |
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| CN101340230A (en) | 2009-01-07 |
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