CN101137134A - Base station and method for transmitting downlink control signalling - Google Patents
Base station and method for transmitting downlink control signalling Download PDFInfo
- Publication number
- CN101137134A CN101137134A CNA2006101126568A CN200610112656A CN101137134A CN 101137134 A CN101137134 A CN 101137134A CN A2006101126568 A CNA2006101126568 A CN A2006101126568A CN 200610112656 A CN200610112656 A CN 200610112656A CN 101137134 A CN101137134 A CN 101137134A
- Authority
- CN
- China
- Prior art keywords
- control signaling
- base station
- mode
- dedicated control
- adopts
- 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
- 230000011664 signaling Effects 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 241000264877 Hippospongia communis Species 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000013256 coordination polymer Substances 0.000 claims 2
- 238000005516 engineering process Methods 0.000 description 7
- 239000000546 pharmaceutical excipient Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This method includes: the base station uses the orthogonal freq.-division multiplexing (OFDM) format to modulate the multi-address multiplexing mode. The down-going control signaling includes the common control signaling (CCS) and the special control signaling (SCS). Further, the base station uses time-division multiplexing (TDM) format to transmit simultaneously CCS, SCS and data and uses freq.-division multiplexing (FDM) format to transmit simultaneously SCS and data. This invention also disclosed a base station used in the wideband time-division duplex cell system (WTDCS). This invention can be applied in the TDD system. It effectively solves the transmission problem of the down-going control signaling in WTDCS and ensures UE to obtain correctly the control info and to reflect/ process rapidly the control info. It also saves the signaling control resource and the terminal battery consumption.
Description
Technical field
The present invention relates to communication technical field, be meant especially a kind of in broad band time division duplex honey comb system the base station and the method for transmitting downlink control signal.
Background technology
TD SDMA (TD-SCDMA) is the 3-G (Generation Three mobile communication system) of unique employing time division duplex (TDD) mode in three kinds of big international standards, supports the transmission of up-downgoing non-symmetrical service, has bigger flexibility on spectrum utilization.This system synthesis has adopted the advanced technology in the radio communications such as smart antenna, uplink synchronous, joint-detection and software radio, makes system have the higher performance and the availability of frequency spectrum.
Along with the development and the development of technology of society, people improve constantly the requirement of mobile communication, wish that system can provide the data transport service of big capacity, two-forty, low time delay.In order to satisfy this growing demand, the TD-SCDMA system needs continuous evolution equally and improves performance.
The frame structure of existing TD-SCMDA system as shown in Figure 1.Among Fig. 1, each wireless sub-frame is made of three special time slots of 7 common time slots.Wherein, common time slot is TS0～TS6; be used for transmitting data; three special time slots are respectively downlink pilot frequency channel (DwPTS); be used for the transmission of the down-going synchronous information of system, ascending pilot channel (UpPTS) is used for the uplink synchronous information transmission that the user inserts; translation and protection time slot (GP) is used to provide the time interval of descending sending time slots to up sending time slots conversion.
Existing TD-SCMDA system is that a spreading rate is 1.28Mcps, and bandwidth is the system of 1.6MHz.The pilot portion of its data division and up-downgoing adopts same signal format.In the TD-SCDMA evolution scheme, bandwidth can arrive more than the 20MHz, can support different bandwidth 1.25MHz, 2.5MHz, 5MHz, 10MHz and 20MHz work simultaneously.
The TD-SCMDA system adopts code division multiple access (CDMA) as access mode, and its resource is based on the notion of time slot and code channel.When the TD-SCMDA system sends control signaling, always, distribute certain time-frequency and code channel resource, send signaling and adopt sign indicating number to divide the single carrier mode in whole carrier wave frequency range, to send according to the size of control signaling.
In the evolution scheme of TD-SCDMA, in order to obtain the jumbo service of two-forty, need take wideer bandwidth,, be referred to as broad band time division duplex honey comb system here.In broad band time division duplex honey comb system, descending modulation system can adopt OFDM (Orthogonal Frequency DivisionMultiplexing, OFDM) mode.The OFDM mode has obtained application in wideband wireless local area network, the application in cellular mobile communication also needs to solve a series of problem.At present, in broad band time division duplex honey comb system, how transmitting downlink control signal so that subscriber equipment (UE) can efficiently receive in time, demodulation control signaling, is finished relevant Data Receiving and control and is gone back the good scheme of neither one.
Summary of the invention
The invention provides a kind of in broad band time division duplex honey comb system the base station and the method for transmitting downlink control signal, in broad band time division duplex honey comb system, realize the transmission of descending control signaling, make user terminal can be fast, receive in time, demodulation control signaling.
Provided by the invention a kind of in broad band time division duplex honey comb system the method for transmitting downlink control signal comprise:
OFDM modulation system modulation multiple access multiplexing mode is adopted in the base station, descending control signaling comprises public control signaling and dedicated control signaling, the base station adopts the Time Division Multiplexing mode to described public control signaling and dedicated control signaling with send data and carry out multiplexingly, adopts frequency division multiplexing (FDM) mode to carry out described dedicated control signaling and transmission data multiplexing.
Described public control signaling adopts the mode of combined coding or independent coding to send.
Described dedicated control signaling adopts adaptive coding and modulating (AMC, adaptive modulation andcoding) mode to send.
Described dedicated control signaling adopts separately, and the mode of coding sends.
This method further comprises: user terminal adopts common pilot symbols that the descending public control signaling that receives is carried out demodulation.
This method further comprises: user terminal adopts dedicated pilot symbol that the downlink dedicated control signaling that receives is carried out demodulation.
A kind of base station in broad band time division duplex honey comb system that invention provides comprises: the OFDM modulating device,
The OFDM modulating device adopts the TDM mode with public control signaling and dedicated control signaling with send data and carry out multiplexingly, and adopts FDM to carry out dedicated control signaling and transmission data multiplexing.
Described OFDM modulating device can comprise:
Be used for the coding unit of encoding for public control signaling, dedicated control signaling and the transmission data that will send;
To public control signaling, dedicated control signaling, transmission data behind the coding and need send to the modulating unit that the frequency pilot sign of UE is modulated;
The modulation signal that receives is carried out the subcarrier in frequency domain Multiplexing Unit of frequency domain multiplexing; And the subcarrier in frequency domain Multiplexing Unit adopts the time division multiplexing tdm mode to described public control signaling and dedicated control signaling with send data and carry out multiplexingly, adopts frequency division multiplexing FDM mode to carry out described dedicated control signaling and transmission data multiplexing;
The fourier transform unit of conversion when carrying out the frequency-region signal of receiving frequently;
Time-domain signal is added Cyclic Prefix (CP) to be handled the back and adds the CP processing unit to what the radio frequency transmitting element of base station sent.
Described coding unit adopts combined coding to described public control signaling or encodes separately.
Described coding unit adopts coding separately to described dedicated control signaling.
The present invention is owing to adopt the TDM mode to carry out multiplexing to described public control signaling and dedicated control signaling with the transmission data, adopt frequency division multiplexing FDM mode to carry out described dedicated control signaling and transmission data multiplexing, make UE can receive public control signaling soon, obtain the transmission resource location of its business datum, thereby can apace control information be reacted and handle, and save resource and the end cell consumption that has been used for the control signaling.If some UE learns the data that do not send to it in this time slot after receiving public control signaling, it can also not receive other data in this time slot, thereby saves the battery expense.Public control signaling utilizes common pilot symbols to carry out demodulation, has therefore guaranteed that the UE in the sub-district can receive.
Description of drawings
Fig. 1 is the frame structure schematic diagram of existing TD-SCMDA system;
Fig. 2 is for adopting the channel resource schematic diagram of OFDM modulation system;
Fig. 3 is the schematic diagram of descending control signaling transmission of the present invention;
Fig. 4 is for realizing OFDM modulating device schematic diagram of the present invention.
Embodiment
Referring to shown in Figure 2, in broad band time division duplex honey comb system, adopt the channel resource of OFDM modulation to form by time domain and frequency domain, on time domain, channel resource is divided into the regular hour section, is called time slot here, is made up of a plurality of OFDM symbols on the inherent time domain of each time slot; And on frequency domain, each OFDM symbol comprises a plurality of subcarriers, and subcarrier takies identical bandwidth.
Frequency pilot sign is divided into common pilot symbols and dedicated pilot symbol, and common pilot symbols is to be received and to be used for control channel and data demodulates by all UE.And dedicated pilot symbol is generally received and is used for the demodulation of control channel and service data transmission by specific one or more UE.
Place common pilot symbols in each Resource Block top first or second OFDM symbol, common pilot symbols sends in whole OFDM notation frequency range, and evenly distributes in subcarrier, and distribution density is fixed according to system requirements or adjustable setting.
Can in whole system sends frequency range, send for dedicated pilot symbol, also can in band segment, send as required.As when the OFDM modulation system, if adopt intelligent antenna beam excipient technology to send data in the band segment, then can in this section frequency range, place dedicated pilot symbol, this dedicated pilot symbol and send data excipient together is used for the demodulation of receiving terminal data.
Descending control signaling comprises public control signaling and dedicated control signaling.Wherein, public control signaling is to be sent by the base station, can be received by all UE in the sub-district.Public control signaling can comprise certain UE or one group of UE ID number, be used for the resource that service data transmission distributes, and the mode of service data transmission, send data as adopting the MIMO mode still to send diversity mode, single antenna mode or intelligent antenna beam excipient mode.Dedicated control signaling can comprise and be used to indicate code rate, the digital modulation that certain UE or one group of UE service data transmission adopt and mix automatically and retransmit (hybrid ARQ, information such as HARQ).Certainly, public control signaling and dedicated control signaling are not limited to above-mentioned information, also may comprise other information.
The present invention is in broad band time division duplex honey comb system, adopts the TDM mode to carry out multiplexing with the transmission data public control signaling and dedicated control signaling; Adopt FDM to carry out dedicated control signaling and transmission data multiplexing.
For example: public control signaling is placed in one or two OFDM symbol of front of each OFDM channel resource, adopt the TDM mode multiplexing with the resource of data in the time interval resource piece and dedicated control signaling.The all or part of resource that promptly takies first or second OFDM symbol sends public control signaling.Certainly, because the public control signaling that sends is limited, not necessarily need to take whole subcarriers of whole OFDM symbol, therefore, send in the sub-carrier resources that data and dedicated control signaling can utilize other OFDM symbols or public control signaling to be left in first or second OFDM symbol.
Public control signaling adopts the benefit of TDM mode to be: UE can receive public control signaling soon, obtains the transmission resource location of its business datum, thereby can receive business datum apace.If some UE learns the data that do not send to it in this time slot after receiving public control signaling, it can also not receive other data in this time slot, thereby saves the battery expense.Public control signaling utilizes common pilot symbols to carry out demodulation, has therefore guaranteed that the UE in the sub-district can receive this signaling.
And public control signaling can adopt combined coding or encode separately.So-called combined coding is meant that the different public control signaling of a plurality of UE lumps together, and by chnnel coding, generates same chnnel coding code word and carries out.This coded system can obtain bigger channel gain because generated codeword is long when decoding, the cyclic redundancy that also can reduce signaling simultaneously detects the expense of bit (CRC).Coding refers to the UE of a UE or the identical shared information of a plurality of employings separately, to sharing the mode that information is encoded separately.Adopt independent coding can when sending, carry out methods such as power control, improve the performance that receives.
After can adopting the FDM mode and send data multiplex, dedicated control signaling transmits, be that dedicated control signaling sends in same transmission Resource Block with sending data, the channel resource that dedicated control signaling takies is distributed in a plurality of interior different sub carrier of OFDM symbol that are used for sending data.Because dedicated control signaling only sends to particular UE, therefore, when sending data, can adopt the excipient technology identical with data with smart antenna, improved receptivity, reduced the channel resource that is used to send control signaling.
Dedicated control signaling can adopt the AMC mode to send, and according to the channel condition of the time that sends signaling, selects suitable modulation, coded system, can reduce resource overhead further like this, improves the utilance of resource.
Simultaneously, dedicated control signaling adopts the mode of coding separately, improves receptivity by methods such as power controls.
When Fig. 3 adopted intelligent antenna beam excipient technology to carry out transfer of data for the broad band time division duplex honey comb system based on OFDM, the present invention realized the schematic diagram of descending control signaling transmission.Referring to shown in Figure 3, R1 is a common pilot symbols, and AR1 and AR2 are dedicated pilot symbol, and A is public control signaling, and B is a dedicated control signaling, and the business datum that does not have the part of symbol to indicate to send is called for short sending data.Public control signaling is transmitted in first OFDM, with the multiplex mode of data and dedicated signaling employing TDM.Public control signaling adopts associating or encodes separately, utilizes common pilot symbols to carry out demodulation.Dedicated pilot symbol and data, dedicated control signaling adopt the intelligent antenna beam excipient to transmit, and are used to data, dedicated signaling demodulation.Dedicated control signaling is multiplexing with transmission The data FDM mode, is scattered among second to the 9th OFDM and transmits.Dedicated signaling adopts independent coded system to transmit.
Referring to shown in Figure 4, based on above-mentioned thought of the present invention, the present invention also proposes in a kind of broad band time division duplex honey comb system the base station based on the OFDM modulation system, this base station comprises OFDM modulating device 40, and this OFDM modulating device 40 adopts the TDM mode to carry out multiplexing with the transmission data public control signaling and dedicated control signaling; Adopt FDM to carry out dedicated control signaling and transmission data multiplexing.
Wherein, subcarrier in frequency domain Multiplexing Unit 43 adopt the time division multiplexing tdm modes will described public control signaling with dedicated control signaling with send data and carry out multiplexingly, adopt frequency division multiplexing FDM mode to carry out described dedicated control signaling and transmission data multiplexing.
41 pairs of described public control signalings of coding unit can adopt combined coding or encode separately, can adopt independent coding to described dedicated control signaling.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the method for transmitting downlink control signal in the broad band time division duplex honey comb system is characterized in that this method comprises:
The base station adopts the modulating in OFDM mode to modulate the multiple access multiplexing mode, descending control signaling comprises public control signaling and dedicated control signaling, the base station adopt the time division multiplexing tdm mode will described public control signaling with described dedicated control signaling with send data and carry out multiplexingly, adopt frequency division multiplexing FDM mode to carry out described dedicated control signaling and transmission data multiplexing.
2. method according to claim 1 is characterized in that, described public control signaling adopts the mode of combined coding or independent coding to send.
3. method according to claim 1 is characterized in that, described dedicated control signaling adopts adaptive coding and modulating AMC mode to send.
4. method according to claim 1 is characterized in that, described dedicated control signaling adopts the mode of encoding separately to send.
5. method according to claim 1 is characterized in that, this method further comprises: subscriber equipment adopts common pilot symbols that the descending public control signaling that receives is carried out demodulation.
6. method according to claim 1 is characterized in that, this method further comprises: subscriber equipment adopts dedicated pilot symbol that the downlink dedicated control signaling that receives is carried out demodulation.
7. the base station in the broad band time division duplex honey comb system is characterized in that this base station comprises the OFDM modulating device,
The OFDM modulating device adopts the TDM mode with public control signaling and dedicated control signaling with send data and carry out multiplexingly, and adopts the FDM mode to carry out dedicated control signaling and transmission data multiplexing.
8. base station according to claim 7 is characterized in that, described OFDM modulating device comprises:
Be used for the coding unit of encoding for public control signaling, dedicated control signaling and the transmission data that will send;
Public control signaling, dedicated control signaling, transmission data behind the coding and the frequency pilot sign that need send to UE are modulated the modulating unit that obtains modulation signal;
Described modulation signal is carried out the subcarrier in frequency domain Multiplexing Unit of frequency domain multiplexing, described subcarrier in frequency domain Multiplexing Unit adopt the time division multiplexing tdm mode will described public control signaling with described dedicated control signaling with send data and carry out multiplexingly, adopt frequency division multiplexing FDM mode to carry out described dedicated control signaling and transmission data multiplexing;
The fourier transform unit of conversion when carrying out the frequency-region signal of receiving frequently;
Time-domain signal is added cyclic prefix CP to be handled the back and adds the CP processing unit to what the radio frequency transmitting element of base station sent.
9. base station according to claim 8 is characterized in that, described coding unit adopts combined coding to described public control signaling or encodes separately.
10. described according to Claim 8 base station is characterized in that, described coding unit adopts coding separately to described dedicated control signaling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101126568A CN101137134B (en) | 2006-08-28 | 2006-08-28 | Base station and method for transmitting downlink control signalling |
| PCT/CN2007/070423 WO2008025274A1 (en) | 2006-08-28 | 2007-08-06 | A base station and the method to transmit the downlink control signaling used by the base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101126568A CN101137134B (en) | 2006-08-28 | 2006-08-28 | Base station and method for transmitting downlink control signalling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101137134A true CN101137134A (en) | 2008-03-05 |
| CN101137134B CN101137134B (en) | 2010-09-08 |
Family
ID=39135504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101126568A Active CN101137134B (en) | 2006-08-28 | 2006-08-28 | Base station and method for transmitting downlink control signalling |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101137134B (en) |
| WO (1) | WO2008025274A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010012156A1 (en) * | 2008-07-28 | 2010-02-04 | 大唐移动通信设备有限公司 | Method, system and device for data transmission |
| WO2012016547A1 (en) * | 2010-08-06 | 2012-02-09 | Huawei Technologies Co., Ltd. | Hybrid orthogonal frequency division multiplexing time domain multiplexing passive optical network |
| CN103503335A (en) * | 2011-05-03 | 2014-01-08 | Lg电子株式会社 | Method for terminal to transmit/receive signal to/from base station in wireless communication system and device therefor |
| WO2017024998A1 (en) * | 2015-08-13 | 2017-02-16 | 电信科学技术研究院 | Data transmission method and device |
| WO2017088791A1 (en) * | 2015-11-24 | 2017-06-01 | 华为技术有限公司 | Wave beam processing method and base station |
| WO2018059601A1 (en) * | 2016-09-30 | 2018-04-05 | 中兴通讯股份有限公司 | Method, device, and equipment for transmitting common control information |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218521C (en) * | 2002-02-09 | 2005-09-07 | 华为技术有限公司 | Channel time sequence distributing method suitable for high-speed data transmission of time division duplex system |
| EP1647115B1 (en) * | 2003-07-18 | 2011-11-02 | Electronics and Telecommunications Research Institute | Method and device for allocating radio resources in wireless portable network system |
| WO2005050875A1 (en) * | 2003-11-19 | 2005-06-02 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving common control information in a wireless communication system |
| CN100373814C (en) * | 2004-08-23 | 2008-03-05 | 中兴通讯股份有限公司 | High-frequency-amplification station for supporting time division duplex operation mode in orthogonal frequency division multiplexing system |
-
2006
- 2006-08-28 CN CN2006101126568A patent/CN101137134B/en active Active
-
2007
- 2007-08-06 WO PCT/CN2007/070423 patent/WO2008025274A1/en active Application Filing
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010012156A1 (en) * | 2008-07-28 | 2010-02-04 | 大唐移动通信设备有限公司 | Method, system and device for data transmission |
| CN101640582B (en) * | 2008-07-28 | 2012-07-25 | 电信科学技术研究院 | Data transmission method, system and device |
| WO2012016547A1 (en) * | 2010-08-06 | 2012-02-09 | Huawei Technologies Co., Ltd. | Hybrid orthogonal frequency division multiplexing time domain multiplexing passive optical network |
| US8885652B2 (en) | 2010-08-06 | 2014-11-11 | Futurewei Technologies, Inc. | Hybrid orthogonal frequency division multiplexing time domain multiplexing passive optical network |
| CN103503335A (en) * | 2011-05-03 | 2014-01-08 | Lg电子株式会社 | Method for terminal to transmit/receive signal to/from base station in wireless communication system and device therefor |
| CN103503335B (en) * | 2011-05-03 | 2017-05-24 | Lg电子株式会社 | Method for terminal to transmit/receive signal to/from base station in wireless communication system and device therefor |
| WO2017024998A1 (en) * | 2015-08-13 | 2017-02-16 | 电信科学技术研究院 | Data transmission method and device |
| CN106455095A (en) * | 2015-08-13 | 2017-02-22 | 电信科学技术研究院 | Data transmission method and apparatus |
| WO2017088791A1 (en) * | 2015-11-24 | 2017-06-01 | 华为技术有限公司 | Wave beam processing method and base station |
| WO2018059601A1 (en) * | 2016-09-30 | 2018-04-05 | 中兴通讯股份有限公司 | Method, device, and equipment for transmitting common control information |
| US11405892B2 (en) | 2016-09-30 | 2022-08-02 | Zte Corporation | Method, device, and apparatus for transporting common control information |
| US11917621B2 (en) | 2016-09-30 | 2024-02-27 | Zte Corporation | Method, device, and apparatus for transporting common control information |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008025274A1 (en) | 2008-03-06 |
| CN101137134B (en) | 2010-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2208315B1 (en) | Multiple compatible OFDM systems with different bandwidths | |
| EP3454618B1 (en) | Method and apparatus for allocating a control channel resource of a relay node in a backhaul subframe | |
| EP3488576B1 (en) | Symbol and subframe alignment in a wireless communication system | |
| CN101491153B (en) | Base station and transmission method | |
| EP2161941B1 (en) | A method and device for pilot mapping in multiplexing mode of unicast and broadcast/multicast services | |
| US20110164549A1 (en) | Mobile communication system | |
| CN101287281A (en) | Transmission apparatus and method for scheduling control signaling of downlink in wireless communication system | |
| CN101647304B (en) | Base station device | |
| CN111052663B (en) | Apparatus and method for locating phase tracking reference signal in wireless communication system | |
| CN100589368C (en) | Method for realizing down physical layer control channel of orthogonal frequency division multiplex system | |
| WO2005125020A1 (en) | Methods and systems for enabling feedback in wireless communication networks | |
| CN101296030A (en) | Transmission equipment and method for downlink reference signal of TDD system | |
| CN102263616A (en) | Method and device of indicator control channel | |
| EP3361801A1 (en) | Data transmission method | |
| IL161419A (en) | Handling communication interferences in wireless systems | |
| CN102017758A (en) | Aggregation of resources over multiple frames in a TDD communication system | |
| CN101137134B (en) | Base station and method for transmitting downlink control signalling | |
| US11206120B2 (en) | Selection of waveform for uplink communications | |
| EP2288216B1 (en) | Method and apparatus for allocating a control channel resource of a relay node in a backhaul subframe | |
| CN102055705A (en) | Uplink synchronization method and system for terminals | |
| IL194097A (en) | Ofdma-based operation of a wireless subscriber terminal in a plurality of cells | |
| CN107769903B (en) | method and device for wireless communication | |
| CN1996791A (en) | A downlink synchronization method of broadband time and division duplex cellular system | |
| Cui | LTE peak rates analysis | |
| CN102325121B (en) | Orthogonal frequency division multiple access system and method for wireless relay communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110510 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110510 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Patentee before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210531 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |