CN102088312A - Method and device for transmitting downlink data of relay link - Google Patents
Method and device for transmitting downlink data of relay link Download PDFInfo
- Publication number
- CN102088312A CN102088312A CN2010100339277A CN201010033927A CN102088312A CN 102088312 A CN102088312 A CN 102088312A CN 2010100339277 A CN2010100339277 A CN 2010100339277A CN 201010033927 A CN201010033927 A CN 201010033927A CN 102088312 A CN102088312 A CN 102088312A
- Authority
- CN
- China
- Prior art keywords
- pilot
- dedicated pilot
- downlink data
- pdcch
- zone
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0084—Formats for payload data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and device for transmitting downlink data of a relay link, which can maintain the consistency for special pilot frequency configuration of a plurality of RPB (Physical Resource Blocks) scheduled by a terminal. The method comprises the step of transmitting downlink data by adopting a TDM (Time Division Multiplexing) mode in an R-PDCCH (Relay-Physical Downlink Control Channel) area and an R-PDSCH (Relay-Physical Downlink Share Channel) area in the same PRB, wherein a resource unit capable of transmitting special pilot frequency in the R-PDCCH area does not transmit the downlink data.
Description
Technical field
The present invention relates to communication technical field, be meant a kind of transmission method and device of repeated link downlink data especially.
Background technology
As shown in Figure 1, in advanced Long Term Evolution (LTE-A) system, evolution base station (eNB) is linked core net (CN) by wireline interface; Via node (RN) is linked eNB by wave point; Terminal (UE) is linked RN or eNB by wave point.Wherein, RN is relaying (backhaul) link to the link between the eNB; Link between from RN to UE is an access link.
The backhaul link exists two kinds of channels, i.e. relaying Physical Downlink Control Channel (R-PDSCH) and relaying Physical Downlink Shared Channel (R-PDCCH) at present.R-PDCCH is meant the control channel that eNB sends to RN on the backhaul link.R-PDSCH is meant the Physical Shared Channel that eNB sends to RN on the backhaul link.
Wherein, R-PDCCH may exist in the Physical Resource Block (PRB) simultaneously with R-PDSCH, also may only have the R-PDCCH channel in a PRB.Be under the situation in the PRB that at R-PDSCH and R-PDCCH coexistence the R-PDSCH channel may use demodulation pilot frequency (DMRS) demodulation, also may use public guide frequency (CRS) to carry out demodulation, DMRS is also referred to as dedicated pilot.
Determine at present based on the DMRS zone of time domain code division multiplexing (CDM-T) as shown in Figure 2, wherein demodulation pilot frequency adopts the mode of CDM-T, promptly two pilot tone point signal utilization sign indicating numbers that time domain is adjacent are assigned to carry out multiplexing.Provided the position that the public guide frequency of 4 ports takies among the figure.
For the control channel of backhaul link, the characteristics of its R-PDCCH are the services for a plurality of relayings (relay), have wherein comprised the control information of a plurality of relay, can notify the relevant control signaling of a plurality of relay simultaneously.R-PDCCH has generally carried out interweaving between a plurality of relay user data, and is dispersed in the deep fade of avoiding on the frequency band than broad in certain frequency band, utilizes big frequency bandwidth to obtain frequency diversity gain simultaneously.This shows the detection performance that the redundancy that R-PDCCH channel usage is bigger obtains.
There are two kinds of multiplex modes, i.e. time-division multiplexing (TDM) and frequency division multiplexing (FDM) mode at present between R-PDCCH and the R-PDSCH.Fig. 3 has provided the multiplexing mode of FDM, and Fig. 4 has provided the multiplexing schematic diagram of TDM+FDM.
When R-PDSCH and R-PDCCH carry out FDM when multiplexing, R-PDSCH has taken different PRB with R-PDCCH, like this in each PRB, or is R-PDSCH, or is the R-PDCCH channel.
When R-PDSCH and R-PDCCH carry out FDM and TDM when multiplexing, R-PDCCH is positioned at the part PRB inside that R-PDSCH takies, and in these PRB, has R-PDSCH and R-PDCCH channel simultaneously like this.
Adopt the multiplexing this situation of TDM+FDM for R-PDCCH and R-PDSCH, there are two kinds of situations: promptly have the R-PDSCH channel in a PRB, or there are this two kinds of channels simultaneously in a PRB, be R-PDCCH and the R-PDSCH employing TDM mode in the same PRB, each R-PDCCH adopts the FDM mode, adopts the FDM mode in each R-PDSCH.Under the situation for two kinds of channel coexistences, R-PDSCH may use the DMRS demodulation, also may use the CRS demodulation, but the pilot frequency locations of DMRS is positioned at the R-PDCCH zone, dedicated pilot zone in the R-PDCCH zone comprises two ports, 6th, in 7 OFDM symbols, take 3 Resource Units in each OFDM symbol and send dedicated pilots, other zone that can send dedicated pilot can be used to send downlink data.When the dedicated pilot zone comprises four ports, take 6 Resource Units and send dedicated pilots, because the public guide frequency in the R-PDCCH zone takies 4 Resource Units, promptly shown in the 5th OFDM symbol.
Therefore, since in the R-PDCCH zone because the Resource Unit number difference of transmission pilot tone in each OFDM symbol, it is the pilot density difference, will cause in the R-PDCCH zone REG to the mapping complex of RE, also cause existing two kinds of R-PDCCH mapping situations simultaneously because may exist two kinds of DMRS to send situations.
Summary of the invention
The invention provides a kind of transmission method and device of repeated link downlink data, can guarantee consistency for the dedicated pilot configuration of a plurality of RPB of terminal scheduling.
The sending method of a kind of repeated link downlink data that the embodiment of the invention provides, this method comprises:
Relaying Physical Downlink Control Channel R-PDCCH zone and relaying Physical Downlink Shared Channel R-PDSCH zone in same Physical Resource Block PRB adopt the time division multiplexing tdm mode to send downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
The dispensing device of a kind of repeated link downlink data that the embodiment of the invention provides comprises:
Preserve the unit, be used to preserve the downlink data transmission configuration information;
Transmitting element, be used for according to described transmission of configuration information, R-PDCCH in same PRB zone and R-PDSCH zone employing time division multiplexing tdm mode send downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
The method of reseptance of a kind of repeated link downlink data that the embodiment of the invention provides comprises:
Via node equipment carries out the reception of pilot signal according to the pilot configuration that obtains, and carry out the R-PDSCH Channel Detection according to the pilot signal that receives and obtain downlink data, wherein when detecting the R-PDCCH channel, do not detect the Resource Unit that can transmit dedicated pilot in the R-PDCCH zone.
The receiving system of a kind of repeated link downlink data that the embodiment of the invention provides comprises:
First receiving element is used for carrying out the reception of pilot signal according to the pilot configuration that obtains;
Second receiving element is used for carrying out the R-PDSCH Channel Detection according to the pilot signal that receives and obtains downlink data.
The present invention program is owing to adopt R-PDCCH zone and R-PDSCH zone in same PRB to adopt TDM mode transmitting downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone is transmitting downlink data not, therefore can guarantee have R-PDCCH and do not existing in the PRB of R-PDCCH, the density of dedicated pilot is identical, avoid the difference of the R-PDSCH channel demodulation performance that the variable density owing to dedicated pilot causes, guaranteed the simple and efficient of scheduling.
Description of drawings
Fig. 1 is the schematic network structure of LTE-A;
Fig. 2 is a LTE-A demodulation pilot frequency configuration schematic diagram;
Fig. 3 is R-PDCCH and the multiplexing schematic diagram of R-PDSCH FDM;
Fig. 4 is R-PDCCH and the multiplexing schematic diagram of R-PDSCH FDM+TDM;
Fig. 5 is the schematic diagram of the embodiment of the invention at the transmission method of repeated link downlink data;
Fig. 6 is for using CRS to separate timing, the pilot frequency configuration figure in the R-PDCCH zone as R-PDSCH;
Fig. 7 is for using DMRS to separate timing, the pilot frequency configuration figure in the R-PDCCH zone as R-PDSCH;
Fig. 8 is the structural representation of the dispensing device of the embodiment of the invention;
Fig. 9 is the structural representation of the receiving system of the embodiment of the invention.
Embodiment
When utilizing prior art to send pilot tone in R-PDCCH zone for simplification in the R-PDCCH district mapping complex degree from REG to RE, in the embodiment of the invention, R-PDCCH in same PRB zone and R-PDSCH zone employing TDM mode transmitting downlink data, and the Resource Unit that can transmit dedicated pilot in described R-PDCCH zone transmitting downlink data not.
Referring to shown in Figure 5, the sending method of the repeated link downlink data of the embodiment of the invention may further comprise the steps:
Step 501: R-PDCCH zone and the R-PDSCH zone employing TDM mode of base station in same PRB sends downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
When the configuration receiver side adopted the public guide frequency demodulation at the downlink data that the R-PDSCH zone sends, it is not occupied that the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone can be used as reservation of resource.
When the configuration receiving terminal adopts the dedicated pilot demodulation at the downlink data that the R-PDSCH zone sends, the Resource Unit that can transmit dedicated pilot in described R-PDCCH zone only transmits dedicated pilot, and the resource that in the described Resource Unit that transmits dedicated pilot, is not used in the transmission dedicated pilot to can be used as reservation of resource not occupied.
The dedicated pilot that can transmit the Resource Unit transmission of dedicated pilot in described R-PDCCH zone can be the dedicated pilot of part port, also can be the dedicated pilot of whole ports.
Step 502: via node equipment carries out the reception of pilot signal according to the pilot configuration that obtains.
Step 503: via node equipment carries out the R-PDSCH Channel Detection according to the pilot signal that receives and obtains downlink data, wherein when detecting the R-PDCCH channel, does not detect the Resource Unit that can transmit dedicated pilot in the R-PDCCH zone.
When if via node equipment determine to adopt public guide frequency demodulation R-PDSCH channel, then receive whole dedicated pilots in the current PRB according to the pilot configuration that obtains.
If when via node equipment determines to adopt public guide frequency demodulation R-PDSCH channel, then receive whole spendable public guide frequencies in the current PRB according to the pilot configuration that obtains.
The embodiment of the invention can guarantee R-PDCCH internal resource unit relative fixed, the REG mapping is simple unified, if use the DMRS demodulation simultaneously, can guarantee have R-PDCCH and do not existing in the PRB of R-PDCCH, the DMRS pilot density is identical, avoid the difference of the R-PDSCH channel demodulation performance that causes because the DMRS pilot density changes, guaranteed the simple and efficient of scheduling.
Lift the specific embodiment mode below and describe technical scheme of the present invention in detail.
In embodiments of the present invention, keep the DMRS port position in the R-PDCCH zone all the time, promptly no matter whether use the DMRS demodulation in the PRB that this R-PDCCH takies.In the PRB for the R-PDCCH existence, the pilot tone that the R-PDSCH channel uses has two kinds of situations, the one, CRS, the one, DMRS.
Fig. 6 has provided and has used CRS to carry out under the situation of demodulation the configuring condition of pilot tone in the R-PDCCH zone.Wherein, the resource of the DMRS position of R-PDCCH inside all is retained out, does not send any information.
Fig. 7 has provided and has used DMRS to carry out under the situation of demodulation the configuring condition of pilot tone in the R-PDCCH zone.Wherein, the DMRS of R-PDCCH inside may all send, also may only use part, but according to the method for this patent, the Resource Unit of these DMRS pilot frequency locations all keeps, and sends the DMRS pilot tone if desired, then use the Resource Unit of DMRS pilot frequency locations to send the DMRS pilot tone, otherwise, the Resource Unit of DMRS pilot frequency locations is kept, do not send information.
In embodiments of the present invention, in the LTE-A system, at base station side, if R-PDSCH uses the DMRS demodulation, the DMRS pilot frequency locations in the R-PDCCH zone keeps, and the DMRS pilot frequency locations that needs to send sends the DMRS pilot tone; If R-PDSCH does not use the DMRS demodulation, the DMRS pilot frequency locations in the R-PDCCH zone keeps, and does not send information.At trunk side, when detecting the R-PDCCH channel, DMRS pilot frequency locations is wherein given tacit consent to all the time and is not had data.For the detection of R-PDSCH channel,, then use the interior whole DMRS of this PRB to carry out demodulation if use the DMRS pilot detection; If use CRS to carry out demodulation, then use whole operable CRS to carry out demodulation.
As can be seen from Figures 6 and 7, under the situation of using CRS and DMRS, the configuration-independent of resource location in the R-PDCCH zone and DMRS pilot tone can guarantee that like this REG mapping in the R-PDCCH zone is simple relatively.
In addition, angle from R-PDSCH, when R-PDSCH uses the DMRS demodulation, use that the embodiment of the invention can guarantee the PRB that all exists at two kinds of channels and only the DMRS pilot density of the PRB inside of R-PDSCH channel existence is identical, guaranteed that from the angle of DMRS performance for estimating channel is basic identical, can be reasonable the gain of assurance scheduling.
Referring to shown in Figure 8, the dispensing device of a kind of repeated link downlink data of the embodiment of the invention comprises:
Preserve unit 81, be used to preserve the downlink data transmission configuration information;
Transmitting element 82, be used for according to described transmission of configuration information, R-PDCCH in same PRB zone and R-PDSCH zone employing time division multiplexing tdm mode send downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
When receiver side adopted the public guide frequency demodulation at the downlink data that the R-PDSCH zone sends, the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone was not occupied as reservation of resource.
When receiver side adopts the dedicated pilot demodulation at the downlink data that the R-PDSCH zone sends, described transmitting element, the Resource Unit that is used for can transmitting in described R-PDCCH zone dedicated pilot only transmits dedicated pilot, and it is not occupied as reservation of resource to be not used in the resource of transmission dedicated pilot in the described Resource Unit that transmits dedicated pilot.
Described transmitting element, the dedicated pilot that is used for can transmitting in described R-PDCCH zone the Resource Unit transmission of dedicated pilot is the dedicated pilot of part port, or is the dedicated pilot of whole ports.
Referring to shown in Figure 9, the receiving system of a kind of repeated link downlink data of the embodiment of the invention comprises:
First receiving element 91 is used for carrying out the reception of pilot signal according to the pilot configuration that obtains;
Second receiving element 92 is used for carrying out the R-PDSCH Channel Detection according to the pilot signal that receives and obtains downlink data, and when detecting the R-PDCCH channel, do not detect the Resource Unit that can transmit dedicated pilot in the R-PDCCH zone.
Described first receiving element 91 when being used for determine adopting dedicated pilot demodulation R-PDSCH channel, then receives whole dedicated pilots in the current PRB according to the pilot configuration that obtains.
Described first receiving element 91 when being used for determining to adopt public guide frequency demodulation R-PDSCH channel, then receives whole spendable public guide frequencies in the current PRB according to the pilot configuration that obtains.
In the embodiment of the invention owing to adopt R-PDCCH zone and R-PDSCH zone employing TDM mode transmitting downlink data in same PRB, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone is transmitting downlink data not, therefore can guarantee have R-PDCCH and do not existing in the PRB of R-PDCCH, the density of dedicated pilot is identical, avoid the difference of the R-PDSCH channel demodulation performance that the variable density owing to dedicated pilot causes, guaranteed the simple and efficient of scheduling.
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 (14)
1. the sending method of a repeated link downlink data is characterized in that, this method may further comprise the steps:
Relaying Physical Downlink Control Channel R-PDCCH zone and relaying Physical Downlink Shared Channel R-PDSCH zone in same Physical Resource Block PRB adopt the time division multiplexing tdm mode to send downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
2. method according to claim 1 is characterized in that, when the configuration receiver side adopted the public guide frequency demodulation at described R-PDSCH zone downlink data, the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone was not occupied as reservation of resource.
3. method according to claim 1, it is characterized in that, when the configuration receiving terminal adopts the downlink data of dedicated pilot demodulation in described R-PDSCH zone, the Resource Unit that can transmit dedicated pilot in described R-PDCCH zone only transmits dedicated pilot, and it is not occupied as reservation of resource not transmit the resource of dedicated pilot in the described Resource Unit that transmits dedicated pilot.
4. method according to claim 1 is characterized in that, the dedicated pilot that can transmit the Resource Unit transmission of dedicated pilot in described R-PDCCH zone is the dedicated pilot of part port, or is the dedicated pilot of whole ports.
5. the dispensing device of a repeated link downlink data is characterized in that, comprising:
Preserve the unit, be used to preserve the downlink data transmission configuration information;
Transmitting element, be used for according to described transmission of configuration information, R-PDCCH in same PRB zone and R-PDSCH zone employing time division multiplexing tdm mode send downlink data, and the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone does not send downlink data.
6. device according to claim 5 is characterized in that, when receiver side adopted the public guide frequency demodulation at the downlink data that the R-PDSCH zone sends, the Resource Unit that can transmit dedicated pilot in the described R-PDCCH zone was not occupied as reservation of resource.
7. device according to claim 5, it is characterized in that, when receiver side adopts the dedicated pilot demodulation at the downlink data that the R-PDSCH zone sends, described transmitting element, the Resource Unit that is used for can transmitting in described R-PDCCH zone dedicated pilot only transmits dedicated pilot, and it is not occupied as reservation of resource not transmit the resource of dedicated pilot in the described Resource Unit that transmits dedicated pilot.
8. device according to claim 5 is characterized in that, described transmitting element, and the dedicated pilot that is used for can transmitting in described R-PDCCH zone the Resource Unit transmission of dedicated pilot is the dedicated pilot of part port, or is the dedicated pilot of whole ports.
9. the method for reseptance of a repeated link downlink data is characterized in that, this method may further comprise the steps:
Via node equipment carries out the reception of pilot signal according to the pilot configuration that obtains, and carry out the R-PDSCH Channel Detection according to the pilot signal that receives and obtain downlink data, wherein when detecting the R-PDCCH channel, do not detect the Resource Unit that can transmit dedicated pilot in the R-PDCCH zone.
10. method according to claim 9 is characterized in that, if when via node equipment determine to adopt dedicated pilot demodulation R-PDSCH channel, then receives whole dedicated pilots in the current PRB according to the pilot configuration that obtains.
11. method according to claim 9 is characterized in that, if when via node equipment determine to adopt public guide frequency demodulation R-PDSCH channel, then receives whole spendable public guide frequencies in the current PRB according to the pilot configuration that obtains.
12. the receiving system of a repeated link downlink data is characterized in that, comprising:
First receiving element is used for carrying out the reception of pilot signal according to the pilot configuration that obtains;
Second receiving element is used for carrying out the R-PDSCH Channel Detection according to the pilot signal that receives and obtains downlink data, and when detecting the R-PDCCH channel, do not detect the Resource Unit that can transmit dedicated pilot in the R-PDCCH zone.
13. device according to claim 12 is characterized in that, described first receiving element when being used for determine adopting dedicated pilot demodulation R-PDSCH channel, then receives whole dedicated pilots in the current PRB according to the pilot configuration that obtains.
14. device according to claim 12 is characterized in that, described first receiving element when being used for determining to adopt public guide frequency demodulation R-PDSCH channel, then receives whole spendable public guide frequencies in the current PRB according to the pilot configuration that obtains.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100339277A CN102088312A (en) | 2010-01-06 | 2010-01-06 | Method and device for transmitting downlink data of relay link |
| PCT/CN2010/080422 WO2011082643A1 (en) | 2010-01-06 | 2010-12-29 | Method and apparatus for transmitting relay link downlink data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100339277A CN102088312A (en) | 2010-01-06 | 2010-01-06 | Method and device for transmitting downlink data of relay link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102088312A true CN102088312A (en) | 2011-06-08 |
Family
ID=44099941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100339277A Pending CN102088312A (en) | 2010-01-06 | 2010-01-06 | Method and device for transmitting downlink data of relay link |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102088312A (en) |
| WO (1) | WO2011082643A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002509A (en) * | 2011-09-14 | 2013-03-27 | 华为技术有限公司 | Transmission method for controlling signaling and downlink data, base station and user equipment |
| CN103891371A (en) * | 2012-08-13 | 2014-06-25 | 华为技术有限公司 | Pilot signal configuration method, serving base station, and user equipment |
| CN107735976A (en) * | 2015-04-09 | 2018-02-23 | 瑞典爱立信有限公司 | Solves collision signal |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256158B (en) * | 2014-05-23 | 2019-10-25 | 华为技术有限公司 | A kind of pilot frequency collocation method and device |
| WO2019012595A1 (en) * | 2017-07-10 | 2019-01-17 | 株式会社Ｎｔｔドコモ | User terminal and wireless communication method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600003A (en) * | 2001-11-30 | 2005-03-23 | 三星电子株式会社 | Apparatus and method for transmitting and receiving data on packet data control channel |
-
2010
- 2010-01-06 CN CN2010100339277A patent/CN102088312A/en active Pending
- 2010-12-29 WO PCT/CN2010/080422 patent/WO2011082643A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600003A (en) * | 2001-11-30 | 2005-03-23 | 三星电子株式会社 | Apparatus and method for transmitting and receiving data on packet data control channel |
Non-Patent Citations (1)
| Title |
|---|
| CATT: "Design of Relay Backhaul Control Channels in LTE-A", 《3GPP TSG RAN WG1 MEETING #59》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002509A (en) * | 2011-09-14 | 2013-03-27 | 华为技术有限公司 | Transmission method for controlling signaling and downlink data, base station and user equipment |
| CN103002509B (en) * | 2011-09-14 | 2015-11-25 | 华为技术有限公司 | The transmission method of control signal and downlink data and base station, subscriber equipment |
| CN103891371A (en) * | 2012-08-13 | 2014-06-25 | 华为技术有限公司 | Pilot signal configuration method, serving base station, and user equipment |
| CN107735976A (en) * | 2015-04-09 | 2018-02-23 | 瑞典爱立信有限公司 | Solves collision signal |
| US10652877B2 (en) | 2015-04-09 | 2020-05-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Resolving colliding signals |
| CN107735976B (en) * | 2015-04-09 | 2021-02-09 | 瑞典爱立信有限公司 | Method and apparatus for resolving conflicting signals |
| US11115974B2 (en) | 2015-04-09 | 2021-09-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Resolving colliding signals |
| US11700618B2 (en) | 2015-04-09 | 2023-07-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Resolving colliding signals |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011082643A1 (en) | 2011-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10659141B2 (en) | Relay communication system | |
| KR101761624B1 (en) | Method for processing a downlink signal by a relay in a wireless communication system, and an apparatus therefor | |
| KR102047577B1 (en) | Mobile communications system, network element and method for resource allocation on a virtual carrier for machine-type communications with a narrow band epdcch | |
| CN102469589B (en) | Method and device for determining relay link resource element group (REG) | |
| KR100871856B1 (en) | Apparatus and method for providing relay service in broadband wireless access communication system | |
| CN102014503B (en) | Collocation method, detection method and device for relay system control channel | |
| US8761059B2 (en) | Method for transmitting relay node-specific control channel | |
| CN102215507B (en) | Method and system for detecting downlink control channel | |
| CN102422559A (en) | Relay node and method for receiving a signal from a base station in a mobile communication system | |
| KR101430491B1 (en) | Method for transmitting reference signals for relay node | |
| KR101887064B1 (en) | Method for receiving downlink signal and method for transmitting same, user equipment, and base station | |
| CN102870356A (en) | Resource mapping method and apparatus of OFDM system | |
| CN102170646B (en) | Method, system and device for configuring backhaul link resources of relay system | |
| KR20110095060A (en) | Apparatus and method for transmitting and receiving channel state information reference symbol in relay network system | |
| CN101908955A (en) | Downlink information transmission method and device of return link | |
| CN102055689B (en) | Method, system and equipment for transmitting demodulation pilot frequency and demodulating channel on backhaul link | |
| CN102088312A (en) | Method and device for transmitting downlink data of relay link | |
| CN101345568A (en) | Signal forwarding method and device of transparent relay station | |
| CN102457910B (en) | Common search space mapping method of relay node (RN) and apparatus thereof | |
| EP1962542B1 (en) | Apparatus and method for transmitting and receiving control information in multi-hop relay broadband wireless communication system | |
| CN101932077B (en) | Channel processing method and equipment for backhaul control channel | |
| CN102082642B (en) | Method, system and equipment for transmitting and detecting control signaling on backhaul link | |
| KR20110040663A (en) | Wireless communication system for high-speed moving object on fixed route | |
| CN102064929B (en) | Method, device and system for transmitting pilot of backhaul link | |
| WO2019191936A1 (en) | Resource allocation method and device, and computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110608 |