CN103095444A - Method and equipment sending and receiving downlink control information based on multi-user multi-input multi-output (MIMO) transmission - Google Patents
Method and equipment sending and receiving downlink control information based on multi-user multi-input multi-output (MIMO) transmission Download PDFInfo
- Publication number
- CN103095444A CN103095444A CN2011103489162A CN201110348916A CN103095444A CN 103095444 A CN103095444 A CN 103095444A CN 2011103489162 A CN2011103489162 A CN 2011103489162A CN 201110348916 A CN201110348916 A CN 201110348916A CN 103095444 A CN103095444 A CN 103095444A
- Authority
- CN
- China
- Prior art keywords
- group
- information
- downlink control
- subscriber equipment
- control information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The invention provides a method and equipment sending and receiving downlink control information based on multi-user multi-input multi-output (MIMO) transmission. The method includes the steps of sending wireless network temporary group identification used for identifying groups, and group internal user equipment specific identification used for identifying user equipment in each group to the user equipment participating in the multi-user MIMO transmission, in one group or a plurality of groups, and sending the downlink control information to the user equipment in the one group or the plurality of groups, wherein the downlink control information comprises public scheduling indication information aiming at the groups, and specific scheduling indication information aiming at the user equipment in the groups, and the user equipment obtains the public scheduling indication information and the specific scheduling indication information from the downlink control information through the wireless network temporary group identification and the group internal user equipment specific identification. Due to the method and the corresponding equipment, data link (DL) control expenses are reduced and whole performance of a communication system is further promoted.
Description
Technical field
Embodiments of the present invention relate generally to wireless communication technology field.More specifically, embodiments of the present invention relate to for the method and apparatus based on multi-user MIMO transmissions sending and receiving Downlink Control Information.
Background technology
In wireless communication system, Physical Downlink Control Channel (PDCCH) is that the up-downgoing transmission of whole communication system distributes various resources, system call is played a part very crucial.Especially, for for example multi-user-advance to have more (MU-MIMO) and multipoint cooperative transmitting/receiving (CoMP) system, the capacity limit of PDCCH produces important impact for the overall performance of MU-MIMO and CoMP more.For example, in the MU-MIMO transmission, many subscriber equipmenies (UE) need to be scheduled on identical subframe to realizing the MU-MIMO gain, but current PDCCH only includes limited number control channel unit (CCE), and almost most these CCE will remain for the license of up link (UL) in advance.In the scene 4 of CoMP transmission, the shortage of PDCCH capacity becomes even more serious than other scenes, because more UE will be scheduled and consume thus more PDCCH bandwidth.
Down link (DL) MIMO performance for Long Term Evolution (LTE-A) system that promotes enhancing, need to consider reduce the control overhead of PDCCH and improve the design of PDCCH, in order to avoid the capacity limit of the DL control area relevant to disposing MU-MIMO/CoMP.The current DL of reducing control overhead is mainly to realize for the size of Downlink Control Information (DCI) form of Physical Downlink Shared Channel (PDSCH) and Physical Uplink Shared Channel (PUSCH) scheduling by reducing.For the UE of the LTERel-8/9/10 with MU-MIMO/CoMP operation, the UE of each pairing (that is, the member in the group of participation MU-MIMO transmission) has its DCI that is used for the scheduling indication separately.Therefore, a plurality of PDCCH that have a corresponding DCI form will be used to take the UE of all pairings of same resource block.For existing DCI form, the many territories in each DCI or field (for example, Resource Block (RB) distribution and carrier wave indication etc.) are all identical.In addition, be attached with the cyclic redundancy check (CRC) of 16 bits for each PDCCH channel.These settings all will consume too much expense, and thus the delivery efficiency of DCI message be caused serious degradation.
In the MU-MIMO transmission, when not having enough orthogonal spaces between a plurality of users of scheduling, multi-user interference (MUI) will produce.The interfere information that other UE that are scheduled simultaneously owing to being short in understanding cause is subjected to UE that this MUI affects will experience the loss of transmission performance.Can know in group or the MUI information (for example precoding or channel condition information) of other UE of pairing if form the UE of group or pairing, this UE can select suitable receiver algorithm to carry out the MUI inhibition.
Therefore, need a kind of method and apparatus based on MU-MIMO transmission transmission DCI in prior art.Utilize the method and equipment, can reduce the DL control overhead, thereby promote the overall performance of communication system, and realize that further MUI suppresses, thereby promote UE transmission rate and throughput of system.
Summary of the invention
In order to solve above-mentioned technical problem, one aspect of the present invention provides a kind of method that sends Downlink Control Information based on multi-user MIMO transmissions, comprising:
Each subscriber equipment in one or more groups of participation multi-user MIMO transmissions sends the user inside the group's device specific identification that is used for identifying the interim group identification of wireless network of this group and is used for identifying each subscriber equipment in group; And
Each subscriber equipment in described one or more groups sends Downlink Control Information, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group, and described public scheduling indication information and particular schedule indication information are obtained from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification by subscriber equipment.
According to an embodiment of the invention, the method further comprises and based on the channel condition information that receives from a plurality of subscriber equipmenies, described subscriber equipment is divided into the one or more groups that participate in multi-user MIMO transmissions.
According to an embodiment of the invention, wherein said public scheduling indication information comprises the information for the indication of the identical carrier wave of each subscriber equipment in group and resource block assignments at least.
According to an embodiment of the invention, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and the method comprises that further the configuration information of the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group carries out the operation of the data demodulates reference signal that produces described each subscriber equipment.
According to an embodiment of the invention, the method further comprises utilizes the interim group identification of described wireless network to carry out the scrambling operation to the cyclic redundancy check information of Downlink Control Information; And each subscriber equipment in described one or more groups sends the Downlink Control Information of the cyclic redundancy check information that is attached with described scrambling.
Another aspect of the present invention provides a kind of method that receives Downlink Control Information based on multi-user MIMO transmissions, comprising:
Reception is by the interim group identification of wireless network of the one or more groups that are used for sign participation multi-user MIMO transmissions of base station transmission with for the user inside the group's device specific identification that identifies each subscriber equipment in group;
The Downlink Control Information that reception is sent by described base station, wherein said Downlink Control Information comprise for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group; And
Obtain described public scheduling indication information and particular schedule indication information by the interim group identification of described wireless network and user inside the group's device specific identification from described Downlink Control Information.
According to an embodiment of the invention, wherein said public scheduling indication information comprises the information for the indication of the identical carrier wave of each subscriber equipment in group and resource block assignments at least.
According to an embodiment of the invention, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and the method further comprises: the configuration information of the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group is carried out demodulation operation to the data demodulated reference signal; Based on described data demodulates reference signal estimation multi-user interference from other subscriber equipmenies in described group in multi-user MIMO transmissions; And the receiver algorithm of selecting to suppress described multi-user interference based on the multi-user interference of estimating.
According to an embodiment of the invention, further comprise receiving the Downlink Control Information that is attached with the cyclic redundancy check information of utilizing the interim group identification scrambling of wireless network; Utilize the interim group identification of described wireless network to the cyclic redundancy check information and executing descrambling operation of scrambling; And based on the cyclic redundancy check information of descrambling, Downlink Control Information is carried out verification operation.
One aspect of the present invention also provides a kind of equipment that sends Downlink Control Information based on multi-user MIMO transmissions, comprising:
Be used for the device that each subscriber equipment in the one or more groups that participate in multi-user MIMO transmissions sends the interim group identification of wireless network that is used for sign this group and is used for user inside the group's device specific identification of each subscriber equipment in sign group; And
Send the device of Downlink Control Information for each subscriber equipment in described one or more groups, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group, and described public scheduling indication information and particular schedule indication information are obtained from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification by subscriber equipment.
Another aspect of the present invention also provides a kind of equipment that receives Downlink Control Information based on multi-user MIMO transmissions, comprising:
Be used for to receive by the base station send be used for sign participate in multi-user MIMO transmissions one or more groups the interim group identification of wireless network and be used for the device of user inside the group's device specific identification of each subscriber equipment in sign group;
Be used for to receive the device of the Downlink Control Information that is sent by described base station, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group; And
Be used for obtaining the device of described public scheduling indication information and particular schedule indication information from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification.
Many aspects of the present invention also provide base station and the subscriber equipment that comprises respectively the said equipment.
Utilize the method and apparatus based on MU-MIMO transmission transmission Downlink Control Information of the present invention, DCI format design by new compactness, reduced the expense of DL control signal in the MU-MIMO transmission, and this DCI format design is compatible mutually with existing DCI form.Further, the MUI information estimator of other UE that can provide based on DCI of the present invention due to each UE in group goes out MUI, thereby can utilize suitable receiver algorithm that this MUI is effectively suppressed.
Description of drawings
According to the detailed description below in conjunction with the illustrative embodiments of accompanying drawing, above and other purpose of the present invention, Characteristics and advantages will become obviously, in the accompanying drawings:
Fig. 1 schematically shows the flow chart that sends the method for DCI according to the transmission based on MU-MIMO of one embodiment of the present invention;
Fig. 2 is the flow chart that the transmission based on MU-MIMO that schematically shows according to the present invention another execution mode receives the method for DCI;
Fig. 3 is the structure chart that schematically shows according to the DCI of one embodiment of the present invention;
Fig. 4 is the detail flowchart based on the method for MU-MIMO transmission sending and receiving DCI that schematically shows according to one embodiment of the present invention;
Fig. 5 schematically shows the block diagram that sends the equipment of DCI according to the transmission based on MU-MIMO of one embodiment of the present invention;
Fig. 6 is the block diagram that the transmission based on MU-MIMO that schematically shows according to the present invention another execution mode receives the equipment of DCI; And
Fig. 7 is illustrated in the performance estimation of the user rate that is compared to prior art that under the example simulation environment, method and apparatus according to the invention realizes.
Embodiment
Basic thought of the present invention is the structure of improving existing DCI, in order to effectively reduce DL control signal expense in the MU-MIMO/CoMP transmission, utilizes simultaneously the information that comprises in this improved DCI to realize effective inhibition to MUI.According to the embodiment of the present invention, (BS) side in the base station, BS divides the interim group identification of wireless network (g-RNTI) that is used in sign this group and is used for UE specific identifier in the group of each UE of the sign form of sequence number (for example, with) to each UE that is in same group.Then, BS sends the DCI of format to each UE, and this DCI comprises for the identical public scheduling indication information of each UE in group and specific to the particular schedule indication information of each UE.In the UE side, utilize the sign that had before received to obtain the scheduling indication information from DCI and suppress to be used for transmitting and scheduling and MUI.
Describe below with reference to the accompanying drawings the specific embodiment of the present invention in detail.
Fig. 1 schematically shows the flow chart that sends the method for DCI according to the transmission based on MU-MIMO of one embodiment of the present invention.As shown in fig. 1, method 100 starts from step S101.In step S102, method 100 sends for the g-RNTI that identifies this group with for the interior UE specific identifier of the group who identifies each UE in group to each UE in one or more groups that participation MU-MIMO transmits.This transmission can realize by high-level signaling (for example Radio Resource is controlled (RRC) signaling) or layer 1 signaling.
In one embodiment, BS can be divided into a plurality of UE based on the channel condition information that receives from a plurality of UE (CSI) the one or more groups that participate in the MU-MIMO transmission.A plurality of UE in same group will carry out the MU-MIMO transmission on identical temporal frequency resource, and different a plurality of groups will carry out the MU-MIMO transmission on different temporal frequency resources.
In one embodiment, in this group, the UE specific identifier can be the sequence number related with g-RNTI.For example, when having four UE in group, can to four UE respectively distributing serial numbers 0,1,2,3 four UE are identified.
Then, in step S103, method 100 sends DCI to each UE in one or more groups, this DCI comprises for the public scheduling indication information of group with for the particular schedule indication information of each UE in group, and public scheduling indication information and particular schedule indication information are obtained from DCI by UE specific identifier in aforementioned g-RNTI and group by UE.
In one embodiment, aforementioned public scheduling indication information comprises the information for the indication of the identical carrier wave of each UE in group and resource block assignments at least.Aforementioned particular schedule indication information comprises transmission power control commands (TPC), new data indication (NDI), mixed automatic retransfer request (HARQ) process number of each UE in the group, the configuration information of data demodulates reference signal (DMRS) at least.
When the particular schedule indication information comprised the configuration information of DMRS, method 100 may further include the operation of carrying out the DMRS that produces each UE according to the configuration information of the DMRS of each UE in g-RNTI and group.
In one embodiment, method 100 may further include utilizes g-RNTI to the CRC information and executing scrambling of DCI operation, and each UE in one or more groups sends the DCI of the CRC information that is attached with scrambling.
At last, method 100 ends at step S104.
Utilize the method 100 of the above-mentioned execution mode of the present invention, by the new DCI form of compactness, need not to send public scheduling indication information with identical content and attached CRC information repeatedly repeated multiple timesly, thereby effectively reduce the expense of descending control signaling.
Fig. 2 is the flow chart that the transmission based on MU-MIMO that schematically shows according to the present invention another execution mode receives the method for DCI.As shown in Figure 2, method 200 starts from step S201.In step S202, method 200 receive by BS send be used for sign participate in the MU-MIMO transmission one or more groups g-RNTI and be used for UE specific identifier in the group of each UE in sign group.As previously mentioned, this reception can realize by high-level signaling or layer 1 signaling of for example RRC.
Then, in step S203, method 200 receives the DCI that is sent by BS, and wherein DCI comprises for the public scheduling indication information of group with for the particular schedule indication information of each UE in group.In one embodiment, aforementioned public scheduling indication information comprises the information for the indication of the identical carrier wave of each UE in group and resource block assignments at least, and aforementioned particular schedule indication information comprises the configuration information of TPC order, NDI, HARQ process number and the DMRS of each UE in the group at least.
After completing steps S203, method 200 advances to step S204, and this prescribing method 200 obtains public scheduling indication information and particular schedule indication information by UE specific identifier in aforementioned g-RNTI and group from DCI.At last, method 200 ends at step S205.
Although it is not shown in Figure 2, in one embodiment, when the particular schedule indication information comprised the configuration information of data demodulates reference signal, method 200 may further include according to the configuration information of the DMRS of each UE in g-RNTI and described group and DMRS is carried out the operation of demodulation.
Then, the MUI of other UE and the receiver algorithm of selecting to suppress MUI based on the MUI that estimates in method 200 is estimated in the MU-MIMO transmission from group based on DMRS.
In another embodiment, method 200 may further include and receives the DCI that is attached with the CRC information of utilizing the g-RNTI scrambling; Utilize g-RNTI to the CRC information and executing descrambling operation of scrambling; And based on the CRC information of descrambling, DCI is carried out verification operation.
By the method 200 of above-mentioned execution mode of the present invention, receive the DCI with new form at the UE place, can reduce to have the public indication information of identical content and the descending control signaling expense that causes of attached CRC information repeatedly owing to repeatedly receiving.Further, from the interfere information of other UE, can select suitable receiver algorithm, thereby MUI is effectively suppressed in transmitting by estimation MU-MIMO.Because those skilled in the art can be by various suitable methods or approach (for example, senior least mean-square error algorithm for estimating) carrying out MUI based on the DMRS information that obtains suppresses, therefore the application does not do too much description at this, in order to unnecessarily obscure the present invention.
Fig. 3 is the structure chart that schematically shows according to the DCI of one embodiment of the present invention.As shown in Figure 3, comprise two parts according to the DCI of embodiment of the present invention, for the common signaling field of group or territory (namely namely, public scheduling indication information) user 1 and user's 2 the specific signaling field of UE or territory and in this group (that is, for each UE in group particular schedule indication information).As can be seen from Figure 3, common signaling field comprises carrier wave indication and resource block assignments at least, at least comprise TPC order, HARQ process number, DMRS configuration information (antenna port, scrambling sign and number of plies indication) and respectively for the link circuit self-adapting information of transmission block 1 and transmission block 2, comprise Modulation and Coding Scheme (MCS), NDI and HARQ redundancy versions (RV) for the specific signaling field of user 1 and user's 2 UE.Here the purpose in order to simplify, only illustrate two specific signaling fields of UE, but those skilled in the art know according to the application's instruction according to need can the specific signaling field of attached more UE.
Fig. 4 schematically shows the detail flowchart based on the method 400 of MU-MIMO transmission sending and receiving DCI according to one embodiment of the present invention.As shown in Figure 4, method 400 starts from step S401, wherein sends separately CSI by a plurality of UE to BS, although a UE only is shown for brevity herein.In step S402, BS is distributed into one or more groups based on the CSI that receives with a plurality of UE.Then, in step S403, BS sends identification information by RRC signaling or layer 1 signaling to the UE of each group, and this identification information comprises the g-RNTI of aforesaid sign this group and is used for the interior UE specific identifier of group of each UE in sign group.
Then, in step S404, BS forms according to new DCI of the present invention according to the result of determination of scheduling and resource distribution, and this DCI has foregoing structure, namely for the public scheduling indication information of group with for the particular schedule indication information of each UE in group.In step S405, BS utilizes g-RNTI carry out scrambling and it is attached to DCI to the CRC information that is used for DCI.Flow process advances to step S406, and herein, BS generates DMRS according to the configuration information of g-RNTI and DMRS.Then, in step S407, BS sends DCI (for example, via existing PDCCH territory or strengthen PDCCH (ePDCCH) territory) and the DMRS of this new form to each UE in each group.The complete processing in the BS side of the above-mentioned steps of method 400.Then, method 400 enters into the handling process of UE side.
At step S408, UE decodes to DCI by utilizing the g-RNTI that before received that UE specific search volume is searched for, and completes verification operation comprising the DCI that utilizes g-RNTI that CRC is carried out descrambling operation and utilizes the CRC information butt joint to receive.Then, at step S409, the g-RNTI that UE receives utilization and the specific identifier of himself read public scheduling indication information and the particular schedule indication information in DCI information, separate and are in harmonious proportion the PDSCH demodulation in order to carry out follow-up DMRS.
Then, in step S410, based on the DMRS configuration information of other UE in the described UE that obtains and group, the DMRS of other UE in the DMRS of described UE and group is carried out demodulation operation.In step S411, DMRS by other UE in demodulation group can be known the information (for example precoding or CSI information) that is caused MUI by other UE, thereby UE can select suitable receiver algorithm that MUI is suppressed based on the interfere information that obtains.For example, UE can select senior Minimum Mean Square Error (MMSE) receiver algorithm to carry out PDSCH and decode to suppress MUI.In this case, the throughput performance of UE can further be promoted.
By the method 400 of above-mentioned execution mode of the present invention, the DCI of format has reduced to have the public indication information of identical content and the descending control signaling expense that causes of attached CRC information repeatedly owing to repeatedly sending.Simultaneously, in transmitting by estimation MU-MIMO, from the MUI of other UE, UE can select suitable receiver algorithm in advance, thereby realizes the effective inhibition to MUI.In addition, above-mentioned flow sequence is only exemplary, and under without departing the teaching of the invention, those skilled in the art can change it as required.
Fig. 5 schematically shows the block diagram that sends the equipment 500 of DCI according to the transmission based on MU-MIMO of one embodiment of the present invention.This equipment 500 comprises the first dispensing device 501 and the second dispensing device 502.in equipment 500, the first dispensing device 501 sends for the g-RNTI that identifies this group with for the interior UE specific identifier (being the step S102 of manner of execution 100) of the group who identifies each UE in group for each UE in one or more groups of transmitting to participation MU-MIMO, the second dispensing device 502 sends DCI for each UE in one or more groups, wherein DCI comprises for the public scheduling indication information of group with for the particular schedule indication information of each UE in group, and public scheduling indication information and particular schedule indication information obtain (being the step S103 in manner of execution 100) by UE by UE specific identifier in g-RNTI and group from DCI.Can find out, can realize the method 100 shown in Fig. 1 by actuating equipment 500.
The transmission based on MU-MIMO that Fig. 6 schematically shows according to the present invention another execution mode sends the block diagram of the equipment 600 of DCI.This equipment 600 comprises first receiving device 601, the second receiving system 602 and deriving means 603.in equipment 600, first receiving device 601 be used for receiving by BS send be used for sign participate in the MU-MIMO transmission one or more groups g-RNTI and be used for UE specific identifier (being the step S202 of manner of execution 200) in the group of each UE in sign group, the second receiving system 602 is used for receiving the DCI that is sent by BS, wherein DCI comprises for the public scheduling indication information of group with for the particular schedule indication information (being the step S203 in manner of execution 200) of each UE in group, deriving means 603 is used for obtaining public scheduling indication information and particular schedule indication information (being the step S204 manner of execution 200) by UE specific identifier in described g-RNTI and group from DCI.Can find out, can realize the method 200 shown in Fig. 2 by actuating equipment 600.
Fig. 7 is illustrated in the performance estimation of the user rate that is compared to prior art that under the example simulation environment, method and apparatus according to the invention realizes.In this example simulation environment, without loss of generality, supposing has 25 UE in each residential quarter, and each BS disposes 4 antennas, and each UE respectively disposes 2 antennas, adopts positive and negative 45 degree cross polarised antennas.For brevity, only assess the situation of each UE single-stream transmission here.With regard to receiver, existing scheme adopts the MMSE receiver usually, and the present invention can select to adopt senior MMSE receiver to come for suppressing MUI by new DCI form.Under above-mentioned assumed condition, can find out from " multi-user MIMO transmissions speed " simulation result figure of Fig. 7, under identical cumulative probability Distribution Value, adopt user's (being UE) speed of the inventive method or equipment apparently higher than existing scheme.Similarly, also can find out by the emulation statistics in following table, by adopting new DCI form of the present invention, reduced the descending control signaling expense except effective, also obtained system Mean Speed and the edge customer speed larger than prior art owing to effectively suppressing MUI.
Although the form with accompanying drawing does not illustrate, but those skilled in the art are according to the open or instruction of this specification, be appreciated that method 100 of the present invention, 200 or equipment 500,600 can realize on corresponding BS or UE, thereby realize forming new DCI and realize inhibition to MUI by this DCI.
To sum up, by reference to the accompanying drawings each execution mode of the present invention is described in detail.It will be appreciated by those skilled in the art that embodiments of the present invention can be by hardware, software, firmware, module or its in conjunction with realizing, embody the present invention in also can be on the signal bearing medium for any suitable data treatment system set computer program.The sort signal bearing medium can be transmission medium or the recordable media that is used for machine sensible information, comprises magnetizing mediums, light medium or other suitable media.The example of recordable media comprises: the disk in hard disk drive or floppy disk, be used for CD, the tape of CD-ROM drive and thinkable other media of those skilled in the art.One skilled in the art would recognize that any communication terminal with suitable programmed device all can carry out the step as the inventive method that embodies in program product.
Should be noted that for the present invention is more readily understood, top description has been omitted to be known for a person skilled in the art and may to be essential some ins and outs more specifically for realization of the present invention.
Although disclose specific implementations of the present invention, it will be appreciated by those skilled in the art that and to make a change and can not depart from the spirit and scope of the present invention for specific execution mode.Therefore, the invention is not restricted to specific execution mode, and claims comprise any and all such application, modification and execution mode in the scope of the invention.
Claims (20)
1. method that sends Downlink Control Information based on multi-user MIMO transmissions comprises:
Each subscriber equipment in one or more groups of participation multi-user MIMO transmissions sends the user inside the group's device specific identification that is used for identifying the interim group identification of wireless network of this group and is used for identifying each subscriber equipment in group; And
Each subscriber equipment in described one or more groups sends Downlink Control Information, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group, and described public scheduling indication information and particular schedule indication information are obtained from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification by subscriber equipment.
2. method according to claim 1 further comprises:
Based on the channel condition information that receives from a plurality of subscriber equipmenies, described subscriber equipment is divided into the one or more groups that participate in multi-user MIMO transmissions.
3. method according to claim 1, wherein said public scheduling indication information comprise at least for the identical carrier wave indication of each subscriber equipment in group and the information of resource block assignments.
4. method according to claim 1, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and described method further comprises:
The configuration information of the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group is carried out the operation of the data demodulates reference signal that produces described each subscriber equipment.
5. method according to claim 1 further comprises:
Utilize the interim group identification of described wireless network to carry out the scrambling operation to the cyclic redundancy check information of Downlink Control Information; And
Each subscriber equipment in described one or more groups sends the Downlink Control Information of the cyclic redundancy check information that is attached with described scrambling.
6. method that receives Downlink Control Information based on multi-user MIMO transmissions comprises:
Reception is by the interim group identification of wireless network of the one or more groups that are used for sign participation multi-user MIMO transmissions of base station transmission with for the user inside the group's device specific identification that identifies each subscriber equipment in group;
The Downlink Control Information that reception is sent by described base station, wherein said Downlink Control Information comprise for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group; And
Obtain described public scheduling indication information and particular schedule indication information by the interim group identification of described wireless network and user inside the group's device specific identification from described Downlink Control Information.
7. method according to claim 6, wherein public scheduling indication information comprises at least for the identical carrier wave indication of each subscriber equipment in group and the information of resource block assignments.
8. method according to claim 6, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and described method further comprises:
The configuration information of the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group is carried out demodulation operation to the data demodulated reference signal;
Based on described data demodulates reference signal estimation multi-user interference from other subscriber equipmenies in described group in multi-user MIMO transmissions; And
Select to suppress the receiver algorithm of described multi-user interference based on the multi-user interference of estimating.
9. method according to claim 6 further comprises:
Reception is attached with the Downlink Control Information of the cyclic redundancy check information of utilizing the interim group identification scrambling of wireless network;
Utilize the interim group identification of described wireless network to the cyclic redundancy check information and executing descrambling operation of scrambling; And
Cyclic redundancy check information based on descrambling is carried out verification operation to Downlink Control Information.
10. equipment that sends Downlink Control Information based on multi-user MIMO transmissions comprises:
Be used for the device that each subscriber equipment in the one or more groups that participate in multi-user MIMO transmissions sends the interim group identification of wireless network that is used for sign this group and is used for user inside the group's device specific identification of each subscriber equipment in sign group; And
Send the device of Downlink Control Information for each subscriber equipment in described one or more groups, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group, and described public scheduling indication information and particular schedule indication information are obtained from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification by subscriber equipment.
11. equipment according to claim 10 further comprises:
The channel condition information that is used for receiving based on a plurality of subscriber equipmenies is divided into described a plurality of subscriber equipmenies in the device of the one or more groups that participate in multi-user MIMO transmissions.
12. equipment according to claim 10, wherein said public scheduling indication information comprise the information for the indication of the identical carrier wave of each subscriber equipment in group and resource block assignments at least.
13. equipment according to claim 10, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and described equipment further comprises:
The configuration information that is used for the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group produces the device of the data demodulates reference signal of described each subscriber equipment.
14. equipment according to claim 10 further comprises:
Be used for utilizing the interim group identification of described wireless network the cyclic redundancy check information of Downlink Control Information to be carried out the device of scrambling operation; And
Send the device of the Downlink Control Information of the cyclic redundancy check information that is attached with described scrambling for each subscriber equipment in described one or more groups.
15. an equipment that receives Downlink Control Information based on multi-user MIMO transmissions comprises:
Be used for to receive by the base station send be used for sign participate in multi-user MIMO transmissions one or more groups the interim group identification of wireless network and be used for the device of user inside the group's device specific identification of each subscriber equipment in sign group;
Be used for to receive the device of the Downlink Control Information that is sent by described base station, wherein said Downlink Control Information comprises for the public scheduling indication information of group with for the particular schedule indication information of each subscriber equipment in group; And
Be used for obtaining the device of described public scheduling indication information and particular schedule indication information from described Downlink Control Information by the interim group identification of described wireless network and user inside the group's device specific identification.
16. equipment according to claim 15, wherein said public scheduling indication information comprise the information for the indication of the identical carrier wave of each subscriber equipment in group and resource block assignments at least.
17. equipment according to claim 15, wherein said particular schedule indication information comprises the transmission power control commands, new data indication, hybrid automatic repeat request process number of each subscriber equipment in the group, the configuration information of data demodulates reference signal at least, and described equipment further comprises:
The configuration information that is used for the data demodulates reference signal of each subscriber equipment in group identification interim according to wireless network and described group is carried out the device of demodulation to the data demodulated reference signal;
Be used for estimating at the device of multi-user MIMO transmissions from the multi-user interference of other subscriber equipmenies in described group based on described data demodulates reference signal; And
Be used for selecting based on the multi-user interference of described estimation the device of the receiver algorithm of the described multi-user interference of inhibition.
18. equipment according to claim 15 further comprises:
Be used for receiving the device of the Downlink Control Information that is attached with the cyclic redundancy check information of utilizing the interim group identification scrambling of wireless network;
Be used for utilizing the interim group identification of described wireless network to the device of the cyclic redundancy check information and executing descrambling operation of scrambling; And
Be used for described Downlink Control Information being carried out the device of verification operation based on the cyclic redundancy check information of described descrambling.
19. a base station comprises according to claim 10-14 the described equipment of any one.
20. a subscriber equipment comprises according to claim 15-18 the described equipment of any one.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110348916.2A CN103095444B (en) | 2011-11-07 | 2011-11-07 | Based on the method and apparatus of multi-user MIMO transmissions sending and receiving Downlink Control Information |
| PCT/IB2012/002425 WO2013068834A1 (en) | 2011-11-07 | 2012-10-31 | Method and apparatus for transmitting and receiving downlink control information based on multi-user mimo transmission |
| TW101141199A TWI486006B (en) | 2011-11-07 | 2012-11-06 | Method and apparatus for transmitting and receiving downlink control information based on multiuser MIMO transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110348916.2A CN103095444B (en) | 2011-11-07 | 2011-11-07 | Based on the method and apparatus of multi-user MIMO transmissions sending and receiving Downlink Control Information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103095444A true CN103095444A (en) | 2013-05-08 |
| CN103095444B CN103095444B (en) | 2016-05-11 |
Family
ID=47594929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110348916.2A Active CN103095444B (en) | 2011-11-07 | 2011-11-07 | Based on the method and apparatus of multi-user MIMO transmissions sending and receiving Downlink Control Information |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103095444B (en) |
| TW (1) | TWI486006B (en) |
| WO (1) | WO2013068834A1 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581693A (en) * | 2013-10-18 | 2015-04-29 | 上海贝尔股份有限公司 | Method and device for providing dynamic assistance information in communication system |
| WO2016134528A1 (en) * | 2015-02-27 | 2016-09-01 | 华为技术有限公司 | Method and apparatus for transmitting downlink control information |
| CN106487433A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | For transmitting device and the system of multiuser MIMO control information |
| CN106488573A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
| CN106488572A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
| CN106488562A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | For transmitting device and the system of multiuser MIMO control information |
| CN107210833A (en) * | 2014-10-31 | 2017-09-26 | 阿尔卡特朗讯 | Interference for entering/having more (MIMO) communication multi-user more is eliminated and suppressed |
| WO2018028657A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Data sending method, and signaling sending method, apparatus and system |
| CN107736065A (en) * | 2015-06-30 | 2018-02-23 | 华为技术有限公司 | A kind of resource allocation information indicating means, base station and user equipment |
| CN107800509A (en) * | 2016-09-02 | 2018-03-13 | 北京信威通信技术股份有限公司 | A kind of feedback of descending control signaling and repeating method and system |
| CN107872290A (en) * | 2016-09-26 | 2018-04-03 | 电信科学技术研究院 | A kind of mark UE method, network side equipment, UE and system |
| WO2019154390A1 (en) * | 2018-02-11 | 2019-08-15 | 索尼公司 | Apparatus and method in wireless communication system, and computer-readable storage medium |
| CN112312552A (en) * | 2019-07-31 | 2021-02-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN112636871A (en) * | 2015-05-13 | 2021-04-09 | 华为技术有限公司 | Network node, user equipment and method thereof |
| CN113365350A (en) * | 2020-03-06 | 2021-09-07 | 中国移动通信有限公司研究院 | Information indication method, device, equipment and storage medium |
| CN114979971A (en) * | 2016-07-14 | 2022-08-30 | 富士通株式会社 | Group communication device, method and communication system |
| US20230035330A1 (en) * | 2017-05-22 | 2023-02-02 | Teko Telecom S.R.L. | Wireless communication system and related method for processing uplink fronthaul data |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038963A (en) * | 2013-03-06 | 2014-09-10 | 株式会社Ntt都科摩 | Method and device for transmitting control information in wireless communication system |
| WO2015149213A1 (en) | 2014-03-31 | 2015-10-08 | Panasonic Intellectual Property Corporation Of America | Interference parameter signaling for efficient interference cancellation and suppression |
| US10149318B2 (en) * | 2014-09-02 | 2018-12-04 | Qualcomm Incorporated | Techniques for transmitting and receiving downlink control information for a set of NOMA downlink transmissions |
| DE102016103103B4 (en) | 2015-03-26 | 2024-03-07 | Intel Corporation | High performance (HE) station, computer readable medium and method for group resource allocation signaling in wireless local area networks (WLAN) |
| GB2562109A (en) * | 2017-05-05 | 2018-11-07 | Tcl Communication Ltd | Methods, radio network node and user equipment for managing control information |
| CN109152074A (en) * | 2017-06-16 | 2019-01-04 | 中兴通讯股份有限公司 | Data transmission method and device |
| GB2577533B (en) * | 2018-09-27 | 2020-10-21 | Tcl Communication Ltd | Transmission techniques for a wireless communication system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646229A (en) * | 2008-08-04 | 2010-02-10 | 中兴通讯股份有限公司 | Method for acquiring transmission power control command, acquisition preprocessing method, and mobile terminal |
| WO2010019340A1 (en) * | 2008-08-15 | 2010-02-18 | Interdigital Patent Holdings, Inc. | Method and apparatus for implementing network coding in a long term evolution advanced system |
| WO2010086715A1 (en) * | 2009-01-30 | 2010-08-05 | Nokia Corporation | Multiple user mimo interference suppression communications system and methods |
| CN101982001A (en) * | 2008-03-27 | 2011-02-23 | 高通股份有限公司 | Methods of sending control information for users sharing the same resource |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8260356B2 (en) * | 2009-06-18 | 2012-09-04 | Samsung Electronics Co., Ltd. | Method and system for indicating method used to scramble dedicated reference signals |
-
2011
- 2011-11-07 CN CN201110348916.2A patent/CN103095444B/en active Active
-
2012
- 2012-10-31 WO PCT/IB2012/002425 patent/WO2013068834A1/en active Application Filing
- 2012-11-06 TW TW101141199A patent/TWI486006B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982001A (en) * | 2008-03-27 | 2011-02-23 | 高通股份有限公司 | Methods of sending control information for users sharing the same resource |
| CN101646229A (en) * | 2008-08-04 | 2010-02-10 | 中兴通讯股份有限公司 | Method for acquiring transmission power control command, acquisition preprocessing method, and mobile terminal |
| WO2010019340A1 (en) * | 2008-08-15 | 2010-02-18 | Interdigital Patent Holdings, Inc. | Method and apparatus for implementing network coding in a long term evolution advanced system |
| WO2010086715A1 (en) * | 2009-01-30 | 2010-08-05 | Nokia Corporation | Multiple user mimo interference suppression communications system and methods |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581693A (en) * | 2013-10-18 | 2015-04-29 | 上海贝尔股份有限公司 | Method and device for providing dynamic assistance information in communication system |
| CN104581693B (en) * | 2013-10-18 | 2019-01-22 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of dynamic auxiliary information are provided in communication system |
| CN107210833A (en) * | 2014-10-31 | 2017-09-26 | 阿尔卡特朗讯 | Interference for entering/having more (MIMO) communication multi-user more is eliminated and suppressed |
| CN107210833B (en) * | 2014-10-31 | 2019-03-12 | 阿尔卡特朗讯 | More enter/have more the method that the interference of (MIMO) communication is eliminated and inhibited for multi-user |
| TWI618376B (en) * | 2014-10-31 | 2018-03-11 | 阿爾卡特朗訊公司 | Interference cancellation and suppression for multi-user multiple-in/multiple out (mimo) communication |
| CN107409295B (en) * | 2015-02-27 | 2020-04-28 | 华为技术有限公司 | Method and device for transmitting downlink control information |
| US10264601B2 (en) | 2015-02-27 | 2019-04-16 | Huawei Technologies Co., Ltd. | Downlink control information transmission method and apparatus |
| CN107409295A (en) * | 2015-02-27 | 2017-11-28 | 华为技术有限公司 | The method and apparatus for transmitting Downlink Control Information |
| WO2016134528A1 (en) * | 2015-02-27 | 2016-09-01 | 华为技术有限公司 | Method and apparatus for transmitting downlink control information |
| CN112636871A (en) * | 2015-05-13 | 2021-04-09 | 华为技术有限公司 | Network node, user equipment and method thereof |
| CN112636871B (en) * | 2015-05-13 | 2022-05-17 | 华为技术有限公司 | Network node, user equipment and method thereof |
| CN107736065A (en) * | 2015-06-30 | 2018-02-23 | 华为技术有限公司 | A kind of resource allocation information indicating means, base station and user equipment |
| US10420092B2 (en) | 2015-06-30 | 2019-09-17 | Huawei Technologies, Co., Ltd. | Resource allocation information indication method, base station, and user equipment |
| CN107736065B (en) * | 2015-06-30 | 2020-09-04 | 华为技术有限公司 | Resource allocation information indication method, base station, user equipment and storage medium |
| CN106488572A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
| CN106488562A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | For transmitting device and the system of multiuser MIMO control information |
| CN106488573A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | The control information method of sending and receiving of the multiuser MIMO of supercomposed coding |
| CN106487433A (en) * | 2015-08-31 | 2017-03-08 | 北京信威通信技术股份有限公司 | For transmitting device and the system of multiuser MIMO control information |
| CN114979971B (en) * | 2016-07-14 | 2024-04-05 | 富士通株式会社 | Group communication device, method and communication system |
| CN114979971A (en) * | 2016-07-14 | 2022-08-30 | 富士通株式会社 | Group communication device, method and communication system |
| US10924201B2 (en) | 2016-08-12 | 2021-02-16 | Huawei Technologies Co., Ltd. | Data sending method, signaling sending method, apparatus, and system |
| WO2018028657A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Data sending method, and signaling sending method, apparatus and system |
| CN107800509A (en) * | 2016-09-02 | 2018-03-13 | 北京信威通信技术股份有限公司 | A kind of feedback of descending control signaling and repeating method and system |
| CN107872290B (en) * | 2016-09-26 | 2021-03-19 | 电信科学技术研究院 | Method for identifying UE, network side equipment, UE and system |
| CN107872290A (en) * | 2016-09-26 | 2018-04-03 | 电信科学技术研究院 | A kind of mark UE method, network side equipment, UE and system |
| US11962369B2 (en) * | 2017-05-22 | 2024-04-16 | Teko Telecom S.R.L. | Wireless communication system and related method for processing uplink fronthaul data |
| US20230035330A1 (en) * | 2017-05-22 | 2023-02-02 | Teko Telecom S.R.L. | Wireless communication system and related method for processing uplink fronthaul data |
| WO2019154390A1 (en) * | 2018-02-11 | 2019-08-15 | 索尼公司 | Apparatus and method in wireless communication system, and computer-readable storage medium |
| CN112312552B (en) * | 2019-07-31 | 2022-05-24 | 华为技术有限公司 | Data transmission method, device and system |
| CN112312552A (en) * | 2019-07-31 | 2021-02-02 | 华为技术有限公司 | Data transmission method, device and system |
| CN113365350B (en) * | 2020-03-06 | 2023-09-22 | 中国移动通信有限公司研究院 | Information indication method, device, equipment and storage medium |
| CN113365350A (en) * | 2020-03-06 | 2021-09-07 | 中国移动通信有限公司研究院 | Information indication method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI486006B (en) | 2015-05-21 |
| WO2013068834A1 (en) | 2013-05-16 |
| TW201325120A (en) | 2013-06-16 |
| CN103095444B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103095444B (en) | Based on the method and apparatus of multi-user MIMO transmissions sending and receiving Downlink Control Information | |
| US10142053B2 (en) | Method and apparatus for transmitting control information to remove and suppress interference in wireless communication system | |
| TWI692268B (en) | Location and listen-before-schedule based resource allocation for vehicle-to-vehicle communication | |
| US9839026B2 (en) | Method for transmitting and receiving control information of a mobile communication system | |
| US9621242B2 (en) | Downlink control signalling for indication of interfering layers | |
| CN103178942B (en) | Signal transmission method, base station and subscriber equipment | |
| US9571241B2 (en) | Methods for transmitting and receiving control information using time-frequency resources of decoding candidates | |
| CN107710721B (en) | Information processing method, device and system | |
| CN103959730B (en) | Method and apparatus for sending and receiving data in a wireless communication system | |
| CN104584450A (en) | Communicating channel state information (CSI) of multiple transmission points | |
| CN103636152A (en) | Method and apparatus for reducing co-channel interference | |
| US10356771B2 (en) | Method and device for transmitting downlink information in wireless communication system | |
| CN104885554A (en) | Reference signal measurement for device-to-device communication | |
| CN104604314A (en) | Systems and methods for semi-persistent scheduling of wireless communications | |
| CN104885398A (en) | Method and apparatus for device-to-device communication | |
| TW201739290A (en) | Downlink control for demodulation reference signal transmissions | |
| KR20180011776A (en) | Non-orthogonal multiple access between a unicast signal and a multicast signal | |
| CN104935396A (en) | Signaling notification method and system for interference elimination or suppression, and receiving method and device | |
| CN112788732B (en) | Method and device used for wireless communication | |
| WO2014011323A2 (en) | Enhancing coordinated multi-point processing transmission through resource element muting | |
| CN115412226A (en) | Method and apparatus in a node used for wireless communication | |
| US20180146436A1 (en) | Signal sending method, signal demodulation method, device, and system | |
| WO2020225825A1 (en) | Method for wireless communication using beamformed physical downlink control channel (pdcch) | |
| EP3411959B1 (en) | Terminal device, infrastructure equipment, methods and integrated circuitry | |
| CN107534863A (en) | The method, apparatus and equipment of scheduling of resource |
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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |