CN102202346A - Method and device for data mapping - Google Patents
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Abstract
The invention discloses a method for data mapping. The method comprises the following steps: network side equipment determines a first time-frequency resource collection which is used to transmit the downlink data of a first receiving node, and determines a second time-frequency resource collection which is used to transmit the downlink control information (DCI) of a second receiving node, wherein the first time-frequency resource collection at least comprises part time-frequency resource of the second time-frequency resource collection; the network side equipment respectively maps the downlink data and the DCI to the corresponding time-frequency resource. In the invention, the downlink control information can be mapped in resource reservation or punching mode, thus avoiding a definition for a new resource unit and reducing the standardized work.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data mapping method and device.
Background
LTE (Long Term Evolution) is the Evolution of 3G (3rd Generation, third Generation mobile communication system), and LTE improves and enhances the 3G over-the-air access technology, and adopts OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple Input Multiple Output) as standards for wireless network Evolution. LTE can provide peak rates of 100Mbit/s downlink and 50Mbit/s uplink under the frequency spectrum bandwidth of 20MHz, thereby improving the performance of cell edge users, improving the cell capacity and reducing the system delay. Technical features of LTE include, among others, high data rate, packet transfer, low latency, wide area coverage, and downward compatibility.
With the rapid growth in the number of mobile end users, the traffic capacity of the end users grows exponentially, and in order to meet the ever-increasing traffic demands of the end users, it is necessary to provide more bandwidth to meet the higher peak rates required by the end users' traffic and applications. That is, in future mobile communication systems, such as in B3G (Beyond third Generation) or LTE-a (LTE-Advanced), the system will provide higher peak data rate and cell throughput, while also requiring larger bandwidth. Currently, unallocated bandwidths below 2GHz are few, a part or all of bandwidths required by an LTE-a system (which is described by taking the LTE-a system as an example) can only be on a higher frequency band, and in practical application, the higher the frequency band is, the faster the radio wave is propagated and attenuated, and the shorter the transmission distance is; i.e. under the same coverage area, more base stations are needed to ensure continuous coverage. Since the base stations have a high cost, the cost of creating a network will increase when many base stations are needed. In order to solve the above problems, various manufacturers and standardization organizations introduce relays (relays) into cellular systems, thereby increasing the area of coverage.
The background information related to the present invention is described below.
(1) An LTE-A system comprising a relay node.
As shown in fig. 1, a schematic diagram of an LTE-a system including a Relay Node is shown, and after an RN (Relay Node) is introduced into the LTE-a system, three radio links of a Relay-based mobile communication system are provided. Wherein, in the LTE-A system with RN introduced:
the corresponding node comprises (1) a Donor-eNB, an eNB with wireless connection with the RN equipment, which is abbreviated as DeNB; (2) relay Node, an entity existing between DeNB and UE (User Equipment), abbreviated as RN device; (3) Relay-UE, UE performing data interaction with RN device, abbreviated as R-UE; (4) and the macro UE is the UE which directly performs data interaction with the DeNB.
The corresponding interfaces comprise (1) a Un interface, an interface between RN equipment and DeNB; (2) uu interface, interface between UE and RN equipment.
The corresponding wireless link comprises (1) a Backhaul link, a Backhaul link and a link corresponding to the Un interface; (2) the Access link is accessed to the link and corresponds to the Uu interface; (3) direct link, and a link for the DeNB to perform data transmission with the macro UE.
In the LTE-a system, orthogonal radio resources are required to be used between the three links in consideration of signal interference limitation of wireless communication. However, since the transceiver of the relay node is in a half-duplex Time Division mode, the backhaul link and the access link occupy different Time slots in a TDD (Time Division Duplexing) frame structure, but the direct link and the backhaul link can coexist at the same Time as long as their Time-frequency resources are orthogonal.
(2) And transmitting downlink of the backhaul link.
As shown in the backhaul downlink transmission diagram of fig. 2, a control region of an MBSFN (multicast broadcast single Frequency Network) subframe occupies 1 or 2 OFDM symbols, and is used for an RN to send a control signal to a UE (R-UE) served by the RN. However, in the Downlink transmission process of the backhaul link, the RN cannot receive a Control region PDCCH (Physical Downlink Control Channel) of the base station, and therefore, the base station needs to create a region in a PDSCH (Physical Downlink Shared Channel) region for transmitting a Control signal to the RN, where the region is called an R-PDCCH (Relay Physical Downlink Control Channel) region.
(3) Multiplexing of R-PDCCH resources.
The R-PDCCH resource may be multiplexed with the data resource in an FDM (Frequency Division Multiplexing) manner or a TDM (Time Division Multiplexing) + FDM manner.
As shown in fig. 3, a schematic diagram of an FDM Resource multiplexing manner is shown, wherein an FDM R-PDCCH region occupies one or more PRBs (Physical Resource blocks) in a frequency domain, and the plurality of PRBs may be discrete or continuous; the FDM R-PDCCH region occupies other OFDM symbols in a subframe except the eNB PDCCH and the transceiving switching in the time domain (the effect of the transceiving switching is not given in the figure, and the switching can be ignored without affecting the conclusion of the present invention), and the FDM resource multiplexing mode occupies more OFDM symbols in the time domain, which causes the longer decoding delay of the R-PDSCH.
As shown in fig. 4, a schematic diagram of a TDM + FDM resource multiplexing manner is shown, where a TDM + FDMR-PDCCH region occupies one or more PRBs in a frequency domain, and the multiple PRBs may be discrete or continuous; the TDM + FDM R-PDCCH region occupies part of OFDM symbols in the first time slot in one subframe in the time domain, and the decoding time is short.
In the process of implementing the invention, the inventor finds that at least the following disadvantages exist in the prior art:
when a TDM + FDM resource multiplexing mode is adopted, the R-PDCCH can only occupy part of OFDM symbols in the first time slot in one subframe, if other OFDM symbols in a PRB are used for scheduling and transmitting the R-PDSCH or PDSCH, the resource unit needs to be redefined, and standardization work is caused when the resource unit is redefined, the processing process is complex, and it may not be possible to schedule and transmit the R-PDSCH or PDSCH using other OFDM symbols in the PRB.
Disclosure of Invention
The invention provides a data mapping method and equipment, which are used for transmitting downlink control information and downlink data corresponding to RN equipment on the premise of avoiding new resource unit definition.
In order to achieve the above object, an embodiment of the present invention provides a data mapping method, including:
the network side equipment determines a first time-frequency resource set for downlink data of a first receiving node; determining a second time frequency resource set for downlink control information DCI of a second receiving node; wherein the first set of time-frequency resources comprises at least a portion of the time-frequency resources in the second set of time-frequency resources;
and the network side equipment maps the downlink data and the DCI to corresponding time frequency resources respectively.
A network-side device, comprising:
a determining module, configured to determine a first time-frequency resource set for downlink data of a first receiving node; determining a second time frequency resource set for downlink control information DCI of a second receiving node, wherein the first time frequency resource set at least comprises part of time frequency resources in the second time frequency resource set;
and the processing module is used for respectively mapping the downlink data and the DCI to corresponding time frequency resources.
A method of data mapping, comprising:
and the RN equipment determines corresponding time-frequency resources according to time-frequency resource information sent by the network side equipment through a high-level signaling, wherein the time-frequency resources are used for transmitting Downlink Control Information (DCI) corresponding to the RN equipment.
A relay device, comprising:
the receiving module is used for receiving time-frequency resource information sent by the network side equipment through the high-level signaling; the time frequency resource is used for transmitting downlink control information DCI corresponding to the RN equipment;
and the determining module is used for determining corresponding time frequency resources according to the time frequency resource information sent by the network side equipment through the high-level signaling.
Compared with the prior art, the invention has at least the following advantages:
in the invention, the downlink control information is mapped in a resource reservation or punching mode, thereby avoiding the definition of a new resource unit and reducing the standardization work.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of an LTE-a system including a relay node in the prior art;
fig. 2 is a diagram of backhaul downlink transmission in the prior art;
FIG. 3 is a diagram illustrating an FDM resource multiplexing method in the prior art;
FIG. 4 is a diagram illustrating a TDM + FDM resource multiplexing method in the prior art;
fig. 5 is a flowchart illustrating a method for mapping data according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a method for mapping data according to a second embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a case where a first time-frequency resource set of downlink data of a relay node includes a second time-frequency resource set of DCI of the relay node in the embodiment of the present invention;
fig. 8 is a schematic diagram of a case where a second set of time-frequency resources of a relay node is in a first set of time-frequency resources of a first receiving node in the embodiment of the present invention;
fig. 9 is a flowchart illustrating a method for mapping data according to a third embodiment of the present invention;
fig. 10 is a flowchart illustrating a method for mapping data according to a fourth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a network-side device according to a fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a relay device according to a sixth embodiment of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a data mapping method, as shown in fig. 5, including the following steps:
it should be noted that, in the embodiment of the present invention, the first receiving node may be a relay node, or may also be a user equipment UE; the second receiving node can only be a relay node, so for the purposes of the description of aspects, the relay node is used in the present invention instead of the second receiving node. In addition, the first set of time-frequency resources does not include physical resources occupied by reference symbols and other physical channels (e.g., broadcast channel PBCH).
In this step, the mapping, by the network side device, the downlink data and the DCI to the corresponding time-frequency resources specifically includes: the network side equipment maps the downlink data of the first receiving node to all time-frequency resources of the first time-frequency resource set; the network side equipment punches data of a first receiving node on a time frequency resource used for transmitting DCI of the second receiving node in the first time frequency resource set; and the network side equipment maps the DCI of the second receiving node to all the time frequency resources of the second time frequency resource set.
Or,
the network side equipment maps the downlink data of the first receiving node to other all time frequency resources except the time frequency resource used for transmitting the DCI of the second receiving node in the first time frequency resource set; and the network side equipment maps the DCI of the second receiving node to all the time frequency resources of the second time frequency resource set.
In the embodiment of the present invention, when a first receiving node is a relay node, the first receiving node is the same as or different from a second receiving node. And when the first receiving node is a user terminal UE, the first receiving node is different from the second receiving node.
It is worth noting that when the first receiving node and the second receiving node are the same, the network side device may map the downlink data and the DCI to the corresponding time-frequency resource by using the two methods; when the first receiving node and the second receiving node are different, the network side device may only map the downlink data and the DCI to the corresponding time-frequency resource in the second manner.
In order to more clearly illustrate the technical solution provided by the present invention, the first embodiment of the present invention and the second embodiment of the present invention provide a method for mapping data, which is described in detail above. As shown in fig. 6, the method further comprises the steps of:
step 601, the network side device allocates a time-frequency resource set for transmitting downlink control information DCI to the relay node, and notifies the time-frequency resource set information to the relay node through a high-level signaling. The Network side device includes, but is not limited to, an RNC (Radio Network Controller), an NB (Node B), an eNB, a base station, and the like, and it should be noted that the Network side device is not limited to the above-mentioned device, and all devices located at the Network side are within the protection scope of the present invention.
Specifically, the network side device allocates a resource set for transmitting the DCI for each serving relay node, where the resource set is a PRB set based on a TDM + FDM multiplexing scheme, and the PRB set is dedicated for the relay node, that is, the PRB set allocated for a relay node is only used for transmitting the DCI of the relay node. The PRB set occupies one or more continuous or discrete PRBs in the time domain; and occupying part of Orthogonal Frequency Division Multiplexing (OFDM) symbols of one subframe in a time domain.
Optimally, only occupying the other OFDM symbols except the PDCCH and the switching time in the first time slot of the backhaul downlink subframe in the time domain.
And the network side equipment respectively informs the PRB set information distributed for each relay node to the corresponding relay node through high-level signaling, wherein the PRB set information comprises frequency domain resource information or time-frequency domain resource information of each PRB.
If the time domain resource information of the PRB set is agreed in advance through the standard, and both the network side equipment and the relay node know the time domain resource information, the network side equipment only needs to inform the frequency domain resource information of the PRB set to the corresponding relay node through a high-level signaling; if the time domain resource of the PRB set is configured by the network side device, at this time, the network side device needs to notify the time domain resource information and the frequency domain resource information of the PRB set to the corresponding relay node through a high layer signaling. The network side equipment can inform the relay node of the frequency domain resource information of the PRB set in a bitmap mode or a direct notification PRB index mode and the like, and can inform the relay node of the time domain resource information of the PRB set in a direct notification time domain OFDM symbol index or a notification starting OFDM symbol index, OFDM symbol number and the like. And the higher layer signaling includes, but is not limited to, RRC (Radio Resource Control) signaling, etc.
Step 602, the network side device determines a first time-frequency resource set of downlink data of the first receiving node and a second time-frequency resource set of DCI of the relay node. The DCI includes, but is not limited to, DL grant (downlink scheduling) information, and most preferably, the DCI only includes the DL grant information.
It should be noted that the first time-frequency resource combination of the downlink data of the first receiving node refers to a time-frequency resource set which is allocated to the first receiving node by the network side device and used for transmitting the downlink data, where the resource set does not include the time-frequency resources occupied by the reference symbols and other channels (e.g., the broadcast channel PBCH), and is a resource actually required to be occupied by downlink data transmission. The second time-frequency resource set of the DCI of the relay node refers to a time-frequency resource set actually required for DCI transmission, and is a subset of the allocated time-frequency resource set for DCI transmission, where the former resource is part or all of the latter resource. If the network side equipment does not need to send DCI to the relay node, the time-frequency resource set allocated to the DCI of the relay node can be used for scheduling and transmitting downlink data of the first receiving node; if the network side equipment needs to send the DCI to the relay contact, the DCI of the relay node needs to occupy part or all of the allocated time-frequency resources, and when the DCI of the relay node only occupies part of the allocated time-frequency resources, other parts of the time-frequency resources can be used for scheduling and transmitting the downlink data of the first receiving node.
Step 603, the network side device maps the downlink data of the first receiving node and the DCI of the relay node to corresponding time frequency resources, respectively.
Specifically, before executing this step, the network side device further needs to acquire a relationship between the first receiving node and the relay node, and the first receiving node and the relay node may be the same or different.
In the first case, as shown in fig. 7, the first receiving node and the relay node are the same, that is, the first time-frequency resource set of the downlink data of the relay node includes the second time-frequency resource set of the DCI thereof.
At this time, the step of the network side device mapping the downlink data and the DCI of the relay node to the corresponding time-frequency resources respectively includes: (1) the network side equipment maps the downlink data of the relay node to all time-frequency resources of a first time-frequency resource set, and the network side equipment punches the downlink data on the time-frequency resources used for transmitting DCI in the first time-frequency resource set and then maps the DCI of the relay node to all time-frequency resources of a second time-frequency resource set; or (2) the network side equipment maps the downlink data of the relay node to all other time frequency resources except the time frequency resources used for transmitting the DCI in the second time frequency resource set, and then maps the DCI of the relay node to all the time frequency resources in the second time frequency resource set.
In the embodiment of fig. 7, the RN1 is both the first receiving node and the relay node, the region of the RN1 PDSCH is the first time-frequency resource set, and the time-frequency resource set actually occupied by the downlink control information of the RN1 is the second time-frequency resource set.
In the second case, as shown in fig. 8, the first receiving node and the relay node are different, that is, the case where the second set of time-frequency resources of the relay node is within the first set of time-frequency resources of the first receiving node.
At this time, the step of the network side device mapping the downlink data and the DCI of the relay node to the corresponding time-frequency resources respectively includes: the network side equipment maps the downlink data of the first receiving node to all time frequency resources of the first time frequency resource set, and the network side equipment punches the data of the first receiving node on the time frequency resources used for transmitting the DCI of the relay node in the first time frequency resource set and then maps the DCI of the relay node to all time frequency resources of the second time frequency resource set.
In the embodiment of fig. 8, RN2 is a first receiving node, RN1 is a second receiving node, that is, a relay node, the RN2PDSCH region is a first time-frequency resource set, and the time-frequency resource set occupied by the downlink control information time of RN1 is a second time-frequency resource set.
In addition, it should be noted that, when the network side device performs DCI and downlink data mapping, the network side device may perform mapping by using a time domain first and a frequency domain second mode, or a frequency domain first and a frequency domain second, or other modes.
Therefore, by using the method provided by the invention, the downlink control information is mapped in a resource reservation or punching mode, the definition of a new resource unit is avoided, and the standardization work is reduced.
It should be noted that the above-mentioned processing procedure is a processing procedure for the network side device, and for the relay device side processing procedure,
an embodiment of the present invention provides a data mapping method, as shown in fig. 9, including the following steps:
The RN equipment determines corresponding time-frequency resources according to the time-frequency resource information sent by the network side equipment through the high-level signaling, and then the RN equipment further comprises the following steps: and the RN equipment blindly detects the DCI corresponding to the RN equipment on the determined time frequency resource.
The method includes that the RN equipment blindly detects DCI corresponding to the RN equipment on the determined time frequency resource, and then the method further includes: and the RN equipment determines the resource position of the downlink data corresponding to the RN equipment according to the detected DCI, and decodes the downlink data at the determined resource position.
Therefore, by using the method provided by the invention, the downlink control information is mapped in a resource reservation or punching mode, the definition of a new resource unit is avoided, and the standardization work is reduced.
In order to more clearly illustrate the technical solution provided by the present invention, for the third embodiment, a fourth embodiment of the present invention provides a method for mapping data, which is described in detail in the above method, and as shown in fig. 10, the method further includes the following steps:
In step 1002, the RN device determines a corresponding time frequency resource according to the time frequency resource information. Namely, the RN equipment determines the PRB set mapped by the downlink control information according to the R-PDCCH PRB set information based on TDM and FDM.
Specifically, if there is no explicit rule to define which determined PRBs the downlink control information needs to be mapped on, the RN device needs to determine the downlink control information on the allocated PRB set through blind detection; however, if it is clearly defined on which determined PRBs the downlink control information needs to be mapped, the RN device needs to directly detect the downlink control information on the determined PRBs.
In step 1003, the RN device determines a resource location of downlink data corresponding to itself according to the detected DCI, and decodes the downlink data at the determined resource location.
Specifically, before executing this step, the relay device further needs to determine a corresponding relationship between the downlink control information and PRB resources of the PDSCH, where the corresponding relationship is specifically: the PRB resource of the PDSCH comprises the resource used by the downlink control information; alternatively, the PRB resources of the PDSCH do not include the resources used by the downlink control information.
Therefore, when determining the R-PDSCH PRB resource information corresponding to itself, two cases are considered:
in the first case, if the R-PDSCH PRB resources allocated for certain RN1 contain the resources actually used by the downlink control information of RN1, RN1 needs to remove the data transmitted on the resources occupied by the downlink control information from the received R-PDSCH data and then decode the remaining data.
In the second case, if the R-PDSCH PRB resources allocated for RN1 do not contain the resources actually used by the downlink control information of RN1, RN1 needs to receive and decode the data transmitted on the R-PDSCH resources, and no special processing is needed.
In addition, it should be noted that, in the case that the RN1R-PDSCH PRB resources do not include the resources actually used by the downlink control information of RN1, if the R-PDSCH or UE PDSCH of another RN is transmitted on another OFDM symbol in the PRB actually used by the downlink control information corresponding to RN1, the other RN device or UE will demodulate the received data and consider that the data transmitted on the resources actually used by the downlink control information is interfered.
Therefore, by using the method provided by the invention, the downlink control information is mapped in a resource reservation or punching mode, the definition of a new resource unit is avoided, and the standardization work is reduced.
An embodiment of the present invention provides a network side device, as shown in fig. 11, including:
a determining module 10, configured to determine a first time-frequency resource set for downlink data of a first receiving node; and determining a second time-frequency resource set for downlink control information DCI of a second receiving node, wherein the first time-frequency resource set at least comprises part of time-frequency resources in the second time-frequency resource set.
And a processing module 20, configured to map the downlink data and the DCI to corresponding time-frequency resources, respectively.
The processing module 20 is specifically configured to map the downlink data of the first receiving node to all time-frequency resources of the first time-frequency resource set; puncturing data of the first receiving node on time-frequency resources used for transmitting DCI of the second receiving node in the first set of time-frequency resources; and mapping the DCI of the second receiving node to all time frequency resources of the second time frequency resource set.
The processing module 20 is specifically configured to map the downlink data of the first receiving node to all other time-frequency resources in the first time-frequency resource set except the time-frequency resource used for transmitting the DCI of the second receiving node; and mapping the DCI of the second receiving node to all time frequency resources of the second time frequency resource set.
Wherein the first receiving node and the second receiving node may be the same or different.
Therefore, by using the equipment provided by the invention, the downlink control information is mapped in a resource reservation or punching mode, the definition of a new resource unit is avoided, and the standardization work is reduced.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
An embodiment of the present invention provides a relay device, as shown in fig. 12, including:
a receiving module 30, configured to receive time-frequency resource information sent by a network side device through a high-level signaling; the time frequency resource is used for transmitting downlink control information DCI corresponding to the RN equipment;
a determining module 40, configured to determine a corresponding time-frequency resource according to the time-frequency resource information sent by the network side device through the high-level signaling.
A detecting module 50, configured to blindly detect DCI corresponding to the determining module 40 on the time-frequency resource determined by the determining module.
A processing module 60, configured to determine a resource location of downlink data corresponding to the processing module according to the DCI detected by the detecting module 50, and decode the downlink data at the determined resource location.
Therefore, by using the equipment provided by the invention, the downlink control information is mapped in a resource reservation or punching mode, the definition of a new resource unit is avoided, and the standardization work is reduced.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (14)
1. A method of data mapping, comprising:
the network side equipment determines a first time-frequency resource set for downlink data of a first receiving node; determining a second time frequency resource set for downlink control information DCI of a second receiving node; wherein the first set of time-frequency resources comprises at least a portion of the time-frequency resources in the second set of time-frequency resources;
and the network side equipment maps the downlink data and the DCI to corresponding time frequency resources respectively.
2. The method of claim 1, wherein the step of the network side device mapping the downlink data and the DCI onto the corresponding time-frequency resources respectively comprises:
the network side equipment maps the downlink data of the first receiving node to all time-frequency resources of the first time-frequency resource set;
the network side equipment punches data of a first receiving node on a time frequency resource used for transmitting DCI of the second receiving node in the first time frequency resource set;
and the network side equipment maps the DCI of the second receiving node to all the time frequency resources of the second time frequency resource set.
3. The method of claim 1, wherein the step of the network side device mapping the downlink data and the DCI onto the corresponding time-frequency resources respectively comprises:
the network side equipment maps the downlink data of the first receiving node to other all time frequency resources except the time frequency resource used for transmitting the DCI of the second receiving node in the first time frequency resource set;
and the network side equipment maps the DCI of the second receiving node to all the time frequency resources of the second time frequency resource set.
4. The method of claim 1, wherein the first receiving node is the same as or different from the second receiving node.
5. A network-side device, comprising:
a determining module, configured to determine a first time-frequency resource set for downlink data of a first receiving node; determining a second time frequency resource set for downlink control information DCI of a second receiving node, wherein the first time frequency resource set at least comprises part of time frequency resources in the second time frequency resource set;
and the processing module is used for respectively mapping the downlink data and the DCI to corresponding time frequency resources.
6. The network-side device of claim 5,
the processing module is further configured to map downlink data of the first receiving node to all time-frequency resources of the first set of time-frequency resources;
puncturing data of the first receiving node on time-frequency resources used for transmitting DCI of the second receiving node in the first set of time-frequency resources;
and mapping the DCI of the second receiving node to all time frequency resources of the second time frequency resource set.
7. The network-side device of claim 5,
the processing module is further configured to map downlink data of the first receiving node to all other time-frequency resources in the first set of time-frequency resources except the time-frequency resource used for transmitting DCI of the second receiving node;
and mapping the DCI of the second receiving node to all time frequency resources of the second time frequency resource set.
8. The network-side device of claim 5, wherein the first receiving node is the same as or different from the second receiving node.
9. A method of data mapping, comprising
And the RN equipment determines corresponding time-frequency resources according to time-frequency resource information sent by the network side equipment through a high-level signaling, wherein the time-frequency resources are used for transmitting Downlink Control Information (DCI) corresponding to the RN equipment.
10. The method of claim 9, wherein the RN device determines the corresponding time-frequency resource according to the time-frequency resource information sent by the network side device through the higher layer signaling, and then further comprising:
and the RN equipment blindly detects the DCI corresponding to the RN equipment on the determined time frequency resource.
11. The method of claim 10, wherein the RN device blindly detects DCI corresponding to the RN device on the determined time-frequency resource, and then further comprising:
and the RN equipment determines the resource position of the downlink data corresponding to the RN equipment according to the detected DCI, and decodes the downlink data at the determined resource position.
12. A relay device, comprising:
the receiving module is used for receiving time-frequency resource information sent by the network side equipment through the high-level signaling; the time frequency resource is used for transmitting downlink control information DCI corresponding to the RN equipment;
and the determining module is used for determining corresponding time frequency resources according to the time frequency resource information sent by the network side equipment through the high-level signaling.
13. The relay device of claim 12, further comprising:
and the detection module is used for blind detecting the DCI corresponding to the detection module on the time frequency resources determined by the determination module.
14. The relay device of claim 13, further comprising:
and the processing module is used for determining the resource position of the downlink data corresponding to the processing module according to the DCI detected by the detection module and decoding the downlink data at the determined resource position.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018024206A1 (en) * | 2016-08-05 | 2018-02-08 | 上海朗帛通信技术有限公司 | Method and device used in low latency communication of user equipment and base station |
| CN109417525A (en) * | 2016-06-17 | 2019-03-01 | Lg 电子株式会社 | The method and user equipment that receive down link signal send method and the base station of down link signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299634A (en) * | 2008-06-19 | 2008-11-05 | 中兴通讯股份有限公司 | Method for transmitting special pilot frequency of LTE system |
| WO2009058906A2 (en) * | 2007-10-30 | 2009-05-07 | Qualcomm Incorporated | Control arrangement and method for communicating paging messages in a wireless communication system |
| CN101516104A (en) * | 2009-04-01 | 2009-08-26 | 华为技术有限公司 | Method for controlling signaling transmission, system, base station and user facility |
-
2010
- 2010-03-22 CN CN201010130925.XA patent/CN102202346B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009058906A2 (en) * | 2007-10-30 | 2009-05-07 | Qualcomm Incorporated | Control arrangement and method for communicating paging messages in a wireless communication system |
| CN101299634A (en) * | 2008-06-19 | 2008-11-05 | 中兴通讯股份有限公司 | Method for transmitting special pilot frequency of LTE system |
| CN101516104A (en) * | 2009-04-01 | 2009-08-26 | 华为技术有限公司 | Method for controlling signaling transmission, system, base station and user facility |
Non-Patent Citations (1)
| Title |
|---|
| SAMSUNG: "DL backhaul design for Type I relay", 《3GPP TSG RAN WG1 MEETING #58BIS R1-094100》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417525A (en) * | 2016-06-17 | 2019-03-01 | Lg 电子株式会社 | The method and user equipment that receive down link signal send method and the base station of down link signal |
| CN109417525B (en) * | 2016-06-17 | 2021-09-03 | Lg 电子株式会社 | Method and apparatus for transmitting and receiving downlink signal |
| US11563609B2 (en) | 2016-06-17 | 2023-01-24 | Lg Electronics Inc. | Method and user equipment for receiving downlink signal, method and base station for transmitting downlink signal |
| US12074742B2 (en) | 2016-06-17 | 2024-08-27 | Lg Electronics Inc. | Method and user equipment for receiving downlink signal, method and base station for transmitting downlink signal |
| WO2018024206A1 (en) * | 2016-08-05 | 2018-02-08 | 上海朗帛通信技术有限公司 | Method and device used in low latency communication of user equipment and base station |
| CN107690188A (en) * | 2016-08-05 | 2018-02-13 | 上海朗帛通信技术有限公司 | It is a kind of be wirelessly transferred in method and apparatus |
| CN107690188B (en) * | 2016-08-05 | 2019-12-24 | 上海朗帛通信技术有限公司 | Method and device in wireless transmission |
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| Publication number | Publication date |
|---|---|
| CN102202346B (en) | 2014-12-10 |
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