CN102448175B - The method of Resources allocation block group and device in a kind of long evolving system - Google Patents
The method of Resources allocation block group and device in a kind of long evolving system Download PDFInfo
- Publication number
- CN102448175B CN102448175B CN201210016270.2A CN201210016270A CN102448175B CN 102448175 B CN102448175 B CN 102448175B CN 201210016270 A CN201210016270 A CN 201210016270A CN 102448175 B CN102448175 B CN 102448175B
- Authority
- CN
- China
- Prior art keywords
- rbg
- time slot
- terminal
- enodeb
- rbgs
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000007774 longterm Effects 0.000 claims abstract description 4
- 238000013468 resource allocation Methods 0.000 claims description 33
- 238000005562 fading Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 45
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses the method for Resources allocation block group (RBG) in a kind of Long Term Evolution (LTE) system, comprise: the RBG service condition indicating (CQI) information and self record according to the channel quality received, for sending the RBG in the terminal distribution time slot one of CQI information and/or time slot two, new Downlink Control Information (DCI) form is used RBG allocation result to be programmed in DCI.The present invention also also discloses the device distributing RBG in a kind of LTE system, employing the present invention can according to the RST of the time slot of two in common subframe, be respectively two time slot allocation RBG of common subframe, promote the anti-fading property of LTE system, and then improve the performance of whole system.
Description
Technical Field
The present invention relates to a Resource allocation technique in a Long Term Evolution (LTE) system in the field of wireless communication, and in particular, to a method and an apparatus for allocating Resource Block Groups (RBGs) in an LTE system.
Background
The LTE project in The third Generation partnership project (3 GPP) in The field of wireless communication is an evolution of 3G, improves and enhances The 3G over-The-air Access technology, and adopts a technology with Orthogonal Frequency Division Multiplexing (OFDM)/Frequency Division Multiple Access (FDMA) as a core.
In the LTE technology, a scheduling unit is one subframe, i.e., 1ms, and the subframe has two structures: the method comprises the steps that a common subframe and a special subframe are adopted, wherein the common subframe comprises two time slots, each time slot is 0.5ms, and the two time slots in the common subframe are respectively called a time slot I and a time slot II according to the time sequence of each time slot; the special subframe includes three special slots. When uplink/downlink service transmission is carried out in each common subframe, the RBG is used as a basic physical resource unit for distribution; the RBG is composed of a plurality of Physical Resource Blocks (PRBs), and one PRB is 180kHz wide in frequency domain.
The method for an evolved node B (eNodeB) to distribute RBGs for any terminal managed by the eNodeB in the LTE system comprises the following steps: an eNodeB allocates RBGs of a first time slot and a second time slot to a terminal sending Channel Quality Indicator (CQI) information in pairs according to a resource allocation algorithm specified by a protocol; the eNodeB notifies the terminal of the RBG allocation result through Downlink Control Information (DCI), and the terminal receives and transmits uplink and Downlink service data at the designated RBG position according to the DCI. The eNodeB informs the terminal of the RBG distribution result through DCI, and the method comprises the following steps: the eNodeB selects a corresponding DCI format according to the transmission mode of the terminal, and writes the RBG allocation result of the terminal in a Resource Block Assignment (RBA) field in the DCI; the DCI is sent to the terminal through a Physical Downlink Control Channel (PDCCH). The corresponding DCI format is selected according to the transmission mode of the terminal, and the transmission mode and the DCI format are associated by the eNodeB according to a protocol, for example: the DCI format corresponding to transmission mode 2 is DCI 1 a.
However, in the method for allocating RBGs, RBGs in timeslot one and timeslot two are allocated in pairs, so the eNodeB cannot flexibly allocate RBGs for two timeslots according to the signal quality of two timeslots in each normal subframe in CQI information, so that the case where the signal quality is good when a specified RBG is used in one timeslot and the signal quality is poor when a specified RGB resource is used in another timeslot occurs, and thus, once signal fading occurs, the quality of the received signal in the timeslot with poor signal quality is affected, and further the system performance is affected.
It can be seen that, in the existing method for allocating an RBG to any terminal managed by an eNodeB in an LTE system, the existing LTE system cannot improve fading resistance due to the inability to flexibly allocate RBGs to two time slots according to different signal quality conditions of the two time slots in a common subframe, thereby affecting the performance of the entire system.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method and an apparatus for allocating RBGs in an LTE system, which allocate RBGs to two timeslots of a normal subframe according to signal conditions of the two timeslots in the normal subframe, so as to improve fading resistance of the LTE system and further improve performance of the entire system.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for allocating RBGs in an LTE system, which comprises the following steps:
and allocating RBGs in the first time slot and/or the second time slot for the terminal sending the CQI information according to the received CQI information and the self-recorded RBG use condition, and writing the RBG allocation result in the DCI by using a new DCI format.
In the above solution, before the receiving the CQI information and the RBG usage recorded by the method, the method further includes: setting a new DCI format, specifically: adding a Time Slot Indicator (TSI) field before an RBA field in a DCI format, wherein other fields in the DCI format are set according to the specification of the existing protocol;
wherein, the TSI field is used for indicating the time slot corresponding to the allocated RBG.
In the above solution, the allocating RBGs in slot one and/or slot two to the terminal sending the CQI information according to the received CQI information and the usage of RBGs recorded by the terminal, includes:
checking whether the corresponding RBG in the first time slot is idle according to the frequency band with good signal quality of the terminal sending the CQI information recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the first time slot and whether the requirement of the terminal sending the CQI information is met, and if so, allocating the RBG of the first time slot to the terminal;
if the RBG corresponding to the frequency band with good signal quality of the terminal in the first time slot is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the first time slot does not meet the requirement of the terminal, checking whether the corresponding RBG in the second time slot is idle or not according to the frequency band with good signal quality of the terminal which is recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the second time slot and whether the requirement of the terminal which sends the CQI information is met or not, and if so, allocating the RBG of the second time slot to the terminal;
and if the RBG corresponding to the frequency band with good signal quality of the terminal in the time slot II is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the time slot II does not meet the requirement of the terminal, the RBGs in the time slot I and the time slot II are distributed in pairs.
In the foregoing solution, the encoding the RBG allocation result in the DCI using the DCI format includes: and writing the allocation result of the RBG in an RBA field of the new DCI format, and filling the allocation time slot of the RBG in a TSI field.
In the foregoing solution, the writing the allocation result of the RBG in the RBA field of the new DCI format and filling the allocation timeslot of the RBG in the TSI field includes:
when the allocated time slot is a time slot one, the TSI field is set to be 0x01, and the allocation result of the RBG is written in the RBA field; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the slot one and slot two pair are allocated, the TSI field is set to 0x00, and the allocation result of the RBG in the slot one and slot two pair is written in the RBA field.
In the foregoing solution, after the new DCI format is used to write the RBG allocation result in the DCI, the method further includes: and the eNodeB uses a physical downlink control channel PDCCH to send the DCI to a terminal sending the CQI information, and the terminal demodulates the DCI according to a preset program for demodulating a new DCI format.
The invention also provides a device for allocating RBGs in the LTE system, which comprises: an eNodeB transceiving module and an eNodeB resource allocation module; wherein,
an eNodeB transceiving module, configured to send the received CQI information to an eNodeB resource allocation module;
and the eNodeB resource allocation module is used for allocating RBGs in the first time slot and/or the second time slot for the terminal sending the CQI information according to the CQI information sent by the eNodeB transceiving module and the RBG use condition recorded by the eNodeB transceiving module, and writing the RBG allocation result in the DCI by using a new DCI format.
In the foregoing scheme, the eNodeB resource allocation module is specifically configured to store the set new DCI format, and specifically includes: before an RBA field in a DCI format, a TSI field is added, and other fields in the DCI format are set according to the specification of the existing protocol; wherein, the TSI field is used for indicating the time slot corresponding to the allocated RBG.
In the above scheme, the eNodeB resource allocation module is specifically configured to check whether a corresponding RBG in a first time slot is idle according to a frequency band with good signal quality of a terminal that sends CQI information recorded in the CQI information, and if the corresponding RBG in the first time slot is idle, determine the number of idle RBGs with good signal quality in the first time slot, and whether the number of idle RBGs meets the requirement of the terminal that sends CQI information, and if the number of idle RBGs in the first time slot is met, allocate an RBG in the first time slot to the terminal;
if the RBG corresponding to the frequency band with good signal quality of the terminal in the first time slot is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the first time slot does not meet the requirement of the terminal, checking whether the corresponding RBG in the second time slot is idle or not according to the frequency band with good signal quality of the terminal which is recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the second time slot and whether the requirement of the terminal which sends the CQI information is met or not, and if so, allocating the RBG of the second time slot to the terminal;
and if the RBG corresponding to the frequency band with good signal quality of the terminal in the time slot II is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the time slot II does not meet the requirement of the terminal, the RBGs in the time slot I and the time slot II are distributed in pairs.
In the foregoing solution, the eNodeB resource allocation module is specifically configured to write an allocation result of an RBG in an RBA field of a new DCI format, and fill an allocation timeslot of the RBG in a TSI field.
In the above scheme, the eNodeB resource allocation module is specifically configured to set a TSI field to 0x01 when an allocated timeslot is timeslot one, and write an allocation result of an RBG in an RBA field; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the slot one and slot two pair are allocated, the TSI field is set to 0x00, and the allocation result of the RBG in the slot one and slot two pair is written in the RBA field.
In the above scheme, the apparatus further comprises: the terminal DCI demodulation module is used for receiving the DCI sent by the eNodeB transceiving module and demodulating the DCI according to a preset program for demodulating a new DCI format;
correspondingly, the eNodeB transceiver module is further configured to receive DCI sent by the eNodeB resource allocation module, and send the DCI to the terminal DCI demodulation module by using the PDCCH;
and the eNodeB resource allocation module is also used for sending the DCI containing the RBG allocation result to the eNodeB transceiver module.
In the above solution, the eNodeB transceiver module and the eNodeB resource allocation module are located in an eNodeB; and the DCI demodulation module of the terminal is positioned at the terminal.
The method and the device for allocating RBGs in the LTE system provided by the invention determine the signal conditions of two time slots in a common subframe of a terminal sending CQI information according to the received CQI information and the RBG use condition recorded by the terminal, and allocate RBGs in a first time slot or a second time slot or allocate RBGs in the first time slot and the second time slot in pairs for the terminal sending CQI information; in addition, the invention improves the DCI format to obtain a new DCI format, so that the DCI can transmit the result of RBG allocation in the first time slot and/or the second time slot, thus, the invention can improve the anti-fading property of the LTE system by respectively allocating RBGs in different time slots, and further improve the performance of the whole system.
Drawings
FIG. 1 is a flowchart of a method for allocating RBGs in an LTE system according to the present invention;
FIG. 2 is a flowchart illustrating a method for allocating RBGs in an LTE system according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating an embodiment of a method for allocating RBGs in an LTE system according to the present invention;
fig. 4 is a schematic structural diagram of an apparatus for allocating RBGs in an LTE system according to the present invention.
Detailed Description
The basic idea of the invention is: and allocating RBGs in the first time slot and/or the second time slot for the terminal sending the CQI information according to the received CQI information and the self-recorded RBG use condition, and writing the RBG allocation result in the DCI by using a new DCI format.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows a method for allocating RBGs in an LTE system, which includes the following steps:
step 101: setting a new DCI format.
Here, the new DCI format is: before an RBA field in a DCI format is specified in a protocol, a TSI field is added, and other fields in the DCI format are set according to the specification of the existing protocol; wherein, the TSI field indicates a slot allocated to the RBG for the terminal, the length is two bytes, and the definition 0x00 indicates a pair allocation of slot one and slot two, 0x01 indicates an allocation only in slot one, and 0x02 indicates an allocation only in slot.
Step 102: and allocating RBGs in the first time slot and/or the second time slot to the terminal sending the CQI information according to the received CQI information and the RBG use condition recorded by the terminal.
Here, the CQI information is information of a signal quality condition of a downlink channel of a base station where the terminal monitors, and a generation method and a transmission format of the CQI information are both in the prior art and are not described herein again; the CQI information may be the CQI information periodically sent by the terminal to the eNodeB according to a preset period, or the CQI information may be sent by the terminal to the eNodeB after the terminal receives a command for reporting the CQI information sent by the eNodeB.
Step 103: the RBG allocation result is written in DCI using the new DCI format.
Here, the writing is: writing the allocation result of the RBG in an RBA field of a new DCI format, and filling the allocation time slot of the RBG in a TSI field, specifically: when the allocated time slot is a time slot one, the TSI field is set to be 0x01, and the allocation result of the RBG is written in the RBA field; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the time slot one is paired with the time slot two, the TSI field is set to be 0x00, and the allocation result of the RBG paired with the time slot one and the time slot two is compiled in the RBA field; the allocation result of writing the RBG in the RBA field is written according to the prior art, and the RBG allocated this time can be marked as occupied and the identifier of the allocated terminal can be marked in the resource bitmap specified in the prior art.
In step 102, the allocating RBGs in slot one and/or slot two to the terminal sending the CQI information according to the received CQI information and the usage of RBGs recorded by the terminal, includes the following steps:
step a: according to the frequency band with good signal quality of the terminal sending the CQI information recorded in the CQI information, checking whether the corresponding RBG in the first time slot is idle, if so, executing the step b; otherwise, executing step c.
Here, the good signal quality of the terminal may be: determining according to a preset signal quality threshold value, and when the signal strength of any frequency band uploaded in the CQI information is higher than the signal quality threshold value, determining that the frequency band with good signal quality is obtained; the signal quality threshold is preset according to actual conditions.
Whether the RBG resource is idle is as follows: and determining whether the RBG resource recorded by the eNodeB has an occupied mark or not.
Step b: judging whether the number of free RBGs with good signal quality in the first time slot meets the requirement of the terminal sending the CQI information, if so, allocating the RBGs in the first time slot for the terminal, and executing the step 103; if not, step c is performed.
Here, whether or not the requirement of the terminal sending the CQI information is satisfied is: the eNodeB checks the number of RBGs required to be used by the terminal recorded by the eNodeB according to the terminal identification in the CQI information, and judges whether the number of the RBGs corresponding to the frequency band with good signal quality in the time slot I managed by the current eNodeB meets the requirement of the terminal; the number of RBGs required to be used by the recorded terminal is information of the terminal managed by the eNodeB, which is specified in the prior art and needs to be recorded by the eNodeB, which is not described herein again.
Step c: checking whether the corresponding RBG in the time slot II is idle or not according to the frequency band with good signal quality of the terminal sending the CQI information recorded in the CQI information, and if the RBG is idle, executing the step d; otherwise, executing step e.
Step d: judging whether the number of idle RBGs with good signal quality in the time slot two meets the requirement of the terminal sending the CQI information, if so, allocating the RBGs in the time slot two for the terminal, and executing the step 103; if not, step e is performed.
Step e: the RBGs of slot one and slot two are allocated in pairs and step 103 is performed.
Here, the RBGs that are pairwise allocated to the time slot one and the time slot two are allocated according to an existing protocol, which is not described herein.
In addition, before step 101, a terminal managed by the eNodeB needs to be improved to enable the terminal to demodulate the new DCI format provided by the present invention, and the method for the terminal to improve may be: presetting a demodulation program for demodulating the new DCI format in the terminal, wherein methods for writing and presetting the program for demodulating the new DCI format are both the prior art and are not described herein; in addition, the eNodeB also needs to determine the manner in which the new DCI format is set according to the condition that the terminal managed by the eNodeB itself is improved to be capable of demodulating the new DCI format provided by the present invention, and if most of the terminals currently managed by the eNodeB can be modified to be terminals that demodulate the new DCI format, the first manner is adopted to set the new DCI format; otherwise, setting a new DCI format by adopting a second mode; wherein the majority may be a ratio higher than a preset value, such as: may be higher than 98%, i.e. more than 98% of the terminals managed by the eNodeB can be improved to terminals demodulating the new DCI format;
wherein, the setting of the new DCI format in the first adoption mode is as follows: all the existing DCI formats specified in the protocol are modified into corresponding new DCI formats, and the new DCI formats are still associated with the transmission modes corresponding to the original DCI formats; the setting of the transmission mode corresponding to the new DCI format is performed according to the prior art, for example, if the transmission mode corresponding to the DCI 1a format in the prior art is the transmission mode 2, the transmission mode corresponding to the new DCI 1a format is still set to be the transmission mode 2 in this embodiment, and the method of setting the transmission modes corresponding to other new DCI formats is similar to this, which is not described herein again; setting a new DCI format in the second adoption mode as follows: and additionally defining a new DCI format, enabling the terminal demodulating the new DCI format to use the new DCI format with the eNodeB, defining the transmission mode of the terminal as a new transmission mode, and associating the new DCI format with the new transmission mode by the eNodeB. Wherein, the defining of a new DCI format may be: modifying on the basis of the existing DCI 1a format, adding a TSI field in front of an RSA field of the DCI 1a format, and defining the modified DCI 1a format as a DCI 7 format; the method for defining the new transmission mode is the prior art, for example, the new transmission mode can be defined as the transmission mode 12.
Further, when a new DCI format is set in the first mode in step 101, before step 102, the eNodeB needs to acquire a transmission mode of a terminal capable of demodulating the new DCI format according to the existing technology, determine a new DCI format corresponding to the terminal capable of demodulating the new DCI format, and when step 103 is executed, encode a result of allocating an RBG in DCI and send the result to the corresponding terminal by using the determined new DCI format;
when a new DCI format is set in the second mode in step 101, before step 102, the eNodeB acquires the transmission modes of all terminals managed by the eNodeB itself according to the prior art, and determines whether the terminal that sends the CQI information is a terminal that can demodulate the new DCI format, if so, step 102 is executed; if not, the subsequent operation of allocating RBGs is executed according to the prior art, which is not described herein.
After the step 103 is completed, the eNodeB uses the PDCCH to send the DCI to the terminal, and the terminal demodulates the DCI according to a preset program for demodulating a new DCI format, and then performs subsequent operations according to the RBG allocation result in the DCI according to the prior art.
In a first embodiment, assuming that a terminal managed by an eNodeB is fully improved to a terminal capable of demodulating a new DCI format, the eNodeB sets the new DCI format in a first manner, a terminal sending CQI information is a terminal one, and a transmission mode of the terminal one is 2, a method for allocating an RBG in an LTE system according to the present invention is implemented as shown in fig. 2, and includes the following steps:
step 201: the eNodeB sets the new DCI format in mode one.
Step 202: and the eNodeB determines that the new DCI format corresponding to the first terminal is the new DCI 1a format according to the transmission mode of the first terminal managed by the eNodeB as 2.
Here, the transmission mode of the terminal is a parameter of the terminal managed by the eNodeB itself, and the method for the eNodeB to obtain the transmission mode of the terminal is the prior art and is not described herein.
Step 203: the eNodeB receives CQI information sent by the terminal managed by the eNodeB.
Step 204: and the eNodeB allocates RBGs in the first time slot and/or the second time slot to the first terminal according to the received CQI information and the recorded RBG use condition.
Step 205: and the eNodeB writes the RBG distribution result in the DCI by using the new DCI 1a format and sends the result to the first terminal.
In the second embodiment, assuming that most of terminals currently managed by the eNodeB cannot be modified to be terminals that demodulate the new DCI format, the eNodeB sets the new DCI format to DCI 7 in the second mode, where the transmission mode corresponding to DCI 7 is 12, the terminal that sends the CQI information is a second terminal that can demodulate the DCI 7 format, and the transmission mode of the second terminal is 12, the method for allocating an RBG in the LTE system of the present invention is implemented as shown in fig. 3, and includes the following steps:
step 301: the eNodeB sets the new DCI format to DCI 7 format in mode two, and defines the corresponding transmission mode as transmission mode 12.
Step 302: and the eNodeB determines that the new DCI format corresponding to the second terminal is the DCI 7 format according to the transmission mode 12 of the second terminal managed by the eNodeB.
Step 303: the eNodeB judges whether the received CQI information comes from the second terminal, if so, the step 304 is executed; otherwise, the subsequent processing is performed using the prior art while repeating step 303.
Step 304: and the eNodeB allocates the RBGs in the first time slot and/or the second time slot to the terminal according to the received CQI information and the recorded RBG use condition.
Step 305: and the eNodeB writes the RBG allocation result in the DCI by using the DCI 7 format and sends the result to the second terminal.
As shown in fig. 4, an apparatus for allocating RBGs in an LTE system according to the present invention includes: an eNodeB resource allocation module 41 and an eNodeB transceiving module 42; wherein,
an eNodeB transceiver module 42, configured to send the received CQI information to the eNodeB resource allocation module 41;
an eNodeB resource allocation module 41, configured to allocate the RBGs in the first time slot and/or the second time slot to the terminal sending the CQI information according to the CQI information sent by the eNodeB transceiver module 42 and the self-recorded usage of the RBGs, and write the RBG allocation result in the DCI by using the new DCI format.
The eNodeB resource allocation module 41 is further configured to store the new DCI format.
The eNodeB resource allocation module 41 is specifically configured to write an allocation result of an RBG in an RBA field of a new DCI format, and fill an allocation timeslot of the RBG in a TSI field, and specifically: when the allocated time slot is a time slot one, the TSI field is set to be 0x01, and the allocation result of the RBG is written in the RBA field; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the slot one and slot two pair are allocated, the TSI field is set to 0x00, and the allocation result of the RBG in the slot one and slot two pair is written in the RBA field.
The eNodeB resource allocation module 41 is specifically configured to check whether the corresponding RBG in the first time slot is idle according to the frequency band with good signal quality of the terminal that sends the CQI information, which is recorded in the CQI information, and if the RBG is idle, determine the number of idle RBGs with good signal quality in the first time slot, and whether the number of idle RBGs meets the requirement of the terminal that sends the CQI information, and if the number of idle RBGs meets the requirement, allocate an RBG of the first time slot to the terminal;
if the RBG corresponding to the frequency band with good signal quality of the terminal in the first time slot is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the first time slot does not meet the requirement of the terminal, checking whether the corresponding RBG in the second time slot is idle or not according to the frequency band with good signal quality of the terminal which is recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the second time slot and whether the requirement of the terminal which sends the CQI information is met or not, and if so, allocating the RBG of the second time slot to the terminal;
and if the RBG corresponding to the frequency band with good signal quality of the terminal in the time slot II is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the time slot II does not meet the requirement of the terminal, the RBGs in the time slot I and the time slot II are distributed in pairs.
The eNodeB resource allocation module 41 is further configured to determine a manner adopted for setting the new DCI format according to a situation that a terminal managed by the eNodeB is improved to be capable of demodulating the new DCI format provided by the present invention, and set the new DCI format in a first manner if most of terminals currently managed by the eNodeB can be modified to be terminals that demodulate the new DCI format; otherwise, setting a new DCI format by adopting a second mode; wherein the majority may be a ratio higher than a preset value, such as: it may be higher than 98%, i.e. more than 98% of the terminals managed by the eNodeB can be improved to terminals demodulating the new DCI format.
Wherein, the setting of the new DCI format in the first adoption mode is as follows: all the existing DCI formats specified in the protocol are modified into corresponding new DCI formats, and the new DCI formats are still associated with the transmission modes corresponding to the original DCI formats; the setting of the transmission mode corresponding to the new DCI format is performed according to the prior art, for example, if the transmission mode corresponding to the DCI 1a format in the prior art is the transmission mode 2, the transmission mode corresponding to the new DCI 1a format is still set to be the transmission mode 2 in this embodiment, and the method of setting the transmission modes corresponding to other new DCI formats is similar to this, which is not described herein again;
setting a new DCI format in the second adoption mode as follows: and additionally defining a new DCI format, enabling the terminal demodulating the new DCI format to use the new DCI format with the eNodeB, defining the transmission mode of the terminal as a new transmission mode, and associating the new DCI format with the new transmission mode by the eNodeB. Wherein, the defining of a new DCI format may be: modifying on the basis of the existing DCI 1a format, adding a TSI field in front of an RSA field of the DCI 1a format, and defining the modified DCI 1a format as a DCI 7 format; the method for defining the new transmission mode is the prior art, for example, the new transmission mode can be defined as the transmission mode 12.
The eNodeB resource allocation module 41 is further configured to, when a new DCI format is set in the first mode, acquire a transmission mode of a terminal capable of demodulating the new DCI format and determine a new DCI format corresponding to the terminal capable of demodulating the new DCI format.
The eNodeB resource allocation module 41 is further configured to, when setting a new DCI format in the second mode, the eNodeB acquires transmission modes of all terminals managed by the eNodeB according to the prior art, and determines whether the terminal sending the CQI information is a terminal capable of demodulating the new DCI format, and if so, allocates an RBG in the first time slot and/or the second time slot to the terminal sending the CQI information according to the received CQI information and a usage of an RBG recorded by the eNodeB; if not, the subsequent operation of allocating RBGs is executed according to the prior art, which is not described herein.
The device further comprises: the terminal DCI demodulation module 43 is configured to store a preset demodulation program for demodulating the new DCI format, and methods for writing and presetting the program for demodulating the new DCI format are all the prior art, which are not described herein.
The eNodeB resource allocation module 41 is further configured to send DCI to the eNodeB transceiving module 42; correspondingly, the eNodeB transceiver module 42 is further configured to receive the DCI sent by the eNodeB resource allocation module 41, and send the DCI to the terminal DCI demodulation module 43 using the PDCCH; the terminal DCI demodulating module 43 is further configured to receive DCI sent by the eNodeB transceiving module 42, demodulate the DCI according to a preset program for demodulating a new DCI format, and perform subsequent operations according to the prior art according to an RBG allocation result in the DCI.
The eNodeB transceiver module 42 and eNodeB resource allocation module 41 are located in an eNodeB; the terminal DCI demodulation module 43 is located at the terminal.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A method for allocating Resource Block Groups (RBGs) in a Long Term Evolution (LTE) system is characterized by comprising the following steps:
allocating RBGs in a first time slot and/or a second time slot for a terminal sending CQI information according to the received CQI information and the recorded RBG use condition;
coding the RBG distribution result in DCI by using a new downlink control information DCI format; the new DCI format is that before the resource block in the DCI format is allocated with the RBA field, a time slot indication TSI field is added, and other fields in the DCI format are set according to the provisions of the existing protocol; the TSI field is used for indicating a time slot corresponding to the allocated RBG;
wherein, the allocating RBGs in a first time slot and/or a second time slot to the terminal sending the CQI information according to the received CQI information and the recorded RBG use condition comprises:
checking whether the corresponding RBG in the first time slot is idle according to the frequency band with good signal quality of the terminal sending the CQI information recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the first time slot and whether the requirement of the terminal sending the CQI information is met, and if so, allocating the RBG of the first time slot to the terminal;
if the RBG corresponding to the frequency band with good signal quality of the terminal in the first time slot is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the first time slot does not meet the requirement of the terminal, checking whether the corresponding RBG in the second time slot is idle or not according to the frequency band with good signal quality of the terminal which is recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the second time slot and whether the requirement of the terminal which sends the CQI information is met or not, and if so, allocating the RBG of the second time slot to the terminal;
and if the RBG corresponding to the frequency band with good signal quality of the terminal in the time slot II is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the time slot II does not meet the requirement of the terminal, the RBGs in the time slot I and the time slot II are distributed in pairs.
2. The method of claim 1, wherein before the RBG usage based on the received CQI information and its own record, the method further comprises: setting a new DCI format.
3. The method of claim 1, wherein the encoding the RBG allocation result in the DCI using the DCI format comprises: and writing the allocation result of the RBG in an RBA field of the new DCI format, and filling the allocation time slot of the RBG in a TSI field.
4. The method of claim 3, wherein writing the allocation result of the RBG in the RBA field of the new DCI format and filling the allocation slot of the RBG in the TSI field comprises:
when the allocated time slot is a time slot one, the TSI field is set to be 0x01, and the allocation result of the RBG is written in the RBA field; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the slot one and slot two pair are allocated, the TSI field is set to 0x00, and the allocation result of the RBG in the slot one and slot two pair is written in the RBA field.
5. The method of claim 1 or 3, wherein after writing the RBG allocation result in the DCI using the new DCI format, the method further comprises: and the eNodeB uses a physical downlink control channel PDCCH to send the DCI to a terminal sending the CQI information, and the terminal demodulates the DCI according to a preset program for demodulating a new DCI format.
6. An apparatus for allocating RBGs in an LTE system, the apparatus comprising: an eNodeB transceiving module and an eNodeB resource allocation module; wherein,
an eNodeB transceiving module, configured to send the received CQI information to an eNodeB resource allocation module;
an eNodeB resource allocation module, configured to check whether a corresponding RBG in a first time slot is idle according to a frequency band with good signal quality of a terminal sending the CQI information recorded in the CQI information, if the RBG is idle, determine the number of idle RBGs with good signal quality in the first time slot, and whether the number of idle RBGs meets the requirement of the terminal sending the CQI information, and if the RBG meets the requirement, allocate the RBG of the first time slot to the terminal; if the RBG corresponding to the frequency band with good signal quality of the terminal in the first time slot is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the first time slot does not meet the requirement of the terminal, checking whether the corresponding RBG in the second time slot is idle or not according to the frequency band with good signal quality of the terminal which is recorded in the CQI information, if so, judging the number of the idle RBGs with good signal quality in the second time slot and whether the requirement of the terminal which sends the CQI information is met or not, and if so, allocating the RBG of the second time slot to the terminal; if the RBG corresponding to the frequency band with good signal quality of the terminal in the time slot II is not idle or the number of the RBGs corresponding to the frequency band with good signal quality in the time slot II does not meet the requirement of the terminal, the RBGs of the time slot I and the time slot II are distributed in pairs; the method is also used for writing the RBG allocation result in the DCI by using the new DCI format; the new DCI format is: before an RBA field in a DCI format, a TSI field is added, and other fields in the DCI format are set according to the specification of the existing protocol; wherein, the TSI field is used for indicating the time slot corresponding to the allocated RBG.
7. The apparatus of claim 6,
the eNodeB resource allocation module is specifically configured to store the set new DCI format.
8. The apparatus of claim 6,
the eNodeB resource allocation module is specifically configured to write an allocation result of the RBG in an RBA field of a new DCI format, and fill an allocation time slot of the RBG in a TSI field.
9. The apparatus of claim 8,
the eNodeB resource allocation module is specifically configured to set a TSI field to 0x01 and write an allocation result of an RBG in an RBA field when an allocated timeslot is timeslot one; when the allocated time slot is the time slot two, the TSI field is set to be 0x02, and the allocation result of the RBG is written in the RBA field; when the slot one and slot two pair are allocated, the TSI field is set to 0x00, and the allocation result of the RBG in the slot one and slot two pair is written in the RBA field.
10. The apparatus of claim 9, further comprising:
the terminal DCI demodulation module is used for receiving the DCI sent by the eNodeB transceiving module and demodulating the DCI according to a preset program for demodulating a new DCI format;
correspondingly, the eNodeB transceiver module is further configured to receive DCI sent by the eNodeB resource allocation module, and send the DCI to the terminal DCI demodulation module by using the PDCCH;
and the eNodeB resource allocation module is also used for sending the DCI containing the RBG allocation result to the eNodeB transceiver module.
11. The apparatus of claim 10,
the eNodeB transceiving module and the eNodeB resource allocation module are positioned in an eNodeB;
and the DCI demodulation module of the terminal is positioned at the terminal.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016270.2A CN102448175B (en) | 2012-01-18 | 2012-01-18 | The method of Resources allocation block group and device in a kind of long evolving system |
| CN201410013313.0A CN103763779B (en) | 2012-01-18 | 2012-01-18 | The method and device of resource block group is distributed in a kind of long evolving system |
| JP2014530077A JP5764263B2 (en) | 2012-01-18 | 2012-04-12 | Resource block group distribution method and distribution apparatus in LTE system |
| PCT/CN2012/073946 WO2013107113A1 (en) | 2012-01-18 | 2012-04-12 | Method and device for distributing resource block groups in long term evolution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016270.2A CN102448175B (en) | 2012-01-18 | 2012-01-18 | The method of Resources allocation block group and device in a kind of long evolving system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013313.0A Division CN103763779B (en) | 2012-01-18 | 2012-01-18 | The method and device of resource block group is distributed in a kind of long evolving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102448175A CN102448175A (en) | 2012-05-09 |
| CN102448175B true CN102448175B (en) | 2015-08-12 |
Family
ID=46010115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210016270.2A Expired - Fee Related CN102448175B (en) | 2012-01-18 | 2012-01-18 | The method of Resources allocation block group and device in a kind of long evolving system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5764263B2 (en) |
| CN (1) | CN102448175B (en) |
| WO (1) | WO2013107113A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10470194B2 (en) | 2015-04-09 | 2019-11-05 | Lg Electronics Inc. | Method for transmitting interference downlink control information in a wireless communication system and apparatus therefor |
| CN111885716A (en) | 2016-09-29 | 2020-11-03 | 华为技术有限公司 | Resource allocation method and device |
| EP3592060B1 (en) | 2017-03-03 | 2021-07-28 | Huawei Technologies Co., Ltd. | Resource allocation method, determination method and apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113254A (en) * | 2008-08-08 | 2011-06-29 | Lg电子株式会社 | Method and device for allocating resources in multiple frequency band system |
| CN102196495A (en) * | 2010-03-03 | 2011-09-21 | 电信科学技术研究院 | Downlink data transmission method, system and equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6810236B2 (en) * | 2001-05-14 | 2004-10-26 | Interdigital Technology Corporation | Dynamic channel quality measurement procedure for adaptive modulation and coding techniques |
| WO2010039003A2 (en) * | 2008-10-01 | 2010-04-08 | 엘지전자주식회사 | Method and apparatus for wireless resource allocation for relay in wireless communication system |
| JP5222765B2 (en) * | 2009-03-25 | 2013-06-26 | 株式会社エヌ・ティ・ティ・ドコモ | Radio base station and mobile communication method |
| JP2011142532A (en) * | 2010-01-08 | 2011-07-21 | Sharp Corp | Wireless communication system, base station apparatus, mobile station device, wireless communication method, and integrated circuit |
-
2012
- 2012-01-18 CN CN201210016270.2A patent/CN102448175B/en not_active Expired - Fee Related
- 2012-04-12 JP JP2014530077A patent/JP5764263B2/en not_active Expired - Fee Related
- 2012-04-12 WO PCT/CN2012/073946 patent/WO2013107113A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113254A (en) * | 2008-08-08 | 2011-06-29 | Lg电子株式会社 | Method and device for allocating resources in multiple frequency band system |
| CN102196495A (en) * | 2010-03-03 | 2011-09-21 | 电信科学技术研究院 | Downlink data transmission method, system and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5764263B2 (en) | 2015-08-19 |
| WO2013107113A1 (en) | 2013-07-25 |
| CN102448175A (en) | 2012-05-09 |
| JP2014530527A (en) | 2014-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110832931B (en) | Method for allocating resources in wireless communication system and apparatus using the same | |
| US10805952B2 (en) | Infrastructure equipment, wireless communications network and method | |
| US9973434B2 (en) | Communications terminal and method | |
| CN101730139B (en) | Descending control channel assignment and blind test method | |
| CN110637439B (en) | Search space monitoring | |
| CN103068047B (en) | Physical uplink control channel resource allocation method | |
| CN103141146A (en) | Mobile communication system, mobile station apparatus, base station apparatus, communication method and integrated circuit | |
| JP2014079021A (en) | Base station device, mobile station device, and communication method | |
| JP2016509414A (en) | Power headroom reporting method and apparatus | |
| CN106413105A (en) | Resource transmission indication method and apparatus, network-side equipment, and terminal | |
| JP2013192272A (en) | Method for transmitting and receiving control channel in wireless communication system | |
| KR102019892B1 (en) | Method and apparatus for transmitting/receiving periodic channel information in wireless communication system | |
| KR20120056869A (en) | A method for scheduling transmissions between a base station and user terminals, a base station and a communication network therefor | |
| CN106507494A (en) | Packet-based M2M communication uplinks Semi-static scheduling method | |
| CN108029109A (en) | A kind of transmission method of control information, device and system | |
| CN112398521A (en) | Method and equipment for reporting channel state | |
| CN101998634B (en) | Method, system and equipment for transmitting periodical feedback information | |
| CN102448175B (en) | The method of Resources allocation block group and device in a kind of long evolving system | |
| CN103856290A (en) | Data transmission method and device | |
| CN111294191A (en) | Data transmission method and device | |
| CN103763779B (en) | The method and device of resource block group is distributed in a kind of long evolving system | |
| CN110417528B (en) | D2D communication method and device | |
| CN107682138A (en) | A kind of method and device of communication | |
| US20170257848A1 (en) | Measurement-relates signaling for wireless communication | |
| US12108432B2 (en) | Channel quality reporting method and apparatus of direct link, storage medium, and user equipment |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |