CN109314865A - A kind of base station sends method, BBU and the RHUB of data - Google Patents
A kind of base station sends method, BBU and the RHUB of data Download PDFInfo
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- CN109314865A CN109314865A CN201680086855.8A CN201680086855A CN109314865A CN 109314865 A CN109314865 A CN 109314865A CN 201680086855 A CN201680086855 A CN 201680086855A CN 109314865 A CN109314865 A CN 109314865A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
Abstract
A kind of base station sends method, BBU and the RHUB of data, for realizing the space division multiplexing in same cell, promotes performance of the entire network.This method are as follows: the BBU obtains the communication connection relationship between M terminal and the L RRU in the cell；The BBU is generated as the M terminal distribution M group downlink resource, and generates the distribution information to M terminal M group downlink data to be sent, wherein a terminal corresponds to one group of downlink resource and one group of downlink data, M >=1, M are positive integer；The BBU sends the distribution information of the communication connection relationship, the M group downlink data and the M group downlink resource to the RHUB, sends for the RHUB to any one RRU: having the corresponding downlink data of terminal and downlink resource of communication connection with any one described RRU.
Description
This application involves field of communication technology, in particular to a kind of base station sends method, BBU and the RHUB of data.
With the development of communication technology, interior has become mobile service district occurred frequently.In current indoor coverage of signal technology, a kind of architecture of base station uses baseband processing unit (Base Band Unit, BBU)-Remote Radio Unit hub (Remote Radio Unit Hub, RHUB)-small-power RRU (picro-RRU, pRRU) three-decker.One BBU can connect one or more RHUB, and a RHUB can connect multiple pRRU.Its working principle is that: BBU sends a signal to RHUB, pass through a cable connection between RHUB and pRRU, signal is distributed to each pRRU by RHUB, radiofrequency signal after radiofrequency signal, is accessed interior by transmission devices such as radio frequency feed line, conjunction/splitter, antennas by signal processing by each pRRU.Feedback signal is sent to pRRU by indoor terminal, and feedback signal is sent to RHUB after RHUB is converged each feedback signal again and is transmitted further to BBU by each pRRU.RHUB is also used to be powered pRRU.
Wherein, pRRU is small-power radio-frequency module, and compared with the RRU in DAS system, volume and weight wants small, and function is identical.Each pRRU can be with flexible configuration scrambling code, a scrambling code (forming a cell) can be configured with a Pico RRU, the same cell can also be configured to multiple pRRU, in this way, capacity can be with flexible configuration and adjustment, it is combined with wide covering power, is adapted to a variety of different applications.When multiple pRRU are configured to the same cell, in down direction, initial downlink data is issued RHUB by BBU, and initial downlink data is copied into more parts by RHUB, is distributed to each pRRU, wherein the downlink data content that each pRRU is received is identical；In up direction, each pRRU receives the upstream data that terminal is sent, and issues RHUB, and RHUB carries out radio frequency combining to each upstream data, is then forwarded to BBU and demodulated.Therefore, the same cell that multiple pRRU are configured to can also become radio frequency and be combined cell.
Under the application scenarios of radio frequency combining cell, since the downlink data content that RHUB is sent to each pRRU is identical, the resource utilization of same frequency range is very low, and cell downlink capacity is relatively low.
Summary of the invention
The application provides a kind of method and device of base station transmission data, to realize base station space division multiplexing, and then promotes radio frequency and is combined cell downlink capacity.
On the one hand, a kind of method that base station sends data is provided, the base station includes BBU, RHUB and the L RRU positioned at the same cell, wherein the BBU is connect with the RHUB, and the L RRU is connect with the RHUB, and L >=2, L are positive integer.BBU only distributes the downlink resource of the terminal in itself coverage area and the information of downlink data to each RRU, in this way, a part of downlink resource can be saved, using space isolation, space division multiplexing is realized, reduce invalid send, avoid waste of resource, also, it is reduced due to occupying resource to the data sent to each RRU103, is further reduced the interference to adjacent area.
In a possible design, the BBU obtains the communication connection relationship between M terminal and the L RRU in the cell, and it is generated as the M terminal distribution M group downlink resource, generate the distribution information to M terminal M group downlink data to be sent, wherein, one corresponding one group of downlink resource of terminal and one group of downlink data, M >=1, M is positive integer, the BBU sends the communication connection relationship to the RHUB, the distribution information of the M group downlink data and the M group downlink resource, it is sent for the RHUB to any one RRU: there is the corresponding downlink data of terminal and downlink resource of communication connection with any one described RRU.Unnecessary invalid transmission can be reduced in this way, avoid the wasting of resources, and the downlink resource by saving, the capacity being able to ascend in the same cell is further reduced due to occupying resource, to reduce the interference to adjacent area.
In a possible design, the BBU is the M terminal distribution M group downlink resource according to following allocation rule: if the first terminal and second terminal in the M terminal have communication connection with the same RRU, distributing different downlink resources for the first terminal and the second terminal；If RRU from the first terminal with communication connection relationship and having the RRU of communication connection different with third terminal, for the downlink resource of the first terminal and third terminal distribution maximal degree of coincidence,
The third terminal is any terminal in the M terminal in addition to first terminal and second terminal.In this way, can be overlapped to greatest extent to the resource distribution location of the terminal notification under different RRU covering, reduces resource occupation, further reduce the interference to adjacent area.For the RRU in the same cell, more resources can be saved, for distributing to more terminals, realize the space division multiplexing in same cell.
In a possible design, the BBU is after obtaining the communication connection relationship, before generating the distribution information, the BBU according to the communication connection relationship, calculate and at least two RRU all have communication connection terminal number and M ratio；And determine that the ratio is less than setting ratio threshold value.In such manner, it is possible to guarantee that terminal in cell can satisfy the condition of space division multiplexing.
In a possible design, the BBU obtains the communication connection relationship between the M terminal and the L RRU, the BBU listens to the cyclical signal that the RHUB is reported, wherein, the RHUB successively will be transmitted to the BBU by received cyclical signal on each RRU according to poll order, the identification information of the cyclical signal carried terminal, the BBU whenever listen to received cyclical signal on a RRU be more than setting intensity threshold when, determine between the corresponding terminal of identification information and the RRU currently listened to for the terminal that the cyclical signal currently listened to carries that there is communication connection.
Second aspect, a kind of method that base station sends data is provided, the base station includes baseband processing unit BBU, Remote Radio Unit hub RHUB and the L radio frequency remote unit RRU positioned at the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer；The described method includes: the RHUB receives M terminal in the cell that the BBU is sent and the communication connection relationship between the L RRU, the distribution information of M group downlink data and M group downlink resource, wherein, one corresponding one group of downlink data of terminal and one group of downlink resource, M >=1, M are positive integer；The RHUB combines the downlink resource and downlink data pending to each RRU according to the communication connection relationship, the M group downlink data and the distribution information, and is sent respectively to each RRU；Wherein, the RHUB is sent to any one RRU has the corresponding downlink data of terminal and downlink resource communicated to connect with any one described RRU.In such manner, it is possible to save a part of downlink resource, using space isolation, space division multiplexing is realized, reduce invalid transmission, avoid waste of resource, also, reduce due to occupying resource to the data sent to each RRU103, because
This is further reduced the interference to adjacent area.
The third aspect, provides a kind of baseband processing unit BBU, which has the function of realizing BBU behavior in any possible design of above-mentioned first aspect and first aspect.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.
Fourth aspect provides a kind of Remote Radio Unit hub RHUB, which has the function of realizing RHUB behavior in any possible design of above-mentioned second aspect and second aspect.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.
5th aspect, a kind of baseband processing unit BBU is provided, the baseband processing unit includes transceiver, memory and processor, wherein, the memory is used to call the program of the memory storage to execute the method as described in any possible design of above-mentioned first aspect and first aspect for storing batch processing, the processor.
6th aspect, a kind of Remote Radio Unit hub RHUB is provided, the Remote Radio Unit hub includes transceiver, memory and processor, wherein, the memory is used to call the program of the memory storage to execute the method as described in any possible design of above-mentioned second aspect and second aspect for storing batch processing, the processor.
7th aspect, a kind of base station is provided, including the baseband processing unit as described in terms of the third aspect or the 5th, the Remote Radio Unit hub as described in terms of fourth aspect or the 6th and positioned at L RRU of the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer.
Fig. 1 is one of architecture of base station schematic diagram in the embodiment of the present application；
Fig. 2 is one of the method flow schematic diagram that base station sends data in the embodiment of the present application；
Fig. 3 is two of architecture of base station schematic diagram in the embodiment of the present application；
Fig. 4 is the schematic diagram in the embodiment of the present application according to normal dispatch mode dispatch terminal；
Fig. 5 is the relations of distribution schematic diagram of downlink resource and downlink data in the embodiment of the present application；
Fig. 6 is the two of the method flow schematic diagram that base station sends data in the embodiment of the present application；
Fig. 7 is one of baseband processing unit structural schematic diagram in the embodiment of the present application；
Fig. 8 is one of Remote Radio Unit hub architecture schematic diagram in the embodiment of the present application；
Fig. 9 is baseband processing unit second structural representation in the embodiment of the present application；
Figure 10 is two of Remote Radio Unit hub architecture schematic diagram in the embodiment of the present application.
In order to keep the purposes, technical schemes and advantages of the application clearer, the application is described in further detail below in conjunction with attached drawing, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.
Scheme provided by the embodiments of the present application can be applied to each scene in wireless technical field, including but not limited to mobile communication system, fixed wireless access system, wireless system for transmitting data, radar system etc., the embodiment of the present application is not specially limited this.
Method provided by the embodiments of the present application is illustrated with reference to the accompanying drawing, as shown in fig.1, the invention relates to base station 100 in include BBU101, RHUB102 and L RRU103, L >=2, L are positive integer.L RRU103 can be denoted as RRU1-103, RRU2-103 ..., RRUL-103.Base station 100 can regard the three-decker of BBU-RHUB-RRU as.Wherein, a BBU101 can connect one or more RHUB102, be illustrated by taking one RHUB102 of a BBU101 connection as an example in Fig. 1.One RHUB102 can connect multiple RRU103, and L RRU103 is denoted as in Fig. 1.For RRU103 can compare for small-power radio-frequency module pRRU, pRRU than traditional RRU, volume and weight is much smaller, and function is identical.By the connection of cable between RHUB102 and RRU103, the main distribution and convergence for completing signal, and functions are powered etc. to RRU103.Downlink data is sent to RHUB102 by BBU101, is transmitted to each RRU103 by RHUB102.Wherein, L RRU103 is located at the same cell, and different RRU103 covers different ranges, such as 1 building of 100 place mansion of RRU1-103 coverage base station, 3 buildings of 100 place mansion of RRU3-103 coverage base station, the signal of RRU1-103 and the signal of RRU3-103 have biggish space isolation.
It should be noted that, scheme provided by the embodiments of the present application is not limited to be applied to base station, and scheme provided by the embodiments of the present application can be applied to the system of any three-decker with BBU-RHUB-RRU or be made in the system changed on this basis by those skilled in the art.
The embodiment of the present application is under the scene of radio frequency combining cell, it is no longer the data distributed the identical data of content to each RRU103, but only distribute the terminal in itself coverage area to each RRU103, in this way, a part of downlink resource can be saved, using space isolation, space division multiplexing is realized, reduce invalid send, avoid waste of resource, also, it is reduced due to occupying resource to the data sent to each RRU103, is further reduced the interference to adjacent area.
Based on base station architecture shown in FIG. 1, as shown in Fig. 2, the method flow that base station provided by the embodiments of the present application sends data is as follows:
Step 201, BBU101 obtain M terminal in cell and the communication connection relationship between L RRU103.
Wherein, terminal is under the covering of RRU, it can be understood as has communication connection between terminal and RRU, there are multi-unit message connections between M terminal and L RRU, form communication connection relationship.
Optionally, BBU101 is after obtaining communication connection relationship, according to communication connection relationship, the case where identification terminal isolation.In practical application, terminal isolation is when being more than thresholding, it is believed that terminal meets space division condition, and the thresholding of setting is higher, and the interference between terminal is smaller, and space division effect is better.For example, isolation is in 15~20dB, it is believed that the interference of terminal room can receive, that is, meet space division condition.BBU101, which is directed to, meets terminal record terminal iidentification (i.e. ID) of space division condition and the ID of the corresponding RRU of terminal.
In a kind of possible embodiment, BBU101 is after obtaining communication connection relationship, the terminal calculated under the covering of more than two RRU103 accounts for total number of terminals purpose ratio, that is BBU101 calculating and at least two RRU103 all have the number of the terminal of communication connection and the ratio of M, and judge whether the ratio being calculated is less than setting ratio threshold value, if ratio is less than setting ratio threshold value, step 202 is executed；If ratio is not less than setting ratio threshold value, according to existing scheduling mode dispatch terminal.
Step 202, BBU101 are M terminal distribution M group downlink resource, and generate the M group downlink data to be sent to M terminal, generate the distribution information of above-mentioned M group downlink resource and M group downlink data, wherein, the corresponding one group of downlink resource of one terminal and one group of downlink data, M >=1, M are positive integer.
Optionally, BBU101 is M terminal distribution M group downlink resource according to following allocation rule.
Assuming that first terminal, second terminal, third terminal are mutually different any terminal in M terminal.If first terminal and second terminal have communication connection with the same RRU103, it is considered that mutual interference can be generated with the downlink data for being sent to second terminal by being sent to the downlink data of first terminal, in this case, then different downlink resources is distributed for first terminal and second terminal.
If the RRU103 from first terminal with communication connection relationship and the RRU103 with third terminal with communication connection are different, i.e. first terminal and third terminal are under different RRU coverings, in this case, then the downlink resource of maximal degree of coincidence is distributed for first terminal and third terminal.Specifically, if desired distributing the downlink resource of same size for first terminal and third terminal, then the identical downlink resource of resource block location is distributed for first terminal and third terminal；If desired the size of the downlink resource distributed for first terminal and third terminal is different, then the resource block location distributed for first terminal and third terminal is overlapped most as far as possible.
Step 203, BBU101 send communication connection relationship, the distribution information of M group downlink data and M group downlink resource to RHUB102, send for RHUB102 to any one RRU103: with any one RRU103 with the corresponding downlink data of terminal communicated to connect and downlink resource.RHUB102 receives communication connection relationship, the distribution information of M group downlink data and M group downlink resource that BBU101 is sent, wherein a corresponding one group of downlink data of terminal and one group of downlink resource.
Step 204, RHUB102 combine the downlink resource and downlink data pending to each RRU103, and sent respectively to each RRU103 according to communication connection relationship, the distribution information of M group downlink data and M group downlink resource.Wherein, RHUB102 is sent to any one RRU103 has the corresponding downlink data of terminal and downlink resource communicated to connect with any one RRU103.
Optionally, in step 201, BBU101 obtains the communication connection relationship between M terminal and L RRU103, can be, but not limited to be accomplished by the following way:
BBU101 listens to the cyclical signal that RHUB102 is reported, wherein RHUB102 successively will be transmitted to BBU101, the identification information of cyclical signal carried terminal by received cyclical signal on each RRU103 according to poll order；
BBU101 is more than setting intensity whenever listening to the received cyclical signal on a RRU103
When threshold value, determine between the corresponding terminal of identification information and the RRU103 currently listened to for the terminal that the cyclical signal currently listened to carries that there is communication connection.
The method for sending data by base station shown in Fig. 2, the resource allocation information and respective impact data of the terminal under its covering are only sent to each RRU, in this way, it can be overlapped to greatest extent to the resource distribution location of the terminal notification under different RRU covering, reduce resource occupation, further reduces the interference to adjacent area.For the RRU in the same cell, more resources can be saved, for distributing to more terminals, realize the space division multiplexing in same cell.
Method provided by the embodiments of the present application is described in further detail below with reference to specific application scenarios.
Based on system architecture shown in FIG. 1, as shown in Figure 3, it is assumed that L=3, RRU pRRU, the pRRU in the same cell are respectively pRRU1, pRRU2 and pRRU3, are indicated to dispatch terminal with UE1, UE2, UE3.Under this application scenarios, send data method it is specific it is following 1)~4) as described in.
1) the communication connection relationship between each terminal and each pRRU is obtained.
Terminal indicates there is communication connection between terminal and pRRU under the covering of pRRU.The communication connection of each terminal and pRRU form communication connection relationship.Specifically, terminal is after accessing network, base station can give terminal collocating uplink reference signal (Sounding Reference Symbol, SRS) resource, terminal periodically can send SRS signal to place pRRU in the SRS resource of distribution, and the SRS signal received is sent to RHUB by each pRRU.
In the embodiment of the present application, RHUB and be no longer to be reported to BBU after being combined SRS signal that each pRRU is sent by radio frequency, but, a SRS period, the SRS signal that RHUB only reports a pRRU to receive is to BBU, in this way, by way of poll, in a polling cycle, each pRRU SRS signal received can be reported and be finished.
The SRS signal intensity that BBU is received according to each pRRU judges the communication connection relationship between each terminal and each pRRU.For example, BBU receives the SRS signal of UE1, and SRS signal intensity is more than setting intensity threshold, illustrates UE1 in the coverage area of pRRU1 on the poll order that pRRU1 is reported, it may also be said to, pRRU1 is the work pRRU of UE1.If UE1 is only on pRRU1
There is signal when report, illustrates UE1 only in the coverage area of pRRU1.In another example on the poll order that pRRU1 and pRRU2 are reported, BBU receives the SRS signal of UE2, and SRS signal intensity is more than setting intensity threshold, illustrates UE2 not only in the coverage area of pRRU1, also in the coverage area of pRRU2.It may also be said that pRRU1 and pRRU2 are the work pRRU of UE2.
For example, the relationship of UE and its work pRRU that BBU is obtained are as shown in table 1.
Table 1
| Terminal | Work pRRU |
| UE1 | pRRU1 |
| UE2 | pRRU1、pRRU2 |
| UE3 | pRRU3 |
2) BBU dispatches each terminal on frequency domain, is each terminal distribution downlink resource, and generate the downlink data pending to each terminal.
For convenience of description, it is assumed that current assignable resource block has 8, the serial number of each resource block with 1,2 ..., 8 indicate.Specific allocation of downlink resource and the mode of downlink data can be as described below.
BBU is scheduled on frequency domain first according to normal dispatch mode, gives the good downlink resource of each terminal distribution.For example, it is assumed that distributing resource block 3,4 for UE1, resource block 5 is distributed for UE2, distributes resource block 6,7 and 8 for UE3.Generating one group of downlink data to be sent for UE1 is a, b.Generating one group of downlink data to be sent for UE2 is c.Generating one group of downlink data to be sent for UE3 is d, e, f.
3) after the completion of dispatching, BBU, according to the communication connection relationship of each terminal and pRRU, is determined to the downlink resource position sent each pRRU and downlink data according to table 1.
Specifically, it is first determined the downlink data sent to each pRRU.As shown in figure 5, UE1 and UE2 have communication connection with pRRU1, therefore only need to send the corresponding downlink data of UE1 and UE2 to pRRU1, i.e. transmission downlink data a, b, c.UE2 only has communication connection with pRRU2, therefore only needs to send the corresponding downlink data of UE2 to pRRU2, i.e. transmission downlink data c.UE3 only has communication connection with pRRU3, therefore only needs to send the corresponding downlink data of UE3 to pRRU3, that is, sends lower line number
According to d, e, f.
Further, it is determined that the downlink resource position sent to each pRRU.Since BBU sends the corresponding downlink data c of UE2 to pRRU1 and pRRU2, the downlink resource position that downlink data c is occupied need to be identical, for example, can be the source material block 5 of UE2 distribution according to normal dispatch mode according to BBU.A kind of optional embodiment, the downlink resource sent to pRRU1 are the initially allocated downlink resource 3,4,5 that UE1 and UE2 is occupied；The downlink resource sent to pRRU2 is the initially allocated downlink resource 5 that UE2 is occupied；The downlink resource position sent to pRRU3 moves on to the downlink resource position highest position of registration with other two pRRU, i.e., 3,4,5.
To sum up, the relations of distribution of the downlink resource and downlink data that finally determine are as shown in figure 5, pRRU1 corresponds to downlink resource 3,4,5, downlink data a, b, c；PRRU2 corresponds to downlink resource 5, downlink data c；PRRU3 corresponds to downlink resource 3,4,5, downlink data d, e, f.
In this way, no longer 3 are sent to each pRRU like that traditional mode, 4, 5, 6, 7, the downlink data of 8 this six downlink resources and corresponding three terminals whole, but the corresponding part downlink data of terminal under its covering is only sent to each pRRU, and the terminal under each pRRU covering is made to occupy downlink resource registration highest by the position of mobile downlink resource, unnecessary invalid transmission can be reduced, avoid the wasting of resources, and the downlink resource by saving, the capacity being able to ascend in the same cell, further, it is reduced due to occupying resource, to reduce the interference to adjacent area.
It is of course also possible to the downlink resource for not distributing the method for adjusting position again according to normal dispatch mode according to above-mentioned elder generation, but directly finally being used for each terminal distribution.For example, distributing resource block 3,4 for UE1, resource block 5 is distributed for UE2, distributes resource block 3,4 and 5 for UE3.
4) as shown in fig. 6, BBU will issue RHUB for the downlink resource of each terminal distribution and downlink data, RHUB recombinates data according to the method for salary distribution of BBU.And it is handed down to each pRRU respectively.Each terminal receives downlink data on corresponding downlink resource respectively.
To sum up, transmission data method provided by the embodiments of the present application can realize spatial reuse in the case where not increasing base-band resource, promote cell downlink throughput rate；And according to terminal location situation, corresponding data is targetedly issued, the interference to adjacent area is reduced, promotes performance of the entire network.
Based on the same inventive concept, as shown in fig. 7, the embodiment of the present application provides a kind of Base-Band Processing list
Member 700, comprising:
Acquiring unit 701, for obtaining the communication connection relationship between M terminal and L RRU in cell；
Allocation unit 702 for being generated as M terminal distribution M group downlink resource, and generates the distribution information to M terminal M group downlink data to be sent, wherein a terminal corresponds to one group of downlink resource and one group of downlink data, M >=1, M are positive integer；
Transmission unit 703 is sent for RHUB to any one RRU: for sending communication connection relationship, the distribution information of M group downlink data and M group downlink resource to RHUB with any one RRU with the corresponding downlink data of terminal communicated to connect and downlink resource.
Optionally, allocation unit 702 is used for:
If the first terminal and second terminal in M terminal have communication connection with the same RRU, different downlink resources is distributed for first terminal and second terminal；
If the RRU from first terminal with communication connection relationship and the RRU with third terminal with communication connection are different, the downlink resource of maximal degree of coincidence is then distributed for first terminal and third terminal, third terminal is any terminal in M terminal in addition to first terminal and second terminal.
Optionally, further include determination unit 704, for after obtaining communication connection relationship, before generating and distributing information, according to communication connection relationship, calculate and at least two RRU all have communication connection terminal number and M ratio；And determine that ratio is less than setting ratio threshold value.
Optionally, acquiring unit 701 is used for:
Listen to the cyclical signal that RHUB is reported, wherein RHUB successively will be transmitted to acquiring unit, the identification information of cyclical signal carried terminal by received cyclical signal on each RRU according to poll order；
Whenever listening to when received cyclical signal on a RRU is more than setting intensity threshold, determine between the corresponding terminal of identification information and the RRU currently listened to for the terminal that the cyclical signal currently listened to carries that there is communication connection.
Based on the same inventive concept, as shown in figure 8, the embodiment of the present application also provides a kind of Remote Radio Unit hubs 800, comprising:
Receiving unit 801, M terminal in cell for receiving BBU transmission and the communication connection relationship between L RRU, the distribution information of M group downlink data and M group downlink resource, wherein a corresponding one group of downlink data of terminal and one group of downlink resource, M >=1, M are positive integer；
Data combination unit 802, communication connection relationship, M group downlink data and distribution information for being received according to receiving unit 801, combines the downlink resource and downlink data pending to each RRU；
Transmission unit 803, the downlink resource and downlink data pending to each RRU for combining data combination unit are sent to each RRU respectively；
Wherein, transmission unit 803 is sent to any one RRU has the corresponding downlink data of terminal and downlink resource communicated to connect with any one RRU.
Based on the same inventive concept, as shown in Figure 9, the embodiment of the present application provides a kind of baseband processing unit 900, including transceiver 901, processor 902, memory 903, optionally, it further include bus 904, transceiver 901, processor 902, memory 903 are connect with bus 904, wherein store batch processing in memory 903, processor 902 is for calling the program stored in the memory 903, the following operation of execution:
It is generated as M terminal distribution M group downlink resource, and generates the distribution information to M terminal M group downlink data to be sent, wherein a terminal corresponds to one group of downlink resource and one group of downlink data, M >=1, M are positive integer；
Communication connection relationship, the distribution information of M group downlink data and M group downlink resource are sent to RHUB, is sent for RHUB to any one RRU: with any one RRU with the corresponding downlink data of terminal communicated to connect and downlink resource.
Optionally, processor 902 is used for:
If the first terminal and second terminal in M terminal have communication connection with the same RRU, different downlink resources is distributed for first terminal and second terminal；
If the RRU from first terminal with communication connection relationship and the RRU with third terminal with communication connection are different, the downlink resource of maximal degree of coincidence is then distributed for first terminal and third terminal, third terminal is any terminal in M terminal in addition to first terminal and second terminal.
Optionally, processor 902 is also used to after obtaining communication connection relationship, distributes information generating
Before, according to communication connection relationship, calculate at least two RRU all have communication connection terminal number and M ratio；And determine that ratio is less than setting ratio threshold value.
Optionally, processor 902 is also used to:
Listen to the cyclical signal that RHUB is reported, wherein RHUB successively will be transmitted to acquiring unit, the identification information of cyclical signal carried terminal by received cyclical signal on each RRU according to poll order；
Whenever listening to when received cyclical signal on a RRU is more than setting intensity threshold, determine between the corresponding terminal of identification information and the RRU currently listened to for the terminal that the cyclical signal currently listened to carries that there is communication connection
Processor 902 can be central processing unit (central processing unit, CPU), the combination of network processing unit (network processor, NP) or CPU and NP.
Processor 902 can further include hardware chip.Above-mentioned hardware chip can be specific integrated circuit (application-specific integrated circuit, ASIC), programmable logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices (complex programmable logic device, CPLD), field programmable gate array (field-programmable gate array, FPGA), Universal Array Logic (generic array logic, GAL) or any combination thereof.
Memory 903 may include volatile memory (volatile memory), such as random access memory (random-access memory, RAM)；Memory 903 also may include nonvolatile memory (non-volatile memory), such as flash memory (flash memory), hard disk (hard disk drive, HDD) or solid state hard disk (solid-state drive, SSD)；Memory 903 can also include the combination of the memory of mentioned kind.
It should be noted that the connection type in Fig. 9 is only a kind of example, it is also possible to other possible connection types.
Based on the same inventive concept, as shown in Figure 10, the embodiment of the present application provides a kind of Remote Radio Unit hub 1000, including transceiver 1001, processor 1002, memory 1003, optionally, it further include bus 1004, transceiver 1001, processor 1002, memory 1003 are connect with bus 1004
Wherein, batch processing is stored in memory 1003, processor 1002 is for calling the program stored in the memory 1003, the following operation of execution:
M terminal in the cell that BBU is sent and the communication connection relationship between L RRU, the distribution information of M group downlink data and M group downlink resource are received by transceiver 1001, wherein, the corresponding one group of downlink data of one terminal and one group of downlink resource, M >=1, M are positive integer；
According to communication connection relationship, M group downlink data and the distribution information received, the downlink resource and downlink data pending to each RRU are combined；
It is sent respectively to each RRU by the downlink resource and downlink data pending to each RRU that transceiver 1001 combines data combination unit；
Wherein, transceiver 1001 is sent to any one RRU has the corresponding downlink data of terminal and downlink resource communicated to connect with any one RRU.
Processor 1002 can be central processing unit (central processing unit, CPU), the combination of network processing unit (network processor, NP) or CPU and NP.
Processor 1002 can further include hardware chip.Above-mentioned hardware chip can be specific integrated circuit (application-specific integrated circuit, ASIC), programmable logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices (complex programmable logic device, CPLD), field programmable gate array (field-programmable gate array, FPGA), Universal Array Logic (generic array logic, GAL) or any combination thereof.
Memory 1003 may include volatile memory (volatile memory), such as random access memory (random-access memory, RAM)；Memory 1003 also may include nonvolatile memory (non-volatile memory), such as flash memory (flash memory), hard disk (hard disk drive, HDD) or solid state hard disk (solid-state drive, SSD)；Memory 1003 can also include the combination of the memory of mentioned kind.
It should be noted that the connection type in Figure 10 is only a kind of example, it is also possible to other possible connection types.
Present invention also provides a kind of base stations, including BBU, RHUB and positioned at the L of the same cell
A RRU, wherein the BBU is connect with the RHUB, and the L RRU is connect with the RHUB, and L >=2, L are positive integer.BBU can be equipment provided by the corresponding embodiment of Fig. 7, Fig. 9.RHUB can be equipment provided by the corresponding embodiment of Fig. 8, Figure 10.The method that the base station is used to execute the corresponding embodiment of Fig. 2.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program product.Therefore, the form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application.Moreover, the form for the computer program product implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) that one or more wherein includes computer usable program code can be used in the application.
The application is that reference is described according to the flowchart and/or the block diagram of the method for the embodiment of the present application, equipment (system) and computer program product.It should be understood that the combination of process and/or box in each flow and/or block and flowchart and/or the block diagram that can be realized by computer program instructions in flowchart and/or the block diagram.These computer program instructions be can provide to the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate a machine, so that generating by the instruction that computer or the processor of other programmable data processing devices execute for realizing the device for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, to be able to guide in computer or other programmable data processing devices computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates the manufacture including command device, which realizes the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that series of operation steps are executed on a computer or other programmable device to generate computer implemented processing, thus the step of instruction executed on a computer or other programmable device is provided for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.
Although the preferred embodiment of the application has been described, once a person skilled in the art knows
Basic creative concept, then additional changes and modifications may be made to these embodiments.So it includes preferred embodiment and all change and modification for falling into the application range that the following claims are intended to be interpreted as.
Obviously, those skilled in the art can carry out various modification and variations without departing from the spirit and scope of the embodiment of the present application to the embodiment of the present application.If then the application is also intended to include these modifications and variations in this way, these modifications and variations of the embodiment of the present application belong within the scope of the claim of this application and its equivalent technologies.
Claims (10)
- A kind of method that base station sends data, it is characterized in that, the base station includes baseband processing unit BBU, Remote Radio Unit hub RHUB and the L radio frequency remote unit RRU positioned at the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer；The described method includes:The BBU obtains the communication connection relationship between M terminal and the L RRU in the cell；The BBU is generated as the M terminal distribution M group downlink resource, and generates the distribution information to M terminal M group downlink data to be sent, wherein a terminal corresponds to one group of downlink resource and one group of downlink data, M >=1, M are positive integer；The BBU sends the distribution information of the communication connection relationship, the M group downlink data and the M group downlink resource to the RHUB, sends for the RHUB to any one RRU: having the corresponding downlink data of terminal and downlink resource of communication connection with any one described RRU.
- The method as described in claim 1, which is characterized in that the BBU is the M terminal distribution M group downlink resource according to following allocation rule:If the first terminal and second terminal in the M terminal have communication connection with the same RRU, different downlink resources is distributed for the first terminal and the second terminal；If the RRU from the first terminal with communication connection relationship and the RRU with third terminal with communication connection are different, the downlink resource of maximal degree of coincidence is then distributed for the first terminal and the third terminal, the third terminal is any terminal in the M terminal in addition to first terminal and second terminal.
- It is method according to claim 1 or 2, which is characterized in that the BBU is after obtaining the communication connection relationship, before generating the distribution information, further includes:The BBU according to the communication connection relationship, calculate at least two RRU all have communication connection terminal number and M ratio；AndDetermine that the ratio is less than setting ratio threshold value.
- Method as claimed in any one of claims 1 to 3, which is characterized in that the BBU obtains institute State the communication connection relationship between M terminal and the L RRU, comprising:The BBU listens to the cyclical signal that the RHUB is reported, wherein the RHUB successively will be transmitted to the BBU, the identification information of the cyclical signal carried terminal by received cyclical signal on each RRU according to poll order；The BBU determines between the corresponding terminal of identification information and the RRU currently listened to for the terminal that the cyclical signal currently listened to carries there is communication connection whenever listening to when received cyclical signal on a RRU is more than setting intensity threshold.
- A kind of method that base station sends data, it is characterized in that, the base station includes baseband processing unit BBU, Remote Radio Unit hub RHUB and the L radio frequency remote unit RRU positioned at the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer；The described method includes:The RHUB receives M terminal in the cell that the BBU is sent and the communication connection relationship between the L RRU, the distribution information of M group downlink data and M group downlink resource, wherein, the corresponding one group of downlink data of one terminal and one group of downlink resource, M >=1, M are positive integer；The RHUB combines the downlink resource and downlink data pending to each RRU according to the communication connection relationship, the M group downlink data and the distribution information, and is sent respectively to each RRU；Wherein, the RHUB is sent to any one RRU has the corresponding downlink data of terminal and downlink resource communicated to connect with any one described RRU.
- A kind of baseband processing unit BBU, it is characterized in that, the base station includes the BBU, Remote Radio Unit hub RHUB and the L radio frequency remote unit RRU positioned at the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer；The BBU includes:Acquiring unit, for obtaining the communication connection relationship between M terminal and the L RRU in the cell；Allocation unit for being generated as the M terminal distribution M group downlink resource, and generates the distribution information to M terminal M group downlink data to be sent, wherein a terminal corresponds to one group of downlink resource and one group of downlink data, M >=1, M are positive integer；Transmission unit, it for sending the distribution information of the communication connection relationship, the M group downlink data and the M group downlink resource to the RHUB, is sent for the RHUB to any one RRU: there is the corresponding downlink data of the terminal of communication connection and downlink resource with any one described RRU.
- BBU as claimed in claim 6, which is characterized in that the allocation unit is used for:If the first terminal and second terminal in the M terminal have communication connection with the same RRU, different downlink resources is distributed for the first terminal and the second terminal；If the RRU from the first terminal with communication connection relationship and the RRU with third terminal with communication connection are different, the downlink resource of maximal degree of coincidence is then distributed for the first terminal and the third terminal, the third terminal is any terminal in the M terminal in addition to first terminal and second terminal.
- BBU as claimed in claims 6 or 7, which is characterized in that further include determination unit, for after obtaining the communication connection relationship, before generating the distribution information, according to the communication connection relationship, calculate and at least two RRU all have communication connection terminal number and M ratio；And determine that the ratio is less than setting ratio threshold value.
- Such as the described in any item BBU of claim 6~8, which is characterized in that the acquiring unit is used for:Listen to the cyclical signal that the RHUB is reported, wherein the RHUB successively will be transmitted to the acquiring unit, the identification information of the cyclical signal carried terminal by received cyclical signal on each RRU according to poll order；Whenever listening to when received cyclical signal on a RRU is more than setting intensity threshold, determine between the corresponding terminal of identification information and the RRU currently listened to for the terminal that the cyclical signal currently listened to carries that there is communication connection.
- A kind of Remote Radio Unit hub RHUB, it is characterized in that, the base station includes baseband processing unit BBU, the RHUB and the L radio frequency remote unit RRU positioned at the same cell, wherein, the BBU is connect with the RHUB, the L RRU is connect with the RHUB, and L >=2, L are positive integer；The RHUB includes:Receiving unit, for receiving M terminal in the cell that the BBU is sent and the communication connection relationship between the L RRU, the distribution information of M group downlink data and M group downlink resource, wherein a corresponding one group of downlink data of terminal and one group of downlink resource, M >=1, M are positive integer；Data combination unit, the communication connection relationship, the M group downlink data and the distribution information for being received according to the receiving unit, combines the downlink resource and downlink data pending to each RRU；Transmission unit, the downlink resource and downlink data pending to each RRU for combining the data combination unit are sent to each RRU respectively；Wherein, the transmission unit is sent to any one RRU has the corresponding downlink data of terminal and downlink resource communicated to connect with any one described RRU.
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| PCT/CN2016/107527 WO2018094746A1 (en) | 2016-11-28 | 2016-11-28 | Method for base station to send data, bbu and rhub |
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| CN115150961A (en) * | 2022-09-01 | 2022-10-04 | 新华三技术有限公司 | Data transmission method, device and base station |
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