CN109417832A

CN109417832A - Uplink data transmission method, RHUB and BBU

Info

Publication number: CN109417832A
Application number: CN201680086899.0A
Authority: CN
Inventors: 彭劲东
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-30
Filing date: 2016-11-30
Publication date: 2019-03-01
Also published as: WO2018098695A1

Abstract

This application provides a kind of uplink data transmission method, RHUB and BBU, the RHUB obtains the time of reception from the first PRRU upstream data sent, when being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data is reported to corresponding baseband processing unit BBU by the RHUB；Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.Using uplink data transmission method, RHUB provided by the embodiment of the present application and BBU, it is adjacent and belong to the PRRU of different community and transmit upstream data in different TTI that coverage area may be implemented, so as to avoid the interference between neighboring community, reduce the average interference lifting between neighboring community, SINR is improved, cell throughput is improved.

Description

Uplink data transmission method, RHUB and BBU

Technical field

This application involves field of communication technology more particularly to uplink data transmission methods, RHUB and BBU.

Background technique

LampSite Indoor Coverage Solution is being combined+independent demodulation in radio frequency " by way of realize multiple micro- Remote Radio Unit (pico radio remote unit, pRRU) altogether cell.Wherein, multiple pRRU realize that radio frequency is combined on remote signaling retransmission unit RHUB, and each cell realizes independent demodulation.Each RHUB can manage at least one cell, and upstream data can be reported to baseband processing unit BBU by managing the RHUB of the cell after the upstream data for receiving user equipment transmission by multiple pRRU in each cell.

But in practical applications, the first pRRU in first community receives powerful Cell Edge User (Cell Edge User, when the upstream data A CEU) reported, due to high-power CEU send signal transmission distance farther out, so in the second community adjacent with first community coverage area, there may be closer 2nd pRRU of the first pRRU of distance and also receive upstream data A, here second community and first community can be managed by same RHUB, can also be managed by different RHUB；However the 2nd pRRU is mainly used for receiving the CEU or Cell Center User (Cell Center User in second community, CCU) the upstream data B sent, so, in the 2nd pRRU reporting uplink data, upstream data A and upstream data B can be reported to RHUB together, upstream data A and upstream data B are reported to BBU again by RHUB together.

When upstream data B and upstream data A are reported to BBU together by RHUB, since upstream data a-signal intensity is stronger, the signal for carrying upstream data A interferes the signal of carrying upstream data B, the average interference between neighboring community is caused to be lifted (interference over thermal, IoT) larger, so that Signal to Interference plus Noise Ratio (signal to interference plus noise ratio, SINR) is lower, cell throughput is lower.

Summary of the invention

This application provides a kind of uplink data transmission method, RHUB and BBU, to avoid the interference between neighboring community, reduce the average interference lifting between neighboring community, improve SINR, improve cell throughput.

In a first aspect, this application provides a kind of uplink data transmission methods, which is characterized in that this method is applied to the remote signaling retransmission unit RHUB in distributed system, comprising at least in the cell each managed by the RHUB Two PRRU groups include at least one PRRU in each PRRU group, which comprises

The RHUB was obtained from the time of reception of the first PRRU upstream data sent, and the first PRRU is the PRRU in the cell of RHUB management；

When being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data is reported to corresponding baseband processing unit BBU by the RHUB；

Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.

With reference to first aspect, in a first possible implementation of that first aspect, the method also includes:

When the RHUB determines that the UE is default UE corresponding with the first PRRU, the RHUB obtains the time of reception from the first PRRU upstream data sent.

With reference to first aspect, in a second possible implementation of that first aspect, the method also includes:

When the RHUB receives the detection reference signal that the first PRRU is reported, the detection reference signal is what the UE that the first PRRU is received was reported, the detection reference signal is reported to corresponding BBU by the RHUB, so that the BBU determines the corresponding relationship between the first PRRU and UE according to the detection reference signal.

With reference to first aspect, in first aspect in the third possible implementation, the method also includes:

The RHUB receives the notification message comprising the first mapping table and the second mapping table, and the group mark comprising multiple groups PRRU group and the corresponding relationship between TTI in first mapping table, each TTI correspond to the group mark of at least one PRRU group；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.

Second aspect, the application provide a kind of uplink data transmission method, manage multiple remote signaling retransmission unit RHUB applied to the first baseband processing unit BBU, the first BBU in distributed system, which comprises

First BBU obtains the location information of multiple first PRRU in each cell；

Multiple first PRRU in each cell are divided at least two PRRU groups according to the location information of the multiple first PRRU by the first BBU；

Location information of first BBU according to the first PRRU in each PRRU group, respectively each determining group mark of the PRRU group, wherein coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference；

First BBU determines Transmission Time Interval TTI corresponding with each described group of mark respectively, and determination includes First mapping table of the corresponding relationship between group mark and TTI.

In conjunction with second aspect, in second aspect in the first possible implementation, the method also includes:

First BBU receives the detection reference signal that multiple first PRRU are sent in RHUB management cell, and the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU；

First BBU determines corresponding first PRRU of each UE according to the multiple detection reference signals received, and determines the second mapping table comprising the corresponding relationship between the first PRRU and UE.

In conjunction with second aspect, in second of second aspect possible implementation, the first BBU determines corresponding first PRRU of each UE according to the multiple detection reference signals received, comprising:

When receiving the detection reference signal of multiple first PRRU transmissions from same UE, the first BBU determines that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE.

In conjunction with second aspect, in second aspect in the third possible implementation, the method also includes:

First BBU sends the notification message comprising first mapping table and second mapping table to the RHUB.

In conjunction with second aspect, in the 4th kind of possible implementation of second aspect, the method also includes:

First BBU sends synchronization message by first PRRU of the RHUB into multiple cells, and the 2nd BBU into distributed system sends synchronization message, synchronizing information is carried in the synchronization message, so that multiple first PRRU under the first BBU are synchronous, and the 2nd BBU is made to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple 2nd PRRU under the first BBU using the synchronizing information.

In conjunction with second aspect, in the 5th kind of possible implementation of second aspect, multiple first PRRU in each cell are divided at least two PRRU groups according to the location information of the multiple first PRRU by the first BBU, comprising:

Multiple first PRRU in each cell are divided into two PRRU groups according to the location information of the multiple first PRRU by the first BBU, wherein the corresponding first group of mark of one of PRRU group in each cell, the corresponding second group of mark of another PRRU group；

First BBU determines Transmission Time Interval TTI corresponding with each described group of mark respectively, comprising:

First BBU determines that TTI corresponding with first group of mark is odd number TTI, and determines that TTI corresponding with second group of mark is even number TTI.

The third aspect, the application provide a kind of uplink data transmission method, are applied to the second baseband processing unit BBU, comprising:

2nd BBU receives the synchronization message for the carrying synchronizing information that the first BBU is sent；

2nd BBU realizes that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.

Fourth aspect, the application provide a kind of remote signaling retransmission unit RHUB, PRRU group are contained at least two in the cell of the RHUB management, includes at least one PRRU in each PRRU group, described device includes:

Processing module, for obtaining the time of reception from the first PRRU upstream data sent, the first PRRU is the PRRU in the cell of RHUB management；

Sending module, for when being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data to be reported to corresponding baseband processing unit BBU；Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.

In conjunction with fourth aspect, in fourth aspect in the first possible implementation, the processing module is also used to when determining the UE is default UE corresponding with the first PRRU, obtains the time of reception from the first PRRU upstream data sent.

In conjunction with fourth aspect, in second of fourth aspect possible implementation, the sending module, it is also used to when receiving the detection reference signal that the first PRRU is reported, the detection reference signal is what the UE that the first PRRU is received was reported, the detection reference signal is reported into corresponding BBU, so that the BBU determines the corresponding relationship between the first PRRU and UE according to the detection reference signal.

In conjunction with fourth aspect, in fourth aspect in the third possible implementation, the RHUB further include:

Receiving module, for receiving the notification message comprising the first mapping table and the second mapping table, group mark in first mapping table comprising multiple groups PRRU group and the corresponding relationship between TTI, each TTI correspond to the group mark of at least one PRRU group；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.

5th aspect, the application provide a kind of baseband processing unit BBU, and the BBU manages multiple remote signaling forwardings Unit R HUB, the BBU include:

Receiving module, for receiving the location information of multiple first PRRU in each cell；

Processing module, for obtaining the location information of multiple first PRRU in each cell；According to the location information of the multiple first PRRU, multiple first PRRU in each cell are divided at least two PRRU groups；According to the location information of the first PRRU in each PRRU group, respectively each PRRU group determines group mark, wherein coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference；Transmission Time Interval TTI corresponding with each described group of mark is determined respectively, and determines the first mapping table comprising the corresponding relationship between group mark and TTI.

In conjunction with the 5th aspect, the 5th aspect the first possible implementation in, the receiving module, it is also used to receive the detection reference signal that multiple first PRRU are sent in RHUB management cell, the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU；

The processing module is also used to determine corresponding first PRRU of each UE according to the multiple detection reference signals received, and determines the second mapping table comprising the corresponding relationship between the first PRRU and UE.

In conjunction with the 5th aspect, in the 5th second of possible implementation of aspect, the processing module, it is also used to determine that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE when receiving the detection reference signal of multiple first PRRU transmissions from same UE.

In conjunction with the 5th aspect, the 5th aspect the third possible implementation in, the BBU further include:

Sending module, for sending the notification message comprising first mapping table and second mapping table to the RHUB.

In conjunction with the 5th aspect, in the 5th the 4th kind of possible implementation of aspect, the sending module, it is also used to the first PRRU by the RHUB into multiple cells and sends synchronization message, and the 2nd BBU into distributed system sends synchronization message, synchronizing information is carried in the synchronization message, so that multiple first PRRU under the first BBU are synchronous, and the 2nd BBU is made to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple 2nd PRRU under the first BBU using the synchronizing information.

In conjunction with the 5th aspect, in the 5th the 5th kind of possible implementation of aspect, the processing module, it is also used to the location information according to the multiple first PRRU, multiple first PRRU in each cell are divided into two PRRU groups, wherein, the corresponding first group of mark of one of PRRU group in each cell, the corresponding second group of mark of another PRRU group；It determines that TTI corresponding with first group of mark is odd number TTI, and determines that TTI corresponding with second group of mark is even number TTI.

6th aspect, the application provide a kind of baseband processing unit BBU, comprising:

Receiving module, the synchronization message of the carrying synchronizing information for receiving the first BBU transmission；

Processing module, for realizing that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.

Using uplink data transmission method, RHUB provided by the embodiment of the present application and BBU, since RHUB is only located at specific TTI in the time of reception of upstream data, when namely identifying corresponding TTI with the group of PRRU group belonging to the first PRRU, the upstream data is reported into corresponding baseband processing unit BBU, but due to coverage area is adjacent and belong to different community PRRU group the corresponding different TTI of group mark；Therefore coverage area is adjacent and belongs to the PRRU of different community in different TTI transmission upstream datas, so as to avoid the interference between neighboring community, reduces the average interference lifting between neighboring community, improves SINR, improve cell throughput.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the application, the drawings to be used in the embodiments are briefly described below, it should be apparent that, for those of ordinary skills, without any creative labor, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of schematic diagram of the network architecture of distributed system shown according to an exemplary embodiment；

Fig. 2 is the schematic diagram of the network architecture of closed loop shown according to an exemplary embodiment；

Fig. 3 is a kind of flow chart of uplink data transmission method shown according to an exemplary embodiment；

Fig. 4 is a kind of schematic diagram of network architecture for transmitting upstream data shown according to an exemplary embodiment；

Fig. 5 is the schematic diagram of the network architecture of another transmitting uplink data shown according to an exemplary embodiment；

Fig. 6 is the structural schematic diagram of RHUB shown according to an exemplary embodiment；

Fig. 7 is the structural schematic diagram of the first BBU shown according to an exemplary embodiment；

Fig. 8 is the structural schematic diagram of the 2nd BBU shown according to an exemplary embodiment；

Fig. 9 is the structural schematic diagram of RHUB provided in an embodiment of the present invention；

Figure 10 is the structural schematic diagram of BBU provided in an embodiment of the present invention.

Specific embodiment

Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.In the following description when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Embodiment described in following exemplary embodiment does not represent all embodiments consistented with the present invention.On the contrary, they are only the examples of consistent with some aspects of the invention as detailed in the appended claims device and method.

Technical solution in order to enable those skilled in the art to better understand the present invention, following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is described.

Uplink data transmission method provided in an embodiment of the present invention can be applied to LTE (Long Term Evolution, long term evolution) communication system, such as: TDD-LTE (Time Division Duplex Long Term Evolution, timesharing long term evolution) or FDD-LTE (Frequency Division Duplex Long Term Evolution, frequency division duplex long term evolution), also other communication systems be can be applied to, such as: WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access), TD-SCDM A (Time Division-Synchronous Code Division Multiple Access, TD SDMA), GSM (Global System for Mobile Communication, global system for mobile communications) and 5G (Fifth Generation).The above-mentioned multiple systems enumerated are only the schematically illustrate of the embodiment of the present invention, and this method provided by the invention can also be applied to other suitable communication systems, and the present invention is not intended to limit this.

The embodiment of the present invention is illustrated by taking LTE communication system as an example.As shown in Figure 1, Fig. 1 is a kind of adaptable schematic diagram of the network architecture of distributed system of uplink data transmission method provided in an embodiment of the present invention, it include: at least two baseband processing unit BBU 1 in Fig. 1, multiple remote signaling retransmission unit RHUB 2 and multiple micro- RF remote unit PRRU 3, at least one RHUB is connected under each BBU, at least two PRRU are connected under each RHUB, wherein, BBU is used for from different RHUB and belonging to the upstream data of same RRU group and be weighted summation, RHUB is for being weighted summation to the upstream data from same RRU group, PRRU is used to receive the upstream data that the user equipment (UE) 4 in its coverage area is sent.

At least two PRRU under RHUB form at least one cell 5, different arrangement modes can be arranged in the overlay area of at least one cell according to application scenarios difference, the shape of closed loop can be arranged in, such as: it is round, oval (as shown in Figure 2), rectangle or triangle etc., it can also be uniformly distributed at equal intervals, multiple PRRU in each cell can be divided at least two PRRU groups 6 (dividing several cells in Fig. 2 in the form of straight dotted line), since the overlay area of multiple cells is arranged in the shape of closed loop, so the overlay area of multiple PRRU groups in each cell also constitutes one section of closed loop shape after connecting, it include at least one PRRU in each PRRU group.

In order to solve to interfere larger technical problem in distributed system between neighboring community, as shown in figure 3, in one embodiment of the invention, providing a kind of uplink data transmission method, the described method comprises the following steps.

In step s101, the first BBU sends synchronization message by first PRRU of the RHUB into multiple cells, and the 2nd BBU into distributed system sends synchronization message.

In embodiments of the present invention, synchronizing information is carried in the synchronization message, fiducial time or the time difference between benchmark BBU that synchronizing information can refer to benchmark BBU etc., it is synchronized in order to which multiple first PRRU under the first BBU are realized using the synchronizing information and connecting inner work clock, and the 2nd BBU is set to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU according to the synchronizing information and connecting inner work clock, the method for synchronization may include air interface synchronization, GPS synchronization etc..

In this step, first BBU can send synchronization message to RHUB first, RHUB is after receiving synchronization message, multiple first PRRU connected to it can be sent by synchronization message, be synchronized in this way, multiple first PRRU under the first BBU can be realized according to the synchronizing information carried in synchronization message, simultaneously, first BBU sends synchronization message to the 2nd BBU, so as to be mutually in step between multiple 2nd PRRU under the 2nd BBU, and keeps multiple 2nd PRRU synchronous with multiple first PRRU.

In step s 102, the 2nd BBU receives the synchronization message for the carrying synchronizing information that the first BBU is sent.

In embodiments of the present invention, the 2nd BBU is after receiving synchronization message, multiple 2nd PRRU that can be sent to synchronization message by the RHUB under the 2nd BBU under each RHUB.

In step s 103, the 2nd BBU realizes that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.

In this step, the 2nd BBU can extract the synchronizing information in synchronization message, multiple 2nd PRRU then in conjunction with the work clock inside synchronizing information and the 2nd BBU, under synchronous 2nd BBU.

In step S104, when the RHUB receives the detection reference signal that the first PRRU is reported, the detection reference signal is reported to corresponding BBU by the RHUB.

In embodiments of the present invention, the detection reference signal (SoundingReferenceSignal, SRS) is that the UE in the first PRRU coverage area is reported, and the effect of SRS is, provides the beasurement base of up channel for base station.In general, SRS is sent with the preset period.The corresponding relationship between the first PRRU and UE can be determined according to the detection reference signal in order to BBU by step S104.

In this step, whether RHUB can receive the detection reference signal that any first PRRU is reported with constant testing, when receiving the detection reference signal that any first PRRU is reported, detection reference signal that RHUB can will be received Report to the BBU of the RHUB connection.

In step s105, the first BBU receives the detection reference signal that multiple first PRRU are sent in RHUB management cell.

In embodiments of the present invention, the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU.

In step s 106, the first BBU determines corresponding first PRRU of each UE according to the multiple detection reference signals received, and determines the second mapping table comprising the corresponding relationship between the first PRRU and UE.

In embodiments of the present invention, when UE sends detection reference signal, since distance is different between difference the first PRRU and UE, the signal strength for the detection reference signal that the first PRRU of difference is received can be different, so, the step S106 may include: when receiving the detection reference signal of multiple first PRRU transmissions from same UE, and the first BBU determines that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE.

In step s 107, the first BBU obtains the location information of multiple first PRRU in each cell.

In embodiments of the present invention, the location information storage of each first PRRU to preset storage region or can be stored into preset tables of data in advance, location information, which can refer to, is divided into several plot for actual geographic area in advance, and be each plot setting number, the number of each first PRRU and plot locating for the first PRRU are then established into corresponding relationship and stored.

In this step, the location information of multiple first PRRU in the first available preset memory locations of BBU, alternatively, the also location information etc. of multiple first PRRU in available preset tables of data.

In step S108, multiple first PRRU in each cell are divided at least two PRRU groups according to the location information of the multiple first PRRU by the first BBU.

In this step, first BBU is according to the location information of multiple first PRRU, putting in order clockwise or counter-clockwise of available multiple first PRRU in closed loop, when dividing PRRU group, the first BBU can be divided according to the clock-wise order or sequence counter-clockwise of closed loop.

Assuming that according to sequence counter-clockwise, multiple cells in closed loop under the first BBU are followed successively by cell 1, cell 2 and cell 3, ..., wherein, it include 3 the first PRRU in cell 1, it is respectively as follows: PRRU1, PRRU2 and PRRU3, cell 2 includes 2 the first PRRU, respectively PRRU4 and PRRU5, cell 3 include 4 the first PRRU, respectively PRRU6, PRRU7, PRRU8 and PRRU9, when dividing PRRU group, the quantity that can determine the PRRU group divided in each cell first, can be 2,3 etc., specifically may be set according to actual conditions.

In practical applications, multiple first PRRU in each cell can be divided into two PRRU groups according to the location information of the multiple first PRRU by the first BBU.

When determining each 2 PRRU groups of small Division, the PRRU1 in cell 1 can be divided into PRRU group 1, PRRU2 and PRRU3 are divided into PRRU group 2, can also by cell 1 PRRU1 and PRRU2 be divided into PRRU group 1, PRRU3 is divided into PRRU group 2 etc.；PRRU4 in cell 2 can be divided into PRRU group 1, PRRU5 is divided into PRRU group 2；PRRU6 in cell 3 can be divided into PRRU group 1, PRRU7, PRRU8 and PRRU9 are divided into PRRU group 2, can also by cell 3 PRRU6 and PRRU7 be divided into PRRU group 1, RRU8 and PRRU9 are divided into PRRU group 2 etc..

In practical applications, multiple first PRRU in each cell can be divided into three continuously arranged PRRU groups according to the location information of the multiple first PRRU by the first BBU.

When determining each 3 PRRU groups of small Division, the PRRU1 in cell 1 can be divided into PRRU group 1, PRRU2 is divided into PRRU group 2, and PRRU3 is divided into PRRU group 3 etc.；PRRU4 in cell 2 can be divided into PRRU group 1, PRRU5 is divided into PRRU group 2, and PRRU group 3 is sky etc., can be determines according to actual conditions for empty PRRU group；PRRU6 in cell 3 can be divided into PRRU group 1, PRRU7 is divided into PRRU group 2, and PRRU8 and PRRU9 are divided into PRRU group 3, can also by cell 3 PRRU6 and PRRU7 be divided into PRRU group 1, RRU8 is divided into PRRU group 2, and PRRU9 is divided into PRRU group 3 etc..

And so on, multiple cells under the 2nd BBU in closed loop are also divided in this manner, are finished until all cells in closed loop all divide, it should be appreciated that, in order to economize on resources, the quantity for the PRRU group that multiple cells under different BBU determine should be identical.

In step S109, location information of the first BBU according to the first PRRU in each PRRU group, respectively each determining group mark of the PRRU group.

In embodiments of the present invention, coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference, it is also assumed that the group mark of the PRRU group in each cell in same arrangement order is identical, group mark can be A, B and/or C ... ..., it may be 001,002 and/or 003, ..., it can also be I, II and/or III ... ..., it can be determined according to the actual situation, the present invention is here without limitation.

When determining each 2 PRRU groups of small Division, first BBU, which can identify the group of the PRRU group 1 in cell 1, is determined as A, the group mark of PRRU group 2 is determined as B, similarly, the group mark of PRRU group 1 in cell 2 is determined as A, and the group mark of PRRU group 2 is determined as B, and the group mark of the PRRU group 1 in cell 3 is determined as A, the group mark of PRRU group 2 is determined as B ... ....

When determining each 3 PRRU groups of small Division, first BBU, which can identify the group of the PRRU group 1 in cell 1, is determined as 001, the group mark of PRRU group 2 is determined as 002, the group mark of PRRU group 3 is determined as 003, similarly, the group mark of PRRU group 1 in cell 2 is determined as 001, the group mark of PRRU group 2 is determined as 002, the group mark of PRRU group 3 is determined as 003, the group mark of PRRU group 1 in cell 3 is determined as 001, the group mark that the group mark of PRRU group 2 is determined as 002, PRRU group 3 is determined as 003 ... ....

First BBU can by each cell at least two PRRU groups and group mark corresponding relationship each first PRRU is handed down to by RHUB so that the first PRRU in reporting uplink data together transmission group identify etc. information.

In step s 110, the first BBU determines Transmission Time Interval TTI corresponding with each described group of mark respectively, and determines the first mapping table comprising the corresponding relationship between group mark and TTI.

In embodiments of the present invention, Transmission Time Interval (transmission time interval, TTI) is it is considered that 1TTI=1ms.When the corresponding relationship of at least two PRRU groups and group mark in each cell is not handed down to each PRRU by RHUB by the first BBU, the first BBU can also be added in the first corresponding relationship: the corresponding relationship between at least two PRRU groups in each group of mark and each cell.

It in this step, can be respectively that each group of mark determines corresponding TTI, and the first corresponding relationship between foundation group mark and TTI.

When determining each 2 PRRU groups of small Division, first BBU can determine that TTI corresponding with one of group mark is odd number TTI, and determine that TTI corresponding with another group mark is even number TTI, such as: the corresponding TTI of PRRU group 1 is 1ms in cell 1, when the corresponding TTI of PTTU group 2 is 2ms, the corresponding TTI of PRRU group 1 in cell 2 is 1ms, and the corresponding TTI of PRRU group 2 is 2ms ... ....

When determining each 3 PRRU groups of small Division, first BBU can determine that TTI corresponding with the group of PRRU group 1 mark is TTI%3=1, TTI corresponding with the group of PRRU group 2 mark is TTI%3=2, TTI corresponding with the group of PRRU group 3 mark is TTI%3=0, wherein, % is modulo operation, TTI%3=0 is that the remainder that TTI modulus 3 obtains is 0, similarly, TTI%3=1 and TTI%3=2, such as: the corresponding TTI of PRRU group 1 is 1ms in cell 1, the corresponding TTI of PRRU group 2 is 2ms, the corresponding TTI of PRRU group 3 is 3ms, the corresponding TTI of PRRU group 1 in cell 2 is 1ms, the corresponding TTI of PRRU group 2 is the The corresponding TTI of 2ms, PRRU group 3 is 3ms ... ....

In step S111, the first BBU sends the notification message comprising first mapping table and second mapping table to the RHUB.In embodiments of the present invention, the group mark in first mapping table comprising multiple groups PRRU group and the corresponding relationship between TTI, each TTI correspond to the group mark of at least one PRRU group Know；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.

In step S112, the RHUB receives the notification message comprising the first mapping table and the second mapping table.

In step S113, when the RHUB determines that the UE is default UE corresponding with the first PRRU, the RHUB obtains the time of reception from the first PRRU upstream data sent.

In embodiments of the present invention, the first PRRU is the PRRU in the cell of RHUB management.

In this step, RHUB is when receiving the upstream data that any first PRRU is reported, RHUB determines the first PRRU of reporting uplink data according to the upstream data and sends the UE of the upstream data, according to the second mapping table received, judge the UE whether and any default UE corresponding with the first PRRU it is identical, if identical, it can determine that UE is the corresponding default UE of the first PRRU.

In step S114, when being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data is reported to corresponding baseband processing unit BBU by the RHUB.

In embodiments of the present invention, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.

In this step, the RHUB obtains the group mark of PRRU group belonging to the first PRRU, and according to the first mapping table comprising corresponding relationship group between mark and Transmission Time Interval TTI, obtains TTI corresponding with described group of mark.

RHUB can determine corresponding group of mark of the first PRRU according to the first mapping table, and corresponding group of mark of the first PRRU can also be determined according to upstream data, then determine TTI corresponding with group mark according to the first corresponding relationship.

When RHUB receives upstream data, it will record the time of reception for receiving the upstream data, then the time of reception is compared with the TTI determined, such as, when determining TTI is 3ms, it can be determined that whether the time of reception is located in 3ms, if be located in 3ms, it can then determine that the time of reception is located in determining TTI, the upstream data received is reported to the BBU connecting with the RHUB by RHUB.

In practical applications, assuming that the first PRRU in Fig. 1 is followed successively by PRRU1, PRRU2, PRRU3 and PRRU4 according to sequence counter-clockwise, PRRU1 and PRRU2 is respectively PRRU group 001 and PRRU group 002 in a cell, PRRU3 and PRRU4 is respectively PRRU group 001 and PRRU group 002 in another cell, due to including two PRRU groups in each cell, so the corresponding TTI of PRRU group 001 in two cells can be odd number TTI, PRRU group 002 Corresponding TTI is even number TTI, therefore, when odd number TTI arrives, as shown in figure 4, the upstream data received is reported to BBU by RHUB by PRRU1 and PRRU3, when even number TTI arrives, as shown in figure 5, the upstream data received is reported to BBU by RHUB by PRRU2 and PRRU4.

In this way, using uplink data transmission method, RHUB provided by the embodiment of the present application and BBU, since RHUB is only located at specific TTI in the time of reception of upstream data, when namely identifying corresponding TTI with the group of PRRU group belonging to the first PRRU, the upstream data is reported into corresponding baseband processing unit BBU, but due to coverage area is adjacent and belong to different community PRRU group the corresponding different TTI of group mark；Therefore coverage area is adjacent and belongs to the PRRU of different community in different TTI transmission upstream datas, so as to avoid the interference between neighboring community, reduces the average interference lifting between neighboring community, improves SINR, improve cell throughput.

As shown in fig. 6, providing a kind of remote signaling retransmission unit RHUB in another embodiment of the present invention, PRRU group being contained at least two in the cell of the RHUB management, includes at least one PRRU in each PRRU group, described device includes:

Processing module 11, for obtaining the time of reception from the first PRRU upstream data sent, the first PRRU is the PRRU in the cell of RHUB management；

Sending module 12, for when being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data to be reported to corresponding baseband processing unit BBU；Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.

In another embodiment of the present invention, the processing module is also used to when determining the UE is default UE corresponding with the first PRRU, obtains the time of reception from the first PRRU upstream data sent.

In another embodiment of the present invention, the sending module, it is also used to when receiving the detection reference signal that the first PRRU is reported, the detection reference signal is what the UE that the first PRRU is received was reported, the detection reference signal is reported into corresponding BBU, so that the BBU determines the corresponding relationship between the first PRRU and UE according to the detection reference signal.

In another embodiment of the present invention, the RHUB further include:

Receiving module 13, for receiving the notification message comprising the first mapping table and the second mapping table, group mark in first mapping table comprising multiple groups PRRU group and the corresponding relationship between TTI, each TTI correspond to the group mark of at least one PRRU group；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.

As shown in fig. 7, providing a kind of baseband processing unit BBU in another embodiment of the present invention, the BBU manages multiple remote signaling retransmission unit RHUB, and the BBU includes:

Receiving module 21, for receiving the location information of multiple first PRRU in each cell；

Processing module 22, for obtaining the location information of multiple first PRRU in each cell；According to the location information of the multiple first PRRU, multiple first PRRU in each cell are divided at least two PRRU groups；According to the location information of the first PRRU in each PRRU group, respectively each PRRU group determines group mark, wherein coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference；Transmission Time Interval TTI corresponding with each described group of mark is determined respectively, and determines the first mapping table comprising the corresponding relationship between group mark and TTI.

In another embodiment of the present invention, the receiving module, it is also used to receive the detection reference signal that multiple first PRRU are sent in RHUB management cell, the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU；

In another embodiment of the present invention, the processing module, it is also used to determine that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE when receiving the detection reference signal of multiple first PRRU transmissions from same UE.

In another embodiment of the present invention, the BBU further include:

Sending module 23, for sending the notification message comprising first mapping table and second mapping table to the RHUB.

In another embodiment of the present invention, the sending module, it is also used to the first PRRU by the RHUB into multiple cells and sends synchronization message, and the 2nd BBU into distributed system sends synchronization message, synchronizing information is carried in the synchronization message, so that multiple first PRRU under the first BBU are synchronous, and the 2nd BBU is made to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple 2nd PRRU under the first BBU using the synchronizing information.

In another embodiment of the present invention, the processing module, it is also used to the location information according to the multiple first PRRU, multiple first PRRU in each cell are divided into two PRRU groups, wherein, the corresponding first group of mark of one of PRRU group in each cell, the corresponding second group of mark of another PRRU group；Determining and first group of mark Corresponding TTI is odd number TTI, and determines that TTI corresponding with second group of mark is even number TTI.

As shown in figure 8, providing a kind of baseband processing unit BBU in another embodiment of the present invention, comprising:

Receiving module 31, the synchronization message of the carrying synchronizing information for receiving the first BBU transmission；

Processing module 32, for realizing that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.

As shown in Figure 9, RHUB 900 includes: transmitter 901, receiver 902, processor 903, memory 904 and antenna 905, sending module 12 in embodiment shown in Fig. 6, the function to be realized can be realized by the transmitter 901 of RHUB in Fig. 6, or the transmitter 901 that can also be controlled by processor 903 is realized, receiving module 13 in embodiment shown in Fig. 6, the function to be realized can be realized by the receiver 902 of RHUB in Fig. 9, or the receiver 902 that can also be controlled by processor 903 is realized, processing module 11 in embodiment shown in Fig. 6, the function to be realized can be by the processor of terminal device in Fig. 9, 903 realize, the memory 904 is used to store the journey that the processor 903 executes Sequence instruction.

As shown in Figure 10, BBU 1000 includes: transmitter 1001, receiver 1002, processor 1003, memory 1004 and antenna 1005, sending module 23 in embodiment shown in Fig. 7, the function to be realized can be realized by the transmitter 1001 of BBU in Figure 10, or the transmitter 1001 that can also be controlled by processor 1003 is realized, receiving module 21 in embodiment shown in Fig. 7, receiving module 31 in embodiment shown in Fig. 8, the function to be realized can be realized by the receiver 1002 of BBU in Figure 10, or the receiver 1002 that can also be controlled by processor 1003 is realized, processing module 22 in embodiment shown in Fig. 7, processing module 32 in embodiment shown in Fig. 8, the function to be realized It can be realized by the processor of terminal device in Figure 10,1003, the memory 1004 is used to store the program instruction that the processor 1003 executes.

In the specific implementation, the application also provides a kind of computer storage medium, wherein the computer storage medium can be stored with program, which may include step some or all of in foregoing embodiments when executing.The storage medium can be magnetic disk, CD, read-only memory (English: read-only memory, abbreviation ROM) or random access memory (English: random access memory, abbreviation RAM) etc..

It is required that those skilled in the art can be understood that the technology in the embodiment of the present application can add by software The mode of general hardware platform realize.Based on this understanding, substantially the part that contributes to existing technology can be embodied in the form of software products technical solution in the embodiment of the present application in other words, the computer software product can store in storage medium, such as ROM/RAM, magnetic disk, CD, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) execute method described in certain parts of each embodiment of the application or embodiment.

Same and similar part may refer to each other between each embodiment in this specification.Above-described the application embodiment does not constitute the restriction to the application protection scope.

Claims

A kind of uplink data transmission method, it is characterized in that, this method is applied to the remote signaling retransmission unit RHUB in distributed system, PRRU group is contained at least two in the cell each managed by the RHUB, it include at least one PRRU in each PRRU group, which comprises

The RHUB was obtained from the time of reception of the first PRRU upstream data sent, and the first PRRU is the PRRU in the cell of RHUB management；

When being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data is reported to corresponding baseband processing unit BBU by the RHUB；

Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.
The method according to requiring 1, which is characterized in that the method also includes:

When the RHUB determines that the UE is default UE corresponding with the first PRRU, the RHUB obtains the time of reception from the first PRRU upstream data sent.
The method according to requiring 2, which is characterized in that the method also includes:

When the RHUB receives the detection reference signal that the first PRRU is reported, the detection reference signal is what the UE that the first PRRU is received was reported, the detection reference signal is reported to corresponding BBU by the RHUB, so that the BBU determines the corresponding relationship between the first PRRU and UE according to the detection reference signal.
The method according to requiring 1, which is characterized in that the method also includes:

The RHUB receives the notification message comprising the first mapping table and the second mapping table, and the group mark comprising multiple groups PRRU group and the corresponding relationship between TTI in first mapping table, each TTI correspond to the group mark of at least one PRRU group；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.
A kind of uplink data transmission method, which is characterized in that manage multiple remote signaling retransmission unit RHUB applied to the first baseband processing unit BBU, the first BBU in distributed system, which comprises

First BBU obtains the location information of multiple first PRRU in each cell；

Multiple first PRRU in each cell are divided at least two PRRU groups according to the location information of the multiple first PRRU by the first BBU；

Location information of first BBU according to the first PRRU in each PRRU group, respectively each determining group mark of the PRRU group, wherein coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference；

First BBU determines Transmission Time Interval TTI corresponding with each described group of mark respectively, and determines the first mapping table comprising the corresponding relationship between group mark and TTI.
According to the method described in claim 5, it is characterized in that, the method also includes:

First BBU receives the detection reference signal that multiple first PRRU are sent in RHUB management cell, and the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU；

First BBU determines corresponding first PRRU of each UE according to the multiple detection reference signals received, and determines the second mapping table comprising the corresponding relationship between the first PRRU and UE.
According to the method described in claim 6, it is characterized in that, the first BBU determines corresponding first PRRU of each UE according to the multiple detection reference signals received, comprising:

When receiving the detection reference signal of multiple first PRRU transmissions from same UE, the first BBU determines that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE.
The method according to the description of claim 7 is characterized in that the method also includes:

First BBU sends the notification message comprising first mapping table and second mapping table to the RHUB.
According to the described in any item methods of claim 5 to 8, which is characterized in that the method also includes:

First BBU sends synchronization message by first PRRU of the RHUB into multiple cells, and the 2nd BBU into distributed system sends synchronization message, synchronizing information is carried in the synchronization message, so that multiple first PRRU under the first BBU are synchronous, and the 2nd BBU is made to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple 2nd PRRU under the first BBU using the synchronizing information.
According to the method described in claim 9, it is characterized in that, multiple first PRRU in each cell are divided at least two PRRU groups according to the location information of the multiple first PRRU by the first BBU, comprising:

Multiple first PRRU in each cell are divided into two PRRU groups according to the location information of the multiple first PRRU by the first BBU, wherein one of PRRU group in each cell is first group corresponding Mark, the corresponding second group of mark of another PRRU group；

First BBU determines Transmission Time Interval TTI corresponding with each described group of mark respectively, comprising:

First BBU determines that TTI corresponding with first group of mark is odd number TTI, and determines that TTI corresponding with second group of mark is even number TTI.
A kind of uplink data transmission method, which is characterized in that be applied to the second baseband processing unit BBU, comprising:

2nd BBU receives the synchronization message for the carrying synchronizing information that the first BBU is sent；

2nd BBU realizes that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.
A kind of remote signaling retransmission unit RHUB, which is characterized in that contain at least two PRRU group in the cell of the RHUB management, include at least one PRRU in each PRRU group, described device includes:

Processing module, for obtaining the time of reception from the first PRRU upstream data sent, the first PRRU is the PRRU in the cell of RHUB management；

Sending module, for when being located at the group corresponding Transmission Time Interval TTI of mark of PRRU group belonging to the first PRRU time of reception, the upstream data to be reported to corresponding baseband processing unit BBU；Wherein, coverage area is adjacent and belongs to the corresponding different TTI of group mark of the PRRU group of different community.
The RHUB according to requiring 12, which is characterized in that

The processing module is also used to when determining the UE is default UE corresponding with the first PRRU, obtains the time of reception from the first PRRU upstream data sent.
The RHUB according to requiring 13, which is characterized in that

The sending module, it is also used to when receiving the detection reference signal that the first PRRU is reported, the detection reference signal is what the UE that the first PRRU is received was reported, the detection reference signal is reported into corresponding BBU, so that the BBU determines the corresponding relationship between the first PRRU and UE according to the detection reference signal.
The RHUB according to requiring 12, which is characterized in that the RHUB further include:

Receiving module, for receiving the notification message comprising the first mapping table and the second mapping table, institute The group mark in the first mapping table comprising multiple groups PRRU group and the corresponding relationship between TTI are stated, each TTI corresponds to the group mark of at least one PRRU group；Comprising the corresponding relationship between multiple groups the first PRRU and default UE in second mapping table, each first PRRU corresponds at least one default UE.
A kind of baseband processing unit BBU, the BBU manage multiple remote signaling retransmission unit RHUB, and the BBU includes:

Receiving module, for receiving the location information of multiple first PRRU in each cell；

Processing module, for obtaining the location information of multiple first PRRU in each cell；According to the location information of the multiple first PRRU, multiple first PRRU in each cell are divided at least two PRRU groups；According to the location information of the first PRRU in each PRRU group, respectively each PRRU group determines group mark, wherein coverage area is adjacent and belongs to the group of the PRRU group of different community mark difference；Transmission Time Interval TTI corresponding with each described group of mark is determined respectively, and determines the first mapping table comprising the corresponding relationship between group mark and TTI.
BBU according to claim 16, which is characterized in that

The receiving module is also used to receive the detection reference signal that multiple first PRRU are sent in RHUB management cell, and the detection reference signal is to be sent by the user equipment (UE) for establishing connection with the first PRRU and passed through the RHUB to be transmitted to the first BBU；

The processing module is also used to determine corresponding first PRRU of each UE according to the multiple detection reference signals received, and determines the second mapping table comprising the corresponding relationship between the first PRRU and UE.
BBU according to claim 17, which is characterized in that

The processing module is also used to determine that strongest first PRRU of signal strength for receiving detection reference signal is first PRRU corresponding with the UE when receiving the detection reference signal of multiple first PRRU transmissions from same UE.
BBU according to claim 18, which is characterized in that the BBU further include:

Sending module, for sending the notification message comprising first mapping table and second mapping table to the RHUB.
6 to 19 described in any item methods according to claim 1, which is characterized in that

The sending module is also used to the first PRRU transmission by the RHUB into multiple cells and synchronizes and disappear Breath, and the 2nd BBU into distributed system sends synchronization message, synchronizing information is carried in the synchronization message, so that multiple first PRRU under the first BBU are synchronous, and the 2nd BBU is made to realize that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple 2nd PRRU under the first BBU using the synchronizing information.
According to the method for claim 20, which is characterized in that

The processing module, it is also used to the location information according to the multiple first PRRU, multiple first PRRU in each cell are divided into two PRRU groups, wherein, the corresponding first group of mark of one of PRRU group in each cell, the corresponding second group of mark of another PRRU group；It determines that TTI corresponding with first group of mark is odd number TTI, and determines that TTI corresponding with second group of mark is even number TTI.
A kind of baseband processing unit BBU characterized by comprising

Receiving module, the synchronization message of the carrying synchronizing information for receiving the first BBU transmission；

Processing module, for realizing that multiple 2nd PRRU under the 2nd BBU are synchronous with multiple first PRRU under the first BBU using the synchronizing information.