CN108966348B - Reference information interference processing method and device - Google Patents
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- CN108966348B CN108966348B CN201710353753.4A CN201710353753A CN108966348B CN 108966348 B CN108966348 B CN 108966348B CN 201710353753 A CN201710353753 A CN 201710353753A CN 108966348 B CN108966348 B CN 108966348B
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- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
The embodiment of the invention discloses a reference information interference processing method and a device, wherein the method comprises the following steps: the second base station receives the reference signal configuration information sent by the first base station; setting a preset bit of downlink physical control channel (DCI) as a preset value according to the reference signal configuration information; when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, a first preset mechanism is adopted for data transmission and reception, otherwise, a second preset mechanism is adopted for data transmission and reception; and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station. The embodiment of the invention effectively reduces the interference on the reference signal, improves the receiving precision of the reference signal, can further effectively estimate the channel state information and improves the decoding efficiency by setting the preset bit on the downlink physical control channel and determining the corresponding data sending and receiving mechanism by judging different preset values.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a reference information interference processing method and device.
Background
With the continuous development of the mobile internet and the internet of things, the 5G technology also puts corresponding requirements on the development of the technology according to the increasing demands. In order to meet the index requirements of the 5G communication system, the 3GPP organization determines to adopt a more flexible duplex mode to reduce the communication delay and improve the throughput of the system.
In NR (New Radio, wireless access), a flexible duplex technique is used to dynamically indicate the uplink and downlink transmission direction of each timeslot, which can naturally adapt to the dynamic change of uplink and downlink services, but may cause reference information interference: one is inter-gbb (base station) interference, i.e. interference generated by downlink signals to uplink signals, as shown in fig. 1; the other is inter-UE (terminal) interference, i.e. interference generated by uplink signals to downlink signals, as shown in fig. 2.
If such interference is not handled accordingly, the interfering signal may have a serious impact on the performance of the system, and may even reduce the throughput of the system.
In NR, the existing scheme has an advanced receiver technology, and an interference suppression or interference cancellation technology is employed at a receiving end to suppress or cancel a reference information interference signal and recover a useful signal; the cooperative scheduling technology is used for keeping the reference information with strong interference orthogonal in a frequency domain or a time domain through cooperative scheduling between base stations; the beamforming technology is used for coordinating reference information interference by adjusting the beam direction between the gNB and the UE; and the perception mechanism avoids the interference of the reference information through long-time or short-time perception measurement.
In the process of implementing the embodiment of the present invention, the inventor finds that in the existing method, the interference elimination or interference suppression technology needs to be added at the receiving end in the advanced receiver technology, and the complexity of the scheme is high; the cooperative scheduling technology can effectively eliminate interference by distributing interference service to different time domains or frequency domains, but the interference can be realized only by matching with interference measurement; the beamforming technology also needs accurate channel state measurement information to use a proper beamforming matrix to achieve the purpose of interference elimination; the sensing mechanism also needs to perform sensing measurement first, so that resource scheduling can be performed according to the sensing condition, and the use scene of the sensing mechanism has certain limitation.
Disclosure of Invention
Because the above problems exist in the existing methods, embodiments of the present invention provide a method and an apparatus for reference information interference processing.
In a first aspect, an embodiment of the present invention provides a reference information interference processing method, including:
the second base station receives the reference signal configuration information sent by the first base station;
setting a preset bit of downlink physical control channel (DCI) as a preset value according to the reference signal configuration information;
when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, a first preset mechanism is adopted for data transmission and reception, otherwise, a second preset mechanism is adopted for data transmission and reception;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
Optionally, the first preset mechanism includes a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
Optionally, the reference signal includes a channel state information reference signal CSI-RS, an uplink channel quality measurement reference signal SRS, or a demodulation reference signal DMRS.
In a second aspect, an embodiment of the present invention further provides a reference information interference processing method, including:
a first base station receives a reference information interference measurement result sent by a first terminal;
and if the reference information interference is judged and obtained according to the reference information interference measurement result, acquiring the reference signal configuration information of the first terminal and sending the reference signal configuration information to a second base station.
Optionally, the sending the reference signal configuration information to the second base station specifically includes:
and sending the reference signal configuration information to the second base station through an air interface OTA/backhaul line backhaul.
In a third aspect, an embodiment of the present invention provides a reference information interference processing apparatus, including:
the information receiving module is used for receiving reference signal configuration information sent by a first base station;
a preset bit setting module, configured to set a preset bit of the DCI according to the reference signal configuration information to a preset value;
the terminal scheduling module is used for transmitting and receiving data by adopting a first preset mechanism if the preset bit is judged to be the preset value when the second base station schedules the second terminal, and otherwise, transmitting and receiving data by adopting a second preset mechanism;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
Optionally, the first preset mechanism in the terminal scheduling module includes a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
Optionally, the reference signal includes a channel state information reference signal CSI-RS, an uplink channel quality measurement reference signal SRS, or a demodulation reference signal DMRS.
In a fourth aspect, an embodiment of the present invention further provides a reference information interference processing apparatus, including:
the measurement result receiving module is used for receiving a reference information interference measurement result sent by the first terminal;
and the information sending module is used for acquiring the reference signal configuration information of the first terminal and sending the reference signal configuration information to the second base station if the reference information interference is judged and obtained according to the reference information interference measurement result.
Optionally, the information sending module is specifically configured to send the reference signal configuration information to the second base station through an air interface OTA/backhaul.
According to the technical scheme, the embodiment of the invention sets the preset bit on the downlink physical control channel, determines the corresponding data sending and receiving mechanism by judging different preset values, effectively reduces the interference on the reference signal, improves the receiving precision of the reference signal, can further effectively estimate the channel state information and improves the decoding efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram illustrating reference information interference between base stations according to the prior art;
fig. 2 is a schematic diagram of reference information interference between terminals provided in the prior art;
fig. 3 is a flowchart illustrating a reference information interference processing method according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating coordination of reference signal interference between base stations according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating coordination of inter-terminal reference signal interference according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a reference information interference processing method according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a reference information interference processing apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a reference information interference processing apparatus according to another embodiment of the present invention;
FIG. 9 is a logical block diagram of a first electronic device in one embodiment of the invention;
fig. 10 is a logic block diagram of a second electronic device in an embodiment of the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 3 shows a schematic flow chart of a reference information interference processing method provided in this embodiment, including:
s301, the second base station receives the reference signal configuration information sent by the first base station.
The first base station (corresponding to the gNB1 in fig. 1) and the second base station (corresponding to the gNB2 in fig. 1) are two adjacent base stations, and when the first base station obtains a reference information interference measurement result through measurement of a corresponding first terminal (corresponding to the UE1 in fig. 1), and determines to know reference information interference according to the reference information interference measurement result, the reference signal configuration information of the first terminal is sent to the second base station.
The reference signal configuration information is configuration information of a reference signal of a first terminal, and the reference signal configuration information is sent to a second base station, so that when a second terminal (corresponding to the UE2 in fig. 1) corresponding to the second base station communicates with the first terminal, encoding and decoding can be performed through the same reference signal configuration information.
The reference signal may include a CSI-RS (channel state information reference signal), an SRS (uplink channel quality measurement reference signal), or a DMRS (demodulation reference signal), that is, this embodiment is applicable to the interference problem of the reference signals such as the CSI-RS, the SRS, or the DMRS.
S302, setting the preset bit of the DCI (downlink physical control channel) as a preset value according to the reference signal configuration information.
The DCI is a downlink physical control channel of the second base station, and the DCI includes a plurality of data bits.
The preset bit is a data bit in preset DCI and is used for recording whether a reference signal interference problem exists or not.
The preset value is a preset value and indicates that the reference signal interference problem exists. For example, when the preset value is 1, it indicates that there is a reference signal interference problem, and when the preset value is 0, it indicates that there is no reference signal interference problem.
And S303, when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, adopting a first preset mechanism to transmit and receive data, and otherwise, adopting a second preset mechanism to transmit and receive data.
The first preset mechanism is a preset data sending and receiving mechanism, and the first preset mechanism may include a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
In this embodiment, the second preset mechanism is an existing data sending and receiving mechanism.
For example, referring to fig. 1, a first terminal first performs reference information interference measurement, and feeds back a reference information interference measurement result to a first base station (gNB1), the first base station determines that there is a reference information interference problem according to the reference information interference measurement result, then obtains reference signal configuration information of the first terminal, and sends the reference signal configuration information to a second base station (gNB2), and the second base station sets a preset bit of DCI to 1 after receiving the reference signal configuration information. When a first terminal (UE1) needs to communicate with a second terminal (UE2), and a second base station performs scheduling to implement communication between the first terminal and the second terminal, if it is determined that the preset bit of DCI is set to 1, a preset code division multiplexing mechanism is used to transmit and receive data, and if it is determined that the preset bit of DCI is set to 0, an existing default mechanism is used to transmit and receive data, thereby avoiding the problem of reference signal interference between base stations. Referring to fig. 4, the base station may perform reference information interference measurement at a resource location of a specified mechanism through the NR CSI-RS of the neighboring cell. Specifically, after the first base station performs CSI-RS reference information interference measurement on an uplink signal (UL), the first base station updates a coordination resource location of a downlink signal (DL) of the second base station, and configures NR CSI-RS configuration information to a corresponding second terminal through a high-level signaling according to the NR CSI-RS reference signal configuration information transmitted by a neighboring cell.
When reference signal interference exists between the terminals, referring to fig. 2 and 5, the problem of reference signal interference between the terminals is avoided in the same manner as described above.
In the embodiment, the preset bits are set in the downlink physical control channel, and the corresponding data sending and receiving mechanisms are determined by judging different preset values, so that the interference on the reference signal is effectively reduced, the receiving precision of the reference signal is improved, the channel state information can be further effectively estimated, and the decoding efficiency is improved.
Fig. 6 shows a flowchart of a reference information interference processing method provided in this embodiment, including:
s601, the first base station receives a reference information interference measurement result sent by the first terminal.
S602, if the reference information interference is judged and obtained according to the reference information interference measurement result, acquiring the reference signal configuration information of the first terminal, and sending the reference signal configuration information to a second base station.
Specifically, the first base station (corresponding to the gNB1 in fig. 1) and the second base station (corresponding to the gNB2 in fig. 1) are two adjacent base stations, and when the first base station obtains a reference information interference measurement result through measurement of a corresponding first terminal (corresponding to the UE1 in fig. 1), and determines to know reference information interference according to the reference information interference measurement result, the reference signal configuration information of the first terminal is sent to the second base station.
The reference signal configuration information is configuration information of a reference signal of a first terminal, and the reference signal configuration information is sent to a second base station, so that when a second terminal (corresponding to the UE2 in fig. 1) corresponding to the second base station communicates with the first terminal, encoding and decoding can be performed through the same reference signal configuration information.
The reference signal may include a CSI-RS (channel state information reference signal), an SRS (uplink channel quality measurement reference signal), or a DMRS (demodulation reference signal), that is, this embodiment is applicable to the interference problem of the reference signals such as the CSI-RS, the SRS, or the DMRS.
In the embodiment, the preset bits are set in the downlink physical control channel, and the corresponding data sending and receiving mechanisms are determined by judging different preset values, so that the interference on the reference signal is effectively reduced, the receiving precision of the reference signal is improved, the channel state information can be further effectively estimated, and the decoding efficiency is improved.
Further, on the basis of the foregoing method embodiment, the sending the reference signal configuration information to the second base station in S602 specifically includes:
and transmitting the reference signal configuration information to the second base station through an OTA (over the air interface)/backhaul.
The reference signal configuration information can be safely and quickly transmitted through the OTA/Backhual.
Specifically, in the flexible duplex technique of NR, interference of a reference signal is reduced by:
a1, in a cell of a first base station gbb 1, a first terminal UE1 obtains a reference information interference measurement result through cli (cross link interference) measurement, and reports the reference information interference measurement result to a gbb 1;
a2 and gNB1 transmit CSI-RS reference signal configuration information of UE1 to adjacent base station gNB2 through OTA/backhaul according to a reference information interference measurement result reported by UE 1;
a3 and gNB2 configure NR CSI-RS configuration information to a corresponding second terminal UE2 through RRC signaling according to the NR CSI-RS reference signal configuration information transmitted by the neighboring cell;
a4, when the gNB2 schedules the UE2 in the cell, indicating whether the UE2 adopts the NR CSI-RS reference signal coordination mechanism through the bit information bits of the NR DCI signaling:
if the bit information bit is 1, the first terminal transmits a signal through a specified mechanism, such as multicasting, puncturing, or even code division multiplexing, and the receiving end (the second terminal) receives the signal by using a corresponding receiving mechanism according to the transmitting mechanism, as shown in fig. 4; if the bit information bit is 0, the transmission and reception are performed in a normal mapping manner. The base station may perform reference information interference measurement through the NR CSI-RS of the neighboring cell at the specified mechanism resource location, as shown in fig. 5.
Fig. 7 shows a schematic structural diagram of a reference information interference processing apparatus provided in this embodiment, where the apparatus includes: information receiving module 701, preset bit setting module 702 and terminal scheduling module 703, wherein:
the information receiving module 701 is configured to receive reference signal configuration information sent by a first base station;
the preset bit setting module 702 is configured to set a preset bit of the DCI according to the reference signal configuration information to a preset value;
the terminal scheduling module 703 is configured to, when the second base station schedules the second terminal, if it is determined that the preset bit is the preset value, perform data transmission and reception by using a first preset mechanism, otherwise, perform data transmission and reception by using a second preset mechanism;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
Specifically, the information receiving module 701 receives reference signal configuration information sent by a first base station; the preset bit setting module 702 sets the preset bits of the DCI as preset values according to the reference signal configuration information; when the second base station schedules the second terminal, if the terminal scheduling module 703 determines that the preset bit is the preset value, the terminal scheduling module transmits and receives data by using a first preset mechanism, otherwise, the terminal scheduling module transmits and receives data by using a second preset mechanism.
In the embodiment, the preset bits are set in the downlink physical control channel, and the corresponding data sending and receiving mechanisms are determined by judging different preset values, so that the interference on the reference signal is effectively reduced, the receiving precision of the reference signal is improved, the channel state information can be further effectively estimated, and the decoding efficiency is improved.
Further, on the basis of the foregoing device embodiment, the first preset mechanism in the terminal scheduling module 703 includes a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
Further, on the basis of the above device embodiment, the reference signal includes a channel state information reference signal CSI-RS, an uplink channel quality measurement reference signal SRS, or a demodulation reference signal DMRS.
The reference information interference processing apparatus described in this embodiment may be configured to execute the corresponding method embodiments, and the principle and technical effect are similar, which are not described herein again.
Fig. 8 shows a schematic structural diagram of a reference information interference processing apparatus provided in this embodiment, where the apparatus includes: a measurement result receiving module 801 and an information sending module 802, wherein:
the measurement result receiving module 801 is configured to receive a reference information interference measurement result sent by a first terminal;
the information sending module 802 is configured to, if it is determined according to the reference information interference measurement result that reference information interference is obtained, obtain reference signal configuration information of the first terminal, and send the reference signal configuration information to a second base station.
Specifically, the measurement result receiving module 801 receives a reference information interference measurement result sent by a first terminal; the information sending module 802 obtains the reference signal configuration information of the first terminal and sends the reference signal configuration information to the second base station if it is determined that reference information interference is obtained according to the reference information interference measurement result.
In the embodiment, the preset bits are set in the downlink physical control channel, and the corresponding data sending and receiving mechanisms are determined by judging different preset values, so that the interference on the reference signal is effectively reduced, the receiving precision of the reference signal is improved, the channel state information can be further effectively estimated, and the decoding efficiency is improved.
Further, on the basis of the above apparatus embodiment, the information sending module 802 is specifically configured to send the reference signal configuration information to the second base station through an air interface OTA/backhaul.
The reference information interference processing apparatus described in this embodiment may be configured to execute the corresponding method embodiments, and the principle and technical effect are similar, which are not described herein again.
Referring to fig. 9, the first electronic device includes: a processor (processor)901, a memory (memory)902, and a bus 903;
wherein the content of the first and second substances,
the processor 901 and the memory 902 complete communication with each other through the bus 903;
the processor 901 is configured to call program instructions in the memory 902 to perform the methods provided by the above-mentioned method embodiments, for example, including:
the second base station receives the reference signal configuration information sent by the first base station;
setting a preset bit of downlink physical control channel (DCI) as a preset value according to the reference signal configuration information;
when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, a first preset mechanism is adopted for data transmission and reception, otherwise, a second preset mechanism is adopted for data transmission and reception;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including:
the second base station receives the reference signal configuration information sent by the first base station;
setting a preset bit of downlink physical control channel (DCI) as a preset value according to the reference signal configuration information;
when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, a first preset mechanism is adopted for data transmission and reception, otherwise, a second preset mechanism is adopted for data transmission and reception;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
Referring to fig. 10, the second electronic device includes: a processor (processor)1001, a memory (memory)1002, and a bus 1003;
wherein the content of the first and second substances,
the processor 1001 and the memory 1002 complete communication with each other through the bus 1003;
the processor 1001 is configured to call the program instructions in the memory 1002 to execute the methods provided by the above-mentioned method embodiments, for example, including:
a first base station receives a reference information interference measurement result sent by a first terminal;
and if the reference information interference is judged and obtained according to the reference information interference measurement result, acquiring the reference signal configuration information of the first terminal and sending the reference signal configuration information to a second base station.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including:
a first base station receives a reference information interference measurement result sent by a first terminal;
and if the reference information interference is judged and obtained according to the reference information interference measurement result, acquiring the reference signal configuration information of the first terminal and sending the reference signal configuration information to a second base station.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A reference information interference processing method is characterized by comprising the following steps:
the second base station receives the reference signal configuration information sent by the first base station;
setting a preset bit of the DCI as a preset value according to the reference signal configuration information, wherein the preset bit is a preset data bit in the DCI and is used for recording whether a reference signal interference problem exists or not; the preset value is a preset value and indicates that the problem of reference signal interference exists;
when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, a first preset mechanism is adopted for data transmission and reception, otherwise, a second preset mechanism is adopted for data transmission and reception;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
2. The method of claim 1, wherein the first predetermined mechanism comprises a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
3. The method of claim 1, wherein the reference signal comprises a channel state information reference signal (CSI-RS), an uplink channel quality measurement reference signal (SRS), or a demodulation reference signal (DMRS).
4. A reference information interference processing method is characterized by comprising the following steps:
a first base station receives a reference information interference measurement result sent by a first terminal;
if the reference signal interference is judged and known according to the reference information interference measurement result, acquiring reference signal configuration information of the first terminal, and sending the reference signal configuration information to a second base station, so that the second base station sets a preset bit of downlink physical control channel (DCI) to be a preset value according to the received reference signal configuration information, wherein the preset bit is a data bit in the preset DCI and is used for recording whether the reference signal interference problem exists or not; the preset value is a preset value and indicates that the problem of reference signal interference exists; and when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, the first preset mechanism is adopted for data transmission and reception, otherwise, the second preset mechanism is adopted for data transmission and reception.
5. The method of claim 4, wherein the sending the reference signal configuration information to the second base station specifically comprises:
and sending the reference signal configuration information to the second base station through an air interface OTA/backhaul line backhaul.
6. A reference information interference processing apparatus for a second base station, comprising:
the information receiving module is used for receiving reference signal configuration information sent by a first base station;
a preset bit setting module, configured to set a preset bit of the DCI according to the reference signal configuration information, where the preset bit is a preset data bit in the DCI and is used to record whether there is a reference signal interference problem; the preset value is a preset value and indicates that the problem of reference signal interference exists;
the terminal scheduling module is used for transmitting and receiving data by adopting a first preset mechanism if the preset bit is judged to be the preset value when the second base station schedules the second terminal, and otherwise, transmitting and receiving data by adopting a second preset mechanism;
and when judging that the reference signal interference is acquired, the first base station sends the reference signal configuration information to the second base station.
7. The apparatus of claim 6, wherein the first predetermined mechanism in the terminal scheduling module comprises a muting mechanism, a puncturing mechanism, or a code division multiplexing mechanism.
8. The apparatus of claim 6, wherein the reference signal comprises a channel state information reference signal (CSI-RS), an uplink channel quality measurement reference signal (SRS), or a demodulation reference signal (DMRS).
9. A reference information interference processing apparatus for a first base station, comprising:
the measurement result receiving module is used for receiving a reference information interference measurement result sent by the first terminal;
an information sending module, configured to, if it is determined according to the reference information interference measurement result that reference information interference is obtained, obtain reference signal configuration information of the first terminal, and send the reference signal configuration information to a second base station, so that the second base station sets a preset bit of a downlink physical control channel DCI according to the received reference signal configuration information to a preset value, where the preset bit is a data bit in the preset DCI and is used to record whether a reference signal interference problem exists; the preset value is a preset value and indicates that the problem of reference signal interference exists; and when the second base station schedules the second terminal, if the preset bit is judged to be the preset value, the first preset mechanism is adopted for data transmission and reception, otherwise, the second preset mechanism is adopted for data transmission and reception.
10. The apparatus of claim 9, wherein the information sending module is specifically configured to send the reference signal configuration information to the second base station via an over-the-air (OTA)/backhaul.
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| CN103297980A (en) * | 2012-03-01 | 2013-09-11 | 华为技术有限公司 | Method and device for interference coordination |
| CN104145502A (en) * | 2012-12-14 | 2014-11-12 | 华为技术有限公司 | Method, device and system for selecting uplink CoMP set |
| CN104219724A (en) * | 2013-05-31 | 2014-12-17 | 中兴通讯股份有限公司 | Method and node for interference measurement by cooperation among cells |
| CN105337688A (en) * | 2014-08-07 | 2016-02-17 | 上海贝尔股份有限公司 | Method, device and system for transmitting information among evolved Nodes B |
| WO2016090782A1 (en) * | 2014-12-10 | 2016-06-16 | 中兴通讯股份有限公司 | Method and apparatus for transmitting, receiving random access configuration information |
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| US8861430B2 (en) * | 2011-08-11 | 2014-10-14 | Mediatek Inc. | Methods of point association for cooperative multiple point transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103297980A (en) * | 2012-03-01 | 2013-09-11 | 华为技术有限公司 | Method and device for interference coordination |
| CN104145502A (en) * | 2012-12-14 | 2014-11-12 | 华为技术有限公司 | Method, device and system for selecting uplink CoMP set |
| CN104219724A (en) * | 2013-05-31 | 2014-12-17 | 中兴通讯股份有限公司 | Method and node for interference measurement by cooperation among cells |
| CN105337688A (en) * | 2014-08-07 | 2016-02-17 | 上海贝尔股份有限公司 | Method, device and system for transmitting information among evolved Nodes B |
| WO2016090782A1 (en) * | 2014-12-10 | 2016-06-16 | 中兴通讯股份有限公司 | Method and apparatus for transmitting, receiving random access configuration information |
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