CN105337688B - Method, device and system for transmitting information between base stations - Google Patents
Method, device and system for transmitting information between base stations Download PDFInfo
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- CN105337688B CN105337688B CN201410387384.7A CN201410387384A CN105337688B CN 105337688 B CN105337688 B CN 105337688B CN 201410387384 A CN201410387384 A CN 201410387384A CN 105337688 B CN105337688 B CN 105337688B
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Abstract
The invention aims to provide a method, a device and a system for transmitting information between base stations. According to the first base station, CSI information is sent to a second base station through a preset interface, wherein the CSI information comprises CQI information and interference hypothesis information corresponding to the CQI information, and the CQI information comprises broadband CQI and/or subband CQI. Compared with the prior art, the invention has the following advantages: according to the scheme of the invention, the situation of non-ideal backload in the prior art can be overcome by defining the interaction mode of the CSI information, so that the interaction between the nodes in the CoMP system is better, and the CoMP performance is improved only by one step.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for transmitting information between base stations.
background
in the prior art, Coordinated multipoint (CoMP) transmission is a main technical means for mitigating inter-cell interference in multipoint cooperation. However, there is no ideal backhaul in the evolved CoMP network system, and in order to support multi-vendor CoMP, the performance of CoMP needs to be maximally achieved.
Disclosure of Invention
The invention aims to provide a method, a device and a system for transmitting information between base stations.
according to an aspect of the present invention, there is provided a first base station, wherein the first base station is configured to:
and transmitting CSI information to a second base station through a preset interface, wherein the CSI information comprises CQI information and interference measurement hypothesis information corresponding to the CQI information, and the CQI information comprises broadband CQI and/or subband CQI.
According to an aspect of the present invention, a CoMP network system is further provided, wherein the CoMP network system includes a plurality of nodes using the base station.
According to an aspect of the present invention, there is also provided a method of transmitting information with other base stations in a first base station, wherein the method comprises the steps of:
a, transmitting CSI information to a second base station through a preset interface, wherein the CSI information comprises CQI information and interference measurement hypothesis information corresponding to the CQI information, and the CQI information comprises broadband CQI and/or subband CQI.
Compared with the prior art, the invention has the following advantages: according to the scheme of the invention, the situation of non-ideal backload in the prior art can be overcome by defining the interaction mode of the CSI information, so that the interaction between the nodes in the CoMP system is better, and the CoMP performance is improved only by one step.
drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIGS. 1(a) and 1(b) illustrate a resource status report initialization procedure between base stations;
FIG. 1(c) shows a resource status update procedure between base stations;
Fig. 2 shows a process of load indication between base stations.
the same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
the present invention is described in further detail below with reference to the attached drawing figures.
The present invention provides a method for transmitting information between base stations, and the method according to the present invention includes step S1 (not shown) performed by the first base station. Referring to fig. 1(b), step S1 is performed in the resource status update process shown in fig. 1 (b).
in step S1, the first base station transmits Channel State Indication (CSI) information to the second base station through a predetermined interface.
The base station according to the present invention includes, but is not limited to, various base stations applicable to a Coordinated multipoint (CoMP) transmission system. Preferably, the base station includes, but is not limited to, a central node, eNB, and other base stations available for the CoMP system.
Wherein the predetermined interface includes, but is not limited to, an information transmission interface between the first base station and the second base station, as specified in a current or future standard protocol. Preferably, the predetermined interface includes, but is not limited to, an X2 interface.
wherein the CSI information includes, but is not limited to, at least any one of:
1) User indication information, e.g., a user ID;
2) node indication information for indicating a signaling measurement hypothesis;
3) Interference measurement hypothesis information;
4) Channel Quality Indication (CQI) information;
5) Rank Indication (Rank Indication) information;
6) Precoding Matrix Indicator (PMI) information;
7) subframe Indication information (Subframe Indication) indicating in which Subframe to transmit;
8) Carrier Frequency Indication (Carrier Frequency Indication).
Preferably, the CSI information according to the present invention includes Channel Quality Indicator (CQI) information, Rank Indication (Rank Indication) information, and interference measurement hypothesis information corresponding thereto.
Wherein the CQI information comprises wideband CQI and/or sub-band CQI for each codeword.
preferably, the values of the wideband CQI and/or the sub-band CQI may each be in at least any one of the following formats:
1) Decimal format;
2) A binary format; e.g., a 4-bit binary format, etc.
3) Bitmap (Bit Map) format
Wherein the wideband CQI includes, but is not limited to, at least any one of:
1) One wideband CQI for one codeword 0 as mandatory information;
2) One wideband CQI for one codeword 1 as optional information;
Wherein the sub-band CQI includes, but is not limited to, at least any one of:
1) One or more sub-band CQIs for codeword 0;
2) One or more sub-band CQIs for codeword 1.
Preferably, for one codeword, the reported subband CQI maximum may be determined based on current or future possibly conducted identification. Preferably, the maximum value of the total number of sub-band CQIs corresponding to each codeword may be 14 or 28.
According to a preferred embodiment of the present invention, for CSI information including subband CQI, in the step S1, when transmitting CSI information, the subband CQI may be reported by using any one of the following manners:
1) For each subband, one or more subband CQI values are reported for the corresponding codeword.
Specifically, the first base station reports all sub-band CQIs for the user equipment and the codeword, respectively, over the entire wideband.
Preferably, when the first base station does not know the sub-band CQI corresponding to a certain user equipment, sub-band and codeword, the first base station may report a non-predetermined value for the corresponding sub-band and codeword.
for example, when the predetermined value for the sub-band CQI is 0-15, a value of-1 may be reported as a non-predetermined value.
2) One or more subband CQI values and corresponding indicated subband index information are reported for the corresponding codeword.
At this time, the first base station needs to simultaneously report a sub-band size (subband size) including the maximum number of Resource Blocks (RBs) of one sub-band.
Wherein the first base station may report the sub-band size with any of the following information:
i) direct indication information, that is, indication information directly embodying the sub-band size, such as 2RB, 4RB, 6RB, etc.
Ii) indirectly indicates information. For example, the size of the subband is determined by the reporting node based on a physical uplink shared channel mode (PUSCH mode) and a physical uplink control channel mode (PUCCH mode), or more detailed CSI reporting mode, for example, by providing information such as the CSI reporting mode.
for example, the subband size may be indicated indirectly by providing the following pattern: PUSCH mode 1-2, PUSCH mode2-0, PUSCH mode 2-2, PUSCH mode 3-0, PUSCH mode 3-1, PUSCH mode 3-2, PUSCH mode 3-3, PUCCH mode 1-0, PUCCH mode 1-1, PUCCH mode2-0 and PUCCH mode 2-1;
for another example, the following pattern is provided to indirectly indicate the subband size: PUSCH mode2-0, PUSCH mode 2-2, PUSCH mode 3-0, PUSCH mode 3-1, PUSCH mode 3-2, PUSCH mode 3-3, PUCCH mode2-0 and PUCCH mode 2-1.
More preferably, the subband size may also include the system bandwidth.
At this time, when the first base station does not know the sub-band CQI corresponding to a certain sub-band and codeword, it is not necessary to report the sub-band CQI corresponding to the sub-band and codeword.
referring to table 1, table 1 shows a method of storing CQI information of each item value in CQI information in the form of the aforementioned i).
TABLE 1
With continuing reference to table 2, table 2 shows a form of storing CQI information for each of the values in the CQI information in the manner described in ii) above.
TABLE 2
note that, the values of the wideband CQI and the subband CQI may be implemented by using 4-bit binary digits, respectively. Also, the values of the sub-band CQI described above may be replaced with different sub-band CQIs, for example, using 2-bit or 3-bit binary digits.
According to still another preferred aspect of the present invention, CQI information in the CSI information is associated with RI information.
That is, in step S1, the first base station transmits the CQI information to the second base station in association with the RI information when transmitting the CSI information.
wherein the value of the RI can be determined based on current or future criteria. Preferably, the value of the RI is set to be between 1 and 8.
More preferably, when the CQI information is not associated with RI information, the latest RI information having the same frequency domain, interference measurement hypothesis, and signal measurement hypothesis as that for the same UE as the CQI information will be adopted as the RI information associated with the CQI.
according to another preferred aspect of the present invention, the interference measurement hypothesis information corresponding to the CQI is determined by at least any one of the following manners.
1) And configuring CSI processes (CSI processes) for each node in the CoMP system by a maintenance and operation party, wherein each CSI process is associated with a global ID (Global ID), and the maintenance and operation system can acquire interference measurement hypothesis information corresponding to each CSI process.
The first base station transmits the CSI process ID in association with the CSI information to the second base station to cause the second base station to determine a corresponding interference measurement hypothesis based on the received CSI process ID.
preferably, each node in the CoMP system is configured with a Channel state Indication Reference Signal (CSI-RS) and a CSI process (CSI process), where each CSI process is associated with a global id (global id), and the maintenance and operation system can know interference measurement assumption information corresponding to each CSI process.
The first base station transmits the CSI process ID in association with the CSI information to the second base station to cause the second base station to determine a corresponding interference measurement hypothesis based on the received CSI process ID.
Table 3 illustrates CSI information having a CSI process ID corresponding to one cell.
TABLE 3
wherein maxUEreport is used to indicate a maximum number of UEs that can report UE-CSI. maxCSIPPERUE is the maximum number of UE-CSI processes.
It should be noted that the maintenance and operation party according to the present invention may be any subject capable of performing the configuration operation in 1) or 2) described above.
3) each node in the CoMP system can know the CSI-RS configuration of its neighbor node, and/or determine an interference measurement hypothesis corresponding to the CSI-RS configuration based on each CSI-RS configuration, and at this time, the first base station transmits interference hypothesis information in any one of the following manners.
i) The first base station transmits the CSI-RS configuration of the used interference measurement hypothesis to the second base station in association with the CSI information to enable the second base station to determine the corresponding interference transmission hypothesis based on the CSI-RS configuration.
Refer to table 4. Table 4 illustrates CSI information having a CSI process ID corresponding to one cell.
TABLE 4
Wherein: inter denotes shaping, maxUEReport is used to indicate the maximum number of UEs that can report UE-CSI. maxUE-CSIPprocesses is the maximum number of UE-CSI processes.
ii) the first base station transmits the interference measurement assumption information to the second base station in association with the CSI information directly when transmitting the CSI, so that the second base station can directly know the interference measurement information.
wherein the interference measurement information includes, but is not limited to, whether each cell is silent.
refer to table 5. Table 5 illustrates a CSI information corresponding to one cell.
TABLE 5
where maxmh sets the maximum number of interference measurement hypotheses for CSI from one cell. maxmhpoint is the number of cells used for one interference measurement hypothesis. maxuerereportim is the maximum number of UEs for CSI reporting corresponding to one interference measurement hypothesis.
It should be noted that, if the interference measurement assumes no information, it means that the corresponding CSI is based on CRS measurement or non-specific CSI-RS configuration for self-interference measurement.
refer to table 6. Table 6 illustrates another CSI information corresponding to one cell.
TABLE 6
Wherein the respective parameters can be explained with reference to the aforementioned tables 1 to 5.
Specifically, the manner in which the first base station a transmits Channel State Indication (CSI) information to the second base station through a predetermined interface includes, but is not limited to, any one of the following.
1) Referring to fig. 1(a) and 1(b), a first base station feeds back corresponding resource status response information to a second base station in response to a resource status request from the second base station, where the resource status request includes a CSI report request for requesting CSI information.
Specifically, in the resource status report initialization process, when the first base station receives a resource status request from the second base station, the first base station performs a corresponding measurement operation in response to the resource status request, and then the first base station feeds back corresponding resource status response information through a predetermined interface, wherein the resource status response information includes information related to the CSI information.
Preferably, the first base station according to the present invention may also perform similar operations as the aforementioned second base station, generate a resource status request for a CSI report request requesting CSI information, transmit the resource status request to the third base station, and receive resource status response information from the third base station. Alternatively, the first base station according to the present invention may also perform similar operations as the aforementioned second base station, and receive resource status update information from a third base station, wherein the resource status update information includes CSI information. To complete the CSI information transmission between the first base station and the third base station.
it should be noted that, according to the first base station, the second base station, and only the third base station described in the present invention, only the sender and the receiver of the information are distinguished, and no limitation is imposed on the implementation or function of the base station itself.
Wherein, a Report Characteristics Information Element (Report Characteristics Information Element, Report Characteristics IE) of the Resource Status request (Resource Status reporting) includes CSI request Information for requesting a CSI Report.
Wherein the CSI request information includes, but is not limited to, at least any one of the following:
i) A periodic CSI report request.
The periodic CSI report request is used for requesting a node at the opposite side to periodically report CSI information.
Preferably, the base station indicates to obtain the periodic CSI report by adding indication information of one bit in a report characteristic IE for indicating a resource status request of the periodic report request; and the base station adds report period information in the UE-CSI measurement report IE of the defined resource state request to determine the duration of the interval period when the CSI information is reported periodically. For example, the interval period may be 5 milliseconds, 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, and the like.
According to an example of the scheme of the present invention, the second base station sends the aforementioned resource status request containing the periodic CSI report request to the first base station in the resource status report initialization phase, the first base station receives the resource status request, determines that the registration request IE of the resource status request is set to "start", and the bit indicating that the periodic CSI report is obtained is set to "1", and when the reporting period information in the UE-CSI measurement report IE is a valid value, and after the first base station accepts the periodic CSI report request, periodically performs measurement based on the interval period determined in the resource status request to report the CSI information accordingly.
And, when the first base station determines that the registration request IE in the resource status request is set to "stop", the periodic measurement is stopped.
ii) aperiodic CSI report request
Preferably, the base station indicates that the aperiodic CSI report is requested by adding indication information of one bit in the report characteristic IE of the resource status request for the aperiodic report request.
According to the scheme of the invention, the second base station sends the resource state request containing the aperiodic CSI report request to the first base station in the initialization phase of the resource state report, the first base station receives the resource state request, determines that the registration request IE of the resource state request is set to be 'start', and indicates that the bit for requesting the aperiodic CSI report is set to be '1', and the first base station receives the aperiodic CSI report request, then the measurement operation is performed aperiodically to report the CSI information.
and, when the first base station determines that the registration request IE in the resource status request is set to "stop", the measurement operation is stopped.
wherein the resource status response information includes, but is not limited to, at least any one of the following:
i) Response information to the periodic CSI report request.
The base station adds indication information of one bit in a measurement failure report characteristic IE in resource status response information for the periodic report request to indicate whether the periodic CSI report request is successful or not.
and, according to the scheme of the present invention, when the second base station receives the resource status response information from the first base station through the predetermined interface, if the bit value added in the measurement failure report characteristic IE of the resource status response information is "1", the second base station determines that the periodic CSI report request initialization is determined to be unsuccessful.
And when the corresponding resource status request includes periodic CSI report request indication information and there is no measurement failure report feature IE in the status response information or the bit in the measurement failure report feature IE is "0", the second base station determines that the periodic CSI report request initialization is successful.
ii) response information to the aperiodic CSI report request.
The base station adds indication information of one bit in a measurement failure report characteristic IE in resource status response information for the aperiodic report request to indicate whether the initialization of the aperiodic CSI report request is successful or not.
And, according to the scheme of the present invention, when the second base station receives the resource status response information from the first base station through the predetermined interface, if the bit value added in the measurement failure report characteristic IE of the resource status response information is "1", the second base station determines that the initialization of the aperiodic CSI report request is unsuccessful.
And when the corresponding resource status request includes aperiodic CSI report request indication information, and there is no measurement failure report feature IE in the status response information or the bit in the measurement failure report feature IE is "0", the second base station determines that the aperiodic CSI report request initialization is successful.
more preferably, with reference to fig. 1(c), the solution according to the present invention further comprises the following preferred solutions: when a first base station receives a resource state request from a second base station, if the first base station does not accept all state report requests corresponding to the resource state request or fails to obtain information corresponding to any state report request, the first base station feeds back corresponding resource state failure information through a predetermined interface.
wherein the resource status failure information includes any one of:
i) Failure information for periodic CSI report requests.
The base station adds indication information of one bit in a measurement failure report characteristic IE in resource state failure information for the periodic CSI report request to indicate whether the initialization of the periodic CSI report request fails.
And, according to the scheme of the present invention, when the second base station receives the resource status response information from the first base station through the predetermined interface, if the bit value added in the measurement failure report characteristic IE of the resource status response information is "1", the second base station determines that the measurement is failed, and the periodic CSI report request initialization is unsuccessful.
ii) failure information for aperiodic CSI report request.
The base station adds indication information of one bit in a measurement failure report characteristic IE in resource state failure information for the aperiodic report request to indicate whether the initialization of the aperiodic CSI report request fails.
And if the bit value added in the measurement failure report characteristic IE of the resource status response information is '1', the second base station determines that the initialization of the aperiodic CSI report request fails.
2) Referring to fig. 2, in the load Indication process, the first base station transmits the CSI information to the second base station through the predetermined interface in response to request Indication information (invoke Indication) of the second base station.
Wherein the request indication information is configured to be used for obtaining CSI information.
And the base station adds the CSI information IE to a cell information item of the load information message, and adds the CSI information as an effective value of a request indication IE.
if the invocation indication IE is set to "CSI information", it indicates that the second base station wants the first base station to initialize the load indication process with a load information message containing a CSI information IE indicating CSI information of the relevant cell.
3) The first base station sends the CSI information to the second base station in combination with the benefit indication information and the CoMP hypothesis.
Specifically, this is achieved by including CSI information in the CoMP information item. Wherein the CSI information item indicates at least any one of user equipment ID, CQI, and RI. At this time, the interference measurement hypothesis in the CSI information is indicated by the CoMP hypothesis.
Wherein the user equipment ID may be defined in a similar manner based on a UE ID related to RSRP.
preferably, the user equipment ID according to the present invention may be any one of:
1) An X2AP ID for uniquely identifying a user equipment corresponding to the X2 interface in the eNB;
2) Cell Radio Network Temporary identity (C-RNTI).
Specifically, according to an example of the present invention, an information item of CoMP information including CSI information is as follows:
One CSI set may contain one or more CSI set elements;
-one CSI set element includes, but is not limited to, some or all of the following information:
-one UE ID
-one CQI information
-one RI information
according to yet another example of the present invention, a CoMP information containing CSI information may also take the form of:
The information item in CoMP information of a load information may contain a CSI set and a UE ID, in addition to the information already in CoMP information.
One CSI set may contain one CQI information and/or one RI information.
According to yet another example of the present invention, a CoMP information containing CSI information may also be organized in the form of:
The CoMP information item may contain CSI information and UE ID information;
-the included CSI information indicates CQI information and/or RI information;
-interference measurement hypotheses in the CSI information are indicated in a CoMP hypothesis set of CoMP information items.
Wherein, the information such as CQI, RI, etc. is defined in the foregoing text, and is not described herein again.
According to the scheme of the invention, the situation of non-ideal backload in the prior art can be overcome by defining the interaction mode of the CSI information, so that the interaction between the nodes in the CoMP system is better, and the CoMP performance is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (13)
1. A first base station, wherein the first base station is configured to:
sending CSI information to a second base station through a preset interface, wherein the CSI information comprises CQI information and interference measurement hypothesis information corresponding to the CQI information, and the CQI information comprises broadband CQI and/or subband CQI;
wherein each node in the CoMP network system can learn the CSI-RS configuration of its neighbor node and/or determine an interference measurement hypothesis corresponding to the CSI-RS configuration based on each CSI-RS configuration, wherein the first base station transmits the CSI-RS configuration of the used interference measurement hypothesis to the second base station in association with CSI information, so that the second base station can determine the corresponding interference measurement hypothesis based on the CSI-RS configuration;
And the first base station transmits the CQI information to the second base station in a manner of being associated with the RI information when transmitting the CSI information, wherein when the CQI information has no associated RI information, the latest RI information which is aimed at the same UE and has the same frequency domain, interference measurement hypothesis and signal measurement hypothesis as the CQI information is taken as the RI information associated with the CQI.
2. The first base station of claim 1, wherein the first base station is further configured to:
-transmitting resource status update information to the second base station over a predetermined interface, wherein the resource status update information comprises the CSI information.
3. The first base station of claim 2, wherein the first base station is further configured to:
-feeding back corresponding resource status response information to a second base station in response to a resource status request from the second base station, wherein the resource status request comprises a CSI report request for requesting CSI information.
4. the first base station of claim 1, wherein the first base station is further configured to:
-generating a resource status request for a CSI reporting request requesting CSI information;
-sending the resource status request to the third base station;
And, the first base station is further configured to:
-receiving resource status response information from the third base station.
5. the first base station of claim 4, wherein the first base station is further configured to:
-receiving resource status update information from a third base station, wherein the resource status update information comprises CSI information.
6. the first base station of claim 1, wherein the first base station is further configured to:
-transmitting the CSI information to the second base station over the predetermined interface in response to a request indication information of the second base station, wherein the request indication information is configured for obtaining CSI information.
7. The first base station of claim 1, wherein the first base station is further configured to:
-sending the CSI information to the second base station in combination with the benefit indication information and the CoMP hypothesis over a predetermined interface.
8. The first base station according to any of claims 1 to 7, wherein the values of wideband CQI and/or sub-band CQI, respectively, may be in at least any of the following formats:
-a decimal format;
-a binary format;
-bitmap format.
9. The first base station according to any of claims 1 to 7, wherein the interference measurement hypothesis information comprises at least any of:
-CSI process indication information;
-CSI-RS configuration information.
10. The first base station of any of claims 1-7, wherein the first base station is a node in a CoMP network.
11. The first base station of any of claims 1-7, wherein the first base station configures its CSI processes for each node in the CoMP network system based on a maintenance and operator and assigns a global ID for each CSI process.
12. A CoMP network system comprising a plurality of nodes of the first base station according to any of claims 1 to 11.
13. A method in a first base station of transmitting information with other base stations, wherein the method comprises the steps of:
a, sending CSI information to a second base station through a preset interface, wherein the CSI information comprises CQI information and interference measurement hypothesis information corresponding to the CQI information, and the CQI information comprises broadband CQI and/or subband CQI;
Wherein each node in the CoMP system can learn the CSI-RS configuration of its neighbor node and/or determine an interference measurement hypothesis corresponding to the CSI-RS configuration based on each CSI-RS configuration, wherein the first base station transmits the CSI-RS configuration of the used interference measurement hypothesis to the second base station in association with CSI information, so that the second base station can determine the corresponding interference measurement hypothesis based on the CSI-RS configuration;
And the first base station transmits the CQI information to the second base station in a manner of being associated with the RI information when transmitting the CSI information, wherein when the CQI information has no associated RI information, the latest RI information which is aimed at the same UE and has the same frequency domain, interference measurement hypothesis and signal measurement hypothesis as the CQI information is taken as the RI information associated with the CQI.
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| CN109995409B (en) * | 2018-01-03 | 2022-07-12 | 华为技术有限公司 | Channel state information measuring method, terminal equipment and network equipment |
| CN110139290B (en) * | 2018-02-09 | 2022-03-08 | 中国移动通信有限公司研究院 | Method for processing remote interference measurement signal, base station and storage medium |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812624A (en) * | 2012-11-07 | 2014-05-21 | 上海贝尔股份有限公司 | Cooperative multi-point transmission method |
-
2014
- 2014-08-07 CN CN201410387384.7A patent/CN105337688B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812624A (en) * | 2012-11-07 | 2014-05-21 | 上海贝尔股份有限公司 | Cooperative multi-point transmission method |
Non-Patent Citations (3)
| Title |
|---|
| Signaling for Inter-eNB CoMP Operation;Broadcom Corporation;《3GPP TSG RAN WG1 Meeting #74bis R1-134590》;20131011;全文 * |
| Signalling Details and Procedures Supporting eCoMP;Alcatel-Lucent等;《3GPP TSG RAN WG1 Meeting #76bis R1-141251》;20140404;第1-8节 * |
| Signalling Details and Procedures Supporting eCoMP;Alcatel-Lucent等;《3GPP TSG RAN WG1 Meeting #76bis R1-141725》;20140404;第1-8节 * |
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| CN105337688A (en) | 2016-02-17 |
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