WO2016070430A1 - Dm-rs的资源配置方法、装置以及通信*** - Google Patents
Dm-rs的资源配置方法、装置以及通信*** Download PDFInfo
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- WO2016070430A1 WO2016070430A1 PCT/CN2014/090648 CN2014090648W WO2016070430A1 WO 2016070430 A1 WO2016070430 A1 WO 2016070430A1 CN 2014090648 W CN2014090648 W CN 2014090648W WO 2016070430 A1 WO2016070430 A1 WO 2016070430A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Definitions
- the present invention relates to the field of communication technologies, and in particular, to a resource configuration method for a Demodulation Reference Signal (DM-RS) in a 3D MIMO (3D Multiple Input Multiple Output) system. , devices and communication systems.
- DM-RS Demodulation Reference Signal
- 3D MIMO 3D Multiple Input Multiple Output
- a two-dimensional active antenna array can be placed at the transmitting end, which forms a three-dimensional beam by flexible weighting of antenna coefficients.
- the three-dimensional multi-antenna technology can improve the antenna gain, reduce the beam width, and reduce the interference; on the other hand, by multiplexing more users in space, the multiplexing efficiency of the system can be improved. Therefore, the three-dimensional multi-antenna technology can significantly improve the transmission efficiency and reliability of the system, and is a popular candidate technology for future mobile communication systems.
- FIG. 1 is a schematic diagram of multi-user MIMO (MU-MIMO) in 3D MIMO. As shown in FIG. 1, the vertical dimension is added to the 3D multi-antenna system, and the dimension of the system capable of supporting MU-MIMO can be further increased.
- MU-MIMO multi-user MIMO
- the system supports MU-MIMO dimension is limited, each user supports a maximum rank (rank) of 2 transmission, MU-MIMO maximum And the rank rank is 4.
- rank the rank of 2 transmission
- MU-MIMO maximum the rank rank is 4.
- DM-RS related information needs to be enhanced to ensure reliable demodulation of data.
- the inventors have found that the density of DM-RSs can be different for central user equipment and edge user equipment.
- the density of the DM-RS of each user equipment is not distinguished, and the resource utilization cannot be further improved.
- Embodiments of the present invention provide a method, an apparatus, and a communication system for indicating DM-RS information. Not only can the user equipment support high-dimensional MU-MIMO, but also the DM-RS density of the central user equipment can be reduced to improve resource utilization.
- a resource allocation method for a DM-RS is provided, which is applied to a 3D MIMO system, where the method includes:
- the base station configures, for a plurality of user equipments that perform MU-MIMO, resources for transmitting the DM-RS;
- the resource particles that transmit the DM-RS in one subframe are divided into multiple groups, so that the density of the resource particles for the at least one user equipment or the streaming DM-RS is reduced.
- a resource configuration apparatus for a DM-RS is provided, which is applied to a 3D MIMO system, where the apparatus includes:
- a resource configuration unit configured to configure, for a plurality of user equipments that perform MU-MIMO, resources for transmitting DM-RSs; and grouping resource particles for transmitting DM-RSs in one subframe into multiple groups, so that at least one user equipment or streaming DM- The density of resource particles of RS is reduced.
- a communication system comprising:
- the base station configures, for the MU-MIMO multiple user equipments, the resources for transmitting the DM-RS; wherein, the resource particles for transmitting the DM-RS in one subframe are divided into multiple groups, so that the at least one user equipment or the streaming DM- The density of resource particles of RS is reduced.
- a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform resource configuration of the DM-RS as described above in the base station method.
- a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a resource configuration method of a DM-RS as described above in a base station.
- An embodiment of the present invention provides that a base station configures, for a plurality of user equipments that perform MU-MIMO, resources for transmitting DM-RSs, where the resource particles for transmitting DM-RSs in one subframe are divided into multiple groups, so that at least The density of resource particles of a user equipment or streaming DM-RS is reduced.
- a base station configures, for a plurality of user equipments that perform MU-MIMO, resources for transmitting DM-RSs, where the resource particles for transmitting DM-RSs in one subframe are divided into multiple groups, so that at least The density of resource particles of a user equipment or streaming DM-RS is reduced.
- 1 is a schematic diagram of multi-user MIMO in 3D MIMO
- FIG. 2 is a schematic diagram of DM-RS resources in the current standard
- 3 is a mapping diagram of codewords to layers in an LTE-A system
- FIG. 4 is a schematic flowchart of a resource configuration method according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 6 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 7 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 8 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 9 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 10 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention.
- FIG. 11 is a schematic diagram of port and RE mapping according to an embodiment of the present invention.
- FIG. 12 is another schematic diagram of port and RE mapping according to an embodiment of the present invention.
- FIG. 13 is a schematic diagram of an information indication method according to an embodiment of the present invention.
- FIG. 14 is a schematic structural diagram of a resource configuration apparatus according to an embodiment of the present invention.
- FIG. 15 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- Figure 16 is a block diagram showing the configuration of a communication system according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of DM-RS resources in the current standard. As shown in FIG. 2, ports 7, 8, 11, 13 and ports 9, 10, 12, and 14 are multiplexed by code division, respectively. Multiplexing is performed by means of frequency division. In the case of multi-user transmission, each user only uses port 7,8 at most, and only uses the dotted box in Figure 2. Resource particles.
- FIG. 3 is a diagram showing a mapping relationship of codewords to layers in an LTE-A system. As shown in Figure 3, the system has a maximum of 2 code words (CW, Code Word) and 8 layers (Layer), and each code word corresponds to at most four layers.
- CW code word
- Layer layers
- Table 1 shows the indications of the antenna port, the scrambling identity, and the number of layers in the existing standard.
- the base station can send the port, the scrambling identifier, and the layer number to the user equipment through a 3-bit dynamic signaling, so that the user equipment performs DM-RS related channel estimation and demodulation.
- the information shown in Table 1 does not meet the requirements of the system, and the information related to the DM-RS needs to be enhanced to ensure reliable demodulation of the data.
- the embodiments of the present invention are described in detail below.
- FIG. 4 is a schematic flowchart of a resource configuration method according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
- Step 401 The base station configures, for a plurality of user equipments that perform MU-MIMO, resources for transmitting the DM-RS, where the resource particles that transmit the DM-RS in one subframe are divided into multiple groups, so that the at least one user equipment or the stream is transmitted. The density of resource particles of the DM-RS is reduced.
- the density of DM-RSs required by the edge user equipment and the central user equipment may be different.
- a typical MU-MIMO scenario is performed for user equipment (central user equipment) with good channel quality.
- the density of the DM-RS can be reduced.
- the embodiment of the present invention compares the RE density specified in LTE Rel. 10-12, that is, the RE of the DM-RS is transmitted in the embodiment of the present invention. The density is lowered relative to the RE density specified in LTE Rel. 10-12.
- the user equipment is a central user equipment.
- the resource particles of the transport DM-RS may be, for example, 12 resource particles in a time-frequency resource of one subframe, and the 12 resource particles are divided into 2 or 3 groups.
- the 12 REs may be 12 REs with OFDM symbols 5, 6, 12, and 13 and subcarrier numbers 1, 6, and 11; or OFDM symbols 5, 6, 12, and 13 The 12 REs whose subcarrier numbers are 0, 5, and 10.
- the above-mentioned 12RE in the subframe (that is, 12 REs in the dotted line frame described in FIG. 2, corresponding ports 7, 8 in the current standard) are taken as an example for description.
- 12RE 12 REs located in a specific position (ie, a broken line frame) as shown in FIG. 2 in the subframe
- the subframe is located at a specific position as shown in FIG. 2 (ie, a dotted frame and The 24 REs of the solid line frame are simply referred to as 24RE.
- each group can adopt 6RE/4RE, and the previous 12RE (corresponding to ports 7, 8) can be divided into 2/3 groups to serve two/three user equipments, which is equivalent to using frequency division multiplexing (FDM, Frequency Division Multiplexing).
- FDM Frequency Division Multiplexing
- TDM time division multiplexing
- the principle of grouping the DM-RSs may be that the channel estimation performance of each group of DM-RSs is as similar as possible; the channel estimation capability of each group of DM-RSs is as good as possible.
- the density of resource particles for transmitting the DM-RS for at least one user equipment is reduced, or is at least one stream (for example, the same user equipment has several The density of resource particles that transmit DM-RS is reduced.
- FIG. 5 is a schematic diagram of a DM-RS packet according to an embodiment of the present invention. For 24 resource particles, it is divided into two groups (respectively used separately) Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2.
- FIG. 6 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention, which is divided into two groups for 24 REs (respectively used separately Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2.
- FIG. 7 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention, which is divided into two groups for 24 REs (respectively used separately Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2.
- FIG. 8 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention, which is divided into two groups for 24 REs (respectively used separately Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2.
- FIG. 9 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention, which is divided into three groups for 24 REs (respectively used separately Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2
- the RE of group 3 can be used for DM-RS transmission of UE3.
- FIG. 10 is another schematic diagram of a DM-RS packet according to an embodiment of the present invention, which is divided into three groups for 24 REs (respectively used separately Express).
- the RE of group 1 can be used for DM-RS transmission of UE1
- the RE of group 2 can be used for DM-RS transmission of UE2
- the RE of group 3 can be used for DM-RS transmission of UE3.
- the DM-RS packet is only schematically illustrated in FIG. 5 to FIG. 10, but the present invention Not limited to this, it is also possible to determine the specific grouping method according to the actual situation. For example, only the normal subframe is described above, and the REs used by the DM-RS in the extended subframe may also be grouped.
- the base station configures resources for transmitting DM-RSs for multiple user equipments that perform MU-MIMO; wherein the resource particles for transmitting the DM-RS are divided into multiple groups.
- the user equipment can support high-dimensional MU-MIMO, but also the DM-RS density of the central user equipment can be reduced to improve resource utilization.
- Embodiment 1 On the basis of Embodiment 1, the embodiment of the present invention describes a port-to-physical resource mapping of a DM-RS. The same content as that of Embodiment 1 will not be described again.
- a group of resource particles in multiple groups may be mapped to ports 7 and 8 of a certain user equipment or stream, and another group of resource particles may be mapped to ports 7, 8 of another user equipment or stream; And/or, mapping a set of resource particles to ports 9, 10 of a certain user equipment or stream, and mapping another set of resource particles to ports 9, 10 of another user equipment or stream.
- the port of the DM-RS when performing a rank 1-4 transmission, may be mapped onto the resource particle such that the density of resource particles used by the DM-RS is reduced; the rank is 5-8.
- mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- FIG. 11 is a schematic diagram of port and RE mapping according to an embodiment of the present invention. As shown in FIG. 11, when the low-density DM-RS is used for the rank1-4 transmission of the user equipment, the DM-RS sequence of the ports 7, 8 is mapped to the RE in the dotted frame, and the DM-RS sequence mapping of the ports 9, 10. Go to the RE in the solid box.
- the ports 7, 8 are distinguished by means of an orthogonal overlay code (OCC), and the ports 9, 10 are distinguished by an OCC.
- OCC orthogonal overlay code
- the existing transmission method is still used (that is, the DM-RS ports 7, 8, 11, 13 are mapped to 12 REs, and the DM-RS ports 9, 10, 12, 14 are mapped to 24). RE)).
- the two groups of DM-RSs can be used by different user equipments, thereby increasing the number of users supported by the DM-RS or improving the transmission efficiency; that is, the location where the DM-RS is not mapped can transmit the Physical Downlink Shared CHannel (PDSCH). , thereby improving the transmission efficiency of the system.
- PDSCH Physical Downlink Shared CHannel
- the density of the RE transmitting the DM-RS is halved, and at the rank 5-8, the density of the RE transmitting the DM-RS is unchanged, and the previous mapping method is maintained.
- FIG. 11 only takes the grouping shown in FIG. 5 as an example, and schematically illustrates how ports and resources are mapped.
- the present invention is not limited thereto.
- a specific mapping manner may be determined according to actual conditions.
- one set of resource particles in multiple groups can be mapped to port 7, another set of resource particles mapped to port 8, another set of resource particles mapped to port 9, and another set of resource particles mapped Go to port 10.
- FIG. 12 is another schematic diagram of port and RE mapping according to an embodiment of the present invention.
- the base station transmits a low-density DM-RS to a certain user equipment
- the DM-RS sequence of the port 7 is mapped to the RE in the dotted box of the first group of DM-RS resources
- the RS sequence is mapped to the RE in the dashed box of the second group of DM-RS resources
- the DM-RS sequence of port 9 is mapped to the RE in the solid box of the third group of DM-RS resources
- the DM-RS sequence of port 10 is Maps to the REs in the solid box of the fourth set of DM-RS resources.
- mapping the ports of the DM-RS to the resource particles reduces the density of resource particles used by the DM-RS; During transmission, mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- mapping of the DM-RS ports 7, 8, 9, 10 corresponding to the rank 1-4 transmission adopts a new method as shown in FIG.
- Ports 7 and 8 are distinguished by TDM, ports 9 and 10 are differentiated by TDM, and ports 7, 8, and 9, 10 are distinguished by FDM.
- the existing transmission method is still used (that is, the DM-RS ports 7, 8, 11, 13 are mapped to 12 REs, and the DM-RS ports 9, 10, 12, 14 maps to 24 REs).
- the RE density of the transmission DMRS corresponding to rank1 is halved, the RE density of the transmission DM-RS of rank2 remains unchanged, and the change from CDM to TDM enhances the orthogonality of the user equipment.
- the mapping method in the existing standard can be used. When performing MU-MIMO on multiple low Rank user equipments, the resource density of the transmission DM-RS is reduced, thereby accommodating more DM-RSs or improving the transmission efficiency of the system.
- the port and RE mapping employs the scheme shown in FIG.
- the port and RE mapping adopt the prior art, as shown in FIG. 2.
- the DM-RS density is halved in the Rank1 transmission, and the mapping method in other cases is the same as the existing standard, that is, the rank 2-8 and the existing DM-RS density and mapping methods are the same.
- the mapping method of rank1 is reduced, thereby accommodating more DM-RSs or improving the transmission efficiency of the system. Since only the mapping method of rank1 is changed, the impact of the standard is small.
- the port and RE mapping employs the scheme shown in FIG.
- the rank3-8 transmission uses the mapping method in the standard.
- the introduction of TDM multiplexing port 7 and port 8 reduces the spatial orthogonality requirement of MU-MIMO user pairing, and enhances the flexibility of system MU-MIMO pairing.
- REs corresponding to port 7 and port 8 are grouped, and therefore, for at least one stream corresponding to port 7 or port 8, the RE density of the transmission DM-RS is lowered.
- the base station configures resources for transmitting DM-RSs for multiple user equipments that perform MU-MIMO; wherein resource particles for transmitting DM-RSs in one frame are divided into multiple groups.
- the DM-RS that reduces the transmission resource density performs port-to-resource mapping. Therefore, not only the user equipment can support high-dimensional MU-MIMO, but also the DM-RS density of the central user equipment can be reduced to improve resource utilization, and the number of users supported by the DM-RS can be increased or the transmission efficiency can be improved.
- the embodiment of the present invention describes the indication of the base station to the user equipment.
- the same content as Embodiment 1 and/or Embodiment 2 will not be described again.
- the base station in order to support the demodulation of the DM-RS, the base station needs to indicate the port, the number of layers, and the scrambling identifier of the DM-RS by the user equipment. For this part, reference may be made to the existing standard, and in this embodiment, Let me repeat. In addition, the base station also needs to indicate to the user equipment the following information: DM-RS resource information used by the user equipment and DM-RS resource information used by MU-MIMO in total; this part is described in detail below.
- FIG. 13 is a schematic diagram of an information indication method according to an embodiment of the present invention. As shown in FIG. 13, the method includes:
- Step 1301 The base station sends signaling to the user equipment to indicate information of resource particles used by the DM-RS, where the information indicates the location and/or number of the resource particles in the subframe.
- the information indicated by the signaling includes: a resource particle density used by the DM-RS of the user equipment, and a total number of resource particles used by the DM-RS when performing MU-MIMO; or: the user equipment Resource particle density used by the DM-RS, corresponding to the resource used by the DM-RS of the user equipment Group information, and the number of resource particles used in total for DM-RS when performing MU-MIMO.
- the signaling may be high-level signaling, that is, semi-static signaling, or may be dynamic signaling.
- resource mapping in Embodiment 2 if dynamic signaling is used, it is required to indicate whether the user equipment uses 6RE or 12RE (if 12RE is used, the previous port-to-resource mapping method can be used); the user equipment uses Group 1 is also a resource of group 2; and indicates whether the total DM-RS resource of MU-MIMO uses 12RE or 24RE.
- eight states can be indicated by three pieces of bit information.
- the user equipment uses the 12RE, there are only two states of 12 and 24RE.
- the user equipment uses the 6RE, it needs to indicate: group 1 resources.
- the DM-RS occupies a total of 6RE, 12RE, and 24RE. Status; group 2 resources.
- the DM-RS occupies three states of 6RE, 12RE, and 24RE. A total of 8 states, using 3 bits of information.
- semi-static signaling and dynamic information can be used for indication. If semi-static signaling is used to indicate the resource density of the transmitted DM-RS, the dynamic signaling indicates that only one bit of information is required for the case of a density of 12 RE; for the case of a density of 6 RE, one bit of information is required to indicate that the user equipment is used.
- Group 1 is also a resource of group 2, and uses 2-bit information to indicate the total number of resources occupied by the DM-RS when performing MU-MIMO, for example, two 6REs indicating whether a group in two groups is occupied and frequency division (single-user Port7- 8 Is the RE corresponding to Port 9-10 occupied?
- the resource mapping in Embodiment 2 if dynamic signaling is used, it is required to indicate whether the user equipment uses 6RE or 12RE (1 bit), and the total number of resources occupied by the DM-RS when performing MU-MIMO is 6RE. 12RE, 18RE, 24RE, a total of 3 bits of information (or the total number of resources occupied by the DM-RS when performing MU-MIMO is 12RE or 24RE, for a total of 2 bits).
- semi-static signaling and dynamic information can be used for indication. If the base station semi-statically configures the DM-RS density of the user equipment according to the location of the user equipment, the dynamic information indicates that the total number of resources occupied by the DM-RS when performing MU-MIMO is 6RE, 12RE, 18RE, 24RE, for a total of 2 bits. Information; or indication: the total number of resources occupied by the DM-RS when performing MU-MIMO is 12RE or 24RE, for a total of 1 bit.
- the possible resources for transmitting the DM-RS can be indicated most flexibly, including 6RE (rank1 SU), 12RE (the MU of two Rank1 user equipments or one user equipment 12RE) Rank1 or rank2 SU), 18RE (for example, one user device uses portRE with a density of 12RE, another user device uses port9 with 6RE), 24RE (4 users with 6RE) The device uses port7, 8, 9, 10).
- 6RE rank1 SU
- 12RE the MU of two Rank1 user equipments or one user equipment 12RE
- 18RE for example, one user device uses portRE with a density of 12RE, another user device uses port9 with 6RE
- 24RE (4 users with 6RE)
- the device uses port7, 8, 9, 10).
- there may be some restrictions on the use of DM-RS that is, when using 6RE density, it is necessary to use paired transmission of two user equipments; otherwise, it is configured to be 12RE density.
- the base station can indicate the density of the DM-RS resource of the user equipment by using the foregoing method.
- the benefit of the dynamic signaling indicating the DM-RS resource density is: the scheduling flexibility is increased, and when there is no paired user, the user can effectively utilize the DM-RS resource.
- the semi-static signaling is used to indicate the DM-RS resource density, and the base station can be determined by the location of the user equipment, which saves dynamic signaling overhead.
- the above signaling may be used to indicate the number of resources used by the DM-RS, and may also be a method for indicating rate matching on the DM-RS (for example, rate matching for 12RE or 24 REs). Further, the above signaling is described on the basis that the density of resource particles for transmitting the DM-RS is changed. However, the present invention is not limited thereto. In the case that the density of the resource particles transmitting the DM-RS is not changed, the base station may also indicate the density of the resource particles used by the DM-RS by the signaling, so that the user equipment performs, for example, the rate. Match related processing.
- the base station configures resources for transmitting DM-RSs for multiple user equipments that perform MU-MIMO.
- the resource particles for transmitting DM-RSs are divided into multiple groups, and the resource particles of different groups correspond to different ones.
- the base station indicates to the user equipment the density of the resource particles used by the DM-RS by signaling.
- the embodiment of the invention provides a resource configuration device for a DM-RS, which is applied to a 3D MIMO system.
- the resource configuration device of the DM-RS may be configured with a resource configuration method of the DM-RS corresponding to the embodiments 1 to 3 in the embodiment of the present invention, and the same content is not described herein again.
- FIG. 14 is a schematic structural diagram of a resource configuration apparatus of a DM-RS according to an embodiment of the present invention.
- the resource configuration apparatus 1400 of the DM-RS includes:
- the resource configuration unit 1401 is configured to configure, for a plurality of user equipments that perform MU-MIMO, resources for transmitting the DM-RS, where the resource particles that transmit the DM-RS in one subframe are divided into multiple groups, so that the at least one user equipment or stream The density of resource particles that transmit DM-RS is reduced.
- a set of resource particles in the plurality of groups can be mapped to a certain user equipment or stream Ports 7, 8, mapping another set of resource particles to port 7, 8 of another user device or stream; and/or mapping a set of resource particles to a user device or port 9 of 10, will be another A set of resource particles is mapped to port 9, 10 of another user device or stream.
- the DM-RS ports 7, 8 are mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 1, two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 6, and OFDM.
- the two resource particles whose symbols are 5, 6 and whose subcarrier number is 11; or DM-RS ports 7, 8 are mapped to two resource particles whose OFDM symbols are 5, 6 and the subcarrier number is 6, OFDM symbols
- the DM-RS port 9, 10 is mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 0, two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 5, and an OFDM symbol of 5, 6 and two resource particles with a subcarrier number of 10; or, DM-RS ports 9, 10 are mapped to two resource particles with an OFDM symbol of 5, 6 and a subcarrier number of 5, and the OFDM symbol is 12. And 13 resource particles having a subcarrier number of 0, and two resource particles having an OFDM symbol of 12 and 13 and a subcarrier number of 10.
- mapping the port of the DM-RS to the resource particle reduces the density of the resource particle used by the DM-RS; performing rank 5-8 During transmission, mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- the distinction between ports 7, 8 or between ports 9, 10 is made by orthogonal superposition code division.
- one set of resource particles in the plurality of groups can be mapped to port 7, another set of resource particles mapped to port 8, another set of resource particles mapped to port 9, and another set The resource particles are mapped to port 10.
- the DM-RS port 7 is mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 1, two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 6, and an OFDM symbol of 5, 6 and two resource particles with a subcarrier number of 11;
- the DM-RS port 8 is mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 6, two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 1, and an OFDM symbol of 12. 13 and two resource particles with a subcarrier number of 11;
- the DM-RS port 9 is mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 0. Two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 5, and two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 10;
- the DM-RS port 10 is mapped to two resource particles having an OFDM symbol of 5, 6 and a subcarrier number of 5, two resource particles having an OFDM symbol of 12, 13 and a subcarrier number of 0, and an OFDM symbol of 12. 13 and two resource particles with a subcarrier number of 10.
- mapping the port of the DM-RS to the resource particle reduces the density of the resource particle used by the DM-RS; performing rank 5-8 During transmission, mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged. For example, when performing a rank 1-4 transmission, between ports 7, 8 or between ports 9, 10 are distinguished by time division multiplexing; between ports 7, 8 and ports 9, 10 are performed by frequency division multiplexing. distinguish.
- mapping the ports of the DM-RS to the resource particles reduces the density of resource particles used by the DM-RS; when performing the rank 2-8 transmission, the DM- Mapping the ports of the RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- mapping the port of the DM-RS to the resource particle reduces the density of resource particles used by the DM-RS; when performing the transmission of rank 3-8, Mapping the ports of the DM-RS to the resource particles makes the density of the resource particles used by the DM-RS unchanged.
- the resource configuration apparatus 1400 of the DM-RS may further include:
- the signaling sending unit 1402 sends signaling to the user equipment to indicate information of resource particles used by the DM-RS, wherein the information indicates a location and/or a number of the resource particles in the subframe.
- the information indicated by the signaling includes: a resource particle density used by the DM-RS of the user equipment, group information corresponding to the user equipment, and a total number of resource particles used by the MU-MIMO DM-RS; or The resource particle density used by the DM-RS of the user equipment, and the total number of resource particles used by the MU-MIMO DM-RS.
- the signaling may also be used to indicate information for rate matching of the DM-RS.
- the embodiment further provides a base station, which is configured with the resource configuration apparatus 1400 of the DM-RS as described above.
- FIG. 15 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
- base station 1500 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200.
- the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200 to receive various information sent by the user equipment and sent to the user equipment. Request information.
- the central processing unit 200 can be configured to implement the functions of the resource configuration apparatus 1400 of the DM-RS.
- the base station 1500 can implement the resource configuration method of the DM-RS as described in Embodiments 1 to 3.
- the base station 1500 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It is to be noted that the base station 1500 does not have to include all of the components shown in FIG. 15; in addition, the base station 1500 may also include components not shown in FIG. 15, and reference may be made to the prior art.
- the base station configures resources for transmitting DM-RSs for multiple user equipments that perform MU-MIMO.
- the resource particles for transmitting DM-RSs are divided into multiple groups, and the resource particles of different groups correspond to different ones.
- User equipment thereby, not only the user equipment can support high-dimensional MU-MIMO, but also the DM-RS density of the central user equipment can be reduced to improve resource utilization.
- FIG. 16 is a schematic diagram of a configuration of a communication system according to an embodiment of the present invention.
- the communication system 1600 includes a base station 1601 and a user equipment 1602.
- the resource allocation device 1400 of the DM-RS according to the fourth embodiment is disposed in the base station 1601.
- the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to perform a resource configuration method of the DM-RSs described in Embodiments 1 to 3 in the base station when the program is executed in a base station .
- the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the resource configuration method of the DM-RS described in Embodiments 1 to 3 in a base station.
- the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
- the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
- the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
- One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- One or more of the functional blocks described in the figures and/or one or more combinations of the functional blocks may also be implemented as a combination of computing devices. For example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
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Abstract
Description
Claims (20)
- 一种DM-RS的资源配置方法,应用于3D MIMO***中,所述方法包括:基站为进行MU-MIMO的多个用户设备配置传输DM-RS的资源;其中,将一个子帧中传输DM-RS的资源粒子分为多组,使得为至少一个用户设备或流传输DM-RS的资源粒子的密度被降低。
- 根据权利要求1所述的方法,其中,所述传输DM-RS的资源粒子为一个子帧的时频资源中的OFDM符号为5、6、12、13且子载波序号为1、6、11的12个资源粒子,和/或,OFDM符号为5、6、12、13且子载波序号为0、5、10的12个资源粒子;所述资源粒子被分为多组。
- 根据权利要求2所述的方法,其中,OFDM符号为5、6且子载波序号为0、1、10、11的8个资源粒子以及OFDM符号为12、13且子载波序号为5、6的4个资源粒子被分为一组,OFDM符号为12、13且子载波序号为0、1、10、11的8个资源粒子以及OFDM符号为5、6且子载波序号为5、6的4个资源粒子被分为另一组;或者,OFDM符号为5、6且子载波序号为0、1、5、6、10、11的12个资源粒子被分为一组,OFDM符号为12、13且子载波序号为0、1、5、6、10、11的12个资源粒子被分为另一组;或者,OFDM符号为5、6且子载波序号为5、6、10、11的8个资源粒子以及OFDM符号为12、13且子载波序号为0、1的4个资源粒子被分为一组,OFDM符号为12、13且子载波序号为5、6、10、11的8个资源粒子以及OFDM符号为5、6且子载波序号为0、1的4个资源粒子被分为另一组;或者,OFDM符号为5、6且子载波序号为0、1、5、6的8个资源粒子以及OFDM符号为12、13且子载波序号为10、11的4个资源粒子被分为一组,OFDM符号为12、13且子载波序号为0、1、5、6的8个资源粒子以及OFDM符号为5、6且子载波序号为10、11的4个资源粒子被分为另一组;或者,OFDM符号为5、6且子载波序号为10、11的4个资源粒子以及OFDM符号为12、13且子载波序号为10、11的4个资源粒子被分为一组,OFDM符号为5、6且子载波序号为5、6的4个资源粒子以及OFDM符号为12、13且子载波序号为5、6的4个资源粒子被分为另一组,OFDM符号为5、6且子载波序号为0、1的4个资 源粒子以及OFDM符号为12、13且子载波序号为0、1的4个资源粒子被分为另一组;或者,OFDM符号为5、6且子载波序号为10、11的4个资源粒子以及OFDM符号为12、13且子载波序号为5、6的4个资源粒子被分为一组,OFDM符号为5、6且子载波序号为5、6的4个资源粒子以及OFDM符号为12、13且子载波序号为0、1的4个资源粒子被分为另一组,OFDM符号为5、6且子载波序号为0、1的4个资源粒子以及OFDM符号为12、13且子载波序号为10、11的4个资源粒子被分为另一组。
- 根据权利要求1所述的方法,其中,将所述多组中的一组资源粒子映射到某一用户设备或流的端口7,8,将另一组资源粒子映射到另一用户设备或流的端口7,8;和/或将一组资源粒子映射到某一用户设备或流的端口9,10,将另一组资源粒子映射到另一用户设备或流的端口9,10。
- 根据权利要求4所述的方法,其中,端口7,8被映射到OFDM符号为5、6且子载波序号为1的两个资源粒子,OFDM符号为12、13且子载波序号为6的两个资源粒子,以及OFDM符号为5、6且子载波序号为11的两个资源粒子上;或者,端口7,8被映射到OFDM符号为5、6且子载波序号为6的两个资源粒子,OFDM符号为12、13且子载波序号为1的两个资源粒子,以及OFDM符号为12、13且子载波序号为11的两个资源粒子上;端口9,10被映射到OFDM符号为5、6且子载波序号为0的两个资源粒子,OFDM符号为12、13且子载波序号为5的两个资源粒子,以及OFDM符号为5、6且子载波序号为10的两个资源粒子上;或者,端口9,10被映射到OFDM符号为5、6且子载波序号为5的两个资源粒子,OFDM符号为12、13且子载波序号为0的两个资源粒子,以及OFDM符号为12、13且子载波序号为10的两个资源粒子上。
- 根据权利要求4所述的方法,其中,在进行秩为1-4的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度被减少;在进行秩为5-8的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度不变。
- 根据权利要求1所述的方法,其中,将所述多组中的一组资源粒子映射到端口7,将另一组资源粒子映射到端口8,将另一组资源粒子映射到端口9,将另一组 资源粒子映射到端口10。
- 根据权利要求7所述的方法,其中,端口7被映射到OFDM符号为5、6且子载波序号为1的两个资源粒子,OFDM符号为12、13且子载波序号为6的两个资源粒子,以及OFDM符号为5、6且子载波序号为11的两个资源粒子上;端口8被映射到OFDM符号为5、6且子载波序号为6的两个资源粒子,OFDM符号为12、13且子载波序号为1的两个资源粒子,以及OFDM符号为12、13且子载波序号为11的两个资源粒子上;端口9被映射到OFDM符号为5、6且子载波序号为0的两个资源粒子,OFDM符号为12、13且子载波序号为5的两个资源粒子,以及OFDM符号为5、6且子载波序号为10的两个资源粒子上;端口10被映射到OFDM符号为5、6且子载波序号为5的两个资源粒子,OFDM符号为12、13且子载波序号为0的两个资源粒子,以及OFDM符号为12、13且子载波序号为10的两个资源粒子上。
- 根据权利要求7所述的方法,其中,在进行秩为1-4的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度被减少;在进行秩为5-8的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度不变;或者,在进行秩为1的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度被减少;在进行秩为2-8的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度不变;或者,在进行秩为1-2的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度被减少;在进行秩为3-8的传输时,将DM-RS的端口映射到资源粒子上使得DM-RS所使用的资源粒子的密度不变。
- 根据权利要求9所述的方法,其中,端口7,8之间或者端口9,10之间通过时分复用或码分复用进行区分;端口7,8和端口9,10之间通过频分复用进行区分。
- 根据权利要求1所述的方法,其中,所述方法还包括:所述基站向所述用户设备发送信令来指示DM-RS所使用的资源粒子的信息,其中所述信息指示所述资源粒子在所述子帧中的位置和/或数目。
- 根据权利要求11所述的方法,其中,所述信令指示的信息包括:所述用户设备的DM-RS所使用的资源粒子密度、所述用户设备的DMRS所使用的资源对应的组信息以及MU-MIMO时DM-RS总共使用的资源粒子数目;或者包括:所述用户设备的DM-RS所使用的资源粒子密度,以及DM-RS总共使用的资源粒子数目。
- 根据权利要求12所述的方法,其中,所述信令为动态信令,所述动态信令包括3比特信息;所述3比特信息指示如下8个状态:对于所述用户设备的DM-RS使用12个资源粒子时,MU-MIMO时DM-RS总共使用的资源粒子数目为12和24的两个状态;对于所述用户设备的DM-RS使用6个资源粒子时,使用第一组DM-RS资源,MU-MIMO时DM-RS总共使用的资源粒子数目为6、12和24的三个状态;对于所述用户设备的DM-RS使用6个资源粒子时,使用第二组DM-RS资源,MU-MIMO时DM-RS总共使用的资源粒子数目为6、12和24的三个状态。
- 根据权利要求12所述的方法,其中,所述信令为动态信令,所述动态信令包括3比特信息;其中1比特信息指示所述用户设备的DM-RS使用6资源粒子还是12资源粒子,另2比特信息指示MU-MIMO时DM-RS总共使用的资源粒子数目为6、12、18、24;或者,所述动态信令包括2比特信息;其中1比特信息指示所述用户设备的DM-RS使用6资源粒子还是12资源粒子,另1比特信息指示MU-MIMO时DM-RS总共使用的资源粒子数目为12、24。
- 根据权利要求12所述的方法,其中,所述信令为高层信令和动态信令,所述高层信令指示:该用户设备的DM-RS使用6个资源粒子还是12个资源粒子;所述动态信令包括3比特信息,其中1比特信息指示所述用户设备的DM-RS使用第一组还是第二组的资源,另1比特信息指示没有被所述用户设备使用的组的资源是否被使用,另1比特信息指示DM-RS所使用的总共24个资源粒子是否都被占用。
- 根据权利要求12所述的方法,其中,所述信令为高层信令和动态信令,所述高层信令指示:该用户设备的DM-RS使用6个资源粒子还是12个资源粒子;所述动态信令指示:进行MU-MIMO时DM-RS总共占用的资源数目为6RE还是12RE、18RE、24RE;或者,所述动态信令指示:进行MU-MIMO时DM-RS总共 占用的资源数目为12RE还是24RE。
- 根据权利要求13所述的方法,其中,所述信令还用于指示对DM-RS进行速率匹配的信息。
- 一种DM-RS的资源配置装置,应用于3D MIMO***中,所述装置包括:资源配置单元,为进行MU-MIMO的多个用户设备配置传输DM-RS的资源;其中,将一个子帧中传输DM-RS的资源粒子分为多组,使得为至少一个用户设备或流传输DM-RS的资源粒子的密度被降低。
- 根据权利要求18所述的装置,其中,所述装置还包括:信令发送单元,向所述用户设备发送信令来指示DM-RS所使用的资源粒子的信息,其中所述信息指示所述资源粒子在所述子帧中的位置和/或数目。
- 一种通信***,所述通信***包括:基站,为进行MU-MIMO的多个用户设备配置传输DM-RS的资源;其中,将一个子帧中传输DM-RS的资源粒子分为多组,使得为至少一个用户设备或流传输DM-RS的资源粒子的密度被降低。
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EP14905396.9A EP3217585A4 (en) | 2014-11-07 | 2014-11-07 | Method and apparatus for allocating resource for dm-rs, and communication system |
KR1020177012423A KR20170067837A (ko) | 2014-11-07 | 2014-11-07 | Dm-rs 자원을 구성하기 위한 방법 및 장치와 통신 시스템 |
JP2017523835A JP2017539143A (ja) | 2014-11-07 | 2014-11-07 | Dm−rsのリソース構成方法、装置及び通信システム |
CN201480082508.9A CN106797279A (zh) | 2014-11-07 | 2014-11-07 | Dm‑rs的资源配置方法、装置以及通信*** |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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CN103430617A (zh) * | 2011-04-01 | 2013-12-04 | 华为技术有限公司 | 通讯***中传输和接收控制信道的***和方法 |
WO2014007512A1 (ko) * | 2012-07-02 | 2014-01-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널상태정보 보고 방법 및 장치 |
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---|---|---|---|---|
CN101868055B (zh) * | 2010-05-31 | 2012-08-15 | 华为技术有限公司 | 一种无线基站 |
US20150304014A1 (en) * | 2011-08-11 | 2015-10-22 | Interdigital Patent Holdings, Inc. | Multiple-input and multiple-ouptut (mimo) enhancement for backhaul relays |
CN104185960B (zh) * | 2011-11-16 | 2018-03-20 | 三星电子株式会社 | 无线通信***中发送控制信息的方法和装置 |
EP3252986B1 (en) * | 2012-08-10 | 2021-10-06 | Huawei Technologies Co., Ltd. | Methods and nodes in a wireless communication system |
TWI617148B (zh) * | 2012-09-28 | 2018-03-01 | 內數位專利控股公司 | 用於報告回饋的無線發射/接收單元及方法 |
WO2014129858A1 (ko) * | 2013-02-24 | 2014-08-28 | 엘지전자 주식회사 | 무선 통신 시스템에서 3-차원 빔포밍을 위한 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 |
WO2014161141A1 (en) * | 2013-04-01 | 2014-10-09 | Panasonic Intellectual Property Corporation Of America | Transmission apparatus and control signal mapping method |
-
2014
- 2014-11-07 KR KR1020177012423A patent/KR20170067837A/ko not_active Application Discontinuation
- 2014-11-07 WO PCT/CN2014/090648 patent/WO2016070430A1/zh active Application Filing
- 2014-11-07 CN CN201480082508.9A patent/CN106797279A/zh active Pending
- 2014-11-07 JP JP2017523835A patent/JP2017539143A/ja active Pending
- 2014-11-07 EP EP14905396.9A patent/EP3217585A4/en not_active Withdrawn
-
2017
- 2017-05-04 US US15/586,671 patent/US20170237590A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103430617A (zh) * | 2011-04-01 | 2013-12-04 | 华为技术有限公司 | 通讯***中传输和接收控制信道的***和方法 |
CN103391151A (zh) * | 2012-05-10 | 2013-11-13 | 华为终端有限公司 | 在增强型物理下行控制信道上传输信息的方法及设备 |
WO2014007512A1 (ko) * | 2012-07-02 | 2014-01-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널상태정보 보고 방법 및 장치 |
Non-Patent Citations (2)
Title |
---|
ERICSSON ET AL.: "System results for HSUPA beam forming diversity with 3D antennas, R1-101300", 3GPP TSG RAN WG1 MEETING #60, 22 February 2010 (2010-02-22), San Francisco, USA, XP050418800 * |
See also references of EP3217585A4 * |
Also Published As
Publication number | Publication date |
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EP3217585A4 (en) | 2018-06-27 |
CN106797279A (zh) | 2017-05-31 |
EP3217585A1 (en) | 2017-09-13 |
US20170237590A1 (en) | 2017-08-17 |
JP2017539143A (ja) | 2017-12-28 |
KR20170067837A (ko) | 2017-06-16 |
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