JP6770561B2 - Resource setting method, user equipment, and base station - Google Patents

Description

The present invention relates to the field of communication, and more particularly to resource setting methods, user devices, and base stations.

As the number of wireless users and wireless data traffic grow exponentially, users are imposing higher demands on the capacity and seamless coverage of their wireless networks. In order to meet the demands of users, antenna forms of active antenna systems (AAS for short) are widely used in the telecommunications industry.

Each row of antenna elements in the AAS can be connected to multiple power amplifiers. Therefore, a plurality of antenna ports can be formed separately in the horizontal dimension and the vertical dimension. In addition, in order to ensure that the base station can flexibly provide better signal coverage to the user in the vertical direction, the prior art allows the down tilt and beam shape to be automatically and flexibly adjusted in the vertical direction. A drive network is provided (the main function of the drive network is to serve users in different scenarios with different antenna ports by mapping vertical antenna elements to antenna ports). The structure of the drive network is
Where Q is a matrix containing a p × k block matrix, p is the number of vertical antenna ports in a row, and k is the number of optional drive network weighting candidates. A _i is a block matrix in the matrix Q, indicating that the block matrix is a weight vector used to map z (z ≧ 1) antenna elements to one antenna port, where α _i is the th. It is a complex numerical weighting coefficient on the antenna port of 2. In this way, by selecting different columns in the drive network Q, adaptive reference signals can be set for users in different scenarios.

For example, a three-dimensional Urban Micro (3DUMi) scenario in a 3rd Generation Partnership Project (3GPP for short) is used as an example. In this scenario, if the base station has a height of 10 meters, the building has 8 floors, and each floor is 3 meters high, it provides sufficiently good signal coverage for all users throughout the building. To ensure that it can be done, the base station assigns a 12 degree downtilt beam to users from floors 1 to 4, which are lower than the height of the base station, and is higher than the height of the base station 5 Users from the 8th floor to the 8th floor can be assigned a -6 degree downtilt beam (downtilt beam projected upward from the base station). Therefore, the drive network in this scenario
Where A ₁ is a down tilt beam vector pointing to 12 degrees and A ₂ is a down tilt beam vector pointing to -6 degrees. The drive network Q'contains six different beams (each beam corresponds to one direction and one width). Based on the six different beams in the drive network Q', the base station can assign users in different scenarios a reference signal corresponding to a reference signal based on the different beam.

However, when setting a reference signal for a user device (User Feedback, UE for short), the base station sends a measurement reference signal to the UE corresponding to all possible combinations of settings in the drive network. By feeding back the channel quality information corresponding to the UE, the base station provides the optimum drive network setting (that is, the optimum reference signal) from the possible combinations according to the fed-back channel quality information and the measurement reference corresponding to the setting. The present inventor has found that it is necessary to select a signal. Specifically, Q'is used as an example. Up to 6 antenna ports can be formed at Q'. Up to 2 antenna ports need to be formed
Two antenna ports are formed among the combinations of possible drive network settings, and each combination of settings corresponds to one transmission and reference signal to be measured. Therefore, the presence of a large number of combination schemes increases the reference signal and the corresponding measurement and feedback overhead.

Embodiments of the present invention can provide resource setting methods, user equipment, and base stations to reduce the reference signal used for measurement and the corresponding measurement and feedback overhead.

In order to achieve the above object, the following technical solutions are used in embodiments of the present invention.

According to the first aspect
A step in which a base station transmits M reference signals to a user equipment UE in N time units in a time unit set, the reference signals being used by the UE to perform channel quality measurements, M. Each reference signal in the reference signal corresponds to one precoding matrix information, a step to transmit, and
A step of receiving the channel quality instruction information transmitted by the UE, and a step of receiving the channel quality instruction information determined by the UE according to M reference signals.
Steps to select the best reference signal resource for the UE according to the channel quality indications,
A resource configuration method is provided that includes a step of transmitting the optimal reference signal to the UE according to the optimal reference signal resource.

In the first possible implementation of the first aspect, the method is performed prior to the step of transmitting M reference signals to the user equipment UE by the base station in N time units within the time unit set.
It is a step of transmitting the resource setting information of M reference signals to the UE in N time units in the time unit set by the base station, and the resource setting information of the reference signal is the port information of the reference signal and the reference signal. Further includes a step of transmitting, which comprises at least one of the numbering information, or the precoding information corresponding to the reference signal.

In the second possible implementation of the first aspect, the channel quality instruction information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

In the third possible implementation of the first aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the first aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In relation to the first possible implementation of the first aspect, in the fifth possible implementation of the first aspect, when the reference signal is a cell-specific reference signal, the base station uses a broadcast channel. Instruct the resource setting information of the reference signal.

In connection with any one of the first to fifth possible implementations of the first aspect or the first aspect, in the sixth possible implementation of the first aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

In the seventh possible implementation of the first aspect, the step of transmitting the optimal reference signal to the UE according to the optimal reference signal resource is specifically.
Each time unit after the time unit set and before the next time unit set is set by the base station includes the step of transmitting the optimum reference signal to the UE according to the optimum reference signal resource.

According to the second aspect
A step of receiving the M reference signals transmitted by the base station in N time units in the time unit set by the user equipment UE, in which each reference signal in the M reference signals is one pre. The receiving step and the corresponding step corresponding to the coding matrix information,
A step of reporting channel quality instruction information to the base station based on the M reference signals so that the base station selects the optimum reference signal resource for the UE according to the channel quality instruction information.
A channel quality measurement method is provided that includes receiving the optimal reference signal transmitted by the base station according to the optimal reference signal resource.

In the first possible implementation of the second aspect, the method prior to the step of receiving the M reference signals transmitted by the base station by the user equipment UE in N time units within the time unit set. Is
It is a step of receiving the resource setting information of M reference signals transmitted by the base station in N time units in the time unit set by the UE, and the resource setting information of the reference signal is the port information of the reference signal. Further includes a step of receiving, including at least one of the numbering information of the reference signal, or the precoding information corresponding to the reference signal.

In the second possible implementation of the second aspect, the channel quality instruction information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

In the third possible implementation of the second aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the second aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In relation to the first possible implementation of the second aspect, in the fifth possible implementation of the second aspect, if the reference signal is a cell-specific reference signal, the method is:
The UE further includes a step of detecting the broadcast channel and acquiring the resource setting information of the reference signal.

In connection with any one of the first to fifth possible implementations of the second aspect or the second aspect, in the sixth possible implementation of the second aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

In the seventh possible implementation of the second aspect, the step of receiving the optimal reference signal transmitted by the UE according to the optimal reference signal resource by the base station is specifically:
Includes the step of receiving the best reference signal transmitted by the base station according to the best reference signal resource in each time unit after the time unit set and before the next time unit set is set by the UE. ..

According to the third aspect
It is a step of setting M channel quality measurement processes for the user equipment UE in N time units in the time unit set by the base station, and each channel quality measurement process corresponds to one reference signal setting information. Then, the reference signal setting information is used by the UE to perform channel quality measurement based on the set reference signal, and M channel quality measurement processes include L types of channel quality measurement processes, respectively. A resource setting method is provided that includes a maximum of N channel quality measurement processes of a type and includes a setting step of L ≦ M ≦ L × N.

In the first possible implementation of the third aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible mounting method of the third aspect or the third aspect, in the second possible mounting method of the third aspect, each type in the channel quality measurement process of L types. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In connection with the second possible implementation of the third aspect, in the third possible implementation of the third aspect, the base station informs the user equipment UE in N time units within the time unit set. On the other hand, after the step of setting up M channel quality measurement processing, the method is
Depending on the base station, the step of selecting the optimum type of channel quality measurement process according to the channel quality measurement result corresponding to the L types of channel quality measurement process, and
The base station further includes the step of transmitting a reference signal to the UE according to the reference signal setting information corresponding to that type of channel quality measurement process.

In relation to the second possible mounting method or the third possible mounting method of the third aspect, in the fourth possible mounting method of the third aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation of the third aspect, each channel quality measurement process in the M channel quality measurement process includes an identification field, for the identification field to indicate the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the third aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the first to sixth possible implementations of the third aspect or the third aspect, in the seventh possible implementation of the third aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

According to the fourth aspect
It is a step of receiving the M channel quality measurement processes set by the base station in N time units in the time unit set by the user equipment UE, and each channel quality measurement process becomes one reference signal setting information. Correspondingly, M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes up to N channel quality measurement processes, L ≦ M ≦ L × N. Is the step to receive and
The UE provides a channel quality measurement method that includes M set channel quality measurement processes and steps to perform channel quality measurements based on reference signals corresponding to each channel quality measurement process.

In the first possible implementation of the fourth aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible mounting method of the fourth aspect or the fourth aspect, in the second possible mounting method of the fourth aspect, each type in the L-type channel quality measurement process. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In relation to the second possible implementation method of the fourth aspect, in the third possible implementation method of the fourth aspect, M sets of channel quality measurement processing and each channel quality measurement are performed by the UE. After the step of performing a channel quality measurement based on the reference signal corresponding to the processing, the method
The UE reports the channel quality measurement results corresponding to the L types of channel quality measurement processing to the base station, and the base station is the optimum type according to the channel quality measurement results corresponding to the L types of channel quality measurement processing. Steps to select the channel quality measurement process of
It further includes the step of receiving the reference signal transmitted by the base station according to the reference signal setting information corresponding to the optimum type of channel quality measurement process selected by the UE.

In relation to the second possible mounting method or the third possible mounting method of the fourth aspect, in the fourth possible mounting method of the fourth aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation method of the fourth aspect, each channel quality measurement process in the M channel quality measurement processes includes an identification field, and the identification field indicates the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the fourth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the first to sixth possible implementations of the fourth aspect or the fourth aspect, in the seventh possible implementation of the fourth aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

According to the fifth aspect
A transmission unit configured to transmit M reference signals to the user equipment UE in N time units in a time unit set, the reference signals used by the UE to perform channel quality measurements. A transmission unit in which each reference signal in the M reference signals corresponds to one precoding matrix information, and
A receiving unit configured to receive channel quality instruction information transmitted by the UE, wherein the channel quality instruction information is determined by the UE according to M reference signals.
Includes a selection unit configured to select the best reference signal resource for the UE according to channel quality indications.
A base station is provided in which the transmitting unit is configured to transmit the optimum reference signal to the UE according to the optimum reference signal resource.

In the first possible implementation of the fifth aspect, the transmit unit is further configured to transmit resource configuration information for M reference signals to the UE in N time units within the time unit set for reference. The resource setting information of the signal includes at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal.

In the second possible implementation of the fifth aspect, the channel quality instruction information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

In the third possible implementation of the fifth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the fifth aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In connection with the first possible implementation of the fifth aspect, in the fifth possible implementation of the fifth aspect, when the reference signal is a cell-specific reference signal, the base station uses a broadcast channel. Instruct the resource setting information of the reference signal.

In connection with any one of the first to fifth possible implementations of the fifth aspect or the fifth aspect, in the sixth possible implementation of the fifth aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

In the seventh possible implementation of the fifth aspect, when the transmission unit specifically transmits the optimum reference signal to the UE according to the optimum reference signal resource, the transmission unit specifically.
At each time unit after the time unit set and before the next time unit set is set, it is configured to send the optimal reference signal to the UE according to the optimal reference signal resource.

According to the sixth aspect
A receiving unit configured to receive M reference signals transmitted by a base station in N time units in a time unit set, and each reference signal in the M reference signals is one. Receiving unit and receiving unit corresponding to precoding matrix information,
A selection configured to report channel quality indications to the base station based on the M reference signals received by the receiving unit so that the base station selects the best reference signal resource for the UE according to the channel quality indications. Including the unit
User equipment is provided in which the receiving unit is further configured to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource.

In the first possible implementation of the sixth aspect, the receiving unit is further configured to receive resource configuration information for M reference signals transmitted by the base station in N time units within the time unit set. The resource setting information of the reference signal is configured and includes at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal.

In the second possible implementation of the sixth aspect, the channel quality instruction information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

In the third possible implementation of the sixth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the sixth aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In connection with the first possible implementation of the sixth aspect, in the fifth possible implementation of the sixth aspect, if the reference signal is a cell-specific reference signal, the user equipment
It further includes a detection unit configured to detect the broadcast channel and obtain resource configuration information for the reference signal.

In connection with any one of the first to fifth possible implementations of the sixth aspect or the sixth aspect, in the sixth possible implementation of the sixth aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

In the seventh possible implementation of the sixth aspect, the receiving unit specifically receives the optimum reference signal transmitted by the base station according to the optimum reference signal resource.
At each time unit after the time unit set and before the next time unit set is set, the base station is configured to receive the optimum reference signal transmitted according to the optimum reference signal resource.

According to the seventh aspect
A setting unit configured to set M channel quality measurement processes for the user equipment UE in N time units in the time unit set, and each channel quality measurement process has one reference signal setting information. Correspondingly, the reference signal setting information is used by the UE to perform channel quality measurement based on the set reference signal, and M channel quality measurement processes include L types of channel quality measurement processes. , Each type of channel quality measurement process comprises up to N channel quality measurement processes, L ≦ M ≦ L × N, including a setting unit, a base station is provided.

In the first possible implementation of the seventh aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible mounting method of the seventh aspect or the seventh aspect, the second possible mounting method of the seventh aspect is each type in the L-type channel quality measurement process. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In connection with the second possible implementation of the seventh aspect, in the third possible implementation of the seventh aspect, the base station is
A selection unit configured to select the optimum type of channel quality measurement process according to the channel quality measurement results corresponding to the L types of channel quality measurement process.
It further includes a transmit unit configured to transmit the reference signal to the UE according to the reference signal configuration information corresponding to that type of channel quality measurement process.

In relation to the second possible mounting method or the third possible mounting method of the seventh aspect, in the fourth possible mounting method of the seventh aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation method of the seventh aspect, each channel quality measurement process in the M channel quality measurement processes includes an identification field, and the identification field indicates the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the seventh aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the first to sixth possible implementations of the seventh aspect or the seventh aspect, in the seventh possible implementation of the seventh aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

According to the eighth aspect
A receiving unit configured to receive M channel quality measurement processes set by the base station in N time units in the time unit set, and each channel quality measurement process has one reference signal setting information. Corresponding to, M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes up to N channel quality measurement processes, L ≤ M ≤ L × The receiving unit, which is N,
A user including a set of M channel quality measurement processes received by a receiving unit and a measurement unit configured to perform channel quality measurements based on a reference signal corresponding to each channel quality measurement process. Equipment is provided.

In the first possible implementation of the eighth aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible mounting method of the eighth aspect or the eighth aspect, the second possible mounting method of the eighth aspect is each type in the L-type channel quality measurement process. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In connection with the second possible mounting method of the eighth aspect, in the third possible mounting method of the eighth aspect, the user equipment has a channel quality measurement corresponding to L types of channel quality measurement processing. It further includes a reporting unit configured to report the results to the base station so that the base station selects the most suitable type of channel quality measurement process according to the channel quality measurement results corresponding to the L types of channel quality measurement process. ,
The receiving unit is further configured to receive the reference signal transmitted by the base station according to the reference signal setting information corresponding to the selected optimum type of channel quality measurement process.

In relation to the second possible mounting method or the third possible mounting method of the eighth aspect, in the fourth possible mounting method of the eighth aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation of the eighth aspect, each channel quality measurement process in the M channel quality measurement process includes an identification field, for the identification field to indicate the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the eighth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the first to sixth possible implementations of the eighth aspect or the eighth aspect, in the seventh possible implementation of the eighth aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

According to the ninth aspect
A communication unit configured to communicate with an external device,
Sending M reference signals to the user equipment UE in N time units in a time unit set, the reference signals being used by the UE to perform channel quality measurements, of the M reference signals. Each reference signal in it corresponds to one precoding matrix information, transmitting and
The communication unit is used to receive the channel quality instruction information transmitted by the UE, and the channel quality instruction information is determined and received by the UE according to M reference signals.
Choosing the best reference signal resource for the UE according to the channel quality indications,
A base station is provided that includes a processor that is configured to use the communication unit to transmit the optimal reference signal to the UE according to the optimal reference signal resource.

In the first possible implementation of the ninth aspect, the processor uses a communication unit to transmit resource configuration information for M reference signals to the UE in N time units within the time unit set. The resource setting information of the reference signal is further configured to perform transmission, including at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal. Will be done.

In the second possible implementation of the ninth aspect, the channel quality instruction information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

In the third possible implementation of the ninth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the ninth aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In relation to the first possible implementation of the ninth aspect, in the fifth possible implementation of the ninth aspect, when the reference signal is a cell-specific reference signal,
The base station uses the broadcast channel to indicate the resource setting information of the reference signal.

In connection with any one of the first to fifth possible implementations of the ninth aspect or the ninth aspect, in the sixth possible implementation of the ninth aspect, the time unit set is the base. The station notifies the UE periodically or aperiodically.

In the seventh possible implementation of the ninth aspect, when the communication unit is used to transmit the optimum reference signal to the UE according to the optimum reference signal resource, the processor specifically.
The communication unit is configured to send the best reference signal to the UE according to the best reference signal resource at each time unit after the time unit set and before the next time unit set is set. To.

According to the tenth aspect
A communication unit configured to communicate with an external device,
The communication unit is used to receive M reference signals transmitted by a base station in N time units in a time unit set, and each reference signal in the M reference signals is one. Corresponding to precoding matrix information, receiving and
To report the channel quality instruction information to the base station based on the M reference signals so that the base station selects the optimum reference signal resource for the UE according to the channel quality instruction information.
User equipment is provided that includes a processor configured to use a communication unit to receive and perform an optimal reference signal transmitted by a base station according to an optimal reference signal resource.

In the first possible implementation of the tenth aspect, the processor uses a communication unit to provide resource setting information for M reference signals transmitted by the base station in N time units within the time unit set. To receive, the resource setting information of the reference signal includes at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal. Is further configured.

In the second possible implementation of the tenth aspect, the channel quality instruction information includes M channel quality measurement results, an optimal channel quality measurement result, or a reference signal number.

In the third possible implementation of the tenth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In the fourth possible implementation of the tenth aspect, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

In relation to the first possible implementation of the tenth aspect, in the fifth possible implementation of the tenth aspect, when the reference signal is a cell-specific reference signal,
The processor is further configured to detect the broadcast channel and obtain resource configuration information for the reference signal.

In connection with any one of the first to fifth possible implementations of the tenth aspect or the tenth aspect, in the sixth possible implementation of the tenth aspect, the time unit set is based. The station notifies the UE periodically or aperiodically.

In a seventh possible implementation of the tenth aspect, when the communication unit is used to receive an optimal reference signal transmitted by a base station according to an optimal reference signal resource, the processor specifically comprises.
At each time unit after the time unit set and before the next time unit set is set, the communication unit is used to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource. It is configured as follows.

According to the eleventh aspect
A communication unit configured to communicate with an external device,
Using the communication unit, M channel quality measurement processes are set for the user equipment UE in N time units in the time unit set, and each channel quality measurement process is one reference signal setting information. Correspondingly, the reference signal setting information is used by the UE to perform channel quality measurement based on the set reference signal, and M channel quality measurement processes include L types of channel quality measurement processes. Provided by the base station, each type of channel quality measurement process includes up to N channel quality measurement processes, L ≤ M ≤ L x N, including a processor configured to perform the setting. Will be done.

In the first possible implementation of the eleventh aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible mounting method of the eleventh aspect or the eleventh aspect, in the second possible mounting method of the eleventh aspect, each type in the channel quality measurement process of L types. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In connection with the second possible implementation of the eleventh aspect, in the third possible implementation of the eleventh aspect, the processor corresponds to the L types of channel quality measurement processing channel quality measurement results. The optimum type of channel quality measurement process is selected according to the above, and the communication unit is further configured to transmit the reference signal to the UE according to the reference signal setting information corresponding to that type of channel quality measurement process.

In relation to the second possible mounting method or the third possible mounting method of the eleventh aspect, in the fourth possible mounting method of the eleventh aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation of the eleventh aspect, each channel quality measurement process in the M channel quality measurement processes includes an identification field, and the identification field indicates the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the eleventh aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the eleventh aspects or the first to sixth possible implementations of the eleventh aspect, in the seventh possible implementation of the eleventh aspect, the time unit set is based. The station notifies the UE periodically or aperiodically.

According to the twelfth aspect
A communication unit configured to communicate with an external device,
The communication unit is used to receive M channel quality measurement processes set by the base station in N time units in the time unit set, and each channel quality measurement process has one reference signal setting information. Corresponding to, M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes up to N channel quality measurement processes, L ≤ M ≤ L × N, to receive and
Provided by a user device, including a processor configured to perform M channel quality measurements and perform channel quality measurements based on a reference signal corresponding to each channel quality measurement process. Will be done.

In the first possible implementation of the twelfth aspect, each channel quality measurement process in the L types of channel quality measurement process corresponds to one precoding matrix information and any two types of channels. The precoding matrix information corresponding to the quality measurement process is different.

In relation to the first possible implementation method of the twelfth aspect or the twelfth aspect, in the second possible implementation method of the twelfth aspect, each type in the channel quality measurement process of L types. Channel quality measurement process corresponds to one channel quality measurement result, and the channel quality measurement result corresponding to each type of channel quality measurement process belongs to that type and M channel quality measurement by UE or base station. Acquired based on the channel quality measurement results in all channel quality measurement processes in the process.

In connection with the second possible implementation of the twelfth aspect, in the third possible implementation of the twelfth aspect, the processor uses the communication unit to perform L types of channel quality measurement processing. Report the corresponding channel quality measurement results to the base station so that the base station selects the optimum type of channel quality measurement process according to the channel quality measurement results corresponding to the L types of channel quality measurement processes. , The communication unit is further configured to receive the reference signal transmitted by the base station according to the reference signal setting information corresponding to the selected optimum type of channel quality measurement process.

In relation to the second possible mounting method or the third possible mounting method of the twelfth aspect, in the fourth possible mounting method of the twelfth aspect, the channel quality measurement result is the channel quality index CQI. It includes at least one of a precoding matrix index PMI, a rank index RI, a reference signal reception power RSRP, a reference signal reception quality RSRQ, or a reference signal strength index RSSI.

In the fifth possible implementation of the twelfth aspect, each channel quality measurement process in the M channel quality measurement process includes an identification field, and the identification field indicates the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same, including the channel quality measurement process identification information used.

In the sixth possible implementation of the twelfth aspect, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

In connection with any one of the first to sixth possible implementations of the twelfth aspect or the twelfth aspect, in the seventh possible implementation of the twelfth aspect, the time unit set is based. The station notifies the UE periodically or aperiodically.

According to the resource setting method, the user equipment, and the base station provided in the embodiment of the present invention, the base station transmits only M reference signals to the UE in N time units in the set time unit set. You don't have to. After receiving the M reference signals, the UE performs M channel quality measurements based on the M different reference signals, obtains the M channel quality measurement results, and obtains the M channel quality measurement results. Channel quality instruction information is transmitted to the base station according to the above. The base station selects the optimum reference signal for the UE according to the channel quality instruction information, and transmits the optimum reference signal to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set for the UE in N time units within the set time unit set. As a result, unnecessary reference signal settings by the base station are reduced. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the accompanying drawings required to illustrate the embodiments or prior art. Obviously, the accompanying drawings in the description below only show some embodiments of the present invention, and one of ordinary skill in the art would further derive other drawings from these attached drawings without creative effort. Will do.

It is a schematic flowchart of the resource setting method by one Embodiment of this invention. It is a schematic flowchart of another resource setting method by one Embodiment of this invention. It is a schematic flowchart of the other resource setting method by one Embodiment of this invention. It is a schematic flowchart of another resource setting method by one Embodiment of this invention. It is a schematic flowchart of the resource setting method by one Embodiment of this invention. It is a schematic flowchart of another resource setting method by one Embodiment of this invention. It is a schematic flowchart of the other resource setting method by one Embodiment of this invention. It is a schematic flowchart of another resource setting method by one Embodiment of this invention. It is a schematic structural drawing of the base station by one Embodiment of this invention. It is a schematic structural drawing of the user equipment by one Embodiment of this invention. It is a schematic structural drawing of another base station by one Embodiment of this invention. It is a schematic structural drawing of another user equipment by one Embodiment of this invention. It is a schematic structural drawing of the other base station by one Embodiment of this invention. It is a schematic structural drawing of the other user equipment by one Embodiment of this invention. It is a schematic structural drawing of the other base station according to one Embodiment of this invention. It is a schematic structural drawing of the other user equipment according to one Embodiment of this invention.

The technical solutions according to the embodiments of the present invention will be clearly described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part, not all, of the embodiments of the present invention. All other embodiments acquired by one of ordinary skill in the art based on embodiments of the invention without creative effort shall fall within the scope of protection of the invention.

One embodiment of the present invention provides a resource setting method, which can be implemented by a base station. As shown in FIG. 1, the method specifically comprises the following steps.

101. The base station transmits M reference signals to the UE in N time units in the time unit set.

The reference signal is used by the UE to perform channel quality measurements and reports. Specifically, each reference signal in the M reference signals corresponds to one precoding matrix information, and the precoding matrix information in each reference signal is the reference signal beam information corresponding to the reference signal. be able to. In addition, each reference signal corresponds to one reference signal based on a different beam, i.e., a reference signal associated with a weighting factor corresponding to a different beam. Specifically, the reference signal is a cell-specific reference signal (for example, a cell-specific reference signal (CRS) resource for short) or a user-specific reference signal (channel state information reference signal (Channel State Information Reference)). Signal, abbreviated as CSI-RS) resource) is included. This is not limited in the present invention.

For example, the time unit set can be a limit measurement subframe set set by the base station for the UE. The base station transmits M reference signals to the UE in N subframes in the limiting measurement subframe set. The N subframes can be N consecutive subframes or N discontinuous subframes. This is not limited herein. Specifically, the base station transmits at least one reference signal to the UE in each subframe. After receiving the reference signal, the UE performs the corresponding channel quality measurement and reporting in the subframe in response to the reference signal.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

Specifically, if the base station configures the UE to perform channel quality measurements and reports within a time unit set, the base station periodically according to a predetermined period of time and channel quality measurements within the time unit set. And the UE can be configured to perform reporting. The predetermined period refers to a long period in which the base station sets the UE to perform channel quality measurements and reports within an hourly set. The UE performs channel quality measurement and reporting within a time unit set according to a predetermined period of time. Alternatively, the base station can configure trigger signaling for the UE, causing the UE to perform channel quality measurements and reports within a time unit set according to the trigger signaling instructions.

Optionally, the time unit set is notified by the base station to the UE using control channels or upper layer signaling.

For example, the time unit set can be notified to the UE by the base station using the control channel. For example, a base station can add trigger signaling to the downlink control information format (Downlink Control Information Form, abbreviated as DCI form) of a physical downlink control channel (Physical Downlink Control Channel, abbreviated as PDCCH). Is sent to the UE so that the UE knows the set of time units set by the base station according to the trigger identifier in the trigger signaling. Alternatively, the time unit set can be notified by the base station to the UE using upper layer signaling. For example, the base station uses radio resource control (Radio Resource Control, RRC for short) signaling to send trigger signaling to the UE so that the UE knows the time unit set according to the trigger identifier in the trigger signaling.

Optionally, prior to step 101, the method further comprises the following steps:

101a. The base station transmits resource setting information of M reference signals to the UE in N time units in the time unit set.

The reference signal resource setting information refers to the necessary information required for transmitting the reference signal on the reference signal ports set to M by the base station. Specifically, the resource setting information of the reference signal includes at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal. The UE can receive the M reference signals transmitted by the base station only according to the resource setting information of the reference signals.

In addition, the base station optionally chooses to allow the UE to distinguish between different reference signal setting types (ie, different reference signal setting information corresponding to different beams) if the reference signal is a cell-specific reference signal. , The resource setting information of the reference signal can be instructed using the broadcast channel.

For example, if the reference signal corresponding to the cell-specific reference signal is a CRS, the base station should be on the broadcast channel in the corresponding time unit within the time unit set to allow the UE to distinguish between different CRS configuration information. , A CRS configuration field containing a CRS instruction identifier must be added to indicate the CRS configuration information, so that the UE performs blind detection to the corresponding broadcast channel and the CRS configuration corresponding to the CRS resource on an hourly basis. Information can be obtained. Broadcast channels include PBCH channels.

If the measurement reference signal is a user-specific reference signal, then in the time unit for transmitting the user-specific reference signal (eg, CSI-RS) in the time unit set, the base station will use the cell-specific reference signal (eg, CSI-RS) in that time unit. Note that CRS) needs to be transmitted at the same time. If the measurement reference signal is a cell-specific reference signal, the base station only needs to transmit the cell-specific reference signal at each time unit in the time unit set.

102. The base station receives the channel quality instruction information transmitted by the UE.

The channel quality instruction information is determined by the UE according to M reference signals. The channel quality instruction information includes M channel quality measurement results, the optimum channel quality measurement result, or the reference signal number.

The channel quality measurement result contains at least one measurement information. The measurement information in the channel quality measurement result includes a channel quality index (CQI for short), a precoding matrix index (PMI for short), a rank index (Rank Indicator for RI), and a reference signal. Received power (Reference Signal Received Power, abbreviated as RSRP), reference signal reception quality (Reference Signal Received Quality, abbreviated as RSRQ), or reference signal strength index (Reference Signal Strength Index), abbreviated as RS Including. For example, if the channel quality measurement is a CSI measurement, the UE obtains M CSI measurement results after performing M CSI measurements according to M reference signals.

103. The base station selects the optimum reference signal resource for the UE according to the channel quality instruction information.

104. The base station transmits the optimum reference signal to the UE according to the optimum reference signal resource.

By optional option, step 104 specifically includes the following steps:

104a. The base station transmits the optimum reference signal to the UE according to the optimum reference signal resource in each time unit after the time unit set and before the next time unit set is set.

For example, when selecting the optimum reference signal setting resource for the UE according to the M channel quality measurement results, can the base station directly select any measurement information in the M channel quality measurement results? Alternatively, at least two measurement information in the channel quality measurement results can be selected for comprehensive selection. For example, CSI measurement is used as an example. When the base station selects the optimum reference signal for the UE according to the CQI in the CSI measurement result, the base station directly uses the reference signal corresponding to the maximum CQI value in the M CSI measurement results as the optimum reference signal and is optimal. Reference signal can be assigned to the UE.

According to the resource setting method provided in this embodiment of the present invention, the base station needs to transmit only M reference signals to the UE in N time units within the set time unit set. After receiving the M reference signals, the UE performs M channel quality measurements based on the M different reference signals, obtains the M channel quality measurement results, and obtains the M channel quality measurement results. Channel quality instruction information is transmitted to the base station according to the above. The base station selects the optimum reference signal for the UE according to the channel quality instruction information, and transmits the optimum reference signal to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set for the UE in N time units within the set time unit set. As a result, unnecessary reference signal settings by the base station are reduced. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

One embodiment of the present invention provides a channel quality measuring method. For explanations of technical terms, concepts, and the like related to the first embodiment in the second embodiment, refer to the explanation of the first embodiment. Details will not be described again in this embodiment.

This embodiment can be implemented by the UE. Specifically, as shown in FIG. 2, the channel quality measuring method specifically includes the following steps.

201. The UE receives M reference signals transmitted by the base station in N time units in the time unit set.

Specifically, the time unit set is notified to the UE periodically or aperiodically by the base station. In addition, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

Optionally, prior to step 201, the method further comprises the following steps:

201a. The UE receives the resource setting information of M reference signals transmitted by the base station in N time units in the time unit set.

The reference signal resource setting information refers to the necessary information required for transmitting the reference signal on the reference signal ports set to M by the base station. Specifically, the resource setting information of the reference signal includes at least one of the port information of the reference signal, the number information of the reference signal, or the precoding information corresponding to the reference signal. The UE can receive the M reference signals transmitted by the base station only according to the setting information of the reference signals.

If, optionally, the reference signal is a cell-specific reference signal, after step 201, the method further comprises:

201b. The UE detects the broadcast channel and acquires the resource setting information of the reference signal.

For example, when the reference signal corresponding to the cell-specific reference signal is CRS, in order to be able to distinguish different CRS setting information, the UE performs blind detection on the broadcast channel corresponding to the base station at each time unit, and each It is necessary to acquire the CRS instruction identifier included in the CRS setting field in the broadcast channel, and the CRS setting information corresponding to the CRS is acquired according to the instruction of the CRS instruction identifier in each time unit. Broadcast channels include PBCH channels.

202. The UE reports the channel quality instruction information to the base station based on the M reference signals so that the base station selects the optimum reference signal resource for the UE according to the channel quality instruction information.

The channel quality instruction information is determined by the UE according to M reference signals. The channel quality instruction information includes M channel quality measurement results, the optimum channel quality measurement result, or the reference signal number.

203. The UE receives the optimum reference signal transmitted by the base station according to the optimum reference signal resource.

By arbitrary selection, step 203 specifically includes the following contents.

203a. The UE receives the optimal reference signal transmitted by the base station according to the optimal reference signal resource in each time unit after the time unit set and before the next time unit set is set.

According to the channel quality measurement method provided in this embodiment of the present invention, the UE receives M reference signals transmitted by the base station in N time units within a set time unit set. M times channel quality measurement is performed based on M different reference signals to acquire M channel quality measurement results, channel quality instruction information is acquired according to M channel quality measurement results, and the base station channels. The optimum reference signal for the UE is selected according to the quality instruction information, and the optimum reference signal is transmitted to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set and set for the UE in N time units within a set time unit set. In a time unit outside the set time unit set, the base station sets only the optimum reference signal selected from the M reference signals for the UE, and as a result, the setting of unnecessary reference signals by the base station is reduced. .. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

The following describes an example of the resource setting and channel quality measurement methods provided in one embodiment of the present invention in a particular scenario. For explanations of technical terms, concepts, and the like related to the above-described embodiments in the following embodiments, refer to the above-described embodiments.

For example, for N = 6 (see the 3D UMi scenario described in Background Techniques for specific application scenarios), virtual weighting is performed on each row of vertical antenna elements using a drive network. Six different beams are acquired. Based on the 6 beams, the corresponding virtual weighting matrix
Can be designed as. Each column of the matrix corresponds to one vertical beam of ports, and each beam corresponds to one direction and one width. α ₁ and α ₂ are complex numerical weighting factors, A ₁ is a down tilt beam vector pointing to 12 degrees, and A ₂ is a down tilt beam vector pointing to -6 degrees. Specifically, the first and second columns of the matrix correspond to a wide beam pointing at 12 degrees in the maximum value direction. The third and fourth columns of the matrix correspond to a wide beam pointing -6 degrees in the maximum value direction. The fifth column of the matrix corresponds to a narrow beam pointing 12 degrees in the direction of the maximum value. The sixth column of the matrix corresponds to a narrow beam pointing -6 degrees in the direction of the maximum value.

Based on the above contents, when the reference signal in this embodiment is a cell-specific reference signal such as CRS or a user-specific reference signal such as CSI-RS, as shown in FIG. 3, in this embodiment of the present invention. The resource setting and channel quality measurement methods provided specifically include the following steps.

a1. The base station separately transmits six different CSI-RSs or CRSs to the UE in six subframes within the limiting measurement subframe set according to six different beams.

a2. The UE makes 6 CSI measurements in the restricted measurement subframe set based on the 6 CRS or CSI-RS and obtains 6 CSI measurement results.

a3. The UE reports the 6 CSI measurement results to the base station, and the base station selects the optimum reference signal for the UE based on the 6 CSI results, or the UE selects the optimum CSI measurement among the 6 CSI measurement results. The result is reported to the base station, and the base station selects the optimum reference signal for the UE based on the optimum CSI measurement result, or the UE selects the optimum CSI measurement result among the six CSI measurement results. Alternatively, the CSI-RS number is reported to the base station, and the base station selects the optimum reference signal for the UE based on the CRS or CSI-RS number corresponding to the optimum CSI measurement result.

a4. The base station transmits the optimum CRS or CSI-RS to the UE.

Specifically, the base station acquires the CQI value in each CSI measurement result among the six CSI measurement results fed back by the UE in step a3, and CRS or CSI corresponding to the CSI measurement result having the maximum CQI value. -RS, the optimum CRS or CSI-RS measurement result, or the optimum CRS or CSI-RS number is transmitted to the UE so that the UE is after the limit measurement subframe set and the next limit measurement subframe. In each subframe before the set is set, the optimum CRS or CSI-RS settings transmitted by the base station are received and CSI measurements and reports are performed according to the optimum CRS or CSI-RS settings.

By arbitrary selection, the UE corresponds to the CSI measurement result having the maximum CQI value or the CSI measurement result having the maximum CQI value according to the CQI value in each CSI measurement result among the six CSI measurement results for the base station. The CRS or CSI-RS number to be used can be reported. The base station acquires the optimum CSI measurement result or the optimum CSI or CSI-RS number fed back by the UE in step a3, and transmits the optimum CRS or CSI-RS resource to the UE accordingly, so that the UE can perform the optimum CSI measurement result. In each subframe after the limit measurement subframe set and before the next limit measurement subframe set is set, it receives the optimum CRS or CSI-RS settings transmitted by the base station and is optimal. Make sure to perform CSI measurements and reports according to the CRS or CSI-RS settings.

According to the resource setting and channel quality measurement methods provided in this embodiment of the present invention, the UE has six CRSs or CSIs transmitted by the base station in six subframes within the set limit measurement subframe set. -RS is received and N times CSI measurement is performed based on 6 different CRS or CSI-RS to obtain 6 CSI measurement results. The base station determines the optimum CRS or CSI-RS for the UE based on the six CSI measurement results, the optimum CSI measurement result reported by the UE, or the CRS or CSI-RS number corresponding to the optimum CSI measurement result. Select and send the optimal CRS or CSI-RS to the UE. To configure the best CRS or CSI-RS for the UE, the base station configures the UE with CRS or CSI-RS resource configuration information for all possible combinations in the drive network. In the solution provided in the present invention, six different CRS or CSI-RSs are configured with a limited measurement subframe set, as compared to prior art where the UE needs to perform channel quality measurements and feedback separately. In the subframes in the set limit measurement subframe set set for the UE in the six subframes of the base station, only the optimum reference signal selected from the M reference signals for the UE As a result, unnecessary CRS or CSI-RS settings by the base station are reduced. Therefore, the overhead of CRS or CSI-RS and the corresponding measurement and feedback is reduced and resources are saved.

One embodiment of the present invention provides a resource setting method. As shown in FIG. 4, the method can be carried out by a base station and can specifically include the following steps:

301. The base station sets M channel quality measurement processes for the UE in N time units in the time unit set.

Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information. The reference signal configuration information is used by the UE to perform channel quality measurements based on the configured reference signal. The M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes a maximum of N channel quality measurement processes, and L ≦ M ≦ L × N.

For example, the time unit set can be a limit measurement subframe set set by the base station for the UE. The base station sets up M channel quality measurement processes for the UE in N subframes in the limit measurement subframe set. The N subframes can be N consecutive subframes or N discontinuous subframes. Specifically, the base station sets at least one channel quality measurement process for the UE in each subframe.

Specifically, each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information, and a precoding matrix corresponding to any two types of channel quality measurement processes. The information is different. The precoding matrix corresponding to each channel quality measurement process in the L types of channel quality measurement processes can be the reference signal beam information corresponding to the channel quality measurement process. In addition, the beams on which the reference signals corresponding to each type of channel quality measurement process are based are different from each other, i.e., the reference signals corresponding to each type of channel quality measurement process are associated with the weighting factors corresponding to the different beams. Specifically, the reference signal is a cell-specific reference signal (for example, a cell-specific reference signal (CRS) resource for short) or a user-specific reference signal (channel state information reference signal (Channel State Information Reference)). Signal, abbreviated as CSI-RS) resource) is included. This is not limited in the present invention.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

Specifically, when a base station configures a UE to perform channel quality measurements and reports within a time unit set, the base station periodically according to a predetermined period of time and has M pieces within the time unit set. The UE can be configured to perform channel quality measurement and reporting for the channel quality measurement process. The predetermined period refers to a long period in which the base station sets the UE to perform channel quality measurements and reports within an hourly set. The UE performs channel quality measurement and reporting within a time unit set according to a predetermined period of time. Alternatively, the base station can configure aperiodic trigger signaling for the UE, allowing the UE to perform channel quality measurements and reports within a time unit set according to the trigger signaling instructions.

Optionally, the time unit set is notified by the base station to the UE using control channels or upper layer signaling.

For example, the time unit set can be notified to the UE by the base station using the control channel. For example, the base station can add trigger signaling to the DCI format of the PDCCH and send the DCI format to the UE so that the UE knows the time unit set set by the base station according to the trigger identifier in the trigger signaling. To do so. Alternatively, the time unit set can be notified by the base station to the UE using upper layer signaling. For example, the base station uses RRC signaling to send trigger signaling to the UE so that the UE knows the time unit set according to the trigger identifier in the trigger signaling.

Optionally, each channel quality measurement process in the M channel quality measurement processes includes an identification field. The identification field contains channel quality measurement processing identification information. The channel quality measurement process identification information is used to indicate to the base station or UE the type to which the channel quality measurement process belongs. The identification information in the same type of channel quality measurement process is the same.

Specifically, if the number of channel quality measurement processes corresponding to a type of channel quality measurement process is greater than 1, the base station further notifies the UE of the channel quality measurement processes belonging to that type of channel quality measurement process. It must be indicated, and therefore an identification field must be added to each channel quality measurement process for that type of channel quality measurement process to indicate to the UE which type the channel quality measurement process belongs to. For example, if the channel quality measurement process is a CSI process, the base station adds a domain field, eg, a channel state information processing class identification (CSI-Processs-Class Identity) field, to each CSI process and is among the L types. Can indicate the type to which the CSI process of

By option, each type of channel quality measurement process among the L types of channel quality measurement process corresponds to one channel quality measurement result. The channel quality measurement result corresponding to each type of channel quality measurement process is the channel quality measurement result in all the channel quality measurement processes belonging to the type and in the M channel quality measurement processes by the UE or the base station. Obtained based on.

Channel quality measurement results include at least one of CQI, PMI, RI, RSRP, RSRQ, or RSSI. Specifically, the base station or UE separately collects statistical values regarding channel quality measurement results corresponding to all channel quality measurement processes of each type of channel quality measurement process, and performs each type of channel quality measurement process. Acquire the corresponding channel quality measurement result. Each type of channel quality measurement process corresponds to one channel quality measurement result.

According to the resource setting method provided in this embodiment of the present invention, the base station sets M channel quality measurement processes for the UE in N time units in the set time unit set. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the L-type channel quality measurement process settings and the corresponding channel quality measurements, the base station selects the optimal type of channel quality measurement process for the UE and further selects the optimal reference signal settings. Can be done. When setting the best reference signal for the UE, the base station only needs to set the optimum channel quality measurement process for the UE at each time unit outside the time unit set, and as a result, the base station refers to it. Resources are saved by reducing signal, channel quality measurement processing, and corresponding measurement and feedback overhead.

Optionally, after step 301, the method provided in this embodiment further comprises the following steps, as shown in FIG.

302. The base station selects the optimum type of channel quality measurement process according to the channel quality measurement result corresponding to the L types of channel quality measurement process.

303. The base station transmits a reference signal to the UE according to the reference signal setting information corresponding to that type of channel quality measurement process.

According to the additional resource setting method provided in this embodiment of the present invention, the base station sets M channel quality measurement processes for the UE in N time units within the set time unit set. .. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. The base station selects the optimum type of channel quality measurement process from the channel quality measurement results corresponding to each type of channel quality measurement process among the L types of channel quality measurement processes, and that type of channel quality measurement process. The reference signal is transmitted to the UE according to the reference signal setting information corresponding to, and the unnecessary reference signal setting by the base station is reduced. In addition, if the base station sets the best reference signal for the UE, the base station sets the UE with the optimal type of channel quality measurement process selected for each time unit outside the time unit set. As a result, the base station reduces reference signal, channel quality measurement processing, and corresponding measurement and feedback overhead, saving resources.

One embodiment of the present invention provides a channel quality measuring method. For explanations of technical terms, concepts, and the like related to the fourth embodiment in the fifth embodiment, refer to the explanation of the fourth embodiment. Details will not be described again in this embodiment.

This embodiment can be implemented by the UE. Specifically, as shown in FIG. 6, the channel quality measuring method specifically includes the following steps.

401. The UE receives M channel quality measurement processes set by the base station in N time units in the time unit set.

Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information. The reference signal configuration information is used by the UE to perform channel quality measurements based on the configured reference signal. The M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes a maximum of N channel quality measurement processes, and L ≦ M ≦ L × N.

Specifically, the time unit set is notified by the base station to the UE using upper layer signaling or control channels. In addition, the time unit set is notified to the UE periodically or aperiodically by the base station.

402. The UE executes channel quality measurement based on M set channel quality measurement processes and reference signals corresponding to each channel quality measurement process.

According to the channel quality measurement method provided in this embodiment of the present invention, the UE receives M channel quality measurement processes set by the base station in N time units within the set time unit set. Then, the channel quality measurement is executed based on the M set channel quality measurement processes and the reference signal corresponding to each channel quality measurement process. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the channel quality measurement for the L types of channel quality measurement process, the UE can report the channel quality measurement result corresponding to each type of channel quality measurement process separately, and as a result, the base station The optimum type of channel quality measurement process for the UE can be selected, and the optimum reference signal setting can be further selected. Therefore, if the base station sets the best reference signal for the UE, the base station can set the optimal type of channel quality measurement process for the UE at each time unit outside the time unit set. As a result, the overhead of the corresponding measurements and feedback performed by the UE on the reference signal is reduced, saving resources.

Optionally, after step 402, the method further comprises the following steps, as shown in FIG.

403. The UE reports the channel quality measurement result corresponding to the L type channel quality measurement process to the base station, and the base station is the optimum type according to the channel quality measurement result corresponding to the L type channel quality measurement process. Make sure to select the channel quality measurement process of.

404. The UE receives the reference signal transmitted by the base station according to the reference signal setting information corresponding to the selected optimum type of channel quality measurement processing.

According to the additional channel quality measurement method provided in this embodiment of the present invention, the UE performs M channel quality measurement processes set by the base station in N time units within the set time unit set. It receives and executes channel quality measurement based on M set channel quality measurement processes and reference signals corresponding to each channel quality measurement process. The UE then reports the channel quality measurement results corresponding to the L types of channel quality measurement processing to the base station, and the base station is based on the channel quality measurement results corresponding to the L types of channel quality measurement processing. Allows you to select the best type of channel quality measurement process. Finally, the UE only needs to receive the reference signal transmitted by the base station according to the reference signal configuration information corresponding to the selected optimal type of channel quality measurement process. Therefore, the measurement and feedback performed by the UE for unwanted reference signals is reduced. In addition, when configuring the best reference signal for the UE, the base station can configure the UE with the optimal type of channel quality measurement process selected for each time unit outside the time unit set. As a result, the overhead of the corresponding measurements and feedback performed by the UE on the reference signal is reduced and resources are saved.

The following describes an example of the resource setting and channel quality measurement methods provided in one embodiment of the present invention in a particular scenario. For explanations of technical terms, concepts, and the like related to the above-described embodiments in the following embodiments, refer to the above-described embodiments.

For example, for N = 6 (see the 3DUMi scenario described in Background Techniques for specific application scenarios), virtual weighting is performed on the vertical antenna elements in each row using the drive network, 6 Antenna ports corresponding to two different beams are acquired. The virtual weighting matrix corresponding to the 6 beams is
Can be designed as. Each column of the matrix corresponds to one vertical beam of a single port, and each beam corresponds to one direction and one width. α ₁ and α ₂ are complex numerical weighting factors, A ₁ is a down tilt beam vector pointing to 12 degrees, and A ₂ is a down tilt beam vector pointing to -6 degrees. Specifically, the first and second columns of the matrix correspond to a wide beam pointing at 12 degrees in the maximum value direction. The third and fourth columns of the matrix correspond to a wide beam pointing -6 degrees in the maximum value direction. The fifth column of the matrix corresponds to a narrow beam pointing 12 degrees in the direction of the maximum value. The sixth column of the matrix corresponds to a narrow beam pointing -6 degrees in the direction of the maximum value.

Based on the above contents, when the channel quality measurement process in this embodiment is CSI process, as shown in FIG. 8, the resource setting and channel quality measurement method provided in this embodiment of the present invention are concrete. It includes the following steps.

b1. The base station sets up four channel quality measurement processes for the UE in each subframe within the limiting measurement subframe set according to six different beams.

Specifically, based on 6 different beams, the base station classifies 24 CSI processes into 6 types, each type corresponding to one vertical beam.

b2. The UE receives four CSI processes set by the base station in each subframe within the limit measurement subframe set.

b3. The UE executes the CSI measurement based on the 24 set CSI processes and the reference signal corresponding to each CSI process.

b4. The UE or base station selects the optimum CSI processing type corresponding to the optimum beam from the six CSI processing types based on the CSI measurement result corresponding to each type of CSI processing in the 24 CSI processing.

For example, when the process described in step b4 is executed by the UE, step b4 specifically includes the following steps.

(1). The UE classifies 24 CSI processes according to 6 different vertical beams in the drive network, where each type of CSI process corresponds to one vertical beam.

(2). The UE subsequently combines the CSI measurement results corresponding to all CSI processing of each type of CSI processing to acquire the CSI measurement results for each type of CSI processing.

Specifically, if one type of CSI processing is used as an example and that type of CSI processing includes four CSI processing, the UE acquires four CSI measurement results corresponding to the four CSI processing. Then, a preferred combination of the four CSI measurement results is performed to obtain the CSI measurement results for that type of CSI processing.

Specifically, if the CSI measurement result corresponding to the CSI processing in this embodiment includes at least one of CQI or RI, the UE preferentially combines the four CSI measurement results of that type of CSI processing. The process of executing the above can be performed by using the following process. The UE separately averages all CQI values based on the same RI value in the four CSI measurement results to obtain the CQI average value corresponding to each RI, and then obtains the CQI average value corresponding to the maximum RI and obtains the type. It is used as the CSI measurement result of the CSI processing of. Alternatively, the UE selects the maximum CQI value 4 separately from all the CQI values in the four CSI measurement results, and then uses the maximum CQI value 4 as the CSI measurement result for that type of CSI processing.

(3). The UE selects the optimum CSI processing type corresponding to the optimum beam from the six CSI measurement results corresponding to the six types of CSI processing.

b5. The base station transmits a reference signal to the UE according to the reference signal setting information corresponding to the optimum CSI processing type corresponding to the optimum beam.

According to the resource setting and channel quality measurement methods provided in this embodiment of the present invention, the base station performs four CSI processes on the UE in each subframe within the restricted measurement subframe set according to six different beams. Set. After receiving the CSI processing set by the base station, the UE performs the corresponding CSI measurement and feedback. The UE or base station then selects the optimal beam from the six beams according to the CSI measurement results of the vertical beam in the column corresponding to each CSI process among the 24 received CSI processes. Finally, the base station transmits a reference signal to the UE according to the reference signal setting information corresponding to the CSI processing of the optimum beam. Therefore, if the base station sets the best reference signal for the UE, the base station only needs to set the optimal CSI processing selected for the UE in each subframe in the limiting measurement subframe set. As a result, the corresponding measurement and feedback overhead performed by the UE on the reference signal is reduced and resources are saved.

One embodiment of the present invention provides a base station. As shown in FIG. 9, the base station 5 includes a transmitting unit 51, a receiving unit 52, and a selection unit 53.

The transmission unit 51 is configured to transmit M reference signals to the user equipment UE in N time units in the time unit set.

The reference signal is used by the UE to perform channel quality measurements. Each reference signal among the M reference signals corresponds to one precoding matrix information.

The receiving unit 52 is configured to receive the channel quality instruction information transmitted by the UE. The channel quality instruction information is determined by the UE according to M reference signals.

The selection unit 53 is configured to select the best reference signal resource for the UE according to the channel quality instruction information.

The transmission unit 51 is further configured to transmit the optimum reference signal to the UE according to the optimum reference signal resource.

By optional option, the transmission unit 51 is further configured to transmit resource setting information of M reference signals to the UE in N time units in the time unit set.

The reference signal resource setting information includes at least one of the reference signal port information, the reference signal number information, or the precoding information corresponding to the reference signal.

Optionally, the channel quality indication information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

Optionally, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

Optionally, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

If the reference signal is a cell-specific reference signal by arbitrary selection, the base station instructs the resource setting information of the reference signal using the broadcast channel.

When transmitting the optimum reference signal to the UE according to the optimum reference signal resource by arbitrary selection, the transmission unit 51 is specifically after the time unit set and before the next time unit set is set. At each time unit, it is configured to transmit the optimum reference signal to the UE according to the optimum reference signal resource.

According to the base station provided in this embodiment of the present invention, the base station only needs to transmit only M reference signals to the UE in N time units within a set time unit set. After receiving the M reference signals, the UE performs M channel quality measurements based on the M different reference signals, obtains the M channel quality measurement results, and obtains the M channel quality measurement results. Channel quality instruction information is transmitted to the base station according to the above. The base station selects the optimum reference signal for the UE according to the channel quality instruction information, and transmits the optimum reference signal to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set for the UE in N time units within the set time unit set. As a result, unnecessary reference signal settings by the base station are reduced. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

One embodiment of the present invention provides a user device. As shown in FIG. 10, the user device 6 includes a receiving unit 61 and a reporting unit 62.

The receiving unit 61 is configured to receive M reference signals transmitted by the base station in N time units in the time unit set. Each reference signal among the M reference signals corresponds to one precoding matrix information.

The reporting unit 62 reports the channel quality instruction information to the base station based on the M reference signals received by the receiving unit so that the base station selects the optimum reference signal resource for the UE according to the channel quality instruction information. It is composed of.

The receiving unit 61 is further configured to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource.

Optionally, the receiving unit 61 is further configured to receive resource setting information for M reference signals transmitted by the base station in N time units within the time unit set.

The reference signal resource setting information includes the reference signal port information, the reference signal number information, or the precoding information corresponding to the reference signal.

Optionally, the channel quality indication information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

Optionally, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

Optionally, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

Optionally, if the reference signal is a cell-specific reference signal, as shown in FIG. 10, the user equipment 6 further includes a detection unit 63.

The detection unit 63 is configured to detect the broadcast channel and acquire the resource setting information of the reference signal.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

When receiving the optimum reference signal transmitted by the base station according to the optimum reference signal resource by arbitrary selection, the receiving unit 61 is specifically set after the time unit set and the next time unit set. It is configured to receive the optimal reference signal transmitted by the base station according to the optimal reference signal resource at each time unit before it is done.

According to the user equipment provided in this embodiment of the present invention, the UE receives M reference signals transmitted by the base station in N time units within a set time unit set and M pieces. Channel quality measurement is performed M times based on different reference signals of, M channel quality measurement results are acquired, channel quality instruction information is acquired according to M channel quality measurement results, and the base station performs channel quality instruction. The optimum reference signal for the UE is selected according to the information, and the optimum reference signal is transmitted to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set and set for the UE in N time units within a set time unit set. In a time unit outside the set time unit set, the base station sets only the optimum reference signal selected from the M reference signals for the UE, and as a result, the setting of unnecessary reference signals by the base station is reduced. .. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

One embodiment of the present invention provides a base station. As shown in FIG. 11, the base station 7 includes a setting unit 71.

The setting unit 71 is configured to set M channel quality measurement processes for the user equipment UE in N time units in the time unit set. Each channel quality measurement process corresponds to one reference signal setting information. The reference signal configuration information is used by the UE to perform channel quality measurements based on the configured reference signal. The M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes a maximum of N channel quality measurement processes, and L ≦ M ≦ L × N.

By arbitrary selection, each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information, and the precoding matrix information corresponding to any two types of channel quality measurement processes. Is different.

By option, each type of channel quality measurement process among the L types of channel quality measurement process corresponds to one channel quality measurement result. The channel quality measurement result corresponding to each type of channel quality measurement process is the channel quality measurement result in all the channel quality measurement processes belonging to the type and in the M channel quality measurement processes by the UE or the base station. Obtained based on.

By optional, base station 7 further includes selection unit 72 and transmission unit 73, as shown in FIG.

The selection unit 72 is configured to select the optimum type of channel quality measurement process according to the channel quality measurement result corresponding to the L types of channel quality measurement process.

The transmission unit 73 is configured to transmit a reference signal to the UE according to the reference signal setting information corresponding to that type of channel quality measurement process.

By optional option, the channel quality measurement result may be at least one of channel quality index CQI, precoding matrix index PMI, rank index RI, reference signal reception power RSRP, reference signal reception quality RSRQ, or reference signal strength index RSSI. Including.

Optionally, each channel quality measurement process in the M channel quality measurement processes includes an identification field. The identification field contains channel quality measurement processing identification information used to indicate the type to which the channel quality measurement processing belongs. The identification information in the same type of channel quality measurement process is the same.

Optionally, M channel quality measurement processes are notified by the base station to the UE using upper layer signaling or control channels.

Arbitrarily, the base station notifies the UE of M channel quality measurement processes periodically or aperiodically.

According to the base station provided in this embodiment of the present invention, the base station sets M channel quality measurement processes for the UE in N time units within a set time unit set. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the L-type channel quality measurement process settings and the corresponding channel quality measurements, the base station selects the optimal type of channel quality measurement process for the UE and further selects the optimal reference signal settings. Can be done. When setting the best reference signal for the UE, the base station only needs to set the optimum channel quality measurement process for the UE at each time unit outside the time unit set, and as a result, the base station refers to it. Resources are saved by reducing signal, channel quality measurement processing, and corresponding measurement and feedback overhead.

One embodiment of the present invention provides a user device 8. As shown in FIG. 12, the user device 8 includes a receiving unit 81 and a measuring unit 82.

The receiving unit 81 is configured to receive M channel quality measurement processes set by the base station in N time units in the time unit set. Each channel quality measurement process corresponds to one reference signal setting information. The M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes a maximum of N channel quality measurement processes, and L ≦ M ≦ L × N.

The measurement unit 82 is configured to execute the channel quality measurement based on the M set channel quality measurement processes received by the reception unit 81 and the reference signal corresponding to each channel quality measurement process.

By arbitrary selection, each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information, and the precoding matrix information corresponding to any two types of channel quality measurement processes. Is different.

By option, each type of channel quality measurement process among the L types of channel quality measurement process corresponds to one channel quality measurement result. The channel quality measurement result corresponding to each type of channel quality measurement process is the channel quality measurement result in all the channel quality measurement processes belonging to the type and in the M channel quality measurement processes by the UE or the base station. Obtained based on.

Optionally, the user device 8 further includes a reporting unit 83, as shown in FIG.

The reporting unit 83 reports the channel quality measurement results corresponding to the L types of channel quality measurement processing to the base station, and the base station optimizes according to the channel quality measurement results corresponding to the L types of channel quality measurement processing. It is configured to select various types of channel quality measurement processing.

The receiving unit 81 is further configured to receive the reference signal transmitted by the base station according to the reference signal setting information corresponding to the selected optimum type of channel quality measurement process.

By optional option, the channel quality measurement result may be at least one of channel quality index CQI, precoding matrix index PMI, rank index RI, reference signal reception power RSRP, reference signal reception quality RSRQ, or reference signal strength index RSSI. Including.

Optionally, each channel quality measurement process in the M channel quality measurement processes includes an identification field. The identification field contains channel quality measurement processing identification information used to indicate the type to which the channel quality measurement processing belongs. The identification information in the same type of channel quality measurement process is the same.

Optionally, M channel quality measurement processes are notified by the base station to the UE using upper layer signaling or control channels.

Arbitrarily, the base station notifies the UE of M channel quality measurement processes periodically or aperiodically.

According to the user equipment provided in this embodiment of the present invention, the UE receives M channel quality measurement processes set by the base station in N time units within the set time unit set. Channel quality measurement is executed based on M set channel quality measurement processes and reference signals corresponding to each channel quality measurement process. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the channel quality measurement for the L types of channel quality measurement process, the UE can report the channel quality measurement result corresponding to each type of channel quality measurement process separately, and as a result, the base station The optimum type of channel quality measurement process for the UE can be selected and the optimum reference signal setting can be further selected. Therefore, if the base station sets the best reference signal for the UE, the base station can set the optimal type of channel quality measurement process for the UE at each time unit outside the time unit set. As a result, the overhead of the corresponding measurements and feedback performed by the UE on the reference signal is reduced and resources are saved.

One embodiment of the present invention provides a base station 9. As shown in FIG. 13, the base station 9 includes a communication unit 91 and a processor 92.

The communication unit 91 is configured to communicate with an external device.

Processor 92
Sending M reference signals to the user equipment UE in N time units in a time unit set, the reference signals being used by the UE to perform channel quality measurements, of the M reference signals. Each reference signal in it corresponds to one precoding matrix information, transmitting and
The communication unit 91 is used to receive the channel quality instruction information transmitted by the UE, and the channel quality instruction information is determined and received by the UE according to M reference signals.
Choosing the best reference signal resource for the UE according to the channel quality indications,
The communication unit 91 is configured to transmit the optimum reference signal to the UE according to the optimum reference signal resource.

Arbitrarily, the processor 92 is further configured to use the communication unit 91 to transmit resource setting information of M reference signals to the UE in N time units in the time unit set. The reference signal resource setting information includes at least one of the reference signal port information, the reference signal number information, or the precoding information corresponding to the reference signal.

Optionally, the channel quality indication information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

Optionally, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

Optionally, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

If the reference signal is a cell-specific reference signal by arbitrary selection, the base station instructs the resource setting information of the reference signal using the broadcast channel.

When, optionally, the communication unit 91 is used to transmit the optimum reference signal to the UE according to the optimum reference signal resource, the processor 92 specifically includes:
The communication unit 91 is configured to transmit the optimum reference signal to the UE according to the optimum reference signal resource in each time unit after the time unit set and before the next time unit set is set. Will be done.

According to the base station provided in this embodiment of the present invention, the base station only needs to transmit only M reference signals to the UE in N time units within a set time unit set. After receiving the M reference signals, the UE performs M channel quality measurements based on the M different reference signals, obtains the M channel quality measurement results, and obtains the M channel quality measurement results. Channel quality instruction information is transmitted to the base station according to the above. The base station selects the optimum reference signal for the UE according to the channel quality instruction information, and transmits the optimum reference signal to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set for the UE in N time units within the set time unit set. As a result, unnecessary reference signal settings by the base station are reduced. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

One embodiment of the present invention provides user equipment s10. As shown in FIG. 14, the user equipment s10 includes a communication unit s101 and a processor s102.

The communication unit s101 is configured to communicate with an external device.

The processor s102
The communication unit s101 is used to receive M reference signals transmitted by the base station in N time units in the time unit set, and each reference signal in the M reference signals is 1. Corresponding to one precoding matrix information, receiving and
To report the channel quality instruction information to the base station based on the M reference signals so that the base station selects the optimum reference signal resource for the UE according to the channel quality instruction information.
The communication unit s101 is configured to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource.

Optionally, the processor s102 is further configured to use the communication unit s101 to receive resource setting information for M reference signals transmitted by the base station in N time units within the time unit set. ..

The reference signal resource setting information includes at least one of the reference signal port information, the reference signal number information, or the precoding information corresponding to the reference signal.

Optionally, the channel quality indication information includes M channel quality measurement results, optimal channel quality measurement results, or reference signal numbers.

Optionally, the time unit set is notified by the base station to the UE using upper layer signaling or control channels.

Optionally, the time unit set is notified to the UE periodically or aperiodically by the base station.

Optionally, the reference signal includes a cell-specific reference signal or a user-specific reference signal.

If the reference signal is a cell-specific reference signal by optional selection,
The processor s102 is further configured to detect the broadcast channel and acquire the resource setting information of the reference signal.

When, optionally, the communication unit s101 is used to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource, the processor s102 specifically comprises.
In each time unit after the time unit set and before the next time unit set is set, the communication unit s101 is used to receive the optimum reference signal transmitted by the base station according to the optimum reference signal resource. It is configured to do.

According to the user equipment provided in this embodiment of the present invention, the UE receives M reference signals transmitted by the base station in N time units within a set time unit set and M pieces. Channel quality measurement is performed M times based on different reference signals of, M channel quality measurement results are acquired, channel quality instruction information is acquired according to M channel quality measurement results, and the base station performs channel quality instruction. The optimum reference signal for the UE is selected according to the information, and the optimum reference signal is transmitted to the UE. To set the best reference signal for the UE, the base station sets the reference signal for the UE for all possible combinations and causes the UE to perform channel quality measurements and feedback separately. In the solution provided in the present invention, as compared to the prior art that is required, M different reference signals are set and set for the UE in N time units within a set time unit set. In a time unit outside the set time unit set, the base station sets only the optimum reference signal selected from the M reference signals for the UE, and as a result, the setting of unnecessary reference signals by the base station is reduced. .. Therefore, the reference signal and the corresponding measurement and feedback overhead are reduced and resources are saved.

One embodiment of the present invention provides a base station 11. As shown in FIG. 15, the base station 11 includes a communication unit 111 and a processor 112.

The communication unit 111 is configured to communicate with an external device.

Processor 112
The communication unit 111 is used to set M channel quality measurement processes for the user equipment UE in N time units in the time unit set, and each channel quality measurement process sets one reference signal. Corresponding to the information, the reference signal setting information is used by the UE to perform channel quality measurement based on the set reference signal, and M channel quality measurement processes perform L types of channel quality measurement processes. Each type of channel quality measurement process includes up to N channel quality measurement processes and is configured to set L ≦ M ≦ L × N.

By arbitrary selection, each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information, and the precoding matrix information corresponding to any two types of channel quality measurement processes. Is different.

By option, each type of channel quality measurement process among the L types of channel quality measurement process corresponds to one channel quality measurement result. The channel quality measurement result corresponding to each type of channel quality measurement process is the channel quality measurement result in all the channel quality measurement processes belonging to the type and in the M channel quality measurement processes by the UE or the base station. Obtained based on.

By optional option, the processor 112 selects the optimum type of channel quality measurement process according to the channel quality measurement result corresponding to the L types of channel quality measurement process, and uses the communication unit 111 to measure that type of channel quality. It is further configured to transmit a reference signal to the UE according to the reference signal setting information corresponding to the processing.

By optional option, the channel quality measurement result may be at least one of channel quality index CQI, precoding matrix index PMI, rank index RI, reference signal reception power RSRP, reference signal reception quality RSRQ, or reference signal strength index RSSI. Including.

Optionally, each channel quality measurement process in the M channel quality measurement processes includes an identification field. The identification field contains channel quality measurement processing identification information used to indicate the type to which the channel quality measurement processing belongs. The identification information in the same type of channel quality measurement process is the same.

Optionally, M channel quality measurement processes are notified by the base station to the UE using upper layer signaling or control channels.

Arbitrarily, the base station notifies the UE of M channel quality measurement processes periodically or aperiodically.

According to the base station provided in this embodiment of the present invention, the base station sets M channel quality measurement processes for the UE in N time units within a set time unit set. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the L-type channel quality measurement process settings and the corresponding channel quality measurements, the base station selects the optimal type of channel quality measurement process for the UE and further selects the optimal reference signal settings. Can be done. When setting the best reference signal for the UE, the base station only needs to set the optimum channel quality measurement process for the UE at each time unit outside the time unit set, and as a result, the base station refers to it. Resources are saved by reducing signal, channel quality measurement processing, and corresponding measurement and feedback overhead.

One embodiment of the present invention provides a user device 12. As shown in FIG. 16, the user equipment 12 includes a communication unit 121 and a processor 122.

The communication unit 121 is configured to communicate with an external device.

Processor 122
The communication unit 121 is used to receive M channel quality measurement processes set by the base station in N time units in the time unit set, and each channel quality measurement process sets one reference signal. Corresponding to the information, M channel quality measurement processes include L types of channel quality measurement processes, each type of channel quality measurement process includes up to N channel quality measurement processes, L ≤ M ≤ L × N, receiving and
It is configured to perform channel quality measurement based on M set channel quality measurement processes and reference signals corresponding to each channel quality measurement process.

By arbitrary selection, each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information, and the precoding matrix information corresponding to any two types of channel quality measurement processes. Is different.

By option, each type of channel quality measurement process among the L types of channel quality measurement process corresponds to one channel quality measurement result. The channel quality measurement result corresponding to each type of channel quality measurement process is the channel quality measurement result in all the channel quality measurement processes belonging to the type and in the M channel quality measurement processes by the UE or the base station. Obtained based on.

Optionally, the processor 122 uses the communication unit 121 to report to the base station the channel quality measurement results corresponding to the L types of channel quality measurement processing, and the base station has L types of channel quality measurement. Make sure to select the optimum type of channel quality measurement process according to the channel quality measurement result corresponding to the process, and use the communication unit 121 to set the reference signal corresponding to the selected optimum type of channel quality measurement process. It is further configured to receive the reference signal transmitted by the base station according to the information.

By optional option, the channel quality measurement result may be at least one of channel quality index CQI, precoding matrix index PMI, rank index RI, reference signal reception power RSRP, reference signal reception quality RSRQ, or reference signal strength index RSSI. Including.

Optionally, each channel quality measurement process in the M channel quality measurement processes includes an identification field. The identification field contains channel quality measurement processing identification information used to indicate the type to which the channel quality measurement processing belongs. The identification information in the same type of channel quality measurement process is the same.

Optionally, M channel quality measurement processes are notified by the base station to the UE using upper layer signaling or control channels.

Arbitrarily, the base station notifies the UE of M channel quality measurement processes periodically or aperiodically.

According to the user equipment provided in this embodiment of the present invention, the UE receives M channel quality measurement processes set by the base station in N time units within the set time unit set. Channel quality measurement is executed based on M set channel quality measurement processes and reference signals corresponding to each channel quality measurement process. Each channel quality measurement process in the M channel quality measurement processes corresponds to one reference signal setting information, and the M channel quality measurement processes include L types of channel quality measurement processes of each type. The channel quality measurement process includes a maximum of N channel quality measurement processes. Therefore, based on the channel quality measurement for the L types of channel quality measurement process, the UE can report the channel quality measurement result corresponding to each type of channel quality measurement process separately, and as a result, the base station The optimum type of channel quality measurement process for the UE can be selected, and the optimum reference signal setting can be further selected. Therefore, if the base station sets the best reference signal for the UE, the base station can set the optimal type of channel quality measurement process for the UE at each time unit outside the time unit set. As a result, the overhead of the corresponding measurements and feedback performed by the UE on the reference signal is reduced, saving resources.

For the sake of brevity and concise description, those skilled in the art will clearly understand that the above division of functional modules is performed as an example for illustration. In practical applications, the above functions can be assigned to different functional modules and performed on demand, i.e. the internal structure of the device will be in different functional modules to perform all or part of the above functions. It is divided. For the detailed working steps of the above-mentioned system and unit, refer to the corresponding steps in the embodiment of the above-mentioned method, and the details are not described again in this specification.

It should be understood that in some embodiments provided in this application, the disclosed systems and methods can be implemented in other ways. For example, the embodiments of the described system are only examples. For example, a unit split is just a logical functional split and can be another split in an actual implementation. For example, multiple units or components can be combined or integrated into other systems, or some features may be ignored or not implemented. In addition, the presented or discussed interconnect or direct coupling or communication connection can be implemented via several interfaces. Indirect coupling or communication connections between units can be performed electronically, mechanically, or in other forms.

In addition, the functional units in the embodiments of the present application can be integrated into one processing unit, or each of these units can physically exist independently, or two or more units. Are integrated into one unit. The integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The aforementioned embodiments are merely intended to illustrate the technical solutions of this application and are not intended to limit this application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be described in the aforementioned embodiments without departing from the spirit and scope of the technical solutions of the embodiments of the present application. Those skilled in the art should understand that further modifications can be made to the technical solutions, or substitutions equivalent to some of their technical features can be made.

Claims (14)

A step of transmitting radio resource control (RRC) signaling to a user device (UE) by a base station, wherein the RRC signaling indicates a time unit set, and a transmission step.
A step of transmitting M reference signals to the user equipment in N time units in the time unit set by the base station, wherein the M reference signals are measured by the UE for M channel quality. Used to perform the process , the M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process includes up to N channel quality measurement processes. A step of transmitting, in which L ≦ M ≦ L × N, and each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information.
A step of receiving channel quality instruction information transmitted by the UE by the base station, and a step of receiving the channel quality instruction information determined by the UE according to the M reference signals.
A step of selecting a reference signal resource for the UE by the base station according to the channel quality instruction information.
A resource setting method including a step of transmitting a reference signal to the UE according to the reference signal resource by the base station. The method of claim 1, wherein the channel quality instruction information includes a reference signal number. The method according to claim 1 or 2, wherein the reference signal includes a user-specific reference signal. A step of receiving radio resource control (RRC) signaling from a base station by a user device (UE) , wherein the RRC signaling indicates a time unit set, and a receiving step.
The step of receiving the M reference signals transmitted by the base station in N time units in the time unit set by the user equipment, wherein the M reference signals are M channels by the UE. Used to perform quality measurement processes, the M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process has a maximum of N channel quality measurement processes. Including, L ≦ M ≦ L × N, and a receiving step in which each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information.
A step of reporting channel quality instruction information to the base station based on the M reference signals by the user equipment.
A channel quality measurement method comprising the step of receiving a reference signal transmitted by the base station by the user equipment according to a reference signal resource. The method of claim 4, wherein the channel quality instruction information includes a reference signal number. The method of claim 4 or 5, wherein the reference signal includes a user-specific reference signal. It ’s a base station,
A transmission unit configured to transmit radio resource control (RRC) signaling to a user device (UE), wherein the RRC signaling indicates a time unit set, and the transmission unit is N units in the time unit set. is further configured to transmit M reference signals to the user equipment in time unit, it is used for the M reference signals to perform the M channel quality measurement process by the UE, the M The channel quality measurement process of the above includes L types of channel quality measurement processes, and each type of channel quality measurement process includes a maximum of N channel quality measurement processes, and L ≦ M ≦ L × N. A transmission unit and a transmission unit in which each channel quality measurement process in the various types of channel quality measurement processes corresponds to one precoding matrix information.
A receiving unit configured to receive channel quality instruction information transmitted by the UE, wherein the channel quality instruction information is determined by the UE according to the M reference signals.
A selection unit configured to select a reference signal resource for the UE according to the channel quality instruction information.
A base station in which the transmitting unit is further configured to transmit a reference signal to the UE according to the reference signal resource. The base station according to claim 7, wherein the channel quality instruction information includes a reference signal number. The base station according to claim 7 or 8, wherein the reference signal includes a user-specific reference signal. It is a user device (UE)
A receiving unit configured to receive M reference signals transmitted by a base station in N time units in a time unit set, wherein the M reference signals are transmitted by the UE to M channels. Used to perform quality measurement processes, the M channel quality measurement processes include L types of channel quality measurement processes, and each type of channel quality measurement process has a maximum of N channel quality measurement processes. The receiving unit, which includes, L ≦ M ≦ L × N, and each channel quality measurement process in the L types of channel quality measurement processes corresponds to one precoding matrix information.
It includes a reporting unit configured to report channel quality instruction information to the base station based on the M reference signals.
A user device in which the receiving unit is further configured to receive a reference signal transmitted by the base station according to a reference signal resource. The user device according to claim 10, wherein the channel quality instruction information includes a reference signal number. The user device according to claim 10 or 11, wherein the reference signal includes a user-specific reference signal. A program that causes a computer to perform the method according to any one of claims 1 to 6. A computer-readable storage medium in which an instruction for causing a computer device to perform the method according to any one of claims 1 to 6 is recorded.